JPH0341382Y2 - - Google Patents

Description

[Detailed description of the invention] <Technical field of the invention> This invention relates to a flat type push switch.

<Problems to be solved by this invention> When constructing a flat pressure switch, when using the pressure operated type cord switch proposed in Japanese Utility Model Application Publication No. 61-133922, it is necessary to There is a problem in that it is necessary to stretch the cord completely, and a large amount of expensive cord members are used.Moreover, when the pressing force is applied at a point that is not directly above the cord member but is shifted, the sensitivity becomes dull. There was a problem. The present invention attempts to solve such problems.

<Structure of the invention> The present invention provides a fitting groove in the center of the upper surface of a plate-like body, and inserts a pressure conductive type switch element into the stepped height. This flat type press switch is characterized in that a pressure sensitive plate having a side plate and a hook plate provided under the side plate is mounted on the main body, and the hook plate is hooked in the opposing hook groove.

<Example> Examples will be described below based on the drawings.

A fitting groove 3 with a guide groove 2 is provided at the center of the upper surface of a flat plate-like body 1 having a flat surface of a certain size, and hanging grooves 4a and 4b are provided at the bottom of both sides, and a switch is connected to a lead wire 5. Element 6 (pressure conductive type switch)
is inserted into the insertion groove 3 so that the top surface is slightly stepped, and then a pressure sensitive plate 9 having side plates 7a, 7b and hook plates 8a, 8b formed by bending inward from the bottom of the side plates on both sides.
is applied onto the main body 1. The pressure sensitive plate 9 is in contact with the switch element 6, and is separated from the main body 1 at its step height, and the hook plates 8a and 8b on both sides are in contact with the hook groove 4.
Attach the contact surfaces to a and 4b.

Therefore, if you press a wide area from the center of the pressure sensitive plate 9 with a large object, the entire pressure sensitive plate 9 will sink on average and turn on the switch element 6, but if you press the edge of the pressure sensitive plate 9 with a small object such as a finger. Even in this case, as shown in FIG. 3B, the hook plate on the opposite side and the hooking part of the hook groove serve as a fulcrum, and the pushed side sinks slightly to push the switch element 6 and turn it on.

<Effects of the invention> As described above, the present invention allows the use of a code switch to be minimized by simply installing a small switch element in the center of a press switch with a flat surface of a certain size. This has the effect that it can be kept small.

Furthermore, it is possible to provide a flat switch that operates reliably no matter where the edge of the pressure sensitive plate is pressed. Furthermore, since the structure is extremely simple, it is easy to manufacture and has the effect of reducing costs.

[Brief explanation of drawings]

Fig. 1 is a plan view of the first embodiment, which has a square shape as a whole, Fig. 2 is a longitudinal front view of the same, Fig. 3A is a diagram showing an example of the effect of center push, and Fig. 3B is the effect of horizontal push. Figure 4 is a plan view of the second embodiment, which has a rectangular shape as a whole, Figure 5 is a plan view of the third embodiment, which is circular in shape, and Figure 6 shows a protrusion on the inner surface of the center of the pressure sensitive plate. FIG. 7 is a longitudinal sectional front view of the fourth embodiment in which the entire body is wrapped with a wrapping material, and FIG. 8 is a longitudinal sectional front view of the fifth embodiment with the plane enlarged. 2 is a plate-like main body, 2 is a guide groove, 3 is a fitting groove, 4a, 4b is a hanging groove, 5 is a lead wire, 6 is a switch element, 7a, 7
b is a side plate, 8a, 8b are hook plates, 9 is a pressure sensitive plate, 10
is the side plate when it is circular, 11 is the same, inward claw piece,
12 is a projection, 13 is a packaging material such as PVC or rubber, 14
15 is an upper plate for enlargement, 15 is a lower plate, and 16 is an elastic stretchable body.

Claims (1)

[Scope of utility model registration request] A fitting groove is provided in the center of the upper surface of the plate-like body, and a pressure conductive type switch element is inserted at a stepped height.
Hanging grooves are provided below both sides of the main body, a pressure sensitive plate having side plates on both sides and hook plates below the side plates is attached to the main body, and the hook plates are hooked into the opposing hook grooves. Flat type push switch.