Body care agent, in particular oral hygiene agent

Abstract

The invention relates to a body care agent, in particular an oral hygiene agent, comprising at least one application unit (12a-f), at least one handle unit (14a; 14b; 14c; 14f), and at least one functional unit (16a-e) which is arranged on the application unit (12a-f) and / or the handle unit (14a; 14b; 14c; 14f). According to the invention, the at least one functional unit (16a-f) has at least one mechanical switching element (18a, 18a', 18a'', 18a''', 18a''''; 18b; 18c; 18d; 18e; 18f), in particular a single-part switching element, which consists of an elastic material and which has at least two defined static states that differ from each other.

Description

[0001] Personal care products, in particular an oral hygiene product

[0002] State of the art

[0003] The invention relates to a personal care product, in particular an oral hygiene product, preferably a toothbrush.

[0004] An oral hygiene product, in particular a toothbrush, with at least one application unit, with at least one handle unit and with at least one functional unit which is arranged on the application unit and / or the handle unit has already been proposed.

[0005] The object of the invention is, in particular, to provide a generic device with improved properties with regard to functionality and / or comfort and / or cleaning results. This object is achieved according to the invention by the features of patent claims 1 and 21, while advantageous embodiments and further developments of the invention can be found in the subclaims.

[0006] Advantages of the invention

[0007] The invention is based on a personal care product, in particular an oral hygiene product, preferably a toothbrush, with at least one application unit, with at least one handle unit and with at least one functional unit which is arranged on the application unit and / or the handle unit.

[0008] It is proposed that the at least one functional unit has at least one, in particular one-piece, mechanical switching element which consists of an elastic material and which has at least two defined static, different states. The functional unit can in particular have various functions, such as, among others, a cleaning function, an information function, a protection function, a counting function, a reminder function, a design function, an animation function, a reservoir function, a comfort function, such as in particular a gripping function, a handling function and / or an employment function. Preferably, the functional unit is arranged on the application unit or on the gripping unit. However, it would also be conceivable for a plurality of functional units to be provided, with one functional unit being arranged on the application unit and one functional unit on the handle unit.When arranged on the handle unit, the functional unit preferably forms a functional part of the handle unit. When arranged on the application unit, the functional unit preferably forms a functional part of the application unit. The functional unit is preferably arranged fixedly, in particular captively, on the handle unit and / or the application unit, in particular on a carrier body of the handle unit and / or the application unit. The switching element preferably consists of a soft component; alternatively, materials for injection-molded bristles or, at most, individual thin-walled hard components are also possible.Preferably, the switching element can be moved from one static state to the other static state by an operator manually or with a simple aid, wherein the switching element preferably jumps into the respective static state automatically when approaching the respective static state. Preferably, the switching element has a function for the actual application and / or an additional function. For example, the switching element can create a play element, for example for a child's toothbrush. Alternatively, the function of the switching element can be used for a non-playful application, e.g. as a clamping element. The switching element can also perform several of the listed functions.

[0009] The handle unit and / or the application unit preferably has a carrier body which is provided for a direct connection of the at least one switching element. The carrier body is formed in particular by a base body of the handle unit and / or by a base body of the application unit. The carrier body is preferably rigid so that it can form the basis for the switching element. The carrier body consists in particular of a hard component. The carrier body is preferably arranged at least partially around the switching element. The design of the personal care or oral hygiene product according to the invention can provide advantageous properties with regard to the functionality of the personal care or oral hygiene product. In particular, the switching element can be used to switch back and forth between different functions or at least one function can be switched on.Preferably, a function can be assigned to each static state. Furthermore, an advantageously high level of comfort can be provided. Furthermore, a cleaning result can be positively influenced. In particular, an adjustable switching element can be provided which has at least two fixed positions or end positions, each of which forms a state of equilibrium. Between the states of equilibrium there are, in particular, transitional states, each of which forms intermediate positions. The transitional states are not stable, and the switching element switches to one or the other equilibrium state without any significant load. The equilibrium states are each located along a movement vector in one or the other direction.

[0010] An “oral hygiene product” is understood to mean, in particular, a toothbrush and / or an interdental cleaner and / or a flosser and / or a tongue cleaner and / or a toothpick. Advantageously, the oral hygiene product is designed as a toothbrush, in particular a manual toothbrush, preferably a children’s or adult toothbrush, advantageously a purely manual toothbrush. In particular, the oral hygiene product is different from an electric toothbrush. The oral hygiene product can be a disposable toothbrush, a reusable toothbrush, or even a replaceable-head toothbrush. However, the personal care product could also generally be a brush product. A “brush product” is understood to mean, in particular, an oral hygiene brush and / or a cosmetic brush and / or a hairbrush and / or a household brush.Examples of oral hygiene brushes include manual toothbrushes such as reusable, replaceable-head, disposable, or single-tuft brushes; electric toothbrushes, hybrid toothbrushes; and interdental cleaners, particularly those with twisted bristles (also called interdental brushes), in injection-molded form or as flossers and / or tongue cleaners. Examples of personal care or cosmetic brushes include mascara brushes, nail polish brushes, facial brushes, applicators, especially hair dye applicators, massagers, makeup brushes, shaving brushes, and / or wet razors, or other personal care products. Examples of household brushes include dishwashing brushes, floor mops, and / or brooms. Consequently, the statements regarding oral hygiene products also apply to the aforementioned personal care products.

[0011] The oral hygiene device has, in particular, a longitudinal axis, which is advantageously arranged at least substantially parallel to a main direction of extension of the oral hygiene device. The longitudinal axis preferably runs at least partially within the oral hygiene device and, in particular, through its center of gravity. In particular, the longitudinal axis of the oral hygiene device is a central axis of the oral hygiene device and / or a central axis of the handle unit. A "central axis" of an object is understood, in particular, to mean an imaginary axis that runs within the object parallel to a main direction of extension of the object and intersects the object at a maximum of two points.By “at least substantially parallel” is meant in particular an orientation of a direction relative to a reference direction, in particular in a plane, wherein the direction has a deviation from the reference direction of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°. A “main extension direction” of an object is meant in particular a direction which runs parallel to a longest edge of a smallest imaginary cuboid which just completely encloses the object. A “main extension” of an object in this context is meant in particular an extension of a longest edge of a smallest imaginary cuboid which just completely encloses the object.

[0012] In particular, the oral hygiene product has a length, in particular parallel to the longitudinal axis of the oral hygiene product, of at least 110 mm, advantageously of at least 130 mm and particularly advantageously of at least 150 mm and / or of at most 200 mm, advantageously of at most 190 mm and particularly advantageously of at most 180 mm, although other, in particular smaller or larger, lengths are of course also conceivable. In particular, the oral hygiene product has a maximum width, in particular parallel to a width axis of the oral hygiene product, advantageously perpendicular to the longitudinal axis and / or parallel to a main extension plane of the oral hygiene product and / or the handle unit, of at least 15 mm, advantageously of at least 20 mm and particularly advantageously of at least 23 mm and / or of at most 40 mm, advantageously of at most 35 mm and particularly advantageously of at most 31 mm.In particular, the oral hygiene product has a maximum height, in particular measured parallel to a height axis of the oral hygiene product, advantageously measured perpendicular to the longitudinal axis of the oral hygiene product and / or perpendicular to the main extension plane of the oral hygiene product, of at least 10 mm, advantageously of at least 12 mm and particularly advantageously of at least 15 mm and / or of at most 30 mm, advantageously of at most 26 mm and particularly advantageously of at most 23 mm. The term "height" here refers in particular to a state of the oral hygiene product in which it is placed, for example, on a surface such as a tabletop, a sink, the top of a piece of furniture or the like, in particular such that the longitudinal axis is arranged parallel to the surface.A “main extension plane” of an object is to be understood in particular as a plane which is parallel to a largest side surface of a smallest imaginary cuboid which just completely encloses the object and in particular runs through the center of the cuboid.

[0013] The application unit advantageously has at least one cleaning area, which is intended for a tooth and / or tongue cleaning application, in particular in the user's oral cavity. The cleaning area preferably comprises at least one cleaning unit, in particular at least one brush head, advantageously a toothbrush head, preferably with a plurality of bristles and / or bristle bundles and / or injected cleaning elements or injected bristles and / or soft-elastic cleaning elements. However, the cleaning unit can also be designed, for example, as an interdental brush and / or as a single tuft (e.g., a single large bristle bundle) and / or as a bow covered with dental floss, in particular as a flosser, or the like. Furthermore, the application unit advantageously has at least the neck element, which is preferably connected to the cleaning area, in particular directly and / or integrally.“Integral” should be understood in particular to mean at least materially connected, for example by a welding process, an adhesive process, an injection molding process and / or another process that appears appropriate to a person skilled in the art, and / or advantageously formed in one piece, such as by production from a single casting and / or by production using a single or multi-component injection molding process and advantageously from a single blank. “Intended” should be understood in particular to mean specially designed and / or equipped. The fact that an object is intended for a specific function should be understood in particular to mean that the object fulfills and / or performs this specific function in at least one application and / or operating state.

[0014] The oral hygiene product has, in particular, a front side and a back side, which are arranged, in particular, facing away from one another. The cleaning area is preferably arranged on the front side of the oral hygiene product. The front side is, in particular, a side of the oral hygiene product that is visible in a viewing direction perpendicular to the longitudinal axis of the oral hygiene product and perpendicular to the width axis of the oral hygiene product. The front side of the oral hygiene product is, in particular, that side of the brush on which the thumb is placed. The front side is normally also the side toward which the bristle field is directed. The back side advantageously corresponds to a side of the oral hygiene product that is visible in a viewing direction opposite thereto. The back side of the oral hygiene product is the side of the toothbrush opposite the bristle field.The left side of the oral hygiene device is specifically referred to as a side that is on the left when viewed perpendicularly from the front of the oral hygiene device. The right side of the oral hygiene device is specifically referred to as a side that is on the right when viewed perpendicularly from the front of the oral hygiene device. The top side is specifically referred to as an end of the oral hygiene device at which the cleaning area is located. The bottom side is specifically referred to as an end of the oral hygiene device opposite the top side and closest to the handle area.

[0015] The handle unit preferably has at least one handle element, which is advantageously intended to be held with one hand. The handle element is preferably tapered at least in some regions. This advantageously allows a secure hold and optimizes ergonomics. The handle element is particularly preferably elongated, with a longitudinal axis of the handle element advantageously corresponding to the longitudinal axis of the oral hygiene product. The handle element is formed at least partially, in particular completely, from at least one hard component. It would also be conceivable for the handle element to additionally be formed from one or more soft components. The material volume body is preferably formed at least largely, in particular completely, from at least one hard component. In particular, the handle element advantageously comprises at least one thumb grip region and / or at least one hand grip region.Advantageously, the thumb grip area is arranged on the front side of the oral hygiene device, and in particular on a front side of the handle element. It is conceivable that the thumb grip area and / or the handle area comprise at least one element and / or a surface structure made of at least one soft component and / or at least one hard component.

[0016] The grip region advantageously has at least one handle element. A main extension direction of the handle element is preferably arranged at least substantially parallel to the longitudinal axis of the oral hygiene device. The handle element advantageously has at least one surface structure element, particularly advantageously a plurality of surface structure elements, which are at least substantially identical or at least geometrically similar to the above-described surface structure elements of the thumb grip region. The surface structure elements of the handle element are preferably arranged, in particular at least in pairs, one behind the other, grouped along the longitudinal axis of the oral hygiene device.

[0017] The components used for production can be classified as follows:

[0018] • Conventional materials: Materials, essentially virgin materials, which are largely oil-based.

[0019] • Sustainable materials: as listed below and described later, preferably bio-based, degradable and / or recycled. o Bio-based materials: Material that is made from more than 40%, in particular more than 60%, preferably more than 80% and particularly preferably 100% renewable raw materials. Another possible additional property of bio-based materials is, in particular, that the bio-based materials are biodegradable. Preferably, the materials are not based on foodstuffs such as corn, sugar cane, etc. o Biodegradable materials: Material that is biodegradable according to current standards. This includes, in particular, compostability (industrial or non-industrial). Materials made from renewable raw materials, such as petrochemical raw materials, can have this property.o Recycled materials: Materials that come from a recycling process, such as post-consumer recycled materials, post-industrial recycled materials, ocean waste plastic or social plastic.

[0020] The materials used can be recyclable. Recyclable materials are preferably recycled after use. Materials that can be integrated into an existing recycling stream, such as polyester (PET), polyethylene (PE), and polypropylene (PP), are particularly preferred.

[0021] The materials used can be recycled. Materials from a recycling stream, such as polyester (rPET), polyethylene (rPE), and polypropylene (rPP), are particularly preferred.

[0022] Within the scope of this disclosure, virtually any hard component and soft component is possible, which the person skilled in the art will combine and / or select as appropriate. Examples of suitable hard components include styrene polymers such as styreneacrylonitrile (SAN), polystyrene (PS), acrylonitrile butadiene styrene (ABS), styrene methyl methacrylate (SMMA), styrene butadiene (SB), or the like. Furthermore, a hard component can comprise polyolefins such as polypropylene (PP), polyethylene (PE), or the like, in particular also in the form of high-density polyethylene (HDPE) or low-density polyethylene (LDPE). In addition, polyesters such as polyethylene terephthalate (PET), in particular in the form of acid-modified polyethylene terephthalate (PETA), glycol-modified polyethylene terephthalate (PETG), polybutylene terephthalate (PBT), acid-modified polycyclohexylenedimethylene terephthalate (PCT-A), glycol-modified polycyclohexylenedimethylene terephthalate (PCT-G) or the like are suitable.Furthermore, the use of cellulose derivatives such as cellulose acetate (CA), cellulose acetobutyrate (CAB), cellulose propionate (CP), cellulose acetate phthalate (CAP), cellulose butyrate (CB) or the like is conceivable. Furthermore, a hard component can comprise, for example, polyamides (PA) such as PA 6.6, PA 6.10, PA 6.12 or the like, polymethyl methacrylate (PMMA), polycarbonate (PC), polyoxymethylene (POM), polyvinyl chloride (PVC), polyurethane (PUR), polyamide (PA) or the like. In particular, polyethylene (PE) and / or polyurethane (PU) can be used as a hard component and / or as a soft component. In particular, a hard component has a modulus of elasticity of at least 1000 N / mm. 2 and advantageously of at least 1300 N / mm 2 and / or of not more than 2400 N / mm 2 and advantageously of a maximum of 1800 N / mm 2Polypropylene (PP) is preferred as the hard component. At least certain materials listed under the hard component can be sustainable. Materials with a cellulose content, in particular, are at least partially bio-based.

[0023] Hard components are advantageously used for stable and / or structurally supporting elements, in particular in the handle element and / or in a carrier element of the application unit and / or the fastening unit or the like. Preferably, the oral hygiene product or at least a base body of the oral hygiene product comprises a single hard component, which can be made from one of the materials mentioned or from a mixture thereof. However, combinations of different hard components are also conceivable, wherein these can be processed, for example, in a two- and / or multi-component injection molding process and / or glued and / or welded to one another, in particular ultrasonically welded. Alternatively or additionally, a plurality of hard components can be used which do not form a material bond in a two- and / or multi-component injection molding process.In particular, it is conceivable that in this case a positive connection, for example in the form of at least one undercut and / or at least one opening and / or at least an at least partial overmolding or the like, is created between hard components. In this case, it is conceivable that, for example, a second hard component, which is in particular injection-molded onto a first hard component, shrinks and / or shrinks after injection molding and advantageously forms a shrinkage connection. Suitable combinations can be, for example, polypropylene-polyester, polypropylene-sustainable material, polypropylene-styrene acrylonitrile, or other combinations. In this combination, polypropylene serves to create a material-to-material connection with the soft component.

[0024] Suitable soft components include, for example, thermoplastic styrene elastomers (TPE-S) such as a styrene-ethylene-butylene-styrene copolymer (SEBS), a styrene-butadiene-styrene copolymer (SBS), or the like. The use of thermoplastic polyurethane elastomers (TPE-U), thermoplastic polyamide elastomers (TPE-A), thermoplastic polyolefin elastomers (TPE-O), thermoplastic polyester elastomers (TPE-E), or the like is also conceivable. Furthermore, a soft component can comprise, for example, at least one silicone. Advantageously, a soft component has a Shore A hardness of at most 90, advantageously of at most 50, and particularly advantageously of at most 30. Preferably, at least one soft component forms at least one material bond with at least one hard component, in particular in at least one two- and / or multi-component injection molding, advantageously by means of at least one overmolding and / or insert molding.The materials mentioned under the soft component can be at least partially sustainable materials. The soft component can be a material mixture of sustainable material and a non-sustainable soft component. For example, the soft component can be a mixture of recycled polypropylene (rPP) and a soft component. Recycled polypropylene (rPP) can be a raw material for producing a soft component. The weight fraction of recycled polypropylene in the soft component is more than 10%, preferably more than 20%, particularly preferably more than 30%.

[0025] It is advantageously conceivable that a hard component used and a soft component used have different colors, so that surface structures, inscriptions, motifs and the like can be realized by means of a suitable design of the base body and the soft element.

[0026] It is further proposed that the at least one application unit has a brush head, in particular a toothbrush head. The application unit advantageously has at least one cleaning unit, in particular a toothbrush head, with bristles. The cleaning unit also advantageously has at least one bristle carrier, for example a brush head base body. At least some or all of the bristles are advantageously conventional extruded bristles. Bristles can in particular comprise at least one hard component and / or at least one soft component. Preferably, the bristles are made at least partially or completely from polyamide (PA) and / or polyester (PBT, PET), although any other materials (hard component or soft component) are conceivable, and sustainable materials such as chitosan are also possible. Furthermore, the bristles can be made from a degradable material.It is also conceivable for at least some of the bristles to have a tapered portion and / or a variable cross-section. The bristles are preferably made from a single, particularly mixed, material. However, bristles consisting of multiple components or materials are also conceivable, which can be produced and / or manufactured in particular by means of at least one coextrusion. The bristles can be produced and / or manufactured, for example, by extrusion, cutting to length and / or post-processing. In contrast to injected bristles or rubber-elastic massage and cleaning elements, which are manufactured by injection molding, conventional bristles are extruded, cut, processed and inserted or anchored to the toothbrush handle using an adapted process, such as the anchor punching process, the AFT process, the PTt process and / or the IMT process.

