Safety device for elevator
US8584809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2009 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Oct 10, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/26
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In a safety device for an elevator, on one car door among a pair of car doors, a light-emitting/light-receiving unit is disposed facing downward at an upper end position of a vertical line separated by a predetermined distance from an end face in a closing direction, which is to abut the other car door, toward the side of the other car door, and a first reflecting member is disposed facing upward at a lower end position of the vertical line. A housing space that houses the light-emitting/light-receiving unit in a state where both car doors are closed is formed on the other car door, and a second reflecting member is disposed facing upward at a bottom portion of the housing space and extends from the same position as an end face in a closing direction of the other car door toward the back of the housing space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.