AU2007245082B2 - Auger for use with trenching assembly - Google Patents
Auger for use with trenching assembly Download PDFInfo
- Publication number
- AU2007245082B2 AU2007245082B2 AU2007245082A AU2007245082A AU2007245082B2 AU 2007245082 B2 AU2007245082 B2 AU 2007245082B2 AU 2007245082 A AU2007245082 A AU 2007245082A AU 2007245082 A AU2007245082 A AU 2007245082A AU 2007245082 B2 AU2007245082 B2 AU 2007245082B2
- Authority
- AU
- Australia
- Prior art keywords
- auger
- trenching
- trenching assembly
- assembly
- ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000036346 tooth eruption Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/08—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/06—Dredgers; Soil-shifting machines mechanically-driven with digging screws
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/08—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
- E02F3/083—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain including a screw-type conveyor for transporting the excavated material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/06—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging elements mounted on an endless chain
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/12—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with equipment for back-filling trenches or ditches
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/22—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling
- E02F5/223—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling for back-filling
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Description
1 AUGER FOR USE WITH TRENCHING ASSEMBLY [0001] This application claims the benefit of provisional patent application Serial No. 60/743,816 filed on March 27, 2006, the entire contents of which are incorporated herein by reference. Field of the Invention [0002] The present invention relates to the field of work machines, and particularly to a work machine having a trencher and auger attachment. Summary of the Invention [00031 In accordance with the present invention there is provided a trenching assembly including: a frame including a plurality of ground engaging members; a trenching boom connected to the frame; a digging chain rotatably connected to the trenching boom; and an auger rotatably supported on the frame proximate a surface of the ground, said auger being adapted to move spoils away from the trenching boom; wherein the rotation of the auger may be operated independent of the rotation of the digging chain. 100041 Comprises/comprising and grammatical variations thereof when used in this specification are to be taken to specify the presence of stated features, integers, steps or components or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof Brief Description of the Drawings [0005] Figure 1 is a side view of a work machine having a trenching apparatus built in accordance with the present invention.
WO 2007/126890 PCT/US2007/007683 [00061 Figure 2 is side view of an alternative work machine configuration having a trenching apparatus built in accordance with the present invention. [00071 Figure 3 is a side cut-away of the trenching apparatus of 5 Figure 1. [0008] Figure 4 is a bottom- cut-away of the trenching apparatus of Figure 1. [00091 Figure 5 is a front cut-away of a trenching apparatus with a trenching blade in a raised position. 10 Detailed Description of the Preferred Embodiments [00101 With reference now to Figure 1, a trenching machine 10 is shown. The trenching machine 10 comprises a power unit 12 and a trenching assembly 14. As shown, the trenching assembly 14 is attached to the power unit 12 at an articulation plate 16. In a preferred embodiment, the articulation 15 plate 16 pivots about a vertical axis giving the trenching machine 10 greater range of motion. The trenching assembly 14 comprises at least one ground supporting member 18. [00111 The power unit 12 comprises an engine 20 and at least one ground engaging drive member 22. The at least one ground engaging drive 20 member 22 is powered by the engine 20 and adapted for translational motion. The engine 20 provides power to various components and motors of the power unit 12 and the trenching assembly 14. The power unit 12 preferably comprises a platform 24 and a plurality of controls 26, allowing an operator to control the mobility of the machine 10 and to operate the trenching 25 assembly 14. 2 WO 2007/126890 PCT/US2007/007683 [0012] With continued reference to Figure 1, the trenching assembly 14 comprises a frame 28, a trenching blade 30, and an auger assembly 32. The frame 28 comprises a connection assembly 34 and the at least one ground supporting member 18. The connection assembly 34 is 5 adapted for connection to the power unit 12 at the articulation plate 16. Alternatively, the connection assembly 34, and thus the trenching assembly 14, may be connected to a tool carrier. Preferably, the connection assembly 34 is adapted to pivotally connect the trenching assembly 14 to the power unit 12 for steering of the machine 10 at the articulation joint 16. More preferably, 10 the connection assembly 34 is adapted to pivotally connect the trenching assembly 14 to the power unit 12 as disclosed in U.S. Patent Application No. 11/610,428, the contents of which are incorporated by reference herein. 100131 Alternatively, as shown in Figure 2, the trenching assembly 14 having an auger assembly 32 (to be later described) may be integral with a 15 rigid frame trenching machine 10 of either a conventional walk-along or ride on configuration. As shown, the ground supporting member 18 of the trenching assembly 14 and the ground engaging drive members 22 on the power unit 20 comprise one or more wheels. The ground supporting member 18 and ground engaging drive members 22 may alternatively 20 comprise tracks or a combination of tracks and wheels. The ground supporting member 18 of the trenching assembly 14 may be powered or unpowered. [00141 Turning now to Figure 3, the trenching assembly 14 is shown in greater detail. Trenching blade 30 of the assembly 14 comprises a 25 trenching boom 35, a digging chain 36, and a plurality of cutting teeth 38. 3 WO 2007/126890 PCT/US2007/007683 The trenching boom 35 is pivotally connected to the frame 28 and pivots about a headshaft pivot point 40. The digging chain 36 extends around a periphery of the trenching boom 35. The digging chain 36 is adapted to rotate around the trenching boom 35, and is powered by a trenching hydraulic 5 motor 44 (shown in Fig. 4). Preferably, the speed of the digging chain 36 is capable of being dynamically varied by operation of the trencher motor -44. The plurality of cutting teeth 38 is mounted on the digging chain 36. The trenching boom 35 is generally moveable between a plurality of positions about the pivot point 40 by a hydraulic cylinder or similar lifting assembly. 10 [00151 The trenching blade 30 may be in a raised position, in which the cutting teeth 38 do not contact the ground. The trenching blade 30 may alternatively be in a lowered position, in which the cutting teeth engage the ground. In the lowered position, the cutting teeth 38 engage and loosen ground material and move the displaced ground material, or spoils, to the 15 surface, creating a trench as the machine traverses from right to left as shown in Figures 1 and 3. Preferably, a digging speed of the digging chain 36 may be controlled by the operator to affect a rate at which the trench is created. The trencher boom 35 and trencher motor 44 are controlled by an operator with one or more of the controls 26. 20 [00161 In a preferred embodiment, at least one spoils drag 45 is adjustably attached to the trenching boom 35. The at least one spoils drag 45 slides loosened ground material, or spoil, away from the trench thus reducing the amount of spoils reentering the trench. Preferably, a plurality of spoils drags 45 are used and adjustably attached to each side of the trenching 25 boom 35. In this embodiment, spoils are loosened by the digging chain 36 4 WO 2007/126890 PCT/US2007/007683 and moved away from the open trench. Spoils remaining by the trench are displaced away from an edge of the trench by the spoils drags 45. [00171 Referring now to Figure 4, a bottom view of the trenching assembly 14 is shown. The auger assembly 32 is provided to move spoils 5 generated by the trencher blade 30 away from the trench. The auger assembly 32 is mounted on the frame 28, directly in front of the trenching blade 30 relative to the direction of trenching. -The auger assembly 32 preferably comprises an auger motor 46, a hub 48, and an auger 50. [0018] The auger motor 46, characterized by an output speed, drives a 10 rotation of the auger 50. The output speed of the auger motor 46, and thus the rotation speed of the auger 50, is preferably dynamically varied by operation of one or more of the controls 26. Preferably, and because the auger 50 is driven by the motor 46 independent of the trencher motor 44, the auger rotation speed can be varied independent of the rotation of the digging 15 chain. 36 without affecting the speed of the digging chain as controlled by the trencher motor 44. This aspect of invention provides benefits not found in prior art, for example in varying speed based upon soil conditions. Thus, if operation of the trenching blade 30 causes spoils to accumulate faster than the auger assembly 32 is removing them, the rotation speed of the auger 50 can be 20 increased, increasing the ability of the auger assembly to move spoils away from the trench. [00191 The hub 48 houses bearings and seals and is secured to the frame 28. The auger 50 comprises a threaded length 52. The auger 50 is attached to the hub 48, and rotated by operation of the auger motor 46. 25 Preferably, the auger assembly 32 is cantilever mounted and level to the 5 WO 2007/126890 PCT/US2007/007683 ground. More preferably, the auger 50 is placed proximate the digging chain 36 and low to the ground. Most preferably, the auger 50 is attached to the frame 28 at a point between the rear ground drive members 22 and the pivot point 40 of the trenching boom 35. In the embodiment shown in 5 Figure 1, the auger 50 is attached to the frame 28 at a point between the articulation plate 16 and the pivot point 40 of the trenching boom 35. [00201 The auger 50 is preferably of a smaller diameter than the traditional trencher auger. A shorter fighting pitch of the smaller auger 50 and increased rotation speed breaks. the spoils into finer pieces, allowing the 10 spoils to be conveyed to a side of the work machine 10, resulting in a cleaner trench. Further, this feature makes it easier to return the spoils to the trench. The auger 50 may also be rotated at a higher rate of speed than the digging chain 36, permitting a smaller diameter auger 50. A smaller diameter auger 50 allows for a more compact configuration and increased versatility of 15 placement. [00211 With continued reference to Figure 4, the digging chain 36 defines a projected discharge width 54. The fighting, or threaded length 52 of the auger 50 is in front of and traverses across the discharge width 54 of the digging chain 36. This configuration allows spoils to be transferred from one 20 side of the projected discharge width 54 to the other along the threaded length 52 more efficiently. Thus, in this configuration, one auger assembly 32 may do the work of a two-auger system. Further, only one pile of spoils is created, reducing the work required in backfilling a trench. [00221 Alternatively, and now with reference to Figure 5, the auger 50 25 may be tilted from horizontal. Preferably, in the alternative embodiment, the 6 WO 2007/126890 PCT/US2007/007683 auger 50 is inclined relative to the ground. The inclined auger 50 allows the auger fighting to be low to the ground near the digging chain 36, while providing clearance from the ground to an end 56 of the auger remote from the hub 48. The auger 50 orientation may be tilted by adjustment of the 5 hub 48. The adjustment may be made by inclining the auger assembly 32 with shims. Alternatively, the adjustment may be made with a pin-slot arrangement. In yet another alternative, the adjustment of the auger assembly 32 may be made dynamically using hydraulics. The vertical distance from the auger 50 to the ground may alternatively be adjusted by mounting 10 the auger in a movable frame with incremental adjustments or dynamically with a hydraulic cylinder. The diameter of the auger 50 can be selected to optimize its mounting location and height from the ground. One skilled in the art will appreciate the beneficial aspects of a tilted auger 50 may also be accomplished with a tapered auger. With a tapered auger 50, the diameter of 15 the auger or the diameter of the fighting may vary along its length. Further, the auger 50 may be both tilted and tapered. [00231 With reference again to Figure 3, the trenching assembly 14 further comprises an optionally installed backfill blade 58. The backfill blade 58 is mounted to the frame 28 and is preferably located between the 20 auger 50 and the power unit 12. Spoils can be backfilled into an exposed trench without operation of the trenching blade 30 or the auger assembly 32 by pushing the spoils with the backfill blade 58. In an alternative mode of operation, the backfill blade 58 may be used to guide spoils into the auger assembly 32, for backfilling into the trench. 7 WO 2007/126890 PCT/US2007/007683 [00241 In operation, as the digging chain 36 loosens spoils, the spoils are deposited near the auger assembly 32. The spoils are then moved from near the digging chain 36 to the end 56 of the auger 50 by rotation of the threaded length 52 of the auger. Thus, a pile of spoils forms at the end 56 of 5 the auger 50, instead of in the path of the trenching blade 30. Spoils not -removed by the auger assembly 32 are displaced from proximate the newly formed trench by the spoils drag 45, as described earlier. [00251 The auger assembly 32 can alternatively be used as a backfill auger. In this configuration, the trencher blade 30 is raised and the trencher 10 motor 44 is not activated. The auger 50 moves collected spoils from the spoils pile to proximate an uncovered trench. Preferably, the machine 10 is -translated in a direction opposite a direction of the trenching operation while the auger 50 is rotated in an opposite direction than it rotates when removing spoil from proximate the trench. In this way, use of the backfill blade 58 and 15 the rotation of the auger 50 will cause spoils to be moved back into the trench. [0026] Various modifications can be made in the design and operation of the present invention without departing from the spirit thereof. Thus, while the principal preferred construction and modes of operation of the invention have been explained in what is now considered to represent its best 20 embodiments, which have been illustrated and described, it should be understood that the invention may be practiced otherwise than as specifically illustrated and described. 8
Claims (24)
1. A trenching assembly including: a frame including a plurality of ground engaging members; a trenching boom connected to the frame; a digging chain rotatably connected to the trenching boom; and an auger rotatably supported on the frame proximate a surface of the ground, said auger being adapted to move spoils away from the trenching boom; wherein the rotation of the auger may be operated independent of the rotation of the digging chain.
