Glove structure
By using injection-molded components to enhance the connection between the sewing thread and glove components in sewing gloves, the problem of friction and damage caused by the relative movement of the sewing thread and glove components is solved, thereby improving the strength and service life of the gloves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JOHN ENGINE SPORTS PROD INC
- Filing Date
- 2026-02-09
- Publication Date
- 2026-05-19
AI Technical Summary
Existing sewing gloves suffer from insufficient strength and cannot be used for long periods due to friction and damage caused by the relative movement between the sewing thread and the glove components during use.
The sewing holes are filled with injection-molded components, and the sewing thread is connected to the injection-molded components. The injection-molded components are made of polymer elastomer material and penetrate between the sewing thread and the fibers of the glove components to form longitudinal and transverse extension sections to enhance the connection strength.
Reduce friction between the sewing thread and the sewing hole wall, enhance the strength of the sewing thread assembly, and extend the service life of the gloves.
Smart Images
Figure CN122056434A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the functional structure of sewing gloves, and mainly provides a glove structure that can enhance the strength of sewing gloves and maintain their long-term use. Background Technology
[0002] Please see Figure 1A , Figure 1B and Figure 1C A sewing glove A is made by sewing at least two glove parts B together with a sewing thread C at a sewing area D formed by the contact between the two glove parts B. The sewing thread C forms a plurality of sewing holes E in the sewing area D of the glove parts B. The sewing area D is usually formed by the edge areas of two adjacent glove parts B, and the plurality of sewing holes E are arranged in at least one row along the sewing area D. Generally, the sewing glove A is subjected to a tensile force F during use, which can be simply divided into a lateral tensile force FH and a longitudinal tensile force FV. Figure 1B In the above, the longitudinal tension FV is the force that stretches the sewing line C along the sewing line C; conversely, the transverse tension FH is the force that stretches the glove component B perpendicular to the sewing line C.
[0003] When the sewing glove A is not in use, such as when it is laid flat on a table, it is not subjected to the tension F, and the sewing thread C usually fills the entire sewing hole E. However, when the sewing glove A is worn and in use, such as when pulling heavy equipment, the sewing glove A will be tightened by the tension F in two different directions, and the two glove parts B will be tightened by the lateral tension FH in two different directions, or the two glove parts B will be tightened to different degrees even though they are subjected to the same lateral tension FH. The diameter of the sewing hole E will increase due to the lateral tension FH; in other words, the diameter of the sewing hole E will be larger than that of the sewing hole E in the unused state. In addition, the sewing thread C will also be tightened by the longitudinal tension FV, causing the diameter of the sewing thread C to decrease; in other words, the diameter of the sewing thread C will be smaller than that of the sewing thread C in the unused state. Therefore, when the sewing glove A is worn and used in work, the sewing thread C does not fill the entire sewing hole E. Thus, there is a gap G in the sewing hole E in addition to the sewing thread C, and the sewing thread C is in contact with and close to the hole wall of the sewing hole E, which is the glove component B that forms the sewing hole E.
[0004] Since the aforementioned usage state is a dynamic process, the tension F will also change dynamically. For example, when wearing the sewing glove A and pulling heavy equipment, the glove will sometimes be pulled forcefully and sometimes relaxed, causing the sewing thread C and the sewing hole E to form relative movements, such as numerous and countless longitudinal relative movements and numerous and countless lateral relative movements. Both the longitudinal and lateral relative movements cause the sewing thread C to rub against the glove component B that forms the sewing hole E. The reason for the longitudinal relative movement between the sewing thread C and the sewing hole E is the longitudinal tension FV, while the reason for the lateral relative movement between the sewing thread C and the sewing hole E is the existence of the gap G, which allows the sewing thread C to be displaced laterally within the sewing hole E. The longitudinal relative motion causes the sewing thread C to act like a jigsaw at the sewing hole E, cutting and damaging the glove component B. At the same time, the lateral relative motion causes the glove component B to act like a planetary cutting machine at the sewing hole E, damaging the sewing thread C.
[0005] The glove component B of the sewing glove A can be made of fabric, and current methods for preventing the gap G in the fabric include the structure disclosed in Chinese Utility Model Patent Publication No. CN2823258Y (hereinafter referred to as Document 1). Document 1 discloses a waterproof fabric in which adhesive is used to fill the sewing holes and gaps of the fabric through pressure and heating, so as to prevent water droplets on the outside of the waterproof fabric from entering the inside of the waterproof fabric through the sewing holes and gaps. However, the waterproof fabric of Document 1 is not as demanding as the aforementioned use of the sewing glove A. For example, waterproof clothing made of waterproof fabric will not face the aforementioned use of the sewing glove A pulling heavy equipment when worn. Because Reference 1 uses self-adhesive, and the primary physical properties of self-adhesive are viscoelasticity and rheology within the operating temperature range (e.g., 0°C to 80°C), other physical properties of the self-adhesive do not need to be considered. For example, the relative motion between the sewing thread C and the glove component B, leading to friction and damage, does not need to be taken into account. Therefore, Reference 1 does not require consideration of physical properties such as hardness or tear strength to counteract the aforementioned relative motion. In other words, the self-adhesive used in Reference 1 exhibits low hardness and low tear strength in order to meet the viscoelasticity and rheology requirements within the operating temperature range. Therefore, even if the self-adhesive from Reference 1 is applied to the sewing glove A and the adhesive is filled into the gap G, it cannot counteract the relative motion and the resulting friction and damage caused by the tensile force F.
[0006] Based on the above discussion, the existing sewing glove A faces the problem that the sewing thread C and the glove component B will have relative movement, causing friction between them and resulting in damage, which cannot be solved by using existing technology. Therefore, the sewing glove A still has the problem of insufficient strength and cannot be used for a long time. Summary of the Invention The technical problem solved by this invention is to provide a glove structure that can enhance the strength of sewing gloves and maintain their long-term use.
[0007] The technical means employed in this invention are as follows.
[0008] The glove structure of the present invention includes a glove and an injection molding assembly. The glove includes a first glove component and a second glove component. The first glove component has at least one first sewing hole, and the second glove component has at least one second sewing hole. The at least one first sewing hole and the at least one second sewing hole are correspondingly arranged. A sewing thread group is used to sew the first glove component and the second glove component together through the at least one first sewing hole and the at least one second sewing hole. The glove structure is characterized in that the at least one first sewing hole contains the sewing thread group and the injection molding assembly. The sewing thread group is connected to the injection molding assembly, and the sewing thread group and the injection molding assembly fill at least a portion of the at least one first sewing hole.
[0009] Based on the above structural features, the injection molding assembly extends a longitudinal injection molding extension section upward and / or downward from the at least one first sewing hole, and the sewing thread group is connected to the longitudinal injection molding extension section.
[0010] Based on the above structural features, the sewing thread assembly includes a main sewing thread, which is a bundle of multiple main fibers, and the injection molding component penetrates between at least two of the multiple main fibers.
[0011] Based on the above structural features, the sewing thread set further includes a set of sewing threads, the main sewing thread and the set of sewing threads forming a chain stitch or a lock stitch, the set of sewing threads being a bundle of multiple secondary fibers, and the injection molding component penetrating between at least two of the multiple secondary fibers.
[0012] Based on the above structural features, the at least one second sewing hole is provided with the sewing thread group and the injection molding component, and the sewing thread group and the injection molding component fill at least a portion of the at least one second sewing hole.
[0013] Based on the above structural features, the injection molding component extends a longitudinal injection molding extension section upward and / or downward from the at least one first sewing hole and the at least one second sewing hole, respectively, and the sewing thread group is connected to the longitudinal injection molding extension section; the sewing thread group includes a main sewing thread, which is a bundle of multiple main fibers, and the injection molding component penetrates between two of the main fibers; the injection molding component extends a transverse injection molding extension section from the at least one first sewing hole and the at least one second sewing hole along the upper surface and / or lower surface of the first glove component and the second glove component, respectively.
[0014] Based on the above structural features, the first glove component is located above the second glove component, and the injection molding assembly extends from the at least one first sewing hole to the upper surface of the second glove component and / or the upper surface of the first glove component.
[0015] Based on the above structural features, the at least one first sewing hole is a plurality of the first sewing holes, and the plurality of the first sewing holes form a first sewing area; the at least one second sewing hole is a plurality of the second sewing holes, and the plurality of the second sewing holes form a second sewing area; the second sewing area is disposed above the first sewing area, and the first sewing area is disposed above the first glove component not in the first sewing area, and the injection-molded component extending from the at least one first sewing hole is filled between the first glove component not in the first sewing area and the first glove component not in the first sewing area.
[0016] Based on the above structural features, the injection molding component further extends to the second sewing area, or the injection molding component further extends to the second glove component and is adjacent to the second sewing area but does not contact the second sewing area.
[0017] Based on the above structural features, when manufacturing the glove structure, the glove is placed in a mold cavity; and a predetermined mold cavity pressure is applied to cause a liquid injection molding material to flow into the mold cavity and come into contact with the glove, and the liquid injection molding material in contact with the glove becomes the injection molding component after cooling.
[0018] Based on the above structural features, the material of the injection-molded component or the polymer elastomer is silicone.
[0019] Based on the above structural characteristics, the material of the injection molded component is a polymer elastomer; the polymer elastomer has a melt index of not less than 2 g / 10 min and not more than 40 g / 10 min as measured under ASTM D1238 conditions at 190°C / 2.16 kg; the polymer elastomer has a Shore A hardness of not less than 0 Shore A and not more than 50 Shore A as measured under ASTM D2240.
[0020] Based on the above structural characteristics, the polymer elastomer has a tensile strength of not less than 1 MPa and not more than 10 MPa as measured by ASTM D412; the polymer elastomer has an elongation at break of not less than 300% and not more than 1500% as measured by ASTM D412; and the polymer elastomer has a tear strength of not less than 2 KN / m and not more than 35 KN / m as measured by ASTM D624 Die C.
[0021] The beneficial effects of this invention are as follows.
[0022] Utilizing the above structural features, the glove structure of the present invention uses an injection-molded component to fill the sewing holes, thereby reducing or avoiding friction between the sewing thread assembly and the hole walls, thus extending the service life of the glove structure. Furthermore, the injection-molded component penetrates between multiple main or secondary fibers, thereby enhancing the strength of the sewing thread assembly. Therefore, even if the sewing thread assembly rubs against the hole walls, the sewing thread assembly is less likely to be damaged. In other words, the strength of the glove structure is enhanced, and its service life is extended. Attached Figure Description
[0023] Figure 1A This is a structural diagram of a known sewing glove.
[0024] Figure 1B This is a schematic diagram showing the tension applied to a known sewing glove.
[0025] Figure 1C This is a schematic diagram showing the gap between the sewing thread and the sewing hole when a known sewing glove is worn.
[0026] Figure 2A This is a schematic diagram of the structure of a glove according to the first embodiment of the present invention.
[0027] Figure 2B This is a schematic diagram of the structure of the glove and injection molding assembly in the first embodiment of the glove structure of the present invention.
[0028] Figure 2C for Figure 2B Structural cross-sectional view of the middle segment 2C-2C.
[0029] Figure 2D This is a cross-sectional view of the structure of the first embodiment of the glove structure of the present invention, showing the injection molding component penetrating between multiple main fibers.
[0030] Figure 2E This is a schematic diagram showing that the first glove component and the second glove component of the glove structure of the present invention are the same glove component.
[0031] Figure 3 This is a schematic diagram of the injection molding assembly filling the second sewing hole in the second embodiment of the glove structure of the present invention.
[0032] Figure 4A This is a schematic diagram of the third embodiment of the glove structure of the present invention, which includes a chain stitch formed by an auxiliary sewing thread.
[0033] Figure 4B This is a schematic diagram of the structure of the first glove component in the third embodiment of the glove structure of the present invention, in which the second sewing area and the first sewing area are stacked in sequence.
[0034] Figure 4C This is a schematic diagram of the third embodiment of the glove structure of the present invention, showing the injection molding component extending to the second sewing area.
[0035] Figure 4D This is a cross-sectional view of the structure of the injection molding component between multiple secondary fibers in the third embodiment of the glove structure of the present invention.
[0036] Figure 5A This is a schematic diagram of the fourth embodiment of the glove structure of the present invention, which includes a secondary sewing thread forming a lockstitch.
[0037] Figure 5B This is a schematic diagram of the structure of the first glove component in the fourth embodiment of the present invention, in which the second sewing area and the first sewing area are stacked in sequence.
[0038] Figure 5C This is a schematic diagram of the fourth embodiment of the glove structure of the present invention, showing the injection molding component extending to the second sewing area.
[0039] Symbol explanation: This invention 10: Gloves 11: First glove component 111: First sewing hole 12: Second glove component 121: Second sewing hole 13: Sewing thread set 131: Main sewing thread 1311: Main fiber 132: Secondary sewing thread 1321: Secondary fiber 20: Injection Molded Components 21: Longitudinal injection molding extension section 22: Lateral injection molding extension section L1: First sewing area L2: Second sewing area Detailed Implementation This invention mainly provides a glove structure, such as Figure 2A , Figure 2B , Figure 2C , Figure 2D and Figure 2E The first embodiment shown includes a glove 10 and an injection molding assembly 20 in its glove structure. Please refer to... Figure 2A The glove 10 includes at least a first glove component 11 and a second glove component 12. Please refer to... Figure 2B The first glove component 11 has at least one first sewing hole 111, and the second glove component 12 has at least one second sewing hole 121. The at least one first sewing hole 111 and the at least one second sewing hole 121 are correspondingly arranged. A sewing thread group 13 sews the first glove component 11 and the second glove component 12 together through the at least one first sewing hole 111 and the at least one second sewing hole 121. Generally, the first glove component 11 and the second glove component 12 are different glove components; however, the first glove component 11 and the second glove component 12 can also be the same glove component, such as... Figure 2E .
[0040] In practice, the first glove component 11 and the second glove component 12 can each be a sheet-like piece made of cotton yarn, leather, plush, fiber, natural fiber, synthetic fiber, non-woven fabric, plastic, or rubber. Typically, at least the first glove component 11 and the second glove component 12 are sewn together using a sewing machine (not shown) to form the glove 10; therefore, the glove 10 is a sewing glove. Please refer to... Figure 2B The number of at least one first sewing hole 111 is multiple, that is, multiple first sewing holes 111 arranged in a row to form a first sewing hole row; the number of at least one second sewing hole 121 is multiple, that is, multiple second sewing holes 121 arranged in a row to form a second sewing hole row. The multiple first sewing holes 111 are respectively corresponding to the multiple second sewing holes 121, for example, in... Figure 2BThe first sewing hole 111, numbered 1 at the bottom of the first glove component 11, and the second sewing hole 121, numbered 1 at the bottom of the second glove component 12, are correspondingly arranged. The sewing thread 13 passes through the first sewing hole 111 and the second sewing hole 121, numbered 1, thus the sewing thread 13 sews the first glove component 11 and the second glove component 12 together via the first sewing hole 111 and the second sewing hole 121, numbered 1. Similarly, from number 1 upwards, number 2, the first sewing hole 111, numbered 2, of the first glove component 11 and the second sewing hole 121, numbered 2, are correspondingly arranged. The sewing thread assembly 13 passes through the first sewing hole 111 (numbered 2) and the second sewing hole 121 (numbered 2), thus the sewing thread assembly 13 sews the first glove component 11 and the second glove component 12 together via the first sewing hole 111 (numbered 2) and the second sewing hole 121 (numbered 2). The remaining numbered components are similar, and therefore will not be described further.
[0041] Please refer to Figure 2CThe at least one first sewing hole 111 contains the sewing thread assembly 13 and the injection molding assembly 20. The sewing thread assembly 13 is connected to the injection molding assembly 20, and the sewing thread assembly 13 and the injection molding assembly 20 fill at least a portion of the at least one first sewing hole 111. Understandably, since the sewing thread assembly 13 in the at least one first sewing hole 111 is connected to the injection molding assembly 20, the surface of the sewing thread assembly 13 in the at least one first sewing hole 111 is protected by the injection molding assembly 20. For example, when a user wears this glove structure and is in use, such as pulling heavy equipment, at most only a portion of the sewing thread assembly 13 will rub against the wall of the at least one first sewing hole 111, while the rest will rub against the wall of the at least one first sewing hole 111 formed by the injection molding assembly 20; wherein, the wall of the at least one first sewing hole 111 is the first glove component 11 forming the at least one first sewing hole 111. Since only a portion of the sewing thread assembly 13 will rub against the wall of the at least one first sewing hole 111, the proportion of wear on the sewing thread assembly 13 is significantly reduced. Furthermore, since the material of the injection-molded component 20 is typically a polymer elastomer (or elastic polymer), such as a thermoplastic elastomer (TPE) or a thermoset elastomer (or thermoset rubber), when the injection-molded component 20 on the surface of the sewing thread assembly 13 rubs against the wall of the at least one first sewing hole 111, the cushioning properties of the thermoplastic elastomer offset part of the frictional stress, and the remaining stress reduces the damage to the sewing thread assembly 13, thus extending the service life of the glove structure. Thermoplastic elastomers can be, for example, TPU (Thermoplastic Polyurethane), TPO (Thermoplastic Polyolefin), TPV (Thermoplastic Vulcanizate), TPS / TPR (Thermoplastic Styrenic Elastomer), TPEE (Thermoplastic Polyether Ester Elastomer), and TPA (Thermoplastic Polyamide Elastomer). Thermosetting elastomers can be silicone, for example, LSR (Liquid Silicone Rubber).
