JPH09268409A - Shock-absorbing pad and clothes provided with the pad - Google Patents
Shock-absorbing pad and clothes provided with the padInfo
- Publication number
- JPH09268409A JPH09268409A JP8071981A JP7198196A JPH09268409A JP H09268409 A JPH09268409 A JP H09268409A JP 8071981 A JP8071981 A JP 8071981A JP 7198196 A JP7198196 A JP 7198196A JP H09268409 A JPH09268409 A JP H09268409A
- Authority
- JP
- Japan
- Prior art keywords
- pad
- shock
- acrylic copolymer
- absorbing pad
- foam
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、衣類、特に下着の
腰回りの適宜の部位に装着することにより、転倒時の骨
折、ことに骨粗鬆症等の患者の転倒時の骨折を未然に防
止するようにした骨折防護用衝撃吸収材およびそれを装
着した衣類、特にパンツのごとき衣類に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to prevent a bone fracture at the time of a fall, particularly a bone fracture at the time of a fall of a patient such as osteoporosis, by attaching it to an appropriate part of the waist of a garment, particularly underwear. The present invention relates to an impact absorbing material for bone fracture protection and clothing equipped with the same, in particular, clothing such as pants.
【０００２】[0002]
【従来の技術】例えば、実開昭６１−５５００８号や実
開平５−３７９１１号などに記載されている如く、各種
のスポーツを行う際、身体に与える衝撃や傷の発生を防
止する目的で、衣服の各部位に空気袋のような防護具を
設けた衣服類がみられる。しかしながら、上記衣服の各
部位に防護具を直接装着したものは、スポーツ用として
は適当であるが、通常の衣類、特に下着用としては不向
きであり、また防護具を装着した好適な下着は見当たら
ない。また、最近老年者の間には足腰が弱くなって骨が
脆くなり、転倒による骨折、特に大腿骨頚部骨折が増加
している傾向がみられる。例えば、１９９０年発行の
「ＴＨＥ ＪＯＵＲＮＡＬ ＯＦ ＢＯＮＥ ＡＮＤ
ＪＯＩＮＴ ＳＵＲＧＥＲＹ， ＶＯＬ．７２−Ａ,
ＮＯ．５ ＪＵＮＥ」におけるＪ．Ｃ．ＬＯＴＺ ＡＮ
Ｄ Ｗ．Ｃ．ＨＡＹＥＳの報告書によるモデル実験で
は、約７７８ニュートン（約７９Ｋgf）程度の力が加わ
ると骨折するとの報告がなされている。2. Description of the Related Art For example, as described in Japanese Utility Model Laid-Open No. 61-55008, Japanese Utility Model Laid-Open No. 5-37911, etc., for the purpose of preventing impact and scratches on the body during various sports, Clothes with protective equipment such as air bladders are found on each part of the clothes. However, it is suitable for sports to wear protective equipment directly on each part of the above-mentioned clothes, but it is not suitable for ordinary clothing, especially underwear, and suitable underwear with protective equipment is not found. Absent. In addition, recently, among the elderly, there is a tendency that the legs and hips become weak and the bones become brittle, and fractures due to falls, particularly femoral neck fractures, are increasing. For example, "THE JOURNAL OF BONE AND" issued in 1990.
JOINT SURGERY, VOL. 72-A,
NO. 5 JUNE ". C. LOTZ AN
D W. C. In the model experiment by the report of HAYES, it is reported that a bone fractures when a force of about 778 Newton (about 79 Kgf) is applied.
【０００３】さらに、１９９１年発行の「Ｇeriatric、
Ｍedicine，ＶＯＬ．２９ ＮＯ．５」における林泰史
の研究報告では、骨粗鬆症などが進行して骨が脆くなる
と、骨強度が健常者の約４２〜７９％に低下することが
報告されている。１９９２年発行の「Ｄanish Ｍedica
l Ｂulletin，ＶＯＬ．３９ ＮＯ．１／Ｆebruary」
におけるＪes Ｂruun Ｌaurizen ＆ Ｖagn Ａskeg
aardの報告では、実際に腰部における大腿骨頚部の骨折
した患者と健常者の身体的な相違について検討されてい
る。この報告書によると、腰部を覆う皮下組織の厚みに
統計上大きな相違が見られる旨、報告されており、それ
によると身体の体密度が同じであり、かつ骨折した患者
と健康的な人の場合を比較すると、その皮下組織の厚み
は、前者では２０ｍｍ、後者では２９ｍｍであり、相当
の相違があったと報告されている。さらに、上記の報告
では、人間の皮下組織と同じ力学上の特性を持つ豚の組
織を使って上記の２０ｍｍおよび２９ｍｍの厚さにおけ
る衝撃吸収率の相違についても測定されている。Furthermore, "Geriatric," published in 1991,
Medicine, VOL. 29 NO. In a research report by Yasushi Hayashi in "5," bone strength is reduced to about 42 to 79% of healthy subjects when osteoporosis progresses and the bone becomes brittle. Published in 1992, "Dannish Medica
Bulletin, VOL. 39 NO. 1 / February "
By Jes Bruun Laurizen & Vagn Askeg
According to aard's report, the physical difference between a patient with a fracture of the femoral neck in the lumbar region and a healthy subject is examined. According to this report, there is a statistically significant difference in the thickness of the subcutaneous tissue covering the lumbar region, which shows that the body density of the body is the same and the fractured patient and a healthy person have the same density. Comparing the cases, the thickness of the subcutaneous tissue was 20 mm in the former case and 29 mm in the latter case, and it is reported that there was a considerable difference. Further, the above report also measured the difference in shock absorption rate at the above-mentioned thicknesses of 20 mm and 29 mm using pig tissue having the same mechanical properties as human subcutaneous tissue.
