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:
Aug. 18, 1992
Filed:
Apr. 22, 1991
Applicant:
Inventor:
Klaus Siegert, Sindelfingen, DE;
Assignee:
Maschinenfabrik Mueller-Weingarten AG, Weingarten, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 19 ; 72 21 ;
Abstract
A drawing device in a press is proposed which serves to draw shaped sheet-metal parts. In order to achieve optimum force support of the sheet holder (6), the pressure cheek (8) is regulated in a vertically adjustable manner by a four-point control system known per se. In addition to this, vertically adjustable bolts (7) having drives (15) are provided, in order to permit a specific local application of force to the sheet holder (6). This is controlled or regulated by displacement sensors (16) and force sensors (17).