Patent ID: 6031313
Filing Date: 2000-02-29
Classification: H01R,H02K

Abstract:
A brush holder device, in which a brush is slidably inserted into a brush holder, an action-side end portion of a torsion spring is engaged with a torsion spring engaging groove recessedly provided in an end surface of said brush, on a side opposite to a commutator, and an elastic force of the torsion spring presses the brush against the commutator, characterized in that,a first inclined surface is formed to be inclined relative to a plane perpendicular to an axis of said brush, said axis to extend in a direction through the commutator,a second inclined surface is formed in said torsion spring engaging groove, an angle of the second inclined surface being larger than that of the first inclined surface relative to the plane perpendicular to the axis of said brush, andsaid action-side end portion of the torsion spring is engaged with the second inclined surface.