Elevator guide rail
US12240734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2023 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Nov 30, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D39/031
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A guide rail for an elevator system has an elongate length with a cross-section perpendicular to the length; the cross-section including a base section for mounting to a wall of a hoistway, and a blade section extending from the base section; the blade section including a guide surface for interacting with a guide element of a component movable in the elevator hoistway; the guide rail including: a pair of separate rail piece parts fixed together to form the guide rail; the pair of separate rail piece parts including a first rail piece part and a second rail piece part; the first rail piece part being formed from a first thickness of sheet material bent to have a cross-section of a first predetermined shape, and the second rail piece part being formed from a second thickness of sheet material bent to have a cross-section of a second predetermined shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.