US20220322788A1 - Shoe with sole removably attached to upper - Google Patents
Shoe with sole removably attached to upper Download PDFInfo
- Publication number
- US20220322788A1 US20220322788A1 US17/717,595 US202217717595A US2022322788A1 US 20220322788 A1 US20220322788 A1 US 20220322788A1 US 202217717595 A US202217717595 A US 202217717595A US 2022322788 A1 US2022322788 A1 US 2022322788A1
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- US
- United States
- Prior art keywords
- shoe
- sole
- overlay
- retention
- cord
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229920002803 thermoplastic polyurethane Polymers 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 2
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- 229920000433 Lyocell Polymers 0.000 description 1
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- 210000001361 achilles tendon Anatomy 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/28—Soles; Sole-and-heel integral units characterised by their attachment, also attachment of combined soles and heels
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/24—Collapsible or convertible
- A43B3/244—Collapsible or convertible characterised by the attachment between upper and sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/0063—Footwear characterised by the material made at least partially of material that can be recycled
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
- A43B13/122—Soles with several layers of different materials characterised by the outsole or external layer
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
- A43B13/223—Profiled soles
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B9/00—Footwear characterised by the assembling of the individual parts
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C1/00—Shoe lacing fastenings
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- A43C1/00—Shoe lacing fastenings
- A43C1/04—Shoe lacing fastenings with rings or loops
Definitions
- This disclosure relates generally to shoe, and more particularly to a shoe in which a shoe sole is removably attached to a shoe upper.
- shoes have been manufactured by permanently fixing the shoe sole to the shoe upper.
- the sole is fixed to the upper by for example, stitching, cement, or other permanent assembly.
- assembly is difficult and time consuming.
- the sole cannot be replaced if the sole has become worn or if the user wishes to change the tread pattern or other characteristics of the sole.
- it is difficult to recycle the shoe parts into their individual compounds.
- Patent literature document KR 2020-0048892 A discloses a shoe including an upper that is attached to a sole via a mesh. However, the mesh of KR '892 is unable to sufficiently hold the upper and sole together.
- Patent literature document KR 2019-0037427 discloses a shoe including an upper that is attached to a sole via a strap member. Like KR '892, the strap member of KR '427 is unable to sufficiently hold the upper and sole together.
- One aspect is a shoe including an upper, a sole including slots formed in a bottom of the sole, and retention overlay.
- the sole is removably attached to the shoe upper via the retention overlay, which is provided within the slots formed in the bottom of the sole.
- the retention overlay is secured or tightened at a rear of the shoe.
- the aspect may allow for a simple shoe assembly and may also allow for removable assembly and disassembly of the upper and sole of the shoe.
- FIG. 1 shows a first embodiment of a shoe.
- FIG. 2 is a top view of the shoe upper.
- FIG. 3 is a bottom view of the shoe upper.
- FIG. 4 is a rear view of the shoe.
- FIG. 5 is a view showing the upper and sole.
- FIG. 6 is a side view of the shoe.
- FIG. 7 is a bottom view of shoe.
- FIG. 8 is a rear view of the shoe with the cord tightened to secure the upper and sole.
- FIG. 9 shows a second embodiment of the shoe.
- FIG. 10 is a lateral view of the shoe upper and retention overlay.
- FIG. 11 is a lateral view of the shoe.
- FIG. 12 is a bottom view of the shoe.
- FIG. 13 is a lateral view of the assembled shoe.
- FIG. 14 is a close-up view of the bottom of the shoe.
- FIG. 15 is a rear view of the shoe.
- FIG. 16 shows a third embodiment of the shoe.
- FIG. 17 is rear view of the shoe.
- FIG. 18 is bottom view of the shoe.
- FIGS. 1-19 depict a first embodiment of a shoe 100 , including an upper 10 , a sole 20 , and a retention overlay 30 .
- the shoe may be made of any suitable materials, but are preferably made of sustainable materials.
- the upper 10 may be made of any suitable material for example Knit Polyester, Nylon, Recycled PET, Lyocell, wool, cotton, or any suitable textile.
- the retention overlay 30 also may be made of any suitable material, for example Recycled PET webbing, recycled content Thermoplastic Polyurethane (TPU), bio-based resin, hemp cording, or other suitable material.
- TPU Thermoplastic Polyurethane
- FIG. 1 shows the shoe upper 10 fitted within the retention overlay 30 .
- the retention overlay 30 may be a lacing overlay, which includes multiple fingers 32 with lace loops 32 a at the ends of the fingers 32 and a single cord 34 . It is preferred for the fingers 32 to extend substantially vertically downward (about 90 degrees) toward the position where the sole 20 will be located.
- the fingers 32 and loops 32 a are formed as a PET webbing.
- the fingers 32 may be formed by a one-piece molded part formed of a flexible plastic, such as Thermoplastic Polyurethane (PTU), with the loops 32 a formed or molded at the ends of the fingers 32 .
- the loops 32 a may be stitched lace.
- the single cord 34 is laced through the loops 32 a.
- the cord 34 is provided in a substantially oval or round shape with the ends of the cord 34 extending to a rear of the shoe.
- FIG. 2 is a top view of the upper 20 showing the fingers 32 of the retention overlay 30 .
- the retention overlay 30 is attached to shoe laces 50 , which are used for tying the shoe on a user's foot.
- the shoes laces 50 may be standard shoe laces of any suitable material.
- the laces 50 may be made of Recycled PET or Paper.
- FIG. 3 is a bottom view of the upper 10 showing the fingers 32 and cord 34 of the retention overlay 30 .
- the fingers 32 are designed to be inserted into slots 22 within the sole 20 (not shown in this figure).
- the ends 34 a of the cord 34 function as a cinching cord to tighten the retention overlay 30 when the sole 20 is inserted within the retention overlay 30 .
- the ends 34 a of the cord 34 may be inserted within cord anchors 12 at the rear of the shoe upper 10 .
- the retention overlay 30 may be tightened around the upper 10 and sole 20 .
- the sole 20 includes slots 22 formed in a bottom surface and in the lateral sides of the sole.
- the sole 20 may be made of a typical midsole material, but preferably a sustainable material, for example, Sugar EVA, Recyclable PVC, Green dot blow molded resin, or blown latex with cork filler.
- the fingers 32 of the overlay 30 are inserted into the slots 22 at the lateral sides of the shoe.
- the fingers 32 may also be inserted into slots 22 at the front and rear sides of the shoe.
- the sole 20 is removably attached to the upper 10 via the retention overlay 30 , which includes the fingers 32 provided within the slots 22 formed in the sole 20 .
- the retention overlay 30 is tightened to removably secure the upper 10 to the sole 20 by inserting cord 34 a through cord anchors on the heel of the upper 10 and tying the ends 34 a of the cord 30 at the rear of the shoe.
- a lace lock or locking device may be used to secure the retention overlay 30 , as in the second embodiment discussed below.
- the overlay 30 of the first embodiment and the overlay 30 ′ of the second embodiment discussed below are both active system because the upper is locked into place once the retention overlay is cinched in place.
- FIG. 7 is a bottom view of the sole 20 in a state where the sole 20 is secured to the upper 10 via the retention overlay 30 .
- the slots 22 of the sole 30 include both slots 22 b for receiving the fingers 32 and a dedicated bottom slot 22 a within which the cord 34 is inserted.
- FIG. 8 is a rear view of the sole 20 secured to the upper 10 via the retention overlay 30 .
- the ends 34 a of the cord 34 function as a cinching cord to tighten the retention overlay 30 with both the sole 20 and upper 10 inserted within the retention overlay 30 .
- FIGS. 9-14 show a second embodiment of the shoe 200 .
- the shoe 200 includes an upper 10 ′, sole 20 ′, and retention overlay 30 ′.
- the retention overlay 30 ′ includes a net portion 36 that extends over an upper surface of the upper 10 .
- the net portion 36 may or may not be attached to the upper.
- the second embodiment also includes fingers 32 that are inserted within slots 22 in the sole 20 .
- This embodiment includes a cord 34 with cinching ends 34 a provides at a rear of the shoe. As in the first embodiment, the cord 34 is held within with lace loops 32 a at the ends of the fingers 32
- FIG. 10 is a lateral view of upper 10 ′ and retention overlay 30 ′.
- FIG. 11 is a lateral view of the upper 10 ′, sole 20 ′, and retention overlay 30 ′.
- the sole 20 ′ includes slots 22 within which the fingers 32 of the retention overlay 30 ′ are inserted.
- FIG. 12 is a bottom view of the upper 10 ′, sole 20 ′, and retention overlay 30 ′.
- the bottom of the sole 20 ′ includes slots 22 for receiving the fingers 32 of the retention overlay 30 and a dedicated bottom slot 22 a for receiving the cord 34 .
- FIG. 13 is a view showing the upper 10 ′, sole 20 ′, and retention overlay 30 ′ fully assembled.
