A waterproof shoe

Abstract

The utility model discloses a waterproof shoe, it includes sock cover, sock bottom cutting piece and insole, the sock cover is by sock cover cutting piece splicing and is formed, the sock cover lower edge forms first connecting part, first connecting part is connected with insole, sock bottom cutting piece and sock cover cutting piece hot melt adhesion, first connecting part is located between insole upper surface and sock bottom cutting piece, sock cover cutting piece and sock bottom cutting piece adopt waterproof material. The waterproof sock cover of this waterproof shoe guarantees sock cover waterproof performance and also takes into account the durability.

Description

Technical Field

[0001] This utility model relates to the field of footwear, specifically to a waterproof shoe. Background Technology

[0002] Currently, waterproof shoes on the market typically include a waterproof sock liner inside the shoe. The focus regarding waterproofing is primarily on the waterproof performance of the sock liner's bottom. As we all know, the bottom of a shoe is the most vulnerable to water ingress, making waterproofing optimization of the sole crucial. While the structure of the waterproof sock liner is relatively mature, there are still some issues with the treatment of the sole. For example, to ensure the connection strength between the sock liner and the sole, most waterproof shoes typically connect the bottom of the sock liner to the sole. During walking, the bottom of the sock liner, as the primary stress-bearing surface, is prone to tearing, which in turn affects the sock liner's waterproof performance. Utility Model Content

[0003] The purpose of this invention is to overcome the aforementioned defects or problems in the prior art and to provide a waterproof shoe that improves the waterproof performance and service life of the waterproof sock liner inside the shoe.

[0004] To achieve the above objectives, the various embodiments of this utility model adopt the following technical solutions, but are not limited to the following solutions:

[0005] The first technical solution relates to a waterproof shoe, which includes a sock liner, a sock sole panel, and a midsole. The sock liner is made by splicing together the sock liner panels. The lower edge of the sock liner forms a first connecting part, which is connected to the midsole. The sock sole panel and the sock liner panel are heat-fused together. The first connecting part is located between the upper surface of the midsole and the sock sole. The sock liner panel and the sock sole panel are made of waterproof material.

[0006] The second technical solution is based on the first technical solution, and it further includes an upper and a sole. The lower edge of the upper forms a second connecting portion, which is connected to the midsole. The second connecting portion is away from the first connecting portion, and the midsole is connected to the sole.

[0007] The third technical solution is based on the first technical solution, wherein a hot melt adhesive film is provided at the seam of the sock panel, and the hot melt adhesive film covers the seam of the sock panel.

[0008] The fourth technical solution is based on any one of the first to third technical solutions, wherein the sock and the shoe upper are connected by a hot melt adhesive film.

[0009] The fifth technical solution is based on the second technical solution, wherein the second connecting part is connected to the sole and the second connecting part is located between the sole and the midsole.

[0010] As can be seen from the above description of the various embodiments of the present utility model, compared with the prior art, the various embodiments of the present utility model have the following beneficial effects:

[0011] 1. In the first technical solution, the first connecting part is connected to the midsole, and the sock sole piece and the sock liner piece are heat-fused together. The first connecting part is located between the upper surface of the midsole and the sock sole piece. The beneficial effects of this structure are as follows: First, the part connected to the midsole and bearing the main force during walking is always borne by the first connecting part, while the heat-fused bonding of the sock sole piece and the sock liner piece forms an independent space with good waterproof performance. Therefore, even if the first connecting part is torn due to fatigue, it will not affect the waterproof performance of the sock liner. Second, the first connecting part at the lower edge of the sock liner is sandwiched between the upper surface of the midsole and the sock sole piece, forming a "sandwich" sealing layer, which ensures the connection strength between the sock liner and the midsole. Finally, the sock sole piece is directly heat-fused to the sock liner piece. Heat-fused bonding can avoid the needle holes caused by traditional knitting and eliminate the risk that needle holes and seams themselves may become channels for water penetration in traditional sewing processes. The sole, the key area most susceptible to water contact, adopts a seamless heat-fused connection, which improves the overall waterproof reliability.

[0012] 2. In the second technical solution, the upper provides a physical protective layer for the internal waterproof sock liner, protecting it from external scratches, wear, tears and impacts, thus improving the durability of the shoe, especially in harsh environments or outdoor activities; separating the first and second connecting parts avoids all connection stress and external force being concentrated in the same area, reducing the risk of the connection point coming apart, leaking water or failing due to repeated bending, twisting or stress, and improving the reliability and lifespan of the overall structure.

[0013] 3. The third technical solution optimizes the waterproof performance of the waterproof socks by applying a secondary waterproofing treatment to the seams, thereby improving the overall waterproof performance of the socks.

[0014] 4. The fourth technical solution is to bond the sock to the inside of the shoe using a hot melt adhesive film in order to improve wearing comfort and durability, thus preventing the sock from wrinkling inside the shoe and causing it to break.

