[go: up one dir, main page]

WO1993002591A1 - Brosse a dents a supports de poils montes elastiques - Google Patents

Brosse a dents a supports de poils montes elastiques Download PDF

Info

Publication number
WO1993002591A1
WO1993002591A1 PCT/IT1992/000089 IT9200089W WO9302591A1 WO 1993002591 A1 WO1993002591 A1 WO 1993002591A1 IT 9200089 W IT9200089 W IT 9200089W WO 9302591 A1 WO9302591 A1 WO 9302591A1
Authority
WO
WIPO (PCT)
Prior art keywords
bristles
tufts
capsule
toothbrush
head
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.)
Ceased
Application number
PCT/IT1992/000089
Other languages
English (en)
Inventor
Andrea Conti
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 WO1993002591A1 publication Critical patent/WO1993002591A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • 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

Definitions

  • the present invention relates to a toothbrush having retactable and absorbed bristles.
  • the head carrying the bristles has a base which clasps bristles, individually or in tufts, in such a way that the bristles- themselves remain either simply bound or housed and held at one end, while at the other end, in order to carry out the designated function, they are free and co-operative.
  • the bristle must necessarily enter in contact with the gums, this is because the teeth are encapsuled in and surrounded by the gum, in a manner such that, when brushing the teeth, interferring with the gums can not be avoided. If we observe how the cleansing action takes place while contemporarily noticing the state of the art toothbrushes, we see that the rubbing and cleansing action is determined by the pressure with which the bristles come in contact with the teeth: that is, the more the user wishes to clean the teeth, the more pressure he applies through the handle or the grip of the toothbrush, said pressure is discharged upon the head and consequently upon the bristles.
  • a first point to take note of is that the bristles are naturally and in a variable measure, elastic; it is to this very elasticity, to put it in an elementary and primitive way, that is demanded the action of adaptation of the bristles to the surface of the teeth. That is, the degree of elasticity of the bristles reduces the pressure and the pushing of the head for the action of cleansing, upon the irregular surface of the teeth.
  • the bristles are housed and bound on the head, in tufts, therefore the elasticity of each single bristle co-operates with a movement in different areas of retraction and relaxation, that is of variation of the cleansing pressure.
  • a group of patents refers to the characteristic of deformability that the elastic membrane has because the membrane itself is in turn placed upon means which limit its possibility of deformation (for example United States patents US 2.882.554 HADIDIAN and US 3.082.457 LUCIBELLO); a second group (for example the British patent- GB 1.221.793 and French patent FR 8.405.896 TARAVEL), is based upon the presence, also on the housing and binding base of the bristles or tufts of bristles, of a elastic organ which carries out the action by virtue of its intrinsic characteristics, that is by a degree of deformability of the material of which said membrane is made of, and which gives place to an excursion of the bristles contained within a defined limit.
  • the present invention is based upon from a completely different assumption: the action of retraction of the bristles must take place in limited groups of bristles, following a discontinuous line of deformability, and independently for each tuft, assuring, when providing for the mounting in tufts, a non-interference in the action of each tuft and a degree of operativity of the tuft directly derived from the surface in which each single tuft operates, since each tuft has individual means of deformation, capable of comfortably absorbing the bending and retraction desirable for the bristles.
  • the purpose of the present invention is to overcome the above described inconviniences and to obtain the above proposed advantages, through a toothbrush which groups the bristles in tufts and allows the action of the tufts to take place within a range of deformability given only by the shape of the area in which the head of the toothbrush operates.
  • this invention proposes a toothbrush provided with a handle or grip, a rigid brushing head, a number of bristles, of which one end is bound and another is free for carrying out the action of rubbing and cleansing of a highly variable and complex surface such as that of the teeth, characterized by comprising: a head, presenting a blind face having a function of supporting base and a superior body connected to said base by a perimetral relief, such as to form an elongated box-like element, in which are provided a number of bores which pass through the superior face of the block consisting of the head along an axis orthogonal to the base and within said bores a plurality of tufts of bristles in a number exactly identical to that of the bores provided, are housed inside element forming the brushing head; the tufts of bristles passing through the superior face of the head, in order to slide up and down, are bound at the base in a capsule and thus prevented from exiting definitively along the orthogonally running axis with respect
  • - fig. 2 shows a cross section of the head of a toothbrush according to a perpendicular plane to the first, indicated by A A in fig. 1;
  • fig. 3 shows a plan view of the head of a toothbrush according to the present invention;
  • fig. 4 shows a partial section view of a part of a detail of figure 1, showing the tufts of bristles with the means which allow the absortion of impact;