[0042] Preferably, the sewing thread assembly 13 and the injection molding assembly 20 fill the entirety of the at least one first sewing hole 111. When a user wears the glove structure and is in use, such as pulling heavy equipment, the sewing thread assembly 13 cannot move within the at least one first sewing hole 111, thus preventing the sewing thread assembly 13 from rubbing against the hole wall of the at least one first sewing hole 111, thereby extending the service life of the glove structure. Preferably, the injection molding assembly 20 extends upward and / or downward from the at least one first sewing hole 111 by a longitudinal injection molding extension section 21, and the sewing thread assembly 13 is connected to the longitudinal injection molding extension section 21. This increases the contact area between the sewing thread assembly 13 and the injection molding component 20, thus preventing the sewing thread assembly 13 and the at least one first sewing hole 111 from moving vertically relative to each other. This also prevents the sewing thread assembly 13 from rubbing against the wall of the at least one first sewing hole 111, thereby extending the service life of the glove structure. Preferably, the injection molding component 20 extends a transverse injection molding extension section 22 along the upper and / or lower surface of the first glove component 11 from the at least one first sewing hole 111. The injection molding component 20 extends along the upper and lower surfaces of the first glove component 11, and the transverse injection molding extension section 22 acts like the arms of pliers, clamping the first glove component 11. This further prevents the sewing thread assembly 13 and the at least one first sewing hole 111 from moving horizontally relative to each other, thus preventing the sewing thread assembly 13 from rubbing against the wall of the at least one first sewing hole 111, and further extending the service life of the glove structure. Preferably, the injection molding component 20, the longitudinal injection molding extension section 21, and the transverse injection molding extension section 22 are integrally molded.
[0043] Please refer to Figure 2D The sewing thread assembly 13 includes a main sewing thread 131, which is a bundle of multiple main fibers 1311. The injection molding component 20 penetrates between at least two of the main fibers 1311. Because the injection molding component 20 penetrates between the main fibers 1311, the strength of the main sewing thread 131 is enhanced, thus enhancing the strength of the sewing thread assembly 13. Therefore, even if the sewing thread assembly 13 rubs against the wall of the at least one first sewing hole 111, the sewing thread assembly 13 is less likely to be damaged. In other words, the strength of the glove structure is enhanced, and the service life of the glove structure is extended.
[0044] Figure 3This is a second embodiment, and the similarities to the first embodiment will not be described again. In the second embodiment, the sewing thread group 13 and the injection molding component 20 are provided in the at least one second sewing hole 121, and the sewing thread group 13 and the injection molding component 20 fill at least a portion of the at least one second sewing hole 121. Preferably, the sewing thread group 13 and the injection molding component 20 fill the entire at least one second sewing hole 121. The injection molding assembly 20 extends a longitudinal injection molding extension section 21 upward and / or downward from the at least one first sewing hole 111 and the at least one second sewing hole 121, respectively. The sewing thread group 13 is connected to the longitudinal injection molding extension section 21. The sewing thread group 13 includes the main sewing thread 131, which is a bundle of multiple main fibers 1311. The injection molding assembly 20 penetrates between two of the main fibers 1311. The injection molding assembly 20 extends a transverse injection molding extension section 22 along the upper surface and / or lower surface of the first glove component 11 and the second glove component 12, respectively, from the at least one first sewing hole 111 and the at least one second sewing hole 121. It should be noted that the sewing thread group 13 located in the at least one first sewing hole 111 and the sewing thread group 13 located in the at least one second sewing hole 121 are the same sewing thread group 13, and the injection molding component 20 located in the at least one first sewing hole 111 and the injection molding component 20 located in the at least one second sewing hole 121 are integrally molded. Furthermore, the injection molding component 20 in contact with the first glove component 11 and the injection molding component 20 in contact with the second glove component 12 are integrally molded. It should be noted that the effects and principles produced by the second embodiment are similar to those of the first embodiment, and therefore will not be described again.
