EP0468859B1 - Schraubwerkzeug mit voreinstellbarem Anzugsmoment - Google Patents

Schraubwerkzeug mit voreinstellbarem Anzugsmoment Download PDF

Info

Publication number
EP0468859B1
EP0468859B1 EP19910402002 EP91402002A EP0468859B1 EP 0468859 B1 EP0468859 B1 EP 0468859B1 EP 19910402002 EP19910402002 EP 19910402002 EP 91402002 A EP91402002 A EP 91402002A EP 0468859 B1 EP0468859 B1 EP 0468859B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
adaptor
screwing
tool according
sliding piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19910402002
Other languages
English (en)
French (fr)
Other versions
EP0468859A1 (de
Inventor
René Hamard
Jacques Picard
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.)
Airbus Group SAS
Original Assignee
Airbus Group SAS
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 Airbus Group SAS filed Critical Airbus Group SAS
Publication of EP0468859A1 publication Critical patent/EP0468859A1/de
Application granted granted Critical
Publication of EP0468859B1 publication Critical patent/EP0468859B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/002—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose for special purposes
    • 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
    • B25B23/141—Mechanical overload release couplings
    • 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
    • B25B23/1415—Break members; Arrangements specially adapted for break-bolts

Definitions

  • the present invention relates to a screwing tool with predetermined tightening torque, cf. for example DE-A-33 42 880.
  • the tool according to the invention is more particularly intended for clamping connecting members on parts to be assembled, requiring the use of two tightening torques.
  • This is, for example, the case when it is desired to assemble at least two plates or the like between which a polymerizable interposition resin, such as a putty, is placed in particular for anticorrosive purposes.
  • a polymerizable interposition resin such as a putty
  • screwdrivers which include a declutching mechanism provided in particular with a compression spring.
  • the latter is housed in a hollow cylindrical sleeve of the screwdriver and determines the value of the disengaging torque for the motor shaft of the screwdriver.
  • the adjustment of the spring is carried out continuously by a displaceable ring acting against the spring, avoiding the use of auxiliary tools.
  • the setting of the compression spring may accidentally change during the screwing operation, either by involuntary rotation of the adjusting ring, or because of the vibrations generated by the screwdriver.
  • the object of the present invention is to remedy these drawbacks and relates to a screwing tool with predetermined tightening torque, in particular intended for the application mentioned previously, allowing rapid and automatic adjustment of the setting of said compression spring to the desired tightening torque, without risk of errors and without using additional tools.
  • the screwing tool with predetermined tightening torque of the type comprising a screwdriver provided with a declutching mechanism, which in particular comprises a compression spring housed in a hollow cylindrical sleeve of the screwdriver and determining the value of the torque clutch for the shaft of the screwdriver motor, is remarkable, according to the invention, in that it comprises a sliding part housed in said sheath and traversed by said drive shaft, said part being accessible from the outside said sleeve and being capable of acting against said spring, and in that it comprises at least one screwing adapter provided with a transmission capable of engaging in said screwdriver drive shaft, a first end of said adapter being capable of cooperating with a connecting member to be tightened, while the second end of said adapter is capable of cooperating with said sleeve by acting against ladi the sliding part which then compresses said spring to a predetermined compression threshold corresponding to the value of the tightening torque to be exerted on said connecting member by means of said transmission.
  • At least two screwing adapters can be mounted separately on the screwdriver, each adapter, when mounted on the barrel of the screwdriver, compressing the compression spring, by means of said sliding part, by a value corresponding to a specific tightening torque.
  • the setting of the calibration of said spring is carried out simply by changing the adapter on the screwdriver. Consequently, it is then possible to have a plurality of adapters, each of which, when mounted on the screwdriver, compresses the spring by a determined value, then corresponding to a specific tightening torque.
  • said sliding part has a cylindrical shape cooperating with the inner wall of said sleeve and it has a transverse bottom, which is provided with an orifice for the passage of said shaft of the screwdriver and against which is likely to come apply said adapter, and a cylindrical skirt extending said bottom and surrounding said compression spring.
  • said sliding part housed in the sheath, has an annular shape whose axial orifice allows the passage of the drive shaft of the screwdriver, said adapter being capable of being applied against the face front of the annular sliding part, which acts, by its rear face, against said compression spring.
  • said sliding part subjected to the action of said compression spring, is held axially in said sheath by retaining means.
