CN100458191C - Retaining screw with a multiple-recessed head for flat and cross-shaped operating tools - Google Patents

Retaining screw with a multiple-recessed head for flat and cross-shaped operating tools Download PDF

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Publication number
CN100458191C
CN100458191C CNB2005800035461A CN200580003546A CN100458191C CN 100458191 C CN100458191 C CN 100458191C CN B2005800035461 A CNB2005800035461 A CN B2005800035461A CN 200580003546 A CN200580003546 A CN 200580003546A CN 100458191 C CN100458191 C CN 100458191C
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CN
China
Prior art keywords
cross
reentrant part
axis
fastening screw
trip bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CNB2005800035461A
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Chinese (zh)
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CN1914428A (en
Inventor
T·法瓦莱萨
J-J·古瑟罗尔
B·莱斯屈尔
C·勒克
C·努奥
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Legrand SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
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Publication of CN1914428A publication Critical patent/CN1914428A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0023—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0092—Specially shaped nuts or heads of bolts or screws for rotations by a tool with a head engageable by two or more different tools

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Prosthetics (AREA)
  • Connection Of Plates (AREA)

Abstract

The invention relates to a retaining screw (100) with a multiple-recessed head (101) comprising a first recess (110) and a second recess (120) thereabove, wherein said first recess is straight, extends along axis X and is engageable by the flat end of an operating tool, and said second recess is a cross-shaped recess engageable by the cross-shaped end of an operating tool and comprising two flanges (121, 122) extending along mutually perpendicular axes X1 and Y1, respectively, where one of the two flanges extending along axis X1 is located mainly at the bottom of said first, straight recess. Axis X1 of said flange of the second, cross-shaped recess is shifted through an angle (alpha) of 5-15 degrees , preferably 8 degrees, relative to the axis X of the first, straight recess.

