EP2148762A1 - Récipient collecteur de poussières - Google Patents

Récipient collecteur de poussières

Info

Publication number
EP2148762A1
EP2148762A1 EP08716917A EP08716917A EP2148762A1 EP 2148762 A1 EP2148762 A1 EP 2148762A1 EP 08716917 A EP08716917 A EP 08716917A EP 08716917 A EP08716917 A EP 08716917A EP 2148762 A1 EP2148762 A1 EP 2148762A1
Authority
EP
European Patent Office
Prior art keywords
seal
dust
dust collecting
inlet nozzle
hand
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
EP08716917A
Other languages
German (de)
English (en)
Other versions
EP2148762B1 (fr
Inventor
Heiko Roehm
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2148762A1 publication Critical patent/EP2148762A1/fr
Application granted granted Critical
Publication of EP2148762B1 publication Critical patent/EP2148762B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided

Definitions

  • the invention is based on a dust collecting container for a handheld power tool having a dust discharge nozzle, in particular for an electric hand grinder, according to the preamble of claim 1.
  • a known dust collection container for an electric hand-held power tool (DE 102 49 140 A1) has a dust collecting chamber and an inlet pipe which runs along the bottom of the dust collecting chamber and opens into the dust collecting chamber.
  • the open top dust collection chamber is closed with a removable air outlet openings, removable cover, the underside of which is covered with a dust filter.
  • the dust collector is pushed with its inlet nozzle on the Staubausblasstutzen the electric power tool and locked the dust collection container in the Aufschiebeend ein by means of self-locking snap hook on the machine housing.
  • the dust-tight connection of the dust collection container to the electric hand-held power tool creates a seal between the Staubausblasstutzen and the inlet nozzle.
  • the seal consists of two O-rings, one of which rests in one of two axially spaced-apart in the Staubausblasstutzen incorporated circumferential grooves and presses against the inner wall of the inlet nozzle.
  • the dust collector according to the invention with the features of claim 1 has the advantage that the sealing surface of the dust seal, which applies to the Staubausblasstutzen the power tool and acts with sealing force on this, transverse to the axis of the Inlet neck and thus aligned transversely to the sliding direction of the dust collection container.
  • the seal when pushing or pulling the inlet nozzle on or from the Staubausblasstutzen produce no frictional force, so that a jerk-free application and removal of the dust collection container is guaranteed to or from the power tool.
  • the inlet nozzle can thus always be pushed or pulled straight on the Staubausblasstutzen and must not be alternately on the Staubausblasstutzen back and forth to overcome a friction force when pushing or pulling off.
  • the dust collection container for pushing and unplugging requires no play, so that no compromises have to be made to the compact design of dust collector and hand tool.
  • a compression spring is supported on the rear side of the seal facing away from the sealing surface, which in turn is supported on a radial shoulder formed in the inlet connection.
  • the compression spring which is increasingly stretched when sliding the inlet nozzle on the Staubausblasstutzen, generates a high axial sealing force, which presses the seal axially on the annular free end of the Staubausblasstutzens, which at the same time the peripheral surface of the seal to the inner wall of the
  • the compressive force of the compressed compression spring supports the removal of the inlet nozzle from the exhaust nozzle, so that no jerky tearing of the dust collection container can arise from the power tool.
  • Fig. 1 is a side view of an attached to a hand tool
  • Dust collecting container wherein of the power tool only the machine housing is shown in fragmentary form, 2 shows a longitudinal section of the dust collecting container attached to the handheld power tool in FIG. 1.
  • dust collecting container for a hand tool with a cutting tool, e.g. for an electric hand grinder, such as orbital sander, orbital sander or belt sander, but also for a hand saw or electric planer, is designed for attachment to and removal from the machine housing 11 of the power tool in the range of formed on the machine housing 11 Staubausblastutzens 12 of the power tool.
  • the dust collecting container comprises a trough-like housing 13 open at the top and a cover 14 which can be placed on the opening of the housing 13 and closes off the housing 13 in a dustproof manner and encloses a dust collecting chamber 15 together with the housing 13. In the cover 14, not visible in Fig.
  • the lid 14 has a circumferential elastic edge 141 on the end face of a groove is incorporated. With this end groove, the edge 141 of the lid 14 is pressed onto the housing opening enclosing the end edge of the housing 13.
  • the dust collecting chamber 15 facing bottom of the lid 14 is covered with a dust filter 16, which is designed in the embodiment as a folded filter.
  • a dust filter 16 which is designed in the embodiment as a folded filter.
  • Hand tool machine is provided in the inlet nozzle 17 an annular seal 18 which rests with its peripheral surface 182 on the inner wall 172 of the inlet nozzle 17 and is pressed by a compression spring 19 with its transversely to the axis of the inlet port 17 aligned sealing surface 181 on the annular free end of the Staubausblastutzens 12 ,
  • a compression spring 19 With its transversely to the axis of the inlet port 17 aligned sealing surface 181 on the annular free end of the Staubausblastutzens 12 ,
  • the compression spring 19 which in turn is supported on a circumferential radial shoulder 171 in the inlet nozzle 17
  • the seal 18 is pressed with its peripheral surface 182 even more against the inner wall 172 of the inlet nozzle 17.
  • Each latching 20 consists of a latching hook 21 arranged on the housing 13 of the dust collecting container and of a latching nose 22 arranged on the machine housing 11 with an undercut 221.
  • the dust collecting container is pushed with its inlet nozzle 17 on the Staubausblasstutzen 12. After a short Aufschiebeweg the seal sets 18 with its sealing surface 181 on the front end of the Staubausblastutzens 12 and is pressed at a further displacement of the compressing compression spring 19 on the front end 121. With increasing pressure force of the compression spring 19, the peripheral surface 182 of the seal 18 presses more strongly against the inner wall 172 of the inlet nozzle 17. At the end of the sliding movement of the latching hook 21 passes over the latching lug 22 and engages in the undercut 221 a.
  • the latching hook 21 can be moved out of the undercut 221. Now, the relaxing compression spring 19 pushes the dust collector a piece on the Staubausblasstutzen 12 and the dust collector can be easily removed.
  • the latching hooks 21 can also be designed as resilient latching pawls which are under
  • a simplified embodiment can be dispensed with the compression spring 19 and the annular seal 18 with its facing away from the sealing surface 181 back to a formed in the inlet nozzle 17 abutment, for example, a radial web, applied.
  • the seal 18 is formed by the latching lugs 22 engaging behind the latch hook 21 on the front end 121 of the Staubausblastutzens 12th pressed.
  • the seal is axially elastically compressible by suitable choice of material, eg polyurethane foam, or by a corresponding geometric shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Portable Power Tools In General (AREA)