[0027] In particular, cylindrical or pointed bristles are suitable, with any cross-sections such as polygonal, triangular, rectangular, square, elliptical, star-shaped, trapezoidal, parallelogram-shaped, rhombus-shaped or any other cross-sections being conceivable. In particular, different bristles can be used in a bristle bundle, but also different bristle bundles, in particular each with a specific type of bristle. Bristles and / or bristle bundles can be arranged regularly or irregularly. In particular, bristles and / or bristle bundles arranged in groups and / or adjacently can differ with regard to at least one feature such as a length, a diameter, a material, a color, a material hardness, a geometry, a point and the like, in particular alternatingly.The bristles preferably have a diameter, in particular perpendicular to their longitudinal axis, of at least 0.075 mm and / or of at most 0.25 mm. Advantageously, the bristles have a cross-sectional area, in particular perpendicular to their longitudinal axis, of at least 0.002 mm. 2 and / or of a maximum of 0.2 mm 2 In the case of bristles used in the cosmetics sector, for example bristles of an additional application element, thinner bristles and / or bristles with a smaller cross-section can also be used, in particular bristles with a diameter, in particular perpendicular to their longitudinal axis, of at least 0.025 mm and / or of at most 0.2 mm and / or with a cross-sectional area, in particular perpendicular to their longitudinal axis, of at least 0.001 mm 2 and / or of a maximum of 0.15 mm 2In the case of tapered bristles, polyester (PBT, PET, or PTT) is a particularly suitable material, although sustainable materials are also possible, with the tapering being achieved mechanically and / or chemically. Other materials are also conceivable. The bristles are preferably straight in the longitudinal direction, but wavy, twisted, helical, and / or twisted bristles are also conceivable, as are, in particular, combinations of different bristles. Furthermore, bristles with a smooth surface are conceivable, as are bristles with a textured surface.

[0028] Furthermore, the bristles, in particular as bristle bundles, are preferably processed, in particular attached to the bristle carrier, by means of at least one anchor punching process, an anchor-free tufting process (AFT), an in-mold tufting process (IMT), a PTt process, or the like. The bristle carrier preferably has a plurality of bristle receptacles, in particular holes for bristle bundles, in particular drilled and / or formed during injection molding. In the case of anchor punching, it is conceivable, for example, that a base body, in particular from a hard component, preferably the brush head, is first manufactured by injection molding, wherein blind holes for bristle bundles are advantageously formed during injection molding. Of course, subsequent drilling of blind holes is also conceivable.Preferably, the bristles or bristle bundles are then folded and secured in a blind hole by means of at least one anchor, in particular by punching. Loop punching is also conceivable.

[0029] Alternatively, as mentioned, anchor-free processes are also conceivable, in which case bristles or bristle bundles are advantageously not folded. In this case, bristles or bristle bundles are approximately half the length compared to anchor punching. For example, it is conceivable that the bristle bundles are first separated, fused and / or their bristle ends are then overmolded, particularly subsequently for their attachment. In this case, bristle bundles can advantageously be brought together. Production using the in-mold tufting process is possible, in which case a base body, for example the brush head and / or the handle unit and / or the attachment unit, is advantageously formed during the overmolding of the bristle ends.It is also conceivable that, particularly in the context of integrated anchorless production, bristles are first overmolded with platelets or the like and these platelets are then overmolded again, for example to form the brush head and / or the handle unit.

[0030] It is further conceivable for the application unit to be composed of a base body and a bristle plate which is provided with bristles and / or alternative cleaning elements. For this purpose, bristle plates with through-holes through which bristles are subsequently guided are first manufactured by injection molding. The bristles are then preferably connected, in particular fused, on a rear side, preferably to one another and / or to the corresponding bristle plate. In this way, bristle-covered bristle platelets can then be welded and / or glued to a base body, in particular a brush head, preferably by means of ultrasonic welding. For this purpose, the base body, in particular the brush head, has in particular a recess into which the bristle platelet can be inserted.A well-known manufacturing process in this context is the anchor-free tufting process, which enables the merging of bristle bundles. The underside of the bristle plate is specifically referred to as a side that is placed in a recess in the base body and faces toward the back of the oral hygiene product. Accordingly, the top side of the bristle plate faces toward the top of the oral hygiene product.

[0031] Another possible method for anchorless bristle assembly is the production, in particular injection molding, of a brush head with through-holes for bristles. Bristles can then be guided through the through-holes and fused on a rear side, in particular with each other and / or with the brush head. This is preferably followed by overmolding, in particular with at least one soft component, of the fused areas and / or the brush head. It is also conceivable to first produce a brush head with blind holes, for example by means of injection molding and / or by drilling the blind holes. In this case, bristles are in particular gathered into bundles and fused and / or otherwise connected at one end. The brush head is then heated, in particular to a glass transition temperature of its material.Bristle bundles can then advantageously be inserted into the blind holes and anchored to the brush head by pressing them against it. In particular, the heated blind holes and their surroundings deform, anchoring the bristle bundles in them.

[0032] Alternatively or in addition to stamped and / or welded and / or glued bristles, molded-on bristles are also conceivable. These can be manufactured, in particular, during multi-component injection molding together with the application unit, the handle unit, and / or the fastening unit, or subsequently molded onto a base body of the application unit.

[0033] Another possible method for providing the brush head with bristles is twisting. Here, for example, filament is fed in from a roll, with several filament strands being wound onto a roll. Several rolls are pre-tensioned for machine feeding, because each filament in the brush corresponds to a filament strand. The filaments are spread out correctly in width so that they have the width at which they are fed into the brush. The filaments are pre-pulled so that they are free for the next step, i.e. so that a wire can be fed over them. A wire is then fed from a roll onto the machine, i.e. unwound and introduced into the process. The wire is cut to a length that is greater than the unwound length of the twisted-in brush, and the final cutting to length takes place after twisting.The wire is bent into a U shape so that the open end can be pushed over the filaments to thread the bristles. The wire is held at the bottom of the U. The open wire end is then clamped to hold the filaments between the wire pieces. The filaments are cut to a length greater than the final length in the brush so that the brush can be cut correctly once the filaments are twisted in. The wire is twisted so that the filaments are clamped between the wire and thus secured. Once the filaments are secured in the wire, they are cut to the correct length and profiled. Once the brush section is finished, the excess wire is trimmed off.

[0034] Preferably, the materials of injected bristles do not form a material bond with other soft components and / or hard components and / or sustainable materials of the oral hygiene product during an injection molding process, in particular a two-component and / or multi-component injection molding process. Rather, injected bristles are preferably connected to soft components and / or hard components by means of a positive connection, for example by means of at least one undercut and / or at least one opening and / or by means of at least partial overmolding, with a shrinkage connection and / or a shrinkage connection being particularly conceivable. However, a connection by means of at least one material bond is also conceivable.

[0035] For all of the aforementioned possible injection molding processes, single-, two-, and / or multi-component injection molding is conceivable. Materials used, especially different soft components and / or hard components, can be bonded in a material-to-material and / or form-fitting manner, as mentioned above. The formation of articulated, movable, or flexible connections using suitable injection molding steps is also conceivable. For example, hot runner processes, cold runner processes, and / or co-injection processes are generally possible.

[0036] Alternatively or in addition to a brush head equipped with bristles, the application unit can also comprise at least one tongue cleaner and / or at least one alternative cleaning and / or massaging element. These can each be formed from a soft component, a hard component, or a combination of soft and hard components and / or can advantageously be manufactured and / or produced by injection molding.

[0037] Preferably, injected bristles are formed at least partially and advantageously completely from a thermoplastic polyurethane elastomer (TPE-U). In this case, the use of a modified polyurethane elastomer (TPE-U) is conceivable, which can be modified in particular with regard to improved flow properties and / or rapid solidification, in particular rapid crystallization, advantageously even at higher temperatures. Of course, other materials for injected bristles are also conceivable, for example thermoplastic polyester elastomers (TPE-E), thermoplastic polyamide elastomers (TPE-A), polyethylene (PE), for example in the form of low-density polyethylene (LDPE) or linear low-density polyethylene (LLDPE), or the like. Materials for injected bristles advantageously have a Shore D hardness of at least 0 and particularly advantageously of at least 30 and / or of at most 100 and advantageously of at most 80.In particular, the Shore hardness of a material used for injected bristles is advantageously higher than the Shore hardness of other soft components used, for example, for handle elements, massage elements, other cleaning elements, or the like. The materials used for the production of injected bristles can be sustainable materials.

[0038] In principle, the use of water-soluble polymers is also conceivable, for example for hard components, soft components, injected bristles or other elements of the oral hygiene product.

[0039] Likewise, sustainable materials, especially bioplastics, can be used for the hard component, the soft component, and / or the material for injected and / or conventionally extruded bristles. These materials can be obtained from renewable resources. Suitable raw materials include corn, hemp, sugar, castor oil, palm oil, potatoes, wheat, sugar cane, sugar beets, rice husks, rubber, wood, the castor oil plant, and the like. Possible base materials could include, for example, cellulose, starch, lactic acid (PLA), glucose, chitin, chitosan, lignin, casein, gelatin, or the like, from which corresponding bioplastics can be synthesized.

[0040] The main groups of bioplastics preferred here include starch-based bioplastics, cellulose-based bioplastics, polyhydroxyalkanoates (e.g., polyhydroxybutyric acid (PHB)), polylactic acid (PLA), or aliphatic / aromatic copolyesters. Other preferred bioplastics include, for example, lignin-based bioplastics. A "functional unit" in this context is understood to mean, in particular, a unit intended to provide an additional and / or extended function of the oral hygiene product. Preferably, the unit is intended to permanently or optionally provide a function, in particular a function that goes beyond a basic function, to the oral hygiene product.Various functions that a person skilled in the art would consider useful are conceivable, such as a cleaning function, an information function, a protection function, a counting function, a reminder function, a design function, an animation function, a reservoir function, a convenience function, such as, in particular, a gripping function, a handling function, a marking function, and / or an activity function. In the case of a cleaning function, a cleaning function that goes beyond the basic cleaning function can be provided, in particular, by means of the functional unit.

[0041] Furthermore, in this context, a “mechanical switching element” should be understood to mean, in particular, an element that can be switched mechanically, in particular manually or with a simple aid, between different states and / or positions. The mechanical switching element preferably has a plurality of, in particular at least two defined static, mutually different states. It is also conceivable for the switching element to assume a plurality of stable states, such as, for example, 3, 4 or 5 states. The mechanical switching element is preferably elastically deflected in at least one of the defined static states. Preferably, at least one static state forms a relaxed state of the mechanical switching element.Preferably, the mechanical switching element can be brought from a first static state, in particular a rest state, into a further static state by elastic deformation, which is substantially different from the first state in terms of shape and / or orientation. Preferably, the switching element can be brought manually by an operator from a static state to the further static state, wherein the switching element preferably jumps into the respective static state, in particular automatically, when approaching the respective static state. Preferably, the mechanical switching element consists of a soft component or an elastic material, such as an elastomer or silicone. Preferably, the switching element has at least one switching cap, which is dome-shaped, in particular hemispherical, in the first state, in particular the rest state.Preferably, the switching cap can be turned inside out to create a dome on the opposite side. The switching element is designed in particular as a “pop it” or “push pop”. Preferably, the switching cap is designed in particular as a single “pop it” or “push pop” bulge. Preferably, the mechanical switching element is designed in one piece. “One piece” should be understood in particular as being formed in one piece. Preferably, this one piece is produced from a single blank, a mass and / or a cast, particularly preferably using an injection molding process, in particular a single and / or multi-component injection molding process. The switching element is formed in particular by an elastic element.An “elastic element” is to be understood in particular as an element which can be repeatedly deformed without the element being mechanically damaged or destroyed as a result and which, in particular after deformation, independently tends towards at least one of the static states.

[0042] For smaller toggle switches, it can be easier to use an aid if, for example, switching by pressing with a finger is not possible. The aid could be a pencil, a ballpoint pen, or a thin cylindrical rod. Smaller toggle switches that are not so easy to switch can be intentionally designed, for example, if switching is only rarely necessary or should not be easily possible. For example, such an element should be used for the function indicating the end of use, since the function is set once and should not be easily changed again afterwards.

[0043] "Intended" should be understood in particular to mean specifically programmed, designed, and / or equipped. The fact that an object is intended for a specific function should be understood in particular to mean that the object fulfills and / or performs this specific function in at least one application and / or operating state.

[0044] It is further proposed that the at least one switching element preferably has precisely two defined static, mutually different states, namely a first equilibrium state, in particular an initial state, and a second equilibrium state, in particular a deflection state. The first equilibrium state forms, in particular, a rest state of the switching element. The first equilibrium state forms, in particular, an unloaded state. Preferably, the switching element is at least partially prestressed in the second equilibrium state, in particular the deflection state. This enables, in particular, targeted switching between precisely two static states. An operator can, in particular, select and set a state suitable for a current application.Preferably, the switching element can be manually moved from one static state to another static state by an operator, in particular by applying a compressive force to the switching element. From an intermediate position between the equilibrium states, the switching element always switches to one or the other equilibrium state, depending on the intermediate position. The equilibrium states form, in particular, a rest position or a balanced position.

[0045] The at least one switching element can, in particular, have a customized feel and / or function. For example, different switching elements can create an adjustable or customized feel or shape on the oral hygiene device through their different equilibrium states. The same is also possible for functions, such as tongue cleaners, bristle fields, cleaning elements, and / or other mentioned functions. With multiple switching elements, it is particularly possible to provide a play of colors between the different switching elements. For example, switching elements can have different colors next to each other.

[0046] Furthermore, it is proposed that the at least one switching element has a substantial functional surface. In the initial state, the functional surface is the side which is equipped with functional elements and is directed outwards. The functional surface is preferably oriented towards the front of the oral hygiene device. However, it would also be conceivable for the functional surface to be oriented towards the back of the oral hygiene device. Preferably, the functional surface is convexly curved in the first equilibrium state and concavely curved in the second equilibrium state. Preferably, the functional surface is dome-shaped, in particular hemispherical, in the first equilibrium state and bowl-shaped in the second equilibrium state. Preferably, the switching element is curved on a side opposite the first equilibrium state in the second equilibrium state.Preferably, the switching element is convexly curved toward a front side in the first equilibrium state and convexly curved toward a rear side in the second equilibrium state. The functional surface is formed in particular by an upper side of the switching cap of the switching element. Preferably, the functional surface is arranged on a front side of the oral hygiene device. Preferably, the functional surface is formed by a surface of the switching cap of the switching element facing the front side.In this context, a "functional surface" is to be understood in particular as a surface of the functional unit, in particular of the switching element, which in at least one state of the switching element has a direct function, such as a display function, a cleaning function, a gripping function, an information function, a protective function, a counting function, a reminder function, a design function, an animation function, a reservoir function, and / or the like. Cleaning elements, display elements, a grip structure or the like can preferably be arranged on the functional surface. This makes it possible, in particular, to switch back and forth between different functions via the switching element, or to activate at least one function. Preferably, a function can be assigned to each static state. Furthermore, an advantageously high level of comfort can be provided.Furthermore, the cleaning result can be positively influenced.

[0047] It is further proposed that the functional unit have at least three mechanical switching elements, each consisting of an elastic material and each having at least two defined static states different from one another. The functional unit can preferably have 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 switching elements, preferably 1 to 6 switching elements. In particular, the realization of a plurality of switching elements is possible, wherein a carrier body of the application unit and / or the handle unit does not have to have the same thickness everywhere. The switching elements can have different shapes and / or sizes such as length, width and height. With a plurality of switching elements, the first equilibrium state, in particular the rest state, can be different for a plurality of switching elements on the oral hygiene device, for example alternating.The idle state can be provided differently, in particular depending on the application, for different functions. Preferably, the at least 2 or 3 mechanical switching elements are arranged next to one another. Preferably, the switching elements are arranged in a row. Preferably, the switching elements are arranged one behind the other along the main direction of extension of the oral hygiene device. Alternatively, it would also be conceivable for the switching elements to be distributed, in particular evenly, over the application unit and / or the handle unit. The switching elements can form a regular and / or an at least partially repeating structure. This makes it possible to provide a particularly advantageous functional unit. In particular, a functional surface and / or a plurality of functions can be provided over a large area.Several switching elements with corresponding labels or images can, for example, be designed to be pressed after a defined cleaning process has been completed. In the case of (children's) toothbrushes, for example, it would be conceivable for the switching elements to be designed as control elements. For example, three switching elements are conceivable, each with morning, midday and evening labels or images, whereby the switching element can be pressed after cleaning at the corresponding time of day. Alternatively, four switching elements are conceivable, each of which, like a quadrant timer, represents a quadrant of the teeth to be brushed. The switching elements could have corresponding labels and images for quadrant 1, quadrant 2, quadrant 3 and quadrant 4.Furthermore, individual switching elements or a combination of switching elements can represent an intended usage time of the oral hygiene product. For example, 3 switching elements can represent a usage period of 3 months, with a switching element being switched after each month. Alternatively, the expected or recommended end of use, e.g. 3 months after first use, can be set as a reminder using 12 switching elements. The month in which the end of use is reached is marked with the switched switching element. If there are several switching elements, these can in particular be arranged in a row, for example one behind the other, on a straight or curved line (e.g. on a circle or an ellipse), or freely. It would also be conceivable for the switching elements to be arranged as an array, for example with several switching elements next to each other in two dimensions.The switching elements can each be arranged at different distances from one another. The distances are preferably constant, in particular regular, in one or more dimensions. The distances between the switching elements are measured, in the case of multiple switching elements, in particular between the centers of the switching caps of the switching elements. Alternatively, the distances between the switching elements can vary. For example, it would be conceivable for the edge webs of the switching elements to abut one another. The distance is preferably the sum of 0.5 * the diameter of the first switching cap of the first switching element, the width of the support edge of the first switching element, the width of the edge web, the width of the support edge of the second switching element, and 0.5 * the diameter of the second switching cap of the second switching element.

