Regional dynamic lacing system

Abstract

An article of footwear (10) includes an upper (100) and a sole structure (200) attached to the upper. The article of footwear also includes a cord lock (302) disposed within the sole structure adjacent a bottom surface (204) of the lace structure. The article of footwear also includes a first cord (304) having a first portion (308) extending from the cord lock to a first anchor point on the upper and a second portion extending from the cord lock to a second anchor point on the upper. The article of footwear also includes a second cord (306) having a first portion (374) extending from the cord lock to the grip (388) and a second portion (376) extending from the cord lock to the grip, whereby the cord lock is operable to retract the first and second portions of the first cord when the first and second portions of the second cord are elongated.

Description

[0001] This application is a divisional application of the invention patent application filed on September 18, 2019, with application number 202211367515.6 and invention title "Regional Dynamic Tiling System".

[0002] Cross-reference to related applications

[0003] This application claims priority to U.S. non-provisional patent application No. 16 / 574,713, filed September 18, 2019, and U.S. non-provisional patent application No. 62 / 733,411, filed September 19, 2018, pursuant to 35 USC §119(e), the entire disclosure of which is incorporated herein by reference. Technical Field

[0004] The present invention generally relates to footwear articles having a dynamic lacing system for moving footwear between a tightened state and a loosened state. Background Technology

[0005] This section provides background information relating to this disclosure, which is not necessarily prior art.

[0006] Footwear typically comprises an upper and a sole structure. The upper can be formed from any suitable material (of various kinds) to receive, secure, and support the foot within the sole structure. The bottom portion of the upper, closest to the sole surface of the foot, is attached to the sole structure. The sole structure typically includes a layered structure extending between the outsole and a midsole, with the outsole providing abrasion resistance and ground grip, and the midsole positioned between the outsole and upper to provide cushioning for the foot.

[0007] The upper can work with laces, straps, or other fasteners to adjust the fit around the foot. For example, laces can be tightened to close the upper around the foot, and once the upper achieves the desired fit, it is tied. Each time you tie your shoes, you need to be careful to ensure the upper isn't too loose or too tight around the foot. Furthermore, laces may come undone or come undone during wear. While fasteners such as hook and loop fasteners are easier and faster than traditional lacing, these fasteners are prone to wear over time and require more care to achieve the desired tension when securing the upper to the foot.

[0008] Known automatic tightening systems typically include a tightening mechanism, such as a rotatable knob, which can be actuated to apply tension to one or more cords that interact with the upper to close the upper around the foot. While these automatic tightening systems can gradually increase the tension of one or more cords to achieve an ideal fit around the foot, they require the time-consuming task of actuating the tightening mechanism to properly tension the cords to secure the upper around the foot, and when the shoe needs to be removed from the foot, the wearer must simultaneously press a release mechanism and pull the upper away from the foot to release the cord tension. Furthermore, these automatic tightening systems provide a constant tension along the length of one or more cords, so that rotation of the rotatable knob results in uniform tightening of the entire cord. In cases where it may be desirable to tighten the first area of ​​the upper at a rate different from that of the second area, additional cords and tightening mechanisms must be combined and controlled separately.

[0009] Therefore, known automatic tightening systems lack suitable mechanisms to quickly and variably adjust the tension of the cord to close the upper around the foot and rapidly release the tension applied to the cord, allowing the upper to quickly loosen and be removed from the foot. Furthermore, the tightening mechanisms employed in these known automatic tightening systems need to be integrated with the outside of the upper, making it accessible to the wearer to adjust the fit around the foot, thus reducing the overall appearance and aesthetics of the shoe. Attached Figure Description

[0010] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this disclosure. In the drawings:

[0011] Figure 1 This is an inside front view of a footwear article according to the principles of the present invention, the footwear article having a cord lock movable between a locked state and an unlocked state, the locked state restricting the movement of the cord, the unlocked state allowing the movement of the cord;

[0012] Figure 2 yes Figure 1 A front view of the outside of a footwear item;

[0013] Figure 3A yes Figure 1 A partial top perspective view of footwear, where the footwear cover is hidden to reveal the internal components of the footwear;

[0014] Figure 3B yes Figure 1 A partial top-down perspective view of footwear, showing the protective cover and concealing the internal components of the footwear;

[0015] Figure 4 yes Figure 1 A bottom view of footwear, showing exposed cord locks running through the sole structure of the footwear;

[0016] Figure 5 This is an exploded view of a rope lock based on the principles of this invention;

[0017] Figure 6 yes Figure 5 A perspective view of the rope lock;

[0018] Figure 7 yes Figure 5 A top view of a rope lock, in which the internal components of the rope lock are hidden to show the construction of the rope lock's housing;

[0019] Figure 8 yes Figure 6 A magnified close-up view of the rope lock, showing the rope lock in the locked position; and

[0020] Figure 9 yes Figure 6 A magnified close-up view of the rope lock, showing the rope lock in the unlocked position.

[0021] Throughout the accompanying figures, corresponding reference numerals denote the corresponding parts. Detailed Implementation

[0022] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. Exemplary embodiments are provided so that this disclosure will be thorough and will fully convey the scope of the disclosure to those skilled in the art. Numerous specific details, such as examples of particular components, apparatus, and methods, are set forth to provide a thorough understanding of the construction of this disclosure. It will be apparent to those skilled in the art that specific details are not required, that the exemplary constructions may be implemented in many different forms, and that the specific details and exemplary constructions should not be construed as limiting the scope of this disclosure.

[0023] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” may also be intended to include the plural forms unless the context clearly indicates otherwise. The terms “comprising,” “including,” “containing,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. Unless expressly identified as the order of execution, the method steps, processes, and operations described herein should not be construed as necessarily having to be performed in the specific order discussed or shown. Additional or alternative steps may be employed.

[0024] When an element or layer is referred to as being “on top of” another element or layer, or “joined to,” “connected to,” “attached to,” or “linked to” another element or layer, it may be directly located, joined, connected, attached to, or linked to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as being “directly on” another element or layer, or “directly joined to,” “directly connected to,” “directly attached to,” or “directly linked to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” vs. “directly between,” “adjacent” vs. “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items.

[0025] The terms first, second, third, etc., may be used herein to describe various elements, components, regions, layers, and / or parts. These elements, regions, layers, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or part from another. Unless the context clearly indicates otherwise, terms such as “first,” “second,” and other numerical terms used herein do not imply order or sequence. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or part discussed below may be referred to as the second element, component, region, layer, or part.

[0026] One aspect of this disclosure provides a footwear article. The footwear article includes an upper defining an interior space and a sole structure attached to the upper, the sole structure having a top surface facing the interior space and a bottom surface formed on a side of the sole structure opposite the top surface that engages with the ground. The footwear article also includes a cord lock disposed within the sole structure adjacent to the bottom surface. The footwear article further includes a first cord having a first portion extending from the cord lock to a first anchor point on the upper and a second portion extending from the cord lock to a second anchor point on the upper. The footwear article also includes a second cord having a first portion extending from the cord lock to a gripping portion and a second portion extending from the cord lock to the gripping portion, the cord lock being operable to retract the first and second portions of the first cord when the first and second portions of the second cord are extended.

