CN101082352A - Screw, punching implement and screwdriver head - Google Patents
Screw, punching implement and screwdriver head Download PDFInfo
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- CN101082352A CN101082352A CN 200610083454 CN200610083454A CN101082352A CN 101082352 A CN101082352 A CN 101082352A CN 200610083454 CN200610083454 CN 200610083454 CN 200610083454 A CN200610083454 A CN 200610083454A CN 101082352 A CN101082352 A CN 101082352A
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- screw
- head
- groove
- engagement groove
- fan
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Abstract
A kind of screw includes nail bar and head. Thread set on the nail bar which connects to the head with binding groove. The groove contains several sector grooves and a four-angle groove. The sector grooves are isometric surround setting on binding groove. The four-angle groove form in the central part of sector groove. Every sector of sector groove includes at least a first arc, two second arc and two liners. Two heads of second arc connects to the first arc and liner. The sector groove of binding groove been guide to fillet, avoid forming sector cusp of sector groove. Moreover, disclose a punch to produce the head of screw in this invention and a screw driver used to drive the head of screw.
Description
Technical field
The present invention relates to a kind of screw, towards tool and head of screwdriver, relate more particularly to a kind of screw, the fan groove of its engagement groove is radiused the angle.
Background technique
At present, existing screw or screw, no matter be that tack, square toes, taper head or ring-type are first-class, its engagement groove is nothing more than being yi word pattern A, cross B, four jiaos of cross combination type C, four jiaos of type D or rice font E, shown in Fig. 1 to 5.Yet, with the manual tool that above-mentioned various engagement groove A, B, C, D, E match, its head of screwdriver in conjunction with sword be restricted to have only yi word pattern, cross, four jiaos of cross combination types, four jiaos of types or rice font.Therefore, the applicability of head of screwdriver is restricted, and can't provide the head of screwdriver of existing other pattern to plug, and can't produce the screw that big bolt closes torsion.
Moreover, the combining sword and must reach combination fast of the engagement groove of this screw and this head of screwdriver, and both in conjunction with after, the degree of waving of this head of screwdriver is limited can not be excessive.If waving of this head of screwdriver spent greatly, then when starting building the big torsion of tool moment rotation generation, may damage to this engagement groove or in conjunction with sword.In other words, not good if this engagement groove combines the bonding tightness of sword with this, then therefore the degree of waving of this head of screwdriver will make this break away from conjunction with sword and this engagement groove with excessive.
In order to solve the above-mentioned big problem of spending of waving, this case claimant has won the Taiwan patent certificate No. 155863 on February 11st, 2000, and title is " screw, mould and a head of screwdriver ".This patent discloses a kind of at screw, the head of screw etc., the mould-forming die cavity, and the blade of head of screwdriver, the improvement of making, wherein this patent is that screw 10 includes head 12 and nail bar 20 at least, nail bar 20 is distributed with screw thread 30, and the engagement groove 14 that it is characterized in that this head 12 is provided with four symmetrically arranged fan grooves 40, and the central position at each fan groove 40 is formed with four chamfered grooves 41 respectively, and then be provided with little side cut 42 at the position that four chamfered grooves 41 engage with fan groove 40, shown in Fig. 6 a and 6b, so the screw engagement groove of this patent can be with existing cross, four jiaos of types, the rice font, the fan-shaped head of screwdriver in conjunction with sword that has of four jiaos of cross combination types and this patent plugs combination.Preferable if desired bolt closes and produces big rotary torsion, then can cooperate to have fan-shaped head of screwdriver use in conjunction with sword.Perhaps, if derive as the manufacturing shaping die of the head engagement groove of screw, wherein mould is opposite with aforementioned screw head, is formed with symmetrical scalloped cutting edge, to reach practical purpose.Yet the fan groove 40 of this engagement groove 14 is formed with wedge angle (shown in the dotted line among Fig. 6 a), how not to avoid forming wedge angle and this patent discloses the fan groove of this engagement groove.
In addition, U. S. Patent the 6th, 453, No. 781, title is " system (SystemFor Holding And Tightening Screws) that is used for maintenance and locking screw ", the engagement groove 54 that also discloses a kind of screw terminal 52 is provided with four equidistantly around the fan groove 60 and the lug 62 that are provided with, and is formed with groove 61 at the central position of this fan groove 60 and lug 62, as shown in Figure 7.This patent also can solve the above-mentioned big problem of spending of waving.Yet the fan groove 60 of this engagement groove 54 also is formed with wedge angle (shown in the dotted line among Fig. 7), and how the fan groove that this patent does not disclose this engagement groove avoids forming wedge angle.
Therefore, a kind of screw need be provided,, aforesaid shortcoming can be solved towards tool and head of screwdriver.
Summary of the invention
The present invention's purpose is to provide a kind of screw, and the fan groove or the vee gutter of its engagement groove are radiused the angle, therefore can avoid forming wedge angle.
For reaching above-mentioned purpose, the invention provides a kind of screw, comprise nail bar and head.This nail bar is provided with screw thread.This head is connected on this nail bar, and comprises engagement groove, and this engagement groove comprises a plurality of fan grooves and one or four chamfered grooves.These a plurality of fan grooves are equidistantly around being arranged on this engagement groove.This four chamfered groove is formed on the central position of this fan groove.Fan-shaped at least one first camber line, two second camber lines and two straight lines of comprising of each fan groove.The two ends of this second camber line are connected respectively to this first camber line and this straight line, so the fan groove of this engagement groove is radiused the angle, to avoid forming the fan-shaped wedge angle of this fan groove.In another alternate embodiments, this fan groove can be replaced by vee gutter.
It is a kind of towards tool that the present invention provides in addition, and it is in order to make the head of screw of the present invention.Should comprise blade towards tool, it is corresponding to the engagement groove of this screw head, and comprises that a plurality of scalloped cutting edges and one or four jiaos of swords correspond respectively to the fan groove and four chamfered grooves of this engagement groove.
The present invention provides a kind of head of screwdriver in addition, and it is in order to drive the head of screw of the present invention.This head of screwdriver comprises in conjunction with sword, and it is corresponding to the engagement groove of this screw head, and comprises that a plurality of scalloped cutting edges and one or four jiaos of swords correspond respectively to the fan groove and four chamfered grooves of this engagement groove.
Because the fan groove or the vee gutter of engagement groove of the present invention are radiused the angle, that is the fan groove of this engagement groove or vee gutter do not have wedge angle, therefore can make the easier moulding of engagement groove of this screw head, and make this towards the tool ILS.In addition, the combining sword and can reach combination fast of the engagement groove of this screw and this head of screwdriver, and both in conjunction with after, the degree of waving of this head of screwdriver can be not excessive, can solve the big problem of spending of waving.
In order to allow above and other objects of the present invention, feature and the advantage can be more obvious, embodiment of the present invention cited below particularly, and conjunction with figs. be described in detail below.
Description of drawings
Fig. 1 is the plan view of first kind of screw of prior art.
Fig. 2 is the plan view of second kind of screw of prior art.
Fig. 3 is the plan view of the third screw of prior art.
Fig. 4 is the plan view of the 4th kind of screw of prior art.
Fig. 5 is the plan view of the 5th kind of screw of prior art.
Fig. 6 a is the plan view of the 6th kind of screw of prior art.
Fig. 6 b is the sectional drawing along the hatching 6b-6b intercepting of screw shown in Fig. 6 a.
Fig. 7 is the plan view of the 7th kind of screw of prior art.
Fig. 8 a is the plan view of the screw of one embodiment of the present invention.
Fig. 8 b is the sectional drawing along the hatching 8b-8b intercepting of screw shown in Fig. 8 a.
Fig. 9 is the plan view of the screw of a kind of alternate embodiments of the present invention.
Figure 10 is the planimetric map of fan groove of the screw of one embodiment of the present invention, and the β of angle shown in it can be 90 degree.
Figure 11 is the planimetric map of fan groove of the screw of one embodiment of the present invention, and the β of angle shown in it can be acute angle.
Figure 12 is the planimetric map of the fan groove of the screw of another alternate embodiments of the present invention, and the β of angle shown in it can be 90 degree.
Figure 13 is the planimetric map of the fan groove of the screw of another alternate embodiments of the present invention, and the β of angle shown in it can be acute angle.
Figure 14 is the planimetric map of the vee gutter of the screw of another alternate embodiments of the present invention, and the β of angle shown in it can be 90 degree.
