JP4045987B2 - rice cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice cooker having a hook lever that covers a top surface of a rice cooker body and that is attached to be freely opened and closed to hold and open the lid.
[0002]
[Prior art]
Conventionally, this type of rice cooker has a convex part where the top surface of the rice cooker body in front of the pan is greatly raised, and a concave hook lever holding part that holds the hook lever near the upper part of the convex shape. Provided. Bearing holes for fitting the hook lever bearings are formed on both sides of the hook lever holding part, and usually the inlets of the bearing holes provided in the rice cooker body compared to the dimensions of both ends of the rotation shaft of the hook lever The size is smaller, and the hook lever is fitted while being press-fitted. In addition, there is a rear surface of the bearing hole provided with an invitation surface for the purpose of improving the mountability of the hook lever (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-128854
[Problems to be solved by the invention]
However, in the rice cooker having the above-described configuration, when the hook lever is attached to the rice cooker body, it is necessary to press-fit the rotating shaft of the hook lever into the bearing portion of the rice cooker body, and workability is poor. In addition, the hook lever is urged upward in the lid opening direction during normal use. Therefore, in order to improve the ease of press fitting while ensuring the allowance between the rotating shaft and the bearing hole, It is necessary to provide an invitation surface in the horizontal direction and to attach the hook lever from the horizontal rear.
[0005]
Therefore, it has the structure which can mount | wear a hook lever from a horizontal back by comprising the convex part greatly raised ahead of the pan of the rice cooker main body, and providing a hook lever bearing part in the convex part. In such a configuration, since there is a large convex portion in front of the pan, there is a problem that the top surface of the rice cooker main body is not good, as well as being in the way when serving rice.
[0006]
Further, if the invitation surface is made too large, the allowance between the rotating shaft and the bearing hole is reduced, and there is a problem that, for example, an impact at the time of transportation or a possibility of coming off at the time of maintenance by the user occurs.
[0007]
The present invention solves the above-described conventional problems, improves the wearability by eliminating the need to press-fit a hook lever, makes the top surface of the rice cooker main body flat, and makes it easy to make rice and the top of the rice cooker main body. The purpose is to improve surface care.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention detachably stores a pan in a rice cooker body, covers the top surface of the rice cooker body with a lid that can be freely opened and closed, and a lid on the front of the rice cooker body. A hook lever that holds and opens in a closed state is provided, and the rice cooker body has a hook lever mounting portion for mounting the hook lever, and the concave shape that supports the rotating shafts provided at both ends of the hook lever in the hook lever mounting portion. And a first spring receiving portion for holding a spring member for biasing the hook lever so as to hold the lid in a closed state, and the hook lever is attached to the hook lever mounting portion, The hook lever is configured to be prevented from coming off , and the hook lever has a second spring receiving portion arranged on the back surface so as to be shifted in the left-right direction with respect to the first spring receiving portion provided in the hook lever mounting portion. Receiving part and second spring support Mounting the spring member to provide a biasing force in the rotational direction to the hook lever between parts, by the spring member, which is constituted so that the biasing force is generated in the thrust direction to the hook lever.
[0009]
This eliminates the need to press-fit the hook lever, improves the wearability, and makes the top surface of the rice cooker body flat, improving the ease of laying rice and maintaining the top surface of the rice cooker body. Can be improved. Furthermore, when the hook lever is attached, the thrust force that always presses the hook lever from the long axis side to the short axis side works simultaneously with the rotational force for maintaining the closed state when the cover is closed by the biasing force of the spring member. As a result, the pressing lever is always pressed in the direction opposite to the pulling direction, so that the hook lever does not come off during the assembly process, and the workability can be improved.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Invention of Claim 1 of this invention is the rice cooker main body, the pan detachably accommodated in the said rice cooker main body, the cover body which covered the upper surface of the said rice cooker main body, and was attached so that opening and closing was possible, A hook lever provided at the front of the rice cooker main body to hold and open the lid, and the rice cooker main body has a hook lever mounting portion for mounting the hook lever, and the hook lever mounting A concave bearing portion that supports the rotating shafts provided at both ends of the hook lever, and a first spring receiving portion that holds a spring member that biases the hook lever so as to hold the lid in a closed state; The hook lever is mounted on the hook lever mounting portion and is configured to be prevented from being pulled out by a pull-out preventing member, and it is possible to eliminate the need to press-fit the hook lever and improve the mounting performance. Cooking The top of the cooker body can be flattened to improve the ease of laying rice and the top of the rice cooker body, and to prevent the hook lever from coming off during transportation and user care. Can improve safety.
[0011]
Furthermore, the hook lever has a second spring receiving portion arranged on the back surface so as to be shifted in the left-right direction with respect to the first spring receiving portion provided in the hook lever mounting portion. A spring member that applies a biasing force in the rotational direction to the hook lever is mounted between the two spring receiving portions, and the spring member is configured to generate a biasing force in the thrust direction by the spring member. With the urging force of the spring member, the thrust force that always pushes the hook lever from the long shaft side to the short shaft side works at the same time as the rotational force for maintaining the closed state when the cover is closed. Since it is pressed in the direction opposite to the removal direction, the hook lever does not come off during the assembly process, and workability can be improved.
