IP Library Granted Patent US 10,718,161
Granted Patent B2
US 10,718,161 · App. 16/090,907 · Granted Jul 21, 2020

Rung for a collapsible ladder

Inventors: Jens Bernhardsson (Limhamn, SE); Stina Karlsson (Limhamn, SE); Henrik Edvardsson (Malmö, SE); Niklas Ekstrand (Lund, SE); Carl-Johan Nelson (Bjärred, SE); Ulrik Gejervall (Forserum, SE)
Assignee: Telesteps AB
E06C7/083E06C1/125E06C1/18E06C1/22E06C7/00E06C7/003E06C7/08E06C7/081E06C7/14
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Quick Facts
Patent No.
US 10,718,161
App. No.
16/090,907
Granted
Jul 21, 2020
Kind
B2
Abstract

A rung for use in a ladder section of a collapsible ladder ( 1 ) is provided. The collapsible ladder comprises several ladder sections ( 5, 5 a - 5 j ), where each ladder section comprises two ladder tubes ( 10, 12 ) arranged parallel to each other and interconnected by the rung ( 20 ) to form the respective ladder section, and where each ladder tube ( 10, 12 ) is telescopically inserted into a ladder tube ( 10, 12 ) of a lower ladder section to form the collapsible ladder ( 1 ), the rung ( 20 ) comprising a main section ( 22 ), a first bracket section ( 24 a ) and a second bracket section ( 24 b ), wherein the first and second bracket sections ( 24 a, 24 b ) are arranged at each end of the rung ( 20 ) to receive the respective ladder tube ( 10, 12 ). The rung ( 20 ) is characterized in that the main section ( 22 ) and the first and second bracket sections ( 24 a, 24 b ) are provided as an integrated unit.

Claims (28)

1. A rung for use in a ladder section of a collapsible ladder that includes several ladder sections, where each ladder section has two ladder tubes arranged parallel to each other and interconnected by the rung, and where each ladder tube is telescopically inserted into a ladder tube of a lower ladder section, the rung comprising:

a main section;

a first bracket section arranged at a first end of the main section, the first bracket section configured to receive a first one of the ladder tubes; and

a second bracket section arranged at a second end of the main section, the second bracket section configured to receive a second one of the ladder tubes;

wherein the main section, the first bracket section, and the second bracket section are of a unitary, one-piece construction;

wherein the main section is inclined at an angle to a plane in which the first and the second bracket sections extend; and

wherein the rung is configured to be connected to each of the first and the second ladder tubes using clamping, wherein the clamping is created by a slit provided in each of the first and the second bracket sections, and a lock configured to close the slit around the first or the second ladder tube.

2. The rung according to claim 1 , wherein the main section and the first and the second bracket sections are fabricated from the same material.

3. The rung according to claim 1 , wherein the first and the second bracket sections are symmetrical to each other.

4. The rung according to claim 1 , wherein the rung comprises at least one grip handle.

5. The rung according to claim 4 , wherein the at least one grip handle is arranged at a distance from a central line of the rung;

wherein the central line is parallel with the ladder tubes; and

wherein the central line is perpendicular to a longitudinal line that extends between the first and the second bracket sections.

6. The rung according to claim 4 , wherein the grip handle and the rung are of a unitary, one-piece construction.

7. The rung according to claim 1 , further comprising a locking mechanism.

8. The rung according to claim 7 , further comprising at least one locking indicator to indicate whether the locking mechanism is in a locked position or not.

9. A collapsible ladder comprising:

several ladder sections, each ladder section including

two ladder tubes arranged parallel to each other, and

a rung interconnecting the two ladder tubes;

wherein each ladder tube is telescopically inserted into a ladder tube of a lower ladder section;

wherein each rung includes

a main section,

a first bracket section arranged at a first end of the main section, the first bracket section configured to receive a first one of the ladder tubes, and

a second bracket section arranged at a second end of the main section, the second bracket section configured to receive a second one of the ladder tubes;

wherein the main section, the first bracket section, and the second bracket section of each rung are of a unitary, one-piece construction;

wherein the main section is inclined at an angle to a plane in which the first and the second bracket sections extend; and

wherein the rung is configured to be connected to each of the first and the second ladder tubes using clamping, wherein the clamping is created by a slit provided in each of the first and the second bracket sections, and a lock configured to close the slit around the first or the second ladder tube.

Assignments (2)
MERGER Recorded Feb 10, 2025
From: TELESTEPS AB
To: HULTAFORS GROUP AB
Reel/Frame 070168/0169 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 3, 2018
From: BERNHARDSSON, JENS; KARLSSON, STINA; EDVARDSSON, HENRIK; EKSTRAND, NIKLAS; NELSON, CARL-JOHAN; GEJERVALL, ULRIK
To: TELESTEPS AB
Reel/Frame 047052/0722 →
Priority Claims (1)
SE 1650454 · Apr 4, 2016 · national
Continuity (1)
Related Publication 20190128064A1 · May 2, 2019
Cited By (1)
US 12,215,547