JP6177038B2 - Temperature detection device for stove - Google Patents

Description

  According to the present invention, a movable side support body provided with a contact body provided with a thermistor is provided on a fixed side support body fixed to a fixed portion provided on a stove so as to be movable up and down, and the contact body is attached upward. The abutting body is provided with an urging means for energizing, and the abutting body abutting on the bottom surface of the cooking container heated by the stove follows an up-and-down movement of the cooking container in a vertically movable range of the moving support. And it is related with the temperature detection apparatus for cookers comprised so that it may always contact | abut on the bottom face of the said cooking container.

  Such a temperature detection device for a stove is used to detect the temperature of the bottom of a cooking vessel heated by the heating means in a stove provided with an annular burner (heating means). The supporting cylinder is disposed inside the annular heating means so that the abutting body can be brought into contact with the bottom of the cooking container, and the temperature of the abutting body is adjusted by the temperature detection device. It is designed to detect as temperature.

  In such a temperature detecting device for a stove, a coil spring is generally used as an urging means for urging the contact body upward (see, for example, Patent Document 1).

  The temperature detection device for a stove of Patent Document 1 supports a cylindrical cylindrical support body that supports an abutting body that abuts on the bottom of an object to be heated at an upper end portion, and supports the cylindrical support body in a vertically movable manner. A base, a thermistor as temperature detecting means for detecting the temperature of the contact body, and a coil spring for returning and energizing the cylindrical support upward are provided.

JP 2005-331205 A

  Such a temperature detecting device for a stove detects the temperature of the cooking container by bringing the abutting body into contact with the bottom of the cooking container placed on the virtues, for example. Following this, since the contact body including the thermistor needs to be moved up and down and properly contact the bottom surface of the cooking container at all times, as a coil spring for urging the contact body upward, the contact body is A coil spring having a free length and a spring constant so that the abutting body surely abuts against the bottom of the cooking container is used even when it is located at the uppermost position of the vertically movable range.

  However, in the temperature detection device for a stove disclosed in Patent Document 1, the contact body is located at the uppermost position in the vertical movement movable range and the contact body is located at the lowermost position in the vertical movement movable range. In comparison, the urging force by the coil spring increases as the contact body is positioned downward. Therefore, even when the contact body is positioned at the uppermost position of the vertically movable range, the contact body is surely secured. When using a coil spring with a spring constant that comes into contact with the bottom of the cooking container, if the contact body is located at the lowest position in the vertically movable range, the urging force by the coil spring becomes too large. When using a small and light snow flat pan made of aluminum as a cooking container, the cooking container is lifted by the contact body, and the cooking container is not placed at an appropriate position on the virtues, and the cooking container is inclined. There is Jill fear.

  On the other hand, when a coil spring having a spring constant such that the biasing force by the coil spring is not excessively large when the abutting body is positioned at the lowest position in the vertically movable range, the cooking container is used by the abutting body. Is lifted and the cooking container is not placed at an appropriate position on the virtues, and the cooking container is not inclined, but when the abutment body is located in the uppermost vicinity of the vertically movable range, When the urging force of the coil spring is too small, the contact body cannot return to the uppermost position in the vertical movement movable range, and the contact body cooks when the contact body is located at the uppermost position in the vertical movement movable range. There is a possibility that inconvenience that the temperature at the bottom of the cooking container cannot be properly detected cannot be brought into contact with the bottom of the container.

The present invention has been made paying attention to such a point, the purpose is to contact the bottom of the cooking container that is reliably heated by the stove in the vertically movable movable range of the contact body, In addition, there is provided a temperature detection device for a stove in which the inconvenience that the cooking container is lifted by the abutment body and the cooking container is inclined even when the contact body is located at the lowest position in the vertically movable range is provided. There is in point to do.

In order to achieve this object, the temperature detecting device for a stove according to the present invention moves a moving side support body provided with a contact body having a thermistor up and down on a fixed side support body fixed to a fixing portion provided on the stove. The urging means provided movably and urging means for urging the abutting body upward, the abutting body abutting on the bottom surface of the cooking container heated by the stove, It is configured to follow the vertical movement of the cooking container in a movable range so as to always come into contact with the bottom surface of the cooking container, and the invention according to claim 1 is characterized in that the upward biasing force by the biasing means. Is configured to have a substantially constant urging force regardless of the vertical movement of the cooking container in the vertical movement movable range of the moving side support ,
The biasing means is configured by using a constant load spring provided between the fixed side support and the moving side support .

