WO2015050019A1 - Handle body for toothbrush, method for manufacturing same, and toothbrush - Google Patents
Handle body for toothbrush, method for manufacturing same, and toothbrush Download PDFInfo
- Publication number
- WO2015050019A1 WO2015050019A1 PCT/JP2014/075212 JP2014075212W WO2015050019A1 WO 2015050019 A1 WO2015050019 A1 WO 2015050019A1 JP 2014075212 W JP2014075212 W JP 2014075212W WO 2015050019 A1 WO2015050019 A1 WO 2015050019A1
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- WIPO (PCT)
- Prior art keywords
- resin
- toothbrush
- handle body
- handle
- fitting
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Classifications
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- 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
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
- A46B5/021—Grips or handles specially adapted to conform to the hand
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- 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
- A46B2200/108—Inter-dental toothbrush, i.e. for cleaning interdental spaces specifically
Definitions
- the present invention relates to a handle body for a toothbrush, a method for manufacturing the handle body, and a toothbrush.
- This application claims priority based on Japanese Patent Application No. 2013-207708 for which it applied to Japan on October 2, 2013, and uses the content here.
- a handle body provided with a handle part, a head part provided at the tip of the handle part, and a hair bundle planted in the head part
- the handle portion is formed with a reduced neck portion, and a head is provided at the tip of the neck portion.
- the toothbrush is required to improve operability in the oral cavity in order to make it easier to scrub the back teeth and the back side of the front teeth.
- Known toothbrushes that have improved operability in the oral cavity include those in which the head is made smaller, the head is made thinner, or the neck is made thinner.
- a toothbrush is known in which the handle portion is covered with an elastomer resin to prevent a finger from slipping and the operability is improved.
- a handle body of a toothbrush is made of polyolefin such as polypropylene (PP). If the head part of the PP handle body is simply thinned, the head part is likely to be damaged when the hair bundle is implanted with a flat-line type flock, the strength of the head part is reduced, and the head part is damaged during use. Problems such as becoming easier. To solve such a problem, a toothbrush in which a hair bundle is implanted with a flat wire having a specific thickness has been proposed (for example, Patent Document 1).
- Patent Document 1 can maintain the strength of the thinned head portion, if the neck portion is thinned, the strength of the neck portion becomes insufficient.
- Polybutylene terephthalate (PBT), polyacetal (POM), and the like are known as high-strength resins, but PBT and POM have poor adhesion to elastomer resins. For this reason, when the handle body made of PBT or POM is covered with an elastomer resin, there is a problem that the shape of the covering portion made of the elastomer resin is limited and it is difficult to exert a sufficient anti-slip effect. Furthermore, PBT and POM have poor adhesion to general-purpose plastics such as PP.
- an object of the present invention is to provide a handle body of a toothbrush that has two or more members made of different resins and has sufficient strength.
- the handle body of the toothbrush of the present invention is a handle body of a toothbrush comprising a handle portion and a head portion provided at a tip of the handle portion, and a first member made of a first resin, A second member made of a second resin different from the first resin, wherein the first member includes the head portion and an extending portion extending from the head portion toward the handle portion.
- the second member forms at least a part of the handle part, a part of the extension part is embedded in the second member, and the extension part intersects with the extension direction.
- the fitting part which protrudes to a direction, ie, the flocked surface 11 side (surface) direction, and its back surface is formed, and the said fitting part is fitting with the fitting hole formed in said 2nd member. It is characterized by.
- the fitting portion preferably passes through the fitting hole, and the first resin preferably contains at least one selected from polyester and polyacetal as a main component, and the second resin is The second member may be coated with a softer resin than the second resin.
- the toothbrush of the present invention is characterized in that a hair bundle is implanted in the handle body for the toothbrush of the present invention.
- the method for manufacturing a handle for a toothbrush according to the present invention is characterized in that the first member is disposed in a mold and the second resin is injected into the mold.
- the handle of the toothbrush of the present invention has two or more members made of different resins and has sufficient strength.
- the toothbrush 1 shown in FIGS. 1A and 1B includes a handle body 20 and a handle body for a toothbrush (hereinafter sometimes simply referred to as a handle body) 2 including a handle portion 20 and a head portion 10 provided at the tip of the handle portion 20.
- the handle portion 20 includes a grip portion 24 and a neck portion 22 that extends from the grip portion 24 and connects to the head portion 10.
- a plurality of flock holes 12 are formed in the flocked surface 11 of the head portion 10, and hair bundles 14 for hair are planted in the flock holes 12.
- bristle bundle is abbreviate
- the handle body 2 includes a first member 4 that forms the head portion 10 and the neck portion 22, a second member 6 that forms the grip portion 24, and a covering portion 8 that covers a part of the second member 6.
- the flocked surface 11 side in this specification, the flocked surface side is referred to as “surface”.
- a non-slip portion 82 having an elliptical shape in plan view is formed.
- the shape of the non-slip portion 82 is not particularly limited as long as it has a function of preventing slip when the toothbrush of the present invention is used, but an oval shape, a circular shape, and other oval shapes are preferable in plan view.
- the first member 4 is formed by integrally forming a head portion 10 and a substantially cylindrical extending portion 40 extending from the head portion 10.
- a second fitting portion 46 is formed at the tip of the extended portion 40, and a first fitting portion 44 is formed between the second fitting portion 46 and the head portion 10.
- the 1st fitting part 44 and the 2nd fitting part 46 protrude on the surface (flocked surface 11 side) and the back surface of the extension part 40, it is preferable not to protrude on the side surface. That is, the first fitting portion 44 and the second fitting portion 46 protrude in a direction that intersects the extending direction of the extending portion 40.
- One aspect of the present invention is configured such that when the toothbrush of the present invention is viewed from the surface side, the end portions of the first fitting portion and the second fitting portion can be observed.
- the end portions of the first fitting portion and the second fitting portion constitute a surface having no step from the outer surface formed by the second member. Since the fitting portion is formed in the extended portion 40, the first member 4 is difficult to come off from the second member 6.
