Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1983-11-15
1985-03-26
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421074B, 2421074C, A62B 3502, B65H 7548
Patent
active
045068445
ABSTRACT:
The main locking mechanism of an emergency locking retractor for a vehicle safety belt comprises teeth on the flanges of the spool on which the belt is wound, the spool being mounted in bearings arranged to permit limited movement in a direction perpendicular to the axis of rotation, between a position in which said teeth engage with complementary teeth on the frame of the retractor. In order to optimize the number of teeth which are in engagement with teeth on the frame when the spool is in its engaged position, the tips of the teeth on the frame members are located on a circle centered on the axis of the spool when the latter is in its released position and the locking face of each tooth facing away from the plane in which the axis of the spool moves between its engaged position and its released position is oriented at the same angle to the radial line from such tooth to the axis of the spool when in its engaged position as that between the locking face of each tooth on the discs and the corresponding radius thereof.
REFERENCES:
patent: 3237879 (1966-03-01), Whittingham
patent: 4350313 (1982-09-01), Adomeit
patent: 4470557 (1984-09-01), Ernst
Britax-Kolb GmbH & Co.
Jaekel Katherine
Jillions John M.
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