HAND-HELD MACHINE TOOL

Abstract

The invention relates to a handheld machine tool, in particular a surface-finishing machine that includes a machining head, a handle part, and a connection arrangement which connects the machining head to the handle part, a tube outlet for connecting a tube being formed on the connection arrangement or on the handle part, a tube-holding device for holding the tube being provided on the handle part so as to be spaced apart from the tube outlet.

Claims

1. Handheld machine tool, comprising a machining head, a handle part, and a connection arrangement which connects the machining head to the handle part, a tube outlet for connecting a tube being formed on the connection arrangement or on the handle part, wherein a tube-holding device for holding the tube is provided on the handle part so as to be spaced apart from the tube outlet.

2. Machine tool according to claim 1, characterized in that the tube-holding device is arranged on an end of the handle portion facing away from the connection arrangement.

3. Machine tool according to claim 1, wherein the tube-holding device is removable from the handle part.

4. Machine tool according to claim 1, wherein the tube-holding device can be connected to the handle part by means of a plug connection.

5. Machine tool according to claim 1, wherein the tube-holding device is rotatably mounted on the handle part.

6. Machine tool according to claim 1, wherein the tube-holding device is designed such that it surrounds or can surround the tube in a holding state.

7. Machine tool according to claim 1, wherein the tube-holding device has a base part on which a plug pin is formed, which plug pin can be inserted into an opening formed in the handle part.

8. Machine tool according to claim 1, wherein the tube-holding device has a holding part, a first end of which is fixed to the base part and the second end of which can be detachably connected to the base part.

9. Machine tool according to claim 8, wherein the first end of the holding part cannot be detached from the base part in a non-destructive manner.

10. Machine tool according to claim 8, wherein the holding part is designed as a bail which can be pivoted relative to the base part.

11. Machine tool according to claim 8, wherein the holding part is designed as a rubber band.

12. Machine tool according to claim 11, characterized in that the rubber band has one or more passages at the second end by means of which the rubber band can be detachably connected to a hook-shaped fastening portion formed on the base part.

13. Machine tool according to claim 1, wherein the handle part has a T-shaped handle portion in each of the narrow sides of which an opening for inserting the plug pin of the base part is formed.

14. Machine tool according to claim 1, wherein the handle part has a handle portion and an additional handle portion being connected to said handle portion at an end facing away from the connection arrangement.

15. Machine tool according to claim 14, wherein one or more openings for inserting the plug pin of the base part are formed in the additional handle portion.

16. Machine tool according to claim 14, wherein the additional handle portion is T-shaped and includes narrow sides, an opening for inserting the plug pin of the base part being formed on each of the narrow sides of the portion.

17. Tube-holding device for a handheld machine tool wherein the handheld machine tool comprises a machining head, a handle part, and a connection arrangement which connects the machining head to the handle part, a tube outlet for connecting a tube being formed on the connection arrangement or on the handle part, wherein a tube-holding device for holding the tube is provided on the handle part so as to be spaced apart from the tube outlet.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The invention is explained in more detail below with reference to the drawings, the same or functionally similar elements being provided with identical reference signs, but in some cases only once. In the drawings:

[0032] FIG. 1 shows an embodiment of the handheld machine tool with the tube connected in a perspective view from one side;

[0033] FIG. 2 shows the machine tool from FIG. 1 with the tube connected in a perspective view from below;

[0034] FIG. 3 shows the machine tool from FIG. 1 without a tube in a perspective view from the side;

[0035] FIG. 4 shows the handle portion and the tube-holding device of the machine tool from FIG. 1 in an enlarged perspective view (tube-holding device closed);

[0036] FIG. 5 shows the handle portion and the tube-holding device from FIG. 4 in a perspective view from above (tube-holding device closed);

[0037] FIG. 6 shows the tube-holding device of the handheld machine tool from FIG. 1 in a perspective view in isolation (tube-holding device open); and

[0038] FIG. 7 shows an embodiment of the handheld machine tool from FIG. 1 with two handle portions in a perspective view from one side.

DETAILED DESCRIPTION

[0039] FIG. 1 shows a handheld machine tool which is designated as a whole with the reference sign 10 (hereinafter referred to as “machine tool 10”). The machine tool 10 can be a surface-finishing machine 10 such as, for example, a long-neck sander.

[0040] The machine tool 10 has a machining head 12, a handle part 14, and a connection arrangement 16 which connects the machining head 12 to the handle part 14.

[0041] The connection arrangement 16 has a connection part 18 which is connected to the machining head 12 and can be coupled to the handle part 14. The connection part 18 can, for example, be designed as a tubular portion. Operating elements and/or display elements (not shown) can be arranged on the handle part 14.

[0042] A tube portion 20, one end of which is in fluid connection with a suction point (not shown) on the machining head 12, is arranged on the machining head 12. At the other end, the tube portion 20 is in fluid connection, specifically via a flow channel (not shown) formed in the connection part 18, with a tube outlet 22 which is formed on the handle part 14.

