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DE2756362A1 - PROTECTIVE COVER, IN PARTICULAR FOR AN ELECTRIC HAND TOOL - Google Patents

PROTECTIVE COVER, IN PARTICULAR FOR AN ELECTRIC HAND TOOL

Info

Publication number
DE2756362A1
DE2756362A1 DE19772756362 DE2756362A DE2756362A1 DE 2756362 A1 DE2756362 A1 DE 2756362A1 DE 19772756362 DE19772756362 DE 19772756362 DE 2756362 A DE2756362 A DE 2756362A DE 2756362 A1 DE2756362 A1 DE 2756362A1
Authority
DE
Germany
Prior art keywords
protective hood
hood according
area
hand tool
electric 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.)
Withdrawn
Application number
DE19772756362
Other languages
German (de)
Inventor
Fritz Ing Grad Schaedlich
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 DE19772756362 priority Critical patent/DE2756362A1/en
Priority to GB18522/78A priority patent/GB1577286A/en
Priority to SE7812861A priority patent/SE7812861L/en
Priority to IT30921/78A priority patent/IT1101067B/en
Priority to ES1978240168U priority patent/ES240168Y/en
Publication of DE2756362A1 publication Critical patent/DE2756362A1/en
Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Description

γ- R. L 2 : γ- R. L 2 :

Stand dar TechnikState of the art

Die Erfindung geht aus von einer Schutzhaube nach der Gattung des Hauptanspruchs. Bei einer derartigen bekannten Schutzhaube treten während des Betriebs so starke Resonanzen auf, daß die Schutzhaube zerbrechen kann.The invention is based on a protective hood according to the preamble of the main claim. In such a known Protective cover resonances are so strong during operation that the protective cover can break.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Anordnung mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß durch entsprechende Dämpfungsmaßnahmen die Resonanzen weitgehend vermieden oder stark abgeschwächt werden.The arrangement according to the invention with the characterizing features The main claim has the advantage that the resonances are largely due to appropriate damping measures avoided or greatly weakened.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung wiedergegeben. Diese zeigt in Figur 1 einen Schnitt durch eine Schutzhaube, in Figur 2 eine Draufsicht auf diese Schutzhaube, in den Figuren 3 und 4 eine Abwandlung des Ausführungsbeispiels nach den Figuren 1 und 2.An embodiment of the invention is shown in the drawing. This shows a section through in FIG a protective hood, in Figure 2 a plan view of this protective hood, in Figures 3 and 4 a modification of the embodiment according to FIGS. 1 and 2.

Beschreibung der ErfindungDescription of the invention

Die Schutzhaube nach den Figuren 1 bis 4 besteht aus Stahlblech, sie hat einen kurzen rohrsegmentförmigen Stutzen 10, mit dem sie an einen Winkelschleifer angeflanscht wird, sowie einen an den Stutzen angeformten, sich weit nach außen erstreckenden konischen Bereich 11, der einen Halbkreisbogen bildet. Am Ende dieses Bereichs befindet sich ein zylindrischer Versteifungsrand 12.The protective hood according to Figures 1 to 4 is made of sheet steel, it has a short tubular segment-shaped connector 10, with which it is flanged to an angle grinder, as well as one that is molded onto the socket and extends far outwards extending conical area 11, which has a semicircular arc forms. At the end of this area there is a cylindrical stiffening edge 12.

Im konischen Bereich 11 sind mehrere radial verlaufende Einprägungen 13 ausgebildet, deren LängserStreckung etwaIn the conical area 11 are several radially extending Embossings 13 formed, their longitudinal extension about

- 3 909825/0375 - 3 909825/0375

R.R.

zwei Drittel des konischen Bereichs einnehmen. Die Schutzhaube wird mit einer nicht dargestellten Rohrschelle am Schleifer befestigt. Damit erreicht man, daß gegenüber einer glatten Oberfläche im konischen Bereich eine wesentliche Minderung der Resonanz der Schutzhaube im Betrieb erfolgt. Zusätz- \ lihc kann in der Bohrung 14 des Stutzens 10 noch eine elastische Einlage 15 als Dämpfungselement angeordnet sein, z. B. eine Gummimanschette.occupy two thirds of the conical area. The protective hood is attached to the grinder with a pipe clamp (not shown) attached. This achieves a significant reduction in the conical area compared to a smooth surface the resonance of the protective hood takes place during operation. In addition, in the bore 14 of the connecting piece 10, an elastic one can be used Insert 15 may be arranged as a damping element, for. B. a rubber sleeve.

Wie das Ausführungsbeispiel nach den Figuren 3 und 4 zeigt, sind hier die Einprägungen als umlaufende Wulste 17, 18 ausgebildet. Die beiden genannten Maßnahmen können aber auch kombiniert werden.As the embodiment according to Figures 3 and 4 shows, Here the impressions are designed as circumferential beads 17, 18. The two measures mentioned can also be used be combined.

