Various types of footwear, for example, ski boots, include rigid shells surrounding a soft interior designed to comfortably grip a wearer's foot. In some designs, rigid shells are provided in a number of overlapping pieces allowing for expansion to enable removal of the footwear.
A sport boot is disclosed. In an example, the sport boot includes at least one terminator provided in a cavity formed in a base of the sport boot. A first cable has a first end terminating in a first receptacle of the at least one terminator. The first cable extends out of a first side of the base of the sport boot, around a foot portion of the sport boot and into a second side of the base of the sport boot. A second end of the first cable terminates in a second receptacle of the at least one terminator. A second cable has a first end terminating in a third receptacle of the at least one terminator. The second cable extends out of the heel area (rear) of the sport boot and is attached to a handle mounted on the rear (cuff) of the sport boot.
The sport boot may also have a second terminator provided in the cavity formed in the base of the sport boot. In this example, a third cable has a first end terminating in a first receptacle of the second terminator. The third cable extends out of the first side of the base of the sport boot, around the foot portion of the sport boot and into the second side of the base of the sport boot. A second end of the third cable terminates in a second receptacle of the second terminator. A fourth cable has a first end terminating in a third receptacle of the second terminator. The fourth cable extends out of a rear side of the base of the sport boot and is attached to the handle mounted on the rear (cuff) portion of the sport boot.
In an example, the terminator(s) are disc-shaped. The first and second cable each have enlarged ends configured for receipt within the receptacles of the at least one terminator. The receptacles are formed into a bottom surface of the terminator and accessed through a perimeter of the disc. The receptacles may have a radial portion having a first cross section and an interior portion having a second cross section, the second cross section larger than the first cross section to securely receive enlarged ends of the first and second cables. In an example use case, applying opposing forces to the terminator along a first orientation applies tension to the first and second cable, and wherein applying opposing forces to the terminator along a second orientation approximately perpendicular to the first orientation disengages the cable from the disc.
In an example, the sport boot may include a cable wear guide on a back side of the rear (cuff) portion of the sport boot under the handle. In this example, the second and fourth cable slide over the cable wear guide.
In an example, the second and fourth cables are attached to the handle via adjustable connectors to tighten and loosen the second and fourth cables at the handle.
In an example, the sport boot includes a power strap configured to tighten around a front upper ankle portion of the sport boot. A ridge may be provided and configured to reduce or prevent slipping of the power strap in an upward and downward direction on the front upper ankle portion of the sport boot.
In an example, the sport boot includes a boot board inside the sport boot. The boot board has first and second angled bottom surfaces, and a step down on a medial side encompassing a foam piece which aids the user's foot to articulate.
Before continuing, it is noted that as used herein, the terms “includes” and “including” mean, but is not limited to, “includes” or “including” and “includes at least” or “including at least.” The term “based on” means “based on” and “based at least in part on.”
It is noted that the fastening system 110 described herein enables use of a thinner boot wall to be provided (e.g., approximately in the range of 0.070 to 0.240 inches). than any prior ski boot may be provided, for example, to facilitate better conformance to an ankle of a wearer. The thinner boot wall may be enabled by cast polyurethane or thin-wall injection molding.
In an example, the fastening system 110 for the boot 100 is implemented as a radial cable closure. That is, the fastening system 110 may surround the entire forefoot 101, and tighten at the rear or heal 102 of the boot 100, thereby giving mechanical structure to the outer shell of the boot 100 and reducing or altogether preventing deformation of the outer shell, all while stabilizing the foot of a wearer (e.g., a skier) of the boot 100. The fastening system 110 is shown in an open or released configuration in
It is noted that the term “progressive flex” is used herein to describe a boot condition wherein, because the cuff of the boot is not fastened to the lower portion of the boot, the cables provide for a consistent forward flex. Other boots may come to an abrupt forward position. However, the sport boot described herein comes to a stop as if there is a compression spring throughout the range, gradually stopping the flex of the boot. This condition also holds true when the boot tends to go back into its normal position. Because the cuff is attached to the cable system, there is a natural resistance developed from closing the handle of the boot, thus causing a flex (i.e., a progressive flex) to the cuff of the boot. The flex of all other boots depends upon the skier distorting the plastic at the front of the shin, and is fixed. The progressive flex of the sport boot described herein can be changed or adjusted by the user by varying how much tension is applied to the cables via the micro adjustment (e.g., thumb nuts 121 and 122).
