Method for manufacturing breathable and waterproof shoes with wearing covering function

Abstract

A method for making breathable and waterproof shoes with wearing coverage comprises: putting a shoe-shaped inner sleeve unit defining a wearing space on a wearing and forming part of a shoe last having a forming volume, wherein the volume of the wearing space is 5% to 10% smaller than the forming volume; applying an adhesive on the inner surface of a shoe upper unit defining an internal space, wherein the internal space is 5% to 10% smaller than the forming volume; putting the shoe upper unit on a shoe last with the shoe-shaped inner sleeve unit; placing the shoe upper unit, the shoe-shaped inner sleeve unit and the shoe last in a heating device; placing the shoe upper unit, the shoe-shaped inner sleeve unit and the shoe last in a vacuum bag for vacuuming; placing the vacuum bag in a freezing device; breaking the vacuum of the vacuum bag; pulling out the shoe last, combining the shoe upper unit and the shoe-shaped inner sleeve unit into a three-dimensional waterproof and breathable shoe upper structure; and fixing the sole to the three-dimensional waterproof and breathable shoe upper structure. This saves labor in manufacturing and reduces manufacturing costs, and the moisture-permeable and waterproof shoes have good covering properties and elasticity when worn.

Description

Technical Field

[0001] The invention relates to a method for making shoes, in particular to a method for making breathable and waterproof shoes with wearing covering properties. Background Art

[0002] like Figure 1 , 2 As shown, in the past, when producing shoes, a shoe upper 1 and a midsole cardboard 2 are generally sewn together to form a three-dimensional shoe upper structure 3, and then a shoe last 4 is inserted into an internal space 301 of the three-dimensional shoe upper structure 3, and finally a sole 5 is attached to the three-dimensional shoe upper structure 3, so that the shoe can be formed.

[0003] However, when manufacturing such shoes, the midsole cardboard 2 made of different materials must be sewn onto the upper 1, which is labor-intensive and increases the number of components and manufacturing costs. In addition, the volume of the internal space 301 of the three-dimensional upper structure 3 corresponds exactly to the volume of the part into which the shoe last 4 is inserted. After the shoe last 4 is pulled out, the volume of the three-dimensional upper structure 3 corresponds to the size of the shoe last 4 and does not shrink. Therefore, such shoes do not cover the user's feet well and are less comfortable to wear. Summary of the invention

[0004] The object of the present invention is to provide a method for manufacturing breathable and waterproof shoes with wearing coverage that can overcome at least one disadvantage of the prior art.

[0005] The method for making the breathable and waterproof shoes with wearing covering properties of the present invention comprises:

[0006] (A) A shoe-shaped inner cover unit which is moisture-permeable and waterproof and defines a wearing space is put on the wear-through molding part of the shoe last, so that the wear-through molding part of the shoe last is inserted into the wearing space, the top end of the wearing space is open and the bottom end is closed, the wear-through molding part has a molding volume, and the volume of the wearing space of the shoe-shaped inner cover unit is 5% to 10% smaller than the molding volume.

[0007] (B) applying an adhesive to an inner surface of a shoe upper unit defining an inner space, wherein the inner space is open at the top and closed at the bottom, and the inner space of the shoe upper unit is 5% to 10% smaller than the molding volume.

[0008] (C) The upper unit is put on the shoe last with the shoe-shaped inner cover unit, so that the shoe-shaped inner cover unit together with the put-on forming part of the shoe last is inserted into the inner space of the upper unit.

[0009] (D) placing the upper unit, the shoe-shaped inner cover unit and the shoe last into a heating device, heating them to a predetermined heating temperature, and maintaining the heating time, and then taking the upper unit, the shoe-shaped inner cover unit and the shoe last out of the heating device.

[0010] (E) placing the upper unit, the shoe-shaped inner cover unit and the shoe last into a vacuum bag and performing vacuuming for a predetermined vacuuming time.

[0011] (F) placing the vacuum bag together with the upper unit, the shoe-shaped inner cover unit and the shoe last into a freezing device, freezing them to a predetermined freezing temperature, and maintaining the freezing time for a predetermined time, and then taking the vacuum bag together with the upper unit, the shoe-shaped inner cover unit and the shoe last out of the freezing device.

[0012] (G) breaking the vacuum of the vacuum bag, and taking the upper unit, the shoe-shaped inner cover unit and the shoe last out of the vacuum bag.