[0048] If the switching elements are arranged at different distances, they can be designed to be identical with respect to the distance resulting from the width of the respective support edges and edge webs. The distance varies between the respective centers of the switching caps.

[0049] If there are multiple switching elements, it is also possible for one switching element to be integrated into another switching element. In this case, it would be conceivable, for example, for a small switching element to be integrated into the switching cap of a larger switching element. Furthermore, different hardnesses can be combined in one switching element, for example in the form of a softer switchable switching cap and a harder switchable switching cap (harder or softer is defined by the force [compressive force] required to switch a switching element). Furthermore, one switching element can be directed upwards and one switching element downwards. Furthermore, it would also be conceivable for both switching elements to be directed upwards or for both switching elements to be directed downwards. Furthermore, it would be conceivable for at least one switching element not to have a closed outer contour.For example, a support edge of the switching element may not be arranged around the entire switching cap. In particular, a collar-like arrangement may be provided, for example, for placement in the application unit. Furthermore, the switching element may be arranged on the edge, for example, on the edge of the brush head, so that complete encirclement is not possible. Furthermore, switching elements with two functions can be designed, such as a toothbrush with a tongue cleaner and / or soft element in one.

[0050] Furthermore, if there are several switching elements, it would be conceivable for the switching elements to be arranged in a three-dimensional geometry, i.e. not in a flat manner. The switching elements can preferably be integrated in the shape of a ball or a dome. In this case, it would be particularly conceivable for the carrier body to also consist of a soft component and for the carrier body and the switching elements to be formed in particular as a single piece. In this case, it would preferably be conceivable for the switching elements to protrude from a layer of soft component of the carrier body. A corresponding design would be conceivable in particular if the switching elements were designed as play elements for a children's toothbrush. The carrier body with the switching elements could in this case be arranged, for example, at a lower end of the oral hygiene device. Alternatively, it would also be conceivable for the entire handle unit to be designed with corresponding switching elements.This could in particular enable a reduction in the volume of the carrier body.

[0051] It is further proposed that the functional unit comprise at least two mechanical switching elements which have a common circumferential edge web. In the case of several switching elements next to one another, the edge web can in particular be extended geometrically. Furthermore, the edge web between two switching elements can be designed as an elevation made of the same material as the switching element(s). The carrier edge therefore does not rest against the carrier body everywhere. It is further proposed that the handle unit comprise at least one handle base body, wherein the functional unit is arranged on the handle base body. The handle base body in particular forms a carrier body of the handle unit for receiving the functional unit.The functional unit can in particular be arranged only in a defined partial area, such as a thumb grip area, of the handle base body, or it can be distributed over the entire handle base body. The functional unit can, for example, be arranged between a lower end of the oral hygiene device and the thumb grip area. In children's toothbrushes, the switching element of the functional unit can, for example, represent a Pop-it belly (e.g. the belly of an animal) with a corresponding arrangement. The functional unit can preferably be arranged in the area of ​​the support surface for the ball of the hand. Alternatively, it would be conceivable for the functional unit to be arranged as a thumb grip in the thumb grip area. The functional unit could accordingly form a Pop-it thumb grip.Depending on the state of the switching element, the thumb grip can be protruding or inward, and therefore with a dome at the back or front. A user can adapt the thumb grip area to his or her requirements. In particular, the handle unit advantageously comprises at least one thumb grip area and / or at least one handle area. The thumb grip area is advantageously arranged on the front side of the oral hygiene device and in particular on a front side of the handle element. It is conceivable that the thumb grip area and / or the handle area have at least one element and / or a surface structuring made of a soft component. This makes it particularly advantageous to provide additional functions on the handle unit, such as control functions and / or grip functions. The switching elements of the functional unit can be adjusted or arranged (e.g.in the thumb grip area or in the application area), that if too much pressure is exerted on the application unit during use, the switching element of the functional unit switches from the initial state to the deflection state. The user thus notices that he has applied too much force or pressure to the application unit and learns to apply the correct pressure. The switching element can then be very easily reset to the initial state. Furthermore, it would also be conceivable for the at least one switching element to be in the form of a suction cup. In particular, it would also be conceivable for two switching elements to be provided which are designed as suction cups directed towards one another and emit sounds when the pressure is released, in particular when separated.

[0052] It is further proposed that the functional unit be completely enclosed by the handle base body in at least one plane. This makes it possible, in particular, to advantageously integrate the functional unit. In particular, it makes it possible to advantageously fasten the functional unit. In particular, an advantageously filigree handle unit can be provided. The handle base body preferably has at least one recess in which the functional unit, in particular at least one switching element of the functional unit, is arranged. The recess is preferably completely enclosed by the material handle base body in the main extension plane of the handle unit. The handle base body preferably forms at least partially a ring, in particular a loop, which extends around the functional unit.The recess is preferably formed by an oval recess and / or a singly or multiply cambered recess. The base body forms, in particular, two lateral longitudinal webs, which are each connected at at least one end, in particular a front end and a rear end, and enclose the recess and thus the functional unit. The recess can also have individual transverse webs between the switching elements. The ring formed by the base body, in particular the loop, which encloses the recess, is, in particular, closed. In particular, there are preferably no open ends, such as fork-shaped designs. The ring, in particular the loop, can have a wide variety of cross-sections.Possible cross-sectional shapes are circular, oval, elliptical, rectangular, diamond-shaped, triangular, n-sided, rhombus-shaped, and parallelogram-shaped, whereby the edges / corners forming in the longitudinal direction can be rounded or "sharp." The ring is rounded or rounded, particularly on the outside, i.e., outside the recess. Furthermore, the cross-section can change along its longitudinal course and transition from one shape to another, even multiple times. Furthermore, it would also be conceivable for several recesses to be provided in the handle base body, in each of which at least one switching element of the functional unit is arranged. It would also be conceivable for switching elements to be arranged only in some of the recesses. Some of the recesses can also, for example, only have a frame and form a hole. The number of recesses can in particular be 1, 2, 3, 4, 5, or more, preferably one to three.The recesses can be arranged adjacent to one another, at least partially perpendicular to the longitudinal direction. The recess can have a variety of cross-sections in a plan view from the front. The shape of the recess, in particular, essentially corresponds to a shape of the functional unit.

[0053] The carrier body preferably has at least one recess. The carrier body can be part of the handle unit or part of the application unit. The carrier body has recesses or openings for the implementation of the switching element. The recesses form an edge for a connection of the at least one switching element. A connection of an edge web of the switching element is implemented in the recess. The recess preferably has, in particular, a closed contour. Preferably, the recess does not have an angular contour. However, an angular contour with rounded corners would be conceivable. For example, an n-gon with rounded corners. Preferably, the recess has a round or rounded shape, such as a circle, oval, or oblong. For an individual switching element, the recess has, in particular, a diameter of 8 mm to 30 mm, preferably of 12 mm to 25 mm.The length and / or width of the recess preferably corresponds substantially to the diameter. If the recess is intended to accommodate several switching elements, the length of the recess can be different. If several switching elements are arranged in a row, the width is based on the width of the individual switching element. The carrier body can, in particular, have a different thickness than the height of the switching element. Preferably, the switching element is completely recessed in the recess of the carrier body, for example, when arranged in a depression for the thumb grip. Alternatively, the switching element can also protrude from the carrier body, in particular protrude beyond an upper edge of the carrier body. The switching element can protrude far enough beyond the carrier body to enable comfortable switching with the finger, i.e.that the finger only has to dip slightly into the recess in the carrier body in order to actuate the switching element. Preferably, the at least one recess in the carrier body has a closure with a straight edge. The height of the recess is determined in particular by the fact that the switching element has to hold on to the carrier body and therefore sufficient fastening surface must be available. However, the thickness of the carrier body can in particular be greater than the straight edge of the recess. The height of the edge of the recess is in particular from 3 mm to 15 mm, preferably from 5 mm to 10 mm. Preferably, the edge forms a surface, in particular an annular surface, which extends perpendicular to the longitudinal direction of the oral hygiene product. However, it would also be conceivable for the surface of the edge of the recess to be conical.Furthermore, it would also be conceivable for steps to be provided in the surface of the edge of the recess, whereby particular consideration should be given to limitations in demoldability in the injection mold. Not all recesses in the carrier body need to be equipped with a switching element or filled. In particular, it is also possible for at least some of the recesses to have no filling, for at least some of the recesses to be provided with a soft component only at the edge, in particular corresponding to the component of the switching element, for at least some of the recesses to be completely filled, or for at least some of the recesses to be filled with a material film.

[0054] Due to the possible design variations in the interaction of the carrier body, the recess(es), the edge bar, the carrier rim, the switch cap, and / or the soft material, the switch element can be a movable part of an information element, a customizable surface structure, a figure, an ornament, a pictogram, or a logo. This can encourage the user to use the oral hygiene product in a playful way. Furthermore, comfort during use can be increased. In addition, the intended use of the oral hygiene product can be optimized or reinforced.

[0055] The recesses, in particular, enable material savings on the carrier body. Furthermore, by not completely filling the recesses, further material savings can be achieved. This makes the oral hygiene product more sustainable and resource-efficient. The at least one switching element is, in particular, received in the recess in a form-fitting and / or material-fitting manner. Preferably, the switching element is connected to the carrier body in a form-fitting and / or material-fitting manner.

[0056] Furthermore, it is proposed that the functional unit consists entirely of a soft component. Preferably, the at least one switching element consists entirely of a soft component. Preferably, the at least one switching element is arranged in a recess, in particular an opening, in the application unit and / or the handle unit, wherein the switching element is at least partially enclosed laterally by the application unit and / or the handle unit. The switching sound or the switching force (pressure force) of the switching element of the functional unit depends on the hardness of the soft component. The harder the soft component, the louder the popping sound or the greater the force (pressure force) required when switching between the states.The compressive force is further influenced by the material thickness, the material itself, and the shape of the individual elements of the functional element, for example the width of the support edge and the transition from the support edge to the switching cap. The compressive force required to move the switching element from the initial state to the deflected state is between 80 grams and 160 grams, preferably between 110 grams and 150 grams. To move the switching element from the deflected state back to the deflected state, a compressive force of 90 grams to 130 grams, preferably 60 grams to 140 grams, is required. In particular, a specific design that enables rapid adoption of the new static state is useful. Thermoplastically processable components are preferably provided. TPEs or similarly soft materials are preferably used. Alternatively, the use of silicone is also conceivable.When using silicone, two processes must be combined in series production, since the handle unit and / or the application unit are preferably manufactured using an injection molding process. This makes it possible to provide a switching element that is advantageously easy to manufacture. In particular, a switching element that is advantageously durable can be provided.

[0057] It is further proposed that the at least one switching element has at least one dome-shaped, in particular hemispherical, switching cap, which is elastically deflectable. Preferably, the switching cap is dome-shaped, in particular hemispherical, at least in the first equilibrium state. Preferably, the switching cap is dome-shaped, in particular hemispherical, in the first equilibrium state and in the second equilibrium state. The switching cap forms a dome in height. The switching cap, in particular, has a closed contour. The shape of the switching cap is, in particular, (hemi-)spherical or (hemi-)ellipsoidal. Alternatively, the shape of the switching cap can be hood-, dome-, conical-, thimble-, or pyramid-like. Preferably, the shape is generally rounded. Preferably, the switching cap has a symmetrical basic shape, which is preferably not square, but round or oval.The switching cap preferably has a rounded basic shape (e.g. ellipse, circle, n-gon with rounded corners), particularly on one base side. The base side of the switching cap can also follow a free (e.g. figure-shaped) contour. A rounded basic shape ensures the function best. Alternatively, an oval or regular n-sided shape with strongly rounded corners would also be conceivable. Symmetrical shapes are particularly preferred. The switching cap in particular only forms part of the geometry of the switching element. For example, it is conceivable for the switching element to be formed by a large rectangular element which has a round switching cap somewhere. The switching cap is preferably connected via an edge web. The edge web can have different widths.Furthermore, the transition from the switching cap to the edge web does not have to match the geometry of the recess in the handle unit and / or the application unit. This makes it possible to provide a particularly advantageous switching element. In particular, an advantageous shape of the switching element can be achieved.

[0058] In one variant, it would be conceivable for the switchover cap to have a non-closed layer or membrane, i.e. to be provided with recesses. In particular, it would be conceivable for the switchover cap to have incisions, in particular cuts towards the center, preferably spiral cuts, in which the switchover cap overall retains a dome or spherical shape, or sunbeam-shaped, straight cuts. The cuts are in particular regularly and / or symmetrically distributed. However, an irregular distribution would also be conceivable. The number of cuts or recesses is in particular from 4 to 15, preferably from 5 to 10. The width of the cuts or recesses is in particular from 0.5 mm to 3 mm, preferably from 1 mm to 2 mm. With a corresponding design of the switchover cap, the center can be either closed or open.A closed center design, in particular, allows for better assurance of the switching function. With an open center, the diameter of the opening is in particular between 0.5 mm and 5 mm, preferably between 1 mm and 2 mm.

[0059] Preferably, a (surface) structure is provided on the switch cap of the at least one switch element. The switch cap can preferably be provided with, in particular haptic, decorative or informative, elements which protrude or are recessed on the surface. The height or depth of the elements is in particular from 0.1 mm to 1.5 mm, preferably from 0.3 mm to 1 mm. The structures can be fully or partially distributed over the switch cap. Furthermore, the element can be completely filled or merely represented by an outer contour. Possible examples of the, in particular decorative or informative, elements are ornaments, figures and / or pictograms, such as Yes / No or On / Off, motifs, such as flowers or animals, and / or geometric elements, such as grids, diamonds or knobs.On the other hand, as already mentioned, information can be distributed across multiple switchable caps, for example, morning / midday / evening or quadrant 1 / quadrant 2 / quadrant 3 / quadrant 4. An eroded surface structure, for example, is conceivable. The switchable cap can have a different surface structure than other soft material zones on the oral hygiene device. In particular, the switchable cap can have a different surface structure than the edge bar and / or the support edge.

[0060] It is further proposed that the at least one switching element has at least one at least partially circumferential edge web for fixing the switching element, wherein the switching cap is connected to the edge web via a support edge. Preferably, the edge web is provided for direct connection to the handle unit and / or the application unit. The edge web serves in particular to fasten the switching element. Preferably, the edge web extends around the switching element, wherein the edge web is designed at a distance from the switching cap. Preferably, the support edge is arranged between the switching cap and the edge web, which connects the switching cap to the edge web. The edge web forms in particular a part of the structure of the switching element or the functional unit. The edge web ensures in particular the connection or attachment of the switching element to the handle unit and / or the application unit.Various implementations of the edge bar are conceivable, which a specialist would consider appropriate. In particular, various shapes are conceivable. The edge bar can form a haptic element of the handle unit or merge into one.

[0061] In a first variant, the edge web can extend over the entire height of the recess in which the switching element is arranged. Alternatively, in a second variant, the edge web can also extend only over the height / thickness of the carrier edge. Alternatively, options between the first and second variants would also be conceivable. The edge web is in particular annular. Preferably, the edge web directly adjoins the carrier edge on the inside. The carrier edge is formed between the edge web and the switching cap. The carrier edge preferably directly adjoins the edge web on the outside, in particular on an outer circumference. Furthermore, the carrier edge preferably directly adjoins the switching cap on the inside, in particular on an inner circumference. The carrier edge is in particular annular. Particularly preferably, the carrier edge and the edge web are round, in particular annular, around the switching cap.Alternatively, the support edge and / or the edge web can form only part of the circumference of the switchable cap. The switchable cap does not necessarily have to be 100% enclosed by the handle unit and / or the application unit, in particular by a support body of the handle unit and / or the application unit. The support edge must be designed such that the switchable cap is sufficiently fixed to enable switching. For example, it would be conceivable for the support edge to provide several connection points to the switchable cap, which are separated from one another by interruptions. The number of connection points or interruptions is in particular from 2 to 8, preferably from 3 to 6. The support edge in particular forms partial webs. The arrangement of the partial webs can be regular or irregular. However, the partial webs are preferably arranged symmetrically with respect to the center of the switchable cap.This makes it possible to provide, in particular, an advantageously stable and securely connected switching element. In particular, it enables secure fixation of the switching element without negatively affecting switching. It is also possible for the recess to extend all the way around the switching element, but the connection is implemented via the carrier edge but not all the way around the switching cap. The carrier edge is interrupted in certain sections.

[0062] It is also proposed that the at least one switching element be formed as a single piece. Preferably, the switching cap, the support edge, and the edge web are formed as a single piece or at least as a single component. The switching element is preferably made of a soft component. The switching element is manufactured, in particular, using an injection molding process. This allows the number of components to be kept to a minimum. Furthermore, reliable functionality of the switching element can be enabled. The switching element can be formed simultaneously and in one operation, preferably from the same injection point, with other elements made of soft material on the oral hygiene device, such as, for example, with:

[0063] - massage and / or cleaning elements on the application unit and / or,

[0064] - Tongue cleaning elements on the back of the application unit and / or,

[0065] - haptic elements or holding zones on the handle unit and / or,

[0066] - Fastening elements such as a suction cup on the handle unit and / or,

[0067] - Elements which increase the flexibility of the handle unit or application unit in certain zones, formed by zones of soft material which fill recesses in the hard component of the handle or application unit and / or,

[0068] - Logos, figures, ornaments, decorative elements.

[0069] It is further proposed that the functional unit comprise at least two mechanical switching elements which are connected to one another in one piece. If there are several switching elements, these can be arranged in particular in a row, for example one behind the other, on a straight or curved line, or freely. Preferably, the switching elements are arranged in particular in a row. Preferably, the switching elements are arranged one behind the other along the main direction of extension of the oral hygiene product. The switching elements are designed in particular to be directly adjacent to one another. This makes it possible, in particular, to keep the number of components low. Furthermore, a reliable functionality of the switching element can be enabled. This makes it possible, in particular, to provide a particularly advantageous functional unit. In particular, a functional surface and / or a plurality of functions can be provided over a large area.Several switching elements with corresponding labeling and / or images and / or arrangement can, for example, be intended to be pressed after completion of a defined time or usage or cleaning process.

