Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1983-01-24
1984-12-04
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421074B, A62B 3502, B65H 7548
Patent
active
044859864
ABSTRACT:
A retractor sensitive both to a rate of webbing withdrawal and to vehicle acceleration is disclosed. A reel for paying off and winding up the webbing is fixedly mounted on a rotary shaft sprung in a direction of webbing retraction. Mounted on an extension of the reel shaft is a locking mechanism including a locking ring which is cammed axially of the reel shaft extension for locking and unlocking the reel. A webbing sensor mechanism comprises a cam disc rotatably mounted on the reel shaft extension and normally engaged with the locking ring for joint rotation therewith, and an inertia member in the form of a heavy ratchet wheel also rotatably mounted on the reel shaft extension. The cam disc has eccentrically pivoted thereon a curved sensor arm which, upon rapid webbing extension, is pivoted by the ratchet wheel into engagement with one of ratchet teeth formed internally on a fixed housing. Thus set out of rotation, the cam disc causes the locking ring to lock the reel against rotation in the direction of webbing extension. A vehicle sensor mechanism includes a pawl capable of engaging the ratchet wheel in the event of excessive vehicle acceleration. On engagement with the pawl the ratchet wheel causes the sensor arm to arrest the rotation of the cam disc, again resulting in the lockup of the retractor.
REFERENCES:
patent: 4036322 (1977-07-01), Takada
patent: 4393995 (1983-07-01), Tukamoto
Adams Bruce L.
Burns Robert E.
Jillions John M.
Katsuyama Kinzoku Kogyo Kabushiki Kaisha
Lobato Emmanuel J.
LandOfFree
Emergency locking retractor for a seat belt assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Emergency locking retractor for a seat belt assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emergency locking retractor for a seat belt assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1578839