The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2003
Filed:
Nov. 26, 2001
Shigeki Ishikawa, Nagano, JP;
Yoshio Yamada, Nagano, JP;
NHK Spring Co., Ltd., , JP;
Abstract
In order to make a conductive contact that is appropriate for fine pitching, without using a lead wire whose diameter is needlessly thin, a compressed coil spring and the shells and of needle-like elements and that are connected to the two ends of the coil are accepted into a through hole in an intermediate-layer member that is laminated with three layers in an axial direction. A holding hole is formed in a wiring plate that is laminated on the top face of an upper-layer member , and an approximately circular flat part that is formed at the end of a signal-transmitting lead wire is accepted in the holding hole of the wiring plate , and extraction of the flat part from the holding hole is prevented by making the lead-wire insertion hole narrower in diameter than the holding hole . Extraction of the flat part can be prevented by simple processing such that a flat-formed part is formed at one end of the signal-transmitting lead wire that connects with an outside circuit . In addition, the signal-transmitting lead wire does not have to be needlessly thin (i.e., it can be as thick as is necessary to transmit the signal), because a pipe-shaped connector does not need to be used, and that prevents an increase in the lead-wire resistance and makes possible fine pitching.