EP1028831A1 - Actuating tool - Google Patents
Actuating toolInfo
- Publication number
- EP1028831A1 EP1028831A1 EP98938686A EP98938686A EP1028831A1 EP 1028831 A1 EP1028831 A1 EP 1028831A1 EP 98938686 A EP98938686 A EP 98938686A EP 98938686 A EP98938686 A EP 98938686A EP 1028831 A1 EP1028831 A1 EP 1028831A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool according
- spring ring
- operating tool
- recess
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000012790 confirmation Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/001—Screwdrivers characterised by material or shape of the tool bit
- B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
- B25B15/008—Allen-type keys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
- B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
- B25B23/108—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a Philips type bit, an Allen type bit or a socket
Definitions
- the invention relates to an actuating tool for a fastening means having an internal polygonal arrangement.
- An actuating tool of the type mentioned is known from DE-PS 44 16 268. It is used to screw in or remove hexagon socket screws.
- the tool has an external hexagon that fits into the hexagon socket of the screw.
- An elastic clamping device which is introduced into a recess in the insertion end, is arranged on an insert having the external hexagon.
- the clamping device designed as a snap ring, is subjected to a force.
- the tapered open ends of the snap ring move towards each other so that its outer diameter is reduced. This allows the introducer to slide into the hexagon socket of the screw.
- a screwdriver with a polygonal engagement area is known from German utility model 297 08 764. This has a recess into which a plastic ring is inserted, which deforms elastically when the tool is pressed into the inner polygonal arrangement of a screw.
- a spring ring is inserted into the recess, the contour of which resembles a rosette, the areas between the rounded corners being curved.
- Such clamping elements, especially the plastic ring wear out very quickly when used frequently.
- the spring ring with the rosette-like contour is complex and expensive to manufacture.
- the tool is characterized in particular by the fact that a recess for a spring washer is made in a tool head having an external polygonal arrangement, the width of which is greater than the dimension of the spring washer measured in the direction of the width, the spring derring is designed such that it is resiliently supported at least in regions on side walls of the recess.
- the resilient support advantageously ensures that the spring ring is centered when the tool head is first inserted into an internal polygonal arrangement of a screw and maintains this position after the tool has been removed from the screw. It is thus fixed or braced in the recess by the resilient support.
- the push-on force therefore remains almost constant during further attaching operations, since the boundary edges of the internal polygonal arrangement essentially meet at the same point on the spring ring when the tool is attached.
- the force is transmitted from the boundary edges to the spring ring essentially always at the same tangent angle.
- the confirmation tool according to the invention is thus characterized in that the spring ring cannot slip in the recess in an uncontrolled manner, as a result of which a simple and secure attachment of the tool is ensured with an almost constant attachment force.
- the spring ring forms a helical spring-like turn.
- the spring ring is entangled in itself, the ends of the preferably open spring ring being in a laterally offset opposing position. Due to the entanglement of the spring ring, the winding of which thus runs along an imaginary helix, the spring ring is at least partially supported on the side walls of the recess in a resilient manner. A secure fixation of the spring ring in the recess is thus realized.
- the Recess on one level a normal of this level coinciding with a longitudinal axis of the actuating tool. The spring ring thus runs on a concentric circular path around the longitudinal axis of the tool.
- the depth of the recess is the same size or greater than the dimension of the spring ring measured in the direction of the depth. This ensures that the spring ring is completely absorbed by the recess when a force is applied.
- the spring ring projects beyond at least one preferably every flat surface of the outer polygonal arrangement.
- constant forces act on the spring ring from every flat surface of the inner polygonal arrangement.
- the recess is designed as an essentially rectangular or U-shaped groove.
- the entangled spring ring can be supported at least in regions on the legs of the groove. In this way, it maintains its position with respect to the tool longitudinal axis.
- the spring ring is formed by a preferably spring-hard wire, which can have an essentially circular cross section.
- the spring ring has an angular cross section, which is preferably triangular, square or hexagonal. In addition, it is possible to make the cross section trapezoidal.
- the diameter of the cross section of the spring ring is 0.07 to 0.14 times a wrench size defined by the polygonal arrangement.
- the actuating tool is characterized in that the tool head is formed by two spherical sections, the base surfaces of which face one another and are arranged at a distance from one another and whose center points — measured in the direction of the longitudinal axis of the actuating tool — are preferably at a distance from one another.
- a spherical head comprising two spherical halves is thus formed, the has the dimensions of the outer polygonal arrangement and which allows the actuating tool to be inserted into the inner polygonal arrangement even when the longitudinal axis of the actuating tool is not aligned with the longitudinal axis of the screw. This is particularly advantageous if the screw is behind an obstacle.
