EP2779938A1 - Toothbrush having a terminal row of bristles or spikes - Google Patents

Toothbrush having a terminal row of bristles or spikes

Info

Publication number
EP2779938A1
EP2779938A1 EP11796751.3A EP11796751A EP2779938A1 EP 2779938 A1 EP2779938 A1 EP 2779938A1 EP 11796751 A EP11796751 A EP 11796751A EP 2779938 A1 EP2779938 A1 EP 2779938A1
Authority
EP
European Patent Office
Prior art keywords
toothbrush
brushing
rotation
axis
spacer
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.)
Withdrawn
Application number
EP11796751.3A
Other languages
German (de)
French (fr)
Inventor
Thierry André Christian Vallet
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 EP2779938A1 publication Critical patent/EP2779938A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/24—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously
    • A61C17/26—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0055—Brushes combined with other articles normally separate from the brushing process, e.g. combs, razors, mirrors
    • A46B15/0081—Brushes with a scraper, e.g. tongue scraper
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/0095—Removable or interchangeable brush heads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
    • 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
    • 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
    • A46B2200/1086—Toothbrush for cleaning animal teeth specifically
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/349—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with multiple brush bodies

Definitions

  • the present invention relates to the general field of oral hygiene instruments, and more particularly to the field of toothbrushes for human or veterinary use.
  • the present invention relates more particularly to a toothbrush comprising a handle type support member, and a first toothbrushing member rotatably mounted on said support member, about an axis of rotation (XX 1 ).
  • said first brush member having a lateral surface which extends along its axis of rotation (XX ') between a proximal end facing the support member and an opposite distal end, said lateral surface being adapted to be brought into contact with the teeth to ensure cleaning.
  • toothbrushes for improving the brushing action, among which toothbrushes having a brushing member which is in the form of a rotating roller which tangentially approaches the face of the tooth. to perform a brushing movement oriented from the gum to the tooth.
  • toothbrushes are generally provided with spacers partially covering the brush member, opposite the active zone where it comes into contact with the tooth, so as to form a screen between said brushing member in motion and neighboring mucous membranes, and so avoid any irritation or injury to them.
  • toothbrushes have undeniable advantages, they may however suffer from certain disadvantages.
  • the known spacers tend to hinder the access of the brush member to the teeth, particularly in the narrow or remote areas of the mouth, which can naturally affect the overall effectiveness of brushing.
  • the objects assigned to the present invention seek to overcome the disadvantages enumerated above and to propose a new toothbrush structure particularly simple, compact and inexpensive, which allows an efficient and comfortable brushing.
  • Another object of the invention is to provide a new toothbrush that can easily access all areas of the mouth to be brushed.
  • Another object assigned to the invention is to provide a new toothbrush that is particularly respectful of both teeth or gums or mucous membranes, and whose use is particularly atraumatic.
  • Another object assigned to the invention is to provide a modular toothbrush that is particularly easy to assemble and maintain.
  • the objects assigned to the invention are attained by means of a toothbrush comprising:
  • a first toothbrushing member rotatably mounted on said support member about an axis of rotation (XX '), said first brushing member having a lateral surface which extends along its axis of rotation; (XX ') between a proximal end, facing the support member, and an opposite distal end, said side surface being intended to be brought into contact with the teeth for cleaning purposes,
  • said toothbrush being characterized in that it comprises a flexible liner, distinct from the first brush member, which is arranged vis-à-vis the distal end of said first brushing member, in the axial extension thereof and substantially transversely to the axis of rotation (XX '), so as to overlap at least the cross section of said first brush member.
  • a toothbrush spreader provided with a rotary brushing member, said spacer being intended to partially cover the lateral surface of the rotary brushing member of the toothbrush.
  • said toothbrush so as to protect the adjacent mucous membranes of the teeth from the action of said brush member, said spacer having an axial housing adapted to receive said brush member, said housing having a proximal access passage allowing the passage of the brush; motor shaft for driving the brushing member, said housing being bordered by a protective wall for recourse at least in part, along the axis of rotation, the lateral surface of said brush member, said spacer being characterized in that it comprises a flexible lining disposed transversely to the axis of rotation (XX ') so as to delimit the axial housing opposite the distal end of the gold brushing, in the axial extension thereof, and overlapping with the cross section of said brush member.
  • Figure 1 illustrates, in a perspective view, an embodiment of toothbrush according to the invention
  • Figure 2 illustrates, in a side view, the toothbrush shown in Figure 1;
  • Figure 3 illustrates, in a sectional view in the sagittal plane, the toothbrush shown in Figure 2;
  • Figure 4 illustrates, in a bottom view in section in the median plane of the toothbrush, the toothbrush shown in Figures 1 to 3;
  • FIG. 5 illustrates, in a front view, the toothbrush shown in FIGS. 1 to 4;
  • - Figure 6 illustrates, in a partial detail view in perspective, the head of the toothbrush shown in the preceding figures;
  • FIG. 7 corresponds to an exploded perspective view of the toothbrush shown in Figures 1 to 6.
  • the present invention relates to a toothbrush 1 for maintaining oral hygiene by removing food debris and dental plaque.
  • the present invention particularly relates to a toothbrush intended for humans, but it can perfectly be adapted for veterinary use, for example for livestock or companion animals.
  • the toothbrush 1 comprises a support member 2 as well as at least a first toothbrushing member 3.
  • the support member 2 allows the user to manipulate the brushing member 3, and in particular to substantially control its position and its orientation in space, as well as its pressure in contact with the teeth 4.
  • toothbrush It is of course not limited to a particular embodiment, but is preferably intended for direct manual gripping of the toothbrush and may include a handle.
  • said support member 2 is in the form of an elongated rod preferably having a geometry of revolution, and may advantageously comprise a bulge 2A, axially followed by a constriction 2B, then, preferably a 2C breech expanded, for example substantially hemispherical, so that said support 2 has an ergonomic shape that facilitates handling.
  • the brushing member 3 is rotatably mounted on (and with respect to) the support member 2, about an axis of rotation (XX ').
  • Said brushing member 3 has a lateral surface 3L which extends, along its axis of rotation (XX '), between a proximal end 3P which is directed towards the support member 2, and an opposite 3D distal end.
  • Said lateral surface 3L is intended to be brought into contact with the teeth to ensure cleaning, in this case by an abrasive mechanical brushing action.
  • the brushing member 3 will preferably comprise flexible elements, whose virtual envelope covering the outer surface corresponds to said lateral surface 3L, and is intended to come into contact with the teeth and the gingiva.
  • Said flexible elements of the first brushing member may preferably be formed by a plurality of bristles or pins, preferably synthetic material, which project substantially radially relative to a core of rigid material materializing the axis of rotation (XX ') .
  • the diameter, (in length, shape and flexibility of the bristles or pins will be defined by those skilled in the art depending on the destination of the brush, including the sensitivity of the user.
  • the bristles or pins of the first brushing member may of course be arranged regularly, possibly in tufts, of equal or different length, contiguous or otherwise spaced from each other, the physical surface of the brushing member 3 may optionally present irregularities in its contour, for example an alternation of hollows and bumps, possibly interstices, or even a flute for the evacuation of debris.
  • the lateral surface 3L refers to the virtual envelope, between the proximal end 3P and the distal end 3D, in which flexible elements are inserted. filling the brushing member 3.
  • said lateral surface 3L, and more particularly the brushing member 3 has substantially a shape of revolution about the axis of rotation (XX '), or at least an invariant geometry by rotation about said axis.
  • the brushing member 3 may have a substantially cylindrical geometry, preferably circular base and rectilinear generatrix corresponding to the axis (XX ').
  • the lateral surface 3L may advantageously correspond to the curved side wall of said cylinder, while the proximal end 3P and distal 3D may correspond to the planar circular base surfaces of said cylinder , normal to the axis (XX ').
  • the shape of the brush member may be varied, said brush member 3 may have a constant or variable cross section along the axis (XX '), and in particular a profile corrugated, or have a substantially ovoid or ellipsoid shape whose 3D proximal and distal 3D ends form the vertices.
  • the length L of the brushing member 3 is preferably substantially greater than its overall diameter D 3 , said length being for example between 15 mm and 30 mm, and preferably around 25 mm. while the overall diameter D 3 of its wider section may be between 12 mm and 15 mm.
  • the brushing member 3 forms a "longitudinal rotation” brush which makes it possible to perform a tangential brushing of the teeth 4 according to the so-called “roller” method, that is to say according to an oriented sweeping movement of the tooth. gum to the tooth, which combines the mechanical efficiency of brushing with the respect of the gums.
  • the toothbrush 1 is arranged in such a way that, during the brushing, the user can bring the lateral surface 3L of the brushing member 3 at a tangent approach against the surface of the tooth 4, at an area called "active zone" 5, the axis of rotation (XX ') then being substantially parallel to the main extension direction of the gingiva and the face of the treated tooth, as shown schematically in Figure 2.
  • the toothbrush 1 comprises a single rotary brushing member 3, which in particular simplifies its structure and improves its compactness.
  • the toothbrush 1 also comprises driving means 6 capable of rotating the brushing member 3 about its axis (XX 1 ) by transmitting a torque and a speed to the latter. sufficient to enable it to exert its mechanical action, by friction in contact with the teeth.
  • the drive means 6 may comprise an electric motor 7, powered by a battery or batteries 8 and whose output shaft 9 is engaged with a transmission element 10, of shaft or spindle type, itself connected to the brushing member 3, and optionally integral with the core carrying the bristles or pins so as to form the tail of said brush member.
  • the toothbrush is an "electric" toothbrush, that is to say equipped with an electric motor ensuring the drive of the brushing member.
  • the drive means 6 are arranged to continuously drive the brushing member 3, that is to say to allow the latter to perform any number of consecutive turns in the same direction.
  • said drive means 6 are advantageously bidirectional, that is to say provided with inversion means allowing the user to choose alternately, for the brushing member 3, a direction of rotation or the other around Taxe (XX '), according as it treats the vestibular or lingual surfaces of the teeth, and according to whether these teeth are situated on the lower or upper jaw.
  • the driving means 6 preferably comprise a speed regulator designed to allow the user to choose the speed of rotation ⁇ of the brushing member 3, for example in a range of between 200 rpm and 800 rpm, and more particularly between 300 and 600 rpm.
  • the control of the motor and in particular the selection of the direction of rotation or the adjustment of the rotational speed, can be achieved by means of an electronic control card 11, the functions of which can advantageously be controlled for example by one or more buttons. 2.
  • said control card 11 may be housed flat against a flat part of the motor, substantially vis-à-vis the crown 2A, as shown in Figures 3 and 4.
  • the toothbrush 1 comprises a flexible lining 20, distinct from the first brushing member 3, said flexible lining 20 being arranged vis-à-vis the 3D distal end of said first body. brushing 3, in the axial extension thereof and substantially transversely to the axis of rotation (XX '), so as to overlap at least partially, as shown in particular in Figures 1, 2 and 5, the section 3S transverse of said first brushing member 3.
  • the flexible lining 20 thus stands in the manner of a curtain or a flexible, and more particularly flexible, protective shield disposed towards the distal end of the toothbrush, axially beyond the first rotary brushing member 3 , and which covers and thus masks at least partially the distal end 3D of the latter.
  • the flexible lining 20 providing a covering of the brushing member at a zone that is a priori non-functional of the latter, in order to avoid interference of said zone. non-functional with the mucous membranes 26, while being flexible, and therefore tissue-friendly and providing comfortable brushing.
  • said flexible liner 20 may preferably form a second brush member whose dimensions, shapes, and constituent materials may advantageously be suitable for brushing.
  • the flexible lining 20 is kinematically distinct from the first brushing member 3, and particularly preferably fixed in substantially invariant position (to its own possible deformation near) with respect to the support member 2.
  • the flexible liner 20 comprises a plurality of bristles or spikes, or tufts of bristles or spikes 21 or a series of spikes extending or coming from the flexible material forming the flexible liner 20, advantageously flexible, which are preferably arranged in one or more rows which are preferably substantially normal to the axis of rotation (XX ').
  • the flexible lining 20 may comprise two or more rows of axially succeeding tufts of bristles or spikes, and preferably forming a kind of bow presenting in the median plane P M of the toothbrush 1, as illustrated in FIG. 4, an overall contour, rounded in its distal portion, and preferably substantially crescent-shaped, which improves the aesthetic appearance as well as as the atraumatic appearance of the soft liner and the brush as a whole.
  • the plane containing the axis of rotation (XX ') and which fictitiously separates the toothbrush into a substantially symmetrical left and right half, said plane being substantially vertical on the plane of rotation is referred to as the "sagittal plane" Ps.
