JPH05182560A - Illuminated pushbutton switch - Google Patents

Abstract

PURPOSE:To reduce the height of a switch itself to compact the switch by providing a hole at the center portion of a reversal spring, and providing a light emitting device in the bottom portion of a switch main body, and using the light emitting device to illuminate the switch from below the reversal spring. CONSTITUTION:A spring main body portion 9c is reversed downward from the point of application of a force F with which the reversal spring pressing protrusion 14 of the spring main body portion 9c makes contact and the point of application of the force F makes contact with the contact portion 5a of an inner terminal 5 so that the contact portions 5a, 3a of inner and outer terminals 5, 3 are shortcircuited and a light-emitting diode 4 is lighted and emits light. The light of the diode 4 illuminates a pushbutton 11 and is reflected at the reflecting surface 13a of the peripheral face of the recessed portion 13 of the pushbutton 11 and illuminates the ceiling portion 13b side of the recessed portion 13. Therefore, the upper surface portion of the pushbutton 11 emits light uniformly and in a sufficient amount. The reversal spring 9 has a circular hole 10 at its center port and the diode 4 is located within the hole 10 and the diode 4 is passed through the hole 10 and projected upward so that the height of the switch 4 itself is reduced.

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 in particular, when the reversing spring is reversed by the operation of the push button,
The present invention relates to an illuminated push button switch that opens and closes the contacts of external terminals and emits light according to the opening / 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. This disclosed technique includes a switch body 46 having a plurality of external terminals 30 and 31 and an upper surface covered with a cover 32 as shown in FIGS. 6 to 8, and a contact portion 3 of the external terminal 31.
A dome-shaped inversion spring 33 installed across 1a
A push button 34 which is mounted on the cover 32 so as to be vertically movable and presses and inverts the central portion of the reversing spring 33; and a light emitting diode 35 for illuminating the push button 34 from the inside.
Is a push-button switch of the illumination type that has a center portion of the reversing spring 33 and short-circuits the contact portions 30a and 31a of the external terminals 30 and 31, and the cover 32 has an outer cylinder 37 attached to the substrate portion 36. At the same time as forming the outer cylinder 37, the inner cylinder 39 held by the connecting portion is formed on the outer cylinder 37 to form the light emitting diode 35.
Fits the terminal 40 into the groove 41 formed on the back surface of the substrate portion 36, exposes the light emitting diode 35 itself upward from the inner cylinder 39, and makes the inner cylinder 39 surrounding the light emitting diode 35 into a tapered reflection surface 42. The light leakage from the light emitting diode 35 in the lateral direction can be reflected upward, and the push button 34 is vertically movably fitted to the outer cylinder 37, and the push button 34 is integrally coupled with the plunger 43. ..

[0003]

However, in the above-mentioned conventional illuminated pushbutton 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 is a problem that the height of the switch itself becomes large and it cannot be made compact.

The present invention has been made in view of the above problems, and the first object thereof is to make the switch itself small in height and to provide an illuminated push button which can be compactly constructed. To provide a switch.

A second object of the present invention is that the height of the switch itself is small, the switch can be constructed compactly, the material can be easily taken, and the reversing spring reverses over a long span. In order to achieve this, it is an object of the present invention to provide an illuminated pushbutton switch that enables stress distribution.

[0006]

In order to achieve the above first object, the present invention provides a switch body having a plurality of internal terminals and an upper surface covered with a cover, and contacts of the external terminals. A reversing spring installed across the parts, a push button for pressing and reversing the reversing spring, and a light emitting means for illuminating the push button from the inside. An illuminated push-button switch for short-circuiting the switch spring, wherein a hole is provided in the center of the reversing spring and a light emitting means is provided at the bottom of the switch body, and the light emitting means is adapted to illuminate from below the reversing spring. And

In order to achieve the above-mentioned second object, the present invention straddles between a switch body having a plurality of inner and outer terminals and an upper surface covered with a cover, and a contact portion of the outer terminals. Equipped with a reversing spring installed, a push button for pressing and reversing the reversing spring, and a light emitting means for illuminating the push button from the inside. In the push button switch, a hole is provided in the center of the reversing spring, and the spring main body that connects the inner and outer peripheral edges of the reversing spring is formed in an arc surface that is convex upward.
The contact parts of the inner and outer terminals are diagonally arranged at the positions corresponding to the outer peripheral edge of the reversing spring, and the light emitting means is provided at the bottom of the switch body so that the light emitting means illuminates from below the reversing spring. It is characterized by having done.

