EP0755753B1 - Outil de vissage - Google Patents

Outil de vissage Download PDF

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Publication number
EP0755753B1
EP0755753B1 EP96810344A EP96810344A EP0755753B1 EP 0755753 B1 EP0755753 B1 EP 0755753B1 EP 96810344 A EP96810344 A EP 96810344A EP 96810344 A EP96810344 A EP 96810344A EP 0755753 B1 EP0755753 B1 EP 0755753B1
Authority
EP
European Patent Office
Prior art keywords
spindle
drive pinion
spring
coupling
locking
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
EP96810344A
Other languages
German (de)
English (en)
Other versions
EP0755753A1 (fr
Inventor
Anton Neumaier
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Publication of EP0755753A1 publication Critical patent/EP0755753A1/fr
Application granted granted Critical
Publication of EP0755753B1 publication Critical patent/EP0755753B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Definitions

  • the invention relates to a handheld device, such as a screwdriver; with a housing, an in Housing arranged motor, an axially fixed drive pinion driven by the motor one in the housing, against the force of a spring against the drive pinion axially displaceable spindle and a coupling element between the drive pinion and the spindle.
  • Electrically powered screws are used to screw in the surface Screwdrivers used with a disconnect coupling that is between a spindle and a Drive pinion is arranged.
  • the separating clutch allows after reaching the an automatic, noise and wear-free uncoupling the spindle from the drive pinion.
  • a screwdriver with a coupling is known, the one of a motor-driven first coupling part, one in the housing of the screwing device rotatably mounted, axially displaceable second coupling part and a circumferential direction limited rotatable and axially displaceable against the force of a spring third Has coupling part.
  • the first coupling part is formed by a drive pinion with in Setting direction protruding cam body.
  • the second coupling part is formed by a spindle with cam bodies protruding counter to the setting direction and the third Coupling part is formed by a coupling element that with on both face sides Cam body is provided.
  • the spindle When the screwing device is pressed on, the spindle is interposed with the Coupling element axially offset against the force of the spring, so that all cam bodies interlock positively.
  • the coupling element When transmitting a torque from that Drive pinion on the spindle, the coupling element is rotated relative to the spindle and axially offset. This position of the coupling element relative to the spindle remains received until the spindle is displaced in the setting direction after a screwing-in process until the positive connection between the cam bodies of the drive pinion and the coupling element is canceled.
  • the invention has for its object to provide a clutch for a handheld device, the is economical to manufacture and is lightweight and lightweight Excellent wear.
  • the coupling according to the invention can be produced economically, since all individual parts are simple in structure, have a low weight, and are therefore positive affect the total weight of the handheld device.
  • the arranged on the spindle Stops enable the actuating element to be displaced.
  • the coupling element is advantageously a ball.
  • the configuration according to the invention of the coupling element as a ball enables economical production of the handheld device, since the ball is a commercially available item that can be bought, the ball in the passage opening of the drive pinion is guided and the stop surface interacting with the ball directly on the spindle and can be attached to the drive pinion.
  • Another advantage is the low Size of the coupling element and its light weight, which affects the Total weight of the handheld device has a positive effect.
  • the in pointing in the axial direction from the drive pinion Stop a spring element whose Spring force corresponds at most to the spring force of the spring.
  • This is a simple one Design by placing the actuating sleeve axially in front of the coupling element in the setting direction is arranged so that the overcoming the spring force of the spring element Coupling element is inserted and automatically disengaged when relaxing.
  • An axial fixing of the actuating element with respect to the drive pinion is conveniently from one in the axial direction to the drive pinion pointing stop reached, which is formed by a locking element.
  • the actuating element is axially fixed relative to the drive pinion can be achieved, is preferably a holding element cooperating with the spindle provided for holding the locking element in its locked position.
  • a simple, axial fixing of the actuating element on the drive pinion will preferably achieved with a locking element, which by a radially displaceable a shoulder of the actuating sleeve interacting locking ball is formed.
