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:
May. 15, 1990
Filed:
Jun. 21, 1989
Ikuo Tajima, Nagoya, JP;
Tomoaki Anezaki, Kasugai, JP;
Tokai Kogyo Mishin Kabushiki Kaisha, Kasugai, JP;
Abstract
A device for driving a thread take-up lever in a multi-head sewing machine having a plurality of sewing heads, one or more thread take-up levers each mounted on a respective head, and a main shaft for driving the heads. The device comprises a movement converting mechanism located within each head for converting rotational movement of the main shaft into reciprocating movement thereof, a transmission control mechanism operatively associated with the movement converting mechanism for transmitting and disconnecting the reciprocating movement produced by the movement converting mechanism to one of the thread take-up levers selected for sewing operation, and a retaining mechanism for retaining the selected take-up lever in a predetermined position when the reciprocating movement of the movement converting mechanism is disconnected from the selected take-up lever by the transmission control mechanism.