CN108819090B - Method for manufacturing breathable buffering insole - Google Patents
Method for manufacturing breathable buffering insole Download PDFInfo
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- CN108819090B CN108819090B CN201810534265.8A CN201810534265A CN108819090B CN 108819090 B CN108819090 B CN 108819090B CN 201810534265 A CN201810534265 A CN 201810534265A CN 108819090 B CN108819090 B CN 108819090B
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- memory film
- layer
- breathable
- insole
- shock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/08—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined ventilated
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/042—Punching
Abstract
The invention provides a manufacturing method of a breathable buffering insole, which comprises the steps of material selection and cutting, the step of forming a groove on the bottom surface of an arch support layer, the step of compounding a suction groove, the step of compounding a lower-layer memory film and an upper-layer memory film together in a high-frequency mode to obtain a shock-absorbing breathable memory film layer with an insole shape, and the shock-absorbing breathable memory film layer compounded with the support layer is placed into an injection mold to be subjected to injection molding to form an insole body; the formed insole body is demoulded and trimmed to obtain the shock-absorbing breathable insole which is simple and ingenious in overall manufacturing process, firm in overall connection and high in forming efficiency.
Description
Technical Field
The invention relates to the technical field of insoles, in particular to a manufacturing method of a breathable buffering insole.
Background
Most common insoles in the market adopt solid structures, physical properties of materials such as EVA are utilized for cushioning, but the materials are limited by the performance of the materials, a compression limit and a rebound limit can not react quickly after the materials are impacted by the sole, and the materials are aged and collapsed after being used for a period of time, so that the cushioning and shock absorption effects can not be realized; the insole has poor air permeability and is easy to cause the sole of the foot to sweat.
Therefore, as shown in fig. 1 and fig. 2, the inventor of the present invention has studied a TPU shock-absorbing and breathable insole, which includes an insole body 1, and shock-absorbing and breathable memory film layers disposed on a heel region and a palm region at the bottom of the insole body 1, wherein the shock-absorbing and breathable memory film layers include an upper memory film 31 and a lower memory film 32 connected to the lower surface of the insole body 1, concave grooves 321 are uniformly formed on the bottom surface of the lower memory film 32, suction holes 322 are formed at the positions of the lower memory film 32, staggered from the concave grooves 321, and vent holes 311 are correspondingly formed on the upper memory film 31 and the insole body 1. The concave groove 321 is in a truncated cone shape or a square shape. The bottom a' of the concave groove is fixedly connected with the upper memory film 31, the lower memory film 32 and the upper memory film 31 are staggered with the concave grooves 321 to form a ventilating cavity 33, a supporting layer 4 is arranged at the bottom of the insole body 1 and located at the arch of foot, the supporting layer 4 extends towards the heel area, and the shock-absorbing ventilating memory film layer in the heel area penetrates out of the bottom surface of the supporting layer 4. For more comfortable wearing, the surface of the insole body is also provided with a cloth surface layer 5. When the shoe pad is used for walking, when the heel part of a human body is lifted, gas is sucked in the breathable cavity through the suction hole, when the heel part of the foot is grounded, the heel of the human body exerts pressure on the shock absorption memory film layer, the gas is discharged from the exhaust hole, and on the same reason, when the palm part of the foot is lifted, the gas is sucked in the breathable cavity through the suction hole, when the palm part of the foot is grounded, the heel of the human body exerts pressure on the shock absorption memory film layer, the gas in the breathable cavity is discharged from the exhaust hole, the ventilation effect is achieved through repeated circulation, the air is sucked in the cavity in the heel area and the breathable cavity in the half sole area in a crossed mode, the air circulation in the shoe can be achieved, the air permeability is greatly enhanced, meanwhile, the shock absorption breathable memory film layer is provided with an inwards.
