JP7121273B2 - heating cooker - Google Patents

Description

TECHNICAL FIELD The present invention relates to a heating cooker such as a grill pot and a hot plate.

A conventional heating cooker is disclosed in Patent Document 1 below, for example. The heating cooker of the document includes a heating unit, a heated container detachably placed on the heating unit and heated by the heating unit, a heat sensing unit capable of sensing the heat of the heated container, and a rotating body. and a contact, which can be opened and closed according to temperature changes due to heat flowing from the heat-sensitive part, and which can set the opening and closing temperature of the contact by rotating the rotating body; and a pivoting lever.

Japanese Patent No. 5703976

In the heating cooker, the mode of use is increasing in which the containers to be heated are selectively used depending on the purpose of use or the like. For example, when performing heat cooking, a heated container suitable for heat cooking is used, and when heat retention is performed, a heated container suitable for heat retention is used.

However, in the above-described conventional structure, the set temperature (opening/closing temperature) can be freely changed by the rotating lever regardless of the type of heated container used. For this reason, when the food is kept warm, there is a possibility that the rotating lever is moved to a high temperature range due to an erroneous operation, etc., and the food to be kept warm is scorched or deteriorates rapidly (for example, the meat becomes hard). there were.

In view of the above situation, there has been a demand for a heating cooker that can appropriately set the temperature using a rotating lever in accordance with the type of heated container that is used.

A heating cooker according to a first aspect of the present invention includes a heating section, a heated container, a heat sensitive section, a rotary temperature controller, and a rotating lever. The heating unit is a heat source such as an electric heater. The heated container is an object to be heated by the heating unit, and is detachably placed on the heating unit. Note that the heated container includes a pot, a plate, and a plate. The heat sensitive part can sense the heat of the heated container. The heat sensitive part is arranged, for example, so as to be in contact with the heating part or the container to be heated, or to be positioned in the vicinity of the heating part or the container to be heated. A rotary temperature controller has contacts and a rotating body. This rotary temperature controller opens and closes the contact according to the temperature change caused by the heat flowing from the heat-sensitive portion, and can set the opening and closing temperature of the contact by rotating the rotating body. The rotating lever is manually operated by the user and is connected to the rotating body. That is, the rotating body rotates as the rotating lever rotates. In this heating cooker, either the first heated container having the contact portion on the back side or the second heated container having the non-contact portion on the back side can be selected as the heated container. be. Here, the contact portion is, for example, a protrusion, and in such a case, the non-contact portion is, for example, a plane portion. Further, the contact portion is, for example, a flat portion, and in such a case, the non-contact portion is, for example, a recess opening downward. By the way, this heating cooker includes a moving member and a rotation range limiting member in addition to the above components. The moving member moves in contact with the abutting portion when the first container to be heated is placed on the heating portion, but does not move when the second container to be heated is placed on the heating portion. It does not contact the contact portion and does not move. Here, the “top of the heating unit” may be directly above the heating unit (the container to be heated may come into contact with the heating unit) or may be above the heating unit (the container to be heated may be in contact with the heating unit). may not be in contact with the heating part). The rotation range limiting member limits the rotation range of the rotation lever (and thus the rotation range of the rotating body of the rotary temperature adjuster) as the moving member moves. The rotation range limiting member includes, for example, a member that prevents the rotation lever from exceeding a specific position, a member that pulls or pushes the rotation lever back to a specific position when the rotation lever exceeds the specific position, and the like. mentioned.

As described above, in this heating cooker, when the first heated container is placed on the heating part, the moving member moves in contact with the contact part, but the second heated container moves on the heating part. When the container is placed, the moving member does not contact the non-contact portion and does not move. Then, when the moving member moves, the rotation range of the rotation lever is restricted. If the heat insulating plate is used as the first heated container and the cooking container is used as the second heated container, the rotation range of the rotating lever when the heat insulating plate is placed can be limited to the low temperature range. That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A cooking device according to a second aspect of the present invention is the cooking device according to the first aspect, wherein the rotation range includes a first rotation range and a second rotation range. In this heating cooker, when the rotating lever is in the first rotating range, the moving member can move to the specific position. It becomes impossible to move to the position, and the first container to be heated cannot be placed normally.

In this heating cooker, when the first container to be heated is a heat insulating plate, the first rotating range is a low temperature range, and the second rotating range is a medium to high temperature range, when the rotating lever is in the low temperature range, the temperature is kept warm. The moving member moves to a specific position when the plate is placed. As a result, the rotation range limiting member limits the rotation range of the rotation lever. On the other hand, when the rotating lever is in the middle/high temperature range, the moving member does not move to the specific position, and the heat insulating plate cannot be placed normally. It cannot be restricted. Therefore, when the rotating lever is in the medium temperature range or the high temperature range, the user can notice that the heat retaining plate must be replaced after moving the rotating lever to the low temperature range. That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A cooking device according to a third aspect of the present invention is the cooking device according to the first aspect or the second aspect, wherein the moving member is vertically movable. In this case, it is preferable that the rotating lever rotates along the horizontal plane. Moreover, this cooking device further includes a biasing member. The biasing member biases the moving member upward. Also, the rotation range limiting member is attached to the moving member. The rotation range limiting member is positioned above the rotation lever when the moving member is at the upper end position, and is positioned to the side of the rotation lever (on the rotation track) when the moving member is at the lower end position. side). Here, when the rotation range limiting member is positioned directly above the rotation lever (that is, when the rotation lever is positioned directly below the rotation range limiting member), the moving member moves from the intermediate position to the lower end position. You will not be able to move. In addition, in the relationship with the heating cooker according to the second aspect, when the rotating lever is in the first rotating range, the rotating range limiting member can move to the lateral position of the rotating lever. When the lever is in the second rotation range, the rotation range limiting member comes into contact with the rotation lever and cannot be moved to a specific position, resulting in a state in which the first heated container cannot be placed normally.

As described above, in this heating cooker, the rotation range limiting member is attached to the moving member, and the moving member is biased upward by the biasing member. When the moving member is at the upper end position, the turning range limiting member is positioned above the turning lever, and when the moving member is at the lower end position, the turning range limiting member is on the turning track of the turning lever. located laterally above. Therefore, in this heating cooker, the problem of the present invention can be solved with a relatively small number of parts.

A heating cooker according to a fourth aspect of the present invention is the heating cooker according to the first aspect, wherein the rotation range includes a first rotation range and a second rotation range. In this heating cooker, when the rotating lever is in the first rotating range, the rotating range limiting member is fixed in the specific state without coming into contact with the rotating lever along with the movement of the moving member. When the lever is in the second rotation range, the rotation range limiting member abuts against the rotation lever until the rotation range limiting member is fixed in the specific state with the movement of the moving member. is moved to the first rotation range. In this case, after the rotation range limiting member is fixed in the specific state, the rotation lever cannot be moved to the second rotation range.

In this heating cooker, when the first heated container is the heat insulating plate, the first rotation range is the low temperature range, and the second rotation range is the middle to high temperature range, when the rotation lever is in the low temperature range When the heat insulating plate is placed on the heating unit, the moving member moves, and along with the movement, the rotation range limiting member is fixed in a specific state without coming into contact with the rotating lever. On the other hand, when the heat insulating plate is placed on the heating portion while the rotating lever is in the medium-high temperature range, the moving member moves, and the rotating range limiting member is fixed in the specific state along with the movement. The rotation range limiting member comes into contact with the rotation lever to move the rotation lever to the first rotation range. Therefore, in this heating cooker, when the heat insulating plate is placed, the rotating lever is positioned in the low temperature range regardless of the position of the rotating lever, and the rotating range limiting member moves the rotating lever to the middle/high temperature range. can be prevented from moving to That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A heating cooker according to a fifth aspect of the present invention is the heating cooker according to the first aspect or the fourth aspect, wherein the moving member is vertically movable. In this case, it is preferable that the rotating lever rotates along the horizontal plane. Also, the rotation range limiting member is a rod. Here, it is preferable that the rotation range limiting member intersects with the rotation lever in a state where the opening/closing temperature of the contact is set in a middle/high temperature range or a high temperature range in plan view. In addition, this heating cooker further includes a pivot portion. The pivot supports the proximal end of the rotation range limiting member so that the distal end of the rotation range limiting member can swing vertically. In addition, it is preferable that the shaft supporting portion is arranged at a position on the side where the switching temperature of the contact is low (the position in which the power supply is turned off may also be used). Moreover, it is preferable that the pivotal support has a constant height so that the rotation range limiting member takes a posture along the diagonally downward direction. In this heating cooker, the distal end portion of the rotation range limiting member is fixed in the specific state when the moving member is positioned at the lower end position. The tip of the rotation range limiting member may be biased upward, but when the container to be heated is not placed, the moving member can be moved up and down by the rotation of the rotation lever. Therefore, basically, the urging member can be omitted. In the relationship with the heating cooker according to the fourth aspect, when the rotating lever is in the first rotating range, the rotating range limiting member is fixed in the specific state when the moving member moves to the lower end position. However, when the rotating lever is in the second rotating range, the rotating range limiting member rotates until the rotating range restricting member is fixed in the specific state with the movement of the moving member. Abutting on the moving lever, the rotating lever is moved to the first rotating range.

As described above, in this heating cooker, when the second container to be heated is placed on the heating unit and the moving member is positioned at the upper end position (that is, when the moving member does not move downward), it rotates. The tip of the range limiting member is vertically swingable, and when the first container to be heated is placed on the heating unit and the moving member is positioned at the lower end position (i.e., by the first container to be heated) (when the moving member is pushed down to the lower end position). That is, when the second container to be heated is placed on the heating unit, the rotating lever can be rotated, and when the first container to be heated is placed on the heating unit, the rotating lever can be rotated. Range of motion will be limited. That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A heating cooker according to a sixth aspect of the present invention is the heating cooker according to the first aspect, wherein the rotation range includes a first rotation range and a second rotation range. In this heating cooker, when the rotating lever is in the first rotating range, the rotating range limiting member moves to the specific position without coming into contact with the rotating lever as the moving member moves. is in the second rotation range, while the rotation range limiting member moves to a specific position with the movement of the moving member, the rotation range limiting member comes into contact with the rotation lever and rotates the rotation lever to the first rotation. Move to range of motion. In such a case, after the rotation range limiting member moves to the specific position, the rotation lever cannot be moved to the second rotation range by the rotation range limiting member.

In this heating cooker, when the first heated container is the heat insulating plate, the first rotation range is the low temperature range, and the second rotation range is the middle to high temperature range, when the rotation lever is in the low temperature range When the heat insulating plate is placed on the heating unit, the moving member moves, and along with the movement, the rotation range limiting member moves to a specific position without coming into contact with the rotating lever. On the other hand, when the heat insulating plate is placed on the heating portion while the rotating lever is in the medium-high temperature range, the moving member moves, and the rotating range limiting member moves to a specific position along with the movement. In the meantime, the rotation range limiting member abuts on the rotation lever to move the rotation lever to the first rotation range. Therefore, in this heating cooker, when the heat insulating plate is placed, the rotating lever is positioned in the low temperature range regardless of the position of the rotating lever, and the rotating range limiting member moves the rotating lever to the middle/high temperature range. can be prevented from moving to That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A cooking device according to a seventh aspect of the present invention is the cooking device according to the first aspect or the sixth aspect, wherein the rotating lever is rotatable about the first axis along the first plane. . The moving member is vertically movable. The rotation range limiting member is rotatable about the second axis along a first plane or a second plane parallel to the first plane. The second plane may be above or below the first plane. Moreover, this heating cooker further includes a motion conversion mechanism. The motion conversion mechanism converts vertical motion of the moving member into rotational motion of the rotational range limiting member. Further, in the relationship with the heating cooker according to the sixth aspect, when the rotating lever is in the first rotating range, the rotating range limiting member rotates without coming into contact with the rotating lever as the moving member moves. When the rotating lever is in the second rotation range, the rotation range limiting member moves up to the specific position on the side of the rotating lever as the moving member moves. During the movement, the rotation range limiting member contacts the rotation lever to move the rotation lever to the first rotation range.

In this heating cooker, the rotation range limiting member limits the rotation range of the rotation lever as the moving member moves. That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A cooking device according to an eighth aspect of the present invention is the cooking device according to the seventh aspect, wherein the rotation range limiting member has a limiting wall. The limiting wall has a height or depth that exceeds the first plane. The rotation range limiting member is rotatable about the second axis along the second plane. Here, it is preferable that the rotation axis of the first axis and the second axis are on the same line, but both axes may be positioned close to each other. Also, the second plane may be above or below the first plane. Further, in the relationship with the heating cooker according to the sixth aspect, when the rotating lever is in the first rotating range, the limiting wall of the rotating range limiting member comes into contact with the rotating lever as the moving member moves. However, when the rotating lever is in the second rotating range, the restricting wall of the rotating range limiting member moves along with the movement of the moving member. During the lateral movement to the specific position, the limiting wall of the rotation range limiting member comes into contact with the rotation lever to move the rotation lever to the first rotation range.

In this heating cooker, the limiting wall of the rotation range limiting member limits the rotation range of the rotation lever as the moving member moves. That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A cooking device according to a ninth aspect of the present invention is the cooking device according to the first aspect or the sixth aspect, wherein the moving member is vertically movable. The rotating lever is provided with a protrusion on the upper side. The rotating lever is biased obliquely upward. Moreover, this heating cooker further comprises an arc-shaped step-moving rail portion. The step-movement rail portion is provided above the track of the protrusion when the pivot lever rotates. A plurality of recesses capable of receiving the protrusions are formed in the stepped rail portion. Also, the rotation range limiting member is attached to the tip of the moving member. The rotation range limiting member is located above the rotating lever when the moving member is at the upper end position, and is located to the side of the rotating lever when the moving member is at the lower end position. Further, in the relationship with the heating cooker according to the sixth aspect, when the rotating lever is in the first rotating range, the rotating range limiting member rotates without coming into contact with the rotating lever as the moving member moves. When the rotating lever is in the second rotating range, the rotating range limiting member pushes the rotating lever downward along with the movement of the moving member, and the recess is formed. The protrusion is removed from the urging force to pull the rotating lever back to the first rotating range, and the rotating range limiting member can move to a specific position on the side of the rotating lever.

As described above, in this heating cooker, the rotation range limiting member is attached to the tip of the moving member, and when the moving member is positioned at the upper end position, the rotation range limiting member is positioned above the rotating lever. , the rotation range limiting member is positioned laterally on the rotation track of the rotation lever when the moving member is positioned at the lower end position. That is, in this heating cooker, the rotation range limiting member limits the rotation range of the rotation lever when the moving member is positioned at the lower end position. That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A heating cooker according to a tenth aspect of the present invention is the heating cooker according to the first aspect, wherein the rotation range includes a first rotation range and a second rotation range. In this heating cooker, when the rotating lever is in the second rotating range, the rotating range restricting member moves the rotating lever to the first rotating range as the moving member moves. After the movement is completed, when the rotating lever is moved to the second rotating range, the rotating range restricting member returns the rotating lever to the first rotating range.

As described above, in this heating cooker, when the first heated container is the heat insulating plate, the first rotation range is the low temperature range, and the second rotation range is the middle/high temperature range, the rotation lever is set to the low temperature range. When the heat insulating plate is placed on the heating part when the moving member is at When the rotation lever is moved to the second rotation range after the movement of is completed, the rotation range limiting member returns the rotation lever to the first rotation range. That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

A cooking device according to an eleventh aspect of the present invention is the cooking device according to the first or tenth aspect, wherein the moving member is vertically movable. The rotation range limiting member has a linear claw receiving portion. The claw receiving portion has a plurality of recesses. Moreover, this cooking device further includes a first biasing member, a contact lever, and a push-back mechanism. The first biasing member biases the moving member upward. The abutment lever extends from the base end side of the rotating lever. The push-back mechanism has a guide portion, a claw portion, and a second biasing member. The guide portion linearly guides the rotation range limiting member along the direction in which the plurality of recesses are arranged. The claw portion is provided at the lower portion of the moving member. When the moving member is at the upper end position, the claw portion can be engaged with the concave portion of the claw receiving portion of the rotation range limiting member. will not engage with the concave portion of the pawl receiving portion. The second biasing member biases the rotation range limiting member toward the contact lever. Further, in relation to the heating cooker according to the ninth aspect, when the moving member is at the upper end position and the rotating lever is in the first rotating range, even if the moving member moves downward, the rotating range is limited. The member does not contact the contact lever and the position of the rotating lever does not change, but when the moving member is at the upper end position and the rotating lever is in the second rotating range, the contact lever limits the rotating range. The member is in a state of being moved in a direction opposite to the biasing direction of the biasing member. When the moving member is moved downward, the claw portion is disengaged from the concave portion of the claw receiving portion of the rotation range limiting member. The rotation range limiting member protrudes in the biasing direction by the second biasing member and contacts the contact lever to push the rotation lever back to the first rotation range. Further, when the moving member is pushed down to the lower end position, the claw portion is not engaged with the concave portion of the claw receiving portion of the rotation range limiting member. The contact lever is pushed back by the rotation range limiting member biased by the second biasing member, thereby returning the rotation lever to the first rotation range.

As described above, in this heating cooker, the moving member is urged upward by the first urging member and is movable in the vertical direction. The rotation range limiting member is guided by the guide portion so as to be linearly movable along the direction in which the plurality of recesses are arranged, and is biased toward the contact lever by the second biasing member. In this heating cooker, when the moving member is at the upper end position, the claw portion attached to the moving member can be engaged with the concave portion of the claw receiving portion of the rotation range limiting member. When it moves downward, the claw portion is no longer engaged with the concave portion of the claw receiving portion of the rotation range limiting member. That is, in this heating cooker, when the moving member is at the upper end position, the rotation range limiting member is in a state in which it can move both to the contact lever side and to the opposite side. When the moving member moves downward from this state, the rotation range limiting member is constantly urged toward the contact lever by the second urging member. The rotation range of the moving lever is restricted. That is, in this heating cooker, it is possible to suitably set the temperature using the rotating lever according to the type of the container to be heated that is used.

FIG. 2 is an external perspective view of the grill pan according to the first embodiment of the present invention when the deep pan is installed on the main body. FIG. 2 is a front view of the grill pan according to the first embodiment of the present invention when the deep pan is installed on the main body. 1 is an external perspective view of a heat retaining plate attached to a grill pan according to a first embodiment of the present invention; FIG. 1 is a plan view of a main body of a grill pan according to a first embodiment of the present invention; FIG. FIG. 5 is a cross-sectional view taken along line AA of FIG. 4; FIG. 5 is a cross-sectional view taken along the line A'-A' in FIG. 4; FIG. 5 is a cross-sectional view taken along the line BB of FIG. 4; 6 is an enlarged perspective view of the thermostat of FIG. 5; FIG. 9 is a side view of the thermostat of FIG. 8; FIG. 6 is an enlarged perspective view of the operating mechanism of FIG. 5; FIG. FIG. 4 is a partial cross-sectional view of the grill pan according to the first embodiment of the present invention when a heat insulating plate is installed on the main body; FIG. 4 is a partial cross-sectional view of the grill pan according to the first embodiment of the present invention when the deep pan is installed on the main body; Fig. 4 is a bottom view of a heat insulating plate attached to the grill pan according to the first embodiment of the present invention; FIG. 4 is a bottom view of the grill pan according to the first embodiment of the present invention when a portion of the bottom wall and two legs of the main body guard of the main body are removed. In addition, in this figure, the rotating lever of the operating mechanism is positioned in the middle temperature range. FIG. 4 is a bottom view of the grill pan according to the first embodiment of the present invention when a portion of the bottom wall and two legs of the main body guard of the main body are removed. In addition, in this figure, the rotating lever of the operating mechanism is positioned in the high temperature range. FIG. 4 is a partial front view showing the positional relationship between the rotating lever and the stopper when the heat insulating plate is normally placed on the main body of the grill pan according to the first embodiment of the present invention; FIG. 5 is a partial side view showing the positional relationship between the turning lever and the stopper when the heat insulating plate is normally placed on the main body of the grill pan according to the first embodiment of the present invention; FIG. 5 is a partial front view showing the positional relationship between the rotating lever and the stopper when the heat insulating plate is not normally placed on the main body of the grill pan according to the first embodiment of the present invention; FIG. 5 is a partial side view showing the positional relationship between the rotating lever and the stopper when the heat insulating plate is not normally placed on the main body of the grill pan according to the first embodiment of the present invention; FIG. 11 is a front side partial cross-sectional view showing the positional relationship between a rotating lever and a swing bar when a container other than the heat insulating plate is placed on the main body of the grill pan according to the second embodiment of the present invention. FIG. 11 is a side partial cross-sectional view showing the positional relationship between a rotating lever and a swing bar when a container other than the heat insulating plate is placed on the main body of the grill pan according to the second embodiment of the present invention. FIG. 12 is a front side partial cross-sectional view showing the positional relationship between the rotating lever and the swinging bar when the heat insulating plate is placed on the main body of the grill pan according to the second embodiment of the present invention. FIG. 10 is a side partial cross-sectional view showing the positional relationship between the rotating lever and the swinging bar when the heat insulating plate is placed on the main body of the grill pan according to the second embodiment of the present invention. FIG. 10 is a right side view showing the positional relationship between the rotation lever and the limit lever with bevel gear when the pot is placed on the main body of the grill pan according to the third embodiment of the present invention. Note that the guard body is removed in this figure. FIG. 11 is a left side view showing the positional relationship between the rotating lever and the limit lever with bevel gear when the pot is placed on the main body of the grill pan according to the third embodiment of the present invention. Note that the guard body is removed in this figure. FIG. 11 is a bottom view showing the positional relationship between the rotating lever and the limit lever with bevel gear when the pot is placed on the main body of the grill pan according to the third embodiment of the present invention. Note that the guard body is removed in this figure. FIG. 27 is a sectional view taken along line CC of FIG. 26; FIG. 11 is a right side view showing the positional relationship between the rotation lever and the bevel gear-equipped restriction lever when the heat insulating plate is placed on the main body of the grill pan according to the third embodiment of the present invention. Note that the guard body is removed in this figure. FIG. 11 is a left side view showing the positional relationship between the rotation lever and the bevel gear-equipped restriction lever when the heat insulating plate is placed on the main body of the grill pan according to the third embodiment of the present invention. Note that the guard body is removed in this figure. FIG. 11 is a bottom view showing the positional relationship between the rotation lever and the limit lever with bevel gear when the heat insulating plate is placed on the main body of the grill pan according to the third embodiment of the present invention. Note that the guard body is removed in this figure. FIG. 27 is a cross-sectional view taken along line DD of FIG. 26; FIG. 11 is a bottom view of the grill pan according to the fourth embodiment of the present invention when a portion of the bottom wall and two legs of the main body guard of the main body are removed. In addition, in this figure, the rotating lever of the operating mechanism is positioned in the middle temperature range. FIG. 33 is a partially enlarged view of the vicinity of the temperature setting range limiting mechanism of FIG. 32; FIG. 11 is a perspective view of a temperature setting range limiting mechanism of a main body of a grill pan according to a fourth embodiment of the present invention; FIG. 11 is a cross-sectional view of a temperature setting range limiting mechanism for a main body of a grill pan according to a fourth embodiment of the present invention; In addition, in this figure, a state in which the claw portion is engaged with the claw receiving portion is shown. FIG. 11 is a cross-sectional view of a temperature setting range limiting mechanism for a main body of a grill pan according to a fourth embodiment of the present invention; It should be noted that this drawing shows a state in which the claw portion is detached from the claw receiving portion. FIG. 11 is a bottom view of the grill pan according to the fourth embodiment of the present invention when a portion of the bottom wall and two legs of the main body guard of the main body are removed. In addition, in this figure, the rotating lever is positioned in the high temperature range. It is a bottom view at the time of removing the bottom wall part of the main body guard of the main body in the grill pan which concerns on 5th Embodiment of this invention. In addition, in this figure, the rotating lever of the operating mechanism is positioned in the middle temperature range. It is a front view of the temperature setting range limiting mechanism of the grill pan according to the fifth embodiment of the present invention. FIG. 14 is a bottom view of the grill pan according to the sixth embodiment of the present invention when the bottom wall portion of the main body guard of the main body is removed. In addition, in this figure, the rotating lever of the operating mechanism is positioned in the high temperature range. FIG. 11 is a front view of a link structure of a temperature setting range limiting mechanism for a grill pan according to a sixth embodiment of the present invention; In the figure, the state of the temperature setting range limiting mechanism indicated by the solid line is the state when the fixing pin is at the upper end position, and the state of the temperature setting range limiting mechanism indicated by the broken line is the state when the fixing pin is at the lower end position. is the state when

