Arrangement for fastening benchtop machine tools

Abstract

The invention relates to an arrangement for fastening benchtop machine tools to a worktop, comprising two support devices (1), a clamping device (2) and two mounting brackets (3), wherein the mounting brackets (3) are each connected to the two support devices (1). The clamping device (2) is designed to clamp the arrangement to a tabletop, in particular to the edge of a worktop. The mounting brackets (3) are connected to the support devices (1) via adjusting devices (4) such that the distance between the mounting brackets (3) can be adjusted, in particular continuously, wherein the mounting brackets (3) have guide means (5) for receiving and, in particular continuously, positioning fastening means for fixing a benchtop machine tool.

Description

[0001] 64579

[0002] Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11 , 1100 Vienna (AT)

[0003] Arrangement for mounting table machine tools

[0004] The invention relates to an arrangement for mounting table-top machine tools.

[0005] Benchtop machine tools are typically used in workshops for material processing. Examples include vises, bench grinders, drill presses, and similar equipment. To improve safety, efficiency, and stability, benchtop machine tools can usually be fixed to work surfaces. For this purpose, benchtop machine tools have mounting points, usually in the form of holes or slots, on their base. Depending on the type and size of the machine tool, a varying number of mounting points may be provided at different intervals. Therefore, to secure a benchtop machine tool to a work surface, mounting points must be created in the work surface, the relative positions of which correspond to the positioning or configuration of the machine tool's mounting points.For this purpose, the work surface is usually provided with mounting holes, for example, drill holes. If the benchtop machine tool is then aligned on the work surface so that the fastening points are positioned over the mounting points, the benchtop machine tool can be fixed to the work surface. 64579.

[0006] Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT) In workshops or workplaces, it can happen that benchtop machine tools are not intended for permanent installation. This can be the case, for example, in small workshops where only a few suitable locations for setting up benchtop machine tools are available. In this or similar situations, different benchtop machine tools need to be fixed to the same spot on the work surface for different tasks. For this to work, the spot must have suitable mounting points, such as holes, for each benchtop machine. Such a large number of holes in the work surface is not only unsightly but also a disadvantage during work, as scrap, small workpieces, or small tools can fall into them when they are not being used to mount a benchtop machine.

[0007] Furthermore, scenarios are conceivable in which the work surface should not be changed. For example, if DIY enthusiasts need to operate their benchtop power tools temporarily on dining tables or similar surfaces. In these cases, benchtop power tools are usually placed on the work surface without being fixed in place, compromising safety and stability.

[0008] The object of the invention is therefore to improve work efficiency, safety and stability in the operation of table-top machine tools.

[0009] To solve this problem, an arrangement is provided which, on the one hand, has mounting points that can be adapted to the respective table machine tool to be attached and operated, and which, on the other hand, can be easily and without damage fixed to work surfaces.

[0010] Disclosed is an arrangement for attaching benchtop machine tools to a work surface. The arrangement preferably comprises two support devices, a clamping device, and two mounting brackets. Preferably, the mounting brackets are each connected to both support devices. Preferably, the clamping device is configured to clamp the arrangement to a surface, in particular to the edge of a work surface. 64579

[0011] Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT) Preferably, the mounting brackets may be connected to the support devices via adjustment devices, so that the distance between the mounting brackets is adjustable, in particular continuously. Optionally, the adjustment devices may include clamping elements and / or be designed to accommodate clamping elements. Optionally, the clamping elements may be designed to connect the mounting brackets to the support devices, in particular to the adjustment devices.

[0012] Preferably, the mounting brackets may have guide devices for receiving and, in particular, stepless positioning of fastening means for fixing a table machine tool.

[0013] If necessary, the support devices and the mounting brackets may form an adaptively adjustable frame with mounting points.

[0014] Tabletop machine tools may optionally have mounting points. Mounting points can be formed, for example, by holes, slots, elongated holes, or other receptacles for fasteners. The number of mounting points may vary depending on the type and size of the tabletop machine tool. Preferably, tabletop machine tools may have any number of mounting points, particularly preferably two, three, or four. The arrangement of the mounting points may vary for different tabletop machine tools. Each tabletop machine tool may define its own specific pattern of mounting points.