  • said compression spring when said cylindrical sliding part is held by its lugs against said ring, said compression spring is compressed to a value corresponding to a determined tightening torque.
  • the screwdriver initially offers a predetermined tightening torque without having to act directly on the sliding part by means of an adapter, its second end coming close to the bottom, facing outwards, of the sliding part.
  • said ring is mounted by screwing on the outer periphery of said sheath and bears against a stop integral with said sheath.
  • a needle stopper is interposed between said sliding part and the corresponding end of said compression spring.
  • connection of the second end of said screwing adapter to said screwdriver sheath is effected by screwing and the connection of the transmission, provided in said adapter, to said drive shaft, is effected by engagement from the polygonal end of said transmission in a corresponding hole provided in said drive shaft.
  • said adapter advantageously consists of a body inside which said transmission is arranged, the first end of the body being provided with a screwdriver bit driven in rotation by said transmission and capable of cooperate with said connecting member to be screwed, while the second end of the body is defined by a removable socket capable of being applied by its end face against said sliding part.
  • said screwing adapter has a 90 ° bent shape so that the axis of rotation of the first end of said adapter is offset parallel to the drive shaft of said screwdriver, said transmission connecting the first end of the adapter to the screwdriver then being bent.
  • the screw-in connecting member intended for the assembly of plates or the like between which a polymerizable resin may be interposed, is of the type comprising a screw and a nut, the latter being capable of be rotated by said tool and having two superimposed polygonal parts, connected to each other by a zone of least resistance.
  • the first end of one of the screwing adapters is shaped to engage in the two polygonal parts of said nut in order to tighten the connecting member to a first tightening torque
  • the first end of the other adapter is shaped to engage in the polygonal part preceding the zone of least resistance of said nut, in order to tighten the connecting member to a second tightening torque, greater than the first, and cause the rupture of the zone of least resistance of said nut nut.
  • means for ejecting the sectioned polygonal part of the nut may be provided in the first end of the screwing adapter.
  • Figure 1 is a partial longitudinal sectional view of a first embodiment of said tool according to the invention, comprising a screwdriver with which can be associated in this case one or the other of the two screwing adapters shown.
  • FIG. 2 shows in longitudinal section the mounting of one of the screwing adapters shown in FIG. 1 on the sleeve of the screwdriver, determining a first specific tightening torque.
  • FIG. 3 shows in longitudinal section the mounting of the other screwing adapter shown in FIG. 1 on the sleeve of the screwdriver, determining a second specific tightening torque, in this case greater than the first.
  • Figures 4A, 4B, 4C and 4D schematically show the different stages of screwing a specific type of connecting member to assemble two plates, using the screwdriver on which are successively mounted the two screw adapters.
  • Figure 5 is a partial longitudinal sectional view of a second embodiment of said tool according to the invention, comprising, analogously to Figure 1, a screwdriver with which can be associated one or the other of the two screw adapters shown.
  • the screwing tools shown with predetermined tightening torque, comprises a screwdriver 1, the body 2 of which is extended by a hollow cylindrical sheath 3 by means of a screw connection 4.
  • a motor not illustrated, is provided in the body 2 of the screwdriver 1, being capable of causing rotation of a drive shaft 5 about a longitudinal axis 6.
  • the hollow cylindrical sheath 3 coaxially surrounds the drive shaft 5, delimiting with the latter a circular passage 7.
  • a disengaging mechanism 8 which comprises, in known manner, a compression spring 9 and an arrangement of rollers 10 ensuring the friction connection between the drive shaft and the engine.
  • This compression spring 9 is housed in the passage 7 of the hollow cylindrical sheath 3 surrounding the drive shaft 5 and it determines the value of the declutching torque of the shaft 5 of said motor of the screwdriver. Consequently, the calibration of said compression spring 9 contributes to determining the value of the tightening torque of the screwdriver corresponding to the value of the disengaging torque.
  • the tool according to the invention also comprises, in combination: - A sliding part 12 housed in the passage 7 of the cylindrical sheath 3 and crossed by the drive shaft 5, the sliding part 12 being accessible from the outside of the sheath 3 being capable of acting against the spring compression 9; and, in this embodiment, - two screwing adapters 14 and 15 capable of cooperating, either one or the other, with the sleeve 3 of the screwdriver and engaging in the shaft drive 5, via a transmission 14A and 15A respectively, each adapter acting against the sliding part 12, which compresses the spring 9 to a predetermined compression value corresponding to a value of the tightening torque to be exerted on a connecting member to be screwed through the transmission.
