Patent Publication Number: US-2023145465-A1

Title: Brush for Vehicle Washing System

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to The Netherlands Patent Application No. 2029698 filed Nov. 9, 2021, the disclosure of which is hereby incorporated by reference in its entirety. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The invention relates to a brush for a vehicle washing system. The invention also relates to a brush body for use in such brush. The invention further relates to a brush assembly comprising an axis and multiple adjacent brushes according to the invention. The invention also relates to the use of such brush and to a method of producing a brush for a vehicle washing system. 
     Description of Related Art 
     Vehicle washing systems make use of a wide variety of bushes which are specifically designed for the intended part of the washing cycle of a vehicle. Brushes are typically designed for either washing or drying and can also be designed for a specific part of the vehicle. For example, the material of the brush elements and the dimensions of the brush can be adapted for the intended purpose. The parts of the brush which are or could be in direct contact with the vehicle are preferably substantially soft in order to avoid damage of the vehicle. Hence, also relatively hard components such as mechanical fixing means are to be avoided for this reason. Therefore, bushing elements of the brush which are to be in direct contact with the vehicle are often made of relatively soft or foamed polymers and/or textile and are typically glued to a brush body. Glue is easy to use and is suitable for use in large scale productions. A drawback of the use of glue or adhesives is that such brushes may have a limited thermal resistance and/or a limited strength. 
     SUMMARY OF THE INVENTION 
     It is a goal of the invention to provide an improved brush for vehicle washing system which takes away at least some of the known disadvantages, or to at least provide an alternative to the known brushes. 
     The invention provided thereto a brush for a vehicle washing system, comprising:
         at least one brush body comprising at least one, and preferably multiple receiving spaces;   at least one, and preferably multiple brush elements; and   at least one cover element;
 
wherein at least part of at least one brush element, and preferably of each brush element, is received within part of a(n individual) receiving space and wherein at least a further part of said brush element extends with respect to the brush body;
 
and wherein the cover element is attached to the brush body such that said cover element covers at least part of the receiving spaces, wherein at least part of the brush body and at least part of at least one cover element are made of a polymer material and wherein the brush body and the cover element are connected via plastic welding.
       

     The brush according to the present invention has several benefits over conventional brushes for vehicle washing system. Since at least one cover element covers at least part of the receiving spaces, preferably at least part of the receiving spaces in which at least part of a brush element is received, the brush elements can be assembled with or within the brush body in a relatively simple but effective manner. Due to the use of at least one polymer based brush body and at least one polymer based cover element which are mutually attached by means of plastic welding the use of glue, adhesive and/or mechanical fixation means can be omitted. The brush elements will be at least partially enclosed between the brush body and at least one cover element, in particular such that the brush elements are received within the receiving spaces in a relatively secure manner. Said enclosed configuration making use of receiving spaces further provides a relatively stable configuration for both the brush body and the brush element(s). The brush elements may provide a reinforcing function to the brush body whereas the brush elements may experience support from the embedded configuration. Hence, the brush element configuration according to the present invention wherein the brush elements are received within a receiving space of the brush body is for several reasons preferred over an attachment where brush elements are attached onto the outer surface of the brush body. The brush according to the present invention further benefits of a relatively simple configuration which can be efficiently produced, even on a large scale, due to the mutual co-action between the brush body, at least one cover element and the multiple brush elements. 
     The brush according to the present invention typically comprises at least one cover element. The at least one cover element basically has multiple functions. The at least one, or each, cover element covers at least part of the receiving spaces such that the brush elements are received within the brush body, and in particular in the receiving spaces thereof, in a secure manner. The brush body and at least one cover element are preferably attached such that they secure at least part of at least one, and preferably each brush element within a receiving space. The material choice of at least one cover element and the brush body which are both made of a polymer material enables that plastic welding can be applied to mutually connect said elements. Plastic welding is preferably performed by applying heat. The plastic welding will provide a severe and reliable connection between the brush body and at least one cover element. Plastic welding further benefits of being relatively cheap and easily applicable for large scale production. The brush according to the present invention will benefit of a relatively good thermal and/or chemical resistivity, amongst others due to the omittance of glue and/or adhesives. The attachment via plastic welding will withstand a wide range of temperature and chemical influences. 
