Arrangement for a hand-held power tool, and hand-held power tool

Abstract

An assembly includes a side handle for a hand-held power tool and includes an eyelet device which includes an eyelet portion which is configured to be connected to a safety belt, wherein the side handle includes a clamping ring which is configured to attach the side handle to a round portion of the hand-held power tool, and wherein the eyelet device is configured to be attached to the clamping ring.

Claims

1. An assembly comprising: a side handle for a hand-held power tool; and an eyelet device including an eyelet portion configured to be connected to a safety belt, the side handle including a clamping ring configured to attach the side handle to a round portion of the hand-held power tool, and the eyelet device configured to be attached to the clamping ring; wherein the eyelet device includes a further fastening portion through which the clamping ring is led when the eyelet device is attached to the clamping ring.

2. The assembly as recited in claim 1 wherein the eyelet device includes a fastening portion configured to be arranged at least partially between the round portion of the hand-held power tool and the clamping ring when the eyelet device is attached to the clamping ring and the side handle is attached to the round portion of the hand-held power tool.

3. The assembly as recited in claim 2 wherein the clamping ring is led through the fastening portion when the eyelet device is attached to the clamping ring.

4. The assembly as recited in claim 2 wherein the fastening portion at least partially surrounds the clamping ring when the eyelet device is attached to the clamping ring.

5. The assembly as recited in claim 1 wherein the fastening portion and the further fastening portion are connected to one another via the eyelet portion.

6. The assembly as recited in claim 5 wherein the eyelet portion includes a connecting web connecting the fastening portion and the further fastening portion.

7. The assembly as recited in claim 6 wherein the eyelet portion includes a further connecting web arranged parallel to the connecting web and connecting the fastening portion and the further fastening portion.

8. The assembly as recited in claim 7 wherein the connecting web and the further connecting web are arranged axially or radially adjacent to one another.

9. The assembly as recited in claim 1 wherein the eyelet device is attachable so as to be movable along a circumference of the clamping ring.

10. The assembly as recited in claim 1 wherein the eyelet portion is arranged radially outside the clamping ring when the eyelet device is attached to the clamping ring.

11. The assembly as recited in claim 1 wherein the eyelet portion is arranged axially adjacent to the clamping ring when the eyelet device is attached to the clamping ring.

12. The assembly as recited in claim 1 wherein the eyelet device includes a first half and a second half connectable to one another in an axial direction, wherein, in a connected state of the first and second halves, each of the first and second halves partially surrounds the clamping ring when the eyelet device is attached to the clamping ring.

13. A hand-held power tool comprising the assembly as recited in claim 1.

14. The hand-held power tool as recited in claim 13 comprising the round portion, the round portion being at least partially surrounded by the clamping ring for the attachment of the side handle to the round portion, and comprising a main handle arranged behind the side handle.

15. An assembly comprising: a side handle for a hand-held power tool; a safety belt; and an eyelet device including an eyelet portion connected to the safety belt, the side handle including a clamping ring configured to attach the side handle to a round portion of the hand-held power tool, and the eyelet device configured to be attached to the clamping ring, the eyelet device including a fastening portion configured to be arranged at least partially between the round portion of the hand-held power tool and the clamping ring when the eyelet device is attached to the clamping ring and the side handle is attached to the round portion of the hand-held power tool.

16. The assembly as recited in claim 15 wherein the clamping ring is led through the fastening portion when the eyelet device is attached to the clamping ring.

17. The assembly as recited in claim 15 wherein the fastening portion at least partially surrounds the clamping ring when the eyelet device is attached to the clamping ring.

18. The assembly as recited in claim 17 wherein the fastening portion and the further fastening portion are connected to one another via the eyelet portion.

19. The assembly as recited in claim 18 wherein the eyelet portion includes a connecting web connecting the fastening portion and the further fastening portion.

Description

BRIEF DESCRIPTION OF THE FIGURES

(1) The following description explains the invention with reference to exemplary embodiments and figures. In the figures:

(2) FIG. 1 shows a schematic side view of a hand-held power tool;

(3) FIG. 2 shows a schematic front view of the hand-held power tool as per FIG. 1;

(4) FIG. 3 shows a schematic perspective view of a first embodiment of an eyelet device of the hand-held power tool as per FIG. 1;

(5) FIG. 4 shows a schematic perspective view of a further embodiment of the eyelet device of the hand-held power tool as per FIG. 1;

(6) FIG. 5 shows a schematic perspective view of a further embodiment of the eyelet device of the hand-held power tool as per FIG. 1;

(7) FIG. 6 shows a schematic perspective view of a further embodiment of the eyelet device of the hand-held power tool as per FIG. 1; and

(8) FIG. 7 shows a cross section through the eyelet device in the plane A-A.

(9) Identical or functionally identical elements are indicated by the same reference symbols in the figures, unless stated otherwise.

DETAILED DESCRIPTION

(10) FIG. 1 shows a schematic side view of a hand-held power tool 1. The hand-held power tool 1 is, for example, a hammer drill, a chisel hammer, a core drill, a saw, a grinding machine, a screwdriver, a bolt driver or a saw. The hand-held power tool 1 comprises a housing 2, to which, for example, a battery 3 is fastened. Alternatively, it is also possible for an electrical cable to be fastened to the housing 2, which electrical cable is connectable to a power socket (not illustrated). The housing 2 furthermore comprises a main handle 4, which is arranged at the rear. A tool fitting 5 for the fastening of a tool is also provided. Here, the tool fitting 5 is provided at the front on the hand-held power tool 1. The tool fitting 5 is for example a drill chuck for a drill or screwdriver. A cut-off disk, grinding disk, saw blade etc. can be fastened to other tool fittings. Furthermore, the hand-held power tool 1 comprises a cylindrical round portion 6 (indicated by dashed lines) which is arranged between the main handle 4 and the tool fitting 5. The round portion 6 is for example cylindrical.

(11) Furthermore, an assembly 7 with a side handle 8 for the hand-held power tool 1 and with an eyelet device 9 is provided. The eyelet device 9 comprises an eyelet portion which is configured to be connected to a safety belt 11. Preferably, the safety belt 11 comprises a fastening element 12, in particular a snap hook, which is configured to be detachably connected to the eyelet portion 10. For this purpose, the eyelet portion 10 is formed for example as a closed ring element. The fastening element 12 can thus be securely hooked into the eyelet portion 10.

(12) For example, the safety belt 11 comprises a further fastening element 13, in particular a snap hook, which is configured to be fastened to a support structure 14 or a person, in particular an operator (not illustrated). By means of the assembly 7 and by means of the safety belt 11, it is possible to prevent the hand-held power tool 1 from falling from a building or a scaffold and causing bodily harm. For example, the fastening element 12 is hooked into or mounted on the eyelet portion 10 in order to form a form-fitting connection between the eyelet portion 10 and the fastening element 12.

(13) FIG. 1 shows the side handle 8 and the eyelet device 9 in a connected state. The side handle 8 comprises a clamping ring 15 which is configured to attach the side handle 8 to the round portion 6 of the hand-held power tool 1. The clamping ring 15 comprises, for example, an annular clamping strap. The round portion 6 serves for example as a seat for the side handle 8. Furthermore, the eyelet device 9 is configured to be attached to the clamping ring 15. A radial direction R extends radially with respect to the ring element 15. An axial direction A extends perpendicularly with respect to the radial direction R. Here, the axial direction A points from the main handle 4 to the tool fitting 5, and thus from rear to front. In particular, the eyelet portion 10 is arranged radially outside the clamping ring 15. For example, the hand-held power tool 1 may comprise the assembly 7.

(14) FIG. 2 shows the hand-held power tool 1 in a schematic front view. Here, the eyelet device 9 comprises a fastening portion 16 which is configured to be arranged at least partially between the round portion 6 of the hand-held power tool 1 and the clamping ring 15. Furthermore, the eyelet device 9 may comprise a further fastening portion 17 which is configured to be arranged at least partially between the round portion 6 and the clamping ring 15. The fastening portion 16 and the further fastening portion 17 are arranged spaced apart in a circumferential direction U which points perpendicular to the radial direction R and which runs along a circumference 18 of the clamping ring 15. In particular, the fastening portion 16 and the further fastening portion 17 are of identical design.

(15) The fastening portion 16 and/or the further fastening portion 17 in this case engage into an intermediate space 19 between the clamping ring 15 and the round portion 6. In particular, the first fastening portion 16 and/or the further fastening portion 17 is clamped between the round portion 6 and the clamping ring 15. The fastening portion 16 and the further fastening portion 17 are connected to one another by means of the eyelet portion 10. Preferably, the eyelet device 9 is provided so as to be movable along the circumference 18 of the clamping ring 15. Here, the operator (not illustrated) can manually adjust the position of the eyelet device 9 relative to the hand-held power tool 2 and/or relative to the side handle 8. The eyelet device 9 is preferably fixable in this position. The clamping ring 15 is preferably at least partially or entirely of circular-ring-shaped form.

(16) The side handle 8 may also be provided so as to be movable relative to the housing 2. For this purpose, the round portion 6 is at least partially surrounded by the clamping ring 15. Preferably, the eyelet device 9 is fixed by means of an increase of a clamping force in the radial direction R of the clamping ring 15. This may for example be performed together with an arresting of the side handle 8 relative to the housing 2. For such arresting, the hand-held power tool 1 may for example comprise an arresting means. The arresting means is composed for example of the clamping strap, the length of which is lengthened and shortened by rotation of the handle region about its longitudinal axis. Furthermore, the eyelet portion 10 surrounds a passage opening 20 into which the fastening element 12 (see FIG. 1) engages. A part of the fastening element 12 thus extends through the passage opening 20, such that a form-fitting connection is formed between the fastening element 12 and the eyelet device 9 (see FIG. 1).

(17) FIG. 3 shows the eyelet device 9 in a schematic perspective view. Here, the clamping ring 15 (see FIG. 1) is not illustrated. For simplification, the circumferential direction U, the radial direction R and the axial direction A of the clamping ring 15 are nevertheless referenced. The clamping ring 15 (see FIG. 1) is led through the fastening portion 16. The fastening portion 16 comprises a receptacle region 21 through which the clamping ring 15 can be led. The fastening portion 16 has an underside 22 which is curved and which is thus adapted to an outer surface 23 of the round portion 6 (see FIG. 2).

(18) The receptacle region 21, too, is for example of curved form and thus adapted to a round form of the clamping ring 15. Preferably, the receptacle region 21 is at least partially formed as a negative form of the clamping ring 15. The fastening portion 16 at least partially surrounds the clamping ring 15 when the eyelet device 9 is attached to the clamping ring 15. The clamping ring 15 (see FIG. 2) is also led through the further fastening portion 17 when the eyelet device 9 is attached to the clamping ring 15.

(19) For this purpose, the further fastening portion 17 also comprises a receptacle region 24. The receptacle region 24 and the receptacle region 21 are preferably of identical form. As viewed in cross section, the fastening portion 16 is of C-shaped form. Here, such a cross section runs through the axial direction A and the radial direction R. The fastening portion 16 makes contact in particular at least partially with an outer surface 28, an inner surface 31 and two face surfaces 132, 133 of the clamping ring 15. In particular, the fastening portion 16 surrounds the clamping ring 15 in at least C-shaped or at least U-shaped fashion.

(20) Preferably, the fastening portion 16 and the further fastening portion 17 are of identical form. Furthermore, the eyelet portion 10 comprises a connecting web 25 which connects the fastening portion 16 and the further fastening portion 17. Here, the connecting web 25 is of arcuate, U-shaped, V-shaped or similar form. The fastening portion 16, the further fastening portion 17 and the connecting web 25 are preferably of integral form. In particular, only one connecting web 25 is provided in order to connect the fastening portion 16 to the fastening portion 17 (not illustrated).

(21) For example, the eyelet portion 10 comprises a further connecting web 26 which is arranged parallel to the connecting web 25 and which connects the fastening portion 16 and the further fastening portion 17 to one another. Here, the connecting web 25 and the further connecting web 26 are arranged adjacent to one another with respect to the axial direction A. A gap 27 is therefore formed between the connecting web 25 and the further connecting web 26. The fastening portion 16, the further fastening portion 17, the connecting web 25 and the further connecting web 26 are preferably of materially integral form.

(22) The connecting web 25 and the further connecting web 26 are for example of identical form. The passage opening 20 is defined by both connecting webs 25, 26. In particular, the passage opening 20 is open counter to the radial direction R, and thus downwardly, when the eyelet device 9 is not attached to the clamping ring 15 (see FIG. 2). Here, the passage opening 20 is delimited by the outer surface 28 of the clamping ring 15 (see FIG. 2) when the eyelet device 9 is attached to the clamping ring 15 (see FIG. 2). In particular, only the connecting web 25 and the further connecting web 26 are provided in order to connect the fastening portion 16 to the fastening portion 17 (not illustrated).

(23) For example, in a first step, the eyelet device 9 is attached to the clamping ring 15. For this purpose, the clamping ring 15 is optionally opened (not illustrated) and led through the receptacle regions 21, 24. Alternatively, the eyelet device 9 may be elastically deformed, such that the clamping ring 15 can pass through the gap 27 into the receptacle regions 21, 24. Preferably, during the elastic deformation, the connecting web and the further connecting web 26 are moved away from one another. In a second and subsequent step, the side handle 8 together with eyelet device 9 is attached to the round portion 6 of the hand-held power tool 1.

(24) FIG. 4 shows a further embodiment of the eyelet device 9 in a schematic perspective view. By contrast to FIG. 3, the eyelet device 9 comprises a first half 29 and a second half 30, which are connectable to one another in an axial direction A. In the connected state of the first and second halves 29, 30, each half 29, 30 partially surrounds the clamping ring 15 (see FIG. 2) when the eyelet device 9 is attached to the clamping ring 15. Preferably, the first half 29 and the second half 30 are connectable by means of a releasable connection (not illustrated). For example, the releasable connection is a plug-type connection, in particular a clamping or snap-action connection. Alternatively, the first half 29 and the second half 30 are not connected to one another. For example, the first half 29 and the second half 30 are spaced apart from one another in the axial direction A when the eyelet device 9 is attached to the clamping ring 15.

