JP4976799B2 - Rotary operation gas appliance stopper - Google Patents

Description

The present invention relates to an operation shaft for adjusting a gas amount that can be freely rotated within a rotation operation range for adjusting the gas amount including a closing position for closing a gas supply and an operation position for ignition, and an axis of a shaft-like valve operating body. A safety valve that is opened by sliding in a direction, and a relay rotary body that includes a push operation unit and a rotated operation unit that push and slide the valve operation body as the rotation occurs. A push operating body that pushes and operates the rotated operation portion of the relay rotating body with the rotation of the shaft from the closed position to the ignition operation position is rotatable integrally with the operation shaft and of the operation shaft. It is provided to be freely switchable between a push operation state in which the rotation operation unit is pushed with rotation and a push operation release state in which the rotation operation unit is not pushed regardless of the rotation of the operation shaft . Operate the operating shaft from the top side. Regarding the rotation-operated gas appliance plug equipped in stove.

  This type of rotary operation type gas appliance stopper rotates integrally with the operation shaft when the operation shaft for adjusting the gas amount for adjusting the gas supply amount supplied to the gas burner is rotated to the operation position for ignition. Via a relay rotating body that is pushed by a freely provided push operating body, the valve operating body is pushed to open a closed energized safety valve to supply a gas amount for ignition to the gas burner. In this state, the gas burner can be switched to a state in which the ignition operation can be performed. When the gas burner is ignited and switched to the combustion state, the safety valve is held open by the electromotive force of the thermocouple heated by the flame of the gas burner even if the push operation by the relay rotating body is released. When the gas burner is extinguished, the valve is automatically switched to the closed state. Therefore, it is necessary for the push operating body to push the valve operating body when the ignition operation is performed, but when the ignition operation is finished and the gas burner is in the combustion state, the valve operating body is closed. Since it is necessary to switch to a state where the push operation is not performed regardless of the rotation of the operation shaft so as to be able to be switched, the state is switched between the push action state and the push operation release state.

  In such a rotary operation type gas appliance plug, conventionally, the relay rotary body is provided so as to rotate around an axis parallel to the rotation axis of the operation shaft, and There is a configuration in which the shaft core is provided so as to be orthogonal to the shaft core of the relay rotating body (see Patent Document 1).

Japanese Patent No. 3678954

  In the conventional configuration, the relay rotating body is provided so as to rotate around an axis parallel to the rotation axis of the operation shaft, and the axis of the valve operating body serves as an axis of the relay rotating body. Since they are provided so as to be orthogonal to each other, the rotation axis of the operation shaft and the axis of the valve operating body are arranged in an orthogonal state. As a result, when applying such a gas appliance plug to a gas stove, there is a disadvantage that the installation method is restricted.

  In other words, the operation shaft is configured to rotate from the upper side of the top plate, and the operation shaft is installed in a state where the rotation axis is along the vertical direction as described above. If a gas appliance plug having a conventional configuration is applied, it can be arranged so that the axial center direction of the valve operating body is in the horizontal direction. In order to facilitate the rotation of the operation shaft, the operation shaft is rotated from the upper side of the top plate, and the rotation axis of the operation shaft is tilted forward of the device with respect to the vertical direction. When the gas appliance plug having the above-mentioned conventional configuration is applied to the gas stove configured in the posture, the valve operating body is arranged so that the axis of the valve operating body is orthogonal to the rotational axis of the operating shaft installed in an oblique direction. Safety valves must be installed. Results in orientation axis of the valve operating member is tilted from the horizontal direction in an oblique direction, there is a disadvantage that restricted the way of installation. That is, there is a disadvantage that the axis of the valve operating body is inclined obliquely, and the vertical size of the gas stove must be increased more than necessary in order to avoid interference with other objects such as a top plate. There is.

  Therefore, as a configuration for eliminating such disadvantages, the axial center of the valve operating body is not orthogonal to the axial center of the relay rotating body, but they are inclined at an angle different from 90 degrees. It is conceivable that the push operation is performed so as to intersect with the valve, but with this configuration, the push operation force is inclined with respect to the sliding direction of the valve operation body by the relay operation body, so that There is a risk that a good operation cannot be performed such as the

  An object of the present invention is to provide a rotary operation type that can reduce the possibility of being restricted in the way of installation when applied to a gas stove, while the push operation body can perform the push operation of the valve operation body satisfactorily. The point is to provide a gas appliance stopper.

A rotary operation type gas appliance plug according to the present invention includes an operation shaft for adjusting a gas amount that is freely rotatable within a rotation operation range for adjusting a gas amount including a closing position for closing a gas supply and an operation position for ignition. A relay comprising a safety valve that is opened by sliding in the axial direction of a shaft-like valve operating body, a push operating section that pushes and slides the valve operating body with rotation, and a rotated operating section A rotating body is provided, and a push operating body that pushes and operates a rotated operation portion of the relay rotating body as the operating shaft rotates from the closed position to the ignition operating position, rotates integrally with the operating shaft. Switching between a push-action state in which the rotation operation unit is pushed and operated in accordance with the rotation of the operation shaft and a push operation release state in which the rotation operation unit is not pushed regardless of the rotation of the operation shaft. operably provided, from the top side of the top plate A rotary operation type of the gas appliance plug equipped in gas stove in the form of operating the serial operation shaft, a first aspect of this disclosure,
The relay rotating body is provided to rotate around a rotation axis perpendicular to the rotation axis of the operation shaft;
The valve operating body is provided so as to slide along a virtual plane orthogonal to the rotation axis of the relay rotating body ;
The operation shaft is configured with the one end side in the rotation axis direction as an operation portion,
The valve operating body is positioned so as to extend from a portion corresponding to the other end side opposite to the operating portion in the rotational axis direction of the operating shaft in the rotational axis direction of the relay rotating body. ,
The operating shaft and the valve operating body are disposed in a state of being in a positional relationship of being bent in a substantially U shape when viewed in the rotational axis direction of the relay rotating body,
The rotary axis of the operation shaft is equipped on the gas stove in an oblique posture inclined to the front side of the device with respect to the vertical direction,
An instrument plug body that houses a valve body for adjusting the amount of gas that is rotated by the operation shaft, and that rotatably supports the operation shaft and the relay rotation body, the safety valve, and the valve The safety valve storage body that stores the operation body therein is formed separately, and the instrument plug body and the safety valve storage body are integrally assembled .

