JP2530652Y2 - Push button device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push button device which is mounted on an operation surface on which various switches of an electronic device such as a vehicle-mounted audio device are provided.

[0002]

2. Description of the Related Art On the operation side of a conventional on-vehicle audio device or the like (electronic device), a push button device mounted from the inside of a housing is often used for operating various switches.
An example will be described below with reference to the drawings. FIG. 6 is a schematic sectional view showing a conventional push button device. The push button device 1 shown in the figure includes a first illuminating unit (usually displaying character information such as a number) 2 which is always illuminated on one surface, and a second illuminating unit which is illuminated during operation. (Indicator) 3,
A push button main body 5 having a pressing portion 4 for pressing a switch formed on the other surface; a first light source 6 and a second light source 7 for irradiating light to the respective illuminating portions 2 and 3;
And a board 9 provided with a switch 8 pressed by the switch. The push button body 5 is provided with a light shielding plate 5A for shielding light from the first light source 6 to the second illuminating unit 3.

When the operator depresses the push button body 5, the switch 8 is turned on or off. When the switch 8 is on, the second light source 7
Can illuminate the second illuminating section 3 to check the operation. Then, when the operator stops pressing the push button body 5, the push button body 5 returns to the original state by the restoring force of the elastic member 8A in the switch 8.

[0004]

However, as described above, when the operator presses the push button body 5, when an excessive pressing force is applied or when the pressing force is continuously applied, the above-described operation is performed. The switch 8 is depressed beyond the allowable range, resulting in a problem that the switch 8 is damaged. As a countermeasure, it is conceivable to separately provide a regulating member for regulating the movement range of the push button body 5, but as described above, the first light source 6 and the second light source 7 are provided below the push button body 5. Since the switch 8 pressed by the pressing portion 4 is provided close to the electronic device and a large number of electronic components (not shown) are arranged, it is difficult to separately arrange the above-described regulating member.

The present invention has been made in view of the above circumstances, and protects a switch without damaging the switch even when an excessive pressing force is applied or when the pressing force is continuously applied. It is an object of the present invention to provide a push button device capable of performing the following.

[0006]

According to the present invention, there is provided a push button device having an illuminating portion illuminated during operation and having a pressing portion formed on the back side for pressing a switch, provided on an operation surface, In a push button device including a substrate equipped with a light source that irradiates light to the illuminating portion and a switch pressed by the pressing portion, light from the light source is provided between the push button body and the substrate. A cylindrical light-blocking member that blocks from the surroundings and sends the light to the illuminating section is interposed, and an end of the light-blocking member facing the push button body is a regulating section that regulates a pressing operation range of the push button body. It is characterized by having.

[0007]

According to the present invention having the above-described structure, the push button main body in which the regulating portion of the tubular body formed on the shielding member has moved to the regulation range is stopped. As a result, the pressing portion does not excessively press the switch. In addition, since the light from the light source is shielded from the surroundings by the cylindrical shielding member having this regulating portion,
For example, even when the switch and the light source are arranged close to each other, it is possible to block light and control pressing of the switch.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing the configuration of an embodiment of the push button device of the present invention, FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1, FIG. FIG. 5 is a sectional view showing a pressed state, and FIG. 5 is an enlarged view of a portion Y in FIG. The push button device 11 shown in FIG. 1 is provided in an in-vehicle acoustic device, and is roughly divided into a push button body 12, a light blocking member 13, a light guide member 14, and a substrate 15, and the push button body 12 is formed in a housing 19. The operation surface 19A is mounted from the inside.

The push button body 12 is formed of, for example, a non-translucent resin material. The push button body 12 is partially buried with a translucent resin material or the like, and the translucent material allows the first illuminating portion (the type of the push button body 12 to be constantly illuminated at night on the surface thereof). This is a numerical display for indicating, which is indicated as “2” or “3” in the figure) 12A and a second light illuminated during an operation (each mode of the tape player).
And the illuminating portion 12B. At night the first
The illumination section 12A is illuminated in conjunction with a switch of a vehicle sidelight. On the other surface of the push button body 12 (inside of the housing 19), a pressing portion 12C for pressing the switch 16 attached to the substrate 15 is integrally formed (not necessarily formed integrally).

