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 PDFInfo
- 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.)
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Links
- 230000008878 coupling Effects 0.000 claims description 114
- 238000010168 coupling process Methods 0.000 claims description 114
- 238000005859 coupling reaction Methods 0.000 claims description 114
- 229910000831 Steel Inorganic materials 0.000 description 10
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000002184 metal Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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.
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- 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
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
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:
1a, 1b, 1cFiguren - 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 aufdas Kopplungsprofil 4a - 4 c aufsetzbar ist, - Figur 8
- den in den
Figuren 7a - 7c lediglich strichpunktiert dargestellten Handgriff zur Handbetätigung eines Schraubabtriebselementes gemäß derFiguren 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 derDE 10 2004 016 521 A1 es die Figuren 1a - 1c , sowie 9a - 9c betrifft, und Figur 17- ein Schraubwerkzeug gemäß
Figur 9 derDE 10 2004 016 521 A1 Figur 5 .
- 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 differentnegative feedback profiles 5a - 5c, - FIGS. 7a-7c
- Schraubabtriebselemente with a coupling profile, which in each case to those in the
Figures 6a - 6c shownnegative feedback profiles 5a - 5c fits, with dash-dotted Pictured handle, which is placed on thecoupling profile 4a - 4 c, - FIG. 8
- in the
FIGS. 7a-7c only shown in phantom handle for manual operation of a Schraubabtriebselementes according to theFIGS. 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 theDE 10 2004 016 521 A1 Figures 1a - 1c , and 9a - 9c, and - FIG. 17
- a screwing according to
FIG. 9 of theDE 10 2004 016 521 A1 FIG. 5 ,
Die
Das in der
Das in der
Die
Mit dem in der
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
Die in den
Das Kopplungsprofil 4b ist ein Rechteckzylinder, insbesondere ein quadratischer Zylinder, der in die Öffnung 5b des Futters 34 passt. Die
Das in der
Die in den
Ein zweites Ausführungsbeispiel der Erfindung zeigen die
Die
Die
Die
Die
Die
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
Die in
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
Die
Der Schraubendreher gemäß der
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
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
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
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
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
Durch Wahl geeigneter Distanzscheiben 24 kann das Auslösedrehmoment eingestellt werden. Die Klinge 12 durchragt mit Spiel eine Axialhöhlung des vorderen Griffteiles 13.By selecting
Bei dem in der
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
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
Mit der Mutter 33 kann die Spannkraft der Druckfeder 25 und damit das Auslösedrehmoment eingestellt werden.
Claims (11)
- 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).
- 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.
- 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).
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
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)
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)
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" |
-
2012
- 2012-03-21 DE DE201210102392 patent/DE102012102392A1/en not_active Withdrawn
-
2013
- 2013-03-14 WO PCT/EP2013/055214 patent/WO2013139672A2/en active Application Filing
- 2013-03-14 EP EP13709428.0A patent/EP2828038B1/en active Active
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 |
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