JPS6130051Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved structure of a push-and-turn type gas tank, and its purpose is to make it more compact.

As shown in FIG. 7, a general push-and-turn type gas stove has a piezoelectric ignition unit 73 fixed on a substrate 72 that fixes a gas stove body 71, and operates the unit 73 with a cam plate 75 attached to an operating shaft 74. At the same time, an engaging portion 77 is provided on the auxiliary fitting 76 that supports the operating shaft 74, and the engaging portion and the cam portion 78 provided on the cam plate 75 push and restrict the operating shaft 74. There are many things. In this case, the height of the auxiliary metal fitting 76 is set by the height of the unit 73 and the pushing stroke of the operating shaft 74, and there is a problem that the height of the auxiliary metal fitting 76 becomes high and the pot portion becomes large.

This invention was devised in view of the above-mentioned problems.
The following will be explained based on examples.

1 is the main body of Kotoku, and there is a cylindrical storage chamber 2 in the center.
An inlet passage 3, a pilot outlet passage 4, and a main outlet passage 5 are each integrally formed at appropriate positions on the peripheral wall of this storage chamber.

Reference numeral 6 denotes a closure rotatably housed in the storage chamber 2, which includes communicating passages 7 and 8 that communicate with the inflow passage 3 and the pilot outflow passage 4 at a specific rotational position, and a passage 9 that communicates these with the outflow passage 5. A pair of connecting protrusions 10, 10 are provided at the lower part and protrude from the upper part.

Reference numeral 11 denotes a valve shaft provided slidably in the axial direction at the center of the closure 6, one end of which projects from the top of the closure 6, and the other end forming a valve portion 12 for opening and closing the communication passage 8. ing.

Reference numeral 13 denotes an operating shaft located above the closure 6 on the same axis as the closure and supported by an auxiliary fitting 14 so as to be rotatable and slidable in the axial direction. A connector 15 that engages with the connector 10 is integrally molded, and a knob 16 is fixed to the upper end.

17 closes the upper part of the storage chamber 2 and covers one side 1
The operating shaft 13 is inserted through a board having the main body 1 fixed to the bottom surface 8 and the auxiliary metal fitting 14 fixed to the other surface 19. Reference numeral 20 denotes a fixing plate attached to one surface 18 of the substrate 17, which holds the piezoelectric element 21 and a hammer 22 for hitting the piezoelectric element 21 between the substrate 17 and the substrate 17 so that their axes are located on substantially the same plane as the substrate 17. I'm wearing it.

Reference numeral 23 denotes a drive plate that is loosely fitted to the operating shaft 13, and has an engaging portion 25 that appropriately engages with a drive pin 24 protruding from the other surface 19 of the base plate 17 of the hammer 22, and is bent in the middle. A rising portion 26 is provided, and a base portion 27 is provided.
is always in contact with the other surface 19 of the substrate 17.

A cam plate 28 is mounted in the middle of the operation shaft 13 so as to be movable in the axial direction and engaged in the rotational direction, and has a pair of cam plates that engage with the rising portion 26 of the drive plate 23 at an angle of play α. The claw pieces 29, 29' engage and disengage from the stopper part 30 of the auxiliary fitting 14, and the operating shaft 1
A cam portion 31 that regulates the pushing and turning of No. 3 is integrally molded.

Here, the stopper part 30 includes a protrusion 32 that engages with a cam part 31 of the cam plate 28 to prevent rotation of the operating shaft 13 when the operating shaft 13 is located at the fully closed position of the closing member 6; It consists of a taper 33 that slopes upward from the protruding top toward the ignition operation direction of the operation shaft 13.

34 is a spring that presses the drive plate 23 against the other surface 19 of the base plate 17, urges the cam plate 28 to a predetermined position defined by an E-ring, and at the same time always urges the operating shaft 13 upward; 35 is a closed spring; A retaining spring 36 for the child 6 is a spring that biases the valve shaft 11 in the direction of closing the communication passage 8.

