WO2016031747A1 - インナーブーツ - Google Patents
インナーブーツ Download PDFInfo
- Publication number
- WO2016031747A1 WO2016031747A1 PCT/JP2015/073656 JP2015073656W WO2016031747A1 WO 2016031747 A1 WO2016031747 A1 WO 2016031747A1 JP 2015073656 W JP2015073656 W JP 2015073656W WO 2016031747 A1 WO2016031747 A1 WO 2016031747A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inner boot
- boot
- sports
- foot
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0405—Linings, paddings or insertions; Inner boots
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B19/00—Shoe-shaped inserts; Inserts covering the instep
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
- A43B23/07—Linings therefor
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0405—Linings, paddings or insertions; Inner boots
- A43B5/0409—Linings, paddings or insertions; Inner boots with means for attaching inner boots or parts thereof to shells of skiboots
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0486—Ski or like boots characterized by the material
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/16—Skating boots
- A43B5/1616—Inner boots
Definitions
- the present invention relates to an inner boot that is removably inserted into an outer boot.
- Sports boots include, for example, snowboard boots and ski boots.
- the inner boot for sports fits in the outer boot between the outer boot and the user's foot.
- the sports inner boot is removable from the outer boot or is fixed to the outer boot.
- Conventional snowboard boots include, for example, boot-type inner boots and outer boots.
- conventional inner boots for snowboards have inner and outer objects laminated with a cloth, and the inner side is inserted into an outer boot coated with a cloth. Further, a cushion is provided between the inner boot and the outer boot in the range from the top of the heel portion to the top of the ankle level, that is, the bottom range of the trunk portion (for example, refer to Patent Document 1 (see paragraph 0018)). .
- the conventional snowboard or ski inner boot has a problem of hygiene in using the snowboard or ski inner boot.
- Other sports inner boots have similar problems. *
- an object of the present invention is to provide an inner boot which can be taken out from the outer boot and easily washed inside, and can be dried in a relatively short time.
- the inner boot of the present invention is an inner boot made of thermoplastic plastic that is detachably inserted into the outer boot, and includes a bottom plate portion disposed in the outer boot, and a foot bag portion formed on the bottom plate portion.
- the bottom plate portion and the footpad portion are integrally formed, and the thermoplastic material contains an ethylene vinyl acetate copolymer material (EVA).
- EVA ethylene vinyl acetate copolymer material
- examples of the inner boot of the present invention include an inner boot for sports and an inner boot for work.
- Sports boots include snowboard inner boots, ski inner boots, alpine ski inner boots, skating inner boots, ice hockey inner boots, other winter sports inner boots, roller skating inner boots, inline skating inner boots Boots, mountaineering inner boots, motorcycle inner boots, golf inner boots and other outdoor sports inner boots.
- Examples of the inner boot for work include an inner boot for winter shoes, an inner boot for boots, and other inner boots for work.
- the inner boot of the present invention is preferably used for snowboarding, skiing, skating, roller skating, inline skating, and ice skating, and more preferably suitable for snowboarding, skiing, or water jumping. It can also be used for inner boots for work shoes. It is also suitable for these rental applications.
- the ethylene-vinyl acetate copolymer has good form compatibility to be molded into an arbitrary shape, and the thickness can be changed partially.
- Changing the wall thickness in a partial portion is called a so-called uneven thickness structure.
- the inner boot can have an uneven thickness structure in which the thickness on the inner side is changed while the outer side on the outer boot side is left as it is along the shape of the user's foot.
- this uneven thickness structure it is possible to fit the user's foot firmly, and it is difficult to absorb the impact in the portion where the thickness is thin, but it is easy to absorb the impact in the portion where the thickness is thick.
- this inner boot When this inner boot is used for sports applications such as snowboarding or skiing, for example, it is waterproof and has a good feeling of footing and can hold the foot firmly. For this reason, it is particularly suitable for sports applications that require balance balance sensation for applying force, agility for instantaneous movement, and cushioning.
- the hardness is comparatively soft at 30 ° or more and less than 45 ° and has an uneven thickness structure, only the inner boots are excellent in impact resistance without using a cushion material.
- the foot When used for inner boots for work shoes, the foot can be firmly held, so it has excellent heat retention and workability.
