Apparatus for detachably securing a ladder to a shoring structure and method of use thereof
09951558 ยท 2018-04-24
Inventors
Cpc classification
E06C7/505
FIXED CONSTRUCTIONS
E06C7/188
FIXED CONSTRUCTIONS
Y10T29/49947
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
International classification
Abstract
A restraining system and method for detachably securing a ladder to a shoring or excavation support structure. The restraining assembly, primarily configured from an elongated flexible restraining material, includes a proximal member, possessing a fastener configured to removably attach onto either side rail of a ladder. The assembly further includes a distal member, possessing a fastener configured to removably attach to a shoring anchor located on the top portion of a shoring wall. The mediate portion of the restraining assembly is configured to concurrently retain both the proximal and distal members, including a tensioning means for the adjustment of the overall functional length of the restraining assembly. In particular embodiments, the restraining system includes a shoring or excavation support structure having at least one shoring wall that includes a multiplicity of shoring anchors attached at predetermined locations.
Claims
1. A pair of restraining assemblies, comprising an elongated flexible restraining material, securing a ladder canted against an excavation support wall, wherein the ladder is comprised of a first side rail and an opposing side rail; and said excavation support wall having a top portion including a plurality of shoring anchors disposed thereon on a side of said excavation support wall facing said ladder; each of said restraining assemblies comprising a proximal member, a distal member, and a mediate member between said proximal member and said distal member, wherein: said proximal member having a proximal fastener wherein said proximal member of a first of said pair of restraining assemblies is looped around the first side rail on the ladder and fastened to a first cooperating fastener on said mediate member by a first said proximal fastener forming a first restraining loop and wherein said proximal member of a second of said pair of restraining assemblies is looped around the opposing side rail on the ladder and fastened to a second cooperating fastener on said mediate member by a second said proximal fastener forming a second restraining loop and wherein an abrasion resistant textile material is fastened only on said proximal member of each of said pair of restraining assemblies that is looped around said side rail of said ladder, whereby said looped portion of said restraining assembly is shielded from damaging abrasive forces; said distal member having a distal fastener configured to attach to one of said plurality of shoring anchors on said excavation support wall, each shoring anchor having a mounting location on said excavation support wall; and said mediate portion, configured to concurrently retain said proximal member and said distal member, including a tensioner for an adjustment of a functional length defined by a distance between said proximal fastener and said distal fastener wherein said tensioner is configured to adjust said functional length so that said restraining assembly is taut.
2. The restraining assembly of claim 1, wherein said elongated flexible restraining material is selected from a group consisting of a strap, rope, cable, and chain.
3. The restraining assembly of claim 1, wherein said proximal fastener is selected from a group consisting of a hook, carabiner clip and a flat snap hook.
4. The restraining assembly of claim 1, wherein said proximal fastener is a loop fastening assembly, wherein said loop fastening assembly is comprised of a loop restraining member having a first end and a second end; said first end having a quick release fastener attached thereon, and said second end attached to said mediate member having a receiving fastener attached thereon configured to fastenably cooperate with said quick release fastener, whereby a retaining loop is created when said quick release fastener is fastened onto said receiving fastener.
5. The restraining assembly of claim 1, wherein said distal fastener is selected from a group consisting of a hook, carabiner clip and a flat snap hook.
6. A ladder retention system comprising: an excavation support wall having a top portion including a plurality of shoring anchors, each having a mounting location on a side of said excavation support wall facing a ladder, disposed thereon; and a pair of restraining assemblies, primarily configured from an elongated flexible restraining material, securing said ladder canted against said excavation support wall wherein said ladder is comprised of a first side rail and an opposing side rail, each of said restraining assemblies comprising a proximal member, a distal member, and a mediate member between said proximal member and said distal member, wherein: said proximal member having a proximal fastener wherein said proximal fastener is a loop fastening assembly, wherein said loop fastening assembly is comprised of a loop restraining member having a first end and a second end; said first end having a quick release fastener attached thereon, and said second end attached to said mediate member having a receiving fastener attached thereon configured to fastenably cooperate with said quick release fastener, whereby a restraining loop is created when said quick release fastener is fastened onto said receiving fastener, wherein said restraining loop of a first of said pair of restraining assemblies is looped around said first side rail on said ladder and wherein said restraining loop of a second of said pair of restraining assemblies is looped around said opposing side rail on said ladder wherein an abrasion resistant textile material is fastened only on said proximal member of each of said pair of restraining assemblies that is looped around said side rail of said ladder, whereby said looped portion of said restraining assembly is shielded from damaging abrasive forces; said distal member having a distal fastener configured to attach to one of said plurality of shoring anchors, said ladder positioned between a pair of said shoring anchors; and said mediate portion, configured to concurrently retain said proximal member and said distal member, including a tensioner for an adjustment of a functional length defined by a distance between said proximal fastener and said distal fastener wherein said tensioner is configured to adjust said functional length so that said restraining assembly is taut.
