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. 01, 1989
Filed:
Sep. 09, 1988
Yuji Nishimura, Niwa, JP;
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho, Aichi, JP;
Abstract
A webbing driving device which is capable of maintaining a constant gap or space between a wire and a sheet around the periphery of a drum. The webbing driving device includes a rotatable drum, a screw plate to which the wire is connected and is movable in the axial direction of the drum when rotated together with the drum, a wire driver for winding the wire around the drum in helical fashion, a first sloping surface formed on the screw plate parallel to the direction in which the wire is wound around the drum so as to define one end of the wire winding area and a second sloping surface formed parallel to the direction the wire is wound around the drum so as to define the other end of the wire winding area. The gap is formed by the first and second sloping surfaces. The gap between the wire and the two sloped surfaces is constant around the periphery of the drum, and the gap between the wire and the sheet can be set to a constant value around the periphery of the drum.