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. 16, 1989
Filed:
Jul. 08, 1988
Rainer Lohe, Gross-Zimmern, DE;
Abstract
In a sewing machine having a needle bar jogging frame in which a needle bar which can be driven with a reciprocating motion in its longitudinal direction is mounted, the jogging frame is in the form of a member of a parallel four-bar linkage. For this purpose the frame is mounted by way of a guide lever and a lever so as to be movable parallel to itself in the heat of the sewing machine. The lever and the guide lever are designed equal in length and arranged parallel to one another. This development creates a simply constructed jogging frame so that the needle bar and thus also the needle are always moved or displaced parallel to themselves in the jogging plane of the jogging frame, irrespective of the stitch length and irrespective of whether the sewing direction is forward or backward to produce lock stitches.