  • the holding element advantageously acts with one arranged on the spindle Unlocking element together. In this way, a transfer of the Holding element and an unlocking of the locking element is reached when the spindle relative to the housing or against the depth stop in the setting direction.
  • the screwing device shown in Fig. 1 has a housing 1, a handle 16 with actuating switch 17 for an electric motor 2, an adjustable depth stop 18 and a spindle 5 axially displaceable against the force of a spring 4.
  • FIG. 2 to 4 show, in the housing 1 is a motor 2, a motor 2 driven Drive pinion 3, a coupling element 6 in the form of a ball, an actuating element 8, a locking element 15 in the form of a ball, a holding element 14 with a Stop 11, a spring element 12 between the holding element 14 and the Actuator 8, a spring plate 19, a spring 4 between the spring plate 19 and the drive pinion 3, an axially displaceable spindle 5 and one against the setting direction pointing stop 10 connected to the spindle 5.
  • the drive pinion 3 is axially fixed and freely rotatable on the spindle 5.
  • a collar 20 of the drive pinion 3 which projects in the setting direction and surrounds the spindle 5 has a first passage opening 7 and a second passage opening 21.
  • the toothed area of the drive pinion 3 is closer arranged in the form of a ball coupling element 6, and by means of Actuating element 8 radially displaceable.
  • the coupling element 6 is with a Stop surface 9 in the form of a longitudinal groove extending in the longitudinal direction of the spindle 5 22 of the spindle 5 can be connected. In this way, a non-rotatable connection reached between the spindle 5 and the drive pinion 3.
  • the actuating element 8 surrounds the collar 20 of the drive pinion 3 and is opposite this telescopically displaceable.
  • On the inner contour of the actuating element 8 is a Shoulder 13 arranged in the form of a circumferential recess, which with the Locking element in the form of a locking ball 15 can be connected.
  • the spherical locking element is in the second passage opening 21 of the federal government 20 of the Drive pinion 3 arranged and radially displaceable by means of a holding element 14.
  • the wall thickness of the collar 20 tapers in the area of the second passage opening 21 conical towards the outer contour of the federal government 20. That, surrounding the spindle 5, opposite the spindle 5 axially displaceable holding element 14 is annular and has one inclined edge 23, which together with the conical taper of the federal government 20 has the effect that the axial displacement of the holding element 14 relative to the collar 20 Locking ball 15 is displaced radially.
  • the spring plate 19 partially surrounds the actuating element 8 and is opposite it telescopic.
  • the between the spring plate 19 and the drive pinion 3rd arranged spring 4 surrounds the actuating element 8 in the form of a sleeve with a Bottom partially closed bottom is formed.
  • the spindle 5 has a circumferential trained recess 24 on the inclusion of an unlocking element 25 in Shape of an O-ring.
  • the end face of the spindle 5 on the setting direction is included connectable to a bit.
  • the screw, the base and the bit are not shown.
  • the coupling element 6 designed as a ball is thereby from Actuating element 8 radially offset so that it is arranged in the spindle 5 Longitudinal groove 22 dips. In this way, the spindle 5 and the drive pinion 3 rotationally connected to each other.
  • the annular holding element 14 When the spindle 5 is axially displaced, the annular holding element 14 also becomes moves until it rests on the locking ball 15, which is captive in a second Passage opening 21 of the collar 20 projecting from the drive pinion 3 in the setting direction is arranged. Through the oblique edge 23 of the holding element 14, the locking ball 15 applied with a radial force component. Once the axial movement of the Actuating element 8 has reached the end position, which comes on the inner contour of the Actuating element 8 arranged shoulder 13 in the form of a circumferential design Groove to lie over the locking ball 15 and the spring element 12 can the holding element 14th continue to the right and thus press the locking ball 15 radially outwards into the groove. In order to the actuating element 8 is locked with respect to the drive pinion 3.
  • the depth stop comes just before the screw reaches the desired screw-in depth 18 in contact with the base and is supported on this.
  • the spindle 5 rotates further and moves by the force of the spring 4 in the setting direction. There is also a Displacement of the spring plate 19 in the setting direction.
  • the unlocking element 25 is in the form of an O-ring in Setting direction shifted against the holding element 14 so that it is in the setting direction moves and the locking ball 15 releases.
  • the unlocking element 25 is seated in a circumferential manner formed recess 24 of the spindle 5.
  • the spring element 12 then shifts the actuating element 8 in the setting direction. This causes the ball 6, which is the drive pinion 3 and the spindle 5 connects non-rotatably, radially offset, so that the non-rotatable connection will be annulled.

Landscapes

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

Claims (9)

  1. Outil portatif, tel qu'outil de vissage, comprenant un boítier (1), un moteur (2) disposé dans le boítier (1), un pignon d'entraínement immobile axialement (3) qui est entraíné par le moteur (2) et qui entraíne une broche (5) logée dans le boítier (1) avec une possibilité de déplacement axial à l'encontre de la force d'un ressort (4) par rapport au pignon d'entraínement (3), et un élément d'accouplement (6) disposé entre le pignon d'entraínement (3) et la broche (5), caractérisé en ce que l'outil portatif comporte un élément d'actionnement à translation axiale (8), en ce que l'élément d'accouplement (6) peut se déplacer radialement dans une ouverture débouchante radiale (7) du pignon d'entraínement (3) lors de la translation axiale de l'élément d'actionnement (8) et, en position enfoncée radialement, coopère avec au moins une surface de butée (9) de la broche (5) de façon à solidariser la broche (5) en rotation avec le pignon d'entraínement (3), et en ce que la broche (5) comporte des butées (10, 11) pour la translation axiale de l'élément d'actionnement (8).
  2. Outil selon la revendication 1, caractérisé en ce que l'élément d'accouplement (6) est une bille.
  3. Outil selon la revendication 1 ou 2, caractérisé en ce que la broche (5) comporte deux butées (10, 11) disposées à distance axiale l'une de l'autre.
  4. Outil selon l'une des revendications 1 à 3, caractérisé en ce que la butée (11) tournée à l'opposé du pignon d'entraínement (3) dans la direction axiale est formée par un élément élastique (12) dont la force élastique correspond au maximum à la force élastique du ressort (4).
  5. Outil selon l'une des revendications 1 à 4, caractérisé en ce que la butée (10) tournée vers le pignon d'entraínement (3) dans la direction axiale est formée par un élément d'encliquetage.
  6. Outil selon la revendication 5, caractérisé en ce qu'un élément de retenue (14) coopérant avec la broche (5) est prévu pour retenir l'élément d'encliquetage en position encliquetée.
  7. Outil selon la revendication 6, caractérisé en ce que l'élément de retenue (14) est sollicité par l'élément élastique (12).
  8. Outil selon la revendication 5 ou 6, caractérisé en ce que l'élément d'encliquetage est formé par une bille d'encliquetage à translation radiale (15) qui coopère avec un épaulement (13) de l'élément d'actionnement (8).
  9. Outil selon l'une des revendications 6 à 8, caractérisé en ce que l'élément de retenue (14) coopère avec un élément de déverrouillage (25) disposé sur la broche (5).
EP96810344A 1995-07-26 1996-05-29 Outil de vissage Expired - Lifetime EP0755753B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19527192 1995-07-26
DE19527192A DE19527192A1 (de) 1995-07-26 1995-07-26 Schraubgerät

Publications (2)

Publication Number Publication Date
EP0755753A1 EP0755753A1 (fr) 1997-01-29
EP0755753B1 true EP0755753B1 (fr) 1998-08-12

Family

ID=7767767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810344A Expired - Lifetime EP0755753B1 (fr) 1995-07-26 1996-05-29 Outil de vissage

Country Status (4)

