Rear-mounted loader bucket for a tractor including roll-back mea

Details Rear-mounted loader bucket for a tractor including roll-back mea Rear-mounted loader bucket for a tractor including roll-back mea

1986-09-15

1988-02-16

Spar, Robert J.

Material or article handling

Vertically swinging load support

Shovel or fork type

414715, B66F 900

Patent

active

047251891

ABSTRACT:
A loader bucket comprising a bucket support frame which is connected to the three-point hitch assembly located at the rear of a conventional tractor. The bucket support frame comprises a pair of side frame members which are pivotally connected to the rearward ends of the lower links arms of the hitch assembly. The frame also includes a vertically disposed post which has a bracket pivotally mounted at the upper end thereof. The forward end of the bracket is pivotally secured to the rearward end of the upper link arm of the hitch assembly. A pair of hydraulic cylinders are pivotally connected at one end thereof to the rearward end of the bracket and have their other ends operatively connected to a horizontally disposed shaft which is rotatably mounted on the bucket support frame. The loader bucket is pivotally mounted on the bucket support frame and is connected to the rotatable shaft by a linkage whereby extension and retraction of the hydraulic cylinders causes the bucket to be pivotally moved relative to the frame. The hydraulic cylinders permit the bucket to be maintained in a level condition, rolled back, or moved to a dumping position.

REFERENCES:
patent: 3187912 (1965-06-01), McKnight
patent: 3198357 (1965-08-01), Shelby
patent: 3199693 (1965-08-01), Schedeen
patent: 3368706 (1968-02-01), Vaalimaa et al.
patent: 3468442 (1969-09-01), Sarvela et al.
patent: 3529740 (1970-09-01), Chant
patent: 3872991 (1975-03-01), Pasideris et al.
patent: 3884378 (1975-05-01), Muellner et al.
patent: 3912092 (1975-10-01), Bolton et al.
patent: 4358241 (1982-11-01), Anderson

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