Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1975-07-07
1978-08-01
Hornsby, Harvey C.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
188139, 200 6152, 200 6158B, 361142, A62B 3502, B65H 7548
Patent
active
041038428
ABSTRACT:
An emergency locking retractor system for storing a length of safety belt incorporates a sensor which includes a multi-directional pendulum device displaceable from its rest position by acceleration. Displacement of the pendulum is utilized to change the strength of an energy field imposed upon an electrical signal means. The output signal of the signal means responds to the change in the energy field imposed thereon and the changed signal is employed to activate solenoid switches which lock the retractor. The energy field source may be a magnet or a light source and the signal means then may include, respectively, a Hall device or a phototransistor. Movement of the pendulum from its rest position is utilized to move the magnet closer to or further from the Hall device, or to interpose a shield between the light source and the phototransistor, or to change the position of a reflector used to reflect light from the light source onto the phototransistor. The resultant change in output signal is employed to close a circuit which connects a power source to the locking medium.
REFERENCES:
patent: 2708966 (1955-05-01), Davis
patent: 3269685 (1966-08-01), Wallace
patent: 3601729 (1971-08-01), Hierta
patent: 3740000 (1973-06-01), Takada
patent: 3748415 (1973-07-01), Suzuki
patent: 3825205 (1974-07-01), Takada
patent: 3882337 (1975-05-01), Pfeffer et al.
patent: 3953084 (1976-04-01), Pittet et al.
Martin Thomas F.
Nagy James A.
Scibbe Harold R.
Hornsby Harvey C.
Jillions John M.
REPA Feinstanzwerk GmbH
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