Sega Enterprises, Ltd.

Funai Electric Company Ltd.

Kowa Company Limited

Yasuo Takasu

Toshinori Date

Kazunori Matsumura

Moriyasu Yoshitake

Nozomu Toriba

Norio Fukuoka

Retinal camera

Video disk recorder

A control key device includes a casing having a generally dome-shaped portion provided at an arbitrary part of the casing, the dome-shaped portion having a top surface and a hole provided at a central part of the dome-shaped portion, a substrate provided within the casing and having a plurality of electrical contacts, a resilient member provided on the substrate and having a plurality of bulges at positions corresponding to the electrical contacts of the substrate, each of the bulges having an electrically conductive portion which makes electrical contact with a corresponding one of the electrical contacts when the bulge is resiliently deformed, a contact pressing member provided on the resilient member and having a plurality of legs at positions corresponding to the bulges of the resilient member, and a key secured on the contact pressing member via the hole in the dome-shaped portion of the casing, the key having a home position and a tilted position. One of the legs of the contact pressing member resiliently deforms a corresponding one of the bulges of the resilient member to achieve electrical contact between the electrically conductive portion of the corresponding one bulge and a corresponding one of the electrical contacts of the substrate in the tilted position of the key, and the key has a sliding surface which makes sliding contact with the top surface of the dome-shaped portion of the casing when tilting from the home position to the tilted position.

Control key multiple electrical contact switching device

A control key device having a contact member which comprises at least a first and second contact portion such that when an operating force is applied to the first contact portion the second contact portion is caused to touch the first contact portion so that predetermined electrical contact is established. The causing of the second contact portion touching the first contact portion results from an operating force elastically transforming the shape of the contact member. A tilting mechanism is provided by a guiding member of predetermined shape having a through hole. The tilting mechanism functions to tilt the contact member in response to an operating force applied to the contact member. The contact member has a key portion and a pad portion defining a home position and a tilted position.

Multiple circuit switch with improved multiposition for joypad actuator

Growing community of inventors

Tokyo, Japan

Yasuo Takasu