EP3695746A1 - Paintbrush with snap-in connection - Google Patents

Abstract

A paintbrush (19) has a brush handle (1), a bristle carrier (11), a ferrule (15) and a brush longitudinal axis (18). The brush handle (1) has a brush handle latching element (4) at a first end (3). The bristle carrier (11) has a bristle carrier latching element (12) on a first end face (36) so that the bristle carrier (11) can be latched to the brush handle (1). The bristle carrier (11) has a plurality of bristles (20) and a plurality of bristle bundles (24) formed from the bristles (20). The bristle carrier (11) has recesses (23), in each of which a bristle bundle (24) is held. The bristles (20) and the bristle bundles (24) are attached to the bristle carrier (11) without glue. The ferrule (15) at least partially surrounds the bristle carrier (11) with respect to its extension along the longitudinal axis (18) of the brush and is designed in one piece with the bristle carrier (11).

Description

TECHNICAL FIELD OF THE INVENTION

The invention relates to a paintbrush.

Paintbrushes are used to paint walls and ceilings and anywhere else where a paint, oil, surface coating or the like is applied to a surface.

Paint brushes include flat brushes, flat brushes, round brushes or ring brushes and ceiling brushes, as well as various paint brushes for special purposes such as radiator brushes or facade brushes.

STATE OF THE ART

The German utility model DE 7 719 160 U1 discloses a brush having a stem with a nose formed on one end. The approach has a circumferential undercut section. To produce the brush, bristles are combined into a bristle bundle the size of the full bristle facing of the brush to be produced, and the bristle bundle is inserted into a ferrule. At its end opposite the bristle bundle, the clamp has a circumferential locking projection. The ferrule with the bundle of bristles can be pushed onto the attachment, the locking projection of the ferrule engaging the undercut section of the attachment and thus locking the ferrule with the bundle of bristles on the brush handle.

The German utility model DE 7 615 196 U1 discloses a paintbrush with a plastic handle and a metal ferrule. A bundle of bristles the size of the full bristle set of the brush is firmly cemented in the sheet metal clamp, so that a brush head is formed with the sheet metal clamp and the bundle of bristles. The plastic handle has at least one hole at one end, while the sheet metal clamp has at least one round embossing that acts as a snap-in cam. The latching cam or latching cams of the sheet metal clamp can or can engage in the hole or holes when the sheet metal clamp is pushed onto the plastic handle, and thus the sheet metal clamp locks onto the plastic handle. The locking connection formed in this way can be released in order to be able to exchange the brush head.

The German utility model DE 7 704 172 U1 discloses a brush with a handle and a ferrule. The ferrule envelops a single bundle of bristles that forms the entire bristle facing of the brush and is cemented into the ferrule so that a brush head is formed with the ferrule and the bundle of bristles. The clamp has locking cams. The handle has a circumferential collar or several circumferential collars at one end. The locking cams of the clamp can grip behind this collar or these collars when the clamp is pushed onto the handle and thus lock the clamp on the handle. The multiple collars allow different clamps with differently arranged locking cams to be pushed on. In addition, the handle has a tapering attachment with circumferential undercuts at the end onto which the clamp is pushed. The approach is intended to engage in the putty holding the bristles and improve the hold of the bristles.

Another brush is from the German utility model DE 83 24 256 U1 known. The brush has a brush handle, a bristle carrier and a ferrule. The bristle carrier and the ferrule are made in one piece. For example, it is a plastic injection molded part. This has bundles of bristles that are glued in the bristle carrier. The brush handle is hollow so that the brush head basic element is partially pushed into the brush handle and fastened there by means of a latching connection and can be removed again later.

OBJECT OF THE INVENTION

The invention is based on the object of providing a particularly environmentally friendly paintbrush.

SOLUTION

The object of the invention is achieved according to the invention with the features of the independent claims.

Further preferred embodiments according to the invention can be found in the dependent claims.

DESCRIPTION OF THE INVENTION

The invention relates to a paintbrush according to claim 1 and a brush head basic element according to claim 12.

In prior art brushes, the bristles are secured in the ferrule. The clamp provides a kind of side wall into which the bristles are glued using glue or putty, so that the bristles are arranged in a thick layer of glue or putty. The layer of glue or putty faces the brush handle and the brush handle may interfere with the layer of glue or putty.

According to the invention, however, the bristle carrier is designed in such a way that the bristles are arranged in the bristle carrier without glue. In contrast to the prior art, the bristles are not fastened in the clamp, but are inserted directly on or in the bristle carrier according to the invention. The bristle carrier therefore forms a type of floor which is arranged completely between the bristles and the brush handle - a function that the adhesive or putty takes over in prior art brushes.

The bristle carrier can consist of a solid material, for example wood or plastic.

Bristles are also referred to as "filaments", especially when they are made of plastic. This is to be included here with the term “bristles”.

The paintbrush has a longitudinal axis of the brush. In the simplest case, the longitudinal axis of the brush runs along the brush handle, through the bristle carrier and possibly parallel to an extension direction the bristles. There can be a deviation from this if the direction of extension of the bristles is not parallel to the brush handle. This can be the case with so-called radiator brushes, in which the brush handle is angled in its entirety in relation to the direction in which the bristles extend. A brush longitudinal axis can in this case be defined by the bristle carrier. It then runs parallel to the direction in which the bristle carrier extends between the brush handle and the bristle bundles.