  According to the first aspect of the present invention, the upward biasing force by the biasing means is substantially constant regardless of the vertical movement of the cooking container heated by the stove in the vertical movement movable range of the moving support. Since it is configured to be an urging force, the contact body reliably contacts the bottom of the cooking container heated by the stove in the movable range of the contact body, and the contact body moves up and down. Even when it is positioned at the lowest position in the movable range, it is possible to suppress the inconvenience that the cooking container is lifted by the contact body and the cooking container is inclined.

The temperature detecting device for stove according to claim 1, before Symbol biasing means, the points formed by using a constant force spring which is provided between said fixed-side support and the movable support Features.

According to the first aspect of the present invention, in a conventional temperature detection device for a stove, a constant load is used instead of a coil spring that is generally provided as a biasing means between the fixed side support and the movable side support. by configuring with a spring, temperature detecting device for stove can be easily configured.

That is, the constant load spring has a substantially constant output (tensile load) regardless of the distance drawn compared to a spring such as a coil spring. For this reason, in the temperature detection device for a stove, it is constituted by using a constant load spring instead of a coil spring generally provided as a biasing means between the fixed side support and the moving side support. The temperature detection device for 1 stove can be simply configured.

  In general, the coil spring as the biasing means provided between the fixed side support and the movable side support is configured to be compressed as the movement side support moves downward. The repulsive force of the coil spring generated by the compression of the coil spring is used as a biasing force that biases the moving support in the upward direction, and the coil spring is used as a so-called compression spring. Since a generally known constant load spring is used as a so-called tension spring, the temperature detecting device for the stove is configured using a constant load spring instead of the coil spring in the conventional temperature detecting device for the stove. For this purpose, the temperature detecting device for the stove is configured using a tension spring instead of the compression spring.

  In addition, regarding the point of using a tension spring instead of the compression spring, more specifically, it is provided between the fixed side support body and the moving side support body as the moving side support body moves downward. A tension force is applied to the constant load spring as an urging means, and the tension generated in the constant load spring as the constant load spring tries to return to its original state is used as the urging force for urging the movable support upward. become.

According to a second aspect of the present invention , there is provided a temperature detecting device for a stove, in which a movable side support body provided with a contact body including a thermistor on a fixed side support body fixed to a fixing portion provided on the stove is movable up and down. And a biasing means for biasing the abutting body upward, and the abutting body abutting on the bottom surface of the cooking container heated by the stove is movable up and down in the movable support , A temperature detecting device for a stove that is configured to follow the vertical movement of the cooking container and constantly come into contact with the bottom surface of the cooking container, and the upward biasing force by the biasing means but it is configured to be substantially constant urging force regardless of the vertical movement of the cooking vessel in the vertical movement range of movement of the movable support downward by gravity acting on the host heavy or Tsuri支been weight An energized linear body and the stove or A rotating body that is pivotally supported by the fixed-side support, and that converts a biasing force generated downward by gravity acting on the weight or the weight that is supported by the weight, into a rotational force; and a shaft that is supported by the stove or the fixed-side support. A pinion gear that is rotationally driven by the rotational force of the rotating body, and a rack gear that converts the rotational motion of the pinion gear into a linear motion, and the rack gear is raised by the lowering of the linear body. The moving-side support raising mechanism is configured such that the moving-side supporting body rises by raising, and the urging means is constituted by the moving-side support raising mechanism.

According to the second aspect of the present invention, the linear body urged downward by gravity acting on the weight or the weight supported by the weight, and the stove or the fixed side support are pivotally supported. Alternatively, a rotating body that converts a biasing force generated downward due to gravity acting on the weight supported by the fishing rod into a rotating force, and a shaft that is supported by the stove or the fixed-side support body, and is rotationally driven by the rotating force of the rotating body. A pinion gear, and a rack gear that converts the rotational motion of the pinion gear into a linear motion, the rack gear ascends as the linear body descends, and the moving support ascends as the rack gear ascends. The urging means that constitutes the moving side support raising mechanism and urges the moving side support upward is constituted by the moving side support raising mechanism, and the urging force by the urging means is a linear body. In Since is by gravity acting on the mass to be supported state, and are not urging force does not depend on the difference in vertical position of the movable support, the temperature detection device hob, conveniently by common components Can be configured.

According to the first and second aspects of the present invention, the contact body reliably contacts the bottom of the cooking container heated by the stove in the vertically movable range of the contact body. Even when the abutting body is located at the lowest position in the vertically movable range, the inconvenience that the cooking container is lifted by the abutting body and the cooking container is inclined can be suppressed.

Further, according to the invention described in claim 1, by constituting with a constant force spring in place of the general coil spring provided as a biasing means between the fixed-side support and the movable support , the temperature detecting device for co Nro can easily configured.

According to the invention described in claim 2, the temperature detecting device for co Nro is, can be easily configured by common components.

The perspective view which shows the gas table stove provided with the temperature detection apparatus for stoves of this invention Side sectional view which shows the case where the movement side support body is located in the uppermost part in the up-and-down movement movable range of 1st embodiment of the temperature detection apparatus for stoves of this invention Side sectional view which shows the case where the movement side support body is located in the lowest part in the up-and-down movement movable range of 1st embodiment of the temperature detection apparatus for stoves of this invention Side sectional drawing which shows the case where the movement side support body is located in the uppermost part in the up-and-down movement movable range of 2nd embodiment of the temperature detection apparatus for stoves of this invention. Sectional side view which shows the case where the movement side support body is located in the lowest part in the up-and-down movement movable range of 2nd embodiment of the temperature detection apparatus for stoves of this invention Side sectional view illustrating the case where the moving side support body is positioned at the uppermost position in the movable range of the vertical movement of the conventional temperature detecting device for the stove Side sectional view illustrating the case where the moving side support body is located at the lowest position in the vertical movement movable range of the conventional temperature detection device for a stove

An embodiment of a temperature detection device for a stove according to the present invention will be described with reference to the drawings.
A table-mounted gas table stove A as a stove provided with a temperature detection device for a stove according to the present invention has a cylindrical outer shape in which the upper surface of the gas stove body 01 is covered with a top plate 02 as shown in FIG. 2 gas burners of a Bunsen type left burner (comb burner) 31 and a right burner (comb burner) 32 having a burner, and are provided on the outer periphery of each gas burner through a burner opening 34 formed in the top plate 02. The formed flame hole portion 33 is projected above the top plate 02.

In the gas table stove A, the front panel 40 provided on the side surface 07 in front of the gas stove main body 01 has a left point fire extinguishing operation unit 41 for performing a point fire extinguishing operation of the left burner (a stove burner) 31 and a right burner (a stove burner). ) A right point fire extinguishing operation unit 42 for performing 32 point fire extinguishing operations is provided, and the gas table stove A is illustrated based on the operations of the left point extinguishing operation unit 41 and the right point fire extinguishing operation unit 42. The left and right burners 31 and 32 are controlled to be extinguished by opening and closing a gas valve and starting and stopping an igniter (not shown).

  As shown in FIG. 1, five victories 05 for placing cooking containers heated by the gas table stove A are disposed on the outer circumferences of the left burner 31 and the right burner 32. A left sensor (temperature detection device) 61 passes through the left sensor opening 51 and the right sensor opening 52 provided in the center of the burner (combustor) 31 and the right burner (combustor) 32 from the bottom upward. A right sensor (temperature detection device) 62 is disposed.

  As described above, the gas table stove A includes the left sensor (temperature detecting device) 61 and the right sensor (temperature detecting device) 62 as temperature detecting devices for detecting the temperature of the cooking container heated by the gas table stove A. Since the left sensor (temperature detection device) 61 and the right sensor (temperature detection device) 62 are configured in the same manner, the left sensor (temperature detection device) 61 will be described in the following description regarding the temperature detection device. The description of the right sensor (temperature detection device) 62 is omitted unless particularly the description of the right sensor (temperature detection device) 62 is required.