The insole greatly enhances the fluidity of air in the shoe, has strong air permeability, prevents the sole from sweating and improves the comfort; the shock-absorbing breathable memory film layer adopts a reasonable concave structure and the high elasticity characteristic of the shock-absorbing breathable memory film layer, so that the buffering effect is improved, and the impact on feet during movement is weakened. However, no simple and reasonable method for producing the insole exists in the market at present, so that the production of the insole is limited.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides a manufacturing method for manufacturing the breathable buffering insole, which is simple and reasonable in manufacturing process and high in production efficiency.
In order to realize the technical problem, the invention adopts the solution that the manufacturing method of the breathable buffering insole comprises the following steps:
1) selecting materials and cutting: cutting the lower memory film and the upper memory film to obtain the lower memory film and the upper memory film with the shapes corresponding to the soles of the feet of the human bodies, and cutting the arch support layer to enable the shapes of the arch support layer to correspond to the positions of the arches and the heels of the lower memory film;
2) conveying the arch support layer to a vacuum forming roller of a vacuum plastic-absorbing machine at a constant speed for bottom surface groove-absorbing treatment, wherein the surface of the vacuum forming roller is provided with an inner concave groove for forming the bottom surface groove of the arch support layer;
3) and a step of compounding suction grooves: conveying the lower-layer memory film to a vacuum plastic uptake machine with an arch support layer adsorbed on the surface at a constant speed of 9-11 m/min, carrying out surface groove absorption treatment on a half sole and an arch part of the lower-layer memory film by a vacuum plastic uptake roller, wherein the surface of the vacuum plastic uptake roller is provided with an adsorption groove for forming an inwards concave groove of the lower-layer memory film, thermally compounding the arch support layer on the arch position of the lower-layer memory film by using the plastic uptake temperature and the plastic uptake pressure during plastic uptake when carrying out the surface groove absorption treatment on the lower-layer memory film, and cooling the lower-layer memory film and the arch support layer with the inwards concave groove adsorbed on the surfaces to obtain the lower-layer memory film with the evenly distributed inwards concave grooves on the bottom surface and the compounded arch support layer;
4) combining the lower memory film and the upper memory film together in a high-frequency manner, so that the bottom of the groove of the concave groove of the lower memory film is fixedly connected with the upper memory film, and the lower memory film and the upper memory film are staggered with the concave grooves to form a breathable cavity, thereby obtaining the shock-absorbing breathable memory film with the breathable cavity and the arch support layer;
5) feeding the shock-absorbing and air-permeable memory film layer into a punching machine, forming suction holes at the positions of the lower-layer memory film staggered with the inner concave grooves, and simultaneously forming an exhaust hole at the position of the upper-layer memory film corresponding to each suction hole;
6) and the forming step of the insole body: placing the shock-absorbing breathable memory film layer compounded with the arch support layer into an injection mold to form an insole body in an injection molding mode;
7) and demolding and trimming the molded insole body to obtain the shock-absorbing breathable insole.
The further improvement is that: the plastic suction pressure is 5-9.2 kg, the plastic suction temperature is 260-300 ℃, and the plastic suction time is 24-30 seconds.
The further improvement is that: the memory shock absorption layer is made of TPU thermoplastic polyurethane.
By adopting the technical scheme, the invention has the beneficial effects that: the inner concave groove of the lower memory film layer is formed by hot plastic-sucking through a vacuum plastic-sucking roller, the inner concave groove of the lower memory film layer is formed and then is in hot-melt composite connection with the upper memory film layer, so that a high-elastic shock-absorbing buffering structure with an inner concave structure is formed, meanwhile, a ventilating cavity with a gas-sucking and exhausting function is formed between the lower memory film layer and the upper memory film layer which are not internally concave, then a supporting layer is compounded at the arch part on the bottom surface of the shock-absorbing ventilating memory film, so that the insole body has support at the arch position, the wearing comfort level is improved, and finally the shock-absorbing ventilating memory film layer compounded with the supporting layer is placed into; the whole manufacturing process is simple and ingenious, the whole insole is firmly connected, and the forming efficiency is high.
