WO2021006277A1 - 歯ブラシ - Google Patents

歯ブラシ Download PDF

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Publication number
WO2021006277A1
WO2021006277A1 PCT/JP2020/026593 JP2020026593W WO2021006277A1 WO 2021006277 A1 WO2021006277 A1 WO 2021006277A1 JP 2020026593 W JP2020026593 W JP 2020026593W WO 2021006277 A1 WO2021006277 A1 WO 2021006277A1
Authority
WO
WIPO (PCT)
Prior art keywords
brush
toothbrush
engaging
grip portion
brush portion
Prior art date
Application number
PCT/JP2020/026593
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
秀俊 西尾
Original Assignee
株式会社西尾
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 株式会社西尾 filed Critical 株式会社西尾
Priority to JP2021530706A priority Critical patent/JP7573880B2/ja
Publication of WO2021006277A1 publication Critical patent/WO2021006277A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware

Definitions

  • the present invention relates to a toothbrush in which a brush portion divided into two and a grip portion are detachably connected and integrated.
  • a toothbrush has a brush portion in which a hair bundle is planted and a grip portion extended in the brush portion. It is configured to include.
  • the brush part and the grip part are integrated, so when replacing this with a new one, the whole including the grip part that can still be used sufficiently is included. It has been discarded. Therefore, it is wasteful and uneconomical, and is not desirable from the viewpoint of effective use of resources.
  • Patent Document 1 proposes an assembly-type toothbrush in which a replacement brush (a brush assembly in which a hair bundle is planted) is detachably assembled to the head portion of the main body.
  • Patent Document 2 proposes an assembly-type toothbrush in which a replacement brush is immersed in boiling water (temperature of about 80 ° C.) and attached / detached.
  • the present invention has been made in view of the above problems, and an object of the present invention is to improve economic efficiency and improve resources without causing a decrease in toothbrushing effect or a feeling of discomfort during use by simply replacing only the brush portion.
  • the purpose is to provide a toothbrush that can be effectively used.
  • the present invention has a toothbrush (1) including a brush portion (2) in which a hair bundle (2a) is planted and a grip portion (3) extended in the brush portion (2). ),
  • the brush portion (2) and the grip portion (3) are formed as separate bodies, and both are detachably connected and integrated.
  • the grip part when replacing the toothbrush, only the brush part is replaced with a new one, and the grip part can be continuously used as it is, so that only the old brush part that has been used up needs to be discarded. For this reason, waste is eliminated, economic efficiency is improved, and resources are effectively used.
  • the same handle can be used for a long period of time, it is possible to select and use one with high decorativeness and design or one using high-grade materials. Become. As a result, the toothbrush can be made into a high-value product that matches individual tastes as compared with the conventional disposable one.
  • the size of the brush portion is the same as the size of the brush portion of the existing toothbrush, and there is no difference between the two, so that the tooth brushing effect is not deteriorated and a sense of discomfort during use is not caused.
  • a male screw (2b) is formed in one (2) of the brush portion (2) and the grip portion (3), and a female screw hole (3a) is formed in the other (3). Then, by screwing the male screw (2b) into the female screw hole (3a), the brush portion (2) and the grip portion (3) may be detachably connected and integrated. ..
  • the male screw formed on the brush portion is fitted into the female screw hole formed on the grip portion, and the brush portion is screwed to the grip portion by a simple operation of turning the brush portion. Can be done. Then, if the used brush portion is turned in the direction opposite to that at the time of mounting, the male screw and the female screw hole are released from the screw, and the brush portion can be easily removed from the grip portion and discarded. .. Therefore, even a child or an elderly person can easily attach / detach the brush portion to / from the grip portion.
  • an engaging claw (12a) is formed on one (12) of the brush portion (12) and the grip portion (13), and an engaging groove (13b) is formed on the other (13).
  • a new brush portion is attached to the grip portion and both are connected and integrated by a simple operation of engaging the engaging claw formed on the brush portion with the engaging groove formed on the grip portion. Can be transformed into. Then, if the engaged claw of the brush portion that has been used and the engaging groove of the grip portion are disengaged, the brush portion can be easily removed from the grip portion and discarded. Therefore, even a child or an elderly person can easily attach / detach the brush portion to / from the grip portion.
  • a columnar convex portion (22A) is projected from one end (22) of the brush portion (22) and the grip portion (23) in the axial direction, and the shaft of the other (23).
  • a circular hole (23A) into which the columnar convex portion (22A) is inserted and fitted is formed at one end in the direction, and an engaging protrusion (22a) along the circumferential direction is formed on a part of the outer periphery of the columnar convex portion (22A).
  • the brush portion (22) and the grip portion (23) may be detachably connected and integrated.
  • the columnar convex portion protruding from the brush portion is aligned with the circular hole of the grip portion, and the engaging protrusion formed on the outer circumference of the cylindrical convex portion is the inner circumference of the circular hole of the grip portion.
  • an insertion plate (32a) and an engaging convex portion (32b) are formed on one (32) of the brush portion (32) and the grip portion (33), and the other (33).
  • An insertion groove (33a) and an engagement recess (33b) are formed in the insertion groove (33a), the insertion plate (32a) is inserted into the insertion groove (33a), and the engagement convex portion (32b) is inserted into the engagement recess (32b).
  • the insertion plate formed in the brush portion is inserted into the insertion groove formed in the grip portion, and the engaging convex portion formed in the brush portion is inserted into the engaging concave portion formed in the grip portion.
  • a new brush portion can be attached to the grip portion and the two can be connected and integrated by a simple operation of engaging. Then, if the used brush portion is pulled out from the grip portion to release the engagement between the engaging convex portion of the brush portion and the engaging concave portion of the grip portion, the brush portion can be easily removed from the grip portion and discarded. can do. Therefore, even a child or an elderly person can easily attach / detach the brush portion to / from the grip portion.
  • the toothbrush according to the present invention by simply replacing only the brush portion, it is possible to improve economic efficiency and effectively use resources without reducing the tooth brushing effect or causing discomfort during use. Is obtained.
  • FIG. 8 It is a partial perspective view which shows the connection structure of the toothbrush which concerns on Embodiment 3 of this invention.
  • 10A to 10C are sectional views taken along the line CC of FIG. 8 showing the connection process of the toothbrush according to the third embodiment of the present invention in that order.
  • FIG. 1 is a side view of the toothbrush according to the first embodiment of the present invention
  • FIG. 2 is a sectional view taken along line AA of FIG. 1
  • FIG. 3 is an exploded side view of the toothbrush.
  • the toothbrush 1 includes a brush portion 2 in which a hair bundle is planted, and a grip portion 3 which is a handle portion extending linearly from the brush portion 2.
  • the grip portion 2 and the grip portion 3 are separately configured.
  • the brush portion 2 and the grip portion 3 are detachably connected and integrated by a connecting structure described later. More precisely, the brush portion 2 is replaceable with a new one, and the brush portion 2 is detachably connected to the grip portion 3.
  • the brush portion 2 is a portion for brushing teeth, and a hair bundle 2a having, for example, 20 to 24 tact (bundle or bundle) is planted in the main body (base portion) 2A of the brush portion 2. ..
  • a hair bundle 2a hair made of a resin material such as nylon or polyester or a natural material is used. Further, a resin material such as polypropylene or polyester is used for the main body (base portion) 2A of the brush portion 2.
  • the grip portion 3 which is the handle portion is a portion to be gripped by the user when brushing the teeth, and a resin material such as polypropylene or polyester is also used for this.
  • the toothbrush needs to be replaced with a new one at an appropriate time (usually less than 2 months) because the hair bundle deteriorates due to use, but the toothbrush 1 according to the present embodiment is described above.
  • the brush portion 2 and the grip portion 3 are separately configured, and both are detachably connected and integrated. Therefore, when replacing the toothbrush 1, only the brush portion 2 in which the hair bundle 2a has deteriorated can be replaced with a new one, and the grip portion 3 in which the hair bundle 2a has not deteriorated can be continuously used as it is.
  • one end (the lower end of FIG. 3) in the axial direction (longitudinal direction) of the connecting side (the side connected to the grip portion 3) of the brush portion 2 A columnar male screw 2b that protrudes concentrically in the axial direction is integrally formed. Further, as shown in FIG. 3, a circular hole-shaped female screw hole 3a is formed at one end in the axial direction (upper end of FIG. 3) on the connecting side (the side connected to the brush portion 2) of the grip portion 3. There is.
  • the outer diameter of the axial end portion of the brush portion 2 on the connecting side and the outer diameter of the axial end portion of the grip portion 3 on the connecting side are set to the same value (same diameter).
  • the male screw 2b of the new brush portion 2 is aligned with the female screw hole 3a of the grip portion 3, and the brush portion 2 is used. Is turned around the center of the axis, the male screw 2b of the brush portion 2 is screwed into the female screw hole 3a of the grip portion 3, and the brush portion 2 is screwed into the grip portion 3 as shown in FIGS. 1 and 2. Both are connected and integrated.
  • the toothbrush 1 shown in FIG. 1 in which the brush portion 2 and the grip portion 3 are connected and integrated in this way can be used for brushing teeth by the user gripping and operating the grip portion 3 in the same manner as a conventional toothbrush. Be done.
  • the user can rotate the used brush portion 2 in the direction opposite to that at the time of attachment.
  • the screw between the male screw 2b and the female screw hole 3a is released, and the brush portion 2 can be easily removed from the grip portion 3 and discarded.
  • the toothbrush 1 when the toothbrush 1 reaches the replacement time, only the brush portion 2 is replaced with a new one, and the grip portion 3 can be continuously used as it is. Since it can be done, only the old brush part 2 that has been used up needs to be discarded. For this reason, waste is eliminated, economic efficiency is improved, and resources are effectively used. Further, since the same grip portion 3 can be used for a long period of time, it is possible to select and use one having high decorativeness and design, or one using a high-grade material. Become. As a result, the toothbrush 1 can be made into a high-value product that matches individual tastes as compared with the conventional disposable toothbrush.
  • the size of the brush part 2 is the same as the size of the brush part of the existing toothbrush, and since there is no difference between the two, there is no deterioration in the tooth brushing effect and no discomfort during use. Further, since the grip portion 3 can be continuously and repeatedly used, the user selects a grip portion 3 having a color or design of his / her own preference and continues to use it for a long period of time. be able to.
  • the brush portion 2 can be attached to and detached from the grip portion 3 by simply inserting the male screw 2b formed in the brush portion 2 into the female screw hole 3a formed in the grip portion 3 and turning the brush portion 2. Therefore, even a child or an elderly person can easily attach / detach the brush portion 2 to / from the grip portion 3.
  • the male screw 2b is formed in the brush portion 2 and the female screw hole 3a is formed in the grip portion 3, but conversely, the female screw hole is formed in the brush portion 2 to grip. It goes without saying that the same effect as described above can be obtained even if the male screw is formed in the portion 3.
  • Embodiment 2 of the present invention will be described below with reference to FIGS. 4 to 7.
  • FIG. 4 is a side view of the toothbrush according to the second embodiment of the present invention
  • FIG. 5 is a sectional view taken along line BB of FIG. 4
  • FIG. 6 is a partial perspective view showing a connecting structure of the toothbrush
  • FIGS. 7A to 7C are. It is a partial cross-sectional view which shows the connection process of the toothbrush in order.
  • the basic configuration of the toothbrush 11 according to the present embodiment is the same as that of the toothbrush 1 according to the first embodiment, and the toothbrush 11 is independently configured as a separate brush portion 12 and grip portion 13. Since the brush portion 12 and the grip portion 13 are only different in the connection structure, the connection structure will be described below.
  • rectangular plate-shaped brackets 12A are integrally projected at two opposing positions of the axial end (lower ends of FIGS. 5 and 6) on the connecting side of the brush portion 12.
  • the engaging claws 12a are integrally projected inward (inward in the radial direction).
  • the engaging claws 12a are allowed to pass through the two opposing positions on the outer periphery of the axial end portion (upper end portion in FIG. 6) on the connecting side of the grip portion 13. Rectangular axial grooves 13a are formed respectively. Then, an engaging groove 13b along the circumferential direction is formed on the small-diameter outer peripheral surface 13A of the portion where each axial groove 13a of the grip portion 13 is formed.
  • the new brush portion 12 is moved toward the grip portion 13 in the direction of the arrow in FIG. 7A, and the two brackets thereof.