  In the first embodiment, as shown in FIG. 2, the left sensor (temperature detection device) 61 includes a cylindrical fixed side support 71, and the fixed side support 71 is a fixed portion (not shown) in the gas stove main body 01. Z). A cylindrical moving support 72 having a contact body 74 having a thermistor 73 provided at the upper end thereof is inserted into the fixed support 71 and is slidable up and down with respect to the fixed support 71. ing. A drum 76 around which the constant load spring 75 is wound is rotatably attached to the lower end of the moving side support 72, and a tip 77 of the constant load spring 75 drawn from the drum 76 is attached to the fixed side support 71. It is fastened with screws.

  When the abutment body 74 is moved downward from the state of FIG. 2 where the moving side support body 72 is located at the uppermost position in the vertically movable range, the constant load spring 75 is pulled out from the drum 76, and the constant load spring 75 is Although the end of the constant load spring 75 is fixed to the fixed support 71, the end 77 of the constant load spring 75 cannot be moved, and the constant load spring 75 does not move to the drum 76. The urging force F that urges the drum 76 in the upward direction is generated by the force of rewinding, and the abutting body 74 is urged in the upward direction by the urging force F in the upward direction. That is, the constant load spring 75 provided between the fixed side support 71 and the movement side support 72 constitutes a biasing means 81 that biases the contact body 74 upward.

Since the force that the constant load spring 75 tries to rewind to the drum 76 is substantially constant regardless of the length of the constant load spring 75 pulled out from the drum 76, the movable support 72 is the most in the vertically movable range. The urging force F for urging the drum 76 upward is substantially constant from the state shown in FIG. 2 located above to the state shown in FIG. 3 where the movable support 72 is located at the lowest position in the vertically movable range. The urging force F by the urging means 81 is substantially constant regardless of the vertical movement of the cooking container in the vertical movement movable range of the moving support 72. In the state of FIG. 2 in which the movable support 72 is located at the uppermost position in the vertically movable range, the upper surface of the bent portion 82 provided at the lower end of the outer cylinder 78 that is suspended from the outer periphery of the contact body 74 is A lower surface of a washer 79 fixed to a fixed-side support 71 on the lower end surface side of the bent portion 80 formed at the upper end of the fixed-side support 71 and configured to be slidable up and down with respect to the outer cylinder 78; By abutting, the upward movement of the movable support 72 in FIG. 2 or higher is restricted.

  Therefore, even if the abutting body 74 is pushed down following the vertical movement of the cooking container heated by the gas table stove A, the urging force F that urges the abutting body 74 upward by the urging means 81. Is a substantially constant urging force regardless of the vertical movement of the cooking container in the vertically movable range of the movable support 72, and even when the contact body 74 is located at the lowest position in the vertically movable range. The disadvantage that the cooking container is lifted by the body 74 and the cooking container is inclined is suppressed.

In the second embodiment, as shown in FIG. 4, as in the first embodiment described above, the left sensor (temperature detection device) 61 includes a cylindrical fixed support 71, and the fixed support 71 is It is fixed to a fixing part (not shown) in the gas stove main body 01. A cylindrical moving support 72 having a contact body 74 having a thermistor 73 provided at the upper end thereof is inserted into the fixed support 71 and is slidable up and down with respect to the fixed support 71. However, the constant load spring 75 and the drum 76 are not provided, and a moving side support raising mechanism 88 is provided as the biasing means 81 as described below.

  In the second embodiment, as shown in FIG. 4, a weight 83 is vertically supported from one end thereof, for example, a flexible wire (linear body) 84 made of synthetic resin and the weight of the weight 83. A pulley (rotary body) 85 pivotally supported on the gas stove body 01 that converts the downward tension generated in the wire (linear body) 84 by the (biasing force generated by gravity) into a rotational force, and is pivotally supported on the gas stove body 01. , A pinion gear 86 that is rotationally driven by the rotational force of a pulley (rotating body) 85, and a rack gear 87 that is fixed to the moving support 72 and converts the rotational motion of the pinion gear 86 into linear motion. In this embodiment, the pulley (rotating body) 85 and the pinion gear 86 are pivotally supported by the gas stove body 01. However, both or either of the pulley (rotating body) 85 and the pinion gear 86 is a fixed-side support. You may comprise so that it may be supported by 71.

  Then, the rack gear 87 is raised by the lowering of the wire (linear body) 84 due to the lowering of the weight 83 due to the gravity, the moving support 72 is raised by the raising of the rack gear 87, and is lowered by the gravity of the weight 83. The wire (linear body) 84, the pulley (rotary body) 85, the pinion gear 86, and the rack gear 87 constitute a moving side support raising mechanism 88, and the moving side support raising mechanism 88 constitutes an urging means 81. The

  When the abutment body 74 is moved downward from the state shown in FIG. 4 in which the movable support 72 is located at the uppermost position in the vertical movement movable range, the pinion gear 86 rotates as the rack gear 87 moves downward, and the weight It rotates in the direction to wind up the wire (linear body) 84 on which 83 is supported. Then, the wire (linear body) 84 is wound around the pulley (rotary body) 85, but the wire (linear body) 84 is urged downward by the gravity acting on the weight 83, so that the rack gear 87 is moved upward. A rotational force acts on the pulley (rotating body) 85 in the direction of urging it in the direction. In other words, the abutting body 74 is urged upward by the urging force F of the moving support 72 by the gravity acting on the weight 83. That is, the biasing means 81 is configured by the moving side support raising mechanism 88.

Since the gravity acting on the weight 83 is substantially constant regardless of the vertical position of the moving support 72, the moving support 72 moves from the state shown in FIG. The urging force F for urging the rack gear 87 upward is substantially constant until the side support 72 is in the state of FIG. The force F is substantially constant regardless of the vertical movement of the cooking container in the movable range of the movable support 72 in the vertical direction. In the state of FIG. 4 in which the movable support 72 is located at the uppermost position in the vertically movable range, the upper surface of the bent portion 82 provided at the lower end of the outer cylinder 78 that is suspended from the outer periphery of the contact body 74 is A lower surface of a washer 79 fixed to a fixed-side support 71 on the lower end surface side of the bent portion 80 formed at the upper end of the fixed-side support 71 and configured to be slidable up and down with respect to the outer cylinder 78; It is the same as that of 1st embodiment about the point by which the upward movement of FIG. 2 or more of the movement side support body 72 is controlled by contact | abutting.

  Therefore, also in the second embodiment, even if the contact body 74 is pushed down following the vertical movement of the cooking container heated by the gas table stove A, the contact body 74 by the biasing means 81 is moved upward. The urging force F that urges the moving body 72 is a substantially constant urging force regardless of the vertical movement of the cooking container in the vertical movement movable range of the movable support 72, and the contact body 74 is positioned at the lowest position in the vertical movement movable range. In this case, the inconvenience that the cooking container is lifted by the contact body 74 and the cooking container is inclined is suppressed.

On the other hand, in the conventional stove temperature detection device, as shown in FIGS. 6 and 7, the coil spring 91 provided between the moving side support 72 provided with the contact body 74 and the fixed side support 71. Therefore, the movable support 72 is moved to the lowest position in the vertically movable range from the state shown in FIG. 6 that is located at the uppermost position in the vertically movable range. Since the urging force that urges the moving support 72 upward is linearly increased with respect to the distance that the moving support 72 moves toward the state shown in FIG. In the case of FIG. 6 where 74 is located at the uppermost part of the vertically movable range, when the coil spring 91 having a spring constant is used so that the contact body 74 reliably contacts the bottom of the cooking container, the contact body 74. Is located at the bottom of the movable range In this case, the urging force of the coil spring 91 becomes too large. For example, when a light and small snow pan made of aluminum is used as a cooking container, the cooking container is lifted by the contact body 74, and the cooking container is There is a possibility that the inconvenience that the cooking container tilts without being placed at an appropriate position on Gotoku 05 may occur.
[Another embodiment]

