Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1992-04-24
1993-08-03
Stodola, Daniel P.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421074A, 2421014B, B65M 7548
Patent
active
052321789
ABSTRACT:
A retractor including emergency locking mechanism including a ratchet plate mounted on a winding shaft onto and from which a webbing is wound and unwound, an inertia member which is turned in response to the rotation of the shaft, a latch member which is turned together with the shaft in a webbing pull-out direction so as to engage a pawl with the ratchet plate to lock the shaft to prevent it from being rotated in such a direction as to allow the webbing to be pulled out of the retractor, and a locking mechanism for coupling the latch member to the shaft when the turning of the inertia member lags behind that of the shaft; and a clamping mechanism for pinching the webbing between a swingable clamping engagement member and the inner surface of the base of the retractor so as to prevent the webbing from being pulled out of the retractor, wherein a control mechanism for either swinging the clamping engagement member in a webbing pinch direction so as to put the engagement member in a first position for preventing the webbing from being pulled out of the retractor, or putting the engagement member in a second position for allowing the webbing to be pulled out of the retractor includes a control plate turnable about the same axis as the ratchet plate and supporting the pawl in a swingable member, and a lever for putting the engagement member in the first or second position in response to the turning of the control plate.
REFERENCES:
patent: 4241886 (1980-12-01), Naekawa et al.
patent: 4249708 (1981-02-01), Asano
patent: 4437623 (1984-03-01), Wyder
patent: 4687253 (1987-08-01), Ernst et al.
patent: 4928902 (1990-05-01), Tsuji
patent: 5029769 (1991-07-01), Fohl
patent: 5127598 (1992-07-01), Fujimura
patent: 5137226 (1992-08-01), Fujimura et al.
patent: 5154368 (1992-10-01), Fujimura et al.
Hirata Kazumi
Komori Hiromichi
Sasaki Takanobu
Darling John P.
NSK Ltd.
Stodola Daniel P.
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