JPH0741888U - Push button light emitting device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention aims to provide a push button light emitting device which is inexpensive and is easy for a user to check the light emission of a light emitting diode. [Structure] A push button provided in a button hole formed in a housing of the device so as to be movable in and out of the housing, and a switch provided inside the housing and opened and closed by the push button.
And a light-emitting body that lights up when this switch is closed,
The push button has a switch push body made of an opaque material that is closed by pushing down the operation portion of the switch, and a switch push body that is formed separately from the switch push body and has a plurality of inclined reflecting surfaces around the switch push body. A transparent body made of a transparent material that transmits light, the transparent body being fitted into a hole formed in the switch pressing body, and the transparent body and the switch pressing body having locking portions formed on each other. It is characterized by being locked and fixed to.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a push button light emitting device.

[0002]

[Prior art]

 An information device, for example, a digital telephone, is provided with a push button light emitting device which is a combination of a push button switch and a light emitting body. When the push button light emitting device closes the switch by pushing the push button, the light emitting body lights up in accordance with the operation of the switch to indicate that the input operation is performed.

Conventionally, there is a push-button light emitting device shown in FIG. In the figure, 1 is a push button, 2 is a switch, and 3 is a light emitting diode which is an example of a light emitting body. The push button 1 is formed by integrally molding a switch pressing body 4 made of an opaque synthetic resin and a translucent body 5 made of a transparent synthetic resin, and simultaneously heat-welding the molding. Then, the push button 1 is fitted into a button hole 7 formed in the housing 6 of the device so as to be movable in and out of the housing 6, and a collar formed on the switch pressing body 4 and the translucent body 5. 8 has been prevented from exiting. The switch pushing body 4 has a pushing portion 9 located inside the housing 6.

The switch 2 is provided with a contact (not shown) inside the case 10, and an operating portion 11 that opens and closes the contact at the upper part of the case 10. The operating portion 11 is constantly pushed up by a spring (not shown) to contact the contact. Is open. The switch 2 is arranged on a circuit board 12 provided inside the housing 6, a terminal 13 protruding from the case 10 is inserted into a hole 14 formed in the circuit board 12, and the terminal 13 is arranged on the circuit board 12. It is bonded by soldering to the wiring (not shown) formed on the. The push portion 9 of the switch push body 4 of the push button 1 is brought into contact with the upper surface of the operating portion 11, and the entire push button 1 is pushed up by the operating portion 11 via the switch push body 4.

The light emitting diode 3 is, for example, a combination of one displaying red and one displaying blue. The light emitting diode 3 is inserted into a hole 15 having an open upper surface, which is formed in the case 10 of the switch 2 below the translucent body 4 of the push button 1. The light emitting diode 3 has a terminal 16, the terminal 16 is inserted into a hole 17 formed in the circuit board 12, and the terminal 16 is connected to a wiring (not shown) formed on the circuit board 12 by soldering. There is. The light emitting diode 3 is connected to a circuit which is closed by closing the contact of the switch 2.

As shown in FIG. 13 (c), the translucent body 5 of the push button 1 is formed with an inclined surface 18 on the rear side with respect to the user side, and the light of the light emitting diode 3 is inclined to the inclined surface 18. The user can check the illumination of the translucent body 5 even from a distant position by reflecting the light.

A case where the push button light emitting device configured as described above is operated for input will be described. When the operator uses the telephone to make a call, when the switch pushing body 4 is pushed down with a finger, the pushing portion 9 is integrally lowered to push down the operating portion of the switch 2 against the force of the spring. And close the contact of switch 2. Then, the circuit connecting the contact point of the switch 2 and the light emitting diode 3 is closed, and the blue part of the light emitting diode 3 lights up and illuminates. The light emitted from the light emitting diode 3 passes through the light transmitting body 5 of the push button 1. As a result, blue is displayed. On the other hand, when the telephone is being used by another person, the red part of the light emitting diode 3 is lit and displayed.

[0008]

[Problems to be solved by the device]

 However, in such a conventional device, the push button 1 is formed by injecting the translucent body 5 made of a transparent resin and the switch push body 4 made of an opaque resin into the same mold with the respective resins. At the same time, since both of them are welded and manufactured at the same time as this molding, the cost of the mold is high and the manufacturing cost is high because the manufacturing process is troublesome.

Further, in order to show the light of the light emitting diode 2 to a user in an oblique direction, a boundary reflection surface composed of the translucent body 14 and a space is required, and the switch pressing body 5 made of resin and the translucent body are transparent. The interface where the light body 6 is welded cannot be used as a reflection surface, and the visibility of the light emission of the light emitting diode 3 from the direction facing the interface is reduced. As described above, in the conventional example, the position where the inclined surface for showing the light of the light emitting diode 3 to the user is formed in the translucent body 4 of the push button 1 is limited.

Due to the appearance problem of the push button 1, the inclined surface of the translucent body 4 is usually only one surface opposite to the direction in which the user is located. It becomes even more difficult for the user to check the light of the light emitting diode 3 when the machine is facing away from the user for some reason. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a push button light emitting device which is inexpensive and is easy for the user to confirm the light emission of the light emitting body.

[0011]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a push button light emitting device of the present invention comprises a push button provided in a button hole formed in a housing of a device so as to be movable in and out of the housing. The switch includes an internal switch that is opened and closed by the push button, and a light-emitting body that lights up when the switch is closed. The push button is a switch made of an opaque material that is closed by pushing down the operating portion of the switch. The push body and the switch push body are formed separately from each other and are made of a transparent material which has a plurality of inclined surfaces on the peripheral surface for reflecting the light emitted by the light emitting body and transmits the light emitted by the light emitting body. A light-transmitting body, a holding hole is formed in the switch pressing body, the light-transmitting body is fitted into the holding hole, and an inner surface of the switch pressing body and an outer surface of the light-transmitting body are respectively formed. The locking part is formed and Wherein the engaging portion Luo locked to each other the translucent body is characterized in that it is fixed to the body push the switch.

[0012]

[Action]

 The switch pusher made of opaque resin and the translucent body made of transparent resin are separately molded separately for the push button, and the switch pusher and the translucent body are joined by mechanical means. The body and the translucent body can be manufactured at low cost. The mechanical coupling means is one in which the translucent body is fitted into the holding hole formed in the switch pushing body, and the locking portions formed respectively in the translucent body and the switch pushing body are mutually locked and fixed. Therefore, the switch pressing body and the translucent body can be easily and surely coupled. From these, the push button can be manufactured at low cost.

Further, since the translucent body and the switch pressing body are not welded, but mechanically and integrally coupled, basically the entire peripheral surface of the translucent body can be used as a reflecting surface. Therefore, by forming a plurality of inclined surfaces as the reflection surface, the user can easily confirm the light emission of the light emitting diode.

[0014]

【Example】

 A first embodiment of the present invention will be described with reference to the drawings. This embodiment is intended for a push button light emitting device provided on a digital telephone for inputting information. 7 and 8 show a digital telephone. In FIG. 7, reference numeral 51 is a main body case, 52 is a main body cover that is assembled with the upper portion of the main body case 51, and the main body case 51 and the main body cover 52 are combined. It constitutes the housing of a digital telephone. As shown in FIGS. 7 and 8, the main body cover 51 is formed with a button hole 53 through which a push button to be described later is inserted, and the button hole 53 has a tubular portion 54 formed inside the main body cover 52. . It is provided inside the housing of the push button light emitting device of the present invention.

Next, the push button light emitting device will be described with reference to FIGS. 1 to 6. In FIG. 1, 21 is a push button, 22 is a switch, and 23 is a light emitting diode which is an example of a light emitting body. The push button 21 is configured by integrally combining a switch pushing body 24 made of an opaque synthetic resin and a light transmitting body 25 made of a transparent synthetic resin and formed separately from the switch pushing body 24. A button hole 53 formed in the housing is fitted in the housing so as to be movable in the withdrawal direction.

That is, the switch pushing body 24 is fitted into the button hole 53 formed in the main body cover 52 of the telephone, the main body portion 26 that is movably fitted in the vertical direction (withdrawal direction), and the inside of the main body cover 52. The main body 26 is located at the bottom of the body portion 26 and is integrally formed continuously with the lower portion of the body portion 26, and the bottom portion of the tubular portion 54 of the button hole 53 formed in the body cover 52 is locked. It has a step portion 28 for preventing the material from coming out from 53.

In the main body portion 26, a hole 29 that vertically penetrates is formed in a portion located directly above a light emitting diode 23 described later. The hole 29 has a rectangular planar shape. As shown in FIG. 5, a pair of short side portions facing each other in the upper part of the inside thereof are formed with a locking step portion 30 and face each other as shown in FIG. An inclined surface 31 is formed on the pair of long sides so as to spread from the upper opening to the lower opening.

The translucent body 25 is a rectangular parallelepiped that is inserted into the hole 29 of the main body portion 26, and a pair of short side portions facing each other in the upper portion are formed with inclined surfaces 25 a to facilitate insertion into the hole 29. In addition, a locking step portion 32 that locks with the locking step portion 30 is formed, and the pair of opposing long side portions spreads from the upper surface to the lower surface in combination with the inclined surface 31 of the hole 29. An inclined surface 33 that is inclined to is formed.

Then, the translucent body 25 is forcibly inserted into the hole 29 from below, and the locking step portion 32 thereof is locked to the locking step portion 30 of the hole 29 to be supported and fixed in the hole 29. ing. A step portion 34 is formed on the lower surface of the translucent body 25, and the step portion 34 is locked to a step portion 29 a formed at the lower surface opening of the hole 29 so that the translucent body 25 is opened from the upper surface opening of the hole 29. It prevents you from getting out.

The inclined surface 33 of the translucent body 25 is combined with the inclined surface 31 of the hole 29. Due to the presence of the two inclined surfaces 33 of the translucent body 25, the light emitted from the light emitting diode 23 arranged on the lower side is reflected by the two inclined surfaces 33, and the Light emission from the translucent body 25 can be confirmed from two directions facing the inclined surface 33. Therefore, the user can confirm the light emission even if the user looks at the push button 21 at a low position.

The switch 22 is provided with a case 35 having a contact (not shown) therein, and an operating portion 36 for opening and closing the contact at the upper part of the case 35. The operating portion 36 is constantly pushed up by a spring (not shown) to The contact is open. The switch 22 is arranged on a circuit board 37 provided inside the main body cover 52, a terminal 38 protruding from the case 35 is inserted into a hole 39 formed in the circuit board 37, and the terminal 38 is connected to the circuit board. It is connected to the wiring (not shown) formed in 37 by soldering. The pushing portion 27 of the switch pushing body 24 is brought into contact with the upper surface of the operating portion 36, and the entire pushing button 21 is pushed up by the operating portion 36 via the switch pushing body 24. Further, the case 35 has a light emitting diode mounting portion 40 located directly below the hole 29 of the switch pushing body 24, and the mounting portion 40 is formed with a mounting hole 41 that penetrates vertically.

The light emitting diode 23 is, for example, a combination of one that displays red and one that displays blue. Then, the case 35 is inserted into the mounting hole 41 of the light emitting diode mounting portion 40 from above. A terminal 42 provided on the light emitting diode 23 is inserted into a hole 43 formed in the circuit board 37, and the terminal 42 is connected to a wiring (not shown) formed on the circuit board 37 by soldering. The light emitting diode 23 is connected to a circuit that is closed by closing the contact of the switch 22.

In the push-button light emitting device configured as described above, when the user uses the telephone by himself, the switch pusher 24 of the push button 21 is pushed down with a finger. Then, the main body portion 26 of the switch pressing body 24 descends along the button hole 53 and the cylinder portion 54 of the main body cover 52, and the pushing portion 27 also integrally descends. Further, the through hole body 25 held by the main body portion 26 is also lowered integrally. The pushing portion 27 descends to push down the operating portion 36 of the switch 22 against the force of the spring and close the contact of the switch 22. Then, the circuit connecting the switch 22 and the light emitting diode 23 is closed, and the blue part of the light emitting diode 23 lights up to illuminate. The light emitted from the light emitting diode 23 enters the inside of the translucent body 25 provided in the main body portion 26 of the switch pusher 24 from the lower side, transmits from the lower side to the upper side, and exits from the upper side. At this time, a part of the light passing through the translucent body 25 is reflected by each of the pair of inclined surfaces 33 formed facing the upper part of the translucent body 25, and the upper surface is oriented in a direction corresponding to the reflected angle. To the outside. As a result, the transparent body 25 displays blue. The user visually recognizes the display of the through hole 25.

When another person is using the telephone, the red portion of the light emitting diode 23 is lit and displayed. Here, the light emitted from the light-transmitting body 25 can be confirmed from two directions facing the two inclined surfaces 33, which are reflection surfaces that reflect the light emitted from the light-emitting diode 23 toward the outside in the light-transmitting body 25. . Therefore, the user can check the emitted light even when the user looks at the push button 21 at a low position. In addition, in this embodiment, two inclined surfaces 33 which are reflecting surfaces are formed on the light transmitting body 25, but the present invention is not limited to this, and three or four inclined surfaces can be formed.

In this embodiment, as shown in FIG. 4, a switch pusher 24 made of an opaque resin and a translucent body 25 made of a transparent resin in the push button 21 are separately and independently molded, and these switch pushers are pressed. Since the body 24 and the translucent body 25 are coupled by mechanical means, the switch pressing body 24 and the translucent body 25 can be manufactured at low cost. The mechanical coupling means fits the translucent body 5 into the hole 29 formed in the switch pressing body 25, and mutually locks the translucent body 25 and the locking step portions 30 and 32 formed in the switch pressing body 24. The switch pressing body 24 and the translucent body 25 can be easily and surely coupled to each other. Therefore, the push button 21 can be manufactured at low cost.

Further, since the push button 21 does not weld the translucent body 25 and the switch pushing body 24, but mechanically and integrally connects them, basically the peripheral surface of the translucent body 25 is The whole can be used as a reflective surface. Therefore, a plurality of inclined surfaces are formed on the peripheral surface of the light transmissive body 25 as reflection surfaces, so that the user can easily confirm the light emission of the light emitting diode over a wide range.

As shown in FIGS. 1 and 2, in this embodiment, the head portion of the light emitting diode 23 projects upward from the mounting hole 41 formed in the switch mounting portion 40 of the case 35 of the switch 22. Therefore, a protrusion 44 that collides with the switch mounting portion 40 of the case 35 is formed below the switch pushing body 24 of the push button 21 so as to project downward. As a result, when the switch push body 24 of the normal push button 21 is pushed, the push portion 27 sufficiently secures a stroke for operating the operating portion 36 of the switch 22, and then, for example, the through hole body mounting portion of the switch push body 24. When is pressed from the upper side to the lower side, the switch pressing body 24 and the light transmitting body 25 descend as shown in FIG. 2, and the lower end of the light transmitting body 25 also collides with the upper surface of the light emitting diode 23. Since the protrusion 44 collides with the upper surface of the switch mounting portion 40 of the switch case 35, it is possible to avoid damage to the translucent body 25 and the light emitting diode 23 due to the collision of both.

It should be noted that the distance between the light-transmitting body 25 and the light-emitting diode 23 should be increased to avoid the collision between the light-transmitting body 25 and the light-emitting diode 23 when the switch pushing body 24 of the push button 21 is pushed down by a predetermined stroke. However, in this case, the light amount of the light that the light emitting diode 23 illuminates the translucent body 25 is insufficient.

Further, in the present embodiment, when the push button light emitting device is mounted on the main body as an interoffice button of a telephone as shown in FIGS. 7 and 8, there are many narrow push button light emitting devices having the same configuration. It may be provided at intervals. In this case, the light emitted by the light emitting diode 23 provided in each push button light emitting device leaks and enters the inside of the light transmitting body 25 provided in the adjacent push button light emitting device to transmit the light of the push button light emitting device. The hole 25 may be mistakenly recognized as emitting light.

Therefore, as shown in FIG. 9, a shielding portion 46 is provided below a part of the side surface of the switch pushing body 24 of the push button 21, and the shielding portion 46 allows the light of the light emitting diode 23 of its own device to be adjacent to the device. You can prevent it from leaking.

Further, FIGS. 10 to 12 show a case where the translucent body is inserted into the holding hole of the switch pressing body from above. 10 to 12, the same parts as those in FIGS. 1 to 4 are denoted by the same reference numerals. A hole 46 is formed in the switch pressing body 24 of the push button 21, and an inclined surface 47a is formed in a lower portion of the through hole body 47 so that the through hole body 47 can be easily inserted from above. A locking step portion 48 is formed on the upper portion of the hole 46, and a locking step portion 49 is formed on the lower portion. In addition, a step portion 50 is formed on the upper portion of the through hole body 47 so as to be locked to the locking step portion 48 on the upper side of the hole 46 and prevent the through hole body 47 from falling out of the hole 46. At the lower part of the through-hole body 47, a step portion 51 is formed which is locked to the lower locking step portion 49 of the hole 46 and prevents the through-hole body 47 from coming out of the hole 46 to the upper side. It should be noted that the present invention is not limited to the above-described embodiments, and can be implemented with various modifications. The light-emitting body is not limited to the light-emitting diode, and other objects can be applied.

[0032]

[Effect of device]

 As described above, according to the push button light emitting device of the present invention, the switch push body made of the opaque resin of the push button and the translucent body made of the transparent resin are separately and independently molded. Since the switch and the translucent body are connected by mechanical means, the switch pressing body and the translucent body can be manufactured at low cost. The mechanical coupling means fits the light-transmitting body into the hole formed in the switch pressing body, and locks the light-transmitting body and the switch pressing body by locking the respective locking portions. Therefore, the switch pressing body and the translucent body can be easily and surely coupled. Therefore, the push button can be manufactured at low cost.

Further, since the translucent body and the switch pressing body are not welded, but mechanically and integrally coupled, basically the entire surface of the translucent body can be used as a reflecting surface. By forming a plurality of inclined reflecting surfaces, the user can easily confirm the light emission of the light emitting diode.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of a push button light emitting device of the present invention.

FIG. 2 is a partially cutaway front view showing the push button light emitting device of the embodiment.

FIG. 3 is a perspective view showing a translucent body and a switch pushing body used in the push button light emitting device of the embodiment.

FIG. 4 is an enlarged bottom view showing the translucent body and the switch pressing body.

5 is a cross-sectional view taken along the line AA of FIG.

6 is a sectional view taken along the line BB of FIG.

FIG. 7A is a front view showing a telephone equipped with the push button light emitting device of the embodiment. (B) is the same side view.

FIG. 8 is an exploded perspective view of the telephone.

FIG. 9 is a cross-sectional view showing another embodiment of the push button light emitting device of the present invention.

FIG. 10 is a perspective view showing a translucent body and a switch pushing body according to another embodiment of the push button light emitting device of the present invention.

FIG. 11 is an enlarged bottom view showing the translucent body and the switch pressing body.

12 is a cross-sectional view taken along the line CC of FIG.

FIG. 13A is a diagram showing an example of a conventional push button light emitting device. FIG. 6B is a plan view showing a push button used in this conventional example.
FIG. 13C is a sectional view taken along the line D-D in FIG.

[Explanation of symbols]

21 ... push button, 22 ... switch, 23 ...
Light emitting diode, 24 ... Switch pushing body, 25 ...
Through-hole body, 30 ... locking step portion, 31 ... locking step portion.

Claims (1)

[Scope of utility model registration request] 1. A push button provided in a button hole formed in a housing of a device so as to be movable in and out of the housing, and an opening / closing operation provided inside the housing by the push button. Switch and a light-emitting body that lights up when the switch is closed.The push button includes a switch push body made of an opaque material that is closed by pushing down the operating portion of the switch, and a separate body from the switch push body. And a light-transmitting body made of a transparent material that transmits the light emitted by the light-emitting body and has a plurality of inclined surfaces on the peripheral surface that reflects the light emitted by the light-emitting body. A holding hole is formed, the transparent body is fitted into the holding hole, and locking portions are formed on the inner surface of the switch pressing body and the outer surface of the transparent body, respectively. The translucent bodies are locked together A push button light emitting device, characterized in that the push button light emitting device is fixed to the switch pushing body.