- the inner boot surface may be subjected to surface treatment such as embossing or unevenness that does not penetrate.
- the inner boot preferably has a vinyl acetate content of 10 to 45%, preferably 15% or more and less than 45%, more preferably 25 to 43%.
- the inner boot is preferably made of a thermoplastic material containing a plurality of ethylene vinyl acetate copolymers having different vinyl acetate contents.
- the inner boot has an openable front opening formed by forming the upper part of the foot wrap part into a substantially cylindrical shape and forming a notch part from the lip to the instep of the front part, and the front opening is closed.
- a front opening / closing body formed integrally with the foot bag portion may be provided.
- the inner boot has an expandable rear opening in which the upper portion of the foot wrap portion is formed in a substantially cylindrical shape and the rear portion is formed from the mouth edge to the heel portion to form a notch, and the rear opening is closed. And a rear opening / closing body integrally formed with the foot bag portion.
- the inner boot has an expandable side opening formed by forming a top portion of the foot wrap portion in a substantially cylindrical shape and forming a notch portion on the side portion from the mouth edge to one heel portion, You may provide the side opening / closing body integrally formed in the said foot wrap part so that an opening part can be closed.
- an inner boot made of thermoplastic plastic that is detachably inserted into the outer boot, the bottom plate portion being disposed in the outer boot, and the bottom plate portion.
- the bottom plate part and the foot bag part are integrally formed, and the thermoplastic material contains an ethylene vinyl acetate copolymer material (EVA). Therefore, it has the characteristic that it is stable in water, it can be taken out from the outer boot and easily washed inside, and the drying time can be made in a relatively short time.
- EVA ethylene vinyl acetate copolymer material
- the vinyl acetate content is 10 to 45%, the vinyl acetate content is low. Compared to the above, the crystallinity is lowered, the flexibility is increased, and sufficient elasticity and flexibility can be provided to support the user's foot.
- the inner boot described in claim 3 of the present invention in addition to the effect produced by the inner boot described in claim 1 or 2, it is possible to express high flexibility even at a low temperature, and to improve the comfort. It can be good.
- the upper portion of the footpack portion is formed in a substantially cylindrical shape and its front portion A front opening that can be expanded from the mouth edge to the instep, and a front opening / closing body that is integrally formed with the footpad so that the front opening can be closed. Therefore, there is an effect that the user can easily put on and take off by opening the front opening / closing body and inserting the foot.
- the upper portion of the foot wrap portion is formed in a substantially cylindrical shape and the rear portion is formed.
- the upper portion of the foot wrap portion is formed in a substantially cylindrical shape and the side portion thereof.
- FIG. 1 is a perspective view showing an embodiment of an inner boot for sports.
- FIG. 2 is a partial sectional view taken along line BB in FIG.
- FIG. 3 is a perspective view showing a usage state of the sports inner boot.
- FIG. 4 is a perspective view showing a second embodiment of the sports inner boot.
- FIG. 5 is a perspective view showing a third embodiment of an inner boot for sports.
- FIG. 6 is a perspective view showing a fourth embodiment of the sports inner boot.
- the inner boot 100 for sports of this embodiment is provided with the baseplate part 10, the footpack part 20, the front opening part 30, and the front opening / closing body 40, as shown in FIG.
- the inner boot 100 for sports is made of thermoplastic plastic, has a substantially tubular cross section, and is formed in a substantially L shape in vertical section, and is used by being detachably inserted into a snowboard or ski outer boot.
- the product hardness of the inner boot 100 for sports is 25 to 55 °.
- the bottom plate portion 10 is inserted into a snow boat or ski outer boot, and is used between the sole of the user and the outer boot.
- the bottom plate portion 10 includes a stepping portion, a stepping portion, and a collar portion.
- the arch portion corresponding to the arch of the user adopts an uneven thickness structure that is formed thicker than other stepping portions and heel portions.
- the foot wrap part 20 is a part that wraps the user's foot, and is a part that corresponds to a part called an upper part or an upper part in terms generally used in shoes.
- the foot bag part 20 is formed integrally with the bottom plate part 10.
- the foot packet part 20 includes an upper surface part 21, a side part 22, and a tubular part 23.
- the upper surface portion 21 is a portion that covers the toes of the user's feet.