[0027] Embodiments of this disclosure may include one or more of the following optional features. In some embodiments, the lanyard lock is exposed for observation through an observation port located on the bottom surface of the sole structure. The observation port includes a hole that at least partially extends through at least one of the outsole portion and the midsole portion of the sole structure. Here, the observation port also includes a window comprising a transparent barrier extending across the hole. In some examples, the internal components of the lanyard lock are visible through the bottom surface of the sole structure.

[0028] In some constructions, the footwear article includes a first strap extending from a first end on the inside of the upper to a second end on the outside of the upper, the first end of the first strap receiving a first portion of a first cord, and the second end of the first strap receiving a second portion of the first cord. The footwear article may also include a second strap extending from a first end at the seam line on the outside of the footwear to a second end on the inside of the upper, the second end defining a loop and receiving the first portion of the first cord.

[0029] In some examples, the rope lock includes a spool, with a first rope wound around the spool in a first direction and a second rope wound around the spool in a second direction opposite to the first direction. A first portion of the first rope may include a first plurality of segments extending along the inside of the upper to a first anchor point on the inside of the upper, and a second portion of the first rope may include a second plurality of segments extending between the outside and inside of the upper to a second anchor point on the inside of the upper.

[0030] In some embodiments, a first anchor point is located on the inside of the upper in the midfoot region, adjacent to the seam line of the upper and sole structure, and a second anchor point is located at the distal end of a winglet disposed on the inside of the upper in the forefoot region. The winglet can extend from a proximal end attached to the seam line to a distal end adjacent to the instep region of the upper. The winglet may include a loop for receiving a second portion of the first cord, the loop receiving a first and a second segment of the second portion, and the second anchor point receiving a third segment of the second portion.

[0031] Another aspect of this disclosure provides a footwear article. The footwear article includes an upper defining an interior space and a sole structure attached to the upper, the sole structure having a top surface facing the interior space and a bottom surface formed on a side of the sole structure opposite the top surface that engages with the ground. The footwear article also includes a cord lock and a first cord disposed within the sole structure, the first cord having a first portion extending from the cord lock in a first direction and a second portion extending from the cord lock in a second direction, the first portion including a first plurality of segments routed along the inner side of the upper via at least one strap, and the second portion including a second plurality of segments routed along the outer side of the upper via at least one strap. The footwear article also includes a second cord extending from the cord lock, the second cord being operable to move the first cord toward a retracted state when tension applied to the second cord causes the second cord to be released from the cord lock.

[0032] Embodiments of this disclosure may include one or more of the following optional features. In some configurations, the cord lock is exposed for observation through the bottom surface of the sole structure. The observation opening may include a hole that at least partially extends through at least one of the outsole portion and the midsole portion of the sole structure. The observation opening may also include a window comprising a transparent barrier extending across the hole. The internal components of the cord lock are visible through the bottom surface of the sole structure.

[0033] In some examples, at least one strap includes a first strap extending from a first end disposed on the inside of the upper to a second end disposed on the outside of the upper, the first end of the first strap receiving a first portion of the first cord, and the second end of the first strap receiving a second portion of the first cord. Here, at least one strap may include a second strap extending from a first end attached to the outside of the footwear to a second end on the inside of the upper, the second end defining a loop and receiving the first portion of the first cord. In other examples, the cord lock includes a spool, the first cord wound around the spool in a first direction, and the second cord wound around the spool in a second direction opposite to the first direction.

[0034] In some embodiments, a first portion of the first cord extends to a first anchor point on the inside of the upper, and a second portion of the first cord extends to a second anchor point on the inside of the upper. The first anchor point may be located on the inside of the upper in the midfoot region, adjacent to the seam line of the upper and sole structure, and the second anchor point may be located at the distal end of a winglet located on the inside of the upper in the forefoot region. The winglet may extend from a proximal end attached to the seam line to a distal end adjacent to the instep region of the upper. The winglet may include a loop for receiving the second portion of the first cord, the loop receiving a first segment and a second segment of the second portion, and the second anchor point receiving a third segment of the second portion.

[0035] Details of one or more embodiments of this disclosure are set forth in the following drawings and description. Other aspects, features, and advantages will become apparent from the specification, drawings, and claims.

[0036] Reference Figure 1 An example of a footwear article 10 including a system providing variable tension is disclosed. In some embodiments, the footwear article 10 includes an upper 100 and a sole structure 200 attached to the upper 100. The footwear article 10 also includes a tensioning system 300 integrated into at least one of the upper 100 and the sole structure 200. The tensioning system 300 includes a cord lock 302 and a pair of cords 304, 306, which cooperate with the cord lock 302 to move the footwear article 10 between a tightened state and a loosened state, as detailed below. In particular, the cords 304, 306 may be in the tightening direction D. T The upper 100 is moved upwards to move the footwear 10 to a tightened state. In some embodiments, the upper 100 and the sole structure 200 cooperate to provide channels and guides for guiding portions of the ropes 304, 306 through the rope lock 302. The rope lock 302 is configured to selectively secure the ropes 304, 306 in the tightened state.

[0037] Footwear 10 can be divided into one or more regions. These regions may include a forefoot region 12, a midfoot region 14, and a heel region 16. The forefoot region 12 may correspond to the toes and joints connecting the metatarsals and phalanges of the foot. The forefoot region 12 may be further subdivided into a toe portion 12T corresponding to the phalanges and a ball-of-the-foot portion 12B corresponding to the metatarsals. The midfoot region 14 may correspond to the arch region of the foot, while the heel region 16 may correspond to the posterior portion of the foot, including the calcaneus. Footwear 10 may also include a front end 18 corresponding to the foremost point of the forefoot region 12 and a rear end 20 corresponding to the rearmost point of the heel region 16. Figure 4 The longitudinal axis AF of the footwear 10 extends along the length of the footwear 10 from the front end 18 to the rear end 20, and generally divides the footwear 10 into an outer side 24 and an inner side 22. Therefore, the outer side 24 and the inner side 22 correspond to opposite sides of the footwear 10 and extend through regions 12, 14, and 16, respectively.

[0038] The upper 100 includes an inner surface defining an interior space 102 configured to receive and secure a foot for support on the sole structure 200. An ankle opening 104 in the heel region 16 provides access to the interior space 102. For example, the ankle opening 104 may receive a foot to secure it within the space 102 and facilitate entry and exit of the foot from the interior space 102. The upper 100 may include a tongue-like portion 106 extending between the outer side 24 and the inner side 22 and covering the interior space 102. The upper 100 may include one or more gripping features 108 formed adjacent to the ankle opening 104 for pulling the footwear 10 onto and off the foot. The upper also includes a heel stabilizer 110 extending from the inner side 22 to the outer side 24 around the rear end 20 of the upper 100.

[0039] The upper 100 may be formed of one or more materials stitched or bonded together to form the internal space 102. Suitable materials for the upper 100 may include, but are not limited to, mesh, textiles, foam, leather, and synthetic leather. An exemplary upper 100 may be formed of a combination of one or more generally inelastic or non-stretchable materials disposed in different areas of the upper 100 and one or more generally elastic or stretchable materials to facilitate movement of the upper 100 between a tightened and relaxed state. One or more elastic materials may include any combination of one or more elastic fabrics, such as, but not limited to, spandex, elastic fibers, rubber, or neoprene. One or more inelastic materials may include any combination of one or more of thermoplastic polyurethane, nylon, leather, vinyl, or another material / fabric that does not impart elasticity. Figure 3A and 3B As best shown, the upper may be provided with one or more shields 112 and / or covers 114 for concealing various components of the tensioning system 300. For example, in Figure 3AIn the image, the upper 100 is shown without the visor 112 and cover 114, thus exposing at least one of the straps of the tensioning system 300. In contrast, Figure 3B A mesh cover 112 is shown covering the forefoot area 12 of the upper 100, while the tongue portion 106 of the upper 100 may be provided with a cover 114. In some examples, the cover 114 can be removed by the user to expose the tensioning system 300.

[0040] As described above, the sole structure 200 is attached to the upper 100 and defines the ground contact surface 26 of the footwear 10. The sole structure 200 includes a top surface 202 and a bottom surface 204, the bottom surface 204 being formed on the side of the sole structure 200 opposite to the top surface 202. The bottom surface 204 of the sole structure 200 defines the ground contact surface 26 of the shoe. The sole structure 200 also includes a peripheral side surface 206 extending between the top surface 202 and the bottom surface 204, such that the peripheral side surface 206 defines the outer periphery of the sole structure 200. The sole structure 200 extends continuously from a first end 208 at the front end 18 of the footwear 10 to a second end 210 at the rear end 20 of the footwear 10. As mentioned throughout the application and the appended claims, the sole structure 200 and the upper 100 define a “meeting line” 28 at which the peripheral side surface 206 and the upper 100 intersect when the footwear 10 is assembled. The bite line 28 may extend along the footwear 10 from the first end 208 to the second end 210 on either the outer or inner side, and may also extend around the first end 208, the second end 210, or both.

[0041] As described in more detail below, the sole structure 200 is configured to house a portion of the tensioning system 300 and may include one or more cavities or conduits formed therein. In the illustrated example, the sole structure 200 includes a hole or cavity 212 formed in the sole surface 204. The cavity 212 is configured to receive a lanyard 302 within the sole structure 200. In some examples, the lanyard 302 may be encapsulated within the sole structure 200. Figure 4 As shown in the example, cavity 212 can be configured to receive lanyard 302 such that a portion of lanyard 302 is exposed or visible through the bottom surface 204 of sole structure 200. For example, lanyard 302 may be recessed from the bottom surface 204 of sole structure 200 such that a portion of cavity 212 formed between lanyard 302 and bottom surface 204 defines an observation port through which lanyard is exposed. Here, cavity 212 or lanyard 302 may include a transparent barrier 214 that provides a window 214 for access to the interior of lanyard 302. Thus, the internal components of lanyard 302 are visible through barrier 214, allowing a user to observe the operation of lanyard 302.

[0042] As described above, the tensioning system 300 typically includes a first rope 304 and a second rope 306, which cooperate with each other via a rope lock 302 to selectively switch the upper 100 between a tightened and a slack state. As shown, the first rope 304 is routed along the upper 100 via multiple guides and straps, thereby allowing the user to apply a tension force F to the second rope 306. T The cord is passed through a lock 302 to a first cord 304, and distributed along the upper 100 via the first cord 304 to tighten the upper 100 along the foot. As shown, the first cord 304 can be described as comprising a first portion 308 and a second portion 310 connected to each other via the lock 302. The first portion 308 extends from the lock 302 to an end 312, which is anchored to the upper 100 in the midfoot region 14. Similarly, the second portion 310 extends from the lock 302 to an end 314, which is anchored to the upper 100 in the forefoot region 12. As described below, the first portion 308 of the first cord 304 can be described as comprising a plurality of first segments 316a-316e wound along the upper 100 between the lock 302 and the end 312 of the first portion 308. Similarly, the second part 310 can be described as including a second plurality of segments 318a-318f that are wired along the upper 100 between the cord lock 302 and the end 314 of the second part 310.

[0043] As described above, the tensioning system 300 includes a plurality of guides, loops, and straps through which a first portion 308 and a second portion 310 of the first rope 304 passes to convert the tension of the first rope 304 into a tightening force along the upper 100. A first strap 320 extends across the tongue portion 106 adjacent to the ankle opening 104, from a first end 322 on the inner side 22 of the upper 100 to a second end 324 on the outer side 24 of the upper 100. More specifically, the first end 322 of the first strap 320 is located on the inner side 22 of the upper 100, adjacent to the tongue portion 106, and between the midfoot region 14 and the heel region 16. Similarly, the second end 324 of the first strap 320 is located on the outer side 24 of the upper 100, adjacent to the tongue portion 106, and between the midfoot region 14 and the heel region 16. The first end 322 of the first strap 320 defines a first loop 326 that receives a portion of a first portion 308 of the first cord 304 on its inner side 22, and the second end 324 of the first strap 320 defines a second loop 328 that receives a portion of a second portion 310 of the first cord 304 on its outer side 24. As described below, when the first cord 304 is tightened, the loops 326 and 328 of the first strap 320 are pulled toward the sole structure 200 to tighten the first strap 320 onto the tongue portion 106.

[0044] Except for passing the first and second portions 308, 310 of the first rope 304 through the loops 326, 328 for wiring, the first strap 320 is completely separated from the upper 100. Thus, the first strap 320 can be tightened on the upper 100 by the first and second portions 308, 310 of the first rope 304 to secure the upper 100. The upper 100 may include one or more guides 330 for maintaining the orientation and position of the first strap 320 across the upper 100. In the illustrated example, the upper 100 includes a pair of guides 330, one of which is positioned at a first end 322 of the first strap 320, and the second of which is positioned at a second end 324 of the first strap. Therefore, the guides 330 receive the ends 322, 324 of the first strap 320. In one example, each guide 330 is formed by sewing the opposite ends of the fabric strap to the upper 100 to form a channel 332 between the strap and the upper 100. However, in other examples, the guide 330 may be formed of a rigid material and / or may integrally define the channel 332.

[0045] The tensioning system 300 also includes a second band 334 extending from at least one proximal end 336 to a distal end 338. For example... Figure 3A As best shown, the second band 334 extends from the first proximal end 336a of the bite line 28 attached to the outer side 24 of the forefoot region 12, to the free-hanging distal end 338 of the tongue portion 106 adjacent to the inner side 22 in the midfoot region 14, and then descends back to the second proximal end 336b of the bite line 28 attached to the outer side 24 in the heel region 16. Thus, the second band 334 turns from the first proximal end 336a to the second proximal end 336b at the distal end 338 to form a loop 340 at the distal end 338. As discussed in more detail below, a portion of the first portion 308 of the first cord 304 passes through the loop 340 of the second band 334, such that when the first portion 308 of the first cord 304 is in the tightening direction D... T When the upper is pulled, the loop 340 of the second band 334 is pulled down along the inner side 22 to tighten around the upper 100.

[0046] Reference Figure 1 The tensioning system 300 includes an inner flap 342 having a proximal end 344 attached to the occlusion line 28 and a free-hanging distal end 346 on the inner side 22 adjacent to the tongue portion 106 of the upper 100. As shown, the proximal end 344 of the inner flap 342 extends along the occlusion line 28 from the toe portion 12T to the midfoot region 14. The width WMF of the inner flap 342 gradually decreases from the proximal end 344 to the distal end 346, such that the width WMF of the inner flap 342 at the distal end 346 is smaller than the width WMF of the inner flap 342 at the proximal end 344.

