JP2017009126A - Gas cooking stove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a superior convenient gas cooking stove in which temperature detecting means for detecting a temperature of a cooking container does not become a hindrance item when the cooking container is moved on a trivet.SOLUTION: A temperature detecting device 9 comprises a fixed side supporting member 11; a moving side supporting cylinder 12 supported at the fixed side supporting member and constituted to be movable up and down; an abutting member 13 arranged at an upper end of the moving side supporting cylinder, moved up and down in correspondence with the moving-up and -down of a cooking container 40 and always be abutted against a bottom surface of the cooking container; and a thermistor 14 arranged to be thermally connected to the abutting member at the lower surface side of the abutting member. There is provided change-over means 15 changing over between a descending state of the temperature detecting device that the moving side supporting cylinder descends and the upper surface of the abutting member is positioned below the upper end of the trivet and an ascending state of the temperature detecting device in which the moving side supporting cylinder ascends and the upper surface of the abutting member is positioned above the upper end of the trivet, and when the cooking container is mounted on the trivet under the ascending state of the temperature detecting device, descending of the moving side supporting cylinder is allowed.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a gas stove, and more particularly to a gas stove provided with a temperature detection device that detects the temperature of a cooking container such as a pot or a pot.

  Gas stoves include a temperature detection device that detects the temperature of a cooking container such as a pot or a kettle, and a gas stove that includes a control unit that controls the heating power of the gas burner based on the detected temperature of the cooking container.

  As such a gas stove, Patent Document 1 discloses a heating cooker (gas stove) provided with a temperature detection means (temperature detection device) for detecting the temperature of the cooker and a control means for adjusting the heating power, The abutting body (heat collecting plate) of the temperature detecting means abuts on the lower surface of the cooking container heated by the combustor as a means, detects the temperature of the lower surface of the cooking container, and controls according to the detected temperature A cooking device (gas stove) has been proposed in which the means adjusts the heating power of the stove burner.

JP 2013-164257 A

  However, in the case of the heating cooker (gas stove) of Patent Document 1 described above, the contact body (heat collecting plate) of the temperature detection means (temperature detection device) places the cooking container in a state where the cooking container is not placed. It will be in a state protruding above the upper end of the five virtues.

  In such a case, when a cooking container is moved from the virtues of one combo burner to the virtues of another combo burner, or once the cooking container is evacuated from the virtues, the cooking container is returned to the virtues again. In addition, the temperature detecting means protruding upward from the upper end of the five virtues may interfere with the movement of the cooking container, and there is a problem that the usability is poor.

  The present invention solves the above-mentioned problem, and the temperature detection means (temperature detection device) for detecting the temperature of the cooking container does not interfere with the movement of the cooking container on the five virtues. The purpose is to provide an easy-to-use gas stove.

In order to achieve the above object, the gas stove of the present invention comprises:
A gas stove comprising a gas burner for heating a cooking container, five virtues on which the cooking container is placed, a temperature detection device for detecting the temperature of the cooking container, and a control means for controlling the heating power of the gas burner,
The temperature detection device is fixed to an arbitrary fixing portion of the gas stove and extends in a vertical direction, and is supported by the fixing side support member and configured to be movable up and down with respect to the fixing side support member. The moving side support cylinder and the upper end of the moving side support cylinder are arranged so as to always contact the bottom surface of the cooking container by moving up and down following the vertical movement of the cooking container. And a thermistor disposed on the lower surface side of the contact body in such a manner as to be thermally coupled to the contact body,
The lowered state of the temperature detecting device in which the moving side support cylinder is lowered and the upper surface of the contact body is located below the upper end of the virtues, and the upper side of the contact body is raised by moving the moving side support cylinder. Switching means for switching to the rising state of the temperature detection device located above the upper end of the virtues,
The moving side support cylinder is allowed to descend when the cooking container is placed on the virtues in the elevated state of the temperature detecting device.

