Mechanism for rotating a tree-felling implement and tree-felling

Details Mechanism for rotating a tree-felling implement and tree-felling Mechanism for rotating a tree-felling implement and tree-felling

1995-04-10

1996-09-10

Merritt, Karen B.

Material or article handling

Vertically swinging load support

Grab

144335, 144 3D, 414680, 414729, A01G 2308

Patent

active

055539939

ABSTRACT:
The mechanism is used for rotating a tree-felling implement rotatably mounted with a pivot to the distal end of the boom of a logging vehicle. The mechanism, the tree-felling implement, the boom and the logging vehicle form a tree-felling machine controlled by an operator and used on logging sites. The mechanism has a pinion coaxial with the implement pivot and fixed in rotation with reference to the distal end of the boom. An arc-shaped rack is rotatably mounted on the frame of the implement by a rack pivot in spaced relationship with the pinion. The rack is in mesh with the pinion and hydraulic actuators are provided on the frame of the implement for swaying the rack and thereby rotating the implement with reference to the boom. Such mechanism is capable of rotating the tree-felling implement with reference to the boom plane in both directions and according to a much wider range angle than the prior art mechanisms.

REFERENCES:
patent: 2656059 (1953-10-01), Troyer
patent: 2681739 (1954-06-01), Gokey
patent: 3027026 (1962-03-01), Couquet
patent: 3081891 (1963-03-01), Przybylski
patent: 3197049 (1965-07-01), Schwing
patent: 3217910 (1965-11-01), Waite
patent: 3278046 (1966-10-01), Shumaker
patent: 3495727 (1970-02-01), Long
patent: 3550794 (1970-12-01), Suverkrop
patent: 3796331 (1974-03-01), Dutton
patent: 3840132 (1974-10-01), Howells, Jr. et al.
patent: 4127152 (1978-11-01), Larson et al.
patent: 4134505 (1979-01-01), Watanabe
patent: 4412569 (1983-11-01), Barnett et al.
patent: 4552191 (1985-11-01), Kuusilinna
patent: 5073080 (1991-12-01), Blum
patent: 5074740 (1991-12-01), Weigel
patent: 5140760 (1992-08-01), Mannbro
patent: 5377730 (1995-01-01), Hamilton
patent: 5378852 (1995-01-01), Manor
patent: 5441090 (1995-08-01), Hill et al.

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