EP 0150977 A2 19850807 - Earth drill.
Title (en)
Earth drill.
Title (de)
Erdbohrmaschine.
Title (fr)
Machine de forage du sol.
Publication
Application
Priority
GB 8402147 A 19840127
Abstract (en)
The present invention provides an earth drill in which a rotatable drill table and a support mast are carried at the front of a motive unit which can be rotated by an operator about a substantially vertical axis to slew the drill table into and out of register with the hole to be made by a drill auger driven by the drill table by means of a drill kelly characterised in that the operator is to be located offset to one side of the centre line of the mast, in that the drill table 3 is carried offset to that side of the support mast 2 with the axis of rotation of the drill kelly 10 mounted in the drill table 3 lying substantially on the circumference of a circle having its centre as the axis of rotation of the motive unit 1; thus providing the operator with an unobtructed view of the drill tip so as to aid location of the drill in the ground. Preferably, there are provided means 4 for supporting one or more tubes for lining the hole drilled by the auger, the support means 4 being located substantially symmetrically to the side of the mast 4 opposed to the drill table 3 whereby the axis of the tubes supported by the support means 4 are located substantially on the circumference of the same circle as the axis of the drill kelly 10.
IPC 1-7
IPC 8 full level
E02D 7/16 (2006.01); E02D 7/26 (2006.01); E21B 3/04 (2006.01); E21B 7/02 (2006.01)
CPC (source: EP)
E02D 7/16 (2013.01); E02D 7/26 (2013.01); E21B 3/04 (2013.01); E21B 7/021 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0150977 A2 19850807; EP 0150977 A3 19850821; GB 8402147 D0 19840229
DOCDB simple family (application)
EP 85300424 A 19850123; GB 8402147 A 19840127