JPH0587778U - Key top structure for directional switches - Google Patents

Abstract

(57) [Summary] (Modified) [Objective] The present invention relates to a key top structure for a directional switch used in a video game device or a portable electronic game device, and more particularly to the video game device or the portable electronic game device. The operability in key operation for designating the moving direction of the display character etc. is smoothed to reduce wear, improve the responsiveness of the directional switch and further improve the durability of the directional switch. . A recess having a spherical surface is formed at a lower center of a bottom surface of a key top member 2 which is partially exposed through an opening of a housing 1, and a recess 12 having a spherical surface is formed at an upper side of a bottom surface of the housing 1. The key top structure for a directional switch is configured so that the key top member 1 is supported by the ball bearing 3 via a ball bearing 3 fitted to 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a key top structure for a directional switch used in a video game device or a vattable electronic game device, and more particularly to a key for designating a moving direction of a display character or the like in the video game device or the vattable electronic game device. The operability in operation is smoothed to reduce wear, improve the responsiveness of the directional switch, and further improve the durability of the directional switch.

[0002]

[Prior Art]

 Conventionally, a directional key or the like used in a video game device or a batterable electronic game device has a key top integrally formed, and a tip end portion in the center of the bottom surface thereof has a spherical shape, and the spherical portion serves as a fulcrum. Those that are designed to operate key tops are widely used.

[0003]

[Problems to be solved by the device]

 The directional keys used in the above-mentioned conventional video game devices and vattable electronic game devices have a key top integrally formed, and a tip end at the center of the bottom surface is projected spherically, and a seesaw type is used as a fulcrum. Since the key top is operated, the frictional resistance between the spherical protrusion and the support is large, and it is frequently used, so that it is worn a lot and the durability of the directional key is low.

[0004]

[Means for Solving the Problems]

 The present invention was devised to solve the above-mentioned conventional problems, and a recess having a spherical surface is formed in the lower center of the bottom surface of the key top member that exposes a part from the opening of the housing. In the key top structure for a directional switch, a concave portion having a spherical surface is formed on the upper side of the bottom surface of the key top member, and the key top member is supported by the ball bearing via ball bearings fitted in the both concave portions. is there.

[0005]

[Action]

 In the key top structure for a directional switch of the present invention, since the key top member is supported by the ball bearing, the frictional resistance at the time of key operation is small and the key operation can be performed smoothly.

[0006]

【Example】

 Hereinafter, the configuration of the present invention will be described with reference to the drawings. 1 shows an embodiment of the present invention, FIG. 1 is an exploded perspective view of an essential part of a key top structure for a directional switch of the present invention, and FIG. 2 is a longitudinal sectional view.

The upper part of the key top member 2 is exposed from the opening 11 of the housing 1, and the lower part of the key top member 2 is housed in the housing 1 and supported by the ball bearing 3. That is, a concave portion 21 having a spherical surface is formed in the lower center portion of the bottom surface of the key top member 2, and a concave portion 12 having a spherical surface is formed on the upper surface of the bottom surface of the housing 1, and the concave portions 21 and 12 are both formed. The key top member 1 is supported by the ball bearings 3 via the ball bearings 3 that are fitted together.

Rubber contact points 4 corresponding to four directions are arranged on the bottom surface of the key top member 2, and electrodes (not shown) corresponding to the rubber contact points 4 are formed on the substrate 5. When the key top member 2 is pressed in any direction, the electrodes are electrically connected in correspondence with the pressing direction.

[0009]

[Effect of the device]

 Since the present invention has the configuration as described above, the operator is particularly interested in the directional switch for designating the moving direction of the display character or the like in the video game device or the portable electronic game device. The key top structure for a directional switch of the present invention has a key top member supported by a ball bearing, so there is little frictional resistance during key operation, and key operation is possible. Can be done smoothly, and has the effect of improving the durability of the directional switch.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a main part.

FIG. 2 is a vertical sectional view.

[Explanation of symbols]

 1. Housing 11. Opening 12. Recess 2. Key top member 21. Recess 3. Ball bearing 4. Rubber contact 5. substrate

Claims (1)

[Scope of utility model registration request] 1. A recess having a spherical surface is formed at a lower center of a bottom surface of a key top member, a part of which is exposed through an opening of a housing, and a recess having a spherical surface is formed at an upper side of a bottom surface of the housing. A keytop structure for a directional switch, wherein the keytop member is supported by the ball bearing through a matching ball bearing.