Abstract
A protective hood adapter device for mounting on a machine tool, in particular a hand-held machine tool, is disclosed. The protective hood adapter device includes at least one attachment part for attaching to a protective hood of the machine tool. The protective hood adapter device further includes at least one fastening part which is mounted on the attachment part so as to be movable in at least one movement plane. The fastening part is provided to clamp the attachment part on the protective hood by way of a force oriented at least substantially perpendicularly to the movement plane.
Claims
1. A protective hood adapter device for assembly on a machine tool, comprising: at least one attachment part for attaching configured to attach to a protective hood of the machine tool; and at least one fastening part which is mounted on the at least one attachment part so as to be movable in at least one movement plane, wherein the at least one fastening part is configured to brace the at least one attachment part on the protective hood by way of a force that is oriented so as to be at least substantially perpendicular to the at least one movement plane.
2. The protective hood adapter device as claimed in claim 1, wherein the at least one fastening part is mounted on the at least one attachment part so as to be rotatable or pivotable about a pivot axis that is in particular oriented so as to be at least substantially perpendicular to the at least one movement plane.
3. The protective hood adapter device as claimed in claim 1, wherein the at least one fastening part comprises at least two bracing faces which are disposed on two mutually facing internal sides of the at least one fastening part.
4. The protective hood adapter device as claimed in claim 1, further comprising at least one latching element which, for fixing the at least one fastening part to the at least one attachment part, proceeds from the at least one fastening part or the at least one attachment part, extends in a direction that is oriented so as to be at least substantially perpendicular to the at least one movement plane.
5. The protective hood adapter device as claimed in claim 2, further comprising at least one guide unit which is disposed so as to be spaced apart from the pivot axis and is configured to guide the at least one fastening part on the at least one attachment part in a movement relative to the at least one attachment part.
6. The protective hood adapter device as claimed in claim 1, wherein the at least one fastening part and/or the at least one attachment part has at least one retaining element which, by way of a retaining force, is configured to retain the at least one fastening part in precisely one non-braced position relative to the at least one attachment part.
7. The protective hood adapter device as claimed in claim 2, further comprising at least one delimiting unit which is configured to delimit a mutual relative movement of the at least one attachment part and of the at least one fastening part about the pivot axis to a maximum angle of at most 60°.
8. The protective hood adapter device as claimed in claim 1, wherein: the at least one attachment part has at least one attachment face configured to attach to the protective hood, and a maximum spacing of the at least one attachment face oriented so as to be at least substantially perpendicular to the at least one movement plane from an external face of the at least one attachment part and/or of the at least one fastening part oriented so as to be at least substantially parallel to the at least one movement plane is at most 7 mm.
9. The protective hood adapter device as claimed in claim 1, wherein: the at least one attachment part has at least one external contour which, when viewed at least substantially perpendicularly to the at least one movement plane, is configured so as to be arcuate about an imaginary center, and the at least one attachment part, when viewed at least substantially perpendicularly to the at least one movement plane, is disposed so as to be spaced apart from the center.
10. The protective hood adapter device as claimed in claim 1, wherein: the at least one attachment part has (i) at least one attachment face configured to attach to the protective hood, and (ii) at least one receptacle clearance for protecting configured to protect the at least one fastening part during operation of the machine tool, and the receptacle clearance is disposed on an external side of the at least one attachment part that faces away from the at least one attachment face.
11. The protective hood adapter device as claimed in claim 1, wherein the at least the attachment part is at least largely configured from a metal.
12. A machine tool system, comprising at least one machine tool which has at least one protective hood, and at least one protective hood adapter device as claimed in claim 1.
13. The protective hood adapter device as claimed in claim 1, wherein the machine tool is a hand-held machine tool.
14. The protective hood adapter device as claimed in claim 1, wherein the at least the attachment part is substantially completely configured from a metal.
Description
DRAWINGS
[0022] Further advantages are derived from the following description of the drawings. An exemplary embodiment of the invention is illustrated in the drawings. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently consider the features also individually and combine said features so as to form expedient further combinations.
[0023] In the drawings:
[0024] FIG. 1 shows a perspective view of a machine tool system according to the invention having a protective hood adapter device according to the invention in an assembled state;
[0025] FIG. 2 shows a perspective view of the machine tool system according to the invention having the protective hood adapter device according to the invention in a disassembled state;
[0026] FIG. 3 shows a plan view of the protective hood adapter device according to the invention;
[0027] FIG. 4 shows a plan view of the machine tool system according to the invention in a region of the protective hood adapter device according to the invention in the assembled state;
[0028] FIG. 5 shows a plan view of the machine tool system according to the invention in the region of the protective hood adapter device according to the invention, having a fastening part of the protective hood adapter device in a non-braced position;
[0029] FIG. 6 shows a lateral view of the machine tool system according to the invention in a region of the protective hood adapter device according to the invention; and
[0030] FIG. 7 shows a lateral sectional view of the machine tool system according to the invention in a connection region of the protective hood adapter device according to the invention having a protective hood of a machine tool of the machine tool system.
DESCRIPTION OF THE EXEMPLARY EMBODIMENT
[0031] Shown in FIG. 1 is a machine tool system 10 which comprises a machine tool 12 and a protective hood adapter device 14. The machine tool 12 is configured as a hand-held machine tool. The machine tool 12 is configured as an angle grinder. However, other design embodiments of the machine tool system 10 and/or of the machine tool 12 are also conceivable. The machine tool 12 comprises a protective hood 16 which is at least partially disposed about a tool receptacle 18 of the machine tool 12. The machine tool 12 comprises a rotation axis 20 about which a tool 22 is able to be driven by way of the tool receptacle 18 of the machine tool 12. The tool 22 in the exemplary embodiment shown is configured as a grinding and cutting disk. However, other design embodiments of the tool 22 are also conceivable. The protective hood 16 is fastened to the tool receptacle 18 and, when viewed along the rotation axis 20, at least partially encloses the tool receptacle 18 and the tool 22. The protective hood 16 has a peripheral region 24 which extends so as to be at least substantially parallel to the rotation axis 20. The protective hood 16, in particular the peripheral region 24, when viewed at least substantially perpendicularly to the rotation axis 20, extends across an entire height of the tool 22 and of the tool receptacle 18, said height being oriented so as to be in particular at least substantially parallel to the rotation axis 20.