Description

Be used for being provided with comprising of flat and cross-shaped operating tools the fastening screw trip bolt of the head that makes up reentrant part
Technical field
Relate generally to of the present invention is suitable for that parts are fastened to another parts or is fastened to the member of any supporting member.
The present invention relates more specifically to comprise the fastening screw trip bolt of the head that is provided with the combination reentrant part.
Background technique
Generally speaking, as shown in Figure 1, a kind of like this fastening screw trip bolt 1 of the prior art comprises the combination reentrant part in its head 2, this combination reentrant part comprises the first stacked reentrant part 3 and second reentrant part 4, described first reentrant part 3 is along the straight trough of axis X extension and is suitable for admitting the flat end of manipulation tool, and described second reentrant part 4 is criss-cross and be suitable for admitting the cross end of manipulation tool, and described second reentrant part 4 has respectively along two vertical axis X 1And Y 1Two cross branches (aile) 5,6 of extending, these two cross branch medial axis are X 1 A cross branch 5 mainly be arranged in the bottom of described straight first reentrant part 3.
In this fastening screw trip bolt 1 of prior art, axis X 1Overlap with axis X.
Therefore, because straight reentrant part 3 must be wider than any the cross branch in the cross branch 5,6 of cross reentrant part 4, so along axis X 1The major component of the cross branch 5 of extending disappears, and has only the tip part of cross reentrant part to appear in the bottom of straight reentrant part 3.
As a result, owing to be located in the bottom of straight reentrant part 3 along axis X 1In fact effectively tightening with relieved areas 7 and 8 in the cross branch 5 of extending do not exist, therefore be used to tighten and the cross end that unclamps cross reentrant part 4 and manipulation tool against thereon so that tighten or the effective area 7,8,11,12 of unclamping described fastening screw trip bolt 1 reduces greatly.
In practice, with the validity of the manipulation tool that is integrated in described cross reentrant part 4 compounding practices in the straight reentrant part 3, reduce by half with comparing with the same tool of not integrated like this cross reentrant part compounding practice.
In addition, in the process of tightening or unclamping, the tip of manipulation tool often slips off from described cross reentrant part 4, not only causes damage to described cross reentrant part 4 but also to straight reentrant part 3 thus.
Document DE 7146470 has described a kind of fastening screw trip bolt that comprises the head that is provided with a straight reentrant part and a cross reentrant part, and it is one arbitrarily angled that described straight reentrant part and cross reentrant part are offset mutually.
Yet, the relative positioning of these two reentrant part in the head of the fastening screw trip bolt described in the document is not optimum, because the value to the deviation angle between these two reentrant part does not describe, and only can infer that from the accompanying drawing of the document described angle equals 90 °, 45 ° or 20 °.
Summary of the invention
In order to remedy the above-mentioned defective of prior art, the present invention proposes a kind of novel fastening screw trip bolt that comprises the head that makes up reentrant part that has, in this combination reentrant part, the cross reentrant part is by this way with respect to straight reentrant part orientation, and promptly it is accurate and makes it optimization to be kept for tightening and unclamping effective bearing area at the cross tip of using manipulation tool.
More specifically, the invention provides a kind of fastening screw trip bolt, this fastening screw trip bolt comprises the head that is provided with the combination reentrant part, this combination reentrant part comprises the first stacked reentrant part and second reentrant part, described first reentrant part is along the straight trough of axis X extension and is suitable for admitting the flat end of manipulation tool, described second reentrant part is the cross reentrant part that is suitable for admitting the cross end of manipulation tool, and described second reentrant part comprises respectively along two vertical axis X 1, Y 1Two cross branches of extending, these two cross branch medial axis are X 1A cross branch mainly in the bottom of described straight first reentrant part, extend.
This fastening screw trip bolt is characterised in that, the axis X of the described cross branch of cross second reentrant part 1Axis X with respect to the first straight reentrant part is offset an angle [alpha], and this angle [alpha] and is preferably about 8 ° in 5 ° to 15 ° scope.
The nonrestrictive advantageous feature of other of fastening screw trip bolt of the present invention is as follows:
-described axis X 1Skew be clockwise skew;
-described combination reentrant part comprises cross the 3rd reentrant part that its center overlaps with the center of described cross second reentrant part, and described the 3rd reentrant part comprises respectively along two vertical axis X 2, Y 2Two cross branches of extending, wherein said two cross branch medial axis are X 2A cross branch mainly in the bottom of described straight first reentrant part, extend the axis X of the described cross branch of cross the 3rd reentrant part 2With respect to axis X with axis X 1The opposite direction of skew on the angle beta of skew one non-zero;
-described angle beta and is preferably about 8 ° in 5 ° to 15 ° scope;
-described angle [alpha] and β equate;
-each cross reentrant part has the taper envelope;
-each cross reentrant part has and is used to tighten and unclamps effective bearing area with the tip of manipulation tool, and described effective bearing area is formed on the opposing sidewalls of cross branch of cross reentrant part; And
Extend on the opposing sidewalls of straight reentrant part the described effective bearing area of-part.
Description of drawings
The following explanation of carrying out with reference to the accompanying drawing that provides as non-limiting example shows the content that the present invention includes and how to realize the present invention.
In the accompanying drawings:
-Fig. 1 is the schematic plan of the fastening screw trip bolt of prior art;
-Fig. 2 is first embodiment's of a fastening screw trip bolt of the present invention schematic plan;
-Fig. 3 is second embodiment's of a fastening screw trip bolt of the present invention schematic plan;
-Fig. 4 is the perspective schematic view of observing from the side, and the tip of the cruciform screw driver in the combination reentrant part of head of the fastening screw trip bolt that is bonded on Fig. 2 is shown;
-Fig. 5 A is the sectional view on the A-A of the plane of Fig. 4; And
-Fig. 5 B is the sectional view on the A-A of plane, and the tip of the cruciform screw driver in the combination reentrant part of head of the fastening screw trip bolt that is bonded on Fig. 3 is shown.
Embodiment
Fig. 2 and 4 shows the fastening screw trip bolt 100 with threaded body 102, and this is a head 101 above threaded body 102.In this example, the shape of head 101 is circular.
In shown embodiment, the head 101 of fastening screw trip bolt 100 is provided with a combination reentrant part in its front, and this combination reentrant part comprises the first stacked reentrant part 110 and second reentrant part 120.
First reentrant part 110 is straight reentrant part or the grooves that extend in the diameter upper edge of described head 101 axis X.This first straight reentrant part 110 is limited with two relative sidewalls 111,112 by a bottom.This first reentrant part is suitable for admitting the flat end of standard maneuver instrument (not shown).
Second reentrant part 120 is to be suitable for admitting the cross end of manipulation tool 200 or (standardization) cross reentrant part at cross tip 201.
This second reentrant part 120 has the taper envelope V that the center is C, and comprises respectively along two vertical axis X 1And Y 1Two cross branches (aile) 121 and 122 of extending.These two cross branch medial axis are X 1 A cross branch 121 mainly in the bottom of described straight first reentrant part 110, extend.
Ignoring under the situation of tolerance, the shape complementarity at the shape of described cross second reentrant part 120 and the cross tip 201 of manipulation tool 200, thereby when the cross tip 201 of manipulation tool 200 joined in described cross second reentrant part 120, the 201A of cross branch, the 201B at cross tip 201 was resisted against on the sidewall of cross branch 121,122 of described cross second reentrant part 120.
In known manner, the width of the first straight reentrant part 110 is greater than the cross branch 121 of cross second reentrant part 120 and 122 width.
According to the present invention, advantageously---shown in Fig. 2 and 5A---cross second reentrant part 120 as described in extend in the bottom of straight first reentrant part 110 as described in the axis X of cross branch 121 1Be offset the angle [alpha] of a non-zero with respect to the axis X of the first straight reentrant part 110.
In this example, axis X 1Skew be (S represents by arrow) in the clockwise direction.
Obviously, the axis Y of another cross branch 122 of cross second reentrant part 120 1With respect to the vertical axis Y deviation angle α on identical direction of axis X of straight first reentrant part 110.
More generally, the cross reentrant part 120 of fastening screw trip bolt of the present invention 100 shown in Figure 2 is with respect to cross reentrant part 4 angular variation angle [alpha] on direction S of the head 2 of the fastening screw trip bolt 1 of prior art shown in Figure 1.
Angle [alpha] and is preferably about 8 ° in 5 ° to 15 ° scope.
Shown in Fig. 2 and 5A, cross second reentrant part 120 has effective bearing area 121A, 122A and the 122B that is used to tighten and unclamp the cross tip 201 of using manipulation tool 200.
Effectively bearing area 121A, 122A and 122B are formed in the cross branch 121 and 122 opposing sidewalls of described cross reentrant part 120.
As more specifically illustrating among Fig. 2 and the 5A, described cross second reentrant part 120 makes with respect to axis X, Y deviation angle α and effective bearing area 121A of purpose occurs being used to tighten, to be used to admit the cross tip 201 of manipulation tool 200, the axis that described zone comes from cross second reentrant part 120 is X 1The sidewall of described cross branch 121.These effective bearing area 121A that are used for tightening are snapped to the opposing sidewalls 111 and 112 and the main body of the head 101 of fastening screw trip bolt 100 of described straight first reentrant part 110.
These effective bearing areas that are used for tightening do not exist at the cross reentrant part 4 of the combination reentrant part of the head 2 of the fastening screw trip bolt 1 of prior art shown in Figure 1 because along corresponding cross branch 5 that the axis X of the bigger straight reentrant part 3 of width is extended in described straight reentrant part major part disappeared.
Therefore, the layout of the combination reentrant part of the fastening screw trip bolt of the present invention 100 shown in Fig. 2 and 5A makes it possible to obtain by cross-shaped operating tools 200 the better joint of fastening screw trip bolt 100, and in utilizing the tightening of the most advanced and sophisticated manipulation tool of cross, obtain bigger validity, because this cross tip manipulation tool partly is resisted against on the opposing sidewalls of straight reentrant part in rundown process.
In addition, because the layout of combination reentrant part in the fastening screw trip bolt 100 of the present invention, eliminated the phenomenon that the most advanced and sophisticated manipulation tool of cross is slided in the rundown process, because its cross tip has on the opposing sidewalls that extra bearing area is resisted against straight reentrant part in rundown process.
Fig. 3 and 5B show a variant embodiment of the present invention, wherein fastening screw trip bolt 100 ' have head 101 ', this head 101 ' in its front is provided with a combination reentrant part, this combination reentrant part comprise the first stacked reentrant part 110 ', second reentrant part 120 ' and the 3rd reentrant part 130 '.
