JP6998990B2 - Gas stove - Google Patents

Description

The present invention relates to a gas stove, and more particularly to a gas stove having a function of preventing inadvertent ignition.

The gas stove has two front side stove burners on the left and right sides of the front side (closer to the user) of the top plate that covers the upper part of the gas stove body, and two rear side stove burners in the center of the rear side of the top plate. While one stove burner in total of three is arranged, there is one equipped with a grill burner in the grill storage arranged in the central part in the left-right direction of the gas stove main body.

As such a gas stove, for example, as shown in Patent Document 1, a point fire extinguishing button as four point fire extinguishing operation tools for point extinguishing each of the three stove burners and the grill burner is provided, and the front opening of the grill storage is provided. There are two grill doors on the left and right sides of the grill door that opens and close, that is, one pair. Each point fire extinguishing button has a front end side portion protruding toward the front side of the gas stove main body, and this protruding front end side portion can be pushed and operated as an operation portion.

In this gas stove, a pair of point fire extinguishing buttons on the left and right sides of the grill door, that is, two point fire extinguishing buttons are arranged adjacent to each other along the left-right direction (horizontal width direction) of the gas stove body, and the adjacent 2 points. Between the two point fire extinguishing buttons, an intermediate member having the same shape as the front end side portion of the point fire extinguishing button and projecting to the front side is arranged like the point fire extinguishing button. This intermediate member cannot move in the same direction as the operation direction of the point fire extinguishing button, and cannot be pressed like the point fire extinguishing button.

Japanese Unexamined Patent Publication No. 2014-0443030

In Patent Document 1, as described above, a push operation having a pair of point fire extinguishing buttons, that is, a portion having the same shape as the front end side portion serving as the operation portion of the point fire extinguishing button between two adjacent point fire extinguishing buttons. Since the impossible intermediate member is arranged, when the user presses and operates one of the two point fire extinguishing buttons, the finger accidentally protrudes from one point fire extinguishing button to the other side. Even if there is such a thing, since the intermediate member is present, the pressing operation of one point fire extinguishing button does not extend to the other point fire extinguishing button, and the other point fire extinguishing button is unintentionally pressed. Can be avoided.

However, a part of the user's body carelessly touches the point fire extinguishing button on the front surface of the gas stove body and pushes the stove, and the stove burner may unintentionally ignite.

In particular, it is not desirable that the front stove burner located on the front side of the top plate, which is closer to the user, ignites unintentionally and the user is surprised, and improvement is desired. ..

The present invention has been made in view of the above points, and ensures that a part of the user's body does not hit the point fire extinguishing operation tool and is unintentionally ignited. The purpose.

In order to achieve the above object, the present invention is configured as follows.

(1) The gas stove of the present invention has a stove burner facing from an opening provided in the upper plate of the gas stove main body and a point fire extinguishing operation tool provided in the gas stove main body and manually operated for extinguishing the fire of the stove. It is a gas stove equipped with
At the lock position, the point fire extinguishing operation tool in the fire extinguishing position is prevented from moving in the ignition direction, and at the unlock position, the lock portion that allows the point fire extinguishing operation tool at the fire extinguishing position to move in the ignition direction. The lock portion is provided with a lock release portion that switches the lock portion from the lock position to the lock release position, and the lock release portion has a standby position for positioning the lock portion at the lock position and a lock portion for the lock release position. It has an operating body that can be moved to the release execution position to be positioned at, and is manually operated to move from the standby position to the release execution position, and is accompanied by the movement of the point fire extinguishing operation tool in the ignition direction. After the control burner is ignited, the operating body of the unlocking portion is not manually operated, and is released in conjunction with the return operation from the burning position to the fire extinguishing position of the point fire extinguishing operation tool. After returning from the execution position to the standby position, the lock portion is positioned from the unlock position to the lock position.

According to the present invention, after the control burner is ignited with the movement of the point fire extinguishing operation tool in the ignition direction, the operating body of the unlocking unit is not manually operated, and the combustion position of the point fire extinguishing operation tool is not performed. In conjunction with the return operation from the fire extinguishing position to the fire extinguishing position, the lock portion is returned to the standby position where the lock portion is positioned at the lock position, and the lock portion is positioned from the unlock position to the lock position. When in the fire extinguishing position, the lock part is in the lock position to prevent the point fire extinguishing operation tool from moving in the ignition direction, and a part of the user's body hits the point fire extinguishing operation tool to ignite unintentionally. It is surely prevented that the fire extinguishing is done. It also functions effectively as a child lock that you will never forget to lock.

