Apparatus for controlling posture of front loader

Details Apparatus for controlling posture of front loader Apparatus for controlling posture of front loader

1988-08-10

1990-10-30

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

414708, 414701, 414697, E02F 300

Patent

active

049665189

ABSTRACT:
An apparatus for controlling the posture of a front loader has booms attachable to a vehicle body which are pivotally movably upward and downward and has a work implement attached to the forward ends of the booms and pivotally movable in a scooping direction and a dumping direction. Each of the booms and the implement are pivotally movable by a single control lever independently of each other or movable simultaneously. The apparatus includes an actuating member for shifting the control lever from a boom raising position to a boom raising and dumping position when the booms are not positioned lower than a specified level. This eliminates the likelihood of the implement tilting rearwardly downward even if the booms are raised, precluding the implement from spilling the earth or sand scooped up.

REFERENCES:
patent: 2914202 (1959-11-01), Wagner
patent: 3029961 (1962-04-01), Sagerer
patent: 3197051 (1965-07-01), Thickpenny
patent: 3251492 (1966-05-01), Kampert
patent: 3275174 (1966-09-01), Konefes
patent: 3713557 (1973-01-01), Seaberg et al.
patent: 3726428 (1973-04-01), Lark
patent: 3872990 (1975-03-01), York
patent: 4375344 (1983-03-01), Baum et al.
patent: 4431364 (1984-02-01), Redenbarger et al.
patent: 4737067 (1988-04-01), Samejima et al.

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