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:
Feb. 19, 1991
Filed:
Feb. 22, 1990
Jean P Treillet, Boulogne-Billancourt, FR;
Amada, Saint-Denis, FR;
Abstract
A bending-press tool can be fixed instantaneously on its tool-holder by means of a device which permits positioning and extraction of the tool on the front side of the machine without any need to displace adjacent tools. The device comprises a clamping member pivotally mounted on a longitudinal shaft and having a shouldered portion, the heel of the tool which has a suitable shape being intended to engage on the shouldered portion. After engagement, the tool is thrust from its position of equilibrium towards the rear, causes rotational displacement of the clamping member and of a locking cam which has the effect of applying the clamping member on the tool in the work position. In order to unclamp the tool, it is only necessary to withdraw the cam. The tool then remains engaged and can be extracted by pivotal displacement in the forward direction.