(2) In a preferred embodiment of the present invention, a plurality of the lock portions individually corresponding to a plurality of point fire extinguishing operating tools deployed in close proximity are integrally formed, and the plurality of lock portions are moved from the lock position. A single unlocking unit that switches to the unlocked position.
According to this embodiment, when a plurality of stove burners are used, the unlocking operation is reduced and the handling property is excellent. Further, since the number of locking portions and unlocking portions is smaller than the number of point fire extinguishing operating tools, it is effective in reducing the manufacturing cost.

According to the present invention, in the fire extinguishing state, the point fire extinguishing operation tool is in a locked state in which movement in the ignition direction is blocked, so that a part of the user's body hits the point fire extinguishing operation tool and the ignition operation is unintentionally performed. It is possible to surely prevent it from being done.

It is an overall perspective view of the gas stove which concerns on one Embodiment of this invention. It is a perspective view of the point fire extinguishing operation part. It is a partial notch side view which shows a gas valve block and a point fire extinguishing operation part. It is a gas supply route diagram. It is a schematic plan view which shows the operation of the position holding mechanism for a valve, (A) shows a fire extinguishing state, (B) shows an ignition state, (C) shows a combustion state. It is a perspective view of a gas valve block and a point fire extinguishing operation part in a fire extinguishing state. It is a perspective view of a gas valve block and a point fire extinguishing operation part in an unlocked state. It is a perspective view of a gas valve block and a point fire extinguishing operation part in an ignition state. It is a perspective view of a gas valve block and a point fire extinguishing operation part in a combustion state. It is a perspective view of a lock mechanism. It is a vertical sectional side view which shows the lock mechanism and the lock position holding mechanism in a fire extinguishing state. It is a vertical sectional side view which shows the operation of a lock mechanism, (A) is a fire extinguishing state, (A') is an unlocking execution state, (B) is an ignition state, (C) is a combustion state. It is a schematic plan view which shows the operation of the lock position holding mechanism, (A) shows the fire extinguishing state, (B) shows the ignition state, (C) shows the combustion state. It is a schematic plan view which shows the operation of the lock position holding mechanism of another embodiment, (A) is a fire extinguishing state, (A') is an unlocking execution state, (B) is an ignition state, (C) is a combustion state. Shows. It is a vertical sectional side view for demonstrating the relationship of the urging force of the spring of another embodiment. It is a schematic plan view which shows the operation of the lock position holding mechanism of another embodiment.

Hereinafter, the gas stove according to the embodiment of the present invention will be described with reference to the attached drawings. As a gas stove according to an embodiment of the present invention, a built-in type gas stove 1 provided with a stove portion and a grill will be described with reference to the accompanying drawings.

As shown in FIG. 1, the top plate 2 constituting the top surface portion of the gas stove 1 is provided with three stove portions 3. Each stove unit 3 is provided with a stove burner 4 having a different thermal power, a discharge type ignition device 5 and an ignition detection device 6, and further, the upper surface of the top plate 2 corresponds to each stove unit 3. Gotoku 7 is listed. In this example, the left and right stove burners 4 on the front side (closer to the user) of the top plate 2 are high heat burners 4, and the central stove burners 4 on the rear side are small heat burners.

The gas stove 1 is provided with a grill 8. The grill 8 includes a grill storage formed in the central portion of the main body of the gas stove 1, a grill burner (not shown) provided in the grill storage, and an ignition device and an ignition detection device (not shown). The front end of the grill 8 is open to the front surface of the gas stove 1 and is closed by the grill door 9 so as to be openable and closable.

As the ignition device 5, a well-known structure is adopted in which a spark plug provided at a fuel gas discharge port in a stove burner and a grill burner is discharged to ignite by a high-pressure pulse generated by an igniter. Further, as the ignition detection device 6, a well-known structure that detects an ignition state by using a thermocouple in which a thermoelectromotive force is generated by the heat of a flame is adopted.

A front panel 11 is provided on the front surface of the gas stove 1. Two point fire extinguishing buttons (point fire extinguishing operation tools) 12 for igniting and extinguishing the front left side stove burner 4 and the rear center side stove burner 4 are provided side by side on the upper left side of the front panel 11. On the upper right side of the front panel 11, a stove burner 4 and a grill burner on the front right side are provided side by side with two point fire extinguishing buttons (point fire extinguishing operation tools) 12 for igniting and extinguishing a fire.

