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:
Apr. 08, 1986

Filed:

Jul. 16, 1984
Applicant:
Inventors:

Kunio Takeda, Kawagoe, JP;

Nobuyoshi Nagatsuma, Kawagoe, JP;

Tetsuo Kannonji, Fujimi, JP;

Haruo Meguro, Sayama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K / ; B21D / ;
U.S. Cl.
CPC ...
72299 ; 72310 ; 72311 ; 72452 ; 72300 ; 29-6 ;
Abstract

A torsional molding apparatus for arranging each crank pin of a crank shaft at a predetermined angular position wherein a plurality of crank pins are arranged on the same plane passing through an axis of the crank shaft. The apparatus comprises posts on a fixed support bed, a vertically movable cushion bed, a vertically movable bed arranged above the cushion bed, a fixed lower mold and a fixed upper mold secured to the cushion bed and vertically movable bed, respectively, a rotatable lower mold and a rotatable upper mold rotatably carried on the cushion bed and vertically movable bed rotatably about the axis of the crank shaft, and arms integrally and outwardly projected from the rotatable lower mold and placed in abutment with the upper ends of the posts.


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