EP2828038B1 - Screwdriver system having a plurality of handles equipped with a torque limitation device and screw driver inserts that can be coupled thereto - Google Patents

Screwdriver system having a plurality of handles equipped with a torque limitation device and screw driver inserts that can be coupled thereto Download PDF

Info

Publication number
EP2828038B1
EP2828038B1 EP13709428.0A EP13709428A EP2828038B1 EP 2828038 B1 EP2828038 B1 EP 2828038B1 EP 13709428 A EP13709428 A EP 13709428A EP 2828038 B1 EP2828038 B1 EP 2828038B1
Authority
EP
European Patent Office
Prior art keywords
coupling
profile
torque
screwing
profiles
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.)
Active
Application number
EP13709428.0A
Other languages
German (de)
French (fr)
Other versions
EP2828038A2 (en
Inventor
Michael Abel
Martin Strauch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wera Werk Hermann Werner GmbH and Co KG
Original Assignee
Wera Werk Hermann Werner GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wera Werk Hermann Werner GmbH and Co KG filed Critical Wera Werk Hermann Werner GmbH and Co KG
Publication of EP2828038A2 publication Critical patent/EP2828038A2/en
Application granted granted Critical
Publication of EP2828038B1 publication Critical patent/EP2828038B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/56—Spanner sets
    • 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
    • B25B15/02—Screwdrivers operated by rotating the handle
    • 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
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool
    • 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
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0042—Connection means between screwdriver handle and screwdriver shaft
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • 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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means

Definitions

  • the invention relates to a sterwerkmaschinesystem with a plurality of fferantriebs instituten, each having a set to a fixed release torque torque limiting device, and with a plurality of fferabretes instituten that a fferabretesprofil for torque-transmitting attack on a corresponding counter-profile of a screw head, and a coupling profile for torque transmitting Have coupling to a coupling counter profile of the screw drive elements.
  • the invention also relates to the associated ringabreteselement and the associated ringantriebselement.
  • Wrenching tool systems of the type described above are known in the art. They consist of a handle which has a torque limiting device in its interior, so that only a maximum of the triggering torque can be transmitted to a fferabtriebsschaft.
  • the fferabretesschaft has a profile opening into which a coupling profile of a screwdriver bit is inserted.
  • various standardized coupling profiles are known, for example. 1/4 "hexagonal profile, 1/8" hexagonal profile, etc.
  • Screws with a small shaft diameter have a counter profile with a small wrench size.
  • Bolts with larger shank diameters have a counter profile with a larger spanner size.
  • such a size relationship exists between the threaded shaft diameters of screws and the key widths of the screwing tool entry opening of the screw head.
  • the fferantriebsetti are equipped so that they have different, fixed set release torques.
  • the invention has for its object to secure a generic screwing against misuse.
  • the coupling profiles and the mating coupling profiles are individualized such that the fferantriebsetti can be coupled only with their functionally associated ringabtriebs emulaten, but not with them not functionally associated ringabretes emulaten.
  • There are at least two groups of power take-off elements for example a first group with ringabretesprofilen small wrench size and a second group with fferabretesprofilen a larger spanner size.
  • the screw drive elements belonging to the first group have a first coupling profile.
  • the screw drive elements belonging to the second group have a second coupling profile.
  • the coupling profiles of the first and second groups differ from each other.
  • the system preferably also has third screw drive elements, or a corresponding third group of screw drive elements, which in turn comprise one or more fferabtriebsprofile a certain size, with such an individualization is made that third coupling profiles can only be combined with third coupling counter profiles to transmit torque.
  • the coupling profiles are individualized by different cross-sectional ground plans. This can also be star-shaped or regular polygonal surfaces, but also round sections having surfaces.
  • the then preferably cylindrical formed coupling profiles can be inserted into profile openings of the associated fferantriebsiatas.
  • the first, second, third, etc. coupling profiles differ from one another in such a way that they can only be plugged in to transmit their torque in the insertion openings belonging to them.
  • Coupling profiles with a small maximum diagonal dimension can indeed be plugged into coupling openings with a larger diagonal dimension.
  • these coupling profile openings have a minimum diagonal dimension, which is greater than the maximum diagonal dimension of the coupling profile, so that no torque transmission is possible.
  • the fferabretesetti no longer need to be firmly connected to the fferantriebs instituten to avoid that an improperly high torque is applied by a mis-fitting on a screwdriver bit.
  • the coupling profiles can be polygonal cylinder.
  • the cross-sectional area of the polygonal cylinders can be regular.
  • the polygonal surface is in particular a square, a pentagon or a hexagon.
  • the cross-sectional areas of the respective coupling profiles can be approximately the same size.
  • the associated negative feedback profiles are then formed by sleeves, so Mehrkanthggsen, in which the polygonal cylinder can be inserted and are held by suitable locking means.
  • the outline of the cylindrical coupling profiles can also be a star shape, the cavity of the sleeve then has a corresponding negative cross-sectional contour.
  • the screwing tool system according to the invention is preferably used in machine parts, in particular in cutting steel holders, in which a cutting steel on the holder can be fastened with a fastening screw. Such cutting steels are used in particular on lathes. Also suitable are insert plate holders which have a clamping claw which holds a turning plate in the holder.
  • the clamping screw must be tightened with a certain torque.
  • these screwdrivers have a torque limiter set to a fixed firing torque and a driven blade with a screwdriving profile that is firmly connected to the handle.
  • this is a screwdriver bit or a short blade with finger attack zones.
  • the screwdriver bit has a fferabretesprofil at one end of the blade and a coupling profile at the other end of the blade.
  • the finger attack zone which may be formed by a radially projecting projection, in particular in the form of a flag, which is rotatably connected to the blade.
  • the fferabreteselement may also be only a steel blade, which forms the coupling counter profile with its one end and the fferabretesprofil with its other end.
  • the two ends may have profiles, in particular cylinder-like profiles with mutually different ground plan.
  • It can be provided a Aufsteck- handle, which can be placed on the coupling profile of the screwdriver blade, so that it can be operated without the fferantriebselement.
  • the belonging to different groups, designed as a blade, in particular short blade bobabrete may have a mutually same shank cross-section, so that an auxiliary tool having a corresponding hollow profile, on blades that belong to different groups, can be placed.
  • the coupling profile is individualized in such a way that it can only be coupled with a coupling counter profile of a screw drive element which is set to the maximum release torque permissible for the screw drive element.
  • a screw drive element which is set to the maximum release torque permissible for the screw drive element.
  • the invention relates to several groups, each with one or more a coupling profile having fferabtriebs emulaten, wherein the group also includes one or more, each having a counter coupling profile having sterantriebs emulate. It is essential that the coupling profiles and coupling counter profiles are unique in groups, so that in each case only coupling profiles of a group with the coupling counter profile of the own group, but not with a coupling counter profile of another group can be coupled. The assignment is thus alternately unique.
  • the Figures 1a - 1c show the lower portion of a screwdriver handle with a torque limiter, as shown in the FIG. 16 is shown.
  • the screwdriver handles 11 form screw drive elements 1a, 1b, 1c, which belong to a respective group a, b, c.
  • Each of the three screw drive elements 1a, 1b, 1c has a chuck 34 which has a polygonal cavity.
  • the polygonal cavities whose cross sections in the FIGS. 2a, 2b, 2c are shown, have different cross-sectional profiles from each other.
  • Each chuck 34 has an individual coupling counter profile 5a, 5b, 5c.
  • coupling counter-profile 5a has the shape of a regular hexagon and belongs to the fferantriebselement 1a, which in the FIG. 1a is shown, and whose torque limiter is set to 1.4 Nm.
  • coupling counter profile 5b has the shape of a regular square, so the shape of a square.
  • the associated fferantriebselement that in the FIG. 1b is set to a limit torque of 2.0 Nm.
  • the Figure 2c shows a coupling counter profile 5c in the form of a regular pentagon.
  • the associated ringantriebselement 1 c, in the Figure 1c is set to a limit torque of 3.0 Nm.
  • FIG. 1a With the in the FIG. 1a, 1b or 1c shown erantriebselement can be actuated a plurality of each belonging to a group bobabtriebs instituten.
  • FIG. 3a illustrated screwing tool 2a has a coupling profile 4a, which cooperates with the coupling counter profile 5a such that a torque can be transmitted.
  • the coupling profile 4a is a hexagon, which fits into the hexagonal opening 5a of the chuck 34 of the screwdriver handle 1a.
  • the blade 45 is inserted in a plastic handle 42, which has finger attack zones 41. The latter are formed as projections.
  • the end of the blade 45 has a fferabretesprofil 3a, which may be formed as a hexagonal profile. Not shown, belonging to the same group of screw driven elements 2a have the same coupling profile 4a, but a differently shaped fferabretesprofil 3a, for example in the form of a Torx profile.
  • FIGS. 3b and 3c shown erabtriebs emulate 2b and 2c substantially correspond to those in the FIG. 3a illustrated sterabreteselement. However, they differ with regard to the coupling profile 4b.
  • the coupling profile 4b is a rectangular cylinder, in particular a square cylinder, which fits into the opening 5b of the chuck 34.
  • the FIG. 3b represents a group of fferabretes instituten 2b, wherein the group members have the same coupling profile 4b, but different erabretesprofile 3b.
  • erabtriebselement 2c has a coupling profile 4c, which is a pentagonal cylinder, which can be inserted into the pentagonal opening 5c of the chuck 34.
  • a coupling profile 4c which is a pentagonal cylinder, which can be inserted into the pentagonal opening 5c of the chuck 34.
  • group members not shown for the sake of clarity with the same coupling profile 4c, but different from each other
  • FIGS. 2a-2c or 4a - 4c coupling profiles shown or coupling counter profiles are designed so that they can only be mated together.
  • hexagonal cavity fits only in the FIG. 4a illustrated profile.
  • square cavity fits only in the FIG. 4b shown profile, and in the pentagonal cavity shown in Figure 2c fits only in the Figure 4c illustrated profile.
  • a second embodiment of the invention show the FIGS. 5 to 8 .
  • FIG. 5 shows a handle that forms a ringantriebselement 1.
  • There are a total of three such ringantriebside 1 are provided, which differ substantially only by the height of the fixed torque and the cross-sectional contour of the cavity of the chuck 34.
  • the torque limiting device shows the FIG. 14 ,
  • FIG. 6a and 6c show the coupling counter profiles 5, wherein in the FIG. 6a Coupling counter profile 5a shown again is a regular hexagon. That in the FIG. 6b shown negative feedback profile 5b is a square, and that in the FIG. 6c shown negative feedback profile 5c is a regular pentagon.
  • FIGS. 7a-7c show the corresponding ringabtriebs institute 2a - 2c, also here for the sake of clarity, only one element of a group is reproduced, the members of a group have a gleichgestaltetes coupling profile 4a, 4b, 4c, wherein the coupling profile 4a is formed as a hexagon and in the recess 5a fits, the coupling profile 4b is formed as a square and fits into the opening 5b, and the coupling profile 14 is formed as a pentagon and fits into the opening 5c.
  • the sortedabretelement 2a, 2b, 2c is designed here as a steel blade, which carries at one end a fferabretesprofil 3a, 3b, 3c and at its other end the coupling profile 4a - 4c.
  • FIG. 8 shows an example of a handle 44.
  • This handle is in the FIGS. 7a-7c
  • the handle forms finger engagement zones 41 and has a profile opening, which is adapted to the respective coupling profile 4a, 4b, 4c, so that the handle on the coupling profile 4a, 4b, 4c can be plugged.
  • the screw driven element 4a, 4b, 4c can then be used as a screwing tool.
  • FIGS. 9a, 9b, 9c each show a ringantriebselement 1, wherein the ringantriebs institute, the torque limiting device according to FIG. 16 have substantially differ only by the set torque and by the cross-sectional contour of the coupling counter profile 5a, 5b, 5c.
  • the individual screw drive elements can be set for example to torques of 1,0,1,5 or 2,0 Nm.
  • all the negative feedback profiles 5a, 5b, 5c each have the cross-sectional shape of a regular hexagon.
  • the hexagonal profiles differ in their area or at the distance between two opposite polygonal edges.
  • associated output elements 2a, 2b, 2c consist of hexagonal blades 45 with individual ringabtriebsprofilen 3a, 3b, 3c.
  • the blades 45 form coupling profiles 4a, 4b, 4c, which can be inserted into the negative feedback profiles 5a, 5b, 5c.
  • a handle 42 can be plugged onto each blade.
  • the plastic handle 42 has a blind opening, with a, the coupling profile 4a, 4b, 4c corresponding polygonal hole. This blind bore is in cross section in the FIG. 12 shown.
  • FIGS. 13a-13c show a fourth embodiment of fferabtriebsprofilen 3a - 3c, which are not in terms of the blade design of the in the Figures 10 -10c Distinguish shown power take-off elements. Only the handle 42 has a differently shaped opening. This is one in the FIG. 15 shown in section passage opening into which the respective blade 45 can be inserted.
  • the screwdriver according to the FIG. 16 consists of a handle 11 and a blade 12.
  • the handle 1 consists of two plastic parts 13, 14. It is a front handle portion 13, the end face of the blade 12 springs, and a rear handle portion 14, which forms a dome 15, which lies on the side of the handle 11 facing away from the blade.
  • the blade 12 is rotatable relative to the handle 11 when a tripping torque is exceeded.
  • the handle has in an inner cavity 19 but a locking mechanism which forms a torque limiting arrangement, with which by turning the handle 11 on the blade 12 a torque can be applied.
  • the blade turns in the handle. In the opposite direction significantly higher torques can be transmitted.
  • the front handle part 13 forms an internal thread 16.
  • an external thread 17 of a threaded flange of the rear handle 14 can be screwed.
  • the front handle part 13 occurs to form a parting plane 18 in touching contact with the rear handle part 14th
  • This plastic part forms a toothed part 20.
  • the tooth part 20 has a toothing 21 with sawtooth-shaped teeth.
  • the tooth part 20 is rotatably connected to the blade 12.
  • the cavity 19 of the rear handle portion 14 has not shown, extending in the axial direction grooves or ribs. In the grooves of the wall of the cavity 19 engage ribs, not shown, of a counter-tooth part 22 a.
  • the counter-tooth part 22 has a toothing 23 which corresponds to the toothing 21.
  • On the rear end face of the counter-tooth part 22 are spacers 24.
  • On the spacers 24, a helical compression spring 25 is supported, which is supported with its other end on the bottom of the cavity 19.
  • An end portion of the plastic-coated blade protrudes into the cavity of the helical compression spring 25. This end portion of the blade 12 extends through the sleeve-shaped counter tooth part 22nd
  • the rear handle part 14 forms a bearing wall 26, against which an annular collar 27 of the toothed part 20 is supported. With a bearing projection 28, the tooth part 20 is supported on an abutment 29 of the front grip part 13, so that it rests axially fixed in the handle 11. The tooth part 20 receives the blade 12. The blade 12 is stuck with its end in the up to the cavity of the compression spring 25 extending plastic part 20th
  • the release torque can be adjusted.
  • the blade 12 penetrates with play an axial cavity of the front handle portion 13th
  • the entire torque limiting arrangement is assigned to the blade.
  • the blade 12 is made of a hexagonal steel with a gradation. On this gradation, a circular metal disk 30 is supported. This metal disk 30 forms a bearing disk.
  • the tapered portion of the blade 12 receiving in itself is based on the rear wide side surface of the bearing plate 30 from a strong helical compression spring 25 with a rectangular winding profile. The clamping force of this helical compression spring 25 defines the limit torque at which the teeth of a toothing 23 and a counter toothing 21, which will be explained below, are disengaged.
  • the pointing away from the bearing plate 30 end of the helical compression spring 25 is inserted in a ring cavity, which is associated with a counter-tooth part 22.
  • the counter-tooth part 22 is made of plastic and has ribs on its outer wall.
  • the counter tooth part 22 forms saw teeth 23. These saw teeth 23 are located on the bottom of the annular groove on which the compression spring 25 is supported, opposite side. The teeth 23 engage in gaps of saw teeth 21 a tooth part 20 a.
  • the tooth part is also made of plastic. But it is rotatably and axially fixed to the blade 12 assigned. The force of the prestressed compression spring 25 presses the toothed part 20 against a washer 22 assigned to a threaded portion 31 of the blade 12. The washer 32 is held by a nut 33 which is screwed onto the threaded portion 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Description

Die Erfindung betrifft ein Schraubwerkzeugsystem mit einer Mehrzahl von Schraubantriebselementen, die jeweils eine auf ein festes Auslösedrehmoment eingestellte Drehmoment-Begrenzungseinrichtung aufweisen, und mit einer Mehrzahl von Schraubabtriebselementen, die ein Schraubabtriebsprofil zum drehmomentübertragenden Angriff an einem ein entsprechendes Gegenprofil eines Schraubenkopfes, und ein Kopplungsprofil zur drehmomentübertragenden Kopplung an ein Kopplungsgegenprofil eines der Schraubantriebselemente aufweisen.The invention relates to a Schraubwerkzeugsystem with a plurality of Schraubantriebselementen, each having a set to a fixed release torque torque limiting device, and with a plurality of Schraubabtriebselementen that a Schraubabtriebsprofil for torque-transmitting attack on a corresponding counter-profile of a screw head, and a coupling profile for torque transmitting Have coupling to a coupling counter profile of the screw drive elements.

Die Erfindung betrifft darüber hinaus das zugehörige Schraubabtriebselement und das zugehörige Schraubantriebselement.The invention also relates to the associated Schraubabtriebselement and the associated Schraubantriebselement.

Schraubwerkzeugsysteme der oben beschriebenen Art sind im Stand der Technik bekannt. Sie bestehen aus einem Handgriff, der in seinem Inneren eine Drehmoment-Begrenzungseinrichtung aufweist, so dass auf einen Schraubabtriebsschaft nur maximal das Auslösedrehmoment übertragen werden kann. Der Schraubabtriebsschaft besitzt eine Profilöffnung, in die ein Kopplungsprofil eines Schraubendrehereinsatzes einsteckbar ist. Beim Stand der Technik sind verschiedene standardisierte Kopplungsprofile bekannt, bspw. 1/4" Sechskantprofil, 1/8" Sechskantprofil usw.Wrenching tool systems of the type described above are known in the art. They consist of a handle which has a torque limiting device in its interior, so that only a maximum of the triggering torque can be transmitted to a Schraubabtriebsschaft. The Schraubabtriebsschaft has a profile opening into which a coupling profile of a screwdriver bit is inserted. In the prior art, various standardized coupling profiles are known, for example. 1/4 "hexagonal profile, 1/8" hexagonal profile, etc.

Ein mit einem Schraubabtriebselement kombiniertes Schraubantriebselement bildet einen Handgriff mit Schraubabtriebsprofil, das in ein Gegenprofil eines Schraubenkopfes einsteckbar ist. Schrauben mit geringem Schaftdurchmesser besitzen ein Gegenprofil mit einer geringen Schlüsselweite. Schrauben mit größeren Schaftdurchmessern besitzen ein Gegenprofil mit einer größeren Schlüsselweite. Im Allgemeinen besteht zwischen den Gewindeschaftdurchmessern von Schrauben und den Schlüsselweiten der Schraubwerkzeugeintrittsöffnung des Schraubenkopfes eine derartige Größenbeziehung. Die Schraubantriebselemente sind so ausgestattet, dass sie voneinander verschiedene, fest eingestellte Auslösedrehmomente aufweisen. Um zu vermeiden, dass Schraubantriebselemente mit einem großen Auslöseelement mit Schraubabtriebselementen kombiniert werden, die nur mit einem geringeren Drehmoment beaufschlagt werden dürfen, werden bei bekannten Schraubwerkzeugsystemen (siehe DE 10 2004 016 521 A1 ) die Schraubabtriebselemente fest mit den Schraubantriebselementen verbunden, so dass jeder Handgriff nur ein einziges Schraubabtriebsprofil aufweist.A combined with a Schraubabtriebselement Schraubantriebselement forms a handle with Schraubabtriebsprofil which can be inserted into a mating profile of a screw head. Screws with a small shaft diameter have a counter profile with a small wrench size. Bolts with larger shank diameters have a counter profile with a larger spanner size. Generally, such a size relationship exists between the threaded shaft diameters of screws and the key widths of the screwing tool entry opening of the screw head. The Schraubantriebselemente are equipped so that they have different, fixed set release torques. In order to avoid that Schraubantriebselemente be combined with a large trigger element with Schraubabtriebselementen that may be acted upon only with a lower torque, in known Schraubwerkzeugsystemen (see DE 10 2004 016 521 A1 ) the Schraubabtriebselemente firmly connected to the Schraubantriebselementen so that each handle has only a single Schraubabtriebsprofil.

Der Erfindung liegt die Aufgabe zugrunde, ein gattungsgemäßes Schraubwerkzeug gegen Fehlbedienung zu sichern.The invention has for its object to secure a generic screwing against misuse.

Gelöst wird die Aufgabe durch die in den Ansprüchen angegebene Erfindung. Zunächst und im Wesentlichen ist vorgesehen, dass die Kupplungsprofile und die Gegenkupplungsprofile derart individualisiert sind, dass die Schraubantriebselemente nur mit den ihnen funktionell zugeordneten Schraubabtriebselementen koppelbar sind, nicht jedoch mit ihnen nicht funktionell zugeordneten Schraubabtriebselementen. Es gibt zumindest zwei Gruppen von Schraubabtriebselementen, bspw. eine erste Gruppe mit Schraubabtriebsprofilen kleiner Schlüsselweite und eine zweite Gruppe mit Schraubabtriebsprofilen einer größeren Schlüsselweite. Die zu der ersten Gruppe gehörenden Schraubabtriebselemente besitzen ein erstes Kopplungsprofil. Die zur zweiten Gruppe gehörenden Schraubabtriebselemente besitzen ein zweites Kopplungsprofil. Die Kopplungsprofile der ersten und der zweiten Gruppe unterscheiden sich voneinander. Zu jeder der beiden Gruppen gibt es ein zugeordnetes Schraubantriebselement, das grundsätzlich einen Aufbau besitzen kann, wie es die DE 10 2004 016 521 A1 beschreibt. In entsprechender Weise unterscheiden sich dort die Kopplungsgegenprofile eines ersten Schraubantriebselementes und eines zweiten Schraubantriebselementes. Erfindungsgemäß ist sichergestellt, dass das Kopplungsgegenprofil eines ersten Schraubantriebselementes nur mit einem ersten Kopplungsprofil drehmomentübertragend koppelbar ist, nicht jedoch mit einem zweiten Kopplungsprofil. Selbiges gilt auch für das zweite Kopplungsgegenprofil, das nur mit einem zweiten Kopplungsprofil, nicht jedoch mit einem ersten Kopplungsprofil koppelbar ist. Das System besitzt vorzugsweise auch dritte Schraubantriebselemente, bzw. eine dazu gehörende dritte Gruppe von Schraubabtriebselementen, die wiederum ein oder mehrere Schraubabtriebsprofile einer bestimmten Größe umfassen, wobei eine derartige Individualisierung vorgenommen ist, dass dritte Kopplungsprofile nur mit dritten Kopplungsgegenprofilen drehmomentübertragend kombinierbar sind. In einer bevorzugten Ausgestaltung der Erfindung werden die Kopplungsprofile durch verschiedene Querschnittsgrundrissen individualisiert. Dies können auch sternförmige oder regelmäßige Mehrkantflächen, aber auch Rundabschnitte aufweisende Flächen sein. Die dann bevorzugt zylinderförmig ausgebildeten Kopplungsprofile können in Profilöffnungen des zugehörigen Schraubantriebselementes eingesteckt werden. Die ersten, zweiten, dritten etc. Kopplungsprofile unterscheiden sich dabei derartig voneinander, dass sie nur in die ihnen zugehörigen Einstecköffnungen drehmomentübertragend eingesteckt werden können. Kopplungsprofile mit einem geringen maximalen Diagonalmaß können zwar in Kopplungsöffnungen mit einem größeren Diagonalmaß eingesteckt werden. Diese Kopplungsprofilöffnungen haben aber ein minimales Diagonalmaß, welches größer ist, als das maximale Diagonalmaß des Kopplungsprofils, so dass keine Drehmomentübertragung möglich ist. Als Folge der erfindungsgemäßen Individualisierung der Kopplungsprofile und den zugehörigen Gegenkopplungsprofilen brauchen die Schraubabtriebselemente nicht mehr fest mit den Schraubantriebselementen verbunden zu sein, um zu vermeiden, dass durch eine Fehlbestückung auf einen Schraubendrehereinsatz ein unzulässig hohes Anzugsmoment aufgebracht wird. Die Kopplungsprofile können Mehrkantzylinder sein. Die Querschnittsfläche der Mehrkantzylinder kann regelmäßig sein. Bei der Mehrkantfläche handelt es sich insbesondere um einen Vierkant, einen Fünfkant oder einen Sechskant. Die Querschnittsflächen der jeweiligen Kopplungsprofile können in etwa gleich groß sein. Die zugehörigen Gegenkopplungsprofile werden dann von Hülsen, also Mehrkanthülsen, gebildet, in die die Mehrkantzylinder eingesteckt werden können und durch geeignete Rastmittel gehalten werden. Der Grundriss der zylinderförmigen Kopplungsprofile kann auch eine Sternform sein, die Höhlung der Hülse hat dann eine entsprechend negative Querschnittskontur. Das erfindungsgemäße Schraubwerkzeugsystem findet bevorzugt Anwendung bei Maschinenteilen, insbesondere bei Schneidstahlhaltern, bei denen mit einer Befestigungsschraube ein Schneidstahl am Halter befestigbar ist. Derartige Schneidstähle werden insbesondere an Drehbänken verwendet. In Betracht kommen auch Wendeplattenhalter, die eine Spannpratze aufweisen, die eine Wendeplatte im Halter hält. Die Spannschraube muss mit einem bestimmten Drehmoment angezogen werden. Es gibt Schneidstahlhalter bzw. Wendeplattenhalter unterschiedlicher Größe und Schneidstähle oder Schneidplatten unterschiedlicher Größe, wobei zu Schneidstahlhaltern verschiedener Größe verschieden große Befestigungsschrauben gehören, die jeweils nur mit einem individuellen maximalen Anzugsdrehmoment angezogen werden dürfen. Es ist üblich, diesen Schneidwerkzeughaltern oder auch den Verpackungen anderer, eine Verschraubung aufweisenden Gegenständen herstellerseitig Schraubwerkzeuge und insbesondere Schraubwerkzeuge mit Drehmoment-Begrenzungseinrichtung beizufügen. Um sicherzustellen, dass die Befestigungsschrauben nur mit dem zulässigen maximalen Anzugsmoment angezogen werden, besitzen diese Schraubwerkzeuge eine Drehmoment-Begrenzungseinrichtung, die auf ein festes Auslösedrehmoment eingestellt ist, und eine Abtriebsklinge mit Schraubabtriebsprofil, die fest mit dem Handgriff verbunden ist. Um die Verpackungsgröße zu minimieren, ist es von Vorteil, wenn dem Gegenstand, also insbesondere dem Schneidstahlhalter anstelle eines kompletten Schraubwerkzeuges lediglich ein Schraubwerkzeug mit Minimalfunktion beigefügt wird. Erfindungsgemäß handelt es sich dabei um einen Schraubendrehereinsatz bzw. um eine Kurzklinge mit Fingerangriffszonen. Der Schraubendrehereinsatz besitzt ein Schraubabtriebsprofil an einem Klingenende und ein Kopplungsprofil am anderen Klingenende. Zwischen den beiden Klingenenden befindet sich die Fingerangriffszone, die von einem radial abragenden Vorsprung, insbesondere in Form einer Fahne, ausgebildet sein kann, der drehfest mit der Klinge verbunden ist. Bei dem Schraubabtriebselement kann es sich auch lediglich um eine Stahlklinge handeln, die mit ihrem einen Ende das Kopplungsgegenprofil ausbildet und mit ihrem anderen Ende das Schraubabtriebsprofil. Die beiden Enden können Profile, insbesondere zylinderartige Profile mit voneinander verschiedenem Grundriss aufweisen. Es kann ein Aufsteck-Handgriff vorgesehen sein, der auf das Kopplungsprofil der Schraubendreherklinge aufgesetzt werden kann, so dass diese auch ohne das Schraubantriebselement betätigt werden kann. Die zu verschiedenen Gruppen gehörenden, als Klinge, insbesondere Kurzklinge ausgebildeten Schraubabtriebselemente können einen untereinander gleichen Schaftquerschnitt aufweisen, so dass ein Hilfswerkzeug, das ein entsprechendes Hohlprofil aufweist, auf Klingen, die zu unterschiedlichen Gruppen gehören, aufgesetzt werden kann. Erfindungsgemäß ist das Kopplungsprofil derart individualisiert, dass es nur mit einem Kopplungsgegenprofil eines Schraubantriebselementes koppelbar ist, welches auf das dem Schraubabtriebselement zulässige maximale Auslösedrehmoment eingestellt ist. Es sind bevorzugt ein oder mehrere Schraubantriebselemente vorgesehen, bei denen das feste Auslösedrehmoment nur mit besonderen Werkzeugen verändert werden kann, es also fest und von Hand unveränderbar eingestellt ist. Mit einem derartigen Schraubantriebselement können somit eine Vielzahl von Schraubantriebselementen betätigt werden, die aber zu einer bestimmten Gruppe gehören, die ein bestimmtes maximales Anzugsdrehmoment aufweisen dürfen.The object is achieved by the invention specified in the claims. First and foremost, it is provided that the coupling profiles and the mating coupling profiles are individualized such that the Schraubantriebselemente can be coupled only with their functionally associated Schraubabtriebselementen, but not with them not functionally associated Schraubabtriebselementen. There are at least two groups of power take-off elements, for example a first group with Schraubabtriebsprofilen small wrench size and a second group with Schraubabtriebsprofilen a larger spanner size. The screw drive elements belonging to the first group have a first coupling profile. The screw drive elements belonging to the second group have a second coupling profile. The coupling profiles of the first and second groups differ from each other. For each of the two groups, there is an associated Schraubantriebselement that basically can have a structure, as it DE 10 2004 016 521 A1 describes. In a similar way differ there the coupling counter profiles of a first screw drive element and a second screw drive element. According to the invention it is ensured that the coupling counter profile of a first screw drive element can be coupled to transmit torque only with a first coupling profile, but not with a second coupling profile. The same applies to the second coupling counter profile, which can be coupled only with a second coupling profile, but not with a first coupling profile. The system preferably also has third screw drive elements, or a corresponding third group of screw drive elements, which in turn comprise one or more Schraubabtriebsprofile a certain size, with such an individualization is made that third coupling profiles can only be combined with third coupling counter profiles to transmit torque. In a preferred embodiment of the invention, the coupling profiles are individualized by different cross-sectional ground plans. This can also be star-shaped or regular polygonal surfaces, but also round sections having surfaces. The then preferably cylindrical formed coupling profiles can be inserted into profile openings of the associated Schraubantriebselementes. The first, second, third, etc. coupling profiles differ from one another in such a way that they can only be plugged in to transmit their torque in the insertion openings belonging to them. Coupling profiles with a small maximum diagonal dimension can indeed be plugged into coupling openings with a larger diagonal dimension. However, these coupling profile openings have a minimum diagonal dimension, which is greater than the maximum diagonal dimension of the coupling profile, so that no torque transmission is possible. As a result of the individualization of the coupling profiles and the associated negative feedback profiles according to the invention, the Schraubabtriebselemente no longer need to be firmly connected to the Schraubantriebselementen to avoid that an improperly high torque is applied by a mis-fitting on a screwdriver bit. The coupling profiles can be polygonal cylinder. The cross-sectional area of the polygonal cylinders can be regular. The polygonal surface is in particular a square, a pentagon or a hexagon. The cross-sectional areas of the respective coupling profiles can be approximately the same size. The associated negative feedback profiles are then formed by sleeves, so Mehrkanthülsen, in which the polygonal cylinder can be inserted and are held by suitable locking means. The outline of the cylindrical coupling profiles can also be a star shape, the cavity of the sleeve then has a corresponding negative cross-sectional contour. The screwing tool system according to the invention is preferably used in machine parts, in particular in cutting steel holders, in which a cutting steel on the holder can be fastened with a fastening screw. Such cutting steels are used in particular on lathes. Also suitable are insert plate holders which have a clamping claw which holds a turning plate in the holder. The clamping screw must be tightened with a certain torque. There are cutting steel holder or indexable insert holder different sizes and cutting steel or cutting inserts of different sizes, with different sizes of cutting steel holders different sized mounting screws include, which may be tightened only with an individual maximum tightening torque. It is customary to attach screwing tools and in particular screwing tools with torque limiting means to these cutting tool holders or else to the packaging of other items having a screw connection on the manufacturer side. To ensure that the fastening screws are tightened only to the maximum permissible tightening torque, these screwdrivers have a torque limiter set to a fixed firing torque and a driven blade with a screwdriving profile that is firmly connected to the handle. In order to minimize the packaging size, it is advantageous if the object, ie in particular the cutting tool holder instead of a complete screwing tool only a screwing with minimum function is attached. According to the invention, this is a screwdriver bit or a short blade with finger attack zones. The screwdriver bit has a Schraubabtriebsprofil at one end of the blade and a coupling profile at the other end of the blade. Between the two blade ends is the finger attack zone, which may be formed by a radially projecting projection, in particular in the form of a flag, which is rotatably connected to the blade. The Schraubabtriebselement may also be only a steel blade, which forms the coupling counter profile with its one end and the Schraubabtriebsprofil with its other end. The two ends may have profiles, in particular cylinder-like profiles with mutually different ground plan. It can be provided a Aufsteck- handle, which can be placed on the coupling profile of the screwdriver blade, so that it can be operated without the Schraubantriebselement. The belonging to different groups, designed as a blade, in particular short blade Schraubabtriebselemente may have a mutually same shank cross-section, so that an auxiliary tool having a corresponding hollow profile, on blades that belong to different groups, can be placed. According to the invention, the coupling profile is individualized in such a way that it can only be coupled with a coupling counter profile of a screw drive element which is set to the maximum release torque permissible for the screw drive element. There are preferably one or more Schraubantriebselemente provided in which the fixed release torque can only be changed with special tools, so it is set fixed and unchangeable by hand. With such a screw drive element thus a plurality of Schraubantriebselementen can be actuated, but which belong to a particular group, which may have a certain maximum tightening torque.

Ganz allgemein betrifft die Erfindung mehrere Gruppen jeweils mit ein oder mehreren ein Kopplungsprofil aufweisenden Schraubabtriebselementen, wobei zur Gruppe auch ein oder mehrere, jeweils ein Kopplungsgegenprofil aufweisende Schraubantriebselemente gehören. Wesentlich ist, dass die Kopplungsprofile und Kopplungsgegenprofile gruppenweise eindeutig sind, so dass jeweils nur Kopplungsprofile einer Gruppe mit dem Kopplungsgegenprofil der eigenen Gruppe, nicht jedoch mit einem Kopplungsgegenprofil einer anderen Gruppe koppelbar sind. Die Zuordnung ist somit wechselweise eindeutig.More generally, the invention relates to several groups, each with one or more a coupling profile having Schraubabtriebselementen, wherein the group also includes one or more, each having a counter coupling profile having Schraubantriebselemente. It is essential that the coupling profiles and coupling counter profiles are unique in groups, so that in each case only coupling profiles of a group with the coupling counter profile of the own group, but not with a coupling counter profile of another group can be coupled. The assignment is thus alternately unique.

Die Erfindung wird nachfolgend anhand beigefügter Zeichnungen erläutert. Es zeigen:

Figuren 1a, 1b, 1c
drei äußerlich im Wesentlichen gleich ausgestaltete Schraubantriebselemente mit jeweils einem Futter, das ein individuelles Gegenkopplungsprofil besitzt,
Figuren 2a - 2b
den Querschnitt der Gegenkopplungsprofile der Schraubantriebselemente gemäß der Figuren 1a - 1c,
Figuren 3a - 3c
drei verschiedene Schraubabtriebselemente mit individuellen Kopplungsprofilen,
Figuren 4a - 4c
die Kopplungsprofile der Schraubabtriebselemente gemäß der Figuren 3a -3c,
Figur 5
ein Schraubantriebselement in einer anderen äußerlichen Gestalt,
Figuren 6a - 6c
Schraubantriebselemente gemäß Figur 5 in der Draufsicht auf das Kopplungsgegenprofil mit voneinander verschiedenen Gegenkopplungsprofilen 5a - 5c,
Figuren 7a - 7c
Schraubabtriebselemente mit einem Kopplungsprofil, welches jeweils zu den in den Figuren 6a - 6c dargestellten Gegenkopplungsprofilen 5a - 5c passt, mit strichpunktiert dargestelltem Handgriff, der auf das Kopplungsprofil 4a - 4 c aufsetzbar ist,
Figur 8
den in den Figuren 7a - 7c lediglich strichpunktiert dargestellten Handgriff zur Handbetätigung eines Schraubabtriebselementes gemäß der Figuren 7a - 7c,
Figuren 9a - 9c
als drittes Ausführungsbeispiel der Erfindung Schraubantriebselemente in Form von Handgriffen mit Futter, die jeweils voneinander verschiedene Kopplungsgegenprofile 5a - 5c aufweisen, und deren Drehmoment-Begrenzungseinrichtung voneinander verschiedene Grenzdrehmomente aufweist,
Figuren 10a - 10c
die zugehörigen Schraubabtriebselemente,
Figur 11
eine Schraubhandhabe zum Aufstecken auf das Schraubabtriebselement gemäß Figuren 10a -10c,
Figur 12
einen Schnitt gemäß der Linie XII in Figur 11,
Figuren 13a -13c
ein viertes Ausführungsbeispiel von Schraubabtriebselementen, die mit Schraubantriebselementen etwa dergestalt gemäß Figur 9a - 9c kombinierbar sind,
Figur 14
eine Draufsicht auf eine Handhabe, die mit einem Schraubabtriebselement gemäß der Figuren 13a - 13c kombinierbar ist,
Figur 15
einen Schnitt gemäß der Linie XV-XV in Figur 14,
Figur 16
den Schnitt durch ein Schraubwerkzeug gemäß Fig. 3 der DE 10 2004 016 521 A1 , wie es die Figuren 1a - 1c, sowie 9a - 9c betrifft, und
Figur 17
ein Schraubwerkzeug gemäß Figur 9 der DE 10 2004 016 521 A1 betreffend die Figur 5.
The invention will be explained with reference to the accompanying drawings. Show it:
FIGS. 1a, 1b, 1c
three externally substantially identically designed screw drive elements, each with a chuck that has an individual countercoupling profile,
Figures 2a - 2b
the cross section of the negative feedback profiles of the Schraubantriebselemente according to the Figures 1a - 1c .
FIGS. 3a-3c
three different power take-off elements with individual coupling profiles,
FIGS. 4a-4c
the coupling profiles of the Schraubabtriebselemente according to the Figures 3a -3c .
FIG. 5
a screw drive element in a different external shape,
Figures 6a - 6c
Screw drive elements according to FIG. 5 in the plan view of the coupling counter profile with mutually different negative feedback profiles 5a - 5c,
FIGS. 7a-7c
Schraubabtriebselemente with a coupling profile, which in each case to those in the Figures 6a - 6c shown negative feedback profiles 5a - 5c fits, with dash-dotted Pictured handle, which is placed on the coupling profile 4a - 4 c,
FIG. 8
in the FIGS. 7a-7c only shown in phantom handle for manual operation of a Schraubabtriebselementes according to the FIGS. 7a-7c .
FIGS. 9a-9c
as a third embodiment of the invention Schraubantriebselemente in the form of handles with chuck, each having mutually different coupling counter profiles 5a - 5c, and whose torque limiting device from each other has different limit torques,
FIGS. 10a-10c
the associated power take-off elements,
FIG. 11
a Schraubhandhabe for attachment to the Schraubabtriebselement according to Figures 10a-10c .
FIG. 12
a section along the line XII in FIG. 11 .
FIGS. 13a-13c
A fourth embodiment of Schraubabtriebselementen with screw drive according to such approximately FIGS. 9a-9c can be combined,
FIG. 14
a plan view of a handle, with a Schraubabtriebselement according to the FIGS. 13a-13c can be combined,
FIG. 15
a section along the line XV-XV in FIG. 14 .
FIG. 16
the section through a screw according to Fig. 3 of the DE 10 2004 016 521 A1 like it Figures 1a - 1c , and 9a - 9c, and
FIG. 17
a screwing according to FIG. 9 of the DE 10 2004 016 521 A1 concerning the FIG. 5 ,

Die Figuren 1a - 1c zeigen den unteren Abschnitt eines Schraubendrehergriffs mit einer Drehmomentbegrenzungseinrichtung, wie sie in der Figur 16 dargestellt ist. Die Schraubendrehergriffe 11 bilden Schraubantriebselemente 1a, 1b, 1c aus, die zu jeweils einer Gruppe a, b, c gehören. Jedes der drei Schraubantriebselemente 1a, 1b, 1c besitzt ein Futter 34, das eine Mehrkanthöhlung aufweist. Die Mehrkanthöhlungen, deren Querschnitte in den Figuren 2a, 2b, 2c dargestellt sind, besitzen voneinander verschiedene Querschnittsprofile. Jedes Futter 34 besitzt ein individuelles Kupplungsgegenprofil 5a, 5b, 5c.The Figures 1a - 1c show the lower portion of a screwdriver handle with a torque limiter, as shown in the FIG. 16 is shown. The screwdriver handles 11 form screw drive elements 1a, 1b, 1c, which belong to a respective group a, b, c. Each of the three screw drive elements 1a, 1b, 1c has a chuck 34 which has a polygonal cavity. The polygonal cavities whose cross sections in the FIGS. 2a, 2b, 2c are shown, have different cross-sectional profiles from each other. Each chuck 34 has an individual coupling counter profile 5a, 5b, 5c.

Das in der Figur 2a dargestellte Kupplungsgegenprofil 5a besitzt die Form eines regelmäßigen Sechskants und gehört zu dem Schraubantriebselement 1a, das in der Figur 1a dargestellt ist, und dessen Drehmomentbegrenzungseinrichtung auf 1,4 Nm eingestellt ist.That in the FIG. 2a shown coupling counter-profile 5a has the shape of a regular hexagon and belongs to the Schraubantriebselement 1a, which in the FIG. 1a is shown, and whose torque limiter is set to 1.4 Nm.

Das in der Figur 2b dargestellte Kopplungsgegenprofil 5b besitzt die Form eines regelmäßigen Vierecks, also die Form eines Quadrates. Das zugehörige Schraubantriebselement, das in der Figur 1b dargestellt ist, ist auf ein Grenzdrehmoment von 2,0 Nm eingestellt.That in the FIG. 2b shown coupling counter profile 5b has the shape of a regular square, so the shape of a square. The associated Schraubantriebselement that in the FIG. 1b is set to a limit torque of 2.0 Nm.

Die Figur 2c zeigt ein Kopplungsgegenprofil 5c in Form eines regelmäßigen Fünfecks. Das zugehörige Schraubantriebselement 1c, das in der Figur 1c dargestellt ist, ist auf ein Grenzdrehmoment von 3,0 Nm eingestellt.The Figure 2c shows a coupling counter profile 5c in the form of a regular pentagon. The associated Schraubantriebselement 1 c, in the Figure 1c is set to a limit torque of 3.0 Nm.

Mit dem in der Figur 1a, 1b oder 1c dargestellten Schraubantriebselement kann eine Vielzahl von jeweils zu einer Gruppe gehörenden Schraubabtriebselementen betätigt werden. Der Übersicht halber ist in den Figur 4a, 4b, 4c jeweils nur ein einziges Schraubabtriebselement der jeweiligen Gruppe dargestellt. Das in der Figur 3a dargestellte Schraubwerkzeug 2a besitzt ein Kopplungsprofil 4a, welches mit dem Kopplungsgegenprofil 5a derart zusammenwirkt, dass ein Drehmoment übertragen werden kann. Das Kopplungsprofil 4a ist ein Sechskant, der in die Sechskantöffnung 5a des Futters 34 des Schraubendrehergriffes 1a hineinpasst.With the in the FIG. 1a, 1b or 1c shown Schraubantriebselement can be actuated a plurality of each belonging to a group Schraubabtriebselementen. For the sake of clarity is in the Figure 4a, 4b, 4c in each case only a single screw driven element of the respective group shown. That in the FIG. 3a illustrated screwing tool 2a has a coupling profile 4a, which cooperates with the coupling counter profile 5a such that a torque can be transmitted. The coupling profile 4a is a hexagon, which fits into the hexagonal opening 5a of the chuck 34 of the screwdriver handle 1a.

Die Klinge 45 steckt in einem Kunststoffgriff 42, der Fingerangriffszonen 41 aufweist. Letztere sind als Vorsprünge ausgebildet. Das Ende der Klinge 45 besitzt ein Schraubabtriebsprofil 3a, welches als Sechskantprofil ausgebildet sein kann. Nicht dargestellte, zur selben Gruppe gehörende Schraubabtriebselemente 2a haben dasselbe Kopplungsprofil 4a, aber ein anders gestaltetes Schraubabtriebsprofil 3a, beispielsweise in Form eines Torx-Profils.The blade 45 is inserted in a plastic handle 42, which has finger attack zones 41. The latter are formed as projections. The end of the blade 45 has a Schraubabtriebsprofil 3a, which may be formed as a hexagonal profile. Not shown, belonging to the same group of screw driven elements 2a have the same coupling profile 4a, but a differently shaped Schraubabtriebsprofil 3a, for example in the form of a Torx profile.

Die in den Figuren 3b und 3c dargestellten Schraubabtriebselemente 2b und 2c entsprechen im Wesentlichen dem in der Figur 3a dargestellten Schraubabtriebselement. Sie unterscheiden sich aber hinsichtlich des Kopplungsprofils 4b.The in the FIGS. 3b and 3c shown Schraubabtriebselemente 2b and 2c substantially correspond to those in the FIG. 3a illustrated Schraubabtriebselement. However, they differ with regard to the coupling profile 4b.

Das Kopplungsprofil 4b ist ein Rechteckzylinder, insbesondere ein quadratischer Zylinder, der in die Öffnung 5b des Futters 34 passt. Die Figur 3b repräsentiert eine Gruppe von Schraubabtriebselementen 2b, wobei die Gruppenmitglieder dasselbe Kopplungsprofil 4b, aber unterschiedliche Schraubabtriebsprofile 3b aufweisen.The coupling profile 4b is a rectangular cylinder, in particular a square cylinder, which fits into the opening 5b of the chuck 34. The FIG. 3b represents a group of Schraubabtriebselementen 2b, wherein the group members have the same coupling profile 4b, but different Schraubabtriebsprofile 3b.

Das in der Figur 3c dargestellte Schraubabtriebselement 2c besitzt ein Kopplungsprofil 4c, welches ein Fünfkantzylinder ist, der in die Fünfkantöffnung 5c des Futters 34 eingesteckt werden kann. Auch hier gibt es eine Mehrzahl von der Übersicht halber nicht dargestellten Gruppenmitglieder mit demselben Kopplungsprofil 4c, aber voneinander verschiedenen Schraubabtriebsprofilen 3c.That in the Figure 3c illustrated Schraubabtriebselement 2c has a coupling profile 4c, which is a pentagonal cylinder, which can be inserted into the pentagonal opening 5c of the chuck 34. Again, there are a plurality of group members not shown for the sake of clarity with the same coupling profile 4c, but different from each other Schraubabtriebsprofilen 3c.

Die in den Figuren 2a - 2c bzw. 4a - 4c dargestellten Kopplungsprofile bzw. Kopplungsgegenprofile sind so ausgelegt, dass sie nur passend zusammengesteckt werden können. In die in Figur 2a dargestellte hexagonale Höhlung passt nur das in der Figur 4a dargestellte Profil. In die in Figur 2b dargestellte quadratische Höhlung passt nur das in Figur 4b dargestellte Profil, und in die in Figur 2c dargestellte pentagonale Höhlung passt nur das in der Figur 4c dargestellte Profil.The in the FIGS. 2a-2c or 4a - 4c coupling profiles shown or coupling counter profiles are designed so that they can only be mated together. In the in FIG. 2a shown hexagonal cavity fits only in the FIG. 4a illustrated profile. In the in FIG. 2b shown square cavity fits only in the FIG. 4b shown profile, and in the pentagonal cavity shown in Figure 2c fits only in the Figure 4c illustrated profile.

Ein zweites Ausführungsbeispiel der Erfindung zeigen die Figuren 5 - 8.A second embodiment of the invention show the FIGS. 5 to 8 ,

Die Figur 5 zeigt einen Griff, der ein Schraubantriebselement 1 ausbildet. Es sind insgesamt drei derartige Schraubantriebselemente 1 vorgesehen, die sich im Wesentlichen lediglich durch die Höhe des fest eingestellten Drehmoments und durch die Querschnittskontur der Höhlung des Futters 34 unterscheiden. Die Drehmomentbegrenzungseinrichtung zeigt die Figur 14.The FIG. 5 shows a handle that forms a Schraubantriebselement 1. There are a total of three such Schraubantriebselemente 1 are provided, which differ substantially only by the height of the fixed torque and the cross-sectional contour of the cavity of the chuck 34. The torque limiting device shows the FIG. 14 ,

Die Figuren 6a und 6c zeigen die Kopplungsgegenprofile 5, wobei das in der Figur 6a dargestellte Kopplungsgegenprofil 5a wiederum ein regelmäßiges Sechseck ist. Das in der Figur 6b dargestellte Gegenkopplungsprofil 5b ist ein Quadrat, und das in der Figur 6c dargestellte Gegenkopplungsprofil 5c ist ein regelmäßiges Fünfeck.The Figures 6a and 6c show the coupling counter profiles 5, wherein in the FIG. 6a Coupling counter profile 5a shown again is a regular hexagon. That in the FIG. 6b shown negative feedback profile 5b is a square, and that in the FIG. 6c shown negative feedback profile 5c is a regular pentagon.

Die Figuren 7a - 7c zeigen die entsprechenden Schraubabtriebselemente 2a - 2c, wobei auch hier der Übersicht halber lediglich ein Element einer Gruppe wiedergegeben ist, wobei die Mitglieder einer Gruppe ein gleichgestaltetes Kopplungsprofil 4a, 4b, 4c besitzen, wobei das Kopplungsprofil 4a als Sechskant ausgebildet ist und in die Ausnehmung 5a passt, das Kopplungsprofil 4b als Vierkant ausgebildet ist und in die Öffnung 5b passt, und das Kopplungsprofil 14 als Fünfkant ausgebildet ist und in die Öffnung 5c passt. Das Schraubabtriebselement 2a, 2b, 2c ist hier als Stahlklinge ausgebildet, die an einem Ende ein Schraubabtriebsprofil 3a, 3b, 3c trägt und an ihrem anderen Ende das Kopplungsprofil 4a - 4c.The FIGS. 7a-7c show the corresponding Schraubabtriebselemente 2a - 2c, also here for the sake of clarity, only one element of a group is reproduced, the members of a group have a gleichgestaltetes coupling profile 4a, 4b, 4c, wherein the coupling profile 4a is formed as a hexagon and in the recess 5a fits, the coupling profile 4b is formed as a square and fits into the opening 5b, and the coupling profile 14 is formed as a pentagon and fits into the opening 5c. The Schraubabtriebselement 2a, 2b, 2c is designed here as a steel blade, which carries at one end a Schraubabtriebsprofil 3a, 3b, 3c and at its other end the coupling profile 4a - 4c.

Die Figur 8 zeigt exemplarisch einen Handgriff 44. Dieser Handgriff ist in den Figuren 7a - 7c strichpunktiert dargestellt und zeigt die Verwendbarkeit des Handgriffs 44. Der Handgriff bildet Fingerangriffszonen 41 aus und besitzt eine Profilöffnung, die dem jeweiligen Kopplungsprofil 4a, 4b, 4c angepasst ist, so dass der Handgriff auf das Kopplungsprofil 4a, 4b, 4c aufsteckbar ist. Das Schraubabtriebselement 4a, 4b, 4c ist dann als Schraubwerkzeug benutzbar.The FIG. 8 shows an example of a handle 44. This handle is in the FIGS. 7a-7c The handle forms finger engagement zones 41 and has a profile opening, which is adapted to the respective coupling profile 4a, 4b, 4c, so that the handle on the coupling profile 4a, 4b, 4c can be plugged. The screw driven element 4a, 4b, 4c can then be used as a screwing tool.

Die Figuren 9a, 9b, 9c zeigen jeweils ein Schraubantriebselement 1, wobei sich die Schraubantriebselemente, die eine Drehmomentbegrenzungseinrichtung gemäß Figur 16 aufweisen, im Wesentlichen nur durch das eingestellte Drehmoment und durch die Querschnittskontur des Kopplungsgegenprofils 5a, 5b, 5c unterscheiden. Die einzelnen Schraubantriebselemente können beispielsweise auf Drehmomente von 1,0,1,5 oder 2,0 Nm eingestellt sein.The FIGS. 9a, 9b, 9c each show a Schraubantriebselement 1, wherein the Schraubantriebselemente, the torque limiting device according to FIG. 16 have substantially differ only by the set torque and by the cross-sectional contour of the coupling counter profile 5a, 5b, 5c. The individual screw drive elements can be set for example to torques of 1,0,1,5 or 2,0 Nm.

Bei diesem Ausführungsbeispiel haben alle Gegenkopplungsprofile 5a, 5b, 5c jeweils die Querschnittsgestalt eines regelmäßigen Sechskantes. Die Sechskantprofile unterscheiden sich jedoch in ihrer Fläche bzw. im Abstand zweier gegenüberliegender Mehrkantkanten.In this embodiment, all the negative feedback profiles 5a, 5b, 5c each have the cross-sectional shape of a regular hexagon. However, the hexagonal profiles differ in their area or at the distance between two opposite polygonal edges.

Die in Fig. 10a - 10b dargestellten zugehörigen Abtriebselemente 2a, 2b, 2c bestehen aus Sechskantklingen 45 mit individuellen Schraubabtriebsprofilen 3a, 3b, 3c. Die Klingen 45 bilden Kopplungsprofile 4a, 4b, 4c aus, die in die Gegenkopplungsprofile 5a, 5b, 5c eingesteckt werden können.In the Fig. 10a - 10b shown associated output elements 2a, 2b, 2c consist of hexagonal blades 45 with individual Schraubabtriebsprofilen 3a, 3b, 3c. The blades 45 form coupling profiles 4a, 4b, 4c, which can be inserted into the negative feedback profiles 5a, 5b, 5c.

Zusätzlich kann auf jede Klinge eine Handhabe 42 aufgesteckt werden. Hierzu besitzt die aus Kunststoff bestehende Handhabe 42 eine Sacköffnung, mit einem, dem Kopplungsprofil 4a, 4b, 4c entsprechenden Mehrkantloch. Diese Sackbohrung ist im Querschnitt in der Figur 12 dargestellt.In addition, a handle 42 can be plugged onto each blade. For this purpose, the plastic handle 42 has a blind opening, with a, the coupling profile 4a, 4b, 4c corresponding polygonal hole. This blind bore is in cross section in the FIG. 12 shown.

Die Figuren 13a - 13c zeigen ein viertes Ausführungsbeispiel von Schraubabtriebsprofilen 3a - 3c, die sich hinsichtlich der Klingengestaltung nicht von den in den Figuren 10 -10c dargestellten Schraubabtriebselementen unterscheiden. Lediglich die Handhabe 42 besitzt eine anders gestaltete Öffnung. Es handelt sich hier um eine in der Figur 15 im Schnitt dargestellte Durchgangsöffnung, in die die jeweilige Klinge 45 eingesteckt werden kann.The FIGS. 13a-13c show a fourth embodiment of Schraubabtriebsprofilen 3a - 3c, which are not in terms of the blade design of the in the Figures 10 -10c Distinguish shown power take-off elements. Only the handle 42 has a differently shaped opening. This is one in the FIG. 15 shown in section passage opening into which the respective blade 45 can be inserted.

Der Schraubendreher gemäß der Figur 16 besteht aus einem Griff 11 und einer Klinge 12. Der Griff 1 besteht aus zwei Kunststoffteilen 13, 14. Es handelt sich dabei um ein vorderes Griffteil 13, dessen Stirnfläche die Klinge 12 entspringt, und einem rückwärtigen Griffteil 14, welches eine Kuppe 15 ausbildet, die auf der der Klinge abgewandten Seite des Griffs 11 liegt.The screwdriver according to the FIG. 16 consists of a handle 11 and a blade 12. The handle 1 consists of two plastic parts 13, 14. It is a front handle portion 13, the end face of the blade 12 springs, and a rear handle portion 14, which forms a dome 15, which lies on the side of the handle 11 facing away from the blade.

Die Klinge 12 ist gegenüber dem Griff 11 bei Überschreiten eines Auslösedrehmomentes drehbar. Der Griff besitzt in einer inneren Höhlung 19 aber ein Gesperre, welches eine Drehmomentbegrenzungsanordnung ausbildet, mit welchem durch Drehen des Griffes 11 auf die Klinge 12 ein Drehmoment aufgebracht werden kann. Bei Erreichen des Auslösedrehmomentes dreht die Klinge im Griff durch. In Gegenrichtung können erheblich höhere Drehmomente übertragen werden.The blade 12 is rotatable relative to the handle 11 when a tripping torque is exceeded. The handle has in an inner cavity 19 but a locking mechanism which forms a torque limiting arrangement, with which by turning the handle 11 on the blade 12 a torque can be applied. When the release torque is reached, the blade turns in the handle. In the opposite direction significantly higher torques can be transmitted.

Der vordere Griffteil 13 bildet ein Innengewinde 16 aus. In dieses Innengewinde 16 kann ein Außengewinde 17 eines Gewindeflansches des rückwärtigen Griffes 14 eingeschraubt werden. Dabei tritt der vordere Griffteil 13 unter Ausbildung einer Trennebene 18 in berührender Anlage an den rückwärtigen Griffteil 14.The front handle part 13 forms an internal thread 16. In this internal thread 16, an external thread 17 of a threaded flange of the rear handle 14 can be screwed. In this case, the front handle part 13 occurs to form a parting plane 18 in touching contact with the rear handle part 14th

Das rückwärtige Ende der Klinge 12, die aus Stahl besteht, ist von einem Kunststoffteil umgeben. Dieses Kunststoffteil bildet ein Zahnteil 20 aus. Das Zahnteil 20 besitzt eine Verzahnung 21 mit sägezahnförmigen Zähnen. Das Zahnteil 20 ist drehfest mit der Klinge 12 verbunden.The rear end of the blade 12, which is made of steel, is surrounded by a plastic part. This plastic part forms a toothed part 20. The tooth part 20 has a toothing 21 with sawtooth-shaped teeth. The tooth part 20 is rotatably connected to the blade 12.

Die Höhlung 19 des rückwärtigen Griffteiles 14 besitzt nicht dargestellte, in Achsrichtung verlaufende Nuten bzw. Rippen. In die Nuten der Wandung der Höhlung 19 greifen nicht dargestellte Rippen eines Gegenzahnteiles 22 ein. Das Gegenzahnteil 22 besitzt eine Verzahnung 23, die zu der Verzahnung 21 korrespondiert. Auf der rückwärtigen Stirnfläche des Gegenzahnteiles 22 liegen Distanzscheiben 24. Auf den Distanzscheiben 24 stützt sich eine Schraubendruckfeder 25 ab, die sich mit ihrem anderen Ende auf dem Boden der Höhlung 19 abstützt. Ein Endabschnitt der kunststoffummantelten Klinge ragt dabei in die Höhlung der Schraubendruckfeder 25 ein. Dieser Endabschnitt der Klinge 12 durchragt das hülsenförmige Gegenzahnteil 22.The cavity 19 of the rear handle portion 14 has not shown, extending in the axial direction grooves or ribs. In the grooves of the wall of the cavity 19 engage ribs, not shown, of a counter-tooth part 22 a. The counter-tooth part 22 has a toothing 23 which corresponds to the toothing 21. On the rear end face of the counter-tooth part 22 are spacers 24. On the spacers 24, a helical compression spring 25 is supported, which is supported with its other end on the bottom of the cavity 19. An end portion of the plastic-coated blade protrudes into the cavity of the helical compression spring 25. This end portion of the blade 12 extends through the sleeve-shaped counter tooth part 22nd

Das rückwärtige Griffteil 14 bildet eine Lagerwandung 26 aus, gegen welche sich ein Ringkragen 27 des Zahnteiles 20 abstützt. Mit einem Lagervorsprung 28 stützt sich das Zahnteil 20 auf einem Gegenlager 29 des vorderen Griffteiles 13 ab, so dass es axial fest im Griff 11 einliegt. Das Zahnteil 20 nimmt die Klinge 12 auf. Die Klinge 12 steckt mit ihrem Ende fest in dem sich bis in die Höhlung der Druckfeder 25 erstreckenden Kunststoffteil 20.The rear handle part 14 forms a bearing wall 26, against which an annular collar 27 of the toothed part 20 is supported. With a bearing projection 28, the tooth part 20 is supported on an abutment 29 of the front grip part 13, so that it rests axially fixed in the handle 11. The tooth part 20 receives the blade 12. The blade 12 is stuck with its end in the up to the cavity of the compression spring 25 extending plastic part 20th

Durch Wahl geeigneter Distanzscheiben 24 kann das Auslösedrehmoment eingestellt werden. Die Klinge 12 durchragt mit Spiel eine Axialhöhlung des vorderen Griffteiles 13.By selecting suitable shims 24, the release torque can be adjusted. The blade 12 penetrates with play an axial cavity of the front handle portion 13th

Bei dem in der Figuren 17 dargestellten Ausführungsbeispiel ist die gesamte Drehmomentbegrenzungsanordnung fest der Klinge zugeordnet. Die Klinge 12 besteht aus einem Sechskantstahl mit einer Abstufung. Auf dieser Abstufung stützt sich eine kreisrunde Metallscheibe 30 ab. Diese Metallscheibe 30 bildet eine Lagerscheibe. Den verjüngten Abschnitt der Klinge 12 in sich aufnehmend stützt sich auf der rückwärtigen Breitseitenfläche der Lagerscheibe 30 eine kräftige Schraubendruckfeder 25 mit einem rechteckigen Windungsprofil ab. Die Spannkraft dieser Schraubendruckfeder 25 definiert das Grenzdrehmoment, bei welchem die weiter unten noch zu erläuternden Zähne einer Verzahnung 23 und einer Gegenverzahnung 21 außer Eingriff treten.In the in the Figures 17 illustrated embodiment, the entire torque limiting arrangement is assigned to the blade. The blade 12 is made of a hexagonal steel with a gradation. On this gradation, a circular metal disk 30 is supported. This metal disk 30 forms a bearing disk. The tapered portion of the blade 12 receiving in itself is based on the rear wide side surface of the bearing plate 30 from a strong helical compression spring 25 with a rectangular winding profile. The clamping force of this helical compression spring 25 defines the limit torque at which the teeth of a toothing 23 and a counter toothing 21, which will be explained below, are disengaged.

Das von der Lagerscheibe 30 weg weisende Ende der Schraubendruckfeder 25 steckt in einer Ringhöhlung, die einem Gegenzahnteil 22 zugeordnet ist. Das Gegenzahnteil 22 ist aus Kunststoff und besitzt an seiner Außenwandung Rippen.The pointing away from the bearing plate 30 end of the helical compression spring 25 is inserted in a ring cavity, which is associated with a counter-tooth part 22. The counter-tooth part 22 is made of plastic and has ribs on its outer wall.

Das Gegenzahnteil 22 bildet Sägezähne 23 aus. Diese Sägezähne 23 befinden sich auf der dem Boden der Ringnut, auf welchem sich die Druckfeder 25 abstützt, abgewandten Seite. Die Zähne 23 greifen in Lücken von Sägezähnen 21 eines Zahnteiles 20 ein. Das Zahnteil besteht ebenfalls aus Kunststoff. Es ist aber drehfest und axialfest der Klinge 12 zugeordnet. Die Kraft der vorgespannten Druckfeder 25 presst das Zahnteil 20 gegen eine auf einem Gewindeabschnitt 31 der Klinge 12 zugeordneten Unterlegscheibe 22. Die Unterlegscheibe 32 wird von einer Mutter 33 gehalten, die auf den Gewindeabschnitt 31 aufgeschraubt ist.The counter tooth part 22 forms saw teeth 23. These saw teeth 23 are located on the bottom of the annular groove on which the compression spring 25 is supported, opposite side. The teeth 23 engage in gaps of saw teeth 21 a tooth part 20 a. The tooth part is also made of plastic. But it is rotatably and axially fixed to the blade 12 assigned. The force of the prestressed compression spring 25 presses the toothed part 20 against a washer 22 assigned to a threaded portion 31 of the blade 12. The washer 32 is held by a nut 33 which is screwed onto the threaded portion 31.

Mit der Mutter 33 kann die Spannkraft der Druckfeder 25 und damit das Auslösedrehmoment eingestellt werden. Bezugszeichenliste 1a - c Schraubantriebselement 26 Lagerwandung 2a - c Schraubabtriebselement 27 Ringkragen 3a - c Schraubabtriebsprofil 28 Lagervorsprung 4a - c Kopplungsprofil 29 Gegenlager 5a - c Kopplungsgegenprofil 30 Lagerscheibe (Metallscheibe) 31 Gewindeabschnitt 32 Unterlegscheibe 33 Mutter 34 Futter 11 Griff 12 Antriebsschaft/Klinge 13 Kunststoff-Griffteil 14 Kunststoff-Griffteil 15 Kuppe 16 Innengewinde 41 Fingerangriffszone 17 Außengewinde 42 Handgriff/Fortsatz 18 Trennebene 43 Öffnung 19 Höhlung 44 Handgriff/Fortsatz 20 Zahlteil 45 Klinge, (Sechskant-) 21 Verzahnung/ Gegenzahnteil 22 Gegenzahnteil 23 Verzahnung 24 Distanzscheibe 25 Schraubendruckfeder With the nut 33, the clamping force of the compression spring 25 and thus the release torque can be adjusted. <B> LIST OF REFERENCES </ b> 1a - c Schraubantriebselement 26 bearing wall 2a - c Schraubabtriebselement 27 gorget 3a - c Schraubabtriebsprofil 28 bearing projection 4a-c coupling profile 29 thrust bearing 5a-c Coupling counter profile 30 Bearing disc (metal disc) 31 threaded portion 32 washer 33 mother 34 feed 11 Handle 12 Drive shaft / blade 13 Plastic handle part 14 Plastic handle part 15 knoll 16 inner thread 41 Finger attacking zone 17 external thread 42 Handle / extension 18 parting plane 43 opening 19 cavity 44 Handle / extension 20 Zahlenteil 45 Blade, (hexagon) 21 Toothing / counter tooth part 22 Against dental part 23 gearing 24 spacer 25 Helical compression spring

Claims (11)

