EP 3816507 A1 20210505 - TELESCOPIC MAST
Title (en)
TELESCOPIC MAST
Title (de)
TELESKOPMAST
Title (fr)
MÂT TÉLESCOPIQUE
Publication
Application
Priority
ES 201931787 U 20191031
Abstract (en)
A safety brake for telescopic mast of several segments, of the type used in masts of light, surveillance or communication towers, wherein it comprises at least one retractable reel (14), firmly attached on the upper part of an external segment (8) of the telescopic mast (3) of the light, surveillance or communication tower (1), on which is wound a belt, cable or rope (15), finished at its free end in a securing piece (16), firmly attached on the lower internal part of an internal segment (9) of the telescopic mast (3), the belt, cable or rope (15) passing through the gap between both segments, the retractable reel (14) having means for winding and unwinding the said belt, cable or rope (15), having means for detecting a higher acceleration in the extraction of the belt, cable or rope (15) than that preset, and having means for blocking the belt, cable or rope (15) in the event of a higher acceleration in the extraction of the belt, cable or rope (15) than that preset. The safety brake for telescopic mast of several segments of light, surveillance or communication towers presented herein, affords numerous advantages over the devices currently available, the most important of these being that it prevents the total or partial collapse of the mast due to a malfunction of the latter. Another important advantage is that it guarantees greater safety for the operator during the use of the light, surveillance or communication tower, while the mast is totally or partially deployed. A further advantage of this invention is that the safety device enables the telescopic movement between the first mast element and second mast element to be blocked when the system descends at an uncontrolled speed, due, for example to a breakage of the cable.
IPC 8 full level
B66C 1/00 (2006.01); E04H 12/18 (2006.01); F21V 21/22 (2006.01); F21V 25/00 (2006.01)
CPC (source: EP)
E04H 12/182 (2013.01)
Citation (applicant)
- ES 2630766 A1 20170823 - GRUPOS ELECTROGENOS EUROPA S A [ES]
- CN 202746979 U 20130220 - SHANDONG ROADWAY CONSTR MACH MFG CO LTD
- ES 1211939 U 20180509 - FANTEK IND S L [ES]
- ES 145552 A1 19400816 - NEALE JOHN ERNEST, et al
- ES 166981 A1 19450201 - CROMOGENIA Y QUIM CURTIENSE S A
Citation (search report)
- [XI] DE 3513405 A1 19861023 - GEROH MECHANISCHE SYSTEME [DE]
- [XI] WO 2009030782 A1 20090312 - KNOCK TELECOM S A [ES], et al
- [AD] CN 202746979 U 20130220 - SHANDONG ROADWAY CONSTR MACH MFG CO LTD
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 3816507 A1 20210505; CN 218234554 U 20230106; ES 1239006 U 20191226; ES 1239006 Y 20200318
DOCDB simple family (application)
EP 20190785 A 20200812; CN 202022382780 U 20201023; ES 201931787 U 20191031