EP0988936B1 - Outil de vissage - Google Patents

Outil de vissage Download PDF

Info

Publication number
EP0988936B1
EP0988936B1 EP99810700A EP99810700A EP0988936B1 EP 0988936 B1 EP0988936 B1 EP 0988936B1 EP 99810700 A EP99810700 A EP 99810700A EP 99810700 A EP99810700 A EP 99810700A EP 0988936 B1 EP0988936 B1 EP 0988936B1
Authority
EP
European Patent Office
Prior art keywords
coupling part
tool spindle
screwing
intermediate coupling
tool
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
EP99810700A
Other languages
German (de)
English (en)
Other versions
EP0988936A2 (fr
EP0988936A3 (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 EP0988936A2 publication Critical patent/EP0988936A2/fr
Publication of EP0988936A3 publication Critical patent/EP0988936A3/fr
Application granted granted Critical
Publication of EP0988936B1 publication Critical patent/EP0988936B1/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 screwing device according to the preamble of patent claim 1.
  • the Torque clutch is composed of a first clutch part, a second coupling part and one arranged between the two coupling parts Intermediate coupling part.
  • the first coupling part is designed as a gear and is in non-rotatable connection with a drive motor.
  • the second coupling part stands with one Tool spindle in connection, a screw-in tool at the free end on the direction of rotation receives.
  • the intermediate coupling part rotatably arranged on the tool spindle is disc-shaped and is used for torque transmission from the first coupling part to the second coupling part.
  • the invention has for its object to provide a screwdriver that is economical can be produced and quickly and securely screwed into an underground can be turned.
  • the one pointing in the direction of rotation is advantageous Stop of the tool spindle of a in a circumferential groove Tool spindle arranged circlip formed.
  • the second coupling part expediently points on the in the direction of rotation facing side has a locking contour in the form of a tooth-shaped profile, in the starting position of the tool spindle with a positive fit corresponding locking contour of the housing interacts.
  • FIG Housing 1 The part of a screwing device according to the invention shown in FIG Housing 1, one via a threaded connection, opposite the housing 1 parallel to Depth stop 2 adjustable in the direction of rotation, one relative to the housing 1 displaceable tool spindle 8, a drive motor, not shown, with a Drive shaft 7 and one between the tool spindle 8 and the drive shaft 7 arranged torque clutch 3.
  • the tool spindle is located at an end region facing away from the torque clutch 3 8 with a tool holder 9 in connection.
  • This tool holder 9 protrudes with a hexagonal insertion end in a blind hole in the tool spindle 8 and is secured axially by means of a spring-loaded ball.
  • the free end of the tool holder 9, which is opposite the insertion end, is also with a Blind hole provided that the inclusion of a screwing tool 14 in the form a screw bit is used.
  • This screw bit protrudes into a cross-slit Receiving area of a screw 12 which is screwed into a base 13 shall be.
  • the torque clutch 3 has a first clutch part 4 and a second clutch part 6 and an intermediate coupling part 5.
  • the first coupling part 4 is rotatable, but axially firmly mounted on the tool spindle 8 and has a tooth-shaped on its peripheral contour Profiling on the form-fitting with a corresponding counter-profiling the drive shaft 7 of the drive motor cooperates.
  • On one in the direction of rotation facing side of the first coupling part 4 protrudes at least one cam 41 which positively with at least one further cam 51 of the intermediate coupling part 5 is connectable.
  • the second coupling part 6 is fixedly connected to the tool spindle 8 and projects beyond it the outer contour of the same radially.
  • a locking contour 61 which in the starting position of the screwdriver with at least one corresponding one Interlocking contour 11 of the housing cooperates.
  • the locking contours 61, 11 can be formed, for example, by tooth-shaped profiles.
  • the intermediate coupling part 5 is freely rotatably mounted on the tool spindle 8 and due to a stop 81 of the tool spindle 8 against the direction of rotation only limited transfer.
  • the stop 81 is formed by a locking ring, which in a circumferential groove of the tool spindle 8 protrudes.
  • a spring element 15 in the form of a Coil spring arranged, which in the starting position of the screwing device Intermediate coupling part 5 spaced from the second coupling part 6 against the stop 81 presses.
  • first coupling part 4 and the tool spindle 8 Spring 10 also arranged in the form of a helical spring, which the tool spindle 8th in the starting position of the screwing device into a position on the direction of rotation presses in the cams 41, 51 of the first coupling part 6 and the intermediate coupling part are axially spaced apart.
  • the screwdriver Before the screwing-in process begins, the screwdriver is in one Starting position according to FIG. 1, in which all coupling parts 4, 5, 6 of the Torque clutch 3 are axially spaced apart.
  • the drive motor In the subsequent actuation of an actuation switch, not shown the drive motor, which is also not shown in full, begins to rotate. Whose Rotational movement or torque is generated via the drive shaft 7 of the drive motor the first coupling part 4 and from there via the intermediate coupling part 5 to the second Coupling part 6 and thus transferred to the tool spindle 8.
  • the intermediate coupling part 5 is different from the first coupling part 4 and is not removed from the second coupling part 6 is that the cams 41, 51 have mutually interacting flanks that run inclined to the direction of rotation. This results from the torque to be transmitted in the direction of rotation force component that is greater than the force of the between the second coupling part 6 and the intermediate coupling part 5 arranged spring element 15.
  • the flanks of the claws 52, 62 run essentially parallel to Screwing.
  • the first coupling part 4 rotates relative to the intermediate coupling part 5 until the axial projections of the cams 41, 51 no longer cover. Because at this point in the direction of rotation no more force the intermediate coupling part 5 acts, the prestressed spring element 15 relax between the intermediate coupling part 5 and the second coupling part 6 and push the intermediate coupling part 5 to the first coupling part 4.
  • the cams 41, 51 and the claws 52, 62 different extents T1, T2, the two claws 52, 62 come out of engagement and into a position in which they are axially spaced apart at a distance T3, so that even with a continuous rotary movement of the first coupling part 4 and Intermediate coupling part 5 no more rotary movement on the tool spindle 8 can be transferred.
  • the distance T3 corresponds to the difference between the extension T2 of the cams 41, 51 and the extension T1 of the claws 52, 62nd

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Graft Or Block Polymers (AREA)
  • Dowels (AREA)
  • Materials For Medical Uses (AREA)
  • Window Of Vehicle (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Claims (3)

  1. Outil de vissage comportant un boítier (1), un moteur d'entraínement, une broche d'outil (8) déplaçable axialement, un accouplement en rotation (3) qu relie le moteur d'entraínement et la broche d'outil (8) avec une première partie d'accouplement (4) entraínée par le moteur d'entraínement, montée tournante et présentant un profilage extérieur en forme de dents, une deuxième partie d'accouplement (6) reliée solidairement en rotation à la broche d'outil (8) et une partie d'accouplement intermédiaire (5) montée tournante et coulissante axialement entre les deux parties d'accouplement (4, 6), sur la broche d'outil (8) et qui, partant d'une position d'entraínement, est déplaçable de la première partie d'accouplement (4) vers la deuxième partie d'accouplement (6), dans une position de surcharge, comportant aussi des cames (41, 51) présentant des surfaces de flanc entre la partie d'accouplement intermédiaire (5) et la première partie d'accouplement (4), pour l'écartement de celles-ci, ainsi que des griffes (52, 62) associées à des côtés frontaux, tournés l'un vers l'autre, de la deuxième partie d'accouplement (6) et de la partie d'accouplement intermédiaire (5), pour réaliser une liaison en rotation entre la partie d'accouplement intermédiaire (5) et la deuxième partie d'accouplement 56), ainsi qu'une butée de profondeur (2) disposée sur le boítier (1) et déplaçable parallèlement au sens de vissage, par rapport à laquelle la broche d'outil (8) est déplaçable, à l'encontre de la force d'un ressort (10), dans le sens contraire au sens de vissage, caractérisé en ce que l'étendue (T2) des cames (41, 51), mesurée parallèlement au sens de vissage, est supérieure à l'étendue (T1) des griffes (52, 62) et en ce qu'entre la deuxième partie d'accouplement (6) et la partie d'accouplement intermédiaire (5), est disposé un élément à ressort (15) qui presse la partie d'accouplement intermédiaire (5), en position initiale de l'outil de vissage, à distance axiale des deux parties d'accouplement (4, 6) contre une butée (81) de la broche d'outil (8).
  2. Outil de vissage selon la revendication 1, caractérisé en ce que la butée (81), dirigée dans le sens de vissage, de la broche d'outil (8), est formée par une bague de sûreté disposée dans une rainure périphérique de la broche d'outil (8).
  3. Outil de vissage selon la revendication 1 ou 2, caractérisé en ce que la deuxième partie d'accouplement (6) présente, sur le côté tourné dans le sens de vissage, un contour de verrouillage (61) qui, en position initiale de la broche d'outil (8), coopère par complémentarité de forme avec un contour de verrouillage (11) correspondant du boítier (1).
EP99810700A 1998-09-25 1999-08-05 Outil de vissage Expired - Lifetime EP0988936B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19844064A DE19844064A1 (de) 1998-09-25 1998-09-25 Schraubgerät
DE19844064 1998-09-25

