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US 6,556,033 B1Granted
Electroconductive contact unit assembly
AssigneeNHK Spring Co., Ltd.
InventorToshio Kazama
Life of this patent
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AssigneeNHK Spring Co., Ltd.
InventorToshio Kazama
Estimating the term…
An electroconductive contact unit which includes needle member guide holes formed in a plate made of high strength material such as metallic materials. The mechanical strength of the parts of the holder defining the needle member guide holes are increased in mechanical strength so that the positional precision of the tip of each electroconductive needle member can be improved. Forming an insulating film over the inner circumferential surface of each needle member guide hole, which guides the corresponding needle member, allows the needle member to be slidably disposed therein without breaking insulation. When the plate is made of electroconductive material, and an insulating film is formed over the outer surface of the holder as well as over the inner circumferential surface of each through hole, which guides the needle member and receives a coil spring therein, by grounding the plate, the electroconductive needle member and the compression coil spring inside each through hole are electromagnetically shielded, making them immune to noises.
An electroconductive contact unit assembly, comprising a holder for guiding an electroconductive needle member for contacting an object so as to be axially moveable into and out of a through hole, and a compression coil spring received in the through hole coaxially with respect to the electroconductive needle member so as to resiliently urge the electroconductive needle member out of the through hole, characterized by that:
An electroconductive contact unit assembly, comprising a holder for guiding an electroconductive needle member for contacting an object so as to be axially moveable into and out of a through hole, and a compression coil spring received in the through hole coaxially with respect to the electroconductive needle member so as to resiliently urge the electroconductive needle member out of the through hole, characterized by that:
An electroconductive contact unit assembly, comprising a holder for guiding an electroconductive needle member for contacting an object so as to be axially moveable into and out of a through hole, and a compression coil spring received in the through hole coaxially with respect to the electroconductive needle member so as to resiliently urge the electroconductive needle member out of the through hole, characterized by that:
Dependencies are inferred from the claim text.