Land vehicles: dumping – Tilting – Tilting about plural or shifting fulcrums
Patent
1981-05-12
1983-02-08
Spar, Robert J.
Land vehicles: dumping
Tilting
Tilting about plural or shifting fulcrums
298 22B, B60P 104
Patent
active
043726143
ABSTRACT:
A pivoted wedge for blocking up the dumping platform of a truck in dumping position. The wedge comprises a main body in which are rotatably mounted a pair of driven rollers designed for riding on the frame of the truck and allowing translation of the body along the frame, and a driving roller designed for riding on the frame of the dumping platform. The driving roller which forms part of the wedge, positively engages the driven rollers and rotates them in the opposite direction towards the junction between the frame of the truck and the frame of the platform when the dumping platform is moving down, thus causing movement of the wedge towards said junction and self-blocking of the platform in dumping position. This wedge which automatically blocks up to the platform of a truck in dumping position in the case of failure of the hydraulic mechanism used for rising up the platform, can advantageously be used as safety device by a mechanic who has to work under the platform of a dumping truck.
REFERENCES:
patent: 1715491 (1929-06-01), Barrett
patent: 2082139 (1937-06-01), Bassetti
patent: 2274074 (1942-02-01), Lavalier
patent: 2362668 (1944-11-01), Schultz
patent: 2427381 (1947-09-01), Borgogno
patent: 3157435 (1964-11-01), Sherven
Muncy Joseph
Spar Robert J.
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