JPS5884412U - drill tapping screw - Google Patents

drill tapping screw

Info

Publication number
JPS5884412U
JPS5884412U JP17677882U JP17677882U JPS5884412U JP S5884412 U JPS5884412 U JP S5884412U JP 17677882 U JP17677882 U JP 17677882U JP 17677882 U JP17677882 U JP 17677882U JP S5884412 U JPS5884412 U JP S5884412U
Authority
JP
Japan
Prior art keywords
drill
drag
screw
tapping screw
shank
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.)
Granted
Application number
JP17677882U
Other languages
Japanese (ja)
Other versions
JPH0112011Y2 (en
Inventor
勇 藤原
Original Assignee
富士鋲螺株式会社
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 富士鋲螺株式会社 filed Critical 富士鋲螺株式会社
Priority to JP17677882U priority Critical patent/JPS5884412U/en
Publication of JPS5884412U publication Critical patent/JPS5884412U/en
Application granted granted Critical
Publication of JPH0112011Y2 publication Critical patent/JPH0112011Y2/ja
Granted legal-status Critical Current

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
    • F16B25/0031—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 screw being designed to be screwed into different materials, e.g. a layered structure or through metallic and wooden parts
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Drilling Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図１．２は本案ねじ２例の正面図、第２図１．２は
その底平面図、第３図はドリル部の第１図１．３−３線
の断面図、第４図１．　２．　３．　４は第１実施例の
ネジの使用例を示す工程断面図である。 １・・・ネジ、２・・・頭、３−・・シャンク、５・・
・ドリル部、６・・・切削用ネジ、８・・・テーパ一部
、５ｂ・・・抗力面、８ａ・・・一番取り部。 −トし＝→ ４−１　　　　　　Ｊ ｌ＝−Ｌ２−４Fig. 1 1.2 is a front view of two examples of the proposed screw, Fig. 2 1.2 is a bottom plan view thereof, Fig. 3 is a sectional view of the drill part taken along line 1.3-3 in Fig. 1, and Fig. 4 1. 2. 3. 4 is a process sectional view showing an example of how the screw of the first embodiment is used. 1...Screw, 2...Head, 3-...Shank, 5...
- Drill part, 6... Cutting screw, 8... Taper part, 5b... Resistance surface, 8a... First cut part. -Toshi=→ 4-1 J l=-L2-4

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 頭２付きシャンク３の先端にドリル部５が形成され、該
ドリル部５に続くシャンク３の外周に切削ネジ６が形成
されたネジ１において、前記ドリル部５はシャンク３の
軸心延長上にチゼルポイント７が形成され、該チゼルポ
イント７より頭２側に向ってテーパ一部８の一対を含む
錐形で横断面が扁平又は平板形状とされており、テーパ
一部８の終端部にそれぞれ一番取り部８ａが形成され、
該一番取り部８ａとそれぞれ対応する切削方向後行側に
抗力面５ｂが形成されており、該抗力面５ｂのそれぞれ
はドリル部５の長辺面５ａの辺長中間部近傍からゲージ
厚を徐々に厚くする曲面部に形成されており、該抗力面
５ｂの曲面部がそれぞれ切削くずの案内排除面とされて
いることを特徴とするドリルタッピングネジ。In the screw 1, a drill part 5 is formed at the tip of a shank 3 with a head 2, and a cutting screw 6 is formed on the outer periphery of the shank 3 following the drill part 5. A chisel point 7 is formed, and has a conical shape including a pair of tapered portions 8 from the chisel point 7 toward the head 2, and has a flat or flat cross-section. The first part 8a is formed,
A drag surface 5b is formed on the trailing side in the cutting direction corresponding to the first cut portion 8a, and each of the drag surfaces 5b has a gauge thickness extending from near the middle part of the long side surface 5a of the drill part 5. A drill tapping screw characterized in that it is formed with a curved surface portion that gradually becomes thicker, and each of the curved surface portions of the drag surface 5b serves as a guiding and removing surface for cutting waste.
JP17677882U 1982-11-22 1982-11-22 drill tapping screw Granted JPS5884412U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17677882U JPS5884412U (en) 1982-11-22 1982-11-22 drill tapping screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17677882U JPS5884412U (en) 1982-11-22 1982-11-22 drill tapping screw

Publications (2)

Publication Number Publication Date
JPS5884412U true JPS5884412U (en) 1983-06-08
JPH0112011Y2 JPH0112011Y2 (en) 1989-04-10

Family

ID=29970044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17677882U Granted JPS5884412U (en) 1982-11-22 1982-11-22 drill tapping screw

Country Status (1)

Country Link
JP (1) JPS5884412U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50773U (en) * 1973-05-01 1975-01-07
JPS5199764A (en) * 1975-02-28 1976-09-02 Gkn Screws Fasteners Ltd NEJIJIKUNIKANSURUKAIRYO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50773U (en) * 1973-05-01 1975-01-07
JPS5199764A (en) * 1975-02-28 1976-09-02 Gkn Screws Fasteners Ltd NEJIJIKUNIKANSURUKAIRYO

Also Published As

Publication number Publication date
JPH0112011Y2 (en) 1989-04-10

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