This disclosure relates to building construction. More specifically, this disclosure relates to a clamp assembly for a reinforcement post of a fall protection system.
Building structures under construction often have elevated surfaces, such as elevated floor slabs, that require guardrails or other safety measures to prevent accidental falls. Guardrails are typically placed at a perimeter of the elevated surface and are secured to structural components of the building structure, such as pillars. However, guardrails that extend long distances between adjacent pillars can lack strength and stability at and around their midpoints.
It is to be understood that this summary is not an extensive overview of the disclosure. This summary is exemplary and not restrictive, and it is intended neither to identify key or critical elements of the disclosure nor delineate the scope thereof. The sole purpose of this summary is to explain and exemplify certain concepts of the disclosure as an introduction to the following complete and extensive detailed description.
Disclosed is clamp assembly for a fall protection reinforcement post, the clamp assembly comprising a clamp body at least partially defining a slot configured to receive a guardrail therethrough; a post fastener engaging the clamp body and configured to secure the clamp assembly to the fall protection reinforcement post; a slot stop engaging the clamp body and traversing a bottom slot end of the slot, the slot stop configured to prevent the guardrail from disengaging the slot at the bottom slot end; and a clamp spring biasing the clamp assembly to an untightened configuration.
Further disclosed is a reinforcement post assembly comprising a fall protection reinforcement post defining a front post side and a rear post side; and a clamp assembly comprising: a clamp body; a post fastener engaging the clamp body and the reinforcement post to secure the clamp assembly to the reinforcement post; and a clamp spring biasing the clamp assembly to an untightened configuration; wherein a slot is defined between the clamp body and the front post side of the reinforcement post, the slot configured to receive a guardrail therethrough.
Various implementations described in the present disclosure may include additional systems, methods, features, and advantages, which may not necessarily be expressly disclosed herein but will be apparent to one of ordinary skill in the art upon examination of the following detailed description and accompanying drawings. It is intended that all such systems, methods, features, and advantages be included within the present disclosure and protected by the accompanying claims.
The features and components of the following figures are illustrated to emphasize the general principles of the present disclosure. Corresponding features and components throughout the figures may be designated by matching reference characters for the sake of consistency and clarity.
The present disclosure can be understood more readily by reference to the following detailed description, examples, drawings, and claims, and the previous and following description. However, before the present devices, systems, and/or methods are disclosed and described, it is to be understood that this disclosure is not limited to the specific devices, systems, and/or methods disclosed unless otherwise specified, and, as such, can, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting.
The following description is provided as an enabling teaching of the present devices, systems, and/or methods in its best, currently known aspect. To this end, those skilled in the relevant art will recognize and appreciate that many changes can be made to the various aspects of the present devices, systems, and/or methods described herein, while still obtaining the beneficial results of the present disclosure. It will also be apparent that some of the desired benefits of the present disclosure can be obtained by selecting some of the features of the present disclosure without utilizing other features. Accordingly, those who work in the art will recognize that many modifications and adaptations to the present disclosure are possible and can even be desirable in certain circumstances and are a part of the present disclosure. Thus, the following description is provided as illustrative of the principles of the present disclosure and not in limitation thereof.
As used throughout, the singular forms “a,” “an” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “an element” can include two or more such elements unless the context indicates otherwise.
Ranges can be expressed herein as from “about” one particular value, and/or to “about” another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about,” it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
For purposes of the current disclosure, a material property or dimension measuring about X or substantially X on a particular measurement scale measures within a range between X plus an industry-standard upper tolerance for the specified measurement and X minus an industry-standard lower tolerance for the specified measurement. Because tolerances can vary between different materials, processes and between different models, the tolerance for a particular measurement of a particular component can fall within a range of tolerances.
As used herein, the terms “optional” or “optionally” mean that the subsequently described event or circumstance can or cannot occur, and that the description includes instances where said event or circumstance occurs and instances where it does not.