[0012]
The invention according to claim 2 is the invention according to claim 1, wherein the hook lever has one of the rotation shafts provided at both ends shorter than the other, and the width of the hook lever is equal to the hook lever. It is configured to have a dimension that is narrower by at least the length of the rotating shaft on the shorter side than the width of the mounting portion, and since the rotating shaft can be mounted one side at a time, after securing a sufficient allowance for the bearing portion, It is not necessary to press-fit when the hook lever is mounted, and the work load can be reduced.
[0013]
The invention according to claim 3 is the invention according to claim 1, wherein the rice cooker body is provided with a display operation section covered with an operation panel, and the removal prevention member is configured integrally with the operation panel. Yes, the number of parts can be reduced and the cost can be reduced.
[0014]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0015]
Example 1
As shown in FIG. 1, the rice cooker body 1 detachably houses a pan 2 with a flange inside, and rotates a lid 4 pivoted by a hinge shaft 3 at one end so that the other end can be freely opened. It is provided freely. An inner lid 5 that covers the upper surface of the pan 2 is detachably attached to the lower surface of the lid body 4, and a hook portion 7 is provided at the tip of the inner lid 5.
[0016]
At the front part of the rice cooker body 1, a hook lever 6 that locks the hook portion 7 to hold the lid body 4 in a closed state and releases the lid body 4 by releasing the latching with the hook portion 7; A concave hook lever mounting portion 9 for mounting the hook lever 6 and a display operation unit 14 for displaying the operation and operation state of the device are provided, and an operation panel 15 is provided so as to cover the surface of the display operation unit 14. ing.
[0017]
At both ends of the hook lever 6, there are provided rotating shafts 8 in which one (short shaft 8a) is shorter than the other (long shaft 8b). A concave bearing 10 that supports the shaft 8 is provided. Further, the width of the hook lever 6 excluding the rotating shaft 8 is configured to be narrower than the width of the hook lever mounting portion 9 by at least the length of the short shaft 8 a of the rotating shaft 8.
[0018]
Further, a second spring receiving portion 12 is provided inside the hook lever 6, and a first spring receiving portion 13 is provided on the bottom surface of the opposing hook lever mounting portion 9. A spring member 11 is mounted and connected between the first spring receiving portion 13 and the second spring receiving portion 12.
[0019]
The center positions of the first spring receiving portion 13 and the second spring receiving portion 12 are the first spring receiving portion 13 on the long shaft 8b side and the second spring receiving portion 12 on the short shaft 8a side, respectively. When the hook lever 6 is mounted, it is engaged with the hook portion 7 of the inner cover 5 when the cover is closed, and the cover is closed. Simultaneously with the rotational force for maintaining, a thrust force is always applied to press the hook lever 6 from the long shaft 8b side to the short shaft 8a side.
[0020]
Due to this thrust force, a gap larger than the axial length dimension of the short shaft 8a is formed on the long shaft 8b side of the hook lever mounting portion 9 and the hook lever 6, and the slip prevention member 16 is inserted into the gap. Thus, the movement of the hook lever 6 in the axial direction is restricted, and the rotating shaft 8 is prevented from coming off from the bearing portion 10.
[0021]
Next, the assembly procedure of the hook lever 6 will be described with reference to FIG. When the hook lever 6 is mounted, as shown in FIG. 2 (a), the spring member 11 is temporarily fixed to the second spring receiving portion 12 and mounted on the first spring receiving portion 13, and at the same time the rotating shaft 8 The long shaft 8b is first inserted into the bearing portion 10 of the hook lever mounting portion 9 from an oblique direction, and then the hook lever 6 is inserted into the bearing portion 10 as shown in FIG. 2 (b). Further, as shown in FIG. 2C, the short shaft 8 a of the rotating shaft 8 of the hook lever 6 is inserted into the bearing portion 10.
[0022]
At this time, the thrust force from the long shaft 8b side to the short shaft 8a side acts on the hook lever 6 by the biasing force of the spring member 11, and the hook lever 6 is always on the side wall of the hook lever mounting portion 9 on the short shaft 8a side. The gap d is formed on the major axis 8b side so as to have a gap d that is at least the axial length of the minor axis 8a.
[0023]
Next, as shown in FIG. 2 (d), a slip-off prevention member 16 is inserted into the gap d on the long shaft 8b side of the hook lever 6 to restrict the axial movement of the hook lever 6 in the lateral direction. 6 is prevented from coming off.
[0024]
With such a configuration, it is not necessary to press-fit when the hook lever 6 is mounted, and a large convex portion on the top surface of the rice cooker body 1 for holding the hook lever 6 is not required. Can be made flat, and the ease of laying rice and the care of the top surface of the rice cooker body 1 can be improved.
[0025]
Further, a sufficient allowance for the bearing portion 10 can be secured with respect to the press-fitting method, and since the spring member 11 is always urged in the direction opposite to the removal direction, the hook lever 6 can be used during the assembly process. Will not come off. Therefore, workability can be improved and the work load can be reduced.
