WO2002051331A1 - Portable device for cleaning teeth - Google Patents

Portable device for cleaning teeth Download PDF

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Publication number
WO2002051331A1
WO2002051331A1 PCT/FR2001/004113 FR0104113W WO02051331A1 WO 2002051331 A1 WO2002051331 A1 WO 2002051331A1 FR 0104113 W FR0104113 W FR 0104113W WO 02051331 A1 WO02051331 A1 WO 02051331A1
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WO
WIPO (PCT)
Prior art keywords
nozzle
pipe
head
injection head
domestic water
Prior art date
Application number
PCT/FR2001/004113
Other languages
French (fr)
Inventor
Alain Le Bihan
Original Assignee
Alain Le Bihan
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 Alain Le Bihan filed Critical Alain Le Bihan
Publication of WO2002051331A1 publication Critical patent/WO2002051331A1/en

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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
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A61C17/028—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication with intermittent liquid flow
    • 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
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A61C17/0202—Hand-pieces
    • 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
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A61C17/032—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication using pressurised tap-water, e.g. rinsing devices specially adapted for being connected to the main water supply

Definitions

  • the present invention relates to a portable device for cleaning teeth.
  • Document US 3 883 074 discloses a portable device for cleaning teeth, of the type comprising a domestic water supply pipe, an injection head, and elastic tubular means interposed between said pipe and said head for drawing said water intermittently through said head.
  • the tubular elastic means are placed inside a pressure chamber filled with a gas under pressure.
  • This device of the prior art however has the disadvantage of requiring the implementation of a pressurized chamber, which is relatively complicated and expensive to manufacture.
  • the present invention aims to overcome this drawback.
  • This object of the invention is achieved with a portable device for cleaning the teeth, of the type comprising a domestic water inlet pipe, an injection head, and elastic tubular means interposed between said pipe and said head for drawing said water intermittently through said head, remarkable in that said elastic tubular means comprise a nozzle having, in the absence of any external constraint, converging and diverging parts connected together by a throttled part. Thanks to these characteristics, the constriction of the elastic tubular means can be obtained without it being necessary to apply any external pressure to them, which makes it possible to overcome the pressurized chamber of the prior art: this is obtained a simple and inexpensive device to manufacture. According to other characteristics of the device according to the invention: - stiffeners are arranged at the periphery of the divergent part of said nozzle, - said strangled part is flattened,
  • said constricted part comprises two internal walls provided with beads arranged in a staggered arrangement, which form a seal when brought into contact, - said constricted part comprises lateral gutters forming hinges,
  • said injection head is mounted on a body allowing the gripping of said device, and said nozzle is mounted inside said body,
  • said injection head comprises an enlarged part, for example conical, capable of receiving a removable basket which may contain a product in solid form and soluble in water,
  • - Said device comprises a nozzle intended to be fixed on said domestic water inlet, this nozzle comprising on the one hand a calibrated opening ensuring permanent fluid communication between said domestic water inlet and said pipe, and on the other hand selective sealing means located downstream of said calibrated opening,
  • said device comprises a volumetric chamber with accordion walls, interposed between said calibrated opening and said pipe,
  • said device comprises means for fixing said pipe along said domestic water inlet,
  • FIG. 1 is an overall view partially in section of the device according to the invention when it is connected to a domestic water supply
  • FIG. 2 is a view in longitudinal section of part of a pipe of the device in FIG. 1,
  • FIG. 3 is a perspective view of the nozzle of the device according to the invention
  • - Figure 4 is a sectional view of this nozzle according to the plane P4 of Figure 3
  • FIG. 5 and 6 are sectional views of this nozzle according to the plane P5 of Figure 3 respectively when it is closed and when it is opening.
  • the device according to the invention comprises an injection head 1 preferably removable and interchangeable, mounted on a body 3 for example by screwing.
  • This injection head 1 and this body 3 can for example be made of metal or plastic
  • At least one flexible pipe 5 defining for example turns 7 is connected to the body 3 and is adapted to be connected to a domestic water supply 9
  • the pipe 5 may have accordion walls
  • the domestic water supply 9 can typically include a gooseneck tube 11 such as can be found on bathroom sinks. Inside the body 3 is a nozzle 13, which can be see in detail in figure 3
  • This nozzle 13 comprises a converging part 15 and a diverging part 17, the length L1 of the converging part is preferably substantially twice greater than the length L2 of the diverging part.
  • Stiffeners 19a, 19b are preferably arranged at the periphery of the divergent part 17 of the nozzle 13, the number of these stiffeners being able to vary according to the models of nozzle
  • the converging 15 and diverging 17 parts are connected together by a throttled part 21 It is necessary to understand the nozzle 13 has a strangled shape in the absence of any external constraint
  • the constricted part 21 is flattened and comprises two walls 23a, 23b provided with beads 25a, 25b arranged substantially in staggered rows.
  • the constricted part 21 could include two winding walls substantially defining a baffle
  • the throttled part 21 preferably comprises lateral gutters 27a, 27b forming hinges
  • the converging 15 and diverging 17 parts, the stiffeners 19a, 19b, the constricted part 21 and the beads 25a, 25b are formed in an elastic material such as synthetic rubber, and they preferably form a single piece.
  • the nozzle assembly 13 is fixed inside the body 3 by watertight means which may notably include seals 28a, 28b. In a more basic variant, these seals can be replaced by bonding. of the nozzle 13 inside the body 3
  • the device according to the invention may comprise a nozzle 29 intended to be fixed on the tube 11, this nozzle comprising on the one hand a calibrated opening 31 ensuring permanent fluid communication between the water inlet 9 and the pipe 5, and on the other hand selective shutter means such as a tap 33 located downstream of the calibrated opening 31.
  • a universal adapter and fixing kit is also provided (not shown) in order to be able to connect the pipe 5 or, if necessary, the end piece 29 to tubes 11 of different shapes and diameters.
  • the device according to the invention also comprises attachments or “clips” 35a, 35b for fixing the pipe 5 along the tube 11.
  • the device according to the invention comprises a volumetric chamber 37 with accordion walls, which can be either interposed between the calibrated opening 31 and the pipe 5, as shown in FIG. 1, or incorporated into the body 3 (not shown). It is also possible to provide that the injection head 1 comprises an enlarged part, for example conical 39 capable of receiving a removable basket 40 which may contain a product in solid form and soluble in water.
  • Such a product can for example consist of pellets or granules capable of releasing, when they dissolve, anti-bacterial, odorous or other active ingredients.
  • the flexible pipe 5 is connected to the water inlet tube 11, if necessary via the end piece 29 (see FIG. 1).
  • the installation of the fasteners 35a, 35b makes it possible to prevent the flexible pipe 5 from hanging under the tube 11 and causing discomfort.
  • the water inlet 9 is then opened so that water arrives under pressure inside the tube 11.
  • the constriction formed by the part 21 has the effect of accelerating the water in this part, and therefore of reducing the static pressure which it exerts on the walls 23a, 23b. Given the elasticity of the nozzle 13, this reduction in pressure has the effect of re-closing the throttled part 21.
  • the converging part 15 then starts to swell again under the effect of the pressure exerted by the water, and so on: as can be understood, an opening / closing cycle of the constricted part 21 is established, which makes it possible to obtain water in the form drawn from the outlet of the nozzle 13, and therefore from the outlet of the injection head 1 (see FIG. 1).
  • the presence of the beads 23a, 23b in the throttled part 21 makes it possible to obtain a quasi-tight closure of this part, which makes it possible to clearly interrupt the water jet at each intermittence at the outlet of the injection head 1 , and thus obtain a higher cleaning power: the shock effect produced by the inertia of the water is used.
  • the small water hammer due to the closing of the throttled part 21 can be advantageously absorbed by the use of a pipe 5 in accordion (see FIG. 2), and / or of the volumetric chamber 37 (see FIG. 1 ): it is in fact possible to contain the increase in volume linked to the drop in water flow.
  • lateral gutters 27a, 27b play the role of hinges making it possible to avoid premature fatigue of the material forming the nozzle 13 in the region of the throttled part 21, and therefore to avoid the risks of leakage liable to render it unusable the device according to the invention.
  • the presence of the calibrated hole 31 makes it possible to limit the flow of water circulating in the device, and thus to avoid possible overpressures which can lead to deterioration of the pipe 5 and, if necessary, of the volumetric chamber 37. It will be noted that the frequency of pulsation of the water jet at the outlet of the injection head 1, and therefore its strength, will depend on the degree of opening of the water inlet 9.
  • the optional presence of the removable basket 40 makes it possible to produce a dental jet containing the active principles of the products (pellets or granules) located in this basket, thereby improving the quality of the cleaning of the teeth.
  • the tap 33 is opened: in this way it is possible to use the inlet of water 9 for example for washing hands without the need to disconnect the device according to the invention.
  • the nozzle 13 makes it possible to overcome the pressurization means of the prior art, and thus to obtain a simple and inexpensive device to manufacture.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)

Abstract

The invention concerns a portable device for cleaning teeth, comprising a conduit supplying domestic water (5), an injection head (1), and elastic tubular means interposed between said conduit (5) and said head (1) for intermittent pulse injection of said water through said head (1). The invention is characterised in that said elastic tubular means comprise a nozzle (13) having, when no external stress is exerted, convergent (15) and divergent (17) parts interconnected by a constricted part (21).

Description

Dispositif portatif pour nettoyer les dents La présente invention se rapporte à un dispositif portatif pour nettoyer les dents. On connaît du document US 3 883 074 un dispositif portatif pour nettoyer les dents, du type comprenant une conduite d'arrivée d'eau domestique, une tête d'injection, et des moyens tubulaires élastiques interposés entre ladite conduite et ladite tête pour puiser ladite eau de manière intermittente à travers ladite tête. The present invention relates to a portable device for cleaning teeth. Document US 3 883 074 discloses a portable device for cleaning teeth, of the type comprising a domestic water supply pipe, an injection head, and elastic tubular means interposed between said pipe and said head for drawing said water intermittently through said head.
Dans ce dispositif de la technique antérieure, les moyens élastiques tubulaires sont placés à l'intérieur d'une chambre de pression remplie d'un gaz sous pression.In this device of the prior art, the tubular elastic means are placed inside a pressure chamber filled with a gas under pressure.
En l'absence de circulation d'eau à l'intérieur des moyens élastiques tubulaires, ces derniers sont maintenus étranglés sous l'effet de la pression du gaz présent dans la chambre.In the absence of water circulation inside the elastic tubular means, the latter are kept throttled under the effect of the pressure of the gas present in the chamber.
Lorsque de l'eau circule à l'intérieur des moyens élastiques tubulaires, ils s'ouvrent sous l'effet de la pression exercée par cette eau.When water circulates inside the elastic tubular means, they open under the effect of the pressure exerted by this water.
On obtient ainsi un dispositif oscillant permettant, finalement, d'obtenir un jet puisé.An oscillating device is thus obtained allowing, finally, to obtain a pulsed jet.
Un tel dispositif, connu couramment sous le terme de « jet dentaire », permet de nettoyer les dents de manière beaucoup plus efficace qu'une simple brosse à dents, particulièrement dans les interstices, là où les brins des brosses ne peuvent aller.Such a device, commonly known by the term "dental jet", makes it possible to clean the teeth much more effectively than a simple toothbrush, particularly in the interstices, where the bristles of the brushes cannot go.
Ce dispositif de la technique antérieure présente toutefois l'inconvénient de nécessiter la mise en œuvre d'une chambre pressurisée, ce qui relativement compliqué et coûteux à fabriquer.This device of the prior art however has the disadvantage of requiring the implementation of a pressurized chamber, which is relatively complicated and expensive to manufacture.
La présente invention a pour but de s'affranchir de cet inconvénient. On atteint ce but de l'invention avec un dispositif portatif pour nettoyer les dents, du type comprenant une conduite d'arrivée d'eau domestique, une tête d'injection, et des moyens tubulaires élastiques interposés entre ladite conduite et ladite tête pour puiser ladite eau de manière intermittente à travers ladite tête, remarquable en ce que lesdits moyens tubulaires élastiques comprennent une tuyère présentant, en l'absence de toute contrainte extérieure, des parties convergente et divergente reliées entre elles par une partie étranglée. Grâce à ces caractéristiques, l'étranglement des moyens tubulaires élastiques peut être obtenu sans qu'il soit nécessaire de leur appliquer une quelconque pression extérieure, ce qui permet de s'affranchir de la chambre pressurisée de la technique antérieure : on obtient de la sorte un dispositif simple et peu coûteux à fabriquer. Suivant d'autres caractéristiques du dispositif selon l'invention : - des raidisseurs sont disposés à la périphérie de la partie divergente de ladite tuyère, - ladite partie étranglée est aplatie,The present invention aims to overcome this drawback. This object of the invention is achieved with a portable device for cleaning the teeth, of the type comprising a domestic water inlet pipe, an injection head, and elastic tubular means interposed between said pipe and said head for drawing said water intermittently through said head, remarkable in that said elastic tubular means comprise a nozzle having, in the absence of any external constraint, converging and diverging parts connected together by a throttled part. Thanks to these characteristics, the constriction of the elastic tubular means can be obtained without it being necessary to apply any external pressure to them, which makes it possible to overcome the pressurized chamber of the prior art: this is obtained a simple and inexpensive device to manufacture. According to other characteristics of the device according to the invention: - stiffeners are arranged at the periphery of the divergent part of said nozzle, - said strangled part is flattened,
