SE0502886L - Screw - Google Patents
ScrewInfo
- Publication number
- SE0502886L SE0502886L SE0502886A SE0502886A SE0502886L SE 0502886 L SE0502886 L SE 0502886L SE 0502886 A SE0502886 A SE 0502886A SE 0502886 A SE0502886 A SE 0502886A SE 0502886 L SE0502886 L SE 0502886L
- Authority
- SE
- Sweden
- Prior art keywords
- shank
- radius
- segment
- larger
- groove
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
- F16B25/0052—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge having indentations, notches or the like in order to improve the cutting behaviour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0078—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw with a shaft of non-circular cross-section or other special geometric features of the shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Wood Science & Technology (AREA)
- Connection Of Plates (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A screw comprising a head part (50), a pointed insert part (52) and a shank part disposed between said head part and said pointed insert part and having a shank axis (A). The shank part comprising a first shank segment (53) adjacent to said head part and having a first radius (r0) relative to the shank axis, and a second shank segment (54) adjacent to said pointed insert part and having a surface that is formed with a helical screw thread (55) including interconnected thread sections that have a second radius (ii) relative to the shank axis and larger than the first radius. The second shank segment is provided with one lengthwise groove (56) having a curvature so that the depth of said groove is larger than zero but smaller than the outer diameter of said threads, and the length of said groove is larger than zero but smaller than the whole length of said shank part, said lengthwise groove extends upward from the pointed end. The surface of the second shank segment being further formed with at least one projecting element (57) between two neighbouring interconnected ones of said thread sections, said projecting element having a greatest radial dimension (r2) with respect to the shank axis that is greater than the first radius (r0) and less than or equal the second radius (r1),
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0502886A SE529577C2 (en) | 2005-12-22 | 2005-12-22 | Screw |
PCT/SE2006/050557 WO2007073326A1 (en) | 2005-12-22 | 2006-12-06 | Screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0502886A SE529577C2 (en) | 2005-12-22 | 2005-12-22 | Screw |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0502886L true SE0502886L (en) | 2007-06-23 |
SE529577C2 SE529577C2 (en) | 2007-09-25 |
Family
ID=38188944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0502886A SE529577C2 (en) | 2005-12-22 | 2005-12-22 | Screw |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE529577C2 (en) |
WO (1) | WO2007073326A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010093330A1 (en) * | 2009-02-16 | 2010-08-19 | Unisteel Technology Limited | Torque retention screw thread fastener and corresponding thread roll die |
TWM466982U (en) * | 2013-05-30 | 2013-12-01 | Shuenn Chang Fa Entpr Co Ltd | Screw |
CH713769A1 (en) * | 2017-05-12 | 2018-11-15 | Profix Ag | Wood screw. |
TWI744688B (en) * | 2019-09-03 | 2021-11-01 | 聚亨企業股份有限公司 | Self-tapping screws |
US11306761B2 (en) | 2019-12-11 | 2022-04-19 | Tycoons Group Enterprise Co., Ltd. | Self-tapping screw |
USD996962S1 (en) | 2020-11-17 | 2023-08-29 | National Nail Corp. | Screw |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6106208A (en) * | 1997-12-31 | 2000-08-22 | Lin; Jack | Screw with two cut removing curved grooves |
JP2003042122A (en) * | 2001-07-27 | 2003-02-13 | Yao Seibyou Kk | Wood screw |
TW539066U (en) * | 2002-06-17 | 2003-06-21 | Jau-Wei Lin | Wooden screw with low twisting torque |
-
2005
- 2005-12-22 SE SE0502886A patent/SE529577C2/en not_active IP Right Cessation
-
2006
- 2006-12-06 WO PCT/SE2006/050557 patent/WO2007073326A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
SE529577C2 (en) | 2007-09-25 |
WO2007073326A1 (en) | 2007-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |