Collecting container for workpiece particles, and assembly comprising a motor-driven handheld tool and a collecting container

Abstract

The invention relates to a collecting container (18) for workpiece particles, said collecting container being designed to couple to a motor-driven handheld tool. The collecting container (18) comprises a container body (22), which has a flexible shape and is delimited by an outer skin (32). A connecting piece (20) is also provided for coupling the container body (22) to the handheld tool. The outer skin (32) has a light-incidence section (138) which is translucent. The outer skin (32) additionally has a viewing window section (140) which is transparent. At least one point of the light-incidence section (138) is connected to at least one point of the viewing window section (140) by a linear viewing axis (154). The invention additionally relates to an assembly comprising a motor-driven handheld tool and such a collecting container (18), said collecting container (18) being fluidically coupled to the handheld tool via the connecting piece (20) such that an air-workpiece particle mixture can be introduced into the collecting container (18) from the handheld tool.

Description

[0001] Collecting container for workpiece particles and assembly comprising a motor-driven hand tool and a collecting container

[0002] The invention relates to a collecting container for workpiece particles, for coupling to a motor-driven hand tool. The collecting container comprises a flexible container body defined by an outer skin. Furthermore, the collecting container has a connecting piece for coupling the container body to the hand tool.

[0003] Furthermore, the invention is directed to an assembly comprising a motor-driven hand tool and such a collecting container.

[0004] Such collection containers with a flexible container body are known from the prior art. In this context, the outer skin of the container body is usually made of a material that is permeable to air but retains workpiece particles above a specified particle size. In other words, the outer skin acts as a filter to separate workpiece particles from air. Thus, a mixture of air and workpiece particles resulting from material processing performed using the associated hand tool can be introduced into the collection container via the connection piece. The workpiece particles are retained in the collection container, so that the material processing causes comparatively little contamination.

[0005] Since the collection container only has a limited capacity to hold workpiece particles, it must be emptied from time to time. For efficient material processing using a hand tool coupled with such a collection container, it is important to avoid premature emptying, i.e., emptying before it is actually necessary.

[0006] AS: TOP to avoid. On the other hand, emptying too late must also be avoided, as an overfilled collection container can cause workpiece particles to escape uncontrollably, which is undesirable. Ideally, the collection container should be emptied when a limiting fill level is reached at which the filter function of the outer shell of the collection container is just barely sufficient.

[0007] In order to be able to empty the collection container as close as possible to this limit fill level, it is known from the state of the art to estimate the current fill level by manually compressing, shaking or tapping the collection container.

[0008] The object of the present invention is therefore to simplify the detection of the current fill level of a collecting container for workpiece particles. In doing so, the filter function of the outer skin should be impaired as little as possible, or not at all.

[0009] The problem is solved by a collecting container for workpiece particles, for coupling to a motor-driven hand tool. By means of the coupling, the motor-driven hand tool can be fluidly coupled to the collecting container, so that an air-workpiece particle mixture can be introduced from the motor-driven hand tool into the collecting container. The collecting container comprises a flexible container body, which is delimited by an outer skin. In addition, the collecting container has a connecting piece for coupling the container body to the hand tool. The outer skin has a light incidence section that is translucent. In addition, the outer skin has a viewing window section that is transparent. At least one point of the light incidence section is connected to at least one point of the viewing window section by a straight viewing axis.A user of the collection container and a hand tool coupled to it can thus determine the current fill level by looking through the viewing window section into the interior of the collection container. Light can fall into the interior of the collection container through the light incidence section. Consequently, at least a section of the interior of the collection container is illuminated by light that enters via the light incidence section. The current fill level of the collection container can thus be determined with high precision and reliability. At the same time, all other sections of the outer skin, i.e. all sections except the light incidence section and the viewing window section, are permeable to air and can perform the desired filter function of separating workpiece particles above a predetermined particle size from air. Optionally, the light incidence section is also permeable to air and acts as a filter.It should be emphasized that the light-incidence section is a section of the outer skin and therefore always comprises outer skin material. In other words, the light-incidence section is not designed as an opening. The filtering effect is therefore only slightly influenced by the viewing window section and, if applicable, the light-incidence section.

[0010] In this case, the transparent viewing window section refers to a section of the outer skin that allows images or vision to pass through. The viewing window section is thus transparent to light visible to the human eye. At the same time, the light is scattered very little or not at all by the viewing window section.

[0011] The light incidence section, on the other hand, is translucent. This means that the light incidence section is at least partially transparent to incoming light in a spectral range visible to the human eye. The light incidence section can be transparent. Alternatively, the light incidence section is translucent, meaning the incoming light is scattered within the light incidence section, making it impervious to images or view.

[0012] It is understood that in such a collection container, the connecting piece is designed to introduce an air-workpiece particle mixture into the container body. The connecting piece is thus fluidly connected to the interior of the container body.

[0013] In one example, the container body comprises a frame and a covering that encloses the frame. The frame is at least somewhat flexible in shape. The covering essentially forms the outer skin.

[0014] The container body is three-dimensional. Depending on the specific application, the workpiece particles are also referred to as dust, e.g., grinding dust, or chips, e.g., sawdust.

[0015] The light incidence section and the viewing window section can define a transmitted light zone that extends inside the container body and encompasses the viewing axis. The transmitted light zone is understood to be the partial volume of the container body that encompasses all linear connections between a point in the light incidence section and a point in the viewing window section. The lateral surface of the transmitted light zone can be physically unlimited, at least in sections. Within the transmitted light zone, the interior of the collection container is particularly clearly visible through the viewing window section. Thus, the current fill level can be particularly well detected by detecting a fill level within the transmitted light zone.

[0016] In one embodiment, the light-incidence section is made of a dimensionally unstable material. The light-incidence section can thus be deformed together with the other sections of the outer skin. In particular, the light-incidence section does not exhibit significantly greater dimensional stability, i.e., does not exhibit significantly less dimensional instability, than the other sections of the outer skin. The collection container can thus be deformed in the usual way despite the light-incidence section. This allows it to be compressed or folded in the usual way and stowed in relatively small storage spaces.

[0017] The light-incidence section can comprise a textile material. In this context, for example, a white or light-colored textile material can be used. This makes it translucent. Alternatively or additionally, the textile material can have a mesh structure, with the meshes of the mesh structure being sufficiently wide to allow light to pass through. In this way, a light-incidence section can be created that is translucent yet dimensionally stable and robust.

[0018] Alternatively or additionally, the light incidence section can comprise a plastic material. This also creates a robust light incidence section that can also be dimensionally stable. A scratch-resistant material is particularly preferred as the plastic material. Alternatively or additionally, a plastic material characterized by a low tendency to static charge is selected.

[0019] The viewing window section can also be made of a dimensionally stable material. The viewing window section can thus be deformed along with the other sections of the outer skin. In particular, the viewing window section does not exhibit significantly greater dimensional stability, i.e., significantly less dimensional stability, than the other sections of the outer skin. The collection container can thus be deformed in the usual way despite the viewing window section. This allows it to be compressed or folded in the usual way and stowed in relatively small storage spaces.

[0020] The viewing window section preferably comprises a plastic material or is made of a plastic material. Using such a material, the desired properties of the viewing window section can be realized in a simple and cost-effective manner. The plastic material can be used in the form of a film.

[0021] According to one variant, the viewing window section is connected to the remaining sections of the outer skin via a weld seam, an adhesive seam, or a sewing thread. All of these alternatives result in a reliable connection between the viewing window section and the remaining sections of the outer skin. Furthermore, weld seams, adhesive seams, or seams created using a sewing thread can be produced automatically using known systems and devices. This allows the viewing window section to be connected to the remaining sections of the outer skin simply and cost-effectively.

[0022] In this context, the weld seam can be designed as an ultrasonic weld seam. It can therefore be produced using an ultrasonic welding process.

