Dust Removal Device and Method for Changing a Filter Element in a Dust Removal Device

Abstract

A dust removal device includes a suction head and at least one filter element. The at least one filter element is disposed obliquely within the dust removal device such that floating mounting of the suction head is maintained by automatic, vacuum-induced suction on the at least one filter element. A method for changing a filter element in a dust removal device includes replacing a filter element from above.

Claims

1.-6. (canceled)

7. A dust removal device, comprising: a suction head; and at least one filter element; wherein the at least one filter element is disposed obliquely within the dust removal device such that floating mounting of the suction head is maintained by automatic, vacuum-induced suction on the at least one filter element.

8. The dust removal device as claimed in claim 7, wherein the at least one filter element comprises two filter elements and wherein the two filter elements are disposed in a V shape.

9. The dust removal device as claimed in claim 8, wherein the two filter elements are disposed within the dust removal device such that respective filter sides of the two filter elements face one another and wherein a lower spacing between the two filter elements is smaller than an upper spacing between the two filter elements.

10. The dust removal device as claimed in claim 7, wherein an oblique position of the at least one filter element is defined by an angle formed by a central axis which extends substantially centrally through the dust removal device and by an axis which extends through the at least one filter element.

11. The dust removal device as claimed in claim 10, wherein the angle is in a range between 2° and 60°.

12. A method for changing a filter element in a dust removal device, comprising the steps of: a) opening an upper part of the dust removal device and thus exposing an interior of the dust removal device and making a first filter element of the dust removal device accessible; b) removing the first filter element from the interior of the dust removal device, wherein the removing of the first filter element is performed from above; and c) inserting a second filter element into the interior of the dust removal device, wherein the inserting of the second filter element is performed from above, after step b).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG. 1 shows a side view of a preferred embodiment of a dust removal device; and

[0027] FIG. 2 shows a side view of a preferred embodiment of a suction head.

DETAILED DESCRIPTION OF THE DRAWINGS

[0028] FIG. 1 shows a side view of a preferred embodiment of a dust removal device (1). Arranged in the upper region of the dust removal device (1) is a suction head (2), while the lower region of the dust removal device (1) is formed by a collecting container (3) for receiving the dust sucked in.

[0029] FIG. 2 shows a side view of a preferred embodiment of a suction head (2), wherein at least one filter element (4) is arranged in the suction head (2) of the dust removal device (1). In a particularly preferred embodiment of the invention, the dust removal device (1) comprises two filter elements (4), which are arranged obliquely within the suction head (2). In the case of a filter assembly with two filter elements (4), it is preferred if the two filter elements (4) have the shape of a letter “V”. The arrangement of the filter elements (4) or the oblique position of the filter elements (4) can be described by a slope angle (12) alpha, which is defined by two theoretical axes (11, 12). A virtual central axis (10) preferably extends centrally from the top down through the suction head (2) or the dust removal device (1). The axis with the reference axis 11 preferably extends through a filter element (4). According to the invention, it is particularly preferred if the axis (11) extends substantially parallel to the front and rear filter sides (8, 9) of the filter elements (4) or is defined by these filter sides (8, 9).

[0030] The filter elements (4)—possibly together with other components of the dust removal device (1)—form a dust chamber (7), which is sealed off by the filter elements (4).

[0031] A motor-turbine unit (5) is arranged in an upper region of the suction head (2), wherein the first filter sides (8) of the filter elements (4) of the motor-turbine unit (5) are arranged facing one another. An inlet duct-suction hose connection (6) is arranged in a lower region of the suction head (2).

LIST OF REFERENCE CHARACTERS

[0032] 1 Dust removal device [0033] 2 Suction head [0034] 3 Collecting container [0035] 4 Filter element [0036] 5 Motor-turbine unit [0037] 6 Inlet duct-suction hose connection [0038] 7 Dust chamber [0039] 8 First filter side [0040] 9 Second filter side [0041] 10 Central axis [0042] 11 Axis passing through a filter element [0043] 12 Slope angle alpha