2. The trenching assembly of claim 1 wherein the auger is adapted to be tilted relative to the ground.
3. The trenching assembly of either claim 1 or 2 wherein the auger is inclined relative to a horizontal plane.
4. The trenching assembly of any one of the preceding claims wherein the auger defines a threaded length such that a portion of the threaded length extends on each side of a projected width defined by the digging chain.
5. The trenching assembly of any one of the preceding claims wherein the trenching assembly is attachable to a motorized work vehicle.
6. The trenching assembly of any one of the preceding claims wherein the trenching assembly is attachable to a motorized work vehicle at an articulation joint.
7. The trenching assembly of claim 6 wherein an attachment point of the auger to the frame is located between the articulation joint and a pivot point of the trenching boom.
8. The trenching assembly of any one of the preceding claims further including at least one ground supporting member. 10
9. The trenching assembly of claim I wherein the auger is substantially parallel to the ground.
10. The trenching assembly of any one of the preceding claims wherein the vertical distance of the auger relative to the ground is modifiable.
11. The trenching assembly of any one of the preceding claims further including a backfill blade.
12. The trenching assembly of any one of the preceding claims wherein the auger rotates without rotation of the digging chain.
13. The trenching assembly of any one of the preceding claims wherein the auger is adapted to rotate in forward or reverse.
14. The trenching assembly of any one of the preceding claims wherein a diameter of the auger is dependent upon a mounting location of the auger.
15. The trenching assembly of any one of the preceding claims wherein the position of the auger on the frame is adjustable.
16. The trenching assembly of any one of the preceding claims wherein the rotation speed of the auger may be varied dynamically.
17. The trenching assembly of any one of claims 1 to 15 wherein a rate of rotation of the auger may be dynamically changed.
18. The trenching assembly of any one of the preceding claims wherein a change in the rate of rotation of the auger does not affect a rate of rotation of the digging chain.
19. The trenching assembly of claim I wherein the orientation of the auger relative to the ground is modifiable. 11
20. The trenching assembly of any one of the preceding claims wherein the auger is cantilever mounted.
21. The trenching assembly of any one of claims 1 to 12 wherein the auger is adapted to be operated in the reverse direction.
22. The trenching assembly of any one of claims 1 to 9 wherein the auger position is adjustable relative to the trencher blade.