[0043] A tube 24 (suction tube 24) is connected to the tube outlet 22. The other end of the tube 24 can, for example, be connected to a vacuum cleaner (not shown), so that swarf can be sucked away from the suction point on the machining head 12. In addition, an electrical connection 26, to which a connection cable 28 can be connected to supply power to the machine tool 10, is provided on the handle part 14 (cf. FIG. 2). The other end of the connection cable 28 can be connected to a socket (not shown), for example.

[0044] A tube-holding device 32 for holding the tube 24 is provided on the handle part 14 so as to be spaced apart from the tube outlet 22 in the longitudinal direction 30. The connection cable 28 can optionally also be held in the tube-holding device 32 (cf. FIG. 2).

[0045] In the present embodiment, the tube-holding device 32 is arranged on a handle portion 34 of the handle part 14, specifically on an end 36 of the handle portion 34 facing away from the connection arrangement 16.

[0046] The tube-holding device 32 is designed to be removable from the handle part 14. The tube-holding device 32 can be reversibly detached from and fastened to the handle part 14, so that said device can be used for fastening or guiding the tube 24 as necessary.

[0047] The tube-holding device 32 is rotatably mounted on the handle part 14, specifically about an axis 38 (see FIG. 4). The axis 38 is oriented transversely to the longitudinal direction 30. The tube-holding device 32 is designed in such a way that, in a holding state (when the tube-holding device 32 is closed), it completely surrounds the tube 24 (see FIGS. 1 and 2). The tube-holding device 32 can be reversibly connected to the handle part 14 by means of a mechanical plug connection 40 (see FIG. 4).

[0048] The tube-holding device 32 has a base part 42 on which a plug pin 44 is formed, which plug pin can be inserted into a matching opening 46, 47, i.e. an opening which corresponds to the plug pin 44, formed in the handle part 14. If the tube 24 is inserted in the tube-holding device 32, the base part 42 surrounds the tube 24 in portions in relation to the circumferential direction of the tube 24.

[0049] The tube-holding device 32 also has a holding part 48, a first end 50 of which is fixed to the base part 42 and the second end 52 of which can be detachably connected to the base part 42 (see in particular FIG. 6).

[0050] Two fastening regions 54, 56 are formed on the base part 42. In the first fastening region 54, the first end 50 of the holding part 48 is fixed to the base part 42. In the second fastening region 56, the second end 52 of the holding part 48 can be detachably connected to the base part 42. The first fastening region 54 and the second fastening region 56 are arranged on opposite sides of the plug pin 44.

[0051] The first end 50 of the holding part 48 cannot be detached from the base part 42 in a non-destructive manner.

[0052] In embodiments that are not shown, the holding part 48 can be designed as a bail (not shown) that can be pivoted relative to the base part 42.

[0053] In the present embodiment, the holding part 48 is designed as a rubber band having two ends 50, 52. At the second end 52, the rubber band has one or more passages 58 which are closed laterally (only one passage 58 shown here).

[0054] Via the passage or passages 58, the rubber band can be connected to a hook-shaped fastening portion 60, which is arranged in the second fastening region 56 of the base part 42. The hook-shaped fastening portion 60 is designed as a hook portion that is radially outwardly open. Thus, the second end 52 of the holding part 48 or of the rubber band can be mounted on and detached from the hook portion 60.

[0055] A radially outwardly closed hook portion 62 is formed in the first fastening region 54 of the base part 42, to which hook portion the first end 50 of the holding part 48 or of the rubber band is fixed. The holding part 48 or the rubber band cannot be detached from the hook portion 62 in a non-destructive manner. This ensures that the holding part 48 or the rubber band always stays together (protection against loss).

[0056] The handle portion 34 of the handle part 14 is T-shaped (T-shaped handle portion 34). On each of the narrow sides 64, 66 (lateral ends of the horizontal line of the “T”), an opening 46, 47 for inserting the plug pin 44 of the base part 42 is formed. The base part 42 can optionally be inserted into the opening 46 or the opening 47 (assembly possible on both sides). As already explained above, the handle portion 34 is the portion of the handle part 14 which is designed to be gripped or surrounded by a user's hand.

[0057] FIG. 7 shows an embodiment of the machine tool 10 which largely corresponds to the embodiment described above. To avoid repetition, reference is therefore made to the above embodiments (the same or functionally similar elements are provided with identical reference signs).

[0058] The present machine tool 10 also comprises a handle part 14 which has a handle portion 34. An additional handle portion 70 adjoins this handle portion 34 at the end 36 facing away from the connection arrangement 16. The machine tool 10 thus has two handle portions 34, 70.

[0059] One or more openings 72 for inserting the plug pin 44 of the base part 42 are formed on the additional handle portion 70 (only one opening 72 is provided with a reference sign). The tube-holding device 32 can thus also be inserted into the additional handle portion 70.

[0060] The additional handle portion 70 is also T-shaped. The openings 72 are each formed on the narrow sides (no reference signs) of the T-shaped handle portion 70.