- ladite partie étranglée comprend deux parois intérieures munies de bourrelets disposés sensiblement en quinconce, qui forment étanchéité lorsqu'ils sont mis en contact, - ladite partie étranglée comprend des gouttières latérales formant charnières,- said constricted part comprises two internal walls provided with beads arranged in a staggered arrangement, which form a seal when brought into contact, - said constricted part comprises lateral gutters forming hinges,
- ladite tête d'injection est montée sur un corps permettant la préhension dudit dispositif, et ladite tuyère est montée à l'intérieur dudit corps,said injection head is mounted on a body allowing the gripping of said device, and said nozzle is mounted inside said body,
- ladite tête d'injection est amovible et interchangeable,- said injection head is removable and interchangeable,
- ladite tête d'injection comporte une partie élargie par exemple conique susceptible de recevoir un panier amovible pouvant contenir un produit sous forme solide et soluble dans l'eau,said injection head comprises an enlarged part, for example conical, capable of receiving a removable basket which may contain a product in solid form and soluble in water,
- ledit dispositif comprend un embout destiné à être fixé sur ladite arrivée d'eau domestique, cet embout comprenant d'une part une ouverture calibrée assurant une communication de fluide permanente entre ladite arrivée d'eau domestique et ladite conduite, et d'autre part des moyens d'obturation sélective situés en aval de ladite ouverture calibrée,- Said device comprises a nozzle intended to be fixed on said domestic water inlet, this nozzle comprising on the one hand a calibrated opening ensuring permanent fluid communication between said domestic water inlet and said pipe, and on the other hand selective sealing means located downstream of said calibrated opening,
- ledit dispositif comprend une chambre volumétrique à parois en accordéon, interposée entre ladite ouverture calibrée et ladite conduite,said device comprises a volumetric chamber with accordion walls, interposed between said calibrated opening and said pipe,
- ledit dispositif comprend des moyens pour fixer ladite conduite le long de ladite arrivée d'eau domestique,said device comprises means for fixing said pipe along said domestic water inlet,
- ladite conduite comporte des parois en accordéon.- Said pipe has accordion walls.
D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui va suivre et à l'examen du dessin annexé, dans lequel :Other characteristics and advantages of the present invention will appear on reading the description which follows and on examining the appended drawing, in which:
- la figure 1 est une vue d'ensemble partiellement en coupe du dispositif selon l'invention lorsqu'il est relié à une arrivée d'eau domestique,FIG. 1 is an overall view partially in section of the device according to the invention when it is connected to a domestic water supply,
- la figure 2 est une vue en coupe longitudinale d'une partie d'une conduite du dispositif de la figure 1 ,FIG. 2 is a view in longitudinal section of part of a pipe of the device in FIG. 1,
- la figure 3 est une vue en perspective de la tuyère du dispositif selon l'invention, - la figure 4 est une vue en coupe de cette tuyère selon le plan P4 de la figure 3, et- Figure 3 is a perspective view of the nozzle of the device according to the invention, - Figure 4 is a sectional view of this nozzle according to the plane P4 of Figure 3, and
- les figures 5 et 6 sont des vues en coupe de cette tuyère selon le plan P5 de la figure 3 respectivement lorsqu'elle est fermée et lorsqu'elle est en train de s'ouvrir.- Figures 5 and 6 are sectional views of this nozzle according to the plane P5 of Figure 3 respectively when it is closed and when it is opening.
On se reporte à présent à la figure 1 , sur laquelle on voit que le dispositif selon l'invention comprend une tête d'injection 1 de préférence amovible et interchangeable, montée sur un corps 3 par exemple par vissage. Cette tête d'injection 1 et ce corps 3 peuvent être par exemple en métal ou en plastiqueReferring now to Figure 1, on which we see that the device according to the invention comprises an injection head 1 preferably removable and interchangeable, mounted on a body 3 for example by screwing. This injection head 1 and this body 3 can for example be made of metal or plastic
Au moins une conduite souple 5 définissant par exemple des spires 7 se raccorde sur le corps 3 et est adaptée pour être branchée sur une arrivée d'eau domestique 9At least one flexible pipe 5 defining for example turns 7 is connected to the body 3 and is adapted to be connected to a domestic water supply 9
En variante représentée a la figure 2, la conduite 5 peut comporter des parois en accordéonAs a variant shown in FIG. 2, the pipe 5 may have accordion walls
L'arrivée d'eau domestique 9 peut typiquement comprendre un tube en col de cygne 11 tel qu'on peut en trouver sur les lavabos des salles de bains A l'intérieur du corps 3 se trouve une tuyère 13, que l'on peut voir en détail sur la figure 3The domestic water supply 9 can typically include a gooseneck tube 11 such as can be found on bathroom sinks. Inside the body 3 is a nozzle 13, which can be see in detail in figure 3