  According to the first characteristic configuration, when the operation shaft is rotated from the closing position to the ignition operation position in a state where the push operation body is switched to the push operation state, the operation shaft rotates integrally with the operation shaft. The rotating operation part of the relay rotator is pushed by the push operation body, the relay rotator rotates around the rotation axis perpendicular to the rotation axis of the operation shaft, and the push operation part of the relay rotator operates on the valve. The safety valve can be opened by pushing and sliding the body. Further, the gas amount can be changed and adjusted in a state where the rotation operation portion is not operated by rotating the operation shaft while the push operation body is switched to the push operation release state. .

  As described above, since the relay rotating body is provided so as to rotate around the rotation axis orthogonal to the rotation axis of the operation shaft, the rotation axis of the operation shaft, that is, the rotation axis of the push operation body, and the relay The rotation axis of the rotated operation part of the rotating body is perpendicular to the rotation operation force of the push operating body, and the rotating operation part of the relay rotating body can be efficiently applied to the rotated operation part of the relay rotating body. Since the valve operating body pushed by the push operating section slides along a virtual plane orthogonal to the rotation axis of the relay rotating body, the valve operating body efficiently uses the push operating force by the push operating section. It is possible to act on.

  In addition, even if the relative posture between the operation shaft and the valve operation body when the relay rotation body is viewed in the direction of the rotation axis is changed, the push operation force by the push operation unit is efficiently applied to the valve operation body. It is possible to maintain the state to be made. That is, since the push operation by the push operation unit is a rotation operation around the rotation axis of the relay rotator, the push operation unit can be operated regardless of the rotation phase of the push operation unit on the virtual plane. It is possible to set the push operation state with respect to the valve operating body by the same state.

As a result, by changing the relative attitude between the operation shaft and the valve operation body when the relay rotating body is viewed in the direction of the rotation axis, there is less risk of being restricted by the installation method when applied to the gas stove.
For example, even Gascon b configured oblique posture tilted to the device front side operating shaft from the upper side structure and is and the rotational axis of the operating shaft such that rotational operation with respect to the vertical direction of the top plate Applying to various types of gas stoves with less risk of being restricted by the installation method, such as enabling the valve operating body to be installed horizontally while installing the operating shaft at a predetermined position Is possible.

  Therefore, according to the first characteristic configuration, it is possible to satisfactorily perform the pushing operation of the valve operating body by the pushing operation body, but it is possible to reduce the possibility of being restricted by the installation method when applied to the gas stove. A rotating operation type gas appliance stopper has been provided.

Further , according to the first characteristic configuration, the operation shaft and the valve operation body are disposed in a state where the relay operation body is bent in a substantially U shape when viewed in the direction of the rotation axis of the relay rotation body. Thus, one end side of the operation shaft in the direction of the rotation axis, that is, the side away from the valve operation body when viewed in the direction of the rotation axis of the relay rotation body is configured as the operation unit.

  In other words, when the gas appliance plug having such a configuration is applied to the gas stove, the operation shaft and the valve operation body are in a positional relationship in which the operation shaft and the valve operation body are bent in a substantially U shape when viewed from the direction of the rotation axis of the relay rotation body. For example, when applied to a gas stove configured to operate the operation shaft from the upper side of the top plate, the rotation axis of the operation shaft is set in an oblique direction inclined to the front side of the device with respect to the vertical direction and operated. It is possible to install the valve operating body so that the axial center of the valve operating body is along the horizontal direction. As a result, the valve operating body and the safety valve can be arranged along the horizontal direction inside the device, and the vertical size of the gas stove can be made compact.

Therefore, according to the first characteristic configuration, in the case of application to a gas stove having a configuration in which the rotation axis of the operation shaft is inclined toward the front side of the device with respect to the vertical direction, there is a restriction on the arrangement configuration of the operation shaft and the safety valve. It has been possible to provide a rotary operation type gas appliance stopper that can be suitably used with less risk of being received.
Further, according to the first characteristic configuration, the instrument plug main body is provided in a state of rotatably supporting the operation shaft and the relay rotator, so that the relative positional relationship between the operation shaft and the relay rotator is maintained constant. In addition, since the instrument plug body and the safety valve storage body are formed separately from each other, and the instrument plug body and the safety valve storage body are integrally assembled, the operation shaft Even when the rotating shaft core of the valve and the shaft core of the valve operating body are applied to a gas stove of a type having various different angles, the structure of the mounting portion between the instrument plug body and the safety valve housing body For example, it is possible to use various types of gas stoves with different specifications by using a different specification as the safety valve storage body while sharing the instrument plug body, or, while using the safety valve storage body in common Possible to use a different specification as the plug body so as to correspond to the gas stove of a variety of different specifications, it is possible to reduce the cost by alternate of members.
Therefore, according to the first characteristic configuration, when applied to a gas stove, the risk of being restricted by the arrangement of the safety valve is reduced regardless of the arrangement configuration of the operation shaft, but the cost can be reduced by sharing the member. It became possible to provide a rotary operation type gas appliance stopper.

In addition to the first feature configuration or the second feature configuration, the second feature configuration of the present invention is configured such that the push operation body changes the position of the operation shaft in the direction of the rotation axis and the push action state. It is provided in a state where it can be switched to a push operation release state and is urged to return to the push operation release state, and the push operation body is brought into the push action state as the operation shaft is operated to the closed position. A cam-type switching mechanism for switching, and the push operating body to maintain the pushing action state against a return biasing force when the operation shaft is rotated from the closed position to the ignition operation position side. And when the rotational operation on the operation shaft stops at a rotational operation position other than the closing position, the push operation body is allowed to switch to the push operation release state by a return biasing force. It lies in that the locking-type retaining mechanism for releasing the locking is provided.

