EP3398478A1 - Porte-outil et outil de travail pour un dispositif de nettoyage de sol entraîné en rotation - Google Patents

Porte-outil et outil de travail pour un dispositif de nettoyage de sol entraîné en rotation Download PDF

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Publication number
EP3398478A1
EP3398478A1 EP18170428.9A EP18170428A EP3398478A1 EP 3398478 A1 EP3398478 A1 EP 3398478A1 EP 18170428 A EP18170428 A EP 18170428A EP 3398478 A1 EP3398478 A1 EP 3398478A1
Authority
EP
European Patent Office
Prior art keywords
clamping
clamping element
cleaning device
floor cleaning
receiving pocket
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.)
Granted
Application number
EP18170428.9A
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German (de)
English (en)
Other versions
EP3398478B1 (fr
Inventor
Dirk Tielbürger
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Individual
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Individual
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Publication date
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Publication of EP3398478A1 publication Critical patent/EP3398478A1/fr
Application granted granted Critical
Publication of EP3398478B1 publication Critical patent/EP3398478B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/08—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping
    • A46B3/10—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping into rings or the like
    • A46B3/14—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping into rings or the like specially adapted for street-cleaning or rail-cleaning brooms
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/30—Brushes for cleaning or polishing
    • A46B2200/3066—Brush specifically designed for use with street cleaning machinery

Definitions

  • the present invention relates to a rotary driven floor cleaning device with a plurality of circumferentially mounted on a rotating body exchangeable work tools, wherein the respective work tools on its side facing away from the bottom have a molded body, at least in a section transverse to the longitudinal axis of the working tool in its cross-sectional shape over the Cross-sectional shape of the working tool in a subsequent, the ground-facing portion of the working tool protrudes laterally and over which a working tool is held in each case in a holding device of the floor cleaning device.
  • the present invention also relates to a work tool formed from a shaped body and a tool part.
  • a generic floor cleaning device and a generic working tool is from the document DE 94 11 562.1 known.
  • a sweeping brush is disclosed, which serves in particular to mechanically eliminate on fixed surfaces of all kinds of wild herbs.
  • the work tools such as braided wire, flat wire steel tufts, plastic tufts mixed with wire or stranded wire braided into a steel rope, are attached to a turntable, which is driven in rotation. Touch the bottom ends of the working tools in the rotational movement of the turntable the soil, so wild herbs that are in the effective range of the working tools, damaged, separated from the root system and carried away.
  • the working tools each have a molding on their side facing away from the bottom.
  • the shaped body is a clamping sleeve that holds the wire tufts or the steel rope from the outside and keeps clamped therein.
  • Section of the clamping sleeve is this transversely to the longitudinal axis of the working tool in its cross-sectional shape over the cross-sectional shape of the working tool in an adjoining, the bottom forming and the tool part forming portion of the working tool, namely the clamped in the clamping sleeve held wire tufts or the steel rope, laterally over.
  • the floor cleaning device can be designed as a handheld device, as an attachment to carrier vehicles or as a separate pushed or provided with a wheel drive device.
  • a carrier vehicles for example, garden tractors, municipal vehicles or tractors come into consideration, and on larger carrier vehicles or their own devices and several floor cleaning devices can be grown next to or behind each other.
  • the drive of the turntable can be made depending on the configuration via a combustion, hydraulic or electric motor or a drive shaft which is connected to the drive of a carrier vehicle. With such a device satisfactory work results can be achieved.
  • the tools are subject to considerable wear during use and must therefore be replaced again and again.
  • a plurality of work tools In the scriptures DE 94 11 562.1 disclosed device, for example, twelve working tools are shown, which are attached to the turntable via a hinge.
  • the propeller shaft To replace a working tool, the propeller shaft must be removed from its installed position, removed the working tool, brought the new working tool back into the installed position and the PTO shaft are re-installed in their installed position.
  • screws and nuts with which the PTO shaft is attached often only be cleaned and made common before it can be worked at all. While a single work tool can still be exchanged in a manageable time, this results in a considerable amount of time in the case of several work tools.
