JPH0243060Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is an improvement of a knob device that has push operation functions in four directions with one knob, in the field of push operation knob devices used in electronic equipment. Regarding.

[Conventional technology]

The general structure of a knob device that has a push operation function in four directions with one knob is, as shown in FIG. 31b and a stopper portion 31c, a mounting base 32 having a spring seat 32a at a position opposite to the spring seat 31a of the knob 31, and a base plate 35 having switches 34 at four locations, the mounting base 32 and the spring 33 interposed between the
and a panel 36 in which a window hole 36a for the knob 31 is drilled, and when the knob 31 is not operated, the stopper portion 31c of the knob 31 is pulled into the panel 36 by a spring 33.
6, the operating protrusion 31b of the switch 31 and the switch 34 are brought into a non-contact state by pressing against the back surface of the switch 31.

[Problems that the idea should solve]

In the above conventional example, since the knob 31, the mounting base 32, etc. are constructed by combining a plurality of parts, there is inevitably a clearance H between the operating protrusion 31b and the switch 34, which corresponds to the tolerance of each part. The feeling of movement is not good, and since the position and direction of the knob 31 are determined using the hole 36a of the panel 36 as a guide, the movement is not smooth due to friction etc.
Furthermore, there is a drawback that the knob tilts or rotates due to repeated operations and cannot be returned to its original position or direction.

[Means for solving problems]

The knob device according to the present invention to solve the problems of the conventional example has a knob part, a hinge part A that supports the knob part at two positions facing the middle frame, and a direction perpendicular to the hinge part A. It consists of a hinge part B and a panel that support the middle frame to the panel at two places, and the knob part, hinge part A, middle frame, hinge part B, and panel are integrally molded with synthetic resin, etc., and the back side of the knob part is provided with two operating protrusions A for switch operation in a direction perpendicular to the hinge A, and on the back of the middle frame in a direction perpendicular to the hinge part B,
That is, two operation protrusions B for switch operation are provided in a direction perpendicular to the operation protrusion A, and a switch is attached to each of the positions corresponding to the operation protrusions A and B on the board.

[Effect]

The knob device with the above structure according to the present invention has an extremely small number of component parts because the knob part, hinge part A, middle frame, hinge part B, and panel are integrally molded from synthetic resin, and it is not necessary to attach a large number of parts as in the conventional case. There is no looseness due to the looseness caused by fixing, no smooth operation due to mutual friction between parts, and no failure to return the position or direction of the knob due to repeated operations.

〔Example〕

The configuration of the knob device according to the present invention will be explained with reference to FIGS. 1 and 2. 1 is supported on the inner side of the middle frame 3 by a hinge part A2 at two opposing places in the knob part, and the middle frame 3 is supported inside the panel 5 at two opposing places in a direction perpendicular to the hinge part A2 by a hinge part B4. It is supported by the holder part 5a.

An operation projection A6 for operating the switch 8 is provided on the back surface of the knob section 1 at a symmetrical position of the knob section 1 in a direction orthogonal to the hinge section A2, and an operation protrusion A6 for operating the switch 8 is provided on the back surface of the middle frame 3 in a direction perpendicular to the hinge section B4. In other words, there are two operating protrusions B for operating the switch 8 in a direction perpendicular to the operating protrusion A6 and at symmetrical positions on the middle frame 3.
7 is provided.

The above-mentioned knob part 1, hinge part A2, middle frame 3,
The hinge portion B4, the panel 5, the operating protrusion A6, and the operating protrusion B7 are integrally molded of synthetic resin with the knob protruding from the inner frame 3.

A board 9 with switches 8 attached at respective positions corresponding to the operating protrusions A6 and B7 is attached below the surface of the panel 5 to constitute a knob device.

In this embodiment, in order to improve the appearance, a decorative member 10 is attached to the upper surface of the knob portion 1 to give it a decorative effect. Even if 10 is omitted, the device can still function perfectly as a knob device.

〔effect〕

The knob device according to the present invention described above has the following effects.

1. Since the knob part, inner frame, etc. are integrally molded, the dimensional accuracy for the switch is good.

2 By adjusting the dimensions of each hinge part to make the elastic force suitable for the switch operating pressure, in combination with the effect of 1 above, it is possible to eliminate the play seen in the conventional example, which is very effective. Provides an excellent sense of motion.

3. Since each operating part such as a knob is elastically supported by an integrally molded hinge part, it has good resilience against repeated movements and is extremely durable.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of the knob device according to the present invention, Figures 2a, b, and c are front views of the same main parts;
The directional sectional view and FIG. 3 are half sectional views of the conventional example. 1 is the knob part, 2 is the hinge part A, 3 is the middle frame, 4
is the hinge part B, 5 is the panel, 6 is the operating protrusion A, 7
8 is an operating projection B, 8 is a switch, and 9 is a board.

Claims (1)

[Scope of utility model registration request] A middle frame 3 supported by a panel 5 and hinge portions B4 provided at two symmetrical locations inside the panel 5
and a knob part 1 supported by hinge parts A2 provided at two places in the direction orthogonal to the hinge part B4 inside the middle frame 3, are integrally molded with synthetic resin, and the rear surface of the knob part 1 is integrally molded with synthetic resin. The hinge part A
Operating protrusions A6 are located at two symmetrical locations in the direction orthogonal to
At the same time, operating protrusions B7 are provided on the back surface of the middle frame 3 at two symmetrical locations in a direction orthogonal to the operating protrusions A6, and the operating protrusions A and the operating protrusions on the upper surface of the board 9 disposed on the back surface of the panel 5 are provided. Protrusion B
A knob device characterized in that it has a configuration in which switches 8 are attached to respective positions corresponding to the above.