According to the second characteristic configuration, the push operating body is switched to the push acting state by the cam type switching mechanism as the operating shaft is operated to the closed position. Then, while the operator operates the operation shaft to rotate from the closed position to the ignition operation position, the push operating body is maintained in the pushing action state by the locking type holding mechanism, so that the operation shaft is rotated. Accordingly, the safety valve can be opened by sliding the valve operating body through the relay rotating body. When the operator stops the rotation operation with respect to the operation shaft, the pushing operation body is allowed to switch to the push operation released state by the return biasing force by the locking type holding mechanism. Even in this case, the rotation operation portion is not pushed by the push operating body, and only the gas amount can be adjusted.

Therefore, according to the second feature configuration, there is provided a rotary operation type gas appliance plug capable of performing the valve opening operation of the safety valve and the gas amount adjustment operation with a simple operation by simply rotating the operation shaft. I was able to do it.

In addition to the first feature configuration or the second feature configuration , the third feature configuration of the present invention is configured such that the operation shaft is movable between a rotation restriction position and a rotation operation position along the rotation axis direction. Rotation operation around the rotation axis of the operation shaft when the operation shaft is located at the rotation restriction position and at the closed position provided in a state of being biased back to the rotation restriction position When the operation shaft is positioned at the position for rotation operation, a rotation operation check mechanism is provided that allows the rotation operation of the operation shaft around the rotation axis around the entire rotation operation range. There is in point.

According to the third characteristic configuration, when the gas amount adjustment operation is performed, if the operation shaft is positioned at the rotation operation position against the return biasing force, the operation shaft is allowed to rotate around the rotation axis. Therefore, it can be performed by a movement operation of the operation shaft in the rotation axis direction and a subsequent rotation operation. When performing the gas amount adjustment operation in this way, it is necessary to position the operation shaft at the rotation operation position against the return biasing force, and the operation shaft is positioned at the rotation restriction position and the closing position. Since the rotation operation around the rotation axis of the operation shaft is restrained when the operation shaft is in the closed position, the operation shaft rotates due to an erroneous operation when in the closed position, and gas supply is not inadvertently performed. Safety can be secured.

Therefore, according to the third feature configuration, it is possible to provide a rotary operation type gas appliance plug that can ensure the safety in use while being able to easily adjust the gas amount by the rotation operation. It came.

A fourth feature configuration of the present invention is that, in addition to any of the first feature configuration to the third feature configuration, the ignition operation position is set to an intermediate position in the rotation operation range.

According to the fourth characteristic configuration, since the ignition operation position is set to an intermediate position in the rotation operation range, the ignition operation position is increased while increasing the rotation operation range to increase the gas amount adjustment range. When operated to the position, a gas amount suitable for the ignition operation can be supplied.

Therefore, according to the fourth characteristic configuration, it is possible to provide a rotary operation type gas appliance plug that can supply a gas amount suitable for an ignition operation while being able to increase a gas amount adjustment range. It came to.

Hereinafter, a case where an embodiment of a rotary operation type gas appliance stopper according to the present invention is applied to a gas stove will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the gas stove is configured as a built-in type including three stove burners 1 and a grill portion 3, and the three stove burners 1 include a standard burner 1 a, a small burner 1 b, and a high thermal power. A grill burner 2 is provided inside the grill portion 3. As shown in FIG. 1, a grill exhaust port 4 for exhausting combustion exhaust gas from the grill portion 3 is formed, and the top surface of the gas stove is covered with a top plate 5. Five victories 6 are provided for placing and supporting a heating container (a pan or the like) corresponding to each of the burner 1a, the small burner 1b, and the high thermal power burner 1c.

  Further, on the front side of the gas stove, there is provided a manual operation unit S for instructing various settings of each of the stove burner 1 and the grill burner 2, and although not described in detail, a combustion control unit configured to execute various controls. (Not shown) is configured to control the operation state of each of the burners 1 and 2 based on the operation state commanded by the manual operation unit S.

  In addition, three gas appliance plugs 7 for performing an ignition operation and a gas amount adjustment operation on the stove burner 1 are provided in a state where they are arranged at the right side of the top plate 5 on the front side of the device. As shown in FIG. 2, the right side portion on the front side of the device on the top plate 5 provided with the gas appliance plug 7 is provided in an inclined posture so as to be positioned lower toward the front side of the device. As will be described in detail later, the gas appliance plug 7 is configured to have an oblique posture in which the operation rotation axis is inclined to the front side of the device with respect to the vertical direction so that the gas amount adjustment operation can be easily performed. . A gas appliance plug 8 for performing an ignition operation and a gas amount adjustment operation on the grill burner 2 is provided on the left side of the operation panel portion on the front side of the apparatus.

The three gas appliance plugs 7 corresponding to the three stove burners 1 have the same basic configuration although the configurations are slightly different, such as different rotation operation ranges as will be described later, and the operation knob 19 is rotated. Thus, the supply amount of the fuel gas supplied to the stove burner 1, that is, the gas amount can be changed and adjusted. And the three gas appliance plugs 7 corresponding to each of the three stove burners 1 correspond to the gas appliance plug of the present invention.
Hereinafter, the gas appliance plug corresponding to the high thermal power burner 1c will be described as a representative.

  As shown in FIGS. 6 and 10, the gas appliance plug 7 has a rotating operation for gas amount adjustment including a closed position (A) for closing the gas supply and a second operating position (C) as an operating position for ignition. A gas amount adjusting operation shaft 9 that can be freely rotated within a range, a safety valve 11 that is opened by sliding in the axial direction of a shaft-shaped valve operation body 10, and a valve operation body 10 that is rotated. There is provided a push operating portion 12 that is pushed and slid and a relay rotating body 14 provided with a rotated operation portion 13, and the operation shaft 9 is rotated from the closed position (A) to the second operation position (C). Accordingly, the push operating body 15 that pushes and operates the rotated operation portion 13 of the relay rotating body 14 can rotate integrally with the operation shaft 9 and push the operated operation portion 13 as the operation shaft 9 rotates. Operation of the rotated operation portion 13 regardless of the pushing action state and the rotation of the operation shaft 9 Are freely provided operation switched without the press operation releasing state. The relay rotating body 14 is provided so as to rotate around a rotation axis Y that is orthogonal to the rotation axis X of the operation shaft 9, and the valve operating body 10 is orthogonal to the rotation axis Y of the relay rotation body 14. It is provided so as to slide along a virtual plane.