(25) The first half 29 comprises the fastening portion 16, the further fastening portion 17, the connecting web 25 and the further connecting web 26. Furthermore, the connecting web 25 and the further connecting web 26 are arranged radially adjacent to one another. Here, the passage opening 20 is arranged between the connecting web 25 and the further connecting web 26. The fastening portion 16 has a U shape which surrounds the clamping ring 15 in a U-shaped manner.

(26) Preferably, the further fastening portion 17 is of identical form to the fastening portion 16. Furthermore, the second half 30 is for example of mirror-symmetrical form with respect to the first half 29. It is self-evident that the connecting means for fastening the first half 29 to the second half 30 are for example not included in such symmetry. Alternatively, it may be the case that the first half 29 is not fastened to the second half 30. In the fastened state of the eyelet device 9 to the clamping ring 15, it is for example the case that the first half 29 and the second half 30 are arranged axially adjacent to one another, in particular so as to be spaced apart, and in particular mirror-symmetrically. For example, the eyelet device 9 may, as shown in FIG. 4, be connected to the side handle 8 when the latter is already attached to the round portion 6.

(27) FIG. 5 shows a further embodiment of the eyelet device 9 in a schematic perspective view. By contrast to FIG. 3, the eyelet portion 10 is arranged axially adjacent to the clamping ring 15 (see FIG. 2) when the eyelet device 9 is attached to the clamping ring 15. The eyelet portion 10 can thus be attached closer to the main handle 4 (see FIG. 1). Alternatively, the eyelet portion 10 mayin the case of a reversed attachmentbe attached closer to the tool fitting 5 (see FIG. 1). Furthermore, the fastening portion 16 is shaped so as to extend below the clamping ring 15 in the axial direction A and so as to be bent in the manner of a hook around the clamping ring 15 (see FIG. 1).

(28) In this way, the fastening portion 16 can be easily hooked together with the clamping ring 15 (see FIG. 2) without, for example, the clamping ring 15 being led in a cumbersome manner through the fastening portion 16. For example, the eyelet device 9 may, as shown in FIG. 5, be connected to the side handle 8 when the latter is already attached to the round portion 6 (see FIG. 2). For example, the fastening portion 16 and/or the further fastening portion 17 is of hook-shaped, in particular J-shaped form. The connecting web 25 and further connecting web 26 are arranged radially spaced apart, wherein the passage opening 20 is provided between the connecting webs 25, 26.

(29) FIGS. 6 and 7 show a further embodiment of the eyelet device 9 in a schematic perspective view and a longitudinal section. The single-piece eyelet device 9 has an eyelet portion 10 and a fastening portion 16. The eyelet portion 10 comprises an opening which is in the shape of a closed ring and into which, for example, a snap hook can be engaged. The fastening portion 16 can engage around a portion of the clamping ring 15. The fastening portion has a pedestal surface 32 and a tongue 33, which are spaced apart from one another by a groove 34. The groove 34 is preferably of partially form-fitting design with respect to the clamping ring 15, for example with a cylindrical profile. The depth of the groove 34 may correspond to a width of the clamping ring 15 as measured along the axial axis A. The pedestal surface 32 is preferably cylindrical at least in certain portions in order to lie against the radial outer side of the clamping ring 15. The tongue 33 has a cylindrical side which faces toward the pedestal surface 32 and against which the radial inner side of the clamping ring 15 lies. The tongue 33 has a relatively small dimension along the axial axis A and is thus completely concealed by the pedestal surface 32. The fastening portion 16 may have radially projecting feet 35 which engage into corresponding depressions in a housing of the hand-held power tool.

LIST OF REFERENCE SIGNS

(30) 1. Hand-held power tool 2 Housing 3 Battery 4 Main handle 5 Tool fitting 6 Round portion 7 Assembly 8 Side handle 9 Eyelet device 10 Eyelet portion 11 Safety belt 12 Fastening element 13 Further fastening element 14 Support structure 15 Clamping ring 16 Fastening portion 17 Further fastening portion 18 Circumference 19 Intermediate space 20 Passage opening 21 Receptacle region 22 Underside 23 Outer surface 24 Receptacle region 25 Connecting web 26 Further connecting web 27 Gap 28 Outer surface 29 First half 30 Second half 31 Inner surface 32 Pedestal surface 33 Tongue 34 Groove 132 Face surface 133 Face surface A Axial direction R Radial direction U Circumferential direction