Device for transferring articles between oppositely running conveyors

• US 6,182,812 B1
• Filed: 07/30/1999
• Issued: 02/06/2001
• Est. Priority Date: 07/30/1999
• Status: Expired due to Term

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Hartness International Inc. (Illinois Tool Works Inc.)
• Inventors: Hartness, Thomas P., Hartness, William R. III, Cooley, David N.
• Primary Examiner(s): Bidwell, James R.
• Application Number:
  US09/365,119
• Time in Patent Office: 557 Days
• Field of Search: 198/364, 198/452, 198/597, 198/598, 198/457.05
• US Class Current: 198/364
• CPC Class Codes: B65G 47/5131 by relative displacement between conveyors or conveyor parts and bridging means therebetween
• CPC Class Codes: B65G 47/766 Adjustable ploughs or transverse scrapers

Abstract

An apparatus is provided for controlling the flow of articles. The apparatus includes a first conveyor driven in a first direction and a second conveyor driven in a second opposite direction. The conveyors extend in a side-by-side and parallel relationship with a space defined therebetween. A movable transport member is disposed within the space between the conveyors and defines a bridge that extends across the space and is generally flush with the upper surfaces of the conveyors. The transport member is drivingly engaged by the conveyors so as to move linearly between the conveyors depending on a speed differential of the conveyors. An article transfer member is carried by the transport member and is disposed transversely to the conveyors to contact and transfer the articles from the first conveyor over the bridge member and onto the second conveyor.

Claims

1. An apparatus for controlling the flow of articles, comprising:

a first conveyor driven in a first direction to convey articles thereon in said first direction, and a second conveyor driven in a second direction opposite to said first direction to convey articles thereon in said second direction;

said first and second conveyors extending side-by-side and parallel with a space defined therebetween;

a movable transport member disposed within said space defined between said conveyors and comprising a bridge extending between said conveyors and generally flush with upper surfaces of said conveyors;

said transport member drivingly engaged by both of said conveyors so as to move linearly between said conveyors depending on a speed differential between said conveyors causing said transport member to move in the direction of the faster of said conveyors; and

an article transfer member carried by said transport member and operably disposed transversely to said conveyors to contact and transfer articles from said first conveyor to said second conveyor.

2. The apparatus as in claim 1, wherein said transport member comprises a drive wheel simultaneously engaged by drive lugs on each of said conveyors so as to continuously rotate so long as at least one of said conveyors is moving.

3. The apparatus as in claim 1, wherein said bridge comprises a deformable rail member having dimensions so as to fit between said conveyors over a length thereof.

4. The apparatus as in claim 3, wherein said rail member comprises a plurality of pivotally connected links having an upper surface generally flush with said upper surfaces of said conveyors.

5. The apparatus as in claim 4, wherein said conveyors comprises guide channels on inside facing edges thereof, said links moveable in and along said guide channels.

6. The apparatus as in claim 5, wherein said conveyors comprise individual interconnected segments, said guide channels formed integral with said segments.

7. The apparatus as in claim 1, wherein said article transfer member comprises a deflecting bar member carried by said transport member, said bar member having a length so as to extend at least across said first conveyor.

8. The apparatus as in claim 1, further comprising a deflecting rail carried by said transport member longitudinally distanced from said bridge and oriented so as to deflect articles transferred from said first conveyor over said bridge to a middle portion of said second conveyor.

9. The apparatus as in claim 8, wherein said deflecting rail is spring loaded towards said second conveyor.

10. The apparatus as in claim 1, wherein said transport member comprises a carriage connected at one end to a drive wheel and at an opposite end to a support wheel, said drive wheel having teeth engaged with drive lugs on said conveyors, said article transfer member carried by said carriage.

11. The apparatus as in claim 10, wherein said bridge comprises a deformable rail having an end connected to said carriage.

12. An apparatus for controlling the flow of articles, comprising:

a first conveyor driven in a first direction to convey articles thereon in said first direction, and a second conveyor driven in a second direction opposite to said first direction to convey articles thereon in said second direction;

said first and second conveyors extending side-by-side and parallel with a space defined therebetween;

a carriage member having a drive wheel engaged with drive lugs on each of said conveyors so that said carriage member moves along said conveyors depending on a speed differential between said conveyors causing said carriage member to move in the direction of the faster of said conveyors;

a longitudinally extending deformable rail member attached to said carriage member so as to move therewith relative to said conveyors, said rail member disposed between said conveyors and having an upper surface generally flush with an upper surface of each of said conveyors; and

an article transfer member carried by said carriage member and extending across at least a portion of said first conveyor so that articles on said first conveyor are deflected by said transfer member over said rail member and onto said second conveyor.

13. The apparatus as in claim 12, wherein said carriage member further comprises a support wheel longitudinally distanced from said drive wheel.

14. The apparatus as in claim 12, wherein said rail member comprises a plurality of interconnected links, said links moveable within and along channels defined on facing edges of said conveyors.

15. The apparatus as in claim 12, further comprising a deflecting rail carried by said rail member longitudinally distanced from said carriage member and oriented so as to deflect articles transferred from said first conveyor over rail member to a middle portion of said second conveyor.

16. The apparatus as in claim 15, wherein said deflecting rail is spring loaded towards said second conveyor.