The word “or” as used herein means any one member of a particular list and also includes any combination of members of that list. Further, one should note that conditional language, such as, among others, “can,” “could,” “might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain aspects include, while other aspects do not include, certain features, elements and/or steps. Thus, such conditional language is not generally intended to imply that features, elements and/or steps are in any way required for one or more particular aspects or that one or more particular aspects necessarily include logic for deciding, with or without user input or prompting, whether these features, elements and/or steps are included or are to be performed in any particular aspect.
Disclosed are components that can be used to perform the disclosed methods and systems. These and other components are disclosed herein, and it is understood that when combinations, subsets, interactions, groups, etc. of these components are disclosed that while specific reference of each various individual and collective combinations and permutations of these may not be explicitly disclosed, each is specifically contemplated and described herein, for all methods and systems. This applies to all aspects of this application including, but not limited to, steps in disclosed methods. Thus, if there are a variety of additional steps that can be performed it is understood that each of these additional steps can be performed with any specific aspect or combination of aspects of the disclosed methods.
Disclosed is a guardrail clamp assembly and associated methods, systems, devices, and various apparatus. Example aspects of the guardrail clamp assembly can comprise a clamp body, a post fastener, a slot stop, and a clamp spring. It would be understood by one of skill in the art that the guardrail clamp assembly is described in but a few exemplary embodiments among many. No particular terminology or description should be considered limiting on the disclosure or the scope of any claims issuing therefrom.
Example aspects of the fall protection system 100 can comprise a guardrail support frame 108. The guardrail support frame 108 can comprise at least one substantially vertical guardrail post 110. Each of the guardrail posts 110 can be secured to a corresponding one of the vertical pillars 150. For example, in the present aspect, the guardrail posts 110 can comprise at least a first guardrail post 110a secured to the first pillar 150a and a second guardrail post 110b secured to the second pillar 150b. According to example aspects, each of the guardrail posts 110 can comprise a metal material, such as steel. In some aspects, the guardrail posts 110 can be formed as extruded steel posts. In other aspects, the guardrail posts 110 can comprise any other suitable material known in the art, including but not limited to other metals, and/or can be manufactured using any other desired method. In other aspects, the guardrail posts 110 can comprise a non-metal material. Moreover, in other aspects, the fall protection system 100 can comprise more or fewer guardrail posts 110. For example, the fall protection system 100 may comprise additional guardrail posts 110, each of which can be secured to an additional pillar 150.
The fall protection system 100 can further comprising one or more lateral safety guardrails 125 supported by the guardrail support frame 108. In the present aspect, the lateral safety guardrails 125 can extend laterally between the first and second guardrail posts 110a,b, and thus, can extend between the first and second pillars 150a,b. The lateral safety guardrails 125 can be oriented about horizontally, as shown in the present aspect, or can be oriented at an acute angle relative to horizontal. In the present aspect, each of the lateral safety guardrails 125 can be formed as a flexible guardrail strap 125. In other aspects, the lateral safety guardrails 125 can be semi-rigid or rigid. Furthermore, in the present aspect, the guardrail straps 125 can comprise an upper guardrail strap 125a, a middle guardrail strap 125b, and a lower guardrail strap 125c. Other aspects of the fall protection system 100 can comprise more or fewer of the guardrail straps 125 extending between the first and second guardrail posts 110a,b. Example aspects of the guardrail straps 125 can comprise a plastic material, such as, for example, nylon webbing. In other aspects, the guardrail straps 125 can comprise any other suitable material known in the art. In some aspects, the guardrail straps 125 can be inelastic or semi-inelastic, while in other aspects, the guardrail straps 125 can be elastic. Additionally, in example aspects, a length of each guardrail strap 125 can be sized to accommodate varying distances between the first and second guardrail posts 110a,b.
