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, 2012
Filed:
Jul. 31, 2009
Akie Shimizu, Nagoya, JP;
Hirokazu Hirose, Chiryu, JP;
Yuki Ihira, Kakamigahara, JP;
Yoshio Nishimura, Nagoya, JP;
Yoshinori Nakamura, Toyohashi, JP;
Akie Shimizu, Nagoya, JP;
Hirokazu Hirose, Chiryu, JP;
Yuki Ihira, Kakamigahara, JP;
Yoshio Nishimura, Nagoya, JP;
Yoshinori Nakamura, Toyohashi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A sewing machine including a needle bar; a sewing needle attached to the lower end of the needle bar; a needle bar drive mechanism vertically driving the needle bar; a presser foot capable of applying releasable pressure on a workpiece cloth and that releases the pressure to allow manual movement and sewing of the workpiece cloth; a regulatory needle including a tip and being capable of assuming a pierced state where the tip is pierced through the workpiece cloth and a non-pierced state, wherein the regulatory needle is moved along with the workpiece cloth while retaining the pierced state of the tip; a regulatory needle drive unit vertically driving the regulatory needle between the pierced state and the non-pierced state in coordination with vertical movement of the sewing needle; and a regulatory needle regulator limiting horizontal movement of the regulatory needle so as not to exceed a predetermined stitch pitch.