  As shown in FIG. 8, the gas appliance plug 7 accommodates therein a valve body 16 for adjusting the amount of gas that is rotated by an operation shaft 9, and rotatably supports the operation shaft 9 and the relay rotating body 14. As shown in FIG. 7, the instrument plug main body 17 and the safety valve storage body 18 that stores the safety valve 11 and the valve operating body 10 are provided. The instrument plug main body 17 and the safety valve storage body 18 are provided. Are formed as separate bodies, and they are assembled integrally. That is, as shown in FIG. 9, three bolts are obtained by connecting a mounted portion 18 a as a mounted portion formed in the safety valve housing 18 to a mounting seat 17 a as a mounting portion formed in the instrument plug body 17. It is configured to be integrally assembled by tightening and fixing with Bo.

Further, as shown in FIGS. 7 and 8, gas flow paths 20 and 21 are formed in the instrument plug body 17 and the safety valve storage body 18 respectively, and these gas flow paths are formed by assembling them integrally. 20 and 21 are connected to each other, and the fuel gas supplied from the gas inlet 22 formed in the safety valve housing 18 is formed in the instrument plug body 17 through the gas passages 20 and 21 (see FIG. 5 and FIG. 5). The gas flow path is configured to flow out from (see FIG. 9).
As shown in FIG. 2, the fuel gas from the household gas pipe is supplied to the gas inlet 22 through the gas receiving pipe 25, and the fuel gas after the gas amount adjustment is supplied from the gas outlet 24 through the supply path 26. It is configured to be supplied to the target high thermal power burner 1c.

  As shown in FIGS. 3, 4, and 7, the operation shaft 9 is configured with the one end side in the rotation axis direction as an operation portion 9 a, and the valve operation body 10 is viewed in the rotation axis direction of the relay rotation body 14. The operation shaft 9 and the valve operation body 10 are positioned so as to extend from a portion corresponding to the other end side opposite to the operation portion 9 a in the rotation axis direction of the operation shaft 9. When viewed in the direction of the core Y, they are disposed in a state of being in a positional relationship of being bent in a substantially U shape. 3, 4, and 7 are drawings of the relay rotating body 14 as viewed in the direction of the rotation axis Y.

As shown in FIGS. 3 and 4, the angle formed by the rotation axis X of the operation shaft 9 and the virtual extension line obtained by extending the axis Z of the valve operating body 10 to the front side of the device is set to about 70 degrees. As shown in FIG.
It arrange | positions so that the axial center Z of the valve operation body 10 may go to the horizontal direction along an apparatus front-back direction. That is, the operation shaft 9 is provided so that the rotation axis is inclined at an angle of about 20 degrees with respect to the vertical direction of the vertical direction of the gas stove with respect to the vertical direction. In the case of dynamic operation, it is easy to operate.

  As shown in FIG. 6, the operation shaft 9 is moved from the closed position (A) to the first operation position (B), the second operation position (C), and the third operation position (D) (maximum operation position). The gas amount can be changed and adjusted to a gas amount suitable for the ignition operation when rotating from the closing position (A) to the second operation position (C). Yes. That is, in the gas appliance plug 7 corresponding to the high thermal power burner 1c, the second operation position (c) corresponds to the ignition operation position. Thus, the ignition operation position is set to an intermediate position in the rotation operation range.

  As shown in FIGS. 10 to 12, the push operation body 15 can be switched between the push operation state and the push operation release state by changing the position of the operation shaft 9 in the direction of the rotation axis X. And a cam-type switching mechanism K1 that is provided in a state in which it is urged to return to the push operation release state, and switches the push operating body 15 to the push acting state as the operation shaft 9 is operated to the closed position (A). When the operating shaft 9 is rotated from the closed position (A) to the second operating position, the operating shaft 9 is engaged with the push operating body 15 so as to be maintained in the push acting state against the return biasing force, and When the rotation operation with respect to the operation shaft 9 is stopped at the rotation operation position other than the closing position, the locking operation is performed so as to release the locking so as to allow the push operating body 15 to switch to the push operation releasing state by the return biasing force. And a holding mechanism K2. There.

When the description is added, as shown in FIG. 10, the push operating body 15 is formed in a substantially cylindrical shape, and an inner cylinder portion 45 in which the lower end side portion of the operation shaft 9 fits is formed in the axial direction inside. The pushing action portion 53 is integrally formed on the outer peripheral portion so as to protrude radially outward in a part of the circumferential direction. A concave groove 43 is formed in the lower end portion of the operation shaft 9 along the diametrical direction, and the locking pin 44 is fitted in the concave groove 43 in a lateral orientation.
On the other hand, the locking pin 44 is fitted in the axial direction of the operation shaft 9 so as to be recessed in the axial direction at two locations separated in the diameter direction in the inner cylinder portion 45 of the push operating body 15. A pair of concave grooves 46 are formed. In addition, a pair of locking claws 47 are integrally formed at the lower part of the push operating body 15, and the shaft of the operation shaft 9 is arranged so that the locking claws 47 sandwich a protrusion 48 formed at the upper part of the valve body 16. The valve body 16 is configured to rotate in accordance with the rotation of the push operating body 15 by being fitted and engaged in the core direction. In this way, the locking pin 44 engages with the concave groove 43 formed in the operation shaft 9 and also engages with the concave groove 46 formed in the push operation body 15, so that the operation shaft 9. When the is rotated, the push operating body 15 is integrally rotated via the locking pin 44.

