JPH01139114U - - Google Patents
Info
- Publication number
- JPH01139114U JPH01139114U JP3539888U JP3539888U JPH01139114U JP H01139114 U JPH01139114 U JP H01139114U JP 3539888 U JP3539888 U JP 3539888U JP 3539888 U JP3539888 U JP 3539888U JP H01139114 U JPH01139114 U JP H01139114U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust hole
- threaded part
- head
- main exhaust
- circumferential direction
- 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
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Compressor (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は従来の一例を示す断面図である。 １……ネジ部、２……頭部、４……主排気孔、
６……ネジ穴排気孔、１０……バカ穴排気孔。
図は従来の一例を示す断面図である。 １……ネジ部、２……頭部、４……主排気孔、
６……ネジ穴排気孔、１０……バカ穴排気孔。
Claims (1)
- ネジ部から頭部に貫通する主排気孔と、前記ネ
ジ部に円周方向から中心に向け前記主排気孔と垂
直に通ずるネジ部排気孔と、前記ネジ部と前記頭
部との間にある首部に位置し円周方向から中心に
向け前記主排気孔と垂直に通ずるバカ穴排気孔と
を含むことを特徴とする直空用ボルト。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3539888U JPH01139114U (ja) | 1988-03-16 | 1988-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3539888U JPH01139114U (ja) | 1988-03-16 | 1988-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01139114U true JPH01139114U (ja) | 1989-09-22 |
Family
ID=31262046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3539888U Pending JPH01139114U (ja) | 1988-03-16 | 1988-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01139114U (ja) |
-
1988
- 1988-03-16 JP JP3539888U patent/JPH01139114U/ja active Pending