JPS6242282Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to a switching gas stove with a safety valve for switchingly using two burners.

Conventionally, this type of gas kettle has a taper plug inside the kettle body that can be sequentially switched between four positions: a stop position, a pilot position, a first burner position, and a second burner position by rotating an operating shaft, and the taper stopper is operated by rotating the operating shaft. A safety valve that is opened by pressing the operating shaft through an operating rod that is connected to the shaft and passes through the tapered stopper is provided, and the tapered stopper is connected to the operating shaft and rotates and rotates in the axial direction. The connector is provided with a guide groove that engages with a protrusion provided on the main body, and the guide groove is provided with a guide groove that engages with a protrusion provided on the main body. Providing a horizontal groove portion for guiding a rotational operation across positions, a vertical groove portion for guiding a pressing operation at a stop position or a pilot position, and a horizontal groove portion for guiding a rotational operation from a pilot position to a second burner position, The vertical groove of the guide groove guides the pressing operation at the pilot position of the operating shaft, guides the pilot operation by igniting the pilot burner, and releases the pressing operation after the pilot safety valve is energized and opened by igniting the pilot burner. A type is known in which the lateral groove of the guide groove guides the subsequent rotation operation to the first and second burner positions, but in this type, the lateral groove is generally formed in a straight shape. in,
In such a case, rotation of the operating shaft at the first burner position is not restricted, which is disadvantageous in that erroneous operation is likely to occur.

The purpose of the present invention is to provide a gas stove that eliminates such inconveniences.Inside the gas stove body 1, by rotating an operating shaft 2, a stop position, a starter position, a first burner position, and a first burner position are installed. A taper plug 3 that is sequentially switched between four positions including the two-burner position, and a pilot fire safety valve that is opened by pressing the operating shaft 2 through an operating rod 12 that is connected to the operating shaft 2 and passes through the taper plug 3. 4, and the tapered stopper 3
is linked to the rotational operation of the operating shaft 2 via a connector 11 that is connected to the operating shaft 2 and provides rotation and axial movement. A guide groove 6 that engages with the protrusion 5 is provided,
The guide groove 6 has a horizontal groove portion 14 for guiding the rotation operation from the stop position to the pilot position, a vertical groove portion 7 for guiding the pressing operation at the stop position or the pilot position, and a rotation operation from the pilot position to the second burner position. In the case where a horizontal groove portion 8 is formed to guide the operation, the protrusion 5 is rotated to the first burner position in the horizontal groove portion 8.
form a locking step 9 that engages to restrict the rotation operation to the second burner position, and the locking step 9 prevents the pilot safety valve 4 from being pressed open. It is formed at such a height that it can be disengaged from the protrusion 5.

For example, as shown in FIG.
and pilot gas, which is supplied from the pilot position to the second burner position as shown in FIG. First and second burner gas outlets 1c are supplied with gas at the first burner position and the second burner position, respectively, through the outlet 1b and the through hole 3b formed in the tapered stopper 3, as shown in FIG. ,1
d, and a cap body 1 on the top thereof.
A guide groove 1 provided on the inner circumferential surface of a connector 11 through which an operating shaft 2 is inserted rotatably and freely movable up and down;
When the convex portion 3c protruding from the taper plug 1a is engaged, the taper plug 3 rotates, and when pressed, the operating rod 12 penetrates the taper plug 3 and extends downward.
Pressure is applied to the pilot fire safety valve 4 through the valve 4, and in order to guide this pressure rotation operation, the cap body 10 is provided with a spring 13 on the circumferential surface of the protrusion 5 and the connector 11, which are inwardly repulsed by a spring 13. Guide groove 6 into which the section 5 is inserted
and was installed. The guide groove 6 is shown in FIGS. 2 and 3.
As shown in the figure, there is a horizontal groove section 14 for starting that guides the rotation operation from the stop position to the pilot position, a vertical groove section 7 that guides the pressing operation at the pilot position, and a vertical groove section 7 that guides the rotation operation from the stop position to the pilot position, and a vertical groove section 7 that guides the rotation operation from the stop position to the pilot position. The horizontal groove part 8 has a horizontal groove part 8 that guides the rotation operation from the first burner position to the second burner position, and the horizontal groove part 8 has a first groove part 8a that guides the rotation operation from the pilot position to the first burner position. The second groove part 8b that guides the rotation operation is formed with a step upward, and the step surface at the end of the first groove part 8a forms a locking step part 9 with which the protrusion 5 engages. .

