JP6236566B2 - Hammock for helmet - Google Patents
Hammock for helmet Download PDFInfo
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- JP6236566B2 JP6236566B2 JP2017135010A JP2017135010A JP6236566B2 JP 6236566 B2 JP6236566 B2 JP 6236566B2 JP 2017135010 A JP2017135010 A JP 2017135010A JP 2017135010 A JP2017135010 A JP 2017135010A JP 6236566 B2 JP6236566 B2 JP 6236566B2
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- hammock
- helmet
- absorbing structure
- shock absorbing
- cap body
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- 230000035939 shock Effects 0.000 claims description 45
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 210000003128 head Anatomy 0.000 description 23
- 230000002123 temporal effect Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 210000001061 forehead Anatomy 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Helmets And Other Head Coverings (AREA)
Description
本発明は、ヘルメットの帽体内部に設けられて人頭に接するヘルメット用ハンモックに関する。 The present invention relates to a helmet hammock that is provided inside a helmet body and contacts a human head.
従来、ヘルメットは、硬質の帽体と、人頭に接するハンモック、ヘッドバンド、環ひも等からなる着装体とを備えている。更に、この種のヘルメットにおいては、帽体の内面に衝撃吸収ライナが取り付けられている。 2. Description of the Related Art Conventionally, a helmet includes a hard cap body and a wearing body made up of a hammock, a headband, a ring strap, etc. in contact with the human head. Further, in this type of helmet, an impact absorbing liner is attached to the inner surface of the cap body.
衝撃吸収ライナは、発泡スチロール等により形成されており、帽体の内面の殆どの範囲を覆っている。これにより、ヘルメット着用者の転倒や転落による墜落時に前頭部と後頭部との何れの側から衝撃を受けても、そのときの衝撃力を衝撃吸収ライナが適切に吸収して人頭を保護することができるようになっている(例えば、特許文献1参照)。 The impact absorbing liner is made of foamed polystyrene or the like and covers most of the inner surface of the cap body. As a result, even if a helmet wearer falls or falls due to a fall, the shock absorbing liner appropriately absorbs the impact force at either side of the frontal head or the back of the head to protect the human head (See, for example, Patent Document 1).
しかし、帽体と着装体との間に衝撃吸収ライナが設けられていると、帽体と人頭との間の空隙が僅かとなることから、ヘルメット内部の通気性が悪く、衝撃吸収ライナにより放熱も阻害される。このため、ヘルメット内部に熱こもりや蒸れが生じて着用時の快適性が損なわれる不都合がある。 However, if an impact absorption liner is provided between the cap body and the wearing body, the air gap between the cap body and the human head becomes small, so the air permeability inside the helmet is poor, and the impact absorption liner Heat dissipation is also hindered. For this reason, there is an inconvenience that a warmth and stuffiness are generated inside the helmet and the comfort during wearing is impaired.
一方、通気性や放熱性を確保するために、帽体の内面から衝撃吸収ライナを取り除くことが考えられる。しかし、衝撃吸収ライナを取り除いた場合、帽体直上位置からの落下物等の衝突時には、ハンモック等の着装体による衝撃力の緩和が得られるものの、着用者の墜落時に前頭部側或いは後頭部側から受ける衝撃力に対しては殆ど吸収することができないために、十分な墜落時保護性能が得られなくなる不都合がある。 On the other hand, in order to ensure air permeability and heat dissipation, it is conceivable to remove the shock absorbing liner from the inner surface of the cap body. However, when the shock absorbing liner is removed, the impact force can be reduced by the wearing body such as a hammock when a falling object collides from the position directly above the cap body, but the frontal or occipital side when the wearer falls Since the impact force received from the surface cannot be absorbed, there is a disadvantage that sufficient protection performance during a crash cannot be obtained.