In the gas stove of the present invention,
The switching means includes an urging means for urging the moving-side support cylinder supported by the fixed-side support member upward with respect to the fixed-side support member, and one end side fixed to the moving-side support cylinder. Winding the wire from the other end side, or feeding the wound wire, a take-up / feed-out part,
By winding the wire by the winding / unwinding part, the tension acting on the one end of the wire exceeds the urging force by the urging means, and the temperature detecting device is lowered,
By pulling out the wire wound by the winding / unwinding part, the tension acting on the one end of the wire is less than the biasing force by the biasing means, and the temperature detection device is in an elevated state,
When the cooking container is placed on the virtues in the rising state of the temperature detection device, the length of the wire located between the temperature detection device and the winding / feeding-out portion is the cooking container. It is preferable that the wire is allowed to be longer than the length of the wire when the wire is placed on the virtues and kept in an equilibrium state with no slack.

  In addition, when the length of the wire is longer than the length of the wire when kept in the equilibrium state, the wire positioned between the temperature detection device and the winding / feeding-out portion, It is preferable to provide tension applying means for applying tension in such a manner that the tension applied to one end is smaller than the urging force by the urging means.

In the gas stove of the present invention,
When the control means stops heating by the gas burner, it controls the winding / feeding-out unit so that the temperature detection device is in the lowered state,
When heating with the gas burner, when the cooking container is not placed on the virtues, the temperature detection device is in the raised state, and the cooking container is placed on the virtues In this case, it is preferable to control the winding / feeding-out portion so that the contact portion of the temperature detection device contacts the bottom surface of the cooking container.

  As described above, the present invention includes a temperature detection device, a stationary support member that is fixed to a gas stove and extends in the longitudinal direction, a movable support tube that is supported by the stationary support member and configured to be movable up and down, A contact body that is disposed at the upper end of the moving side support cylinder and is configured to always contact the bottom surface of the cooking container by moving up and down, and a thermistor disposed on the lower surface side of the contact body. In the gas stove, the lower side of the temperature detecting device in which the moving side support cylinder is lowered and the upper surface of the abutting body is located below the upper end of the virtues, Switching means for switching to a rising state of the temperature detecting device located above the upper end is provided, and when the cooking container is placed on the virtues in the rising state of the temperature detecting device, the moving side support cylinder is allowed to descend. Temperature detection because it is configured as The lowered position of the location, when moving the cooking vessel on the trivet, not that the temperature detector is in the way.

  In addition, when the cooking container is placed on the virtues, the moving side support cylinder is allowed to descend when the cooking container is placed on the virtues, so that the cooking containers are placed on the virtues. The contact body of the temperature detection device moves up and down following the vertical movement of the cooking container, and the contact state between the contact body and the bottom surface of the cooking container is maintained, so that the temperature of the cooking container is appropriately detected. be able to.

  Therefore, according to the present invention, it is possible to reliably detect the temperature of the cooking container, and when the cooking container is moved on the five virtues, the temperature detection device does not get in the way and is an easy-to-use gas stove. It becomes possible to provide.

  In the gas stove of the present invention, the urging means for urging the moving support cylinder supported by the fixed support member upward, the wire having one end fixed to the moving support cylinder, Winding-up / feeding-out section for winding up the end-side and winding-up wire, and winding up the wire by the winding-up / feeding-out section so that the tension acting on the one end is urging means The temperature detection device is lowered and lowered, and the wire is fed out by the take-up / feeding unit, so that the tension acting on one end of the wire is less than the biasing force by the biasing means, and the temperature detection device When the cooking container is placed on the virtues while the temperature detector is in the raised state, the coil is wound up and rolled up with the temperature detector. It is configured to allow the length of the wire positioned between the ridges to be longer than the length of the wire when the cooking container is placed on the virtues and kept in an equilibrium state without sagging In this case, the gas stove according to the present invention as described above can be obtained simply by configuring the wire with a wire having a small rigidity, and connecting the winding / feeding-out portion and the moving side support tube with the wire (the wire with a small rigidity). It becomes possible to configure without requiring a complicated configuration.

  Moreover, when the length of the wire becomes longer than the length of the wire when kept in the above-mentioned equilibrium state, it is added to one end of the wire positioned between the temperature detection device and the winding / feeding-out portion. When the configuration is provided with tension applying means for applying tension in such a manner that the tension is smaller than the urging force by the urging means, when the cooking container is placed on the virtues in the rising state of the temperature detecting device. The slack of the wire positioned between the temperature detection device and the winding / feeding-out portion is suppressed, and the reliability of the operation in the vertical direction of the temperature detection device can be improved.

