JP6890324B2 - Gas cookware - Google Patents

Description

The present invention relates to gas cooking utensils such as stoves.

In gas cooking utensils such as stoves, a gas burner is provided as a means for heating the object to be cooked, and a push switch that enables the gas burner to be extinguished by pressing a point fire extinguishing button (operating member) provided on the front surface of the body. Those with a mechanism are known. In this push switch mechanism, for example, as disclosed in Patent Document 1, a valve shaft provided with a valve body that opens and closes a gas flow path by repeatedly pressing a point fire extinguishing button is axially moved via a heart cam mechanism. It is a movement to move forward and backward. In particular, in the stove of Patent Document 1, the point fire extinguishing button is always protruding from the operation panel, which lacks novelty in design. Therefore, when not in use, the point fire extinguishing button is placed on the same surface as the operation panel surface. It is positioned so that it is located behind the operation panel surface during combustion.

Japanese Unexamined Patent Publication No. 2004-125336

In the above-mentioned conventional stove, regardless of the ignition state and the fire extinguishing state, the operating member is always located on the same surface as the operation panel surface or behind it, so that the position of the operating member is difficult to understand from the outside, and the ignition state is determined. It was difficult to distinguish it from the fire extinguishing state.

Therefore, an object of the present invention is to provide a gas cooking utensil that is easy to distinguish between an ignition state and a fire extinguishing state even if it is provided with an operating member of a push switch mechanism and is excellent in usability. is there.

In order to achieve the above object, the invention according to claim 1 is a rear flow path provided with a front operating member and a valve shaft for opening and closing a gas flow path to the burner in an apparatus provided with a burner. A cam that can move back and forth between the opening and closing part, the operating member and the flow path opening and closing part, and the front and rear position of the cam are changed by repeating the pushing operation of the operating member to extinguish the valve shaft and block the gas flow path. It is a gas cooking utensil provided with a guide means for moving back and forth between a position and a combustion position that opens a gas flow path.
The cam is composed of a first cam on the front side connected to the operating member and a second cam on the rear side for moving the valve shaft back and forth, and the guiding means is the first guide for determining the front and rear position of the first cam. It is composed of means and a second guiding means for determining the front-rear position of the second cam. At the fire extinguishing position, the first guiding means causes the first cam to have the front surface of the operating member along the front surface of the body. By pushing the operating member from the fire extinguishing position, the second cam retracts via the first cam to move the valve shaft to the valve opening side, and at the combustion position where the pushing operation is released, the first guide By means, the first cam is held in a front position that causes the operating member to project from the front surface of the body.
The "initial position where the front surface of the operating member is along the front surface of the body" means that the front surface of the operating member is on the same surface as the front surface of the body, and the front surface of the operating member is from the front surface of the body. The purpose is to include the case where the surface is slightly shifted forward or backward and becomes substantially the same surface.
According to the second aspect of the present invention, in the configuration of the first aspect, the first guiding means is a first cam groove formed in the first cam and locked to the first cam groove thereof. The second guiding means includes a first locking member that moves relative to the inside of the first cam groove as the cam moves back and forth, and a first urging member that urges the first cam forward. A heart-shaped second cam groove formed in the above, a second locking member that locks on the second cam groove and moves relative to the inside of the second cam groove as the second cam moves back and forth, and a second. It is characterized by including a second urging member that urges the cam forward.
According to the third aspect of the present invention, in the configuration of the first or second aspect, the first cam is provided with a partially overlapping overlapping portion on one of the first cam and the second cam on the other side. Is characterized in that the polymerized portion is in sliding contact with the other side when the cam is retracted.
The invention according to claim 4 includes a case for accommodating a first cam and a second cam, a first urging member, and a second urging member in the configuration of claim 2, and the second cam moves back and forth. Along with this, the switch provided on the case is turned on and off, and the first cam has a first lock between the initial position and the fire extinguishing push-off position when the operating member is pushed in from the combustion position. The other front and rear positions are positioned by the members, and the other front and rear positions are positioned by the contact with the second cam or the case, while the combustion position of the second cam is positioned by the second locking member and the other front and rear positions. Is positioned by contact with the case, the valve shaft, and the first cam.

According to the invention of claim 1, in the fire extinguishing position, the front surface of the operating member is held at the initial position along the front surface of the body, and in the combustion position, the operating member protrudes from the front surface of the body. Even if it is equipped with an operating member of the mechanism, it is easy to distinguish between the ignition state and the fire extinguishing state, and it is excellent in usability.
According to the invention of claim 2, in addition to the effect of claim 1, two cams can be smoothly moved back and forth to each position by using two heart cam mechanisms, and two cams are adopted. However, a good operability can be obtained.
According to the invention of claim 3, in addition to the effect of claim 1 or 2, when the first cam recedes, the overlapping portion slides against the other side, so that the receding of the first cam Guided through the overlapping section, both cams can move back and forth without rattling.
According to the invention of claim 4, in addition to the effect of claim 2, the locking of the first and second locking members and the first and second cams in the front-rear direction can be minimized. Therefore, it is possible to suppress the pushing force on the operating member and the urging force of the first and second urging members from acting on the first and second cams. Therefore, it is possible to effectively prevent damage to the first and second cams due to the pushing force and the urging force. In particular, since the second locking member does not lock in the front-rear direction on the second cam except for the combustion position, the second locking member does not get twisted. Therefore, the front-back movement of the second cam can be smoothly performed, and the timing of the ON / OFF operation of the switch does not deviate.

It is a perspective view of a built-in stove. It is a perspective view of the push switch mechanism. It is an exploded perspective view of a push switch mechanism. (A) is a rear view of the front cam, and (B) is a rear view of the rear cam. In the explanatory view of the push switch mechanism of the fire extinguishing position, (A) shows the side surface and (B) shows the bottom surface. In the explanatory view of the push switch mechanism of the ignition push-off position, (A) shows the side surface and (B) shows the bottom surface. In the explanatory view of the push switch mechanism of the combustion position, (A) shows the side surface and (B) shows the bottom surface. In the explanatory view of the push switch mechanism of the fire extinguishing push-off position, (A) shows the side surface and (B) shows the bottom surface. (A) is an explanatory diagram showing the relative movement of the rear end position of the front lever pin in the front cam groove, and (B) is an explanatory diagram showing the relative movement of the front end position of the rear lever pin in the rear cam groove.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a built-in stove which is an example of a gas cooking utensil. This built-in stove 1 has three stove parts 3, 3, ... In a horizontally long rectangular body 2 in a plan view, two on the front side (lower left side in FIG. 1) on the left and right, and one on the rear side in between. , A grill portion 4 located between the two stove portions 3 and 3 on the front side is provided.
The body 2 is attached to a main body 5 having an opening on the front surface and an upper surface, a front frame 6 attached to the front surface of the main body 5, a front panel 7 attached to the lower side of the front frame 6, and an opening on the upper surface of the main body 5. It consists of a top plate 8. A flange 9 that locks to the kitchen cabinet below the top plate 8 is provided around the opening on the upper surface of the body 2. Each stove portion 3 includes a stove burner 10 which is exposed upward from the top plate 8 and has a burner head 11 mounted on the upper surface thereof, and a trivet 12 located around the stove burner 10. Reference numeral 13 denotes an exhaust cap of the grill portion 4.

A grill door 14 is provided in the center of the front panel 7, and on the left and right sides of the grill door 14, a point fire extinguishing button 15, 15 ... An opening / closing type operation panel 16 is provided for this purpose. The point fire extinguishing button 15 is provided at the front end of the push switch mechanism housed in the body 2, and the point fire extinguishing operation of each burner can be performed by repeating the pressing operation of the point fire extinguishing button 15. Hereinafter, this push switch mechanism will be described in detail.

FIG. 2 is a perspective view of the push switch mechanism 20, and FIG. 3 is an exploded perspective view of the push switch mechanism 20. The push switch mechanism 20 includes a cam mechanism portion 21 and a flow path opening / closing portion 22 attached to the rear of the cam mechanism portion 21. A gas pipe (not shown) in the body 2 is connected to the upstream side of the flow path opening / closing part 22, a gas amount adjusting part 23 is connected to the downstream side, and a point fire extinguishing button 15 is connected to the front end of the cam mechanism part 21. Is provided. The push switch mechanism 20 is installed in the front-rear direction with the cam mechanism portion 21 facing downward in the body 2, but for convenience of explanation of the cam mechanism portion 21, the cam mechanism portion is shown in FIGS. It is shown with 21 facing up.

First, the cam mechanism unit 21 includes a mechanical box 24 and a front cam 25 and a rear cam 26 housed in the mechanical box 24. The mechanical box 24 includes a box main body 27 having a U-shaped cross section and opening the lower surface and the front surface, and a cover 28 that closes the lower surface of the box main body 27. The 29 and the igniter switch 30 are screwed together with the levers 29a and 30a facing downward and backward, respectively. A partition plate 31 having a through hole 32 is formed in the center of the box body 27 in the front-rear direction, a pair of cutout windows 33 and 33 are formed on the left and right sides of the rear side, and a plurality of notch windows 33 and 33 are formed in the lower parts of the left and right side surfaces. Locking protrusions 34, 34, ... Are projected in the front-rear direction at predetermined intervals. The rear end of the box body 27 is closed by a blocking plate 35 projecting to the left and right, a through hole 36 is formed at a portion facing the inside of the box body 27, and a ring-shaped protrusion 37 is formed around the through hole 36. There is. A rear pin receiving portion 38 is projected from the lower rear side of the closing plate 35, and the rear end of the inverted U-shaped rear lever pin 39 is held by the holding spring 40 in the rear pin receiving portion 38. .. Therefore, the rear lever pin 39 can swing left and right around the rear end. Stoppers 41 and 41 are provided on the left and right inside the front end of the box body 27.

