CN101605634B

CN101605634B - Slotted screw

Info

Publication number: CN101605634B
Application number: CN2007800493897A
Authority: CN
Inventors: H·佐勒
Original assignee: ZED DESIGN COMM TECHNOLOGIES
Current assignee: ZED DESIGN COMM TECHNOLOGIES
Priority date: 2006-11-15
Filing date: 2007-11-13
Publication date: 2012-11-07
Anticipated expiration: 2027-11-13
Also published as: CN101605634A; CH696938A5

Abstract

A slotted screw comprises slotted surfaces (9) on the screw head, wherein the slotted surfaces are vertical or substantially vertical, and the slotted surfaces are disposed parallel or substantially parallel to each other. The slotted screw further comprises slotted supporting surfaces (10) inclined toward the outside at an angle within a range of 0 DEG to 20 DEG , and a semicircular recessed centering surface (12) which is centrally positioned by means of rounded tip surfaces (11) and has a lowest point (13). The slotted screw is configured such that a tip to be received for manual screwdrivers/bits and for screwdriving devices can safeguard the centering of the screwdriver/bit tips in the slotted screw during insertion, at the beginning of the screw-driving operation and during the latter by means of the screw pressure surfaces (1), which are vertical or substantially vertical and which are disposed parallel or substantially parallel to each other in pairs, by means of the corresponding slotted supporting surfaces (3), and by means of a semicircular and elevated centering surface (5) which is centrally positioned by means of rounded corner surfaces (4) and has a highest point (6). The slotted screw may be configured as a diametrically slotted screw, or as a three-figure radial slotted screw.

Description

Slotted screw

[technical field]

The present invention relates to subtend slotted screw (Diametralschlitzschraube) and 3R slotted screw (triple radially slotted screws, dreizaehlige Radiaschlitzschrauben) and their screwdriver/drive head (Schraubendreherspitzen-/Bits).

[background technology]

Make H type (Phillips) crossed grooves screw and Z type (Pozidriv) crossed grooves screw and part specific type crossed grooves screw that use, that have extra subtend groove owing to introduce; Initial standard slotted screw is because the shortcoming aspect the centering of the screw-driven operation that guarantees main machinery, has been worth step-down.

This conclusion is readily appreciated that, because in the screw-driven operating period of carrying out now, the application of most of this type crossed grooves is all owing to having guaranteed to have simplified method of work for transmitting the centering that conventional moment of torsion carries out.

Alternately, by same method produced according to DIN 7962, have " just/negative crossed grooves screw " according to the complete subtend groove of DIN 84, so especially increased the moment of torsion transmission in the screw connection, so that apply peak load.During the full-automatic screw driving operations, the centering of crossed grooves screw operation provides useful properties and has simplified their application.Since these and other, use more and more by " crossed grooves screw ".

Yet when carrying out basic, the accurate investigation of crossed grooves screw characteristic, the shortcoming that can recognize them also is a no less important, wherein:

-only through applying the centering pressure that overcomes ejection power (withdrawing from), the normal crossing grooved screw of can easily feeling relieved, and this realizes that through necessary " extruding force " said " extruding force " must increase equally pari passu when moment of torsion increases.

-using than high pulling torque and existing under the hypodynamic situation of extruding, exist screwdriver/drive head to be extruded the risk of crossed grooves.

-this shortcoming especially is present under the situation of H type (Philips) crossed grooves screw, and wherein all walls and the rib of crossed grooves tilt in the degree of depth, and therefore owing to this geometrical arrangements, these elements produce ejection power.

-under the situation of newer Z type (Pozidriv) crossed grooves, four are tightened up wall is vertical, and has only end to tilt; Therefore " ejection power " (withdrawing from) is reduced to minimum.

-because this lifting geometrical arrangements (surface of crossed grooves); Reduced their size with respect to the diameter of associated screw; Wherein in the application of crossed grooves physical dimension; The pressure proof that applies moment of torsion bigger than in the oblique slotted screw, and these pressure can only distribute through the intensification of rooved face.

-such result is that under having than the situation of soft crossed grooves screw or during moment of torsion excess load under the situation of standard crossed grooves screw, the geometrical arrangements of groove is destroyed, and during be spirally connected operating period and release are spirally connected, also is like this.

-the crossed grooves screw manually be spirally connected or when using corresponding mechanical screw driven tool (screw-driven brill); Corresponding extruding force is necessary; According to moment of torsion needs and needs user's operating position for this reason, this extruding force can let very difficulty of work that the user carries out to a certain extent.

Therefore the object of the present invention is to provide the subtend slotted screw and the screwdriver/drive head of the shortcoming of avoiding above-mentioned crossed grooves screw.On head of screw, has flute wall surfaces by slotted screw of the present invention; Wherein said flute wall surfaces is vertical or roughly vertical on the helical axis of vertical location; And said flute wall surfaces is parallel or each other almost parallel arrange; Wherein said slotted screw also has with the outward-dipping fluting primary surface of angle in 0 ° to 20 ° scope; And the intensification centering surface that has semi-circular cross-section and deepest point; Said intensification centering surface is positioned at the center of fluting primary surface through the nose circle surface; Wherein said slotted screw designs in such a way: the top to be received that is used for manual screwdriver/drive head and is used for screw driving device is through its screw pressure surface and through corresponding groove installation surface and have semi-circular cross-section and the centering surface of the convexity of peak can be guaranteed when the screw-driven operation beginning and felt relieved at said slotted screw in said screwdriver/drive head top when inserting in screw-driven operating period; Wherein, Said screw pressure surface on the vertical position rotating axle of instrument be vertically roughly vertical and parallel or each other almost parallel arrange that the centering surface of said convexity is positioned at the center of groove installation surface through radiused surface.

[summary of the invention]

The present invention be suitable for good grounds DIN standard and iso standard can utilize the subtend slotted screw again, according to the specific embodiments of nonmetric screw thread, the corresponding driving device head insert that is intended to the screwdriver of together using with handle and is used for electronic or pneumatic screw driving device.The invention enables the existing standard of the subtend slotted screw that makes up the level trough base plane that has extra centring means to become possibility, making the power transmission surface that has outward-dipping groove base plane become in addition becomes possibility greatly.

Therefore two closely-related embodiment are described:

-embodiment " A " has the subtend slotted screw of additional centring means, and has enlarged the power transmission surface that has outward-dipping groove datum plane to greatest extent;

-embodiment " B " has the subtend slotted screw of additional centring means, and has often enlarged the power transmission surface that has the level trough datum plane.

Because the geometrical arrangements of subtend slotted screw, principle of the present invention are based on moment of torsion and transmit the increase of power and the centering that guarantees screwdriver/drive head top, and a non-existent specific character in the present retrievable conventional subtend slotted screw.

Therefore the principle below having used, these principles provide the maximum, force transmission of moment of torsion and guarantee the centering among the present invention, specifically:

-the complete vertical or parallel contact surface that is used for the moment of torsion transmission is present in the diameter of corresponding subtend groove, no longer produces ejection power (withdrawing from); Thereby whole components of moment of torsion can begin from the center of rotating shaft to transmit.

