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:
Nov. 28, 1989
Filed:
Feb. 10, 1989
Nobusuke Nagasaka, Haguri, JP;
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
A needle clamp includes a clamp screw, a square nut member having a threaded hole engageable with the clamp screw, and a needle clamp body having a first hole for receiving plural needles arranged in side-by-side relationship in a first direction within a predetermined plane, a second hole formed so that the clamp screw may move therein in the first direction, and a square cavity formed so that the nut member may move therein in the first direction. The cavity includes a pair of opposite internal walls which prevent the nut member from rotating about an axis of the clamp screw by engaging with corners of the nut member, and a third internal wall which prevents the nut member from moving away from the needles arranged in the first hole by engaging with a surface of the nut member opposite to a surface facing the arranged needles. Consequently, when the clamp screw is tightened within the threaded hole of the nut member, a conical end portion of the clamp screw is automatically positioned at the middle position between two adjacent needles, so that the needles are simultaneously firmly attached to the needle clamp body. When the clamp screw is loosened, the nut member is prevented from falling off or from blocking the insertion of needles by means of its engagement with the clamp screw.