The cover 28 has an inverted U-shaped cross section that hangs from the lower surface of the box body 27 to the lower parts of the left and right side surfaces, and the left and right folded portions have square holes 42, 42. -Is formed, and a front pin receiving portion 43 is projected at the center of the front end. The front end of the inverted U-shaped front lever pin 44 is held by the holding spring 45 in the front pin receiving portion 43. Therefore, the front lever pin 44 can swing left and right around the front end. Further, the front end of the rear lever pin 39 is inserted into the lower surface of the cover 28, and the arc-shaped rear elongated hole 46 centered on the rear end and the rear end of the front lever pin 44 are inserted into the arc shape centered on the front end. The front elongated hole 47 is formed in the left-right direction.

The front cam 25 is a block body having a U-shaped cross section whose upper outer shape fits into the box body 27, and a connecting rod 50 to which a point fire extinguishing button 15 is connected is rotatably and forwardly connected to the front surface. A front rod 51 that presses the rear cam 26 is projected backward on the rear surface. The left and right side surfaces on the front side of the front cam 25 are formed to have a width across flats, and the locking surfaces 52 and 52 that lock from the rear to the stoppers 41 and 41 of the box body 27 are formed on the rear left and right sides.
Further, a plate-shaped cam plate portion 53 having a front cam groove 54 formed is formed backward in the lower portion of the front cam 25, and a recess 55 having an open lower surface and a front surface is formed on the front side of the cam plate portion 53. Has been done. As shown in FIG. 5, the front cam groove 54 has a heart-shaped front circulation portion 56 in a plan view in which the left side is longer forward than the right side with the tip facing the rear side, and the front circulation portion 56 from the tip to the rear. It is a bottomed groove composed of a front straight portion 57 extending to. The rear end of the front lever pin 44 penetrating the front elongated hole 47 is inserted and locked in the front cam groove 54, and moves in the front cam groove 54 as the front cam 25 moves forward and backward as described later. ing.
Further, as shown in FIG. 4A, the outer surface of the front cam 25 has a U-shaped upper surface and a plurality of guide protrusions 58, 58 on the left and right side surfaces and the lower surface along the cam plate portion 53.・ Is projected in the front-back direction.

The rear cam 26 is also a block body having a U-shaped cross section whose upper outer shape fits into the box body 27, and presses the valve shaft 75 of the flow path opening / closing portion 22 on the rear surface as shown in FIGS. The rear rod 60 is projected backward. Further, a left arm 61 and a right arm 62 are projected on both left and right side surfaces, respectively. The left arm 61 pushes the lever 29a of the board switch 29 as the rear cam 26 retracts, and the right arm 62 pushes the lever 30a of the igniter switch 30 as the rear cam 26 retracts. The 61 is formed longer rearward than the right arm 62, and the timing at which the board switch 29 is turned on is set earlier than the timing at which the igniter switch 30 is turned on.

Further, a relief recess 63 into which the cam plate portion 53 of the front cam 25 can enter is formed in the front-rear direction in the lower portion of the rear cam 26, and a rear cam groove 64 is formed in the bottom surface of the relief recess 63. .. The rear cam groove 64 is composed of a heart-shaped rear circulation portion 65 in a plan view in which the right side is longer forward than the left side with the tip facing the rear side, and a rear straight portion 66 extending rearward from the tip of the rear circulation portion 65. It is a bottomed groove. After that, the front end of the rear lever pin 39 that penetrates the rear long hole 46 is inserted and locked in the rear cam groove 64, and moves in the rear cam groove 64 as the rear cam 26 moves forward and backward as described later. There is.
As shown in FIG. 4B, a plurality of guide protrusions 67, 67 ... Are also provided on the outer surface of the rear cam 26 on the U-shaped upper surface and the left and right side surfaces excluding the left and right arms 61 and 62. It is projected in the front-back direction.