-First Embodiment-

A grill pan 100 according to an embodiment of the present invention is mainly composed of a main body 200 and a deep pan 410, as shown in FIGS. Although not shown, the deep pot 410 is provided with a lid. In addition, the main body 200 of the grill pan 100 includes a heat insulating plate 420 (see FIG. 3), a corrugated plate with a vegetable zone (not shown), a takoyaki plate (not shown), and a steaming table as replacement containers for the deep pan 410. (not shown) are also attached. That is, on the main body 200, instead of the deep pot 410, a heat insulating plate 420, a corrugated plate with a vegetable zone, a takoyaki plate and a steaming table can also be installed. These constituent members and accessories will be described in detail below.

<Components of the grill pan>
1. Main Body Main body 200, as shown in FIGS. It consists of a cord connection terminal 270 and a power cord (not shown). These components will be described in detail below.

(1) Main Body Guard Main body guard 210 is mainly composed of guard body 211 and terminal housing box 214, as shown in FIGS. These constituent elements are described in detail below.

The guard body 211, as shown in FIGS. 4-6, is mainly formed of an outer cylinder wall portion 211a, a shoulder portion 211b, a bottom wall portion 211d and four legs 211e. The outer cylinder wall portion 211a and the bottom wall portion 211d are integrally molded resin products. Moreover, the shoulder portion 211b is fitted to the inner upper side of the outer cylinder wall portion 211a. The outer cylinder wall portion 211a has a substantially inverted truncated cone shape as shown in FIGS. In addition, a guide rail portion (not shown) is provided at the lower portion of the front side of the outer cylinder wall portion 211a. The role of this guide rail portion will be described later. The bottom wall portion 211d covers the lower opening of the outer cylinder wall portion 211a as shown in FIG. The leg portion 211e extends downward from the lower surface of the bottom wall portion 211d as shown in FIGS.

The terminal storage box 214 is a storage box for the power cord connection terminal 270 and is fastened to the outer cylinder wall portion 211 a of the guard body 211 . That is, the terminal housing box 214 serves to fix the power cord connection terminal 270 to the guard main body 211 .

(2) Hot Plate The hot plate 220 is a generally disc-shaped heat generating element and is arranged above the inner side of the heat shield plate 240 as shown in FIGS. 4 and 5 . An electric heater 221 is embedded in the hot plate 220 as shown in FIG. A pair of terminals (not shown) of the electric heater 221 are arranged on the lower surface of the hot plate 220 . One terminal is connected to the power cord connection terminal 270 via wiring (not shown), and the other terminal is connected to the thermostat 230 via wiring.

(3) Thermostat Thermostat 230, as shown in FIGS. It is composed of an insulating material 234 and a movable contact pressing force adjusting mechanism 235 . In this thermostat 230, as shown in FIGS. 8 and 9, an insulating material 234 is provided between the fixed contact plate 231, the movable contact plate 232, the bimetal plate 233, and the support plate 235a of the movable contact pressure adjusting mechanism 235. are inserted and the members are joined by bolts and nuts 237 . These components will be described in detail below.

(3-1) Fixed Contact Plate The fixed contact plate 231 is a metal plate, and as shown in FIGS. It is joined to plate 233 . Further, as shown in FIG. 9, a contact 231a projecting downward is provided on the free end side portion of the fixed contact plate 231. As shown in FIG.

(3-2) Fixed Contact Terminal The fixed contact terminal 238 is a conductive metal plate, and as shown in FIG. there is That is, the fixed contact terminal 238 is in contact with the fixed contact plate 231 . A terminal connection hole 238 a is formed in the fixed contact terminal 238 . A power cord connection terminal is connected to the terminal connection hole 238a via wiring.

(3-3) Movable Contact Plate As shown in FIGS. 8 and 9, the movable contact plate 232 is formed of a contact 232a, a lower plate portion 232b, an upper plate portion 232c, and a joint portion 232d. It has an approximately U-shape. Note that the movable contact plate 232 is a metal integral molding.

The lower plate portion 232b is joined to the fixed contact plate 231 and the support plate 235a of the movable contact press contact force adjusting mechanism 235 via an insulating material 234 at one side portion in the longitudinal direction. Further, the movable contact plate 232 is connected at the other end in the longitudinal direction to the end of the upper plate portion 232c via a joint portion 232d.

The upper plate portion 232c extends from the joint portion 232d toward the insulating material. As shown in FIG. 9, a contact point 232a projecting upward is provided on the free end side portion of the upper plate portion 232c. The contact 232a is arranged on the upper plate portion 232c so as to face the contact 231a of the fixed contact plate 231. As shown in FIG. In addition, a through hole is formed in the joint portion side portion so as to penetrate in the plate thickness direction. 9, the lower end of the connecting rod 236 is inserted into this through hole.

(3-3) Movable Contact Terminal The movable contact terminal 239 is a metal plate, and is sandwiched between the movable contact plate 232 and the insulating material 234 at the lowest position, as shown in FIG. That is, the movable contact terminal 239 is in contact with the movable contact plate 232 . A terminal connection hole 239 a is formed in the movable contact terminal 239 . The electric heater 221 of the hot plate 220 is connected to the terminal connection hole 239a through wiring.

(3-4) Bimetallic plate The bimetallic plate 233 is a metal plate in which two types of metal plates having different coefficients of thermal expansion are pasted together, and as shown in Figs. is joined to the fixed contact plate 231 via the . A through hole is formed in the free end side portion of the bimetal plate 233 so as to penetrate in the plate thickness direction. 9, the upper end of the connecting rod 236 is inserted into this through hole. When the bimetal plate 233 absorbs heat and the temperature rises, the free end side portion deforms downward. That is, when the temperature of the bimetal plate 233 rises, the bimetal plate 233 pushes down the movable contact plate 232 via the connecting rod 236, separating the contact 232a of the movable contact plate 232 from the contact 231a of the fixed contact plate 231. In other words, at this time, energization of the electric heater 221 of the hot plate 220 is interrupted, and heat generation by the electric heater 221 is stopped. On the other hand, when the bimetal plate 233 emits heat and the temperature drops, the free end portion deforms upward. That is, when the temperature of the bimetal plate 233 drops, the bimetal plate 233 pushes up the movable contact plate 232 via the connecting rod 236 to bring the contact 232 a of the movable contact plate 232 into contact with the contact 231 a of the fixed contact plate 231 . That is, at this time, energization of the electric heater 221 of the hot plate 220 is resumed, and heat generation by the electric heater 221 is resumed.

(3-5) Insulating Material As described above, the insulating material 234 is inserted between the fixed contact plate 231, the movable contact plate 232, the bimetal plate 233, and the support plate 235a of the movable contact pressure adjusting mechanism 235. Insulates between parts.

(3-6) Movable Contact Pressing Force Adjusting Mechanism As shown in FIGS. 8 and 9, the moving contact pressing force adjusting mechanism 235 comprises a support plate 235a, a rotating shaft 235b, a stopper 235c, a swing plate 235d and a swing rod 235e. It is configured.

As shown in FIGS. 8 and 9, the support plate 235a is joined to the movable contact plate 232 via an insulating material 234 at one longitudinal side. A through-hole is formed in the free end side portion of the support plate 235a so as to penetrate in the plate thickness direction. A female screw is formed on the inner wall of this through hole.

As shown in FIGS. 8 and 9, the rotating shaft 235b is a vertically extending bar, and has a male screw (not shown) formed substantially in the center. The rotary shaft 235b can be rotated around the axis and moved vertically in the support plate 235a by screwing the male threaded portion into the female threaded portion of the support plate 235a. When the rotary shaft 235b is rotated clockwise, the rotary shaft 235b moves upward and the pressing force of the movable contact plate 232 against the fixed contact plate 231 is increased. On the other hand, when the rotary shaft 235b is rotated counterclockwise, the rotary shaft 235b moves downward, and the pressing force of the movable contact plate 232 against the fixed contact plate 231 is weakened. The movable contact pressing force adjustment mechanism 235 can set the opening/closing temperature of the contacts by adjusting the pressing force of the movable contact plate 232 against the fixed contact plate 231 in this way.

The stopper 235c extends downward from the end of the support plate 235a on the free end side, and regulates the swing angle of the swing plate 235d.

The swing plate 235d is fixed to the lower end of the rotary shaft 235b, and extends horizontally from the rotary shaft 235b toward the insulating material, as shown in FIGS.

The swing rod 235e is a bar material and extends downward from the portion of the swing plate 235d opposite to the rotating shaft fixed side. The swing rod 235e is inserted through an opening OP1 (see FIG. 10) of a rotating lever 251, which will be described later. When the rocking rod 235e is rocked clockwise around the rotating shaft 235b, the rotating shaft 235b rotates clockwise, and when rocked counterclockwise, the rotating shaft 235b rotates counterclockwise. That is, when the swing rod 235e is swung clockwise about the rotating shaft 235b, the rotating shaft 235b moves upward, and the pressing force of the movable contact plate 232 against the fixed contact plate 231 is strengthened, causing the swing rod 235e to swing counterclockwise. As a result, the rotating shaft 235b moves downward, and the pressing force of the movable contact plate 232 against the fixed contact plate 231 is weakened.

