Patent ID: 8550215
Filing Date: 2013-10-08
Classification: B66B

Abstract:
1. A stairlift including a stairlift rail having an upper end and a lower end; a carriage displaceable along said rail, a chair mounted on said carriage; and a manually operable swivel mechanism operable to allow said chair to swivel only about a single substantially vertical axis yet being configured to prevent said chair being swiveled in a downhill direction at the upper end of said rail and being further configured to prevent said chair being swiveled in an uphill direction at the lower end of said rail, said swivel mechanism including a fixed index plate having a central indent defining a running position for said chair; an end indent on either side of said central indent to define swiveled positions of said chair; a pin mounted on and moveable with said chair, said pin being displaceable into and out of each of said indents; and a moving stop mounted on said index plate and being displaceable between positions to either side of said central indent, said moving stop being configured and operable to confine movement of said pin between said central indent and only one of said end indents.