  In addition, when the control means stops the heating by the gas burner, the winding / feeding unit is controlled so that the temperature detection device is in the lowered state, and when the heating by the gas burner is performed, the cooking container is placed on Gotoku. When the temperature detection device is not placed, the temperature detection device is in the rising state, and when the cooking container is placed on the virtues, the contact portion of the temperature detection device is in contact with the bottom surface of the cooking container, When configured to control the take-up / feed-out unit, the temperature detection device is lowered when heating by the gas burner is stopped, so that the temperature detection device does not interfere with the movement of the cooking container, and the gas burner. When heating is performed by the above, the temperature of the cooking container can be appropriately detected by the temperature detection device in contact with the bottom surface of the cooking container, and the present invention is further effectively realized. Door can be.

It is a perspective view which shows the external appearance structure of the gas stove concerning one Embodiment of this invention. It is a side view which shows the principal part structure in the fall state of the temperature detection apparatus of the gas stove concerning one Embodiment of this invention. It is a side view which shows the principal part structure in the raise state of the temperature detection apparatus of the gas stove concerning one Embodiment of this invention. It is a side view which shows the principal part structure in the state which mounted the cooking container on the temperature detection apparatus of the gas stove concerning one Embodiment of this invention. It is a figure which shows the flowchart of the temperature detection apparatus raising / lowering control subroutine of the gas stove concerning one Embodiment of this invention.

[Embodiment]
Hereinafter, the embodiment of the present invention will be shown and the features thereof will be described in more detail.

<Basic structure of cooking device>
FIG. 1 is a diagram showing an external configuration of a grill-equipped gas stove (drop-in stove) according to an embodiment of the present invention.

  As shown in FIG. 1, the gas stove A with a grill (hereinafter, also simply referred to as a gas stove) includes three stove burners (heating units) including a standard burner 1a, a high-heat burner 1b, and a small burner 1c. On the upper part of the plate, there are placed virtues 51 for receiving and supporting an object to be heated (cooked food) such as a pan with respect to the standard burner 1a, the high thermal power burner 1b, and the small burner 1c.

  The standard burner 1a includes a temperature detection device (temperature sensor) 9 including a thermistor for contacting the object to be heated (for example, the bottom of a pan as a cooking container) and detecting the temperature of the standard burner 1a. It is arrange | positioned so that the center may be penetrated. In addition, the standard burner 1a provided with this temperature detection device 9 can perform temperature control cooking such as cooking rice, boiling water, and deep-fried food.

  The grill section 4 is configured by providing a grill net that functions as a placement section for placing an object to be cooked such as a fish in a grill box formed in a box shape with an open front portion. . In the grill cabinet, one upper burner (not shown) and two lower burners (not shown) are disposed as heating units.

  Further, a manual operation unit 34 is provided on the front surface (front side surface) of the gas stove A to command ignition and extinguishing of the above-described stove burner and grill burner, heating power adjustment, and various settings.

The gas stove A includes a control unit (control means) (not shown) configured to execute various controls. The control unit (control unit) is configured to control the combustion state of the stove burner and the grill burner based on the command information commanded by the manual operation unit 34.
In addition, on the front surface of the gas stove A, there are provided a power switch 24 and a power lamp 25 of an automatic return type push operation type.

  The manual operation unit 34 includes three heating state adjustment units 21 (21a) for instructing ignition / extinguishing and thermal power adjustment to the respective burners (standard burner 1a, high-heat burner 1b, and small burner 1c). , 21b, 21c), an additional function operation / display unit 32 for a standard burner that performs operation and display of the temperature control function (boiling water, fried food, rice cooking) and timer function of the standard burner 1a, a grill burner (in particular, an upper burner not shown) A grill burner operation unit 22 for adjusting the heating power of the lower burner, an additional function operation / display unit 33 for the grill for instructing switching of the operation state of the grill burner, and the like are provided.

<Characteristic configuration>
Below, the characteristic structure of the gas stove A concerning embodiment of this invention is demonstrated.

