TWI711769B - 自攻螺絲 - Google Patents

自攻螺絲 Download PDF

Info

Publication number
TWI711769B
TWI711769B TW108136874A TW108136874A TWI711769B TW I711769 B TWI711769 B TW I711769B TW 108136874 A TW108136874 A TW 108136874A TW 108136874 A TW108136874 A TW 108136874A TW I711769 B TWI711769 B TW I711769B
Authority
TW
Taiwan
Prior art keywords
screw
thread
segment
self
tapping
Prior art date
Application number
TW108136874A
Other languages
English (en)
Other versions
TW202115321A (zh
Inventor
曾啟育
Original Assignee
曾啟育
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 曾啟育 filed Critical 曾啟育
Priority to TW108136874A priority Critical patent/TWI711769B/zh
Priority to US17/067,767 priority patent/US11473607B2/en
Priority to AU2020102686A priority patent/AU2020102686A4/en
Application granted granted Critical
Publication of TWI711769B publication Critical patent/TWI711769B/zh
Publication of TW202115321A publication Critical patent/TW202115321A/zh

Links

Images

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
    • F16B25/0036—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
    • F16B25/0057—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 screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
    • 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
    • F16B25/0047—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 being characterised by its cross-section in the plane of the shaft axis
    • 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
    • F16B25/0073—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 characterised by its pitch, e.g. a varying pitch
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

本發明係為一種自攻螺絲，包含有一頭部，頭部下側設有螺桿，螺桿前端設有鑽尾部，該螺桿之前端相對鑽尾部上方形成第一段螺牙，該螺桿之後端相對頭部下方至少二螺牙形成第二段螺牙，該第二段螺牙之牙山夾角係為第一段螺牙之牙山夾角之1.15~1.2倍，且該第二段螺牙之牙底徑係隨第二段螺牙之山夾角比例增加；藉此，俾提供一種可緊密鎖合且不會空轉之自攻螺絲。

Description

自攻螺絲
本發明係為一種自攻螺絲，特別是一種針對鎖合於薄板上之自攻螺絲予以改良設計，俾提供一種可緊密鎖合且不會空轉之自攻螺絲。
目前建築、汽車工業上，由於金屬薄板具有重量輕、成本較低之優點，因此會應用許多金屬薄板來搭建、組裝成建築物、屋頂牆壁、大型機具、汽車、…等，而該金屬薄板與建物、鋼骨或支撐物件之結合，則會利用自攻螺絲來螺鎖結合。就如第1圖所示，其係目前用以鎖合於薄板上之自攻螺絲10，該自攻螺絲10包含有一頭部11，頭部11下側設有螺桿12，螺桿12之底端設有鑽尾部13；藉此，利用鑽尾部13可對薄板20進行鑽孔，然後持續鎖入，使螺桿12可與薄板20螺鎖結合。
而查，由於該上述自攻螺絲10之螺桿12上所設之螺牙牙山角度θ每一個皆相同，因此在經螺桿12前段之旋轉攻牙後，該薄板20所成型之螺孔21會有擴張之情事發生(如第2圖所示)，且當薄板20之厚度多小於螺桿12之螺牙牙距，使得自攻螺絲10旋鎖到底使頭部11與薄板20接觸後，很容易造成自攻螺絲10空轉，且該螺桿12之螺牙無法與薄板20螺鎖結合，造成薄板20與支撐物件間無法鎖固定位，使得薄板20與自攻螺絲10會產生搖動，當薄板20受外力(如：強風)作用時，甚至會與自攻螺絲10一同脫離支撐物件，進而會有危險與危害人員安全之缺失。
本發明之目的，即在於改善上述自攻螺絲所具有之缺失，俾提供一種可緊密鎖合且不會空轉之自攻螺絲構造。
為達到上述目的，本發明之自攻螺絲，包含有一頭部，頭部下側設有螺桿，螺桿前端設有鑽尾部，該螺桿之前端相對鑽尾部上方形成第一段螺牙，該螺桿之後端相對頭部下方至少二螺牙形成第二段螺牙，該第二段螺牙之牙山夾角係為第一段螺牙之牙山夾角之1.15~1.2倍，且該第二段螺牙之牙底徑係隨第二段螺牙之山夾角依比例增加；
藉此，俾提供一種可緊密鎖合且不會空轉之自攻螺絲。
10:自攻螺絲
11:頭部
12:螺桿
13:鑽尾部
20:薄板
21:螺孔
30:自攻螺絲
31:頭部
32:螺桿
32A:第一段螺牙
32B:第二段螺牙
33:鑽尾部
40:薄板
41:螺孔
42:螺孔
θ:螺牙牙山夾角
α:第一段螺牙牙山夾角
β:第二段螺牙牙山夾角
D1:第一段螺牙牙底徑
D2:第二段螺牙牙底徑
第1圖係習用自攻螺絲之側視圖。
第2圖係自攻螺絲之側視圖，及鎖合於薄板及支撐物件上之示意圖。
第3圖係本發明自攻螺絲之側視圖。
第4圖係本發明自攻螺絲之側視圖，及鎖合於薄板及支撐物件上之示意圖。
有關本發明為達到目的所運用之技術手段及其構造，茲謹再配合第3至第4圖所示之實施例，詳細說明如下：
如第3圖所示，本發明之自攻螺絲30，包含有一頭部31，頭部31下側設有螺桿32，螺桿32前端設有鑽尾部33，該螺桿32之下半部形成第一段螺牙32A，該螺桿32之後端相對頭部31下方至少二螺牙(即一 牙距)形成第二段螺牙32B，該第一段螺牙32A之牙山夾角為α，該第二段螺牙32B之牙山夾角為β，該第一段螺牙32A之牙底徑為D1，該第二段螺牙32B之牙底徑為D2，且該第二段螺牙32B之牙山夾角β係為第一段螺牙32A之牙山夾角α之1.15~1.2倍，該第二段螺牙32B之牙底徑D2為第一段螺牙32A之牙底徑D1之1.15~1.2倍，並令該第二段螺牙32B之牙底徑D2係隨第二段螺牙32B之牙山夾角β依比例增加。
較佳之實施例是，當該第一段螺牙32A之牙山夾角α為60°時，該第二段螺牙32B之牙山夾角β則為70°，以符合最佳螺鎖角度。
藉由上述構造，如第4圖所示，本發明之自攻螺絲30利用鑽尾部33鑽孔攻入薄板40後，該螺桿32之第一段螺牙32A即進行鑽孔攻牙形成螺孔41，然後自攻螺絲30持續攻入，使第二段螺牙32B鎖合於薄板40上，此時，由於第二段螺牙32B之牙山夾角β與牙底徑D2為第一段螺牙32A之牙山夾角α與牙底徑D1之1.15~1.2倍，因此第二段螺牙32B可對薄板40之螺孔41進行迫緊鎖合，使形成較大之螺孔42使得第二段螺牙32B可緊密鎖固結合於薄板40上。
特別說明的是，由於薄板40經本發明自攻螺絲30之第一段螺牙32A持續鑽孔攻牙一段時間後，該螺孔41會略為擴大；然後藉由本發明之第二段螺牙32B係設於螺桿32末端，且第二段螺牙32B之牙山夾角β與牙底徑D2皆較大，使得第二段螺牙32B可以對薄板40之螺孔41進行迫緊鎖合形成較大之螺孔42，且使螺孔42與第二段螺牙32B之接觸面積增加，進而可令第二段螺牙32B可直接與螺孔42緊密結合，使得本發明之自攻螺絲30確可與薄板40鎖合固定；當將自攻螺絲30旋入至底時，自攻螺 絲30不會有空轉、無法鎖緊之情事發生，縱使薄板40之厚度小於本發明所設螺桿32之螺牙牙距，藉由第二段螺牙32B與螺孔42之緊密結合，使本發明之自攻螺絲30確可有效鎖固定位於薄板40上。
由是，從以上所述可知，本發明之自攻螺絲確具有顯著之進步性，且其構造及方法確為未曾有過，誠已符合發明專利之要件，爰依法提出專利申請，並祈賜專利為禱，至感德便。
惟以上所述，僅為本發明之可行實施例，該實施例主要僅在於用以舉例說明本發明為達到目的所運用之技術手段及其構造，因此並不能以之限定本發明之保護範圍，舉凡依本發明說明書及申請專利範圍所為之等效變化或修飾，皆應仍屬本發明所涵蓋之保護範圍者。
30:自攻螺絲
31:頭部
32:螺桿
32A:第一段螺牙
32B:第二段螺牙
33:鑽尾部
α:第一段螺牙牙山夾角
β:第二段螺牙牙山夾角
D1:第一段螺牙牙底徑
D2:第二段螺牙牙底徑

