Patent Application
20060075660
This invention relates generally to tightening arrangements for articles of footwear, and more particularly to lacing systems for boots, including snowboard boots.
Boots conventionally comprise a lace threaded back and forth through the medial and lateral sides of the boot. Typically, the lace has two free ends protruding from the top portion of the boot, which a wearer can pull to tighten the boot around his or her foot and leg.
The same is true of many snowboard boots, particularly snowboard boots of the “soft” variety. Soft boots, as their name suggests, typically are comprised of softer materials (e.g., leather, fabric, and/or thin plastic components) that are more flexible than the relatively rigid, typically molded plastic shell of a hard boot. Soft boots are generally more comfortable and easier to walk in than hard boots, and are often favored by riders who engage in recreational, “freestyle” or trick-oriented snowboarding. Tightening a soft boot typically involves pulling on both ends of the lace and tying the lace in a knot or bow.
Frequently, the lace is sufficiently long, and threaded back and forth sufficiently many times, that tightening the lace merely by pulling on its free ends can be difficult due to friction between the lace and the portions of the boot (e.g., eyelets or lace guides) through which the lace is guided. Accordingly, a wearer often must tighten the lace progressively from the bottom to the top of the boot, culminating with the wearer pulling on the free ends of the lace. Despite these efforts, the wearer may still experience an undesirable tightness and discomfort in part of the boot. To address this concern, boots having “zone lacing” have been developed in which separate areas or “zones” of the boot may be independently tightened so that a wearer can adjust the level of tightness desired in a particular area. However, such lacing systems lack a convenient arrangement for tightening the laces.
Also, prior lacing systems, whether incorporating “zone lacing” or not, typically include laces having long free ends to permit grasping, pulling and tying the lace. The free ends can become untied and hang loose from the boot. Lacing systems with short lace ends would be beneficial; however, striking a balance between a sufficiently short lace and a one having enough length to provide slack facilitating removal of the boot is challenging.
One illustrative embodiment is directed to a boot having a boot body with a lower region adapted to cover a foot of a wearer and an upper region adapted to cover at least a portion of a shin of the wearer. The boot also includes a first lacing zone comprising a first lace adapted to tighten a first region of the boot and a second lacing zone comprising a second lace adapted to tighten a second region of the boot. The first and second laces have portions that are disposed at the upper region. Both the first lace and the second lace are simultaneously securable at the upper region of the boot.
Another illustrative embodiment is directed to s boot having a boot body with a lower region adapted to cover a foot of a wearer, an upper region adapted to cover at least a portion of a shin of the wearer, and a rear side that faces backward when the boot is worn by the wearer. The boot also includes a first lacing zone comprising a first lace adapted to tighten a first region of the boot and a second lacing zone comprising a second lace adapted to tighten a second region of the boot, The first and second laces have portions that are disposed at the upper region. Both the first lace and the second lace are simultaneously securable at a location forward of the rear side to completely secure the boot body to the wearer.
A further illustrative embodiment is directed to a boot having a boot body, a plurality of lace guides coupled to the boot body, and at least one lace guided by the lace guides. At least one of the lace guides includes a lace hook and the at least one lace is adapted to be dislodged from the hook. The boot further includes at least one lace lock engageable with the at least one lace so that the boot may be tightened to the wearer, and a release strap coupled to the at least one lace. The release strap is graspable to remove the at least one lace from the hook to so as to create slack in the at least one lace.
Another illustrative embodiment is directed to a boot having a boot body, a plurality of lace guides coupled to the boot body, and at least one lace guided by the lace guides. At least one of the lace guides includes a lace hook and the at least one lace is adapted to be dislodged from the hook. The boot further includes at least one lace lock engageable with the at least one lace so that the boot may be tightened to the wearer. An amount of slack lace created upon removing the at least one lace from the hook is greater than an amount of slack lace that would otherwise be created upon disengaging the at least one lace from the at least one lace lock.
