Saw device, stack unit, cover unit, conveyance unit and method

Abstract

To provide a saw device which can be easily conveyed and flexibly used.SOLUTION: A saw device 10, especially a circular saw machine or a miter saw includes a saw unit 20 having a saw blade 1 and a support structure 2. The saw unit can be installed on a support at a lower surface 3 and includes a workpiece placement table 4. A workpiece can be placed on the workpiece placement table while a workpiece 6 is sawed by the saw device. The saw device includes a connection interface 5. A connection part which can be released and has the tension resistance in the vertical direction can be formed with at least one system box 30 via the connection interface. Thereby, a vertical stack is formed along with at least one system box. The saw device occupies the conveyance orientation in the vertical stack. In the conveyance orientation, the workpiece placement table is oriented vertically with a placement plane.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sawing apparatus, in particular a circular saw or miter saw, comprising a saw unit having a saw blade and a support structure, the saw unit being mountable with its underside on a support table and having a workpiece carrier on which a workpiece can be placed while being sawed by the sawing apparatus, the sawing apparatus having a coupling interface via which a releasable, vertically pull-resistant connection can be formed with at least one system box, thereby forming a vertical stack together with the at least one system box. [Background technology]

[0002] The system box is, for example, a transport box. Advantageously, the system box has a system box connection interface by means of which the system box can be connected to at least one further system box, thereby forming a vertical stack together with the further system boxes. A connection with vertical tension resistance is in particular a connection that transmits vertical tension forces.

[0003] U.S. Patent No. 8,602,378 describes a stand that can be folded into a hand truck along with a portable circular saw, the circular saw being attached to the mounting surface of the stand.

[0004] WO 2018065042 describes a transportable circular saw in the form of a system box, which can be assembled into a stack of system boxes and transported together with the system boxes, where the transportable circular saw can be assembled into the stack of system boxes in a working orientation, i.e. with the work table oriented horizontally. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] U.S. Patent No. 8,602,378 [Patent Document 2] International Publication No. 2018065042 Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE INVENTION It is an object of the present invention to provide a sawing device that is easy to transport and flexible in use. [Means for solving the problem]

[0007] This problem is solved by a sawing device according to claim 1. The sawing device has a connection interface via which a releasable, vertically pull-resistant connection can be formed with at least one system box, so that together with the at least one system box a vertical stack is formed, the sawing device in the vertical stack occupying a transport orientation, in which the workpiece table is oriented vertically with a loading plane.

[0008] The horizontal dimensions of the system box are fixed, making the system box compatible with other system boxes of the same system. To configure the saw device so that it can be connected to the system box, the saw device must be dimensioned according to the horizontal dimensions, i.e., the basic contours, of the system box. Conventionally, saw devices are configured so that they can be stored in a vertical stack in their working orientation, i.e., with the workpiece table oriented horizontally. In this case, the size of the workpiece table is limited by the horizontal dimensions of the system box.

[0009] According to the present invention, the saw devices can be stored in a vertical stack in a transport orientation, i.e., with the workpiece table oriented vertically. As a result, the length of the workpiece table is no longer limited by the horizontal dimension of the system box. It is possible to provide saw devices with workpiece tables that are longer than the horizontal dimension of the system box but can nevertheless be connected to the system box, thereby forming a vertical stack. The enlarged workpiece table allows the saw devices to be used more flexibly, while still allowing the saw devices to be stored in the stack of the system box and therefore easily transportable.

[0010] Advantageous developments are the subject of the dependent claims.

[0011] The present invention further relates to a stack unit comprising a saw device and a lower system box and / or an upper system box, the saw device being mounted on the lower system box and / or the upper system box being mounted on the saw device, so that the saw device and the lower system box and / or the upper system box together form a vertical stack, the connection interface having a lower connection interface and / or an upper connection interface, the lower connection interface providing a lower, releasable, vertically pull-resistant connection to the lower system box, and the upper connection interface providing an upper, releasable, vertically pull-resistant connection to the upper system box, the saw device occupying a transport orientation in the vertical stack, in which the workpiece placement table is oriented vertically with a placement plane.

[0012] The present invention further relates to a method for handling a saw device, the method comprising the steps of forming a releasable, vertically tension-resistant connection between the saw device and at least one system box, so that the saw device and the at least one system box form a vertical stack, the saw device occupying a transport orientation in the vertical stack, in which the workpiece placing table is oriented vertically with the placing plane.

[0013] The present invention further relates to a cover unit, comprising a cover structure configured as a protective hood for housing a power tool, in particular a circular saw or a miter saw, the protective hood having a connection interface by means of which a releasable, vertically pull-resistant connection to one or more system boxes can be formed, so that the cover unit can form a vertical stack together with one or more system boxes in a transport configuration in which the protective hood houses the power tool.

[0014] The present invention further relates to a transport unit comprising a cover unit and a power tool housed in a protective hood, the transport unit having connecting parts forming a releasable vertically pull-resistant connection, in particular a lower releasable vertically pull-resistant connection and / or an upper releasable vertically pull-resistant connection, the connecting parts being part of the connecting interface, and the entire connecting part being part of the protective hood and not part of the power tool.

[0015] The present invention further relates to a stack unit, the stack unit comprising a transport unit, a lower system box and an upper system box, the transport unit being placed on the lower system box and the upper system box being placed on the transport unit, such that the transport unit, the lower system box and the upper system box together form a vertical stack, the connection interface having a lower connection interface and an upper connection interface, the lower connection interface providing a lower, releasable, vertically pull-resistant connection to the lower system box, and the upper connection interface providing an upper, releasable, pull-resistant connection to the upper system box.