Here, the front cam 25 is housed in the box body 27 on the front side of the partition plate 31, and a front coil spring 70 into which the front rod 51 of the front cam 25 is inserted is provided between the front cam 25 and the partition plate 31. .. Therefore, the front cam 25 is moved back and forth between the front position where the locking surfaces 52 and 52 abut the stoppers 41 and 41 of the box body 27 and the rear position where the rear surface excluding the cam plate 53 abuts the partition plate 31. It becomes movable.
Further, the rear cam 26 is housed in the box body 27 on the rear side of the partition plate 31, and the rear rod 60 of the rear cam 26 is inserted between the rear cam 26 and the closing plate 35 of the box body 27. A rear coil spring 71 is provided. The rear end of the rear coil spring 71 is fitted and held in the ring-shaped protrusion 37 on the front surface of the closing plate 35. Therefore, the rear cam 26 can move back and forth between the front position where the front surface abuts on the partition plate 31 and the rear position where the rear rod 60 pushes the valve shaft 75 and the rear surface is close to the ring-shaped protrusion 37. ..

In this state, the cover 28 is put on the box body 27 to close the lower surface, the rear end of the front lever pin 44 is locked to the front cam groove 54 of the front cam 25 via the front elongated hole 47, and the front end of the rear lever pin 39 is locked. It is locked to the rear cam groove 64 of the rear cam 26 via the rear elongated hole 46. The front cam 25 and the rear cam 26 are urged to the front positions by the front coil spring 70 and the rear coil spring 71, respectively. As will be described later, the front cam 25 and the rear cam 26 are locked to the front cam groove 54 by the front lever pin 44 and the rear lever pin 39. The front-rear position is changed in the mechanical box 24 by engaging with the rear cam groove 64, contacting the partition plate 31 or the stopper 41 in the box body 27, and contacting the valve shaft 75, which will be described later. It will be. At this time, in the front cam 25, the guide protrusions 58, 58 ... Provided on the upper and lower surfaces and the left and right side surfaces, which are different sliding surfaces with respect to the inner surface of the mechanical box 24, come into contact with the inner surface of the mechanical box 24. In the rear cam 26 as well, the guide protrusions 67, 67 ... Provided on the upper surface and the left and right side surfaces, which are different sliding surfaces from the inner surface of the mechanical box 24, come into contact with the inner surface of the mechanical box 24.
The left and right arms 61 and 62 of the rear cam 26 project outward to the left and right through the cutout windows 33 and 33 of the box body 27, respectively, and the board switch 29 and the igniter switch 30 are turned on / off as the rear cam 26 moves forward and backward. It will be turned off.

The flow path opening / closing portion 22 is a tubular body having a gas inlet 72 on the lower side and a gas outlet 73 on the upper side to form a gas flow path inside, and an upstream side of the gas flow path at the rear end. A magnet solenoid valve 74 that opens and closes is provided, and a valve shaft 75 having a main valve that opens and closes the downstream side of the gas flow path is housed in the gas flow path so as to be able to move forward and backward. However, the valve shaft 75 is normally urged to a forward position where the main valve is closed by the magnetic solenoid valve 74 which is urged to close the valve forward. A mounting flange 76 on which the valve shaft 75 protrudes extends from the front end of the flow path opening / closing portion 22, and the mounting flange 76 is screwed to the closing plate 35 of the box body 27 to allow the through hole 36 of the closing plate 35 to be screwed. And the opening of the mounting flange 76 are coaxially communicated with each other so that the valve shaft 75 can protrude into the box body 27. Reference numeral 77 denotes a packing that seals between the closing plate 35 and the mounting flange 76 at the penetrating portion of the valve shaft 75.

The gas amount adjusting unit 23 is a tubular body that is connected to the gas outlet 73 of the flow path opening / closing unit 22 and extends in the front-rear direction in parallel with the flow path opening / closing unit 22, and has a gas adjusting flow that communicates with the gas outlet 73 inside. A road and a connection port (not shown) to which a gas pipe (not shown) for supplying fuel gas to the burner is connected are formed on the downstream side thereof. A needle valve 78 is provided in the gas adjusting flow path to change the opening area of the gas adjusting flow path by moving forward and backward in the axial direction.

The point fire extinguishing button 15 has a circular shape when viewed from the front, and is integrally connected to the front end of the intermediate cylinder 80 which is externally attached to the connecting rod 50 of the front cam 25. At the rear end of the intermediate cylinder 80, an engaging sleeve 82 is integrally outered in the rotational direction by engaging with a ridge 81 provided on the outer periphery of the intermediate cylinder 80.
In FIG. 2, 83 is a holding frame fixed to the back side of the front panel 7, and 84 is an adjustment ring coaxially and rotatably held on the holding frame 83 outside the point fire extinguishing button 15. On the outer circumference of the adjusting ring 84, a spiral groove 86 extending rearward under the needle valve 78 of the gas amount adjusting portion 23 and engaging with a pin (not shown) protruding in the radial direction from the needle valve 78 is formed. The provided linking piece 85 is integrally provided. The adjusting ring 84 rotates via the engaging sleeve 82 in accordance with the rotation operation of the point fire extinguishing button 15 by engaging the engaging sleeve 82 that has advanced at the combustion position described later. The linking piece 85 can be eccentrically moved to move the pin relative to the groove 86, and the needle valve 78 can be moved back and forth in the axial direction.

