EP0143251A2 - Fixation de carter de protection pour meuleuse d'angle portative - Google Patents

Fixation de carter de protection pour meuleuse d'angle portative Download PDF

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Publication number
EP0143251A2
EP0143251A2 EP84111446A EP84111446A EP0143251A2 EP 0143251 A2 EP0143251 A2 EP 0143251A2 EP 84111446 A EP84111446 A EP 84111446A EP 84111446 A EP84111446 A EP 84111446A EP 0143251 A2 EP0143251 A2 EP 0143251A2
Authority
EP
European Patent Office
Prior art keywords
protective hood
securing element
spindle neck
face
attachment according
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Withdrawn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
EP84111446A
Other languages
German (de)
English (en)
Other versions
EP0143251A3 (fr
Inventor
E Fein Gmbh Co C
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.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein 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 C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Publication of EP0143251A2 publication Critical patent/EP0143251A2/fr
Publication of EP0143251A3 publication Critical patent/EP0143251A3/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the protective cover covers the area of the grinding wheel that is not needed to machine the workpiece.
  • Another arrangement also provides a circumferential groove on the spindle neck, in which a corresponding bead, which is formed on the inner surface of the clamp, engages.
  • a securing element be attached in the region of the end face of the spindle neck in such a way that it projects beyond the outer diameter of the spindle neck.
  • the flange opening of the clamp must first be positioned over the securing element. Then the clamp can be pushed onto the spindle neck and turned.
  • the securing element can be designed differently.
  • the simplest construction is a disc that is screwed onto the front of the spindle neck using a screw.
  • a resilient element which is mounted on the end face of the spindle neck, so that it can execute a resilient movement in the radial direction.
  • the securing element is fastened by a screw, similar to the first. But here the securing element is not screwed tightly to the spindle neck, but can be turned around the axis of the fastening screw.
  • the securing element moves back when the clamp is attached to the spindle neck. After reaching the end position of the clamp, the securing element springs back into its starting position.
  • the protective hood is held or released by rotating the securing element into a specific position.
  • the present solutions guarantee simple installation and / or also allow the protective hood to be easily rotated into the desired working position while at the same time securing against axial loosening.
  • an angle grinder which consists essentially of a gear housing 1 and a motor housing 2.
  • the gear housing 1 the rotary movement of the motor is transmitted via an angular gear to the work spindle 5, on which a grinding wheel 3 is fastened.
  • the work spindle 5 is mounted in the spindle neck 6, which protrudes from the gear housing 1.
  • a securing element 7 projects beyond the lateral surface 8 of the spindle neck 6.
  • the protective hood 10 is fastened in such a way that it is pushed over the spindle neck 6 in a certain position, as can be seen in FIG. 3. This position is to be chosen so that the clamp clip 9 passes the securing element 7 with its flange opening 11.
  • the protective hood 10 can be brought into any working position by turning and can be fixed by tightening the clamp 9 using the fastening screw 4_. It is advisable not to make the flange opening 11 at one of the points in which it comes into congruence with the securing element 7 in a frequently occurring working position of the protective hood 10.
  • An advantageous arrangement is shown in FIG. 2.
  • the securing element 7 projects beyond the outer diameter of the spindle neck 6. In this position there is a The protective hood 10 cannot move away from the spindle neck 6. Only after turning the protective hood into the position in which the securing element 7 can engage in the flange opening 11 is it possible to remove the protective hood 10 from the spindle neck 6.
  • the securing element 7 is fastened with a screw 12. But there are also other types of fastening conceivable such. B. riveting or welding.
  • the securing element can also be formed in one piece with the spindle neck or the screw 12 has a head which is so large that it protrudes over the outside diameter of the spindle neck 6 in exactly the same way as the securing element 7.
  • Fig. 5 shows that the safety function for the protective hood 10 can also be performed by a spring-loaded fuse element 15.
  • the tensioning clamp 9 of the protective hood 10 is pushed onto the lateral surface 8 of the spindle neck 6, the securing element 15, which is rotatably mounted about the axis 14 and can be moved against the force of a spring 13, withdraws and only assumes its securing function when the protective hood 10 is at the end face of the spindle neck 6 happened.
  • This embodiment is somewhat more complex than that according to FIGS. 1 to 4, but the securing element 15 can protrude beyond the outer diameter of the spindle neck 6 to such an extent that the position of the flange opening 11 no longer has to be taken into account. It is advisable to chamfer the two corresponding surfaces 17 and 18 of the securing element 15 and the clamping clip 9 so that the securing element 15 can retract when the clamping clip 9 is pushed on.
  • a corrugation or a recessed grip 16 is provided on its side facing away from the end face of the spindle neck 6.
  • the embodiment according to FIG. 6 shows a securing element 24 which is rotatably fastened on the end face of the spindle neck 6 with a screw 23.
  • a securing element 24 By rotating the securing element 24 about the axis of the screw 23, both the shorter end 20 of the securing element 24 and the longer end 25 can be rotated in the direction of the protective hood 10.
  • the lateral surface 8 of the spindle neck 6 is not surmounted by the short end 20 and the axial movement of the clamping flange 9 is unimpeded.
  • the movement of the clamping flange 9 is inhibited in the axial direction by the longer end 25 of the securing element 24.
  • a recess 19 In order to achieve a clear position of the securing element 24, a recess 19 must be provided in the spindle neck 6, into which a corresponding design 22 of the securing element 24 can snap.
  • a handle part 21 is provided on the shorter end 20.

