EP1279363B1 - Apparatus for fixing a brush body to the housing of a floor cleaning device - Google Patents

Apparatus for fixing a brush body to the housing of a floor cleaning device Download PDF

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Publication number
EP1279363B1
EP1279363B1 EP02015964A EP02015964A EP1279363B1 EP 1279363 B1 EP1279363 B1 EP 1279363B1 EP 02015964 A EP02015964 A EP 02015964A EP 02015964 A EP02015964 A EP 02015964A EP 1279363 B1 EP1279363 B1 EP 1279363B1
Authority
EP
European Patent Office
Prior art keywords
receiving element
brush body
cleaning machine
push
widening
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.)
Expired - Lifetime
Application number
EP02015964A
Other languages
German (de)
French (fr)
Other versions
EP1279363A1 (en
Inventor
Axel Zimny
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.)
Hako Werke GmbH and Co
Hako GmbH
Original Assignee
Hako Werke GmbH and Co
Hako GmbH
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 Hako Werke GmbH and Co, Hako GmbH filed Critical Hako Werke GmbH and Co
Publication of EP1279363A1 publication Critical patent/EP1279363A1/en
Application granted granted Critical
Publication of EP1279363B1 publication Critical patent/EP1279363B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B17/00Accessories for brushes
    • A46B17/02Devices for holding brushes in use
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/002Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/0095Removable or interchangeable brush heads
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02Floor surfacing or polishing machines
    • A47L11/10Floor surfacing or polishing machines motor-driven
    • A47L11/14Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/16Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes
    • A47L11/164Parts or details of the brushing tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02Floor surfacing or polishing machines
    • A47L11/10Floor surfacing or polishing machines motor-driven
    • A47L11/14Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/18Floor surfacing or polishing machines motor-driven with rotating tools the tools being roll brushes
    • A47L11/19Parts or details of the brushing tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/22Floor-sweeping machines, hand-driven
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24Floor-sweeping machines, motor-driven
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/32Carpet-sweepers
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036Parts or details of the surface treating tools
    • A47L11/4038Disk shaped surface treating tools
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/02Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
    • E01H1/05Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/30Brushes for cleaning or polishing
    • A46B2200/302Broom

Definitions

  • the invention relates to a device for fastening and for driving a brush body of a cleaning machine, in particular a floor cleaning machine, with a substantially hollow cylindrical receiving element and an insertable insertable therein, wherein the positive power transmission is ensured by at least one projection and at least one corresponding recess.
  • a disadvantage proves that the change of the roller brush is complicated and expensive, since the brush body must be exactly aligned with the drive element and introduced so that a positive connection between each projection and the associated recess is guaranteed. This is especially difficult with roller brushes of considerable length.
  • when sliding the brush body and after positive connection of the connection between the drive element and the brush body by tilting the brush body may cause damage to the drive element and / or at the relevant end of the brush body.
  • a cleaning machine which has a rigid connection between the machine-side driver and the brush plate.
  • separate means for the axial fixation of the brush plate on the one hand and for torque transmission on the other hand are provided.
  • For the axial fixation serve resilient projections of the driver.
  • For torque transmission recesses are provided on the front side of the machine-side driver, engage in the correspondingly arranged elevations in the brush plate in the locked state.
  • the object of the invention is therefore to improve a known device so that an insertion of the brush body and thus a change while optimizing the storage of the brush body is easier.
  • This object is achieved in that either the receiving element with the brush body and the insertion element with the cleaning machine is in communication or the receiving element with the cleaning machine and the insertion element with the brush body in conjunction and that related at least one projection against a restoring force in the radial direction can be deflected to the axis of rotation and at least one in the radial direction first expanding and then decreasing area is provided, which is seen upstream of a deflectable projection corresponding recess in the insertion direction, so that the widening area prevents the brush body can solve independently again because again the restoring forces must be applied to change the brush body, and that the recesses are formed as recesses extending parallel to the axis of rotation.
  • the receiving element is connected either to the brush body and the insertion element with the cleaning machine. But it is also possible that the receiving element is in communication with the cleaning machine and the insertion element with the brush body.
  • the radial expansion and the subsequent reduction is based on the center axis of the insertion element.
  • the extension and the subsequent taper is seen from the outer lateral surface of the receiving element, so that the area is formed pointing in the direction of the axis of rotation.
  • each projection is first deflected against the restoring force due to the upstream in the direction of insertion, in the radial direction first widening area deflected. At this stage, there is still no positive connection. Only when each projection is seen in the insertion direction on the opposite side of the widening region, each projection is due to its back radially decreasing area due to its restoring force deflected back to its original position, so that each projection engages in the corresponding recess and so a form-fitting Connection is made. In contrast to the prior art, this intervention does not require precise alignment of the brush body prior to insertion, ie. H. each projection adapts by its flexibility of the contour of the corresponding counterpart, in which the recess in question is provided, and thus threads itself.
  • the first expanding and then decreasing area will be referred to as expanding area only.
  • the expanding area absorbs the radial forces exerted on the brush body by the substrate to be cleaned. At the same time ensures the widening area in conjunction with the deflectability of the projections tilting of the brush body, even if there is already a positive connection between the brush body and the device according to the invention. As a result, z. B. damage during assembly, as may occur when not yet mounted end plate tilting forces no longer need to be absorbed by the storage of the cleaning machine, but are reduced by tilting. In addition, the expanding prevents Area that the brush body can solve independently again, as to change the brush body again the restoring forces must be applied.
  • the inventive device is due to the deflectability of the projections also z. B. as an escape compensation between the two bearings.
  • the device according to the invention serves as overload protection for the cleaning machine against hard shocks with short-term overload.
  • the restoring forces of the projections can be generated in the simplest case by a spiral spring which press, for example, pins formed as projections in the corresponding direction. But there are also other components conceivable that are deflectable against a restoring force. So z. As well as curved spring wires that can yield radially and engage in corresponding recesses used.
  • At least one projection deflectable against a restoring force in a radial direction away from the axis of rotation may be integrally formed on the receiving element and the corresponding recess and the first expanding and subsequently decreasing region may be provided in the insertion element.
  • the projections When inserting the insertion element into the receiving element, the projections are deflected away from the axis of rotation against the restoring force by the widening region. After passing through the widening region, the projections are again deflected back in the direction of the axis of rotation due to the restoring forces.
  • the range expands and decreases seen in radial respect from the axis of rotation of the insertion element.
  • the receiving element may have at its end approximately parallel to the axis of rotation of the receiving element extending slots to form arm-shaped receiving element sections.
  • the restoring forces can be generated additionally or exclusively by the arm-shaped receiving element sections themselves.
  • the receiving element sections are partially deflected together with the projections away from the axis of rotation, so that the push-in element can be inserted.
  • the arm-shaped receiving element sections can twist easily and thus feathers like a torsion spring from the hard strokes.
  • the projections do not migrate completely out of the recesses in order to avoid destroying the connection.
  • each receiving element section may have at least one radial projection facing the axis of rotation.
  • At least one projection deflectable against a restoring force in a radial direction to the axis of rotation may be integrally formed on the insertion element and the corresponding recess and the region (s) which widens first and then subsequently decreases (e). be provided on the inside in the receiving element.
  • the widening area (s) is (are) formed on the receiving element in such a way that he (she) also points radially inward.
  • the projections are deflected against the restoring forces during insertion through the integrally formed on the inside of the receiving element widening area on the axis of rotation.
  • the restoring forces can be generated in addition or exclusively by the arm-shaped Einschiebelementabitese itself.
  • the area expands and decreases in radial respect as seen from the outer surface of the receiving element.
  • the insertion element may have end-side slots extending approximately parallel to the axis of rotation of the insertion element, forming arm-shaped insertion element sections.
  • Each Einschiebelementabites can have at least one radial, pointing away from the axis of rotation projection.
  • the first expanding and then decreasing area may be formed circumferentially. If the widening area is formed on the insertion element, this is located on the outside of the push-in element. In the reverse arrangement in which the deflectable against a restoring force in a radial direction to the axis of rotation projections are provided on the insertion element, the widening portion is formed on the inside in the region of the receiving opening of the receiving element. In this case, it is advisable that a plurality of projections are provided, which engage behind the widening area. Depending on the application, the individual projections may have varying degrees of restoring forces. This is particularly important in cleaning machines with disc brooms, which are stored only on one side. At least some projections must have higher restoring forces to ensure a secure fixing of the plate plate and to prevent accidental release due to shocks during transport or by approaching an obstacle. But it is also quite possible that the widening area is provided only in the region of a projection.
  • the region which widens first and then subsequently decreases conically on the side facing away from the free end in the direction of insertion is tapered or widening. It is obvious that when the expansion area is formed on the insertion element, the diameter of the widening area on the side facing away from the free end decreases in the direction of insertion.
  • the widening portion is formed on the inside of the receiving element, so that on the side facing away from the free end of the distance between the rotation axis and the range increases in the direction of insertion increases.
  • the free end of the insertion element can be tapered, preferably tapered tapered, be formed.
  • the push-in element or the receiving element may have an approximately cylindrical and circumferentially at least one elevation exhibiting driver part, so that the device according to the invention can be used as an adapter.
  • the driver part is designed so that conventional brush body can also be used in a cleaning machine equipped with the device according to the invention.
  • the driver member may be formed, for example, tapered and outside teeth have as surveys.
  • the conventional brush body has a corresponding end-side recess into which the driver part can be inserted.
  • the driver part can be formed either on the insertion element or on the receiving element or z. B. be fixed by means of screws. Other types of connection are of course possible.
  • the invention further relates to a cleaning machine with at least one drive, preferably electric motor, and at least one brush body, wherein at least one brush body by means of a device according to the invention with the cleaning machine attachable or can be driven by this, if further the receiving element with the brush body and the insertion element with the Cleaning machine is in communication.
  • At least one roller brush rotating about a horizontal axis or a sweeping roller or at least one disc brush or a disc brush may be provided as the brush body.
  • the cleaning unit of a cleaning machine shown in FIG. 1 has a housing 1, in which two brush bodies 2 designed as roller brushes are provided.
  • Each tunnel is closed at the accessible end to be opened with a cover plate 3.
  • a projecting into the tunnel bearing pin 4 for supporting the brush body 2 is provided.
  • the respective end of the tunnel opposite the end plate 3 has the device according to the invention which is described in detail in the other figures and which comprises a drive transmission mechanism 5, such as. B. a chain is connected to the associated drive 6, for example, with an electric motor. About connections 7 each drive 6 is connected to the supply system.
  • the cleaning unit is connected to a guide device, not shown, on the cleaning machine.
  • FIG. 2 shows the device with a push-in element 9, which is connected to a machine-side shaft 10.
  • the insertion element 9 has recesses 11 on the circumference, these recesses 11, viewed in the direction of insertion 12, being preceded by an area 13 which extends first circumferentially and then decreases.
  • the first expanding and subsequently decreasing region 13 will be referred to as the expanding region 13 only.
  • the trained as a disc brush or disc brush brush body 2 has the corresponding receiving element 14, the arm-shaped receiving element sections 15 having pointing in the direction of the axis of rotation 16 projections 17.
  • the receiving element 14 is pushed in the direction of insertion 12 on the insertion element 9, so that the projections 17 and partially the receiving element sections 15 due to the circumferential widening portion 13 in the direction of arrows 18 away from the axis of rotation 16 against the Restoring force deflected and expanded in this respect.
  • the widening region 13 absorbs on the one hand the radial forces which are exerted on the brush body 2 by the substrate to be cleaned. At the same time ensures the widening region 13 a sufficient concentricity of the brush body 2 during operation, since the receiving element 14 is supported on its inner peripheral surface on the widening portion 13 and still so much play between the insertion element 9 and the inner peripheral surface of the receiving element 14 remains that a Pivoting of the brush body 2, as he z. B. is shown in Fig. 6, is possible.
  • the expanding portion 13 ensures tilting of the brush body 2 in the device according to the invention, as shown in detail in FIG. Such tilting can occur during assembly when the end plate 3 is not yet mounted. Due to the tilting damage to the device according to the invention is avoided.
  • the shaft 10 in the region of the insertion element 9 has a groove 19 into which a substantially rectangular-shaped spring 20 partially engages and thus produces a positive connection between the shaft 10 and the insertion element 9.
  • the insertion element 9 is secured by means of a securing ring 21.
  • FIG. 4 shows a section through a brush body 2 embodied as a roller brush or sweeping roller.
  • the receiving element 14 is provided in the end plate of the brush body 2, which is opposite the end plate 3, not shown.
  • the receiving element 14 is fixed in the interior of the brush body 2 by one or more securing pin (s) 22.
  • securing pin s
  • the receiving element 14 may be injected directly into the brush body 2.
  • the insertion element 9 in turn has at its end a shaft 23 on which in turn preferably a pulley 24 is flanged end. Via a belt, not shown, the pulley 24 is connected to the relevant drive 6.
  • the housing 1 has in the region of the shaft 23 a corresponding recess in which at least one bearing 25 is used for the shaft 23.
  • the free end 26 of the insertion element 9 is frustoconical, so that the insertion element 9 can be easily inserted into the receiving element 14. This proves to be particularly advantageous when assembling very long brush bodies 2 designed as roller brushes.
  • the free end 26 facing side 27 of the widening portion 13 increases conically, at a slight angle to the axis of rotation 16 of the insertion element 9, to, so that the projections 17 when inserted successively against the restoring force of the rotation axis 16 are deflected away.
  • the side facing away from the free end 26 side 28 of the widening portion 13 is tapered conically, so that the projections 17 - if the insert member 9 is sufficiently inserted into the receiving element 14 - are gradually reset due to the restoring forces.
  • the projections 17 are again deflected by the frustoconical tapered design of the side 28 of the widening portion 13 against their restoring forces in the direction of arrows 18, so that the brush body 2 can be pulled out of the device according to the invention.
  • the insertion element 9 has on both sides of the widening region 13 a smaller diameter than in the region of the widening region 13, so that the insertion element 9 is bead-like in the region of the widening region 13.
  • the widening region 13 not only absorbs radial forces which are exerted on the brush body 2 by the substrate to be cleaned. Rather, the expanding region 13 in conjunction with the deflectability of the projections 17 and the receiving element sections 15 - as shown in Fig. 6 - allows a tilting of the brush body 2 in the device according to the invention.
  • the receiving element sections 15 shown at the top in this figure no longer rest completely against the insertion element 9. Rather, only the projections 17 engage in the respective recesses 11. However, the receiving element sections 15 shown below in this figure are almost completely on the insertion element 9 on. Such tilting can z. B. occur during assembly when the end plate 3 is not mounted. Due to the possibility of tilting of the brush body 2, damage to the device or the brush body 2 according to the invention is avoided.
  • the receiving element 14 is shown again in detail in various representations. As clearly shown in these figures, the receiving element 14, the arm-shaped receiving element sections 15. At each receiving element section 15, a projection 17 pointing towards the axis of rotation 16, not shown in these figures, is shown. In the illustrated embodiment, the projections 17 have an approximately rectangular shape.
  • each projection 17 is chamfered at the free end of the receiving element 14 opposite edge so that the insertion element 9, not shown, 9 can be easily pulled out of the receiving element 14 in a change of the brush body 2. Between two adjacent receiving element sections 15, a slot 29 is provided in each case. During assembly, i. when inserting the insertion element 9 in the receiving element 14, the projections 17 are deflected together with the receiving element sections 15 against the restoring force.
  • Fig. 10 to 12 show again in detail the structure of a Einschiebiatas 9. This has at the opposite end of the free end 26, the shaft 10 through which the insert member 9 via the drive transmission mechanism 5, not shown, such. B. a chain or a belt is connected to the relevant drive 6.
  • the free end 26 of the insertion element 9 is frustoconical for easy insertion into the receiving element 14 is formed.
  • projecting portions 30 are provided on the insertion element 9 between the adjacent recesses. These sections 30 prevent the projections 17 from being pushed beyond the insertion element 9 in the axial direction, since in the mounted state the receiving element sections 15 with laterally formed projections 31 arranged in the region of the projections 17 touch the sections 30. Furthermore, the sections 30 have a safety function, so that the positive connection between a projection 17 and a recess 11 is not suddenly interrupted during operation.
  • the sections 30 are additionally formed tapering on the free end 26 facing side 32, so that the insertion of the projections 17 in the recesses 11 is simplified and so almost a self-discovery or self-centering is achieved.
  • the height of the sections 30 is selected such that in the inserted state the sections 30 with the projections 17 represent a substantially planar peripheral surface.
  • the sections 30 can also be dispensed with as an axial stop.
  • z. B. the insertion element 9 in the inserted state with the free end 26, the receiving element 14 may be in contact, so that too far insertion is prevented.
  • Fig. 13 shows the object according to Fig. 3, wherein here the reverse arrangement of the device according to the invention is shown.
  • the widening region 13 is integrally formed on the receiving element 14 on the inside. It can clearly be seen that in this embodiment as well, the widening region 13 - as seen from the outer surface of the receiving element 14 and in the direction of insertion 12 - first widened in the radial direction and then decreases again.
  • the insertion element 9 has Einschiebelementabête 33, wherein in each case on both sides of a Einschiebelementabiteses 33 each extending approximately parallel to the axis of rotation 16 slot 34 is provided.
  • the projections 17 are formed so that the projections 17 engage in the operating state in the corresponding recesses 11.
  • the Einschiebelementabitese 33 are shifted against their restoring forces in the direction of the arrows 35 so that the projections 17 are moved away from the recesses 11 out and so the brush body 2 can be withdrawn against the insertion direction 12.
  • the free end 26 in the direction of the recesses 11 tapered conically to simplify the insertion of the Einschiebiatas 9 in the receiving element 14.
  • the free end 26 facing side 27 of the widening portion 13 also runs conically, at a small angle to the axis of rotation 16 of the insertion 9 on the axis of rotation 16, so that the Einschiebelementabterrorisme 33 successively pivoted against their restoring forces when inserted in the direction of the arrows 35 become.
  • the side facing away from the free end 26 28 of the widening portion 13 is formed conically such that upon removal of the brush body 2, the Einschiebelementabitese 33 are deflected against their restoring forces in the direction of the arrows 35.

