Title:
TRENCHING APPARATUS AND A METHOD OF TRENCHING
Document Type and Number:
WIPO Patent Application WO/2020/089251
Kind Code:
A3
Abstract:
The invention provides a trenching apparatus, comprising: a trencher body moveable on the ground surface, above the level of the trench; a ground engagement boom associated with the trencher body and lifting means arranged to control and configure the ground engagement boom so as to enter the ground in a substantially vertical configuration. The trenching apparatus further comprising selectively configurable support legs moveable between a first closed position and a second deployed configuration in which the legs are extended in a direction away from the body of the prime mover to provide support to the trenching apparatus when the boom is configured vertically and not engaged with the ground. The main body of the trenching apparatus having a protection chute provided on the body to protect the body from material that falls from the boom, when the boom is in the inclined orientation. On the ground engagement boom there is provided a chain for interacting with earth in use and a subsequent winch provided on the body to engage with the chain of the ground engagement boom when in the inclined orientation. There is also disclosed an endless chain ground-engaging boom, comprising a main body and a chain tensioner coupled to the main body at the upper end thereof, and an auxiliary power supply arranged to provide power to the lifting means in the event of failure of the main power supply.
Inventors:
GEELHOED JACK (GB)
Application Number:
PCT/EP2019/079568
Publication Date:
July 23, 2020
Filing Date:
October 29, 2019
Export Citation:
Assignee:
MASTENBROEK LTD (GB)
International Classes:
E02F5/14; E02D17/13; E02F9/08
Foreign References:
| JP2007146554A | 2007-06-14 | |||
| GB2431676A | 2007-05-02 | |||
| US4290495A | 1981-09-22 | |||
| US5540006A | 1996-07-30 | |||
| EP0080802A1 | 1983-06-08 |
Attorney, Agent or Firm:
BECK GREENER LLP (GB)
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