EP0755753A1 - Outil de vissage - Google Patents

Outil de vissage Download PDF

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Publication number
EP0755753A1
EP0755753A1 EP96810344A EP96810344A EP0755753A1 EP 0755753 A1 EP0755753 A1 EP 0755753A1 EP 96810344 A EP96810344 A EP 96810344A EP 96810344 A EP96810344 A EP 96810344A EP 0755753 A1 EP0755753 A1 EP 0755753A1
Authority
EP
European Patent Office
Prior art keywords
spindle
spring
drive pinion
stop
radially
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.)
Granted
Application number
EP96810344A
Other languages
German (de)
English (en)
Other versions
EP0755753B1 (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, a motor arranged in the housing, an axially fixed drive pinion driven by the motor, a spindle mounted in the housing and axially displaceable against the force of a spring relative to the drive pinion, and a coupling element between the drive pinion and the spindle.
  • a screwdriver with a clutch which has a first coupling part driven by a motor, an axially displaceable second coupling part which is rotatably mounted in the housing of the screwdriver and a circumferentially limited rotatable and axially against the force of a spring has displaceable third coupling part.
  • the first coupling part is formed by a drive pinion with cam bodies protruding in the setting direction.
  • 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 which is provided with cam bodies on both end faces.
  • the spindle When the screwing device is pressed on, the spindle is axially offset against the force of the spring with the interposition of the coupling element, so that all cam bodies engage in a form-fitting manner.
  • the coupling element When a torque is transmitted from the drive pinion to the spindle, the coupling element is rotated relative to the spindle and axially offset. This position of the coupling element with respect to the spindle is maintained until the spindle is displaced in the setting direction after a screwing-in process has taken place 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 coupling for a hand-held device that is economical to manufacture and is characterized by a low weight and low wear.
  • the object is achieved in that the coupling element is radially displaceable in a radially extending passage opening of the drive pinion by means of an actuating element and cooperates in the radially inserted position with at least one stop surface of the spindle and that the spindle has stops for axially displacing the actuating element.
  • the coupling according to the invention can be produced economically, since all of the individual parts are simple in their construction, are light in weight and therefore have a positive effect on the total weight of the hand-held device.
  • the stops arranged on the spindle enable the actuating element to be displaced.
  • the coupling element is advantageously a ball.
  • the inventive design of the coupling element as a ball enables economical production of the hand-held device, since the ball is a commercially available item that can be bought in, the ball being guided in the passage opening of the drive pinion and the stop surface interacting with the ball directly on the spindle and the drive pinion can be attached.
  • Another advantage is the small size of the coupling element and its low weight, which has a positive effect on the total weight of the hand-held device.
  • the stop pointing in the setting direction is preferably a spring element, the spring force of which corresponds at most to the spring force of the spring.
  • This offers a simple construction by placing the actuating sleeve axially in front of the coupling element in the setting direction is arranged so that overcoming the spring force of the spring element, the coupling element is inserted and automatically disengaged when relaxed.
  • An axial fixing of the actuating element with respect to the drive pinion is expediently achieved by a stop pointing counter to the setting direction, which is formed by a latching element.
  • a holding element cooperating with the spindle is preferably provided for holding the latching element in its latched position.
  • An automatic, axial fixing of the actuating element on the drive pinion is achieved in that the holding element is advantageously acted upon by the spring element.
  • the spindle is supported on the spring element and sets this under preload when it is axially displaced.
  • a simple, axial fixing of the actuating element on the drive pinion is preferably achieved with a latching element which is formed by a radially displaceable latching ball which interacts with a shoulder of the actuating sleeve.
  • the holding element advantageously interacts with an unlocking element arranged on the spindle. In this way, a displacement of the holding element and an unlocking of the latching element is achieved when the spindle moves in relation to the housing or relative to the depth stop in the setting direction.
  • a housing 1 has a housing 1, a handle 16 with an actuating switch 17 for an electric motor 2, an adjustable depth stop 18 and a spindle 5 which can be axially displaced against the force of a spring 4.
  • FIGS. 2 to 4 show, in the housing 1 there is a motor 2, a drive pinion 3 driven by the motor 2, a coupling element 6 in the form of a ball, an actuating element 8, a latching element 15 in the form of a ball, and a holding element 14 with a stop 11, a spring element 12 between the holding element 14 and the actuating element 8, a spring plate 19, a spring 4 between the spring plate 19 and the drive pinion 3, an axially displaceable spindle 5 and a counter to the setting direction, with the spindle 5 in connection standing stop 10 arranged.
  • 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 coupling element 6 in the form of a ball is arranged and can be radially displaced by means of the actuating element 8.
  • the coupling element 6 can be connected to a stop surface 9 in the form of a longitudinal groove 22 of the spindle 5 which extends in the longitudinal direction of the spindle 5. In this way, a rotationally fixed connection between the spindle 5 and the drive pinion 3 is achieved.
  • the actuating element 8 surrounds the collar 20 of the drive pinion 3 and is telescopically displaceable relative to the latter.
  • a shoulder 13 is arranged in the form of a circumferential recess, which can be connected to the locking element in the form of a locking ball 15.
  • the spherical locking element is arranged in the second passage opening 21 of the collar 20 of the drive pinion 3 and can be displaced radially by means of a holding element 14.
  • the wall thickness of the collar 20 tapers towards the outer contour of the collar 20.
  • the spring plate 19 partially surrounds the actuating element 8 and can be displaced telescopically relative to it.
  • the spring 4 arranged between the spring plate 19 and the drive pinion 3 surrounds the actuating element 8, which is designed in the form of a sleeve with a bottom that is partially closed on one side.
  • the spindle 5 has a circumferential recess 24 which serves to receive an unlocking element 25 in the form of an O-ring.
  • the end face of the spindle 5 on the setting direction can be connected to a bit.
  • the spindle 5 is axially displaced together with the spring plate 19 and the actuating element 8 against the spring 4.
  • the screw, the background and the bit are not shown.
  • the coupling element 6 designed as a ball is displaced radially by the actuating element 8 so that it dips into the longitudinal groove 22 arranged on the spindle 5. In this way, the spindle 5 and the drive pinion 3 are rotationally connected to one another.
  • the annular holding element 14 is also moved until it rests on the latching ball 15, which is captively arranged in a second passage opening 21 of the collar 20 projecting from the drive pinion 3 in the setting direction.
  • a radial force component is applied to the detent ball 15 by the oblique edge 23 of the holding element 14.
  • the shoulder 13 arranged on the inner contour of the actuating element 8 comes to lie in the form of a circumferential groove above the detent ball 15 and the spring element 12 can hold the holding element 14 further to the right and thus the detent ball 15 Press radially outwards into the groove.
  • the actuating element 8 is locked against the drive pinion 3.
  • the depth stop 18 comes into contact with the base and is supported on it.
  • the spindle 5 continues to rotate and moves in the setting direction by the force of the spring 4.
  • the spring plate 19 is also displaced in the setting direction.
  • the unlocking element 25 is displaced in the form of an O-ring in the setting direction against the holding element 14, so that it moves in the setting direction and releases the locking ball 15.
  • the unlocking element 25 is seated in a circumferential recess 24 in the spindle 5.
  • the spring element 12 then shifts the actuating element 8 in the setting direction.
  • the ball 6, which connects the drive pinion 3 and the spindle 5 in a rotationally fixed manner is displaced radially, so that the rotationally fixed connection is released.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
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
DE19527192A DE19527192A1 (de) 1995-07-26 1995-07-26 Schraubgerät
DE19527192 1995-07-26

