CN101929496A - Self drilling screw with more than two angles - Google Patents
Self drilling screw with more than two angles Download PDFInfo
- Publication number
- CN101929496A CN101929496A CN2009101467439A CN200910146743A CN101929496A CN 101929496 A CN101929496 A CN 101929496A CN 2009101467439 A CN2009101467439 A CN 2009101467439A CN 200910146743 A CN200910146743 A CN 200910146743A CN 101929496 A CN101929496 A CN 101929496A
- Authority
- CN
- China
- Prior art keywords
- self drilling
- positioning head
- drilling screws
- angles
- angle
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 46
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 8
- 230000002146 bilateral effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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
- F16B25/10—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
- F16B25/0036—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)
- Earth Drilling (AREA)
Abstract
The invention provides a self drilling screw with more than two angles, which comprises a head part, a rod body, a plurality of screw threads and a self drilling part in turn along a central axis direction of the self drilling screw, wherein the plurality of screw threads are formed on the rod body and extend axially; the self drilling part is formed on the front end and has more than two angles; the front end of the self drilling part is provided with a positioning head which has a certain point angle and can be used for pilot positioning, so that influences of the deviation generated in a locking processing on drilling lock accuracy is avoided; the positioning head symmetrically extends towards the two sides and is provided with flat blade segments and lateral blades in turn, and included angles of certain degrees are formed between the flat blade segments on the two sides of the positioning head; and the lateral blades are end parts formed by the extension parts of the flat blade segments and one side of the self drilling part, can discharge scraps cut by the flat blade segments, and due to the position between the extension part of the flat blade segments and one side of the self drilling part, have the effect of strengthening the whole structure.
Description
Technical field
The present invention relates to have the SELF DRILLING SCREWS of two or more angles, especially relate to being easy to bore be locked on the metal sheet and can not make this SELF DRILLING SCREWS produce the damage phenomenon when sealed and can allow and consider the SELF DRILLING SCREWS that slag is easy to discharge to be worth doing.
Background technique
Consult shown in Figure 1, SELF DRILLING SCREWS A10 of the prior art establishes one at its tail end to bore tail A11, and be provided with blade A12 in boring the most advanced and sophisticated both sides of tail, and press from both sides into an obtuse angle alpha between the blade A12 of both sides, this type of SELF DRILLING SCREWS A10 relies on tip and blade A12 with this obtuse angle alpha to hole, so when this SELF DRILLING SCREWS A10 with two or more angles is used for boring when being locked on the metal sheet, this kind structure has following drawback in the use:
One, since between the blade A12 of its both sides of SELF DRILLING SCREWS A10 of the prior art the formed tip of obtuse angle alpha of folded one-tenth be place, screw location, this α angle can influence location and boring cutting speed, if the little then accurate positioning of α angle but the boring cutting speed is slow; If the α angle greatly then locating effect not good but boring cutting speed very fast.
Two, because the SELF DRILLING SCREWS A10 of prior art is directly with the blade A12 cutting of holing, so if there is not the structure of other Strengthenable blade A12, in case SELF DRILLING SCREWS A10 runs into the high slightly metal sheet of intensity, its tip and blade A12 then are easier to damage.
Summary of the invention
Main purpose of the present invention is to provide a kind of SELF DRILLING SCREWS with two or more angles, be suitable for especially easily boring being locked on the metal sheet, and the structure of this SELF DRILLING SCREWS is more strong and make the boring cutting more quick.
For reaching aforementioned goal of the invention, the technological means that the present invention used is for providing a kind of SELF DRILLING SCREWS with two or more angles, this SELF DRILLING SCREWS comprises head, the body of rod successively, is formed on the body of rod and is axially extended a plurality of screw thread and two brill afterbodys with upper angle of front end formation along its central axis direction extension, wherein, the front end of this brill afterbody is provided with a positioning head, this positioning head is one to have tip angle, can do the effect of location in advance; And this positioning head is provided with flat sword section and side edge successively toward the bilateral symmetry extension, and the angle of the intersegmental formation several angle of flat sword of positioning head both sides, and the intersegmental folded angle of the flat sword of these both sides big more (being 180 degree to the maximum), and its boring cutting speed is fast more; This side edge then is that a flat sword section is extended and the formed end of a side of boring afterbody, and it not only can be in order to the function of auxiliary bore hole cutting, and having more the surplus bits that flat sword section is cut out derives and strengthen and bore afterbody, prevent the effect that ruptures.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming embodiment's the description below in conjunction with accompanying drawing, wherein:
Fig. 1 is the SELF DRILLING SCREWS schematic representation of prior art;
Fig. 2 is the schematic perspective view according to one of embodiment of the invention;
Fig. 3 is a schematic perspective view according to another embodiment of the present invention;
Fig. 4 is the partial enlarged drawing according to one of embodiment of the invention;
Fig. 5 is according to front view of one of embodiment of the invention and partial enlarged drawing.
