Cleaning device, system and method for absorbing and removing material

Abstract

The invention relates to a cleaning device (10a; 10b, 10b; 10c, 10c; 10d) for sucking removal material from a hand-held power tool (12a) and / or a dust collection container (14a) arranged on the hand-held power tool (12a), having at least one suction channel (16a) and a hand-held power tool interface (18a; 18b, 18b; 18c, 18c; 18d) for connecting the suction channel (16a) to a tool-side suction region (20a) of the hand-held power tool (12a).

Description

Technical Field

[0001] The present invention relates to a cleaning device, a system and a method for removing material by suction. Background Art

[0002] It is known that the dust collection container of a handheld power tool is disassembled for cleaning, for example by shaking out and / or blowing out with the aid of compressed air. Summary of the invention

[0003] The present invention proposes a cleaning device for vacuuming removed material from a handheld power tool and / or a dust collection container arranged on the handheld power tool, the cleaning device having at least one suction channel and a handheld power tool interface for connecting the suction channel to a suction area on the tool side of the handheld power tool.

[0004] By means of the configuration of the cleaning device according to the invention, the removed material can be removed from the handheld power tool and / or the dust collection container without having to remove the dust collection container from the handheld power tool. Advantageously, a particularly high level of user comfort can be achieved. Unintentional contamination of the surroundings by removing the dust collection container to remove the removed material from the dust collection container can be prevented. A particularly low-pollution suction removal of the removed material from the handheld power tool and / or the dust collection container can be achieved. A particularly health-friendly cleaning and / or suction removal of the handheld power tool and / or the dust collection container can be achieved.

[0005] The handheld power tool is preferably designed as a grinder, in particular an oscillating grinder, a rotary grinder, a triangular grinder, a belt grinder or an eccentric grinder. Alternatively, it is also conceivable that the handheld power tool is designed, for example, as a milling machine, in particular a slot milling machine or the like; a saw, in particular a circular saw, a jigsaw, a crescent saw or other handheld power tools that appear to be appropriate to a person skilled in the art, in particular for producing material removal.

[0006] The handheld power tool is preferably configured to remove removed material by suction when machining a workpiece with the handheld power tool. The removed material can preferably be removed by suction via the suction area of ​​the handheld power tool. The handheld power tool is particularly configured to remove removed material by suction via the suction area on the tool side when machining a workpiece and preferably blow it into and / or suck it into a dust collection container. The dust collection container is particularly configured to receive the removed material. The handheld power tool preferably has a suction fan for generating an air flow, in particular for removing removed material from the workpiece by suction via the suction area on the tool side.

[0007] “Set” should be understood as specially set, specially designed and / or specially equipped. An object is set for a certain function, which should be understood as the object fulfilling and / or performing the certain function in at least one application and / or operating state.

[0008] The handheld power tool has in particular a tool receiving portion for receiving a tool. The tool can be configured in particular as grinding paper, grinding grid, saw blade, etc., depending on the configuration of the handheld power tool. The tool receiving portion is configured, for example, as a grinding pad, chuck, etc. The suction area on the tool side is preferably arranged on the tool receiving portion and / or the tool. The suction area is preferably defined by at least one suction opening. The tool receiving portion, for example a grinding pad, has at least one suction opening. Alternatively or additionally, it is conceivable that the tool, for example a grinding paper, has a preferably further suction opening.

[0009] The handheld machine tool interface is particularly configured to be connected to the handheld machine tool, preferably mechanically and / or fluidically. The handheld machine tool interface is particularly configured to connect the suction channel to the suction area on the tool side of the handheld machine tool with fluid technology. The handheld machine tool interface is preferably configured to be connected to the tool receiving portion of the handheld machine tool. The handheld machine tool interface particularly has an opening area for the suction channel. The opening area is particularly located on the suction area on the tool side of the handheld machine tool and / or opposite to the suction area on the tool side in a state connected to the handheld machine tool. The handheld machine tool interface preferably has at least one air inlet. At least one air inlet preferably defines the opening area of ​​the handheld machine tool interface. The handheld machine tool interface, for example, has at least one closing element for preferably selectively closing at least one air inlet. The handheld machine tool interface preferably has multiple air inlets. Preferably, the handheld machine tool interface has multiple closing elements, preferably for closing multiple air inlets. The number of air inlets preferably corresponds to the number of closing elements. However, alternatively, it can also be considered that the number of closing elements is greater than or less than the number of air inlets. For example, it is conceivable that the closure element of the handheld power tool interface can close a plurality of, in particular at least two, air inlets.

[0010] In particular, the cleaning device can be used to remove material from the handheld machine tool and / or the dust container by suction via the suction area on the tool side of the handheld machine tool. Preferably, the removed material can be removed by suction from the handheld machine tool and / or the dust container via the handheld machine tool interface and the suction channel. The removal of material by suction to clean the handheld machine tool and / or the dust collector is achieved by means of the cleaning device, in particular by means of an air flow that extends in the opposite direction to the air flow when removing material by suction when machining a workpiece by means of the handheld tool.

[0011] It is further proposed that the handheld machine tool interface has a receiving part for the handheld machine tool, in particular the above-mentioned tool receiving part. A particularly safe and / or suitable connection between the cleaning device and the handheld machine tool can be achieved for removing material from the handheld machine tool and / or the dust collection container by suction via the suction area on the tool side. Advantageously, a particularly efficient and / or low-pollution suction of the handheld machine tool and / or the dust collection container can be achieved. For example, the handheld machine tool can be placed on the cleaning device via the tool receiving part and the receiving part of the cleaning device. In particular, the handheld machine tool, preferably the tool receiving part, can be fixed and / or fastened to the tool receiving part.

[0012] In addition, it is proposed that the handheld machine tool interface has a sealing unit for sealingly connecting to the suction area of ​​the handheld machine tool or has an adapter interface connected to the sealing unit for sealingly connecting to the suction area of ​​the handheld tool. Particularly efficient suction can be achieved. Advantageously, undesirable contamination of the surrounding environment can be prevented when removing materials from the handheld machine tool and / or the dust container via the suction area on the tool side. Particularly high user comfort can be achieved. The sealing unit, for example, includes at least one sealing element. The shape of the sealing unit, especially the sealing element, is preferably constructed corresponding to the tool receiving portion. It is conceivable that the shape of the sealing unit, especially the sealing element, is adjustable, especially for adapting to different tool receiving portions of different handheld machine tools. The sealing unit, preferably the sealing element, can be constructed in an annular manner, for example. The contact surface of the handheld machine tool and the tool receiving portion, especially the grinding pad and / or the tool, such as grinding paper, is preferably part of the sealing unit. The contact surface is preferably made of an elastic material, especially a rubber elastic material, preferably sponge rubber, silicone or similar materials. It is conceivable that the contact surface is movable in a direction perpendicular to the main extension plane of the contact surface, in particular relative to the cleaning device. The "main extension plane" of the structural unit or element can be understood as a plane which is parallel to the largest side of the smallest possible imaginary cuboid that just completely surrounds the structural unit and in particular passes through the center of the cuboid. The contact surface is movable in particular in a vertical direction relative to the base body, in particular for adapting to different tool receptacles and / or for connecting the handheld machine tool interface to the handheld machine tool.

[0013] It is further proposed that, in the state connected to the handheld power tool, the sealing unit closes at least one opening, in particular a bypass opening, of a suction channel of the handheld power tool which is connected to the suction area of ​​the handheld power tool. Advantageously, a particularly intensive suction can be achieved. Advantageously, a particularly thorough cleaning of the handheld power tool and / or the dust collection container can be achieved. Preferably, in the state connected to the handheld power tool, the sealing unit at least substantially completely covers the at least one opening.

[0014] In addition, it is proposed that the handheld machine tool interface has an adaptable opening area for the suction channel, especially the above-mentioned opening area. Advantageously, the handheld machine tool interface can be connected to different handheld machine tools, especially the suction areas on different tool sides. A cleaning device that can be used particularly flexibly can be provided. Advantageously, efficient suction of different handheld machine tools, especially different tool receiving parts, can be achieved. The opening area can be especially adapted to tool receiving parts and / or tools of different sizes, preferably to different grinding pad sizes. Alternatively or additionally, it can be considered that the opening area can be adapted to different types of handheld machine tools, for example, the opening area can be constructed to be adapted to jigsaws and grinders. The opening area is especially set to be used to adapt the suction area on the tool side of different handheld machine tools, especially the suction area on the tool side. The opening area preferably has an adaptable opening cross section. The opening area can preferably be adapted so that the opening cross section of the opening area corresponds to the suction area on the tool side of the handheld machine tool. It can be considered that the opening area can be adapted automatically and / or manually. For example, the automatic adaptation of the opening area can be triggered by connecting the handheld machine tool interface to the handheld machine tool, preferably by means of an identification unit. The identification unit is particularly configured to identify characteristic parameters of the handheld machine tool, preferably a tool receiving portion and / or a tool, for adapting the opening area when connected to the handheld machine tool interface, for example, mechanically, optically, electrically, electronically and / or radio technology. The cleaning device, for example, has a control unit for automatically adapting the opening area, preferably according to the characteristic parameters detected by means of the identification unit. It is conceivable that the control unit is connected to the identification unit at least in terms of control technology. It is conceivable that at least one closing element of the handheld machine tool interface is part of the control unit. The control unit can, for example, be purely mechanical or at least partially electrically and / or electronically constructed. Alternatively or additionally, it is conceivable that the opening area can be adapted by an operating element that can preferably be operated by a user. The operating element can, for example, be constructed as a rotary wheel, a button, a key area or a lever, etc. Preferably, the opening area can be adapted by selectively closing and opening the air inlet by a closing element. By means of at least one closing element, the handheld machine tool interface, preferably the opening area, can be completely closed by fluid technology.