Yet another illustrative embodiment is directed to a boot comprising a boot body, a plurality of lace guides coupled to the boot body, and at least one lace guided by the lace guides. At least one of the lace guides includes a lace hook and the at least one lace is adapted to be dislodged from the hook. The boot further includes at least one lace lock engageable with the at least one lace so that the boot may be tightened to a wearer. The at least one lace is adapted to have a free-end portion extending from the at least one lace lock after the at least one lace has been tightened. An amount of slack lace provided by the free-end portion of the at least one lace upon disengaging the at least one lace from the at least one lock is insufficient to permit easy removal of the boot from the wearer and an amount of slack lace created upon removing the at least one lace from the lace hook aids in permitting easy removal of the boot from the wearer.
A further illustrative embodiment is directed to a method of using a boot. The boot has a boot body, a plurality of lace guides coupled to the boot body, at least one lace guided by the lace guides, and at least one lace lock cooperating with the at least one lace and engaging the at least one lace so that the at least one lace is holdable toward a tightening direction to tighten the boot body about the wearer. The at least one lace is adapted to have a free-end portion extending from the at least one lace lock after the at least one lace has been tightened. An amount of slack lace provided by the free-end portion of the at least one lace upon disengaging the at least one lace from the at least one lock may be insufficient to permit easy removal of the boot from the wearer. The method includes removing the at least one lace from at least one lace guide to create a length of slack in the at least one lace to aid in permitting removal of the foot from the boot, and drawing the lace through at least one of the other lace guides in a loosening direction.
Yet another illustrative embodiment is directed to a soft snowboard boot. The boot includes a boot body formed of flexible material, with the boot body having a lower region adapted to cover a foot of a rider and an upper region adapted to cover at least a portion of a shin of the rider. A plurality of lace guides is mounted to the boot body, and at least one of the lace guides comprising a lace hook. The boot also includes a first lacing zone having a first lace and a first lace lock mounted to the boot body in the upper region. The first lace is guided by the lace guides and cooperates with the lower region. The first lace is adapted to extend through and engage with the first lace lock to tighten the lower region. The first lace has a portion that extends from the lower region to the upper region so as to be engageable with the first lace lock. The boot further includes a second lacing zone having a second lace and a second lace lock mounted to the boot body in the upper region. The second lace is guided by the lace guides and the lace hook and cooperates with the upper region. The second lace is adapted to extend through and engage with the second lace lock to tighten the upper region. Both the first and second laces may be simultaneously secured by the first and second lace locks, respectively, in the upper region of the boot body forward of a rear side of the boot body. A release strap is coupled to the second lace and is graspable to remove the second lace from the hook so as to create slack in the second lace.
Various embodiments of the present invention provide certain advantages. Not all embodiments of the invention share the same advantages and those that do may not share them under all circumstances.
Further features and advantages of the present invention, as well as the structure of various embodiments of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
Various embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:
The boot of the present invention includes arrangement(s) and/or technique(s) for making the process of tightening and loosening the laces of a boot more convenient for the wearer.
In one aspect, the boot is provided with at least two independent lacing zones, the tensions of which are separately adjustable by the wearer, thereby increasing comfort, flexibility and/or performance for the wearer. Thus, the wearer can choose (for example) for part of the boot to fit more tightly, and for another part of the boot to fit less tightly.
To provide the wearer of the boot of the present invention with the familiar sensation that accompanies tightening conventionally laced boots, in one embodiment, the zones may be tightened by pulling on two lace ends, each of which emerges from a lacing zone at about the same location typical of a conventionally laced boot, i.e., at the upper and/or forward region of the boot. In one embodiment, each zone is tightened with a separate lace. The sensation of tightening the boot by pulling on, and securing, two laces at the upper and/or forward region of the boot is similar to that accompanying the use of a conventional boot lace.
This arrangement allows the wearer to simultaneously tighten each zone, providing the wearer with a “feel” as though he or she is tightening a conventional boot having a single lacing zone, while still obtaining the benefits of tightening a particular zone to a desired tension. In one embodiment, the laces may be simultaneously, yet independently, secured. Although in this aspect, the lacing arrangement allows the wearer to simultaneously secure the laces, the wearer need not do so. Rather, the system of this embodiment merely provides the wearer with the option to simultaneously secure the laces of each zone. In an alternative embodiment, for example, the wearer may first secure the lower lace, after which the wearer secures the upper lace.