[0016] The present invention further relates to a method for handling cover units or transport units, the method comprising the step of forming a releasable, vertically pull-resistant connection of the protective hood with at least one system box, thereby forming a vertical stack.

[0017] Further exemplary details and exemplary embodiments are described below with reference to the drawings. [Brief explanation of the drawings]

[0018] [Figure 1] 1 shows a perspective view of a sawing device. [Figure 2] 1 shows a schematic view of a sawing device in a transport configuration; [Figure 3] FIG. 1 is a perspective view of a stack unit. [Figure 4] 10 shows a cross-sectional view of the upper docking recess of the docking interface. [Figure 5] 10 shows a cross-sectional view of the rotary lock of the coupling interface. [Figure 6] 10 shows a cross-sectional view of the lower connecting protrusion of the connecting interface. [Figure 7] 10 shows a cross-sectional view of the front connecting protrusion of the connecting interface. [Figure 8] 1 shows the sawing device in working configuration; [Figure 9] 1 shows a multi-piece cover structure. [Figure 10] 10 shows a cross-sectional view of the connecting structure inside the cover structure. [Figure 11] 1 shows a cover unit having a cover structure and a bottom element attachable to the cover structure; DETAILED DESCRIPTION OF THE INVENTION

[0019] 1 shows a sawing apparatus 10 configured as an exemplary circular saw. The sawing apparatus 10 may also be configured as a miter saw.

[0020] The sawing apparatus 10 is preferably a semi-stationary machine. A semi-stationary machine is one that is placed in a fixed position on a support table and / or that can be transported by a single user in order to process a workpiece. Illustratively, the sawing apparatus 10 must be placed in a fixed position on a support table 12 in order to saw the workpiece 6 and / or that can be transported by a single user. For example, the sawing apparatus weighs less than 30 kg and / or has a basic outline (in transport form and transport orientation) of less than 50 cm x 50 cm.

[0021] The sawing device 10 exemplarily comprises a saw unit 20 and a cover structure 50. Advantageously, the saw unit 20, considered alone, already forms a circular saw. The saw unit 20 may also be configured as a miter saw. The cover structure 50 exemplarily is configured as a cover hood, in particular a protective hood, for the saw unit 20.

[0022] Reference will be made below to the mutually orthogonally oriented x, y and z directions shown in the figures, which are relative to the saw apparatus 10 and therefore rotate accordingly when the saw apparatus 10 rotates.

[0023] The x-direction may be referred to as the longitudinal direction. Exemplarily, the x-direction is the feed direction in which the workpiece 6 is pressed against the saw blade 1 of the saw device 10, so that the workpiece 6 is sawed by the saw blade 1. The y-direction may be referred to as the transverse direction. The y-direction is oriented perpendicular to the saw blade plane of the saw blade 1. The z-direction is oriented perpendicular to the mounting plane of the workpiece table 4 of the saw device 10.

[0024] Preferably, saw apparatus 10 is selectively movable between a working configuration and a transport configuration.

[0025] The working configuration is shown, for example, in Figures 1 and 8. In the working configuration, the saw unit 20 can be used to saw a workpiece 6. In the working configuration, the cover structure 50 does not cover the workpiece table 4 and / or does not cover the saw blade 1. For example, the cover structure 50 is removed from the saw unit 20 in the working configuration. Preferably, the cover structure 50 is located beside the saw unit 20 in the working configuration, as illustrated in Figure 8. The saw apparatus 10, particularly the saw unit 20, can be moved to a working orientation. In the working orientation, the x-direction and the y-direction are oriented horizontally, and the z-direction is oriented vertically.

[0026] The transport configuration is shown, for example, in FIGS. 2 and 3. In the transport configuration, the saw apparatus 10 can be stored in (or is stored in) a stack of system boxes 30. In the transport configuration, the cover structure 50 covers the workpiece table 4 and / or the saw blade 1. In particular, the cover structure 50 is attached to the saw unit 20 in the transport configuration, and exemplarily rests on the saw unit 20. For example, the cover structure 50 houses the saw unit 20 in the transport configuration. The saw apparatus 10, in particular the saw unit 20, can be moved to a transport orientation. In the transport orientation, the y-direction and the z-direction are oriented horizontally, and the x-direction is oriented vertically. In the transport orientation, the saw apparatus 10 is rotated relative to the work orientation, in particular rotated 90 degrees around a horizontal axis, in particular a horizontal axis extending in the y-direction. Advantageously, in the transport configuration, the saw blade 1 is attached to the support structure 2 in a standby state and protrudes from the workpiece table 4.

[0027] Exemplarily, the sawing device 10 is configured in a box-like, in particular rectangular parallelepiped, shape, particularly in its transport configuration. Preferably, the sawing device 10 has the outer shape of a system box in its transport configuration.

[0028] The saw unit 20 exemplarily has a saw blade 1 configured as a circular saw blade.

[0029] The saw unit 20 further comprises a support structure 2, which can be mounted, for example, with its underside 3 on a support base 12. The support base 12 is, for example, the top surface of a work surface, in particular a work table or work bench. The support structure 2 has, for example, the basic shape of a rectangular parallelepiped. The support structure 2 provides, in particular, an outer housing for the saw unit 20.

[0030] The saw unit 20 has a workpiece table 4 on which the workpiece 6 can be placed, in particular while it is sawed by the saw device 10. Exemplarily, the workpiece table 4 is the upper surface of the support structure 2. In particular, the workpiece table 4 is a workpiece placement surface. The saw blade 1 may protrude from the workpiece table 4 in the z-direction and / or retract into this workpiece table 4 (in the negative z-direction). In the working orientation, the placement plane of the workpiece table 4 is oriented horizontally, i.e. perpendicular to the vertical direction, and in the transport orientation, the placement plane of the workpiece table is oriented vertically, i.e. perpendicular to the horizontal direction. The placement plane is the xy-plane.

[0031] The saw unit 20 has a drive unit 14 that drives the saw blade 1. The drive unit 14 has, for example, an electric motor. The drive unit 14 is exemplarily arranged in or adjacent to the support structure 2. Exemplarily, the drive unit 14 may be arranged below or above the workpiece table 4.

[0032] Optionally, the saw unit 20 further comprises an adjustment unit 15 for adjusting the orientation and / or height of the saw blade 1 relative to the work table 4. The adjustment unit 15 preferably comprises one or two electric motors.

[0033] Preferably, the saw unit 20 has an operating device 16, via which a user can control the drive of the saw blade 1 and / or adjust the height and / or orientation of the saw blade 1. The operating device 16 is exemplarily arranged on the periphery of the saw unit 20.

[0034] Preferably, the saw unit 20 comprises a control unit 17. The control unit 17 is configured to control the drive unit 14 and / or the adjusting unit 15, in particular according to inputs, for example by a user, on the operating device 16. Preferably, the control unit 17 comprises a microcontroller.

[0035] The cover structure 50 is illustratively configured as a rectangular parallelepiped. The cover structure 50 illustratively has a cover structure upper surface 21 (oriented perpendicular to the positive z-direction), a first cover structure longitudinal surface 23 (oriented perpendicular to the negative y-direction), a second cover structure longitudinal surface 24 (oriented perpendicular to the positive y-direction), a first cover structure short surface 25 (oriented perpendicular to the positive x-direction), and a second cover structure short surface 26 (oriented perpendicular to the negative x-direction). Surfaces 21, 23, 24, 25, and 26 are preferably closed surfaces. Surfaces 23, 24, 25, and 26 are also referred to as peripheral surfaces.

[0036] Exemplarily, the cover structure 50 has an open cover structure underside 27, via which the saw unit 20 can be accommodated in the cover structure 50. In particular, the cover structure 50 can be placed over the saw unit 20 with the open cover structure underside 27 first, in particular in the negative z-direction, so that the saw device 10 is transferred into the transport configuration. The cover structure 50 with the open cover structure underside 27 is exemplarily configured as a protective hood and should be referred to in particular as a cover structure 50A according to a first variant.

[0037] Advantageously, the cover structure 50, in the transport configuration, covers the handling device 16. For example, the cover structure 50 has a peripheral surface, for example the second cover structure short side 26, which covers the handling device 16 in the transport configuration.

[0038] Preferably, in the transport configuration, the peripheral surfaces of the cover structure 50, ie in particular the surfaces 23, 24, 25, 26, in particular completely cover the peripheral surfaces of the saw unit 20 (i.e. in particular the surfaces other than the worktable 4 and the underside 3).

[0039] Advantageously, the cover structure 50 defines an interior space 28 that is sealed in a particularly dust-tight manner around the saw apparatus 10 in the transport configuration. The saw blade 1 and / or the workpiece table 4 are advantageously arranged in the interior space 28. In particular, the workpiece table 4 and the saw blade 1 are protected by the cover structure 50 during transport. Advantageously, the saw apparatus 10 is accommodated in the cover structure 50 in such a way that contaminants located within the saw apparatus 10 or on the workpiece table 4 (in the transport configuration) remain within the saw apparatus 10 or within the interior space 28.

[0040] Preferably, in the transport configuration, the saw device 10 has an outer housing, in particular a rectangular parallelepiped. The outer housing is exemplarily formed, in part, by a cover structure 50. Exemplarily, in the transport configuration, one side of the outer housing is formed by the underside 3 of the support structure 2, and all other sides of the outer housing are formed by the cover structure 50, in particular by sides 21, 23, 24, 25, and 26 of the cover structure 50. Advantageously, the underside 3 is the installation surface of the saw device 10. Preferably, the installation surface of the saw device 10 is formed, in the transport configuration, by the underside or bottom plate of the box-shaped saw device 10. In the transport configuration, the hood-shaped cover structure 50 is placed over the saw unit 20, for example attached to the bottom plate, in order to, in particular, protect the saw unit 20.

[0041] In an alternative configuration of the cover structure, in the transport configuration the outer housing of the saw apparatus 10 is formed entirely by the cover structure 50.

[0042] Illustratively, cover structure 50 has one or more cover structure mounting elements 31 for mounting cover structure 50 to saw unit 20, particularly when cover structure 50 is placed over saw unit 20. For example, cover structure 50 has mounting locks as cover structure mounting elements 31, which are illustratively arranged on the circumferential surface, preferably on the outside, particularly on second cover structure short side 26.

[0043] The cover structure 50 exemplarily has a carrying handle 8 by means of which the saw device can be transported in a transport configuration. The carrying handle 8 is preferably arranged on the second cover structure short side 26, in particular on the outer side. The carrying handle 8 exemplarily has an arcuate configuration. Advantageously, the carrying handle 8 is swivelable and can be selectively transferred into a closed or open pivot position.