- the retention overlay 30 ′ includes a net portion 36 that extends over an upper surface of the upper 10 .
- the net portion 36 is not attached to the upper 10 .
- FIG. 14 is a close-up view of the bottom of the sole 20 ′.
- the sole 20 ′ includes slots 22 for receiving the fingers 32 of the retention overlay 30 ′ and a dedicated bottom slot 22 a for receiving the cord 34 .
- FIG. 15 is a rear view of the sole 20 ′ secured to the upper 10 ′ via the retention overlay 30 ′.
- the ends 34 a of the cord 34 are tightened by a lace-lock mechanism 60 .
- the ends 34 a of the cord 34 are tightened by the lace lock mechanism 60 at a rear of the upper 10 ′.
- the cord 34 is inserted through cord anchors 12 , that are preferably provided as close to the location of the user's Achilles tendon as possible without causing irritation.
- FIGS. 16-18 show a third embodiment 300 , which also includes an upper 10 ′′, a sole 20 ′′, and a retention overlay 30 ′′.
- the retention overlay 30 ′′ is cage-shaped and made of a molded resin, such as thermoplastic polyurethane (TPU) or another plastic.
- TPU thermoplastic polyurethane
- the shoe also includes a shoe lace 50 connecting one side of the retention overlay 30 ′′ to another side of the retention overlay 30 ′′, as well as the user's foot.
- a semi-rigid strobel board 70 may be provided between the upper 10 ′′ and the sole 20 ′′ to provide pressure dispersion.
- FIG. 17 shows a rear view of the shoe 300 .
- a rear portion of the retention overlay 30 ′′ includes a snap fit member 90 that secures the retention overlay 30 ′′ around the upper 10 ′′ and sole 20 ′′.
- the snap fit member 90 includes a plurality of first snap fit portions 90 a that are snap fitted to a plurality of second snap fit portions 90 b to secure the retention overlay 30 ′′.
- the overlays 30 , 30 ′ of the first and second embodiments and are active systems in which the upper is locked into place once the retention overlay is cinched in place the overlay 30 ′′ of the third embodiment is a more passive system because the overlay 30 ′′ isn't fully tightened in place until the shoe laces are tightened.
- FIG. 18 shows a bottom view of the shoe 300 .
- the retention overlay 30 ′′ includes loop portions 38 that extend from the shoe upper 10 ′′ to the bottom of the sole 20 ′′. It is preferred for vertical parts of the loop portions 38 to extend substantially vertically downward (about 90 degrees) toward the sole 20 ′′, as shown in FIG. 16 .
- the loop portions 38 are secured to slot portions 122 provided at the bottom of the sole 20 ′′.
- the slot portions are areas of the sole 20 ′′ that surround protruding portions 110 of the sole 20 ′′.
- the sides of the protruding portions 110 include small recesses 110 a (i.e., voids in tread portion).
- the recesses 110 a act as key locks that center the loop portions 38 and prevent the loop portions 38 from slipping.
Abstract
A shoe including an upper, a sole including slots formed in a bottom of the sole, and retention overlay. The sole is removably attached to the shoe upper via the retention overlay, which is provided within the slots formed in the bottom of the sole.
Description
- This application claims priority from U.S. provisional application No. 63/172,866, filed Apr. 9, 2021, which is incorporated by reference in its entirety therein.
- This disclosure relates generally to shoe, and more particularly to a shoe in which a shoe sole is removably attached to a shoe upper.
- Conventionally, shoes have been manufactured by permanently fixing the shoe sole to the shoe upper. The sole is fixed to the upper by for example, stitching, cement, or other permanent assembly. However, with these construction types, assembly is difficult and time consuming. In addition the sole cannot be replaced if the sole has become worn or if the user wishes to change the tread pattern or other characteristics of the sole. Further, in a conventional shoe in which the parts are permanently fixed, at the eventual lifecycle of the shoe, it is difficult to recycle the shoe parts into their individual compounds.
- Patent literature document KR 2020-0048892 A discloses a shoe including an upper that is attached to a sole via a mesh. However, the mesh of KR '892 is unable to sufficiently hold the upper and sole together. Patent literature document KR 2019-0037427 discloses a shoe including an upper that is attached to a sole via a strap member. Like KR '892, the strap member of KR '427 is unable to sufficiently hold the upper and sole together.