- the upper surface portion 21 is formed so as to draw an arc so as to have a peak at one point A1 corresponding to the second finger of the toe of the user.
- the side part 22 is a part that covers the back from the side of the user's foot, and is disposed on both sides of the sports inner boot 100.
- the side surface portions 22 and 22 are connected to the upper surface portion 21, are integrated at the rear center of the sports inner boot 100, and are connected to the tubular portion 23.
- the cylindrical portion 23 is a portion that covers the user's back and shin, and the upper portion of the footpack portion 20 is formed in a substantially cylindrical shape and has a front opening 30.
- the front opening 30 is a part of the expandable footpack 20 in which both notches 26 and 26 are formed by extending the front part of the tubular part 23 from the mouth edge 24 to the upper part 25.
- the rear part of the cylindrical part 23 is formed by further warping the upper end of the calf part 29, which is a part over the calf of the user, further toward the rear side so as to follow the calf of the user.
- the front opening / closing body 40 is provided between the notches 26 and 26, and the front portion is integrally formed on the upper surface portion 21 of the footpack portion 20 so that the front opening 30 can be closed.
- the front opening / closing body 40 is disposed inside the front opening 30 of the cylindrical portion 23, and in use, opens in the forward direction with the front portion of the front opening / closing body 40 as an axis. By opening the opening 30, the user's foot can be put into the sports inner boot 100 from the tubular portion 23.
- An ethylene vinyl acetate copolymer resin containing ethylene and vinyl acetate (VA) is used as the material for the inner boot 100 for sports.
- the ethylene vinyl acetate copolymer can be produced by radical copolymerization of ethylene and vinyl acetate at high temperature and high pressure.
- the ethylene-vinyl acetate copolymer is a foamed plastic that can obtain a closed-celled foam from its characteristics and can be mixed with many materials. This foamed plastic is a thermoplastic plastic excellent in flexibility and rubber elasticity and rich in low temperature characteristics.
- the inner boot 100 for sports in the present embodiment is manufactured by first preparing several types of foot-types of standard human foot sizes, and then foam-molding the material into the foot-types.
- This foot shape corresponds to a so-called uneven thickness structure, and the sports inner boot 100 that is a molded product has an uneven thickness structure.
- the material used for molding is preferably a low to medium VA content grade ethylene vinyl acetate copolymer resin.
- This sports inner boot 100 has a surface hardness of 25 to 55 °, an MFR (Melt Flow Rate) value of 7.0 g / 10 min to 52.0 g / 10 min, a vinyl acetate content of 10% to 45%, EVA99. 95% ethylene and 0.05% added ethylene vinyl acetate copolymer resin.
- the surface hardness of the ethylene vinyl acetate copolymer resin constituting the sports inner boot 100 and the product hardness of the sports inner boot 100 are SRIS0101 (spring type Asker C type) measured according to JIS S 6050. .
- the unit of the content rate of a vinyl acetate, the compounding ratio of the component of a material, and other percentages (%) is weight% of solid content.
- FIG. 2 is a partial cross-sectional view taken along line BB in FIG.
- the sports inner boot 100 is an integrally formed inner boot made of a single material that is not laminated or coated with an inner or outer object made of cloth or the like. Further, the sports inner boot 100 is an integrally formed inner boot made of a single material having an uneven thickness structure and having no other member such as a cushion.
- the uneven thickness structure of the sports inner boot 100 is, as shown in FIG. 2, a heel part 27 formed so as to wrap the user's heel, and a heel corresponding to the heel so as to wrap the user's heel. It is used in the calf part 29 extending along the user's calf above the part 28 and the collar part 28. That is, this uneven thickness structure is applied to the user's foot in the range from the buttocks 27 of the bottom plate part 10 to the calf part 29 through the top of the ankle level, that is, the entire range of the user's foot. It has a structure that fits.
- the rear portion of the collar portion 27 is formed in an approximately L shape, and the upper portion thereof is gradually formed thick so as to protect the user's Achilles tendon. Then, the thickness of the flange portion 28 is gradually increased as it goes to the periphery while making the center of the flange portion 28 thinner. Furthermore, the calf part 29 is gradually formed thinly along the shape of the calf of the user.
