JP6104754B2 - Cooker - Google Patents

Description

  According to the present invention, a burner for heating an object to be heated is provided, and a thermal power adjusting mechanism for adjusting the amount of combustion of the burner by controlling the amount of gas supplied to the burner, and a gas supply path to the thermal power adjusting mechanism The present invention relates to a heating cooker provided with an opening and closing mechanism.

  For example, Patent Document 1 discloses an electromagnetic safety valve that opens and closes a gas supply path to a stove burner and a grill burner as a heating power adjustment device provided in a gas appliance such as a heating cooker, and a downstream side of the safety valve. There is disclosed a device provided with a flow rate adjusting valve that adjusts the heating power by increasing or decreasing the flow rate of gas supplied to a stove burner or grill burner. In this thermal power adjusting device, when the solenoid coil built in the safety valve is energized, the safety valve is driven in the valve opening direction against the biasing force of the spring, and the gas supply path to the flow rate adjusting valve is opened. The flow rate adjusting valve has an orifice plate in which an orifice hole is provided on the upper surface of the fixed plate via a packing and having a flow rate corresponding to the gas type, after the fixed plate is stacked on the upper surface of the rotating plate driven by the motor. In addition, a long hole is formed in the rotating plate along the rotation direction, and a plurality of through holes having different inner diameters are formed along the locus of the long hole. In this flow control valve, when the rotating plate is rotated, the combination of the through holes that match the long holes is switched, and the gas that has passed through the long holes and the through holes is adjusted to a predetermined flow rate when passing through the orifice holes. Supplied to each burner.

JP 2003-130332 A

  However, in the cooking device provided with the above-described thermal power adjusting device, the flow rate of the gas supplied to each burner can be adjusted only by switching the combination of the through holes that match the elongated holes. It seems that it is unsuitable for adjustment. In order to solve this problem, for example, a valve body that adjusts the opening of the gas supply path to each burner is connected to the tip of the spindle, and the opening position of the valve body is changed while the spindle is moved by a motor. By doing so, it is conceivable to adjust the opening degree of the gas supply path to each burner step by step. In such a case, when the burner is ignited, the solenoid coil is energized to open and close the gas supply path to the thermal power adjustment mechanism (thermal power adjustment mechanism) including the valve body, In order to adjust the opening degree of the gas supply path in stages, it was necessary to drive a motor for moving the spindle. For this reason, there has been a concern that the mechanism for opening and closing the gas supply path to the thermal power adjustment mechanism and adjusting the opening of the gas supply path to the burner becomes complicated.

  The present invention has been proposed in view of such circumstances, and a mechanism for performing opening and closing of the gas supply path to the thermal power adjustment mechanism and adjustment of the opening of the gas supply path to the burner is simplified. An object of the present invention is to provide a cooking device.

In order to achieve the above object, the invention according to claim 1 is provided with a burner that heats an object to be heated, and a thermal power adjustment mechanism that adjusts the combustion amount of the burner by controlling the amount of gas supplied to the burner. When opening and closing mechanism for opening and closing the supply passage of the gas into the thermal adjustment mechanism, a heating cooker having a opening and closing mechanism, by forward and backward movement in the axial direction of the shaft-shaped first spindle, thermal adjustment An on-off valve that can open and close the gas supply path to the mechanism, the thermal power adjustment mechanism can adjust the opening of the gas supply path to the burner by the axial movement of the second spindle in the axial direction And an opening / closing mechanism that is driven by a single motor to move the first spindle and the second spindle back and forth.
According to a second aspect of the present invention, in the configuration according to the first aspect, the advance / retreat mechanism is coupled to the rotating shaft of the motor, and a first inclined surface that is inclined toward the first spindle is formed. As the first gear cam member rotates in conjunction with the first gear cam member and the rotation shaft, the first cam cam member moves in the approaching direction with the first spindle while contacting the first inclined surface. A first moving member that moves the spindle forward and a second inclined surface that is engaged with the first gear cam member to transmit the rotational force of the motor and that is inclined toward the second spindle are formed. Along with the rotation of the gear cam member and the second gear cam member to which the rotational force is transmitted, the second spindle is moved forward by moving in the approaching direction with the second spindle while abutting the second inclined surface. And a second moving member to be provided Than is.
According to a third aspect of the present invention, in the configuration of the second aspect, a position sensor for detecting a rotation angle of the rotation shaft is provided.
According to a fourth aspect of the present invention, in the configuration according to the third aspect , the first gear cam member is provided with a protrusion for detecting the origin by pressing the microswitch. is there.
According to a fifth aspect of the present invention, in the configuration according to the fourth aspect, the first and second gear cam members and the first and second moving members are accommodated in the accommodating member. The motor is fixed, and a position sensor and a micro switch are arranged inside the housing member.

According to the first aspect of the present invention, it is possible to drive the advance / retreat mechanism using a single motor and advance / retreat the second spindle together with the first spindle. Both opening and closing and opening adjustment of the gas supply path to the burner can be performed. Therefore, a mechanism for performing both opening and closing of the gas supply path to the heating power adjusting mechanism and the opening degree adjustment is simplified.
According to the second aspect of the present invention, by using the first gear cam member and the first moving member, the rotational force of the motor can be easily converted to a force for moving the first spindle forward. Further, by using the first and second gear cam members and the second moving member, the rotational force of the motor can be easily converted into a force for moving the second spindle forward.
According to the third aspect of the present invention, the rotation angle of the rotation shaft of the motor can be reliably grasped based on the detection value of the position sensor.
According to the fourth aspect of the present invention, it is possible to reliably detect that the first gear cam member is at the origin with a simple configuration in which the protrusion of the first gear cam member only presses the micro switch.
According to invention of Claim 5, a motor, a position sensor, and a microswitch can be collectively arrange | positioned around the accommodating member. Therefore, it is possible to reduce the arrangement space of the motor, the position sensor, and the micro switch.

It is a whole perspective view of the built-in stove of the embodiment of the present invention. It is principal part sectional drawing of the 1st gas amount adjustment unit which adjusts the supply amount of the gas to the burner with which the stove provided in the built-in stove is equipped. It is a disassembled perspective view when the spindle drive mechanism with which a 1st gas amount adjustment unit is provided is seen from diagonally back. It is a disassembled perspective view when the spindle drive mechanism is viewed obliquely from the front. It is a figure which shows the internal structure of a spindle drive mechanism when a 1st gear cam member exists in an origin position. It is a top view of the 2nd gas amount adjustment unit which adjusts the supply_amount | feed_rate of the gas to the upper burner and lower burner of the grill part provided in the built-in stove. It is principal part sectional drawing of a 2nd gas amount adjustment unit. It is a disassembled perspective view when the 2nd thermal power adjustment mechanism with which a 2nd gas amount adjustment unit is provided is seen from diagonally back. It is a disassembled perspective view when the said 2nd thermal-power adjustment mechanism is seen from diagonally forward. It is the figure which looked at the 2nd body member with which the 2nd thermal power adjustment mechanism is provided from the back side slanting lower part. It is a perspective view when the said 2nd body member is seen from diagonally forward. It is a top view of the 2nd body member. It is AA sectional view taken on the line of FIG. It is the BB sectional view taken on the line of FIG. It is a schematic block diagram of a 2nd thermal power adjustment mechanism. It is a figure explaining the stop state of the 1st gas amount adjustment unit. It is a figure explaining the valve opening start state of the magnet solenoid valve of the opening / closing mechanism with which a 1st gas amount adjustment unit is provided. It is a figure explaining the fully open state of the magnet solenoid valve. It is a figure explaining the state which separated the pushing member from the magnet solenoid valve after making it the full open state. It is a figure explaining the state just before fully opening the on-off valve of the on-off mechanism with which the 1st gas amount adjustment unit is provided. It is a figure explaining the state which moved the needle valve of the 1st thermal power adjustment mechanism with which a 1st gas amount adjustment unit is provided to the intermediate opening position. It is a figure explaining the state which moved the needle valve to the maximum opening position side. It is a figure explaining the abnormal stop state of the 1st gas amount adjustment unit. It is a figure explaining the relationship between operation | movement of a 1st gas amount adjustment unit, and the rotation angle of the motor which rotationally drives the 1st and 2nd gear cam member. It is a figure which shows the internal structure of a spindle drive mechanism when the 3rd inclined surface of a 1st moving member contact | abuts and guides the 1st inclined surface of a 1st gear cam member. It is a figure which shows the internal structure of a spindle drive mechanism when the on-off valve of the on-off mechanism with which a 1st gas amount adjustment unit is provided is fully opened. It is a figure which shows the internal structure of a spindle drive mechanism when moving the needle valve of the 1st thermal power adjustment mechanism with which a 1st gas amount adjustment unit is provided to an intermediate opening position. It is a figure which shows the internal structure of a spindle drive mechanism when the needle valve is moved to the maximum opening position side. It is the schematic which looked at the 2nd body member with which the 2nd thermal-power adjustment mechanism of other embodiment is provided from the back side slanting lower part.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a built-in stove 1 that is an example of a heating cooker according to the present invention. This built-in stove 1 is housed in a kitchen unit (not shown). The built-in stove 1 includes a horizontally long stove body 2, and a left stove 5, a right stove 6, and a back stove 7 that heat an object to be heated such as a cooking pot on a top plate 3 of the stove body 2. Each is provided. Further, a grill portion 8 is provided in the center of the stove body 2, and a smoke discharge hole 9 generated in the grill portion 8 is opened behind the top plate 3. And the grill part 8 is provided with a grille on which an object to be cooked is placed, and an upper burner is provided above the grille and a lower burner is provided below the grille. ing. The stove main body 2 is an example of the main body of the present invention.