Example aspects of the guardrail support frame 108 can further comprise one or more substantially vertical reinforcement post assemblies 200 (shown in
According to example aspects, each of the guardrail straps 125 can be mounted to the first guardrail post 110a by a corresponding guardrail attachment assembly 120. The guardrail attachment assemblies 120 can be vertically spaced along a length of the first guardrail post 110a, as shown. In example aspects, each of the guardrail straps 125 can be rolled up on the corresponding guardrail attachment assembly 120. To extend each of the guardrail straps 125 from the first guardrail post 110a to the second guardrail post 110b, the guardrail strap 125 can be unrolled or partially unrolled by pulling a free end 126 of the guardrail strap 125 towards the second guardrail post 110b. The free end 126 can be releasably secured to the second guardrail post 110b and the guardrail strap 125 can be held taut between the first and second guardrail posts 110a,b, as described in further detail below. With the guardrail straps 125 extended between the first and second guardrail posts 110a,b, the fall protection system 100 can define a substantially upright boundary 105 between the first and second pillars 150a,b, as shown.
As previously described, in some aspects, the fall protection system 100 can extend between additional pillars 150. As shown, in the present aspect, the fall protection system 100 can comprise a plurality of additional guardrail straps 125, each mounted to the second guardrail post 110b by an additional one of the guardrail attachment assemblies 120. Each of the additional guardrail straps 125 can be configured to extend between the second pillar 150b and an adjacent third pillar (not shown) of the building structure 140.
Example aspects of the fall protection system 100 can further comprise one or more pillar attachment assemblies 130. Each of the pillar attachment assemblies 130 can be configured to couple a corresponding one of the guardrail posts 110 to the corresponding vertical pillar 150. Securing the upright boundary 105 to the vertical pillars 150 can prevent movement thereof and ensure safe and proper functioning of the fall protection system 100. For example, the pillar attachment assemblies 130 can comprise a first pillar attachment assembly 130a coupling the first guardrail post 110a to the first pillar 150a and a second pillar attachment assembly 130b coupling the second guardrail post 110b to the second pillar 150b. As shown, each pillar attachment assembly 130 can comprise a pillar attachment device 132 and a pillar attachment strap 135 that can be rolled up on the pillar attachment device 132.
Each pillar attachment device 132 can be mounted to the corresponding guardrail post 110, and the corresponding pillar attachment strap 135 can extend from the pillar attachment device 132 and wrap fully around the corresponding pillar 150. To wrap the pillar attachment strap 135 around the pillar 150, the pillar attachment strap 135 can be unrolled or partially unrolled by pulling a free end thereof around the pillar 150. The free end can then be releasably coupled to the corresponding guardrail post 110 to secure the pillar attachment strap 135 tautly around the pillar 150. In the present aspect, only one of the pillar attachment assemblies 130 secures each of the first and second guardrail posts 110a,b to the corresponding first and second pillars 150a,b. However, in other aspects, the fall protection system 100 can comprise additional pillar attachment assemblies 130 for securing each of the first and second guardrail posts 110a,b to the first and second pillars 150a,b. According to example aspects, a length of each pillar attachment strap 135 can be sized to accommodate pillars 150 of varying thicknesses.
According to example aspects, a strap engagement slot 222 can extend substantially vertically into the reinforcement post 210 at the lower post end 214. The lower guardrail strap 125c can extend laterally through the strap engagement slot 222 to secure the lower guardrail strap 125c to the reinforcement post assembly 200. The strap engagement slot 222 is also shown in
In example aspects, a clamp end cap 224 can be coupled to the upper clamp assembly 230a. The clamp end cap 224 can comprise a rubber material in some aspects; in other aspects, the clamp end cap 224 can comprise plastic, metal, or any other suitable material. The middle clamp assembly 230b can be substantially the same as the upper clamp assembly 230a, without the clamp end cap 224. According to example aspects, the upper clamp assembly 230a can be slipped over reinforcement post 210 at either the upper post end 212 or the opposing lower post end 214 and can be slid along the reinforcement post 210 to position the upper clamp assembly 230a at or proximate to the upper post end 212. Similarly, the middle clamp assembly 230b can be slipped over the reinforcement post 210 at either the upper post end 212 or the opposing lower post end 214 and can be slid along the reinforcement post 210 to position the middle clamp assembly 230b at the middle post region 216.
