TWI408293B - 自行鑽孔螺釘 - Google Patents

自行鑽孔螺釘 Download PDF

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Publication number
TWI408293B
TWI408293B TW098107798A TW98107798A TWI408293B TW I408293 B TWI408293 B TW I408293B TW 098107798 A TW098107798 A TW 098107798A TW 98107798 A TW98107798 A TW 98107798A TW I408293 B TWI408293 B TW I408293B
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TW
Taiwan
Prior art keywords
drill tip
self
cutting edge
screw
distance
Prior art date
Application number
TW098107798A
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English (en)
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TW200946787A (en
Inventor
Michael Baumgartner
Albert Loichinger
Original Assignee
Hilti Ag
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 Hilti Ag filed Critical Hilti Ag
Publication of TW200946787A publication Critical patent/TW200946787A/zh
Application granted granted Critical
Publication of TWI408293B publication Critical patent/TWI408293B/zh

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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
    • F16B25/0021—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 metal, e.g. sheet-metal or aluminium
    • 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
    • F16B25/0084—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 geometric details of the tip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9095—Having peripherally spaced cutting edges with axially extending relief channel
    • Y10T408/9097—Spiral channel

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Drilling Tools (AREA)

Description

自行鑽孔螺釘
本發明為在相當部位帶螺紋之自行鑽孔螺釘，螺釘體之一端有頭，另一端有鑽尖，即在螺釘體之對端，鑽尖至少有一第一刀刃，至少有一第二刀刃，一第一切屑槽與第一刀刃結合，自頭自由端第一起動點開始，位於鑽尖之第一面，一第二切屑槽與第二刀刃結合，自鑽尖自由端第二起動點開始，位於鑽尖第一面對面之第二面，鑽尖有一中心位於螺釘體界定之縱軸。
上述自行鑽孔螺釘用於旋緊主要在屋頂之金屬薄板與金屬支柱。
自行鑽孔螺釘具有鑽尖，可鑽一孔貫穿薄板之螺釘。德國公告之DE 198 03 672 A1專利公開之一種自行鑽孔螺釘，具有螺釘體，頭位於螺釘體之一端，鑽尖位於螺釘體之另一端，該端有第一刀刃及第二刀刃。鑽尖有兩個切屑槽自有關刀刃朝頭之方向沿螺釘之縱軸延伸。切屑槽用於移除鑽孔產生之碎屑。有關刀刃上兩個切屑槽之起動點在鑽尖上旋轉對稱。鑽尖與頭之間，自行鑽孔螺釘部分部位尚帶螺紋。
因此，本發明之目的在排除上述自行鑽孔螺釘之缺點。
本發明之目的，顯然在提供上述自行鑽孔螺釘，該螺釘之第一及第二起動點，相互對立，與鑽尖中心保持平均距離，彼此間平均距離相當於鑽尖直徑.01與.15之間，最大距離相當於平均距 離0與8之間。
起動點此一位置，參考鑽尖之縱軸，產生一非對稱尖幾何(學)。這種幾何，至少刀刃之一(在旁邊之第一及第二刀刃與第三刀刃)位於鑽尖中心內。結果，中心內移除之材料，並非被鑽尖擠壓出去，而係通過鑽尖中心兩邊之碎屑槽移除者。
平均距離相當於鑽尖直徑.03與.06之間時特別有利。如此中心內切屑之振動與移除使鑽尖達到最高設計功效。
依照本發明之自行鑽孔螺釘，示於第一至四圖中，具有帶螺紋13之螺釘體，在其部位之一中，鑽尖12及在鑽尖12之對端，有頭15。自行鑽孔螺釘10之縱軸L界定自行鑽孔螺釘10之軸向。自行鑽孔螺釘10之頭15有一轉動帶動元件16之多邊形形狀供趕錐或扳手用。
鑽尖12，在其自由端，有至少一個第一刀刃21及至少一第二刀刃22彼此間有一角度。具體實施例中示於圖式中者，一第三刀刃23位於第一刀刃21與第二刀刃22之間。第三刀刃23越過鑽尖12之中心Z，鑽尖12躺在縱軸上。
在鑽尖12內，有一第一碎屑槽24及第二碎屑槽25。兩個碎屑槽24、25自鑽尖12之自由端14，於位於鑽尖12朝頭15之方向沿自行鑽孔螺釘之縱軸L延伸。第一碎屑槽24與第一刀刃21結合，於位於鑽尖12第一邊起動點26之自由端開始。第二碎屑槽25與第二刀刃22結合，自第一邊(特別參閱第三圖對面 位於鑽尖12之第二邊起動點27)之自由端14開始。兩個起動點26、27在彼此間最大距離Y，及二者間與鑽尖12之中心Z平均距離X。該平均距離X相當於鑽尖12之直徑D .01與.15間之平均距離，距離Y相當於平均距離X之0到.08間。最好是，平均距離X相當於直徑D .03與.06之間。
平均距離X是第一起動點26與第二起動點27到鑽尖12中心Z距離之算術平均值。
雖然發明曾參考最佳具體實施例予以圖示及說明，此僅係本發明之說明性例子，並非本發明之限制，而且本發明各種不同之修正，對精於此一技藝者乃理所當然之事。所以，並無意將本發明限制在公開之具體實施例之範圍或其細節，而且本發明經申請專利範圍界定者，包括在本發明精神與範圍內之全部變化及/或替代性具體實施例。
10‧‧‧自行鑽孔螺釘
11‧‧‧螺釘體
12‧‧‧鑽尖
13‧‧‧螺紋
14‧‧‧自由端
15‧‧‧頭
16‧‧‧轉動帶動元件
17‧‧‧旋入螺釘方向
21‧‧‧第一刀刃
22‧‧‧第二刀刃
23‧‧‧第三刀刃
24‧‧‧碎屑槽
25‧‧‧碎屑槽
26‧‧‧起動點
27‧‧‧起動點
30‧‧‧機械構件
L‧‧‧縱軸
Y‧‧‧距離(容量)
第一圖：依照本發明自行鑽孔螺釘之側視圖。
第二圖：第三圖方向Ⅱ中所示自行鑽孔螺釘詳細圖之側視圖。
第三圖：第二圖方向Ⅲ中之新發明自行鑽孔螺釘之鑽尖自由端之端視圖。
第四圖：第三圖方向Ⅳ第一圖所示自行鑽孔螺釘詳細圖Ⅱ之側視圖。
10‧‧‧自行鑽孔螺釘
11‧‧‧螺釘體
12‧‧‧鑽尖
13‧‧‧螺紋
14‧‧‧自由端
15‧‧‧頭
16‧‧‧轉動帶動元件
21‧‧‧第一刀刃
22‧‧‧第二刀刃
23‧‧‧第三刀刃
24‧‧‧碎屑槽
L‧‧‧縱軸

Claims (3)

  1. 一種自行鑽孔螺釘(10)，具有至少部分部位帶螺紋(13)之螺釘體(11)，由縱軸(L)界定，第一端有直徑(D)之鑽尖(12)，對面第二端有頭(15)，鑽尖(12)至少有一第一刀刃(21)，至少有一第二刀刃(22)，鑽尖(12)有一第一碎屑槽(24)附加於第一刀刃(21)，第一起動點(26)自鑽尖(12)之自由端(14)開始，位於鑽尖(12)之第一面，第二碎屑槽(25)附加於第二刀刃(22)，第二起動點(27)自鑽尖(12)之自由端(14)開始；位於鑽尖(12)第一面對面之第二面，鑽尖(12)有一縱軸(L)中心(Z)，其特徵為兩個起動點(26、27)具有最大容量(Y)相互對立與中心(Z)平均距離(X)，相當於直徑之0.01至0.15倍，而容量(Y)相當於距離之0至0.8倍。
  2. 如申請專利範圍第1項之自行鑽孔螺釘，其中距離(X)相當於直徑(D)之0.03至0.06倍。
  3. 如申請專利範圍第1或2項之自行鑽孔螺釘，其中有一第三刀刃(23)，位於第一與第二刀刃(21、22)之間，通過中心(Z)，起動點(26、27)各自面對第三刀刃之一面。
TW098107798A 2008-03-13 2009-03-10 自行鑽孔螺釘 TWI408293B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008000652.1A DE102008000652B4 (de) 2008-03-13 2008-03-13 Selbstbohrschraube

Publications (2)

Publication Number Publication Date
TW200946787A TW200946787A (en) 2009-11-16
TWI408293B true TWI408293B (zh) 2013-09-11

Family

ID=40823234

Family Applications (1)

Application Number Title Priority Date Filing Date
TW098107798A TWI408293B (zh) 2008-03-13 2009-03-10 自行鑽孔螺釘

Country Status (7)

Country Link
US (1) US8444360B2 (zh)
EP (1) EP2101069A3 (zh)
JP (1) JP5416995B2 (zh)
CN (1) CN101532530A (zh)
DE (1) DE102008000652B4 (zh)
RU (1) RU2009108954A (zh)
TW (1) TWI408293B (zh)

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Publication number Priority date Publication date Assignee Title
US20100183400A1 (en) * 2009-01-22 2010-07-22 Ho-Tien Chen Self-drilling screw
TW201350690A (zh) * 2012-06-12 2013-12-16 Yuan-Qi Li 螺絲鑽尾結構
US9518599B2 (en) * 2014-04-10 2016-12-13 Simpson Strong-Tie Company, Inc. Metal to metal fastener
US10794495B2 (en) 2015-05-23 2020-10-06 Gabriel Telles Villanueva Power-driven gate valve
USD854919S1 (en) * 2016-05-13 2019-07-30 Gabriel T. Villanueva Combined rotatable gate valve shaft with coupler
USD898557S1 (en) * 2018-07-10 2020-10-13 Screw King Co., Ltd. Self drilling tapping screw
CN110081060A (zh) * 2019-05-30 2019-08-02 浙江洪扬汽车零部件有限公司 一种新型导屑型钻孔螺杆
US11371546B2 (en) * 2019-10-25 2022-06-28 Bi-Mirth Corp. Self-drilling screw structure
US12000421B2 (en) * 2021-01-07 2024-06-04 Illinois Tool Works Inc. Self-drilling self-tapping fastener
US11994236B2 (en) 2021-11-04 2024-05-28 Gabriel T. Villanueva Impact driver valve systems

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Also Published As

Publication number Publication date
JP2009222228A (ja) 2009-10-01
RU2009108954A (ru) 2010-09-20
EP2101069A3 (de) 2010-11-17
TW200946787A (en) 2009-11-16
US8444360B2 (en) 2013-05-21
US20090232619A1 (en) 2009-09-17
DE102008000652A1 (de) 2009-09-17
DE102008000652B4 (de) 2018-12-06
JP5416995B2 (ja) 2014-02-12
EP2101069A2 (de) 2009-09-16
CN101532530A (zh) 2009-09-16

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