DE1073606B - Electric hand tools with cooling air brought in from another point - Google Patents
Electric hand tools with cooling air brought in from another pointInfo
- Publication number
- DE1073606B DE1073606B DENDAT1073606D DE1073606DA DE1073606B DE 1073606 B DE1073606 B DE 1073606B DE NDAT1073606 D DENDAT1073606 D DE NDAT1073606D DE 1073606D A DE1073606D A DE 1073606DA DE 1073606 B DE1073606 B DE 1073606B
- Authority
- DE
- Germany
- Prior art keywords
- cooling air
- electric hand
- hand tools
- another point
- air brought
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims description 12
- 239000002184 metal Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 2
- 210000003127 Knee Anatomy 0.000 description 1
- 241000785686 Sander Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 238000003197 gene knockdown Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
Elektrisches Handwerkszeug mit von einer anderen Stelle herangeführter Kühlluft Die Erfindung bezieht sich auf ein elektrisches Handwerkszeug mit von einer anderen, vom Arbeitsplatz entfernt liegenden Stelle durch einen biegsamen Schlauch herangeführter und gefilterter Kühlluft.Electric hand tools with brought in from another place Cooling air The invention relates to an electric hand tool with one another place away from the workplace by means of a flexible hose brought in and filtered cooling air.
Der Erfindung liegt die technische Aufgabe zugrunde, das Elektrowerkzeug auch zum Trennen von Steinplatten, also für Betriebe verwendbar zu machen, bei denen eine intensive Staubentwicklung stattfindet. Der Grundgedanke ist hierbei der, daß dem Elektrowerkzeug gefilterte Kühlluft von außen her zugeführt wird.The invention is based on the technical problem, the power tool also for separating stone slabs, so to make them usable for companies where intensive dust generation takes place. The basic idea here is that filtered cooling air is supplied from the outside to the power tool.
Das Ergebnis eingehender Untersuchungen ist eine überraschend einfache Lösung, gemäß welcher eine eigene Kühlluftleitung für die Heranführung der gefilterten Kühlluft vorgesehen ist, die von einem großflächigen Filterkasten ausgeht.The result of in-depth research is surprisingly simple Solution, according to which a separate cooling air line for the supply of the filtered Cooling air is provided, which emanates from a large filter box.
In Weiterbildung dieses Gedankens kann der für die Heranführung der im großflächigen Filterkasten gefilterten Luft verwendete Schlauch mit dem Motor durch einen am zylindrischen Blechmantel angebrachten Stutzen verbunden sein.In further development of this thought, the person responsible for introducing the Air filtered in the large filter box used hose with the engine be connected by a nozzle attached to the cylindrical sheet metal jacket.
Wie dies im einzelnen gedacht ist, wird an Hand der Zeichnung an einem Ausführungsbeispiel dargestellt, in der Fig. 1 den Längsschnitt durch einen Elektromotor in der Verwendung als Elektro-Handschleifer mit dem durch einen Schlauch verbundenen großflächigen Filterkasten und Fig. 2 einen Schnitt nach Linie II-II von Fig. 1 darstellt.How this is intended in detail is based on the drawing on a Exemplary embodiment shown in FIG. 1 shows the longitudinal section through an electric motor When used as an electric hand sander with the connected by a hose large-area filter box and FIG. 2 shows a section along line II-II of FIG. 1 represents.
Wesentlich für die Erfindung ist nunmehr der großflächige Filterkasten 21, der mit Hilfe einer eigenen beweglichen Kühlluftleitung 22 dem Motor des Elektrowerkzeuges gefilterte Kühlluft zuführt.The large-area filter box is now essential for the invention 21, the motor of the power tool with the help of its own movable cooling air line 22 supplied filtered cooling air.
Beim dargestellten Ausführungsbeispiel ist weiter der als Kühlluftleitung ausgebildete Schlauch 22 mit dem Motor durch einen am zylindrischen Blechmantel 24 angebrachten Stutzen 23 verbunden.In the illustrated embodiment, it is also used as a cooling air line formed hose 22 with the motor through a cylindrical sheet metal jacket 24 attached nozzle 23 connected.
Aus der Zeichnung ist weiter ersichtlich, wie mittels der Niete 25 am Ausblasekopf ein Stahlband 26 befestigt ist, an dem mittels der Niete 28 der Kniehebelverschluß 29 (Bierflaschenverschluß) befestigt ist. Dieser Kniehebelverschluß greift in einen hakenförmigen Ansatz 14' der Kappe 14 ein.The drawing also shows how the rivets 25 a steel band 26 is attached to the blow-out head, to which by means of rivets 28 the Knee lever lock 29 (beer bottle lock) is attached. This toggle lock engages in a hook-shaped extension 14 ′ of the cap 14.
