Footwear and methods of manufacturing the same

Abstract

The present application provides a kind of footwear and its manufacturing method, which is easy to combine or separate the upper side and the outsole side by using screw, and easy to form the desired bending shape of the bottom of the footwear.The outsole side structure (OC) and the upper side structure (UC) can be freely separated and integrated by screwing the combination screw (42) and the screw seat (41) in the outsole side mounting configuration (80) and the upper side mounting configuration (90).In addition, by setting the offset area that offsets the position of the outsole side mounting configuration (80) and the position of the upper side mounting configuration (90), the bending shape is formed in the sole by screwing the outsole side structure (OC) and the upper side structure (UC).

Description

Technical Field

[0001] This invention relates to footwear, including shoes, and methods for manufacturing the same. Background Technology

[0002] As a well-known shoe manufacturing method, the Mackey method is known. This method involves preparing a shoe mold, placing the insole (midsole) inside the mold, covering the shoe upper (upper) on the mold, attaching the outsole (outsole) from below, and then sewing the outsole, upper, and insole together with thread.

[0003] One of the drawbacks of this MIDDLE manufacturing method is that once the outsole, upper, and insole are sewn together, they are not easy to separate, making it difficult to replace or repair them.

[0004] The second drawback is that shoe molds are required during manufacturing.

[0005] In addition, there is the so-called adhesive bonding manufacturing method as a shoe manufacturing method. However, this adhesive bonding manufacturing method also has the same two drawbacks as mentioned above.

[0006] Furthermore, when using high-grade leather uppers called oiled leather, it is necessary to sew the uppers in the case of insufficient bonding in the adhesive construction method.

[0007] Therefore, there is a desire for a shoe in which the upper and outsole can be easily joined and separated, thus allowing for easy repair, replacement, and combination changes of the upper and outsole according to purpose and preference.

[0008] In addition, I hope there is a type of shoe that can be manufactured without the need for a shoe mold called a shoe last.

[0009] Existing technical documents

[0010] Patent documents

[0011] Patent Document 1: Japanese Patent Application Publication No. 57-66704

[0012] Patent Document 2: International Publication No. WO2009 / 081739 Summary of the Invention

[0013] The problem that the invention aims to solve

[0014] Patent document 1 describes a type of footwear as follows: the footwear is equipped with an outsole (heel 3), an upper (outer leather 4), an insole (midsole 10 for footwear), and screw seats and threaded screws (bolts 7) thereon. The structure is such that the outsole has an outsole side mounting configuration part, the insole also has an insole side mounting configuration part, and the upper has an inwardly curved flange part at its lower inner circumference. The inwardly curved flange part of the upper is located between the outsole and the insole. By threading the screws that are mounted in pairs on the outsole side mounting configuration part and the insole side mounting configuration part with the screw seats, the outsole, upper and insole are integrated in a way that allows them to be freely separated.

[0015] In the aforementioned patent document 2, a technology is described in which the outsole (a component made of a metal plate on the side of the foot, etc.), the upper and the insole (inner layer 7) are integrated into a structure in which the three parts can be freely separated, and the upper is also provided with positioning holes.

[0016] However, while the aforementioned patent documents 1 and 2 disclose the concept of integrating the outsole side and the upper side of the shoe by means of screws, they do not disclose any concept of using the screw connection to simultaneously form the desired curved shape on the bottom of the shoe.

[0017] Therefore, the objective of this invention is to solve the problems of the prior art described above and to provide a type of footwear and a method for manufacturing the same. The footwear is a type of footwear based on the Mackie manufacturing method. However, by using screws to join and separate the upper side and the outsole side, it is possible to easily join, separate, repair, replace, and modify the combination of the upper side and the outsole side.

[0018] Furthermore, the objective of this invention is to provide a type of footwear and a method for manufacturing the same, which, without using a shoe mold or similar material called a shoe last, allows the bottom of the footwear to be simultaneously shaped into a desired curved form when screws are attached to the upper side and the outsole side.

[0019] Methods for solving problems

[0020] To achieve the above-mentioned objectives, the footwear of the present invention is equipped with at least: an outsole side structure constituting the outsole side, an upper side structure constituting the upper side, and a screw seat and a connecting screw threaded into the screw seat, characterized in that,

[0021] The outsole side structure of the shoe is provided with a plurality of outsole side mounting configuration parts at predetermined intervals for mounting and configuring the screw seats or the connecting screws.

[0022] In the shoe upper side structure, a plurality of shoe upper side mounting configuration parts are provided at predetermined intervals corresponding to the shoe outsole side mounting configuration parts for mounting and configuring the screw seats or the connecting screws.

[0023] By installing paired screws on the outsole side mounting section and the upper side mounting section, and threading them with the screw seats, a structure is formed in which the outsole side structure and the upper side structure can be freely separated and integrated.

[0024] Furthermore, a deviation region is provided where the position of the outsole mounting configuration part is offset from the position of the upper mounting configuration part. This is configured such that when the outsole structure and the upper structure are screwed together, a curved shape corresponding to the deviation direction and deviation size is formed in the deviation region.

[0025] Furthermore, based on the first feature described above, the second feature of the footwear of the present invention is that the outsole mounting configuration portion is provided at predetermined intervals along the outer periphery of the outsole of the outsole of the outsole side structure, and the upper mounting configuration portion corresponding to the outsole mounting configuration portion is provided at predetermined intervals along the outer periphery of the insole of the upper side structure. In addition, the upper of the upper side structure has a positioning hole corresponding to the upper mounting configuration portion at its bottom. The connecting screws and screw seats provided in pairs to the outsole mounting configuration portion provided on the outsole and the upper mounting configuration portion provided on the insole are threadedly engaged through the positioning hole of the upper. Thus, an integrated structure is formed in which the outsole and the insole can be freely separated in a state of clamping the bottom of the upper.

[0026] Furthermore, based on the second feature described above, the third feature of the footwear of the present invention is that the insole of the shoe upper side structure and the shoe upper are not joined together except by screws connected by connecting screws and screw seats.

[0027] Furthermore, based on the second feature described above, the fourth feature of the footwear of the present invention is that, in addition to the screw connection between the insole and the upper of the shoe upper side structure, the two are also bonded together by an adhesive.

[0028] Furthermore, based on the first feature described above, the fifth feature of the footwear of the present invention is that the outsole mounting configuration portion is provided at predetermined intervals along the outer periphery of the outsole of the outsole side structure, and the upper mounting configuration portion corresponding to the outsole mounting configuration portion is provided at predetermined intervals along the bottom outer periphery of the upper of the upper side structure. The connecting screws and screw seats are threadedly engaged with the outsole mounting configuration portion provided on the outsole and the upper mounting configuration portion provided on the upper, thereby forming an integrated structure in which the outsole and the upper can be freely separated.

