초록 ▼

A work vehicle includes a telescoping boom extending outwardly from the vehicle. An attachment is operably connected to the boom, the attachment including opposed forks configured to be both urgable toward each other and urgable away from each other. The attachment is configured to be positionable o

A work vehicle includes a telescoping boom extending outwardly from the vehicle. An attachment is operably connected to the boom, the attachment including opposed forks configured to be both urgable toward each other and urgable away from each other. The attachment is configured to be positionable over and substantially laterally surround at least one pair of round bales arranged substantially side by side and having corresponding diameters in close proximity of each other. The opposed forks are urgable toward each other with sufficient compressive force applied to opposed portions of the diameters of the at least one pair of round bales, at least elastically deforming the cylindrical profile of at least one of the at least one pair of round bales, so that the at least one pair of round bales can be vertically lifted and manipulated by at least the boom to a predetermined destination.

대표청구항 ▼

1. A work vehicle comprising: a telescoping boom extending outwardly from the vehicle;an attachment operably connected to the boom, the attachment including opposed forks configured to be both urgable toward each other and urgable away from each other;the attachment configured to be positionable ove

1. A work vehicle comprising: a telescoping boom extending outwardly from the vehicle;an attachment operably connected to the boom, the attachment including opposed forks configured to be both urgable toward each other and urgable away from each other;the attachment configured to be positionable over and substantially laterally surround at least one pair of round bales arranged substantially side by side and having corresponding diameters in close proximity of each other, the opposed forks being urgable toward each other with sufficient compressive force applied to opposed portions of the diameters of the at least one pair of round bales, at least elastically deforming the cylindrical profile of at least one of the at least one pair of round bales, so that the at least one pair of round bales can be vertically lifted and manipulated by at least the boom to a predetermined destination; andan actuator configured to move the forks between at least a first gripping position and a second loading position. wherein in a gripping position two generally facing gripping surfaces of the forks are positioned closer to one another than in the loading position. 2. The work vehicle of claim 1, wherein the attachment is configured to be positioned over and lowered to substantially laterally surround the at least one pair of round bales. 3. The work vehicle of claim 1, wherein the attachment is rotatable at least 90 degrees with respect to the boom. 4. The work vehicle of claim 1, wherein the attachment includes a push-off device including a second actuator and configured for impacting at least one transported bale located between the forks. 5. The work vehicle of claim 4, wherein the push-off device is configured to move in a direction substantially perpendicular to the direction of the forks. 6. The work vehicle of claim 5, wherein the push-off device is positioned between the opposed sets of forks and movable respect to the forks. 7. The work vehicle of claim 6, wherein the attachment includes a base frame extending to a fork of the opposed forks, a carrier extending to forks defining the remainder of the opposed forks, the base frame and the carrier movable with respect to each other for varying lateral positioning of the forks. 8. The work vehicle of claim 1, wherein the predetermined destination is a transport frame defining an enclosure, access to the enclosure is provided by an opening formed in the enclosure. 9. The work vehicle of claim 8, wherein the opening is a door positioned at one end of the trailer. 10. The work vehicle of claim 1, wherein the work vehicle includes a fluid circuit associated with the boom comprising at least a first, second and third control valve, the first control valve comprising at least a raising position, a neutral position and lowering position, with one of the sides of the first control valve connectable to a source of pressurized fluid and to a reservoirthe second control valve configured to retain the boom in a fixed position when the fluid circuit is not in a bypass mode;the third control valve comprising at least a neutral position and a bypass position, selectable in fluid communication with the second control valve and first and second ports of a cylinder controlling the boom positionwherein in response to a condition of an electrical circuit and the first control valve being selectablv urged to the lowering position, the third control valve is actuated to the bypass position, the fluid circuit being placed in the bypass mode, a reservoir and the first port and the second port of the fluid cylinder being in fluid communication via the bypass position of the third control valve, bypassing the second control valve, permitting the boom to be lowered. 11. The work vehicle of claim 10, wherein in the bypass mode, the reservoir, first port and second port of the cylinder are in mutual fluid communication, bypassing the second control valve. 