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:
Aug. 25, 1992

Filed:

Mar. 18, 1991
Applicant:
Inventors:

Arno Ebner, Ammerbuch, DE;

Helmut Ettischer, Ostfildern, DE;

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B27F / ; B27F / ;
U.S. Cl.
CPC ...
227129 ; 227131 ; 227154 ;
Abstract

A cam unit (3) with cams (3a, 3b and 3c) is mounted by journals (3d) directly on plastic housing portions (1 and 2). A bracket (5) which is actuated by cam (3a) is slidably arranged on one housing portion (2) together with a back-up (26) and a clincher unit (9, 10). A slider (8) shiftably mounted on bracket (5) actuates the clincher unit (9, 10) via a cam (3c). Another cam (3b) engages a sliding block (6) which operates a stapler (15 to 17). The entire stapling device is slidable along a driven profiled shaft (4) positively coupled with cam unit (3). The cams (3a, 3b, 3c) are designed such that, in relation to the journals (3d), two diametrically opposed force-transmitting cam sections of different cams (3a and 3b and 3c, respectively) each become effective at a time. Thus, a force of action in one direction, which is caused by one cam (3b and 3c, respectively), is counteracted by a force of reaction of equal strength in the other direction, which is caused by the other cam (3a and 3b, respectively). As a result, the bearing load on the journals (3d) is kept low throughout the stapling operation.


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