[0023] In addition to one of the connections already mentioned, it is also conceivable to provide a Velcro or zipper connection between the viewing window section and the other sections of the outer skin. These have the advantage that the viewing window section can be separated and reconnected to the other sections of the outer skin several times as needed. This is practical, for example, if the collection container needs to be repaired.

[0024] According to one embodiment, the light incidence section is formed on a first outer skin surface of the outer skin, and the viewing window section is formed on a second outer skin surface of the outer skin. The first outer skin surface and the second outer skin surface adjoin one another at an outer skin edge. The light incidence section and the viewing window section form an angle of less than 180 degrees on an inner side of the outer skin. Put simply, the light incidence section and the viewing window section are arranged at an angle. The first outer skin surface and / or the second outer skin surface can be flat, but do not have to be. Such an arrangement of the light incidence section and the viewing window section ensures that a relatively large amount of light can pass from the light incidence section through the interior of the collecting container to the viewing window section. This makes it possible to quickly, easily, and precisely determine the current fill level of the collecting container.

[0025] The light incidence section and the viewing window section can also be formed on outer skin surfaces of the outer skin that are at least partially opposite one another. Again, the first outer skin surface and / or the second outer skin surface can be flat, but do not have to be. Even with such an arrangement of the light incidence section and viewing window section, a relatively large amount of light can pass from the light incidence section through the interior of the collection container to the viewing window section. Thus, the current fill level of the collection container can be determined quickly, easily, and precisely.

[0026] The viewing window section is preferably arranged on an outer skin surface of the outer skin that is located laterally with respect to a main flow direction, wherein the main flow direction runs from an outer skin surface carrying the connection piece towards an outer skin surface that is opposite in this respect. This has several effects. Firstly, such an arrangement of the viewing window section means that, compared to a collecting container without a viewing window section, the previously explained filtering function of the outer skin is not impaired or is impaired only to a very slight extent. This is because the section of the outer skin comprising the viewing window section is only subjected to flow essentially parallel to a plane of the viewing window section. In particular, a flow component that strikes the viewing window section essentially head-on is small or non-existent.Furthermore, with such an arrangement of the viewing window section, a flow emanating from the connection piece at least partially cleans the viewing window section. This is due to the flow components that predominantly run parallel to the viewing window section, which entrain workpiece particles that have accumulated on the viewing window section.

[0027] In a preferred variant, the viewing window section is also located closer to an outer skin surface supporting the connecting piece than to an opposite outer skin surface. Further preferably, the viewing window section is arranged at a connecting piece-side end of the associated outer skin surface. Roughly speaking, the viewing window section is positioned near the connecting piece. In this way, it is easy and reliable to determine whether the current fill level of the collecting container is already blocking the entry of further air-workpiece particle mixture into the collecting container, so that the collecting container must be emptied. In this context, it must be emphasized that a limit fill level of the collecting container does not necessarily correspond to a complete fill of the collecting container, but only to a certain proportion thereof.

[0028] The connection piece can be arranged on an outer skin surface that encompasses either the light incidence section or the viewing window section. Thus, the connection piece is arranged on an outer skin surface that simultaneously encompasses the light incidence section or the viewing window section. Since the air-workpiece particle mixture flows into the collection container via the connection piece, any influence of the light incidence section or the viewing window section on the flow and the filtering function of the outer skin is negligible. The outer skin can comprise a textile material outside the light incidence section and outside the viewing window section. Such an outer skin is lightweight. Furthermore, it allows the outer skin to be easily deformed. This allows the outer skin, and thus also the collection container, to be compressed or folded in the usual way and stowed in relatively small storage spaces.Furthermore, the textile material can be permeable to air, yet impermeable to workpiece particles above a specified particle size. The textile material thus retains workpiece particles above the specified particle size. The textile material can therefore act as a filter to separate workpiece particles from air.

[0029] In one example, the textile material is a knitted material or a woven material. This means that the textile material from which at least one portion of the outer skin is formed is produced by means of a knitting process or a weaving process. Combinations are also possible, e.g., one portion of the outer skin may comprise a knitted material and another portion of the outer skin may comprise a woven material.

[0030] The textile material may be a polyester material. In particular, the textile material may comprise polyester fibers. In a case where the textile material is a knitted or woven material, the textile material may be knitted or woven from polyester fibers. Such fibers can reliably provide the previously described functions of the textile material, i.e., deformability and / or the filter function. Furthermore, such fibers are robust, so that a section of the outer skin made from them is also robust and durable.

[0031] According to one variant, an outer skin surface of the outer skin, on which the connecting piece is arranged, comprises a dimensionally stable material. As already explained, such an outer skin surface is essentially irrelevant for the filter function. It is also conceivable to form the connecting piece at least partially integrally with the outer skin surface from a dimensionally stable material. This allows for a comparatively simple construction of the collecting container. Furthermore, the light incidence section or the viewing window section can easily be formed on an outer skin surface made of a dimensionally stable material.

[0032] In an alternative, the viewing window section has an antistatic section that is electrically conductive at least in part. In this context, the antistatic section can be implemented as a section of the viewing window section that is provided with an electrically antistatic coating. The viewing window section itself can also comprise an electrically conductive segment in the antistatic section. The segment can comprise a metallic conductor. This can be in the form of a woven or non-woven fabric. The antistatic section prevents electrostatic charging of at least a section of the viewing window section. Consequently, workpiece particles are prevented from adhering to the viewing window section due to static charging. In this way, good visibility through the viewing window section can be ensured.

[0033] An electrical connection contact can be provided on the connection piece for electrical potential equalization with the hand tool. The connection contact can be electrically connected to the antistatic section of the viewing window section. This enables potential equalization between the collection container and a hand tool coupled to it. In this way, static charges can be discharged from the viewing window section into the hand tool. The result is a viewing window section that is particularly well protected against electrostatic charging. This ensures that a user can always see clearly through the viewing window section to determine the current fill level of the collection container.

[0034] The viewing window section is preferably provided with a fill level scale. Using a fill level scale, the current fill level can be determined quantitatively. In addition, the fill level scale ensures a certain degree of objectivity when recording the current fill level. Both of these allow a user to record a limit fill level relatively quickly and easily and thus empty the collection container at a suitable time, while maintaining efficient operation and minimizing contamination of the workplace. The fill level scale is designed, for example, as a scale of percentage values. In another example, the fill level scale comprises graphic elements that illustrate at least one fill level. Alternatively or additionally, a fill level at which emptying is recommended can be marked on the fill level scale.

[0035] In one variant, an emptying opening for removing workpiece particles from the container body is arranged in the outer skin, and an emptying direction assigned to the emptying opening extends from the interior of the container body through the emptying opening. The emptying direction is essentially perpendicular to an opening cross-section of the emptying opening. Furthermore, a closure means is provided which can be fastened to the container body at least in a closed position, so that the emptying opening can be selectively closed by means of the closure means. In a use position of the collecting container, when the closure means is in an open position, the emptying direction has an extension component pointing vertically in the direction of a processing zone. In the closed position of the closure means, the emptying opening is closed by means of the closure means. In the open position, the emptying opening is released.In the open position, the closure means can be connected to the container body or separated from the container body. A usage position of the collection container corresponds to the position which the collection container assumes when it is coupled to an associated hand tool and the hand tool is in a normal position or reference position. In this case, a processing zone lies along a vertical direction below the hand tool with which the processing is carried out. The processing zone is therefore also located vertically below the collection container. Information on the processing zone and the usage position refer to this case. It is understood that with some hand tools, which may also be equipped with collection containers, work in a vertical position or overhead is also possible. However, such working positions are regarded as an exception in the present case and not used as a reference.In the use position, a central axis of the connecting piece typically has a horizontal extension component. Preferably, the horizontal extension component is greater than a vertical extension component of the central axis of the connecting piece. More preferably, the horizontal extension component of the central axis of the connecting piece is at least twice as large as the vertical extension component. In the use position of the collecting container, the emptying direction thus has an extension component that points vertically downwards. Workpiece particles present within the collecting container can thus leave the interior of the collecting container through the emptying opening by utilizing gravity. The collecting container can remain connected to the associated hand tool, while the hand tool can assume its normal position.In other words, the hand tool with the attached collection container does not have to be placed in an ergonomically uncomfortable position. This makes emptying the collection container particularly easy. The fact that the emptying direction extends vertically downwards also means that the workpiece particles can be emptied directly into a container positioned below the collection container. This prevents unwanted contamination from workpiece particles.