The operation surface 1 is provided on the outer periphery of the push button body 12.
A flange portion 12D to be locked on the back side of 9A is formed. The light shielding member 13 is formed of a non-translucent resin, and has a flat portion 13C and a cylindrical portion 20 serving as a shielding portion.
And is fitted and fixed to a plurality of fitting portions 19C provided in the housing 19 as shown in FIG.

The cylindrical portion 20 has one end (an operation surface 19A).
A positioning portion 20A that regulates the pressing operation range of the push button main body 12 on the side) and a positioning portion 20B that abuts on the substrate 15 while enclosing the second light source 18 and serves as a positioning reference of the substrate 15 at the other end. Is formed, and blocks light of a first light source 17 and a second light source 18 to be described later from each other.
An optical path from the light source 18 to the second illumination unit 12B is formed. In addition, the restricting portion 20A is provided in FIG.
As shown in FIG. 3, a gap G is provided between the back surface of the push button body 12 and the mounting portion 12E of the second illuminating portion 12B.
(Regulated range). by this,
When the push button body 12 is pressed, the regulating portion 20A comes into contact with the mounting portion 12E of the push button body 12, and stops the push button body 12 that has moved through the gap G.

Further, the flat portion 13C of the light shielding member 13
An insertion hole 13A through which the pressing portion 12C is inserted and an insertion hole 13B through which a projection 14A of the light guide member 14, which will be described later, are inserted. In this embodiment, the fitting portion 19C to which the light shielding member 13 is fitted is described as being formed at the end of the housing 19, but the fitting portion is provided at an appropriate position of the housing 19. Then, the light shielding member 13 may be fitted.

The light guide member 14 is formed of a translucent resin material. The light guide member 14 corresponds to the insertion hole 14B into which the first light source 17 is inserted and the first illuminating portion 12A of each push button body 12. The provided projection 14A is formed. As described above, the protrusion 14A is fitted into the insertion hole 13B of the light shielding member 13, and the front end surface thereof faces the back surface of the first illumination unit 12A. The light emitted from the first light source 17 is diffused and reflected inside the light guide member 14, and is emitted from the projection 14A to each of the first illumination parts 12A.

The substrate 15 has a switch 16 and a first light source (a light bulb or the like having a large amount of light is used) 17 inserted into the insertion hole 14B to illuminate the light guide member 14.
A second light source (using a light emitting diode or the like) 18 and an electronic component (not shown) are provided inside the tubular body 20 (inside the positioning section 20B) to illuminate the second illumination section 12B. I have. And this substrate 15
Are locked to the housing 19 by a plurality of locking portions 19 </ b> D provided on the housing 19.

Next, an assembling process of the push button device 11 having the above configuration will be described. First, the hole 1 of the operation surface 19A
The flange portion 12D is locked to the edge of 9B, and the push button body 12 is mounted from the inside of the housing 19. Thereafter, the light blocking member 13 is attached by fitting the insertion hole 13A to the plurality of fitting portions 19C provided inside the housing 19 while attaching the insertion hole 13A to the pressing portion 12C of the push button body 12. Next, the light guide member 14 is attached to the light shielding member 13 while inserting the projection 14A into the insertion hole 13B of the light shielding member 13. At this time, it is desirable that the light guide member 14 is attached in contact with the light shielding member 13 so that light is not diffused much. Thereafter, the switch 16 is brought into contact with the pressing portion 12C of the push button body 12, the first light source 17 is inserted into the insertion hole 14B of the light guide member 14, and the second light source 17 is inserted.
The light source 18 is inserted into the positioning portion 20B of the light shielding member 13 and the substrate 15 is held by the plurality of locking portions 19D.
Lock and attach to At this time, the substrate 15 is
3 is brought into contact with the positioning portion 20B, so that the operation surface 19A
The distance between the rear surface and the substrate 15 is determined by interposing the cylindrical portion 20. Thereby, the pressing portion 12
C is held in a state where it is pushed up by the switch 16, and the regulating portion 20A and the mounting portion 12E of the second illuminating portion 12B in the push button body 12 have a gap G (regulated range), and the push button device 11 is assembled.

Next, the operation of the push button device 11 having the above configuration will be described with reference to FIGS. In the following description, an example in which the first light source 17 is turned on only when nighttime lighting (vehicle light, headlight, etc.) is turned on will be described. First, when the operator turns on the power of an acoustic device (not shown) in the state where the vehicle width light, the headlight, and the like are turned on at night, the first light source 17 is turned on. The light emitted from the first light source 17 is guided by the light guide member 14, and is emitted from the projection 14A to the first illumination unit 12A. The light emitted from the first light source 17 is
Irradiation to other parts by the light shielding member 13 can be minimized, so that the operator can accurately check the display of the first illumination unit 12A even at night.

Next, when the push button body 12 is pressed, the pressing portion 12C presses the switch 16 to operate the audio equipment (for example, to set the tape to the play mode). At this time,
Since the regulating portion 20A of the tubular portion 20 stops the push button body 12 which has moved the distance of the gap G (see FIGS. 4 and 5), the switch 16 operates without being excessively pressed by the pressing portion 12C. Can be. At the same time, the second light source 18 is turned on, and this light is led out into an optical path formed inside the tubular portion 20 and illuminates the second illuminating portion 12B, so that the operator can use the acoustic device. Operation can be confirmed. At this time, since the light of the second light source 18 is applied only to the light-shielded cylindrical body 20, the light is applied to the second illuminating unit 12B without interference of the light of the first light source 17. Therefore, the light color of the first light source 17 and the light color of the second light source 18 can be different colors.

As described in detail above, according to the above embodiment, the regulating portion 20 of the cylindrical body 20 formed on the light shielding member 13 is provided.
The push button body 12 in which A has moved to the regulation range is stopped. Therefore, even when an excessive pressing force is applied or a pressing force is continuously applied, the pressing portion 12C does not excessively press the switch 16, and the switch 16 can be protected. In addition, there is an effect that the distance between the rear surface of the operation surface 19A and the substrate 15 can be determined by the positioning portion 20B of the cylindrical body 20. Although the embodiment has been described above, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the invention. For example, in the above-described embodiment, the switch itself is provided with the elastic member, and the return operation of the push button body is performed. However, the switch and the elastic member may be configured as separate members.

[0019]

According to the present invention described in detail above, even when an excessive pressing force is applied or when the pressing force is continuously applied, the switch can be protected without being damaged, and the light source can be provided. And a switch can be provided densely.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a configuration of one embodiment of a push button device of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged view of a part X in FIG. 2;

FIG. 4 is a cross-sectional view illustrating a state where a push button body is pressed.

FIG. 5 is an enlarged view of a portion Y in FIG. 4;

FIG. 6 is a schematic sectional view showing a conventional push button device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 push button device 12 push button body 12A first illuminating section 12B second illuminating section 12C pressing section 13 light blocking member 13A insertion hole 14 light guide member 15 substrate 16 switch 17 first light source 18 second light source 19A operation surface 20 cylinder Shaped part (body) 20A Restriction part 20B Positioning part

Claims (1)

(57) [Scope of request for utility model registration] 1. A push button body having an illuminating portion illuminated during operation and having a pressing portion for pressing a switch formed on the back side and provided on an operation surface, a light source for illuminating the illuminating portion with light, and In a push button device including a substrate equipped with a switch pressed by a pressing portion, a tube between the push button main body and the substrate for blocking light from the light source from surroundings and sending the light to the illuminating portion A push button device, wherein a light-shielding member in the shape of a letter is interposed, and an end of the light-shielding member facing the push button body serves as a regulating portion that regulates a pressing operation range of the push button body.