     The at least one brush body basically forms the core of the brush as such. The brush body preferably comprises multiple receiving spaces, wherein at least one receiving space, and preferably each receiving space, is configured for receiving at least part of a brush element. It may also be said that at least one brush body is provided with multiple receiving spaces. It is conceivable that the brush body comprises individual receiving spaces wherein each receiving space is configured for receiving part of at least one brush element. The receiving spaces can be provided at a predetermined distance from another. The receiving spaces, and thus the brush elements received therein, can be circumferentially spaced over the brush body. The brush body may comprise further accommodating spaces for a further purpose, preferably not configured or suitable for receiving brush elements. It is conceivable that such accommodating spaces are not covered by the at least one cover element. 
     The brush according to the present invention typically comprises multiple brush elements. Said brush element are preferably configured to contribute to or to perform a drying, wetting and/or washing act. Preferably at least part of a distal end of the brush elements extends or protrudes with respect to the brush body. The brush according to the present invention is preferably rotatable. The brush can for example be a rotary brush. At least part of the brush elements preferably transversely and/or radially project or extend with respect to the brush body. The brush elements may for example extend or project from an outer edge and/or a circumferential edge of the brush body. The functional characteristic of the brush elements depend on the applied material and dimensions. The brush elements are typically at least partially flexible. At least part of the brush elements which extend with respect to the brush body are substantially mobile and/or movable. The brush elements could also be referred to as brushing elements. 
     The brush for a vehicle system according to the present invention may also be used as a brush for a vehicle polishing system, a vehicle buffing system and/or a vehicle drying system. The type of brush element chosen to use in the brush according to the present invention may depend on the application. 
     At least part of the brush body and at least part of at least one cover element are preferably made of a substantially similar polymer material. This may contribute to an improved plastic welding ability of the components. Hence, such configuration will positively contribute to the ease wherein a plastic welded attachments between the brush body and the at least one cover element can be obtained. It may further result in good mutual cooperation of the brush elements. In a further preferred embodiment, at least part of the brush body and/or at least part of at least one cover element are made of a polymer foam. At least part of the brush body and/or at least part of at least one cover element are preferably made of a closed cell foam. However, said polymer foam could alternatively also be an open cell foam. Polymer foam is relatively cheap and has good machinable properties. The polymer foam applied is preferably substantially dimensional stable. It is conceivable that at least part of the brush body and/or at least part of the cover element are made of a polymer material comprising and/or extruded polyethylene, and/or closed cell foam and/or open cell foam and/or polyethylene foam and/or polyurethane foam. 
     The brush elements may be manufactured from a similar polymer as the cover element and the brush body. Alternatively, the brush element may comprise a laminate comprising at least one polymer layer and at least another polymer and/or non-polymer layer. A laminated brush element may comprise a polymer layer and a textile layer, such as a non-woven textile layer and/or woven textile layer. It is also possible to use another material which is suitable to be laminated with a polymer foam, such as a non-woven microfiber textile. Said examples are preferably used for a vehicle washing system, or a vehicle buffing system or a vehicle polishing system. A brush for a vehicle drying system preferably uses laminated brush elements comprising at least one polymer foam layer and at least one drying textile layer. All brush elements may be manufactured from the same material laminate. It is also possible that several brush elements of different materials may be used in a brush according to the present invention. Hybrid brush elements may be manufactured by flame lamination. 
     In a further preferred embodiment, at least part of the receiving spaces are provided at or near an outer edge and/or a circumferential edge of the brush body. It is conceivable that at least one receiving space, and preferably each receiving space, is provided at an outer edge of the brush body such that at least part of the brush elements received in said receiving spaces, transversely and/or radially project or extend with respect to the brush body in an assembled configuration. The brush elements may for example extend or project from an outer edge and/or a circumferential edge of the brush body. It is conceivable that all brush elements are provided in a space or volume defined by a radial extension of the brush body. It is for example also conceivable that at least part of the receiving spaces extend from an outer edge of the brush body towards a centre or central region of the brush body. 
     The brush elements are typically substantially longitudinal. At least part of the receiving spaces may also be substantially longitudinal. It is for example possible that at least one receiving space, and preferably each receiving space, defines a channel and a core segment. The channel can be more narrow than the core segment. The channel may for example form a(n) (side) entrance for the brush element. The channel may also form an exit for the (distal) part of the brush element and/or may be configured to guide part of the brush element towards an outer edge of the brush body. At least part of the brush element may have a shape which is complementary to the receiving space. The brush element may for example at least partially have a complementary shape to the channel and/or core segment of the receiving space. Hence, a substantially form fitting insertion of part of the brush element in the receiving space may be established. As indicated above, at least part of the brush element may be substantially embedded within the receiving space. The core segment of the receiving space may have various shapes. It is for example conceivable that the core segment is substantially circular. However, it is also imaginable that at least part of the core segments are square, triangle and/or polygon shaped. 