Claims (1)

  1. 一種自攻螺絲，包含有一頭部，頭部下側設有螺桿，螺桿前端設有鑽尾部，該螺桿之前端相對鑽尾部上方形成第一段螺牙，該螺桿之後端相對頭部下方至少二螺牙形成第二段螺牙，該第二段螺牙之牙山夾角係為第一段螺牙之牙山夾角之1.15~1.2倍，且該第二段螺牙之牙底徑係隨第二段螺牙之牙山夾角比例增加。
TW108136874A 2019-10-14 2019-10-14 自攻螺絲 TWI711769B (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW108136874A TWI711769B (zh) 2019-10-14 2019-10-14 自攻螺絲
US17/067,767 US11473607B2 (en) 2019-10-14 2020-10-12 Self-tapping screw
AU2020102686A AU2020102686A4 (en) 2019-10-14 2020-10-12 Self-tapping screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW108136874A TWI711769B (zh) 2019-10-14 2019-10-14 自攻螺絲

Publications (2)

Publication Number Publication Date
TWI711769B true TWI711769B (zh) 2020-12-01
TW202115321A TW202115321A (zh) 2021-04-16

Family

ID=73551709

Family Applications (1)

Application Number Title Priority Date Filing Date
TW108136874A TWI711769B (zh) 2019-10-14 2019-10-14 自攻螺絲

Country Status (3)

Country Link
US (1) US11473607B2 (zh)
AU (1) AU2020102686A4 (zh)
TW (1) TWI711769B (zh)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1219723A (en) * 1968-04-25 1971-01-20 Illinois Tool Works Screws and methods and apparatus for making them
US3661046A (en) * 1970-11-09 1972-05-09 Illinois Tool Works Combination screw
DE3117624A1 (de) * 1981-05-05 1983-01-13 J. Georg Bierbach Schraubenfabrik, 5990 Altena Selbstformende universalschraube
EP0142037A1 (de) * 1983-10-14 1985-05-22 Alfons Knoche Universalschraube
DE4041765A1 (de) * 1990-12-24 1992-06-25 Hardo Befestigungen Gmbh Einschraubduebel
US5882162A (en) * 1996-11-29 1999-03-16 Max Co., Ltd. Driving screw
TWM351278U (en) * 2008-07-22 2009-02-21 Drawlin Industry Co Ltd Structural improvement of screw
TWM474080U (zh) * 2013-10-17 2014-03-11 shi-zhong Huang 複合材料鑽尾螺絲之改良構造
CN205605596U (zh) * 2013-08-30 2016-09-28 佛吉亚汽车内部设备工业公司 有螺纹的固定元件

