Kingpin stabilizer

Patent metadata

Field	Value
Publication number	US-9738332-B2
Application number	US-201615155571-A
Country	US
Kind code	B2
Filing date	May 16, 2016
Priority date	Aug 22, 2012
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A kingpin stabilizer having a kingpin-retaining bracket having a base plate and upwardly extending walls along at least two sides of the base plate. The upwardly extending walls and the base plate forming a receiving cavity with the upwardly extending walls spaced apart to fit said kingpin therebetween. At least one upwardly extending wall has a pin retainer. The stabilizer includes three telescoping legs extending from the pin-retaining bracket forming a tripod.

First claim

What is claimed is:

1. A method of stabilizing a kingpin comprising the steps of:
providing a kingpin stabilizer with a retaining bracket and a leg portion, the retaining bracket being defined by one or more walls extending upwardly from a baseplate to create a receiving cavity and at least one opening, one or more of the retaining bracket walls terminating with a kingpin retainer extending into the receiving cavity;
slideably engaging the retaining bracket onto the kingpin by inserting the kingpin through the opening and into the receiving cavity in a direction generally parallel to the base plate; and
extending the leg portion of the kingpin stabilizer to contact a support surface,
wherein the step of extending the leg portion further comprises providing the kingpin stabilizer with three telescoping legs, and moving a lever comprising a spring-loaded advance plate in a first direction, the advance plate engaging a ratchet wheel operably engaging a lower telescoping leg portion, the motion in the first direction rotating the advance plate and the ratchet wheel in forward rotation extending the lower telescoping leg portion.

2. The method of claim 1 , wherein the step of engaging the retaining bracket onto the kingpin further comprises inserting one or more kingpin retainers within a groove on the kingpin.

3. The method of claim 2 , wherein the step of inserting one or more kingpin retainers within a groove on the kingpin further comprises orienting the retaining bracket horizontally relative to the support surface.

4. The method of claim 1 , further comprising the step of locking the kingpin within the retaining bracket receiving cavity.

5. The method of claim 1 , wherein the step of slideably engaging the retaining bracket onto the kingpin further comprises releasably engaging the kingpin by passing a flange of the kingpin through the opening in the retaining bracket wall.

6. A trailer stabilizing assembly comprising:
a trailer kingpin comprising a main body that extends downward from a bottom surface of a stationary trailer into a flanged lower end;
a retaining bracket that engages the kingpin flange and comprising a baseplate and a receiving cavity, the receiving cavity is defined by one or more walls extending upwardly from a periphery of the baseplate, at least one of the walls having an offset kingpin retainer that extends into the receiving cavity in an orientation that is substantially parallel to the baseplate; and
one or more downwardly extending legs that extend towards a support surface and are operatively connected to the retaining bracket, at least one of the downwardly extending legs is a telescoping leg having a ratchet mechanism, wherein the ratchet mechanism comprises:
a ratchet wheel operably engaging a telescoping leg portion,
a spring-loaded lock plate that operably engages the ratchet wheel and resists backward rotation of the ratchet wheel, and
a lever comprising a spring-loaded advance plate that engages the ratchet wheel such that motion of the lever in a first direction rotates the advance plate and the ratchet wheel in forward rotation that extends the telescoping leg portion.

7. The trailer stabilizing assembly of claim 6 , where the trailer kingpin further comprises a groove that is disposed in between the kingpin main body and the flanged lower end, the groove having a diameter that is smaller than a diameter of the flanged lower end.

8. The trailer stabilizing assembly of claim 7 , where the kingpin groove is received by the retaining bracket in a horizontal orientation with respect to a support surface.

9. The trailer stabilizing assembly of claim 6 , where the one or more downwardly extending legs comprises three telescoping legs.

10. The trailer stabilizing assembly of claim 6 , where the offset kingpin retainer is selected from the group consisting of a set screw, a clip, a rod, a pin, a bolt, and a collar, or any combination thereof.

11. The trailer stabilizing assembly of claim 6 , further comprising a locking assembly comprising a lock aperture extending through the baseplate that is located adjacent to an entrance of the receiving cavity and a retainer that is inserted through the lock aperture.

12. The trailer stabilizing assembly of claim 11 where the retainer is selected from the group consisting of a padlock, a snap clip, a lock pin, a pin, and a clip.

13. A trailer stabilizing assembly comprising:
a kingpin extending downward from the bottom surface of a stationary trailer, the kingpin having a main body attached at a first end to the bottom surface of the trailer and a flanged second end; and
a stabilizer unit comprising a kingpin retaining bracket and a plurality of support legs, the retaining bracket having a baseplate, a wall extending a substantial distance around a periphery of the baseplate and upward therefrom, and an opening in the wall, the wall further comprising an inward facing flange along at least a part of its length in an orientation that is substantially parallel to the baseplate, and the stabilizing unit releasably engaging the kingpin by passing the kingpin flange through the opening in the retaining bracket wall,
wherein at least one of the plurality of support legs comprises a ratchet mechanism having:
a ratchet wheel operably engaging a telescoping leg portion,
a spring-loaded lock plate that operably engages the ratchet wheel and resists backward rotation of the ratchet wheel, and
a lever comprising a spring-loaded advance plate that engages the ratchet wheel such that motion of the lever in a first direction rotates the advance plate and the ratchet wheel in forward rotation that extends the telescoping leg portion.

14. The stabilizing assembly of claim 13 , where the kingpin flanged second end is releasably engaged within the retaining bracket in a horizontal orientation with respect to a support surface.

15. The stabilizing assembly of claim 13 , where plurality of support legs comprises three telescoping legs that extend towards a support surface.

Assignees

• Norco Ind Inc

Inventors

• Garceau Bernard F
• Krobot Bori

Classifications

• B62D53/08

  Fifth wheel traction couplings {(tractors for handling trailers in terminals B62D49/007)} · CPC title

• B62D53/0842

  King pins · CPC title

• B62D63/08

  Component parts or accessories · CPC title

• B62D53/0871 Primary

  with stabilising means, e.g. to prevent jack-knifing, pitching, rolling, buck jumping (stabilising in general B62D37/00; tractors B62D49/08) · CPC title

• B60D1/015

  Operations & Transport · mapped topic