[0044] The cover structure 50 exemplarily has an inner connecting structure 9, via which the saw unit 20 is suspended on the cover structure 50 when the saw device 10 is in the transport orientation (in the transport configuration). An exemplary configuration of the inner connecting structure 9 is shown in FIG. 10 . The inner connecting structure 9 in particular has a hook structure 18, which engages in a connecting cavity 19 of the saw unit 20. Exemplarily, the inner connecting structure 9 is arranged on the inner side, on the second cover structure short side 26. The carrying grip 8 is preferably arranged on the outer side of the cover structure 50, in the region of the inner connecting structure 9. In particular, the carrying grip 8 is arranged on the outer side, on the second cover structure short side 26, preferably in the same horizontal area as the inner connecting structure (in the transport orientation). Exemplarily, the carrying grip 8 is arranged such that an imaginary line extending through the carrying grip 8 in the x-direction also extends through the inner connecting structure 9, in particular through the hook structure 18. In particular, the carrying grip 8 is arranged so that when the saw device 10 is carried using the carrying grip 8, the weight of the saw unit 20 is conducted upwards directly to the carrying grip 8 via the inner connecting structure 9.

[0045] The sawing device 10 has a connection interface 5, via which the sawing device 10 can be connected to a system box 30. In particular, via the connection interface 5, a releasable, vertically tension-resistant connection between the sawing device 10 and at least one system box 30 can be formed, whereby a vertical stack with the at least one system box 30 is formed, such that the sawing device 10 occupies a transport orientation in the vertical stack, in which the workpiece table 4 is oriented vertically with its mounting plane.

[0046] In the transport orientation, the workpiece table 4 is oriented with its placement plane perpendicular to the system box upper surface 32 and / or the system box lower surface 33 of the system boxes 30 arranged in a vertical stack.

[0047] A vertically tensile-resistant connection is a connection that transmits forces in the vertical direction. In particular, a vertically tensile-resistant connection is a connection that transmits vertical tension. For example, a vertically tensile-resistant connection functions as a fixed support and / or transmits forces in all spatial directions. In the case where the sawing device 10 is placed on the system box 30, the vertically tensile-resistant connection acts so that lifting the sawing device 10 also lifts the system box 30. In the case where the system box 30 is placed on the sawing device 10 and is connected to the sawing device 10 in a vertically tensile-resistant manner, the vertically tensile-resistant connection acts so that lifting the system box 30 also lifts the sawing device 10.

[0048] A releasable connection that has vertical tension resistance is in particular a connection that can be releasable without the use of tools.

[0049] The system box 30 is, in particular, a transport box. The system box 30 has a system box connection interface by which the system box can be releasably and vertically tension-resistantly connected to a compatible system box, i.e., in particular another system box of the same system, thereby forming a vertical stack. The system box 30 is a rectangular parallelepiped. The system box 30 illustratively has a (illustratively rectangular) system box lower part 35 and a system box lid 34 attached to, in particular resting on, the system box lower part 35. The upper surface of the system box lid 34 is the system box upper surface 32. The lower surface of the system box lower part 35 is the system box lower surface 33.

[0050] Preferably, the cover structure 50 has a connection interface 5. In particular, the connection interface 5 is part of the cover structure 50. The cover structure 50 is advantageously attachable to the saw unit 20, whereby the saw apparatus 10 is transferred to a transport configuration. In the transport configuration, the saw apparatus 10 can be connected to at least one system box 30 using the connection interface 5, whereby together with the at least one system box 30 a stack is formed.

[0051] The connection interface 5 illustratively includes a lower connection interface 5A and / or an upper connection interface 5B. Preferably, the connection interface 5 includes a lower connection interface 5A and an upper connection interface 5B. The lower connection interface 5A allows the saw device 10 to be releasably and vertically pull-resistantly connected to the lower system box 30A on which the saw device 10 is mounted. The upper connection interface 5B allows the saw device 10 to be releasably and vertically pull-resistantly connected to the upper system box 30B mounted on the saw device 10.

[0052] The lower connecting interface 5A is in particular arranged partially or completely on the first cover structure short side 25. The upper connecting interface 5B is in particular arranged partially or completely on the second cover structure short side 26.

[0053] The connection interface 5 advantageously has a plurality of connection portions. The connection portion advantageously has one or more connection portions in fixed positions, for example one or more connection recesses and / or one or more connection protrusions. Advantageously, the connection interface 5 further has at least one (exemplarily exactly one) movably supported connection portion, for example a connection lock. The connection lock is configured in particular as a rotary lock, exemplarily as a T-shaped rotary lock.

[0054] The upper connecting interface 5A exemplarily has a plurality of upper connecting portions, which are in particular arranged on the second cover structure short side 26 and / or on the cover structure top side 21. Exemplarily, the upper connecting portions have connecting recesses 36, which are in particular arranged on the second cover structure short side 26. Advantageously, the upper connecting portions have a rotary lock 37, which is in particular arranged on the cover structure top side 21.

[0055] The lower connecting interface 5A exemplarily has a plurality of lower connecting portions, which are in particular arranged on the first cover structure short side 25 and / or on the cover structure upper side 21. Exemplarily, the lower connecting portions have lower connecting protrusions 38, which are in particular arranged on the first cover structure short side 25 and are configured, for example, as stand feet. Advantageously, the lower connecting portions have front connecting protrusions 39, which are in particular arranged on the cover structure upper side 21.

[0056] The connection interface 5 is advantageously configured such that it can be coupled to a same connection interface, in particular the lower connection portion 5A of the connection interface 5 can be coupled to an upper connection portion of the same connection interface. For example, the lower connection protrusion 38 of the connection interface 5 can be engaged with the connection recess of the same connection interface, and / or the front connection protrusion 39 can be engaged with the rotation lock of the same connection interface.

