Footwear fit system
An article of footwear has a sole and a footwear fit system. The sole has a first side and a second side. The footwear fit system has a pair of fitting members that include a first base portion and a second base portion. The first base portion extends upwardly from the first side to support a first foot-bearing portion that extends laterally from the first base portion to a first terminus. The first base portion and the first foot-bearing portion together forming at least one resilient elongate finger that independently biases the first foot-bearing portion towards the sole. The second base portion extends upwardly from the second side to support a second foot-bearing portion that extends laterally from the second base portion to a second terminus. The second base portion and the second foot-bearing portion together form at least one resilient elongate finger that independently biases the second foot-bearing portion towards the sole. The first terminus is positioned adjacent to the second terminus for operably fastening a foot of a user on the sole.
This application for a utility patent claims the benefit of U.S. Provisional Application No. 60/287,628, filed Apr. 30, 2001, hereby incorporated by reference in its entirety.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCHNot Applicable
BACKGROUND OF THE INVENTION1. Field of the Invention
The present invention relates to footwear, and, more particularly, to a closure system which allows an article of footwear to be conveniently and adaptively attached to the foot.
2. Description of Related Art
Shoe and boot designs, driven by various combinations of fashion and function, have been evolving for centuries. Many varieties of styles have proven to be viable in the market place. Specialized features such as sole tread design, upper height and material, lacing schemes and interior last shapes have allowed function to reflect targeted uses.
Since an article of footwear must integrate with the three-dimensional shape and surface features of the human foot, a variety of closure systems have been devised. These include laces, straps, elastic panels, buckles, etc. In concept, these systems are designed to allow the wearer to close or tighten the shoe's upper around the foot and secure the article in place for walking, running of whatever other activity is desired. Some footwear designs have made use of relatively rigid panels or component members such that foot and ankle support is increased when the closure system is adjusted for a given foot shape. These “hard” panels are normally shaped and positioned to allow the foot convenient entry to the interior of the shoe, then are brought closer to the foot's external shape as the closure system is tightened. Thus, the rigid panels, by themselves, are made functional only by the positioning and security that laces, stretchable elements or other closure systems provide.
SUMMARY OF THE INVENTIONDisclosed is a footwear closure and fit system in which one or more firm but flexible fitting members, such as fit panels, are integrated into the construction of an article of footwear, such as a shoe or boot. These panels are configured so as to hold the article of footwear to the foot without the use of laces, straps or other attachment devices. The panels are designed and positioned such that in a default or relaxed state, they define an interior space somewhat smaller in volume than the user's foot. To enter the shoe or boot, the fitting panels are retracted, either manually or simply by the motion of the foot entering the interior space. As the foot becomes located in it's proper position within the shoe or boot, the flexural force of the panels exerts a closing force against the foot, with an equilibrium attained that allows the shoe or boot to effectively become one with the foot. Advantageously, the fit panels do not require manual or mechanical tightening by the user to effect their closure function, although the closure and fit system may be supplemented with manual attachments, such as, for example, laces or clips.
The flexible panels may either bear directly onto the foot surface, or be enclosed within the body of the shoe or boot's upper thus activating an intermediate layer for the purpose or positioning the foot as desired. It is also foreseen that primary flexural panels could bear upon other attached but articulating secondary panels, whereby the flexural force of the primary panels holds the articulating secondary panels against the foot. The articulating secondary panels then may more freely adapt to the contours of the individual foot. The panels, in their variety of arrangements, may be incorporated into any type of footwear, including shoes, boots, and sandals.
Other features and advantages of the present invention should be apparent from the following description of the preferred embodiment, which illustrates, by way of example, the principles of the invention.
BRIEF DESCRIPTION OF THE DRAWINGThese and other features of the invention will now be described with reference to the drawings summarized below. These drawings and the associated description are provided to illustrate preferred embodiments of the invention, and not to limit the scope of the invention.
Throughout this description, the preferred embodiment and examples shown should be considered as exemplars, rather than limitations on the apparatus and methods of the present invention.
