EP4312661A1 - Brosse à dents manuelle - Google Patents

Brosse à dents manuelle

Info

Publication number
EP4312661A1
EP4312661A1 EP22720560.6A EP22720560A EP4312661A1 EP 4312661 A1 EP4312661 A1 EP 4312661A1 EP 22720560 A EP22720560 A EP 22720560A EP 4312661 A1 EP4312661 A1 EP 4312661A1
Authority
EP
European Patent Office
Prior art keywords
toothbrush
handle
elements
manual
handle element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22720560.6A
Other languages
German (de)
English (en)
Inventor
Curt Bättig
Peter Stieger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4312661A1 publication Critical patent/EP4312661A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0075—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being adjustable and stable during use
    • A46B5/0079—Adjustable and stable shaft or handle, e.g. generally in one piece
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0075—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being adjustable and stable during use
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
    • A46B5/007—Inserts made of different material, e.g. springs, plates
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand

Definitions

  • the present invention relates to a manual toothbrush according to the preamble of claim 1.
  • Toothbrushes with spring elements are known per se.
  • a typical example of this is the toothbrush by Dr. Best, in which spring elements are incorporated at various points on the toothbrush neck.
  • EP 1 850692 B1 discloses a toothbrush neck with a free space between two struts. Although these are arranged one above the other in a direction parallel to the burrs, they have stiffening ribs within the free space between the struts. The stiffening ribs prevent the struts from deforming towards one another.
  • a force is applied which a normally developed person, ie a man, a woman or a child, can typically apply with one hand without excessive exertion.
  • a force is preferably at most 10 N or less.
  • DE 202006001 055 U discloses a mechanism on two opposing curved elements, with a restoring force being built up by actuating one curved element.
  • the curved element is freely movable on one side and is supported against a stop surface.
  • the problem here is, on the one hand, the complicated structure in terms of manufacture, but also the high, selective force supply in order to deflect the toothbrush head.
  • WO 2003/039816 A1 then discloses a toothbrush which has a large number of round holes in the handle.
  • the flat toothbrush according to the invention comprises a toothbrush head, a toothbrush neck and a toothbrush handle, the toothbrush head having tooth cleaning elements, in particular bristles, which protrude from the brush head in a first direction.
  • the tooth-cleaning elements can be permanently connected to the toothbrush head, e.g. injected, or they can be arranged interchangeably on a carrier plate in a recess.
  • the toothbrush handle has a first handle element and a second handle element, which extend adjacent to one another and spaced apart from one another in the direction of flap extension. A free space is thus arranged between the handle elements.
  • the handle elements can be designed like leaf springs.
  • the first handle element is arranged above or below the second handle element, with “above” or “below” referring to a second direction parallel to the first direction, ie a direction parallel to the bristles.
  • rubber knobs, friction elements and the like can also be provided as tooth cleaning elements. However, because of their excellent cleaning properties, bristles are preferred over other tooth-cleaning elements.
  • Both gripping elements end at both ends in connection areas, in which they are preferably brought together to form a cohesive unit.
  • the action of force on at least one of the handle elements of the toothbrush handle can result in a deformation of this handle element on the other handle element, which can result in the formation of a restoring force between the handle elements and which can result in a deflection of the toothbrush head.
  • the second handle element can preferably be longer than the first handle element in the main direction of extent of the toothbrush, so that deformation of this handle element under the action of force preferably results in material pressure or material tension on the second handle element, which then moves with an evasive movement, building up a restoring force reacts. A spring effect can thereby be achieved. Due to the evasive movement, the toothbrush head can be deflected in the direction of the bristles or in the opposite direction and thus pressed more firmly against the tooth for more effective cleaning.
  • a first of the connecting areas forms the toothbrush neck.
  • the first gripping element for restoring force reinforcement has a first bend in the direction of the second gripping element adjacent to the first connection region and then a second bend, which is directed away from the second gripping element.
  • suspension can also be provided by bending or deflecting the grip elements in the same direction with a greater force applied, resulting in an evasive movement with excessive pressure on the tooth and gums. Suspension by means of gripping elements is not known from the prior art.
  • the handle elements can be designed as curved leaf springs in order to build up a corresponding restoring force.
  • the leaf springs are here vorzugswei se made of plastic.
  • the handle elements each have at least one bend, with the bends being directed away from one another, so that a correspondingly improved deflection effect is achieved.
  • the gripping elements can be conveniently connected to one another in one piece, in particular monolithically, in terms of manufacturing technology.
  • at least the toothbrush handle and the toothbrush neck, preferably also the toothbrush head, apart from the bristles, is designed in one piece and in particular monolithically.
  • the manual toothbrush is advantageously designed as a plastic injection molded part.
  • the handle elements are preferably designed in such a way that they can be moved toward one another by at least 5 mm, preferably at least 10 mm, under a force of 10 N.
  • the grip elements can have a thickness of less than 3 mm, preferably between 1-2 mm, with a width for resting the hand or a thumb of at least 12 mm, preferably between 15-25 mm.
  • the toothbrush neck has a thickness in the first direction of more than 3.5 mm, preferably between 4-5 mm.
  • the distance between the gripping elements can be more than 5 mm, preferably more than 10 mm, particularly preferably 10-15 mm.
  • At least the toothbrush handle can consist of one or more biodegradable plastics and/or renewable plastics.
  • Biodegradable plastics have particular advantages when it comes to recycling, while plastics made from renewable raw materials give manual toothbrushes a better ecological footprint.
  • both plastic categories can also be combined with one another, so that there are plastics that fall under both classes.
  • Plastics from the class of polycalocatones, polyvinyl alcohols and/or polyesters are suitable for use.
  • biodegradable plastics made from renewable raw materials are e.g. starch blends, polyhydroxyalkanoates, polylactides, regenerated cellulose.
  • the distance between the terminal connecting areas can advantageously be at least 40%, preferably at least 50%, of the overall length of the manual toothbrush.
  • the handle elements are spaced apart from one another and define a free space.
  • the free space extends without interruptions, for example due to stiffening ribs or the like, from the first connection area to the second connection area.
  • a receptacle for an interdental brush in the second terminal connection area This can be a hole in the connection area into which the base of an interdental brush can be inserted.
  • the manual toothbrush can have a widening of the toothbrush handle compared to the toothbrush neck by at least 300%, preferably at least 350%, so that a wide contact surface is provided, e.g. for a thumb.
  • the tooth-cleaning elements in particular the bristles, can be arranged on a plate-shaped carrier which is arranged interchangeably in a receptacle of the toothbrush head.
  • the bristles and/or the plate-shaped carrier can be made of a natural material, preferably of vegetable and/or animal origin.
  • the bristles are, for example, animal hair bristles, e.g., pig bristles.
  • Examples of a carrier material are, for example, wood or wood composite material, for example with PLA (polylactic acid or the like). This means that the manual toothbrush can be used longer than the replaceable tooth cleaning elements. There is no mixing of materials, so that the individual elements can be recycled separately and are particularly environmentally friendly.
  • FIG. 1 perspective view of an embodiment of a manual toothbrush according to the invention
  • FIG. 2 plan view of the manual toothbrush of FIG. 1; and FIG. 3 side view of the manual toothbrush of FIGS. 1 and 2.
  • Fig. 1-3 shows a first embodiment of a manual toothbrush 1 according to the invention, hereinafter also called spring toothbrush. This has a toothbrush head 2, a tapered toothbrush neck 3 and a toothbrush handle 4 on.
  • the toothbrush head 2 has tooth-cleaning elements 11, specifically bristles, which protrude from a carrier segment of the toothbrush head 2 in a bristling direction R1.
  • a special feature of the manual toothbrush 1 is the toothbrush handle 4. This is divided in the middle and has two individual handle elements 5 and 6 which are spaced apart from one another.
  • the grip elements 5 and 6 are designed to be of different lengths in their longitudinal extension, each merging into a connection region 7 and 8 at the ends, in which they are connected to one another in a materially bonded manner.
  • the first connection area 7 forms the toothbrush neck 3 and the second connection area is the end section of the manual toothbrush and has a receptacle 9 for an interdental brush.
  • a free space 10 is arranged between the handle elements 5 and 6, the handle elements 5 and 6 being arranged in a second direction R2 parallel to the first direction R1, one above the other and preferably congruently with one another.
  • the maximum width 20 of the toothbrush handle 4 is preferably more than 15 mm, so that there is a sufficiently large thumb rest for optimum power transmission.
  • the handle element 6 has a first bend 12 away from the handle element 5 .
  • the grip element 5 initially has, starting from the toothbrush neck 7, a first bend 14 towards the grip element 6 and then a second bend 13 from the grip element 6 away.
  • the distance 15 between the handle elements 5 and 6 is in the illustrated embodiment example between 10-15 mm.
  • the longitudinal extent 16 of the free space 10 is at least 40%, preferably 50%, and particularly preferably between 55-80%, of the total length 17 of the manual toothbrush 1. This can be between 17-22 cm.
  • the construction is material-saving, since the handle elements designed as leaf springs can be made very thin, e.g. 1-2 mm thick.
  • the thickness is identified by reference numeral 19 in FIG.
  • the thickness 18 of the connecting region 7, on the other hand, is preferably more than 3 mm.
  • the manual toothbrush is built up monolithically and is therefore made in one piece from one material.
  • the pressure on the tooth surface or gums is reduced by the handle elements and their springs, but can still be adjusted manually.
  • the deflection A of the brush head 2 with complete pressure on the handle elements 5 and 6, and their defor tion by about 15 mm, can be about 12 mm. Thanks to the wide handle 4, the spring brush sits well and comfortably in the hand.
  • the hand brush 1 allows a pleasant feel and conveys a visually appealing overall impression.
  • the spring toothbrush can be used in all ways, i.e. with an exchangeable brush head, brush head on both sides, but also as a holder for brushes between the teeth. Furthermore, the free space 10 between the handle elements 5 and 6 allows space for hanging up the hand brush.
  • the manual toothbrush 1 with a spring function can be light, in particular 5-15 g, and is particularly resistant to dentifrices, mouthwashes and/or saliva.
  • Standard polymers such as polypropylene and thermoplastic elastomers, or TPE for short, are therefore preferred as materials.
  • TPE thermoplastic elastomers
  • the thermoplastic polyester elastomers are the preferred choice.
  • the entire manual tooth brush, apart from the bristles, is made of a single material and is therefore easy to manufacture.
  • TPE-E polypropylene and TPE-E also fulfill this.
  • TPE-E elastomers are FDA cleared for use in dry food contact and for packaging meat and poultry (VSDA) and drinking water facilities (NSF).
  • VSDA meat and poultry
  • NSF drinking water facilities
  • Hytrel is used in the production and distribution of beer.
  • an ecological variant can also be used as the material for the manual toothbrush 1 .
  • So-called biodegradable polymers So-called biodegradable polymers.
  • Another particularly preferred variant in the ecological field is polylactide (PLA), also called polylactic acid. This is one of the polyesters and is made up of many chemically bonded lactic acid molecules.
  • the two handle elements 5 and 6 have the same average thickness.
  • the free space between the gripping elements 5 and 6 tapers towards the connection areas 7 and 8, as can also be seen in FIG.
  • the free space between the handle elements also has at least one longitudinal extension that extends over more than half the total length of the toothbrush.
  • the toothbrush neck 3 is twice as thick as the handle elements 5 and 6 from the point at which the handle elements 5 and 6 meet up to the toothbrush head 2. It has a contour curve that gradually increases towards the toothbrush head 2.
  • the free space then has a significantly longer, greater extent in the longitudinal direction of the manual toothbrush than in the direction perpendicular to this longitudinal direction in the side view.

Landscapes

  • Brushes (AREA)

Abstract

L'invention concerne une brosse à dents manuelle comprenant une tête de brosse à dents, un col de brosse à dents et un manche de brosse à dents, la tête de brosse à dents comprenant des éléments de nettoyage de dents, en particulier des poils, qui font saillie dans une première direction à partir de la tête de brosse à dents ; le manche de brosse à dents comprenant un premier élément de manche et un second élément de manche qui sont espacés l'un de l'autre ; le premier élément de manche s'étendant au-dessus ou en dessous du second élément de manche, sur la base d'une seconde direction parallèle à la première direction ; et les deux éléments de manche menant, de part et d'autre, à l'extrémité, dans une zone de raccordement commune ; en particulier, en appliquant une force sur au moins un des éléments de manche du manche de brosse à dents, la déformation de cet élément de manche vers l'autre élément de manche entraîne la production d'une force de rappel entre les éléments de manche et la déviation de la tête de brosse à dents ; une première zone parmi les zones de raccordement (7) forme le col de la brosse à dents (3) ; et la première zone de raccordement étant adjacente à la première zone de raccordement (7), le premier élément de manche présentant une première courbure (14) vers le second élément de manche (6) pour augmenter la force de rappel, et ensuite une seconde courbure (13), qui est éloignée du second élément de manche (6).
EP22720560.6A 2021-03-31 2022-03-30 Brosse à dents manuelle Pending EP4312661A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021108254.4A DE102021108254B4 (de) 2021-03-31 2021-03-31 Handzahnbürste
PCT/EP2022/058408 WO2022207702A1 (fr) 2021-03-31 2022-03-30 Brosse à dents manuelle

Publications (1)

Publication Number Publication Date
EP4312661A1 true EP4312661A1 (fr) 2024-02-07

Family

ID=81579439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22720560.6A Pending EP4312661A1 (fr) 2021-03-31 2022-03-30 Brosse à dents manuelle

Country Status (3)

Country Link
EP (1) EP4312661A1 (fr)
DE (1) DE102021108254B4 (fr)
WO (1) WO2022207702A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29613634U1 (de) * 1996-08-07 1996-10-10 Günther, Stefan, Dipl.-Ing., 46284 Dorsten Zahnbürste mit verstellbarem Kopf
DE29913656U1 (de) 1999-08-05 1999-11-04 Koch Hansgeorg Zahnbürste
JP2001211936A (ja) 1999-11-25 2001-08-07 Johnson & Johnson Kk 歯清掃部材用の柄
DE10154969B4 (de) 2001-11-08 2007-06-28 König, Kaspar Griff für Gebrauchsgegenstände
DE102005008199A1 (de) 2005-02-22 2006-08-31 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Zahnbürste mit aktivem Anformelement
DE202006001055U1 (de) 2006-01-23 2006-03-16 Scholze, Jürgen Zahnbürste
DE202012001097U1 (de) 2012-02-03 2012-03-06 Sanithay Gmbh Bio-Zahnbürste

Also Published As

Publication number Publication date
DE102021108254A1 (de) 2022-10-06
WO2022207702A1 (fr) 2022-10-06
DE102021108254B4 (de) 2024-04-11

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