EP4167819A1 - Dispositif de dépoussiérage pour machine-outil - Google Patents

Dispositif de dépoussiérage pour machine-outil

Info

Publication number
EP4167819A1
EP4167819A1 EP21731150.5A EP21731150A EP4167819A1 EP 4167819 A1 EP4167819 A1 EP 4167819A1 EP 21731150 A EP21731150 A EP 21731150A EP 4167819 A1 EP4167819 A1 EP 4167819A1
Authority
EP
European Patent Office
Prior art keywords
filter
dust
shaft
lamellae
collecting device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21731150.5A
Other languages
German (de)
English (en)
Inventor
Uto Plank
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP4167819A1 publication Critical patent/EP4167819A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0095—Suction cleaners or attachments adapted to collect dust or waste from power tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/122—Dry filters flat
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1409—Rigid filtering receptacles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/20—Means for cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
    • B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/55—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for cleaning appliances, e.g. suction cleaners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/20—Devices for cleaning or cooling tool or work

Definitions

  • Dust collecting device for a machine tool
  • the present invention relates to a dust collecting device for a machine tool, the dust collecting device having a lamellar filter and a rotatable shaft.
  • the lamellae of the filter can be set into an axial movement by a rotary movement of the shaft, which is then interrupted when the filter lamellae come into the area of the release means of the shaft.
  • the release means allow the lamellae to return to their original position, the return of the lamellae to this original position causing the lamellae to vibrate, which leads to the filter being cleaned.
  • the invention relates to a machine tool which has a proposed dust collecting device, as well as a method for operating a machine tool and for cleaning a filter.
  • Machine tools are known in the prior art in which dust that arises when working with the machine tool can be extracted by an internal dust extraction system.
  • the collected dust can for example be caught in a dust collecting device inside the machine tool or collected until the device is emptied.
  • the machine tool with dust extraction can have filters, in particular miniature filters, in order to separate rock and / or dust particles from the air flow.
  • These filters are often filters that have lamellas. In the context of the invention, these are preferably referred to as “lamella filters”.
  • these filters can easily become clogged with dust or coarse dirt, which can disadvantageously lead to the dust extraction losing performance or clogging the extraction channels.
  • the undesired clogging of the filter can mean that a filling capacity of the dust collecting device cannot be used optimally.
  • knocking off of the entire dust box often leads to mechanical impairment of the dust collecting device or its components.
  • knocking off the dust collecting device mainly acts on the housing of the collecting container and often does not lead to sufficient cleaning of the filter.
  • Another cleaning option which is known from the state of the art, is to "blow off" the filter using a reverse air flow.
  • the direction of flow of the suction air flow is reversed by switching off or reducing the negative pressure, so that an air flow flows through the filter for a brief moment, the direction of which is opposite to the usual flow direction in the case of suction.
  • the filter cleaning by a reverse air flow does not help and leads to the desired effect in particular when larger lumps of dust or rocks are jammed in the flow channel. Because the reverse air flow is usually not strong enough to loosen or free jammed lumps of dust or rocks from the flow channel.
  • Another disadvantage of cleaning by means of a reverse air flow is that the dust extraction must also be interrupted at the moment when the vacuum is interrupted. During this cleaning period, the user of the machine tool is exposed to the full amount of dust that occurs when working with the machine tool.
  • the invention is intended to give a machine tool with a dust collecting device to be provided, as well as a method for operating a machine tool or a method for cleaning a filter in a dust collecting device in a machine tool.
  • the disadvantages and shortcomings of the prior art described above are to be overcome and, in particular, efficient and effective cleaning of the filter in a dust collecting device of a machine tool is made possible.
  • the cleaning should be strong enough, for example, to free dust or rocks that are in have jammed a flow channel of the machine tool.
  • the object is achieved by a dust collecting device for a machine tool, the dust collecting device having a collecting container for receiving the dust.
  • the dust collecting device is characterized in that a filter with lamellae and a rotatable shaft are arranged in the collecting container, the lamellae of the filter being displaceable from an original position by a rotary movement of the shaft, the shaft having release means which have a Allow the lamellas to return to their original position, with the filter being cleaned when the lamellas return to their original position.
