EP1121034B1 - Brosse, en particulier brosse a dents - Google Patents

Brosse, en particulier brosse a dents Download PDF

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Publication number
EP1121034B1
EP1121034B1 EP99953793A EP99953793A EP1121034B1 EP 1121034 B1 EP1121034 B1 EP 1121034B1 EP 99953793 A EP99953793 A EP 99953793A EP 99953793 A EP99953793 A EP 99953793A EP 1121034 B1 EP1121034 B1 EP 1121034B1
Authority
EP
European Patent Office
Prior art keywords
bristle
toothbrush according
perforated plate
bristle carrier
brush body
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.)
Expired - Lifetime
Application number
EP99953793A
Other languages
German (de)
English (en)
Other versions
EP1121034A1 (fr
Inventor
Armin Seifert
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.)
M&C Schiffer GmbH
Original Assignee
M&C Schiffer GmbH
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 M&C Schiffer GmbH filed Critical M&C Schiffer GmbH
Publication of EP1121034A1 publication Critical patent/EP1121034A1/fr
Application granted granted Critical
Publication of EP1121034B1 publication Critical patent/EP1121034B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A46B7/08—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement as a rotating disc

Definitions

  • the present invention relates to a toothbrush according to the preamble of claim 1.
  • the invention further relates to a bristle insert according to claim 16.
  • this known toothbrush is the perforated plate pivotally mounted on the brush body.
  • the distance between the perforated plate and the brush body is changed.
  • This also changes the free length of the user-side ends of the Bristle filaments, that is, the portion of the bristle filaments that contains the perforated plate protrudes, so that by the pivoting movement of the perforated plate relative to the Brush body causes a change in the stiffness of the bristle filaments.
  • overtop the bristle filaments overtop the bristle filaments the perforated plate with a relatively large length, so the stiffness and thus the hardness of the brush is low; with a short length it is Rigidity high.
  • DE-A-39 28 919 describes a massage device with a cup-shaped design Base body and one in engagement, also pot-shaped trained base part known.
  • the base part has recesses through which protrude through a plurality of massage elements designed as bundles of bristles.
  • the attachment-side ends of the massage elements are in a holder added, which is in threaded engagement with the base body. By rotation the holder is the distance between the fastening-side ends of the massage elements changed compared to the base part.
  • the base part is ring-shaped Edge in a correspondingly formed circumferential annular groove of the base body recorded and locked with the base body.
  • the toothbrushes previously known from the prior art have the disadvantage that they do not meet today's hygienic requirements suffice. Between the toothbrush body and the attachment-side end of the Perforated plate is a wedge-shaped slot, in which bacteria and contaminants can fix. In the area of bristle filaments there is also between the perforated plate and the brush body a gap in which there is dirt can fix, so that the toothbrush after a certain period of use makes an unsightly impression.
  • the toothbrushes mentioned above also have the disadvantage that the free length of all of the perforated plate protruding Bristle filaments are not uniform due to the pivoting movement of the perforated plate is changed.
  • the present invention has for its object an adjustable in its rigidity To create a toothbrush that meets today's hygienic requirements which has an attractive appearance even after a long period of use offers and its rigidity can be adjusted with high accuracy. Furthermore the present task is based on a bristle insert as a replacement and Specify consumable part for the toothbrush according to the invention.
  • the present invention specified a toothbrush according to claim 1.
  • the brush body is by the perforated plate rotatably held on the brush body to the attachment-side ends of the bristle filaments. These will held in a bristle holder which is in threaded engagement with the brush body is.
  • the bristle holder is relative to the brush body rotated so that the bristle carrier relative to the brush body according to the Thread pitch in the axial direction of a bore receiving the bristle carrier emigrated.
  • the perforated plate only follows the rotation of the bristle carrier, so that a change in the rigidity of the cleaning elements is brought about without there is an open gap between the perforated plate and the brush body in which pollution can accumulate.
  • the bristle carrier changes due to the thread engagement overall its position relative to the perforated plate, so that all on the The length of the cleaning elements held by bristle carriers is changed uniformly become. Accordingly, the stiffness of all of the perforated plates projecting changes Cleaning elements, for example formed by bristle filaments are, in an identical way. Otherwise, the brush according to the invention has the further The advantage is that the desired stiffness due to the rotation of the bristle carrier the bristle filaments can be adjusted precisely.
  • the perforated plate is flush with the top of the brush body. This measure is in the area of those Bristles, the stiffness of which can be changed, on the surface of the Toothbrush created a smooth surface.
  • an annular groove is also provided on the brush body in which the perforated plate is detachable and rotatable.
  • the releasable connection created between perforated plate and brush body by a snap connection is also provided on the brush body in which the perforated plate is detachable and rotatable.
  • the perforated plate can thus be removed from the brush body and the bristle holder be twisted out of the brush body to attach to the bristle holder exchange worn bristle filaments. If all bristle filaments the toothbrush is arranged on the one or more bristle carriers are, the toothbrush does not have to wear all bristle filaments overall, but only the bristle carrier carrying the bristle filaments and preferably exchanged the perforated plate penetrated by the bristle filaments become.
  • the bristle carrier is preferably detachable together with the perforated plate Brush body connected.
  • a bristle insert is formed by this detachable unit, which can be used as an exchange part in the brush body.
  • the detachable connection between the perforated plate and the brush body is preferably by a Snap connection formed, which is designed such that pressure against the Bristle carrier presses this against the perforated plate and the perforated plate together with the bristle holder can be removed from the brush body.
  • At least two are preferably distributed over the circumference of the bristle carrier arranged threaded webs provided, being between the perforated plate and a threads formed on the brush body for the thread webs guide grooves are provided.
  • the removal of the bristle carrier and perforated plate is preferably simplified by that the respective insertion grooves with the end of the threads for the Align the threaded pin.
  • the thread webs abut in one end position a surface for the thread formed on the brush body.
  • This Boundary surface is aligned with one side surface of a guide groove, so that the thread bars come to rest in the insertion grooves in the end position and the Bristle holder in this end position only by moving axially towards the perforated plate can be removed from the brush body.
  • the present invention is on a hardness scale on the end face of the bristle carrier facing away from the bristle filaments provided so that the user of the toothbrush is able to choose a desired one
  • the stiffness of the bristle filaments can be predetermined.
  • the bristle holder can be connected with a knurled ring to adjust the rigidity be the part of the brush body surrounding the bristle carrier at least partially towered over. From a hygienic point of view, however, it is preferable instead of such a knurled ring facing away from the bristle filaments Front of the bristle carrier an engagement area, for example for the Finger of the user to create. In terms of ease of use, it is however, to be preferred to design the engagement area such that a bristle carrier tool can be brought into operative connection with the bristle carrier.
  • Bristle carrier tool is preferably detachably connected to the brush body, so that the bristle holder tool is always at hand.
  • the present invention also provides a bristle insert with cleaning elements indicated for a toothbrush with the features of claim 16.
  • Such one Bristle insert is suitable as a spare part for the toothbrush mentioned above, which is also an electrically powered one Toothbrush can be.
  • Preferred configurations of the bristle insert are specified in dependent claims 17 to 22.
  • Fig. 1 is a partially sectioned side view of a toothbrush Embodiment of the present invention shown.
  • the toothbrush comprises a handle 2 and a brush head 4, with a tapered between the two Neck area 6 is formed, which to avoid injury to the Oral mucous membranes required by the brush head 4 attacking in the mouth area Provides elasticity between handle 2 and brush head 4.
  • a bristle carrier tool 8 On that End of the handle 2 facing away from the brush head 4 is a bristle carrier tool 8 arranged.
  • This bristle carrier tool 8 is not shown Snap connection connected to the handle 2.
  • the handle 2 and the bristle holder tool 8 each have a cylindrical core 10 on the The circumference of three ribs 12 extending in the longitudinal extent of the handle 2 are distributed.
  • the diameter of the core 10 and the ribs 12 are in the transition area between the handle 2 and the bristle carrier tool 10 formed identically. Only in the area of the ribs 12 is beveled a notch 11 is provided on the opposing rib end faces signals the transition between handle 2 and bristle carrier tool 8.
  • the ribs 12 on the one hand and the core 10 on the other are both on the handle 12 as well as on the bristle carrier tool 8 due to a different component formed, the ribs 12 preferably by a soft elastic Plastic are formed. Alternatively, the ribs 12 can also consist of one harder material.
  • the brush head 4 is formed by an essentially annular component, which connects cohesively to the neck area 6.
  • a recess 13 of the annular brush head 4 is a thread 14 formed, which is shown in more detail in Fig. 2.
  • bristle carrier 16 provided thread webs 18 insertion grooves 20 molded.
  • a side surface 22 which laterally delimits the insertion groove 20 forms one Stop to an upper thread of thread 14.
  • An annular groove 24 is formed below the upper edge of the brush head 4, whose radius is smaller than the distance between the center of the ring-shaped Brush head 4 and the circumferential boundary surface of the insertion 20. This configuration makes the brush head particularly compact 4 created.
  • the bristle carrier 16 shown in FIG. 3 is essentially cylindrical Body formed, on the circumference of the threaded webs 18 (here two) distributed are arranged.
  • a variety of bristle bundles 25 bristle filaments 26 extends through the upper end face of the bristle carrier 16 and is on this attached.
  • the attachment of the bristle filaments 26 can either be conventional Way, that is done by means of a metallic anchor.
  • the bristling takes place of the bristle carrier 16 with the perforated disc in place, i.e. the bristle filaments 26 are introduced into the bristle carrier 16 through the perforated disk.
  • the perforated disc is preferably together with the Bristle carrier 16 is injected, the mold cavity for the perforated disk being designed in this way is that the individual bristle bundles to be connected to the bristle carrier 16 are flowed around without contact.
  • the end face of the bristle carrier 16 facing away from the bristle filaments 26 has one slight convex curvature. As can be seen in FIG. 4, is on this surface a central bore 28 is formed, into which a on the bristle carrier tool 8 trained pin 30 can be used with a cylindrical cross-sectional area.
  • the bore 28 acts with the pin 30 as a centering for the bristle carrier tool 8.
  • the cutouts 32 are designed such that they are in the convex surface of the bristle carrier 16 incised and the ribs 12 of the bristle carrier tool 8 in a form-fitting manner the cutouts 32 can be introduced.
  • a hardness scale 34 is attached to the front side of the bristle carrier 16, that by optically distinguishable, at the edge of the circular face arranged points is formed. This hardness scale is using a, on the bottom of the brush head 4, colored by the material of the neck area 6 different reading web 36 readable.
  • a bristle insert that fits into the recess 13 formed on the brush head 4 can be used as a wearing part, consists of the bristle carrier 16 and one of protrude through the bristle filaments 26 combined into bristle bundles 25 Perforated plate 38 shown in Figs. 5 and 6.
  • the perforated plate 38 is circular Formed disc, corresponding to the position of the respective bristle bundle 25 38 holes are provided on the perforated plate.
  • the diameter of this Bores correspond to the thickness of each, the corresponding hole protruding bundles of bristles 25.
  • Bristle bundle 25 identical diameter used.
  • the geometric configuration corresponds the holes of the perforated plate 38 of the boundary of the respective receptacle for the corresponding bristle bundles 25 in the bristle carrier 16.
  • the Threaded webs 18 brought into overlap with the respective insertion grooves 20. After that becomes the bristle carrier 16 together with one of the bristle bundle 25 protruded and on the top of the bristle carrier 16 resting perforated plate 38th pressed into the recess 13 in the axial direction. A convex pushes against the Circumferential bead 40 of the annular groove 24 formed on the side surface of the perforated plate 38 assigned, and this on the top covering locking lugs 42 radially outwards.
  • the bristle carrier tool 8 in the exemplary embodiment shown subtracted from the handle 2 in the axial direction.
  • the pin 30 is in the bore 28 inserted and the ribs 12 are so rotated on the bristle carrier 16 centered bristle carrier tool 8 introduced into the recesses 32.
  • the bristle holder tool 8 By actuating the bristle holder tool 8, the bristle holder 16 is now rotated counterclockwise so that the bristle carrier 16 according to the slope of the thread 14 migrates in the axial direction along the recess 13.