  • the bristles or pins 21, and more generally the rows of bristles or pins or the lining 20 as a whole can be oriented substantially in the said front plane PF, and in particular contained in a plane substantially normal to the axis of rotation ( XX ').
  • bristles or nubs or tufts of bristles or nubs 21 have at rest, that is to say independently of their possible functional flexion in contact with the teeth 4, a certain inclination, for example substantially understood between 5 degrees and 10 degrees, or even 20 degrees or 30 degrees, relative to said normal.
  • the flexible liner 20 preferably forms a screen covering, in projection in a plane PF normal to the axis of rotation, as shown in FIG. 5, at least 20%, at least 30%, at least 50%, or even at least 75% or 80% of the area occupied by the brushing member 3 in projection in this same plane.
  • the flexible lining 20 will preferably have, in the frontal plane P F , a transverse surface coverage ratio corresponding to the above-mentioned values, so as to effectively hide the non-functional portion of the proximal end 3P of the brushing member, and more particularly at least one-third, half, or even two-thirds or three-fourths on the upper "dorsal" sector of the disk in which fits (in projection in said frontal plane) said organ of brushing, while allowing easy and comfortable access to the functional portion of said brush member 3.
  • the length of the bristles 21 of the lining measured between their root 21 A and their free end which points towards the active zone 5, may have proportions similar to those mentioned above with respect to the diameter D 3 of the roll forming the brushing member.
  • the free ends 21 B of said bristles or pins will, however, be set back from the gauge plane parallel to the median plane and which tangent the brushing member 3 at the active zone 5, so as to achieve a general effect protection and to let appear freely the lower portion, and in particular the third or the bottom quarter of said brushing member vis-à-vis said active zone 5, as shown in particular in Figures 2, 3 and 5.
  • the axis of rotation (XX ') is preferably substantially parallel to, and particularly preferably substantially coincides with, the principal direction of longitudinal extension of the handle 2, which provides a good grip and a brushing gesture very intuitive.
  • the toothbrush 1 also comprises a spacer 25 which partly covers the lateral surface 3L of the first brushing member 3 so as to protect the mucous membranes 26 adjacent to the teeth 4 by the action of said brushing member 3, such that this is illustrated in Figure 2, when the latter is animated by its rotational movement.
  • said spacer 25 is independent of said brushing member 3 on the kinematic plane, so as not to be itself rotated by the drive means 6.
  • said spacer 25 is preferably fixed in invariant position on the support member 2.
  • the flexible liner 20 can then be fixed to said spacer 25, in a distal portion thereof, axially located beyond the distal end 3D of the first brushing member 3.
  • the hairs or pins 21 may be implanted and rooted in a dorsal wall element 27 of said spacer, located substantially opposite the active zone 5 relative to the median plane P, to an axial abscissa more distant than that of the mobile brushing member 3, and more particularly beyond an interstice axially capping the distal end 3D of said brush member 3, the liner thus forming one or more terminal rows of bristles or pins at the distal end of the toothbrush.
  • the spacer 25 comprises, in addition to the back wall member 27, lateral cheeks 28 located axially recessed towards the handle 2 relative to the distal end of said back wall member 27, and closer to the zone. active 5 of the toothbrush 1 that said back wall member, as well as substantially oblique engagement ramps 29 which connect the back wall member 27 to said cheeks 26 down to the active zone 5 in the direction of the axial abscissa decreasing (i.e. from the distal portion to a more proximal portion), so as to form a beveled beak 30.
  • this bevel which rises from the side cheeks 28, to refine and gradually reduce, along the axis of rotation (XX '), the angular coverage provided by the spacer 25 in azimuth about said axis, to the free distal end of said spacer, allows to release at least one or more of the brushes or organs, and to facilitate access to them, while providing effective protection of the mucous membranes 26.
  • the engagement ramps 29 will have rounded contours, preferably convex, the spacer being substantially in the form of a spoon, so as to allow a soft penetration of said spacer and the toothbrush 1 in the mouth, between the teeth and the mucous membranes, by softened wedge effect.
  • the lateral cheeks 28 may have a substantially leveled contour which substantially follows the axis of rotation (XX '), preferably a little above the median plane P Ml so as to discover the less in part, and preferably in the majority, the lower part of the lateral surface 3L of the brushing member, the angular coverage of the spacer at said cheeks 28 may be substantially between 90 degrees and 120 or even 150 degrees around of the axis (XX ').
  • said cheeks 28 it is also conceivable for said cheeks 28 to be able to descend to the level of the median plane P, or even below it, that is to say to approach the active zone 5 more closely by wrapping the organ brushing 3 according to an angular coverage that can exceed 80 degrees or 190 degrees.
  • spacer 25 may have, as shown in particular in Figure 6, on the one hand a body portion 31 forming a rigid or semi-rigid protective wall, and on the other hand a border 32 which surrounds said body portion 31 at the free edges of the spacer, and in particular along the engagement ramps 29 and / or cheeks 28, said edge 32 being more flexible than said body portion 31.
  • the spacer 25 may thus have a bi-material structure, the body portion 31, which preferably forms the central framework of the spacer, and in particular at least a portion of the dorsal portion 27 intended to support substantially " flat "the spreading force of the mucous membranes 26, being made of a first rigid or semi-rigid material, while the peripheral portions, including the songs, of the spacer likely to come into contact with their" cutting edge "with the gums or the teeth during penetration and manipulation of the brush will have a protective edge 32 made of a second material more flexible than the first.
  • Such a bi-material structure which advantageously allows the spacer 25 on the one hand to ensure an effective resistance and a solid separation of the mucous membranes, and on the other hand to have a soft and atraumatic character during penetration movements or positioning, can in particular be performed by overmolding or any other equivalent technique.
  • the edge 32 may be in the form of a lip, a skirt, or a relatively flexible bib, and more particularly flexible, which borders the rigid body portion 31 forming a shell. It may further comprise a rounded extra thickness, bead or flange type, improving the atraumatic character of the free edges of the spacer.
  • the flexible seal 20 is preferably axially disposed substantially opposite the engagement ramps 29, as shown in particular in FIG. 2.
  • the first rotary brushing member 3 is mounted axially cantilevered.
  • the distal end of the brush 1, and more particularly of the spacer 25, can then in particular be devoid of rigid wall transverse to the axis, or at least a bearing for supporting the drive shaft 10 vis-à-vis the distal end 3D of the brush member, said distal end can thus be discovered, that is to say not covered by a rigid screen, in projection in the frontal plane, on less than half, two-thirds, three-quarters or even all of its height.
  • the flexible liner 20 can then be used to mask the distal end portion of the shaft 10 which supports and drives said brush member.
  • the flexible lining 20 which can form the outer surface of the spacer 25 may have reliefs, and in particular protruding ridges 20A substantially parallel to each other and transverse to the axis XX ', as is illustrated in particular in FIGS. Figures 2, 3 and 6 to form means for brushing the tongue.
  • the spacer 25 is thus provided with ridges 20A forming means for brushing the tongue.
  • the invention also relates as such to a replacement head 40 for a toothbrush 1, said head being advantageously removably attached to the support 2, by suitable connection means, and for example by a fixing by screwing, interlocking, bayonet or snap.
  • a replacement head 40 may be used as a replacement for a used head, or in a retrofit solution on a toothbrush of the prior art in order to transform it into a toothbrush 1 according to the invention. .
  • said replacement head 40 may comprise a first brushing member 3 of the teeth 4 rotatably mounted about an axis of rotation (XX '), said first brushing member 3 having a lateral surface 3L which is extends along its axis of rotation (XX ') between a proximal end 3P, oriented towards the support member 2 on which the head 40 is intended to be attached, and an opposite 3D distal end, said lateral surface being intended to be brought into contact with the teeth 4 in order to clean them, said replacement head 40 comprising a flexible lining 20, distinct from the first brushing member 3, which is arranged opposite the 3D distal end of said first brushing member, in the axial extension thereof, and substantially transversely to the axis of rotation (XX '), so as to overlap at least partially the cross section of said first brush member.
  • said replacement head 40 will embark the brushing member 3, preferably with its drive pin 10, and the spacer 25 supporting the bristles or pins 21, and thus form a subassembly that can be easily mounted, disassembled or adapted to one or more types of toothbrush holder 2.
  • said head 40 may have a first proximal portion 41, intended to be coupled to the support 2 and preferably having a constriction, for example in the form of a truncated cone whose wide base capping said support 2, said proximal portion being followed, in the direction of increasing abscissa, of a distal portion 42, preferably integral with said proximal portion 41, said distal portion 42 can form the spacer 25 and more particularly the rigid body 31 of the latter, which widens from the throat corresponding to the top of the truncated cone.
  • the present invention also relates as such to a spacer for a toothbrush provided with a rotating brushing member 3, said spacer 25 being intended to partially cover the lateral surface 3L of the rotary brushing member 3 of said toothbrush 1 so as to protect the mucous membranes 26 adjacent to the teeth 4 of the action of said brushing member 3.
  • said spacer 25 advantageously has an axial housing 43 designed to receive said brush member 3, said housing opening advantageously at least partly in its lower portion, forming a revealing window, and preferably letting out of said housing, under the median plane and at the level of the active zone 5, at least a portion of said brushing member 3.
  • said axial housing 43 has a proximal access passage 44 which allows the passage of the motor shaft, and more particularly of the pin 10, for driving the brushing member 3 in rotation, said housing 43 being moreover bordered by a protective wall, preferably substantially cylindrical, intended to cover at least partly along the axis of rotation (XX '), the lateral surface 3L of said brush member 3.
  • said protective wall 45 corresponds to the assembly formed by the dorsal wall 27 and the cheeks 28 previously described
  • said spacer 25 comprises a flexible liner 20 which is arranged transversely to the axis of rotation (XX ') so as to delimit the axial housing 43 vis-à-vis the distal end 3D of the brushing member 3, in the axial extension thereof, and in an overlapping manner with the transverse section 3S of said brushing member 3.
  • the axial housing 43 may thus be in the form of a substantially tubular and cylindrical housing, centered on the axis of rotation (XX '), preferably without a rigid wall or bearing in its distal portion which advantageously remains open, and preferably bevelled, but which is nevertheless blocked at least in part by the flexible seal 20, and in particular by one or more rows of bristles or pins 21 advantageously flexible, which mark the distal limit of said housing, the farthest from the handle 2 and the closest to the user when the toothbrush enters his mouth.
  • the retractor 25, and more generally the head 40 may comprise, preferably in the vicinity of the proximal access passage 44, a bearing 46, preferably of smooth bearing type, intended to accommodate and guide the spindle 10 to rotate. of the brushing member 3.
  • such a constructive arrangement makes it possible to limit the cantilever of said member 3, preferably limiting it, to the functional axial clearances close to substantially the length L of said brushing member 3. It also makes it possible to maintain the member 3 and shaft 10 in place relative to said spacer 25, stabilizing them, and in particular enabling them to better withstand the radial bending or depressing forces exerted transversely by the tooth on the brushing member 3, in response to the brushing pressure.
  • said bearing 46 may be in the form of a substantially circular bore made at the top of a tongue bearing on the internal face of the back wall 27, and preferably integral with the spacer and more particularly with its rigid body 31, as is particularly visible in Figure 3.
  • said spacer 25 may advantageously comprise a foot extending below the axial housing 43 along the axis of rotation, and preferably forming a trunk hollow cone corresponding to the proximal portion 41 of the head 40, said foot advantageously providing a concealing casing and, where appropriate guiding the pin 10.
  • the toothbrush according to the invention, as well as its various accessories, such as replacement head 40 and spacer 25, advantageously provide a particularly safe, comfortable, and atraumatic brushing, during which the user can easily access all the mouth areas involved in the cleaning, and approach the teeth successively by their different faces, always using the method of the roller.
  • the direction and the speed of rotation can be adapted and controlled by the user.
  • the flexible liner offers non-binding protection of the mucous membranes, gums, or even the teeth themselves vis-à-vis the brushing member 3, and more particularly the end of the shaft 10 which leads to last rotation, so that, with the spacer 25, only the functional portion of the brush member 3 is accessible and can reach the teeth and act on the latter in a brushing movement according to the roller method .
  • the bristles 21 of the flexible lining 20 do not form a hard obstacle likely to bump into the teeth or gums, but on the contrary a kind of flexible curtain likely to flex, especially to the organ and or to deviate so as to allow, as the engagement ramps 29, smooth progressive access, the brush member 3 to the area to be brushed.
  • the invention finds its industrial application in the manufacture of toothbrushes, in particular electric toothbrushes.