  As shown in FIG. 10, a coil spring 50 is provided to move and urge the push operating body 15 away from the valve body 16, and the push operating body 15 moves away from the valve body 16, that is, upward toward the lower support plate 28. It is configured to be moved and energized. In addition, inclined cam surfaces 51 are formed on the upper side portion of the push operating body 15 in a state of being located on both sides in the diameter direction with the concave groove 46 interposed therebetween and at a predetermined phase in the circumferential direction. Engagement protrusions 52 that protrude downward to act on the cam surfaces 51 are formed at positions where the cam surfaces 51 of the side support plate 28 face each other.

  The cam surface 51 is engaged regardless of the position of the push operating body 15 in the rotational axis direction while the push operating body 15 is operated from the first operation position (B) to the third operation position (D). The mating protrusion 52 is formed on the non-operating surface located on the lower side so as not to engage, and the push operating body 15 is rotated from the first operation position (B) to the closing position (A). While the engaging projection 52 is engaged and the push operating body 15 is sequentially pushed downward, it is formed on an inclined plan surface that is sequentially located upward in the circumferential direction, and is in the vicinity of the closing position (A). Has a shape including an upper flat surface that maintains a state in which the push operation body 15 is pushed down. Accordingly, the cam type switching mechanism K1 is configured by the cam surface 51 and the engagement protrusion 52.

  As described above, while the push operation body 15 is operated from the first operation position (B) to the third operation position (D), the push operation body 15 is engaged at any position in the rotational axis direction. Since the protrusion 52 does not engage, the pushing operation body 15 can move toward the lower support plate 28 by the biasing force of the coil spring 50. 15 and 16 show a state in which the engagement between the engagement protrusion 52 and the cam surface 51 is released, and the push operating body 15 moves toward the lower support plate 28 side.

  In a state in which the engaging projection 52 engages with the cam surface 51 and the push operating body 15 moves downward, the push acting portion 53 of the relay rotating body 14 moves along with the rotation operation of the operation shaft 9. In the state in which the rotating operation unit 13 abuts (see FIG. 13) but the push operating body 15 is moving toward the lower support plate 28, the push operating unit 53 acts on the rotated operation unit 13. The contact state is not achieved (see FIG. 15). Therefore, the state in which the push operation body 15 is moving toward the lower support plate 28 corresponds to the push operation release state, and the engagement protrusion 52 engages with the cam surface 51 to perform the push operation. A state in which the body 15 is moving along the axial direction of the operation shaft 9 relatively downward corresponds to the pushing action state.

  As shown in FIGS. 11, 12, and 15, the rotation operation toward the first operation position (B) side from the closing position (A) in the concave groove 46 formed in the inner cylinder portion 45 of the push operation body 15. On the inner surface on the lower side in the direction, a locking pin 44 to which a rotational operating force is applied when the operating shaft 9 is rotated from the closed position (A) to the second operating position (C) is locked, and the coil spring 50 A locking slope portion 49 for restricting the movement of the operating shaft 9 in the axial direction of the operating shaft 9 against the urging force is formed. The locking pin 44, the locking slope portion 49 and the like constitute a locking type holding mechanism K2.

  When the description is added, the locking pin 44 is locked by the operation force in the rotation operation direction while the operation force in the rotation operation direction is applied to the locking pin 44. Thus, the movement of the push operating body 15 in the axial direction of the operation shaft 9 can be restricted against the biasing force of the coil spring 50, and the operation force in the rotational operation direction is applied to the locking pin 44. When released, the push operating body 15 is allowed to move upward by the urging force of the coil spring 50.

  As shown in FIGS. 3, 7, 9, 10, 13, and 14, the relay rotation is performed on the extended support portion 28 </ b> A that integrally extends from the lower support plate 28 in a substantially right angle direction. The body 14 is rotatably supported around an axis Y that is orthogonal to the axis X of the operating shaft 9. The relay rotator 14 includes a rotated operation unit 13 that is rotated by contacting a push operation unit 53 formed on the push operation unit 15, a push operation unit 12 that operates the valve operation unit 10, and The switch operation part 59 which pushes and operates the operation piece 58a of the ignition limit switch 58 which operates the igniter for igniting the combustor 1 and is switched on is integrally formed of a synthetic resin material. It has become. The relay rotating body 14 is supported by the extending support portion 28A so as to be rotatable around the axis Y by a metal pin 60. The rotated operation unit 13 and the push operation unit 12 are integrally formed so that the positions in the rotation axis Y direction are the same or substantially the same.

  As shown in FIG. 7, the safety valve storage body 18 is provided with a safety valve 11 and a valve operating body 10 provided therein. The safety valve 11 is configured such that the valve element 54 is pressed and urged against the valve seat 56 by a coil spring 55 to close the valve element. By energizing the electromagnetic solenoid 57, the valve element 54 is moved to the valve opening side. The valve can be operated to maintain the valve open state. The safety valve 11 is configured such that the valve body 54 is pushed by the valve operating body 10, and the valve operating body 10 is provided in a state where the shaft core is along the moving direction of the valve body 54. In addition, the safety valve housing 18 is configured to be slidably supported in the axial direction. Therefore, the safety valve storage body 18 is configured in a long shape along the sliding direction of the valve operating body 10 due to its structure.

  In addition, a buffer member 61 for preventing an excessive force from being applied to the safety valve 11 due to an unreasonable pushing operation by the pushing operation unit 12 is provided at the distal end portion of the valve operating body 10 pushed by the pushing operation unit 12. Is provided. As shown in FIG. 7, the buffer member 61 is externally fitted to a small-diameter portion 62 on the distal end side of the valve operating body 10 so as to be slidable in the axial direction. It is equipped in a state in which it is elastically biased and is retained by a retaining tool 64 attached to the tip of the small diameter portion 62. The urging force of the coil spring 63 is set to be larger than the urging force of the valve closing coil spring 55 provided in the safety valve 11, and when it is pushed, the valve closing coil spring 55 is first retracted and the safety valve 10 is opened. When the pushing operation force is further applied after the valve is opened, the buffering coil spring 63 is degenerated and the force applied to the safety valve 11 can be avoided.