  Further, on the left and right sides of the grill portion 8 on the front surface of the stove body 2, the combustion amount adjusting body 11 of the grill portion 8, the combustion amount adjusting body 12 of the left stove 5, the combustion amount adjusting body 13 of the right stove 6, and the back A combustion amount adjusting body 14 for the stove 7 and a main power switch 15 are provided. The main power switch 15 is switched between an on state and an off state by a push operation. In the present embodiment, when the main power switch 15 is turned on, a controller (not shown) is set to a state in which a signal corresponding to the operation of each combustion amount adjuster 11 to 14 can be received. Each of the combustion amount adjusters 11 to 14 has a known push-push mechanism that can be rotated and is provided so as to protrude from the front surface of the stove body 2 or be accommodated in the stove body 2 by a push-in operation. When not in use, it is pushed into the stove body 2 and accommodated. When each of the combustion amount adjusters 11 to 14 is protruded from the front surface by a pushing operation, the controller executes an ignition process for the burner to be ignited. In the present embodiment, when the combustion amount adjusting bodies 11 to 14 are rotated, the controller supplies the gas supply amount to the target burner so that the gas amount corresponds to the rotation operation amount. .

  In the built-in stove 1, first gas amount adjusting units 18, 18, 18 for adjusting the amount of gas supplied to the burners provided in each stove 5-7, and the grill portion 8, for each stove 5-7. A second gas amount adjusting unit 19 that adjusts the amount of gas supplied to the upper and lower burners is disposed. As shown in FIG. 2, each first gas amount adjustment unit 18 includes a first heating power adjustment mechanism 20, an opening / closing mechanism 21, and a spindle drive mechanism 22 that is an example of an advance / retreat mechanism and an operation control mechanism of the present invention. Yes. For convenience of explanation, the left side of FIG. 2 is the front side of the first gas amount adjustment unit 18, and the right side of FIG. 2 is the rear side of the first gas amount adjustment unit 18. The first heating power adjusting mechanism 20 is formed of a metal-made substantially cylindrical housing 24 extending in the front-rear direction (left-right direction in FIG. 2), and a gas supply path 25 is formed in the front-rear direction with both ends closed. Yes. An inner peripheral step portion 26 is formed inside the gas supply path 25 by enlarging the inner diameter of the gas supply path 25 inside the front end side (the right side in FIG. 2). The front end side of the gas supply path 25 communicates with a gas receiving path 27 that is formed inside the housing 24 and opens in the lower surface of the housing 24. As will be described later, the gas receiving path 27 is connected to a gas outlet path 60 of the opening / closing mechanism 21. On the other hand, the rear end side (the left side in FIG. 2) of the gas supply path 25 communicates with a gas outlet path 28 that is formed inside the housing 24 and opens to the upper surface of the housing 24. This gas outlet path 28 is connected to a burner provided in each stove 5-7. Further, the second spindle 29 is supported inside the housing 24 so as to be movable in the front-rear direction, and the front side of the second spindle 29 is inserted into the gas supply path 25. The rear side protrudes from the rear end of the housing 24 (left side in FIG. 2). A needle valve 30 that adjusts the opening of the gas supply path 25 is connected to the tip of the second spindle 29. A taper surface is formed at the rear end portion (left side in FIG. 2) of the needle valve 30, and the second spindle 29 is moved in the front-rear direction so that the taper surface and the inner surface of the gas supply path 25 are interposed. The opening degree of the gas supply path 25 can be adjusted by changing the gap. In the gas supply path 25, a coil spring 31 is fitted between the front blocking surface of the gas supply path 25 and the needle valve 30. The needle valve 30 is normally biased by a coil spring 31 in a direction in which the needle valve 30 abuts on the inner circumferential step portion 26. Thereby, the gas supply path 25 is normally closed. The needle valve 30 is an example of an opening adjustment valve according to the present invention.

  As shown in FIG. 2, the opening / closing mechanism 21 includes a substantially cylindrical housing 34 that extends longer in the front-rear direction than the housing 24 of the first heating power adjustment mechanism 20. The housing 34 is arranged in parallel with the housing 24 below the housing 24 in the vertical direction, and is screwed to the housing 24. Inside the housing 34, a gas supply path 35 is formed in the front-rear direction of the housing 34. A valve chamber 36 is provided on the front end side (right side in FIG. 2) of the gas supply path 35. Inside the valve chamber 36, a magnet electromagnetic valve 37 and an electromagnet 38 are disposed. A valve body 39 is provided at one end of the magnet electromagnetic valve 37, and an adsorption portion 40 for the electromagnet 38 is provided at the other end of the magnet electromagnetic valve 37. In a normal state, the valve body 39 closes the valve chamber 36 by the biasing force of the coil spring 41, and the attracting portion 40 is disposed to face the attracting surface of the electromagnet 38. The valve chamber 36 is formed inside the housing 34 and communicates with a gas inlet path 42 that opens to the lower surface of the housing 34. The gas inlet path 42 is connected to a gas supply pipe.

  Further, in the housing 34, the first spindle 45 is supported so as to be movable in the front-rear direction, and the first spindle 45 is inserted into the gas supply path 35, and the rear side of the first spindle 45 is disposed in the housing. 34 protrudes from the rear end (left side of FIG. 2). In addition, an opening member 46 (see FIG. 2) is disposed inside the gas supply path 35 and downstream of the magnet solenoid valve 37 and on the tip end side of the first spindle 45. The opening member 46 is used to push the magnet electromagnetic valve 37 and open the valve chamber 36. The opening member 46 is disposed in the gas supply path 35 along the front-rear direction, and moves in the front-rear direction in the outer cylinder 47 as the first spindle 45 advances and retreats. An inner cylinder 48, a rotating body 49 to which a forward force is transmitted from the inner cylinder 48, and a pushing member 50 that pushes the magnet electromagnetic valve 37 by the forward force are provided. The inner cylinder 48 is normally biased to the downstream side (retreat direction) of the gas supply path 35 by the coil spring 51. Further, the front end side of the first spindle 45 is connected to the inner cylinder 48. In addition, the rotating body 49 is normally biased in the backward direction so as to come into contact with the inner cylindrical body 48 by the coil spring 52. A through hole 53 that penetrates the rotating body 49 in the front-rear direction of the gas supply path 35 is provided at the center of the rotating body 49. A cylindrical space 54 that communicates with the through hole 53 projects from the upstream side of the gas supply path 35 in the rotating body 49. The pushing member 50 is inserted into the cylindrical space 54. In the cylindrical space 54, an absorbing spring 55 is provided between the rotating body 49 and the pushing member 50 so as to be compressed and absorb an extra stroke when the pushing member 50 fully opens the magnet electromagnetic valve 37. ing.

  In addition, on the downstream side of the opening member 46 in the gas supply path 35, an open / close valve 58 of the gas supply path 35 is slidably provided on the first spindle 45. The on-off valve 58 normally closes the gas supply path 35 by the biasing force of the coil spring 59. Further, a pushing member 61 (see FIGS. 16 to 23) for pushing the on-off valve 58 to the upstream side of the gas supply path 35 is fixed to the first spindle 45. In the present embodiment, after the opening of the magnet electromagnetic valve 37 is completed and the rotating body 49 is retracted, the pushing member 61 pushes the on-off valve 58 to open the gas supply path 35. Yes. Further, the downstream side of the gas supply path 35 communicates with a gas outlet path 60 that is formed inside the housing 34 and opens to the upper surface of the housing 34.