As shown in FIG. 2, an intermediate member 10 having the same shape as the operation portion of the point fire extinguishing button 12 and which cannot be pushed in is arranged between the two point fire extinguishing buttons 12 and 12 arranged adjacent to each other. Even if the user accidentally pushes one of the two point fire extinguishing buttons 12, 12 into the point fire extinguishing button 12, the finger may protrude from one point fire extinguishing button 12 to the other side. Since the intermediate member 10 is present, the pushing operation of one point fire extinguishing button 12 does not reach the other point fire extinguishing button 12, and the other point fire extinguishing button 12 is prevented from being unintentionally pushed in. can do.

Above each point fire extinguishing button 12, a thermal power adjusting lever 13 is provided so as to be movable left and right in order to adjust the amount of gas supplied to each burner to adjust the thermal power.

Further, in the lower part on the left side of the front panel 11, a battery case 14 for accommodating a battery as a power source such as a built-in control unit is provided.

On the back of each point fire extinguishing button 12, a gas valve block 15 having the same specifications for supplying fuel gas to the stove burner 4 of the gas stove 1 or the grill burner is provided. FIG. 3 is a partially cutaway side view showing the gas valve block 15 and the point fire extinguishing operation unit, and FIG. 4 is a gas supply system diagram of the gas valve block 15.

As shown in FIGS. 3 and 4, the gas valve block 15 includes a solenoid opening / closing safety valve 16, a main valve 17, and first and second latch type solenoid valves 18a and 18b used for switching between large heat and small heat. , And a flow rate adjusting valve 19 for adjusting the thermal power is incorporated. In the gas valve block 15, the fuel gas flowing in from the gas inflow port 20 passes through the safety valve 16, the main valve 17, the first and second latch type solenoid valves 18a and 18b, and the flow control valve 19, and the gas outflow port 21. It is sent from and supplied to the stove burner 4 (or the grill burner).

The safety valve 16 is maintained in an open state by a control unit (not shown) only when a flame is detected by the ignition detection device 6, and when the flame is no longer detected, the control unit stops maintaining the open state and closes the safety valve 16. Will be done. As a result, the outflow of fuel gas is prevented when the flame of the ignition detection device 6 is no longer detected due to spillage or extinction due to wind.

As shown in FIG. 3, a support case 24 is connected and fixed to the front portion of the gas valve block 15. The support case 24 is equipped with a slider 25 that operates in conjunction with the point fire extinguishing button 12 so as to be slidable in the front-rear direction, and is incorporated by being slid-forced by a spring 26 toward the front. Then, at the rear end of the slider 25, the front end of the valve rod 17a in the main valve 17 is arranged so as to butt and face each other. As the slider 25 moves backward, the valve rod 17a comes into contact with the rear end of the slider 25 and is pressed and displaced rearward against the spring-forced force to open the main valve 17. On the contrary, as the slider 25 in the rear position moves forward, the valve rod 17a moves forward following the displacement of the slider 25, and the slider 25 moves forward beyond a certain position, so that the valve rod 17a is in an open state. The main valve 17 of the above is urged and pressed against the valve seat so as to be closed. Although not shown in FIG. 3, a safety valve 16 is provided at the rear end of the valve rod 17a.
The valve rod 17a is pressed and displaced rearward to open the main valve 17 and the safety valve 16.

FIG. 3 shows a state in which the slider 25 is in the frontmost “fire extinguishing position” (a). In this state, the rear end of the slider 25 and the front end of the valve rod 17a of the main valve 17 in the closed state are shown. A small gap is formed between the two. This small gap is a "play stroke" when the slider 25 moves backward, which is the ignition operation direction.

The two adjacent point fire extinguishing buttons 12 are pivotally supported by a fixed support frame 27 arranged and fixed at the front portion of the gas stove 1 so as to be freely swingable in the front-rear direction around the upper end fulcrum p. The operation unit 12b provided on the back surface of each point fire extinguishing button 12 is abutted and supported by the front end of the slider 25 protruding from each gas valve block 15. Therefore, by pushing the point fire extinguishing button 12 backward, the slider 25 is moved backward against the spring 26, and the main valve 17 is opened and operated. The point fire extinguishing button 12 may be urged backward by using a spring as described later.

As shown in FIG. 3, the slider 25 has a frontmost “fire extinguishing position” (a) and a rearmost “ignition position” by a push-push type valve position holding mechanism 30 provided at the bottom of the gas valve block 15. "(B) and the" combustion position "(c) in the middle can be switched and held.

That is, as shown in FIG. 3, the valve position holding mechanism 30 includes a cam body 31 integrally connected to the slider 25 and a restraining member 32 formed by refracting the spring wire. The check member 32 is supported on the rear portion of the support case 24 so as to be rotatable only laterally around the rear end portion.

