Patent Application
20220007827
The invention concerns an interchangeable cosmetic brush with a base body of substantially cylindrical form, on the end face of which brush bristles are arranged. The invention furthermore concerns a cosmetic brush device with a brush casing for insertion of an interchangeable cosmetic brush.
Cosmetic brushes differ greatly in size, shape and function, for which reason a plurality of different brush types may be used in a typical make-up application. Normally, cosmetic brushes have a single brush head, so three different functions in the application of make-up require the use of three separate cosmetic brushes. Some cosmetic brushes also have relatively bulky brush heads. Because of the delicate brush bristles, therefore, particular requirements are imposed on the storage and transport of these bushes. In the attempt to accommodate a large number of cosmetic brushes, a container, for example a sponge bag, is relatively large.
In particular on journeys and when travelling, cosmetic brushes must be transported compactly, and the delicate brush bristles must be protected as far as possible from all external influences. On the other hand, the make-up residue remaining in the brush head must not soil or dampen the container or surrounding transport goods.
From the prior art, various cosmetic brush devices are known for protecting the delicate brush bristles between uses and during transport of the cosmetic brush.
For easier transport and protection of cosmetic brushes, so-called brush mats are known. These can easily be rolled up and several brushes fitted in simultaneously. The brushes are placed in compartments provided for this and the mat is then rolled up. Because of its flexibility however, the brush mat does not offer adequate mechanical protection for the brush heads. Also, the brush heads must be dry before they can be stowed in the brush mat.
Also, brush boxes of rigid materials are known for storage of individual or a plurality of cosmetic brushes. These usually cylindrical cosmetic brush holders can be split into two separate parts, each of which may serve as a cup-shaped holder for the cosmetic brush. When the two parts are assembled however, the problem arises that the upper part must be pushed over the delicate brush heads (against the direction of the brush bristles). Often, the brush bristles are bent and the brush head thus damaged. Brush boxes also do not offer any possibility of fixing the cosmetic brush during movement. If the brush box is placed upside down, a cosmetic brush located therein also stands on its brush bristles, which also leads to damage to the brush head.
On this basis, according to the invention, an interchangeable cosmetic brush is disclosed herein, including advantageous refinements.
Firstly, some terminology is explained:
A brush is a tool for applying liquid or powdery substances, such as for example powder. The term “cosmetic brush” is a collective term for all brushes which are used in beauty care for women or men. Brushes usually consist of three parts, namely the brush bristles forming the brush head, the handle, and a so-called clip which connects the handle and brush bristles together. The present invention refers to brush bristles which are arranged on a base body, wherein the base body may comprise both the handle and also a clip.
Cosmetic brushes include for example powder brushes, eyeshadow brushes, eyeliner brushes, make-up brushes, blender brushes, outlining brushes and shaving brushes. All these brushes have brush bristles which may be made for example from pony hair, natural hair, synthetic nylon hair or horsehair, and form a relatively bulky brush head. In cosmetic brushes, the circumference of the brush head is often greater than the circumference of the handle.
The term “cosmetic brush device” includes both devices in which cosmetic brushes can be stored or stowed, and those which can be used together with the cosmetic brushes for application. For example, a cosmetic brush device and an interchangeable cosmetic brush may be connected together such that the cosmetic brush device forms the handle of the cosmetic brush.
According to the invention, the base body has a guide pin protruding in the radial direction. The guide pin is provided to bring the cosmetic brush into active connection with the cosmetic brush device. The cylindrical base body may thus be introduced into or removed from a cosmetic brush device axially with a predefined orientation. The cosmetic brush device may for example be a hollow cylindrical (brush) casing. By rotating the base body about its own axis, the guide pin may be latched into devices provided for it. The guide pin may engage in a guide provided in the brush casing and latch in an established position so that, viewed in cross-section, the round base body is connected stationarily and rotationally fixedly to the cosmetic brush device. The base body is thus brought into a lockable or releasable and movable engagement with the cosmetic brush device by means of the guide pin.
Preferably, the guide pin is configured for engagement in a guide groove of a cosmetic brush device. In this embodiment, by the engagement of the guide pin in the guide groove, the entire interchangeable cosmetic brush may be moved along the guide groove of the cosmetic brush device. The base body can be inserted completely, i.e. with its cross-section and/or its height for example, in a protective sleeve/brush casing. The insertion of the guide pin in the groove prevents twisting of the interchangeable cosmetic brush in the brush casing. Via the guide pin, the cosmetic brush is guided in the interior of the brush casing.
