JPS5856208B2 - Multipole multidirectional switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a multi-pole multi-directional change-over switch, more specifically, a multi-pole multi-directional switch, more specifically, a multi-pole multi-directional switch, which has a plurality of electrode parts like an operation switch of an electric remote control mirror, and which can be switched by switching each electrode part. This relates to a switch that changes the angle of the mirror horizontally or vertically.

The applicant filed a patent application in 1983 for the above-mentioned switching upper inch.
-99643 (Refer to Japanese Patent Application Laid-Open No. 53-25879)
proposed.

This changeover switch is configured such that a plurality of conductive parts are disposed on one substrate, and switching is performed by sliding a contact piece on the conductive part while applying pressure.

However, in the case of the above-mentioned configuration, since the sliding path of the contact piece with respect to the conductive part is specified, it is predicted that the specific path of the conductive part will wear out early. No matter how thin the wall is, since there is a step between the conductive part and the substrate, it is conceivable that the contact piece will wear out prematurely as it passes through this step.

In addition, the above configuration requires members and mechanisms for pressurization and sliding, which increases the number of parts and increases costs.

The present invention aims to improve this point and provide a multi-pole, multi-directional switch that can switch between multiple poles and multiple directions even with a small number of parts, and which is free from the risk of contact parts being worn out due to the switching. It is.

An example of its implementation will be described below based on the accompanying drawings.

The multi-pole multi-directional switch of the present invention has an insulation sheet) 2, 2
A pair of upper and lower printed circuit boards on which a plurality of circuits 1゜1' of a desired pattern are printed, a base 3 that supports each of the printed circuit boards, and a base 3 that supports each of the printed circuit boards at a position corresponding to each electrode part of the printed circuit board. Cover 11 supporting push button 13
It is composed of.

More specifically, FIG. 3 shows the lower printed circuit board, in which a plurality of circuits 1 in a desired pattern are printed on an insulating sheet 2, and holes 5 in the center and positions in the base 3 are printed on the insulation sheet 2. A hole 6 on the outer periphery for matching and fixing is bored.

In the circuit 1, the black dotted portion 80 is an electrode portion, and 10 is an external connection portion formed to protrude only from the upper portion of the right edge.

FIG. 4 shows the upper printed circuit board, in which, like the lower printed circuit board, a plurality of circuits 1' and an electric board part 8' in a desired pattern are printed on the insulating sheet 2/. , holes 5' and 6' corresponding to the holes 5 and 6 are formed, and through holes 9 are formed at positions corresponding to the respective electrode portions 8 of the lower printed circuit board.

Further, in FIG. 4, reference numeral 10' denotes an external connection portion formed to protrude only from the lower part of the right edge of the insulating sheet 21.

Note that each electrode portion 8, 8' of the upper and lower printed circuit boards is as follows:
Each pair is arranged in any desired set so that they are located close to each other.

The base 3 has a protrusion 4 for supporting the cover 11 at its center.
In addition, a protrusion 7 for positioning and fixing the upper and lower printed circuit boards is protruded from the outer periphery.

The printed circuit board shown in FIG. 4 is superimposed on the printed circuit board shown in FIG. At the same time, the holes 6 and 6' are fitted into the projection 7, and the projection 7 is inserted into the hole 6, 6'.
Fix the upper and lower printed circuit boards on base 3 by caulking.

The state is shown in FIG.

In this way, the electrode portion 8 of the lower printed circuit board 2
is exposed on the upper surface through the through hole 9 of the upper printed circuit board, and the circuits printed on the upper and lower printed circuit boards are insulated by an insulating sheet 2'.

Next, the cover 11 supporting the push button 13 is placed and fixed on the base 3 on which the printed circuit board is fixedly held as described above.

In the case of this embodiment, the push button 13 is provided integrally with the cover 11 via a thin hinge 15.
is arranged so as to be located directly above the electrode portions 8, 8' of each village of the upper and lower printed circuit boards, and a contact 12 that is in electrical contact with the electrode portions 8, 8' is located at the lower end of the push button. .12'
It is installed protrudingly.