[0015] 5. The fifth technical solution improves the durability of waterproof shoes. This sandwich bonding structure creates a "mechanical lock" structure for the sandwiched upper parts. When the upper is subjected to peeling force, the force is distributed to the entire bonding surface, thereby preventing the upper from separating from the midsole. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of a waterproof shoe;

[0018] Figure 2 This is a schematic diagram of a sock cover cutting piece;

[0019] Figure 3 Diagram of the bottom of waterproof shoes;

[0020] Explanation of key figure labels:

[0021] 1. Sock liner; 2. Sock sole piece; 3. Midsole; 4. Upper; 5. Sole; 11. Sock liner piece; 41. Second connecting part; 111. First connecting part. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0024] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0025] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0026] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0027] See Figure 1 , Figure 1 This is a structural diagram of a waterproof shoe, which consists of a sock liner 1, a sock sole panel 2, a midsole 3, an upper 4, and a sole 5.

[0028] See Figure 2 , Figure 2 This is a structural diagram of the sock cover piece 11. The sock cover 1 is made of two sock cover pieces 11 spliced ​​together. The sock cover pieces 11 are made of waterproof material. The two sock cover pieces 11 are spliced ​​together to form a sock cover 1 that runs through the sock sole and sock opening. The lower edge of the sock cover 1 is the first connecting part 111.

[0029] See Figure 3 The shape of the midsole 3 is adapted to the shape of the lower edge of the sock 1, and the area of ​​the midsole 3 is slightly larger than the area enclosed by the lower edge of the sock 1. The lower edge of the sock 1 is the first connecting part 111. The first connecting part 111 is sewn to the midsole 3. When sewing, it is necessary to shrink inward by 5-10mm along the circumference of the midsole 3 to leave space. This reserved space is used for sewing with the upper 4.

[0030] The sock sole piece 2 is made of waterproof material. Its area is larger than the midsole 3, allowing it to completely cover and heat-bond with the sock cover piece 11. The purpose of the sock sole piece 2 being larger than the midsole 3 is that after the first connecting part 111 is sewn to the midsole 3, the sock cover 1 with the midsole 3 is initially flipped over, with the inside facing out and the outside facing in. At this point, the shoe last is inserted, filling the sock cover 1 and smoothing its surface. Then, the sock sole piece 2 is placed on top of the midsole 3. Only when the area of ​​the sock sole piece 2 is larger than the area of ​​the midsole 3 can the edge of the sock sole piece 2 contact and heat-bond with the sock cover piece 11. If the surface of the sock sole piece 2 is larger than the area of ​​the midsole 3, the edge of the sock sole piece 2 can contact and heat-bond with the sock cover piece 11. If the area of ​​the sock bottom piece 2 is smaller than that of the midsole 3, the sock bottom piece 2 cannot cover the midsole 3, which will result in the sock bottom piece 2 being able to be heat-fused to the midsole 3. After the sock bottom piece 2 is heat-fused to the midsole 3 and the sock cover piece 11, the sock cover is flipped over again. At this time, the sock bottom piece 2 is located inside the sock cover. Due to the two key processes of "first flip" and "heat-fused bonding of the edge of the sock bottom piece 2 to the sock cover piece 11", after "flipping over again", the sock bottom piece 2 will be located above the first connecting part 111. While the sock cover 1 and the midsole 3 have a connection strength, the sock bottom piece 2 and the sock cover piece 11 form an independent waterproof space that is not affected by the first connecting part 111.

[0031] The upper 4 has a continuous structure, with its upper edge suitable for the user to put on, and its lower edge forming a second connecting part 41. The second connecting part 41 is suitable for sewing with the space reserved in the midsole 3 so that the upper 4 is sewn to the midsole 3. Therefore, after the first connecting part 111 and the second connecting part 41 are sewn to the midsole 3 respectively, the first connecting part 111 moves away from the second connecting part 41, and the two do not interfere with each other during the sewing process.

[0032] The shape of the sole 5 is adapted to the shape of the midsole 3. The sole 5 is suitable for bonding with the midsole 3. During the bonding process, the first connecting part 111 needs to be folded over and bonded to the sole 5, forming a sandwich structure of sole 5, first connecting part 111, and midsole 3. This way, when the upper 4 is subjected to peeling force, the force will be distributed to the entire bonding surface, thereby preventing the upper 4 from peeling from the midsole 3.

[0033] The specific manufacturing process is as follows: two sock cover pieces 11 made of waterproof material are spliced ​​together to form sock cover 1. Sock cover 1 forms a structure that runs through the top and bottom. Its lower edge forms the first connecting part 111. After splicing, the first connecting part 111 is sewn to the midsole 3. When sewing, the midsole 3 is shrunken inward by 5-10mm to leave space.

[0034] Turn the sock liner 1, which is sewn to the midsole 3, inside out and outside in. Put the turned-out sock liner 1 into the shoe last. Take the sock sole piece 2 and cover the midsole 3 with it. Use a hot melt device to heat melt the sock sole piece 2 to the sock liner piece 11. The hot melt connection should be above the first connection part 111 so that there are no holes or gaps between the sock liner piece 11 and the sock sole piece 2. At the same time, cover the splice of the sock liner piece 11 with a hot melt adhesive film and heat press it to seal the holes on the inside of the splice.

