Electric Hand-Held Power Tool
An electric hand-held power tool is disclosed that includes a machine housing (11) that has at least one dust-ejection opening (12), and a dust-collection container (13) attached to dust-ejection opening (12), the dust-collection container (13) including a dust-collection box (15) and a cover (16) that closes the dust-collection box (15). To reduce manufacturing costs and provide simple handling of the electric hand-held power tool, dust-collection box (15) of dust-collection container (13) is integrally joined with machine housing (11).
The present invention is directed to an electric hand-held power tool according to the definition of the species in Claim 1.
With electric hand-held sanders in particular, such as eccentric or finishing sanders, cloth bags, paper bags or boxes are used to collect the sanding dust, and they are slid—using an outwardly-projecting inlet adapter—onto a dust-ejection adapter that encloses a dust-ejection opening in the machine housing. While paper bags are designed to be disposable and to be thrown away with the collected dust, boxes have a dust collection chamber that, after the box is opened, can be emptied so the dust collection container can be reused. The inlet adapter leads into the dust collection chamber connected to an exhaust opening that has a dust filter located in front of it.
It has already been proposed to configure a dust collection container for an electric hand-held sander as a box with a retracted, integrated inlet adapter and a dust collection chamber located above the inlet adapter. The dust collection chamber is closed with a removable cover that has an exhaust opening and a dust filter located in front of the exhaust opening. The inlet adapter is slid onto a dust-ejection adapter formed on the machine housing, thereby resulting in a dust collection container having a compact design and short overall length that does not get in the way during operation of the hand-held sander and, to be emptied, can be easily removed from the dust-ejection adapter on the machine and then slid back on. To empty the dust-collection chamber, the cover with the attached dust filter must be removed.
ADVANTAGES OF THE INVENTIONThe electric hand-held power tool with the features of Claim 1 has the advantage that, due to the fact that the dust-collection box is an integral component of the machine housing, a separate housing is not required for the dust-collection container, thereby resulting in a considerable cost reduction in the manufacture of the electric hand-held power tool. In addition, improved and simplified handling of the machine is achieved, since the dust-collection container must no longer be separated—that is, detached or pulled off—from the machine housing to be emptied. Instead, it is only necessary to remove the cover from the dust-collection box. Working times are shortened considerably as a result, in particular with electric hand-held power tools that generate a great deal of dust.
Due to the measures listed in the further claims, advantageous further developments and improvements of the electric hand-held power tool described in Claim 1 are made possible.
The present invention is described in greater detail in the description below with reference to exemplary embodiments shown in the drawing.
The eccentric sander shown in a side view in
Dust-collection container 13 has a dust-collection box, referred to below as collection box 15, and a cover 16 that closes collection box 15. Cover 16 is provided with an exhaust opening 17 that has a dust filter 18 located in front of it. Dust filter 18 is attached to the inside of cover 16 and is removed when collection box 15 is opened by removing cover 16 from collection box 15. Collection box 15 is integrally joined with machine housing 11 and is designed as an injection-moulded part together with machine housing 11. In the exemplary embodiment in
In the embodiments of dust-collection container 13 according to
In the exemplary embodiment of the eccentric sander according to
With the eccentric sander with integrated dust-collection container 13 shown as an exemplary embodiment in
With the eccentric sander shown in a side view in
In the exemplary embodiment of the eccentric sander according to
The various embodiments of dust-collection container 13 can also be used, of course, as an integral component of machine 11 of a finishing sander or any other type of electric hand-held power tool that produces sanding dust or saw dust.
With the exemplary embodiments shown, dust filter 18 is located in each of the dust-collection boxes 15. In the case of another advantageous exemplary embodiment, which is not shown, the dust-collection box can be located inside the dust filter instead.
Claims
1. an electric hand-held power tool with a machine housing (11) that has at least one dust-ejection opening (12) and a dust-collection container (13) connected to dust-ejection opening (12), the dust-collection container (13) having a dust-collection box (15) and a cover (16) that closes the dust-collection box (15),
- wherein
- the dust-collection box (15) is integrally joined with the machine housing (11).
2. The electric hand-held power tool as recited in claim 1,
- wherein
- the dust-collection box (15) has a cuboid shape with two open sides, the first open side facing machine housing (11) and covering its dust-collection opening (12), and the second open side being closed with the cover (16).
3. The electric hand-held power tool as recited in claim 2,
- wherein
- the two open sides are the end faces of dust-collection box (15) with the smaller cross sections.
4. The electric hand-held power tool as recited in claim 2,
- wherein
- the two open sides are the longitudinal sides of dust-collection box (15) with the larger cross sections.
5. The electric hand-held power tool as recited in claim 4,
- wherein
- the two open longitudinal sides of dust-collection box (15) are diametrically opposed.
6. The electric hand-held power tool as recited in claim 4,
- wherein
- the two open longitudinal sides of dust-collection box (15) abut each other along a lateral longitudinal edge.
7. The electric hand-held power tool as recited in claim 2,
- wherein
- the first open side is one of the longitudinal sides of dust-collection box (15) with the larger cross section, and the second open side is the upper or lower—as viewed in the working position of the machine—end face of collection box (15) with the smaller cross section.
8. The electric hand-held power tool as recited in claim 1,
- wherein
- the dust-collection box (15) has a cylindrical shape with two open end faces, the first of which faces machine housing (11) and covers the dust-collection opening (12), and the second open end face being closed with the cover (16).
9. The electric hand-held power tool as recited in claim 1,
- wherein
- the dust-collection container (13) has at least one dust filter (18) and at least one exhaust opening (17).
10. The electric hand-held power tool as recited in claim 9,
- wherein
- the dust filter (18) is located in the dust-collection box (15) or the latter is located inside the dust filter.
11. The electric hand-held power tool as recited in claim 8,
- wherein,
- a plurality of exhaust openings (17) is located in the wall of dust-collection box (15), in particular in its cylinder wall.
12. The electric hand-held power tool as recited in claim 9,
- wherein
- the at least one exhaust opening (17) is configured in the cover (16) or in the collection box (15).
13. The electric hand-held power tool as recited in claim 9,
- wherein
- the dust filter (18) is attached as a separate component, either in the cover (16) or on the collection box (15).
14. The electric hand-held power tool as recited in claim 9,
- wherein
- the dust filter (18) is a non-detachable component of the cover (16).
15. The electric hand-held power tool as recited in claim 9,
- wherein
- the dust filter (18) is configured as a pleated filter.
16. The electric hand-held power tool as recited in claim 15,
- wherein
- the pleated filter is configured in the shape of a tube.
17. The electric hand-held power tool as recited in claim 1,
- wherein
- a handle (20) is integrally formed on machine housing (11), and the handle (20) is configured as a dust-collection container (13).
Type: Application
Filed: Nov 8, 2004
Publication Date: Jan 24, 2008
Inventors: Doris Reich (Stuttgart), Steffen Wuensch (Holzgerlingen), Gustav Sieber (Miskole)
Application Number: 10/582,289
International Classification: B24B 55/10 (20060101);