Abstract

The invention relates to a toothbrush (1), in particular an electric toothbrush, comprising: - a support member (2), - a first tooth brushing member (3) mounted on said support member so as to be able to rotate about a rotation axis (XX'), said first brushing member having a lateral surface (3L) which extends along its rotation axis (XX') between a proximal end (3P) and an opposite distal end (3D), said lateral surface being intended to be brought into contact with the teeth (4) in order to clean them, said toothbrush being characterized in that it has a flexible trim (20), separate from the first brushing member (3), which is arranged facing the distal end (3D) approximately transversely to the rotation axis (XXI) so as to at least partially overlap the transverse section (3S) of said first brushing member (3).

Description

BROSSE A DENTS AVEC RANGÉE TERMINALE DE POILS OU PICOTS  TOOTHBRUSH WITH TERMINAL ROW OF HAIR OR PICOTS
DOMAINE TECHNIQUE TECHNICAL AREA
La présente invention se rapporte au domaine général des instruments d'hygiène bucco-dentaire, et plus particulièrement au domaine des brosses à dents à usage humain ou vétérinaire. The present invention relates to the general field of oral hygiene instruments, and more particularly to the field of toothbrushes for human or veterinary use.
La présente invention se rapporte plus particulièrement à une brosse à dents comprenant un organe de support de type manche, et un premier organe de brossage des dents monté mobile à rotation sur ledit organe de support, autour d'un axe de rotation (XX1), ledit premier organe de brossage présentant une surface latérale qui s'étend le long de son axe de rotation (XX') entre une extrémité proximale, orientée vers l'organe de support, et une extrémité distale opposée, ladite surface latérale étant destinée à être amenée au contact des dents pour en assurer le nettoyage. The present invention relates more particularly to a toothbrush comprising a handle type support member, and a first toothbrushing member rotatably mounted on said support member, about an axis of rotation (XX 1 ). said first brush member having a lateral surface which extends along its axis of rotation (XX ') between a proximal end facing the support member and an opposite distal end, said lateral surface being adapted to be brought into contact with the teeth to ensure cleaning.
TECHNIQUE ANTERIEURE PRIOR ART
On connaît de nombreux types de brosse à dents électriques destinées à améliorer l'action de brossage, parmi lesquelles des brosses à dents possédant un organe de brossage qui se présente sous la forme d'un rouleau rotatif qui vient aborder tangentiellement la face de la dent afin d'opérer un mouvement de brossage orienté de la gencive vers la dent. Many types of electric toothbrushes are known for improving the brushing action, among which toothbrushes having a brushing member which is in the form of a rotating roller which tangentially approaches the face of the tooth. to perform a brushing movement oriented from the gum to the tooth.
Ces brosses à dents sont généralement pourvues d'écarteurs recouvrant en partie l'organe de brossage, à l'opposé de la zone active où celui-ci entre en contact avec la dent, de sorte à faire écran entre ledit organe de brossage en mouvement et les muqueuses voisines, et ainsi d'éviter toute irritation ou blessure de ces dernières. These toothbrushes are generally provided with spacers partially covering the brush member, opposite the active zone where it comes into contact with the tooth, so as to form a screen between said brushing member in motion and neighboring mucous membranes, and so avoid any irritation or injury to them.
Si de telles brosses à dents présentent d'indéniables avantages, elles peuvent toutefois souffrir de certains inconvénients. En particulier, les écarteurs connus tendent à gêner l'accès de l'organe de brossage aux dents, en particulier dans les zones étroites ou reculées de la bouche, ce qui peut naturellement nuire à l'efficacité globale du brossage. If such toothbrushes have undeniable advantages, they may however suffer from certain disadvantages. In particular, the known spacers tend to hinder the access of the brush member to the teeth, particularly in the narrow or remote areas of the mouth, which can naturally affect the overall effectiveness of brushing.
En outre, la présence des écarteurs connus augmente généralement significativement le volume occupé par la tête de ia brosse à dents, ce qui est source d'inconfort lors du brossage. In addition, the presence of known spacers generally significantly increases the volume occupied by the head of the toothbrush, which is a source of discomfort during brushing.
Par ailleurs, la complexité de certaines brosse à dents connues tend à augmenter leur coût de fabrication, à dégrader parfois leur fiabilité du fait de la présence de mécanismes relativement fragiles et impliquant un grand nombre de pièces, et enfin à rendre leur entretien parfois compliqué et coûteux, par exemple s'il devient nécessaire de remplacer l'intégralité de la tête de brosse alors même que certains de ses éléments constitutifs sont encore fonctionnels. Moreover, the complexity of certain known toothbrushes tends to increase their manufacturing cost, to sometimes degrade their reliability due to the presence of relatively fragile mechanisms and involving a large number of parts, and finally to make their maintenance sometimes complicated and expensive, for example if it becomes necessary to replace the entire brush head even though some of its components are still functional.
EXPOSE DE L'INVENTION SUMMARY OF THE INVENTION
Les objets assignés à la présente invention visent à remédier aux inconvénients énumérés ci-dessus et à proposer une nouvelle brosse à dents de structure particulièrement simple, compacte et peu onéreuse, qui permette un brossage efficace et confortable. The objects assigned to the present invention seek to overcome the disadvantages enumerated above and to propose a new toothbrush structure particularly simple, compact and inexpensive, which allows an efficient and comfortable brushing.
Un autre objet assigné à l'invention vise à proposer une nouvelle brosse à dents qui puisse accéder facilement à toutes les zones buccales devant faire l'objet d'un brossage. Another object of the invention is to provide a new toothbrush that can easily access all areas of the mouth to be brushed.
Un autre objet assigné à l'invention vise à proposer une nouvelle brosse à dents qui soit particulièrement respectueuse tant des dents que des gencives ou des muqueuses voisines, et dont l'utilisation soit particulièrement atraumatique. Another object assigned to the invention is to provide a new toothbrush that is particularly respectful of both teeth or gums or mucous membranes, and whose use is particularly atraumatic.
Un autre objet assigné à l'invention vise à proposer une brosse à dents modulaire qui soit particulièrement facile à assembler et à entretenir. Les objets assignés à l'invention sont atteints à l'aide d'une brosse à dents comprenant : Another object assigned to the invention is to provide a modular toothbrush that is particularly easy to assemble and maintain. The objects assigned to the invention are attained by means of a toothbrush comprising:
- un organe de support, de type manche,  a support member, of the handle type,
- un premier organe de brossage des dents monté mobile à rotation sur ledit organe de support, autour d'un axe de rotation (XX'), ledit premier organe de brossage présentant une surface latérale qui s'étend le long de son axe de rotation (XX') entre une extrémité proximale, orientée vers l'organe de support, et une extrémité distale opposée, ladite surface latérale étant destinée à être amenée au contact des dents pour en assurer le nettoyage, a first toothbrushing member rotatably mounted on said support member about an axis of rotation (XX '), said first brushing member having a lateral surface which extends along its axis of rotation; (XX ') between a proximal end, facing the support member, and an opposite distal end, said side surface being intended to be brought into contact with the teeth for cleaning purposes,
ladite brosse à dents étant caractérisée en ce qu'elle comporte une garniture souple, distincte du premier organe de brossage, qui est agencée en vis-à-vis de l'extrémité distale dudit premier organe de brossage, dans le prolongement axial de ce dernier et sensiblement transversalement à l'axe de rotation (XX'), de sorte à chevaucher au moins la section transverse dudit premier organe de brossage. Les objets assignés à l'invention sont également atteints à l'aide d'une tête de rechange pour brosse à dents spécifique à l'invention. said toothbrush being characterized in that it comprises a flexible liner, distinct from the first brush member, which is arranged vis-à-vis the distal end of said first brushing member, in the axial extension thereof and substantially transversely to the axis of rotation (XX '), so as to overlap at least the cross section of said first brush member. The objects assigned to the invention are also achieved by means of a replacement head for a toothbrush specific to the invention.
Les objets assignés à l'invention sont enfin atteints à l'aide d'un écarteur pour brosse à dents pourvue d'un organe de brossage rotatif, ledit écarteur étant destiné à recouvrir en partie la surface latérale de l'organe de brossage rotatif de ladite brosse à dents de sorte à protéger les muqueuses voisines des dents de l'action dudit organe de brossage, ledit écarteur présentant un logement axial conçu pour recevoir ledit organe de brossage, ledit logement présentant un passage d'accès proximal permettant le passage de l'arbre moteur destiné à entraîner l'organe de brossage, ledit logement étant bordé par une paroi de protection destinée à recourir au moins en partie, le long de l'axe de rotation, la surface latérale dudit organe de brossage, ledit écarteur étant caractérisé en ce qu'il comporte une garniture souple disposée transversalement à l'axe de rotation (XX') de sorte à délimiter le logement axial en vis-à-vis de l'extrémité distale de l'organe de brossage, dans le prolongement axial de ce dernier, et de manière chevauchante avec la section transverse dudit organe de brossage. DESCRIPTIF SOMMAIRE DES DESSINS The objects assigned to the invention are finally achieved by means of a toothbrush spreader provided with a rotary brushing member, said spacer being intended to partially cover the lateral surface of the rotary brushing member of the toothbrush. said toothbrush so as to protect the adjacent mucous membranes of the teeth from the action of said brush member, said spacer having an axial housing adapted to receive said brush member, said housing having a proximal access passage allowing the passage of the brush; motor shaft for driving the brushing member, said housing being bordered by a protective wall for recourse at least in part, along the axis of rotation, the lateral surface of said brush member, said spacer being characterized in that it comprises a flexible lining disposed transversely to the axis of rotation (XX ') so as to delimit the axial housing opposite the distal end of the gold brushing, in the axial extension thereof, and overlapping with the cross section of said brush member. SUMMARY DESCRIPTION OF THE DRAWINGS
D'autres objets, caractéristiques et avantages de l'invention apparaîtront plus en détails à la lecture de la description qui suit, ainsi qu'à l'aide des dessins annexés, fournis à titre purement iilustratif et non limitatif, parmi les lesquels : - la figure 1 illustre, selon une vue en perspective, une variante de réalisation de brosse à dents conforme à l'invention ; Other objects, features and advantages of the invention will appear in more detail on reading the description which follows, and with the aid of the accompanying drawings, provided for purely illustrative and non-limiting purposes, among which: Figure 1 illustrates, in a perspective view, an embodiment of toothbrush according to the invention;
- la figure 2 illustre, selon une vue de coté, la brosse à dents représentée sur la figure 1 ; - Figure 2 illustrates, in a side view, the toothbrush shown in Figure 1;
- la figure 3 illustre, selon une vue en coupe dans le plan sagittal, la brosse à dents représentée sur la figure 2 ; - Figure 3 illustrates, in a sectional view in the sagittal plane, the toothbrush shown in Figure 2;
- la figure 4 illustre, selon une vue du dessous en coupe dans le plan médian de (a brosse à dents, la brosse à dents représentée sur les figures 1 à 3 ; Figure 4 illustrates, in a bottom view in section in the median plane of the toothbrush, the toothbrush shown in Figures 1 to 3;
-la figure 5 illustre, selon une vue de face, la brosse à dents représentée sur les figures 1 à 4 ; - la figure 6 illustre, selon une vue de détail partielle en perspective, la tête de la brosse à dents représentée sur les figures précédentes ; FIG. 5 illustrates, in a front view, the toothbrush shown in FIGS. 1 to 4; - Figure 6 illustrates, in a partial detail view in perspective, the head of the toothbrush shown in the preceding figures;
- la figure 7 correspond à une vue éclatée en perspective de la brosse à dents représentée sur les figures 1 à 6. - Figure 7 corresponds to an exploded perspective view of the toothbrush shown in Figures 1 to 6.
MEILLEURE MANIERE DE REALISER L'INVENTION La présente invention concerne une brosse à dents 1 destinée au maintien de l'hygiène bucco-dentaire par élimination des débris alimentaires et de la plaque dentaire. BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a toothbrush 1 for maintaining oral hygiene by removing food debris and dental plaque.
La présente invention concerne tout particulièrement une brosse à dents destinée à l'homme, mais elle peut parfaitement être adaptée à un usage vétérinaire, à destination par exemple à des animaux d'élevage ou de compagnie. De manière classique, la brosse à dent 1 comporte un organe de support 2 ainsi qu'au moins un premier organe de brossage 3 des dents. The present invention particularly relates to a toothbrush intended for humans, but it can perfectly be adapted for veterinary use, for example for livestock or companion animals. In a conventional manner, the toothbrush 1 comprises a support member 2 as well as at least a first toothbrushing member 3.