上記の点に鑑み、本発明は、ヘルメットの着用時に高い快適性が得られるだけでなく、ヘルメットに十分な墜落時保護性能を付与することができるヘルメット用ハンモックを提供することを目的とする。 In view of the above points, an object of the present invention is to provide a helmet hammock that not only provides high comfort when a helmet is worn, but also can provide a helmet with sufficient fall protection performance.
かかる目的を達成するために、本発明は、ヘルメットの硬質の帽体内部に設けられて人頭に接するヘルメット用ハンモックであって、前記帽体内面に着脱自在に係止する係止部を有して放射状に配設された複数本の脚部と、各脚部を頭頂部で互いに連結する連結部とからなるハンモック本体を備えるものにおいて、前記ハンモック本体は、前記脚部間に向かって延びる延出部と、人頭と帽体との間に位置して衝撃を吸収する衝撃吸収構造部とを備え、前記延出部は、前記衝撃吸収構造部を吊り下げ状態で連結していることを特徴とする。 In order to achieve such an object, the present invention provides a helmet hammock that is provided inside a hard cap body of a helmet and contacts a human head, and has a locking portion that is detachably locked on the inner surface of the cap body. and a plurality of legs arranged radially, and in those with a hammock body comprising a connecting portion connecting together the legs at the top portion, the hammock body extends towards between the legs An extension part, and a shock absorbing structure part that absorbs shock and is located between the human head and the cap body, and the extension part connects the shock absorption structure part in a suspended state It is characterized by.
これによれば、従来のように帽体の内面に衝撃吸収ライナを取り付けることなく、ハンモックに設けた衝撃吸収構造部により衝撃を吸収することができるので、ヘルメットに十分な墜落時保護性能を付与することができる。しかも、従来の衝撃吸収ライナが不要であることにより、ハンモックに接する人頭と帽体との間に十分な空隙を確保して通気性や放熱性が得られ、ヘルメット内部の熱こもりや蒸れを防止して高い快適性を得ることができる。 According to this, since the shock can be absorbed by the shock absorbing structure provided in the hammock without attaching the shock absorbing liner to the inner surface of the cap body as in the past, the helmet is provided with sufficient fall protection performance can do. In addition, by eliminating the need for a conventional shock-absorbing liner, air gaps and heat dissipation can be obtained by securing a sufficient gap between the person's head in contact with the hammock and the cap body. High comfort can be obtained by preventing.
また、本発明において、前記衝撃吸収構造部は、互いに隣り合う前記脚部間に位置することを特徴とする。これによれば、前記脚部間のスペースを利用して衝撃吸収構造部を設けることができる。従って、衝撃吸収構造部を配置するためのスペースを帽体と脚部との間に確保する必要がないから、構造簡単として安価に製造することができる。 In the present invention, the shock absorbing structure portion is located between the leg portions adjacent to each other. According to this, the shock absorbing structure can be provided by utilizing the space between the legs. Therefore, it is not necessary to secure a space for arranging the shock absorbing structure portion between the cap body and the leg portion, so that the structure can be simplified and manufactured at low cost.
また、本発明において、前記衝撃吸収構造部は、複数の前記延出部に連結されていることを特徴とする。これによれば、延出部の延出長を設定するだけで、衝撃吸収構造部を所望の位置に配置させることができる。 Further, in the present invention, before Symbol shock absorbing structure, characterized in that it is connected to a plurality of the extending portion. According to this, the impact absorbing structure can be arranged at a desired position simply by setting the extension length of the extension.
また、本発明において、前記ハンモック本体と前記衝撃吸収構造部とは、合成樹脂により一体成型されていることを特徴とする。これによれば、前記衝撃吸収構造部を設けたことによるハンモックの部品点数の増加が防止でき、ヘルメットの組立工数の削減及び製造コストの低減が可能となる。 In the present invention, the hammock body and the shock absorbing structure are integrally formed of a synthetic resin. According to this, it is possible to prevent an increase in the number of parts of the hammock due to the provision of the shock absorbing structure, and it is possible to reduce the number of helmet assembly steps and the manufacturing cost.