Drawings
Fig. 1 is a bottom view of a shock-absorbing breathable insole according to an embodiment of the present invention.
Fig. 2 is a sectional view a-a of a shock-absorbing breathable insole according to an embodiment of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the shock-absorbing breathable insole disclosed in the embodiment of the present invention includes an insole body 1, and shock-absorbing breathable memory film layers disposed on a heel area and a fore-sole area at the bottom of the insole body 1, where the shock-absorbing breathable memory film layers include an upper memory film 31 and a lower memory film 32 connected to a lower surface of the insole body 1, and the upper and lower memory film layers are made of TPU thermoplastic polyurethane. Concave grooves 321 are uniformly distributed on the bottom surface of the lower memory film 32, suction holes 322 are formed in the positions, staggered from the concave grooves 321, of the lower memory film 32, and exhaust holes 311 are correspondingly formed in the upper memory film 31 and the insole body 1. The concave groove 321 is in a truncated cone shape or a square shape. The bottom a' of the concave groove is fixedly connected with the upper memory film 31, the lower memory film 32 and the upper memory film 31 are staggered with the concave grooves 321 to form a ventilating cavity 33, a supporting layer 4 is arranged at the bottom of the insole body 1 and located at the arch of foot, the supporting layer 4 extends towards the heel area, and the shock-absorbing ventilating memory film layer in the heel area penetrates out of the bottom surface of the supporting layer 4. For more comfortable wearing, the surface of the insole body is also provided with a cloth surface layer 5. When the shoe pad is used for walking, when the heel part of a human body is lifted, gas is sucked in the breathable cavity through the suction hole, when the heel part of the foot is grounded, the heel of the human body exerts pressure on the shock absorption memory film layer, the gas is discharged from the exhaust hole, and on the same reason, when the palm part of the foot is lifted, the gas is sucked in the breathable cavity through the suction hole, when the palm part of the foot is grounded, the heel of the human body exerts pressure on the shock absorption memory film layer, the gas in the breathable cavity is discharged from the exhaust hole, the ventilation effect is achieved through repeated circulation, the air is sucked in the cavity in the heel area and the breathable cavity in the half sole area in a crossed mode, the air circulation in the shoe can be achieved, the air permeability is greatly enhanced, meanwhile, the shock absorption breathable memory film layer is provided with an inwards.
The manufacturing method of the breathable buffering insole comprises the following steps:
1) selecting materials and cutting: cutting the lower memory film and the upper memory film to obtain the lower memory film and the upper memory film with the shapes corresponding to the soles of the feet of the human bodies, and cutting the arch support layer to enable the shapes of the arch support layer to correspond to the positions of the arches and the heels of the lower memory film;
2) conveying the arch support layer to a vacuum forming roller of a vacuum plastic-absorbing machine at a constant speed for bottom surface groove-absorbing treatment, wherein the surface of the vacuum forming roller is provided with an inner concave groove for forming the bottom surface groove of the arch support layer;
3) and a step of compounding suction grooves: the method comprises the steps that a lower-layer memory film is conveyed to a vacuum plastic uptake machine with an arch support layer adsorbed on the surface at a constant speed of 9-11 m/min, a vacuum plastic uptake roller carries out surface groove absorption treatment on a half sole and an arch part of the lower-layer memory film, an adsorption groove used for forming an inwards concave groove of the lower-layer memory film is formed in the surface of the vacuum plastic uptake roller, when the vacuum plastic uptake roller carries out surface groove absorption treatment on the lower-layer memory film, the arch support layer is thermally compounded on the arch position of the lower-layer memory film by using the plastic uptake temperature and the plastic uptake pressure during plastic uptake, the plastic uptake pressure of the vacuum plastic uptake roller is 7 kilograms, the plastic uptake temperature is 280 ℃, and the plastic uptake time is 27 seconds. Cooling the lower memory film with the concave grooves adsorbed on the surface and the arch support layer to obtain the lower memory film with the concave grooves uniformly distributed on the bottom surface and the arch support layer;
4) combining the lower memory film and the upper memory film together in a high-frequency manner, so that the bottom of the groove of the concave groove of the lower memory film is fixedly connected with the upper memory film, and the lower memory film and the upper memory film are staggered with the concave grooves to form a breathable cavity, thereby obtaining the shock-absorbing breathable memory film with the breathable cavity and the arch support layer;
5) feeding the shock-absorbing and air-permeable memory film layer into a punching machine, forming suction holes at the positions of the lower-layer memory film staggered with the inner concave grooves, and simultaneously forming an exhaust hole at the position of the upper-layer memory film corresponding to each suction hole;
6) and the forming step of the insole body: placing the shock-absorbing breathable memory film layer compounded with the arch support layer into an injection mold to form an insole body in an injection molding mode;
7) and demolding and trimming the molded insole body to obtain the shock-absorbing breathable insole.
