JPH04121626U - push button device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a uniform elastic return force to a push button body even when a pressing part for pressing a switch is formed at a position offset from the center. [Structure] The push button device 11 includes a push button body 12 in which a pressing part 12A for pressing a switch 16 is formed at a position offset from the center, and a push button body 12 extending toward the center of the push button body 12 in an oval or oval shape. It is comprised of an elastic member 13 having a cylindrical protrusion 13A that is formed in a shape and elastically deforms when the push button main body 12 is pressed down, and a switch 16 located behind the pressing part 12A. Projection 1 of elastic member 13
3A, a uniform elastic return force acts on the push button body 12.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention is applicable to electronic devices such as in-vehicle audio equipment that are equipped with various switches, etc. This invention relates to a push button device attached to a work surface.

0002

[Conventional technology]

In terms of operation of conventional audio equipment, etc. (electronic equipment), it is necessary to operate various switches. For this reason, push button devices that are mounted from inside the housing are often used. See the drawing below. An example will be explained below. Figure 8 is a schematic sectional view showing a conventional push button device, and Figure 9 is a diagram. 8, and FIG. 10 is a schematic cross section for explaining the problems of the conventional example. It is a diagram. In the push button device 1 shown in the figure, a pressing part 3 that presses a switch 9 arranged close to each other is located in the middle. The push button body 4 is formed at a position away from the center D, and the push button body 4 includes the push button body 4 and the push button body 4, which is formed at a position away from the center D. An elastic member 6 having a cylindrical protrusion 5 that is elastically deformed by the pressing operation of the button body 4. The push button main body 4 is connected to the operation member formed on the housing by the mounting member 7 via the elastic member 6. It is configured to be attached to the surface 2 from the inside. The main reason why the pressing part 3 is formed at a position away from the center D is as follows. Ru.

0003 In-vehicle audio equipment uses multiple light sources (not shown) installed inside the housing at night. The operator can see the entire push button body 4 made of a translucent material by emitting light from the It is illuminated from the back for easy viewing. However, in this illumination state, from the operation surface 2 side When looking at the push button body 4, the light from the part where the pressing part 3 is formed at the rear is different from the surrounding parts. As a result, the pressure portion 3 becomes white and blurred. For this reason, as shown in Figure 8, The part 8 where numbers and operation display marks are printed on the lower surface of the push button body 4 (usually printed in white) is provided with the pressing part 3 at the rear, and the pressing part 3 is This makes the blurred state of the light in the room less noticeable from the outside.

0004

[Problem that the idea aims to solve]

However, the push button in which the pressing part 3 is formed at a position away from the center as described above In the device 1, the protrusion 5 of the elastic member 6 for returning the push button body 4 is located from the center D. As a result, the elastic force is biased with respect to the center D of the push button body 4. It acts on the position. Normally, you press the center of the push button body 4 with your finger, so this pressing force When a moment is generated due to the elastic force of the protrusion 5 and the push button body 4 is pressed down. As a result, the push button body 4 is tilted. As a result, the operation of the push button body 4 becomes awkward. Or, as shown in Figure 10, the push button body 4 returns to its original state even if the button is stopped It may be held in a state where it is caught on the back side of the operation surface 2 without returning to the original state.

[0005] This invention was made in view of the above circumstances, and the pressing part at the rear of the push button body is Even if the push button is formed in an uneven position, the elastic return force is created uniformly on the push button body. To provide a push button device in which return operation of a push button body can be performed smoothly by using The purpose is to

[0006]

[Means to solve the problem]

In the push button device according to the present invention, the pressing part that presses the switch is located away from the center. The formed push button body and the pressing part are included and are elasticized by the pressing operation of the push button body. and an elastic member having a cylindrical protrusion that is elastically deformable. The protruding portion of the elastic member may have a shape extending toward the center of the push button body. It is characterized by the following.

