JPS5813473Y2 - Sensing switch device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a sensing switch device that detects a conductive foil attached to a magnetic tape in a tape recorder or the like as a signal, and the electrical connection is made at the same time as the sensing switch body is installed. It is something.

Conventionally, a sensing switch device that detects conductive foil attached to magnetic tape as a signal is attached to a board of a tape recorder, etc., and then soldered to two terminals with lead wires to connect them to the required electrical connections. It was connected.

However, using lead wires in this way increases the number of parts and requires man-hours for soldering, making it extremely expensive and inefficient.

The present invention eliminates these conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

1 is a metal substrate such as a tape recorder;
A head 2 and a capstan 3 are provided on the top surface, and a hole 4 is formed in a part, and a cut-and-raised protrusion 5 having a chevron-shaped tip is integrally formed on the edge of the hole 4. ing.

Reference numeral 6 denotes a holding body made of an insulating material such as synthetic resin, and a tape guide portion 7 is integrally formed at one end thereof, and switch plates 8 and 9 for detecting conductive foil are press-fitted and fixed at the other end. ing.

On the other hand, the holder 6 has holes 1 for mounting that pass through it vertically.
0 is formed, and a recess 11 into which the cut and raised protrusion 5 can be fitted is formed on the lower surface.

This recess 11 is a switch plate 8 fixed to this holder 6.
. It can be press-fitted between the inner wall 11a of 11 and the inner wall 11a of 11.

With the above structure, the holding body 6 to which the switch plates 8 and 9 are attached is cut and raised between the switch plate 9 and the inner wall 11a, and the protruding piece 5 is press-fitted to be attached to the substrate 1.

Then, the cut and raised protrusion 5 and the switch plate 9 are in pressure contact with each other, so that they are electrically connected, and the screw 12 is inserted into the hole 10 of the holder 6 and screwed into the screw hole 13 of the board 1. By doing so, the holder 6 can be reliably attached.

In the above embodiment, four exposed parts of the switch plate are used, but these may be holes or the like.

As described above, in this invention, the switch board is electrically connected to the board by fitting the holder into the cut and raised protrusion of the board, so the operation of attaching the holder to the board connects the switch board at the same time. Therefore, this method does not require any work such as soldering the lead wires as in the conventional method, so the number of work steps is reduced and the cost is low, and its practicality is excellent.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and the figure is an exploded perspective view of the same essential parts. DESCRIPTION OF SYMBOLS 1... Substrate, 5... Cut-and-raised protrusion piece, 6... Holder, 9
...Switch plate, 11... recess. Second

Claims (1)

[Scope of utility model registration request] A metal substrate is provided with a cut and raised protrusion, and a hollow portion is provided in a holding body made of an insulator to which a switch plate is attached, and a part of the switch plate is positioned within the hollow portion, and the hollow portion of the holding body is A sensing switch device in which a substrate and a switch plate are electrically connected by press-fitting the cut and raised protrusion piece in contact with the switch plate.