[0036] According to one embodiment, the container body comprises a folding mechanism so that the container body can optionally assume a working position in which the outer skin encloses a first volume, and optionally assume a transport position in which the outer skin encloses a second volume. The second volume is smaller than the first volume. In the working position, a first outer skin length dimension has a greatest length compared to the other outer skin length dimensions. In the transport position, the first outer skin length dimension defines a greatest length of the container body. In this context, an outer skin length dimension is understood to mean a length dimension of the outer skin. The orientation of the length dimension in space is not important. Depending on the spatial orientation of the container body, an outer skin length dimension can therefore be a length, a width, or a height.Furthermore, an outer skin length dimension can be defined between any pairs of surfaces, edges, and corners of the outer skin. Dimensions of surfaces and edges of the outer skin also fall under the term outer skin length dimension. For example, an outer skin dimension extends along an edge of the outer skin. The collection container according to the invention is therefore characterized in that a greatest length of the container body in the transport position is defined by the outer skin length dimension that has the greatest length in the working position. In other words, the container body can be folded using the folding mechanism in such a way that the greatest outer skin length dimension in the working position, which does not necessarily have to be the largest overall dimension of the container body, becomes the largest overall dimension of the container body in the transport position. The container body therefore does not become any longer as a result of the folding.In this way, a good compromise can be achieved between the largest possible volume of the container body in the working position and the smallest possible volume of the container body in the transport position. Ideally, the volume in the transport position is zero.

[0037] The connecting piece can have a free end that protrudes from the container body. In this case, a connecting piece cover can be provided which is rotatably mounted on the connecting piece and can selectively close and open the connecting piece at the free end. The connecting piece cover therefore closes the connecting piece at the end that protrudes from the container body. Consequently, when the connecting piece cover is closed, at least those sections of the connecting piece through which an air-workpiece particle mixture flows during operation of the collecting container are located on the same side of the connecting piece cover as the container body. In other words, when the connecting piece cover is closed, those sections of the connecting piece through which an air-workpiece particle mixture flows during operation of the collecting container are separated from the surroundings of the collecting container by means of the connecting piece cover.No workpiece particles can escape from this section of the connection piece. Undesired contamination can therefore be ruled out. The rotatable bearing on the connection piece makes it easy to move the nozzle cover from an open state to a closed state and vice versa. It goes without saying that the rotatable bearing of the nozzle cover on the connection piece only allows a rotational movement of the nozzle cover relative to the connection piece. All other degrees of freedom of movement are blocked by the bearing. A further advantage of the nozzle cover of the collecting container according to the invention is that, in an open state, it lies outside the sections of the connecting piece through which an air-workpiece particle mixture flows during operation of the collecting container. In other words, such a flow is not impeded or restricted by the nozzle cover.

[0038] The object is further achieved by an assembly comprising a motor-driven hand tool and a collecting container according to the invention. The collecting container is fluidically coupled to the hand tool via the connecting piece, so that an air-workpiece particle mixture can be introduced from the hand tool into the collecting container. A user of this assembly, i.e. of the collecting container and the hand tool coupled thereto, can thus determine the current fill level of the collecting container by looking through the viewing window into the interior of the collecting container. The current fill level of the collecting container can therefore be determined with high precision and reliability. In this case, a filtering effect of the outer skin of the collecting container is achieved by the viewing window and, if applicable, the

[0039] The light incidence section is only slightly affected. Using such an assembly, machining tasks can be carried out with high efficiency and in compliance with high

[0040] Carry out cleanliness requirements.

[0041] In this context, the collection container and the hand tool can be electrically connected. This allows for potential equalization between the collection container and the hand tool. This creates a viewing window section that is particularly well protected against static charge.

[0042] Furthermore, the effects and advantages already explained in connection with the collecting container according to the invention also apply to the assembly according to the invention and vice versa.

[0043] The invention is explained below using various embodiments shown in the accompanying drawings. They show:

[0044] Figure 1 shows a hand tool system with a storage container in which an assembly comprising a motor-driven hand tool and a collecting container according to a first embodiment is positioned, wherein a covering of the collecting container is omitted,

[0045] Figure 2 shows the assembly from Figure 1 in an isolated plan view,

[0046] Figure 3 shows the collecting container from Figures 1 and 2 in an isolated view, with the collecting container in a working position,

[0047] Figure 4 shows the collecting container from Figures 1 to 3, wherein the collecting container assumes a transport position,

[0048] Figure 5 shows the assembly from Figures 1 and 2 in a schematic plan view, with the collecting container in the working position,

[0049] Figure 6 shows the assembly from Figures 1 and 2 in a schematic plan view corresponding to the view in Figure 5, with the collecting container in the transport position, Figure 7 shows an assembly with a collecting container according to a second embodiment in a plan view corresponding to Figures 5 and 6, with the collecting container in the working position,

[0050] Figure 8 shows the assembly from Figure 7, with the collecting container in an intermediate position,

[0051] Figure 9 shows the assembly from Figures 7 and 8, with the collecting container in the transport position,

[0052] Figure 10 shows, in a plan view corresponding to Figures 5 to 9, an assembly with a collecting container according to a third embodiment, wherein the collecting container assumes the working position,

[0053] Figure 11 shows the assembly from Figure 10, with the collecting container in the transport position,

[0054] Figure 12 shows, in a plan view corresponding to Figures 5 to 11, an assembly with a collecting container according to a fourth embodiment, wherein the collecting container assumes the working position,

[0055] Figure 13 shows the assembly from Figure 12, with the collecting container in the transport position,

[0056] Figure 14 shows a collecting container according to a fifth embodiment in a perspective view,

[0057] Figure 15 is a view of the collecting container from Figure 14, wherein a covering of the collecting container is omitted, Figure 16 is a perspective view of a collecting container according to a sixth embodiment, wherein a covering of the collecting container is omitted,

[0058] Figure 17 shows a detailed view of an area of ​​the assembly from Figures 1 to 6, in which the collecting container according to the first embodiment is coupled to the motor-driven hand tool.

[0059] Figure 18 shows a longitudinal section through the area of ​​Figure 17,

[0060] Figure 19 shows a longitudinal section corresponding to Figure 18, with the collecting container unlocked by the motor-driven hand tool,

[0061] Figure 20 shows a longitudinal section corresponding to Figures 18 and 19, wherein the collecting container is decoupled from the motor-driven hand tool,

[0062] Figure 21 is a detailed view of the motor-driven hand tool from Figures 17 to 19, wherein the collecting container is decoupled from the motor-driven hand tool,

[0063] Figure 22 shows a nozzle cover of the collecting container from Figures 17 to 20 in a perspective, isolated view,

[0064] Figure 23 shows the nozzle cover from Figure 22 in another perspective, isolated view,

[0065] Figure 24 shows the assembly from Figures 1 and 2 in a schematic representation, with the collecting container being emptied,

[0066] Figure 25 shows a variant of the assembly from Figure 24 in a schematic representation, wherein the collecting container is emptied, Figure 26 shows the collecting container according to the first embodiment from Figures 3 and 4 in another perspective representation, and

[0067] Figure 27 shows a variant of the collecting container from Figure 26.

[0068] Figure 1 shows a hand tool system 10.

