Hydraulic shovel
AssigneeKomatsu Ltd.
InventorsMasatake Tamaru, Masami Naruse, Kenzo Kimoto
Life of this patent
Estimating the term…
Abstract
A hydraulic shovel is provided which comprises a pair of left and right running/rotation pedals (3L and 3R) for running or rotating a vehicle, and a single running/rotation lever 7 which is installed separately from said pedals for similarly running or rotating the vehicle. The shovel allows the operator to run or rotate the vehicle by operating on the running/rotation pedals 3L and 3R, as well as by manipulating the running/rotation lever 7. Moreover, because the running/rotation lever 7 consists of a single lever, the operator can easily manipulate it by one hand, being relieved of complicated operations and inconveniencies encountered with the conventional machine, which ensures the improved operability.
Claims20
A hydraulic shovel comprising:
- running/rotation pedals (3) for running/rotating a vehicle;
- a single running/rotation lever (7) installed separately from the running/rotation pedals (3) for similarly running/rotating the vehicle;
- and
- a control means (8) which permits operation via either the running/rotation pedals (3) or the running/rotation lever (7) at a given moment.
A hydraulic shovel comprising:
- a pair of left and right running/rotation pedals (3L and 3R) which, when simultaneously depressed forward or backward, output running signals (PL and PR) responsible for running a vehicle forward or backward, and, when singly depressed forward or backward, outputs running signals (PL and PR) responsible for turning the running vehicle leftward or rightward;
- a single running/rotation lever (7) which, when slanted forward or backward, outputs a running signal (SD) responsible for running the vehicle forward or backward, and, when rotated while the lever being slanted forward or backward, outputs a steering signal (SS) responsible for turning the running vehicle leftward or rightward, and, when rotated while the lever being at a neutral position, outputs a rotation signal (SS) responsible for rotating the vehicle standing on a spot;
- and
- a control means (8) which permits operation via either the running/rotation pedals (3L and 3R) or the running/rotation lever (7) for a given moment.
Dependencies are inferred from the claim text.