また、本発明における前記衝撃吸収構造部は、複数の筒状部と、各筒状部の一端を互いに連結する板状の基部とを備えて各筒状部の軸線方向に付与される衝撃力に対して所定の衝撃吸収能力を有するものを採用することができる。 The shock absorbing structure according to the present invention includes a plurality of tubular portions and a plate-like base portion that connects one end of each tubular portion to each other, and an impact force applied in the axial direction of each tubular portion. In contrast, it is possible to employ one having a predetermined shock absorbing capability.
本発明の一実施形態を図面に基づいて説明する。図1に示すように、本実施形態のハンモック1は、ヘッドバンド2と共にヘルメットの着装体3を構成している。着装体3は、硬質材で形成される帽体4(図中仮想線示)の内部に設けられる。 An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the hammock 1 of this embodiment constitutes a helmet wearing body 3 together with a headband 2. The wearing body 3 is provided inside a cap body 4 (indicated by phantom lines in the figure) formed of a hard material.
ハンモック1は、人頭に接して人頭と帽体4との間に空隙を形成する。ヘッドバンド2は、人頭を囲繞して人頭に固定される。ヘッドバンド2の後頭部側には、人頭のサイズに合わせて周長を調節するためのサイズ調節手段5が設けられている。 The hammock 1 is in contact with the human head and forms a gap between the human head and the cap body 4. The headband 2 is fixed to the human head around the human head. On the rear head side of the headband 2, size adjusting means 5 for adjusting the circumference according to the size of the human head is provided.
次に、本発明の要旨に係るハンモック1の構成について詳説する。図2及び図3に示すように、ハンモック1は、ハンモック本体6と複数(本実施形態では4つ)の衝撃吸収構造部7とを備えている。 Next, the configuration of the hammock 1 according to the gist of the present invention will be described in detail. As shown in FIGS. 2 and 3, the hammock 1 includes a hammock body 6 and a plurality (four in the present embodiment) of shock absorbing structures 7.
ハンモック本体6は、頭頂部から放射状に延びる複数(本実施形態では4本)の脚部8と、各脚部8を頭頂部で一体に連結する連結部9とによって構成されている。各脚部8は、図2に示すように、人頭に対応するように湾曲する形状に設けられる。 The hammock main body 6 includes a plurality of (four in this embodiment) leg portions 8 that extend radially from the top of the head, and a connecting portion 9 that integrally connects the legs 8 at the top of the head. As shown in FIG. 2, each leg portion 8 is provided in a shape that curves so as to correspond to the human head.
各脚部8の下端部には、帽体4内周面への連結手段10が設けられている。連結手段10は、帽体4内周面に固定される固定部材11と、この固定部材11に着脱自在に係止する係止部12とからなり、係止部12が各脚部8の下端部に一体に形成されている。 At the lower end of each leg 8, a connecting means 10 to the inner peripheral surface of the cap body 4 is provided. The connecting means 10 includes a fixing member 11 fixed to the inner peripheral surface of the cap body 4 and a locking portion 12 that is detachably locked to the fixing member 11, and the locking portion 12 is a lower end of each leg portion 8. It is formed integrally with the part.
図3に示すように、ハンモック本体6の連結部9には、互いに隣り合う脚部8間に延びる複数(本実施形態では4本)の延出部13が一体に設けられている。そして、各延出部13の先端には衝撃吸収構造部7が一体に設けられている。即ち、本実施形態のハンモック1は、脚部8、連結部9、延出部13及び衝撃吸収構造部7が、合成樹脂(例えばポリオレフィン系合成樹脂等)を材料とする射出成形により一体成形されている。 As shown in FIG. 3, the connecting portion 9 of the hammock body 6 is integrally provided with a plurality (four in this embodiment) of extending portions 13 extending between the adjacent leg portions 8. The shock absorbing structure 7 is integrally provided at the tip of each extending portion 13. That is, in the hammock 1 of the present embodiment, the leg portion 8, the connecting portion 9, the extending portion 13, and the shock absorbing structure portion 7 are integrally formed by injection molding using a synthetic resin (for example, a polyolefin-based synthetic resin) as a material. ing.