The guide pin may additionally comprise a control portion at an end facing away from the base body. Preferably, the length of the guide pin between the base body and the control portion corresponds at least to the wall thickness of the brush casing. The guide pin and/or the control portion thus protrudes through the guide groove. The control portion may protrude relative to the brush casing when the guide pin is in engagement with the guide groove. This allows simple (manual) guidance of the interchangeable cosmetic brush in the cosmetic brush device by a user. The control portion essentially has the function of improving handling of the cosmetic brush and preventing accidental slipping or release of the connection to a cosmetic brush device. An operator for example uses his or her thumb to guide the cosmetic brush via the control portion. Because the control portion protrudes through the guide groove, a user is able to reach the control portion when the interchangeable cosmetic brush is fully inserted in the cosmetic brush device. For this, the control portion may preferably have a significantly larger cross-section than the guide groove, and/or a non-slip profile. Preferably, the control portion is configured as a flat cylindrical control element which is arranged centrally on the end of the guide pin. In this embodiment, the base body may be moved equally easily in each direction via the control element.
In an advantageous embodiment of the cosmetic brush, an axially displaceable protective sleeve is arranged on the base body. The protective sleeve can move in the axial direction and hence in the direction of the brush bristles, and serves as protection for the brush head. The protective sleeve also has the effect that it prevents liquid make-up from dripping down. Preferably, the protective sleeve has a substantially hollow cylindrical form with an outer diameter which is smaller than the base body, and is arranged concentrically to the base body. The shape of the brush head may also be adjusted by the position of the protective sleeve.
It is advantageous if the protective sleeve is movable reversibly between a first position in which the protective sleeve surrounds the brush bristles, and a second position in which the protective sleeve exposes the brush bristles. In the first position, the brush bristles are completely received in the protective sleeve and thus protected from external influences, in particular from bending. In this position, the brush bristles can be pressed together easily and evenly. If the protective sleeve is in the first position, for example a cover can be pushed from above over the protective sleeve without the risk of damaging the brush bristles. In the second position, the brush head may be used as intended. It is also possible to vary the shape of the brush head via e.g. intermediate positions which can be set steplessly or in steps.
The invention furthermore concerns a cosmetic brush device, in particular for stowage and use of an interchangeable cosmetic brush. The cosmetic brush device has a brush casing for connection of an interchangeable cosmetic brush as described above. The brush casing has a substantially hollow cylindrical form in which a guide groove is provided which extends in the axial direction. The guide groove serves to guide the guide pin of the interchangeable cosmetic brush. The brush casing may thus be connected to the interchangeable cosmetic brush only in a predefined orientation, namely when the guide groove has the same orientation as the guide pin. The guide groove also excludes an (undesired) twisting of the cosmetic brush in the cosmetic brush device. The guide groove preferably extends over the entire length of the brush casing. In this way, the cosmetic brush device guarantees that the interchangeable cosmetic brush can only be removed in a fixedly predefined orientation.
Along its longitudinal extent, the guide groove may have at least one latching channel extending in the radial direction, wherein the latching channel is preferably L-shaped. The latching channel serves as a latching possibility for a guide pin of a cosmetic brush. The latching channel may run substantially horizontally and hence perpendicularly to the guide groove, and at the end be bent over for example in an L-shape, for example parallel to the guide groove. The L-shaped latching channel reduces the risk of unintentional release of the cosmetic brush.
In an advantageous embodiment of the cosmetic brush device according to the invention, the guide groove provides latching possibilities for a guide pin of an interchangeable cosmetic brush in a usage position and in a stowage position. A latching possibility means any device which allows locking or fixing of the cosmetic brush, including in particular also magnetic locking or clamping. The cosmetic brush device may in principle fulfil two functions. Firstly, an interchangeable cosmetic brush may be completely received therein. Secondly, the brush casing may be used as a handle for a cosmetic brush. In the latter case, the base body of the cosmetic brush may be relatively small. In both cases, the guide pin of the cosmetic brush protruding from the base body is in engagement with the guide groove of the brush casing. When the cosmetic brush is inserted from above into the brush casing, it can be guided along the brush casing via the guide groove and leave the brush casing again along the guide groove. The cosmetic brush may thus be transferred from a usage position to a stowage position, and from the stowage position removed from the cosmetic brush device. The cosmetic brush should here always be moved against the direction of the bristles in order to avoid damage to the brush head.
In an advantageous embodiment of the invention, a cosmetic brush according to the invention is inserted in the cosmetic brush device, wherein the guide pin of the cosmetic brush is in engagement with the guide groove of the brush casing.
Preferably, the inner diameter of the brush casing substantially corresponds to an outer diameter of the base body of the cosmetic brush. In this way, the cosmetic brush is fixed in the radial direction inside the brush casing. Alternatively or additionally, the width of the guide groove may substantially correspond to a diameter of the guide pin. These embodiments allow as little play as possible between the brush casing and the interchangeable cosmetic brush. The cosmetic brush is thus always in an upright attitude with respect to the axial direction of the brush casing, which constitutes maximum protection for the delicate brush bristles.
Preferably, the guide groove has a plurality of latching channels or latching possibilities which are provided along the guide groove at different sites in the brush casing. Correspondingly, the shape of the brush head varies according to the insertion depth of the cosmetic brush in the brush casing. Differently shaped brush heads allow different functions in the application of make-up.
In an advantageous embodiment, the brush casing is configured such that it completely receives the base body and the brush bristles of the cosmetic brush, preferably of several cosmetic brushes. It is particularly important that the brush head is completely received in the brush casing in order to protect the delicate brush bristles from external influences. In the case of several cosmetic brushes, a corresponding distance must be provided between the cosmetic brushes in order to protect the brush bristles from the base bodies of adjacent interchangeable cosmetic brushes.
The cosmetic brush device may additionally have an upper and/or a lower cover element for pushing onto the brush casing. An upper and lower cover element seal the hollow cylindrical brush casing so that it can easily be transported. In addition, an inwardly protruding pin may be arranged on an inside of the cover element which, when the cover element is applied, engages in the guide groove of the brush casing and allows a mechanical locking between the cover element and the brush casing. The pin of the cover element may thus for example engage in a corresponding latching device by twisting of the cover element. The cover element is thus better protected from unintentional release. Preferably, in addition a sponge or similar is inserted in a cover element. Sponges are also used for spreading make-up or powder.
In a preferred embodiment of the invention, the cosmetic brush device comprises three interchangeable cosmetic brushes which are stowed in the brush casing; preferably, the cosmetic brushes have differently configured brush heads. This embodiment allows three different cosmetic brushes to be transported safely and compactly with a single transport device. The cosmetic brush device may be flexibly fitted with different cosmetic brushes. It is also possible to exchange individual cosmetic brushes.
The invention is now described as an example below with reference to the appended figures and according to advantageous embodiments.
The cosmetic brush device 30 comprises a brush casing 32 for insertion of at least one interchangeable cosmetic brush 20. The brush casing 32 has a substantially hollow cylindrical form with a guide groove 34 extending in the axial direction. The guide groove 34 extends over the entire length of the brush casing 32. In the embodiment shown, the guide groove runs rectilinearly. The guide groove 34 extends effectively as a longitudinal slot between two opposing end faces of the tubular brush casing 32.
The guide groove 34 has several latching channels 35a, 35b, 35c, 35d at different positions along the longitudinal extent. In the exemplary embodiment shown, the latching channels 35a, 35b, 35c, 35d are formed substantially identically, but this is not obligatory. The latching channel 35a, 35b, 35c, 35d extends from the guide groove 34 as a branch initially vertically and then downward in a direction parallel to the guide groove 34.
On the right-hand side of
The base body 22 of the cosmetic brush 20a, 20b, 20c has a guide pin 28 protruding in the radial direction. This is superposed with a control portion 28a in the illustration of
The cosmetic brush 20a shown at the top right in
In
In order to use the cosmetic device 30 shown in
It should be ensured that the cosmetic brushes 20a, 20b, 20c are always moved through the brush casing 32 against the brush bristle direction, i.e. with the base body 22 first. After use of a cosmetic brush 20a, 20b, 20c, this is released from the latching position and may then be removed from the brush casing 32. The cosmetic brush device 30 may then be assembled either such that another cosmetic brush 20a, 20b, 20c is used, or the cosmetic brushes 20a, 20b, 20c are again stowed in the brush casing 32 so as to be transportable.
The cosmetic brush device 30 described above has a high degree of flexibility and versatility, since the individual cosmetic brushes 20a, 20b, 20c may be replaced and exchanged arbitrarily.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2018 123 848.7 | Sep 2018 | DE | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2019/075913 | 9/25/2019 | WO | 00 |
