Stop unit, power tool device and method

Abstract

The invention relates to a stop unit (10) for guiding a workpiece (8), comprising a stop body (1) which extends in a longitudinal direction of the stop unit (10) and a fastening device which has a first fastening means (11) and a second fastening means (12) which can be brought into a respective fastening position in order to fasten the stop unit (10) at an electric power tool (20), in particular a sawing unit, and which are arranged spaced apart from one another in the longitudinal direction, the stop unit furthermore comprising an operating element which is coupled to the first fastening means (11) and the second fastening means (12) and which can be brought into a first operating element movement by means of which the fastening device can be brought into a first fastening state and subsequently into a second fastening state in sequence, wherein in the first fastening state the first fastening means (11) is in its fastening position and the second fastening means is in a release position, and wherein in the second fastening state the first fastening means and the second fastening means (11, 12) are in the respective fastening position.

Description

Technical Field

[0001] This invention relates to a stop unit for guiding a workpiece. The stop unit includes a stop body extending along the longitudinal direction of the stop unit and a fastening device having a first fastening mechanism and a second fastening mechanism. The first and second fastening mechanisms are capable of being inserted into corresponding fastening positions to fasten the stop unit to a power tool, particularly a sawing unit, and the first and second fastening mechanisms are arranged longitudinally spaced apart from each other. The stop unit is, for example, a parallel stop for a table saw. Background Technology

[0002] In the conventional implementation, the two fastening mechanisms are decoupled from each other and operated separately using corresponding levers to cause the fastening mechanisms to clamp at the power tool.

[0003] In another conventional implementation, two fastening mechanisms are coupled to each other via a connecting rod and operated simultaneously using a single lever, thereby clamping both fastening mechanisms to the power tool at the same time. Summary of the Invention

[0004] The purpose of this invention is to provide an easy-to-operate stop unit that enables reliable operation of power tools.

[0005] The stop unit includes an operating element coupled to a first fastening mechanism and a second fastening mechanism. The operating element is capable of being engaged in a first operating element movement, through which the fastening device can be sequentially engaged first into a first fastening state and then into a second fastening state. In the first fastening state, the first fastening mechanism is in its fastened position and the second fastening mechanism is in its released position. In the second fastening state, the first fastening mechanism and the second fastening mechanism are in their respective fastened positions.

[0006] The fastening device then sequentially occupies a first fastening state and then a second fastening state via the operating element. In the first fastening state, only the first fastening mechanism provides clamping at the power tool in a suitable manner, while the second fastening mechanism has not yet provided clamping at the power tool in a suitable manner. Thus, before both fastening mechanisms provide corresponding clamping, especially at the power tool, the device first operates through the state (i.e., the first fastening state), in which only the first fastening mechanism provides clamping, especially at the power tool.

[0007] By first operating through the first fastening state, it is more easily ensured that the stop unit occupies a predetermined stop unit orientation relative to the power tool, especially relative to the tool's feed direction and / or cutting direction. Preferably, the first fastening mechanism is configured to cause the stop unit to occupy the predetermined stop unit orientation when the first fastening position is occupied. By having the second fastening mechanism occupy the second fastening position only when the first fastening mechanism is already in the first fastening position, the risk that the second fastening position, especially the clamping caused by the second fastening mechanism, might interfere with the stop unit orientation relative to the tool to be induced by the first fastening mechanism can be reduced or eliminated. Therefore, by sequentially occupying the first and second fastening states, correct stop unit orientation and thus reliable operation can be achieved. These two fastening states are caused by a single operating element and a single operating element movement of the operating element, especially a single rotational movement. Therefore, the stop unit can be easily operated.

[0008] The present invention also relates to a power tool device, particularly a sawing device, which includes a power tool, particularly a sawing unit and a stop unit.

[0009] The present invention also relates to a method for operating a power tool, the method comprising the steps of: placing an operating element into a first operating element-movement so as to sequentially place a fastening device first into a first fastening state and then into a second fastening state. Attached Figure Description

[0010] The following further exemplary details and exemplary embodiments are illustrated with reference to the accompanying drawings. Here: Figure 1 A perspective view of the stop unit is shown. Figure 2 A perspective view of the power tool equipment is shown. Figure 3 A cross-sectional view of the first fastening mechanism is shown. Figure 4 A cross-sectional view of the second fastening mechanism is shown. Figure 5 The side view and cross-sectional view of the stop unit in the released state are shown. Figure 6 The side view and cross-sectional view of the stop unit in the first tightened state are shown. Figure 7 The side view and cross-sectional view of the stop unit in the second fastened state are shown. Figure 8 A schematic diagram of the first axial end of the stop unit is shown from above, and Figure 9 A schematic diagram of the first axial end is shown below. Detailed Implementation

[0011] In the following explanation, refer to the directions indicated in the attached diagram, namely the x, y, and z directions, which are orthogonal to each other. The x and y directions are horizontal, and the y direction is vertical.

