JPS6335241Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is mainly applied to the kottoku shaft of a gas kottoku.
That is, the present invention relates to a device which provides a click stop at a medium heat position and a low heat position.

In the prior art, as shown in FIG. 1, a rotating plate b on a cock shaft a has a slit c inclined with respect to the radial direction, and a ball d in the slit c that is pushed by the slit c and can move inward and outward. The rotating plate b is arranged on the rotation path of the ball d.
The ball holes e and f are arranged to engage with the first and second rotation positions. Thus, when the cock shaft a is rotated counterclockwise from the stop position to the high heat position together with the rotating plate b, the ball d moves to an inner position in the slit c as shown in the figure and rotates, not engaging with the ball holes e and f. Next, when the cock shaft a is returned to its original position, the ball d moves outward and rotates, engaging with the ball holes e and f on its rotation path in sequence, and engaging with the medium heat position and the low heat position. There are known types of click stop devices that can obtain a click stop, but in this case, the ball d has two positions, an outer position and an inner position in the slit c as shown in the figure, and the ball holes e and f are on the rotation path of the ball d in the outer position, so that when the cock shaft a is once rotated clockwise to return to the low flame position and then rotated counterclockwise again to the high flame position, the click stop for the medium flame position cannot be obtained. To explain this in detail, for example, as shown on the right side of Figure 2, when it is returned to the low flame position and then rotated toward the high flame position, the ball d is in the inner position in the slit c, and thus passes through the inside of the ball hole e and does not engage with it, resulting in the inconvenience of no click stop. An example of a click stop device that does not have such a disadvantage is shown in Japanese Patent Publication 1973-1983.
A click-stop device such as that disclosed in Publication No. 4662 is also known. However, this device requires three ball holes to eliminate such inconveniences, and for example, the medium heat position is clicked-stopped by separate ball holes when rotated clockwise and counterclockwise, and therefore, due to manufacturing errors, it is not necessarily clicked-stopped at the same position. The object of the present invention is to obtain a device that does not have such inconveniences, and a rotating plate 1 that rotates integrally with a cock shaft 7 that is rotated between the stop position and the high heat position is provided with a slit 2 whose slit direction is inclined forward or backward with respect to a radial line connecting the inner end of the slit 2 and the center of the rotating plate 1, and a ball 3 is interposed in the slit 2 so as to be movable between its inner and outer positions, and the first and second rotation positions of the rotating plate 1, which are located midway between the stop position and the high heat position of the cock shaft 7, are inclined forward or backward with respect to a radial line connecting the inner end of the slit 2 and the center of the rotating plate 1, and the ball 3 is interposed in the slit 2 so as to be movable between its inner and outer positions. In the present invention, the slit 2 is formed relatively long, and the ball hole 4 is disposed on the rotation locus of the ball 3 located at an intermediate position between the inner position and the outer position of the slit 2. The ball hole 5 is disposed on the rotation locus of the ball 3 located at the outer position of the slit 2 when the slit 2 tilts forward, and on the rotation locus of the ball 3 located at the inner position of the slit 2 when the slit 2 tilts backward.

FIG. 3 shows one example of this, in which the rotating plate 1 is fixed on a pivot shaft 7 extending from a pivot body 6 and is rotated accordingly. The slit 2 has a slit direction inclined forward with respect to the line connecting the end of the slit 2 and the center of the rotating plate 1, as shown in the figure, or a slit direction with respect to the line as shown in the fifth figure. In the former case, when the rotary plate 1 is in the high flame position, the ball 3 is in the inner position of the slit 2, and the ball hole 5 is on the rotation trajectory of the outer position, but in the latter case is the outer position, and the ball hole 5 is assumed to be on the rotation locus of the inner position.

To explain its operation, for example, see Figures 3 and 4.
As shown in the figure, when the ball 3 rotates counterclockwise from the rest position to the high flame position, the ball 3 is moved to the slit 2.
The ball 3 rotates to the inner position and does not engage with the ball holes 4 and 5, but if the ball 3 is then turned back clockwise, the ball 3 sequentially moves to the intermediate position and the outer position. A click stop is obtained by engaging with each ball hole 4, 5 on each rotation locus. Furthermore, considering the case where the ball 3 is rotated counterclockwise from the low heat position by rotating clockwise to the high heat position again, the ball 3 moves from the inner position to the intermediate position while reaching the medium heat position, and remains at the medium heat position. It engages with the ball hole 4 to provide a click stop.

The one shown in FIG. 5 is substantially the same, and its operation is shown in FIG. 6.

In this way, according to the present invention, the ball 3 is movable in three stages: the inner position, the outer position, and the intermediate position, and the ball hole 4 is located at the intermediate position between the inner position and the outer position of the slit 2. When the slit is tilted forward, the ball 5 is placed on the rotation locus of the ball 3, which is located outside the slit 2. By disposing the ball 3 on the rotation locus located inside the slit 2, it is possible to always obtain a click stop at the low heat position and the medium heat position, for example, by applying it to a gas stove. The structure is extremely simple and can be obtained at low cost, and there are no disadvantages seen in the conventional example.

[Brief explanation of the drawing]

Fig. 1 is a front view of the conventional example, Fig. 2 is an explanatory diagram of its operation, Fig. 3 is a front view of one example of the proposed device, Fig. 4 is an explanatory diagram of its operation, and Fig. 5 is another diagram. FIG. 6 is a front view of one example of the above, and is an explanatory diagram of its operation. 1... Rotating plate, 2... Slit, 3... Ball, 4, 5... Ball hole.

Claims (1)

[Scope of utility model registration request] The slit direction of the slit 2 is connected to the inner end of the slit 2 and the center of the rotating plate 1, which is rotated by a rotary shaft 7 that is rotated between the stop position and the high flame position. A ball 3 is provided in the slit 2 so as to be movable between an inner position and an outer position thereof, and a stop position of the shaft 7 is provided. The first rotating position of the rotating plate 1 is located between the high flame position and the second rotating position.
Each ball hole 4 in which the ball 3 engages in the rotational position;
5, the slit 2 is formed relatively long, and the ball hole 4 is formed so that the ball 3, which is located at an intermediate position between the inner and outer positions of the slit 2, rotates. Provided on the trajectory, the ball hole 5 is
When the slit 2 tilts forward, the ball 3 located at the outer position of the slit 2 follows the rotational trajectory, and when the slit 2 tilts backward, the ball 3 located at the inner position of the slit 2 follows the rotation trajectory. 3. A clit stop device arranged on the rotation locus of No. 3.