The ferrule at least partially surrounds the bristle carrier with respect to its extension along the longitudinal axis of the brush. The ferrule is formed in one piece with the bristle carrier. This takes into account the fact that the clamp according to the invention no longer has to fulfill the function of the prior art of enclosing and holding the bristles. The clamp therefore no longer has to be "hollow".

The ferrule can, even if it is formed in one piece with the bristle carrier, correspond in its appearance to the ferrule of a paintbrush according to the prior art described in the introduction. But because according to the invention it is not used to fasten the bristles, the ferrule can surprisingly be used for one or more new functions instead. The clamp can also only be present in order to adapt a visual appearance to the expectations of a user. A paintbrush user is used to and may expect a ferrule to be present. The clamp can therefore only be present in some circumstances to meet this expectation of the user and to make a paintbrush according to the invention or a paintbrush manufactured with individual parts according to the invention appear like a paintbrush according to the prior art.

The clamp can completely enclose the bristle carrier in its extension along the longitudinal axis of the brush. Then only one bristle carrier surface is exposed from the bristle carrier, on which the bristles can be arranged. An opposite surface of the bristle carrier can be completely covered by the brush handle where the bristle carrier and the brush handle adjoin one another.

The ferrule can also encircle the first end of the brush handle. Seen along the longitudinal axis of the brush, the ferrule can extend beyond the bristle carrier. If the Brush handle and the bristle carrier are locked together, the brush handle can then to a certain extent extend into the ferrule.

The bristle carrier, and with it the brush head base element, can assume a variety of sizes and shapes. In a plan view perpendicular to the longitudinal axis of the brush, the bristle carrier can for example be round, oval or rectangular or have a mixed shape, for example a rectangle with rounded corners or curved sides. The bristle carrier can have any width and any depth or thickness. A width of the bristle carrier can, for example, be between 20 mm and 90 mm, between 30 mm and 70 mm, or between 50 mm and 70 mm. It is possible that a brush handle that is locked or is to be locked to a bristle carrier has a shape, size and / or length that is matched to the shape and / or size (width, depth / thickness) of the bristle carrier.

The brush handle can in particular consist of wood.

The bristle carrier and the ferrule can be made of wood or plastic, for example.

The bristle carrier can have a convexly curved bristle carrier surface. The convexly curved bristle carrier surface can be designed in many ways. In the simplest case, with a round bristle carrier it can be shaped like a dome.

A plurality of bristle bundles are formed from the bristles. The bristle carrier has recesses, in each of which a bundle of bristles is held. In contrast to the brushes of the prior art with a latched brush head, the entire bristle facing is therefore not formed by a single bristle bundle and the bristles are also not held in the ferrule. The formation with individual bristle bundles is advantageous because it creates spaces between the bristle bundles, especially near the recesses, which under certain circumstances can absorb a liquid and dispense it again in a metered manner for brushing. For example, an area is formed between the area in which the bristle bundles emerge from the recesses and an area in which the bristles diverge so far that the bristle bundles begin to touch each other, in which free spaces are arranged between the bristle bundles. These gaps serve as a fluid reservoir, in which fluid is stored from a storage container, which is slowly released again when painted with a paintbrush. In this application The term "liquid" means paints including lacquers and glazes as well as oils and surface coatings.

The recesses - and thus the bristle bundles - can be arranged in a plurality of rows arranged next to one another. The rows can run straight. But they can also be curved.

The bristles and consequently also the bristle bundles can be bent in a U-shape. If the bristle bundles are to be bent in a U-shape, either the individual bristles can be bent in a U-shape and then combined into a bristle bundle or the bristles can first be combined into a bristle bundle and then bent in a U-shape.

The term "U-shaped bent" is also intended to include slight deviations from the "U" shape, for example a "V" shape (i.e., "V-shaped kink") caused by kinking of the bristles or bristle bundles. Such slight deviations from the U-shape do not differ from this functionally.

The bristles and / or the bristle bundles can have bristle tips, a tip end formed from the bristle tips, an opposite bend end and a length section arranged between the tip end and the bend end, with adjacent bristles and / or bristle bundles touching one another in part of their length sections.

The bending of the bristles and / or bristle bundles then leads to the fact that each bristle runs through the length section twice. Between its two bristle tips, the bristle therefore not only has one area assigned to the length section, but two such areas. Between these - approximately in the middle of the bristle - an area is arranged which is bent in a U-shape or can be bent in a U-shape and which is assigned to the bent end of the bristles and / or the bristle bundle.

The bend end can each be fastened to one of the recesses, so that in this way the bristle bundle is held in the recess.

The statements made in this application regarding the fact that bristles and bundles of bristles are touching or not touching each other relate to an unused, unloaded state of the paintbrush. The fact that the bristle bundles touch one another means that at least one bristle of one bristle bundle and one bristle of the other bristle bundle touch one another. Typically, several bristles of one bristle bundle and the other bristle bundle will touch one another. Such bristles, which are centrally located in each bristle bundle, are unlikely to touch any other bristle bundle. Most of the bristles will each touch at least one other bristle of their own or an adjacent bristle bundle.

