Device for reversing rotational direction of a motor

Details Device for reversing rotational direction of a motor Device for reversing rotational direction of a motor

2008-04-08

2008-04-08

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S050000

Reexamination Certificate

active

07355314

ABSTRACT:
An electrical hand-held power tool (2) includes an electric motor (4) with a stator (12), and a device (26) for reversing the rotational direction of the motor (4) and which has a contact carrier (28) fixedly securable on the stator housing with a releasable connection element and having field contacts (32) electrically connectable with the stator winding (14), and fixed contacts (42a, 42b) electrically connected with the field contacts (32), with the reversing device (26) also including a brush carrier (30) provided with carbon guides (48) and switching contacts (52a, 52b) electrically connected with the carbon guides (48) and electrically connectable with the fixed contacts (42a, 42b) of the contact carrier (28), the brush carrier (30) being rotatable relative to the contact carrier (28), and the stator housing (16) having an axial stop for the brush carrier (30).

REFERENCES:
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patent: 6930431 (2005-08-01), Buck et al.
patent: 6998754 (2006-02-01), Nedriga et al.

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