- center point of the first spherical section and the center point of the second spherical section lie on the longitudinal axis of the actuating tool and that the center points lie in a space between the base surfaces of the spherical sections.
- the ball head is arranged with a ball section on a shaft of the actuating tool and that a truncated cone is preferably placed on the other spherical section, the lateral surface of which encloses an angle ⁇ with the normal, that is to say the longitudinal axis of the confirmation tool. It is also preferably provided that the central axis of the truncated cone coincides with the longitudinal axis of the actuating tool.
- the truncated cone placed on the spherical section forms an insertion region of the tool, which on the one hand limits a pivoting angle of the actuating tool with respect to the longitudinal axis of the screw.
- the maximum permissible swivel angle can be 30 ° to 40 °, preferably 30 °. It is therefore envisaged that the lateral surface forms an angle of 30 ° with the normal, that is, the longitudinal axis of the actuating tool.
- the truncated cone has a polygonal arrangement on its outer surface, the outer polygonal arrangement of the tool head merging into the polygonal arrangement of the truncated cone. This ensures that power transmission with the actuating tool pivoted is also possible via the polygonal arrangement of the truncated cone.
- at least two surfaces of the polygonal arrangement of the truncated cone rest on the opposite flat surfaces of the inner polygonal arrangement when the maximum swivel angle is reached. There are surfaces on top of each other, whereby an impermissibly high surface pressure can be avoided, so that both the screw and the actuating tool are not damaged.
- FIG. 1 shows a perspective view of a tool head of an actuating tool
- FIG. 2 shows a section through the tool head of FIG. 1,
- FIG. 3 a spring ring
- FIG. 4 shows the tool head according to FIG. 1 in a side view
- an actuating tool in particular a wrench
- a fastening means in particular an Allen screw
- the inner polygonal arrangement can also have different numbers of edges.
- the actuating tool has a spherical head-like tool head. Of course, however, it is also possible to design the tool head in a cylindrical shape.
- An actuating tool 1 is shown in FIG. It comprises an essentially cylindrical, hexagonal shaft 3. This has a tool head 5 at its end. This is designed as a hexagon ball head with an external hexagon arrangement 7.
- the tool head 5 is made in one piece with the shank 3, the shank 3 comprising beveled surfaces 9 which drop in the direction of a central axis of the tool in such a way that a constriction 11 is formed.
- the tool head 5 adjoins with surfaces 13 which rise in their course to one end 15 of the tool head 5, thus increase their distance from the longitudinal axis of the actuating tool 1.
- a recess 17 is provided, which is realized as an essentially rectangular or U-shaped groove 19, also referred to as a groove.
- the tool head 5 is formed by a first spherical section 20.
- the groove 19 receives a spring ring 21.
- the groove 19 is adjoined by curved surfaces 23 which drop in the direction of the central axis of the actuating tool 1.
- the surfaces 23 are the outer surfaces of a second spherical section 25 of the tool head 5, on which a truncated cone 27 is placed. This forms the end 15 of the actuating tool 1 with its truncated surface 29.
- the truncated cone has a polygonal arrangement, in particular a hexagonal arrangement 33, on its lateral surface 31. It can easily be seen in FIG. 1 that the external hexagon arrangement 7 or the tool head 5 is formed by the first spherical section 20, the second spherical section 25 and the truncated cone 27. That is, the surfaces 13 of the first spherical section 14, the surfaces 23 of the second spherical section 25 and the lateral surface 31 each merge.
- Figure 2 shows a sectional view of the tool head 5 in an enlarged view.
- the preferably open spring ring 21 is arranged in the groove 19. It lies at a distance from a groove base 35 of the groove 19.
- the depth t of the recess 17 or groove 19 is selected such that the spring ring 21, the cross section of which has a diameter d, is loaded Condition can be completely absorbed by the groove 19.
- a “loaded state” is understood to mean that the spring ring 21 is acted upon from the outside on its outer surface 36 by a force which forces it or its ends 37 or 37 'together. It can also be readily seen that the spring ring 21 projects beyond the surfaces 13 and the surfaces 23 (FIG. 4).
- the open spring ring 21 has an opening gap 39, the width b of which is selected such that when the spring ring 21 is acted upon by force, its outer diameter A is reduced such that it is completely received by the groove 19 or recess 17.
- the fact that the ends 37 and 37 'are at a short distance from one another in the loaded state provides a residual elasticity which enables the ends 37 and 37' to be moved further towards one another. For example, this may be necessary when the actuating tool 1 swivels relative to a screw.