[0015] In addition, it is proposed that the cleaning device has an identification unit for identifying the connection between the handheld machine tool interface and the handheld machine tool. Advantageously, the correct connection between the handheld machine tool interface and the handheld machine tool can be assisted. Automatic suction of the handheld tool and / or the dust collection container can be realized in connection with the connection between the handheld machine tool interface and the handheld machine tool. A particularly high user comfort can be achieved. The identification unit can be constructed, for example, optically, radio-technically, electrically and / or mechanically. It is conceivable that the identification unit includes an operating element that can be operated by the connection between the handheld machine tool and the handheld machine tool interface. The operating element can be constructed, for example, as a button, a lever or the like. Alternatively or additionally, it is conceivable that the identification unit has an electrical and / or optical sensor for identifying the connection between the handheld machine tool interface and the handheld machine tool. It is conceivable that the cleaning device has a suction unit for generating an air flow, in particular for sucking the handheld machine tool and / or the dust collection container. It is also conceivable that the cleaning device has a dust box or the like. Alternatively, it is also conceivable that the cleaning device is constructed without a suction unit. The suction unit, for example, has at least one fan or the like. It is conceivable that the recognition unit at least controls the connection of a material removal unit, preferably a suction unit of a material removal unit, which is technically connected to a suction unit and / or to a cleaning device. For example, the recognition unit is configured to send a signal to a suction unit of the cleaning device and / or a suction unit of the material removal unit when it is recognized that the handheld power tool is connected to the handheld power tool interface, in order to trigger suction of the handheld power tool and / or the dust collection container, for example by means of Bluetooth, WLAN, mobile radio or the like. Alternatively or additionally, it is conceivable that the suction removal can be triggered manually by a user.

[0016] In addition, it is proposed that the cleaning device has an attachment and / or fixed interface for connecting the suction channel to the material removal unit, in particular the above-mentioned material removal unit, such as a vacuum cleaner, in particular a hose pipe connection, in particular a tool-free connection. Advantageously, particularly reliable and / or efficient suction can be achieved. Advantageously, a cleaning device that can be used particularly flexibly can be provided. The material removal unit is, for example, configured as a vacuum cleaner, in particular a portable suction box, etc. The attachment and / or fixed interface is particularly configured to connect the suction channel to the material removal unit with fluid technology. Alternatively, it is conceivable that the cleaning device is constructed without an attachment and / or fixed interface, in particular when the cleaning device is configured with a suction unit. It is conceivable that the attachment and / or fixed interface has a closing element for preferably selectively closing the attachment and / or fixed interface with fluid technology. The attachment and / or fixed interface is, for example, configured to be threaded, latched, clamped, bayonet-connected, etc. with the material removal unit.

[0017] In addition, it is proposed that the cleaning device has at least one other handheld machine tool interface for connecting to a handheld machine tool, in particular a suction area on the tool side of the handheld machine tool, in particular the suction area, in particular with fluid technology. Advantageously, multiple, in particular at least two handheld machine tools can be sucked at the same time. Advantageously, a cleaning device that can be used particularly flexibly can be provided. It is conceivable that the other handheld machine tool interface is constructed identically or differently from the handheld machine tool interface. It is conceivable that the identification unit is constructed to identify the connection of the other handheld machine tool interface to the handheld machine tool.

[0018] In addition, it is proposed that the cleaning device has a control unit, in particular the above-mentioned control unit, for opening and / or closing the handheld machine tool interface, in particular the opening area and / or another handheld machine tool interface with fluid technology. Advantageously, particularly efficient suction can be achieved via the handheld machine tool interface and the other handheld machine tool interface. Pollution of the surrounding environment due to the unintentional discharge of suction materials from the cleaning device can be prevented. The control unit is particularly configured to open and / or close the handheld machine tool interface and / or another handheld machine tool interface with fluid technology according to the connection with the handheld tool, preferably identified by means of the identification unit. The control unit is preferably configured to open the handheld machine tool interface and / or another handheld machine tool interface with fluid technology when connected to the handheld machine tool accordingly. The control unit is preferably configured to close the handheld machine tool interface and / or another handheld machine tool interface with fluid technology when the handheld machine tool interface and / or another handheld machine tool interface are not connected to the handheld machine tool. For example, the control device is configured to fluidically close the handheld power tool interface when it is not connected to the handheld power tool and to fluidically open another handheld power tool interface when it is connected to the handheld power tool.

[0019] In addition, it is proposed that the cleaning device has a holding unit for at least safely positioning and / or holding on the material removal unit, in particular the above-mentioned material removal unit. Advantageously, the normal operation of the cleaning device can be assisted. The particularly safe operation of the cleaning device can be achieved. Damage to the cleaning device can be prevented. The holding unit can be configured, for example, to form a latch connection, a clamping connection, a Velcro connection, a bayonet connection, etc., in particular with the material removal unit. Alternatively or additionally, it can be considered that the holding unit is configured to be preferably positioned and / or held on a bottom surface, in particular the ground and / or a wall, differently from the material removal unit. The holding unit preferably has at least one holding element. The holding element can be configured, for example, as a latching groove, a latching protrusion, a clamping claw, a suction cup, a magnet, an additional counterweight, etc. It can be considered that the material removal unit has a fastening element corresponding to the holding unit, in particular at least one holding element. Alternatively, it can be considered that the material removal unit is constructed without a fastening element specially configured to cooperate with the holding unit. It can also be considered that the attachment and / or fixing interface is integrated into the holding unit.