[0069] The hand tool system 10 includes a storage container 12 and an assembly 14 having a motor-driven hand tool 16 and a collecting container 18 for workpiece particles.

[0070] In this example, the motor-driven hand tool 16 is a hand-held circular saw. However, this is purely exemplary.

[0071] The collecting container 18 is fluidically coupled to the hand tool 16, so that when working with the hand tool 16, an air-workpiece particle mixture can be introduced from the hand tool 16 into the collecting container 18.

[0072] For this purpose, the collecting container 18 has a connecting piece 20, which forms an inlet opening 21, and a flexible container body 22, in which a certain amount of workpiece particles can be received.

[0073] The connecting piece 20 is designed to be coupled to the hand tool 16 at its free end 24. At its opposite end, the connecting piece 20 opens into the container body 22.

[0074] The container body 22 comprises a supporting structure 26 constructed from a plurality of rigid struts 28 connected to one another via joints 30. The struts 28 and joints 30 form a folding mechanism 31, which will be explained below.

[0075] Furthermore, the container body 22 comprises an outer skin 32, which is formed as a covering 34 enclosing the support structure 26. It is noted that in the illustrations of Figures 1, 2, 5, and 6, the outer skin 32 is not shown for reasons of better visibility of the support structure 26.

[0076] The container body 22 assumes a transport position in Figures 1 and 2.

[0077] Furthermore, in the illustration according to Figure 1, the assembly 14 is arranged inside the storage container 12. A lid of the storage container 12 is not shown. It should be noted that, particularly in the illustration according to Figure 1, i.e., in a situation in which the assembly is arranged inside the storage container 12, the collecting container 18 is fluidically coupled to the hand tool 16. This is made possible by the compactness of the transport position.

[0078] A main extension 36 of the container body 22, i.e., the direction of the relatively largest length dimension of the container body 22, runs transversely to a main flow direction 38. In this context, the main flow direction 38 runs from an outer skin surface supporting the connecting piece 20 toward an opposite outer skin surface. It is understood that the main flow direction 38 is defined independently of whether or not an air-workpiece particle mixture actually flows from the hand tool 16 into the collecting container 18.

[0079] Furthermore, a height 42 of the container body 22 in the transport position is at most as large as a height 46 of the hand tool 16 defined vertically on a support plate 44 of the hand tool 16. In other words, a height 42 of the container body 22 in the transport position does not exceed the height 46 of the hand tool 16.

[0080] Furthermore, a length 48 of the container body 22 along a longitudinal direction 50 of the hand tool 16 amounts to a maximum of 50% of a length 52 of the support plate 44 when the container body 22 is in the transport position. In the example shown, the length 48 of the container body 22 amounts to approximately 20% of the length 52 of the support plate 44. Furthermore, a width projection 54 of the container body 22 over a width 56 of the support plate 44 in the transport position amounts to approximately 40% of the width 56 of the support plate 44.

[0081] Figures 3 to 6 show the collecting container 18 according to the first embodiment in more detail. Figures 4 and 6 each show the transport position of the container body 22. Figures 3 and 5 show an operating position of the container body 22, which will be explained below.

[0082] In the illustrated embodiment, the support structure 26 is polygonal in a lateral view with respect to the main flow direction 34. In this context, the joints 30 form the polygon corners of the polygon shape, and the struts 28 form the polygon edges.

[0083] The polygon in this case has five polygon corners.

[0084] In the transport position, a polygon corner, ie a joint 30, is accommodated to form a concave outer peripheral section between two polygon edges, ie between two struts 28.

[0085] As a result, in the transport position, an outer skin section, ie a section of the outer skin 32, is folded into an interior of the container body 22.

[0086] By means of the folding mechanism 31, the container body 22 can be transferred into the working position, which is shown in Figures 3 and 5. In the working position, the container body 22 extends along the main flow direction 38. This means that a largest outer dimension of the container body 22 is oriented in the same direction as the main flow direction 38.

[0087] In the working position, the outer skin 32 encloses a first volume VI, which is much larger than a second volume V2 that encloses the outer skin 32 in the transport position. Thus, in the working position, a comparatively large quantity of workpiece particles can be accommodated inside the container body 22.

[0088] In the working position, the collecting container 18 has at least a first outer skin length dimension Lmax, which has a greatest length compared to the other outer skin length dimensions of the collecting container 18.

[0089] In the illustrated embodiment, the first outer skin length dimension Lmax is formed by a region of the outer skin 32 which rests on one of the struts 28.

[0090] The first outer skin length dimension Lmax corresponds to the length of the longest strut 28 of the collecting container 18.

[0091] The fact that in the working position, the first volume V1 enclosed by the outer skin 32 is much larger than the second volume V2 enclosed in the transport position, while at the same time the container body 22 is extremely compact in the transport position, is due to the fact that the first outer skin length dimension Lmax defines a maximum length of the container body in the transport position. In other words, the first outer skin length dimension Lmax determines the maximum external dimension of the container body 22 in the transport position.

[0092] It is understood that the container body 22 can also be transferred from the working position back into the transport position by means of the folding mechanism 31. In other words, the container body 22 can optionally assume either the transport position or the working position by using the folding mechanism 31.

[0093] In addition, the outer skin 32 comprises at least one elastically deformable outer skin section 58.

[0094] The folding mechanism 31 is configured such that the elastically deformable outer skin section 58 is maximally elastically stretched in an intermediate position which the container body 22 assumes when it is transferred from the transport position to the working position and vice versa.

[0095] As a result, the container body 22 can be held mechanically stable in the working position and in the transport position by means of the elastically deformable outer skin section 58. The intermediate position is mechanically unstable.

[0096] Figures 7, 8, and 9 show the assembly 14, with the collecting container 18 designed according to a second embodiment. Only the differences from the first embodiment will be explained below. Identical or corresponding components are provided with the same reference numerals.

[0097] As before, the support structure 26 is polygonal in a lateral view with respect to the main flow direction 34, wherein the joints 30 again form the polygon corners of the polygon shape and the struts 28 again form the polygon edges.

[0098] However, the polygon in this case only has four polygon corners.

[0099] A further difference is that the main extension 36 of the container body 22 in the transport position (see Figure 9) no longer runs transversely, but at an angle of approximately 30 degrees to the main flow direction 38.

[0100] This results in the situation that the container body 22 in the transport position has no width overhang beyond the width 56 of the support plate 44.

[0101] The length 48 of the container body 22 along the longitudinal direction 50 of the hand tool 16 is now approximately 70% of a length 52 of the support plate 44 when the container body 22 is in the transport position.

[0102] For further details, please refer to the explanations regarding the collecting container 18 according to the first embodiment. Figures 10 and 11 show the assembly 14, with the collecting container 18 being designed according to a third embodiment. Only the differences from the previously mentioned embodiments will be explained below. Identical or corresponding components are provided with the same reference numerals.

[0103] In this embodiment, the struts 28 and the joints 30 form a cross rod 60. In the working position (see Figure 10), the central regions of struts assigned to each other in pairs thus overlap in a cross-like manner.

[0104] In the transport position (see Figure 11), the paired struts are essentially placed on top of each other.

[0105] In this context, the first outer skin length dimension Lmax is formed by a region of the outer skin 32 which rests on one of the cross-shaped struts 28.

[0106] In other words, the first outer skin length dimension Lmax again corresponds to the length of the longest strut 28.

[0107] In contrast to the aforementioned embodiments, in the third embodiment the outer skin as a whole is elastically deformable.

[0108] The width overhang in the transport position of the container body now amounts to approximately 15%.

[0109] The length 48 of the container body 22 along the longitudinal direction 50 of the hand tool 16 is now approximately 40% of a length 52 of the support plate 44 when the container body 22 is in the transport position.

