Patent · US Active

Self-aligning platform mechanism for low-floor vehicles access device

US8517659B2 · kind B2 · utility

3Cited by
54References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 7, 2009
Grant dateAug 27, 2013
Priority date
Expiry dateFeb 15, 2030

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S414/134
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A mechanism for deploying and aligning a ramp relative to a platform includes a main bearing operatively associated with the platform and rotatable about a main pivot axis; a drive member disposed on the main bearing, the drive member being adapted to drive the main bearing to rotate about the main pivot axis; a rotating member disposed on the main bearing and rotatable about the main pivot axis with the main bearing; and a ramp member rotatably connected to the rotating member at a pivot point eccentric to the main pivot axis. Rotation of the rotating member causes the ramp member to move between a stowed position and a deployed position in an arcuate path about the main pivot axis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.