[특허]Trenching system with hydraulically adjustable hub

Trenching system with hydraulically adjustable hub 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E02F-005/14 E02F-005/08 E02F-003/18 E02F-003/24 E02F-003/92 E02F-005/10
출원번호	US-0687146 (2015-04-15)
등록번호	US-9695573 (2017-07-04)
발명자 / 주소	Sewell, Cody L. Ruhl, Michael C. Bazzell, David R. Stellman, Vernon T. Seabolt, Steven P. Schuermann, Andrew A.
출원인 / 주소	The Charles Machine Works, Inc.
대리인 / 주소	Tomlinson McKinstry, P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록 ▼

A system for uncovering a trench. The system comprises several subsystems, including a work machine and a frame for providing a seal with the surface to be trenched with a saw blade contained therein. The blade is supported on a hub which is slidably movable relative to the frame by operation of a linear actuator, which may be a hydraulic cylinder or the like. The vertical location of the blade within the frame is continuously adjustable to create a deeper or shallower trench. A monitoring system is provided to monitor the vertical location from an operator station.

대표청구항 ▼

1. A work machine comprising: a frame movable across a surface of the ground;a trenching assembly supported on the frame, the trenching assembly comprising: a hood assembly, moveable relative to the frame relative to three axes;a hub connected to and slidably movable relative to the hood assembly;a linear actuator for sliding the hub relative to the hood assembly; anda rotatable blade disposed within the hood assembly and mounted on the hub; anda cylinder assembly disposed between the trenching assembly and the frame, wherein the cylinder assembly manipulates a position of the trenching assembly relative to the frame. 2. The trenching assembly of claim 1 wherein the hub is continuously variable relative to the hood assembly. 3. The trenching assembly of claim 2 wherein the hub is slidably movable by a hydraulic cylinder. 4. The trenching assembly of claim 1 wherein the hub is movable relative to the hood assembly along one and only one line. 5. The trenching assembly of claim 1 further comprising a monitoring device for monitoring the hub. 6. The trenching assembly of claim 5 wherein the monitoring device comprises a mirror. 7. The trenching assembly of claim 1 further comprising a vacuum system connected to the hood assembly to evacuate a volume of debris created by the rotatable blade. 8. A method for cutting a narrow trench in a surface using a rotatable blade moveably attached to a frame and disposed within a cavity defined by a hood assembly, the hood assembly comprising a surface engaging member, the method comprising: adjusting the blade relative to the surface engaging member to achieve a desired trench depth;rotating the blade to cut a trench;positioning the surface engaging member on the surface adjacent the blade;translating the frame in a direction of desired trench length;applying a downpressure greater than the weight of the hood assembly to the surface at the surface engaging member to stabilize a portion of the surface adjacent the trench; andadjusting the position of the blade relative to the surface engaging member during rotation of the blade to change the trench depth. 9. The trenching assembly of claim 1 wherein between 51% and 95% of the blade is disposed within the hood assembly. 10. The work machine of claim 1 wherein hood comprises a surface engaging member and wherein the cylinder assembly provides a downpressure to the surface engaging member such that the surface engaging member provides a downpressure to the surface of the ground greater than a weight of the trenching assembly. 11. The work machine of claim 1 wherein the linear actuator comprises a hydraulic cylinder. 12. The work machine of claim 1 wherein a volume of the blade contained within the hood assembly may vary in a range from 51% to 95% by operation of the linear actuator. 13. The trenching assembly of claim 3 wherein the hydraulic cylinder is attached at a first end to the hood assembly at a second end to a plate supported on and slidable relative to the hood assembly. 14. The trenching assembly of claim 1 further comprising a plate slidably supported on the hood assembly, wherein the hub is supported on the plate. 15. The trenching assembly of claim 14 further comprising a pair of opposed slots disposed on the hood assembly, wherein the plate is supported within the pair of slots. 16. The trenching assembly of claim 15 wherein a hydraulic cylinder is disposed between the hood assembly and the plate such that extension of the hydraulic cylinder moves the plate relative to the pair of slots in a generally downward direction. 17. The work machine of claim 1 wherein the cylinder assembly comprises a level cylinder, a lift cylinder, and a traverse cylinder, wherein the level cylinder moves the hood assembly relative to a first axis, the level cylinder moves the hood assembly relative to a second axis, and the traverse cylinder moves the hood assembly relative to a third axis. 18. The trenching assembly of claim 8 wherein the trench has a width of less than 1.5 inches. 19. The method of claim 8 wherein adjustment of a hydraulic cylinder adjusts the position of the blade relative to the surface engaging member. 20. The method of claim 19 wherein the blade is adjusted in a direction substantially perpendicular to the desired trench length. 21. The method of claim 19 further comprising applying a vacuum within the cavity to remove spoils from the cavity and the trench.

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Lindblom Victor E. (Brooklyn Center MN), Tiltable hood assembly for an earth working machine.
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Doskocil David (1227 Fulbright Avenue Redlands CA 92373), Trench digging or root cutting device.
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Ruhl, Michael C.; Bazzell, David R.; Stellman, Vernon T.; Seabolt, Steven P.; Schuermann, Andrew A., Trenching system.
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