Patent · US Expired

Cable tensioning device for elevators

US5398781A · kind A · utility

16Cited by
3References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 5, 1993
Grant dateMar 21, 1995
Priority date
Expiry dateFeb 5, 2013

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66B11/009
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

The invention deals with a cable tensioning system for elevators with separate drive cable and support cable lines 10, 11, which both engage at an elevator cabin 12 and also at a counterweight 13, characterized in that the cable tensioning system comprises a rocker 20 configured as a lever and supported at the counterweight 13 or the elevator cab 12, at which rocker the support cable 11 and the drive cable 10 are fastened to be spaced from each other, that the spacing ratio a:b of the attachment points 31, 32 of the cable lines 10, 12 at the rocker 20 from the support point 21 of the rocker 20 at the counterweight 13 or the elevator cab 12 define the cable tension or pull ratio required for the driving capacity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.