[0029] The present invention relates to a method for manufacturing footwear, wherein the footwear is equipped with at least: an outsole side structure constituting the outsole side, an upper side structure constituting the upper side, and a screw seat and a connecting screw threaded into the screw seat, wherein the sixth feature is that...

[0030] The outsole side structure of the shoe is provided with a plurality of outsole side mounting configuration parts at predetermined intervals for mounting and configuring the screw seats or the connecting screws.

[0031] In the shoe upper side structure, a plurality of shoe upper side mounting configuration parts are provided at predetermined intervals corresponding to the shoe outsole side mounting configuration parts for mounting and configuring the screw seats or the connecting screws.

[0032] By threading the screws, which are installed in pairs on the outsole side mounting configuration and the upper side mounting configuration, the outsole side structure and the upper side structure can be integrated in a way that allows for free separation.

[0033] Furthermore, a deviation area is provided where the position of the outsole mounting configuration part is offset from the position of the upper mounting configuration part. When the outsole structure and the upper structure are screwed together, a curved shape corresponding to the deviation direction and deviation size is formed in the deviation area.

[0034] Furthermore, the seventh feature of the footwear manufacturing method of the present invention, based on the sixth feature described above, is that outsole mounting configuration portions are provided at predetermined intervals along the outer periphery of the outsole of the outsole of the outsole side structure, and upper mounting configuration portions corresponding to the outsole mounting configuration portions are provided at predetermined intervals along the outer periphery of the insole of the upper side structure. Additionally, a positioning hole corresponding to the upper mounting configuration portion is provided at the bottom of the upper of the upper side structure. A pair of connecting screws and screw seats, which are mounted in the outsole side mounting configuration portions provided on the outsole and the upper side mounting configuration portions provided on the insole, are threaded together via the positioning holes on the upper. This allows the outsole and insole to be freely separable and integrated while clamping the bottom of the upper.

[0035] Furthermore, the eighth feature of the footwear manufacturing method of the present invention, based on the seventh feature described above, is that, for the insole and the upper of the shoe upper side structure, no joint is performed between the two except for the screw joint performed by the connecting screw and the screw seat.

[0036] Furthermore, the ninth feature of the footwear manufacturing method of the present invention, based on the seventh feature described above, is that, for the insole and the upper of the upper side structure, a bonding process using an adhesive is performed between the two before the screw bonding by the connecting screw and the screw seat.

[0037] Furthermore, the tenth feature of the footwear manufacturing method of the present invention, based on the sixth feature mentioned above, is that outsole mounting configuration portions are provided at predetermined intervals along the outer periphery of the outsole of the outsole side structure, and upper mounting configuration portions corresponding to the outsole mounting configuration portions are provided on the bottom of the upper itself of the upper side structure. By threading the connecting screws of the outsole side mounting configuration portions of the outsole and the upper side mounting configuration portions of the upper onto the outsole and the upper, which are mounted in pairs, the outsole and the upper are integrated in a way that allows for free separation.

[0038] The effects of the invention

[0039] According to the footwear of the present invention, at least an outsole side structure constituting the outsole side, an upper side structure constituting the upper side, and a screw seat and a connecting screw threaded into the screw seat are provided.

[0040] In the outsole side structure and the upper side structure, multiple outsole side mounting configurations and upper side mounting configurations are respectively arranged at specified intervals corresponding to each other.

[0041] Furthermore, by installing a pair of screws and screw seats on the outsole side mounting section and the upper side mounting section, the outsole side structure and the upper side structure can be freely separated and integrated.

[0042] In addition, a deviation area is provided where the position of the outsole mounting configuration part is offset from the position of the upper mounting configuration part. This is configured such that when the outsole structure and the upper structure are screwed together, a curved shape corresponding to the deviation direction and deviation size is formed in the deviation area.

[0043] Therefore, according to the footwear of the present invention, it is easy to provide a footwear that integrates the outsole side structure and the upper side structure by means of a connecting screw and a screw seat, and can be freely separated.

[0044] In addition, a footwear can be provided that, during repair or other circumstances, can be easily disassembled and separated into the outsole side structure and the upper side structure according to the TPO, for repair, replacement, and combination modification.

[0045] Furthermore, according to the structure of the present invention, by providing a deviation region in which the position of the outsole mounting configuration part is offset from the position of the upper mounting configuration part, when the outsole side structure and the upper side structure are screwed together, no shoe mold or similar material called a shoe last is required, and a desired bending shape corresponding to the deviation direction and deviation size in the deviation region can be easily formed on the bottom of the footwear.

[0046] Furthermore, in the footwear according to the present invention, based on the effects produced by the structure described above, outsole mounting configuration portions are provided at predetermined intervals along the outer periphery of the outsole of the outsole of the outsole side structure, and upper mounting configuration portions corresponding to the outsole mounting configuration portions are provided at predetermined intervals along the outer periphery of the insole of the upper side structure.

[0047] In addition, at the bottom of the upper of the shoe upper side structure, a positioning hole is provided corresponding to the mounting configuration part on the shoe upper side.

[0048] Furthermore, the pair of mounting screws and screw seats installed on the outsole side mounting part and the upper side mounting part are threaded together via the positioning hole at the bottom of the upper, thereby allowing the outsole, upper and insole to be freely separated and integrated in a state of clamping the bottom of the upper.

[0049] Therefore, the footwear according to the present invention can cleverly utilize the insole of the upper side structure to screw together the outsole, upper and insole in a stacked state, and integrate the outsole side structure and the upper side structure in a freely separable manner.

[0050] Furthermore, in the footwear according to the present invention, based on the effects produced by the structure described above, the insole of the upper side structure and the upper are not joined together except by screws connected by connecting screws and screw seats.

[0051] Therefore, according to the footwear of the present invention, when the screw connection between the connecting screw and the screw seat is released and the outsole side structure and the upper side structure are separated, the upper and the insole of the upper side structure can be easily separated simultaneously.

[0052] Furthermore, by separating the upper from the insole within the outsole structure, it is possible to easily repair, replace, or reassemble these uppers and insoles individually.

[0053] Furthermore, in the footwear according to the present invention, based on the effects produced by the structure described above, the insole and the upper of the upper side structure are bonded together by an adhesive in addition to the screw connection by the connecting screw and the screw seat.

[0054] Therefore, according to the footwear of the present invention, by pre-bonding the insole to the upper, the upper structure can be integrated into a single component. Consequently, the integration operation with the outsole side structure becomes a component-to-component operation, simplifying and maximizing the alignment and screw-fitting operations between the outsole side structure and the upper side structure.

[0055] Furthermore, in the footwear according to the present invention, based on the effects produced by the structure described above, the outsole mounting configuration portion is provided at predetermined intervals along the outer periphery of the outsole of the outsole of the outsole side structure.

[0056] In addition, the upper side mounting configuration portion, which corresponds to the outsole side mounting configuration portion, is provided at predetermined intervals along the bottom outer periphery of the upper side structure of the upper.

[0057] Furthermore, the connecting screws and screw seats are threadedly engaged with each other and installed in pairs on the outsole side mounting part and the upper side mounting part of the upper, thereby allowing the outsole and upper to be freely separable and integrated.

[0058] Therefore, according to the footwear of the present invention, the outsole of the outsole side structure and the upper of the upper side structure can be directly and freely integrated. This structure can be used when the upper has a bottom with thickness and strength capable of withstanding screw bonding with the outsole.

[0059] Furthermore, the footwear manufacturing method according to the present invention is a method for manufacturing footwear that is at least equipped with an outsole side structure constituting the outsole side, an upper side structure constituting the upper side, a screw seat, and a connecting screw threaded into the screw seat.

[0060] On the outsole side structure, a plurality of outsole side mounting configuration parts are provided at specified intervals for mounting and configuring the screw seats or the connecting screws.

[0061] On the upper side structure, a plurality of upper side mounting configuration parts are provided at predetermined intervals corresponding to the shoe outsole side mounting configuration parts for mounting the screw seats or the connecting screws.

[0062] Furthermore, by connecting screws that are installed in pairs on the outsole side mounting section and the upper side mounting section and engaging with the screw seat threads, the outsole side structure and the upper side structure can be integrated in a way that allows for free separation.

[0063] In addition, there is a deviation area where the position of the outsole mounting configuration part is offset from the position of the upper mounting configuration part. When the outsole structure and the upper structure are screwed together, a bending shape corresponding to the deviation direction and deviation size is formed in the deviation area.

[0064] Therefore, according to the footwear manufacturing method of the present invention, it is possible to easily manufacture footwear in which the outsole side structure and the upper side structure are integrally formed by using connecting screws and screw seats, allowing for free separation. Furthermore, it is possible to easily separate the footwear into the outsole side structure and the upper side structure as needed, and then reassemble them after repairs, replacements, or reconfigurations to manufacture the footwear.

[0065] Furthermore, according to the footwear manufacturing method of the present invention, since there is a deviation area where the position of the outsole mounting configuration part is offset from the position of the upper mounting configuration part, the outsole side structure and the upper side structure are screwed together, thereby forming a curved shape corresponding to the deviation direction and deviation size in the deviation area. Therefore, without using any shoe mold called a shoe last, it is possible to manufacture footwear with a desired curved shape formed on the bottom.

[0066] Furthermore, according to the footwear manufacturing method of the present invention, based on the effect produced by the structure described above, outsole mounting configuration portions are provided at predetermined intervals along the outer periphery of the outsole of the outsole of the outsole side structure, and upper mounting configuration portions corresponding to the outsole mounting configuration portions are provided at predetermined intervals along the outer periphery of the insole of the upper layer structure.

[0067] In addition, on the upper side structure of the shoe upper, there are positioning holes at the bottom corresponding to the mounting configuration part on the upper side.

[0068] Furthermore, by threading the screws and screw seats of the pair of mounting parts installed on the outsole side of the outsole and the insole side of the insole through the mounting holes on the shoe upper, the outsole and the insole can be freely separated and integrated in a state of clamping the bottom of the shoe upper.

[0069] Therefore, according to the footwear manufacturing method of the present invention, the outsole, upper and insole can be screwed together in a stacked state by cleverly utilizing the insole of the upper side structure, and the outsole side structure and the upper side structure can be integrated in a way that allows for free separation.

[0070] Furthermore, according to the footwear manufacturing method of the present invention, based on the effects produced by the structure described above, the insole and the upper of the upper side structure are not joined together except by screws using connecting screws and screw seats.

[0071] Therefore, according to the footwear manufacturing method of the present invention, during footwear manufacturing, the outsole, upper and insole can be integrated simultaneously by screwing them together, and the original three parts can be easily separated by unscrewing them.

[0072] Furthermore, since the upper and insole are not bonded together by any adhesives or other bonding agents, it is easy to repair, replace, or modify the combination of the upper and insole individually.

[0073] Furthermore, according to the footwear manufacturing method of the present invention, based on the effects produced by the structure described above, the insole of the shoe upper side structure and the shoe upper are bonded together with an adhesive before being threaded together using a connecting screw and a screw seat.

[0074] Therefore, according to the footwear manufacturing method of the present invention, since the insole and the upper can be bonded together in advance to form a single component, the integration of the outsole side structure and the upper side structure can be simplified as a simple operation between two components, which can greatly reduce and simplify the operation.

[0075] Furthermore, according to the footwear manufacturing method of the present invention, based on the effect produced by the structure described above, outsole mounting configuration portions are provided at predetermined intervals along the outer periphery of the outsole of the outsole of the outsole side structure, and an upper mounting configuration portion corresponding to the outsole mounting configuration portion is provided at the bottom of the upper itself of the upper side structure.

[0076] Furthermore, the connecting screws and screw seats of the outsole side mounting part and the upper side mounting part of the shoe upper are installed in pairs and engaged, thereby integrating the outsole and the upper in a way that allows them to be freely separated.

[0077] Therefore, according to the footwear manufacturing method of the present invention, the outsole of the outsole side structure and the upper of the upper side structure can be directly and freely integrated. Attached Figure Description

[0078] Figure 1 This is an overall perspective view of footwear according to an embodiment of the present invention.

[0079] Figure 2 This is an exploded perspective view of footwear according to an embodiment of the present invention.

[0080] Figure 3 This is an exploded perspective view illustrating the mounting configuration of the screw seat to the outsole in footwear according to an embodiment of the present invention.

[0081] Figure 4 This is a perspective view showing the inside of the upper of a footwear type according to an embodiment of the present invention.

[0082] Figure 5 This is a perspective view of the insole of a footwear type according to an embodiment of the present invention.

[0083] Figure 6 This is a perspective view of a screw seat and a connecting screw for footwear according to an embodiment of the present invention.

[0084] Figure 7 This is a cross-sectional view of the main part of a footwear according to an embodiment of the present invention.