  As shown in FIGS. 2 to 5, the spindle drive mechanism 22 includes a housing member 63, a first gear cam member 64, a second gear cam member 65, a first moving member 66, and a second moving member 67. And. The housing member 63 has a box shape with the rear surface (left side in FIG. 2) opened long in the vertical direction. A first communication hole 69 for communicating the inside and the outside of the housing member 63 is provided in the lower front portion of the housing member 63, and a second portion for communicating the interior and the outside is provided in the upper front surface of the housing member 63. A communication hole 70 is provided. As shown in FIG. 2, the housing 24 of the first heating power adjustment mechanism 20 and the housing 34 of the opening / closing mechanism 21 are fixed in parallel on the front surface of the housing member 63 in the vertical direction. In this state, the rear side of the first spindle 45 is inserted into the first communication hole 69 so as to be positioned inside the housing member 63, and the rear side of the second spindle 29 is inserted into the second communication hole 70. ing.

  Further, as shown in FIGS. 2 to 5, a first gear cam member 64 is disposed on the lower side in the up-down direction and a second gear cam member 65 is rotatably disposed on the upper side in the housing member 63. The gear cam member 64 and the second gear cam member 65 are engaged with each other. As shown in FIGS. 4 and 5, the first gear cam member 64 has a front surface (oblique front side in FIG. 4) that protrudes from the front surface and tilts downward toward the first spindle 45 in the front-rear direction. A protrusion 72 having an inclined surface 71 is provided. In addition, a flat riding surface 73 is formed at the end of the first inclined surface 71 along the rotational direction of the first gear cam member 64. Further, as shown in FIGS. 3 to 5, a protrusion 74 that protrudes to the side of the protrusion 72 is provided on the rear side of the protrusion 72 (the diagonally rear side in FIG. 5). The protrusion 74 is used to detect that the first gear cam member 64 is at the origin position. In addition, an inclined guide portion 75 is provided on the front surface of the first gear cam member 64 so as to face the protruding portion 72 and protrude from the front surface with the cylindrical portion 62 protruding from the front surface interposed therebetween. The inclined guide portion 75 has a first inclined guide surface 76 that is inclined upward toward the first spindle 45 in the front-rear direction of the inclined guide portion 75. On the other hand, as shown in FIG. 4, a second inclined surface 77 that protrudes from the front surface and inclines toward the second spindle 29 in the front-rear direction on the front surface of the second gear cam member 65 (the oblique back side in FIG. 4). A projecting portion 78 is provided. The second inclined surface 77 is located at a position facing the first inclined surface 71 in the vertical direction when the first gear cam member 64 and the second gear cam member 65 are engaged and rotated. It is formed on the front side. Further, an inclined guide portion 56 is provided on the front surface of the second gear cam member 65 so as to protrude from the front surface so as to face the protruding portion 78 with a through hole provided at the center of the second gear cam member 65 interposed therebetween. It has been. The inclined guide portion 56 includes a second inclined guide surface 57 that is inclined toward the second spindle 29 in the front-rear direction in a direction opposite to the second inclined surface 77.

  As shown in FIG. 2, in the housing member 63, a first moving member 66 into which the first spindle 45 is press-fitted is disposed in front of the first gear cam member 64 (on the right side in FIG. 2). The first moving member 66 includes an upright disk-shaped main body 79 (see FIG. 3), and a protruding portion 80 (FIG. 3) protruding from the rear surface of the main body 79 on the rear surface (oblique front side in FIG. 3). See). The protruding portion 80 is formed with a third inclined surface 81 (see FIG. 3) that is inclined in a direction opposite to the first inclined surface 71 of the first gear cam member 64 in correspondence with the first inclined surface 71. ing. A flat surface 85 (see FIG. 3) that is flat along the circumferential direction of the main body 79 is formed at the end of the third inclined surface 81. Further, the rear surface of the main body 79 has a shaft portion 23 that protrudes from the rear surface and is inserted into the cylindrical portion 62 of the first gear cam member 64, and protrudes from the rear surface so as to face the protruding portion 80. Is provided. The protrusion 43 is formed with a fifth inclined surface 44 that is inclined in a direction opposite to the first inclined guide surface 76 of the first gear cam member 64 in correspondence with the first inclined guide surface 76. In addition, the main body 79 has through holes 83 and 83 (see FIGS. 3 and 4) penetrating the main body 79 at the left and right positions with the press-fitting hole 82 (see FIGS. 2 and 4) of the first spindle 45 interposed therebetween. ) Is provided. A bar-shaped member 84 (see FIG. 3) that protrudes from the back side of the front surface of the housing member 63 toward the rear portion of the housing member 63 is inserted into each through hole 83. As a result, the first moving member 66 is supported by being supported by the respective rod-shaped members 84.

  On the other hand, as shown in FIG. 2, the second moving member 67 is disposed in the housing member 63 in front of the second gear cam member 65 (on the right side in FIG. 2). The second moving member 67 includes an upright flat plate-like main body 86 (see FIG. 3), and a protrusion 87 protruding from the rear surface is provided on the rear surface of the main body 86 (oblique front side in FIG. 3). Yes. The protruding portion 87 is formed with a fourth inclined surface 88 (see FIG. 3) that is inclined in a direction opposite to the second inclined surface 77 of the second gear cam member 65 in correspondence with the second inclined surface 77. ing. Further, the rear surface of the main body 86 is provided with a protruding portion 16 that protrudes from the rear surface so as to face the protruding portion 87 with the through hole 10 provided at the center of the main body 86 interposed therebetween. The protruding portion 16 is formed with a sixth inclined surface 17 that is inclined in a direction opposite to the second inclined guide surface 57 of the second gear cam member 65 in correspondence with the second inclined guide surface 57. In addition, on the front surface of the main body 86 (right side in FIG. 2), rod-shaped insertion members 89 and 89 (see FIGS. 2, 4 and 5) protruding from the front surface are provided in two upper and lower stages. As shown in FIG. 2, one insertion member 89 is inserted into the second communication hole 70 of the housing member 63. The other insertion member 89 is inserted through a third communication hole 90 provided to communicate the inside and the outside of the housing member 63 below the second communication hole 70. By doing so, the second moving member 67 is supported by being supported by the housing member 63.

  As shown in FIGS. 2 and 3, a micro switch 92 is disposed in the lower portion of the housing member 63, and the detection piece 93 (see FIG. 5) of the micro switch 92 is projected from the first gear cam member 64. It was made to be located on the movement locus of the part 74. In the present embodiment, when the detection piece 83 is pushed down to the corner of the protrusion 74 and the micro switch 92 is turned on, it is detected that the first gear cam member 64 is at the origin position.

  As shown in FIGS. 2 and 3, an insulating electric circuit board mounting member 94 (hereinafter referred to as “mounting member 94”) is disposed behind the first gear cam member 64 (in FIG. 2). The mounting member 94 is fixed inside the housing member 63. An electric circuit board 96 on which the position sensor 95 is mounted is screwed to the surface of the mounting member 94. The position sensor 95 is used for detecting a rotation angle of a rotation shaft 97 of the motor M described later. The rotary shaft 97 shown in FIG. 2 is coaxially connected to the rotary variable resistor of the position sensor 95, and is inserted through the through hole of the mounting member 94 and connected to the first gear cam member 64. In the present embodiment, the controller detects the rotation angle of the rotary shaft 97 based on the output voltage of the rotary variable resistor that changes as the rotary shaft 97 rotates. Further, as shown in FIGS. 2 to 4, a metal closing plate 98 for closing the opening on the rear surface is screwed to the housing member 63. The motor M is fixed to the housing member 63 by screwing a screw member inserted through the through hole of the casing of the motor M and the through hole of the closing plate 98 into the screw hole of the housing member 63. In this state, the rotating shaft 97 of the motor M projects into the housing member 63 from the through hole 99 of the closing plate 98. The closing plate 98 is fixed to the inside of the stove body 2 with screws.

  As shown in FIGS. 6 and 7, the second gas amount adjustment unit 19 includes a second heating power adjustment mechanism 101, an opening / closing mechanism 21, and a spindle drive mechanism 22. For convenience of explanation, the left side of FIGS. 6 and 7 is the front side of the second gas amount adjustment unit 19, and the right side of FIGS. 6 and 7 is the rear side of the second gas amount adjustment unit 19. Note that the opening / closing mechanism 21 and the spindle driving mechanism 22 provided in the second gas amount adjusting unit 19 have the same configuration as the opening / closing mechanism 21 and the spindle driving mechanism 22 of the first gas amount adjusting unit 18, and therefore description thereof is omitted. . The second thermal power adjustment mechanism 101 includes a first body member 102 and a second body member 103 to which the first body member 102 is coupled. The first body member 102 includes a metal housing 104 that extends in the front-rear direction (the left-right direction in FIGS. 6 and 7). As shown in FIG. 7, a main gas flow path 105 is formed in the front-rear direction on the lower side inside the housing 104. As shown in FIG. 9, the outflow port 106 of the main gas flow path 105 opens to the front surface of the housing 104. As shown in FIG. 7, a gas pressure chamber 107 is formed in the upper rear portion of the housing 104, and a gas governor 108 is provided in the gas pressure chamber 107. The gas governor 108 includes a diaphragm 109 that partitions the gas pressure chamber 107 into a gas inlet side and a gas outlet side, and a governor valve body 110 that is connected to the diaphragm 109 and can adjust the opening of the gas flow path in the gas pressure chamber 107. And. The gas governor 108 stabilizes the gas pressure by moving the governor valve body 110 and the diaphragm 109 to a position where the gas pressure received from the gas inlet side received by the governor valve body 110 and the gas pressure received by the diaphragm 109 are balanced. ing. As shown in FIG. 7, the gas outlet side of the gas pressure chamber 107 communicates with the inlet 111 of the main gas channel 105. On the other hand, the gas inlet side of the gas pressure chamber 107 communicates with a gas receiving path 112 that is formed inside the housing 104 and opens to the lower surface of the housing. As shown in FIG. 7, the gas receiving path 112 is connected to the gas outlet path 60 of the opening / closing mechanism 21 by fixing the housing 104 to the housing 34 of the opening / closing mechanism 21. The gas governor 108 is an example of the pressure adjusting means of the present invention.