[0007]

[Effect]

According to the present invention having the above configuration, the protrusion extends toward the center of the push button body. Because it is a formed shape, regardless of the position where the protrusion is formed, it can be On the other hand, the restoring force acts uniformly. Therefore, the return movement of the push button body is smooth. Ru.

[0008]

【Example】 Hereinafter, the present invention will be explained 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, and FIG. 2 is a cross-sectional view of the same. 3 is a sectional view taken along the line II-II in FIG. 2, and FIG. 4 shows the operation of an embodiment of the present invention. It is a schematic sectional view for explanation. The push button device 11 shown in FIG. 12, an elastic member 13, and an illumination support member 14, and the push button body 12 has a housing. It is designed to be attached from the inside to an operation surface 19A formed in 19.

[0009] The push button main body 12 is entirely made of a translucent resin material, and the push button body 12 is made of a transparent resin material at night. The entire body 12 is illuminated. The back side of the push button body 12 (inside the housing 19) part side), a pressing part 12A that presses the switch 16 attached to the board 15; A light guide tube 12D that guides light to an operation confirmation section (indicator) 12C, which will be described later, is integrated. formed in the body. A fiber-shaped light guide is inserted into the light guide tube 12D. When this push button body 12 is pressed and the setting mode is entered, the operation can be confirmed. The portion 12C emits light.

0010 Further, on the outer periphery of the pushbutton body 12, there is a flange portion that is engaged with the back side of the operation surface 19A. 12B is formed. On the surface of the push button main body 12 (on the outside side of the housing 19), there is a push button Numeric display 12E for indicating the type of main body 12 and mode display 12 attached to the bottom F is formed by printing means. The pressing portion 12A that operates the switch is It is formed behind the mode display 12F formed at the bottom, and the entire push button body 12 is illuminated. mode display 12F makes the blurring and shadows caused by the pressing part 12A more noticeable. There is no such thing. Therefore, the pressing portion 12A is relative to the center D of the push button body 12. This means that it is formed in a position that is biased downward.

[0011] The elastic member 13 has a pressing portion 12A inserted thereinto which allows the push button body 12 to be pressed down. A cylindrical protrusion 1 that generates an elastic return force when pressed (usually pressed down by an operator's finger, etc.) 3A, and an insertion hole 13B into which the light guide tube 12D is inserted. said protrusion The portion 13A extends toward the center of the push button body 12 and has an oval or oval shape. It is formed in the shape of That is, in this embodiment, as shown in FIG. The protruding portion 13A into which A is inserted is inserted into the push button base from the bottom into which the pressing portion 12A is inserted. It extends to the center of the body 12 and further extends obliquely avoiding the light guide tube 12D.

0012 The elastic member 13 extends from the push button body 12 from the side where the protrusion 13A is formed. The illumination support member 14 is attached to the pressing part 12A of the housing 19, and the illumination support member 14 is attached to the It is hooked and fixed to the protrusion 19C. The elastic member 13 is made of an elastic material (for example, silicone). It is integrally molded with rubber, etc.). Alternatively, the protrusion can be pushed against the base plate. It may also be formed separately from a flexible material (for example, silicone rubber, etc.). Sara In addition, the elastic member 13 has a light guiding property so as not to block the light illuminating the entire push button body 12. It is preferable that it be made of a material that

[0013] The illumination support member 14 has an insertion hole 14A through which the pressing portion 12A can be inserted, and a front Irradiates the insertion hole 14B through which the light guide tube 12D can be inserted and the inside of the casing 19, which will be described later. It has a bottomed cylindrical protrusion 14C into which the light source 17 is inserted. This illumination support member 14 illuminates the entire push button body 12 with the light from the light source 17; is formed of a transparent material, and a paint or the like is applied to the front surface of the protrusion 14C. A light shielding surface 14D is formed so that the irradiated light is diffused into the illumination support member 14. The sea urchin is turning.

[0014] The board 15 is provided with the protrusions for illuminating the switch 16 and the illumination support member 14. The irradiating light source (light emitting diode, light bulb, etc.) 17 inserted into 14C, the light guide Light for operation confirmation is illuminated on the operation confirmation section 12C via the light guide in the tube 12D. A light source 18 for emitting light and electronic components (not shown) are provided.

[0015] The assembly process of the push button device 11 having the above configuration will be explained. First, the flange portion 12B is locked to the edge of the hole 19B of the operation surface 19A, and the front The press button main body 12 is mounted from inside the housing 19. After that, the protrusion 13A is attached to the pressing portion 12A of the push button body 12, and the elastic member 13 is attached. Next, the The light support member 14 is not detached from the plurality of latching protrusions 19C provided inside the housing 19. Fit it into place. After that, switch 16, light source (light emitting diode, light bulb, etc.) 1 7. A light source 18 that irradiates light to the operation confirmation section 12C through the light guide tube 12D; Then, the board 15 on which electronic components (not shown) are mounted is attached. At this time, the push button body A switch 16 is located behind the 12 pressing portions 12A.

[0016] In the push button device 11 having the above configuration, the protrusion 13A of the elastic member 13 is connected to the push button body 12. It extends toward the center of the back surface. Therefore, when the push button body 12 is pressed, the protrusion 13 The elastic return force exerted by the deformation of A is uniform without being biased against the push button body 12. It acts on Therefore, the return movement of the push button body 12 is uneven and has a smooth stroke. can be obtained. For example, as shown in FIG. Even if an excessive force is applied upward as shown by arrow F, the protrusion 13A Since the push button body 12 is biased uniformly from the back side, the push button body 12 does not tilt. Furthermore, the front surface of the push button body 12 will not get caught on the back side of the operation surface 19A. .

[0017] Although the embodiments have been described above, the present invention is not limited to the above embodiments. Therefore, various modifications can be made within the scope of the gist. For example, in the above embodiment, since the light guide tube 12D is provided, due to the arrangement thereof, Although the protruding portion 13A is formed obliquely, it does not necessarily need to be oblique. moreover The shape of the protrusion 13A is also a large diameter circle (see Figure 5), a triangle (see Figure 6), or a square. It can be modified into various shapes (see FIG. 7), polygons, etc. Also, as shown in Figure 9, the biased In addition to the protrusion 5 located at An elastic member may be provided with an elastic support portion.

[0018]

[Effect of the idea]

According to the present invention described in detail above, the pressing part that operates the switch is located at the center of the push button body. An elastic deformation part that includes this pressing part is provided at a position that is offset from the Even when It can be done smoothly and there is no chance of getting caught.

[Brief explanation of drawings]

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

FIG. 2 is a sectional view of the push button device shown in FIG. 1.

FIG. 3 is a sectional view taken along line II-II in FIG. 2;

FIG. 4 is a sectional view for explaining the operation of the embodiment shown in FIG. 1;

FIG. 5 is a sectional view corresponding to FIG. 3 for explaining a modified example of the shape of the protrusion.

FIG. 6 is a cross-sectional view for explaining a modification of the shape of the protrusion.

FIG. 7 is a cross-sectional view for explaining a modified example of the shape of the protrusion.

FIG. 8 is a schematic cross-sectional view showing a conventional push button device.

9 is a sectional view taken along the line II in FIG. 8. FIG.

FIG. 10 is a schematic cross-sectional view for explaining the problems of the conventional example.

[Explanation of symbols]

11 Push button device 12 Push button body 12A Pressing part 13 Elastic member 13A Projection 14 Lighting support member 16 switch

Claims (1)

[Scope of utility model registration request] 1. An elastic device having a push button body in which a pressing part for pressing a switch is formed at a position away from the center, and a cylindrical protrusion that encloses the pressing part and is elastically deformed by the pressing operation of the push button body. In a push button device comprising a member,
A push button device, characterized in that the protrusion of the elastic member has a shape extending toward the center of the push button body.