[0015] If necessary, a benchtop machine tool can define a specific configuration of fastening points.

[0016] Optionally, the positions of the mounting points can be adapted to the configuration of the mounting points of any benchtop machine tool by means of the adaptively adjustable frame. Preferably, mounting points can be provided whose positions can be adapted to the positions of the mounting points of the benchtop machine tool to be attached. Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT) Preferably, the arrangement can provide any number of mounting points, particularly preferably two, three, or four mounting points.

[0017] Preferably, the position of the mounting points can be adjusted so that the mounting points define a pattern that corresponds to the pattern of the mounting points of the respective table machine tool.

[0018] Optionally, the clamping device may be designed to be at least partially C-shaped and configured to grip the edge of a plate. One leg of the C-shape may preferably comprise the first of the two support devices. The second leg may preferably be configured to be positioned on the other side of the plate.

[0019] Optionally, the distance between the legs of the C-shape may be adjustable by means of a clamping width adjustment device. Optionally, the C-shape, preferably the section of the C-shape connecting the two legs, may be formed in multiple parts, preferably in two parts, wherein a first part, preferably integrally, is connected to one leg and a second part, preferably integrally, is connected to the other leg. The two parts may be arranged parallel to each other and connected, preferably by screws. The two parts may be linearly displaceable relative to each other, preferably when the screw connection is loosened, to adjust the distance between the legs. The screw connection may be tightened to form a fixed C-shape.

[0020] The clamping device may optionally include a clamping bar. The clamping bar may be arranged between the legs of the C-shape. To form a clamp, the clamping bar may be movable between the legs by means of at least one adjusting device.

[0021] If necessary, the adjusting device may include a screw assembly with a rotary bearing and a thread. It may be provided that the thread engages the second leg and the rotary bearing is connected to the clamping beam. (Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT))

[0022] Optionally, the support devices may each have a bearing surface for resting on a plate. Preferably, the clamping device may face the bearing surface of the first support device. Preferably, the retaining webs may each be arranged on a surface of the support device that faces away from the bearing surface.

[0023] If necessary, the second support device may include leveling devices outside of the adjustment devices, in particular at its ends, for adjusting the support height of the second support device (1).

[0024] If necessary, the adjusting devices of the first support device may have wedge-shaped spacers that slope downwards towards the second support device.

[0025] Optionally, an angle can be provided for the wedge-shaped spacer, which is, for example, 1° - 5°, preferably 2° - 4°, preferably 2°. Instead of a wedge-shaped spacer, the inclined position of the mounting bracket can be achieved by any suitable means, such as an inclined opening.

[0026] If necessary, the inclination of the mounting brackets can be 1° - 5°, preferably 2° - 4°, preferably 2° to the working surface of the worktop.

[0027] If necessary, an inclination of the support bracket relative to the worktop can cause the second support device to be pressed against the worktop by tightening the clamping devices of the adjustment device of the first support device, thereby improving the stability of the connection.

[0028] If necessary, it may be provided that the mounting brackets are attached to the adjustment devices with clamping devices, whereby the clamping devices in their tensioned position press the mounting brackets towards or against the chamfered surfaces of the spacers and clamp the mounting brackets between the support devices.

[0029] If necessary, the clamping device may be provided with a stop surface for placement on the vertical edge of a plate.

[0030] If necessary, it may be provided that contact surfaces of the arrangement intended to come into contact with the plate, in particular the bearing surfaces of the support devices and / or the surface of the clamping beam facing away from the adjusting means and / or the stop surface, have elastic and / or anti-slip pads, preferably rubber pads.

[0031] If necessary, it may be provided that the contact surfaces of the arrangement, in particular the bearing surfaces and / or the surface of the clamping beam facing away from the adjusting means and / or the stop surface, have recesses for the positive locking reception of, preferably elastic, studs of the supports for fastening the supports to the contact surfaces of the arrangement, and that the studs particularly preferably have an excess at least in sections compared to the recesses.

