JPH0227343Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention mainly relates to a gas kettle device used in a bathtub.

(Prior art) A conventional bathtub in which a closure provided in the body of a gas cooker is operated by an operating shaft to switch from a fully closed position to an ignition position where an intermediate starter burner is ignited, and then to a fully open position where a main burner is ignited. The gas kottok for use was made in 1974.
Japanese Utility Model Application No. 58-93670 discloses a type of gas cooker that ignites the main gas burner at the same time as the ignition for gas stoves and other gas appliances equipped with small burners.

As shown in Figures 8 and 9, this item consists of a lower closure b that is rotatably housed in the Kotuku body a.
and an upper operating shaft d which rotatably passes through the cover plate c on the upper surface of the lock main body a, and is engaged with the upper end of the closure b so as to be movable against a spring e. A tilted cam surface h on which a protrusion g protruding from the lower surface of the cover plate c slides on the upper surface of the rotary tube f.
A connector j is formed in the rotary cylinder f and is engaged with the lower end of the operating shaft d in a manner that it can be freely moved downward against a spring i. Moving tube f
When the operating shaft d is rotated from the stop position, the protrusion k is engaged with the stepped guide groove l formed in the vertical direction, and when the operating shaft d is rotated from the stop position, the protrusion k engages with the stepped guide groove l formed in the guide groove l in the downward direction.
1, the rotation of the rotating barrel f, and the rotation of the rotating barrel f.
The gas kottok device, in which a downward movement is given to the connector j by the downward movement accompanying the rotation of
It is disclosed in Publication No. 93670.

(Problems to be Solved by the Invention) The gas kettle disclosed in the above-mentioned Japanese Utility Model Publication No. 55-42133 has the disadvantage that the upper part of the closure is enlarged compared to the closure member, resulting in an increase in size as a whole. On the other hand, the gas tank shown in Japanese Utility Model Application Publication No. 58-93670 has the advantage that it can be formed into a small size with approximately the same diameter as a whole.

However, as mentioned above, the device disclosed in Japanese Utility Model Application No. 58-93670 ignites the main burner almost simultaneously with the ignition of the pilot burner, so it can be immediately applied to large bathtubs and other gas appliances. I can't do that.

That is, in the method disclosed in Japanese Utility Model Application No. 58-93670, the main burner is ignited almost simultaneously with the ignition, so the rotation angle of the operating shaft is small, and the rotation angle accordingly. Since the amount of rotation of the rotating tube f is small, and there is no need to rotate the operating shaft d before the ignition position, the projecting piece protruding from the lower surface of the lid c provided on the upper surface of the rotating tube f is Following the inclined cam surface h on which g slides, a stop surface m can be formed which contacts the protruding piece g.

However, in the case of gas appliances for baths and other gas appliances, it is necessary to rotate the operating shaft d from the ignition position to the fully open position, and it is not possible to take a stopper surface on the cam surface. It cannot be used for large gas equipment.

(Means for solving the problem) In view of the current situation, the present invention
The purpose of the gas tank disclosed in the publication is to provide a gas tank device that can be easily used for baths and other large gas appliances, and has a built-in solenoid valve 1 and a gas inlet 2. A closure 6 that sequentially opens the respective outlets 3 and 4 by rotation is inserted into the Kotoku main body 5 having a pilot burner gas outlet 3 and a main burner gas outlet 4, and the closure 6 is inserted into the Kotoku main body 1. Switching operation is performed from the stop position to the intermediate ignition position to the fully open position by means of an upper operation shaft 8 rotatably inserted through the lid plate 7 on the upper surface. A rotary cylinder 10 is provided between the upper end of the closure 6 and the upper end of the closure 6 so as to be freely movable downwardly against the spring 9. A protruding piece 11 protruding from the lower surface of 7 forms a chevron-shaped cam surface 12 on which it slides, and a spring 14 is provided at the end of the operating shaft 8 within the rotary cylinder 10.
The connector 13 is engaged with the connector 13 so as to be freely movable downward against the
and insert the connector 13 into the protrusion 15 on its outer periphery.
When the operating shaft 8 is rotated from the stop position to the ignition position, the protrusion 15 engages with the vertically stepped guide groove 16 formed in the rotary cylinder 10. Engaged with the downward step 16a, the downward movement of the connector 13 due to the rotation of the rotary cylinder 10 and the accompanying downward movement causes the electromagnetic safety valve 1 to be pressed open and ignition occurs before and after this. In the device that is adapted to operate the container 17, a protruding piece 18 is provided that projects outward from the connector 13, and a gap larger than the wall thickness of the protruding piece 18 is provided from the cover plate 7 so that the ignition position is A bent piece 19 is provided with which the projecting piece 18 comes into contact.

(Function) To explain the function of the present invention, when the operating shaft 8 is rotated from the fully closed position to the ignition position shown in FIG. 6, the connector 13 first rotates accordingly; The protrusion 15 is connected to the guide groove 1 as shown in FIG. 4a.
The rotary cylinder 10 is rotated via the connector 13 while engaged with the downwardly facing step portion 16a of the rotary cylinder 10.

When the rotary tube 10 rotates, the protruding piece 11 protruding from the cover plate 7 comes into contact with the chevron-shaped cam surface 12 on the upper surface of the rotary tube 10. A resisting downward movement is applied to the stepped portion 16a.
The connector 13 is also given a downward movement against the spring 9 through the projection 15 that engages with the connector 15, resulting in the state shown in FIG. 4b.

At this time, the closure 6 is rotated by the rotation of the rotary cylinder 10, the pilot burner gas outlet 3 is prepared to open, the ignition device 17 is activated, and the safety valve 1 is opened by the downward movement of the connector 13. A press open valve is applied to ignite the pilot burner.

Next, when the operating shaft 8 is released, the protrusion 15 is disengaged from the stepped portion 16a and is allowed to move upward along the guide groove 16 as shown in FIG. The pressure on the safety valve 1 is released.

The operation so far is not particularly different from that disclosed in Japanese Utility Model Application Publication No. 58-93670.

The present invention provides a projecting piece 18 projecting outward from the connector 13, and also provides a gap l larger than the wall thickness of the projecting piece 18 from the cover plate 7 so that the projecting piece 18 is provided at the following position. Bent piece 1 that the protruding piece 18 abuts
9, when the operating shaft 8 is rotated from the stop position to the ignition position, the projecting piece 18 hits the bending piece 19 and stops reliably, as shown in FIG. 5b.
When the operation of the operating shaft 8 is released at that position, the engagement with the stepped portion 16a of the protrusion 15 is released as described above, and the connector 13 moves upward, causing the bending piece 19 to move upward as shown in FIG. 5c. The contact between the protruding piece 18 and the protruding piece 18 is released. This allows the closure 6 to be further rotated by the operating shaft 8, thereby opening the main burner gas outlet 4 and igniting the main burner via the pilot burner.

(Example) An example of the present invention will be described with reference to an example shown in the drawings.

In the drawings, reference numeral 5 indicates a gas inlet 2, a pilot burner gas outlet 3, and a main burner gas outlet 4, and an electromagnetic safety valve 1 and a closure 6 are provided in the lower part and the upper part of the gas inlet 2, pilot burner gas outlet 3, and main burner gas outlet 4, respectively. It is built-in.

Reference numeral 7 denotes a lid mounted on the upper surface of the main body 5, 8 an operating shaft rotatably inserted through the lid 7, and 10 a shaft attached to the upper end of the closure 6 so as to be freely movable downward against the force of a spring 9. It also shows a rotary cylinder 10 that is engaged with a rotation lock, and the upper surface of the rotary cylinder 10 has two chevrons in the circumferential direction on which a pair of protrusions 11 protruding from the lower surface of the cover plate 7 slide. While forming the cam surface 12, on the side surface of the rotating cylinder 10,
A stepped guide groove 16 is provided with a vertical step 16a that communicates with the lower end edge of the rotary cylinder 1.
0, a cylindrical connector 1 is movably engaged with the lower end of the operating shaft 8 against a spring 14.
3 is inserted and provided. And in the connector 13,
A protrusion 15 is provided on the outer periphery of the protrusion 15.
The step part guide groove 16 provided in the connector 13 is engaged with the step part guide groove 16. To explain this further, the gas inlet (2) provided in the Kotsuk body 5 is connected to the main burner gas outlet through the main gas vent 6a formed in the closure 6 and the pilot gas vent 2b connected thereto. 4 and the pilot burner gas outlet 3, and the solenoid valve 1 opens and closes a gas passage hole 2a provided upstream of the closure 6.

Further, as shown in FIG. 3, the rotary cylinder 10 has a vertical slit 2 provided in the upper end of the cylindrical portion of the closure 6 by hanging pieces 21, 21 protruding from its lower end.
2 and 22 so as to be freely movable up and down.

Incidentally, the igniter 17 is composed of a piezoelectric device attached to the upper surface of the lid plate 7, and in this device, a piezoelectric element 17b is activated by a cam plate 17a provided on the operating shaft 8.
The hammer 17c facing the piezoelectric element 17b is struck at the ignition position, and this is not particularly different from what is generally known, and instead of the piezoelectric device, an igniter that ignites by spark discharge may be used. Needless to say, it is
In this case, it is sufficient to close a switch that intervenes in the spark circuit at the ignition position or at a position slightly before the ignition position.

Further, the connector 13 can be freely moved up and down with respect to the operation shaft 8 by engaging a pin portion integral with the protrusion 15 extending inside the connector 13 with a vertical slit 20 formed at the lower end of the operation shaft 8. It was engaged with the rotation stopper.

Further, an operating rod 23 is provided at the lower end of the connector 13 and extends downward through the closure 6, and the operating rod 23 is urged upward together with the connector 13 by the spring 14, so that the spring of the connector 13 14, the electromagnetic safety valve 1 is pressed to open via the operating rod 23. The solenoid valve 1 is held open by the electromotive force of a thermocouple (not shown) placed in front of the pilot burner (not shown) when combustion begins.

In the illustrated example, the lid 7 is made of two pieces, upper and lower, and the protruding piece 11 is protruded from the upper lid 7a, and the bent piece 19 is provided on the lower lid 7b. Needless to say, it may be composed of a single board.

(Effect of the invention) As described above, according to the present invention, a protrusion protruding outward from the connector is provided, and a gap larger than the thickness of the protrusion is provided from the cover plate at the ignition position. Since a bent piece was provided that the pieces abut, it was
-The type of gas burner that ignites the main gas burner at the same time as the ignition, as seen in Publication No. 93670, can be changed to a gas burner that ignites the main gas burner after ignition and then rotating the operating shaft. This has the effect of providing a gas tank device that is compact and easy to assemble into gas appliances such as bathtubs.

[Brief explanation of the drawing]

In the drawings, Fig. 1 is a cutaway side view of an example of the present invention, Fig. 2 is a diagram of its operating state, Fig. 3 is a perspective view of its component parts in an exploded state, and Figs. Figures 5a, b, and c are line diagrams and side views of the rotating barrel in the unfolded state to explain its operation, Figure 6 is a line diagram to explain the operation of the operating shaft, and Figure 7 is the same as that shown in Figure 1.
Figure 8 is a cross-sectional view of the conventional example; Figure 9 is a cross-sectional view of the conventional example;
The figure is a perspective view of the component parts in an exploded state. 1... Solenoid valve, 2... Gas inlet, 3... Gas outlet for pilot burner, 4... Gas outlet for main burner, 5
...Kottoku body, 6... Closing member, 7... Lid plate, 8...
...Operating shaft, 9, 14... Spring, 10... Rotating tube,
DESCRIPTION OF SYMBOLS 11...Protrusion piece, 12...Chevron-shaped cam surface, 13...Connector, 15...Protrusion, 16...Guide groove, 17...
...Igniter, 18... protruding piece, 19... bent piece.

Claims (1)

[Scope of utility model registration request] A closure that opens each of the above outlets by rotation is inserted into the Kotsuk body which has a built-in solenoid valve and has a gas inlet, a pilot burner gas outlet, and a main burner gas outlet. The switch is operated from a stop position to an intermediate ignition position to a fully open position by an upper operating shaft rotatably inserted through the cover plate, and between the closing member and the operating shaft, A rotary cylinder is provided at the upper end of the closure, which is engaged in a rotational manner so as to be freely movable downward against a spring, and furthermore, on the upper surface of the rotary cylinder,
A protruding piece protruding from the lower surface of the cover plate forms a sliding chevron-shaped cam surface, and is engaged in a rotation locking manner with the lower end of the operating shaft within the rotary cylinder so as to be freely movable downward against a spring. Insert the connector and engage the connector with the vertically stepped guide groove formed in the rotating barrel at the protrusion on the outer periphery of the connector to rotate the operating shaft from the stop position to the ignition position. According to the invention, the protrusion engages with the downward step of the guide groove, and the downward movement of the connector due to the rotation of the rotating cylinder and the accompanying downward movement causes the electromagnetic safety valve to be pressed open. In a device in which the igniter is activated before or after this, a protrusion protruding outward from the connector is provided, and a gap larger than the wall thickness of the protrusion is provided from the cover plate to the ignition position. A gas kettle device comprising a bent piece with which the protruding piece abuts.