Support for supporting a workpiece, in particular during machining by means of a hand-held tool, supporting cushion, carrier mat, and use

Abstract

The invention relates to a support (10) for supporting a workpiece. The workpiece can be supported in particular during machining by means of a hand-held tool. The support (10) comprises a carrier mat (12), which is non-rigid at least in some sections, and at least one supporting cushion (20). The at least one supporting cushion (20) is fastened to the carrier mat (12). In addition, the invention relates to a supporting cushion (20) for a support (10). The invention also relates to a carrier mat (12) for a support (10). And the invention relates to a use of a support (10) for supporting a workpiece, the use comprising transferring the support (10) from a transport state into a use state and / or transferring the support from a use state into a transport state. In the use state, the support (10) is spread out flat, and in the transport state, the support is compacted in comparison with the use state.

Description

[0001] FESTOOL GMBH Munich, August 5, 2025

[0002] Our reference number: F09972WO / AS

[0003] Festool GmbH

[0004] Wertstraße 20, 73240 Wendlingen, Germany

[0005] Support for placing a workpiece, especially during processing using a handheld tool, support pad, backing mat and use

[0006] The invention relates to a support for placing a workpiece. In particular, the workpiece can be placed on the support during machining using a handheld tool.

[0007] The invention also relates to a support cushion for such a base.

[0008] The invention also relates to a carrier mat for such a substrate.

[0009] Furthermore, the invention relates to the use of a support for placing a workpiece on it. In particular, the workpiece can be placed on it during machining using a handheld tool.

[0010] Workpieces often need to be processed in environments not specifically designed for such processing. In other words, workpieces frequently need to be processed outside of a workshop or factory. For example, it is common for workpieces to need to be processed on a construction site and / or in a living space. This might be the case if the workpiece is a furniture component, such as a kitchen cabinet part, an interior door, or a panel. In such cases, the surrounding area must be protected from unwanted influences resulting from the processing of the workpiece. In particular, damage or impairment of surrounding surfaces, such as scratches, must be avoided.

[0011] AS: TOP. Furthermore, it is necessary to protect the workpiece being processed from unwanted damage or impairment.

[0012] The object of the present invention is therefore to improve the processing of workpieces outside a workshop or factory in such a way that both the workpiece and the environment in which the workpiece is processed are protected from unwanted impairments.

[0013] The problem is solved by a support for placing a workpiece. In particular, the workpiece can be placed on the support during machining using a handheld tool. The support comprises a backing mat that is at least partially flexible and at least one support pad. The at least one support pad is attached to the backing mat. Such a support can therefore be placed between the workpiece being machined and an element of the environment in which the workpiece is to be machined. As already mentioned, the environment is not specifically designed for machining workpieces. For example, the support can be placed between a floor and a workpiece. It is also possible to place the support between a table surface, or more generally, a piece of furniture, and a workpiece.Similarly, the mat can be placed between the seat of a bench or chair and a workpiece. This protects the workpiece from unwanted damage, such as scratches or dents. It can also cause unwanted soiling. Furthermore, the mat protects the surrounding area from damage resulting from the workpiece being worked on. This applies particularly to the aforementioned floor and furniture on which the mat can be placed. The examples given for damage to the workpiece also apply to the surrounding area.The fact that the support comprises both a backing mat and at least one support pad means that the backing mat and the at least one support pad can be selected independently of each other, at least to a certain extent. Thus, the support pad can be specifically designed to contact the workpiece, while the backing mat can be specifically designed to contact an element of the environment. In this way, the protection of the workpiece and the environment from unwanted damage is further enhanced. In this context, it is also possible to make at least one support pad interchangeable with the backing mat. Consequently, the adaptability of the support to different workpieces and / or different environments is improved. In the context of the present invention, the at least one support pad can also be referred to as a support pad or simply as a pad.Because the backing mat is at least partially flexible, it can be adapted relatively easily to its surroundings. The mat can therefore be placed even on uneven surfaces. Furthermore, this facilitates transport and handling, as the backing mat can be deformed as needed, for example, by folding, bending, or rolling it up.

[0014] Within the scope of the present invention, machining a workpiece includes any modification of the workpiece itself, as well as any modification of the workpiece's relationship to other workpieces. Machining particularly includes mechanical processing of the workpiece, for example by sawing, milling, or grinding. Assembly operations also represent examples of machining a workpiece. In particular, an assembly operation can include a joining operation, e.g., gluing. It is understood that the workpiece can be clamped and / or clamped for machining. This will be explained in more detail below.

[0015] In connection with the present invention, the at least one support pad can be designed as a planar component. This means that one dimension of the support pad is much smaller than the other two dimensions. For example, the smallest dimension of the support pad is one-tenth or less of the other two dimensions. In other words, the other two dimensions are at least ten times larger than the smallest dimension. The at least one support pad can therefore also be described as plate-shaped or mat-shaped.

[0016] Furthermore, the at least one support pad and the backing mat are understood here as separate components that are attached to one another. The at least one support pad and the backing mat can differ, for example, in their material, surface properties, hardness, elasticity, and / or other properties. Thus, the support pad can be specifically designed to contact the workpiece, while the backing mat can be specifically designed to contact an element of the surrounding environment.

[0017] In one embodiment, the at least one support pad is essentially rectangular, e.g., square. An essentially rectangular shape includes not only exact rectangles but also shapes where the corners of the rectangle are rounded. This shape is particularly practical when machining workpieces that are either essentially rectangular or have essentially rectangular sections. Such workpieces or sections thereof can be placed on an essentially rectangular support pad with particular spatial efficiency.

[0018] In one example, the at least one support pad has a thickness of at least 3 mm. A preferred minimum thickness is 8 mm to 12 mm. For instance, the at least one support pad is at least 10 mm thick. It has been found that such a minimum thickness of the at least one support pad provides reliable protection for the workpiece.

[0019] The support pad can be a maximum of 20 mm to 40 mm thick. Preferably, the support pad is no more than 25 mm to 30 mm thick. It has been found that a greater thickness does not significantly improve the protection of the workpiece, but at the same time impairs the handling of the support pad and the base.

[0020] According to one embodiment, the support pad comprises at least two layers. In this way, a first side of the support pad, e.g., the side where the support pad is attached to the backing mat, and a second side of the support pad, which faces the opposite side, can have different properties. For example, elements of a fastening interface can be provided on the first side, while the second side can be free of such elements. Furthermore, it is possible for the second side, which is designed to come into contact with the workpiece, to be softer and more flexible than the first side. It is also possible in this way to achieve a relatively robust surface intended for contact with the workpiece, while a different layer of the support pad provides a comparatively high degree of flexibility.Furthermore, the surface designed to contact the workpiece may be designed to have no or only a slight tendency to produce abrasion. This is sometimes referred to as chalking, as the abrasion can cause black or colored marks. The surface designed to contact the workpiece may therefore be made of an abrasion-resistant material and thus have a comparatively low tendency to chalk. In another example, the support pad has a top layer that is particularly gentle on the surface of a workpiece placed against it. Such a top layer may be made of a velour material. Outside of the top layer, the support pad may be made of a material other than velour.In another example, the side of the support pad intended for contact with the workpiece can be designed with one or more of its surface textures, hardness, and color properties to be washable, UV-resistant, and / or dirt-repellent. Furthermore, this side can be abrasion-resistant or low-abrasion. In addition, the material can be selected to be low-odor or odorless when intentionally or accidentally treated with a power tool. Overall, this ensures reliable protection of the surrounding environment and the workpiece, while also facilitating the handling of the support pad.

[0021] In a support pad with at least two layers, the two layers can be designed to be separable. This means that at least one of the layers can be replaced separately. Preferably, this can be done without tools, i.e., purely manually. The replaceability of at least one layer means that the support, or more precisely, the support pad, can be adapted to different usage situations. Furthermore, such pads are easy to repair.

[0022] In connection with the present invention, the carrier mat can be designed as a planar component. This means that one dimension of the carrier mat is much smaller than the other two dimensions of the carrier mat. For example, the smallest dimension of the carrier mat is one-tenth or less of the other two dimensions. In other words, the other two dimensions are at least ten times larger than the smallest dimension.

[0023] In one embodiment, the support mat is essentially rectangular. An essentially rectangular shape includes not only exact rectangles but also shapes where the corners of the rectangle are rounded. This shape is particularly practical when processing workpieces that are either essentially rectangular or have essentially rectangular sections. Such workpieces or sections thereof can be placed with particular spatial efficiency on a base comprising an essentially rectangular support mat with support pads.

[0024] In one example, the support base has a length of approximately 2.50 m and a width of approximately 1.5 m. The length and width of the support base are essentially determined by the backing mat. In this example, the backing mat also has a length of approximately 2.50 m and a width of approximately 1.5 m. In this embodiment, the support base preferably comprises a plurality of support pads, e.g., 3 to 10 support pads. In particularly preferred embodiments, 4, 5, or 6 support pads are provided. Alternatively, the support base has a length of approximately 30 cm and a width of approximately 60 cm to 80 cm. In particular, the width is 75 cm. Such a support base preferably comprises only a single support pad. It is also conceivable that a support base has a length of approximately 60 cm and a width of approximately 60 cm to 80 cm. Again, the width is particularly approximately 75 cm. Such a support base preferably comprises two support pads.According to another example, the support pad is approximately 90 cm long and approximately 60 cm to 80 cm wide. Preferably, the width is again 75 cm. Such a support pad preferably comprises three cushions. According to a further variant, the support pad is approximately 1.5 m long and approximately 60 cm to 80 cm wide. Preferably, the width is again 75 cm. All of the aforementioned dimensions of the support pad offer a good compromise between the high level of protection provided by the pad and ease of handling. The size of the support pad can be selected according to the specific application. Furthermore, if the support pad has comparatively small dimensions, it can be stored particularly easily in a storage or transport container.

[0025] As mentioned previously, the backing mat is at least partially deformable. This also includes cases where the entire backing mat is deformable. In other words, each section of the backing mat can be deformable. Such backing mats are particularly well-suited to adapting to environments with, for example, uneven surfaces. Furthermore, such a backing mat can be easily deformed as needed, for example, by folding, creasing, or rolling. This facilitates the transport and handling of the mat. In another case, the backing mat has at least two sections with differing degrees of deformability; that is, at least one section has comparatively high deformability and at least one section has comparatively low deformability. Therefore, the section with comparatively high deformability is easier to deform than the section with comparatively low deformability.At least one section with comparatively high form instability can thus represent a local deformation point or area, facilitating the folding, creasing, or rolling of the substrate, more precisely, the backing mat. It is understood that several sections with comparatively high form instability can be provided. Each of these sections can represent a deformation area. Such a backing mat is particularly easy to fold, creasing, or rolling.

[0026] The backing mat can have two sides. On the first side, which can also be called the inside, at least one pad can be attached. The opposite side can thus be called the outside. The outside is specifically designed to be placed against an element of its surroundings. For this purpose, at least the outside can be smooth, waterproof, washable, slip-resistant, UV-resistant, antistatic, abrasion-resistant, and / or tear-resistant. A tendency to produce abrasion is sometimes referred to as chalking, as the abrasion can cause black or colored marks. An abrasion-resistant material therefore has a comparatively low tendency to chalk. In this way, a long service life of the mat is ensured, while at the same time minimizing any impact on the surrounding environment.In one example, the outer surface is made of a tarpaulin material or a film material. For instance, the outer surface may comprise a polymer material or be made entirely of a polymer material.

