JPS6324585Y2 - - Google Patents

Description

[Detailed Description of the Invention] In the present invention, when the push button of one of the plurality of push switches installed in parallel at predetermined intervals on the mounting frame is pressed, that switch is locked and the other switches are also locked. The present invention relates to a parallel type interlocking push switch having an interlocking structure between a plurality of switches, which operates so as to release the switch.

In conventional switches of this kind, in order to maintain a certain relationship between pushbutton operations among multiple push switches, a control board is provided on the mounting frame for mounting the push switches, and the control board is provided with a control panel with a spacing equal to the arrangement spacing of the switches. A locking portion is provided, and this locking portion is locked by locking into a concave and convex locking portion formed on the push button when the push button of a push button is pressed. When you push it in,
In other switches, the control plate operates to disengage the control plate from the push button, thereby unlocking the other switches. The control plate is always urged in one direction by a spring piece so that it can be locked to each push button of a plurality of push switches.

In such a parallel type interlocking push switch, unless the structure of the spring piece is specially devised, a large pressing force is required, resulting in poor operability and poor feel when operating the push button. As a technology to solve this problem,
There is one disclosed in Publication No. 169071. This parallel type interlocking push switch uses a spring piece that has a pressing piece bent into an L-shape with a slit at the base in the center of the base plate, and this is fixed to the frame of the switch. The tip of the pressing piece is pressed against the control plate.

However, by forming slits in the spring pieces of this parallel type interlocking push switch, the length of the pressing piece can be increased, which improves the operating feel of the push button, but it is also insufficient. Moreover, when the pressing piece is elastically deformed, stress concentrates on the base of the pressing piece, which tends to cause fatigue, and there is a possibility that failures such as breakage may occur in this part.

The present invention solves these conventional problems, and the spring piece that is combined with the control board and forms part of the interlocking mechanism is designed to provide a predetermined large spring pressure and provide a comfortable feel when pressing the pushbutton. It is an object of the present invention to provide a parallel type interlocking push switch whose spring pieces have excellent durability.

Embodiments of the present invention will be described below with reference to the drawings.

In the attached drawings, reference numeral 1 denotes a mounting frame made of a metal strip shaped like a gutter, and a rising portion 2 of this mounting frame 1,
3 is provided with a plurality of sets of notches 4 and 5 facing each other at a predetermined interval, a frame 7 is fitted into these notches 4 and 5, and a plurality of push switches 6 are installed in parallel.

The push switch 6 has a push button 13 equipped with a movable contact piece (not shown) on a terminal plate 16 equipped with a fixed terminal 17 so as to be slidable while being guided by a frame 7. The return operation is performed by a return coil spring 15 that is engaged with the frame 7 and the flange A formed on the push button 13. In addition, the following control board 8 is provided on the side of the push button 13.
It is formed of an uneven locking part 14 that comes into contact with the locking piece part 11 of.

The structure of this push switch 6 is conventionally known. Further, the concave-convex locking portion 14 has two concave portions, and in relation to the control plate 8 described below, is locked at two locations corresponding to on/off of the switch.

If the push switches 6 are simply installed in parallel on the mounting frame 1, the push switches 6 will not be locked, nor will they be interlocked with other locks. Only in combination with the next control plate 8 and spring piece 19 can the lock function and lock interlock function be achieved. That is, the control plate 8 includes a plate part 9 formed of a metal strip slidably disposed on the top surface of the bottom of the mounting frame 1, and a plate part 9 formed of a metal strip at a predetermined interval (on the mounting frame 1). Push switch 6 installed in parallel
It consists of a locking piece part 11 attached at an interval of
Through-holes 10 are formed in the plate piece 9 at predetermined intervals, and the protrusions 12 of the locking piece 11 are fitted into the holes 10 to connect the two. The piece portions 11 are arranged so as to be able to be locked in correspondence with the concave and convex locking portions 14 of the push buttons 13 of the plurality of push switches 6, respectively.

