Patent ID: 9688477
Date: 2017-06-27
CPC Classifications: B07C,B65G,G05B,Y02P

Claim:
1. Item sorting system comprising movable carriages ( 10 ) intended for conveying items ( 7 ) and connected together by a link ( 19 , 20 ) along a travel route ( 1 ) having sections situated at different elevation levels connected by one or more ascent and descent slopes (P), a control system ( 22 ) and drive units ( 13 ) intended for advancing the carriages ( 10 ) and controlled by the control system ( 22 ), characterised in that it comprises at least one dedicated thrust unit ( 131 , 241 , 261 ) separate from the drive units ( 13 ), present on at least one of the slopes (P), and controlled in a unitary manner by the control system ( 22 ) so as to deliver a force (R) to reduce or cancel the tension or the compression to which the carriages ( 10 ) are subjected at the level of the links ( 19 , 20 ) which would be due to the weight of the carriages ( 10 ) and/or of the items ( 7 ) present on said slope (P).