(4) Heat Sensitive Plate The heat sensitive plate 290 is a disk member made of metal with high thermal conductivity, and as shown in FIGS. are arranged as The heat sensitive plate 290 senses the heat generated by the hot plate 220 and transfers it to the thermostat 230 .

(5) Heat Shield Plate The heat shield plate 240 prevents the heat generated by the heat plate 220 from flowing into the electric parts, the main body guard 210, etc. A dish-shaped member provided for efficiently heating the . As shown in FIGS. 4 to 6, 11 and 12, an annular groove Gc is formed in the upper outer edge of the heat shield plate 240. As shown in FIGS. An opening is formed in the bottom wall of the annular groove Gc. 4 to 6, 11 and 12, a detection pin 261 (described later) of a temperature setting range limiting mechanism 260 is inserted through this opening.

(6) Operation Mechanism The operation mechanism 250 is for setting the contact opening/closing temperature of the thermostat 230, and as shown in FIG. It is composed of a part 254 .

As shown in FIG. 10, the rotating lever 251 is a stepped long plate member and is mainly formed of a low stepped portion 251a and a high stepped portion 251b. Here, as shown in FIG. 10, the low stepped portion 251a is designed to be longer than the high stepped portion 251b. As shown in FIG. 10, a knob portion 254 is attached to the distal end portion of the low step portion 251a. In addition, as shown in FIG. 10, a rectangular opening OP1 with rounded corners is formed at the base end side of the low stepped portion 251a, ie, the high stepped portion side. The swing rod 235e of the thermostat 230 is inserted through the opening OP1 (that is, the rotating lever 251 is connected to the swing rod 235e). Therefore, when the rotary lever 251 is swung, the swing rod 235e of the thermostat 230 is also swung accordingly. Therefore, by swinging the rotary lever 251, the user can adjust the pressing force of the movable contact plate 232 against the fixed contact plate 231, thereby setting the opening/closing temperature of the contacts 231a and 232a. can be done. As shown in FIG. 10, a circular opening OP2 is formed in the high step portion 251b. A shaft 252 is inserted through the opening OP2 from below as shown in FIG.

As shown in FIG. 10, the shaft 252 is mainly formed of a small diameter portion 252a and a large diameter portion 252b, and as described above, is inserted through the opening OP2 of the high step portion 251b from below. A small diameter portion 252a of the shaft 252 is attached to a protrusion 223 (see FIG. 5) extending downward from the central portion of the hot plate 220. As shown in FIG. Further, as shown in FIG. 10, a coil spring 253 is arranged on the outer periphery of the large diameter portion 252b to urge the shaft 252 downward.

As described above, the coil spring 253 is arranged on the outer periphery of the large diameter portion 252b of the shaft 252 and biases the shaft 252 downward.

The knob portion 254 is a member that the user can actually touch to rotate the rotating lever 251, and as shown in FIG. It is It should be noted that this knob portion 254 is an integrally molded product of resin. The body portion 254a is a portion exposed to the outside of the guard body 211 as shown in FIG. 5, and is a portion that is directly touched by the user. The joint portion 254b is joined to a tip side portion of the low step portion 251a of the rotating lever 251 with a screw. Further, as shown in FIG. 10, the knob portion 254 is formed with a groove Gv that opens upward. This groove Gv is fitted into the guide rail portion provided on the outer cylindrical wall portion 211a of the body guard 210, as described above. As a result, the knob portion 254 can swing left and right along the guide rail portion.

(7) Temperature Setting Range Limiting Mechanism The temperature setting range limiting mechanism 260 mainly comprises a detection pin 261, a coil spring 262, a support portion 263, an arm portion 264 and a stopper 265, as shown in FIG. The detection pin 261 is an elongated round bar and is supported by a support portion 263 so as to be vertically movable. An arm portion 264 is fixedly attached to the detection pin 261 as shown in FIGS. As described above, the support portion 263 supports the detection pin 261 so as to be vertically movable. Further, this support portion 263 has a seat portion 263a with an opening. A detection pin 261 is inserted through the opening of the seat portion 263a. A coil spring 262 is installed on the seat portion 263a. A portion of the detection pin 261 located below the flat plate portion 264a of the arm portion 264 is inserted through the coil spring 262 as shown in FIG. The coil spring 262 is arranged between the flat plate portion 264a of the arm portion 264 and the seat portion 263a of the support portion 263, and biases the arm portion 264 upward. Since the arm portion 264 is fixedly attached to the detection pin 261 as described above, the coil spring 262 urges the detection pin 261 upward via the arm portion 264 . The arm portion 264 is joined to the detection pin 261 at a flat plate portion 264a as shown in FIG. A stopper 265 is joined to the lower end of the arm portion 264 . Therefore, the stopper 265 is also urged upward by the coil spring 262 . The stopper 265 is fixedly attached to the detection pin 261 via the arm portion 264 . The stopper 265 is positioned above the rotation track of the knob portion 254 when the detection pin 261 is at the upper end position.

As shown in FIG. 7, when a container such as a deep pot 410 or a heat insulating plate 420 is not placed on the main body 200, the detection pin 261 is moved by the urging force of the coil spring 262 as shown in FIGS. As shown in FIG. 12, it protrudes from the opening of the bottom wall of the annular groove Gc of the heat shield plate 240 . However, as shown in FIG. 11, when the heat insulating plate 420 is placed on the main body 200 of the grill pan 100 according to the present embodiment, the detection pin 261 is located on the annular protrusion provided on the back side of the heat insulating plate 420. It is pushed downward by 422 . At this time, the arm portion 264 and the stopper 265 are also pushed downward simultaneously with the detection pin 261 . On the other hand, when the pot 410 is placed on the main body 200 as shown in FIG. 12, the back side of the pot does not come into contact with the detection pin 261 and does not push down the detection pin 261 (see FIG. 12). . Note that the corrugated plate with vegetable zone (not shown) and the takoyaki plate (not shown) do not push down the detection pin 261 when placed on the main body 200 , similarly to the deep pot 410 .

(8) Power Cord Connection Terminal The power cord connection terminal 270 is housed in the terminal housing box 214 as shown in FIG. The power cord connecting terminal 270 is formed so as to be able to receive a magnetic detachable terminal (not shown) of the power cord. When the power cord connection terminal 270 receives the magnet detachable terminal, the power cord connection terminal 270 and the magnet detachable terminal are electrically connected.

(9) Power cord The power cord consists of a power plug, an electric cord and a magnetic detachable terminal. The power plug is connected to an external power source. The electric cord connects the power plug and the magnet detachable terminal. The magnetic detachable terminal can be magnetically connected to the power cord connection terminal 270, and is electrically connected to the power cord connection terminal 270 at the time of connection.

2. Lid Body The lid body is mainly composed of a lid body and a handle. The lid main body is a circular bowl-shaped plate member made of glass, and has a through-hole at the center in a plan view. This through hole is formed to connect the handle with a screw. That is, a screw is inserted through this through hole. The handle has a cylindrical shape. A female thread (not shown) opening downward along the shaft is formed inside the handle. The screw is screwed into this female screw. The handle is attached to the lid body with a connecting member such as a screw through a backing plate 340 and a washer.

3. Deep Pot The deep pot 410 is used selectively with the heat insulating plate 420, the corrugated plate with vegetable zone, and the takoyaki plate, and as shown in FIG. ing. The pan body 411 is a bottomed cylindrical container body. The handles 412 are attached to both sides of the pan body 411 by connecting members 413 such as screws, nuts, and backing plates. Note that the deep pot 410 is not provided with a protrusion corresponding to the annular protrusion 422 of the heat insulating plate 420 (that is, it can be said that it has a non-contact portion with respect to the detection pin 261). The deep pot 410 is detachably placed on the hot plate 220 and heated by the hot plate 220 .

4. Heat Insulation Plate The heat insulation plate 420 is selectively used with the deep pot 410, the corrugated plate with vegetable zone, and the takoyaki plate, and as shown in FIG. consists of The plate body 421 is an elliptical shallow plate. The annular protrusion 422 is provided on the back side of the plate body 421 as shown in FIG. As described above, the annular protrusion 422 serves to push down the detection pin 261 of the temperature setting range limiting mechanism 260 . The heat insulating plate 420 is detachably placed on the hot plate 220 and heated by the hot plate 220 .

5. Corrugated Plate with Vegetable Zone The corrugated plate with vegetable zone is selectively used with the deep pot 410, the heat insulating plate 420, and the takoyaki plate, and is formed of a yakiniku cooking zone and a vegetable cooking zone. The grilled meat cooking zone has a wave-shaped cross section, and the vegetable cooking zone has a flat plate shape. The corrugated plate with vegetable zone is not provided with a protrusion corresponding to the annular protrusion 422 of the heat insulating plate 420 (that is, it can be said that it has a non-contact portion with respect to the detection pin 261). . This corrugated plate with vegetable zone is detachably placed on a hot plate 220 and heated by the hot plate 220 .

6. Takoyaki Plate The takoyaki plate is a plate dedicated to cooking takoyaki with a plurality of hemispherical recesses, and is selectively used with the deep pot 410, the heat insulation plate 420, and the corrugated plate with vegetable zone. The takoyaki plate does not have a protrusion corresponding to the annular protrusion 422 of the heat insulating plate 420 (that is, it can be said to have a non-contact portion with respect to the detection pin 261). This takoyaki plate is detachably placed on a hot plate 220 and heated by the hot plate 220 .

7. Steaming table The steaming table is an accessory that can be used when using a pot and mainly consists of a perforated plate, four legs and a tab. The perforated plate has a disk shape. Also, the perforated plate is formed with a plurality of small openings. This perforated plate is used as a table for placing cooking ingredients. The legs are engaged with the underside of the perforated plate. A pick piece is pivotably attached to the central portion of the surface of the perforated plate and is used to remove the steaming table from the pot 410 .

<Temperature control mechanism of hot plate>
In grill pan 100 according to the present embodiment, temperature control of hot plate 220 is performed by the user operating knob portion 254 of operating mechanism 250 . In addition, in the grill pan 100 according to the present embodiment, when the knob portion 254 is at the leftmost end, the contacts 231a and 232a of the thermostat 230 are opened and the electric heater 221 is not energized. When the user moves the knob 254 to the right (see FIG. 14), the rotating lever 251 is rotated rightward about the shaft 252, and at the same time the swing rod 235e of the thermostat 230 is rotated in the same direction. be moved. Then, the rotating shaft 235b moves upward in the thermostat 230, and as a result, the movable contact plate 232 is pushed up toward the fixed contact plate. At some point, the contact 232a of the movable contact plate 232 comes into contact with the contact 231a of the fixed contact plate 231 (that is, the contacts 231a and 232a are closed), and the electric heater 221 is energized. Become.

