JPH11163554A - Push button device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to upsize a button operating surface, to share a frame with other models and to simplify the make-up of components, by using a part of a button hole of a housing as a surface to be opposed to a button and to prevent an improper operation by forming a hinge on the surface. SOLUTION: A push button 4 is rotated around a hinge 5 as fulcrum and is allowed to push a switch 2. When the switch 2 is further pushed, the underside of the push button is made in contact with a surface 11. With this structure, since the operating physical force is not directly applied to a substrate, the button can be upsized, a common frame can be used and the makeup of components can be simplified. Also, since the underside of the button is made in contact with a hinge 13 formed on the surface 11 before the switch 2 is pushed, the operating physical force is increased and an improper operation can be prevented.

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 capable of operating a switch inside a housing.

[0002]

2. Description of the Related Art The structure of a conventional push button device will be described below. FIG. 6A is an exploded perspective view showing a configuration of a conventional push button device, and FIG. 6B is a cross-sectional view of the push button device in which each part is assembled. 6, reference numeral 10 denotes a frame of a device main body operated by the present apparatus, and 1 denotes a frame 1.
0, a substrate on which various electronic components are mounted, 6 is a housing which is an exterior part of the device body, 7 is a boss provided on the back side of the housing 6, and 3 is a boss 7 And 9 are button holes provided in the housing 6 and are opened at least larger than the outer shape of the push button 4. Reference numeral 4 denotes a push button which is mounted inside the housing 6 and a part of which is exposed to the outside of the housing via the button hole 9, 8 denotes a pin for fixing the push button 4 to the inside of the housing 6, and 5 denotes a push button 4 A hinge portion provided between the pin 8 and a part of the push button 4 so that the push button 4 bends when the push button 4 is pressed.
And a switch pressed by the switch.

[0003] The operation of the push button device of the present embodiment configured as described above will be described below.

The push button 4 having the hinge portion 5 is fixed to the inside of the housing 6 from the rear surface of the housing 6 by welding or press-fitting the pin with a pin 8 so that the operation portion of the push button 4 projects from the button hole 9. . Substrate 1 having switch 2 on the back side of housing 6
Are fixed to the boss 7 with screws 3. Further, the substrate 1 is fixed to the frame with an adhesive or the like. Then, the push button 4 rotates in the direction shown by the arrow A with the hinge 5 as a fulcrum, and can push the switch 2.

[0005]

However, in the conventional push button device, when an excessive operation force is applied to the push button 4, the force is directly applied to the substrate 1 and there is a possibility that a click failure or a crack of the substrate 1 may occur. is there. To prevent this, it is necessary to fix the substrate 1 in the vicinity of the switch 2 or to support the substrate 1 from the back of the substrate 1 with ribs or pins of the frame 10 so that the substrate is not bent. However, in the former case, when the surface of the operation unit is enlarged to improve the operability of the push button 4, the distance between the boss 7 for fixing and the switch 2 is increased, and the effect is lost. In the latter case, when the arrangement of the switch 2 is changed, the frame 10 becomes incompatible and cannot be shared.

Further, when it is desired to increase the operating force of the push button, a switch having a large operating force is used as the switch 2, but there has been a problem that the operating force cannot be set freely.

[0007] In view of the above-mentioned conventional problems, the present invention can prevent a force from being directly applied to a substrate when an excessive operating force is applied to a push button. Also, a hinge shape is formed on a part of this surface, and the operating force of the push button is increased by the back surface of the push button abutting on this hinge before the push button presses the switch, and the operating force is easily adjusted by the shape of the hinge. It is an object of the present invention to provide a push button device capable of preventing erroneous operations.

[0008]

Means for Solving the Problems To solve the above problems, a push button device of the present invention is a push button device capable of operating an internal switch by rotatably mounting the push button on a housing, and A claw portion provided and engaged with the housing, a button hole provided on the housing and exposing a part of the push button when the push button is mounted, and a back surface of the push button provided near the button hole when the push button is pressed contacts. By providing the contact surface, when an excessive operation force is applied to the push button, it is possible to prevent a force from being directly applied to the substrate.