[0047] The distal end 346 of the inner flap 342 may include a pair of protrusions 352, 354 separated from each other by a gap 356. Specifically, the distal end 346 includes a front protrusion 352 disposed adjacent to the forward-facing edge of the inner flap 342 and a rear protrusion 354 disposed adjacent to the rearward-facing edge of the inner flap 342. The protrusions 352, 354 are movable independently relative to each other. As shown, the rear protrusion 354 includes a rope guide 358 configured to receive a portion of a second portion 310 of a first rope 304, while the end 312 of the second portion 310 of the first rope 304 is secured to the front protrusion 352 at a first anchoring portion 360.

[0048] Reference Figure 2 The outer side 24 of the shoe 10 includes an outer wing 362, which has a proximal end 364 attached to the bite line 28 and a freely dangling distal end 366 of the tongue portion 106 in the ball portion 12B adjacent to the forefoot region 12. Like the inner wing 342, the width WLF of the outer wing 362 gradually decreases from the proximal end 364 to the distal end 366. The outer wing 362 includes a cord guide 368 disposed near the distal end 366. As described below, a second portion 310 of the first cord 304 is routed through the cord guide 368 of the outer wing 362. Therefore, because the distal end 366 is independent of the upper 100, when the first cord 304 is in the tightening direction D... T When moving, the distal end 366 can be pulled inward along the upper 100 to the inside 22.

[0049] As described in more detail below with respect to the wiring of the first and second portions 308, 310 of the first rope 304, the tensioning system 300 includes a plurality of rope guides 370 disposed at multiple locations along the upper 100 for wiring the first rope 304 between the aforementioned straps 320, 334 and flaps 342, 362. In the illustrated example, the rope guides 370 are formed of fabric or mesh loops, defining channels for slidably receiving the first rope 304 passing therethrough. In some examples, the inner surface of the rope guides 370 is lined or coated with a low-friction material, such as a lubricating polymer (e.g., polytetrafluoroethylene), which facilitates movement of the first rope 304 therein.

[0050] Furthermore, the tensioning system 300 may include one or more conduits 372 formed through the sole structure 200 for guiding the ends of the first rope 304 and the second rope 306 between the rope lock 302 and the upper 100, such as Figure 4 As shown in the best example.

[0051] Reference Figure 1The first portion 308 of the first cord 304 is routed along the inner side 22 of the upper 100. More specifically, the first portion 308 of the first cord 304 extends from the cord lock 302 in the sole structure 200, passes upward through the engagement line 28 on the inner side 22, and is guided by a series of cord guides 370 through each of the first loop 326 of the first strap 320 and the loop 340 of the second strap 334. The first portion 308 of the first cord 304 terminates at an end 312, which is anchored to the inner side 22 of the upper 100, adjacent to the engagement line 28 in the midfoot region 14.

[0052] As described above, the first portion 308 of the first rope 304 can be described as comprising multiple segments 316. Figure 1 As best shown, the first segment 316a of the first portion 308 extends from a first end at the bite line 28 in the midfoot region 14 to a second end in the heel region 16, spaced apart from the bite line 28. As shown, the second end of the first segment 316a is defined where the first portion 308 of the first cord 304 passes through the first cord guide 370a. The second segment 316b of the first cord 304 extends from the first cord guide 370a to the first loop 326 of the first band 320, wherein the first portion 308 extends through the first loop 326 to the third segment 316c. The third segment 316c then extends from the first loop 326 of the first band 320 to the second cord guide 370b, which is attached to the upper 100 above and in front of the first cord guide 370a. Then, the first portion 308 is guided by the second rope guide 370b to a fourth segment 316d, which extends upward from the second rope guide 370b to the upper 100, reaching the loop 340 of the second strap 334, adjacent to the tongue portion 106 in the midfoot region 14. The first portion 308 is then guided by the loop 340 of the second strap 334 to a fifth segment 316e, which extends from the loop 340 to the end 312 of the first portion 308 adjacent to the bite line 28.

[0053] As shown in the figure, each of the first rope guide 370a, the second rope guide 370b, and the end 312 can be secured to the upper 100 adjacent to the edge of the heel stabilizer 110. Because the rope guides 370a, 370b, and the end 312 are secured to the upper 100, when the first rope 304 is in the tightening direction D... T During movement, segments 316a-316e of the first part 308 pull the first loop 326 of the first belt 320 and the loop 340 of the second belt 334 toward the heel stabilizer 110, as described in more detail below.

[0054] Reference Figure 2The second portion 310 of the first cord 304 is generally routed along the outer side 24 of the upper 100 and the lower region of the tongue portion 106. More specifically, the second portion 310 of the first cord 304 extends from the cord lock 302 in the sole structure 200, passes upward through the interlocking line 28 on the outer side, and is guided by a series of cord guides 370 through each of the second loop of the first band 320, the cord guide 358 of the inner wing 342, and the cord guide 36 of the outer wing 362. The second portion 310 of the first cord 304 terminates at an end 314, which is anchored to the rear protrusion 352 at the distal end 346 of the inner wing 342.

[0055] As described above, the second portion 310 of the first rope 304 can be described as comprising multiple segments 318. Figure 2 As best shown, the first segment 318a of the second portion 310 extends from a first end at the bite line 28 of the midfoot region 14 to a second end of the heel region 16, spaced apart from the bite line 28. As shown, the second end of the first segment 318a is defined where the second portion 310 of the first cord 304 passes through the third cord guide 370c. The second segment 318b of the second portion 310 extends from the third cord guide 370c to the second loop 328 of the first band 320, whereby the second portion 310 is guided to the third segment 318c via the second loop 328. The third segment 318c then extends from the second loop 328 of the first band 320 to a fourth cord guide 370d, which is attached to the upper 100 above the first segment 318a and in front of the third cord guide 370c. Then, the second portion 310 is guided by the fourth rope guide 370 to the fourth segment 318d, which extends from the fourth rope guide 370d on the outer side 24 and crosses the tongue portion 106 to reach the rope guide 358 on the rear protrusion 354 of the inner wing 342. The second portion 310 is then guided through the rope guide 358 of the rear protrusion 350 to the fifth segment 318e, which extends from the rope guide 358 of the rear protrusion 350 and crosses the tongue portion 106 to reach the rope guide 368 of the side wing 362. The second portion 310 is then guided through the rope guide 368 of the side wing 362 to reach the sixth segment 318f, which extends from the rope guide 368 and crosses the upper of the shoe upper 100 to reach the end 314. Figure 3A The wiring of the fourth segment 318d, the fifth segment 318e, and the sixth segment 318f can be clearly seen in the figure. As shown in the figure, the end 314 of the second part 310 is anchored to the front protrusion 352 through the anchor point 360.

[0056] As shown in the figure, each of the third rope guide 370c and the fourth rope guide 370d can be fixed to the upper 100 adjacent to the edge of the heel stabilizer 110. Because the rope guides 370c and 370d are fixed to the upper 100, when the first rope 304 is in the tightening direction D... T As the second section 310 moves upward, the second and third segments 318c, 318d of the second part 310 will pull the second loop 328 downward toward the heel stabilizer 110, as described in more detail below. Simultaneously, as the first rope moves in the tightening direction, the fourth segment 318d, the fifth segment 318e, and the sixth segment 318f will tighten at the top of the upper 100, causing the distal ends 346, 366 of the wings 342, 362 to pull toward each other, thereby tightening the internal space 102 surrounding the foot.