  • the rotatable Perforated plate 38 mounted in the annular groove 24 follows this rotation of the bristle carrier 16.
  • the rotation of the bristle carrier 16 causes the bristle carrier 16 removed from the perforated plate 38.
  • the attachment-side ends of the bristle filaments 26 move in the same way away from the perforated plate 28, whereby the die Perforated plate 38 outwardly projecting free length of the bristle filaments 26 is reduced and thus the stiffness of the bristle increases.
  • the desired stiffness can be set precisely via the hardness scale 34 and the reading bar 36 can be predetermined.
  • the engagement of the bristle holder tool 8 enables easy adjustment of the stiffness of the toothbrush. In the embodiment shown, any medically justifiable Adjust the stiffness of the toothbrush bristles.
  • bristle filaments are 26 arranged on the bristle carrier 16. This has the advantage of being worn out Bristle filaments 26 are replaced by replacing the bristle carrier 16 can be. That from the handle 2, the brush head 4, the neck area 6 and the bristle carrier tool 8 formed component can be independent of wear the bristle filaments 26 can be used further. To remove the Bristle carrier 16 must be rotated clockwise until the thread webs 18 pushed against the side surface 22 of the insertion grooves 20.
  • FIGS. 7 and 8 show two further exemplary embodiments, in which in Corresponding to the embodiment explained above, a bristle carrier 16 is held in threaded engagement on a brush head 4. Longitudinal the toothbrush in front of and behind the bristle carrier 16 are further bristle bundles 50, 52 are provided, which are fastened to the brush head 4 in a manner known per se and the stiffness is not adjustable.
  • bristle bundles 52 are in the longitudinal direction cut the bristle bundles 52 adjacent to the neck region 6 in such a way that the bristle surface comprising the ends of the bristle bundles 52 on the use side is inclined forward, whereas the the front bundle of bristles 50 forming bristle filaments are cut so that the usage side Ends of this bristle bundle 50 bristle surface to the rear, that is is inclined to the neck region 6.
  • the arranged on the bristle carrier 16 Bristle bundles 25 are cut spherically.
  • the bristle carrier 16 in which the bristle filaments 25 project beyond the perforated plate to the maximum, are arranged adjacent to the bristle filaments 25, not in theirs Adjustable bristle bundles 50, 52 compared to the adjustable bristle bundles 25 set lower.
  • the bristle filaments of the bristle bundles 50, 52 can face each other the bristle filaments of the bristle bundles 25 made of a different material be educated and differ from them in particular in hardness. If the adjustable bristle bundles 25 are turned by rotating the bristle carrier 16 extended, the influence of these bristle bundles 25 is increased when exposed to cleaning; if the bristle bundles 25 are shortened, the cleaning behavior of the Bristle bundle 50, 52. This allows not only the rigidity of the toothbrush, but also the overall cleaning behavior of the toothbrush by turning the bristle holder 16 change.
  • FIG. 1 Another embodiment of the present invention is shown in FIG.
  • TPE thermoplastic elastomer
  • FIG. 9 shows various cross sections of cleaning elements that can either be formed by bundles of bristles or by TPE bristles.
  • the bristle carrier 16 can optionally or in combination with cleaning elements have closed cross-sectional profile, the triangular (reference numeral 56), round (Reference number 58), square or rectangular (reference number 60) or polygonal (Reference numeral 62) can be.
  • the cross section can also be essentially C-shaped be trained.
  • reference numeral 64 such an open profile is one Cleaning element shown. It is also possible to change the cross-sectional profile of the cleaning elements star-shaped or cross-shaped (reference numeral 66).
  • the cleaning element can have a closed cross-sectional geometry Have hollow profile (reference numeral 68).
  • the hollow profile shown has an irregular shaped peripheral surface, the wall thickness is proportional is small compared to the diameter of the hollow profile.
  • Such open cross-sectional shapes are particularly suitable for forming a hollow massage stick.
  • the present invention is not restricted to the exemplary embodiments shown.
  • several bristle carriers can also be rotated
  • Perforated plates are associated with the brush body, are provided to adjustability of different hardness ranges of the bristle of a toothbrush create.
  • any type of thread engagement between Bristle holder and brush body can be realized.
  • the one in the Drawing shown embodiment is the provided on the brush head 4 Recess 13 through the perforated plate 38 on the one hand and through the bottom or The peripheral surface of the bristle carrier 16, on the other hand, is encapsulated to prevent penetration to minimize dirt and impurities in the recess 13.

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  • Brushes (AREA)

Claims (22)

  1. Brosse à dents avec un corps de brosse qui comprend un manche (2) et une tête de brosse (4) portant des éléments de nettoyage (26), et une plaque perforée (38) qui est traversée par les éléments de nettoyage (26), la distance entre la plaque perforée (38) et la tête de brosse (4) pouvant être modifiée afin de modifier la longueur libre, dépassant de ladite plaque perforée (38), des éléments de nettoyage (26),
       caractérisée en ce que les éléments de nettoyage (26, 54) sont disposés sur un support de poils (16) qui est fixé à la tête de brosse (4) par vissage, et en ce que la plaque perforée (38) est fixée à la tête de brosse (4) de manière à pouvoir tourner.
  2. Brosse à dents selon la revendication 1, caractérisée en ce que la plaque perforée (38) forme une surface plane avec le côté supérieur du corps de brosse (2, 4, 6).
  3. Brosse à dents selon la revendication 1 ou 2, caractérisée en ce qu'il est prévu sur le corps de brosse (2, 4, 6) une rainure annulaire (24) dans laquelle la plaque perforée (38) est fixée de manière à pouvoir être détachée et à pouvoir tourner.
  4. Brosse à dents selon la revendication 3, caractérisée en ce que la plaque perforée (38) est encliquetée sur le corps de brosse (4).
  5. Brosse à dents selon l'une des revendications précédentes, caractérisée en ce que le support de brosse (16), avec la plaque perforée (38), est relié de manière amovible au corps de brosse (4).
  6. Brosse à dents selon l'une au moins des revendications précédentes, caractérisée en ce que le support de brosse (16) comporte au moins deux pattes pour filetage (18) réparties sur sa circonférence, et en ce qu'il est prévu, entre la plaque perforée (38) et un filetage (14) formé sur le corps de brosse (2, 4, 6), des rainures d'introduction (20) pour les pattes (18).
  7. Brosse à dents selon la revendication 6, caractérisée en ce que les rainures d'introduction (20) se trouvent dans l'alignement de l'extrémité des pas de vis prévus pour les pattes pour filetage (18).
  8. Brosse à dents selon l'une au moins des revendications précédentes, caractérisée en ce qu'une graduation de dureté (34) est prévue sur le côté frontal du support de poils (16) opposé aux filaments de poils (26).
  9. Brosse à dents selon l'une au moins des revendications précédentes, caractérisée en ce qu'un outil pour support de poils (8) est relié de manière amovible au corps de brosse (2, 4, 6).
  10. Brosse à dents selon la revendication 9, caractérisée en ce qu'il est prévu sur le côté frontal du support de poils (16) opposé aux filaments de poils (26) au moins une zone d'accouplement (28, 32) pour l'outil pour support de poils (8).
  11. Brosse à dents selon la revendication 9 ou 10, caractérisée en ce qu'il est prévu sur le côté frontal du support de poils (16) opposé aux filaments de poils (26) un centrage (28) pour l'outil pour support de poils (8).
  12. Brosse à dents selon l'une au moins des revendications 9 à 11, caractérisée en ce que l'outil pour support de poils (8) est apte à être relié au corps de brosse (2) par emboítement.
  13. Brosse à dents selon l'une au moins des revendications précédentes, caractérisé en ce qu'il est prévu sur le corps de brosse (4) au moins une ouverture de rinçage qui débouche à l'extérieur et qui communique avec l'interstice défini entre le corps de brosse (4) et le support de poils (16).
  14. Brosse à dents selon l'une des revendications précédentes, caractérisée en ce qu'un élément de nettoyage est formé par une tige de massage souple (54).
  15. Brosse à dents selon l'une des revendications précédentes, caractérisée en ce qu'il est prévu sur le corps de brosse des éléments de nettoyage supplémentaires, en particulier en forme de faisceaux de poils.
  16. Accessoire à poils avec des éléments de nettoyage (26, 54) pour une brosse à dents selon l'une au moins des revendications précédentes,
       caractérisé en ce qu'il se compose d'un support de poils (16) sur la surface périphérique duquel sont formées des pattes pour filetage (18), et en ce qu'il est prévu une plaque perforée (38) qui est traversée par les éléments de nettoyage.
  17. Accessoire à poils pour une brosse à dents selon la revendication 16, caractérisé en ce que la plaque perforée (38) comprend au moins un bord d'encliquetage.
  18. Accessoire à poils pour une brosse à dents selon la revendication 17, caractérisé en ce que le bord d'encliquetage est défini par un renflement annulaire (40) qui est formé sur la surface périphérique de la plaque perforée (38).
  19. Accessoire à poils pour une brosse à dents selon l'une au moins des revendications 16 à 18 précédentes, caractérisé en ce qu'il est prévu sur le côté frontal du support de poils (16) opposé aux éléments de nettoyage (26 ; 54) une zone d'accouplement (28, 32) pour l'outil pour support de poils (8).
  20. Accessoire à poils pour une brosse à dents selon l'une au moins des revendications 16 à 19 précédentes, caractérisé en ce qu'il est prévu sur la surface frontale du support de poils (16) opposée aux éléments de nettoyage (26 ; 54) un centrage (28) pour l'outil pour support de poils (8).
  21. Accessoire à poils pour une brosse à dents selon l'une au moins des revendications 16 à 20 précédentes, caractérisé en ce qu'au moins un élément de nettoyage est formé par une tige de massage élastique (54).
  22. Accessoire à poils pour une brosse à dents selon la revendication 21, caractérisé en ce que la tige de massage (54) est fabriquée à partir d'un élastomère thermoplastique.
EP99953793A 1998-10-13 1999-10-13 Brosse, en particulier brosse a dents Expired - Lifetime EP1121034B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29818046U 1998-10-13
DE29818046U DE29818046U1 (de) 1998-10-13 1998-10-13 Bürste, insbesondere Zahnbürste
PCT/EP1999/007672 WO2000021406A1 (fr) 1998-10-13 1999-10-13 Brosse, en particulier brosse a dents

Publications (2)

Publication Number Publication Date
EP1121034A1 EP1121034A1 (fr) 2001-08-08
EP1121034B1 true EP1121034B1 (fr) 2003-03-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99953793A Expired - Lifetime EP1121034B1 (fr) 1998-10-13 1999-10-13 Brosse, en particulier brosse a dents

Country Status (5)

Country Link
US (1) US6374448B2 (fr)
EP (1) EP1121034B1 (fr)
AT (1) ATE235177T1 (fr)
DE (2) DE29818046U1 (fr)
WO (1) WO2000021406A1 (fr)

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ATE235177T1 (de) 2003-04-15
US6374448B2 (en) 2002-04-23
EP1121034A1 (fr) 2001-08-08
WO2000021406A1 (fr) 2000-04-20
DE29818046U1 (de) 2000-02-17
US20010029639A1 (en) 2001-10-18
DE59904774D1 (de) 2003-04-30

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