초록 ▼

A vehicle and work attachment for the vehicle are disclosed in which the vehicle is of the type having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, and hydraulic cylinders for moving th

A vehicle and work attachment for the vehicle are disclosed in which the vehicle is of the type having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, and hydraulic cylinders for moving the arms with respect to the body. Controls may be provided for controlling the valves that control supply of hydraulic fluid to the hydraulic cylinders. These hydraulic valves may be mounted on the work attachment. Additionally, the work attachment may include hydraulic cylinders that are controlled by a control on the vehicle via valves mounted on the attachment. Processing circuitry on the attachment conditions the valve control signals. The attachment may also carry valves that control the supply of hydraulic fluid to hydraulic cylinders on the attachment for effecting movement of attachment elements. Quick connect hydraulic couplings facilitate changing attachments.

대표청구항 ▼

1. A machine, comprising: a vehicle having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, hydraulic cylinders for moving said arms with respect to said body;valves for controlling the sup

1. A machine, comprising: a vehicle having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, hydraulic cylinders for moving said arms with respect to said body;valves for controlling the supply of hydraulic fluid to said hydraulic cylinders;controls for controlling said valves;a control for providing one or more electrical control signals on a vehicle attachment control line for controlling an attachment; anda work attachment, mounted on said forward extending support arms, having relatively movable attachment elements and one or more attachment hydraulic cylinders for effecting movement of said attachment elements,hydraulic fluid lines having quick connect couplings for connection to the hydraulic lines of the vehicle;an attachment electrical control line for connection to said vehicle attachment control line;a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line for providing one or more valve control signals, andelectrically actuated hydraulic valves, connected to said hydraulic fluid lines and responsive to said one or more valve control signals, for controlling the application of hydraulic fluid to said one or more attachment hydraulic cylinders in response to said one or more valve control signals. 2. A machine according to claim 1, in which said work attachment is selected from the group consisting of: auger, bale handler, broom, bucket, cold planer, concrete pulverizer, cutter, dozer blade, fertilizer spreader, fork lift forks, grapple, hitch, landscape rake, mower, mulcher, plate compactor, pole claw, pot mover, rock and tree handler, rock saw, roller, rotary broom, shear, snow blower, splitter, stump grinder, swale blade, tiller, tree spade, trencher, and winch. 3. A machine according to claim 1, in which said a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, comprises an amplifier circuit for providing one or more valve control signals of appropriate amplitude to control the operation of said electrically actuated hydraulic valves and said attachment. 4. A work attachment for a vehicle of the type having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, hydraulic cylinders for moving said arms with respect to said body, and a control for providing one or more electrical control signals on a vehicle attachment control line for controlling the attachment, comprising: relatively movable attachment elements and one or more attachment hydraulic cylinders for effecting movement of said attachment elements;hydraulic fluid lines having quick connect couplings for connection to the hydraulic lines of the vehicle;an attachment electrical control line for connection to said vehicle attachment control line;a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line for providing one or more valve control signals; andelectrically actuated hydraulic valves, connected to said hydraulic fluid lines and responsive to said one or more valve control signals, for controlling the application of hydraulic fluid to said one or more attachment hydraulic cylinders in response to said one or more valve control signals. 5. A work attachment for a vehicle according to claim 4, in which said work attachment is selected from the group consisting of: auger, bale handler, broom, bucket, cold planer, concrete pulverizer, cutter, dozer blade, fertilizer spreader, fork lift forks, grapple, hitch, landscape rake, mower, mulcher, plate compactor, pole claw, pot mover, rock and tree handler, rock saw, roller, rotary broom, shear, snow blower, splitter, stump grinder, swale blade, tiller, tree spade, trencher, and winch. 6. A work attachment for a vehicle according to claim 4, in which said processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, comprises an amplifier circuit for providing one or more valve control signals of appropriate amplitude to control the operation of said electrically actuated hydraulic valves and said attachment. 7. A work attachment for a vehicle according to claim 5, in which said valve control signals are specifically matched to the performance characteristics of the valve they control. 8. A work attachment for a vehicle according to claim 7 in which said amplifier circuit matches the valve control signals to the operating characteristics of the valve or valves being controlled. 9. A work attachment for a vehicle, said vehicle having a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, and a control for providing one or more electrical control signals on a vehicle attachment control line for controlling an attachment, comprising: relatively movable attachment elements and one or more attachment hydraulic cylinders for effecting movement of said attachment elements,hydraulic fluid lines having quick connect couplings for connection to the hydraulic lines of the vehicle;an attachment electrical control line for connection to said vehicle attachment control line;a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line for providing one or more valve control signals, andone or more electrically actuated hydraulic valves, connected to said hydraulic fluid lines and responsive to said one or more valve control signals, for controlling the application of hydraulic fluid to said one or more attachment hydraulic cylinders in response to said one or more valve control signals. 10. A work attachment according to claim 9, selected from the group consisting of: auger, bale handler, broom, bucket, cold planer, concrete pulverizer, cutter, dozer blade, fertilizer spreader, fork lift forks, grapple, hitch, landscape rake, mower, mulcher, plate compactor, pole claw, pot mover, rock and tree handler, rock saw, roller, rotary broom, shear, snow blower, splitter, stump grinder, swale blade, tiller, tree spade, trencher, and winch. 11. A work attachment according to claim 9, in which said a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, comprises an amplifier circuit for providing one or more valve control signals of appropriate amplitude to control the operation of said electrically actuated hydraulic valves and said attachment. 12. A work attachment according to claim 9, in which said valve control signals are specifically matched to the performance characteristics of the valve they control. 13. A work attachment according to claim 12 in which said amplifier circuit matches the valve control signals to the operating characteristics of the valve or valves being controlled. 14. A machine comprising: a vehicle having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, hydraulic cylinders for moving said arms with respect to said body, and a control for providing one or more electrical control signals on a hydraulic cylinder control line for controlling said hydraulic cylinders, anda work attachment, mounted on said forward extending support arms, havinghydraulic fluid lines having quick connect couplings for connection to the hydraulic lines of the vehicle;an attachment electrical control line for connection to said hydraulic cylinder control line;a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, for providing one or more valve control signals, andelectrically actuated hydraulic valves, connected to said hydraulic fluid lines on said work attachment, and responsive to said one or more valve control signals, for controlling the application of hydraulic fluid to said hydraulic cylinders on said vehicle body in response to said one or more valve control signals. 15. A machine according to claim 14, in which said work attachment is selected from the group consisting of: auger, bale handler, broom, bucket, cold planer, concrete pulverizer, cutter, dozer blade, fertilizer spreader, fork lift forks, grapple, hitch, landscape rake, mower, mulcher, plate compactor, pole claw, pot mover, rock and tree handler, rock saw, roller, rotary broom, shear, snow blower, splitter, stump grinder, swale blade, tiller, tree spade, trencher, and winch. 16. A machine according to claim according to claim 14, in which said a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, comprises an amplifier circuit for providing one or more valve control signals of appropriate amplitude to control the operation of said hydraulic valves and said hydraulic cylinders on said vehicle body. 17. A work attachment for a vehicle of the type having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, hydraulic cylinders for moving said arms with respect to said body, and a control for providing one or more electrical control signals on a hydraulic cylinder control line for controlling said hydraulic cylinders, comprising: hydraulic fluid lines having quick connect couplings for connection to the hydraulic lines of the vehicle;an attachment electrical control line for connection to said hydraulic cylinder control line;a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, for providing one or more valve control signals, andelectrically actuated hydraulic valves on said work attachment, connected to said hydraulic fluid lines and responsive to said one or more valve control signals, for controlling the application of hydraulic fluid to said hydraulic cylinders on said vehicle body in response to said one or more valve control signals. 18. A work attachment for a vehicle according to claim 17, in which said work attachment is selected from the group consisting of: auger, bale handler, broom, bucket, cold planer, concrete pulverizer, cutter, dozer blade, fertilizer spreader, fork lift forks, grapple, hitch, landscape rake, mower, mulcher, plate compactor, pole claw, pot mover, rock and tree handler, rock saw, roller, rotary broom, shear, snow blower, splitter, stump grinder, swale blade, tiller, tree spade, trencher, and winch. 19. A work attachment for a vehicle according to claim 17, in which said processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, comprises an amplifier circuit for providing one or more valve control signals of appropriate amplitude to control the operation of said hydraulic valves and said hydraulic cylinders on said vehicle body. 20. A work attachment for a vehicle according to claim 19, in which said valve control signals are specifically matched to the performance characteristics of the valve they control. 21. A work attachment for a vehicle according to claim 20 in which said amplifier circuit matches the valve control signals to the operating characteristics of the valve or valves being controlled. 22. A machine, comprising: a vehicle having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, hydraulic cylinders for moving said arms with respect to said body;valves for controlling the supply of hydraulic fluid to said hydraulic cylinders;controls for controlling said valves;a control for providing one or more electrical control signals on a vehicle attachment control line for controlling an attachment;a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line for providing one or more valve control signals; anda work attachment, mounted on said forward extending support arms, having relatively movable attachment elements and one or more attachment hydraulic cylinders for effecting movement of said attachment elements,hydraulic fluid lines having quick connect couplings for connection to the hydraulic lines of the vehicle; andelectrically actuated hydraulic valves, connected to said hydraulic fluid lines and responsive to said one or more valve control signals, for controlling the application of hydraulic fluid to said one or more attachment hydraulic cylinders in response to said one or more valve control signals. 23. A machine according to claim 22, in which said work attachment is selected from the group consisting of: auger, bale handler, broom, bucket, cold planer, concrete pulverizer, cutter, dozer blade, fertilizer spreader, fork lift forks, grapple, hitch, landscape rake, mower, mulcher, plate compactor, pole claw, pot mover, rock and tree handler, rock saw, roller, rotary broom, shear, snow blower, splitter, stump grinder, swale blade, tiller, tree spade, trencher, and winch. 24. A machine according to claim 22, in which said a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, comprises an amplifier circuit for providing one or more valve control signals of appropriate amplitude to control the operation of said electrically actuated hydraulic valves and said attachment. 25. A work attachment for a vehicle of the type having a vehicle body, forward extending support arms, a motor-driven hydraulic fluid pump, hydraulic lines for carrying hydraulic fluid, a hydraulic fluid reservoir, hydraulic cylinders for moving said arms with respect to said body, a control for providing one or more electrical control signals on a vehicle attachment control line for controlling the attachment, and a processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line for providing one or more valve control signal, comprising: relatively movable attachment elements and one or more attachment hydraulic cylinders for effecting movement of said attachment elements;hydraulic fluid lines having quick connect couplings for connection to the hydraulic lines of the vehicle; andelectrically actuated hydraulic valves, connected to said hydraulic fluid lines and responsive to said one or more valve control signals, for controlling the application of hydraulic fluid to said one or more attachment hydraulic cylinders in response to said one or more valve control signals. 26. A work attachment for a vehicle according to claim 25, in which said work attachment is selected from the group consisting of: auger, bale handler, broom, bucket, cold planer, concrete pulverizer, cutter, dozer blade, fertilizer spreader, fork lift forks, grapple, hitch, landscape rake, mower, mulcher, plate compactor, pole claw, pot mover, rock and tree handler, rock saw, roller, rotary broom, shear, snow blower, splitter, stump grinder, swale blade, tiller, tree spade, trencher, and winch. 27. A work attachment for a vehicle according to claim 25, in which said processing circuit, responsive to said one or more electrical control signals on said attachment electrical control line, comprises an amplifier circuit for providing one or more valve control signals of appropriate amplitude to control the operation of said electrically actuated hydraulic valves and said attachment. 28. A work attachment for a vehicle according to claim 26, in which said valve control signals are specifically matched to the performance characteristics of the valve they control. 29. A work attachment for a vehicle according to claim 28 in which said amplifier circuit matches the valve control signals to the operating characteristics of the valve or valves being controlled.