  • fig. 5 shows an axonometric view of a very enlarged part of a capsule with helicoidal elements constituting the impact absorbing means;
  • - fig. 6 shows a section view of a very enlarged part of a tuft of bristles with its corresponding impact absorbing means;
  • FIG. 7 shows an axonometric view of an enlarged part of the capsule containing tufts of bristles
  • fig. 8 shows a variation of embodiment of a toothbrush according to the present invention and shows a partial detailed section view of the head of a toothbrush showing the tufts of bristles with alternate means with respect to fig. 4, which allow the absorption of impact, based upon the same informing principles of the main embodiment.
  • the number 1 indicates the head of a toothbrush, integral with a handle for gripping 11 and presenting a blind face 2 as a supporting base and a superior body 3 which vertically surrounding the peripheral edges 13 and 23 forms an elongated box-like element.
  • the supporting base 2 within a perimetral relief 21, contains element 3, 13, 23, which having a reversed U-shape constitutes the head of the toothbrush.
  • a number of bores 6, for example about thirty, of a diameter large enough to allow profitably the passage of the tufts of bristles 9, present in an number equal to that of the bores 6.
  • the tufts of bristles 9, with respect to the bores 6, are by no means bound, and therefore can not only slide along them following the axis indicated with 14 and coincidental with the axis of the bores, but can carry out rotatory movements both in directions indicated by 16 and by 18, that is from right to left and from left to right.
  • the vertical sliding described following axis 14 takes place in conjunction with rotational movements 16 and 18.
  • the tufts of bristles 9, have a free ending 10 and a bound ending 20; ending 10 represents the zone through which the bristles carry out the function of rubbing and cleansing the teeth; it also represents the point upon which is applied the force derived from the pressure with which, through the handle 11 the head is pressed against the teeth; the bound ending 20, is the zone where the tufts of bristles discharge the vertical force recieved along axis 14 and whereupon, when are not considered appropriate means for absorbing the impact of said force, that is that the base should have the sole function of containing the tufts - the bristles would curve themselves and deform diameter 15, until one tuft interferes with the other.
  • the tufts 9 are housed and bound in a cilindrical capsule 30 having an H-section, subdivided internally by a septum 31 into two hollow portions 32 and 34 each having an open entrance, the superior portion 32 towards the top 37 and the inferior portion 34 towards the bottom 37a.
  • Said cilindrical capsule 30 is provided in its inferior part with an anular protrusion 40, of a diameter larger than the capsule itself, placed at the base 33, from which depart ribbings in relief 38 and 38a which rising vertically along the entire height of the capsule from 33 to 35, have a helicoidal shape.
  • the tufts 9, gathered into a total diameter 17 corresponding to diameter 37 of capusle 30, are bound, by bind soldered or glued toghether, up to a height approximately corresponding to the hollow portion 32 itself, as delimited within capsule 30 by septum 31.
  • the hollow inferior part 34 of capsule 30, houses and binds the head of the impact absorbing means for the vertically sliding action of the tufts 9, said tufts being placed beggining at the intrados defined by septum 31 and with their base housed and bound in a groove 29 made in the extrados of blind face 2, consisting of the base of the head.
  • the impact absorbing means for the sliding movement of the tufts of bristles 9, contained by capsules 30, are consisting by protruding helicoidal elements 42, deriving as a whole piece from a capsule of defor able and reversible material, for example synthetic or natural elastomere, which through ribbings 43, 45, 47, 49, carry out the function of a sprining action, that is, they admit the dowmcoming, particularly towards blind face 2 of the base, of the tufts of bristles 9 through bores 6 when the tufts meet with a rise in the surface of the teeth during brushing and send the tufts of bristles 9 back up through the bores 6, when the they meet with a subsidence on the brushed surface.
  • the caspule having elicoidal elements 42 has a square base 44, housed in a corresponding groove 29, and a cirular head 46, housed in the inferior concave portion 34 of the tuft- carrying capsule 30.
  • hollow portion 34 of capsule 30 carrying tufts of bristles 9, houses an impact recieiving helicoidal spring, bound at its head 146 in the intrados of the inferior hollow position 34 of capsule 30, and at the base 144 in groove 29 of the blind face 2 of the head of the toothbrush.
  • the capsules 30, In cylinders 24, which are formed in the head 1, through bores 6, the capsules 30, having a ring at the base 33 of the same diameter as the bores, descend and rotate from right to left forced into rotatory movement 16 by ribbings 38 and when returning the same ribbings constrain the said capsules into a rotatory movement from left to right in rotatory direction 18.
  • helicoidal elements 42 consisting of the impact absorbing mean are in a non-active position; when capsules 30 and tufts 9 rotate and descend into head 1, likewise the helicoidal elements rotate in the same direction 16 and are compressed, charging themselves with a springing action 25a; when capsules 30 and tufts 9 are in the rising phase, helicoidal elements 42, discharge their springing effect pushing the capsules themselves towards the top and carrying out a rotation in direction 18, likewise with the rotation imposed upon capsules 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)

