JPH0421786Y2 - - Google Patents
Info
- Publication number
- JPH0421786Y2 JPH0421786Y2 JP1987025095U JP2509587U JPH0421786Y2 JP H0421786 Y2 JPH0421786 Y2 JP H0421786Y2 JP 1987025095 U JP1987025095 U JP 1987025095U JP 2509587 U JP2509587 U JP 2509587U JP H0421786 Y2 JPH0421786 Y2 JP H0421786Y2
- Authority
- JP
- Japan
- Prior art keywords
- connecting shaft
- bracket
- diameter hole
- hole
- annular groove
- 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
- 239000000463 material Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000003860 storage Methods 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 |
---|---|---|---|
JP1987025095U JPH0421786Y2 (US06623731-20030923-C00012.png) | 1987-02-23 | 1987-02-23 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987025095U JPH0421786Y2 (US06623731-20030923-C00012.png) | 1987-02-23 | 1987-02-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63135928U JPS63135928U (US06623731-20030923-C00012.png) | 1988-09-07 |
JPH0421786Y2 true JPH0421786Y2 (US06623731-20030923-C00012.png) | 1992-05-19 |
Family
ID=30824928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987025095U Expired JPH0421786Y2 (US06623731-20030923-C00012.png) | 1987-02-23 | 1987-02-23 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0421786Y2 (US06623731-20030923-C00012.png) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5536504U (US06623731-20030923-C00012.png) * | 1978-09-01 | 1980-03-08 |
-
1987
- 1987-02-23 JP JP1987025095U patent/JPH0421786Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5536504U (US06623731-20030923-C00012.png) * | 1978-09-01 | 1980-03-08 |
Also Published As
Publication number | Publication date |
---|---|
JPS63135928U (US06623731-20030923-C00012.png) | 1988-09-07 |