JPS6339862Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Field of Industrial Application) The present invention relates to a drive device for a switch mainly used in consumer equipment such as audio, video, and television.

(Prior Art) Conventionally, L-shaped operating levers have often been used in switch devices such as consumer equipment, but leaf springs, coil springs, etc. are used to elastically support this operating lever and return it to its original position. is used.

(Problems to be solved by the invention) According to the above-mentioned device, the arrangement of the leaf spring, coil spring, etc. with respect to the operating lever makes it mechanically complex, and the assembly work is also troublesome, reducing assembly workability and cost. There are problems with this.

The present invention was devised in view of these points, and aims to improve assembly efficiency with a simple configuration.

[Structure of the idea]

(Means for Solving the Problems) The switch driving device of the present invention has a switch actuating part 24 and an operating part 25 arranged in a substantially L-shape on the base frame 12.
An operating lever 22 made of a translucent material is rotatably provided. Further, when the operating lever 22 is rotated against the inner surface of the operating portion 25 of the operating lever 22, the operating lever 22 is attached to the base frame 12.
A cushion material 27 made of rubber is provided to provide elastic restoring force to the cushion member. Furthermore, a printed wiring board 34 is attached to the base frame 12, and this printed wiring board 3
A switch 35 operated by the switch operating portion 24 of the operating lever 22 is attached to the switch 4, and
The operating lever 2 is attached to the printed wiring board 34.
A lamp is provided to irradiate light onto the second switch operating section 24.

(Function) In the present invention, when the operating portion 25 of the operating lever 22 is pressed and rotated, the switch 35 is actuated by the switch actuating portion 24. At this time, as the operating lever 22 rotates, the cushion material 27 also receives stress and deforms, and when the pressing force is released, a force acts to return the cushion material 27 from its elastically deformed state to its original state, causing operation. Push up the lever 22 to return the operating lever 22.

Further, when the lamp 37 is turned on when the device is used, the light is emitted from the switch actuating portion 24 side of the operating lever 22 and shines as an edge light by illuminating the tip 25a of the operating portion 25.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In Fig. 1, reference numeral 1 denotes a device main body, and a front panel 2 is attached to the front of the device main body 1, and a plurality of operating elements, such as knobs 3 and 4 and push buttons 5 and 6, are arranged on this front panel 2. It is set up.
Further, a recessed portion 7 is provided approximately at the center of the front panel 2.
A display unit 11 is provided in the recessed portion 7 to display various functions.

As shown in FIGS. 2 and 3, this display unit 11 has a base frame 12 made of synthetic resin with openings on the front and rear surfaces, and has a base frame 12 on the inside of the front surface of the base frame 12 that extends from the inside to the outside. A display plate 13 made of transparent synthetic resin that also serves as a light guide for guiding light is fitted and fixed. On the back side of this display board 13, characters, symbols,
A display 14 is displayed on the scale or the like using white silk printing or the like, and a light shielding plate 15 of black or the like is bonded to the back side. In addition, display board 1
Side wall portions 16a, 1 bent inward at both ends of 3
6a is formed, a recess 17 is formed from the rear in the middle part of one side wall part 16a, and an inclined surface 18 facing upward and downward from the middle part is formed, and the surface end of one side wall part 16a reflective surfaces 19a, 19 for splitting light in left and right directions;
b is formed. Note that this reflective surface 19a,
19b has a white lacquer to increase reflection efficiency,
It is preferable to apply silver leaf or the like. Furthermore, display board 13
A plurality of indicators 20 made of transparent synthetic resin are fitted from inside to display other functions.

Approximately U-shaped bearing portions 21 are formed at intervals along both sides of the base frame 12.
A plurality of operation levers 22 (three in this embodiment) made of a translucent material such as transparent synthetic resin shown in FIG. A support shaft 23 is rotatably supported, and this operating lever 22 is connected to the side wall portion 16 in a substantially L-shape.
It integrally has a switch actuating part 24 facing the a and 16b, and an operating part 25 for the front side. Further, a fitting groove 26 is formed along the outside of the bearing portion 21, and a rubber cushion member 27 for the inner surface of the operating portion 25 of the operating lever 22 is fitted into the fitting groove 26. The cushion material 27 provides an elastic restoring force to the operating lever 22 when the operating lever 22 is rotated.

Reference numeral 28 denotes a protection plate made of transparent synthetic resin. On the back side of this protection plate 28, a plate 30 with a display 29 such as a scale or characters displayed by silk printing or the like is integrally provided. Edge pieces 31 are bent at the upper and lower parts, and a plurality of locking holes 32 are bored in the edge pieces 31. The protection plate 28 is abutted against the front surface of the base frame 12, and the upper and lower edge pieces 31 are abutted against the upper and lower surfaces of the base frame 12 to protrude into the locking holes 32 from the upper and lower surfaces of the base frame 12. It is fixed by engaging the protrusion 33.