- the ends 37 and 37 'of the spring ring 21 are preferably sharp-edged and free of any degrees, so that flat cross-sectional areas are formed which almost touch when the spring ring 21 is loaded. Furthermore, a wrench size SW is shown in Figure 2, which is defined by a distance between two diametrically opposite surfaces. The diameter d of the spring ring 21 is preferably 0.07 to 0.14 times the width across flats SW.
- the spring ring 21 is shown in side view. It can be seen that the spring ring 21 has a winding W which follows an imaginary helix. As a result, the ends 37 and 37 'are not in direct opposition, but are laterally offset from one another. The spring ring 21 is thus entangled so that it is resiliently supported with its lateral surface 36 on side walls 41 and 43 ( Figure 4). However, it is also possible to design the spring ring 21 in a wave shape, so that a quasi-meandering spring ring is realized. Finally, an interleaved spring washer 21 can also be designed in a wave shape.
- the actuating tool 1 is shown schematically in a side view, the illustration of the polygon arrangement being omitted for the sake of clarity. It can be seen that the spring ring 21 is centered with respect to a longitudinal axis 45 of the actuating tool 1, the spring ring 21 being shown in the unloaded state, that is to say at a distance from the groove base 35.
- the tool head 5 is formed from the spherical sections 20 and 25 and the truncated cone 27. Furthermore, it is clearly shown that the recess 17 runs on a plane E1, a normal of this plane E1 coinciding with the longitudinal axis 45. Otherwise, the same parts as in Figure 1 are provided with the same reference numerals, in this respect reference is made to their description.
- FIG. 5 shows the actuating tool 1 in a sectional view, the longitudinal axis 45 lying in the sectional plane. Parts that are the same as in FIGS. 1 to 4 are provided with the same reference numerals, so that they are described again. exercise waived.
- FIG. 5 shows again that the tool head 5 is formed by the first and second spherical sections 20 and 25 and the truncated cone 27.
- the base surfaces of the first and second spherical sections 20 and 25 face one another and are preferably arranged at a distance x from one another which reflects the width of the recess 17 or groove 19.
- of the first spherical section 14 and a center point M2 of the second spherical section 25 lie on the longitudinal axis 45 of the actuating tool 1 at a distance from one another and in a space between the base surfaces of the spherical sections 20 and 25.
- the diameter r of the first and second spherical sections 20 and 25 is preferred slightly larger than half the width across flats. This means that at the transition between the side wall 41 of the groove 19 and the surface 23 of the second spherical section 25, the largest diameter of the tool head is reached, which corresponds to the width across flats SW of the polygonal arrangement.
- the width across flats SW of the polygonal arrangement is formed by the surfaces 13 and 23. This means that the distance from two diametrically opposite surfaces 13 and 23 corresponds to twice the radius r and defines the width across flats SW, if - as already mentioned - the actuating tool 1 is to be introduced into the internal polygonal arrangement of the screw at a pivoting angle.
- the maximum swivel angle of the actuating tool 1 with respect to the screw is determined by the angle which the lateral surface 31 of the truncated cone 27 forms with the central axis 45. closes. In particular, this angle can be 30 ° to 40 °, here about 30 °.
- the angle thus determines the maximum permissible swivel range of the actuating tool 1 with respect to the screw. That is to say, when the tool head 5 is inserted into the inner polygon arrangement, the actuating tool 1 can be pivoted until a surface of the hexagon arrangement 33 bears against a side surface of the inner polygon arrangement.
- the dimension M of the constriction is to be adapted to the angle ⁇ , that is to say the diameter of the constriction 11 is such that, at the maximum swivel angle, contact of the actuating tool 1 in the region of the constriction 11 with a screw is avoided.
- the truncated cone 27 prevents the tool head 5 from being inserted into the screw. This is achieved in that the longitudinal extension of the truncated cone 27 is selected such that at least one boundary edge of the inner polygonal arrangement of the screw meets the stump surface 29 or a transition edge 47 between the outer surface 31 and the stump surface 29 is wedged with an inner surface of the screw, since a distance between the transition edge 47 and a surface 13 is greater than the width across flats SW.
- the truncated cone 27 thus forms an insertion region of the actuating tool 1, which limits the swivel angle and thus prevents damage to the screw and the tool head 5.
- FIGS. 6a to 6d each show a detail of a tool head 5 of an actuating tool 1, which can only be identified by other designs. tion forms of the spring ring compared to the aforementioned embodiment differs.
- FIG. 6a shows a spring ring 21 ', the cross section of which is essentially triangular.