[0032] Optionally, two adjusting devices may be provided, each comprising threaded rods with adjusting levers. Preferably, the adjusting levers may be arranged transversely to the longitudinal direction of the threaded rods and at one end of the threaded rods. Preferably, the adjusting levers may have two ends with stops and be displaceable between the stops transversely to the longitudinal direction of the threaded rods.

[0033] Optionally, the actuating lever of one actuating device may be shifted towards the other actuating device when both are in the tensioned position. This preferably results in the ends of the two actuating levers overlapping. Preferably, a fixing means, in particular a hook-and-loop fastener strip, placed around both actuating levers, connects the two actuating levers to each other, so that the actuating devices hold each other in their tensioned position.

[0034] Optionally, a mounting bracket may be provided, which is connected to the second support device via a connecting web. Preferably, the mounting bracket may be designed to be attached to a different edge of the plate.

[0035] Optionally, a handrail can be provided to allow a person to hold onto it while operating a benchtop machine tool. The handrail can preferably be detachably fixed to the second support device.

[0036] The following describes an embodiment of the invention using a practical application example.

[0037] For example, a person wants to use a vise securely and stably to saw a workpiece. They pick up the assembly and position it at an edge of the work surface. They place the two support brackets on the work surface and then clamp the assembly to the edge of the work surface using the clamping device. The remaining components of the assembly, especially the support brackets and the second support bracket, are still movably connected. The person then picks up the vise, which has a base with three mounting points in the form of holes through the base and its surface. The holes have a specific configuration, for example, a triangular pattern, with two holes on the left side of the base and one hole on the right side.The person adjusts the mounting brackets so that they can place the vise on them. They then align the vise so that the mounting points are positioned over the mounting points. For example, the two left mounting points of the vise will be positioned over the mounting points of the left mounting bracket. Using fasteners, such as screws, the person secures the vise to the left mounting bracket via the mounting points on the left side. Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT)The person then adjusts the right-hand mounting bracket using the adjustment mechanisms of the support devices so that its mounting point lies below the single right-hand mounting point of the vise. The vise is then attached to the right-hand mounting bracket using a fastener via the right-hand mounting point and bracket. Finally, the person firmly connects the mounting brackets to the support devices using the adjustment mechanisms. This makes the entire assembly a rigid structure. To further secure the assembly to the work surface, the person can optionally attach an additional mounting clamp to another edge of the work surface and connect the assembly to the clamp using a connecting link. This provides additional security, particularly against rotation.

[0038] If the mounting clamp is not needed, the connecting bridge can be stored inside the second support device.

[0039] To allow the user to stabilize themselves when working with material using one hand, for example when sawing, a handle can be provided for the setup. The handle can be attached to the setup, preferably to the second support. With the handle attached, the user can hold onto it while sawing, thus stabilizing themselves and applying force more effectively and efficiently.

[0040] After sawing, the person wants to drill holes in their workpiece using their drill press. The drill press has a base with four mounting holes arranged in a trapezoidal pattern. The two front mounting points are further apart than the two rear ones. The person can detach the vise from the stand and set it aside. They then place the drill press onto the stand's support brackets. The distance between the support brackets is adjustable using the adjustment mechanisms of the supports. The support brackets can be adjusted so that they are angled relative to each other.To provide a trapezoidal pattern of mounting points that matches the trapezoidal pattern of the attachment points (Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT)), the mounting brackets can be adjusted so that they have a different spacing between them in the area of ​​the first support device than in the area of ​​the second support device. Once the attachment points are positioned over the mounting points, the user can fix the drill press to the mounting brackets of the assembly. The mounting brackets can then also be fixed to the support devices to form a rigid assembly.

[0041] For some benchtop machine tools, it can be advantageous to align them horizontally, especially if, for example, the chosen work surface is not level. For this purpose, the arrangement features a leveling device at each end of the second support. These leveling devices allow the support height of the second support to be adjusted. In other words, the distance between the support brackets and the work surface can be adjusted using the leveling devices. The leveling devices can be operated independently of each other, allowing the support brackets to have different distances from the work surface. This compensates for unevenness or tilting of the work surface.