Another aspect of the invention relates to creating slack in a lace to facilitate loosening and removing the boot. In this aspect, a balance is struck between employing a relatively short lace end and providing sufficient lace slack to facilitate removing the boot. In one embodiment, the boot includes a lace lock for securing the end of the lace, and one or more lace guides formed as open hooks (also referred to herein as “speed hooks”), provided on the boot. The wearer can unhook the lace from the speed hook to create slack in the lace without a corresponding distance of lace traveling through the lace lock. In one embodiment, a pull tab or release strap, graspable by the wearer, is coupled to the lace to facilitate unhooking the lace from the speed hook. In this manner, lace slack may be created quickly and easily to facilitate removal of the boot. An additional benefit may be minimizing wear of the lace resulting from travel of the lace through the lace lock.
The above aspects of the invention may be employed in any suitable combination as the present invention is not limited in this respect. Also, any or all of the above aspects may be employed in a snowboard boot; however, the present invention is not limited in this respect, as aspects of the invention may be used on any type of footwear, including boots and snowboard boots. Various aspects and embodiments of the invention will now be described in more detail with respect to the accompanying drawing figures. The invention is not, however, limited to the aspects and embodiments shown.
A boot 2 (which may be formed as a snowboard boot) in accordance with one embodiment of the present invention that incorporates the above-discussed aspects is illustrated in
The boot 2 shown in the figures is configured for the right foot of a wearer, and comprises medial side 10 and lateral side 12. (Herein, the term “lateral side” is used to refer to the side of a boot facing outward and away from the wearer, i.e., the left side of the left boot and the right side of the right boot, when worn by the wearer. The term “medial side” is used to refer to the side of a boot facing inward toward the wearer's other foot, i.e., the right side of the left boot and the left side of the right boot, when worn by the wearer.) Upper lace 14 and lower lace 16 are threaded through medial and lateral sides 10 and 12 of boot 2. Upper lace 14 and lower lace 16 can be used to tighten boot 2 (and, correspondingly, to reduce the width of tongue opening 18 between medial side 10 and lateral side 12).
In the embodiment shown in
As discussed above, the use of multiple lacing zones provides a wearer with the ability to separately tighten different parts of the boot to desired tension(s). In the example shown in
In one embodiment, lower lace 16 is anchored to the boot at position 24 toward the bottom of lower lacing zone 22 (e.g., in the toe-area of the boot), and is threaded through external lace guides 26, before entering internal lace guide tube or channel 32 disposed within the wall of medial side 10 of boot 2, through intake eyelet 34. Lower lace 16 extends through internal lace guide tube 32 and exits at an exit eyelet 36 (
For example, fewer or more lace guides may be provided for guiding each of the laces. The lace guides may be formed in any desired configuration. For example, they may comprise tubes to receive a lace, hooks, eyelets, posts, and any other configuration suitable to guide the lace through the lacing zone. While one such combination of internal and external lace guides in shown in
The invention also is not limited to any particular location for anchoring an end of a lace to the boot. For instance, instead of anchoring one end of upper lace 14 at the top of upper lacing zone 20, in another embodiment one end of upper lace 14 may be anchored at the bottom of upper lacing zone 20, or in any other appropriate location. The same holds true with respect to the anchoring of lower lace 16. Likewise, the lace locks 38 (
In the embodiment illustrated in
In operation, the wearer can pull on handles 66 and 42, which draws the laces in a tightening direction “A”, to tighten the upper and lower lacing zones 20 and 22 sequentially or simultaneously. When each lacing zone has reached a desired tightness, the wearer may lock the respective laces in their corresponding lace locks, though which the laces are threaded. As described above, this action permits the user to achieve the sensation of tightening a conventional boot by pulling up on two free ends of laces. In addition, the need to progressively tighten a single lace from the bottom to the top of the boot is obviated, as is the need to tie a knot or bow at the top of the boot. In short, the wearer can tighten and secure the laces of the boot with a single motion.
To hold the lace in place, a lace lock may be employed. One particular embodiment of a lace lock is illustrated in
The inner wall 100 and outer wall 102 of the lace lock each comprise a plurality of locking teeth 110, which cooperate to form the cleat as depicted in
As shown in
The lace lock is secured to boot 2 at its inner wall 100 with fasteners (not shown) passing through holes 116. The invention is not limited in this regard, however, as other mechanisms for securing the lace lock to the boot may be employed, such as adhesives or sewing.
It should be appreciated that the invention is not limited to a particular arrangement for securing the lace, as any suitable mechanism may be employed. For example, the lace lack may be configured as a spring-loaded barrel lock, a capstan, a cam lock, post, or any other suitable device or arrangement.
To further facilitate securing the lace once the lace has been tightened, the lace lock may be oriented in a position so that a wearer can tighten and secure the laces in a single motion. In one embodiment, after the wearer has tightened the laces to a desired tension, the wearer simply pulls the laces toward the back edge 108 of the lace lock, which causes then to be trapped within the “V”-shaped cleat formed by teeth 110. This may be accomplished by orienting the lace lock on the boot in a manner such that channel 104 in the lace lock is substantially parallel to the tongue opening 18 (as shown in
The handles may be formed in a manner to relieve pressure points on the hand of the wearer as he or she pulls on the handle. In one example, each handle 42, 66 includes a tube through which the lace is passed. A fabric material may be placed over the tube, or if no tube is employed, the fabric may be placed over the lace. Suitable padding may also be employed.
In one embodiment, it may be advantageous to designate for the wearer to which zone the lace belongs. Thus, as shown in
The handles 42 and 66 of laces 16 and 14 (as well as any excess lace after tightening) may be stowed to reduce excess lace that might otherwise hang off the boot and get in the wearer's way. In one embodiment, as shown in
It should be appreciated, however, that the invention is not limited in this regard, as pockets need not be provided (or, if provided, may be located elsewhere on the boot or in a different configuration).
In one embodiment, although not shown, a rotary closure device may be used in place of the lace lock. With such a device, the free ends of the laces may be threaded into the body of the device and wrapped around a spool as the spool is rotated to achieve the desired tension and the use of a pocket may not be necessary. Such closure devices are well known for use in other applications, such as for use with a cable tightening system to replace conventional laces in an athletic shoe, and examples of such rotary closure devices are described in U.S. Pat. Nos. 3,738,027; 3,808,644; 4,433,456; 4,616,524; 4,660,300; 4,748,726; 4,761,859; 4,787,124; 4,796,829; 4,841,649; 4,884,760; 4,961,544; 5,042,177; 5,065,481; 5,150,537; 5,152,038; 5,157,813; 5,325,613; 5,600,874; 5,606,778; 5,638,588; and 5,669,116; and European patent applications EP056,953 and EP264,712. It should be appreciated that the present invention is not limited to the use of any particular type of closure device, as any mechanism that is capable of taking up slack in the lace can be used in connection with the present invention.
In another embodiment, also not shown, a lace recoil device may be employed. The free end of the lace is anchored to a self-winding spool such that after the desired tension is applied to the lace, the recoil action of the spool would take up excess lace. Again, with such a device the use of a pocket may not be necessary. The recoil device may include a lock to hold the lace at a desired tension.
Returning to the embodiment shown in
In one embodiment, the radius of curvature “r” of the guide surface provides a gradual reversal of direction for the lace. Such a gradual reversal reduces kink points and reduces the chance that the lace will bind in the guide. In this manner, the efficiency with which the force applied to the lace is translated to the tightening tension on the lace is maximized. That is, drag or other losses are minimized. In one embodiment, the radius of curvature “r” is approximately ½ inch. Other suitable radii of curvature, or other suitable shapes for the lace guide, may be employed as the present invention is not limited in this respect.
The lace guides are made from a low-friction material, such as teflon, to reduce frictional drag on the laces. The invention is not limited in this regard, however, as the lace guides can be made from any appropriate material, such as metal or fabric.
As noted above, another aspect of the invention relates to creating slack in a lace to facilitate loosening and removing the boot. In this aspect, an open hook 54 (also referred to as “speed hook 54”) is provided on the boot body 3, the speed hook 54 being adapted to permit the lace to dislodge from the speed hook 54 when desired by the wearer. As depicted in
Further, as shown, the hook 54 is disposed between two lace guides 26 such that, upon dislodging the lace from the hook 54, the ends of lace on either side of the hook are still captured by the other lace guides. In this manner, upon re-tightening the boot, the wearer need only to re-engage the lace with the hook 54, rather than with several of the other lace guides 26. However, the present invention is not limited in this respect, and the lace hook 54 may be positioned in other suitable locations and/or additional lace hooks may be employed. In other embodiments, the lace may be removable from any one or more of the lace guides.
