This invention relates generally to footwear and, more specifically, to closing and securing of footwear.
Many forms of athletic footwear have improved over the past several decades. Only a few decades ago, for example, state of the art basketball shoes had flat rubber bottoms and a flat, canvas high-topped upper. However, as the benefits of exercise are more widely appreciated, the athletic footwear industry has become a multi-billion dollar per year industry. For example, basketball shoes now routinely cost more than $100 per pair. To compete in this industry, manufacturers continually develop improved designs. Some of these designs are directed to providing a better fit to provide additional comfort and support, or to provide a performance advantage. One design, for example, included air bladders fitted within the upper of the shoe. The air bladders were coupled with a small, manually-actuated pump allowing a wearer to selectively inflate the air bladders to attain a desired fit.
By contrast, design of skate boots has changed little over the course of the last century even though figure skating, speed skating, and ice hockey, have become increasingly popular. As hockey becomes more popular, better, faster, stronger and larger athletes are playing hockey, and these athletes seek increasingly better equipment to attain every possible advantage in competition. As a result, more responsive and supportive skates are desired.
Skating tends to put tremendous stress on a skater's ankles, and ankle support is important to a skater. Conventionally, a skater typically can do one thing to maximize the support available from his or her skates: tighten the laces. Tightening the laces deforms the upper of the skate against the wearer's foot and ankle, securing the upper to the foot and ankle of the wearer to provide support.
The time-tested technique of tightening the laces leaves a number of shortcomings. First, laces stretch or can become loosened, and the support gained from tightening the laces is lost. Second, tightening the laces can be an arduous process. Pulling on the laces loop-by-loop as is required to tightly secure the laces is hard on the fingers of the skater, if the skater can even fit his or her fingers into the loops as desired to effect a desired tightness. Tightening the laces by hand can be so hard on a skater's fingers that skate shops market lace tighteners having a hook supported by a handle that a skater can use to pull on the laces to tighten them. Third, even if a user can tighten the laces to a desired degree of tightness, the tightness of the laces tends to be uniform across the upper of the skate. A skater may desire to tighten the laces particularly at the base of the ankle to keep his or her heel secured in a heel portion of the skate to maintain control of the skate. Unfortunately, to achieve this tension, the laces may be undesirably tight across the skater's or at the top of the upper, uncomfortably cutting into the ankle of the skater.
Thus, there are unmet needs in the art for securing a skate to an ankle of the wearer to provide both comfort and responsiveness.
Embodiments of the present invention provide apparatuses, a system, and a method for a footwear item to apply pressure to a foot and ankle of a wearer to secure the wearer's heel in place in the footwear. The securing apparatus works with a conventional lace or a separate closure line to apply a securing force on a front of the wearer's foot and ankle to direct the heel in place. In one embodiment of the invention, ends of a strap or similar force member receives a lace or other closure line on opposing sides of a closure securing an opening in an upper of the footwear. The strap extends away from the closure and winds around a pivot member and back across the closure. The pivot members act as pulleys such that tightening of the lace or closure line pulls the strap around the pivot members, and applies an enhanced securing force against the closure. The securing force applied against the closure helps to secure the foot and ankle of the wearer in place. As a result, the footwear is more supportive and responsive to the wearer's movements.
More particularly, embodiments of the invention provide apparatuses and methods for securing a foot of a wearer in a footwear item and a footwear item using a securing apparatus. Pivot members are disposed on opposing sides of a closure configured to secure an opening in an upper of the footwear item, the pivot members being positioned on a surface of the footwear item between the opposing sides of the closure and a heel section of the footwear item. A securing including end sections and a force member is provided. Each of the end sections includes a fastener-receiving opening configured for a fastener to pass therethrough. The force member extends from the end sections and curves around the pivot members to engage the closure. Tension applied to the fastener applies force to the end sections resulting in tension in the force member causing a securing force being applied against the closure.
In accordance with further aspects of the present invention, each of the pivot members includes at least one pivot slot formed in the surface of the footwear item. In one embodiment, each of the pivot members includes a single pivot slot in the surface of the footwear item, such that the force member extends from the end sections, enters beneath the surface of the footwear item, and curves around the single pivot slot toward the closure. In another embodiment of the invention, each of the pivot members includes a pair of pivot slots in the surface of the footwear item, such that the force member extends from the end sections, enters beneath the surface of the footwear item, and curves toward the closure at a first pivot slot, and the force member extends outside the surface of the footwear item and continues extending toward the closure at a second pivot slot. In still another embodiment of the invention, each of the pivot members includes a ring mounted on the outer surface of the footwear item, such that the force member extends from the end sections and curves around the ring toward the closure. In one embodiment, each of the pivot members is further secured to a securing harness, the securing harness including a heel strap extending between the rings beneath the heel and an Achilles strap extending between the rings around an Achilles region.
In accordance with other aspects of the present invention, the force member includes a strap and the fastener-receiving openings are formed by folding back ends of the strap and attaching the ends of the strap to a body of the strap. Alternatively, each of the end sections includes a loop coupled to ends of the force member.
In accordance with still further aspects of the present invention, embodiments of the present invention further comprise a retaining mechanism configured to maintain the force member at a predetermined position relative to the closure. In one form of the invention, the retaining mechanism removably secures the force member at the predetermined position. The retaining mechanism may include a positioner disposed on the force member and a plurality of limiters disposed on opposing sides of the predetermined position and configured to engage the positioner to secure the force member at the predetermined position. The positioner may include a widened element disposed on the force member, and each of the limiters includes a guide having an inner width narrower than an outer width of the widened element. Thus, once the widened element is installed between the guides, the widened element can be removed from between the guides only with application of a removal force sufficient to deform at least one of the widened element or at least one of the guides. The widened element is installable between the guides by deforming at least one of the widened element and one of the guides.
