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:
Apr. 27, 1982
Filed:
Jan. 23, 1979
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A needle oscillating mechanism for use in a sewing machine is disclosed, wherein a rotatable cam member is provided for controlling the position of lateral oscillation of a needle, and a contact finger engaged with the cam member or disengaged therefrom synchronously with rotation of a main shaft of the sewing machine is coupled to the needle through a disconnectable coupling means. Disengagement of the contact finger from the cam member is not transmitted to the needle due to disconnection of the coupling means, so that the needle is held at the same lateral position by the action of brake means. Posterior to rotation of the cam member with the contact finger kept disengaged therefrom, engagement of the contact finger with the cam member is effected while causing connection of the coupling means, thereby shifting the needle to a lateral position in response to the cam surface of the cam member with which the contact finger is engaged.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile