EP2519386B1 - Outil à multiples embouts ayant des mécanismes d'actionnement à ressort et un cadre structurel rigide - Google Patents

Outil à multiples embouts ayant des mécanismes d'actionnement à ressort et un cadre structurel rigide Download PDF

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Publication number
EP2519386B1
EP2519386B1 EP09852688.2A EP09852688A EP2519386B1 EP 2519386 B1 EP2519386 B1 EP 2519386B1 EP 09852688 A EP09852688 A EP 09852688A EP 2519386 B1 EP2519386 B1 EP 2519386B1
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EP
European Patent Office
Prior art keywords
bit
main frame
spring loaded
tool
housing
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EP09852688.2A
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German (de)
English (en)
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EP2519386A4 (fr
EP2519386A1 (fr
Inventor
Gérard Grand
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F1/00—Combination or multi-purpose hand tools
    • B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements
    • B25F1/04—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements wherein the elements are brought into working positions by a pivoting or sliding movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/08—Handle constructions with provision for storing tool elements
    • B25G1/085—Handle constructions with provision for storing tool elements for screwdrivers, wrenches or spanners

Definitions

  • the present invention relates to a multi-bit tool and also to a multi-bit apparatus in general, and more particularly to a multi-bit tool having spring loaded actuation mechanisms.
  • Tools such as multi-bit screwdrivers, that have a plurality of tool bits that are selectively usable one at a time are well-known. Some examples can be found in US2008/0041194A1 , US5673600A1 or US6205893B1 .
  • one tool bit is manually selected at a time via a sliding button to extend forwardly out of a housing through a bit chuck to an extended in-use configuration.
  • An actuation mechanism causes the selected tool bit to move to its extended in-use configuration in response to the sliding button moving forwardly, and causes the selected tool bit to move back to its retracted configuration in response to the sliding button moving rearwardly.
  • bit assemblies that are necessarily used have too many degrees of freedom to readily move within the housing of the multi-bit tool or multi-bit apparatus without sticking at least occasionally, and possibly frequently, unless certain improvements and/or considerations are made to ensure that a straight open path is presented for a bit assembly so that it does not face any obstructions or any more friction than necessary.
  • a novel multi-bit tool comprising a substantially annular housing having a central interior cavity and a bit chuck with a bit-receiving opening, and defining a longitudinal axis.
  • a substantially rigid main frame member has a front end and a back end. The housing and the substantially rigid main frame member are structurally interconnected one to the other such that the substantially rigid main frame member precludes significant torsional deformation of the housing.
  • a plurality of spring loaded actuator mechanisms are disposed within the interior cavity of the housing. Each spring loaded actuator mechanism has a carriage member movable between a rearward position and a forward position, and a trigger member movable between a rest position, a forward triggering position and a rearward triggering position.
  • Each bit assembly has a tool bit at a front end and is operatively mounted within the housing for movement by the actuator mechanism between a retracted configuration corresponding to the rearward position of the carriage member, and a forwardly extended in-use configuration corresponding to the forward position of the carriage member and whereat the bit assembly is positioned such that the tool bit extends outwardly from the housing through the opening of the bit chuck.
  • Each bit assembly is operatively connected to the carriage member on a corresponding spring loaded mechanism for co-operative movement therewith. In use, as each carriage member moves between its rearward position and its forward position, the corresponding spring loaded actuator mechanism is retained substantially in its correct form by the substantially rigid main frame member.
  • a novel multi-bit tool comprising a substantially annular housing having a central interior cavity and a bit chuck with a bit-receiving opening, and defining a longitudinal axis.
  • a substantially rigid main frame member has a front end and a back end.
  • a plurality of spring loaded actuator mechanisms are carried in rigidly retained relation by the substantially rigid main frame member within the interior cavity of the housing.
  • Each the spring loaded actuator mechanism has a carriage member movable between a rearward position and a forward position, and a trigger member movable between a rest position, a forward triggering position and a rearward triggering position.
  • Each bit assembly has a tool bit at a front end and is operatively mounted within the housing for movement by the actuator mechanism between a retracted configuration corresponding to the rearward position of the carriage member, and a forwardly extended in-use configuration corresponding to the forward position of the carriage member and whereat the bit assembly is positioned such that the tool bit extends outwardly from the housing through the opening of the bit chuck.
  • Each bit assembly is operatively connected to the carriage member on a corresponding spring loaded mechanism for co-operative movement therewith. In use, as each carriage member moves between its rearward position and its forward position, the corresponding spring loaded actuator mechanism is retained substantially in its correct form by the substantially rigid main frame member.
  • the preferred embodiment multi-bit tool 20 comprises a housing 30, a substantially rigid main frame member 40, spring loaded actuator mechanisms 60, a plurality of bit assemblies 70, and an annular collar member 90.
  • the preferred embodiment multi-bit tool 20 comprises a substantially annular housing 30 having a central interior cavity 32 and a bit chuck 34 with a bit-receiving opening 36.
  • the substantially annular housing 30 defines a central longitudinal axis "L".
  • the housing 30 acts as the handle for the multi-bit tool 20, and may be of any suitable shape.
  • the substantially annular housing 30 comprises a forward cone portion 38 and a central handle portion 39 secured one to the other in selectively separable relation by means of suitable threaded fasteners 31 for the sake of manufacturing convenience and to permit subsequent access to the central interior cavity 32 of the substantially annular housing 30.
  • the central handle portion 39 has a plurality of radially arcuate plates 37p disposed at the front end thereof. In the preferred embodiment as illustrated, there are five arcuate plates 37p, with each arcuate plate 37p separated from the two adjacent arcuate plates 37p by a pin receiving slot 37s, the purpose of which will be discussed in greater detail subsequently.
  • the substantially annular housing 30 also has an end cap 33 secured to the back end of the substantially annular housing 30 by means of suitable threaded fasteners 35 for the sake of manufacturing convenience and to permit subsequent access to the central interior cavity 32 of the substantially annular housing 30.
  • substantially rigid main frame member 40 that has a front end 42 and a back end 44.
  • the substantially annular housing 30 and the substantially rigid main frame member 40 are each separate and distinct pieces.
  • the housing 30 and the substantially rigid main frame member 40 are structurally interconnected one to the other such that the substantially rigid main frame member 40 precludes significant torsional deformation of the housing 30.
  • the substantially rigid main frame member 40 is retained within the interior cavity 32 of the housing 30 to be generally aligned along the longitudinal axis "L".
  • the substantially rigid main frame member 40 defines a plurality of longitudinal channels 41, as can readily be seen in the figures.
  • the substantially rigid main frame member 40 is disposed within the housing 30 such that each of the plurality of longitudinal channels 41 is generally aligned along the longitudinal axis "L".
  • the substantially rigid main frame member 40 comprises a plurality of actuator separators 43 extending outwardly from the longitudinal axis "L”.
  • the plurality of actuator separators 43 preferably extend radially outwardly from the longitudinal axis "L”.
  • the substantially rigid main frame member 40 further comprises a central core 46 and wherein the plurality of actuator separators 43 extend radially outwardly from the central core 46.
  • the plurality of actuator separators 43 define a maximum height outwardly from the central core 46.
  • Each the actuator separator 43 comprises a proximal wall portion 48 connected to the central core 46 and a distal wall portion 50 connected to the proximal wall portion 48.
  • Each the proximal wall portion 48 terminates prior to the distal wall portion 50 forwardly along the longitudinal axis "L", thereby defining an open space 52 immediately forward of the proximal wall portion 48.
  • Each proximal wall portion 48 of the substantially rigid main frame member 40 also connects to the forward cone portion 38 of the substantially annular housing 30.
  • the central core 46 extends forwardly along the longitudinal axis "L" past the front of the proximal wall portions 48.
  • the central core 46 is tapered at its front end 47 to accommodate the passage of the tool bits 72 therepast.
  • the ratio of the maximum height "H" of the plurality of actuator separators 43 to the outside diameter "D" of the central core 46 of the substantially rigid main frame member 40 is greater than 1.5:1. This permits the proper accommodation of the plurality of spring loaded actuator mechanisms 60 within the central interior cavity 32 of the substantially annular housing 30. Also in order to properly accommodate the plurality of spring loaded actuator mechanisms 60 within the central interior cavity 32 of the substantially annular housing 30, the proximal wall portion 48 comprises, in cross-section, a reduced waist portion 54.
  • the substantially rigid main frame member 40 is made from metal. Any other suitable material or combination of materials could be used.
  • the plurality of spring loaded actuator mechanisms 60 are disposed within the interior cavity 32 of the housing 30.