The inner concave groove of the lower memory film layer is formed by hot plastic-sucking through a vacuum plastic-sucking roller, the inner concave groove of the lower memory film layer is formed and then is in hot-melt composite connection with the upper memory film layer, so that a high-elastic shock-absorbing buffering structure with an inner concave structure is formed, meanwhile, a ventilating cavity with a gas-sucking and exhausting function is formed between the lower memory film layer and the upper memory film layer which are not internally concave, then a supporting layer is compounded at the arch part on the bottom surface of the shock-absorbing ventilating memory film, so that the insole body has support at the arch position, the wearing comfort level is improved, and finally the shock-absorbing ventilating memory film layer compounded with the supporting layer is placed into; the whole manufacturing process is simple and ingenious, the whole insole is firmly connected, and the forming efficiency is high.
Based on the technical scheme: the plastic suction pressure of the vacuum plastic suction roller is only 5-9.2 kilograms, the plastic suction temperature is only 260-300 ℃, the plastic suction time is only 24-30 seconds, and the lower-layer memory film is conveyed to a vacuum plastic suction machine at a constant speed of 9-11 m/min to achieve the purpose of the invention.
Modifications and variations of the present invention are within the scope of the claims and are not limited by the disclosure of the embodiments.
Claims (3)
1. The manufacturing method of the breathable buffering insole is characterized in that: the breathable buffering insole comprises an insole body and shock-absorbing breathable memory film layers arranged on a heel area and a half sole area at the bottom of the insole body, wherein the shock-absorbing breathable memory film layers comprise an upper memory film and a lower memory film which are connected with the lower surface of the insole body, concave grooves are uniformly distributed on the bottom surface of the lower memory film, suction holes are formed in the positions, staggered with the concave grooves, of the lower memory film, vent holes are correspondingly formed in the upper memory film and the insole body, the bottoms of the concave grooves are fixedly connected with the upper memory film, breathable cavities are formed in the positions, staggered with the concave grooves, of the lower memory film and the upper memory film, the bottom of the insole body is provided with a supporting layer at an arch part, the supporting layer extends towards the heel area, and the shock-absorbing breathable memory film layers in the heel area penetrate out of the bottom surface;
the manufacturing method of the breathable buffering insole comprises the following steps:
1) selecting materials and cutting: cutting the lower memory film and the upper memory film to obtain the lower memory film and the upper memory film with the shapes corresponding to the soles of the feet of the human bodies, and cutting the arch support layer to enable the shapes of the arch support layer to correspond to the positions of the arches and the heels of the lower memory film;
2) conveying the arch support layer to a vacuum forming roller of a vacuum plastic-absorbing machine at a constant speed for bottom surface groove-absorbing treatment, wherein the surface of the vacuum forming roller is provided with an inner concave groove for forming the bottom surface groove of the arch support layer;
3) and a step of compounding suction grooves: conveying the lower-layer memory film to a vacuum plastic uptake machine with an arch support layer adsorbed on the surface at a constant speed of 9-11 m/min, carrying out surface groove absorption treatment on a half sole and an arch part of the lower-layer memory film by a vacuum plastic uptake roller, wherein the surface of the vacuum plastic uptake roller is provided with an adsorption groove for forming an inwards concave groove of the lower-layer memory film, thermally compounding the arch support layer on the arch position of the lower-layer memory film by using the plastic uptake temperature and the plastic uptake pressure during plastic uptake when carrying out the surface groove absorption treatment on the lower-layer memory film, and cooling the lower-layer memory film and the arch support layer with the inwards concave groove adsorbed on the surfaces to obtain the lower-layer memory film with the evenly distributed inwards concave grooves on the bottom surface and the compounded arch support layer;
