EP0645218A2 - Tige d'outil - Google Patents

Tige d'outil Download PDF

Info

Publication number
EP0645218A2
EP0645218A2 EP94114758A EP94114758A EP0645218A2 EP 0645218 A2 EP0645218 A2 EP 0645218A2 EP 94114758 A EP94114758 A EP 94114758A EP 94114758 A EP94114758 A EP 94114758A EP 0645218 A2 EP0645218 A2 EP 0645218A2
Authority
EP
European Patent Office
Prior art keywords
grooves
tool shank
chamfered
flanks
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.)
Withdrawn
Application number
EP94114758A
Other languages
German (de)
English (en)
Other versions
EP0645218A3 (fr
Inventor
Erich Runge
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.)
Plica Werkzeugfabrik AG
Original Assignee
Plica Werkzeugfabrik 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 Plica Werkzeugfabrik AG filed Critical Plica Werkzeugfabrik AG
Publication of EP0645218A2 publication Critical patent/EP0645218A2/fr
Publication of EP0645218A3 publication Critical patent/EP0645218A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0034—Details of shank profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0038—Locking members of special shape

Definitions

  • the invention relates to a tool shank for rotating tools with at least two diametrically opposed, axially extending grooves for receiving rotary drivers and / or locking bodies of a mechanical torque transmission device.
  • Such a tool shank is e.g. known from DE-PS 25 51 125.
  • the known tool shank has two fundamentally different types of grooves, namely those which open out at the end of the shank and are intended for receiving strip-shaped or wedge-shaped rotary drivers, and those which are closed on both sides in the axial direction and for receiving radially movable locking bodies in the form of Balls or cylinders are determined.
  • This known tool shank has the disadvantage that it only can be used with a very specific machine system that is adapted to it, but cannot be used universally in various common machine types.
  • the object of the invention is to remedy this disadvantage.
  • flanks of a pair of grooves according to the invention are chamfered in a hollow cylinder only within a section which is axially delimited in both directions and ends at a certain distance from the shaft end, with not only one but basically two mutually opposite grooves having this chamfer, sufficiently large stop surfaces created for the locking body, which prevent the tool shank from unintentionally coming loose and can be pulled out of the tool holder of the machine.
  • the grooves of the chamfered groove pair preferably have a greater radial depth than the grooves of the non-chamfered groove pair.
  • the grooves of the chamfered pair of grooves can be wider over their entire cross-section than the grooves of the pair of chamfers not chamfered.
  • flanks of the grooves preferably run radially or almost radially, but they can also run tangentially, so that the flanks are arranged at right angles to the groove base.
  • the tool shank 1 (FIGS. 1 and 2) has four grooves 2, 3 which open out at the shank end 5 and are diametrically opposed to one another in pairs.
  • the grooves 3 of one pair of grooves have a greater radial depth than the grooves 2 of the other pair of grooves.
  • the grooves 3 are wider than the grooves 2 over their entire cross section.
  • flanks 6 of the wider and deeper grooves 3 have a hollow cylindrical chamfer 4 within a section A which is axially delimited in both directions, section A always ending at a distance x from the shaft end 5.
  • the chamfered grooves 3 are designed as "combination minutes", since they serve both to accommodate strip-shaped rotary drivers and to accommodate preferably cylindrical locking bodies.
  • the flanks 6, 7 of the grooves 2, 3 run radially or almost radially.
  • FIG. 3 shows the use of the tool shank according to FIG. 1 in connection with the tool holder of a common machine system:
  • the tool holder of a rotary hammer surrounded by the machine housing 10 is connected in a known manner (not shown) to the spindle of the electrically drivable machine, thereby on the one hand causing a Torque and on the other hand axial shocks can be transferred to the tool holder.
  • the shank 1 of a tool for example a drill, chisel or adapter, which in turn has a tool receptacle that is identical or foreign to the system, e.g. can be provided with round thread, inserted.
  • the locking bodies 12 engage in the chamfered grooves 3 located opposite one another on a first diagonal.
  • the locking body 12 can be moved radially out of the grooves 3 by axially displacing the sleeve 11, so that the tool with the shaft 1 can be pulled out.
  • the tool holder shown in Fig. 4 differs from that of Fig. 3 in that it has only one locking body 12 and only one, the locking body 12 diametrically opposite rotary driver 13, the latter engaging in the chamfered groove 3 which opens out at the shaft end 5.
  • the one in the tool holder plugging shaft 1 does not differ from that according to FIG. 3; that is, the grooves 2 do not cooperate with any rotary drivers, because the tool holder has only one rotary driver 13 already mentioned.
  • the tool shaft does not have four but only two diametrically opposite grooves 3, while the tool holder of the machine does not differ from that according to FIG. 4.
  • One of the chamfered grooves 3 receives the locking body 12 and thus serves as a locking groove, while the opposite groove 3 receives the rotary driver 13 and serves as a rotary driving groove.
  • the tool shank according to the invention can thus be used in various mounting systems without losing functionality and operational reliability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Gripping On Spindles (AREA)
EP94114758A 1993-09-23 1994-09-20 Tige d'outil. Withdrawn EP0645218A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9314416U DE9314416U1 (de) 1993-09-23 1993-09-23 Werkzeugschaft
DE9314416U 1993-09-23

Publications (2)

Publication Number Publication Date
EP0645218A2 true EP0645218A2 (fr) 1995-03-29
EP0645218A3 EP0645218A3 (fr) 1995-09-06

Family

ID=6898478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114758A Withdrawn EP0645218A3 (fr) 1993-09-23 1994-09-20 Tige d'outil.

Country Status (2)

Country Link
EP (1) EP0645218A3 (fr)
DE (1) DE9314416U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4341971A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4341970A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
EP0739267B1 (fr) * 1994-01-14 2001-03-14 Robert Bosch Gmbh Dispositif d'entrainement en rotation d'outils pour machines-outils manuelles
DE4402802C2 (de) * 1994-01-31 2003-01-30 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE19734140A1 (de) * 1997-08-07 1999-02-11 Hawera Probst Gmbh Bohrwerkzeug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2551125C2 (de) * 1975-11-14 1987-04-23 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung an Handwerkzeugmaschinen zur Drehmomentübertragung
DE3429419A1 (de) * 1984-08-09 1986-02-20 Hilti Ag, Schaan Bohrwerkzeug fuer handbohrmaschinen
FR2635039B1 (fr) * 1988-08-05 1990-11-02 Prospection & Inventions Foret comprenant une queue avec des rainures
DE9013190U1 (de) * 1990-09-17 1992-01-23 Drebo Werkzeugfabrik GmbH, 7963 Altshausen Bohrer
DE4242452A1 (de) * 1992-07-15 1994-01-20 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte

Also Published As

Publication number Publication date
DE9314416U1 (de) 1993-12-09
EP0645218A3 (fr) 1995-09-06

Similar Documents

Publication Publication Date Title
DE3716915C2 (fr)
EP2384861B1 (fr) Porte-outil pour un marteau perforateur
EP0432169B1 (fr) Dispositif de transmission de couple sur les machines-outils
EP0500489B1 (fr) Outil et porte-outil pour machine à main
DE2500216B2 (de) Werkzeug zum Ausschneiden von Scheiben aus Blech o.dgl
EP0433876B1 (fr) Outil pour le forage à percussion et porte-outil pour outil de forage à percussion
DE29504857U1 (de) Bohrlehre für chirurgische Bohrwerkzeuge
WO1992006823A1 (fr) Dispositif pour machines-outils manuelles
EP0605602A1 (fr) Dispositif monte sur des outils a main mecaniques.
EP0147830A2 (fr) Foret pour perceuses tenues à la main
EP0551795B1 (fr) Outil pour forage à percussion et ciselage et mandrin pour cet outil
EP0739267A1 (fr) Dispositif d'entrainement en rotation d'outils pour machines-outils manuelles
DE10058587A1 (de) Vorrichtung zur Drehmomentübertragung
EP0563727B1 (fr) Dispositif pour transmettre un moment de rotation
DE102023109922A1 (de) Bohrvorrichtung, insbesondere Saugbohrvorrichtung, zum Bohren eines Bohrloches
EP0645218A2 (fr) Tige d'outil
DE2346323A1 (de) Handstueck, insbesondere fuer zahnaerztliche zwecke
DE3150966C2 (fr)
DE19725401C1 (de) Bohrvorrichtung mit Begrenzung des Bohrweges
DE10206164B4 (de) Einspannschaft
EP0665088A1 (fr) Outil et mandrin pour outil à main
DE4042399C1 (en) Coupling sleeve between drill and drive shaft - has aperture retaining clamping stem head larger than sleeve bore
EP0657253A2 (fr) Outil et mandrin pour des outil à main
EP0581727A1 (fr) Outil et mandrin pour outil portatif
DE20001865U1 (de) Spannfutter für Werkzeugeinsätze, insbesondere Schraubendreherbits

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE DK FR LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE DK FR LI NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960307