- a through hole 48 is formed in the extended portion 40 between the first fitting portion 44 and the second fitting portion 46. The through hole 48 penetrates from the front surface to the back surface.
- an annular recess 42 that circulates around the extended portion 40 is formed at a position corresponding to the boundary 5.
- the boundary 5 refers to a location where the first member and the second member are in contact with each other on the outer surface (the surface where the member can be seen on the front).
- a portion from the annular recess 42 to the second fitting portion 46 is embedded in the second member 6, and is exposed from the boundary 5 to the head portion 10. That is, the boundary 5 is located at the base end of the neck portion 22, and the extended portion 40 is partially embedded in the second member 6, and the exposed portion forms the neck portion 22. That is, the neck portion 22 refers to a portion from a location where the extending portion 40 extends from the head portion 10 in the extending direction to the boundary 5.
- the first fitting portion 44 passes through the first fitting hole 64
- the second fitting portion 46 passes through the second fitting hole 66.
- the second member 6 has a recess 62 at a position corresponding to the anti-slip portion 82.
- a first fitting hole 64 is formed in the second member 6 at a position corresponding to the first fitting portion 44, and a second fitting is provided at a position corresponding to the second fitting portion 46.
- a hole 66 is formed. That is, in the handle body of the present invention, the first fitting portion 44 and the first fitting hole 64 are fitted; the second fitting portion 46 and the second fitting hole 66 are fitted.
- the fitting portions 44 and 46 and the fitting holes 64 and 66 are configured, respectively. It is preferable that the end of the fitting portion 44 on the surface side of the toothbrush constitutes the same surface as a part of the surface formed by the second member.
- a through hole 68 is formed in the second member 6 at a position corresponding to the through hole 48 of the first member.
- the through holes 68 are opened in the front surface and the back surface of the second member 6. That is, in the handle body of the present invention, the through holes 48 and 68 are configured so that the through hole 48 of the first member and the through hole 68 of the second member pass through.
- the covering portion 8 includes a covering main body 80 and a non-slip portion 82.
- the covering body 80 covers the side surface and the back surface of the second member 6 from the boundary 5 to the rear end of the grip portion 24 and opens a part of the surface of the second member 6. Is formed.
- the anti-slip portion 82 is connected to the covering body 80 by a support portion 81 that passes through the through hole 48 and the through hole 68.
- the first member 4 is made of a first resin.
- the first resin is selected in consideration of the rigidity and mechanical characteristics required for the head portion 10 and the neck portion 22.
- the first resin include resins having a flexural modulus (JIS K7203) of 500 MPa or more and 3000 MPa or less.
- polyester such as PBT, polyethylene terephthalate (PET), polycyclohexylenedimethylene terephthalate (PCT); POM Polyolefins such as PP and polyethylene (PE); polystyrene (PS); acrylonitrile / butadiene / styrene resin (ABS), cellulose propionate (CP), polyarylate, polycarbonate, acrylonitrile / styrene copolymer resin (AS), etc.
- a resin mainly composed of one or more selected from polyester and POM is preferable, polyester and POM are more preferable, and PBT and POM are further preferable.
- polyester and POM have higher rigidity, sufficient strength can be obtained even if the head portion 10 is made thinner or the neck portion 22 is made thinner. These resins may be used alone or in combination of two or more.
- the “main component” means that 50% by mass or more may be contained, and 70% by mass or more is more preferable.
- the second member 6 is made of a second resin different from the first resin. Different from the first resin, the type and composition of the resin may be different, the type of additive may be different, or the color tone may be different. In the present embodiment, the second resin is determined in consideration of the rigidity required for the grip portion 24, adhesiveness with the resin constituting the covering portion 8, and the like.
- the second resin may be different from the first resin, and examples thereof include a resin having a flexural modulus (JIS K7203) of 500 MPa to 3000 MPa, such as PBT, polyethylene terephthalate (PET), polycyclohexylenedimethylene terephthalate.
- Polyester such as (PCT); Polyolefin such as POM; PP and polyethylene (PE); Polystyrene (PS); Acrylonitrile butadiene styrene resin (ABS), Cellulose propionate (CP), Polyarylate, Polycarbonate, Acrylonitrile styrene Copolymer resin (AS) etc. are mentioned.
- polyolefin is preferable, and PP is more preferable. If it is polyolefin, when the coating
- These resins may be used alone or in combination of two or more.
- the first resin is a resin mainly composed of one or more selected from polyester and POM, and the second resin is a polyolefin.
- the first resin is preferably PBT or POM, and the second resin is PP.
- the head portion 10 can be made thinner, the neck portion 22 can be made thinner, the operability in the oral cavity can be improved, and the adhesiveness between the grip portion 24 and the covering portion 8 can be improved.
- the first resin may be a non-translucent resin and the second resin may be a translucent resin.
- the covering portion 8 may be anything softer than the second resin (hereinafter sometimes referred to as soft resin).
- soft resin for example, those having a Shore hardness A of 90 or less are preferred, and those having a Shore hardness A of 50 to 80 are more preferred.
- the shore hardness is a value obtained by applying a test load that changes in accordance with the indentation depth to the sample using an indenter and determining the resulting indentation depth h, and is measured by the method described in JIS K7215.
- the soft resin include elastomers (for example, olefin elastomers, styrene elastomers, polyester elastomers, polyurethane thermoplastic elastomers, etc.) and silicone.
- the length of the handle body 2 is not particularly limited, and is, for example, 120 to 200 mm.
- the length of the handle body 2 refers to the maximum distance from the tip of the head portion 10 to the grip portion 24.
- the width of the head portion 10 is not particularly limited, and is preferably 7 to 13 mm, and more preferably 8 to 12 mm, for example. If it is more than the said lower limit, the area which implants the hair
- the width of the head portion 10 is the maximum length in the horizontal direction and the direction perpendicular to the extending direction of the handle body 2 when the toothbrush is placed with the flocked surface of the head portion 10 facing upward.
- the length of the head unit 10 is not particularly limited, and is preferably 10 to 30 mm, for example, and more preferably 12 to 28 mm. If it is more than the said lower limit, the area which implants the hair
- the length of the head unit 10 is the distance from the tip of the head unit 10 to the rear end of the hair bundle on the most rear end side among the hair bundles 14.
- the distance to the rear end of the hair bundle on the rear end side is preferably 15 to 30 mm, for example.
- the thickness of the head portion 10 can be determined in consideration of the material and the like, and is preferably 2 to 6 mm, and more preferably 2.5 to 4 mm.
- strength of the head part 10 can be raised more, and if it is below the said upper limit, the operativity in an intraoral area will be improved more.
- the thickness of the neck portion 22 can be determined in consideration of the material and the like.
- the narrowest portion of the neck portion 22 is preferably 3 to 6 mm, and more preferably 3.5 to 4.5 mm. If it is more than the said lower limit, the intensity
- the hair bundle 14 is a bundle of a plurality of hairs.
- the length (hair length) from the flocked surface 11 to the tip of the hair bundle 14 can be determined in consideration of the hair and the like required for the hair bundle 14 and is, for example, 6 to 13 mm. All the hair bundles 14 may have the same hair length or may be different from each other.
- the thickness (hair bundle diameter) of the hair bundle 14 can be determined in consideration of the hair and the like required for the hair bundle 14 and is, for example, 1 to 3 mm. All the hair bundles 14 may have the same hair bundle diameter or may be different from each other.
- Examples include hairs that are almost the same (straight hairs).
- Examples of the straight hair include those in which the hair tip is a plane substantially parallel to the flocked surface 11 and those in which the hair tip is rounded into a hemisphere.
- the material of the hair is, for example, polyamide such as 6-12 nylon (6-12NY), 6-10 nylon (6-10NY), PET, PBT, polytrimethylene terephthalate (PTT), polyethylene naphthalate (PEN), Examples thereof include polyesters such as polybutylene naphthalate (PBN), polyolefins such as PP, elastomer resins such as polyolefin elastomers and styrene elastomers. These resin materials can be used singly or in combination of two or more.
- the bristle include polyester bristle having a multi-core structure having a core part and at least one or more sheath parts provided outside the core part.
- the cross-sectional shape of the hair is not particularly limited, and may be a circle such as a perfect circle or an ellipse, a polygon, a star, a three-leaf clover, a four-leaf clover, or the like.
- the cross-sectional shapes of all the hairs may be the same or different.
- the thickness of the hair can be determined in consideration of the material and the like.
- a plurality of hairs having different thicknesses may be used in any combination.
- the handle body 2 is formed by insert molding, and then the hair bundle 14 is implanted in the head portion 10.
- insert molding the first member 4 is placed in a first mold, and a second resin is injected therein to obtain a substrate.
- the first member 4 is obtained by, for example, conventionally known injection molding.
- the first mold to be used has a cavity having a shape corresponding to the second member 6 with the first member 4 disposed therein.
- the thickness of the 2nd member 6 which covers the 1st member 4 turns into desired thickness, and can join the 1st member 4 and the 2nd member 6 more firmly.
- the obtained base is in a state in which the fitting portion formed in the first member 4 is fitted in the fitting hole of the second member 6.
- the obtained base is placed in the second mold, and a soft resin is injected to obtain the handle body 2.
- a cavity having a shape corresponding to the covering portion 8 is formed in a state where the base body is disposed inside.
- the soft resin injected into the second mold fills the through holes 48 and 68 to form the covering main body 80 and the non-slip portion 82.
- the hair bundle 14 is implanted into the head portion 10 of the obtained handle body 2.
- the hair bundle 14 is folded in half, and a flat wire sandwiched between the two is driven into the flock hole 12 to plant the hair bundle 14, and the lower end of the hair bundle 14 is implanted.
- a heat-sealing method in which the molten resin is pressed into and fixed in the molten resin, and an in-mold method in which the lower end of the hair bundle 14 is heated to form a molten lump and then the molten resin is injected into the mold to mold the flocked portion.
- the first member and the second member made of different resins are provided and have sufficient strength. For this reason, for example, even if the first member is composed of high-rigidity PBT or POM and the second member is composed of PP having high adhesiveness to the elastomer resin, the first member and the second member Since it is difficult to separate, a handle body with high strength can be obtained.
- the fitting portion is formed on the first member, it is difficult for the first member to come off from the second member. Furthermore, since the fitting portion penetrates the fitting hole, that is, the fitting portion contacts the inner surface of the second mold, the first member does not shift when the second resin is injected. The first member and the second member can be joined more firmly.
- the present invention is not limited to the above-described embodiment.
- the boundary between the first member and the second member that is, the place where the first member and the second member are in contact with each other on the outer surface (the surface where the member is visible on the front surface) is the base end of the neck portion.
- the present invention is not limited to this, and the boundary may be positioned at the base end of the head portion, the boundary may be positioned in the middle of the neck portion, or the boundary is gripped. It may be located in the middle of the part. That is, the extending part may not be exposed, may form a part of the neck part, or may form a part of the grip part.
- the base is composed of two members, the first member and the second member.
- substrate may be comprised with three or more members.
- the base body may be configured by three members including a member constituting the head portion, a member constituting the neck portion, and a member constituting the handle portion.
- these three members may be made of different resins, or the two members may be made of the same resin.
- the fitting part is formed in two places of the extension part, this invention is not limited to this, The fitting part may be formed only in one place, 3 It may be formed at more than one place.
- the fitting portion protrudes in two directions, the front surface and the back surface, but the present invention is not limited to this, and the fitting portion may be formed in consideration of the structure of the primary mold or the like. Good. Therefore, the fitting part may protrude only in one direction, may protrude radially, or may be formed in an annular shape. However, from the viewpoint of more firmly joining the first member and the second member, the fitting portion preferably protrudes in at least an arbitrary direction and the opposite direction.
- the fitting portion passes through the fitting hole.