[0085] Figure 8 This is a cross-sectional view illustrating the tensile force applied to the insole and other parts of the shoe when the footwear is worn according to an embodiment of the present invention.

[0086] Figure 9 This is a cross-sectional view of the main part of a footwear according to another embodiment of the present invention.

[0087] Figure 10 This is a cross-sectional view of the main part of a footwear according to another embodiment of the present invention.

[0088] Figure 11 This is an explanatory diagram illustrating the structure in footwear according to an embodiment of the present invention, in which the position of the outsole mounting configuration portion and the position of the insole mounting configuration portion are offset from each other.

[0089] Figure 12 yes Figure 11 Enlarged image. Detailed Implementation

[0090] First, refer to Figures 1-6 According to this embodiment, the footwear is equipped with at least: an outsole side structure OC forming the outsole 10 side, an upper side structure UC forming the upper 20 side, a screw seat 41 serving as a screw connection mechanism 40, and a connecting screw 42 threadedly engaged with the screw seat 41.

[0091] More specifically, for example, as a shoe, it can be equipped with an outsole 10, an upper 20, an insole 30, an insole 50, etc. On the outsole 10, an edge 60 with decorative stitching or the like can be attached to the upper surface of the outsole 10 by adhesive or the like.

[0092] The outsole side structure OC is a structure that forms the outsole 10 side when the footwear is separated into the lower outsole 10 side and the upper shoe surface 20 side by means of the screw connection mechanism 40. The outsole side structure OC is a concept that includes the outsole 10 and the components belonging to the outsole 10 side that are separated together.

[0093] The shoe upper side structure UC is a structure that forms the side of the upper 20 when the footwear is separated into the lower half of the outsole 10 and the upper half of the upper 20 by means of the screw connection mechanism 40. The shoe upper side structure UC is a concept that includes the upper 20 and the components belonging to the side of the upper 20 that are separated together.

[0094] The outsole 10 of the outsole side structure OC is equipped with a mounting body 11 for mounting the screw coupling mechanism 40 on its upper part, and a grounding body 12 for making the outsole 10 contact the ground on its lower part.

[0095] The grounding body 12 is made of rubber, for example, and can be installed on the mounting body 11 by adhesive or other means.

[0096] It goes without saying that the main body 11 for the combined mechanism installation can sometimes also be used directly as the grounding body.

[0097] The screw coupling mechanism 40 is installed on the coupling mechanism body 11.

[0098] In this embodiment, the screw seat 41 of the screw coupling mechanism 40 is mounted on the coupling mechanism mounting body 11.

[0099] When the screw seat 41 is installed on the connecting mechanism mounting body 11 of the outsole 10 of the outsole side structure OC, the pair of connecting screws 42 are installed on the upper side structure UC.

[0100] The screw seat 41 is installed at predetermined intervals along the outer periphery of the mounting body 11 of the shoe outsole 10. When the edge 60 is installed, the screw seat 41 is installed along the inner side of the edge 60.

[0101] The screw seat 41 includes a cylindrical portion 41a and a seat portion 41b, both of which have internal female threads.

[0102] The screw seat 41 is formed as part of its cylindrical portion 41a and protrudes by a specified dimension from the upper surface of the mounting body 11 of the coupling mechanism for installation configuration in an implanted setting state.

[0103] The seat portion 41b of the screw seat 41 may be a component with anti-slip claws 41c.

[0104] Reference Figure 3 The mounting body 11 for the connecting mechanism of the outsole 10 is composed of a main plate 11a and an auxiliary plate 11b.

[0105] On the main board 11a, a plurality of shoe outsole mounting configuration parts 80 are provided as screw seat mounting holes 80a along its outer perimeter at predetermined intervals.

[0106] Furthermore, for the screw seat mounting hole 80a, the cylindrical portion 41a of the screw seat 41 is inserted from below and protrudes, and the seat portion 41b of the screw seat 41 is fixed against the lower surface of the screw seat mounting hole 80a by adhesive or the like. Thus, the seat portion 41b of the screw seat 41 is embedded.

[0107] Furthermore, the auxiliary plate 11b is overlapped onto the main plate 11a from below and integrated by bonding or the like.

[0108] Furthermore, the auxiliary board 11b is not required. Without the auxiliary board 11b, the grounding body 12 is directly attached to the main board 11a (the mounting body 11 of the coupling mechanism) by means of adhesive or the like.

[0109] In this way, a plurality of outsole mounting configuration parts 80 (screw seat mounting holes 80a) are provided at predetermined intervals along the outer periphery of the outsole 10 on the outsole side structure OC, and the structure in which the screw seat 41 is mounted in each outsole side mounting configuration part 80 is completed.

[0110] Reference Figure 4 In the upper 20 of the shoe upper side structure UC, an inwardly curved inward flange portion is provided on the lower inner periphery of the bottom 21. Furthermore, a positioning hole 21a is formed in the bottom 21 including the inward flange portion. Additionally, a slit 21b is provided at least at the claw tip of the bottom 21 including the inward flange portion.

[0111] The positioning hole 21a provided on the bottom 21 corresponds to the outsole mounting configuration 80. More specifically, it is provided at a position corresponding to the screw seat 41 mounted in the screw seat mounting hole 80a of the outsole mounting configuration 80. Needless to say, the positioning hole 21a also corresponds to the upper mounting configuration 90 provided on the insole 30, which will be described later.

[0112] The positioning hole 21a is configured to fit over the protruding cylindrical portion 41a of the screw seat 41.

[0113] The slit 21b is provided at the claw tip of the bottom 21, which is an inward flange, but it can also be provided at the heel or other positions.

[0114] By providing the slit 21b, deformation occurring at the bottom 21, including the inward flange, when it is fastened from above and below, can be reduced and released, preventing deformation from being transmitted to the side of the upper 20 and causing wrinkles. The claw tip area of ​​the upper 20 has a small radius of curvature and is prone to deformation due to screw fastening. Therefore, by providing the slit 21b, wrinkles can be effectively prevented from occurring in the claw tip area of ​​the upper 20.

[0115] In addition, by providing a slit 21b in the claw tip region of the bottom 21 of the inward flange portion of the upper 20, the claw tip region of the upper 20 can be made to have good flexibility, and screw tightening operations can be easily performed from the side of the insole 30 without being hindered by the upper 20.

[0116] Reference Figure 5 In the insole 30 of the shoe upper side structure UC, a plurality of shoe upper side mounting configuration parts 90 are provided at predetermined intervals along its outer periphery.

