A system to stabilize a construction vehicle is disclosed having a frame and a pair of stabilizing legs with ground-engaging shoes at the ends of the legs. The stabilizing legs may pivotally connect to the frame on substantially opposing sides, so that the stabilizing legs pivot upwards to a stowed
A system to stabilize a construction vehicle is disclosed having a frame and a pair of stabilizing legs with ground-engaging shoes at the ends of the legs. The stabilizing legs may pivotally connect to the frame on substantially opposing sides, so that the stabilizing legs pivot upwards to a stowed position and pivot downwards to a stabilizing position where the shoe engages the ground. The stabilizing legs may telescope between a retracted and extended position. The retracted position locates the shoe closer to the vehicle and the extended position further from the vehicle. A pair of hydraulic cylinders may be connected to the respective stabilizing legs to power the telescopic movement of the stabilizing legs between the retracted position and extended position. A controller may allow substantially lateral movement of the construction vehicle while the pair of stabilizing legs are engaged with the ground to support the construction vehicle.
대표청구항▼
1. A construction vehicle with a frame and an earth moving tool mounted on a stick and boom, the system comprising: a pair of stabilizing legs having leg distal ends;wherein the pair of stabilizing legs telescope between a retracted position and an extended position, whereby the retracted position l
1. A construction vehicle with a frame and an earth moving tool mounted on a stick and boom, the system comprising: a pair of stabilizing legs having leg distal ends;wherein the pair of stabilizing legs telescope between a retracted position and an extended position, whereby the retracted position locates the leg distal ends closer to the construction vehicle and the extended position locates the leg distal ends further from the construction vehicle;a first pair of hydraulic cylinders connected to the pair of stabilizing legs to power a telescopic movement of the pair of stabilizing legs between the retracted position and the extended position; anda controller, attached to the construction vehicle, to control the first pair of hydraulic cylinders to extend one of the first pair of hydraulic cylinders and to retract the other of the first pair of hydraulic cylinders to shift the construction vehicle laterally between the leg distal ends when the leg distal ends are engaged with the ground, thereby allowing substantially lateral movement of the construction vehicle while the pair of stabilizing legs are engaged with the ground. 2. The construction vehicle according to claim 1, wherein the pair of stabilizing legs are pivotally connected to the frame on substantially opposing sides of the frame, such that the pair of stabilizing legs pivot upwards to a stowed position close to the construction vehicle and pivot downwards to a stabilizing position where the leg distal ends engage the ground; and a second pair of hydraulic cylinders to connect to the pair of stabilizing legs to power a pivoting movement of the pair of stabilizing legs between the stowed position and the stabilizing position. 3. The construction vehicle of claim 2 wherein the construction vehicle includes a tractor mounted upon the frame to supply power to move the construction vehicle and to supply power to the first pair of hydraulic cylinders and the second pair of hydraulic cylinders. 4. The construction vehicle of claim 2 wherein the construction vehicle includes a tractor mounted upon the frame to supply power to move the construction vehicle and to supply power to the first pair of hydraulic cylinders and the second pair of hydraulic cylinders; and a loader bucket, pivotally attached to the frame, wherein the loader bucket is adapted to pivot downwardly to engage the ground to assist the pair of stabilizing legs with overcoming the forces of the earth moving tool scooping and swinging on the stick and boom during excavation. 5. The construction vehicle of claim 1 wherein the controller is attached to the construction vehicle, to control the first pair of hydraulic cylinders by extending and retracting one of the first pair of hydraulic cylinders independently of the other of the first pair of hydraulic cylinders. 6. The construction vehicle of claim 1 wherein the pair of stabilizing legs are adapted to overcome the forces of the earth moving tool scooping and swinging on the stick and boom during excavation. 7. The construction vehicle of claim 1 wherein the frame includes a right side and a left side, and wherein one of the pair of stabilizing legs is connected to the right side of the frame, and one of the leg distal ends engages the ground on the right side of the frame. 8. The construction vehicle of claim 1 further comprising: wherein the construction vehicle includes a loader bucket, pivotally attached to the frame, wherein the loader bucket is adapted to pivot downwardly to engage the ground to assist the pair of stabilizing legs with overcoming the forces of the earth moving tool scooping and swinging on the stick and boom during excavation. 9. A construction vehicle comprising: a system to stabilize the construction vehicle, which has a frame with a tractor mounted on the frame, comprising: a stabilizing leg with a ground-engaging shoe;wherein the stabilizing leg telescopes between a retracted position and an extended position, whereby the retracted position locates the ground-engaging shoe closer to the frame and the extended position locates the ground-engaging shoe further from the frame;a hydraulic cylinder connected to the stabilizing leg to power a telescopic movement of the stabilizing leg between the retracted position and the extended position;a backhoe bucket, mounted on a stick and boom, pivotally attached to the frame, wherein the stabilizing leg is adapted to overcome the forces of the backhoe bucket scooping and swinging on the stick and boom during excavation; anda controller, attached to the construction vehicle, to control the hydraulic cylinder to extend and to retract the ground-engaging shoe,wherein the system is configured to shift the construction vehicle laterally towards the ground-engaging shoe, when the ground-engaging shoe is engaged with the ground, thereby allowing substantially lateral movement of the construction vehicle while the stabilizing leg is engaged with the ground. 