Clock spring

Details Clock spring Clock spring

1991-06-13

1992-07-07

Desmond, Eugene F.

Electrical connectors

With relatively guided members and intermediate pliable...

Relatively movable about axis

439 15, 439488, H01R 3500

Patent

active

051278413

ABSTRACT:
A clock spring used with, e.g., a steering apparatus of a motor vehicle to establish electrical connection between a stationary member and a movable member by using cables. The clock spring has a stationary member, a movable member fitted to the stationary member so as to be rotatable relative to the same, and a cable having a portion accommodated in a cable housing defined by the stationary and movable members. Two end portions of the cable are respectively fixed to the stationary and movable members and are led out of the cable housing. An improvement achieved by the invention resides in that the portion of the cable accommodated in the cable housing consists of a portion coiled on the stationary member, a portion coiled on the movable member in the direction opposite to the direction of coiling in the stationary member, and a turned portion connecting the coiled portions, and that a rolling member is provided which is pinched between the stationary and movable members and which serves as an indicator.

REFERENCES:
patent: 4789342 (1988-12-01), Shitanoki
patent: 4821016 (1989-04-01), Zeller et al.
patent: 4875860 (1989-10-01), Suzuki
patent: 4978191 (1990-12-01), Hasegawa et al.

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