-to be used for screwdriver/drive head top is centered in the corresponding adaptive necessary power in torsion transmission surface be minimum, and be not transmitted into ratio with moment of torsion, and do not depend on the moment of torsion transmission; Different with the situation of crossed grooves screw, only need center that this little extruding force guarantees screwdriver/drive head top in the corresponding centering shape of oblique slot.

-through or do not simplify centering screw driver/drive head top through the centering surface of the hemispherical on the head of screw (15), wherein the semicircle bourrelet on screwdriver/drive head top is fixed through total steering angle of Rotate 180 ° and through slight extruding force before getting into the subtend groove.

-to compare with existing 100% conventional subtend slotted screw, the unit that has the vertical or parallel semicircle centering surface of same vertical or parallel flute wall surfaces makes whole expansion of torque transmission surface surpass 150%.Therefore, when applying high pulling torque, it can be not very favorable on the single pressure surface of additional pressure elements destruction that their power is distributed to.

The increase of-Li distribution surface in the oblique slot outer end helps this improved moment of torsion to distribute.This point is particularly useful for embodiment A.

-because its proportionate relationship; The geometrical arrangements principle of centering surface applications makes it in the subtend slotted countersunk flat head screw, use equally in the semicircle of oblique slot central authorities; The taper seat of slotted countersunk flat head screw has 45 ° exterior angle: from the vertical section of integral body, this screw-type basic representation to the restriction of centering chamfer embodiment in said head of screw.Screwdriver/drive head top correspondingly is suitable for the situation of these sunk screws.

-therefore the imagination of the overall applicability through this consideration and slotted screw type has defined the present invention; Wherein head of screw formal proof does not influence the structure of semicircle centering surface and oblique slot end face; Therefore under the situation that does not have artificial and mechanical damage, it can be used with all kinds.

-through this description of subtend slotted screw embodiment A, the adaptive of slotted screw can realize with simple mode, because can merge semicircle centering surface and inclination subtend groove end face by means of thermoforming at the screw production period.

-on the basis of said notion, although under not having centering function and not having situation that the moment of torsion of possibility increases, these novel subtend slotted screws can be used in the interleaved plan through existing conventional screwdriver/drive head equally.

The advantage of relevant category-A type and category-B type subtend slotted screw:

-to compare with similarly existing slotted screw standard, these novel slotted screw types, their embodiment distortion and the screwdriver/drive head top of corresponding production can realize that moment of torsion increases above 50%.

-because the inclined outer surface of the associated end on the hemispherical centering surface (15) on the head of screw, semicircle centering surface, subtend groove and screwdriver/drive head top in the screw, before the screw-driven operation owing to lower extruding force has guaranteed centering.

-opposite with ejection power under the crossed grooves screw situation, " withdrawing from power " (Comeout-Kraefte) no longer is present in the present invention, and existing contact surface is especially turning to place, groove two ends, allows the optimization of moment of torsion to distribute.

-opposite with ejection power under the crossed grooves screw situation, the centering extruding force among the present invention is minimum, it does not depend on the moment of torsion of increase, and is not proportional with it yet.

-the present invention can be used for all renewals that have similar subtend slotted screw now; Comprise their countersunk head distortion and according to the product of DIN standard, iso standard and similar standard; And the specific embodiments that provides according to nonmetric standard, and can be used for medical application.

Thereby-the present invention can be used for all to be had plush copper, round end, countersunk head, socket cap, has the subtend slotted screw of outer square toes and outer-hexagonal head, and is used for as wood screw, adhesive plate screw, dried wall screw, band wing self-drilling screw, sheet-metal screw, boring screw, thread-cutting screw, equipment screw, the screw type of plastic screw and the screw type of corresponding specific embodiments.

-because subtend slotted screw of the present invention, the extensive use of standard centring sleeve no longer is essential; Cost, time and the assembling advantage of these screw type have been produced like this.

-because the existing hemispherical centering surface (15) on the head of screw of these subtend slotted screws, when being screwed into and during unloading process, can be with the less tool positioned of carrying out of striving for through manual screwdriver and industrial robot.

-in order further to guarantee the centering operation; Each demifacet with respect to the parallel flute wall surfaces of the longitudinal axis of subtend groove (9) makes up with ° angle, 0 ° of angle to 20; Preferably making up with 3 ° of angles, is that feel relieved for ease surface (5) and waiting receives the insertion of the vertical screw pressure surface (1) on the screwdriver/drive head top in the subtend groove like this.Therefore the complete parallel contact of rooved face (9) of the screw pressure surface (1) of this adaptive assurance screwdriver head and subtend slotted screw, this is one makes steering force farthest be delivered to the key element of present whole contact surface.

-be used to produce the required technical fee of this subtend slotted screw invention match with application and the advantage---especially bigger transmission of steering force---that realize through this simple proposal.

-owing to guarantee centering and increased moment of torsion, the objective of the invention is to revalue and utilize subtend slotted screw type and their screwdriver/drive head top again.

Because this screw invention and be used for the screwdriver of this screw and the production on drive head top can be accepted; The slotted screw type of upgrading is compared more important with the crossed grooves screw and is employed more: this is to the desirable result of these invention products, is just beginning one's study and establishes the new standard whether contact possibly be accepted as the present invention the subtend slotted screw.

Except above-mentioned subtend slotted screw, the present invention also can be applied to novel triple radially slotted screws (3R is slotted screw radially).In this case; Three vertical centering radial slots are disposed in and replace the single subtend groove that can be felt relieved on can head of screw; Wherein each independent radial slot just in time is equivalent to the half the of subtend groove, and these three radial slots begin to be connected to each other along the vertical center on semicircle centering surface from their deepest point.

Therefore said three independent radial slots are positioned on the head of screw with every hexagonal angle from the center of screw axis, thereby constitute triple radial slots unit.

Because the 3R geometrical arrangements of slotted screw radially, principle of the present invention are based on moment of torsion and transmit the increase of power and the assurance on centering screw driver/drive head top, this is a non-existent characteristic in the conventional slotted screw of a kind of existing (so far).

Because 3R screwdriver head is installed on the corresponding base plane of radial slot; Guaranteed the stability that centering and power are transmitted; The hemispherical centering that wherein as in the subtend slotted screw, has existence is surperficial, has simplified the manual and mechanical centering of drive head in the said radial slot like this.

The relevant 3R of category-A type is the advantage of slotted screw radially

This 3R radially slotted screw type is based on the adaptation of head of screw to 3R screwdriver head; This 3R radially slotted screw forms (seeing 1-A page or leaf Fig. 4) by the subtend grooved screw drive head of the category-A type of 3 half formulas combination, and it has outward-dipping basal plane (3) and guarantees that through termination endface (16) pressure at head of screw place and centering are stable.

Compare with existing crossed grooves screw; These novel 3R radially slotted screw type, their the screwdriver/drive head top of embodiment distortion and corresponding production can realize the increase of moment of torsion about 75%; This relates to applying of power, and it must be applied to the external force delivery areas in the head of screw.

Because the centering surface of the hemispherical on the head of screw (15) and the semicircle centering surface (12), radial slot and the screwdriver/drive head top (5 that in screw, separate into two halves; 6; The oblique base (10 of respective ends 1); 17),, when beginning, before the screw-driven operation and before all one's effort is transmitted, guaranteeing centering through less extruding force.

Opposite with the ejection power under the crossed grooves screw situation, " withdrawing from power " no longer is present in the present invention, and existing contact surface especially at the contact surface of three ends of 3R radial slot, allows the moment of torsion optimization to distribute to the maximum gauge of head of screw.

Opposite with the ejection power under the crossed grooves screw situation, the centering extruding force among the present invention is minimum, and not proportional with the moment of torsion that increases.

The present invention can be used to replace the crossed grooves screw and be used to upgrade existing sunk screw according to DIN standard, iso standard and other nonmetric standards, fillister head screw, cheese head screw, machine screw with oval countersunk fillister head and similarly adapt to product.

Therefore, these novel 3R radially slotted screw type are furnished with the standard 3R screwdriver head that is used for identical screw sizes, and it makes their simplification and multifunctional application in said renewal screw type become possibility.

Because this screw invention and be used for its screwdriver and the production on drive head top is acceptable; Than crossed grooves screw and similar products; The 3R that upgrades radially slotted screw type becomes more important and is used more; This relates to centering and the use that guarantees maximum head of screw diameter, reduces the purpose that applies steering force thereby be embodied as.

Because 3R of the present invention is slotted screw radially, the extensive use of standard centring sleeve no longer is essential; Cost, time and the assembling advantage of these screw type have been produced like this.

Since on these 3R existing hemispherical centering surface (15) on the head of screw of slotted screw radially, when getting into and during unloading process when being spirally connected, can be with the less tool positioned of striving for through manual screwdriver and industrial robot.

Because the head of screw of the full radius of use and they are divided into 3 * 120 ° of parts, this power distribution (especially under the situation of sunk screw) is adapted to acceptable maximum capacity, and such purpose is that protection transmission surface is not destroyed when of short duration excess load.

In order further to guarantee the centering operation; Make up with ° angle, 0 ° of angle to 20 with respect to three and half of the parallel flute wall surfaces of the longitudinal axis of 3R groove (9); Preferably making up with 3 ° of angles, is that feel relieved for ease surface (5) and waiting receives the insertion of the vertical screw pressure surface (1) on the screwdriver/drive head top in the 3R groove like this.Therefore, the screw pressure surface (1) of this adaptive assurance screwdriver head and the radially complete parallel contact of the rooved face of slotted screw (9) of 3R, this is a key element that makes steering force can at utmost be delivered to the whole contact surface of existence.(see the description of 9-A page or leaf: 3R is the details/principle of the centering of slotted screw radially.)

The combination of other advantageous embodiment and inventive features is to draw on the whole from following detailed description and claim of the present invention.

[description of drawings]

Be used to explain that the accompanying drawing of exemplary embodiment illustrates:

The 1-A page or leaf

Explain embodiments of the invention A through following accompanying drawing:

The cross section A-A of the subtend slotted screw that Fig. 1 does not feel relieved surperficial (5) with cone screw head bottom, the outward-dipping basal plane (10) that has the subtend groove, semicircle and hemispherical is felt relieved surperficial (15).

Fig. 2 has the horizontal view of the said screw top surface (8) on (or not with) hemispherical centering surface (15), inclined plane (10) and semicircle centering surface (12).

The depths of Fig. 3 subtend rooved face (9,10) and (12) and screwdriver/drive head top with the longitudinal axis of subtend rooved face at an angle of 90 in the feel relieved section B-B of lip-deep installation of hemispherical.

Fig. 4 is similar to the cross section A-A of Fig. 1, but is used to have the subtend slotted countersunk flat head screw of cone screw head bottom, and through the angle surface (16) of 45 ° of inclinations screwdriver/drive head top (1) is adapted for the countersunk head shape.

Fig. 5 has the horizontal view of (not with) hemispherical centering surface (15), inclined plane (10) and the said screw top surface (8) of hemispherical centering surperficial (12).

Fig. 6 have cone screw head bottom the subtend slotted countersunk flat head screw subtend rooved face (9,10) and (12) depths and screwdriver/drive head top with the longitudinal axis of subtend rooved face at an angle of 90 in the feel relieved section B-B of lip-deep installation of hemispherical.

The 2-B page or leaf

Explain embodiments of the invention B through following accompanying drawing:

Fig. 7 is not with the cross section A-A of the subtend slotted screw on cone screw head bottom, the horizontal basal plane (10) that has the subtend groove, semicircle centering surface (5) and (or not with) hemispherical centering surface (15).

Fig. 8 has the horizontal view of the said screw top surface (8) on (or not with) hemispherical centering surface (15), horizontal plane (10) and semicircle centering surface (12).

The depths of Fig. 9 subtend rooved face (9,10) and (12) and screwdriver/drive head top with the longitudinal axis of subtend rooved face at an angle of 90 in the feel relieved section B-B of lip-deep installation of hemispherical.

Figure 10 has the details of screwdriver/drive head top (1) at the adaptive angle (16) of 45 ° of inclinations, as have with not with cone screw head bottom situation under the variation used.

Figure 11 is similar to the cross section A-A of Fig. 1, but is used to have the subtend slotted countersunk flat head screw of cone screw head bottom, and through the adaptive angle surface (16) of 45 ° of inclinations screwdriver/drive head top (1) is adapted for the countersunk head shape.

Figure 12 has the horizontal view of (not with) hemispherical centering surface (15), inclined plane (10) and the said screw top surface (8) of hemispherical centering surperficial (12).

Figure 13 have cone screw head bottom the subtend slotted countersunk flat head screw subtend rooved face (10) and (12) depths and screwdriver/drive head top with the longitudinal axis of subtend rooved face at an angle of 90 in the feel relieved section B-B of lip-deep installation of hemispherical.

The 3-A/B page or leaf

Explaination embodiments of the invention A and B have 0 ° of angle 3 ° width, vertical or parallel subtend screw slots surfaces (9) to 20 ° of scopes.

Figure 14/16 are similar to the cross section A-A of explained hereabove.

Figure 15/17 have the horizontal view of the said screw top surface (8) on (or not being with) hemispherical centering surface (15), interior rooved face (9,10) and semicircle centering surface (12).Through widening the angle of the interior rooved face (9) parallel with respect to the longitudinal axis of subtend fluting, behind Rotate 180 ° steering locking angle (promptly+/-90 °), the insertion on screwdriver/drive head top is by pre-determined bit.(see the 10-A/B page or leaf for details.)

The 4-A page or leaf

Explaination embodiments of the invention A, wherein, the screw slots of fillister head screw adapt to and are used for the screwdriver head that structure is a sunk screw, its have under fillister head screw corresponding to outer surface (19) and 45 ° the angle surface (16) of tilting.

The cross section A-A of Figure 18 subtend slotted cheese head screw, this subtend slotted cheese head screw have the angle surface (19) of the outward-dipping basal plane (10) of subtend groove, 45 ° of inclinations, the semicircle centering surface (5) of screwdriver head and the hemispherical centering surface (15) of head of screw.

The horizontal view of the said screw top surface of Figure 19 (8), this screw top surface have hemispherical centering surface (15) and outward-dipping groove basal plane (10), 45 ° angle surface (19) and the semicircle centering surperficial (12) of tilting.

The depths of Figure 20 subtend rooved face (9,10) and (12) and screwdriver/drive head top with the longitudinal axis of subtend rooved face at an angle of 90 in the section B-B of the installation on hemispherical centering surface.