[0012] Figure 1 Stop unit 10 is shown. Stop unit 10 is particularly implemented as a longitudinal stop and can also be referred to as a parallel stop. Stop unit 10 is used to guide workpiece 8. Stop unit 10 can be fastened to power tool 20, particularly sawing unit, preferably bench saw. Stop unit 10 defines a guide axis along which workpiece 8 can be guided.

[0013] The stop unit 10 includes a stop body 1 extending along the longitudinal direction of the stop unit 10. The longitudinal direction is exemplary oriented along the x-direction. The stop unit 10, and in particular the stop body 1, extends along a longitudinal axis 5 oriented along the longitudinal direction.

[0014] The stop body 1 is preferably implemented in a strip shape. Exemplarily, the stop body 1 is square. The stop body 1 has a stop surface 7 along which the workpiece 8 can be guided. The stop surface 7 is oriented vertically, particularly orthogonally to the y-direction, in a suitable manner. The stop surface 7 is arranged on a first longitudinal side of the stop body 1. The stop surface 7 defines a guide axis in a suitable manner.

[0015] The stop unit 10 further includes a fastening device. The fastening device includes a first fastening mechanism 11 and a second fastening mechanism 12. Figure 3 An exemplary design of the first fastening mechanism 11 is shown in the figure, and... Figure 4 An exemplary design of the second fastening mechanism 12 is shown in the figure.

[0016] The first fastening mechanism 11 and the second fastening mechanism 12 can be engaged in corresponding fastening positions to secure the stop unit 10 to the power tool 20, particularly the sawing unit. The fastening position of the first fastening mechanism 11 should also be referred to as the first fastening position, and the fastening position of the second fastening mechanism should also be referred to as the second fastening position. The first and second fastening mechanisms are implemented as corresponding clamping mechanisms. In the first fastening position, the first fastening mechanism provides clamping relative to the power tool 20, and in the second fastening position, the second fastening mechanism provides clamping relative to the power tool.

[0017] The first fastening mechanism 11 and the second fastening mechanism 12 can be engaged in corresponding release positions to loosen the stop unit 10 at the power tool 20. The release position of the first fastening mechanism 11 should also be referred to as the first release position, and the release position of the second fastening mechanism should also be referred to as the second release position. In the first release position, the first fastening mechanism does not provide clamping relative to the power tool 20, and in the second release position, the second fastening mechanism does not provide clamping relative to the power tool.

[0018] The first fastening mechanism 11 and the second fastening mechanism 12 are arranged longitudinally and spaced apart from each other. Preferably, the first fastening mechanism 11 is arranged at the first axial end 21 of the stop body 1, and / or the second fastening mechanism 12 is arranged at the second axial end 21 of the stop body 1. In particular, the first fastening mechanism 11 and / or the second fastening mechanism 12 are arranged on the lower side of the stop body 1.

[0019] The stop unit 10 further includes an operating element 2. The operating element 2 is exemplaryly arranged on the stop body 1, particularly on the second longitudinal side of the stop body 1. The second longitudinal side is arranged opposite to the first longitudinal side and exemplaryly oriented orthogonally to the negative y-direction. Exemplarily, the operating element 2 is implemented as an operating lever. The operating element 2 is movably, particularly rotatably, supported on the stop body 1. The operating element 2 is coupled to the first fastening mechanism 11 and the second fastening mechanism 12, more precisely, in a suitable manner, by a coupling mechanism preferably arranged in the stop body 1.

[0020] The operating element 2 can be manually engaged by the user into the first operating element movement. In a suitable manner, the operating element 2 can be manually grasped and moved by the user to engage into the first operating element movement. The first operating element movement is exemplary of a first rotational movement along a first rotational direction, exemplary of a clockwise direction (in the xz view). Through the first operating element movement, the fastening device can be sequentially engaged first into a first fastened state and then subsequently into a second fastened state. Figure 6 The first fastening state is shown in the diagram, and... Figure 7 The second fastening state is shown. In the first fastening state, the first fastening mechanism 11 is in its fastened position (i.e., in the first fastened position) and the second fastening mechanism 12 is in its released position. In the second fastening state, the first fastening mechanism and the second fastening mechanisms 11 and 12 are in their respective fastened positions, that is, the first fastening mechanism is in the first fastened position and the second fastening mechanism is in the second fastened position.