[0032] The protective hood adapter device 14 is provided for assembling on the machine tool 12. The protective hood adapter device 14 in FIG. 1 is shown in a state assembled on the machine tool 12, in particular the protective hood 16. The protective hood adapter device 14 is provided for being fastened to the machine tool 12, in particular the protective hood 16. The protective hood adapter device 14 comprises an attachment part 26 for attaching to a protective hood 16 of the machine tool 12, and a fastening part 28 which is mounted on the attachment part 26 so as to be movable in at least one movement plane 30. The fastening part 28, by way of a force oriented so as to be at least substantially perpendicular to the movement plane 30, is provided for bracing the attachment part 26 on the protective hood 16. The fastening part 28, in particular in the assembled state, at least partially encloses the attachment part 26 in a peripheral region 32 of the attachment part 26. The fastening part 28 is provided for impinging the attachment part 26 with at least one force that is oriented so as to be at least substantially perpendicular to the movement plane 30 and in particular faces the protective hood 16. The fastening part 28, for bracing the attachment part 26 with the protective hood 16, is provided to be at least partially pushed onto the protective hood 16, wherein the fastening part 28 in particular at least partially encompasses the attachment part 26. The fastening part 28, when viewed along the movement plane 30, conjointly with the attachment part 26, is provided for at least partially enclosing the protective hood 16. The fastening part 28 in a braced state, wherein the attachment part 26 is in particular braced with the protective hood 16 by means of the fastening part 28, bears at least partially, in particular in a planar manner, on the attachment part 26.
[0033] The protective hood 16 of the machine tool 12 is configured as a protective grinding hood, in particular as a protective grinding hood of the type B according to standard EN 62841-2-3. The protective hood adapter device 14, by assembling on the protective hood 16 configured as a protective grinding hood conjointly with the protective hood 16 is provided to form a protective grinding disk hood, in particular a protective grinding disk hood of the type C according to standard EN 62841-2-3. The protective hood adapter device 14, in a cutting procedure of the machine tool 12, is provided for protecting a user from sparks and/or from severed projectiles. The fastening part 28 has an activation element 34 which is provided to be activated by a user in order for the fastening part 28 and the attachment part 26 to be released from the protective hood 16. The activation element 34 is in particular provided for moving the fastening part 28 relative to the attachment part 26 from the braced state to a non-braced state (see also FIG. 2). The activation element 34 has an activation face 36 that is oriented so as to be at least substantially perpendicular to the movement plane 30. The activation element 34, by way of a force action by a user on the activation face 36, is provided for moving the fastening part 28 relative to the attachment part 26 within the movement plane 30. The activation face 36 is at least partially configured as a curved face which extends so as to be at least partially at least substantially perpendicular to the movement plane 30.
[0034] The protective hood 16 at least partially encloses the rotation axis 20 and/or the tool receptacle 18. The protective hood adapter device 14 in a state fastened to the machine tool 12, or to the protective hood 16, which is shown in particular in FIG. 1, is at least partially disposed about the rotation axis 20 and/or the tool receptacle 18, in particular when viewed in a plane, in particular the movement plane 30, that extends so as to be at least substantially perpendicular to the rotation axis 20. The movement plane 30 is disposed so as to be at least substantially perpendicular to the rotation axis 20. The attachment part 26 and the fastening part 28 have in each case at least one plane of primary extent 38, the latter being oriented so as to be at least substantially parallel to the movement plane 30 and at least substantially perpendicular to the rotation axis 20. The fastening part 28, by way of at least one bracing force, is provided for fastening the attachment part 26 and the protective hood 16 to one another, or pressing said attachment part 26 and said protective hood 16 against one another, wherein the bracing force is in particular oriented so as to be at least substantially perpendicular to the movement plane 30. The attachment part 26 is at least substantially completely configured from a metal. The fastening part 28 is at least substantially completely configured from a plastics material, in particular from a duroplastic material. However, other design embodiments of the attachment part 26 and/or of the fastening part 28 are also conceivable. For example, it is conceivable that the attachment part 26 comprises at least one damping element which is provided for damping noise generated when machining a workpiece by means of the tool 22, wherein the damping element is in particular configured from a material other than a metal. The damping element is in particular not shown in the figures. It is conceivable that the protective hood 16 is disposed so as to be adjustable on the machine tool 12, wherein the one position of the protective hood 16 about the rotation axis 20 can in particular be varied. The protective hood adapter device 14 in the assembled state is preferably movable conjointly with the protective hood 16. The protective hood adapter device 14, by means of the fastening part 28, is in particular provided to be fastened to the machine tool 12 only by way of the protective hood 16.
