JP5391306B2 - ねじの駆動穴 - Google Patents
ねじの駆動穴 Download PDFInfo
- Publication number
- JP5391306B2 JP5391306B2 JP2012110060A JP2012110060A JP5391306B2 JP 5391306 B2 JP5391306 B2 JP 5391306B2 JP 2012110060 A JP2012110060 A JP 2012110060A JP 2012110060 A JP2012110060 A JP 2012110060A JP 5391306 B2 JP5391306 B2 JP 5391306B2
- Authority
- JP
- Japan
- Prior art keywords
- driver bit
- ridge line
- drive hole
- screw
- tightening
- 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.)
- Active
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
日本工業規格 B1012 日本工業規格 B0101
2 頭部
2a 表面
3 ねじ山
4 脚部
10 駆動穴
11 係合溝
12 底面
13 締付け側面
13a 稜線
13b 外端点
13c 内端点
13d 水平稜線
13e 傾斜稜線
P 変曲点
14 弛め側面
14a 稜線
15 案内斜面
Claims (1)
- ドライバビットと係合する係合溝(11)が放射状に延びるねじの駆動穴において、
前記係合溝(11)は、ドライバビットによる締め付け方向への回転を伝達する締付け側面(13)と、弛め方向への回転を伝達する弛め側面(14)とを備え、
前記締付け側面(13)の上端は、係合溝(11)の外径から延びる水平稜線(13d)と、当該水平稜線(13d)と前記緩め側面(14)とを連ねる傾斜稜線(13e)とに成形され、
前記締付け側面(13)と弛め側面(14)との交点(13c)を中心として前記傾斜稜線(13e)を半径とする同心円状の範囲について、頭部表面をドライバビットによる締付け方向に沿って下る斜面(15)に成形する一方、
前記水平稜線(13d)に連なる頭部表面は斜面に成形されておらず、
前記斜面(15)と、斜面に成形されていないねじの頭部表面との間には段差が設定されていること
を特徴とするねじの駆動穴。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012110060A JP5391306B2 (ja) | 2012-05-11 | 2012-05-11 | ねじの駆動穴 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012110060A JP5391306B2 (ja) | 2012-05-11 | 2012-05-11 | ねじの駆動穴 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008029740A Division JP2009185995A (ja) | 2008-02-08 | 2008-02-08 | ねじ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012145235A JP2012145235A (ja) | 2012-08-02 |
JP5391306B2 true JP5391306B2 (ja) | 2014-01-15 |
Family
ID=46788982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012110060A Active JP5391306B2 (ja) | 2012-05-11 | 2012-05-11 | ねじの駆動穴 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5391306B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101778854B1 (ko) | 2015-10-13 | 2017-09-14 | 이영희 | 십자형 나사 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4202244A (en) * | 1978-07-26 | 1980-05-13 | Technofast, Inc. | Recessed head screw |
JPS59144213U (ja) * | 1983-03-18 | 1984-09-27 | ソニー株式会社 | ねじ |
JPS60101207U (ja) * | 1983-12-15 | 1985-07-10 | マックス株式会社 | ネジ |
US5171117A (en) * | 1991-10-16 | 1992-12-15 | Textron Inc. | Fastener with multilobular internal recess and tool entry ramps |
US7255522B2 (en) * | 2004-10-07 | 2007-08-14 | Phillips Screw Company | Spiral drive fastener with engagement ramp |
-
2012
- 2012-05-11 JP JP2012110060A patent/JP5391306B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2012145235A (ja) | 2012-08-02 |
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