As the knob portion 254 is further moved to the right (see FIG. 15), the pressing force of the contact 232a of the movable contact plate 232 against the contact 231a of the fixed contact plate 231 is increased, and as a result, the contacts 231a and 232a are opened. The temperature at which the state is reached rises. On the other hand, when the knob portion 254 is slightly moved to the left, the rotating lever 251 is rotated leftward about the shaft 252, and at the same time the rocking rod 235e of the thermostat 230 is rotated in the same direction. Then, the rotary shaft 235b moves downward in the thermostat 230, and as a result, the movable contact plate 232 is pulled down in the direction opposite to the fixed contact plate side. At this time, the pressing force of the contact 232a of the movable contact plate 232 against the contact 231a of the fixed contact plate 231 is weakened, and as a result, the temperature at which the contacts 231a and 232a are opened decreases.

In addition, in this grill pan 100, when the knob portion 254 is moved from the left end to the right end, the knob portion 254 moves along an arc track.

<Restrictions on the set temperature range when the heat insulating plate is attached>
In the grill pan 100 according to the present embodiment, when the heat insulating plate 420 is normally placed on the main body 200, the temperature setting range limiting mechanism 260 operates so that the operation area of the rotating lever 251 is limited to the low temperature area. Limited. Here, the state in which the heat insulating plate 420 is normally placed on the main body 200 means that the annular protrusion 422 of the heat insulating plate 420 is in the annular groove Gc of the heat shield plate 240 of the main body 200. It means the state of being completely stuck.

The operation of the temperature setting range limiting mechanism 260 for setting temperature range limits when the heat insulating plate is attached will be described in detail below.

Before the heat insulating plate 420 is placed on the main body 200, the biasing force of the coil spring 262 causes the detection pin 261 to protrude from the opening of the bottom wall of the annular groove Gc of the heat insulating plate 240 (FIGS. 4 to 4). 7, see FIGS. 11 and 12). When the heat insulating plate 420 is placed on the main body 200 , the annular projection 422 of the heat insulating plate 420 comes into contact with the upper end of the detection pin 261 . At this time, if the rotating lever 251 of the main body 200 is positioned in the low temperature range, the detection pin 261 is pushed downward by the weight of the heat insulating plate 420, and the stopper 265 moves downward accordingly. The stopper 265 is positioned to the side of the knob portion 254 (see FIGS. 16 and 17). When the stopper 265 is in this state, the stopper 265 prohibits the movement of the rotating lever 251 to the intermediate/high temperature range. On the other hand, when the rotating lever 251 of the main body 200 is positioned in the middle/high temperature range, the stopper 265 is placed on the knob portion 254 as shown in FIGS. It does not move, resulting in the insulated plate 420 remaining tilted as shown in FIG. When the heat insulating plate 420 is in this state, the user removes the heat insulating plate 420 from the main body 200, moves the rotating lever 251 to the low temperature range, and then places the heat insulating plate 420 on the main body 200 again. Then, the heat insulating plate 420 is normally placed on the main body 200 as described above.

<Characteristics of the grill pan according to the first embodiment of the present invention>
(1)
In the grill pan 100 according to the first embodiment of the present invention, only when the heat insulating plate 420 is placed on the main body 200, the temperature setting range limiting mechanism 260 operates to prevent the rotation lever 251 from moving to the middle/high temperature range. It is forbidden. Therefore, in this grill pan 100, it is possible to prevent the food to be kept warm from burning or rapidly deteriorating when the heat retaining plate 420 is used.

(2)
In the grill pan 100 according to the first embodiment of the present invention, when the heat insulating plate 420 is placed on the main body 200 while the turning lever 251 of the main body 200 is positioned in the middle/high temperature range, the stopper 265 is turned to the knob. It is put on the portion 254 and the detection pin 261 moves only slightly, and as a result, the heat insulating plate 420 remains tilted. For this reason, the user can notice that the rotating lever 251 is positioned in the middle/high temperature range, and by extension, the user is instructed to move the rotating lever 251 to the low temperature range before pressing the heat insulating plate. 420 can be prompted to be placed back on body 200 .

<Modification>
(A)
In the grill pan 100 according to the previous embodiment, the opening for inserting the detection pin was formed in the bottom wall of the annular groove Gc of the heat shield plate 240, but the heat shield plate 240 was formed without forming the annular groove Gc. may be aligned with the surface position of the hot plate 220, and an opening for inserting the detection pin may be formed in the outer edge. In such a case, the annular protrusion 422 of the heat insulating plate 420 is removed, and the back side of the heat insulating plate 420 is shaped to follow the shape of the outer edge of the heat insulating plate 240 . On the other hand, on the back side of the deep pot 410, the corrugated plate with vegetable zone, and the takoyaki plate, an annular groove opening downward is provided so as not to come into contact with the detection pin 261 when placed.

(B)
In the grill pan 100 according to the previous embodiment, when the heat insulating plate 420 was normally placed on the main body 200, the operation area of the rotating lever 251 was limited to the low temperature range. 251 may be restricted to mid-low temperature ranges. In such a case, it is only necessary to adjust the installation position of the stopper 265 in the temperature setting range limiting mechanism 260 .

(C)
In the grill pan 100 according to the previous embodiment, the electric heater-embedded hot plate 220 is employed, but this may be replaced by only the electric heater.

(D)
In the grill pan 100 according to the previous embodiment, the thermal plate 290 is arranged so as to contact both the lower surface of the hot plate 220 and the upper surface of the thermostat 230. It doesn't matter if they are placed.

(E)
In the previous embodiment, an example in which the present invention is applied to a grill pan was shown, but the present invention may also be applied to other heat cookers such as hot plates and fryers.

-Second embodiment-
The grill pan according to the second embodiment of the present invention is the same as the grill pan 100 according to the first embodiment except that the structure of the temperature setting range limiting mechanism is different. For this reason, in the description of the grill pan according to the present embodiment, the same members and parts as those of the grill pan 100 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

<Structure of temperature setting range limiting mechanism>
The temperature setting range limiting mechanism 560 of the main body 500 of the grill pan according to the present embodiment, as shown in FIG. 563. The fixing pin 561 is an elongated round bar and is supported by a support portion so as to be vertically movable. The fixing pin 561 is positioned above the tip of the swing rod 563 as shown in FIGS. Here, the fixing pin 561 is not biased upward by a biasing member such as a coil spring. As described above, the supporting portion supports the fixing pin 561 so as to be vertically movable. As shown in FIGS. 20 and 21, the shaft support 562 is located further left than the left end of the low temperature region of the rotating lever 251, and supports the swing rod 563 at its upper end. That is, the swing rod 563 can swing vertically around the shaft support portion 562 . The swing rod 563 is pivotally supported on the base end side by the pivot portion 562 as described above. The rocking rod 563 has a length that reaches the knob portion 254 even when the rotating lever 251 is at the highest temperature setting position.

In this temperature setting range limiting mechanism 560, when a container such as the pot 410 or the heat insulating plate 420 is not placed on the main body 500, the fixing pin 561 is vertically movable. Therefore, when the rotating lever 251 moves in the middle/high temperature range, the knob portion 254 moves while pushing up the rocking rod 563 . At this time, the fixing pin 561 is lifted by the swing rod 563 and protrudes from the opening of the bottom wall of the annular groove Gc of the heat shield plate 240 . On the other hand, when the rotating lever 251 is moved from the middle/high temperature range to the low temperature range, the tip of the swing rod 563 falls downward.

<Restrictions on the set temperature range when the heat insulating plate is attached>
In the grill pan according to the present embodiment, when the heat insulating plate 420 is normally placed on the main body 500, the fixing pin 561 presses the swing bar 563 downward to fix the swing bar 563. As a result, the operation area of the rotating lever 251 is limited to the low temperature area. Here, the state in which the heat insulating plate 420 is normally placed on the main body 500 means that the annular protrusion 422 of the heat insulating plate 420 is in the annular groove Gc of the heat shield plate 240 of the main body 200. It means the state of being completely stuck.

Below, the function of the temperature setting range limiting mechanism 260 will be described in detail regarding the setting temperature range limit when the heat insulating plate is attached.

Before the heat insulating plate 420 is placed on the main body 500, the fixing pin 561 is in a vertically movable state. When the heat insulating plate 420 is placed on the main body 500, the annular protrusion 422 of the heat insulating plate 420 comes into contact with the upper end of the fixing pin 561 and prohibits the fixing pin 561 from rising. At this time, if the rotating lever 251 of the main body 500 is positioned in the low temperature range, the tip of the swing rod 563 is pressed downward by the fixing pin 561, and the swing rod 563 is fixed. (see FIGS. 22 and 23). When the rocking rod 563 is in this state, the rocking rod 563 prohibits the movement of the rotating lever 251 to the intermediate/high temperature range. On the other hand, when the rotating lever 251 of the main body 500 is positioned in the middle/high temperature range, the annular projection 422 of the heat insulating plate 420 is pushed into the annular groove of the heat insulating plate 240 as shown in FIGS. Depress the fixing pin 561 protruding from the opening in the bottom wall of Gc. At this time, the pivot lever 251 is moved to the low temperature range while the pivot rod 563 pivots downward. Then, when the rotating lever 251 moves to the low temperature range, the rocking rod 563 is fixed by the fixing pin 561, and the movement of the rotating lever 251 to the intermediate and high temperature range is prohibited.

<Characteristics of the grill pan according to the second embodiment of the present invention>
(1)
In the grill pan according to the second embodiment of the present invention, only when the heat insulating plate 420 is placed on the main body 500, the temperature setting range limiting mechanism 560 functions to prohibit the movement of the rotating lever 251 to the medium/high temperature range. be done. Therefore, in this grill pan, it is possible to prevent the cooked food to be kept warm from burning or rapidly deteriorating when the heat retaining plate 420 is used.

(2)
In the grill pan according to the second embodiment of the present invention, when the heat insulating plate 420 is placed on the main body 500 when the rotating lever 251 of the main body 500 is positioned in the middle/high temperature range, the swing bar 563 is moved. While rotating downward, it abuts on the knob portion 254 to move the rotating lever 251 to the low temperature range. Therefore, when placing the heat insulating plate 420 on the main body 500 , the user can limit the operation range of the rotating lever 251 to the low temperature range without worrying about the position of the knob portion 254 .

<Modification>
(A)
Although the fixing pin 561 was not urged upward in the grill pan according to the previous embodiment, the fixing pin 561 may be urged upward in the same manner as the detection pin 261 according to the first embodiment. I don't mind. In this case, the movement of the rotating lever 251 can be made smoother in the medium and high temperature range.

(B)
In the grill pan according to the previous embodiment, the rocking rod 563 was a straight rod-shaped member, but the rocking rod 563 may have a crank shape. In this case, it is preferable that the bent portion is positioned at the boundary between the low temperature range and the medium/high temperature range.

(C)
Although not specifically mentioned in the previous embodiment, modifications (A) to (E) of the first embodiment may be applied to the grill pan of the second embodiment.

