This disclosure relates to ladder stabilization systems. More specifically, this disclosure relates to ladder docks for fixing a position of a ladder, such as a portable ladder, relative to an elevated structure.
Ladders are commonly used to reach portions of an elevated structure not otherwise accessible. Among many other uses, a ladder can allow a user to reach such an elevated structure to perform maintenance and repair or as part of a building process but are often used only temporarily—for hours or days at most in many cases—and are therefore often of the portable variety. Portable ladders—especially in an extended condition where the elevated structure is quite high off the ground—are by definition not generally fixed to either the ground or to the elevated structure. Such ladders generally depend on gravity, friction, and the care taken by the user of the ladder for their stability.
Once a ladder is used to access an elevated structure, passing through, over, or around the ladder and safely descending to a surface of the elevated structure can present its own challenges, especially when a parapet is defined at or near an edge of the elevated structure.
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 to neither 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.
In one aspect, disclosed is a ladder dock comprising: a mounting panel; and a connecting panel extending from the mounting panel, the ladder dock defining a ladder notch sized to receive and fix a position of a ladder relative to the ladder dock.
In a further aspect, disclosed is a ladder dock system comprising: a ladder dock comprising: a mounting panel; and a connecting panel connected to the mounting panel, the ladder dock defining a ladder notch; a ladder configured to provide access to an elevated structure and sized to rest against the ladder dock; the ladder notch sized to receive and fix a position of the ladder relative to the ladder dock.
In yet another aspect, disclosed is a method of using a ladder dock, the method comprising: securing the ladder dock to an elevated structure; and inserting a ladder in a ladder notch defined by the ladder dock.
Various implementations described in the present disclosure may comprise 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 advantages of such implementations may be realized and obtained by means of the systems, methods, features particularly pointed out in the appended claims. These and other features will become more fully apparent from the following description and appended claims, or may be learned by the practice of such exemplary implementations as set forth hereinafter.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several aspects of the disclosure and together with the description, serve to explain various principles of the disclosure. The drawings are not necessarily drawn to scale. 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 their 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, 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 their 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 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 a quantity of one of a particular element can comprise two or more such elements unless the context indicates otherwise. In addition, any of the elements described herein can be a first such element, a second such element, and so forth (e.g., a first widget and a second widget, even if only a “widget” is referenced).
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 comprises 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” or “substantially,” 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 may or may not occur, and that the description comprises 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 comprises any combination of members of that list. The phrase “at least one of A and B” as used herein means “only A, only B, or both A and B”; while the phrase “one of A and B” means “A or B.”
To simplify the description of various elements disclosed herein, the conventions of “left,” “right,” “front,” “rear,” “top,” “bottom,” “upper,” “lower,” “inside,” “outside,” “inboard,” “outboard,” “horizontal,” and/or “vertical” may be referenced. Unless stated otherwise, “front” describes that end of the system and ladder nearest to and occupied by a user of the system when the user is climbing up the ladder; “rear” is that end of the system and ladder that is opposite or distal the front; “left” is that which is to the left of or facing left from the user climbing up the ladder and facing towards the front; and “right” is that which is to the right of or facing right from the same user climbing up the ladder and facing towards the front. “Horizontal” or “horizontal orientation” describes that which is in a plane extending from left to right and aligned with the horizon. “Vertical” or “vertical orientation” describes that which is in a plane that is angled at 90 degrees to the horizontal.
In one aspect, a ladder dock and associated methods, systems, devices, and various apparatuses are disclosed herein. In one aspect, the ladder dock can comprise a mounting panel and can define a ladder notch.