  As shown in FIG. 16, when the operation shaft 9 is rotated toward the closing position to reach the closing position (A), the pushing action portion 53 provided in the pushing operation body 15 is moved to the outer surface of the instrument plug body 17. Is received by a receiving portion 70 formed on the side, and further rotation to the closed position side is prevented. Similarly, in the operation to the maximum operation position side, the operation shaft 9 is similarly operated. Is operated to the third operating position (d), the pushing action portion 53 is received by the receiving portion 71 formed on the outer surface of the instrument plug body 17, and further rotation to the maximum operating position side is prevented. It has become so.

  As shown in FIGS. 3 to 15, the operation shaft 9 is configured to be rotatably supported by an upper support plate 27 and a lower support plate 28 attached to the instrument plug body 17. The lower support plate 28 is formed on a flat surface and is fixedly attached to the upper end surface of the instrument plug main body 17 so that a space is formed between the upper support plate 27 and the lower support plate 28. The relay rotor 14 is bent and formed in a substantially U shape when viewed in the direction of the rotation axis Y, and is attached and fixed to the instrument plug body 17. Between the upper support plate 27 and the lower support plate 28, a cam member 29 is externally attached to the operation shaft 9 so as to rotate integrally with the operation shaft 9, and in the vicinity thereof, power is supplied to the combustion control unit. Is provided, and when the operating shaft 9 is slightly rotated from the closed position (A) to the maximum operating position, the cam member 29 acts on the power supplying limit switch 30. This is switched to the on state and is kept in the on state over the entire rotation operation range. When the operation shaft 9 is returned to the closed position (A), the contact action is released and the power is supplied. The limit switch 30 for use is switched to the off state.

  As shown in FIGS. 8, 10, 11, and 12, the operation shaft 9 is movable along the rotation axis X direction between the rotation restriction position and the rotation operation position, and the rotation restriction position. When the operation shaft 9 is located at the rotation restricting position and the closed position, the rotation operation of the operation shaft 9 around the rotation axis is restrained. When the operation shaft 9 is located at the position for rotation operation, a rotation operation check mechanism K3 is provided that allows rotation operation around the rotation axis of the operation shaft 9 over the entire rotation operation range.

  The specific configuration of the rotation operation check mechanism K3 will be described. As shown in FIG. 10, a large diameter portion 31 having a substantially oval cross section is formed in the middle of the operation shaft 9 in the longitudinal direction. The operation shaft 9 can be rotated while the portion 31 is positioned between the upper support plate 27 and the lower support plate 28. The shaft insertion portion of the upper support plate 27 is formed with a substantially oval insertion hole 32 in which the large-diameter portion 31 can be fitted only when the operating shaft 9 is in the closed position. A coil spring 33 is provided between the body 16 and the operation shaft 9 so that the operation shaft 9 is moved and urged upward.

  Therefore, when the operating shaft 9 is in the closed position, as shown in FIG. 11, the operating shaft 9 is moved upward by the biasing force of the coil spring 33, and the large-diameter portion 31 is fitted into the substantially oval insertion hole 32. It will fit. At that time, the upper end portion of the large-diameter portion 31 abuts on a restriction plate 39 provided on the upper side of the upper support plate 27 and further upward movement is restricted, and the position in the direction of the rotation axis is restricted. become. The position corresponds to the rotation restricting position. At this rotation restricting position, the rotation operation around the axis of the operation shaft 9 is restrained.

  As shown in FIG. 12, when the operator pushes the operating shaft 9 downward against the urging force of the coil spring 33 to release the engagement between the large diameter portion 31 and the substantially oval insertion hole 32. Thus, the operation shaft 9 is allowed to rotate. At this time, the lower end of the large-diameter portion 31 is received by the lower support plate 28 and further downward movement is restricted, and the position in the direction of the rotation axis is restricted. This position corresponds to the position for rotation operation. In this rotational operation position, the operation shaft 9 can be rotated with the large-diameter portion 31 positioned between the upper support plate 27 and the lower support plate 28.

As shown in FIGS. 3 to 8, a click holding portion 34 is provided on the upper side of the upper support plate 27 to give a click feeling of operation at a plurality of operation positions of the operation shaft 9.
As shown in FIG. 17, the click holding portion 34 includes a sliding plate 35 that rotates integrally with the operation shaft 9, a small-diameter steel ball 36 that is held by the sliding plate 35, and four pieces of steel balls 36. A plate spring type holding plate 38 in which the engagement hole 37 is formed, a regulating plate 39 for regulating the movement of the sliding plate 35 in the radial direction, and the like are provided. The click holding part 34 holds a steel ball 36 by the sliding plate 35, and a plate spring type holding plate 38 is positioned in a fixed state on the upper side of the click ball 34. As the operation shaft 9 is rotated, Small-diameter steel balls 36 are sequentially engaged with the four engagement holes 37 formed in the holding plate 38, and the closing position (A), the first operation position (B), the second operation position (C), and the third The position can be held in a state where a click feeling is given at each operation position of the operation position (d).

  The click holding portion 34 passes through the first operation position (B) from the click holding state at the closing position (A) when rotating to the maximum operation position side from the closing position (A) to perform an ignition operation. Thus, the second operation position (c), that is, the ignition operation position is switched to the click holding state.

  That is, as shown in FIGS. 17 and 18, the regulation plate 39 is formed with a guide hole 41 into which the protrusion 40 formed to protrude from the sliding plate 35 is fitted, and is bent downward with the leaf spring type holding plate 38. When the bent portion 42 is formed in an oblique direction between the closing position and the first operation position, and the steel ball 36 rotates in the radial direction from the closing position (A) toward the first operation position (B) When the moving force acts on the inward side and rotates from the first operation position (B) toward the closing position (A), the steel ball 36 is configured so that the moving force acts on the radially inward side. Yes.