As shown in the above-described figures, the invention is footwear 5 that includes a footwear member 10 and a footwear fit system 28 that is operably attached to a footwear member 10. The footwear member 10 includes a sole 12 that includes a top sole surface 14, a bottom sole surface 16, a first side 18, a second side 20, a rear side 22, and a front side 24. The footwear member 10 can also include various additional elements, such as an upper 25 and an inner lining 27, as described in greater detail below. The footwear fit system 28 can include one or more fitting members 30, a heel portion 70, a tongue element 70, and/or a front fitting member 95. The one or more fitting members 30 and/or the other elements described function, in combination, to removably attach the sole 12 to a foot 26 of a user, and are described in greater detail below.
Various embodiments of this invention are described, in turn, below. Before describing these particular embodiments, however, we will first discuss the general structure and function of the invention.
In the embodiments shown in
As shown in
The fitting members 30 extend upwardly from the outer periphery of the sole 12 and are disposed around the foot 26 when the foot 26 is located within the volume 32. As shown in the cross-sectional view of
With reference still to
The fitting members 30 are preferably configured to allow movement to an extended position (shown in phantom lines) such that when in the extended position, the volume 32 increases in size. The size of the entryway 34 also increases when the fitting members 30 are moved to the extended position. The entryway 34 preferably increases to a size such that the foot 26 may be inserted into the volume 32 by sliding the foot 26 at least partially through the entryway 34.
It will be appreciated that the particular size, shape and location of each of the fitting members 30 could be varied to change the size and shape of the volume 32. The fitting members 30 preferably have a shape such that the volume 32 approximates the shape of the foot 26. The fitting members 30 are preferably rigid such that the fitting members maintain their general shape and do not plastically deform when pressure is applied thereto. However, the fitting members 30 are also flexible so that the fitting members 30 conform to the shape of the foot 26 when the fitting members 30 bear against the foot 26. The outline shape of the fitting members 30 is not necessarily elastic or stretchable. However, the range of movement of the fitting members 30 between the default and the extended position is preferably configured such that the fitting members 30 automatically recover to the default position after being moved away from the default position. The position of the fitting members, as they define the default position, may additionally be adjustable by either the manufacturer, retailer or user.
The fitting members 30 may be manufactured of any of a wide variety of materials to vary the characteristics of the fitting members 30, such as the flexibility and hardness. In one embodiment, the fitting members 30 are manufactured of injection molded nylon. Select regions of the fitting members 30 may also be manufactured of a different material than other regions of the fitting members, or of varying structural thicknesses, such as to vary the flexibility of the fitting members 30 within the select regions.
A fabric loop (not shown) or other gripping surface may be installed at the top of the fitting members 30 to facilitate entry of the foot 26. Alternatively, a tongue element 90, described in greater detail below, may be installed between the fitting members 30 and the foot 26 which, when manually retracted, facilitates entry. Alternatively, an elastic inner lining 27 may exist between the foot 26 and the fitting members 30 to help position the foot 26 with respect to the sole 12, with the fitting members 30 providing additional security of fit. These alternative embodiments are described in greater detail below.
First Embodiment In a first embodiment, as shown in
As illustrated by this embodiment, the pair of side fitting members 40 include a first base portion 42 that extends upwardly from the first side 18 of the sole 12, and a second base portion 48 that extends upwardly from the second side 20 of the sole 12. A first foot-bearing portion 44 extends laterally from the first base portion 42 to a first terminus 46. The first base portion 42 and the first foot-bearing portion 44 together form at least one resilient elongate finger that independently biases the first foot-bearing portion 44 towards the sole 12.
A second foot-bearing portion 50 extends laterally from the second base portion 48 to a second terminus 52. The second base portion 48 and the second foot-bearing portion 50 together forming at least one resilient elongate finger that independently biases the second foot-bearing portion 50 towards the sole 12. The first terminus 46 is positioned adjacent to the second terminus 52. For purposes of this specification, the first terminus 46 should be considered as positioned adjacent the second terminus 52 as long as they are generally close to each other and together function to fasten the footwear member 10 to the sole 12. As illustrated below, the first terminus 46 and the second terminus 52 can be located in a variety of positions, as long as this functional relationship is maintained. In this embodiment, the side fitting members 30 are sized such that the fingers extend toward the median line of the foot 26, but the first terminus 46 does not overlap the second terminus 52.
Illustrated in
In a second embodiment, as shown in
The third embodiment of the footwear fit system 28, as shown in
The fitting members 30 may be integrally attached to the sole 12. Alternately, the fitting members 30 may be attachable and/or adjustable by the user, thereby allowing the user to position the fitting members 30 to a location that suits the user's needs and tastes. Alternative embodiments of the rear fitting member 66 are described below.