The elevated structure 50 can define a raised edge 60. In some aspects, as shown, the raised edge 60 can comprise a parapet or wall 62 extending from the surface 51. For example and without limitation, the wall 62 can measure a wall height 410 (shown in
The ladder dock 100 can comprise a mounting panel 110, which can be positioned in facing contact with and mounted to the surface 51 and, in some aspects, the top surface 61 of the raised edge 60. The ladder dock 100 and, more specifically, the mounting panel 110 can define one or more openings such as, for example and without limitation, the mounting openings 192,194 to facilitate attachment of the ladder dock 100 to the elevated structure 50 using fasteners described below and, optionally where desired, to a bracket 95 (shown in
The ladder dock 100 can comprise a ladder rest panel 130, which can be connected, directly or indirectly, to the mounting panel 110. The ladder rest panel 130 can be angled with respect to the mounting panel 110. One or more ears 140a,b can extend from or be formed in the ladder rest panel 130. The ears 140a,b can extend at an angle from the ladder rest panel 130. Together with the ladder rest panel 130, the ears 140a,b can define a ladder notch 180, by which the ladder dock 100 can be configured to prevent lateral movement, i.e., left-right or sideways movement, of a ladder 700 (shown in
A ladder dock system 80 can comprise the ladder dock 100 and can further comprise retaining fasteners 150a,b, which can be secured to and extend from the ladder dock 100. More specifically, the retaining fasteners 150a,b can be secured to and extend from any of the mounting panel 110, a connecting panel 120, the ladder rest panel 130, or the ears 140a,b.
In some aspects, the ladder rest panel 130 can be connected directly to and extend from the mounting panel 110. In other aspects, the ladder rest panel 130 can be connected to and extend from the mounting panel 110 through the connecting panel 120, which as is described below can provide relief for at least a portion of the raised edge 60. In some aspects, further panels such as a pair of auxiliary panels 160a,b can be connected directly to and extend directly from the mounting panel 110. In other aspects, the pair of auxiliary panels 160a,b can be connected to and extend from the mounting panel 110 through connecting panels 165a,b (165b shown in
Stop panels 170a,b can extend from any of the aforementioned panels to help, for example, maintain a proper orientation of the ladder dock 100 with respect to the elevated structure 50. In some aspects, as shown, the stop panel 170a can extend from the connecting panel 120 or from the ladder rest panel 130—depending on the precise point or location of bending of the stop panel 170a—and the stop panel 170b can extend from the ladder rest panel 130.
The ladder dock 100 can be secured to the elevated structure 50 using fasteners (not shown) extending through openings 190 defined in the mounting panel 110. More specifically, the ladder dock 100 and the mounting panel 110 can define surface mounting openings 192 and bracket mounting openings 194. In some aspects, a single opening 190 or one each of the mounting openings 192,194 can suffice. In other aspects, the ladder dock 100 and the mounting panel 110a can define a plurality of either the surface mounting openings 192 or the bracket mounting openings 194 or a plurality of each of the mounting openings 192,194. Defining the plurality of the surface mounting openings 192 in the ladder dock 100 and orienting a lengthwise dimension of the surface mounting openings 192 as shown can facilitate alignment of any front-and-rear set of surface mounting openings 192 with a structural member 1650 (shown in
In some aspects, as shown, a long dimension or length of the surface mounting openings 192 can be parallel to a lengthwise direction of the wall 62, which can facilitate adjustment of a position of the ladder dock 100 with respect to the elevated structure 50. In other aspects, portions of the surface mounting openings 192 can be angled with respect to the lengthwise direction of the wall 62 or can be orthogonal to the lengthwise direction of the wall 62. In some aspects, the mounting openings 192,194,196 (mounting openings 196 shown in
To secure the mounting panel 110 to the elevated structure and, more specifically, the wall 62 the aforementioned fasteners can be installed through the openings 190 (shown in
Per regulatory requirements such as those issued by the Occupational Safety & Health Administration (OSHA), a minimum ladder angle on a portable ladder such as the ladder 700 (shown in
As shown, all of the portions of the ladder dock 100 shown in
The ears 140a,b can define one or more attachment openings 690 and, more specifically, attachment openings 690a,b for securing a first end of the retaining fasteners 150a,b (shown in
In some aspects, as shown in
The upper anchor 910 can comprise a base 950 defining mounting openings 958 for securing the upper anchor 910 to the ladder dock 100. The upper anchor 910 can comprise a frame 960, which can extend from the base 950 or further define the base 950 in a vertical direction away from the surface 51 of the elevated structure 50. The frame 960, which can be formed from a plurality of separate members as shown, can comprise a ladder bracket or engagement bracket 975 for contacting and retaining a portion of the ladder 700 (shown in
In some aspects, the lower anchor 1010 can comprise a first portion 1030, and the lower anchor 1010 can further comprise a second portion 1040 assembled to the first portion 1030. In other aspects, neither the first portion 1030 nor the second portion 1040 is required, and the cable 1090 can be secured to one of the ladder rungs 720 of the ladder 700 directly or through a fastener (not shown) or through the cable attachment 1020. As shown, pins 1050a,b can be used to secure the lower anchor 1010 to the ladder 700. More specifically, the pins 1050a,b can extend through portions of the lower anchor 1010 such as, respectively, the first portion 1030 and the second portion 1040 and into the nearest ladder rung 720. Each of the pins 1050a,b can comprise a T-handle to facilitate a manual grip by even a gloved hand. Each of the pins 1050a,b can comprise a magnetic surface to cause the pins 1050a,b to be held in position against neighboring portions of the lower anchor 1010 such as respective surfaces of the first portion 1030 and the second portion 1040. Feet 1078, which can be adjustable, can be attached to and can stabilize the rails 710a,b and a base of the ladder 700 and the ladder 700 generally on a lower surface 2001 (shown in
As also shown, various other flanges can extend from panels such as, for example and without limitation, the connecting panel 120 for reinforcement and improved rigidity of the ladder dock 100, especially when loads in use might otherwise cause deformation of the panels. For example and without limitation, flanges 1120a,b (1120a shown in
As shown in
As shown in
In some aspects, as shown in
The parapet descent apparatus 2000a can comprise a parapet ladder 2010 extending from the top surface 61 of the parapet or raised edge 60 or from a position proximate to the top surface 61 of the parapet or raised edge 60 to the surface 51 of the elevated structure 50. The parapet ladder 2010 can define a first end 2015 proximate to the ladder dock 100 and a second end 2016 proximate to the surface 51. In some aspects, a portion of the parapet ladder 2010 between the first end 2015 and the second end 2016 can be angled with respect to the vertical by an angle 2070 to facilitate descent by a user. In some aspects, a portion of the parapet ladder 2010 between the first end 2015 and the second end 2016 can be oriented vertically. Feet 2018, which can be adjustable, can be attached to and can stabilize ladder rails 2017a,b (2017b shown in
The parapet descent apparatus 2000b can comprise a guide rail 2020 extending vertically upward from the ladder dock 100. As shown, the guide rail 2020 can define a first end 2025 proximate to the ladder dock 100 and a second end 2026 distal from the ladder dock 100. The guide rail 2020 can define a rail height 2024 measured from the top surface 61, which can be set to satisfy applicable ergonomic and/or safety requirements. As shown, the first end 2025 of the guide rail 2020 can comprise two ends 2021,2022, either or both of which can be secured to the ladder dock 100. As shown, the end 2021 can be secured to the ear 140b with fasteners (not shown) and the end 2022 can be secured with fasteners (not shown) to a portion of the ladder dock 100 distal from the ear 140b. The guide rail 2020 can approximately define an upside-down “U” shape or “V” shape. In some aspects, as shown, a horizontal member 2023 can extend from the end 2021 to the end 2022 and the guide rail 2020 can thereby form a closed shape. A portion of the guide rail 2020 proximate to the end 2021 can be angled with respect to the vertical by an angle 2027, and the second end 2026 or top of the guide rail 2020 can be rounded and can define a radius R2020 as shown.
The parapet descent apparatus 2000c can comprise a support arm 2030, which can be configured to mount to a side surface 63 of the parapet or raised edge 60 and can extend from the ladder dock 100 and thereby stabilize the ladder dock 100. As shown, the support arm 2030 can define a first end 2035 proximate to the ladder dock 100 and a second end 2036 distal from the ladder dock 100. The support arm 2030 can comprise a mounting bracket at either or both ends 2035,2036. As shown, the support arm 2030 can comprise a mounting bracket 2038b at the second end 2036, which can be secured to the side surface 63 with fasteners (not shown). The support arm 2030 can support any loads applied to the ladder dock, including from the parapet ladder 2010 and when the ladder dock 100 overhangs at least in part in cantilever fashion past the raised edge 60 and beyond the top surface 61.