[0021] Specifically, the fastening device can be moved from a released state to a second fastened state via a first operating element. Figure 5The image shows the released state. In the released state, the first fastening mechanism and the second fastening mechanism 11, 12 are in their respective released positions, that is, the first fastening mechanism is in the first released position and the second fastening mechanism is in the second released position.

[0022] When installed on the power tool 20, the stop unit 10 cannot be removed from the power tool 20 in the first and / or second tightened states. In the released state, the stop unit 10 can be removed from the power tool 20.

[0023] The operating element 2 can also be inserted into a second operating element movement, which is suitably arranged opposite to the first operating element movement. The second operating element movement is exemplary in a second rotational direction, exemplary in a counterclockwise direction (in the xz view). Through the second operating element movement, the fastening device can be moved from a second fastened state, particularly from a first fastened state, into a released state.

[0024] The first fastening mechanism 11 includes an orientation section 3. The orientation section 3 extends along an orientation section-longitudinal axis 6. The orientation section-longitudinal axis 6 is orthogonally oriented to the longitudinal axis 5 of the stop unit 10. The orientation section-longitudinal axis 6 is oriented in the y-direction in a suitable manner. The orientation section 3 is exemplaryly shaped and is appropriately positioned at a first axial end 21 on the underside of the stop body 1. Preferably, the y-extension of the orientation section 3 is greater than the y-extension of the stop body 1. Exemplarily, the orientation section 3 extends beyond the stop body 1 on both sides about the y-axis.

[0025] The directional section 3 abuts against the reference section 4 of the power tool 20 so that the stop unit 10, in the first fastened state, is introduced relative to the power tool into a predetermined stop unit orientation with its longitudinal axis extending in the longitudinal direction, such that the stop unit is already in the predetermined stop unit orientation when it occupies the second fastened state sequentially after the first fastened state. In a suitable manner, the stop unit orientation is finally fixed in the first fastened state by the directional section 3, and the occupation of the second fastened state, especially the occupation of the second fastened position, no longer changes the stop unit orientation.

[0026] Preferably, in the predetermined stop unit orientation, the guide axis of the stop unit 10 is oriented relative to the machining axis, especially the cutting axis, of the power tool 20 such that the guide axis and the cutting axis are far apart (i.e., diverging) from each other along the feed direction (the feed direction from the workpiece 8 to the tool 9 of the power tool 20), or the guide axis and the cutting axis extend parallel to each other. Such a stop unit orientation can reduce the risk of kickbacks.

[0027] Figure 2 A power tool device 30 is shown, which is exemplary implemented as a sawing device. The power tool device 30 includes a power tool 20, which is exemplary implemented as a sawing unit. The power tool device 30 further includes a stop unit 10.

[0028] exist Figure 2 The stop unit 10 is shown in its mounted position on the power tool 20. The stop unit 10 can be completely removed from the power tool 20 in a suitable manner (particularly by loosening the first fastening mechanism 11 and the second fastening mechanism 12).

[0029] The power tool 20 includes a workpiece support 14, which is particularly implemented as a workpiece support surface. The workpiece support 14 is orthogonal to the z-direction in a prescribed orientation of the power tool 20. Exemplarily, a stop unit 10 (in the state of being mounted on the power tool) is arranged on the workpiece support 14. Exemplarily, the stop unit 10 extends over at least 80% of the x-extension of the workpiece support 14 and / or the power tool 20.

[0030] The power tool 20 includes a tool 9, which is exemplary implemented as a saw blade. The tool 9 exemplaryly defines a feed direction oriented along the x-direction, along which a workpiece 8 can be pushed onto the tool 9 for machining. Exemplarily, the tool 9 extends upward from the workpiece support 14. The tool 9 defines a cutting direction (particularly oriented along the x-direction) and a cutting axis oriented along the cutting direction.

[0031] The power tool 20 includes a support structure 16 suitably, which exemplary has a basic square shape. An exemplary workpiece support 14 is provided on the upper side of the support structure 16. Exemplarily, the power tool 20 is placed, particularly fixedly, on a base, such as a workbench or operating table, using the lower side of the support structure 16 when machining the workpiece 8 with the tool 9.

[0032] The power tool 20 is implemented, for example, as a mobile or semi-fixed power tool 20. The power tool 20 can be carried by a single person in a suitable manner.