As shown in FIG. 5, a laterally substantially heart-shaped loop-shaped groove cam 33 is formed on the lower surface of the cam body 31, and a follow pin portion 32a bent and formed at the front end of the restraint member 32 is formed on the groove cam 33. Elastically engaged.

Then, as shown in FIG. 5A, when the slider 25 is in the "fire extinguishing position" (a) protruding forward, the follow pin portion 32a is in the rear fire extinguishing position (e) in the groove cam 33. By pushing the point fire extinguishing button 12 (pushing), the slider 25 is moved from the "fire extinguishing position" (a) against the spring force to the rear "ignition position" (b) as shown in FIG. 5 (B). ), The follow pin portion 32a located at the rear end of the groove cam 33 moves forward relative to the cam body 31, and the groove cam 33 shown in FIG. 5 (A). It is guided to the ignition position (f) via the first path L1.

When the slider 25 moves to the "ignition position" (b), the valve rod 17a follows and moves, the main valve 17 is opened, and the safety valve 16 is opened. Further, the instrument plug switch (not shown) is turned on, the power supply to the control unit is started, the control unit starts operating, and the igniter switch (not shown) is turned on, so that the control unit is in the first and second positions. The latch type solenoid valves 18a and 18b are opened to supply fuel gas to the burner 4, and the ignition device 5 is operated to perform an ignition operation. When the ignition detection device 6 detects the ignition of the burner 4 by the ignition operation, the control unit keeps the safety valve 16 in the open state and continues the combustion of the stove burner 4.

After the ignition operation, when the hand is released from the point fire extinguishing button 12 and the pushing operation is released, the slider 25 returns and moves forward from the "ignition position" (b) by the force of the spring. At this time, as shown in FIG. 5C, the follow pin portion 32a is abutted and guided to the first step d1 formed at the bottom of the groove cam 33, and the second path is not returned to the first path L1. It is guided to L2 and is stably held at the combustion position (g) at the rear end of the second path L2. When the slider 25 is in the "combustion position", the main valve 17 is still sufficiently separated from the valve seat, fuel gas is continuously supplied, and the stove burner 4 is continuously maintained in the combustion state. To.

When heating is started by pressing the point fire extinguishing button 12 in this way, a desired thermal power can be obtained by operating the thermal power adjusting lever 13.

When extinguishing a fire, first, the point fire extinguishing button 12 is pushed to the limit again, and then the pushing operation is released. In this case, the slider 25 moves rearward from the "combustion position" (c) shown in FIG. 5 (C) with the pushing operation of the point fire extinguishing button 12, but is formed at the bottom of the second route L2. Due to the second step d2, the follow pin portion 32a is guided to the third path L3 without returning to the second path L2 and moves relatively forward. Here, the front end of the third path L3 is set to a position where the slider 25 does not reach the "ignition position" (b), and the discharge ignition operation is not performed unnecessarily.

Next, when the operation of the point fire extinguishing button 12 is released, the slider 25 returns to the front "fire extinguishing position" (a) by spring urging, and at this time, it is formed at the bottom of the third route L3. By the third step d3, the follow pin portion 32a is guided to the fourth route L4 without returning to the third route L3 and reaches the original “fire extinguishing position” (e). A fourth step d4 is also formed on the rear bottom surface of the fourth route L4, and when the slider 25 is moved rearward from the "fire extinguishing position" (a), the follow pin portion 32a becomes the fourth step d4. It is guided to the first route L1 correctly without entering the fourth route L4.

When the slider 25 returns to the front "fire extinguishing position" (a) as described above, the main valve 17 is closed and the stove burner 4 is extinguished. Then, when the sliders 25 of all the point fire extinguishing buttons 12 including the grill are set to the "fire extinguishing position" (a), all the main valves 17 of each stove burner 4 are closed and the fire is extinguished, and all of each stove burner 4 are extinguished. The instrument plug switch is turned off, the safety valve 16 of each stove burner 4 is closed, and the first and second latch type solenoid valves 18a and 18b are closed. Further, the control unit stops the output of the power supply holding signal for holding the power supply state of the control unit, thereby ending the power supply to the control unit.

The above configuration is basically the same as the conventional structure. In the present invention, a part of the user's body hits the point fire extinguishing button 12, the point fire extinguishing button 12 is pushed in, and the stove burner 4 is inadvertently ignited. The following structure is provided to prevent the fire from being damaged.