【０００４】[0004]
【発明が解決しようとする課題】日常生活において不可
抗力の転倒等によって生じる大腿部頚部骨折が近年急増
している。これは転倒等の強い衝撃が大腿部頚部および
その周辺に加わったときに起こることで、特に骨の弱っ
た老人ならびにカルシウム不足等の何らかの原因によっ
て骨がもろくなっている状態の時に特に顕著に認められ
ている。本発明者らは、上記のように日常生活における
不慮の転倒に対し、骨折等の傷害を防止する目的で日常
着用していても着用感の損なわれずに、かつ大腿骨頚部
およびその周辺にかかる衝撃をやわらげるものとして、
アクリル系共重合体からなる発泡体のパッドを衣類に所
定の位置に取り付けて使用することにより望ましい結果
を得ることができることを見いだした。すなわち、本発
明者らは、衝撃吸収能力があり、衣類として常時着用し
ても着用感の優れる軽量、柔軟性を兼ね備え、また着用
時や洗濯時に予想される力に耐える機械的物性も兼ね備
える素材としてアクリル系共重合体の発泡体を使用し、
パンツ等のような衣類に組み込むことが最も効果的であ
ることを見いだした。In recent years, the number of femoral neck fractures caused by falls of force majeure in daily life has been rapidly increasing. This occurs when a strong impact such as a fall is applied to the thigh neck and its surroundings, especially when the bone is fragile due to some reason such as an old man with weak bones and lack of calcium. It recognized. The inventors of the present invention, against accidental falls in daily life as described above, do not impair the feeling of wearing even if they are worn daily for the purpose of preventing injuries such as fractures, and affect the femoral neck and its surroundings. As a shock absorber,
It has been found that the desired results can be obtained by using a foam pad made of an acrylic copolymer attached to a garment in place and used. That is, the present inventors have a material that has shock absorbing ability, has a light weight and flexibility that is excellent in a feeling of wearing even when it is always worn as clothes, and also has mechanical properties that endure the force expected during wearing or washing. Use the acrylic copolymer foam as,
It has been found to be most effective to incorporate it in clothing such as pants.
【０００５】[0005]
【課題を解決するための手段】本発明は、アクリル系共
重合体の発泡体からなることを特徴とする衣類装着用衝
撃吸収パッドおよび腰回りにおける前身頃、脇部、後身
頃および臀部の適宜な部位に該衝撃吸収パッドを取り付
けてなる衣類、特にパンツのような下着を提供するもの
である。本発明の衝撃吸収パッド用いると、特に、老人
の歩行時に前方や後方、あるいは左脇や右脇方向などあ
らゆる方向に転倒した場合でも、衣類に設けた衝撃吸収
パッドによって、腰回り、すなわち前身頃や脇部、後身
頃の各部位ならびに臀部が保護され、大腿骨頚部の骨折
を未然に防止できる効果が得られる。DISCLOSURE OF THE INVENTION The present invention provides a shock-absorbing pad for wearing clothes, which comprises an acrylic copolymer foam, and an appropriate front body, side, back and hips around the waist. The present invention provides an underwear such as a garment, particularly pants, in which the shock absorbing pad is attached to various parts. When the shock absorbing pad of the present invention is used, especially when the elderly person walks forward or backward, or falls in any direction such as the left side or the right side, the impact absorbing pad provided on the clothing provides waist circumference, that is, front body. The parts such as the armpit, the armpit, the back body, and the buttocks are protected, and the effect of preventing the fracture of the femoral neck can be obtained.
【０００６】[0006]
【発明の実施の態様】本発明の衝撃吸収パッドに用いる
アクリル系共重合体は、アクリルモノマーを含む共重合
体で、例えば、アクリル酸エステルモノマーと他のモノ
マーとからなる共重合体等を例示できる。アクリル酸エ
ステルには、例えば、アクリル酸メチル、アクリル酸エ
チル、アクリル酸ブチル、アクリル酸２−エチルヘキシ
ル、アクリル酸２−ヒドロキシエチル、アクリル酸２−
ヒドロキシプロピルエステル等のアクリル酸の炭素数１
〜１０のアルキルまたはヒドロキシアルキルのごときア
クリルモノマーが包含される。他のモノマーには、得ら
れる共重合体の柔軟性や耐候性等を向上させるためのア
クリル酸、メタクリル酸、アクリルアミド、メタクリル
酸メチル、メタクリル酸エチル、メタクリル酸ブチル、
塩化ビニル、塩化ビニリデン、酢酸ビニル、アクリロニ
トリル、エチレン、スチレン、アクロレイン、２−クロ
ロエチルアクリレート、ブタジエン、Ｎ−ビニルピロリ
ドン、アクリレート等のモノマーが包含される。アクリ
ル酸エステルモノマーと、他のモノマーとの共重合の比
率は適宜選択できるが、通常、アクリル酸エステルモノ
マー：他のモノマーのモル比が１：９０〜９０：１程度
が選られるパッドの性能から好ましい。共重合は自体公
知の方法で行うことができる。BEST MODE FOR CARRYING OUT THE INVENTION The acrylic copolymer used in the shock absorbing pad of the present invention is a copolymer containing an acrylic monomer, for example, a copolymer comprising an acrylic ester monomer and another monomer. it can. Examples of the acrylate ester include methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate, and 2-acrylic acid acrylate.
Carbon number of acrylic acid such as hydroxypropyl ester 1
Acrylic monomers such as alkyl or hydroxyalkyl of 10 are included. Other monomers include acrylic acid, methacrylic acid, acrylamide, methyl methacrylate, ethyl methacrylate, butyl methacrylate, for improving the flexibility and weather resistance of the resulting copolymer.
Monomers such as vinyl chloride, vinylidene chloride, vinyl acetate, acrylonitrile, ethylene, styrene, acrolein, 2-chloroethyl acrylate, butadiene, N-vinylpyrrolidone and acrylate are included. The copolymerization ratio of the acrylic acid ester monomer and the other monomer can be appropriately selected, but usually, a molar ratio of acrylic acid ester monomer: other monomer of about 1:90 to 90: 1 is selected from the performance of the pad. preferable. The copolymerization can be performed by a method known per se.