衝撃吸収構造部7が延出部13に設けられていることにより、延出部13の延出長を適宜設定するだけで、各衝撃吸収構造部7を所望の位置に配置させることができる。 Since the shock absorbing structure portion 7 is provided in the extending portion 13, each shock absorbing structure portion 7 can be disposed at a desired position simply by appropriately setting the extending length of the extending portion 13.
衝撃吸収構造部7は、図2及び図3に示すように、何れも同一形状に形成されており、図3に示すように、複数(本実施形態では8個)の筒状部14と、各筒状部14の一端の底部を互いに連結する板状の基部15とによって構成されている。筒状部14は、多角筒状に形成されており、その軸線方向の潰れにより衝撃力を吸収する能力を備える。基部15は、適度に撓ませることができる薄板状に形成されている。 The shock absorbing structure 7 is formed in the same shape as shown in FIGS. 2 and 3, and as shown in FIG. 3, a plurality (eight in this embodiment) of cylindrical portions 14, Each cylindrical portion 14 is constituted by a plate-like base portion 15 that connects the bottom portions at one end thereof. The cylindrical portion 14 is formed in a polygonal cylindrical shape and has an ability to absorb an impact force by being crushed in the axial direction. The base 15 is formed in a thin plate shape that can be bent appropriately.
本実施形態における衝撃吸収構造部7は、次の衝撃吸収能力を有する。即ち、高温処理(+50℃環境に2時間暴露)及び低温処理(−10℃環境に2時間暴露)を行った衝撃吸収体(衝撃吸収構造部7と同一材料で同一形状のもの)を、ロードセルを備える金属製平面上に載置し、この衝撃吸収体上に、質量5.0kg、直径127mmの平面形ストライカを高さ0.5mから落下させたとき、金属製平面のロードセルにより測定される衝撃荷重が2.5kN〜9.5kNであり、且つ、衝撃力の継続時間が3msec〜15msecであるものを採用した。 The shock absorbing structure 7 in the present embodiment has the following shock absorbing ability. That is, a shock absorber (having the same material and shape as the shock absorbing structure 7) subjected to high temperature treatment (exposed to + 50 ° C. for 2 hours) and low temperature treatment (exposed to −10 ° C. for 2 hours) is used as a load cell. When a flat striker having a mass of 5.0 kg and a diameter of 127 mm is dropped from a height of 0.5 m onto this shock absorber, the load is measured by a metal flat load cell. An impact load of 2.5 kN to 9.5 kN and a duration of impact force of 3 msec to 15 msec were employed.
そして、各衝撃吸収構造部7は、図1に示すように、夫々、帽体4の前面側の前頭部保護領域F、帽体4の両側面の側頭部保護領域S、及び帽体4の後面側の後頭部保護領域Rの内側に配設される。これにより、帽体4の前頭部保護領域F、後頭部保護領域R、及び側頭部保護領域Sにおいて十分な墜落時保護性能が発揮される。 As shown in FIG. 1, each shock absorbing structure 7 includes a frontal protection area F on the front side of the cap body 4, a temporal protection area S on both sides of the cap body 4, and a cap body, respectively. 4 is disposed inside the occipital region protection region R on the rear surface side. As a result, a sufficient fall protection performance is exhibited in the forehead protection region F, the occipital region protection region R, and the temporal region protection region S of the cap body 4.