[0042] The person can adjust the arrangement using the leveling devices so that the pillar drill is as vertical as possible, even if the work surface under the arrangement is not level.

[0043] The contact surfaces of the arrangement with the worktop are elastic and / or slip-resistant, preferably rubberized. This offers the advantage of protecting sensitive worktops and work surfaces from damage caused by the arrangement. Furthermore, such contact surfaces also dampen the transmission of vibrations and sound to the worktop. Electrically operated benchtop machine tools, in particular, are known to generate vibrations and thus often lead to increased noise levels. The associated disadvantages can be avoided or at least mitigated with elastic and / or slip-resistant, preferably rubberized, contact surfaces. (Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT))

[0044] The invention will then be further described using the figures.

[0045] They show:

[0046] Fig. 1 shows a schematic side view of an embodiment of an arrangement with a vise mounted on it;

[0047] Fig. 2 shows a schematic representation of an embodiment of an arrangement in a top view;

[0048] Fig. 3 shows a schematic side view detail of a first support device with a clamping device of an embodiment of an arrangement;

[0049] Fig. 4 shows a schematic detail representation of a second support device of an embodiment of an arrangement.

[0050] Unless otherwise specified, the reference numerals correspond to the following components: support device 1, clamping device 2, mounting bracket 3, adjusting device 4, guide device 5, mounting point 6, clamping beam 7, adjusting means 8, rotary bearing device 9, support surface 10, leveling device 11, spacer 12, stop surface 13, support 14, threaded rod 15, adjusting lever 16, fixing means 17, mounting clamp 18, connecting bridge 19, handle 20

[0051] Fig. 1 shows a schematic side view of an embodiment of an arrangement with a vise mounted on it. A worktop is partially shown in the figure, hatched. An arrangement is attached to the worktop, comprising two support devices 1, a clamping device 2, and mounting brackets 3.

[0052] The clamping device 2 is arranged at the edge of the worktop and clamped to it. For clamping, the clamping device 2 has a clamping bar 7 and an adjusting element 8, which are connected to each other via a rotary bearing device 9. According to the illustrated embodiment, the adjusting element 8 comprises a threaded rod 15 and an adjusting lever 16. The clamping device 2 has a support surface 10 and a stop surface 13. The support surface 13 of the clamping device 2 is also the support surface of the first support device 1, shown on the left in the illustration.

[0053] In all embodiments, the clamping device 2 can include a clamping width adjustment device (not shown) with which the distance between the legs of the C-shaped clamping device 2 can be adjusted. The clamping width adjustment device can, for example, be located in the area of ​​the stop surface 13. For this purpose, the vertical part of the clamping device 2 shown in the illustration can have two parallel parts of the clamping width adjustment device, one part being connected to the upper leg or to the first support device, and the second part being connected to the second support device. The two parts can then be moved parallel to each other, for example, vertically in the illustration. The clamping width adjustment device can also have a linear guide for this purpose.Furthermore, the clamping width adjustment device can also include locking means with which the clamping device 2 can be locked in the desired position of the clamping width adjustment device, i.e. with the desired distance between the legs of the C-shape.

[0054] At the other end of the arrangement, on the right in the illustration, a second support device 1 is provided, which rests on the work surface with a support surface 10. The second support device 1 has leveling devices 11.

[0055] The contact surfaces of the arrangement with the worktop, in particular the support surfaces 10, the stop surface and the contact surface of the clamping bar 7, have a support 14.

[0056] In all embodiments, the supports 14 can be provided with knobs. It can be provided that those surfaces of the arrangement that are to come into contact with a worktop have recesses. The recesses can, for example, be holes. The recesses can be designed to receive the knobs of the supports 14 in a form-fitting manner in order to secure the supports 14 to the worktop.

[0057] Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT) to attach the respective surfaces of the arrangement. Optionally, the studs may be designed to be elastic and / or have an excess of material relative to the recesses. Due to this excess of material relative to the receiving recesses, the studs are compressed during positive engagement, so that, as a result of their elasticity, they can exert a force on the side walls of the recesses, which contributes to attaching the supports 14 to the arrangement. The studs of the supports 14 may comprise an elastic and / or anti-slip material, preferably rubber.

