Webbing retractor

Details Webbing retractor Webbing retractor

1999-07-20

2000-11-28

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 2246

Patent

active

061523917

ABSTRACT:
A plurality of protrusions are formed on an inner peripheral portion of a bearing main body that supports a large diameter shaft portion of a take-up shaft. These protrusions are in line contact with an outer peripheral portion of the large diameter shaft portion, which allows the bearing main body to support the large diameter shaft portion indirectly via the protrusions. As the protrusions are in line contact with the large diameter shaft portion, the contact area is very small and the frictional resistance between the protrusions and the large diameter shaft portion causes the protrusions to undergo plastic deformation easily. Thus, the resistance that hinders the rotation of the large diameter shaft portion is decreased and a share that is served for the rotation of the take-up shaft by the pressure of gas is increased, thereby providing a webbing retractor that can serve efficiently for taking up a webbing belt.

REFERENCES:
patent: 5624083 (1997-04-01), Modinger et al.
patent: 5842344 (1998-12-01), Schmid
patent: 5906327 (1999-05-01), Chamings

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