Self-aligning rotary guideway switch
US4970966A · kind A · utility
Assignee
Inventor
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 operates in a people mover guideway having a predetermined tire path, guidebeam and electric rail configuration to route 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 having 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. The switch frame member is further provided with 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. The switch is supported by first and second shafts at its two ends. One of the two shafts is driven to rotate the switch frame between first and second rotational positions corresponding to alignment of the respective switch sides with the guideway. The frame is locked in each position and a backup stop device holds the frame in position if the locking device fails to operate properly. The frame member and its guideway configuration structure are arranged in form and weight rlelative to the frame axis of rotation to provide (1) …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.