上記の墜落時保護性能を確認するために、図1に示すように、ハンモック1を帽体4の内部に設けたヘルメットに対し、「日本工業規格T8131:2000付属書2」における転倒・転落時保護用安全帽の規定に基づく試験を行った。その結果、前頭部試験及び後頭部試験では、帽体4、ハンモック1及び衝撃吸収構造部7の複合体として何れも、衝撃力が9.81kN以下に抑えられており、前頭部保護領域F及び後頭部保護領域Rは、高い墜落時保護性能を有することが明らかとなった。 In order to confirm the above-described protection performance during a fall, as shown in FIG. 1, when the helmet is provided with the hammock 1 inside the cap body 4, when the vehicle falls or falls according to “Japanese Industrial Standard T811: 2000 Annex 2” A test based on the provision of protective safety caps was conducted. As a result, in the forehead test and the occipital head test, the impact force is suppressed to 9.81 kN or less as a composite of the cap body 4, the hammock 1, and the shock absorbing structure portion 7. And it became clear that the occipital region protection region R has a high fall protection performance.
なお、側頭部保護領域Sに対しては、「日本工業規格T8133:2007」の規定に基づく試験を行ったところ、衝撃力は15.00kN(300G)以下に抑えられていることが確認できた。これにより、側頭部保護領域Sにおいても十分な保護性能を有することが明らかとなった。 In addition, when the test based on the prescription | regulation of "Japanese Industrial Standard T8133: 2007" was performed with respect to the temporal region protection area S, it was confirmed that the impact force was suppressed to 15.00 kN (300 G) or less. It was. As a result, it was revealed that the temporal protection area S has sufficient protection performance.
このように、各保護領域F,S,Rに対応する位置に衝撃吸収構造部7が設けられることで、従来のような帽体の内面の殆どを覆う衝撃吸収ライナを設けることなく、人頭と帽体4との間に比較的広い空隙を確保して十分な墜落時保護性能を得ることができ、ヘルメットの着用時に通気性や放熱性が得られて高い快適性を得ることができる。 As described above, the shock absorbing structure 7 is provided at a position corresponding to each of the protection areas F, S, and R, so that a human head can be provided without providing a shock absorbing liner that covers most of the inner surface of the cap body as in the prior art. A relatively wide gap can be secured between the cap body 4 and the cap body 4 to obtain a sufficient fall protection performance, and air permeability and heat dissipation can be obtained when the helmet is worn, so that high comfort can be obtained.
なお、本実施形態においては、衝撃吸収構造部7の筒状部14を多角筒状としたが、筒状部14は多角筒状に限るものではなく、円筒状であってもよい。また、筒状部14の数量及び大きさは適宜設定することができる。 In addition, in this embodiment, although the cylindrical part 14 of the impact-absorbing structure part 7 was made into the polygonal cylinder shape, the cylindrical part 14 is not restricted to a polygonal cylinder shape, A cylindrical shape may be sufficient. Moreover, the quantity and size of the cylindrical part 14 can be set as appropriate.
また、本実施形態においては、4つの脚部8を備えるハンモック本体6を示したが、脚部8の数はこれに限るものではない。 Moreover, in this embodiment, although the hammock main body 6 provided with the four leg parts 8 was shown, the number of the leg parts 8 is not restricted to this.
また、衝撃吸収構造部7は、各保護領域F,S,Rのうちの所望の保護領域にのみ設けてもよい。即ち、図示しないが、帽体4の前頭部保護領域Fの内側と後頭部保護領域Rの内側にのみ衝撃吸収構造部7を設けてもよい。この場合、側頭部保護領域Sの衝撃吸収構造部7が不要になり、人頭と帽体4との間に一層広い空隙を形成することができるので、着用時の快適性を更に向上させることができる。 Further, the shock absorbing structure 7 may be provided only in a desired protection region among the protection regions F, S, and R. That is, although not shown, the shock absorbing structure 7 may be provided only inside the frontal head protection area F and inside the back head protection area R of the cap body 4. In this case, the shock absorbing structure portion 7 in the temporal region protection area S is not necessary, and a wider gap can be formed between the human head and the cap body 4, thereby further improving the comfort during wearing. be able to.
また、本実施形態のハンモック1は、脚部8、連結部9、延出部13及び衝撃吸収構造部7が合成樹脂を材料とする射出成形により一体成形されている。これによれば、部品点数を少なくしてヘルメットの組立工数を低減させることができる。一方、本発明のハンモックはこれに限るものではなく、例えば、ハンモック本体と衝撃吸収構造部とを別部材とし、適宜の連結手段や接着剤等により、ハンモック本体に衝撃吸収構造部を連結した構成を採用してもよい。 In the hammock 1 of this embodiment, the leg portion 8, the connecting portion 9, the extending portion 13, and the shock absorbing structure portion 7 are integrally formed by injection molding using a synthetic resin as a material. According to this, the number of parts can be reduced and the assembly man-hour of the helmet can be reduced. On the other hand, the hammock of the present invention is not limited to this, for example, a configuration in which the hammock body and the shock absorbing structure portion are separate members, and the shock absorbing structure portion is connected to the hammock body by an appropriate connecting means or adhesive. May be adopted.
また、本実施形態においては、ハンモック本体6に衝撃吸収構造部7を設けた例として、図3に示すように、衝撃吸収構造部7を互いに隣り合う前記脚部8間に配設したハンモック1を挙げたが、本発明のハンモックはこれに限るものではない。 Further, in the present embodiment, as an example in which the impact absorbing structure portion 7 is provided in the hammock body 6, as shown in FIG. 3, the hammock 1 in which the impact absorbing structure portion 7 is disposed between the leg portions 8 adjacent to each other. However, the hammock of the present invention is not limited to this.
1…ハンモック、4…帽体、6…ハンモック本体、7…衝撃吸収構造部、8…脚部、9…連結部、13…延出部、14…筒状部、15…基部。 DESCRIPTION OF SYMBOLS 1 ... Hammock, 4 ... Cap body, 6 ... Hammock main body, 7 ... Shock absorption structure part, 8 ... Leg part, 9 ... Connection part, 13 ... Extension part, 14 ... Cylindrical part, 15 ... Base part.
Claims (5)
前記ハンモック本体は、前記脚部間に向かって延びる延出部と、人頭と帽体との間に位置して衝撃を吸収する衝撃吸収構造部とを備え、
前記延出部は、前記衝撃吸収構造部を吊り下げ状態で連結していることを特徴とするヘルメット用ハンモック。 A helmet hammock that is provided inside a hard cap body of a helmet and contacts the human head, and has a plurality of legs arranged radially with locking portions that are detachably locked to the inner surface of the cap body. In a thing provided with a hammock main body consisting of a connecting part that connects the part and each leg part to each other at the top of the head,
The hammock main body includes an extending part extending between the leg parts, and an impact absorbing structure part that is located between the human head and the cap body and absorbs an impact.
The extension hammock is a helmet hammock characterized in that the shock absorbing structure is connected in a suspended state.
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JP2017135010A JP6236566B2 (en) | 2017-07-10 | 2017-07-10 | Hammock for helmet |
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JP2017135010A JP6236566B2 (en) | 2017-07-10 | 2017-07-10 | Hammock for helmet |
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JP2013156944A Division JP6236243B2 (en) | 2013-07-29 | 2013-07-29 | Hammock for helmet |
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JP6236566B2 true JP6236566B2 (en) | 2017-11-22 |
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Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1528647A (en) * | 1976-07-27 | 1978-10-18 | Esab Ab | Helmet |
EP0423379B1 (en) * | 1989-10-14 | 1993-07-28 | Schuberth-Werk GmbH & Co. KG | Military protective helmet |
JPH06102842B2 (en) * | 1992-12-26 | 1994-12-14 | 昭和ゴム機材株式会社 | Disposable helmet interior body |
DE102008028709B4 (en) * | 2008-06-17 | 2010-07-22 | Schuberth Gmbh | helmet |
JP5611055B2 (en) * | 2009-01-13 | 2014-10-22 | 住ベテクノプラスチック株式会社 | Under cap |
DE102010050678B3 (en) * | 2010-11-05 | 2012-04-05 | Schuberth Gmbh | Protective arrangement for the body of a living being, in particular protective helmet |
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