EP 0733021 B1 19971119 - TELESCOPIC BOOM WITH MULTISTAGE HYDRAULIC CYLINDER
Title (en)
TELESCOPIC BOOM WITH MULTISTAGE HYDRAULIC CYLINDER
Title (de)
TELESKOPIERBARER AUSLEGER MIT MEHRSTUFIGEM HYDRAULIKZYLINDER
Title (fr)
FLECHE TELESCOPIQUE A VERIN HYDRAULIQUE A PLUSIEURS ETAGES
Publication
Application
Priority
- DE 9318847 U 19931208
- DE 9408289 U 19940519
- EP 9404043 W 19941205
Abstract (en)
[origin: US5813552A] PCT No. PCT/EP94/04043 Sec. 371 Date Sep. 26, 1996 Sec. 102(e) Date Sep. 26, 1996 PCT Filed Dec. 5, 1994 PCT Pub. No. WO95/15911 PCT Pub. Date Jun. 15, 1995A telescopic boom contains a multistage hydraulic cylinder for extending and retracting the boom parts. The telescopic boom is characterized in that a first component of a supporting device is secured to at least one cylinder and in that a second component of the supporting device is secured to a least one telescopic boom part. The second component co-operates with the first component to support the hydraulic cylinder on the boom parts. The first component of the supporting device is shaped as two opposing claws and the second component is shaped as two opposing rails or rail sections. The claws grasp the rails or rail sections, and the rails or rail sections are provided on the inner wall part of the boom part.
IPC 1-7
IPC 8 full level
E02F 3/39 (2006.01); B66C 23/687 (2006.01); B66C 23/697 (2006.01); B66C 23/70 (2006.01); B66F 9/06 (2006.01); B66F 11/04 (2006.01); F15B 15/16 (2006.01)
CPC (source: EP US)
B66C 23/701 (2013.01 - EP US); B66C 23/705 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 5813552 A 19980929; EP 0733021 A1 19960925; EP 0733021 B1 19971119; JP 2828781 B2 19981125; JP H09506320 A 19970624; WO 9515911 A1 19950615
DOCDB simple family (application)
US 66325496 A 19960926; EP 9404043 W 19941205; EP 95904422 A 19941205; JP 51596495 A 19941205