Abstract

The floor cleaning machine (1) has a drive motor and a transmission mechanism (6) connected to a shaft to which a brush element may be attached. The element may be a flat plate with tufts of brush bristles (2). The flat plate has flexible elements with hooked ends surrounding a central aperture. A short cylindrical member on the end of the drive shaft has recesses into which the hooked ends fit, to hold the brush plate in place.

Description

Die Erfindung betrifft eine Vorrichtung zur Befestigung und zum Antreiben eines Bürstenkörpers einer Reinigungsmaschine, insbesondere einer Bodenreinigungsmaschine, mit einem im Wesentlichen hohlzylinderförmigen Aufnahmeelement und einem darin einschiebbaren Einschiebelement, wobei die formschlüssige Kraftübertragung durch zumindest einen Vorsprung und wenigstens eine entsprechende Aussparung gewährleistet ist.The invention relates to a device for fastening and for driving a brush body of a cleaning machine, in particular a floor cleaning machine, with a substantially hollow cylindrical receiving element and an insertable insertable therein, wherein the positive power transmission is ensured by at least one projection and at least one corresponding recess.

Bekannt sind Bodenreinigungsmaschinen, wie z. B. Straßenreinigungsmaschinen, die um eine horizontal angeordnete Achse rotierende Walzenbürsten aufweisen. Hierzu befinden sich in der Bodenreinigungsmaschine entsprechend der Anzahl der Walzenbürsten in Richtung des zu reinigenden Untergrundes geöffnete Tunnel, wobei in jedem Tunnel über eine seitliche Öffnung eine Walzenbürste hineingeschoben wird. Das dem zu öffnende Ende gegenüberliegende Ende weist meist ein konisch zulaufendes, Vorsprünge aufweisendes Antriebselement auf, in das das entsprechend ausgebildete Ende der Walzenbürste greift. Das Antriebselement selbst ist mit einem Antrieb verbunden. Nach dem Einführen der Walzenbürste bzw. der Kehrwalze wird der Tunnel mit einem entsprechenden Abschlussdeckel verschlossen, der innenseitig einen Lagerstift als Lager für die Walzenbürste aufweist.Are known floor cleaning machines, such. As street cleaning machines, which have a horizontally arranged axis rotating roller brushes. For this purpose are in the floor cleaning machine according to the number of roller brushes in the direction of the substrate to be cleaned tunnel open, in each tunnel via a lateral opening a roller brush is pushed. The end opposite the open end usually has a conically tapering, projections having drive element, in which engages the correspondingly formed end of the roller brush. The drive element itself is connected to a drive. After insertion of the roller brush or the sweeping roller, the tunnel with a corresponding end cap closed, which has on the inside a bearing pin as a bearing for the roller brush.