  As shown in FIG. 9, a first branch channel 113 and a second branch channel 114 extending in parallel with the main gas channel 105 are formed in the housing 104 above the main gas channel 105. . The first branch channel 113 and the second branch channel 114 are arranged in parallel in the left-right direction of the housing 104 at a predetermined interval, and the outlet 115 and the second branch channel of the first separation channel 113 are arranged. The outlet 116 of 114 opens to the front surface of the housing 104 at a position above the outlet 106 of the main gas flow path 105. The inlet of the first branch channel 113 communicates with the downstream side of the main gas channel 105 via the needle orifice 119 (see FIG. 9), and the inlet of the second branch channel 114 is the needle orifice 120. It communicates with the downstream side of the main gas channel 105 via (see FIG. 8). Thereby, the first and second branch flow paths 113 and 114 are branched from the main gas flow path 105.

  As shown in FIGS. 6 to 9, the second body member 103 includes a metal-made housing 121 that extends in a direction substantially orthogonal to the first body member 102. In FIG. 10, the left side is the right side of the housing 121, and the right side is the left side of the housing 121. As shown in FIG. 10, the housing 121 includes a first recess 122 that opens to the rear surface of the housing 121, a second recess 123, and a third recess 124. The first recess 122 extends from the upper right corner of the housing 121 to the middle portion in the left-right direction of the housing 121 and the first vertical recess extends from the upper right corner of the housing 121 to the middle portion of the housing 121 in the vertical direction. 127 is formed. The second recessed portion 123 includes a second horizontal recessed portion 128 that extends in the left-right direction beyond the intermediate portion in the left-right direction below the first horizontal recessed portion 126 across the partition wall in the housing 121 and beyond the intermediate portion. It is formed to have an upstanding recess 129 that is connected to the end of the horizontal recess 128 and extends upward in the vertical direction in the housing 121 from the end. The third recess 124 is formed in the housing 121 so as to extend between the upper left corner and the lower left corner.

  As shown in FIGS. 9 and 11, the housing 121 has a fourth recess 132 that opens in the shape of a long hole in the left-right direction on the front surface of the housing 121 and a fifth recess 133 that opens in a circular shape. They are arranged side by side. As shown in FIG. 10, a communication path 135 extending in the front-rear direction of the housing 121 (front-rear direction in FIG. 7) is formed between the second recess 123 and the third recess 124 on the lower inside of the housing 121. Yes. The communication path 135 includes a cylindrical portion 136 (see FIG. 10) that protrudes outward from the rear surface of the housing 121, and an inflow port 137 is provided at the tip of the cylindrical portion 136. As shown in FIG. 7, in a state where the first body member 102 and the second body member 103 are connected, the cylindrical portion 136 (inflow port 137) shown in FIG. 8 is inserted into the main gas flow path 105 shown in FIG. . Thereby, the inflow port 137 communicates with the outflow port 106 of the main gas flow path 105. As shown in FIGS. 7 and 11, the outlet 138 of the communication passage 135 communicates with the inside of the fourth recess 132. Further, in the state where the first body member 102 and the second body member 103 are connected, the outlet 115 of the first branch flow path 113 shown in FIG. 9 communicates with the standing recess 129 of the second recess 123 shown in FIG. The outlet 116 of the third branch flow path 114 shown in FIG. 9 communicates with the third recess 124 shown in FIG. The inlet 137 of the communication path 135 is an example of one end of the communication path of the present invention.

  Further, as shown in FIGS. 10, 11 and 14, the right end of the second horizontal recess 128 of the second recess 123 and the inside of the fourth recess 132 are communicated with each other through a through-hole 139 penetrating each other. As shown in FIG. 13, the third recess 124 and the fourth recess 132 communicate with each other through a through hole 140 that penetrates each other. In the present embodiment, as shown in FIG. 11, the two through holes 139 and 140 are arranged in parallel at a predetermined interval in the left-right direction of the housing 121 with the outlet 138 of the communication path 135 interposed therebetween. As shown in FIGS. 6 and 9, the first solenoid valve 141 and the second solenoid valve 142 are juxtaposed and screwed to the front surface of the housing 121 so as to close the opening of the fourth recess 132 through packing. ing. The first electromagnetic valve 141 is used to open and close the through hole 139 (see FIG. 11) in the fourth recess 132. The first electromagnetic valve 141 includes a valve body that can be moved forward and backward with respect to the through hole 139. The through hole 139 is opened and closed by contacting or separating the valve body from a valve seat provided around the through hole 139. The second electromagnetic valve 142 is used to open and close the through hole 140 in the fourth recess 132. Similarly to the first solenoid valve 141, the second solenoid valve 142 opens and closes the through hole 140.

  Further, as shown in FIGS. 8 and 9, the left end of the second horizontal recess 128 (see FIG. 8) of the second recess 123 and the inside of the fifth recess 133 (see FIG. 9) penetrate each other. The through holes 145 (see FIGS. 9 and 10) communicate with each other. In addition, as shown in FIGS. 8, 10 and 11, the lower end of the first vertical recess 127 (see FIG. 8) of the first recess 122 and the inside of the fifth recess 133 (see FIG. 11) The through holes 146 (see FIG. 10 and FIG. 11) that penetrate each other communicate with each other. As shown in FIGS. 6 and 9, a third electromagnetic valve 143 is screwed to the front surface of the housing 121 so as to close the opening of the fifth recess 133 via a packing. The third electromagnetic valve 143 is used to open and close the through hole 146 (see FIG. 11) in the fifth recess 133. The third solenoid valve 143 also opens and closes the through hole 146 in the same manner as the first and second solenoid valves 141 and 142.

  Further, as shown in FIG. 6, the housing 121 is substantially in the center in the left-right direction (the vertical direction in FIG. 6, the lower side in FIG. In addition, the first gas outlet 150 is opened. The first gas outlet 150 communicates with an end of the first horizontal recess 126 (see FIG. 10) on the intermediate side of the housing 121 in the left-right direction (left-right direction in FIG. 10). In addition, as shown in FIG. 6, a second gas outlet 151 is opened at the left end of the housing 121 in the left-right direction and on the rear side of the upper surface of the housing 121. As a result, the first gas outlet 150 and the second gas outlet 151 are juxtaposed in the left-right direction. As shown in FIGS. 10 and 13, the second gas outlet 151 communicates with the inside of the third recess 124. In the present embodiment, the first gas outlet 150 is connected to the upper burner in the grill portion 8, and the second gas outlet 151 is connected to the lower burner in the grill portion 8.

  As shown in FIGS. 7 to 9, the housing 121 is screwed with a metal closing plate 154 that closes the first to third recesses 122 to 124 via the packing 153. The housing 104 of the first body member 102 is screwed into a screw hole of the housing 121 with a screw member inserted through the through hole provided in the flange portion of the housing 104 and the through hole of the closing plate 154 and the packings 153 and 155. By wearing, it is fixed to the housing 121. Further, the closing plate 154 and the packings 153 and 155 are provided with through holes at positions corresponding to the outlet 115 of the first branch channel 113 and the outlet 116 of the second branch channel 114 of the first body member 102. Yes. Thus, the outlet 115 can be communicated with the second recess 123 (see FIG. 8) of the housing 121, and the outlet 116 can be communicated with the third recess 124 (see FIG. 8) of the housing 121.