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643543A (en) * 1970-09-04 1972-02-22 Textron Inc Machine screw
US5120171A (en) * 1990-11-27 1992-06-09 Stuart Surgical Bone screw with improved threads
US6000892A (en) * 1998-12-11 1999-12-14 Yao Seibyo Kabushiki Kaisha Wood screw
DE10235817B4 (de) * 2002-08-05 2004-08-05 Ejot Gmbh & Co. Kg Selbstfurchende Schraube
US20070128001A1 (en) * 2005-12-07 2007-06-07 Guo-Cai Su Screw with two types of threads
TWM294585U (en) * 2006-01-09 2006-07-21 Easylink Ind Co Ltd Screw structure
US7988396B2 (en) * 2007-10-11 2011-08-02 Handy & Harman Deck screw
DE202012001847U1 (de) * 2012-02-23 2012-03-05 Ruia Global Fasteners Ag Selbstfurchende Schraube
US9526309B2 (en) * 2013-04-29 2016-12-27 George-Michael Huyke-Phillips Magnetized liner for storage and holding bags
US9593705B2 (en) * 2014-03-01 2017-03-14 Franklin Hall Steel stud anchor
US20160003283A1 (en) * 2014-03-01 2016-01-07 Franklin Jiri CALL Steel stud anchor
US11137012B2 (en) * 2019-02-21 2021-10-05 Kuo Tai Hsu Wood screw

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1219723A (en) * 1968-04-25 1971-01-20 Illinois Tool Works Screws and methods and apparatus for making them
US3661046A (en) * 1970-11-09 1972-05-09 Illinois Tool Works Combination screw
DE3117624A1 (de) * 1981-05-05 1983-01-13 J. Georg Bierbach Schraubenfabrik, 5990 Altena Selbstformende universalschraube
EP0142037A1 (de) * 1983-10-14 1985-05-22 Alfons Knoche Universalschraube
DE4041765A1 (de) * 1990-12-24 1992-06-25 Hardo Befestigungen Gmbh Einschraubduebel
US5882162A (en) * 1996-11-29 1999-03-16 Max Co., Ltd. Driving screw
TWM351278U (en) * 2008-07-22 2009-02-21 Drawlin Industry Co Ltd Structural improvement of screw
CN205605596U (zh) * 2013-08-30 2016-09-28 佛吉亚汽车内部设备工业公司 有螺纹的固定元件
TWM474080U (zh) * 2013-10-17 2014-03-11 shi-zhong Huang 複合材料鑽尾螺絲之改良構造

Also Published As

Publication number Publication date
TW202115321A (zh) 2021-04-16
US11473607B2 (en) 2022-10-18
AU2020102686A4 (en) 2020-12-03
US20210108665A1 (en) 2021-04-15

Similar Documents

Publication Publication Date Title
US9523383B2 (en) Variable thread fastener
US7334976B2 (en) Countersunk screw
US4820098A (en) Screw
JP6452795B2 (ja) ロックナット
US20190264728A1 (en) Advanced Nut and Bolt
BR112013027513A2 (pt) parafuso auto-atarraxante
JP2009275727A (ja) 緩み止めロック装置
TWI711769B (zh) 自攻螺絲
TWM590643U (zh) 自攻螺絲
TWM549832U (zh) 防鬆螺母
CN208651396U (zh) 一种垫片螺母
JP2019120338A (ja) ねじの緩み止め構造
WO2022057750A1 (zh) 一种具有轴承结构的防松动紧固组件
JP4842239B2 (ja) ねじ鉄筋の定着板および定着構造
JP3206838U (ja) ネジセット
JP3204727U (ja) ロックナット
CN205744799U (zh) 一种防滑丝螺栓
WO2013180239A1 (ja) タッピンねじ及びその取り付け構造
CN110410409B (zh) 一种防松螺母
CN110630616A (zh) 一种永不松动的螺栓螺母件
US12038034B2 (en) Self-drilling, anti-burr, threaded fastener
US1063146A (en) Lock-nut.
US20140017033A1 (en) Self-tapping screw
CN216382189U (zh) 一种钢结构构件连接用防松动螺母
CN214331155U (zh) 一种花齿紧固件