In an example, the fastening system 100 may include a plurality of substantially disc-shaped terminators in a base portion of the boot 100.
Each of the terminators have a plurality of receptacles to receive the ends of the cables 114a and 115a. For example, a first end of the first cable 114a is coupled to a first terminator and a first end of the second cable 115a is coupled to a second terminator. Another cable 114b and 115b extends from each of the terminators for the respective cables 114a and 115a and connect to a lever handle 120 on the rear (cuff) portion of the boot 100. For example, the cables 114b and 115b may be connected to cable tension assemblies 121 and 122 including thumb nut with lower hub for receiving the ends of cables 114b and 115b. Cable tension assemblies 121 and 122 may be provided to fine tune tension on the cables, e.g., when the lever handle 120 is in a released position as shown in
Before continuing, it is noted that although the sport boot (or “boot”) is described herein primarily as the cable system may be used for a ski boot or the like, the systems and methods may also benefit other types of footwear, such as but not limited to a snowboard boot, rollerblade boot, or hiking or work boot.
Likewise, decreasing tension (e.g., by operating the lever handle 120) releases the cables 114a and 115a (see
It is noted that the fastening system 110 described herein may be used in addition to, or in lieu of a buckle (or other adjustable type device) to pull the two half shells closed.
An example cable configuration is illustrated as part of an assembly process in
In
In an example, the fastening system 100 include terminators 150 and 151 provided in cavity 160 or repository of the boot sole 103 (see
In the example cable configuration illustrated in
A third cable 115a has a first end 115c terminating in a first receptacle 156a of a second of the terminators 151. The third cable 115a extends out of the first side of the base of the boot 100, around the foot portion of the boot 100 and into the second side of the base of the boot 100. A second end 115d of the third cable 115a terminates in a second receptacle 156b of the terminator 151. A fourth cable 115b has a first end 115e terminating in a third receptacle 156c of the terminator 150. The fourth cable 115b extends out of a rear side of the base of the boot 100 and is attached to the handle 120 (see, e.g.,
During use, the cables 114a and 115a may be extended or wrapped around a foot portion of the boot 100 and tightened behind an ankle portion of the boot. 100. The lever 120 may serve to adjust tension when operated to move between an open position (to loosen) and closed position (to tighten).The cables 114b and 115b may also be adjusted for tightness, e.g., using thumb nuts of cable tension assemblies 121 and 122 or other adjustable device on the handle 120.
In an example, the receptacles (e.g., 155a-c) may be formed into a bottom surface of the terminator (e.g., 151) and accessed through a perimeter of the disc-shaped terminator. In an example, the receptacles have a radial portion having a first cross section and an interior portion having a second cross section, the second cross section larger than the first cross section to securely receive enlarged ends of the first and second cables. The cables may have enlarged ends (e.g., shown as balls in
Applying opposing forces to the terminator along a first orientation applies tension to the first and second cable, and wherein applying opposing forces to the terminator along a second orientation approximately perpendicular to the first orientation disengages the cable from the disc.
In an example, the discs may have a large top and bottom surface, and a relatively small height defining a relatively small perimeter surface. A number of receptacles may be formed (e.g., machined) into one or both of the top and bottom surfaces of the connector and through the perimeter surface of the disc. The receptacle(s) may include a radial portion having a first cross section and an interior portion having a second cross section larger than the first cross section to encourage a selectable locking relationship with one or more cables.
In an example, the cables may have ends which can be removably coupled within the receptacles of connectors. It is noted that the use of a cover on the disc is optional. Another way to lock the cable connection place may be by placing the ball portion into the receptacle and forming the material around it to hold the assembly together. In another example, the connector may be designed such that the ball (or other fitting) can be positioned into the connector only one way, and it may lock when rotated. Other designs are also contemplated.
In an example, the cables may have bulbous (or other enlarged) distal tips having cross section greater than that of the cable body. The enlarged tips (or tips provided with a bulb or other enlargement) may cooperate with the interior portions of the receptacles. The cable tips and/or interior portions of the receptacles are shown as being substantially round, although any geometry may be used (e.g., square, diamond, pyramid, etc.).