In FIG. 7, reference numeral 14 denotes a piece for preventing the cover from falling, which is disposed between the protrusion 4 of the base and the center of the cover 11. As shown in FIG.

Since the multi-pole multi-directional switch of the present invention is constructed as described above, when the push button 13 is not pressed, the eighth
As shown in Figure A, there is a distance between the printed circuit board and the lower surface of the push button 13, but when the push button 13 is pressed, the contacts 12° 12' on the lower surface press the upper and lower printed circuit boards. At this time, the upper printed circuit board is provided with through holes 9 at positions corresponding to the electrode portions 8 of the printed circuit board under the insulating sheet, so that the contacts 12. 12' is the electrode part 8°8' of the upper and lower printed circuit boards
are pressed into contact with each other at the same time, making the corresponding circuit conductive.

In the embodiment shown in FIG. 8, a stepped portion is formed on the base 3 corresponding to the position of the pushbutton 13, but if a thin insulating sheet is used, it can be put to practical use without providing such a stepped portion. It is possible to provide sufficient contact pressure.

As described above, the present invention comprises a pair of upper and lower printed circuit boards in which a plurality of circuits and a plurality of electrode parts are printed on an insulating sheet, and a base that supports the printed circuit boards. The insulating sheet of the upper printed circuit board is provided with through holes at positions corresponding to the electrode parts of the lower printed circuit board, and the upper and lower printed circuit boards are placed in a state where the electrode parts of each village are close to each other. A cover was fixed on the base in an overlapping manner, and on the other hand, a cover supporting push buttons was attached to the base at positions corresponding to the respective electrode parts of the upper and lower printed circuit boards, and the cover was pressed against the lower end of each of the push buttons. Since we have provided contacts that contact each electrode part of the upper and lower printed circuit boards to conduct the pair of electrodes on the upper and lower printed circuit boards, it can be used as a changeover switch simply by selecting a push button and pressing it. Furthermore, since there are no sliding parts as in the prior art, there is no risk of electrode parts or contacts being worn out, and since there is no need for sliding members or mechanisms, the structure is simplified and can be implemented at low cost. There is an effect that can be done.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the multi-pole multi-directional switch of the present invention, with FIG. 1 being a plan view of the base and FIG. 2 being a side view of the base. FIG. 3 is a plan view of the lower printed circuit board, FIG. 4 is a plan view of the upper printed circuit board, and FIG. 5 is a plan view showing the upper and lower printed circuit boards assembled to the base. Figure 6 is a plan view with the cover installed, Figure 7 is the top view of the 6th
FIG. 8 is an enlarged cross-sectional view taken along line BB' in FIG. 6, where A shows the push button when it is released and the opening shows when it is pressed. 1.1'...Circuit, 2,2/...Insulating sheet, 3...Base, 4.7...Protrusion, 5,5', 6゜6'...hole, 8,8'...
...Electrode part, 9...Through hole, 11...
Cover 12, 12'...Contact, 13...
...Push button.

Claims (1)

[Claims] 1 Consisting of a pair of upper and lower printed circuit boards on which a plurality of circuits and a plurality of electrode parts are printed on an insulating sheet, and a base that supports each of the printed circuit boards, the upper one of the printed circuit boards is Holes are bored in the insulating sheet at positions corresponding to each electrode section of the lower printed circuit board, and the upper and lower printed circuit boards are stacked on top of each other with each pair of electrode sections close to each other and fixed on the base. On the other hand, a cover supporting push buttons at positions corresponding to the electrodes of the upper and lower printed circuit boards is mounted on the base, and when the cover is pressed against the lower end of each of the push buttons, each electrode of the upper and lower printed circuit boards A multi-pole multi-directional changeover switch characterized by having a contact point that contacts the upper and lower printed circuit boards to conduct a pair of electrodes on the upper and lower printed circuit boards.