JPH044333Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a pushbutton switch whose pushbutton portion attached to a printed circuit board or the like is illuminated.

(Prior art) Requirements for conventional push button switches attached to printed circuit boards, etc. include that they have the strength of a switch, can prevent malfunctions, are compact, and are easy to manufacture. be done.
A push button switch is shown as a conventional example of a structure in which the side surface of the spring of the push button switch is pressed and the movable piece is supported by the end surface of a support plate. This push button switch is not one for a printed circuit board, but is an example of a normal micro switch.

To explain this using an example shown in FIG. 5, a common terminal 20 and a normally open terminal 21 are provided on a frame 19, and a movable piece 23 is swingably attached to a support plate 22 provided in a U-shape above the common terminal 20. and the common terminal 20 are connected by a spring 24. Also, movable piece 2
The contact 25 provided at the tip of 3 is the contact 27 provided on the dummy terminal 26 and the normally open terminal 21
The contact point 28 can be brought into contact with one side. When the push piece 29 is pushed in the direction of the arrow, the spring 24 is pushed downward, and the tip of the movable piece 23 moves downward to perform the switch operation. However, this idea has the following disadvantages. That is, the support plate 22 that fixes the movable piece is floating inside the frame and is unstable, and a dummy terminal 26 that is unrelated to the switch operation is required, and if this dummy terminal 26 is not provided, the frame Contact point 25 at the dotted line part of body 19
If they are brought into contact with each other, there will be no problem in operation, but in this case, there is a drawback that the assembly work cannot be carried out efficiently.

(Problems to be solved by the invention) The present invention solves the above-mentioned conventional drawbacks and provides a push button switch that can be attached to a printed circuit board, etc. It is small and easy to manufacture, and has sufficient strength to prevent malfunctions. To provide a push-button switch that can be operated and is inexpensive to manufacture.

(Means for solving the problem) The present invention includes a pair of support columns 3 erected facing the bottom plate 2 of the box body 1, and a light emitting diode terminal 6 embedded in the notch 4 of the support column 3. The lower end is provided to protrude outside the bottom plate 2, the light emitting part 5 of a light emitting diode is provided at the upper end of the terminal 6, and the light emitting part 5 is located in the empty space of the pusher piece 15 provided in the box body 1 so as to be able to move forward and backward. 2, bend the upper end of the common terminal 7 provided in FIG. A support piece 8 is formed by bending it into a shape, and a contact 12 is provided at the tip of a movable piece 10 whose rear end is locked in a notch 11 provided on the front end surface of the support piece 8. Contact 13 of the normally open terminal 9 provided at 12 on the bottom plate 2
Or a stopper 14 provided at the tip of the common terminal 7
The movable piece 10 and the common terminal 7 are connected by a spring 18, and the operating protrusion 16 provided on the push piece 15
is brought into contact with the spring 18, and the operating protrusion 16
This is a push button switch characterized in that the movable piece 10 is swung around the notch 11 by the vertical movement of the switch, thereby enabling switching.

(Function) As described above, in the present invention, the upper end of the common terminal 7 provided on the bottom plate 2 is bent into an L-shape, and the side part thereof is bent into a gate shape to form the support piece 8. 8 is in contact with the opposing surfaces of the supporting columns 3, 3 and the bottom plate 2, and the rear end of the movable piece 10 is locked in the notch 11 formed in the supporting piece 8, so that the supporting piece 8 is connected to the supporting column 3. Bottom plate 2
The movable piece 10 is supported so that it does not come into contact with and float, and the rear end of the movable piece 10 engages with the notch 11 of the support piece 8 and the opposing surfaces of the support columns 3, 3 and does not come off.
Since the rear end of the 0 is supported by the notch 11 of the support piece 8 and the side part is guided by the support column 3, it is easy to assemble and will not come off during use. Further, a contact point 12 provided at the tip of the movable piece 10
Since the movable piece 10 comes into contact with the stopper 14 at the tip of the common terminal 7, the position of the movable piece 10 can be determined easily and assembly is easy. Furthermore, terminals 6 of light emitting diodes are placed in the notches 4 of a pair of support columns 3 which are set up to face the bottom plate 2.
, and the tip of the terminal 6 is provided so as to protrude outside the bottom plate 2, so that the terminal 6 of the light emitting diode
Using itself as a connection terminal of the light emitting diode 5,
Can prevent disconnections, connection errors, etc.

(Example) The present invention will be explained with one example.

A support hole 4 is provided in a pair of support columns 3 which are erected in a bottom plate 2 of a box body 1 made of a material such as an insulating material so as to face each other approximately at the center, and a terminal 6 of a light emitting diode is inserted into this notch 4. The gap is filled with an appropriate material for reasons such as having the tip protrude outside the bottom plate 2 and preventing the terminal 6 from rolling within the notch 4 afterward. The light emitting part 5 of the light emitting diode is located in the space of the reflective part in the pusher piece 15 of the box 1, thereby improving reflection efficiency.

The tip of the common terminal 7 provided at the end of the bottom plate 2 is bent into an L-shape at a position parallel to the bottom plate 2. A support piece 8 is formed on the common terminal 7 by bending a side portion of the common terminal 7 into a gate shape so as to contact the opposing surface of the support column 3 and the bottom plate 2. A notch 11 is provided in the front end surface of this support piece 8, and the rear end of the movable piece 10 is in contact with it. Movable piece 1
A contact 12 provided at the tip of the terminal 0 can contact either a contact 13 connected to a normally open terminal 9 provided on the bottom plate 2 or a stopper 14 provided at the tip of the common terminal 7, and is common to the movable piece 10. The terminal 7 is connected with a spring 18, and the operating protrusion 16 provided on the push piece 15 so as not to contact the light emitting diode is brought into contact with the upper surface of the spring 18, and the vertical movement of the operating protrusion 16 causes the movable piece to move. 10 can be swung around a notch 11 to enable switching.

Note that the lower part of the pusher piece 15 moves up and down while being guided by the support column 3, as shown in FIG. In the figure, reference numeral 17 denotes a decorative cover that is covered with the pusher piece 15. FIG. 4 is an enlarged partially cutaway view of the contact portion, showing an embodiment in which no contact is provided and the end of the terminal is used as the contact portion.

(Effect of the invention) Therefore, according to the invention, when manufacturing a push button switch, the upper end of the common terminal 7 provided on the bottom plate 2 is bent into an L shape, and the side part thereof is bent into a gate shape. to form a support piece 8, the support piece 8 was brought into contact with the opposing surfaces of the opposing support columns 3, 3, and the bottom plate 2, and the rear end of the movable piece 10 was locked in a notch 11 formed in the support piece 8. Therefore, the support piece 8 comes into contact with the support column 3 and the bottom plate 2 and does not float, and the rear end of the movable piece 10 engages with the notch 11 of the support piece 8 and the opposing surfaces of the support columns 3, 3. The rear end of the movable piece 10, which performs the switch operation, is supported by the notch 11 of the support piece 8 and is guided at the side by the support column 3, so that it does not come off during use. There is no. Further, since the contact point 12 at the tip of the movable piece 10 comes into contact with the stopper 14 at the tip of the common terminal 7, the position of the movable piece 10 can be easily determined and assembly is easy. Furthermore, by using the terminals of the light emitting diodes used for illumination as external terminals, the number of parts can be reduced and disconnections, connection errors, etc. can be prevented. Moreover, the structure of the present invention itself is simple and has excellent effects such as being able to be manufactured at low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front cross-sectional view of the present invention, FIG. 2 is a cross-sectional view taken along line A-A of the same, FIG. FIG. 5, which is an enlarged partially cutaway view of the contact portion, is a conventional cross-sectional explanatory view. 1 is a box body, 2 is a bottom plate, 3 is a support column, 4 is a notch, 5 is a light emitting part of a light emitting diode, 6 is a terminal of a light emitting diode, 7 is a common terminal, 8 is a support piece, 9 is a normally open terminal , 10 is a movable piece, 11 is a notch, 1
2 and 13 are contacts, 14 is a stopper, 15 is a push piece, 16 is an operating projection, 17 is a decorative cover, 18 is a spring, 19 is a frame body, 20 is a common terminal, 21
...Normally open terminal, 22 is a support plate, 23 is a movable piece, 2
4 is a spring, 25, 27, 28 are contacts, 26
is a dummy terminal, and 29 is a push piece.

Claims (1)

[Scope of utility model registration request] A pair of support columns are erected opposite the bottom of the box,
A push piece in which the lower end of a light-emitting diode terminal embedded in a notch in a support pillar projects outside the bottom plate, a light-emitting part of the light-emitting diode is provided at the upper end of the terminal, and the light-emitting part is provided in a box so that it can move forward and backward. The upper end of the common terminal provided on the bottom plate is bent into an L-shape, and the side part of the common terminal is shaped like a gate so as to contact the opposing surface of each support column and the bottom plate. A contact is provided at the tip of a movable piece whose rear end is locked in a notch provided on the front end surface of the support piece, and the contact is provided on the bottom plate of a normally open terminal. The tip of the contact or the common terminal can be brought into contact with either one of the stoppers provided, the movable piece and the common terminal are connected by a spring, and the operating protrusion provided on the push piece is brought into contact with the spring. let me touch you,
A push-button switch characterized in that the movable piece swings around a notch by the vertical movement of an operating protrusion to perform switching.