4) combining the lower memory film and the upper memory film together in a high-frequency manner, so that the bottom of the groove of the concave groove of the lower memory film is fixedly connected with the upper memory film, and the lower memory film and the upper memory film are staggered with the concave grooves to form a breathable cavity, thereby obtaining a shock-absorbing breathable memory film layer with the breathable cavity and a composite arch support layer;
5) feeding the shock-absorbing and air-permeable memory film layer into a punching machine, forming suction holes at the positions of the lower-layer memory film staggered with the inner concave grooves, and simultaneously forming an exhaust hole at the position of the upper-layer memory film corresponding to each suction hole;
6) and the forming step of the insole body: placing the shock-absorbing breathable memory film layer compounded with the arch support layer into an injection mold to form an insole body in an injection molding mode;
7) and demolding and trimming the molded insole body to obtain the shock-absorbing breathable insole.
2. The method of making a breathable cushioning insole according to claim 1, wherein: the plastic suction pressure is 5-9.2 kg, the plastic suction temperature is 260-300 ℃, and the plastic suction time is 24-30 seconds.
3. The method of making a breathable cushioning insole according to claim 1, wherein: the material of the shock-absorbing breathable memory film layer is thermoplastic polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534265.8A CN108819090B (en) | 2018-05-29 | 2018-05-29 | Method for manufacturing breathable buffering insole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534265.8A CN108819090B (en) | 2018-05-29 | 2018-05-29 | Method for manufacturing breathable buffering insole |
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| Publication Number | Publication Date |
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| CN108819090A CN108819090A (en) | 2018-11-16 |
| CN108819090B true CN108819090B (en) | 2020-11-03 |
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| CN201810534265.8A Active CN108819090B (en) | 2018-05-29 | 2018-05-29 | Method for manufacturing breathable buffering insole |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210026043U (en) * | 2018-12-07 | 2020-02-07 | 东莞达音创研实业有限公司 | Hot-melting connecting structure of multi-layer product and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130097104A (en) * | 2012-02-23 | 2013-09-02 | 김광호 | Method of manufacturing insole using a thermoplastic hard film |
| CN104918509A (en) * | 2012-08-31 | 2015-09-16 | 斯彭科医疗公司 | Basketball insole |
| CN107095391A (en) * | 2017-06-23 | 2017-08-29 | 吴佳钦 | A kind of environmental-protecting insoles and preparation method thereof |
| CN108712868A (en) * | 2016-02-26 | 2018-10-26 | 耐克创新有限合伙公司 | Insole with whole flanging |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130180023A1 (en) * | 2012-01-17 | 2013-07-18 | Skysole Corporation | Cushioning device with ventilation |
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2018
- 2018-05-29 CN CN201810534265.8A patent/CN108819090B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130097104A (en) * | 2012-02-23 | 2013-09-02 | 김광호 | Method of manufacturing insole using a thermoplastic hard film |
| CN104918509A (en) * | 2012-08-31 | 2015-09-16 | 斯彭科医疗公司 | Basketball insole |
| CN108712868A (en) * | 2016-02-26 | 2018-10-26 | 耐克创新有限合伙公司 | Insole with whole flanging |
| CN107095391A (en) * | 2017-06-23 | 2017-08-29 | 吴佳钦 | A kind of environmental-protecting insoles and preparation method thereof |
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| CN108819090A (en) | 2018-11-16 |
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