Self-cleaning, self-centering door track having an _integral mount

• US 4,483,045 A
• Filed: 06/20/1984
• Issued: 11/20/1984
• Est. Priority Date: 04/09/1982
• Status: Expired due to Fees

• Current Assignee: Erect-A-Tube, Inc.
• Original Assignee: Erect-A-Tube, Inc.
• Inventors: Twedt, Lynn O., Herkert, Klaus H., Shelton, Kenneth B.
• Primary Examiner(s): SILVERBERG, FRED A
• Application Number:
  US06/622,389
• Time in Patent Office: 153 Days
• Field of Search: 16/87.4 R, 16/87.4 W, 16/87.6 R, 16/87.6 W, 16/87.8, 16/95 R, 16/95 W, 16/95 D, 16/95 DW, 16/96 R, 16/96 D, 16/96 L, 16/102, 104/94, 104/107, 104/108, 104/109
• US Class Current: 16/95.00R
• CPC Class Codes: E05D 15/063 on wheels with fixed axis
• CPC Class Codes: E05Y 2900/132 Doors

Abstract

A door track adapted for carrying a trolley supporting a door for rolling movement. The door track includes one or more single-piece track members having a first substantially planar surface and a pair of substantially identical spaced apart portions extending from the first substantially planar surface and forming a channel with the first planar surface. The spaced apart portions each have a substantially planar portion adjacent the first substantially planar surface to provide a plurality of flat mounting surfaces. The spaced apart portions further include inwardly curved portions extending from the substantially planar portions which are adapted to support a trolley for rolling movement therealong. The inwardly curved portions are spaced apart to freely receive a door supporting member which is secured to the trolley. The track member may also include lip portions extending outwardly from the curved portions, and the substantially planar portions may define fastener receiving openings for bracket-less mounting of the track member to a supporting surface. With this construction, a self-cleaning, self-centering door track having integral mounting structure is provided.

Claims

1. A door track for carrying a trolley supporting a door for rolling movement, comprising:

a longitudinally extending top wall having a pair of parallel opposed side edges, said top wall being adapted for coplanar abutment with a generally horizontal surface such as a beam of a building;

a longitudinally extending side wall depending from each of said side edges of said top wall, said side walls being identically shaped and oppositely facing, said side walls each including a planar upper portion joined to one of said side edges of said top wall so as to be disposed generally perpendicular thereto with said planar upper portions of said side walls extending to a point generally intermediate the uppermost and lowermost extremes of said side walls and being adapted for coplanar abutment with a generally vertical surface such as a header of a building, said side walls each also including a curved lower portion integral with the corresponding one of said planar upper portions so as to be disposed generally tangentially thereto with said curved lower portions of said side walls each extending along a continuous downward and inward curve to a point of termination at the lowermost extreme of said side walls and being adapted for self-centering of said trolley for non-binding rolling movement, said side walls being spaced apart at the lowermost extreme to define a longitudinally extending opening for freely receiving a door support of said trolley, said door track being self-cleaning by gravity and movement of said trolley; and

integral mounting means associated with said longitudinally extending top wall and said longitudinally extending side walls, said mounting means associated with said top wall comprising a plurality of longitudinally spaced fastener-receiving openings, said mounting means associated with said side walls comprising a plurality of longitudinally spaced fastener-receiving openings, said fastener-receiving openings in said side walls comprising aligned pairs of apertures in said planar upper portions adjacent said top wall, whereby each of said aligned pairs of apertures in said sidewalls are adapted to have a single fastener extending therethrough.

2. The door track as defined by claim 1 wherein said curved lower portions of said side walls each include an outwardly turned lip portion at the lowermost extreme of said side walls.