[0045] Figure 4A , Figure 4B , Figure 4C and Figure 4D This is the third embodiment. Please refer to it. Figure 4A The sewing thread assembly 13 further includes a secondary sewing thread 132, the main sewing thread 131 and the secondary sewing thread 132 forming a chain stitch. Please refer to [reference needed]. Figure 4BThe at least one first sewing hole 111 is a plurality of the first sewing holes 111, and the plurality of the first sewing holes 111 form a first sewing area L1, and the first sewing hole array is located in the first sewing area L1; the at least one second sewing hole 121 is a plurality of the second sewing holes 121, and the plurality of the second sewing holes 121 form a second sewing area L2, and the second sewing hole array is located in the second sewing area L2; the second sewing area L2 is disposed above the first sewing area L1, that is, the second sewing hole array is disposed above the first sewing hole array; the first sewing area L1 is disposed above the first glove component 11 that is not in the first sewing area L1 or the first sewing hole array, and the injection molding component 20 extending from the at least one first sewing hole 111 is filled between the first glove component 11 that is not in the first sewing area L1 and the injection molding component 20 extending from the at least one first sewing hole 111. Therefore, by means of the injection molding assembly 20, the second sewing area L2, the first sewing area L1, and the first glove component 11 (excluding the first sewing area L1) are arranged in a sequentially stacked manner, so that... Figure 4B and Figure 4C The structure of this glove will not be as Figure 4A Generally, the second sewing area L2 and the first sewing area L1 are vertical and therefore easily damaged. Therefore, Figure 4B and Figure 4C The lifespan of this glove structure has been extended. Please refer to it again. Figure 4B The injection molding component 20 extends further to the second glove component 12 and is adjacent to the second sewing area L2 but does not contact it. The injection molding component 20 acts like pliers, clamping the first glove component 11 and the second glove component 12, making them less likely to separate rather than relying solely on the sewing mechanism of the sewing thread assembly 13. Therefore, the service life of the glove structure is extended. Please refer again. Figure 4C The injection-molded component 20 further extends into the second sewing area L2. Preferably, the injection-molded component 20 further fills the at least one second sewing hole 121 and is integrally formed with the injection-molded component 20 in the at least one first sewing hole 111. Therefore, the injection-molded component 20 disposed in the at least one first sewing hole 111, the injection-molded component 20 in the at least one second sewing hole 121, the injection-molded component 20 in the second sewing area L2, and the injection-molded component 20 between the first sewing area L1 and the first glove component 11 not in the first sewing area L1 are integrally formed. Therefore, the injection-molded component 20 forms a rivet-like structure to fasten the first glove component 11 and the second glove component 12 together instead of relying solely on the sewing mechanism of the sewing thread group 13 for maintenance, thus extending the service life of the glove structure. Please refer to the following. Figure 4DThe sewing thread 132 is a bundle of multiple sub-fibers 1321, and the injection molding component 20 is inserted between at least two of the sub-fibers 1321. Because the injection molding component 20 is inserted between the multiple sub-fibers 1321, the strength of the sewing thread 132 is enhanced, that is, the strength of the sewing thread assembly 13 is enhanced. Therefore, the strength of the glove structure is enhanced, and the service life of the glove structure is extended.
[0046] Figure 5A , Figure 5B and Figure 5C This is the fourth embodiment. Please refer to it. Figure 5A The main sewing thread 131 and the secondary sewing thread 132 form a lock stitch. The fourth embodiment differs from the third embodiment mainly in the sewing method, so the rest will not be described in detail.