As shown in
The fourth embodiment of the footwear fit system 28, as shown in
The fitting members 30 bear against the foot 26 when the foot 26 is positioned within the volume to thereby secure the foot 26 within the volume. When incorporated into the footwear member 10, the footwear fit system 28 secures the foot 26 within the footwear member 10. The quantity of fitting members 30 may be selected to vary the amount of pressure applied to the foot 26 and to vary the amount of surface contact between the foot 26 and the fitting members 30. Additionally, the location and shape of the fitting members 30 may also be varied. The amount of force exerted on the foot 26 by each fitting member 30 may be easily adjusted at the manufacturing level by the selection of its material, the material thickness and width, and the degree of deflection incurred when the foot 26 is in place. The padder layer 36 on the inside surface of the fitting members 30 may be installed as desired to adjust pressure, friction and overall comfort.
In one embodiment, the fitting members 30 and the sole 12 are collectively molded as a single element, which is then incorporated into the sole 12 of the shoe or boot. Where the fitting members 30 are hinged at or near the sole 12, a firm fixation and/or integration of the members 30 to the sole 12 is desired. The members 30 may thus be incorporated with a full or partial length shank, as commonly used in footwear construction.
Fifth Embodiment In another embodiment, as shown in
With reference to
It will be appreciated that the footwear fit system 28 could be incorporated in other manners into the footwear member 10. The footwear fit system 28 could also be surrounded by any of a wide variety of uppers 25 or could be secured within an inner lining of the uppers 25. In such cases, the fit system 10 would not be visible but would rather be concealed by the upper 25.
Seventh Embodiment
This embodiment further includes a tongue element 90 adapted to move from a primary position wherein the tongue element 90 is located between the sole 12 and the first and second foot-bearing portions 44 and 50, to a secondary position wherein the tongue element 90 is located between the first foot-bearing portion 44 and the second foot-bearing portion 50. The tongue element 90 functions to push the first terminus 46 away from the second terminus 52, thereby opening the side fitting members 40 and facilitating the insertion of the foot 26 into the footwear member 10.
The fitting members 30 can be covered, at least in part, by a padded layer 36, as illustrated by
Heel Portion
In another embodiment, as shown in
As shown in
In some embodiments, as shown in
There are several advantages of the footwear fit system 28:
- a) The fitting members 30 allow smooth, seam-free contact areas against the foot 26 for improved comfort.
- b) The range of travel designed into the fitting members 30 can allow a wider range of foot 26 shapes to be accommodated in a given size. This could lead to a fewer number of sizes needing to be stocked by the retailer of the footwear member 10. Additional applications could be developed that would allow multiple whole sizes of feet to be secured within a single shoe or boot size. This would provide for efficient use of generic/community footwear stocks, for example, in damage control or fire fighting situations, rental of sports footwear, and longer use of a given article of footwear for growing children.
- c) The footwear fit system 28 does not require the mechanical components of laces, hook and pile fasteners, strap clips, or buckles. This offers potential cost savings, but more importantly, allows the foot 26 to be inserted without the need to manually affix, tighten or tie these conventional systems. This could be particularly helpful for elderly or handicapped users who presently need assistance to put on their footwear.
- d) As a shoe or boot is used, re-tightening of the laces or other closure system is often required. Since the fitting members 30 exert a continuous pressure onto the foot 26, there is no need to periodically adjust the closure.
- e) The fit members 30 may be fabricated of injection molded or pressure formed plastic materials, and tooling expenses will thus be incurred. However, with most or all of the fit system components pre-fabricated in this way, substantial savings in total product costs could be realized with respect to laces, eyelets, straps, fasteners, Velcro, and the labor required to install them. A production method is also foreseen in which the fitting members 30, outsole and padding areas are integrated into a multiple density molding process, with the finished molded product requiring little, if any, additional hand labor.
- f) Overall fit quality could be improved using the subject design. It is known that certain areas of the foot 26 are particularly sensitive to pressure. Using fitting members in less sensitive areas can allow secure fitting of the shoe or boot, while reducing or eliminating the pressure at sensitive points which is common with more traditional designs.
Although this invention has been described in terms of certain preferred embodiments, other embodiments that are apparent to those of ordinary skill in the art are also within the scope of this invention. Accordingly, the scope of the present invention is intended to be defined only by reference to the appended claims.