[0057] Similar to the first cord 304, the second cord 306 can be described as comprising a first portion 374 extending from a first side of the cord lock 302 to the inner side 22 of the footwear 10 and a second portion 376 extending from a second side of the cord lock 302 to the outer side 24 of the footwear 10. In the illustrated example, the first portion 374 and the second portion 376 cooperate to define a continuous loop extending around the upper 100, more specifically, on the tongue portion 106 of the upper 100. Although substantially continuous, the first portion 374 can be described as extending to a first end 378, and the second portion 376 can be described as extending to a second end 380. Here, the first end 378 and the second end 380 overlap each other to form a continuous second cord 306. However, in other examples, the first end 378 and the second end 380 may be separate from each other and / or may be connected to each other by an intermediate member.

[0058] like Figure 3A As best shown, the second cord 306 extends around the tongue portion 106 near the ankle opening 104 (i.e., the area near the instep of the wearer). Figure 1 As shown, a portion of the first section 374 of the second rope 306 can be guided through the first channel 382 formed to pass through the inner side 22 of the upper 100. Similarly, a portion of the second section 376 of the second rope can be guided through the second channel 384 formed to pass through the outer side 24 of the upper 100.

[0059] The portion of the second cord 306 extending around the tongue portion 106 can be enclosed within one or more sheaths 386. Each sheath 386 may further be provided with a sheath 386 that allows each portion 374, 376 of the sheath 386 and the second cord 306 to move in a direction away from the upper 100 by means of a tightening force FT (i.e., when the second cord 306 is in the tightening direction D). TDuring upward movement, material and / or fabric are formed that moves from a relaxed state to a stretched or expanded state. When the tightening force FT is removed, the material and / or fabric of the sheath 386 automatically causes the sheath 36 to shrink to a relaxed state and adapt to the bundling of the second rope 306 therein.

[0060] In the example shown, a separate tightening grip 388 is operably attached to the sheath 386 at an attachment location near the tongue portion 106, allowing the user to apply a tightening force FT to pull the second cord 306 away from the upper 100, thereby causing each of the second cord 306 and the first cord 304 to tighten in the tightening direction D. T The movement is upward. Other configurations may include one or more tightening grips 388 operatively connected to other portions of the sheath 386 along the length of the second rope 306. In some embodiments, the tightening grips 388 are omitted, and the sheath 386 is gripped directly by the user.

[0061] Refer again Figure 1 The rope lock 302 may further include a release mechanism 390 operable to switch the rope lock 302 from a locked state to an unlocked state, allowing the ropes 304 and 306 to move in both directions D. T D F The release mechanism 390 may include a release line or cord 390 that, when pulled, is operable to move the lanyard lock 302 from a locked state to an unlocked state. The release line 390 may extend from a first end attached to the lanyard lock 302 through one of the channels 382, ​​384 formed by the upper 100 to a distal end exposed from the upper 100, allowing a user to grasp and pull the release line 390 to move the locking device 350b from the locked state to the unlocked state. In some examples, the distal end of the release line 390 includes a loop 392 and / or a gripping feature remote from the lanyard lock 302 to allow the user to grasp and pull the release line 390 when they wish to move the lanyard lock 302 to the unlocked state and / or release the lanyard lock 302 from the unlocked state. Figure 1 A loop 392 of a release line 390 extending from a first channel 382 on the inner side 22 of the upper 100 is shown.

[0062] As described above, the locking device or rope lock 302 can be disposed within the sole structure 200 of the footwear 10 and can be biased into a locked state to restrict the ropes 304, 306 in their respective release directions D. LThe movement is on the surface. In some examples, the sole structure 200 supports the lanyard lock 302. A first rope 304 and a second rope 306 approach and pass through the housing 400 of the lanyard lock 302 from opposite directions. In one configuration, the housing 400 has a generally square shape, is about 3 inches (3 in.) long, 3 inches (3 in.) wide, and includes a thickness of about 1 inch (1 in.). In some configurations, when locked, the lanyard lock 302 allows the ropes 304, 306 to move in the tightening direction D. T Move upwards. Release line 390 can switch rope lock 302 from the locked state to the unlocked state, thereby allowing ropes 304 and 306 to move in both directions. T D F Move upwards.

[0063] Figure 5 An exploded view of the rope lock 302 is provided, showing a housing 400 defining a cavity 402 configured to rotatably receive a spool 404, a first pawl 406, and a second pawl 408. The rope lock 302 may include a cover 410 releasably fastened to the housing 400 to prevent access to the cavity 402 when the cover 410 is fastened to the housing 400, and to allow access to the cavity 402 when the cover 410 is removed from the housing 400. One or more fasteners 412 may extend through the cover 410 and be fastened to a threaded hole 414 in the housing 400 to secure the cover 410 to the housing 400.

[0064] The housing 400 defines a plurality of retainer slots 416, each retainer slot 416 being configured to receive and support a corresponding rope retainer 418 through which ropes 304, 306 are introduced into a cavity 402 of the housing 400. The housing 400 can support a plurality of rope retainers 418 such that the ends of ropes 304, 306 each extend through a corresponding rope retainer 418.

[0065] As described in more detail below, the housing 400 may further include a retaining wall 420 disposed within the cavity 402. The retaining wall 420 is configured to cooperate with the first pawl 406. The retaining wall 420 may further include a tactile groove 422 configured to receive one or more tactile domes 424. (See below for further details.) Figure 6-9 In more detail, the first pawl 406 can engage the tactile dome 424 to provide a click or other sound indicating that the spool 404 has changed position relative to the housing 400 and / or the rope lock 302 has changed from a locked state to an unlocked state.

[0066] Figure 7A top view of the housing 400 is provided, showing a pair of mounting flanges 426, 428 disposed on opposite sides of the housing 400. The mounting flanges 426, 428 can rest on the inner surface of the cavity 212 of the sole structure 200 to mount the lanyard 302 within the sole structure 200. Optionally, the flanges can be attached to a strobel of the upper 100. The strobel can be any support structure forming the foot portion of the footwear 10, which is at least disposed between the sole structure 200 and the space 102. In some examples, adhesives such as adhesives and / or epoxy resins can be applied to the contact surfaces of the flanges 426, 428 and / or the inner surface of the cavity 212 of the sole structure 200 to attach the housing 400 within the cavity 212. Additionally or alternatively, mounting flanges 426, 428 may define one or more mounting holes 430 formed therethrough and are configured to receive fasteners (not shown) for mounting the housing 400 to the sole structure 200.

[0067] Figure 7 The housing 400 is shown with other components of the pawls 406, 408, ropes 304, 306, and rope lock 302 removed to expose an elongated channel 432 formed through the housing 400. As discussed in more detail below, the elongated channel 432 aligns with the attachment point of the first pawl 406 and allows the release line 390 to pass under the housing 400 and upward through a feed groove 434 defined by the mounting flange 428. The mounting flange 428 also defines a cutout region 435 near the feed groove 434 to provide more clearance for the release line 390 (and / or the conduit 372 surrounding the release line 390) to extend from the housing 400. The mounting flanges 426, 428 may define a lip around the periphery of the housing 400 such that the housing 400 is spaced from the mounting surface of the cavity 212 or last, allowing the release line 390 to be routed between the housing 400 and the mounting surface of the cavity 212 or last. Therefore, the release line 390 can extend freely beneath the housing 400 between the elongated channel 432 and the feed groove 434. In some examples, the feed groove 434 has curved edges to prevent the release line 390 from being jammed or restricted by the housing 400.

[0068] Now for reference Figure 6 The spool 404 is supported within the cavity 402 of the housing 400 and can rotate relative to the housing 400. In some examples, when the ropes 304 and 306 are in the tightening direction D... T When moving upward, the spool 404 is relative to the housing 400 in the first direction D S1 Rotate upwards, and when ropes 304 and 306 are in the release direction D. L When moving upward, the spool 404 is in the opposite second direction D relative to the housing 400. S2The spool 404 includes a first channel or annular groove 436 configured to collect a portion of the first rope 304 and a second channel or annular groove 438 configured to collect a portion of the second rope 306. The spool 404 may include one or more anchoring grooves 440 formed through a partition wall that separates the channels 436, 438 for securing the rotational position of each rope 304, 306 relative to the spool 404.

[0069] The rope lock 302 also includes a ratchet mechanism 442 associated with the spool 404 and having a plurality of teeth 444 circumferentially positioned around an axis of the ratchet mechanism 442 and projecting radially inward therefrom. In some embodiments, the ratchet mechanism 442 is integrally formed on the inner peripheral wall of the spool 404 such that the plurality of teeth 444 project radially inward from channels 436, 438. In other examples, the ratchet mechanism 442 is supported to rotate together with the spool 404.

[0070] A first pawl 406 is disposed within a cavity 402 of the housing 400 and configured to cooperate with a ratchet mechanism 442 to selectively prevent and allow rotation of the spool 404, and thus prevent and allow movement of the ropes 304, 306. In some examples, the first pawl 406 includes one or more teeth 445 configured to selectively engage with a plurality of teeth 444 of the ratchet mechanism 442. In some embodiments, the first pawl 406 includes a first pawl shaft 446 configured to support the first pawl 406 within the housing 400 to allow the first pawl 406 to rotate about a first pawl rotation axis A relative to the housing 400. FP Rotate.

[0071] The first pawl spring 448 can be operably connected to the first pawl shaft 446 and the retaining wall 420 disposed in the cavity 402 of the housing 400, so as to be in the first direction D FP1 Rotation axis A around the pawl FP The first pawl 406 is biased. When the spool 404 is received by the cavity 402 to surround the housing 400, the first pawl rotates along axis A. FP It can be substantially parallel to the axis of rotation of the spool 404. Therefore, the first pawl spring 448 can interact with the retaining wall 420 and the first pawl 464 to apply a biasing force, which causes the first pawl 406 to rotate in the first direction D. FP1 Rotation axis A around the pawl FP It pivots and engages with multiple teeth 444 of the ratchet mechanism 442, thereby causing the rope lock 302 to operate in the locked state to restrict the ropes 304, 306 in the release direction D. L The movement on the surface.

[0072] Figure 8 and Figure 9 Top views of the first pawl 406 of the rope lock 302 are shown. The first pawl 406 defines a first receiving surface 450 configured to support a first pawl spring 448. A first pawl shaft 446 protrudes from the first receiving surface 450 in a direction substantially perpendicular to the first receiving surface 450. The first pawl shaft 446 may be integrally formed with the first pawl 406. The first pawl 406 also defines a second receiving surface 452 configured to support a second pawl spring 464. A hole 454 is formed through the second receiving surface 452 and configured to receive the second pawl shaft 462. An anchor post 458 may protrude from the receiving surfaces 450 and 452 in a direction substantially parallel to the first pawl shaft 446. The anchor post 458 may define a hole 460 to provide an attachment position for attaching a first end 354d of the release line 390 to the anchor post 458. The anchor post 458 may be integrally formed with the first pawl 406.

[0073] refer to Figure 6 The second pawl shaft 462 rotatably attaches the second pawl 408 to the first pawl 406, allowing the second pawl 408 to rotate about the second pawl rotation axis A relative to the first pawl 406 and the housing 400. SP Rotation. The second pawl rotates along axis A. SP It can be basically parallel to the first pawl's axis of rotation A FP The axis of rotation of the spool 404 extends from it. In some examples, the second pawl 408 is associated with a second pawl spring 464, which is configured to allow the spool 404 to rotate in the second direction D when the first pawl 406 disengages from the teeth 444 of the ratchet mechanism 442. S2 During rotation, the biased second pawl 408 engages with the control surface 466, which is associated with the inner circumference of the spool 404.

[0074] Figure 6 A perspective view of the rope lock 302 in a locked state is provided, wherein the first pawl tooth 445 of the first pawl 406 engages the tooth 444 of the ratchet mechanism 442 to selectively restrict the spool 404 along the second direction D. S2 Rotation thus restricts ropes 304 and 306 along their respective release directions D. L Movement. In some examples, multiple teeth 444 are angled to allow the spool 404 to move along the first direction D when the teeth 445 of the first pawl 406 engage with the teeth 444 of the ratchet mechanism 442. S1 Rotation, thereby responding to the tightening force F applied to the tightening gripper 388. T Allow the first rope 304 to move in the tightening direction D T Move and allow the second rope 306 to move in the tightening direction D T move.

[0075] When the spool 404 is along the first direction D S1 During rotation, the second rope 306 unwinds from the second channel 438 of the spool 404, while the first channel 436 of the spool 404 moves along the first direction D with the spool 404. S1 The first rope 304 retracts while rotating. Therefore, ropes 304 and 306 retract in their respective tightening directions D. T The movement causes the effective length of the second rope 306 to increase, while simultaneously causing the effective length of the first rope 304 to decrease, thereby moving the upper 100 to a tightened state to close the internal space 102 surrounding the user's foot. Here, during each successive engagement between the first pawl 406 (e.g., the first pawl tooth 445) and the tooth 444 of the ratchet mechanism 442, the second rope 306 moves in the tightening direction D. T The upper 100 moves gradually upwards, thereby gradually increasing the tension applied to the first and second portions 308, 310 of the first rope 304 to tighten the fit of the inner hollow 102 around the foot as the upper 100 moves to the tightened state. More specifically, because each of the first portion 308 and the second portion 310 of the first rope 304 is connected to and disposed therein in the first channel 436 of the spool 404, each of the portions 308, 310 will be wound and unwound by the spool 404 at the same rate, thereby providing a substantially uniform tightness of the upper 100 around the foot.

[0076] In some examples, when the predetermined release force F is applied... R When applied to release line 390, release line 390 is operably connected to anchor post 458 of first pawl 406 to selectively disengage first pawl 406 from teeth 444 of ratchet mechanism 442. When second pawl 408 engages with control surface 466, second pawl 408 is operable to control spool 404 in the second direction D. S2 The rotational speed of the ropes causes ropes 304 and 306 to rotate along the second direction D. S2 During rotation, the spool 404 does not become entangled when collected (e.g., wound) or released (e.g., unwound) from a corresponding one of the first channel 436 and the second channel 438. In some configurations, the second pawl 408 includes two cam surfaces that engage with a corresponding one of two control surfaces 466 when the first pawl 406 remains disengaged from the teeth 444 (i.e., when the rope lock 302 is operable in the unlocked state). Each control surface 466 may be axially positioned on opposite sides of the ratchet mechanism 442 such that the teeth 444 are positioned between the control surfaces 466 and project radially inward therefrom.