[0117] The mounting configuration part 90 on the shoe upper side is actually configured as a screw insertion hole 90b for mounting the mounting screw 42.

[0118] The upper part of the screw insertion hole 90b is countersunk, and the head of the screw 42 does not protrude from the upper surface of the insole 30.

[0119] Alternatively, a flat buckle 34 can be provided on the upper surface of the insole 30 so that the insole 50 laid on it will not move.

[0120] exist Figure 7 The figure shows a cross-section of the footwear according to an embodiment of the present invention in the shorter direction. The cutaway view shows the central portion and the upper portion of the upper 20.

[0121] The outsole 10 of the outsole side structure OC is configured with screw seats 41 and edge 60 installed.

[0122] On the inside of the edge 60, the bottom 21 of the upper 20 of the upper side structure UC overlaps the upper surface of the outsole 10.

[0123] Furthermore, a connecting screw 42 is inserted through the mounting hole 21a of the upper 20 into the connecting screw insertion hole 90b of the mounting configuration part 90 on the upper side of the insole 30, and threaded into the screw seat 41 of the mounting configuration part 80 on the outsole side.

[0124] By combining the screw 42 with the screw seat 41, the outsole side structure OC and the upper side structure UC are integrated.

[0125] Furthermore, when the connection between the connecting screw 42 and the screw seat 41 is released, it is separated into the outsole side structure OC and the upper side structure UC.

[0126] Further cushioning is provided by placing the insole 50 on the insole 30, and the connecting screw 42 is hidden underneath.

[0127] The seat portion 41b of the screw seat 41, with claws 41c, further prevents undesirable poor fastening of the screw seat 41.

[0128] In the above embodiment, the upper 20 and the insole 30 of the shoe upper side structure UC are configured such that they are not connected except by screws connected by the connecting screws 42 and screw seats 41.

[0129] By creating a state where the upper 20 and the insole 30 are no longer connected except by the screw connection mechanism 40, when the screw connection between the connecting screw 42 and the screw seat 41 is released, separating the outsole side structure OC and the upper side structure UC, the upper 20 and the insole 30 can be easily separated from the upper side structure UC.

[0130] Furthermore, in the above embodiment, in addition to the screw connection using the connecting screw 42 and screw seat 41, the insole 30 and upper 20 of the shoe upper side structure UC can also be pre-bonded using an adhesive. In this case, after the insole 30 and upper 20 are bonded and attached, the positioning hole 21a provided in the bottom 21 of the upper 20 can be formed simultaneously and continuously with the connecting screw insertion hole 90b provided in the insole 30.

[0131] By pre-bonding the insole 30 of the shoe upper side structure UC to the shoe upper 20 as a single component, the screw connection between the shoe outsole side structure OC and the shoe upper side structure UC becomes a component-to-component operation. The alignment and screw connection of the shoe outsole side structure OC and the shoe upper side structure UC become simple operations involving two components. Therefore, the operation can be significantly reduced and simplified.

[0132] Furthermore, in the above embodiment, when the outsole side structure OC and the upper side structure UC are screwed together, a gap space 70 with a step difference equivalent to the thickness of the bottom 21 of the upper 20 can be formed inside the bottom 21 of the upper 20.

[0133] Reference Figure 8 This explains the effect produced by setting the gap space 70.

[0134] At this time, with foot F on the shoe, that is, with foot F placed on the insole 30, the pushing force P generated by foot F is applied to the insole 30 via the insole 50. Thus, a force acting on the insole 30 as a recessed space 70 acts as a tensile force S, causing the surrounding area to tend towards the center. Furthermore, this tensile force S continues to be applied via the insole 30 to the screw 42 and screw seat 41, which are in a engaged state, keeping them in a tensile state. This continuously prevents the screw engagement created by the screw 42 and screw seat 41 from loosening.

[0135] Furthermore, in the above embodiment, the bottom 21 of the upper 20 is configured as an inwardly curved flange portion forming an inward curve from the inner periphery of the lower end of the upper 20, rather than the entire surface. However, considering the upper 20 with a sole, the bottom 21 of the upper 20 may also be integrally or reinforcedly formed throughout the entire bottom surface of the upper 20. Such a structure is also included within the scope of the present invention.

[0136] In addition, in the above embodiment, a structure can be formed in which all the screw seats 41 of the screw coupling mechanism 40 are installed in the outsole mounting configuration part 80 of the outsole side structure OC, and all the coupling screws 42 are installed in the upper side mounting configuration part 90 of the upper side structure UC, and are threaded together.

[0137] However, the reverse structure can also be formed: all screw seats 41 are installed on the upper side mounting configuration part 90, and all connecting screws 42 are installed on the outsole side mounting configuration part 80, and threaded engagement is performed.

[0138] Furthermore, a structure can be formed in which a portion of the screw seat 41 is installed on the outsole mounting section 80, and the remaining screw seat 41 is installed on the upper mounting section 90. Correspondingly, a portion of the connecting screws 42 are installed on the upper mounting section 90, and the remaining connecting screws 42 are installed on the outsole mounting section 80, and threaded engagement is performed.

[0139] exist Figure 9 The diagram shows a structure in which a screw seat 41 is installed on the insole 30 of the upper side structure UC, and a connecting screw 42 is installed on the outsole 10 of the outsole side structure OC.

[0140] In this case, the insole 30 of the side structure UC of the upper is composed of a main plate 30a and an auxiliary plate 30b.

[0141] When the screw seat 41 is installed on the upper side structure UC, a structure can be formed in which a screw seat mounting hole 90a is provided in the upper side mounting part 90 of the main plate 30a of the insole 30, and the screw seat 41 is installed in the hole and supported by the auxiliary plate 30b. Furthermore, when the connecting screw 42 is installed on the outsole side structure OC, a structure can be formed in which a connecting screw insertion hole 80b is provided in the outsole side mounting part 80 of the outsole 10, and the connecting screw 42 is inserted into the insertion hole 80b, threadedly engaging with the screw seat 41 on the insole 30 side.

[0142] Alternatively, in the above-described implementation, the upper side mounting configuration 90 provided on the upper side structure UC may be provided on the upper 20 instead of the insole 30.

[0143] Reference Figure 10 This explains the situation where the mounting configuration part 90 on the shoe upper side is set on the shoe upper 20 itself.

[0144] In this configuration, an outsole mounting configuration 80 is provided on the outsole 10 of the outsole side structure OC. On the other hand, an upper mounting configuration 90 is provided on the upper 20 of the upper side structure UC. Furthermore, the two are screwed together in a freely separable manner using a connecting screw 42 and a screw seat 41.