Zu erwähnen ist noch, daß das erfindungsgemäße Zusatzgerät, also der Schlauchfilter, gleichfalls den Motor gegen Wasser schützt, so daß also auch in der Form gearbeitet werden kann, daß man den Staub durch Wasser niederschlägt. Dies ist deshalb möglich, weil der Schlauch außerhalb des Wassernebels trockene Luft zuführen kann.It should also be mentioned that the additional device according to the invention, so the Hose filter, also protects the engine against water, so that also in the form can be worked that you knock down the dust by water. this is possible because the hose outside the water mist is dry air can feed.
Das erfindungsgemäße Zusatzgerät hat also die doppelte Bedeutung, daß es erstens bei intensiver Staubentwicklung einwandfrei arbeitet, zweitens aber auch bei der Niederschlagung des Staubes durch Wasser den Eintritt von Wassernebel in das Innere des Motors mit der Kühlluft verhindert.The additional device according to the invention has the double meaning that, firstly, it works flawlessly when there is intense dust development, but secondly even when the dust is precipitated by water, the entry of water mist into the interior of the motor with the cooling air.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1073606B true DE1073606B (en) | 1960-01-21 |
Family
ID=597832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1073606D Pending DE1073606B (en) | Electric hand tools with cooling air brought in from another point |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1073606B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1204101B (en) * | 1962-07-26 | 1965-10-28 | Wilhelm Bender | Dust protection device for the cooling air sucked in by the motor fan wheel of a handheld electrical device, especially a handheld grinder, from a filter box via a flexible hose |
| DE102004056679A1 (en) * | 2004-11-18 | 2006-05-24 | Flex-Elektrowerkzeuge Gmbh | Hand tool and method for air cooling a drive motor of a power tool |
| WO2007067117A1 (en) * | 2005-12-07 | 2007-06-14 | Atlas Copco Tools Ab | Electric portable grinder with air cooling system |
| US7722444B2 (en) | 2005-05-13 | 2010-05-25 | Black & Decker Inc. | Angle grinder |
| US10818450B2 (en) | 2017-06-14 | 2020-10-27 | Black & Decker Inc. | Paddle switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1484962A (en) * | 1919-10-07 | 1924-02-26 | Motor Prot Company | Protection for electric motors |
| DE850918C (en) * | 1951-02-13 | 1952-09-29 | Helmut Dr Zimmermann | Fan driven by an electric motor for conveying gases and vapors |
| US2776385A (en) * | 1953-05-28 | 1957-01-01 | Ami Ind Inc | Connecting cord for use in connection with an electric power unit |
-
0
- DE DENDAT1073606D patent/DE1073606B/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1484962A (en) * | 1919-10-07 | 1924-02-26 | Motor Prot Company | Protection for electric motors |
| DE850918C (en) * | 1951-02-13 | 1952-09-29 | Helmut Dr Zimmermann | Fan driven by an electric motor for conveying gases and vapors |
| US2776385A (en) * | 1953-05-28 | 1957-01-01 | Ami Ind Inc | Connecting cord for use in connection with an electric power unit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1204101B (en) * | 1962-07-26 | 1965-10-28 | Wilhelm Bender | Dust protection device for the cooling air sucked in by the motor fan wheel of a handheld electrical device, especially a handheld grinder, from a filter box via a flexible hose |
| DE102004056679A1 (en) * | 2004-11-18 | 2006-05-24 | Flex-Elektrowerkzeuge Gmbh | Hand tool and method for air cooling a drive motor of a power tool |
| EP1658936A1 (en) * | 2004-11-18 | 2006-05-24 | Flex-Elektrowerkzeuge GmbH | Portable power tool |
| US7722444B2 (en) | 2005-05-13 | 2010-05-25 | Black & Decker Inc. | Angle grinder |
| WO2007067117A1 (en) * | 2005-12-07 | 2007-06-14 | Atlas Copco Tools Ab | Electric portable grinder with air cooling system |
| US7794305B2 (en) | 2005-12-07 | 2010-09-14 | Atlas Copco Tools Ab | Electric portable grinder with air cooling system |
| US10818450B2 (en) | 2017-06-14 | 2020-10-27 | Black & Decker Inc. | Paddle switch |
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