JPH0619238U - 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. [Structure] The key top accessory 8 is fixed below the key top member 2 which is partially exposed through the housing opening 11,
The contact pressing portion 82 of the key top accessory 8 is in contact with the elastic body 4 fixed to the lower surface of the substrate from below, and the key top accessory 2 is attached by pressing the key top component 2. The contact portion between the lower central protruding portion 81 formed in a hemispherical shape below the component 8 and the protruding portion 6 of the bottom case 5 serves as a fulcrum, and the contact pressing portion of the key top accessory 8 is
Reference numeral 82 is configured to press the elastic body 4 fixed to the lower surface of the substrate 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. When the spherical tip wears hard, it is easy for the circuit to enter the symmetrical directions such as top and bottom and left and right at the same time.

[0004]

[Means for Solving the Problems]

 The present invention was devised to solve the above-mentioned conventional problems, and a key top accessory is fixed below a key top member that is partially exposed from the opening of the housing. The contact point pressing part of the part is abutted from below against the elastic body fixed to the bottom surface of the board, and the pressing operation of the keytop part creates a hemispherical shape below the keytop accessory part. The contact portion between the formed lower central protrusion and the protrusion of the bottom case serves as a fulcrum, and the contact pressing portion of the key top accessory presses the elastic body fixed to the lower surface of the board from below. It is a control key mechanism characterized by.

[0005]

[Action]

 According to the control key structure of the present invention, the contact pressing portion of the key top accessory is brought into contact with the elastic body fixed to the lower surface of the substrate from below, and is formed in a hemispherical shape below the key top accessory. The contact portion between the lower central protruding portion and the protruding portion of the bottom case serves as a fulcrum, and the contact pressing portion of the key top accessory presses the elastic body fixed to the lower surface of the board from below. It can be operated with a 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 schematic plan view of the inside of a control key mechanism of the present invention, and FIG. 2 is an enlarged sectional view of the control key mechanism taken along line AA of FIG. A keytop accessory 8 is fixed by a screw 7 below the keytop member 2 which is partially exposed from the housing opening 11, and the head of the screw 7 is covered with the keytop accessory 8 and a central lower projection 81 is formed. Is fitted.

The contact pressing portions 82, 82 of the key top accessory 8 are in contact with the elastic body 4 fixed to the lower surface of the substrate from below, and by pressing the key top member 2, the key top accessory 8 is pressed. The contact portion between the lower central protruding portion 81 formed in the shape of a hemisphere below 8 and the protruding portion 6 of the bottom case 5 serves as a fulcrum, and the contact pressing portion 82 of the key top accessory 8 is fixed to the lower surface of the substrate 3. The elastic body 4 is pressed 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.

[0009]

[Effect of device]

 Since the present invention has the configuration described above, it is necessary to operate a key operation for designating a moving direction of a display character or the like in a video game device or a portable electronic game device with a touch with some strain. There is an effect that can be. Further, according to the control key structure of the present invention, the contact pressing portion of the key top accessory is brought into contact with the elastic body fixed to the lower surface of the substrate from below, forming a hemispherical shape below the key top accessory. The contact portion between the formed lower central protruding portion and the protruding portion of the bottom case serves as a fulcrum, and the contact pressing portion of the key top accessory presses the elastic body fixed to the lower surface of the substrate from below. Therefore, it can be operated with a touch that is somewhat rough, and because of this structure, excessive force is not directly applied to the substrate, so it has excellent durability.

[Brief description of drawings]

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

FIG. 2 is an enlarged cross-sectional view of the control key mechanism taken along the line AA in 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. Projection 7. Screw 8. Key top accessory 81. Lower central protrusion 82. Contact pressing part

Claims (2)

[Scope of utility model registration request] 1. An elastic body in which a key top accessory is fixed below a key top member which is partially exposed from an opening of a housing, and a contact pressing portion of the key top accessory is fixed to a lower surface of a substrate. A control key mechanism that is abutted from below. 2. The pressing operation of the key top component serves as a fulcrum at a contact portion between a lower central protrusion formed in a hemispherical shape below the key top accessory and a protrusion of the bottom case,
The control key mechanism according to claim 1, wherein the contact pressing portion of the key top accessory presses an elastic body fixed to the lower surface of the substrate from below.