[0145] exist Figure 10 In the illustrated embodiment, a screw seat mounting hole 90a is provided on the upper side mounting configuration portion 90 of the upper 20 for mounting a screw seat 41, and a screw insertion hole 80b is provided on the outsole side mounting configuration portion 80 of the outsole 10 for inserting a connecting screw 42. It goes without saying that the positional relationship between the screw seat 41 and the connecting screw 42 can also be reversed. That is, only one of the screw seat 41 and the connecting screw 41 needs to be mounted on the outsole 10, and the other on the upper 20.

[0146] An insole 30 can be fitted onto the upper 20.

[0147] The upper 20 can also have the bottom 21 applied over the entire surface.

[0148] In addition, the bottom 21 of the upper 20 can be reinforced with auxiliary plates or the like if it is thin or has low strength.

[0149] Reference Figure 11 , Figure 12 The shoe outsole 10 along the outsole side structure OC has a plurality of outsole side mounting configuration parts 80 (screw seat mounting holes 80a) provided at predetermined intervals, and the shoe insole 30 along the upper side structure UC has a plurality of upper side mounting configuration parts 90 (combined with screw insertion holes 90b) along predetermined intervals.

[0150] The spacing of the mounting configuration part 80 on the outsole side of the shoe is based on the size and type of the shoe, and is arranged at an inner position 5 to 20 mm away from the outer perimeter along the entire circumference, within a range of 10 to 17 mm.

[0151] The spacing of the mounting portion 80 on the outsole side can be relatively long, for example, in sandals. However, in footwear requiring high dimensional accuracy, such as leather shoes, a spacing of 10 to 25 mm is preferred. When the spacing is too wide, water tightness deteriorates. On the other hand, when the spacing is too narrow, deformation caused by the joint increases.

[0152] Specifically, the mounting portion 80 on the outsole side of the shoe is configured as a screw seat mounting hole 80a. The diameter of this screw seat mounting hole 80a is based on the screw diameter of the screw connecting mechanism 40 used, for example, 4 to 6 mm, and is the diameter that can pass through the cylindrical portion 41a of the screw seat 41 used.

[0153] The upper side mounting configuration part 90 is located at a position corresponding to the outsole side mounting configuration part 80.

[0154] Specifically, the mounting portion 90 on the shoe upper side is configured as a screw insertion hole 90b. The diameter of this screw insertion hole 90b is based on the screw diameter of the screw 42 used, for example, 3 to 5 mm, which is the diameter through which the screw 42 can pass. Needless to say, the upper entrance of the screw insertion hole 90b is countersunk so that the head of the screw 42 can be recessed.

[0155] The outsole mounting configuration 80 and the upper mounting configuration 90 are positioned in pairs so that screw engagement by screw seat 41 and connecting screw 42 can be completed in each of them.

[0156] When the outsole side structure OC (outsole 10) and the upper side structure UC (upper 20, insole 30) are integrated, and the bottom of the integrated structure (the bottom of the outsole 10) is flat, the position of the outsole side mounting configuration 80 and the position of the paired upper side mounting configuration 90 are simply consistent in the vertical direction in all positions.

[0157] On the other hand, when the outsole side structure OC (outsole 10) and the upper side structure UC (upper 20, insole 3) are integrated, if it is desired that the bottom of the integrated structure (the bottom of the outsole 10) bends in a predetermined shape, it is planned to be configured such that the position of the outsole side mounting configuration 80 and the position of the paired upper side mounting configuration 90 are offset from each other by a predetermined size.

[0158] use Figure 11 , Figure 12 A further example illustrates how the sole of a single piece (the sole of the outsole 10) can be bent into a prescribed shape in a planned manner.

[0159] The figure shows the state in which the insole 30 of the upper side structure UC is superimposed on the outsole 10 of the outsole side structure OC.

[0160] On the outsole 10, a screw seat mounting hole 80a is provided as a mounting configuration part 80 on the outsole side drawn in a slightly larger circle.

[0161] In the insole 30, there is a screw insertion hole 90b for the mounting configuration part 90 on the upper side, which is drawn as a slightly smaller circle.

[0162] Now, we will describe a case in which the sole of a footwear, for example, is centered on the arch region, and bends in a concave state in the front region along its length and in a convex state in the rear region of the arch region.

[0163] In this case, for example, the arch regions of the outsole 10 and the insole 30 are configured as non-deflection regions A, and the center of the screw seat mounting holes 80a (6 in the figure) of the outsole 10 is configured to be completely aligned with the center of the connecting screw insertion holes 90b (6 in the figure) of the insole 30 in the vertical direction.

[0164] On the other hand, the regions in front of and behind the undeviated region A along the length direction are respectively designated as the deviated region B1 and the deviated region B2.

[0165] Furthermore, in the deviation area B1, the position of the screw seat mounting hole 80a of the outsole 10 is offset to the positive side compared to the connecting screw insertion hole 90b of the insole 30, so that the sole of the shoe bends in a concave state. Here, the so-called positive side is the direction in which the hole spacing becomes longer.

[0166] Additionally, in the offset area B2, the screw mounting hole 80a of the outsole 10 is offset to the negative side compared to the connecting screw insertion hole 90b of the insole 30, so that the sole of the footwear bends in a convex-folded state. Here, the so-called negative side is the direction in which the hole spacing becomes shorter.

[0167] Reference Figure 12 In the region A without deviation, the deviation is ±0.

[0168] In the deviation region B1, relative to the non-deviation region A, the deviation increases sequentially by +1mm, +2mm, and +3mm from the point closest to the non-deviation region A. Therefore, in the deviation region B1, the screw mounting hole 80a of the outsole 10 is aligned with the screw insertion hole 90b of the insole 30 and screwed in. This causes the shoe to first bend upwards and forwards in a concave shape, corresponding to a +1mm deviation. Then, at the next +1mm deviation (total deviation from the non-deviation region A is +2mm), it also bends upwards, corresponding to the same deviation. Furthermore, at the next +1mm deviation (total deviation +3mm), it also bends upwards, gradually increasing the degree of bending.

[0169] In the preceding description, the degree of curvature corresponds to the radius of curvature determined based on the deviation dimension.

[0170] Furthermore, in the deviation area B2, relative to the non-deviation area A, the deviation ranges from -2mm to 0mm (total deviation size -2mm) and then back to 0mm (total deviation size -2mm) from near non-deviation area A. The deviation occurs only once near non-deviation area A, and the deviation size is as large as -2mm. Therefore, by aligning the screw mounting hole 80a on the outsole with the screw insertion hole 90b on the insole 30 and engaging the screws, the shoe can be bent backwards once in a convex fold equivalent to -2mm.