  • the return of the lamellae to their original position causes the lamellae to vibrate, which leads to the filter being cleaned.
  • the invention presents a cleaning option for a lamellar filter, with the lamellar filter being able to filter a dust-laden air stream in a machine tool. Due to the compact, mechanical and easy-to-use construction, the invention advantageously provides a particularly robust and low-maintenance dust box for a machine tool. Tests have shown that the invention represents a cost-effective technical solution for filter cleaning, which in particular manages without a special sweeping device, knocking off the entire dust box or a reverse blast of air. Thus, the proposed dust-collecting device turns away from such solutions, which are known from the prior art, and breaks new ground in the field of cleaning a filter in a dust-collecting device in a machine tool.
  • the shaft and the filter or its lamellae are in positive engagement with one another.
  • the rotary movement of the shaft can be converted into an axial movement of the filter or the filter lamellae.
  • the axial movement preferably takes place essentially parallel to a central axis of the shaft.
  • the term “essentially parallel” is not an unclear term for the person skilled in the art, because the person skilled in the art knows that the formulation means a movement of the filter lamellas essentially parallel to an axial direction of the shaft, with minor deviations from the exact mathematical parallelism tolerate.
  • the shaft has a preferably helically profiled screw surface or a thread, wherein the screw surface can come into engagement with the lamellae of the filter.
  • the presence of the helically designed screw surface or the thread on the shaft can be described with the formulation that the shaft has turns.
  • the contact of the screw surface of the shaft with the lamellae of the filter allows the lamellae to be moved in the axial direction of the shaft when the shaft rotates.
  • the shaft is preferably arranged essentially horizontally in the collecting container of the machine tool and can be set in rotation from the outside via a rotary handle.
  • This rotation represents that rotary movement of the shaft with which the lamellae of the filter can be set in an axial movement.
  • the individual lamellae of the filter can be carried along by the windings of the shaft, so that the rotational movement of the shaft is converted into an axial movement of the individual lamellae of the filter.
  • the rotary handle can for example be fastened to the shaft with a fastening means such as a screw.
  • the proposed dust collecting device can have a housing, wherein the rotary handle can be rotatably mounted, for example, in a recess in the housing.
  • the housing can consist of two halves which can be joined together to form the overall housing of the dust collecting device.
  • the housing or its two partial halves advantageously form or enclose a closed hollow or interior space in which the dust that arises when a machine tool is in operation can be collected.
  • the proposed dust collecting device can in particular be designed as a component of a machine tool.
  • the proposed dust collection device can preferably be referred to as a “dust box” or as a “dust removal module” within the meaning of the invention.
  • this dust can be extracted by means of a dust extraction system, which can also be part of the machine tool.
  • the dust extraction can generate a negative pressure with which an air flow can be generated with which the dust can be removed from a work area of the machine tool.
  • the dust-laden air flow is preferably guided in the direction of the dust collecting device.
  • the dust collection device preferably has an opening through which the air flow can enter the dust collection device. It is preferred in the context of the invention that the filter is present in this opening or entrance area of the dust collecting device. It can happen that the filter becomes clogged when the machine tool is in operation for a long time or when the air flow is very dusty.
  • a solid filter cake forms, which can lead to the suction system losing suction power and clogging the suction channels.
  • the capacity of the dust collecting device or its collecting container may not be used optimally.
  • the invention can advantageously provide a possibility for quick and effective cleaning of the filter. It is preferred in the context of the invention that the cleaning process is started by actuating a rotary handle of the dust collecting device.
  • the shaft is preferably set in rotation within the collecting container of the dust collecting device.
  • the shaft has helical surfaces which can come into engagement with the lamellae of the filter or with the free spaces between the filter lamellae. Due to the design of the shaft with helical surfaces, the shaft can preferably also be referred to as a conveyor or worm shaft in the context of the invention. In other words, it is preferred in the context of the invention that the shaft is designed as a worm shaft and has turns.
  • the rotary movement of the shaft can be converted into an axial movement of the lamellae of the filter.
  • the turns of the shaft can be in positive engagement with the lamellae of the filter or with the free spaces between the filter lamellae.