- FIG. 6b shows an essentially hexagonal spring ring 21 ′′,
- FIG. 6c shows an essentially trapezoidal spring ring 21 ′′ ′′ and
- FIG. 6d shows an essentially diamond-shaped spring ring 21 ′′ ′′.
- an incline S of the spring ring 21 ', 21'',21''' and 21 '''' comes into contact with a boundary edge of an internal polygonal arrangement of a screw.
- the insertion force to be applied can be varied by the angle of the slope S relative to the longitudinal center axis 45. Characterized in that the bevel S is provided, a force component acting radially on the spring ring, which moves the spring ring radially inward, is generated when the spring ring strikes the boundary edge of the inner polygonal arrangement. Because there is a constant angle over the entire course of the slope S, an insertion force to be applied is constant in all cases, so that these spring washers are advantageous compared to round spring washers. The latter are characterized by a variable insertion force.
- the tool head 5 can also be realized without a truncated cone 27. In this case, too, optimal holding properties of the spring ring 21 are realized.
- the advantage is also realized that the spring ring is at the maximum possible Swivel angle remains in engagement with the internal polygon arrangement and ensures a secure hold.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Bolts, Nuts, And Washers (AREA)
- Milling Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19744534A DE19744534C2 (en) | 1997-10-09 | 1997-10-09 | Operating tool |
DE19744534 | 1997-10-09 | ||
PCT/EP1998/004128 WO1999019119A1 (en) | 1997-10-09 | 1998-07-04 | Actuating tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1028831A1 true EP1028831A1 (en) | 2000-08-23 |
EP1028831B1 EP1028831B1 (en) | 2002-11-13 |
Family
ID=7845005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98938686A Expired - Lifetime EP1028831B1 (en) | 1997-10-09 | 1998-07-04 | Actuating tool |
Country Status (8)
Country | Link |
---|---|
US (1) | US6302001B1 (en) |
EP (1) | EP1028831B1 (en) |
JP (1) | JP3151178B2 (en) |
KR (1) | KR100496484B1 (en) |
AU (1) | AU8731598A (en) |
DE (1) | DE19744534C2 (en) |
TW (1) | TW371638B (en) |
WO (1) | WO1999019119A1 (en) |
Cited By (1)
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US10987783B2 (en) | 2014-01-16 | 2021-04-27 | Milwaukee Electric Tool Corporation | Screwdriver |
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US6729211B1 (en) | 2002-12-09 | 2004-05-04 | The United States Of America As Represented By The Secretary Of The Navy | Ball socket driver bit |
US6883547B1 (en) | 2003-04-11 | 2005-04-26 | Jnt Technical Services, Inc. | Plug for heat exchanger tubes |
DE20311718U1 (en) * | 2003-07-30 | 2004-12-09 | Stryker Trauma Gmbh | Combination of intramedular nail and target and / or impact instrument |
US8105367B2 (en) | 2003-09-29 | 2012-01-31 | Smith & Nephew, Inc. | Bone plate and bone plate assemblies including polyaxial fasteners |
WO2007014192A2 (en) | 2005-07-25 | 2007-02-01 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
US20060260446A1 (en) * | 2004-04-21 | 2006-11-23 | Chang Sheng M | Tool connecting device |
US8382807B2 (en) | 2005-07-25 | 2013-02-26 | Smith & Nephew, Inc. | Systems and methods for using polyaxial plates |
TWM284495U (en) * | 2005-09-29 | 2006-01-01 | Wen-Chen Min | Hex wrench |
US7980321B2 (en) * | 2006-10-13 | 2011-07-19 | Snap-On Incorporated | Anvil for a power tool |
DE102007036530A1 (en) * | 2007-08-02 | 2009-02-05 | Wiha Werkzeuge Gmbh | Wrench |
US9801667B2 (en) * | 2007-12-07 | 2017-10-31 | Nexus Spine, L.L.C. | Instruments, tools, and methods for presson pedicle screws |
TW200949084A (en) * | 2008-05-30 | 2009-12-01 | Hannspree Inc | Fastening member, fastening unit and apparatus having the same |
CN102271870A (en) | 2008-11-07 | 2011-12-07 | 米沃奇电动工具公司 | Tool bit |