  • the plurality of spring loaded actuator mechanisms 60 are carried in rigidly retained relation by the substantially rigid main frame member 40 within the interior cavity 32 of said housing 30.
  • Each spring loaded actuator mechanism 60 is mounted in rigidly retained relation within one channel 41 of the substantially rigid main frame member 40.
  • the plurality of spring loaded actuator mechanisms 60 are mounted within the substantially rigid main frame member 40 such that contact of each spring loaded actuator mechanism 60 with the other spring loaded actuator mechanisms 60 is precluded.
  • the spring loaded actuator mechanisms 60 comprise subassemblies containing one or more springs and other components and the like.
  • the spring loaded actuator mechanisms comprise assembled individual components within the housing 30 and supported by the housing 30 and/or the substantially rigid main frame member 40.
  • Cartridge type spring loaded actuator mechanisms 60 are well known and can be found in various prior art patent documents such as United States Patent No. 2,854,745 , the teachings of which are incorporated herein by reference.
  • Each spring loaded actuator mechanism 60 has a carriage member 66 that is movable between a rearward position, as indicated by arrow "A” in Figure 9 , and a forward position, as indicated by arrow “B” in Figure 10 , and a trigger member 68 movable between a rest position, a forward triggering position, as is indicated by arrow “C” in Figure 9 , and a rearward triggering position, as is indicated by arrow “D” in Figure 9 .
  • the carriage member 66 is moved to its rearward position by movement of the trigger member 68 to its rearward triggering position and the carriage member 66 is moved to its forward position by movement of the trigger member 68 to its forward triggering position.
  • Each trigger member 68 comprises a cam follower portion 68p that engages a cooperating cam surface 92 on the annular collar member 90. Further, each trigger member 68 is mounted for longitudinal sliding movement over a short distance, within the associated spring loaded actuator mechanism 60.
  • the spring loaded actuator mechanisms 60 are substantially straight along their length. Each spring loaded actuator mechanism 60 has an elongate substantially straight slot 62 therein. As the carriage member 66 travels along its spring loaded actuator mechanism 60, a portion of the carriage member 66 rides along the elongate slot 62 in the spring loaded actuator mechanism 60.
  • the multi-bit tool 20 also comprises a plurality of bit assemblies 70 within the substantially annular housing 30.
  • Each bit assembly 70 has a tool bit 72 at a front end and is operatively mounted within the housing 30 for movement by the actuator mechanism 60 between a retracted configuration corresponding to the rearward position of the carriage member 66, and a forwardly extended in-use configuration corresponding to the forward position of the carriage member 66. In the forwardly extended in-use configuration, the bit assembly 70 is positioned such that the tool bit 72 extends outwardly from the housing 30 through the opening 36 of the bit chuck 34.
  • each the tool bit 72 is substantially cylindrically shaped, in order to accommodate the passage of bits 72 past the tapered front end 47 of the central core 46.
  • Each bit assembly is operatively connected to the carriage member 66 on a corresponding spring loaded mechanism 80 for co-operative movement therewith.
  • the corresponding spring loaded actuator mechanism 60 is retained substantially in its correct form by the substantially rigid main frame member 40.
  • the multi-bit tool 20 further comprises an annular collar member 90 mounted in rotatable relation on the housing 30.
  • the annular collar member 90 comprises a ridged outer ring 90a and an internal cam ring 90b that are secured one to the other for co-rotation around the housing 30. More specifically, the internal cam ring 90b fits over the five arcuate plates 37p in reasonably close fitting but freely rotatable relation.
  • the internal cam ring 90b has a cam surface 92 that engages the trigger members 68 of the spring loaded actuator mechanisms 60 as the annular collar member 90 is rotated around the housing 30 about the longitudinal axis "L", to thereby movable the trigger members 68 between their rest positions, their forward triggering positions and their rearward triggering positions.
  • the cartridge type spring loaded actuator mechanisms 60 are within and are supported by a stable body to ensure that there is no twisting of the cartridge type spring loaded actuator mechanisms 60 that would otherwise distort the path of the slot 62 in the actuator mechanisms 60. Accordingly, the ready and consistent operation of the cartridge type spring loaded actuator mechanisms 60 is readily achieved.
  • the present invention comprises a multi-implement apparatus that could be a toy that functions in an analogous manner to the multi-bit tool 20 as described.
  • the present invention provides a multi-bit tool having spring loaded actuation mechanisms, wherein the jamming of the tool bit assemblies and the spring loaded actuation mechanisms is significantly reduced, and perhaps almost eliminated, and which multi-bit tool is more ergonomic and therefore easier to use than prior art multi-bit tools, all of which features are unknown in the prior art.
