JPS5440958A - Screw provided with relaxation prevention - Google Patents
Screw provided with relaxation preventionInfo
- Publication number
- JPS5440958A JPS5440958A JP10669477A JP10669477A JPS5440958A JP S5440958 A JPS5440958 A JP S5440958A JP 10669477 A JP10669477 A JP 10669477A JP 10669477 A JP10669477 A JP 10669477A JP S5440958 A JPS5440958 A JP S5440958A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- prevented
- relaxation
- bead
- round hole
- 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
- Connection Of Plates (AREA)
Abstract
PURPOSE:To prevent crack at the relavation prevention welding part by forming a hole on the welding junction bead of the screw in which relaxation is prevented by welding junction. CONSTITUTION:On the welding bead 5 of which relaxation is prevented by partially welding a fixed material 3 on the head part of a flat head bolt 1b for tightening the fixed material 3, the welding beginning part or welding end part is cut and removed in a round hole form by cutting tools such as drills or grinders, and a round hole 8 is formed which has a diameter larger than the width of a screw gap 6 and a depth at a degree that the welded metal is cut and removed. Thus, the stress concentration coefficient at the welded bead 5 end decreases, and the crack at the relaxation preventing welding part due to stress concentration is prevented, and also stress corrosion crack is prevented, for the round hole 8 has a diameter larger than the width of the screw gap 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10669477A JPS5440958A (en) | 1977-09-07 | 1977-09-07 | Screw provided with relaxation prevention |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10669477A JPS5440958A (en) | 1977-09-07 | 1977-09-07 | Screw provided with relaxation prevention |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5440958A true JPS5440958A (en) | 1979-03-31 |
Family
ID=14440131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10669477A Pending JPS5440958A (en) | 1977-09-07 | 1977-09-07 | Screw provided with relaxation prevention |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5440958A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006230306A (en) * | 2005-02-25 | 2006-09-07 | Kobashi Kogyo Co Ltd | Apparatus for fastening tillage tine |
JP2015117713A (en) * | 2013-12-16 | 2015-06-25 | カヤバ工業株式会社 | Shock absorber and method of manufacturing shock absorber |
-
1977
- 1977-09-07 JP JP10669477A patent/JPS5440958A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006230306A (en) * | 2005-02-25 | 2006-09-07 | Kobashi Kogyo Co Ltd | Apparatus for fastening tillage tine |
JP2015117713A (en) * | 2013-12-16 | 2015-06-25 | カヤバ工業株式会社 | Shock absorber and method of manufacturing shock absorber |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |