Metal working – Method of mechanical manufacture – Electrical device making
Patent
1983-11-17
1986-09-16
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Electrical device making
72354, 72370, H01R 4306
Patent
active
046113916
ABSTRACT:
A method for manufacturing commutator segmental rings, in which ring-shaped blanks (1) are transformed into commutator segmental rings. The method is carried out with a forming apparatus which uses a ring-shaped die (21) and a rib-forming die (25) to transform the blank (1) into a commutator segmental ring (2) with a flange (4) on its end and a shaft portion (3) with commutator segments (5) and cross pieces (7) connecting them. During the forming process, the die (25) moves against the force of an adjustable elastic counter-pressure apparatus (16; 13, 17, 19; 28). The counter-pressure on the facing side (24) of the upper punch (22), on which the die (25) fits, minimizes formation of a burr on the workpiece, and it permits use of a fastening means of reduced clamping power, thereby according the die (25) a greater pressure stability.
REFERENCES:
patent: 3423819 (1969-01-01), Carlson et al.
patent: 3608350 (1971-09-01), Yamaguchi
patent: 3664012 (1972-05-01), Wilke et al.
patent: 3708872 (1973-01-01), Ohuchi et al.
patent: 3768295 (1973-10-01), Cudzik
patent: 3958326 (1976-05-01), Matsumoto et al.
patent: 4299112 (1981-11-01), Kondo et al.
patent: 4463590 (1984-08-01), Theobald
Franz Peter
Ross Werner
Goldberg Howard N.
Gorski Joseph M.
Robert & Bosch GmbH
LandOfFree
Commutator ring manufacturing method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Commutator ring manufacturing method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Commutator ring manufacturing method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1989130