  • a multi-bit tool comprising: a substantially annular housing having a central interior cavity and a bit chuck with a bit-receiving opening, and defining a longitudinal axis; a substantially rigid main frame member having a front end and a back end, wherein said housing and said substantially rigid main frame member are structurally interconnected one to the other such that said substantially rigid main frame member precludes significant torsional deformation of said housing; a plurality of spring loaded actuator mechanisms disposed within the interior cavity of said housing; wherein each said spring loaded actuator mechanism has a carriage member movable between a rearward position and a forward position, and a trigger member movable between a rest position, a forward triggering position and a rearward triggering position, and wherein said carriage member is moved to its rearward position by movement of said
  • Said plurality of spring loaded actuator mechanisms may be carried in rigidly retained relation by said substantially rigid main frame member within the interior cavity of said housing.
  • Said substantially rigid main frame member may be retained within the interior cavity of said housing.
  • Said substantially rigid main frame member may be disposed within said housing to be generally aligned along said longitudinal axis.
  • Said substantially rigid main frame member may define a plurality of longitudinal channels.
  • Each spring loaded actuator mechanism may be mounted in rigidly retained relation within one channel of said substantially rigid main frame member.
  • Said substantially rigid main frame member may be disposed within said housing such that each of said plurality of longitudinal channels is generally aligned along said longitudinal axis.
  • Said plurality of spring loaded actuator mechanisms may be mounted within said substantially rigid main frame member such that contact of each spring loaded actuator mechanism with the other spring loaded actuator mechanisms is precluded.
  • the spring loaded actuator mechanisms may comprise cartridges.
  • Said spring loaded actuator mechanisms may be substantially straight.
  • Each said spring loaded actuator mechanism may have an elongate slot therein, and said carriage member may travel along said slot in said spring loaded actuator mechanism.
  • Said slot may be substantially straight.
  • Said substantially rigid main frame member may have a front end and a back end.
  • Said substantially rigid main frame member may comprise a plurality of actuator separators extending outwardly from said longitudinal axis.
  • Said plurality of actuator separators may extend radially outwardly from said longitudinal axis.
  • Said substantially rigid main frame member may further comprise a central core wherein said plurality of actuator separators extend radially outwardly from said central core. Said plurality of actuator separators may define a maximum height outwardly from said central core.
  • Each said actuator separator may comprise a proximal wall portion connected to said central core and a distal wall portion connected to said proximal wall portion. Each said proximal wall portion may terminate prior to said distal wall portion forwardly along said longitudinal axis, thereby defining an open space immediately forward of said proximal wall portion.
  • Said substantially annular housing may comprise a forward cone portion and a central handle portion secured one to the other. Said forward cone portion and said central handle portion may be secured one to the other in selectively separable relation.
  • Each said proximal wall portion may terminate prior to said distal wall portion forwardly along said longitudinal axis, thereby defining an open space immediately forward of said proximal wall portion.
  • Each said proximal wall portion of said substantially rigid main frame member may connect to said forward cone portion of said substantially annular housing.
  • Said central core may extend forwardly along said longitudinal axis past the front of said proximal wall portions.
  • Said central core may be tapered at its front end.
  • Said substantially rigid main frame member may be made from metal.
  • the multi-bit tool may further comprise an annular collar member mounted in rotatable relation on said housing, and having a cam surface that engages the trigger members of said spring loaded actuator mechanisms as said annular collar member is rotated around said housing about said longitudinal axis, to thereby movable said trigger members between their rest positions, their forward triggering positions and their rearward triggering positions.
  • Each said tool bit may be substantially cylindrically shaped.
  • Said substantially annular housing and said substantially rigid main frame member may each be separate and distinct pieces.
  • the ratio of said maximum height of said plurality of actuator separators to the outside diameter of said central core of said substantially rigid main frame member may be greater than 1.5: 1.
  • Said proximal wall portion may comprise, in cross-section, a reduced waist portion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Gripping On Spindles (AREA)