  • the spring setting is thus a function of the screwing adapter used which acts directly on the spring via the sliding part accessible from the outside. Consequently, the adjustment of the calibration of said spring, helping to determine the disengaging torque of the motor of said drive shaft and, therefore, the tightening torque to be exerted, is carried out without an auxiliary tool, by simply mounting on the screwdriver. the chosen adapter.
  • the sliding part 12 is cylindrical and it comprises a cylindrical lateral skirt 12A cooperating, by sliding, with the wall 7A of the cylindrical passage 7 of said sheath 3 and terminated at one end by a transverse bottom 12B. It is pierced with an orifice 12C for the passage of the drive shaft 5 and this bottom is located near the outside of the screwdriver so as to be thus accessible by each adapter.
  • the compression spring 9 of the disengaging mechanism 8 of the screwdriver 1 bears against the bottom transverse 12B of the part via a needle stopper 16, while the other end of the spring is applied against a shoulder a connecting piece 8A of said declutching mechanism 8.
  • the spring 9 is thus housed in the sliding piece 12.
  • means 18 are provided for retaining the latter.
  • these means 18 can be constituted by radial lugs 12D extending outwards the other end of the skirt 12A, opposite the transverse bottom 12B, and passing through oblong slots 3A formed in correspondence in the sheath 3.
  • the lugs 12D radials are regularly spaced from each other by partial longitudinal slots 12E formed in the cylindrical side skirt 12A of the part 12. This is made of a material with high elastic limit to allow mounting of the part in the sheath.
  • the radial pins 12D are then applied, in the position illustrated in FIG. 1, against a ring 19 which is mounted, by screwing, on the external periphery 3C of the sleeve 3. This displaceable ring bears against a stop 20 secured to the scabbard 3.
  • the spring 9 is compressed by the sliding part 12 held axially in the sheath by the cooperation of the radial lugs 12D with the ring 19 which thus acts as an initial adjustment of the calibration of said spring.
  • the compression of the spring 9 corresponds to a value of the declutching torque of the motor shaft of the screwdriver, corresponding to a determined tightening torque.
  • each adapter 14 and 15 consists of a body, respectively 14B and 15B, inside which the transmission 14A or 15A is arranged.
  • the first end 14C of its body 14B is provided with a screwing tip 14D rotated by the transmission 14A and capable of cooperating with the connecting member to be screwed on an assembly, while the second end 14E of the body is defined by a removable socket 14F capable of being mounted on the sheath 3 of the screwdriver 1.
  • the first end 15C of its body 15B is provided with a screwing tip 15D rotated by the transmission 15A and capable of cooperating with the connecting member to be screwed, while that its second end 15E is defined by a removable socket 15F capable of being mounted on the sleeve 3 of the screwdriver 1.
  • Each socket 14F or 15F is mounted, on one side, by means of a screw connection 14G or 15G in the body 14B or 15B of its adapter.
  • each of the sockets has a thread 14H and 15H respectively intended to cooperate with a thread 7B formed at the entrance to the wall 7A of the passage 7 of said sheath 3.
  • each transmission 14A or 15A has an end with a polygonal section 14A1 or 15A1, for example hexagonal (or then a grooved end), intended to engage in a bore of corresponding section 5A, provided in the drive shaft. 5, which ensures a perfect bond.
  • each adapter 14, 15 is bent at 90 ° so that the axis of rotation of the end piece, respectively 14D and 15D, is offset parallel to the longitudinal axis 6 of the drive shaft 5. It goes without saying that the body could extend coaxially to the shaft 5. Thus, in the illustrated case, each transmission 14A and 15A is bent. Such an embodiment of each of the transmissions, although it is not shown, does not raise any difficulties.
  • screwdriver bits 14D and 15D which can be driven in rotation by their respective transmissions, have different screwing depth depths 14D1 and 15D1. This is due to the fact that the tool shown is more particularly intended to screw specific connecting members, as will be seen with reference to FIGS. 4A to 4D. Obviously, the screwdriver bits could be identical.
  • FIGS. 2 and 3 The mounting of the adapters 14 and 15 on the screwdriver 1 is illustrated in FIGS. 2 and 3, and does not present any difficulties.
  • the end 14A1 of the transmission engages in the bore 5A of the drive shaft of the screwdriver, simultaneously with the screwing of the thread 14H of the sleeve 14F in the thread 7B of the sleeve.
  • the spring 9 is already prepared by the sliding part 12, held by its lugs 12D which are applied against the ring 19, the end face 14J of the sleeve comes flush with the bottom 12B of the part, while that an external annular shoulder 14K of the sleeve is applied against the end face 3B of the sleeve.
  • the 14D tip is likely to provide then a first tightening torque corresponding to the disengaging torque of the mechanism itself imposed by the calibration of the compression spring.
  • Such a tool is for example intended for fixing connecting members 21, such as that shown in FIG. 4A.
