Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1978-05-17
1979-12-11
Hornsby, Harvey C.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
A62B 3502, B65H 7548
Patent
active
041779622
ABSTRACT:
This invention relates to winding-in devices for automobile safety belts of the kind having a shaft, rotatably mounted in a housing to receive the safety belt, which is withdrawable, and having locking means by which said shaft is locked against further rotation in the withdrawal direction when a predetermined limiting level of angular acceleration is exceeded, and further having an inertia body, rotatable on and with said shaft, which, when said limiting level is exceeded, lags behind the rotary movement of said shaft in opposition to the effect of spring means which connect it to said shaft, in order to bring a least one locking pawl, which is mounted to pivot in a flange on said shaft, into engagement with a ring of teeth secured to said housing via a cam track.
According to the invention, the locking pawl is inset in the flange on the shaft, and is connected to said flange by means of a pivot mounting having a bearing means. Furthermore, the end region of the locking pawl opposite the pivot mounting carries an actuating pin parallel to the axis of the device which engages in an actuating slot in the inertia body, the slot forming the cam track. Each actuating slot may follow a path along an arc of a circle eccentric to the inertia body.
REFERENCES:
patent: 3787002 (1974-01-01), Hayashi et al.
patent: 3905562 (1975-09-01), Kell
patent: 4083512 (1978-04-01), Rumpf
Hornsby Harvey C.
Jillions John M.
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