[0070] It is further proposed that the handle base body forms a frame which directly and at least partially encloses the edge web. The frame, in particular, forms the carrier body. Preferably, the frame directly delimits the recess provided for receiving the switching element. The frame can have connecting webs or a grid of connecting webs which delimit individual or multiple switching elements. Preferably, the frame has an at least approximately constant cross-section. However, it would also be conceivable for the frame to have a changing cross-section. This makes it particularly advantageous to provide additional functions on the handle unit, such as control functions and / or grip functions.

[0071] It is further proposed that the handle base body have at least one thumb grip region, wherein the at least one mechanical switching element is integrated into the thumb grip region or forms at least a part thereof. The switching element in the thumb grip region is completely enclosed by the handle base body, in particular in at least one plane. Preferably, the functional unit is arranged as a thumb grip in the thumb grip region. The functional unit could accordingly form a pop-it thumb grip. Depending on a state of the switching element, the thumb grip can be designed to protrude or indent, thus with a dome at the rear or front. This means that the first equilibrium state or the functional surface can be oriented towards the front or the rear. An operator can adapt the thumb grip region, in particular, to his or her requirements.The switching element in the thumb grip area can serve to prevent excessive pressure on the application unit. In particular, the switching element can be configured so that, if excessive pressure is applied to the application unit, it significantly changes its shape or even switches to a different position. Advantageously, the thumb grip area is arranged on the front side of the oral hygiene device, and in particular on a front side of the handle element. This allows additional functions to be provided on the handle unit, such as control functions and / or grip functions, in a particularly advantageous manner.

[0072] Alternatively or additionally, it would also be conceivable for at least one switching element to be arranged in the neck of the oral hygiene product, particularly in the neck element of the application unit. However, it must be considered that switching does not work with standard toothbrush dimensions, as the switching element cannot be made sufficiently large. A generally or partially wider neck design than is commonly known must therefore be sought. Here, too, the switching element can serve as an indicator if too much pressure is exerted on the application unit.

[0073] It is further proposed that the application unit has at least one brush head, wherein the functional unit is integrated into the brush head. Preferably, the functional unit has at least one switching element which is arranged on the brush head. The switching element is formed in particular by a convertible cleaning element and / or a reservoir and / or a protective cover. Preferably, the application unit has structural or cleaning elements which are attached to the switching element. Preferably, the cleaning elements are injection-molded and in particular are produced from a single casting or in a single operation with the switching element. The switching element can have the function of contact pressure control, wherein the switching element with the cleaning elements is pushed away if too much pressure is applied and changes into a second equilibrium state. Preferably, the switching element is integrated directly into the brush head orembedded. For this purpose, the switching element must in particular be designed to be relatively large so that switching between the states is possible. The cleaning elements on the switching element can be designed as bristles and / or as slats and / or knobs and / or surface structures. The slats can in particular be formed by cleaning elements which are designed as protruding webs, in particular with an extension in a wider dimension than a bristle. The slats can, for example, be provided to provide a polishing or whitening effect. Alternatively, it would also be conceivable for the switching element to only serve to control the contact pressure as described above and not to have any other real function. This makes it particularly advantageous to provide additional functions on the application unit, such as control functions and / or cleaning functions.

[0074] The switching element is preferably designed in particular as a functional element in the brush head. The switching element can preferably be formed by a switchable, in particular foldable, collar. The switching element can in particular form a combination of a switchable head holder or protective element and a switchable tongue cleaner or tongue cleaner edge. When folded up, the switching element can serve as a head holder or protective element for the bristles, which at least partially surrounds a bristle field of the brush head. When folded down, the switching element or its edge can serve as a tongue cleaner, while the bristle field is free. The switching element is in particular formed by a U-shaped wall which extends around an upper edge of the brush head.An upper free edge of the wall can point towards the front in a first equilibrium state or towards the back of the oral hygiene device in a second equilibrium state. Alternatively, a combination of a toggle cleaning element and a toggle tongue cleaner would also be conceivable. When folded up, the toggle element can form a cleaning element and when folded down it can form a tongue cleaner. Alternatively, a combination of a toggle massage element and a toggle tongue cleaner would also be conceivable. When folded up, the toggle element can form a massage element and when folded down it can form a tongue cleaner. Further structures can be attached to the edge or surface of the toggle element. The structures serve in particular to assist cleaning, for example tongue cleaning in one case and / or teeth cleaning in the other case.A free edge of the switching element can have various designs that would be considered appropriate by a person skilled in the art, such as not straight but wavy, continuous or discontinuous, with nubs on the edge, and / or with small bristles on the edge. The side surfaces of the switching element could be provided with recesses, such as blind holes or through holes, and / or with nubs. Alternatively or additionally, the switching element can have a structure, such as a grid, nub, or eroded structure.

[0075] It is further proposed that the at least one switching element has a substantial functional surface, with cleaning elements being arranged on the functional surface. The cleaning elements are preferably injection-molded and in particular produced from a single casting with the switching element. It is further proposed that the at least one switching element has cleaning elements such as (injected) bristles and / or slats and / or knobs and / or surface structures, with the cleaning elements being formed integrally with a switching cap of the switching element. Advantageously, the term "integral" can also be understood to mean one-piece. The cleaning elements are in particular formed integrally with the at least one switching element. The functional surface is preferably dome-shaped, in particular hemispherical, in the first equilibrium state and bowl-shaped in the second equilibrium state.The functional surface is formed in particular by an upper side of the switching cap of the switching element. The functional surface is preferably arranged on a front side of the oral hygiene device, in particular on a front side of the application unit. The functional surface is preferably formed by a surface of the switching cap of the switching element facing the front side. The cleaning elements are arranged in particular so as to protrude from the functional surface. This makes it particularly advantageous to provide additional functions on the application unit, such as control functions and / or cleaning functions. It is further proposed that the cleaning elements form different cleaning patterns depending on a state of the switching element. The switching element preferably has the function that the cleaning field of the application unit can be partially customised.For example, the switching element can form a differently shaped cleaning field in the first equilibrium state than in the second equilibrium state. Depending on the state of the switching element, not every function is active in every state. Preferably, a partial cleaning field can be activated using the switching element. This allows for a particularly advantageous high degree of individualization. Advantageous adaptability can be provided.

[0076] Furthermore, it would be conceivable for the oral hygiene device to be formed by a convertible tongue cleaner, wherein the application unit is formed by a tongue cleaner head. Preferably, the at least one switching element is arranged at least on the application unit in a corresponding embodiment. Cleaning elements, in particular tongue cleaning elements, of the application unit are preferably arranged on the at least one switching element. In particular, it is provided that the cleaning elements are pushed away if too much pressure is applied. Preferably, the at least one switching element is equipped with the cleaning elements and / or at least partially forms a cleaning element itself. Preferably, a corresponding oral hygiene device can have switchable tongue cleaner designs.In particular, a design with little pressure, in which the switching elements with the cleaning elements are not pushed away, and a design with pushed-away switching elements, in which the base area of ​​the application unit, in particular the tongue cleaner head which carries the switching elements, serves as the cleaning surface. Preferably, the cleaning surface of the tongue cleaner head has further cleaning elements. In the second design, cleaning is carried out accordingly with the further cleaning elements or certain cleaning elements are left out in the second design. Alternatively, it would also be conceivable for the tongue cleaner head to have two sides with two different tongue cleaners on each side. In particular, it would be conceivable for the switching elements to be able to be switched on at the front or the back. In particular, the front and back of the tongue cleaner head can thus each have two different designs orFunctions. Corresponding designs of the application unit can be realized, in particular, either as a tongue cleaner only or as a tongue cleaner integrated into the toothbrush, i.e., bristles for tooth cleaning are provided on the front of the application unit, and the described tongue cleaner head is provided on the back. Preferably, the switching element is free, particularly at the rear, so that it can be pushed back again. In this case, a design as a tongue cleaner only is particularly advantageous.

[0077] The switching element may have no function or a different function on the front of the application unit than on the back of the application unit and vice versa.

[0078] Furthermore, it is possible that the at least one switching element is not accessible from both sides. In this case, the at least one switching element delimits, in particular, a hollow space on the rear side. In this case, the functional unit preferably has, in particular, a reset element serving as a reset aid for the at least one switching element. The reset element can, for example, be formed by a pulling element arranged on the switching element in order to retract the switching element into the first equilibrium state. The reset element can, for example, also be formed by a cleaning element at the same time. Alternatively or additionally, it would also be conceivable for the reset element to be formed by a pushing element. The reset element can, for example, be formed by a rocker which presses on the switching element in the second equilibrium state and thus triggers the reset.Alternatively or additionally, it would also be conceivable for the cavity delimited by the switching element to have an injection opening into which, for example, an operator can blow in order to transfer the switching element from the second equilibrium state to the first equilibrium state. Alternatively, it would also be conceivable for several switching elements to delimit a common, closed cavity, wherein the volume of the cavity is dimensioned such that only a defined number of switching elements can be in the first or second equilibrium state. Thus, if a switching element is transferred from one equilibrium state to the further equilibrium state, a further switching element automatically moves from the further equilibrium state to the other equilibrium state due to pressure equalization in the cavity.For example, two switching elements can be connected to each other via a closed cavity, whereby the volume of the cavity is designed so that the switching elements can never be in the same equilibrium state.

[0079] Possible application examples for switching elements that are not accessible from both sides are, for example, application units with a brush head with a tongue cleaner, in particular on the back. Furthermore, an application unit designed as a toothbrush head with an AFT bristle field would also be conceivable. Due to the bristle field on the front, the switching element is only accessible from one side. Alternatively or additionally, an application would also be conceivable in which the switching element is arranged in the handle base body and covers a hollow space. Here, resetting could be achieved with a resetting element, in particular a pulling or pushing element. It is further proposed that the switching cap of the at least one switching element has a diameter of 8 mm to 30 mm.Preferably, the switch cap has a diameter of 8 mm to 30 mm, preferably 12 mm to 25 mm, at the transition to the edge web, particularly measured on the side of the rest position. The length and width of the switch cap are preferably also 8 mm to 30 mm, preferably 12 mm to 25 mm. This makes it possible to provide, in particular, an advantageously compact and yet easy-to-use switch cap.

[0080] It is also proposed that the switchover cap of the at least one switchover element has a material thickness of 0.5 mm to 2.5 mm. Preferably, the material thickness of the switchover cap is between 0.8 mm and 2 mm. Furthermore, a layered structure would also be possible. However, the switchover cap preferably has a substantially constant layer thickness. The greatest material thickness is preferably at a high point of the switchover cap, with the material thickness being less in the region of the edge web so that switching is possible. In this context, “at least substantially” should be understood to mean in particular that a deviation from a predetermined value is in particular less than 25%, preferably less than 10%, and particularly preferably less than 5% of the predetermined value. This makes it possible to provide in particular a particularly advantageous switchover cap.In particular, it is advantageous to enable the switching element to switch between the states in a simple manner.

[0081] It is further proposed that the support edge of the at least one switching element has a width of 0.5 mm to 5 mm. Preferably, a minimum distance between the switching cap and the edge web is 0.5 mm to 5 mm, preferably 0.7 mm to 3 mm. Preferably, the support edge has a thickness of 0.5 mm to 3 mm, preferably 0.7 mm to 1.5 mm. This makes it possible to provide a particularly advantageous support edge. Particularly advantageously, switching of the switching element between the states can be enabled in a simple manner.

[0082] In one embodiment, it would be conceivable for the oral hygiene device to be formed by a hairbrush or a massage brush, with the switching element being arranged in the application unit or the handle unit. In the application unit, the function of the switching element can be particularly analogous to that of a tongue cleaner.

[0083] Preferably, the functional unit can in particular be used in its basic function beyond the service life of the oral hygiene product. The functional unit can in particular continue to be used or reused after the first use in the first oral hygiene product. For example, if the oral hygiene product is designed as a replaceable-head toothbrush, the handle unit with the functional unit can be used multiple times. Alternatively or additionally, it would also be conceivable for the functional unit to be detached. By detaching the functional unit, it can continue to be used, for example as a key ring. In particular, a hole in the carrier element without a switching element can be used as an eyelet for a key ring. Detachment can generally be achieved, for example, by sawing, cutting or bending.

[0084] It is further proposed that the functional unit comprise a material reservoir. Preferably, the switching cap of the switching element, in its original form, comprises a filling in the recess formed by the switching cap. Preferably, the filling can be pressed out by switching the switching element. The filling can be toothpaste, for example. The switching element can serve in particular as a temporary reservoir or as a measuring or dosing unit. In this case, the switching element is pressed out and then filled with treatment, or it is filled with treatment and then pressed out, such as, for example, bleaching or tooth gel. Once the oral hygiene product is used, the filling is dispensed. Once application is complete, the switching element can be folded in. The switching cap can assume a reservoir function.When used as intended, both the front and back of the application unit (or handle unit) can form a concave surface on both sides thanks to the switchable cap, depending on their position. This can be used to hold a liquid, paste, tablet, gel bead, or the like. This allows the user to carry out a (special) treatment regularly (e.g., daily, weekly) or from time to time. Examples of such treatments include whitening treatment, antibacterial treatment, fluoride treatment, etc. If no (special) treatment is desired, the switchable cap can be folded to the other side if necessary, and the application unit can be used without the reservoir function.

[0085] Furthermore, this also makes it possible to use the reservoir function for one or the other treatment depending on the condition. For example, with an oral hygiene product like a toothbrush, if the concave side is facing forward for treating the teeth, and if the concave side is facing backward for treating the tongue.

[0086] Furthermore, the invention is based on a protective cap for an oral hygiene product, in particular for a toothbrush, with at least one, advantageously one-piece, cap body defining at least one interior space intended to accommodate at least one part, preferably at least one part of an application unit, of the oral hygiene product. The protective cap is formed in particular by a head holder. It is proposed that the protective cap have at least one, in particular one-piece, mechanical switching element fixedly arranged on the cap body, which consists of an elastic material and which has at least two defined static, mutually different states. The cap body can have a hanger. The cap body comprises in particular two shell elements which are pivotally connected to one another. Preferably, a switching element is arranged on each of the shell elements.The protective cap is particularly case-shaped. In one variant, the switching element switches in particular when the protective cap is closed, for example from the inside to the outside. In this case, it would be particularly conceivable for the protective cap to be able to be opened again by pressing in at least one switching element. In a further variant, the switching element is particularly intended to clamp an application unit of the oral hygiene product. In this case, it would be particularly conceivable for the switching element not to switch when the head holder is closed, but to clamp it to the application unit before the switching point. This advantageously allows the inserted oral hygiene product and the protective cap to be fixed to one another.

[0087] The inventive design of the protective cap allows for advantageous properties regarding secure and / or hygienic fastening and / or storage. Furthermore, the switching element can be used, in particular, to reliably open the protective cap. Furthermore, a dual functionality can be advantageously achieved, comprising secure enclosing and an additional function.

[0088] The protective cap is provided in particular to protect and / or at least partially surround the application unit, in particular the cleaning area. The protective cap is preferably designed as a toothbrush protective cap. In particular, the protective cap is intended for use with at least one manual toothbrush and / or with at least one electric toothbrush. Advantageously, the protective cap has at least one passage through which, when placed on the oral hygiene product, a neck region of the application unit penetrates into the interior. In particular, the passage is dimensioned such that the cleaning area arranged in the interior cannot be removed from the interior through it. In particular, the cap body is designed to be openable for placement on the cleaning area.Preferably, the entire cleaning area and in particular its bristles and / or bristle bundles are arranged within the interior when attached. The protective cap is preferably formed in one piece. In particular, the cap body forms the protective cap. In particular, the cap body has a length of at least 20 mm, advantageously of at least 30 mm and particularly advantageously of at least 40 mm and / or of at most 60 mm. This is measured without the hanger. In particular, the cap body has a width of at least 10 mm, advantageously of at least 15 mm and particularly advantageously of at least 20 mm and / or of at most 50 mm, advantageously of at most 40 mm and particularly advantageously of at most 30 mm.In particular, the cap body has a height of at least 10 mm, advantageously of at least 15 mm and particularly advantageously of at least 20 mm and / or of at most 50 mm, advantageously of at most 40 mm and particularly advantageously of at most 30 mm. In addition, the cap body in particular has a wall thickness, which is advantageously at least substantially constant, of at least 0.3 mm, advantageously of at least 0.5 mm and particularly advantageously of at least 0.7 mm and / or of at most 2.5 mm, advantageously of at most 2 mm and particularly advantageously of at most 1.3 mm. Advantageously, the cap body has at least one ventilation hole. Particularly advantageously, the cap body has a plurality of ventilation holes, in particular at least in pairs which are mirror-symmetrical to one another and / or regularly arranged.Advantageously, at least some of the ventilation holes are designed such that they collectively form a cap motif, such as a stylized face or at least parts of one, or some other pattern. The ventilation holes are preferably arranged laterally on the cap body. The cap body advantageously has a smooth surface, particularly for reasons of improved hygiene and / or reduced susceptibility to soiling, and at least some sections also have a smooth surface.

[0089] Surface structuring is conceivable, which can particularly form parts of the cap motif.

[0090] The cap body is advantageously formed from any desired hard component, but preferably from polypropylene or polyethylene. It is also conceivable for the cap body to be formed at least partially from a soft component, preferably TPE. In particular, the cap body is formed as an injection-molded part. Furthermore, it is conceivable for a material of the cap body to comprise at least one admixture with functional properties, for example, antibacterial agents. Admixtures for optical reasons, such as glitter and / or colored microparticles or the like, are also conceivable.

[0091] The hanger is advantageously hook-shaped. In particular, the hanger is curved towards the passage of the cap body. The hanger is advantageously U-shaped. In addition, the hanger advantageously has a cross-section that tapers towards its end. In addition, the hanger is advantageously waisted. Preferably, the hanger is designed as a hollow body, the interior of which can in particular be connected to the interior of the cap body. In addition, it is conceivable for the hanger to have at least one support section made of a soft component at least on an inner side, which is intended in particular to rest on a suspension position such as a hook and / or a rod or the like. In principle, however, hangers of other designs are also conceivable. For example, the hanger can be a magnetic hanger, a Velcro hanger, a suction cup hanger or the like.It is also conceivable that the hanger is intended for attachment to a counter element which can be attached to a hanging position and, in particular, forms a hanging system together with the hanger.

[0092] The shell elements are advantageously connected to one another by means of at least one, in particular by means of exactly one, film hinge. However, a combination of several film hinges arranged next to one another, in particular at a distance from one another, is also conceivable. The film hinge is arranged in particular on the rear side of the cap body. In particular, the film hinge has a material thickness of at least 0.05 mm, advantageously of at least 0.1 mm and particularly advantageously of at least 0.15 mm and / or of at most 0.7 mm, advantageously of at most 0.5 mm and particularly advantageously of at most 0.3 mm. The material thickness of the film hinge preferably varies and is advantageously approximately 0.28 mm in an edge region and / or approximately 0.2 mm in a central, not necessarily centrally arranged region.

[0093] Preferably, the cap body can be produced and / or manufactured using a simple tool without core pulls, etc., in particular by means of at least one injection molding process. Preferably, the cap body is manufactured in an open state, in which the shell elements preferably enclose an opening angle of 180°. In particular, in the open state, the cap body is demoldable in at least one direction, advantageously in two opposite directions, and / or is designed free of an undercut, at least apart from the closure elements of the closure unit.

[0094] The soft component for manufacturing the functional unit or the switching element is preferably introduced from a single injection point. The injection point is preferably located in an end region of the functional element where the switching element has a larger accumulation of material mass, and therefore in the edge region of the switching element. For example, in the case of multiple switching elements, it is located in the edge region of the largest switching element at the end. It may be necessary to create a material buffer made of soft component in the area of ​​the injection point to ensure optimal material flow.

[0095] Vents may be necessary in the cavity for manufacturing the switchover element in the mold to ensure optimal filling of the switchover cap with soft components. Venting can occur via incorporated structures / logos / geometries on the switchover cap or via elements specifically designed for venting. The venting elements are preferably located at the culmination point of the individual switchover cap.

[0096] Advantageous properties with regard to hygienic and / or safe storage can be achieved in particular with a system comprising at least one oral hygiene product according to the invention and at least one protective cap according to the invention. In particular, the system comprises precisely one oral hygiene product and precisely one protective cap, in particular one attached thereto. Advantageously, the oral hygiene product can be hung by means of the hanger when the protective cap is in place, in particular without the cleaning area falling out of the interior.

[0097] The invention also encompasses a method with and / or for producing an oral hygiene product according to the invention and / or a protective cap according to the invention and / or a system according to the invention. In particular, the method can comprise at least one method step in which the protective cap is placed onto the oral hygiene product and advantageously closed, and preferably at least one method step in which the oral hygiene product is suspended by means of the hanger of the attached protective cap, for example on a hook, a screw, a nail, a bracket or the like. It is also conceivable for the method to comprise at least one method step in which at least part of the oral hygiene product and / or the protective cap is produced by means of at least one injection molding process and / or by means of at least one bristle application, wherein in this context particular reference is made to the above description.

[0098] The oral hygiene product according to the invention and the protective cap according to the invention are not intended to be limited to the applications and embodiments described above. In particular, the oral hygiene product according to the invention and the protective cap according to the invention can, to fulfill a function described herein, have a number of individual elements, components, and units that differs from the number stated herein and / or any reasonable combination thereof. Furthermore, in the value ranges specified in this disclosure, values ​​within the stated limits are also to be considered disclosed and can be used arbitrarily. Drawings

[0099] Further advantages will become apparent from the following description of the drawings. The drawings illustrate six exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also expediently consider the features individually and combine them into useful further combinations.

[0100] They show:

[0101] Fig. 1 An oral hygiene product according to the invention with an application unit, with a handle unit and with a functional unit in a schematic 3D view from the front,

[0102] Fig. 2 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit in a schematic 3D view from behind,

[0103] Fig. 3 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit in a schematic front view,

[0104] Fig. 4 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit in a schematic side view,

[0105] Fig. 5 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit in a schematic rear view,

[0106] Fig. 6 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit in a schematic sectional view along the section line VI-VI,

[0107] Fig. 7 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit in a schematic sectional view along the section line VII-VII,

[0108] Fig. 8 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit, which has a switching element in a second equilibrium state and four switching elements in a first equilibrium state, in a schematic 3D view from the front,

[0109] Fig. 9 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit, which has the switching element in the second equilibrium state and four switching elements in the first equilibrium state, in a schematic front view,

[0110] Fig. 10 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit, which has the switching element in the second equilibrium state and four switching elements in the first equilibrium state, in a schematic sectional view along the section line XX,

[0111] Fig. 11 shows the oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit, which has the switching element in the second equilibrium state and four switching elements in the first equilibrium state, in a schematic sectional view along the section line XI-XI,

[0112] Fig. 12 shows a partial section of a system with the oral hygiene product and with a protective cap in a closed state in a schematic side view,

[0113] Fig. 13 a partial section of the system with the oral hygiene product and with the protective cap in a closed state in a schematic front view,

[0114] Fig. 14 a partial section of the system with the oral hygiene product and with the protective cap in an open state in a schematic front view,

[0115] Fig. 15 shows an alternative oral hygiene device according to the invention with an application unit, with a handle unit and with a functional unit, which has a switching element in a first equilibrium state, in a schematic 3D view from the front,

[0116] Fig. 16 shows the alternative oral hygiene device according to the invention with the application unit, with the handle unit and with the functional unit, which has the switching element in the first equilibrium state, in a schematic 3D view from behind,

[0117] Fig. 17 shows a further alternative oral hygiene device according to the invention with an application unit, with a handle unit and with a functional unit, which has a switching element in an alternative first equilibrium state, in a schematic 3D view from the front,

[0118] Fig. 18 shows the further alternative oral hygiene device according to the invention with the application unit, with the handle unit and with the functional unit, which has the switching element in the alternative first equilibrium state, in a schematic 3D view from behind,

[0119] Fig. 19 shows a further alternative oral hygiene device according to the invention with an application unit, with a handle unit and with a functional unit which has a switching element in a first equilibrium state, in a schematic 3D view from the front,

[0120] Fig. 20 shows the further alternative oral hygiene device according to the invention with the application unit, with the handle unit and with the functional unit, which has the switching element in the first equilibrium state, in a schematic side view,

[0121] Fig. 21 shows the further alternative oral hygiene device according to the invention with the application unit, with the handle unit and with the functional unit, which has the switching element in a second equilibrium state, in a schematic 3D view from the front,

[0122] Fig. 22 shows the further alternative oral hygiene device according to the invention with the application unit, with the handle unit and with the functional unit, which has the switching element in the second equilibrium state, in a schematic side view,

[0123] Fig. 23 shows a further alternative oral hygiene device according to the invention with an application unit, with a handle unit and with a functional unit, which has a plurality of switching elements in a first equilibrium state, in a schematic 3D view from the front, Fig. 24 shows the further alternative oral hygiene device according to the invention with the application unit, with the handle unit and with the functional unit, which has a plurality of switching elements in a second equilibrium state, in a schematic 3D view from the front,

[0124] Fig. 25 shows a further alternative oral hygiene product according to the invention with an application unit, with a handle unit and with a functional unit which has a switching element in a first equilibrium state, in a schematic 3D view and Fig. 26 shows the further alternative oral hygiene product according to the invention with the application unit, with the handle unit and with the functional unit which has the switching element in a second equilibrium state, in a schematic 3D view.

[0125] Description of the embodiments

[0126] Figure 1 shows a front side 46a of an oral hygiene device 10a in a schematic perspective view. In the present case, the oral hygiene device 10a is designed as a toothbrush, in particular a children's toothbrush. The oral hygiene device 10a can also be designed as a disposable toothbrush or as a replaceable-head toothbrush. Furthermore, the oral hygiene device 10a could be designed as a flosser, a single-tuft brush, an interdental cleaner, a tongue cleaner, or the like. Furthermore, combined oral hygiene devices are conceivable that combine at least two different functions, for example, a toothbrush with a tongue cleaner, a toothbrush with massage elements, an interdental cleaner with a flosser, or the like.

[0127] The oral hygiene device 10a has at least one application unit 12a. Furthermore, the oral hygiene device 10a has at least one handle unit 14a. The handle unit 14a consists of a hard component and optionally of a soft component. In general, a design with one or more hard components and / or one or more soft components is also possible. The soft component is necessary in any case for the implementation of a functional unit. Reference is made below to Figures 1 to 11, which show different views of the oral hygiene device 10a. Due to the different views, some elements are not shown in all figures and accordingly are not provided with reference symbols in all figures.

[0128] The oral hygiene device 10a has a longitudinal axis 48a, a height axis 50a, and a width axis 52a. The longitudinal axis 48a is arranged parallel to a main extension direction 54a of the oral hygiene device 10a. If the oral hygiene device 10a is placed with a rear side 56a on a flat surface so that the longitudinal axis 48a is arranged parallel to the surface, the height axis 50a is arranged perpendicular to the longitudinal axis 48a and perpendicular to the surface and the width axis 52a. The width axis 52a is arranged perpendicular to the longitudinal axis 48a and perpendicular to the height axis 50a.

[0129] The at least one application unit 12a has a head region 58a. The head region 58a forms a brush head 34a of the application unit 12a. In the present case, the head region 58a, in particular the brush head 34a, is designed as a toothbrush head. The brush head 34a has, in particular, a base body 60a designed as a bristle carrier. The base body 60a of the brush head 34a is formed entirely from a hard component. However, it would also be conceivable for the base body 60a of the brush head 34a to be formed from a hard component and a soft component. The base body 60a of the brush head 34a forms a bristle carrier. The oral hygiene device 10a further has a cleaning region 62a received by the brush head 34a, which comprises a plurality of bristle bundles. At least one recess is formed on the front side of the brush head 34a.The at least one recess is provided for receiving a bundle of bristles from the cleaning area 62a. The brush head 34a has a plurality of recesses. The recesses are formed by bristle holes. The recesses are shaped as blind holes. The recesses have a diameter of 1.2 mm to 2 mm in the main area and preferably of 1.4 mm to 1.8 mm. The recesses preferably have a chamfer at the entrance. The chamfer is designed in particular as a cone or rounded portion. Furthermore, the recesses are particularly tapered at the lower end. In principle, the recesses can also be designed in a different shape. Any suitable bristles can be used as the bristles, which, as described above, can be punched, for example, using the anchor punching process. The structure of the head area 58a differs in other bristle forming processes.In principle, the use of other bristle application methods would also be conceivable, for example, the anchorless AFT method. This could provide an anchorless oral hygiene device 10a. In the case of AFT, a recess is provided in the brush head 34a, which is intended to receive a plate parallel to the handle unit 14a. The plate is produced in particular by means of an injection molding process, wherein the plate is already provided with bristles before attachment. The plate is intended to be anchored in the recess of the brush head 34a, in particular by welding. Bristle bundles can differ in terms of their length, composition, number of bristles, bristle material, color, surface structuring, and the like.Likewise, the angles at which the bristles and / or the bristle bundles are arranged relative to each other or to a surface of the base body 60a of the brush head 34a can vary between bristles and / or between bristle bundles. Furthermore, the application unit 12a in the present case comprises at least one neck region 64a, which in particular connects the head region 58a to the handle unit 14a. The neck region 64a forms a neck.

[0130] The application unit 12a is arranged on the upper side of the oral hygiene device 10a. The application unit 12a forms an uppermost point of the oral hygiene device 10a. The application unit 12a is formed entirely from a hard component. However, it would also be conceivable for the application unit 12a to be formed partially from a soft component and partially from a hard component. With regard to suitable soft and / or hard components, reference is made to the above description. In principle, the application unit 12a can have at least one tongue cleaning element. The tongue cleaning element can in particular have knobs and / or lamellae. The tongue cleaning element is preferably arranged on the rear side of the head region 58a; in particular, it can be arranged on a ring made of a soft component and / or on an island made of a hard component.The neck region 64a forms a transition between the application unit 12a and the handle unit 14a. The neck region 64a is formed from the hard component. The neck region 64a is at least partially resilient.

[0131] The handle unit 14a has a handle base body 22a. The handle unit 14a has at least one gripping surface 66a, which forms a surface of the handle base body 22a. The gripping surface 66a extends on the front side 46a from the neck region 64a to the lower end of the oral hygiene device 10a on the underside. The handle base body 22a of the handle unit 14a delimits at least one recess 68a. The recess 68a extends completely through the handle base body 22a and is completely enclosed by the handle base body 22a in at least one plane 24a. The recess 68a is completely enclosed by the handle base body 22a in a plane 24a parallel to a main extension plane of the handle unit 14a. The recess 68a is completely enclosed by the handle base body 22a in the main extension plane of the handle unit 14a. The handle base body 22a forms a frame that extends around the recess 68a.The recess 68a has a multiply cambered cross-sectional shape in the main extension plane of the handle unit 14a. The recess 68a is aligned in particular along the longitudinal axis 48a of the oral hygiene device 10a. The handle base body 22a forms two lateral longitudinal webs 70a, 70a', which are each connected at a front end and a rear end of the recess 68a along the longitudinal axis 48a and enclose the recess 68a. The frame formed by the handle base body 22a is closed. In particular, there are no open ends, such as fork-shaped configurations. The longitudinal webs 70a, 70a' of the handle base body 22a are connected to one another at a lower end of the oral hygiene device 10a and at a transition from the handle unit 14a to the neck region 64a. The longitudinal webs 70a, 70a' of the handle base body 22a have, for example, a D-shaped cross section.The longitudinal webs 70a, 70a' of the handle base body 22a are rounded or rounded on the outside, i.e., outside the recess 68a. Furthermore, the longitudinal webs 70a, 70a' of the handle base body 22a are approximately rectilinear on the inside, i.e., facing the recess 68a, in particular with a surface perpendicular to the main extension plane of the oral hygiene device 10a. The cross sections of the longitudinal webs 70a, 70a' can change at least partially along their longitudinal path, in particular with regard to the dimensioning of the cross section. The longitudinal webs 70a, 70a' of the handle base body 22a have a wave-shaped, in particular a semi-wave-shaped, path along the longitudinal axis 48a.

[0132] Furthermore, the oral hygiene device 10a has a functional unit 16a, which is arranged on the handle unit 14a. The functional unit 16a can have various functions, such as a cleaning function, a comfort function, such as in particular a gripping function, a handling function, and / or an occupation function. The functional unit 16a functionally forms part of the handle unit 14a. The functional unit 16a is fixedly, in particular captively, arranged on the handle unit 14a. The functional unit 16a is arranged on the handle base body 22a. The functional unit 16a is completely enclosed by the handle base body 22a in at least one plane 24a. The functional unit 16a is arranged in the recess 68a. The functional unit 16a at least partially fills the recess 68a. The functional unit 16a is completely enclosed by the material handle base body 22a in the main extension plane of the handle unit 14a.The functional unit 16a at least partially forms a gripping surface 66a of the gripping unit 14a. The functional unit 16a consists entirely of a soft component.

[0133] The functional unit 16a has at least one one-piece, mechanical switching element 18a, 18a', 18a", 18a'", 18a"", which consists of an elastic material and which has at least two defined static states that are different from one another. The functional unit 16a has at least three mechanical switching elements 18a, 18a', 18a", 18a'", 18a"", each of which consists of an elastic material and which each has at least two defined static states that are different from one another. The functional unit 16a has, for example, exactly five mechanical switching elements 18a, 18a', 18a", 18a'", 18a"", each of which consists of an elastic material and which each has at least two defined static states that are different from one another.The functional unit 16a has a first switching element 18a, a second switching element 18a', a third switching element 18a', a fourth switching element 18a'", and a fifth switching element 18a"". In a direction from a lower end of the oral hygiene device 10a toward the application unit 12a, the first switching element 18a is arranged first, then the second switching element 18a', then the third switching element 18a", then the fourth switching element 18a'", and finally the fifth switching element 18a"". The switching elements 18a, 18a', 18a", 18a'", 18a"" each have exactly two defined static, mutually different states, namely a first equilibrium state, in particular an initial state, and a second equilibrium state, in particular a deflection state. In Figures 1 to 7, all switching elements 18a, 18a', 18a”, 18a'”, 18a”” are in the first equilibrium state.In Figures 8 to 11, the first switching element 18a is in the second equilibrium state, while the second to fifth switching elements 18a', 18a", 18a'", 18a"" are in the first equilibrium state. The first equilibrium state forms a rest state of the respective switching element 18a, 18a', 18a", 18a'", 18a"". The first equilibrium state forms an unloaded state. Furthermore, the switching elements 18a, 18a', 18a", 18a'", 18a"" are at least partially prestressed in the second equilibrium state, in particular the deflection state. The switching elements 18a, 18a', 18a", 18a'", 18a"" can be brought manually by an operator, in particular by applying a compressive force to the respective switching element 18a, 18a', 18a", 18a'", 18a"" from one equilibrium state to another equilibrium state.From an intermediate position between the equilibrium states, the switching elements 18a, 18a', 18a", 18a'", 18a"" always switch to one or the other equilibrium state, depending on the intermediate position. In particular, the switching element 18a, 18a', 18a", 18a'", 18a"" automatically jumps to the static state when approaching the static state. The equilibrium states form, in particular, a rest position or a balanced position. The switching elements 18a, 18a', 18a", 18a'", 18a"" each have a function for the actual application of the oral hygiene device 10a and / or an additional function. For example, the switching elements 18a, 18a', 18a", 18a'", 18a"" can create a play element, for example for a child's toothbrush. Alternatively, the function of the switching elements 18a, 18a', 18a", 18a'", 18a"" can be intended for a non-playful application, e.g. used as a clamping element, control element or the like.The switching elements 18a, 18a', 18a", 18a'", 18a"" serve in particular as game elements and / or as control elements. The switching elements 18a, 18a', 18a", 18a'", 18a"" each have a substantial functional surface 20a, which is convexly curved in the first equilibrium state and concavely curved in the second equilibrium state. The functional surfaces 20a of the switching elements 18a, 18a', 18a", 18a'", 18a"" are each dome-shaped, in particular hemispherical, in the first equilibrium state and bowl-shaped in the second equilibrium state. In the second equilibrium state, the switching elements 18a, 18a', 18a", 18a'", 18a"" are each curved on a side opposite the first equilibrium state. The switching elements 18a, 18a', 18a", 18a'", 18a"" are each convexly curved towards a front side in the first equilibrium state and each convexly curved towards a rear side in the second equilibrium state.The functional surfaces 20a of the switching elements 18a, 18a', 18a", 18a'", 18a"" are each formed by an upper side of a switching cap 26a, 26a', 26a", 26a'", 26a"" of the respective switching element 18a, 18a', 18a", 18a'", 18a"". The functional surfaces 20a are each arranged on the front side 46a of the oral hygiene device 10a. The functional surfaces 20a can have a label (not shown in more detail by way of example). Several switching elements 18a, 18a', 18a", 18a'", 18a"" with a corresponding label or image can, for example, be provided to be pressed in after a defined cleaning process has been completed. In the case of children's toothbrushes, for example, it would be conceivable that the switching elements 18a, 18a', 18a”, 18a'”, 18a”” are provided as control elements.For example, switching elements 18a, 18a', 18a", 18a'", 18a"" are conceivable, which are provided with morning, midday and evening labels or images, whereby the switching element 18a, 18a', 18a", 18a'", 18a"" can be pressed in after cleaning at the corresponding time of day. Alternatively, switching elements 18a, 18a', 18a", 18a'", 18a"" are conceivable, each of which, analogous to a quadrant timer, represents a quadrant to be cleaned. The switching elements 18a, 18a', 18a", 18a'", 18a"" could have corresponding labels and images for quadrant 1, quadrant 2, quadrant 3 and quadrant 4.

[0134] The switching elements 18a, 18a', 18a", 18a'", 18a"" each have a dome-shaped, in particular hemispherical, switching cap 26a, 26a', 26a", 26a'", 26a"", which is elastically deflectable. The switching caps 26a, 26a', 26a", 26a'", 26a"" are each dome-shaped, in particular hemispherical, in the first equilibrium state. The switching caps 26a, 26a', 26a", 26a'", 26a"" are each dome-shaped, in particular hemispherical, in the first equilibrium state and in the second equilibrium state. The switching caps 26a, 26a', 26a", 26a'", 26a"" each form a dome in the vertical axis 50a. The switching caps 26a, 26a', 26a", 26a'", 26a"" each have a closed contour. The shape of the switching caps 26a, 26a', 26a", 26a'", 26a"" is spherical. The switching caps 26a, 26a', 26a", 26a'", 26a"" each form at least substantially a hemisphere.The switching caps 26a, 26a', 26a", 26a'", 26a"" further have a symmetrical, round basic shape. In the first equilibrium state, the switching caps 26a, 26a', 26a", 26a'", 26a"" are each convexly curved toward a front side and in the second equilibrium state, each convexly curved toward a rear side. The switching caps 26a, 26a', 26a", 26a'", 26a"" of the switching elements 18a, 18a', 18a", 18a'", 18a"" have a diameter of 8 mm to 30 mm. Preferably, the switching caps 26a, 26a', 26a", 26a'", 26a"", each have a diameter of 8 mm to 30 mm, preferably 12 mm to 25 mm, measured particularly on the side of the rest position, at the transition to an edge web 28a. Accordingly, the length and width of the switching caps 26a, 26a', 26a", 26a'", 26a"" are also preferably 8 mm to 30 mm, preferably 12 mm to 25 mm.Furthermore, the switching caps 26a, 26a', 26a", 26a'", 26a"" of the switching elements 18a, 18a', 18a", 18a'", 18a"" each have a material thickness of 0.5 mm to 2 mm. A material thickness of the switching caps 26a, 26a', 26a", 26a'", 26a"" is preferably each from 0.8 mm to 2.5 mm. The switching caps 26a, 26a', 26a", 26a'", 26a"" each have a substantially constant layer thickness. The greatest material thickness is preferably at a high point of the respective switching cap 26a, 26a', 26a", 26a'", 26a"", whereby the material thickness is less in the region of the edge web 28a to enable switching. The switching elements 18a, 18a', 18a", 18a'", 18a"" are designed as "Pop it" or "Push pop". The switching caps 26a, 26a', 26a", 26a'", 26a"" are designed as a single "Pop it" or "Push pop" curvature.

[0135] Furthermore, the switching elements 18a, 18a', 18a", 18a'", 18a"" each have at least one at least partially circumferential edge web 28a for fixing the switching element 18a, 18a', 18a", 18a'", 18a"", wherein the switching cap 26a, 26a', 26a", 26a'", 26a"" is connected to the edge web 28a via a support edge 30a, 30a', 30a", 30a'", 30a"". The edge webs 28a are provided for a direct connection to the handle unit 14a. The edge webs 28a serve to fasten the switching elements 18a, 18a', 18a", 18a'", 18a"". The edge webs 28a each extend around the respective switching cap 26a, 26a', 26a", 26a'", 26a"" of the respective switching element 18a, 18a', 18a", 18a'", 18a"", wherein the edge web 28a of a switching element 18a, 18a', 18a", 18a'", 18a"" is designed to be spaced apart from the switching cap 26a, 26a', 26a", 26a'", 26a"" of the corresponding switching element 18a, 18a', 18a", 18a'", 18a"".The support edge 30a, 30a', 30a", 30a'", 30a"" is arranged between the switching caps 26a, 26a', 26a", 26a'", 26a"" and the edge web 28a, which connects the switching cap 26a, 26a', 26a", 26a'", 26a"" to the edge web 28a. The edge webs 28a each ensure the connection of the respective switching element 18a, 18a', 18a", 18a'", 18a"" to the handle unit 14a. The edge webs 28a each adjoin directly to an inner boundary wall of the recess 68a. The edge webs 28a are preferably integrally connected to the inner boundary wall of the recess 68a and thus to the handle base body 22a. The edge webs 28a are introduced into the recess 68a, for example, by injection molding. A positive connection is formed between the handle unit 14a and the switching element 18a, 18a', 18a", 18a'", 18a"" or its edge web 28a.The inner boundary wall of the recess 68a on the inside and / or the edge webs 28a on the outside each have at least one form-fitting extension, in particular at least one form-fitting web, which engages in a corresponding recess, in particular a groove, in order to provide a form-fitting connection between the handle base body 22a and the edge webs 28a. Alternatively, a connection can also be realized by means of adhesive bonding. Various implementations of the edge web 28a that would appear sensible to a person skilled in the art are conceivable. The edge webs 28a each extend over the entire height of the recess 68a. The edge webs 28a are essentially annular. The edge webs 28a adjoin directly on the inside of the support edge 30a, 30a', 30a", 30a'", 30a"" of the respective switching element 18a, 18a', 18a", 18a'", 18a"".The support edge 30a, 30a', 30a", 30a'", 30a"" is formed between the edge web 28a and the switching cap 26a, 26a', 26a", 26a'", 26a"" of the same switching element 18a, 18a', 18a", 18a'", 18a"". The support edges 30a, 30a', 30a", 30a'", 30a"" adjoin the respective edge web 28a on the outside, in particular on an outer circumference. Furthermore, the support edges 30a, 30a', 30a", 30a'", 30a"" adjoin the respective switching cap 26a, 26a', 26a", 26a'", 26a"" on the inside, in particular on an inner circumference. The support edges 30a, 30a', 30a", 30a'", 30a"" are each annular. The support edges 30a, 30a', 30a", 30a'", 30a"" of the edge webs 28a are round, in particular annular, and are arranged around the respective switching cap 26a, 26a', 26a", 26a'", 26a"". The support edges 30a, 30a', 30a", 30a'", 30a"" each have a width of 0.5 mm to 5 mm.Preferably, a minimum distance between the switching cap 26a, 26a', 26a", 26a'", 26a"" and the edge web 28a of the same switching element 18a, 18a', 18a", 18a'", 18a"" is from 0.5 mm to 5 mm, preferably from 0.7 mm to 3 mm. The support edges 30a, 30a', 30a", 30a'", 30a"" each have a thickness of 0.5 mm to 3 mm, preferably from 0.7 mm to 1.5 mm.

[0136] The five mechanical switching elements 18a, 18a', 18a", 18a'", 18a"" are connected to one another in one piece. The five mechanical switching elements 18a, 18a', 18a", 18a'", 18a"" are arranged next to one another. The switching elements 18a, 18a', 18a", 18a'", 18a"" are arranged in a row. The switching elements 18a, 18a', 18a", 18a'", 18a"" are arranged one behind the other along the main extension direction 54a of the oral hygiene device 10a. The switching elements 18a, 18a', 18a", 18a'", 18a"" can have different shapes and / or sizes such as length, width and height. The switching elements 18a, 18a', 18a", 18a'", 18a"" have different sizes. The switching elements 18a, 18a', 18a", 18a'", 18a"" each have a circular basic shape when viewed from the front. Furthermore, the switching elements 18a, 18a', 18a", 18a'", 18a"" each have different diameters.A diameter of the switching elements 18a, 18a', 18a", 18a'", 18a"" decreases, for example, from a lower end of the oral hygiene device 10a to the neck region 64a. The first switching element 18a has the largest diameter. A diameter of the second switching element 18a' is smaller than a diameter of the first switching element 18a. A diameter of the third switching element 18a" is smaller than a diameter of the second switching element 18a'. A diameter of the fourth switching element 18a'" is smaller than a diameter of the third switching element 18a". A diameter of the fifth switching element 18a"" is smaller than a diameter of the fourth switching element 18a'". The switching elements 18a, 18a', 18a", 18a'", 18a"" are each directly connected to one another and rest against one another. Edge webs 28a of the switching elements 18a, 18a', 18a”, 18a'”, 18a”” are in contact with one another.Preferably, the distance between the switching elements 18a, 18a', 18a", 18a'", 18a"" is each the sum of 0.5 * the diameter of a first switching cap 26a of the first switching element 18a, the width of the support edge 30a of the first switching element 18a, the width of the edge web 28a, the width of the support edge 30a' of the second switching element 18a, and 0.5 * the diameter of the second switching cap 26a' of the second switching element 18a'. The switching elements 18a, 18a', 18a", 18a'", 18a"" are arranged in the recess 68a. The switching elements 18a, 18a', 18a", 18a'", 18a"" fill the recess 68a. The switching elements 18a, 18a', 18a", 18a'", 18a"" completely close the recess 68a in a direction perpendicular to the main extension plane of the oral hygiene device 10a.The height of the recess 68a is determined in particular by the fact that the switching elements 18a, 18a', 18a", 18a'", 18a"" must hold on to the handle base body 22a and therefore sufficient fastening surface must be available. The height of the edge of the recess 68a is from 3 mm to 15 mm, preferably from 5 mm to 10 mm. The switching elements 18a, 18a', 18a", 18a'", 18a"" have a common circumferential edge web 28a. The edge webs 28a of the switching elements 18a, 18a', 18a", 18a'", 18a"" are connected to form an edge web 28a. The common edge web 28a is, in particular, geometrically continued between the switching elements 18a, 18a', 18a", 18a'", 18a"". Furthermore, the edge web 28a between two switching elements 18a, 18a', 18a", 18a'", 18a"" is designed as an elevation 72a in the same material as the switching elements 18a, 18a', 18a", 18a'", 18a"". The edge web 28a therefore does not lie against the handle base body 22a everywhere.Each of the switching elements 18a, 18a', 18a", 18a'", 18a"" therefore has a separate switching cap 26a, 26a', 26a", 26a'", 26a"" and a separate support edge 30a, 30a', 30a", 30a'", 30a"", wherein the edge webs 28a of the switching elements 18a, 18a', 18a", 18a'", 18a"" merge into one another. The handle base body 22a forms a frame with the longitudinal webs 70a, 70a', which directly encloses the common edge web 28a.

[0137] Furthermore, the handle base body 22a has a thumb grip area 32a. The handle base body 22a further has a palm grip area 74a. One of the switching elements 18a, 18a', 18a", 18a'", 18a"" is integrated into the thumb grip area 32a. For example, the fourth switching element 18a'" and / or the fifth switching element 18a"" is integrated into the thumb grip area 32a. Furthermore, the first, second, and third switching elements 18a, 18a', 18a" are integrated into the palm grip area 74a.

[0138] Figure 12 shows a system 76a with the oral hygiene device 10a and with a protective cap 38a in a schematic representation. The protective cap 38a is an oral hygiene device protective cap. In particular, the protective cap 38a is designed as a toothbrush protective cap, which is preferably intended for placement on a single toothbrush. However, in particular in the case of a differently designed oral hygiene device 10a, the protective cap 38a can also be designed differently. For example, it can be designed as a protective cap 38a for a flosser, a tongue cleaner, a single-tuft brush, an interdental cleaner, or the like. The protective cap 38a has a cap body 40a that defines at least one interior space 42a, which is intended to accommodate at least a portion of the oral hygiene device 10a.In the present case, the interior space 42a is provided for accommodating at least a portion of the application unit 12a, and in particular for accommodating the brush head 34a. The cap body 40a has at least one hanger 78a.

[0139] Reference is made below to Figures 12 to 14, which show different representations of the system 76a and the protective cap 38a. Due to the different views, some elements are not shown in all figures and are therefore not provided with reference symbols in all figures. Furthermore, for reasons of clarity, not all reference symbols of units and elements of the oral hygiene device 10a introduced in Figures 1 to 11 are shown. Where appropriate, reference is made to these figures.

[0140] In the present case, the hanger 78a is hook-shaped. The hanger 78a is designed as a U-shaped hook. When the protective cap 38a is in place, the hanger 78a is arranged above the brush head 34a of the oral hygiene device 10a. In particular, when the protective cap 38a is in place, the oral hygiene device 10a can be hung from the hanger 78a, for example, from a hook, a rod, an eyelet, a handle, a cord, or the like. In principle, other types of hangers are also conceivable, for example, magnetic hangers, hangers with suction cups, hangers with hook-and-loop material, hangers with an eyelet, or the like. Furthermore, it is also possible to design the protective cap 38a without a hanger. In the present case, the hanger 78a is designed as a hollow body. An interior of the hanger 78a is connected to the interior 42a of the cap body 40a.The hanger 78a is molded directly onto the interior space 42a. In the present case, the cap body 40a is formed as a single piece. Furthermore, the cap body 40a is formed entirely from a hard component.

[0141] The cap body 40a has at least two shell elements 80a, 80a' connected to one another in an articulated manner, in particular at least one first shell element 80a and at least one second shell element 80a'. In the present case, the shell elements 80a, 80a' essentially form mirror-symmetrical halves of the cap body 40a. What is not mirror-symmetrical is the locking mechanism of the two shell elements 80a, 80a"" for closing the protective cap 38a on the front side. The cap body 40a has a film hinge 84a on the rear side, which connects the shell elements 80a, 80a' to one another in an articulated manner. In the present case, the cap body 40a has a single film hinge 84a. The film hinge 84a is arranged on the rear side of the protective cap 38a.

[0142] The cap body 40a has a passage 82a through which, in the attached state, the neck region 64a of the oral hygiene device 10a passes into the interior 42a of the cap body 40a. Preferably, a cross-section of the passage 82a is adapted to a cross-section of the neck region 64a, whereby a certain amount of play may be provided.

[0143] Furthermore, the protective cap 38a has at least one one-piece, mechanical switching element 44a, 44a', which is fixedly arranged on the cap body 40a and consists of an elastic material and which has at least two defined, mutually different static states. The protective cap 38a has two one-piece, mechanical switching elements 44a, 44a', which are fixedly arranged on the cap body 40a and each consist of an elastic material and which have two defined, mutually different static states. Exactly one switching element 44a, 44a' is arranged on each of the shell elements 80a, 80a'. The shell elements 80a, 80a' each have a recess in which a switching element 44a, 44a' is arranged. In one variant, the switching elements 44a, 44a' switch, for example, from the inside to the outside, in particular by closing the protective cap 38a.In a further variant, the switching elements 44a, 44a' are particularly intended to clamp the application unit 12a of the oral hygiene device 10a. The protective cap 38a has, in particular, a stylized face, in particular an animal face, with the switching elements 44a, 44a' each indicating eyes.

[0144] The switching elements 44a, 44a' each have a dome-shaped, in particular hemispherical, switching cap 86a, 86a', which is elastically deflectable. The switching caps 86a, 86a' are each dome-shaped, in particular hemispherical, in the first equilibrium state. The switching caps 86a, 86a' are each dome-shaped, in particular hemispherical, in the first equilibrium state and in the second equilibrium state. The switching caps 86a, 86a' each form a dome along the vertical axis 50a. The switching caps 86a, 86a' each have a closed contour. The shape of the switching caps 86a, 86a' is spherical. The switching caps 86a, 86a' each form at least substantially a hemisphere. The switching caps 86a, 86a' also have a symmetrical, round basic shape.The switching caps 86a, 86a' are each convexly curved toward a front side in the first equilibrium state, and each convexly curved toward a rear side in the second equilibrium state. The switching elements 44a, 44a' are designed as "pop it" or "push pop" elements. The switching caps 86a, 86a' are designed as individual "pop it" or "push pop" curvatures. The switching caps 86a, 86a' are each directly connected to the shell elements 80a, 80a"". However, it would also be conceivable for a support edge and / or an edge web to be provided for connection to the cap body 40a, corresponding to the switching elements 18a, 18a', 18a", 18a'", 18a"" of the functional unit 16a of the oral hygiene device 10a.