-Third Embodiment-
The grill pan according to the third embodiment of the present invention is the same as the grill pan 100 according to the first embodiment except that the structure of the temperature setting range limiting mechanism is different. For this reason, in the description of the grill pan according to the present embodiment, the same members and parts as those of the grill pan 100 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

<Structure of temperature setting range limiting mechanism>
As shown in FIGS. 24 to 27, the temperature setting range limiting mechanism 660 of the main body of the grill pan according to the present embodiment mainly includes a fixing pin 661, a support portion 662, a connecting plate 663, a fulcrum support wall 664, a fulcrum It is composed of a pin PN, a bevel gear 665, a gear shaft support wall 666 and a limit lever 667 with a bevel gear. The fixed pin 661 is an elongated round bar and is supported by a support portion 662 so as to be vertically movable. A horizontal pin 661a is provided at the lower end of the fixing pin 661 as shown in FIG. The horizontal pin 661a extends from the outer peripheral surface of the lower end portion of the fixing pin 661 in a direction perpendicular to the axis of the fixing pin 661 . The horizontal pin 661a is fitted in an end-side laterally elongated hole Be formed at one end of the connecting plate 663. As shown in FIG. Here, the fixing pin 661 is not biased upward by a biasing member such as a coil spring. As described above, the support portion 662 supports the fixing pin 661 so as to be vertically movable. The connecting plate 663 is a long plate-like member as shown in FIGS. One end of the connecting plate 663 is formed with an end side oblong hole Be, the other end is formed with an end side round hole Br, and the central part is formed with a central oblong hole Bc. formed. As described above, the horizontal pin 661a of the fixing pin 661 is fitted in the end side oblong hole Be. A connecting pin 665b formed on the back side of the tooth portion of the bevel gear 665 is fitted in the end-side round hole Br. A fulcrum pin PN is fitted in the central laterally elongated hole Bc. The fulcrum support wall 664 extends downward from the lower surface of the bottom wall portion of the heat shield plate 240 as shown in FIGS. A fulcrum pin PN is fixedly attached to the fulcrum support wall 664 . As described above, the fulcrum pin PN is fixedly attached to the fulcrum support wall 664 and is fitted into the central laterally elongated hole Bc of the connecting plate 663 . The bevel gear 665 is rotatably supported by the gear shaft support wall 666 in such a state that the rotating shaft extends in the horizontal direction and the teeth mesh with the teeth of the bevel gear 667b of the limit lever 667 with bevel gear. . Further, as described above, the connecting pin 665b is formed on the back side of the tooth portion of the bevel gear 665, and the connecting pin 665b is fitted into the end-side circular hole Br of the connecting plate 663. 24, 25 and 27, the gear shaft support wall 666 extends downward from the lower surface of the bottom wall portion of the heat shield plate 240, and as described above, allows the bevel gear 665 to rotate freely. pivoted. As shown in FIGS. 24, 25 and 27, the limiting lever 667 with bevel gear is mainly formed of a cylindrical portion 667a, a bevel gear portion 667b, a lever portion 667c and a limiting wall portion 667d. 24, 25 and 27, the limiting lever 667 with bevel gear is arranged directly under the rotating lever 251, and is rotatable together with the rotating lever 251 by a shaft 252. supported. That is, the bevel geared restriction lever 667 can rotate along a plane parallel to the track surface (plane) of the rotating lever 251 . The cylindrical portion 667a has an axis that coincides with the axis of the rotating lever 251, and is rotatably supported by the shaft 252. As shown in FIG. The bevel gear portion 667b has teeth that mesh with the teeth of the bevel gear 665 . The lever portion 667c is a substantially triangular plate-like portion extending radially from the outer periphery of the bevel gear portion 667b. The limiting wall portion 667d is a substantially rectangular wall portion that extends upward from the side surface of the lever portion 667c. Also, this restriction wall portion 667 d is located at a position facing the rotating lever 251 . The limiting wall portion 667d is positioned at the maximum temperature setting position when the fixing pin 661 is positioned at the upper end position, and is positioned at the boundary between the low temperature region and the medium temperature region when the fixing pin 661 is positioned at the lower end position. do.

In this temperature setting range limiting mechanism 660, the fixing pin 561 is vertically movable when no container such as the pot 410 or the heat insulating plate 420 is placed on the main body. When the fixing pin 661 is pushed down from the upper end position to the lower end position, the end of the connecting plate 663 on the side of the end-side laterally elongated hole Be descends, and at the same time, the end of the connecting plate 663 on the side of the end-side round hole Br rises. . The bevel gear 665 rotates as the end on the side of the end-side round hole Br rises, and the rotation of the bevel gear 665 causes the bevel gear-equipped limit lever 667 to rotate. At this time, the limiting wall portion 667d of the limiting lever 667 with bevel gear moves from the maximum temperature setting position to the boundary between the low temperature range and the medium temperature range. By the way, when the container such as the deep pot 410 or the heat insulating plate 420 is not placed on the main body and the fixing pin 661 is positioned at the lower end position, if the rotating lever 251 is moved to the maximum temperature setting position, , the rotating lever 251 rotates the limiting lever 667 with bevel gear in the direction opposite to the above. As the limit lever 667 with bevel gear rotates in the opposite direction, the bevel gear 665 rotates in the opposite direction. at the same time that the end of the connecting plate 663 on the side of the end side oblong hole Be rises. As the end of the connecting plate 663 on the side of the end side oblong hole Be rises, the fixing pin 661 rises to the upper end position and protrudes from the opening of the bottom wall of the annular groove Gc of the heat shield plate 240 . When the fixing pin 661 is at the upper end position as described above, the rotating lever 251 moves without coming into contact with the limiting wall portion 667d until reaching the maximum temperature setting position.

<Restrictions on the set temperature range when the heat insulating plate is attached>
In the grill pan according to the present embodiment, when the heat insulating plate 420 is normally placed on the main body, the fixing pin 661 descends to fix the limit lever 667 with bevel gear. The operating area of the lever 251 is limited to the low temperature area. Here, the state in which "the heat insulating plate 420 is normally placed on the main body" means that the annular protrusion 422 of the heat insulating plate 420 is completely in the annular groove Gc of the heat shield plate 240 of the main body. A state of being stuck.

The function of the temperature setting range limiting mechanism 660 will be described below in detail regarding the setting temperature range limit when the heat insulating plate is attached.

Before the heat insulating plate 420 is placed on the main body, the fixing pin 661 is in a vertically movable state. When the heat insulating plate 420 is placed on the main body, the annular protrusion 422 of the heat insulating plate 420 comes into contact with the upper end of the fixing pin 661 and prohibits the fixing pin 661 from rising. At this time, if the rotating lever 251 of the main body is positioned in the low temperature range, the limiting lever 667 with bevel gear is fixed, and the limiting wall portion 667d is positioned at the boundary between the low temperature range and the medium temperature range. become. When the limit lever 667 with bevel gear is in this state, the limit wall portion 667d prohibits the movement of the rotating lever 251 to the intermediate/high temperature range. On the other hand, when the rotating lever 251 of the main body is positioned in the middle/high temperature range, the annular protrusion 422 of the heat insulating plate 420 is a fixing pin protruding from the opening of the bottom wall of the annular groove Gc of the heat shield plate 240. Push 661 down. At this time, while the restriction lever 667 with the bevel gear rotates toward the low temperature range, the restriction wall portion 667d moves the rotation lever 251 toward the low temperature range. When the rotating lever 251 moves to the low temperature range, the restriction lever 667 with the bevel gear is fixed, and the movement of the rotating lever 251 to the middle/high temperature range is prohibited.

<Characteristics of the grill pan according to the third embodiment of the present invention>
(1)
In the grill pan according to the third embodiment of the present invention, only when the heat insulating plate 420 is placed on the main body, the temperature setting range limiting mechanism 660 is actuated to prohibit the movement of the rotating lever 251 to the intermediate/high temperature range. be. Therefore, in this grill pan, it is possible to prevent the cooked food to be kept warm from burning or rapidly deteriorating when the heat retaining plate 420 is used.

(2)
In the grill pan according to the third embodiment of the present invention, when the heat retaining plate 420 is placed on the main body while the rotation lever 251 of the main body is positioned in the middle/high temperature range, the restriction lever 667 with bevel gear is moved. The rotation lever 251 is moved to the low temperature range by the restriction wall portion 667d while rotating toward the low temperature range. Therefore, the user can limit the operation range of the rotating lever 251 to the low temperature range without worrying about the position of the knob portion 254 when placing the heat insulating plate 420 on the main body.

<Modification>
(A)
Although the fixing pin 661 was not urged upward in the grill pan according to the previous embodiment, the fixing pin 661 may be urged upward in the same manner as the detection pin 261 according to the first embodiment. I don't mind. In this case, the movement of the rotating lever 251 can be made smoother in the medium and high temperature range.

(B)
In the grill pan according to the previous embodiment, the restricting lever 667 with bevel gear is disposed directly below the rotating lever 251, and the restricting wall portion 667d extends upward from the side surface of the lever portion 667c. However, the limiting lever 667 with bevel teeth may be arranged above the rotating lever 251, and the limiting wall portion 667d may extend downward from the side surface of the lever portion 667c.

(C)
Although not specifically mentioned in the previous embodiment, modifications (A) to (E) of the first embodiment may be applied to the grill pan of the third embodiment.

-Fourth Embodiment-
The grill pan according to the fourth embodiment of the present invention is the same except that a) the structure of the temperature setting range limiting mechanism is different and b) the contact lever extends from the base end side of the rotating lever 251. It is the same as the grill pan 100 according to one embodiment. For this reason, in the description of the grill pan according to the present embodiment, the same members and parts as those of the grill pan 100 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

<Structure of temperature setting range limiting mechanism>
As shown in FIGS. 32 to 37, the temperature setting range limiting mechanism 760 of the main body of the grill pan according to the present embodiment mainly includes a detection pin 761, a support portion 762, a claw portion 763, a piston 764, an upper guide It is composed of a portion 765A, a lower guide portion 765B, a first coil spring 766, a second coil spring 767, and a third coil spring 768. As shown in FIGS. 35 and 36, the detection pin 761 is an elongated round bar and is supported by a support portion 762 and a protrusion PR extending upward from the bottom wall portion 211d of the guard body 211. It is supported so as to be vertically movable and axially rotatable. A claw portion 763 is fixedly attached to the lower end portion of the detection pin 761 as shown in FIGS. The claw portion 763 extends from the outer peripheral surface of the lower end portion of the detection pin 761 in a direction orthogonal to the axis of the detection pin 761 as shown in FIGS. 35 and 36 . 35, when the detection pin 761 is at the upper end position, the claw portion 763 is engaged with a claw receiving portion 764b provided on the piston 764 (a state facing the claw receiving portion 764b). ). On the other hand, as shown in FIG. 36, the claw portion 763 is disengaged from the claw receiving portion 764b of the piston 764 when the detection pin 761 is moved downward from the upper end position. As shown in FIGS. 32 to 36, the piston 764 is sandwiched between the upper guide portion 765A and the lower guide portion 765B so as to be retractable along the front-rear direction behind the upper guide portion 765A and the lower guide portion 765B. It is Further, as shown in FIGS. 32 and 35, the piston 764 is formed with a pawl receiving portion 764b. As shown in FIG. 32, in the claw receiving portion 764b, a plurality of concave portions for receiving the claw portions 763 are linearly arranged along the front-rear direction. The upper guide portion 765A is a guide portion disposed above the piston 764, and supports the piston 764 so that the piston 764 can move in the longitudinal direction as described above. The lower guide portion 765B is a monorail-shaped guide portion disposed below the piston 764, and supports the piston 764 so that the piston 764 can move in the longitudinal direction as described above. . As shown in FIG. 35, the first coil spring 766 is arranged between the claw portion 763 and the bottom wall portion 211d of the guard body 211 so as to surround the protrusion PR. 761 is biased upward. The second coil spring 767 is bridged between the support portion 762 and the claw portion 763 as shown in FIGS. 32 to 34, and biases the claw portion 763 obliquely rearward to the left. As shown in FIG. 32, the third coil spring 768 is disposed between the coil spring support portion SS located on the front side of the upper guide portion 765A and the lower guide portion 765B and the front wall of the piston 764. 764 is biased rearward.

