The present invention relates to a biomechanical binding for use with a recreational device, and in particular to a snowboard binding having an adjustable suspension interface.
Snowboarding has become increasingly popular in recent years and generally involves descending a slope by standing sideways on a lightweight board that is attached to the user's feet. Unlike skiing, which requires the user to shift their weight from one ski to the other, snowboarders shift their weight from heels (heelside) to toes as well as from one end of the board to the other. Shifting weight toward the nose (front) of the board will allow the rider to head downhill, while shifting weight toward the tail (back) of the board will allow the rider to head uphill or slow down. Quick turns can be achieved by pushing the back foot forward or pulling it backward to change direction, and stops can be achieved by pushing heels or toes down hard to dig the edge of the snowboard into the snow.
In order to maneuver the board, the rider's foot must be firmly attached to the board. Currently, snowboarding equipment requires a board, typically around five feet long, bindings attached to the board, and boots. The bindings, which are used to hold the boots to the board, are available in a variety of configurations, including metal fasteners, plastic straps, and step-in versions. Some bindings have high backs behind the heels to provide support and added leverage on turns. Regardless of the type of binding, the bindings typically remain within a fixed orientation during use. Thus, while the snowboard itself can be designed to provide some flexibility, most of the mechanical stress caused by use is placed on the rider. Such stress on the rider's legs can reduce performance, and can cause shearing between the boot and the rider's foot internal to the boot. Moreover, the lack of impact absorption can increase edge chatter and reducer rider control.
Accordingly, there is a need for an improved binding system that reduces stress on the rider's legs, while improving the rider's ability to control the board.
In general, the present invention provides a binding system for mounting a rider's foot to a recreational riding device to provide an adjustable suspension interface between the rider's foot and the riding device. In one embodiment, the binding system includes a base plate having an upper surface adapted to support the rider's foot, and an opposed, lower surface adapted to be oriented adjacent to and spaced apart from the recreational riding device. A support base is adapted to mate to the recreational riding device and defines a central axis, and a connecting element mates the base plate to the support base, and is adapted to allow pivotal movement, of the base plate about the central axis with respect to the support base. The system can also include at least one compression member adapted to mate to at least one of the lower surface of the base plate and a recreational riding device. The compression member(s) are effective to compress between the base plate and the recreational riding device in response to a force applied to at least one of the base plate and the recreational riding device.
The connecting element can have a variety of configurations. In one embodiment, the connecting element is a support ring hingedly connected to the base plate to allow pivotal movement of the base plate thereabout. The support ring can be attached to the riding device via the support base. At an interface between the support ring and the base plate, the support ring can include at least one slot formed therein for receiving at least one corresponding pin member formed on the base plate. The slot(s) and pin member(s) are effective to provide a hinged connection between the base plate and the support ring. The system can also include cooperating surface features formed on an inner surface of the support ring and an outer surface of the support base to prevent rotational movement of the support ring with respect to the support base. The surface features can be, by way of non-limiting example, ridges, grooves, teeth, or combinations thereof.
In another embodiment, a binding support system is provided for mounting a rider's foot to a recreational riding device. The system includes a base plate having a first surface adjacent to and spaced apart from a surface of a recreational riding device, and a second surface adapted to support the rider's foot. At least one connecting element is adapted to connect the base plate to the recreational riding device such that the base plate is capable of pivotal movement about a fixed central axis. The system can also optionally include a support base having a first end adapted to mount upon the recreational riding device, and a second end adapted to be oriented adjacent the rider's foot. The support base defines the fixed central axis, which extends between the first and second ends of the support base. In use, the base plate includes a central opening adapted to surround the support base and the connecting element connects the base plate to the support base. The system can also optionally include at least one compression member adapted to compress between the base plate and the recreational riding device in response to a force applied to at least one of the base plate and the recreational riding device. The at least one compression member can be mated to at least one of the base plate and the recreational riding device.
In yet another embodiment, the connecting element can comprise a support ring having a first portion hingedly connected to the base plate to allow pivotal movement of the base plate, and a second portion mated to the support base. A ball-and-socket interface can be provided between the base plate and the support ring such that a peripheral portion of the support ring includes a convex protrusion that is matable within an inner, concave wall of the base plate that defines a central aperture of the base plate. The ball-and-socket interface is effective to allow pivotal movement of the base plate with respect to the support ring.
The present invention also provides a recreational riding device having an elongate board member with upper and lower surfaces, and at least one binding support component including a base plate having an upper surface configured to support a rider's foot, and a lower surface configured to be oriented adjacent to and spaced a distance apart from the elongate board member. A support base is removably mated to the elongate board member, and a connecting element is adapted to connect the base plate to the support base and to allow pivotal movement of the base plate about the central axis with respect to the elongate board. The device can also include at least one compression member adapted to compress between the base plate and the recreational riding device in response to a force applied to at least one of the base plate and the recreational riding device. The compression member is preferably mated to at least one of the base plate and the recreational riding device. In an exemplary embodiment, first, second, third, and fourth compression members are mated to a lower surface of the base plate. Each of the first, second, third, and fourth compression members can be spaced equidistantly from one another and from the central axis of the support base, or they can be spaced in any other desired arranged.
The invention will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
The present invention provides a binding system that is effective for use on a recreational device, such as a snowboard, and that is adapted to mate to, or that includes, a boot or other footwear worn by the user. In general, the binding system includes a base plate for supporting a rider's foot, and a connecting element for mating the base plate to an elongate board, e.g., a snowboard. The connecting element is effective to mate the base plate to a snowboard about a fixed central axis, yet to allow pivotal movement of the base plate about the central axis with respect to the snowboard thereby providing an adjustable suspension interface between the rider's foot and the snowboard. The binding system can also include at least one compression member mated to the base plate and/or to a snowboard. The compression member(s) are effective to compress between the base plate and the snowboard in response to a force applied to at least one of the base plate and the snowboard. The binding system is particularly advantageous in that the suspension interface between the base plate and the snowboard provides enhanced biomechanical operation and increasing mobility, and the compression members absorb chatter and shock. Moreover, there is no relative motion between the base plate and the boot since the system preferably pivots about a fixed central axis, so the rider's ability to control the snowboard is not adversely affected.
While the binding system 10 is described for use in connection with a snowboard 11, a person skilled in the art will appreciate that the binding system 10 can be used with a variety of recreational devices. Moreover, while a binding system 10 is described, a person skilled in the art will appreciate that the functionality or certain components of the binding system 10 can be built directly into a recreational riding device.
The base plate 12 is further adapted to mate to a snowboard 11 in a manner in which the base plate 12 is preferably non-rotatable, yet is pivotally movable about a central axis A. The central axis A can be positioned at a variety of locations, but is preferably positioned at a substantial midpoint of a rider's foot. In order to allow such movement, the base plate 12 is configured to couple to a connecting element 16 that is effective to position the base plate 12 at a distance apart from the upper surface of the snowboard 11, and that is effective to allow the desired pivotal movement of the base plate 12. As shown in
While a variety of techniques can be used to pivotally mate the base plate 12 to the snowboard 11,
The support ring 16 can have a variety of configurations, but is preferably a ring-shaped member having an outer surface 17 and an opposed inner surface 45 with a flange 44 formed around a bottom periphery thereof. The outer surface 17 is configured to interface with the inner surface 15 of the base plate 12, and thus each surface 15, 17 can optionally be complimentary to one another. By way of non-limiting example, the outer surface 17 of the support ring 16 can be convex (not shown) and the inner surface 15 of the base plate 12 can be concave (not shown) to facilitate pivotal movement of the base plate 12 about the support member 16.
