JPS60158519A - Interlock pushbutton 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] Industrial applications The present invention is an interlocking push button switch used in a telephone set. It is related to Chi.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Conventional Structure and Problems The conventional interlocking pushbutton switch will be described below with reference to the drawings.

Figures 1 and 2 show a conventional interlocking pushbutton switch.
, 2 is an interlocking switch, and 3 is a dedicated lock release switch, each of which is attached to a U-shaped mounting plate 4. Reference numeral 6 denotes an interlocking plate arranged so as to be movable in a direction perpendicular to the operating direction of the operating bodies 6.7 of the interlocking switches 1 and 2. 13
is an interlocking spring that presses the interlocking parts 5a and sb of the interlocking plate 6 on the interlocking cam parts 6a and 7a provided on the operating bodies 6 and 7 of the interlocking switch 1.2, and one end is connected to the case 9 of the interlocking switch 2. The other end is held by the receiving part 6C of the interlocking plate 6. 1o is an actuator rotatably attached to the bent portion 5d of the interlocking plate 6 by means of a pin 11. Reference numeral 12 has a torsion coil spring centered on the pin 11 and having the hook portion 6e of the interlocking plate 6 and the hook portion 10a of the actuator 1o as fulcrums.The actuator 1o is rotated clockwise 3--2 times to lock the tip 10b of the actuator 10. It has the function of pressing the cam 8a provided on the operating body 8 of the release-only switch 3. 14 to 16 are release springs incorporated in the operating bodies 6 to 8, 17 is a fixed terminal of each switch, and 18 is a movable contact piece.

The operation of the interlocking pushbutton switch configured as described above will be explained below.

Figure 1 shows interlocking switch 1 in the locked state and interlocking switch 2.
and the lock release dedicated switch 3 indicates the release state,
First, the operation of the interlocking switches 1 and 2 will be explained. When the operating body 7 of the interlocking switch 2 is pressed down from the state shown in this figure, the interlocking plate 6 moves in the direction of compressing the interlocking spring 13 by the interlocking cam portion 7a of the operating body 7, and the interlocking switch 1 in the locked state is operated. The body 6 is returned to the released state by the release spring 14. When the operation body 7 is further pressed down, the interlocking portion 6b of the interlocking plate 6 is caused to fall into the interlocking cam portion 7a by the interlocking spring 13, and the operating body γ is locked, and the interlocking switch 1 is
．． The four linked works of 2 are completed. Conversely, when the operating body 6 of the interlocking switch 1 is pressed down, the operating body 6 becomes locked and the operating body 7 becomes the released state, completing the four interlocking operations of the interlocking switch 1.2. Next, the operation of the lock release exclusive switch 3 will be explained. When the operating body 8 is pressed down from the state shown in FIG. 1, the actuator 10 receives an external force on the tip 1ob by the cam portion 8a of the operating body 8 and rotates counterclockwise around the pin 11 as shown in FIG. do.

When the depressing operation is continued to a full stroke, the actuator 1o returns to its original position by the reaction force of the torsion coil spring 12 outward from the cam 8a, as shown in FIG. Next, when the pressing force of the operating body 8 is reduced from this state as shown in FIG. 5, the operating body 8 begins to release, and the tip 10 of the actuator 1o
b moves in the direction of the arrow along the inclined surface of the cam 8a.

With this movement, the interlocking part 6a of the interlocking plate 5 separates from the interlocking cam part 6a of the operating body 6, the operating body 6 which was in the locked state returns to the release position, and all the interlocking switches 1 and 2 and the unlocking switch 3 is in the release state.

However, in the interlocking push button switch configured as described above, the interlocking plate 5 is used for controlling the rotation of the actuator 1o.
It is necessary to use a dedicated torsion coil spring 12 and interlocking spring 13 for controlling the actuator 1o and the torsion coil spring 12, and a pin 11 is required to hold the actuator 1o and the torsion coil spring 12, which increases the number of parts and increases the cost.

If the gap between the pin 11 and the receiving part of the actuator 10 is too small, it will cause trouble in the rotation of the actuator 1o, and if it is too large, the actuator 1o will not move even though the operating body 8 is in a full stroke state. The tip 10a of the holder does not turn over and ends up in the state shown in Fig. 3. Also, if the gap is too large, the interlocking plate 6 will not move a certain amount, and therefore the interlocking switch 1,
The interlocking between 2 and the lock release switch 3 causes soil damage. Furthermore, it is difficult to structurally reduce the size of the actuator 1o section, and as shown in FIGS. 1 and 2, the actuator section has a protruding shape, resulting in an increase in the size of the entire switch.