[0058] In all embodiments, an adhesive bond can be provided to connect the supports 14 to the arrangement. The adhesive bond can preferably be provided as an alternative or additional means to the studs for connecting the supports 14 to the arrangement.

[0059] Mounting brackets 3 are arranged on the support devices 1 of the assembly. The mounting brackets 3 are connected to the support devices 1 via adjustment devices 4 (not shown). The mounting brackets 3 connect the two support devices to each other.

[0060] The mounting brackets 3 have mounting points 6 where the vise is fixed via its mounting points using fasteners.

[0061] Fig. 2 shows a schematic representation of an exemplary embodiment of an arrangement in a top view. For the sake of clarity, this illustration omits the depiction of a table-top machine tool mounted on the arrangement.

[0062] As shown in the illustration, the arrangement with its clamping device 2 is clamped to the left edge of the worktop. The first support device 1 is positioned at the left edge of the worktop. The second support device 1 with its leveling devices 11 is arranged on the worktop. The second support device 1 is connected to a mounting bracket 18 via a connecting web 19. The mounting bracket 18 clamps the arrangement to a second edge of the worktop via the connecting web 19. The distance of the 64579

[0063] Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT) The mounting bracket 18 is variably positioned away from the support device 1. In the illustrated embodiment, a slot is provided in the connecting web 19 for adjusting the distance of the mounting bracket 18 from the support device 1.

[0064] The two support devices 1 have adjustment devices 4. Two mounting brackets 3 are provided, which are connected to the support devices 1 via the adjustment devices 4. In the illustration, the adjustment devices 4 comprise elongated holes and connecting elements. Three possible positions for the mounting brackets 3 on the support devices 1 are shown to illustrate the adaptability of the frame formed by the support devices 1 and the mounting brackets 3. Solid lines show a parallel alignment of the mounting brackets 3 to each other. Dashed lines show two of many possible settings. In these positions, the support devices 1 and the mounting brackets 3 form a trapezoidal frame.The distance between the mounting brackets 3 can be freely selected via the adjustment devices 4 and can also vary in the area of ​​the mounting brackets 3 between the support devices 1.

[0065] The mounting brackets 3 each comprise a guide element 5 for providing mounting points 6. In the illustrated embodiment, the guide elements 5 are formed by elongated holes along which connecting elements can be arranged at any desired position to connect a benchtop machine tool to the mounting brackets 3 via its mounting points. The position of the mounting points 6 on the mounting brackets 3 is thus freely selectable and can be adapted to the specific configuration of mounting points on a benchtop machine tool.

[0066] Furthermore, a handrail 20 is arranged on the second support device 1, which a person can hold onto when using a table machine tool mounted on the device. 64579

[0067] Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11 , 1100 Vienna (AT) Fig. 3 shows a schematic side view detail of a first support device 1 with a clamping device 2 of an embodiment of an arrangement.

[0068] The clamping device 2 according to Fig. 3 can also include a (not shown) clamping width adjustment device.

[0069] The clamping device 2 shown has a C-shaped section that grips the edge of a worktop. A clamping bar 7 is arranged between the legs of the C-shape and is connected to the lower of the two legs via an adjusting element 8. The adjusting element 8 comprises a rotary bearing 9, a threaded rod 15, and an adjusting lever 16. The C-shape has a damping and / or anti-slip layer on its inner surface. This damping and / or anti-slip layer is provided on the upper leg, which simultaneously forms the bearing surface 10 of the support device 1, and on the stop surface 13, which is arranged vertically on the edge of the worktop. The upper surface of the clamping bar 7 also has a damping and / or anti-slip layer. According to this embodiment, the damping and / or anti-slip layers are formed by elastic and / or anti-slip pads 14.