Reference numeral 25 denotes a protrusion protruding from the lower part of the locking piece 11. The protrusion 25 prevents the plate piece 8 from swinging from side to side, and also prevents the plate piece 8 from moving between the bottom upper surface of the mounting frame 1 and the plate piece 8. They are formed to maintain a predetermined interval so as not to interfere with sliding left and right when the push button 13 is operated.

The control plate 8 is biased by a spring piece 19 provided on the push switch 6 disposed at the end of the mounting frame 1, and the locking piece 11 engages the concave and convex locking portion 14 of the push button 13 of the push switch 6. The two mesh with each other by being elastically pressed against each other, and the locking action of the switch is achieved.

As shown in FIGS. 3 to 6, the spring piece 19 has a winding portion 2 between one side portion 20 and the other end portion 21.
2, and both sides thereof are formed in an L-shape, a bent locking part 20a is provided at the end of one side 20, and a contact part 23 is bent into a U-shape at the end of the other side 21. It is made of an elastic wire having a shape, and is placed on the frame 7 of the push switch 6 placed at the end of the mounting frame 1, with one side 20 of the push switch 6 placed perpendicular to the length direction of the frame 7, and bent and locked. Part 20
a is locked and attached to the side of the frame 7, and the contact portion 23 is pressed into contact with the locking piece 11 of the control plate 8.

FIG. 6 shows the state of operation (elastic deformation) of the spring piece 19. By configuring the spring piece 19 in such a shape, the spring piece 19 can be pressed when the push button 13 of the push switch 6 is pressed. During operation, as shown in FIG. 6, the other side portion 21 and the U-shaped contact portion 23 are elastically deformed. That is, the contact portion 23 is first elastically deformed, and then the other side portion is deformed elastically. 21 is elastically deformed, so to speak.
The elastic deformation occurs in stages, and the stress applied to the spring piece 19 is dispersed over a wide range.

As described above, the parallel interlocking push switch of the present invention has a winding portion between one side and the other side of the spring piece for biasing the control plate constituting the interlocking lock mechanism. and both sides are formed in an L-shape, and each side has a bent locking part at the end thereof,
It is made of an elastic wire with a contact part bent into a U-shape at the end of the other side, and the bent locking part is locked to the frame of the push switch placed at the end of the mounting frame. At the same time, since the contact part is pressed against the control plate, the spring piece has two long parts: the U-shaped contact part that comes into direct pressure contact with the control plate, and the other side that follows this. Since the two locations are elastically deformed in stages, the push button can be operated easily and has a good operating feel. Furthermore, since the stress applied to the spring piece can be dispersed without being locally concentrated, the spring is less fatigued and reliability is improved.

[Brief explanation of the drawing]

FIG. 1 is an enlarged plan view of a parallel interlocking push switch according to an embodiment of the present invention, with a portion cut away; FIG. 2 is an enlarged side view; FIG. 3 is an enlarged side view of a spring piece; The figure is an enlarged front view of the spring piece, FIG. 5 is a partially enlarged plan view showing the relationship between the control plate and the spring piece, and FIG. 6 is an enlarged side view showing the operating state of the control plate and the spring piece. 1...Mounting frame, 6...Push switch, 7...
...Frame, 8...Control board, 13...Push button,
19... Spring piece, 20... One side part, 21... Other side part, 22... Winding part, 23... Contact part.

Claims (1)

[Scope of utility model registration request] A push switch consisting of a terminal board with a fixed terminal and a pushbutton with a movable contact piece arranged so as to be slidable while being guided by a frame is fixed to a mounting frame at a predetermined interval. A parallel type interlocking push switch has a control plate disposed in the frame to lock the push button by pressing the push button, and has a winding part between one side and the other side, and Both sides are L
A spring piece made of an elastic wire, which is formed into a letter shape and has a bent locking part at the end of one side and a contact part bent in a U shape at the end of the other side, is attached to the mounting frame. 1. A parallel interlocking push switch, characterized in that its bent locking portion is locked and attached to the frame of the push switch disposed at the end, and its contact portion is pressed into contact with the control plate.