Publications (3)

Publication Number Publication Date
EP0988936A2 EP0988936A2 (fr) 2000-03-29
EP0988936A3 EP0988936A3 (fr) 2000-05-10
EP0988936B1 true EP0988936B1 (fr) 2002-01-02

Family

ID=7882265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810700A Expired - Lifetime EP0988936B1 (fr) 1998-09-25 1999-08-05 Outil de vissage

Country Status (11)

Country Link
US (1) US6109149A (fr)
EP (1) EP0988936B1 (fr)
JP (1) JP2000094353A (fr)
AT (1) ATE211423T1 (fr)
AU (1) AU747945B2 (fr)
CA (1) CA2282213A1 (fr)
DE (2) DE19844064A1 (fr)
DK (1) DK0988936T3 (fr)
ES (1) ES2171069T3 (fr)
NO (1) NO311012B1 (fr)
PL (1) PL187800B1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032949A1 (de) * 2000-07-06 2002-01-17 Hilti Ag Schraubgerät
US6758116B2 (en) * 2001-06-28 2004-07-06 Porter-Cable/Delta Depth adjusting system for a screw gun
DE10348517B4 (de) * 2003-10-18 2010-03-18 Hilti Aktiengesellschaft Schraubgerät
DE10360282A1 (de) * 2003-12-20 2005-07-14 Hilti Ag Handbohrschrauber mit geräuscharmer Drehmomentkupplung
DE102004011068B3 (de) * 2004-03-06 2005-06-23 Hilti Ag Schraubgerät mit Drehmomentkupplung
DE102004042952A1 (de) * 2004-09-06 2006-03-23 Hilti Ag Schraubgerät mit axial wirkendem Schlagmechanismus
US7185562B2 (en) * 2004-12-08 2007-03-06 Osteomed L.P. Disposable battery powered screw driver, locking mechanism, and accessories
JP2006315093A (ja) * 2005-05-10 2006-11-24 Hitachi Koki Co Ltd インパクト工具
GB2426797B (en) 2005-06-01 2010-11-24 Milwaukee Electric Tool Corp Power tool
US7665392B2 (en) * 2006-02-08 2010-02-23 Makita Corporation Tightening tool
JP5203129B2 (ja) * 2008-10-16 2013-06-05 株式会社マキタ 回転工具
DE102011078384A1 (de) 2011-06-30 2013-01-03 Robert Bosch Gmbh Trockenbauschrauber
DE102017108015A1 (de) 2016-04-15 2017-10-19 Wera-Werk Hermann Werner Gmbh & Co. Kg Futter mit einstellbarem Tiefenanschlag

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126673A (en) * 1937-06-10 1938-08-09 Buckeye Portable Tool Company Portable power operated tool
DE3510605A1 (de) * 1985-03-23 1986-10-02 C. & E. Fein Gmbh & Co, 7000 Stuttgart Kupplung fuer kraftgetriebene schraubwerkzeuge
US4809572A (en) * 1986-12-09 1989-03-07 Makita Electric Works, Ltd. Power driven screwdriver
DE3918227C1 (fr) * 1989-06-03 1990-11-15 C. & E. Fein Gmbh & Co, 7000 Stuttgart, De
JPH0641811Y2 (ja) * 1989-12-01 1994-11-02 日立工機株式会社 スクリュドライバ
US5538089A (en) * 1995-06-05 1996-07-23 The Black & Decker Corporation Power tool clutch assembly

Also Published As

Publication number Publication date
US6109149A (en) 2000-08-29
PL187800B1 (pl) 2004-10-29
JP2000094353A (ja) 2000-04-04
AU747945B2 (en) 2002-05-30
NO994646L (no) 2000-03-27
PL335557A1 (en) 2000-03-27
DE59900711D1 (de) 2002-02-28
ES2171069T3 (es) 2002-08-16
NO994646D0 (no) 1999-09-24
AU4346099A (en) 2000-03-30
DK0988936T3 (da) 2002-04-15
DE19844064A1 (de) 2000-03-30
NO311012B1 (no) 2001-10-01
ATE211423T1 (de) 2002-01-15
CA2282213A1 (fr) 2000-03-25
EP0988936A2 (fr) 2000-03-29
EP0988936A3 (fr) 2000-05-10

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