JP2005344752A5 - - Google Patents
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- Publication number
- JP2005344752A5 JP2005344752A5 JP2004162031A JP2004162031A JP2005344752A5 JP 2005344752 A5 JP2005344752 A5 JP 2005344752A5 JP 2004162031 A JP2004162031 A JP 2004162031A JP 2004162031 A JP2004162031 A JP 2004162031A JP 2005344752 A5 JP2005344752 A5 JP 2005344752A5
- Authority
- JP
- Japan
- Prior art keywords
- coil spring
- relief valve
- manufacturing
- tube
- valve
- 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
Claims (3)
前記コイルばねの外周に嵌装され、該コイルばねの伸縮に追随して伸縮可能な弾性材料製のチューブにより前記コイルばねの外側を覆ってあることを特徴とするリリーフ弁。 A cylindrical valve housing is provided with a valve body that moves in accordance with a force balance between a spring force of a coil spring that elastically contacts one side and an internal pressure of a pressure circuit that is applied to the other side, and is opened by the movement of the valve body. In the relief valve for releasing the high-pressure fluid flowing out from the valve hole to the low-pressure part through the inside of the valve housing,
A relief valve, characterized in that the outside of the coil spring is covered with a tube made of an elastic material that is fitted on the outer periphery of the coil spring and can be expanded and contracted following the expansion and contraction of the coil spring .
前記コイルばねの外径よりも大きい内径を有し熱収縮性材料製の前記チューブを用い、該チューブを前記コイルばねに外嵌した後に加熱して収縮させ、前記コイルばねに嵌装する工程を含むことを特徴とするリリーフ弁の製造方法。Using the tube made of a heat-shrinkable material having an inner diameter larger than the outer diameter of the coil spring, fitting the tube to the coil spring and then shrinking it by heating and fitting the coil spring. A method for manufacturing a relief valve, comprising:
前記コイルばねの外径よりも小さい内径を有し周方向の一部に欠落部を設けてある前記チューブを用い、該チューブを、前記欠落部を拡げて前記コイルばねの外側に嵌装する工程を含むことを特徴とするリリーフ弁の製造方法。Using the tube having an inner diameter smaller than the outer diameter of the coil spring and having a missing part in a circumferential direction, and expanding the missing part and fitting the tube to the outside of the coil spring The manufacturing method of the relief valve characterized by including these.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004162031A JP2005344752A (en) | 2004-05-31 | 2004-05-31 | Relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004162031A JP2005344752A (en) | 2004-05-31 | 2004-05-31 | Relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005344752A JP2005344752A (en) | 2005-12-15 |
| JP2005344752A5 true JP2005344752A5 (en) | 2007-06-21 |
Family
ID=35497326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004162031A Pending JP2005344752A (en) | 2004-05-31 | 2004-05-31 | Relief valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2005344752A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007303593A (en) * | 2006-05-12 | 2007-11-22 | Jtekt Corp | Relief valve |
| JP5072412B2 (en) * | 2007-04-06 | 2012-11-14 | 株式会社オーディオテクニカ | Narrow directional microphone acoustic tube, narrow directional microphone, and method of manufacturing a narrow directional microphone acoustic tube |
| JP2019158296A (en) * | 2018-03-16 | 2019-09-19 | 株式会社不二工機 | Expansion valve |
-
2004
- 2004-05-31 JP JP2004162031A patent/JP2005344752A/en active Pending
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