Depending on their arrangement, the bristle bundles have a different number of adjacent bristle bundles. If, for example, the recesses, and thus the bristle bundles, are arranged on a square grid, the bristle bundles arranged at the corners have two adjacent bristle bundles, the bristle bundles arranged at the edges have three adjacent bristle bundles and the bristle bundles arranged within the grid have four adjacent bristle bundles. In particular, the bristle bundles arranged at the edges or corners can have bristles that do not touch any other bristles in their length section.

The fact that the bristles touch each other in their length does not have to mean that they touch each other over their entire length. The recesses will be at least slightly spaced apart. This means that the bristle bundles where they emerge from a recess in which they are fastened have the diameter of the recess and are consequently spaced from the adjacent bristle bundles, just as the associated recess is spaced from their adjacent recesses. Typically, however, the bundles of bristles are tightly compressed for insertion into the recesses. This means that the bristles will diverge outside the recess. It is this striving of the individual bristle bundles that makes it possible for adjacent bristle bundles to touch one another.

The bristles can also touch one another in the area of the tip end. However, it is also possible for the bristles to diverge in such a way that they do not touch at the tip ends of the bristle bundles. This can in particular also apply to the bristles which do not touch any other bristle in their length section. In both cases, however, the bristles can form a closed bristle surface. That means, the bristle tips are at least arranged essentially flush and lying close together, which may or may not touch. A closed bristle level causes a particularly even application of liquid.

The bristle tips can form a straight or a rounded surface in the area of the bristle surface. Individual bristle tips can protrude. This can be caused by small manufacturing inaccuracies, for example when individual bristles have slipped in their respective bristle bundles so that their two bristle tips are not flush.

The paintbrush is suitable for particularly precise application of liquid if the bristles are sharpened in the area where the liquid is applied. If the bristles in the bristle bundles are bent in a U-shape, this means for the paintbrush according to the invention that the bristles can be sharpened at their two bristle tips. Due to the U-shaped bend, the two sharpened bristle tips of each bristle come to rest in the area of the tip end. Since natural bristles have at most one pointed bristle tip due to the way they have grown, artificially produced bristles are particularly suitable for the paintbrush according to the invention if the bristles and / or the bristle bundles are to be bent in a U-shape. The bristles can in particular be mechanically or chemically sharpened at one or both of their bristle tips.

The bristles and the bristle bundles are fastened without glue in the recesses of the bristle carrier. In addition to adhesives in the narrower sense, adhesives are also to be understood as meaning, for example, putties, rubbers and resins that can be applied in a viscous state and then harden.

A plurality of fastening means can be provided for fastening the bristles and / or bristle bundles. The fastening means can be fastened to the bristle bundles by means of a force fit and / or form fit and to the bristle carrier by means of a force fit and / or form fit. In the course of the fastening, the fastening means can penetrate into the respective recess in which the bristles and / or the bristle bundle should or should be fastened.

There can also be a plurality of anchoring wires. The bristles and / or bristle bundles can be fastened in the bristle carrier by an anchoring wire in each case is passed over (or through) the bent end of the bristle bundle and anchored in the bristle carrier.

Some of the recesses can have an angle deviating from 0 ° to the longitudinal axis of the brush. In principle, all recesses can also have an angle deviating from 0 ° to the longitudinal axis of the brush. However, only individual, in extreme cases only one of the recesses can have the angle.

The recesses can have at least two different angles deviating from 0 ° to the longitudinal axis of the brush. Only angles deviating from one another in terms of amount should be regarded as different.

The recesses can, for example, be angled outwards, so that the bundles of bristles inserted into the recesses easily diverge. The divergence can only take place to such a small extent that it is barely noticeable. However, it is entirely possible that the bristle bundles diverge so far that a perceptible fanned-out shape of the paintbrush is created.

The recesses can, for example, also be angled inward, so that the bundles of bristles inserted into the recesses easily tend towards one another. As a result, what is known as a closure of the bristles and / or a particularly smooth and / or firm bristle level can optionally be achieved in an advantageous manner. In this way, under certain circumstances, a particularly precise and metered delivery of liquid can be enabled.

Both the brush handle latching element and the bristle carrier latching element can have a connecting protuberance or a connecting recess. If a brush handle locking element and a bristle carrier locking element are assigned to one another, for example in the case of a paintbrush according to the invention or a bristle carrier according to the invention and a brush handle according to the invention, which are intended to be locked to one another, in particular one of the two locking elements (the bristle carrier Latching element and the brush handle latching element) have the connecting protuberance and the other of the two latching elements have the connecting recess. Then, when the bristle carrier and the brush handle are pushed onto one another, the connecting protuberance can engage in the connecting recess and thus a connection between the bristle carrier and the brush handle getting produced. The connecting protuberance and the connecting recess can thus become part of the locking connection unit.

Both the brush handle latching element and the bristle carrier latching element can have a latching projection or a latching recess. Both the bristle carrier locking element and the brush handle locking element can each have a locking projection or a locking recess. For the function of the brush handle locking element and the bristle carrier locking element, which allows the locking connection unit to be formed, it is only necessary that the locking projection and the locking recess or the locking projections or the locking recesses can each be brought into engagement with one another in such a way that the In -Bringing into engagement and thus a first force is necessary to form the locking connection unit and a second force is necessary for opposing separation and thus for releasing the locking connection unit, the second force being at least as great or at least greater than the first force.