     It is conceivable that that the brush comprises at least one support member which is received within at least one receiving space. The support member can for example be substantially enclosed by at least part of a brush element. It is preferred to use at least one support member which is enclosed by at least part of at least one brush element and/or which is received within at least one receiving space for several reasons. An embodiment is conceivable wherein at least one brush element comprises at least one support member which is preferably made of a polymer material. It is preferred that the at least one support member is made of a polymer material as this enables that the support member can be attached to at least one cover element and/or the brush body by means of plastic welding. The support member can be made of the material applied for the cover element(s) and/or the core body. The support member and the brush element are preferably made of different materials. It is preferred that the support member is substantially enclosed by at least part of a brush element. The support member(s) and the brush body can both be attached to at least one cover element in particular such that the brush element(s) is embedded between the brush body and the support member. This will result in a secure position for the brush element. The support member can for example be a rod. It is also conceivable that at least part of the support member is complementary to the core segment of the receiving space. The support member is preferably shaped such that its circumference is shaped complementary to and/or in the same shape as the circumference of the core segment of the receiving space. However, the circumference of the support member may be slightly smaller/shorter than the circumference of the core segment of the receiving spaces. Conceivable shapes are a circle or any polygonal shape such as squared or hexagonal. The support member may also be conical shaped. The support members preferably have sufficient surface area to enable plastic welding in an effective manner. It is for example possible that at least part of the part of the brush body which is removed to form a receiving space is applied as support member. The support member can have the same thickness as the thickness of the brush body. The support member can also extend over the entire thickness of the brush body. It is conceivable that the support member is combined with at least part of the brush element prior to insertion of the assembly of the brush element and the support member into the receiving space. The support member can for example also be an insert. Said insert can be configured to be inserted into the receiving space of the brush body. It is also possible that the support member forms part of a brush element. It is conceivable that the brush comprises multiple support members. 
     It is imaginable that at least one and preferably each receiving space extends over the entire thickness of the brush body. Such configuration of receiving spaces would be relatively easy to manufacture. The receiving spaces may for example form through holes within the brush body. The received spaces can for example be cut out of the brush body. This could for example be done by laser cutting, waterjet cutting and/or mechanical cutting. It is conceivable that the brush body comprises at least two opposing side surfaces, wherein at least one, and preferably each receiving space extends between said side surfaces. In addition to the ease of manufacturing, such embodiment also positively contributes to the ease of placement of brush elements into the receiving spaces. The brush elements can for example be placed into a receiving space via a lateral displacement. 
     In case at least one receiving space, or possibly all receiving spaces extend over the entire thickness of the brush body, it might be beneficial that the brush comprises at least two cover elements. It is conceivable that the cover elements substantially cover at least part of both side surfaces of the brush body. It is also conceivable, and preferred, that a rim or outer edge of the brush body is not covered by at least part of a cover element. The cover elements could for example be substantially flat. In a possible embodiment, the brush comprises at least two cover elements, wherein the brush body comprises at least two opposing side surfaces and wherein a first cover element is attached to a first side surface and a second cover element is attached to a second side surface such that said cover substantially elements enclose at least part of the brush body and preferably at least part of the receiving spaces. In case multiple cover elements are applied, preferably each cover element is made of a polymer material and attached to the brush body via plastic welding. 
     In case support members are applied, said support members can be attached to both the first cover element and the second cover element. In such way, the brush elements can be embedded within the brush body in an effective manner. 
     In a beneficial embodiment, at least part of the brush body defines a disk shape. Hence, the brush body, and the brush as such, may act as a rotatable disk. The brush body may comprises at least two opposing side surfaces and a rim or outer edge located between said side surfaces. The thickness of the brush body can be defined by the thickness (or width) of said rim or outer edge. The cover element(s) may have a substantially similar shape as a side surface of the brush body. In this way, a relatively large contact surface between the brush body and the cover element(s) can be obtained which will enable the provision of a decent and strong connection between said brush components. It is conceivable that the plastic welding causes the brush body, cover element(s) and/or support member(s), if applied, to merge and/or fuse together. The brush elements are preferably made of a (polymer) material having a higher melting temperature. This will result in that the brush element would typically not be affected during the plastic welding step. The brush body preferably comprises at least one opening, preferably a central opening. The opening can be substantially central positioned within the brush body. Said central opening enables that the brush can be position over an axis or element of the vehicle washing system. The central opening can be of any suitable shape dependent on the vehicle washing system the brush is intended for. Hence, the opening can be substantially circular, square, triangle and/or polygon. It is also conceivable that the opening is provided with one or more coupling members. Such coupling members, if applied, can be configured for mutual co-action with part of the vehicle washing system. The brush body according to the present invention can for example be substantially symmetrical. This may positively contribute to the stability of the brush during use. 