[0171] As described above, by designing the position of the outsole mounting configuration 80 and the position of the opposite upper mounting configuration 90 to be offset from each other by a predetermined dimension, the shape of the sole of the footwear can be formed into a predetermined curved shape without using a shoe last (shoe mold).

[0172] Furthermore, as described above, the upper-side mounting portion 90 of the upper-side structure UC is positioned on the insole 30. However, even when the upper-side mounting portion 90 of the upper-side structure UC is positioned on the upper 20, the sole of the footwear (the bottom of the outsole 10) can still be bent into a predetermined shape in a planned manner. Such a structure is also within the scope of the present invention.

[0173] In the above description, the outsole 10, upper 20, and insole 30 can be made of materials such as leather, artificial leather, rubber, plastics such as EVA or PU, and sewing materials, either individually or in combination.

[0174] In addition, in the above description, footwear, besides shoes, includes sandals and other footwear that are equipped with at least an outsole 10 and an upper 20, and thus fall under the category of footwear in this invention.

[0175] Furthermore, the upper 20 does not necessarily have to be a single piece. For example, in the case of sandals, the upper may be composed of two or more parts. Such a component also falls under the category of uppers according to the invention.

[0176] For the footwear manufacturing method according to an embodiment of the present invention, refer to Figures 1-12 An explanation was provided.

[0177] The footwear manufacturing method of the present invention relates to the manufacture of a footwear having at least an outsole side structure OC constituting the outsole side, an upper side structure UC constituting the upper side, and a screw engagement mechanism 40 including a screw seat 41 and a engagement screw 42 threadedly engaged with the screw seat 41.

[0178] On the outsole side structure OC, a plurality of outsole side mounting configuration parts 80 for mounting and configuring screw seats 41 or connecting screws 42 are provided at predetermined intervals.

[0179] On the upper side structure UC, a plurality of upper side mounting configuration parts 90 are provided at predetermined intervals corresponding to the outsole side mounting configuration part 80 for mounting the screw seat 41 or the connecting screw 42.

[0180] Furthermore, by threading the connecting screws 42, which are installed in pairs on the outsole side mounting configuration 80 and the upper side mounting configuration 90, with the screw seats 41, the outsole side structure OC and the upper side structure UC can be freely separated and integrated.

[0181] Furthermore, offset regions B1 and B2 are provided such that the outsole mounting configuration 80 and the upper mounting configuration 90 are offset from each other.

[0182] Furthermore, when screwing together the outsole side structure OC and the upper side structure UC, a curved shape corresponding to the deviation direction and deviation size is formed in the deviation areas B1 and B2.

[0183] In the aforementioned footwear manufacturing method, specifically, the outsole-side mounting configuration portion 80 of the outsole-side structure OC is provided in multiple portions along the outer periphery of the outsole 10 at predetermined intervals. Conversely, the upper-side mounting configuration portion 90 of the upper-side structure UC is provided in multiple portions along the outer periphery of the insole 30 at predetermined intervals.

[0184] The outsole mounting section 80 has a screw seat mounting hole 80a for mounting the screw seat 41. The upper mounting section 90 has a screw insertion hole 90b for inserting and mounting the connecting screw 42.

[0185] In addition, Figure 9 , Figure 10 In the embodiment shown, the screw seat 41 is installed into the screw seat mounting hole 90a of the upper side mounting configuration 90 of the upper 20, and the connecting screw 42 is installed into the connecting screw insertion hole 80b of the outsole side mounting configuration 80 of the outsole 10.

[0186] On the shoe upper 20, an inwardly curved flange is provided on the lower inner periphery of the bottom 21. A positioning hole 21a is also formed on the bottom 21. Furthermore, a slit 21b is provided at least at the claw tip of the bottom 21, including the inwardly curved flange.

[0187] Prepare the outsole 10, upper 20, and insole 30 as described above.

[0188] Next, for the integration, the upper 20 is first placed onto the outsole 10, and the positioning hole 21a of the bottom 21 is fitted onto the screw seat 41 installed on the outsole 10. Then, the insole 30 is overlapped onto the bottom 21 of the upper 20, and the connecting screw 42 is inserted through the connecting screw insertion hole 90b on the side of the insole 30, threaded into the screw seat 41 on the side of the outsole 10. Thus, the outsole 10 of the outsole side structure OC, the upper 20 of the upper side structure UC, and the insole 30 are integrated in a stacked state.

[0189] Furthermore, in the footwear manufacturing method according to an embodiment of the present invention, the positions of the outsole-side mounting portion 80 provided on the outsole 10 and the upper-side mounting portion 90 provided on the insole 30 can be offset from each other. Therefore, by screwing together the outsole 10, the upper 20, and the insole 30, footwear with curved shapes corresponding to the offset direction and offset size formed in the offset regions B1 and B2 can be manufactured.

[0190] Furthermore, in the footwear manufacturing method according to an embodiment of the present invention, the manufacturing process can be carried out such that when the outsole 10 and the insole 30 are integrated together by combining the screw 42 and the screw seat 41, and the bottom 21 of the upper 20 is overlapped in the vertical direction, a gap space 70 is formed inside the bottom 21 and below the insole 30, which is composed of a step difference that is equivalent to the thickness of the bottom 21 including the inward flange portion.

[0191] In addition, in the footwear manufacturing method according to an embodiment of the present invention, a slit 23 may be provided in at least the claw tip region of the bottom 21 (inward flange portion) of the upper 20.

[0192] Furthermore, in the footwear manufacturing method according to an embodiment of the present invention, the insole 20 and the upper 20 of the upper side structure UC can be joined without further joining, except for the screw connection made by the connecting screw 42 and the screw seat 41.

[0193] In addition, in the footwear manufacturing method according to an embodiment of the present invention, the insole 30 and the upper 20 of the upper side structure UC can be bonded together with an adhesive before the screw bonding by the connecting screw 42 and the screw seat 41.

[0194] Furthermore, in the footwear manufacturing method according to an embodiment of the present invention, outsole mounting portions 80 can be provided at predetermined intervals along the outer periphery of the outsole 10 of the outsole side structure OC, and upper side mounting portions 90 corresponding to the outsole mounting portions 80 can be provided on the bottom 21 of the upper 20 of the upper side structure UC. Moreover, the outsole 10 and the upper 20 can be integrated in a way that allows for free separation by threading the connecting screws 42, which are paired and mounted on the outsole side mounting portions 80 of the outsole 10 and the upper side mounting portions 90 of the upper 20, to screws 42 onto screw seats 41.

