The present disclosure relates to an item of footwear and, more particularly, to a modular convertible footwear with interchangeable or replaceable sole member that allows for customization thereof.
Typically, a footwear, like a shoe, includes an upper part, a platform and a sole; while other features such as a lining, a tongue and an inner sole may also be present. Typically, the sole is fixed (generally, glued) with the underside of the platform. The platform provides the main support for the bottom of the foot, and the sole function to protect the underside of the platform from wear. Often, the soles of a pair of shoes become worn out before the upper part and the platform of the shoe. That is, the upper part and the platform of the shoes may still be in relatively new and/or good condition, while the soles of the shoes may have worn out. This may cause the shoes to become uncomfortable and/or bad for the joints of the person wearing the shoe.
Most shoes available in today's marketplace are constructed using the so-called Strobel method which produces ample flex, and allows a sock-like feel by using a cloth connection to stitch the upper (the portion of the shoe that wraps the foot) to the midsole (the section that contains the cushioning). The traction-containing outsole is then cemented or glued onto the midsole. Shoes constructed using the Strobel method, in particular athletic shoes, are prone to failure, or blowouts, where the upper connects to the midsole. One such highly publicized blowout occurred during a high-profile NCAA basketball matchup between Duke and North Carolina on Feb. 20, 2019. Thirty-three seconds into the game, Duke freshman Zion Williamson, who is six feet seven inches tall and weighed 284 pounds, planted his left foot to make a move to the basket when the upper ripped away from the midsole on his left shoe.
Furthermore, some persons (for example, athletes) may be required to wear shoes with different types of soles for different occasions/purposes. For example, for a sport, such as soccer, the game may be played on natural grass, various kinds of artificial grass or rugs, and various kinds of soil. In order for the athlete to achieve athletic performances on varying field conditions, the shoe soles should have a tread best suited to the particular field surface and the condition thereof at the time of use. However, stylistic aspects of footwear are traditionally determined at the point of manufacture, the user's only option when selecting a different style or appearance being to select one pair of shoes in preference to another. Therefore, in such case, an individual athlete may be required to own each type of shoes, which may turn out to be an expensive proposition.
Some shoes having interchangeable soles are known in the art but had not met with commercial acceptance because of the complex and impractical nature thereof. Generally, conventional replaceable soled shoes do not allow for easy release and attachment, and typically do not provide good stability on the shoe.
Accordingly, there is a desire for shoes with easily interchangeable soles that avoid the above described and other related problems. There is also a need and a desire for a new method of constructing footwear that is not subject to the weaknesses and blowouts common with shoes assembled using the Strobel method.
The present disclosure provides an item of footwear with removable modular sole member that allow customization of the footwear with respect to traction, cushioning, support, fit, performance and/or aesthetic functions and features. It is an object of the present invention to provide a footwear which can be customized to be utilized for varying conditions and/or occasions. Another object of the invention is to provide a footwear with relatively simple means for quickly and firmly securing an interchangeable sole with effective elements which do not adversely affect the appearance or comfort of the footwear.
The footwear of the present disclosure includes a main body. Herein, the main body includes an upper portion and a base portion. The base portion is provided with multiple openings. The openings are sized and spaced in a predefined manner. The present footwear further includes a sole member complementary to shape of the base portion of the main body. The sole member generally has a flat surface on one side and protrusions extending from other side thereof. The protrusions are sized and spaced conforming to the size and spacing between the openings provided in the base portion of the main body. The sole member is adapted to be inserted inside the main body, such that the protrusions in the sole member extend out through the openings in the base portion of the main body, to removably attach the sole member with the main body in the footwear.
In one or more embodiments, the footwear further includes a tongue member. The tongue member includes a tongue portion and a base portion flexibly coupled with each other. The base portion of the tongue member is complementary to the shape of the base portion of the main body. The base portion of the tongue member is further provided with openings, similar to the openings in the base portion of the main body. The tongue member is inserted into the main body such that the base portion thereof rests on the base portion of the main body and the openings in the base portion of the tongue member are aligned with the openings in the base portion of the main body with the protrusions in the sole member extending out through the openings in the base portion of the tongue member as well as the base portion of the main body. Herein, the tongue portion is adapted to be folded, with respect to the base portion in the tongue member, to be accommodated inside the main body.
In some embodiments, the main body includes a cover portion flexibly coupled to the upper portion thereof, and adapted to be folded over to cover the tongue portion of the tongue member when inserted in the main body.
In some embodiments, the cover portion includes a fastener and the upper portion includes a cooperating fastener such that when the cover portion is folded over, the fastener and the cooperating fastener engage with each other to secure the cover portion over the upper portion, in the main body.
In some embodiments, the upper portion of the main body is provided with eyelets for allowing laces to pass therethrough, for proper tying of the footwear over the foot of the user.
In some embodiments, the tongue member is provided with eyelets for allowing of laces to pass therethrough, for proper tying of the footwear over the foot of the user.
The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
For a more complete understanding of example embodiments of the present disclosure, reference is now made to the following descriptions taken in connection with the accompanying drawings in which:
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. It will be apparent, however, to one skilled in the art that the present disclosure is not limited to these specific details.
Reference in this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. The appearance of the phrase “in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Further, the terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. Moreover, various features are described which may be exhibited by some embodiments and not by others. Similarly, various requirements are described which may be requirements for some embodiments but not for other embodiments.