Cette tuyère 13 comprend une partie convergente 15 et une partie divergente 17, la longueur L1 de la partie convergente étant de préférence sensiblement deux fois supérieure à la longueur L2 de la partie divergente Des raidisseurs 19a, 19b sont de préférence disposés à la périphérie de la partie divergente 17 de la tuyère 13, le nombre de ces raidisseurs pouvant varier selon les modèles de tuyèreThis nozzle 13 comprises a converging part 15 and a diverging part 17, the length L1 of the converging part is preferably substantially twice greater than the length L2 of the diverging part. Stiffeners 19a, 19b are preferably arranged at the periphery of the divergent part 17 of the nozzle 13, the number of these stiffeners being able to vary according to the models of nozzle
Les parties convergente 15 et divergente 17 sont reliées entre elles par une partie étranglée 21 II faut comprendre la tuyère 13 présente une forme étranglée en l'absence de toute contrainte extérieureThe converging 15 and diverging 17 parts are connected together by a throttled part 21 It is necessary to understand the nozzle 13 has a strangled shape in the absence of any external constraint
De préférence, et comme cela est visible sur les figures 4 à 6, la partie étranglée 21 est aplatie et comprend deux parois 23a, 23b munies de bourrelets 25a, 25b disposés sensiblement en quinconce Selon une variante possible mais non représentée, la partie étranglée 21 pourrait comprendre deux parois sinueuses définissant sensiblement une chicanePreferably, and as can be seen in FIGS. 4 to 6, the constricted part 21 is flattened and comprises two walls 23a, 23b provided with beads 25a, 25b arranged substantially in staggered rows. According to a possible variant but not shown, the constricted part 21 could include two winding walls substantially defining a baffle
Comme cela est particulièrement visible sur les figures 3 et 4, la partie étranglée 21 comprend de préférence des gouttières latérales 27a, 27b formant charnièresAs is particularly visible in Figures 3 and 4, the throttled part 21 preferably comprises lateral gutters 27a, 27b forming hinges
Les parties convergente 15 et divergente 17, les raidisseurs 19a, 19b, la partie étranglée 21 et les bourrelets 25a, 25b sont formés dans un matéπau élastique tel que le caoutchouc synthétique, et ils forment de préférence une seule et même pièceThe converging 15 and diverging 17 parts, the stiffeners 19a, 19b, the constricted part 21 and the beads 25a, 25b are formed in an elastic material such as synthetic rubber, and they preferably form a single piece.
Comme cela est visible sur la figure 1 , l'ensemble de tuyère 13 est fixé à l'intérieur du corps 3 par des moyens étanches pouvant comprendre notamment des joints 28a, 28b Dans une variante plus sommaire, ces joints peuvent être remplacés par le collage de la tuyère 13 a l'intérieur du corps 3 Le dispositif selon l'invention peut comprendre un embout 29 destiné à être fixé sur le tube 11 , cet embout comprenant d'une part une ouverture calibrée 31 assurant une communication de fluide permanente entre l'arrivée d'eau 9 et la conduite 5, et d'autre part des moyens d'obturation sélective tels qu'un robinet 33 situé en aval de l'ouverture calibrée 31.As can be seen in FIG. 1, the nozzle assembly 13 is fixed inside the body 3 by watertight means which may notably include seals 28a, 28b. In a more basic variant, these seals can be replaced by bonding. of the nozzle 13 inside the body 3 The device according to the invention may comprise a nozzle 29 intended to be fixed on the tube 11, this nozzle comprising on the one hand a calibrated opening 31 ensuring permanent fluid communication between the water inlet 9 and the pipe 5, and on the other hand selective shutter means such as a tap 33 located downstream of the calibrated opening 31.
On prévoit en outre un kit d'adaptation et de fixation universel (non représenté) pour pouvoir raccorder la conduite 5 ou, le cas échéant, l'embout 29 à des tubes 11 de formes et de diamètres différents.A universal adapter and fixing kit is also provided (not shown) in order to be able to connect the pipe 5 or, if necessary, the end piece 29 to tubes 11 of different shapes and diameters.
De manière préférée, le dispositif selon l'invention comprend également des attaches ou « clips » 35a, 35b pour fixer la conduite 5 le long du tube 11.Preferably, the device according to the invention also comprises attachments or “clips” 35a, 35b for fixing the pipe 5 along the tube 11.