[0077] Reference Figure 8When the rope lock 302 is in the locked state, the first pawl 406 is biased to engage with the plurality of teeth 444 of the ratchet mechanism 442. Here, the first pawl 406 rotates about the first pawl rotation axis A. FP In the first direction D FP1 The pivoting and rotation cause the teeth 445 of the first pawl 406 to engage with the teeth 444 of the ratchet mechanism 442. In some examples, the first pawl 406 includes a tactile protrusion 468 configured to engage with a tactile dome 424 to provide a "click" sound indicating an incremental change in position in the spool 404 during each successive engagement between the first pawl 406 and the teeth 444.

[0078] Reference Figure 9 One end 394 of the release line 390 is attached to the anchor post 458 of the first pawl 406 to allow the release line to be released when the predetermined release force F is applied. R When applied to the release line 390, the release line 390 selectively disengages the first pawl 406 from the teeth 444 of the ratchet mechanism 442. For example, the user can grasp the loop 392 of the release line 390 and apply a predetermined force F. R This causes the first pawl 406 to disengage from the teeth 444 of the ratchet mechanism 442. Here, the predetermined force F R Overcoming the biasing force of the first pawl spring 448 to allow the first pawl 406 to move in the second direction D FP2 Rotation axis A around the first pawl FP Rotation. Furthermore, when the predetermined force F... R When the first pawl 406 disengages from the teeth 444 to switch the rope lock 302 to the unlocked state, the tactile protrusion 468 can engage with the tactile dome 424 to provide a "click" sound.

[0079] Figure 9 It shows that when the predetermined force F R When the release line 390 is applied, the rope lock 302 is in an unlocked state in response to the release line 390 selectively disengaging the first pawl 406 from the tooth 444 of the ratchet mechanism 442. When the rope lock 302 is in the unlocked state and the first pawl 406 is disengaged from the tooth 444 of the ratchet mechanism 442, the release force F... L When applied to the first rope 304, the spool 404 is allowed to move along the second direction D. S2 Rotate to allow the first rope 304 to move in the release direction D L Movement. In some examples, as the spool 404 moves in the second direction D... S2 As the spool rotates upwards, the first channel 436 of the spool 404 collects the first rope 304, while the second channel 438 of the spool 404 releases the second rope 306. Therefore, the second rope 306 is in the release direction D. LThe movement on the upper allows the effective length of the first rope 304 to increase, allowing segments 316a-316e and 318a-318f to loosen, thereby facilitating the transition of the upper 100 from a tightened state to a loosened state, allowing the foot to be removed from the inner space 102.

[0080] Refer back Figure 5 The cover 410 and housing 400 of the rope lock 302 may each include a hub 470 configured to support a first pawl shaft 446 of the first pawl 406. The cover 410 may also each include an elongated channel 472 that cooperates with an elongated channel 432 of the housing 400 to allow the first pawl 406 to rotate about a first pawl axis A. FP Along the first direction D FP1 Or the second direction D FP2 During pivoting, the anchor post 458 of the first pawl 406 is allowed to rotate freely relative to the housing 400 and the cover 410.

[0081] In use, the footwear 10 can be selectively moved between a tightened and slack state using the tensioning system 300. When the footwear 10 is initially in a slack state, the effective length of the first cord 304 is maximized, such that the first cord is slack when wrapped around the upper 100, while the effective length of the second cord 306 is minimized as it is wound around the spool 404 of the cord lock 302. Therefore, the user's foot can be inserted into the internal space 102 of the shoe 10, whereby the material of the upper 100 allows it to stretch to accommodate the foot.

[0082] As the user's foot is inserted into the internal space 102 of the shoe upper 100, the user can move the tensioning system 300 to a tightened state to secure the shoe 10 to the foot. As described above, a tightening force F is applied to the tightening grip 388. T The tightening system 300 moves to the tightened state, thereby causing the second rope 306 to move in the tightening direction D. T Move upwards. As the second rope 306 moves along the tightening direction D... T Move, spool 404 along the first direction D S1 The second rope 306 is rotated and unwound from the second channel 438. Simultaneously, the first rope 304 is wound within the first channel 436, causing the first rope 304 to retract into the rope lock 302. Therefore, the effective length of the first rope 304 around the upper 100 is minimized to move the upper 100 into a tightened state around the foot.

[0083] As described above, when the first rope 304 is along the tightening direction D T During movement, segments 316a-316e of the first part 308 will tighten the force F. TThe tensioning force FT is distributed to the ends 322 and 338 of the first strap 320 and the second strap 334 to tighten the first strap 320 and the second strap 334 on the tongue portion 106. Simultaneously, segments 318a-318e of the second portion 310 distribute the tensioning force FT to the second end 324 of the first strap 320, the rope guides 358 and 368 of the inner wing 342 and the outer wing 362, and the anchor point 360 of the inner wing 342 to contract the lower region of the tongue portion 106. Meanwhile, the effective length of the second rope 306 can increase when the tensioning system 300 moves to the tightened state. However, the second rope 306 can be held in the tightened position against the upper 100 by the elasticity of the sheath 386.

[0084] Before, during, or after the tensioning system 300 moves to the tightened state, when the release force F applied to the release line 390... R When overcome by the first pawl spring 448, the biasing force of the first pawl spring 448 can move the first pawl 406 to the locked position. When the rope lock 302 is in the locked state, the teeth 444 of the spool 404 are engaged by the teeth 445 of the first pawl 406 to prevent the spool 404 from moving along the second direction D. S2 (That is, release direction D) L Rotation. Therefore, as long as the rope lock 302 remains in the locked position, the rope lock 302 will keep the tensioning system 300 in a tightened state.

[0085] When the user wishes to remove the footwear 10 from their feet, the tensioning system 300 can move to the relaxed state to allow the upper 100 to loosen around the foot. Initially, the cord lock 302 must be engaged by applying sufficient release force F. R It moves to the unlocked state by overcoming the bias force of the first pawl spring 448. When the release force F... R When the bias force is overcome, the teeth 445 of the first pawl 406 will separate from the teeth 444 of the spool 404, thereby allowing the spool 404 to move along the second direction D. S2 Rotate.

[0086] The user can apply a releasing force F to the first rope 304. L In the direction of release D L The first rope is moved upwards to maximize the effective length of the first rope 304, allowing the upper 100 to be loosened. In the illustrated example, the loosening force F can be applied by pulling the front end 18 of the upper 100 in a downward direction. L Indirectly applied to the first rope 304, thereby forcing the internal space 102 to open to remove the foot. Optionally, the first rope 304 may be provided with one or more release grips (not shown) to allow the user to apply a release force F. T Apply directly to the first rope 304.

[0087] As the first rope 304 moves in the releasing direction D L Move, spool 404 along the second direction D S2 The rotation causes the first rope 304 to unwind from the first channel 436. As the first rope 304 is unwound, its effective length increases, and segments 316a-316e and 318a-318f of the first and second portions 308 and 310 loosen, allowing the first strap 320, the second strap 334, the inner wing 342, and the outer wing 362 to loosen around the upper 100. Simultaneously, the second rope 306 winds within the second channel 438, causing it to retract back into the rope lock 302. Therefore, the effective length of the second rope 306 is minimized.

[0088] The following clauses provide exemplary constructions of footwear articles and rope locks according to the principles of the present invention.

