Title:
TROUGH DIGGING MACHINE FOR EMBEDDING PIPELINE
Document Type and Number:
Japanese Patent JPS60133130
Kind Code:
A
Abstract:
The plough has a front and a rear lifting assembly (60, 62) each including an arm (64, 80) which is extensible and angularly adjustable by hydraulic rams (65, 68; 81, 84). The arms carry rollers (74, 76, 78; 94, 96, 98) upon which the pipeline (110) is lifted by the arms. The plough can be positioned beneath the pipeline as the arms retract while supporting the pipeline as the plough approaches the pipeline from one side. Having been positioned, the plough advances to cut a trench, the pipeline being supported in yielding manner by the two arms, having their lifting rams (68, 84) connected to hydraulic accumulators. Pressurised gas in the accumulators maintains the rollers (74, 76; 94,96) in contact with the pipeline as the plough moves up and down and pitches relatively to the pipeline, during ploughing.The plough requires no structure over the pipeline. The plough body (12) is not required to comprise parts which separate to allow positioning of the plough of the plough in relation to the pipeline.
Inventors:
TEIMOSHII UIRIAMU GURINSUTETSU
ARAN RICHIYAADO RIISU
ARAN RICHIYAADO RIISU
Application Number:
JP24636784A
Publication Date:
July 16, 1985
Filing Date:
November 22, 1984
Export Citation:
Assignee:
SOIRU MACHINE DAINAMITSUKUSU L
International Classes:
E02F5/10; (IPC1-7): E02F5/10
Attorney, Agent or Firm:
Masaki Yamakawa