On peut également prévoir que le dispositif selon l'invention comprenne une chambre volumétrique 37 à parois en accordéon, laquelle peut être soit interposée entre l'ouverture calibrée 31 et la conduite 5, comme cela est représenté sur la figure 1 , soit incorporée au corps 3 (non représenté). On peut également prévoir que la tête d'injection 1 comporte une partie élargie par exemple conique 39 susceptible de recevoir un panier amovible 40 pouvant contenir un produit sous forme solide et soluble dans l'eau.It is also possible to provide that the device according to the invention comprises a volumetric chamber 37 with accordion walls, which can be either interposed between the calibrated opening 31 and the pipe 5, as shown in FIG. 1, or incorporated into the body 3 (not shown). It is also possible to provide that the injection head 1 comprises an enlarged part, for example conical 39 capable of receiving a removable basket 40 which may contain a product in solid form and soluble in water.
Un tel produit peut par exemple consister en pastilles ou granulés susceptibles de libérer, lorsqu'ils se dissolvent, des principes actifs anti-bactériens, odorants ou autres.Such a product can for example consist of pellets or granules capable of releasing, when they dissolve, anti-bacterial, odorous or other active ingredients.
Le mode d'utilisation et les avantages du dispositif selon l'invention résultent directement de la description qui précède.The mode of use and the advantages of the device according to the invention result directly from the above description.
Lorsqu'on veut faire fonctionner le dispositif selon l'invention, on branche la conduite souple 5 sur le tube d'arrivée d'eau 11 , le cas échéant par l'intermédiaire de l'embout 29 (voir figure 1).When the device according to the invention is to be operated, the flexible pipe 5 is connected to the water inlet tube 11, if necessary via the end piece 29 (see FIG. 1).
On utilise si nécessaire le kit d'adaptation et de fixation universel pour pouvoir effectuer le branchement.If necessary, use the universal adapter and fixing kit to be able to make the connection.
La mise en place des attaches 35a, 35b permet d'éviter que la conduite souple 5 ne pende sous le tube 11 et ne gêne. On ouvre ensuite l'arrivée d'eau 9 de manière que de l'eau arrive sous pression à l'intérieur du tube 11.The installation of the fasteners 35a, 35b makes it possible to prevent the flexible pipe 5 from hanging under the tube 11 and causing discomfort. The water inlet 9 is then opened so that water arrives under pressure inside the tube 11.
Lorsque le robinet 33 est fermé, cette eau sous pression se dirige à l'intérieur du corps 3 et de la tuyère 13 via la conduite souple 5, comme cela est indiqué par la flèche F représentée sur les figures 1 , 5 et 6. Sous l'effet de la pression statique exercée par l'eau, la partie convergente 15 de la tuyère 13 gonfle, comme cela est visible sur la figure 5, jusqu'au moment où les bourrelets 25a s'écartent des bourrelets 25b comme cela est visible sur la figure 6, permettant alors la circulation de l'eau de la partie convergente 15 vers la partie divergente 17.When the tap 33 is closed, this pressurized water is directed inside the body 3 and the nozzle 13 via the flexible pipe 5, as indicated by the arrow F represented in FIGS. 1, 5 and 6. Under the effect of the static pressure exerted by the water, the converging part 15 of the nozzle 13 swells, as can be seen in FIG. 5, until the beads 25a move away from the beads 25b as can be seen in figure 6, then allowing the circulation of water from the converging part 15 towards the diverging part 17.
L'étranglement formé par la partie 21 a pour effet d'accélérer l'eau dans cette partie, et donc de diminuer la pression statique qu'elle exerce sur les parois 23a, 23b. Etant donnée l'élasticité de la tuyère 13, cette diminution de pression a pour effet d'entraîner la re-fermeture de la partie étranglée 21.The constriction formed by the part 21 has the effect of accelerating the water in this part, and therefore of reducing the static pressure which it exerts on the walls 23a, 23b. Given the elasticity of the nozzle 13, this reduction in pressure has the effect of re-closing the throttled part 21.
La présence des raidisseurs 19a, 19b permet de rendre cette fermeture rapide et brutale.The presence of the stiffeners 19a, 19b makes this closure quick and brutal.
La partie convergente 15 se remet alors à gonfler sous l'effet de la pression exercée par l'eau, et ainsi de suite : comme on peut le comprendre, un cycle d'ouverture/fermeture de la partie étranglée 21 s'instaure, lequel permet d'obtenir de l'eau sous forme puisée à la sortie de la tuyère 13, et donc à la sortie de la tête d'injection 1 (voir figure 1).The converging part 15 then starts to swell again under the effect of the pressure exerted by the water, and so on: as can be understood, an opening / closing cycle of the constricted part 21 is established, which makes it possible to obtain water in the form drawn from the outlet of the nozzle 13, and therefore from the outlet of the injection head 1 (see FIG. 1).
La présence des bourrelets 23a, 23b dans la partie étranglée 21 permet d'obtenir une fermeture quasi-étanche de cette partie, ce qui permet d'interrompre nettement le jet d'eau à chaque intermittence à la sortie de la tête d'injection 1 , et ainsi d'obtenir une puissance de nettoyage plus élevée : on utilise l'effet de choc produit par l'inertie de l'eau.The presence of the beads 23a, 23b in the throttled part 21 makes it possible to obtain a quasi-tight closure of this part, which makes it possible to clearly interrupt the water jet at each intermittence at the outlet of the injection head 1 , and thus obtain a higher cleaning power: the shock effect produced by the inertia of the water is used.
On notera que les petits coups de bélier dus à la fermeture de la partie étranglée 21 peuvent être avantageusement absorbés par l'utilisation d'une conduite 5 en accordéon (voir figure 2), et/ou de la chambre volumétrique 37 (voir figure 1 ) : on peut en effet de la sorte contenir l'augmentation de volume liée à la baisse de débit d'eau.It will be noted that the small water hammer due to the closing of the throttled part 21 can be advantageously absorbed by the use of a pipe 5 in accordion (see FIG. 2), and / or of the volumetric chamber 37 (see FIG. 1 ): it is in fact possible to contain the increase in volume linked to the drop in water flow.
On notera également que les gouttières latérales 27a, 27b jouent le rôle de charnières permettant d'éviter une fatigue prématurée du matériau formant la tuyère 13 dans la zone de la partie étranglée 21 , et donc d'éviter les risques de fuite susceptibles de rendre inutilisable le dispositif selon l'invention.It will also be noted that the lateral gutters 27a, 27b play the role of hinges making it possible to avoid premature fatigue of the material forming the nozzle 13 in the region of the throttled part 21, and therefore to avoid the risks of leakage liable to render it unusable the device according to the invention.
La présence du trou calibré 31 (voir figure 1) permet de limiter le débit d'eau circulant dans le dispositif, et ainsi d'éviter d'éventuelles surpressions pouvant conduire à une détérioration de la conduite 5 et, le cas échéant, de la chambre volumétrique 37. On remarquera que la fréquence de pulsation du jet d'eau à la sortie de la tête d'injection 1 , et donc sa force, dépendra du degré d'ouverture de l'arrivée d'eau 9.The presence of the calibrated hole 31 (see FIG. 1) makes it possible to limit the flow of water circulating in the device, and thus to avoid possible overpressures which can lead to deterioration of the pipe 5 and, if necessary, of the volumetric chamber 37. It will be noted that the frequency of pulsation of the water jet at the outlet of the injection head 1, and therefore its strength, will depend on the degree of opening of the water inlet 9.
On remarquera également que la présence optionnelle du panier amovible 40 permet de produire un jet dentaire contenant les principes actifs des produits (pastilles ou granulés) situés dans ce panier, améliorant de la sorte la qualité du nettoyage des dents.It will also be noted that the optional presence of the removable basket 40 makes it possible to produce a dental jet containing the active principles of the products (pellets or granules) located in this basket, thereby improving the quality of the cleaning of the teeth.
Si l'on veut faire couler l'eau provenant du tube 1 1 sans faire fonctionner le dispositif selon l'invention, on ouvre le robinet 33 : on peut de la sorte utiliser l'arrivée d'eau 9 par exemple pour se laver les mains sans qu'il soit nécessaire de débrancher le dispositif selon l'invention.If one wants to run the water from the tube 1 1 without operating the device according to the invention, the tap 33 is opened: in this way it is possible to use the inlet of water 9 for example for washing hands without the need to disconnect the device according to the invention.
Lorsqu'on souhaite emmener le dispositif selon l'invention par exemple pour effectuer un voyage, il suffit de le débrancher du tube 11 et de le ranger par exemple dans une trousse de toilette ou dans un sac de transport spécialement conçu pour le dispositif.When you want to take the device according to the invention for example to make a trip, simply disconnect it from the tube 11 and store it for example in a toilet bag or in a transport bag specially designed for the device.
Comme c'est l'eau qui fournit toute l'énergie nécessaire au fonctionnement de ce dispositif, il n'est pas nécessaire d'avoir recours à une alimentation sur secteur.As it is water which provides all the energy necessary for the operation of this device, it is not necessary to have recourse to a mains supply.
Comme on peut le comprendre à présent, la tuyère 13 permet de s'affranchir des moyens de pressurisation de la technique antérieure, et ainsi d'obtenir un dispositif simple et peu coûteux à fabriquer.As can now be understood, the nozzle 13 makes it possible to overcome the pressurization means of the prior art, and thus to obtain a simple and inexpensive device to manufacture.
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté, fourni à titre d'exemple illustratif et non limitatif. Of course, the invention is not limited to the embodiment described and shown, provided by way of illustrative and nonlimiting example.