Als nachteilig erweist sich, dass der Wechsel der Walzenbürste kompliziert und aufwendig ist, da der Bürstenkörper exakt auf das Antriebselement ausgerichtet und eingeführt werden muss, damit ein Formschluss zwischen jedem Vorsprung und der dazugehörigen Aussparung gewährleistet ist. Dies ist insbesondere schwierig bei Walzenbürsten erheblicher Länge. Darüber hinaus kann es beim Aufschieben des Bürstenkörpers und nach Formschluss der Verbindung zwischen dem Antriebselement und dem Bürstenkörper durch Verkippen des Bürstenkörpers unter Umständen zu einer Beschädigung am Antriebselement und/oder am betreffenden Ende des Bürstenkörpers kommen.A disadvantage proves that the change of the roller brush is complicated and expensive, since the brush body must be exactly aligned with the drive element and introduced so that a positive connection between each projection and the associated recess is guaranteed. This is especially difficult with roller brushes of considerable length. In addition, when sliding the brush body and after positive connection of the connection between the drive element and the brush body by tilting the brush body may cause damage to the drive element and / or at the relevant end of the brush body.

Aus der GB-PS 12 10 667 ist eine Reinigungsmaschine bekannt, die eine starre Verbindung zwischen dem maschinenseitigen Mitnehmer und dem Bürstenteller aufweist. Dabei sind getrennte Mittel für die axiale Fixierung des Bürstentellers einerseits und für die Drehmomentübertragung andererseits vorgesehen. Für die axiale Fixierung dienen federnde Vorsprünge des Mitnehmers. Zur Drehmomentübertragung sind an der Stirnseite des maschinenseitigen Mitnehmers Vertiefungen vorgesehen, in die entsprechend angeordnete Erhöhungen im Bürstenteller im eingerasteten Zustand eingreifen.From GB-PS 12 10 667 a cleaning machine is known, which has a rigid connection between the machine-side driver and the brush plate. In this case, separate means for the axial fixation of the brush plate on the one hand and for torque transmission on the other hand are provided. For the axial fixation serve resilient projections of the driver. For torque transmission recesses are provided on the front side of the machine-side driver, engage in the correspondingly arranged elevations in the brush plate in the locked state.

Aufgabe der Erfindung ist es daher, eine bekannte Vorrichtung so zu verbessern, dass ein Einführen der Bürstenkörper und somit ein Wechsel bei gleichzeitiger Optimierung der Lagerung des Bürstenkörpers einfacher ist.The object of the invention is therefore to improve a known device so that an insertion of the brush body and thus a change while optimizing the storage of the brush body is easier.

Diese Aufgabe wird dadurch gelöst, dass entweder das Aufnahmeelement mit dem Bürstenkörper und das Einschiebelement mit der Reinigungsmaschine in verbindung ist oder aber das Aufnahmeelement mit der Reinigungsmaschine und das Einschiebelement mit dem Bürstenkörper in Verbindung ist und dass zumindest ein Vorsprung gegen eine Rückstellkraft in radialer Richtung bezogen auf die Drehachse auslenkbar ist und zumindest ein sich in radialer Richtung zuerst erweiternder und sich anschließend vermindernder Bereich vorgesehen ist, der einer einem auslenkbaren Vorsprung entsprechenden Aussparung in Einschubrichtung gesehen vorgelagert ist, so dass der erweiternde Bereich verhindert, dass sich der Bürstenkörper wieder selbstständig lösen kann, da zum Wechsel des Bürstenkörpers wieder die Rückstellkräfte aufgebracht werden müssen, und dass die Aussparungen als parallel zur Drehachse verlaufende Ausnehmungen ausgebildet sind.This object is achieved in that either the receiving element with the brush body and the insertion element with the cleaning machine is in communication or the receiving element with the cleaning machine and the insertion element with the brush body in conjunction and that related at least one projection against a restoring force in the radial direction can be deflected to the axis of rotation and at least one in the radial direction first expanding and then decreasing area is provided, which is seen upstream of a deflectable projection corresponding recess in the insertion direction, so that the widening area prevents the brush body can solve independently again because again the restoring forces must be applied to change the brush body, and that the recesses are formed as recesses extending parallel to the axis of rotation.

Das Aufnahmeelement steht entweder mit dem Bürstenkörper und das Einschiebelement mit der Reinigungsmaschine in Verbindung. Es ist aber auch möglich, dass das Aufnahmeelement mit der Reinigungsmaschine und das Einschiebelement mit dem Bürstenkörper in Verbindung steht.The receiving element is connected either to the brush body and the insertion element with the cleaning machine. But it is also possible that the receiving element is in communication with the cleaning machine and the insertion element with the brush body.

Sofern der Bereich an dem Einschiebelement angeformt ist, ist die radiale Erweiterung und die sich anschließende Verminderung auf die Mittelachse des Einschiebelementes bezogen. Für den Fall, dass an dem Aufnahmeelement der Bereich vorgesehen ist, ist die Erweiterung und die sich anschließende Verjüngung von der äußeren Mantelfläche des Aufnahmeelementes aus gesehen, so dass der Bereich in Richtung der Drehachse weisend ausgebildet ist.If the region is formed on the insertion element, the radial expansion and the subsequent reduction is based on the center axis of the insertion element. In the event that the area is provided on the receiving element, the extension and the subsequent taper is seen from the outer lateral surface of the receiving element, so that the area is formed pointing in the direction of the axis of rotation.

Bei der Montage, d.h. beim Einführen des Bürstenkörpers in die Reinigungsmaschine, werden die Vorsprünge zunächst gegen die Rückstellkraft aufgrund des in Einschubrichtung gesehen vorgelagerten, sich in radialer Richtung zuerst erweiternden Bereiches ausgelenkt. In diesem Stadium liegt noch keine formschlüssige Verbindung vor. Erst wenn sich jeder Vorsprung in Einschubrichtung gesehen auf der abgewandten Seite des erweiternden Bereiches befindet, wird jeder Vorsprung aufgrund des sich wieder radial vermindernden Bereichs wieder aufgrund seiner Rückstellkraft in seine ursprüngliche Position zurückgelenkt, so dass jeder Vorsprung in die entsprechende Aussparung eingreift und so eine formschlüssige Verbindung hergestellt wird. Bei diesem Eingreifen bedarf es im Gegensatz zum Stand der Technik keiner genauen Ausrichtung des Bürstenkörpers vor dem Einschieben, d. h. jeder Vorsprung passt sich durch seine Flexibilität der Kontur des entsprechenden Gegenstückes, in dem die betreffende Aussparung vorgesehen ist, an und fädelt sich somit selbst ein. Im Folgenden wird der sich zuerst erweiternde und anschließend sich vermindernde Bereich lediglich mit erweiternder Bereich bezeichnet.During assembly, i. when inserting the brush body in the cleaning machine, the projections are first deflected against the restoring force due to the upstream in the direction of insertion, in the radial direction first widening area deflected. At this stage, there is still no positive connection. Only when each projection is seen in the insertion direction on the opposite side of the widening region, each projection is due to its back radially decreasing area due to its restoring force deflected back to its original position, so that each projection engages in the corresponding recess and so a form-fitting Connection is made. In contrast to the prior art, this intervention does not require precise alignment of the brush body prior to insertion, ie. H. each projection adapts by its flexibility of the contour of the corresponding counterpart, in which the recess in question is provided, and thus threads itself. Hereinafter, the first expanding and then decreasing area will be referred to as expanding area only.

Der erweiternde Bereich nimmt die radialen Kräfte auf, die von dem zu reinigenden Untergrund auf den Bürstenkörper ausgeübt werden. Gleichzeitig gewährleistet der erweiternde Bereich in Verbindung mit der Auslenkbarkeit der Vorsprünge ein Verkippen des Bürstenkörpers, auch wenn bereits ein Formschluss zwischen dem Bürstenkörper und der erfindungsgemäßen Vorrichtung besteht. Hierdurch wird z. B. bei der Montage eine Beschädigung vermieden, da eventuell bei noch nicht montiertem Abschlussblech auftretende Kippkräfte nicht mehr von der Lagerung der Reinigungsmaschine aufgefangen werden müssen, sondern durch ein Verkippen abgebaut werden. Zudem verhindert der erweiternde Bereich, dass sich der Bürstenkörper wieder selbstständig lösen kann, da zum Wechsel des Bürstenkörpers wieder die Rückstellkräfte aufgebracht werden müssen.The expanding area absorbs the radial forces exerted on the brush body by the substrate to be cleaned. At the same time ensures the widening area in conjunction with the deflectability of the projections tilting of the brush body, even if there is already a positive connection between the brush body and the device according to the invention. As a result, z. B. damage during assembly, as may occur when not yet mounted end plate tilting forces no longer need to be absorbed by the storage of the cleaning machine, but are reduced by tilting. In addition, the expanding prevents Area that the brush body can solve independently again, as to change the brush body again the restoring forces must be applied.

Die erfindungsgemäße Vorrichtung eignet sich aufgrund der Auslenkbarkeit der Vorsprünge auch z. B. als Fluchtausgleich zwischen den beiden Lagerstellen. Gleichzeitig dient die erfindungsgemäße Vorrichtung als Überlastsicherung für die Reinigungsmaschine vor harten Schlägen bei kurzzeitiger Überlast.The inventive device is due to the deflectability of the projections also z. B. as an escape compensation between the two bearings. At the same time, the device according to the invention serves as overload protection for the cleaning machine against hard shocks with short-term overload.

Die Rückstellkräfte der Vorsprünge können im einfachsten Fall durch eine Spiralfeder erzeugt werden, die beispielsweise als Vorsprünge ausgebildete Stifte in die entsprechende Richtung drücken. Es sind aber auch andere Bauteile denkbar, die gegen eine Rückstellkraft auslenkbar sind. So können z. B. auch gebogene Federdrähte, die radial nachgeben können und in entsprechende Aussparungen eingreifen, verwendet werden.The restoring forces of the projections can be generated in the simplest case by a spiral spring which press, for example, pins formed as projections in the corresponding direction. But there are also other components conceivable that are deflectable against a restoring force. So z. As well as curved spring wires that can yield radially and engage in corresponding recesses used.