  • the turns can engage in spaces between the filter lamellas, so that the lamellae are carried along or carried along by the turns of the shaft when the shaft is rotated repeatedly.
  • This entrainment of the lamellae is referred to as “axial movement” in the context of the invention.
  • the axial movement is shown in Fig. 1 as a double arrow.
  • the lamellae Before the start of the rotary movement, the lamellae are in an original or starting position with respect to the shaft or its windings. As a result of the axial movement, the filter lamellae are moved out of their starting position, in particular along an axial direction of the shaft. For example, due to their axial movement in the lateral direction, the lamellae can move a length d to the right or left. The length d then preferably represents the distance between a lamella and its starting position. It is preferred in the context of the invention that each lamella has its own original position. For example, the shaft can have three to ten turns. It has been shown that waves have five turns are particularly well suited for the purposes of the invention.
  • the number of turns of the shaft is correlated with a number of the lamellae of the filter.
  • this correlation can mean that the number of turns of the shaft is the same as the number of lamellae of the filter.
  • the number of lamellae of the filter is 1 greater than the number of turns of the shaft.
  • the shaft has a number of n windings and the filter has a number of n + 1 lamellae.
  • a thread pitch of the shaft corresponds to a spacing between the lamellae.
  • the shaft comprises release means.
  • This Freiga means can be designed as wrench surfaces.
  • the shaft can have key surfaces as release means.
  • the key surfaces can be designed as flat or planar surface areas, with one key surface preferably being provided for each turn of the shaft.
  • a possible embodiment of the shaft with release means designed as wrench surfaces is shown in FIG. 3.
  • the wrench surfaces can close the turns in a partial area of the turn to the outside.
  • it is preferred that the lamellae of the filter return to their original position when the key surfaces of the shaft are located above the lamellae of the filter.
  • the entrainment of the lamella ends in the area of the key surfaces and the lamellae can spring back or snap back into their original starting situation, since they are no longer held by the key surfaces that are preferably flat.
  • the springing back or rapid backward movement preferably results in a vibration of the filter lamellae, as a result of which the dust or filter cake can be detached from the lamellae and / or shaken off.
  • the vibration enables effective and efficient cleaning of the filter lamellae or the filter.
  • the lamellae of the filter are released from the shaft or their windings when the lamellae come into the area of the key surfaces of the shaft.
  • the slats can spring back to their previous position or snap back. This mostly jerky movement then advantageously leads to a vibration of the lamellas, through which the dust or filter cake in the clogged or clogged filter can loosen.
  • a cleaning effect is brought about by the advantageous interaction of the rotatable shaft and the filter.
  • the collecting container has a rotary handle with which the shaft can be set in rotation.
  • the rotary handle is set up to set the shaft in rotation.
  • This rotary movement can in particular take place by a preferably manual actuation by the user of the machine tool.
  • the shaft is driven by drive means.
  • an electric motor can be provided which can be activated or deactivated with a switch.
  • this switch can be arranged in the area on the housing of the dust collecting device in which the rotary handle is provided in the “manual embodiment” of the invention. For ergonomic reasons, however, the switch can also be arranged at various other locations.
  • the invention is preferably located in the technical field of dust removal from a work area of a machine tool.
  • the work area of the machine tool preferably represents that area in which the work to be performed with the machine tool is performed. This is mostly done with the help of a tool.
  • the machine tool is, for example, a hammer drill
  • the work tool can be formed, for example, by a drilling or chiseling tool.
  • the area in which the drilling or chiseling tool, as a tool of the machine tool, comes into contact with a substrate to be processed is preferably referred to as the “work area of the machine tool” in the context of the invention.
  • the dust is generated in this work area, which is preferably to be collected with the aid of the present invention.
  • the machine tool can include a dust extraction system.
  • the dust extraction is a device that is set up to generate an air flow or a negative pressure and to suck off the dust that can arise in the working area of the machine tool during its operation with the air flow.
  • the invention in a second aspect, relates to a machine tool with a dust extraction system for removing particles from a work area of the machine tool.
  • the machine tool has a proposed dust collecting device.
  • the Dust collecting device is a filter with lamellae and a rotatable shaft arranged, wherein the lamellae of the filter can be set by a rotary movement of the shaft in a movement from an original position, the shaft having release means which are adapted to a return of the lamellae in their To enable the original position, the return of the slats to their original position causing the slats to vibrate. It is a significant advantage of the proposed dust collecting device that this vibration leads to a cleaning of the filter.
  • the machine tool comprises a dust extraction system, the dust extraction system being set up to generate an air flow with which dust is removed.
  • the dust extraction is used in particular so that the dust can be extracted from the work area of the machine tool.
  • the dust extraction of the machine tool is preferably set up to generate a negative pressure, which in turn generates an air flow. With this air flow, the dust can be removed from the work area of the machine tool and lead in the direction of the dust collecting device.
  • a flow channel for the air flow is preferably provided in the machine tool, through which channel the air flow is guided from the work area to the dust collecting device.
  • the dust that arises during operation of the machine tool can preferably be collected in a collecting container of the dust collecting device.
  • a filter can be provided in the entrance area of the dust collecting device or the collecting container of the dust collecting device.
  • the filter has lamellas, and one of the main merits of the lamellae is to increase the surface area of the filter and thus to increase the filter performance of the filter. This allows the air flow to be filtered particularly effectively and freed from coarse dust particles.
  • the filter is set up to filter out dust and / or dust particles from an air flow leading into the collecting container of the proposed dust collecting device.
  • the filter is present at the entrance area of the collecting container, the air flow in this entrance area preferably opening into the collecting container.
  • the entrance area of the collecting container represents that area of the collecting container in which the air flow enters the collecting container and is still fully loaded with dust, particles and / or pieces of rock.
  • the method is characterized by the following process steps: a) operation of the proposed machine tool, whereby dust that is generated during operation of the machine tool is removed by means of an air stream, b) filtering the dust from the air stream, c) initiating the cleaning of the filter by actuating a Rotary handle on the dust collecting device, whereby a shaft within the dust collecting device is set in rotation by actuating the rotary handle, d) transmission of the rotary movement of the shaft into an axial movement of lamellae of the filter, the lamellae of the filter having an origin position due to the axial movement leave on, e) return of the lamellae of the filter to their original position when the lamellae come into an area of release means of the shaft, f) cleaning of the filter by returning the lamellae to their original position.
  • the dust can be extracted from a work area of the machine tool by means of a dust extraction system on the machine tool.
  • a dust extraction system on the machine tool.
  • an air flow is generated by the dust extraction, with which the dust can be removed from the work area of the machine tool.
  • the dust is collected in the collecting container of the dust collecting device, the air flow passing through a filter as it enters the collecting container. It can happen that the filter becomes clogged when the machine tool is in operation for a long time or when the air flow is heavily laden with dust. For example, a so-called filter cake can form in the filter.
  • the invention advantageously makes it possible to initiate cleaning of the filter, the filter cleaning being started in particular by actuating a rotary handle on an outside of the dust collecting device.
  • the rotary handle can be rotatably mounted in a recess of the housing.
  • the shaft is set in rotation within the dust collecting device by actuating the rotary handle.
  • the shaft which is preferably designed as a worm shaft, can have turns, the turns being can preferably come into engagement with the lamellae of the filter.
  • the worm shaft can be in positive engagement with the filter lamellae, the positive engagement in particular between the turns of the shaft and the lamellae of the filter.
  • a rotary movement of the shaft is converted into an axial movement of the lamellae of the filter, the lamellae of the filter leaving their original position as a result of the axial movement.
  • the shaft has release means which enable the lamellae of the filter to return to their original position when the filter lamellae come into a region of the release means of the shaft. This is particularly the case when the release means or key surfaces of the shaft are located above the lamellae of the filter.
  • the filter can advantageously be cleaned by vibrating the lamellae of the filter, the vibration being caused by the return of the lamellae to their original position.
  • Fig. 1 view of a preferred embodiment of the proposed Staubsammelvor direction (exploded view)
  • Fig. 2 view of a preferred embodiment of the proposed Staubsammelvor direction in the closed state
  • FIG. 3 center view of a preferred embodiment of the shaft with turns and clearance
  • Fig. 1 shows the view of a preferred embodiment of the proposed Staubsam melvoroplasty (1).
