Vertically-storing dock leveler apparatus and method

• US 7,131,160 B2
• Filed: 05/27/2004
• Issued: 11/07/2006
• Est. Priority Date: 05/27/2003
• Status: Active Grant

• Current Assignee: 4Front Engineered Solutions Incorporated (Assa Abloy AB)
• Original Assignee: SPX Dock Products, Inc. (Assa Abloy AB)
• Inventors: Alexander, James C., Hoofard, Richard
• Primary Examiner(s): Hartmann, Gary S.
• Application Number:
  US10/854,308
• Publication Number:
  US 20050028305A1
• Time in Patent Office: 894 Days
• Field of Search: 14/695, 14/711, 14/713
• US Class Current: 14/71.3
• CPC Class Codes: B65G 69/2835 with spring-operated means
• CPC Class Codes: B65G 69/2841 extensible by pivoting parts

Abstract

A dock leveler for bridging the gap between a loading dock and the bed of a vehicle parked at the loading dock. The dock leveler is configured for installation on the top of the dock and is designed to rotate from a vertically-stored raised position to at least one lowered, operative position. In some embodiments, the dock leveler can be lowered either for normal operation so that the deck assembly rests on the bed of the vehicle or it can be lowered to accommodate an end-loading condition.

Claims

1. A dock leveler comprising:

a support structure configured to be mounted to a top surface of a loading dock;

a deck assembly pivotally connected to the support structure by a pivot shaft located above the top surface of the loading dock, the deck assembly having a top surface;

a ramp defining a transition surface between the top surface of the loading dock and the deck assembly top surface, the ramp attached to the support structure and ending substantially at one end of the deck assembly; and

a spring configured to counterbalance the deck assembly.

2. The dock leveler of claim 1, wherein the transition surface is generally upwardly inclined from the top surface of the loading dock to the deck assembly.

3. The dock leveler of claim 1, wherein the deck assembly extends substantially beyond a dock face.

4. The dock leveler of claim 1, wherein the deck assembly stores in a substantially vertical position.

5. The dock leveler of claim 1, further comprising a lip pivotally attached to an end of the deck assembly opposite an end of the deck assembly pivotally connected to the support structure.

6. The dock leveler of claim 5, wherein the deck assembly of the dock leveler has a length permitting the lip to be in a pendent position and the deck assembly to be in a lowered position and the lip is behind the face of a bumpers.

7. The dock leveler of claim 1, wherein a top surface of a portion of the deck assembly located between a dock face and an end of the deck assembly is substantially in a single plane.

8. The dock leveler of claim 1, wherein the top surface of the deck assembly comprises at least two portions wherein each portion defines a surface in a different plane.

9. The dock leveler of claim 8, wherein a boundary between at least two portions of the top surface is located near a plane defined by a dock face when the deck assembly is in a lowest position.

10. The dock leveler of claim 1, wherein the top surface of deck assembly comprises at least three portions wherein each portion defines a surface in a different plane.

11. The dock leveler of claim 10, wherein a boundary between two of the at least three portions is located near a plane defined by a dock face when the deck assembly is in a lowest position.

12. The dock leveler of claim 1, wherein the deck assembly is contoured to permit an end of the deck assembly to achieve positions below a plane defined by the top surface of the loading dock.

13. The dock leveler of claim 1, further comprising at least one curb running along at least one side of the ramp.

14. The dock leveler of claim 1, further comprising at least one curb running along at least one side of the deck assembly.

15. The dock leveler of claim 1, wherein the support structure is attached only to the top surface of the loading dock and not to a side surface of the loading dock.

16. The dock leveler of claim 1, wherein the deck assembly top surface is configured to provide a gentile climb over the pivot shaft.