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:
Aug. 14, 1990
Filed:
Oct. 02, 1989
Hiroshi Kawazoe, Hirakata, JP;
Tokuhito Hamane, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A method of forming a coiled wire in an annular groove formed on an inner surface of a cylindrical member, comprising the steps of: holding one end portion of a wire discharged from a distal end of a feed nozzle; rotating the feed nozzle about one of a pair of connecting pins provided at one end of the cylindrical member so as to wrap the wire around the one connecting pin; retaining the wire by a hook pin in the vicinity of a point of intersection between the annular groove and an axial groove which extends from the one end of the cylindrical member so as to intersect with the annular groove; rotating the feed nozzle along the annular groove and pressing the wire against a bottom face of the annular groove by a roller at a position disposed downstream in a rotational direction of the feed nozzle so as to not only feed the wire to the annular groove but wind the wire in the annular groove through a predetermined number of turns; and wrapping the wire around the other connecting pin in a state where the wire is retained at the point of intersection by the roller.