[0089] Clause 1: A footwear article comprising: an upper defining an interior space; a sole structure attached to the upper and having a top surface facing the interior space and a bottom surface forming a mating surface on a side of the sole structure opposite to the top surface; a cord lock disposed within the sole structure adjacent to the bottom surface; a first cord having a first portion extending from the cord lock to a first anchor point on the upper and a second portion extending from the cord lock to a second anchor point on the upper; and a second cord having a first portion extending from the cord lock to a gripping portion and a second portion extending from the cord lock to the gripping portion, the cord lock being operable to retract the first portion and the second portion of the first cord when the first portion and the second portion of the second cord are extended.

[0090] Clause 2: Footwear articles according to Clause 1, wherein the cord lock is exposed for observation through an observation port provided on the bottom surface of the sole structure.

[0091] Clause 3: Footwear articles according to Clause 2, wherein the viewing opening includes a hole that extends at least partially through at least one of the outsole portion and the midsole portion of the sole structure.

[0092] Clause 4: Footwear articles according to Clause 3, wherein the viewing opening includes a window, the window including a transparent barrier extending across the opening.

[0093] Clause 5: Footwear articles according to any one of Clauses 1-4 further include a first strap extending from a first end on the inside of the upper to a second end on the outside of the upper, the first end of the first strap receiving a first portion of the first cord, and the second end of the first strap receiving a second portion of the first cord.

[0094] Clause 6: The footwear article according to Clause 5 may further include a second strap extending from a first end at the seam line of the footwear on the outer side to a second end on the inner side of the upper, the second end defining a loop and receiving a first portion of the first strap.

[0095] Clause 7: For footwear articles according to any one of Clauses 1-6, the cord lock includes a spool, the first cord is wound around the spool in a first direction, and the second cord is wound around the spool in a second direction opposite to the first direction.

[0096] Clause 8: For any footwear article according to any one of Clauses 1-7, a first portion of the first rope includes a first plurality of segments extending along the inside of the upper to a first anchor point on the inside of the upper, and a second portion of the first rope includes a second plurality of segments extending between the outside and inside of the upper to a second anchor point on the inside of the upper.

[0097] Clause 9: For any footwear article according to any one of Clauses 1-8, the first anchoring point is located on the inside of the upper in the midfoot region, adjacent to the seam line of the upper and the sole structure, and the second anchoring point is located at the distal end of a winglet located on the inside of the upper in the forefoot region.

[0098] Clause 10: Footwear articles according to Clause 9, wherein the wing extends from the proximal end attached to the mitral line to the distal end of the instep area adjacent to the upper.

[0099] Clause 11: Footwear articles according to Clause 9 or 10, wherein the winglet further includes a loop for receiving a second portion of the first rope, the loop receiving a first segment and a second segment of the second portion, and the second anchor point receiving a third segment of the second portion.

[0100] Clause 12: Footwear articles according to any one of Clauses 1-11, wherein the internal components of the cord lock are visible through the bottom surface of the sole structure.

[0101] Clause 13: A footwear article comprising: an upper defining an interior space; a sole structure attached to the upper and having a top surface facing the interior space and a bottom surface formed on a side of the sole structure opposite to the top surface that engages with the ground; a cord lock disposed within the sole structure; a first cord having a first portion extending from the cord lock in a first direction and a second portion extending from the cord lock in a second direction, the first portion including a first plurality of segments wired along the inner side of the upper via at least one strap, the second portion including a second plurality of segments wired along the outer side of the upper via the at least one strap; and a second cord extending from the cord lock, and operable to move the first cord toward a retracted state when tension applied to the second cord causes the second cord to be released from the cord lock.

[0102] Clause 14: Footwear articles as described in Clause 13, wherein the cord lock is exposed for observation through the bottom surface of the sole structure.

[0103] Clause 15: Footwear articles according to Clause 14, wherein the lace lock is exposed at a hole extending at least partially through at least one of the outsole portion and the lace contact portion of the sole structure, so as to be visible through the bottom surface of the sole structure.

[0104] Clause 16: Footwear articles as described in Clause 15 also include a window, the window comprising a transparent barrier extending across the opening.

[0105] Clause 17: For any footwear article pursuant to any one of Clauses 13-16, the at least one strap includes a first strap extending from a first end disposed on the inside of the upper to a second end disposed on the outside of the upper, the first end of the first strap receiving a first portion of the first cord, and the second end of the first strap receiving a second portion of the first cord.

[0106] Clause 18: Footwear article according to Clause 17, wherein the at least one strap includes a second strap extending from a first end attached to the outside of the footwear to a second end on the inside of the upper, the second end defining a loop and receiving a first portion of the first cord.

[0107] Clause 19: Footwear articles according to any one of Clauses 13-18, wherein the cord lock includes a spool, the first cord is wound around the spool in a first direction, and the second cord is wound around the spool in a second direction opposite to the first direction.

[0108] Clause 20: For any footwear article pursuant to any one of Clauses 13-18, a first portion of the first cord extends to a first anchor point on the inside of the upper, and a second portion of the first cord extends to a second anchor point on the inside of the upper.

[0109] Clause 21: Footwear articles according to Clause 20, wherein the first anchoring point is located on the inside of the upper in the midfoot region, adjacent to the seam line of the upper and the sole structure, and the second anchoring point is located at the distal end of a winglet located on the inside of the upper in the forefoot region.

[0110] Clause 22: Footwear articles according to Clause 21, wherein the wing extends from the proximal end attached to the mitral line to the distal end of the instep area adjacent to the upper.

[0111] Clause 23: Footwear articles according to Clause 21 or 22, wherein the winglet further includes a loop for receiving a second portion of the first rope, the loop receiving a first segment and a second segment of the second portion, and the second anchor point receiving a third segment of the second portion.

[0112] Clause 24: Footwear articles pursuant to any one of Clauses 13-18, wherein the internal components of the cord lock are visible through the bottom surface of the sole structure.

[0113] The foregoing description has been provided for illustrative purposes. It is not intended to be exhaustive or limiting of this disclosure. Elements or features of a particular construction are generally not limited to that particular construction, but are interchangeable where applicable, and may be used in the chosen construction even if not specifically shown or described. It can also be varied in many ways. Such variations should not be considered a departure from this disclosure, and all such modifications are intended to be included within the scope of this disclosure.

Claims

1. A sole structure for footwear articles, the sole structure comprising: Outsole, which defines the ground contact surface of the sole structure; and A cord lock, which is disposed within the sole structure and operable to selectively restrict the movement of the cord relative to the outsole, is visible at the ground contact surface of the sole structure.

2. The footwear article of claim 1, further comprising a cavity therein for receiving the rope.

3. The sole structure according to claim 2, wherein, The outsole includes a hole formed through the thickness of the outsole, the hole being aligned with the cavity to expose the rope lock at the ground contact surface.

4. The sole structure of claim 3 further includes a transparent barrier extending across the hole, the lanyard being visible through the transparent barrier at the ground contact surface.

5. The sole structure according to claim 4, wherein, The transparent barrier forms part of the ground-contact surface of the sole structure.

6. The sole structure according to claim 4, wherein, The transparent barrier is circular.

7. The sole structure according to claim 3, wherein, The hole is circular.

8. The sole structure according to claim 1, wherein, The rope lock includes a housing and a spool rotatably supported by the housing.

9. The sole structure according to claim 8, wherein, When rotated relative to the housing in a first direction, the spool is operable to selectively wind the rope, and when rotated relative to the housing in a second direction, the spool is operable to release the rope.

10. The sole structure according to claim 1, wherein, The rope lock is recessed from the ground contact surface.

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