[0057] 3 shows a stack unit 40. The stack unit 40 is an exemplary form of a vertical stack. The stack unit 40 includes a saw apparatus 10 and a lower system box 30A and / or an upper system box 30B. The system boxes 30A and 30B are examples of the system box 30, and the description of the system box 30 advantageously applies to the upper system box 30A and / or the lower system box 30B, respectively.

[0058] The saw device 10 is placed on the lower system box 30A and / or the upper system box 30B is placed on the saw device 10, so that the saw device 10, the lower system box 30A and / or the upper system box 30B together form a vertical stack.

[0059] Advantageously, the connection interface 5 has a lower connection interface 5A which provides a lower, releasable, vertically pull-resistant connection to the lower system box 30A. Preferably, the connection interface 5 has an upper interface 5B which provides an upper, releasable, vertically pull-resistant connection to the upper system box 30B. The sawing device 10 occupies a vertical stack transport orientation in which the workpiece table 4 is oriented vertically with its loading plane.

[0060] The vertical stack extends vertically upwards in a vertical stack direction 46. In the conveying direction, the negative x-direction of the saw device 10 corresponds to the stack direction 46. The vertical stack is advantageously a rectangular parallelepiped. The reference area of ​​the vertical stack is advantageously identical to the xz dimensions of the saw device 10. In particular, the saw device 10 (in the conveying orientation) and the lower system box 30A and / or the upper system box 30B each have identical horizontal dimensions.

[0061] The system box 30, in particular the lower system box 30A and / or the upper system box 30B, has a system box connection interface, which includes an upper system box connection interface by which the system box 30 can be connected to the lower connection interface 5A, and a lower system box connection interface by which the system box can be connected to the upper connection interface 5B. The system box connection interfaces are advantageously configured to correspond to the connection interfaces 5.

[0062] The upper system box connection interface 5A exemplarily has a plurality of upper system box connection portions, which are particularly arranged on the system box top surface 32 and / or the system box front surface 41. Exemplarily, the upper system box connection portions have system box connection recesses 42, which are particularly arranged on the system box top surface 32. Advantageously, the upper system box connection portions have a system box rotary lock 43, which is particularly arranged on the system box front surface 41.

[0063] The lower system box connection interface 5A exemplarily has a plurality of lower system box connection portions, which are particularly arranged on the system box lower surface 33 and / or the system box front surface 41. Exemplarily, the lower system box connection portions have lower system box connection protrusions 44, which are particularly arranged on the system box lower surface 33 and configured as, for example, stand feet. Advantageously, the lower system box connection portions have front system box connection protrusions 45, which are particularly arranged on the system box front surface 41.

[0064] Figures 4 to 7 show details of the releasable, vertically resistant connection. In Figure 4, it can be seen how the lower system box connection projection 44 of the upper system box 30B engages with the connection recess 36 of the saw unit 10. In Figure 5, it can be seen how the front system box connection projection 45 engages with the rotary lock 37 of the saw unit 10. In Figures 6 and 7, it can be seen how the lower connection projection 38 of the saw unit 10 engages with the system box connection recess 42 of the lower system box 30A.

[0065] Preferably, the cover structure 50 has a workpiece placement portion 7. Exemplary configurations of the workpiece placement portion 7 are shown in Figures 8 and 9. The saw device 10 can be transferred to a working configuration in which the workpiece placement portion 7 provides an additional placement table 11, which, together with the workpiece placement table 4, serves to provide an overall workpiece placement surface on which the workpiece 6 can be placed while it is being sawed by the saw device 10. The overall workpiece placement surface results from the sum of the placement surfaces of the workpiece placement table 4 and the additional placement table 11. Advantageously, in the working configuration, the saw unit 20 rests with its underside 3 on the support table 12, and the workpiece placement portion 7 is arranged beside the saw unit 20, so that the additional placement table 11 is arranged at the same height as the workpiece placement table 4. Preferably, the vertical distance of the underside 3 to the mounting plane of the workpiece table 4 is equal to the distance of the underside of the workpiece placement part 7 (with which the workpiece placement part can be placed on the support pedestal 12) to the mounting plane of the additional table 11. Advantageously, the workpiece placement part 7 has a height equal to the distance of the workpiece placement part 4 from the underside 3 of the sawing device, i.e. from the mounting plane. The workpiece placement part 7 overall provides a larger surface for placing the workpiece 6 when it is sawed by the saw blade 1, i.e. the entire workpiece placement surface.

[0066] Exemplarily, the workpiece placement portion 7 is arranged in the y-direction beside the saw unit 20 in the working configuration. It is likewise conceivable that the workpiece placement portion 7 is arranged in the x-direction beside the saw unit 20 in the working configuration. Advantageously, the workpiece placement portion 7 is located on a support table 12. The support table is configured in a particularly planar manner. Exemplarily, the workpiece placement portion 7 is a hood-shaped part of the cover structure 50. Alternatively, the entire cover structure may be used as the workpiece placement portion 7. Preferably, the cover structure upper surface 21 provides the additional placement table 11. The additional placement table 11 is in particular an additional placement surface. The workpiece 6 can be placed simultaneously on the workpiece placement table 4 and the additional placement table 11 in a particularly planar manner while the workpiece 6 is being sawed by the saw blade 1.

[0067] Optionally, the saw unit 20 has a parallel stopper 47, which is disposed on the workpiece table 4 as shown in FIG. 8 and is removable from the workpiece table 4, so that the workpiece can be positioned on the workpiece table 4 so that the workpiece is simultaneously placed on the additional table 11.