  • Two plates 22 and 23 are intended to be assembled by means of these connecting members. Between these plates is interposed a polymerizable resin 24. Consequently, it is necessary in this case to tighten the connecting member 21 to a first tightening torque, then, after the polymerization of the resin, to carry out a final tightening of the member has a second tightening torque, greater than the first.
  • the connecting member 21 comprises a screw 25, the head 25A of which is applied against the external face 22A of the plate 22, and a nut 26 intended to be screwed onto the screw 25 to apply against the outer face 23A of the plate 23.
  • This nut 26 then advantageously comprises, in a known manner, two hexagonal parts 26A and 26B superimposed and connected to each other by a zone of least resistance 26C.
  • the screwing adapter 14 being mounted on the sheath 3 of the screwdriver 1, the cavity 14D1 of its rotary endpiece 14D is engaged around the two parts 26A and 26B of the nut, as shown in FIG. 4B.
  • the tightening torque provided by the end piece, via the transmission 14A, and given by the calibration of the spring, is substantially analogous to the theoretical breaking torque for breaking the two parts of the nut. But, as the end piece 14D traps the two parts of the nut, the rupture of the nut does not occur.
  • the base 26D of the nut 26 is then pressed against the outer face 23A of the plate.
  • the adapter 14 is dismantled from the screwdriver in order to arrange the adapter 15, the tightening torque of which can be provided by its tip 15D is greater than the previous one.
  • the imprint 15D1 of the end piece less deep than that 14D1, only covers part 26B of the nut, so that, when the tool is actuated, the torque of tightening delivered by the end-piece leads to the rupture of the zone of least resistance 26C and the tightening of the final torque of the connecting member 21 on the plates 22 and 23.
  • Figure 4D shows the connecting member 21 after rupture of the part 26B of said nut.
  • ejection means 28 consisting for example of a rod 28A, mounted coaxially with the axis of rotation of the nut. In this way, when acting on the rod, the end face 28B causes the broken part 26B to be ejected from said nut.
  • a spring not shown, recalls the rod in position.
  • the tooling according to the invention can be applied to any type of connecting member, the adjustment of the tightening torque being obtained simply by mounting the appropriate adapter, thereby avoiding the risks of error and guarantees reliable serial work.
  • the sliding piece 112 has an annular shape.
  • the annular part 112 is housed in the sheath 3 of the screwdriver 1 and its axial orifice 112A authorizes the mounting of the part around the drive shaft 5 of the motor of the screwdriver.
  • the rear face 112B of the annular part is in contact with the compression spring 9, by means of the needle stop 16, while the front face 112C, turned towards the outside of the sheath, is in contact, in this case , retaining means 18.
  • These means 18, which axially hold the annular sliding part 112 subjected to the action of the spring 9, comprise, in this second embodiment, a ring 18A threaded at its periphery 18B, which is thus screwed in the corresponding thread 7B provided in the internal wall 7A of the sleeve 3. Furthermore, the ring 18A is provided with an axial hole 18C, the diameter of which is such that it allows, in addition to the passage of the drive shaft 5 of the screwdriver, but also the passage of the end piece of each adapter between said shaft and the wall internal 18C1 delimiting the hole 18C of the ring.
  • the screwing of the ring 18 in the sleeve 3 consequently causes the compression of the spring 9 by means of the sliding piece 112, so that, as in the previous example, the axial position of the ring 18 can be adjusted initially. relative to the sleeve 3 to initially prepare the spring 9 to a compression value corresponding to a predetermined tightening torque.
  • a locking element is provided, such as a screw 18D, for braking the ring in the tapped wall 7B of the sleeve.
  • a radial slot 18E is formed in the ring separating it, at this location, into two parts 18A1 and 18A2.
  • a tapped hole 18F In the part 18A1 is provided a tapped hole 18F, parallel to the axial hole 18B, which receives the screw 18D.
  • FIG. 5 there is shown in FIG. 5, but partially, the two adapters 14 and 15 capable of being mounted individually on the screwdriver 1.
  • the adapter 14 is screwed by the thread 14H of its end piece 14F in the thread 7B of the sheath, so that its face 14J comes flush with the threaded ring 18A fixed inside the sheath. Simultaneously, the end 14A1 of the transmission 14A of the adapter engages in the hexagonal bore 5A of the drive shaft.
  • the screwdriver is capable of tightening the connecting members 21 to a first tightening torque corresponding to the initial compression of the spring.
  • the length of the thread 15H of the sleeve 15F of the adapter 15 is identical to the length of the thread 14H.
  • the end face 15J of the sleeve is extended by an annular cylindrical element 15L which is linked to the socket and which engages between the drive shaft 5 of the screwdriver and the internal wall 18C1 of the ring 18A. The length of the cylindrical element 15L is determined to compress the spring with an appropriate stroke.
  • the element 15L acts progressively on the front face 112C of the annular piece 112 which then compresses the spring 9.
  • the end 15A1 of the transmission 15A of the adapter 15 engages in the drive shaft 5 of the screwdriver.