  • Fig. 1 shows an exploded view of the Staubsammelvor device (1). From top left to bottom right, Fig. 1 shows a first half of the housing (9) of the dust collecting device (1) or the collecting container (2), the filter (3) and its lamellas (4), and the shaft (5) with the release means (7), a second half of the housing (9) of the dust collecting device (1) or the collecting container (2), and the rotary handle (8).
  • the two halves of the housing (9) enclose a volume of space, wherein dust can be captured and collected in this closed volume of space.
  • the two halves of the housing (9) preferably form the collecting container (2) of the dust collecting device (1).
  • the lower area of the Sam mel mattersers (2) can be formed by a bottom or a shell.
  • a front side of the Staubsammelvorrich device (1) can extend, in which a filter (3) can be arranged.
  • the front of the dust-collecting device (1) forms the entrance area (10) of the dust-collecting device (1) into which the dust-laden air flow opens.
  • the filter (3) can be arranged in a filter holder.
  • the filter (3) is preferably a lamellar filter, that is to say preferably a filter (3) which has lamellae (4).
  • the filter (3) has, for example, six lamellae (4), with five spaces between the lamellae (4). It is preferred in the context of the invention that the turns (11) of a shaft (5) can engage in the free spaces between the lamellae (4) of the filter (3).
  • the two halves of the housing (9) can have openings for receiving this shaft (5).
  • the shaft (5) can be rotatably mounted within the dust-collecting device (1), the shaft (5) being able to be set in rotation in particular by a rotary handle (8).
  • the rotary handle (8) can, for example, be accessible from the outside and manually operated by a user of the machine tool (not shown).
  • the nut zer can turn the twist grip (8) in particular.
  • the rotary handle (8) is preferably rotatably mounted within the housing (9) of the dust collecting device (1).
  • the housing (9) or one of its partial halves can have a recess for receiving the rotary handle (8).
  • the rotary handle (8) is easily accessible from outside the dust collecting device (1).
  • the shaft (5) By operating the rotary handle (8), the shaft (5) is set in a rotary motion.
  • the windings (11) of the shaft (5) engage positively with the lamellae (4) of the filter (3) or with the free spaces between the lamellae (4) of the filter (3), the lamellae (4) are carried along by the windings (11) of the shaft (5) when the shaft (5) rotates.
  • the filter slats (4) are preferably in an initial or original position. The entrainment of the filter lamellae (4) by the windings (11) generates an axial movement (6) of the lamellae (4) of the filter
  • the axial movement (6) of the filter lamellas (4) preferably takes place essentially parallel to a central axis, which imagined runs through the shaft (5).
  • the release means (7) can, for example, be flat surfaces at the highest point of a turn (11) of the shaft (5).
  • Each turn (11) of the shaft (5) preferably has such a flat surface, these flat surfaces preferably being referred to as key surfaces in the context of the invention.
  • the wrench flats (7) of the shaft (5) are above the fins (4) of the filter (3), the filter fins (4) are released.
  • this preferably means that the lamellae (4) of the filter (3) can spring back into their starting position. This return movement of the filter lamella (4) can take place, for example, in the direction of the second half of the housing (9) of the dust collecting device (1), with this snapback of the lamellae (4) of the filter (3) being able to cause the vibration that is advantageous for this causes dust and filter cake to loosen from the lamellas (4) and the filter (3) to be cleaned.
  • the filter lamellae (4) when the filter lamellae (4) spring back into their starting position, the filter lamellae (4) may in particular jolt, which loosens dust and filter cake from the filter (3).
  • the dissolved dust or filter cake can fall into the collecting container (2) of the dust collecting device (1) and be disposed of when the collecting container (2) is next emptied.
  • Fig. 2 shows the view of a preferred embodiment of the proposed dust collecting device (1) in a closed state.
  • the two halves of the housing (9) of the dust collecting device (1) are connected to one another, so that they form the closed collecting container (2) which is designed to receive dust and the like.
  • the rotary handle (8) can also be seen, which is in the second half of the housing (9) of the dust collecting device (1).
  • Fig. 3 shows a view of a preferred embodiment of the shaft (5) with turns (11) and release means (7).
  • FIG. 3 has in particular five turns (11) which come into engagement with the spaces between the filter lamellas (4) or can work together to convert a rotary movement of the shaft (5) into an axial movement ( 6) of the slats (4) to convert.
  • the release means (7) which in the exemplary embodiment of the invention shown in FIG. 3 are designed in particular as wrench surfaces.
  • the first, third and fifth turns (11) of the shaft (5) are provided with an arrow and a reference number 11 in FIG. 3. These turns (11) can preferably also be referred to as threads in the context of the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Portable Power Tools In General (AREA)