[0026]
In addition, the hook lever 6 can be more securely held by mounting the drop prevention member 16, and the hook lever 6 is shifted to the right and left when the user is cared for a drop impact during transportation, and the rotating shaft 8 is pulled out. Can be prevented and safety can be improved.
[0027]
(Example 2)
As shown in FIG. 3, the operation panel 17 covers the surface of a display operation unit (not shown) provided in the front portion of the rice cooker body 1, and a removal prevention rib 18 is provided on the back surface of the operation panel 17. It is integrally formed. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0028]
In the above configuration, the disconnection prevention rib 18 fits into the gap on the long shaft 8b side of the hook lever mounting portion 9 and the hook lever 6 when the operation panel 17 is mounted, thereby preventing the hook lever 6 from coming off. it can.
[0029]
With this configuration, in addition to the effects described in the first embodiment, the number of parts can be reduced and the cost can be reduced.
[0030]
【The invention's effect】
As described above, according to the first aspect of the present invention, the hook lever mounting portion for mounting the hook lever has the concave bearing portion for supporting the rotating shafts provided at both ends of the hook lever, and the lid. Since the first spring receiving portion that holds the spring member that urges the hook lever to be held in the closed state is provided, and the hook lever is attached to the hook lever mounting portion, and is configured to be prevented from coming off by the removal preventing member. The need to press-fit the hook lever can be eliminated, improving the wearability, and the top surface of the rice cooker body can be made flat, improving the ease of laying rice and the ease of cleaning the top surface of the rice cooker body. In addition, it is possible to prevent the hook lever from coming off during transportation or maintenance of the user, thereby improving safety.
[0031]
Further , the hook lever has a second spring receiving portion arranged on the back surface so as to be shifted in the left-right direction with respect to the first spring receiving portion provided in the hook lever mounting portion, and the first spring receiving portion and the second spring receiving portion. A spring member that applies a biasing force in the rotational direction to the hook lever is mounted between the spring receiving portions of the spring, and the spring member is configured to generate a biasing force in the thrust direction by the spring member. Then, due to the biasing force of the spring member, the thrust force that always pushes the hook lever from the long axis side to the short axis side works simultaneously with the rotational force to maintain the lid closed state when the lid is closed, so that it is always opposite to the pulling direction. Since the hook lever is not released during the assembly process, the workability can be improved.
[0032]
According to the second aspect of the present invention, the hook lever is configured such that one of the rotary shafts provided at both ends is shorter than the other, and the width of the hook lever is smaller than the width of the hook lever mounting portion. Since it is configured to be narrower by at least the length of the rotating shaft on the short side, the rotating shaft can be mounted one side at a time, so it is necessary to press-fit when mounting the hook lever while securing sufficient allowance for the bearing part The workload can be reduced.
[0033]
According to the invention of claim 3 , since the display operation unit covered with the operation panel is provided in the rice cooker body and the removal prevention member is configured integrally with the operation panel, the number of parts can be reduced. Can be made inexpensively.
[Brief description of the drawings]
1A is a sectional view of a rice cooker according to a first embodiment of the present invention. FIG. 1B is a cross-sectional view of part A of the rice cooker. FIG. 2A is a hook lever attached to the rice cooker. (B) The main part exploded front view when the major axis of the hook lever of the rice cooker is inserted into the bearing part (c) The minor axis of the hook lever of the rice cooker (D) Front view of main part in a state where a slip-off prevention member is inserted into the gap on the long axis side of the hook lever of the rice cooker. Main part front view of the rice cooker of the embodiment [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rice cooker main body 2 Pan 4 Lid body 6 Hook lever 8 Rotating shaft 9 Hook lever mounting part 10 Bearing part 11 Spring member 13 1st spring receiving part 16 Fall-out prevention member

Claims (3)

A rice cooker body, a pan that is detachably housed in the rice cooker body, a lid body that covers the top surface of the rice cooker body, and that can be freely opened and closed, and a lid body provided at the front of the rice cooker body. A hook lever that holds and releases the hook lever, and the rice cooker body has a hook lever mounting portion for mounting the hook lever, and the rotary shafts provided at both ends of the hook lever at the hook lever mounting portion. And a first spring receiving portion for holding a spring member for biasing the hook lever so as to hold the lid in a closed state, and the hook lever is attached to the hook lever mounting portion. The hook lever is arranged so as to be prevented from coming off by a slip-off preventing member , and the hook lever is arranged on the back side so as to be shifted in the left-right direction with respect to the first spring receiving portion provided in the hook lever mounting portion. Spring bearing And a spring member that applies a biasing force in the rotational direction to the hook lever is mounted between the first spring receiving portion and the second spring receiving portion, and the thrust lever is applied to the hook lever by the spring member. A rice cooker configured to generate a biasing force in the direction .   The hook lever has a length of one of the rotation shafts provided at both ends shorter than the other, and the width of the hook lever is narrower than the width of the hook lever mounting portion by at least the length of the rotation shaft. The rice cooker according to claim 1, wherein the rice cooker is configured as follows.   The rice cooker according to claim 1, wherein a display operation unit covered with an operation panel is provided in the rice cooker main body, and the removal prevention member is configured integrally with the operation panel.

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