JPS6196616A - Push button apparatus with safety device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a push-button device with a safety mechanism for switching an operating member of a gas valve valve between an operating state and a non-operating state.

(Prior art) This scale push button device has a first groove that connects the starting point and the ending point, and a second groove that connects the ending point and an intermediate locking point. iI′i, the force l=, the body, and the engaging child moving along the 11-body cam; One of the cam body and the engaging element of the locking device is provided on the machine frame, and the other is provided on the push button or the push rod pushed by the push button, and when the instant button is pressed, the locking device It is generally known that a push button or a push rod is moved to a push operation position.

(Problem to be solved by the invention) The only thing that can be done with B is to press the button on the instep of C1.
Switching part +4 to the 11-movement state (this operation is extremely complicated, but it is easy to operate even if a child or other child is involved).
There is a concern that the operating part (A) may be switched to the initial state of 1'1.

The object of the present invention is to obtain a push button neck mount that eliminates the above-mentioned 16 inconveniences.

(Means for Solving the Problems) The present invention switches an actuating member into an actuating state at the push position of a pushbutton that is slidably supported on a machine frame, and the starting point and the ending point are A cam body equipped with a loop-shaped cam groove consisting of a first groove connecting a connecting point, a second groove connecting an end point and an intermediate locking point, and a third groove connecting a locking point and a starting point, and a cam of the cam body. One of the cam body and the engager of a locking device consisting of an engager that moves along a groove is provided on the machine frame, and the other is provided on the push button or a push rod pushed by the push button, and the push button is In a device in which the push button or push rod is locked in the push operation position by the locking device when the push button is pressed, a release operator is provided to disengage the engagement piece from the cam groove of the force arm body. It is characterized by having been established.

) (Example) An example of implementing the present invention is shown in which the main burner (1a) and the pilot burner (
The valve rod (4) as an operating member equipped with a cutoff valve (3) interposed in a gas supply path (2) to a gas burner unit (1) equipped with a gas burner unit (1b) is switched to a position of I will explain next.

In the drawing, (5) shows a valve housing provided with the gas 41-supply path (2), and the valve rod (4) is slidable in the gas supply path (2) of the valve housing (5). A part of the insertion ζ is provided so as to protrude outside the valve barrel (5), and the cutoff valve (3) is provided with one part of the insertion ζ extending outside the valve stem (4).
The gas supply path (2) is provided in the body and is always connected by a spring (6).
The gas supply path (2) is closed by pressing against a valve seat (2a) provided in the gas supply path (2). (7) is a push rod that is integrated with the push button (8) for switching the valve rod (4) to the operating position, that is, the shutoff valve (3) to the 1g flow valve, and (9) is the push rod that is integrated with the push button (8). ) in the push operation position.This locking device (
9) is the first groove (101) connecting the starting point a and the ending point A as shown in detail in FIG.
) and the end point, the 27th percentile (102
) A cam body 00 equipped with a loop g (10a) consisting of a third groove (103) connecting the locking point C and the dead center a, and a lock that moves along the loop (10a). Gouko (It)
A force l\relaxation 0.0 is supported on the push rod (7), and the engager a is supported at its root in a number of frames ('lz) so that it can swing freely, and its tip is looped. When the push button (8) is engaged with the groove (10a) and continues to be pushed from the starting end position, through the intermediate valve opening position C, to the final end position 2j, the cam body (IG engagement member) 0 Due to which phase movement, the engaging element turret moves from the starting point a of the loop groove (10a) to the first groove (10a).
1) and reaches the end point, and in this state, when you release your hand from the push button (8), the engager (ITJ) passes through the second groove (102) and is locked at the intermediate locking position C, and in this state The valve rod (4), which is the operating member, is arranged to maintain the operating position against the spring (13), that is, the shutoff valve (3) in its open position.

In the embodiments shown in FIGS. 1 to 4, the locking point of the engager (It) remains until the engagement with the loop groove (10a) is released by the release operator 09 described later. It is not possible to release the engagement with C. Therefore, it is not possible to return the valve rod (4), which is one of the moving members, to the non-operating position simply by operating the push button (8).

On the other hand, when a bypass groove (104) connecting the locking point C and the starting point a is provided as shown in FIGS. 5 to 8, when the push button (8) is pressed again, Goko at can move to the starting point a via the bypass FM (104),
Only by operating the push button (8), the valve rod (4) can be switched between the operating position and the non-operating position.

The release operator (l is equipped with a spring (15b) having a claw (15a) at its tip that engages with the engager (+1) of the device (9).
) and the slider (
15c) is pressed in the same direction as the push button (8), and according to the pressing operation, the slider (15c) is moved to the locking device (
9) to avoid moving in the direction away from the operation button (15(
Consists of 1). To explain this further, the slider (15
The base of c) is equipped with a pin (15e), and the button (1
When you press 5 (+), the corresponding operation button (15 (1)
) on the triangular cam (15(1)
The slider (15c) is moved by pressing the pin (15e).