Figure 21-23 uses the equivalence explaination and the details of reference corresponding to conduct about Fig. 4, Fig. 5 and Fig. 6 of 1-A page or leaf.Therefore; They are as the basis of the screwdriver head of sunk screw in the embodiment A (1-A page or leaf); As the multifunctional bolt drive head top of adaptive fillister head screw and button-headed screw, it makes this screwdriver head can be used in the screw type of said same size (comprising machine screw with oval countersunk fillister head).

The 5-A page or leaf:

Explaination embodiments of the invention A, wherein, the screw slots of button-headed screw adapt to and are used for the screwdriver head that structure is a sunk screw, its have under button-headed screw corresponding to outer surface (19) and 45 ° the angle surface (16) of tilting.

The cross section A-A of Figure 24 subtend fluting button-headed screw, this subtend fluting button-headed screw has the angle surface of the outward-dipping basal plane (10) of subtend groove, 45 ° of inclinations, the semicircle centering surface (5) of screwdriver head and the hemispherical centering surface (15) of head of screw.

The horizontal view of the said screw top surface of Figure 25 (8), this screw top surface have hemispherical centering surface (15) and outward-dipping groove basal plane (10), 45 ° angle surface (19) and the semicircle centering surperficial (12) of tilting.

The depths of Figure 26 subtend rooved face (9,10) and (12) and screwdriver/drive head top with the longitudinal axis of subtend rooved face at an angle of 90 in the feel relieved section B-B of lip-deep installation of hemispherical.

The 6-A page or leaf: centering 3R is slotted countersunk flat head screw radially:

1. 3R screwdriver crown end is installed on the hemispherical centering surface (15).

Figure 27 is used to be installed in the front view of the 3R screwdriver head on three hemisphericals centering surface elements (15) of head of screw.

Figure 28 illustrates the horizontal profile A-A of the 3R screwdriver head that is used to be positioned on the head of screw.

Figure 29 has top view and 3R screwdriver head (Figure 28) location of head of screw of the 3R sunk screw of three screw head surfaces (8) unit.See the 9-A page or leaf for details.

The front view of Figure 30 3R screwdriver crown end (Figure 27) before it is installed in the 3R sunk screw.

Figure 31 has the front view of the 3R sunk screw that is supported with 3R screwdriver head.

2. go up rotation 3R screwdriver 60 ° on hemispherical centering surface (15) and fall into 3R radially in the slotted screw surface (9).

Figure 32 illustrates the identical 3R screwdriver head (Figure 27) that turns clockwise after 60 °.

Figure 33 has rotated the horizontal profile A-A of the 3R screwdriver head after 60 °.

Figure 34 has the top view of head of screw of the 3R sunk screw of three screw head surfaces (8) unit, and screw head surfaces (8) makes 3R screwdriver head after 60 ° of rotations, fall in the 3R radial screw rooved face (9).See the 9-A page or leaf for details.

Figure 35 illustrates the identical 3R screwdriver head (Figure 27) that turns clockwise after 60 °.

Figure 36 locatees and is reduced in the front view of the 3R screwdriver head in the 3R radial screw rooved face (9).

7-A page or leaf: the centering 3R cylinder screw of radially slotting:

Figure 37 is similar to the view of the 3R screwdriver head of 6-A page or leaf Figure 27.

Figure 38 illustrates the horizontal profile A-A of the 3R screwdriver head that is similar to 6-A page or leaf Figure 28.

Radially slot top view and the location of 3R screwdriver head (Figure 38) of head of screw of cylinder screw of the 3R that Figure 39 has three screw head surfaces (8) unit.See the 9-A page or leaf.

Figure 40 is similar to the view of the 3R screwdriver crown end of 6-A page or leaf Figure 27.

Figure 41 has radially the slot front view of cylinder screw of the 3R that is supported 3R screwdriver head.

Figure 42 illustrates the identical 3R screwdriver head (Figure 27) that turns clockwise after 60 °.

Figure 43 has rotated the horizontal profile A-A of the 3R screwdriver head after 60 °.

Radially the slot top view of head of screw of cylinder screw of the 3R that Figure 44 has three screw head surfaces (8) unit, screw head surfaces make 3R screwdriver head after 60 ° of rotations, fall in the 3R radial screw rooved face (9).See the 9-A page or leaf.

Figure 45 illustrates the identical 3R screwdriver head (Figure 42) that turns clockwise after 60 °.

Figure 46 locatees and is reduced in the front view of the 3R screwdriver head in the 3R radial screw rooved face (9).

8-A page or leaf: the centering 3R button-headed screw of radially slotting:

1. 3R screwdriver head is installed in hemispherical centering surface (15).

Figure 47 is similar to the view of the 3R screwdriver head of 6-A page or leaf Figure 27.

Figure 48 illustrates the horizontal profile A-A of the 3R screwdriver head that is similar to 6-A page or leaf Figure 28.

Radially the slot top view and 3R screwdriver head (Figure 48) location of head of screw of button-headed screw of the 3R that Figure 49 has three screw head surfaces (8) unit.See the 9-A page or leaf for details.

Figure 50 3R screwdriver head (Figure 47) is installed in the 3R front view before the button-headed screw of radially slotting at it.

Radially the slot front view of button-headed screw of the 3R that Figure 51 has a 3R screwdriver head that is supported.

Figure 52 illustrates the identical 3R screwdriver head (Figure 47) that turns clockwise after 60 °.

Figure 53 has rotated the horizontal profile A-A of the 3R screwdriver head after 60 °.

Radially the slot top view of head of screw of button-headed screw of the 3R that Figure 54 has three screw head surfaces (8) unit, screw head surfaces (8) make 3R screwdriver head after 60 ° of rotations, fall into 3R radial screw rooved face (9).See the 9-A page or leaf for details.

Figure 55 is falling into radially the slot front view of the 3R screwdriver head (Figure 52) before the button-headed screw of 3R.

Figure 56 locatees and is reduced in the front view of the 3R screwdriver head in the 3R radial screw rooved face (9).

9-A page or leaf: 3R is the centering details/principle of slotted screw radially:

Figure 57 illustrates the 3R radial slot surface that 3R screwdriver head inserts head of screw, and has the gap that is produced by two a ° of angles.

Figure 58 is illustrated in the radially installation that directly contacts of slotted screw surperficial (9) of a screwdriver grooved surface (1) and 3R behind a ° of angle of rotation of 3R screwdriver head.

10-A page or leaf: the centering details/principle of subtend slotted screw:

Figure 59 illustrates the subtend rooved face that subtend slotted screw drive head inserts head of screw, and has the gap that is produced by two a ° of angles.

Figure 60 is illustrated in the screwdriver head and has rotated a screwdriver grooved surface and the surperficial installation that directly contacts of subtend slotted screw behind a ° of angle.

[specific embodiment]

The 1-A page or leaf:

These basic accompanying drawings comprise described in the invention have with not with the subtend slotted screw type of the screw embodiment A of cone screw head bottom.