The latching projection or the latching recess can each, if it is arranged on a connecting protuberance, be circumferential on the connecting protuberance or, if it is arranged on a connecting recess, be circumferential on the connecting recess. This can mean that the latching projection or the latching recess also runs around the longitudinal axis of the brush when the brush handle and / or the bristle carrier is part of a paintbrush. If, for example, one or the locking projection or a locking recess is circumferential, the other locking projection or the locking recess or the other locking recess need not necessarily also be circumferential (and vice versa). It is entirely possible that the locking projection and the locking recess or the locking projections or the locking recesses for forming the locking connection unit cannot be brought into engagement with one another over their entire extent.

The brush handle can have a brush handle guide surface. The brush handle guide surface can be circumferential around the brush handle. This can mean that the brush handle guide surface runs around the longitudinal axis of the brush if the brush handle is part of a paintbrush.

The brush handle guide surface and / or the brush head guide surface can or can therefore be circumferential around the longitudinal axis of the brush. It is in turn possible that a brush handle guide surface (or a brush head guide surface) that only extends around a partial circumference the brush longitudinal axis extends, cooperates with a brush head guide surface (or with a brush handle guide surface) which is circumferential around the brush longitudinal axis.

The brush head basic element can have a brush head guide surface. The brush head guide surface can be circumferential on the brush head basic element. This can mean that the brush head guide surface revolves around the longitudinal axis of the brush when the brush head basic element is part of a paintbrush. The brush head guide surface can also be formed on the clamp, it being possible for the brush head guide surface to be circumferential on the clamp. The brush head guide surface can in particular be formed on the clamp if the clamp is formed in one piece with the bristle carrier. In this way, according to the invention, the clamp can surprisingly assume a new function.

If a paintbrush is formed by the brush head or the brush head basic element being pushed onto the brush handle, the brush handle guide surface and the brush head guide surface can rest against one another.

Both the brush handle guide surface and the brush head guide surface can be an outer guide surface or an inner guide surface. However, in the case of two guide surfaces which are intended to engage one another, one of the guide surfaces is expediently an outer guide surface and the other guide surface is an inner guide surface. In the case of a paintbrush or a brush handle and brush head or a brush head basic element which are intended to produce a paintbrush, either the brush handle guide surface can expediently be an outer guide surface and the brush head guide surface an inner guide surface or the brush handle Guide surface be an inside guide surface and the brush head guide surface be an outside guide surface.

Since the brush handle guide surface and the brush head guide surface bear against one another, the brush handle and the brush head (or the brush head basic element) are secured against kinking as a result of forces transverse to the longitudinal axis of the brush. Such forces at right angles to the longitudinal axis of the brush cause the brush handle guide surface and the brush head guide surface to be pressed against each other, whereby a fit between the brush handle guide surface and the brush head guide surface can be chosen so that there is little or no play. As a result, the paintbrush is stabilized against loads across the Brush longitudinal axis, as it occurs when the paintbrush is used and which can lead to an undesired loosening of the locking connection.

The brush handle guide surface and the brush head guide surface can also be designed so that they stabilize against twisting as a result of rotational forces about the longitudinal axis of the brush. Such stabilization always occurs automatically when the brush handle guide surface and the brush head guide surface are not circular in a projection in a plane perpendicular to the longitudinal axis of the brush. Any other design in this plane, for example oval, polygonal, in particular square, stabilized against rotation around the longitudinal axis of the brush, whereby the fit of the brush handle guide surface and the brush head guide surface can be chosen so that there is little or no Game is present.

The brush handle guide surface can be arranged behind the brush handle latching element, as seen from the first end of the brush handle. As a result, a particularly stable connection of the brush handle with the brush head or the brush head base element can be established, in that it is possible that at one extreme of the first end of the brush handle the brush handle locking element and the brush head locking element in the locking connection unit have a first partial connection of the Make the brush handle with the brush head or the brush head basic element and spatially distant therefrom in the direction of a second end of the brush handle the brush handle guide surface and the brush head guide surface create a second partial connection of the brush handle with the brush head or the brush head basic element. As a result, the connection, which is supported at two mutually spaced locations, is particularly stable against kinking.

The brush handle guide surface can have a length, measured parallel to the longitudinal axis of the brush, which corresponds to at least 10%, at least a quarter, at least a third, at least 40% or at least half of a height of the bristle carrier or the brush head base element measured parallel to the longitudinal axis of the brush.

The brush head guide surface can have a length measured parallel to the longitudinal axis of the brush or a longitudinal axis of the brush head defined in accordance with the longitudinal axis of the brush, which is at least 10%, at least a quarter, at least a third, at least 40% or corresponds to at least half of a height of the bristle carrier or the brush head basic element measured parallel to the longitudinal axis of the brush or the longitudinal axis of the brush head.

Advantageously, the height of the brush head guide surface can be selected according to the height of the brush handle guide surface or, conversely, the height of the brush handle guide surface can be selected according to the height of the brush head guide surface.

The brush handle guide surface and the brush head guide surface can lie against one another, measured parallel to the longitudinal axis of the brush, by a length which corresponds to at least a quarter of a height of the bristle carrier or the basic element of the brush head measured parallel to the longitudinal axis of the brush.

