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Patent Searching and Data


Title:
DC MOTOR WITH BRUSH
Document Type and Number:
Japanese Patent JP2014108001
Kind Code:
A
Abstract:

To provide a DC motor with brush capable of avoiding generation of short circuits between commutator segments even after a brush is worn.

The DC motor with brush includes a rotating shaft 20, a plurality of commutator segments 72(1)-72(6) arranged in the peripheral direction of the rotating shaft 20, and a brush 90 coming into contact with the commutator segments 72(1)-72(6) to supply an electric current. The brush 90 includes a spring material 91 and a contact material 72 coming into the commutator segment. The brush 90 has an arc-shaped contact faces with the commutator segments 72(1)-72(6).


Inventors:
Kuroda, Minoru
Komura, Atsushi
Application Number:
JP2012000260957
Publication Date:
June 09, 2014
Filing Date:
November 29, 2012
Export Citation:
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Assignee:
MINEBEA CO LTD
International Classes:
H02K13/00; H01R39/18; H02K23/00
Domestic Patent References:
JPS6295473U1987-06-18
JPH0480273U1992-07-13
JPH05258637A1993-10-08
JP2001339914A2001-12-07
JPS569874U1981-01-28
Foreign References:
US20010006315A12001-07-05
Attorney, Agent or Firm:
坂本 智弘