EP 3312436 A1 20180425 - ANTI-RUPTURE TUBE DEVICE
Title (en)
ANTI-RUPTURE TUBE DEVICE
Title (de)
ANTI-ROHRBRUCH APPARATUS
Title (fr)
DISPOSITIF DE TUBE ANTI-RUPTURE
Publication
Application
Priority
IT 201600106112 A 20161021
Abstract (en)
A hydraulic tube rupture protection device is disclosed that ensures safety conditions in the event of rupture of a flexible tube connected to a hydraulic actuator of an arm of an excavator, in which the tube rupture protection device comprises a control valve controlled by a pilot line connected to a control member that is manoeuvrable by an operator, a logic element is arranged on a connecting line that connects the pilot line to the flexible tube; in the event of rupture of the flexible tube, without moving the control member, the logic element will open at least partially, causing the at least partial closure of the control valve, limiting the descent speed of the arm of the excavator.
IPC 8 full level
F15B 20/00 (2006.01); E02F 9/22 (2006.01); F15B 13/02 (2006.01); F15B 13/042 (2006.01)
CPC (source: EP)
F15B 13/023 (2013.01); F15B 13/0422 (2013.01); F15B 20/005 (2013.01); E02F 9/226 (2013.01); F15B 2211/8636 (2013.01)
Citation (search report)
- [IY] JP 4890147 B2 20120307
- [YA] GB 2514112 A 20141119 - CATERPILLAR INC [US]
- [YA] JP 2014206245 A 20141030 - KOBELCO CONSTR MACHINERY LTD
- [A] EP 1387089 A2 20040204 - KOBELCO CONSTR MACHINERY LTD [JP]
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3312436 A1 20180425; EP 3312436 B1 20211229; IT 201600106112 A1 20180421
DOCDB simple family (application)
EP 17197491 A 20171020; IT 201600106112 A 20161021