In addition, in the illustrated example, the upper edge of the groove extending from the second groove 8b to the first groove 8a is an inclined edge 15, and the second
The return operation from the burner position to the starter position can be smoothly and quickly performed without burning the burner at the first burner position, and furthermore, the cap body 1
A click ball 17 is resiliently inwardly repelled by a spring 16 at 0, and four click grooves 18-1, 18- are provided on the circumferential surface of the connector 11 into which the ball 17 falls at each position from the stop position to the second burner position. 2,18-3,18
-4, so that rotation to each position can be confirmed by the locking at each position and the sound made when it falls.

In the drawings, reference numerals 19, 10, and 21 indicate return springs provided to resiliently repel the operating shaft 2, the connector 11, and the operating rod 12 upward, respectively.

Next, to explain its operation, first, when the operating shaft 2 is rotated from the stop position shown in each figure a of FIGS. When the vertical grooves 7 match, the pressing operation of the connector 11 and therefore the operating shaft 2 is permitted, and the pressing operation presses the pilot flame safety valve 4 open via the operating rod 12, and the pilot gas outlet 1b is opened. Gas is supplied to the pilot burner connected to the pilot burner, which is ignited, and the pilot safety valve 4 is activated by the output of the thermocouple and other flame detection elements.
is held open. After that, the pressing operation on the operating shaft 2 is released to return the connector 11 and the operating rod 12 upward, and then the operating shaft 2 is rotated toward the first and second burner positions. The first groove part 8a of 8 matches the protrusion 5, and the locking step part 9 engages with the protrusion 5 at the first burner position shown in each figure c, thereby restricting the rotational operation of the operating shaft 2. Then, by pressing the operating shaft 2, the connector 11 is moved downward to align the second groove portion 8b with the protrusion 5, thereby forming the second groove shown in each figure d.
Perform rotation operation to the burner position.

Here, the locking stepped portion 9 is formed at such a height that it can be disengaged from the protrusion 5 by a pressing operation with a pushing width l that does not cause the pilot fire safety valve 4 to open.
In the event of a misfire at the burner position, the opening safety valve 4 will not be prevented from closing.

In the above embodiment, a starting horizontal groove 14 was formed in the guide groove 6 in order to perform the starting operation from the stop position to the pilot position by rotating the operating shaft 2. The starting operation may be performed by pushing and turning the operating shaft 2 as an L-shaped groove consisting of a vertical groove 7 that guides the pressure operation at the stop position shown by and a lateral groove 14 following this.

As described above, according to the present invention, the locking step portion 9 is formed in the horizontal groove portion 8 that guides the rotation operation from the starter position to the second burner position, so that rotation at the first burner position is restricted. This can reliably prevent the risk of erroneous operation beyond the first burner position and into the second burner position, and the locking step 9 has a push width that prevents the pilot fire safety valve 4 from being pressed open. This has advantages such as not preventing the pilot fire safety valve 4 from closing in the event of a misfire, and having a simple structure and low cost.

[Brief explanation of drawings]

Fig. 1 is a cutaway side view of an example of the gas kettle of the present invention, Fig. 2 is a perspective view of its main parts, Fig. 3 is a developed view of main parts to explain its operation, Figs. 4 and 5 a, b, c, d are plan views taken along the lines - and - in Fig. 1 to explain its operation, and Fig. 6 a, b,
c and d are partially cutaway side views illustrating its operation. DESCRIPTION OF SYMBOLS 1...Kock body, 2...Operation shaft, 3...Taper plug, 4...Picture safety valve, 5...Protrusion, 6...Guide groove, 7...Vertical groove part, 8...Horizontal groove part, 9... ...Locking step.

Claims (1)

[Scope of utility model registration request] The stop position, pilot position, first burner position, and second
A taper plug 3 that is sequentially switched between four positions including the burner position, and a pilot safety valve 4 that is opened by pressing the operating shaft 2 through an operating rod 12 that is connected to the operating shaft 2 and passes through the taper plug 3. and is provided to accommodate
The taper stopper 3 is linked to the rotational operation of the operating shaft 2 via a connector 11 that is connected to the operating shaft 2 and can be rotated and moved in the axial direction. A guide groove 6 that engages with the protrusion 5 provided in 1 is provided, and the guide groove 6 has a lateral groove portion 14 that guides the rotation operation from the stop position to the pilot position, and a lateral groove part 14 that guides the pressing operation at the stop position or the pilot position. In the case where a vertical groove part 7 is formed to guide the rotation operation from the starter position to the second burner position, and a horizontal groove part 8 is formed to guide the rotation operation from the starter position to the second burner position. A locking step 9 is formed with which the child 5 engages and restricts the rotation operation to the second burner position, and the locking step 9 has a push width that prevents the pilot fire safety valve 4 from being opened by pressure. A switching gas tank with a safety valve formed at a height that can be disengaged from the protrusion 5 by pressing operation.