[0008]

In the illuminated push button switch according to the first aspect of the present invention, the height of the switch itself is small, and the switch can be made compact.

In the illuminated push-button switch according to the second aspect of the invention, the height of the switch itself is small, and the switch can be made compact, and the contact portions of the inner and outer terminals are the outer peripheral edge portion of the reversing spring. Since it is diagonally arranged at a position corresponding to, the material can be easily taken, and the reversing spring reverses over a long span, so that the stress can be dispersed.

[0010]

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

The illuminated push-button switch according to the present invention comprises a switch body 1, a light emitting diode (LED) 4, a reversing spring 9, a push button 11 and a cover 12. The switch body 1 is external to a case 2. Terminal 3, Internal terminal 5
The light emitting diode terminal 6 is insert-molded, and the contact portion 3a of the external terminal 3, the contact portion 5a of the internal terminal 5 and the contact portion 6a of the light emitting diode terminal 6 are exposed at the bottom of the recess 7 of the case 2. There is. 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. A locking protrusion 8 is formed on the outer surface of the case 2.

A light emitting diode 4 is arranged in the center of the recess 7 of the case 2, and the light emitting diode 4 is connected to a contact portion 6a 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 in the recess 7 of the case 2 so as to lie down, and the outer peripheral edge portion 9a of the reversing spring 9 is in contact with the contact portion 3a 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 projects above the hole 10. This reversing spring 9 is a push button 1 described below.
Internal terminal 5 is pressed by 1 and turned downward
In contact with the contact portion 5a of the inner and outer terminals 5 and 3
A and 3a are short-circuited.

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

The cover 12 has a circular button portion projecting hole 15 in the center thereof, and 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 the locking projections 8 formed on the case 2 are locked in the locking holes 17 of the bent portion 16, so that the cover 12 covers the case 2. It is fixed to. In this case, cover 1
Reference numeral 2 holds the shoulder portion 11a of the push button 11, and the button portion 11b of the push button 11 projects from the button portion projecting hole 15 of the cover 12.

In the above structure, the reversing spring 9 always keeps the upper bent state, and the push button 11 returns upward,
The contact portions 5a, 3a of the inner and outer terminals 5, 3 are released,
The light emitting diode 4 is off.

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

The light of the light emitting diode 4 illuminates the push button 11, and this light is reflected by the reflecting surface 13a of the peripheral surface of the recess 13 of the push button 11 and illuminates the ceiling 13b side of the recess 13. Therefore, the upper surface of the push button 11 uniformly emits a sufficient amount of light.

The reversing spring 9 has a circular hole 10 in the center thereof, and the light emitting diode 4 is located in the hole 10, and the light emitting diode 4 penetrates the hole 10 and is located above the hole 10. Since the switch protrudes, the height of the switch itself is small, and the switch is compact.

3 to 5 show another embodiment of the present invention. The illuminated push-button switch according to this embodiment differs from that of the above-described embodiment in that the inner and outer terminals 5 and
3, the arrangement of the contact points 5a, 3a, the shape of the reversing spring 9, and the shape of the reversing spring pressing protrusion 14 of the push button 11.

That is, the contact portion 5 of the inner and outer terminals 5 and 3
The arrangement of a and 3a is performed by arranging the contact portions 3a of the external terminals 3 on the left and right and the contact portions 5a of the internal terminals 5 on the front and rear at positions corresponding to the outer peripheral edge portion 9a of the reversing spring 9. The height H of the contact portion 3a of the external terminal 3 is the contact portion 5 of the internal terminal 5
It is made higher than the height h of a. Further, the reversing spring 9 has a hole 10 in the center thereof, and further, a spring main body portion 9c connecting the outer peripheral edge portions 9b and 9a of the reversing spring 9 is formed in an arc surface which is convex upward. Further, the push button 11 has a recess 13 at the bottom thereof, but the reversal spring pressing protrusions 14 formed on the peripheral edge of the recess 13 are not continuous and are provided with a predetermined interval in the circumferential direction. It is formed independently at multiple locations.

