EP2006058B1 - Dispositif de serrage destiné au serrage fixe sans outil - Google Patents

Dispositif de serrage destiné au serrage fixe sans outil Download PDF

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Publication number
EP2006058B1
EP2006058B1 EP08008708A EP08008708A EP2006058B1 EP 2006058 B1 EP2006058 B1 EP 2006058B1 EP 08008708 A EP08008708 A EP 08008708A EP 08008708 A EP08008708 A EP 08008708A EP 2006058 B1 EP2006058 B1 EP 2006058B1
Authority
EP
European Patent Office
Prior art keywords
flange
thread
clamping device
threaded neck
neck
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.)
Active
Application number
EP08008708A
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German (de)
English (en)
Other versions
EP2006058A1 (fr
Inventor
Reiner Schulz
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.)
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and Co
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 Metabowerke GmbH and Co filed Critical Metabowerke GmbH and Co
Publication of EP2006058A1 publication Critical patent/EP2006058A1/fr
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29—Details; Component parts; Accessories
    • B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
    • B27B5/32—Devices for securing circular saw blades to the saw spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools

Definitions

  • Machine tools of the type in question are in particular table saws, circular saws, angle grinders etc .
  • Tools of the type in question are in particular saw blades, grinding wheels, rubber plates or the like.
  • the known tensioning device from which the invention proceeds ( DE-A-38 26 017 ), has a threaded connector on which axially displaceable, but non-rotatably an inner flange sits.
  • To the inner flange corresponds to a screwed onto the threaded neck by means of an additional thread with a small pitch counterflange in the form of a fastening nut.
  • an additional thread with a small pitch counterflange in the form of a fastening nut.
  • the additional thread must be self-locking. This is in general from the process of tightening and relaxation ago her improvement. In particular, this is not readily suitable for a pure manual operation.
  • the return spring 13 forms here at the same time a frictional rotational drive connection of the handwheel 8 with the threaded connector 5, so that the handwheel 8 can be rotated with the threaded connector 5 as a unit, as long as the opposing forces do not exceed a certain level.
  • the rotary driving connection by the return spring 13 may also be a surmountable positive rotational drive connection, for example by a wave-shaped embodiment of the return spring 13 or an additional wave-shaped disc.

Claims (9)