Hereinafter, other embodiments will be listed.
(1) In the above embodiment, the case where the temperature detecting device for a stove according to the present invention is applied to the gas table stove A is illustrated, but the present invention is also applicable to a gas drop-in stove and an electric stove.
(2) In the first embodiment, the case where the tip 77 of the constant load spring 75 is fixed to the fixed support 71 and the drum 76 is fixed to the moving support 72 is shown. Alternatively, the front end 77 may be fixed to the movable support 72 and the drum 76 may be fixed to the fixed support 71.
(3) In the second embodiment, the pulley 85 is used as the rotating body and the wire 84 is used as the linear body. However, instead of the pulley 85 as the rotating body, the second pinion gear is used as the linear body. Instead of the wire 84, a second rack gear may be used so that as the weight is lowered, the second rack gear is lowered and the second pinion gear is rotated to obtain the rotational force of the pinion gear 87. In this case, the weight 83 may not be provided, and the second rack gear may be urged downward by the weight of the second rack gear.
(4) In the second embodiment, the wire (linear body) 84, the weight 83 and the pulley (rotary body) 85 are not provided, and the rotational force of the pinion gear 86 is obtained by the rotational force of a motor such as a stepping motor, You may comprise so that the urging | biasing force which urges | biases the contact body 74 upward may be obtained.
(5) In the second embodiment, the wire (linear body) 84 and the weight 83, the pulley (rotating body) 85 and the pinion gear 86 are not provided, the rack gear 87 is not provided, and a number of rack gears 87 are replaced. A rod-shaped body made of a magnetic material having protrusions arranged in the vertical direction is arranged along the vertical direction of the movable support 72, and the magnetic attraction force is applied to the magnetic poles using the above-mentioned many protrusions as magnetic poles. A magnetic field generating part to be generated is disposed along the many protrusions, and the rod-shaped body is biased upward by appropriately switching the magnetic field in the magnetic field generating part, and the movable support 72 is applied upward. The urging force to be urged may be configured so as to obtain a substantially constant urging force regardless of the vertical movement of the cooking container in the movable range of the movable support 72 in the vertical direction.

A Gas table stove 01 Gas stove body 02 Top plate 05 Gotoku 07 Front side 31 Left burner (stove burner)
32 Right burner
33 Flame hole part 34 Burner opening 40 Front panel 41 Left point fire extinguishing part 42 Right point fire extinguishing part 51 Left sensor opening 52 Right sensor opening 61 Left sensor (temperature detection device)
62 Right sensor (temperature detector)
71 Fixed side support 72 Moving side support 73 Thermistor 74 Abutting body 75 Constant load spring 76 Drum 77 Tip of constant load spring 78 Outer cylinder 79 Washer 80 Bending portion 81 formed at the upper end of the fixed side support 81 Biasing means 82 Bending part 83 provided at the lower end of the outer cylinder Weight 84 Wire (linear body)
85 Pulley (Rotating body)
86 Pinion gear 87 Rack gear 88 Moving support lifting mechanism 91 Coil spring F Energizing force

Claims (2)

A fixed support that is fixed to a fixed portion provided on the stove is provided with a movable support that is provided with a contact body including a thermistor so as to be movable up and down, and an urging force that biases the contact body upward. The contact body, which is in contact with the bottom surface of the cooking container heated by the stove, moves up and down following the vertical movement of the cooking container in the movable range of the movable side support body at all times. A temperature detection device for a stove configured to contact the bottom surface of a cooking container,
The upward biasing force by the biasing means is configured to be a substantially constant biasing force regardless of the vertical movement of the cooking container in the vertical movement movable range of the moving support .
The temperature detecting device for a stove , wherein the urging means is configured using a constant load spring provided between the fixed side support and the moving side support .   A fixed support that is fixed to a fixed portion provided on the stove is provided with a movable support that is provided with a contact body including a thermistor so as to be movable up and down, and an urging force that biases the contact body upward. The contact body, which is in contact with the bottom surface of the cooking container heated by the stove, moves up and down following the vertical movement of the cooking container in the movable range of the movable side support body at all times. A temperature detection device for a stove configured to contact the bottom surface of a cooking container,
  The upward biasing force by the biasing means is configured to be a substantially constant biasing force regardless of the vertical movement of the cooking container in the vertical movement movable range of the moving side support body. A linear body urged downward by the gravity acting on the weights made,
A rotating body that is pivotally supported by the stove or the fixed-side support body, and that converts an urging force generated downward by gravity acting on the weight or the weight supported by the weight, into a rotational force;
A pinion gear that is pivotally supported by the stove or the fixed-side support and is rotationally driven by the rotational force of the rotating body;
A rack gear that converts the rotational motion of the pinion gear into linear motion,
The rack gear is raised by lowering the linear body, and the moving side support raising mechanism is constructed in which the moving side support rises by raising the rack gear,
  The temperature detecting device for a stove, wherein the biasing means is constituted by the moving side support raising mechanism.

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