[0033] The stop unit 10 is suitably implemented as a parallel stop. When mounted on the power tool 20, the stop unit 10 is oriented longitudinally along the feed direction, allowing the workpiece 8 to be pushed along this feed direction onto the tool 9 of the power tool 20 for machining. The stop unit 10 faces the tool 9 with its stop side 7. Specifically, when mounted on the power tool 20, the stop unit 10 is arranged laterally close to the tool 9, particularly laterally close to the cutting axis of the tool 9.

[0034] Preferably, the power tool 20 has a first fastening section 17 and / or a reference section 4, which, when the stop unit 10 is mounted on the power tool 20, is fastened by a first fastening mechanism 11 at the first fastening section and / or the reference section (in a first fastening state and a second fastening state). Exemplarily, the first fastening mechanism 11 clamps between the first fastening section and the reference section 4. Exemplarily, the first fastening section 17 is a first abutment surface for the first fastening mechanism 11, which is particularly vertically oriented, and / or the reference section 4 is a second abutment surface for the first fastening mechanism 11, which is particularly vertically oriented.

[0035] The first fastening section 17 and / or the reference section 4 are exemplary arranged in the front boundary region of the workpiece support 14 (especially relative to the x direction).

[0036] Preferably, the power tool 20 has a fastening recess 15, which exemplaryly provides a first fastening section 17 and a reference section 4. The fastening recess 15 is particularly disposed on the upper side of the support structure 16, and particularly in the workpiece support portion 14. The fastening recess 15 exemplaryly extends in the y-direction and preferably extends over at least 30% of the y-extension of the workpiece support portion 14 and / or the power tool 20. The fastening recess 15 is exemplaryly disposed in the front boundary region of the workpiece support portion 14. With the stop unit 10 mounted in the power tool 20, the directional section 3 is inserted into the fastening recess 15.

[0037] The fastening recess 15 has a first recess inner side that provides a first fastening section 17. The first recess inner side is exemplary to be orthogonal to the positive x-direction. The fastening recess 15 has a second recess inner side opposite to the first recess inner side that provides a reference section 4.

[0038] The power tool 20 further includes a second fastening section 18, which is secured to the stop unit 10 (in a second fastening state) by means of a second fastening mechanism 12 when the stop unit 10 is mounted on the power tool 20. Exemplarily, the second fastening mechanism 12 clamps to the second fastening section 18. Exemplarily, the second fastening section 18 is a particularly horizontally oriented abutment surface for the second fastening mechanism 12. The second fastening section 18 is exemplaryly arranged in the rearward region (particularly relative to the x-direction) of the workpiece support 14 and / or the power tool 20, particularly at the rearward end (relative to the x-direction).

[0039] Figure 3A cross-sectional view of the first fastening mechanism 11 is shown in the following state, in which the directional section 3 is inserted into the fastening groove 15 and the first fastening mechanism 11 is in a first released position. In the first released position, the first fastening mechanism 11 does not provide fastening of the stop unit 10 at the power tool 20 (in particular, it does not provide vertical fastening and / or does not provide effective fastening in the y-direction).

[0040] The first fastening mechanism 11 includes a first fastening element 31. The first fastening element 31 can be inserted into the first fastening element-movement relative to the orientation section by the first operating element-movement to occupy a first fastening position, and thus engage with the first fastening section 17 of the power tool 20.

[0041] In the first fastening position of the first fastening mechanism 11, the first fastening element 31 is pressed against the first fastening section 17, exemplary against the inside of the first groove, and the directional section 3 is pressed against the reference section 4, exemplary against the inside of the second groove, so as to provide clamping fastening of the stop unit 10 at the power tool 20.

[0042] Reference section 4 has a predetermined orientation relative to the cutting axis of tool 9, thereby obtaining a predetermined stop unit orientation by abutting the orientation section 3 against the reference section 4.

[0043] The first fastening element 31 is exemplary supported relative to the stop body 1, particularly around the first fastening element pivot axis 19 oriented in the y-direction. The first fastening element moves, especially pivotally.

[0044] The first fastening element 31 includes a first clamping section 23 that extends from the orientation section 3, particularly in the negative x direction, in a first fastened position so as to press against the first fastening section 17. The first clamping section 23 is located below the stop body 1. The first clamping section 23 is located in the fastening groove 15 when the stop unit 10 is mounted on the power tool 20.

[0045] The first fastening element 31 has a coupling section 24, which is coupled to the operating element 2 via a coupling mechanism. Exemplarily, the coupling section 24 is arranged in the stop body 1.