Au sens de l'invention, l'organe de support 2 permet à l'utilisateur de manipuler l'organe de brossage 3, et notamment de contrôler sensiblement sa position et son orientation dans l'espace, ainsi que sa pression au contact des dents 4. Within the meaning of the invention, the support member 2 allows the user to manipulate the brushing member 3, and in particular to substantially control its position and its orientation in space, as well as its pressure in contact with the teeth 4.
Il n'est bien entendu nullement limité une forme de réalisation particulière, mais est de préférence destiné à la préhension manuelle directe de la brosse à dents et peut notamment constituer un manche. It is of course not limited to a particular embodiment, but is preferably intended for direct manual gripping of the toothbrush and may include a handle.
De préférence, ledit organe de support 2 se présente sous forme d'une tige allongée présentant de préférence une géométrie de révolution, et pourra avantageusement comporter un bombé 2A, suivi axialement d'un étranglement 2B, puis, de préférence d'une culasse 2C élargie, par exemple sensiblement hémisphérique, de manière à ce que ledit support 2 présente une forme ergonomique qui facilite la prise en main. Preferably, said support member 2 is in the form of an elongated rod preferably having a geometry of revolution, and may advantageously comprise a bulge 2A, axially followed by a constriction 2B, then, preferably a 2C breech expanded, for example substantially hemispherical, so that said support 2 has an ergonomic shape that facilitates handling.
Selon l'invention, l'organe de brossage 3 est monté mobile à rotation sur (et par rapport à) l'organe de support 2, autour d'un axe de rotation (XX'). According to the invention, the brushing member 3 is rotatably mounted on (and with respect to) the support member 2, about an axis of rotation (XX ').
Ledit organe de brossage 3 présente une surface latérale 3L qui s'étend, le long de son axe de rotation (XX'), entre une extrémité proximale 3P qui est orientée vers l'organe de support 2, et une extrémité distale 3D opposée. Said brushing member 3 has a lateral surface 3L which extends, along its axis of rotation (XX '), between a proximal end 3P which is directed towards the support member 2, and an opposite 3D distal end.
Ladite surface latérale 3L est destinée à être amenée au contact des dents pour en assurer le nettoyage, en l'espèce par une action mécanique abrasive de brossage. Said lateral surface 3L is intended to be brought into contact with the teeth to ensure cleaning, in this case by an abrasive mechanical brushing action.
A cet effet, l'organe de brossage 3 comportera de préférence des éléments souples, dont l'enveloppe virtuelle habillant la surface extérieure correspond à ladite surface latérale 3L, et est destinée à venir au contact des dents et de la gencive. For this purpose, the brushing member 3 will preferably comprise flexible elements, whose virtual envelope covering the outer surface corresponds to said lateral surface 3L, and is intended to come into contact with the teeth and the gingiva.
Lesdits éléments souples du premier organe de brossage pourront de préférence être formés par une pluralité de poils ou picots, de préférence en matériau synthétique, qui font saillie sensiblement radialement par rapport à un noyau en matériau rigide matérialisant l'axe de rotation (XX'). Bien entendu, ie diamètre, (a longueur, la forme et la souplesse des poils ou picots seront définis par i'homme du métier en fonction de la destination de la brosse, et notamment de la sensibilité de l'utilisateur. Said flexible elements of the first brushing member may preferably be formed by a plurality of bristles or pins, preferably synthetic material, which project substantially radially relative to a core of rigid material materializing the axis of rotation (XX ') . Of course, the diameter, (in length, shape and flexibility of the bristles or pins will be defined by those skilled in the art depending on the destination of the brush, including the sensitivity of the user.
Les poils ou picots du premier organe de brossage pourront bien entendu être disposés régulièrement, éventuellement en touffes, être de longueur égale ou différente, jointifs ou au contraire espacés les uns des autres, la surface physique de l'organe de brossage 3 pouvant éventuellement présenter des irrégularités dans son contour, par exemple une alternance de creux et de bosses, éventuellement des interstices, ou bien encore une goujure destinée à l'évacuation des débris. Par commodité de description, on considérera que, au sens de l'invention, la surface latérale 3L fait référence à l'enveloppe virtuelle, comprise entre l'extrémité proximale 3P et l'extrémité distaie 3D, dans laquelle s'inscrivent des éléments souples garnissant l'organe de brossage 3. The bristles or pins of the first brushing member may of course be arranged regularly, possibly in tufts, of equal or different length, contiguous or otherwise spaced from each other, the physical surface of the brushing member 3 may optionally present irregularities in its contour, for example an alternation of hollows and bumps, possibly interstices, or even a flute for the evacuation of debris. For convenience of description, it will be considered that, in the sense of the invention, the lateral surface 3L refers to the virtual envelope, between the proximal end 3P and the distal end 3D, in which flexible elements are inserted. filling the brushing member 3.
De préférence, ladite surface latérale 3L, et plus particulièrement l'organe de brossage 3, présente sensiblement une forme de révolution autour de l'axe de rotation (XX'), ou à tout le moins une géométrie invariante par rotation autour dudit axe. Preferably, said lateral surface 3L, and more particularly the brushing member 3, has substantially a shape of revolution about the axis of rotation (XX '), or at least an invariant geometry by rotation about said axis.
Plus particulièrement, l'organe de brossage 3 pourra présenter une géométrie sensiblement cylindrique, de préférence de base circulaire et de génératrice rectiligne correspondant à l'axe (XX'). Dans le cas où ledit organe de brossage 3 est formé par un tel cylindre, la surface latérale 3L pourra avantageusement correspondre à la paroi latérale courbe dudit cylindre, tandis que les extrémités proximale 3P et distale 3D pourront correspondre aux surfaces de base circulaires planes dudit cylindre, normales à l'axe (XX'). More particularly, the brushing member 3 may have a substantially cylindrical geometry, preferably circular base and rectilinear generatrix corresponding to the axis (XX '). In the case where said brush member 3 is formed by such a cylinder, the lateral surface 3L may advantageously correspond to the curved side wall of said cylinder, while the proximal end 3P and distal 3D may correspond to the planar circular base surfaces of said cylinder , normal to the axis (XX ').
Bien entendu, la forme de l'organe de brossage est susceptible de faire l'objet de variation, ledit organe de brossage 3 pouvant présenter une section transverse constante ou variable, le long de l'axe (XX'), et notamment un profil ondulé, ou encore présenter une forme sensiblement ovoïde ou ellipsoïde dont les extrémités proximales 3D et distales 3D forment les sommets. D'autre part, la longueur L de l'organe de brossage 3 est de préférence sensiblement supérieure à son diamètre hors-tout D3, ladite longueur pouvant par exemple être comprise entre 15 mm et 30 mm, et de préférence voisine de 25 mm, tandis que le diamètre hors-tout D3 de sa section ia plus large pourra être compris entre 12 mm et 15 mm. Of course, the shape of the brush member may be varied, said brush member 3 may have a constant or variable cross section along the axis (XX '), and in particular a profile corrugated, or have a substantially ovoid or ellipsoid shape whose 3D proximal and distal 3D ends form the vertices. On the other hand, the length L of the brushing member 3 is preferably substantially greater than its overall diameter D 3 , said length being for example between 15 mm and 30 mm, and preferably around 25 mm. while the overall diameter D 3 of its wider section may be between 12 mm and 15 mm.
Avantageusement, l'organe de brossage 3 forme une brosse à « rotation longitudinale » qui permet de réaliser un brossage tangentiel des dents 4 selon la méthode dite « du rouleau », c'est-à-dire selon un mouvement de balayage orienté de la gencive vers la dent, qui conjugue ainsi l'efficacité mécanique du brossage avec le respect des gencives. Advantageously, the brushing member 3 forms a "longitudinal rotation" brush which makes it possible to perform a tangential brushing of the teeth 4 according to the so-called "roller" method, that is to say according to an oriented sweeping movement of the tooth. gum to the tooth, which combines the mechanical efficiency of brushing with the respect of the gums.
En d'autres termes, la brosse à dents 1 est agencée de telle sorte que, lors du brossage, l'utilisateur puisse amener la surface latérale 3L de l'organe de brossage 3 selon un abord tangent contre la surface de la dent 4, au niveau d'une zone dite « zone active » 5, l'axe de rotation (XX') étant alors sensiblement parallèle à la direction d'extension principale de la gencive et de la face de la dent traitée, tel que cela est représenté schématiquement sur la figure 2. In other words, the toothbrush 1 is arranged in such a way that, during the brushing, the user can bring the lateral surface 3L of the brushing member 3 at a tangent approach against the surface of the tooth 4, at an area called "active zone" 5, the axis of rotation (XX ') then being substantially parallel to the main extension direction of the gingiva and the face of the treated tooth, as shown schematically in Figure 2.
De préférence, la brosse à dent 1 comporte un unique organe de brossage 3 rotatif, ce qui notamment simplifie sa structure et améliore sa compacité. Preferably, the toothbrush 1 comprises a single rotary brushing member 3, which in particular simplifies its structure and improves its compactness.
Avantageusement, la brosse à dents 1 conforme à l'invention comprend également des moyens d'entraînement 6 capables d'entraîner en rotation l'organe de brossage 3 autour de son axe (XX1) en transmettant à ce dernier un couple et une vitesse suffisante pour lui permettre d'exercer son action mécanique, par frottement au contact des dents. Advantageously, the toothbrush 1 according to the invention also comprises driving means 6 capable of rotating the brushing member 3 about its axis (XX 1 ) by transmitting a torque and a speed to the latter. sufficient to enable it to exert its mechanical action, by friction in contact with the teeth.
Selon un mode de réalisation préférentiel, visible notamment sur les figures 3, 4 et 7, les moyens d'entraînement 6 peuvent comprendre un moteur électrique 7, alimenté par une batterie ou des piles 8 et dont l'arbre de sortie 9 est en prise avec un élément de transmission 10, de type arbre ou broche, lui-même relié à l'organe de brossage 3, et éventuellement venu de matière avec le noyau portant les poils ou picots de sorte à former la queue dudit organe de brossage. En ce sens, la brosse à dents est une brosse à dents « électrique », c'est à dire équipée d'un moteur électrique assurant l'entraînement de l'organe de brossage. According to a preferred embodiment, visible in particular in Figures 3, 4 and 7, the drive means 6 may comprise an electric motor 7, powered by a battery or batteries 8 and whose output shaft 9 is engaged with a transmission element 10, of shaft or spindle type, itself connected to the brushing member 3, and optionally integral with the core carrying the bristles or pins so as to form the tail of said brush member. In this sense, the toothbrush is an "electric" toothbrush, that is to say equipped with an electric motor ensuring the drive of the brushing member.
De préférence, les moyens d'entraînement 6 sont agencés pour entraîner en continu l'organe de brossage 3, c'est à dire pour permettre à ce dernier d'effectuer un nombre quelconque de tours consécutifs dans le même sens. Preferably, the drive means 6 are arranged to continuously drive the brushing member 3, that is to say to allow the latter to perform any number of consecutive turns in the same direction.
D'autre part, lesdits moyens d'entraînement 6 sont avantageusement bidirectionnels, c'est-à-dire pourvus de moyens d'inversion permettant à l'utilisateur de choisir alternativement, pour l'organe de brossage 3, un sens de rotation ou l'autre autour de Taxe (XX'), selon qu'il traite les faces vestibulaires ou linguales des dents, et selon que ces dents sont situées sur le maxillaire inférieur ou supérieur. On the other hand, said drive means 6 are advantageously bidirectional, that is to say provided with inversion means allowing the user to choose alternately, for the brushing member 3, a direction of rotation or the other around Taxe (XX '), according as it treats the vestibular or lingual surfaces of the teeth, and according to whether these teeth are situated on the lower or upper jaw.
Par ailleurs, les moyens d'entraînement 6 comprennent de préférence un régulateur de vitesse conçu pour permettre à l'utilisateur de choisir la vitesse de rotation ω de l'organe de brossage 3, par exemple dans une plage comprise entre 200 tr/min et 800 tr/min, et plus particulièrement entre 300 et 600 tr/min. Le pilotage du moteur, et notamment la sélection du sens de rotation ou le réglage de la vitesse de rotation, pourra être réalisé au moyen d'une carte électronique de pilotage 11 , dont les fonctions peuvent avantageusement être commandées par exemple par un ou plusieurs boutons 12 accessibles à la surface du support 2. Avantageusement, ladite carte de pilotage 11 pourra être logée à plat contre un méplat du moteur, sensiblement en vis-à-vis du bombé 2A, tel que cela est illustré sur les figures 3 et 4. Furthermore, the driving means 6 preferably comprise a speed regulator designed to allow the user to choose the speed of rotation ω of the brushing member 3, for example in a range of between 200 rpm and 800 rpm, and more particularly between 300 and 600 rpm. The control of the motor, and in particular the selection of the direction of rotation or the adjustment of the rotational speed, can be achieved by means of an electronic control card 11, the functions of which can advantageously be controlled for example by one or more buttons. 2. Advantageously, said control card 11 may be housed flat against a flat part of the motor, substantially vis-à-vis the crown 2A, as shown in Figures 3 and 4.
Selon une caractéristique importante de l'invention, la brosse à dents 1 comporte une garniture souple 20, distincte du premier organe de brossage 3, ladite garniture souple 20 étant agencé en vis-à-vis de l'extrémité distale 3D dudit premier organe de brossage 3, dans le prolongement axial de ce dernier et sensiblement transversalement à l'axe de rotation (XX'), de sorte à chevaucher au moins en partie, tel que cela est notamment illustré sur les figures 1 , 2 et 5, la section transverse 3S dudit premier organe de brossage 3. La garniture souple 20 se dresse ainsi à la manière d'un rideau ou d'un écran protecteur souple, et plus particulièrement flexible, disposé vers l'extrémité distale de la brosse à dents, axialement au-delà du premier organe de brossage 3 rotatif, et qui recouvre et masque ainsi au moins en partie l'extrémité distale 3D de ce dernier. Avantageusement, une telle disposition constructive permet d'obtenir une meilleure protection, la garniture souple 20 offrant une couverture de l'organe de brossage au niveau d'une zone a priori non fonctionnelle de ce dernier, afin d'éviter une interférence de ladite zone non fonctionnelle avec les muqueuses 26, tout en présentant un caractère souple, et par conséquent respectueux des tissus et procurant un brossage confortable. According to an important characteristic of the invention, the toothbrush 1 comprises a flexible lining 20, distinct from the first brushing member 3, said flexible lining 20 being arranged vis-à-vis the 3D distal end of said first body. brushing 3, in the axial extension thereof and substantially transversely to the axis of rotation (XX '), so as to overlap at least partially, as shown in particular in Figures 1, 2 and 5, the section 3S transverse of said first brushing member 3. The flexible lining 20 thus stands in the manner of a curtain or a flexible, and more particularly flexible, protective shield disposed towards the distal end of the toothbrush, axially beyond the first rotary brushing member 3 , and which covers and thus masks at least partially the distal end 3D of the latter. Advantageously, such a constructive arrangement makes it possible to obtain better protection, the flexible lining 20 providing a covering of the brushing member at a zone that is a priori non-functional of the latter, in order to avoid interference of said zone. non-functional with the mucous membranes 26, while being flexible, and therefore tissue-friendly and providing comfortable brushing.
Du reste, ladite garniture souple 20 peut de préférence former un second organe de brossage dont les dimensions, formes, et matériaux constitutifs peuvent avantageusement être adaptés au brossage. Moreover, said flexible liner 20 may preferably form a second brush member whose dimensions, shapes, and constituent materials may advantageously be suitable for brushing.
Avantageusement, la garniture souple 20 est cinématiquement distincte du premier organe de brossage 3, et de façon particulièrement préférentielle fixée en position sensiblement invariante (à sa propre déformation éventuelle près) par rapport à l'organe de support 2. Advantageously, the flexible lining 20 is kinematically distinct from the first brushing member 3, and particularly preferably fixed in substantially invariant position (to its own possible deformation near) with respect to the support member 2.
De préférence, la garniture souple 20 comprend une pluralité de poils ou picots, ou de touffes de poils ou picots 21 ou une série de picots prolongeant ou issus de la matière souple formant la garniture souple 20, avantageusement flexibles, lesquels sont de préférence agencés en une ou plusieurs rangées qui sont préférentiellement sensiblement normales à l'axe de rotation (XX'). Preferably, the flexible liner 20 comprises a plurality of bristles or spikes, or tufts of bristles or spikes 21 or a series of spikes extending or coming from the flexible material forming the flexible liner 20, advantageously flexible, which are preferably arranged in one or more rows which are preferably substantially normal to the axis of rotation (XX ').
Plus particulièrement, tel que cela est notamment illustré sur les figures 1 à 4, la garniture souple 20 pourra comprendre deux rangée ou plus, de touffes de poils ou picots en matière souple se succédant axialement, et formant de préférence une sorte d'étrave présentant, dans le plan médian PM de la brosse à dentsl , tel que cela est illustré sur la figure 4, un contour global, arrondi dans sa partie distale, et de préférence sensiblement en forme de croissant, ce qui améliore l'aspect esthétique ainsi que l'aspect atraumatique de la garniture souple et de la brosse dans son ensemble. Par commodité de description, on désignera par « plan sagittal » Ps le plan contenant l'axe de rotation (XX') et qui sépare fictivement la brosse à dents en une moitié gauche et une moitié droite sensiblement symétriques, ledit plan étant sensiblement vertical sur les figures 2 et 3, par « plan médian » PM le plan contenant l'axe de rotation (XX'), sensiblement perpendiculaire au plan sagittal Ps, et qui divise la brosse à dents, et plus particulièrement l'organe de brossage 3, en une portion « ventrale » inférieure, au niveau de laquelle se situe la zone active 5, et une portion « dorsale » supérieure opposée, et enfin par « plan frontal » PF OU « plan transverse », le plan sensiblement perpendiculaire aux plans précédents, et sensiblement normal à l'axe de rotation (ΧΧ'). De préférence, les poils ou picots 21 , et plus globalement les rangées de poils ou picots ou la garniture 20 dans son ensemble peuvent être orientés sensiblement selon ledit plan frontal PF, et notamment contenus dans un plan sensiblement normal à l'axe de rotation (XX'). More particularly, as shown in particular in FIGS. 1 to 4, the flexible lining 20 may comprise two or more rows of axially succeeding tufts of bristles or spikes, and preferably forming a kind of bow presenting in the median plane P M of the toothbrush 1, as illustrated in FIG. 4, an overall contour, rounded in its distal portion, and preferably substantially crescent-shaped, which improves the aesthetic appearance as well as as the atraumatic appearance of the soft liner and the brush as a whole. For convenience of description, the plane containing the axis of rotation (XX ') and which fictitiously separates the toothbrush into a substantially symmetrical left and right half, said plane being substantially vertical on the plane of rotation, is referred to as the "sagittal plane" Ps. FIGS. 2 and 3, by "median plane" P M, the plane containing the axis of rotation (XX '), substantially perpendicular to the sagittal plane Ps, and which divides the toothbrush, and more particularly the brushing member 3 , in a lower "ventral" portion, at which the active zone 5 is located, and an opposite "dorsal" opposite portion, and finally "front plane" PF OR "transverse plane", the plane substantially perpendicular to the preceding planes , and substantially normal to the axis of rotation (ΧΧ '). Preferably, the bristles or pins 21, and more generally the rows of bristles or pins or the lining 20 as a whole can be oriented substantially in the said front plane PF, and in particular contained in a plane substantially normal to the axis of rotation ( XX ').
Toutefois, il n'est pas exclu que les poils ou picots ou touffes de poils ou picots 21 présentent au repos c'est-à-dire indépendamment de leur flexion fonctionnelle éventuelle au contact des dents 4, une certaine inclinaison, par exemple sensiblement comprise entre 5 degrés et 10 degrés, voire 20 degrés ou 30 degrés, par rapport à ladite normale. However, it is not excluded that the bristles or nubs or tufts of bristles or nubs 21 have at rest, that is to say independently of their possible functional flexion in contact with the teeth 4, a certain inclination, for example substantially understood between 5 degrees and 10 degrees, or even 20 degrees or 30 degrees, relative to said normal.
Par ailleurs, on prévoira de préférence un interstice vide entre l'extrémité distale 3D de l'organe de brossage et la surface de la garniture souple 20 qui lui est axialement la plus proche, de sorte à ménager un jeu axial JA entre ces éléments, afin notamment d'éviter l'usure prématurée de l'extrémité distale de l'organe de brossage et/ou de la garniture. Furthermore, it is preferable to provide a gap between the distal end 3D of the brush member and the surface of the flexible seal 20 which is axially closest thereto, so as to provide an axial clearance J A between these elements. , in particular to avoid premature wear of the distal end of the brush member and / or the liner.
Par ailleurs, la garniture souple 20 forme de préférence un écran couvrant, en projection dans un plan PF normal à l'axe de rotation, tel que cela est notamment illustré sur la figure 5, au moins 20 %, au moins 30 %, au moins 50 %, voire au moins 75 % ou 80 % de la superficie occupée par l'organe de brossage 3 en projection dans ce même plan. En d'autres termes, la garniture souple 20 présentera de préférence, dans le plan frontal PF, un taux de couverture surfacique transverse correspondant aux valeurs susmentionnées, de sorte à masquer efficacement la portion non fonctionnelle de l'extrémité proximale 3P de l'organe de brossage, et plus particulièrement au moins le tiers, la moitié, voire les deux-tiers ou les trois-quarts sur le secteur « dorsal » supérieur du disque dans lequel s'inscrit (en projection dans ledit plan frontal) ledit organe de brossage, et ce tout en autorisant un accès facile et confortable à la portion fonctionnelle dudit organe de brossage 3. Furthermore, the flexible liner 20 preferably forms a screen covering, in projection in a plane PF normal to the axis of rotation, as shown in FIG. 5, at least 20%, at least 30%, at least 50%, or even at least 75% or 80% of the area occupied by the brushing member 3 in projection in this same plane. In other words, the flexible lining 20 will preferably have, in the frontal plane P F , a transverse surface coverage ratio corresponding to the above-mentioned values, so as to effectively hide the non-functional portion of the proximal end 3P of the brushing member, and more particularly at least one-third, half, or even two-thirds or three-fourths on the upper "dorsal" sector of the disk in which fits (in projection in said frontal plane) said organ of brushing, while allowing easy and comfortable access to the functional portion of said brush member 3.
A cet effet, la longueur des poils ou picots 21 de la garniture, mesurée entre leur racine 21 A et leur extrémité libre qui pointe vers la zone active 5, pourra présenter des proportions analogues à celles susmentionnées au regard du diamètre D3 du rouleau formant l'organe de brossage. For this purpose, the length of the bristles 21 of the lining, measured between their root 21 A and their free end which points towards the active zone 5, may have proportions similar to those mentioned above with respect to the diameter D 3 of the roll forming the brushing member.
De préférence, les extrémités libres 21 B desdits poils ou picots se situeront toutefois en retrait du plan de jauge parallèle au plan médian et qui vient tangenter l'organe de brossage 3 au niveau de la zone active 5, de sorte à réaliser un effet général de protection et à laisser apparaître librement la portion inférieure, et notamment le tiers ou le quart inférieur dudit organe de brossage en vis-à-vis de ladite zone active 5, tel que cela est illustré notamment sur les figures 2, 3 et 5. Preferably, the free ends 21 B of said bristles or pins will, however, be set back from the gauge plane parallel to the median plane and which tangent the brushing member 3 at the active zone 5, so as to achieve a general effect protection and to let appear freely the lower portion, and in particular the third or the bottom quarter of said brushing member vis-à-vis said active zone 5, as shown in particular in Figures 2, 3 and 5.
En outre, tel que cela est illustré sur les figures, l'axe de rotation (XX') est de préférence sensiblement parallèle à, et de façon particulièrement préférentielle sensiblement confondu avec, la direction principale d'extension longitudinale du manche 2, ce qui procure une bonne préhension et un geste de brossage très intuitif. In addition, as shown in the figures, the axis of rotation (XX ') is preferably substantially parallel to, and particularly preferably substantially coincides with, the principal direction of longitudinal extension of the handle 2, which provides a good grip and a brushing gesture very intuitive.
De préférence, la brosse à dents 1 comporte également un écarteur 25 qui recouvre en partie la surface latérale 3L du premier organe de brossage 3 de sorte à protéger les muqueuses 26 voisines des dents 4 de l'action dudit organe de brossage 3, tel que cela est illustré sur la figure 2, lorsque ce dernier est animé de son mouvement de rotation. Preferably, the toothbrush 1 also comprises a spacer 25 which partly covers the lateral surface 3L of the first brushing member 3 so as to protect the mucous membranes 26 adjacent to the teeth 4 by the action of said brushing member 3, such that this is illustrated in Figure 2, when the latter is animated by its rotational movement.
Avantageusement, ledit écarteur 25 est indépendant dudit organe de brossage 3 sur le plan cinématique, de sorte à ne pas être entraîné lui-même en rotation par les moyens d'entraînement 6. En outre, ledit écarteur 25 est de préférence fixé en position invariante sur l'organe de support 2. Advantageously, said spacer 25 is independent of said brushing member 3 on the kinematic plane, so as not to be itself rotated by the drive means 6. In addition, said spacer 25 is preferably fixed in invariant position on the support member 2.