As shown, in a similar way that the connecting panel 120 can be angled, an end of the horizontal member 2023 of the guide rail 2020a and any other of the guide rails 2020 can be angled with respect to the horizontal at an angle 2127 to provide clearance for the lip 65 (shown in
As shown, a center of the parapet ladder 2010 can be offset from a center of the ladder dock 100, including when the fall arrest device 900 is secured to the ladder dock 100. Also as shown, a parapet descent apparatus 2000d can comprise a ladder dock 100b, which can be a second ladder dock and can incorporate any or all of the same features as defined in or comprised in the ladder dock 100, and which can be positioned adjacent to the ladder dock 100. Any of the parapet ladder 2010, the guide rail 2020 (on one side of the ladder dock 100b as shown or on both sides of the ladder dock 100b), and the support arm 2030 (shown attached to the ladder dock 100) can be mounted to the second ladder dock 100b and facilitate a user's passage over the wall 62 and down the ladder 700 or the parapet ladder 2010. The second ladder dock 100b can be secured to the ladder dock 100, including with fasteners extending through panels such as the auxiliary panel 160a of the ladder dock 100 and a similar auxiliary panel (not shown) of the ladder dock 100b or a horizontal member 2223 shown, which can be used independent of a guide rail. As shown, the ladder dock 100b can comprise a vertical member 2224, to which the parapet ladder 2010 can be secured with fasteners (not shown). The ladder dock 100b itself can be attached to the wall 62 in a similar fashion as the ladder dock 100, with or without the bracket 95 (shown attached to the ladder dock 100).
Any of the parapet descent apparatuses 2000a,b,c,d including, for example and without limitation, the parapet ladder 2010, the guide rails 2020, the support arm 2030, or the ladder dock 100b can be formed at least in part from tubing members, which can be circular or, as shown, approximately square in cross-section (square except for radiused corners as shown), The mounting brackets 2038a,b can be monolithically formed from a blank.
A method of using the ladder dock 100 can comprise securing the ladder dock 100 to the elevated structure 50. The method can further comprise positioning the ladder 700 and, more specifically, inserting the ladder 700 in the ladder notch 180 defined by the ladder dock 100. The method can comprise identifying the type and pitch or angle of slope, if any, of the surface 51 of the elevated structure 50. The method can comprise identifying the absence or presence of roof edge features such as the gutter 1610. The method can comprise identifying a position and orientation of each of one or more structural members 1650 behind or under the surface 51 of the elevated structure 50, which can be, for example and without limitation, beams or roof joists. The method can comprise securing the ladder dock 100 and, more specifically, the mounting panel 110 to the surface 51. More specifically, securing the ladder dock 100 to the surface 51 can comprise securing fasteners through the surface mounting openings 192, through the surface 51, and into the aforementioned structural members 1650 of the elevated structure 50. In some aspects, securing the ladder dock 100 to the elevated structure 50 can comprise securing the ladder dock 100 to a parapet of the elevated structure 50 in one or more axes. More specifically, in some aspects, securing the ladder dock 100 to the elevated structure 50 can comprise securing the ladder dock 100 to the parapet of the elevated structure 50 directly with fasteners installed through the ladder dock 100 into to the elevated structure. In some aspects, securing the ladder dock 100 to the elevated structure 50 can comprise securing the ladder dock 100 by mechanically clamping the ladder dock 100 to the parapet of the elevated structure 50. The method can comprise extending the ladder 700 to provide the proper reach towards and beyond the ladder dock 100 as appropriate. The method can comprise securing the ladder 700 to the ladder dock 100 with one or more of the retaining fasteners 150a,b.
While not restricted to such use, in some aspects the ladder dock 100 of
Any of the structures of the ladder dock 100 can be formed from a non-metallic material such as, for example and without limitation, a reinforced fiberglass or polymer or from a metallic material such as steel. A paint coating or powder coating or use of corrosion resistant materials can facilitate use of the ladder dock 100 for extended periods outside without degradation. A portion or all of the ladder dock 100 can define a surface texture such as a diamond tread pattern for aesthetic reasons or for functional reasons such as to improve skid resistance when a user of the ladder dock 100 steps on the ladder dock 100.
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 comprise 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.
It should be emphasized that the above-described aspects 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 comprise 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 aspect(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.
This application claims the benefit of U.S. Provisional Application No. 62/969,388, filed Feb. 3, 2020, and U.S. Provisional Application No. 62/968,705, filed Jan. 31, 2020, each of which is hereby specifically incorporated by reference herein in its entirety.
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