Figure 15 is the planimetric map of the vee gutter of the screw of another alternate embodiments of the present invention, and the β of angle shown in it can be acute angle.
Figure 16 is the real partial side view that dashes tool in a kind of side of enforcement of the present invention.
Figure 17 a is the partial side view of the head of screwdriver of one embodiment of the present invention.
Figure 17 b is the sectional drawing along the hatching 17b-17b intercepting of the head of screwdriver of Figure 17 a.
[figure number explanation]
Four jiaos of types of the cross C of A yi word pattern B four jiaos of cross combination types D
E rice font α angle β angle 10 screws
12 heads, 14 engagement grooves, 20 nail bars, 30 screw threads
40 fan grooves, 41 4 chamfered grooves, 42 side cuts, 52 screw terminals
54 engagement grooves, 60 fan grooves, 61 grooves, 62 lugs
100 screws, 102 center lines, 112 heads, 114 engagement grooves
120 nail bars, 130 screw threads, 140 fan grooves, 140 ' fan groove
140 " vee gutter 141 4 chamfered grooves 142 are cut edge
143 central positions, 144 cell walls, 145 cell walls
152 first camber lines, 152 ' first camber line 152 " first straight line
154 straight lines 154 " second straight line, 156 second camber lines
156 " camber line 200 is towards tool 210 blades 212 scalloped cutting edges
214 4 jiaos of sword 300 head of screwdriver 310 are in conjunction with sword
314 4 jiaos of swords of 312 scalloped cutting edges
Embodiment
With reference to figure 8a and 8b, wherein show the screw 100 of one embodiment of the present invention.This screw 100 comprises head 1 12 and nail bar 120.This nail bar 120 is provided with screw thread 130.This head 112 is connected on this nail bar 120, and comprises that engagement groove 114, this engagement groove are provided with four fan grooves 140 and one or four chamfered grooves 141.These four fan grooves 140 equidistantly around and be symmetricly set on this engagement groove 114, and this four chamfered groove 141 is formed at the central position 143 of these four fan grooves 140.Any persond having ordinary knowledge in the technical field of the present invention as can be known, this engagement groove is not limited to have only four fan grooves, comprises a plurality of fan grooves and can spread to, such as two, three, five, six fan grooves or the like.The angle α of the cell wall 144 of this fan groove 140 and the center line 102 of this screw 100 can be approximately between 0 and 45 degree, shown in Fig. 8 b.Moreover the angle of the cell wall 145 of this four chamfered groove 141 and the center line 102 of this screw 100 can be between 0 and 5 degree.With reference to figure 9, in a kind of alternate embodiments, this four chamfered groove 141 can be provided with little side cut 142 with the junction point of this fan groove 140.
With reference to Figure 10, in the present embodiment, fan-shaped one first camber line 152, two straight lines 154 and two second camber lines 156 of comprising of each fan groove 140.The two ends of these two second camber lines 156 are connected respectively to this first camber line 152 and this two straight line 154, thereby this fan groove 140 is radiused the angle, to avoid forming the fan-shaped wedge angle of this fan groove 140, shown in the dotted line among Fig. 8 a.Preferably, between this two straight line 154 formed angle β be not more than 90 the degree, that is angle β can be 90 the degree (as shown in figure 10), or angle β less than 90 the degree (such as acute angle, as shown in figure 11).With reference to Figure 10, the curvature of this first camber line 152 can be less than the curvature of this second camber line 156 again.Specifically, this first camber line 152 has first radius, and this second camber line 156 has second radius, and this first radius is greater than this second radius.
With reference to Figure 12, in another alternate embodiments, fan-shaped two first camber lines 152 ', two straight lines 154 and two second camber lines 156 of comprising of each fan groove 140 '.This two first camber line 152 ' interconnects, and the two ends of these two second camber lines 156 are connected respectively to this two first camber line 152 ' and this two straight line 154, thereby this fan groove 140 ' is radiused the angle, and is to avoid forming the fan-shaped wedge angle of this fan groove 140 ', similar shown in the dotted line among Fig. 8 a.Preferably, formed angle β is not more than 90 degree between this two straight line 154, that is angle β can be 90 degree (as shown in figure 12, it is similar to right angle ginkgo leaf lobe), or angle β is less than 90 degree (such as acute angle, as shown in figure 13, it is similar to acute angle ginkgo leaf lobe).
With reference to Figure 14, in another alternate embodiments, this fan groove can be by vee gutter 140 " replace, that is vee gutter 140 " triangle comprise one first straight line 152 ", two second straight lines 154 " and two camber lines 156 ".This two camber line 156 " two ends be connected respectively to this first straight line 152 " with this two second straight line 154 ", thereby this vee gutter 140 " be radiused the angle, to avoid forming this vee gutter 140 " the triangle wedge angle, similar shown in the dotted line among Fig. 8 a.Preferably, this two second straight line 154 " between formed angle β be not more than 90 degree, that is angle β can be 90 degree (as shown in figure 14), or angle β is less than 90 degree (such as acute angle, as shown in figure 15).
With reference to Figure 16, what it showed one embodiment of the present invention dashes tool 200.Be somebody's turn to do towards the head 112 of tool 200 in order to make screw 100 of the present invention, and comprise blade 210, this blade is corresponding to the engagement groove 114 of the head 112 of this screw 100.This blade 210 comprises four scalloped cutting edges 212 (or triangle sword) and one or four jiaos of swords 214, corresponds respectively to the fan groove 140 (or vee gutter 140 ") and four chamfered grooves 141 of this engagement groove 114.Any persond having ordinary knowledge in the technical field of the present invention as can be known, this blade 210 also can be spreaded to and be comprised a plurality of scalloped cutting edges (or triangle sword).
With reference to figure 17a and 17b, it shows the head of screwdriver 300 of one embodiment of the present invention.The head 112 of this head of screwdriver 300 in order to drive screw 100 of the present invention, and comprise that in conjunction with sword 310 this is in conjunction with the engagement groove 114 of sword corresponding to the head 112 of this screw 100.This comprises four scalloped cutting edges 312 (or triangle sword) and one or four jiaos of swords 314 in conjunction with sword 310, corresponds respectively to the fan groove 140 (or vee gutter 140 ") and four chamfered grooves 141 of this engagement groove 114.Any persond having ordinary knowledge in the technical field of the present invention as can be known, this also can be spreaded in conjunction with sword 310 and comprise a plurality of scalloped cutting edges (or triangle sword).
Because the fan groove or the vee gutter of engagement groove of the present invention do not have wedge angle, can make the easier moulding of engagement groove of the head of this screw, and make this towards the tool ILS.And, the combining sword and can reach combination fast of the engagement groove of this screw and this head of screwdriver, and both are better in conjunction with the back bonding tightness, can solve the big problem of spending of waving.In addition, screw engagement groove of the present invention can be existing cross, four jiaos of types, rice font, four jiaos of cross combination types or of the present inventionly has fan-shaped or triangle and plug combination in conjunction with the head of screwdriver of sword.Preferable if desired bolt closes and produces big rotary torsion, then can cooperate of the present inventionly to have fan-shaped or triangle and use in conjunction with the head of screwdriver of sword.
Though the present invention is disclosed by aforementioned embodiments, it is not that any persond having ordinary knowledge in the technical field of the present invention without departing from the spirit and scope of the present invention, can make various changes and modification in order to qualification the present invention.Therefore protection scope of the present invention with the appended claim scope the person of being defined be as the criterion.
Claims (19)
1. screw comprises:
The nail bar is provided with screw thread; And
Head is connected on this nail bar, and comprises engagement groove, and this engagement groove comprises:
A plurality of fan grooves are equidistantly around being arranged on the engagement groove; And
One or four chamfered grooves are formed at the central position of described fan groove, and it is characterized in that: fan-shaped at least one first camber line, two straight lines and two second camber lines of comprising of each fan groove, the two ends of described second camber line are connected respectively to described first camber line and described straight line.
2. screw as claimed in claim 1 is characterized in that: the fan-shaped of described fan groove comprises two first camber lines, and described two first camber lines interconnect.
3. screw as claimed in claim 1 is characterized in that: the curvature of described first camber line is less than the curvature of described second camber line.
4. screw as claimed in claim 2 is characterized in that: described two first camber lines have first radius, and described two second camber lines have second radius, and described first radius is greater than described second radius.
5. screw as claimed in claim 1 is characterized in that: described engagement groove is provided with four symmetrically arranged fan grooves.