Bei einem Ausführungsbeispiel kann zumindest ein gegen eine Rückstellkraft in einer radialen Richtung von der Drehachse weg auslenkbarer Vorsprung innenseitig an dem Aufnahmeelement angeformt sein und die entsprechende Aussparung sowie der sich zuerst erweiternde und sich anschließend vermindernde Bereich in dem Einschiebelement vorgesehen sein. Beim Einführen des Einschiebelementes in das Aufnahmeelement werden die Vorsprünge von der Drehachse weg gegen die Rückstellkraft durch den erweiternden Bereich ausgelenkt. Nach Passieren des erweiternden Bereiches werden die Vorsprünge wieder aufgrund der Rückstellkräfte in Richtung der Drehachse zurückgelenkt. Bei dieser Ausführungsform erweitert und vermindert sich der Bereich in radialer Hinsicht von der Drehachse des Einschiebelementes aus gesehen.In one embodiment, at least one projection deflectable against a restoring force in a radial direction away from the axis of rotation may be integrally formed on the receiving element and the corresponding recess and the first expanding and subsequently decreasing region may be provided in the insertion element. When inserting the insertion element into the receiving element, the projections are deflected away from the axis of rotation against the restoring force by the widening region. After passing through the widening region, the projections are again deflected back in the direction of the axis of rotation due to the restoring forces. In this embodiment, the range expands and decreases seen in radial respect from the axis of rotation of the insertion element.

Dabei kann das Aufnahmeelement endseitig in etwa parallel zur Drehachse des Aufnahmeelements verlaufende Schlitze unter Bildung von armförmigen Aufnahmeelementabschnitten aufweisen. Bei einer solchen Ausbildung können die Rückstellkräfte zusätzlich oder auch ausschließlich durch die armförmig ausgebildeten Aufnahmeelementabschnitte selbst erzeugt werden. Beim Einschieben des Einschiebelementes werden teilweise die Aufnahmeelementabschnitte zusammen mit den Vorsprüngen von der Drehachse weg ausgelenkt, so dass das Einschiebelement eingeführt werden kann. Beim übermäßigen Anstieg des Torsionsmoments, z. B. beim Überfahren von Schwellen oder beim Blockieren des gesamten Bürstenkörpers, können sich die armförmigen Aufnahmeelementabschnitte in sich leicht verdrehen und federn somit wie eine Verdrehfeder die harten Schläge ab. Die Vorsprünge wandern hierbei nicht vollständig aus den Aussparungen heraus, um ein Zerstören der Verbindung zu vermeiden.In this case, the receiving element may have at its end approximately parallel to the axis of rotation of the receiving element extending slots to form arm-shaped receiving element sections. With such a design, the restoring forces can be generated additionally or exclusively by the arm-shaped receiving element sections themselves. When inserting the push-in element, the receiving element sections are partially deflected together with the projections away from the axis of rotation, so that the push-in element can be inserted. When excessive increase of the torsional moment, z. B. when driving over thresholds or blocking the entire brush body, the arm-shaped receiving element sections can twist easily and thus feathers like a torsion spring from the hard strokes. The projections do not migrate completely out of the recesses in order to avoid destroying the connection.

Zweckmäßigerweise kann jeder Aufnahmeelementabschnitt zumindest einen radialen, auf die Drehachse zuweisenden Vorsprung aufweisen.Conveniently, each receiving element section may have at least one radial projection facing the axis of rotation.

Bei einer anderen Ausführungsform kann zumindest ein gegen eine Rückstellkraft in einer radialen Richtung zur Drehachse hin auslenkbarer Vorsprung an dem Einschiebelement angeformt sein und die entsprechende Aussparung und der(die) sich zuerst erweiternde(n) und sich anschließend vermindernde(n) Bereich(e) innenseitig in dem Aufnahmeelement vorgesehen sein. Der(Die) erweiternde(n) Bereich(e) ist(sind) dabei so an dem Aufnahmeelement angeformt, dass er(sie) ebenfalls radial nach innen weist(weisen). Bei einer solchen Ausführungsform werden die Vorsprünge gegen die Rückstellkräfte beim Einführen durch den auf der Innenseite des Aufnahmeelementes angeformten erweiternden Bereich auf die Drehachse hin ausgelenkt. Auch hier können die Rückstellkräfte zusätzlich oder ausschließlich durch die armförmigen Einschiebelementabschnitte selbst erzeugt werden. Bei dieser Ausführungsform erweitert und vermindert sich der Bereich in radialer Hinsicht von der äußeren Mantelfläche des Aufnahmeelementes aus gesehen.In another embodiment, at least one projection deflectable against a restoring force in a radial direction to the axis of rotation may be integrally formed on the insertion element and the corresponding recess and the region (s) which widens first and then subsequently decreases (e). be provided on the inside in the receiving element. The widening area (s) is (are) formed on the receiving element in such a way that he (she) also points radially inward. In such an embodiment, the projections are deflected against the restoring forces during insertion through the integrally formed on the inside of the receiving element widening area on the axis of rotation. Again, the restoring forces can be generated in addition or exclusively by the arm-shaped Einschiebelementabschnitte itself. In this embodiment, the area expands and decreases in radial respect as seen from the outer surface of the receiving element.

Dabei kann das Einschiebelement endseitig in etwa parallel zur Drehachse des Einschiebelementes verlaufende Schlitze unter Bildung von armförmigen Einschiebelementabschnitten aufweisen. Beim Einschieben werden die armförmigen Einschiebelementabschnitte zusammen mit den Vorsprüngen aus ihrer Normalposition gegen die Rückstellkräfte in Richtung zur Drehachse ausgelenkt. Beim übermäßigen Anstieg des Torsionsmoments, z. B. beim überfahren von Schwellen oder beim Blockieren des gesamten Bürstenkörpers, können sich die armförmigen Einschiebelementabschnitte in sich leicht verdrehen und federn somit wie eine Verdrehfeder die harten Schläge ab. Die Vorsprünge wandern hierbei nicht vollständig aus den Aussparungen heraus, um ein Zerstören der Verbindung zu vermeiden.In this case, the insertion element may have end-side slots extending approximately parallel to the axis of rotation of the insertion element, forming arm-shaped insertion element sections. When inserting the arm-shaped Einschiebelementabschnitte are deflected together with the projections from its normal position against the restoring forces in the direction of the axis of rotation. When excessive increase of the torsional moment, z. As when driving over thresholds or blocking the entire brush body, the arm-shaped Einschiebelementabschnitte can easily twist in and thus feathers like a twist spring from the hard shocks. The projections do not migrate completely out of the recesses in order to avoid destroying the connection.

Dabei kann jeder Einschiebelementabschnitt zumindest einen radialen, von der Drehachse wegweisenden Vorsprung aufweisen.Each Einschiebelementabschnitt can have at least one radial, pointing away from the axis of rotation projection.

Bei einer bevorzugten Ausführungsform der Erfindung kann der sich zuerst erweiternde und sich anschließend vermindernde Bereich umlaufend ausgebildet sein. Sofern der erweiternde Bereich an dem Einschiebelement angeformt ist, befindet sich dieser auf der Außenseite des Einschiebelementes. Bei der umgekehrten Anordnung, bei der die gegen eine Rückstellkraft in einer radialen Richtung zur Drehachse hin auslenkbaren Vorsprünge an dem Einschiebelement vorgesehen sind, ist der erweiternde Bereich innenseitig im Bereich der Aufnahmeöffnung des Aufnahmeelementes angeformt. In diesem Fall bietet sich an, dass mehrere Vorsprünge vorgesehen sind, die den erweiternden Bereich hintergreifen. Je nach Anwendungsfall können den einzelnen Vorsprünge unterschiedlich starke Rückstellkräfte zukommen. Dies ist insbesondere bei Reinigungsmaschinen mit Tellerbesen von Bedeutung, die nur einseitig gelagert sind. Zumindest einige Vorsprünge müssen höhere Rückstellkräfte haben, um ein sicheres Fixieren des Tellerbesens zu gewährleisten und ein unbeabsichtigtes Lösen infolge von Stößen während der Transportfahrt oder durch Anfahren gegen ein Hindernis zu verhindern. Es ist aber auch durchaus möglich, dass der erweiternde Bereich lediglich im Bereich eines Vorsprungs vorgesehen ist.In a preferred embodiment of the invention, the first expanding and then decreasing area may be formed circumferentially. If the widening area is formed on the insertion element, this is located on the outside of the push-in element. In the reverse arrangement in which the deflectable against a restoring force in a radial direction to the axis of rotation projections are provided on the insertion element, the widening portion is formed on the inside in the region of the receiving opening of the receiving element. In this case, it is advisable that a plurality of projections are provided, which engage behind the widening area. Depending on the application, the individual projections may have varying degrees of restoring forces. This is particularly important in cleaning machines with disc brooms, which are stored only on one side. At least some projections must have higher restoring forces to ensure a secure fixing of the plate plate and to prevent accidental release due to shocks during transport or by approaching an obstacle. But it is also quite possible that the widening area is provided only in the region of a projection.

Damit jeder Vorsprung beim Einführen des Bürstenkörpers sukzessive gegen eine Rückstellkraft ausgelenkt werden kann, bietet sich an, wenn der sich zuerst erweiternde und sich anschließend vermindernde Bereich auf der dem freien Ende zugewandten Seite in Einschubrichtung gesehen konisch, insbesondere in einem geringen Winkel zur Drehachse, verläuft, d.h. je nach Ausführungsform ab- bzw. zunimmt. Bei einem am Einschiebelement angeformten erweiternden Bereich nimmt der Durchmesser des erweiternden Bereichs auf der dem freien Ende zugewandten Seite in Einschubrichtung gesehen zu. Bei der umgekehrten Anordnung, bei der die gegen eine Rückstellkraft in einer radialen Richtung zur Drehachse hin auslenkbaren Vorsprünge an dem Einschiebelement vorgesehen sind, nimmt der Abstand zwisehen der Drehachse und dem erweiternden Bereich auf der dem freien Ende zugewandten Seite in Einschubrichtung gesehen ab. Hierdurch verringert sich der Durchmesser der Öffnung des Aufnahmeelementes auf der dem freien Ende zugewandten Seite in Einschubrichtung gesehen.So that each projection during insertion of the brush body can be successively deflected against a restoring force, it is advisable if the first expanding and then decreasing area on the free end facing side in the insertion direction conical, in particular at a small angle to the axis of rotation runs ie decreases or increases depending on the embodiment. With a widening element formed on the widening area, the diameter of the widening area on the side facing the free end increases in the direction of insertion. In the reverse arrangement, in which the projections deflectable against a restoring force in a radial direction to the axis of rotation are provided on the insertion element, the distance increases the axis of rotation and the widening region on the free end facing side in the insertion direction from. As a result, the diameter of the opening of the receiving element on the free end facing side decreases in the insertion direction.