Purpose of the Invention The present invention eliminates the above-mentioned drawbacks of the conventional switch.It reduces the number of component parts of the switch, making it cheaper in terms of cost, and improving the accuracy of parts assembly. The present invention provides a compact interlocking pushbutton switch that improves the reliability of four interlocking operations between switches and has a structure that effectively utilizes the dead space of the switches.

Structure of the Invention In order to achieve this object, the interlocking push button switch of the present invention includes at least one interlocking switch having an interlocking cam portion on the operating body, and a lock release exclusive switch having a summer type cam on the operating body. The interlocking plate is attached to a mounting plate, movable in a direction perpendicular to the operating direction of the operating body of the interlocking switch, and arranged so as to come into contact with the interlocking cam section of the interlocking switch, and is engaged with and disengaged from the hairstyle cam section of the lock release exclusive switch. A sliding body having a protrusion and movable in a direction perpendicular to the operating direction of the operating body of the lock release exclusive switch and formed such that one end comes into contact with the interlocking plate is provided in the mounting plate, and the sliding body is interlocked with the interlocking plate. It is constructed by engaging between an interlocking plate and a sliding plate an interlocking spring that presses against an interlocking cam of a switch operating body and controls a sliding body. With this configuration, the number of parts can be reduced by integrating the spring that controls the sliding body and the spring that controls the interlocking plate, and the reduced number of parts improves the accuracy of the combination of parts, and By arranging it inside the mounting plate, it is possible to obtain a small-sized interlocking pushbutton switch that is inexpensive, has four interlocking operations, and has high reliability.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 6 to 14. Reference numerals 21 and 22 are interlocking switches, and 23 is a dedicated lock release switch, each of which is attached to a mounting plate 24 having a U-shaped cross section. 2'5 are interlocking cams 26a, 27a which are movable in a direction perpendicular to the operating direction of the operating body 26.27 of the interlocking switch 21.22 and are provided on the operating body 26.27.
This is an interlocking plate arranged so that it can come into contact with the. Reference numeral 29 is a sliding body having a protrusion 29a that engages and disengages with a summer-type cam 28a formed on the lower surface of the operating body 28 of the lock release exclusive switch 23, and is movable in a direction perpendicular to the operating direction of the operating body 28, and has a hook portion. 29b is arranged inside the mounting plate 24 so as to come into contact with the hook portion 25a of the interlocking plate 26. 30
The interlocking parts 25b and 25c of the interlocking plate 26 are connected to the interlocking switch 2.
1.22 interlocking cams 26a, 27a, and controls the protrusion 29a of the sliding body 29 to always be on the same center line as the summer type cam 28a of the operating body 28. The other end is attached to the receiving part 2sd of the interlocking plate 25 in FIG. 7, and in FIG.
is held in

31 to 33 are cases, 34 is a terminal plate for fixing the fixed terminal 36, 36 is a movable contact piece, and 37 to 39 are operating bodies 26 to 28.
It is a release spring built into the.

The operation of the interlocking push button switch constructed as described above will be explained below with reference to FIGS. 7 to 14.

7 and 8 show that the interlocking switch 21 is in the locked state, and the interlocking switch 22 and the unlocking switch 23 are in the released state. When the operating body 27 of the interlocking switch 22 is pressed down in state 9-mi, the interlocking plate 26 moves in the direction of compressing the coil spring 3o by the interlocking cam portion 27a, and the interlocking portion 25b moves from the interlocking cam 26a.
is released, and the interlocking switch 21 is returned to its original state by the release spring 37 to be in the released state.

When the operating body 27 is further depressed, the interlocking switch 22 is locked by the interlocking cam portion 27a, and the interlocking switch 21.
The four linked works of 22 are completed. Conversely, when the interlocking switch 21 is pressed down, the interlocking switch 22 is released and the interlocking switch 21 is locked, as described above.