[0027] According to one embodiment, the backing mat comprises at least two layers. In this way, an inner side of the backing mat, i.e., the side to which the support pads can be attached, and an outer side of the backing mat, i.e., the side facing the support pads, can have different properties. For example, an outer side can be smoother than an inner side. Alternatively or additionally, the outer side can be waterproof and washable, while the inner side is not. It is also possible for the outer side to be slip-resistant, while the inner side is designed to allow the workpiece to slide off. Overall, this ensures reliable protection of the surroundings and the workpiece, while also facilitating the handling of the mat.In a backing mat with at least two layers, the two layers can be designed to be separable. This allows at least one of the layers to be replaced separately. Preferably, this can be done without tools, i.e., purely manually. The replaceability of at least one layer makes the underlay adaptable to different usage situations. Furthermore, such underlays are easy to repair.

[0028] At least one support pad can be manually detachable from the backing mat. This allows the support pad to be separated from the backing mat without tools. The support pad and backing mat can also be separated relatively easily. In one example, the support pad is attached to the backing mat using Velcro and / or a clip.

[0029] In one embodiment, the at least one support pad is attached to the backing mat at least in the region of one edge of the support pad. The edge of the support pad is formed, in particular, by the edge of the surface of the support pad that faces the backing mat and, more specifically, rests against the backing mat. Preferably, the support pad is attached to the backing mat over its entire edge. This can be achieved, for example, by having a fastening means for attaching the at least one support pad and the backing mat run along one edge of the support pad, and in particular by completely encircling one edge. Alternatively, the support pad can be attached to the backing mat over its entire surface. This has the effect of trapping unwanted particles, such as dust or dirt, in a space between the at least one support pad and the backing mat.This prevents gaps or crevices between the support pad and the backing mat, into which unwanted foreign particles could otherwise penetrate.

[0030] According to one embodiment, the at least one support pad comprises a foam material. This includes a first case in which the support pad is made largely of a foam material. It also includes a second case in which the support pad is made only partially of a foam material. As already mentioned, the support pad can be multi-layered, which is particularly important in combination with the second case. Foam materials can be relatively soft and exhibit a certain degree of elastic compliance. Thus, a workpiece can be placed against or onto such a support pad relatively gently. In other words, undesirable damage to the workpiece is reliably prevented.

[0031] In one example, the demonstration material has a density of 0.5 g / cm³. 3 up to 1.5g / cm³ 3and / or a hardness of 25 Shore A to 85 Shore A. Such foam materials are particularly well-suited for supporting workpieces. This is especially true if the foam material is an elastomer. In another example, the foam material has a density of 10 kg / m³. 3 up to 60 kg / m 3 and / or a compression hardness of 60 kPa to 180 kPa. This applies particularly if the foam material is a thermoplastic.

[0032] In another example, the foam material is an open-cell or closed-cell elastomer. Examples of such elastomers are NBR, EPDM, PUR, TPU, and silicone foams. Alternatively, the foam material can be an open-cell or closed-cell thermoplastic, such as expanded polypropylene. These foam materials can be adjusted in terms of their density, i.e., their density and / or hardness.

[0033] According to another embodiment, the at least one support pad comprises a cork material and / or a balsa wood material. This includes a first case in which the support pad is made substantially from a cork material and / or a balsa wood material. Furthermore, it includes a second case in which the support pad is made only partially from a cork material and / or a balsa wood material. As already mentioned, the support pad can be multi-layered, which is particularly important in combination with the second case. Cork materials and / or balsa wood materials can be relatively soft and exhibit a certain degree of elastic compliance. Thus, a workpiece can be placed against or onto such a support pad relatively gently. In other words, undesirable damage to the workpiece is reliably prevented.

[0034] According to a further embodiment, the at least one support pad comprises a polystyrene material, in particular expanded polystyrene, which is also frequently referred to as Styrofoam. This includes a first case in which the support pad is made substantially from a polystyrene material. Furthermore, it includes a second case in which the support pad is made only partially from a polystyrene material. As already mentioned, the support pad can be multi-layered, which is particularly important in combination with the second case. Polystyrene materials can be relatively soft and exhibit a certain degree of elastic flexibility. Thus, a workpiece can be placed against or onto such a support pad relatively gently. In other words, undesirable damage to the workpiece is reliably prevented.An alternative to polystyrene material is expanded polypropylene.

[0035] According to yet another embodiment, the at least one support pad comprises a honeycomb structure, i.e., a structure comprising a plurality of honeycombs. This includes a first case in which the support pad is made substantially from the honeycomb structure. Furthermore, it includes a second case in which the support pad is made only partially from the honeycomb structure. As already mentioned, the support pad can be multi-layered, which is particularly important in combination with the second case. Honeycomb structures can be relatively soft and exhibit a certain degree of elastic compliance. Thus, a workpiece can be placed against or onto such a support pad relatively gently. In other words, undesirable damage to the workpiece is reliably prevented.Furthermore, honeycomb structures are very lightweight, especially compared to their mechanical properties. The honeycomb structure can be made from materials such as paper, cardboard, or PET.

[0036] In one example, the support is spread out flat in its use state. In a transport state, the support is compacted compared to its use state. "Spread out flat" means that two dimensions of the flattened support are significantly larger than a third dimension. For example, each of the two dimensions is at least ten times larger than the third dimension. The support can be spread out flat in such a way that the backing mat and / or the at least one support pad lies essentially in one plane. In another example, the backing mat and / or the at least one support pad is slightly curved and / or creased. In such cases, it is also referred to as being spread out flat. Furthermore, a largest dimension of the support in the transport state, i.e., when the support is compacted, is smaller than a largest dimension of the support in its use state.Preferably, the support is smaller in two dimensions during transport than in its state of use. The support may be folded, creased, or rolled, at least in sections, during transport. This allows the support to be compacted easily and reliably compared to its state of use. The state of use and the transport state can be chosen arbitrarily; that is, a user of the support can freely determine when the support assumes which state.

[0037] In one variant, at least two support pads are attached to the backing mat. These at least two support pads are spaced apart from each other. In particular, the base comprises three to ten support pads, for example, four, five, six, seven, eight, or nine. The two or more support pads are attached to the same backing mat. This means that even a base comprising multiple support pads still only includes one backing mat. The support pads can be arranged regularly. For example, all distances between adjacent support pads are the same. Such a base is particularly well-suited for folding. In another example, the distances between adjacent support pads increase along a specific direction of arrangement. This configuration facilitates rolling the base.By using two or more support pads, a workpiece can be placed on the base with particularly high reliability. This provides excellent protection for both the workpiece and its surroundings against unwanted influences.

[0038] The carrier mat may have a mounting interface for a mounting device, a support device, and / or a lifting device. The mounting interface may be located adjacent to at least one support pad. In this context, a mounting device is understood to be a means designed to connect a workpiece to the carrier mat, at least temporarily, via the mounting interface. A support device is understood to be a component or means designed to hold or support the workpiece, wherein a bearing surface of the support device is oriented substantially parallel to the substrate and / or the support pad when the substrate is in its operating state. A lifting device is understood to be a means or assembly designed to define a position of the workpiece within a plane extending parallel to the substrate when in its operating state.A workpiece lying on the support and movable within a plane parallel to the support can thus be positioned against the lifting device to define its position. The fact that the fastening interface is located adjacent to the support pad means that the fastening interface and the support pad are positioned at different locations on the support mat, but no other components are located between the fastening interface and the support pad. Consequently, the aforementioned mounting devices, support devices, and / or attachment devices can be positioned adjacent to the support pad, allowing them to interact easily and reliably with a workpiece resting on the support pad. In one example, the fastening interface comprises one or more openings and / or one or more clips.Alternatively or additionally, the mounting interface can include a guide rail, such as a dovetail guide or a flat guide. The dovetail guide or flat guide can run continuously along the mounting interface, but this is not required. Such mounting interfaces are generally reliable and well-suited for interacting with mounting hardware, support elements, and / or fixtures.

[0039] In one example, the mounting interface, which includes a guide rail, is connected to the backing mat by at least one seam. In this context, the mounting interface can be designed in two parts, with the first part being connected to the backing mat via the aforementioned seam, and the second part, for example the guide rail, being attached to the first part. The first part can be sewn wholly or partially into the backing mat. This creates a particularly stable and reliable connection between the backing mat and the mounting interface. At the same time, a seam also possesses a certain degree of dimensional stability, so the seam only minimally, or not at all, affects the dimensional stability of the backing mat.Consequently, for example, folding, creasing, or rolling of the backing mat is not affected, or only minimally affected, by a seam. Alternatively or additionally, at least part of the fastening interface can include at least one film hinge. In this way, too, for example, folding, creasing, or rolling of the backing mat is not affected, or only minimally affected, by the fastening interface.

[0040] In one example, the mounting interface is positioned between at least two support pads. Consequently, a mounting device, support device, or lifting device attached to the backing mat via the mounting interface lies between the two support pads. This allows the mounting device, support device, and / or lifting device to interact easily and reliably with a workpiece that rests on one of the two support pads or extends across both.

[0041] Furthermore, the substrate can include a mounting rail, a support ledge, and / or a stop. The mounting rail, support ledge, and / or stop are connected to the substrate via the fastening interface. In this context, the mounting rail constitutes a mounting device. An example of a mounting rail is a perforated strip or a grooved strip. The perforated strip can, for example, be designed to accommodate stop pins or mounting brackets. The grooved strip can be designed to accommodate clamping devices. The support ledge also constitutes a support device. Another term for a support ledge is a support strip. The support ledge and / or the support strip comprise a support surface designed to be placed against the workpiece. In other words, the workpiece can be placed onto the support surface.A base comprising a mounting rail, a support ledge, and / or a stop is therefore particularly well-suited for at least temporarily connecting a workpiece to be machined. Furthermore, such a workpiece can be placed on the base in a defined and reliable manner and / or positioned relative to the base.

[0042] According to one variant, the mounting rail has a groove for attaching a clamping device or a clamping element. Consequently, a workpiece can be easily attached to the base using a clamping device or a clamping element via the mounting rail. In this context, one or more T-nuts can be arranged in the groove, and the clamping device and / or the clamping element can be connected to the mounting rail via these T-nuts. Alternatively or additionally, the groove of the mounting rail can be designed and dimensioned so that a clamping head or clamping arm of a screw clamp can be inserted and secured in the groove. This enables reliable and precise machining of the workpiece. A clamping device or a clamping element can be attached in the groove.This allows the workpiece to be attached to the base particularly easily and reliably using the clamping device or clamping element. This facilitates efficient and precise machining of the workpiece while it is resting on the base. In particular, the clamping device can be inserted into the groove from above, i.e., along a direction that is essentially perpendicular to the groove bottom. This makes it possible to attach the clamping device at virtually any point within the groove.

[0043] In one design alternative, the support ledge and the at least one support pad each have a top surface opposite the carrier mat. These top surfaces lie in a common plane when the at least one support pad is relaxed. Alternatively, the top surfaces lie in a common plane when the at least one support pad is compressed by a predetermined amount. In other words, those sides of the support ledge and the at least one support pad intended to contact the workpiece have no height difference when the at least one support pad is relaxed or when the at least one support pad is compressed by a predetermined amount. Thus, in both alternatives, the workpiece can be placed reliably and precisely onto the support ledge and the support pad.The second alternative takes into account the compression of the support pad that can result from placing a workpiece onto at least one support pad. This is particularly advantageous when relatively heavy workpieces are used. Due to the lack of a height difference, play is prevented or completely avoided. The workpiece therefore does not wobble. Likewise, the workpiece does not need to be deformed to rest on both the support rib and the at least one support pad. Furthermore, this reliably prevents any return-to-form effects of the workpiece. The workpiece does not deform when it relaxes after machining. This is because no internal stresses develop due to the workpiece's support. In addition, pressure marks on the workpiece are avoided. Overall, a high machining quality is achieved.According to one embodiment, the mounting rail has a top surface facing away from the support mat. The top surface of the mounting rail is set back relative to the top surface of the at least one support pad, in the direction of the support mat. Consequently, a workpiece placed on the support pad does not come into contact with the mounting rail. Rather, the height difference between the mounting rail and the support pad—that is, the fact that the top surface of the mounting rail is set back relative to the top surface of the at least one support pad—creates a gap between the top surface of the mounting rail and the workpiece. In this way, undesirable effects of the mounting rail on the workpiece, in particular damage or pressure marks, are reliably prevented.Furthermore, this method allows a clamping device or clamping device coupled to the mounting rail to have a support surface for the workpiece that is perfectly level with the support pad. This enables precise and gentle machining of the workpiece.

[0044] In one variant, at least one support pad has a recess for receiving a clamping or clamping device. The support pad thus has a depression, an opening, and / or a cutout that is positioned and dimensioned such that the clamping and / or clamping device can be received within it. This is particularly relevant when the support is in its transport state, i.e., when it is compacted compared to its use state. As already explained, the support can be folded, creased, or rolled for this purpose. The recess allows the clamping or clamping device to remain attached to the support while the support is being transferred into its transport state. This saves time and effort when using the support.

[0045] The support mat can have an interface for coupling another support mat. Consequently, the substrate can be extended or enlarged. For this purpose, another substrate, comprising the additional support mat, is coupled to the support mat of the substrate according to the invention via the interface. Of course, it is also conceivable that the support mat of the substrate according to the invention has two or more interfaces for coupling another support mat. In such a case, the support mat can be extended or enlarged on two or more sides. In a case where the support mat has two interfaces for coupling another support mat, provided on adjacent sides of the support mat, it can also be said that the support mat can be both lengthened and widened by means of the two interfaces.This allows for the creation of a support structure comprising two or more interconnected supports. This support structure can be adapted to the size of a workpiece to be placed on the support and / or to the environment that the support is intended to protect.

[0046] It is understood that, in connection with the interface for coupling a further support mat, not only the support mat having this interface is a support mat of a substrate according to the invention, but the further support mat can also be a component of a substrate according to the invention. Thus, the substrate according to the invention can be used as a base substrate or base element that is expandable. Likewise, an expansion element or an expansion substrate that is coupled to such a base substrate or base element can be designed as a substrate according to the invention.

[0047] In one example, the interface for attaching an additional support mat includes a hook-and-loop fastener, a zipper, and / or a snap fastener. The hook-and-loop fastener is designed to interact with a corresponding hook-and-loop fastener on the additional support mat. Similarly, the zipper is designed to interact with a corresponding zipper on the additional support mat. Furthermore, the snap fastener is designed to interact with a corresponding snap fastener on the additional support mat. Of course, other suitable interfaces for attaching an additional support mat are also conceivable. Such interfaces allow multiple support mats to be quickly, easily, and reliably connected, thus expanding the underlay as needed.

[0048] Furthermore, it is understood that it is also possible to use two or more supports when machining a workpiece, i.e., when modifying the workpiece itself, modifying the connection between the workpiece and other workpieces, or during an assembly operation. In this case, the workpiece is placed on the two or more supports, but the two or more supports are not coupled to each other. Therefore, the two or more supports can be used with a certain distance between them. This is particularly useful when machining comparatively long or, more generally, comparatively large workpieces. In such a case, different, spaced-apart sections of the workpiece can be placed on different supports.

[0049] The mat can also include a locking mechanism to hold it in a transport state. As mentioned previously, the mat is more compact in a transport state compared to its use state. This can be achieved, for example, by folding, creasing, and / or rolling the mat. The locking mechanism allows the mat to be held in its transport state without any further user intervention. This facilitates handling, especially when the mat needs to be transported or stored in a compact form.

[0050] Alternatively or additionally, the mat may also include a carrying element for manual handling. This carrying element is designed to be grasped or held by the user. Alternatively or additionally, the carrying element is designed to connect the mat, more generally speaking, to the user. In this context, the carrying element can be designed as a strap or handle. This allows the mat to be carried in the hand, for example. With appropriate dimensions and positioning, the carrying strap can also be used as a shoulder strap. The user can then sling the mat over their shoulder. Alternatively, the carrying strap can be used to carry the mat like a backpack.It goes without saying that the mat can also include several carrying elements, allowing a user to handle it in various ways, for example, by carrying it by hand or as a backpack. This makes handling the mat easier for the user.

[0051] According to one embodiment, the support element is arranged outside the side of the support mat opposite the at least one support pad. This side of the support mat is therefore free of any support element. Since this side of the support mat is intended to be placed against the surroundings or an element of the surroundings, this prevents the support element from interfering, for example, by being positioned between the support mat and a floor on which the support mat is spread. The support mat can thus be spread out particularly reliably and precisely across its entire surface. Furthermore, the precise, flat positioning of the support can lead to an improvement in processing quality.

[0052] Furthermore, the problem is solved by a support pad for a base according to the invention. The support pad comprises a support pad body and an interface for attachment to a backing mat of the base. Such a support pad can therefore be placed between the workpiece being machined and a backing mat, as well as an element of the environment in which the workpiece is to be machined, during machining. For example, the support pad can be placed between a backing mat lying on a floor and a workpiece. It is also possible to place the support pad between a backing mat lying on a table surface and a workpiece. Similarly, the support pad can be placed between a backing mat positioned on the seat of a bench or chair and a workpiece. In this way, the workpiece is protected from unwanted impairments, such as damage.Such impairments primarily concern superficial damage such as scratches or dents. Unwanted contamination can also constitute such an impairment. Furthermore, the surrounding area is protected from unwanted damage resulting from the processing of the workpiece. The examples mentioned for damage to the workpiece also apply to the surrounding area. The fact that the support pad has an interface for attachment to a backing mat means that the support pad can be selected, at least to some extent, independently of the backing mat. Thus, the support pad can be specifically designed to contact the workpiece, while the backing mat can be specifically designed to contact an element of the surrounding area. In this way, the protection of both the workpiece and the surrounding area from unwanted damage is further enhanced.In this context, it is also possible to make the support cushion interchangeable with the carrier mat via the interface relative to the carrier mat. This improves adaptability to different workpieces and / or different environments. In the context of the present invention, the support cushion can also be referred to as a support pad or simply as a pad.

[0053] The support pad according to the invention can be designed as a planar component. This means that one dimension of the support pad is much smaller than the other two dimensions. For example, the smallest dimension of the support pad is one-tenth or less of the other two dimensions. In other words, the other two dimensions are at least ten times larger than the smallest dimension. The support pad can therefore also be described as plate-shaped or mat-shaped.

[0054] In one embodiment, the support pad is essentially rectangular. An essentially rectangular shape includes not only exact rectangles but also shapes where the corners of the rectangle are rounded. This shape is particularly practical when machining workpieces that are either essentially rectangular or have essentially rectangular sections. Such workpieces or sections thereof can be placed on an essentially rectangular support pad with particular spatial efficiency. In one example, the support pad has a thickness of at least 3 mm. A preferred minimum thickness is 8 mm to 12 mm. For example, the support pad is at least 10 mm thick. It has been found that such a minimum thickness of the support pad provides reliable protection for the workpiece.

[0055] The support pad can be a maximum of 20 mm to 40 mm thick. Preferably, the support pad is no more than 25 mm to 30 mm thick. It has been found that a greater thickness does not significantly improve the protection of the workpiece, but at the same time impairs the handling of the support pad.

[0056] According to one embodiment, the support pad comprises at least two layers. In this way, a first side of the support pad, e.g., the side where the support pad can be attached to the backing mat, and a second side of the support pad, which is opposite the first side, can have different properties. In this context, for example, elements of the attachment interface can be provided on the first side, while the second side can be free of such elements. Furthermore, it is possible for the second side, which is designed to come into contact with the workpiece, to be softer and more flexible than the first side. It is also possible in this way to achieve a relatively robust surface intended for contact with the workpiece, while a comparatively high degree of flexibility is achieved by means of another layer of the support pad.In another example, the support pad has a top layer that is particularly gentle on the surface of a workpiece placed against it. Such a top layer can be made of a velour material. Outside of the top layer, the support pad can be made of a material other than velour. In yet another example, the side of the support pad intended to contact the workpiece can be designed with one or more of its surface textures, hardness, and color to be washable, UV-resistant, and / or dirt-repellent. Furthermore, this side can be abrasion-resistant or low-abrasion. In addition, the material can be selected to be low-odor or odorless when it is intentionally or accidentally worked with an electric hand tool.Overall, this ensures reliable protection of the environment and the workpiece, while also making the handling of the support easier.

[0057] In a support pad with at least two layers, the two layers can be designed to be separable. This means that at least one of the layers can be replaced separately. Preferably, this can be done without tools, i.e., purely manually. The replaceability of at least one layer means that the support, or more precisely, the support pad, can be adapted to different usage situations. Furthermore, such pads are easy to repair.

[0058] The support pad can be manually detachable from the backing mat. The interface is therefore designed for detachable attachment to the backing mat of the base. This allows the support pad to be separated from the backing mat without tools. Likewise, the support pad and the backing mat can be separated relatively easily. In one example, the support pad is attached to the backing mat by means of a hook-and-loop fastener and / or a clip. Preferably, the support pad is attached to the backing mat in such a way that unwanted particles, such as dust or dirt, are kept out of any gap between the support pad and the backing mat. This can be achieved, for example, by having a fastening element for attaching the support pad and the backing mat run along one edge of the support pad, in particular by completely encircling one edge.This prevents gaps or crevices between the support pad and the backing mat, into which unwanted foreign particles could otherwise penetrate.

[0059] According to one embodiment, the support pad comprises a foam material. This includes a first case in which the support pad is made largely of a foam material. It also includes a second case in which the support pad is made only partially of a foam material. As already mentioned, the support pad can be multi-layered, which is particularly important in combination with the second case. Foam materials can be relatively soft and exhibit a certain degree of elastic compliance. Thus, a workpiece can be placed against or onto such a support pad relatively gently. In other words, undesirable damage to the workpiece is reliably prevented.

[0060] In one example, the demonstration material has a density of 0.5 g / cm³. 3 up to 1.5g / cm³ 3and / or a hardness of 25 Shore A to 85 Shore A. Such foam materials are particularly well-suited for supporting workpieces. This is especially true if the foam material is an elastomer. In another example, the foam material has a density of 10 kg / m³. 3 up to 60 kg / m 3 and / or a compression hardness of 60 kPa to 180 kPa. This applies particularly if the foam material is a thermoplastic.

[0061] Regarding examples of foam materials and other materials from which the support cushion may be made, reference can be made to the above explanations.