Landscapes

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

Claims (15)

  1. Schraubwerkzeug mit vorbestimmbarem Anziehdrehmoment, des Typs, welcher einen Maschinenschrauber (1) umfaßt, der mit einer Auskupplungsvorrichtung (8) ausgestattet ist, welche eine Druckfeder (9) umfaßt, die in einer zylindrischen Aufsteck-Gleithülse (3) des Maschinenschraubers untergebracht ist und den Auskupplungsdrehmoment der Antriebswelle (5) des Motors des Maschinenschraubers bestimmt,
    dadurch gekennzeichnet, daß es einen Gleitkörper (12, 112) umfaßt, welcher in der Gleithülse (3) untergebracht ist und welcher von der Antriebswelle durchquert wird, wobei der Körper von der Außenseite der Gleithülse zugänglich ist und geeignet ist, gegen die Feder (9) zu wirken, und dadurch, daß es mindestens einen Schraubverbindungsadapter (14 oder 15) umfaßt, welcher mit einer Transmission versehen ist, die geeignet ist, in die Antriebswelle des Maschinenschraubers einzugreifen, wobei ein erstes Ende (14C oder 15C) des Schraubverbindungsadapters geeignet ist, mit einer festzuziehenden Verbindungsvorrichtung zu kooperieren, während das zweite Ende (14E oder 15E) des Schraubverbindungsadapters geeignet ist, mit der Gleithülse (3) zu kooperieren, indem es gegen den Gleitkörper (12, 112) wirkt, welcher daraufhin die Feder (9) komprimiert, und zwar bis zu einem vorbestimmten Grenzwert der Kompression, der dem Wert des Anziehdrehmoments entspricht, der auf die Verbindungsvorrichtung mittels der Transmission aufgebracht werden soll.
  2. Werkzeug gemäß Anspruch 1,
    dadurch gekennzeichnet, daß es mindestens zwei Schraubverbindungsadapter (14, 15) umfaßt, die einzeln auf den Maschinenschrauber montiert werden können, wobei jeder Schraubverbindungsadapter, wenn er auf die Gleithülse (3) des Maschinenschraubers montiert ist, die Druckfeder (9) mittels des Gleitkörpers (12, 112) komprimiert, und zwar um einen Hub, der einem bestimmten Anziehdrehmoment entspricht.
  3. Werkzeug gemäß Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß der Gleitkörper (12) eine zylindrische Gestalt aufweist, die mit der inneren Wandung (7A) der Gleithülse (3) kooperiert und dadurch, daß der Körper (12) einen querliegenden Boden (12B) umfaßt, der für den Durchgang der Antriebswelle (5) des Maschinenschraubers (1) mit einer Öffnung (12C) versehen ist, wobei der Schraubverbindungsadapter geeignet ist, gegen diese zu wirken, sowie einen zylinderförmigen Mantel (12A), der den Boden (12B) verlängert und die Druckfeder (9) umgibt.
  4. Werkzeug gemäß Anspruch 1 oder 2,
    dadurch gekennzeichnet, daß der Gleitkörper (112), welcher in der Gleithülse (3) untergebracht ist, eine ringförmige Gestalt aufweist, deren axiale Mündung (112A) den Durchgang der Antriebswelle (5) des Maschinenschraubers ermöglicht, wobei der Schraubverbindungsadapter geeignet ist, gegen die Vorderseite (112C) des ringförmigen Gleitkörpers zu wirken, welcher durch seine Rückseite (112B) gegen die Druckfeder (9) wirkt.
  5. Werkzeug gemäß einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, daß der Gleitkörper (12, 112), welcher der Wirkung der Druckfeder ausgesetzt ist, durch Zuhaltungshaken (18) axial in der Gleithülse festgehalten wird.
  6. Werkzeug gemäß den Ansprüchen 3 und 5,
    dadurch gekennzeichnet, daß die Zuhaltungshaken (18) des zylindrischen Gleitkörpers (12) in Kombination folgendes umfassen :
    - radiale Zuhaltungshaken (12D), die sich zur Außenseite des Endes der zylindrischen Verkleidung (12A), das seinem Boden gegenüberliegt, erstrecken und Längsschlitze (3A) durchqueren, die dementsprechend in der Gleithülse vorhanden sind, wobei die radialen Zuhaltungshaken durch Langlöcher (12E), die in der zylindrischen Verkleidung (12A) ausgespart sind, in regelmäßigen Abständen voneinander angeordnet sind ; und
    - einen Ring (19), der auf die Gleithülse (3) montiert ist, und gegen den die Zuhaltungshaken (12D) des Gleitkörpers (12) wirken.
  7. Werkzeug gemäß Anspruch 6,
    dadurch gekennzeichnet, daß der zylindrische Gleitkörper (12) durch seine Zuhaltungshaken (12D) gegen den Ring (19) gehalten wird, wobei die Druckfeder (9) auf einen Wert komprimiert wird, der einem vorbestimmten Anziehdrehmoment entspricht.
  8. Werkzeug gemäß Anspruch 6 oder 7,
    dadurch gekennzeichnet, daß der Ring (19) durch Verschraubung auf die äußere Peripherie (3C) der Gleithülse (3) montiert ist und gegen einen mit der Gleithülse verbundenen Anschlag (20) wirkt.
