Adjustable hydraulic metering system
First Claim
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1. A vehicle comprising:
- a frame;
a plurality of traction devices configured to propel the frame on the ground;
an output device coupled to the frame, the output device configured to be moveable between a first position and a second position;
a hydraulic actuator coupled to the output device to move the output device between the first position and the second position; and
a hydraulic control system coupled to the hydraulic actuator and configured to provide hydraulic fluid to the hydraulic actuator, the hydraulic control system includinga base member having a range of travel, the range of travel corresponding to a range of metering rates of hydraulic fluid to the hydraulic actuator; and
an input device supported by the base member and being adjustable by an operator while the operator holds the base member, the input device having a first position which corresponds to the range of metering rates being set to a first range of metering rates and a second position which corresponds to the range of metering rates being set to a second range of metering rates, the second range of metering rates being greater than the first range of metering rates.
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Abstract
A vehicle is disclosed having a hydraulic control system with a user input to select a range of metering rates.
31 Citations
33 Claims
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1. A vehicle comprising:
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a frame; a plurality of traction devices configured to propel the frame on the ground; an output device coupled to the frame, the output device configured to be moveable between a first position and a second position; a hydraulic actuator coupled to the output device to move the output device between the first position and the second position; and a hydraulic control system coupled to the hydraulic actuator and configured to provide hydraulic fluid to the hydraulic actuator, the hydraulic control system including a base member having a range of travel, the range of travel corresponding to a range of metering rates of hydraulic fluid to the hydraulic actuator; and an input device supported by the base member and being adjustable by an operator while the operator holds the base member, the input device having a first position which corresponds to the range of metering rates being set to a first range of metering rates and a second position which corresponds to the range of metering rates being set to a second range of metering rates, the second range of metering rates being greater than the first range of metering rates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A vehicle comprising:
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a frame; a plurality of traction devices configured to propel the frame on the ground; an output device coupled to the frame, the output device being configured to perform a first function and to perform a second function; a first hydraulic actuator coupled to the output device to move the output device during the performance of the first function; a second hydraulic actuator coupled to the output device to move the output during the performance of the second function; and a hydraulic control system coupled to the first hydraulic actuator and the second hydraulic actuator and configured to provide hydraulic fluid to the first hydraulic actuator and the second hydraulic actuator, the hydraulic control system including a first user input device configured to be held by a first hand of the operator and to control the first function of the output device, the first user input having a first range of metering rates; a second user input device configured to be held by a second hand of the operator and to control the second function of the output device, the second user input device having a second range of metering rates; and a third user input device positioned to be adjustable by the operator while the operator holds the first user input device and the second user input device, the third user input device being configured to adjust at least one of the first range of metering rates and the second range of metering rates. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of controlling a metering rate of a hydraulic system of a vehicle which controls the operation of an output device, the method comprising the steps of:
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holding a first user input device of the vehicle with a first hand to control a first function of the output device the first function having a first range of metering rates; holding a second user input device of the vehicle with a second hand to control a second function of the output device, the second function having a second range of metering rates; adjusting at least one of the first range of metering rates and the second range of metering rates while continuing to hold the first user input device and the second user input device; and imparting movement to at least one of the first user input device and the second user input device while adjusting at least one of the first range of metering rates and the second range of metering rates. - View Dependent Claims (27, 28)
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29. A vehicle comprising:
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a frame; a plurality of traction devices configured to propel the frame on the ground; an output device coupled to the frame, the output device configured to be moveable between a first position and a second position; a hydraulic actuator coupled to the output device to move the output device between the first position and the second position; and a hydraulic control system coupled to the hydraulic actuator and configured to provide hydraulic fluid to the hydraulic actuator, the hydraulic control system including a plurality of first user input devices, each of the plurality of first user input devices having a default position and a range of travel from the default position, the range of travel corresponding to a range of metering rates of hydraulic fluid to the hydraulic actuator; and a second user input device having a first position and a second position, the second user input device being supported by at least one of the plurality of first user input devices, the second user device moving with the at least one of the plurality of first user input devices along the range of travel from the default position, the second user input device being adjustable by the operator while holding the plurality of first user input devices;
the control system setting the range of metering rates to a first range of metering rates corresponding to the second user input device being in the first position and setting the range of metering rates to a second range of metering rates corresponding to the second user input device being in the second position. - View Dependent Claims (30, 31, 32, 33)
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Specification