Vertically shiftable conveyor device

• US 3,876,059 A
• Filed: 06/25/1973
• Issued: 04/08/1975
• Est. Priority Date: 06/29/1972
• Status: Expired due to Term

• Current Assignee: Walter Durst
• Original Assignee: Walter Durst
• Inventors: Durst, Walter
• Primary Examiner(s): Blunk, Evon C.
• Assistant Examiner(s): Watts, Douglas D.
• Application Number:
  US05/373,036
• Time in Patent Office: 652 Days
• Field of Search: 198/77,126 214/14
• US Class Current: 198/519
• CPC Class Codes: B65G 2814/0397 for ships
• CPC Class Codes: B65G 67/00 Loading or unloading vehicles by means incorporated in the vehicles B60-B64, e.g., B60P1/00, B61D9/00, B63B27/00, B64D9/00; ground or aircraft-carrier-deck installations for aircraft B64F1/32

Abstract

A conveyor device comprises a guide which adapted to be mounted on a support in either in a fixed position or as to be movable therealong and it defines a guideway for the vertical displaceable movement of a vertically elongated upright position of an endless conveyor support structure which also includes a horizontally extending section at its lower end. The conveyor support structure carries a plurality of guide pulleys or rollers with two arranged in spaced location on the horizontally extending portion and one carried at the upper end of the vertically extending portion. The guide is advantageously carried on a jib or boom which may be positioned adjacent a carrier such as ship and swung over the ship in order to orient the conveyor structure in this ship for unloading. For this purpose, the conveyor comprises an endless conveyor which has scoops or buckets which are guided over the rollers or pulleys of the conveyor support structure and over two additional rollers or pulleys which are arranged in a spaced relationship on a fixed portion of the guide structure on the supporting beam. The fixed pulleys are arranged so that they guide the endless conveyor in a downward direction over a receiving conveyor which is carried on the boom so that the material is dropped out of the buckets. The buckets pick up the material when they are guided by the rollers at the lower end of the conveyor support downwardly and around into the material to be picked up and then are moved upwardly to the fixed support rollers. The support structure may be shifted vertically in its guide to change the location of the lowermost reach of the conveyor so that the conveyor device may be immediately adjusted to the loading material height.

Claims

1. A bucket conveyor device, comprising guide means defining a vertical guideway, a conveyor roller support frame movable along said guideway and carrying an upper endless conveyor guide roller adjacent its upper end at at least one lower endless conveyor guide roller adjacent its lower end, conveyor guide roller means carried on said guide means, an endless conveyor guided over said upper and lower conveyor rollers and over said guide roller means, a plurality of open topped buckets connected to said endless conveyor adjacent their tops at spaced locations along the length of said conveyor, said guide roller means including a series of spaced rollers guiding said endless conveyor including a reverse guide roller adjacent the upper conveyor roller guiding said endless conveyor on a side thereof opposite to the side which is engaged by said upper conveyor roller and positioned so as to direct said endless conveyor with the associated buckets through a downward path to dump said buckets, a supporting structure adapted to be moved alongside a carrier loading space, a support arm having an end pivoted to said support structure, a mast carried by said support structure and having a traction member connected therefrom to said outer end of said support arm, said guide means including a guide member carried by said support arm and defining said vertical guideway.

2. A conveyor device, according to claim 1, wherein said conveyor roller support frame comprises a substantially L-shaped member including a vertically extending upright portion and a horizontally extending lower portion, said at least one endless conveyor guide roller adjacent to the lower end of said structure comprising two transversely spaced guide rollers carried by said horizontally extending lower portion of said support frame.

3. A conveyor, according to claim 1, including means conneected to said conveyor roller support frame to shift said support frame in said guide means.

4. A conveyor, according to claim 3, including a support structure carrying said guide means and a pulley block system extending between said support structure and the lower portion of said support frame for raising and lowering said support frame in said guide.

5. A conveyor device, according to claim 1, wherein said conveyor guide roller means comprises a supoort arm, a tubular guide member carried on said support arm and defining said vertical guideway.

6. A conveyor device, according to claim 5, wherein said guideway is movable along said support arm.

7. A device, according to claim 1, wherein the roller of said guide roller means which is adjacent to said upper conveyor guide roller comprises a reversing roller arranged below said upper guide roller and exteriorly of said endless conveyor.

8. A conveyor, according to claim 1, wherein said guide means includes a support structure, said guide roller means including a support guide roller mounted on said support structure spaced laterally from said reverse guide roller on the side thereof opposite to said upper conveyor guide roller, a material carry-off conveyor located below and between said support guide roller and said reverse guide roller in a location to receive material dumped by said buckets.

9. A bucket conveyor device according to claim 1, wherein said conveyor support comprises an L-shaped member having a vertical portion movable in said guideway and carrying said upper conveyor guide roller, and a horizontal portion carrying said lower roller, and at least one additional lower roller on said horizontal portion spaced laterally from said lower roller.