[0068] The cover structure 50 is preferably constructed in multiple pieces. The workpiece placement portion 7 is removable from the remainder of the cover structure, thereby providing a working configuration. Figure 9 shows one exemplary configuration of the cover structure 50, in which the cover structure 50 has a (illustratively hood-shaped) workpiece placement portion 7 and a lower cover structure portion 48. The lower cover structure portion 48 illustratively forms the remainder of the cover structure described above.

[0069] The cover structure 50 having the workpiece placement portion 7 and the cover structure lower part 48 should also be referred to as a cover structure 50B according to a second variant.

[0070] The cover structure 50 is illustratively shaped like a rectangular parallelepiped, and preferably has all sides closed, especially when the lower cover structure 48 is attached to the workpiece placement portion 7. The (particularly) rectangular parallelepiped cover structure 50 is illustratively divided into the workpiece placement portion 7 and the lower cover structure 48 by an imaginary horizontal dividing plane, i.e., a dividing plane lying in the xy plane. The imaginary horizontal dividing plane advantageously extends parallel to the underside 3 of the saw device 10, i.e., especially parallel to the installation surface. The imaginary horizontal dividing plane extends especially through the lower half of the z-direction extension of the cover structure 50. Advantageously, the z-direction extension of the lower cover structure 48 is at most one-third of the z-direction extension of the workpiece placement portion 7. Preferably, the cover structure 50 has a cover structure mounting element 31, which in particular has one or more mounting locks, illustratively arranged on the lower cover structure 48. The cover structure mounting elements 31 are illustratively arranged on the short sides 25, 26 of the cover structure.

[0071] Optionally, the workpiece mounting portion 7 can be advantageously coupled to, and in particular attached to, the saw device 10 and / or the base 12, for example, a work table, so that the workpiece mounting portion 7 is fixed relative to the saw unit 20 and thus cannot slip. For example, the base 12, in particular the work table, has a recess into which the saw unit 20 (in particular with the stand foot of the saw unit 20) and / or the workpiece mounting portion 7 can engage. For example, the base 12 has a hole structure, in particular a blind hole structure providing a recess. For example, the workpiece mounting portion 7 has an engagement structure that engages with the recess of the base 12. The engagement structure is, for example, a stand foot, and this stand foot is in particular the same as the stand foot of the saw unit 20. Optionally, the workpiece mounting portion 7 can have one or more hooks by means of which the workpiece mounting portion 7 can be suspended from the workpiece mounting table 4. Optionally, the saw apparatus 10 comprises a clamping device by means of which the workpiece placing portion 7 can be attached to the saw unit 20 .

[0072] The saw device 10 can be handled in a manner that includes, in particular, a step of forming a releasable, vertically pull-resistant connection between the saw device 10 and at least one system box 30, so that the saw device 10 and the at least one system box 30 form a vertical stack such that the saw device 10 occupies a transport orientation in a vertical stack, and in the transport orientation the workpiece placing table 4 is oriented vertically with its placing plane.

[0073] For example, the saw apparatus 10 is first in a working configuration and working orientation. The saw unit 20 is advantageously resting with its underside 3 on a support base, which is particularly horizontally oriented. The workpiece support table 4 is oriented horizontally with its support plane. The cover structure 50 is advantageously completely removed from the saw unit 20. Exemplarily, in the working configuration, a sawing step is performed. In the sawing step, the workpiece 6 is sawed by the saw blade 1. The sawing step is then completed. Advantageously, the cover structure 50 is placed (particularly by a user) on the saw unit 20 and advantageously attached (particularly by a user) to the saw unit 20, thereby transferring the saw apparatus 10 to a transport configuration. The saw apparatus 10 is then lifted (particularly by a user) and rotated 90 degrees about a predetermined horizontal axis, so that the saw apparatus occupies the transport orientation. In the transport orientation, the first cover structure short side 25 and the second cover structure short side 26 are oriented horizontally, and the workpiece table 4, with its mounting plane, is oriented vertically. The saw device 10 is then placed on the lower system box 30A with its first cover structure short side 25 and attached to the lower system box 30A by the lower connecting interface 5A. Preferably, the upper system box 30B is then placed on the second cover structure short side 26 and attached to the upper connecting interface 5B.

[0074] The cover unit 70 will be described below with reference to FIG.

[0075] The cover unit 70 includes a cover structure 50 configured as a protective hood for accommodating a power tool, particularly a circular saw or a miter saw. The power tool may be the saw unit 20 or a power tool different from a sawing device, i.e., not a sawing device in particular. The power tool is, in particular, a semi-stationary machine. Advantageously, the protective hood is configured like the aforementioned cover structure 50A according to the first variant, so the above-mentioned explanations therefor apply to the protective hood. In particular, the protective hood is configured as a rectangular parallelepiped, whereby the lower surface 27 of the cover structure is advantageously open, and the other surfaces 21, 23, 24, 25, 26 are preferably closed. Exemplarily, the protective hood includes a carrying handle 8 arranged on the short side 26 of the second cover structure.

[0076] The protective hood has a connection interface 5, which is configured in particular as described above, that allows a releasable, vertically pull-resistant connection to be formed with one or more system boxes 30, so that the protective hood 70 can form a vertical stack with one or more system boxes 30 in a transport configuration in which the protective hood houses the power tools.

[0077] Preferably, the connection interface 5 has a lower connection interface 5A by which a lower, releasable, vertically pull-resistant connection can be formed to the lower system box 30A when the protective hood is placed on the lower system box 30A. Advantageously, the connection interface 5 has an upper connection interface 5B by which an upper, releasable, vertically pull-resistant connection can be formed to the upper system box 30B when the upper system box 30B is placed on the protective hood.

[0078] Preferably, the cover unit 70 has a bottom element 49 that can be attached to the cover structure 50, thereby closing the open cover structure underside 27. When the bottom element 49 is attached to the cover structure 50, the cover unit 70 is advantageously a rectangular parallelepiped, in which case, in particular, all sides of the cover unit 70 are closed. Exemplarily, a cover structure attachment element 31 of the cover structure 50, in particular configured as a locking lock, is used to attach the bottom element 49 to the cover structure 50. The bottom element 49 is in particular configured as a bottom plate. Preferably, the bottom element 49 and the protective hood together form a system box, in particular an externally closed system box, when the bottom element 49 is attached to the protective hood 50.

[0079] Preferably, the protective hood has a recess, in particular a coupling recess 36, on its end face for form-fitting connection to a system box 30 that can be installed thereon, which can be releasably fixed to the protective hood by means of its system box rotary lock 43. The end face is the short side 26 of the second cover structure and faces upward, i.e. is oriented horizontally, when the protective hood is stored in a vertical stack.

[0080] Advantageously, the protective hood has further, in particular externally arranged, connecting elements, such as cover structure attachment elements 31, for the connection, in particular for the releasable attachment, of the element closing the protective hood and / or the base plate of the power tool. These connecting elements may also be referred to as primary connecting elements and are in particular operable from outside the protective hood.

[0081] Preferably, the protective hood has internally arranged connecting elements, such as an internal connecting structure 9, in particular one or more hooks, for releasable coupling of the power tool to the protective hood, in particular in the transport orientation of the protective hood. In the transport orientation, the cover structure short sides 25, 26 are oriented horizontally, i.e. perpendicular to the vertical. These connecting elements, which may also be referred to as secondary connecting elements, are used to improve the absorption of forces during transport and / or transportation of the protective hood, so that the weight of the power tool transported inside the protective hood is not only conducted via the primary connecting elements, but also simultaneously via the secondary connecting means to the protective hood, in particular to the transport handle 8.

[0082] Optionally, the bottom surface and / or mounting surface of the power tool is formed by the bottom plate of the cover unit 70 when the power tool is housed within the protective hood.

[0083] Advantageously, a transport unit 60 is provided which comprises a cover unit 70 and a power tool housed in a protective hood. The transport unit 60 comprises connecting parts for forming a releasable vertically pull-resistant connection, in particular a lower releasable vertically pull-resistant connection and / or an upper releasable vertically pull-resistant connection. The connecting parts are in particular configured as the connecting parts described above. The connecting parts are part of the connecting interface 5. Preferably, all connecting parts are part of the protective hood and not part of the power tool.

[0084] Preferably, the cover unit 70 has a bottom element 49, which is not particularly part of the power tool. Preferably, the power tool is particularly releasably connected to the bottom element by means of clamping or screw elements. The power tool is clamped, fastened or screwed, for example by its mounting surface, to the bottom plate or bottom element 49. Optionally, the power tool is a hand-held tool, for example a long-neck sander, which is advantageously clamped and / or fastened to the bottom plate.

[0085] Optionally, the base element 49, in particular configured as a base plate, has a tool receiving area that can be flexibly adapted to the power tool to be attached. For example, the tool receiving area has a number of recesses 49.1 into which mounting elements for the power tool to be attached are introduced and fixed (e.g. via screws and / or form-fitting). Advantageously, the mounting elements can be arranged in various recesses in order to adapt the tool receiving area to the respective tool to be attached.

[0086] 3 shows a stack unit 40 having a transport unit 60, a lower system box 30A, and an upper system box 30B. The transport unit 60 rests on the lower system box 30A, and the upper system box 30B rests on the transport unit 60, so that the transport unit 60, the lower system box 30A, and the upper system box 30B together form a vertical stack. The connection interface 5 has a lower connection interface 5A that provides a lower, releasable, vertically pull-resistant connection to the lower system box 30A, and an upper connection interface 5A that provides an upper, releasable, vertically pull-resistant connection to the upper system box 30B.

[0087] In a vertical stack, the cover structures 50 are advantageously oriented vertically with their cover structure lower surfaces 27. In particular, the first cover structure short side 25 and the second cover structure short side 26 are oriented horizontally, i.e., in particular perpendicular to the stacking direction 46. For example, the first cover structure short side 25 rests on the system box upper surface of the lower system box 30A, and the second cover structure short side 26 rests on the system box lower surface of the upper system box 30B.

Claims

1. In a sawing device (10), in particular a circular saw or a miter saw, A saw unit (20) having a saw blade (1) and a support structure (2), The saw unit (20) can be mounted on a support base with its underside (3) and has a workpiece table (4) on which a workpiece (6) can be placed while the workpiece (6) is sawed by the saw device (10). The saw device (10) has a connection interface (5) through which a releasable, vertically pull-resistant connection can be formed with at least one system box (30), thereby forming a vertical stack together with the at least one system box (30). The saw device (10) occupies a transport orientation in the vertical stack, and in the transport orientation, the workpiece table (4) is oriented vertically with a loading plane.

2. 2. The saw apparatus (10) of claim 1, further comprising a cover structure (50) attachable to the saw unit (20) to transfer the saw apparatus (10) to a transport configuration, in which the saw apparatus (10) can be connected to at least one system box (30) via a connection interface (5) to form a vertical stack together with the at least one system box (30).

3. 3. The saw device (10) of claim 2, wherein the cover structure (50) has a connection interface (5).