6. screw as claimed in claim 1 is characterized in that: formed angle is not more than 90 degree between described two straight lines.
7. screw as claimed in claim 1 is characterized in that: the junction point of described four chamfered grooves and described fan groove is provided with little side cut.
8. screw as claimed in claim 1 is characterized in that: the angle of the cell wall of described fan groove and the center line of described screw is between 0 and 45 degree.
9. screw as claimed in claim 1 is characterized in that: the angle of the cell wall of described four chamfered grooves and the center line of described screw is between 0 and 5 degree.
10. one kind towards tool, in order to make the head of screw as claimed in claim 1, it is characterized in that, should comprise towards tool:
Blade corresponding to the engagement groove of the head of described screw, and comprises that a plurality of scalloped cutting edges and one or four jiaos of swords correspond respectively to the fan groove and four chamfered grooves of described engagement groove.
11. a head of screwdriver in order to drive the head of screw as claimed in claim 1, is characterized in that, this head of screwdriver comprises:
In conjunction with sword,, and comprise that a plurality of scalloped cutting edges and one or four jiaos of swords correspond respectively to the fan groove and four chamfered grooves of described engagement groove corresponding to the engagement groove of the head of described screw.
12. a screw comprises:
The nail bar is provided with screw thread; And
Head is connected on this nail bar, and comprises engagement groove, and this engagement groove comprises:
A plurality of vee gutters are equidistantly around being arranged on the engagement groove; And
One or four chamfered grooves are formed at the central position of described vee gutter, and it is characterized in that: the triangle of each vee gutter comprises one first straight line, two second straight lines and two camber lines, and the two ends of described camber line are connected respectively to described first straight line and described second straight line.
13. screw as claimed in claim 12 is characterized in that: described engagement groove is provided with four symmetrically arranged vee gutters.
14. screw as claimed in claim 12 is characterized in that: the junction point of described four chamfered grooves and described vee gutter is provided with little side cut.
15. screw as claimed in claim 12 is characterized in that: formed angle is not more than 90 degree between described two straight lines.
16. screw as claimed in claim 12 is characterized in that: the angle of the cell wall of described vee gutter and the center line of described screw is between 0 and 45 degree.
17. screw as claimed in claim 12 is characterized in that: the angle of the cell wall of described four chamfered grooves and the center line of described screw is between 0 and 5 degree.
18. one kind towards tool, in order to make the head of screw as claimed in claim 12, it is characterized in that, should comprise towards tool:
Blade corresponding to the engagement groove of the head of described screw, and comprises that a plurality of triangle swords and one or four jiaos of swords correspond respectively to the vee gutter and four chamfered grooves of described engagement groove.
19. a head of screwdriver in order to drive the head of screw as claimed in claim 12, is characterized in that, this head of screwdriver comprises:
In conjunction with sword,, and comprise that a plurality of triangle swords and one or four jiaos of swords correspond respectively to the vee gutter and four chamfered grooves of described engagement groove corresponding to the engagement groove of the head of described screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610083454 CN101082352A (en) | 2006-05-31 | 2006-05-31 | Screw, punching implement and screwdriver head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610083454 CN101082352A (en) | 2006-05-31 | 2006-05-31 | Screw, punching implement and screwdriver head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101082352A true CN101082352A (en) | 2007-12-05 |
Family
ID=38912079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610083454 Pending CN101082352A (en) | 2006-05-31 | 2006-05-31 | Screw, punching implement and screwdriver head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101082352A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486196A (en) * | 2010-12-06 | 2012-06-06 | 鸿富锦精密工业（深圳）有限公司 | Fastening piece as well as driving piece matched with fastening piece and punch for forming fastening piece |
| CN108980175A (en) * | 2017-05-31 | 2018-12-11 | 世享工业股份有限公司 | Screw and corresponding punching tool |
-
2006
- 2006-05-31 CN CN 200610083454 patent/CN101082352A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486196A (en) * | 2010-12-06 | 2012-06-06 | 鸿富锦精密工业（深圳）有限公司 | Fastening piece as well as driving piece matched with fastening piece and punch for forming fastening piece |
| CN108980175A (en) * | 2017-05-31 | 2018-12-11 | 世享工业股份有限公司 | Screw and corresponding punching tool |
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