Further in accordance with aspects of the present invention, embodiments of the present invention include a force distribution member configured to receive the securing force applied on the closure by the force member and distribute the securing force over an area wider than a width of the force member. The distribution panel may be integrated within the closure or integrated with the force member. The force distribution member also may include a distribution panel disposed between the force member and an interior surface of the closure, with the distribution panel having a panel width wider than the width of the force member. The distribution panel includes at least a semi-rigid material. The distribution panel member may include at least one of an impact shield, a flex limiter, and an energy return panel substantially covering the closure.
In accordance with other aspects of the present invention, the fastener is a first closure line configured to secure the closure on the footwear item, where the fastener includes one of a lace or a cable. Alternatively, the fastener is a second closure line separate from the first closure line. The fastener may include a securable strap, such as a strap member with a buckle.
The preferred and alternative embodiments of the present invention are described in detail below with reference to the following drawings.
By way of overview, embodiments of the invention provide apparatuses and methods for securing a foot of a wearer in a footwear item and a footwear system using a securing apparatus. Pivot members are disposed on opposing sides of a closure configured to secure an opening in an upper of the footwear item, the pivot members being positioned on a surface of the footwear item between the opposing sides of the closure and a heel section of the footwear item. A securing including end sections and a force member is provided. Each of the end sections includes a fastener-receiving opening configured for a fastener to pass therethrough. The force member extends from the end sections and curves around the pivot members to engage the closure. Tension applied to the fastener applies force to the end sections resulting in tension in the force member causing a securing force being applied against the closure.
The skate 100 includes an upper 102 having an opening 104 for receiving a foot and ankle of a wearer. The opening 104 includes a closure 106 configured to close the opening 104. The closure 106 is a tongue, although the closure could be a flap extending over or beneath the upper 102, or take another form. A lacing system 108 receives a lace (not shown) that conventionally criss-crosses over the closure 106 once the wearer has donned the skate. Once the wearer laces the skate 100, pressure is applied across the upper 102 and the closure 106 of the skate 100 to secure the wearer's foot into the skate 100. The closure 106, secured by the lace, applies some pressure to the foot of the wearer to secure a heel of the wearer's foot into a heel portion 110 of the skate
Generally, the securing mechanism 150 includes a force member 152, such as a strap, which extends across the closure 106. The force member 152 extends through and wraps around a plurality of pivot members 154. After passing through the pivot members 154, the force member ends in a pair of fastener-receiving openings 156 which engage a fastener such as the lace (not shown) or another fastener to activate the securing mechanism 150, as will be further described below. The force member 152 is held in place by a retaining mechanism 158, which also will be further described below.
The pivot members 154 can include a number of forms. In one embodiment of the invention, the force member 152 may extend from the closure 106 beneath the upper 102 and extend through and pivot around a single pivot slot in the upper 102. Alternatively, the force member 152 may extend from the closure 106 across an outer surface of the upper 102, slip beneath a surface of the upper 102 through a first pivot slot in the upper, then extend through and pivot around a second pivot slot in the upper 102. Further alternatively, and as shown in
The fastener engaging ends 156 of the force member 152 may be formed by joining end pieces, such as rings, to the force member 152. Alternatively, and as shown in
It will be appreciated that the retaining mechanism 158 shown in
In one embodiment, each of the pivot members 154 is further secured to a securing harness 157. The securing harness 157 includes a heel strap 161 extending between the pivot members 154 beneath the heel. The securing harness 157 also includes an Achilles strap 163 extending between the pivot members 154 around an Achilles region. The securing harness acts to further secure the wearer's foot and ankle into the skate by distributing the force imparted by the securing mechanism 150 such that the wearer's leg is securely drawn into the heel section 110.
Because the pivot members 154 act as pulleys, tension applied to the force member 152 is enhanced in the way that pulleys enhance tension applied to a chain in a block-and-tackle system. Accordingly, tension applied to a fastener such as a lace and then applied to the force member may multiply the tension by as much as a factor of two. Thus, the securing mechanism 150 advantageously applies a strong securing force to the foot of the wearer.
It will be appreciated that the fastener-receiving ends 156 need not engage a lace, cable, or other fastener used to secure the closure 106 on the footwear. A separate fastener can be used to engage the fastener-receiving ends 156 of the securing mechanism 150 to allow the force member 152 to apply a desired securing force independent of what other force may be generated or applied by the footwear fastener. The separate, second fastener suitably includes a second lace or cinching line to engage the fastener-receiving ends 156. Similarly, a strap and buckle system suitably is used.
Embodiments of the present invention include the securing apparatus and footwear incorporating the securing apparatus. Embodiments of the present invention also include a method of redirecting fastener tension to secure footwear on a leg of a user by using a force-bearing member to engage a fastener and apply pressure against a closure of a footwear item as previously described in connection with
While the preferred embodiment of the invention has been illustrated and described, as noted above, many changes can be made without departing from the spirit and scope of the invention. Accordingly, the scope of the invention is not limited by the disclosure of the preferred embodiment. Instead, the invention should be determined entirely by reference to the claims that follow.
This invention claims priority from U.S. Provisional Application No. 60/443,449, filed Jan. 28, 2003.
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Number | Date | Country | |
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