EP 0702661 A1 19960327 - TELESCOPIC BOOM
Title (en)
TELESCOPIC BOOM
Title (de)
TELESKOPIERBARER AUSLEGER
Title (fr)
FLECHE TELESCOPIQUE
Publication
Application
Priority
- DE 9308993 U 19930616
- EP 9401965 W 19940616
Abstract (en)
[origin: WO9429212A1] The invention pertains to a telescopic boom with at least one outer structure (14) and at least one inner structure (16), each of which is designed as a hollow section with upper flange (1) and lower flange (2), the upper flange (1) having a half-basket profile with two rounded edges (Ri, Ra) to which the lower flange (2) is joined with a liner of an essentially U-shaped profile, and each structure being mounted on the adjoining structure with a front and a back bearing (3, 4). To achieve a stable bearing of the structures and a great usable extension length with this boom under high force level, the invention proposes that the front bearing (3) has a slide element (10) in the area between the lower flanges (2) only in the region of the curve, and the back bearing (4) has a separate plain bearing half liner (12) in the area between the upper flanges (1) only in the region of each rounded corner (Ri, Ra).
IPC 1-7
IPC 8 full level
B66C 23/687 (2006.01); B66C 23/697 (2006.01); B66C 23/70 (2006.01)
CPC (source: EP)
B66C 23/701 (2013.01); B66C 23/707 (2013.01)
Citation (search report)
See references of WO 9429212A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 9308993 U1 19930812; CN 1127497 A 19960724; DE 59404835 D1 19980129; EP 0702661 A1 19960327; EP 0702661 B1 19971217; JP 2828779 B2 19981125; JP H09501384 A 19970210; WO 9429212 A1 19941222
DOCDB simple family (application)
DE 9308993 U 19930616; CN 94192795 A 19940616; DE 59404835 T 19940616; EP 9401965 W 19940616; EP 94920945 A 19940616; JP 50135295 A 19940616