EP 1678060 B1 20110504 - PASSENGER CONVEYOR DRIVE MONITORING ARRANGEMENT WITH BRAKE ACTUATION
Title (en)
PASSENGER CONVEYOR DRIVE MONITORING ARRANGEMENT WITH BRAKE ACTUATION
Title (de)
PERSONENBEFÖRDERUNGSEINRICHTUNGSANTRIEBS-ÜBERWACHUNGSANORDNUNG MIT BREMSBETÄTIGUNG
Title (fr)
DISPOSITIF DE SURVEILLANCE EQUIPE D'UN MECANISME D'ARRET D'URGENCE, DESTINE A UN ORGANE D'ENTRAINEMENT D'ESCALIER MECANIQUE
Publication
Application
Priority
US 0334258 W 20031029
Abstract (en)
[origin: WO2005051811A1] A passenger conveyor drive assembly (40) includes drive members such as belts (42) that engage a step chain (30). A monitoring device (50) provides an indication of a damaged or broken drive member (42) by monitoring the relative rotations between wheels (44, 46). In one example, relative rotation between deflection wheels (46) provides an indication that one of the drive members (42) is not performing as well as the other. In another example, a comparison between the speed of rotation of the drive wheels (44) on the one hand and the deflection wheels (46) on the other hand allows for independently monitoring each of the drive members (42) of the drive assembly. In a disclosed embodiment, the monitoring device includes rotating members (52, 56) that normally rotate in unison and move into another position when there is relative rotation between the selected wheels. Such movement provides an indication of a malfunction of the drive system and may actuate the brake as needed.
IPC 8 full level
B65G 43/00 (2006.01); B66B 25/00 (2006.01); B66B 29/00 (2006.01)
CPC (source: EP)
B66B 23/028 (2013.01); B66B 25/006 (2013.01); B66B 29/005 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005051811 A1 20050609; AT E508079 T1 20110515; AU 2003285085 A1 20050617; CN 1860074 A 20061108; CN 1860074 B 20100602; DE 60337037 D1 20110616; EP 1678060 A1 20060712; EP 1678060 A4 20090722; EP 1678060 B1 20110504; HK 1098443 A1 20070720; JP 2007521207 A 20070802; JP 4783148 B2 20110928
DOCDB simple family (application)
US 0334258 W 20031029; AT 03779401 T 20031029; AU 2003285085 A 20031029; CN 200380110623 A 20031029; DE 60337037 T 20031029; EP 03779401 A 20031029; HK 07104709 A 20070503; JP 2005510949 A 20031029