Brush type small motor having non-linear spring device

Details Brush type small motor having non-linear spring device Brush type small motor having non-linear spring device

2007-07-31

2007-07-31

Schwartz, Christopher P. (Department: 3683)

Spring devices

Vehicle

Mechanical spring and nonresilient retarder

C267S170000, C267S174000

Reexamination Certificate

active

10666047

ABSTRACT:
A spring device consists of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a liner spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance between the right and left side plates of the spring case is set a little larger than an outer diameter of the coil spring. A distance between the back and front side pates of the spring case is set about 1.5 to 2 times larger than the outer diameter of the coil spring, and a length of the spring case is set smaller than a free length of the coil spring. The coil spring is deformed and a non-linear spring property is obtained when the coil spring is urged through the spring urging member.

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