Mechanical linkage for control of power machine
AssigneeClark Equipment Company
InventorsJakub Matúsu, Karel Vanek, Petr Kratochvíl, Jaroslav Fiser
Life of this patent
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Abstract
A mechanical linkage for a power machine includes first and second horizontal shafts extending sideways along respective first and second axes. First and second links are operably coupled to the respective first and second horizontal shafts. The links convert actuation of operator input devices of the power machine into rotation of the horizontal shafts about their axes. First and second valve actuators convert rotation of the respective first and second horizontal shafts into actuation of respective first and second spools in a hydraulic valve of the power machine.
Claims16
A mechanical linkage for a power machine having a forward end and a rearward end, a sideways direction being generally perpendicular to an axis that extends between the forward and rearward end, the power machine including a hydraulic spool valve, the linkage comprising:
- a first horizontal shaft extending sideways along a first axis;
- a first link operably coupled to the first horizontal shaft and configured to be operably coupled to a first operator input device and for converting actuation of the first operator input device into rotation of the first horizontal shaft about the first axis;
- a first valve actuator connectable to a first spool in the hydraulic spool valve for converting rotation of the first horizontal shaft about the first axis into actuation of the first spool;
- a second horizontal shaft extending sideways along a second axis that is parallel to and non-collinear with the first axis;
- a second link operably coupled to the second horizontal shaft and configured to be operably coupled to a second operator input device and for converting actuation of the second operator input device into rotation of the second horizontal shaft about the second axis;
- and
- a second valve actuator connectable to a second spool in the hydraulic spool valve for converting rotation of the second horizontal shaft about the second axis into actuation of the second spool.
A power machine have a front and a rear, forward and rearward directions being toward the respective front and rear, a sideways direction being generally perpendicular to the forward and rearward directions, the power machine comprising:
- a hydraulic spool valve having first and second spools;
- a first operator input device;
- a first horizontal shaft extending sideways along a first axis;
- a first link interconnecting the first operator input device and the first horizontal shaft for converting actuation of the first operator input device into rotation of the first horizontal shaft about the first axis;
- a first valve actuator for converting rotation of the first horizontal shaft about the first axis into actuation of the first spool;
- a second operator input device;
- a second horizontal shaft extending sideways along a second axis that is parallel to and non-collinear with the first axis;
- a second link interconnecting the second operator input device and the second horizontal shaft for converting actuation of the second operator input device into rotation of the second horizontal shaft about the second axis;
- and
- a second valve actuator for converting rotation of the second horizontal shaft about the second axis into actuation of the second spool.
Dependencies are inferred from the claim text.