[0013] (H) The shoe last is pulled out from the shoe-shaped inner cover unit, and the upper unit is combined with the shoe-shaped inner cover unit to form a three-dimensional waterproof and breathable upper structure.

[0014] (I) The sole is fixed to the bottom of the three-dimensional waterproof and breathable upper structure.

[0015] The method for making breathable and waterproof shoes with wearing covering properties of the present invention further comprises a step (A1) before the step (A), a step (A2) between the step (A1) and the step (A), a step (A3) between the step (A2) and the step (A), and a step (A4) between the step (A3) and the step (A). In the step (A1), a breathable and waterproof membrane is attached to a three-layer fabric to form an inner cover substrate, the three-layer fabric comprises an inner lining fabric, an outer fabric, and a foam sheet fixed between the inner lining fabric and the outer fabric. A wet waterproof membrane is attached to the outer surface of the surface fabric. In the step (A2), the inner cover base material is cut into inner cover pieces, the inner cover pieces having a lining layer, a surface fabric layer, a foam layer fixed between the lining layer and the surface fabric layer, and a moisture-permeable waterproof layer fixed to the outer surface of the surface fabric layer. In the step (A3), the inner cover pieces are sewn into a shoe-shaped inner cover, the shoe-shaped inner cover defines the wearing space. In the step (A4), a plurality of waterproof strips are fixed to the outer surface of the moisture-permeable waterproof layer to cover the sewing parts of the shoe-shaped inner cover, thereby forming the shoe-shaped inner cover unit.

[0016] The method for making breathable and waterproof shoes with wearable covering properties described in the present invention further includes a step (A5) between the step (A4) and the step (A), in which the upper pieces are sewn into the upper unit, the upper unit includes an upper bottom surface, and an upper peripheral surface connected to the peripheral edge of the upper bottom surface, the upper piece has a main surface portion, and two side wing portions symmetrically arranged on both sides of the main surface portion and integrally connected to the main surface portion, the main surface portion has a front outer convex arc edge, two rear end butt edges symmetrical to each other, a rear inner concave edge connected between the rear end butt edges and opposite to the front outer convex arc edge, and two rear connecting edges symmetrical to each other and respectively connected to the rear end butt edges, each side wing portion has a side butt edge, a side butt edge connected to the side The front arc-shaped edge between the side butt edge and the front outer convex arc edge, and the rear arc-shaped edge connected between the side butt edge and the respective rear connecting edges, the rear end butt edges are butt-jointed and sewn together, the side butt edges of the side wing portions are butt-jointed and sewn together, the front arc-shaped edge of the side wing portion is butt-jointed and sewn together with the front outer convex arc edge, and the rear arc-shaped edges of the side wing portions are butt-jointed and sewn together with the rear connecting edges respectively, the upper unit has a toe sewing portion and a heel sewing portion, the toe sewing portion extends along the front outer convex arc edge and the front arc-shaped edge of the side wing portion and is located on the bottom surface of the upper, the heel sewing portion extends along the rear connecting edge and the rear arc-shaped edge of the side wing portion and is located on the bottom surface of the upper, and the material of the upper piece is knitted cloth.

[0017] In the method for making the breathable and waterproof shoes with wearability and covering properties described in the present invention, in the step (A5), the upper unit also has a bottom sewing portion and a rear end sewing portion, the bottom sewing portion extends along the side butt joint edge of the wing portion and is located on the bottom surface of the upper, and the rear end sewing portion extends along the rear end butt joint edge and is located at the rear end of the upper circumference.

[0018] The method for making breathable and waterproof shoes with wearable covering properties described in the present invention further includes a step (I1) between the step (H) and the step (I), in which two tightening decorative panels are fixed to the left and right sides of the sole.

[0019] The method for making the breathable and waterproof shoes with wear-covering properties described in the present invention further includes a step (I2) between the step (I1) and the step (I), in which the three-dimensional waterproof and breathable upper structure is put on the shoe last.

[0020] In the method for making breathable and waterproof shoes with wearability described in the present invention, in the step (I1), each tightening decorative piece has a bottom end portion connected to the sole, and a top end portion, and the top end portion of each tightening decorative piece is formed with a plurality of shoelace perforations arranged at intervals.

