The field of the present invention relates to ladder stabilizing assemblies and devices and, more particularly, to stabilizing assemblies and devices that are specifically adapted for extension ladders.
Accidental falling from elevated places is among the most common causes of serious injury in the construction and retail industries. In the United States alone, every two days, on average, work-related ladder falls result in a death and more than 180 injuries, resulting in $24 billion a year in related costs, including work loss and expenses for medical, legal, liability, and pain/suffering, according to the National Institute for Occupational Safety and Health (NIOSH). At this time, the Occupational Safety and Health Administration (OSHA) standards do not require fall protection for workers on fixed ladders below 24 feet or on portable ladders. Nevertheless, various employers, contractors, workers, and other stakeholders continue to pursue solutions to reduce these types of injuries. As the following will demonstrate, the ladder stabilizing assemblies and devices of the present invention address such needs in the construction and retail industries.
According to certain preferred aspects of the invention, ladder stabilizing assemblies are disclosed. The ladder stabilizing assemblies include a series of cords (e.g., at least five cords); at least two ground anchors; at least two ground anchor clamps; a series of ladder connectors; and a tightening buckle. The invention provides that the ladder stabilizing assemblies include a first pair of cords, with a first cord attached to the bottom portion of the right leg of the ladder and a second cord attached to the top portion of the right leg of the ladder, with both cords being further secured to the ground through a first ground anchor (positioned to the right of the right leg of the ladder). The ladder stabilizing assemblies include a second pair of cords, with a third cord attached to the bottom portion of the left leg of the ladder and a fourth cord attached to the top portion of the left leg of the ladder, which are both further secured to the ground through a second ground anchor (positioned to the left of the left leg of the ladder). The assemblies further include a fifth cord that connects the first and second ground anchors-which may be manually tightened using the tightening buckle. As described and illustrated herein, a ladder is stabilized when each of the five cords are tightened (pulled taut) between the ladder and the ground anchors (and between the two ground anchors through the fifth cord). Such stabilization is achieved, in part, through compressive forces exerted towards the ground surface, which the assemblies described herein are configured to generate and maintain.
The above-mentioned and additional features of the present invention are further illustrated in the Detailed Description contained herein.
The following will describe, in detail, several preferred embodiments of the present invention. These embodiments are provided by way of explanation only, and thus, should not unduly restrict the scope of the invention. In fact, those of ordinary skill in the art will appreciate upon reading the present specification and viewing the present drawings that the invention teaches many variations and modifications, and that numerous variations of the invention may be employed, used and made without departing from the scope and spirit of the invention.
According to certain preferred embodiments of the present invention, ladder stabilizing assemblies are disclosed. The ladder stabilizing assemblies include a series of cords; at least two ground anchors; at least two ground anchor clamps; a series of ladder connectors; and a tightening buckle. The ladder stabilizing assemblies provide two cords attached to the top and bottom portions of the right leg of the ladder, which are secured to the ground through a first ground anchor. The ladder stabilizing assemblies provide two additional cords attached to the top and bottom portions of the left leg of the ladder, which are secured to the ground through a second ground anchor. The assemblies further include a fifth cord that connects the first and second ground anchors-which may be manually tightened using the tightening buckle. A ladder is stabilized when each of the cords are tightened (pulled taut) between the ladder and the ground anchors (and between the two ground anchors). Such stabilization is achieved, in part, through compressive forces exerted towards the ground surface, which the assemblies described herein are configured to generate and maintain.
More specifically, referring now to
The invention provides that the first end of the first cord 10 is connected to a bottom portion of a right leg of a ladder through the first ladder connector 28; a second end of the first cord 10 is connected and secured to the first ground anchor 20 through the first ground anchor clamp 24; and the first ground anchor 20 is configured to be secured to a ground surface (as described further below). In addition, the invention provides that a first end of the second cord 12 is connected to a top portion of the right leg of the ladder through the second ladder connector 30; and a second end of the second cord 12 is connected and secured to the first ground anchor 20 through the first ground anchor clamp 24. The invention provides that the first ground anchor 20 is secured to the ground surface at a distance from the ladder, such that the first cord 10 and second cord 12 are tight, i.e., the first cord 10 and the second cord 12 are taut between the right leg of the ladder and the first ground anchor 20.
With respect to the left side of the ladder, the invention provides that a first end of the third cord 14 is connected to a bottom portion of the left leg of the ladder through the third ladder connector 32; a second end of the third cord 14 is connected and secured to the second ground anchor 22 through the second ground anchor clamp 26; and the second ground anchor 22 is configured to be secured to the ground surface. In addition, the invention provides that a first end of the fourth cord 16 is connected to a top portion of the left leg of the ladder through the fourth ladder connector 34; and a second end of the fourth cord 16 is connected and secured to the second ground anchor 22 through the second ground anchor clamp 26. Likewise, the invention provides that the second ground anchor 22 is secured to the ground surface at a distance from the ladder, such that the third cord 14 and fourth cord 16 are tight, i.e., the third cord 14 are fourth cord 16 are taut between the left leg of the ladder and the second ground anchor 22.
According to yet further embodiments of the present invention, a first end of the fifth cord 18 is connected and secured to the first ground anchor 20 through the first ground anchor clamp 24 and a second end of the fifth cord 18 is connected and secured to the second ground anchor 22 through the second ground anchor clamp 26. The invention provides that the fifth cord 18 includes the tightening buckle 36, which is configured to manually tighten or loosen the fifth cord 18 between the first ground anchor 20 and second ground anchor 22. That is, the tightening buckle 36 may be used to make the fifth cord 18 more or less taut, as necessary, between the first ground anchor 20 and second ground anchor 22. As described and illustrated herein, a ladder is stabilized when the top side of the ladder is resting against a wall surface, and each of cords 10, 12, 14, and 16 are tightened and pulled taut between the ladder and the ground anchors 20/22, and between the two ground anchors 20/22 through the fifth cord 18.