[0062] In one embodiment, the support pad has a recess for receiving a clamping or clamping device. The support pad thus has a depression, an opening, and / or a recess that is positioned and dimensioned such that the clamping and / or clamping device can be received within it. This is particularly relevant when the base containing the support pad is in its transport state, i.e., when the base is compacted compared to its state of use. As already explained, the base can be folded, creased, or rolled for this purpose. The recess allows the clamping or clamping device to remain attached to the base while the base is being transferred into its transport state. This saves time and effort when using the base. The same objective is further achieved by a carrier mat for a base according to the invention.The support mat is at least partially flexible and has at least one interface for attaching a support pad. Such a support mat can therefore be placed between the workpiece being machined (which can rest on a support pad) and an element of the environment in which the workpiece is to be machined. For example, the support mat can be placed between a floor and a workpiece resting on a support pad. It is also possible to place the support mat between a table surface and a workpiece resting on a support pad. Similarly, the support mat can be placed between the seat of a bench or chair and a workpiece resting on at least one support pad. In this way, the workpiece is protected from unwanted influences, such as damage.Such impairments primarily concern superficial damage such as scratches or dents. Unwanted contamination can also constitute such an impairment. Furthermore, the surrounding area is protected from unwanted damage resulting from the processing of the workpiece. The examples mentioned for damage to the workpiece also apply to the surrounding area. Due to the interface for attaching a support pad to the backing mat, the backing mat and the at least one support pad can be selected to a certain extent independently of each other. Thus, the support pad can be specifically designed to contact the workpiece, while the backing mat can be specifically designed to contact an element of the surrounding area. In this way, the protection of both the workpiece and the surrounding area from unwanted damage is further enhanced.In this context, it is also possible to make at least one of the support pads interchangeable with the backing mat. This improves the adaptability of the base, which holds the backing mat, to different workpieces and / or different environments. Because the backing mat is at least partially flexible, it can be adapted to an environment relatively easily. The backing mat can therefore also be placed on an uneven surface. Furthermore, this facilitates transport and handling of the base, as the backing mat can be deformed as needed, for example, by being folded, creased, or rolled up.

[0063] The support mat according to the invention can be designed as a planar component. This means that one dimension of the support mat is much smaller than the other two dimensions of the support mat. For example, the smallest dimension of the support mat is one-tenth or less of the other two dimensions. In other words, the other two dimensions are at least ten times larger than the smallest dimension.

[0064] In one embodiment, the support mat is essentially rectangular. An essentially rectangular shape includes not only exact rectangles but also shapes where the corners of the rectangle are rounded. This shape is particularly practical when processing workpieces that are either essentially rectangular or have essentially rectangular sections. Such workpieces or sections thereof can be placed with particular spatial efficiency on a base comprising an essentially rectangular support mat with a support cushion.

[0065] As mentioned previously, the backing mat is at least partially deformable. This also includes cases where the entire backing mat is deformable. In other words, each section of the backing mat can be deformable. Such backing mats are particularly well-suited to adapting to environments with, for example, uneven surfaces. Furthermore, such a backing mat can be easily deformed as needed, for example, by bending, folding, or rolling. This facilitates the transport and handling of the backing mat. In another case, the backing mat has at least two sections with different degrees of deformability; that is, at least one section has comparatively high deformability and at least one section has comparatively low deformability. Therefore, the section with comparatively high deformability is easier to deform than the section with comparatively low deformability.At least one section with comparatively high form instability can thus represent a local deformation point or area, facilitating the folding, creasing, or rolling of the substrate, more precisely, the backing mat. It is understood that several sections with comparatively high form instability can be provided. Each of these sections can represent a deformation area. Such a backing mat is particularly easy to fold, creasing, or rolling.

[0066] The backing mat can have two sides. The first side, which can also be called the inside, has the interface for attaching a pad. The opposite side can therefore be called the outside. The outside is specifically designed to be placed against an element of its surroundings. For this purpose, at least the outside can be smooth, waterproof, washable, slip-resistant, antistatic, abrasion-resistant, and / or tear-resistant. A tendency to produce abrasion is sometimes referred to as chalking, as the abrasion can cause black or colored marks. An abrasion-resistant material therefore has a comparatively low tendency to chalk. This ensures a long service life for the backing mat and minimizes any negative impact on the surrounding environment.In one example, the outer surface is made of a tarpaulin material or a film material. For instance, the outer surface may comprise a polymer material or be made entirely of a polymer material.

[0067] According to one embodiment, the backing mat comprises at least two layers. In this way, an inner side of the backing mat, i.e., the side to which the support pad can be attached via the interface, and an outer side of the backing mat, i.e., the side of the backing mat opposite the interface for the support pad, can have different properties. For example, an outer side can be smoother than an inner side. Alternatively or additionally, the outer side can be waterproof and washable, while the inner side is not. It is also possible for the outer side to be slip-resistant, while the inner side is designed to allow the workpiece to slide off. Overall, this ensures reliable protection of the surroundings and the workpiece, while also facilitating the handling of the backing mat.

[0068] In a backing mat with at least two layers, the two layers can be designed to be separable. This allows at least one of the layers to be replaced separately. Preferably, this can be done without tools, i.e., purely manually. The replaceability of at least one layer makes the backing mat adaptable to different usage situations. Furthermore, such backing mats are easy to repair.

[0069] The interface for attaching a support pad can be designed to allow the at least one support pad to be manually and detachably attached to the backing mat. This allows the at least one support pad to be separated from the backing mat without tools. The at least one support pad and the backing mat can also be separated relatively easily. In one example, the at least one support pad can be attached to the backing mat by means of a hook-and-loop fastener and / or a clip; that is, the interface includes a hook-and-loop fastener element and / or a clip element. Preferably, the support pad can be attached to the backing mat in such a way that unwanted particles, for example, dust or dirt, are retained by a gap between the at least one support pad and the backing mat.This can be achieved, for example, by having a fastening element for attaching the at least one support pad to the backing mat run along the edge of the support pad, in particular by completely encircling an edge. This prevents gaps or crevices between the support pad and the backing mat into which unwanted foreign particles could otherwise penetrate.

[0070] According to one variant, the backing mat includes at least two interfaces for attaching a support pad. These interfaces are spaced apart, so that attached support pads are also spaced apart. In particular, the backing mat includes three to ten interfaces for attaching a support pad, for example, four, five, six, seven, eight, or nine interfaces. The two or more interfaces are attached to the same backing mat. The interfaces can be arranged regularly, for example, with all the same distances between adjacent interfaces. Such a backing mat is particularly well-suited for folding. According to another example, the distances between adjacent interfaces increase along a specific orientation of the interfaces. This configuration facilitates rolling the backing mat.By providing two or more interfaces, a workpiece can be placed onto the carrier mat with particularly high reliability. This ensures that the workpiece and its surroundings are especially well protected from unwanted influences.

[0071] The carrier mat may have a mounting interface for a mounting device, a support device, and / or a lifting device. The mounting interface may be located adjacent to the interface for attaching the support pad. In this context, a mounting device is understood to be a means designed to connect a workpiece to the carrier mat, at least temporarily, via the mounting interface. A support device is understood to be a component or means designed to hold or support the workpiece, wherein a bearing surface of the support device is oriented substantially parallel to the carrier mat when in use. A lifting device is understood to be a means or assembly designed to define a position of the workpiece within a plane extending parallel to the carrier mat when in use.Thus, a workpiece lying on the base encompassing the carrier mat and movable within a plane parallel to the carrier mat can be positioned against the lifting device to define its position. The fact that the fastening interface is located adjacent to the interface for attaching the support pad means that the fastening interface and a support pad attached to the interface for attaching the support pad are located at different points on the carrier mat, but no other components are provided between the fastening interface and the interface for attaching the support pad.Consequently, the aforementioned mounting devices, support devices and / or attachment devices can be provided adjacent to the support pad, so that the mounting devices, support devices and / or attachment devices can interact easily and reliably with a workpiece lying on the support pad.

[0072] In one example, the fastening interface comprises one or more openings and / or one or more clips. Alternatively or additionally, the fastening interface can include a guide rail, which may, for example, have a dovetail guide. Such fastening interfaces are generally reliable and well-suited for interacting with mounting devices, support devices, and / or fixtures.

[0073] In one example, the mounting interface, which includes a guide rail, is connected to the backing mat by at least one seam. In this context, the mounting interface can be designed in two parts: a first part is connected to the backing mat via the aforementioned seam, and the second part, for example the guide rail, is attached to the first part. The first part can be sewn wholly or partially into the backing mat. This creates a particularly stable and reliable connection between the backing mat and the mounting interface. At the same time, a seam also possesses a certain degree of dimensional stability, so the seam only minimally, or not at all, affects the dimensional stability of the backing mat.Consequently, for example, folding, creasing or rolling of the backing mat is not affected, or only slightly affected, by a seam.

[0074] In one example, the mounting interface is positioned between at least two interfaces for attaching a support pad. Consequently, a mounting device, support device, or lifting device, attached to the carrier mat via the mounting interface, lies between the two interfaces for attaching support pads. This allows the mounting device, support device, and / or lifting device to interact easily and reliably with a workpiece that rests on one of the two support pads or extends across both. The support pads are each attached to their respective designated mounting interfaces.

[0075] Furthermore, the carrier mat can include a mounting rail, a support ledge, and / or a lifting device. The mounting rail, support ledge, and / or lifting device are connected to the carrier mat via the fastening interface. In this context, the mounting rail constitutes a mounting device. An example of a mounting rail is a perforated strip or a grooved strip. The perforated strip can, for example, be designed to accommodate stop pins or mounting brackets. The grooved strip can be designed to accommodate clamping devices. The support ledge constitutes a support device. Another term for a support ledge is a support strip. The support ledge and / or the support strip comprise a support surface designed to be placed against the workpiece. In other words, the workpiece can be placed onto the support surface.A support mat that includes a mounting rail, a support ledge, and / or a stop is therefore particularly well-suited for at least temporarily connecting a workpiece to be machined. Furthermore, such a workpiece can be placed on the support mat in a defined and reliable manner and / or positioned relative to the support mat.

[0076] According to one variant, the mounting rail has a groove for attaching a clamping device or a clamping element. Consequently, a workpiece can be easily attached to the support mat via the mounting rail using a clamping device or a clamping element. In this context, one or more T-nuts can be arranged in the groove, and the clamping device and / or the clamping element can be connected to the mounting rail via these T-nuts. Alternatively or additionally, the groove of the mounting rail can be designed and dimensioned so that a clamping head or clamping arm of a screw clamp can be inserted and secured in the groove. This enables reliable and precise machining of the workpiece. A clamping device or a clamping element can be attached in the groove.This allows the workpiece to be attached to the carrier mat particularly easily and reliably using the clamping device or clamping device. This facilitates efficient and precise machining of the workpiece while it is resting on the carrier mat.

[0077] The support mat can have an interface for coupling another support mat. Consequently, the support mat can be extended or enlarged. For this purpose, another support mat is coupled to the support mat according to the invention via the interface. Of course, it is also conceivable that the support mat according to the invention has two or more interfaces for coupling another support mat. In such a case, the support mat can be extended or enlarged on two or more sides. In a case where the support mat has two interfaces for coupling another support mat, which are provided on adjacent sides of the support mat, it can also be said that the support mat can be both lengthened and widened by means of the two interfaces. Thus, a support mat assembly can be created that comprises two or more interconnected support mats.This carrier mat assembly can be adapted to the size of a workpiece to be placed on the carrier mat and / or to an environment that is to be protected by the carrier mat.