[0021] The method for making the breathable and waterproof shoes with wear-covering properties described in the present invention also includes a step (J) after the step (I) and a step (K) after the step (J). In the step (J), the shoe last is pulled out from the three-dimensional waterproof and breathable upper structure. In the step (K), a tightening belt is detachably inserted into the shoelace perforation of the tightening decorative piece.

[0022] The method for making breathable and waterproof shoes with wearable covering properties described in the present invention comprises the following steps: in the step (B), the adhesive is sprayed on the inner surface of the upper unit, and the material of the adhesive is hot melt adhesive; in the step (D), the predetermined heating temperature is between 50°C and 150°C, and the predetermined heating time is not less than 10 minutes; in the step (E), the predetermined vacuuming time is between 20 seconds and 60 seconds; and in the step (F), the freezing temperature is between -5°C and 5°C, and the predetermined freezing time is not less than 2 hours.

[0023] In the method for making breathable and waterproof shoes with wearable covering properties of the present invention, in the step (D), the heating device is an oven, and in the step (F), the freezing device is a freezer.

[0024] The beneficial effect of the present invention is that the present invention directly sews the upper pieces into the three-dimensional upper unit, which can omit the sewing operation of the existing midsole cardboard, saves labor in manufacturing, reduces the number of components, and reduces manufacturing costs. Furthermore, the present invention utilizes the design that the volume of the internal space of the upper unit and the wearing space of the shoe-shaped inner sleeve are both 5% to 10% smaller than the molding volume of the wearing molding part of the shoe last. After the upper unit and the shoe-shaped inner sleeve unit are combined to form the three-dimensional waterproof and breathable upper structure and the shoe last is pulled out, the volume of the three-dimensional waterproof and breathable upper structure will be reduced. For users whose foot size corresponds to the size of the shoe last, the present invention can produce good coverage when worn, and is more comfortable to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an exploded view of a shoe upper, a midsole cardboard and a shoe last of a conventional shoe;

[0026] Figure 2 is a combined cross-sectional view of the shoe and the shoe last;

[0027] Figure 3 is a flow chart of an embodiment of a method for making breathable and waterproof shoes with wearing covering properties of the present invention;

[0028] Figure 4 is an incomplete enlarged view of a portion of an inner sleeve substrate used in the embodiment;

[0029] Figure 5 is an incomplete three-dimensional view of the inner sleeve substrate, illustrating that the inner sleeve substrate is cut into an inner sleeve cut piece in this embodiment;

[0030] Figure 6 is a three-dimensional exploded view of the cut piece and several waterproof strips used in the embodiment;

[0031] Figure 7 is a three-dimensional diagram illustrating that the inner cover cut piece is sewn into a shoe-shaped inner cover in this embodiment;

[0032] Figure 8 is similar to Figure 7 , illustrating that the waterproof strip is fixed to the outer surface of the shoe-shaped inner cover in this embodiment to cover the seam of the shoe-shaped inner cover to form a shoe-shaped inner cover unit;

[0033] Fig. 9 is a three-dimensional diagram of a shoe upper piece used in the embodiment;

[0034] Fig.10 is a three-dimensional schematic diagram of the upper piece being bent;

[0035] Fig.11 is a three-dimensional diagram illustrating the embodiment of sewing the upper pieces into an upper unit;

[0036] Fig.12 is a bottom view of the upper unit;

[0037] Fig.13 is a three-dimensional diagram illustrating that the shoe-shaped inner sleeve unit is put on a sleeve forming portion of a shoe last in the embodiment;

[0038] Fig.14 is an incomplete three-dimensional schematic diagram illustrating that an adhesive is sprayed on the inner surface of the upper unit in this embodiment;

[0039] Fig.15 is similar to Fig.13 , illustrating that the upper unit is put on the shoe last with the shoe-shaped inner cover unit in this embodiment;

[0040] Fig.16 is a plan view schematically illustrating that the upper unit, the shoe-shaped inner cover unit and the shoe last are placed in a heating device in this embodiment;

[0041] Fig.17 is a partial cross-sectional schematic diagram, illustrating that the upper unit, the shoe-shaped inner cover unit and the shoe last are placed in a vacuum bag for vacuuming in this embodiment;

[0042] Fig.18is a schematic plan view illustrating that the vacuum bag, the upper unit, the shoe-shaped inner cover unit and the shoe last are placed in a freezing device in this embodiment;

[0043] Fig.19 is a plan view schematically illustrating that the vacuum of the vacuum bag is broken in the embodiment, and the upper unit, the shoe-shaped inner cover unit and the shoe last are taken out of the vacuum bag;

[0044] Fig. 20 is a three-dimensional diagram, illustrating that after the vacuum is broken, the shoe last is pulled out of the shoe-shaped inner cover unit, and the upper unit is combined with the shoe-shaped inner cover unit to form a three-dimensional waterproof and breathable upper structure;

[0045] Fig.21 is a three-dimensional diagram, illustrating that the embodiment includes fixing two tightening decorative sheets on the left and right sides of a sole, putting the three-dimensional waterproof and breathable upper structure on the shoe last, and then fixing the sole to the bottom of the three-dimensional waterproof and breathable upper structure;

[0046] Fig. 22 is a combined cross-sectional view of a moisture-permeable and waterproof shoe and the shoe last manufactured in the embodiment;

[0047] Fig.23 is similar to Fig. 22 A view illustrating the step of pulling the shoe last of the embodiment out of the three-dimensional waterproof and breathable upper structure;

[0048] Fig.24 yes Fig.23 An incomplete enlarged view of a portion of

[0049] Fig.25 is a combined stereoscopic diagram of the breathable and waterproof shoes manufactured in this embodiment, illustrating that in this embodiment, a tightening belt is passed through the tightening decorative piece;

[0050] Fig.26 It is an exploded perspective view of the moisture-permeable and waterproof shoes manufactured in this embodiment. DETAILED DESCRIPTION

[0051] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0052] See also Figure 3 , is an embodiment of the method for making breathable and waterproof shoes with wearing covering properties of the present invention, comprising the following steps:

[0053] Step 700 (see Figure 3 ):like Figure 4As shown, a moisture-permeable waterproof membrane 310 is attached to a three-layer fabric 320 to form an inner sleeve substrate 300. The three-layer fabric 320 includes an inner lining fabric 321, a surface fabric 322, and a foam sheet 323 fixed between the inner lining fabric 321 and the surface fabric 322. The moisture-permeable waterproof membrane 310 is attached to the outer surface of the surface fabric 322.

[0054] Step 710 (see Figure 3 ):like Figure 5 , 6 As shown, the inner sleeve substrate 300 is cut into an inner sleeve cut piece 23. Figure 4 , 24 As shown, the inner cover piece 23 has a lining layer 231 taken from the inner lining 321, a surface fabric layer 232 taken from the surface fabric 322, a foam layer 233 taken from the foam sheet 323 and fixed between the lining layer 231 and the surface fabric layer 232, and a moisture-permeable waterproof layer 234 taken from the moisture-permeable waterproof membrane 310 and fixed on the outer surface of the surface fabric layer 232.

[0055] Step 720 (see Figure 3 ):like Figure 6 , 7 As shown, the inner cover piece 23 is sewn into a shoe-shaped inner cover 21, and the shoe-shaped inner cover 21 defines a wearing space 24, and the top end of the wearing space 24 is open and the bottom end is closed.

[0056] Step 730 (see Figure 3 ):like Figure 6 , 7 As shown in FIG. 8 , a plurality of waterproof strips 221 are fixed to the outer surface of the moisture-permeable waterproof layer 234 to cover the seams of the shoe-shaped inner cover 21 to form a shoe-shaped inner cover unit 20 . In this embodiment, the waterproof strips 221 can be defined as a waterproof group 22 .

[0057] Step 740 (see Figure 3 ):like Fig. 9 , 10 As shown in FIG. 11 , a shoe upper piece 17 is sewn into a shoe upper unit 10. The shoe upper unit 10 defines an internal space 194, and the top of the internal space 194 is open and the bottom is closed. In this embodiment, the material of the shoe upper piece 17 is knitted fabric.

[0058] In this embodiment, the upper unit 10 includes an upper bottom surface 11 (see Fig.12), and a vamp peripheral surface 12 connected to the peripheral edge of the vamp bottom surface 11, the vamp cut piece 17 has a main portion 18, and two side wing portions 19 symmetrically arranged on both sides of the main portion 18 and integrally connected to the main portion 18, the main portion 18 has a front outer convex arc edge 181, two rear end docking edges 182 symmetrical to each other, a rear inner concave edge 183 connected between the rear end docking edges 182 and opposite to the front outer convex arc edge 181, and two rear connecting edges 184 symmetrical to each other and respectively connected to the rear end docking edges 182, each side wing portion 19 has a side docking edge 191, a front arc-shaped edge 192 connected between the side docking edge 191 and the front outer convex arc edge 181, and a rear arc-shaped edge 193 connected between the side docking edge 191 and the respective rear connecting edges 184.

[0059] In this embodiment, the rear end butt joint edges 182 are butt jointed and sewn together, the side butt joint edges 191 of the side wing portions 19 are butt jointed and sewn together, the front arcuate edge 192 of the side wing portion 19 is butt jointed and sewn together with the front outer convex arcuate edge 181, and the rear arcuate edge 193 of the side wing portion 19 is butt jointed and sewn together with the rear connecting edge 184, respectively. Fig.11 , 12 As shown, the upper unit 10 has a toe stitch portion 13, a heel stitch portion 14, a bottom stitch portion 15, and a rear end stitch portion 16. The toe stitch portion 13 extends along the front outer convex arc edge 181 and the front arc edge 192 of the side wing portion 19 and is located on the bottom surface 11 of the upper. The heel stitch portion 14 extends along the rear connecting edge 184 and the rear arc edge 193 of the side wing portion 19 and is located on the bottom surface 11 of the upper. The bottom stitch portion 15 extends along the side connecting edge 191 of the side wing portion 19 and is located on the bottom surface 11 of the upper. The rear end stitch portion 16 extends along the rear end connecting edge 182 and is located at the rear end of the upper peripheral surface 12.

[0060] In the present embodiment, each of the toe stitching portion 13, the heel stitching portion 14, the bottom stitching portion 15 and the rear end stitching portion 16 is formed by a single stitching line, but the present invention is not limited thereto. In addition, the toe stitching portion 13, the heel stitching portion 14 and the bottom stitching portion 15 are all concealed on the bottom surface 11 of the upper and will not be directly exposed on the appearance of the upper unit 10.

[0061] Step 750 (see Figure 3 ):like Fig.13 As shown, the moisture permeable and waterproof and defines the wearing space 24 (see Figure 8 ) is put on a putting-on forming part 210 of a shoe last 200, so that the putting-on forming part 210 of the shoe last 200 is inserted into the wearing space 24.

[0062] In this embodiment, the sleeve forming portion 210 has a forming volume, and the volume of the wearing space 24 of the shoe-shaped inner sleeve unit 20 is 5% to 10% smaller than the forming volume. At this time, the sleeve forming portion 210 will temporarily expand the shoe-shaped inner sleeve unit 20.

[0063] Step 760 (see Figure 3 ):like Fig.14 As shown, an adhesive 31 is coated on the inner surface of the upper unit 10 .

[0064] In this embodiment, the adhesive 31 is sprayed on the inner surface of the upper unit 10 , and the material of the adhesive 31 is hot melt adhesive.

[0065] Step 770 (see Figure 3 ):like Fig.13 , 15 As shown, the upper unit 10 is put on the shoe last 200 with the shoe-shaped inner cover unit 20, so that the shoe-shaped inner cover unit 20 together with the wear-through forming portion 210 of the shoe last 200 penetrates into the inner space 194 of the upper unit 10 (see Fig.14 ), in this embodiment, the internal space 194 (see Fig.14 ) is 5% to 10% smaller than the molding volume. At this time, the sleeve molding portion 210 will temporarily expand the upper unit 10.

[0066] Step 780 (see Figure 3 ):like Fig.15 , 16 As shown, the upper unit 10, the shoe-shaped inner cover unit 20 and the shoe last 200 are placed in a heating device 400, heated to a predetermined heating temperature, and maintained for a predetermined heating time, so that the adhesive 31 (see Fig.14 ), that is, it will be cured by heat to form a bonding layer 30 fixed between the inner surface of the upper unit 10 and the outer surface of the shoe-shaped inner cover unit 20 (see Fig.24 ), so that the upper unit 10 and the shoe-shaped inner cover unit 20 are closely fitted, and then the upper unit 10, the shoe-shaped inner cover unit 20 and the shoe last 200 are placed in and taken out from the heating device 400.

[0067] In this embodiment, the heating device 400 is an oven, the predetermined heating temperature is between 50° C. and 150° C., and the predetermined heating time is not less than 10 minutes.

[0068] Step 790 (see Figure 3 ):like Fig.15 , 17As shown, the upper unit 10, the shoe-shaped inner cover unit 20 and the shoe last 200 are placed in a vacuum bag 500 and vacuumed for a predetermined vacuum time.

[0069] In this embodiment, the predetermined vacuuming time is between 20 seconds and 60 seconds.

[0070] Step 800 (see Figure 3 ):like Fig.15 , 18 As shown, the vacuum bag 500 together with the upper unit 10, the shoe-shaped inner cover unit 20 and the shoe last 200 are placed in a freezing device 600, frozen to a predetermined freezing temperature, and maintained for a predetermined freezing time, and then the vacuum bag 500 together with the upper unit 10, the shoe-shaped inner cover unit 20 and the shoe last 200 are taken out of the freezing device 600.

[0071] In this embodiment, the freezing device 600 is a freezer, the freezing temperature is between -5°C and 5°C, and the predetermined freezing time is not less than 2 hours.

[0072] Step 810 (see Figure 3 ):like Fig.19 As shown, the vacuum of the vacuum bag 500 is broken, and the upper unit 10 , the shoe-shaped inner cover unit 20 and the shoe last 200 are taken out of the vacuum bag 500 .

[0073] Step 820 (see Figure 3 ):like Fig.19 , 20 As shown, the shoe last 200 is pulled out from the shoe-shaped inner sleeve unit 20, and the upper unit 10 and the shoe-shaped inner sleeve unit 20 are combined to form a three-dimensional waterproof and breathable upper structure 70. In this process, since the volume of the internal space 194 of the upper unit 10 and the wearing space 24 of the shoe-shaped inner sleeve 21 are 5% to 10% smaller than the molding volume of the wearing molding part 210 of the shoe last 200, after the shoe last 200 is pulled out, the volume of the upper unit 10 and the shoe-shaped inner sleeve unit 20 will be reduced, that is, the volume of the three-dimensional waterproof and breathable upper structure 70 will also be reduced, so that the user's foot can be better covered.

[0074] Step 830 (see Figure 3 ):like Fig.21 As shown, two tightening panels 41 are fixed on the left and right sides of a sole 50 .

[0075] In this embodiment, each tightening decorative piece 41 has a bottom end portion 411 connected to the sole 50 and a top end portion 412 . The top end portion 412 of each tightening decorative piece 41 is formed with a plurality of shoelace through holes 413 disposed at intervals.

[0076] Step 840 (see Figure 3 ):like Fig. 22 As shown, the three-dimensional waterproof and breathable upper structure 70 is put on the shoe last 200.

[0077] Step 850 (see Figure 3 ):like Fig.21 , 22 As shown, the sole 50 is fixed to the bottom of the three-dimensional waterproof and breathable upper structure 70 , and the tightening decorative piece 41 is located on the left and right sides of the three-dimensional waterproof and breathable upper structure 70 .

[0078] In this embodiment, an adhesive 61 (see Fig.24 ) the top of the sole 50 is fixedly connected to the bottom of the three-dimensional waterproof and breathable upper structure 70, and the adhesive 61 is cured to form an adhesive layer 60 between the sole 50 and the three-dimensional waterproof and breathable upper structure 70 (see Fig.24 ).

[0079] Step 860 (see Figure 3 ):like Fig.23 , 24 As shown, the shoe last 200 (see Fig. 22 ) is pulled out from the three-dimensional waterproof and breathable upper structure 70.

[0080] Step 870 (see Figure 3 ):like Fig.25 As shown, a tightening band 42 is detachably inserted into the shoelace through hole 413 of the tightening decorative plate 41. In this embodiment, the tightening decorative plate 41 and the tightening band 42 can be defined as a tightening unit 40.

[0081] So, like Fig.25 As shown, the manufacture of a moisture permeable and waterproof shoe 100 is completed. Fig.26 The structure of the moisture-permeable and waterproof shoe 100 is illustrated in the exploded perspective view.

[0082] Through the above description, the advantages of the present invention can be summarized as follows:

[0083] 1. The present invention directly sews the upper piece 17 into the three-dimensional upper unit 10. Compared with the prior art, the upper unit 10 of the moisture-permeable and waterproof shoe 100 manufactured by the present invention does not need to sew the existing midsole cardboard 2, which is more labor-saving in manufacturing, and can reduce the number of components and reduce manufacturing costs.

[0084] 2. Compared with the prior art, the present invention utilizes a design in which the volume of the internal space 194 of the upper unit 10 and the wearing space 24 of the shoe-shaped inner sleeve 21 are 5% to 10% smaller than the molding volume of the wearing molding portion 210 of the shoe last 200. After the upper unit 10 and the shoe-shaped inner sleeve unit 20 are combined to form the three-dimensional waterproof and breathable upper structure 70 and the shoe last 200 is pulled out, the volume of the three-dimensional waterproof and breathable upper structure 70 will be reduced. In this way, for users whose foot size corresponds to the size of the shoe last 200, the breathable and waterproof shoes 100 manufactured by the present invention can produce good coverage when worn, and are more comfortable to wear.

[0085] 3. Compared with the prior art, when a user wears the breathable and waterproof shoes 100 manufactured by the present invention, the bottom structure of the upper unit 10 and the bottom structure of the shoe-shaped inner cover unit 20 will be stacked under the sole of the user's foot. The thickness generated by the stacking of the bottom structure of the upper unit 10 and the bottom structure of the shoe-shaped inner cover unit 20 can make the present invention have good elasticity and comfort when worn.

[0086] In summary, the method for manufacturing the breathable waterproof shoes with wearing covering properties of the present invention not only saves labor in manufacturing the breathable waterproof shoes, but also reduces the manufacturing cost of the breathable waterproof shoes, and allows the breathable waterproof shoes to have good covering properties and elasticity when worn, making them more comfortable, so the purpose of the present invention can be achieved.

[0087] The above are only embodiments of the present invention and should not be used to limit the scope of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A method for manufacturing breathable and waterproof shoes with wearing covering properties, characterized in that: The method for making the breathable and waterproof shoes with wearing covering properties comprises: (A1) affixing a moisture-permeable waterproof membrane to a three-layer fabric to form an inner cover substrate, wherein the three-layer fabric includes an inner lining fabric, an outer fabric, and a foam sheet fixed between the inner lining fabric and the outer fabric, and the moisture-permeable waterproof membrane is attached to the outer surface of the outer fabric; (A2) cutting the inner cover substrate into inner cover pieces, wherein the inner cover pieces have a lining layer, a surface layer, a foam layer fixed between the lining layer and the surface layer, and a moisture-permeable and waterproof layer fixed on the outer surface of the surface layer; (A3) sewing the inner cover pieces into a shoe-shaped inner cover, wherein the shoe-shaped inner cover defines a wearing space; (A4) fixing a plurality of waterproof strips to the outer surface of the moisture-permeable waterproof layer to cover the seams of the shoe-shaped inner cover to form a shoe-shaped inner cover unit; (A5) Sewing the upper pieces into an upper unit, the upper unit comprising an upper bottom surface and an upper peripheral surface connected to the peripheral edge of the upper bottom surface, the upper piece having a main portion and two side wing portions symmetrically arranged on both sides of the main portion and integrally connected to the main portion, the main portion having a front outer convex arc edge, two rear end butt edges symmetrical to each other, a rear inner concave edge connected between the rear end butt edges and opposite to the front outer convex arc edge, and two rear connecting edges symmetrical to each other and respectively connected to the rear end butt edges, each side wing portion having a side butt edge, a front arc-shaped edge connected between the side butt edge and the front outer convex arc edge, and a side butt edge connected to the side butt edge. The rear arc-shaped edges between the edges and the respective rear connecting edges, the rear end butt edges are butted against each other and sewn together, the side butt edges of the side wing portions are butted against each other and sewn together, the front arc-shaped edges of the side wing portions are butted against the front outer convex arc-shaped edges and sewn together, the rear arc-shaped edges of the side wing portions are butted against the rear connecting edges and sewn together, the upper unit has a toe sewing portion and a heel sewing portion, the toe sewing portion extends along the front outer convex arc-shaped edge and the front arc-shaped edges of the side wing portions and is located on the bottom surface of the upper, the heel sewing portion extends along the rear connecting edge and the rear arc-shaped edges of the side wing portions and is located on the bottom surface of the upper, and the material of the upper cut piece is knitted cloth; (A) The shoe-shaped inner cover unit, which is moisture-permeable and waterproof and defines the wearing space, is put on the wear-in forming part of the shoe last, so that the wear-in forming part of the shoe last is inserted into the wearing space, the top end of the wearing space is open and the bottom end is closed, the wear-in forming part has a forming volume, and the volume of the wearing space of the shoe-shaped inner cover unit is 5% to 10% smaller than the forming volume; (B) applying an adhesive to the inner surface of the upper unit defining an internal space, wherein the top end of the internal space is open and the bottom end is closed, and the internal space of the upper unit is 5% to 10% smaller than the molding volume; (C) putting the upper unit on the shoe last with the shoe-shaped inner cover unit, so that the shoe-shaped inner cover unit and the wearing forming part of the shoe last are inserted into the inner space of the upper unit; (D) placing the upper unit, the shoe-shaped inner cover unit and the shoe last into a heating device, heating them to a predetermined heating temperature, and maintaining the heating time, and then taking the upper unit, the shoe-shaped inner cover unit and the shoe last out of the heating device; (E) placing the upper unit, the shoe-shaped inner cover unit and the shoe last into a vacuum bag and performing vacuuming for a predetermined vacuuming time; (F) placing the vacuum bag together with the upper unit, the shoe-shaped inner cover unit and the shoe last into a freezing device, freezing them to a predetermined freezing temperature, and maintaining the freezing time, and then taking the vacuum bag together with the upper unit, the shoe-shaped inner cover unit and the shoe last out of the freezing device; (G) breaking the vacuum of the vacuum bag, and taking the upper unit, the shoe-shaped inner cover unit and the shoe last out of the vacuum bag; (H) pulling the shoe last out of the shoe-shaped inner cover unit, and combining the upper unit with the shoe-shaped inner cover unit to form a three-dimensional waterproof and breathable upper structure; and (I) The sole is fixed to the bottom of the three-dimensional waterproof and breathable upper structure.