[0035] Remove the sock 1 from the shoe last and flip the sock 1 over again. At this time, the sock bottom piece 2 is located inside the sock 1, and the first connecting part 111 is located between the upper surface of the midsole 3 and the sock bottom piece 2. This structure strengthens the connection between the sock 1 and the shoe after the sock 1 and the midsole 3 are sewn together, without affecting the waterproof performance of the sock 1.

[0036] Put the sock 1 back onto the shoe last, cover the seam of the sock piece 11 with hot melt adhesive film, and perform hot pressing to seal the holes on the outside of the seam with hot melt adhesive film. Cover the remaining parts with hot melt adhesive film and perform hot pressing. At the same time, put on the shoe upper 4 so that the shoe upper 4 is bonded together with the sock piece 11 and the hot melt adhesive film.

[0037] After the upper 4, which is bonded to the sock liner 1, is attached to the midsole 3, the second connecting part 41 is attached to the midsole 3. The attachment point is the previously reserved space. The advantage of this is that space is reserved during the attachment process between the sock liner 1 and the midsole 3, so that the needle does not pass through the sock liner 1 during the sewing process between the upper 4 and the midsole 3, which would damage the sock liner 1 and affect the waterproof performance. After the second connecting part 41 is attached to the midsole 3, the upper 4 is sewn onto the midsole 3. The advantage of sewing the upper 4 and the sock liner 1 onto the midsole 3 at the same time is that during walking, the two are subjected to the same force, avoiding misalignment caused by uneven force, which would cause the sock liner 1 to wrinkle and eventually break, affecting the waterproof performance.

[0038] After the upper 4, which is sewn to the midsole 3, is stretched, the second connecting part 41 is folded over, and the second connecting part 41, the midsole 3 and the sole 5 are glued together. After gluing, the second connecting part 41 is located between the midsole 3 and the sole 5. This sandwich pressing structure makes the sandwiched upper 4 part form a "mechanical lock" structure. When the upper 4 is subjected to peeling force, the force will be distributed to the entire adhesive surface, thereby preventing the upper 4 from peeling off from the midsole 3.

[0039] In this waterproof shoe, the sock liner 1 is connected to the midsole 3. During walking, the main stress is always borne by the first connecting part 111. The sock sole piece 2 and the sock liner piece 11 are heat-fused together to form an independent space with good waterproof performance. Therefore, even if the first connecting part 111 is torn due to fatigue, it will not affect the waterproof performance of the sock liner 1. Secondly, the first connecting part 111 at the lower edge of the sock liner 1 is sandwiched between the upper surface of the midsole 3 and the sock sole piece 2, forming a "sandwich" type sealing layer, which ensures the connection strength between the sock liner 1 and the midsole 3. Finally, the sock sole piece 2 is directly heat-fused to the sock liner piece 11. Heat fusion bonding can avoid the needle holes caused by traditional knitting, eliminate the risk that needle holes and seams themselves may become channels for water penetration in traditional sewing processes, improve the overall waterproof reliability, and solve the technical problem that the waterproof performance is affected by tearing at the connection. In addition, the sandwich bonding structure of the upper 4 and the midsole 3 forms a "mechanical locking" structure for the sandwiched upper 4. When the upper 4 is subjected to peeling force, the force will be distributed to the entire bonding surface, thereby preventing the upper 4 from separating from the midsole 3.

[0040] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A waterproof shoe, characterized in that, It includes a sock cover (1), a sock bottom piece (2), and an insole (3). The sock cover (1) is made of sock cover pieces (11) spliced ​​together. The lower edge of the sock cover (1) forms a first connecting part (111), which is connected to the insole (3). The sock bottom piece (2) is heat-fused to the sock cover piece (11). The first connecting part (111) is located between the upper surface of the insole (3) and the sock bottom piece (2). The sock cover piece (11) and the sock bottom piece (2) are made of waterproof material.

2. The waterproof shoe as described in claim 1, characterized in that, It also includes an upper (4) and a sole (5), the lower edge of the upper (4) forming a second connecting part (41), the second connecting part (41) being connected to the midsole (3), the second connecting part (41) being away from the first connecting part (111), and the midsole (3) being connected to the sole (5).

3. A waterproof shoe as described in claim 1, characterized in that, A hot melt adhesive film is provided at the splicing point of the sock panel (11), and the hot melt adhesive film covers the splicing point of the sock panel (11).

4. A waterproof shoe as described in any one of claims 1 to 3, characterized in that, The sock (1) is connected to the shoe upper (4) by a hot melt adhesive film.

5. A waterproof shoe as described in claim 2, characterized in that, The second connecting part (41) is connected to the sole, and the second connecting part (41) is located between the sole (5) and the midsole (3).

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