First reentrant part 110 ' be described head 101 ' the straight trough that extends of diameter upper edge axis X.This first reentrant part 110 ' by a bottom and two relative sidewalls 111 ', 112 ' limit.This first reentrant part is suitable for admitting the flat end of standard maneuver instrument (not shown).
Second reentrant part 120 ' be to be suitable for admitting the cross end of manipulation tool or (standardization) cross reentrant part at cross tip.
The 3rd reentrant part 130 ' be (standardization) cross reentrant part equally, itself and the identical center C of described second reentrant part 120 ' have.
Two cross reentrant part 120 ' with 130 ' be identical, both's (being suitable for) admits the cross tip of single manipulation tool thus.
Second reentrant part 120 ' have the center is the taper envelope V of C, and comprises respectively along two vertical axis X 1And Y 1Two cross branches 121 of extending ' and 122 '.These two cross branch medial axis are X 1A cross branch 121 ' mainly described straight first reentrant part 110 ' the bottom in extend.
The 3rd reentrant part 130 ' have the center is the taper envelope V of C, and comprises respectively along two vertical axis X 2And Y 2Two cross branches 131 of extending ' and 132 ', wherein these two cross branch medial axis are X 2A cross branch 131 ' mainly described straight first reentrant part 110 ' the bottom in extend.
Ignoring under the situation of tolerance, criss-cross second reentrant part 120 ' and the 3rd reentrant part 130 ' in each shape all most advanced and sophisticated complementary with the cross of manipulation tool, thereby when joining described criss-cross second reentrant part 120 ' or the 3rd reentrant part 130 ' middle at the described cross tip of manipulation tool 200, the cross branch at described cross tip be resisted against described cross second reentrant part 120 ' cross branch 121 ', 122 ' or cross the 3rd reentrant part 130 ' cross branch 131 ', 132 ' sidewall on.
The first straight reentrant part 110 ' width greater than criss-cross second reentrant part 120 ' and the 3rd reentrant part 130 ' in each cross branch 121 ', 122 ', 131 ', 132 ' width.
According to the present invention, advantageously---shown in Fig. 3 and 5B---cross second reentrant part 120 ' as described in straight first reentrant part 110 ' the bottom in extend as described in cross branch 121 ' axis X 1With respect to the first straight reentrant part 110 ' axis X be offset the angle [alpha] of a non-zero, and cross the 3rd reentrant part 130 ' described cross branch 131 ' axis X 2With respect to axis X with axis X 1The opposite direction of skew on the angle beta of skew one non-zero.
Here, axis X 1Skew be clockwise direction (S represents by arrow), so axis X 2Skew be counterclockwise (T represents by arrow).
Obviously, cross second reentrant part 120 ' another cross branch 122 ' axis Y 1With respect to straight first reentrant part 110 ' also deviation angle α of the vertical axis Y of axis X, and cross the 3rd reentrant part 130 ' another cross branch 132 ' axis Y 2With respect to axis Y offset angle similarly.
More generally, fastening screw trip bolt of the present invention 100 shown in Figure 3 ' cross second reentrant part 120 ' and cross the 3rd reentrant part 130 ' with respect to the cross reentrant part 4 of the head 2 of the fastening screw trip bolt 1 of prior art shown in Figure 1 respectively angular variation angle [alpha] on the direction S and on direction T the angular variation angle beta.
Angle [alpha] and is preferably about 8 ° in 5 ° to 15 ° scope.
Angle beta and is preferably about 8 ° in 5 ° to 15 ° scope.
In this example, angle [alpha] and β equate.
Shown in Fig. 3 and 5B, cross second reentrant part 120 ' have is used to tighten effective bearing area 121 ' A, the 122 ' A with the cross tip of manipulation tool, and cross the 3rd reentrant part 130 ' the have effective bearing area 131 ' B, the 132 ' B that are used to unclamp with the cross tip of manipulation tool.
These effective bearing area 121 ' A, 122 ' A, 131 ' B, 132 ' B be formed at respectively described cross reentrant part 120 ', 130 ' cross branch 121 ', 122 ', 131 ', 132 ' opposing sidewalls on.
As more specifically illustrating among Fig. 3 and the 5B, because cross second reentrant part 120 ' and cross the 3rd reentrant part 130 ' with respect to axis X and Y deviation angle α and β, so can see tightening with effective bearing area 121 ' A and unclamping with effective bearing area 131 ' B of cross tip that manipulation tool occurs being used for, it is X that described effective bearing area comes from cross second reentrant part 120 ' medial axis respectively 1Described cross branch 121 ' sidewall and cross the 3rd reentrant part 130 ' medial axis be X 2Described cross branch 131 ' sidewall.
These be used for tightening and the effective bearing area 121 ' A, the 131 ' B that unclamp be snapped to described straight first reentrant part 110 ' opposing sidewalls 111 ' and 112 ' and fastening screw trip bolt 100 ' head 101 ' main body.
Tighten with release process in these effective bearing areas in the cross reentrant part 4 of the combination reentrant part of the head 2 of the fastening screw trip bolt 1 of prior art shown in Figure 1, do not exist because along corresponding cross branch 5 that the axis X of the bigger straight reentrant part 3 of width is extended in described straight reentrant part major part disappeared.
Therefore, fastening screw trip bolt of the present invention 100 shown in Fig. 3 and the 5B ' the layout of combination reentrant part make it possible to utilize the most advanced and sophisticated manipulation tool of cross tighten and unclamp in obtain bigger validity because tighten with release process in this cross tip manipulation tool all partly be resisted against straight reentrant part 110 ' opposing sidewalls on.
In addition, because the layout of fastening screw trip bolt 100 of the present invention ' middle combination reentrant part, eliminated the phenomenon that the most advanced and sophisticated manipulation tool of cross is slided in the rundown process because in the process of tightening and unclamping its cross tip all be resisted against extraly straight reentrant part 110 ' opposing sidewalls on.
The present invention is confined to the embodiment that institute describes and illustrates never in any form, and those skilled in the art can make any variation according to its spirit.

