JPH0617072U - Control key mechanism - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] The present invention relates to a control key mechanism used in a video game device or a portable electronic game device, and more particularly, to a moving direction of a display character or the like in the video game device or the portable electronic game device. The key operation for designating can be operated with an extremely light touch. A shaft portion 83 of a top-shaped component 8 is inserted and fixed in a lower hollow portion 7 of a key top member 2 which is partially exposed through an opening 11 of a housing, and a contact pressing portion 82 of the top-shaped component 8 is
82 is in contact with the elastic body 4 fixed to the lower surface of the substrate 3 from below, and is formed into a spherical surface below the top 8 by the pressing operation of the key top member 2. The contact portion between the lower central protruding portion 81 and the support portion 6 formed integrally with the bottom case 5 serves as a fulcrum, and the contact pressing portion 82 of the top-shaped component 8 holds the elastic body 4 fixed to the lower surface of the substrate 3. It is configured to be pressed from below.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a control key mechanism used in a video game device or a portable electronic game device, and particularly, a key operation for designating a moving direction of a display character or the like in the video game device or the portable electronic game device. It can be operated with a light touch.

[0002]

[Prior art]

 Conventionally, directional keys and the like used in video game devices and portable electronic game devices have a hemispherical tip at the center of the bottom formed integrally with the key top. The lower surface of the disk portion integrally formed with the key top is placed on the elastic holding member so that a minute gap is always present between the substrate and the substrate. When the key top is pressed in a certain direction, the tip of the spherical part and the substrate come into contact with each other to form a fulcrum, and the conductive rubber formed on the lower surface of the holding part corresponding to the pressed part is the substrate. The upper electrode is electrically short-circuited to form a circuit.

[0003]

[Problems to be solved by the device]

 In the directional key used in the conventional video game device or portable electronic game device as described above, there is always a minute gap between the substrate and the tip of the center of the bottom surface of the integrally formed key top member. The lower surface of the disk part, which is formed integrally with the key top, is placed on the elastic holding member, and the tip of the spherical part and the substrate contact only when the key top is pressed in a certain direction. To form a fulcrum, and the conductive rubber formed on the lower surface of the holding portion corresponding to the pressed portion electrically short-circuits the electrodes on the substrate to form a circuit. Every time the key top was operated, an excessive impact force of the spherical tip was applied to the board. As a result, wear was severe and excessive impact force could cause failure.

[0004]

Means for Solving the Problems The present invention was created in order to solve the above-mentioned conventional problems, and a frame is formed in the lower hollow portion of the key top member that is partially exposed from the opening of the housing. The shaft part of the mold part is inserted and fixed, and the contact pressing part of the top part is abutted from below against the elastic body fixed to the lower surface of the substrate, and the key top member is pressed. By the pressing operation, the contact portion between the lower central protruding portion formed on the spherical surface below the coma-shaped component and the support portion integrally formed with the bottom case serves as a fulcrum, and the contact pressing portion of the coma-shaped component serves as the substrate. A control key mechanism characterized in that an elastic body fixed to the lower surface is pressed from below.

[0005]

[Action]

 According to the control key structure of the present invention, the contact pressing portion of the coma-shaped component is in contact with the elastic body fixed to the lower surface of the substrate from below, and the lower center formed on the spherical surface under the coma-shaped component. The contact portion between the protruding portion and the support portion formed integrally with the bottom case serves as a fulcrum, and the contact pressing portion of the top-shaped component pushes the elastic body fixed to the lower surface of the substrate from below. Therefore, it can be operated with an extremely light touch, and because of this structure, excessive force is not directly applied to the substrate, so it has excellent durability.

[0006]

【Example】

 1 is a plan view of a control key mechanism of the present invention, and FIG. 2 is an enlarged sectional view taken along line AA of FIG. The shaft portion 83 of the commercial type component 8 is inserted and fixed in the lower hollow portion 7 of the key top member 2 which is partially exposed from the housing opening 11, and the contact pressing portions 82, 82 of the top type component 8 are fixed. Is in contact with the elastic body 4 fixed to the lower surface of the substrate 3 from below.

When the key top member 2 is pressed, the contact portion between the lower central protruding portion 81 formed on the spherical surface below the top 8 and the support portion 6 formed integrally with the bottom case 5 serves as a fulcrum. The contact pressing portion 82 of the top type component 8 presses the elastic body 4 fixed to the lower surface of the substrate 3 from below.

Therefore, if one of the upper, lower, left and right sides of the key top member 2 is pressed, the contact pressing portion 82 at the position opposite to the pressing direction is pressed, the contact 41 is pressed, and the circuit on the substrate 3 (FIG. (Not shown) is configured to be conductive. Moreover, since the operation can be performed with an extremely light touch, the operation in each direction can be easily performed by applying a slight force in the central portion of the key top member 2 vertically and horizontally.

[0009]

[Effect of device]

 Since the present invention has the configuration as described above, it is possible to operate the key operation for designating the moving direction of the display character or the like particularly in the video game device and the portable electronic game device with an extremely light touch. effective. Further, according to the control key structure of the present invention, the contact pressing portion of the coma-shaped component is in contact with the elastic body fixed to the lower surface of the substrate from below, and is formed in a spherical surface below the coma-shaped component. The contact portion between the lower central protruding portion and the support portion formed integrally with the bottom case serves as a fulcrum, and the contact pressing portion of the top-shaped component presses the elastic body fixed to the lower surface of the substrate from below. Since the key top member 2 can be operated with an extremely light touch, it is possible to easily operate the key top member 2 in the respective directions by applying a slight vertical or horizontal force. Further, according to this structure, since an excessive force is not directly applied to the substrate, it has excellent durability.

[Brief description of drawings]

FIG. 1 is a plan view of a control key mechanism of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1. Housing 11. Housing opening 2. Key top material 3. Substrate 4. Elastic body 41. Contact point 5. Bottom case 6. Support part 7. Hollow part 8. Coma-shaped parts 81. Lower central protrusion 82. Contact pressing part 83. Shaft part

Claims (2)

[Scope of utility model registration request] Claim: What is claimed is: 1. An elastic member in which a shaft portion of a coma-type component is inserted and fixed in a lower hollow portion of a key top member which is partially exposed from an opening of a housing, and a contact pressing portion of the coma-type component is fixed to a lower surface of a substrate. A control key mechanism that is in contact with the body from below. 2. A pressing portion of the key top member serves as a fulcrum, and a contact portion between a lower central protruding portion formed on a spherical surface below the top-shaped component and a supporting portion integrally formed with the bottom case serves as a fulcrum. 2. The control key mechanism according to claim 1, wherein the contact pressing portion of the top-shaped component presses the elastic body fixed to the lower surface of the substrate from below.