Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1975-01-31
1976-12-07
McCarthy, Edward J.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
B65H 2548
Patent
active
039957870
ABSTRACT:
An automatic locking safety belt rewind reel includes a U-shaped bracket supporting a shaft to which is affixed a spring rewound reel having a ratchet wheel end plate and a rockable ratchet wheel locking first pawl is spring biased out of engagement with the ratchet wheel. An internally toothed second ratchet wheel rockably mounted on the shaft is coupled to the first pawl. Carried by the shaft within the internal ratchet wheel is an inertia wheel carrying a second pawl and a cam wheel so related that rapid acceleration of the shaft causes a lag in the inertia wheel rotation, actuation of the two pawls and locking of the reel. In order to permit free unwinding of the reel, a frustoconical annular retractor member is axially movable toward and away from the path of a follower on the second pawl to respectively free and restrain the pawl in its disengaged position and the retractor member is spring biased to its retracted position and solenoid actuated to its advanced pawl retracting position.
REFERENCES:
patent: 3603525 (1971-09-01), Pringle
patent: 3819126 (1974-06-01), Stoffel
patent: 3897024 (1975-07-01), Takada
patent: 3907227 (1975-09-01), Takada
Takada, deceased Takezo
Takada, legal authorized heir by Juichiro
McCarthy Edward J.
Takata Kojyo Co. Ltd.
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