JPH01102123U - - Google Patents
Info
- Publication number
- JPH01102123U JPH01102123U JP19866087U JP19866087U JPH01102123U JP H01102123 U JPH01102123 U JP H01102123U JP 19866087 U JP19866087 U JP 19866087U JP 19866087 U JP19866087 U JP 19866087U JP H01102123 U JPH01102123 U JP H01102123U
- Authority
- JP
- Japan
- Prior art keywords
- helmet
- load
- absorbing material
- shock absorbing
- specific gravity
- 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
- 239000000463 material Substances 0.000 claims description 6
- 239000011359 shock absorbing material Substances 0.000 claims 4
- 230000006835 compression Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 claims 3
- 230000005484 gravity Effects 0.000 claims 3
- 229920006328 Styrofoam Polymers 0.000 claims 1
- 239000011358 absorbing material Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 239000002984 plastic foam Substances 0.000 claims 1
- 239000008261 styrofoam Substances 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Description
第１図はこの考案の実施例を示すヘルメツトの
中央縦断面図、第２図はこの考案の別の実施例を
示す中央縦断面図、第３図はさらに別の実施例を
示す中央縦断面図、第４図は第３図のライナーの
分解斜視図、第５図は衝撃荷重を受けた際のライ
ナーの特性を示す説明図である。
１…ヘルメツト、２…外皮、３…第１の衝撃吸
収材、５…第２の衝撃吸収材、７…内張り材。
Fig. 1 is a central vertical sectional view of a helmet showing an embodiment of this invention, Fig. 2 is a central longitudinal sectional view showing another embodiment of this invention, and Fig. 3 is a central longitudinal sectional view showing yet another embodiment. 4 is an exploded perspective view of the liner shown in FIG. 3, and FIG. 5 is an explanatory diagram showing the characteristics of the liner when subjected to an impact load. DESCRIPTION OF SYMBOLS 1... Helmet, 2... Outer skin, 3... First shock absorber, 5... Second shock absorber, 7... Lining material.
Claims (1)
ヘルメツトにおいて、外皮はプラスチツクの板材
で構成され、ライナーはプラスチツクの発泡材か
らなる第１の衝撃吸収材と、これより比重が大き
くかつ弾力性に富む材料からなる第２の衝撃吸収
材との二層構造で構成されていることを特徴とす
るヘルメツト。 ２ 上記第１の衝撃吸収材は比重が０．０３〜０
．０５の発泡スチロールで構成され、第２の衝撃
吸収材は比重が０．１〜０．５で、２５％圧縮変
形させるための荷重が０．１〜１．０Kg／cm2、
７５％圧縮変形後荷重を除去した際の永久歪が１
〜１０％となる材料で構成されていることを特徴
とする実用新案登録請求の範囲第１項記載のヘル
メツト。 ３ 上記第１の衝撃吸収材は、２５％圧縮変形さ
せるための荷重が３〜６Kg／cm2、７５％圧縮変
形後荷重を除去した際の永久歪が３０〜５０％と
なる材料で構成されていることを特徴とする実用
新案登録請求の範囲第２項記載のヘルメツト。[Scope of Claim for Utility Model Registration] 1. A helmet composed of an outer skin, a liner, and an inner lining material, where the outer skin is composed of a plastic plate, the liner is a first impact absorbing material made of a plastic foam material, and A helmet characterized by having a two-layer structure including a second shock absorbing material made of a material having a large specific gravity and high elasticity. 2 The first shock absorbing material has a specific gravity of 0.03 to 0.
．． The second shock absorbing material is made of Styrofoam No. 05, and has a specific gravity of 0.1 to 0.5, and a load of 0.1 to 1.0 Kg/cm 2 to compress and deform by 25%.
After 75% compression deformation, the permanent set when the load is removed is 1
10. The helmet according to claim 1, characterized in that the helmet is made of a material with a content of 10% to 10%. 3 The first shock absorbing material is made of a material that has a load of 3 to 6 kg/cm 2 for 25% compression deformation and a permanent set of 30 to 50% when the load is removed after 75% compression deformation. 2. A helmet according to claim 2 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19866087U JPH01102123U (en) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19866087U JPH01102123U (en) | 1987-12-25 | 1987-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01102123U true JPH01102123U (en) | 1989-07-10 |
Family
ID=31489154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19866087U Pending JPH01102123U (en) | 1987-12-25 | 1987-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01102123U (en) |
-
1987
- 1987-12-25 JP JP19866087U patent/JPH01102123U/ja active Pending
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