WO1988009708A1 - Outil de vissage et vis utilisables avec cet outil - Google Patents

Outil de vissage et vis utilisables avec cet outil Download PDF

Info

Publication number
WO1988009708A1
WO1988009708A1 PCT/EP1988/000480 EP8800480W WO8809708A1 WO 1988009708 A1 WO1988009708 A1 WO 1988009708A1 EP 8800480 W EP8800480 W EP 8800480W WO 8809708 A1 WO8809708 A1 WO 8809708A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
tool
head
driver
tool according
Prior art date
Application number
PCT/EP1988/000480
Other languages
German (de)
English (en)
Inventor
Helmut Österle
Original Assignee
Sfs Stadler Ag
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 Sfs Stadler Ag filed Critical Sfs Stadler Ag
Publication of WO1988009708A1 publication Critical patent/WO1988009708A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0061—Specially shaped nuts or heads of bolts or screws for rotations by a tool with grooves, notches or splines on the external peripheral surface designed for tools engaging in radial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section
    • 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
    • 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
    • B25B23/0064—Means for adjusting screwing depth

Definitions

  • the invention relates to a tool for screwing in a screw, in particular a screw with a large thread pitch, e.g. a wood screw, with a tool head having a driver, and a screw for use with the tool.
  • a screw with a large thread pitch e.g. a wood screw
  • the screw can also be overstressed or, due to the high resistance when the screw head is pressed into the plate to be fastened, the base material can be torn out by the screw turns, so that the screw is poorly anchored in the base material and therefore no longer securely fastens the plate .
  • this is achieved in that the screwing in Screw trained driver of the tool head is designed as a countersinking tool with cutting edges and the screw in the driver is displaceable in its axial direction, but is held against rotation with respect to the driver.
  • the countersinking feed can thus be kept smaller than the screw-in feed, which is determined by the thread pitch of the screw.
  • Several turns of the driver are available to produce the countersink.
  • the chip thickness is therefore relatively small, so that a clean countersink is created. Because of the small chip thickness, the risk of tearing away from the countersunk parts of the workpiece surface is low.
  • the previous separate and therefore expensive countersinking process can be omitted, since the countersinking is carried out simultaneously with the screwing in of the screw.
  • the tool according to the invention thus has two functions, namely screwing in the screw and producing the countersink for the screw head. It can be used in all drilling and screwing devices. However, use with drilling or screwing devices which have a torque limitation is particularly advantageous.
  • the hit taker advantageously has one or more, offset to the central axis of the tool head; and fingers extending in approximately axially parallel direction, which engage in cutouts in the head of a screw to be screwed in approximately corresponding to the cross section of the fingers and connect their ends with a little play on the screw shaft when the screw is inserted in the driver, and furthermore the finger or fingers formed at its free end (s) as countersinking tools with cutting edges.
  • These fingers hold the screw securely and allow the screw head to move in the axial direction relative to the tool during the production of the countersink, which takes place with a relatively low feed rate. This enables a very simple construction of the tool.
  • the length of the fingers is a multiple of the length of the head of the screw to be screwed in, measured in the axial direction, in order to take into account the slower countersinking feed rate compared to the faster screwing feed rate. This enables the countersink to be made by several turns of the driver before the screw head reaches the bottom of the countersink.
  • the driver is advantageously accommodated in a slot in the tool head and secured with a pin running transversely to the tool axis. This enables simple construction of the tool. To replace the carrier, it is then sufficient to remove a pin. A new driver can then be inserted and secured again with the pin.
  • a rotatable sleeve is advantageously arranged on the tool head and limits the depth of the countersink to be produced with the driver designed as a countersink tool. After being countersunk, this sleeve rests on the workpiece and stands still so that the workpiece surface is not damaged. In order to reliably avoid damage, it is also possible to manufacture the sleeve from a relatively soft material. The sleeve can also additionally serve to prevent the pin with which the driver is held from falling out.
  • a thread with an adjusting nut is advantageously arranged on the rear part of the tool head, with which the axial position of the rotatable sleeve can be limited in accordance with the required depth of the countersink to be produced with the driver designed as a countersink tool.
  • This has the advantage that different sleeve lengths are not necessary for different countersink depths. Rather, it is possible to limit the countersink depth by adjusting the adjusting nut.
  • the sleeve does not fall off the tool head, it advantageously has a stop which limits its forward movement.
  • This stop can be formed by a threaded piece. When using such a thread It is then sufficient to replace the sleeve by removing it with a few turns.
  • the inner diameter of the sleeve can be kept slightly larger than the diameter of the screw head.
  • Recesses are advantageously provided on the sleeve to make the screws visible when penetrating. This makes it possible to monitor the screwing-in process.
  • the driver and the tool head are designed as one piece. This has the advantage that there is no risk of losing any parts of the tool. If the tool is in one piece, a shoulder is advantageously provided at the front of the tool head, which limits the depth of the countersink to be produced. There is then no danger that the countersink will be made too deep.
  • driver and tool head are integrated in a screwdriver with the interposition of a claw and / or torque clutch. Such an embodiment is particularly advantageous when a large number of screw connections are to be carried out in the manner according to the invention.
  • the invention also relates to a screw for use with the tool according to the invention.
  • a screw for use with the tool according to the invention.
  • at least one cutout or incision of any cross-sectional shape with an approximately axially extending driver stop surface is provided on the screw head.
  • two or more cutouts with driver stop faces are advantageously provided distributed around the screw axis, the driver stop faces through the boundary surfaces of axially parallel to the screw axis, e.g. are formed as rectangular or wedge-shaped slots.
  • the fingers of the driver can engage in these cutouts, during the
  • the boundary surface of the cutout (s) opposite the driver stop surface is inclined at an acute angle to the surface of the screw head. This also ensures that the screw head is secured against unscrewing, since there is no proper contact surface for any tool in the direction of removal.
  • Fig. 1 is a schematic representation of a screwing and countersinking process, in which the countersinking feed for the production of the countersink for the
  • Screw head is kept smaller than the screw feed, with which the screw moves in the axial direction into the workpiece;
  • FIG. 3 shows a view of the tool according to FIG. 2 from the front
  • Figure 4 is a section through the tool along the line IV-IV in Fig. 2.
  • FIG. 5 shows, partly in section, a tool as in FIG. 4 with additional cutouts for making the screws visible when screwing in; 6 is a front view of the tool according to FIG. 5;
  • FIG. 8 shows a view of the screw head according to FIG. 7;
  • FIG. 9 shows a second exemplary embodiment of the tool according to the invention with an inserted screw
  • 10 shows the tool with screw according to FIG. 9 at the end of the countersinking and screwing-in process
  • FIG. 11 is a perspective view of a third embodiment of the tool according to the invention.
  • FIG. 12 shows a fourth exemplary embodiment of the tool according to the invention
  • 13 shows a section through the tool according to FIG. 12 along the line XIII-XIII;
  • 15 shows a view of the head of the screw according to FIG. 14; 16 to 18 show further examples of wedge-shaped, axial slots in the heads of screws; 19 shows a screw with a large head diameter; 20 shows a view of the head of the screw according to FIG. 19; 21 shows a driver for the screw according to FIGS. 19 and 20; 22 to 27 show top views of different screw head shapes that can be used in connection with corresponding tools according to the invention; 28 to 30 tools in side view, different cutting edge shapes of the drivers being evident.
  • FIG. 1 illustrates a process in which a countersunk screw 13 is screwed into the material 15 to fasten a plate 11 and at the same time a countersink 17 is produced in the plate 11.
  • the countersink 17 serves to receive the screw head 19.
  • the reference number 21 denotes the schematically illustrated screwing tool and the reference number 23 the schematically shown countersinking tool. It is characteristic of this method that the feed of the countersinking tool 23 is smaller than the screw-in feed, with which the screw 13 penetrates the plate 11 or the workpiece 15 in the axial direction.
  • the ratio between the feed V 1 of the screw 13 and the feed V 2 of the tool 23 is approximately 3: 1 to 6: 1.
  • the countersink 17 is therefore produced with a relatively small chip thickness. This creates a clean countersink without the risk of material being torn out at the edges of the countersink.
  • the embodiment of the insertion tool according to FIGS. 2 to 4 shows a tool head 25 with a driver 23, which is also designed as a countersinking tool.
  • the driver 23 has the shape of a plate with a central slot 27 for receiving the shaft 14 of the screw 13.
  • the driver 23 has a bore 29 with which it is secured in the tool head 25 by means of a pin 31.
  • the edges 33 of the driver 23 act as cutting edges for producing the countersink 17.
  • the tool head 25 in one piece with the driver 23.
  • the interchangeability of the driver 23, however, has considerable advantages. So it can also be used as a countersinking tool kende driver 23 after the dies 33 become blunt by another driver 23. Furthermore, replacement by a driver 23 of a different shape is also possible.
  • the driver 23 shown generates a conical countersink. However, drivers 23 are also possible which produce other forms of countersink, for example a cylindrical countersink.
  • the driver shown in Fig. 2 to 4 has two axially extending fingers 35, which after inserting the screw 13 (Fig. 7 and 8) in the tool with a little play the screw shaft. These fingers 35 are approximately five times as long as the length of the head 19 of the screw 13 to be screwed in. In any case, the length of the fingers should be a multiple of the length of the head of the screw to be screwed measured in the axial direction. It can also be adapted to the different materials in which the screws are screwed or in which the countersink must be made. In this regard, adaptation to different thread pitches of the screw to be screwed in is also possible. As will be explained in more detail later, this makes it possible to keep the feed speed during the countersinking process lower than the speed at which the screw 13 is driven into the material 15 in the axial direction.
  • the driver 23 is accommodated in a slot 37 of the tool head 25.
  • the diameter of the tool head 25 is larger than the diameter of the screw head.
  • the fingers 35 are therefore guided into the area of the cutting edges 33. The risk of the fingers 35 breaking is therefore low.
  • a rotatable sleeve 41 is arranged on the tool head 25.
  • the tool would also be usable without this sleeve 41.
  • the sleeve 41 has the advantage that it limits the depth of the countersink to be produced and prevents the pin 31 from falling out. So that the sleeve 41 is not lost, a stop or other locking device be provided.
  • a thread 43 is provided on the tool head 25, via which the internal thread 45 of the sleeve can be screwed until it reaches the area 47 where the tool head 25 no longer has a thread.
  • the sleeve 41 can therefore rotate freely on the tool head, the flange 49 serving as an axial bearing.
  • An axial ball bearing could also be provided in this area to absorb an axial pressure and to ensure that the sleeve 41 rotates easily.
  • the thread 43 normally prevents the sleeve 41 from falling out. However, if you want to replace the sleeve, this can be done simply by screwing.
  • the sleeve 41 can be made of transparent plastic. However, as FIGS. 5 and 6 show, it is also possible to make recesses 42 in the sleeve 41 so that the screw 13 remains visible when screwed in.
  • the tool head 25 is also flattened on both sides at the front.
  • the tool head 25 of FIG. 3 can be milled on both sides, so that it has the shape according to FIGS. 5 and 6.
  • driver and tool head are integrated in a screwdriver with the interposition of a claw and / or torque clutch.
  • Such a design will be considered in particular if many or mainly screw connections are to be carried out, in which countersinking is required to accommodate the screw head.
  • This screw is shown in FIGS. 7 and 8. It has a head 19 with two axially extending, slot-shaped cutouts 20. These cutouts form axially extending hit stop faces 22.
  • the fingers 35 of the driver 23 can thus engage in the cutouts 20, the screw 13 then being able to move axially relative to the driver 23 by the desired difference between the feed speed V 2 of the driver and the speed V 1 of the screw 13 to enable.
  • the exemplary embodiment according to FIGS. 9 and 10 differs from that of FIGS. 2 and 4 in that the sleeve 41 is secured differently on the tool head 25.
  • This sleeve 41 consists, for example, of plastic, advantageously of transparent plastic, and has a number of axial slots 51, so that fingers 53 are formed which have a spherical projection 55 at the end.
  • the fingers 53 can snap into the groove 57 with the spherical projections, so that the sleeve 41 is held in this position.
  • the operation can therefore be explained with reference to FIGS. 9 and 10.
  • the shaft 26 of the tool is clamped in a screwing device - or, as already explained, is integrated in a screwdriver - the screwing device advantageously having a device for torque limitation.
  • the screw 13 to be screwed in is then inserted into the opening 39, as shown in FIG. 9.
  • the fingers 35 of the driver 23 engage in the cutouts 20 of the screw head 19.
  • the screw 13 is taken safely and bores into the plate 11 or the material 15 lying behind it.
  • FIG. 10 shows the end of the countersinking and screwing-in operation.
  • the sleeve 41 comes to a standstill when the plate 11 is touched and thus does not damage the plate.
  • the sleeve advantageously consists of a relatively soft material, for example plastic. This further reduces the risk of damage.
  • FIG. 10 shows the exemplary embodiment of FIG.
  • the tool consists of one piece, for example a turned part made of steel with millings for forming the fingers 35 with the cutting edges 33. Instead of a sleeve, shoulders 44 are provided which limit the depth of the countersink to be produced.
  • the finger 35 is suitable the tool for screws with axial cutouts in the shape according to FIG. 17.
  • other finger shapes are also possible for corresponding other screw shapes.
  • drivers 23 and tool head 25 consist of one piece. A two-piece version would also be possible.
  • a significant difference to the embodiments of FIGS. 2 to 6 and 9 and 10 is that the inner diameter of the sleeve 41 is only slightly larger than the diameter of the head 19 of the screw 13 to be screwed in. The tool is therefore somewhat more compact than that of the previously described embodiments.
  • Adjacent to the shaft 26 of the tool head 25 is a thread 59, on which there are two adjusting nuts 60.
  • the depth of the countersink to be produced can be adjusted with these adjusting nuts 60.
  • a helical spring 61 ensures that when the screw 13 is inserted, the sleeve 41 is always in the front position shown in FIG. 1 and thus facilitates the insertion of the screw 13.
  • the invention can also be used, for example, for screws with cylindrical or polygonal heads.
  • the invention is suitable for screws with other head shapes.
  • axial stop surfaces 22 can be formed in various ways, e.g. also through cutouts 20 in the form of wedge-shaped slots.
  • 19 and 20 show a screw 13 with a flat head with a large diameter.
  • FIG. 21 shows the associated driver 23, which has three fingers 35, which overall produce a cylindrical countersink.
  • the cutouts 20 have an approximately U-shaped cross section.
  • three cutouts 20 are arranged distributed over the circumference of the screw head 19.
  • the two boundary surfaces of the cutouts 20 form a right angle with one another, the two stop surfaces 22 being diametrically opposite one another.
  • only a cutout 20 is provided in the screw head 19, which for example has a V-shaped cross section. Accordingly, the tool for screwing in such a screw 13 will also have only one finger 35, which is designed at its free end as a countersinking tool with cutting edges.
  • the boundary surface 71 of the cutout 20 opposite the driver stop surface 22 is inclined at an acute angle to the surface of the screw head 17. This also provides protection against unscrewing since there is no effective stop surface for a tool in the direction of unscrewing.
  • the screw head 19 is designed like a hammer head, i.e. with two opposing parallel boundary surfaces 72.
  • the manufacture of such a screw head is likely to be compared to designs with other cutout shapes. be easier.
  • the drivers 35 with the corresponding cutting edges can take up practically the entire free space, each of which has a circular cross-section. In such an embodiment, however, only lateral guidance of the screw head during the screwing in, that is, for example, by an applied sleeve 41, is expedient or necessary.

Abstract

Un outil comprend essentiellement une tête (25) pourvue d'une fente (37) dans laquelle est fixé un tenon d'entraînement (23) à deux doigts (35). Ces doigts (35) présentent des taillants (33) pour tailler un évidement (17). Lorsque l'on fait tourner l'outil, la vis (13) s'enfonce dans le matériau (15), alors que les bords taillants (33) taillent l'évidement (17) pendant plusieurs rotations de l'outil. Pendant que l'évidement (17) est taillé, la tête (19) de la vis s'avance le long des doigts (35) à une vitesse supérieure à celle des taillants (33). Compte tenu de l'avancement relativement réduit des taillants (33), la profondeur de coupe de l'évidement reste faible et on obtient un évidement net dans lequel la tête (19) de la vis est noyée.
PCT/EP1988/000480 1987-06-01 1988-05-28 Outil de vissage et vis utilisables avec cet outil WO1988009708A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2075/87-7 1987-06-01
CH207587 1987-06-01

Publications (1)

Publication Number Publication Date
WO1988009708A1 true WO1988009708A1 (fr) 1988-12-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000480 WO1988009708A1 (fr) 1987-06-01 1988-05-28 Outil de vissage et vis utilisables avec cet outil

Country Status (1)

Country Link
WO (1) WO1988009708A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5957645A (en) * 1997-10-31 1999-09-28 Phillips Screw Company Spiral drive system for threaded fasteners
WO1999052680A1 (fr) * 1998-04-13 1999-10-21 Wright Tool Company Systeme de cle a couple eleve
FR2778130A1 (fr) * 1998-04-30 1999-11-05 Eric Daniel Berthaud Dispositif de vissage noyant la tete polygonale d'une vis
WO2000045057A1 (fr) * 1999-01-29 2000-08-03 Wright Tool Company Systeme de cle a couple eleve
EP2093001A1 (fr) * 2008-02-19 2009-08-26 wolfcraft GmbH Outil pouvant être entraîné par rotation doté d'un manchon de butée réglable axialement, notamment un outil de chanfreinage
US8182187B2 (en) 2008-04-21 2012-05-22 Asia Fastening (Us), Inc. Drive system
FR3009743A1 (fr) * 2013-08-13 2015-02-20 Airbus Operations Sas Procede d'assemblage de pieces utilisant une fixation temporaire apte a se visser
WO2019148177A1 (fr) * 2018-01-29 2019-08-01 Summa Orthopaedics Inc. Fraise et coupe-tête de vis

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR427471A (fr) * 1911-03-17 1911-08-04 K Zengel Tournevis avec support pour la vis
GB191112905A (en) * 1911-05-29 1911-11-16 Russell De Witt Burdick Improvements in Wood Screws.
GB542162A (en) * 1940-12-03 1941-12-29 Edwin Ronald Waddington Improvements in counter sinking drills
US2429375A (en) * 1943-08-11 1947-10-21 Robert H Clark Socket for drilling and countersinking tools
DE925459C (de) * 1943-11-05 1955-03-21 Heinrich Schattat Schraubenzieher
US2905030A (en) * 1957-02-21 1959-09-22 Cogsdill Tool Prod Micro-limit countersink drive with override
CH387419A (de) * 1960-03-02 1965-01-31 Gustav Neuhaeuser Fa Kombiniertes Werkzeug zum Schneiden von Innengewinden und zum Entgraten bzw. Ansenken des Bohrungsrandes
FR1457117A (fr) * 1965-12-01 1966-10-28 Vis à bois et vis à métaux, tête fraisée, cylindrique et ronde, indémontable antivol
GB1187585A (en) * 1966-08-17 1970-04-08 Gkn Screws Fasteners Ltd New or improved Tool for Driving Fasteners and the like with Impact and/or Rotary Motion
US3532142A (en) * 1968-05-09 1970-10-06 Harold B Ziegler Screwdriver guide assembly
GB2036907A (en) * 1978-12-10 1980-07-02 Davies W Slotted Fasteners
US4325153A (en) * 1979-10-22 1982-04-20 Charles Finnegan Combined screwdriver and boring apparatus
DE3148223A1 (de) * 1981-12-05 1983-06-16 Josef Adolf 5410 Höhr-Grenzhausen Knopp Schraubenkopf mit senkschneide