Ebenfalls zweckmäßig ist, wenn der sich zuerst erweiternde und sich anschließend vermindernde Bereich auf der dem freien Ende abgewandten Seite in Einschubrichtung gesehen konisch, insbesondere kegelstumpfartig, verjüngend bzw. erweiternd ausgebildet ist. Es liegt auf der Hand, dass bei einem am Einschiebelement angeformten erweiternden Bereich der Durchmesser des erweiternden Bereichs auf der dem freien Ende abgewandten Seite im Einschubrichtung gesehen abnimmt. Bei der umgekehrten Anordnung, bei der die gegen eine Rückstellkraft in einer radialen Richtung zur Drehachse hin auslenkbaren Vorsprünge an dem Einschiebelement vorgesehen sind, ist der erweiternde Bereich innenseitig an dem Aufnahmeelement angeformt, so dass auf der dem freien Ende abgewandten Seite der Abstand zwischen Drehachse und dem Bereich in Einschubrichtung gesehen zunimmt. Dies erweist sich als vorteilhaft, da einerseits beim Einschieben nach Passieren des erweiternden Bereiches durch jeden Vorsprung die Vorsprünge wieder sukzessiv aufgrund ihrer Rückstellkräfte in die ursprüngliche Position zurückschwenken. Andererseits ermöglicht diese Ausbildung einen leichten Wechsel des Bürstenkörpers, da die Vorsprünge beim Herausziehen automatisch wieder sukzessiv gegen ihre Rückstellkraft ausgelenkt werden.It is also expedient if the region which widens first and then subsequently decreases conically on the side facing away from the free end in the direction of insertion, in particular in the form of a truncated cone, is tapered or widening. It is obvious that when the expansion area is formed on the insertion element, the diameter of the widening area on the side facing away from the free end decreases in the direction of insertion. In the reverse arrangement, in which are provided against a restoring force in a radial direction to the axis of rotation deflectable projections on the insertion, the widening portion is formed on the inside of the receiving element, so that on the side facing away from the free end of the distance between the rotation axis and the range increases in the direction of insertion increases. This proves to be advantageous because, on the one hand, upon insertion after passing through the widening region by each projection, the projections pivot back again successively due to their restoring forces into the original position. On the other hand, this design allows a slight change of the brush body, since the projections are automatically deflected again successively against their restoring force when pulling out.

Zum besseren Einführen des Einschiebelementes in das Aufnahmeelement kann das freie Ende des Einschiebelementes sich verjüngend, vorzugsweise kegelstumpfartig verjüngend, ausgebildet sein.For better insertion of the insertion element in the receiving element, the free end of the insertion element can be tapered, preferably tapered tapered, be formed.

Als vorteilhaft erweist sich, wenn zumindest eine Ausnehmung sich eingangsseitig von einem breiteren Einführbereich auf die Ausnehmungsbreite verjüngt. Hierdurch wird die Selbstzentrierung unterstützt, da jeder Vorsprung einfacher in den korrespondierenden Schlitz eingeführt werden kann., Es sind aber auch andere Ausführungsformen zur Selbstzentrierung denkbar.It proves to be advantageous if at least one recess tapers on the input side from a wider insertion region to the recess width. As a result, the self-centering is supported, since each projection can be easily inserted into the corresponding slot. However, other embodiments for self-centering are also conceivable.

Das Einschiebelement oder das Aufnahmeelement kann endseitig ein in etwa zylinderförmiges und umfangsseitig wenigstens eine Erhebung aufweisendes Mitnehmerteil aufweisen, so dass die erfindungsgemäße Vorrichtung als Adapter verwendet werden kann. Das Mitnehmerteil ist dabei so ausgestaltet, dass herkömmliche Bürstenkörper auch in einer mit der erfindungsgemäßen Vorrichtung ausgestatteten Reinigungsmaschine verwendet werden können. Das Mitnehmerteil kann beispielsweise konisch zulaufend ausgebildet sein und außenseitig Zähne als Erhebungen aufweisen. Der herkömmliche Bürstenkörper verfügt dabei über eine entsprechende endseitige Ausnehmung, in die das Mitnehmerteil eingeführt werden kann. Auch kann das Mitnehmerteil entweder an dem Einschiebelement oder an dem Aufnahmeelement angeformt bzw. z. B. mittels Schrauben fixiert sein. Andere Verbindungsarten sind selbstverständlich möglich.The push-in element or the receiving element may have an approximately cylindrical and circumferentially at least one elevation exhibiting driver part, so that the device according to the invention can be used as an adapter. The driver part is designed so that conventional brush body can also be used in a cleaning machine equipped with the device according to the invention. The driver member may be formed, for example, tapered and outside teeth have as surveys. The conventional brush body has a corresponding end-side recess into which the driver part can be inserted. Also, the driver part can be formed either on the insertion element or on the receiving element or z. B. be fixed by means of screws. Other types of connection are of course possible.

Die Erfindung betrifft ferner eine Reinigungsmaschine mit zumindest einem Antrieb, vorzugsweise Elektromotor, und zumindest einem Bürstenkörper, wobei mindestens ein Bürstenkörper mittels einer erfindungsgemäßen Vorrichtung mit der Reinigungsmaschine befestigbar bzw. durch diese antreibbar ist, sofern weiterhin das Aufnahmeelement mit dem Bürstenkörper und das Einschiebelement mit der Reinigungsmaschine in verbindung ist.The invention further relates to a cleaning machine with at least one drive, preferably electric motor, and at least one brush body, wherein at least one brush body by means of a device according to the invention with the cleaning machine attachable or can be driven by this, if further the receiving element with the brush body and the insertion element with the Cleaning machine is in communication.

Dabei kann als Bürstenkörper zumindest eine um eine horizontale Achse drehende Walzenbürste bzw. eine Kehrwalze oder zumindest eine Tellerbürste bzw. ein Tellerbesen vorgesehen sein.In this case, at least one roller brush rotating about a horizontal axis or a sweeping roller or at least one disc brush or a disc brush may be provided as the brush body.

Im Folgenden werden in der Zeichnung dargestellte Ausführungsbeispiele der Erfindung erläutert. Es zeigen:

Fig. 1
eine Draufsicht auf eine Bodenreinigungsmaschine mit zwei um eine horizontale Achse rotierenden Walzenbürsten bzw. Kehrbürsten,
Fig. 2
einen Schnitt durch die erfindungsgemäße Vorrichtung im noch nicht montierten Zustand, wobei als Bürstenkörper ein Tellerbesen bzw. eine Tellerbürste vorgesehen ist,
Fig. 3
einen Schnitt durch den Gegenstand nach Fig. 3 im montierten Zustand,
Fig. 4
einen Schnitt durch eine erfindungsgemäße Vorrichtung mit einer Walzenbürste als Bürstekörper,
Fig. 5
eine Vergrößerung des Bereiches X aus Fig. 4,
Fig. 6
den Gegenstand nach Fig. 5 in einer gekippten Stellung,
Fig. 7-9
verschiedene Ansichten eines Aufnahmeelementtes,
Fig. 10-12
verschiedene Ansichten eines Einschiebelementes und
Fig. 13
den Gegenstand nach Fig. 3 mit einer umgekehrt angeordneten erfindungsgemäßen Vorrichtung.
In the following, illustrated embodiments of the invention will be explained in the drawing. Show it:
Fig. 1
a plan view of a floor cleaning machine with two rotating about a horizontal axis roller brushes or sweeping brushes,
Fig. 2
a section through the device according to the invention in the not yet assembled state, wherein a disc brush or a disc brush is provided as a brush body,
Fig. 3
a section through the article of FIG. 3 in the assembled state,
Fig. 4
a section through a device according to the invention with a roller brush as a brush body,
Fig. 5
an enlargement of the area X of FIG. 4,
Fig. 6
the article of FIG. 5 in a tilted position,
Fig. 7-9
different views of a receiving element,
Fig. 10-12
different views of a push-in element and
Fig. 13
the article of FIG. 3 with a reversely arranged device according to the invention.

In allen Figuren werden für gleiche bzw. gleichartige Bauteile übereinstimmende Bezugszeichen verwendet.In all figures the same reference numerals are used for identical or similar components.

Das in Fig. 1 dargestellte Reinigungsaggregat einer Reinigungsmaschine weist ein Gehäuse 1 auf, in dem zwei als Walzenbürsten ausgebildete Bürstenkörper 2 vorgesehen sind. Hierzu befinden sich in dem Gehäuse 1 zwei nach unten geöffnete Tunnel, auch Besenraum genannt, die hinsichtlich der Abmessungen dem betreffenden Bürstenkörper 2 angepasst sind. Jeder Tunnel ist an dem zu öffnenden zulänglichen Ende mit einem Abschlussblech 3 verschlossen. An dem Abschlussblech 3 ist ein in den Tunnel ragender Lagerstift 4 zur Lagerung des Bürstenkörpers 2 vorgesehen. Das jeweilige dem Abschlussblech 3 gegenüberliegende Ende des Tunnels weist die in den anderen Figuren im Einzelnen beschriebene erfindungsgemäße Vorrichtung auf, die über einen Antriebsübertragungsmechanismus 5, wie z. B. eine Kette mit dem zugehörigen Antrieb 6 beispielsweise mit einem Elektromotor verbunden ist. Über Anschlüsse 7 ist jeder Antrieb 6 mit dem Versorgungssystem verbunden.The cleaning unit of a cleaning machine shown in FIG. 1 has a housing 1, in which two brush bodies 2 designed as roller brushes are provided. For this purpose, located in the housing 1, two downwardly open tunnel, also called broom, which are adapted to the relevant brush body 2 in terms of dimensions. Each tunnel is closed at the accessible end to be opened with a cover plate 3. At the end plate 3, a projecting into the tunnel bearing pin 4 for supporting the brush body 2 is provided. The respective end of the tunnel opposite the end plate 3 has the device according to the invention which is described in detail in the other figures and which comprises a drive transmission mechanism 5, such as. B. a chain is connected to the associated drive 6, for example, with an electric motor. About connections 7 each drive 6 is connected to the supply system.

Über die dargestellte Halterung 8 ist das Reinigungsaggregat mit einer nicht dargestellten Führungsvorrichtung an der Reinigungsmaschine verbunden.About the holder 8 shown, the cleaning unit is connected to a guide device, not shown, on the cleaning machine.