[0078] It is understood that, in connection with the interface for coupling a further support mat, not only the support mat having this interface can be a support mat according to the invention, but also the further support mat itself can be a support mat according to the invention. Thus, the support mat according to the invention can be used as a base mat that is expandable. Likewise, an extension mat that is coupled to such a base mat can be designed as a support mat according to the invention.

[0079] In one example, the interface for attaching an additional support mat includes a hook-and-loop fastener, a zipper, and / or a snap fastener. The hook-and-loop fastener is designed to interact with a corresponding hook-and-loop fastener on the additional support mat. Similarly, the zipper is designed to interact with a corresponding zipper on the additional support mat. Furthermore, the snap fastener is designed to interact with a corresponding snap fastener on the additional support mat. Of course, other suitable interfaces for attaching an additional support mat are also conceivable. Such interfaces allow multiple support mats to be quickly, easily, and reliably connected, thus expanding the base layer covered by each support mat as needed.

[0080] Alternatively or additionally, the carrier mat can include a carrying element for manual handling. This carrying element is designed to be grasped or held by the user. Alternatively or additionally, the carrying element is designed to connect the carrier mat to the user in general terms. In this context, the carrying element can be designed as a strap or handle. This allows the carrier mat to be carried in the hand, for example. With appropriate dimensions and positioning, the carrying strap can also be used as a shoulder strap. The user can then sling the carrier mat over their shoulder. Alternatively, the carrying strap can be used to carry the carrier mat like a backpack.It goes without saying that the carrier mat can also include several carrying elements, allowing a user to handle it in various ways, for example, by carrying it by hand or as a backpack. This makes handling the carrier mat easier for the user.

[0081] According to one embodiment, the support element is arranged outside the side of the backing mat where the interface for attaching the support pad is located. Alternatively or additionally, the support element is arranged outside the side opposite the side with the interface for attaching the support pad. This side of the backing mat is therefore free of any support element. Since this side of the backing mat is intended to be placed against its surroundings or an element of the surroundings, this prevents the support element from interfering, for example, by being positioned between the backing mat and a floor on which the backing mat is laid. The backing mat can thus be laid out particularly reliably and precisely across its entire surface. Furthermore, the precise, flat positioning of the support can lead to an improvement in processing quality.

[0082] Furthermore, the task is solved by using a support for placing a workpiece. In particular, the workpiece can be placed on the support during machining using a handheld tool. The use involves transferring the support from a transport state to a working state and / or from a working state to a transport state. In the working state, the support is spread out flat, while in the transport state it is more compact compared to the working state. As already mentioned, "spread out flat" means that two dimensions of the spread-out support are significantly larger than a third dimension. For example, the two dimensions are each at least ten times larger than the third dimension. For instance, the support can be spread out flat in such a way that the backing mat and / or the at least one support pad lie essentially in one plane.In another example, the backing mat and / or at least one support pad is slightly curved and / or folded. In such cases, the mat is also described as being in a flat, spread-out state. Furthermore, a largest dimension of the mat in its transport state, i.e., when the mat is compacted, is smaller than a largest dimension of the mat in its use state. Preferably, the mat in its transport state is smaller in two dimensions than in its use state. The mat in its transport state can be folded, creased, or rolled, at least in sections. In this way, the mat can be compacted easily and reliably compared to its use state. The use state and the transport state can be chosen arbitrarily; that is, a user of the mat can freely determine when the mat assumes which state.Furthermore, such a mat can be placed between the workpiece and an element of the environment during processing. As already mentioned, the environment is not specifically designed for workpiece processing. For example, the mat can be placed between a floor and a workpiece. It is also possible to place the mat between a table surface and a workpiece. Similarly, the mat can be placed between the seat of a bench or chair and a workpiece. In this way, the workpiece is protected from unwanted damage, such as scratches or dents. Such damage can also include unwanted soiling.This also protects the surrounding area from unwanted damage resulting from the processing of the workpiece. The examples mentioned for damage to the workpiece also apply to the surrounding area.

[0083] According to an example, a substrate according to the invention is used in the inventive use.

[0084] The use of a support for placing a workpiece can also include machining the support pad of the support with the handheld tool. In other words, when machining the workpiece with the handheld tool, the support pad is intentionally machined as well. For example, the support pad is sawn, cut, milled, scratched, or sanded. Other forms of machining the support pad are also conceivable. This machining of the support pad ensures that the workpiece placed on it can be machined reliably and precisely. Therefore, compromises in the machining quality of the workpiece, which would otherwise be necessary to prevent damage to the support pad, are not required.Furthermore, machining the support pad allows the user of the handheld machine tool to concentrate better on the workpiece, as they don't have to worry about damaging the support pad. This also improves the quality of the machining result. In cases where the handheld tool is used with a dust extraction system, machining the support pad can also increase the extraction efficiency. This is because machining the support pad helps to contain workpiece particles generated during machining, such as chips, within the machining zone, allowing for reliable extraction.In other words, machining the support pad in conjunction with the workpiece prevents workpiece particles generated during machining from escaping uncontrollably into an environment from which they can no longer be removed, or only with great difficulty, by the extraction system. This is particularly relevant when the handheld tool is a saw used to cut into both the workpiece and the support pad.

[0085] The invention is explained below with reference to various embodiments shown in the accompanying drawings. These show:

[0086] Figure 1 shows a base according to the invention with a total of six support pads according to the invention and a carrier mat according to the invention, which assumes a state of use and which can be used according to the invention.

[0087] Figure 2 shows the base from Figure 1 in a side view along direction II in Figure 1.

[0088] Figure 3 shows detail III of the substrate from Figure 2 in a perspective view.

[0089] Figure 4 shows detail IV of the substrate from Figure 1 in a perspective view.

[0090] Figure 5 shows a side view of the detail from Figure 4 along a direction V in Figure 4.

[0091] Figure 6 shows a variant of a mounting interface of the base in a view corresponding to detail VI of the base from Figure 5; Figure 7 shows a support element of a mounting interface in a separate view.

[0092] Figure 8 shows another variant of the mounting interface of the base in a detailed view.

[0093] Figure 9 shows a support ledge that can be used as an alternative to the support ledge from Figure 3, in a separate illustration.

[0094] Figure 10 shows a variant of a mounting rail for the interface in a separate illustration.

[0095] Figure 11 shows the base formed from Figures 1 and 2 in a transport state,

[0096] Figure 12 is an illustration of a document group comprising a total of three documents according to the invention.

[0097] Figure 13 shows a base according to the invention in another embodiment with a total of six support pads according to the invention in another embodiment and a support mat according to the invention in another embodiment, wherein the base is in a state of use and can be used according to the invention.

[0098] Figure 14 shows a support cushion according to the invention from Figure 13 in a separate illustration,

[0099] Figure 15 shows a base according to a further embodiment with a total of six support pads according to a further embodiment and a support mat according to a further embodiment, wherein the base is in a state of use and can be used according to the invention.

[0100] Figure 16 shows the support from Figure 15 in a transport state, Figure 17 shows the support from Figure 13 during use for sawing off a workpiece,

[0101] Figure 18 shows a section along plane XVIII-XVIII in Figure 17, with the additional inclusion of a saw blade by which the workpiece is sawn off.

[0102] Figure 19 shows a detail of the base from Figures 1 and 2, wherein a clamping device according to a first variant is coupled to the base,

[0103] Figure 20 shows the base from Figure 19, wherein only one clamping base of the clamping device is coupled to the base,

[0104] Figure 21 shows the clamping device from Figure 19 in a separate illustration.

[0105] Figure 22 shows the clamping device from Figure 21 in a side view along direction XIV.

[0106] Figure 23 shows the clamping base of the clamping device from Figures 21 and 22 in a separate illustration.

[0107] Figure 24 shows a detail of the base from Figures 1 and 2, wherein a clamping device according to a second variant is coupled to the base,

[0108] Figure 25 shows the clamping device from Figure 24 in a separate illustration.

[0109] Figure 26 shows a view of the clamping device from Figure 25 along direction XXVI, with the clamping device in a locked state.

[0110] Figure 27 shows a view of the clamping device corresponding to Figure 26, wherein the

[0111] clamping device assumes an unlocked state

[0112] Figure 28 shows section XXVIII of the clamping device from Figure 25 in a

[0113] Exploded view, Figure 29 Detail of the base from Figures 1 and 2, wherein a clamping device according to a third variant is coupled to the base,

[0114] Figure 30 shows the detail from Figure 29 from a different perspective.

[0115] Figure 31 shows the clamping device and a mounting rail from Figures 29 and 30 in a separate illustration.

[0116] Figure 32 shows the clamping device and the mounting rail from Figure 31 in a different perspective.

[0117] Figure 33 shows the clamping device and the mounting rail from Figure 31 and Figure 32 in a different perspective.

[0118] Figure 34 shows a section of the clamping device from Figures 29 to 33 in a separate illustration.

[0119] Figure 35 shows a detail of a clamping device according to a fourth variant, which is coupled to the support according to the invention, and

[0120] Figure 36 shows the detail from Figure 35, where the clamping device assumes a different relative position with respect to the base.

[0121] Figures 1 and 2 show a support 10 designed to hold a workpiece. In Figures 1 and 2, the support 10 is shown in a state of use in which it is spread out flat.

[0122] When the workpiece is resting on the support 10, it can be machined, for example, with a handheld tool. Alternatively or additionally, it is possible to place the workpiece on the support 10 during assembly work.

[0123] The base 10 comprises a carrier mat 12. In the illustrated embodiment, the carrier mat 12 is essentially rectangular.

[0124] More precisely, the carrier mat 12 is rectangular, with rounded corners.

[0125] In the illustrated embodiment, the length L of the carrier mat 12 is approximately 2.50 m and its width B is approximately 1.5 m. However, it is understood that the length L and the width B can be selected depending on the intended application of the substrate 10.

[0126] The carrier mat 12 is made up of three layers in the example shown.

[0127] A layer shown below in Figure 2 represents a protective layer 14. In the illustrated embodiment, the protective layer 14 is made of a polymer, so that the protective layer 14 is waterproof and washable.

[0128] Adjacent to the protective layer 14, the carrier mat has a carrier layer 16. In the illustrated embodiment, the carrier layer 16 is formed from a fabric comprising textile fibers.

[0129] On one side of the carrier layer 16 opposite the protective layer 14, the carrier mat 12 has a connecting layer 18.

[0130] Unlike the protective layer 14 and the carrier layer 16, the bonding layer 18 is not continuous. Rather, the bonding layer 18 is formed from individual, non-connected bonding layer sections.

[0131] The connecting layer 18, i.e. the connecting layer sections, represents an interface 19 for attaching support pads 20, which will be explained in detail below.

[0132] In the illustrated embodiment, the connecting layer 18 is designed as a hook-and-loop fastener element, i.e., it is configured either as an adhesive part (i.e., the part of a hook-and-loop fastener that has barbs) or as a loop part (i.e., the part of a hook-and-loop fastener that has loops). The connecting layer 18 can thus be connected to a matching hook-and-loop fastener element provided on a support pad 20. This is illustrated in Figure 2 by means of an enlarged view, which, unlike the main view in Figure 2, shows the support pad 20 in a state lifted from the carrier mat 12.

[0133] The carrier mat 12, comprising the protective layer 14, the support layer 16 and the connecting layer 18, is comparatively thin, i.e., it has a thickness D that is very small compared to the length L and the width B of the carrier mat 12.