Claims (15)

  1. Outil à embouts multiples (20) comprenant :
    un boîtier essentiellement annulaire (30) ayant une cavité interne centrale (32) et un mandrin d'embout (34) doté d'une ouverture de réception d'embout (36), et définissant un axe longitudinal (L) ;
    un élément de cadre principal (40) essentiellement rigide ayant une extrémité avant (42) et une extrémité arrière (44) ;
    une pluralité de mécanismes d'actionnement à ressort (60) supportés dans une relation de retenue rigide par ledit élément de cadre principal essentiellement rigide (40) dans la cavité interne (32) dudit boîtier (30) ;
    dans lequel chacun desdits mécanismes d'actionnement à ressort (60) a un élément de support (66) pouvant se déplacer entre une position arrière et une position avant, et un élément de déclenchement (68) pouvant se déplacer entre une position de repos, une position de déclenchement vers l'avant et une position de déclenchement vers l'arrière, et dans lequel ledit élément de support (66) est déplacé vers sa position arrière par déplacement dudit élément de déclenchement (68) vers sa position de déclenchement vers l'arrière et ledit élément de support (66) est déplacé vers sa position avant par déplacement dudit élément de déclenchement (68) vers sa position de déclenchement vers l'avant ; et
    une pluralité d'ensembles embouts (70), où chaque ensemble embout a un embout d'outil (72) au niveau d'une extrémité avant et est monté de manière fonctionnelle à l'intérieur dudit boîtier (30) pour être déplacé par ledit mécanisme d'actionnement (60) entre une configuration rétractée correspondant à la position arrière de l'élément de support (66) et une configuration déployée vers l'avant en l'utilisation correspondant à la position avant de l'élément de support (66) et où ledit ensemble embout (70) est positionné de sorte que ledit embout d'outil (72) s'étende vers l'extérieur à partir dudit boîtier (30) à travers ladite ouverture (36) dudit mandrin d'embout (34) ;
    dans lequel chaque ensemble embout (70) est relié de manière fonctionnelle à l'élément de support (66) sur un mécanisme à ressort correspondant (60) pour un déplacement coopératif avec celui-ci ; et,
    dans lequel, en utilisation, à mesure que chaque élément de support (66) se déplace entre sa position arrière et sa position avant, le mécanisme d'actionnement à ressort correspondant (60) est retenu essentiellement sous sa forme correcte par ledit élément de cadre principal (40) essentiellement rigide.
  2. Outil à embouts multiples de la revendication 1, dans lequel ledit boîtier et ledit élément de cadre principal essentiellement rigide sont reliés de manière structurelle l'un à l'autre de sorte que ledit élément de cadre principal essentiellement rigide empêche une déformation significative par torsion dudit boîtier.
  3. Outil à embouts multiples de la revendication 2, dans lequel ladite pluralité de mécanismes d'actionnement à ressort sont supportés dans une relation de retenue rigide par ledit élément de cadre principal essentiellement rigide à l'intérieur de la cavité interne dudit boîtier.
  4. Outil à embouts multiples de la revendication 3, dans lequel ledit élément de cadre principal essentiellement rigide est retenu à l'intérieur de la cavité interne dudit boîtier.
  5. Outil à embouts multiples de la revendication 4, dans lequel ledit élément de cadre principal essentiellement rigide est disposé à l'intérieur dudit boîtier pour être globalement aligné le long dudit axe longitudinal.
  6. Outil à embouts multiples de la revendication 5, dans lequel ledit élément de cadre principal essentiellement rigide définit une pluralité de canaux longitudinaux (41).
  7. Outil à embouts multiples de la revendication 6, dans lequel chaque mécanisme d'actionnement à ressort est monté dans une relation de retenue rigide à l'intérieur d'un canal dudit élément de cadre principal essentiellement rigide.
  8. Outil à embouts multiples de la revendication 1, dans lequel ladite pluralité de mécanismes d'actionnement à ressort sont montés à l'intérieur dudit élément de cadre principal essentiellement rigide de sorte que le contact entre chaque mécanisme d'actionnement à ressort et les autres mécanismes d'actionnement à ressort soit empêché.
  9. Outil à embouts multiples de la revendication 1, dans lequel les mécanismes d'actionnement à ressort comprennent des cartouches.
  10. Outil à embouts multiples de la revendication 9, dans lequel lesdits mécanismes d'actionnement à ressort sont essentiellement droits.
  11. Outil à embouts multiples de la revendication 1, dans lequel ledit élément de cadre principal essentiellement rigide comprend une pluralité de séparateurs d'actionneur (43) s'étendant vers l'extérieur à partir dudit axe longitudinal.
  12. Outil à embouts multiples de la revendication 11, dans lequel ladite pluralité de séparateurs d'actionneur s'étendent radialement vers l'extérieur à partir dudit axe longitudinal.
  13. Outil à embouts multiples de la revendication 12, dans lequel ledit élément de cadre principal essentiellement rigide comprend en outre un noyau central (46) et dans lequel ladite pluralité de séparateurs d'actionneur s'étend radialement vers l'extérieur à partir dudit noyau central.
  14. Outil à embouts multiples de la revendication 1, comprenant en outre un élément de collier annulaire (90) monté en rotation sur ledit boîtier, et ayant une surface de came (92) qui s'engage avec les éléments de déclenchement desdits mécanismes d'actionnement à ressort à mesure que ledit élément de collier annulaire est mis en rotation autour dudit boîtier autour dudit axe longitudinal, pour déplacer ainsi lesdits éléments de déclenchement entre leurs positions de repos, leurs positions de déclenchement vers l'avant et leurs positions de déclenchement vers l'arrière.
  15. Outil à embouts multiples de la revendication 1, dans lequel ledit boîtier essentiellement annulaire et ledit élément de cadre principal essentiellement rigide sont chacun des pièces séparées et distinctes.
EP09852688.2A 2009-12-29 2009-12-29 Outil à multiples embouts ayant des mécanismes d'actionnement à ressort et un cadre structurel rigide Active EP2519386B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2009/001880 WO2011079368A1 (fr) 2009-12-29 2009-12-29 Outil à multiples embouts ayant des mécanismes d'actionnement à ressort et un cadre structurel rigide