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR427471A (fr) * 1911-03-17 1911-08-04 K Zengel Tournevis avec support pour la vis
GB191112905A (en) * 1911-05-29 1911-11-16 Russell De Witt Burdick Improvements in Wood Screws.
GB542162A (en) * 1940-12-03 1941-12-29 Edwin Ronald Waddington Improvements in counter sinking drills
US2429375A (en) * 1943-08-11 1947-10-21 Robert H Clark Socket for drilling and countersinking tools
DE925459C (de) * 1943-11-05 1955-03-21 Heinrich Schattat Schraubenzieher
US2905030A (en) * 1957-02-21 1959-09-22 Cogsdill Tool Prod Micro-limit countersink drive with override
CH387419A (de) * 1960-03-02 1965-01-31 Gustav Neuhaeuser Fa Kombiniertes Werkzeug zum Schneiden von Innengewinden und zum Entgraten bzw. Ansenken des Bohrungsrandes
FR1457117A (fr) * 1965-12-01 1966-10-28 Vis à bois et vis à métaux, tête fraisée, cylindrique et ronde, indémontable antivol
GB1187585A (en) * 1966-08-17 1970-04-08 Gkn Screws Fasteners Ltd New or improved Tool for Driving Fasteners and the like with Impact and/or Rotary Motion
US3532142A (en) * 1968-05-09 1970-10-06 Harold B Ziegler Screwdriver guide assembly
GB2036907A (en) * 1978-12-10 1980-07-02 Davies W Slotted Fasteners
US4325153A (en) * 1979-10-22 1982-04-20 Charles Finnegan Combined screwdriver and boring apparatus
DE3148223A1 (de) * 1981-12-05 1983-06-16 Josef Adolf 5410 Höhr-Grenzhausen Knopp Schraubenkopf mit senkschneide

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6234914B1 (en) 1997-10-31 2001-05-22 Phillips Screw Company Punch for forming threaded fasteners with spiral drive
US5957645A (en) * 1997-10-31 1999-09-28 Phillips Screw Company Spiral drive system for threaded fasteners
US6367358B1 (en) 1997-10-31 2002-04-09 Phillips Screw Company Driver for threaded fasteners with spiral drive
US6725746B1 (en) 1998-04-13 2004-04-27 Wright Tool Company High torque wrenching system
US6698316B1 (en) 1998-04-13 2004-03-02 Wright Tool Company Asymmetrical fastening system
US6698315B1 (en) 1998-04-13 2004-03-02 Wright Tool Company High torque wrenching system
WO1999052680A1 (fr) * 1998-04-13 1999-10-21 Wright Tool Company Systeme de cle a couple eleve
US6904833B2 (en) 1998-04-13 2005-06-14 Wright Tool Company Asymmetric wrench and fastener system
US7174811B2 (en) 1998-04-13 2007-02-13 Wright Tool Company Asymmetric wrench and fastener system
US7484440B2 (en) 1998-04-13 2009-02-03 Wright Tool Company Asymmetric wrench and fastener system
FR2778130A1 (fr) * 1998-04-30 1999-11-05 Eric Daniel Berthaud Dispositif de vissage noyant la tete polygonale d'une vis
WO2000045057A1 (fr) * 1999-01-29 2000-08-03 Wright Tool Company Systeme de cle a couple eleve
EP2093001A1 (fr) * 2008-02-19 2009-08-26 wolfcraft GmbH Outil pouvant être entraîné par rotation doté d'un manchon de butée réglable axialement, notamment un outil de chanfreinage
US8182187B2 (en) 2008-04-21 2012-05-22 Asia Fastening (Us), Inc. Drive system
FR3009743A1 (fr) * 2013-08-13 2015-02-20 Airbus Operations Sas Procede d'assemblage de pieces utilisant une fixation temporaire apte a se visser
WO2019148177A1 (fr) * 2018-01-29 2019-08-01 Summa Orthopaedics Inc. Fraise et coupe-tête de vis

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