  As shown in FIGS. 2 to 4, the temperature detection device 9 used in the gas stove A according to the embodiment of the present invention is fixed to a fixing portion (not shown) provided in the gas stove A and extends in the vertical direction. A side support member (fixed member) 11, a movable side support cylinder (movable cylinder) 12 supported so as to be vertically movable with respect to the fixed side support member (fixed member) 11, and an upper end of the movable side support cylinder 12 The contact body 13 is configured to always contact the bottom surface of the cooking container 40 by moving up and down following the vertical movement of the cooking container 40, and the lower surface side of the contact body 13 is contacted The thermistor 14 is provided so as to be thermally coupled to the body 13.

  Further, when the moving side support cylinder 12 is lowered and the upper surface of the contact body 13 is located below the upper end of the virtues 51, the temperature detecting device 9 is lowered (FIG. 2). There is provided switching means 15 for switching to a rising state (FIG. 3) of the temperature detecting device 9 in which the upper surface of the contact body 12 is located above the upper end of the virtues 51.

  In the gas stove A of this embodiment, the switching means 15 includes a stepping motor 16, a bobbin 17 driven (rotated) by the stepping motor 16, and a wire 19 (FIGS. 2, 3, and 4).

  The stepping motor 16 and the bobbin 17 driven (rotated) by the stepping motor 16 constitute a winding / feeding unit 20 that winds the wire 19 and feeds the wound wire 19.

  One end 19 a of the wire 19 is fixed to the movable support cylinder 12, and the other end 19 b is fixed to the bobbin 17. In this embodiment, a synthetic resin thread having a low rigidity is used as the wire 19.

  A thermistor lead wire 45 and a wire 19 are disposed inside the fixed side support member (fixed member) 11 and the movable side support tube (movable tube) 12. However, in FIGS. 2 to 4, the internal structures of the fixed-side support member (fixed member) 11 and the movable-side support cylinder (movable cylinder) 12 are shown in a simplified manner.

  As described above, the gas stove A of this embodiment is configured such that the wire 19 can be wound or fed by the winding / feeding unit 20 including the stepping motor 16 and the bobbin 17 as the switching unit 15. Mechanism is used.

  Then, the bobbin 17 constituting the winding / feeding-out unit 20 is rotated by the stepping motor 16 to wind the wire 19 or to feed the wound wire 19 to lower the temperature detecting device 9 (FIG. 2). Alternatively, it is configured to be in the raised state (FIG. 3).

  Further, in the gas stove A of this embodiment, as shown in FIGS. 2 to 4, the moving side support tube 12 is biased upward with respect to the fixed side support member 11 inside the moving side support tube 12. A coil spring 18 is disposed as a biasing means.

That is, in this gas stove A,
(A) When the bobbin 17 is rotated in a predetermined direction by the stepping motor 16 and the wire 19 is wound up, the tension acting on the one end 19a of the wire 19 exceeds the urging force by the urging means (coil spring) 18 and the temperature. The detection device 9 is in the lowered state (FIG. 2),
(B) When the bobbin 17 is rotated in the reverse direction by the stepping motor 16 and the wire 19 is fed out, the tension acting on the one end 19a of the wire 19 is less than the urging force of the urging means (coil spring) 18, and the temperature The detection device 9 is configured to be in the raised state (FIG. 3).

  Moreover, in the gas stove A of this embodiment, when the cooking container 40 is placed on the virtues 51 in the rising state of the temperature detection device 9 (FIG. 3), the temperature detection device 9 reaches the bobbin 17. The length of the wire is allowed to be longer than the distance between the temperature detection device 9 and the bobbin 17 (FIG. 4). That is, when the cooking container 40 is placed on the virtues 51 in the rising state of the temperature detection device 9 (FIG. 3) (FIG. 4), the wire 19 positioned between the temperature detection device 9 and the bobbin 17 It is configured to allow the length to be longer than the length of the wire when the cooking container 40 is placed on the virtues 51 and is kept in a state where there is no slack (equilibrium state) ( FIG. 4).

  On the other hand, the cooking container 40 is placed on the virtues 51, the moving side support cylinder (movable cylinder) 12 is lowered, and the length of the wire 19 positioned between the temperature detection device 9 and the bobbin 17. However, when the distance between the temperature detection device 9 and the bobbin 17 becomes longer than the distance (shortest path), the wire 19 positioned between the temperature detection device 9 and the bobbin 17 is prevented from sagging. A tension applying means 41 for applying necessary tension is provided (FIG. 4).

  That is, in this embodiment, tension is applied to the wire 19 so that the tension applied to the one end 19a of the wire 19 is smaller than the urging force by the urging means (coil spring) 18, and the wire 19 is slack. It is comprised so that it may prevent.

  The tension applied to the wire 19 by the tension applying means 41 is small, and the length of the wire 19 positioned between the temperature detection device 9 and the bobbin 17 is not longer than the distance between the temperature detection device 9 and the bobbin 17. Is configured so as not to displace the wire 19 located between the temperature detection device 9 and the bobbin 17 so that the moving support cylinder 12 does not descend with the tension applied to the wire 19 by the tension applying means 41. It is configured (FIG. 3).

  Further, in the gas stove A of this embodiment, the control means controls the stepping motor 16 constituting the winding / feeding-out unit 20 so that the temperature detecting device 9 is in the lowered state when the heating by the gas burner is stopped. When heating by the gas burner, when the cooking container 40 is not placed on the virtues 51, the stepping motor 16 that constitutes the winding / feeding unit 20 so that the temperature detection device 9 is in the raised state is provided. When the cooking container 40 is placed on the virtues 51, the contact portion 13 of the temperature detecting device 9 is applied to the bottom surface of the cooking container 40 with an appropriate pressing force by the urging force of the coil spring 18. The stepping motor 16 is controlled so as to come into contact (the winding / feeding unit 20 is controlled).

  In the gas stove A of this embodiment configured as described above, when the temperature detection device 9 is in the lowered state, the temperature detection device 9 moves the cooking vessel 40 when the cooking vessel 40 is moved on the virtues 51. It will not get in the way. Moreover, in the raised state of the temperature detection device 9, when the cooking container 40 is placed on the virtues 51, the moving-side support cylinder 12 is allowed to descend, and the cooking container 40 is placed on the virtues 51. Since the contact body 13 can move up and down following the upper and lower positions of the lower surface of the cooking container 40, the temperature detection device 9 can reliably detect the temperature of the cooking container 40.

  Further, when configured as described above, it is possible to easily configure the switching means 15 without requiring complicated parts or the like by simply connecting the bobbin 17 and the moving support cylinder 12 with the wire 19. Thus, an increase in cost can be suppressed.

  Further, in the gas stove A of this embodiment, since the tension applying means 41 for applying the tension necessary to prevent the wire 19 from sagging is provided, the cooking container is in the raised state of the temperature detecting device 9. When the 40 is placed on the virtues 51, the sag of the wire 19 positioned between the temperature detection device 9 and the bobbin 17 is suppressed, and the reliability of the operation of the temperature detection device 9 is improved. It becomes possible.

  More specifically, the microcomputer provided in the control means of the gas stove A repeatedly executes a control subroutine related to raising and lowering of the temperature detecting device 9 at a predetermined cycle (for example, once every 0.05 seconds) in the main routine. It is configured.

  Hereinafter, the elevation control subroutine (temperature detection device elevation control subroutine) of the temperature detection device 9 will be described in detail with reference to FIG.

  As shown in FIG. 5, when the control means executes the temperature detection device elevation control subroutine, it first determines whether or not an ignition operation has been performed in # 001.

  When the ignition operation is performed (# 001), the stepping motor (motor) is rotated in the wire feeding direction (# 002) and driven by a predetermined number of pulses (# 003), and the stepping motor (motor) is stopped. (# 004), the temperature detecting device elevation control subroutine is terminated and the process returns to the main routine.

  If it is determined in # 001 that there is no ignition operation, the process proceeds to # 005 to determine whether or not a fire extinguishing operation has been performed.

  When there is a fire extinguishing operation, the stepping motor is rotated in the wire winding direction (# 006), driven by a predetermined number of pulses (# 007), and the stepping motor (motor) is stopped (# 008). The temperature detection device elevation control subroutine ends and the process returns to the main routine.

  As described above, in the gas stove A of the present embodiment, the control means controls the stepping motor so that the temperature detecting device is lowered when the heating by the gas burner is stopped, and when the heating by the gas burner is performed. The stepping motor is controlled so that the temperature detecting device is in the rising state.