[0070] The first support device 1 shown comprises an adjusting device 4 and a spacer 12. The spacer 12 is wedge-shaped and slopes towards the worktop. A mounting bracket 3 is clamped to the support device 1 via a clamping device. Due to the wedge-shaped spacer 12, the mounting bracket 3 is inclined towards the worktop.

[0071] In all embodiments, an angle of, for example, 2° can be provided for the wedge-shaped spacer 12. Instead of a wedge-shaped spacer 12, the inclined position of the mounting web 3 can be achieved by any suitable means, such as an inclined opening.

[0072] In all embodiments, an inclination of the support bracket 3 relative to the work surface can cause the second support device 1 to be 64579

[0073] Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11 , 1100 Vienna (AT) Tightening the clamping devices of the adjusting device 4 of the first support device 1 is pressed against the work surface, thereby improving the stability of the connection.

[0074] Other alternatives for achieving tension on the support brackets 3 between the support devices 1 include, for example, support brackets 3 that are curved towards the work surface or a greater support height for the second support device 1 compared to the first support device 1. All these possibilities can cause the second support device 1 to be pressed against the work surface when the clamping devices of the first support device are tightened and the support brackets are thereby tensioned.

[0075] The inclination can be, for example, 1° - 5°, 2° - 4°, preferably 2° to the working surface of the worktop.

[0076] Fig. 4 shows a schematic detail representation of a second support device 1 of an embodiment of an arrangement.

[0077] The support device 1 is shown in a sectional view. The support device 1 has a base plate on the underside of which an elastic and / or anti-slip support 14 is arranged, which comprises the support surface 10 of the support device 1.

[0078] At each end of the support device 1, a leveling device 11 is provided. According to this embodiment, the leveling device 11 comprises threaded rods that are screwed to the base plate. Each leveling device 11 includes two knurled nuts arranged one above the other on the threaded rods. The lower knurled nut of each leveling device 11 serves as a support for a cross member of the support device, which extends between the threaded rods above the base plate. By turning the lower knurled nuts, the distance of the cross member from the base plate can be adjusted. The support height of the second support device 1 can be adjusted by means of the leveling devices 11. The second knurled nuts serve to fix the cross member in place.

[0079] Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11 , 1100 Vienna (AT) of the support device 1, by clamping it between the two knurled nuts of the respective leveling device 11.

[0080] The crossbeam includes adjustment devices 4 of the second support device 1 in the form of elongated recesses through which clamping elements (not shown) for connecting the support device to mounting webs 3 (not shown) can be guided. The distance between the clamping elements and, consequently, between the mounting webs 3 (both not shown), is adjustable via the elongated recesses of the adjustment devices 4.

[0081] Within the second support device 1, a connecting web 19 is arranged between the base plate and the cross member. According to this embodiment, the connecting web 19 has a slot in the form of an elongated hole. Due to this slot, the connecting web 19 can be positioned laterally relative to the base plate to connect the support device 1 to a mounting bracket 18 (not shown). Guide pins are arranged in the base plate between the threaded rods. These guide pins can engage in the slot of the connecting web 19.

[0082] This allows them to improve the stability of the connecting web 19 on the base plate, even in a displaced arrangement for fastening with a fastening clamp 18.

Claims

64579 Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT) Patent claims 1. Arrangement for attaching table-top machine tools to a work surface comprising: - two support devices (1), - a clamping device (2) and - two mounting brackets (3), -whereby the support struts (3) are each connected to both support devices (1), - wherein the clamping device (2) is configured to clamp the arrangement to a plate, in particular to the edge of a worktop, characterized in that - that the mounting brackets (3) are connected to the support devices (1) via adjustment devices (4) so ​​that the distance between the mounting brackets (3) is adjustable, in particular steplessly, - and that the mounting brackets (3) have guide devices (5) for receiving and, in particular stepless, positioning of fastening means for fixing a table machine tool.

2. Arrangement according to claim 1, characterized in that the support devices (1) and the mounting brackets (3) form an adaptively adjustable frame with mounting points (6), - where a table-top machine tool defines a specific configuration of fastening points, - and wherein the positions of the mounting points (6) can be individually adapted to the configuration of mounting points of a table machine tool by means of the adaptively adaptable frame.

