DE29908648U1 - Hand-held concrete grinder - Google Patents

Hand-held concrete grinder

Info

Publication number
DE29908648U1
DE29908648U1 DE29908648U DE29908648U DE29908648U1 DE 29908648 U1 DE29908648 U1 DE 29908648U1 DE 29908648 U DE29908648 U DE 29908648U DE 29908648 U DE29908648 U DE 29908648U DE 29908648 U1 DE29908648 U1 DE 29908648U1
Authority
DE
Germany
Prior art keywords
funnel
jacket
hood
secondary air
grinder
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
DE29908648U
Other languages
German (de)
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
Priority to DE29908648U priority Critical patent/DE29908648U1/en
Priority to CH7502000A priority patent/CH694756A5/en
Priority to JP2000140517A priority patent/JP2000326199A/en
Publication of DE29908648U1 publication Critical patent/DE29908648U1/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
    • 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
    • B24B23/028—Angle 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
    • B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (5)

1. Handgeführter Betonschleifer mit einer in einem Schleiferhals (14) drehbar gelagerten, motorisch angetriebenen Arbeitsspindel (12), mit einer an der Arbeitsspindel (12) festspannbaren Schleifscheibe (16) und mit einer die Schleifscheibe (16) überdeckenden, trichterförmigen Absaughaube (18), die im Topfboden (183) eines am Grund des Trichterteils (181) sich fortsetzenden, topfförmigen Befestigungskragens (182) eine zentrale Durchtrittsöffnung (19) für den Schleiferhals (14) und Durchstecklöcher (20) für im Schleiferhals (14) einschraubbare Befestigungsschrauben sowie im Haubenmantel mindestens eine Nebenluftöffnung (24) zur Unterdruckreduzierung im Haubeninnern aufweist, dadurch gekennzeichnet, daß die mindestens eine Nebenluftöffnung (24) im Trichtermantel des Trichterteils (181) der Abdeckhaube (18) angeordnet, großflächig ausgebildet und kiemenartig abgedeckt ist.1. Hand-held concrete grinder with a motor-driven work spindle ( 12 ) rotatably mounted in a grinder neck ( 14 ), with a grinding wheel ( 16 ) which can be clamped on the work spindle ( 12 ) and with a funnel-shaped suction hood ( 18 ) covering the grinding wheel ( 16 ) which in the pot bottom ( 183 ) of a pot-shaped fastening collar ( 182 ) continuing at the base of the funnel part ( 181 ) has a central passage opening ( 19 ) for the grinder neck ( 14 ) and push-through holes ( 20 ) for fastening screws which can be screwed into the grinder neck ( 14 ) and in The hood jacket has at least one secondary air opening ( 24 ) for reducing the vacuum inside the hood, characterized in that the at least one secondary air opening ( 24 ) is arranged in the funnel jacket of the funnel part ( 181 ) of the cover hood ( 18 ), is of large area and is gill-like covered. 2. Betonschleifer nach Anspruch 1, dadurch gekennzeichnet, daß mehrere Nebenluftöffnungen (24) mit gleichen Abmessungen übereinander angeordnet sind.2. Concrete grinder according to claim 1, characterized in that a plurality of secondary air openings ( 24 ) with the same dimensions are arranged one above the other. 3. Betonschleifer nach Anspruch 2, dadurch gekennzeichnet, daß die Nebenluftöffnungen (24) in Stanzrichtung der Durchtrittsöffnung (19) und der Durchstecklöcher (20) ausgestanzt und ausgebogen sind.3. Concrete grinder according to claim 2, characterized in that the secondary air openings ( 24 ) in the punching direction of the passage opening ( 19 ) and the push-through holes ( 20 ) are punched out and bent out. 4. Betonschleifer nach Anspruch 3, dadurch gekennzeichnet, daß beim vom Innern der Absaughaube (18) her erfolgenden Stanzen der Durchtrittsöffnung (19) und Befestigungslöcher (20) eine der Zahl der Nebenluftöffnungen (24) entsprechende Zahl von zueinander parallelen Schlitzen (25) in den Trichtermantel eingestanzt wird und oberhalb der Schlitze (25) dazu parallel verlaufende Mantelstreifen aus dem Trichtermantel als Kiemen (26) nach außen ausgedrückt werden.4. Concrete grinder according to claim 3, characterized in that when punching the passage opening ( 19 ) and fastening holes ( 20 ) from inside the suction hood ( 18 ), one of the number of secondary air openings ( 24 ) corresponding number of mutually parallel slots ( 25 ) in the funnel jacket is punched in and above the slots ( 25 ) parallel jacket strips are pressed out from the funnel jacket as gills ( 26 ). 5. Betonschleifer nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß im Trichtermantel des Trichterteils (181) der Absaughaube (18) eine Absaugöffnung (21) vorgesehen ist, an der ein Absaugstutzen (22) zum Anschließen einer Absaugeinrichtung angesetzt ist.5. Concrete grinder according to one of claims 1-4, characterized in that a suction opening ( 21 ) is provided in the funnel jacket of the funnel part ( 181 ) of the suction hood ( 18 ), on which a suction nozzle ( 22 ) is attached for connecting a suction device.
DE29908648U 1999-05-15 1999-05-15 Hand-held concrete grinder Expired - Lifetime DE29908648U1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE29908648U DE29908648U1 (en) 1999-05-15 1999-05-15 Hand-held concrete grinder
CH7502000A CH694756A5 (en) 1999-05-15 2000-04-14 Hand operated concrete grinder has funnel shaped housing with auxiliary suction air inlets
JP2000140517A JP2000326199A (en) 1999-05-15 2000-05-12 Manual guiding type concrete grinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29908648U DE29908648U1 (en) 1999-05-15 1999-05-15 Hand-held concrete grinder

