DEVICE AND SYSTEM FOR COVERING A CUTTING GAP THAT IS ABLE TO BE CREATED BY A POWER TOOL, AND METHOD FOR EXTRACTING DUST FROM A WORKING AREA OF A POWER TOOL

Abstract

A device for covering a cut gap which can be produced by a machine tool. The device can be connected to a dust suctioning device so that the dust produced while working with the machine tool can be removed from the working area of the machine tool using the dust suctioning tool. A second aspect of the invention relates to a system consisting of at least two proposed devices. Another aspect of the invention relates to a method for suctioning dust from a working region of a machine tool. The device includes sealing caps which can be connected to a dust suctioning device via suction connecting pieces. Furthermore, the sealing caps are used to seal the working area in which the working process of the machine tool is carried out.

Claims

1-11. (canceled)

12. A device for covering a cutting gap creatable by a power tool, the device comprising: a section covering the cutting gap in a working area of the power tool, the device including at least one connector for connecting a dust extractor.

13. The device as recited in claim 12 wherein the at least one connector is arranged at one end of the device.

14. The device as recited in claim 12 wherein the at least one connector includes two connectors, each of the two connectors arranged at an end of the device.

15. The device as recited in claim 12 wherein the at least one connector also presses the device onto a substrate to be worked on.

16. The device as recited in claim 12 wherein the at least one connector includes two connectors externally sealing the cutting gap at ends of the cutting gap.

17. The device as recited in claim 12 further comprising a prefabricated gap for receiving a tool of the power tool during a work process.

18. The device as recited in claim 17 further comprising brushes projecting into the prefabricated gap.

19. The device as recited in claim 17 wherein the device is configured in a telescopic manner.

20. The device as recited in claim 12 further comprising a gap for receiving a tool of the power tool, the gap being introduceable into the device during a work process.

21. A guide system comprising the device as recited in claim 12 and a guide rail for the power tool.

22. A method for operating the device as recited in claim 12 comprising: using the device during a dry application of the power tool.

23. A system made up of at least two devices each as recited in claim 12, the at least two devices capable of sliding one in the other.

24. A method for extracting dust from a working area of a power tool, the method comprising the following steps: a) providing the device as recited in claim 12; b) covering the working area with the device; c) connecting the device to the dust extractor; d) carrying out a work process with the power tool; and d) extracting dust arising during the work process with the dust extractor.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Further advantages will become apparent from the following description of the figures. The figures, the description and the claims contain numerous features in combination. A person skilled in the art will expediently also consider the features individually and combine them to form useful further combinations.

[0034] In the figures, identical and similar components are denoted by the same reference signs. In the figures:

[0035] FIG. 1 shows a side view of a preferred configuration of the device

[0036] FIG. 2 shows an oblique side view of a preferred configuration of the device

[0037] FIG. 3 shows an oblique side view of a preferred configuration of the device

[0038] FIG. 4 shows a plan view of a preferred configuration of the device

[0039] FIG. 5 shows a further side view of a preferred configuration of the device

DETAILED DESCRIPTION

[0040] FIG. 1 shows a preferred configuration of a device (1) according to the invention. By way of example, a cut is intended to be introduced into a substrate (9) with the power tool (2, symbolized by the blade guard of the tool), or two regions of the substrate (9) are intended to be separated from one another. The power tool (2) may be for example a saw, in particular a wall saw or a cut-off grinder. The tool (11, see, e.g., FIG. 5) of the power tool (2) may be for example a saw blade or a cut-off wheel, which may preferably be provided with diamond fragments or diamond grains, in order to improve the cutting action. As a result of the cutting or separation with the power tool (2), a cutting gap (3, see, e.g., FIG. 5) is created in the substrate (9), said cutting gap being able to define a working area (4) of the power tool (2) or to coincide therewith. The working area (4) of the power tool (2) is defined preferably by the area in which the tool (11) and the substrate (9) to be worked on are in contact with one another, and by the adjoining spatial areas that extend preferably in a “forward” spatial direction and a “rearward” spatial direction. The contact area between the tool (11) and substrate (9) is indicated in FIG. 1 by the marking in the device (1) in the middle of FIG. 1. According to the invention, it may be preferred that the working area (4) coincides with or corresponds to a length of the device (1).

[0041] The device (1) is designed to cover the cutting gap (3) such that advantageously a closed dust space arises. This dust space can likewise coincide with the working area (4) of the power tool (2). According to the invention, the device (1) can preferably also be referred to as a covering rail. At the ends (5, 6) of the covering rail (1), closing caps (7) are provided. These closing caps (7) may comprise connection means for connecting to a vacuuming device (8). In particular, it may have extraction nozzles. It may also be configured to press the covering rail (1) onto the substrate (9) to be worked on, in order in this way to seal the dust space in a particularly effective manner. Preferably, in particular a lower region of the closing caps (7) serves to hold down the device (1) while an upper region of the closing cap (7) may comprise an extraction nozzle for connecting to a vacuuming device (8).

[0042] According to the invention, it is preferred that the power tool (2) cuts through the substrate (9) or separates different regions of the substrate (9) from one another along the device (1). In this case, the power tool (2) preferably executes a linear or straight movement. The power tool (2) can be moved by a user for example starting from a first end (5) of the covering rail (1) in the direction of a second end (6) of the covering rail (1). This forward movement of the power tool (2) is indicated in FIG. 1 by the arrow in the right-hand half of the image. In this regard, the first end (5) of the device can preferably also be referred to as the rear end (5) of the covering rail (1), while the second end (6) of the device (1) can preferably also be referred to as the front end (6) of the covering rail (1).

[0043] The power tool (2) can be connected to a vacuuming device (8). For example, an extraction nozzle can be provided at the blade guard that protects the tool (11) of the power tool (2). Between this extraction nozzle of the power tool (2) and the vacuuming device (8), a suction hose may be arranged, through which the extracted dust is transported out of the closed dust space into a dust collecting tank in the vacuuming device (8). The suction hose is indicated in FIG. 1 by a curved connecting line between the power tool (2) and vacuuming device (8).

[0044] FIG. 2 shows an oblique side view of a preferred configuration of the proposed covering rail (1). The power tool (2), which introduces a cut or a gap into a substrate (9), can be seen in FIG. 2. A cutting gap (3, see, e.g., FIG. 5) is formed thereby. As a result of working with the power tool (2), dust is created, which partially remains in the cutting gap (3) but can also be thrown out of the gap (3). In the context of the present invention, the dust passes into a closed dust space, which is formed by the gap (3) and the covering rail (1). In particular, the covering rail (1) forms an upward boundary of the substantially closed dust space. At the sides, i.e. at the ends (5, 6) of the covering rail (1) there are closing caps (7), which are designed to seal the dust space in a “forward” spatial direction and in a “rearward” spatial direction. The closing caps (7) can each have an extraction nozzle, in order to be connected to a vacuuming device (8). This connection is illustrated solely schematically in FIG. 1, and the presence thereof is highly preferred according to the invention. Furthermore, a lower region of the closing caps (7) can act as a holding-down means and press the covering rail (1) onto the substrate (9) to be worked on. As a result, the dust-tightness of the closed dust space is further increased and advantageously prevents dust escaping from the dust space and being able to get into the airways of a user of the power tool (2).

[0045] The power tool (2), or the blade guard of the tool (11) of the power tool (2), can be connected to a vacuuming device (8) using a suction hose. The tool (11) of the power tool (2) penetrates through a working gap (10) into the substantially closed dust space. The gap (10) may be provided in a prefabricated manner in the covering rail (1). According to the invention, it may also be preferred that the gap (10) is introduced into the covering rail (1) only by the power tool (2) itself. In the case of a prefabricated gap (10), brushes (illustrated schematically as 101 in FIG. 5) may be provided in the gap (10) in order to minimize an exit area for the dust.

[0046] FIG. 3 shows a further oblique side view of a preferred configuration of the proposed covering rail (1). In particular, FIG. 3 shows the substrate (9) into which a cutting gap (3, see, e.g., FIG. 5) is intended to be introduced. To this end, the power tool (2) is moved along a guide rail such that the tool (11, see, e.g., FIG. 5) of the power tool (2) can penetrate into the substrate (9) to be worked on and create the cutting gap (3). According to the invention, it is particularly preferred that the tool (11) of the power tool (2) penetrates through the gap (10) in the device (1) into the preferably closed dust space or into the substrate (9) to be worked on. In the preferred embodiment of the invention that is illustrated in FIG. 3, the closing caps (7) of the device (1) are arranged at the ends of the covering rail (1).

[0047] FIG. 4 shows a plan view of a preferred configuration of the device (1). In particular the power tool (2), which can move along a guide rail over the substrate (9) to be worked on, is illustrated. The power tool (2) is designed to set the tool (11), which may particularly preferably be a wall saw, into rotational movement in order to work on a substrate (9). In the exemplary embodiment of the invention that is illustrated in FIG. 4, the covering rail (1) has two closing caps (7), which are arranged at the front end (6) and the rear end (5) of the device (1). The extraction nozzles, which may each be provided on the closing caps (7) in order to establish a connection to a vacuuming device (8), are not illustrated. The device (1) has a gap (10) in which the tool (11) of the power tool (2) can rotate in order the cutting gap (3, see, e.g., FIG. 5) for severing the substrate (9) to be worked on can be created.

[0048] FIG. 5 shows a preferred exemplary embodiment of the proposed covering rail (1) in side view, in which two rails 1, 110 are shown solely schematically slidable with respect to each other for example in a telescopic manner. In particular, FIG. 5 shows a rear-side cover (12), which can be used to cover an underside or a rear side of the substrate (9) to be worked on. This is particularly advantageous when a component is intended to be cut to size with the power tool (2), which may be for example a saw, such that the object to be worked on is cut substantially all the way through. The rear-side cover (12) may be for example a U-profile or a film.

LIST OF REFERENCE SIGNS

[0049] 1 Device

[0050] 2 Power tool

[0051] 3 Cutting gap

[0052] 4 Working area

[0053] 5 First end of the device

[0054] 6 Second end of the device

[0055] 7 Connection means

[0056] 8 Vacuuming device

[0057] 9 Substrate

[0058] 10 Gap

[0059] 11 Tool of the power tool

[0060] 12 Rear-side cover