Abstract

L'invention concerne un récipient collecteur de poussières destiné à une machine-outil à main comportant une tubulure d'expulsion de poussières (12), notamment à une ponceuse à main électrique. Ledit récipient comporte une tubulure d'entrée (17) conçue pour être enfichée sur la tubulure d'expulsion de poussières (12), et un joint (18) agissant entre la tubulure d'entrée (17) et la tubulure d'expulsion de poussières (12), faisant joint avec sa surface périphérique (182) contre la paroi intérieure (172) de la tubulure d'entrée (17). Pour une manipulation simple et sans à-coups du récipient collecteur de poussières lors du montage sur la machine-outil à main, et lors du retrait à partir de la machine-outil à main, le joint (18) présente une surface de joint (181) orientée perpendiculairement à l'axe de tubulure, servant à faire joint contre l'extrémité frontale annulaire libre (121) de la tubulure d'expulsion de poussières (12).
EP08716917.3A 2007-04-18 2008-02-19 Récipient collecteur de poussières Not-in-force EP2148762B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007018234A DE102007018234A1 (de) 2007-04-18 2007-04-18 Staubauffangbehälter
PCT/EP2008/051957 WO2008128798A1 (fr) 2007-04-18 2008-02-19 Récipient collecteur de poussières

Publications (2)

Publication Number Publication Date
EP2148762A1 true EP2148762A1 (fr) 2010-02-03
EP2148762B1 EP2148762B1 (fr) 2013-04-10

Family

ID=39324809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08716917.3A Not-in-force EP2148762B1 (fr) 2007-04-18 2008-02-19 Récipient collecteur de poussières

Country Status (5)

Country Link
US (1) US7976364B2 (fr)
EP (1) EP2148762B1 (fr)
CN (1) CN101657298B (fr)
DE (1) DE102007018234A1 (fr)
WO (1) WO2008128798A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967923B2 (en) 2012-01-13 2015-03-03 Aeg Electric Tools Gmbh Dust suction device for drilling machine
US9776296B2 (en) 2008-05-09 2017-10-03 Milwaukee Electric Tool Corporation Power tool dust collector
US9393658B2 (en) 2012-06-14 2016-07-19 Black & Decker Inc. Portable power tool
USD741557S1 (en) 2014-01-15 2015-10-20 Milwaukee Electric Tool Corporation Dust collector
USD742081S1 (en) 2014-01-15 2015-10-27 Milwaukee Electric Tool Corporation Dust collector

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4839995A (en) * 1988-05-02 1989-06-20 Hutchins Manufacturing Company Abrading tool
US5440809A (en) * 1993-10-06 1995-08-15 Padilla; Daniel G. Dust collector for hand-held power tool
DE19924547A1 (de) 1999-05-28 2000-11-30 Bosch Gmbh Robert Handwerkzeugmaschine mit Staubabsaugung
DE10116501A1 (de) 2001-04-03 2002-10-17 Bosch Gmbh Robert Stutzen zum Anschluß eines Absaugschlauchs an eine Handwerkzeugmaschine
DE10249140A1 (de) 2002-10-22 2004-05-06 Robert Bosch Gmbh Staubauffangbehälter für eine Elektrohandwerkzeugmaschine
ITMI20030961A1 (it) 2003-05-14 2004-11-15 Guido Valentini Utensile motorizzato con capacita' di aspirazione e raccolta polvere.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008128798A1 *

Also Published As

Publication number Publication date
US20090270018A1 (en) 2009-10-29
US7976364B2 (en) 2011-07-12
DE102007018234A1 (de) 2008-10-23
WO2008128798A1 (fr) 2008-10-30
CN101657298B (zh) 2013-05-29
EP2148762B1 (fr) 2013-04-10
CN101657298A (zh) 2010-02-24

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