[0145] Further exemplary embodiments of the invention are shown in Figures 15 to 26. The following description is essentially limited to the differences between the exemplary embodiments, whereby reference can be made to the description of the exemplary embodiment in Figures 1 to 14 with regard to identical components, features and functions. To distinguish the exemplary embodiments, the letter a in the reference numerals of the exemplary embodiment in Figures 1 to 14 has been replaced by the letters b to f in the reference numerals of the exemplary embodiments in Figures 15 to 26. With regard to components with the same designation, in particular with regard to components with the same reference numerals, reference can also be made to the drawings and / or the description of the exemplary embodiment in Figures 1 to 14. Figure 15 shows a partial section of a front side 46b of an oral hygiene device 10b in a schematic perspective illustration.In the present case, the oral hygiene device 10b is designed as a toothbrush. The oral hygiene device 10b has at least one application unit 12b. Furthermore, the oral hygiene device 10b has at least one handle unit 14b. The oral hygiene device 10b has a longitudinal axis, a height axis, and a width axis.

[0146] The at least one application unit 12b has a head region 58b. The head region 58b forms a brush head 34b of the application unit 12b. In the present case, the head region 58b, in particular the brush head 34b, is designed as a toothbrush head. The brush head 34b has, in particular, a base body 60b designed as a bristle carrier. The base body 60b of the brush head 34b is formed entirely from a hard component. However, it would also be conceivable for the base body 60b of the brush head 34b to be formed from a hard component and a soft component. The base body 60b of the brush head 34b forms a bristle carrier. The oral hygiene device 10b further has a cleaning region 62b received by the brush head 34b, which comprises a plurality of bristle bundles. The application unit 12b is arranged on the upper side of the oral hygiene device 10b.

[0147] Furthermore, in the present case, the application unit 12b comprises at least one neck region 64b, which in particular connects the head region 58b to the handle unit 14b. The neck region 64b forms a neck. The neck region 64b forms a transition between the application unit 12b and the handle unit 14b.

[0148] The handle unit 14b has a handle base body 22b. The handle unit 14b has at least one gripping surface 66b, which forms a surface of the handle base body 22b. The gripping surface 66b extends on the front side 46b from the neck region 64b to the lower end of the oral hygiene device 10b on the underside. The gripping surface 66b forms a domed or concave shape along a longitudinal axis. Furthermore, the handle base body 22b has a thumb grip region 32b. The handle base body 22b further has a palm grip region 74b. The domed shape is reversed along the longitudinal axis 48b on a rear side 56b. The handle base body 22b of the handle unit 14b delimits at least one recess 68b. The recess 68b extends completely through the handle base body 22b and is completely enclosed by the handle base body 22b in at least one plane.The recess 68b is completely enclosed by the handle base body 22b in a plane 24b parallel to a main extension plane of the handle unit 14b. The recess 68b is completely enclosed by the handle base body 22b in the main extension plane of the handle unit 14b. The handle base body 22b forms a frame that extends around the recess 68b. The recess 68b has a round cross-sectional shape. The recess 68b is arranged in the thumb grip area 32b. The handle base body 22b has an oval depression 88b, 90b in the thumb grip area 32b on the front side 46b and the rear side 56b. The recess 68b extends from a center of the oval recess 88b on the front side 46b through the handle base body 22b to the oval recess 90b on the rear side 56b.

[0149] Furthermore, the oral hygiene device 10b has a functional unit 16b, which is arranged on the handle unit 14b. The functional unit 16b is arranged on the handle base body 22b. The functional unit 16b is completely enclosed by the handle base body 22b in at least one plane 24b. The functional unit 16b is completely enclosed by the material handle base body 22b in the main extension plane of the handle unit 14b. The functional unit 16b is arranged in the recess 68b. The functional unit 16b at least partially fills the recess 68b. The functional unit 16b at least partially forms a gripping surface 66b of the handle unit 14b. The functional unit 16b consists entirely of a soft component.

[0150] The functional unit 16b has at least one one-piece, mechanical switching element 18b, which is made of an elastic material and which has at least two defined, mutually different static states. The functional unit 16b has precisely one one-piece, mechanical switching element 18b. The switching element 18b has precisely two defined, mutually different static states, namely a first equilibrium state, in particular an initial state, and a second equilibrium state, in particular a deflection state. In Figures 15 and 16, the switching element 18b is in the first equilibrium state. The first equilibrium state forms an unloaded state. In Figures 15 and 16, the switching cap 26b is oriented toward the front side 46b in the first equilibrium state.The switching element 18b can be brought manually by an operator, in particular by applying a pressure force to the switching element 18b from one equilibrium state to another equilibrium state.

[0151] The switching element 18b has a dome-shaped, in particular hemispherical, switching cap 26b, which is elastically deflectable. The switching cap 26b is dome-shaped, in particular hemispherical, in the first equilibrium state. The switching cap 26b is dome-shaped, in particular hemispherical, in the first equilibrium state and in the second equilibrium state. The switching cap 26b forms a dome along a vertical axis 50b. The switching cap 26b has a closed contour. The shape of the switching cap 26b is spherical. The switching cap 26b forms at least substantially a hemisphere. The switching cap 26b further has a symmetrical, round basic shape. The switching cap 26b is convexly curved toward a front side in the first equilibrium state and convexly curved toward a rear side in the second equilibrium state.

[0152] Furthermore, the switching element 18b has at least one at least partially circumferential edge web 28b for fixing the switching element 18b, wherein the switching cap 26b is connected to the edge web 28b via a support edge 30b.

[0153] The edge web 28b is provided for direct connection to the handle unit 14b. The edge web 28b serves to fasten the switching element 18b to the handle base body 22b. The edge web 28b extends around the switching cap 26b of the switching element 18b, wherein the edge web 28b of the switching element 18b is spaced apart from the switching cap 26b of the switching element 18b. The support edge 30b is arranged between the switching cap 26b and the edge web 28b, which connects the switching cap 26b to the edge web 28b. The edge web 28b ensures the connection of the switching element 18b to the handle unit 14b. Various implementations of the edge web 28b are conceivable and would be deemed appropriate by a person skilled in the art. The edge web 28b extends over the entire height of the recess 68b. The edge web 28b is essentially annular. The edge web 28b directly adjoins the support edge 30b of the switching element 18b on the inside.The support edge 30b is arranged between the edge web 28b and the switching cap 26b of the same switching element 18b. The support edge 30b directly adjoins the edge web 28b on the outside, in particular at an outer periphery. Furthermore, the support edge 30b directly adjoins the switching cap 26b on the inside, in particular at an inner periphery. The support edge 30b is annular. The support edge 30b and the edge web 28b extend in a circular, in particular annular, shape around the switching cap 26b.

[0154] The mechanical switching element 18b is integrated into the thumb grip area 32b. The functional unit 16b, in particular the switching element 18b, is arranged as a thumb grip in the thumb grip area 32b. The switching element 18b forms a pop-it thumb grip. Depending on a state or the initial equilibrium state of the switching element 18b, the thumb grip can be designed to protrude or inward, thus with a dome at the rear or front. An operator can adapt the thumb grip area 32b to their specific requirements.

[0155] Figure 17 shows a partial section of a front side 46c of an oral hygiene device 10c in a schematic perspective view. In this case, the oral hygiene device 10c is designed as a toothbrush. The oral hygiene device 10c has at least one application unit 12c. Furthermore, the oral hygiene device 10c has at least one handle unit 14c. The oral hygiene device 10c has a longitudinal axis, a height axis, and a width axis.

[0156] The at least one application unit 12c has a head region 58c. The head region 58c forms a brush head 34c of the application unit 12c.

[0157] Furthermore, in the present case, the application unit 12c comprises at least one neck region 64c, which in particular connects the head region 58c to the handle unit 14c. The neck region 64c forms a neck. The neck region 64c forms a transition between the application unit 12c and the handle unit 14c.

[0158] The handle unit 14c has a handle base body 22c. The handle unit 14c has at least one gripping surface 66c, which forms a surface of the handle base body 22c. The gripping surface 66c extends on the front side 46c from the neck region 64c to the lower end of the oral hygiene device 10c on the underside. The gripping surface 66c forms a cambered or concave shape along a longitudinal axis. Furthermore, the handle base body 22c has a thumb grip region 32c. The handle base body 22c further has a palm grip region 74c. Furthermore, the oral hygiene device 10c has a functional unit 16c, which is arranged on the handle unit 14c. The functional unit 16c is arranged on the handle base body 22c. The functional unit 16c is completely enclosed by the handle base body 22c in at least one plane.The functional unit 16c is completely enclosed by the material handle base body 22c in the main extension plane of the handle unit 14c. The functional unit 16c is arranged in a recess 68c. The functional unit 16c at least partially fills the recess 68c. The functional unit 16c at least partially forms a gripping surface 66c of the handle unit 14c. The functional unit 16c consists entirely of a soft component.

[0159] The functional unit 16c has at least one one-piece, mechanical switching element 18c, which is made of an elastic material and which has at least two defined, mutually different static states. The functional unit 16c has precisely one one-piece, mechanical switching element 18c. The switching element 18c has precisely two defined, mutually different static states, namely a first equilibrium state, in particular an initial state, and a second equilibrium state, in particular a deflection state. In Figures 17 and 18, the switching element 18c is in the first equilibrium state. The first equilibrium state forms an unloaded state. In Figures 17 and 18, the switching cap 26c is oriented toward a rear side 56c in the first equilibrium state.The switching element 18c can be brought manually by an operator, in particular by applying a pressure force to the switching element 18c, from one equilibrium state to a further equilibrium state in which the switching cap 26c is oriented in the direction of the front side 46c.

[0160] The mechanical switching element 18c is integrated into the thumb grip area 32c. The functional unit 16c, in particular the switching element 18c, is arranged as a thumb grip in the thumb grip area 32c. The switching element 18c forms a pop-it thumb grip. Depending on a state or the first equilibrium state of the switching element 18c, the thumb grip can be designed inward or outward, thus with a dome at the rear or front. A user can adapt the thumb grip area 32c to their specific requirements. Figure 19 shows a partial section of a front side 46d of an oral hygiene device 10d in a schematic perspective view. In the present case, the oral hygiene device 10d is designed as a toothbrush. The oral hygiene device 10d has at least one application unit 12d. Furthermore, the oral hygiene device 10d has at least one handle unit (not shown).The oral hygiene device 10d has a longitudinal axis, a height axis and a width axis.

[0161] The at least one application unit 12d has a head region 58d. The head region 58d forms a brush head 34d of the application unit 12d. In the present case, the head region 58d, in particular the brush head 34d, is designed as a toothbrush head. The brush head 34d has, in particular, a base body 60d designed as a bristle carrier. The base body 60d of the brush head 34d is formed entirely from a hard component. However, it would also be conceivable for the base body 60d of the brush head 34d to be formed from a hard component and a soft component. The base body 60d of the brush head 34d forms a bristle carrier. The oral hygiene device 10d further has a cleaning region 62d received by the brush head 34d, which comprises a plurality of bristle bundles 92d. At least one recess is formed on the front side of the brush head 34d.The at least one recess is provided to receive a bristle bundle 92d of the cleaning area 62d. The brush head 34d has a plurality of recesses. The recesses are formed by bristle holes, each of which is provided to receive a bristle bundle 92d. Any suitable bristles can be used as bristles for the bristle bundles 92d, which, as described above, can be punched, for example, using the anchor punching process. The cleaning area 62d has two cleaning zones 94d, 96d, namely a first cleaning zone 94d in an upper region of the brush head 34d and a second cleaning zone 96d in a lower region of the brush head 34d. The bristle bundles 92d are arranged in the first cleaning zone 94d.

[0162] The brush head 34d of the application unit 12d defines at least one recess 68d. The recess 68d extends completely through the brush head 34d and is completely enclosed by the brush head 34d in at least one plane 24d. The recess 68d is completely enclosed by the brush head 34d in a plane 24d parallel to a main extension plane of the application unit 12d. The recess 68d is completely enclosed by the brush head 34d in the main extension plane of the application unit 12d. The recess 68d has a round cross-sectional shape. The recess 68d is arranged in the second cleaning zone 96d.

[0163] The application unit 12d is arranged on the top side of the oral hygiene device 10d. Furthermore, the application unit 12d in the present case comprises at least one neck region 64d, which in particular connects the head region 58d to the handle unit. The neck region 64d forms a neck. The neck region 64d forms a transition between the application unit 12d and the handle unit.

[0164] Furthermore, the oral hygiene device 10d has a functional unit 16d, which is arranged on the application unit 12d. The functional unit 16d is arranged on the brush head 34d. The functional unit 16d is integrated into the brush head 34d. The functional unit 16d is completely enclosed by the application unit 12d in at least one plane 24d. The functional unit 16d is completely enclosed by the material application unit 12d in the main extension plane of the application unit 12d. The functional unit 16d is arranged in the recess 68d. The functional unit 16d at least partially fills the recess 68d. The functional unit 16d consists entirely of a soft component.

[0165] The functional unit 16d has at least one one-piece, mechanical switching element 18d, which is made of an elastic material and which has at least two defined, mutually different static states. The functional unit 16d has precisely one one-piece, mechanical switching element 18d. The switching element 18d has precisely two defined, mutually different static states, namely a first equilibrium state, in particular an initial state, and a second equilibrium state, in particular a deflection state. In Figures 19 and 20, the switching element 18d is in the first equilibrium state. In Figures 21 and 22, the switching element 18d is in the second equilibrium state. The first equilibrium state forms an unloaded state.Furthermore, the switching element 18d is designed to be at least partially prestressed in the second equilibrium state, in particular the deflection state. The switching element 18d can be manually moved by an operator, in particular by applying a compressive force to the switching element 18d, from one of the equilibrium states to the other equilibrium state.

[0166] The switching element 18d has a dome-shaped, in particular hemispherical, switching cap 26d, which is elastically deflectable. The switching cap 26d is dome-shaped, in particular hemispherical, in the first equilibrium state. The switching cap 26d is dome-shaped, in particular hemispherical, in the first equilibrium state and in the second equilibrium state. The switching cap 26d forms a dome along a vertical axis. The switching cap 26d has a closed contour. The shape of the switching cap 26d is spherical. The switching cap 26d forms at least substantially a hemisphere. The switching cap 26d further has a symmetrical, round basic shape. The switching cap 26d is convexly curved toward a front side in the first equilibrium state and convexly curved toward a rear side in the second equilibrium state.

[0167] Furthermore, the switching element 18d has at least one at least partially circumferential edge web 28d for securing the switching element 18d, wherein the switching cap 26d is connected to the edge web 28d via a support edge 30d. The edge web 28d is provided for direct connection to a handle unit 14d. The edge web 28d serves to fasten the switching element 18d to a handle base body 22d. The edge web 28d extends around the switching cap 26d of the switching element 18d, wherein the edge web 28d of the switching element 18d is designed to be spaced apart from the switching cap 26d of the switching element 18d. The support edge 30d is arranged between the switching cap 26d and the edge web 28d, connecting the switching cap 26d to the edge web 28d. The edge web 28d ensures the connection of the switching element 18d to the handle unit 14d. Various implementations of the edge web 28d are conceivable, which would be deemed appropriate by a person skilled in the art.The edge web 28d extends over the entire height of the recess 68d. The edge web 28d is essentially annular. The edge web 28d directly adjoins the carrier edge 30d of the switching element 18d on the inside. The carrier edge 30d is arranged between the edge web 28d and the switching cap 26d of the same switching element 18d. The carrier edge 30d directly adjoins the edge web 28d on the outside, in particular on an outer circumference. Furthermore, the carrier edge 30d directly adjoins the switching cap 26d on the inside, in particular on an inner circumference. The carrier edge 30d is annular. The carrier edge 30d and the edge web 28d extend in a circular, in particular annular, shape around the switching cap 26d.

[0168] The switching element 18d has a substantial functional surface 20d, which is convexly curved in the first equilibrium state and concavely curved in the second equilibrium state. The functional surface 20d of the switching element 18d is dome-shaped, in particular hemispherical, in the first equilibrium state and bowl-shaped in the second equilibrium state. The functional surface 20d of the switching element 18d is formed by the upper side of the switching cap 26d of the switching element 18d. The functional surface 20d is arranged on a front side 46d of the oral hygiene device 10d.

[0169] Cleaning elements 36d are arranged on the functional surface 20d. The cleaning elements 36d are formed by cleaning elements 36d of the second cleaning zone 96d. The cleaning elements 36d form the second cleaning zone 96d. The switching element 18d has the cleaning elements 36d. The cleaning elements 36d are formed integrally with a switching cap 26d of the switching element 18d. The cleaning elements 36d are injection-molded and made from a single casting with the switching element 18d. The cleaning elements 36d are, for example, formed integrally with the switching element 18d. The cleaning elements 36d are arranged protruding from the functional surface 20d. The cleaning elements 36d on the switching element 18d can be designed as bristles and / or as slats. The cleaning elements 36d are, for example, designed as injection-molded bristles.However, a different design of the cleaning elements 36d that would appear sensible to a person skilled in the art would also be conceivable. The cleaning elements 36d can form different cleaning patterns depending on the state of the switching element 18d. The switching element 18d has the function of partially customizing the cleaning field of the application unit 12d. For example, in the first equilibrium state, the switching element 18d can form a differently shaped cleaning field than in the second equilibrium state. In the first equilibrium state, the cleaning elements 36d are fanned out, for example, in a bouquet-like manner. In the second equilibrium state, the cleaning elements 36d are arranged conically, with the free ends of the cleaning elements 36d converging.Furthermore, the switching element 18d can have the function of a contact pressure control, wherein the switching element 18d with the cleaning elements 36d is pushed away in the first equilibrium state if the pressure is too high and transitions to the second equilibrium state. In the second equilibrium state, the second cleaning zone 96d is offset relative to the first cleaning zone 94d.