  9. Werkzeug gemäß Anspruch 4 und 5,
    dadurch gekennzeichnet, daß die Zuhaltungshaken (18) des ringförmigen Gleitkörpers folgendes umfassen :
    - einen Ring (18A), der durch Verschraubung mit der inneren Wandung (7A) der Gleithülse (3) kooperiert und mit einem axialen Loch (18C) für den Durchgang des Schraubverbindungsadapters versehen ist, wobei das ringförmige Teil (112) aufgrund der Wirkung der Feder (9) gegen den Ring (18A) wirkt ; und
    - mindestens eine Blockierungsvorrichtung (18D), die auf dem Ring montiert und von der Außenseite der Hülse zugänglich ist, wobei die Vorrichtung (18D) den Ring (18A) hinsichtlich der Gleithülse (3) festhält, und zwar in einer Position, für die die Feder auf einen Wert komprimiert wird, der einem vorbestimmten Anziehdrehmoment entspricht.
  10. Werkzeug gemäß einem der Ansprüche 3 oder 4,
    dadurch gekennzeichnet, daß zwischen den Gleitkörper und das entsprechende Ende der Druckfeder ein Nadelanschlag (16) eingefügt ist.
  11. Werkzeug gemäß einem der Ansprüche 1 bis 10,
    dadurch gekennzeichnet, daß die Verbindung des zweiten Endstückes (14E oder 15E) des Schraubverbindungsadapters (14 oder 15) mit der Gleithülse (3) des Maschinenschraubers durch Verschraubung ausgeführt wird, und dadurch, daß die Verbindung der Transmission (14A oder 15A) mit der Antriebswelle, die in dem Schraubverbindungsadapter vorgesehen ist, durch das Eingreifen des polygonalen Endstückes (14A1 oder 15A1) der Transmission in eine entsprechende Bohrung (5A) erfolgt, die in der Antriebswelle vorgesehen ist.
  12. Werkzeug gemäß einem der Ansprüche 1 bis 11,
    dadurch gekennzeichnet, daß der Schraubverbindungsadapter (14 oder 15) aus einem Körper (14B oder 15B) besteht, in dessen Inneren die Transmission untergebracht ist, wobei das erste Endstück des Körpers mit einem Verschraubungsansatzstück (14D oder 15D) versehen ist, welches durch die Transmission in Rotationsbewegung versetzt wird, und welches geeignet ist, mit der zu verschraubenden Verbindungsvorrichtung zu kooperieren, während das zweite Ende des Körpers durch eine abnehmbare Hülse (14F oder 15F) bestimmt wird, die geeignet ist, mit ihrer Vorderseite gegen den Gleitkörper (12, 112) zu wirken.
  13. Werkzeug gemäß einem der Ansprüche 1 bis 12,
    dadurch gekennzeichnet, daß der Schraubverbindungsadapter (14 oder 15) um 90° gekrümmt ist, so daß die Rotationsachse des ersten Endes des Schraubverbindungsadapters parallel zur Antriebswelle (5) des Maschinenschraubers abgesetzt ist, wobei die Transmission, die das erste Ende des Schraubverbindungsadapters mit dem Maschinenschrauber verbindet, auf diese Art gekrümmt ist.
  14. Werkzeug gemäß einem der Ansprüche 2 bis 13, des Typs, in dem die zu verschraubende Verbindungsvorrichtung (21), die für den Zusammenbau von Bauteilen bestimmt ist, eine Schraube (25) und eine Schraubenmutter (26) umfaßt, wobei letztere geeignet ist, von dem Werkzeug angetrieben zu werden und zwei übereinanderliegende polygonale Bereiche (26A und 26B) aufweist, die miteinander durch einen Bereich geringeren Widerstandes (26C) verbunden sind,
    dadurch gekennzeichent, daß das erste Ende (14C) eines Schraubverbindungsadapters (14) dergestalt ist, daß es die beiden polygonalen Bereiche (26A und 263) der Schraubenmutter antreibt, um die Verbindungsvorrichtung (21) mit einem vorbestimmten Anziehdrehmoment festzuziehen, und dadurch, daß das erste Ende (15C) des anderen Schraubverbindungsadapters (15) dergestalt ist, daß es den polygonalen Bereich (26B) antreibt, der sich vor dem Bereich geringeren Widerstandes (26C) der Schraubenmutter befindet, so daß die Verbindungsvorrichtung (21) mit einem zweiten Anziehdrehmoment, der den ersten übersteigt, angezogen werden kann und der Bruch des Bereichs geringeren Widerstandes (26C) der Schraubenmutter herbeigeführt wird.
  15. Werkzeug gemäß Anspruch 14,
    dadurch gekennzeichnet, daß Auswerfermittel (28) des unterteilten polygonalen Bereichs (26B) der Schraubenmutter im ersten Ende des Schraubverbindungsadapter (15) vorgesehen sind.
EP19910402002 1990-07-25 1991-07-17 Schraubwerkzeug mit voreinstellbarem Anzugsmoment Expired - Lifetime EP0468859B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9009520 1990-07-25
FR9009520A FR2665096B1 (fr) 1990-07-25 1990-07-25 Outillage de vissage a couple de serrage predeterminable.

Publications (2)

Publication Number Publication Date
EP0468859A1 EP0468859A1 (de) 1992-01-29
EP0468859B1 true EP0468859B1 (de) 1994-06-08

Family

ID=9399099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910402002 Expired - Lifetime EP0468859B1 (de) 1990-07-25 1991-07-17 Schraubwerkzeug mit voreinstellbarem Anzugsmoment

Country Status (3)

Country Link
EP (1) EP0468859B1 (de)
DE (1) DE69102360T2 (de)
FR (1) FR2665096B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3061056B1 (fr) * 2016-12-28 2019-05-17 Safran Nacelles Embout de vissage pour outil de vissage et outil de vissage comportant un tel embout
CN115091174B (zh) * 2022-06-22 2023-04-25 江西中发天信航空发动机科技有限公司 一种发动机轴及轴承安装座自动拧紧装置及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR982347A (fr) * 1949-03-04 1951-06-08 Machine rotative notamment pour visser ou dévisser les vis, écrous ou organes analogues
DE1628079A1 (de) * 1967-01-31 1971-06-09 Licentia Gmbh Zum Schrauben oder Bohren geeignetes Getriebe
US4538483A (en) * 1983-07-18 1985-09-03 V.S.I. Corporation Fastener wrenching means
DE3342880A1 (de) * 1983-11-26 1985-06-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kupplung fuer elektrowerkzeuge
DE3773471D1 (de) * 1986-12-17 1991-11-07 Hilti Ag Handgeraet.
DE3720512A1 (de) * 1987-06-20 1988-12-29 Hilti Ag Handgeraet

Also Published As

Publication number Publication date
DE69102360T2 (de) 1994-11-03
FR2665096A1 (fr) 1992-01-31
EP0468859A1 (de) 1992-01-29
DE69102360D1 (de) 1994-07-14
FR2665096B1 (fr) 1992-11-06

Similar Documents

Publication Publication Date Title
EP0589770B1 (de) Elektrischer Verbinder mit Gewindering und sicherer Verriegelung
EP2496849B1 (de) Selbstblockierende schraubfixiervorrichtung und anordnung damit
EP0317682B1 (de) Zusammenbauvorrichtung für einen Kegelschaft, insbesondere für 7/24 Kegelschäfte, verwendet für Anbauvorrichtungen, Werkzeughalter und Werkzeuge
FR2758667A3 (fr) Outil a main a alimentation electrique interchangeable
EP0340369B1 (de) Vorrichtung zur Befestigung von Werkzeughaltern und Werkzeugen mit konischen und planen Tragflächen, insbesondere für Bearbeitungszentren mit automatischen oder manuellen Werkzeugwechslern
FR2973003A1 (fr) Dispositif d'obturation a verrouillage auto-activable
EP1651899A1 (de) Verriegelungsvorrichtung und damit versehenes leitungsanschlussstück
FR2730441A1 (fr) Dispositif de serrage destine a serrer un outil en forme de disque axialement a bloc
FR2487455A1 (fr) Dispositif de fixation filete difficilement alterable
EP0468859B1 (de) Schraubwerkzeug mit voreinstellbarem Anzugsmoment
FR3047759A1 (fr) Bequille de porte pour montage et demontage rapide
EP0438952A1 (de) Aufnahme-Vorrichtung für Werkzeugträger und Werkzeuge mit konischem Schaft, insbesondere mit 7/24. Konus und Auflagen für Konus und Endfläche
FR2928429A1 (fr) Dispositif de vis de serrage a limitation de couple
EP0466609B1 (de) Werkzeug zum Setzen von einsteckbaren Klammern
FR2493939A1 (fr) Frein a disque
EP3843922A1 (de) Greifer mit austauschbarem kopf und werkzeug damit
EP0314544B1 (de) Spannfutter, insbesondere für Maschinen mit automatischem Vorschub
FR2553017A1 (fr) Mandrin de serrage
CH712544B1 (fr) Outil dynamométrique, en particulier un tournevis ou une clé.
EP0974423B1 (de) Koppelungsmechanismus zwischen einer Werkzeug-Antriebsvorrichtung und einem Werkzeug, insbesondere für ophtalmische Linse Endbearbeitungswerkzeug, und Verfahren zur Anwendung desselben
CH709757A2 (fr) Dynamomètre de contrôle d'un couple pour tournevis d'horloger, son utilisation et ensemble d'outillage d'horloger.
BE1005538A3 (fr) Procede et dispositif de fixation liberable d'un embout male dans un element femelle correspondant.
EP0488848A1 (de) Selbsthemmende Mutter
FR2890328A1 (fr) Element de transmission avec structure de protection limiteuse de couple
FR2758287A1 (fr) Douille de serrage a limiteur de couple

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT NL

17P Request for examination filed

Effective date: 19920224

17Q First examination report despatched

Effective date: 19930831

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT NL

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940613

REF Corresponds to:

Ref document number: 69102360

Country of ref document: DE

Date of ref document: 19940714

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

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

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: NL

Payment date: 20090730

Year of fee payment: 19

Ref country code: GB

Payment date: 20090720

Year of fee payment: 19

Ref country code: DE

Payment date: 20090722

Year of fee payment: 19

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

Ref country code: IT

Payment date: 20090723

Year of fee payment: 19

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110201

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

Effective date: 20100717

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

Ref country code: DE

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

Effective date: 20110201

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69102360

Country of ref document: DE

Effective date: 20110201

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

Ref country code: IT

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

Effective date: 20100717

Ref country code: NL

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

Effective date: 20110201

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: 20100717