[0110] Figures 12 and 13 show the assembly 14, with the collecting container 18 constructed according to a fourth embodiment. Only the differences from the previously mentioned embodiments will be explained below. Identical or corresponding components are provided with the same reference numerals. In this embodiment, the struts 28 are each C-shaped.

[0111] They each have a joint 30 at the ends of the C-shape, via which the struts 28 are connected to one another in an articulated manner.

[0112] In the illustrated embodiment, all joints 30 have the same joint axis. The struts 28 can thus be rotated relative to each other in a fan-like manner and can thus be adjusted between the working position, in which the struts 28 are fanned out (see Figure 12), and the transport position, in which the struts 28 are stacked on top of each other (see Figure 13).

[0113] In this context, the first outer skin length dimension Lmax is formed by an arc height of the C-shaped struts 28.

[0114] In contrast to the aforementioned embodiments, in the fourth embodiment, the outer skin 32 can be designed entirely without an elastic section. Thus, the outer skin as a whole is not elastically deformable.

[0115] The width overhang in the transport position of the container body now amounts to approximately 15%.

[0116] The length 48 of the container body 22 along the longitudinal direction 50 of the hand tool 16 is now approximately 40% of a length 52 of the support plate 44 when the container body 22 is in the transport position.

[0117] Figures 14 and 15 show a fifth embodiment of the collecting container 18. The collecting container 18 according to the fifth embodiment is a variant of the collecting container 18 according to the second embodiment (see Figures 7 to 9). Therefore, only the differences from the second embodiment will be explained below. Identical or corresponding components are provided with the same reference numerals.

[0118] In the collecting container 18 according to the fifth embodiment, the outer skin 32 has a serrated section 62 in the working position. This serves to enlarge the surface area of ​​the outer skin 32, while at the same time allowing the outer dimensions of the container body 22 to be kept the same as in a collecting container 18 with an outer skin 32 without the serrated section. This can improve the filtering function of the outer skin 32.

[0119] The serrated section 62 is formed by two of the struts 28 of the support structure 26 being serrated (see Figure 15). The serrated struts 28 are additionally provided with the reference numeral 64a and the reference numeral 64b, respectively.

[0120] The teeth of the serrated struts 64a, 64b are arranged such that, when viewed along the main flow direction 38, a circumference of the container body 22 along the main flow direction 38 remains constant in amount.

[0121] This is achieved by the arrangement of the points of the serrated struts 64a, 64b. For better understanding, an imaginary zero line NI of the points is drawn in Figure 15 for the serrated strut 64a. An imaginary zero line N2 is drawn for the serrated strut 64b.

[0122] The zero lines NI, N2 correspond to the course of a straight, ie non-serrated strut, which could be used instead of the serrated struts 64a, 64b.

[0123] In addition, several exemplary circumferences 66a, 66b, 66c are illustrated in Figure 15.

[0124] The points of the struts 64a, 64b, ie, the corresponding peaks and valleys, extend evenly on both sides of the respective zero line N1, N2. Furthermore, the points of the struts 64a, 64b each extend in a single plane.

[0125] However, this plane is inclined relative to the side surfaces of the collecting container 18 defined by the respective struts 64a, 64b. More precisely, the planes in which the prongs of the struts 64a, 64b extend are inclined relative to the side surfaces of the collecting container 18 defined by the respective struts 64a, 64b such that the plane in which the prongs extend forms the same angle with each of these planes.

[0126] Thus, the serrated portion 62 extends over the side surface shown at the front in Figures 14 and 15, the side surface shown at the rear in Figures 14 and 15, and the side surface shown at the top in Figures 14 and 15.

[0127] Due to the inclination of the planes in which the points of the struts 64a, 64b extend, the corresponding peaks and valleys of the points compensate for each other such that the circumference of the container body 22 remains constant along the main flow direction 38. The exemplary circumferences 66a, 66b, 66c in Figure 15 are therefore equal.

[0128] Consequently, the outer skin 32 can be formed without an elastic section. Furthermore, the outer skin 32, especially when unfolded, has a comparatively simple geometry.

[0129] In the embodiment according to Figures 14 and 15, the outer skin 32 is made from a continuous piece of material, ie not composed of several parts.

[0130] Figure 16 shows a sixth embodiment of the collecting container 18. The collecting container 18 according to the sixth embodiment is a variant of the collecting container 18 according to the fifth embodiment (see Figures 14 and 15). Therefore, only the differences from the fifth embodiment will be explained below. Identical or corresponding components are provided with the same reference numerals.

[0131] Again, for a better understanding of the serrated strut 64a, an imaginary zero line NI of the serrations is drawn.

[0132] In addition, several exemplary perimeters 66a, 66b, 66c are again illustrated in Figure 16. In the sixth embodiment, the support structure 26 comprises only a single serrated strut 64a.

[0133] As before, the points of strut 64a, ie, the corresponding peaks and valleys, extend evenly on both sides of the zero line NI. Furthermore, the points of strut 64a extend in one plane.

[0134] As already explained in connection with Figures 14 and 15, the plane in which the prongs extend is inclined relative to the side surfaces of the collecting container 18 delimited by the 64a, wherein the plane in which the prongs extend encloses the same angle with each of these side surfaces.

[0135] The effect of increasing the area while maintaining the same circumference of the outer skin 32 is also achieved in this way.

[0136] It is understood, however, that in the example of Figure 16, the circumference in general and in particular the exemplary circumferences 66a, 66b, 66c, are constant in amount when viewed transversely to the main flow direction 38.

[0137] In the fifth and sixth embodiments (see Figures 14 to 16), corrugated struts can also be used instead of serrated struts 64a, 64b. This ensures that the outer skin 32 of the collecting container 18 has a corrugated section. Corrugated struts differ from serrated struts in that they do not have any straight sections, at least in the corrugation area. The above explanations apply equally to collecting containers 18 whose outer skin 32 has a corrugated section.

[0138] Figures 17 to 19 show in detail a portion of the assembly 14 from Figures 1 to 6, in which the collecting container 18 according to the first embodiment is coupled to the motor-driven hand tool 16. This means that the collecting container 18 is fluidly coupled to the hand tool 16 via the connecting piece 20, so that an air-workpiece particle mixture can be introduced from the hand tool 16 into the collecting container 18.

[0139] In the illustrated embodiment, the connecting piece 20 is provided on a dimensionally stable section 68 of the outer skin 32. As a result, the collecting container 18, or more precisely the container body 22, has a comparatively high degree of dimensional stability in the region of the connecting piece 20, so that the collecting container 18 can be easily handled for coupling to and detaching from the hand tool 16.

[0140] The connecting piece 20 is also dimensionally stable.

[0141] Furthermore, the dimensionally stable section 68 and the connecting piece 20 are manufactured in one piece.

[0142] The free end 24 of the connecting piece 20 protrudes from the container body 22. Furthermore, a bearing block 72 is positioned on the outer circumference 70 of the connecting piece 20, via which a piece cover 74 is rotatably mounted on the connecting piece 20.

[0143] An associated rotation axis 76, about which the nozzle cover 74 is rotatable, runs transversely to a longitudinal extension direction 78 of the connecting nozzle 20.

[0144] The rotation axis 76 is spaced from the outer circumference 70 of the connecting piece 20. The distance between the rotation axis 76 and the outer circumference 70 is therefore greater than zero.

[0145] Thus, the nozzle cover 74 can selectively close (see Figure 20) and release (see Figures 17 to 19) the connection nozzle 20 at the free end by corresponding rotation about the rotation axis 76.

[0146] The collecting container 18 can only be coupled to the hand tool 16 if the nozzle cover 74 releases the connection nozzle 20.

[0147] The coupled state is characterized by the fact that a connection piece side

[0148] Sealing section 80, which is positioned on an inner circumference 82 of the connecting piece 20 adjacent to the free end 24, is in contact with a hand tool-side sealing section 84 (see Figures 18 and 19).

