IP Library › Granted Patent US 10,822,875
Granted Patent B1
US 10,822,875 · App. 16/565,717 · Granted Nov 3, 2020

Hang ladder with trailer rub rail bracket

Inventor: Michael L. Hailey (Joplin, MO)
Assignee: Transcorp, LLC
E06C5/32E06C5/02
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Quick Facts
Patent No.
US 10,822,875
App. No.
16/565,717
Granted
Nov 3, 2020
Kind
B1
Abstract

A hang ladder is removably mounted to a trailer by a pair of mounting brackets that are attached to the ladder's side rails. The mounting brackets have a body and an arm with a fixed width slot extending between their upper sections and with a flared end at the open end of the slot. The slot is skewed relative to the longitudinal base of the bracket, and the rub rail of a flatbed trailer fits within the slot so that the ladder is secured to the rub rail on the side of the trailer. A tapered end of the arm can produce the flare in the end of the slot.

Claims (35)

1. A hang ladder for mounting to a trailer rub rail, comprising:

a pair of opposing side rails extending from a bottom section to a top section;

a plurality of rungs extending between and connecting the pair of side rails from the bottom section to the top section, wherein each rung in the plurality of rungs is adjacent to at least one other rung in the plurality of rungs and is spaced therefrom by a step distance;

a pair of brackets respectively attached to the top section of the opposing side rails, wherein each of the pair of brackets is comprised of a body and an arm extending from the body;

wherein the body comprises a bottom end, a top end, a longitudinal base extending from the bottom end to the top end, and an outward facing surface extending an engagement distance from the bottom surface towards the top end, wherein the engagement distance of the outward facing surface is less than a body length of the longitudinal base between the top and the bottom end, and wherein the longitudinal base is attached to the top section of the ladder side rails; and

wherein the arm comprises a fixed end, a free end, and an inward facing surface, wherein the fixed end is attached to the body proximate to the top end, wherein the arm extends an arm length along the inward facing surface from the fixed end to a tip of the arm at the free end adjacent to the bottom end of the body, wherein the inward facing surface is spaced from and substantially parallel to the outward facing surface for at least one half of the engagement distance and forms a slot between the arm and the body, wherein the slot receives the rub rail, and wherein the slot is further comprised of a flared space between the inward facing surface and the outward facing surface proximate to the free end of the arm and the bottom end of the base.

2. The hang ladder of claim 1 , wherein the flared space has a flare angle between five degrees and ten degrees outward from the inward facing surface.

3. The hang ladder of claim 2 , wherein the slot is skewed relative to the longitudinal base by a slot angle between ten degrees and fifteen degrees.

4. The hang ladder of claim 1 , wherein the slot is further comprised of a curved surface proximate to the fixed end of the arm, wherein the slot between the parallel inward facing surface and outward facing surface has a slot length and a slot width, wherein the flared space has a flare length approximately twice the slot width, wherein the slot length is approximately twice the flare length, and wherein the flared space at the tip of the arm has a flare width less than twice the slot width.

5. The hang ladder of claim 4 , wherein the tip has a radius of curvature less than a radius of curvature for the curved surface in the slot.

6. The hang ladder of claim 1 , wherein the flared space is formed by a taper in the free end of the arm.

7. The hang ladder of claim 6 , wherein the taper has a taper angle between fifteen degrees and twenty degrees.

8. The hang ladder of claim 1 , further comprising a pair of handle rails extending from the opposing side rails and at least one additional rung extending between and connecting the handle sections proximate to one end of the pair of handle rails, wherein a first free end of the handle rails is greater than twice the step distance, wherein a second free end of the handle rails is less than the step distance, wherein the opposing side rails are tubular with a substantially circular cross-section with a first diameter, wherein the handle rails are tubular with a substantially circular cross-section with a second diameter less than the first diameter, wherein the handle rails have a first configuration with the first free end fitting within the opposing side rails and the shorter second end extending upward from the opposing side rails, and wherein the handle rails have a second configuration with the second free end fitting within the opposing side rails and the longer first free end extending upward from the opposing side rails.

9. A hang ladder for mounting to a trailer rub rail, comprising:

a pair of opposing side rails extending from a bottom section to a top section;

a plurality of rungs extending between and connecting the pair of side rails from the bottom section to the top section, wherein each rung in the plurality of rungs is adjacent to at least one other rung in the plurality of rungs and is spaced therefrom by a step distance;

a pair of brackets respectively attached to the top section of the opposing side rails, wherein each of the pair of brackets is comprised of a body and an arm extending from the body;

wherein the body comprises a bottom end, a top end, a longitudinal base extending from the bottom end to the top end, and an outward facing surface extending an engagement distance from the bottom surface towards the top end, wherein the engagement distance of the outward facing surface is less than a body length of the longitudinal base between the top and the bottom end, and wherein the longitudinal base is attached to the top section of the ladder side rails; and

wherein the arm comprises a fixed end, a free end, and an inward facing surface, wherein the fixed end is attached to the body proximate to the top end, wherein the arm extends an arm length along the inward facing surface from the fixed end to a tip of the arm at the free end adjacent to the bottom end of the body, wherein the inward facing surface is spaced from and substantially parallel to the outward facing surface for at least one half of the engagement distance and forms a slot between the arm and the body, wherein the slot receives the rub rail, wherein the slot is further comprised of a flared space between the inward facing surface and the outward facing surface proximate to the free end of the arm and the bottom end of the base, wherein the slot between the parallel inward facing surface and outward facing surface has a slot length and a slot width, wherein the flared space has a flare length approximately twice the slot width, and wherein the slot length is approximately equal to the engagement distance of the outward facing surface and approximately twice the flare length.

10. The hang ladder of claim 9 , wherein the slot is further comprised of a curved surface proximate to the fixed end of the arm, wherein the flared space has a flare angle between five degrees and ten degrees outward from the inward facing surface, and wherein the slot is skewed relative to the longitudinal base by a slot angle between ten degrees and fifteen degrees.

11. The hang ladder of claim 10 , wherein the tip has a radius of curvature less than a radius of curvature for the curved surface in the slot.

12. The hang ladder of claim 9 , wherein the flared space is formed by a taper in the free end of the arm.

13. The hang ladder of claim 12 , wherein the taper has a taper angle between fifteen degrees and twenty degrees.

14. The hang ladder of claim 9 , further comprising a pair of handle rails extending from the opposing side rails and at least one additional rung extending between and connecting the handle sections proximate to one end of the pair of handle rails, wherein a first free end of the handle rails is greater than twice the step distance, wherein a second free end of the handle rails is less than the step distance, wherein the opposing side rails are tubular with a substantially circular cross-section with a first diameter, wherein the handle rails are tubular with a substantially circular cross-section with a second diameter less than the first diameter, wherein the handle rails have a first configuration with the first free end fitting within the opposing side rails and the shorter second end extending upward from the opposing side rails, and wherein the handle rails have a second configuration with the second free end fitting within the opposing side rails and the longer first free end extending upward from the opposing side rails.

15. A hang ladder for mounting to a trailer rub rail, comprising:

a pair of opposing side rails extending from a bottom section to a top section;

a plurality of rungs extending between and connecting the pair of side rails from the bottom section to the top section, wherein each rung in the plurality of rungs is adjacent to at least one other rung in the plurality of rungs and is spaced therefrom by a step distance;

a pair of brackets respectively attached to the top section of the opposing side rails, wherein each of the pair of brackets is comprised of a body and an arm extending from the body;

wherein the body comprises a bottom end, a top end, a longitudinal base extending from the bottom end to the top end, and an outward facing surface extending an engagement distance from the bottom surface towards the top end, wherein the engagement distance of the outward facing surface is less than a body length of the longitudinal base between the top and the bottom end, and wherein the longitudinal base is attached to the top section of the ladder side rails; and

wherein the arm comprises a fixed end, a free end, and an inward facing surface, wherein the fixed end is attached to the body proximate to the top end, wherein the arm extends an arm length along the inward facing surface from the fixed end to a tip of the arm at the free end adjacent to the bottom end of the body, wherein the inward facing surface is spaced from and substantially parallel to the outward facing surface for at least one half of the engagement distance and forms a slot between the arm and the body, wherein the slot receives the rub rail, wherein the slot is comprised of a flared space between the inward facing surface and the outward facing surface proximate to the free end of the arm and the bottom end of the base, and wherein the flared space is formed by a taper in the free end of the arm.

16. The hang ladder of claim 15 , wherein the flared space has a flare angle between five degrees and ten degrees outward from the inward facing surface.

17. The hang ladder of claim 16 , wherein the slot is skewed relative to the longitudinal base by a slot angle between ten degrees and fifteen degrees.

18. The hang ladder of claim 15 , wherein the slot is further comprised of a curved surface proximate to the fixed end of the arm, wherein the slot between the parallel inward facing surface and outward facing surface has a slot length and a slot width, wherein the flared space has a flare length approximately twice the slot width, wherein the slot length is approximately twice the flare length, and wherein the flared space at the tip of the arm has a flare width less than twice the slot width.

19. The hang ladder of claim 18 , wherein the tip has a radius of curvature less than a radius of curvature for the curved surface in the slot.

20. The hang ladder of claim 15 , wherein the taper has a taper angle between fifteen degrees and twenty degrees.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2020
From: HAILEY, MICHAEL L., MR.
To: TRANSCORP, LLC
Reel/Frame 053423/0373 →
Continuity (1)
Provisional Application 62729210 · Sep 10, 2018
Cited By (2)
US 12,252,876 US 12,747,633