JPS59160917A - Push lock switch - 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 The present invention relates to a changeover switch having a knob with a pushlock function, and more particularly to a pushbutton switch having a small size switch.

Generally, as a conventional push lock switch, there is one as shown in FIG. 1, for example. That is, this bush lock switch 1 has a mechanism that is fixed in the on state when the first stage knob 3 and second stage knob 5 for switch operation are pressed individually, and a mechanism that is fixed in the on state when one knob is pressed. It has a mechanism that turns off the other knob when it is in the state, and a mechanism that turns off the first stage knob 3 or second stage knob 5 that is in the men state when the reset knob 7 for switch-off having an automatic return function is pressed. For example, in a vehicle, it is built into a remote control mirror operation switch that can operate the remote control mirrors (motor driven) installed on the left and right sides of the vehicle with a single drive switch, and the left remote control mirror It is used as a left/right changeover switch for switching to a drive switch or a right remote control mirror drive switch.

In the bush lock switch configured as described above, the switch can be operated appropriately by operating each knob. On the other hand, since a glue set knob for stopping the switch operation is separately installed, there are problems such as the switch configuration cannot be miniaturized and the number of parts is large.

This invention was made in view of the above, and in order to miniaturize the switch, each of the operation knobs of a button lock switch having two operation knobs can be turned on and off independently by pressing operation, and one of the operation knobs can be turned on and off independently by pressing the button. When the operating knob is turned on (in this case, the other operating knob is pressed to turn off the one operating knob that is on), thereby eliminating the operating knob for A).

Hereinafter, the present invention will be explained in detail using the drawings.

Figure 2 shows a bush lock switch 9 to which this invention is applied.
FIG. 3 is an exploded perspective view of a main part of the switch, and FIG. 3 is a cross-sectional view of the switch. A cam portion 15.17 is formed on the side wall of the operation knob (hereinafter simply referred to as "knob") 11.13 of the bush lock switch 9. On the other hand, in the switch, the lock pin 19.21 is connected to the knob 11.13.
As shown in FIG. 4, the cam portions 15 and 17 are arranged so as to be movable along the cam portions 15 and 17 in response to the button movement.
In FIG. 4, only the cam portion 15 is shown). The lock bin 19.21 has a temporary spring 29 and a lock plate 1 inserted into a pin insertion hole 25.27 formed in the guide board 23 and whose rear end is fixed to the kite board 23 with a rivet 28.
It is assembled (attached) to the bush lock switch 9 in such a manner that it can be freely moved toward and away from the knobs 11 and 13 by means of the knobs 11 and 13.

In other words, the movement of the lock pin 19.21 mentioned above is as follows.
guide. This is done by moving the board 23 and the lock plate 31 together in the left and right direction in FIGS. 3 and 5 to 10. Further, a sloped portion 31a is provided at the upper end of the lock plate 31, and a steel ball 41 supported by a spring 39 is in contact with the sloped portion 31a. A spring 37 is disposed in contact with the lower end of the knob 11.13 in the lock switch 9 and tends to return the knob to the OFF state against the bushing action of the knob. A cam is disposed in the middle and is moved in the direction of the other knob by coming into contact with the side end of the knob when one push of the knob is operated, thereby preventing the push operation of the other knob.

That is, the cam prevents simultaneous locking of the knobs 11, 13 by simultaneous bushings.

Next, the operation of this embodiment will be explained with reference to FIGS. 5 to 10.

When the bush lock switch 9 is in the A) state (Fig. 3)
For example, when the knob 11 is pressed, the knob 11 moves in the direction of locking the knob against the spring 33. As a result, the lock pin 19 is moved along the lower inclined portion 15a of the cam portion 15 formed on the side wall of the knob 11, and the lock plate 31 is moved to the left. The steel balls 41 that are in contact with the slope portions 31a and 31h are pushed upward. (Figure 4 a3 and Figure 5). And the knob 11
When the movement in the locking direction is maximum, [1 pin 1
One reaches the upper inner peripheral portion 15b of each cam portion 15 (FIGS. 4 and 6). When the force pushing the knob 11 is removed, the knob 11 is moved in the opposite direction to the locking direction by the action of the spring 33.
The lock play 1 to 31 is also moved to the neutral position, that is, to the right, by the pressing force of the steel ball 41 pressed by the spring 39 on the slope portion 31a.

However, 1. The lock pin 19 moves along the upper inner peripheral part 15b and reaches the lower inner peripheral part 15C of the cam part 15, preventing the knob 11 from moving, so that it is locked (see FIGS. 4 and 7). figure).

When the knob 11 is pressed in the locked state, the lock pin 1
9 moves from the lower inner peripheral portion 15c to the upper inclined portion 15d and moves along the inclined portion.

Here, if the force pushing the knob 11 is removed, the knob 11 will be moved in the opposite direction to the locking direction by the action of the spring 33 as in the case of locking, or in this case, the lock pin 19 will be moved to the cam part. Since the knob moves along the vertical portion 15e of the knob 15, the knob is not prevented from moving, so the knob is unlocked (see FIG. 4). Similarly, in order to lock the knob 13 in the locked state, there is a bushing handle.
The lock pin 21 is moved along the lower inclined part 17a of the cam part 17 formed on the side wall of the knob 13. ) No is condemned. This movement is transmitted via the kite board 23 to the lock pin 19 located on the lower inner peripheral portion 15C of the cam portion 15.

One lock pin is moved along the lower inner circumference 15c of the cam part 15 in conjunction with the movement of the lock pin 21, and is finally fixed to the vertical part 15e of the cam part 15. The knob 11 is unlocked by the action of the spring 33 (FIGS. 4 and 8).

Note that when knobs 111 and 13 are pressed at the same time, the cam 37 comes into contact with the side ends of both at the same time and cannot be moved, and both knobs 11 and 13 cannot be moved any further. J-4- cannot be done, so both are locked 171 (Figures 9 and 10).

As explained above, in the present invention, the knob for switching the switch 4a is equipped with an independent operation mechanism and an interlocking mechanism, and the switch operation is controlled by Δfree angle. Since we have made it possible to easily set up individual knobs for the
It is possible to change the configuration of the bush lock switch to an IJX type and reduce the number of parts.

[Brief explanation of the drawing]

Fig. 1 shows the first row of push lock switches from Ct, Fig. 2 is an exploded perspective view of the main parts of a push lock switch to which the present invention is applied, Fig. 3 is a cross-sectional view of the push lock switch 1, 1 ii & switch knob. FIG. 4 is an explanatory diagram of the state of movement of the lock pin with respect to the cam part, and FIGS. 5 to 10 are sectional views of the switch for explaining the operating state of the switch. (Explanation of symbols representing main parts of drawings) 11.13.
...Noah 15,17...Cam part 19.21.
... Lock pin 31 ... Lock plate 33, 35 ... Spring 37 ... Cam patent Applicant Nissan Motor Co., Ltd.

Claims (2)

[Claims] (1) In a changeover switch having two operation knobs, each operation knob can be turned on and off independently by pressing operation, and when one operation knob is on, by suppressing the other operation knob, A button lock switch comprising a switch operating member that turns off one of the operation knobs that is turned on. (2) The switch actuating member includes a cam member formed protruding from the side wall of each of the operating knobs, and when any of the operating knobs is pressed, the switch actuating member is guided by the outer peripheral shape of the cam member of the pressed operating knob. The device according to claim 1, characterized in that it has a lock plate that slides in the horizontal direction, and a cam plate that prevents the lock plate from sliding when each of the operation knobs is simultaneously suppressed. Schlock switch.