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Tractor Trailer Dolly Jockey

Mark Holmes Sun, 2011-01-23 08:35

Mark Holmes · Sun, 01/23/2011 - 09:35
Patent #: 
7717452
Category: 
Publishing date: 
05/18/2010
Filling date: 
10/26/2007
Inventors: 
Glen Edward Cook
Assignee: 
Green Wave Energy Corp.
Abstract: 

Disclosed is a tool to help move and connect a tractor trailer dolly to the lead trailer in a safe, easy and efficient manner. The dolly jockey is a bar about three feet long with lips at the bottom to connect to the safety chain mounting ring on the rear of trailers. The bar has one or more hooks that connect to a chain with a hook at the end. The chain is connected between the dolly and the bar. The bar is used as a pry bar to pull the trailer towards the lead trailer. The bar can also be used to pry the front of the dolly from side to side in order to line it up with the lead trailer hitch.

Claims: 

What I claim as my invention is:

1. A tool to line up a trailer dolly with a lead trailer when connecting a set of double trailers using the trailer safety chain connecting ring located on the back of the lead trailer as a connection point to mount the lower end of a dolly jockey to form a multi directional pivot point; comprising: a. a strong, round. rigid, straight, bar at least thirty four inches long with two round, strong, rigid, flat washers fastened securely in place perpendicular to said bar and extending outward a minimum of one inch with one at the bottom end to form a bottom lip and another about two inches above to form a top lip; Wherein the bottom of the said bar is placed inside the safety chain ring on the rear of the lead trailer so the two said washers form a multidirectional pivot point around the safety chain connection ring and the upper section of said bar can rest against the nose of the dolly and push the front of the dolly sideways to line up with the pin hook of the lead trailer.

2. The tool to line up a trailer dolly with a lead trailer when connecting a set of double trailer of claim 1, wherein the top of said bar has a notch near the top of said bar cut into said bar at an angle extending towards the top of said bar about one half inch wide extending about half way to the center of said bar to hook onto a fifth wheel release handle or other part of the trailer to act as an extension handle.

3. A tool to line up a trailer dolly with a lead trailer when connecting a set of double trailers using the trailer safety chain connecting ring located on the back of the lead trailer as a connection point to mount the lower end of a dolly jockey to form a multi directional pivot point, comprising: a. a strong, round. rigid, straight, bar at least thirty four inches long with two round, strong, rigid, flat washers fastened securely in place perpendicular to said bar and extending outward a minimum of one inch with one at the bottom end to form a bottom lip and another about two inches above to form a top lip; b. one or more open chain hooks mounted directly, securely and very close to said bar near the bottom and above the said washers with the open side of said hooks facing the top of said bar; c. a length of chain that can connect to said hooks on said bar to allow the said chain to be adjustable by selecting the link to connect to said hook; d. a chain hook mounted on one end of said chain; Wherein the said chain hook mounted on the said chain can be connected directly to the dolly or the said chain can be wrapped around part of the dolly and the said chain hook can be connected to said chain and the other end of said chain could be connected to one of the said hooks on said bar so the said chain is as tight as possible while the said bar is in a near horizontal position with the top of said bar towards the dolly and the said washers are around the safety chain ring to form a multidirectional pivot point so when the top of the said bar is raised the said chain will pull and move the dolly towards the lead trailer and the said bar can be moved sideways to rest on the nose of the dolly and push it sideways to align the dolly front to back and sideways to line the dolly up with the trail pin hook.

4. A tool to line up a trailer dolly with a lead trailer when connecting a set of double trailers using the trailer safety chain connecting ring located on the back of the lead trailer as a connection point to mount the lower end of a dolly jockey to form a multi directional pivot point, comprising: a. a strong, round. rigid, straight, bar at least thirty four inches long with two round, strong, rigid, flat washers fastened securely in place perpendicular to said bar and extending outward a minimum of one inch with one at the bottom end to form a bottom lip and another about two inches above to form a top lip; b. one or more open chain hooks mounted directly, securely and very close to said bar near the bottom and above the said washers with the open side of said hooks facing the top of said bar; c. length of chain that can connect to said hooks on said bar to allow the said chain to be adjustable by selecting the link to connect to said hook; d. a chain hook mounted on one end of said chain; e. a notch near the top of said bar cut into said bar at an angle extending towards the top of said bar about one half inch wide extending about half way to the center of said bar; Wherein the said chain hook can be connected directly to the dolly or the said chain can be wrapped around part of the dolly and the said chain hook can be connected to said chain and the other end could be connected to one of the said hooks on said bar so the said chain is as tight as possible while the said bar is in a near horizontal position with the top of said bar towards the dolly and the said washers are around the safety chain ring to form a multidirectional pivot point so when the top of the said bar is raised the said chain will pull and move the dolly towards the lead trailer and the said bar can be moved sideways to rest on the nose of the dolly and push it sideways to align the dolly front to back and sideways to line the dolly with the trailer pin hook.

Description: 

FIELD OF THE INVENTION

This invention relates to a tool to help move and couple double trailers, also called "twins." In the trucking industry many companies use double or triple trailers. This operation requires one tractor to be connected to two or more trailers. The trailers are connected together with a dolly. A dolly generally consists of one or more axles with duel wheels on each side, a fifth wheel similar to the one on the tractor to connect to the king pin of the trailing trailer, a hitch or strong steel ring to connect to the leading trailer and often a retractable landing gear with a wheel at the bottom.

In order to connect a set of trailers with a dolly, first: the rear trailer is dropped with its landing gear down. Second: a dolly is staged in front of the trailer with the fifth wheel centered and close to the rear trailer. The dolly can be moved into place by hand or with a tractor with a special hook on the rear to connect to the dolly. Most tractors used to pull doubles have this hook installed. Third: the tractor is hooked to the lead trailer and backed into position in front of the dolly. When the driver thinks he has backed the trailer so the trailer hook is lined up with the dolly, he must stop the tractor and walk to the rear of the leading trailer to check its position and connect the dolly to the lead trailer. When the connection is not close the driver must go back to the tractor and try again. If the trailer hook is close to the dolly, the driver can move the dolly by hand into position and hook them together; however, when the ground is not smooth and level, moving the dolly by hand can be impossible. The dolly must be hooked to the lead trailer before it is backed under and connected to the rear trailer.

In real life, the trailers are often connected in dark, un-level, dirt and pothole filled yards where moving the dolly by hand is impossible. In this case the driver must continue to try to back the trailer to the dolly perfectly. Even the best drivers often take several tries to accomplish this task. This task is often a cause of injury as drivers try to move the dolly by hand. Even when a driver can move the dolly, the driver must hold the dolly in place with one hand while raising the landing gear to lower the dolly in place.

With over ten years in the industry, I have not seen or heard of any device to help line up or move a dolly by hand. What is needed is a device that can be carried inside a tractor that will allow a person to move a dolly as easy as a jack can lift a car to change a flat tire.

Attorney, Agent or Firm: 
Green Wave Energy Corp.

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