Fig. 1 shows respective screws driver/drive head top, wherein limits vertical or parallel transmission surface (1) inclination installation surface (3), semicircle centering point (5), expansion fillet part (4) and the darkest inner point (6) of feeling relieved.(2) represent the darkest exterior angle on screwdriver/drive head top, its outer end (14) with the subtend groove is corresponding.Centering is established through the subtend groove direction (shown in the arrow) of inserting screw with the full attachment screw driver/drive head top that drives.

The cross section A-A of screw is shown according to Fig. 1; Wherein mark screw top surface (8), its have (or not with) hemispherical centering surface (15), internal groove side wall surface (9), subtend groove inclination base plane (10), semicircle centering surface (12), with and the point (13) of feeling relieved the most deeply.On semicircle centering surface (12); In order to reduce a pressure (Punktspannung); Through two the circle portions (11) on the peak of relief angle (Ansatzwinkel) extension of said semicircle centering surface (12) to the inclination base plane (10) of subtend groove is provided, (14) illustrate the deepest point of obliquity.

Fig. 2 illustrates the top view of the subtend slotted screw of not being with cone screw head bottom; Wherein mark the inner surface portion (11 of screw top surface (8), vertical or parallel cell wall (9), subtend groove; 12,13) and the part that is presented as (or not having) hemispheric centering surface (15).

Fig. 3 relates to section B-B, and it has illustrated screwdriver/drive head top, and said screwdriver/drive head top is installed in hemispherical centering surface element (15) (or not having hemispherical centering surface element) at an angle of 90 with the longitudinal axis with the subtend rooved face.Have the hemispherical centering surface (15) of (or not existing) through these, screwdriver/drive head top is at 180 ° of steering locking angles (promptly+/-90 °) back pre-determined bit entering subtend groove.

The cross section A-A of Fig. 4 is similar to Fig. 1, is furnished with cone screw head bottom but difference is subtend slotted screw type.

Except the adaptive angle surface (16) of screwdriver/drive head top (1) is used for adaptive outside (14) oblique base (10), all component names are similarly corresponding to Fig. 1.

The same with Fig. 2; Fig. 5 illustrates the similar top view of the subtend slotted screw that has cone screw head bottom; Wherein mark the inner surface portion (11,12,13) of screw top surface (8), vertical or parallel cell wall (9), subtend groove and be presented as (not embodying) hemispheric centering surface element (15).

The same with Fig. 3; Fig. 6 illustrates section B-B; It has illustrated screwdriver/drive head top, and when being installed in hemispherical centering surface element (15) last time when not installing (or), said screwdriver/drive head top is to locate (or not being positioned) with the longitudinal axis of subtend rooved face at an angle of 90.

Through these hemisphericals centering surfaces (15), screwdriver/drive head top is at 180 ° of steering locking angles (promptly+/-90 °) the predetermined heart entering in back subtend groove.

The 2-B page or leaf:

These basic accompanying drawings comprise that the present invention has and the subtend slotted screw type of not describing with the screw Embodiment B of cone screw head bottom.

Fig. 7 shows respective screws driver/drive head top, wherein limits vertical or parallel transmission surface (1) horizontal installation surface (3), semicircle centering point (5), expansion fillet part (4) and the darkest inner point (6) of feeling relieved.(2) represent the darkest exterior angle on screwdriver/drive head top, its outer end (14) with the subtend groove is corresponding.

Centering is established through the subtend groove direction (shown in the arrow) of inserting screw with the full attachment screw driver/drive head top that drives.

The cross section A-A of screw is shown according to Fig. 7; Wherein mark screw top surface (8), its have (or not with) hemispherical centering surface (15), internal groove side wall surface (9), subtend groove inclination base plane (10), semicircle centering surface (12), with and the point (13) of feeling relieved the most deeply.On semicircle centering surface (12), in order to reduce a pressure, the extension of said semicircle centering surface (12) to the inclination base plane (10) of subtend groove is provided through two the circle portions (11) on the peak of relief angle, (14) illustrate the deepest point that is in tilted layout.

Fig. 8 illustrates the top view of the subtend slotted screw of not being with cone screw head bottom, wherein marks the inner surface portion (11,12,13) and hemispherical (or non-hemispherical) the centering surface (15) of screw top surface (8), vertical or parallel cell wall (9), subtend groove.

Fig. 9 relates to section B-B, and it has illustrated screwdriver/drive head top, and said screwdriver/drive head top is installed in hemispherical centering surface element (15) at an angle of 90 with the longitudinal axis with the subtend rooved face.Through these hemisphericals centering surfaces (15), screwdriver/drive head top is at 180 ° of steering locking angles (promptly+/-90 °) back pre-determined bit entering subtend groove.

The cross section A-A of Figure 11 is similar to Fig. 7, is furnished with cone screw head bottom but difference is subtend slotted screw type.Except the adaptive angle surface (16) of screwdriver/drive head top (1) is used for adaptive outside (14) oblique base (10), all component names are similarly corresponding to Fig. 7.

The same with Fig. 8; Figure 12 illustrates the similar top view of the subtend slotted screw that has cone screw head bottom; Wherein mark the inner surface portion (11,12,13) of screw top surface (8), vertical or parallel cell wall (9), subtend groove and be presented as (or not embody) hemispheric centering surperficial (15).

The same with Fig. 9, Figure 13 illustrates section B-B, and it has illustrated screwdriver/drive head top, and said screwdriver/drive head top is to install (or not installing) at hemispherical centering surface element (15) at an angle of 90 with the longitudinal axis of subtend rooved face.Through (or not through) these hemisphericals centering surfaces (15), screwdriver/drive head top is at 180 ° of steering locking angles (promptly+/-90 °) back pre-determined bit entering subtend groove.

Figure 10 illustrates screwdriver/drive head top (1) at the adaptive angle (16) that has 45 ° of inclinations, as have with situation not with the screw of cone screw head bottom under the variant that uses.

The 3-A/B page or leaf:

Explaination embodiments of the invention A and B have the angle with 3 ° in 0 ° to the 20 ° scope vertical subtend screw slots surfaces of widening (9).

Figure 14/16-is similar to the cross section A-A of explained hereabove.

The said horizontal view that has the screw top surface (8) on hemispherical centering surface (15), interior rooved face (10) and semicircle centering surface (12) of Figure 15/17-.Through widening the angle of the inner surface (9) that is parallel to the subtend groove longitudinal axis, behind Rotate 180 ° steering locking angle (promptly+/-90 °), the screwdriver of entering/drive head top is positioned.(see centering of 10-A/B page or leaf and power transmission for details.)

The 4-A page or leaf

These basic accompanying drawings comprise that the present invention has and the subtend slotted screw type of not describing with the screw embodiment A of cone screw head bottom.

Figure 18 shows respective screws driver/drive head top, wherein limits vertical or parallel transmission surface (1) inclination installation surface (3), semicircle centering point (5), expansion fillet part (4) and the darkest inner point (6) of feeling relieved.(2) represent the darkest exterior angle on screwdriver/drive head top, its outer end (14) with the subtend groove is corresponding.Centering is to be determined through the direction (shown in the arrow) of inserting screw subtend groove with the full attachment screw driver/drive head top that drives.