De préférence, la garniture souple 20 peut alors être fixée audit écarteur 25, dans une portion distale de ce dernier, axialement située au-delà de l'extrémité distale 3D du premier organe de brossage 3. Preferably, the flexible liner 20 can then be fixed to said spacer 25, in a distal portion thereof, axially located beyond the distal end 3D of the first brushing member 3.
Plus particulièrement, les poils ou picots 21 pourront être implantés et enracinés dans un élément de paroi dorsale 27 dudit écarteur, situé sensiblement à l'opposé de la zone active 5 par rapport au plan médian P , à une abscisse axiale plus lointaine que celle de l'organe de brossage 3 mobile, et plus particulièrement au-delà d'un interstice coiffant axialement l'extrémité distale 3D dudit organe de brossage 3, la garniture 20 formant ainsi une ou plusieurs rangées terminales de poils ou picots à l'extrémité distale de la brosse à dents. More particularly, the hairs or pins 21 may be implanted and rooted in a dorsal wall element 27 of said spacer, located substantially opposite the active zone 5 relative to the median plane P, to an axial abscissa more distant than that of the mobile brushing member 3, and more particularly beyond an interstice axially capping the distal end 3D of said brush member 3, the liner thus forming one or more terminal rows of bristles or pins at the distal end of the toothbrush.
De préférence, l'écarteur 25 comprend, outre l'élément de paroi dorsale 27, des joues latérales 28 situées axialement en retrait vers le manche 2 par rapport à l'extrémité distale dudit élément de paroi dorsale 27, et plus près de la zone active 5 de la brosse à dent 1 que ledit élément de paroi dorsale, ainsi que des rampes d'engagement 29 sensiblement obliques qui relient l'élément de paroi dorsale 27 auxdites joues 26 en descendant vers la zone active 5 dans le sens des abscisses axiales décroissantes (c'est-à-dire de la portion distale vers une portion plus proximale), de sorte à former un bec biseauté 30. Preferably, the spacer 25 comprises, in addition to the back wall member 27, lateral cheeks 28 located axially recessed towards the handle 2 relative to the distal end of said back wall member 27, and closer to the zone. active 5 of the toothbrush 1 that said back wall member, as well as substantially oblique engagement ramps 29 which connect the back wall member 27 to said cheeks 26 down to the active zone 5 in the direction of the axial abscissa decreasing (i.e. from the distal portion to a more proximal portion), so as to form a beveled beak 30.
Avantageusement, ce biseau qui remonte depuis les joues latérales 28, pour affiner et réduire progressivement, le long de l'axe de rotation (XX'), la couverture angulaire procurée par l'écarteur 25 en azimut autour dudit axe, jusqu'à l'extrémité distale libre dudit écarteur, permet de dégager au moins ou en partie le ou les organes de brossage, et de faciliter l'accès à ces derniers, tout en assurant une protection efficace des muqueuses 26. Advantageously, this bevel which rises from the side cheeks 28, to refine and gradually reduce, along the axis of rotation (XX '), the angular coverage provided by the spacer 25 in azimuth about said axis, to the free distal end of said spacer, allows to release at least one or more of the brushes or organs, and to facilitate access to them, while providing effective protection of the mucous membranes 26.
De préférence, les rampes d'engagement 29 présenteront des contours arrondis, de préférence convexes, l'écarteur se présentant sensiblement sous la forme d'une cuillère, de sorte à permettre une pénétration douce dudit écarteur et de la brosse à dent 1 dans la bouche, entre les dents et les muqueuses, par effet de coin adouci. Preferably, the engagement ramps 29 will have rounded contours, preferably convex, the spacer being substantially in the form of a spoon, so as to allow a soft penetration of said spacer and the toothbrush 1 in the mouth, between the teeth and the mucous membranes, by softened wedge effect.
Selon la variante de réalisation représentée sur les figures, les joues latérales 28 pourront présenter un contour sensiblement arasé qui longe sensiblement l'axe de rotation (XX'), de préférence un peu au-dessus du plan médian PMl de sorte à découvrir au moins en partie, et de préférence en majorité, la partie inférieure de la surface latérale 3L de l'organe de brossage, la couverture angulaire de l'écarteur au niveau desdites joues 28 pouvant être sensiblement comprise entre 90 degrés et 120 voire 150 degrés autour de l'axe (XX'). Ceci étant, il est également envisageable que lesdites joues 28 puissent descendre jusqu'au niveau du plan médian P , voire en dessous de ce dernier, c'est-à-dire s'approcher davantage de la zone active 5 en enveloppant l'organe de brossage 3 selon une couverture angulaire pouvant dépasser 80 degrés voir 190 degrés. According to the alternative embodiment shown in the figures, the lateral cheeks 28 may have a substantially leveled contour which substantially follows the axis of rotation (XX '), preferably a little above the median plane P Ml so as to discover the less in part, and preferably in the majority, the lower part of the lateral surface 3L of the brushing member, the angular coverage of the spacer at said cheeks 28 may be substantially between 90 degrees and 120 or even 150 degrees around of the axis (XX '). This being the case, it is also conceivable for said cheeks 28 to be able to descend to the level of the median plane P, or even below it, that is to say to approach the active zone 5 more closely by wrapping the organ brushing 3 according to an angular coverage that can exceed 80 degrees or 190 degrees.
Par ailleurs, selon une caractéristique préférentielle qui peut constituer une invention à part entière, quel que soit l'agencement de la brosse à dents 1 , de l'organe de brossage 3, ou même indépendamment de la présence d'une garniture 20, l'écarteur 25 pourra présenter, tel que cela est notamment illustré sur la figure 6, d'une part une portion de corps 31 formant une paroi protectrice rigide ou semi-rigide, et d'autre part une bordure 32 qui entoure ladite portion de corps 31 au niveau des arrêtes libres de l'écarteur, et notamment le long des rampes d'engagement 29 et/ou des joues 28, ladite bordure 32 étant plus souple que ladite portion de corps 31. Moreover, according to a preferred feature which can constitute an entirely separate invention, whatever the arrangement of the toothbrush 1, the brushing member 3, or even independently of the presence of a liner 20, spacer 25 may have, as shown in particular in Figure 6, on the one hand a body portion 31 forming a rigid or semi-rigid protective wall, and on the other hand a border 32 which surrounds said body portion 31 at the free edges of the spacer, and in particular along the engagement ramps 29 and / or cheeks 28, said edge 32 being more flexible than said body portion 31.
Avantageusement, l'écarteur 25 pourra ainsi posséder une structure bi-matériau, la portion de corps 31 , qui forme de préférence l'ossature centrale de l'écarteur, et notamment au moins une partie de la portion dorsale 27 destinée à supporter sensiblement « à plat » l'effort d'écartement des muqueuses 26, étant réalisé dans un premier matériau rigide ou semi-rigide, tandis que les portions périphériques, et notamment les chants, de l'écarteur susceptible notamment d'entrer en contact par leur "tranchant" avec les gencives ou les dents lors de la pénétration et de la manipulation de la brosse disposeront d'une bordure 32 de protection réalisée dans un second matériau plus souple que le premier. Une telle structure bi-matériau, qui permet avantageusement à l'écarteur 25 d'une part d'assurer une tenue efficace et un écartement solide des muqueuses, et d'autre part de présenter un caractère doux et atraumatique pendant les mouvements de pénétration ou de positionnement, peut notamment être réalisée par surmoulage ou toute autre technique équivalente. Advantageously, the spacer 25 may thus have a bi-material structure, the body portion 31, which preferably forms the central framework of the spacer, and in particular at least a portion of the dorsal portion 27 intended to support substantially " flat "the spreading force of the mucous membranes 26, being made of a first rigid or semi-rigid material, while the peripheral portions, including the songs, of the spacer likely to come into contact with their" cutting edge "with the gums or the teeth during penetration and manipulation of the brush will have a protective edge 32 made of a second material more flexible than the first. Such a bi-material structure, which advantageously allows the spacer 25 on the one hand to ensure an effective resistance and a solid separation of the mucous membranes, and on the other hand to have a soft and atraumatic character during penetration movements or positioning, can in particular be performed by overmolding or any other equivalent technique.
De préférence, la bordure 32 pourra se présenter sous la forme d'une lèvre, d'une jupe, ou d'une bavette relativement souple, et plus particulièrement flexible, qui borde la portion de corps 31 rigide formant une coque. Elle pourra en outre comporter une surépaisseur arrondie, de type bourrelet ou boudin, améliorant le caractère atraumatique des bords libres de l'écarteur. Preferably, the edge 32 may be in the form of a lip, a skirt, or a relatively flexible bib, and more particularly flexible, which borders the rigid body portion 31 forming a shell. It may further comprise a rounded extra thickness, bead or flange type, improving the atraumatic character of the free edges of the spacer.
Par ailleurs, la garniture souple 20 est de préférence axialement disposée sensiblement en vis-à-vis des rampes d'engagement 29, tel que cela est notamment illustré sur la figure 2. Furthermore, the flexible seal 20 is preferably axially disposed substantially opposite the engagement ramps 29, as shown in particular in FIG. 2.
Selon une caractéristique préférentielle, le premier organe de brossage 3 rotatif est monté axialement en porte-à-faux. According to a preferred characteristic, the first rotary brushing member 3 is mounted axially cantilevered.
L'extrémité distale de la brosse 1 , et plus particulièrement de l'écarteur 25, peut alors en particulier être dépourvue de paroi rigide transverse à l'axe, ou à tout le moins de palier destiné à supporter l'arbre d'entraînement 10 en vis-à-vis de l'extrémité distale 3D de l'organe de brossage, ladite extrémité distale pouvant ainsi être découverte, c'est-à- dire non recouverte par un écran rigide, en projection dans le plan frontal, sur au moins ia moitié, les deux-tiers, les trois quarts voire la totalité de sa hauteur. The distal end of the brush 1, and more particularly of the spacer 25, can then in particular be devoid of rigid wall transverse to the axis, or at least a bearing for supporting the drive shaft 10 vis-à-vis the distal end 3D of the brush member, said distal end can thus be discovered, that is to say not covered by a rigid screen, in projection in the frontal plane, on less than half, two-thirds, three-quarters or even all of its height.
De préférence, la garniture souple 20 pourra alors être utilisée pour masquer la portion terminale distale de l'arbre 10 qui supporte et entraîne ledit organe de brossage. Preferably, the flexible liner 20 can then be used to mask the distal end portion of the shaft 10 which supports and drives said brush member.
Par ailleurs, la garniture souple 20 qui peut former la surface externe de l'écarteur 25 pourra présenter des reliefs, et notamment des stries saillantes 20A sensiblement parallèles entre elles et transverses à l'axe XX', tel que cela est notamment illustré sur les figures 2, 3 et 6 afin de former des moyens de brossage de la langue. L'écarteur 25 est ainsi pourvu de stries 20A formant des moyens de brossage de la langue. Bien entendu, l'invention concerne également en tant que telle une tête de rechange 40 pour brosse à dents 1 , ladite tête pouvant avantageusement être rapportée de manière amovible sur le support 2, par des moyens de connexion appropriés, et par exemple par une fixation par vissage, emboîtement, baïonnette ou encliquetage. Avantageusement, une telle tête de rechange 40 pourra être utilisée en remplacement d'une tête usagée, ou en solution de rattrapage sur une brosse à dents de l'art antérieur afin de transformer celle-ci en brosse à dents 1 conforme à l'invention. Furthermore, the flexible lining 20 which can form the outer surface of the spacer 25 may have reliefs, and in particular protruding ridges 20A substantially parallel to each other and transverse to the axis XX ', as is illustrated in particular in FIGS. Figures 2, 3 and 6 to form means for brushing the tongue. The spacer 25 is thus provided with ridges 20A forming means for brushing the tongue. Of course, the invention also relates as such to a replacement head 40 for a toothbrush 1, said head being advantageously removably attached to the support 2, by suitable connection means, and for example by a fixing by screwing, interlocking, bayonet or snap. Advantageously, such a replacement head 40 may be used as a replacement for a used head, or in a retrofit solution on a toothbrush of the prior art in order to transform it into a toothbrush 1 according to the invention. .