When the reversing spring 9 is housed in the concave portion 7 of the case 2, the outer peripheral edge portion 9 of the reversing spring 9 is accommodated.
a is in contact with and supported by the contact portion 3a of the external terminal 3,
The reversing spring pressing protrusion 14 of the push button 11 is in contact with the top of the spring body 9c of the reversing spring 9. The position at which the reversing spring pressing protrusion 14 contacts the spring 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.

Further, the light emitting diode 4 is located in the hole 10 of the reversing spring, and the light emitting diode 4 has a hole 1
It passes through 0 and projects above it.

In the construction described above, the reversing spring 9 keeps the spring body 9c in the upwardly bent state at all times, the push button 11 returns upward, and the contact portions 5 of the inner and outer terminals 5 and 3 are held.
The light emitting diode 4 is extinguished while the space between a and 3a is released.

When the push button 11 is pressed, the spring body 9c is inverted downward from the portion of the spring body 9c at the point of action a of the force F with which the reversing spring pressing protrusion 14 contacts, and at the same time, the force F The contact point 5a of the internal terminal 5 is at the point of action a.
, And the contact portions 5a, 3a of the external terminals 5, 3 are short-circuited, and the light emitting diode 4 lights up to emit light.

The light from the light emitting diode 4 illuminates the push button 11, and this light is reflected by the reflection surface 13a of the peripheral surface of the recess 13 of the push button 11 and illuminates the ceiling 13b side of the recess 13. Therefore, the upper surface of the push button 11 uniformly emits a sufficient amount of light.

The reversing spring 9 has a circular hole 10 in the center thereof, and the light emitting diode 4 is located in the hole 10. The light emitting diode 4 penetrates the hole 10 and is located above the hole 10. Since the switch protrudes, the height of the switch itself is small, and the switch is compact.

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

[0029]

As described above, according to the present invention, a hole is provided in the center of the reversing spring and a 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,
Can be made compact.

Further, according to the present invention, a hole is provided in the central portion of the reversing spring, and the spring main body portion connecting the inner and outer peripheral edge portions of the reversing spring is formed in an arcuate surface which is convex upward so that the inner and outer terminals are connected. The contact portion is diagonally arranged at a position corresponding to the outer peripheral edge portion of the reversing spring, and the light emitting means is provided at the bottom of the switch main body so that the light emitting means illuminates from below the reversing spring. The height of the terminal is small and the structure can be made compact. Moreover, the contact parts of the inner and outer terminals are diagonally arranged at the positions corresponding to the outer peripheral edge of the reversing spring, which facilitates material removal. Moreover, since the reversing spring reverses over a long span, the stress can be dispersed.

[Brief description of drawings]

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

FIG. 2 is a sectional view of the illuminated push-button switch in an assembled state.

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

FIG. 4 is a sectional view of the illumination type push button switch in an assembled state.

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

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

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

FIG. 8 is a sectional view of the same.

[Explanation 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 reversing spring 10 hole 11 push button

Claims (2)

[Claims] 1. A switch main body having a plurality of external terminals and having an upper surface covered with a cover, a reversing spring installed across contact points of the external terminals, and the reversing spring being pressed and reversed. An illuminated pushbutton switch, comprising a pushbutton and a light emitting means for illuminating the pushbutton from the inside, wherein the reversal of the reversing spring causes a short circuit between the contact parts of the external terminals,
An illuminated push-button switch, characterized in that a hole is provided in the center of the reversing spring, a light emitting means is provided at the bottom of the switch body, and the light is emitted from below the reversing spring. 2. A switch main body having a plurality of external terminals and having an upper surface covered with a cover, a reversing spring installed across contact points of the external terminals, and the reversing spring being pressed and reversed. An illuminated pushbutton switch, comprising a pushbutton and a light emitting means for illuminating the pushbutton from the inside, wherein the reversal of the reversing spring causes a short circuit between the contact parts of the external terminals,
A hole is provided in the center of the reversing spring, and
The spring main body that connects the outer peripheral edge is formed in an arcuate surface that is convex upward, and the contact portions of the inner and outer terminals are diagonally arranged at the positions corresponding to the outer peripheral edge of the reversing spring. An illuminated push-button switch, characterized in that a light emitting means is provided on the bottom, and the light emitting means is used to illuminate from below the reversing spring.