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:
May. 28, 2002

Filed:

Feb. 02, 2001
Applicant:
Inventors:

Hans-Toni Steffens, Erkelenz, DE;

Hans Zimmermann, Selfkant, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 1/500 ;
U.S. Cl.
CPC ...
B21D 1/500 ;
Abstract

The fixed roll apparatus ( ) of a fixed roll machine ( ) for crankshafts ( ) is constructed scissors-fashion. Two pivotable scissor arms ( and ) disposed opposite one another each bear a fixed roll head ( ) and a support roll head ( ) respectively. The support roll head ( ) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head ( ) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction ( ) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft ( ) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head ( ) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.


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