The invention provides that the two ground anchors 20/22 are preferably secured to the ground surface a distance from the wall surface that is less than the distance that the bottom of the ladder sits on ground surface. For example, if the ladder is sitting on a ground surface about 6 feet from a wall surface, the two ground anchors 20/22 may be secured to the ground surface about 3 feet from the wall surface. This way, the fifth cord 18 is allowed to be positioned between the ladder and the wall surface (as illustrated in
The invention provides that the first ladder connector 28, second ladder connector 30, third ladder connector 32, and fourth ladder connector 34 may consist of a clasp, which is configured to be connected to a loop, aperture, or other surface on each leg of the ladder (e.g.,
According to yet further preferred embodiments, the invention provides that each of the first ground anchor 20 and second ground anchor 22 may include a corkscrew element 38 that is configured to be rotated into the ground surface (
As discussed above, the ladder stabilizing assemblies may further include a first ground anchor clamp 24 (which holds the second end of the first cord 10; the second end of the second cord 12; and the first end of the fifth cord 18 together), such that all three cords 10/12/18 may be connected to the loop 42 on the top surface 40 of the first ground anchor 20 (
The invention provides that the first cord 10, second cord 12, third cord 14, a fourth cord 16, and fifth cord 18 may consist of ropes, chains, webbing materials, elastomer cords, bands (metallic and elastomer bands), and other suitable materials. The invention provides that the ground anchors 20/22; clamps 24/26; ladder connectors 28/30/32/34; and the rod 44 may be comprised of metals, steel, plastics, and/or other suitably rigid materials.
The many aspects and benefits of the invention are apparent from the detailed description, and thus, it is intended for the following claims to cover all such aspects and benefits of the invention that fall within the scope and spirit of the invention. In addition, because numerous modifications and variations will be obvious and readily occur to those skilled in the art, the claims should not be construed to limit the invention to the exact construction and operation illustrated and described herein. Accordingly, all suitable modifications and equivalents should be understood to fall within the scope of the invention as claimed herein.
Number | Name | Date | Kind |
---|---|---|---|
88842 | Burbank | Apr 1869 | A |
198897 | Middleton | Jan 1878 | A |
559626 | Snell | May 1896 | A |
3165169 | Machen | Jan 1965 | A |
3744192 | Burnett | Jul 1973 | A |
4007807 | Pogwizd | Feb 1977 | A |
4130181 | McCallum | Dec 1978 | A |
4632220 | Murrell | Dec 1986 | A |
4792016 | Ingalsbe | Dec 1988 | A |
4964488 | Stewart | Oct 1990 | A |
5067588 | Bendickson | Nov 1991 | A |
5529145 | Allred | Jun 1996 | A |
5682960 | Mobley | Nov 1997 | A |
5868222 | Charbonneau | Feb 1999 | A |
5896945 | Boelling | Apr 1999 | A |
6672427 | Sheffield | Jan 2004 | B1 |
6955243 | Huff | Oct 2005 | B1 |
8590671 | Potter | Nov 2013 | B2 |
8607932 | Cooper | Dec 2013 | B2 |
8695761 | Berkbuegler | Apr 2014 | B1 |
9187954 | Parsons | Nov 2015 | B1 |
10415312 | Conroy | Sep 2019 | B1 |
11125015 | Goudreault | Sep 2021 | B2 |
11452279 | Specha | Sep 2022 | B2 |
D979098 | Park | Feb 2023 | S |
20050166468 | Pierce | Aug 2005 | A1 |
20060118360 | Rivers | Jun 2006 | A1 |
20070289812 | Feemster | Dec 2007 | A1 |
20080029341 | Cooper | Feb 2008 | A1 |
20100038172 | Ralston | Feb 2010 | A1 |
20100147623 | Pocos | Jun 2010 | A1 |
20110114418 | Blazin | May 2011 | A1 |
20110290587 | Blazin | Dec 2011 | A1 |
20120261214 | Dondurur | Oct 2012 | A1 |
20130233993 | Striepling | Sep 2013 | A1 |
20150218884 | Kempthorne | Aug 2015 | A1 |
20150259982 | Maragliano | Sep 2015 | A1 |
20150361722 | Chick | Dec 2015 | A1 |
20200063492 | McCormick | Feb 2020 | A1 |
20200102789 | Young | Apr 2020 | A1 |
20210198947 | Goudreault | Jul 2021 | A1 |
20210254407 | Elmore | Aug 2021 | A1 |
20210285288 | Harris | Sep 2021 | A1 |
20210372200 | Walsh | Dec 2021 | A1 |
20210381311 | Bjørnevaag | Dec 2021 | A1 |
20220098815 | Zhou | Mar 2022 | A1 |
20230021230 | Santana | Jan 2023 | A1 |
20230143839 | Brandon | May 2023 | A1 |
Number | Date | Country |
---|---|---|
109138821 | Jan 2019 | CN |
2069579 | Aug 1981 | GB |
2329212 | Mar 1999 | GB |
2416800 | Feb 2006 | GB |
2428730 | Feb 2007 | GB |
2432621 | May 2007 | GB |
WO-2007015110 | Feb 2007 | WO |
WO-2017151527 | Sep 2017 | WO |
WO-2023244726 | Dec 2023 | WO |