Elevator brake mechanism and/or safety gear with welded brake lining
US10060491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | May 31, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2069/0491
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An elevator system with an elevator car, elevator en guide rails, at least one braking rail, and a brake mechanism and/or safety gear that determines the elevator car movement when activated and in turn has at least one brake block that cooperates with the braking rail. The active surface of this brake block that comes into contact with the braking rail functioning as the brake lining is at least one welding bead whose surface hardness is greater than surface hardness of the braking rail. A method for manufacturing such an elevator brake block includes welding at least two welding beads on a brake lining support composed of a weldable, preferably low-alloyed steel, which constitutes the brake lining that is brought into frictional contact with the braking rail during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.