The present disclosure relates generally to ladders and, more particularly, to top caps, accessory trays or attachments, and ladders incorporating the same.
Ladders are conventionally utilized to provide a user thereof with improved access to elevated locations that might otherwise be inaccessible. Ladders come in many shapes and sizes, such as straight ladders, straight extension ladders, step ladders, and combination step and extension ladders. So-called combination ladders may incorporate, in a single ladder, many of the benefits of multiple ladder designs.
Ladders known as step ladders are self-supporting, meaning that they do not need to be leaned against a wall, pole or other structure for stability. Rather, step ladders may be positioned on a floor (or other similar surface) such that at least three, and conventionally four, feet of the ladder provide a stable support structure for a user to climb upon, even in an open space (e.g., outside or in the middle of a room) without a wall, roof, pole or other type of structure being necessary for the stability of the ladder.
Often it is desirable for a user to handle various items while standing on a ladder, including tools (e.g., screwdrivers, putty knives, paint brushes, hammers, wrenches, power tools, etc.) and supplies (nails, screws, paint, etc.). The ability to keep tools and supplies with a person while on a ladder, such that they don't have to continue ascending and descending a ladder in order to change tools or get new supplies, enables a user to save time and effort and also provides a safer experience for the user.
It is a continued desire within the industry to provide ladders and ladder components that are safe, efficient and effective tools for a user thereof. Many efforts have been and continue to be expended in an effort to improve the performance of ladders, improve the associated manufacturing processes and to provide the end user with a good experience when using ladders.
Embodiments of the present disclosure include ladders, top caps and ladder accessories. In one embodiment, a stepladder may include a first pair of spaced apart rails, at least one rung extending between and coupled with the first pair of spaced apart rails, a second pair of spaced apart rails and a top cap with at least one of the first pair of spaced apart rails, and the second pair of spaced apart rails. The top cap includes a retaining structure, the retaining structure including a first sidewall extending from a floor portion and a first lip adjacent the first sidewall.
In one embodiment, the retaining structure includes a second sidewall extending from the floor portion and a second lip adjacent the second sidewall.
In one embodiment, the first sidewall is spaced from the second sidewall to define an angle between approximately 8 degrees and approximately 12 degrees.
In one embodiment, the first sidewall is spaced from the second sidewall to define an angle of approximately 10 degrees.
In one embodiment, the first sidewall and the second sidewall are spaced to receive a cylindrical canister therebetween.
In one embodiment, the first sidewall and the second sidewall are spaced to receive a cylindrical canister having a volume of approximately one gallon.
In one embodiment, the first sidewall includes a first section and a second section, the first section and the second section being joined by an arcuate section.
In one embodiment, the first lip is positioned adjacent the first section and wherein a second lip is positioned adjacent the second section.
In one embodiment, the top cap of the ladder further comprises a second retaining structure including a second sidewall extending from a second floor portion and a second lip adjacent the second sidewall.
In one embodiment, the top cap of the ladder further comprises a third retaining structure including a third sidewall extending from a third floor portion and a third lip adjacent the third sidewall.
In one embodiment, the first retaining structure is sized and configured to retain a substantially cylindrical canister having a volume of approximately one gallon; the second retaining structure is sized and configured to retain a substantially cylindrical canister having a volume of approximately one quart; and the third retaining structure is sized and configured to retain a substantially cylindrical canister having a volume of approximately one pint.
In one embodiment, wherein the top cap includes at least one storage compartment. The first sidewall can include a first portion and a second portion, wherein the first portion is substantially straight and the second portion is curved or angled relative to the first portion.
In one embodiment, wherein the top cap includes at least one opening formed in a front face of the top cap.
In one embodiment, further comprising a pair of hinges coupled the second pair of spaced apart rails with the first pair of spaced apart rails.
In one embodiment, wherein the top cap does not contact the second pair of spaced part rails.
In accordance with another embodiment of the present disclosure, a top cap for a ladder is provided. The top cap comprises a body being sized and configured for coupled with a pair of spaced apart rails and a retaining structure formed in the body, the retaining structure including a first sidewall extending from a floor portion and a first lip adjacent the first sidewall, the first sidewall and the first lip defining a lateral groove.