Fig. 2 zeigt die Vorrichtung, mit einem Einschiebelement 9, das mit einer maschinenseitigen Welle 10 verbunden ist. Wie deutlich zu erkennen ist, weist das Einschiebelement 9 umfangsseitig Aussparungen 11 auf, wobei diese Aussparungen 11 in Einschubrichtung 12 gesehen ein umlaufend zuerst erweiternder und sich anschließend vermindernder Bereich 13 vorgelagert ist. Im Folgenden wird der sich zuerst erweiternde und sich anschließend vermindernde Bereich 13 lediglich mit erweiternder Bereich 13 bezeichnet.FIG. 2 shows the device with a push-in element 9, which is connected to a machine-side shaft 10. As can be clearly seen, the insertion element 9 has recesses 11 on the circumference, these recesses 11, viewed in the direction of insertion 12, being preceded by an area 13 which extends first circumferentially and then decreases. Hereinafter, the first expanding and subsequently decreasing region 13 will be referred to as the expanding region 13 only.

Der als Tellerbürste oder Tellerbesen ausgebildete Bürstenkörper 2 weist das entsprechende Aufnahmeelement 14 auf, das armförmige Aufnahmeelementabschnitte 15 mit in Richtung zur Drehachse 16 weisenden Vorsprünge 17 aufweist. Beim Montieren des Bürstenkörpers 2 auf der Welle 10 wird das Aufnahmeelement 14 in Einschubrichtung 12 auf das Einschiebelement 9 geschoben, so dass die Vorsprünge 17 und teilweise die Aufnahmeelementabschnitte 15 aufgrund des umlaufenden erweiternden Bereichs 13 in Richtung der Pfeile 18 von der Drehachse 16 weg gegen die Rückstellkraft ausgelenkt und insoweit gespreizt werden.The trained as a disc brush or disc brush brush body 2 has the corresponding receiving element 14, the arm-shaped receiving element sections 15 having pointing in the direction of the axis of rotation 16 projections 17. When mounting the brush body 2 on the shaft 10, the receiving element 14 is pushed in the direction of insertion 12 on the insertion element 9, so that the projections 17 and partially the receiving element sections 15 due to the circumferential widening portion 13 in the direction of arrows 18 away from the axis of rotation 16 against the Restoring force deflected and expanded in this respect.

Sobald das Aufnahmeelement 14 weit genug auf das Einschiebelement 9 aufgeschoben ist, verjüngt sich der erweiternde Bereich 13 wieder, so dass die Vorsprünge 17 aufgrund der Rückstellkräfte entgegen den Pfeilen 18 zurückgelenkt werden und vollständig in die entsprechenden Aussparungen 11 eingreifen. Hierdurch wird der Bürstenkörper 2 sicher vor einem selbständigen Lösen an der Welle 10 fixiert. In diesem Zustand ist die formschlüssige Verbindung zur Kraftübertragung hergestellt; gleichzeitig wird in diesem Anwendungsbeispiel die axiale Arretierung sichergestellt.As soon as the receiving element 14 is pushed far enough onto the insertion element 9, the widening region 13 tapers again, so that the projections 17 due the restoring forces against the arrows 18 are deflected back and fully engage in the corresponding recesses 11. As a result, the brush body 2 is securely fixed to a self-releasing on the shaft 10. In this state, the positive connection is made for power transmission; At the same time, the axial locking is ensured in this application example.

Der erweiternde Bereich 13 nimmt dabei einerseits die radialen Kräfte auf, die von dem zu reinigenden Untergrund auf den Bürstenkörper 2 ausgeübt werden. Gleichzeitig gewährleistet der erweiternde Bereich 13 eine hinreichenden Rundlauf des Bürstenkörpers 2 während des Betriebes, da sich das Aufnahmeelement 14 über seine innere Umfangsfläche auf dem erweiternden Bereich 13 abstützt und gleichwohl soviel Spiel zwischen dem Einschiebelement 9 und der inneren Umfangsfläche des Aufnahmeelementes 14 verbleibt, dass ein Verschwenken des Bürstenkörpers 2, wie er z. B. in Fig. 6 dargestellt ist, möglich ist.The widening region 13 absorbs on the one hand the radial forces which are exerted on the brush body 2 by the substrate to be cleaned. At the same time ensures the widening region 13 a sufficient concentricity of the brush body 2 during operation, since the receiving element 14 is supported on its inner peripheral surface on the widening portion 13 and still so much play between the insertion element 9 and the inner peripheral surface of the receiving element 14 remains that a Pivoting of the brush body 2, as he z. B. is shown in Fig. 6, is possible.

Andererseits gewährleistet der erweiternde Bereich 13 ein Verkippen des Bürstenkörpers 2 in der erfindungsgemäßen Vorrichtung, wie im Einzelnen in Fig. 6 gezeigt ist. Ein derartiges Verkippen kann bei der Montage auftreten, wenn das Abschlussblech 3 noch nicht montiert ist. Aufgrund des Verkippens wird eine Beschädigung der erfindungsgemäßen Vorrichtung vermieden.On the other hand, the expanding portion 13 ensures tilting of the brush body 2 in the device according to the invention, as shown in detail in FIG. Such tilting can occur during assembly when the end plate 3 is not yet mounted. Due to the tilting damage to the device according to the invention is avoided.

Wie aus den Fig. 2 und 3 ersichtlich, weist die Welle 10 im Bereich des Einschiebelementes 9 eine Nut 19 auf, in die eine im Wesentlichen rechteckförmig ausgebildete Feder 20 teilweise eingreift und so eine formschlüssige Verbindung zwischen der Welle 10 und dem Einschiebelement 9 herstellt. Um ein Lösen des Einschiebelementes 9 von der Welle 10 zu verhindern, ist das Einschiebelement 9 mittels eines Sicherungsringes 21 gesichert.As can be seen from FIGS. 2 and 3, the shaft 10 in the region of the insertion element 9 has a groove 19 into which a substantially rectangular-shaped spring 20 partially engages and thus produces a positive connection between the shaft 10 and the insertion element 9. In order to prevent the insertion element 9 from being released from the shaft 10, the insertion element 9 is secured by means of a securing ring 21.

In Fig. 4 ist ein Schnitt durch einen als Walzenbürste oder Kehrwalze ausgebildeten Bürstenkörper 2 dargestellt. Wie insbesondere aus Fig. 5 hervorgeht, ist in dem dem nicht dargestellten Abschlussblech 3 gegenüberliegenden Ende des Bürstenkörpers 2 das Aufnahmeelement 14 vorgesehen. Fixiert wird das Aufnahmeelement 14 in dem Inneren des Bürstenkörpers 2 durch einen oder mehrere Sicherungsstift(e) 22. Es sind aber auch andere Sicherungseinrichtungen denkbar. So kann beispielsweise das Aufnahmeelement 14 direkt in den Bürstenkörper 2 eingespritzt sein.FIG. 4 shows a section through a brush body 2 embodied as a roller brush or sweeping roller. As can be seen in particular from FIG. 5, the receiving element 14 is provided in the end plate of the brush body 2, which is opposite the end plate 3, not shown. The receiving element 14 is fixed in the interior of the brush body 2 by one or more securing pin (s) 22. However, other securing devices are also conceivable. For example, the receiving element 14 may be injected directly into the brush body 2.

Das Einschiebelement 9 seinerseits weist endseitig eine Welle 23 auf, auf der wiederum endseitig vorzugsweise eine Riemenscheibe 24 angeflanscht ist. Über einen nicht dargestellten Riemen wird die Riemenscheibe 24 mit dem betreffenden Antrieb 6 verbunden. Das Gehäuse 1 weist im Bereich der Welle 23 eine entsprechende Ausnehmung auf, in der zumindest ein Lager 25 für die Welle 23 eingesetzt ist.The insertion element 9 in turn has at its end a shaft 23 on which in turn preferably a pulley 24 is flanged end. Via a belt, not shown, the pulley 24 is connected to the relevant drive 6. The housing 1 has in the region of the shaft 23 a corresponding recess in which at least one bearing 25 is used for the shaft 23.

Wie insbesondere aus Fig. 5 hervorgeht, ist das freie Ende 26 des Einschiebelementes 9 kegelstumpfartig ausgebildet, so dass das Einschiebelement 9 leicht in das Aufnahmeelement 14 eingeführt werden kann. Dies erweist sich insbesondere bei der Montage von sehr langen als Walzenbürsten ausgebildeten Bürstenkörpern 2 als besonders vorteilhaft. Die dem freien Ende 26 zugewandte Seite 27 des erweiternden Bereiches 13 nimmt dabei konisch, in einem geringen Winkel zur Drehachse 16 des Einschiebelementes 9, zu, so dass die Vorsprünge 17 beim Einschieben sukzessive gegen die Rückstellkraft von der Drehachse 16 weg ausgelenkt werden.As is apparent in particular from FIG. 5, the free end 26 of the insertion element 9 is frustoconical, so that the insertion element 9 can be easily inserted into the receiving element 14. This proves to be particularly advantageous when assembling very long brush bodies 2 designed as roller brushes. The free end 26 facing side 27 of the widening portion 13 increases conically, at a slight angle to the axis of rotation 16 of the insertion element 9, to, so that the projections 17 when inserted successively against the restoring force of the rotation axis 16 are deflected away.

Ebenfalls ist die dem freien Ende 26 abgewandte Seite 28 des erweiternden Bereichs 13 kegelstumpfartig verjüngend ausgebildet, damit die Vorsprünge 17 - sofern das Einschiebelement 9 hinreichend in das Aufnahmeelement 14 eingeschoben ist - infolge der Rückstellkräfte allmählich zurückgestellt werden. Bei der Demontage des Bürstenkörpers 2 werden die Vorsprünge 17 wieder durch die kegelstumpfartige verjüngende Ausbildung der Seite 28 des erweiternden Bereichs 13 gegen ihre Rückstellkräfte in Richtung der Pfeile 18 ausgelenkt, so dass der Bürstenkörper 2 so aus der erfindungsgemäßen Vorrichtung gezogen werden kann.Also, the side facing away from the free end 26 side 28 of the widening portion 13 is tapered conically, so that the projections 17 - if the insert member 9 is sufficiently inserted into the receiving element 14 - are gradually reset due to the restoring forces. When disassembling the brush body 2, the projections 17 are again deflected by the frustoconical tapered design of the side 28 of the widening portion 13 against their restoring forces in the direction of arrows 18, so that the brush body 2 can be pulled out of the device according to the invention.

Das Einschiebelement 9 weist beidseits des erweiternden Bereichs 13 einen geringeren Durchmesser als im Bereich des erweiternden Bereichs 13 auf, so dass das Einschiebelement 9 im Bereich des erweiternden Bereichs 13 wulstartig ausgebildet ist.The insertion element 9 has on both sides of the widening region 13 a smaller diameter than in the region of the widening region 13, so that the insertion element 9 is bead-like in the region of the widening region 13.

Hierdurch nimmt der erweiternde Bereich 13 nicht nur radiale Kräfte auf, die von dem zu reinigenden Untergrund auf den Bürstenkörper 2 ausgeübt werden. Vielmehr ermöglicht der erweiternde Bereich 13 in Verbindung mit der Auslenkbarkeit der Vorsprünge 17 bzw. der Aufnahmeelementabschnitte 15 - wie in Fig. 6 dargestellt - ein Verkippen des Bürstenkörpers 2 in der erfindungsgemäßen Vorrichtung. Die in dieser Figur oben dargestellten Aufnahmeelementabschnitte 15 liegen dabei nicht mehr vollständig an dem Einschiebelement 9 an. Vielmehr greifen lediglich die Vorsprünge 17 in die betreffenden Aussparungen 11 ein. Die in dieser Figur unten dargestellte Aufnahmeelementabschnitte 15 liegen jedoch nahezu vollständig an dem Einschiebelement 9 an. Ein derartiges Verkippen kann z. B. bei der Montage auftreten, wenn das Abschlussblech 3 noch nicht montiert ist. Aufgrund der Möglichkeit des Verkippens des Bürstenkörpers 2 wird eine Beschädigung der erfindungsgemäßen Vorrichtung bzw. des Bürstenkörpers 2 vermieden.As a result, the widening region 13 not only absorbs radial forces which are exerted on the brush body 2 by the substrate to be cleaned. Rather, the expanding region 13 in conjunction with the deflectability of the projections 17 and the receiving element sections 15 - as shown in Fig. 6 - allows a tilting of the brush body 2 in the device according to the invention. The receiving element sections 15 shown at the top in this figure no longer rest completely against the insertion element 9. Rather, only the projections 17 engage in the respective recesses 11. However, the receiving element sections 15 shown below in this figure are almost completely on the insertion element 9 on. Such tilting can z. B. occur during assembly when the end plate 3 is not mounted. Due to the possibility of tilting of the brush body 2, damage to the device or the brush body 2 according to the invention is avoided.

In den Fig. 7 bis 9 ist noch einmal detailliert das Aufnahmeelement 14 in verschiedenen Darstellungen abgebildet. Wie deutlich aus diesen Figuren hervorgeht, weist das Aufnahmeelement 14 die armförmigen Aufnahmeelementabschnitte 15 auf. An jedem Aufnahmeelementabschnitt 15 ist ein auf die in diesen Figuren nicht dargestellte Drehachse 16 weisender Vorsprung 17 abgebildet. In dem dargestellten Ausführungsbeispiel weisen die Vorsprünge 17 eine in etwa rechteckige Form auf.In FIGS. 7 to 9, the receiving element 14 is shown again in detail in various representations. As clearly shown in these figures, the receiving element 14, the arm-shaped receiving element sections 15. At each receiving element section 15, a projection 17 pointing towards the axis of rotation 16, not shown in these figures, is shown. In the illustrated embodiment, the projections 17 have an approximately rectangular shape.

Wie in Fig. 9 angedeutet, ist jeder Vorsprung 17 an der dem freien Ende des Aufnahmeelementes 14 gegenüberliegenden Kante abgeschrägt, damit das nicht dargestellte Einschiebelement 9 einfacher aus dem Aufnahmeelement 14 bei einem Wechsel des Bürstenkörpers 2 hinausgezogen werden kann. Zwischen zwei benachbarten Aufnahmeelementabschnitten 15 ist dabei je ein Schlitz 29 vorgesehen. Bei der Montage, d.h. beim Einschieben des Einschiebelementes 9 in das Aufnahmeelement 14, werden die Vorsprünge 17 zusammen mit den Aufnahmeelementabschnitten 15 gegen die Rückstellkraft ausgelenkt.As indicated in Fig. 9, each projection 17 is chamfered at the free end of the receiving element 14 opposite edge so that the insertion element 9, not shown, 9 can be easily pulled out of the receiving element 14 in a change of the brush body 2. Between two adjacent receiving element sections 15, a slot 29 is provided in each case. During assembly, i. when inserting the insertion element 9 in the receiving element 14, the projections 17 are deflected together with the receiving element sections 15 against the restoring force.

Die Fig. 10 bis 12 zeigen nochmals im Detail den Aufbau eines Einschiebelementes 9. Dieses weist an dem dem freien Ende 26 gegenüberliegenden Ende die Welle 10 auf, über die das Einschiebelement 9 über den nicht dargestellten Antriebsübertragungsmechanismus 5, wie z. B. eine Kette oder einen Riemen, mit dem betreffenden Antrieb 6 verbunden ist.Fig. 10 to 12 show again in detail the structure of a Einschiebelementes 9. This has at the opposite end of the free end 26, the shaft 10 through which the insert member 9 via the drive transmission mechanism 5, not shown, such. B. a chain or a belt is connected to the relevant drive 6.

Das freie Ende 26 des Einschiebelementes 9 ist kegelstumpfartig zum leichten Einführen in das Aufnahmeelement 14 ausgebildet.The free end 26 of the insertion element 9 is frustoconical for easy insertion into the receiving element 14 is formed.

In Einschubrichtung 12 gesehen vorgelagert befindet sich vor den im Wesentlichen rechteckförmig ausgebildeten Aussparungen 11 der erweiternde Bereich 13, wobei die dem Ende 26 zugewandte Seite 27 konisch, in einem kleinen Winkel zur Drehachse 16, zunimmt. Auch die dem Ende 26 abgewandte Seite 28 des erweiternden Bereichs 13 ist kegelstumpfartig ausgebildet. Hierdurch wird sowohl das Einschieben in das nicht dargestellte Aufnahmeelement 14 als auch das spätere Herausziehen des Einschiebelementes 9 erleichtert.In the insertion direction 12 seen upstream is located in front of the substantially rectangular-shaped recesses 11 of the widening region 13, wherein the end 26 facing side 27 conically, at a small angle to the axis of rotation 16, increases. The end 26 remote from the side 28 of the widening portion 13 is formed frustoconical. As a result, both the insertion into the receiving element 14, not shown, as well as the subsequent withdrawal of the insertion element 9 is facilitated.

Im Bereich des dem freien Ende 26 abgewandten Endes der Aussparung 11 sind an dem Einschiebelement 9 zwischen den benachbarten Aussparungen 11 vorstehende Abschnitte 30 vorgesehen. Diese Abschnitte 30 verhindern ein Überschieben der Vorsprünge 17 über das Einschiebelement 9 in axialer Richtung hinaus, da im montierten Zustand die Aufnahmeelementabschnitte 15 mit seitlich angeformten Vorsprüngen 31, die im Bereich der Vorsprünge 17 angeordnet sind, die Abschnitte 30 berühren. Ferner kommt den Abschnitten 30 eine Sicherungsfunktion zu, damit nicht im Betrieb plötzlich der Formschluss zwischen einem Vorsprung 17 und einer Aussparung 11 unterbrochen wird.In the region of the free end 26 facing away from the end of the recess 11 11 projecting portions 30 are provided on the insertion element 9 between the adjacent recesses. These sections 30 prevent the projections 17 from being pushed beyond the insertion element 9 in the axial direction, since in the mounted state the receiving element sections 15 with laterally formed projections 31 arranged in the region of the projections 17 touch the sections 30. Furthermore, the sections 30 have a safety function, so that the positive connection between a projection 17 and a recess 11 is not suddenly interrupted during operation.

Die Abschnitte 30 sind zusätzlich auf der dem freien Ende 26 zugewandten Seite 32 spitz zulaufend ausgebildet, so dass das Einführen der Vorsprünge 17 in die Aussparungen 11 vereinfacht wird und so nahezu eine Selbstfindung bzw. Selbstzentrierung erzielt wird.The sections 30 are additionally formed tapering on the free end 26 facing side 32, so that the insertion of the projections 17 in the recesses 11 is simplified and so almost a self-discovery or self-centering is achieved.

Die Höhe der Abschnitte 30 ist dabei so gewählt, dass im eingeschobenen Zustand die Abschnitte 30 mit den Vorsprüngen 17 eine im Wesentlichen plane Umfangsfläche darstellen.The height of the sections 30 is selected such that in the inserted state the sections 30 with the projections 17 represent a substantially planar peripheral surface.

Wie insbesondere aus den Fig. 10 und 12 hervorgeht, kann aber auch auf die Abschnitte 30 als axialer Anschlag verzichtet werden. Für diesen Fall könnte z. B. das Einschiebelement 9 im eingeschobenen Zustand mit dem freien Ende 26 das Aufnahmeelement 14 in Berührung sein, so dass ein zu weites Einschieben verhindert wird.As can be seen in particular from FIGS. 10 and 12, however, the sections 30 can also be dispensed with as an axial stop. For this case, z. B. the insertion element 9 in the inserted state with the free end 26, the receiving element 14 may be in contact, so that too far insertion is prevented.

Fig. 13 zeigt den Gegenstand nach Fig. 3, wobei hier die umgekehrte Anordnung der erfindungsgemäßen Vorrichtung dargestellt ist. Hierbei ist der erweiternde Bereich 13 innenseitig an dem Aufnahmeelement 14 angeformt. Deutlich erkennbar ist, dass auch bei dieser Ausführungsform der erweiternde Bereich 13 - von der äußeren Mantelfläche des Aufnahmeelementes 14 und in Einschubrichtung 12 gesehen - sich in radialer Richtung zunächst erweitert und sich anschließend wieder vermindert.Fig. 13 shows the object according to Fig. 3, wherein here the reverse arrangement of the device according to the invention is shown. In this case, the widening region 13 is integrally formed on the receiving element 14 on the inside. It can clearly be seen that in this embodiment as well, the widening region 13 - as seen from the outer surface of the receiving element 14 and in the direction of insertion 12 - first widened in the radial direction and then decreases again.