3. Arrangement according to one of claims 1 or 2, characterized in that the clamping device (2) is at least partially C-shaped and is configured to grip the edge of a plate, wherein one leg of the C-shape comprises the first of the two support devices (1) and 64579 Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11 , 1100 Vienna (AT) if necessary, that the distance between the legs of the C-shape is adjustable with a clamping width adjustment device.

4. Arrangement according to claim 3, characterized in that the clamping device (2) comprises a clamping bar (7) which is arranged between the legs of the C-shape and can be displaced between the legs with at least one adjusting means (8) to form a clamp.

5. Arrangement according to claim 4, characterized in that the adjusting means (8) comprises a screw arrangement with a rotary bearing device (9) and a thread, wherein the thread engages the second leg and the rotary bearing device (9) is connected to the clamping beam (7).

6. Arrangement according to one of claims 1 to 5, characterized in that the support devices (1) each have a support surface (10) for support on a plate, wherein the clamping device (2) faces the support surface (10) of the first support device (1) and wherein the retaining webs (3) are each arranged on a surface of the support device (1) that faces away from the support surface (10).

7. Arrangement according to one of claims 1 to 6, characterized in that the second support device (1) comprises leveling devices (11) for adjusting the support height of the second support device (1) outside of the adjustment devices (4), in particular at its ends.

8. Arrangement according to one of claims 1 to 7, characterized in that the adjusting devices (4) of the first support device (1) have wedge-shaped spacers (12) which slope down towards the second support device (1).

9. Arrangement according to claim 8, characterized in that the retaining webs (3) are attached to the adjusting devices by clamping means, wherein the clamping means, in their clamped position, press the retaining webs (3) towards or against the chamfered surfaces of the spacers (12) and clamp the retaining webs between the support devices (1). Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11 , 1100 Vienna (AT) 10. Arrangement according to one of claims 1 to 9, characterized in that the clamping device (2) has a stop surface (13) for arrangement on the vertical edge of a plate.

11. Arrangement according to one of claims 1 to 10, characterized in that contact surfaces of the arrangement which are intended to come into contact with the plate, in particular the bearing surfaces (10) of the support devices (1) and / or the surface of the clamping beam (7) facing away from the adjusting means (8) and / or the stop surface (13), have elastic and / or anti-slip pads (14), wherein preferably the contact surfaces of the arrangement, in particular the bearing surfaces (10) and / or the surface of the clamping beam (7) facing away from the adjusting means (8) and / or the stop surface (13) have recesses for the positive-locking reception of studs of the pads (14) for fastening the pads (14) to the contact surfaces of the arrangement and the studs particularly preferably have an excess at least in sections compared to the recesses.

12. Arrangement according to one of claims 4 to 11, characterized in that two adjusting means (8) are provided, which have threaded rods (15) with adjusting levers (16), wherein the adjusting levers (16) are arranged transversely to the longitudinal direction of the threaded rods (15) and at one end of the threaded rods (15), wherein the adjusting levers (16) have two ends with stops and are displaceable between the stops transversely to the longitudinal direction of the threaded rods (15).

13. Arrangement according to claim 12, characterized in that the actuating lever (16) of one actuating means (8) is displaced in the tensioned position of the actuating means (8) in the direction of the other actuating means (8), such that the two actuating levers (16) overlap at their ends, wherein a fixing means (17), in particular a hook and loop fastener strip, which is placed around both actuating levers (16), connects the two actuating levers (16) to each other, so that the actuating means (8) hold each other in their tensioned position. Stefan Schaub, Otto-Probst-Straße 32 / A3 / 11, 1100 Vienna (AT) 14. Arrangement according to any one of claims 1 to 13, characterized in that a fastening clamp (18) is provided which is connected to the second support device (1) via a connecting web (19) and which is designed to be attached to another edge of the plate.

15. Arrangement according to one of claims 1 to 14, characterized in that a handhold (20) is provided, which a person can hold onto while operating a table machine tool, wherein the handhold (20) is in particular detachably fixed to the second support device (1 ).

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