[0134] For this reason and due to the material properties of the carrier layer 16 and the protective layer 14, the carrier mat 12 is dimensionally unstable overall.

[0135] The base 10 also includes a total of six support cushions 20.

[0136] All six support pads 20 are identically constructed, so it is sufficient to describe only one of the support pads 20 in detail below.

[0137] The support pads 20 are also essentially rectangular, or more precisely, they have a rectangular base shape with rounded corners. The radius of the rounded corners corresponds to half the dimension of one of the narrow sides of the rectangular base shape.

[0138] Thus, the shape of the support pads 20 can also be described as a rectangle, with a semicircular segment attached to each narrow side, the diameter of which corresponds to the dimension of the narrow side.

[0139] The support cushions 20 are also made up of three layers in the example shown.

[0140] The support pad 20 shown in Figures 1 and 2 above has a top layer 22, which in this case is made of velour. Adjacent to the top layer 22, each support pad 20 also comprises a core layer 24. In the illustrated embodiment, this core layer is made of a foam material.

[0141] A connecting layer 26 is provided on one side of the core layer 24 opposite the cover layer 22.

[0142] The connecting layer 26 provides an interface 27 for attaching the support pad 20 to the carrier mat 12. The remaining sections of the support pad 20, i.e., the core layer 24 and the cover layer 22, can thus be referred to as the support pad body 29.

[0143] In the illustrated embodiment, the connecting layer 26 is designed as a hook-and-loop fastener element, i.e., it is configured either as an adhesive part (the part of a hook-and-loop fastener with hooks) or as a loop part (the part of a hook-and-loop fastener with loops). The connecting layer 26 can thus be connected to a suitable hook-and-loop fastener element. To connect the carrier mat 12 and the support pads 20, either the connecting layer 18 of the carrier mat 12 is configured as a loop part and the connecting layer 26 of the support pads 20 as an adhesive part, or vice versa (see enlarged view in Figure 2).

[0144] To form the base 10, the six support pads 20 are connected to the carrier mat 12 via their respective connecting layers 26, i.e., to the respective sections of the connecting layer 18. Since these connections are hook-and-loop fasteners, the support pads 20 can be manually removed from the carrier mat 12.

[0145] The support pads 20 are arranged at an angle to each other. Furthermore, the six support pads 20 are arranged on the carrier mat 12 such that they each have a distance from the edge of the carrier mat 12.

[0146] In the embodiment shown in Figures 1 and 2, the support pads 20 each have two handle openings 25. The handle openings 25 are designed to be grasped by a human hand or at least a human finger in order to position the respective support pad 20 relative to the support mat 12 and / or to remove it from the support mat 12.

[0147] The grip openings 25 are each positioned in the area of ​​one short side of the essentially rectangular support pads 20. Furthermore, the grip openings 25 extend completely through the associated support pad 20.

[0148] The handle openings 25 are also essentially rectangular in themselves.

[0149] Overall, the handle openings 25 are optional, i.e. the support pads 20 can also be designed without handle openings.

[0150] The carrier mat 12 also has a total of four fastening interfaces 28, each designed to attach a mounting device, a support device and / or a lifting device to the carrier mat 12.

[0151] Counting the support pads 20 in Figure 1 or Figure 2 from left to right, a fastening interface 28 is provided in an area of ​​the carrier mat 12 located between the first and second support pads 20. Furthermore, a fastening interface 28 is provided between the second and third support pads 20.

[0152] Furthermore, a fastening interface 28 is provided between the fourth support pad 20 and the fifth support pad 20. A fastening interface 28 is also provided between the fifth support pad 20 and the sixth support pad 20.

[0153] Thus, each fastening interface 28 is arranged adjacent to at least one support pad 20. In the illustrated embodiment, each fastening interface 28 is even arranged adjacent to a total of two support pads 20.

[0154] It is understood that the arrangement of the fastening interfaces 28 in the example shown in Figures 1 and 2 is exemplary. The fastening interfaces 28 can, of course, also be provided elsewhere, for example between the third support pad 20 and the fourth support pad 20.

[0155] In the illustrated embodiment, the fastening interfaces 28 between the fourth support pad 20 and the fifth support pad 20 and between the fifth support pad 20 and the sixth support pad 20 are designed identically.

[0156] These fastening interfaces 28 comprise a total of three openings 30 or holes.

[0157] In the case of the fastening interface 28, a support rib 32 is connected to the carrier mat 12 via the fastening interface 28 between the fourth support pad 20 and the fifth support pad 20, as well as between the fifth support pad 20 and the sixth support pad 20 (see in particular Figures 2 and 3).

[0158] This is achieved by screwing the support rib 32 to the carrier mat 12 with a total of three screws, each of which extends through an opening 30 of the associated fastening interface 28.

[0159] The support ribs 32 are rigid, elongated plastic components with a substantially flat upper surface 34. The upper surface of the support rib is defined as the side of the support rib 32 that faces the support mat 12. In the operating state of the base 10, as shown in Figures 1 and 2, the upper surface 34 of the support rib 32 and an upper surface 36 of the support pads 20 lie in the same plane.

[0160] A workpiece can therefore be placed on the two support bars 32 and the support pads 20.

[0161] Furthermore, in the illustrated embodiment, the support rib 32 has several rib interfaces 38. These are designed as blind holes. The rib interfaces 38 can be used to couple a stop device, e.g., a stop pin or a stop angle, and / or a clamping device for the workpiece to the support rib 32.

[0162] An alternative support rib 32, which differs from the support rib in Figure 3 only in the number and positioning of the rib interfaces 38, is shown in Figure 9. The support rib 32 from Figure 9 can be attached to the carrier mat 12 as an alternative to the support rib in Figure 3.

[0163] The fastening interfaces 28 between the first and second support pads 20 and between the second support pad 20 and third support pad 20 are also designed in the same way, but differ from the fastening interfaces 28 between the fourth support pad 20 and the fifth support pad 20 and between the fifth support pad 20 and the sixth support pad 20.

[0164] In the illustrated example, the fastening interfaces 28 between the first and second support pads 20, as well as between the second and third support pads 20, comprise several seams. These seams extend only through the carrier layer 16 of the carrier mat 12. In this way, the protective layer 14 is not affected by the seams. In the illustrated embodiment, the fastening interface 28 between the first and second support pads 20, as well as between the second and third support pads 20, each also includes a carrier element 40 for a mounting rail. This carrier element is sewn to the carrier mat 12 via the seams.

[0165] This support element 40, shown separately in Figure 7, has an elongated central section 42 that can be positioned between the respective support pads 20. Four fastening tabs 44 extend from the central section 42 on each side. The fastening tabs 44 are arranged regularly along the central section 42.

[0166] Furthermore, each of the fastening tabs 44 is connected to the central section 42 via a film hinge 46. The fastening tabs 44 can therefore be folded upwards relative to the central section 42 from a position shown in Figure 7, using the film hinge 46.

[0167] In the illustrated embodiment, a mounting rail 48 is attached to the support element 40, which also forms part of the mounting interface 28 (see Figure 4).

[0168] The mounting rail 48 has a generally U-shaped cross-section and is designed to be coupled with a clamping device and / or clamping device. In other words, the mounting rail 48 has a groove 56 via which clamping devices and / or clamping devices can be coupled to the mounting rail 48.

[0169] The groove 56 has two undercut surfaces 49 that act in one direction of the groove depth. These undercut surfaces 49 prevent an element from being pulled out of the groove 56 against the direction of the groove depth.

[0170] The mounting rail 48 can be coupled to the support element 40 via several screw connections 50 (see Figure 4 and Figure 7). - M -

[0171] Alternatively or additionally, the mounting rail 48 can be coupled to the support element 40 via a clip connection 52 (see Figure 6). In other words, the mounting rail 48 can be clipped onto the support element 40.

[0172] According to another alternative, the support element 40 has a sliding receptacle 54 for the mounting rail 48 (see Figure 8). The mounting rail 48 can therefore be inserted into the sliding receptacle 54 and thus coupled to the support element 40 and therefore to the support mat 12.

[0173] In all cases, the mounting rail 48 has a top surface 58 located on the side of the mounting rail 48 opposite the support mat 12. The top surface 58 of the mounting rail 48 is recessed relative to the top surfaces 36 of the support pads 20 in the direction of the support mat 12. In other words, the support pads 20 protrude from the mounting rail 48. Therefore, a workpiece resting on the support pad 20 does not necessarily come into contact with the mounting rail, even if it extends over an area where a mounting rail 48 is provided.

[0174] In the illustrated embodiment, the support element 40 is permanently connected to the support mat 12 via the aforementioned seams. In contrast, the mounting rail 48 can optionally be separated from the support element 40, i.e., also from the support mat 12.

[0175] Figure 10 shows an alternative mounting rail 48 that can be attached to the support mat 12 without a support element, namely via a fastening interface 28 with openings 30, as previously explained in connection with the support rib 32. In other words, in the variant shown in Figure 10, the support element 40 and the mounting rail 48 are integrally formed, with the integral component being able to be attached to the support mat 12 via the openings 30 by means of screws.

[0176] The base 10 can also assume a transport state that is more compact than its state of use. This transport state is shown in Figure 11. In this state, the base 10 is folded, utilizing the formability of the support mat 12 in those areas located between the support pads 20. These areas are each bent, bent, or folded by 180°.

[0177] Thus, the base 10 can be folded in a zigzag pattern, whereby the areas where the support pads 20 are provided and the support pads 20 themselves remain flat, i.e., are not deformed.

[0178] The base 10 also has a locking mechanism 60 designed to keep the base 10 in the transport state.

[0179] In the illustrated embodiment, the securing mechanism 60 comprises a total of four strap sections 62 and two manually operated snap fasteners 64. When closed, the strap sections 62 and the snap fasteners 64 reliably secure the base 10 in its transport state. To return the base to its use state, the snap fasteners 64 can be easily opened by hand, allowing the base 10 to be spread out flat.

[0180] The base 10 also has two support elements 66, which in the embodiment shown in Figure 11 are each designed as a retaining loop.

[0181] The support element 66 makes it easy to transport the base.

[0182] Optionally, the base 10, or more precisely, some of the support pads 20, has a recess 68 (see Figure 1). These recesses 68, which are only shown schematically in Figure 1, are formed as indentations or voids in the respective support pads 20. This makes it possible to fold the base 10 into its transport state even if a clamping device and / or clamping element is still attached to a mounting rail 48. Since this clamping device and / or clamping element can be accommodated in the recess 68, the base 10 can still be folded. The base shown in Figures 1 and 2 also has a total of two interfaces 70 for attaching an additional support mat 12. One of the interfaces 70 extends lengthwise and the other widthwise along the support mat 12. The additional support mat 12 can also be part of a base 10.

[0183] The interfaces 70 thus allow two or more documents 10 to be linked to form a document group 72.

[0184] Such a document set is shown in Figure 12.

[0185] It is understood that the interfaces 70 may also be located elsewhere, or that only a single interface may be provided. Likewise, it is of course also possible that the document 10 has more than two interfaces 70.

[0186] Figure 13 shows a base 10 according to another embodiment, depicted in its state of use. The following discussion focuses solely on the differences compared to the base shown in Figures 1 and 2.

[0187] An exemplary support cushion of the base 10 from Figure 13 is shown in Figure 14.

[0188] A first difference to the substrate shown in Figures 1 and 2 is that the carrier mat 12 is still essentially rectangular, but in the embodiment shown in Figure 13 the radii by means of which the corners are rounded are smaller.

