Safety locking structure for a rotary guideway switch
US4970965A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1988 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Jun 27, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B25/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotary switch is provided for a people mover guideway having a predetermined tire path, guidebeam and electric rail configuration. The rotary switch routes a transit car from one entry guideway path to at least either of the two exit guideway paths or vice versa. A movable elongated structural switch frame member has guidebeam, electric rail and tire path structure on one side compatibly with the guideway configuration to provide car routing to one of the two exit paths in one of two switch positions; the movable switch frame further has guidebeam, electric rail and tire path structure on another side compatibly with the guideway configuration to provide car routing to the other of the two exit paths in the second switch position. Switching is achieved by rotating a movable part of the switch 180.degree. degrees about its longitudinal axis. A first fixed frame supports a drive shaft which in turn supports a first end of the movable switch frame. A second fixed frame supports a second shaft which in turn supports the second end of the movable switch frame. The movable frame is locked in either of its two positions by a first pair of lock pins for one end of the movable switch fram…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.