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)
EP84111446A 1983-10-27 1984-09-26 Fixation de carter de protection pour meuleuse d'angle portative Withdrawn EP0143251A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3338917 1983-10-27
DE19833338917 DE3338917A1 (de) 1983-10-27 1983-10-27 Schutzhaubenbefestigung fuer tragbare winkelschleifer

Publications (2)

Publication Number Publication Date
EP0143251A2 true EP0143251A2 (fr) 1985-06-05
EP0143251A3 EP0143251A3 (fr) 1986-09-17

Family

ID=6212813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111446A Withdrawn EP0143251A3 (fr) 1983-10-27 1984-09-26 Fixation de carter de protection pour meuleuse d'angle portative

Country Status (3)

Country Link
US (1) US4574532A (fr)
EP (1) EP0143251A3 (fr)
DE (1) DE3338917A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322626A3 (en) * 1987-12-24 1990-10-10 & E. Fein Gmbh & Co. C. Power grinder with an adjustable protecting hood
EP0407337A1 (fr) * 1989-07-01 1991-01-09 HILTI Aktiengesellschaft Dispositif à main avec un disque à tronçonner ou une meule
US10137592B2 (en) 2013-05-06 2018-11-27 Milwaukee Electric Tool Corporation Oscillating multi-tool system

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636601A1 (de) * 1986-10-28 1988-05-05 Bosch Gmbh Robert Schutzhaube fuer schleifmaschinen, insbesondere winkelschleifer, und dazu passende befestigungsaufnahme auf diese
JPH0248218Y2 (fr) * 1987-11-11 1990-12-18
DE4113641A1 (de) * 1991-04-26 1992-10-29 Bosch Gmbh Robert Handwerkzeugmaschine
JPH0663284U (ja) * 1993-02-05 1994-09-06 リョービ株式会社 動力工具の駆動部構造
US5545082A (en) * 1994-05-02 1996-08-13 Courson; Michael W. Dust control system for rotary hand tools
US6464573B1 (en) 2000-06-30 2002-10-15 Porter-Cable Corporation Guard attachment system with knurled clamp ring
USD456234S1 (en) 2000-06-30 2002-04-30 Porter-Cable Corporation Knurled collar attachment system
USD456685S1 (en) 2000-06-30 2002-05-07 Porter-Cable Corporation Knurled collar guard
USD458825S1 (en) 2000-06-30 2002-06-18 Porter-Cable Corporation Tuck-pointing system
DE10124439A1 (de) * 2001-05-18 2002-11-21 Bosch Gmbh Robert Handgeführtes Elektrowerkzeug mit Schutzhaube
DE10259520A1 (de) * 2002-12-19 2004-07-01 Robert Bosch Gmbh Elektrohandwerkzeugmaschine
DE10343060A1 (de) * 2003-09-16 2005-04-07 Robert Bosch Gmbh Handwerkzeugmaschine mit Schutzhaube
DE10348395A1 (de) * 2003-10-17 2005-05-19 Robert Bosch Gmbh Schutzhaube für eine Elektrowerkzeugmaschine, Elektrowerkzeugmaschine sowie System mit Schutzhaube und Elektrowerkzeugmaschine
US7144194B2 (en) * 2004-04-22 2006-12-05 Kipp Jr John H Surface finisher
US20070117499A1 (en) * 2005-11-23 2007-05-24 Sunmatch Industrial Co., Ltd. Rotary protecting hood of a pneumatic grinder
DE102005063017B4 (de) 2005-12-30 2019-05-16 Robert Bosch Gmbh Handgeführtes Elektrowerkzeug mit einer Schutzhaube
DE502006006187D1 (de) * 2006-10-07 2010-04-01 Metabowerke Gmbh Elektrohandwerkzeuggerät, insbesondere ein Winkelschleifer mit einer Schutzhaube
DE102006053305A1 (de) * 2006-11-13 2008-05-15 Robert Bosch Gmbh Handwerkzeugmaschine mit Schutzhaube, insbesondere Winkelschleifer
DE102006053303A1 (de) * 2006-11-13 2008-05-15 Robert Bosch Gmbh Handwerkzeugmaschine für ein rotierendes Werkzeug mit Schutzhaube
DE102006053301A1 (de) * 2006-11-13 2008-05-15 Robert Bosch Gmbh Handwerkzeugmaschine für ein rotierendes Werkzeug mit Schutzhaube
DE102007041840A1 (de) * 2006-11-13 2008-05-15 Robert Bosch Gmbh Handwerkzeugmaschine mit Schutzhaube, insbesondere Winkelschleifer
DE102007000845A1 (de) * 2007-10-11 2009-04-16 Hilti Aktiengesellschaft Handwerkzeugmaschine
DE102007052684A1 (de) * 2007-11-05 2009-05-07 Robert Bosch Gmbh Handwerkzeugmaschine
US8137165B2 (en) * 2008-01-15 2012-03-20 Dust Collection Products, Llc Dust shroud with adjustable mounting mechanism
US8177606B2 (en) * 2008-01-15 2012-05-15 Dustless Depot, Llc Dust shroud for rotary tools
US8133094B2 (en) * 2008-01-21 2012-03-13 Dust Collection Products, Llc Dust shroud with access hatch retention mechanism
US20090183377A1 (en) * 2008-01-21 2009-07-23 Michael Loveless Dust shroud for circular saws
US8011398B2 (en) * 2008-01-22 2011-09-06 Dustless Depot, Llc Dust shroud for gas powered circular saws
DE102008040372A1 (de) * 2008-07-11 2010-01-21 Robert Bosch Gmbh Schutzhaubenverdrehsicherungsvorrichtung
US8702478B2 (en) * 2009-05-08 2014-04-22 Michael Loveless Angle grinder dust shroud with unitary adjustable mounting collar
US8381711B2 (en) 2009-06-16 2013-02-26 Dustless Depot, Llc Universal dust collection shroud for high speed gas powered saws
US8523637B2 (en) * 2009-07-21 2013-09-03 Dustless Depot, Llc Angle grinder dust shroud with slideable access hatch
US8561512B2 (en) * 2009-08-18 2013-10-22 Dustless Depot Llc Cutoff saw and stand with integrated dust filtration system
JP5579575B2 (ja) * 2010-11-02 2014-08-27 株式会社マキタ ディスクグラインダ
US9038275B2 (en) 2011-09-07 2015-05-26 Dustless Depot, Llc Reciprocating saw dust shroud
DE102012210759A1 (de) * 2012-06-25 2014-01-02 Robert Bosch Gmbh Schutzhaubenvorrichtung
US9370830B2 (en) * 2013-03-15 2016-06-21 Philip Heck Milling tool and method of using same
US9475172B2 (en) 2014-07-15 2016-10-25 Milwaukee Electric Tool Corporation Adjustable guard for power tool
USD744800S1 (en) 2014-07-16 2015-12-08 Milwaukee Electric Tool Corporation Power tool blade guard
US10201889B2 (en) * 2014-08-06 2019-02-12 Sparky Guard, LLC Fully rotatable grinder guard assembly and method for making same
US9616548B1 (en) * 2015-11-09 2017-04-11 Jian-Shiou Liaw Positioning structure for cutting machines or grinder machines
US10293421B2 (en) 2016-09-15 2019-05-21 Dustless Depot, Llc Circular saw dust collection shroud
USD816453S1 (en) 2016-09-15 2018-05-01 Dustless Depot, Llc Circular saw dust shroud
US11123839B2 (en) 2018-10-23 2021-09-21 Dustless Depot Llc Grinder dust shroud with input shaft gasket and adjustable mounting mechanism
USD908149S1 (en) 2018-10-23 2021-01-19 Dustless Depot Llc Angle grinder dust shroud with variable position slots for mounting brackets
US11273505B2 (en) 2019-03-27 2022-03-15 Dustless Depot, Llc Circular saw dust collection shroud

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1847728U (de) * 1961-07-12 1962-03-01 Bosch Gmbh Robert Schutzhaube fuer motorisch angetriebene handwerkzeugmaschine.
DE1907371A1 (de) * 1969-02-14 1970-09-03 Gerd Schwafferts Planschleifvorsatz
DE7500876U (de) * 1975-01-15 1976-07-22 Robert Bosch Gmbh, 7000 Stuttgart Schutzhaube fuer eine schleifmaschine
IT1040243B (it) * 1975-07-30 1979-12-20 Star Utensili Elett Carter di protezione pe utensili angolari portatili
DE7620075U1 (de) * 1976-06-24 1976-12-02 C.& E. Fein Gmbh & Co, 7000 Stuttgart Schutzvorrichtung
DE3135820C2 (de) * 1981-09-10 1985-01-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Handschleifmaschine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322626A3 (en) * 1987-12-24 1990-10-10 & E. Fein Gmbh & Co. C. Power grinder with an adjustable protecting hood
EP0407337A1 (fr) * 1989-07-01 1991-01-09 HILTI Aktiengesellschaft Dispositif à main avec un disque à tronçonner ou une meule
US10137592B2 (en) 2013-05-06 2018-11-27 Milwaukee Electric Tool Corporation Oscillating multi-tool system
US10940605B2 (en) 2013-05-06 2021-03-09 Milwaukee Electric Tool Corporation Oscillating multi-tool system
US11724413B2 (en) 2013-05-06 2023-08-15 Milwaukee Electric Tool Corporation Oscillating multi-tool system
US12179378B2 (en) 2013-05-06 2024-12-31 Milwaukee Electric Tool Corporation Oscillating multi-tool system

Also Published As

Publication number Publication date
DE3338917A1 (de) 1985-05-09
EP0143251A3 (fr) 1986-09-17
US4574532A (en) 1986-03-11

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Inventor name: DIE ERFINDER HABEN AUF IHRE NENNUNG VERZICHTET.