[0189] Likewise, the radii by which the corners of the essentially rectangular support pads 20 are rounded are smaller in the embodiment shown in Figure 13 than in the embodiment shown in Figures 1 and 2.

[0190] Another difference is that the support pads 20 in the variant shown in Figure 13 do not have any handle openings. A further difference concerns the fastening interfaces 28. In the variant shown in Figure 13, a fastening interface is provided in each space between adjacent support pads 20, each comprising a total of three openings 30. The fastening interfaces 28, taken individually, correspond to the fastening interfaces of the base 10 shown in Figures 1 and 2, to which the support ribs 32 are attached.

[0191] Furthermore, with regard to the support 10 from Figure 13, reference can be made to the explanations concerning the support from Figures 1 and 2.

[0192] Figure 15 shows a base 10 according to another embodiment, shown in its state of use.

[0193] A transport state of the base 10 from Figure 15 is shown in Figure 16.

[0194] In the following, we will only discuss the differences compared to the substrate shown in Figures 1 and 2, and compared to the substrate shown in Figure 13.

[0195] One initial difference is that the base 10 from figures 15 and 16 comprises a total of seven support pads 20.

[0196] Another difference is that the support pads 20 are no longer arranged uniformly, unlike the supports 10 from Figures 1, 2 and 13.

[0197] In the variant shown in Figures 15 and 16, the distances between adjacent support pads 20 decrease from left to right. The support pads 20 themselves are identical.

[0198] This arrangement of the support pads 20 makes it possible to roll up the base 10 to put it into the transport state (see Figure 16). In the transport state of the base 10, those support pads 20 that are a relatively small distance from their adjacent support pads 20 are located further inwards than those support pads 20 that are a relatively large distance from their adjacent support pads 20.

[0199] In the variant shown in Figure 16, a guide rail FS for a handheld tool is also inserted into the interior of the wound-up base 10, so that the guide rail FS and the base 10 can be conveniently handled together. Alternatively, the guide rail FS can be wrapped inside the base 10.

[0200] However, providing a guide rail for the handheld tool is optional.

[0201] As already mentioned, the support 10 can be used to place a workpiece on it and machine it with a handheld tool. This applies to all the aforementioned variants and embodiments of the support 10.

[0202] If the document 10 is in its transport state, it must be converted from the transport state to the use state. After use, the document 10 can be converted back from the use state to the transport state so that it can be easily stored or transported.

[0203] Figure 17 shows an example in which the support 10, which in this case corresponds to the support 10 from Figure 13, is used for sawing off a workpiece WS. The guide rail is used for this purpose. Furthermore, the support 10 has a total of three support ribs 32 and a total of two guide rails 48.

[0204] It is possible that one or more of the support pads 20 may also be machined during the machining of the workpiece WS, for example, by being sawn into. In other words, one or more of the support pads 20 can be machined simultaneously using the handheld tool. This is illustrated in Figure 18 by the saw blade SB, which is shown protruding into the interior of one of the support pads 20. In this case, this is intended to ensure a high-quality machining result for the workpiece. If, after a certain number of machining operations, one or more of the support pads 20 become unusable, they can be replaced individually, as already explained.

[0205] When using the base 10, a clamping device 74 and / or clamping device can also be used.

[0206] In other words, a clamping device 74 or clamping device can be attached in the groove 56 of the mounting rail 48.

[0207] The clamping device 74 can be designed according to a first variant, which is explained below with reference to Figures 19 to 23.

[0208] The clamping device 74 according to the first variant comprises a screw clamp 76 and a clamping base 78.

[0209] A screw clamp 76 is understood to be a clamping device 74 comprising a fixed clamping arm 76a and a clamping arm 76b that is movable relative to the fixed clamping arm 76a. The movable clamping arm 76b is slidably mounted on a clamping rail 76c. The fixed clamping arm 76a is rigidly connected to the clamping rail 76c at one end. The fixed clamping arm 76a can therefore also be referred to as a clamping head, whereby the term "clamping head" is to be understood more generally than "fixed clamping arm 76a." A fixed clamping arm 76a is thus a specific type of clamping head.

[0210] A threaded spindle 76d is screwed into the movable clamping arm 76b, more precisely into an end section of the movable clamping arm 76b that projects beyond the clamping rail 76c. This spindle carries a pressure plate 76e at one end facing the stationary clamping arm 76a and is equipped with a handle 76f at the other end facing away from the stationary clamping arm 76a. Thus, a workpiece or a workpiece assembly consisting of several workpieces can be clamped using the screw clamp 76 by placing the stationary clamping arm 76a and the movable clamping arm 76b against opposite sides of the workpiece or workpiece assembly and then moving the pressure plate 76e towards the stationary clamping arm 76a by actuating the threaded spindle 76d. In doing so, the movable clamping arm 76b tilts against the clamping rail 76c, allowing a clamping force to be applied to the workpiece or workpiece assembly.

[0211] The clamping base 78 has a substantially U-shaped cross-section, allowing it to be slipped over the mounting rail 48. The opening of the U-shaped cross-section thus points towards the support mat 12.

[0212] Furthermore, the clamping base 78 has a T-nut 80 into which a threaded rod is screwed, which is connected at one end opposite the T-nut 80 to a rotary knob 82.

[0213] When the clamping base 78 is placed over the mounting rail 48, the T-nut 80 can be secured in the groove 56 by turning the knob 82. This rotates the T-nut 80 so that it engages the undercut surfaces 49 of the groove 56 and is clamped against these undercut surfaces 49. The clamping base 78 is thus attached to the mounting rail 48.

[0214] The fact that the T-nut 80 must be rotated to engage the undercut surfaces 49 allows the T-nut 80 to be made so narrow that it can be inserted into the groove 56 from above, i.e. in the groove depth direction.

[0215] The clamping base 78 also has an opening 84 adjacent to a stop 86. With respect to the U-shaped cross-section of the clamping base 78, the stop 86 extends as a wall element from the base of the U-shape. Furthermore, the opening 84 is located at the base of the U-shape. Both the opening 84 and the U-shaped cross-section of the clamping base 78 are dimensioned such that the fixed clamping arm 76a of the screw clamp 76, which can also be referred to as the clamping head, can be inserted through the opening 84, so that the fixed clamping arm 76a of the screw clamp 76 lies inside the U-shaped cross-section. Thus, the fixed clamping arm 76a of the screw clamp 76 also lies within the groove 56.

[0216] Consequently, a workpiece can be clamped against the clamping base 78 using the movable clamping arm 76b of the screw clamp 76. The workpiece can then be placed against the stop 86 and thus positioned.

[0217] The clamping base 78 is further designed such that a top surface 88 of the clamping base 78, in a state in which the clamping base is attached to the mounting rail 48, lies in the same plane as a top surface 36 of the support pads 20.

[0218] The clamping device 74 can also be designed according to a second variant, which is explained below with reference to Figures 24 to 28.

[0219] The clamping device 74 according to the second variant also comprises a clamping base 78 and a screw clamp 76. However, the screw clamp 76 must now be designed in such a way that the fixed clamping arm 76a, i.e. the clamping head, can be removed from the clamping rail 76c.

[0220] For example, a bore is provided at one end of the clamping rail 76c, to which the fixed clamping arm 76a is to be detachably attached. A pin or ball is provided on the detachably attached, fixed clamping arm 76a, which can optionally engage in the bore to secure the fixed clamping arm 76a to the clamping rail 76c. To detach the fixed clamping arm 76a from the clamping rail 76c, the pin or ball must be moved out of the bore. The pin or ball can be spring-loaded. In the second variant, the fixed clamping arm 76a of the screw clamp 76 is, in effect, replaced by the clamping base 78.

[0221] It is understood that the illustrated screw clamp 76, which has a clamping arm 76b or clamping leg that is movable parallel to the clamping rail 76c, is merely an example. Of course, a rotatable clamping leg, a lever mechanism, or a so-called pump mechanism can also be provided as alternatives.

[0222] The clamping base 78 therefore includes an interface 90 for coupling with the clamping rail 76c of the screw clamp 76. This interface 90 includes a pin or ball which can optionally engage in the bore of the clamping rail 76c to couple the clamping rail 76c to the clamping base 78, and optionally be removed from the bore of the clamping rail 76c to release the clamping base 78 from the clamping rail 76c. The ball or pin can be spring-loaded in a locking position, in which the clamping rail 76c is attached to the clamping base 78. Furthermore, the interface 90 can include a push button 91, the actuation of which removes the ball or pin from the bore of the clamping rail 76c, thus moving the ball or pin into an unlocked position. Naturally, the kinematically reversed case is also possible.

[0223] This interface 90 is essentially provided in the middle of an elongated base 92.

[0224] Furthermore, a T-nut 80 is provided on the base 92 in the same way as in the first variant, which is coupled to a rotary knob via a threaded rod, so that the base 92 can be fixed in the mounting rail 48 by means of the T-nut.

[0225] Due to the shape of the T-nut 80 described above, the clamping device 74 can also be inserted into the groove 56 according to a second variant from above, i.e., along a groove depth direction. In Figure 26, the T-nut 80 is shown in a rotational position in which it would engage behind the undercut surfaces 49 of the groove 56 if it were inserted into the groove 56. In Figure 27, the T-nut 80 is shown in a rotational position in which it would not engage behind the undercut surfaces 49 and can therefore be moved into or out of the groove 56 along a groove depth direction.

[0226] The clamping base 78 according to the second variant also includes a support element 94, which is detachably coupled to the base 92. The support element 94 can therefore be replaced, so that different types of support elements 94 can be coupled to the base as required.

[0227] This is illustrated in Figure 28, where the support element 94 is designed differently than in Figures 24 and 25. The support element 94 in Figures 24 and 25 has a positioning groove, which is useful for placing round and / or rod-shaped workpieces onto the support element 94. The support element 94 in Figure 28 does not have such a positioning groove. In a variant not shown in detail, a positioning groove is also provided that is rotated by 90° relative to the positioning groove in Figures 24 and 25.

[0228] Furthermore, the support element 94 from Figures 24 and 25 has a substantially U-shaped cross-section which, in the assembled state, can be slipped over the mounting rail 48.

[0229] In contrast, the support element 94 from Figure 28 is essentially plate-shaped.

[0230] In all variants, the support element has a top surface 96 which, when mounted, points away from the carrier mat 12.

[0231] This surface 96 lies essentially in a plane with the top 36 of the support cushion 20.

[0232] The clamping device 74 can also be designed according to a third variant, which is explained below with reference to Figures 29 to 34. The clamping device 74 according to the third variant also comprises a clamping base 78 and a screw clamp 76. However, the screw clamp 76, just as in the second variant, must be designed such that the fixed clamping arm 76a, i.e., the clamping head, can be removed from the clamping rail 76c. Again, a bore is provided at one end of the clamping rail 76c, to which the fixed clamping arm 76a is to be detachably attached. A pin or ball is provided on the detachably attached, fixed clamping arm 76a, which can optionally engage in the bore to fasten the fixed clamping arm 76a to the clamping rail 76c. To detach the fixed clamping arm 76a from the clamping rail 76c, the pin or ball must be moved out of the bore. The pin or ball can be spring-loaded.

[0233] In the third variant, the fixed clamping arm 76a is again replaced by the clamping base 78.

