EP1162032A3 - Portable power tool, especially concrete grinder - Google Patents

Portable power tool, especially concrete grinder Download PDF

Info

Publication number
EP1162032A3
EP1162032A3 EP01111818A EP01111818A EP1162032A3 EP 1162032 A3 EP1162032 A3 EP 1162032A3 EP 01111818 A EP01111818 A EP 01111818A EP 01111818 A EP01111818 A EP 01111818A EP 1162032 A3 EP1162032 A3 EP 1162032A3
Authority
EP
European Patent Office
Prior art keywords
power tool
sealing element
portable power
sealing
protective hood
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
EP01111818A
Other languages
German (de)
French (fr)
Other versions
EP1162032B1 (en
EP1162032A2 (en
Inventor
Manfred Schuele
Guenter Schaal
Albert Kleider
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 EP1162032A2 publication Critical patent/EP1162032A2/en
Publication of EP1162032A3 publication Critical patent/EP1162032A3/en
Application granted granted Critical
Publication of EP1162032B1 publication Critical patent/EP1162032B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
    • B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Eine Handwerkzeugmaschine, insbesondere ein Betonschleifer, weist ein motorisch antreibbares Werkzeug (34) zur Bearbeitung insbesondere der Oberfläche eines Werkstücks und eine das Werkzeug (34) umgebende Schutzhaube (40) auf, die am unteren Randbereich (39) ein nachgiebiges Dichtelement (42) trägt, mit dem die Schutzhaube (40) zur Abdichtung auf die Oberfläche des Werkstücks aufsetzbar ist. Das Dichtelement (42) in Form einer Dichtbürste (43) ist mittels mindestens eines flexiblen Elements (50) federnd an der Schutzhaube (40) gehalten. Dadurch ist das Dichtelement werkzeuglos leicht auswechselbar. Dessen Borsten (46) sind weniger beansprucht, wodurch die Lebensdauer des Dichtelements (42) erhöht ist (Fig. 1).

Figure 00000001
A handheld power tool, in particular a concrete grinder, has a motor-driven tool (34) for processing, in particular, the surface of a workpiece and a protective hood (40) surrounding the tool (34), which carries a flexible sealing element (42) on the lower edge region (39) , with which the protective hood (40) can be placed on the surface of the workpiece for sealing. The sealing element (42) in the form of a sealing brush (43) is held resiliently on the protective hood (40) by means of at least one flexible element (50). This means that the sealing element can be easily replaced without tools. Its bristles (46) are less stressed, which increases the life of the sealing element (42) (Fig. 1).
Figure 00000001
EP20010111818 2000-06-07 2001-05-16 Portable power tool, especially concrete grinder Expired - Lifetime EP1162032B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000128128 DE10028128A1 (en) 2000-06-07 2000-06-07 Hand tool, in particular concrete grinder
DE10028128 2000-06-07

Publications (3)

Publication Number Publication Date
EP1162032A2 EP1162032A2 (en) 2001-12-12
EP1162032A3 true EP1162032A3 (en) 2003-10-22
EP1162032B1 EP1162032B1 (en) 2007-10-24

Family

ID=7644953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010111818 Expired - Lifetime EP1162032B1 (en) 2000-06-07 2001-05-16 Portable power tool, especially concrete grinder

Country Status (3)

Country Link
EP (1) EP1162032B1 (en)
JP (1) JP2002018693A (en)
DE (2) DE10028128A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717312A (en) * 2012-07-19 2012-10-10 倪玉萍 Novel dustless sander suitably used at any inside corner

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007013705U1 (en) * 2007-10-01 2009-02-19 Mafell Ag processing tool
JP5998331B2 (en) * 2012-07-31 2016-09-28 極東産機株式会社 Putty grinding tool for interior construction
RU2015125518A (en) 2012-11-29 2017-01-10 Ой Квх Мирка Аб METHOD AND DEVICE FOR GRINDING SPHERICAL PRODUCTS
FI125878B (en) 2013-06-13 2016-03-31 Dg Diving Group Ltd Apparatus and method for treating underwater surfaces
EP3300839A1 (en) * 2016-09-28 2018-04-04 Hilti Aktiengesellschaft Dust hood for a grinding machine
CN112388468B (en) * 2019-08-16 2022-12-13 博世电动工具（中国）有限公司 Hand-held power tool
EP3812089A1 (en) 2019-10-23 2021-04-28 Black & Decker Inc. Pole sander
GB2590684A (en) * 2019-12-23 2021-07-07 Black & Decker Inc Pole sander
US11867224B2 (en) 2021-01-27 2024-01-09 Black & Decker Inc. Locking mechanism for two telescoping poles of a power tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085064B (en) * 1959-03-23 1960-07-07 Gustav Albrecht Protective and suction hood for grinding and polishing machines
US4697389A (en) * 1986-05-13 1987-10-06 Romine Richard A Dust-confining vacuum sander
RU2011505C1 (en) * 1990-04-09 1994-04-30 Олег Николаевич Антонов Guard enclosure of end-machining tool
US6027399A (en) * 1998-02-27 2000-02-22 Stewart; Kerry Clean grinding system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085064B (en) * 1959-03-23 1960-07-07 Gustav Albrecht Protective and suction hood for grinding and polishing machines
US4697389A (en) * 1986-05-13 1987-10-06 Romine Richard A Dust-confining vacuum sander
RU2011505C1 (en) * 1990-04-09 1994-04-30 Олег Николаевич Антонов Guard enclosure of end-machining tool
US6027399A (en) * 1998-02-27 2000-02-22 Stewart; Kerry Clean grinding system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717312A (en) * 2012-07-19 2012-10-10 倪玉萍 Novel dustless sander suitably used at any inside corner
CN102717312B (en) * 2012-07-19 2015-08-26 倪玉萍 A kind of dustless sander being adapted at any inner corner trim place and using

Also Published As

Publication number Publication date
DE50113160D1 (en) 2007-12-06
EP1162032B1 (en) 2007-10-24
EP1162032A2 (en) 2001-12-12
JP2002018693A (en) 2002-01-22
DE10028128A1 (en) 2001-12-13

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