JPS6027899B2 - Gas appliance timer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a timer device used in gas stoves and other gas appliances that provides a set time control to a gas valve built into the timer main body.

Conventionally, this type of timer device generally uses a method that allows the gas valve to open for a set time and then opens the valve. It would be desirable to be able to do this without providing a separate timer device.

It is an object of the present invention to provide a device that satisfies the above requirements, in which a main shaft and a sub-ball are attached to a timer main body having a built-in gas valve, and the sub-shaft is rotatably inserted into the main shaft. and a sub-shaft is provided so as to rotate with the rotation of the main shaft by the winding force of a coil spring, and a main timer cam and a sub-timer cam are provided on the main shaft and sub-shaft to support a follower connected to the gas valve. are connected to each other, one of these timer cams is configured to open the gas valve in the fully open state, and the other is configured to open the gas valve in the half open state, thereby controlling the rotation of both timer cams. Accordingly, the follower is brought into contact with the timer cam from one side to the other. Next, one example of implementing the present invention will be explained with reference to attached drawings.

In the drawings, reference numeral 1 designates a timer main body that includes a timekeeping section 2 that houses a spring and other timekeeping parts on the upper and outer sides, and the timer main body 1 has a gas inlet 3 on the lower side and one side thereof, that is, the left side in the drawings. It has a gas outlet 4 and a built-in gas valve 5 that faces the outlet 4 and moves forward and backward to open and close it. 6
7 shows a main shaft having a main dial 6a at the upper end protruding from the timekeeping part 2; 7 shows a sub-shaft rotatably inserted into the main shaft 6 and having a sub-dial 7a at the upper end; When the main shaft 6 is rotated by the winding force of a coil spring 8 wound around the outer periphery of the main dial 7a, the main shaft 6 rotates accordingly, and both ends of the coil spring 8 are connected to protrusions 9 formed on the main dial 6a. When the Liu axis 7 is rotated while facing both sides of the holder, only this axis can be freely rotated.

In addition, the lower ends of both shafts 6, 7 are housed in the timer main body 1, and the timer cams 10, 11 are connected vertically on the same axis, and the follower is attached to the gas valve 5 on the right side. 12 was made to be the most important. The follower 12 is screwed onto the threaded end portion 14a of the right connector 14, which is springed leftward by a spring 13 in the follower piece 12a connected thereto. The lotus piece 5a connected to the gas valve 5 was connected to the part 14b by a spring 15 in a pressure saddle state.

The timer cams 10 and 11 of the main shaft have recesses 10 on their peripheries.
It is configured as a circular cam having recesses 10a and 11a, and when the follower 12 falls into the recesses 10a and 11a, the connector 14
The left movement of the main timer cam 10 causes the gas valve 5 to open, and if the main timer cam 10 is formed to have a relatively small diameter and the follower 12 is moved around the periphery of the main timer cam 10, the connector 14 is moved slightly to the right. When the gas valve 5 is opened in a half-open state, and the sub-timer cam 11 is made to have a relatively large diameter, and the follower 12 is brought into contact with its cylinder green, the connector 14 is further moved to the right. It is assumed that the gas valve 5 is in a fully open state.

Note that the half-open state here means a state in which the gas amount is reduced by decreasing the valve opening from the fully open state, and does not mean only a state in which the valve opening is half of the fully open state. In the drawing, reference numeral 16 denotes an adjustment screw that finely adjusts the degree of opening of the gas valve 5 when it is half open or fully open by rotating the connector 14 and adjusting the screwing position of the lotus piece 12a of the follower 12 to the left or right. , 17 are the main and sub-axes 6 and 7
To prevent gas from leaking between the parts, 18 is a holding plate for the lotus pieces 5a and 12a, and 19 is a stopper formed on the sub dial 7a to control the rotation range of the sub-koji 7. . Next, to explain its operation, when the timer device is in an inconvenient state, as shown in FIG. To set the closing time of the gas valve 5 to, for example, 60 minutes, turn the main dial 6a to the right and set the timer scale to "60". Make it match the marking point on the outside.