[0035] The machine tool system 10 in FIG. 2 is shown in a disassembled state, wherein the protective hood adapter device 14 is disposed so as to be spaced apart from the machine tool 12, in particular from the protective hood 16. The fastening part 28 is shown in a non-braced state. The fastening part 28 is mounted on the attachment part 26 so as to be rotatable or pivotable about a pivot axis 40 that is oriented so as to be at least substantially perpendicular to the movement plane 30. The pivot axis 40 is disposed on an end region 42 of the fastening part 28, said end region 42 from a plane 44, which is oriented so as to be at least substantially perpendicular to the movement plane 30 and comprises the pivot axis 40, extends in a direction that faces away from the plane 44, wherein at most 10%, preferably at most 8%, and particularly preferably at most 5%, of an entire volume, in particular mass volume, of the fastening part 28 is disposed on a side of the plane 44 that is predefined by the direction. The pivot axis 40 is disposed so as to be at least substantially parallel to the rotation axis 20. The pivot axis 40, when viewed along the rotation axis 20, is disposed so as to be spaced apart from the protective hood 16, or from the tool receptacle 18. The protective hood adapter device 14 comprises a bearing unit 46 for mounting the fastening part 28 so as to be movable on the attachment part 26. The bearing unit 46 has two bearing elements 48, 50 which are of a mutually corresponding configuration. One bearing element 48 of the two bearing elements 48, 50 is configured as a pin which is disposed on the attachment part 26 so as to be at least substantially perpendicular to the movement plane 30, or at least substantially parallel to the pivot axis 40 and/or to the rotation axis 20. Another bearing element 50 of the two bearing elements 48, 50 is configured as a round bearing clearance which is delimited by the fastening part 28. The fastening part 28, by way of the other bearing element 50 that is configured as a bearing clearance, is mounted on the attachment part 26 so as to be rotatable or pivotable about the pivot axis 40 on the bearing pin. The bearing element 48 in a region of the other bearing element 50 is connected in a form-fitting and/or materially integral manner, in particular press-fitted, to the fastening part 28. The bearing element 48 is rotatably mounted within a clearance 52 of the attachment part 26. The bearing element 48, in a movement of the fastening part 28 relative to the attachment part 26 about the pivot axis 40 within the clearance 52, is provided to be moved conjointly with the fastening part 28. The bearing element 48 from the attachment part 26 extends in two diverging directions, the latter being in particular oriented so as to be at least substantially perpendicular to the movement plane 30, and in both directions is connected to the fastening part 28. In particular, when viewed along the movement plane 30, the fastening part 28 encompasses the attachment part 26 in a region of the bearing unit 46, in particular of the bearing elements 48, 50. The bearing unit 46 is preferably provided for delimiting, or at least substantially preventing, a movement of the fastening part 28 relative to the attachment part 26 along the pivot axis 40. The activation element 34 is disposed on a side of the fastening part 28 that faces away from the bearing element 48, or from the end region 42 that delimits the bearing unit. The bearing element 48 is preferably configured from a plastics material, in particular a duroplastic material. However, other design embodiments of the bearing unit 46, in particular of the bearing elements 48, 50, are also conceivable.
[0036] The protective hood adapter device 14, in particular the attachment part 26, by way of an assembly direction 54 that is oriented so as to be at least substantially perpendicular to the movement plane 30, is provided for being attached to the machine tool 12, in particular the protective hood 16. Upon attaching the attachment part 26 to the protective hood 16, the fastening part 28, for bracing the attachment part 26 on the protective hood 16, is provided to be moved about the pivot axis 40 toward the attachment part 26, in a fastening direction 56 that is oriented so as to be at least substantially parallel to the movement plane 30.
[0037] The attachment part 26 has an external contour 57 which, when viewed at least substantially perpendicularly to the movement plane 30, is configured so as to be arcuate about an imaginary center 58, or a central axis 60 of the attachment part 26 (see FIG. 3), wherein the attachment part 26, when viewed at least substantially perpendicularly to the movement plane 30, is disposed so as to be spaced apart from the center 58, or from the central axis 60. The central axis 60 preferably runs through the imaginary center 58 and is oriented so as to be at least substantially parallel to the pivot axis 40 and/or to the rotation axis 20. The central axis 60 preferably comprises the rotation axis 20. The central axis 60 is oriented so as to be at least substantially perpendicular to the movement plane 30. The fastening part 28, in a state in which the attachment part 26 is braced with the protective hood 16, at least partially bears on the external contour 57 of the attachment part 26. The attachment part 26 comprises an external wall 62 which, when viewed at least substantially perpendicularly to the movement plane 30 and/or along the central axis 60 and/or the pivot axis 40, is configured in the shape of a circular segment. The external wall 62 extends so as to be at least substantially parallel to the movement plane 30. The external wall 62, in particular when viewed at least substantially perpendicularly to the movement plane 30 and/or along the central axis 60 and/or the pivot axis 40, is delimited by the external contour 57 of the attachment part 26.
[0038] The attachment part 26 is formed from a casing region 64, a transition region 66, two attachment elements 68, the external wall 62 and a clearance region 70. The casing region 64 comprises a wall 72 which is configured so as to be arcuate about the imaginary center 58, or the central axis 60. The wall 72 of the casing region 64 extends across an angular range 74 (see FIG. 3) of in particular at least 90°, preferably at least 120°, preferably at least 180°, and particularly preferably at least 180°, about the imaginary center 58, or the central axis 60. The wall 72 of the casing region 64 extends across an angular range 74 of in particular at most 220°, preferably at most 200°, and particularly preferably at most 180°, about the imaginary center 58, or the central axis 60. The wall 72 of the casing region 64 particularly preferably extends across an angular range 74 of at least substantially 180° about the imaginary center 58, or the central axis 60. The transition region 66 delimits the casing region 64 on an edge of the wall 72 of the casing region 64 that is oriented so as to be at least substantially perpendicular to the central axis 60 or the rotation axis 20 and/or at least substantially parallel to the movement plane 30, and is in particular disposed on a side of the casing region 64 that faces away from the machine tool 12, in particular the protective hood 16. The transition region 66 comprises a wall 76 which is curved by at least substantially 90° and in particular extends about the imaginary center 58, or the central axis 60, by an entire angular range 78 (see FIG. 3) within which the wall 72 of the casing region 64 is configured. The clearance region 70 delimits the transition region 66 and is in particular disposed so as to be spaced apart from the casing region 64. The clearance region 70 comprises a wall 80 which delimits a clearance 82, the latter being configured in particular so as to be at least substantially perpendicular to the movement plane 30. The clearance region 70, in particular the wall 80 of the clearance region 70, and/or the clearance 82, extend/extends across an angular range 84 (see FIG. 3) of in particular at least 60°, preferably at least 90°, preferably at least 110°, and particularly preferably at least 115°, about the imaginary center 58, or the central axis 60, in particular along a periphery of the transition region 66. The clearance region 70, in particular the wall 80 of the clearance region 70, and/or the clearance 82, extend/extends across an angular range 84 of in particular at most 180°, preferably at most 150°, and particularly preferably at most 120°, about the imaginary center 58, or the central axis 60, in particular along a periphery of the transition region 66. The clearance region 70, in particular the wall 80 of the clearance region 70 and/or the clearance 82 particularly preferably extend/extends across an angular range 84 of at least substantially 120° about the imaginary center 58 or the central axis 60. The two attachment elements 68 are configured as appendages and disposed on the wall 72 of the casing region 64. The two attachment elements 68 are in each case disposed on an edge 86 of the wall 72 of the casing region 64 that is configured so as to be at least substantially perpendicular to the movement plane 30, in particular—when viewed along a circumferential direction about the central axis 60 or the rotation axis 20—disposed on two ends of the wall 72 of the casing region 64. The two attachment elements 68, in particular when viewed at least substantially perpendicularly to the movement plane 30 (see FIG. 3), have a shape which is in particular curved by at least 60°, preferably at least 80°, and particularly preferably at least 90°. The two attachment elements 68, in a state in which the attachment part 26 is assembled on the protective hood 16, are provided to secure said attachment part 26 against a movement relative to the protective hood 16 about the rotation axis 20, or the central axis 60. The two attachment elements 68 are at least largely, in particular at least substantially completely, configured across an entire height of the wall 72 of the casing region 64, said height extending in particular at least substantially perpendicularly to the movement plane 30. The external wall 62 is disposed on the clearance region 70 in a direction that faces the imaginary center 58 or the central axis 60. The external wall 62 delimits the clearance region 70. The external wall 62 is preferably oriented so as to be at least substantially perpendicular to the wall 72 of the casing region 64. The external wall 62 is preferably configured so as to be in the shape of a circular segment toward the external contour 57 of the attachment part 26, or toward the wall 72 of the casing region 64. The external wall 62 comprises an edge 88 that delimits the attachment part 26 in the direction of the imaginary center 58, or of the central axis 60. The edge 88 of the external wall 62 is at least substantially parallel to an imaginary straight line through the edges 86 of the wall 72 of the casing region 64 that are configured so as to be at least substantially perpendicular to the movement plane 30, in particular those at two ends of the wall 72 of the casing region 64 that, when viewed, are configured along a circumferential direction about the central axis 60 or the rotation axis 20. The attachment part 26, in particular the wall 72 of the casing region 64, the wall 76 of the transition region 66, the two attachment elements 68, the external wall 62 and/or the wall 80 of the clearance region 70, have/has a maximum wall thickness 90 of in particular at least 0.5 mm, preferably at least 1 mm, preferably at least 1.5 mm, and particularly preferably at least 2 mm. The attachment part 26, in particular the wall 72 of the casing region 64, the wall 76 of the transition region 66, the two attachment elements 68, the external wall 62 and/or the wall 80 of the clearance region 70, have/has a maximum wall thickness 90 of in particular at most 5 mm, preferably at most 4 mm, and in particular preferably at most 3 mm. The casing region 64, when viewed from the rotation axis 20 and/or the central axis 60, is provided to be placed about the protective hood 16. The casing region 64 is in particular provided for securing the attachment part 26 on the protective hood against a movement at least substantially perpendicular to the rotation axis 20 and/or to the central axis 60. The clearance region 70 is provided for holding the fastening part 28 on the attachment part 26, in particular by bracing.
[0039] The fastening part 28 is formed from a bearing region 92, an activation region 94, two attachment regions 96, 97 and two bracing regions 98, 99. The fastening part 28, when viewed along the movement plane 30, at least largely encompasses the attachment part 26 within the bearing region 92 (see also FIG. 3). The pivot axis 40 runs through the bearing region 92. The bearing unit 46, in particular the other bearing element 50 configured as the bearing clearance, is at least partially disposed within the bearing region 92. The fastening part 28 is attached to the attachment part 26, in particular the casing region 64, by way of the two attachment regions 96, 97. One attachment region 96 of the two attachment regions 96, 97 delimits the bearing region 92, in particular when viewed along a circumferential direction about the central axis 60, or the rotation axis 20. The attachment region 96 comprises a wall 100 which, in an assembled state or in a braced state, is provided to be at least partially attached to the attachment part 26, in particular the wall 72 of the casing region 64, the wall 76 of the transition region 66, and a wall 102 of the protective hood 16. The wall 102 of the protective hood 16 to which the wall 100 of the attachment region 96 is attached is preferably disposed on a side of the protective hood 16 that faces away from the attachment part 26, in particular from the transition region 66. The attachment region 96, in particular the wall 100 of the attachment region 96, is configured about the central axis 60, or the imaginary center 58, across an angular range 104 (see FIG. 3) of in particular at least 30°, preferably at least 40°, and particularly preferably at least 50°. The attachment region 96, in particular the wall 100 of the attachment region 96, is configured about the central axis 60 or the rotation axis 20 across an angular range 104 of in particular at most 90°, preferably at most 70°, and particularly preferably at most 60°. The attachment region 96, in particular the wall 100 of the attachment region 96, is particularly preferably configured about the central axis 60 or the imaginary center 58 across an angular range 104 of at least substantially 47°. The two bracing regions 98, 99 on the attachment region 96 are disposed on a side of the attachment region 96 that faces away from the bearing region 92. The two bracing regions 98, 99 are disposed so as to be mutually spaced apart and connected to one another by way of the two attachment regions 96, 97. The two bracing regions 98, 99 comprise in each case one wall 106, 108, the latter being oriented so as to be at least substantially parallel to the movement plane 30. The two bracing regions 98, 99, in particular the walls 106, 108 of the two bracing regions 98, 99, are oriented or disposed so as to be at least substantially mutually parallel, wherein the attachment part 26 in a braced state is in particular disposed between the two bracing regions 98, 99, in particular the walls 106, 108 of the two bracing regions 98, 99. The two bracing regions 98, 99, in particular the walls 106, 108 of the bracing regions 98, 99, are provided for bracing the attachment part 26 in an assembled state or a braced state on the protective hood 16. One bracing region 98 of the two bracing regions 98, 99, in particular the wall 106 of the bracing region 98, is provided for being attached to the attachment part 26, in particular the external wall 62 or the clearance region 70. Another bracing region 99 of the two bracing regions 98, 99, in particular the wall 108 of the other bracing region 99, is provided for being attached to a wall 102, in particular the afore-mentioned wall 102, of the protective hood 16. In particular, the other bracing region 99 in FIG. 3 is obscured by the attachment part 26, or by the bracing region 98, and is not shown. The two bracing regions 98, 99, in particular the walls 106, 108 of the two bracing regions 98, 99, when viewed at least substantially perpendicularly to the movement plane 30 are disposed so as to be spaced apart from the external contour 57 of the attachment part 26, from the transition region 66, from the casing region 64 and/or from the clearance region 70 (see FIG. 3). The two bracing regions 98, 99, in particular the walls 106, 108 of the two bracing regions 98, 99, at least in a manner substantially parallel to the movement plane 30, have a maximum length 110 (see FIG. 3) of in particular at least 80 mm, preferably at least 100 mm, and particularly preferably at least 120 mm. The two bracing regions 98, 99, in particular the walls 106, 108 of the two bracing regions 98, 99, at least in a manner substantially parallel to the movement plane 30, have a maximum length 110 of in particular at most 300 mm, preferably at most 250 mm, and particularly preferably at most 200 mm. The two bracing regions 98, 99, in particular the walls 106, 108 of the two bracing regions 98, 99, at least in a manner substantially parallel to the movement plane 30, particularly preferably have a maximum length 110 of at least substantially 103 mm. The walls 106, 108 of the two bracing regions 98, 99, when viewed at least substantially perpendicularly to the movement plane 30, in a region of the external wall 62 of the attachment part 26 have an at least substantially rectangular basic shape. A further attachment region 97 of the two attachment regions 96, 97 is disposed on the two bracing regions 98, 99, in particular in each case on an end that faces away from the attachment region 96. The further attachment region 97 is disposed so as to be spaced apart from the attachment region 96 and is in particular connected to the attachment region 96 by way of the two bracing regions 98, 99. The further attachment region 97 comprises a wall 112 which, in an assembled state or a braced state, is provided to be at least partially attached to the attachment part 26, in particular the wall 72 of the casing region 64, the wall 76 of the transition region 66 and the wall 100 of the protective hood 16. The further attachment region 97, in particular the wall 112 of the further attachment region 97, is configured about the central axis 60 or the imaginary center 58 across a maximum angular range 114 (see FIG. 3) of in particular at least 10°, preferably at least 15°, and particularly preferably at least 20°. The further attachment region 97, in particular the wall 112 of the further attachment region 97, is configured about the central axis 60 or the rotation axis 20 across a maximum angular range 114 of in particular at most 90°, preferably at most 60°, and particularly preferably at most 30°. The further attachment region 97, in particular the wall 112 of the further attachment region 97, is particularly preferably configured about the central axis 60 or the imaginary center 58 across a maximum angular range 114 of at least substantially 18°. The activation region 94 is disposed on an end of the further attachment region 97, or of the fastening part 28, that faces away from the attachment region 96 and/or the bearing region 92. The activation region 94 preferably delimits the further attachment region 97 at one end of the fastening part 28 (see FIG. 3). The activation element 34 is disposed within the activation region 94. The activation region 94 is preferably formed by the activation element 34. The activation face 36 and/or an external face 188 of the activation element 34, in a transition from the other attachment region 97 to the activation region 94, relative to an external face 190 of the wall 112 of the other attachment region 97, have/has an angle 192 of at least substantially 135° (see FIG. 3). The fastening part 28, in particular the bearing region 92, the activation region 94, in particular the activation element 34, the walls 100, 112 of the two attachment regions 96, 97, and/or the walls 106, 108 of the two bracing regions 98, 99, have/has a maximum wall thickness 116 of in particular at least 0.5 mm, preferably at least 1 mm, preferably at least 1.5 mm, and particularly preferably at least 2 mm. The fastening part 28, in particular the bearing region 92, the activation region 94, in particular the activation element 34, the walls 100, 112 of the two attachment regions 96, 97, and/or the walls 106, 108 of the two bracing regions 98, 99, have/has a maximum wall thickness 116 of in particular at most 5 mm, preferably at most 4 mm, and in particular preferably at most 3 mm. The fastening part 28 is disposed on the attachment part 26 within the bearing region 92, in particular independently of a position of the fastening part 28 relative to the attachment part 26 about the pivot axis 40. The activation region 94 is provided for the user to engage with when moving the fastening part 28. The fastening part 28, in the state in which the attachment part 26 is braced, or in a state in which the latter is fastened to the protective hood, bears on the attachment part 26 by way of the attachment regions 96, 97. The fastening part 28 by way of the bracing regions 98, 99 braces the attachment part 26 with the protective hood 16 in a direction that is oriented so as to be at least substantially perpendicular to the movement plane 30.
[0040] The fastening part 28 comprises two bracing faces 118, 120 which are disposed on two mutually facing internal sides of the fastening part 28. The bracing faces 118, 120 are in each case disposed on an internal side of the walls 106, 108 of the two bracing regions 98, 99, said internal side facing in particular the movement plane 30 (see FIG. 7). Each of the walls 106, 108 of the two bracing regions 98, 99 comprises in each case one of the two bracing faces 118, 120. The two bracing faces 118, 120 are oriented so as to be at least substantially parallel to the movement plane 30. The two bracing faces 118, 120, in particular in a braced state, are in each case disposed on a side of the fastening part 28 that faces the attachment part 26. One bracing face 118 of the two bracing faces 118, 120, for fastening the protective hood adapter device 14, in particular the attachment part 26, is provided for being attached to the attachment part 26. Another bracing face 120 of the two bracing faces 118, 120, for fastening the protective hood adapter device 14, in particular the attachment part 26, is provided for being attached to the protective hood 16, in particular the wall 102 of the protective hood 16. The bracing face 118 is disposed on a side of the fastening part 28 that faces a motor or a main body of the machine tool 12. The other bracing face 120 is disposed on a side of the fastening part 28 that at least largely faces away from the motor or the main body of the machine tool 12.
[0041] The protective hood adapter device 14 is shown individually in a plan view, in particular so as to be at least substantially perpendicular to the movement plane 30, in FIG. 3. The fastening part 28, in particular in a state shown in FIG. 3, in a braced position, is disposed on the attachment part 26. The protective hood adapter device 14 comprises a guide unit 122 which is disposed so as to be spaced apart from the pivot axis 40 and, in a movement relative to the attachment part 26, is provided for guiding the fastening part 28 on the attachment part 26. The guide unit 122 comprises a guide element 124 which is configured so as to be integral with the attachment part 26. The guide unit 122 comprises a guide clearance 126 which is delimited by the fastening part 28. The guide unit 122 is configured as a guide slot. However, other design embodiments of the guide unit 122 are also conceivable. The guide element 124 is configured as an appendage which, from an external side of the attachment part 26 that faces away from the movement plane 30, extends in a direction that is oriented so as to be at least substantially perpendicular to the movement plane 30. The guide element 124 has a round cross-sectional area, the latter in particular being in the shape of a circular area. The guide clearance 126 is delimited by a guide face 128 of the fastening part 28. The guide face 128, when viewed at least substantially perpendicularly to the movement plane 30, has a contour which is configured so as to be at least substantially in the shape of a racecourse. The guide unit 122, in a movement along a guide section 130, is provided for guiding the fastening part 28 on the attachment part 26. The guide section 130 is oriented so as to be at least substantially parallel to the movement plane 30 and/or at least substantially perpendicular to the pivot axis 40. The guide section 130 is configured so as to be at least largely rectilinear. A minimum spacing 132 of the pivot axis 40 and the guide unit 122, in particular of the guide element 124 and/or the guide clearance 126, is in particular at least 20 mm, preferably at least 30 mm, preferably at least 40 mm, and particularly preferably at least 45 mm, wherein the minimum spacing 132 of the pivot axis 40 and the guide unit 122, in particular of the guide element 124 and/or the guide clearance 126, is in particular oriented so as to be at least substantially parallel to the movement plane 30 and/or at least substantially perpendicular to the pivot axis 40. The guide clearance 126 extends across an entire thickness of the fastening part 28, in particular from an internal side of the fastening part 28 that faces the attachment part 26 to an external side of the fastening part 28 that faces away from the attachment part 26. The guide element 124 is disposed within the guide clearance 126. The guide element 124 extends across an entire thickness of the guide clearance 126. In particular, the guide element 124, in particular an end of the guide element 124 that is oriented so as to be at least substantially parallel to the movement plane 30, is configured so as to be flush with an external side of the fastening part 28. The guide element 124, in at least one operating state, in particular in the state shown in FIG. 3 and in a non-braced state shown in FIG. 2, at least partially bears on the guide face 128 of the attachment part 26, or of the fastening part 28, that delimits the guide clearance 126. The guide section 130 is oriented so as to be at least substantially perpendicular to the central axis 60.
[0042] The fastening part 28 has a retaining element 134 which, by means of a retaining force, is provided for retaining the fastening part 28 in precisely one non-braced position relative to the attachment part 26. The retaining force is preferably at least partially oriented along the guide section 130 of the guide unit 122. The retaining element 134 is configured so as to be integral with the fastening part 28. The retaining element 134 is configured so as to be integral with the guide unit 122, in particular the guide clearance 126. The retaining element 134 is configured as an appendage within the guide clearance 126, said appendage being in particular formed by the guide face 128 of the fastening part 28. However, other design embodiments of the retaining element 134 are also conceivable, wherein the retaining element 134 is in particular disposed so as to be separate from the guide unit 122 or spaced apart therefrom. The retaining element 134, in a movement of the fastening part 28 out of the non-braced position (see FIG. 2), is provided for generating the retaining force by way of an interaction between the guide element 124 and the guide clearance 126. The guide element 124, in a movement of the fastening part 28 out of the non-braced position, is impinged with the retaining force by way of the retaining element 134. The retaining element 134 along the guide section 130 preferably configures a taper of the guide clearance 126.
[0043] The fastening part 28 has two markings 136, 137 which are disposed on the guide unit. The markings 136, 137 are configured as arrows so as to display a position of the fastening part 28 relative to the attachment part 26. The markings 136, 137 point in each case to a position of the guide element 124, configured integrally with the attachment part 26, within the guide clearance 126. However, other design embodiments of the markings 136, 137 are also conceivable, in particular having a shape other than that of an arrow. One marking 136 of the markings 136, 137 indicates a position of the fastening part 28 which is braced with the attachment part 26 and is shown in particular in FIG. 3, wherein the fastening part 28 is pushed onto the attachment part 26 in particular up to a detent, and wherein the guide element 124 bears in particular on one end of the guide clearance 126. Another marking 137 of the markings 136, 137 shows the fastening part 28 in the non-braced position (see FIG. 2 or FIG. 5), wherein the fastening part 28 is in particular impinged with the retaining force by way of the retaining element 134, and wherein the guide element 124 bears in particular on another end of the guide clearance 126. The fastening part 28 moreover comprises an external face 138 which is disposed on a side of the fastening part 28 that faces away from the machine tool 12.
[0044] The machine tool system 10 in FIG. 4 is shown in an assembled state, when viewed along the rotation axis 20 or the central axis 60. The protective hood adapter device 14, in particular the fastening part 28, is shown in a braced state. A minimum spacing 140 of the attachment part 26 from the imaginary center 58, or from the central axis 60, when viewed at least substantially perpendicular to the movement plane 30, is in particular more than 10 mm, preferably more than 20 mm, preferably more than 30 mm. The minimum spacing 140 of the attachment part 26 from the imaginary center 58, or from the central axis 60, is particularly preferably at least substantially 33 mm. The minimum spacing 140 of the attachment part 26 from the imaginary center 58, or from the central axis 60, is oriented so as to be at least substantially parallel to the movement plane 30. The minimum spacing 140 of the attachment part 26 from the imaginary center 58, or from the central axis 60, extends from the external wall 62, in particular a side of the external wall 62 that is oriented so as to be at least substantially perpendicular to the movement plane 30, in particular from the edge 88 of the external wall 62, to the imaginary center 58 or the central axis 60. A minimum spacing 142 of the transition region 66 of the attachment part 26, in particular of the wall 76 of the transition region 66, from the central axis 60, or from the rotation axis 20, is in particular at least 50 mm, preferably at least 60 mm, and in particular preferably at least 63 mm. The minimum spacing 142 of the transition region 66 of the attachment part 26, in particular of the wall 76 of the transition region 66, from the central axis 60, or from the rotation axis 20, is in particular at most 120 mm, preferably at most 100 mm, and particularly preferably at most 80 mm. The minimum spacing 142 of the transition region 66 of the attachment part 26, in particular of the wall 76 of the transition region 66, from the central axis 60, or from the rotation axis 20, particularly preferably is at least substantially 63.5 mm.
[0045] A maximum spacing 144 of the attachment part 26, in particular of the external contour 57 or of the wall 72 of the casing region 64, and of the imaginary center 58, or of the central axis 60, is in particular at least 50 mm, preferably at least 60 mm, and in particular preferably at least 70 mm. The maximum spacing 144 of the attachment part 26, in particular of the external contour 57 or of the wall 72 of the casing region 64, and of the imaginary center 58, or of the central axis 60, is particularly preferably at least substantially 72.5 mm. A maximum external diameter 146 of the attachment part 26, in particular of the external contour 57 or of the wall 72 of the casing region 64, is in particular at least substantially 145 mm.
[0046] The machine tool 12, in particular the tool 22, shown in the figures is configured having a grinding disk diameter 148 of 125 mm. However, other design embodiments of the machine tool 12, in particular of the tool 22, are also conceivable, in particular having a grinding disk diameter 148 other than 125 mm. The protective hood adapter device 14 shown in the figures is preferably provided for assembly on a machine tool 12 having a grinding disk diameter 148 of 125 mm. Other design embodiments of the protective hood adapter device 14 are also conceivable, in particular for assembly on a machine tool 12 having a grinding disk diameter 148 other than 125 mm.
[0047] The machine tool system 10 in FIG. 5 is shown in an assembled state, when viewed along the rotation axis 20 or the central axis 60. The protective hood adapter device 14, in particular the fastening part 28, is shown in a non-braced state. The fastening part 28 in the non-braced state, by means of the guide element 124 via the retaining element 134, is held in the precisely one non-braced position relative to the attachment part 26 by the retaining force. The protective hood adapter device 14 comprises a delimiting unit 150 which is provided for delimiting a movement of the attachment part 26 and of the fastening part 28 relative to one another about the pivot axis 40 to a maximum angle 152 of at most 60°, preferably at most 40°, preferably at most 30°, and particularly preferably at most 15°. The delimiting unit 150 is configured so as to be integral with the guide unit 122. The guide clearance 126, by way of interacting with the guide element 124, is provided for delimiting the movement of the attachment part 26 and of the fastening part 28 relative to one another about the pivot axis 40. The guide section 130 about the pivot axis 40 defines a maximum angular range 154 of in particular at most 60°, preferably at most 40°, preferably at most 30°, and particularly preferably at most 15°, and of in particular at least 7°, preferably at least 10°, and particularly preferably at least 14°. The guide section 130 about the pivot axis 40 particularly preferably defines a maximum angular range 154 of at least substantially 15°. The guide element 124 for delimiting the maximum angle 152 of the attachment part 26 and of the fastening part 28 relative to one another about the pivot axis 40 bears in a form-fitting manner on the guide face 128 of the fastening part 28 that delimits the guide clearance 126. The fastening part 28 is provided for bracing the attachment part 26 with the protective hood 16, or for fastening said attachment part 26 to the machine tool 12, in particular the protective hood 16 (see FIG. 4), at an angle of 0° relative to the attachment part 26. The fastening part 28, by means of the retaining element 134, is provided to be held in the precisely one non-braced position relative to the attachment part 26 at an angle 152 of at most 60°, preferably at most 40°, preferably at most 30°, and particularly preferably at most 15°, and most particularly preferably at least substantially 15°, relative to the attachment part 26. The angle 152 of the fastening part 28 in the non-braced state relative to a position of the fastening part 28 in the braced state, shown in particular in FIG. 4, is at least substantially 15°. However, other design embodiments of the delimiting unit 150 are also conceivable, in particular separate from the guide unit 122.
[0048] A lateral view of the machine tool system 10 in a region of the protective hood 16 and of the protective hood adapter device 14 is shown in FIG. 6. The fastening part 28, in particular the bracing regions 98, 99, when viewed along the movement plane 30, conjointly with the protective hood 16 at least partially encloses/enclose the attachment part 26. The attachment elements 68 encompass the protective hood 16 on ends of the protective hood 16, or of the attachment part 26, which, when viewed, are configured along a circumferential direction about the central axis 60 or the rotation axis 20.
[0049] The attachment part 26 has an attachment face 156 for attaching to the protective hood 16, in particular when bracing or fastening the attachment part 26 with or to the protective hood 16, wherein a maximum spacing 158 of the attachment face 156, oriented so as to be at least substantially perpendicular to the movement plane 30, and an external face 138, 160 of the attachment part 26 and/or of the fastening part 28, oriented so as to be at least substantially parallel to the movement plane 30, is at most 7 mm, preferably at most 6 mm, and particularly preferably at most 5 mm. In particular, the maximum spacing 158 of the attachment face 156, oriented so as to be at least substantially perpendicular to the movement plane 30, and of the external face 138, 160 of the attachment part 26 and/or of the fastening part 28, oriented so as to be at least substantially parallel to the movement plane 30, is at least 2 mm, preferably at least 3 mm, and particularly preferably at least 4 mm. The maximum spacing 158 of the attachment face 156, oriented so as to be at least substantially perpendicular to the movement plane 30, and the external face 138, 160 of the attachment part 26 and/or of the fastening part 28, oriented so as to be at least substantially parallel to the movement plane 30, is particularly preferably at least substantially 5 mm. The external face 160 of the attachment part 26 is disposed on the external wall 62 of the attachment part 26, in particular on a side of the attachment part 26 that faces away from the machine tool 12, in particular the tool 22 and/or the tool receptacle 18. The attachment face 156 of the attachment part 26 is oriented so as to be oblique to the movement plane 30, in particular at an angle 196 of at least substantially 30°. The attachment face 156 is disposed on the attachment part 26 on a side of the attachment part 26 that faces the machine tool 12, in particular the tool receptacle 18. The attachment face 156 is disposed on an internal side of the wall 76 of the transition region 66 and/or of the wall 80 of the clearance region 70 that faces the machine tool 12, in particular the tool receptacle 18, and is delimited in particular by the wall 80 of the clearance region 70. The attachment face 156 is provided for being attached to an end of the protective hood 16 that faces the attachment part 26 and is oriented so as to be at least substantially parallel to the rotation axis 20 or to the central axis 60. The maximum spacing 158 of the attachment face 156 and of the external face 138, 160 of the attachment part 26 and/or of the fastening part 28, oriented so as to be at least substantially parallel to the movement plane 30, is oriented so as to be at least substantially parallel to the pivot axis 40. The external face 138, 160 of the attachment part 26 and/or of the fastening part 28, conjointly with at least one face 162 of the fastening part 28 that faces the machine tool 12, defines a maximum height 164 of the protective hood adapter device 14, said height being in particular oriented so as to be at least substantially perpendicular to the movement plane 30 and/or at least substantially parallel to the pivot axis 40 and/or the rotation axis 20, and/or being disposed in particular on the other bracing region 99, in particular the wall 108 of the other bracing region 99. The maximum height 164 of the protective hood adapter device 14 is in particular at most 50 mm, preferably at most 45 mm, preferably at most 40 mm, and particularly preferably at most 35 mm. The maximum height 164 of the protective hood adapter device 14 particularly preferably is at least substantially 34 mm.