In the push switch mechanism 20 of the built-in stove 1 configured as described above, the operation from ignition to fire extinguishing will be described with reference to FIGS. 5 to 9. In (A) of FIGS. 5 to 8, the vertical orientation is opposite to that of FIGS. 2 and 3, and in (B) of FIGS. 5 to 8, the bottom surface is shown and the cover 28 is omitted to provide the front length. Only the hole 47 and the rear long hole 46 are shown by virtual lines.
First, when the point fire extinguishing button 15 is not operated, as shown in FIG. 5, in the front cam 25, the rear end of the front lever pin 44 passes through the front elongated hole 47 and is centered on the front side of the front circulation portion 56 of the front cam groove 54. By locking at (position A in FIG. 9A), the front coil spring 70 is slightly rearward (initial position) from the front position against the urging of the front coil spring 70. The rear cam 26 is in a front position where it comes into contact with the partition plate 31 due to the urging of the rear coil spring 71. At this time, the front end of the rear lever pin 39 is in the rear straight portion 66 of the rear cam groove 64 via the rear elongated hole 46, but is not locked to the rear end of the rear straight portion 66 and is slightly anterior to the rear end ( It is located at position A) in FIG. 9 (B).

In this state, the front surface of the point fire extinguishing button 15 in which the front cam 25 and the front-rear movement are integrated slightly protrudes from the front surface of the body 2 (here, the front surface of the front panel 7 and is indicated by the line L) and follows the line L. Is in the right position. Here, the cam plate portion 53 of the front cam 25 projects rearward from the partition plate 31, but since the rear cam 26 is formed with a relief recess 63, it does not interfere with the rear cam 26 and the cam plate portion 53. Is polymerized on the bottom surface of the relief recess 63.
Further, in this state, since the rear rod 60 of the rear cam 26 is separated forward from the valve shaft 75, the valve shaft 75 of the flow path opening / closing portion 22 is in the forward position, and the main valve and the magnet solenoid valve 74 are in the forward position. The valve is closed (fire extinguishing position). Further, the left and right arms 61 and 62 of the rear cam 26 are also separated forward from the levers 29a and 30a of the board switch 29 and the igniter switch 30.

When the point fire extinguishing button 15 is pushed in from here, as shown in FIG. 6, the front rod 51 of the retracted front cam 25 penetrates the through hole 32 of the partition plate 31 and comes into contact with the rear cam 26, and the rear cam 26 is reared. It retracts against the urging of the coil spring 71. Then, after retreating, the rear rod 60 of the cam 26 abuts on the valve shaft 75 to retract the valve shaft 75, and the retracted valve shaft 75 forcibly opens the magnet solenoid valve 74 and pushes the valve. It is regulated (ignition push-off position). At this time, the rear end of the front lever pin 44 moves in the front circulation portion 56 and is located at the left front end thereof, but is not locked to the left front end and is slightly rearward (position B in FIG. 9A). positioned.
On the other hand, the front end of the rear lever pin 39 moves in the rear circulation portion 65 and is located at the right front end thereof, but is not locked to the right front end and is located slightly behind (position B in FIG. 9B). ing. As described above, since the rear lever pin 39 is not locked to the rear cam groove 64 from the position A to the position B, twisting does not occur.

At the bottom of the front cam groove 54 and the rear cam groove 64, steps 88, 88, which regulate the moving direction of the ends of the front lever pin 44 and the rear lever pin 39 in the clockwise rotation direction in FIG. (FIG. 9) is formed, and the front and rear lever pins 44 and 39 are pressed against the bottom side of the cam grooves 54 and 64 by the holding springs 40 and 45, so that the front and rear lever pins 44 and 39 do not come off from the cam grooves 54 and 64. Guided in only one direction.

Further, when the front cam 25 retracts, the cam plate portion 53 projecting rearward slides on the bottom surface of the relief recess 63 of the rear cam groove 64, so that the front cam 25 retracts rearward via the cam plate portion 53. Guided by the relief recess 63 of the cam 26, it can move smoothly. Further, the cam plate portion 53 does not interfere with the rear cam groove 64.
Further, since guide protrusions 58 and 67 are formed on the outer surfaces of the front cam 25 and the rear cam 26 in the front-rear direction, the guide protrusions 58 and 67 slide on the inner surface of the mechanical box 24 to cause the front cam 25 to slide. And the posture of the rear cam 26 in the front-rear direction is maintained. Therefore, the front cam 25 and the rear cam 26 can be smoothly retracted without being twisted in the mechanical box 24.