In one embodiment, the body is further sized and configured for coupling with an adjustable tray.
In one embodiment, the retaining structure includes a second sidewall extending from the floor portion and a second lip adjacent the second sidewall.
In one embodiment, the first sidewall is spaced from the second sidewall to define an angle between approximately 8 degrees and approximately 12 degrees.
In one embodiment, the first sidewall is spaced from the second sidewall to define an angle of approximately 10 degrees.
In one embodiment, the first sidewall includes a first section and a second section, the first section and the second section being joined by an arcuate section.
In one embodiment, wherein the first lip is positioned adjacent the first section and wherein a second lip is positioned adjacent the second section.
In one embodiment, the top cap further comprises a second retaining structure including a second sidewall extending from a second floor portion and a second lip adjacent the second sidewall.
In one embodiment, the top cap further comprises a third retaining structure including a third sidewall extending from a third floor portion and a third lip adjacent the third sidewall.
In one embodiment, the first retaining structure is sized and configured to retain a substantially cylindrical canister having a volume of approximately one gallon; the second retaining structure is sized and configured to retain a substantially cylindrical canister having a volume of approximately one quart; and the third retaining structure is sized and configured to retain a substantially cylindrical canister having a volume of approximately one pint.
In one embodiment, the top cap includes at least one storage compartment.
In one embodiment, the top cap includes at least one opening formed in a front face of the top cap. The top cap can include a second retaining structure including a second sidewall extending downward from the floor portion, the second sidewall including a second shoulder extending horizontally from the second sidewall.
It is noted that aspects, features and components of one described embodiment may be combined with aspects, features or components of other defined embodiments herein.
The foregoing and other advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which:
Referring to
The ladder 100 also includes a second assembly 108 having a pair of spaced apart rails 110. The second assembly 108 may also include cross-members or other structural components that extend between the rails 110 to provide a desired level of structural support and strength to the spaced apart rails 110. In some embodiments, the cross-members of the second assembly 108 may be configured as rungs to support a user. The second assembly 108, thus, may be used to help support the ladder 100 when in an intended operational state, such as depicted generally in
In the embodiment shown in
It is noted that in the embodiment shown in
In the embodiment shown in
The first and second assemblies 102 and 108 may be formed of a variety of materials and using a variety of manufacturing techniques. For example, in one embodiment, the rails 104 and 110 may be formed of a composite material, such as fiberglass, while the rungs and other structural components may be formed of aluminum or an aluminum alloy. In other embodiments, substantially all of the components of the assemblies may be formed of aluminum or an aluminum alloy. In other embodiments, the assemblies 102 and 108 (and their various components) may be formed of other materials including other composites, plastics, polymers, various metals and metal alloys.
The ladder 100 may also include various bracing, structural reinforcement members and other components such as described in the previously incorporated U.S. Patent Publication No. US2018/0298691 and U.S. Pat. No. 9,422,767.
The ladder 100 may further include an accessory, which may also be referred as a tray 122, coupled with top cap 116. In some embodiments, the tray 122 may be coupled to the rails 104 of the first assembly 102 at a location between the hinges 114 and the top cap 116. The tray 122 may be selectively positioned and maintained in a variety of positions including, for example, a first position wherein the tray 122 extends upward from the top cap 116, a second position wherein the tray 122 extends laterally outward (generally horizontally) from the top cap 116, and a third position wherein the tray 122 extends downward from the top cap 116 (e.g., as shown in
Referring now to
The body 130 of the top cap 116 may include or define a variety of other openings of through-holes, such as through-hole 134, through-holes 136a and 136b, through-holes 138a-138c, and through-holes 140a and 140b. In some embodiments, these through-holes may be used to hold or store various tools (e.g., screw drivers, hammers, wrenches, paint brushes, etc.). In some examples, some of the through-holes (e.g., through-holes 140a and 140b located in the front face of the body 130) may be configured to receive a clip or a carabiner to clip other tools or supplies to the top cap 116 for storage. Another through-hole 142 may be sized to receive larger items for storage, including for example, the chuck end of a power drill. In some embodiments, one or more through-holes 144 may have an open (i.e., non-closed) periphery, enabling the receipt of enlarged member (e.g., a knot formed in a cord, a ball or knob attached to a portion of a cord) coupled with some other object. For example a looped bungee cord may be attached to a tool, and a ball or knob attached to the bungee cord may be retained in the open-sided through hole 144—holding the tool (or other object) from the top cap 116.
In addition to the openings or through-holes, one or more closed-bottomed compartments or recesses 146a and 146b may be formed in the body 130 of the top cap 116 to store various items (e.g., screws, nails, other tools or devices, etc.). A storage compartment 146a can be positioned between sidewalls (e.g., 162a) of at least one of the retaining structures (e.g., 160a). In some embodiments, one or more retaining structures (e.g., 160b, 160c) can be positioned between the sidewalls (e.g., 162a) of a retaining structure (e.g., 160a). Additionally, the additional retaining structures (e.g., 160b, 160c) can be positioned offset from a centerline of the first retaining structure, or, in other words, the additional retaining structures can have centerlines between their sidewalls (e.g., each pair of sidewalls 162b and 162c) that are spaced apart from a centerline between the sidewalls (e.g., 162a) of the first retaining structure, as shown in at least
Other features of the body 130 may include portions for connection to rails (e.g., portions 148) and portions for connecting to the accessory tray 122 (e.g., portions 150). In some embodiments, it is noted that the top cap 116 may not be configured for mounting with an accessory tray 122. Such a coupling of the top cap 116 with an accessory tray 122 is described in U.S. patent application Ser. No. 16/891,937, previously incorporated by reference. In some embodiments, the top cap 116 may be configured to be coupled with rails from both front and rear rail assemblies and, further, may be configured to be pivotally coupled to some of the rails.
Additionally features of the top cap 116 may include retaining structures configured, for example, to couple a paint can or similar structure with the top cap 116. Such feature may be configured to keep a paint can from tipping over or spilling while positioned at the top of the ladders. For example, the retaining features may include one or more grooves and shoulders formed in a sidewall portion of the body 130.
In the embodiment depicted in
In some embodiments, the lip or shoulder 164b may be positioned above the entirety of the sidewall 162b (i.e., extending along the entire length of each segment 166a-c). In other embodiments, the lip or shoulder 164b may be positioned over a portion of one or more segments. In some embodiments, a lip or shoulder is a structure extending normal to another surface (e.g., a sidewall). The lip or shoulder can also be defined as a portion of material extending in a cantilever fashion from another surface or extending laterally over a substantially vertical sidewall surface. For example, as shown in
As seen in
The retaining structures 160a-c may be configured to each accept a differently sized container. For example, the first retaining structure 160a may be configured to receive a gallon-sized paint can, the second retaining structure 160b may be configured to receive a quart-sized paint can, and the third retaining structure 160c may be configured to receive a pint-sized paint can. Of course, other sizes may be accommodated as may be desired. A first or top retaining structure 160a can have an open end at the front face of the top cap and an open end at the rear face of the top cap, while the second and third retaining structures 160b, 160c can have open ends only at one of the front or rear faces. In the embodiment of
While the embodiment shown in
The top cap 116 may be formed from a variety of materials using a variety of manufacturing techniques. In one embodiment, the top cap 116 may be formed as a unitary, homogenous member from a material such as plastic using an appropriate molding process. In other embodiments, the top cap 116 either as a unitary member or from multiple, individual components from any of a variety of materials including, for example, plastics, metals, composites or combinations thereof.
While the retaining structures 160a-c have been described as being associated with a top cap 116, they may alternatively, or additionally, be formed in or otherwise associated with the tray 122 such that when the tray 122 is in a desired position relative to the top cap 116 or the associated rails (e.g., 104), a container or canister may be stably coupled with and supported by the tray 122.
Further, the retaining structures may be formed in or associated with another accessory, including a removable or detachable accessory. For example,
The rungs 206 are spaced apart, substantially parallel to one another, and are configured to be substantially level when the ladder 200 is in an orientation of intended use so that the rungs 206 may be used as “steps” for a user to ascend the ladder 200 as will be appreciated by those of ordinary skill in the art. In various embodiments, the upper surface of the rungs 206 may include traction features (e.g., grooves and ridges, grip tape or other anti-slip features) to provide traction to a user while standing on the rungs 206.
The ladder 200 also includes a second assembly 208 having a pair of spaced apart rails 210. A plurality of rungs 212 extend between and are coupled to the spaced apart rails 210. The rungs 116 of the second assembly 208 are spaced apart, substantially parallel to one another, and are configured to be substantially level when the ladder 200 is in an orientation for intended use so that the rungs 212 may be used as “steps” for a user to ascend the ladder 200. In various embodiments, both top and bottom surfaces of the rungs 212 may include traction features (e.g., grooves and ridges, grip tape or other anti-slip features) to provide traction to a user while standing on the rungs 212.
A top cap 216 may be coupled with the upper portions of the rails 204 of the first assembly and configured to support the weight of a user in the event that a user stands on the top cap 216. The upper surface of the top cap 216 may also include traction or anti-slip features to provide traction to a user while standing thereon.
The second assembly 208 is pivotally coupled with the first assembly 202 via a pair of hinge assemblies 220 (sometimes referred to as “hinges” herein for purposes of brevity). In the embodiment shown, the hinges 220 are spaced away from the top cap 216 along the length of the front rails 204 of the first assembly 202. The hinges 220 may be configured to selectively lock the first assembly 202 and the second assembly 208 in one or more desired positions relative to each other. Thus, for example, in
The hinges 220 also enable the second assembly 208 to selectively rotate relative to the first assembly 202 such that the rear rails 210 may be positioned (and locked) to extend at an acute angle relative to the front rails 204, placing the ladder in a step ladder configuration. In yet another configuration, the hinges 220 enable the second assembly 208 to selectively rotate relative to the first assembly 202 such that the rear rails 210 may be positioned (and locked) to extend downwardly—away from the top cap 216—with the rails 202 and 210 of each assembly being positioned immediately adjacent each other, placing the ladder in a collapsed, stored condition. Various other details and examples associated with such a ladder are described in U.S. Patent Application Publication No. US2019/0376341, published on Dec. 12, 2019, the disclosure of which is incorporated by reference herein in its entirety.
The ladder 200 further includes an accessory 230 coupled with the rails 210 of the second assembly 208. In one embodiment, The accessory 230 may include a pair of recesses or notches formed in the body thereof for receipt of, and connection to, a pair of ladder rails (e.g., ladder rails 210 of the second assembly 208) for coupling the accessory 230 to a ladder. In some embodiments, the accessory 230 may be removably coupled with the rails 210 of the second assembly 208 (using a removable screw, bolt, or a latching device) and then be used or removed as desired by a user of the ladder. In some cases, the accessory 230 may be positioned adjacent a rung 212 or even take place of such a rung and be effectively fixed to the rails 210 of the second assembly 208 such that a user could not easily remove the accessory 230 in a nondestructive manner (e.g., such as by drilling through rivets or other fasteners or by destroying an adhesive or material bond between the accessory and the rails). Thus, when the ladder 200 is in a step ladder configuration or a stored configuration, the accessory 230 is positioned toward the “bottom” of the second assembly 208. Additionally, the accessory 230 is sized, shaped and positioned such that it does not cause interference between the second assembly 208 and the first assembly 202 when placed in the stored state. In one embodiment, the accessory 230 may include one or more retaining structures, similar to those described above (e.g., retaining structures 160a-c), configured to securely and stably hold a canister, such as a paint can or similar structure, on its top or bottom surface.
While the invention may be susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and have been described in detail herein. However, it should be understood that the invention is not intended to be limited to the particular forms disclosed. Additionally, features of one embodiment may be combined with features of other embodiments without limitation. The invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following appended claims.
This application claims the benefit of U.S. Provisional Application No. 63/088,239, filed on 6 Oct. 2020, which is hereby incorporated by reference herein in its entirety.
Number | Date | Country | |
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63088239 | Oct 2020 | US |