FIG. 6 is a perspective view of the gas valve block 15 and the point fire extinguishing operation unit in the fire extinguishing state, FIG. 7 is a perspective view of the gas valve block 15 and the point fire extinguishing operation unit in the unlocked state, and FIG. 8 is an ignition. FIG. 9 is a perspective view of the gas valve block 15 and the point fire extinguishing operation unit in the state, and FIG. 9 is a perspective view of the gas valve block 15 and the point fire extinguishing operation unit in the combustion state.

As shown in FIGS. 3 and 6 to 9, the operation of the point fire extinguishing button 12 at the “fire extinguishing position” in the pushing direction is restrained and prevented below the back of the fixed support frame 27 to which the point fire extinguishing button 12 is mounted. The lock mechanism 40 is arranged in the center behind the two adjacent point fire extinguishing buttons 12.

FIG. 10 is a perspective view of the lock mechanism 40. As shown in FIGS. 3 and 10, the lock mechanism 40 includes a lock body 41 that is vertically displaced so as to move in and out of the lower end movement path of the point fire extinguishing button 12, and the lower end of the lock body 41 in the point fire extinguishing button 12. An operating body 42 for unlocking is provided so as to retract below the movement path.

A support arm 43 made of a leaf spring material is connected and supported on the lower surface of the rear portion of the fixed support frame 27 in a forward cantilever shape, and the lock body 41 is connected to the upper surface of the front end of the support arm 43.

A pair of left and right restraint portions 44 are erected on the lock body 41 constituting the lock portion, corresponding to two adjacent point fire extinguishing buttons 12. Each check unit 44 faces the lateral rib 12c provided at the lower end of the point fire extinguishing button 12, as shown in FIG. 6 and FIG. 12A showing the operation of the lock mechanism 40. That is, as shown in FIGS. 3, 6 and 12 (A), when the support arm 43 is in the free state, the lock body 41 is in the locked position at the upper position, and the restraining portion 44 projects upward. Then, it advances to the movement path of the lateral rib 12c of the point fire extinguishing button 12, and a locked state is brought in which the push-in movement of the point fire extinguishing button 12 from the "fire extinguishing position" is prevented from contacting.

Further, as shown in FIGS. 7 and 12 (A'), when the support arm 43 is curved and deformed downward and the lock body 41 moves downward, the restraint portion 44 moves the lateral rib 12c of the point fire extinguishing button 12. The lock release position is retracted downward from the fire extinguishing position, and the point fire extinguishing button 12 is brought into an unlocked state that allows pushing movement from the "fire extinguishing position".

The unlocking operating body 42 is slidably mounted back and forth on the fixed support frame 27, and its front end portion projects forward from the front panel 11 below between two adjacent point fire extinguishing buttons 12. Is deployed. An inclined cam 45a and a straight cam 45b are formed in a stepped shape on the lower surface of the operating body 42. As shown in FIG. 12A, in a state where the operating body 42 is in a standby position that greatly protrudes forward from the front panel 11, the contact portion 41a provided on the lock body 41 is located behind the inclined cam 45a. Then, the lock body 41 is in the upper lock position. Then, as shown in FIG. 12A, when the operating body 42 is pushed backward by the user, the contact portion 41a is guided by the inclined cam 45a and pushed down, thereby urging the locking means. The lock body 41 is displaced downward while bending and deforming the support arm 43. When the pushed operating body 42 reaches the release execution position, the contact portion 41a rides on the straight cam 45b, and thereafter, the lock body 41 is constantly unlocked regardless of the backward movement of the operating body 42. Maintained in position.

The lock mechanism 40 can be unlocked by manually pushing the operating body 42 constituting the unlocked portion backward, and at the same time, the point fire extinguishing button 12 is returned to the "fire extinguishing position". It is linked with the point fire extinguishing button 12 as follows so that the unlocked state is automatically reset to the locked state.

That is, as shown in FIG. 11, the operating body 42 is interlocked and connected to the push-push type locking position holding mechanism 50 having the same structure as the valve position holding mechanism 30 described above. The lock position holding mechanism 50 is supported by a cam body 52 that moves back and forth integrally with the operating body 42 and is slid forward by a spring 51 as a return urging means, and that can be slid back and forth. A support case 53 is provided, and a restraining member 54 formed by refracting a spring wire is provided. The support case 53 is connected and fixed to the fixed support frame 27 by tightening screws or the like.

The restraining member 54 is supported on the rear portion of the support case 53 so as to be rotatable only laterally around the rear end portion. Further, as shown in FIG. 13, a laterally substantially heart-shaped groove cam 55 is formed on the lower surface of the cam body 52, and a follow pin portion 54a bent and formed at the front end of the restraint member 54 is formed on the groove cam 55. Elastically engaged.