[0047] The present invention also provides a method for manufacturing a glove structure. First, a glove 10, at least composed of a first glove component 11 and a second glove component 12, is provided by sewing together using a sewing machine. Next, a mold assembly is provided, comprising an inner mold and an outer mold. The inner mold is a hand-shaped mold. After the outer mold and the inner mold are joined, a mold cavity is formed to accommodate a liquid injection molding material. The glove 10 is fitted onto the outer surface of the inner mold, and the glove 10 is subjected to tension to prevent the sewing thread assembly 13 from filling the entire first sewing hole 111. For example, the glove 10, which has a smaller size (M), is fitted onto the inner mold, which has a larger size (L), thus subjecting the glove 10 to tension. Then, the outer mold and... The inner mold is closed to form a mold cavity, and the at least one first sewing hole 111 is located in the mold cavity, or the at least one first sewing hole 111 is not located in the mold cavity but is adjacent to the mold cavity; the thermoplastic elastomer is heated and melted into the liquid injection molding material, or the liquid raw material of the thermosetting elastomer, such as LSR, is used as the liquid injection molding material without heating, and a predetermined mold cavity pressure and a predetermined mold cavity temperature are applied to allow the liquid injection molding material to flow into the mold cavity and contact the glove 10; the temperature of the liquid injection molding material in the mold cavity is lowered to below a predetermined mold opening temperature, and the mold is opened to separate the inner mold from the outer mold; the glove 10 is peeled off from the inner mold to obtain the glove structure, and the liquid injection molding material in contact with the glove 10 is cooled to form the injection molding assembly 20. In other words, when manufacturing the glove structure, the at least one first sewing hole 111 of the glove 10 is located in the mold cavity, or the at least one first sewing hole 111 is not located in the mold cavity but is adjacent to the mold cavity. The predetermined mold cavity pressure is 20 bar to 90 bar, preferably 30 bar to 70 bar. The predetermined mold cavity pressure can assist the liquid injection molding material to penetrate between the two main fibers 1311 or the two secondary fibers 1321 of the sewing thread assembly 13. The predetermined mold cavity temperature is, for example, between 100 degrees Celsius and 250 degrees Celsius.
[0048] In order for the liquid injection molding material to enter the at least one first sewing hole 111 within the mold cavity, and preferably for the liquid injection molding material to penetrate between at least two of the plurality of main fibers 1311, the polymer elastomer, for example, is a thermoplastic elastomer having a melt index (MI, or Melt Flow Rate, MFR) measured under ASTM D1238, 190°C / 2.16kg conditions of not less than 2 g / 10 min and not more than 40 g / 10 min, preferably not less than 5 g / 10 min and not more than 35 g / 10 min. The polymer elastomer, for example, is a thermosetting elastomer using platinum as a catalyst, meaning that the injection molding component 20, the liquid injection molding material, or the polymer elastomer contains platinum. Given that users will wear this glove structure and pull heavy equipment, to prevent damage to the injection-molded component 20, the thermoplastic elastomer or thermosetting elastomer has a Shore A hardness of not less than 0 Shore A as measured by ASTM D2240; however, to avoid the injection-molded component 20 being too hard and affecting operational flexibility, the thermoplastic elastomer or thermosetting elastomer has a Shore A hardness of not more than 50 Shore A as measured by ASTM D2240. Preferably, the Shore A hardness is not less than 5 Shore A and not more than 30 Shore A. Because the injection-molded component 20 is infiltrated between a plurality of the main fibers 1311 to enhance the strength of the sewing thread assembly 13, but without making the sewing thread assembly 13 excessively strong, the thermoplastic elastomer or the thermosetting elastomer has a tensile strength of not less than 1 MPa and not more than 10 MPa as measured by ASTM D412; preferably, the tensile strength is not less than 1.5 MPa and not more than 8 MPa. Furthermore, the thermoplastic elastomer or the thermosetting elastomer has an elongation at break of not less than 300% and not more than 1500% as measured by ASTM D412 to ensure that the injection-molded component 20 will not break when the user wears the glove structure and repeatedly pulls heavy equipment; preferably, the elongation at break is not less than 500% and not more than 850%. Furthermore, the thermoplastic elastomer or the thermosetting elastomer has a tear strength of not less than 2 kN / m and not more than 35 kN / m as measured by ASTM D624 Die C, so that even if the injection-molded component 20 has an initial crack, it can still effectively suppress crack propagation; preferably, the tear strength is not less than 4 kN / m and not more than 20 kN / m.
Claims
1. A glove structure comprising a glove (10) and an injection molding assembly (20), the glove (10) comprising a first glove component (11) and a second glove component (12), the first glove component (11) having at least one first sewing hole (111), the second glove component (12) having at least one second sewing hole (121), the at least one first sewing hole (111) and the at least one second sewing hole (121) being correspondingly arranged, and a sewing thread assembly (13) sewing together the first glove component (11) and the second glove component (12) through the at least one first sewing hole (111) and the at least one second sewing hole (121), characterized in that: The at least one first sewing hole (111) is provided with the sewing thread group (13) and the injection molding component (20), the sewing thread group (13) is connected to the injection molding component (20), and the sewing thread group (13) and the injection molding component (20) fill at least a portion of the at least one first sewing hole (111).
