Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1996-02-12
1998-09-15
Underwood, Donald W.
Material or article handling
Vertically swinging load support
Shovel or fork type
414697, 414918, E02F 300
Patent
active
058070613
ABSTRACT:
An off-highway loading vehicle having a frame, a cab, and a linkage arrangement for operably attaching a work implement to the frame is disclosed. The loading vehicle includes a pair of spaced apart lift arms having a rear end portion pivotally connected to the frame and a forward end portion pivotally connected to the work implement. A lowermost edge of a forward section of the lift arms angles downwardly from a lowermost edge of a rearward section thereof. Thus, the lift arms avoid contact with the frame when in a lowered position to place the work implement adjacent a front end of the frame. In addition, a lifting device acts between the frame and the lift arms to move the lift arms between the lowered position and a raised position. A tilt mechanism is also provided for pivoting the work implement between a lowered position in which an underside thereof is tilted below a horizontal plane, an intermediate position in which the underside is substantially horizontal, and a raised position in which the underside is tilted above the horizontal plane. The tilt mechanism includes a pair of tilt linkages pivotally connected to the work implement, a pair of extension arms interconnecting the lift arms and the tilt linkages, and a pair of tilt cylinders adapted to move either the tilt linkages or extension arms to thereby tilt the work implement a desired amount. The tilt cylinders are adapted to pivot with respect to the frame in response to raising and lowering of the lift arms.
REFERENCES:
patent: 3677427 (1972-07-01), Allen
patent: 3722724 (1973-03-01), Blakely
patent: 3776403 (1973-12-01), Billings
patent: 3831683 (1974-08-01), Ikeda et al.
patent: 3913768 (1975-10-01), Groos et al.
patent: 4288196 (1981-09-01), Sutton, II
patent: 4295779 (1981-10-01), Shumaker
patent: 4324525 (1982-04-01), Lane et al.
patent: 4626163 (1986-12-01), Link et al.
patent: 4768917 (1988-09-01), Garman
patent: 4791549 (1988-12-01), Heiser et al.
patent: 4844685 (1989-07-01), Sagaser
patent: 4889466 (1989-12-01), Jindai et al.
patent: 4934463 (1990-06-01), Ishida et al.
patent: 4947705 (1990-08-01), Yates et al.
patent: 4964779 (1990-10-01), Sagaser
patent: 5188502 (1993-02-01), Tonsor et al.
Donoghue James W.
Ehrhardt Richard L.
Moffitt John M.
Case Corporation
Underwood Donald W.
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