At this ignition push-off position, the main valve is opened together with the magnet solenoid valve 74, and fuel gas is supplied into the gas flow path of the flow path opening / closing portion 22. Therefore, the fuel gas is supplied to the stove burner 10 or the grill burner via the gas amount adjusting unit 23. At the same time, the left arm 61 of the rear cam 26 pushes the lever 29a of the board switch 29 and the right arm 62 pushes the lever 30a of the igniter switch 30 in order to turn on both switches 29 and 30, so that the switches 29 and 30 are turned on from the control circuit board. The magnet solenoid valve 74 is energized and the igniter operates to ignite.

Next, when the point fire extinguishing button 15 is released from the ignition push-off position, as shown in FIG. 7, the front cam 25 has the locking surfaces 52 and 52 of the stopper 41 of the box body 27 due to the urging of the front coil spring 70. , 41 moves to the front position to lock. At the time of this advancement, since the recess 55 is formed in the lower part of the front side of the front cam 25, it does not interfere with the front pin receiving portion 43 on the mechanical box 24 side.
Along with the advancement of the front cam 25, the point fire extinguishing button 15 also advances and protrudes forward more than the front surface of the front panel 7. At this time, the rear end of the front lever pin 44 moves from the front circulation portion 56 to the front straight portion 57, but is not locked to the rear end of the front straight portion 57 and is located slightly forward (position C in FIG. 9A). doing. Further, the rear cam 26 moves forward by urging the rear coil spring 71 so that the front end of the rear lever pin 39 moves in the rear circulation portion 65 and is locked to the center of the front side (position C in FIG. 9B). Is regulated. A locking protrusion 46a (FIGS. 2 and 6) that lightly locks to the front end of the rear lever pin 39 is formed on the front edge of the rear elongated hole 46, and the rear lever pin 39 suddenly moves from the locking position. It is preventing that.

In this state, in the flow path opening / closing section 22, the magnet solenoid valve 74 is held open by energization, so that the valve shaft 75 does not move, the main valve is also opened, and the fuel gas supply continues. Is done (combustion position). Further, the left arm 61 of the rear cam 26 keeps the board switch 29 ON while the lever 29a of the board switch 29 is pushed in, and the right arm 62 separates the igniter switch 30 from the lever 30a of the igniter switch 30. Turn it off.
Further, when the point fire extinguishing button 15 is rotated, the adjusting ring 84 and the linking piece 85 are rotated via the engaging sleeve 82 to move the needle valve 78 in the axial direction as described above, and the gas amount adjusting unit 23 The thermal power can be adjusted by changing the opening area of the gas adjustment flow path.

Then, when the point fire extinguishing button 15 is pushed in from the combustion position, as shown in FIG. 8, the front cam 25 retracts, the rear end of the front lever pin 44 moves in the front circulation portion 56, and the right front end thereof (FIG. 9). Pushing is restricted by locking at position D) of (A) (fire extinguishing push-off position). By pushing the front cam 25, the rear cam 26 is also pushed back by being pressed by the front rod 51, and the front end of the rear lever pin 39 moves in the rear circulation portion 65 and reaches the left front end thereof, but the left front end is engaged. It does not stop and is located on the rear side (position D in FIG. 9B).
Also at this time, when the front cam 25 retracts, the cam plate portion 53 overlaps the bottom surface of the relief recess 63 of the rear cam groove 64 again and slides on the bottom surface, so that the retracting of the front cam 25 retreats the cam plate portion 53. It is guided by the escape recess 63 of the rear cam 26 via the rear cam 26 and can move smoothly.

When the point fire extinguishing button 15 is released at this fire extinguishing push-off position, the rear end of the front lever pin 44 moves in the front circulation portion 56 and locks in the center of the front side of the front cam 25 due to the urging of the front coil spring 70. Return to the position shown in FIG. The rear cam 26 also returns to the position shown in FIG. 5 in which the front end of the rear lever pin 39 moves from the rear circulation portion 65 to the rear straight portion 66 and abuts on the partition plate 31. Also at this time, since the rear lever pin 39 does not lock in the rear cam groove 64 from the position D to the position A, twisting does not occur.
After that, as the cam 26 advances, the left arm 61 separates from the lever 29a of the board switch 29 and turns off the board switch 29. Therefore, the control circuit board stops energizing the magnet solenoid valve 74 and closes the magnet solenoid valve 74. Let me speak. As a result, in the flow path opening / closing section 22, the valve shaft 75 also advances to close the main valve, so that the supply of fuel gas is stopped and the burner is extinguished.
In this way, even when the front cam 25 and the rear cam 26 move forward, the guide protrusions 58 and 67 slide on the inner surface of the mechanical box 24 to maintain the posture in the front-rear direction, so that the front cam 25 and the rear cam 26 can move forward smoothly.

As described above, according to the built-in controller 1 of the above-described embodiment, the cam that can move back and forth between the point fire extinguishing button 15 and the flow path opening / closing portion 22 is connected to the front cam 25 connected to the point fire extinguishing button 15 and the valve shaft. It is composed of a rear cam 26 that moves the 75 back and forth, and the front and rear positions of the front and rear cams 25 and 26 are changed by repeating the pushing operation of the point fire extinguishing button 15 to move the valve shaft 75 back and forth between the fire extinguishing position and the combustion position. The guide means are the first guide means (front cam groove 54, front lever pin 44, front coil spring 70, stopper 41, rear cam 26 (valve shaft 75)) that determines the front / rear position of the front cam 25, and the front / rear of the rear cam 26. It is composed of a second guide means (rear cam groove 64, rear lever pin 39, rear coil spring 71, partition plate 31, valve shaft 75, front cam 25) for determining the position. The cam 25 is held at an initial position where the front surface of the point fire extinguishing button 15 is aligned with the front surface of the body 2, and the rear cam 26 retracts via the front cam 25 by pushing the point fire extinguishing button 15 from the fire extinguishing position. At the combustion position where the valve shaft 75 is moved to the valve opening side and the pushing operation is released, the front cam 25 is held at the front position where the point fire extinguishing button 15 protrudes from the front surface of the body 2 by the first guiding means. I am trying to do it. Therefore, even if the push switch mechanism 20 is provided with the point fire extinguishing button 15, the ignition state and the fire extinguishing state can be easily distinguished, and the usability is excellent.

In particular, here, the first guiding means is locked to the heart-shaped front cam groove 54 formed in the front cam 25 and the front cam groove 54 thereof, and the inside of the front cam groove 54 is moved as the front cam 25 moves back and forth. The front lever pin 44 for relative movement and the front coil spring 70 for urging the front cam 25 forward are included, and the second guiding means is a heart-shaped rear cam groove 64 formed on the rear cam 26 and a subsequent cam. Since it includes a rear lever pin 39 that locks in the groove 64 and moves relative to the rear cam groove 64 as the rear cam 26 moves back and forth, and a rear coil spring 71 that urges the rear cam 26 forward. The two front and rear cams 25 and 26 can be smoothly moved back and forth to each position by using the two heart cam mechanisms, and a good operation feeling can be obtained even if two cams are adopted.

Further, when the cam plate portion 53 that partially overlaps the rear cam 26 is projected from the front cam 25 and the front cam 25 retracts, the cam plate portion 53 with respect to the relief recess 63 of the rear cam 26. Since the front cam 25 is in sliding contact, the retreat of the front cam 25 is guided to the relief recess 63 of the rear cam 26 via the cam plate portion 53, and the front cam 25 and the rear cam 26 can move back and forth without rattling.

Further, the front cam 25 is positioned at the initial position and the fire extinguishing push-off position when the point fire extinguishing button 15 is pushed in from the combustion position by the front lever pin 44, respectively, and the other front-rear positions (ignition push-off position, combustion). The position) is positioned by contact with the rear cam 26 (valve shaft 75) or the stopper 41 of the mechanical box 24, while the combustion position of the rear cam 26 is positioned by the rear lever pin 39 and other front and rear positions (position). The fire extinguishing position, the ignition push-off position, and the fire extinguishing push-off position) are positioned by contact with the partition plate 31, the front cam 25, and the valve shaft 75 of the mechanical box 24.
As a result, the front-rear lever pins 44 and 39 and the front-rear cams 25 and 26 can be locked to each other in the front-rear direction to a minimum. It is possible to suppress the action on the front and rear cams 25 and 26. Therefore, damage to the front and rear cams 25 and 26 due to the pushing force and the urging force can be effectively prevented.
In particular, since the rear lever pin 39 is not locked in the front-rear direction on the rear cam 26 except for the combustion position, the rear lever pin 39 is not twisted. Therefore, the rear cam 26 can be smoothly moved back and forth, and the timing of the ON / OFF operation of the board switch 29 and the igniter switch 30 does not shift.

The shapes of the two cams and the shapes of the respective cam grooves are not limited to the above-mentioned forms, and can be changed as appropriate. For example, a cam plate portion to be a polymerization portion may be provided on the rear cam and slidably contacted with the front cam. However, it is also possible to provide a superposed portion without a cam groove. The shape and position of the front and rear lever pins and the front and rear elongated holes can also be changed.
Further, in the above embodiment, the cam grooves are provided on the two cams and the lever pins are provided on the mechanical box side for holding the cams. On the contrary, the lever pins are provided on the two cams and the cam grooves are provided on the mechanical box side. Even if the above is provided, the front and rear positions of the two cams can be changed by pressing the point fire extinguishing button.

Further, the operating member is not limited to the point fire extinguishing button of the above-described form, and the size and shape can be appropriately changed. Further, in the above embodiment, the thermal power can be adjusted by rotating the point fire extinguishing button, but the thermal power adjustment may be performed by a thermal power adjustment lever separately provided with the operation member.
The form of the built-in stove is not limited to the above description, and the stove may have two ports or no grill, and the built-in stove is not limited to the built-in stove but also other gas cooking utensils such as a table stove. The present invention is applicable.

1 ・ ・ Built-in cam, 2 ・ ・ Instrument body, 3 ・ ・ Conro part, 4 ・ ・ Grill part, 5 ・ ・ Main body, 7 ・ ・ Front panel, 10 ・ ・ Conroburner, 15 ・ ・ Point fire extinguishing button (operation member) ), 20 ... Push switch mechanism, 21 ... Cam mechanism, 22 ... Flow path opening / closing part, 23 ... Gas amount adjustment part, 24 ... Mechanical box (case), 25 ... Front cam (1st cam) ), 26 ... rear cam (second cam), 27 ... box body, 28 ... cover, 29 ... board switch, 30 ... igniter switch, 31 ... partition plate, 39 ... rear lever pin (second) Locking member), 41 ... Stopper, 44 ... Front lever pin (first locking member), 46 ... Rear long hole, 47 ... Front long hole, 51 ... Front rod, 52 ... Locking surface, 53 ... cam plate part (overlapping part), 54 ... front cam groove (first cam groove), 56 ... front circulation part, 57 ... front straight part, 58, 67 ... guide protrusion, 60 ... rear Side rod, 61 ... right arm, 62 ... left arm, 64 ... rear cam groove (second cam groove), 65 ... rear circulation part, 66 ... rear straight part, 70 ... front coil spring (first) Biasing member), 71 ... Rear coil spring (second urging member), 74 ... Magnet electromagnetic valve, 75 ... Valve shaft, 88 ... Step, L ... Front of front panel.

Claims (4)

Between the operation member on the front side, the flow path opening / closing portion on the rear side having a valve shaft for opening / closing the gas flow path to the burner, and the operating member and the flow path opening / closing part in the body provided with the burner. The cam that can be moved back and forth and the front and rear position of the cam are changed by repeating the pushing operation of the operating member, and the valve shaft is opened to the fire extinguishing position that closes the gas flow path and the gas flow path. It is a gas cooking utensil provided with a guide means for moving back and forth between the position and the position.
The cam is composed of a first cam on the front side connected to the operating member and a second cam on the rear side for moving the valve shaft back and forth, and the guiding means is used to position the front and rear positions of the first cam. It is composed of a first guide means for determining and a second guide means for determining the front-rear position of the second cam.
At the fire extinguishing position, the first guide means holds the first cam in an initial position so that the front surface of the operating member is along the front surface of the body.
By pushing the operating member from the fire extinguishing position, the second cam retracts via the first cam to move the valve shaft to the valve opening side.
A gas cooking utensil characterized in that at the combustion position where the pushing operation is released, the first cam is held at a front position where the operating member is projected from the front surface of the body by the first guiding means. The first guide means is locked in the heart-shaped first cam groove formed in the first cam and the first cam groove, and in the first cam groove as the first cam moves back and forth. Includes a first locking member that relatively moves the first cam and a first urging member that urges the first cam forward.
The second guide means is locked in the heart-shaped second cam groove formed in the second cam and the second cam groove, and in the second cam groove as the second cam moves back and forth. The gas cooking utensil according to claim 1, further comprising a second locking member that relatively moves the second cam and a second urging member that urges the second cam forward. A polymerization portion that partially overlaps the other side is provided on either one of the first cam and the second cam, and when the first cam retracts, the polymerization portion moves to the other side. The gas cooking utensil according to claim 1 or 2, wherein the gas cooking utensil is in sliding contact with the other. A case is provided for accommodating the first cam, the second cam, the first urging member, and the second urging member, and the second cam turns on a switch provided in the case as it moves back and forth. / OFF operation is performed,
The first cam is positioned by the first locking member at the initial position and the fire extinguishing push-off position when the operating member is pushed in from the combustion position, and the other front-rear positions are the above-mentioned. Positioned by contact with the second cam or the case, while
The second cam is characterized in that the combustion position is positioned by the second locking member, and the other front and rear positions are positioned by contact with the case, the valve shaft, and the first cam. The gas cooking utensil according to claim 2.

Images