[0170] Figure 23 shows a partial section of a front side 46e of an oral hygiene device 10e in a schematic perspective view. In the present case, the oral hygiene device 10e is designed as a tongue cleaner. The oral hygiene device 10e has at least one application unit 12e. Furthermore, the oral hygiene device 10e has at least one handle unit (not shown). The oral hygiene device 10e has a longitudinal axis, a height axis, and a width axis.

[0171] The at least one application unit 12e has a head region 58e. The head region 58e forms a tongue cleaner head 98e of the application unit 12e. The tongue cleaner head 98e has a base body 60e. The base body 60e of the tongue cleaner head 98e has a cleaning region 62e with a cleaning surface 100e. The cleaning surface 100e is arranged on the front side 46e of the oral hygiene device 10e. However, it would also be conceivable for a cleaning surface to be arranged on the back side of the tongue cleaner head 98e. A plurality of cleaning elements 102e are arranged on the cleaning surface 100e. The cleaning elements 102e are formed by cleaning extensions. However, another design of the cleaning elements 102e that would be deemed appropriate by a person skilled in the art would also be conceivable, such as, for example, as lamellae or the like.

[0172] The tongue cleaner head 98e of the application unit 12e defines at least one recess 68e. The tongue cleaner head 98e of the application unit 12e defines a plurality of recesses 68e. The recesses 68e are arranged distributed over the tongue cleaner head 98e. The recesses 68e are arranged within the cleaning surface 100e. The recesses 68e each extend completely through the tongue cleaner head 98e and are each completely enclosed by the tongue cleaner head 98e in at least one plane. The recesses 68e are each completely enclosed by the tongue cleaner head 98e in a plane 24e parallel to a main extension plane of the application unit 12e. The recesses 68e are each completely enclosed by the tongue cleaner head 98e in the main extension plane of the application unit 12e. The recesses 68e each have a round cross-sectional shape.

[0173] The application unit 12e is arranged on the top side of the oral hygiene device 10e. Furthermore, the application unit 12e in the present case comprises at least one neck region 64e, which in particular connects the head region 58e to the handle unit. The neck region 64e forms a neck. The neck region 64e forms a transition between the application unit 12e and the handle unit.

[0174] Furthermore, the oral hygiene device 10e has a functional unit 16e, which is arranged on the application unit 12e. The functional unit 16e is arranged on the tongue cleaner head 98e. The functional unit 16e is integrated into the tongue cleaner head 98e. The functional unit 16e is completely enclosed by the application unit 12e in at least one plane 24e. The functional unit 16e is completely enclosed by the material application unit 12e in the main extension plane of the application unit 12e. The functional unit 16e is arranged in the recesses 68e. The functional unit 16e at least partially fills the recesses 68e. The functional unit 16e consists entirely of a soft component.

[0175] The functional unit 16e has at least one one-piece, mechanical switching element 18e, which consists of an elastic material and which has at least two defined static, mutually different states. The functional unit 1Be has a plurality of one-piece, mechanical switching elements 18e. The functional unit 16e has, for example, thirteen switching elements 18e. A number of switching elements 18e corresponds in particular to a number of recesses 68e. The switching elements 18e each have exactly two defined static, mutually different states, namely a first equilibrium state, in particular an initial state, and a second equilibrium state, in particular a deflection state. In Figure 23, the switching elements 18e are in the first equilibrium state. In Figure 24, the switching elements 18e are in the second equilibrium state.The first equilibrium state constitutes an unloaded state. Furthermore, the switching elements 18e are each at least partially preloaded in the second equilibrium state, in particular the deflection state. The switching elements 18e can be manually moved from one of the equilibrium states to the other equilibrium state by an operator, in particular by applying a compressive force to the switching element 18e.

[0176] The switching elements 18e each have a dome-shaped, in particular hemispherical, switching cap 26e, which is elastically deflectable. The switching caps 26e are each dome-shaped, in particular hemispherical, in the first equilibrium state. The switching caps 26e are each dome-shaped, in particular hemispherical, in the first equilibrium state and in the second equilibrium state. The switching caps 26e each form a dome along the vertical axis 50e. The switching caps 26e have a closed contour. The shape of the switching caps 26e is each spherical. The switching caps 26e each form at least substantially a hemisphere. The switching caps 26e furthermore each have a symmetrical, round basic shape. The switching caps 26e are convexly curved toward a front side in the first equilibrium state and convexly curved toward a rear side in the second equilibrium state.The switching caps 26e are each directly connected to an edge of the recesses 68e. However, it would also be conceivable for a supporting edge and / or an edge web to be additionally provided. The switching caps 26e are each arranged directly in one of the recesses 68e and fill it. The switching caps 26e are directly connected to the tongue cleaner head 98e.

[0177] The switching elements 18e each have a substantial functional surface 20e, which is convexly curved in the first equilibrium state and concavely curved in the second equilibrium state. The functional surfaces 20e of the switching elements 18e are each dome-shaped, in particular hemispherical, in the first equilibrium state and bowl-shaped in the second equilibrium state. The functional surfaces 20e of the switching elements 18e are each formed by the upper side of the switching cap 26e of the respective switching element 18e. The functional surfaces 20e are arranged on the front side 46e of the oral hygiene device 10e. Cleaning elements 36e are each arranged on the functional surfaces 20e. The switching elements 18e each have the cleaning elements 36e. The cleaning elements 36e are formed integrally with a switching cap 26e of the respective switching element 18e.The cleaning elements 36e are injection-molded and made from a single casting with the respective switching element 18e. The cleaning elements 36e are, for example, formed integrally with the respective switching element 18e. The cleaning elements 36e are arranged protruding from the respective functional surface 20e. The cleaning elements 36e on the switching element 18e can be designed as bristles and / or as slats. The cleaning elements 36e are, for example, designed as injection-molded bristles. However, another design of the cleaning elements 36e that would appear appropriate to a person skilled in the art would also be conceivable. The cleaning elements 36e can form different cleaning patterns depending on the state of the respective switching element 18e. The switching elements 18e have the function of allowing the cleaning area 62e of the application unit 12e to be partially customizable.For example, each of the switching elements 18e can form a differently shaped cleaning field in the first equilibrium state than in the second equilibrium state. In the first equilibrium state, the cleaning elements 36e on the switching caps 26e are each fanned out, for example, in particular in a bouquet-like manner. In the second equilibrium state, the cleaning elements 36e on the switching caps 26e are each arranged conically, with the free ends of the cleaning elements 36e converging. In the first equilibrium state, in particular, the cleaning elements 36e of the switching elements 18e are essentially used for tongue cleaning, while in the second equilibrium state, the cleaning elements 102e of the cleaning surface 100e are essentially used for tongue cleaning.Furthermore, the switching elements 18e can have the function of a contact pressure control, wherein the switching elements 18e with the cleaning elements 36e are pushed away in the first equilibrium state if too much pressure is applied and transition to the second equilibrium state.

[0178] Figure 25 shows a partial section of a front side 46f of an oral hygiene device 10f in a schematic perspective view. In this case, the oral hygiene device 10f is designed as a toothbrush. The oral hygiene device 10f has at least one application unit 12f. Furthermore, the oral hygiene device 10f has at least one handle unit 14f. The oral hygiene device 10f has a longitudinal axis, a height axis, and a width axis.

[0179] The at least one application unit 12f has a head region 58f. The head region 58f forms a brush head 34f of the application unit 12f. In the present case, the head region 58f, in particular the brush head 34f, is designed as a toothbrush head. The brush head 34f has, in particular, a base body 60f designed as a bristle carrier. The base body 60f of the brush head 34f is formed entirely from a hard component. However, it would also be conceivable for the base body 60f of the brush head 34f to be formed from a hard component and a soft component. The base body 60f of the brush head 34f forms a bristle carrier. The oral hygiene device 10f further has a cleaning region 62f received by the brush head 34f, which comprises a plurality of bristle bundles. At least one recess is formed on the front side of the brush head 34f.The at least one recess is provided for receiving a bristle bundle of the cleaning area 62f. The brush head 34f has a plurality of recesses. The recesses are formed by bristle holes, each of which is provided for receiving a bristle bundle. Any suitable bristles can be used for the bristle bundles, which, as described above, can be punched, for example, using the anchor punching process.

[0180] The application unit 12f is arranged on the top side of the oral hygiene device 10f. Furthermore, the application unit 12f in the present case comprises at least one neck region 64f, which in particular connects the head region 58f to the handle unit 14f. The neck region 64f forms a neck. The neck region 64f forms a transition between the application unit 12f and the handle unit 14f.

[0181] Furthermore, the oral hygiene device 10f has a functional unit 16f, which is arranged on the application unit 12f. The functional unit 16f is arranged on the brush head 34f. The functional unit 16f is integrated into the brush head 34f. The functional unit 16f is arranged on an outer side of the brush head 34f. The functional unit 16f consists entirely of a soft component.

[0182] The functional unit 16f has at least one one-piece, mechanical switching element 18f, which is made of an elastic material and which has at least two defined, static, mutually different states. The functional unit 16f has precisely one one-piece, mechanical switching element 18f. The switching element 18f has precisely two defined, static, mutually different states, namely a first equilibrium state, in particular an initial state, and a second equilibrium state, in particular a deflection state. In Figure 25, the switching element 18f is in the first equilibrium state. In Figure 26, the switching element 18f is in the second equilibrium state. The first equilibrium state forms an unloaded state. Furthermore, the switching element 18f is at least partially prestressed in the second equilibrium state, in particular the deflection state.The switching element 18f can be manually moved from one of the equilibrium states to the other equilibrium state by an operator, in particular by applying a compressive or tensile force to the switching element 18f. For this purpose, the switching element 18f is, in particular, folded over.

[0183] The switching element 18f is formed by a switchable, in particular foldable, collar. The switching element 18f can form a combination of a switching cleaning and / or massage element and a switching tongue cleaner. When folded up, the switching element 18f can serve as an additional cleaning element or massage element around the cleaning area 62f, which at least partially surrounds a bristle field of the brush head 34f. When folded down, the switching element 18f can serve as a tongue cleaner, while the bristle field is free of an additional cleaning element. The switching element 18f has a U-shaped wall 104f, which extends in a U-shape around an upper edge of the brush head 34f. The wall 104f delimits, in particular, three sides of the brush head 34f.An upper free edge of the wall 104f of the switching element 18f points in the first equilibrium state toward the front side 46f of the oral hygiene device 10f and in a second equilibrium state toward a rear side 56f of the oral hygiene device 10f. The wall 104f of the switching element 18f has, in particular, a maximum height transverse to a longitudinal axis 48f at an uppermost point of the oral hygiene device 10f. The wall 104f of the switching element 18f tapers off, in particular, toward the neck region 64f. Further structures can be attached to the edge or surface of the switching element 18f, in particular on the upper free edge of the wall 104f. The structures serve, in particular, to assist cleaning, such as, for example, tongue cleaning in one case and / or teeth cleaning in the other case.A free edge of the switching element 18f can have various designs that appear appropriate to a person skilled in the art, such as not straight, but wavy, continuous or discontinuous, with knobs on the edge and / or with small bristles on the edge. The side surfaces of the.

[0184] The switching element 18f could be provided with recesses, such as blind holes or through holes, and / or with nubs. Alternatively or additionally, the switching element 18f can have a structure, such as an eroded structure. Alternatively, a combination of a switching head holder and a switching tongue cleaner would also be conceivable. When folded up, the switching element 18f can serve as a head holder, which at least partially surrounds a bristle field of the brush head 34f, and when folded down, it can serve as a tongue cleaner.

[0185] List of reference symbols

[0186] 10 oral hygiene products

[0187] 12 Application unit

[0188] 14 Handle unit

[0189] 16 functional unit

[0190] 18 Switching element

[0191] 20 functional areas

[0192] 22 Handle body

[0193] 24 levels

[0194] 26 Switch cap

[0195] 28 Edge web

[0196] 30 carrier edge

[0197] 32 Thumb grip area

[0198] 34 brush head

[0199] 36 Cleaning element

[0200] 38 protective cap

[0201] 40 cap bodies

[0202] 42 Interior

[0203] 44 Switching element

[0204] 46 Front

[0205] 48 Longitudinal axis

[0206] 50 Height axis

[0207] 52 Width axis

[0208] 54 Main direction of extension

[0209] 56 Back head area

[0210] Basic body

[0211] Cleaning area

[0212] neck area

[0213] Grip surface

[0214] recess

[0215] Longitudinal web

[0216] Survey

[0217] Palm grip area

[0218] system

[0219] hanger

[0220] Shell element

[0221] Implementation

[0222] film hinge

[0223] Switch cap

[0224] Deepening

[0225] Deepening

[0226] bundle of bristles

[0227] Cleaning zone

[0228] Cleaning zone

[0229] Tongue cleaner head

[0230] Cleaning area

[0231] Cleaning element

[0232] wall

Claims

Claims 1 . Personal care product, in particular oral hygiene product, with at least one application unit (12a-f), with at least one handle unit (14a; 14b; 14c; 14f) and with at least one functional unit (16a-f) which is arranged on the application unit (12a-f) and / or the handle unit (14a; 14b; 14c; 14f), characterized in that the at least one functional unit (16a-f) has at least one, in particular one-piece, mechanical switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f ), which consists of an elastic material and which has at least two defined static, mutually different states.

2. Personal care product according to claim 1, characterized in that the at least one switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f) has exactly two defined static, mutually different states, namely a first equilibrium state, in particular an initial state, and a second equilibrium state, in particular a deflection state.

3. Personal care product according to claim 2, characterized in that the at least one switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f) has an essential functional surface (20a-f) which is convexly curved in particular in the first equilibrium state and concavely curved in the second equilibrium state.

4. Personal care product according to one of the preceding claims, characterized in that the functional unit (16a; 16e) has at least three mechanical switching elements (18a, 18a', 18a", 18a'", 18a""; 18e), which each consist of an elastic material and which each have at least two defined static, mutually different states.

5. Personal care product according to one of the preceding claims, characterized in that the handle unit (14a; 14b; 14c) has at least one handle base body (22a; 22b; 22c), wherein the functional unit (16a; 16b; 16c) is arranged on the handle base body (22a; 22b; 22c).

6. Personal care product according to claim 5, characterized in that the functional unit (16a; 16b; 16c) is completely enclosed by the handle base body (22a; 22b; 22c) in at least one plane (24a).

7. Personal care product according to one of the preceding claims, characterized in that the functional unit (16a-f) consists entirely of a soft component.

8. Personal care product according to one of the preceding claims, characterized in that the at least one switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f) has at least one dome-shaped, in particular hemispherical, switching cap (26a, 26a', 26a", 26a'", 26a""; 26b; 26c; 26d; 26e; 26f) which is elastically deflectable.

9. Personal care product according to claim 8, characterized in that the at least one switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f) at least one at least partially circumferential edge web (28a-f) for fixing the switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f ), wherein the switching cap (26a, 26a', 26a", 26a'", 26a""; 26b; 26c; 26d; 26e; 26f) is connected to the edge web (28a; 28b; 28c; 28e; 28f) via a support edge (30a, 30a', 30a", 30a'", 30a""; 30b; 30c; 30e; 30f).

10. Personal care product according to one of the preceding claims, characterized in that the functional unit (16a) has at least two mechanical switching elements (18a, 18a', 18a", 18a'", 18a"") which are connected to one another in one piece. 11 . Personal care product according to one of the preceding claims, characterized in that the functional unit (16a) has at least two mechanical switching elements (18a, 18a', 18a", 18a'", 18a""), which have a common circumferential edge web (28a).

12. Personal care product according to at least claim 5 and 11, characterized in that the handle base body (22a) forms a frame which directly encloses the edge web (28a).

13. Personal care product according to claim 5, characterized in that the handle base body (22a; 22b; 22c) has at least one thumb grip area (32a; 32b; 32c), wherein the at least one mechanical switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c) is integrated into the thumb grip area (32a; 32b; 23c).

14. Personal care product according to one of the preceding claims, characterized in that the application unit (12d; 12f) has at least one brush head (34d; 34f), wherein the functional unit (16d; 16f) is integrated into the brush head (34d; 34f).

15. Personal care product according to claim 14, characterized in that the at least one switching element (18d; 18e) has a substantial functional surface (20d; 20e), wherein cleaning elements (36d; 36e) are arranged on the functional surface (20d; 20e).

16. Personal care product according to claim 15, characterized in that the at least one switching element (18d; 18e) has the cleaning elements (36d; 36e), wherein the cleaning elements (36d; 36e) are formed integrally with a switching cap (26d; 26e) of the switching element (18d; 18e).

17. Personal care product at least according to claim 15, characterized in that the cleaning elements (36d; 36e) form different cleaning patterns depending on a state of the switching element (18d; 18e).

18. Personal care product at least according to claim 8, characterized in that the switching cap (26a, 26a', 26a", 26a'", 26a""; 26b; 26c; 26d; 26e; 26f) of the at least one switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f) has a diameter of 8 mm to 30 mm.

19. Personal care product at least according to claim 8, characterized in that the switching cap (26a, 26a', 26a", 26a'", 26a""; 26b; 26c; 26d; 26e; 26f) of the at least one switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f) has a material thickness of 0.5 mm to 2.5 mm.

20. Personal care product at least according to claim 9, characterized in that the carrier edge (30a, 30a', 30a", 30a'", 30a""; 30b; 30c; 30d; 30e; 30f) of the at least one switching element (18a, 18a', 18a", 18a'", 18a""; 18b; 18c; 18d; 18e; 18f) has a width of 0.5 mm to 5 mm. 21 . Protective cap for a personal care product (10a), in particular for an oral hygiene product, in particular according to one of the preceding claims, with at least one, advantageously one-piece, cap body (40a) which defines at least one interior space (42a) which is provided for receiving at least one part, preferably at least one part of an application unit (12a), of the oral hygiene product (10a), characterized by at least one, in particular one-piece, mechanical switching element (44a, 44a') which is fixedly arranged on the cap body (40a), which consists of an elastic material and which has at least two defined static, mutually different states.

22. A method for producing a personal care product (10a) according to one of claims 1 to 20 and / or a protective cap (38a) according to claim 21.

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