WO2021012073A1 - Amélioration de la tête de brosse d'une brosse à dents et son procédé de formation - Google Patents

Amélioration de la tête de brosse d'une brosse à dents et son procédé de formation Download PDF

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Publication number
WO2021012073A1
WO2021012073A1 PCT/CN2019/096660 CN2019096660W WO2021012073A1 WO 2021012073 A1 WO2021012073 A1 WO 2021012073A1 CN 2019096660 W CN2019096660 W CN 2019096660W WO 2021012073 A1 WO2021012073 A1 WO 2021012073A1
Authority
WO
WIPO (PCT)
Prior art keywords
toothbrush
outer frame
brush head
filling layer
cylinders
Prior art date
Application number
PCT/CN2019/096660
Other languages
English (en)
Chinese (zh)
Inventor
黄守仁
Original Assignee
龙昌兄弟股份有限公司
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 龙昌兄弟股份有限公司 filed Critical 龙昌兄弟股份有限公司
Priority to PCT/CN2019/096660 priority Critical patent/WO2021012073A1/fr
Publication of WO2021012073A1 publication Critical patent/WO2021012073A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • 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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes

Definitions

  • the invention relates to an improvement of a brush head capable of small amplitude deflection with tooth surface and a molding method thereof.
  • the cleaning of the oral cavity is closely related to the health of the human body. People often use tools such as toothbrushes, mouthwashes and dental floss to clean the oral cavity. Among them, because of the convenience of the toothbrush, the basic tool for maintaining oral hygiene, the bristles of the toothbrush can conform to the teeth. Curvature is used to extend into the interdental area between the teeth to clean the residual food in the interdental space, and to avoid the growth of bacteria in the mouth due to food residues, so as to maintain oral hygiene and reduce the occurrence of oral diseases.
  • a general toothbrush includes a brush head and a brush handle connected to the brush head.
  • the brush head and the brush handle provide the user with convenient operation in the oral cavity when brushing their teeth. Therefore, a thin rod is formed between the two.
  • the brush head of the toothbrush in the prior art is still a block made of hard material, and rows of bristles are planted on one side of the block, so that when the user wants to clean the teeth in the oral cavity, The head of the toothbrush is placed in the oral cavity of the human body, and the teeth or interdental gaps are scrubbed and cleaned with protruding bundles of bristles.
  • each bundle of bristles cannot be deflected arbitrarily, so that each bristles can only target the surface of the teeth or the teeth corresponding to the bristles.
  • the tooth surface is cleaned at a certain angle; and the tooth surface is non-flat surface, and the brush head of the toothbrush is also rigid, limited by the bristles cannot fully fit the tooth surface of each tooth, so there will be dead corners of brushing, which is difficult to remove
  • the tooth surface is clean, and it is impossible to clean the narrow gaps between the teeth or remote places. Therefore, users often brush their teeth with greater force to flex the bristles and fully fit the tooth surface.
  • the gums are often damaged. Damage to its health.
  • the main purpose of the present invention is to provide an improvement of a brush head that can match the tooth surface for a small deflection.
  • the toothbrush of the present invention includes a handle and a brush head; wherein the brush head has an outer frame, a plurality of cylinders, and a flexible filling layer.
  • the outer frame is integrally arranged at the end of the handle, and the plurality of cylinders are spaced apart It is configured to form a brush head shape, one end surface of the plurality of cylinders is concavely formed with a fixed groove for implanting bristles, and the flexible filling layer is arranged between the outer frame and the plurality of cylinders.
  • the toothbrush of the present invention When the toothbrush of the present invention is used for users to brush their teeth, because the bristles of the plural barrels can be offset in different directions, the tooth surface and the interdental gaps can be effectively cleaned, and it has a better cleaning effect and is available for use.
  • the operation is convenient for the user, and the flexible filling layer absorbs excessive force applied by the user, thereby avoiding damage to the gums.
  • the contact surface between the outer frame and the flexible filling layer has at least one opposite first interference portion and second interference portion.
  • the first and second interference portions are opposite convex and concave structures.
  • a cover is further provided, and the cover is disposed at the other end of the outer frame relative to the fixing groove.
  • the outer shape of the cover conforms to the outer frame.
  • the cover body and the flexible filling layer are made integrally.
  • the outer frame and the plurality of cylinders are formed of a hard material; the flexible filling layer is formed of a soft material.
  • the present invention further provides a method for forming a toothbrush head, which includes at least the following steps: providing a handle, the end of the handle is integrally provided with an outer frame; providing a plurality of barrels, the plurality of barrels are arranged at intervals to form a brush head Type, one end surface of the plurality of cylinders is concavely formed with a fixing groove; and a flexible filling layer is formed, and the flexible filling layer is formed between the outer frame and the plurality of cylinders by injection molding to The plurality of cylinders are fixed to the outer frame.