【０００７】また、当該共重合体に架橋剤をあらかじめ
添加し、強靭性、耐溶剤性、硬度等を改良することもで
きる。架橋剤としては、メラミン、エポキシ樹脂、アミ
ン樹脂等を例示できるが、これに限定されるものではな
い。発泡体形成は、通常用いられる増粘剤、起泡剤、触
媒等を用いることによって行うことができる。発泡方法
は、特に限定するものではなく、化学的発泡、物理的発
泡等の任意の発泡方法をとることができるが安全性、作
業の容易性等から物理的発泡方法が好ましい。例えば、
アクリル系共重合体のエマルジョンを、所定の配合で起
泡安定剤、架橋剤、触媒等を混合し、機械攪拌発泡機を
用い発泡させ、所望の見かけ密度にし、離型板または離
型紙上に所望の厚みに塗布し、加熱乾燥させフォームを
成形することができる。It is also possible to improve the toughness, solvent resistance, hardness and the like by adding a cross-linking agent to the copolymer in advance. Examples of the cross-linking agent include, but are not limited to, melamine, epoxy resin, amine resin and the like. The foam can be formed by using a thickener, a foaming agent, a catalyst and the like which are usually used. The foaming method is not particularly limited, and any foaming method such as chemical foaming and physical foaming can be used, but the physical foaming method is preferable from the viewpoint of safety, workability and the like. For example,
The acrylic copolymer emulsion is mixed with a foaming stabilizer, a cross-linking agent, a catalyst, etc. in a predetermined composition, and foamed by using a mechanical stirring foaming machine to obtain a desired apparent density, and then placed on a release plate or release paper. A foam can be formed by applying a desired thickness and heating and drying.
【０００８】本発明においては、アクリル系共重合体発
泡体の見掛け密度を、０.１〜０.８、好ましくは０.２
〜０.５程度とすることができる。これ以下の場合に
は、吸収パッドとしての強度、衝撃吸収性が悪くなり、
また、これ以上の場合には重くなりすぎて着用性の点で
不十分な物になることが判明した。また、発泡体の厚み
は３〜４０mm、好ましくは５〜１５mm程度とすることが
できる。In the present invention, the apparent density of the acrylic copolymer foam is 0.1 to 0.8, preferably 0.2.
It can be set to about 0.5. In the case of less than this, the strength as an absorption pad, the impact absorption becomes poor,
In addition, it has been found that in the case of more than this, it becomes too heavy and the wearability is insufficient. The thickness of the foam can be set to 3 to 40 mm, preferably 5 to 15 mm.
【０００９】本発明のパッドは、また、アクリル系共重
合体発泡体の表面に綿、アクリル繊維、毛、ポリエステ
ル繊維等で編織された生地を、適宜、接着剤を使って貼
り合わせても良い。この様に貼り合わせることによっ
て、発泡体の感触を良い物とし、さらに、運動時や高温
・多湿時の発汗時にこの貼り合わされた生地によって吸
汗作用を施すことが出きる。In the pad of the present invention, a cloth knitted with cotton, acrylic fiber, wool, polyester fiber or the like may be attached to the surface of the acrylic copolymer foam by using an adhesive as appropriate. . By sticking in this way, the feel of the foam can be improved, and further, the sweat-absorbing action can be exerted by the pasted cloth when exercising or sweating at high temperature and high humidity.
【００１０】また、本発明のパッドは、さらに、アクリ
ル系共重合体の発泡体と他の硬度の異なるシートとを組
合わせてもよく、硬度の高い物との組合わせることによ
り、転倒時の衝撃をさらに和らげる効果が得られること
が判明した。硬度の異なるシートには、ＪＩＳ Ａで５
〜９０、好ましくは３０〜８０程度のものが包含され、
特に限定するものではないが、例えば、ポリオレフィン
系、アミド系合成樹脂体やウレタン系、エステル系等の
エラストマーや天然あるいは人工の皮革等のシートが包
含される。これらのシートはアクリル系共重合体と適宜
接着剤等で貼り合わせて使用しても良いが、重ねてそれ
ぞれ衣類に取り付けても良い。Further, the pad of the present invention may further comprise a combination of a foam of an acrylic copolymer and another sheet having a different hardness. It has been found that the effect of further softening the shock can be obtained. JIS A 5 for sheets with different hardness
To 90, preferably about 30 to 80 are included,
Although not particularly limited, examples thereof include polyolefin-based, amide-based synthetic resin bodies, urethane-based, ester-based elastomers, and sheets of natural or artificial leather. These sheets may be used by appropriately adhering them to an acrylic copolymer with an adhesive or the like, or may be laminated and attached to clothing.
【００１１】上記アクリル系共重合体の発泡体を取り付
ける衣類は特に限定するものではなく、例えば、猿股類
やブリーフ、ショーツ、外着用ないしスポーツ用の各種
パンツ類およびズボン類が挙げられ、衝撃吸収の目的か
ら、特に、パンツが好ましい。パッドの取り付け方法も
特に限定しないが、パッドが、洗濯時にかかるせん断力
等によってずれないように、また、身体へのフィット性
の向上、運動のしやすさを付与するためにキルト状にパ
ッドを生地に縫いつけることができる。このために、パ
ッドを糸で縫いつけて固定してもよい。この時に、パッ
ドは、身体に触れる様にしても良いし、あるいは、生地
を介してもよい。また、例えば、ポケットを作りその中
に着脱自在で出し入れ出来る様にしても良い。取り付け
る位置としては、大腿骨頚部を中心に前身頃、脇部、後
身頃をカバーする部分に任意の１〜複数箇所に取り付け
られる。また、本来転倒等によって受ける衝撃を緩和す
る皮下脂肪が比較的薄く骨に対し衝撃が強くかかる所に
は衝撃吸収性を重視し厚手のアクリル系共重合体のパッ
ドを、また皮下組織は厚く本来の衝撃吸収能力は多少あ
るが尻もち等によっての衝撃を受けやすい臀部等には着
用性を重視したものを取り付ける等のように着用性を重
視して１つのパンツに２種類以上のパッドを組み合わせ
て使用しても良い。また、着用性等の点で必要であれば
衝撃の強く受ける場所にはアクリル系共重合体の発泡体
パッドを用い、さらに、衝撃の比較的緩和される様な所
には他のパッドを用いてもかまわない。他のパッドと
は、例えば、ウレタン発泡体やポリエチレン発泡体、ゴ
ムの発泡体、熱可塑性エラストマーの発泡体、シリコン
発泡体、不織布、立体織物等があげられる。Clothing to which the above-mentioned acrylic copolymer foam is attached is not particularly limited, and examples thereof include monkeys, briefs, shorts, various pants and pants for external wear or sports, and shock absorption. For this purpose, pants are particularly preferable. The method of attaching the pad is also not particularly limited, but the pad is formed in a quilt shape so that the pad does not shift due to shearing force applied at the time of washing, and that the fit to the body is improved and exercise is facilitated. Can be sewn on fabric. For this purpose, the pad may be sewn and fixed with thread. At this time, the pad may be in contact with the body or may be covered with cloth. Further, for example, a pocket may be formed so that it can be detachably inserted into and taken out from the pocket. As a mounting position, it is mounted at any one to a plurality of positions on the part covering the front body, the side part, and the back body centering on the femoral neck. In addition, where the subcutaneous fat, which alleviates the impact of falls, etc., is relatively thin, and where the impact on the bone is strong, attach a thick acrylic copolymer pad with emphasis on shock absorption, and the subcutaneous tissue should be thick. There is some impact absorption capacity, but the buttocks, etc. that are susceptible to shocks from the buttocks, etc. are attached to one pants with two or more types of pads with an emphasis on wearability, such as attaching to the buttocks that emphasize wearability. You may use it. In addition, if it is necessary in terms of wearability, use a foam pad of acrylic copolymer in a place where the impact is strong, and use another pad in a place where the impact is relatively moderated. It doesn't matter. Examples of other pads include urethane foam, polyethylene foam, rubber foam, thermoplastic elastomer foam, silicone foam, nonwoven fabric, and three-dimensional fabric.
