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:
Jul. 05, 1994
Filed:
Jul. 09, 1992
Klaus Stutznacker, Frechen, DE;
Abstract
The invention concerns a sewing machine for a large-surface, frame-clamped material. Sewing machines for large-surface materials 39 clamped in a frame 38, 50 are known, wherein the material 39 is held in place in stationary manner in a sewing-machine structure 1, the sewing head together with the gripper box being displaceable longitudinally and transversely and frame-exchanging equipment being provided. In order to create a sewing machine with a much simplified design for the frame-exchanging equipment, the invention proposes that the frame-exchanging equipment be mounted in the vicinity of the sewing-machine structure 1 and comprise a conveyor of such design that following sewing, the frame 38 with the processed material 39 be forced out of the sewing-machine structure 1 and simultaneously the frame 50 with the material to be processed be pulled-in and be moved into the sewing position, and in that the two frames 38, 50 be moved overlapping one with the other during the exchange.