12. A work vehicle comprising: a telescoping boom extending outwardly from the vehicle;an attachment operably connected to the boom, the attachment including opposed forks configured to be both unable toward each other and urgable away from each other;the attachment configured to be positionable over and substantially laterally surround at least one pair of round bales arranged substantially side by side and having corresponding diameters in close proximity of each other, the opposed forks being urgable toward each other with sufficient compressive force applied to opposed portions of the diameters of the at least one pair of round bales, at least elastically deforming the cylindrical profile of at least one of the at least one pair of round bales, so that the at least one pair of round bales can be vertically lifted and manipulated by at least the boom to a predetermined destination;wherein the redetermined destination is a trans ort frame defining an enclosure, access to the enclosure is provided by an opening formed in the enclosure;wherein the work vehicle includes a fluid circuit associated with the boom that permits the attachment to be inserted inside the trailer by the boom is while the attachment maintains contact with a floor of the trailer;wherein the fluid circuit includes a first control valve comprising at least a raising position, a neutral position and a lowering position, with one of the positions of the first control valve being selectably in fluid communication with a first side and a second side, the first side of the first control valve connectable to a source of pressurized fluid and to a reservoir;a second control valve in fluid communication with the second side of the first control valve, the second control valve configured to retain the boom in a fixed position when the fluid circuit is not in a bypass mode;a third control valve in fluid communication with the fluid circuit, the third control valve comprising at least a neutral position and a bypass position, with one of the positions of the third control valve being selectably in fluid communication with a third side and a fourth side, the third side of the third control valve connectable to the second control valve and selectably connectable to the second side of the first control valve, the fourth side of the third control valve being selectably connectable to a first port and a second port of a fluid cylinder, the first port and the second port of the fluid cylinder being selectably connectable to the second side of the first control valve;an electrical circuit selectably connectable with the third control valve to control the third control valve when the electrical circuit is closed;in response to the electrical circuit being closed and the first control valve being selectably urged to the lowering position, the third control valve is actuated to the bypass position, the fluid circuit being placed in the bypass mode, the reservoir and the first port and the second port of the fluid cylinder being in fluid communication via the bypass position of the third control valve, bypassing the second control valve, permitting the boom to be angularly lowered toward a surface. 13. A work vehicle comprising: a telescoping boom extending outwardly from the vehicle;a fluid circuit associated with the boom;an attachment operably connected to the boom, the attachment including opposed forks configured to be both urgable toward each other and urgable away from each other;the attachment configured to be positionable over and substantially laterally surround at least one pair of round bales arranged substantially side by side and having corresponding diameters in close proximity of each other, the opposed forks being urgable toward each other with sufficient compressive force applied to opposed portions of the diameters of the at least one pair of round bales;wherein the fluid circuit includes a first control valve comprising at least a raising position, a neutral position and a lowering position, with one of the positions of the first control valve being selectably in fluid communication with a first side and a second side, the first side of the first control valve connectable to a source of pressurized fluid and to a reservoir;a second control valve in fluid communication with the second side of the first control valve, the second control valve configured to retain the boom in a fixed position when the fluid circuit is not in a bypass mode;a third control valve in fluid communication with the fluid circuit, the third control valve comprising at least a neutral position and a bypass position, with one of the positions of the third control valve being selectably in fluid communication with a third side and a fourth side, the third side of the third control valve connectable to the second control valve and selectably connectable to the second side of the first control valve, the fourth side of the third control valve being selectably connectable to a first port and a second port of a fluid cylinder, the first port and the second port of the fluid cylinder being selectably connectable to the second side of the first control valve;an electrical circuit selectably connectable with the third control valve to control the third control valve when the electrical circuit is closed;in response to the electrical circuit being closed and the first control valve being selectably urged to the lowering position, the third control valve is actuated to the bypass position, the fluid circuit being placed in the bypass mode, the reservoir and the first port and the second port of the fluid cylinder being in fluid communication via the bypass position of the third control valve, bypassing the second control valve.