Safety tie-down roller

Details Safety tie-down roller Safety tie-down roller

1992-04-27

1994-05-24

Huppert, Michael S.

Freight accommodation on freight carrier

Particular article accommodation

Wheeled vehicle

410 12, 410103, B60P 3079

Patent

active

053142756

ABSTRACT:
A safety tie-down roller (1) has a spring laden ratchet pawl (9) positioned at an opposite side of structural framework (11) from a ratchet gear (8) and its related working conditions. A handle (33, 34, 35) is provided to release the ratchet pawl (9) against pressure of a spring (20, 37, 40, 42) for unloading cars and for straightening out chain to prevent loosening hazards. A wrench socket (45, 46, 51) is provided in addition to bar wrench apertures (15) for fast ratchet wrench rotation or optionally for motorized wrench rotation of the tie-down ratchet gear (8). Accurate torque control is made possible by the wrench sockets with either a hand torque wrench or a motorized torque wrench. Adapter plates (47, 49) are provided in addition to convenient forms of special hand wrenches (57, 58, 60). A non-lubricated hard bearing (26-29) for a tie-down rod (7) is attachable to car ramp structural members (12) of carrier vehicles (3, 4) without adversely affecting metal temper or causing distortion hard bearing surfaces (26, 27) from welding heat.

REFERENCES:
patent: 3157133 (1964-11-01), Wojcikowski
patent: 3187686 (1965-06-01), De Podesta
patent: 3589304 (1971-06-01), Haynes
patent: 3827662 (1974-08-01), Krokos
patent: 3860263 (1975-01-01), Taylor
patent: 4234166 (1980-11-01), Cederblad
patent: 4273484 (1981-06-01), Blanar
patent: 4273486 (1981-06-01), Tatina
patent: 5145299 (1992-09-01), Stephenson, Jr.
patent: 5156506 (1992-10-01), Bailey
patent: 5180262 (1993-01-01), Westerdale

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