SE0502886L - Screw - Google Patents

Screw

Info

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
Application number
SE0502886A
Other languages
Swedish (sv)
Other versions
SE529577C2 (en
Inventor
Chao-Wei Lin
Original Assignee
Essve Produkter Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Essve Produkter Ab filed Critical Essve Produkter Ab
Priority to SE0502886A priority Critical patent/SE529577C2/en
Priority to PCT/SE2006/050557 priority patent/WO2007073326A1/en
Publication of SE0502886L publication Critical patent/SE0502886L/en
Publication of SE529577C2 publication Critical patent/SE529577C2/en

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

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),
SE0502886A 2005-12-22 2005-12-22 Screw SE529577C2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO2007073326A1 (en) 2007-06-28
SE529577C2 (en) 2007-09-25

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Legal Events

Date Code Title Description
NUG Patent has lapsed