- One aspect is a shoe including an upper, a sole including slots formed in a bottom of the sole, and retention overlay. The sole is removably attached to the shoe upper via the retention overlay, which is provided within the slots formed in the bottom of the sole. The retention overlay is secured or tightened at a rear of the shoe. The aspect may allow for a simple shoe assembly and may also allow for removable assembly and disassembly of the upper and sole of the shoe.
-
FIG. 1 shows a first embodiment of a shoe. -
FIG. 2 is a top view of the shoe upper. -
FIG. 3 is a bottom view of the shoe upper. -
FIG. 4 is a rear view of the shoe. -
FIG. 5 is a view showing the upper and sole. -
FIG. 6 is a side view of the shoe. -
FIG. 7 is a bottom view of shoe. -
FIG. 8 is a rear view of the shoe with the cord tightened to secure the upper and sole. -
FIG. 9 shows a second embodiment of the shoe. -
FIG. 10 is a lateral view of the shoe upper and retention overlay. -
FIG. 11 is a lateral view of the shoe. -
FIG. 12 is a bottom view of the shoe. -
FIG. 13 is a lateral view of the assembled shoe. -
FIG. 14 is a close-up view of the bottom of the shoe. -
FIG. 15 is a rear view of the shoe. -
FIG. 16 shows a third embodiment of the shoe. -
FIG. 17 is rear view of the shoe. -
FIG. 18 is bottom view of the shoe. - Detailed embodiments of the claimed structures are disclosed herein; however, it can be understood that the disclosed embodiments are merely illustrative of the claimed structures that may be embodied in various forms. Aspects of this disclosure may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of this disclosure to those skilled in the art. In the description, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments.
-
FIGS. 1-19 depict a first embodiment of ashoe 100, including an upper 10, a sole 20, and aretention overlay 30. The shoe may be made of any suitable materials, but are preferably made of sustainable materials. For example, the upper 10 may be made of any suitable material for example Knit Polyester, Nylon, Recycled PET, Lyocell, wool, cotton, or any suitable textile. Theretention overlay 30 also may be made of any suitable material, for example Recycled PET webbing, recycled content Thermoplastic Polyurethane (TPU), bio-based resin, hemp cording, or other suitable material. -
FIG. 1 shows the shoe upper 10 fitted within theretention overlay 30. Theretention overlay 30 may be a lacing overlay, which includesmultiple fingers 32 withlace loops 32 a at the ends of thefingers 32 and asingle cord 34. It is preferred for thefingers 32 to extend substantially vertically downward (about 90 degrees) toward the position where the sole 20 will be located. In the embodiment shown inFIG. 1 , thefingers 32 andloops 32 a are formed as a PET webbing. Alternatively, thefingers 32 may be formed by a one-piece molded part formed of a flexible plastic, such as Thermoplastic Polyurethane (PTU), with theloops 32 a formed or molded at the ends of thefingers 32. Theloops 32 a may be stitched lace. - The
single cord 34 is laced through theloops 32 a. Thecord 34 is provided in a substantially oval or round shape with the ends of thecord 34 extending to a rear of the shoe. -
FIG. 2 is a top view of the upper 20 showing thefingers 32 of theretention overlay 30. In this embodiment theretention overlay 30 is attached toshoe laces 50, which are used for tying the shoe on a user's foot. Theshoes laces 50 may be standard shoe laces of any suitable material. For example, thelaces 50 may be made of Recycled PET or Paper. -
FIG. 3 is a bottom view of the upper 10 showing thefingers 32 andcord 34 of theretention overlay 30. Thefingers 32 are designed to be inserted intoslots 22 within the sole 20 (not shown in this figure). Theends 34 a of thecord 34 function as a cinching cord to tighten theretention overlay 30 when the sole 20 is inserted within theretention overlay 30. - As shown in
FIG. 4 , theends 34 a of thecord 34 may be inserted withincord anchors 12 at the rear of the shoe upper 10. By tying theends 34 a of the cord, theretention overlay 30 may be tightened around the upper 10 and sole 20. - As shown in
FIG. 5 , the sole 20 includesslots 22 formed in a bottom surface and in the lateral sides of the sole. The sole 20 may be made of a typical midsole material, but preferably a sustainable material, for example, Sugar EVA, Recyclable PVC, Green dot blow molded resin, or blown latex with cork filler. Thefingers 32 of theoverlay 30 are inserted into theslots 22 at the lateral sides of the shoe. Thefingers 32 may also be inserted intoslots 22 at the front and rear sides of the shoe. - As shown in
FIG. 6 , the sole 20 is removably attached to the upper 10 via theretention overlay 30, which includes thefingers 32 provided within theslots 22 formed in the sole 20. Theretention overlay 30 is tightened to removably secure the upper 10 to the sole 20 by insertingcord 34 a through cord anchors on the heel of the upper 10 and tying the ends 34 a of thecord 30 at the rear of the shoe. Alternatively, a lace lock or locking device may be used to secure theretention overlay 30, as in the second embodiment discussed below. Theoverlay 30 of the first embodiment and theoverlay 30′ of the second embodiment discussed below are both active system because the upper is locked into place once the retention overlay is cinched in place. -
FIG. 7 is a bottom view of the sole 20 in a state where the sole 20 is secured to the upper 10 via theretention overlay 30. Theslots 22 of the sole 30 include bothslots 22 b for receiving thefingers 32 and adedicated bottom slot 22 a within which thecord 34 is inserted. -
FIG. 8 is a rear view of the sole 20 secured to the upper 10 via theretention overlay 30. The ends 34 a of thecord 34 function as a cinching cord to tighten theretention overlay 30 with both the sole 20 and upper 10 inserted within theretention overlay 30. -
FIGS. 9-14 show a second embodiment of theshoe 200. Like the first embodiment, theshoe 200 includes an upper 10′, sole 20′, andretention overlay 30′. As shown inFIG. 9 , in this embodiment, theretention overlay 30′ includes anet portion 36 that extends over an upper surface of the upper 10. Thenet portion 36 may or may not be attached to the upper. Like the first embodiment, the second embodiment also includesfingers 32 that are inserted withinslots 22 in the sole 20. This embodiment includes acord 34 with cinching ends 34 a provides at a rear of the shoe. As in the first embodiment, thecord 34 is held within withlace loops 32 a at the ends of thefingers 32 -
FIG. 10 is a lateral view of upper 10′ andretention overlay 30′. -
FIG. 11 is a lateral view of the upper 10′, sole 20′, andretention overlay 30′. The sole 20′ includesslots 22 within which thefingers 32 of theretention overlay 30′ are inserted. -
FIG. 12 is a bottom view of the upper 10′, sole 20′, andretention overlay 30′. As with the first embodiment, the bottom of the sole 20′ includesslots 22 for receiving thefingers 32 of theretention overlay 30 and adedicated bottom slot 22 a for receiving thecord 34. -
FIG. 13 is a view showing the upper 10′, sole 20′, andretention overlay 30′ fully assembled. Theretention overlay 30′ includes anet portion 36 that extends over an upper surface of the upper 10. Thenet portion 36 is not attached to the upper 10. -
FIG. 14 is a close-up view of the bottom of the sole 20′. The sole 20′ includesslots 22 for receiving thefingers 32 of theretention overlay 30′ and adedicated bottom slot 22 a for receiving thecord 34. -
FIG. 15 is a rear view of the sole 20′ secured to the upper 10′ via theretention overlay 30′. In this embodiment, the ends 34 a of thecord 34 are tightened by a lace-lock mechanism 60. The ends 34 a of thecord 34 are tightened by thelace lock mechanism 60 at a rear of the upper 10′. Thecord 34 is inserted through cord anchors 12, that are preferably provided as close to the location of the user's Achilles tendon as possible without causing irritation. -
FIGS. 16-18 show athird embodiment 300, which also includes an upper 10″, a sole 20″, and aretention overlay 30″. In this embodiment, theretention overlay 30″ is cage-shaped and made of a molded resin, such as thermoplastic polyurethane (TPU) or another plastic. The shoe also includes ashoe lace 50 connecting one side of theretention overlay 30″ to another side of theretention overlay 30″, as well as the user's foot. - A
semi-rigid strobel board 70 may be provided between the upper 10″ and the sole 20″ to provide pressure dispersion. -
FIG. 17 shows a rear view of theshoe 300. A rear portion of theretention overlay 30″ includes a snapfit member 90 that secures theretention overlay 30″ around the upper 10″ and sole 20″. The snapfit member 90 includes a plurality of first snapfit portions 90 a that are snap fitted to a plurality of second snapfit portions 90 b to secure theretention overlay 30″. While theoverlays overlay 30″ of the third embodiment is a more passive system because theoverlay 30″ isn't fully tightened in place until the shoe laces are tightened. -
FIG. 18 shows a bottom view of theshoe 300. Theretention overlay 30″ includesloop portions 38 that extend from the shoe upper 10″ to the bottom of the sole 20″. It is preferred for vertical parts of theloop portions 38 to extend substantially vertically downward (about 90 degrees) toward the sole 20″, as shown inFIG. 16 . - The
loop portions 38 are secured to slotportions 122 provided at the bottom of the sole 20″. The slot portions are areas of the sole 20″ that surround protrudingportions 110 of the sole 20″. - The sides of the protruding
portions 110 includesmall recesses 110 a (i.e., voids in tread portion). Therecesses 110 a act as key locks that center theloop portions 38 and prevent theloop portions 38 from slipping. - The descriptions of the various aspects and embodiments have been presented for purposes of illustration, but are not intended to be exhaustive or limited to the embodiments disclosed. Even though combinations of features are recited in the claims and/or disclosed in the specification, these combinations are not intended to limit the disclosure of possible implementations. In fact, many of these features may be combined in ways not specifically recited in the claims and/or disclosed in the specification. Although each dependent claim listed below may directly depend on only one claim, the disclosure of possible implementations includes each dependent claim in combination with every other claim in the claim set. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope of the described embodiments. The terminology used herein was chosen to best explain the principles of the embodiments, the practical application or technical improvement over technologies found in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (19)
1. A shoe, comprising:
an upper,
a sole including slots formed in a bottom of the sole, and a retention overlay,
wherein the sole is removably attached to the shoe upper via the retention overlay , which is provided within the slots formed in the bottom of the sole;
wherein the retention overlay is secured or tightened at a rear of the shoe.
2. The shoe of claim 1 , further comprising slots formed in lateral sides of the sole, wherein the retention overlay is provided within the slots formed in the lateral sides of the sole.
3. The shoe of claim 2 , further comprising slots formed in a rear side of the sole, wherein the retention overlay is provided within the slots formed in the rear sides of the sole.
4. The shoe of claim 3 , wherein the retention overlay extends to an upper surface of the upper.
5. The shoe of claim 1 , wherein the retention overlay comprises a fingers and a cord, the fingers extending from the upper to a bottom of the sole, the cord is attached to the fingers, and the cord and fingers are provided within the slots formed in the bottom of the sole.
6. The shoe of claim 5 , wherein each of the fingers includes a lace loop, and the cord is attached to the fingers via the lace loops.
7. The shoe of claim 5 , wherein the cord is tied at the rear of the shoe.
8. The shoe of claim 5 , further comprising a lace lock mechanism that tightens the cord at the rear of the shoe.
9. The shoe of claim 1 , wherein the retention overlay comprises a snap fit member at the rear of the shoe that secures the retention overlay.
10. The shoe of claim 9 , wherein snap fit member comprises a plurality of first snap fit portions that are snap fitted to a plurality of second snap fit portions.
11. The shoe of claim 9 , wherein the retention overlay comprises loop portions that extend from the shoe upper to the bottom of the sole, the loop portions are secured to the slot portions at the bottom of the sole.
12. The shoe of claim 11 , wherein the recesses are provided at sides of the slots formed in the bottom of the sole, the recesses act as key locks preventing the loop portions from slipping.
13. The shoe of claim 9 , further comprising lace connecting one side of the retention overlay to another side of the retention overlay.
14. The shoe of claim 14 , wherein the retention overlay is formed of a molded plastic resin.
15. A method of making a shoe, comprising:
providing an upper and a sole within a retention overlay, the sole including slots formed in a bottom of the sole, and
providing the retention overlay within the slots formed in the bottom of the sole; and
tightening or securing the retention overlay at a rear of the shoe.
16. The method of claim 15 , further comprising providing the retention overlay within slots formed in the lateral sides of the sole.
17. The method of claim 16 , further comprising providing the retention overlay within slots formed in the rear sides of the sole.
18. The method of claim 15 , wherein the retention overlay extends to an upper surface of the upper.
19. The method of claim 15 , wherein the retention overlay comprises a fingers and a cord, the fingers extending from the upper to a bottom of the sole, the cord is attached to the fingers, and the cord and fingers are provided within the slots formed in the bottom of the sole.
Priority Applications (1)
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US17/717,595 US20220322788A1 (en) | 2021-04-09 | 2022-04-11 | Shoe with sole removably attached to upper |
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US202163172866P | 2021-04-09 | 2021-04-09 | |
US17/717,595 US20220322788A1 (en) | 2021-04-09 | 2022-04-11 | Shoe with sole removably attached to upper |
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US17/717,595 Pending US20220322788A1 (en) | 2021-04-09 | 2022-04-11 | Shoe with sole removably attached to upper |
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