JPS6426012A - Screw device - Google Patents
Screw deviceInfo
- Publication number
- JPS6426012A JPS6426012A JP17965987A JP17965987A JPS6426012A JP S6426012 A JPS6426012 A JP S6426012A JP 17965987 A JP17965987 A JP 17965987A JP 17965987 A JP17965987 A JP 17965987A JP S6426012 A JPS6426012 A JP S6426012A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- recess
- hexagonal
- tool engaging
- embedded
- 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
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
PURPOSE: To make it impossible to recognize that there is a tool engaging recess and to drive the screw out easily after the setting up by arranging a tool engaging recess in the screw head and dismountably mounting an embedded member in the recess. CONSTITUTION: A screw shaft 1 has a screw head 2 at one end. A hexagonal recess 3 as a tool engaging recess B is arranged on the screw head 2. The hexagonal recess 3 is adapted to engage with a driving tool such as a hexagonal wrench to drive in or out the screw. A female screw hole 4 is arranged in the innermost part of the hexagonal recess 3, capable of being screwed with the shaft portion 5 of an embedded screw C as an embedded member. A square recess 7a which forms an operational member 7 is arranged in the head 6 of the embedded screw C. Consequently it is difficult to recognize from outside that there exists a hexagonal recess 3 which is the tool engaging recess B, therefore it is not easy for a person not familiar with the structure of the screw A to drive out the screw A.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17965987A JPS6426012A (en) | 1987-07-17 | 1987-07-17 | Screw device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17965987A JPS6426012A (en) | 1987-07-17 | 1987-07-17 | Screw device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6426012A true JPS6426012A (en) | 1989-01-27 |
Family
ID=16069638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17965987A Pending JPS6426012A (en) | 1987-07-17 | 1987-07-17 | Screw device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6426012A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10045311B4 (en) * | 2000-09-12 | 2006-07-06 | Man Nutzfahrzeuge Ag | Oil separator for internal combustion engines |
JP2010138922A (en) * | 2008-12-09 | 2010-06-24 | Koji Ishido | Friction fastener, friction fastening structure, and friction fastener set for rotating body |
CN103163992A (en) * | 2011-12-17 | 2013-06-19 | 鸿富锦精密工业(深圳)有限公司 | Locking device |
JP2017044344A (en) * | 2015-08-26 | 2017-03-02 | 李超芸 | Semi-inverse screw thread removal screw |
-
1987
- 1987-07-17 JP JP17965987A patent/JPS6426012A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10045311B4 (en) * | 2000-09-12 | 2006-07-06 | Man Nutzfahrzeuge Ag | Oil separator for internal combustion engines |
DE10045311B9 (en) * | 2000-09-12 | 2007-03-08 | Man Nutzfahrzeuge Ag | Oil separator for internal combustion engines |
JP2010138922A (en) * | 2008-12-09 | 2010-06-24 | Koji Ishido | Friction fastener, friction fastening structure, and friction fastener set for rotating body |
CN103163992A (en) * | 2011-12-17 | 2013-06-19 | 鸿富锦精密工业(深圳)有限公司 | Locking device |
JP2017044344A (en) * | 2015-08-26 | 2017-03-02 | 李超芸 | Semi-inverse screw thread removal screw |
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