  In the second body member 103 configured as described above, as described below, a gas supply path (first gas supply path 156, see FIG. 15) of the first supply gas supplied to the upper burner of the grill portion 8. And a gas supply path (second gas supply path 157, see FIG. 15) for the second supply gas to be supplied to the lower burner. As will be described later, the first supply gas passes through the inlet 137 of the communication path 135 from the main gas flow path 105 of the first body member 102 shown in FIG. 4 flows out into the recess 132. The first supply gas channel 156 includes a first channel R1, a second channel R2, a third channel R3, a fourth channel R4, a fifth channel R5, and a sixth channel R6. And a seventh flow path R7. The first flow path R1 (see FIG. 14) allows the first supply gas that has flowed into the fourth recess 132 to pass through the through-hole 139 via the first electromagnetic valve 141 and to turn the communication path 135 back (housing). 121 is a flow path that is guided in the direction from the front side to the rear side of 121 and flows into the second horizontal recess 128 (second recess 123, see FIG. 10). In this embodiment, as shown in FIG. 11, the outlet 138 of the communication path 135 communicates with the inside of the fourth recess 132, so that the outlet 138 communicates with the through hole 139. The outflow port 138 is an example of the other end of the communication path of the present invention, and the through hole 139 is an example of the inflow port of the first gas supply path. The fourth recess 132 is an example of the concave space of the present invention.

  The second flow path R2 (see FIG. 10, the right side of FIG. 10 is the left side of the housing 121) allows the first supply gas in the second horizontal recess 128 to flow from the left end of the second horizontal recess 128 to the left-right direction of the housing 121. The flow path leading to the right side (the right end of the second horizontal recess 128). The left end portion of the second horizontal recess 128 is an example of the end portion of the first flow path of the present invention, and the right side in the left-right direction of the housing 121 is separated from the outlet of the first gas supply path of the present invention. It is an example of a direction.

  Subsequently, in the third flow path R3 (see FIG. 9), the first supply gas led to the right end portion of the second horizontal recess 128 (see FIG. 10) passes through the through hole 145 (see FIGS. 9 and 10). Is a flow path that is guided in the direction opposite to the direction in which the communication path 135 is folded back (the direction from the rear side to the front side of the housing 121) and flows into the fifth recess 133.

  The fourth flow path R4 (see FIG. 11) passes the first supply gas in the fifth recess 133 (see FIG. 11) through the through hole 146 (see FIG. 11) via the third electromagnetic valve 143. It is a flow path that is guided in the folding direction of the communication path 135 and flows into the lower end of the first vertical recess 127 (first recess 122, see FIG. 10). Since the fourth flow path R4 in which the third electromagnetic valve 143 is disposed is downstream of the first flow path R1 in which the first electromagnetic valve 141 is disposed, the third electromagnetic valve 143 is downstream of the first electromagnetic valve 141. Will be placed on the side. In addition, the formation position of the through-hole 146 in the 5th recessed part 133 is an example of the edge part of the 3rd flow path of this invention.

  The fifth flow path R5 (see FIG. 10) is a flow path for guiding the first supply gas in the first vertical recess 127 to the upper end of the first vertical recess 127 along the formation direction of the first vertical recess 127. It is. In addition, the lower end part in the 1st vertical recessed part 127 is an example of the edge part of the 4th flow path of this invention.

  The sixth flow path R6 (see FIG. 10) causes the first supply gas that has reached the upper end portion in the first vertical recess 127 to flow into the first horizontal recess 126 (see the first recess 122, FIG. 10; the left side of FIG. 10). Is a flow path that leads from the right end of the right side of the housing 121 to the left side in the left-right direction of the housing 121 and faces the first gas outlet 150 that communicates with the first horizontal recess 126. In the present embodiment, as shown in FIG. 10, the sixth flow path R6 is juxtaposed with the second flow path R2 above the second flow path R2.

  On the other hand, as described later, the second supply gas also passes through the inlet 137 of the communication path 135 from the main gas flow path 105 of the first body member 102 shown in FIG. And flows out from the outlet 138 into the fourth recess 132. The second gas supply path 157 includes a seventh flow path R7 and an eighth flow path R8. The seventh flow path R7 (see FIG. 11) allows the second supply gas that has flowed into the fourth recess 132 to pass through the through hole 140 (see FIG. 11) via the second electromagnetic valve 142, and communicates with the seventh flow path R7. 135 is a flow path that is guided in the folding direction of 135 and flows into the third recess 124 (see FIG. 10). In the present embodiment, as shown in FIG. 11, the outflow port 138 of the communication path 135 communicates with the inside of the fourth recess 132, so that the outflow port 138 communicates with the through hole 140. The through hole 140 is an example of an inlet of the second gas supply path of the present invention.

  The eighth flow path R8 (see FIGS. 10 and 13) guides the second supply gas in the third recess 124 to the upper end of the third recess 124 and communicates with the third recess 124. The flow path is directed toward the gas outlet 151. In the present embodiment, as shown in FIG. 6, the second gas outlet 151 corresponding to the end of the second gas supply path 157 and the first gas outlet 150 corresponding to the end of the first gas supply path 156 are connected to the left and right sides of the housing 121. The end of the first gas supply path 156 and the end of the second gas supply path 157 are provided side by side in the housing 121 by arranging in parallel in the direction (vertical direction in FIG. 6). In addition, the formation position of the through-hole 140 in the 4th recessed part 132 is an example of the edge part of the 7th flow path of this invention. The first gas outlet 150 is an example of the outlet of the first gas supply path of the present invention, and the second gas outlet 151 is an example of the outlet of the second gas supply path of the present invention.

  Further, the housing 121 (second body member 103) has a first bypass channel 158 (see FIG. 15) communicating with the first branch channel 113 of the first body member 102, as will be described below. A second bypass channel 159 (see FIG. 15) communicating with the second branch channel 114 of the first body member 102 is formed. The first bypass channel 158 is formed by the second to sixth channels R2 to R6 described above. Therefore, the first bypass flow path 158 is formed by the second to sixth flow paths R2 to R6 excluding the first flow path R1 where the first electromagnetic valve 141 is disposed, so that the first branch flow path 113 is circulated. The first supply gas can be circulated through the first gas supply path 156 (second to sixth flow paths R2 to R6), bypassing the first electromagnetic valve 141. On the other hand, the second bypass channel 159 is formed by the above-described eighth channel R8. Therefore, the second bypass flow channel 159 is formed by the eighth flow channel R8 excluding the seventh flow channel R7 in which the second electromagnetic valve 142 is disposed, so that the second supply gas flowing through the second branch flow channel 114 is changed. The second electromagnetic valve 142 can be bypassed to flow through the second gas supply path 157 (eighth flow path R8).

  Next, operations of the first gas amount adjusting unit 18 and the second gas amount adjusting unit 19 will be described. 16 to 23 show the operation of the first gas amount adjusting unit 18. In FIG. 16 to FIG. 23, the hatched lines indicating the cross sections of the housings 24 and 34 and the housing member 63 are omitted. After the main power switch 15 (see FIG. 1) of the built-in stove 1 is turned on, for example, when the combustion amount adjusting body 12 (see FIG. 1) of the left stove 5 is projected from the front surface of the stove body 2, the controller The motor M of the first gas amount adjustment unit 18 is energized. Accordingly, the first gear cam member 64 connected to the rotation shaft 97 of the motor M shown in FIG. 16 is driven to rotate. Then, the third inclined surface 81 of the first moving member 66 shown in FIG. 5 is guided in contact with the first inclined surface 71 of the rotating first gear cam member 64, and the first moving member 66 The fifth inclined surface 44 is guided in contact with the first inclined guide surface 76 of the rotating first gear cam member 64. Thereby, the first moving member 66 and the first moving member 66 press-fitted into the first moving member 66 as shown in FIGS. 16 and 17 while uniformly contacting the first gear cam member 64. The spindle 45 moves forward. When the rotation angle of the rotation shaft 97 of the motor M detected by the position sensor 95 (see FIG. 17) reaches 55 ° (see FIG. 24), the inner cylinder 48 (connected to the first spindle 45). As shown in FIG. 17, the forward movement of the inner cylinder 48 is transmitted to the rotating body 49 and the pushing member 50. Then, the pushing member 50 pushes the valve body 39 of the magnet electromagnetic valve 37 to open the valve chamber 36. At this time, as shown in FIG. 17, the first spindle 45 advances the attracting portion 40 of the magnet electromagnetic valve 37 to the attracting surface of the electromagnet 38 via the valve body 39. In addition, the Mg valve in FIG. 24 means the magnet electromagnetic valve 37.

  Further, when the first gear cam member 64 rotates and the rotation angle of the rotation shaft 97 detected by the position sensor 95 reaches 85 ° (see FIG. 24), as shown in FIG. The first spindle 45 advanced together with it resists the biasing force of the coil spring 41 and advances the valve body 39. By doing so, the magnet electromagnetic valve 37 is fully opened.