[0046] The coupling mechanism of the stop unit 10 exemplary includes a first coupling element 25, particularly implemented as an eccentric element, which couples the operating element 2 to the first fastening element 31, thereby converting the first operating element motion into the first fastening element motion. In a suitable manner, the first coupling element 25 is anti-rotatably coupled to, and particularly fastened to, the operating element 2. The first coupling element 25 is rotatably supported relative to the stop body 1 about a rotation axis (exemplarily the rotation axis of the operating element 2). The first coupling element 25 is located on the coupling section 24. The first coupling element 25 has a first outer contour region 26 and a second outer contour region 27. Exemplarily, the first outer contour region 26 and the second outer contour region 27 are regions of the outer contour of the first coupling element 25 in the xz section. The radius of the first outer contour region 26 (relative to the rotation axis of the first coupling element 25) is suitably smaller than the radius of the second outer contour region 27 (relative to the rotation axis of the first coupling element 25). Preferably, the radius of the second outer contour region 27 is constant.

[0047] In the first rotational position range of the operating element 2, the first coupling element 25 abuts against the coupling section 24 with its first outer contour region 26, thereby achieving a first release position (and in particular, a release state of the fastening device) of the first fastening element 31. Following the first rotational position range is a second rotational position range, and following the second rotational position range is a third rotational position range. In the second and third rotational position ranges of the operating element 2, the first coupling element 25 abuts against the coupling section 24 with its second outer contour region 26, thereby causing a first fastening position of the first fastening element 31. Exemplarily, compared to the first rotational position range, the coupling section 24 is pressed further downward in the second and third rotational position ranges.

[0048] The coupling section 24 exemplaryly includes a spring plate 28. In a suitable manner, a first coupling element 25 is positioned on the spring plate 28. The spring plate 28 is preferably supported on the stop body 1 and thereby applies a spring force to the fastening element 31, which forces the fastening element 31 into a released position.

[0049] Optionally, the coupling section 24 includes a clamping force adjusting element 29, which is exemplary implemented as a threaded pin. The clamping force of the first fastening mechanism 11 can be adjusted by means of the clamping force adjusting element 29. The clamping force adjusting element 29 is exemplary arranged on the side of the spring plate 28 opposite to the first coupling element 25 and presses the spring plate 28 in the direction toward the coupling element 25.

[0050] The coupling mechanism of the stop unit 10 further includes a second coupling element 33, which is exemplary implemented as a coupling rod. The second coupling element 33 couples the operating element 2 to the second fastening mechanism 12. The second coupling element 33 converts the first operating element movement (implemented as rotational movement) into movement with a linear motion component (especially along the x-direction). The second coupling element 33 is exemplary rotatably coupled to and / or radially spaced from the rotation axis of the operating element 2, especially fastened to the operating element, so that the first operating element movement causes the second coupling element 33 to move with a linear motion component. The second coupling element 33 exemplary extends over at least 60% or at least 70% of the longitudinal extension of the stop unit 10. The second coupling element 33 is particularly fully arranged in the stop body 1.

[0051] Figure 4 A cross-sectional view of the second fastening mechanism 12 is shown in the following state, in which the stop unit 10 is mounted on the power tool 20 and the second fastening mechanism 12 is in a second release position. In the second release position, the second fastening mechanism 12 does not provide fastening of the stop unit 10 on the power tool 20 (in particular, it does not provide vertical fastening and / or does not provide effective fastening in the y-direction).

[0052] The second fastening mechanism 12 includes a second fastening element 32, which is exemplary implemented as a hook element. The second fastening element 32 can be inserted into the second fastening element movement by the first operating element movement in order to occupy a second fastening position, and thus engage with the second fastening section 18 of the power tool 20.

[0053] Preferably, the second fastening element 32 is more flexible than the first fastening element 31.

[0054] In the second fastening position of the second fastening mechanism 12, the second fastening element 32 is pulled toward the second fastening section 18 so as to provide a clamping fastening of the stop unit 10 at the power tool 20. Exemplarily, in the second fastening position, the clamping protrusion of the power tool 20 is clamped between the second fastening element 32 and the underside of the stop body 1.

[0055] The second fastening element 32 is exemplary supported in a pivotable manner relative to the stop body 1, particularly around the pivot axis 35 of the second fastening element oriented in the y-direction. The second fastening element moves, especially pivotally.

[0056] The second fastening element 32 has a second clamping section 34, which is particularly implemented as a hook section and is preferably pressed against the second fastening section 18 in the second fastening position.

[0057] The second fastening element 32 is coupled to the operating element 2 via a coupling mechanism, particularly the second coupling element 33.

[0058] The second coupling element 33 is exemplary in that it is rotatably coupled to and / or radially spaced from the second fastening element-pivot axis 35 with respect to the second fastening element 32, particularly fastened to the second fastening element. The linear motion component of the second coupling element 33, caused by the motion of the first operating element, causes the second fastening element to move, exemplary pivoting about the second fastening element-pivot axis 35.

[0059] In the first rotational position range of the operating element 2 (and preferably in the second rotational position range), the second fastening element 32, especially the second clamping section 34, is not engaged with the second fastening section 18 and is therefore in the second release position.

[0060] In the third rotational position range of the operating element 2, the second fastening element 32, especially the second clamping section 34, engages with the second fastening section 18 and is thus in the second fastening position.

[0061] Figures 5 to 7 The diagram shows different states through which the fastening device of the stop unit 10 operates when the operating element 2 is placed into the first operating element - in motion.

[0062] exist Figure 5 The diagram shows a released state in which the stop unit 10 can be removed from the power tool, for example, by the user grasping the stop unit 10 and lifting it upwards. In the released state, the first fastening mechanism 11, particularly the first fastening element 31, is in a first released position. In the released state, the second fastening mechanism 12, particularly the second fastening element 32, is in a second released position. In a suitable manner, in the released state, the stop unit 10 can be positioned, particularly freely and preferably steplessly, along the y-direction relative to the tool 9 and / or the workpiece support 14 (particularly via the directional section 3 inserted in the fastening groove 15).

[0063] Preferably, the orientation of the stop unit 10 relative to the tool 9, and especially the orientation of the guide axis relative to the cutting axis, is not fixed in the released state. In a suitable manner, the guide axis can move, and especially pivot, in the horizontal plane, relative to the cutting axis in a suitable manner in the horizontal plane, i.e., the xy plane, in the released state.

[0064] Exemplarily, the release state is induced by the operating element 2 being within the first rotational position range. Exemplarily, the operating element 2 is oriented vertically upward within the first rotational position range.

[0065] exist Figure 6The diagram shows a first fastened state. In the first fastened state, the first fastening mechanism 11, and in particular the first fastening element 31, is in a first fastened position. In the first fastened state, the second fastening mechanism 12, and in particular the second fastening element 32, is in a second released position.

[0066] Preferably, the stop unit 10 is securely fixed to the power tool 20 in all spatial directions by the first fastening mechanism 11 in the first fastened state. In a suitable manner, in the first fastened state, the orientation of the stop unit 10 relative to the tool 9, especially the orientation of the guide axis relative to the cutting axis, is fixed and, in a suitable manner, cannot be changed.

[0067] Exemplarily, the first fastening state is induced by the operating element 2 being within the second rotational position range. Exemplarily, the operating element 2 is oriented diagonally upward within the second rotational position range.

[0068] The transition from the released state to the first tightened state is achieved during the first operating element-movement phase.

[0069] The first operating element movement includes a first operating element movement phase that causes a first fastening element movement of the first fastening element 31 of the first fastening mechanism 11. The first fastening element 31 (during the first operating element movement) presses against the first fastening section 17 of the power tool 20 to establish a first fastening state. The first fastening element movement is performed relative to the orientation section 3. When the first fastening element 31 abuts against the first fastening section 17, the first fastening element movement causes the orientation section 3 to press against the reference section 4, thereby positioning the stop unit 10 in a predetermined stop unit orientation with its longitudinal axis 5 relative to the tool 9, particularly relative to the cutting axis.

[0070] exist Figure 7 The second fastening state is shown. In the second fastening state, the first fastening mechanism 11, especially the first fastening element 31, is in the first fastening position. In the second fastening state, the second fastening mechanism 12, especially the second fastening element 32, is in the second fastening position.

[0071] Preferably, in the second fastened state, the stop unit 10 is securely fixed to the power tool 20 in all spatial directions by the first fastening mechanism and the second fastening mechanisms 11, 12. In a suitable manner, in the second fastened state, the orientation of the stop unit 10 relative to the tool 9, especially the orientation of the guide axis relative to the cutting axis, is fixed and, in a suitable manner, cannot be changed.

[0072] Exemplarily, the second fastening state is induced by the operating element 2 being in the third rotational position range. Exemplarily, the operating element 2 is oriented horizontally in the third rotational position range.

[0073] The transition from the first fastening state to the second fastening state is achieved during the first operating element-movement phase and the second operating element-movement phase. In a suitable manner, the orientation of the stop unit, i.e., the orientation of the stop unit 10 relative to the tool 9, and especially the orientation of the guide axis relative to the cutting axis, does not change during the transition from the first fastening state to the second fastening state.