Selon l'invention, ladite tête de rechange 40 pourra comprendre un premier organe de brossage 3 des dents 4 monté mobile à rotation autour d'un axe de rotation (XX'), ledit premier organe de brossage 3 présentant une surface latérale 3L qui s'étend le long de son axe de rotation (XX') entre une extrémité proximale 3P, orientée vers l'organe de support 2 sur lequel la tête 40 est destinée à être rapportée, et une extrémité distale 3D opposée, ladite surface latérale étant destinée à être amenée au contact des dents 4 pour en assurer le nettoyage, ladite tête de rechange 40 comportant une garniture souple 20, distincte du premier organe de brossage 3, qui est agencée en vis-à-vis de l'extrémité distale 3D dudit premier organe de brossage, dans le prolongement axial de ce dernier, et sensiblement transversalement à l'axe de rotation (XX'), de sorte à chevaucher au moins en partie la section transverse dudit premier organe de brossage. According to the invention, said replacement head 40 may comprise a first brushing member 3 of the teeth 4 rotatably mounted about an axis of rotation (XX '), said first brushing member 3 having a lateral surface 3L which is extends along its axis of rotation (XX ') between a proximal end 3P, oriented towards the support member 2 on which the head 40 is intended to be attached, and an opposite 3D distal end, said lateral surface being intended to be brought into contact with the teeth 4 in order to clean them, said replacement head 40 comprising a flexible lining 20, distinct from the first brushing member 3, which is arranged opposite the 3D distal end of said first brushing member, in the axial extension thereof, and substantially transversely to the axis of rotation (XX '), so as to overlap at least partially the cross section of said first brush member.
Avantageusement, ladite tête de rechange 40 embarquera l'organe de brossage 3, de préférence avec sa broche d'entraînement 10, ainsi que l'écarteur 25 supportant les poils ou picots 21 , et formera ainsi un sous-ensemble pouvant être aisément monté, démonté ou adapté sur un ou plusieurs types de support 2 de brosse à dents. Advantageously, said replacement head 40 will embark the brushing member 3, preferably with its drive pin 10, and the spacer 25 supporting the bristles or pins 21, and thus form a subassembly that can be easily mounted, disassembled or adapted to one or more types of toothbrush holder 2.
Bien entendu, les organes constitutifs de ladite tête de rechange 40 pourront présenter tout ou partie des caractéristiques décrites plus haut. Tel que cela est illustré sur les figures, ladite tête 40 pourra présenter une première portion proximale 41 , destinée à être accouplé au support 2 et présentant de préférence un étranglement, par exemple sous la forme d'un tronc de cône dont la base large vient coiffer ledit support 2, ladite portion proximale étant suivie, dans le sens des abscisses croissantes, d'une portion distale 42, de préférence venue de matière avec ladite portion proximale 41 , ladite portion dîstale 42 pouvant former l'écarteur 25 et plus particulièrement le corps rigide 31 de ce dernier, qui s'élargit à partir de l'étranglement correspondant au sommet du tronc de cône. Of course, the constituent members of said spare head 40 may have all or some of the features described above. As illustrated in the figures, said head 40 may have a first proximal portion 41, intended to be coupled to the support 2 and preferably having a constriction, for example in the form of a truncated cone whose wide base capping said support 2, said proximal portion being followed, in the direction of increasing abscissa, of a distal portion 42, preferably integral with said proximal portion 41, said distal portion 42 can form the spacer 25 and more particularly the rigid body 31 of the latter, which widens from the throat corresponding to the top of the truncated cone.
Bien entendu, la présente invention concerne également en tant que tel un écarteur 25 pour brosse à dents pourvue d'un organe de brossage 3 rotatif, ledit écarteur 25 étant destiné à recouvrir en partie la surface latérale 3L de l'organe de brossage 3 rotatif de ladite brosse à dents 1 de sorte à protéger les muqueuses 26 voisines des dents 4 de l'action dudit organe de brossage 3. Of course, the present invention also relates as such to a spacer for a toothbrush provided with a rotating brushing member 3, said spacer 25 being intended to partially cover the lateral surface 3L of the rotary brushing member 3 of said toothbrush 1 so as to protect the mucous membranes 26 adjacent to the teeth 4 of the action of said brushing member 3.
A cet effet, ledit écarteur 25 présente avantageusement un logement axial 43 conçu pour recevoir ledit organe de brossage 3, ledit logement s'ouvrant avantageusement au moins en partie dans sa portion inférieure, en formant une fenêtre laissant apparaître, et de préférence laissant saillir hors dudit logement, sous le plan médian et au niveau de la zone active 5, au moins une portion dudit organe de brossage 3. For this purpose, said spacer 25 advantageously has an axial housing 43 designed to receive said brush member 3, said housing opening advantageously at least partly in its lower portion, forming a revealing window, and preferably letting out of said housing, under the median plane and at the level of the active zone 5, at least a portion of said brushing member 3.
Avantageusement, ledit logement axial 43 présente un passage d'accès proximal 44 qui permet le passage de l'arbre moteur, et plus particulièrement de la broche 10, destiné à entraîner l'organe de brossage 3 en rotation, ledit logement 43 étant de surcroît bordé par une paroi de protection, de préférence sensiblement cylindrique, destinée à recouvrir au moins en partie, le long de l'axe de rotation (XX'), la surface latérale 3L dudit organe de brossage 3. De préférence, ladite paroi de protection 45 correspond à l'ensemble formé par la paroi dorsale 27 et les joues 28 décrites précédemment Advantageously, said axial housing 43 has a proximal access passage 44 which allows the passage of the motor shaft, and more particularly of the pin 10, for driving the brushing member 3 in rotation, said housing 43 being moreover bordered by a protective wall, preferably substantially cylindrical, intended to cover at least partly along the axis of rotation (XX '), the lateral surface 3L of said brush member 3. Preferably, said protective wall 45 corresponds to the assembly formed by the dorsal wall 27 and the cheeks 28 previously described
De façon particulièrement avantageuse, ledit écarteur 25 comporte une garniture souple 20 qui est disposée transversalement à l'axe de rotation (XX') de sorte à délimiter le logement axial 43 en vis-à-vis de l'extrémité distale 3D de l'organe de brossage 3, dans le prolongement axial de ce dernier, et de manière chevauchante avec la section transverse 3S dudit organe de brossage 3. In a particularly advantageous manner, said spacer 25 comprises a flexible liner 20 which is arranged transversely to the axis of rotation (XX ') so as to delimit the axial housing 43 vis-à-vis the distal end 3D of the brushing member 3, in the axial extension thereof, and in an overlapping manner with the transverse section 3S of said brushing member 3.
Bien entendu, les différents éléments constitutifs dudit écarteur pourront présenter tout ou partie des caractéristiques décrites précédemment. De préférence, le logement axial 43 pourra ainsi se présenter sous la forme d'un logement sensiblement tubulaire et cylindrique, centré sur l'axe de rotation (XX'), avantageusement dépourvu de paroi rigide ou de palier dans sa portion distale qui reste avantageusement ouverte, et de préférence biseautée, mais qui est néanmoins bouchée au moins en partie par la garniture souple 20, et notamment par une ou plusieurs rangées de poils ou picots 21 avantageusement flexibles, lesquels marquent la limite distale dudit logement, la plus éloignée du manche 2 et la plus proche de l'utilisateur lorsque que la brosse à dents pénètre dans sa bouche. Of course, the various constituent elements of said spacer may have all or some of the features described above. Preferably, the axial housing 43 may thus be in the form of a substantially tubular and cylindrical housing, centered on the axis of rotation (XX '), preferably without a rigid wall or bearing in its distal portion which advantageously remains open, and preferably bevelled, but which is nevertheless blocked at least in part by the flexible seal 20, and in particular by one or more rows of bristles or pins 21 advantageously flexible, which mark the distal limit of said housing, the farthest from the handle 2 and the closest to the user when the toothbrush enters his mouth.
Avantageusement, Pécarteur 25, et plus globalement la tête 40 pourra comporter, de préférence au voisinage du passage d'accès proximal 44, un palier 46, de préférence de type palier lisse, destiné à accueillir et guider à rotation la broche 10 d'entraînement de l'organe de brossage 3. Advantageously, the retractor 25, and more generally the head 40 may comprise, preferably in the vicinity of the proximal access passage 44, a bearing 46, preferably of smooth bearing type, intended to accommodate and guide the spindle 10 to rotate. of the brushing member 3.
Avantageusement, une telle disposition constructive permet de limiter le porte-à-faux dudit organe 3, en le limitant de préférence, aux jeux axiaux fonctionnels près, sensiblement à la longueur L dudit organe de brossage 3. Il permet en outre de maintenir l'organe 3 et l'arbre 10 en place par rapport audit écarteur 25, en stabilisant ces derniers, et en leur permettant notamment de mieux résister aux efforts de flexion ou d'enfoncement radiaux exercés transversalement par la dent sur l'organe de brossage 3, en réaction à la pression de brossage. Avantageusement, ledit palier 46 pourra se présenter sous la forme d'un perçage sensiblement circulaire pratiqué au sommet d'une languette prenant appui sur la face interne de la paroi dorsale 27, et de préférence venue de matière avec l'écarteur et plus particulièrement avec son corps rigide 31 , tel que cela est notamment visible sur la figure 3. Enfin, ledit écarteur 25 pourra avantageusement comporter un pied s'étendant en deçà du logement axial 43 le long de i'axe de rotation, et formant de préférence un tronc de cône creux correspondant à la portion proximale 41 de la tête 40, ledit pied offrant avantageusement un carter dissimulant et, le cas échéant guidant la broche 10. Ainsi, la brosse à dent conforme à l'invention, ainsi que ses différents accessoires, tels que tête de rechange 40 et écarteur 25, procurent avantageusement un brossage particulièrement sûr, confortable, et atraumatique, au cours duquel l'utilisateur peut aisément accéder à toutes ies zones buccales concernées par le nettoyage, et aborder les dents successivement par leurs différentes faces, toujours en utilisant la méthode du rouleau. Avantageusement, selon la configuration de brossage, et plus particulièrement selon la face traitée, le sens et la vitesse de rotation pourront être adaptés et contrôlés par l'utilisateur. Advantageously, such a constructive arrangement makes it possible to limit the cantilever of said member 3, preferably limiting it, to the functional axial clearances close to substantially the length L of said brushing member 3. It also makes it possible to maintain the member 3 and shaft 10 in place relative to said spacer 25, stabilizing them, and in particular enabling them to better withstand the radial bending or depressing forces exerted transversely by the tooth on the brushing member 3, in response to the brushing pressure. Advantageously, said bearing 46 may be in the form of a substantially circular bore made at the top of a tongue bearing on the internal face of the back wall 27, and preferably integral with the spacer and more particularly with its rigid body 31, as is particularly visible in Figure 3. Finally, said spacer 25 may advantageously comprise a foot extending below the axial housing 43 along the axis of rotation, and preferably forming a trunk hollow cone corresponding to the proximal portion 41 of the head 40, said foot advantageously providing a concealing casing and, where appropriate guiding the pin 10. Thus, the toothbrush according to the invention, as well as its various accessories, such as replacement head 40 and spacer 25, advantageously provide a particularly safe, comfortable, and atraumatic brushing, during which the user can easily access all the mouth areas involved in the cleaning, and approach the teeth successively by their different faces, always using the method of the roller. Advantageously, according to the brushing configuration, and more particularly according to the treated face, the direction and the speed of rotation can be adapted and controlled by the user.
Avantageusement, la garniture souple offre une protection non contraignante des muqueuses, des gencives, voire des dents elles-mêmes vis-à-vis de l'organe de brossage 3, et plus particulièrement de l'extrémité de l'arbre 10 qui entraîne ce dernier en rotation, de telle sorte que, grâce à l'écarteur 25, seule la partie fonctionnelle de l'organe de brossage 3 est accessible et peut atteindre les dents et agir sur ces dernières selon un mouvement de brossage conforme à la méthode du rouleau. En tant que de besoins, les poils ou picots 21 de la garniture souple 20 ne forment pas un obstacle dur susceptible de cogner dans les dents ou les gencives, mais au contraire une sorte de rideau flexible susceptible de fléchir, notamment vers l'organe et/ou de s'écarter de sorte à permettre, de même que les rampes d'engagement 29, un accès progressif en douceur, de l'organe de brossage 3 à la zone à brosser. En outre, la simplicité et le faible nombre des éléments mis en œuvre, et en particulier des éléments mobiles, permet de gagner en légèreté et en compacité, mais également de fabriquer, d'assembler ou de démonter facilement la brosse à dents, en autorisant le cas échéant le remplacement sélectif des seuls éléments usés ou endommagés, ce qui limite le coût de fabrication et d'entretien de ladite brosse à dents. POSSIBILITE D'APPLICATION INDUSTRIELLE Advantageously, the flexible liner offers non-binding protection of the mucous membranes, gums, or even the teeth themselves vis-à-vis the brushing member 3, and more particularly the end of the shaft 10 which leads to last rotation, so that, with the spacer 25, only the functional portion of the brush member 3 is accessible and can reach the teeth and act on the latter in a brushing movement according to the roller method . As needed, the bristles 21 of the flexible lining 20 do not form a hard obstacle likely to bump into the teeth or gums, but on the contrary a kind of flexible curtain likely to flex, especially to the organ and or to deviate so as to allow, as the engagement ramps 29, smooth progressive access, the brush member 3 to the area to be brushed. In addition, the simplicity and the small number of elements used, and in particular mobile elements, makes it possible to gain in lightness and compactness, but also to easily manufacture, assemble or disassemble the toothbrush, allowing if necessary the selective replacement of only worn or damaged elements, which limits the cost of manufacturing and maintenance of said toothbrush. POSSIBILITY OF INDUSTRIAL APPLICATION
L'invention trouve son application industrielle dans la fabrication des brosses à dents, en particulier les brosses à dents électriques. The invention finds its industrial application in the manufacture of toothbrushes, in particular electric toothbrushes.

Claims

REVENDICATIONS
Brosse à dents (1) comprenant : Toothbrush (1) comprising:
- un organe de support (2), de type manche, a support member (2) of the handle type,
- un premier organe de brossage (3) des dents monté mobile à rotation sur ledit organe de support, autour d'un axe de rotation (XX'), ledit premier organe de brossage présentant une surface latérale (3L) qui s'étend le long de son axe de rotation (XX1) entre une extrémité proximale (3P), orientée vers l'organe de support, et une extrémité distale (3D) opposée, ladite surface latérale étant destinée à être amenée au contact des dents (4) pour en assurer le nettoyage, ladite brosse à dents étant caractérisée en ce qu'elle comporte une garniture souple (20), distincte du premier organe de brossage (3), qui est agencée en vis- à-vis de l'extrémité distale (3D) dudit premier organe de brossage, dans le prolongement axial de ce dernier et sensiblement transversalement à l'axe de rotation (XX'), de sorte à chevaucher au moins en partie la section transverse (3S) dudit premier organe de brossage (3). a first toothbrushing member (3) rotatably mounted on said support member about an axis of rotation (XX '), said first brush member having a lateral surface (3L) extending along its axis of rotation (XX 1 ) between a proximal end (3P), oriented towards the support member, and an opposite distal end (3D), said lateral surface being intended to be brought into contact with the teeth (4) for cleaning, said toothbrush being characterized in that it comprises a flexible liner (20), distinct from the first brushing member (3), which is arranged opposite the distal end ( 3D) of said first brush member, in the axial extension thereof and substantially transverse to the axis of rotation (XX '), so as to overlap at least partially the transverse section (3S) of said first brush member (3). ).
Brosse à dents selon la revendication 1 caractérisée en ce que la garniture souple (20) est fixe par rapport au support (2). Toothbrush according to claim 1 characterized in that the flexible liner (20) is fixed relative to the support (2).
Brosse à dents selon la revendication 1 ou 2 caractérisée en ce que la garniture souple (20) comprend une pluralité de poils ou picots ou de touffes de poils ou picots (21), de préférence agencés en une ou plusieurs rangées sensiblement normales à l'axe de rotation (XX'). Toothbrush according to claim 1 or 2 characterized in that the flexible liner (20) comprises a plurality of bristles or pins or tufts of bristles or pins (21), preferably arranged in one or more rows substantially normal to the rotation axis (XX ').
Brosse à dents selon l'une des revendications précédentes caractérisée en ce que la garniture souple (20) forme un écran couvrant, en projection dans un plan (PF) normal à l'axe de rotation, au moins 20 %, au moins 30 %, au moins 50 %, voire au moins 75 % de la superficie (3S) occupée par l'organe de brossage en projection dans ce même plan. 5 - Brosse à dents selon l'une des revendications précédentes caractérisée en ce que la garniture souple (20) forme un second organe de brossage. Toothbrush according to one of the preceding claims, characterized in that the flexible lining (20) forms a screen covering, in projection in a plane (P F ) normal to the axis of rotation, at least 20%, at least 30 %, at least 50%, or even at least 75% of the area (3S) occupied by the brushing member in projection in this same plane. 5 - toothbrush according to one of the preceding claims characterized in that the flexible seal (20) forms a second brush member.
6 - Brosse à dents selon l'une des revendications précédentes caractérisée en ce qu'elle comporte un écarteur (25) recouvrant en partie la surface latérale (3L) du premier organe de brossage (3) de sorte à protéger les muqueuses (26) voisines des dents (4) de l'action dudit organe de brossage (3), et en ce que la garniture souple (20) est fixée audit écarteur (25), dans une portion distale de ce dernier axialement située au-delà de l'extrémité distale (3D) dudit premier organe de brossage (3). 7 » Brosse à dents selon la revendication 6 caractérisée en ce que l'écarteur (25) comprend un élément de paroi dorsale (27), des joues (28) latérales situées axialement en retrait vers le manche par rapport à l'extrémité distale dudit élément de paroi dorsale, et plus près de la zone active (5) de la brosse à dents (1) que ledit élément de paroi dorsale, ainsi que des rampes d'engagement (29) sensiblement obliques qui relient l'élément de paroi dorsale (27) auxdites joues (28) en descendant vers la zone active (5) dans le sens des abscisses axiales décroissantes, de sorte à former un bec biseauté (30). 6 - toothbrush according to one of the preceding claims characterized in that it comprises a spacer (25) partially covering the side surface (3L) of the first brush member (3) so as to protect the mucous membranes (26) adjacent teeth (4) of the action of said brush member (3), and in that the flexible liner (20) is attached to said spacer (25), in a distal portion thereof axially located beyond the distal end (3D) of said first brushing member (3). 7 "toothbrush according to claim 6 characterized in that the spacer (25) comprises a back wall member (27), side cheeks (28) located axially recessed towards the handle relative to the distal end of said dorsal wall member, and closer to the active area (5) of the toothbrush (1) than said back wall member, as well as substantially oblique engagement ramps (29) which connect the back wall member (27) to said cheeks (28) descending towards the active zone (5) in the direction of the decreasing axial abscissae, so as to form a beveled nose (30).
8 - Brosse à dents selon la revendication 7 caractérisée en ce que la garniture souple (20) est disposée axialement en vis-à-vis des rampes d'engagement (29). 9 - Brosse à dents selon l'une des revendications précédentes, caractérisée en ce que l'écarteur 25 est pourvu de stries (20A) formant des moyens de brossage de langue. 8 - toothbrush according to claim 7 characterized in that the flexible seal (20) is disposed axially vis-à-vis the engagement ramps (29). 9 - toothbrush according to one of the preceding claims, characterized in that the spacer 25 is provided with grooves (20A) forming tongue brushing means.
10 - Brosse à dents selon l'une des revendication 6 à 9 caractérisée en ce que i'écarteur (25) présente d'une part une portion de corps (31) formant une paroi protectrice rigide ou semi-rigide et d'autre part une bordure (32) qui entoure ladite portion de corps au niveau des arêtes libres de l'écarteur et qui est plus souple que ladite portion de corps. 11 - Brosse à dents selon l'une des revendications précédentes caractérisée en ce qu'elle comporte un unique organe de brossage (3) rotatif. 10 - toothbrush according to one of claims 6 to 9 characterized in that 1'écarteur (25) has on the one hand a body portion (31) forming a rigid or semi-rigid protective wall and secondly a border (32) surrounding said body portion at the free edges of the spacer and which is more flexible than said body portion. 11 - toothbrush according to one of the preceding claims characterized in that it comprises a single brushing member (3) rotatable.
12 - Brosse à dents selon l'une des revendications précédentes caractérisée en ce que l'axe de rotation (XX') est sensiblement parallèle à, et de préférence sensiblement confondu avec, la direction principale d'extension du manche (2). 12 - toothbrush according to one of the preceding claims characterized in that the axis of rotation (XX ') is substantially parallel to, and preferably substantially coincides with, the main direction of extension of the handle (2).
13 - Brosse à dents selon l'une des revendications précédentes caractérisée en ce que le premier organe de brossage (3) rotatif est monté axialement en porte-à-faux et en ce que la garniture souple (20) masque la portion terminale distale de l'arbre ( 0) qui supporte ledit organe de brossage. 14 - Brosse à dents selon l'une des revendications précédentes caractérisée en ce qu'elle comporte des moyens d'entraînement (6) continu conçus pour entraîner le premier organe de brossage (3) en rotation autour de l'axe (XX') selon un nombre quelconque de tours dans le même sens. 13 - toothbrush according to one of the preceding claims characterized in that the first rotating brushing member (3) is mounted axially cantilever and in that the flexible seal (20) masks the distal end portion of the shaft (0) which supports said brush member. 14 - toothbrush according to one of the preceding claims characterized in that it comprises continuous drive means (6) designed to drive the first brushing member (3) in rotation about the axis (XX ') according to any number of turns in the same direction.
Tête de rechange (40) pour brosse à dents (1) comprenant un premier organe de brossage (3) des dents monté mobile à rotation autour d'un axe de rotation (XX'), ledit premier organe de brossage présentant une surface latérale (3L) qui s'étend le long de son axe de rotation (XX') entre une extrémité proximale (3P), orientée vers l'organe de support (2) sur lequel la tête (40) est destinée à être rapportée, et une extrémité distale (3D) opposée, ladite surface latérale étant destinée à être amenée au contact des dents (4) pour en assurer le nettoyage, ladite tête de rechange pour brosse à dents étant caractérisée en ce qu'elle comporte une garniture souple (20), distincte du premier organe de brossage (3), qui est agencée en vis-à-vis de l'extrémité distale dudit premier organe de brossage, dans le prolongement axial de ce dernier et sensiblement transversalement à l'axe de rotation (XX'), de sorte à chevaucher au moins en partie la section transverse (3S) dudit premier organe de brossage. Spare head (40) for a toothbrush (1) comprising a first toothbrushing member (3) rotatably mounted about an axis of rotation (XX '), said first brush member having a lateral surface ( 3L) which extends along its axis of rotation (XX ') between a proximal end (3P), oriented towards the support member (2) on which the head (40) is intended to be reported, and a opposite distal end (3D), said lateral surface being intended to be brought into contact with the teeth (4) to ensure cleaning thereof, said replacement head for a toothbrush being characterized in that it comprises a flexible lining (20) , distinct from the first brushing member (3), which is arranged vis-à-vis the distal end of said first brush member, in the axial extension thereof and substantially transversely to the axis of rotation (XX ' ), so as to overlap at least partially the transverse section (3 S) of said first brush member.
Ecarteur (25) pour brosse à dents pourvue d'un organe de brossage (3) rotatif, ledit écarteur étant destiné à recouvrir en partie la surface latérale (3L) de l'organe de brossage rotatif de ladite brosse à dents de sorte à protéger les muqueuses (26) voisines des dents (4) de l'action dudit organe de brossage, ledit écarteur présentant un logement axial (43) conçu pour recevoir ledit organe de brossage, ledit logement présentant un passage d'accès proximal (44) permettant ie passage de l'arbre moteur (10) destiné à entraîner l'organe de brossage, ledit logement étant bordé par une paroi de protection (45) destinée à recouvrir au moins en partie, le long de l'axe de rotation, la surface latérale (3L) dudit organe de brossage, ledit écarteur étant caractérisé en ce qu'il comporte une garniture souple (20) disposée transversalement à l'axe de rotation (XX1) de sorte à délimiter le logement axial (43) en vis-à-vis de l'extrémité distale (3D) de l'organe de brossage, dans le prolongement axiai de ce dernier, et de manière chevauchante avec la section transverse (3S) dudit organe de brossage (3). Spreader (25) for a toothbrush provided with a rotating brushing member (3), said spacer being intended to partially cover the lateral surface (3L) of the rotary brushing member of said toothbrush so as to protect the mucosa (26) adjacent teeth (4) of the action of said brush member, said spacer having an axial housing (43) adapted to receive said brush member, said housing having a proximal access passage (44) allowing passage of the motor shaft (10) intended to drive the brushing member, said housing being bordered by a protective wall (45) intended to cover, at least partly, along the axis of rotation, the lateral surface (3L) of said brushing member, said spacer being characterized in that it comprises a flexible lining (20) disposed transversely to the axis of rotation (XX 1 ) so as to delimit the axial housing (43) vis-à-vis -vis the distal end (3D) of the brush member, in the axial extension thereof, and in an overlapping manner with the transverse section (3S) of said brush member (3).
EP11796751.3A 2011-11-16 2011-11-16 Toothbrush having a terminal row of bristles or spikes Withdrawn EP2779938A1 (en)

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PCT/FR2011/052657 WO2013072570A1 (en) 2011-11-16 2011-11-16 Toothbrush having a terminal row of bristles or spikes

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