Abstract

Brosse à dents dans la tête de brossage (1) de laquelle est ménagé un certain nombre de trous (6) traversant la face supérieure (7) du bloc (3) constituant la tête de brossage, selon un axe (14) orthogonal par rapport à la base (2). Des mèches (9) de poils (8) fixées dans des capsules (30) dont le nombre est égal à celui des trous (6) peuvent glisser à la fois vers le haut et vers le bas. Les extrémités inférieures (34) des capsules (30) contenant les mèches (9) de poils possèdent des éléments amortisseurs (42) pour chaque mèche (9) afin d'absorber leur déformation en les faisant sortir ou rentrer de manière appropriée pendant le brossage des dents. Lesdites capsules (30) sont pourvues d'éléments (38) provoquant leur rotation dans le sens des aiguilles d'une montre (16) pendant le glissement vers le bas (16), et leur rotation dans le sens contraire (18) pendant le glissement vers le haut.
PCT/IT1992/000089 1991-07-30 1992-07-30 Brosse a dents a supports de poils montes elastiques Ceased WO1993002591A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI910187A IT1252467B (it) 1991-07-30 1991-07-30 Spazzolino da denti a setole retraibili e ammortizzate
ITFI91A187 1991-07-30

Publications (1)

Publication Number Publication Date
WO1993002591A1 true WO1993002591A1 (fr) 1993-02-18

Family

ID=11349756

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1992/000089 Ceased WO1993002591A1 (fr) 1991-07-30 1992-07-30 Brosse a dents a supports de poils montes elastiques

Country Status (3)

Country Link
AU (1) AU2437992A (fr)
IT (1) IT1252467B (fr)
WO (1) WO1993002591A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308807A (en) * 1995-12-20 1997-07-09 Chung Chin Fu Toothbrush with movable bundles of bristles
WO1998005242A1 (fr) * 1996-08-06 1998-02-12 Mile Erak Dispositif de nettoyage a main pour evacuations
WO2000005991A1 (fr) * 1998-07-30 2000-02-10 Koninklijke Philips Electronics N.V. Seche-cheveux de mise en plis
WO2008034858A1 (fr) * 2006-09-22 2008-03-27 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Nouveau dispositif
US10278485B2 (en) 2016-09-01 2019-05-07 Colgate-Palmolive Company Oral care implement and filament therefor
US10426249B2 (en) 2016-09-01 2019-10-01 Colgate-Palmolive Company Oral care implement
US11484111B2 (en) * 2020-11-30 2022-11-01 Shih Chih Chiang Brush structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386118A (en) * 1966-03-18 1968-06-04 Morioku Shigemi Resilient brush unit
US4694844A (en) * 1984-02-27 1987-09-22 Berl Marta N Toothbrush
WO1992000778A1 (fr) * 1990-07-09 1992-01-23 J.G. Finneran Associates Ressort et recipient contenant un recipient d'insertion interieur sollicite par un ressort