  • the engaging claws 12a projecting from the inner surface of the 12A are aligned with the two axial grooves 13a formed in the grip portion 13.
  • the two engaging claws 12a of the brush portion 12 form an axial groove 13a of the grip portion 13. It is elastically deformed so as to come into contact with the outer peripheral surface 13A of the portion and spread outward.
  • the brush portion 12 is further pushed toward the grip portion 13, and as shown in FIG. 7C, when the engaging claws 12a of the brush portion 12 match the engaging grooves 13b of the grip portion 13, each bracket 12A In order to return to the original positions by the elastic restoring force, the engaging claws 12a projecting from each bracket 12A are engaged with the engaging grooves 13b of the gripping portion 13, and the brush portion 12 is connected to the gripping portion 13. Both are integrated.
  • the user spreads the bracket 12A of the brush portion 12 with a tool or the like and projects it into the bracket 12A. If the engagement between the engaging claw 12a and the engaging groove 13b is released, the brush portion 12 can be easily removed from the grip portion 13 and discarded.
  • the brush portion 12 is gripped by a simple operation of engaging and disengaging the engaging claw 12a on the brush portion 12 side with respect to the engaging groove 13b on the grip portion 13 side. Since it can be attached to and detached from 13, even a child or an elderly person can easily replace the old brush portion 12 with a new one.
  • the engaging claw 12a is formed on the brush portion 12 side and the engaging groove 13b is formed on the grip portion 13 side, but on the contrary, the engaging groove is formed on the brush portion 12 side.
  • the same effect as described above can be obtained even if the engaging claw is formed on the grip portion 13 side.
  • Embodiment 3 of the present invention will be described below with reference to FIGS. 8 to 10.
  • FIG. 8 is a side view of the toothbrush according to the third embodiment of the present invention
  • FIG. 9 is a partial perspective view showing a connecting structure of the toothbrush
  • FIGS. 10A to 10C are C of FIG. 8 showing the connecting process of the toothbrush in that order.
  • -C line sectional view.
  • the basic configuration of the toothbrush 21 according to the present embodiment is the same as that of the toothbrush 1 according to the first embodiment, and the toothbrush 21 is independently configured as a separate brush portion 22 and grip portion 23. Since the brush portion 22 and the grip portion 23 differ only in the connecting structure, the connecting structure will be described below.
  • a columnar convex portion 22A is integrally projected at one end (lower end in FIG. 9) of the brush portion 22 on the connecting side in the axial direction, and is gripped.
  • a circular hole 23A into which the columnar convex portion 22A is inserted and fitted is formed at one end in the axial direction (upper end of FIG. 9) on the connecting side of the portion 23.
  • engaging protrusions 22a along the circumferential direction are partially formed at two opposite positions on the outer periphery of the columnar convex portion 22A projecting from the brush portion 22, and the circular holes 23A formed in the grip portion 23.
  • a rectangular axial groove 23a and an engaging groove 23b extending in the circumferential direction from the axial groove 23a are formed on the inner circumference of the above.
  • the engaging projection 22a on the brush portion 22 side is axially oriented on the grip portion 23 side.
  • the cylindrical convex portion 22A of the brush portion 22 is fitted into the circular hole 23A of the grip portion 23 in the state of being aligned with the groove 23a, and the brush portion 22 is pushed toward the grip portion 23 side (lower side of FIG. 10).
  • the two engaging protrusions 22a on the brush portion 22 side passed through the two axial grooves 23a on the gripping portion 23 side, respectively, and these engaging protrusions 22a matched the engaging grooves 23b on the gripping portion 23 side.
  • the brush portion 22 is turned around the center of the axis in a predetermined direction (clockwise in FIG. 10).
  • the two engaging protrusions 22a on the brush portion 22 side engage with the two engaging grooves 23b on the grip portion 23 side, respectively.
  • the brush portion 22 is rotated by a predetermined angle, as shown in FIG. 10C, the two engaging protrusions 22a are completely fitted into the two engaging grooves 23b, so that the new brush portion 22 is the grip portion 23.
  • the toothbrush 21 shown in FIG. 8 is assembled by being attached to and integrated with each other.
  • the user turns the brush portion 22 around the axis in the direction opposite to that at the time of assembly. Then, since the engagement between the two engaging protrusions 22a on the brush portion 22 side and the two engaging grooves 23b on the grip portion 23 side is released, the brush portion 22 is easily pulled out from the grip portion 23 and removed. The removed brush portion 22 can be discarded.
  • the toothbrush 21 according to the present embodiment when the toothbrush 21 reaches the replacement time, only the brush portion 22 is replaced with a new one, and the grip portion 23 can be continuously used as it is. Therefore, the same effect as that of the toothbrushes 1 and 11 according to the first and second embodiments can be obtained.
  • the cylindrical convex portion 22A of the brush portion 22 is fitted into the circular hole 23A of the grip portion 23, and the brush portion 22 is simply rotated by a predetermined angle around the axis center. Since the brush portion 22 can be attached to and detached from the grip portion 23 by operation, even a child or an elderly person can easily replace the old brush portion 22 with a new one.
  • the engaging protrusion 22a is formed on the brush portion 22 side and the engaging groove 23b is formed on the grip portion 23 side, but on the contrary, the engaging groove is formed on the brush portion 22 side.
  • the same effect as described above can be obtained even if the engaging protrusion is formed on the grip portion 23 side.
  • Embodiment 4 of the present invention will be described below with reference to FIGS. 11 to 14.
  • FIG. 11 is a partially broken front view of the toothbrush according to the fourth embodiment of the present invention
  • FIG. 12 is a side view of the toothbrush
  • FIG. 13 is an exploded front view of the toothbrush
  • FIG. 14 is an exploded side view of the toothbrush. ..
  • the basic configuration of the toothbrush 31 according to the present embodiment is the same as that of the toothbrushes 1, 11 and 21 according to the first to third embodiments, and the toothbrush 31 is an independently configured brush. Since the portion 32 and the grip portion 33 are connected and integrated, and the connecting structure between the brush portion 32 and the grip portion 33 is different, the connecting structure will be described below.
  • a trapezoidal plate-shaped insertion plate 32a is integrally formed at one end (lower ends of FIGS. 13 and 14) on the connecting side of the brush portion 32 toward the lower part of the drawing. It is projected, and an elliptical engaging convex portion 32b in the front view is integrally projected from the insertion plate 32a.
  • one end portion in the axial direction (upper end portion in FIG. 11) on the connecting side of the grip portion 33 has an insertion groove 33a having the same shape as the insertion plate 32a formed in the brush portion 32.
  • An engaging recess 33b is formed in which the engaging convex portion 32b projecting from the insertion plate 32a engages.
  • the insertion plate 32a of the new brush portion 32 is inserted into the insertion groove 33a of the grip portion 33. Then, as shown in FIG. 11, the engaging convex portion 32b projecting from the insertion plate 32a engages with the engaging concave portion 33b formed in the grip portion 33, so that the brush portion 32 is connected to the grip portion 33. And both are integrated.
  • the user can pull the brush portion 32 in the direction of pulling it out from the grip portion 33, and the difference between the brush portions 32.
  • the engagement between the engaging convex portion 32b integrally protruding from the insertion plate 32a and the engaging concave portion 33b formed in the grip portion 33 is released. Therefore, as shown in FIGS. 13 and 14, the brush portion 32 can be easily removed from the grip portion 33 and discarded.
  • the toothbrush 31 according to the present embodiment when the toothbrush 31 reaches the replacement time, only the brush portion 32 is replaced with a new one, and the grip portion 33 can be continuously used as it is. Therefore, the same effect as that of the toothbrushes 1, 11 and 21 according to the first to third embodiments can be obtained.
  • the brush portion 32 can be attached to and detached from the grip portion 13 by a simple operation of inserting or pulling out the brush portion 32 into the grip portion 33. Even an elderly person can easily replace the old brush portion 32 with a new one.
  • the insertion plate 32a and the engaging convex portion 32b are formed on the brush portion 32 side, and the insertion groove 33a and the engaging concave portion 33b are formed on the grip portion 33 side, but the opposite is true.
  • the same effect as described above can be obtained even if the insertion groove and the engaging concave portion are formed on the brush portion 32 side and the insertion plate and the engaging convex portion are formed on the grip portion 33 side.
  • connecting structure of the brush portion and the grip portion in the toothbrush according to the present invention is not limited to those exemplified above, and it goes without saying that any other connecting structure can be adopted.