USD623036S1 (en) | 2008-11-07 | 2010-09-07 | Milwaukee Electric Tool Corporation | Insert bit |
USD600520S1 (en) * | 2008-11-26 | 2009-09-22 | Toyohiko Uchida | Tip of a hexagon wrench |
USD711719S1 (en) | 2009-11-06 | 2014-08-26 | Milwaukee Electric Tool Corporation | Tool bit |
RU2013158111A (en) | 2011-06-15 | 2015-07-20 | Смит Энд Нефью, Инк. | IMPLANT WITH A VARIABLE ANGLE OF FIXATION |
TW201300201A (en) * | 2011-06-24 | 2013-01-01 | New Way Tools Co Ltd | Hexagonal ball-headed wrench |
CN103648431B (en) * | 2011-07-06 | 2017-05-17 | 诺贝尔生物服务公司 | Screw and driver composite part |
KR101530329B1 (en) * | 2013-12-04 | 2015-06-22 | 주식회사 일진 | Cone for assembling ring clip |
US10022845B2 (en) | 2014-01-16 | 2018-07-17 | Milwaukee Electric Tool Corporation | Tool bit |
US10005174B2 (en) | 2014-01-28 | 2018-06-26 | Shyh-Ming Wang | Anti-disengagement structure of a tool head for a fastener |
USD769689S1 (en) | 2015-01-15 | 2016-10-25 | Milwaukee Electric Tool Corporation | Fastener driver |
KR102445605B1 (en) * | 2015-02-18 | 2022-09-21 | 가부시키가이샤 지벡크 테크놀로지 | Track calculation program, machining equipment, track calculation method, tools and workpieces |
USD773272S1 (en) * | 2015-06-15 | 2016-12-06 | Hong Ann Tool Industries Co., Ltd. | Tool |
WO2017048909A1 (en) | 2015-09-18 | 2017-03-23 | Smith & Nephew, Inc. | Bone plate |
CN107717815A (en) * | 2016-08-10 | 2018-02-23 | 富泰华工业(深圳)有限公司 | A kind of screwdriver head and the electric screw driver with the screwdriver head |
US11045242B2 (en) | 2016-09-22 | 2021-06-29 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
TWI599455B (en) * | 2016-11-23 | 2017-09-21 | Driven tool that tilts the workpiece | |
US10870188B2 (en) * | 2017-08-14 | 2020-12-22 | Ideal Industries, Inc. | Screwdriver with force applying member |
WO2019109098A1 (en) | 2017-12-01 | 2019-06-06 | Milwaukee Electric Tool Corporation | Wear resistant tool bit |
USD921468S1 (en) | 2018-08-10 | 2021-06-08 | Milwaukee Electric Tool Corporation | Driver bit |
KR102497393B1 (en) * | 2020-11-13 | 2023-02-09 | 주식회사 포비드림 | The bundle weight for gathering a cutlassfish using EL wire |
US20230235793A1 (en) * | 2022-01-26 | 2023-07-27 | Wenger Corporation | Torsional-radial mechanical coupling for theatrical wire rope hoist |
USD1031401S1 (en) * | 2022-07-22 | 2024-06-18 | I-Mei Tien | Universal joint stud |
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1997
- 1997-10-09 DE DE19744534A patent/DE19744534C2/en not_active Expired - Fee Related
- 1997-12-12 JP JP34346397A patent/JP3151178B2/en not_active Expired - Fee Related
- 1997-12-15 KR KR1019970068673A patent/KR100496484B1/en not_active IP Right Cessation
- 1997-12-22 TW TW086119514A patent/TW371638B/en not_active IP Right Cessation
-
1998
- 1998-07-04 US US09/529,042 patent/US6302001B1/en not_active Expired - Lifetime
- 1998-07-04 EP EP98938686A patent/EP1028831B1/en not_active Expired - Lifetime
- 1998-07-04 AU AU87315/98A patent/AU8731598A/en not_active Abandoned
- 1998-07-04 WO PCT/EP1998/004128 patent/WO1999019119A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
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See references of WO9919119A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10987783B2 (en) | 2014-01-16 | 2021-04-27 | Milwaukee Electric Tool Corporation | Screwdriver |
US11945079B2 (en) | 2014-01-16 | 2024-04-02 | Milwaukee Electric Tool Corporation | Screwdriver |
Also Published As
Publication number | Publication date |
---|---|
US6302001B1 (en) | 2001-10-16 |
AU8731598A (en) | 1999-05-03 |
DE19744534C2 (en) | 2000-12-07 |
JPH11114844A (en) | 1999-04-27 |
TW371638B (en) | 1999-10-11 |
KR100496484B1 (en) | 2005-11-16 |
JP3151178B2 (en) | 2001-04-03 |
EP1028831B1 (en) | 2002-11-13 |
DE19744534A1 (en) | 1999-04-22 |
WO1999019119A1 (en) | 1999-04-22 |
KR19990035735A (en) | 1999-05-25 |
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