JP3211102B2 - Illuminated pushbutton switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illuminated push-button switch, and more particularly to a push-button switch in which a reversing spring is reversed by the operation of the push button.
The present invention relates to an illuminated pushbutton switch that opens and closes contacts between external terminals and emits light in accordance with the opening and closing operation to display an operation.

[0002]

2. Description of the Related Art A conventional push button switch of this type is disclosed in Japanese Utility Model Laid-Open No. 60-44328. As shown in FIGS. 6 to 8, the disclosed technology includes a switch body 46 having a plurality of external terminals 30 and 31 and having an upper surface covered with a cover 32, and a contact portion 3 of the external terminal 31.
Dome-shaped reversing spring 33 installed between 1a
A push button 34 mounted on the cover 32 so as to be movable up and down and pressing and reversing the center of the reversing spring 33; and a light emitting diode 35 for illuminating the push button 34 from inside.
An illuminated push button switch for short-circuiting between the contact portions 30a and 31a of the inner and outer terminals 30 and 31 by reversing the central portion of the reversing spring 33. At the same time, the inner cylinder 39 held at the connecting portion is formed on the outer cylinder 37, and the light emitting diode 35 is formed.
The terminal 40 is fitted into the groove 41 formed on the back surface of the substrate 36, the light emitting diode 35 itself faces upward from the inner cylinder 39, and the inner cylinder 39 surrounding the light emitting diode 35 is formed into a tapered reflecting surface 42. The push button 34 is vertically movably fitted to the outer cylinder 37, and the push button 34 is integrally coupled to the plunger 43. .

[0003]

However, in the above-mentioned conventional illuminated push button switch, the light emitting diode 35 is located above the plunger 43, and the reversing spring 33 is located below the plunger 43. From that
There has been a problem that the height of the switch itself becomes large and the switch cannot be made compact.

The present invention has been made in view of the above-mentioned problems, and its object is to reduce the height of the switch itself, to make the switch compact, and to remove material. An object of the present invention is to provide an illuminated push-button switch which is easy and inverts over a long span, so that stress can be dispersed.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a switch body having a plurality of external terminals and having a top surface covered with a cover, and a contact portion of the external terminals. A reversing spring, a push button for pressing and reversing the reversing spring, and a light emitting means for illuminating the push button from the inside are short-circuited between the contact points of the inner and outer terminals by reversing the reversing spring. An illuminated pushbutton switch,
A hole is provided in the center of the reversing spring, and of the reversing spring,
The spring body that connects the outer peripheral edge is formed on an arc surface that is upwardly convex, and the contact portions of the inner and outer terminals are arranged diagonally at positions corresponding to the outer peripheral edge of the reversing spring. A light emitting means is provided on the bottom, and the light emitting means illuminates the light from below the reversing spring.

[0006]

In the illuminated pushbutton switch according to the present invention, the height of the switch itself is reduced, and the switch can be compactly configured. In addition, the contact portions of the inner and outer terminals correspond to the outer peripheral edge of the reversing spring. The material is easy to remove because it is arranged diagonally at the position where the reversing spring is formed. In addition, since the reversing spring reverses over a long span, stress can be dispersed.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of an illuminated pushbutton switch according to an embodiment of the present invention, and FIG. 2 is a sectional view of the assembled state.

An illuminated push button switch according to the present invention includes a switch body 1, a light emitting diode (LED) 4, an inversion spring 9, a push button 11, and a cover 12, and the switch body 1 is provided outside a case 2. Terminal 3, internal terminal 5
And the light emitting diode terminal 6 is formed by insert molding. The contact 3a of the external terminal 3, the contact 5a of the internal terminal 5, and the contact 6a of the light emitting diode terminal 6 are exposed at the bottom of the concave portion 7 of the case 2. I have. That is, the contact portion 3a of the external terminal 3 is located outside, the contact portion 5a of the internal terminal 5 is located inside, and the light emitting diode terminal 6 is located inside the contact portion 5a of the internal terminal 5, respectively. A locking projection 8 is formed on the outer surface of the case 2 so as to protrude.

A light emitting diode 4 is arranged at the center of the recess 7 of the case 2, and the light emitting diode 4 is connected to a contact portion 6 a of a light emitting diode terminal 6.