While the base plate 12 is pivotally movable about the support ring 16, the system 10 preferably includes an anti-rotation mechanism that is effective to prevent rotational movement of the base plate 12. A variety of anti-rotational mechanisms can be used. In a preferred embodiment, either the base plate 12 or the support ring 16 can include one or more slots 20, 22 that are effective to receive corresponding pin members formed on the other one of the base plate 12 and the support ring 16. As shown in
Still referring to
The support ring clamp 14 can also be a cylindrical member that includes one or more openings 48 extending therethrough for receiving a fastening element, such as a screw 50. Each opening 48 can optionally be elongated and can include a scalloped perimeter defining multiple seating positions for the fasting element 50. A person skilled in the art will appreciate that a variety of clamp members can be used to mate the support ring 16 to a snowboard 11, and that the illustrated support ring clamp 14 is merely one embodiment.
In use, the support ring 16 is positioned within the central opening 18 of the base plate 12, and the base plate 12 and support ring 16 are then positioned at the desired angle on the snowboard 11. The support ring clamp 14 is then placed into the support ring 16 such that the openings 48 are in alignment with corresponding fastener-receiving members, e.g., screw bores, formed on the snowboard 11. The fastening elements, e.g., screws 50, are then inserted through the openings 48 and threaded into the corresponding screw bores (not shown) in the snowboard 11 to secure the support ring clamp 14 to the snowboard 11, and thereby position the support ring member 16 and base plate 12 at a desired orientation. The base plate 12 is then free to pivot with respect to the support ring 16, thereby enhancing the biomechanical operation of the snowboard 11. In particular, the pivotal motion reduces stress on the rider's feet and legs, and provides the rider with a more responsive, more stable, and easier to control snowboard 11.
As noted above, the binding system 10 can also include one or more compression members effective to dampen and restrict the overall pivotal motion of the base plate 12 and to receive compressive forces placed on the base plate 12 by the rider. The system 10 can include any number of compression members, and each compression member can mate to either the base plate 12 and/or the snowboard 11. Alternatively, the compression members can be incorporated into footwear to be worn by a user. Moreover, the compression members can be molded into the base plate 12 of binding 10, fit as an after-market attachment, housed within the snowboard 11, or they can be incorporated into a step-in system in the same fashion.
In an exemplary embodiment, as shown in
Each compression member 24, 26, 28, 30 can have a variety of shapes, sizes, and configurations, and can be formed from a variety of materials. By way of non-limiting example, each compression member can be in the form of a spring or other compressible material, such as an elastomeric polymer. Alternatively, one or more of the compression members 24, 26, 28, 30 can be formed from a rigid, non-compressible material to allow the user to selectively prevent pivotal motion in one or more directions. Each compression member can also optionally be adjustable and/or removable. By way of non-limiting example, the compression members can have an adjustable height to allow the user to adjust the desired angle of leg canting and stiffness or compressive properties as desired.
In another embodiment, the binding system 10 can include a locking feature to prevent pivotal movement in a particular direction. This is particularly advantageous in that it allows the user to adjust or prevent the pivoting motion as desired. While a variety of techniques can be used to control the pivotal motion of the base plate 12, in an exemplary embodiment the system 10 and/or the snowboard 11 include one or more locking members (not shown) that are adapted to be disposed between the base plate 12 and the snowboard 11 to prevent movement of the base plate 12 with respect to the snowboard 11 in the particular location of the locking member. The locking members can have a variety of configurations, but they are preferably similar to the compression members 24, 26, 28, 30, except that they are formed from a non-compressible material. Each locking member can be mated to the base plate 12, for example, by replacing one or more of the compression members 24, 26, 28, 30. Alternatively, the base plate 12, or the snowboard 11, can include an opening (not shown), similar to opening 39a shown in
One skilled in the art will appreciate further features and advantages of the invention based on the above-described embodiments. Accordingly, the invention is not to be limited by what has been particularly shown and described, except as indicated by the appended claims. All publications and references cited herein are expressly incorporated herein by reference in their entirety.
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Number | Date | Country | |
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20040262862 A1 | Dec 2004 | US |