     A preferred embodiment of the brush according to the present invention comprises a brush body which comprises at least one and preferably multiple protruding stability members, wherein at least one, and preferably each stability member is positioned between (two) adjacent brush elements. Said at least one stability member and preferably multiple protruding stability members project transversely and/or radially with respect to the brush body. The stability members are in particular configured for providing guidance and/or stability for the brush elements in particular during a washing operation. Typically, the brush according to the present invention is configured for rotational movement due to rotation of an axis on which the brush is (temporarily) affixed. The rotational movement of the axis will cause the brush to rotate as well and the brush elements will successively get into contact with a vehicle to be washed. The stability members may smoothen the movement of the brush elements and to stabilise the brush. The stability members can provide a dampening effect with regard to the mobile, extending part of the brush elements. In a preferred embodiment, at least one stability member and preferably each stability member forms integral part of the brush body. Hence, the stability members can be integrally connected to the brush body. It is also conceivable that the brush body defines multiple stability members. The brush body and the stability members can be made out of one piece. The stability members are preferably provided next to a receiving space. It is possible that the side wall of the receiving space, in particular a channel of the receiving space, extends towards the side wall of the stability member. It is conceivable that the number of stability members equals the number of receiving spaces. It is for example possible that each stability member is provided adjacent to a receiving space. In such way the stability member can optimally co-act with a brush element. It is also conceivable that each receiving space is enclosed between two stability members protruding from opposing sides of the receiving space. The number of stability members preferably equals the number of brush elements. However, it is also conceivable that multiple brush elements are received in an individual receiving space. Preferably, in between individual receiving spaces a stability element is positioned. The brush according to the present invention typically comprises at least  4  brush elements, preferably at least 8, more preferably at least 12. It is also conceivable that the brush comprises up to 20 or 30 brush elements. The suitable number of brush element also depends on the application of the brush and the dimensions thereof. The stability members typically have a length which is shorter than the part of the brush element which extends with respect to the brush body. The ratio of the length of at least one stability member with respect to an adjacent brush element is for example at least 1:5. It is also conceivable that the ratio is in the range of 1:4 to 1:2. 
     The brush elements are preferably at least partially made of different material than where the brush body and/or the cover element(s) are made of. The brush element can for example be made of a polymer material, a textile and/or a hybrid version thereof. The brush element could also be at least partially made of a foam material, for example an open cell foam and/or a closed cell foam. It is also imaginable that at least part of the brush elements are made of a woven and/or non-woven material, in particular a woven and/or non-woven textile. The brush element can also comprise a laminate of materials. It is possible that the brush element comprises a laminate layer which is susceptible for the plastic welding step applied during fabrication. Hence, part of the brush element can also be attached to the brush body and/or at least one cover element via plastic welding. 
     Preferably, the brush element is manufactured from one sheet of (laminated) material. This is a simple and solid construction. It is also possible that the brush element comprises multiple parts, such that the part which extends with respect to the brush body can be replaced. This is advantageous in case the tip or a part of a brush element is damaged, because it allows a replacement of one brush element instead of accepting a damaged brush element or replacing the entire brush. The brush element may for this purpose comprise complementary parts using velcro and/or hook-and-loopfasteners for a temporary but solid connection between the parts. 
     In an embodiment all brush elements may be composed of the same material. Alternatively, one brush may comprise brush elements composed out of different materials. The brush elements may be chosen depending on the desired application, for example washing, polishing, buffing, soaping, removing filth or drying. 
     In an alternative embodiment, the brush body can be a modular brush body. The brush body can for example comprise at least two body parts which can be mutually connected. The body parts can then enclose at least part of the brush elements. It is also conceivable that at least one cover element as described above forms a body part of the modular brush body. 
