The present invention is directed to climbing apparatuses, and more particularly, to ladder-like supports for attachment to trees, poles, and the like.
The ability to safely and efficiently climb or scale trees, poles such as telephone or powerline poles, and similar structures or surfaces is useful for reaching elevated hunting blinds, servicing utility wires, and the like. Although ladder-like “climbing sticks” are sometimes used for climbing, these are typically tied or strapped to trees or poles using loose ropes or straps, and are generally bulky and time consuming to install and remove.
The present invention provides a climbing support or apparatus that can be readily configured between a “use” configuration and a more compact “transport” configuration, and that can be readily installed and removed by one person. The climbing support can be configured in a stowage or transport configuration that is substantially more compact than the use configuration, so that several climbing supports can be carried at once by a single user. One or more retractors that are included on the climbing support provide convenient stowage of securing cables, straps, or the like when the assemblies are not in use, thus avoiding tangles or knots that are more likely to occur if the cables or straps are not stored in an organized fashion. Once the climbing support is secured to a tree or the like, steps are provided which may be used as hand-holds and/or foot-holds as a climber scales the support.
In one form of the present invention, a climbing support is provided for use in climbing a tree or pole, and includes an elongate body, a step member, a flexible elongate securing member, and a retractor. The step member extends or projects outwardly from the elongate body, and provides a hand-hold and/or foot support for a user. The flexible elongate securing member, which may optionally be a rope, a cord, a cable, a strap, a chain, or the like, or a combination thereof, is coupled to the elongate body, with at least a portion of the securing member being selectively extendable from the elongate body. The securing member can be wrapped around a tree or pole in order to attach the climbing support to the tree or pole, and the securing member is retractable at the elongate body for compact storage or transport when the securing member is not in use. The retractor is positioned at or along the elongate body, and is configured to store at least a portion of the securing member, while also permitting the securing member to be selectively extended and retracted relative to the elongate body.
In one aspect, the retractor includes a spool for selectively winding and unwinding the securing member between retracted and extended configurations. Optionally, the retractor includes a lock member for selectively securing the spool against rotation. The retractor may further include one or more of (i) a tool-engaging head to facilitate manual rotation of the spool with a tool, (ii) a spring configured to bias the spool to rotate for winding the securing member onto the spool, and (iii) a ratcheting mechanism for securing the spool against unintended unwinding of the securing member.
In another aspect, the retractor includes a tensioning pulley about which the securing member is wound. The tensioning pulley is translatable relative to the elongate body to thereby adjust tension or slack in the securing member. Optionally, the retractor further includes a substantially non-translatable pulley coupled to the elongate body and spaced from the tensioning pulley, and wherein the securing member is wound at least partially around the non-translatable pulley.
In still another aspect, the securing member includes a first end portion fixedly secured to the elongate body, a second end portion that is extendable and retractable relative to the elongate body, and a middle portion between the first and second end portions. The middle portion of the securing member extends from the first end portion, wraps around the tensioning pulley, wraps around the non-translatable pulley, and extends outwardly from the elongate body where the securing member is terminated at the second end portion.
In a further aspect, the retractor and at least a portion of the securing member are positioned inside of the elongate body, and the elongate body includes a generally tubular structure having an internal elongate divider wall to which the first end portion of the securing member and the non-translatable pulley are coupled. Optionally, the generally tubular structure of the elongate body further includes at least one outer wall spaced outwardly from the divider wall and defines an elongate channel for translatably supporting the tensioning pulley.
In a still further aspect, the tensioning pulley includes a shaft having a grasping end portion that projects outwardly from the elongate body, and a lock end portion opposite the grasping end portion. The shaft is axially movable between an unlocking position and a locking position, and the divider wall of the elongate body includes a plurality of bores in longitudinally-spaced arrangement for selectively receiving the lock end portion of the tensioning pulley in the locking position to thereby selectively secure the tensioning pulley against translation relative to the elongate body.
In yet another aspect, the step member is pivotably coupled to the elongate body, and is pivotable between an outwardly-extending position for use as a hand-hold or foot support, and a retracted position for compact stowage along the elongate body.
In another aspect, the climbing support further includes a standoff member pivotably coupled to the elongate body and configured to engage the tree or pole and to maintain a space between the elongate body and the tree or pole when the securing member is wrapped around the tree or pole. The standoff member is repositionable between a substantially horizontal orientation for engaging the tree or pole, and a substantially vertical orientation along the elongate body for compact stowage and transport.