- the material of the sports inner boot 100 is preferably ethylene vinyl acetate copolymer (EVA), polyolefin, polyolefin elastomer, thermoplastic resin elastomer, or a mixture thereof.
- EVA ethylene vinyl acetate copolymer
- the composition ratio of the constituent components of the sports inner boot 100 is as follows: the content of one ethylene vinyl acetate copolymer (EVA) is 0 to 28%, the other EVA is 13 to 4%, the content of polyolefin Is 36 to 49%, and the content of the thermoplastic resin elastomer is preferably 6 to 16%.
- the hardness is preferably adjusted to 30 ° or more and less than 45 °.
- the fluidity at the time of molding and impact resistance at low temperatures are improved, and a completely waterproof integrally molded sports inner boot 100 having a function as a thick member having a certain elasticity is manufactured. can do.
- the production method of the sports inner boot 100 can be easily performed by foam molding. Examples of the foam molding method include press foaming and injection foaming.
- azodicarbonamide or dinitrocypentamethylenetetramine can be used as a foaming agent for the material of the sports inner boot 100.
- an organic peroxide such as dicumyl peroxide can be used as the crosslinking agent.
- pigments, lubricants, and odor eliminating agents may be contained. By containing the odor eliminating agent, the inner boot 100 for sports can be smelled and has an odor eliminating action.
- FIG. 3 is a perspective view showing a use state of the sports inner boot 100.
- the sports inner boot 100 is inserted and disposed in the sports outer boot 1.
- the foot is inserted while the inner boot 100 for sports is inserted into the outer boot 1 for sports.
- a sliding silicone spray when applied to the sports inner boots 100, the user's feet enter the boots more smoothly so that they can wear boots.
- a silicon-based spray product number: E-1420-98A
- Kure Industries Co., Ltd. can be used as the sliding silicon spray.
- it may be a hood silicon spray.
- the snowboarder or skier can take out the sports inner boot 100 from the outer boot 1 for snowboarding or skiing.
- the sport inner boot 100 taken out can be dried or washed.
- the material of the bottom plate portion 10 and the foot bag portion 20 contains ethylene vinyl acetate copolymer (EVA), and is therefore stable against water and ultraviolet rays. And the inside can be easily washed. Since it does not contain water even after washing, the drying time can be relatively short. Therefore, it can be easily cleaned.
- EVA ethylene vinyl acetate copolymer
- the manufacturing cost including the equipment cost can be reduced as compared with the case of using urethane foam as the material.
- the sports inner boot 100 is excellent in molding processability and excellent in weather resistance and stress crack resistance. Therefore, it is possible to provide the sports inner boot 100 with high quality and relatively inexpensive.
- the content of one ethylene vinyl acetate copolymer (EVA) is 0 to 28%, the other EVA is 13 to 4%, and the ethylene vinyl acetate copolymer material (EVA)
- EVA ethylene vinyl acetate copolymer material
- the vinyl acetate content is 10 to 45%, the crystallinity is lowered and the flexibility is increased compared to the low vinyl acetate content, which is sufficient to support the user's foot. Can be provided with excellent elasticity and flexibility.
- the sports inner boot 100 of the present embodiment since it is an integrally formed inner boot made of a single material that is not subjected to lamination or coating of inner and outer objects by cloth or the like, it has waterproofness and is dry. In this case, the surface can be dried and the drying time can be shortened.
- the sports inner boot 100 has an uneven thickness structure, it is not necessary to partially provide another member such as a cushion between the sports inner boot 100 and the outer boot, and the drying time related to the cushion can be shortened. At the same time, the manufacturing cost can be reduced. Furthermore, since it is an integrally molded inner boot made of a single material without a cushion or the like, it can be fitted to the shape of the user's foot at low cost without using another member such as a cushion.
- the surface may be subjected to graining.
- a large number of recesses that do not penetrate the entire upper surface or a part of the upper surface of the bottom plate portion 10 inside the sports inner boot 100 may be provided.
- the recesses do not absorb sweat and form an air layer with high heat retention, so that the heat retention is good. Since it can be washed and used many times, it is comfortable and comfortable when sweating.
- ⁇ Moldability> In each example, the moldability when molding the sports inner boot was visually evaluated in the following three stages. ⁇ : The outer shape is not collapsed and can be formed into a desired shape. ⁇ : Some foaming defects and loss of shape are observed. X: Foaming defects and loss of shape are observed.
- the resin F has a characteristic that the elasticity of the product is somewhat improved.
- zinc oxide ZINC OXIDE
- zinc stearate ZINC STEARATE
- crosslinking agent BIOS ⁇ TERT-BATYLPEROXYISOPROPYL> BENZINE
- foaming agent AZOBISFORMAMIDE AZODICARBAMIDE
- accelerator-1 PROMOTER
- Accelerator-2 RAPID AGENT
- Fine talc powder TALCPOWDER
- Anti-wear agent WEAR RESISTANT AGENT
- Stearic acid STARIC ACID
- Titanium dioxide TITANIUM DIOXIDE
- Example 1 Each of the synthetic resins described above was mixed so as to have the ratio shown in Table 1 below, and the inner boot for sports of Example 1 was obtained by injection molding at a predetermined temperature by a normal method using the mixed resin.
- the cylinder temperature of the molding machine temperature for melting the EVA resin
- the mold temperature is 175 to 185 degrees (° C.).
- the hardness and comfort of the obtained sports inner boots were evaluated by the methods described above. The evaluation results are shown in Table 2.
- Example 2 to 5 The inner boots for sports of Examples 2 to 5 were obtained in the same manner as in Example 1 except that the ratio of the raw material resin was changed as shown in Table 1. The hardness and comfort of the obtained sports inner boots were evaluated by the methods described above. The evaluation results are shown in Table 2.
- FIG. 4 is a perspective view showing the sports inner boot 200 of the second embodiment.
- the sports inner boot 200 according to the second embodiment includes a foot bag 220 having a rear opening 230 and a rear opening / closing body 240 formed so as to be able to close the rear opening 230. I have. Note that portions corresponding to those in FIG. 1 are denoted by the same reference numerals.
- the foot bag portion 220 includes a cylindrical portion 223 having a rear opening 230 for inserting a user's foot.
- the cylindrical portion 223 has a substantially cylindrical shape at the top of the foot bag portion 220.
- a rear opening 230 that can be expanded is formed by forming a notch 226 from the rear edge of the cylindrical portion 223 to the flange portion 28 from the lip 224.
- a rear opening / closing body 240 is provided so that the rear opening 230 can be closed.
- the rear opening / closing body 240 is integrally formed so as to extend upward in the heel part 28 of the footpack part 220.
- the upper part of the rear opening / closing body 240 is formed by further warping the upper end of the calf part 229 further toward the rear part along the calf of the user.
- the foot bag 320 includes a cylindrical portion 323 having a side opening 330 for inserting a user's foot.
- the cylindrical part 323 is formed in a substantially cylindrical shape at the upper part of the foot bag part 320.
- a side opening 330 that can be expanded is formed by forming a notch 326 from the side edge of the cylindrical part 323 to the one flange part 28 from the lip 324.
- a side opening / closing body 340 is provided so that the side opening 330 can be closed.
- the side opening / closing body 340 is formed integrally with the heel part 28 of the foot bag part 320.
- the side opening / closing body 340 is disposed inside the side opening 330 of the cylindrical portion 323, and in use, the side opening / closing body 340 opens in the lateral direction around the lower portion of the side opening / closing body 340 as necessary. Accordingly, the side opening 330 can be expanded, and the user's foot can be put into the sports inner boot 300 from the tubular portion 323.
- the sports inner boot 300 disposed by being inserted into the sports outer boot 300 opens in the lateral direction with the lower part of the side opening / closing body 340 as an axis.
- the side opening 330 can be expanded as necessary, and the user's foot can be inserted into the sports inner boot 300 from the tubular portion 323, so that the user can easily put it on and off. Can be.
- the snowboarder or skier can take out the sports inner boot 300 from the snowboard or ski outer boot.
- the taken-out sports inner boot 300 can be dried or washed.
- this sports inner boot 300 since it does not contain water even if washed, its drying time can be made in a relatively short time. Therefore, it can be easily cleaned.
- the so-called entrainment type inner boot is the inner boot 100 for sports shown in FIG. 1, in which one notch 26 is not formed between the notches 26 and 26, and one side of the front opening / closing body 40 and a cylindrical shape. One side of the part 23 is left connected, and a notch 426 is formed only on the other side to form a one-side opening 430.
- the upper part of the foot bag 20 having the one-side opening 430 is defined as a cylindrical part 423.
- the front opening body 440 has a winding-type structure in which the front opening 440 is disposed so as to overlap the cutout portion 426 of the cylindrical portion 423 so that the one-side opening portion 430 can be closed.
- the sports inner boot 400 is provided with the foot wrap portion 420 having this configuration.
- the footpad 420 has a single notch 426 extending from the lip 424 to the upper part 25 of the front part of the cylindrical part 423 whose upper part is formed in a substantially cylindrical shape. And the one-side opening part 430 which can be expanded by this notch part 426 is formed.
- a winding-type front opening / closing body 440 is provided so as to extend inside the front opening 430 so as to be able to close the one-front opening 430.
- the sports inner boot 400 disposed by being inserted into the sports outer boot 400 opens in the forward direction with the lower part of the front opening / closing body 440 as an axis. Accordingly, the front opening 430 can be expanded and the user's foot can be put into the sports inner boot 400 from the tubular portion 223, so that the user can easily put it on and off. .
- the sports inner boot applied to the snowboard or ski inner boot has been described.
- the material has weather resistance and low temperature plasticity, and is flexible up to ⁇ 50 ° C. So Alpine ski inner boots, skating inner boots, ice hockey inner boots, other winter sports inner boots, roller skating inner boots, inline skating inner boots, mountaineering inner boots, motorcycle inner boots, golf inners
- the present invention can be similarly applied to boots and other inner boots for outdoor sports. It can also be applied to inner boots for work shoes in the same manner. Furthermore, it can be used for those rental purposes.
- the snowboard or ski inner boots 100, 200, 300, 400 of the above-described embodiment when used for rental, they have waterproofness and are easily taken out from the sports outer boots and washed inside. Since the drying time can be relatively short, it can be used over and over again and can be used in a sanitary manner.
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Abstract
Description
以下、図面を参照しながら、本発明を実施するための形態を説明する。本実施の形態のスポーツ用インナーブーツ100は、スノーボード又はスキー用インナーブーツに適用した一例である。図1はスノーボード又はスキー用に適用した場合のスポーツ用インナーブーツ100の実施の形態を示す斜視図である。ここで、前部とは、図1に示すA-A線におけるA1側をいい、後部とは、AーA線におけるA2側をいう。また、上部とは図1に示すC-C線におけるC1側をいい、下部とは、C-C線におけるC2側をいう。側部又は側方方向とは、D-D線における方向をいう。
上記した第1の実施形態のスポーツ用インナーブーツを成形する際に、材質を種々変更し、成形性、および、成形されたスポーツ用インナーブーツの硬度、履き心地を調べた。当該硬度、履き心地の評価方法は以下の通りである。
各実施例においてスポーツ用インナーブーツを成形する際の成形性を、目視によって、下記の3段階で官能評価した。
○:外形の崩れ等が見られず、所望の形状に成形できる。
△:若干の発泡の不具合や型崩れが認められる。
×:発泡の不具合や型崩れが認められる。
各実施例で得られたスポーツ用インナーブーツを、気温-20℃の雰囲気下で5時間放置した後、スポーツ用インナーブーツの硬度を、ゴム・プラスチック硬度計(株式会社テクロック社製デュアルメータ)を用いて、JIS S 6050に従って測定されるSR
IS0101に準拠した方法で測定した。
各実施例で得られたスポーツ用インナーブーツを、気温-20℃の雰囲気下で5時間放置した後に履いた場合の感触を、下記の3段階で官能評価した。
○:適度な柔軟性を有しており良好なフィット感がある。
△:若干の柔軟性が認められるものの、フィット感が不十分である。
×:柔軟性がまったく認められない。
・樹脂A:EVA-1(エチレン74%、酢酸ビニル26% MFR値=7.0g/10min.)
・樹脂B:EVA-2(エチレン60%、酢酸ビニル40% MFR値=52.0g/10min.)
・樹脂C:ポリオレフィン(POLYOLEFIN)
・樹脂D:ポリオレフィンエラストマー(POLYOLEFIN, ELASTOMER)
・樹脂E:熱可塑性樹脂エラストマー-1(THERMOPASTIC ELSTOMER)
・樹脂F:熱可塑性樹脂エラストマー-2(THERMOPASTIC ELSTOMER)
ここで、樹脂Eは、柔らかくなる為に使う素材である。他方、樹脂Fは、商品の弾性が多少良くなる特性があるものである。
なお、上記した原料樹脂中には、予め、酸化亜鉛(ZINC OXIDE)、ステアリン酸亜鉛(ZINC STEARATE)、架橋剤(BIS <TERT-BATYLPEROXYISOPROPYL> BENZINE)、発泡剤(AZOBISFORMAMIDE AZODICARBAMIDE)、促進剤-1(PROMOTER)、促進剤-2(RAPID AGENT)、微細滑石粉(TALCPOWDER)、耐摩剤(WEAR RESISTANT AGENT)、ステアリン酸(STEARIC ACID)、二酸化チタン(TITANIUM DIOXIDE)が添加されている(それらの添加剤の成形品における比率を表1に示す)。
上記した各合成樹脂を下記の表1の比率になるように混合し、その混合樹脂を用いて通常の方法により所定の温度で射出成形することによって、実施例1のスポーツ用インナーブーツを得た。ここで、成形機のシリンダー温度(EVA樹脂を溶かす温度)は80~100度(℃)、金型温度は175~185度(℃)である。そして、得られたスポーツ用インナーブーツの硬度、履き心地を、上記した方法で評価した。評価結果を表2に示す。
原料樹脂等の比率を表1のように変更し、それ以外は、実施例1と同様にして、実施例2~5のスポーツ用インナーブーツを得た。そして、得られたスポーツ用インナーブーツの硬度、履き心地を、上記した方法で評価した。評価結果を表2に示す。
図4は、第2の実施形態のスポーツ用インナーブーツ200を示す斜視図である。第2の実施形態のスポーツ用インナーブーツ200は、図4に示すように、後開口部230を有する足包部220と、後開口部230を閉塞し得るように形成した後開閉体240とを備えている。なお、図1と対応する部分に同一参照番号を付けて示す。
図5は、第3の実施形態のスポーツ用インナーブーツ300を示す斜視図である。第3の実施形態のスポーツ用インナーブーツ300は、図5に示すように、側方開口部330を有する足包部320と、側方開口部330を閉塞し得るように形成した側方開閉体340とを備えている。なお、図1と対応する部分に同一参照番号を付けて示す。
図6は、第4の実施形態のスポーツ用インナーブーツ400を示す斜視図である。第4の実施形態のスポーツ用インナーブーツ400は、図6に示すように、いわゆる巻き込み型のインナーブーツである。なお、図1と対応する部分に同一参照番号を付けて示す。
10・・底板部
20,220,320,420・・足包部
21・・上面部
22・・側面部
23,223,323、423・・筒状部
24,224,324,424・・口縁
25・・甲部
26,226,326,426・・切欠き部
27・・踵部
28・・踝部
29,229・・脹脛部
30・・前開口部
40,440・・前開閉体
100,200,300,400・・スポーツ用インナーブーツ
230・・後開口部
240・・後開閉体
330・・側方開口部
340・・側方開閉体
430・・片前開口部
Claims (6)
- アウターブーツ内に取外し可能に挿入する熱可塑性プラスチックからなるインナーブーツであって、
前記アウターブーツ内に配設される底板部と、
該底板部に形成された足包部とを備えており、
前記底板部と前記足包部とは一体的に形成されており、
前記熱可塑性プラスチックの材料はエチレン酢酸ビニル共重合体(EVA)を含有させたものであることを特徴とするインナーブーツ。 - 酢酸ビニルの含有率が、10~45%であることを特徴とする請求項1記載のインナーブーツ。
- 前記熱可塑性プラスチックの材料が、酢酸ビニルの含有率の異なる複数のエチレン酢酸ビニル共重合体を含有させたものであることを特徴とする請求項1又は2に記載のインナーブーツ。
- 前記足包部の上部を略筒状に形成するとともにその前部を口縁から踵部にかけて切欠き部を形成した拡開可能な前開口部と、
該前開口部を閉鎖し得るように前記足包部に一体的に形成されている前開閉体とを備えていることを特徴とする請求項1~3のいずれかに記載のインナーブーツ。 - 前記足包部の上部を略筒状に形成するとともにその後部を口縁から踵部にかけて切欠き部を形成した拡開可能な後開口部と、
該後開口部を閉鎖し得るように前記足包部に一体的に形成されている後開閉体とを備えていることを特徴とする請求項1~3のいずれかに記載のインナーブーツ。 - 前記足包部の上部を略筒状に形成するとともにその側部を口縁から一方の踝部にかけて切欠き部を形成した拡開可能な側方開口部と、
該側方開口部を閉鎖し得るように前記足包部に一体的に形成されている側方開閉体とを備えていることを特徴とする請求項1~3のいずれかに記載のインナーブーツ。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201580031917.0A CN106659264B (zh) | 2014-08-30 | 2015-08-24 | 内靴 |
| CA2952409A CA2952409C (en) | 2014-08-30 | 2015-08-24 | Inner boots |
| EP15836005.7A EP3187061B1 (en) | 2014-08-30 | 2015-08-24 | Inner boots |
| NZ727704A NZ727704A (en) | 2014-08-30 | 2015-08-24 | Inner boot |
| KR1020167035681A KR102198199B1 (ko) | 2014-08-30 | 2015-08-24 | 이너 부츠 |
| US15/320,423 US11224262B2 (en) | 2014-08-30 | 2015-08-24 | Inner boots |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-176690 | 2014-08-30 | ||
| JP2014176690 | 2014-08-30 | ||
| JP2014266410A JP6558749B2 (ja) | 2014-08-30 | 2014-12-26 | インナーブーツ |
| JP2014-266410 | 2014-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016031747A1 true WO2016031747A1 (ja) | 2016-03-03 |
Family
ID=55399639
Family Applications (1)
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| PCT/JP2015/073656 Ceased WO2016031747A1 (ja) | 2014-08-30 | 2015-08-24 | インナーブーツ |
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| Country | Link |
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| US (1) | US11224262B2 (ja) |
| EP (1) | EP3187061B1 (ja) |
| JP (1) | JP6558749B2 (ja) |
| KR (1) | KR102198199B1 (ja) |
| CN (1) | CN106659264B (ja) |
| CA (1) | CA2952409C (ja) |
| NZ (1) | NZ727704A (ja) |
| WO (1) | WO2016031747A1 (ja) |
Families Citing this family (1)
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| KR200489548Y1 (ko) * | 2017-12-13 | 2019-07-04 | 김화진 | 착화가 용이한 의료보조용 방한신발 |
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| JP2000152802A (ja) * | 1998-11-18 | 2000-06-06 | Usp Unique Sports Prod Marketing & Vertriebs Gmbh | スノ―ボ―ドブ―ツ |
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- 2015-08-24 US US15/320,423 patent/US11224262B2/en active Active
- 2015-08-24 EP EP15836005.7A patent/EP3187061B1/en active Active
- 2015-08-24 KR KR1020167035681A patent/KR102198199B1/ko active Active
- 2015-08-24 CN CN201580031917.0A patent/CN106659264B/zh active Active
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- 2015-08-24 CA CA2952409A patent/CA2952409C/en active Active
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| JP2000152802A (ja) * | 1998-11-18 | 2000-06-06 | Usp Unique Sports Prod Marketing & Vertriebs Gmbh | スノ―ボ―ドブ―ツ |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106659264A (zh) | 2017-05-10 |
| KR102198199B1 (ko) | 2021-01-04 |
| EP3187061A1 (en) | 2017-07-05 |
| CA2952409A1 (en) | 2016-03-03 |
| CA2952409C (en) | 2020-10-27 |
| JP2016049431A (ja) | 2016-04-11 |
| US20170181494A1 (en) | 2017-06-29 |
| KR20170053599A (ko) | 2017-05-16 |
| EP3187061A4 (en) | 2018-04-04 |
| NZ727704A (en) | 2022-05-27 |
| JP6558749B2 (ja) | 2019-08-14 |
| US11224262B2 (en) | 2022-01-18 |
| EP3187061B1 (en) | 2020-07-08 |
| CN106659264B (zh) | 2020-07-14 |
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