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:
Mar. 16, 2010
Filed:
Jan. 16, 2007
Akira Terao, Ama-gun, JP;
Shin Ota, Inazawa, JP;
Akira Terao, Ama-gun, JP;
Shin Ota, Inazawa, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A button-hole earn is mounted on a pattern selection cam shaft for mounting a pattern selection cam, the pattern selection cam shaft provided independently of a pattern cam shaft provided with a needle swing cam group. The rotation of a sewing machine main shaft causes rotation of a drive gear which in turn rotates a first follower gear in engagement with the drive gear and a second follower gear engaged with the first follower gear. Thus, the rotation of the first follower gear causes rotation of the needle swing cam group whereas the rotation of the second follower gear causes rotation of the button-hole cam. Thus, a pattern selected among a plurality of patterns by a pattern selection dial is generated to form button-hole stitches selected by the pattern selection dial.