Rotary guideway switch for people mover systems
US4970967A · 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 primaryE01B25/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotary switch for a people mover guideway having a predetermined tire path, guidebeam and electric rail configuration routes a transit car from one entry guideway path to at least either of two exit guideway paths or vice versa. The switch has an elongated structural frame that has guidebeam, electric rail and tire path structure compatible with the guideway configuration to provide car routing to one of the two exit paths on one switch side and to provide car routing to the other of the two exit paths on another switch side. Switching is achieved by rotating a movable part of the switch 180 degrees about its longitudinal axis. First and second shafts support the two ends of the switch frame and one of the shafts is driven to rotate the switch frame between first and second rotational positions in which the switch is locked and the switch sides respectively line up with the guideway configuration. The frame is supported in fixed longitudinal relation to one of the shafts and in longitudinally expandable relation to the other of the shafts to allow the frame to expand and contract longitudinally under thermal and/or car loading and thus permit frame deflection to occur about the s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.