Locking chock for tandem wheeled vehicles

Details Locking chock for tandem wheeled vehicles Locking chock for tandem wheeled vehicles

1995-01-23

1996-02-13

Butler, Douglas C.

Brakes

Vehicle

188 32, 188 74, B60T 104

Patent

active

054905826

ABSTRACT:
A locking wheel chock, for positioning between adjacent tandem wheels on spaced axles of a vehicle having no independent braking system provides upper and lower pairs of wheel contacting blocks connected in spaced relationship by a telescoping body assembly. The telescoping body assembly carries a rack on one portion and a fastening lever with a partial pinion on the other portion to engage the rack to adjust the length of the body assembly to move the wheel blocks into and out of fastening engagement with the tandem wheels for preventing relative rotation. Each wheel block is independently pivoted to allow tangential contact with the adjacent tire tread. A lock prevents movement of the fastening lever to maintain positioning and prevent tampering with the wheel chock when the fastening lever is in fastening position. A first species of wheel block provides paired adjustably spaced blocks on each side of the center line of tandem wheels. A second species of wheel block provides a unitary, pivotally mounted wedge-shaped block with curvilinear wedge surfaces for wheel contact.

REFERENCES:
patent: 433413 (1890-07-01), Lawrence
patent: 3059728 (1962-10-01), McKuskie
patent: 3124013 (1964-03-01), Ulm
patent: 3548975 (1970-12-01), Herndon
patent: 3737147 (1973-06-01), Morgan et al.
patent: 3760906 (1973-09-01), McGee
patent: 4934489 (1990-06-01), Jackson
patent: 5368134 (1994-11-01), Rickman et al.

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