Further, as shown in FIGS. 3, 8, and 10, the upper surface of the operating body 42 is provided with a reset protrusion 56 for linking the lock position holding mechanism 50 and the point fire extinguishing button 12. The reset protrusion 56 is formed in a T shape so as to face each of the vertical rib-shaped contact portions 12a extending from the lower ends of the two adjacent point fire extinguishing buttons 12.

Next, the operation of the lock mechanism 40 and the lock position holding mechanism 50 will be described.

When the point fire extinguishing button 12 is in a fire extinguishing position that greatly protrudes forward and the operating body 42 protrudes forward, as shown in FIG. 13A, the follow pin portion 54a of the locking position holding mechanism 50 has a groove. It is in the standby position (h) at the rear end of the cam 55. From this state, when the operating body 42 is pushed backward and the cam body 52 is moved backward against the spring-loaded force, the follow pin located at the standby position (h) of the groove cam 55. The portion 54a moves forward relative to the cam body 52 and is guided to the first path R1 of the groove cam 55. Further, as described above, the lock body 41 is displaced downward as the operation body 42 is pushed in, and the lock body 41 is in the unlocked state.

When the follow pin portion 54a is positioned at the intermediate position (i) of the first path R1 by pushing the operating body 42 and the point fire extinguishing button 12 is pushed in that state to perform the above ignition operation, FIG. As shown in FIG. 8, the contact portion 12a of the point fire extinguishing button 12 that moves largely backward abuts on the reset projection 56 of the operating body 42 from the front, and the operating body 42 and the cam body 52 are shown in FIG. As shown, it is pulled backward and moved against the spring force, and as shown in FIG. 13B, the follow pin portion 54a moves further forward relative to the cam body 52, and FIG. 13 It moves to the first turn-back position (j) of the front portion in the first route R1 shown in (A).

After pushing the point fire extinguishing button 12 to the "ignition position" to perform the ignition operation, when the pushing operation is released and the point fire extinguishing button 12 is returned to the "burning position", as shown in FIG. 9, the point fire extinguishing button 12 Following the return movement to the front, the operating body 42 and the cam body 52 move forward by the spring urging force. At this time, the follow pin portion 54a is guided to the second route R2 without returning to the first route R1 by the first step s1 formed at the bottom of the first route R1, as shown in FIG. 13 (C). In addition, it is held at the stable position (k) at the rear end of the second route R2.

When the point fire extinguishing button 12 is pushed in again for the fire extinguishing operation, first, the contact portion 12a of the point fire extinguishing button 12 that moves largely rearward abuts on the reset projection 56 of the operating body 42 from the front, and the operating body The 42 and the cam body 52 are moved backward against the spring force, and the follow pin portion 54a moves forward relative to the cam body 52. At this time, the follow pin portion 54a is guided to the third route R3 without returning to the second route R2 by the second step s2 formed at the bottom of the second route R2, and is brought to the second turning position (m). To reach.

Next, when the point fire extinguishing button 12 is released, the operating body 42 and the cam body 52 spring-urged forward move forward. At this time, the follow pin portion 54a is guided to the fourth route R4 without returning to the third route R3 by the third step s3 formed at the bottom of the third route R3, and returns to the original standby position (h). Return. A fourth step s4 is also formed on the rear bottom surface of the fourth route R4, and when the operating body 42 is manually pushed in to move the cam body 52 rearward, the follow pin portion 54a becomes the first. The contact is guided to the four steps s4 so that the vehicle is correctly guided to the first route R1 without entering the fourth route R4.

Then, the operating body 42 and the cam body 52 move forward and return to the original standby position, so that the locked body 41 returns and moves upward, and the locked state is automatically brought about. That is, the lock mechanism 40 is automatically reset to the locked state in conjunction with the operation of the point fire extinguishing button 12 returning to the "fire extinguishing position".

As described above, according to the present embodiment, when the point fire extinguishing button 12 is in the fire extinguishing position, the point fire extinguishing button 12 is always in a locked state in which the movement of the point fire extinguishing button 12 in the ignition direction is blocked. It is surely prevented that the ignition is unintentionally made by hitting a part of the fire extinguishing button 12 or the like. It also functions effectively as a child lock that you will never forget to lock.

The present invention can also be carried out in the following forms.

In the above embodiment, the operation body 42 is pushed in by a finger to release the lock, and the point fire extinguishing button 12 is pushed in to perform the ignition operation. However, by modifying the cam body 52, the operating body 42 is pushed in. It is also possible to perform the ignition operation by immediately releasing the finger from the operating body 42 and pressing the point fire extinguishing button 12 after the operation and the unlocking are executed.