The reversing spring 9 is formed by forming a conductive thin plate into a dome shape, and has a circular hole 10 formed in the center thereof. The reversing spring 9 is housed so as to protrude into the recess 7 of the case 2, and the outer peripheral edge 9 a of the reversing spring 9 is in contact with the contact portion 3 a of the external terminal 3,
The light emitting diode 4 is located in the hole 10, and the light emitting diode 4 penetrates the hole 10 and protrudes above the hole 10. This reversing spring 9 is a push button 1 described below.
The internal terminal 5 is pressed at 1 and inverted downward.
And the contact portions 5a of the internal and external terminals 5 and 3
a, 3a are short-circuited.

The push button 11 is made of a translucent resin.
A concave portion 13 is formed on the lower surface, and a reversing spring pressing projection 14 is formed on the periphery of the concave portion 13. The push button 11 is disposed in the concave portion 7 of the case 2, the reversing spring pressing protrusion 14 is in contact with the center of the upper surface of the reversing spring 9, and the light emitting diode 4
The top of is located.

The cover 12 has a circular button portion projecting hole 15 at the center thereof. Both ends of the cover 12 are bent, and a locking hole 17 is formed in the bent portion 16. is there. The cover 12 is located above the concave portion 7 of the case 2, and a locking projection 8 formed on the case 2 is locked in a locking hole 17 of the bent portion 16. It is fixed to. In this case, cover 1
Reference numeral 2 denotes a shoulder 11 a of the push button 11, and a button 11 b of the push button 11 projects from a button projecting hole 15 of the cover 12.

In the above configuration, the reversing spring 9 always keeps the upwardly curved state, the push button 11 returns upward,
Between the contact portions 5a, 3a of the internal and external terminals 5, 3,
The light emitting diode 4 is off.

When the push button 11 is pressed, the reversing spring 9 is pressed.
Is turned downward and contacts the contact portion 5a of the internal terminal 5,
The contact portions 5a and 3a of the internal and external terminals 5 and 3 are short-circuited, and the light emitting diode 4 is turned on to emit light.

The light of the light emitting diode 4 irradiates the push button 11, and this light is reflected by the reflecting surface 13 a of the concave surface 13 of the push button 11 and irradiates the ceiling 13 b side of the concave 13. Therefore, the upper surface of the push button 11 emits light evenly with a sufficient amount of light.

The reversing spring 9 has a circular hole 10 in the center thereof, in which the light emitting diode 4 is located. , The height of the switch itself is reduced and the switch is compact.

3 to 5 show another embodiment of the present invention. The difference between the illuminated push button switch according to this embodiment and the one according to the above-described embodiment is that the inner and outer terminals 5
3, the arrangement of the contact portions 5a and 3a, the shape of the reversing spring 9, and the shape of the reversing spring pressing projection 14 of the push button 11.

That is, the contact portions 5 of the internal and external terminals 5 and 3
The arrangement of a and 3a is performed by arranging the contact portions 3a of the external terminal 3 on the left and right at positions corresponding to the outer peripheral edge 9a of the reversing spring 9, and the contact portions 5a of the internal terminal 5 on the front and rear, respectively. The height H of the contact 3a of the external terminal 3 is equal to the height of the contact 5 of the internal terminal 5.
The height a is higher than the height h. Further, the reversing spring 9 has a hole 10 at the center thereof, and furthermore, of the reversing spring 9, a spring main body 9c connecting the outer peripheral edges 9b and 9a is formed in an arcuate surface which is upwardly convex. The push button 11 has a concave portion 13 at the bottom thereof. However, the reverse spring pressing protrusion 14 formed on the peripheral portion of the concave portion 13 is not continuous, and is provided at a predetermined interval in the circumferential direction. It is formed independently at a plurality of locations.

When the reversing spring 9 is accommodated in the recess 7 of the case 2, the outer peripheral edge 9
a is supported in contact with the contact portion 3a of the external terminal 3,
The reversing spring pressing projection 14 of the push button 11 is in contact with the top of the spring body 9 c of the reversing spring 9. The position where the reversing spring pressing projection 14 contacts the spring main body 9c of the reversing spring 9, that is, the point of application of the force F is above the contact portion 5a of the internal terminal 5.