Publications (1)

Publication Number Publication Date
DE29908648U1 true DE29908648U1 (en) 2000-09-21

Family

ID=8073613

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29908648U Expired - Lifetime DE29908648U1 (en) 1999-05-15 1999-05-15 Hand-held concrete grinder

Country Status (3)

Country Link
JP (1) JP2000326199A (en)
CH (1) CH694756A5 (en)
DE (1) DE29908648U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018819C2 (en) * 2001-08-24 2003-02-25 Tno Power tool with dust extraction has air inlet near continuation of movement direction of particles released from workpiece
WO2003018257A1 (en) * 2001-08-24 2003-03-06 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Power tool with dust extraction
EP3332911A1 (en) * 2016-12-06 2018-06-13 HILTI Aktiengesellschaft Dust hood for a grinding device
CN110508083A (en) * 2019-09-04 2019-11-29 上海亿准精密模具有限公司 Cleaner is used in a kind of production of high-precision mold
CN112388468A (en) * 2019-08-16 2021-02-23 博世电动工具（中国）有限公司 Hand-held power tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2186600B1 (en) 2008-11-12 2011-11-02 Collomix Rühr-und Mischgeräte GmbH Surface grinder, especially concrete grinder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018819C2 (en) * 2001-08-24 2003-02-25 Tno Power tool with dust extraction has air inlet near continuation of movement direction of particles released from workpiece
WO2003018257A1 (en) * 2001-08-24 2003-03-06 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Power tool with dust extraction
EP3332911A1 (en) * 2016-12-06 2018-06-13 HILTI Aktiengesellschaft Dust hood for a grinding device
WO2018104098A1 (en) * 2016-12-06 2018-06-14 Hilti Aktiengesellschaft Dust hood for a grinder
CN112388468A (en) * 2019-08-16 2021-02-23 博世电动工具（中国）有限公司 Hand-held power tool
CN110508083A (en) * 2019-09-04 2019-11-29 上海亿准精密模具有限公司 Cleaner is used in a kind of production of high-precision mold

Also Published As

Publication number Publication date
JP2000326199A (en) 2000-11-28
CH694756A5 (en) 2005-07-15

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20001026

R150 Term of protection extended to 6 years

Effective date: 20021017

R151 Term of protection extended to 8 years

Effective date: 20050720

R152 Term of protection extended to 10 years

Effective date: 20070809

R071 Expiry of right