Sliding door
First Claim
1. A vertically operable vehicle door assembly for a vehiclecomprising a frame attached to the vehicle,support members pivotally attached to the frame, the support members having a first set of racks to permit the support members to move,horizontal rack means attached proximate a top of the support members and the vehicle for moving the support members out and away from the vehicle,a box frame enclosing the suport members,pinions mounted in the box frame for engaging with the first set of racks to permit vertical movement of the box frame along the support members,a second set of racks in the box frame to allow further upward movement of the box frame,a door, andpinions attached to the door to engage the second set of racks to permit vertical movement of the door with respect to the box frame.
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Accused Products
Abstract
The present invention is directed to a sliding door. The bottom of the door assembly is pivotally mounted to a base. To open the door, the top of the door assembly is pulled away from the opening, to clear the structure. Then the door, which is mounted on vertical guiides, is rolled on these guides to provide an unobstructed opening. The door can be in close quarters, and when open does not interfere with movement into or out of the structure. This invention pertains to doors, windows, hatches, trap doors, skylights or any other temporary closable or openable opening in a structure where it can be utilized.
21 Citations
3 Claims
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1. A vertically operable vehicle door assembly for a vehicle
comprising a frame attached to the vehicle, support members pivotally attached to the frame, the support members having a first set of racks to permit the support members to move, horizontal rack means attached proximate a top of the support members and the vehicle for moving the support members out and away from the vehicle, a box frame enclosing the suport members, pinions mounted in the box frame for engaging with the first set of racks to permit vertical movement of the box frame along the support members, a second set of racks in the box frame to allow further upward movement of the box frame, a door, and pinions attached to the door to engage the second set of racks to permit vertical movement of the door with respect to the box frame.
Specification