EP 3287588 B1 20190522 - MACHINE TOOL AND METHOD FOR MACHINING A SOIL
Title (en)
MACHINE TOOL AND METHOD FOR MACHINING A SOIL
Title (de)
ARBEITSMASCHINE UND VERFAHREN ZUM BEARBEITEN EINES BODENS
Title (fr)
MACHINE DE TRAVAIL ET PROCÉDÉ DESTINÉ AU TRAVAIL D'UN SOL
Publication
Application
Priority
EP 16185467 A 20160824
Abstract (en)
[origin: WO2018036713A1] The invention relates to a working machine and to a method for working a soil with the working machine, having a mast along which a top drive is moved vertically by means of an adjusting device, a telescopic Kelly linkage having at least two Kelly rods being displaced and guided by said top drive. According to the invention, the Kelly rods are automatically locked or unlocked by means of a control, an angle of rotation of at least one Kelly rod being detected by means of a first detection device and/or a force change, torque change or pressure change in a hydraulic system being detected by means of a second detection device. Dependent on the detected angle of rotation and/or the detected change, locking and/or unlocking of the Kelly rods is determined by means of the control.
IPC 8 full level
E21B 7/02 (2006.01); E21B 17/07 (2006.01); E21B 19/16 (2006.01)
CPC (source: EP RU US)
E21B 7/02 (2013.01 - EP RU US); E21B 7/027 (2013.01 - US); E21B 17/07 (2013.01 - EP RU US); E21B 19/165 (2013.01 - EP US); E02D 27/12 (2013.01 - EP US); E21B 7/021 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3287588 A1 20180228; EP 3287588 B1 20190522; CN 109563731 A 20190402; CN 109563731 B 20210413; JP 2019526724 A 20190919; JP 6790242 B2 20201125; MY 201894 A 20240322; RU 2722612 C1 20200602; US 11473375 B2 20221018; US 2019169941 A1 20190606; WO 2018036713 A1 20180301
DOCDB simple family (application)
EP 16185467 A 20160824; CN 201780051769 A 20170712; EP 2017067529 W 20170712; JP 2019510964 A 20170712; MY PI2019000719 A 20170712; RU 2019103255 A 20170712; US 201716323635 A 20170712