- the present invention is not limited to this, and the fitting portion may not pass through the fitting hole. It may be covered with the second member.
- the fitting portion is preferably formed so as to penetrate the fitting hole.
- the covering portion is formed so as to cover a part of the second member.
- the present invention is not limited to this, and the covering portion may not be formed.
- the entire second member may be covered, or the covering portion may cover the first member.
- coated part is suitably determined according to the design and function of a toothbrush.
- a covering portion 108 that partially covers the second member may be provided.
- the handle body 102 includes a head portion 110 and a handle portion 120, and the handle portion 120 includes a neck portion 122 and a grip portion 124.
- the first member 104 forms a head part 110 and a neck part 122
- the second member 106 and the covering part 108 form a grip part 124
- the covering portion 108 is formed with two arcuate bulging portions 180 that bulge to the sides of the grip portion 124.
- the bulging portion 180 can determine the number of bulging portions and the degree of bulging from the second member depending on the desired design and application. Or you may provide the coating
- the handle body 202 includes a head portion 210 and a handle portion 220, and the handle portion 220 includes a neck portion 222 and a grip portion 224.
- the first member 204 forms a head portion 210 and a neck portion 222
- the second member 206 and the covering portion 208 form a handle portion 220
- the covering portion 208 is formed so as to cover one side surface of the grip portion 224 and open the other side surface, and the boundary 282 between the covering portion 208 and a portion where the second member 206 is exposed is oblique in plan view Is formed.
- an exposed portion 280 in which the second member 206 is exposed in an elliptical shape in plan view is formed on the side of the flocked surface 211 (that is, the surface) near the proximal end of the neck portion 222 in the grip portion 224.
- the handle of the toothbrush of the present invention has two or more members made of different resins and has sufficient strength.
Abstract
Description
本願は、2013年10月2日に日本に出願された特願2013-207708号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a handle body for a toothbrush, a method for manufacturing the handle body, and a toothbrush.
This application claims priority based on Japanese Patent Application No. 2013-207708 for which it applied to Japan on October 2, 2013, and uses the content here.
歯ブラシには、奥歯や前歯の裏側等をより擦掃しやすくするために、口腔内での操作性の向上が求められている。口腔内での操作性を高めた歯ブラシとしては、ヘッド部を小さくしたり、ヘッド部を薄くしたり、ネック部を細くしたものが知られている。
また、ハンドル部をエラストマー樹脂で被覆し、手指が滑るのを防止して、操作性の向上が図られた歯ブラシが知られている。 As a toothbrush, what has a handle body provided with a handle part, a head part provided at the tip of the handle part, and a hair bundle planted in the head part is generally known. Usually, the handle portion is formed with a reduced neck portion, and a head is provided at the tip of the neck portion.
The toothbrush is required to improve operability in the oral cavity in order to make it easier to scrub the back teeth and the back side of the front teeth. Known toothbrushes that have improved operability in the oral cavity include those in which the head is made smaller, the head is made thinner, or the neck is made thinner.
In addition, a toothbrush is known in which the handle portion is covered with an elastomer resin to prevent a finger from slipping and the operability is improved.
こうした問題に対し、特定の厚さの平線で毛束を植毛した歯ブラシが提案されている(例えば、特許文献1)。 Generally, a handle body of a toothbrush is made of polyolefin such as polypropylene (PP). If the head part of the PP handle body is simply thinned, the head part is likely to be damaged when the hair bundle is implanted with a flat-line type flock, the strength of the head part is reduced, and the head part is damaged during use. Problems such as becoming easier.
To solve such a problem, a toothbrush in which a hair bundle is implanted with a flat wire having a specific thickness has been proposed (for example, Patent Document 1).
強度の高い樹脂として、ポリブチレンテレフタレート(PBT)やポリアセタール(POM)等が知られているが、PBTやPOMはエラストマー樹脂との接着性に乏しい。このため、PBT製やPOM製のハンドル体をエラストマー樹脂で被覆する場合には、エラストマー樹脂からなる被覆部の形状が制限され、十分な滑り止め効果を発揮させにくいという問題がある。
さらに、PBTやPOMは、PP等の汎用のプラスチックとの接着性に乏しい。このため、例えば、PBTやPOMで構成されたヘッド部及びネック部と、PP等で構成されたハンドル部とを有するハンドル体をインサート成形で成形しても、PBTやPOMで構成された部材とPPで構成された部材とが、界面で剥離しやすい。PBTやPOMで構成された部材と、PP等で構成された部材とを個々に成形し、これらを接続すると、接続部の強度が低下したり、製造工程が煩雑になるという問題がある。
このように、部位毎に異なる樹脂を採用すると、十分な強度を有するハンドル体を得るのは困難である。
そこで、本発明は、異なる樹脂からなる2種以上の部材を備え、かつ十分な強度を有する歯ブラシのハンドル体を目的とする。 However, although the invention of
Polybutylene terephthalate (PBT), polyacetal (POM), and the like are known as high-strength resins, but PBT and POM have poor adhesion to elastomer resins. For this reason, when the handle body made of PBT or POM is covered with an elastomer resin, there is a problem that the shape of the covering portion made of the elastomer resin is limited and it is difficult to exert a sufficient anti-slip effect.
Furthermore, PBT and POM have poor adhesion to general-purpose plastics such as PP. Therefore, for example, even if a handle body having a head portion and a neck portion made of PBT or POM and a handle portion made of PP or the like is molded by insert molding, a member made of PBT or POM The member composed of PP is easily peeled off at the interface. When a member made of PBT or POM and a member made of PP or the like are individually formed and connected, there is a problem that the strength of the connecting portion is reduced or the manufacturing process becomes complicated.
As described above, when a different resin is used for each part, it is difficult to obtain a handle body having sufficient strength.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a handle body of a toothbrush that has two or more members made of different resins and has sufficient strength.
前記嵌合部は、前記嵌合孔を貫通していることが好ましく、前記第一の樹脂は、ポリエステル及びポリアセタールから選ばれる少なくとも1種を主成分とすることが好ましく、前記第二の樹脂は、ポリオレフィンであることが好ましく、前記第二の部材は、前記第二の樹脂よりも軟質な樹脂で被覆されていてもよい。 The handle body of the toothbrush of the present invention is a handle body of a toothbrush comprising a handle portion and a head portion provided at a tip of the handle portion, and a first member made of a first resin, A second member made of a second resin different from the first resin, wherein the first member includes the head portion and an extending portion extending from the head portion toward the handle portion. The second member forms at least a part of the handle part, a part of the extension part is embedded in the second member, and the extension part intersects with the extension direction. The fitting part which protrudes to a direction, ie, the flocked
The fitting portion preferably passes through the fitting hole, and the first resin preferably contains at least one selected from polyester and polyacetal as a main component, and the second resin is The second member may be coated with a softer resin than the second resin.
図1A及びBの歯ブラシ1は、ハンドル部20及びハンドル部20の先端に設けられたヘッド部10を備える歯ブラシ用のハンドル体(以下、単にハンドル体ということがある)2を備える。本実施形態において、ハンドル部20は、把持部24と、把持部24から延設されヘッド部10に接続するネック部22とを備える。
ヘッド部10の植毛面11には、植毛穴12が複数形成され、植毛穴12に用毛の毛束14が植設されている。
なお、図1Aの平面図においては、毛束の図示が省略されている。 A toothbrush according to an embodiment of the present invention will be described below with reference to FIGS. 1A to 4B.
The
A plurality of
In addition, in the top view of FIG. 1A, illustration of the hair | bristle bundle is abbreviate | omitted.
把持部24におけるネック部22の近傍、すなわち、第一の嵌合孔64と第二の嵌合孔66の間には、植毛面11側(本明細書において、植毛面側を「表面」ということもある)に平面視楕円形の滑止部82が形成されている。尚、本発明において滑止部82は、本発明の歯ブラシの使用時に滑り止めの機能を有すればその形状は特に限定されないが、平面視において楕円形、円形、その他のオーバル形が好ましい。 The
In the vicinity of the
延設部40に嵌合部が形成されているため、第一の部材4は第二の部材6から抜け落ちにくい。
延設部40には、第一の嵌合部44と第二の嵌合部46との間に、貫通孔48が形成されている。貫通孔48は、表面から背面に向かって貫通している。
延設部40には、境界5に対応する位置に、延設部40を周回する環状凹部42が形成されている。境界5とは、第一の部材と第二の部材が外表面(表に部材が見える面)において接する箇所をいう。環状凹部42が形成されていることで、第一の部材4と第二の部材6とをより強固に接続できる。 As shown in FIGS. 2A and 2B, the
Since the fitting portion is formed in the extended
A through
In the
本実施形態において、第一の嵌合部44は、第一の嵌合孔64を貫通し、第二の嵌合部46は第二の嵌合孔66を貫通している。 In the
In the present embodiment, the first
第二の部材6には、第一の嵌合部44に対応する位置に、第一の嵌合孔64が形成され、第二の嵌合部46に対応する位置に、第二の嵌合孔66が形成されている。すなわち、本発明のハンドル体においては、第一の嵌合部44と第一の嵌合孔64が嵌合するように;第二の嵌合部46と第二の嵌合孔66が嵌合するように、嵌合部44、46、嵌合孔64、66がそれぞれ構成されている。
嵌合部44の歯ブラシの表面側の端部は、第二の部材が形成する面の一部と同一面を構成することが好ましい。
第二の部材6には、第一の部材の貫通孔48に対応する位置に、貫通孔68が形成されている。この貫通孔68は、第二の部材6の表面及び背面に開孔している。すなわち、本発明のハンドル体において、第一の部材の貫通孔48と、第二の部材の貫通孔68が貫通するように、貫通孔48と68がそれぞれ構成されている。 As shown in FIGS. 3A and 3B, the
A first
It is preferable that the end of the
A through
本実施形態において、被覆本体80は、境界5から把持部24の後端に掛けて、第二の部材6の側面及び背面を被覆し、第二の部材6の表面の一部を開放するように形成されている。滑止部82は、貫通孔48及び貫通孔68を貫通する支持部81によって、被覆本体80と接続されている。 As shown in FIGS. 4A and 4B, the covering
In the present embodiment, the covering
第一の樹脂としては、曲げ弾性率(JIS K7203)が500MPa以上3000MPa以下である樹脂が挙げられ、例えば、PBT、ポリエチレンテレフタレート(PET)、ポリシクロへキシレンジメチレンテレフタレート(PCT)等のポリエステル;POM;PP、ポリエチレン(PE)等のポリオレフィン;ポリスチレン(PS);アクリロニトリル・ブタジエン・スチレン樹脂(ABS)、セルロースプロピオネート(CP)、ポリアリレート、ポリカーボネート、アクリロニトリル・スチレン共重合樹脂(AS)等が挙げられる。中でも、ポリエステル及びPOMから選ばれる1種以上を主成分とする樹脂が好ましく、ポリエステル、POMがより好ましく、PBT、POMがさらに好ましい。ポリエステルやPOMであれば、剛性がより高いため、ヘッド部10をさらに薄くしたり、ネック部22をさらに細くしても、十分な強度を得られる。これらの樹脂は、1種単独で用いられてもよいし、2種以上が組み合わされて用いられてもよい。なお、「主成分」は、50質量%以上を含有していてもよいことをいい、70質量%以上がより好ましい。 The
Examples of the first resin include resins having a flexural modulus (JIS K7203) of 500 MPa or more and 3000 MPa or less. For example, polyester such as PBT, polyethylene terephthalate (PET), polycyclohexylenedimethylene terephthalate (PCT); POM Polyolefins such as PP and polyethylene (PE); polystyrene (PS); acrylonitrile / butadiene / styrene resin (ABS), cellulose propionate (CP), polyarylate, polycarbonate, acrylonitrile / styrene copolymer resin (AS), etc. Can be mentioned. Among them, a resin mainly composed of one or more selected from polyester and POM is preferable, polyester and POM are more preferable, and PBT and POM are further preferable. Since polyester and POM have higher rigidity, sufficient strength can be obtained even if the
第二の樹脂は、第一の樹脂と異なればよく、曲げ弾性率(JIS K7203)が500MPa以上3000MPa以下である樹脂が挙げられ、例えば、PBT、ポリエチレンテレフタレート(PET)、ポリシクロへキシレンジメチレンテレフタレート(PCT)等のポリエステル;POM;PP、ポリエチレン(PE)等のポリオレフィン;ポリスチレン(PS);アクリロニトリル・ブタジエン・スチレン樹脂(ABS)、セルロースプロピオネート(CP)、ポリアリレート、ポリカーボネート、アクリロニトリル・スチレン共重合樹脂(AS)等が挙げられる。中でも、ポリオレフィンが好ましく、PPがより好ましい。ポリオレフィンであれば、被覆部8をエラストマー樹脂で構成した場合、第二の部材6と被覆部8との接着性を高められる。これらの樹脂は、1種単独で用いられてもよいし、2種以上が組み合わされて用いられてもよい。 The
The second resin may be different from the first resin, and examples thereof include a resin having a flexural modulus (JIS K7203) of 500 MPa to 3000 MPa, such as PBT, polyethylene terephthalate (PET), polycyclohexylenedimethylene terephthalate. Polyester such as (PCT); Polyolefin such as POM; PP and polyethylene (PE); Polystyrene (PS); Acrylonitrile butadiene styrene resin (ABS), Cellulose propionate (CP), Polyarylate, Polycarbonate, Acrylonitrile styrene Copolymer resin (AS) etc. are mentioned. Among these, polyolefin is preferable, and PP is more preferable. If it is polyolefin, when the coating |
また、例えば、第一の樹脂を非透光性の樹脂とし、第二の樹脂を透光性の樹脂としてもよい。このような組み合わせとすることで、ハンドル体2の意匠のバリエーションを多様化できる。 In this embodiment, as a combination of the first resin and the second resin, the first resin is a resin mainly composed of one or more selected from polyester and POM, and the second resin is a polyolefin. The first resin is preferably PBT or POM, and the second resin is PP. By adopting such a combination, the
Further, for example, the first resin may be a non-translucent resin and the second resin may be a translucent resin. By setting it as such a combination, the design variation of the
ショア硬度とは、圧子を用いて、くぼみ深さに対応して変化する試験荷重を試料に負荷し、生じたくぼみ深さhから求めた値であり、JIS K 7215に記載の方法により測定する。
軟質樹脂としては、例えば、エラストマー(例えば、オレフィン系エラストマー、スチレン系エラストマー、ポリエステル系エラストマー、ポリウレタン系熱可塑性エラストマー等)、シリコーンが挙げられる。 The covering
The shore hardness is a value obtained by applying a test load that changes in accordance with the indentation depth to the sample using an indenter and determining the resulting indentation depth h, and is measured by the method described in JIS K7215. .
Examples of the soft resin include elastomers (for example, olefin elastomers, styrene elastomers, polyester elastomers, polyurethane thermoplastic elastomers, etc.) and silicone.
ヘッド部10の幅は、特に限定されず、例えば、7~13mmが好ましく、8~12mmがより好ましい。上記下限値以上であれば、毛束14を植設する面積を十分に確保でき、上記上限値以下であれば、口腔内での操作性をより高められる。ヘッド部10の幅とは、ヘッド部10の植毛面を上にして歯ブラシを静置した際の水平方向かつハンドル体2の延在方向に対し垂直方向の最大の長さである。
ヘッド部10の長さは、特に限定されず、例えば、10~30mmが好ましく、12~28mmがより好ましい。上記下限値以上であれば、毛束14を植設する面積を十分に確保でき、上記上限値以下であれば、口腔内での操作性をより高められる。ヘッド部10の長さとは、ヘッド部10の先端から、毛束14のうち最も後端側にある毛束の後端までの距離であり、ヘッド部10の先端から、毛束14のうち最も後端側にある毛束の後端までの距離は、例えば15~30mmが好ましい。
ヘッド部10の厚さは、材質等を勘案して決定でき、例えば、2~6mmが好ましく、2.5~4mmがより好ましい。上記下限値以上であれば、ヘッド部10の強度をより高められ、上記上限値以下であれば、口腔内での操作性をより高められる。
ネック部22の太さは、材質等を勘案して決定でき、ネック部22の最も細い箇所において、3~6mmが好ましく、3.5~4.5mmがより好ましい。上記下限値以上であれば、ネック部22の強度をより高められ、上記上限値以下であれば、口腔内での操作性をより高められる。 The length of the
The width of the
The length of the
The thickness of the
The thickness of the
植毛面11から毛束14の先端までの長さ(毛丈)は、毛束14に求める毛腰等を勘案して決定でき、例えば、6~13mmとされる。
全ての毛束14は同じ毛丈であってもよいし、相互に異なっていてもよい。 The
The length (hair length) from the flocked
All the hair bundles 14 may have the same hair length or may be different from each other.
これらの樹脂材料は、1種単独で又は2種以上を組み合わせて用いることができる。
また、用毛としては、芯部と前記芯部の外側に設けられた少なくとも1層以上の鞘部とを有する多重芯構造を有するポリエステル製用毛が挙げられる。 The material of the hair is, for example, polyamide such as 6-12 nylon (6-12NY), 6-10 nylon (6-10NY), PET, PBT, polytrimethylene terephthalate (PTT), polyethylene naphthalate (PEN), Examples thereof include polyesters such as polybutylene naphthalate (PBN), polyolefins such as PP, elastomer resins such as polyolefin elastomers and styrene elastomers.
These resin materials can be used singly or in combination of two or more.
Examples of the bristle include polyester bristle having a multi-core structure having a core part and at least one or more sheath parts provided outside the core part.
インサート成形は、第一の部材4を第一の金型内に配置し、ここに第二の樹脂を射出して、基体を得る。第一の部材4は、例えば、従来公知の射出成形等により得られる。使用される第一の金型は、内部に第一の部材4を配置した状態で、第二の部材6に応じた形状のキャビティが形成されている。第一の部材4を第一の金型内に配置すると、第一の嵌合部44及び第二の嵌合部46の突端が第一の金型の内面に当接するため、第二の樹脂を射出した際に、第一の部材4がずれにくい。このため、第一の部材4を覆う第二の部材6の厚さが、所望の厚さとなり、第一の部材4と第二の部材6とをより強固に接合できる。得られた基体は、第一の部材4に形成された嵌合部が第二の部材6の嵌合孔に嵌合した状態となる。 In the manufacturing method of the
In insert molding, the
第二の金型内に射出された軟質樹脂は、貫通孔48及び68を充填し、被覆本体80と滑止部82とを形成する。 Next, the obtained base is placed in the second mold, and a soft resin is injected to obtain the
The soft resin injected into the second mold fills the through
加えて、本実施形態のハンドル体は、第一の部材に嵌合部が形成されているため、第二の部材から第一の部材が抜けにくい。
さらに、嵌合部が嵌合孔を貫通する、即ち、第二の金型の内面に嵌合部が当接するため、第二の樹脂を射出した際に、第一の部材がずれたりせず、第一の部材と第二の部材とをより強固に接合できる。 As described above, according to the handle body of the present embodiment, the first member and the second member made of different resins are provided and have sufficient strength. For this reason, for example, even if the first member is composed of high-rigidity PBT or POM and the second member is composed of PP having high adhesiveness to the elastomer resin, the first member and the second member Since it is difficult to separate, a handle body with high strength can be obtained.
In addition, in the handle body of the present embodiment, since the fitting portion is formed on the first member, it is difficult for the first member to come off from the second member.
Furthermore, since the fitting portion penetrates the fitting hole, that is, the fitting portion contacts the inner surface of the second mold, the first member does not shift when the second resin is injected. The first member and the second member can be joined more firmly.
上述の実施形態では、第一の部材と第二の部材との境界、すなわち、第一の部材と第二の部材が外表面(表に部材が見える面)において接する箇所がネック部の基端に位置しているが、本発明はこれに限定されず、境界がヘッド部の基端に位置していてもよいし、境界がネック部の途中に位置していてもよいし、境界が把持部の途中に位置していてもよい。即ち、延在部は、露出していなくてもよいし、ネック部の一部を形成してもよいし、把持部の一部を形成してもよい。 The present invention is not limited to the above-described embodiment.
In the above-described embodiment, the boundary between the first member and the second member, that is, the place where the first member and the second member are in contact with each other on the outer surface (the surface where the member is visible on the front surface) is the base end of the neck portion. However, the present invention is not limited to this, and the boundary may be positioned at the base end of the head portion, the boundary may be positioned in the middle of the neck portion, or the boundary is gripped. It may be located in the middle of the part. That is, the extending part may not be exposed, may form a part of the neck part, or may form a part of the grip part.
また、被覆部は、歯ブラシのデザインや機能に応じて適宜決定される。
例えば、図5のハンドル体102のように、第二の部材を一部覆う被覆部108を備えてもよい。ハンドル体102は、ヘッド部110とハンドル部120とを備え、ハンドル部120はネック部122と把持部124とを備える。第一の部材104は、ヘッド部110とネック部122とを形成し、第二の部材106と被覆部108とは、把持部124を形成する。この被覆部108には、把持部124の側方の各々に膨出する円弧状の膨出部180が2箇所形成されている。
膨出部180は、所望するデザインや用途などによって、膨出部の個数や第二部材からの膨出の程度を決定できる。
あるいは、図6のハンドル体202のような被覆部208を備えてもよい。ハンドル体202は、ヘッド部210とハンドル部220とを備え、ハンドル部220は、ネック部222と把持部224とを備える。第一の部材204は、ヘッド部210とネック部222とを形成し、第二の部材206と被覆部208とは、ハンドル部220を形成する。被覆部208は、把持部224の一方の側面を覆い、他方の側面を開放するように形成され、平面視において、被覆部208と第二の部材206が露出する部分との境界282が斜めに形成されている。加えて、把持部224におけるネック部222の基端寄りには、植毛面211側(即ち、表面)に、第二の部材206が平面視楕円形に露出した露出部280が形成されている。 In the above-described embodiment, the covering portion is formed so as to cover a part of the second member. However, the present invention is not limited to this, and the covering portion may not be formed. The entire second member may be covered, or the covering portion may cover the first member.
Moreover, a coating | coated part is suitably determined according to the design and function of a toothbrush.
For example, like the
The bulging
Or you may provide the coating |
2、102、202 ハンドル体
4、104、204 第一の部材
6、106、206 第二の部材
8、108、208 被覆部
10、110、210 ヘッド部
14 毛束
20、120、220 ハンドル部
40 延設部
44 第一の嵌合部
46 第二の嵌合部
64 第一の嵌合孔
66 第二の嵌合孔 DESCRIPTION OF
Claims (7)
- ハンドル部と、前記ハンドル部の先端に設けられたヘッド部とを備える歯ブラシのハンドル体において、
第一の樹脂で構成された第一の部材と、前記第一の樹脂とは異なる第二の樹脂で構成された第二の部材とを備え、
前記第一の部材は、前記ヘッド部と、前記ヘッド部から前記ハンドル部に向かって延びる延設部とを備え、
前記第二の部材は、前記ハンドル部の少なくとも一部を形成し、
前記延設部の一部は、前記第二の部材に埋設され、
前記延設部には、その延設方向に交わる方向に突出する嵌合部が形成され、
前記嵌合部は、前記第二の部材に形成された嵌合孔と嵌合していることを特徴とする、歯ブラシ用のハンドル体。 In a handle body of a toothbrush comprising a handle portion and a head portion provided at the tip of the handle portion,
A first member composed of a first resin and a second member composed of a second resin different from the first resin;
The first member includes the head portion and an extending portion extending from the head portion toward the handle portion,
The second member forms at least a part of the handle portion,
A part of the extended portion is embedded in the second member,
The extending portion is formed with a fitting portion protruding in a direction intersecting with the extending direction,
The handle body for a toothbrush, wherein the fitting portion is fitted with a fitting hole formed in the second member. - 前記嵌合部は、前記嵌合孔を貫通していることを特徴とする、請求項1に記載の歯ブラシ用のハンドル体。 The handle body for a toothbrush according to claim 1, wherein the fitting portion penetrates the fitting hole.
- 前記第一の樹脂は、ポリエステル及びポリアセタールから選ばれる少なくとも1種を主成分とすることを特徴とする、請求項1又は2に記載の歯ブラシ用のハンドル体。 The handle body for a toothbrush according to claim 1 or 2, wherein the first resin contains at least one selected from polyester and polyacetal as a main component.
- 前記第二の樹脂は、ポリオレフィンであることを特徴とする、請求項1~3のいずれか1項に記載の歯ブラシ用のハンドル体。 The handle body for a toothbrush according to any one of claims 1 to 3, wherein the second resin is polyolefin.
- 前記第二の部材は、前記第二の樹脂よりも軟質な樹脂で被覆されていることを特徴とする、請求項1~4のいずれか1項に記載の歯ブラシ用のハンドル体。 The handle body for a toothbrush according to any one of claims 1 to 4, wherein the second member is coated with a softer resin than the second resin.
- 請求項1~5のいずれか1項に記載の歯ブラシ用のハンドル体に、毛束が植設されてなることを特徴とする歯ブラシ。 A toothbrush characterized in that a bristle bundle is implanted in the toothbrush handle body according to any one of claims 1 to 5.
- 前記第一の部材を金型内に配置し、金型内に前記第二の樹脂を射出することを特徴とする、請求項1~5のいずれか1項に記載の歯ブラシ用のハンドル体の製造方法。 The toothbrush handle body according to any one of claims 1 to 5, wherein the first member is disposed in a mold, and the second resin is injected into the mold. Production method.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190274417A1 (en) * | 2016-10-28 | 2019-09-12 | Lion Corporation | Toothbrush and method for manufacturing toothbrush |
CN113208262A (en) * | 2016-10-28 | 2021-08-06 | 狮王株式会社 | Tooth brush |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106102514A (en) * | 2014-03-14 | 2016-11-09 | 狮王株式会社 | Toothbrush shank body, toothbrush and the manufacture method of toothbrush shank body |
JP6869634B2 (en) * | 2015-09-25 | 2021-05-12 | ライオン株式会社 | toothbrush |
MY194154A (en) * | 2016-03-09 | 2022-11-16 | Lion Corp | Toothbrush |
JP2017176219A (en) * | 2016-03-28 | 2017-10-05 | ライオン株式会社 | Toothbrush handle body, and toothbrush |
JP7086002B2 (en) * | 2016-10-28 | 2022-06-17 | ライオン株式会社 | toothbrush |
JP6983568B2 (en) * | 2017-07-31 | 2021-12-17 | ライオン株式会社 | toothbrush |
JP2019030583A (en) * | 2017-08-09 | 2019-02-28 | ライオン株式会社 | toothbrush |
KR102519050B1 (en) * | 2020-10-08 | 2023-04-05 | 김혁수 | Toothbrush Having Replaceable Toothbrush Head |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002034659A (en) * | 2000-07-19 | 2002-02-05 | Lion Corp | Handle of toothbrush and its manufacturing method |
JP2002291534A (en) * | 2001-04-03 | 2002-10-08 | Temuko Kk | Toothbrush |
JP2010201197A (en) * | 2010-06-14 | 2010-09-16 | Lion Corp | Toothbrush |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5875510A (en) * | 1996-09-27 | 1999-03-02 | Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. | Replaceable head toothbrush |
US6502272B1 (en) * | 2000-05-24 | 2003-01-07 | Colgate-Palmolive Company | Replaceable head toothbrush providing controlled brushing pressure |
KR101165264B1 (en) | 2003-12-24 | 2012-07-19 | 라이온 가부시키가이샤 | Toothbrush |
JP5530776B2 (en) * | 2010-03-24 | 2014-06-25 | ライオン株式会社 | toothbrush |
-
2013
- 2013-10-02 JP JP2013207708A patent/JP6170802B2/en not_active Expired - Fee Related
-
2014
- 2014-09-24 KR KR1020167007681A patent/KR20160065829A/en not_active IP Right Cessation
- 2014-09-24 CN CN201480049958.8A patent/CN105530833B/en not_active Expired - Fee Related
- 2014-09-24 WO PCT/JP2014/075212 patent/WO2015050019A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002034659A (en) * | 2000-07-19 | 2002-02-05 | Lion Corp | Handle of toothbrush and its manufacturing method |
JP2002291534A (en) * | 2001-04-03 | 2002-10-08 | Temuko Kk | Toothbrush |
JP2010201197A (en) * | 2010-06-14 | 2010-09-16 | Lion Corp | Toothbrush |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190274417A1 (en) * | 2016-10-28 | 2019-09-12 | Lion Corporation | Toothbrush and method for manufacturing toothbrush |
US11013310B2 (en) * | 2016-10-28 | 2021-05-25 | Lion Corporation | Toothbrush and method for manufacturing toothbrush |
CN113208262A (en) * | 2016-10-28 | 2021-08-06 | 狮王株式会社 | Tooth brush |
CN113208262B (en) * | 2016-10-28 | 2023-01-13 | 狮王株式会社 | Tooth brush |
Also Published As
Publication number | Publication date |
---|---|
JP6170802B2 (en) | 2017-07-26 |
CN105530833A (en) | 2016-04-27 |
CN105530833B (en) | 2018-04-17 |
KR20160065829A (en) | 2016-06-09 |
JP2015070925A (en) | 2015-04-16 |
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