EP1362672A2 - Dispositif pour tenir et visser des vis - Google Patents

Dispositif pour tenir et visser des vis Download PDF

Info

Publication number
EP1362672A2
EP1362672A2 EP02026716A EP02026716A EP1362672A2 EP 1362672 A2 EP1362672 A2 EP 1362672A2 EP 02026716 A EP02026716 A EP 02026716A EP 02026716 A EP02026716 A EP 02026716A EP 1362672 A2 EP1362672 A2 EP 1362672A2
Authority
EP
European Patent Office
Prior art keywords
tool
holder
screw
screw head
holding elements
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.)
Withdrawn
Application number
EP02026716A
Other languages
German (de)
English (en)
Other versions
EP1362672A3 (fr
Inventor
Heinrich Dienst
Frank Dr.-Ing. Dratschmidt
Christof Homrighausen
Thomas Voigt
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.)
Ejot Baubefestigungen GmbH
Original Assignee
Ejot Baubefestigungen GmbH
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 Ejot Baubefestigungen GmbH filed Critical Ejot Baubefestigungen GmbH
Publication of EP1362672A2 publication Critical patent/EP1362672A2/fr
Publication of EP1362672A3 publication Critical patent/EP1362672A3/fr
Withdrawn legal-status Critical Current

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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
    • B25B23/0064—Means for adjusting screwing depth
    • 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
    • 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
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • 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
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/101—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for hand-driven screw-drivers

Definitions

  • the invention relates to a device for holding and screwing in screws, one head radially projecting above the shaft and one centered therein arranged recess for a positive tool engagement have, with a screw-in tool adapted to the recess and a Bracket for the screw, which essentially operates this surrounds annularly and with several radially inwardly biased Holding elements releasably holds the screw.
  • Such a device with balls guided in radial channels as holding elements is known from DE 195 06 336 A1.
  • the one with a long one Shank equipped screw is in a laterally swiveling guide inserted from above and thereby held and aligned that at least one of two spaced ball clamps of the type described above Art attacks the screw shaft and keeps it centered, screwing in the screw in which it moves axially but not obstructs.
  • Screw assemblies with a different design that use one screw for secure fastening Keep screwing in and guiding while screwing in are known from DE 196 50 799 C1, 197 12 783 A1 and 197 23 056 C1.
  • the invention solves the problem of a simple and reliable device to hold and screw in especially short screws in that the holder is axially immovably connected to the tool is a system for the top and radially outside the tool has a screw head, and that the holding elements one at the Grip the screw head in contact with the rest. While the well-known Screw head brackets embraced the screw head in a form-fitting manner and clamped so that they can be used to insert and release the screw head perform special movements - also relative to the tool the screw head becomes essentially non-positive in this way engaged between the system and the ball ring.
  • a similarly configured holder is known per se from US Pat. No. 5,065,649. However, it is not connected to the tool, the shank of which considerable radial play is insertable into a cylindrical approach.
  • the bracket (including the approach) is made of elastic Material and the holding elements are integrally molded radially inwards directed tooth-shaped projections that are neither a secure snap ensure that the screw head is held securely.
  • the housing of the holder that is axially immovable relative to the tool can be firmly connected to the tool or even out of it consist of one piece.
  • the holder is on the Tool rotatably supported on the end face of the shaft, because in this way even when the tool and screw are rotating does not turn as soon as it is on a screwdriver this surrounding surface comes to rest.
  • the device for the surface of the screw head in the holder Locked state can be varied. You can out a ring surrounding the tool, but also a plurality of there are more or less punctiform surfaces which are the tool surround. It is only decisive that the areas in question are the facility for define the screw head sufficiently.
  • the shank can be made from a concentric to the tool, the retaining ring guide ring and several on the circumference Distributed webs consist of the guide ring with the tool (or a bearing sleeve surrounding its shaft). The end faces these webs can then face the screw head during operation End faces (in whole or in part) the system for the surface of the screw head.
  • the channels of the balls within the bracket are advantageous against the Axis of the tool inclined - preferably by 60 ° - because this engages of the screw head facilitates and the rest position against unwanted Removing the screw head reinforced.
  • the first embodiment of the screw-in tool shown in FIGS. 1-3 has a shaft 1 that has one at one end - here two-part - hexagon 2 for non-rotatable insertion into the tool holder a prime mover.
  • the other end is to a bit 3 molded, the circumferential configuration of the engagement recess of the screw to be used.
  • Bit 3 is surrounded by a bell of a screw holder 4, which in this example is fixed to the shaft 1 connected is.
  • the holder 4 opens into a ring 5, which the screw-in bit 3 concentrically surrounds, but axially protrudes something that is from the axial relation of the engagement recess in the screw head to Bottom of the screw head results.
  • the ring 5 closes an annular groove 6 in the holder 4 towards the open end.
  • a spring element 7 placed, which consists for example of a rubber ring and radial exerts inward biasing forces on balls 8 which are in the cross-sectional plane the annular groove 6 radially, distributed over the circumference of the holder 4 are held in radial bores or channels 9.
  • the balls 8 are secured in that the openings 10 in the substantially cylindrical channels 9 to the inside of the posture 4 something are smaller than the diameter of the channels 9.
  • the spherical ring described above which due to its Spring loading forms a locking device, has the inner surface of the bracket 4 a system 11 in the form of a dome-shaped ring section, which is adapted to the surface of the screw heads.
  • Fig. 6 illustrates the screwing in of a screw 20, which one with Threaded shaft 21, a drill tip 22 and a head 23.
  • the head 23 has a recess 24 which serves as a tool engagement and its configuration is negatively complementary to the positive configuration of bit 3.
  • the recess 24 is surrounded by an annular one Screw head surface 25, which - at least essentially - the inner surface system 11 corresponds to the holder 4.
  • a metal washer 26 and a sealing washer are pre-assembled 27 made of an elastic material such as rubber, plastic or the like.
  • the screw-in tool of FIGS. 1-3 is in FIG. 6 of a - in the longitudinal direction adjustable - sleeve 12 surrounded, the front edge 13 in the unloaded Condition of the holder 4 slightly protruding in the direction of the tool axis 14 and serves to switch off the prime mover when the screw 20 has reached its screw-in position (Fig. 6c); for this reason the sleeve is 12th Compatible with the screwing tool in the direction of the axis 14.
  • the second embodiment which is in perspective in Fig. 4 and in Longitudinal section in Fig. 7 - again in three different Operating stages - is shown, differs from the previously described embodiment in that the holder 4 is rotatably arranged on the shaft 1. It is in one axial direction by a locking ring 15 and in the other axial direction held by a sleeve 16, the latter is by means of a grub screw 17 attached to the shaft 1. In this way the holder 4 remains in relation to that even when the tool is still rotating Sheet 30 at rest when the bracket in the stage of Fig. 7c in contact the sheet 30 should come. Damage to the surface of the sheet 30 through the bracket 4 is excluded.
  • FIGS. 9 and 10 of the previously described Screw-in device does not differ with regard to the shaft 1 the hexagon 2 and bit 3 of that.
  • the bracket 4 with the Ring 5 is the same, except for the different connections the holder 4 with the shaft 1 (FIGS. 4 and 5) can be provided.
  • the holding elements in the ring 5 are not balls, but instead cylindrical pins arranged in the ring 5 of the holder 4 32 are. Both ends 33 of all cylinder pins 32 are in the holder 4 or its ring 5 and protrude laterally with its central portion 34 the space circumscribed by ring 5.
  • the cylinder pins 32 are held like the balls 8 in the first embodiment of an annular spring element 7, which holds its ends 33 in the annular groove 6 and when it snaps into place a screw head 23 allows a radial evasion of the pins 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP02026716A 2002-05-16 2002-11-30 Dispositif pour tenir et visser des vis Withdrawn EP1362672A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10222230 2002-05-16
DE2002122230 DE10222230C1 (de) 2002-05-16 2002-05-16 Vorrichtung zum Halten und Eindrehen von Schrauben

Publications (2)

Publication Number Publication Date
EP1362672A2 true EP1362672A2 (fr) 2003-11-19
EP1362672A3 EP1362672A3 (fr) 2007-10-31

Family

ID=7714550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02026716A Withdrawn EP1362672A3 (fr) 2002-05-16 2002-11-30 Dispositif pour tenir et visser des vis

Country Status (2)