A push-button device in which a push-button is rotatably mounted on a housing to operate an internal switch, so that when an excessive operating force is applied to the push-button, a direct force is prevented from being applied to the substrate. be able to. Also, a hinge shape is formed on a part of this surface, and the operating force of the push button is increased by the back surface of the push button abutting on this hinge before the push button presses the switch, and the operating force is easily adjusted by the shape of the hinge. Erroneous operation can be prevented.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claims 1 and 2 of the present invention is a push button device capable of operating an internal switch by rotatably mounting a push button on a housing, wherein the push button is provided on the push button. A claw portion that engages with the housing, a button hole provided on the housing where a part of the push button is exposed when the push button is mounted, and an abutment provided in the vicinity of the button hole where the back surface of the push button abuts when the push button is pressed. By providing a surface, when excessive operating force is applied to the push button, it is possible to prevent direct force from being applied to the substrate, and to enlarge the button operating surface, share the frame, and simplify the component configuration Can be achieved.

According to a third aspect of the present invention, there is provided a push button device in which a push button is rotatably mounted on a housing and an internal switch can be operated, and is provided on the push button and engages with the housing. A claw portion, a button hole provided in the housing and a part of the push button is exposed when the push button is mounted, and a contact hinge portion provided near the button hole and a back surface of the push button abuts and flexes when the push button is pressed. When an excessive operation force is applied to the push button, it is possible to prevent the force from being directly applied to the substrate. Also, a hinge shape is formed on a part of this surface, and the operating force of the push button is increased by the back surface of the push button abutting on this hinge before the push button presses the switch, and the operating force is easily adjusted by the shape of the hinge. Erroneous operation can be prevented.

An embodiment of the push button device of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1A is an exploded perspective view showing the configuration of a push button device according to Embodiment 1 of the present invention, and FIG. 1B shows the configuration of the push button device according to the embodiment after assembly. FIG. 2 is a cross-sectional view showing a state where the push button according to the embodiment is attached to the housing; FIG. 3 is a cross-sectional view showing the operation state of the push button according to the embodiment; FIG. It is a rear view. In the drawing, reference numeral 10 denotes a frame of a device main body operated by the present apparatus, 1 denotes a board fixed to the frame 10 and various electronic components are mounted on an upper surface thereof, 6
Is a housing which is an exterior part of the device main body, 7 is a boss provided on the back side of the housing 6, 3 is a screw for fixing the housing 6 to the boss 7, and 9 is a button hole provided on the housing 6. , At least push button 4
The opening is larger than the outer shape of. Reference numeral 4 denotes a push button which is mounted on the inside of the housing 6 and a part of which is exposed to the outside of the housing via the button hole 9; 4a, a projection provided on the back surface of the push button 4 for pressing the switch 2; And a hinge part 5 provided between the pin 8 and a part of the push button 4 so that the push button 4 bends when the push button 4 is pressed. When the push button 4 is displaced,
A contact surface provided in the button hole 9 so that the back surface of the push button 4 contacts when the push button 4 is pressed;
Reference numeral 12 denotes a claw portion provided at the lower end of the rear surface of the push button 4, which engages with the inner end of the button hole 9 when the push button 4 is mounted on the housing 6.

The operation of the push button device of the present embodiment configured as described above will be described below.

The push button 4 having the hinge portion 5 is fixed to the rear side surface of the housing 6 by welding or press-fitting with a pin 8 so that the button operation portion of the push button 4 projects from the button hole 9.
At this time, as shown in FIG. 2, the push button 4 is attached to the housing 6 by tilting the push button 4 obliquely from the front side of the button hole 9 of the housing 6 as shown in FIG. Through. Then, the push button 4 is moved as shown by the arrow B, and FIG.
The mounting of the push button 4 is completed by attaching the tip of the push button 4 to the pin 8 and engaging the claw portion 12 with the lower rear end of the button hole 9 as shown in FIG. After that, the substrate 1 on which the switch 2 is mounted is fixed to the boss 7 on the back surface of the housing 6 with screws 3.

The push button 4 thus mounted on the housing 6
Will be described below. As shown in FIG. 3, when the push button 4 is pressed in the direction of arrow C, the push button 4 bends at the hinge 5, and the protrusion 4 a provided on the back surface of the push button 4.
Presses the switch 2. At this time, the back surface of the push button 4 contacts the contact surface 11 provided in the back of the button hole 9.

As described above, according to the present embodiment, when the push button 4 is pressed, the back surface of the push button 4 comes into contact with the contact surface 11 provided in the back of the button hole 9, so that the push button 4 When a pressing force is applied, it is possible to prevent a direct force from being applied to the substrate 1. Further, the deformation of the push button 4 toward the front of the housing 6 can be prevented by the claw portion 12 provided on the push button 4.

