Wind-up roller for safety belts

Details Wind-up roller for safety belts Wind-up roller for safety belts

1977-12-27

1980-01-15

Hornsby, Harvey C.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421074R, B65H 7548, A62B 3500

Patent

active

041834763

ABSTRACT:
A safety belt wind-up roller includes a winding shaft for a safety belt, a rewind spring operatively connected to the winding shaft for rewinding the safety belt after it has been withdrawn, a compensating device for equalizing the restoring force of the rewind spring as the restoring force increases with increasing withdrawal of the safety belt, and a coupling member operatively associated with the winding shaft for rotation therewith, and the compensating device has a compensating member in the form of a roll spring mounted axially parallel to the winding shaft and having a radially outer end forcibly engageable with the coupling member during rotation of the winding shaft over a predetermined rotary angle as the safety belt is being rewound.

REFERENCES:
patent: 3984063 (1976-10-01), Knieriemen
patent: 4026494 (1977-05-01), Tanaka
patent: 4081153 (1978-03-01), Tanaka et al.

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