Heavy equipment apparatus that includes undercarriage with mobil

Details Heavy equipment apparatus that includes undercarriage with mobil Heavy equipment apparatus that includes undercarriage with mobil

1998-06-15

2000-08-22

Dickson, Paul N.

Motor vehicles

Bodies

Movable cab or operator's station

180 8913, 180 8914, 403123, B62D 33063

Patent

active

061056995

ABSTRACT:
A heavy equipment apparatus such as a feller buncher includes a mobile tilting undercarriage and a working upper that supports a boom and its working end portion. The undercarriage includes a frame and a deck with a spaced apart, generally parallel powered endless tracks for moving the undercarriage from one location to the other. A tower assembly is mounted on the deck of the frame and has a ball support rigidly attached thereto to define a rigid support with the frame. An upper is movably mounted to the undercarriage at the ball support with a tilting connection that enables the upper to tilt with respect to the undercarriage. A rotary bearing attached to the bottom of the upper enables the upper to rotate with respect to the undercarriage. A flange assembly forms the interface between the rotary bearing and the ball support. Extensible cylinders extend between the undercarriage and the flange assembly for articulating the upper relative to the undercarriage during use. An anti-rotation bar prevents relative rotation at the ball support between the flange assembly and the ball support.

REFERENCES:
patent: 4324304 (1982-04-01), Hashimoto et al.
patent: 4326571 (1982-04-01), Crawford
patent: 4565486 (1986-01-01), Crawford et al.
patent: 4650017 (1987-03-01), Pelletier et al.
patent: 4679803 (1987-07-01), Biller et al.
patent: 4823852 (1989-04-01), Langford
patent: 5337847 (1994-08-01), Woods et al.
patent: 5931247 (1999-08-01), Peterson

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