In this case, as the main shaft 6 rotates, the subshaft 7 also rotates via the braking coil spring 8, and the follower 12 contacts the peripheral edge of the sub-timer cam 11, causing the gas valve 5 to fully open. The state shown in FIG. 7b is reached.

Next, set the half-open time of the gas valve 5 to, for example, 20 minutes.
When the main shaft 6 is rotated to the left to match "20" on the timer scale in a, the main shaft 6 is stopped by the timer 2, and only the sub shaft 7 is rotated against the braking force of the coil spring 8. A phase difference corresponding to 20 minutes is provided between the recesses 10a and 11a of the sub-timer cams 10 and 11, resulting in the state shown in FIG. 7c. After the time setting operation is completed, the main shaft 6 is moved to the timer section 2.
As the subshaft 7 is rotated back to the left by the operation of The valve 5 is maintained in the fully open state as shown in FIG.
The gas valve 5 falls inward and comes into contact with the periphery of the main timer cam 10 as shown in FIG. 7e, and the gas valve 5 is switched from a fully open state to a half open state. Thereafter, the rotation of the sub-timer cam 11 and therefore the sub-shaft 7 is regulated by the follower 12, and only the main shaft 6 is regulated by the coil spring 8.
The follower 12 continues to rotate against the braking force of the main timer cam 10, and when 20 minutes have elapsed since the gas valve 5 is switched to the half-open state, the follower 12 falls into the recess 10a of the main timer cam 10, and the gas leaks as shown in FIG. 7a. This causes the valve 5 to close.

In this case, the gas valve 5 is controlled by the setting of the sub dial 7a.
It is also possible to have the valve in a fully open state or a half open state over the entire set time.

FIG. 8 shows another embodiment, in which the main timer cam 10 is configured to have a protrusion 10b with a green circumference, and the sub-timer cam 11 is configured with a protrusion 1 having a larger diameter than the protrusion 10b with a circumference of the main timer cam 10.
1b, the gas valve 5 is fully opened by applying the follower 12 to the circumference of the main timer cam 10, and then half-opened by the sub-timer cam 11 coming into contact with the protrusion 11b. status barrier and finally the protrusion 1 of the main timer cam 10.
The valve is made to close when it comes into contact with 0b. As described above, according to the present invention, a timer cam is provided so that gas can be supplied with the gas valve in a half-open state for a predetermined period of time before the timer setting time elapses, and the requested request can be fulfilled. It has a certain effect that can be satisfied.

[Brief explanation of the drawing]

FIG. 1 is a cut side view of an example of the device of the present invention, FIGS. 2 to 5 are cross-sectional views taken along lines 0--V to V-V in FIG. 1, and FIG. FIG. 7 is a diagram explaining its operation, and FIG. 8 is a diagram of another embodiment. 1...Timer main body, 5...Gas valve, 6...
...King axis, 7...Sub-axis, 10...Main timer cam, 11...
... Sub-timer cam, 12... Follower. Figure 1 Figure 2 Figure 4 Figure 3 Figure 5 Figure 6 Figure 8 Figure 7 Figure 7

Claims (1)

[Claims] 1 The main shaft and sub-shaft are inserted into the main shaft of a timer with a built-in gas valve, and the width shaft is rotatably inserted into the main shaft, and the width shaft is rotated with the rotation of the main shaft by the winding force of a coil spring. A main timer cam and a sub-timer cam are connected to the main shaft and the sub-shaft, respectively, and a follower connected to the gas valve is brought into contact with the main shaft, and one of these timer cams is used to open the gas valve in a fully open state. and the other is configured to open the gas valve in a half-open state, so that rotation of both timer cams causes the follower to come into contact from one timer cam to the other timer cam. Timer device for gas appliances.