[0074] The operating element-movement includes a second operating element-movement phase following the first operating element-movement phase, which causes the second fastening element 32 of the second fastening mechanism 12 to engage with the second fastening section 18 of the power tool 20 in order to establish a second fastening state.

[0075] Preferably, the second fastening element 32 (by the first operating element) engages with the second fastening section 18 only when the first fastening element-movement ends.

[0076] Preferably, the first fastening element 31 does not move during the second operating element-movement phase. Specifically, the first fastening element-movement has already ended at the start of the second operating element-movement phase. Exemplarily, the first coupling element 25 rolls on the coupling section 24 with a second outer contour region 27 during the second operating element-movement phase. The second outer contour region 27 has a constant radius (relative to the axis of rotation of the first coupling element 25), so that the first coupling element 25 does not cause movement of the first fastening element 31 during the second operating element-movement phase.

[0077] Figure 8 The first axial end 21 of the stop unit 10 is shown from above.

[0078] Exemplarily, the orientation section 3 has an orientation adjustment element 36 by which a predetermined stop unit orientation can be adjusted. The orientation adjustment element 36 is exemplary a threaded pin. Suitablely, the orientation section 3 has a through hole extending particularly along the x-direction, in which the orientation adjustment element 36 is disposed. The orientation section 3 has an orientation section-body 39, in which the through hole is disposed, and / or the orientation adjustment element 36 is adjustable relative to the orientation section-body, particularly along the x-direction.

[0079] Figure 9The first axial end 21 of the stop unit 10 is shown below. The orientation section 3 exemplaryly defines two abutment points, which the orientation section 3 can use to abut against the reference section 4 to achieve a predetermined stop unit orientation. Exemplarily, the first abutment point is defined by a first protrusion (particularly extending in the x-direction) of the orientation section-body 39. Suitablely, the second abutment point is defined by the orientation adjustment element 36. Preferably, the orientation section 3 includes a clamping plate 38, which is suitablely fastened to the orientation section-body 39, and the orientation section 3 can use this clamping plate to abut against the reference section 4 to achieve the predetermined stop unit orientation. The clamping plate 38 is suitablely positioned on the first protrusion 41 and / or on the orientation adjustment element 36, thereby defining the two abutment points.

[0080] Optionally, the power tool 20 includes a position display device, such as a scale, for displaying the position of the stop unit 10 relative to the power tool 20 in a direction orthogonal to the longitudinal direction. The position display device allows the user to adjust the stop unit 10 to a specific position along the y-direction.

[0081] The power tool device 30 can be operated by means of the steps of: placing an operating element into a first operating element-movement so as to sequentially place the fastening device first into a first fastening state and then into a second fastening state.

Claims

1. A power tool device (30) comprising a power tool (20) and a stop unit (10) for guiding a workpiece (8), the stop unit comprising a stop body (1) extending in the longitudinal direction of the stop unit (10) and a fastening device having a first fastening mechanism (11) and a second fastening mechanism (12) capable of being engaged in corresponding fastening positions to fasten the stop unit (10) to the power tool (20), and the first and second fastening mechanisms being arranged spaced apart from each other in the longitudinal direction, the stop unit further comprising an operating element (2) coupled to the first fastening mechanism (11) and the second fastening mechanism (12), the operating element being capable of being engaged in a first operating element movement, the fastening device being capable of being sequentially engaged first in a first fastening state and subsequently in a second fastening state by the first operating element movement, wherein, In the first fastening state, the first fastening mechanism (11) is in its fastened position and the second fastening mechanism is in its released position, and wherein, in the second fastening state, the first fastening mechanism and the second fastening mechanism (11, 12) are in their respective fastened positions, wherein the first fastening mechanism (11) includes a first fastening element (31), the first fastening element being able to be positioned by the movement of the first operating element to occupy the first fastening position, and the first fastening mechanism (11) includes a directional section (3), wherein the first fastening element (31) is used in the first fastening position of the first fastening mechanism (11). The first fastening element (31) presses against the inner side of the first groove of the fastening groove (15) of the power tool (20), and the directional section (3) is used to press against the inner side of the second groove of the fastening groove (15) in the first fastening position of the first fastening mechanism (11), so that the stop unit (10) is provided with clamping fastness at the power tool (20) by the first fastening element (31) and the directional section (3), wherein the inner side of the second groove is opposite to the inner side of the first groove, and the stop unit (10) is firmly fixed at the power tool (20) in all spatial directions by the first fastening mechanism (11) in the first fastening state.

2. The power tool device (30) according to claim 1, wherein, The stop unit (10) includes a coupling mechanism having a first coupling element (25) implemented as an eccentric element, which couples the operating element (2) to the first fastening element (31) to convert the movement of the first operating element into the movement of the first fastening element.

3. The power tool device (30) according to claim 1, wherein, The operating element (2) is arranged on the longitudinal side of the stop body (1).

4. The power tool device (30) according to claim 1, wherein, The first fastening element (31) can press against the first fastening section (17) of the power tool (20) by the movement of the first operating element in order to establish the first fastening state. The second fastening mechanism includes a second fastening element (32), which engages with the second fastening section (18) of the power tool (20) by the movement of the first operating element in order to establish the second fastening state. The stop unit (10) further includes a coupling mechanism having a second coupling element (33) that couples the operating element (2) to the second fastening element (32). The second coupling element (33) is rotatably fastened to the second fastening element (32).

5. The power tool device (30) according to claim 4, wherein, The second fastening element (32) is more flexible than the first fastening element (31).

6. The power tool device (30) according to claim 1, wherein, The orientation section (3) can abut against the reference section (4) of the power tool (20) so that the stop unit (10) in the first fastened state is introduced relative to the power tool (20) with its longitudinal axis (5) extending in the longitudinal direction into a predetermined stop unit orientation, so that the stop unit (10) is already in the predetermined stop unit orientation when it occupies the second fastened state in sequence after the first fastened state.

7. The power tool device (30) according to claim 6, wherein, The directional section (3) extends along the longitudinal axis (6) of the directional section, which is orthogonally oriented to the longitudinal axis (5) of the stop unit (10).

8. The power tool device (30) according to claim 6, wherein, The orientation section (3) has an orientation adjustment element (36) through which the orientation of the predetermined stop unit can be adjusted.

9. The power tool device (30) according to claim 6, wherein, The first fastening element (31) can be inserted into the first fastening element movement by the movement of the first operating element so as to occupy the first fastening position and thus engage with the first fastening section (17) of the power tool (20).

10. The power tool device (30) according to claim 1, wherein, The stop body (1) is implemented in a strip shape.

11. The power tool device (30) according to claim 1, wherein, The first fastening mechanism (11) is disposed at the first axial end (21) of the stop body (1), and / or the second fastening mechanism (12) is disposed at the second axial end (22) of the stop body (1).

12. The power tool device (30) according to claim 1, wherein, The operating element (2) is implemented as an operating lever, and / or the movement of the first operating element is a first rotational movement along a first rotational direction.

13. The power tool device (30) according to claim 1, wherein, The stop unit (10) is implemented as a parallel stop and is arranged laterally close to the tool (9) of the power tool (20) in the state of being installed at the power tool (20).

14. The power tool device (30) according to claim 1, wherein, The first operating element movement includes a first operating element movement phase, which causes the first fastening element (31) of the first fastening mechanism (11) to move, wherein the first fastening element (31) is pressed against the inside of the first groove of the power tool (20) by the first fastening element movement to establish the first fastening state, and wherein the first operating element movement includes a second operating element movement phase after the first operating element movement phase, which causes the second fastening element (32) of the second fastening mechanism (12) to engage with the second fastening section (18) of the power tool (20) to establish the second fastening state.

15. The power tool device (30) according to claim 14, wherein, Only when the first fastening element finishes moving, the second fastening element (32) engages with the second fastening section (18) through the movement of the first operating element.

16. The power tool device (30) according to claim 4 or 9, wherein, The power tool (20) includes a fastening recess (15) having a first recess inner side providing the first fastening section (17) and a second recess inner side opposite the first recess inner side, the second recess inner side providing a reference section (4), wherein the first fastening mechanism (11) includes the first fastening element (31) and the orientation section (3), wherein in a first fastening position of the first fastening mechanism (11), the first fastening element (31) is pressed against the first recess inner side and the orientation section (3) is pressed against the second recess inner side, so as to provide clamping fastening of the stop unit (10) at the power tool (20).

17. The power tool device (30) according to claim 1, further comprising a position display device for displaying the position of the stop unit (10) relative to the power tool (20) in a direction orthogonal to the longitudinal direction.

18. The power tool device (30) according to claim 1, wherein, The power tool device (30) is a sawing device, and the power tool (20) is a sawing unit.

19. A method for operating a power tool device (30) according to claim 1, the method comprising the steps of: placing the operating element (2) into the first operating element movement so as to sequentially place the fastening device first into a first fastening state and then into a second fastening state.

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