23. The trenching assembly of claim 22 wherein the auger position is operably adjustable.
24. A trenching assembly substantially as herein before described with reference to the accompanying drawings. THE CHARLES MACHINE WORKS, INC WATERMARK PATENT & TRADE MARK ATTORNEYS P29838AU00
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74381606P | 2006-03-27 | 2006-03-27 | |
US60/743,816 | 2006-03-27 | ||
PCT/US2007/007683 WO2007126890A1 (en) | 2006-03-27 | 2007-03-27 | Auger for use with trenching assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2007245082A1 AU2007245082A1 (en) | 2007-11-08 |
AU2007245082B2 true AU2007245082B2 (en) | 2010-07-15 |
Family
ID=38655833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2007245082A Ceased AU2007245082B2 (en) | 2006-03-27 | 2007-03-27 | Auger for use with trenching assembly |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070220783A1 (en) |
EP (1) | EP2002062A4 (en) |
CN (1) | CN101421464B (en) |
AU (1) | AU2007245082B2 (en) |
HK (1) | HK1131417A1 (en) |
WO (1) | WO2007126890A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7654017B2 (en) | 2008-05-09 | 2010-02-02 | Allan Black | Trenching attachment having an internal combustion engine |
US20120227292A1 (en) * | 2011-03-11 | 2012-09-13 | Trebil Jesse B | Trencher |
NL1039817C2 (en) * | 2012-09-24 | 2014-03-25 | Jean Heybroek B V | DEVICE FOR MAKING SLOTS. |
AU2016232989B2 (en) * | 2015-03-16 | 2020-08-27 | Tynab Pty Ltd | Wheel track renovator and method of use |
CN106576509A (en) * | 2016-01-14 | 2017-04-26 | 华中农业大学 | Axial-spiral tilting-type furrow opener |
CN106032674B (en) * | 2016-07-05 | 2018-08-17 | 长安大学 | A kind of bull-dozer for excavating groove and backfilling excavation |
US10138617B2 (en) * | 2016-08-12 | 2018-11-27 | The Charles Machine Works, Inc. | Ground-engageable attachment for a vehicle |
CN108797229A (en) * | 2018-08-01 | 2018-11-13 | 赵茂勋 | A kind of dredger structure of railway concrete layer |
CN109653277B (en) * | 2019-02-20 | 2024-07-16 | 辽宁工程技术大学 | Ditch excavating device and method for excavating, supporting and anchoring combined unit |
GB2599079B (en) | 2020-09-10 | 2024-01-10 | Mastenbroek Ltd | A backfill device for a trencher and a method of backfilling a trench |
CN112323892B (en) * | 2020-10-29 | 2022-10-14 | 塔里木大学 | Multi-functional ditching machine of planting ditch |
CN113863408B (en) * | 2021-09-30 | 2023-05-12 | 浙江宝通机械制造有限公司 | Trenching assembly of chain trencher |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3596994A (en) * | 1968-12-03 | 1971-08-03 | Kenneth S Garden | Multiple trench digger and soil bagger |
US5033214A (en) * | 1989-08-15 | 1991-07-23 | Clark Equipment Company | Trenching attachment mounting system |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1617111A (en) * | 1925-05-21 | 1927-02-08 | Heronimus George | Snow elevator and remover |
US2519076A (en) * | 1947-06-20 | 1950-08-15 | Auburn Machine Works Inc | Trench digger blade construction |
FR1165659A (en) * | 1957-01-18 | 1958-10-28 | Matenin Ets | Advanced trench excavator |
US2941843A (en) * | 1959-01-05 | 1960-06-21 | Crump Owen De Murrel | Ensilage loading apparatus |
US3398471A (en) * | 1965-03-04 | 1968-08-27 | Omsteel Ind Inc | Trencher boom and auger mount |
US3577664A (en) * | 1968-07-22 | 1971-05-04 | Delta Diggers Inc | Excavation machine having improved digging elements |
US3623246A (en) * | 1969-05-07 | 1971-11-30 | Roy W Skomial | Mobile trench excavating apparatus |
US3624935A (en) * | 1969-09-02 | 1971-12-07 | Saskatchewan Power Corp | Trencher having an endless digger and adjustable augers |
US3990250A (en) * | 1975-03-17 | 1976-11-09 | Howard William E | Method and apparatus for construction of retaining walls |
DD232325A1 (en) * | 1984-07-12 | 1986-01-22 | Stassfurt Veb Chemieanlagenbau | DEVICE FOR CLEANING SAND |
US4660306A (en) * | 1985-11-25 | 1987-04-28 | Bruce & Merrilees Electric Co. | Trencher attachment for hydraulic excavators |
US4974348A (en) * | 1987-02-06 | 1990-12-04 | Wallace Peter J | Chain digger attachment |
