EP 0080038 B1 19860716 - TELESCOPIC JIB, IN PARTICULAR FOR INCLINED LIFTS
Title (en)
TELESCOPIC JIB, IN PARTICULAR FOR INCLINED LIFTS
Publication
Application
Priority
- DE 3137845 A 19810923
- DE 3137846 A 19810923
- DE 3137847 A 19810923
Abstract (en)
[origin: US4491196A] A telescopic beam for use in an inclined hoist has five telescopic members. An actuator comprising a motorized winch and a block and tackle arrangement is provided for extending the telescopic members relative to one another. The block and tackle arrangement includes a cable which passes several times around sets of rollers positioned at the adjacent ends of first and second of the telescopic members. A lock is provided for fixing the positions of the first and second telescopic members. To relieve the operator of the need for controlling several actuators, the single actuator is used to control the extension of all the telescopic members, and to control the angle of inclination of the last telescopic member relative to the penultimate telescopic member. For this purpose, the cable is passed from the second telescopic member to the far end of the penultimate telescopic member, and then to the adjacent end of the last telescopic member where it is secured.
IPC 1-7
IPC 8 full level
B66B 9/16 (2006.01); E06C 1/12 (2006.01); E06C 7/10 (2006.01); E06C 7/12 (2006.01)
CPC (source: EP US)
B66B 9/16 (2013.01 - EP US); E06C 1/125 (2013.01 - EP US); E06C 7/10 (2013.01 - EP US); E06C 7/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0080038 A2 19830601; EP 0080038 A3 19840523; EP 0080038 B1 19860716; DE 3272023 D1 19860821; US 4491196 A 19850101
DOCDB simple family (application)
EP 82108665 A 19820920; DE 3272023 T 19820920; US 42040982 A 19820920