[0020] In addition, it is proposed that the cleaning device has a suction auxiliary unit for generating impact and / or vibration. Advantageously, particularly efficient and / or thorough suction of the hand-held tool and / or dust collection container can be achieved. For example, the suction auxiliary unit has an impact element. The impact element can be configured as a ball or similar element, as a hammer-shaped element or the like, for example. It is conceivable that the impact element is arranged in the suction channel. Alternatively, it is conceivable that the impact element is at least partially arranged, preferably supported on the outside of the cleaning device. The suction auxiliary unit can preferably be driven by the air flow for suction. Alternatively or additionally, it is conceivable that the cleaning device has a drive device for the suction auxiliary unit. Alternatively or additionally, it is conceivable that the suction auxiliary unit has a suction channel closure element for selectively closing and opening the suction channel. The suction channel closure element can also be composed of at least one closure element, for example. Alternatively, it is conceivable that the suction channel closure element is configured differently from at least one closure element and is preferably arranged in the suction channel spaced apart from the hand-held machine tool interface. The suction channel closing element is particularly designed to selectively close and / or open the suction channel, particularly during the suction removal of material from the handheld power tool and / or the dust collection container, preferably in order to generate a gas pressure surge by subsequently opening the suction channel. The suction auxiliary unit is particularly designed to remove dust or the like that has adhered, particularly in the suction channel, the dust collection container and / or the handheld power tool.

[0021] In addition, a system is proposed, which has a handheld machine tool, in particular the above-mentioned handheld machine tool and / or a material removal unit, in particular the above-mentioned material removal unit, and a cleaning device. A system to be cleaned in a particularly comfortable manner can be provided. Advantageously, a system that can be cleaned in a particularly polluting manner with respect to the working environment can be provided. Advantageously, a particularly user-friendly cleaning of the handheld machine tool can be achieved. Advantageously, a system with particularly high user comfort can be provided. It is conceivable that the cleaning device can be detachably fixed to the material removal unit. In this context, "detachable" should be understood in particular as "capable of being separated without damage". Alternatively, it is conceivable that the cleaning device is integrated into the material removal unit, in particular, it is constructed at least partially as one piece with the material removal unit. "At least one unit, in particular the cleaning device and at least one other unit, in particular the material removal unit are constructed at least partially as one piece with each other" should be understood in particular as at least one element of the unit being constructed as one piece with at least one other element of another unit. "Integrally" can be understood as being connected at least in a materially locked manner, for example by means of a welding process, a soldering process, an adhesive bonding process, an injection molding process and / or other processes that appear to make sense to a person skilled in the art, and / or advantageously formed in one piece, for example by manufacturing from a casting and / or by manufacturing using a single-component or multi-component injection molding method and advantageously from a single blank.

[0022] It is further proposed that the handheld machine tool has a suction fan, in particular the suction fan described above, wherein the handheld machine tool and / or the dust collection container arranged on the handheld machine tool can be sucked by the air flow guided by the suction fan through the cleaning device. Advantageously, the suction fan can be cleaned. The design structure of the handheld machine tool can particularly simply realize the suction of the handheld machine tool and / or the dust collection container arranged on the handheld machine tool. The suction fan of the handheld machine tool is particularly configured to suck away removed material when machining a workpiece with the handheld machine tool. It is conceivable that the suction fan of the handheld machine tool can be operated reversibly in order to clean the handheld machine tool and / or the dust collection container, in particular by sucking away removed material via the cleaning device.

[0023] In addition, the present invention is also based on a method for sucking out removed material from a handheld power tool and / or a dust container arranged on the handheld power tool by means of a cleaning device. It is proposed that the handheld power tool is connected to the cleaning device on the tool side and is sucked via a suction area on the tool side of the handheld power tool, in particular the suction area on the tool side. By means of the method according to the present invention, removed material can be removed from the handheld power tool and / or the dust container without having to remove the dust container from the handheld power tool. Therefore, contamination by the removed material due to the removal of the dust container from the handheld power tool can be avoided. Advantageously, a particularly high user comfort can be achieved. It is possible to suck out the removed material from the handheld power tool and / or the dust container with particularly little contamination. It is possible to achieve particularly health-protecting cleaning and / or suction of the handheld power tool and / or the dust container.

[0024] The cleaning device according to the invention, the system according to the invention and / or the method according to the invention are not limited to the applications and embodiments described above. The cleaning device according to the invention and / or the system according to the invention and / or the method according to the invention can have numbers that deviate from the numbers of individual elements, components and units and method steps described here, in particular to meet the working method described here. In addition, in the value ranges given in the present disclosure, the values ​​that lie within the stated extreme values ​​should also be regarded as disclosed and can be used arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Further advantages are derived from the following description of the drawings. Embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain features in multiple combinations. A person skilled in the art can also consider the features individually and combine them into other meaningful combinations. The drawings show:

[0026] Figure 1 : A perspective view of a part of a system according to the invention having a cleaning device according to the invention and a material removal unit,

[0027] Figure 2 : A side view of a handheld power tool of the system, wherein the handheld power tool is arranged on a cleaning device,

[0028] Figure 3 : Figure 1 and Figure 2 A three-dimensional view of a cleaning device,

[0029] Figure 4 According to the present invention, Figures 1 to 3 A schematic flow chart of a method for removing material by suction from a hand-held power tool and / or a dust collection container arranged on the hand-held power tool using a cleaning device of

[0030] Figure 5: A perspective view of a first alternative embodiment of the system according to the invention, comprising a cleaning device according to the invention and a material removal unit,

[0031] Figure 6 : A perspective view of a second alternative configuration of the system according to the invention, which system has a cleaning device according to the invention and a material removal unit, and

[0032] Figure 7 : A three-dimensional view of a third alternative configuration of the cleaning device according to the present invention. DETAILED DESCRIPTION

[0033] Figure 1 4 shows a part of a system 46a, which has a material removal unit 36a and a cleaning device 10a. The system 46a has a handheld power tool 12a (see Figure 2 ). The handheld power tool 12a is configured as a grinder, in particular an oscillating grinding device, by way of example. Alternatively, it is also conceivable that the handheld power tool 12a is configured as a rotary grinding device, a triangular grinding device, a belt grinding device or an eccentric grinding device, or as a milling machine, in particular a slot milling machine or the like, or as a saw, in particular a circular saw, a jigsaw, a crescent saw, or as other handheld power tools that appear meaningful to a person skilled in the art, in particular for producing material removal.

[0034] The material removal unit 36a is designed here as a vacuum cleaner by way of example. Alternatively, it is also conceivable that the material removal unit 36a is designed as a vacuum box or the like.

[0035] The handheld power tool 12a is configured to vacuum removed material when machining a workpiece with the handheld power tool 12a. The dust collection container 14a is fastened, in particular detachably fastened, to the handheld power tool 12a. It is also conceivable that the dust collection container 14a is fixedly connected to the handheld power tool 12a. It is conceivable that the dust collection container 14a is part of the system 46a, in particular part of the handheld power tool 12a. The dust collection container 14a is configured to receive removed material.

[0036] The handheld power tool 12a has a suction fan 48a, which is used in particular to remove material by suction during machining of a workpiece. The suction fan 48a is used to generate an air flow for removing material by suction.

[0037] The removed material can be sucked off via the tool-side suction area 20a of the handheld power tool 12a. During machining of a workpiece by means of the handheld power tool 12a, the removed material can be sucked off via the tool-side suction area 20a by means of the air flow generated by the suction fan 48a and blown into the dust collection container 14a.

[0038] The cleaning device 10a has at least one suction channel 16a. The cleaning device 10a has at least one handheld power tool interface 18a for connecting the suction channel 16a to a tool-side suction region 20a of the handheld power tool 12a.

[0039] The cleaning device 10a is provided for sucking away material from a handheld power tool 12a and / or a dust collection container 14a arranged on the handheld power tool 12a, in particular for cleaning the handheld power tool 12a and / or the dust collection container 14a. The handheld power tool 12a and / or the dust collection container 14a arranged on the handheld power tool 12a can be sucked through the cleaning device 10a by an air flow guided by a suction fan 48a.

[0040] With the aid of the cleaning device 10a, the removed material can be sucked out of the handheld machine tool 12a and / or the dust collection container 14a through the suction area 20a on the tool side of the handheld machine tool 12a. The removed material from the handheld machine tool 12a and / or the dust collection container 14a can be sucked out through the handheld machine tool interface 18a and the suction channel 16a.

[0041] The handheld power tool 12a has a tool receiving portion 24a for receiving a tool 54a. The tool receiving portion 24a is configured as a grinding pad. The tool 54a is configured as grinding paper here by way of example. Alternatively, it is conceivable that the tool 54a can be configured as a grinding grid, a saw blade, etc., especially in relation to the configuration of the handheld power tool 12a.

[0042] The tool-side suction area 20a is arranged on the tool receiving part 24a and / or the tool 54a. The suction area 20a is defined by at least one suction opening (not shown here). The tool receiving part 24a has at least one suction opening. The tool 54a here has, by way of example, another suction opening (not shown here) of the suction area 20a.

[0043] The handheld machine tool interface 18a is provided for connection with the handheld machine tool 12a, preferably mechanically and / or fluidically. The handheld machine tool interface 18a is provided for fluidically connecting the suction channel 16a to a suction region 20a on the tool side of the handheld machine tool 12a. The handheld machine tool interface 18a is provided for connection with a tool receiving portion 24a of the handheld machine tool 12a.

[0044] The handheld power tool interface 18a has a receiving portion 22a for a tool receiving portion 24a of the handheld power tool 12a. For example, the handheld power tool 12a can be placed on the cleaning device 10a via the tool receiving portion 24a and the receiving portion 22a of the cleaning device 10a. The handheld power tool 12a, preferably the tool receiving portion 24a, can be fixed and / or fastened on the receiving portion 22a.

[0045] The hand-held power tool interface 18a has a sealing unit 26a for sealingly connecting to the suction region 20a of the hand-held power tool 12a (see Figure 3 ). Alternatively or additionally, it is conceivable that the handheld power tool interface 18a has an adapter interface which is connected to a sealing unit for sealingly connecting to the suction region 20a of the handheld power tool 12a.

[0046] The sealing unit 26a comprises at least one sealing element 56a. The shape of the sealing unit 26a, in particular the sealing element 56a, is configured to correspond to the tool receiving portion 24a. The sealing element 56a is configured in an annular shape, in particular in an annular segment shape, as an example. Alternatively, it is conceivable that the shape of the sealing unit 26a, in particular the sealing element 56a, can be adjusted, in particular for adapting to different tool receiving portions of different hand-held power tools.