Reference numeral 34 designates a printed wiring board, and push switches 35 for each of the operating levers 22 are mounted on both sides of this printed wiring board 34, and an operating piece 36 of each of the switches 35 is provided opposite to the switch operating portion 24 of each operating lever 22. There is. Further, a lamp 37 as a light source for illumination is attached to one side of the printed wiring board 34, and light emitting diodes 38 for each of the indicators 20 are attached. Furthermore, printed wiring board 3
4 has a plurality of engagement holes 39 bored therein.

Then, the printed wiring board 34 is fixed by engaging the engaging pieces 40 protruding from the base frame 12 into the respective engaging holes 39 on the back side of the base frame 12, and the printed wiring board 34 is fixed to the operating portion 24 of each operating lever 22. The operating pieces 36 of each switch 35 are disposed opposite to each other, a lamp 37 is disposed in the recess 17 of the side wall 16a, and a light emitting diode 38 is disposed for each indicator 20.

The display unit 11 assembled and integrated in this way is disposed in the recess 7 of the front panel 2 of the device main body 1, and has a plurality of locking claws 41 protruding from the base frame 21. is attached to panel 2 by locking it.

In such a configuration, when the power is turned on, the lamp 37 of the printed wiring board 34 lights up, and this light is absorbed by the recess 17 of the side wall 16a of the display board 13, and this absorbed light is It travels straight or disperses, and is also reflected by the inclined surface 18, and most of the light is guided forward and reflected by the reflective surface 1.
9a and 19b.

The light reflected by this one reflecting surface 19a is transmitted to the switch operating portion 24 of the operating lever 22 on one side.
The light is projected from the side and shines as an edge light by irradiating the tip 25a of the C-cut surface of the operating section 25, and then the light reaches the curved corner of the recess 7 of the front panel 2 and is reflected. do.

Further, the light reflected by the other reflective surface 19b is projected onto the entire display board 13, and the printed characters, symbols, and other displays 14 are reflected and appear clearly. At this time, since there is a light shielding plate 15 on the back side of the display board 13, all the light guided to the display board 31 crosses at right angles, and this orthogonal light reaches the other end surface of the display board 13, and the side wall Light is projected from 16b onto the actuating portion 24 of the other operating lever 22, and in the same manner as described above, the edge light of the tip 25a of the operating lever 22 is produced and reflected at the corner of the concave portion 7 of the front panel 2. When one of the operating levers 22 is selected and its operating portion 25 is pressed, the operating lever 22 rotates about the support shaft 23, and the switch actuating portion 24 activates the corresponding actuating member of the switch 35. 36 to switch to various modes.

At this time, as the operating lever 22 rotates, the cushion material 27 is also subjected to stress and deforms, but when the pressing force is released, a force is applied that causes the cushion material 27 to return from its elastically deformed state to its original state. Push up the operating lever 22 to return the operating lever 22.

The switch 35 is switched by pushing the operating piece 36 thereof, and is locked by its own locking mechanism. Then, as described above, it is released by operating the operating lever 22 again.

Note that the cushion material 27 may be formed by forming an inclined surface 27a at the inner corner as shown in FIG. 3, or by forming a hollow portion 27b inside as shown in FIGS. 5A, B, and C. Alternatively, the cushion material 27 may be formed into an oval shape as shown in FIG. It is desirable that the shape is such that it can easily return upwards when the pressing force is released.

[Effect of idea]

According to the present invention, a rubber cushion material is attached to the base frame, and the operating portion of the operating lever rotatably supported on the base frame is brought into contact with this cushion material, thereby elastically operating the operating lever. It can be installed with restoring force, has a simple structure, and is easy to assemble, and the rubber cushion material also deforms under stress as the operating lever rotates. When the pressing force is released, a force is applied to return the cushion material from its elastically deformed state to its original state, pushing the operating lever upward.
Since the operating lever is returned to its original position, the switching operation can be performed with a small pressing force, and operability can also be improved. Also, when the lamp is lit when the device is in use, the light is emitted from the switch actuating part of the control lever, shines as an edge light by illuminating the tip of the control part, and illuminates the position of the control part of the control lever. Can give clear instructions.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the device of the present invention, Fig. 2 is an exploded perspective view of its main parts, Fig. 3 is a sectional view of a part thereof, Fig. 4 is a front view of the operating lever,
5A, B, and C are plan views of the cushion material. 12...Base frame, 22...Operation lever, 24...
Switch operating section, 25... Operating section, 27... Cushion material, 34... Printed wiring board, 35...
Switch, 37...Lamp.

Claims (1)

[Scope of Claim for Utility Model Registration] A base frame; an operating lever rotatably provided on the base frame and integrally having a switch actuating part and an operating part in a substantially L-shape and made of a translucent material; A rubber cushion material is provided on the base frame on the inner side of the operating portion of the operating lever and provides an elastic restoring force to the operating lever when the operating lever is rotated; a printed wiring board; a switch mounted on the printed wiring board and operated by the switch operating portion of the operating lever; and a switch provided on the printed wiring board that irradiates light to the switch operating portion of the operating lever. A switch drive device characterized by comprising: a lamp that performs the operation;