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PCT/JP2020/026593 2019-07-09 2020-07-07 歯ブラシ WO2021006277A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021530706A JP7573880B2 (ja) 2019-07-09 2020-07-07 歯ブラシ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019127976 2019-07-09
JP2019-127976 2019-07-09

Publications (1)

Publication Number Publication Date
WO2021006277A1 true WO2021006277A1 (ja) 2021-01-14

Family

ID=74113768

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/026593 WO2021006277A1 (ja) 2019-07-09 2020-07-07 歯ブラシ

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JP (1) JP7573880B2 (enrdf_load_stackoverflow)
WO (1) WO2021006277A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7460846B1 (ja) 2023-11-22 2024-04-02 サンスター株式会社 口腔ケア用具のハンドル

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50126459U (enrdf_load_stackoverflow) * 1974-03-26 1975-10-17
JPS6074637U (ja) * 1982-08-09 1985-05-25 国枝　保直 ブラシだけ交換できる歯ブラシ
JP3089919U (ja) * 2002-05-13 2002-11-22 匡伸 中村 ブラシ部が交換可能な歯ブラシ
JP3136872U (ja) * 2007-08-14 2007-11-08 文榮 黄 ヘッド交換可能なエコロジー歯ブラシ
JP2008253702A (ja) * 2007-04-04 2008-10-23 Yoshio Nishibori 簡易組立式歯ブラシ
JP2018508327A (ja) * 2015-02-16 2018-03-29 ブルーレオ インコーポレイテッド 内部流路が形成された歯洗浄器具

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6692604B2 (ja) 2015-02-26 2020-05-13 秀俊 西尾 歯ブラシ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50126459U (enrdf_load_stackoverflow) * 1974-03-26 1975-10-17
JPS6074637U (ja) * 1982-08-09 1985-05-25 国枝　保直 ブラシだけ交換できる歯ブラシ
JP3089919U (ja) * 2002-05-13 2002-11-22 匡伸 中村 ブラシ部が交換可能な歯ブラシ
JP2008253702A (ja) * 2007-04-04 2008-10-23 Yoshio Nishibori 簡易組立式歯ブラシ
JP3136872U (ja) * 2007-08-14 2007-11-08 文榮 黄 ヘッド交換可能なエコロジー歯ブラシ
JP2018508327A (ja) * 2015-02-16 2018-03-29 ブルーレオ インコーポレイテッド 内部流路が形成された歯洗浄器具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7460846B1 (ja) 2023-11-22 2024-04-02 サンスター株式会社 口腔ケア用具のハンドル

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JPWO2021006277A1 (enrdf_load_stackoverflow) 2021-01-14
JP7573880B2 (ja) 2024-10-28

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