Publications (3)

Publication Number Publication Date
EP2519386A1 EP2519386A1 (fr) 2012-11-07
EP2519386A4 EP2519386A4 (fr) 2015-02-25
EP2519386B1 true EP2519386B1 (fr) 2017-07-19

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WO (1) WO2011079368A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3747602B1 (fr) 2013-10-28 2023-06-28 Retract-A-Bit Inc. Outil à main à bouts multiples

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750729A (en) * 1971-09-13 1973-08-07 R Lemieux Multiple driver tool
CA2061648C (fr) * 1992-02-21 1994-12-13 Albert Koehler Tournevis
JP2617698B2 (ja) * 1995-03-29 1997-06-04 新潟日本電気株式会社 ドライバ
US6205893B1 (en) * 1999-08-03 2001-03-27 Marushin Hong Kong Limited Screwdriver pen
CA2353911C (fr) * 2000-07-20 2003-07-08 Fern Beauchamp Mandrin a outils rapportes multiples
CA2585256C (fr) * 2003-11-28 2009-06-16 Dragonfire Group Holdings Limited Tournevis multi-embouts
CA2499790A1 (fr) * 2005-03-03 2006-09-03 Kinpack Polyethylene Ltd. Tournevis multilame
US7275466B2 (en) * 2005-03-11 2007-10-02 Duron Plastics Limited Multiple-bit driver with spring-loaded actuation

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EP2519386A4 (fr) 2015-02-25
WO2011079368A1 (fr) 2011-07-07
EP2519386A1 (fr) 2012-11-07

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