Patent · US Expired

Compensation and rope elongation arrangement

US5513724A · kind A · utility

23Cited by
6References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 5, 1994
Grant dateMay 7, 1996
Priority date
Expiry dateApr 5, 2014

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66B7/1215
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

The invention relates to a compensation system in an elevator comprising an elevator car (2), a counterweight (3), a set of elevator suspension ropes (11) on which the elevator car (2) and the counterweight (3) are suspended, a traction sheave (5) whose motion is transmitted via the suspension ropes (11) to the elevator car (2) and to the counterweight (3), and a set of compensating ropes (4) and at least one diverting pulley (15) belonging to the suspension rope system (11) and at least one buffer arrangement (9) for the counterweight (3). The suspension ratio of the compensating rope (4) is the same as that of the suspension ropes (11), or multiplied by a coefficient. The rope suspension ratio on the side of the elevator car (2) is the same as or different than on the side of the counterweight (3). For the compensation of the elongation of the suspension and compensating ropes (11 and 4) of the elevator, a buffer (23) below the counterweight (3) has a provision for vertical adjustment.

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