Additionally, according to example aspects, the reinforcement post assembly 200 can comprise a fall arrest bracket 240 coupled to the reinforcement post 210. As described in further detail below, a user safety harness can be attached to the fall arrest bracket 240. In the present aspect, the fall arrest bracket 240 can be coupled to the reinforcement post 210 between the upper clamp assembly 230a and the middle clamp assembly 230b. In other aspects, the fall arrest bracket 240 can be positioned at any suitable location along the reinforcement post 210. In other aspects, the reinforcement post assembly 200 can comprise additional fall arrest brackets 240 or may not comprise the fall arrest bracket 240. The reinforcement post assembly 200 may comprise any other suitable fall arrest device(s) attached thereto.
Each of the guardrail clamp assemblies 230 can comprise a clamp body 330, a post fastener 332 that can secure the clamp body 330 to the reinforcement post 210, and a clamp spring 340 that can bias the guardrail clamp assembly 230 to an untightened configuration (as shown in
The post fastener 332 can be untightened and tightened to adjust a width of the clamp slot 344 to reconfigure the guardrail clamp assembly 230 between the untightened configuration and a tightened configuration (shown in
In example aspects, the clamp spring 340 can be arranged between the front post side 218 of the reinforcement post 210 and the front clamp wall 350 of the clamp body 330. The clamp spring 340 can bias the front clamp wall 350 away from the front post side 218 to the untightened configuration. In the untightened configuration, the bottom slot end 346 can be open and the guardrail strap 125 can be loosely received within the clamp slot 344. As the post fastener 332 is tightened, the spring force of the clamp spring 340 can be overcome and the front clamp wall 350 can be drawn towards the front post side 218, as described in further detail below. In the present aspect, the clamp spring 340 can be a V-shaped button spring clip 342. The button spring clip 342 can be formed from stainless steel in example aspects; however, in other aspects, the button spring clip 342 can be formed from any other suitably resilient material. In other aspects, the clamp spring 340 can be any other suitable spring known in the art.
The primary slot stop 360 can be arranged in an unblocked position, wherein the bottom slot end 346 of the clamp slot 344 is unblocked by the primary slot stop 360, and a blocked position, wherein the bottom slot end 346 of the clamp slot 344 is blocked by the primary slot stop 360. According to example aspects, the primary slot stop 360 can be substantially similar to the post fastener 332. That is, in example aspects, the primary slot stop 360 can be another one of the threaded bolt fasteners 334, which can extend through the front clamp wall 350 of the clamp body 330. The threaded bolt fastener 334 can comprise the threaded shaft 336 and the adjustment knob 338. The threaded shaft 336 of the primary slot stop 360 can engage a corresponding threaded stop bore 632 (shown in
In example aspects, a first clamp sidewall 370 and a second clamp sidewall 670 (shown in
Additionally, in some aspects, each of the first clamp sidewall 370 and the second clamp sidewall 670 can define a secondary slot stop 380 at a bottom wall end 356 thereof. Each of the secondary slot stops 380 can be formed as a stop hook 382. The stop hook 382 can extend towards the rear clamp wall 352, at least partially traversing the clamp slot 344 in the untightened configuration. In the tightened configuration, the stop hook 382 of the first clamp sidewall 370 can be positioned at a first post side 312 of the reinforcement post 210, and the stop hook 382 of the second clamp sidewall 670 can be positioned at an opposite second post side 314 of the reinforcement post 210. Thus, in the tightened configuration, the stop hooks 382 can further block the bottom slot end 346 of the clamp slot 344 to aid in retaining the guardrail strap 125 within the clamp slot 344.