That is, as shown in FIG. 14, the groove cam 55 of the locking position holding mechanism 50 is deformed. According to this, when the operating body 42 is pushed to the limit and the fingers are released, the cam body 52 is once moved backward against the spring-forced force, and then returns to the front by the spring-forced force. As shown in FIG. 14A, the follow pin portion 54a in the standby position (h) is guided by the first step s1 after shifting to the first turn-back position (j1) via the first path R1. It is guided to the second route R2 and reaches the first holding position (k1) at the rear end to be stably held. As a result, the unlocked state is maintained.

Next, when the point fire extinguishing button 12 is pushed greatly to the "ignition position" for burner ignition, the contact portion 12a of the point fire extinguishing button 12 that moves greatly backward is attached to the reset projection 56 of the operating body 42 from the front. Upon contact, the operating body 42 and the cam body 52 are further moved rearward against the spring-forced force. Along with this, the follow pin portion 54a moves further forward relative to the cam body 52, and the follow pin portion 54a at the first holding position (k1) is at the second turn-back position (2) via the third route R3. In conjunction with the transition to j2) and the point fire extinguishing button 12 returning from the "ignition position" to the "combustion position", the follow pin portion 54a is guided by the third step s3 and guided to the fourth route R4. Then, it is stably held at the second holding position (k2) at the rear end.

After pushing the point fire extinguishing button 12 greatly to extinguish the fire, if the pushing operation is released and the point fire extinguishing button 12 is returned to the "fire extinguishing position", the operation accompanies the movement of the point fire extinguishing button 12 to the rear. The body 42 and the cam body 52 are abutted and moved backward through the reset projection 56, and then returned and moved forward by the spring-forced force. At this time, as the point fire extinguishing button 12 moves backward from the "combustion position", the follow pin portion 54a at the second holding position (k2) is guided by the fourth step s4 to the fifth path R5. It is guided and shifts to the third turning position (j3) at the front end thereof. After that, in conjunction with the large return movement of the point fire extinguishing button 12 to the "fire extinguishing position", the follow pin portion 54a is guided by the fifth step s5 and guided to the sixth route R6, and is guided to the original standby position (h). ) To return and move. As a result, the lock mechanism 40 is locked again.

Not limited to the embodiment shown in FIG. 14, a spring for urging the point fire extinguishing button 12 to the rear is provided, and the urging force of this spring, the urging force of the spring 26 for urging the slider 25 to the front, and the operating body 42. By adjusting the urging force of the spring 51 to urge forward, the operating body 42 is pushed in and unlocked, and then the finger is immediately released from the operating body 42 and the point fire extinguishing button 12 is pushed in to ignite. It can also be operated.

That is, as shown in FIG. 15, the urging force of the spring 26 that urges the slider 25 forward is F1, the urging force of the spring 51 that urges the operating body 42 forward is F2, and the point fire extinguishing button 12 is rearward. Assuming that the urging force of the urging spring (not shown) is F3, the urging force of the spring is set so that the following relationship is established.

F1>F3> F2
According to this, when the point fire extinguishing button 12 is in the fire extinguishing position that greatly protrudes forward, as shown in FIG. 16A, the follow pin portion 54a of the locking position holding mechanism 50 is the rear end of the groove cam 55. It is in the standby position (h) of the unit. When the operating body 42 is pushed to the limit and the fingers are released from this state, the cam body 52 is once moved backward against the spring-loaded force F2, and then returns to the front by the spring-loaded force F2. That is, as shown in FIG. 16B, the follow pin portion 54a in the standby position (h) is guided by the first step s1 after shifting to the first turn-back position (j) via the first path R1. It is guided to the second route R2 and is stably held up to the holding position (k) at the rear end. As a result, the unlocked state is maintained.

Next, when the point fire extinguishing button 12 is pushed greatly to the "ignition position" for burner ignition, the contact portion 12a of the point fire extinguishing button 12 that moves greatly backward is attached to the reset projection 56 of the operating body 42 from the front. Upon contact, the operating body 42 and the cam body 52 are further moved rearward against the spring-forced force F2. Along with this, the follow pin portion 54a moves further forward relative to the cam body 52, and the follow pin portion 54a at the holding position (k) is placed at the second turn-back position (m) via the third route R3. The follow pin portion 54a is guided by the third step s3 and guided to the fourth route R4 in conjunction with the movement of the point fire extinguishing button 12 from the “ignition position” to the “combustion position”. It is held at the intermediate position (n). That is, since the urging force F3 of the spring that urges the point fire extinguishing button 12 to the rear is larger than the urging force F2 of the spring 51 that urges the operating body 42 to the front, the follow pin portion 54a is in the middle of the fourth route R4. It is held at position (n).