During use, the connectors serves as joint areas for single ball shanks swaged at each end of the cables. The cable ends are coupled to connectors by receipt within connector receptacles. Opposing forces may be applied to the disc and cable along a first orientation, which effectively serves to provide tension to the cable.
It can be seen that pulling a cable that is engaged with a connector in a radial direction causes a binding of the increased cross section distal tip with the decreased cross-section of the receptacle radial portion and prevents disengagement of the cable and connector.
In an example, cable guides may also be provided inside the repository adjacent to the passages, for example, to push the cables into a straighter orientation, thus reducing or altogether preventing erosion of the passages by relative motion of the cables.
The tightening system may include any number of forward passages, medial passages and rear passages. Greater or fewer passages than shown may be provided, e.g., depending on the number of cables used within the system In an example, the rear passages may have an orientation approximately perpendicular to the forward and medial passages to divert cables to an exterior heel portion of the ski boot.
In an example, the power strap 300 includes an adjustable type device (e.g., ratchet buckle, latch, hook-and-loop fastener). In an example, the power strap 300 may include a micro-adjustable buckle. The power strap 300 can also be adjustable to accommodate various leg shaft sizes.
One or more lower ridge 330 may also be provided and configured to reduce or prevent slipping of the power strap 300 in a downward direction on the front upper ankle portion of the boot. The power strap 300 may also be held in place by an upper ridge 331 or other anti-slip device that reduces or altogether prevents slippage of the power strap 300 in the upward direction.
The boot boards include a heel section which slopes down to the toe section. Such a configuration provides the user with more control, e.g., for turning during use. By lifting the toes, pressure is relieved from the toes and places most of the force onto the ball of the user's foot. This also allows the toes to relax during skiing and accordingly, reduce fatigue to the toes.
In
In
Before continuing, it should be noted that the examples described above are provided for purposes of illustration, and are not intended to be limiting. Other devices and/or device configurations may be utilized to carry out the operations described herein.
An example method assembling a cable to a disc for tightening a ski boot may include providing a disc including a receptacle in a base of the ski boot, receiving ends of a cable in the receptacle of the disc, and moving the cable to tighten the ski boot. Where two fastening assemblies are used, the method further includes providing a second disc including a receptacle in the base of the ski boot, receiving ends of a second cable in the receptacle of the second disc, and moving the second cable to tighten the ski boot.
In an example, the method includes moving both the first and the second cables at the same time to tighten the ski boot. Moving both the first and the second cables may be by a lever on a back rear (cuff) portion of the ski boot. The method may further include moving the cable over a cable wear guide on a back of the rear (cuff) portion of the ski boot.
By way of illustration, a body of the cable is slidably received through the forward passages such that the cable is encompassed by a cavity or repository formed in the sole of the boot, and a first arc is formed by the cable around a boot toe. The body of the cable may be slidably received through medial passages such that the two ends of the cable are encompassed by the repository and a second arc is formed around a boot mid-foot. The body of the cable may be slidably received through the rear passages such that one end of the cable is encompassed by the repository. The body of the cable may also be slidably received through the rear passages, such that one end of cable is encompassed by the repository.
Cable ends may be coupled by connectors on the lever handle of the boot. In an example, the lever on the back of the boot is raised into a closed position to tighten the cable. A cable tension adjuster may be further operated, e.g., by rotation of a first knob in a first direction to increase tension in cable (while rotation of the first knob in a second direction decreases tension in the cable). A second end of cable may be coupled with a cable tension adjuster, wherein rotation of a second knob in a first direction increases tension in the cable (while rotation of the first knob in a second direction decreases tension in the cable).
The operations shown and described herein are provided to illustrate example implementations. It is noted that the operations are not limited to the ordering shown. Still other operations may also be implemented.
It is noted that the examples shown and described are provided for purposes of illustration and are not intended to be limiting. Still other examples are also contemplated.
This application claims the priority benefit of U.S. Provisional Patent Application No. 61/882,589 filed Sep. 25, 2013 and titled “Enhanced Sport Boot” of Rex Deitesfeld, hereby incorporated by reference in its entirety as though fully set forth herein. This application is also related to U.S. Pat. No. 4,654,985, hereby incorporated by reference in its entirety as though fully set forth herein.
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Entry |
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Number | Date | Country | |
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20150082666 A1 | Mar 2015 | US |
Number | Date | Country | |
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61882589 | Sep 2013 | US |