In still another aspect, the elongate body includes an attachment element for selectively receiving and retaining a distal end portion of the securing member when the securing member is extended from the elongate body and wrapped around the tree or pole.
Optionally, the climbing support may include at least two climbing support subassemblies that are configured to be arranged end-to-end. Each of the subassemblies includes at least one of the elongate bodies and at least one of each of (i) the step members, (ii) the securing members, and (iii) the retractors. Optionally, a first of the climbing support subassemblies includes a first engaging member at a lower end thereof, a second of the climbing support subassemblies includes a second engaging member at an upper end thereof, and the first and second climbing support subassemblies are securable to one another via engagement of the first and second engaging members. Optionally, the first engaging member includes a post extending downwardly from the elongate body of the first climbing support subassembly, and the second engaging member includes an opening in the elongate body of the second climbing support subassembly. Optionally, a lock pin is provided for selectively securing the first and second engaging members together, with the first and second engaging members including respective bores that align to receive the lock pin.
In a further aspect, the elongate body includes an upper body portion pivotably coupled to a lower body portion via a hinge. The elongate body is configurable between a compact configuration in which the upper body portion is positioned alongside the lower body portion in substantially parallel arrangement, and an extended configuration in which the upper body portion is positioned substantially in-line with the lower body portion. Optionally, the hinge includes a lock element configured to selectively secure the elongate body in the extended configuration.
In another form of the present invention, a climbing support includes an elongate body with an upper body portion that is pivotably coupled to a lower body portion via a hinge, a step member that extends outwardly from the elongate body, and a standoff member that is coupled to the elongate body. The standoff member is configured to engage the tree or pole and to maintain a space between the elongate body and the tree or pole. The elongate body is configurable between a compact configuration in which the upper body portion is positioned adjacent the lower body portion, and an extended configuration in which the upper body portion is positioned substantially in-line with the lower body portion.
Thus, the climbing support of the present invention provides a strong, secure, and stable climbing support for use in scaling trees, poles, or the like, but which may be quickly and easily reconfigured to a self-contained and compact stowed configuration that is readily transported in a vehicle or by a person.
These and other objects, advantages, purposes, and features of the invention will become more apparent upon review of the following specification in conjunction with the drawings.
Referring now to the drawings and the illustrative embodiments depicted therein, a climbing support assembly 100, which may also be referred to as a “climbing stick,” includes a main frame member in the form of an elongate body 102, a plurality of steps or step members 104, a retractor 106, and a cable, cord, strap, or other flexible securing member 108 for selectively securing climbing support assembly 100 to a tree or pole 110 or the like, including substantially any vertical or generally vertical object or surface, such as shown in
In the illustrated embodiment, climbing support assembly 100 includes an upper climbing support subassembly 112 and a lower climbing support subassembly 114 that can be coupled together in series at their respective elongate bodies 102, such as shown in
Similar to the standoffs 116, the steps 104 are pivotably coupled to the elongate body 102 between an outwardly-extending position for use as a hand-hold or foot support (
Retractor 106 includes a spool 118 (
Retractor 106 includes a spindle 128 that extends through spool 118 and rotates with the spool, relative to casing 120 and elongate body 102, and includes a tool-engaging head portion 130 (
Flexible securing member 108 includes a distal end portion 108a having a ball-end 134 for engaging an attachment element in the form of a keyhole slot 136 that is formed or established in elongate body 102, such as shown in
The upper climbing support subassembly 112 includes a lower engaging member in the form of a post 138 extending downwardly from a lower end of the elongate body 102 (
In order to provide additional compactness for climbing support assembly 100 when in the stowage or transport configuration, the elongate body 102 of each climbing support subassembly 112, 114 includes an upper body portion 102a pivotably coupled to a lower body portion 102b via a hinge 142 (
Hinge 142 includes an upper bracket 139 at an upper end of lower body portion 102b, and a lower bracket 141 at a lower end of upper body portion 102a, such as shown in
In the illustrated embodiment, lower climbing support subassembly 114 includes three standoffs 116, one of which is located at the upper end portion of the elongate body 102, and another of which is located at the lower end portion of the elongate body 102 (
It is further envisioned that another climbing support assembly may include an alternative retractor that is at least partially integrated into the elongate body, and which does not require the use of tools for extending an retracting a flexible elongate securing member therefrom. For example, and with reference to