US4794708A (en) * | 1988-02-11 | 1989-01-03 | J. I. Case Company | Trenching machine boom assembly |
FR2642448A1 (en) * | 1989-02-01 | 1990-08-03 | Blanc Roger | Public works machine for cleaning and reprofiling road borders |
US4981396A (en) * | 1989-02-28 | 1991-01-01 | The Charles Machine Works, Inc. | Multiple pipe installation backfilling, and compaction attachment |
US5242246A (en) * | 1992-02-18 | 1993-09-07 | Terranalysis Corporation | Surface remediator |
US5479728A (en) * | 1994-03-08 | 1996-01-02 | The Charles Machine Works, Inc. | Apparatus for backfilling and tamping a trench |
US6299381B1 (en) * | 2000-02-11 | 2001-10-09 | Sylvester J. Liebrecht, Jr. | Trencher plow for laying pipe |
JP2001288774A (en) * | 2000-04-10 | 2001-10-19 | Fumio Hamada | Vertical transferring device |
US6789336B2 (en) * | 2000-11-10 | 2004-09-14 | Stanley Stewart Collins | Laterally adjustable, low profile trench-digging machine |
AUPR343601A0 (en) * | 2001-02-28 | 2001-03-29 | Dickins, Philip | Trenching machine |
JP2002322669A (en) * | 2001-04-27 | 2002-11-08 | Nippon Sharyo Seizo Kaisha Ltd | Construction machine for continuous underground wall |
US7096609B2 (en) * | 2003-02-04 | 2006-08-29 | Wesley Allen Bainter | Trencher unit |
KR100579714B1 (en) * | 2003-08-12 | 2006-05-17 | 기묘중건설 주식회사 | Pile driver for underground retaining wall |
-
2007
- 2007-03-27 US US11/691,955 patent/US20070220783A1/en not_active Abandoned
- 2007-03-27 AU AU2007245082A patent/AU2007245082B2/en not_active Ceased
- 2007-03-27 WO PCT/US2007/007683 patent/WO2007126890A1/en active Application Filing
- 2007-03-27 EP EP07754235.5A patent/EP2002062A4/en not_active Withdrawn
- 2007-03-27 CN CN2007800112132A patent/CN101421464B/en not_active Expired - Fee Related
-
2009
- 2009-10-15 HK HK09109549.8A patent/HK1131417A1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3596994A (en) * | 1968-12-03 | 1971-08-03 | Kenneth S Garden | Multiple trench digger and soil bagger |
US5033214A (en) * | 1989-08-15 | 1991-07-23 | Clark Equipment Company | Trenching attachment mounting system |
Also Published As
Publication number | Publication date |
---|---|
AU2007245082A1 (en) | 2007-11-08 |
EP2002062A1 (en) | 2008-12-17 |
CN101421464A (en) | 2009-04-29 |
HK1131417A1 (en) | 2010-01-22 |
US20070220783A1 (en) | 2007-09-27 |
WO2007126890B1 (en) | 2008-01-03 |
WO2007126890A1 (en) | 2007-11-08 |
CN101421464B (en) | 2012-08-15 |
EP2002062A4 (en) | 2014-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2007245082B2 (en) | Auger for use with trenching assembly | |
USRE35088E (en) | Trenching machine with laterally adjustable chain-type digging implement | |
US5074063A (en) | Undercut trenching machine | |
US6247757B1 (en) | Rotatable implement depth control apparatus | |
WO2011011732A2 (en) | Trenching system | |
JP2006257869A (en) | Foundation work machine having control device and excavating groove in soil | |
US7096609B2 (en) | Trencher unit | |
US6135567A (en) | Rotatable implement depth control apparatus | |
US6658768B1 (en) | Trencher | |
WO2012030994A2 (en) | Trenching machine with rear guide | |
JP2965941B2 (en) | Auger for excavators | |
AU635522B2 (en) | Trench excavating arm propulsion apparatus | |
CN211006818U (en) | Crawler-type ditcher | |
EP3290589B1 (en) | Arrangement for removing verge debris | |
JP3370771B2 (en) | Drilling attachment | |
CN219033349U (en) | Civil engineering foundation pit excavating device | |
CA2484710A1 (en) | Trencher | |
WO2000056985A1 (en) | An apparatus for digging a trench | |
JP2926025B2 (en) | Moving direction maintaining device in excavator | |
JP3565357B2 (en) | Shaft excavation machine | |
JP3225504B2 (en) | Leveling equipment | |
JP2004190299A (en) | Leveling machine | |
AU761992B2 (en) | An apparatus for digging a trench | |
WO2019182582A1 (en) | Grading system | |
JPH05244835A (en) | Digger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FGA | Letters patent sealed or granted (standard patent) | ||
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |