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EP1346800B1 - Outil pour une machine-outil portative - Google Patents

Outil pour une machine-outil portative Download PDF

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Publication number
EP1346800B1
EP1346800B1 EP03005708A EP03005708A EP1346800B1 EP 1346800 B1 EP1346800 B1 EP 1346800B1 EP 03005708 A EP03005708 A EP 03005708A EP 03005708 A EP03005708 A EP 03005708A EP 1346800 B1 EP1346800 B1 EP 1346800B1
Authority
EP
European Patent Office
Prior art keywords
tool
rotary
tool shank
shank
locking means
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
EP03005708A
Other languages
German (de)
English (en)
Other versions
EP1346800A1 (fr
Inventor
Heinrich Kersten
Frank Schubert
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP1346800A1 publication Critical patent/EP1346800A1/fr
Application granted granted Critical
Publication of EP1346800B1 publication Critical patent/EP1346800B1/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
    • 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

Definitions

  • the invention relates to a tool for a hand tool with beating and / or drilling function with the features of the preamble of Claim 1.
  • a tool for a hand tool is known with a beating and / or drilling function (EP 0 739 267 B1), in which on the circumference of the tool shank axial locking and three rotary driving substantially uniform are arranged distributed.
  • the axial locking opposite rotational drive has a Expansion in such a way that in this rotational drive and a locking roller can intervene. This rotational drive is therefore also simultaneously as axial locking available.
  • the tool shank of this tool is also too compatible with such known tool holders, in which the Rotary drive and axial locking by two diametrically opposed, cylindrical locking rollers is accomplished.
  • the teaching is based on the problem, a tool for a hand tool with beating and / or drilling function, if possible Universal in tool holders of different design for hand tool machines different manufacturers can be used and yet one long service life of both the tool and, in particular, the tool holder the hand tool ensures.
  • the teaching of the invention solves the problem previously described in a tool with the features of the preamble of claim 1 by the features of the characterizing part of claim 1.
  • What is essential is the symmetrical Design of the three rotary driving and the adaptation of the external dimensions the three rotational loads on the axial lock.
  • the invention is recognized been that one for the axial locking of the tool in the tool holder only one Axialvemegelung needed.
  • One possibly at the tool holder opposite arranged locking roller can certainly remain functionless. It only has to be in a rotary drive located here can arrange on the tool shank so that no jamming occur.
  • Fig. 1 shows a tool for a hand tool with beating and / or drilling function, in particular for a drill, a Impact drill, a hammer drill and another similar working Striker.
  • This tool has a circular cross-section tool shank 1 with a working end with cutting plate and conveyor spiral, in Fig. 1, not shown, and with a male end 2, shown in Fig. 1, for insertion in a tool holder on the power tool.
  • the insertion end 2 of the tool shank 1 first makes the axial locking of the tool in the tool holder, so that the tool from the tool holder of Hand tool in locked position can not fall out, moreover and in particular then the transmission of the torque from the hand tool on the tool while machining a workpiece.
  • the insertion end 2 of the tool shank 1 is initially a Axialverriegelung 3. As shown in FIG. 2, the insertion end 2 is also a Group of three rotary actions 4, 5, 6. The axial lock 3 and the rotary drive 4, 5, 6 are on the circumference of the tool shank 1 substantially arranged evenly distributed.
  • the Axialverriegelung 3 is as axially extending, to the end of the tool shaft 1 out closed, circular arc-shaped trough executed.
  • the rotary drive 4, 5, 6 are axially extending, towards the end of the tool shank 1 open, approximately trapezoidal grooves in the tool shank 1 executed.
  • the three rotational actions 4, 5, 6 are symmetrical to each each radial center line executed.
  • the three rotary driving 4, 5, 6 on the circumference of the tool shank 1 substantially the same width as the axial lock 3 on.
  • the three rotary driving 4, 5, 6 point in the respective center radially at least the same depth as the axial lock. 3 on.
  • the illustrated and preferred embodiment shows in so far a again preferred embodiment, for which applies that the depth slightly larger is the depth of the axial lock 3rd
  • Fig. 2 it can be seen that here and after preferred Execution of the arc of the Axialverriegelung 3 forming trough a Radius of about 2/3 to 3/4 of the radius of the tool shank 1 has. To Corresponds here that the depth of the axial lock 3 about 40% to 50% the radius of the tool shank 1 is. This is the appropriate immersion depth a locking roller in the tool shank 1 described.
  • FIG. 2 in so far as a preferred design is provided as that the adjacent flanks 7 of adjacent rotational drives 4, 5; 5, 6 parallel to each other run. This gives an optimization of between the Rotary actions 4, 5, 6 and the axial locking 3 standing rotational driving strips.
  • the two edges 7 of the trapezoidal rotational drive 4; 5; 6; lie on radii of a circular sector whose center 8 between the bottom 9 of the rotary drive 4; 5; 6 and the center 10 of Tool shaft 1 is located.
  • the of the respective rotational drive 4; 5; 6 formed circular sector can be one have different width.
  • the illustrated embodiment shows that here preferably an angle of about 90 ° (center angle to the center 8) is included
  • the center 8 of the circular sector is about 1/4 of the Radius of the tool shank 1, calculated from the center 10 of the tool shank 1 radially outward.
  • the illustrated and preferred embodiment finally shows a Construction characterized in that in a circumferential direction seen front edge 7 of a rotary driving groove 4; 5 with the rear edge. 7 the following rotary driving groove 5; 6 is aligned.
  • the two flanks 7; 7 of the two Rotary driving grooves 4; 5 and 5, respectively; 6 lie in a plane parallel to a the longitudinal axis of the tool shank 1 enclosing plane lies.
  • the illustrated and preferred embodiment of a tool is in particular can be used appropriately for small diameters of the tool shank, preferably diameter of the tool shank of about 10 mm. In the illustrated Embodiment would then be the depth of the rotary driving groove 4; 5; 6 at about 2.4 mm to 2.5 mm.
  • one Embodiment of the tool according to the invention characterized is that the metal material of the tool at least in the region of the insertion end, in particular in the region of the flanks 7 of the rotary driving 4, 5, 6, tough composed and / or adjusted. At the very worst, it bends one Bar, the tool becomes unusable. But the material of the bar breaks not gone, because it is tough and not brittle compounded or set. The tool holder on the hand tool remains undamaged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)
  • Jigs For Machine Tools (AREA)