Symbol implication in the accompanying drawing is as follows:
Prior art
The A10 SELF DRILLING SCREWS
A11 bores tail
The A12 blade;
The present invention
10 SELF DRILLING SCREWS, 11 heads
12 bodies of rod, 121 screw threads
13 bore afterbody 131 positioning heads
132 flat sword section 133 side edges.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar assembly or the assembly with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
Consult Fig. 2 to shown in Figure 4, SELF DRILLING SCREWS with two or more angles of the present invention, this SELF DRILLING SCREWS 10 comprises head 11 successively along its central axis direction extension, the body of rod 12, be formed on the body of rod 12 and be axially extended a plurality of screw thread 121 and two brill afterbodys 13 of front end formation with upper angle, wherein, the front end of this brill afterbody 13 is provided with a positioning head 131, this positioning head 131 has certain tip angle, when it locks metal sheet in SELF DRILLING SCREWS 10 of the present invention, this positioning head 131 can be done the usefulness of location in advance, and the accuracy of lock is bored in influence to produce skew in the process that prevents to lock.
In addition, positioning head 131 of the present invention is provided with flat sword section 132 and side edge 133 successively toward the bilateral symmetry extension, shown in Fig. 4,5, and 132 of the flat sword sections of these positioning head 131 both sides form several angle θ, after its positioning head 131 in SELF DRILLING SCREWS 10 of the present invention is positioned metal sheet, the effect that the flat sword section 132 of both sides can and then be holed and cut, and big more 180 degree that are to the maximum of the angle θ that two flat sword sections are 132, its boring cutting speed is fast more, and after SELF DRILLING SCREWS 10 concrete enforcements of the present invention, this angle θ is best between between 160 degree～180 degree;
SELF DRILLING SCREWS 10 with two or more angles of the present invention has following advantage in the use and more is better than SELF DRILLING SCREWS A10 of the prior art:
One, consults shown in Fig. 1,4,5, because the formed tip of obtuse angle alpha of folded one-tenth is place, screw location between its both sides of SELF DRILLING SCREWS A10 blade A12 of prior art, this α angle can influence the location and boring cutting speed, if the little then accurate positioning of α angle but boring cutting speed slow; If the α angle greatly then locating effect not good but boring cutting speed very fast; And the brill afterbody 13 with SELF DRILLING SCREWS of two or more angles of the present invention has plural angle, its front end is provided with positioning head 131 and the flat sword section that is formed at both sides, wherein, this positioning head 131 is one to have the tip of angle, when SELF DRILLING SCREWS 10 of the present invention is locked metal sheet, the usefulness of location in advance can be done in the tip of this positioning head 131, the boring cutting speed then is subjected to the of the present invention two flat sword section 132 folded angle θ that establish to be influenced, in the time must more quickly shooting the boring cutting, this θ angle big more (being 180 degree to the maximum), not reason boring cutting speed influence location; Therefore the SELF DRILLING SCREWS design with two or more angles of the present invention more has boring concurrently and cuts effect fast except that can effectively locating.
Two, consult shown in Fig. 1,5, because the SELF DRILLING SCREWS A10 of prior art is directly with the blade A12 cutting of holing, so, if the structure of other Strengthenable blade of nothing A12, in case SELF DRILLING SCREWS A10 runs into the high slightly metal sheet of intensity, its tip and blade A12 then are easier to damage; And the positioning head 131 of SELF DRILLING SCREWS of the present invention is provided with flat sword section 132 and side edge 133 successively toward the bilateral symmetry extension, and 132 of the flat sword sections of positioning head 131 both sides form several angle θ, difference according to the angle θ of 132 of this two flat sword sections, can reach the effect of the cutting of further holing apace, and this side edge 133 is the formed end of a side that afterbody 13 is extended and bored to flat sword section 132, it not only can be in order to assisted machining, the more surplus bits of 132 drillings of flat sword section can be derived, and, make it to have more to strengthen and bore afterbody because of the extension and a side of boring afterbody 13 of its boundary in flat sword section 132, prevent the effect that ruptures.