Claims (9)

1. fastening screw trip bolt (100; 100 '), comprise the head (101 that is provided with the combination reentrant part; 101 '), this combination reentrant part comprises the first stacked reentrant part (110; 110 ') and second reentrant part (120; 120 '), described first reentrant part (110; 110 ') be the straight trough that extends along axis X and be suitable for admitting the flat end of manipulation tool, described second reentrant part (120; 120 ') be the cross reentrant part that is suitable for admitting the cross end of manipulation tool, described second reentrant part (120; 120 ') comprise respectively along two vertical axis X 1, Y 1Two cross branches (121,122 of extending; 121 ', 122 '), these two cross branch medial axis are X 1A cross branch (121; 121 ') mainly in the bottom of described first reentrant part directly, extend, described screw is characterised in that, cross second reentrant part (120; 120 ') described cross branch (121; 121 ') axis X 1With respect to the first straight reentrant part (110; 110 ') axis X skew one be about 8 ° angle [alpha].
2. fastening screw trip bolt (100 according to claim 1; 100 '), it is characterized in that described axis X 1Skew be clockwise skew.
3. fastening screw trip bolt according to claim 1 and 2 (100 '), it is characterized in that, described combination reentrant part comprises cross the 3rd reentrant part (130 ') that its center overlaps with the center of described cross second reentrant part (120 '), and described the 3rd reentrant part (130 ') comprises respectively along two vertical axis X 2, Y 2Two cross branches of extending (131 ', 132 '), wherein said two cross branch medial axis are X 2A cross branch (131 ') mainly in the bottom of described straight first reentrant part (110 '), extend the axis X of the described cross branch (131 ') of cross the 3rd reentrant part (130 ') 2With respect to axis X with axis X 1The opposite direction of skew on the angle beta of skew one non-zero.
4. fastening screw trip bolt according to claim 3 (100 ') is characterized in that described angle beta is in 5 ° to 15 ° scope.
5. fastening screw trip bolt according to claim 4 (100 ') is characterized in that, described angle beta is about 8 °.
6. fastening screw trip bolt according to claim 3 (100 ') is characterized in that described angle [alpha] and β equate.
7. fastening screw trip bolt (100 according to claim 1; 100 '), it is characterized in that each cross reentrant part (120; 120 ', 130 ') have a taper envelope (V).
8. fastening screw trip bolt (100 according to claim 1; 100 '), it is characterized in that each cross reentrant part (120; 120 ', 130 ') have and be used to tighten and unclamp effective bearing area (121A, 122A, 122B with the tip of manipulation tool; 121 ' A, 122 ' A; 131 ' B, 132 ' B), described effective bearing area is formed at cross reentrant part (120; 120 ', 130 ') cross branch (121,122; 121 ', 122 ', 131 ', 132 ') opposing sidewalls on.
9. fastening screw trip bolt (100 according to claim 8; 100 '), it is characterized in that the described effective bearing area (121A of part; 121 ' A, 131 ' B) at straight reentrant part (110; 110 ') opposing sidewalls (111,112; 111 ', 112 ') go up and extend.
CNB2005800035461A 2004-02-11 2005-01-26 Retaining screw with a multiple-recessed head for flat and cross-shaped operating tools Expired - Fee Related CN100458191C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0401345 2004-02-11
FR0401345A FR2866084B1 (en) 2004-02-11 2004-02-11 FASTENING SCREW COMPRISING A MIXED FOOTPRINT HEAD FOR FLAT AND CRUCIFORM TOOLS