7. The ladder retention system of claim 6, wherein said elongated flexible restraining material is selected from a group consisting of a strap, rope, cable, and chain.
8. The ladder retention system of claim 6, wherein said quick release fastener is selected from a group consisting of a hook, carabiner clip and a flat snap hook.
9. The ladder retention system of claim 6, wherein said distal fastener is selected from group consisting of a hook, carabiner clip and a flat snap hook.
10. The ladder retention system of claim 6, wherein at least one of said plurality of shoring anchors is removably attachable, wherein said mounting location is a wall support member having fastener holes therein for attaching said shoring anchor.
11. The ladder retention system of claim 6, wherein at least one of said plurality of shoring anchors is permanently attached to said mounting location by welding.
12. A ladder retention system comprising: at least one pair of shoring anchors removably attached to shoring wall supports on a top portion of an excavation support wall on a side of said excavation support wall facing a ladder; and a pair of restraining assemblies, primarily configured from an elongated flexible restraining material having a proximal member, a distal member, and a mediate member between said proximal and distal members, securing said ladder canted against said excavation support wall wherein said ladder is comprised of a first side rail and an opposing side rail, each of said restraining assemblies comprising: said proximal member having a proximal fastener wherein said proximal fastener is a loop fastening assembly, wherein said loop fastening assembly is comprised of a loop restraining member having a first end and a second end; said first end being an end of said proximal member having a quick release fastener attached thereon, and said second end being an end of said mediate member having a receiving fastener attached thereon configured to fastenably cooperate with said quick release fastener, whereby a restraining loop is created when said quick release fastener is fastened onto said receiving fastener, wherein said proximal member of a first of said pair of restraining assemblies is looped around said first side rail on said ladder and wherein said proximal member of a second of said pair of restraining assemblies is looped around said opposing side rail on said ladder and wherein an abrasion resistant textile material is fastened only on said proximal member of each of said first and second of said pair of restraining assemblies that is looped around said side rail of said ladder, whereby said looped portion of said restraining assembly is shielded from damaging abrasive forces; said distal member having a distal fastener configured to attach to said at least one shoring anchor, said ladder positioned between a pair of said shoring anchors; and said mediate portion, configured to concurrently retain said proximal member and said distal member, including a tensioner for an adjustment of a functional length defined by a distance between said proximal fastener and said distal fastener wherein said tensioner is configured to adjust said functional length so that said restraining assembly is taut.
13. The ladder retention system of claim 12, wherein said elongated flexible restraining material is selected from a group consisting of a strap, rope, cable, and chain.
14. The ladder retention system of claim 12, wherein said quick release fastener is selected from a group consisting of a hook, carabiner clip and a flat snap hook.
15. The ladder retention system of claim 12, wherein said distal fastener is selected from group consisting of a hook, carabiner clip and a flat snap hook.
16. A method for securing a ladder to an excavation support wall, comprising the steps of: mounting at least one pair of removably attachable shoring anchors onto mounting locations disposed on the top portion of said excavation support wall on a side of said excavation support wall facing said ladder; looping a proximal member of a first restraining assembly around a first side rail of said ladder by fastening a first cooperating fastener on an end of said proximal member to a second cooperating fastener on a mediate member of said first restraining member thereby forming a first restraining loop around said first side rail of said ladder, and fastening a distal member of said first restraining assembly on to a first of said at least one pair of shoring anchors wherein a first abrasion resistant textile material is fastened only on said first restraining loop, whereby said looped portion of said first restraining assembly is shielded from damaging abrasive forces; thereafter tensioning to remove slack from said first restraining assembly attached between said first side rail of said ladder and said first shoring anchor by engaging a tensioner disposed on said mediate portion of said first restraining assembly; thereafter looping a proximal member of a second restraining assembly around an opposing side rail of said ladder by fastening a first cooperating fastener on an end of said proximal member to a second cooperating fastener on a mediate member of said first restraining member thereby forming a second restraining loop around said opposing side rail of said ladder, and fastening a distal member of said second restraining assembly on to a second of said at least one pair of said shoring anchors wherein a second abrasion resistant textile material is fastened only on said second restraining loop, whereby said looped portion of said second restraining assembly is shielded from damaging abrasive forces; and thereafter tensioning to remove slack from said second restraining assembly attached between said opposing side rail of said ladder and said second shoring anchor by engaging a tensioner disposed on said mediate portion of said second restraining assembly; whereby the ladder is secured to the excavation support w all, positioned between a pair of said shoring anchors.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The ensuing detailed description section makes reference to the annexed drawings. An enhanced understanding of the present invention will become evident when consideration is given to the detailed description thereof and objects other than the aforementioned become apparent. The invention will be described by reference to the specification and the annexed drawings, in which like numerals refer to like elements, and wherein:
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DEFINITIONS OF TERMS USED IN THIS SPECIFICATION
(15) The apparatus for detachably securing a ladder to a shoring structure and method of use thereof discussed throughout this disclosure shall have equivalent nomenclature, including the device, the apparatus, the assembly, the ladder retention system, the system, the method, the present invention, or the invention. Additionally, the term exemplary shall possess a single meaning throughout this disclosure; wherein the sole definition pertains to serving as an example, instance, or illustration.
(16) The term ladder shall refer to all non-self supporting ladder type configurations, whether commercially purchased or hand fabricated. Two popular non-self supporting ladder types include the straight ladder 102 (shown in
(17) To help facilitate disclosure understanding and streamline the location of figures and associated part numbers, a systematic parts/features numbering convention has been employed. The first digit in three digit part numbers refers to the figure number where the part was first introduced, or is best depicted. Likewise, in four digit part numbers, the first two digits refer to the figure number where the part was first introduced, or is best depicted. Although this disclosure may at times deviate from this convention, it is the intention of this numbering convention to enable expeditious comprehension of the disclosure.
PARTS/FEATURES LIST
(18) 100. ladder retention system 102. straight ladder 104a. upper rung 104b. lower rung 106. first side rail 108. second side rail (opposing side rail) 110. shoring wall 112. top portion (shoring wall) 114. first anchor (or first cleat) 116. second anchor (or second cleat) 118. first restraining assembly 120. second restraining assembly 122. loop fastening assembly (portion of proximal member) 124. tensioning means 126. fastener (quick release) 128. functional length (between 116 and 122) 130. fastener receiver (component of second anchor 116) 132. distal member (portion of restraining assembly 120) 200. ladder-shoring wall setup 200 (means for access and/or egress) 202. extension ladder 204. base section (of extension ladder 202) 206. fly section (of extension ladder 202) 208. adjustment line (for adjusting fly section 206) 212. ground 300. wall assembly (shoring wall with removably attachable anchors) 302. configurable shoring wall 304. shoring wall supports 304a. first shoring wall support 304b. second shoring wall support 306. fastener holes (for securing removably attachable anchors) 308. first removably attachable anchor 310. second removably attachable anchor 312. removably attachable anchor assembly (enlarged detail of 308) 314. bolt fasteners 316. anchor holes 318. nuts (mates with bolt fasteners 314) 400. chain 402. links 404. cable 406. metallic strands 408. rope 410. fiber strands 500. carabiner clip 502. spring powered arm 504. body 506. closed shape 508. hook 510. body (C shape structure) 512. eye 514. open shape 600. restraining assembly 602. distal member 604. flat snap hook 606. body 608. spring powered locking member (snap closer) 610. distal member strap 612. strap tensioner (tensioning means) 614. mediate portion strap 616. proximal member 700. mediate portion (or mediate member) 800. loop fastening assembly (exemplary proximal member embodiment) 802. D-ring 804. flat snap hook 806. body 808. spring powered locking member 810. strap (loop restraining member) 812. abrasion sleeve (abrasion protection means for strap 810)
DETAILED DESCRIPTION
(19) With reference to the drawings of the present invention, several embodiments pertaining to the apparatus for detachably securing a ladder to a shoring structure and method of thereof will be described. In describing the embodiments illustrated in the drawings, specific terminology will be used for the sake of clarity. However, the invention is not intended to be limited to the specific terms so selected, and it is to be understood that each specific term includes all technical equivalents that operate in a similar manner to accomplish a similar purpose. Terminology of similar import other than the words specifically mentioned above likewise is to be considered as being used for purposes of convenience rather than in any limiting sense.
(20) It must be noted that as used herein and in the appended claims, the singular forms a, an, and the include plural reference unless the context clearly dictates otherwise. As well, the terms a (or an), one or more and at least one are considered equivalents, and therefore can be used interchangeably herein. It is also to be noted that the terms comprising, including, characterized by, possessing and having are all to be interpreted as open ended equivalent terms, and are therefore used interchangeably.
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(22) Shoring wall 110 comprises a first anchor 114 (or cleat) and a second anchor 116 affixed to top portion 112 of shoring wall 110. The first and second anchors are horizontally separated from each other to permit, between the anchors, the installation of straight ladder 102, first restraining assembly 118, and second restraining assembly 120, as depicted in
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(24) Loop fastening assembly 122 (a type of proximal member, best depicted in
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(31) Referring to distal member 602, attached to distal member strap 610 is a flat snap hook 604 comprising a body 606 and a spring powered locking member 608. This type of quick release fastener is known for secure latching and is therefore a preferred type fastener for such safety type applications. Distal member strap 610 may be constructed from a variety of durable materials including materials derived from natural sources such as leather, cotton based textiles, and the like; as well as synthetic type materialssuch as nylon, polyester; or any combination thereof. In preferred embodiments the device is constructed from UV resistant, wear-resistant, type of material or material combinations. It is understood that material considerations are largely dependent on a variety of factors, including: the desired properties or characteristics of the device dictated by application attributes, expected environmental conditions, device cost considerations, and the like.
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(34) Optional abrasion sleeve 812 functions as a protective covering for load bearing strap 810. As a secured ladder is used, abrasion of strap 810 may occur due to slight movements between the ladder side rails and strap 810. Abrasion sleeve 812 is preferably constructed from a flexible, abrasion resistant material. It is understood that the abrasion sleeve 812 can take other forms (e.g. a sewn on patch) and can be selected from a variety of sheet type materials (e.g. fabrics, textiles, and the like). Exemplary materials include: leather, canvas, natural (e.g. cotton), polymeric (synthetic) textiles, or any combination thereof. Polymeric textiles are preferred due to their strength, washability, durability, among other desirable attributes. Said polymeric textiles include materials such as Nylon, Cordura, Polyester, the like, and combination blends thereof.
(35) The following is an exemplary method for securing a ladder to a shoring wall. It is understood that the order of certain steps is not material to the functionality or performance once the assembly of the present invention is properly configured (e.g. ladder retention system 100 of
(36) The next step is tensioning to remove slack from said first restraining assembly attached between the first side rail of said ladder and the one of the plurality of shoring anchors by engaging a tensioning means disposed on a mediate portion of the first restraining assembly. This is followed by fastening a proximal member of a second restraining assembly on to an opposing side rail of a ladder, and fastening a distal member of the second restraining assembly on to one of a plurality of shoring anchors disposed on a top portion of a shoring wall.
(37) The next step includes tensioning to remove slack from the second restraining assembly attached between the opposing side rail of the ladder and the one of the plurality of shoring anchors by engaging a tensioning means disposed on a mediate portion of the second restraining assembly; whereby the ladder is secured to the shoring wall.
(38) Other method embodiments would include the step of mounting at least one pair of removably attachable shoring anchors onto predetermined mounting locations on a configurable shoring wall 302. Another includable step is the positioning the ladder onto a predetermined location on the top portion of a shoring wall located between at least one pair of cooperating shoring anchors (removably attachable or permanently attached.