  • a bristle is implanted in the fixing groove of the plurality of cylinders.
  • the handle, the outer frame and the plurality of cylinders are formed of a hard material; the flexible filling layer is formed of a soft material.
  • Figure 1 is a perspective view of the toothbrush of the present invention.
  • Figure 2 is an exploded view of the structure of the first embodiment of the toothbrush in the present invention.
  • Fig. 3 is a structural sectional view of the first embodiment of the toothbrush in the present invention.
  • Figure 4 is an exploded view of the second embodiment of the toothbrush in the present invention.
  • Figure 5 is a cross-sectional view of the second embodiment of the toothbrush in the present invention.
  • Fig. 6 is a schematic flow diagram of a method for forming a toothbrush head in the present invention.
  • FIG. 1 shows a perspective view of the toothbrush structure of the present invention.
  • the toothbrush 1 of the present invention includes a handle 10 and a brush head 20.
  • the brush head 20 has an outer frame 21, a plurality of cylinders 22, and a flexible filling layer 23, and the outer frame 21 is integrally arranged on the handle 10.
  • the plurality of cylinders 22 are arranged at intervals to form a brush head shape.
  • One end of the plurality of cylinders 22 is concavely formed with a fixing groove 221, and the other end of the plurality of cylinders 22 forms a closed portion 222.
  • a bunch of bristles 30 can be implanted and fixed in each fixing groove 221, and the flexible filling layer 23 is disposed between the outer frame 21 and the plurality of cylinders 22; in the embodiment shown in the figure, the A plurality of perforations 231 can be formed on one end of the flexible filling layer 23 to expose the closed portion 222 of the plurality of cylinders 22, and a cover 24 is further provided at the other end of the outer frame 21 relative to the fixing groove 221,
  • the outer shape of the cover body 24 conforms to the outer shape of the outer frame 21 to close one end surface of the flexible filling layer 23 and the closing portion 222 of the plurality of cylinders 22.
  • the cover body 24 can also be made integrally with the flexible filling layer 23.
  • the contact surface between the outer frame 21 and the flexible filling layer 23 has at least one opposed first interference portion 25 and second interference portion 26, and the first and second interference portions 25, 26 are mutually engaged
  • the effect of, can increase the bonding strength of the outer frame 21 and the flexible filling layer 23; and in the above embodiment, the first and second interference portions 25, 26 can be opposite convex and concave structures.
  • the handle 10, the outer frame 21 and the plurality of barrels 22 are formed of a hard material, such as a plastic material; the flexible filling layer 23 is formed of a soft material. Since each barrel 22 with bristles 30 is connected and fixedly wrapped by a flexible filling layer 23, each barrel 22 with bristles 30 can independently form a deflection in various directions. In this way, when the user is brushing his teeth, the bundles of bristles 30 on the brush head can be deflected in any direction and remove food debris on the surface and crevices of the teeth, which can effectively clean the teeth, and at the same time, the flexibility The filling layer 23 absorbs the excessive force applied by the user, thereby avoiding damage to the gums.
  • the method for forming the toothbrush head of the present invention at least includes the following steps:
  • Step S01 Provide a handle.
  • the handle 10 has a handle 11 and an outer frame 21 arranged at one end of the handle 11; one of the manufacturing methods of the handle It is made by injection molding, and the liquid plastic is injected into the first mold by injection molding technology.
  • the first mold is a mold corresponding to the shape of the grip 10 shown in FIG. 2. After the liquid plastic is cooled and solidified, it will be formed as The brush handle 10 shown in the figure.
  • the material of the grip 10 can be a hard material, such as a plastic material.
  • Step S02 Provide a plurality of cylinders 22, the plurality of cylinders 22 are arranged at intervals to form a brush head shape, and one end surface of the plurality of cylinders 22 is concavely formed with a fixing groove 221 for fixing the bristles 30; Using a tufting machine, the bristles are respectively implanted into the fixing grooves 221 of the plurality of cylinders 22 to form a bristle portion on the brush head 20, and then the bristles are shaped by heat melting.
  • Step S03 forming a flexible filling layer, and injecting liquid plastic into a second mold by injection molding.
  • the second mold is a mold corresponding to the shape of the flexible filling layer 23 shown in FIG. After the plurality of cylinders 22 are placed in the second mold, the liquid plastic is injected into the second mold by injection molding technology. After the liquid plastic is cooled and solidified, a flexible filling layer 23 as shown in the figure is formed.
  • the flexible filling layer 23 is formed of a soft material.
  • each barrel 22 with bristles 30 is coated with a flexible filling layer 23
  • each barrel 22 can form a multi-angle deflection, so that when the user brushes his teeth, the brush head
  • Each bundle of bristles 30 can be deflected in any direction, and remove food debris on the surface and crevices of the teeth, which can effectively clean the teeth.
  • the flexible filling layer 23 absorbs excessive force applied by the user. This prevents damage to the gums.

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  • Brushes (AREA)

Abstract

L'invention concerne une brosse à dents comprenant une poignée et une tête de brosse, la tête de brosse étant pourvue d'un cadre externe, de multiples corps de cylindre et d'une couche de remplissage souple. Le cadre externe est formé d'un seul tenant au niveau de l'extrémité arrière de la poignée, et les multiples corps de cylindre sont disposés à des intervalles pour former la forme d'une tête de brosse, une extrémité des multiples corps de cylindre est évidée pour former des rainures de fixation pour implanter des poils, et la couche de remplissage souple est disposée entre le cadre externe et les multiples corps de cylindre. Lorsque la brosse à dents selon la présente invention est utilisée par un utilisateur pour se brosser les dents, au fur et à mesure que les poils dans les multiples corps de cylindre peuvent se déplacer respectivement vers différentes directions, les faces des dents et les espaces entre les dents peuvent être efficacement nettoyés, ce qui permet d'obtenir un bon effet de nettoyage des dents et de fournir une utilisation pratique par l'utilisateur ; de plus, la couche de remplissage souple absorbe une force excessive appliquée par l'utilisateur, ce qui évite d'endommager les gencives.
PCT/CN2019/096660 2019-07-19 2019-07-19 Amélioration de la tête de brosse d'une brosse à dents et son procédé de formation WO2021012073A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/096660 WO2021012073A1 (fr) 2019-07-19 2019-07-19 Amélioration de la tête de brosse d'une brosse à dents et son procédé de formation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/096660 WO2021012073A1 (fr) 2019-07-19 2019-07-19 Amélioration de la tête de brosse d'une brosse à dents et son procédé de formation

Publications (1)

Publication Number Publication Date
WO2021012073A1 true WO2021012073A1 (fr) 2021-01-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/096660 WO2021012073A1 (fr) 2019-07-19 2019-07-19 Amélioration de la tête de brosse d'une brosse à dents et son procédé de formation

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Country Link
WO (1) WO2021012073A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1993066A (zh) * 2004-08-03 2007-07-04 荷兰联合利华有限公司 牙刷
CN200987460Y (zh) * 2006-12-25 2007-12-12 管应根 牙刷头
CN205250695U (zh) * 2015-04-22 2016-05-25 龙昌兄弟股份有限公司 牙刷刷头
CN205321601U (zh) * 2014-12-22 2016-06-22 龙昌兄弟股份有限公司 牙刷刷头
CN205513135U (zh) * 2016-03-03 2016-08-31 龙昌兄弟股份有限公司 牙刷刷头

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1993066A (zh) * 2004-08-03 2007-07-04 荷兰联合利华有限公司 牙刷
CN200987460Y (zh) * 2006-12-25 2007-12-12 管应根 牙刷头
CN205321601U (zh) * 2014-12-22 2016-06-22 龙昌兄弟股份有限公司 牙刷刷头
CN205250695U (zh) * 2015-04-22 2016-05-25 龙昌兄弟股份有限公司 牙刷刷头
CN205513135U (zh) * 2016-03-03 2016-08-31 龙昌兄弟股份有限公司 牙刷刷头

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