Das Einschiebelement 9 weist Einschiebelementabschnitte 33 auf, wobei jeweils beidseits eines Einschiebelementabschnittes 33 je ein in etwa parallel zur Drehachse 16 verlaufender Schlitz 34 vorgesehen ist. Auf der dem Aufnahmeelement 14 zugewandten Seite der Einschiebelementabschnitte 33 sind die Vorsprünge 17 so angeformt, dass die Vorsprünge 17 im Betriebszustand in die entsprechenden Aussparungen 11 eingreifen.The insertion element 9 has Einschiebelementabschnitte 33, wherein in each case on both sides of a Einschiebelementabschnittes 33 each extending approximately parallel to the axis of rotation 16 slot 34 is provided. On the receiving element 14 side facing the Einschiebelementabschnitte 33, the projections 17 are formed so that the projections 17 engage in the operating state in the corresponding recesses 11.

Zum Wechsel des Bürstenkörpers 2 werden die Einschiebelementabschnitte 33 gegen ihre Rückstellkräfte in Richtung der Pfeile 35 verlagert, so dass die Vorsprünge 17 aus den Aussparungen 11 heraus wegbewegt werden und so der Bürstenkörper 2 entgegen der Einschubrichtung 12 abgezogen werden kann.To change the brush body 2, the Einschiebelementabschnitte 33 are shifted against their restoring forces in the direction of the arrows 35 so that the projections 17 are moved away from the recesses 11 out and so the brush body 2 can be withdrawn against the insertion direction 12.

Wie aus dieser Figur hervorgeht, läuft das freie Ende 26 in Richtung der Aussparungen 11 kegelstumpfartig konisch zu, um das Einführen des Einschiebelementes 9 in das Aufnahmeelement 14 zu vereinfachen. Die dem freien Ende 26 zugewandte Seite 27 des erweiternden Bereichs 13 läuft dabei ebenfalls konisch, in einem geringen Winkel zur Drehachse 16 des Einschiebelementes 9 auf die Drehachse 16 zu, so dass die Einschiebelementabschnitte 33 sukzessive gegen ihre Rückstellkräfte beim Einschieben in Richtung der Pfeile 35 verschwenkt werden.As can be seen from this figure, the free end 26 in the direction of the recesses 11 tapered conically to simplify the insertion of the Einschiebelementes 9 in the receiving element 14. The free end 26 facing side 27 of the widening portion 13 also runs conically, at a small angle to the axis of rotation 16 of the insertion 9 on the axis of rotation 16, so that the Einschiebelementabschnitte 33 successively pivoted against their restoring forces when inserted in the direction of the arrows 35 become.

Auch ist die dem freien Ende 26 abgewandte Seite 28 des erweiternden Bereichs 13 derart konisch ausgebildet, dass beim Abziehen des Bürstenkörpers 2 die Einschiebelementabschnitte 33 gegen ihre Rückstellkräfte in Richtung der Pfeile 35 ausgelenkt werden.Also, the side facing away from the free end 26 28 of the widening portion 13 is formed conically such that upon removal of the brush body 2, the Einschiebelementabschnitte 33 are deflected against their restoring forces in the direction of the arrows 35.

Claims (16)

  1. Apparatus for the securement and for the driving of a brush body (2) of a cleaning machine, more especially of a floor-cleaning machine, said apparatus having a substantially hollow-cylindrical receiving element (14) and a push-in element (9) which can be pushed therein, the form-fitting transmission of force being ensured by at least one projection (17) and at least one corresponding recess (11), characterised in that either the receiving element (14) is in connection with the brush body (2) and the push-in clement (9) is in connection with the cleaning machine or, however, the receiving element (14) is in connection with the cleaning machine and the push-in element (9) is in connection with the brush body (2), and in that at least one projection (17) is deflectable, in opposition to a restoring force, in the radial direction relative to the rotational axis (16)
    and at least one region (13) is provided, which initially widens in the radial direction and subsequently narrows, and which is mounted in front of a recess (11), corresponding to a deflectable projection (17), when viewed with respect to the insertion direction (12), so that the widening region (13) prevents the brush body (2) from being able to become detached again automatically, since the restoring forces must be applied again in order to change the brush body (2), and in that the recesses (11) are in the form of cutaway portions which extend parallel to the rotational axis (16).
  2. Apparatus according to claim 1, characterised in that at least one projection (17), which is deflectable away from the rotational axis (16) in opposition to a restoring force in a radial direction, is provided on the inside on the receiving element (14), and in that the corresponding recess (11) and the initially widening and subsequently narrowing region(s) (13) are provided in the push-in element (9).
  3. Apparatus according to claim 2, characterised in that the receiving element (14) includes, in the end face, slots (29) which extend substantially parallel to the rotational axis of the receiving element (14) so as to form arm-shaped receiving element portions (15).
  4. Apparatus according to claim 3, characterised in that each receiving element portion (15) includes at least one radial projection (17) which points towards the rotational axis (16).
  5. Apparatus according to claim 1, characterised in that at least one projection (17) is provided on the push-in element (9) and is deflectable towards the rotational axis (16) in opposition to a restoring force in a radial direction, and in that the corresponding recess (11) and the initially widening and subsequently narrowing region(s) (13) are provided on the inside in the receiving element (14).
  6. Apparatus according to claim 5, characterised in that the push-in element (9) includes, in the end face, slots (34) which extend substantially parallel to the rotational axis (16) of the push-in element (9) so as to form arm-shaped receiving element portions (33).
  7. Apparatus according to claim 6, characterised in that each push-in element portion (9) includes at least one radial projection (17) which points away from the rotational axis (16).
  8. Apparatus according to one of claims 1 to 7, characterised in that the initially widening and subsequently narrowing region (13) has a circumferential configuration.
  9. Apparatus according to one of claims 1 to 8, characterised in that, on the side (27) facing the free end (26) when viewed with respect to the insertion direction (12), the initially widening and subsequently narrowing region (13) extends conically, more especially at a slight angle relative to the rotational axis (16).
  10. Apparatus according to one of claims 1 to 9, characterised in that, on the side (28) remote from the free end (26) when viewed with respect to the insertion direction (12), the initially widening and subsequently narrowing region (13) has a conical configuration, more especially a frustoconically tapering or respectively widening configuration.
  11. Apparatus according to one of claims 1 to 10, characterised in that the free end (26) of the push-in element (9) has a tapering configuration, preferably a frustoconically tapering configuration.
  12. Apparatus according to one of claims 1 to 11, characterised in that at least one recess tapers, at the inlet side, from a wider introduction region to the cutaway portion width.
  13. Apparatus according to one of claims 1 to 12, characterised in that the push-in element (9) or the receiving element (14) includes, on the end face, a substantially cylindrical entrainment part which includes at least one raised portion on the circumferential side.
  14. Cleaning machine having at least one drive (6), preferably an electromotor, and at least one brush body (2), at least one brush body (2) being securable to the cleaning machine, or respectively driveable by said cleaning machine, by means of an apparatus according to one of claims 1 to 13, insofar as, furthermore, the receiving element (14) is connected to the brush body (2) and the push-in element (9) is connected to the cleaning machine.
  15. Cleaning machine according to claim 14, characterised in that at least one roller brush or sweeping roller, rotating about a horizontal axis, is provided as the brush body (2).
  16. Cleaning machine according to claim 14 or 15, characterised in that at least one plate-type brush or one plate-type broom is provided as the brush body (2).
EP02015964A 2001-07-26 2002-07-18 Apparatus for fixing a brush body to the housing of a floor cleaning device Expired - Lifetime EP1279363B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20112322U DE20112322U1 (en) 2001-07-26 2001-07-26 Device for fastening and / or driving a brush body
DE20112322U 2001-07-26

Publications (2)

Publication Number Publication Date
EP1279363A1 EP1279363A1 (en) 2003-01-29
EP1279363B1 true EP1279363B1 (en) 2006-12-27

Family

ID=7959721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015964A Expired - Lifetime EP1279363B1 (en) 2001-07-26 2002-07-18 Apparatus for fixing a brush body to the housing of a floor cleaning device

Country Status (5)

Country Link
EP (1) EP1279363B1 (en)
AT (1) ATE349177T1 (en)
DE (2) DE20112322U1 (en)
DK (1) DK1279363T3 (en)
ES (1) ES2278844T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056185A1 (en) 2007-10-30 2009-05-07 Alfred Kärcher Gmbh & Co. Kg Cleaning machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005045310B3 (en) 2005-09-16 2007-03-22 Alfred Kärcher Gmbh & Co. Kg Mobile floor cleaning machine
EP2554090B1 (en) * 2005-12-22 2014-04-09 Diversey, Inc. Squeegee assembly for a floor cleaning machine
DE102009014560A1 (en) 2009-03-16 2010-09-23 Alfred Kärcher Gmbh & Co. Kg Replaceable sweeping brush and sweeper with such sweeping brush device
WO2010105639A1 (en) 2009-03-17 2010-09-23 Alfred Kärcher Gmbh & Co. Kg Automotive roadsweeper
JP5809104B2 (en) * 2012-05-15 2015-11-10 有限会社アクセス Cleaning device connector and cleaning device
KR20160057406A (en) 2013-09-13 2016-05-23 알프레드 캐르혀 게엠베하 운트 컴파니. 카게 Cleaning tool for a floor cleaning machine and a floor cleaning machine
CN103519752A (en) * 2013-09-17 2014-01-22 盐城工业职业技术学院 Carpet washing machine convenient to assemble and disassemble

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US3401416A (en) * 1966-11-15 1968-09-17 Hoover Co Floor polisher brush attaching and drive means
DE8617171U1 (en) * 1986-06-27 1986-10-09 Hako-Werke GmbH & Co, 2060 Bad Oldesloe Mobile floor cleaning machine
US4866804A (en) * 1987-10-16 1989-09-19 Tennant Trend, Inc. Quick connect/disconnect for a surface cleaning machine
DE19522019C2 (en) * 1995-06-17 1997-04-03 Gansow Maschbau Gmbh Co Kg Motor-driven rotating plate with cleaning tools for a floor cleaning machine
DE69807051T2 (en) * 1997-03-24 2003-04-17 William Anthony Briscoe GROUND SURFACE PROCESSING UNIT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056185A1 (en) 2007-10-30 2009-05-07 Alfred Kärcher Gmbh & Co. Kg Cleaning machine
DE102007053351A1 (en) 2007-10-30 2009-05-07 Alfred Kärcher Gmbh & Co. Kg cleaner

Also Published As

Publication number Publication date
ATE349177T1 (en) 2007-01-15
DE50209058D1 (en) 2007-02-08
ES2278844T3 (en) 2007-08-16
DK1279363T3 (en) 2007-05-07
EP1279363A1 (en) 2003-01-29
DE20112322U1 (en) 2001-10-25

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