All patents, patent applications, and other documents and printed matter cited or referred to in this application is hereby incorporated by reference in full.
Claims
1-28. (canceled)
29. A footwear fit system for securing a person's foot to a sole, the footwear fit system comprising:
- a sole having a width and a first side and a second side separated by the width;
- first and second pluralities of spaced apart fitting members directly secured to the sole in proximity to the first and second sides, respectively and extending upwardly and terminating away from the sole and being resiliently biased toward a position that bears against a wearer's foot when the foot is positioned on the sole with sufficient force so as to secure the sole to the foot.
30. The footwear fit system of claim 29, wherein a side fitting member is located on a side region of the sole such that the side fitting member bears against a medial or lateral region of the wearer's foot when the foot is positioned on the sole, wherein at least a portion of the side fitting member bears downwardly against the foot toward the sole so as to press against the foot toward the sole.
31. The footwear fit system of claim 30, wherein a rear fitting member is located on a region of the sole such that the rear fitting member bears against a calcaneous region of the wearer's foot when the foot is positioned on the sole.
32. The footwear fit system of system of claim 31, wherein the side and rear fitting members are biased toward a default position so as to collectively define a volume that is smaller than the volume of a wearer's foot, the side and rear fitting members being moveable to an extended position such that the volume increases in size.
33. The footwear fit system of claim 29, wherein the fitting members comprise a plurality of fitting members that are integrated with one another.
34. The footwear fit system of claim 29, wherein the one or more fitting members are located at various attachment points on the sole.
35. The footwear fit system of claim 29, wherein an upper is attached to the sole and wherein the fitting members are positioned within the upper.
36. The footwear fit system of claim 29, wherein an inner lining or panel is disposed within the upper and wherein the fitting members are interposed between the inner lining and the upper.
37. The footwear fit system of claim 29, wherein at least one articulating panel is attached to a fitting member, the articulating panel bearing against the person's foot when the foot is positioned on the sole so that the articulating panel conforms to the shape of the wearer's foot.
38. The footwear fit system of claim 29, wherein the fitting members are disposed outside of the upper.
39. The footwear fit system of claim 39, wherein the fitting members bias toward a position that bears against a wearer's foot with sufficient force so as to, without additional securement means, secure the sole to the foot.
40. Footwear comprising:
- a sole having a first side and a second side;
- a first base portion that extends upwardly from the first side;
- a first foot-bearing portion that extends laterally and upwardly from the first base portion to a first terminus, the first base portion and the first foot-bearing portion together forming at a plurality of spaced apart resilient elongate fingers that independently bias the first foot-bearing portion towards the sole with sufficient force to secure the sole to the foot;
- a second base portion that extends upwardly from the second side; and
- a second foot-bearing portion that extends laterally from the second base portion to a second terminus, the second base portion and the second foot-bearing portion together forming a plurality of spaced apart resilient elongate finger that independently bias the second foot-bearing portion towards the sole with sufficient force to secure the sole to the foot.
41. The footwear of claim 40, further comprising a heel portion positioned adjacent a rear side of the sole, the heel portion being resiliently biased to move from a first position adjacent the sole towards a second position above the sole.
42. The footwear of claim 41, wherein the heel portion includes an elongate heel support that is attached at a first end to the first side and at a second end to the second side, the heel portion having a heel contacting portion between the first and second ends.
43. The footwear of claim 40 further comprising a first foundation member that extends inwardly from the base portion into or overlapping the sole.
44. The footwear of claim 43 further comprising a second foundation member that extends inwardly from the second base portion into or overlapping the sole.
45. Footwear comprising:
- a sole having a first side and a second side;
- a first base portion that extends upwardly from the first side; and
- a first foot-bearing portion that extends laterally from the first base portion to a first terminus, the first base portion and the first foot-bearing portion together forming a plurality of spaced apart resilient elongate fingers that bias the first foot-bearing portion towards the sole with sufficient force to secure the sole to the foot.
46. The footwear of claim 45 wherein said resilient elongate finger is biased towards the sole with sufficient force to by itself secure the sole to the foot.
Type: Application
Filed: Apr 21, 2005
Publication Date: Aug 25, 2005
Inventor: Roger Neiley (Laguna Beach, CA)
Application Number: 11/112,244