Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1991-06-28
1992-09-08
Spar, Robert J.
Material or article handling
Vertically swinging load support
Shovel or fork type
74 99A, 74469, 403 15, E02F 336
Patent
active
051453134
ABSTRACT:
A fluid-powered, laterally tiltable quick disconnect bucket actuator. A bucket has a pair of bucket clevises, and an actuator has a generally cylindrical body with an output shaft rotatably disposed therein with an axis in general parallel alignment with a forward rotation plane through which the bucket is rotatable on a backhoe arm by the operation of a rotation link. A bracket is attached to the body and has a pair of clevises for pivotal attachment to the vehicle arm and rotation link. The output shaft has a pair of shaft attachmetn forks for each end for attaching the shaft to the corresponding bucket clevises. The one pair of shaft attachment forks is attached to and moves axially with a member which is selectively extendable relative to the shaft to move the pair of forks between a locking position holding the bucket and a release position allowing disconnection of the bucket. A linear-to-rotary transmission device disposed within the body produces rotational movement of the shaft relative to the body to produce lateral tilting of the bucket in a lateral plane generally transverse to the forward rotational plane for the bucket.
REFERENCES:
patent: 4042131 (1977-08-01), Buttke
patent: 4277899 (1981-07-01), Guthoff
patent: 4307991 (1981-12-01), Birdwell et al.
patent: 4639183 (1987-01-01), Guthoff
patent: 4906161 (1990-03-01), Weyer
patent: 4944628 (1990-07-01), Hulden
Raine, "Tilt Bucket", B1192-8 (Feb. 1988).
Wain-Roy, Inc., "The Wain-Roy.RTM.Rota-Jaw Bucket", WR-002 CP-10M-Feb. 1985.
Spar Robert J.
Underwood Donald W.
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