The above is the explanation of structure of the present invention being done preferred embodiment, is can do multiple variation or modify embodiment and comply with design spirit of the present invention.Therefore, obvious replacement and the modification that can do for those skilled in the art will be incorporated within the claim that the present invention advocates.
Claims (3)
1. SELF DRILLING SCREWS with two or more angles, this SELF DRILLING SCREWS are extended along its central axis direction and are comprised head, the body of rod successively, are formed on the body of rod and are axially extended a plurality of screw thread and front end forms two brill afterbodys with upper angle, it is characterized in that:
The front end of this brill afterbody is provided with positioning head, and this positioning head is one to have the tip of angle; Described positioning head is provided with flat sword section toward the bilateral symmetry extension, and the intersegmental formation several angle of the flat sword of described positioning head both sides.
2. SELF DRILLING SCREWS as claimed in claim 1 is characterized in that, the formed end of a side that described brill afterbody and flat sword section are extended is provided with a side edge.
3. SELF DRILLING SCREWS as claimed in claim 1 is characterized in that, the formed angle of flat sword section of described positioning head both sides is between 160 degree～180 degree.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101467439A CN101929496A (en) | 2009-06-24 | 2009-06-24 | Self drilling screw with more than two angles |
| PCT/CN2010/000363 WO2010148626A1 (en) | 2009-06-24 | 2010-03-24 | Self-drilling screw with two or more angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101467439A CN101929496A (en) | 2009-06-24 | 2009-06-24 | Self drilling screw with more than two angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101929496A true CN101929496A (en) | 2010-12-29 |
Family
ID=43368851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101467439A Pending CN101929496A (en) | 2009-06-24 | 2009-06-24 | Self drilling screw with more than two angles |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101929496A (en) |
| WO (1) | WO2010148626A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727112A (en) * | 2013-11-04 | 2014-04-16 | 庆达科技股份有限公司 | Self drilling screw |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3848596B1 (en) * | 2020-01-13 | 2023-10-18 | Taiwan Shan Yin International Co., Ltd. | Self-drilling screw |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3578762A (en) * | 1969-04-14 | 1971-05-18 | Armco Steel Corp | Self-drilling, reaming and tapping screw |
| JP2556982Y2 (en) * | 1991-04-06 | 1997-12-08 | 株式会社ヤマヒロ | Self-drilling screw with double cutting edge |
| CN1077670A (en) * | 1992-04-17 | 1993-10-27 | 张孝敬 | Drill bit with cutting tip |
| JP4421732B2 (en) * | 2000-03-30 | 2010-02-24 | 若井産業株式会社 | Drill screw |
| CN2487478Y (en) * | 2000-09-12 | 2002-04-24 | 杨洪生 | Swallow drill |
| US20040018069A1 (en) * | 2002-07-29 | 2004-01-29 | Hsiao Kang Shan Screw Co., Ltd | Self-drilling/self-tapping screw |
| DE102006026176A1 (en) * | 2006-05-29 | 2007-12-06 | Adolf Würth GmbH & Co. KG | Self-drilling screw |
| DE102006034585A1 (en) * | 2006-07-26 | 2008-01-31 | Ejot Gmbh & Co. Kg | Hole and thread forming screw |
| CN201372995Y (en) * | 2009-03-19 | 2009-12-30 | 如翌企业股份有限公司 | Drill tail screw structure |
| TWM370664U (en) * | 2009-06-24 | 2009-12-11 | Sun Through Ind Co Ltd | Self-drilling screws with more than two angles |
-
2009
- 2009-06-24 CN CN2009101467439A patent/CN101929496A/en active Pending
-
2010
- 2010-03-24 WO PCT/CN2010/000363 patent/WO2010148626A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727112A (en) * | 2013-11-04 | 2014-04-16 | 庆达科技股份有限公司 | Self drilling screw |
| CN103727112B (en) * | 2013-11-04 | 2016-08-24 | 庆达科技股份有限公司 | Self Drilling Screws |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010148626A1 (en) | 2010-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101229 |