Country Link
US (1) US5778989A (fr)
EP (1) EP0755753B1 (fr)
JP (1) JPH0938869A (fr)
DE (2) DE19527192A1 (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3291609B2 (ja) * 1996-02-13 2002-06-10 株式会社マキタ 電動工具のクラッチ機構
SE520916C2 (sv) * 1999-12-28 2003-09-09 Atlas Copco Tools Ab Mutterdragare med momentkoppling med utlösningssensor för kraftavstängning
KR100545408B1 (ko) * 2000-10-18 2006-01-24 마크스 가부시기가이샤 공기충격식 드라이버
US6758116B2 (en) * 2001-06-28 2004-07-06 Porter-Cable/Delta Depth adjusting system for a screw gun
US7047848B2 (en) * 2001-06-29 2006-05-23 Portar-Cable/Delta Manufacture of steel components for screw gun clutches
US6665923B2 (en) 2001-06-29 2003-12-23 Porter-Cable/Delta Clutch for a screw gun and utilizing method
GB0213289D0 (en) * 2002-06-11 2002-07-24 Black & Decker Inc Rotary hammer
US20060135267A1 (en) * 2002-12-12 2006-06-22 Bosk Brian K Wedge clutch assembly
US8439763B2 (en) * 2002-12-12 2013-05-14 Brian K. Bosk Wedge clutch assembly
US6848998B2 (en) 2002-12-12 2005-02-01 Brian K. Bosk Wedge clutch assembly
US20050139445A1 (en) * 2002-12-12 2005-06-30 Bosk Brian K. Wedge clutch assembly
US20090038904A1 (en) * 2002-12-12 2009-02-12 Bosk Brian K Wedge clutch assembly
DE10305065A1 (de) * 2003-02-07 2004-08-26 Stankiewicz Gmbh Verfahren und Vorrichtung zur thermischen Formgebung von Verkleidungsteilen
EP1468789A3 (fr) * 2003-04-17 2008-06-04 BLACK & DECKER INC. Embrayage pour outil électrique rotatif et outil électrique rotatif incorporant un tel embrayage
DE102004042952A1 (de) * 2004-09-06 2006-03-23 Hilti Ag Schraubgerät mit axial wirkendem Schlagmechanismus
JP2007050454A (ja) * 2005-08-12 2007-03-01 Hitachi Koki Co Ltd インパクト工具
US20070089891A1 (en) * 2005-10-26 2007-04-26 Hsin-Chi Chen Anti-disengagement structure for guide balls of a striking unit
DE102006000252A1 (de) * 2006-05-30 2007-12-06 Hilti Ag Handwerkzeugmaschine mit Rutschkupplung
KR100968946B1 (ko) * 2008-03-31 2010-07-14 주식회사 제일메디칼코퍼레이션 토크조절 드라이버
USD609544S1 (en) 2009-02-24 2010-02-09 Black & Decker, Inc. Drill driver
US8267192B2 (en) 2009-02-24 2012-09-18 Black & Decker Inc. Ergonomic handle for power tool
DE102009027951A1 (de) * 2009-07-23 2011-01-27 Robert Bosch Gmbh Handwerkzeugmaschine, insbesondere akkubetriebene Elektrohandwerkzeugmaschine
USD617622S1 (en) 2009-09-30 2010-06-15 Black & Decker Inc. Impact driver
USD626394S1 (en) 2010-02-04 2010-11-02 Black & Decker Inc. Drill
USD646947S1 (en) 2010-08-13 2011-10-18 Black & Decker Inc. Drill
WO2012126092A1 (fr) 2011-03-18 2012-09-27 Orbite Aluminae Inc. Procédés permettant de récupérer des éléments de terres rares à partir de matériaux renfermant de l'aluminium
JP6290041B2 (ja) * 2014-08-27 2018-03-07 株式会社マキタ ねじ締め工具
US10753175B2 (en) * 2018-08-01 2020-08-25 Baker Hughes, A Ge Company, Llc Valve and method
EP3900881A1 (fr) * 2020-04-23 2021-10-27 Hilti Aktiengesellschaft Machine-outil portative électrique pourvue d'embrayage à butée à billes

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BE789362A (fr) * 1971-11-11 1973-01-15 Ingersoll Rand Co Accouplement d'outils a moteur
DE3330962A1 (de) * 1983-08-27 1985-03-21 Eberhard Dipl.-Ing. Beyhl (FH), 8503 Altdorf Schraubbegrenzungsvorrichtung
DE3510605A1 (de) * 1985-03-23 1986-10-02 C. & E. Fein Gmbh & Co, 7000 Stuttgart Kupplung fuer kraftgetriebene schraubwerkzeuge
DE3610749A1 (de) * 1986-03-29 1987-10-01 Helfer & Co Kg Kraftantreibbarer schraubkopf
DE3818924A1 (de) * 1987-12-08 1989-06-29 Makita Electric Works Ltd Kraftgetriebenes schraubwerkzeug
US4951756A (en) * 1989-05-16 1990-08-28 Chicago Pneumatic Tool Company Torque control screwdriver
JPH0825146B2 (ja) * 1990-09-19 1996-03-13 株式会社マキタ 電動スクリュードライバにおけるクラッチ装置
JP2558753Y2 (ja) * 1991-10-31 1998-01-14 株式会社マキタ 回転電動工具の動力伝達機構
US5372206A (en) * 1992-10-01 1994-12-13 Makita Corporation Tightening tool
US5505676A (en) * 1994-01-25 1996-04-09 The Stanley Works Clutch torque control
JP3284759B2 (ja) * 1994-06-09 2002-05-20 日立工機株式会社 インパクトドライバ
US5588496A (en) * 1994-07-14 1996-12-31 Milwaukee Electric Tool Corporation Slip clutch arrangement for power tool

Also Published As

Publication number Publication date
US5778989A (en) 1998-07-14
JPH0938869A (ja) 1997-02-10
EP0755753A1 (fr) 1997-01-29
DE59600423D1 (de) 1998-09-17
DE19527192A1 (de) 1997-01-30

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