Claims (10)

  1. Outil pour une machine-outil portative avec une fonction de frappe et/ou de perçage,
    comprenant un manche d'outil (1) de section transversale circulaire avec une extrémité de travail et une extrémité d'enfichage (2) pour l'enfichage dans un raccordement d'outil sur la machine-outil portative,
    dans lequel, à l'extrémité d'enfichage (2) sont disposés un verrouillage axial (3) et trois entraínements en rotation (4, 5, 6) répartis essentiellement uniformément sur la périphérie, le verrouillage axial (3) étant réalisé sous forme de creux dans le manche d'outil (1) s'étendant axialement, fermé vers l'extrémité du manche d'outil, et les entraínements en rotation (4, 5, 6) étant réalisés sous forme de rainures de forme approximativement trapézoïdale dans le manche d'outil (1), s'étendant axialement, ouvertes vers l'extrémité du manche d'outil (1) et
    dans lequel les trois entraínements en rotation (4, 5, 6) sont réalisés à chaque fois symétriquement par rapport à l'axe médian radial respectif,
    caractérisé en ce que
    les trois entraínements en rotation (4, 5, 6) présentent sur la périphérie du manche d'outil (1) essentiellement la même largeur que le verrouillage axial (3) et en ce que les trois entraínements en rotation (4, 5, 6) présentent, en leurs centres respectifs, radialement au moins la même profondeur que le verrouillage axial (3).
  2. Outil selon la revendication 1, caractérisé en ce que les trois entraínements en rotation (4, 5, 6) présentent, en leurs centres respectifs, radialement une profondeur légèrement plus grande que le verrouillage axial (3).
  3. Outil selon la revendication 1 ou 2, caractérisé en ce que l'arc de cercle du creux formant le verrouillage axial (3) présente un rayon d'environ 2/3 à 3/4 du rayon du manche d'outil (1) et/ou en ce que la profondeur du verrouillage axial (3) représente environ 40% à 50% du rayon du manche d'outil (1).
  4. Outil selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les flancs adjacents (7) d'entraínements en rotation adjacents (4, 5 ; 5, 6) s'étendent parallèlement les uns aux autres.
  5. Outil selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les deux flancs (7) d'un entraínement en rotation (4 ; 5 ; 6) de forme trapézoïdale se situent sur des rayons d'un secteur de cercle dont le centre (8) se trouve entre le fond (9) de l'entraínement en rotation (4 ; 5 ; 6) et le centre (10) du manche d'outil (1).
  6. Outil selon la revendication 5, caractérisé en ce que le secteur de cercle formé par l'entraínement en rotation respectif (4 ; 5 ; 6) inclut un angle d'environ 90°.
  7. Outil selon la revendication 5 ou 6, caractérisé en ce que le centre (8) du secteur de cercle se trouve à environ 1/4 du rayon du manche d'outil (1).
  8. Outil selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le flanc avant (7) d'un entraínement en rotation (4 ; 5), vu dans la direction périphérique, est en affleurement avec le flanc arrière (7) de l'entraínement en rotation suivant (5 ; 6).
  9. Outil selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le manche d'outil (1) présente un diamètre d'environ 10 mm.
  10. Outil selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le matériau en métal de l'outil est constitué et/ou est ajusté de manière à être dur au moins dans la région de l'extrémité d'enfichage, notamment dans la région des flancs (7) des entraínements en rotation (4, 5, 6).
EP03005708A 2002-03-19 2003-03-13 Outil pour une machine-outil portative Expired - Lifetime EP1346800B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20204416U DE20204416U1 (de) 2002-03-19 2002-03-19 Werkzeug für eine Handwerkzeugmaschine
DE20204416U 2002-03-19

Publications (2)

Publication Number Publication Date
EP1346800A1 EP1346800A1 (fr) 2003-09-24
EP1346800B1 true EP1346800B1 (fr) 2005-07-13

Family

ID=7969166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03005708A Expired - Lifetime EP1346800B1 (fr) 2002-03-19 2003-03-13 Outil pour une machine-outil portative

Country Status (5)

Country Link
EP (1) EP1346800B1 (fr)
AT (1) ATE299419T1 (fr)
AU (1) AU2003201352B2 (fr)
DE (2) DE20204416U1 (fr)
ES (1) ES2244847T3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650134A1 (de) * 1976-10-30 1978-05-11 Bosch Gmbh Robert Werkzeugeinsteckschaft
DE4200643A1 (de) * 1992-01-13 1993-07-15 Hilti Ag Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge
DK30592D0 (da) * 1992-03-06 1992-03-06 Joran Bor A S Boropsaetning
DE4341970A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4400969A1 (de) * 1994-01-14 1995-07-20 Bosch Gmbh Robert Einrichtung an Handwerkzeugmaschinen zur Drehmitnahme von Werkzeugen
ES2155885T3 (es) * 1994-01-14 2001-06-01 Bosch Gmbh Robert Dispositivo para el arrastre rotativo de herramientas en maquinas herramienta manuales.
DE4403303A1 (de) * 1994-02-03 1995-08-10 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte

Also Published As

Publication number Publication date
ATE299419T1 (de) 2005-07-15
EP1346800A1 (fr) 2003-09-24
DE50300744D1 (de) 2005-08-18
ES2244847T3 (es) 2005-12-16
DE20204416U1 (de) 2002-07-11
AU2003201352B2 (en) 2007-01-25
AU2003201352A1 (en) 2003-10-16

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