[0050] The external wall 62 of the attachment part 26 in an assembled state, or in a braced state, has a minimum spacing 168 from the tool 22 and/or a receptacle opening 166 of the tool receptacle 18, said minimum spacing 168 being in particular at least 5 mm, preferably at least 10 mm, and particularly preferably at least 15 mm. The minimum spacing 168 of the external wall 62 from the tool 22 and/or the receptacle opening 166 is in particular at most 30 mm, preferably at most 27 mm, and particularly preferably at most 25 mm. The minimum spacing 168 of the external wall 62 from the tool 22 and/or the receptacle opening 166 particularly preferably is at least substantially 20 mm. The minimum spacing 168 of the external wall 62 from the tool 22 and/or the receptacle opening 166 is oriented so as to be at least substantially perpendicular to the movement plane 30 and/or at least substantially parallel to the central axis 60 or to the rotation axis 20. The receptacle opening 166 is preferably provided for receiving the tool 22 on the rotation axis 20.
[0051] Shown in FIG. 7 is a lateral view of a section through the machine tool system 10 in a region of the protective hood 16 and of the protective hood adapter device 14 on one side of the central axis 60 (see FIG. 4). The protective hood adapter device 14 comprises a latching element 170 for fixing the fastening part 28 to the attachment part 26, said latching element from the fastening part 28 extending in a direction 172 that is oriented so as to be at least substantially perpendicular to the movement plane 30. The latching element 170 is disposed on the fastening part 28. The latching element 170 is disposed within the other attachment region 97, in particular on an internal side of the wall 112 of the other attachment region 97 that faces the attachment part 26. The latching element 170 delimits one of the bracing faces 118, or the bracing region 98. The latching element 170, in a section plane that is oriented so as to be at least substantially perpendicular to the movement plane 30 and shown in particular in FIG. 7, has a wedge-shaped basic shape. The latching element 170 at least substantially extends perpendicularly to the movement plane 30, or when viewed along the pivot axis 40, extends along a straight distance on the fastening part 28 (see FIG. 4). The latching element 170, for fastening the attachment part 26, by means of the fastening part 28 engages on the clearance region 70 of the attachment part 26. The latching element 170 is disposed so as to be spaced apart from the pivot axis 40. The latching element 170 is disposed on an end of the fastening part 28 that faces away from the bearing region 92 (see FIG. 4). The latching element 170 is configured so as to be integral with the fastening part 28. The fastening element 28, in a region of the latching element 170, in particular within the other attachment region 97, has in particular a clearance 194 (see FIG. 3) which is provided so as to enable the latching element 170 to be released from the attachment part 26 by a user. The clearance 194 delimited by the fastening part 28 is configured across an entire wall thickness 116 of the fastening part 28. The clearance 194 delimited by the fastening part 28 has a rectangular basic shape. However, other design embodiments of the clearance 194 are also conceivable.
[0052] The attachment part 26 has a receptacle clearance 174 for protecting the fastening part 28 during operation of the machine tool 12, wherein the receptacle clearance 174 is disposed on an external side of the attachment part 26 that faces away from the attachment face 156. The clearance region 70 of the attachment part 26 preferably comprises the receptacle clearance 174. The attachment part 26 delimits a latching clearance 176 which is disposed in the clearance region 70. The wall 80 of the clearance region 70 that delimits the latching clearance 176 has a larger minimum spacing from the central axis 60, or from the rotation axis 20, than the receptacle clearance 174. The latching clearance 176 is in particular configured so as to be integral with the receptacle clearance 174. The receptacle clearance 174, in a direction that faces the central axis 60 or the rotation axis 20, is delimited by the external wall 62 of the attachment part 26. However, other design embodiments of the latching element 170 and/or of the receptacle clearance 174 are also conceivable, in particular having more than one latching element 170 and/or a latching element 170 that is disposed on the attachment part 26.
[0053] The external face 138 of the fastening part 28 is disposed on a side of the fastening part 28 that faces away from the receptacle clearance 174. A minimum spacing 178 of the external face 138 of the fastening part 28 and of the external face 160 of the attachment part 26, oriented so as to be at least substantially parallel to the pivot axis 40 and/or to the central axis 60, is in particular at most 2 mm, preferably at most 1 mm, and particularly preferably at most 0.5 mm, wherein the external face 160 of the attachment part 26 has in particular a smaller minimum spacing 180 from the movement plane 30 and/or from the machine tool 12, in particular from the tool receptacle 18, than the external face 138 of the fastening part 28. The external face 138 of the fastening part 28 and the external face 160 of the attachment part 26 particularly preferably extend at least largely within a common plane that is preferably oriented so as to be at least substantially parallel to the movement plane 30.
[0054] The fastening part 28, in particular the walls 100, 112 of the two attachment regions 96, 97, on an internal side delimits/delimit an attachment receptacle 182 which, in particular in the braced or assembled state, is provided for at least partially receiving the attachment part 26. The attachment receptacle 182, in particular in FIG. 7, is shown in a region of the other attachment region 97. The fastening part 28, in particular the walls 100, 112 of the two attachment regions 96, 97, is/are configured in such a manner that an internal face 184 of the wall 72 of the casing region 64 of the attachment part 26 is configured so as to be flush with an internal face 186 of the fastening part 28 that is adjacent to the attachment receptacle 182, said internal face 184 conjointly with said internal face 186 being in particular configured in a plane that is oriented so as to be at least substantially perpendicular to the movement plane 30.