  As shown in FIG. 18, when the first gear cam member 64 rotates after the magnet electromagnetic valve 37 is fully opened and the rotation angle of the rotation shaft 97 detected by the position sensor 95 becomes 105 ° (see FIG. 24). As shown in FIG. 19, the absorption spring 55 provided between the rotating body 49 and the pushing member 50 is compressed. Thereafter, the first spindle 45 moves forward together with the first moving member 66, and the inner cylinder 48 connected to the first spindle 45 advances the rotating body 49. The rotating body 49 that has moved forward rotates and retracts while being guided by the inclined surfaces provided in the inner cylinder 48 and the outer cylinder 47. Thereby, the pushing member 50 will be in the lock release state of the magnet solenoid valve 37 from which the valve body 39 of the magnet solenoid valve 37 separated.

  Further, when the first gear cam member 64 rotates, the third inclined surface 81 of the first moving member 66 contacts the first inclined surface 71 of the rotating first gear cam member 64 as shown in FIG. When the rotation angle of the rotation shaft 97 guided by contact and detected by the position sensor 95 reaches 145 ° (see FIG. 24), the third inclined surface 81 of the first moving member 66 is moved as shown in FIG. The flat surface 85 formed at the end of the third inclined surface 81 is separated from the first inclined surface 71 of the first gear cam member 64 and rides on the riding surface 73 formed at the end of the first inclined surface 71. At this time, from the state immediately before the opening / closing valve 58 shown in FIG. 20 is opened, the opening / closing valve 58 (M valve in FIG. 24) is moved by the pushing member 61 (see FIG. 20) provided on the first spindle 45. As a result of the pushing, the on-off valve 58 is fully opened and the gas supply path 35 is opened. As a result, the gas supplied from the gas supply pipe to the valve chamber 36 through the gas inlet path 42 of the opening / closing mechanism 21 flows through the gas supply path 35 toward the gas outlet portion 60 of the opening / closing mechanism 21. The gas supply path 35 is an example of a gas supply path to the thermal power adjustment mechanism of the present invention.

  In the fully opened state of the on-off valve 58, as shown in FIG. 26, the second inclined surface 77 of the second gear cam member 65 that has meshed with the first gear cam member 64 and rotated is It begins to contact the fourth inclined surface 88. At the same time, the first gear cam member 64 is rotationally driven while the riding surface 73 (see FIG. 27) of the first gear cam member 64 is in contact with the flat surface 85 (see FIG. 27) of the first moving member 66. The As shown in FIG. 27, the fourth inclined surface 88 of the second moving member 67 is guided in contact with the second inclined surface 77 of the rotating second gear cam member 65, and the second movement is performed. The second moving member 67 moves forward by the sixth inclined surface 17 of the member 67 being guided in contact with the second inclined guiding surface 57 of the rotating second gear cam member 65. Accordingly, as shown in FIG. 21, the insertion member 89 of the second moving member 67 pushes the second spindle 29 forward, and the needle valve 30 connected to the second spindle 29 is moved to the coil spring 31. It is moved to the intermediate opening position against the urging force. At that time, the gas that has passed through the gas outlet passage 60 passes through the gas receiving passage 27 and the gas supply passage 25 of the first heating power adjusting mechanism 20 and passes from the gas outlet passage 28 to the burner provided on the left stove 5. Supplied. Thus, when the rotation angle of the rotating shaft 97 detected by the position sensor 95 reaches 195 ° (see FIG. 24), the gas supplied to the burner is ignited by the discharge of an igniter (not shown) and combustion starts. Is done. By doing in this way, the firepower of a burner can be adjusted to medium fire. When the rotation angle reaches 195 °, the controller stops energization of the motor M, and the forward movement of the first and second moving members 66 and 67 is completed.

  Further, when the combustion amount adjusting body 12 is rotated in the forward direction, the riding surface 73 (see FIG. 27) of the first gear cam member 64 is the flat surface 85 (see FIG. 27) of the first moving member 66. )), The first gear cam member 64 is rotationally driven. At the same time, as shown in FIGS. 27 and 28, the fourth inclined surface 88 of the second moving member 67 is in contact with and guided by the second inclined surface 77 of the rotating second gear cam member 65. The second moving member 67 moves forward. As a result, as shown in FIG. 22, the insertion member 89 of the second moving member 67 moves the needle valve 30 to the maximum opening position side against the biasing force of the coil spring 31 via the second spindle 29. Move. Thereby, when the rotation angle of the rotary shaft 97 detected by the position sensor 95 becomes 255 ° (195 ° + 60 °, see FIG. 24), the burner's heating power can be adjusted to a strong fire. Further, the combustion amount adjusting body 12 is rotated in the reverse direction so that the third inclined surface 81 of the first moving member 66 comes into contact with and guides the first inclined surface 71 of the first gear cam member 64 rotating in the reverse direction. As a result, the first moving member 66 moves backward. At the same time, the fourth inclined surface 88 of the second moving member 67 is guided in contact with the second inclined surface 77 of the second gear cam member 65 rotating in the reverse direction, so that the second moving member 67 moves backward. The second spindle 29 is also retracted by the biasing force of the coil spring 31. Along with this, the needle valve 30 moves to the minimum opening position side (see FIG. 20). As a result, the rotation angle of the rotating shaft 97 detected by the position sensor 95 becomes 145 ° (see FIG. 24), and the heating power of the burner can be adjusted to low heat. In the present embodiment, when the opening position of the needle valve 30 is changed by the advance / retreat movement of the second spindle 29, the amount of gas passing through the gas supply path 25 can be adjusted stepwise.

  FIG. 23 shows a stopped state when the first gas amount adjusting unit 18 is abnormal. Even if a power supply abnormality occurs due to battery exhaustion or the like from the fully open state of the on-off valve 58, the pushing member 50 is separated from the valve body 39 of the magnet electromagnetic valve 37 in the fully open state. For this reason, when the current is not supplied to the electromagnet 38 due to the power supply abnormality, and the adsorption between the adsorption portion 40 of the magnet electromagnetic valve 37 and the electromagnet 38 is released, as shown in FIG. The valve chamber 36 can be closed by closing the valve. Therefore, the gas can be prevented from flowing into the gas supply path 35 from the valve chamber 36. In this embodiment, since the on-off valve 58 is opened after the magnet electromagnetic valve 37 is fully opened, the on-off valve 38 is opened before the magnet electromagnetic valve 37 is fully opened, and the gas supply path 35 is opened. Can be prevented.

  When the main power switch 15 of the built-in stove 1 is turned off or the combustion amount adjuster 12 is pushed into the stove body 2 and accommodated, the controller reverses the energization direction to the motor M, and the motor M The gear cam member 64 is reversely driven. Along with this, the third inclined surface 81 of the first moving member 66 is guided in contact with the first inclined surface 71 of the rotating first gear cam member 64, and the first moving member 66 The first spindle 45 that has been press-fitted into the retracts. Then, the on-off valve 58 closes the gas supply path 35. At this time, the inner cylinder 48 and the rotating body 50 connected to the first spindle 45 are also retracted and returned to the stop position of the first gas amount adjusting unit 18 shown in FIG. At this time, as shown in FIG. 5, the detection piece 93 of the micro switch 92 is pushed down by the protrusion 74 of the first gear cam member 64, so that the micro switch 92 is turned on. The controller determines that the first gear cam member 64 has returned to the origin position by detecting this ON state.

  When the first gear cam member 64 is driven in reverse rotation, the first gear cam member 64 meshes with the second gear cam member 65 and reversely rotates. Then, the 4th inclined surface 88 of the 2nd moving member 67 contact | abuts to the 2nd inclined surface 77 of the 2nd gear cam member 65 which rotates, and is guided, and the 2nd moving member 67 reverse | retreats. Along with this, the second spindle 29 moves backward to move the needle valve 30 connected to the second spindle 29 to the minimum opening position side.

  In addition, although the example of the heating power adjustment of the burner when rotating the combustion amount adjusting body 12 of the left stove 5 has been described here, the turning operation of the combustion amount adjusting body 13 of the right stove 6 or the rear stove 7 When the combustion amount adjusting body 14 is rotated, the heating power of the burner on the right stove 6 and the burner on the rear stove 7 can be adjusted in the same manner as when the combustion amount adjusting body 12 is rotated.

  On the other hand, in the second gas amount adjustment unit 19 shown in FIG. 7, when the gas supply path 35 is opened, for example, as in the case of the operation example of the first gas amount adjustment unit 18 in FIG. The gas supplied from the pipe passes through the gas outlet passage 60 of the opening / closing mechanism 21 and the gas receiving passage 112 of the second heating power adjustment mechanism 101 as the first supply gas and the second supply gas, and toward the gas pressure chamber 107. Flowing. The first and second supply gases flow toward the main gas flow path 105 after the gas pressure is stabilized by the gas governor 108 in the gas pressure chamber 107. Thereafter, the first and second supply gases flow through the communication path 135 after passing through the main gas flow path 105, and flow out into the fourth recess 132. In addition, the first supply gas passes through the first branch passage 113 (see FIGS. 9 and 15) that communicates with the main gas passage 105 through the needle orifice 119 (see FIGS. 9 and 15). Flowing. Further, the second supply gas flows in the second branch channel 114 (see FIGS. 9 and 15) that communicates with the main gas channel 105 via the needle orifice 120 (see FIGS. 8 and 15).