2. The method for manufacturing the breathable and waterproof shoes with wearing covering properties according to claim 1, characterized in that: In the step (A5), the upper unit further comprises a bottom sewing portion and a rear end sewing portion, wherein the bottom sewing portion extends along the side butt joint edge of the wing portion and is located on the bottom surface of the upper, and the rear end sewing portion extends along the rear end butt joint edge and is located on the rear end of the upper peripheral surface.

3. The method for manufacturing the breathable and waterproof shoes with wearing covering properties according to claim 1, characterized in that: The method for making breathable and waterproof shoes with wearable covering properties also includes a step (I1) between the step (H) and the step (I), in which two tightening decorative panels are fixed on the left and right sides of the sole.

4. The method for manufacturing the breathable and waterproof shoes with wearing covering properties according to claim 3, characterized in that: The method for manufacturing the breathable and waterproof shoes with wear-covering properties further includes a step (I2) between the step (I1) and the step (I), in which the three-dimensional waterproof and breathable upper structure is put on the shoe last.

5. The method for manufacturing the breathable and waterproof shoes with wearing covering properties according to claim 4, characterized in that: In the step (I1), each tightening decorative piece has a bottom end portion connected to the sole, and a top end portion, and the top end portion of each tightening decorative piece is formed with a plurality of shoelace through holes arranged at intervals.

6. The method for manufacturing the breathable and waterproof shoes with wearing covering properties according to claim 5, characterized in that: The method for making breathable and waterproof shoes with wear-covering properties also includes a step (J) after the step (I), and a step (K) after the step (J). In the step (J), the shoe last is pulled out from the three-dimensional waterproof and breathable upper structure. In the step (K), a tightening belt is detachably inserted into the shoelace perforation of the tightening trim.

7. The method for manufacturing the breathable and waterproof shoes with wearing covering properties according to claim 1, characterized in that: In the step (B), the adhesive is sprayed on the inner surface of the upper unit, and the material of the adhesive is hot melt adhesive. In the step (D), the predetermined heating temperature is between 50°C and 150°C, and the predetermined heating time is not less than 10 minutes. In the step (E), the predetermined vacuuming time is between 20 seconds and 60 seconds. In the step (F), the freezing temperature is between -5°C and 5°C, and the predetermined freezing time is not less than 2 hours.

8. The method for manufacturing the breathable and waterproof shoes with wearing covering properties according to claim 7, characterized in that: In the step (D), the heating device is an oven, and in the step (F), the freezing device is a freezer.

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