【００１２】パッドの形状は特に限定するものことでは
ないが長方形、正方形、円形、楕円形、菱形などの多角
形や、短冊状やドーナツ型の内部がくり抜いてある物、
表面に任意の凹凸を付けた物等があげられる。また通気
性をもたせる為に適宜貫通孔をあけても良い。衝撃吸収
パッドの大きさは特に限定されるものではないが１cm2
〜１０００cm2、好ましくは５０cm2〜５００cm2程度が
良い。The shape of the pad is not particularly limited, but a polygon such as a rectangle, a square, a circle, an ellipse, a rhombus, or a strip or a donut-shaped inside is hollowed out,
The thing etc. which gave arbitrary irregularities on the surface are mentioned. In addition, through holes may be appropriately formed to provide air permeability. The size of the shock absorbing pad is not particularly limited, but it is 1 cm 2
~1000cm 2, preferably 50cm 2 ~500cm 2 about is good.
【００１３】また、衣類に用いられる生地も、素材、編
織方法など特に限定されるものではないが、例えば、通
気性、衝撃吸収性を向上させるために、生地の表面に凹
凸を付けたものを用いることができ、表面に凹凸の形状
が現れる編み組織、パイル編み等が好ましい。特に、こ
れらの生地を衣類の身体側に位置する場所に装着するこ
とによって上記の様な効果を発揮することが判明した。
さらに、パッドを身体に密着させることで効率的に衝撃
を緩和させるために、パッドのまわりにストレッチ素材
を用いてもよい。The cloth used for clothing is not particularly limited in terms of material and weaving method, but for example, cloth having irregularities on its surface in order to improve breathability and shock absorption. A knitting structure, a pile knitting, or the like, which can be used and in which irregularities are formed on the surface, is preferable. In particular, it has been found that the above-mentioned effects are exhibited by mounting these cloths on a place located on the body side of the clothing.
Further, a stretch material may be used around the pad in order to effectively absorb the impact by bringing the pad into close contact with the body.
【００１４】[0014]
【実施例】つぎに実施例を挙げて本発明をさらに詳しく
説明するが、本発明はこれらの実施例に限定されるもの
ではない。実施例中、転倒衝撃を吸収する評価について
は下記の様な測定方法を使って評価した。まず、実際の
人間が支え無しに転倒した場合に大腿骨頚部に加わる転
倒衝撃は例えば、１９９１年発行の「Ｊournal of Ｂio
mechanical Ｅngineering，Ｖol.１１３ Ｎo.４ Ｎovem
ber ３６６−３７４頁」におけるＳ.Ｎ.Ｒobinovitchら
の報告や、１９９２年発行の「Ｄanish Ｍedical Ｂull
etin，Ｖol.３９．９１−９３頁」におけるＪes Ｂruun
Ｌauritzenらの報告書から、実際の転倒時の衝撃力を
６４０kgfと想定し、図１に示す衝撃試験装置を作製
し、試験吸収パッドの衝撃吸収能力を測定した。また、
骨折を予防できる強度は、転倒の仕方、個体差によって
千差万別なので特定できないが、１９８２年発行の「Ｃ
linical Ｏrthopaedics and ＲelatedＲesearch，Ｎo.
１６３．２７２−２８１頁」におけるＩ.Ｌeichterらの
報告等から、おおよそ３００kgf以下であることがいえ
る。しかし、この値に限定されるものではない。The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. In the examples, the evaluation of absorbing a fall impact was performed using the following measuring method. First, the fall impact applied to the femoral neck when an actual person falls without support is described in, for example, “Journal of Bio” issued in 1991.
mechanical Engineering, Vol.113 No.4 Novem
ber 366-374 ", SN Robinovitch and others, and 1992 issue of Danish Medical Bull.
etin, Vol. 39.91-93 ", Jes Bruun.
From the report of Lauritzen et al., Assuming that the impact force at the time of actual fall is 640 kgf, the impact test apparatus shown in FIG. 1 was manufactured, and the impact absorption capacity of the test absorption pad was measured. Also,
The strength that can prevent a bone fracture cannot be specified because it varies according to the manner of falls and individual differences.
linical Orthopaedics and Related Research, No.
It can be said from the report of I. Leichter et al. On page 163.272-281, it is about 300 kgf or less. However, it is not limited to this value.
【００１５】図１において、被衝撃側としてフローリン
グ材６の上に衝撃吸収パッド５を置き、その上に０.３m
mの厚みの塩化ビニール製のフィルム４を置き、さら
に、皮下脂肪の変わりに２０mm厚みの牛脂３を置いた。
衝撃側として短軸が２１mm、長軸が３５mmの楕円形をし
た樫の木を衝撃子２としてアーム１にとりつけ、さらに
その衝撃子の上に加速度センサー９を取り付け、アーム
の先端に重りを装着した。(株)共和電業社製加速度セン
サー、品番「ＡＳ−５０ＨＢ」から、同じく(株)共和電
業社製動ひずみ測定器、品番「ＤＰＭ−７１１Ｂ」をア
ンプ７として接続し、オシロスコープ８でピーク電圧を
測定するシステムとした。吸収パッドが無いときに６４
０kgfとなるような高さである、床から２５cmの高さに
アームの先端をあげ、そこから初速が入らないように自
然落下させる方法をとった。衝撃吸収率は下記式から求
めた。In FIG. 1, the impact absorbing pad 5 is placed on the flooring material 6 as the impacted side, and 0.3 m is placed thereon.
A vinyl chloride film 4 having a thickness of m was placed, and beef tallow 3 having a thickness of 20 mm was placed instead of subcutaneous fat.
On the impact side, an oval oak tree with a short axis of 21 mm and a long axis of 35 mm is attached to the arm 1 as an impactor 2, and further an acceleration sensor 9 is attached on the impactor, and a weight is attached to the tip of the arm. did. Kyowa Denki Co., Ltd. acceleration sensor, product number "AS-50HB", Kyowa Denki Co., Ltd. dynamic strain gauge, product number "DPM-711B", connected as amplifier 7, and measure peak voltage with oscilloscope 8. The system. 64 when there is no absorbent pad
The tip of the arm was raised to a height of 25 cm above the floor, which was 0 kgf, and the arm was allowed to fall naturally from there so that the initial velocity would not enter. The shock absorption rate was calculated from the following formula.
【００１６】[0016]
【数１】衝撃吸収率＝{(６４０−ｋ)／６４０}×１００## EQU1 ## Impact absorption rate = {(640-k) / 640} × 100
【００１７】式中、ｋはパッドがある時の衝撃力を意味
する。また、以下、「部」とあるは、いずれも重量部を
意味する。 実施例１ アクリル系共重合体発泡体を下記のように配合で形成さ
せた。アクリル系共重合体樹脂として日本カーバイト工
業製、製品名ニカゾール４５５を１００部、ステアリン
酸アンモニウム塩１０部、水溶化エポキシ７部、触媒
０.０５部および炭酸カルシウム３０部を混合したエマ
ルジョンを調製した。このエマルジョンを機械攪拌発泡
機を用い攪拌しながら、約２倍になるように起泡させて
発泡し、ベルトの上に４mm厚みで塗布し、１００℃にて
１０分間乾燥させ、２.５mm厚みの発泡シートを得た。
この様にして得られたシートを３枚重ね合わせ、ウレタ
ン接着剤で貼り合わせた。こうして得られたアクリル系
共重合体の発泡体は、見掛け密度０.４５、厚み６.４mm
のシートで、これを図１の衝撃吸収試験機で衝撃吸収力
を測定したところ、２７７kgfで、衝撃吸収率は５６.７
％であった。この吸収パッドを大腿骨頚部を覆うように
長軸１５cm、単軸１０cmの楕円形の形にし綿生地で覆い
キルト状に直接左右の大腿骨頚部の部所のパンツに縫い
込んだ。これらのパンツは着用感も優れ、常時着用して
いても違和感のない物であった。In the equation, k means the impact force when the pad is present. Further, hereinafter, "parts" means "parts by weight". Example 1 An acrylic copolymer foam was formed with the following formulation. An emulsion prepared by mixing 100 parts of Nikasol 455, a product name, manufactured by Nippon Carbide Industry Co., Ltd., as an acrylic copolymer resin, 10 parts of ammonium stearate, 7 parts of water-soluble epoxy, 0.05 part of catalyst and 30 parts of calcium carbonate. did. While stirring with a mechanical stirring foaming machine, this emulsion is foamed by foaming so as to be approximately doubled, coated on a belt in a thickness of 4 mm, dried at 100 ° C. for 10 minutes, and a thickness of 2.5 mm. To obtain a foam sheet.
Three sheets thus obtained were stacked and bonded with a urethane adhesive. The acrylic copolymer foam thus obtained had an apparent density of 0.45 and a thickness of 6.4 mm.
The impact absorption capacity of this sheet was measured with the impact absorption tester of Fig. 1, and it was 277 kgf, and the impact absorption rate was 56.7.
%Met. The absorbent pad was formed into an elliptical shape having a long axis of 15 cm and a single axis of 10 cm so as to cover the femoral neck, and the absorbent pad was covered with cotton cloth and sewn directly into the pants of the left and right femoral necks. These pants were comfortable to wear and did not feel discomfort even when they were always worn.
【００１８】実施例２ 同様にアクリル系共重合体発泡体を下記の様な配合で形
成させた。アクリル系共重合体樹脂として日本カーバイ
ト工業製、製品名ニカゾール４５５を１００部、起泡安
定剤としてアライトコロイド社製、製品名アルコポール
ＦＡを１０部、水溶化エポキシ６部、触媒０.０５部お
よび炭酸カルシウム２５部を混合したエマルジョンを調
製した。このエマルジョンを機械攪拌発泡機を用い攪拌
しながら、約２.５倍になるように起泡させ、離型性の
良いベルト上に４.５mm厚みで塗布し１００℃にて１０
分間乾燥させ、２.７mm厚みの発泡シートを得た。こう
して得られたシートを３枚重ね合わせウレタン系の接着
剤で貼り合わせて、見掛け密度０.３５、厚み８.４mmの
１枚のシートを得た。このシートを図１の衝撃吸収試験
機で衝撃吸収力を測定したところ、１６７kgfであり、
衝撃吸収率は７４％であった。この吸収パッドを同様に
パンツに縫い込んだ。このパンツは着用感も優れ、常時
着用していても違和感のない物であった。Example 2 Similarly, an acrylic copolymer foam was formed with the following composition. Acrylic copolymer resin manufactured by Nippon Carbide Industry Co., Ltd., product name Nikazol 455 100 parts, foam stabilizer Stabilized by Alite Colloid, product name Alcopol FA 10 parts, water-soluble epoxy 6 parts, catalyst 0. An emulsion was prepared by mixing 05 parts and 25 parts of calcium carbonate. While stirring this emulsion using a mechanical stirring foaming machine, foam it so that it becomes about 2.5 times, apply it on a belt with good releasability to a thickness of 4.5 mm, and apply it at 100 ° C for 10 minutes.
After being dried for a minute, a foamed sheet having a thickness of 2.7 mm was obtained. The three sheets thus obtained were laminated and bonded together with a urethane-based adhesive to obtain a single sheet having an apparent density of 0.35 and a thickness of 8.4 mm. The impact absorption of this sheet was measured by the impact absorption tester of FIG. 1 and found to be 167 kgf,
The shock absorption rate was 74%. This absorbent pad was also sewn into pants. The pants were comfortable to wear, and they were comfortable to wear at all times.
【００１９】実施例３ 実施例１で得られた６.４mmのアクリル系共重合発泡体
（表面硬度ＪＩＳ Ｃ型 １５.２）に、１.５mm厚みの
人工皮革のクラレ(株)製、商品名クラリーノ、品番＃２
９１０（表面硬度ＪＩＳ Ａ型 ４８）を貼り合わせ
た。同様に衝撃吸収率を測定したところ、１９０.２kgf
で、衝撃吸収率は７０.２％であった。この吸収パッド
を実施例１と同様な形にし、パンツに縫い込んだ。この
パンツは着用感も優れ、常時着用していても違和感のな
いものであった。Example 3 A 6.4 mm acrylic copolymer foam (a surface hardness JIS C type 15.2) obtained in Example 1 was manufactured by Kuraray Co., Ltd., which is an artificial leather having a thickness of 1.5 mm. Name Clarino, product number # 2
910 (surface hardness JIS A type 48) was stuck. Similarly, when the shock absorption rate was measured, it was 190.2 kgf.
The shock absorption rate was 70.2%. This absorbent pad was formed into the same shape as in Example 1 and sewn into pants. These pants were comfortable to wear, and they were comfortable to wear at all times.
【００２０】実施例４ 実施例１で得られたアクリル系共重合発泡体に直径２mm
の貫通孔を５mm間隔で、全体にあけた。このときの衝撃
強度は２８８kgfで、衝撃吸収力は５５％であった。貫
通孔の有無によっての衝撃強度の差は認められず、この
貫通孔によって通気性が向上し、実施例１と同様にパン
ツに縫い込んだ状態での通気性も向上し着用感も優れ、
むれることがなく良好なものであった。Example 4 The acrylic copolymer foam obtained in Example 1 had a diameter of 2 mm.
Through holes were opened at 5 mm intervals throughout. At this time, the impact strength was 288 kgf and the impact absorption was 55%. No difference in impact strength was observed depending on the presence or absence of the through hole, and the through hole improves the breathability, and the breathability in the state of being sewn into the pants is improved and the wearing feeling is excellent as in Example 1.
It was a good one with no unevenness.
【００２１】実施例５ 実施例２で得られたアクリル系共重合発泡体の８.４mm
のパッドを大腿骨頚部を覆う部分の脇身頃の部分に長軸
１５cm、短軸１０cmの楕円形にし、綿生地でキルト状に
パンツに縫い込んだ。さらに、臀部に熱可塑エラストマ
ーの発泡体である朝日ラバー(株)製の商品名ハイストレ
ッチフォーム、厚み８mm、見掛け密度０.２４を長軸８c
m、短軸５cmの楕円形にし、同じくキルト状に縫い込ん
だ。できあがったパンツは重さも常時着用するには差し
支えのないものであり、大腿骨頚部を保護するだけでな
く尻もち等をついたときでも痛みを和らげることができ
る。Example 5 8.4 mm of the acrylic copolymer foam obtained in Example 2
The pad was made into an elliptical shape with a long axis of 15 cm and a short axis of 10 cm on the side of the body covering the femoral neck, and was sewn into the pants in a quilt shape with a cotton cloth. In addition, a high-strength foam with a trade name of Asahi Rubber Co., Ltd., which is a thermoplastic elastomer foam, has a thickness of 8 mm and an apparent density of 0.24 on the long axis 8c
It was made into an elliptical shape with m and a minor axis of 5 cm, and was sewn into a quilt as well. The resulting pants are heavy enough to be worn all the time, and not only protect the femoral neck, but also reduce the pain when the hips are stuck.
【００２２】実施例６ パンツの脇部つまり大腿骨頚部を覆う部位に、パンツの
外側に上部に開口部を設けた、実施例２で得られたアク
リル系共重合発泡体を入れることができるポケットを形
成した。開口部にはファスナーを取り付けてあり着脱自
在になっている。この様に着脱自在にすることによりア
クリル系共重合体のパッドを外しておき洗濯、乾燥をす
ることができる。また転倒等の衝撃のかかる恐れのない
就寝時等は外しておくことができるという利点もある。
着用性もポケット状にしても何ら違和感のないものであ
った。Example 6 A pocket in which the acrylic copolymer foam obtained in Example 2 can be placed, in which an opening is provided on the outside of the pants at the side part of the pants, that is, the part covering the femoral neck, Was formed. A fastener is attached to the opening to make it removable. By making it detachable in this way, the acrylic copolymer pad can be removed and washed and dried. Further, there is also an advantage that it can be removed at bedtime, etc. when there is no risk of impact such as a fall.
Even if it was worn like a pocket, there was no discomfort.
【００２３】比較例１ ポリウレタン発泡体のイノアックコーポレーションの商
品名ＰＯＲＯＮ、品番Ｕ３２ 厚み５mmのものを実施例
１と同様に衝撃強度を測定したところ、衝撃強度で３９
４.２kgf、衝撃吸収力で３８.４％であった。これを実
施例１と同様にパンツに縫い込んだ。長時間着用すると
擦れた感じになり不快感を及ぼすものであった。Comparative Example 1 The impact strength of a polyurethane foam, Inoac Corporation, trade name PORON, product number U32, having a thickness of 5 mm was measured in the same manner as in Example 1. The impact strength was 39.
It was 4.2 kgf and the impact absorption power was 38.4%. This was sewn into pants in the same manner as in Example 1. When it was worn for a long time, it felt rubbed and caused discomfort.
【００２４】比較例２ クロロプレンゴムの発泡体であるナショナル護膜(株)製
商品名ネオプレンスポンジ、品番ＨＤ、厚み６.２mm
を同様に測定したところ、衝撃強度は４２９kgf、衝撃
吸収率は３３％であった。これを実施例１と同様にパン
ツに縫い込んだ。これも比較例１と同様に擦れた感じに
なり、不快感を及ぼすものであった。COMPARATIVE EXAMPLE 2 Neoprene sponge, trade name, manufactured by National Guardian Membrane Co., Ltd., which is a foam of chloroprene rubber, product number HD, thickness 6.2 mm
When similarly measured, the impact strength was 429 kgf and the impact absorption rate was 33%. This was sewn into pants in the same manner as in Example 1. Similar to Comparative Example 1, this also rubbed and gave an unpleasant feeling.
【００２５】以下、図２〜図１１を用いて、本発明の衝
撃吸収パッドを装着したパンツの例を説明する。図２
は、本発明の衝撃吸収パッドを装着したパンツの具体例
の模式的斜視図であり、綿メリヤス生地や綿織物地等で
構成されたパンツ２０は、前身頃２１、脇部側後身頃２
２、中央部側後身頃２３および股部２５で構成されてい
る。図３および図４に示すごとく、被覆部３１および３
２に、脇部側後身頃２２の内面(裏面側、図４)に綿メリ
ヤス生地や綿織物地等で構成された被覆用生地３５を介
して衝撃吸収パッド３０が被覆され、かつ、脇部側後身
頃２２と一体的に縫着３６されている（図６参照）。図
５および図６は、被覆部３１の分解図および図４におけ
るＸ−Ｘ線に沿った断面図である。同様に中央部側後身
頃２３の臀部２４付近における内面(裏面側)に綿メリヤ
ス生地や綿織物地等で構成された被覆用生地３７を介し
て衝撃吸収パッド３０が被覆され、かつ、中央部側後身
頃２３と一体的に縫着３８されている。2 to 11, an example of pants equipped with the shock absorbing pad of the present invention will be described below. FIG.
FIG. 4 is a schematic perspective view of a specific example of pants with the shock absorbing pad according to the present invention. The pants 20 made of cotton knit fabric or cotton fabric have a front body 21 and a back side 2
2. It is composed of a rear part 23 and a crotch part 25 on the center side. As shown in FIGS. 3 and 4, the covering portions 31 and 3
2, the inner surface (rear surface side, FIG. 4) of the armpit side rear body 22 is covered with a shock absorbing pad 30 via a covering material 35 made of cotton knitted fabric or cotton fabric, and the armpit side It is sewn on integrally with the rear body 22 (see FIG. 6). 5 and 6 are an exploded view of the covering portion 31 and a cross-sectional view taken along line XX in FIG. Similarly, the impact absorbing pad 30 is coated on the inner surface (rear surface side) near the buttocks 24 of the rear portion of the central portion 23 through the coating material 37 made of cotton knitted fabric or cotton fabric, and the central portion side. It is sewn 38 integrally with the rear body 23.
【００２６】図７は、本発明の衝撃吸収パッドを装置し
たサイクル用パンツの具体例の模式的斜視図であり、綿
メリヤス生地や綿織物地等で構成されたサイクル用パン
ツ５０は、前身頃５１、脇身頃５２および後身頃５３で
構成されている。図８〜図１０に示すごとく、被覆部６
１に、脇身頃５２の内面（裏面側、図１０）に綿メリヤ
ス生地や綿織物地等で構成された被覆用生地６５を介し
て衝撃吸収パッド６０が被覆され、かつ、脇身頃５２と
被覆用生地６５が、格子状に一体的に縫着６６されてな
る袋部７０内に被覆、保持されると共に、脇身頃５２と
前身頃５１および後身頃５３の側部側が、それぞれ縫着
６７および６８されている（図１０および図１１参
照）。図１１は図１０のＹ−Ｙ線に沿った断面図であ
る。以上記載したごとく、本発明によれば、衣類に設け
た衝撃吸収パッドによって、腰回り、すなわち前身頃や
脇部、後身頃の各部位ならびに臀部が保護され、大腿骨
頚部の骨折を未然に防止できる効果が得られる。FIG. 7 is a schematic perspective view of a specific example of the cycle pants in which the shock absorbing pad of the present invention is installed. The cycle pants 50 made of cotton knitted fabric, cotton fabric or the like is a front body 51. , A side body 52 and a back body 53. As shown in FIGS. 8 to 10, the covering portion 6
1, the inner side (back side, FIG. 10) of the armpit body 52 is covered with a shock absorbing pad 60 via a covering material 65 composed of a cotton knitted fabric or cotton fabric, and the armpit body 52 and the covering body 52 are covered. The cloth 65 is covered and held in a bag portion 70 integrally stitched in a lattice pattern 66, and the side portions of the side body 52 and the front body 51 and the back body 53 are sewn 67 and 68, respectively. (See FIGS. 10 and 11). FIG. 11 is a sectional view taken along the line YY of FIG. As described above, according to the present invention, the impact-absorbing pad provided on the clothing protects the waist, that is, the front body part, the side part, the back part and the buttocks, and prevents the fracture of the femoral neck. The effect that can be obtained is obtained.
【図１】 衝撃吸収率測定装置を示す図である。FIG. 1 is a diagram showing a shock absorption rate measuring device.
【図２】 本発明の衝撃吸収パッドを装着したパンツの
正面図である。FIG. 2 is a front view of a pair of pants equipped with the shock absorbing pad of the present invention.
【図３】 図２のパンツの背面図である。3 is a rear view of the pants of FIG.
【図４】 図３の裏面図である。FIG. 4 is a rear view of FIG.
【図５】 図４における被覆部の分解説明図である。5 is an exploded explanatory view of a covering portion in FIG.
【図６】 図４のＸ−Ｘ線に沿った断面図である。6 is a cross-sectional view taken along the line XX of FIG.
【図７】 本発明の衝撃吸収パッドを装着したサイクル
用パンツの正面図である。FIG. 7 is a front view of cycle pants equipped with the shock absorbing pad of the present invention.
【図８】 図７のサイクル用パンツの背面図である。8 is a rear view of the cycle pants of FIG. 7. FIG.
【図９】 図７のサイクル用パンツの側面図である。9 is a side view of the cycle pants of FIG. 7. FIG.
【図１０】 図９の裏面図である。FIG. 10 is a rear view of FIG.
【図１１】 図１０のＹ−Ｙ線に沿った断面図である。11 is a cross-sectional view taken along the line YY of FIG.
１・・・アーム ５・・・吸収パッド ８・・・オシロスコープ ９・・・加速度センサー ２０・・・パンツ ２１・・・前身頃 ２２・・・脇部側後身頃 ２３・・・脇部側後身頃 ３０・・・衝撃吸収パッド ３１および３２・・・被覆部 ３５および３７・・・被覆用生地 ５０・・・サイクル用パンツ ６０・・・衝撃吸収パッド ６１・・・被覆部 ６５・・・被覆用生地 1 ... Arm 5 ... Absorption pad 8 ... Oscilloscope 9 ... Accelerometer 20 ... Pants 21 ... Front body 22 ... Armpit side rear body 23 ... Armpit side rear Body 30 ... Impact absorbing pads 31 and 32 ... Covering portion 35 and 37 ... Covering fabric 50 ... Cycle pants 60 ... Impact absorbing pad 61 ... Covering portion 65 ... Covering Dough
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ３２Ｂ 27/30 Ｂ３２Ｂ 27/30 Ａ // Ｃ０８Ｆ 20/10 ＭＬＹ Ｃ０８Ｆ 20/10 ＭＬＹ (72)発明者 小渡 里香 京都府宮津市惣262番地 グンゼ株式会社 アパレル事業本部内 (72)発明者 及川 克彦 滋賀県守山市森川原町163番地 グンゼ株 式会社滋賀研究所内 (72)発明者 伊藤 善吾 兵庫県神戸市長田区五位池１丁目５番21号─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B32B 27/30 B32B 27/30 A // C08F 20/10 MLY C08F 20/10 MLY (72) Invention Rika Owata 262 Sou Sou, Miyazu City, Kyoto Prefecture Gunze Co., Ltd. Apparel Business Headquarters (72) Inventor Katsuhiko Oikawa 163 Morikawahara-cho, Moriyama City, Shiga Gunze Co., Ltd.Shiga Research Institute (72) Inventor Zengo Ito Kobe, Kobe 1-5-21 Goikeike, Nagata-ku, Yokohama-shi
Claims (8)
とを特徴とする衣類装着用衝撃吸収パッド。1. A shock-absorbing pad for wearing clothes, which is made of a foam of an acrylic copolymer.
０.８の見掛け密度である請求項１記載の衝撃吸収パッ
ド。2. The acrylic copolymer foam is 0.1 to
The shock absorbing pad according to claim 1, which has an apparent density of 0.8.
を貼り合わせてなる請求項１記載の衝撃吸収パッド。3. The shock absorbing pad according to claim 1, wherein a cloth is attached to the surface of the foamed product of the acrylic copolymer.
るシートとの多層構造を有する積層体である請求項１記
載の衝撃吸収パッド。4. The shock absorbing pad according to claim 1, which is a laminate having a multi-layer structure of a foam of an acrylic copolymer and a sheet having a different hardness.
硬度ＪＩＳ Ａで５〜９０の合成樹脂体である請求項４
記載の衝撃吸収パッド。5. The sheet laminated with the acrylic copolymer is a synthetic resin body having a hardness of JIS A of 5 to 90.
The shock absorbing pad described.
よび臀部の適宜な部位に請求項１〜５いずれか１項に記
載の衝撃吸収パッドを取り付けてなる衣類。6. A garment in which the shock absorbing pad according to any one of claims 1 to 5 is attached to appropriate portions of a front body, a side portion, a back body, and a buttocks around a waist.
なる請求項６記載の衣類。7. The garment according to claim 6, wherein a shock absorbing pad is detachably attached.
類。8. The garment according to claim 6, which is pants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8071981A JPH09268409A (en) | 1996-03-27 | 1996-03-27 | Shock-absorbing pad and clothes provided with the pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8071981A JPH09268409A (en) | 1996-03-27 | 1996-03-27 | Shock-absorbing pad and clothes provided with the pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09268409A true JPH09268409A (en) | 1997-10-14 |
Family
ID=13476159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8071981A Pending JPH09268409A (en) | 1996-03-27 | 1996-03-27 | Shock-absorbing pad and clothes provided with the pad |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09268409A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003003004A (en) * | 2001-06-20 | 2003-01-08 | Gunze Ltd | Wear with impact absorbing pad |
| WO2012029917A1 (en) | 2010-09-03 | 2012-03-08 | 株式会社カネカ | Impact-absorbing pad, clothing furnished with same and method for preventing femoral fractures |
| JP2014016152A (en) * | 2006-05-30 | 2014-01-30 | Compagnie Europeenne De Developpement Industriel - Cedi | Method for designing clothing and equipment for law enforcement and method for homologating such clothing and equipment |
-
1996
- 1996-03-27 JP JP8071981A patent/JPH09268409A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003003004A (en) * | 2001-06-20 | 2003-01-08 | Gunze Ltd | Wear with impact absorbing pad |
| JP2014016152A (en) * | 2006-05-30 | 2014-01-30 | Compagnie Europeenne De Developpement Industriel - Cedi | Method for designing clothing and equipment for law enforcement and method for homologating such clothing and equipment |
| WO2012029917A1 (en) | 2010-09-03 | 2012-03-08 | 株式会社カネカ | Impact-absorbing pad, clothing furnished with same and method for preventing femoral fractures |
| KR20130106390A (en) | 2010-09-03 | 2013-09-27 | 카네카 코포레이션 | Impact-absorbing pad, clothing furnished with same and method for preventing femoral fractures |
| US9687035B2 (en) | 2010-09-03 | 2017-06-27 | Kaneka Corporation | Impact-absorbing pad, clothing furnished with same and method for preventing femoral fractures |
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