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386118A (en) * 1966-03-18 1968-06-04 Morioku Shigemi Resilient brush unit
US4694844A (en) * 1984-02-27 1987-09-22 Berl Marta N Toothbrush
WO1992000778A1 (fr) * 1990-07-09 1992-01-23 J.G. Finneran Associates Ressort et recipient contenant un recipient d'insertion interieur sollicite par un ressort

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308807A (en) * 1995-12-20 1997-07-09 Chung Chin Fu Toothbrush with movable bundles of bristles
WO1998005242A1 (fr) * 1996-08-06 1998-02-12 Mile Erak Dispositif de nettoyage a main pour evacuations
WO2000005991A1 (fr) * 1998-07-30 2000-02-10 Koninklijke Philips Electronics N.V. Seche-cheveux de mise en plis
WO2008034858A1 (fr) * 2006-09-22 2008-03-27 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Nouveau dispositif
US8516645B2 (en) 2006-09-22 2013-08-27 Glaxosmithkline Consumer Healthcare Gmbh & Co. Device
US10278485B2 (en) 2016-09-01 2019-05-07 Colgate-Palmolive Company Oral care implement and filament therefor
US10426249B2 (en) 2016-09-01 2019-10-01 Colgate-Palmolive Company Oral care implement
US11103056B2 (en) 2016-09-01 2021-08-31 Colgate-Palmolive Company Oral care implement and filament therefor
US11484111B2 (en) * 2020-11-30 2022-11-01 Shih Chih Chiang Brush structure

Also Published As

Publication number Publication date
ITFI910187A1 (it) 1993-01-30
IT1252467B (it) 1995-06-16
AU2437992A (en) 1993-03-02
ITFI910187A0 (it) 1991-07-30

Similar Documents

Publication Publication Date Title
CA1095205A (fr) Brosse a dents
US3229318A (en) Toothbrush
AU642225B2 (en) Plaque removing toothbrush
AU2004249300B2 (en) Toothbrush
JPH05228019A (ja) 歯ブラシヘッド
KR100397825B1 (ko) 칫솔
RU2300298C2 (ru) Зубная щетка (варианты)
US5991959A (en) Toothbrush with flexibly mounted bristles
EP1217917B1 (fr) Brosse a dents avec implantation des poils favorisant le nettoyage
KR101185653B1 (ko) 칫솔
EP1524928B1 (fr) Brosses a dents
KR100581197B1 (ko) 전면 이용 가능한 구강 브러쉬
EP2700331B1 (fr) Accessoire de brosse pour dispositif de traitement de la peau
JP2530471B2 (ja) 歯ブラシ
US5377378A (en) Dry cleaning pad
WO2004028235A3 (fr) Brosse a dents
AU2001261646A1 (en) Toothbrush having an efficacious bristle pattern
WO2001087115A2 (fr) Brosse a dents avec configuration efficace des soies
SE1650037A1 (en) Brush head and method of operating the brush head
WO1993002591A1 (fr) Brosse a dents a supports de poils montes elastiques
CA2392591A1 (fr) Brosse a dents a poils incorpores individuellement
JP2000175743A (ja) ブラシ
RU2013977C1 (ru) Зубная щетка
AU2012202526B2 (en) Toothbrush
JPH0335136Y2 (fr)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR CA JP RU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU MC NL SE

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA