JPH0421789Y2 - - Google Patents
Info
- Publication number
- JPH0421789Y2 JPH0421789Y2 JP1987025094U JP2509487U JPH0421789Y2 JP H0421789 Y2 JPH0421789 Y2 JP H0421789Y2 JP 1987025094 U JP1987025094 U JP 1987025094U JP 2509487 U JP2509487 U JP 2509487U JP H0421789 Y2 JPH0421789 Y2 JP H0421789Y2
- Authority
- JP
- Japan
- Prior art keywords
- shell
- shield plate
- hammock
- helmet
- shock absorbing
- 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.)
- Expired
Links
- 230000035939 shock Effects 0.000 claims description 28
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987025094U JPH0421789Y2 (ru) | 1987-02-23 | 1987-02-23 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987025094U JPH0421789Y2 (ru) | 1987-02-23 | 1987-02-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63135923U JPS63135923U (ru) | 1988-09-07 |
JPH0421789Y2 true JPH0421789Y2 (ru) | 1992-05-19 |
Family
ID=30824926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987025094U Expired JPH0421789Y2 (ru) | 1987-02-23 | 1987-02-23 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0421789Y2 (ru) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4531305B2 (ja) * | 2001-08-03 | 2010-08-25 | ミドリ安全株式会社 | 顔面保護板付ヘルメット |
JP5067119B2 (ja) * | 2007-10-26 | 2012-11-07 | Dicプラスチック株式会社 | ヘルメット |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS442487Y1 (ru) * | 1966-08-06 | 1969-01-30 | ||
JPS523826B2 (ru) * | 1974-12-26 | 1977-01-31 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS523826U (ru) * | 1975-06-24 | 1977-01-12 |
-
1987
- 1987-02-23 JP JP1987025094U patent/JPH0421789Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS442487Y1 (ru) * | 1966-08-06 | 1969-01-30 | ||
JPS523826B2 (ru) * | 1974-12-26 | 1977-01-31 |
Also Published As
Publication number | Publication date |
---|---|
JPS63135923U (ru) | 1988-09-07 |
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