Country Link
EP (1) EP1362672A3 (fr)
DE (1) DE10222230C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018231976A1 (fr) * 2017-06-13 2018-12-20 NN, Inc. Adaptateur comprenant un mécanisme de libération rapide

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026080A1 (de) * 2007-05-25 2008-11-27 Swg Schraubenwerk Gaisbach Gmbh Halterungsanordnung
DE102008018535B4 (de) 2008-04-12 2010-04-01 Dreiss, Fuhlendorf, Steimle & Becker Orale Schrauben- und/oder Nagelhalterung
DE102009003404B4 (de) 2009-01-29 2019-03-21 Wera Werkzeuge Gmbh Schraubenhalter
DE202012100244U1 (de) 2012-01-24 2012-05-16 Yih Cheng Factory Co., Ltd. Spannfutter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB225620A (en) * 1923-09-05 1924-12-05 Cons Pneumatic Tool Company Lt Improvements in or relating to screw-driving attachments or appliances for use with pneumatic, electric or other machine tools
US2015878A (en) * 1932-12-12 1935-10-01 Illinois Tool Works Coupling and driving device
US5065649A (en) * 1990-08-21 1991-11-19 Bulter Manufacturing Company Device for holding fasteners
US5129292A (en) * 1991-02-06 1992-07-14 Ocean Shore Toys Disposable holder for starting screws
DE4205525A1 (de) * 1992-02-24 1993-08-26 Rita Neumann Schraubenzieher bei dem die schrauben, von kugeln durch federdruck gehalten werden
FR2712521A1 (fr) * 1993-11-19 1995-05-24 Medinov Sa Dispositif préhenseur adaptable à l'extrémité de manÓoeuvre d'un tourne vis notamment.
GB2324261A (en) * 1997-04-15 1998-10-21 Alistair Mcleod Gripping accessory

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1603888C3 (de) * 1967-05-09 1975-12-11 Kajetan 8170 Bad Toelz Leitner Futter zum Spannen von Kopf- und Stiftschrauben beim Einschraubvorgang
US5101698A (en) * 1990-05-24 1992-04-07 Bernardo Paradiso Screw head depth limiter
US5085645A (en) * 1990-08-15 1992-02-04 Becton, Dickinson And Company Apparatus and method for a catheter adapter with valve
DE19506336C2 (de) * 1995-02-23 1997-03-20 Sfs Ind Holding Ag An eine Antriebseinheit anbaubare Vorrichtung zum Eindrehen von Schrauben
DE19650799C1 (de) * 1996-12-06 1998-07-02 Sfs Ind Holding Ag Nuß zur Aufnahme eines oder zum Einsetzen in einen Befestigerkopf(es)
DE19712784C2 (de) * 1997-03-26 1999-02-11 Sfs Ind Holding Ag Schraube
DE19723056C1 (de) * 1997-06-02 1998-10-15 Sfs Ind Holding Ag Vorsatz für einen Schrauber

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB225620A (en) * 1923-09-05 1924-12-05 Cons Pneumatic Tool Company Lt Improvements in or relating to screw-driving attachments or appliances for use with pneumatic, electric or other machine tools
US2015878A (en) * 1932-12-12 1935-10-01 Illinois Tool Works Coupling and driving device
US5065649A (en) * 1990-08-21 1991-11-19 Bulter Manufacturing Company Device for holding fasteners
US5129292A (en) * 1991-02-06 1992-07-14 Ocean Shore Toys Disposable holder for starting screws
DE4205525A1 (de) * 1992-02-24 1993-08-26 Rita Neumann Schraubenzieher bei dem die schrauben, von kugeln durch federdruck gehalten werden
FR2712521A1 (fr) * 1993-11-19 1995-05-24 Medinov Sa Dispositif préhenseur adaptable à l'extrémité de manÓoeuvre d'un tourne vis notamment.
GB2324261A (en) * 1997-04-15 1998-10-21 Alistair Mcleod Gripping accessory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018231976A1 (fr) * 2017-06-13 2018-12-20 NN, Inc. Adaptateur comprenant un mécanisme de libération rapide

Also Published As

Publication number Publication date
DE10222230C1 (de) 2003-07-31
EP1362672A3 (fr) 2007-10-31

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