Zone specific remote control panel for loading dock equipment

• US 7,256,703 B2
• Filed: 08/16/2004
• Issued: 08/14/2007
• Est. Priority Date: 04/18/2002
• Status: Expired due to Term

• Current Assignee: 4Front Engineered Solutions Incorporated (Assa Abloy AB)
• Original Assignee: 4Front Engineered Solutions Incorporated (Assa Abloy AB)
• Inventors: Alexander, James C., Duvernell, Kim, Reynard, Terence
• Primary Examiner(s): Pope; Daryl C
• Application Number:
  US10/918,352
• Publication Number:
  US 20050102041A1
• Time in Patent Office: 1,093 Days
• Field of Search: 340/691.1, 340/539.1, 340/539.23, 340/686.6
• US Class Current: 340/691.1
• CPC Class Codes: B65G 69/001 Buffers for vehicles at loading stations
• CPC Class Codes: B65G 69/003 Restraining movement of a vehicle at a loading station using means not being part of the vehicle
• CPC Class Codes: B65G 69/006 Centring or aligning a vehicle at a loading station using means not being part of the vehicle
• CPC Class Codes: B65G 69/008 Dock- or bumper-seals
• CPC Class Codes: B65G 69/2876 Safety or protection means, e.g. skirts

Abstract

A loading dock apparatus remote control is provided. Some embodiments of the invention include a zone specific remote control for loading dock apparatus. Some optional embodiments include a selector switch to select which apparatus the single set of controls will control. Other optional embodiments automatically select the apparatus to be controlled by the single set of controls. A method of operating loading dock apparatus using a remote control is also provided.

Claims

1. A remote control system comprising:

a receiver operatively connected to equipment to be controlled by the system;

a remote control configured to communicate with the receiver to control the equipment;

a transmitter operatively connected to the remote control; and

a zone located proximate to the equipment to be controlled by the system defined by at least one receiver and remote control wherein the remote control and the receiver communicate with each other when the transmitter is located in the zone and can not communicate with each other when the transmitter is not in the zone and the zone is not defined by a range associated with the transmitter.

2. The system of claim 1, further comprising indicia marked on a surface indicating at least one boundary of the zone.

3. The system of claim 2, wherein the indicia are located on a floor and is shaped as a conic section.

4. The system of claim 3, wherein the indicia is shaped into a circle.

5. The system of claim 2, wherein the indicia have a radius of about 5 feet.

6. The system of claim 5, wherein the receiver is operatively connected to the control panel via a telephone wire.

7. The system of claim 1, wherein the system operates loading dock equipment.

8. The system of claim 7, wherein the remote control is located on a fork truck.

9. The system of claim 8, wherein the transmitter is located on the fork truck and transmits the signal substantially straight up.

10. The system of claim 7, wherein the receiver is configured to communicate with a control panel associated with loading dock equipment.

11. The system of claim 10, wherein the receiver communicates with the control panel via a phone cord.

12. The system of claim 1, wherein the receiver comprises at least three radio receivers that triangulate a radio signal sent by the remote control.

13. The system of claim 1, wherein the receiver and the remote control communicate via an infrared signal.

14. The system of claim 13, wherein the infrared signal is transmitted through a tube and an inner diameter of the tube limits a diameter associated with the signal and thereby limits a size of the zone.

15. The system of claim 13, further comprising a reflector configured to reflect the signal between the receiver and the remote control.

16. The system of claim 1, further comprising a plurality of receivers and zones wherein each zone corresponds with one and only one receiver and the remote control is configured to operate equipment associated with each receiver when the transmitter is the zone associated with a particular receiver.

17. The system of claim 1, wherein the receiver is operatively connected to a control panel configured to control the equipment.

18. The system of claim 1, wherein said remote control system operates loading dock equipment with a controller located on a fork truck.

19. The system of claim 18, wherein said remote control system moves the fork truck to a pre-determined zone before operating the loading dock equipment.

20. The system of claim 19, further including markings on the loading dock floor indicating at least one boundary of the zone that the controller will work to operate the loading dock equipment.

21. A loading dock control system comprising:

an infrared transmitter attachable to a fork truck and configured to transmit an infra red signal substantially straight up;

a remote dock loading equipment controller operatively connected to the transmitter; and

a receiver mountable in proximity to a loading dock such that when mounted, the receiver will only be able to receive a signal from the transmitter when the transmitter is located with in a defined zone, the receiver configured to be operatively connected to a control panel located at the loading dock and controlling loading dock equipment.

22. The system of claim 21, further including indicia on a floor of the loading dock indicating at least of boundary of the defined zone.

23. A control system comprising:

means for transmitting attachable to a fork truck and configured to transmit a signal substantially straight up;

equipment controlling means operatively connected to the transmitting means; and

receiving means mountable with in a loading dock such that when mounted, the receiving means will only be able to receive a signal from the transmitting means when the transmitting means is located with in a defined zone, the receiving means configured to be operatively connected to a control panel located at the loading dock and controlling loading dock equipment.