     In an alternative embodiment, the invention also relates to a brush for a vehicle washing system, comprising at least one brush body comprising at least one, and preferably multiple receiving spaces; at least one, and preferably multiple brush elements; and at least one cover element; wherein at least part of at least one brush element, and preferably of each brush element, is received within part of a(n individual) receiving space and wherein at least a further part of said brush element extends with respect to the brush body; and wherein the cover element is attached to the brush body such that said cover element covers at least part of the receiving spaces, wherein at least part of the brush body and at least part of at least one cover element are preferably made of a polymer material and wherein the brush body and the cover element are connected together by a glue and/or an (laminated) adhesive. Glue has the advantage that no expensive installations or machines are necessary to make the connection between the cover element and the brush body. Glue is easy to buy and apply. Several types of glues or adhesives are suitable. In an embodiment, the parts may be glued together by applying glue on both parts to be connected. Alternatively, the cover element may be provided with an adhesive covered by a protective film (adhesive tape). Before connecting the cover element and the brush body together, the film is removed to expose the adhesive on the cover element. The side of the cover element which is covered with adhesive is pressed against the brush body comprising brush elements in the receiving spaces and thus connecting the cover element and brush body. Any material or polymer which is suitable to be glued may be used in this alternative embodiment. Any of the indicated embodiments for the brush body, brush elements, receiving spaces, cover element and further components can be applied for this embodiment. 
     The invention also relates to a brush body for use in a brush according to the present invention. 
     The invention further relates to the use of a brush according to the present invention. 
     The invention also relates to a brush assembly comprising an axis and multiple adjacent brushes according to the present invention. In such assembly, the brush bodies of the brush are typically fixated on, op positioned upon, said axis, preferably adjacent and in contact to each other and positioned such that the receiving spaces are mutually aligned. 
     The invention additionally relates to a method of producing a brush for a vehicle washing system, in particular according to the present invention, comprising the steps of:
         providing at least one brush body comprising multiple receiving spaces, wherein at least part of said brush body is made of a polymer material;   providing multiple brush elements and positioning at least part of at least one brush element and preferably each brush element in a receiving space such that at least a further part of said or each brush element extends with respect to the brush body;   providing at least one cover element wherein at least part of said cover element is made of a polymer material, and positioning the at least one cover element upon the brush body such that said cover element covers at least part of the receiving spaces; and   attaching the cover element to the brush body via plastic welding.       

     The method according to the present invention has several benefits. The brush according to the present invention further benefits of a relatively simple configuration which can be efficiently produced, even on a large scale, due to the mutual co-action between the brush body, at least one cover element and the multiple brush elements. The method may include a cutting operation, for example laser cutting or waterjet cutting, for cutting out the brush body from a polymer material, in particular a polymer foam. Said step may also include the provision of the receiving spaces. Hence, the method may also include the step of providing multiple receiving spaces into the brush body. The brush body, brush element(s), receiving spaces and cover element(s) may be any of the embodiment disclosed for the present invention. Preferably, at least one brush element comprises at least one support member which is made of a polymer material, such that the support member(s), brush body and cover element(s) can be mutually attached via plastic welding. Any of the abovementioned embodiments of the brush and its components are applicable to the method according to the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will further be elucidated according to the following non-limitative figures, wherein: 
         FIG.  1   a    shows an embodiment of a brush according to the present invention, and 
         FIG.  1   b    shows an exploded view of the brush of  FIG.  1   a   ; and 
         FIG.  2   a - 2   d    show a schematic and detailed view of various embodiments of receiving spaces in a brush body according to the present invention; and 
         FIGS.  3   a - 3   h    show a schematic side view of various embodiments of a brush body wherein shape and dimensions of the protruding stability members vary. 
         FIGS.  4   a - 4   h    show a schematic side view of various embodiments of a brush body comprising a preferred embodiment of the protruding stability members with various central openings of various shapes; and 
         FIG.  5   a    shows a perspective view on a brush element; and 
         FIG.  5   b    shows a perspective view on a brush element as used in the brush according to the present invention; and 
         FIG.  6    shows an embodiment of a brush assembly according to the present invention. 
     
    
    
     Within these figures, similar reference numbers correspond to similar or equivalent elements or features. 
     DESCRIPTION OF THE INVENTION 
       FIG.  1   a  and  1   b    show an embodiment of a brush  1  for a vehicle washing system according to the present invention.  FIG.  1   a    shows an assembled configuration of the brush  1  whereas  FIG.  1   b    shows an exploded view. The embodiment of a brush  1  according to the present invention comprises a brush body  2 , wherein multiple brush elements  5  are contained in receiving spaces  3 . The brush body  2  is configured for use in a vehicle washing system, wherein the brush  1  may rotate during washing operation. The brush body  2  may be mounted on an axis within the vehicle washing system. The brush elements  3  of the brush  1  get successively in contact with the vehicle to be washed, due to the rotational movement. The material of the brush element  3  depends on the application. In this embodiment a foam material is shown, which is further elucidated in  FIG.  5   . For containing the brush elements  5  the brush body  2  comprises multiple receiving spaces  3 , wherein each receiving space  3  contains a brush element  5 . From an individual receiving space  3 , a brush element  5  extends with respect to the brush body  2 . In the shown embodiment the brush elements  5  extend in a plane perpendicular to the circumference of the brush body  2 . The brush  1  further comprises a cover element  4 , which covers at least part of the receiving spaces  3  and at least a part of the brush body  2 . At least a part of the cover element  4  and at least a part of the brush body are made of a polymer material, preferably the same polymer material. The cover element  4  is connected via plastic welding to the brush body  2 . 
     In the shown embodiment, the brush  1  comprises a brush body  2  with multiple receiving spaces  3 , wherein the receiving spaces  3  are oriented circular and concentric with respect to the central opening  8 . The receiving spaces  3  are each configured to receive a brush element  5  with a support member  6 . In  FIG.  1   a    it is shown that the receiving space is filled with part of a brush element  5  and a support member  6 . In the shown embodiment, the receiving spaces  3  extends over the entire thickness of the brush body  2 . In the exploded view the brush element  5  is folded around the support member  6 , in the way wherein the parts are present in the assembled brush  1 . The support member  6  and the core  3   a  of the receiving space  3  have a complementing shape, wherein the core  3   a  of the receiving space  3  is slightly bigger than the support member  6  and slightly smaller than the outer dimensions of the support member  6  plus the thickness of the brush element  5 . All brush elements  5  comprise a first part  5   a  which is received in the core  3   a  of the receiving space  3 , a second part  5   b  which runs through the channel  3   b  of the receiving space and a third part  5   c  which protrudes from the brush body  2 . The channel  3   b  runs from the core  3   a  to the circumference of the brush body  2 . The brush element part  5   c  is flexible and during washing operation will move back and forth in a direction concentric with the brush body  2 . In this embodiment each brush element  5  comprises one first part  5   a,  two second parts  5   b,  and two third parts  5   c,  which is further elucidated in  FIGS.  5   a  and  5   b   . 
     The shown embodiment comprises two cover plates  4 , on opposite sides of the brush body  2 . The cover plates  4  cover at least all core parts  3   a  of the receiving spaces  3  and part of the brush body  2  at their respective side of the brush body  2 . In  FIG.  1    a the cover plate is translucent for illustrative purposes to show the configuration of the support members  6 , with respect to the brush body  2  and cover plate  4 . In the brush  1  according to the present invention the brush elements  5  are locked in the brush body  2  due to the connection between the support member  6  and the cover plate  4  and the connection between the brush body  2  and the cover plate  4 . Both connections are preferably made by (plastic) welding. 
     The cover plate  4  is thus connected to both the support members  6  and the brush body  2 . In the shown embodiment, the brush body  2 , cover plates  4  and support members  6  are made from the same polymer material and are fixated/connected together via plastic welding and thus locking in the brush elements  5 . This way the brush elements  5  are fixated within the brush  1 . The brush elements  5  may each comprise the same configuration, but the brush may also alternatingly comprise brush elements of different materials. The brush element  5  may also comprise a laminate of material sheets. Depending on the application, the brush elements may comprise fingers  5 ′ at the tip of the brush element, as also shown in  FIG.  5   . The figure further shows protruding stability members  7 , which are positioned in between two receiving spaces  3 .  FIG.  3    shows various embodiments of these protruding stability members  7 . The brush further comprises a central opening  8  for mounting on an axis in a vehicle washing system. The axis may be positioned either horizontally or vertically with respect to the vehicle to be washed. The brush comprises a predetermined shaped central opening  8 , which is complementary with the axis of the vehicle wash system where the brush according to the present invention is used. 
     Various embodiments of the brush body  2  are possible. The  FIGS.  2 ,  3  and  4    show some of these variations, wherein different shapes of the receiving spaces ( FIG.  2   ), protruding stability members ( FIG.  3   ) and central opening ( FIG.  4   ) are shown. These are alle non-limitative examples and show an impression of various embodiments of a single brush body  2  according to the present invention. 
       FIGS.  2   a - 2   d    show embodiments of brush bodies  2  with variations to the round core  3   a  of the receiving space  3  as shown in  FIG.  1   , all variations have in common that a straight channel  3   b  runs between the core of the receiving space and the circumference of the brush body  2 . In  FIG.  2   a    the receiving space  13  a shows hexagonal core  13   a  and a straight channel  3   b  from one of the sides of the hexagonal shaped core.  FIG.  2   b    shows a pentagonal alike shaped receiving space core  13   b,  wherein the channel runs straight from a point where two sides of a pentagonal are touching. The sides adjacent to the channel are curved, whereas the other three opposing sides are more straight.  FIG.  2   c    shows a triangular core  13   c,  where the channel runs from the middle of one side of the triangle.  FIG.  2   d    shows a rectangular, in particular square, shaped core  13   c,  which is positioned such that the channel runs from the middle of one side of the rectangular shape. 
     All corners of the shapes used for the core may be rounded in various degrees, the embodiments shown are examples and serve to show that several options are possible. The shape of the support member will be complementary to the shape of the core of the receiving space and be adjusted according to the shape chosen for the receiving space. 
       FIGS.  3   a - 3   h    show a schematic side view of various embodiments of a brush body  2  wherein shape and dimensions of the protruding stability members  7  vary. The shape and size of the protruding stability members  7  may vary depending on the material properties chosen for the brush body  2 , stability members  7  and brush elements (not shown). All shown embodiments have in common that the protruding stability members are integral part of the brush body, because this is a preferred way of a cost-effective manufacturing of the brush body comprising protruding stability members. The brush body  2  including the protruding stability members  7  is cut out of a polymer foam. The embodiments shown in  FIGS.  3   a - 3   h    show examples of variations that may occur in practice, different embodiments have different stabilising and dampening characteristics. Depending on the washing operation to be performed by the brush according to the present invention, the desired protruding stability members can be chosen. The protruding stability members  7  may be longer for more dampening and stabilizing effect on the brush elements  5 , as for example shown in  FIG.  3   c   . In another embodiment the protruding stability members  7  have rounded shapes as in  FIG.  3   h    for a smoothened movement of the brush elements. It is also possible that the protruding stability member is at one side in contact with a brush element. 
       FIGS.  4   a - 4   h    show a schematic side view of various embodiments of a brush body  2  comprising a preferred embodiment of the protruding stability members  7  with various central openings  8   a,    8   b,    8   c,    8   d,    8   e,    8   f,    8   g,    8   h,    8   i  of various shapes and/or sizes. Each central opening  8  corresponds to an axis of a particular size and/or shape. Typically, each brand uses their own typical shape for the axis and thus the brush is complementary to the axis. So that in practice the shape corresponds to particular desired/predetermined brands or systems that have said size and/or shape as a standard for their axis and brush assemblies. Preferably the shapes of the central opening are such that due to their shape the brush remains in its position on the axis during rotation of the axis. 
     Further, an embodiment of a brush element will be shown in a little more detail in  FIGS.  5   a  and  5   b   .  FIG.  5   a    shows an embodiment of a brush element  5  as used in the brush as shown in  FIG.  1   . A brush element  5  comprises a first part  5   a  which is received in the core  3   a  of the receiving space  3 , a second part  5   b  which runs through the channel  3   b  of the receiving space and a third part  3   b  which protrudes from the brush body  2 . In this embodiment each brush element  5  comprises one first part  5   a,  two second parts  5   b,  and two third parts  5   c.  The shown brush element  5  is made out of one piece of material, or a laminate of materials. Depending on the purpose of the brush the material can be chosen. The shown embodiment of the third part  5   c  of the brush element comprises an end portion  5   d  wherein the brush element is longitudinally divided into multiple smaller elongated brush segments, brush fingers  5 ′. The brush fingers  5 ′ are optional and preferably used when the brush element is manufactured from a foam material. The brush may also be manufactured from a flexible and soft textile without fingers. For example, if the brush according to the present invention is used for drying operations, the brush element usually has no fingers to enhance the drying effect. For the drying application the brush elements are preferably as wide as possible. 
       FIG.  5   b    shows an embodiment of the brush element  5  as if it is positioned within a brush body. The first part  5   a  is received in the core  3   a  of a receiving space  3 , and this is filled with a support member  6 . In this example the support member  6  has the shaped of a rod and is preferably used in combination with a complementary round-shaped core  3   a  of a receiving space. The support member  6  is in this embodiment manufactured from the same polymer foam material as the cover plate  4  and the brush body  2  and these elements are affixed due to plastic welding. Due to this connection the brush element  5  is affixed within the brush body  2 . The brush elements  5  may be more stiff or flexible depending on the application. 
     In the shown embodiment of the brush element in  FIG.  5   , the brush element is made out of one piece of material, or a laminated material. It is also possible that part(s)  5   c,  the part which extends from the brush body outwards, is/are removable from the parts  5   a  and  5   b , such that the part(s)  5   c  can be removed and replaced. 