Claims

REVENDICATIONS
1. Dispositif portatif pour nettoyer les dents, du type comprenant une conduite d'arrivée d'eau domestique (5), une tête d'injection (1), et des moyens tubulaires élastiques interposés entre ladite conduite (5) et ladite tête (1) pour puiser ladite eau de manière intermittente à travers ladite tête (1), caractérisé en ce que lesdits moyens tubulaires élastiques comprennent une tuyère (13) présentant, en l'absence de toute contrainte extérieure, des parties convergente (15) et divergente (17) reliées entre elles par une partie étranglée (21).1. Portable device for cleaning teeth, of the type comprising a domestic water supply pipe (5), an injection head (1), and elastic tubular means interposed between said pipe (5) and said head ( 1) for drawing said water intermittently through said head (1), characterized in that said elastic tubular means comprise a nozzle (13) having, in the absence of any external constraint, converging (15) and diverging parts (17) connected together by a throttled part (21).
2. Dispositif selon la revendication 1 , caractérisé en ce que des raidisseurs (19a, 19b) sont disposés à la périphérie de la partie divergente (17) ladite tuyère (13).2. Device according to claim 1, characterized in that stiffeners (19a, 19b) are arranged at the periphery of the divergent part (17) said nozzle (13).
3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que ladite partie étranglée (21) est aplatie.3. Device according to one of claims 1 or 2, characterized in that said constricted part (21) is flattened.
4. Dispositif selon la revendication 3, caractérisé en ce que ladite partie étranglée (21) comprend deux parois (23a, 23b) munies de bourrelets (25a, 25b) disposés sensiblement en quinconce, qui forment étanchéité lorsqu'ils sont mis en contact.4. Device according to claim 3, characterized in that said throttled part (21) comprises two walls (23a, 23b) provided with beads (25a, 25b) arranged substantially in staggered rows, which form a seal when brought into contact.
5. Dispositif selon la revendication 3, caractérisé en ce que ladite partie étranglée (21) comprend deux parois sinueuses définissant sensiblement une chicane.5. Device according to claim 3, characterized in that said choked part (21) comprises two sinuous walls defining substantially a baffle.
6. Dispositif selon l'une quelconque des revendications 3 à 5, caractérisé en ce que ladite partie étranglée (21) comprend des gouttières latérales (27a, 27b) formant charnières.6. Device according to any one of claims 3 to 5, characterized in that said constricted part (21) comprises lateral gutters (27a, 27b) forming hinges.
7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite tête d'injection (1 ) est montée sur un corps (3) permettant la préhension dudit dispositif, et en ce que ladite tuyère (13) est montée à l'intérieur dudit corps (3). 7. Device according to any one of the preceding claims, characterized in that said injection head (1) is mounted on a body (3) allowing the gripping of said device, and in that said nozzle (13) is mounted at the interior of said body (3).
8. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite tête d'injection (1 ) est amovible et interchangeable.8. Device according to any one of the preceding claims, characterized in that said injection head (1) is removable and interchangeable.
9. Dispositif selon la revendication 8, caractérisé en ce que ladite tête d'injection comporte une partie élargie par exemple conique (39) susceptible de recevoir un panier amovible (40) pouvant contenir un produit sous forme solide et soluble dans l'eau. 9. Device according to claim 8, characterized in that said injection head comprises an enlarged part, for example conical (39) capable of receiving a removable basket (40) which can contain a product in solid form and soluble in water.
10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend un embout (29) destiné à être fixé sur ladite arrivée d'eau domestique (9), cet embout comprenant d'une part une ouverture calibrée (31) assurant une communication de fluide permanente entre ladite arrivée d'eau domestique (9) et ladite conduite (5), et d'autre part des moyens d'obturation sélective (33) situés en aval de ladite ouverture calibrée (31). 10. Device according to any one of the preceding claims, characterized in that it comprises a nozzle (29) intended to be fixed on said domestic water supply (9), this nozzle comprising on the one hand a calibrated opening ( 31) ensuring permanent fluid communication between said domestic water supply (9) and said pipe (5), and on the other hand selective sealing means (33) located downstream of said calibrated opening (31).
11. Dispositif selon la revendication 10, caractérisé en ce qu'il comprend une chambre volumétrique (37) à parois en accordéon, interposée entre ladite ouverture calibrée (31) et ladite conduite (5).11. Device according to claim 10, characterized in that it comprises a volumetric chamber (37) with accordion walls, interposed between said calibrated opening (31) and said pipe (5).
12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend des moyens (35a, 35b) pour fixer ladite conduite (5) le long de ladite arrivée d'eau domestique (9).12. Device according to any one of the preceding claims, characterized in that it comprises means (35a, 35b) for fixing said pipe (5) along said domestic water inlet (9).
13. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite conduite (5) comporte des parois en accordéon. 13. Device according to any one of the preceding claims, characterized in that said pipe (5) has accordion walls.
PCT/FR2001/004113 2000-12-22 2001-12-20 Portable device for cleaning teeth WO2002051331A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR00/16869 2000-12-22
FR0016869A FR2818531B1 (en) 2000-12-22 2000-12-22 PORTABLE TOOTH CLEANER

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WO2002051331A1 true WO2002051331A1 (en) 2002-07-04

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Application Number Title Priority Date Filing Date
PCT/FR2001/004113 WO2002051331A1 (en) 2000-12-22 2001-12-20 Portable device for cleaning teeth

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WO (1) WO2002051331A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102111A (en) * 1934-08-27 1937-12-14 Cleveland Henry Syringe for cold-hot water supply
US3509874A (en) * 1967-09-27 1970-05-05 Theodore Stillman Dental cleansing and massaging apparatus
US3883074A (en) 1972-02-18 1975-05-13 John W Lambert Hydraulic oscillator and systems utilizing the same
US4284078A (en) * 1980-03-17 1981-08-18 Pace Paul D Four in one water hygiene dispenser
EP0086987A1 (en) * 1982-02-03 1983-08-31 Paul Hirsch Douche for oral hygiene
US4742593A (en) * 1985-09-12 1988-05-10 Coxwold (Proprietary) Ltd. Valve member for water interruption pool cleaner
DE19654098A1 (en) * 1996-12-23 1998-06-25 Braun Ag Dental care device for mouth toilet pressure-wash and care and cleaning of teeth and gums

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2102111A (en) * 1934-08-27 1937-12-14 Cleveland Henry Syringe for cold-hot water supply
US3509874A (en) * 1967-09-27 1970-05-05 Theodore Stillman Dental cleansing and massaging apparatus
US3883074A (en) 1972-02-18 1975-05-13 John W Lambert Hydraulic oscillator and systems utilizing the same
US4284078A (en) * 1980-03-17 1981-08-18 Pace Paul D Four in one water hygiene dispenser
EP0086987A1 (en) * 1982-02-03 1983-08-31 Paul Hirsch Douche for oral hygiene
US4742593A (en) * 1985-09-12 1988-05-10 Coxwold (Proprietary) Ltd. Valve member for water interruption pool cleaner
DE19654098A1 (en) * 1996-12-23 1998-06-25 Braun Ag Dental care device for mouth toilet pressure-wash and care and cleaning of teeth and gums

Also Published As

Publication number Publication date
FR2818531B1 (en) 2003-07-04
FR2818531A1 (en) 2002-06-28

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