JPH0560955U - control panel - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an operation panel that has high reliability of knob illumination and can be thinned in a vehicle-mounted electronic device. A tact switch 3, a lamp 4, and a first light guide plate 5 are fixed to a printed circuit board 2 attached to a panel holder 1a of a main body 1 of an audio device. On the other hand, the operation panel 6 includes an illuminated knob 7, an elastic member 8 and a second member.
The light guide plate 9 is provided, and the second light guide plate 9 is fixed to the hole 6d on the back surface 6c so as to face the first light guide plate 5. As a result, the light from the lamp 4 is guided to the light guide portion 7b via the first and second light guide plates 5 and 9, and illuminates the knob 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an operation panel of an on-vehicle electronic device, and more particularly to a removable operation panel.

[0002]

[Prior art]

 Conventionally, a detachable operation panel for in-vehicle audio equipment as shown in Fig. 4 has been provided. FIG. 4 is a top sectional view showing the operation panel and the main body of the audio device. In the figure, reference numeral 21 denotes a main body of an on-vehicle audio equipment, a panel holder 21a having a recess 21b is provided at a front portion thereof, and holes 21c and 21d for switches and terminals are provided. Reference numeral 22 denotes a printed circuit board, which is attached to the panel holder 21a, has a plurality of tact switches 3 fixed at positions facing the ends of the light guides of the respective knobs, and has a terminal 24 fixed at the left end.

Reference numeral 25 is a detachable operation panel, and an illumination type knob is inserted and supported in a plurality of holes 25b in the front surface 25a. The rear surface 25c is provided with holes 25d and 25e for the light guide portion of the knob and terminals. Reference numeral 26 denotes a push knob, which is formed of a light-transmitting member, and is provided with a collar 26a and a light guide portion 26b which is inserted into the hole 25c to operate the tact switch 3 and guide light from the light guide plate. ing. Reference numeral 27 denotes an elastic member which urges the knob 26 toward the front surface 25a of the operation panel 25 and gives a feeling when the knob 26 is pushed.

Reference numeral 28 denotes a printed circuit board mounted inside the operation panel 25, to which the lamp 30 and the light guide plate 31 near the knob 26 are fixed. Reference numeral 29 denotes a terminal fixed to the printed circuit board 28, which projects from the hole 25e and comes into contact with the terminal 24 of the main body 21 for electrical connection.

The operation of the conventional operation panel configured as described above will be described.

The operation panel 25 mounted on the panel holder 21 a of the main body 21 is in contact with the terminal 24 fixed to the print substrate 22 on the main body 1 side and the terminal 29 of the operation panel 25 to be supplied with power. Lamp 30 is on. The light from the lamp 30 is guided to the light guide plate 31, enters the light guide portion 26b of each knob 26, and illuminates the knob 26.

Further, when the knob 26 is pushed, the elastic member 27 is compressed by the collar 26a, the end of the light guide portion 26b operates the tact switch 3, and when the knob 26 is released, the elasticity of the elastic member 27 causes the knob 26 to move. Returns.

[0008]

[Problems to be solved by the device]

 However, the above-mentioned conventional operation panel has a large number of parts for illuminating the knob mounted inside the operation panel, resulting in high cost.

Further, the thickness of the operation panel is increased, which is not preferable in appearance.

Further, the contact between the terminal on the main body side and the terminal on the operation panel side is unstable, and a conduction failure is likely to occur.

Further, the light guide portion of the knob becomes long, and deformation due to molding is likely to occur, and the strength is weak.

The present invention has been made in view of the above points, and an object of the present invention is to solve the drawbacks of the conventional example, to provide a highly reliable knob illumination, and an operation panel capable of reducing the thickness of the panel. It is in the place of providing.

[0013]

[Means for Solving the Problems]

 In the operation panel of the detachable on-vehicle electronic device of the present invention, a translucent knob having a rod-shaped light guide section provided on the operation panel and a light guide section of the knob provided on the electronic apparatus body. A switch that faces the switch, a light-emitting body disposed near the switch, and a printed circuit board that includes a first light guide plate that guides light from the light-emitting body. The operation panel includes an elastic member that urges the front surface side and a second light guide plate that supports the elastic member and faces the first light guide plate, and is attached to the printed circuit board of the main body. The light from the light emitting body is configured to illuminate the knob via the first and second light guide plates.

Further, the second light guide plate and the elastic member are integrally formed on the operation panel by a light-transmitting elastic body.

Further, in a detachable operation panel for an on-vehicle electronic device, a translucent knob having a rod-shaped light guide section provided on the operation panel and a light guide section of the knob are arranged so as to face each other. It is composed of an electronic device body that has a printed circuit board with an illuminated switch that contains a light-emitting body, and an operation panel that has an elastic member that biases the knob toward the front side of the operation panel. The switch is configured to illuminate the knob with light.

[0016]

[Action]

 According to this invention, the light emitting body and the first light guide plate are fixed to the printed circuit board attached to the main body, so that the second light guide plate for guiding the light from the light emitting body and the elastic body inside the operation panel are fixed. Just attach the members.

Further, since the third light guide plate made of a light-transmitting elastic member is provided in place of the second light guide plate and the elastic member, the light from the light emitting body is guided to the knob by the third light guide plate. It emits light and is compressed when the knob is pressed to give a proper feel. When the knob is released, it will return due to the elasticity of the third light guide plate.

Further, since the switch incorporating the light emitting body is fixed to the printed circuit board attached to the main body, only the elastic member for urging the knob may be attached inside the operation panel.

[0019]

【Example】

 An embodiment of the operation panel according to the present invention will be described with reference to FIGS.

The same parts as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. 1 is a top sectional view showing a first embodiment of the present invention, FIG. 2 is a top sectional view showing the second embodiment, and FIG. 3 is a top sectional view showing the third embodiment.

In the figure, reference numeral 1 is a main body of an on-vehicle audio equipment, a panel holder 1a is provided on the front surface, and a detachable operation panel is attached to a concave portion 1b of the panel holder 1a. Reference numeral 2 denotes a printed circuit board attached to the panel holder 1a. A plurality of tact switches 3 are provided at positions facing the end portions of the light-transmitting portions of the respective knobs, and a lamp 4 as a light-emitting body is fixed in the vicinity thereof. A first light guide plate 5 that has a recess 5a that covers 4 and a hole 5b for the tact switch 3 and that guides light is fixed.

Reference numeral 6 denotes a detachable operation panel, which is mounted in the concave portion 1b, and an illumination type knob is inserted through and supported by a plurality of holes 6b in the front surface 6a. The back surface 6c is provided with a hole 6d for the second light guide plate. Reference numeral 7 denotes a push knob, which is urged toward the front surface 6a by an elastic member, is formed of a translucent member, operates the collar 7a and the tact switch 3, and guides light from the second light guide plate. A light guide portion 7b that emits light is provided. Reference numeral 8 denotes a sheet-like elastic member, which is supported by the second light guide plate, is compressed when the knob 7 is pushed, and returns when the knob 7 is released by elasticity. Reference numeral 9 denotes a second light guide plate, which is fixed to the hole 6d on the back surface 6c, faces the first light guide portion 5 in the vicinity thereof, and is inserted into the hole 9a through which the light guide portion 7b of the knob 7 is inserted. Guide the light.

Reference numeral 10 denotes a third light guide plate attached to the hole 6d of the back surface 6c, which is formed of an elastic member having a light-transmitting property, and the light from the first light guide plate 5 is guided by the light guide portion 7b. The knob 7 is guided to the inserted hole 10a, and when the knob 7 is pushed, it is compressed by the collar 7a. When released, the knob 7 is restored by elasticity.

Reference numeral 11 denotes a sheet-like elastic member, which is compressed when the knob 7 is pushed and returns by the elastic force when the knob 7 is released. Reference numeral 12 denotes an illuminated tact switch having a light-emitting body inside, which faces the end of the light guide portion 7b of the knob 7. The operation of the operation panel of the present invention constructed as above will be described. In the first embodiment shown in FIG. 1, the operation panel 6 mounted on the panel holder 1a of the main body 1 has the light from the lamp 4 fixed to the printed circuit board 2 on the main body 1 side as the first light guide plate. The light is guided by the light guide plate 5 and the second light guide plate 9 and enters the light guide portion 7b of the knob 7 to illuminate the knob 7.

Further, when the knob 7 is pushed, the tact switch 3 is operated by the end portion of the light guide portion 7b. At the same time, the elastic member 8 is compressed by the collar 7a, and the knob 7 has a pleasant feel. When the knob 7 is released, the elasticity of the elastic member 8 causes the knob 7 to slide and return in the downward direction in FIG.

In the second embodiment shown in FIG. 2, the light from the lamp 4 fixed to the printed board 2 on the main body 1 side is guided by the first light guide plate 5 and the third light guide plate 10. The light enters the light guide portion 7b of the knob 7 and illuminates the knob 7.

Further, when the knob 7 is pushed, the tact switch 3 is operated by the end of the light guide portion 7b. Along with this, the third light guide plate 10 is compressed by the collar 7a, and the knob 7 has a pleasant feel. When the knob 7 is released, the elasticity of the elastic member 8 causes the knob 7 to slide downward in FIG.

In the third embodiment shown in FIG. 3, the light from the illuminated tact switch 12 fixed to the printed board 2 on the main body 1 side enters the light guide portion 7 b of the knob 7 and illuminates the knob 7. To do.

When the knob 7 is pushed, the illuminated tact switch 12 is activated by the end of the light guide 7b. At the same time, the elastic member 11 is compressed by the brim 7a to give the knob 7 a pleasant feel. When the knob 7 is released, the elastic force of the elastic member 11 causes the knob 7 to slide downward in FIG.

[0030]

[Effect of the device]

 Since the operation panel according to the present invention is configured as described above, both terminals used in the conventional example are unnecessary and the number of parts is reduced, so that the cost can be reduced. Also, since the number of parts inside the operation panel is reduced, the thickness of the panel can be reduced and space can be saved.

Further, since the panel is thin, the appearance can be made beautiful. Also, since no electrical connection is required, the knob will be illuminated reliably and reliability will be improved. Furthermore, since the light guide portion of the knob can be shortened, deformation due to molding is reduced and strength is also increased.

[Brief description of drawings]

FIG. 1 is a plan sectional view showing an operation panel and an electronic device body of a first embodiment of the present invention.

FIG. 2 is a cross-sectional plan view showing an operation panel and an electronic device body of the second embodiment.

FIG. 3 is a plan sectional view showing an operation panel and an electronic device body of the third embodiment.

FIG. 4 is a plan sectional view showing an operation panel and an electronic device body in a conventional example.

[Explanation of symbols]

 1 Main Body 1a Panel Holder 1b Recess 2 Printed Circuit Board 3 Tact Switch 4 Lamp 5 First Light Guide Plate 5a Recess 5b Hole 6 Operation Panel 6a Front 6b Hole 6c Rear 6d Hole 7 Knob 7a Flange 7b Light Guide 8 Elastic Member 9 Second Light guide plate 10 Third light guide plate 11 Elastic member 12 Illuminated tact switch

Claims (3)

[Scope of utility model registration request] 1. A detachable operation panel for an on-vehicle electronic device, comprising: a translucent knob having a rod-shaped light guide section provided on the operation panel; and a guide for the knob provided on the electronic apparatus body. A switch facing the light section, a light-emitting body arranged in the vicinity of the switch, and a first light-guide for guiding light from the light-emitting body.
And a printed circuit board having a light guide plate, and an elastic member for urging the knob toward the front side of the operation panel, and a second conductive member supporting the elastic member and facing the first light guide plate. And an operation panel having a light plate, wherein light from a light emitting body attached to a printed circuit board of the main body illuminates a knob via the first and second light guide plates. Operation panel to be used. 2. The operation panel according to claim 1, wherein the second light guide plate and the elastic member are integrally formed on the operation panel by a light-transmitting elastic body. 3. A removable operation panel for an on-vehicle electronic device, wherein a translucent knob provided on the operation panel and having a rod-shaped light guide section, and light emitted so as to face the light guide section of the knob. An electronic device main body having a printed circuit board having an illuminated switch with a body incorporated therein, and an operation panel having an elastic member for urging the knob toward the front side of the operation panel. An operation panel that is configured to illuminate the knob with light.