  Therefore, when the heating by the gas burner is stopped, the temperature detection device does not get in the way, and when the heating by the gas burner is performed, the temperature detection device can appropriately detect the temperature of the cooking container.

  In this embodiment, the winding / feeding unit 20 is configured by the stepping motor 16 and the bobbin 17. However, the winding / feeding unit 20 is not limited to this, and driving means other than the stepping motor (for example, A gear motor or the like) and a bobbin are also possible.

  In this embodiment, a drop-in stove has been described as an example, but the present invention can also be applied to a table stove.

  In other respects, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

1a Standard burner 1b High thermal power burner 1c Small burner 4 Grill part 9 Temperature detector (temperature sensor)
11 Fixed support member (fixed member)
12 Moving support cylinder (movable cylinder)
13 Contact body 14 Thermistor 15 Switching means 16 Stepping motor 17 Bobbin 18 Coil spring (biasing means)
DESCRIPTION OF SYMBOLS 19 Wire 19a One end of wire 19b The other end of wire 20 Winding and unwinding part 21 (21a, 21b, 21c) Heating state adjustment part 22 Grill burner operation part 24 Power switch 25 Power lamp 32 Additional function operation and display part for standard burners 33 Additional Function Operation / Display Unit for Grill 34 Manual Operation Unit 40 Cooking Container 41 Tension Applying Means 45 Thermistor Lead Wire 51 Gotoku A Gas Stove

Claims (4)

A gas stove comprising a gas burner for heating a cooking container, five virtues on which the cooking container is placed, a temperature detection device for detecting the temperature of the cooking container, and a control means for controlling the heating power of the gas burner,
The temperature detection device is fixed to an arbitrary fixing portion of the gas stove and extends in a vertical direction, and is supported by the fixing side support member and configured to be movable up and down with respect to the fixing side support member. The moving side support cylinder and the upper end of the moving side support cylinder are arranged so as to always contact the bottom surface of the cooking container by moving up and down following the vertical movement of the cooking container. And a thermistor disposed on the lower surface side of the contact body in such a manner as to be thermally coupled to the contact body,
The lowered state of the temperature detecting device in which the moving side support cylinder is lowered and the upper surface of the contact body is located below the upper end of the virtues, and the upper side of the contact body is raised by moving the moving side support cylinder. Switching means for switching to the rising state of the temperature detection device located above the upper end of the virtues,
A gas stove configured to allow the moving-side support cylinder to be lowered when the cooking container is placed on the virtues in the rising state of the temperature detection device. The switching means includes an urging means for urging the moving-side support cylinder supported by the fixed-side support member upward with respect to the fixed-side support member, and one end side fixed to the moving-side support cylinder. Winding the wire from the other end side, or feeding the wound wire, a take-up / feed-out part,
By winding the wire by the winding / unwinding part, the tension acting on the one end of the wire exceeds the urging force by the urging means, and the temperature detecting device is lowered,
By pulling out the wire wound by the winding / unwinding part, the tension acting on the one end of the wire is less than the biasing force by the biasing means, and the temperature detection device is in an elevated state,
When the cooking container is placed on the virtues in the rising state of the temperature detection device, the length of the wire located between the temperature detection device and the winding / feeding-out portion is the cooking container. 2. It is configured to allow the wire to be longer than the length of the wire when the wire is placed on the five virtues and kept in an equilibrium state without sagging. Gas stove. When the length of the wire is longer than the length of the wire when kept in the equilibrium state, the wire positioned between the temperature detection device and the winding / feeding-out portion is connected to the one end. The gas stove according to claim 2, further comprising tension applying means for applying tension in such a manner that applied tension is smaller than an urging force by the urging means. When the control means stops heating by the gas burner, it controls the winding / feeding-out unit so that the temperature detection device is in the lowered state,
When heating with the gas burner, when the cooking container is not placed on the virtues, the temperature detection device is in the raised state, and the cooking container is placed on the virtues The gas stove according to any one of claims 1 to 3, wherein the winding / feeding-out part is controlled so that the contact part of the temperature detecting device contacts the bottom surface of the cooking container. .

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