2. The glove structure as described in claim 1, characterized in that, The injection-molded assembly (20) extends upward and / or downward from the at least one first sewing hole (111) by a longitudinal injection-molded extension section (21), and the sewing thread assembly (13) is connected to the longitudinal injection-molded extension section (21).
3. The glove structure as described in claim 1, characterized in that, The sewing thread assembly (13) includes a main sewing thread (131) which is a bundle of multiple main fibers (1311) and the injection molding assembly (20) penetrates between at least two of the multiple main fibers (1311).
4. The glove structure as described in claim 3, characterized in that, The sewing thread assembly (13) further includes a sewing thread (132), the main sewing thread (131) and the sewing thread (132) forming a chain stitch or lock stitch, the sewing thread (132) being a bundle of multiple sub-fibers (1321), the injection molding component (20) penetrating between at least two of the multiple sub-fibers (1321).
5. The glove structure as described in claim 1, characterized in that, The injection-molded assembly (20) extends a transverse injection-molded extension section (22) along the upper and / or lower surface of the first glove component (11) from the at least one first sewing hole (111).
6. The glove structure as described in claim 1, characterized in that, The sewing thread assembly (13) and the injection molding assembly (20) are provided in the at least one second sewing hole (121), and the sewing thread assembly (13) and the injection molding assembly (20) fill at least a portion of the at least one second sewing hole (121).
7. The glove structure as described in claim 6, characterized in that, The injection molding assembly (20) extends a longitudinal injection molding extension section (21) upward and / or downward from the at least one first sewing hole (111) and the at least one second sewing hole (121), respectively. The sewing thread group (13) is connected to the longitudinal injection molding extension section (21). The sewing thread group (13) includes a main sewing thread (131), which is a bundle of multiple main fibers (1311). The injection molding assembly (20) penetrates between two of the main fibers (1311). The injection molding assembly (20) extends a transverse injection molding extension section (22) along the upper surface and / or lower surface of the first glove component (11) and the second glove component (12), respectively, from the at least one first sewing hole (111) and the at least one second sewing hole (121).
8. The glove structure as described in claim 7, characterized in that, The first glove component (11) is located above the second glove component (12), and the injection molding assembly (20) extends from the at least one first sewing hole (111) to the upper surface of the second glove component (12) and / or the upper surface of the first glove component (11).
9. The glove structure as described in claim 1, characterized in that, The at least one first sewing hole (111) is a plurality of the first sewing holes (111), and the plurality of the first sewing holes (111) form a first sewing area (L1); the at least one second sewing hole (121) is a plurality of the second sewing holes (121), and the plurality of the second sewing holes (121) form a second sewing area (L2); the second sewing area (L2) is disposed above the first sewing area (L1), and the first sewing area (L1) is disposed above the first glove component (11) other than the first sewing area (L1) and is filled with the injection molding component (20) extending from the at least one first sewing hole (111) between it and the first glove component (11) other than the first sewing area (L1).
10. The glove structure as described in claim 9, characterized in that, The injection molding component (20) extends further to the second sewing area (L2), or the injection molding component (20) extends further to the second glove component (12) and is adjacent to the second sewing area (L2) but does not contact the second sewing area (L2).
11. The glove structure as claimed in claim 1, characterized in that, When the glove structure is made, the glove (10) is placed in a mold cavity; and a liquid injection molding material is injected into the mold cavity and comes into contact with the glove (10) under a predetermined mold cavity pressure, and the liquid injection molding material in contact with the glove (10) becomes the injection molding component (20) after cooling.
12. The glove structure as described in claim 1 or 11, characterized in that, The material of the injection-molded component (20) is silicone.
13. The glove structure as claimed in claim 1, characterized in that, The material of the injection-molded component (20) is a polymer elastomer; the polymer elastomer has a melt index of not less than 2 g / 10 min and not more than 40 g / 10 min as measured under ASTM D1238, 190 °C / 2.16 kg conditions; the polymer elastomer has a Shore A hardness of not less than 0 Shore A and not more than 50 Shore A as measured under ASTM D2240.
14. The glove structure as claimed in claim 1, characterized in that, The polymer elastomer has a tensile strength of not less than 1 MPa and not more than 10 MPa as measured by ASTM D412; the polymer elastomer has an elongation at break of not less than 300% and not more than 1500% as measured by ASTM D412; and the polymer elastomer has a tear strength of not less than 2 KN / m and not more than 35 KN / m as measured by ASTM D624 Die C.