[0047] The contact surface 64a of the handheld power tool interface 18a and the tool receptacle 24a, in particular the grinding pad and / or the tool 54a, such as grinding paper, is part of the sealing unit 26a. The contact surface 64a is, for example, made of an elastic material, in particular a rubber-elastic material, preferably an elastomer, such as sponge rubber, silicone or the like.

[0048] It is conceivable that the contact surface 64a is movable in a direction perpendicular to the main extension plane of the contact surface 64a, in particular relative to the base body 66a of the cleaning device 10a. The contact surface 64a is movable relative to the base body 66a, in particular in a vertical direction, in particular for adapting to different tool receptacles 24a and / or for connecting the handheld power tool interface 18a to the handheld power tool 12a.

[0049] The cleaning device 10a has an identification unit 32a for identifying the connection between the handheld power tool interface 18a and the handheld power tool 12a. The identification unit 32a can be configured optically, electrically, wirelessly and / or mechanically, for example. It is conceivable that the identification unit 32a includes an operating element (not shown here). The operating element of the identification unit 32a can be operated by connecting the handheld power tool 12a to the handheld power tool interface 18a. The operating element can be configured as a button, a lever or the like, for example.

[0050] Alternatively or additionally, it is conceivable for the detection unit 32a to have an electrical and / or optical sensor for detecting a connection between the handheld power tool interface 18a and the handheld power tool 12a.

[0051] The cleaning device 10a is designed without a suction unit. Alternatively, it is conceivable that the cleaning device 10a has a suction unit for generating an air flow, in particular for sucking out the handheld power tool 12a and / or the dust container 14a.

[0052] It is conceivable that the identification unit 32a is connected at least in terms of control technology to a material removal unit 36a, preferably a suction unit (not shown here) of the material removal unit 36a. The suction unit of the material removal unit 36a has, for example, at least one fan or the like. The suction unit of the material removal unit 36a is provided to generate an air flow for suctioning the hand-held power tool 12a and / or the dust collection container 14a by means of the cleaning device 10a via the tool-side suction area 20a of the hand-held power tool 12a.

[0053] For example, the recognition unit 32a is configured to send a signal to the suction unit of the material removal unit 36a when a connection between the handheld power tool 12a and the handheld power tool interface 18a is recognized, in order to trigger suction of the handheld power tool 12a and / or the dust container 14a, for example by means of Bluetooth, WLAN, mobile radio, etc. Alternatively or additionally, it is conceivable that the suction can be triggered manually by a user.

[0054] The cleaning device 10a has an attachment and / or fixing interface 34a for connecting the suction channel 16a to a material removal unit 36a, in particular a hose connection 38a of the material removal unit 36a, in particular without tools. The attachment and / or fixing interface 34a is provided for connecting the suction channel 16a to the material removal unit 36a in a fluidic manner. The attachment and / or fixing interface 34a is provided here as an example for a latching connection with the material removal unit 36a.

[0055] The cleaning device 10a has a holding unit 68a for securely positioning and / or at least holding on the material removal unit 36a. The holding unit 68a is, for example, configured to form a latching connection, a clamping connection, a Velcro connection, a bayonet connection or the like, in particular with the material removal unit 36a. Alternatively or additionally, it is conceivable that the holding unit 68a is configured to be positioned and / or held on a bottom surface, in particular the floor and / or a wall, preferably differently from the material removal unit 36a.

[0056] The holding unit 68a has at least one holding element (not shown here). The holding element can be designed, for example, as a latching groove, a latching projection, a clamping claw, a suction cup, etc. It is conceivable that the material removal unit 36a has a fastening element corresponding to the holding unit 68a, in particular the at least one holding element. Alternatively, it is conceivable that the material removal unit 36a is designed without a fastening element that is specially designed for cooperating with the holding unit 68a.

[0057] The cleaning device 10a has a suction auxiliary unit 44a for generating impact and / or vibration. The suction auxiliary unit 44a has, for example, an impact element (not shown here). The impact element can be configured, for example, as a ball or similar element, as a hammer-shaped element or the like. It is conceivable that the impact element is arranged in the suction channel 16a. Alternatively, it is also conceivable that the impact element is at least partially arranged, preferably supported on the outer side 58a of the cleaning device 10a.

[0058] The suction auxiliary unit 44a can be driven by an air flow for suction. Alternatively or additionally, it is conceivable that the cleaning device 10a has a drive for the suction auxiliary unit 44a. It is also conceivable that the suction auxiliary unit 44a has a suction channel closing element. The suction channel closing element is arranged to close and / or open the suction channel 16a, in particular during suction, preferably in order to generate a pressure shock by subsequently opening the suction channel 16a. The suction auxiliary unit 44a is arranged to remove adhering dust, in particular dust adhering in the suction channel 16a, the dust collection container 14a and / or the handheld power tool 12a.

[0059] Figure 4 The schematic sequence of a method for vacuuming removed material from a handheld power tool 12a and / or a dust container 14a arranged on the handheld power tool 12a is shown by means of a cleaning device 10a.

[0060] In a method step, in particular in a connecting step 50a , the handheld power tool 12a , in particular the tool-side suction region 20a , is connected on the tool side to the cleaning device 10a , in particular the handheld power tool interface 18a .

[0061] In a further method step, in particular in a suction step 52a , the handheld power tool 12a and / or a dust collection container 14a arranged on the handheld power tool 12a is suctioned via the tool-side suction area 20a .

[0062] exist Figures 5 to 7 The following description and drawings are essentially limited to the differences between the embodiments, wherein for components with the same reference numerals, in particular for components with the same reference numerals, reference can in principle also be made to the drawings and / or the description of other embodiments, in particular Figures 1 to 4 In order to distinguish the embodiments, the letter a is placed after Figures 1 to 4 In the embodiment of the figure mark. Figures 5 to 7 In the embodiment of the invention, the letter a is replaced by the letters b to d.

[0063] Figure 5A system 46b is shown having a material removal unit 36b and a cleaning device 10b. The cleaning device 10b has at least one suction channel (not shown here). The cleaning device 10b has at least one handheld machine tool interface 18b for connecting the suction channel to a tool-side suction region 20b of the handheld machine tool 12b.

[0064] The cleaning device 10b is integrated into the material removing unit 36b, in particular is at least partially designed as a single piece with the material removing unit 36b.

[0065] The handheld power tool interface 18b has a sealing unit 26b for connecting to a Figure 2 When connected to the handheld power tool 12a, the sealing unit 26b closes at least one opening 28a, in particular a bypass opening, of the handheld power tool 12a that is connected to the suction area 20a of the handheld power tool 12a (see Figure 2 ), preferably all openings 28a (in Figure 2 In the state connected to the handheld power tool 12a, the sealing unit 26b at least substantially completely covers at least one opening 28a, preferably all openings 28a.

[0066] Figure 6 A system 46c is shown having a material removal unit 36c and a cleaning device 10c. The material removal unit 36c is designed as a vacuum cleaner. The cleaning device 10c is integrated into the material removal unit 36c. The cleaning device 10c has at least one suction channel (not shown here). The cleaning device 10c has at least one hand-held machine tool interface 18c for connecting the suction channel to a suction area on the tool side of the hand-held machine tool.

[0067] The cleaning device 10c has at least one further hand-held power tool interface 40c for connection, in particular fluidically, to a suction region, in particular on the tool side, of a hand-held power tool or another hand-held power tool.

[0068] In this case, the further handheld power tool interface 40c is designed, by way of example, identically to the handheld power tool interface 18c. Alternatively, it is also conceivable that the handheld power tool interface 18c is designed differently from the further handheld power tool interface 40c.

[0069] It is conceivable that the cleaning device 10c has a recognition unit for recognizing a connection of the handheld power tool interface 18c and / or the further handheld power tool interface 40c to the handheld power tool.

[0070] The cleaning device 10c has a control unit 42c for opening and / or closing the hand-held power tool interface 18c and / or the further hand-held power tool interface 40c using fluid technology.

[0071] The handheld machine tool interface 18c and the further handheld machine tool interface 40c each have an opening area for the corresponding suction channel. These opening areas are defined by at least one air inlet of the handheld machine tool interface 18c or the further handheld machine tool interface 40c. The handheld machine tool interface 18c and the further handheld machine tool interface 40c each have at least one closing element for selectively closing the corresponding opening area, in particular the corresponding at least one air inlet.

[0072] The closing element is part of the control unit 42c. The control unit 42c can be designed, for example, purely mechanically or at least partially electrically and / or electronically. The control unit 42c is connected to the identification unit at least in terms of control technology. The control unit 42c is provided for opening and / or closing the hand-held machine tool interface 18c and / or another hand-held machine tool interface 40c, in particular in terms of fluid technology, in relation to a corresponding connection of the hand-held machine tool.

[0073] The control unit 42c is configured to open the hand-held machine tool interface 18c and / or the other hand-held machine tool interface 40c by fluid technology when the hand-held machine tool interface 18c and / or the other hand-held machine tool interface 40c are respectively not connected to the hand-held machine tool, and / or the control unit 42c is configured to close the hand-held machine tool interface 18c and / or the other hand-held machine tool interface 40c by fluid technology. For example, the control unit 42c is configured to close the hand-held machine tool interface 18c by fluid technology when the hand-held machine tool interface 18c is not connected to the hand-held machine tool, and to open the other hand-held machine tool interface 40c by fluid technology when the other hand-held machine tool interface 40c is connected to the hand-held machine tool.

[0074] Figure 7 The cleaning device 10d is shown. The cleaning device 10b has at least one suction channel (not shown here). The cleaning device 10d has at least one hand-held power tool interface 18d for connecting the suction channel to a suction area on the tool side of the hand-held power tool.

[0075] The handheld machine tool interface 18d has an adaptable opening area 30d for the suction channel of the cleaning device 10d. In a state connected to the handheld machine tool, the opening area 30d is located on the suction area on the tool side of the handheld machine tool. The opening area 30d is provided for adapting tool receiving parts and / or tools of different sizes, preferably for adapting different grinding pad sizes. The opening area 30d is provided for adapting the suction area on different tool sides of different handheld machine tools. The opening area 30d has an adaptable opening cross section. The opening area 30d can be adapted so that the opening cross section of the opening area 30d corresponds to the suction area on the tool side of the handheld machine tool.

[0076] It is conceivable that the opening area 30d can be adapted automatically and / or manually. For example, the automatic adaptation of the opening area 30d can be triggered by the connection of the handheld power tool interface 18d to the handheld power tool. Alternatively or additionally, it is conceivable that the opening area 30d can be adapted by an operating element of the cleaning device 10d, which can preferably be operated by a user. The operating element can be designed, for example, as a rotary wheel, a button, a keypad or a lever, etc.

[0077] The handheld power tool interface 18d has a plurality of air inlets 60d (in Figure 7 Only one air inlet 60d is provided with a reference numeral. Alternatively, it is also conceivable that the hand-held power tool interface 18d has only one air inlet 60d. The air inlet 60d defines the opening region 30d of the hand-held power tool interface 18d.

[0078] The handheld power tool interface 18d has a plurality of closure elements 62d for preferably selectively closing the air inlet 60d (at Figure 7 Only one closure element 62d is provided with a reference numeral). However, alternatively, it is also conceivable that the handheld machine tool interface 18d has only one closure element 62d. The number of air inlets 60d corresponds to the number of closure elements 62d. Alternatively, it is also conceivable that the number of closure elements 62d is greater or less than the number of air inlets 60d. For example, alternatively, it is conceivable that the closure element 62d of the handheld machine tool interface 18d can close multiple, especially at least two, air inlets 60d. The air inlet 60d can be selectively closed and opened by the closure element 62d to adapt the opening area 30d.

Claims

1. A cleaning device (10a; 10b; 10c; 10d) for removing material by suction from a handheld power tool (12a) and / or a dust collection container (14a) arranged on the handheld power tool (12a), the cleaning device having at least one suction channel (16a) and a handheld power tool interface (18a; 18b; 18c; 18d), the handheld power tool interface being used to connect the suction channel (16a) to a suction area (20a) on the tool side of the handheld power tool (12a).

2. The cleaning device (10a; 10b; 10c; 10d) according to claim 1, characterized in that The handheld power tool interface (18a; 18b; 18c; 18d) has a receptacle (22a; 22b; 22c; 22d) for a tool receptacle (24a) of the handheld power tool (12a).

3. The cleaning device (10a; 10b; 10c; 10d) according to claim 1 or 2, characterized in that: The handheld power tool interface (18a; 18b; 18c; 18d) has a sealing unit (26a; 26b; 26d) for sealingly connecting to a suction region (20a) of the handheld power tool (12a), or The hand-held power tool interface has an adapter interface which is connected to a sealing unit for sealingly connecting to a suction region (20a) of the hand-held power tool (12a).

4. The cleaning device (10b; 10c; 10d) according to claim 3, characterized in that The sealing unit (26b) closes at least one opening (28a), in particular a bypass opening, of a suction channel of the handheld power tool (12a), which is connected to a suction region (20a) of the handheld power tool (12a), when connected to the handheld power tool (12a).

5. The cleaning device (10d) according to any one of the preceding claims, characterized in that The handheld power tool interface (18d) has an adaptable opening region (30d) for the suction channel (16a).

6. The cleaning device (10a; 10b; 10c; 10d) according to any one of the preceding claims, characterized in that An identification unit (32a) is provided for identifying a connection of the handheld power tool interface (18a; 18b) to the handheld power tool (12a).

7. The cleaning device (10a) according to any one of the preceding claims, characterized in that A connection and / or fastening interface (34a) is provided for connecting the suction channel (16a) to a material removal unit (36a; 36b), for example a vacuum cleaner, in particular a hose connection (38a), in particular a tool-free connection.

8. The cleaning device (10c) according to any one of the preceding claims, characterized in that At least one further hand-held power tool interface (40c) is provided for connection, in particular fluidic connection, to a suction region (20a), in particular on the tool side, of the hand-held power tool (12a).

9. The cleaning device (10a; 10c) according to any one of the preceding claims, characterized in that A control unit (42a; 42c) is provided for opening and / or closing the hand-held power tool interface (18a; 18c) and / or a further hand-held power tool interface (40c) according to claim 8 by means of fluid technology.

10. The cleaning device (10a) according to any one of the preceding claims, characterized in that A holding unit (68a) is provided for securely positioning and / or holding at least on the material removing unit (36a).

11. The cleaning device (10a; 10b; 10c; 10d) according to any one of the preceding claims, characterized in that A suction assist unit (44a) is provided for generating shocks and / or vibrations.

12. A system (46a; 46b; 46c) comprising a handheld power tool (12a) and / or a material removal unit (36a; 36b; 36c) and a cleaning device (10a; 10b; 10c; 10d) according to any of the preceding claims.

13. The system (46a; 46b; 46c) according to claim 12, characterized in that The handheld power tool (12a) has a suction fan (48a), wherein the handheld power tool (12a) and / or a dust container (14a) arranged on the handheld power tool (12a) can be sucked through the cleaning device (10a; 10b; 10c; 10d) by an air flow guided via the suction fan (48a).

14. A method for vacuuming and removing material from a handheld power tool (12a) and / or a dust collection container (14a) arranged on the handheld power tool (12a) by means of a cleaning device (10a; 10b; 10c; 10d), in particular a cleaning device according to any one of claims 1 to 11, characterized in that The handheld power tool (12a) is connected to the cleaning device (10a; 10b; 10c; 10d) and is suctioned via a tool-side suction area (20a) of the handheld power tool (12a).

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