Similarly, a stop rivet nut 630, or other suitable nut or fastener defining the threaded stop bore 632, can be mounted within a front clamp opening 634 formed through the front clamp wall 350 of the clamp body 330, proximate to the bottom slot end 346 of the clamp slot 344. The stop rivet nut 630 can define the threaded stop bore 632, and the threaded shaft 336 of the primary slot stop 360 can engage the threaded stop bore 632. The distal stop end 362 of the threaded shaft 336 of the primary slot stop 360 can be spaced from the front post side 218 in the unblocked position, as shown. In the blocked position, the distal stop end 362 of the primary slot stop 360 can extend transversely across the clamp slot 344 and through a front post opening 636 formed through the front post side 218 of the reinforcement post 210. In some aspects, a guide rivet nut 640 defining a threaded guide bore 642, or other suitable nut or fastener defining the threaded guide bore 642, can be mounted within the front post opening 636, and the threaded shaft 336 of the primary slot stop 360 can engage the threaded guide bore 642 in the blocked position. Other aspects, however, such as the aspect shown in
The clamp spring 340 can be the button spring clip 342 in the present aspect, which can be arranged within the clamp slot 344 between the front post side 218 of the reinforcement post 210 and the front clamp wall 350 of the clamp body 330. The button spring clip 342 can define a substantially V-shaped resilient spring portion 650 and a button tab 652 extending from the substantially V-shaped resilient spring portion 650. The button spring clip 342 can be inverted such that the V-shaped resilient spring portion 650 can be arranged upside-down, as shown. The V-shaped resilient spring portion 650 can define a first leg 654 confronting an outer post surface 614 of the front post side 218 of the reinforcement post 210 and a second leg 656 confronting an inner clamp wall surface 680 of the front clamp wall 350. The first leg 654 can define a first end 658 of the V-shaped resilient spring portion 650, and the second leg 656 can define a second end 660 of the V-shaped resilient spring portion 650. A spring vertex 662 of the V-shaped resilient spring portion 650 can be oriented vertically above the first end 658 and the second end 660. The button tab 652 can extend outward from the first leg 654 proximate to the first end 658 and can engage a button opening 616 formed through the front post side 218. In other aspects, the clamp spring 340 can be arranged between the rear clamp wall 352 and the rear post side 320.
Each of the first clamp sidewall 370 and the second clamp side wall can define the corresponding substantially V-shaped notch 372. Each V-shaped notch 372 can define the forward edge 374, and the plurality of gripping teeth 376 can be formed along the forward edge 374. In the present aspect, the forward edge 374 of each V-shaped notch 372 can be oriented substantially vertical, while a rearward edge 710 of each V-shaped notch 372 can angle towards the rear clamp wall 352. Each of the first clamp sidewall 370 and second clamp sidewall 670 can further define the stop hook 382 arranged at the bottom wall end 356 thereof and extending rearward towards the rear clamp wall 352. Each of the stop hooks 382 can curve slightly upward in the present aspect, relative to the orientation shown.
Referring to
In some example aspects, the front clamp wall 350 can be wider than the front post side 218. When the post fastener 332 is tightened to configure the clamp assembly 230 in the tightened configuration, the forward edge 374 of each of the first clamp sidewall 370 and the second clamp sidewall 670 can be drawn past the front post side 218 to be arranged at the first post side 312 (shown in
One should note that conditional language, such as, among others, “can,” “could,” “might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and/or steps. Thus, such conditional language is not generally intended to imply that features, elements and/or steps are in any way required for one or more particular embodiments or that one or more particular embodiments necessarily include logic for deciding, with or without user input or prompting, whether these features, elements and/or steps are included or are to be performed in any particular embodiment.
It should be emphasized that the above-described embodiments are merely possible examples of implementations, merely set forth for a clear understanding of the principles of the present disclosure. Any process descriptions or blocks in flow diagrams should be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process, and alternate implementations are included in which functions may not be included or executed at all, may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present disclosure. Many variations and modifications may be made to the above-described embodiment(s) without departing substantially from the spirit and principles of the present disclosure. Further, the scope of the present disclosure is intended to cover any and all combinations and sub-combinations of all elements, features, and aspects discussed above. All such modifications and variations are intended to be included herein within the scope of the present disclosure, and all possible claims to individual aspects or combinations of elements or steps are intended to be supported by the present disclosure.
The present application claims the benefit of U.S. Provisional Patent Application No. 63/598,777, filed Nov. 14, 2023, which is hereby specifically incorporated by reference herein in its entirety.
Number | Date | Country | |
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63598777 | Nov 2023 | US |