Therefore, when the closing member 6 is fully closed, as shown in Fig. 1,
The cam portion 31 of the cam plate 28 is connected to the protrusion 3 of the auxiliary metal fitting 14.
2 and prevents rotation of the operating shaft 13.

Then, when the operating shaft 13 is pushed and rotated, the valve shaft 11 is driven by the operating shaft 13 and the communication passage 8 is opened, and after rotation of the play angle α, one claw piece 29 of the cam plate 28 is moved to the driving plate 2 (See FIG. 4, A and B), and rotates the hammer 22, thereby generating a high voltage in the piezoelectric element 21 (see FIG. 5, A and B). The closure 6 is also rotated so that the inlet passage 3, pilot outlet passage and outlet passage 5 communicate with the communication passages 7, 8 and passage 9, respectively. Then, when the push-down of the operating shaft 13 is released, the operating shaft 13 is moved to a predetermined position by the elasticity of the spring 34, and the valve shaft 11 closes the communication passage 8.

On the other hand, the operation shaft 13 can perform a narrowing operation of the communication passage 7 within the range of the play angle α provided between the drive plate 23 and the cam plate 28.

Further, when returning the operating shaft 13 to the fully closed position, after rotation by the play angle α, the other claw piece 29' of the cam plate 28 engages with the rising portion 26 of the drive plate 23, and the drive plate 23
At the same time, the cam part 31 contacts the taper 33 of the stopper part 30 and moves (see FIGS. 6A and 6B), climbs over the protrusion 32, and returns to its original position.

As mentioned above, the gas kettle according to the present invention has a fixing plate fixed to the base plate to which the kettle body is fixed, and a hammer for hitting the piezoelectric element is held between the two plates with the axis thereof being located on substantially the same plane as the base plate. In addition, the drive plate that drives this hammer is loosely fitted onto the operating shaft so that its base is in contact with the board, and the operating shaft is engaged with and disengaged from the appropriate position of the auxiliary fitting that supports the operating shaft to restrict the pushing and turning of the operating shaft. It has a cam portion that performs this, and is equipped with a cam plate that engages with the drive plate at an angle of play.

With this configuration, the auxiliary fittings can be brought closer to the substrate by about half the outer diameter of the piezoelectric element, hammer, etc., compared to conventional gas sticks, and the size of the gas stick can be reduced. This reduces the space required between the front panel of the device and the board, allowing the device to be made smaller. Furthermore, the amount of gas can be throttled by the play provided between the drive plate and the cam plate. Furthermore, the operating shaft can be regulated using the auxiliary metal fittings and the cam plate, resulting in cost reduction.

[Brief explanation of the drawing]

Fig. 1 is a front vertical cross-sectional view of the gas tank according to the present invention, Fig. 2 is a side view, Fig. 3 is a plan view, and A and B in Figs. 4 to 6 are for explaining the operation of the present invention. FIG. 7 is a sectional view of a main part of a conventional example. 1... Kotoku body, 13... Operation axis, 14...
Auxiliary metal fittings, 17... Board, 18... One side, 19...
...Other surface, 20...Fixing plate, 21...Piezoelectric element, 2
2... Hammer, 23... Drive plate, 24... Drive pin, 28... Cam plate, 31... Cam portion.

Claims (1)

[Scope of utility model registration request] The Kotoku main body is fixed to one side of the board, and an auxiliary metal fitting is provided on the other side to support the operating surface.A fixing plate is fixed to this board, and both plates position the axis on approximately the same plane as the board. A hammer for hitting the piezoelectric element is held between the two sides, and a driving pin of the hammer is provided protruding from the other side of the substrate, and a driving plate that engages with the driving pin and drives the hammer is provided on the other side, and the driving plate is The base part is loosely fitted into the operating shaft with the base in contact with the other surface of the substrate, and the operating shaft is engaged with the drive plate with an angle of play, and is engaged with and disengaged from the auxiliary fitting to restrict pushing and turning of the operating shaft. A gas tank equipped with a cam plate that has a cam section that performs this function.