[0195] Industrial utilization potential

[0196] This invention has industrial potential as a footwear product and its manufacturing method.

[0197] Explanation of reference numerals in the attached figures

[0198] 10. Shoe outsole

[0199] 11. Main body for installation of the connecting mechanism

[0200] 11a motherboard

[0201] 11b auxiliary board

[0202] 12 Grounding body

[0203] 20 Shoe Upper

[0204] 21 Bottom

[0205] 21a Positioning Hole

[0206] 21b Slit

[0207] 30 Shoe Insole

[0208] 30a motherboard

[0209] 30b auxiliary board

[0210] 34 Flat Fastener

[0211] 40 Screw connection mechanism

[0212] 41 Screw seat

[0213] 41a Cylinder section

[0214] 41b Seat

[0215] 41c claw

[0216] 42 Connecting screws

[0217] 50 insoles

[0218] 60 edge

[0219] 70 Gap space

[0220] 80 Shoe Outsole Side Mounting Configuration

[0221] 80a Screw seat mounting hole

[0222] 80b Combined with screw insertion hole

[0223] 90 Shoe upper side mounting configuration section

[0224] 90a Screw seat mounting hole

[0225] 90b Combined with screw insertion hole

[0226] OC outsole side structure

[0227] UC shoe upper side structure

[0228] A No deviation region

[0229] B1 has a deviation area

[0230] B2 has a deviation area

[0231] F foot

[0232] P thrust

[0233] S Tensile force

Claims

1. A type of footwear, comprising at least an outsole side structure forming the outsole side, an upper side structure forming the upper side, and a screw seat and a connecting screw threaded into the screw seat, characterized in that, The outsole side structure of the shoe is provided with a plurality of outsole side mounting configuration parts at predetermined intervals for mounting and configuring the screw seats or the connecting screws. In the shoe upper side structure, a plurality of shoe upper side mounting configuration parts are provided at predetermined intervals corresponding to the shoe outsole side mounting configuration parts for mounting and configuring the screw seats or the connecting screws. By installing paired screws on the outsole side mounting section and the upper side mounting section, and threading them with the screw seats, a structure is formed in which the outsole side structure and the upper side structure can be freely separated and integrated. Furthermore, a deviation region is provided where the position of the outsole mounting configuration part is offset from the position of the upper mounting configuration part. This is configured such that when the outsole structure and the upper structure are screwed together, a curved shape corresponding to the deviation direction and deviation size is formed in the deviation region.

2. The footwear as described in claim 1, characterized in that, The outsole mounting configuration is provided at predetermined intervals along the outer periphery of the outsole of the outsole side structure. Correspondingly, the upper mounting configuration is provided at predetermined intervals along the outer periphery of the insole of the upper side structure. Furthermore, on the upper side structure, a positioning hole corresponding to the upper mounting configuration is provided at its bottom. The connecting screws and screw seats, which are paired and configured in the outsole side mounting configuration provided on the outsole and the upper side mounting configuration provided on the insole, are threaded together through the positioning hole on the upper. Thus, an integrated structure is formed in which the outsole and the insole can be freely separated in a state of clamping the bottom of the upper.

3. The footwear as described in claim 2, characterized in that, The insole and upper of the shoe upper side structure are not joined together except by screws connected by screws and screw seats.

4. The footwear as described in claim 2, characterized in that, In addition to the screw connection between the insole and the upper, which is made of connecting screws and screw seats, the two are also bonded together by adhesive.

5. The footwear as described in claim 1, characterized in that, The outsole mounting configuration is provided at predetermined intervals along the outer periphery of the outsole of the outsole side structure. Correspondingly, the upper mounting configuration is provided at predetermined intervals along the bottom outer periphery of the upper side structure. The connecting screws and screw seats of the outsole mounting configuration provided on the outsole and the upper mounting configuration provided on the upper are threaded together, thereby forming an integrated structure in which the outsole and the upper can be freely separated.

6. A method for manufacturing footwear, said footwear comprising at least: an outsole side structure constituting the outsole side, an upper side structure constituting the upper side, and a screw seat and a connecting screw threaded into the screw seat, characterized in that, The outsole side structure of the shoe is provided with a plurality of outsole side mounting configuration parts at predetermined intervals for mounting and configuring the screw seats or the connecting screws. In the shoe upper side structure, a plurality of shoe upper side mounting configuration parts are provided at predetermined intervals corresponding to the shoe outsole side mounting configuration parts for mounting and configuring the screw seats or the connecting screws. By threading a pair of screws onto the outsole mounting portion and the upper mounting portion, the outsole structure and the upper structure can be seamlessly integrated. Furthermore, a deviation area is provided where the position of the outsole mounting configuration part is offset from the position of the upper mounting configuration part. When the outsole structure and the upper structure are screwed together, a curved shape corresponding to the deviation direction and deviation size is formed in the deviation area.

7. The method for manufacturing footwear as described in claim 6, characterized in that, Outsole mounting configuration parts are provided at predetermined intervals along the outer periphery of the outsole of the outsole side structure. Corresponding to these outsole mounting configuration parts, upper mounting configuration parts are provided at predetermined intervals along the outer periphery of the insole of the upper side structure. Furthermore, on the upper side structure, a positioning hole corresponding to the upper mounting configuration part is provided at its bottom. Through the positioning hole on the upper side, a pair of connecting screws and screw seats are threaded into the outsole mounting configuration parts provided on the outsole and the upper mounting configuration parts provided on the insole. Thus, the outsole and insole are integrated in a manner that allows for free separation while clamping the bottom of the upper.

8. The method for manufacturing footwear as described in claim 7, characterized in that, For the insole and upper of the shoe upper side structure, no joint is implemented between the two except for the screw connection by the connecting screw and the screw seat.

9. The method for manufacturing footwear as described in claim 7, characterized in that, For the insole and upper of the shoe upper side structure, the bonding between the two is performed with an adhesive before the screw bonding by the connecting screw and screw seat.

10. The method for manufacturing footwear as described in claim 6, characterized in that, Shoe outsole mounting configuration parts are provided at predetermined intervals along the outer periphery of the outsole of the outsole side structure. Shoe upper side mounting configuration parts corresponding to the shoe outsole side mounting configuration parts are provided on the bottom of the shoe upper itself of the shoe upper side structure. By connecting the shoe outsole side mounting configuration parts and the shoe upper side mounting configuration parts of the shoe upper in pairs with the screw seat thread engagement, the shoe outsole and shoe upper are integrated in a way that allows them to be freely separated.

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