  1. Dispositif de serrage pour le serrage fixe axial sans outil d'un outil en forme de disque (1), notamment d'une lame de scie, sur une bride (2) d'un arbre d'entraînement (3) d'une machine-outil, notamment d'une scie circulaire, l'extrémité côté bride de l'arbre d'entraînement (3) présentant un filetage (4) avec un pas déterminé,
    avec un raccord fileté central (5) avec un filetage de base (6) s'adaptant au filetage (4) de l'arbre d'entraînement (3), qui peut être vissé avec le filetage (4) de l'arbre d'entraînement (3), et avec une bride côté raccord (7),
    avec une bride conjuguée (8) montée coaxialement sur le raccord fileté (5) à son extrémité opposée à la bride côté raccord (7), pouvant tourner par rapport au raccord fileté (5) et déplaçable axialement,
    le raccord fileté (5) présentant, à son extrémité opposée à la bride côté raccord (7) un filetage supplémentaire (10) avec un pas sensiblement plus petit que le filetage de base (6),
    la bride conjuguée (8) présentant un filetage conjugué supplémentaire (11) s'adaptant au filetage supplémentaire (10), qui est vissé avec le filetage supplémentaire (10),
    caractérisé en ce que
    la bride conjuguée (8) est réalisée sous forme de roue à main (8) avec un diamètre sensiblement plus grand que le raccord fileté (5),
    entre la roue à main (8) et une bride de support (12) sur le raccord fileté (5) est disposé un ressort de rappel (13) agissant axialement, pressant la roue à main (8) axialement à l'écart du raccord fileté (5), qui crée en même temps une connexion d'entraînement en rotation par engagement par friction ou par engagement par coopération de forme surmontable de la roue à main (8) avec le raccord fileté (5), et
    en ce que sur la roue à main (8), au niveau de son côté tourné vers la bride côté raccord (7) du raccord fileté (5), est disposée une bride de pression (14) entourant à l'extérieur la bride côté raccord (7) du raccord fileté (5), qui peut être déplacée axialement par rotation de la roue à main (8) par rapport au raccord fileté (5), de telle sorte que pour le serrage fixe axial de l'outil (1) sur la bride (2), l'arbre d'entraînement (3) de la bride de pression (14) soit pressé axialement contre l'outil (1) ou un disque de pression (1') associé à l'outil (1).
  2. Dispositif de serrage selon la revendication 1, caractérisé en ce que le filetage de base (6) est réalisé sur le raccord fileté (5) sous forme de filetage extérieur et s'étend de préférence jusqu'à la bride côté raccord (7).
  3. Dispositif de serrage selon la revendication 1 ou 2, caractérisé en ce que le filetage supplémentaire (10) sur le raccord fileté (5) est réalisé sous forme de filetage extérieur et le filetage conjugué supplémentaire (11) sur la roue à main (8) est réalisé sous forme de filetage intérieur.
  4. Dispositif de serrage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que
    la bride côté raccord (7) du raccord fileté (5) ne peut pas venir en appui axialement sur l'outil (1) ou le disque de pression (1'), mais seulement sur le côté frontal de l'arbre d'entraînement (3).
  5. Dispositif de serrage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la roue à main (8) est protégée sur le raccord fileté (5) contre un dévissage du raccord fileté (5).
  6. Dispositif de serrage selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le ressort de rappel (13) est réalisé sous forme de ressort Belleville ou, de préférence, sous forme de ressort de compression à boudin.
  7. Dispositif de serrage selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le ressort de rappel (13) est disposé dans une chambre (17) formée entre la roue à main (8) et la bride de support (12) sur le raccord fileté (5).
  8. Dispositif de serrage selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'on dispose entre la bride de pression (14) et la roue à main (8) un élément intermédiaire (20) réduisant la friction, notamment un agencement de roulement à billes ou de roulement à rouleaux.
  9. Dispositif de serrage selon la revendication 8, caractérisé en ce que la bride de pression (14) est montée avec l'élément intermédiaire (20) réduisant la friction sur le dispositif de serrage, dans l'ensemble de manière imperdable.
EP08008708A 2007-06-20 2008-05-09 Dispositif de serrage destiné au serrage fixe sans outil Active EP2006058B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007028892A DE102007028892B3 (de) 2007-06-20 2007-06-20 Spanneinrichtung zum werkzeuglosen Festspannen

Publications (2)

Publication Number Publication Date
EP2006058A1 EP2006058A1 (fr) 2008-12-24
EP2006058B1 true EP2006058B1 (fr) 2010-04-28

Family

ID=39672979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08008708A Active EP2006058B1 (fr) 2007-06-20 2008-05-09 Dispositif de serrage destiné au serrage fixe sans outil

Country Status (3)

Country Link
EP (1) EP2006058B1 (fr)
AT (1) ATE465855T1 (fr)
DE (2) DE102007028892B3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009000482U1 (de) 2009-01-13 2010-05-27 Metabowerke Gmbh Spanneinrichtung zum werkzeuglosen Festspannen
AT507775B1 (de) * 2009-01-21 2010-08-15 Felder Kg Reibschlüssige rotationswerkzeugbefestigungsvorrichtung
US10549449B2 (en) * 2013-11-25 2020-02-04 Robert Bosch Gmbh Tool free bolt system for a saw blade
JP6400460B2 (ja) * 2014-01-30 2018-10-03 株式会社マキタ 切断機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH449931A (de) * 1966-12-06 1968-01-15 Perles Elektrowerkzeuge & Moto Spannvorrichtung für das Blatt einer Handkreissäge
DE3012836C2 (de) * 1980-04-02 1985-09-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zum Festspannen der Schleifscheibe von Winkelschleifern
DE3700968A1 (de) * 1987-01-15 1988-08-04 Bosch Gmbh Robert Spanneinrichtung zum axialen festspannen eines werkzeuges, insbesondere einer scheibe
DE3826017A1 (de) * 1987-09-16 1989-03-30 Metabowerke Kg Vorrichtung zum spannen von scheibenfoermigen werkzeugen an einer handwerkzeugmaschine
DE10258372B4 (de) * 2001-12-12 2004-12-30 S-B Power Tool Company, Broadview Spannaufbau
US7343841B2 (en) * 2002-02-15 2008-03-18 Black & Decker Inc. Blade clamp assembly

Also Published As

Publication number Publication date
EP2006058A1 (fr) 2008-12-24
ATE465855T1 (de) 2010-05-15
DE502008000591D1 (de) 2010-06-10
DE102007028892B3 (de) 2008-12-04

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