A pull tab 120 (also referred to as a “release strap”) is provided on the lace (in this case upper lace 14) and includes a graspable portion to facilitate movement of lace 14 onto and off of the speed hook 54. In one embodiment, the release strap is formed from a strip of material, for example, fabric, that is stitched onto the lace. The strap may be attached to the lace in a manner that allows it to slide along the lace. In one embodiment, a portion of the strip of material is folded over the lace and back onto itself to form a loop that surrounds the lace, and sewn closed. The invention is not limited in this regard, however, as the release strap may be formed using other techniques, or may be formed into other structures, such as a solid piece of material with a channel formed therein to receive the lace. Alternatively, absent such structures, the wearer may move the lace onto and off of the hook with a finger.
In this aspect, the wearer unhooks the lace 14 from the speed hook 54 (with or without release strap 120, as noted above), as shown in
By allowing the lace to become dislodged from the lace hook 54, the need for the lace to pass back through the lace lock is minimized. As shown in
In one embodiment, the amount of slack created in the lace 14 by unhooking the lace 14 from the speed hook 54 (“S1” and “S2”, as shown in
In one embodiment, the amount of lace “L” at the free-end of the lace 14 is approximately 3 inches. The amount of lace “S1” and “S2” together is approximately 9 inches. However, it should be appreciated that the present invention is not limited in this respect, as other suitable lengths may be employed.
The laces 14 and 16 can be implemented in any of numerous ways, and the present invention is not limited to any particular implementation. The laces 14 and 16 should be sufficiently strong to resist the substantial forces that can be encountered when snowboarding, and in this respect may require greater strength than the laces employed in conventional footwear such as athletic shoes. The laces 14 and 16 can be formed from a monofilament or a multistrand line. In accordance with one illustrative embodiment of the invention, the laces 14 and 16 are formed of a low-friction material capable of resisting a high tensile force without elongation to minimize frictional engagement between the laces 14 and 16 and the lace guides 26, and thereby facilitate even pressure distribution throughout the respective lacing zones 20 and 22. While not limited to any particular material or any particular form (i.e., woven, braided, monofilament, etc.), examples of materials that can be used for the laces 14 and 16 include various types of fabrics, plastics, metals, Kevlar and/or Spectra Cord.
The boot 2 may be configured as a soft boot employing soft, flexible materials such as leather, fabrics, plastics (e.g., non-rigid plastics) or other suitable natural or manmade materials. A liner (not shown) may also be employed and inserted into the interior region of the boot, however, the present invention is not limited in this respect. A tongue stiffener, whether removable or not, may be employed to stiffen an otherwise flexible tongue. An example of a tongue stiffener may be found in commonly assigned U.S. Pat. No. 6,360,454, which is hereby incorporated herein by reference.
In the embodiments shown, the laces 14 and 16 follow a meandering path and do not cross over themselves, unlike many conventional laces that cross over themselves while “criss-crossing” the tongue opening 18. The invention is not limited in this regard, however, and other lacing patters may be used as will be apparent to one of ordinary skill in the art. For example, a lacing pattern in which the laces cross over themselves may be employed.
It should be understood that the foregoing description of the invention is intended merely to be illustrative thereof and that other embodiments, modifications, and equivalents of the invention are within the scope of the invention recited in the claims appended hereto. Further, although each embodiment described above includes certain features, the invention is not limited in this respect. Thus, one or more of the above-described or other features of the boot or methods of use, may be employed singularly or in any suitable combination, as the present invention is not limited to a specific embodiment.
This application claims the benefit under 35 U.S.C. § 120 of U.S. application Ser. No. 10/732,834, filed on Dec. 10, 2003, which is herein incorporated by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 10732834 | Dec 2003 | US |
| Child | 11286928 | Nov 2005 | US |
