Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1982-07-22
1984-02-14
Levy, Stuart S.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
297478, 280806, 188 8277, A62B 3500, B65H 7548, F16D 6300
Patent
active
044311451
ABSTRACT:
An emergency locking device equipped with a safety belt retractor wherein a reel (2) for winding a safety belt (1) thereon is rotatably mounted on a fixed reel support (4) with a shaft (3) fixed to the reel (2) being journaled on the support (4), and the reel (2) is biased to rotate in a belt rewinding direction by a return spring (5). In order to initiate the locking operation of the emergency locking device, there are provided a locking initiating member (21) fixedly mounted on the shaft (3) and an inertia plate (17) rotatably mounted on the shaft (3). The locking initiating member (21) is provided with a gear (21a) on its outer peripheral surface. A locking transmission pawl (19) is mounted rotatably about an axis (18) on the inertia plate (17). The locking transmission pawl (19) is provided with a gear (22) which is engaged with the gear (21a). The movement of the locking initiating member (21) is transmitted to the locking transmission pawl (19) by gears (21a, 22), the locking transmission pawl (19) is then engaged with one of a number of inner ratchet teeth (14) of a drum-shaped clutching wheel (12) whereby the rotation of the shaft (3) is transmitted to the clutching wheel (12), which moves a locking pawl (9) to engage a ratchet wheel (8) fixed to the reel (2), to prevent rotation of shaft (3) and thus the withdrawal of the safety belt (1).
REFERENCES:
patent: 3122339 (1964-02-01), Whittingham
patent: 3741496 (1973-06-01), Beller
patent: 3858824 (1975-01-01), Stephensen
Doigan Lloyd D.
Fasse W. G.
Kane, Jr. D. H.
Kassai Kabushikikaisha
Levy Stuart S.
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