Patent ID: 8651241
Filing Date: 2014-02-18
Classification: B66B

Abstract:
1. An elevator system having a first, lower elevator car and a second upper elevator car, which cars are movable along a common travel path, comprising: a first supporting and traction means supporting the first elevator car with a 1:2 suspension and which has two ends each guided by a respective deflecting roller; a first counterweight coupled to said first supporting and traction means; a first lower cable coupled to the first elevator car wherein said first lower cable is connected with the first elevator car in a 1:1 suspension and is tensioned by a first tensioning device, said first lower cable being mounted by one first lower cable end on the first elevator car and fastened by another first lower cable end to said first counterweight; a second supporting and traction means supporting the second elevator car; a second counterweight coupled to said second supporting and traction means; and a second lower cable coupled to the second elevator car, wherein said second supporting and traction means supports the second elevator car with a 1:1 suspension and is suspended at least approximately centrally at the second elevator car and said second lower cable is connected in a 1:2 suspension with the second elevator car and is tensioned by a second tensioning device, said second lower cable having two lower cable ends each guided by a respective lower cable-deflecting roller that is disposed at least partly outside a lateral width of said second elevator car and at least partly outside a lateral width of said first elevator car, wherein a first of said second lower cable ends is fastened at a first fastening point and a second of said second lower cable ends is fastened at a second fastening point, wherein said deflecting rollers for said first supporting and traction means and said deflecting rollers for said second lower cable are arranged at different horizontal spacings and are at least approximately centrally symmetrically diagonally with respect to one another, wherein a first plane along which said deflecting rollers for said first supporting and traction means are aligned is at an angle to a second plane along which said deflecting rollers for said second supporting and tractions means are aligned, a line parallel and approximately central to the common travel path defined by an intersection of said first plane and said second plane, said deflecting rollers for said first supporting and traction means spaced apart substantially evenly from the line, and said deflecting rollers for said second supporting and traction means spaced apart substantially evenly from the line.