Numerous embodiments are described in the present application, and are presented for illustrative purposes only. The described embodiments are not, and are not intended to be, limiting in any sense. The presently disclosed invention(s) are widely applicable to numerous embodiments, as is readily apparent from the disclosure. One of ordinary skill in the art will recognize that the disclosed invention(s) may be practiced with various modifications and alterations, such as structural and logical modifications. Although particular features of the disclosed invention(s) may be described with reference to one or more particular embodiments and/or drawings, it should be understood that such features are not limited to usage in the one or more particular embodiments or drawings with reference to which they are described, unless expressly specified otherwise.
Referring to
Referring to
Further, as illustrated better in
Also, as illustrated, the upper portion 106 of the main body 102 may be provided with eyelets 118 formed along front and upper lateral ends thereof. As may be seen, the eyelets 118 are generally distributed along the lateral edge of the upper portion 106. As may be contemplated, the eyelets 118 are in the form of apertures to allow for laces to pass therethrough, such that the laces could be tied up as desired, as may be required for snugly tying up and fitting the footwear 100 over the foot of the user.
Referring now to
In some examples, the upper surface of the sole member 104 may be coated, laminated or covered with an inner sole made generally of cushioning and soft materials. Further, in some examples, the sole member 104 may be provided with cushioning elements which may provide basic shock absorbing, energy return, and/or protective underfoot materials or structures that are intended to react to the forces of foot strike by providing force attenuation, dissipation, dampening, or energy return (spring), which are typically included on sports and athletic shoes. For example, the cushioning element may include a consistent and uniform layer of shock absorbing and protective material, such as EVA or polyurethane, placed in a shoe between the foot and the ground, or customized placements of varying cushioning materials and structures under a foot, or may be based on EVA or polyurethane foam, visco-elastomers of foam or gels, fluid filled bladders, mechanical springs or resiliently collapsible mechanical structures, fluid (e.g., air) springs, or any combination of the foregoing.
The sole member 104 generally has a flat surface on one side and protrusions 120 extending from other side thereof. As may be seen from
Referring back to
As may be contemplated, the tongue member 122 is inserted into the main body 102 such that the base portion 126 thereof rests on the base portion 108 of the main body 102 and the openings 128 in the base portion 126 of the tongue member 122 are aligned with the openings 110 in the base portion 108 of the main body 102. In such configuration, the protrusions 120 in the sole member 104 extend out through the openings 128 in the base portion 126 of the tongue member 122 as well as the openings 110 in the base portion 108 of the main body 102. Further, in such configuration, the tongue portion 124 is adapted to be folded with respect to the base portion 126 to be generally disposed at an angular position extending outwardly from the upper portion 106 of the main body 102, and to be generally accommodated inside the main body 102 (as better shown in
Thereafter, as illustrated in
Subsequently, as illustrated in
As discussed, the sole member 104 may have different bottom configurations to allow for more customization options of the footwear 100 for the user. The footwear 100 in accordance with the present invention have the economic benefit of allowing replacement of only the sole member 104 rather than the whole shoe when the sole member 104 is worn down or otherwise not desirable for use. The footwear 100 may come up with a single sole member 104 or a plurality of sole members 104 that are separated with different properties, e.g., varying traction, and the use of a specific sole member may be depend on the activity. Replaceable sole members 104 in accordance with the present invention may be utilized for multi-terrain shoes with different soles for different terrains; for example, trail, street and/or sidewalk, running track, treadmill, indoor court, outdoor court, grass, or any other terrain. These sole members 104 may be various types of soles, such as racing soles, training soles, and extra support soles. Use of separate sole members 104 allows for a user to customize the sole properties, e.g., to compensate for pronation or to provide more or less traction in different areas of the foot, for example, in forefoot, mid-foot and/or rear-foot locations.
The present footwear 100 is ideally suited for those wearers who participate in a number of different indoor and outdoor activities or sports, allowing the same uppers to be used with a number of different removable lower soles, thereby eliminating the need to purchase multiple pairs of expensive shoes. Footwear 100 of the present disclosure with interchangeable sole members 104 are particularly valuable for persons who desire variety in footwear and are limited by considerations of economy. One pair of main body 102 may be used with a number of interchangeable sole members 104, thereby affording a wide variety in footwear apparel at a cost of little more than the price of one or two pairs of conventional footwear. Footwear 100 with interchangeable sole members 104 are also desirable in instances where storage or packing space is at a premium. For example, during a journey a traveler may need pairs of shoes with different types of soles for performing varying activities (like, walking, hiking, running, etc.), which ordinarily would fill an entire suitcase. By carrying several pairs of flexible interchangeable sole members 104, substantial packing space may be saved, because the compressible interchangeable sole members 104 fit into a comparatively small area. The present footwear 100 allows the wearer to quickly and easily change the soles on his or her shoes to meet specific needs. Also, as the sole member 104 is disposed inside the main body 102, the sole member 104 cannot separate from the main body 102 during the use of the footwear 100.
The foregoing descriptions of specific embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiment was chosen and described in order to best explain the principles of the present disclosure and its practical application, to thereby enable others skilled in the art to best utilize the present disclosure and various embodiments with various modifications as are suited to the particular use contemplated.
Filing Document | Filing Date | Country | Kind |
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PCT/US20/59561 | 11/6/2020 | WO |
Number | Date | Country | |
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62932960 | Nov 2019 | US |