  • the holding device comprises two clamping elements, of which a first clamping element is held in its holding position via a clamping means against the second clamping element, at least one of the clamping elements in a release of the clamping means in a stroke direction to the other clamping element movable is, the moldings have a non-circular cross-sectional shape, at least one of the clamping elements in the support region of a respective working body has a receiving pocket for a shaped body in which a molded body is held positively in the holding position of the clamping elements, wherein the receiving pocket in the holding position of the clamping elements of the two clamping elements together is closed, and the receiving pocket in the holding position on the side facing the bottom has a constriction to the cross-sectional shape of the shaped body.
  • the object is achieved for a generic molded body by having an outer shape with which it is held in a form-fitting manner in the receiving pocket of a floor cleaning device.
  • the clamping elements may be turntables, of which at least one is driven in rotation.
  • the turntables need not have a closed surface, they can also have openings, for example, for reasons of weight or the air flow within the floor cleaning device.
  • the clamping elements can together form the rotary body to which the work tools are mounted circumferentially.
  • the clamping means may be one or more screws, clamps or tension wires with which the clamping elements are held in the holding position to each other. Due to the holding position of the clamping elements, the moldings are first held positively in their working position. About the one or more of the clamping means but also such holding forces can be applied to the clamping elements that they hold on their outer periphery between them in the holding position, the moldings of the work tools also frictionally engaged. Thus, the working tools can not be inadvertently released from its installation position even at normal rotational speeds of a rotary body during its use.
  • the receiving pocket is closed in the holding position of the clamping elements of the two clamping elements together, the receiving pocket is at least so far open after a lifting movement of a clamping element from the other clamping element that the molding of a held in the receiving pocket working tool can be removed from the receiving pocket.
  • closed positive receiving pocket is not to be understood that this must be completely completed in the holding position of the clamping elements completely peripherally and / or head and bottom side to the outside. Closed in the sense of the invention means that the molded body is in the holding position of the clamping elements of these at least form-fitting so encompassed that it can no longer accidentally come loose from the receiving pocket, even if not working if a pressure on the working tools acts and / or the work tools are relieved. In this sense, a receiving pocket must also not completely form-fit a molded body, it is sufficient if the shaped body - for example, on lateral edges - as far as positively encompassed, that he can not accidentally come loose from the receiving pocket.
  • joints, holes and slits may still be open to the outside in the region of the receiving pocket in the peripheral region of the molded body. Such openings may even be advantageous in order to avoid or at least reduce the accumulation of dirt in a receiving pocket.
  • a minimum form of a positive receiving pocket can thus guide the molded body laterally against at least two points and secure against accidental falling out by a front-side locking tab.
  • each of the two clamping elements at least in the holding position forms a part of the receiving pocket, because then with a movable clamping element, a portion of the receiving pocket in relation to the other part is movable and thereby increases the receiving pocket for removal and installation of a shaped body and reduced can be, also advantageously one of the clamping elements, in particular the not so easily movable clamping element, can serve as a kind of stop.
  • the constriction is advantageously formed on one of the clamping elements.
  • the constriction can be dimensioned so that after a lifting movement of a clamping element from the other clamping element, the bottom-side opening is no longer blocked, so that the shaped body can then be easily removed from the receiving pocket.
  • the shape of the shaped body and the shape of the receiving pocket are thus matched to one another such that a positive position of the shaped body in the receiving pocket is established in the holding position of the clamping elements.
  • the manufacturing costs for the tools are reduced because they no longer have holes, threads and the like. It suffices a suitable shape of the molding. Due to the positive fixing of the moldings in the holding position of the clamping elements also reduces the risk that working tools unintentionally during operation could solve because of any assembly errors. It is sufficient to hold the holding elements again stretched by the clamping means to lock the work tools safely in their installed position. It must therefore be securely fixed again only the clamping device.
  • the shaped bodies have a non-circular cross-sectional shape. Due to the non-circular cross-sectional shape of the molding is prevented that this can rotate with the working tool during the working operation in the receiving pocket.
  • the floor cleaning device works more precisely when the working tools are held rotationally fixed in a receiving pocket.
  • the non-circular cross-sectional shape can be realized for example with an oval, four-, six- or octagonal cross-section of the shaped body in the region of the receiving pocket.
  • the invention extends from a first clamping element to the second clamping element, a fastening bolt which is rigidly connected to the first clamping element and in the holding position of the clamping elements, the second clamping element engages through an opening located in the second clamping element with one end, wherein in the holding position on this end the clamping device is placed.