The cross section A-A of screw is shown according to Figure 18; Wherein mark screw top surface (8), its have hemispherical centering surface (15), internal groove side wall surface (9), subtend groove inclination base plane (10), have outer corner faces (19) and semicircle centering surperficial (12) and the point (13) of feeling relieved the most deeply thereof of 45 ° of the inclinations of bosom (17) and flash (18).On semicircle centering surface (12), in order to reduce a pressure, the extension of said semicircle centering surface (12) to the inclination base plane (10) of subtend groove is provided through two the circle portions (11) on the peak of relief angle, (17) illustrate the deepest point that is in tilted layout.

Figure 19 illustrates the top view of the subtend slotted screw of not being with cone screw head bottom, the part that wherein marks the inner surface portion (11,12,13) of screw top surface (8), vertical or parallel cell wall (9), subtend groove and be presented as hemispheric centering surface (15).

Figure 20 relates to section B-B, and it has illustrated screwdriver/drive head top, and said screwdriver/drive head top is installed in hemispherical centering surface element (15) (or not having hemispherical centering surface element) at an angle of 90 with the longitudinal axis with the subtend rooved face.Hemispherical centering surface (15) through these existence, screwdriver/drive head top is at 180 ° of steering locking angles (promptly+/-90 °) back pre-determined bit entering subtend groove.

Figure 21, Figure 22, Figure 23 are corresponding to using with reference to identical explaination and details as Fig. 4, Fig. 5 and Fig. 6 about the 1-A page or leaf.Therefore; They are as the basis of the screwdriver head of sunk screw in the embodiment A (1-A page or leaf); As the multifunctional bolt drive head top of adaptive fillister head screw and button-headed screw and sunk screw, it makes this screwdriver head can be used in the screw type of said same size.

The 5-A page or leaf:

These basic accompanying drawings comprise the subtend slotted screw type that the present invention does not describe with the cheese head screw embodiment A of cone screw head bottom.

Figure 24 shows respective screws driver/drive head top, wherein limits vertical or parallel transmission surface (1) horizontal installation surface (3), semicircle centering point (5), expansion fillet part (4) and the darkest inner point (6) of feeling relieved.(2) represent the darkest exterior angle on screwdriver/drive head top, its outer end (14) with the subtend groove is corresponding.Centering is to establish through explaining the direction (shown in the arrow) of inserting screw subtend groove with the full attachment screw driver/drive head top that drives.

The cross section A-A of screw is shown according to Figure 24; Wherein mark screw top surface (8), its have hemispherical centering surface (15), internal groove side wall surface (9), subtend groove inclination base plane (10), have tilt 45 ° outer corner faces (19) and semicircle centering surperficial (12) and its point (13) of feeling relieved the most deeply of bosom (17) and flash (18).On semicircle centering surface (12), in order to reduce a pressure, the extension of said semicircle centering surface (12) to the inclination base plane (10) of subtend groove is provided through two the circle portions (11) on the peak of relief angle, (17) illustrate the deepest point that is in tilted layout.

Figure 25 illustrates the top view of the subtend slotted screw of not being with cone screw head bottom; Wherein mark the inner surface portion (11 of semicircular screw top surface (8), vertical or parallel cell wall (9), subtend groove; 12,13) and the part that is presented as hemispheric centering surface (15).

Figure 26 relates to section B-B, and it has illustrated screwdriver/drive head top, and said screwdriver/drive head top is installed in hemispherical centering surface element (15) at an angle of 90 with the longitudinal axis with the subtend rooved face.Hemispherical centering surface (15) through these existence, screwdriver/drive head top is at 180 ° of steering locking angles (promptly+/-90 °) back pre-determined bit entering subtend groove.

1. 3R screwdriver crown end is installed in hemispherical centering surface (15).

Figure 27 illustrates vertical centering screw driver/drive head top; It is combined by three half subtend grooves, and its single vertical or parallel force is transmitted surface (1) and connected to form a unit with vertical mode equally with 120 ° of horizontal orientation angles from deepest point (6) beginning on semicircle centering surface (5).Therefore, these single identical drivers wings (Bitfluegel) have the darkest outside (2) on screwdriver/drive head top, 45 ° outer corner faces (16) and outward-dipping and be connected to the installation surface (3) on semicircle centering surface (5) by expansion fillet part (4).

Figure 28 illustrates the horizontal profile A-A on screwdriver/drive head top, and when being installed in 3R radially on the head of screw of slotted countersunk flat head screw the time, the angle that is used to feel relieved has been confirmed in the use on this screwdriver/drive head top.

Figure 29 illustrates the vertical top view of head of screw; Wherein be shown in dotted line the horizontal profile of above-mentioned 3R screwdriver head (Figure 28); Because these three unitary part (15) on hemispherical centering surface, screw head surfaces (8) goes up and is guaranteed to make it can symmetry be centered in separately.See the 9-A page or leaf for details.

Figure 30 is that 3R screwdriver head (Figure 27) is installed in these three independent hemispherical centering surface (15) identical front views before at it, and 3R screwdriver head is incorporated in the vertical/axial centre on these three independent screw head surfaces (8).

Figure 31 is the front view of 3R screwdriver head, and this 3R screwdriver head is supported on 3R radially on the slotted countersunk flat head screw head by hemispherical centering surface (15).Subsequently said 3R screwdriver head is being turned clockwise after 60 ° the visible water jacket (9) that outer corner faces (16) is placed into is vertical or parallel contact surface, still open.

2. go up rotation 3R screwdriver 60 ° on three hemisphericals centering surfaces (15) and fall into radially slotted screw surface (9) of 3R.

Figure 32-illustrate is according to the 3R screwdriver head after 60 ° of turning clockwise of Figure 27.

Figure 33 illustrates the horizontal profile A-A on screwdriver/drive head top, is installed in 3R when turning clockwise 60 ° radially on the slotted countersunk flat head screw time, and this screwdriver/use on drive head top has confirmed to be used for the angle of its reduction.

Figure 34 illustrates the vertical top view of head of screw; This head of screw have with Figure 29 in identical definite home position; And because these three unitary part (15) on hemispherical centering surface are with parallel or vertical slot is surperficial (9), it can be lowered 3R screwdriver head.Therefore, through its in outward-dipping 13 ° surface (10), outside (14), largest extension fillet part (11), semicircle centering surface (12) confirmed that with the installation on axial bolt center (13) the direct centering of 3R screwdriver head contacts.See the 9-A page or leaf for details.

Figure 35 is turning clockwise after 60 °, is being installed in the identical front view of these three independent hemisphericals centering surface (15) 3R screwdriver heads (Figure 32) before at it.

Figure 36 is that 3R screwdriver/drive head top reduces into the front view in the corresponding screw slots.Therefore, because its direct installation on inclined outer surface (10), expansion fillet part (11), head of screw center (13) and semicircle fixed centering surface (12) has guaranteed the centering of 3R screwdriver head.

7-A page or leaf: the centering 3R cylinder screw of radially slotting:

Figure 37 illustrates vertical centering screw driver/drive head top; It is combined by three and half subtend grooves, and its independent vertical or parallel force is transmitted surface (1) and connected to form a unit with vertical mode equally with 120 ° of horizontal orientation angles from deepest point (6) beginning on semicircle centering surface (5).Therefore these single identical drivers wings have the darkest outside (2) on screwdriver/drive head top, 45 ° outer corner faces (16) and outward-dipping and be connected to the installation surface (3) on semicircle centering surface (5) by expansion fillet part (4).