10. The construction vehicle of claim 9, wherein the stabilizing leg is pivotally connected to the frame, such that the stabilizing leg pivots upwards to a stowed position and pivots downwards to a stabilizing position where the ground-engaging shoe engages the ground; and a second hydraulic cylinder connected to the stabilizing leg to power a pivoting movement of the stabilizing leg between the stowed position and the stabilizing position. 11. The construction vehicle of claim 10 wherein the controller is attached to the construction vehicle, to control the hydraulic cylinder to extend and to retract the ground-engaging shoe; the system further comprising a second controller, attached to the construction vehicle, to control the second hydraulic cylinder to stow and to stabilize the stabilizing leg; anda loader bucket, pivotally attached to the frame, wherein the loader bucket is adapted to pivot downwardly to engage the ground to assist the stabilizing leg with overcoming the forces of the backhoe bucket scooping and swinging on the stick and boom during excavation. 12. The construction vehicle of claim 9 wherein the stabilizing leg is connected to the same side of the frame as the ground-engaging shoe engages the ground. 13. The construction vehicle of claim 12 further comprising: a loader bucket, pivotally attached to the frame, wherein the loader bucket is adapted to pivot downwardly to engage the ground to assist the stabilizing leg with overcoming the forces of the backhoe bucket scooping and swinging on the stick and boom during excavation. 14. The construction vehicle of claim 10 further comprising: a second controller, attached to the construction vehicle, to control the second hydraulic cylinder to stow and to stabilize the stabilizing leg. 15. A kit, to retrofit a construction vehicle with a frame and an existing hydraulic circuit for existing stabilizing legs, comprising: a pair of replacement stabilizing legs having leg distal ends adapted to engaged with the ground and support the construction vehicle;wherein the pair of replacement stabilizing legs telescope between a retracted position and an extended position, whereby the retracted position locates the leg distal ends closer to the construction vehicle and the extended position locates the leg distal ends further from the construction vehicle;a pair of hydraulic cylinders connected to the pair of replacement stabilizing legs to power a telescopic movement of the pair of replacement stabilizing legs between the retracted position and the extended position;a diverter valve to divert hydraulic fluid from the existing hydraulic circuit to the pair of hydraulic cylinders; anda controller to control a flow of hydraulic fluid between the existing hydraulic circuit and the diverter valve to control the pair of hydraulic cylinders to extend one of the pair of hydraulic cylinders and to retract the other of the pair of hydraulic cylinders to shift the construction vehicle laterally between the leg distal ends when the leg distal ends are engaged with the ground, thereby allowing substantially lateral movement of the construction vehicle while the pair of replacement stabilizing legs are engaged with the ground to support the construction vehicle. 16. The kit of claim 15, wherein the pair of replacement stabilizing legs are configured and arranged to pivotally connect to the frame on substantially opposing sides of the frame, such that the pair of replacement stabilizing legs pivot upwards to a stowed position close to the construction vehicle and pivot downwards to a stabilizing position where the leg distal ends engage the ground; and a second pair of hydraulic cylinders to connect to the pair of replacement stabilizing legs to power a pivoting movement of the pair of replacement stabilizing legs between the stowed position and the stabilizing position. 17. The kit of claim 15 further comprising: a manual to provide instruction to operate the telescopic movement of the pair of replacement stabilizing legs using the controller. 18. The kit of claim 15 further comprising: an instruction manual to provide instruction to attach the pair of replacement stabilizing legs to the construction vehicle and to provide instruction to connect the diverter valve to the existing hydraulic circuit. 19. The kit of claim 15 further comprising: an instruction manual to provide instruction to attach the pair of replacement stabilizing legs to the construction vehicle and to provide instruction to connect the diverter valve and the controller to the existing hydraulic circuit.
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이 특허에 인용된 특허 (12)
Anderson Thomas M. ; Krasny Alex ; Serre Phil ; Eggert Thomas ; Edwards Robert, Articulated boom monitoring system.
Gilbert Bibaut (22 ; rue de Compigne 60880 Le Meux FRX), Earth digging machine for use on soft or undulating terrain, particularly for the clearing of ponds, swamps or canals.
Wunder Johannes (Seestrasse 52a A-3224 Mitterbach ATX) Winter Udo (Losensteinerstrasse 23 A-4020 Linz ATX) Schabelreiter Johann (Kirchdorf 20 A-8132 Pernegg ATX) Martin Werner (Simchengasse 2 A-8045 , Loading device for containers or the like.
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