  • the fastening bolt By the fastening bolt, the two clamping elements are aligned exactly to each other.
  • the fastening bolt also offers a good opportunity to clamp the two clamping elements against each other.
  • the fastening bolt may be formed, for example, as a bolt on which a clamping screw can be placed.
  • the clamping screw can be formed, for example, as a thumbscrew, which can be screwed up and down without tools.
  • a clamping screw is advantageous because it can only be turned up as far as it is necessary to the working tools from their installation position in the respective Removable receiving pocket. It is then not necessary to completely lift the second clamping element from the first clamping element. As a result, it can be avoided that unintentionally several or all work tools fall out of their installation position uncontrolled after loosening the clamping means.
  • a screw as a clamping means
  • other clamping means can be easily detachable and tightened again attached to the mounting bolts.
  • the fastening bolt can be dimensioned in terms of its length so that the clamping means can only be fastened to it when all work tools are in a secured desired position. This reduces the possibility of maintenance errors.
  • the clamping elements form a plurality of receiving pockets and are arranged concentrically with each other. Due to the concentric arrangement results in a lifting movement of a clamping element in relation to the other clamping element an identical effect on the moldings: either at the same time all held more firmly in the receiving pockets, or it will all be solved simultaneously. This reduces the assembly effort when replacing the work tools.
  • the concentric arrangement is particularly advantageous when a clamping element is movable along the fastening bolt, which allows central alignment and guidance.
  • the fastening bolt is placed on the drive shaft of the clamping elements.
  • the drive shaft provides a good attachment for the mounting bolt. It is well supported by their storage against the machine frame and can well absorb the forces and divert into the rest of the device, which during operation of the device on the Floor cleaning device and in particular act on the working tools and the clamping elements.
  • the first clamping element is guided against the second clamping element via guides in the stroke direction in its lifting movement, wherein the guides are rigidly connected to the first clamping element.
  • the guides may for example consist of cylindrical pins connected to the first clamping element, via which the second clamping element can slide up and down with appropriately dimensioned guide holes. This ensures that the clamping elements are always in a correct relative position to each other in order to be able to close the receiving pockets safely and functionally together with their shape. The risk that a shaped element could tilt unfavorably in a receiving pocket is thereby reduced.
  • the tilt angle can be limited by which the second clamping element can be raised to the first clamping element.
  • a limited tilt angle is particularly advantageous if the second clamping element should be so far raised only in the area of a receiving pocket that can be removed only from this receiving pocket a working tool and a new one can be used. This avoids that already replaced working tools fall out of the receiving pocket again when a working tool is removed at a different point of the clamping elements from the receiving pocket.
  • the guides have a stop by which the Hubhogs noir the second clamping element is limited. Due to the attacks, the second clamping element can not unintentionally detach from the first clamping element, without having to be held for it. This additionally simplifies the tool change. By the attacks and the safety of the device is higher, because the second clamping element can not unintentionally detach from the first clamping element during operation of the device, it can be kept in a position in which it still secures the moldings of the working tools against accidental falling out ,
  • At least one energy store is arranged between the first and second clamping element, which presses apart the two clamping elements with its force, at least in the holding position.
  • a power storage for example, a spring is considered.
  • the energy storage serves the purpose of keeping the clamping elements as free of play as possible. Even if the clamping screw is partially released, the energy storage can advantageously help to keep the second clamping element in a play-free debit position. This additionally facilitates the removal and installation of new work tools.
  • the receiving pockets on a longitudinal central axis which is employed to the direction of force of the clamping means at an angle.
  • the clamping force exerted by the clamping means on the second clamping element transferred directly to the obliquely arranged along the longitudinal center axis of the receiving pockets contact surfaces of the shaped body and the receiving pockets. This results in an immediate Clamping force on the moldings, which are held not only form-fitting, but in addition also non-positively in the respective receiving pockets.
  • the bevelled surfaces may be formed in particular on the clamping element facing away from the bottom.
  • the tapered surfaces make it possible that the moldings wedge in their receiving pocket, if they are not accurately formed dimensionally accurate to the shape of the receiving pocket or the clamping elements are not sufficiently firmly clamped to each other.
  • a molded article when pushed upwardly by a ground contact of the work tool, slips with an upper edge against the tapered surface, twisting relative to the longitudinal center axis of the receiving pocket until it is wedged within its receiving pocket can not slide upwards because the molded body abuts at other points of its circumference on side walls of the receiving pocket. Due to the inclined surface so not exactly dimensionally stable moldings can be fixed firmly, and even a game between the clamping elements in the receiving pockets because of an insufficiently tensioned clamping means can be compensated over the tapered surface.
  • the first clamping element and the second clamping element each have a bowl shape, the peripheral edges are angled to the plane of rotation on the ground to running.
  • the second clamping element has a smaller diameter than the first clamping element, so that the second clamping element is at least partially received in the holding position of the first clamping element.
  • a fail-safe is arranged on one of the clamping elements in the region of a receiving pocket.
  • the fail-safe for example, consist of a clamping strap or a retaining spring.
  • the failover is advantageously designed so flexible that the failover yields on the one hand when a working tool with vigorously moved past her, on the other hand, however, such a holding force on a working tool that this is held in place by the failover in the respective position.
  • the fail-safe can remain permanently in the respective installation position. This saves additional assembly steps, and the fail-safe is then hardly lost.
  • the failover can additionally safeguard the work tools not only during assembly, but also during operation of the device. The reliability of the device is thereby increased.
  • the failover is arranged and designed so that it holds the working tool at the transition from the tool part to the molding. The projection formed by the shaped body in this area in relation to the tool part then generates an additional form-locking holding force against unwanted falling out.
  • Fig. 1 is a view obliquely from above on an exemplary floor cleaning device 2 is shown.
  • the floor cleaning device 2 has a motor 4, an axle with two wheels 6 and a front cover housing 8, under which the in Fig. 2 Rotary body 10 shown in cross section is located.
  • the floor cleaning device 2 may be formed as a hand-held tool or as an attachment for a carrier vehicle.
  • the floor cleaning device 2 only has a single body of revolution 10, but it is also conceivable that the floor cleaning device 2 has a plurality of rotating body 10, which can be arranged side by side, partially offset one behind the other or in any other arbitrary arrangement.
  • the Fig. 2 shows a cross-sectional view through a rotary body 10.
  • a fastening bolt 14 with which a first clamping element 16 and a second clamping element 18 are connected. While the first clamping element 16 as well as the fastening bolt 14 are fixedly connected in the embodiment with the drive shaft 12, the second clamping element 18 in the stroke direction H on the mounting bolt 14 is movable.
  • the second clamping element 18 is held in its position by a clamping screw 20 which is screwed onto the fastening bolt 14. Between the first clamping element 16 and the second clamping element 18, a tension spring 22 is still placed on the fastening bolt 14. When the clamping screw 20 is screwed on, the tension spring 22 is pressed. In the depressed position, the tension spring 22 exerts a clamping force stored in it on the second clamping element 18, which is thereby pushed away from the first clamping element 16.
  • Fig. 2 the clamping elements 16, 18 are shown in a holding position, in which the clamping elements 16, 18 keep the respectively consisting of a steel rope 24 and a mold body 26 working tools 28 clamped.
  • a working tool 28 is shown, in which the shaped body 26 projects in a section transverse to the longitudinal axis L of the working tool 28 in its cross-sectional shape over the cross-sectional shape in the region of the steel cable 24 by a projection distance 30.
  • the longitudinal axis L of the working tool 28 and the longitudinal center axis of the receiving pocket 32 are in Fig. 2 identical and indicated by a dashed line.
  • the predetermined by the clamping screw 20 spatial position of the second clamping member 18 in relation to the first clamping member 16 results in the region of the receiving pocket 32 a clamping situation in which the shaped body 26 of the walls of the clamping elements 16, 18 in the receiving pocket 32 positively and non-positively is held. Slipping out of the working tool 28 from the receiving pocket 32 is additionally by a constriction 34th prevented, which corresponds in the holding position of the second clamping member 18 in the embodiment about the size of the supernatant dimension 30.
  • the constriction 34 blocks the molded body 26 against accidental falling out of the receiving pocket 32nd
  • the second clamping element 18 In the second clamping element 18 is an opening 36 through which the fastening bolt 14 is passed. With the opening 36, the second clamping element 18 in the stroke direction H along the mounting bolt 14 is movable.
  • the second clamping element 18 is additionally guided in the exemplary embodiment by guides 38 in its lifting movement.
  • guides 38 One of the two in Fig. 2 shown guides 38 is shown in a sectional view. In this sectional view, a bolt is visible, which is surrounded by a sleeve in the lifting area.
  • the guide 38 has downwards over a stop 40, by which the lifting movement of the second clamping member 18 is limited.
  • the receiving pocket 32 has at the top over a tapered surface 42, through which the cross section of the receiving space in the receiving pocket 32 tapers. If the shaped body 36 in the receiving pocket 32 should continue to move upwards, it strikes the bevelled surface 42, which inhibits an upward movement of the shaped body 26 by its angle of attack and blocks it depending on the geometric conditions at some point.
  • Fig. 3 the rotary body 10 is shown in an open position.
  • the second clamping element 18 has been displaced downwards relative to the first clamping element 16.
  • the second clamping element 18 rests on the stops 40 in the region of the guides 38.
  • the lifting movement H down the second clamping element 18 was compared to the first clamping member 16 so far downwards displaced that the shaped body 26 of the working tool 28 is no longer held in a form-fitting and non-positive manner in the receiving pocket 32. Rather, the receiving pocket 32 is opened so far that now the shaped body 26 can be removed obliquely to the side from the receiving pocket 32.
  • the constriction 34 has been displaced so far down that it no longer blocks the removal of the shaped body 26 from the receiving pocket 32.
  • FIG. 3 In the cross-sectional view in Fig. 3 are now in the lowered position of the second clamping element 18, the heads of the moldings 26 of other work tools 28 recognizable.
  • Fig. 3 it can be seen that the clamping screw 20 has been turned on the fastening bolt 14. As a result of the screwing the tension spring 22 has been relaxed. However, the tension spring 22 still has so much force that it fixes the second clamping element 18 in a centered orientation and position.
  • FIG. 4 is marked by the circles V and VI, which cut-outs magnifications in the FIGS. 5 and 6 you can see.
  • Fig. 5 an enlarged view of the guides 38 is shown, wherein in the representations acc. of the 4 to 6 the clamping elements 16, 18 are in a holding position.
  • the guide sleeve of the guide 38 is screwed onto the first clamping element 16 with a retaining screw 44, that the guide 38 is fixedly connected to the first clamping element 16.
  • Fig. 6 can be seen in the enlargement that the molded body 26 is positively held in the receiving pocket 32, wherein the spatial shape of the receiving pocket 32 is formed by wall portions of the first clamping member 16 and the second clamping member 18.
  • the molded body 26 is additionally secured in the receiving pocket 32 by the stop 40 against accidental slipping out.
  • the Fig. 7 to 9 show the same elements as the 4 to 6 , but in an open position of the clamping elements 16, 18.
  • the working tool 28 with the shaped body 26 in the direction of in Fig. 9 drawn arrow can be removed from the receiving pocket 32.
  • a new working tool 28 can be inserted into the receiving pocket 32 when the clamping elements 16, 18 in the in the Fig. 7 to 9 shown relative position to each other.
  • the second clamping member 18 is rotatably connected to the mounting bolt 14 and instead of the second clamping member 18 now the first clamping member 16 in the stroke direction H relative to the second clamping member 18 is movable.
  • Fig. 10 shows a view from below of a rotary body with a fail-safe 46 attached thereto.
  • the fail-safe 46 is configured and arranged so that it reduces in its installed position, at least in the holding position, the free cross section of the bottom-side opening.
  • the fail-safe 46 is a spring which extends transversely to the longitudinal axis L of the working tool 28 and secures the shaped body 26 in the axial direction against unintentional sliding out of the shaped body 26 from the receiving pocket 32. The fuse still works even if a clamping element 16, 18 has already been lifted a piece from the other clamping element 16, 18.
  • Fig. 11 shows a sectional view through a receiving pocket 32 with a located at its bottom end failover 46.
  • the clamping element 18 is already a piece from the corresponding Clamping element 16 has been lifted.
  • the molded body 26 of the working tool 28 can be easily removed from the receiving pocket 32 in the normal case.
  • a shaped body 26 could slide out of the receiving pocket 32 even without a touch. This is especially true when working on other work tools 28 of a rotating body 10 and by the movement of the clamping elements 16, 18 dissolve rotating body 10 at other locations of the receiving pockets 32.