       FIG.  6    shows an embodiment of a brush assembly  20  comprising an axis  22  and multiple adjacent brushes  21  which are fixated on said axis  22 . In the embodiment shown, the brush bodies  23  of the brushes  21  are positioned such on the axis  22  that the receiving spaces and thus the brush elements are mutually aligned. The shape of the central openings of the brushes  21  are complementary to the shape of the axis  22 . 
     Preferred embodiments of the invention are set out in the non-limitative set of clauses presented below:
     1. Brush for a vehicle washing system, comprising:
       at least one brush body comprising multiple receiving spaces;   multiple brush elements; and   at least one cover element;
 
wherein at least part of at least one brush element, and preferably of each brush element, is received within part of a receiving space and wherein at least a further part of said brush element extends with respect to the brush body;
 
and wherein the cover element is attached to the brush body such that said cover element covers at least part of the receiving spaces, wherein at least part of the brush body and at least part of at least one cover element are made of a polymer material and wherein the brush body and the cover element are connected via plastic welding.
   
       2. Brush according to clause 1, wherein at least part of the brush body and at least part of at least one cover element are made of a substantially similar polymer material.   3. Brush according to any of the previous clauses, wherein at least part of the brush body and at least part of at least one cover element are made of a polymer foam.   4. Brush according to any of the previous clauses, wherein at least part of the brush body and/or at least part of the cover element are made of a polymer material comprising extruded polyethylene and/or closed cell foam and/or open cell foam and/or polyethylene foam and/or polyurethane foam.   5. Brush according to any of the previous clauses, wherein at least part of the receiving spaces are provided at an outer edge of the brush body.   6. Brush according to any of the previous clauses, wherein at least one, and preferably each receiving space defines a channel and a core segment.   7. Brush according to any of the previous clauses, wherein at least one brush element comprises at least one support member which is made of a polymer material.   8. Brush according to any of the previous clauses, wherein the brush body comprises at least two opposing side surfaces, wherein at least one, and preferably each receiving space extends between said side surfaces.   9. Brush according to any of the previous clauses, comprising at least two cover elements, wherein the brush body comprises at least two opposing side surfaces and wherein a first cover element is attached to a first side surface and a second cover element is attached to a second side surface such that said cover elements substantially enclose at least part of the brush body.   10. Brush according to any of the previous clauses, wherein the brush body comprises at least one central opening.   11. Brush according to any of the previous clauses, wherein the brush body comprises multiple protruding stability members, wherein at least one, and preferably each stability member is positioned between (two) adjacent brush elements.   12. Brush according to clause 11, wherein at least one and preferably each stability member forms integral part of the brush body.   13. Brush according to clause 11 or 12, wherein the stability members have a length which is shorter than the part of the brush element which extends with respect to the brush body.   14. Brush according to any of the previous clauses, wherein the brush elements are made of a polymer material, or a textile and/or a hybrid version thereof.   15. Brush according to any of the previous clauses, wherein the brush body is a modular body.   16. Brush body for use in a brush according to any of the previous clauses.   17. Brush assembly comprising an axis and multiple adjacent brushes according to any of the clauses 1-15.   18. Use of a brush according to any of clauses 1-15.   19. Method of producing a brush for a vehicle washing system, in particular according to any of clauses 1-15, comprising the steps of:
       providing at least one brush body comprising multiple receiving spaces, wherein at least part of said brush body is made of a polymer material;   providing multiple brush elements and positioning at least part of at least one brush elements and preferably each brush element in a receiving space such that at least a further part of said brush element extends with respect to the brush body;   providing at least one cover element wherein at least part of said cover element is made of a polymer material, and positioning the cover element upon the brush body such that said cover element covers at least part of the receiving spaces; and   attaching the at least one cover element to the brush body via plastic welding.   
       20. Method according to clause 19, wherein providing at least one brush body comprises a cutting operation for cutting out the brush body from a polymer material, in particular a polymer foam.   21. Method according to clause 19 or 20, wherein at least one brush element comprises at least one support member which is made of a polymer material.   

     It will be clear that the invention is not limited to the exemplary embodiments which are illustrated and described here, but that countless variants are possible within the framework of the attached claims, which will be obvious to the person skilled in the art. In this case, it is conceivable for different inventive concepts and/or technical measures of the above-described variant embodiments to be completely or partly combined without departing from the inventive idea described in the attached claims. 
     The verb ‘comprise’ and its conjugations as used in this patent document are understood to mean not only ‘comprise’, but to also include the expressions ‘contain’, ‘substantially contain’, ‘formed by’ and conjugations thereof. 
     The term vehicle washing system as used in this patent document are understood to mean not only washing, but to also include a vehicle polishing system, a vehicle buffing system and a vehicle drying system.