In the drawing, when the ('IO) button (15d) is pressed, it is locked in the pressed position, and when it is pressed again, it is released, as shown in Figure 6. This is a related IL head having almost the same configuration as a stop device.In addition, in 0 shown in the figure, an electromagnetic safety valve (+71) is provided upstream of the above-mentioned cutoff valve (3), and the electromagnetic safety valve (+7) and the cutoff valve(
3), gas is supplied to the main burner (1a) through the shutoff valve (3), and waste is supplied to the pilot burner (1b) through the pilot valve qb provided downstream of the shutoff valve (3). Valve a7)aa was made to operate in conjunction with valve rod (4) described in 11if.

To explain this, push the push button (8) to the terminal position "IB".
When pressed, the shutoff valve (3), electromagnetic safety valve aD, and pilot valve 1g open, and the electromagnetic safety valve 07) faces the burner unit (1). The valve is held open by the discharged charge of the capacitor, and when the push button (8) is subsequently released, the locking device (9) returns to the intermediate valve opening position and only the pilot valve ae closes. The rod (7) is provided with a protrusion (7a) as shown in Figure 1, which intervenes in the operating circuit of one of the igniters facing burner units 1 to (1) when the push button (8) is pressed near end position B. Press the 17i1 switch with the protrusion (7a) to close the igniter (open the igniter), and press the operation button (15d) to
, there is a protrusion (15c) on the slider (15c) which is operated f1.
'), and the protrusion (15C") opens the normally closed switch interposed in the circuit I made it.

In the same figure, Q3LL sparker, [phase] indicates the battery power source. In addition, as shown in FIG.
) with a direct control knob (15d) on the layer mover (15c).
), and the corresponding l! The locking knob (15d) is used to move the engaging element (+1) into the loop groove (1) by moving it to a position approaching and away from the locking device (9).
It is also possible to switch between a state in which it engages with 0a) and a state in which it disengages from it. In addition, in the same figure (101)
(101) indicates that the layer mover (15C) is provided at two positions (along the direction of
) are press-fitted and the slider (15c) is stopped at each position.

When the release operator (19) is not operated, the pushbutton (8
), the locking device (9) is activated, thereby locking the push button (8) or push +1 (7) in the pressed position.Then, the release operator q9 is operated. When the engager (In's cam body (IO's loop fs (10a
) is disengaged. Therefore, when the push button (8) is operated, the push button (8) or the push rod (7) will not be engaged with the +++i operation f1 stone, and will therefore be pushed. There is no inconvenience that the valve lever (4) as a moving member is kept in an operating state.

In addition, in the case shown in FIGS. 1 to 4, the release of the push button (8) is performed by the release operator 09, so that the user does not always forget to operate the release operator 115). However, it is often necessary to switch the valve lever (4), which is the operating member, between the operating state and the non-operating state.
) It would be desirable to be able to switch the valve lever (4) to the inoperative state in any event of an alarm. On the other hand, as shown in FIGS. 5 to 7 or 8, the cam body 00
Bypass (10a) Jru (104): a +
The advantage of starting from t is that the release operator ('l!il) can be used as needed to meet such demands.

In this way, according to the present invention, by providing a release operator for disengaging the engagement element from the cam groove of the cam body, it is possible to prevent the actuating member from being accidentally pushed by a child or the like. There is an effect of Song that can eliminate the danger of being held in a fh state.

[Brief explanation of drawings]

Fig. 1 is a filcIlfi side view of one example of implementing the present invention, Fig. 2 is a slope view of the main part, Fig. 3 is a front view of the cam body, Fig. 4 is a developed view thereof, and Fig. 5 is another embodiment. A perspective view of the main part of the example, a front view of the cam body of Fig. )...I'm not! FJ member (8)...Push button (9)...Part 11 Purchase ○■...Cam (ho (10al...Cam groove (11)...Latcher (1411... Release operation fIr (ioi)...1st t7i (102)...2nd !+'l'1 (1f+3)...3rd groove

Claims (1)

[Claims] The actuating member is switched to the operating state at the push position of a push button that is slidably supported on the machine frame. A cam of a locking device consisting of a cam body having a loop-shaped cam groove consisting of two grooves and a third groove connecting a locking point and a starting point, and an engaging element that moves along the cam groove of the cam body. One of the body and the engaging element is provided on the machine frame, and the other is provided on the push button or the push rod to be pushed by the push button, and when the push button is pressed, the locking device pushes the push button or the push rod. 1. A push button device with a safety device, which is locked in an operating position and is further provided with a release operator for disengaging the engagement element from the cam groove of the cam body.