(Embodiment 2) FIG. 4A is an exploded perspective view showing a configuration of a push button device according to Embodiment 2 of the present invention.
FIG. 2B is a cross-sectional view of the pushbutton device after assembly according to the embodiment. In FIG. 4, the same components as those in the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted. The configuration different from the first embodiment is that the contact portion 12 in the first embodiment is replaced with a contact hinge portion 13. The contact hinge portion 13 has a shape as shown in FIG. 4, and has a projection 13a at the tip.

The operation of the push button device of the present embodiment configured as described above will be described below.

The method of mounting the push button 4 on the housing 6 is performed in the same manner as in the first embodiment, and a description thereof will be omitted. The operation when operating the push button 4 mounted on the housing 6 will be described. As shown in FIG. 4B, the push button 4 is
When the push button 4 is pressed in the direction, the push button 4 bends at the hinge portion 5, and the back surface of the push button 4 first contacts the projection 13 a of the contact hinge portion 13. When the push button 4 is pressed as it is, the push button 4 presses the projection 13a on the back surface, and the contact hinge portion 13 bends in the direction of arrow E. At this point, the push button 4 comes into contact with the contact hinge portion 13, so that a force for pressing the push button 4 is further required. By further pressing in the direction of arrow D, the push button 4
The convex portion 4a provided on the rear surface of the switch presses the switch 2.

As described above, according to the present embodiment, by providing the contact hinge 13 at the back of the button hole 9 of the housing 6,
When the push button 4 is pressed, the back surface of the push button 4 comes into contact with the projection 13a of the contact hinge portion 13, so that a greater pressing force is required to press the push button 4, and as a result, the push button 4 is inadvertently touched. In this case, it is possible to prevent the push button 4 from being operated erroneously. Further, it is possible to prevent the occurrence of problems such as cracking of the substrate and poor click.

[0021]

As described above, according to the present invention, a part of the push button hole of the housing is provided with a surface at a position recessed from the housing surface toward the switch, and the remaining push button hole is provided from the housing surface. When the pushbutton mounted after passing through is pressed down, the back surface of the pushbutton abuts on this surface, so that even when an excessive operating force is applied to the pushbutton, it is possible to prevent a direct force from being applied to the substrate.
Further, it is possible to increase the size of the button operation surface, share the frame, and simplify the component configuration. As another effect, a hinge shape is formed on a part of this surface, and the operating force of the push button is increased by the back surface of the push button abutting on this hinge before the push button presses the switch. The operating force can be adjusted quickly, and erroneous operations can be prevented.

[Brief description of the drawings]

FIG. 1A is an exploded perspective view showing a configuration of a push button device according to a first embodiment of the present invention. FIG. 1B is a sectional view of a main part showing a configuration of the push button device according to a first embodiment of the present invention.

FIG. 2 is an essential part cross sectional view for explaining the mounting operation of the push button device in the embodiment.

FIG. 3 is an essential part cross sectional view for explaining the operation of the push button device in the embodiment.

FIG. 4 (a) is an exploded cross-sectional view illustrating a configuration of a push button device according to a second embodiment of the present invention. (B) is a cross-sectional view of a main part illustrating a configuration of the push button device of the second embodiment of the present invention.

FIG. 5 is a rear view of the push button device according to the present invention.

6A is an exploded perspective view showing a configuration of a conventional push button device. FIG. 6B is a sectional view of a main part showing a configuration of a conventional push button device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Switch 3 Screw 4 Push button 5 Hinge part 6 Housing 7 Boss 8 Pin 9 Button hole 10 Frame 11 Contact surface 12 Claw part 13 Contact hinge part

Claims (3)

[Claims] 1. A push button device capable of operating an internal switch by rotatably mounting a push button on a housing, comprising: a claw portion provided on the push button and engaging with the housing; A button hole provided to expose a part of the push button when the push button is mounted, and a contact surface provided in the vicinity of the button hole and in contact with a back surface of the push button when the push button is pressed. Push button device. 2. The push-button device according to claim 1, wherein the contact surface is provided at a position where the back surface of the push button comes into contact when the push button is fully depressed. 3. A push button device capable of operating an internal switch by rotatably mounting a push button on a housing, a claw provided on the push button and engaging with the housing, A button hole provided to expose a part of the push button when the push button is provided, and a contact hinge portion provided near the button hole and a back surface of the push button abutting and flexing when the push button is pressed. A push button device characterized by the above-mentioned.