The light emitting diode 4 is located in the hole 10 of the reversing spring.
0 and project above it.

In the above construction, the reversing spring 9 keeps the spring body 9c in the upwardly curved state at all times, the push button 11 returns upward, and the contact portions 5 of the internal and external terminals 5,3.
The light emitting diode 4 is turned off while the space between a and 3a is open.

When the push button 11 is pressed, the spring body 9c reverses downward from the portion of the spring body 9c at the point of action A of the force F where the reversing spring pressing projection 14 contacts, and the force F The point of action a is the contact portion 5a of the internal terminal 5.
, The contact portions 5a and 3a of the internal and external terminals 5 and 3 are short-circuited, and the light emitting diode 4 is turned on to emit light.

The light of the light emitting diode 4 irradiates the push button 11, and this light is reflected by the reflection surface 13 a of the concave surface 13 of the push button 11 to irradiate the ceiling 13 b side of the concave 13. Therefore, the upper surface of the push button 11 emits light evenly with a sufficient amount of light.

The reversing spring 9 has a circular hole 10 at the center thereof, and the light emitting diode 4 is located in the hole 10. , The height of the switch itself is reduced and the switch is compact.

The contact portions 5a of the inner and outer terminals 5, 3
Since the arrangement of the contact 3a is performed by disposing the contact 3a of the external terminal 3 on the left and right at the position corresponding to the outer peripheral edge 9a of the reversing spring 9, and the contact 5a of the internal terminal 5 on the front and rear,
The material can be easily removed, and since the reversing spring 9 reverses over a long span, the stress can be dispersed.

[0026]

As described above, according to the present invention, the hole is provided at the center of the reversing spring, the light emitting means is provided at the bottom of the switch body, and the light emitting means illuminates from below the reversing spring. , The height of the switch itself becomes smaller,
It can be made compact.

Further, according to the present invention, a hole is provided in the center portion of the reversing spring, and a spring body portion connecting the outer peripheral edge portion of the reversing spring is formed on an arcuate surface which is upwardly convex. The contact portions are arranged diagonally at positions corresponding to the outer peripheral edge of the reversing spring, and light emitting means is provided at the bottom of the switch body, and the light emitting means illuminates from below the reversing spring. The height of the spring is small and it can be made compact. Also, since the contact points of the inner and outer terminals are arranged diagonally at positions corresponding to the outer peripheral edge of the reversing spring, material removal is easy. In addition, since the reversing spring reverses over a long span, stress can be dispersed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an illuminated pushbutton switch according to an embodiment of the present invention.

FIG. 2 is a sectional view of the illuminated pushbutton switch in an assembled state.

FIG. 3 is an exploded perspective view of another embodiment of the illuminated pushbutton switch according to the present invention.

FIG. 4 is a sectional view of the illuminated pushbutton switch in an assembled state.

FIG. 5 is a perspective view showing a point of action of a force acting on a reversing spring.

FIG. 6 is an exploded perspective view of a conventional illuminated push button switch.

FIG. 7 is a perspective view of the same assembled state.

FIG. 8 is a sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switch body 3 Internal terminal 3a Contact part 4 Light emitting diode (light emitting means) 5 External terminal 5a Contact part 9 Inverting spring 10 Hole 11 Push button

Claims (1)

(57) [Claims] 1. A of the plurality, a switch body is covered by the cover and the upper surface having an external terminal, and a reversing spring disposed in Tsu straddled <br/> between contact portions of the external terminals, the reversing spring An illuminated push-button switch comprising: a push button for pressing and reversing; and a light emitting means for illuminating the push button from the inside, wherein the illuminated push button switch short-circuits between the inner and outer contact points by reversing the reversing spring. part of the holes provided in Rutotomoni, among reversing spring, the outer peripheral edge
Forming the spring body that connects the parts on an arc surface that is convex upward
And, among the contact portions of the external terminals, corresponding to the outer peripheral edge portion of the reversing spring
An illuminated push button switch characterized in that a light emitting means is provided at the bottom of the switch body and illuminated from below the reversing spring by the light emitting means.