As best shown in
A rotatable and selectively translatable tensioning pulley 228 is mounted between internal divider wall 218 and intermediate ledges 224, and has a spaced flange 230 that is received between front walls 220 and intermediate ledges 224 (
A non-translatable stationary (but rotatable) pulley 236 is coupled to the elongate body 202 at internal divider wall 218, and is spaced above tensioning pulley 228. As will be described in more detail below, flexible securing member 208 is partially wrapped around stationary pulley 236 where the securing member exits elongate body 202, such as shown in
With the fixed end of flexible securing member 208 attached to anchor 238, a middle portion of the securing member is routed downwardly and then wrapped ½ turn around tensioning pulley 228, after which the securing member 208 is routed upwardly until it reaches stationary pulley 236, where it completes a ¼ turn and exits out the side of elongate body 202 through a hole provided for that purpose (
When tensioning pulley 228 is moved downwardly or away from stationary pulley 236, the increased distance between the pulleys 228, 236 draws additional length of flexible securing member 208 into elongate body 202. Because of the pulleys' multiplying effect, a given distance of movement of tensioning pulley 228 results in double that length of flexible securing member 208 being drawn into the elongate body 202, such as for drawing in slack when securing the climbing support assembly 200 to a tree. Conversely, moving tensioning pulley 228 upwardly or toward stationary pulley 236 allows the distal end of the flexible securing member 208 to be drawn out from the elongate body 202, such as for adding slack to the flexible securing member 208 when initially wrapping the securing member around the tree, or when loosening the securing member to remove the climbing support assembly 200 from the tree.
Tensioning pulley 228 is moved by grasping knob 234 of pulley shaft 232 and pulling outwardly to disengage the inboard tip portion of the pulley shaft 232 from one of the bores 227 formed in the internal divider wall 218, against the biasing force of spring 235. The user then slides the pulley shaft 232 toward or away from (e.g., upwardly or downwardly) stationary pulley 236 to either slacken the flexible securing member 208, or to take up slack in the securing member, respectively. Once the desired slack or tension is achieved, the user may release the knob 234 so that the inboard tip portion of the pulley shaft 232 engages the closest bore 227 in internal divider wall 218. The user may urge pulley shaft 232 slightly upward or downward as necessary to achieve proper alignment of the pulley shaft 232 with a bore 227. Accordingly, the exposed length or tension of flexible securing member 208 may be readily adjusted by a user with a single hand, including a gloved hand, so that the other hand can be used for stabilizing the user as needed.
The climbing support assemblies described above may be made primarily from steel or aluminum alloy or the like. For example, sheet steel or aluminum may be cut and formed (e.g., bent, welded, etc) to the desired shapes, and optionally painted, powder-coated, or epoxy-coated as a final finish, which could optionally be a camouflage pattern, for example. However, it will be appreciated that numerous other sufficiently strong and corrosion-resistant materials may be suitable, such as high-strength composite materials or the like.
Accordingly, the present invention provides climbing support assemblies that can generally be installed by a single user along a tree, pole, or the like, to facilitate reaching a substantial distance up above the ground. The climbing support assemblies can be configured in a compact stowage or transport configuration so that several assemblies may be carried at once by a single user, and include retractors for convenient and non-tangled stowage of securing cables, straps, or the like when the assemblies are not in use. Once the climbing support assembly is fully secured, the steps may be used as hand-holds and/or foot-holds as a climber scales a tree or other surface to which the climbing apparatus is attached. A standoff increases the space between the steps and the tree, and cooperates with the flexible securing member to support and stabilize the climbing support assembly along a tree or pole. The standoff and the steps may be repositionable between use configurations and more compact storage or transport configurations, and the elongate body or main frame member of the assembly may be collapsible to reduce its overall length for storage or transport.
Changes and modifications in the specifically-described embodiments can be carried out without departing from the principles of the present invention which is intended to be limited only by the scope of the appended claims, as interpreted according to the principles of patent law including the doctrine of equivalents.
The present application claims the priority benefit of U.S. provisional application, Ser. No. 61/675,635, filed Jul. 25, 2012, which is hereby incorporated herein by reference in its entirety.
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Exhibit A includes photos of various “climbing sticks,” at least three of which (“Ameristep”, “Muddy Outdoors,” and “Gorilla”) are believed to have been on sale more than one year prior to the filing date of this application. |
Commonly-owned U.S. Appl. No. 13/275,408, filed Oct. 18, 2011. |
Number | Date | Country | |
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20140027204 A1 | Jan 2014 | US |
Number | Date | Country | |
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61675635 | Jul 2012 | US |