  • the fail-safe 46 in the form of a spring which holds a shaped body 26 in its installed position in the receiving pocket 32.
  • the fail-safe 46 can be easily pushed aside because of their design as a spring when a shaped body 26 is inserted into the receiving pocket 32 or removed therefrom.
  • the invention is not limited to the above embodiments. It is not difficult for a person skilled in the art to modify the exemplary embodiments in a manner which seems suitable to him in order to adapt them to a specific application.

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EP18170428.9A 2017-05-04 2018-05-02 Porte-outil et outil de travail pour un dispositif de nettoyage de sol entraîné en rotation Active EP3398478B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017109622.1A DE102017109622A1 (de) 2017-05-04 2017-05-04 Werkzeughalterung und Arbeitswerkzeug für rotierend angetriebene Bodenreinigungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3398478A1 true EP3398478A1 (fr) 2018-11-07
EP3398478B1 EP3398478B1 (fr) 2020-04-01

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EP18170428.9A Active EP3398478B1 (fr) 2017-05-04 2018-05-02 Porte-outil et outil de travail pour un dispositif de nettoyage de sol entraîné en rotation

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EP (1) EP3398478B1 (fr)
DE (1) DE102017109622A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB861958A (en) * 1957-07-18 1961-03-01 Lewin Road Sweepers Ltd Improvements in or relating to brushes
US3101501A (en) * 1961-03-06 1963-08-27 John P Horton Rotary broom for street sweeper
DE1632382A1 (de) * 1966-11-09 1971-11-18 Brodd Brdr Ab Borstenbesatz,insbesondere fuer Strassenkehrmaschinen
DE3937053C1 (en) * 1989-11-07 1991-03-21 Anton Weber Kg, Mech. Buerstenfabrik-Maschinenfabrik, 6277 Bad Camberg, De Flat rotary brush head - has bristles made up of bundles of flat-section wires
DE9411562U1 (de) 1994-07-16 1994-09-08 Maschinen-Mohr, Inh. Hermann Mohr, 91792 Ellingen Kehrbürste (Wildkrautbürste) zum Abkehren von befestigten Flächen
EP1419713A1 (fr) * 2002-11-14 2004-05-19 Clemens Jacobus Franciscus Maria Jorissen Appareil de balayage, méthode pour la fabrication d'un appareil de balayage et appareil de nettoyage
EP1623652A1 (fr) * 2004-07-23 2006-02-08 Koti Onroerend Goed b.v. Brosse rotative pour balayeuse
US20090119858A1 (en) * 2006-04-10 2009-05-14 Sajakorpi Oy Brush tuft for gutter broom

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB861958A (en) * 1957-07-18 1961-03-01 Lewin Road Sweepers Ltd Improvements in or relating to brushes
US3101501A (en) * 1961-03-06 1963-08-27 John P Horton Rotary broom for street sweeper
DE1632382A1 (de) * 1966-11-09 1971-11-18 Brodd Brdr Ab Borstenbesatz,insbesondere fuer Strassenkehrmaschinen
DE3937053C1 (en) * 1989-11-07 1991-03-21 Anton Weber Kg, Mech. Buerstenfabrik-Maschinenfabrik, 6277 Bad Camberg, De Flat rotary brush head - has bristles made up of bundles of flat-section wires
DE9411562U1 (de) 1994-07-16 1994-09-08 Maschinen-Mohr, Inh. Hermann Mohr, 91792 Ellingen Kehrbürste (Wildkrautbürste) zum Abkehren von befestigten Flächen
EP1419713A1 (fr) * 2002-11-14 2004-05-19 Clemens Jacobus Franciscus Maria Jorissen Appareil de balayage, méthode pour la fabrication d'un appareil de balayage et appareil de nettoyage
EP1623652A1 (fr) * 2004-07-23 2006-02-08 Koti Onroerend Goed b.v. Brosse rotative pour balayeuse
US20090119858A1 (en) * 2006-04-10 2009-05-14 Sajakorpi Oy Brush tuft for gutter broom

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Publication number Publication date
DE102017109622A1 (de) 2018-12-20
EP3398478B1 (fr) 2020-04-01

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