The above are the four interlocking operations of the interlocking switches 21 and 22. Next, the operation of the lock release exclusive switch 23 will be explained. When the lock release switch 23 is pressed down from the state shown in FIGS. 7 and 8, the sliding body 29 compresses the coil spring 30 by the inclined surface of the summer cam 28a, as shown in FIGS. 9 and 10. move in the direction. At this time, the coil spring 3o is held by the interlocking plate 26d and the receiving part 29c of the sliding body 29. Further, the interlocking plate 25 maintains a stationary state because the interlocking parts 25b and 25c are in contact with the interlocking cam parts 26a and 27a of the operating bodies 26 and 27, respectively. Furthermore, unlocking only 7
Continuing with the push-down operation of the inch 23, when the lock release switch 23 reaches the full stroke state (Figs. 11 and 12), the protrusion 29a of the slider 29 is disengaged from the summer type cam 28a, and the slider 29 is moved by the coil spring 3o. Return to the original position (Figure 7). At this time, the coil spring 3o is held by the interlocking plate 26d, the receiving part 29c of the sliding body 29, and the receiving surface 33a of the case 33, and the hook part 25 of each of the interlocking plate 26 and the sliding body 29
a and 29b are in contact with each other.

Next, when the lock release switch 23 is released from the full stroke state and the state shown in FIGS. The interlocking plate 26 moves in the direction
moves in the moving direction of the sliding body 29 via the hook portion 25a by an amount equal to the amount of movement of the sliding body 29, and the interlocking portion 25b separates from the interlocking cam portion 26a of the interlocking switch 21 in the locked state, and the interlocking switch 21 is in the released state. becomes. At this time 11
- The coil spring 3o is held by the receiving surface 33a of the case 33 and the receiving portion 25d of the interlocking plate 26. When the lock release switch 23 is further released, the hook portions 25a of the interlocking plate 25 and the sliding body 29 are released.

The sliding body 29 receiving the load of the coil spring 3o via 29b returns to the original position shown in FIGS. 7 and 8, and the operation of the unlocking switch 23 is completed.

As described above, according to the embodiment of the present invention, the control spring of the interlocking plate 26 and the control spring of the sliding body 29 are combined into one coil spring 3o.
The number of parts can be reduced and the cost can be reduced by integrating the slider 29 into the interlocking plate 26. Also, since the movement of the sliding body 29 is directly transmitted to the interlocking plate 26, the movement of the interlocking plate 25 is stable, and therefore the locking The reliability of the four interlocking operations between the release-only switch 23 and the interlocking switches 21 and 22 is improved. Further, since the sliding body 29 is arranged inside the mounting plate 24, space can be effectively utilized, and therefore a small-sized interlocking pushbutton switch can be obtained.

Effects of the Invention As described above, the present invention has a structure in which the return function of the interlocking plate and the control function of the sliding body are supplemented by one coil spring, so the number of parts can be reduced, the cost can be reduced, and the assembly precision can be improved. You can manage the movement of the interlocking plate by operating the lock release switch without mainly managing the component accuracy of the single sliding body. Interlocking between the lock release switch and the interlock switch 4
The reliability of the switch is improved, and since the sliding body is placed inside the mounting plate, which is a dead space, space can be used effectively and the entire switch can be made smaller, which has great practical effects. There is something.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a conventional interlocking push button switch, Fig. 2 is a partially cutaway front view of the same, Figs. FIG. 7 is an exploded perspective view of the main parts of an embodiment of the interlocking push button switch.
FIG. 8 is a partially cutaway front view of the same switch, FIG. 8 is a partially cutaway plan view of the same, and FIGS. 9 to 14 are detailed views showing the unlocking operation of the switch of the present invention. 132. 21.22...Interlocking switch, 23...Lock release exclusive switch, 24...Mounting plate, 25
...Interlocking plate, 26-28...Operation body, 29.
...Sliding body, 30... -Coil spring. Name of agent Patent attorney Toshio Nakao and 1 other person d C α3 faction 11

Claims (1)

[Claims] At least one interlocking switch having an interlocking cam portion on the operating body and a lock release exclusive switch having a summer-type cam on the operating body are mounted on a mounting plate, and the interlocking switch is arranged in a direction perpendicular to the operating direction of the operating body of the interlocking switch. An interlocking plate is arranged so as to be movable and come into contact with the interlocking cam part of the interlocking switch, and has a protrusion that engages with and disengages from the hairstyle cam part of the lock release-only switch in a direction perpendicular to the operating direction of the operating body of the lock-release-only switch. a sliding body movable in the mounting plate and formed such that one end comes into contact with the interlocking plate; an interlocking spring that presses the interlocking plate against an interlocking cam of an operating body of the interlocking switch and controls the sliding body; An interlocking push button switch consisting of an interlocking plate and a sliding plate that are engaged between an interlocking plate and a sliding plate.