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.

Date of Patent:
Mar. 09, 2021

Filed:

Dec. 19, 2017
Applicant:

Acb, Nantes, FR;

Inventors:

Benoit Bourriau, Saint Philbert de Grand Lieu, FR;

Julien Clergeau, La Chapelle sur Erdre, FR;

Assignee:

ACB, Nantes, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 25/00 (2006.01); B21D 25/04 (2006.01);
U.S. Cl.
CPC ...
B21D 25/00 (2013.01); B21D 25/04 (2013.01);
Abstract

Disclosed is a machine for forming sheets by longitudinal stretching, the machine includes: two stretch heads located on either side of a forming tool for the sheet, the stretch heads each including a line of grippers integral with a support structure which is associated with way of stretching and which is mounted on a chassis by the intermediary of a tipping axis; at least one tipping cylinder being inserted between the chassis and the support structure, in order to allow for the maneuvering in rotation of the support structure about the tipping axis; and the chassis being carried by a support frame. The stretching machine includes a unit, inserted between the support frame and the chassis, arranged to allow for an adjusting of the vertical positioning of the tipping axis.


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