  When the steel ball 36 rotates from the closed position (A) to the first operation position (B), a moving force acts on the radially inward side, so that the sliding plate 35 moves in that direction, and the protrusion 40 Is guided along the guide surface 41b on the radially outer side of the guide hole 41, and the steel ball 36 passes through the radially inner side, so that it passes through the engagement hole 37 corresponding to the first operation position (B). To do. And if it rotates to a 2nd operation position (b) (operation position for ignition), the said protrusion 40 will be guided by the guide hole 41, and the steel ball 36 will move to a radial direction outer side, and will be 2nd operation position (b). It engages with the engagement hole 37 corresponding to. When the steel ball 36 rotates in the opposite direction, a movement force acts on the radially outward side, so that the projection 40 is guided along the guide surface 41a on the radially inward side of the guide hole 41, and the first operation is performed. The steel ball 36 is properly engaged with the engagement hole 37 corresponding to the position (b).

Next, the operation when the gas amount is adjusted by rotating the operation shaft 9 from the closed position in the gas appliance plug 7 having the above-described configuration will be described.
First, when the operation shaft 9 is in the closed position (A), as shown in FIGS. 11A and 11B, the operation shaft 9 is prevented from rotating by the action of the rotation operation check mechanism K3 described above. Thus, the operator pushes the operation shaft 9 downward in the axial direction to switch to a state in which the rotation operation is allowed (see FIGS. 12A and 12B), and then the operation shaft. 9 is rotated from the closed position (A) to the second operation position (C) (ignition operation position).

  When the operation shaft 9 is in the closed position (A), the push operating body 15 is switched to the push action state by the engagement action of the engagement protrusion 52 and the cam surface 51, but the operation shaft 9 is moved from the closed position. When the rotating operation is performed by the set amount, the engaging action between the engaging protrusion 52 and the cam surface 51 is released, and the pushing operation body 15 is moved upward by the urging force of the coil spring 50 to switch to the pushing operation releasing state. I will try. However, when the operation shaft 9 is rotated from the closed position (A), as shown in FIG. 12, the engagement formed on the inner surface on one side in the circumferential direction of the concave groove 46 formed in the push operating body 15. The locking pin 44 to which a force in the rotation direction is applied by the manual operation is locked to the slope portion 49. As a result, the pushing operation body 15 is prevented from moving upward and maintains the pushing action state.

  Then, a state in which a force in the rotation direction is applied to the locking pin 44 by manual operation and the push operation body 15 is retained and held and is prevented from moving upward is continued. When the operation shaft 9 rotates to the second operation position (c) while maintaining the pushing action state, the pushing action portion 53 in the pushing operation body 15 is rotated by the relay rotating body 14 as shown in FIGS. 13 and 14. The relay rotating body 14 is rotated around the rotation axis Y while coming into contact with the portion 13. Then, the push operating portion 12 of the relay rotating body 14 pushes the valve operating body 10, and the valve body 54 urged against the valve seat 56 by the coil spring 55 is forcibly pushed to open the safety valve 11. The fuel gas is supplied to the high thermal power burner 1c. On the other hand, when the relay rotator 14 is rotated around the rotation axis Y, the switch operation unit 59 also rotates integrally. Therefore, the ignition limit switch 58 is turned on and an igniter (not shown) acts to increase the height. The ignition process for the thermal power burner 1c is executed.

  As shown in FIG. 14, when the operating shaft 9 is rotated to the second operating position (c), the pushing action portion 53 is received by a receiving portion 72 formed on the outer surface of the instrument plug body 17, The above rotation is prevented, and the ignition process as described above is executed in a state where the operator holds the operation shaft 9 at the second operation position (c).

  When the ignition process is completed and the operator releases the rotational operation force with respect to the operation shaft 9, the rotational operation force by the locking pin 44 is lost, so that the locking pin 44 and the locking slope portion 49 are locked. After being released, the push operating body 15 is moved upward by the urging force of the coil spring 50 to switch to the push operation released state (see FIG. 15). When the push operation body 15 is switched to the push operation release state in this way, the push operation body 15 in the push operation body 15 is rotated even if the operation shaft 9 is rotated within the rotation operation range unless the operation shaft 9 is returned to the closed position (A). The pushing action portion 53 does not contact the rotated operation portion 13 of the relay rotating body 14. Accordingly, the valve body 16 is rotated by rotating the operating shaft 9 between the first operating position (b), the second operating position (c), and the third operating position (d) (maximum operating position). Thus, the gas amount can be changed and adjusted (see FIGS. 6 and 16). At that time, the pushing action portion 53 is received by the receiving portion 70 and the receiving portion 71 formed on the outer surface of the instrument plug main body 17, and the rotational operation range is restricted.

  When extinguishing the high thermal power burner 1c, when the operating shaft 9 is returned to the closed position (A), the gas amount adjusting unit 23 is closed, the gas supply is stopped, and the push operating body 15 is engaged with the engaging protrusion. 52 and the cam surface 51 are switched to the pushing action state (see FIG. 11).

  In the above description of the operation, the case of the high thermal power burner 1c is exemplified, but in the case of the small burner 1b, as shown in FIG. 19A, the closing position (A) and the operation shaft 9 are closed (I). The valve element 16 is operated by rotating between the first operation position (b) rotated about 45 degrees from the first position and the second operation position (c) rotated about 90 degrees (b) (maximum operation position) from the closed position (b). The amount of gas is changed and adjusted, and the rotation operation range is set to about 90 degrees. Further, in the case of the standard burner 1a, as shown in FIG. 19B, the range in which the operation shaft 9 can be rotated is the same as that of the high thermal power burner 1c, but rotates about 130 degrees from the closed position (A). At the third operation position (d) (maximum operation position), the gas amount is not maximized but is adjusted to a preset gas amount for cooking rice, and the closed position (I) The second operation position (c) rotated about 90 degrees from the position corresponds to the ignition operation position.

[Another embodiment]
Hereinafter, other embodiments are listed.

(1) In the above embodiment, the push operation body can be switched between the push action state and the push operation release state by changing the position of the operation shaft in the direction of the rotation axis, and the push operation release state. The cam-type switching mechanism and the locking-type holding mechanism are provided, and the operation shaft of the push operating body rotates in accordance with the rotation operation of the operation shaft. An example is shown in which the position in the axial direction is changed and adjusted to switch between the pushing action state and the pushing operation release state, but instead of such a configuration, for example, a return biasing force by manual operation Against this, it is possible to adopt a configuration in which the position of the push operating body is changed in the direction of the rotation axis and switched to the push action state.

(2) In the above-described embodiment, when the operation shaft is in the closed position, the rotation operation of the operation shaft is checked, and the operation shaft is moved in the axial direction to permit the rotation operation of the operation shaft. Although the example in which the rotation operation check mechanism for switching to is provided is illustrated, such a rotation operation check mechanism may not be provided. That is, it is good also as a structure which can perform ignition operation and gas amount adjustment only by rotating operation shaft as it is from a closed position.

(3) In the above embodiment, the angle formed between the axis X of the operating shaft 9 and the virtual extension line obtained by extending the axis Z of the valve operating body 10 to the front side of the device is set to about 70 degrees. Although the gas stove has a configuration in which the rotation axis is set in an oblique direction that is inclined to the front side of the device with respect to the vertical direction, the configuration is not limited thereto, and the axis X of the operation shaft 9 and the valve operating body are not limited thereto. The angle formed by the virtual extension line obtained by extending the ten axis Z to the front side of the device can be implemented in variously changed states .

Gas stove perspective view Partial cutaway side view of gas stove Side view showing configuration of gas appliance stopper Side view showing configuration of gas appliance stopper Plan view showing the configuration of the gas appliance stopper The figure of X axis core direction view which shows the composition of the gas appliance stopper Partial cutaway side view of gas appliance stopper Notched side view of gas appliance stopper The perspective view which shows the attachment state of an instrument stopper main body and a safety valve storage body Exploded perspective view of gas appliance stopper The figure which shows the operation state in the closed position of a gas appliance stopper The figure which shows the operation state in the rotation operation state of a gas appliance stopper The figure which shows the operation state in the ignition operation state of a gas appliance stopper The figure which shows the operation state in the ignition operation state of a gas appliance stopper The figure which shows the operation state in the gas amount adjustment state of a gas appliance stopper The figure which shows the operation state in the gas amount adjustment state of a gas appliance stopper Exploded perspective view of click holder Operation explanatory diagram of the click holding unit Top view of gas appliance stopper

Explanation of symbols

DESCRIPTION OF SYMBOLS 9 Operation shaft 10 Valve operation body 11 Safety valve 12 Push operation part 13 Rotated operation part 14 Relay rotation body 15 Push operation body 16 Valve body 17 Instrument plug main body 18 Safety valve storage body K1 Cam type switching mechanism K2 Locking type holding mechanism K3 Rotation operation check mechanism

Claims (4)

An operation shaft for adjusting the gas amount that can be freely rotated within a rotation operation range for adjusting the gas amount including a closing position for closing the gas supply and an operation position for ignition, and sliding of the axial valve operation body in the axial direction A safety valve that is operated to open the valve, and a relay rotary body that includes a push operation section that rotates and pushes the valve operation body as it rotates, and a rotated operation section.
A push operating body that pushes and operates the rotated operation portion of the relay rotating body in accordance with the rotation of the operation shaft from the closed position to the ignition operation position is rotatable integrally with the operation shaft. A switch operation state is provided so as to be switchable between a pushing operation state in which the rotation operation unit is pushed according to the rotation of the shaft and a push operation release state in which the rotation operation unit is not pushed regardless of the rotation of the operation shaft .
It is a rotary operation type gas appliance plug equipped on the gas stove in the form of operating the operation shaft from the upper side of the top plate ,
The relay rotating body is provided to rotate around a rotation axis perpendicular to the rotation axis of the operation shaft;
The valve operating body is provided so as to slide along a virtual plane orthogonal to the rotation axis of the relay rotating body ;
The operation shaft is configured with the one end side in the rotation axis direction as an operation portion,
The valve operating body is positioned so as to extend from a portion corresponding to the other end side opposite to the operating portion in the rotational axis direction of the operating shaft in the rotational axis direction of the relay rotating body. ,
The operating shaft and the valve operating body are disposed in a state of being in a positional relationship of being bent in a substantially U shape when viewed in the rotational axis direction of the relay rotating body,
The rotary axis of the operation shaft is equipped on the gas stove in an oblique posture inclined to the front side of the device with respect to the vertical direction,
An instrument plug body that houses a valve body for adjusting the amount of gas that is rotated by the operation shaft, and that rotatably supports the operation shaft and the relay rotation body, the safety valve, and the valve A rotary operation type gas appliance plug , wherein a safety valve storage body for storing an operation body therein is formed separately, and the instrument plug body and the safety valve storage body are integrally assembled . A state in which the push operation body can be switched between the push operation state and the push operation release state and is urged to return to the push operation release state by changing the position of the operation shaft in the rotation axis direction. Provided in
A cam-type switching mechanism that switches the push operating body to the pushing action state as the operating shaft is operated to the closed position;
When the operation shaft is rotated from the closed position to the ignition operation position side, it acts on the push operation body so as to maintain the push action state against a return biasing force, and A lock type that releases the lock so as to allow the push operation body to switch to the push operation release state by a return biasing force when the rotation operation with respect to the operation shaft stops at a rotation operation position other than the closing position. The rotary operation type gas appliance stopper according to claim 1, further comprising: The operation shaft is provided in a state of being urged to return to the rotation restricting position so as to be movable over the rotation restricting position and the rotation operation position along the rotation axis direction;
When the operation shaft is located at the rotation restricting position and at the closed position, the operation shaft is restrained from rotating around the rotation axis, and the operation shaft is located at the rotation operation position. The rotary operation type gas appliance according to claim 1 or 2, further comprising a rotation operation restraining mechanism that allows a rotation operation around the rotation axis of the operation shaft over the entire range of the rotation operation range. plug. The rotary operation type gas appliance plug according to any one of claims 1 to 3, wherein the ignition operation position is set to an intermediate position in the rotation operation range .

Images