Sliding contact and method for producing the same

Details Sliding contact and method for producing the same Sliding contact and method for producing the same

2006-08-29

2006-08-29

Arbes, Carl J. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S874000, C029S878000, C029S879000, C219S121660, C219S121690

Reexamination Certificate

active

07096582

ABSTRACT:
The object is to provide a method of manufacturing a sliding contact which has a high yield of manufacturing sliding contacts and can positively make smooth the tip portion surface of a finger of a brush of a sliding contact. According to the invention, in a method of manufacturing a sliding contact having a metal brush, the tip portion of a finger12a′ of a sliding contact piece10′ is melted and thereafter the tip portion is solidified in a gas, whereby the surface of the tip portion is made smooth. For example, when a sliding contact is manufactured by blanking a metal sheet material, the tip portion of the finger12a′ of the brush12′ of the sliding contact piece10′ which is obtained by blanking is irradiated with a laser beam, whereby the tip portion is heated and melted. Then, a sharp portion and a burr which exist before melting disappear. When the tip portion of the finger12a′ is solidified in a gas after melting, a sliding contact having a brush provided with a finger whose tip portion surface is a smooth curved surface is manufactured.

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patent: 2001-351807 (2001-12-01), None
patent: 2002-52027 (2002-02-01), None

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