Figure 38 illustrates the horizontal profile A-A on screwdriver/drive head top, and when being installed in 3R radially on the head of screw on the slotted countersunk flat head screw time, the angle that is used to feel relieved has been confirmed in the use on this screwdriver/drive head top.

Figure 39 illustrates the vertical top view of head of screw; Wherein be shown in dotted line the horizontal profile of above-mentioned 3R screwdriver head (Figure 38); Because these three unitary part (15) on hemispherical centering surface, screw head surfaces (8) goes up and is guaranteed to make it can symmetry be centered in separately.See the 9-A page or leaf for details.

Figure 40 is that 3R screwdriver head (Figure 37) is installed in these three independent hemispherical centering surface (15) identical front views before at it, and 3R screwdriver head is incorporated in the vertical/axial centre on these three independent screw head surfaces (8).

Figure 41 is the front view of 3R screwdriver head, and this 3R screwdriver head is supported on 3R radially on the slotted countersunk flat head screw head by hemispherical centering surface (15).Subsequently said 3R screwdriver head is being turned clockwise after 60 °; 45 ° the outer corner faces (16) of tilting put into still open visible water jacket (9) on the vertical or parallel contact surface, wherein their receptions to 3R screwdriver brilliance surface (16) are confirmed in the outside (18) on the corresponding angles surfaces (19) of 45 ° of the inclinations of head of screw.

2. go up rotation 3R screwdriver 60 ° on these three hemisphericals centering surfaces (15) and fall into radially slotted screw surface (9) of 3R.

Figure 42-illustrate is according to the screwdriver/drive head top after 60 ° of turning clockwise of Figure 37.

Figure 43 illustrates the horizontal profile A-A on screwdriver/drive head top, and when being installed in 3R when turning clockwise 60 ° and radially slotting on the cylinder screw, this screwdriver/use on drive head top has confirmed to be used for the angle of its reduction.

Figure 44 illustrates the vertical top view of head of screw; This head of screw have with Figure 39 in identical definite home position; And because these three unitary part (15) on hemispherical centering surface and parallel or vertical slot is surperficial (9), it can be lowered 3R screwdriver head.Therefore, through its in outward-dipping 13 ° surface (10), outside (18), 45 ° angle surface (19), largest extension fillet part (17), the semicircle centering surface (12) of tilting confirmed that with the installation on axial bolt center (13) the direct centering of 3R screwdriver head contacts.See the 9-A page or leaf for details.

Figure 45 has turned clockwise after 60 °, has been installed in the identical front view of the 3R screwdriver head (Figure 42) of these three independent hemisphericals centering surfaces (15) before going up at it.

Figure 46 is that 3R screwdriver/drive head top reduces the front view into corresponding screw slots.Therefore, because its direct installation on inclined outer surface (10), expansion fillet part (11), head of screw center (13) and semicircle fixed centering surface (12) has guaranteed the centering of 3R screwdriver head.

8-A page or leaf: the centering 3R button-headed screw of radially slotting:

1. 3R screwdriver head is installed on the hemispherical centering surface (15).

Figure 47 illustrates vertical centering screw driver/drive head top; It is combined by three and half subtend grooves, and its independent vertical or parallel force is transmitted surface (1) and connected to form a unit with 120 ° of horizontal orientation angles from deepest point (6) beginning on semicircle centering surface (5) equally vertically.Therefore, these single identical drivers wings have the darkest outside (2) on screwdriver/drive head top, 45 ° outer corner faces (16) and outward-dipping and be connected to the installation surface (3) on semicircle centering surface (5) by expansion fillet part (4).

Figure 48 illustrates the horizontal profile A-A on screwdriver/drive head top, and when being installed in 3R and radially slotting on the head of screw of button-headed screw, the angle that is used to feel relieved has been confirmed in the use on this screwdriver/drive head top.

Figure 49 illustrates the vertical top view of head of screw; Wherein be shown in dotted line the horizontal profile of above-mentioned 3R screwdriver head (Figure 48); Because these three unitary part (15) on hemispherical centering surface, screw head surfaces (8) goes up and is guaranteed to make it can symmetry be centered in separately.See the 9-A page or leaf for details.

Figure 50 is that 3R screwdriver head (Figure 47) is installed in these three independent hemispherical centering surface (15) identical front views before at it, and 3R screwdriver head is incorporated in the vertical/axial centre on these three independent screw head surfaces (8).

Figure 51 is the front view of 3R screwdriver head, and this 3R screwdriver head is supported on semicircle 3R radially on the slotted screw head by hemispherical centering surface (15).Subsequently said 3R screwdriver head is being turned clockwise after 60 °; 45 ° the outer corner faces (16) of tilting is placed into visible water jacket (9) vertical or parallel contact surface, that still open, and wherein their receptions to 3R screwdriver brilliance surface (16) are confirmed in the outside (18) on the corresponding angles surfaces (19) of 45 ° of the inclinations of head of screw.

Figure 52 illustrates the screwdriver/drive head top after 60 ° of turning clockwise according to Figure 47.

Figure 53 illustrates the horizontal profile A-A on screwdriver/drive head top, and when being installed in 3R when turning clockwise 60 ° and radially slotting on the button-headed screw, this screwdriver/use on drive head top has confirmed to be used for the angle of its reduction.

Figure 54 illustrates the vertical top view of head of screw; This head of screw have with Figure 49 in identical definite home position; And because these three unitary part (15) on hemispherical centering surface are with parallel or vertical slot is surperficial (9), it can be lowered 3R screwdriver head.Therefore, through its in outward-dipping 13 ° surface (10), outside (18), 45 ° angle surface (19), largest extension fillet part (17), the semicircle centering surface (12) of tilting confirmed that with the installation on axial bolt center (13) the direct centering of 3R screwdriver head contacts.See the 9-A page or leaf for details.

Figure 55 has turned clockwise after 60 °, has been installed in the identical front view of the 3R screwdriver head (Figure 52) of these three independent hemisphericals centering surfaces (15) before going up at it.

Figure 56 is that 3R screwdriver/drive head top reduces the front view into corresponding screw slots.Therefore; Because its angle surface 45 ° of inclinations (19), abutting surface side (17), outward-dipping surface (10), expansion fillet part (11), head of screw center (13) and semicircle are decided the direct installation on the centering surface (12), have guaranteed the centering of 3R screwdriver head.

Figure 57-gap (F) is shown, it radially produces through two a ° of angles between the slotted screw surface (9) at screwdriver head surface (1) and 3R.Because these three half spherical centering surface elements (15); Guaranteed that 3R screwdriver head falls into slotted screw surface (9); Wherein each in two a ° of angles is in 0 to 5 ° scope; Preferred 3 ° (scope is 0 to 20 ° in the example of subtend slotted screw) produces the gap that is used for this centering operation.Therefore, mark width, and marked the maximum well width of head of screw with n2 at the 3R radial screw actuator head between these two contact surfaces (1) with n1.The purpose of this centering operation is to let the width (n1) of 3R radial screw actuator head reduce the maximum well width (n2) (20) of ground corresponding to head of screw exactly or with very slight size, guarantees whole transmission of parallel force whereby.

Figure 58 is illustrated in and radially directly contacts mounting screw drive head grooved surface (1) in slotted screw surface (9) with 3R after 3R screwdriver head has rotated a ° of angle.Thereby steering force is passed to whole rooved face (1), (9).

Claims

1. slotted screw; It has flute wall surfaces (9) on head of screw; Wherein said flute wall surfaces is vertical or roughly vertical on the helical axis of vertical location; And said flute wall surfaces is parallel or each other almost parallel arrange; Wherein said slotted screw also has with the outward-dipping fluting primary surface (10) of the angle in 0 ° to 20 ° scope; And the intensification centering surface (12) that has semi-circular cross-section and deepest point (13); Said intensification centering surface (12) is positioned at the center of fluting primary surface (10) through nose circle surface (11); Wherein said slotted screw designs in such a way: the top to be received that is used for manual screwdriver/drive head and is used for screw driving device is through its screw pressure surface (1) and through corresponding groove installation surface (3) and have semi-circular cross-section and the centering of the convexity of peak (6) surface (5) can be guaranteed when the screw-driven operation beginning and felt relieved at said slotted screw in said screwdriver/drive head top when inserting in screw-driven operating period; Wherein, said screw pressure surface (1) on the vertical position rotating axle of instrument be vertically roughly vertical and parallel or each other almost parallel arrange that the centering surface (5) of said convexity is positioned at the center of groove installation surface (3) through radiused surface (4).

2. slotted screw according to claim 1; It is characterized in that; Said slotted screw is constructed to have the subtend slotted screw of subtend groove; Wherein said slotted screw has two with the outward-dipping fluting primary surface (10) of the angle in 0 ° to 20 ° scope, and said intensification centering surface (12) is positioned at the center of fluting primary surface (10) by two nose circle surfaces (11).

3. slotted screw according to claim 1; It is characterized in that; Said slotted screw is constructed to triple radially slotted screws; And on said head of screw, have three vertical half two-sided radial slot wall surfaces that connect; Said flute wall surfaces all staggers with respect to the angle of vertical centration axis with 120 ° each other, and wherein said slotted screw has three fluting primary surfaces (10) that the angle in 0 ° to 20 ° scope is outward-dipping, and said intensification centering surface (12) is positioned at the center of fluting primary surface (10) through three nose circle surfaces (11).

4. according to each described slotted screw among the claim 1-3, it is characterized in that said flute wall surfaces (9) is vertical and parallel on the helical axis of vertical location.

5. slotted screw according to claim 1 is characterized in that, said head of screw has another hemispheric centering surface (15) on screw head surfaces (8).

6. slotted screw according to claim 1 is characterized in that, said fluting primary surface (10) is outer and downward-sloping with 13 ° of angles.

7. slotted screw according to claim 1 is characterized in that, said fluting primary surface (10) is a level on the helical axis of vertical location.

8. slotted screw according to claim 1 is characterized in that said slotted screw has the conical head bottom.

9. slotted screw according to claim 2; It is characterized in that; Each demifacet of flute wall surfaces (9) that is parallel to the longitudinal axis of subtend groove has 0 ° to 20 ° angle, uses so that the centering surface (5) of the convexity on screwdriver to be received/drive head top and vertical screw pressure surface (1) are inserted in the said subtend groove.

10. slotted screw according to claim 3; It is characterized in that; Each demifacet of flute wall surfaces (9) that is parallel to the longitudinal axis of radial slot has 0 ° to 20 ° angle, uses so that the centering surface (5) of the convexity on screwdriver to be received/drive head top and vertical screw pressure surface (1) are inserted in the said radial slot.

11. according to claim 2 or 5 described slotted screws; It is characterized in that; Said slotted screw designs in such a way: can realize the centering on another hemispheric centering surface (15) of centering surface (5) in said screw head surfaces (8) of convexity on screwdriver/drive head top to be received at 180 ° of steering angles, and not be installed on the screw head surfaces (8) at the darkest exterior angle (2) before getting into said flute wall surfaces (9).

12. slotted screw according to claim 1 is characterized in that, said slotted screw is by ferrous metal, non-ferrous metal or plastics manufacturing.

13. slotted screw according to claim 1; It is characterized in that; Said slotted screw is manufactured to the magnetic cell that is used to receive ferrous metal screwdriver/drive head top, or is used to the centering auxiliary member on ferrous metal screwdriver/drive head top to be received.

14. slotted screw according to claim 1 is characterized in that, said slotted screw is designed to fillister head screw, taper sunk screw, button-headed screw or machine screw with oval countersunk fillister head, and has 45 ° the outer corner faces (19) of being inclined upwardly.

15. be designed to manual screwdriver or be used for the instrument of the drive head insert of screw driving device; Be used for together using with slotted screw according to claim 1; It is characterized in that; The top of said instrument has screw pressure surface (1) vertical on the vertical position rotating axle of instrument; Wherein said screw pressure surface (1) is vertical or roughly vertical and said screw pressure surface (1) is parallel or each other almost parallel arrange in pairs; The top of wherein said instrument further has with the outward-dipping groove installation surface (3) of the angle in 0 ° to 20 ° scope and has semi-circular cross-section and the centering of the convexity of peak (6) surface (5); The centering of said convexity surface (5) is positioned at the center of groove installation surface (3) through radiused surface (4), make guarantee when screw-driven operation beginning and when screw-driven operating period insertion with the said screwdriver/centering of drive head top in slotted screw to be screwed in.

16. instrument according to claim 15; It is characterized in that; This instrument is confirmed as with the subtend slotted screw and is used together, and has two screw pressure surfaces parallel or almost parallel each other (1), two are positioned at the center of groove installation surface (3) with the outward-dipping groove installation surface (3) of the angle in 0 ° to 20 ° scope and by two radiused surface (4) the centering surface (5) of the convexity that has semi-circular cross-section.

17. instrument according to claim 15; It is characterized in that; This instrument is confirmed as with triple radially slotted screws and is used together; And have three pairs of screw pressure surfaces parallel or almost parallel each other (1); Wherein each screw pressure surface is to stagger with hexagonal angle with respect to the vertical centration axis on the vertical position rotating axle of said instrument each other, and this instrument further has three with the outward-dipping groove installation surface (3) of the angle in 0 ° to 20 ° scope, and the centering of said convexity surface (5) is positioned at the center of groove installation surface (3) through three radiused surface (4).

18., it is characterized in that said two screw pressure surfaces (1) are vertical and parallel according to each described instrument among the claim 15-17 on the vertical position rotating axle of said instrument.

19. instrument according to claim 15; It is characterized in that; The exterior angle on said top (2) has inclined surface (16), and this inclined surface so designs: said inclined surface adapts to 45 ° of inclinations angle and the subtend of the corresponding design of fillister head screw, cheese head screw and machine screw with oval countersunk fillister head or 45 ° of inclinations angle of radial slot of the conical head bottom of said slotted screw.

20. instrument according to claim 15; It is characterized in that; This top is manufactured to the magnetic cell that is used to receive the slotted screw of being made by ferrous metal to be threaded into, or is used to receive the centering auxiliary member of the slotted screw of being made by ferrous metal to be threaded into.

21. instrument according to claim 15 is characterized in that, the top on the said screw pressure surface (1) has the anti-skidding mechanism that is used for the power transmission and feels relieved in the flute wall surfaces of waiting to screw in slotted screw.