The brush head guide surface and the brush handle guide surface can stabilize the brush handle and the brush head or the brush head basic element particularly well against kinking, the greater the height in relation to the entire height of the brush head basic element or the bristle carrier, along which the The brush head guide surface and the brush handle guide surface are in contact with one another.

It is possible that the brush handle and the bristle carrier and / or the brush head basic element and / or the brush head are only connected to one another by a form fit and / or a force fit. The form fit and / or force fit is then formed in particular in the latching connection unit. Since the bristles or the bristle bundles are attached without glue, a completely glue-free paintbrush can be implemented. This can be advantageous, for example, because it simplifies a manufacturing process for the paintbrush, but also because it saves material because it saves handling a chemical, for example a solvent-based adhesive, but also, for example, because a user of the paintbrush does not come into contact with a chemical such as a solvent-based adhesive. A glue-free paintbrush can also be easier to dispose of and, if necessary, to recycle.

The new paintbrush is particularly environmentally friendly if the brush handle is made of wood and the brush head base element is made of recycled plastic and these are connected to one another without adhesive.

It can be advantageous if the brush handle and the bristle carrier and / or the brush head base element and / or the brush head cannot be detached from one another without being destroyed. As a result, the risk of the bristle carrier and / or the brush head basic element and / or the brush head becoming detached from one another is prevented or reduced.

Advantageous developments of the invention emerge from the patent claims, the description and the drawings. The advantages of features and of combinations of several features mentioned in the description are only exemplary and can come into effect alternatively or cumulatively without the advantages necessarily having to be achieved by embodiments according to the invention. Without changing the subject matter of the attached claims, the following applies with regard to the disclosure content of the original application documents and the utility model: Further features can be found in the drawings - in particular the illustrated geometries and the relative dimensions of several components to each other and their relative arrangement and operative connection. The combination of features of different embodiments of the invention or of features of different patent claims is also possible in a way deviating from the selected back-references of the patent claims and is hereby suggested. This also applies to features that are shown in separate drawings or mentioned in their description. These features can also be combined with features of different patent claims. Features listed in the claims can also be omitted for further embodiments of the invention.

The number of features mentioned in the claims and the description are to be understood in such a way that precisely this number or a greater number than the stated number is present without the need for the explicit use of the adverb "at least". Thus, when a latching projection is mentioned, for example, this is to be understood to mean that precisely one latching projection, two latching projections or more latching projections are present. These characteristics can be supplemented by other characteristics or be the only characteristics that make up the product in question.

The reference signs contained in the claims do not represent a restriction of the scope of the subject matter protected by the claims. They only serve the purpose of making the claims easier to understand.

BRIEF DESCRIPTION OF THE FIGURES

Fig. 1

zeigt einen Längsschnitt einer ersten beispielhaften Ausführungsform eines erfindungsgemäßen Pinselstiels.

Fig. 2

zeigt eine Vorderansicht des Pinselstiels nach Fig. 1.

Fig. 3

zeigt einen Querschnitt und einen Längsschnitt einer ersten beispielhaften Ausführungsform eines Pinselkopf-Grundelements.

Fig. 4

zeigt eine Vorderansicht des Pinselstiels nach Fig. 2 und des Pinselkopf-Grundelements nach Fig. 3, wobei das Pinselkopf-Grundelement auf den Pinselstiel aufgeschoben ist.

Fig. 5

zeigt eine Vorderansicht einer ersten beispielhaften Ausführungsform eines erfindungsgemäßen Malerpinsels mit dem Pinselstiel nach Fig. 2 und dem Pinselkopf-Grundelement nach Fig. 3.

Fig. 6

zeigt eine perspektivische Ansicht einer zweiten beispielhaften Ausführungsform eines erfindungsgemäßen Pinselkopf-Grundelements von schräg oben.

Fig. 7

zeigt eine Vorderansicht und eine Seitenansicht eines erfindungsgemäßen Borstenträgers mit Borstenbündeln.

In the following, the invention is further explained and described with reference to preferred exemplary embodiments shown in the figures.

Fig. 1

shows a longitudinal section of a first exemplary embodiment of a brush handle according to the invention.

Fig. 2

Figure 12 shows a front view of the brush handle Fig. 1 .

Fig. 3

shows a cross section and a longitudinal section of a first exemplary embodiment of a brush head basic element.

Fig. 4

Figure 12 shows a front view of the brush handle Fig. 2 and the brush head primitive Fig. 3 , with the brush head basic element pushed onto the brush handle.

Fig. 5

shows a front view of a first exemplary embodiment of a paintbrush according to the invention with the brush handle according to FIG Fig. 2 and the brush head basic element Fig. 3 .

Fig. 6

shows a perspective view of a second exemplary embodiment of a brush head basic element according to the invention obliquely from above.

Fig. 7

shows a front view and a side view of a bristle carrier according to the invention with bristle bundles.

FIGURE DESCRIPTION

Fig. 1 shows a longitudinal section of a brush handle 1. The brush handle 1 has a grip area 2, which is ergonomically shaped here. The brush handle 1 can also take any other common shape of a handle of a paintbrush.

At a first end 3, the brush handle 1 has a brush handle latching element 4. The brush handle locking element 4 has a connecting protuberance 5. The connecting protuberance 5 has in the longitudinal section has a shape that corresponds approximately to an isosceles trapezoid, on the longest side of which a rectangle is connected, the side length of which, where it connects to the trapezoid, is smaller than that of the corresponding side of the trapezoid. A locking recess 6 is thus formed.

The connecting protuberance 5 is arranged on a shoulder 7 of the brush handle 1. The shoulder 7 has two laterally arranged, straight surfaces, here parallel to one another, which form brush handle guide surfaces 8. The two surfaces can also be part of the same brush handle guide surface 8 surrounding the brush handle 1. The brush handle guide surface 8 is here an outer guide surface 9.

Fig. 2 shows a front view of the brush handle 1. It can be seen here that the latching projection 6 extends around the connecting protuberance 5 in this exemplary embodiment, as does the guide surface 8.

Fig. 3 (a) shows a cross-section, Fig. 3 (b) a longitudinal section of a brush head basic element 10. The brush head basic element 10 has a bristle carrier 11. The bristle carrier 11 has a bristle carrier latching element 12 on a first end face 36, which in turn has a connecting recess 13. The connecting recess 13 is rectangular here both in cross section and in longitudinal section. Furthermore, the bristle carrier locking element 12 has a locking projection 14. Here, the bristle carrier latching element 12 has two latching projections 14a, 14b, each of which extends on one side of the connecting recess 13, the latching projections 14a, 14b being opposite one another.

Adjacent to the bristle carrier 11 and formed in one piece with the bristle carrier 11, the brush head base element 10 also has a clamp 15. The ferrule 15 is so named because its visual appearance corresponds to the ferrule in brushes according to the prior art. This can accommodate a desire of a user to have a traditional appearance despite technical improvements. However, the clamp 15 fulfills other functions than the clamp according to the prior art. The clamp 15 is not used to hold a bundle of bristles. Instead, the clamp 15 here encloses the bristle carrier 11, with which it is formed in one piece. Aside from the bristle carrier 11, the clamp 15 forms a brush head guide surface 16, which here is an inner guide surface 17.

In Fig. 4 the brush head basic element 10 is pushed onto the brush handle 1 at its first end 3, the first end face 36 of the brush head basic element 10 being oriented towards the first end 3 of the brush handle 1. The connecting protuberance 5 of the brush handle 1 is pushed into the connecting recess 13 of the brush head base element 10. At the same time, the brush handle locking element 4 comes into engagement with the bristle carrier locking element 12. The locking recess 6 and the locking projection 14 engage behind one another so that a locking connection unit 37 is formed with the brush handle locking element 4 and the bristle carrier locking element 12 by locking the locking recess 6 and the locking projection 14. The locking connection formed with the locking connection unit 37 cannot be released without being destroyed.

In addition, the brush handle guide surface 8 and the brush head guide surface 16 lie against one another. This ensures guidance between the brush handle 1 and the brush head base element 10, which here runs parallel to a brush longitudinal axis 18 due to the alignment of the brush handle guide surface 8 and the brush head guide surface 16. The brush head base element 10 can only be pushed onto the brush handle 1 and, if necessary, pulled off the brush handle 1 again, parallel to the longitudinal axis 18 of the brush. At right angles to the longitudinal axis 18 of the brush, the brush head basic element 10 has no degree of freedom or at least only a small amount of play with respect to the brush handle 1. Since the brush handle guide surface 8 and the brush head guide surface 16 have an approximately rectangular shape in a cross section perpendicular to the brush longitudinal axis 18, the brush head base element 10 also has no degree of freedom of rotation or at least only a small amount of play in the direction of rotation compared to the brush handle 1 Brush longitudinal axis 18.

While the locking connection formed in the locking connection unit 37 between the brush handle locking element 4 and the bristle carrier locking element 23 prevents the brush head base element 10 from being pulled off the brush handle 1 along the brush longitudinal axis 18, the guidance between the brush handle guide surface 8 and the Brush head guide surface 16 thus a seat of the brush head basic element 10 on the brush handle 1 that is secured against kinking and twisting.

Fig. 5 shows a paintbrush 19. The brush handle 1 and the brush head basic element 10 correspond to the brush handle 1 and the brush head basic element 10 Fig. 5 . In addition, the paintbrush 19 has bristles 20 which are arranged on the bristle carrier 11. The order the bristles 20 on the bristle carrier 11 is only shown schematically here. A brush head 21 is formed with the brush head base element 10 and the bristles 20.

The paintbrush 19 has an appearance very similar to a paintbrush of the prior art. The ferrule 15, which is arranged in the traditional manner between the brush handle 1 and the bristles 20, contributes in particular to this. Instead of the bristles being inserted into the clamp as in the case of prior art brushes and the clamp being latched to the brush handle, the clamp 15 according to the invention is free of these functions. According to the invention, the bristles 20 are held on or in the bristle carrier 11 and the bristle carrier 11 is also locked to the brush handle 1. The ferrule 15 thus freed on the one hand fulfills the optical function of making the paintbrush 19 appear similar to a conventional paintbrush, which may be preferred by conservative users. On the other hand, the clamp 18 also forms the brush head guide surface 16.

The bristles 20 can be bent into a U-shape. Here, bristle tips 33, of which each bristle 20 has two, are arranged largely flush. If the bristles are not bent in a U-shape, then they can each have only one bristle tip 33. The bristle tips 33 form that part of the paintbrush 19 which comes into contact with a surface to be painted during normal use of the paintbrush 19.

The bristles 20 can be combined to form bristle bundles 24 (cf. Fig. 7 ). Then a tip end 34 is formed with the bristle tips 33 for each bristle bundle 24, in which the bristle tips 33 are arranged. Opposite the tip end 34 is a bent end on the bristle bundle 24 (not shown here because it is covered by the bristle carrier 11). The end of the bend is where the bristles 20 are bent in a U-shape. The bristle bundle 24 has a length 35 between the tip end 34 and the bent end.

It is also indicated here that the bristle tips 33 are not flush, but that a rounded bristle level is implemented with the tip ends 11 here.

Fig. 6 shows a brush head basic element 10 according to the invention in a perspective view obliquely from above. It can be seen that the clamp 15 is arranged circumferentially around the bristle carrier 11. The clamp is provided here with several decorative elements 32, such as beads 32a, 32c. The decorative elements 32, in particular if they are designed as beads 32a, 32c, can have a structural, for example a stabilizing function. The decorative elements 32 can, however, also have a purely decorative function, for example to make the clamp 15, in particular a clamp 15 formed in one piece with the bristle carrier 11, appear optically like a clamp of the prior art, which is typically formed from a sheet metal or a plastic strip and has beads for stabilization.

A bristle carrier surface 22 is mainly exposed here from the bristle carrier 11. The bristle carrier surface 22 is arched, here arched approximately in the shape of a barrel. An arrangement of recesses 23 in rows in the bristle carrier surface is sketched schematically.

In Fig. 7 it is shown how the bristles 20 can be arranged on and in the bristle carrier 11. A front view is shown ( Fig. 7 (a) ) and a side view ( Fig. 7 (b) ) onto the bristle carrier 11 with the bristles 20. The bristles are combined in bristle bundles 24. Each bristle bundle 24 is arranged in a recess 23, in particular with its bent end. If the recesses 23 according to Fig. 6 are arranged in rows, the bristle bundles 24 are thus also arranged in rows. The bristle bundles 24 are shown schematically here.

In the Fig. 7 (b) The five visible bristle bundles 24 each symbolize a row of the bristle bundles 24. All further bristle bundles 24 of the respective row are covered by the visible bristle bundle 24. The opposite is the case in the front view Fig. 7 (a) only a row of the bristle bundles 24 can be seen. All further rows are covered by the visible bundles of bristles 24.

The bristle bundles 24 and thus also the bristles 20 do not run parallel in themselves. Instead, the bristle bundles 24 run at angles to one another. The brush longitudinal axis 18 runs parallel to the brush handle 1 and to at least one bristle bundle 24. This is usually a bristle bundle 24 which is arranged in a center point or in a central region 25 of the bristle carrier 11 located in the area of the center point. However, it may be that the brush longitudinal axis 18 only runs parallel to the brush handle 1 and is not parallel to any bristle bundle 24 or, conversely, that the brush longitudinal axis 18 is parallel to a bristle bundle 24, but the brush handle 1 is at an angle. The brush longitudinal axis 18 normally runs parallel to side walls of the ferrule 15 or parallel to an extension of the bristle carrier 11 between the brush handle 1 and the Bristles 20. Reproductions of the longitudinal axis 18 of the brush that are displaced in parallel are marked here with 18 ', 18 ", 18"', 18 "".

A first bristle bundle 24, here a bristle bundle, which is arranged in the central region 25 of the paintbrush 19, has a first angle 26 of 0 ° to the longitudinal axis 18 of the brush. A second bundle of bristles 24, which is here arranged farthest from the central region 25, has a second angle 27 to the longitudinal axis 18 ″ of the brush, which is greater than the first angle 26. The bundles of bristles 24 arranged between the first and second bundles of bristles 24 also have angles to the brush longitudinal axis 18. The example shows a third angle 28 to the brush longitudinal axis 18 ', which is made by a third bristle bundle 24, which is arranged between the first bristle bundle 24 and the second bristle bundle 24. The third angle 28 is greater than the first angle 26, but smaller than the second angle 27. The angles at which the bristle bundles 24 are arranged relative to the longitudinal axis 18 of the brush increase the further the respective bristle bundle 24 is arranged from the central region 25 of the bristle carrier 11.

The same behavior is also in the side view after Fig. 7 (b) Observe: A first bundle of bristles 24, which is arranged in the central region 25, has an angle 29 of 0 ° to the longitudinal axis 18 of the brush. A second bundle of bristles 24, removed from the central area 25 in the direction of an edge of the bristle carrier 11, has a second angle 30 to the longitudinal axis 18 '''of the brush, which is greater than the first angle 29, and a third bundle of bristles 24, which extends from the central area 25 is furthest away, has a third angle 31 to the longitudinal axis 18 ″ ″ of the brush, which is greater than the first and the second angle 29, 30.

The angles 26-31 of the bundles of bristles 24 thus increase with increasing distance from the central region 25. The angles 26-31 also overlap because individual bristle bundles 24 are both angled as in FIG Fig. 7 (a) shown as well as angled as in Fig. 7 (b) shown.