Publications (2)

Publication Number Publication Date
CN1914428A CN1914428A (en) 2007-02-14
CN100458191C true CN100458191C (en) 2009-02-04

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Application Number Title Priority Date Filing Date
CNB2005800035461A Expired - Fee Related CN100458191C (en) 2004-02-11 2005-01-26 Retaining screw with a multiple-recessed head for flat and cross-shaped operating tools

Country Status (4)

Country Link
EP (1) EP1714043A1 (en)
CN (1) CN100458191C (en)
FR (1) FR2866084B1 (en)
WO (1) WO2005088141A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7146470U (en) * 1971-12-09 1972-11-02 Fa F Schloetermann screw
CN2173877Y (en) * 1992-12-05 1994-08-10 蓝太富 Double purpose screwdriver screw
JPH10131930A (en) * 1996-10-24 1998-05-22 Katsuyuki Totsu Combination of +/-screw and driver bit
CN2409372Y (en) * 1999-12-30 2000-12-06 黄翔华 Regular polygon prism screw with cross slot
US6378406B1 (en) * 1998-02-24 2002-04-30 Katsuyuki Totsu Combination of driver bit and screw

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7146470U (en) * 1971-12-09 1972-11-02 Fa F Schloetermann screw
CN2173877Y (en) * 1992-12-05 1994-08-10 蓝太富 Double purpose screwdriver screw
JPH10131930A (en) * 1996-10-24 1998-05-22 Katsuyuki Totsu Combination of +/-screw and driver bit
US6378406B1 (en) * 1998-02-24 2002-04-30 Katsuyuki Totsu Combination of driver bit and screw
CN2409372Y (en) * 1999-12-30 2000-12-06 黄翔华 Regular polygon prism screw with cross slot

Also Published As

Publication number Publication date
EP1714043A1 (en) 2006-10-25
CN1914428A (en) 2007-02-14
FR2866084A1 (en) 2005-08-12
FR2866084B1 (en) 2007-11-02
WO2005088141A1 (en) 2005-09-22

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