[0234] The clamping base 78 therefore includes an interface 90 for coupling with the clamping rail 76c of the screw clamp 76. This interface 90 includes a pin or ball which can optionally engage in the bore of the clamping rail 76c to couple the clamping rail 76c to the clamping base 78, and optionally be removed from the bore of the clamping rail 76c to release the clamping base 78 from the clamping rail 76c. The ball or pin can be spring-loaded in a locking position, in which the clamping rail 76c is attached to the clamping base 78. Furthermore, the interface 90 can include a push button 91, the actuation of which removes the ball or pin from the bore of the clamping rail 76c, thus moving the ball or pin into an unlocked position. Naturally, the kinematically reversed case is also possible.

[0235] This interface 90 is essentially provided in the middle of an elongated base 92.

[0236] To simplify the handling of the clamping device 74, the clamping base 78 also includes a handle from section 93. However, the clamping base 78 in the third variant differs from the clamping bases 78 according to the first and second variants with regard to the fastening option on the guide rail 48.

[0237] In the clamping base 78 of the third variant, a locking lug 98 is rotatably mounted on the base 92. The locking lug 98 is coupled to an actuating lever 100, so that by actuating the actuating lever 100 the locking lug 98 can be moved from a retracted position to an extended position and vice versa.

[0238] In this context, a position of the actuating lever 100 in Figures 29, 30 and 33 corresponds to an extended position of the locking lug 98.

[0239] Figures 31 and 32 show the actuating lever 100 in a position corresponding to a retracted position of the locking lug 98.

[0240] When the locking lug 98 is in this position, the clamping base 78 can be inserted into or removed from the groove 56 along one groove depth direction. This applies to every position along the groove 56.

[0241] In the third variant, a section of the base 92 is inserted into the groove 56. This also positions the locking lug 98 within the groove 56. Now, using the actuating lever 100, the locking lug 98 can be moved from the retracted position to the extended position, so that the locking lug 98 engages an undercut surface 49 of the groove 56 and thus connects the clamping base 78 to the guide rail 48.

[0242] Furthermore, the clamping device 74 according to the third variant also includes a support element 94. However, in contrast to the second variant, the support element is now rotatably mounted on the base 92, so that the support element 94 can assume a retracted position in which it is oriented essentially perpendicular to the top 36 of the support pads 20, provided that the clamping device 74 is connected to the guide rail 48.

[0243] Alternatively, the support element 94 can assume a position in which it extends essentially parallel to the mounting rail 48. In this position, a top surface 96 of the support element 94 is positioned in the same plane as a top surface 36 of the support pads 20.

[0244] The clamping device 74 can also be designed according to a fourth variant, which is explained below with reference to Figures 35 and 36.

[0245] The fourth variant is a modification of the third variant. The clamping device 74 of the fourth variant differs from the clamping device 74 of the third variant only with regard to the fastening option on the mounting rail 48.

[0246] In the clamping device 74 of the fourth variant, the locking lug 98 is also rotatably attached to the base 92. However, the locking lug 98 is spring-loaded in the extended position. In the absence of external forces, the locking lug 98 therefore assumes the extended position.

[0247] Furthermore, in the clamping device 74 according to the fourth variant, the base 92 has a locking projection 102 which is designed to engage an undercut surface 49 of the groove 56.

[0248] In this case, the locking lug 98, in its extended position, protrudes from the base 92 on a side opposite the locking projection 102.

[0249] The clamping device 74 according to the fourth variant can therefore be attached to the mounting rail 48 as follows.

[0250] The clamping device 74 is brought into a relative position to the mounting rail 48, i.e., to the groove 56, in which the base 92 can be inserted into the groove 56 past the undercut surfaces 49 of the groove 56. The locking lug 98 must, at least temporarily, assume the retracted position. This can be achieved, in particular, by manually holding the locking lug 98 in the retracted position. Alternatively, the locking lug 98 can be provided with an insertion chamfer so that it is pressed into the retracted position when the clamping device 74, more precisely the base 92, is inserted into the groove 56.

[0251] Once the relevant sections of the base 92 are seated within the groove 56, the clamping device 74 can be rotated such that the locking projection 102 engages behind a corresponding undercut surface 49 of the groove 56. At this point, at the latest, a clearance of movement opens up for the locking lug 98, allowing it to move from the retracted position to the extended position. In doing so, the locking lug 98 engages behind an undercut surface 49 of the groove 56 that is opposite the undercut surface 49 engaged by the locking projection 102.

[0252] Thus, the clamping device 74 is attached to the mounting rail 48.

[0253] If the clamping device 74 is to be separated from the mounting rail 48, it must first be rotated so that the locking projection 102 disengages from the associated undercut surface 49 of the groove 56. The clamping device 74 can then be pulled out of the groove 56 along the groove depth direction.

[0254] Since the locking lug 58 also has a disassembly chamfer, the locking lug 98 is temporarily pressed into the retracted position by the limit of the groove 56, so that the clamping device 74 can be removed from the groove 46.

[0255] The clamping devices 74, according to their various variants, have always been described in connection with a base 10 to which the clamping devices 74 can be attached. It is understood that the various clamping devices 74 are compatible with all described embodiments of the base 10, i.e., they can be used in conjunction with all embodiments of the base 10. Furthermore, it is understood that the clamping devices 74 can also be used independently of such a base 10. In this context, it is conceivable, for example, to use the clamping devices 74 on a T-slot table that has at least one mounting interface for the clamping devices 74, which is comparable to the mounting interface 28 of the base 10. Alternatively, the

[0256] Clamping devices 74 are used on a guide rail which has at least one fastening interface for the clamping devices 74 which is comparable to the fastening interface 28 of the base 10.

[0257] Reference symbol list

[0258] 10 documents

[0259] 12 carrier mat

[0260] 14 Protective layer

[0261] 16 Carrier layer

[0262] 18 Bonding layer of the carrier mat

[0263] 19 Interface for attaching a support pad

[0264] 20 cushion pads

[0265] 22 Top layer

[0266] 24 core layer

[0267] 25 Handle opening

[0268] 26 Connecting layer of the support pad

[0269] 27 Interface for attachment to a carrier mat

[0270] 28 Mounting interface

[0271] 29 cushion bodies

[0272] 30 Opening

[0273] 32 support bridge

[0274] 34 Top side of the support rib

[0275] 36 Top of the support cushion

[0276] 38 Bridge interface

[0277] 40 support element

[0278] 42 average cut

[0279] 44 Mounting tab

[0280] 46 film hinge

[0281] 48 Mounting rail

[0282] 49 Undercut area

[0283] 50 screw connections

[0284] 52 Clip connection 54 Sliding mount

[0285] 56 Groove of the mounting rail

[0286] 58 Whether he side of the assembly seemed

[0287] 60 locking mechanism

[0288] 62nd section

[0289] 64 plug fastener

[0290] 66 Support element

[0291] 68 Exclusion

[0292] 70 Interface for coupling an additional carrier mat

[0293] 72 Document bundle

[0294] 74 Clamping devices

[0295] 76 screw clamps

[0296] 76a fixed clamping arm

[0297] 76b movable clamping arm

[0298] 76c tension rail

[0299] 76d threaded spindle

[0300] 76e Printing plate

[0301] 76f handle cut off

[0302] 78 clamping bases

[0303] 80 T-nuts

[0304] 82 Rotary knob

[0305] 84 Opening

[0306] 86 hits

[0307] 88 Top of the clamping base

[0308] 90 Interface for coupling with a clamping rail of a screw clamp

[0309] 91 snap fastener

[0310] 92 socket base

[0311] 93 Handle cut off 94 Support element

[0312] 96 Top side of the support element

[0313] 98 Locking nose

[0314] 100 Actuating lever 102 Locking projection

[0315] FS guide rail for a handheld tool

[0316] D Thickness of the carrier mat

[0317] L Length of the carrier mat B Width of the carrier mat

[0318] SB saw blade

[0319] WS workpiece

Claims

Patent claims 1. Support (10) for placing a workpiece, in particular during processing using a handheld tool, comprising a support mat (12) that is at least partially dimensionally unstable and at least one support pad (20), wherein the at least one support pad (20) is attached to the support mat (12).

2. Support (10) according to claim 1, wherein the at least one support pad (20) is manually detachable and attached to the support mat (12).

3. Support (10) according to claim 1 or 2, wherein the at least one support pad (20) is attached to the support mat (12) at least in the area of ​​an edge of the support pad (20).

4. Support (10) according to one of the preceding claims, wherein the at least one support pad (20) comprises a foam material.

5. Substrate (10) according to one of the preceding claims, wherein the substrate (10) is spread out in a flat state in a state of use and is compacted in a transport state compared to the state of use.

6. Support (10) according to one of the preceding claims, wherein at least two support pads (20) are attached to the support mat (12) and wherein the at least two support pads (20) are arranged spaced apart from each other.

7. Substrate (10) according to one of the preceding claims, wherein the carrier mat (12) has a fastening interface (28) for a mounting means, a support means and / or a stop means, wherein the fastening interface (28) is arranged adjacent to the at least one support pad (20).

8. Support (10) according to claim 6 and claim 7, wherein the fastening interface (28) is positioned between the at least two support pads (20).

9. Base (10) according to claim 7 or 8, further comprising a mounting rail (48), a support rib (32) and / or a stop, wherein the mounting rail (48), the support rib (32) and / or the lifting device is connected to the carrier mat (12) via the fastening interface (28).

10. Support (10) according to claim 9, wherein the mounting rail (48) has a groove (56) for fastening a clamping device (74) or a clamping device.

11. Support (10) according to claim 10, wherein a clamping device (74) or a clamping device is fastened in the groove (56).

12. Support (10) according to one of claims 9 to 11, wherein the support rib (32) and the at least one support pad (20) each have a top surface (34, 36) opposite the support mat (12), wherein the top surfaces (34, 36) lie in a common plane when the at least one support pad (20) is relaxed, or wherein the top surfaces (34, 36) lie in a common plane when the at least one support pad (20) is compressed by a predetermined amount.

13. Base (10) according to one of claims 9 to 11, wherein the mounting rail (48) has a top surface (58) opposite the support mat (12), wherein the top surface (58) of the mounting rail (48) is set back in the direction of the support mat (12) relative to a top surface (36) of the at least one support pad (20) opposite the support mat (12).

14. Support (10) according to one of the preceding claims, wherein the at least one support pad (20) has a recess (68) for receiving a clamping means or clamping means (74).

15. Substrate (10) according to one of the preceding claims, wherein the support mat (12) has an interface (70) for coupling a further support mat.

16. Support (10) according to one of the preceding claims, further comprising a locking mechanism (60) for holding the support (10) in a transport state.

17. Support (10) according to one of the preceding claims, further comprising a carrying element (66) for manually handling the support (10).

18. Support pad (10) for a base (10) according to one of the preceding claims, comprising a support pad body (29) and an interface (27) for attachment to a carrier mat (12) of the base (10).

19. Carrier mat (12) for a substrate (10) according to one of claims 1 to 17, wherein the carrier mat (12) is dimensionally unstable at least in sections and has at least one has an interface (19) for attaching a support pad (20).

20. Use of a support (10) for placing a workpiece, particularly during machining using a handheld tool, wherein the use includes transferring the support (10) from a transport state to a use state and / or transferring the support (10) from a use state to a transport state, and wherein the support (10) is spread out flat in the use state and is compacted in the transport state compared to the use state.

21. Use according to claim 20, further comprising a co-working of a support pad (20) of the substrate (10) by means of the handheld tool.

Images