4. 4. The saw device (10) according to claim 2 or 3, wherein the cover structure (50) in the transport configuration defines an internal space (28) that is closed in particular dust-tight around the saw device (10), and in which the saw blade (1) and / or the workpiece support table (4) are arranged.

5. 4. The sawing device (10) of claim 2 or 3, wherein the cover structure (50) comprises a cover hood.

6. 4. The saw device (10) according to claim 2 or 3, wherein the saw device (10) in transport configuration has a rectangular parallelepiped outer housing formed partly or completely by a cover structure (50).

7. 7. The saw device (10) of claim 6, wherein, in the transport configuration, one side of the rectangular outer housing is formed by the underside (3) of the support structure (2), and all other sides of the outer housing are formed by the cover structure (50).

8. 4. The saw device (10) according to claim 2 or 3, wherein the cover structure (50) has a workpiece placement portion (7), and the saw device (10) can be transferred to a working configuration, in which the workpiece placement portion (7) provides an additional placement table (11), which, together with the workpiece placement table (4), is used to provide an overall workpiece placement surface on which the workpiece (6) can be placed in a particularly planar manner while being sawed by the saw device (10).

9. 9. The saw device (10) of claim 8, wherein in the working configuration, the saw unit (20) is positioned with its underside (3) on the support (12), and the workpiece placement portion (7) is arranged next to the saw unit (20), so that the additional placement table (11) is arranged at the same height as the workpiece placement table (4).

10. 9. The sawing device (10) of claim 8, wherein the cover structure (50) is constructed in a multi-piece configuration, and the workpiece placement portion (7) is removable from the remainder of the cover structure, thereby providing a working configuration.

11. 4. A saw device (10) as described in claim 2 or 3, wherein the cover structure (50) has an inner connecting structure (9) via which the saw unit (20) is suspended on the cover structure (50) when the saw device (10) is in the transport orientation.

12. 12. The saw device (10) according to claim 11, wherein the cover structure (50) has a carrying grip (8), which is arranged on the outside of the cover structure (50) in the region of the inner connecting structure (9).

13. A stack unit (40), A saw device (10) according to claim 1 or 2, and a lower system box (30A) and / or an upper system box (30B), a stack unit (40) in which the saw device (10) is placed on a lower system box (30A) and / or the upper system box (30B) is placed on the saw device (10), so that the saw device (10) and the lower system box (30A) and / or the upper system box (30B) together form a vertical stack, the connection interface (5) having a lower connection interface (5A) and / or an upper connection interface (5B), the lower connection interface (5A) providing a lower, releasable, vertically pull-resistant connection to the lower system box (30A), and the upper connection interface (5B) providing an upper, releasable, vertically pull-resistant connection to the upper system box (30B), the saw devices (10) occupying a transport orientation in the vertical stack, in which the workpiece placement table (4) is oriented vertically with a placement plane.

14. A method for handling a sawing device (10) according to claim 1 or 2, comprising: forming a releasable, vertically tension-resistant connection between the saw device (10) and at least one system box (30), so that the saw device (10) and the at least one system box (30) form a vertical stack, the saw device (10) occupying a transport orientation in the vertical stack, in which the workpiece placement table (4) is oriented vertically with a placement plane.

15. In the cover unit (70) A cover structure (50) configured as a protective hood for housing a power tool, in particular a circular saw or a miter saw, The protective hood has a connection interface (5) that allows a releasable, vertically pull-resistant connection to be formed with one or more system boxes (30), so that the cover unit (70) can form a vertical stack together with one or more system boxes (30) in a transport configuration in which the protective hood houses power tools.

16. 16. The cover unit (70) of claim 15, wherein the connecting interface (5) comprises a lower connecting interface (5A) and / or an upper connecting interface (5B), the lower connecting interface (5A) being capable of forming a lower, releasable, vertically pull-resistant connection to the lower system box (30A) when the protective hood is placed on the lower system box (30A), and the upper connecting interface (5B) being capable of forming an upper, releasable, vertically pull-resistant connection to the upper system box (30B) when the upper system box (30B) is placed on the protective hood.

17. In the transport unit (60), a cover unit (70) according to claim 15 or 16 and a power tool housed in a protective hood, The transport unit (60) has connecting portions that form releasable, vertically pull-resistant connections, in particular a lower, releasable, vertically pull-resistant connection and / or an upper, releasable, vertically pull-resistant connection, the connecting portions being part of the connecting interface (5), and the entire connecting portion being part of the protective hood and not part of the power tool, the transport unit (60).

18. In the stack unit (40), The transport unit (60) according to claim 17, a lower system box (30A), and an upper system box (30B), a stack unit (40) having a transport unit (60) mounted on a lower system box (30A) and an upper system box (30B) mounted on the transport unit (60), such that the transport unit (60), the lower system box (30A) and the upper system box (30B) together form a vertical stack, the connection interface (5) having a lower connection interface (5A) and an upper connection interface (5A), the lower connection interface (5A) providing a lower, releasable, vertically pull-resistant connection to the lower system box (30A) and the upper connection interface (5A) providing an upper, releasable, pull-resistant connection to the upper system box (30B).

19. 17. A method for handling a cover unit (70) according to claim 15 or 16, comprising: forming a releasable, vertically pull-resistant connection of the protective hood with at least one system box (30), thereby forming a vertical stack.

20. A method for handling a transport unit (60) according to claim 17, comprising: forming a releasable, vertically pull-resistant connection of the protective hood with at least one system box (30), thereby forming a vertical stack.

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