[0149] When the nozzle cover 74 closes the connection nozzle 20, ie when the nozzle cover 74 is in the closed position, a cover-side sealing section 86 lies at least partially opposite or on the connection nozzle-side sealing section 80 (see Figure 20).

[0150] In this case, a sealing element 88 in the form of a sealing lip is arranged on the connection piece-side sealing section 80.

[0151] A sealing element 90 in the form of a sealing lip is also provided on the hand tool-side sealing section 84.

[0152] The nozzle cover is pre-tensioned into the closed position by means of a spring device 92.

[0153] The nozzle cover 74 is shown in isolation in Figures 22 and 23.

[0154] The nozzle cover 74 has a closure portion 94 which is designed to selectively close the free end 24 of the connection nozzle 20.

[0155] Furthermore, the nozzle cover 74 has an actuating portion 96 comprising an actuating surface 98 designed to be subjected to a compressive force by a human finger in order to move the nozzle cover 74 from the closed position to the open position, counter to the force exerted by the spring device 92. The actuating portion 96 is thus designed for manually releasing the free end 24 of the connecting nozzle 20.

[0156] The nozzle cover 74 is designed as a single, continuous component. Accordingly, the closure portion 94 and the actuating portion 96 are also designed as a single piece but separately from one another. The closure portion 94 and the actuating portion 96 form an obtuse angle 100° in a plane of rotation, i.e., viewed along the axis of rotation 76.

[0157] In addition, the locking portion 94 and the actuating portion 96 are positioned on opposite sides of the rotation axis 76.

[0158] In other words, the closure portion 94 and the actuating portion 96 are spaced apart from each other.

[0159] Furthermore, a retaining rib 102 with a mounting bevel 104 is formed on the closure section 94.

[0160] The retaining rib 102 serves to lock the collecting container 18 in a position coupled to the motor-driven hand tool 16 (see Figures 18 and 19).

[0161] The retaining rib 102 is positioned on a side of the closure portion 94 facing the connecting piece 20. Accordingly, in the closed position, the retaining rib 102 projects into the interior of the connecting piece 20.

[0162] A recess 106 is also provided on the closure section 94.

[0163] The recess 106 serves to receive a portion of the hand tool 16 in a position of the collecting container 18 coupled to the motor-driven hand tool 16 (see Figure 18).

[0164] The recess 106 is also positioned on a side of the closure section 84 facing the connecting piece 20.

[0165] The retaining rib 102 is closer to the rotation axis 76 than the recess 106.

[0166] An outlet 108 of the motor-driven hand tool 16, which is part of the assembly 14, can be seen in detail in Figure 21. The outlet 108 serves to discharge the air-workpiece particle mixture from the hand tool 16. A retaining bead 112 for coupling the collecting container 18 for workpiece particles is arranged on an outer circumference 110 of the outlet 108.

[0167] The retaining bead 112 is also provided with a mounting bevel 114.

[0168] Furthermore, the hand tool 16 has a contact area 116. This is designed to be contacted by the nozzle cover when the collecting container 18 is coupled to the hand tool 16.

[0169] The nozzle cover 74 can thus lock the collecting container 18 to the hand tool 16 in a situation in which the collecting container 18 is coupled to the hand tool 16. For this purpose, the retaining rib 102 of the nozzle cover 74 engages behind the retaining bead 112 of the hand tool 16. Furthermore, the nozzle cover 74 contacts the contact area 116 of the hand tool 16, at least in sections, in the area of ​​the recess 106 (see Figures 17 and 18).

[0170] Due to the fact that the nozzle cover 74 is pre-tensioned into its closed position by means of the spring device 92, the locked state of the collecting container 18 on the hand tool 16 can only be released by the application of force.

[0171] This can be done by applying an actuating pressure force to the actuating section 96.

[0172] By means of such an actuation, the actuating section 96 can be moved closer to the outer circumference 70 of the connecting piece in a view along the rotation axis 76, so that the closure section lifts off from the hand tool 16.

[0173] In this way, the nozzle cover 74 can be brought into a release position in which it releases the connecting nozzle 20 at the free end 24 and encloses an angle 118 of more than 90° with a connection cross-section of the connecting nozzle 20 (see Figure 19). In such a position of the nozzle cover 74, the connecting nozzle 20 can be pulled off the outlet 108 with little resistance or pushed onto the outlet 108. In other words, in such a position of the nozzle cover 74, the collecting container 18 can be easily coupled to the hand tool 16 and just as easily uncoupled from it.

[0174] If the nozzle cover 74 is not actuated in a state in which the collecting container 18 is not connected to the hand tool, it closes the connecting nozzle 20 (see Figure 20). In this position, the actuating section 96 is located on a side of the rotation axis 76 facing away from the connecting nozzle 20.

[0175] In order to release the free end 24 of the connecting piece 20, the piece cover 74 must now be actuated such that the actuating section 96 is moved to a side of the rotation axis 76 facing the connecting piece 20 (see Figure 19).

[0176] Above, the nozzle cover 74 and the associated features of the collecting container 18 and the motor-driven hand tool 16 were explained using the collecting container 18 according to the first embodiment (see Figures 1 to 6). However, it should be understood that the explanations regarding the nozzle cover 74 and the associated features of the collecting container 18 and the motor-driven hand tool 16 apply equally to the other embodiments of the collecting container 18.

[0177] As can be seen from Figure 24, the dimensionally stable portion 68 of the outer skin 32 further comprises an emptying opening 120.

[0178] The emptying opening 120 serves to remove workpiece particles from the container body 22, e.g., when machining of a workpiece is completed and the container body 22 is to be returned to the transport position, or when a limit fill level of the container body 22 with workpiece particles is reached during machining of the workpiece. The collecting container 18 further comprises a closure means 122, which can be fastened to the container body 22 at least in a closed position, so that the emptying opening 120 can be selectively closed by means of the closure means 122.

[0179] In the illustrated embodiment, the closure means 122 is designed as a dimensionally stable lid 124.

[0180] The section of the dimensionally stable section 68 of the outer skin 32 surrounding the emptying opening 120 further forms a dimensionally stable frame 126 which delimits the emptying opening 120.

[0181] The closure means 122, more precisely the lid 124, is pivotally attached to the container body 22, more precisely to the dimensionally stable frame 126, via a hinge 128.

[0182] In the present case, the connecting piece 20 is also arranged on the closure means 122, i.e., on the cover 124. The connecting piece 20 and the cover 124 are formed as a single piece.

[0183] Thus, the inlet opening 21 and the discharge opening 120 are positioned on the same outer skin surface of the outer skin 32.

[0184] The collecting container 18 further comprises a locking unit 130, shown only schematically in Figure 24, by means of which the closure means 122 can be locked in a closed position on the frame 126.

[0185] The locking unit 130 comprises a first actuating surface 130a and a second actuating surface 130b, via which the locking unit 130 can be actuated.

[0186] The first actuating surface 130a and the second actuating surface 130b are spaced apart by a maximum of 15 cm. Thus, the first actuating surface 130a and the second actuating surface 130b can be grasped simultaneously with different fingers of a single human hand. In other words, the locking unit 130 can be actuated with a single human hand. Figure 24 shows the hand tool 16 in a processing position. In Figure 24, a processing zone 132 is located below the hand tool 16.

[0187] The collecting container 18 is coupled to the hand tool 16. Consequently, in a use position of the collecting container 18, the hinge 128 is positioned on a side of the connecting piece 20 facing away from the processing zone 132.

[0188] On the one hand, this has the effect that in the use position of the collecting container 18, ie in the position shown in Figure 24, the force of gravity acts in the closing direction on the closure means 122 and the container body 22.

[0189] Furthermore, in a use position of the collecting container 18, ie in the position shown in Figure 24, an emptying direction 134, which is perpendicular to an opening cross-section of the emptying opening 120 and, starting from an interior of the container body 22, points through the emptying opening 120, in the direction of the processing zone 132.

[0190] More specifically, in a situation in which the closure means 122 is in an open position, the emptying direction 134 has an extension component 136 pointing vertically in the direction of the processing zone 132.

[0191] It is emphasized that the collecting container 18 is coupled to the hand tool 16 both in an open position of the closure means 122 and in a closed position of the closure means 122.

[0192] Figure 25 shows a variant of the embodiment of Figure 24. The discharge opening 120 is arranged on an outer skin surface of the outer skin 32, which is located laterally with respect to the main flow direction 38.

[0193] Figure 25 also shows the hand tool 16 in a processing position. Here, the processing zone 132 is again located below the hand tool 16. The hinge 128 is now arranged on a side of the emptying opening 120 facing away from the connecting piece 20. Thus, when the closure means 122 is open, the emptying direction 134 again points toward the processing zone. In the variant from Figure 25, the emptying direction 134 is oriented vertically. It therefore only has component 136, which points vertically downward toward the processing zone 132.

[0194] Both with the collecting container 18 according to the variant from Figure 24 and with the collecting container according to the variant from Figure 25, a method for emptying a collecting container 18 of an assembly 14 with a motor-driven hand tool 16 and a collecting container 18 can be carried out.

[0195] In an initial state, the collecting container 18 is coupled to the hand tool 16, so that an air-workpiece particle mixture can be introduced from the hand tool 16 into the collecting container 18. This coupling remains intact throughout the entire process for emptying the collecting container 18.

[0196] In a first step, the closure means 122 is unlocked by actuating the locking unit 130.

[0197] Subsequently, in the variant according to Figure 24, the section of the container body 22 of the collecting container 18 that supports the dimensionally stable frame 126 is tilted upward against the force of gravity relative to the hand tool 16 and the closure means 122. As already mentioned, the coupling between the collecting container 18 and the hand tool 18 is maintained.

[0198] Now, the component 136 of the emptying direction 134 points vertically downwards in the direction of the processing zone 132, so that workpiece particles can be easily removed from the interior of the container body 22.

[0199] For this purpose, the assembly 14 comprising the motor-driven hand tool 16 and the collecting container 18 can be held, for example, over a bucket or other suitable container. It is important that the hand tool 16 is held in the same position it assumes during use for material processing.

[0200] When a sufficient amount of workpiece particles has been removed from the interior of the container body 22, the section of the container body 22 that supports the dimensionally stable frame 126 is tilted downward again in the direction of gravity and the closure means 122 is locked to the frame 126 by means of the locking unit 130.

[0201] In the variant according to Figure 25, the closure means 126 is folded downwards supported by gravity.

[0202] Now the emptying direction 134 points vertically downwards in the direction of the processing zone 132, so that workpiece particles can be easily removed from the interior of the container body 22.

[0203] When a sufficient amount of workpiece particles has been removed from the interior of the container body 22, the closure means 126 is returned to its closed position against the force of gravity and locked there to the frame 126 by means of the locking unit 130.

[0204] It is again understood that the explanations of Figures 24 and 25 apply not only in connection with the first embodiment of the collecting container 18, but can be combined with all embodiments explained above.

[0205] Figure 26 shows the collecting container 18 according to the first embodiment from Figures 3 and 4 in another perspective view.

[0206] Figure 26 shows that the outer skin 32 has a light-incidence section 138 that is translucent. In the illustrated embodiment, the light-incidence section is translucent but not transparent.

[0207] It is made of a textile material with a white or light grey colour that is dimensionally unstable.

[0208] The light incidence section 138 thus contributes to a filtering effect of the outer skin 32. Furthermore, light can enter the interior of the container body via the light incidence section 138.

[0209] In addition, the outer skin 32 has a viewing window section 140.

[0210] This is made of an optically transparent, shape-stable plastic material. This material can also be referred to as plastic film.

[0211] In the illustrated embodiment, the viewing window section 140 is sewn to the remaining sections of the outer skin 32, ie it is connected to the remaining sections of the outer skin 32 via a sewing thread.

[0212] It is understood that in other embodiments, the viewing window portion 140 is alternatively or additionally connected to the remaining portions of the outer skin 32 by means of a weld seam, an adhesive seam or other suitable means.

[0213] The viewing window section 140 also has an antistatic section 142, which in this case is embodied as an electrically conductive coating. It is understood that the antistatic section may, but need not, fill the entire surface of the viewing window section 140.

[0214] The antistatic portion 142 is further electrically connected to an electrical connection contact 144 arranged on the connection piece 20.

[0215] Alternatively, the antistatic section 142 can comprise a material with hydrophilic properties, so that an electrostatic charge can be released into humid room air by means of this material. In other words, when using a hydrophilic material, potential equalization can occur between the antistatic section and the humidity of the room air. The electrical connection contact 144 is designed to enable electrical potential equalization between the antistatic section 142 and the hand tool 16.

[0216] In this way, an electrostatic charge of the viewing window section 140 is reliably avoided or at least reduced to such an extent that the function of the viewing window section 140 is not restricted.

[0217] In the present exemplary embodiment, both the viewing window section 140 and the light incidence section 138 are arranged on an outer skin surface of the outer skin 32 which is located laterally with respect to the main flow direction 38.

[0218] The light incidence section 138 is formed on a first outer skin surface 146 of the outer skin 32 and the viewing window section 140 is formed on a second outer skin surface 148 of the outer skin 32.

[0219] The first outer skin surface 146 and the second outer skin surface 148 adjoin one another at an outer skin edge 150.

[0220] The light incidence section 148 and the viewing window section 140 thus delimit a transmitted light zone 152 which extends inside the container body 22.

[0221] The transmitted light zone 152 comprises at least one viewing axis 154 which connects at least one point of the light incidence section 138 with at least one point of the viewing window section 140 in a straight line.

[0222] Light can thus enter the interior of the container body 22 through the light incidence section 138. This allows a user of the collecting container 18 to visually determine the fill level of the collecting container 18 with high precision through the viewing window section 140.

[0223] Optionally, the viewing window section 140 is provided with a fill level scale 156 for this purpose. It is understood that the same effects and advantages can also be achieved if the light incidence section 138 and the viewing window section 140 are formed on outer skin surfaces of the outer skin 32 that are at least partially opposite one another. This configuration also results in a straight line of sight that connects at least one point of the light incidence section 138 with at least one point of the viewing window section 140.

[0224] Figure 27 shows a further variant of the collecting container 18 according to the first embodiment from Figures 3 and 4.

[0225] In this variant, the closure means 122, designed as a lid 124, is made of a transparent, dimensionally stable plastic material. The lid 124 thus encompasses the light incidence section 138.

[0226] Thus, the light incidence section 138 and the connecting piece 20 are arranged on the same outer skin surface.

[0227] The viewing window section 140 is realized in the same way as in the embodiment according to Figure 26.

[0228] Since in the variant shown in Figure 27 both the light incidence section 138 and the viewing window section 140 are made of a transparent material, the function of the light incidence section 138 and the viewing window section 140 can also be reversed. In this context, the cover 124 includes the viewing window section 140.

[0229] It is again understood that the explanations of Figures 26 and 27 apply not only in connection with the first embodiment of the collecting container 18, but can be combined with all embodiments explained above.

