JPS583234Y2 - push button switch - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a non-locking push button switch for opening and closing an electric circuit.

For example, a push-button switch for calling an extension on a push-button telephone has one push button on the operation panel 101, as shown in FIG.
A plurality of contact springs 103 and 103' are provided under each push button 102 via an insulating plate 104.
3, 103' A contact spring assembly insulated between each other and by the mounting part 105 and the tightening plate 106 and fixed with screws or rivets,
The contact springs 103 and 10 are configured to be fixed to the main body or the interlocking electric key, and when the push button 102 is pressed down, the contact springs 103 and 10 are
3' is configured to open and close.

As described above, there is a drawback that a large number of parts are required, and a large number of man-hours are required for assembling these parts, adjusting the contact spacing, contact spring pressure, etc.

In order to eliminate these drawbacks, the present invention provides a push button switch that has a reduced number of parts, simplifies assembly, eliminates the need for various adjustments, and allows multiple switch groups to be assembled at once.

The present invention will be explained in detail below with reference to the drawings.

Fig. 2a shows an example of a push button switch to which the present invention is applied for individual calling of a key telephone. 42 and 43 are in contact with the frame 1 having a common contact portion, form a separate electric circuit therebetween, and serve as a switch for transmitting power for the ringing tone.

The assembly will be further explained in detail below.

A square hole 21 in a support (mounting plate) 2 made of an insulating material on the open side of a frame 1 made of a U-shaped electrical conductor
．． Nails 11, 12. are inserted into and fixed to 22, 23, and 24.
13 and 14 are provided and these are interconnected and fixed, and the frame 1 is provided with square holes 15 and 16 for the required number of individual calls, and the push buttons 3 made of an insulating material are connected in a required number of slides. The part 31 is tilted and passed together with the stopper 32, and then raised, the push button stopper 32 is assembled to the edge of the square hole 16 of the frame 1, and the connecting part 33 of the push button is cut off all at once.

Next, the individual contact springs 4 (hereinafter referred to as springs 4) are electrically conductive and made of spring material, and the required number are arranged in a chain (see second diagram).

The assembled push button 3 is connected to the push button passage portion 4 of the spring 4.
1, insert the slit part 44 of the spring contact part 42, 43 into the push button slide part 31, put the upper holding part 45 of the spring 4 into the upper notch groove 25 of the support 2, and bend the flexible part 46 of the spring 4. Then, the lower holding part 47 of the spring 4 is hooked into the lower notched groove 26 of the support 2, and the push button 3 is pushed up by the contact parts 42 and 43 to exert pressure on the push button and hold the spring 4.

If the folds 48 and 49 of the spring 4 are bent and removed all at once, a series of push button switches will be constructed.

The push button 3 is provided with bosses 34 and 35 for pressing the contact parts 42 and 43 of the taba4, and when the push button is operated, the contact points become 2 points, so even if one of them gets dust, etc., the other one will not touch. Reliability is reduced so that electrical switching can be performed by contacting the terminal.

In addition, the parts that hold this switch fit the holding parts 27 and 28 of the support 2 into the square holes of a holding plate (not shown) on the side, but they can be held by inserting them into slits and narrowing the open part.

As explained above, the push button switch of the present invention has a small number of parts (4 parts), can be assembled all at once, requires less man-hours for adjustment, can be manufactured at a very low cost, and has great effects.

[Brief explanation of the drawing]

FIG. 1A is a plan view showing an example of a conventional push button switch, FIG. 1B is a sectional view taken along planes 1 to 4 of FIG. 1A, and FIG. 2A is an embodiment of the present invention and its components. FIGS. 2B and C are side views and front views of the embodiment of FIG. 2A,
The second drawing is a perspective view showing the components used in the embodiment of the present invention. 1... Conductor plate, 11.12, 13.14...
...Claw, 15.16...Square hole, 2...
・Insulator mounting plate, 21.22, 23.24...
Square hole, 25°26... Notch groove, 27.28...
...Holding part, 3...Push button, 31...
...Slide part, 32...Stopper, 34
．． 35...Boss, 4...Spring, 42.
43...Contact part, 44...Slit l~
part, 45... Upper holding part, 46... Flexible part, 47... Lower holding part.

Claims (1)

[Scope of utility model registration request] Square holes 21, 22, 23, 24 arranged in one row and a required number of notch pairs 25 provided oppositely on both edges in the length direction.
．． 26, the necessary number of push buttons 3 having an elongated sliding part 31 mounted with a step and a stopper protrusion 32 provided at the tip of the sliding part, and inserting into the square hole. Multiple nails 11 to be fixed
．． 12, 13, and 14 at both ends, and is formed to have a U-shaped cross section, and further includes the slide portion in a portion parallel to the mounting plate and a portion adjacent thereto when it is mounted on the mounting plate. A conductive plate 1 having the necessary number of slit holes 15 and 16 for accommodating and limiting the sliding movement of the push button by the stopper protrusion, and coupled to the end of the sliding portion of the push button inserted into the slit. contact portions 42 and 43 provided at one end to act to separate the step from the conductor plate;
and the necessary number of contact springs 4 which are inserted into the pair of notches and fixed to the mounting plate in a state of constant insulation from the conductor plate, and the contact portion of the contact spring 4 is connected to the contact portion of the contact spring by operating the push button. A push button switch configured to make mutual contact with the conductive plate.