US 5,878,480 A · Method of assembling a brush holder assembly

Abstract

A brush holder apparatus and method for biasing a brush outwardly of a brush box. A brush box cover is slidingly disposed over an electrical cable along with a coil spring. Next, a brush shunt is electrically secured to an end portion of the electrical cable by a crimp member. The brush box cover is then slidably urged towards a brush secured at a terminal end of the brush shunt. This causes the brush shunt to be folded so as to place it in general longitudinal alignment and parallel with the electrical cable. The brush box cover is then further slid along the electrical cable, thus urging the spring over the brush shunt and into engagement with the brush electrically secured at the terminal (i.e., outer) end portion of the brush shunt. The brush box cover is further slid along the electrical cable until the crimp member and a portion of the brush shunt become wedgingly engaged in a portion of the brush box cover, to thereby hold the spring in a compressed condition between the brush box cover and the brush. Accordingly, there is no need to first compress the spring and hold the spring compressed while the brush shunt is attached to the electrical cable. The apparatus and method significantly eases the manner in which a brush holder may be assembled.

Claims23

Dependent claims

A method for assembling a brush holder assembly, said method comprising:

providing an electrical cable;
disposing a brush box cover slidably along said electrical cable towards a first end portion of said electrical cable;
disposing a biasing member over said electrical cable in between said brush box cover and a second end portion of said electrical cable;
using a crimp member to electrically secure a brush shunt to said second end portion of said electrical cable;
manually sliding said brush box cover against said biasing member toward said second end portion to thereby cause said brush shunt to be folded to extend generally parallel to said electrical cable;
further urging said brush box cover along said electrical cable until said biasing member is compressed between said brush box cover and a brush member secured at a terminal end of said brush shunt;
causing a portion of said crimp member to be wedgingly engaged within a portion of said brush box cover to thereby hold said biasing member in a compressed position;
and
releasably securing said brush box cover to a brush box.

6 more elements

Dependencies are inferred from the claim text.

Method of assembling a brush holder assembly

Life of this patent

Method of assembling a brush holder assembly

Life of this patent

Abstract

Claims23