Patent · US Expired

Equipment for carrying out operations in an elevator shaft

US6419052B1 · kind B1 · utility

9Cited by
1References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 4, 2000
Grant dateJul 16, 2002
Priority date
Expiry dateMay 4, 2020

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66B11/0246
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A maintenance trestle is stowable in folded-together form in the hatch cover of an elevator car. The maintenance trestle is erected by tilting the hatch cover into the car interior about a first fulcrum. The maintenance trestle is now accessible in folded-together form and includes transverse connectors. Several supports arranged in the car walls are pivotable into the car and are engaged by the transverse connectors. The transverse connectors carry plates forming a platform for supporting a person. Stays for stabilizing the maintenance trestle diagonally extend between the supports and the car floor.

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