After pushing the point fire extinguishing button 12 greatly to extinguish the fire, if the pushing operation is released and the point fire extinguishing button 12 is returned to the "fire extinguishing position", the operation accompanies the movement of the point fire extinguishing button 12 to the rear. The body 42 and the cam body 52 are abutted and moved backward through the reset projection 56, and then returned and moved forward by the spring-forced force F2. At this time, as the point fire extinguishing button 12 moves backward from the "burning position", the follow pin portion 54a at the intermediate position (n) returns to the second turning position (m), and then the point fire extinguishing button The follow pin portion 54a returns and moves to the original standby position (h) in conjunction with the large return movement of 12 to the "fire extinguishing position". As a result, the lock mechanism 40 is locked again.

Further, by setting the urging force of the spring in this way, one of the two point fire extinguishing buttons 12 and 12 arranged in parallel in close proximity is ignited to set the combustion position. By igniting the other point fire extinguishing button 12, the reset protrusion 56 shared by the two point fire extinguishing buttons 12 and 12 is pushed in, and the follow pin portion 54a is positioned in the middle of the fourth path R4 ( The follow pin portion 54a is set to the fourth when the point fire extinguishing button 12 of the two point fire extinguishing buttons 12 or 12 is in the combustion position. It is held at the intermediate position (n) of the route R4.

As another embodiment of the present invention, the point fire extinguishing button 12 is engaged with the slider 25 so that the point fire extinguishing button 12 is integrally held by the slider 25 when the slider 25 is in the combustion position. The follow pin portion 54a may be held at an intermediate position (n) of the fourth route R4. In this case, it is not necessary to adjust the spring for urging the point fire extinguishing button 12 and the urging force of the spring.

In the above embodiment, two point fire extinguishing buttons (point fire extinguishing operation tools) 12 arranged in parallel in close proximity share a single lock mechanism 40 and a lock position holding mechanism 50, but a plurality of point fire extinguishing operations Each of the tools 12 may be equipped with an individual locking mechanism 40 and a locking position holding mechanism 50. That is, each point fire extinguishing operation tool 12 may be equipped with an operation body 42 for unlocking having an individual check unit 44 and a protrusion 56 for resetting, and a lock position holding mechanism 50. By doing so, each point fire extinguishing operation tool 12 can be operated independently without interfering with each other.

In the above embodiment, the case where the point fire extinguishing operation tool is of the button type is illustrated, but it can also be applied to the case of the rotary knob type.

The present invention is not limited to the above embodiment, and various modifications can be added within the scope of the present invention.

1 Gas stove 4 Stove burner 12 point fire extinguishing button (point fire extinguishing operation tool)
30 Valve position holding mechanism 40 Lock mechanism 41 Lock body 42 Operating body 44 Checking part 50 Locking position holding mechanism 55 Groove cam 56a Follow pin part

Claims (2)

It is a gas stove provided with a stove burner facing from an opening provided in the top plate of the upper part of the gas stove main body and a point fire extinguishing operation tool provided in the gas stove main body and manually operated for extinguishing the point fire of the stove burner.
At the lock position, the point fire extinguishing operation tool in the fire extinguishing position is prevented from moving in the ignition direction, and at the unlock position, the lock portion that allows the point fire extinguishing operation tool at the fire extinguishing position to move in the ignition direction.
The lock portion is provided with an unlock portion for switching from the lock position to the unlock position.
The unlocked portion can be moved to a standby position for positioning the locked portion at the locked position and an unlocked execution position for positioning the locked portion at the unlocked position , and is manually operated to perform the standby. It has an operating body that moves from the position to the release execution position .
After the stove burner is ignited with the movement of the point fire extinguishing operation tool in the ignition direction, the operating body of the unlocking portion is not manually operated, and the point fire extinguishing operation tool is not manually operated from the combustion position of the point fire extinguishing operation tool. In conjunction with the return operation to the fire extinguishing position, the lock portion is returned from the release execution position to the standby position, and the lock portion is positioned from the unlock position to the lock position.
A gas stove that features that. A plurality of lock portions individually corresponding to a plurality of point fire extinguishing operating tools deployed in close proximity are integrally formed, and a single unlock portion for switching the plurality of lock portions from the lock position to the unlock position. With a part,
The gas stove according to claim 1.

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