  1. Screwdriver system comprising a plurality of screw driving elements (1a - 1c), each having a torque limitation device set to a fixed trigger torque, and comprising a plurality of screwing output elements (2a - 2b), having a screwing output profile (3a - 3c) for acting in a torque-transmitting manner on a a corresponding counter profile of a screw head, and a coupling profile (4a - 4c) for coupling in a torque-transmitting manner to a coupling counter profile (5a - 5c) of one of the screw driving elements (1a - 1c), characterised in that one or more first screwing output elements (2a - 2c), comprising screwing output profiles (3a - 3c) belonging to a first group, have a first coupling profile (4a - 4c), in that at least one or more second screwing output elements (2a - 2c), comprising screwing output profiles (3a - 3c) belonging to a second group that is different from the first group, have a second coupling profile (4a - 4c), in that one or more first screw driving elements (1a - 1c), which are set to a first trigger torque, have a coupling counter profile (5a - 5c) that can only be coupled to the first coupling profile (4a - 4c), and that at least one or more second screw driving elements (2a - 2c), which are set to a fixed second trigger torque that is different from the first trigger torque, have a coupling counter profile (5a - 5c) that can only be coupled to the second coupling profile (4a - 4c).
  2. Screwdriver system according to claim 1, characterised in that one or more further groups, each comprising one or more screwing output elements (2a - 2c) each having a coupling profile (4a - 4c) and a screwing output profile (3a - 3c) and each having one or more screw driving elements (1a - 1 c) having a coupling counter profile (5a - 5c), the coupling profile (4a - 4c) and coupling counter profile (5a - 5c) being in distinct groups so that in each case only coupling profiles (4a - 4c) of one group can be coupled to the coupling counter profile (5a - 5c) of its own group, but not to a coupling counter profile of another group.
  3. Screw driving element (1a - 1c) for a screwdriver system according to either of the preceding claims, having a torque limitation device that is set to a fixed trigger torque, in combination with a plurality of screwing output elements (2a - 2b) having a screwing output profile (3a - 3c) for acting in a torque-transmitting manner on a a corresponding counter profile of a screw head, and a coupling profile (4a - 4c) for coupling in a torque-transmitting manner to a coupling counter profile (5a - 5c) of the screw driving elements (1a - 1c), one or more first screwing output elements (2a - 2c) having a first coupling profile (4a - 4c) that has screwing output profiles (3a - 3c) belonging to a first group, and at least one or more second screwing output elements (2a - 2c) having a second coupling profile (4a - 4c) that has screwing output profiles (3a - 3c) belonging to a second group which is different from the first group, characterised in that the screw driving element (1a - 1 c) has a coupling counter profile (5a - 5c) that can only be coupled to the first coupling profile (4a - 4c).
  4. Screwing output element for a screwdriver system in combination with a plurality of screwing output elements (1a - 1c) each having a torque limitation device that is set to a fixed trigger torque, the screwing output element (2a - 2b) having a screwing output profile (3a - 3c) for acting in a torque-transmitting manner on a a corresponding counter profile of a screw head, and a first coupling profile (4a - 4c) for coupling in a torque-transmitting manner to a coupling counter profile (5a - 5c) of one of the screw driving elements (1a - 1c), one or more first screw driving elements (1a - 1c), which are set to a first trigger torque, having a coupling counter profile (5a - 5c) that can only be coupled to the first coupling profile (4a - 4c), and at least one or more second screw driving elements (2a - 2c), which are set to a fixed, second trigger torque that is different from the first trigger torque, having a coupling counter profile (5a - 5c) that can only be coupled to a second coupling profile (4a - 4c), characterised in that the screwing output element (2a - 2c) comprises a first coupling profile (4a - 4c) belonging to a first group of screwing output profiles (3a - 3c), which first coupling profile is different from the second coupling profile (4a - 4c), which comprises second screwing output elements (2a - 2c) having screwing output profiles (3a - 3c) that belong to a second group different from the first group.
  5. Screwdriver system according to either claim 1 or claim 2, or screwing output element according to claim 4, characterised in that the coupling profiles (4a - 4c), that differ from one another, are differentiated by a different cross-sectional area and in particular are supported by regular, and also star-shaped, polygons such as square, pentagonal and hexagonal profiles.
  6. Screwdriver system according to either claim 2 or claim 5, or screw driving element according to claim 3, characterised in that the coupling counter profiles (5a - 5c) are openings in which only the related coupling profiles (4a - 4c) can be inserted in a torque-transmitting manner.
  7. Screwdriver system according to any of claims 1, 2, 5 or 6, or screw driving element according to either claim 1 or claim 6, characterised in that the screw driving elements (1a - 1c) are formed by handles (11), which in particular are formed so as to be substantially the same, and have an output shaft (12) that has the coupling counter profile (5a - 5c), to which output shaft at most the trigger torque can be transmitted via the handle in the screw-tightening direction and a higher torque can be transmitted in the screw-loosening direction.
  8. Screwdriver system according to any of claims 1, 2 or 5 to 7, or screw driving element according to claim 3, 6 or 7, characterised in that the screw driving element has a handle cavity, in which the torque limitation device fits, which device has interlocking teeth and can only be adjusted after opening the handle.
  9. Screwdriver system according to any of claims 1, 2 or 5 to 8, or screwing output element according to any of the preceding claims 4, 5, 7 or 8, characterised in that the screwing output element (2a - 2c) is a screwdriver bit, which is equipped with finger gripping regions (41) in order that it can be used as an auxiliary screwdriver and/or is a profiled blade.
  10. Screwdriver system or screwing output element according to claim 9, characterised in that the finger gripping region (41) is formed by an extension (42, 44) projecting radially from the axis of rotation of the screwdriver bit, in particular by a lug or a clip-on grip.
  11. Use of a screwdriver system according to any of the preceding claims, characterised in that a screwing output element is included in a pack containing an object that has a threaded joint.
EP13709428.0A 2012-03-21 2013-03-14 Screwdriver system having a plurality of handles equipped with a torque limitation device and screw driver inserts that can be coupled thereto Active EP2828038B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210102392 DE102012102392A1 (en) 2012-03-21 2012-03-21 Wrench with a plurality of equipped with a torque limiting device handles and thus coupled screwdriver bits
PCT/EP2013/055214 WO2013139672A2 (en) 2012-03-21 2013-03-14 Screwdriver system having a plurality of handles equipped with a torque limitation device and screw driver inserts that can be coupled thereto

Publications (2)

Publication Number Publication Date
EP2828038A2 EP2828038A2 (en) 2015-01-28
EP2828038B1 true EP2828038B1 (en) 2016-02-24

Family

ID=47884331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13709428.0A Active EP2828038B1 (en) 2012-03-21 2013-03-14 Screwdriver system having a plurality of handles equipped with a torque limitation device and screw driver inserts that can be coupled thereto

Country Status (3)

Country Link
EP (1) EP2828038B1 (en)
DE (1) DE102012102392A1 (en)
WO (1) WO2013139672A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022114689A1 (en) 2022-06-10 2023-12-21 Wera Werkzeuge Gmbh Screwing tool with torque limiting device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016521A1 (en) 2003-05-17 2004-12-16 Wera Werk Hermann Werner Gmbh & Co. Kg Screwdriver with torque limitation
DE202004021537U1 (en) * 2003-09-10 2008-12-18 Felo-Werkzeugfabrik Holland-Letz Gmbh Multifunctional functional part for a screwdriver
DE202004009014U1 (en) * 2004-06-07 2005-07-28 Froidevaux, Hugues Screwdriver handle for torque limiter
ITUD20050050A1 (en) * 2005-04-05 2006-10-06 Amu S R L MANUAL SCREWDRIVER HANDLE WITH PRETARATED TORSIOMETRIC DEVICE SUITABLE FOR TIGHTENING A SERIES OF VARIETY SCREWS
DE202006013223U1 (en) * 2006-08-29 2007-01-18 Hsieh, Chih-Ching Torque spanner for assembly of tires has indexing ring on handle for identification of specification of this spanner by means of colour of indexing ring
EP2077930A4 (en) * 2006-11-03 2010-11-24 Battenfeld Technologies Inc Torque adjusting drive systems and packaged torque adjusting drive systems
US20080243135A1 (en) * 2007-03-30 2008-10-02 Robinson Randolph C Driver-Fixator System, Method, and Apparatus
ITUD20070108A1 (en) * 2007-06-13 2008-12-14 Amu S R L "PRECASTED MANUAL TORSIOMETRIC CABLE"

Also Published As

Publication number Publication date
DE102012102392A1 (en) 2013-09-26
WO2013139672A2 (en) 2013-09-26
EP2828038A2 (en) 2015-01-28
WO2013139672A3 (en) 2014-02-13

Similar Documents

Publication Publication Date Title
EP2376259B1 (en) Combination wrench
DE60102145T2 (en) DRIVE HEADS FOR FASTENING ELEMENTS
DE1625467A1 (en) Industrial items, especially screws, nuts and the like. as well as tools for driving the same and tools for making these articles
EP1961976A2 (en) Fastening device
DE102016123318B4 (en) High-strength lightweight screw with double contour attack as well as forming process and forming tool for manufacturing and actuating tool for operating such a screw
DE10011506A1 (en) Torque transmission tool
WO1993013323A1 (en) Theaded fixation element, in particular a screw, and screw tool
EP2594367A1 (en) Screw tool with a device for limiting the transferred torque
WO2010034455A1 (en) Screw tap
DE1575287A1 (en) Fastening device
EP2114623B1 (en) Screwing tool
EP2828038B1 (en) Screwdriver system having a plurality of handles equipped with a torque limitation device and screw driver inserts that can be coupled thereto
WO2009015871A1 (en) Screwdriver
WO2015162136A1 (en) Tool comprising an at least two-stage, preferably rotationally symmetrical, telescopically retractable or extensible and lockable force-application system for rotatable connection elements
EP2627481B1 (en) Torque transmission device, in particular in the form of a chuck for a bit
DE102017127270B3 (en) Attachment system for attaching a tool to a tool holder and associated tool key
EP2450580B1 (en) Connector assembly
DE102013208289A1 (en) Wrench
EP3141346A1 (en) Bit holder with depth limit
DE19942292A1 (en) Intermediate member for hand-held screwdriver shaft, with casing outside intermediate member in which drive member can rotate
EP1068930A2 (en) Insert for a wrench
DE202014104720U1 (en) Tool and system for forming a secure screw connection
DE102014213321A1 (en) Angle wrench with rotating driving head
DE20007156U1 (en) Key tool
DE9311857U1 (en) Tool for turning polygonal screws

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141002

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150814

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 776426

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013002004

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160524

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160525

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160624

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013002004

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160314

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

26N No opposition filed

Effective date: 20161125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160524

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502013002004

Country of ref document: DE

Representative=s name: RIEDER & PARTNER MBB PATENTANWAELTE - RECHTSAN, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502013002004

Country of ref document: DE

Owner name: WERA WERKZEUGE GMBH, DE

Free format text: FORMER OWNER: WERA-WERK HERMANN WERNER GMBH & CO. KG, 42349 WUPPERTAL, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160314

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160224

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190109

Year of fee payment: 7

Ref country code: FR

Payment date: 20190319

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 776426

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180314

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20190321

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200315

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200314

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230516

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240318

Year of fee payment: 12