Back to results
US 2003/0110975 A1Published application
Spring assisted apparatus for ramp actuating mechanism and movable draft arm arrangement
AssigneeWestinghouse Air Brake Technologies Corporation
InventorWei Li
Life of this patent
Estimating the term…
Abstract
A ramp actuating mechanism for a rail vehicle having a movable ramp and a movable draft arm and coupler arrangement, wherein a spring assisted apparatus can be associated with the movable draft arm and coupler arrangement to counterbalance the load of the movable draft arm and coupler arrangement.
Claims5
A ramp actuating apparatus for a rail vehicle having a ramp movable between deployed and stored positions and a draft arm and coupler arrangement movable between lowered and raised positions, said ramp actuating apparatus comprising:
- a. a first portion connected to said ramp and controllable to move said ramp between said deployed and stored positions;
- b. a second portion coupled to said first portion and to said draft arm and coupler arrangement, said second portion having a resiliently compressible member;
- and
- c. said first portion causing said second portion to move said draft arm and coupler arrangement to said lowered position when said first portion moves said ramp to said deployed position, and said first portion causing said second portion to move said draft arm and coupler arrangement to said raised position when said first portion moves said ramp to said stored position.
1 more element
Dependencies are inferred from the claim text.