909825/0375909825/0375

Claims (6)

R. 4 ? ? 3
9.12.1977 Wd/HtR. 4? ? 3
December 9, 1977 Wd / Ht ROBERT BOSCH GMBH, 7000 Stuttgart 1ROBERT BOSCH GMBH, 7000 Stuttgart 1 AnsprücheExpectations M .} Schutzhaube zum Anflanschen an ein Elektro-Handwerkzeug, insbesondere Winkelschleifer, bestehend aus einem rohrsegmentförmigen Befestigungsstutzen und einem daran angeformten, fächerförmig sich weit nach außen erstreckenden Bereich, der in einem zylindrischen Randabschnitt übergeht, dadurch gekennzeichnet, daß im Bereich (11) mehrere radial und/oder in ümfangsrichtung verlaufende Wulste (13; 17, 18) ausgebildet sind.M.} Protective hood for flange-mounting on an electric hand tool, in particular an angle grinder, consisting of a tubular segment Fastening stub and an integrally formed, fan-shaped far outwardly extending area, the merges into a cylindrical edge section, characterized in that in the area (11) several radial and / or in Bulges (13; 17, 18) extending in the circumferential direction are formed. 2. Schutzhaube nach Anspruch 1, dadurch gekennzeichnet, daß die Wulste als Einprägungen ausgebildet sind.2. Protective hood according to claim 1, characterized in that the beads are designed as embossments. 3. Schutzhaube nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die in ümfangsrichtung verlaufenden Wulste (17, 18) durchgehend ausgebildet sind.3. Protective hood according to claim 1 and / or 2, characterized in that that the bulges (17, 18) are designed continuously. 4. Schutzhaube nach Anspruch 1 und/oder· 2,·dadurch gekennzeichnet, daß die radialen Wulste sich nur über einen wesentlichen Teil des Bereichs (11) erstrecken.4. Protective hood according to claim 1 and / or 2, characterized in that that the radial beads extend only over a substantial part of the area (11). 909825/0375909825/0375 ORIGINAL INSPECTEDORIGINAL INSPECTED 42? J42? J 5. Schutzhaube nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß in der Bohrung (14) des Stutzens (10) ein Dämpfungselement, zum Beispiel in Form einer Gummieinlage, angeordnet ist.5. Protective hood according to one of claims 1 to 4, characterized in that a damping element, for example in the form of a rubber insert, is arranged in the bore (14) of the connecting piece (10). 6. Schutzhaube nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der fächerförmige Bereich konisch ausgebildet ist. 6. A protective hood according to one of claims 1 to 5, characterized in that the fan-shaped portion is conical. 909825/0375909825/0375
DE19772756362 1977-12-17 1977-12-17 PROTECTIVE COVER, IN PARTICULAR FOR AN ELECTRIC HAND TOOL Withdrawn DE2756362A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19772756362 DE2756362A1 (en) 1977-12-17 1977-12-17 PROTECTIVE COVER, IN PARTICULAR FOR AN ELECTRIC HAND TOOL
GB18522/78A GB1577286A (en) 1977-12-17 1978-05-09 Protective hood for attachment to a hand tool machine especially an electric hand tool
SE7812861A SE7812861L (en) 1977-12-17 1978-12-14 PROTECTIVE CAP, SPECIAL FOR AN ELECTRIC HAND TOOL
IT30921/78A IT1101067B (en) 1977-12-17 1978-12-15 PROTECTION COVER, ESPECIALLY FOR ELECTRIC ARRESIS
ES1978240168U ES240168Y (en) 1977-12-17 1978-12-15 PROTECTIVE CAP TO CLAMP TO AN ELECTRICAL HAND TOOL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772756362 DE2756362A1 (en) 1977-12-17 1977-12-17 PROTECTIVE COVER, IN PARTICULAR FOR AN ELECTRIC HAND TOOL

Publications (1)

Publication Number Publication Date
DE2756362A1 true DE2756362A1 (en) 1979-06-21

Family

ID=6026424

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772756362 Withdrawn DE2756362A1 (en) 1977-12-17 1977-12-17 PROTECTIVE COVER, IN PARTICULAR FOR AN ELECTRIC HAND TOOL

Country Status (5)

Country Link
DE (1) DE2756362A1 (en)
ES (1) ES240168Y (en)
GB (1) GB1577286A (en)
IT (1) IT1101067B (en)
SE (1) SE7812861L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009043615A1 (en) * 2007-09-27 2009-04-09 Robert Bosch Gmbh Protective device
WO2009059846A1 (en) 2007-11-05 2009-05-14 Robert Bosch Gmbh Hand-held power tool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005043118A1 (en) * 2005-09-10 2007-03-15 Andreas Stihl Ag & Co. Kg implement
EP1864754A1 (en) * 2006-06-06 2007-12-12 Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO Protective cover for an electric grinding machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009043615A1 (en) * 2007-09-27 2009-04-09 Robert Bosch Gmbh Protective device
CN101808779B (en) * 2007-09-27 2013-08-07 罗伯特·博世有限公司 Protective device
RU2492040C2 (en) * 2007-09-27 2013-09-10 Роберт Бош Гмбх Safety device
WO2009059846A1 (en) 2007-11-05 2009-05-14 Robert Bosch Gmbh Hand-held power tool
RU2490108C2 (en) * 2007-11-05 2013-08-20 Роберт Бош Гмбх Hand-held machine

Also Published As

Publication number Publication date
IT1101067B (en) 1985-09-28
GB1577286A (en) 1980-10-22
ES240168U (en) 1979-02-01
IT7830921A0 (en) 1978-12-15
ES240168Y (en) 1979-07-01
SE7812861L (en) 1979-06-18

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Legal Events

Date Code Title Description
8120 Willingness to grant licences paragraph 23
8139 Disposal/non-payment of the annual fee