The tip ends 34 of all bristle bundles 24 and thus the bristle tips 33 in the Fig. 7 (a), 7 (b) Bristles 20, not shown individually, are flush.

Around a rounded level of bristles Fig. 6 To achieve this, the recesses 23 can be approximately the same depth and have an angle 26-31, as described above, to the longitudinal axis 18 of the brush. Because the bristle bundles 24 are of equal length, the fact that they In the convex curvature of the bristle carrier surface 22, the following, equally deep recesses 23 are used, in combination with the fact that the recesses 23 have increasing angles with respect to the longitudinal axis 18 of the brush with the distance from the central region 25, so that the rounded bristle surface is created.

REFERENCE LIST

1

Brush handle

2

Grip area

3

The End

4th

Brush handle locking element

5

Connecting protuberance

6

Detent return

7th

paragraph

8th

Brush handle guide surface

9

Outside guide surface

10

Brush head basic element

11

Bristle carrier

12

Bristle carrier locking element

13

Connection recess

14th

Locking projection

15th

ferrule

16

Brush head guide surface

17th

Inside guide surface

18th

Brush longitudinal axis

19th

Paintbrush

20th

Bristles

21st

Brush head

22nd

Bristle carrier surface

23

Recess

24

Bristle bundles

25th

Central area

26th

angle

27

angle

28

angle

29

angle

30th

angle

31

angle

32

Decorative element

33

Bristle tip

34

Top end

35

Length section

36

Face

37

Snap connection unit

Claims (14)

Paintbrush (19) with a brush handle (1), a bristle carrier (11), a ferrule (15) and a brush longitudinal axis (18), wherein
the brush handle (1) has a brush handle latching element (4) at a first end (3),
the bristle carrier (11) has a bristle carrier locking element (12) on a first end face (36), so that the bristle carrier (11) can be locked to the brush handle (1),
the bristle carrier (11) has a plurality of bristles (20) and a plurality of bristle bundles (24) formed from the bristles (20),
the bristle carrier (11) has recesses (23) in each of which a bristle bundle (24) is held,
the bristles (20) and the bristle bundles (24) are attached to the bristle carrier (11) without glue, and
the ferrule (15) at least partially surrounds the bristle carrier (11) with regard to its extension along the longitudinal axis (18) of the brush and is designed in one piece with the bristle carrier (11). Paintbrush (19) according to Claim 1, characterized in that the clamp (15) completely surrounds the bristle carrier (11) in its extension along the longitudinal axis (18) of the brush. Paintbrush (19) according to Claim 1 or 2, characterized in that the bristle carrier (11) has a convexly curved bristle carrier surface (22). Paintbrush (19) according to at least one of the preceding claims, characterized in that the bristles (20) and / or the bristle bundles (24) are bent in a U-shape. Painting brush (19) according to at least one of the preceding claims, characterized in that the bristles (20) and / or the bristle bundles (24) bristle tips (33), a tip end (34) formed from the bristle tips (33), an opposite bent end and have a length section (35) arranged between the tip end (34) and the bending end, wherein adjacent bristles (20) and / or bristle bundles (24) touch in a partial area of their length sections (35). Paintbrush (19) according to Claim 5, characterized in that the bent end is fastened in each case in one of the recesses (23). Paintbrush (19) according to claim 4 and 5, characterized by a plurality of anchoring wires, the bristle bundles (24) being fastened in the bristle carrier (11) by an anchoring wire being guided through the U-shaped bend of the bristle bundles (24) and in the bristle carrier (11) is anchored. Paintbrush (19) according to at least one of the preceding claims, characterized in that some of the recesses (23) have an angle (27, 28, 30, 31) deviating from 0 ° to the longitudinal axis (18) of the brush. Paintbrush (19) according to at least one of the preceding claims, characterized in that the brush handle (1) and the bristle carrier (11) are not designed to be detachable from one another without being destroyed. Paintbrush (19) according to at least one of the preceding claims, characterized in that the bristle carrier (11) and the bristles (20) consist of plastic, in particular of recycled plastic. Paintbrush (19) according to at least one of the preceding claims, characterized in that the brush handle locking element (4) has a connecting protuberance (5) and the bristle carrier locking element (12) has a connecting recess (13). Brush head basic element (10) for a paintbrush (19), in particular for a paintbrush (19) according to at least one of the preceding claims, with a bristle carrier (11), a ferrule (15) and a brush longitudinal axis (18), wherein
the bristle carrier (11) has a bristle carrier locking element (12) on a first end face (36), so that the bristle carrier (11) can be locked to a brush handle (1),
the bristle carrier (11) has a plurality of bristles (20) and a plurality of bristle bundles (24) formed from the bristles (20),
the bristle carrier (11) has recesses (23) in each of which a bristle bundle (24) is held,
the bristles (20) and the bristle bundles (24) are attached to the bristle carrier (11) without glue, and
the ferrule (15) at least partially surrounds the bristle carrier (11) with regard to its extension along the longitudinal axis (18) of the brush and is designed in one piece with the bristle carrier (11). Brush head base element (10) according to claim 12, characterized in that at least one of the features of claims 1 to 11 is also present. Brush head basic element (10) according to Claim 12 or 13, characterized by a brush head guide surface (16) which is formed circumferentially on the clamp (15).

Images