[0230] 10 Hand tool system

[0231] 12 Storage container

[0232] 14 Assembly

[0233] 16 motor-driven hand tools

[0234] 18 collecting containers

[0235] 20 connecting pieces

[0236] 21 Inlet opening

[0237] 22 Container body

[0238] 24 free end of the connecting piece

[0239] 26 Supporting structure

[0240] 28 Strut

[0241] 30 joint

[0242] 31 Folding mechanism

[0243] 32 Outer skin

[0244] 34 covering

[0245] 36 Main extension of the container body

[0246] 38 Main flow direction

[0247] 40 Center axis of the connecting piece

[0248] 42 Height of the container body in the transport position

[0249] 44 Support plate of the hand tool

[0250] 46 Height of the hand tool

[0251] 48 Length of the container body in the transport position

[0252] 50 Longitudinal direction of the hand tool

[0253] 52 Length of the support plate

[0254] 54 Width projection of the container body in the transport position

[0255] 56 Width of the support plate

[0256] 58 elastically deformable outer skin section 60 cross rods

[0257] 62 jagged section of the outer skin

[0258] 64a serrated strut

[0259] 64b serrated strut

[0260] 66a exemplary circumference of the container body

[0261] 66b exemplary circumference of the container body

[0262] 66c exemplary circumference of the container body

[0263] 68 dimensionally stable section of the outer skin

[0264] 70 Outer circumference of the connection piece

[0265] 72 bearing block

[0266] 74 nozzle cover

[0267] 76 axis of rotation

[0268] 78 Longitudinal direction of the connecting piece

[0269] 80 connection piece side sealing section

[0270] 82 Inner circumference of the connection piece

[0271] 84 hand tool side sealing section

[0272] 86 lid be tiger sealing section

[0273] 88 Sealing element

[0274] 90 sealing element

[0275] 92 Spring device

[0276] 94 closure section

[0277] 96 operating section

[0278] 98 operating area

[0279] 100 obtuse angle

[0280] 102 retaining rib

[0281] 104 Mounting slope

[0282] 106 recess

[0283] 108 Outlet 110 Outer circumference of the outlet

[0284] 112 retaining bead

[0285] 114 Mounting slope

[0286] 116 Anl ageb er ei ch

[0287] 118 angles

[0288] 120 Emptying opening

[0289] 122 closure devices

[0290] 124 lids

[0291] 126 dimensionally stable frame

[0292] 128 Hinge

[0293] 130 locking unit

[0294] 130a first actuating surface

[0295] 130b second actuating surface

[0296] 132 processing zone

[0297] 134 Drainage direction

[0298] 136 vertical extension component of the emptying direction

[0299] 138 Light incidence section

[0300] 140 viewing window section

[0301] 142 anti-static section

[0302] 144 electrical connection contact

[0303] 146 first outer skin surface

[0304] 148 second outer skin surface

[0305] 150 outer skin edge

[0306] 152 transmitted light zone

[0307] 154 Sight axis

[0308] 156 Level scale a

[0309] Lmax first outer skin length dimension VI first volume

[0310] V2 second volume

[0311] NI imaginary zero line of the serrated strut 64a

[0312] N2 imaginary zero line of the serrated strut 64b

Claims

Claims 1. A collecting container (18) for workpiece particles, for coupling to a motor-driven hand tool (16), wherein the motor-driven hand tool (16) can be fluidically coupled to the collecting container (18) by means of the coupling, so that an air-workpiece particle mixture can be introduced from the motor-driven hand tool (16) into the collecting container (18), having a shape-flexible container body (22) which is delimited by an outer skin (32), and having a connecting piece (20) for coupling the container body (22) to the hand tool (16), wherein the outer skin (32) has a light incidence section (138) which is translucent, wherein the outer skin (32) has a viewing window section (140) which is transparent, and wherein at least one point of the light incidence section (138) is in contact with at least one point of the viewing window section (140). connected by a straight line of sight (154).

2. Collection container (18) according to claim 1, wherein the light incidence section (138) and the viewing window section (140) define a transmitted light zone (152) located in the interior of the container body (22) and encompasses the viewing axis (154).

3. The collecting container (18) according to claim 1 or 2, wherein the light incidence section (138) is made of a shape-stable material.

4. A collection container (18) according to any one of the preceding claims, wherein the light incidence section (138) comprises a textile material.

5. A collecting container (18) according to any one of the preceding claims, wherein the light incidence section (138) comprises a plastic material.

6. Collecting container (18) according to one of the preceding claims, wherein the Viewing window section (140) is made of a dimensionally unstable material.

7. Collecting container (18) according to one of the preceding claims, wherein the viewing window section (140) is connected to the remaining sections of the outer skin (32) via a weld seam, an adhesive seam or a sewing thread.

8. The collecting container (18) according to any one of the preceding claims, wherein the light incidence section (138) is formed on a first outer skin surface (146) of the outer skin (32) and the viewing window section (140) is formed on a second outer skin surface (148) of the outer skin (32), wherein the first outer skin surface (146) and the second outer skin surface (140) adjoin one another at an outer skin edge (150).

9. Collecting container (18) according to one of claims 1 to 7, wherein the light incidence section (138) and the viewing window section (140) are formed on outer skin surfaces of the outer skin (32) which are at least partially opposite one another.

10. Collecting container (18) according to one of the preceding claims, wherein the viewing window section (140) is arranged on an outer skin surface of the outer skin (32) which is laterally located with respect to a main flow direction (38), wherein the main flow direction (38) runs from an outer skin surface carrying the connecting piece (20) in the direction of an outer skin surface opposite in this respect.

11. Collecting container (18) according to one of the preceding claims, wherein the connecting piece (20) is arranged on an outer skin surface of the outer skin (32) which comprises either the light incidence section (138) or the viewing window section (140).

12. Collection container (18) according to one of the preceding claims, wherein the outer skin (32) comprises a textile material outside the light incidence section (138) and outside the viewing window section (140).

13. Collecting container (18) according to one of the preceding claims, wherein an outer skin surface of the outer skin (32), on which the connecting piece (20) is arranged, comprises a dimensionally stable material.

14. Collecting container (18) according to one of the preceding claims, wherein the viewing window section (140) has an antistatic section (142) which is at least partially electrically conductive.

15. Collecting container (18) according to claim 14, wherein an electrical connection contact (144) for electrical potential equalization with respect to the hand tool (16) is provided on the connection piece (20), and the connection contact (144) is electrically conductively connected to the antistatic section (142) of the viewing window section (140).

16. Collecting container (18) according to one of the preceding claims, wherein the viewing window section (140) is provided with a fill level scale (156).

17. Collecting container (18) according to one of the preceding claims, wherein an emptying opening (120) for removing workpiece particles from the container body (22) is arranged in the outer skin (32), and an emptying direction (134) associated with the emptying opening (120) extends from the interior of the container body (22) through the emptying opening (120) and is substantially perpendicular to an opening cross-section of the emptying opening (120), wherein a closure means (122) is provided which can be fastened to the container body (22) at least in a closed position, so that the emptying opening (120) can be selectively closed by means of the closure means (122), and wherein in a use position of the collecting container (18), when the closure means (122) is in an open position, the emptying direction (134) has a vertical direction in the direction of a processing zone pointing extension component (136).

18. Collection container (18) according to one of the preceding claims, wherein the container body (22) comprises a folding mechanism (31) so that the container body (22) can selectively assume a working position in which the outer skin (32) encloses a first volume (VI), and can selectively assume a transport position in which the outer skin (32) encloses a second volume (V2) which is smaller than the first volume (VI), and wherein in the working position, a first outer skin length dimension (Lmax) has a greatest length compared to the other outer skin length dimensions, and in the transport position, the first outer skin length dimension (Lmax) defines a greatest length of the container body (22).

19. Collecting container (18) according to one of the preceding claims, wherein the The connecting piece (20) has a free end (24) which projects relative to the container body (22), and a piece cover (74) is provided which is rotatably mounted on the connecting piece (20) and can selectively close and release the connecting piece (20) at the free end (24).

20. Assembly (14) comprising a motor-driven hand tool (16) and a Collecting container (18) according to one of the preceding claims, wherein the collecting container (18) is fluidly coupled to the hand tool (16) via the connecting piece (20), so that an air-workpiece particle mixture can be introduced into the collecting container (18) from the hand tool (16).

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