Publications (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9945009B2 (en) 2011-03-18 2018-04-17 Orbite Technologies Inc. Processes for recovering rare earth elements from aluminum-bearing materials

Families Citing this family (28)

* 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
US6665923B2 (en) 2001-06-29 2003-12-23 Porter-Cable/Delta Clutch for a screw gun and utilizing method
US7047848B2 (en) * 2001-06-29 2006-05-23 Portar-Cable/Delta Manufacture of steel components for screw gun clutches
GB0213289D0 (en) * 2002-06-11 2002-07-24 Black & Decker Inc Rotary hammer
US20050139445A1 (en) * 2002-12-12 2005-06-30 Bosk Brian K. Wedge clutch assembly
US20060135267A1 (en) * 2002-12-12 2006-06-22 Bosk Brian K Wedge clutch assembly
US6848998B2 (en) 2002-12-12 2005-02-01 Brian K. Bosk Wedge clutch assembly
US8439763B2 (en) * 2002-12-12 2013-05-14 Brian K. Bosk 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
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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1343388A (en) * 1971-11-11 1974-01-10 Ingersoll Rand Co Power tool clutch
DE3330962A1 (de) * 1983-08-27 1985-03-21 Eberhard Dipl.-Ing. Beyhl (FH), 8503 Altdorf Schraubbegrenzungsvorrichtung
EP0195853A1 (fr) * 1985-03-23 1986-10-01 C. & E. FEIN GmbH & Co. Accouplement pour outils à visser entraînés par la force motrice
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
EP0476999A1 (fr) * 1990-09-19 1992-03-25 Makita Corporation Tournevis actionné par moteur
DE4333599A1 (de) * 1992-10-01 1994-04-07 Makita Corp Schraubeneindrehwerkzeug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951756A (en) * 1989-05-16 1990-08-28 Chicago Pneumatic Tool Company Torque control screwdriver
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
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1343388A (en) * 1971-11-11 1974-01-10 Ingersoll Rand Co Power tool clutch
DE3330962A1 (de) * 1983-08-27 1985-03-21 Eberhard Dipl.-Ing. Beyhl (FH), 8503 Altdorf Schraubbegrenzungsvorrichtung
EP0195853A1 (fr) * 1985-03-23 1986-10-01 C. & E. FEIN GmbH & Co. Accouplement pour outils à visser entraînés par la force motrice
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
EP0476999A1 (fr) * 1990-09-19 1992-03-25 Makita Corporation Tournevis actionné par moteur
DE4333599A1 (de) * 1992-10-01 1994-04-07 Makita Corp Schraubeneindrehwerkzeug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9945009B2 (en) 2011-03-18 2018-04-17 Orbite Technologies Inc. Processes for recovering rare earth elements from aluminum-bearing materials

Also Published As

Publication number Publication date
EP0755753B1 (fr) 1998-08-12
US5778989A (en) 1998-07-14
DE59600423D1 (de) 1998-09-17
JPH0938869A (ja) 1997-02-10
DE19527192A1 (de) 1997-01-30

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