In this temperature setting range limiting mechanism 760 , when a container such as the pot 410 or the heat insulating plate 420 is not placed on the main body, the detecting pin 761 moves the heat shield plate 240 by the biasing force of the first coil spring 766 . It protrudes from the opening of the bottom wall of the annular groove Gc (see FIG. 35). In this state, the claw portion 763 can be locked to the claw receiving portion 764b of the piston 764 as described above. Here, when the rotating lever 251 is moved to the high temperature region side, the contact lever 790 fixedly attached to the rotating lever 251 contacts the rear end of the piston 764, and the rotating lever 251 is further moved from there. is moved toward the high temperature region, the piston 764 is pushed forward by the contact lever 790 (see FIG. 37). At this time, the piston 760 moves against the biasing force of the third coil spring 768 . At this time, the pawl portion 763 is engaged with the pawl receiving portion 764b of the piston 764 . Therefore, even if the rotating lever 251 is moved to the low temperature range at some point, the piston 764 is maintained in a state of being pushed toward the upper guide portion. When the detection pin 761 is pushed downward while the rotating lever 251 is in the high temperature range, the claw portion 763 is disengaged from the claw receiving portion 764b of the piston 764, and the piston 764 is moved by the third coil spring. 768 pushes it rearward, contacts the contact lever 790, and moves the rotating lever 251 to the low temperature region.

<Restrictions on the set temperature range when the heat insulating plate is attached>
In the grill pan according to the present embodiment, when the heat insulating plate 420 is normally placed on the main body 700, the detection pin 761 descends and the claw portion 763 is engaged with the claw receiving portion 764b of the piston 764. It becomes a state of nothing. As a result, even if the rotating lever 251 is moved to the middle/high temperature range, the piston 760 that is biased pushes the rotating lever 251 back to the low temperature range. Here, the state in which "the heat insulating plate 420 is normally placed on the main body" means that the annular protrusion 422 of the heat insulating plate 420 is completely in the annular groove Gc of the heat shield plate 240 of the main body. A state of being stuck.

Below, the function of the temperature setting range limiting mechanism 760 will be described in detail regarding the setting temperature range limit when the heat insulating plate is attached.

Before the heat insulating plate 420 is placed on the main body 700 , the detection pin 761 protrudes from the opening of the bottom wall of the annular groove Gc of the heat shield plate 240 by the biasing force of the first coil spring 766 . (See FIG. 35). When the heat insulating plate 420 is placed on the main body 700, the annular protrusion 422 of the heat insulating plate 420 contacts the upper end of the detection pin 761 and pushes the detection pin 761 downward. As a result, the claw portion 763 does not engage with the claw receiving portion 764b of the piston 764 (see FIG. 36). Note that if the claw portion 763 is engaged with the claw receiving portion 764b of the piston 764 before the claw portion 763 is in this state, the engagement of the claw portion 763 with respect to the claw receiving portion 764b is released. A coil spring 768 pushes the piston 764 backward. At that time, if the rotating lever 251 is positioned in the middle/high temperature range, the rear end of the piston 764 contacts the contact lever 790 to move the rotating lever 251 to the low temperature range. After that, even if the rotating lever 251 is moved to the middle/high temperature range, the piston 764 urged by the third coil spring 768 pushes the rotating lever 251 back to the low temperature range. On the other hand, if the claw portion 763 is not engaged with the claw receiving portion 764b of the piston 764 before the claw portion 763 is in the above-described state, even if the rotating lever 251 is moved to the intermediate/high temperature region, the third A piston 764 biased by a coil spring 768 pushes the rotating lever 251 back to the low temperature range.

<Characteristics of the grill pan according to the fourth embodiment of the present invention>
(1)
In the grill pan according to the fourth embodiment of the present invention, the temperature setting range limiting mechanism 760 operates only when the heat insulating plate 420 is placed on the main body 700, and even if the rotating lever 251 is moved to the middle/high temperature range, , the piston 764 biased by the third coil spring 768 pushes the rotating lever 251 back to the low temperature range. Therefore, in this grill pan, it is possible to prevent the cooked food to be kept warm from burning or rapidly deteriorating when the heat retaining plate 420 is used.

(2)
In the grill pan according to the fourth embodiment of the present invention, when the rotating lever 251 of the main body 700 is positioned in the middle/high temperature range, the heat insulating plate 420 is placed on the main body 700 and the rear end of the piston 764 is pushed. contacts the contact lever 790 to move the rotating lever 251 to the low temperature region. Therefore, the user can limit the operation area of the rotating lever 251 to the low temperature range without worrying about the position of the knob portion 254 when placing the heat insulating plate 420 on the main body 700 .

<Modification>
Although not specifically mentioned in the previous embodiment, modifications (A) to (E) of the first embodiment may be applied to the grill pan of the fourth embodiment.

- Fifth embodiment -
The grill pan according to the fifth embodiment of the present invention has a) a different structure of the temperature setting range limiting mechanism, b) a locking piece provided on the upper side of the knob portion 254, and c) the knob portion. It is the same as the grill pot 100 according to the first embodiment except that 254 is biased toward the low temperature setting side by the second coil spring. For this reason, in the description of the grill pan according to the present embodiment, the same members and parts as those of the grill pan 100 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

<Structure of temperature setting range limiting mechanism>
As shown in FIGS. 38 and 39, the temperature setting range limiting mechanism 860 of the main body of the grill pan according to the present embodiment mainly includes a detection pin 261, a coil spring 262, a support portion 263, an arm portion 264, a stopper 265, and a , an upper locking wall 865 and a coil spring 866 for urging the knob portion. Since the detection pin, coil spring 262, support portion 263, arm portion 264, and stopper 265 are the same as those according to the first embodiment, description thereof will be omitted here. The upper locking wall 865 is an arc-shaped wall in a plan view, and is arranged above the knob portion 254 as shown in FIGS. 38 and 39 . Further, as shown in FIG. 39, a claw receiving portion 865a is formed on the lower side of the upper engaging wall 865. As shown in FIG. 39, the claw receiving portion 865a is provided with a plurality of concave portions for receiving the claw portion 254c projecting upward from the knob portion 254. As shown in FIG. The knob portion biasing coil spring 866 biases the knob portion 254 toward the low temperature range side and upward (that is, obliquely upward) as shown in FIGS. 38 and 39 .

In this temperature setting range limiting mechanism 860 , when a container such as the deep pot 410 or the heat insulating plate 420 is not placed on the main body, the detection pin 761 moves the heat shield plate 240 by the biasing force of the first coil spring 766 . It protrudes from the opening of the bottom wall of the annular groove Gc. However, when the heat insulating plate 420 is placed on the main body of the grill pan according to the present embodiment, the detection pin 261 is pushed downward by the annular protrusion 422 provided on the back side of the heat insulating plate 420 . At this time, the arm portion 264 and the stopper 265 are also pushed downward simultaneously with the detection pin 261 . On the other hand, when the pot 410 is placed on the main body, the back side of the pot does not come into contact with the detection pin 261 and does not push down the detection pin 261 . It should be noted that the corrugated plate with vegetable zone (not shown) and the takoyaki plate (not shown), like the deep pan 410, do not push down the detection pin 261 when placed on the main body.

<Restrictions on the set temperature range when the heat insulating plate is attached>
In the grill pan according to the present embodiment, when the heat insulating plate 420 is normally placed on the main body, the temperature setting range limiting mechanism 860 operates to limit the operating range of the rotating lever 251 to only the low temperature range. be. Here, the state in which "the heat insulating plate 420 is normally placed on the main body" means that the annular protrusion 422 of the heat insulating plate 420 is completely in the annular groove Gc of the heat shield plate 240 of the main body. A state of being stuck.

The operation of the temperature setting range limiting mechanism 860 for setting temperature range limits when the heat insulating plate is attached will be described in detail below.

Before the heat insulating plate 420 is placed on the main body, the biasing force of the coil spring 262 causes the detection pin 261 to protrude from the opening of the bottom wall of the annular groove Gc of the heat insulating plate 240 . When the heat insulating plate 420 is placed on the main body, the annular protrusion 422 of the heat insulating plate 420 contacts the upper end of the detection pin 261 . At this time, if the rotation lever 251 of the main body is positioned in the low temperature range, the detection pin 261 is pushed downward by the weight of the heat insulating plate 420, and the stopper 265 is also moved downward in conjunction with this. 265 is positioned to the side of the knob portion 254 . When the stopper 265 is in this state, the stopper 265 prohibits the movement of the rotating lever 251 to the intermediate/high temperature range. On the other hand, when the rotating lever 251 of the main body is positioned in the middle/high temperature range, the stopper 265 pushes the knob portion 254 downward. At this time, the claw portion 254c is disengaged from the claw receiving portion 865a, and the knob portion 254, i.e., the turning lever 251, is moved to the minimum temperature setting position (which may be the power OFF position) by the knob portion biasing coil spring 866. It is pulled back, and after that, the stopper 265 is positioned on the side of the knob portion 254 . When the stopper 265 is in this state, the stopper 265 prohibits the movement of the rotating lever 251 to the intermediate/high temperature range.

<Characteristics of the grill pan according to the fifth embodiment of the present invention>
(1)
In the grill pan according to the fifth embodiment of the present invention, only when the heat insulating plate 420 is placed on the main body, the temperature setting range limiting mechanism 860 operates to prohibit the movement of the rotating lever 251 to the intermediate/high temperature range. be. Therefore, in this grill pan, it is possible to prevent the cooked food to be kept warm from burning or rapidly deteriorating when the heat retaining plate 420 is used.

(2)
In the grill pan according to the fifth embodiment of the present invention, when the heat insulating plate 420 is placed on the main body while the rotating lever 251 of the main body is positioned in the middle/high temperature range, the stopper 265 pushes the knob portion 254. push down. At this time, the claw portion 254c is unlocked from the claw receiving portion 865a, and the knob portion 254, that is, the rotating lever 251 is moved to the lowest temperature setting position (or the energization off position) by the knob portion biasing coil spring 866. ), and after that, the stopper 265 is positioned on the side of the knob portion 254 . Therefore, when placing the heat insulating plate 420 on the main body 500 , the user can limit the operation range of the rotating lever 251 to the low temperature range without worrying about the position of the knob portion 254 .

<Modification>
Although not specifically mentioned in the previous embodiment, modifications (A) to (E) of the first embodiment may be applied to the grill pan of the fifth embodiment.