For example, when the combustion amount adjusting body 11 (see FIG. 1) of the grill portion 8 is protruded from the front of the stove body 2, the first solenoid valve 141 and the third solenoid valve 143 (see FIGS. 9 and 15) according to commands from the controller. .) Opens. Accordingly, the first supply gas is guided from the fourth recess 132 to the first gas outlet 150 (see FIG. 9) through the first to sixth flow paths R1 to R6. In addition to this, when the combustion amount adjusting body 11 is protruded from the front, the first supply gas flowing through the first branch passage 113 via the needle orifice 119 (see FIGS. 9 and 15) The first electromagnetic valve 141 is bypassed and flows through the first bypass flow path 158 (second to sixth flow paths R2 to R6, see FIG. 15) and is guided to the first gas outlet 150. By igniting each first supply gas supplied from the first gas outlet 150 to the upper burner, the heating power of the upper burner can be adjusted to a strong fire.
Further, when the combustion amount adjusting body 11 protrudes from the front surface of the stove body 2 as described above, the second electromagnetic valve 142 (see FIGS. 9 and 15) is opened by a command from the controller. Thus, the second supply gas is guided from the fourth recess 132 to the second gas outlet 151 (see FIG. 11) through the seventh and eighth flow paths R7 and R8 (see FIGS. 10 and 11). . In addition, the second supply gas that has flowed through the second branch flow path 114 via the needle orifice 120 bypasses the second electromagnetic valve 142 (see FIGS. 9 and 15), and the second bypass flow path. 159 (eight flow path R8, see FIG. 15) is introduced to the second gas outlet 151. By igniting each second supply gas supplied from the second gas outlet 151 to the lower burner, the heating power of the lower burner can be adjusted to a strong fire.

On the other hand, when the combustion amount adjuster 11 is turned to the low burn position of the upper burner and the lower burner, the first electromagnetic valve 141 is closed and the third electromagnetic valve 143 is opened by a command from the controller. Thereby, in the low-fire position, the gas amount of the first supply gas led to the first gas outlet 150 is reduced as compared with the case where the combustion amount adjusting body 11 is protruded from the front of the stove body 2 (high-burner high-fire position). Can be made. By supplying the first supply gas to the upper burner and igniting the first supply gas, the heating power of the upper burner can be adjusted to low heat.
Further, when the combustion amount adjusting body 11 is turned to the low heat position as described above, the second electromagnetic valve 142 is closed by a command from the controller. Thereby, in the low-fire position, the amount of the second supply gas led to the second gas outlet 151 can be reduced as compared with the case where the combustion amount adjusting body 11 is protruded from the front surface (high-fire position of the lower burner). it can. By supplying the second supply gas to the lower burner and igniting the second supply gas, the heating power of the lower burner can be adjusted to low heat.
Subsequently, when the heating power of the upper burner and the lower burner is adjusted from a low heat to a high fire, the combustion amount adjusting body 11 is rotated to the high fire position. Then, similarly to the case where the combustion amount adjusting body 11 is protruded from the front surface of the stove body 2, the heating power of the upper burner and the lower burner is adjusted to a strong fire.

  Further, when the combustion adjusting body 11 is rotated to the cooking mode setting position suitable for cooking using the Dutch oven container, the lower burner is operated in the same manner as when the combustion amount adjusting body 11 is rotated to the low fire position. Adjust the fire power of the lower burner to low heat. On the other hand, for the upper burner, in the same manner as when the burn-up adjusting body 11 is rotated to the low heat position, after a predetermined time has elapsed after the heating power of the upper burner has been adjusted to low heat, 3 The solenoid valve 143 (see FIGS. 9 and 15) is closed. Thereby, the 3rd electromagnetic valve 143 closes the 1st gas supply path 156 (refer 4th flow path R4, FIG.11 and FIG.15). As a result, the supply of the first supply gas to the upper burner is stopped, and the upper burner can be extinguished instantaneously.

  When the upper burner and the lower burner are extinguished, the combustion amount adjusting body 11 is pushed into the stove body 2 and accommodated. Then, the first to third electromagnetic valves 141 to 143 are closed according to a command from the controller. Thereby, the first gas supply path 156 and the second gas supply path 157 are closed, the supply of the first supply gas to the upper burner is stopped, and the supply of the second supply gas to the lower burner is stopped. As a result, the upper and lower burners can be extinguished.

<Effect of this embodiment>
In the built-in stove 1 of the present embodiment, the spindle drive mechanism 22 is driven using a single motor M, and the first spindle 45 and the second spindle 29 are moved forward and backward, so that the opening and closing shown in FIG. Both the opening and closing of the gas supply path 35 of the mechanism 21 and the opening adjustment of the gas supply path 25 of the first heating power adjustment mechanism 20 can be performed. Therefore, a mechanism for both opening and closing the gas supply path 35 and adjusting the opening of the gas supply path 25 is simplified.

  Further, when the first gear cam member 64 and the first moving member 66 are used, the rotational force of the motor M connected to the first gear cam member 64 can be easily changed to a force for moving the first spindle 45 forward. Can be converted. Further, when the first and second gear cam members 64 and 65 and the second moving member 67 are used, the rotational force of the motor M can be easily converted into a force for moving the second spindle 29 forward.

  Further, the position sensor 95 for detecting the rotation angle of the rotation shaft 97 of the motor M is provided, so that the rotation angle of the rotation shaft 97 can be reliably grasped based on the output voltage of the rotary variable resistor included in the position sensor 95. it can.

  In addition, it is possible to reliably detect that the first gear cam member 64 is at the origin position with a simple configuration in which the protrusion 74 of the first gear cam member 64 pushes down the detection piece 93 of the micro switch 92.

  In addition, since the motor M, the position sensor 95, and the micro switch 92 can be collectively arranged around the housing member 63, the arrangement space for the motor M and the like can be reduced.

  In the built-in stove 1 of the present embodiment, the spindle drive mechanism 22 is provided, so that the motor M opens the gas supply path 35 of the opening / closing mechanism 21 shown in FIG. 3 and then the gas supply path of the first heating power adjustment mechanism 20. 25 opening adjustments can be made. Therefore, it can be avoided that the motor M simultaneously performs the opening of the gas supply path 35 and the opening degree adjustment. Thereby, the driving load of the motor M can be reduced.

  When the first spindle 45 is moved forward to open the gas supply path 35 of the opening / closing mechanism 21, the motor M adjusts the opening of the gas supply path 25 of the first heating power adjustment mechanism 20. There is no need to bear a force for moving the second spindle 29 forward. Along with this, the driving load of the motor M can be reduced.

  Further, in a state where the flat surface 85 (see FIG. 27) of the first moving member 66 rides on the riding surface 73 (see FIG. 27) of the first gear cam member 64, the motor M operates as the first moving member. 66, while the force for moving the first spindle 45 forward is not required, the second moving member 67 has its fourth inclined surface 88 in contact with the second inclined surface 77 of the second gear cam member 65. Accordingly, it is possible to exert a force to move the second spindle 29 forward by the insertion member 89 of the second moving member 67 while moving forward.

  In the built-in stove 1 according to the present embodiment, the second body member 103 has a through hole 139 (see FIG. 11) corresponding to the inlet of the first gas supply path 156 and a through hole 140 corresponding to the inlet of the second gas supply path 157. (Refer to FIG. 11), the first electromagnetic valve 141 (see FIG. 9) that opens and closes the first gas supply path 156 and the second electromagnetic valve 142 that opens and closes the second gas supply path 157. (See FIG. 9). Thereby, since the 1st and 2nd gas supply paths 156 and 157 and the 1st and 2nd electromagnetic valves 141 and 142 can be gathered, size reduction of the 2nd thermal-power adjustment mechanism 101 provided with these becomes possible.

In addition, after the first and second supply gases whose pressures have been stabilized by the gas governor 108 are passed through the main gas flow path 105 of the first body member 102, the outlets 138 of the communication passage 135 of the second body member 103 are used. It becomes possible to lead to the first gas supply path 156 and the second gas supply path 157.
Further, since the first supply gas that has flowed through the first branch flow path 113 can also flow through the first gas supply path 156 by the first bypass flow path 158 that bypasses the first electromagnetic valve 141, the first electromagnetic valve The amount of gas flowing through the first gas supply path 156 can be changed between when the valve 141 is opened and when the valve 141 is closed. As a result, the amount of gas supplied to the upper burner also changes, so that the heating power of the upper burner can be adjusted.
In addition, since the second supply gas that has circulated through the second branch flow path 114 can be circulated to the second gas supply path 157 by the second bypass flow path 159 that bypasses the second electromagnetic valve 142, the second electromagnetic The amount of gas flowing through the second gas supply path 157 can be changed between when the valve 142 is opened and when the valve 142 is closed. Thereby, since the gas amount supplied to the lower burner also changes, the heating power of the lower burner can be adjusted.

  Even if the first gas supply path 156 is opened by the first solenoid valve 141 (see FIG. 15) upstream of the third solenoid valve 143 (see FIG. 15), the first solenoid valve 143 provides the first By closing the gas supply path 156, the flow of the first supply gas to the upper burner of the grill portion 8 can be prevented. Thereby, the second heating power adjustment mechanism 101 can perform an operation of extinguishing only the upper burner and igniting the lower burner.

  Furthermore, the first gas supply path 156 can be three-dimensionally formed in the second body member 103 along the first to sixth flow paths R1 to R6. In addition, the second gas supply path 157 can be three-dimensionally formed in the second body member 103 along the seventh and eighth flow paths R7 and R8. Therefore, it is possible to reduce the size of the second body member 103 compared to the case where the first gas supply path 156 and the second gas supply path 157 are formed in the second body member 103 in a planar manner.

  In addition, a through-hole 139 (see FIG. 11) corresponding to the inlet of the first gas supply path 156 and a through-hole 140 (refer to FIG. 11) corresponding to the inlet of the second gas supply path 157 are connected to the communication path 135. Since the second body member 103 can be arranged in the left-right direction across the outlet 138, the size of the second body member 103 provided with both through holes 139, 140 can be suppressed.

  Further, as shown in FIG. 10, since the second flow path R2 and the sixth flow path R6 can be arranged in the vertical direction of the second body member 103, the second body member provided with both flow paths R2, R6. The vertical dimension of 103 can be suppressed.

  Further, the first supply gas that has circulated through the first branch flow path 113 passes through the first gas outlet 150 through the second to sixth flow paths R2 to R6 excluding the first flow path R1 in which the first electromagnetic valve 141 is disposed. (See FIG. 9). Therefore, the first supply gas can be guided to the first gas outlet 150 by bypassing the first electromagnetic valve 141. Further, the second supply gas that has circulated through the second branch flow path 114 is supplied to the second gas outlet 151 (see FIG. 19) through the eighth flow path R8 excluding the seventh flow path R7 in which the second electromagnetic valve 142 is disposed. ). Therefore, the second supply gas can be guided to the second gas outlet 151 by bypassing the second electromagnetic valve 142.

  The present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. In the embodiment described above, the first spindle 45 is moved forward together with the first moving member 66 by press-fitting the first spindle 45 into the first moving member 66. However, the present invention is not limited to this. For example, an insertion member 89 may be provided on the first moving member 66 in the same manner as the second moving member 67, and the first spindle 45 may be pushed forward by the insertion member 89.

  Further, unlike the above-described embodiment, the rear end (left side in FIG. 2) of the pushing member 50 (see FIG. 2) is inserted into the through hole 53 of the rotating body 49, and the latch is provided around the rear end. A configuration in which the claw portion is normally locked to the rotating body 49 around the through-hole 53 and the absorbing spring 55 is provided between the rotating body 49 and the pushing member 50 may be adopted. In this case, a metal plate-like member that is locked to the outer cylinder 47 and is movable in the front-rear direction within the outer cylinder 47 is disposed between the rotating body 49 and the locking claw portion. May be. When the magnet electromagnetic valve 37 is in an unlocked state without arranging the plate-like member, the rotating body 49 moves backward to the locking claw portion side while rotating, so that the rotational force of the rotating body 49 is locked. Will act on the part. In such a case, it is conceivable that the locking claw portion is scraped by the rotational force. On the other hand, by using the plate-like member, even when the rotating body 49 retreats to the locking claw portion side while rotating, the rotating body 49 of the magnet 49 is rotated. The rotational force does not act on the locking claw portion. Therefore, it is possible to prevent the locking claw portion from being scraped by the rotational force.

  Further, unlike the above-described embodiment, only the first electromagnetic valve 141 is arranged in the first gas supply path 156 (first to sixth flow paths R1 to R6) without arranging the third electromagnetic valve 143. Thus, the first gas supply path 156 may be opened and closed by the first electromagnetic valve 141. In addition, unlike the above-described embodiment, as shown in FIGS. 14 and 29, the first supply gas that has flowed through the first gas supply path 156 into the fourth recess 132 (see FIG. 14) is converted into the first electromagnetic wave. Through the valve 141, a flow path R1 (the folded flow path of the present invention, see FIG. 14) that guides the communication path 135 in the folded direction (the direction from the front side to the rear side of the housing 121), and the second body member 103 ( 29)), a guide flow path R9 (see FIG. 29) for guiding the first supply gas upward from the end of the flow path R1 toward the first gas outlet 150 may be provided. . By doing in this way, the 1st gas supply path 156 can be three-dimensionally formed in the 2nd body member 103 along two flow path R1, R9. Therefore, it is possible to reduce the size of the second body member 103 as compared with the case where the first gas supply path 156 is formed in a plane on the second body member 103. In addition, the present invention may be applied not only to a built-in stove but also to a table stove.

  1 ・ ・ Built-in stove, 2 ・ ・ Stove body, 5 ・ ・ Left stove, 6 ・ ・ Right stove, 7 ・ ・ Back stove, 8 ・ ・ Grill part, 20 ・ ・ First heating power adjustment mechanism, 21 ・ ・ Opening and closing mechanism 22 .. Spindle drive mechanism 29.. Second spindle 30.. Needle valve 35.. Gas supply path of opening and closing mechanism 45 45. First spindle 58 58 Opening valve 63. 64, first gear cam member, 65, second gear cam member, 66, first moving member, 67, second moving member, 71, first inclined surface, 73, ride on Surface, 74 .. projection, 77 .. second inclined surface, 95 .. position sensor, 97 .. rotation axis of motor, 101 .. second thermal power adjustment mechanism, 102 .. first body member, 103 .. Second body member, 105, main gas flow path, 108, gas governor, 11 .. Inlet of main gas flow path, 113... First branch flow path, 114... Second branch flow path, 132... Fourth recess, 135. · Inlet of the cylinder portion, 138 ·· Outlet of the communication passage, 139,140 ·· Through hole, 141 ·· First solenoid valve, 142 ·· Second solenoid valve, 143 ·· Third solenoid valve, 150 · First gas outlet 151, Second gas outlet 156 First gas supply path 157 Second gas supply path 158 First bypass flow path 159 Second bypass flow Road, M ... motor, R1 ... first flow path, R2, ... second flow path, R3 ... third flow path, R4 ... fourth flow path, R5 ... fifth flow path, R6 ... Sixth flow path, R7... Seventh flow path, R8... Eighth flow path, R9.

Claims (5)

A burner for heating an object to be heated is provided, and a heating power adjustment mechanism for adjusting the amount of combustion of the burner by controlling the amount of gas supplied to the burner, and a gas supply path to the heating power adjustment mechanism are opened and closed. A heating cooker provided with an opening and closing mechanism,
The open / close mechanism includes an open / close valve capable of opening and closing a gas supply path to the thermal power adjustment mechanism by an axial advance / retreat movement of the first spindle.
The thermal adjustment mechanism by forward and backward movement in the axial direction of the shaft-shaped second spindle, an adjustable opening control valve opening degree of the supply passage of gas to the burner,
A cooking device comprising an advancing / retracting mechanism that is driven by a single motor to move the first spindle and the second spindle back and forth. The advance / retreat mechanism is:
A first gear cam member connected to a rotation shaft of the motor and formed with a first inclined surface inclined toward the first spindle;
As the first gear cam member rotates in conjunction with the rotation shaft, the first spindle moves by moving in the approaching direction with the first spindle while abutting the first inclined surface. A first moving member for moving forwardly,
A second gear cam member that meshes with the first gear cam member to transmit the rotational force of the motor and has a second inclined surface that is inclined toward the second spindle;
As the second gear cam member to which the rotational force is transmitted is rotated, the second spindle moves forward in the approaching direction with the second spindle while abutting the second inclined surface. A second moving member to be moved;
The cooking device according to claim 1, further comprising:   The cooking device according to claim 2, further comprising a position sensor for detecting a rotation angle of the rotation shaft. The cooking device according to claim 3 , wherein the first gear cam member is provided with a protrusion for detecting the origin by pressing a micro switch.   A housing member in which the first and second gear cam members and the first and second moving members are housed; the motor is fixed to the housing member; The cooking device according to claim 4, wherein the position sensor and the micro switch are arranged.

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