Abstract

L'invention concerne un dispositif de dépoussiérage pour une machine-outil, ledit dispositif de dépoussiérage comportant un filtre à lamelles et un arbre rotatif. Les lamelles du filtre peuvent être déplacées axialement dans le collecteur de poussière du dispositif de dépoussiérage par un mouvement de rotation de l'arbre, et le mouvement axial est ensuite interrompu lorsque les lamelles du filtre atteignent la région des moyens de libération de l'arbre. Les moyens de libération permettent de ramener les lamelles dans leur position initiale, les lamelles étant secouées à la suite de ce retour dans leur position initiale, ce qui entraîne un processus de nettoyage du filtre. D'autres aspects de l'invention concernent une machine-outil qui comporte un tel dispositif de dépoussiérage et un procédé de fonctionnement d'une machine-outil et de nettoyage d'un filtre.
EP21731150.5A 2020-06-18 2021-06-08 Dispositif de dépoussiérage pour machine-outil Withdrawn EP4167819A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20180782.3A EP3925501A1 (fr) 2020-06-18 2020-06-18 Dispositif de collecte de poussière pour une machine-outil
PCT/EP2021/065239 WO2021254818A1 (fr) 2020-06-18 2021-06-08 Dispositif de dépoussiérage pour machine-outil

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EP4167819A1 true EP4167819A1 (fr) 2023-04-26

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EP21731150.5A Withdrawn EP4167819A1 (fr) 2020-06-18 2021-06-08 Dispositif de dépoussiérage pour machine-outil

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US (1) US20230200609A1 (fr)
EP (2) EP3925501A1 (fr)
JP (1) JP2023526611A (fr)
CN (1) CN115666347A (fr)
WO (1) WO2021254818A1 (fr)

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Publication number Priority date Publication date Assignee Title
US11235433B2 (en) * 2017-12-22 2022-02-01 Milwaukee Electric Tool Corporation Dust collector with filter cleaning mechanism
US20240108185A1 (en) * 2022-10-04 2024-04-04 Makita Corporation Dust collector
EP4650030A1 (fr) * 2024-05-13 2025-11-19 Kemaro AG Dispositif et procédé de nettoyage d'un filtre

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Publication number Priority date Publication date Assignee Title
JPS544854Y2 (fr) * 1972-09-05 1979-03-01
JPS5138379U (fr) * 1974-09-17 1976-03-22
US20090165240A1 (en) * 2007-12-27 2009-07-02 Daewoo Electronics Corporation Vacuum cleaner
US9221110B2 (en) * 2009-10-02 2015-12-29 JPL Global, LLC Power saw apparatus with integrated dust collector
SG174635A1 (en) * 2010-03-08 2011-10-28 Aalborg Ind Water Treat Pte Ltd Self-cleaning filter module
JP5957699B2 (ja) * 2012-09-21 2016-07-27 パナソニックＩｐマネジメント株式会社 電気掃除機
WO2016206758A1 (fr) * 2015-06-26 2016-12-29 Aktiebolaget Electrolux Aspirateur doté d'un dispositif de nettoyage de filtre
GB2539924B (en) * 2015-07-01 2017-10-11 Dyson Technology Ltd A separating apparatus
CN107053098A (zh) * 2016-01-20 2017-08-18 株式会社牧田 电动工具用集尘装置以及电动工具、集尘系统
DE102017108731B4 (de) * 2017-04-24 2021-06-24 Reschwitzer Saugbagger Produktions Gmbh Saugbagger mit schwenkbarer Filtereinheit
JP6927808B2 (ja) * 2017-08-31 2021-09-01 株式会社マキタ 電動工具用集塵装置及び電動工具
JP7098318B2 (ja) * 2017-12-21 2022-07-11 株式会社マキタ 電動工具用集塵装置及び電動工具
EP3883727A4 (fr) * 2018-11-19 2023-03-15 Milwaukee Electric Tool Corporation Collecteur de poussière comprenant un mécanisme de nettoyage de filtre

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WO2021254818A1 (fr) 2021-12-23
CN115666347A (zh) 2023-01-31
JP2023526611A (ja) 2023-06-22
US20230200609A1 (en) 2023-06-29
EP3925501A1 (fr) 2021-12-22

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