-Sixth Embodiment-
The grill pan according to the sixth embodiment of the present invention is the same except that a) the structure of the temperature setting range limiting mechanism is different, and b) the contact lever extends from the base end side of the rotating lever 251. It is the same as the grill pan 100 according to one embodiment. For this reason, in the description of the grill pan according to the present embodiment, the same members and parts as those of the grill pan 100 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

<Structure of temperature setting range limiting mechanism>
40 and 41, the temperature setting range limiting mechanism 960 of the main body 900 of the grill pan according to the present embodiment mainly consists of a fixing pin 961, a support portion 962, a connecting rod 963 and a limiting lever 964. It is configured. In addition, in the grill pan according to the present embodiment, these constituent members 961, 962, 963, and 964 constitute a link mechanism. As shown in FIGS. 40 and 41, the fixed pin 961 is an elongated round bar and is supported by a support portion 962 so as to be vertically movable. A connecting rod 963 is attached to the lower end of the fixing pin 961 as shown in FIG. Here, the fixing pin 961 is not biased upward by a biasing member such as a coil spring. A connecting rod 963 is attached to the lower end of the fixing pin 961 and the rear end of the limit lever 964 as shown in FIGS. The limit lever 964 is a long plate having a length necessary to push back the contact lever 990 from the high temperature range to the low temperature range. The limit lever 964 is rotatably supported by a fulcrum shaft 964a as shown in FIG. Note that the track surface (plane) of the limit lever 964 may be on the same plane as the track surface (plane) of the contact lever on the premise that the limit lever 964 can contact the contact lever. However, it may be on a plane parallel to the track surface of the contact lever.

In this temperature setting range limiting mechanism 960, the fixing pin 961 is vertically movable when no container such as the pot 410 or the heat insulating plate 420 is placed on the main body. When the fixing pin 961 is pushed down from the upper end position to the lower end position, the end of the connecting rod 963 on the fixing pin side moves downward as shown in FIG. 964 rotates to the right in bottom view. By the way, when a container such as the deep pot 410 or the heat insulating plate 420 is not placed on the main body 900 and the fixing pin 661 is positioned at the lower end position, the rotating lever 251 is moved to the maximum temperature setting position. Then, the rotating lever 251 rotates the limit lever 964 in the opposite direction, that is, to the left. As the limit lever 964 rotates in the opposite direction, the fixing pin 961 rises to the upper end position and protrudes from the opening of the bottom wall of the annular groove Gc of the heat shield plate 240 . When the fixing pin 961 is at the upper end position as described above, the rotating lever 251 moves without coming into contact with the limit lever 964 until reaching the maximum temperature setting position.

<Restrictions on the set temperature range when the heat insulating plate is attached>
In the grill pan according to the present embodiment, when the heat insulating plate 420 is normally placed on the main body 900, the fixing pin 961 descends to fix the limit lever 964. As a result, the rotating lever 251 is restricted to the low temperature range only. Here, the state in which the heat insulating plate 420 is normally placed on the main body 900 means that the annular protrusion 422 of the heat insulating plate 420 is completely in the annular groove Gc of the heat shield plate 240 of the main body. It refers to the state of being stuck in.

The function of the temperature setting range limiting mechanism 960 will be described below in detail regarding the setting temperature range limit when the heat insulating plate is attached.

Before the heat insulating plate 420 is placed on the main body 900, the fixing pin 961 is in a vertically movable state. When the heat insulating plate 420 is placed on the main body 900, the annular protrusion 422 of the heat insulating plate 420 comes into contact with the upper end of the fixing pin 961 and prohibits the fixing pin 961 from rising. At this time, if the rotating lever 251 of the main body 900 is positioned in the low temperature range, the limit lever 964 is fixed, and the limit lever 964 is positioned at the boundary between the low temperature range and the medium temperature range. When the limit lever 964 is in this state, the limit lever 964 prohibits the movement of the rotating lever 251 to the intermediate/high temperature range. On the other hand, when the rotating lever 251 of the main body 900 is positioned in the middle/high temperature range, the annular protrusion 422 of the heat insulating plate 420 protrudes from the opening of the bottom wall of the annular groove Gc of the heat shield plate 240. Push pin 961 down. At this time, the rotation lever 251 is moved to the low temperature range while the restriction lever 964 rotates rightward in the bottom view. Then, when the rotating lever 251 moves to the low temperature range, the restriction lever 964 is fixed, and the movement of the rotating lever 251 to the intermediate and high temperature range is prohibited.

<Characteristics of the grill pan according to the sixth embodiment of the present invention>
(1)
In the grill pan according to the sixth embodiment of the present invention, only when the heat insulating plate 420 is placed on the main body 900, the temperature setting range limiting mechanism 960 is actuated to prohibit the rotation lever 251 from moving to the intermediate/high temperature range. be done. Therefore, in this grill pan, it is possible to prevent the cooked food to be kept warm from burning or rapidly deteriorating when the heat retaining plate 420 is used.

(2)
In the grill pan according to the sixth embodiment of the present invention, when the heat insulating plate 420 is placed on the main body 900 while the turning lever 251 of the main body 900 is positioned in the middle/high temperature range, the limit lever 964 is moved to the bottom surface. The rotating lever 251 is moved to the low temperature region while rotating toward the right side in the view. Therefore, the user can limit the operation range of the rotating lever 251 to the low temperature range without worrying about the position of the knob portion 254 when placing the heat insulating plate 420 on the main body.

<Modification>
(A)
Although the detection pin 961 was not urged upward in the grill pan according to the previous embodiment, the detection pin 961 may be urged upward in the same manner as the detection pin 261 according to the first embodiment. I don't mind. In this case, the movement of the rotating lever 251 can be made smoother in the medium and high temperature range.

(B)
Although not specifically mentioned in the previous embodiment, modifications (A) to (E) of the first embodiment may be applied to the grill pan of the sixth embodiment.

100 grill pan (cooker)
220 hot plate (heating part)
230 thermostat (rotary temperature controller)
231a contact 235b rotating shaft (rotating body)
251 rotating lever 252 shaft (first shaft, second shaft)
254c claw (projection)
261 detection pin (moving member)
262 coil spring (biasing member)
265 stopper (turning range limiting member)
290 heat sensitive plate (heat sensitive part)
410 pot (second heated vessel)
420 heat insulation plate (first heated container)
422 Annular protrusion (contact portion)
562 Shaft 563 Swing bar (rotation range limiting member)
660 temperature setting range limit mechanism (movement conversion mechanism)
667 Limiting lever with bevel gear (turning range limiting member)
667d Limiting wall (limiting wall)
760 Temperature setting range limit mechanism (push-back mechanism)
763 claw portion 764 piston (rotational range limiting member)
764b Claw receiving portion 765A Upper guide portion (guide portion)
765B lower guide part (guide part)
766 first coil spring (first biasing member)
768 third coil spring (second biasing member)
790 Contact lever 865a Claw receiving portion (step-moving rail portion)
960 temperature setting range limit mechanism (movement conversion mechanism)
964 limit lever (rotation range limit member)
964a fulcrum shaft (second shaft)

Claims (11)

a heating unit;
a heated container detachably placed on the heating unit and heated by the heating unit;
a heat-sensitive portion capable of sensing the heat of the heated container;
a rotary temperature controller having a rotating body and a contact, and capable of opening and closing the contact according to temperature changes caused by heat flowing from the heat-sensitive part and setting the opening/closing temperature of the contact by rotating the rotating body;
a rotating lever connected to the rotating body,
As the heated container, either a first heated container having a contact portion on the back side or a second heated container having a non-contact portion on the back side can be selected,
When the first container to be heated is placed on the heating unit, the first container to be heated moves in contact with the contact unit, but when the second container to be heated is placed on the heating unit a moving member that does not contact and does not move with the non-contact portion;
and a rotation range limiting member that limits the rotation range of the rotation lever as the moving member moves. The rotation range includes a first rotation range and a second rotation range,
When the rotating lever is in the first rotating range, the moving member can move to a specific position. 2. The heating cooker according to claim 1, wherein the first container to be heated is not placed normally. The moving member is vertically movable,
further comprising a biasing member that biases the moving member upward;
The rotation range limiting member is attached to the moving member, is positioned above the rotating lever when the moving member is positioned at the upper end position, and is positioned above the rotating lever when the moving member is positioned at the lower end position. 3. The heating cooker according to claim 1 or 2, which is positioned to the side of the rotating lever. The rotation range includes a first rotation range and a second rotation range,
When the rotating lever is in the first rotating range, the rotating range limiting member is fixed in a specific state without coming into contact with the rotating lever along with the movement of the moving member, and the rotating lever is When in the second rotation range, the rotation range limiting member abuts against the rotation lever until the rotation range limiting member is fixed in the specific state with the movement of the moving member. 2. The heating cooker according to claim 1, wherein the rotating lever is moved to the first rotating range. The moving member is vertically movable,
The rotation range limiting member is a rod,
further comprising a shaft supporting portion that supports a base end portion of the rotation range limiting member so that a distal end portion of the rotation range limiting member can swing vertically;
The heating cooker according to claim 1 or 4, wherein the tip portion of the rotation range limiting member is fixed in a specific state when the moving member is positioned at the lower end position. The rotation range includes a first rotation range and a second rotation range,
When the rotating lever is in the first rotating range, the rotating range restricting member moves to a specific position without coming into contact with the rotating lever in accordance with the movement of the moving member, and the rotating lever moves to the first rotating range. When in the second rotation range, the rotation range limiting member comes into contact with the rotation lever while the rotation range limiting member moves to the specific position with the movement of the moving member. The heating cooker according to claim 1, wherein the lever is moved to the first rotation range. the rotating lever is rotatable about a first axis along a first plane;
The moving member is vertically movable,
The rotation range limiting member is rotatable about a second axis along the first plane or a second plane parallel to the first plane,
7. The heating cooker according to claim 1, further comprising a motion conversion mechanism for converting vertical motion of said moving member into rotational motion of said rotational range limiting member. 8. The rotation range limiting member has a limiting wall having a height or depth exceeding the first plane, and is rotatable about the second axis along the second plane. The heating cooker described. The moving member is vertically movable,
The rotating lever has a projection on the upper side and is biased obliquely upward,
further comprising an arc-shaped step-moving rail portion provided above the track of the protrusion when the rotating lever rotates, and having a plurality of recesses capable of receiving the protrusion;
The rotation range limiting member is attached to the tip of the moving member, is positioned above the rotating lever when the moving member is positioned at the upper end position, and is positioned above the rotating lever when the moving member is positioned at the lower end position. 7. The heating cooker according to claim 1 or 6, which is located on the side of said rotating lever. The rotation range includes a first rotation range and a second rotation range,
When the rotating lever is in the second rotating range, the rotating range restricting member moves the rotating lever to the first rotating range as the moving member moves, and the moving member moves. 2. according to claim 1, wherein when the rotating lever is moved to the second rotating range after the completion of heating cooker. The moving member is vertically movable,
The rotation range limiting member has a linear claw receiving portion having a plurality of recesses,
a first biasing member that biases the moving member upward;
an abutment lever extending from the base end side of the rotating lever;
a guide portion that guides the rotation range limiting member so as to be able to move linearly along the direction in which the plurality of recesses are arranged; A pawl portion that can be engaged with the recessed portion of the pawl receiving portion of the limiting member, but is not engaged with the recessed portion of the pawl receiving portion of the rotation range limiting member when the moving member moves downward. 11. The heating cooker according to claim 1 or 10, further comprising a push-back mechanism having: and a second biasing member that biases the rotation range limiting member toward the contact lever.

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