CN103957744A - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- CN103957744A CN103957744A CN201280053280.1A CN201280053280A CN103957744A CN 103957744 A CN103957744 A CN 103957744A CN 201280053280 A CN201280053280 A CN 201280053280A CN 103957744 A CN103957744 A CN 103957744A
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- CN
- China
- Prior art keywords
- neck
- cross
- section profile
- roughly
- toothbrush
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
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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
Abstract
The present invention provides a toothbrush which exhibits a high cleaning effect even if the neck of the toothbrush is thinned. The present invention relates to a toothbrush which comprises: a head having bristle bundles embedded therein; a neck extended from the head; and a handle extended from the neck, and the toothbrush is configured so that the profile of a cross-section of the neck changes as the neck extends from the head side toward the handle side. The profile of a cross-section of the neck taken on the head side has a substantially circular shape. The profile of the substantially circular cross-section changes to a substantially square shape as the neck extends toward the handle side, and the sides of the substantially square shape consist of a front surface, a rear surface, and side surfaces. Also, the profile of the substantially square cross-section changes to a substantially polygonal shape as the neck extends toward the handle side. The substantially polygonal shape has apexes on both side surfaces and is flat in the thickness direction.
Description
Technical field
The present invention relates to a kind of toothbrush.
The application advocates priority based on December 7th, 2011 in No. 2011-267939, the Patent of Japanese publication, quotes its content at this.
Background technology
General toothbrush, have: handle body and plant a mao portion, described handle body has: implant the head of pieces, the handle portion of being controlled and connect the neck of head and handle portion while using, described in plant mao portion and the pieces of bristle be implanted in to planting on hair side of head and form.
As the toothbrush of oral cavity tool for cleaning inside, in order to improve the cleaning effect as the function needing most, various inventions are carried out.In order to improve cleaning effect, importantly, make to plant mao portion and clean object position butt, with the suitable pressure of scrubbing, sweeping is carried out in clean object position.If plant mao portion not with suitably butt of clean object position, can not fully remove the tooth dirt in occlusal surface, between cog and the neck portion etc. that are attached to the flank of tooth, molar.In addition, while cleaning in to oral cavity, if it is too small to scrub pressure, be difficult to make tooth dirt especially the tooth dirt of the narrow part such as between cog portion and neck portion drop, if it is excessive to scrub pressure, likely damage gum and tooth.
For toothbrush, general arrangement, the shape of bristle and the cut pile shape of pieces etc. to pieces design so that plant mao portion suitably with clean object position butt.
In recent years, surging along with health consciousness, also requires further to improve cleaning effect for toothbrush, for this demand, has proposed toothbrush that the pieces of different-diameter is combined or the toothbrush that the pieces of different staple lengths is combined.
In addition, utilize the design of handle body, attempt improving cleaning effect.
For example, so a kind of brush has been proposed: in the entirety of neck, by brush portion plant cant to thickness make with respect to the opposing party round rectangle or the ellipse (for example patent documentation 1) that numerical value is little.Adopt the invention of patent documentation 1,, realize relaxing and scrub pressure so that it is soft bending by neck is run business into particular one.
Or, so a kind of toothbrush has been proposed: by the thickest profile partly contacting with thumb of assurance portion, make the hexagon (for example patent documentation 2) of given shape.Adopt the invention of patent documentation 2, grip the thumb and the face that described hexagon contacts of hand by change, determine the angle that the border of tooth and gum or the flank of tooth and bristles top form, thereby efficiently to cleaning in oral cavity.
Patent documentation 1: Japanese Patent Laid-Open 2011-36628 communique
Patent documentation 2: the fair 1-41306 communique of Japan Patent utility model
Invent problem to be solved
But, make the suitably clean object position butt all with the flank of tooth, occlusal surface, between cog portion and the neck portion etc. of molar of mao portion of planting, effectively way is that neck is run business into particular one, and improves in intraoral operability.
But, if only neck is run business into particular one improve the operability at intraoral toothbrush, the undercapacity of handle body, the deflection of neck is excessive, and cleaning effect easily declines.By the resin that adopts high strength (more than bending modulus 2000MPa), handle body is formed, although can prevent handle body bending or cracking, but can not control the deflection of neck well, existing cannot be by the suitable problem that pressure carries out sweeping to clean object position of scrubbing.
Summary of the invention
Therefore, the object of the invention is to, even if provide a kind of, neck is run business into particular one, also high toothbrush of cleaning effect.
For solving the means of problem
The present inventors have carried out research with keen determination, found that: the cross section profile that makes neck from the head side along with being changed to specific shape to handle portion side, limit the deflection direction of neck by stage, and make to plant mao portion suitably with clean object position butt, clean with the suitable pressure of scrubbing, improve cleaning effect, thereby completed the present invention.
, one form of toothbrush of the present invention is, have: implant the head that has pieces, extend the neck being arranged on described head, and extension is arranged on the handle portion on described neck, the cross section profile of described neck from described head side along with changing to described handle portion side, this toothbrush is characterised in that, the cross section profile of the described head side of described neck is the cross section profile of circular, the cross section profile of described circular is along with becoming roughly tetragonal cross section profile to described handle portion side, described roughly quadrangle is by surface, the back side and side form each limit, further, described roughly tetragonal cross section profile is along with becoming roughly polygonal cross section profile to described handle portion side, described roughly polygonal top is positioned at two sides and is flat on thickness direction.
Be preferably, described roughly polygonal any one side flat on thickness direction is formed by the surface of described neck, the limit relative with described any one side formed by the back side of described neck, and described neck is preferably, from described head side along with to described handle portion side and hole enlargement.
, the present invention is as follows.
(1) a kind of toothbrush, have: implanting has the head of pieces, extends and be arranged on neck on described head, and extends the handle portion being arranged on described neck, the cross section profile of described neck from described head side along with changing to described handle portion side, the feature of this toothbrush is
The cross section profile of the described head side of described neck is the cross section profile of circular, the cross section profile of described circular is along with becoming roughly tetragonal cross section profile to described handle portion side, described roughly quadrangle forms each limit by surface, the back side and side, further, described roughly tetragonal cross section profile is along with becoming roughly polygonal cross section profile to described handle portion side, and described roughly polygonal top is positioned at two sides and is flat on thickness direction.
(2) toothbrush as described in (1), is characterized in, described roughly polygonal any one side flat on thickness direction is formed by the surface of described neck, and the limit relative with described any one side formed by the back side of described neck.
(3) toothbrush as described in (1) or (2), is characterized in, described neck from described head side along with to described handle portion side and hole enlargement.
The effect of invention
Adopt a form of toothbrush of the present invention, due to the cross section profile of the head side of the neck cross section profile that is circular, the cross section profile of described circular is along with becoming roughly tetragonal cross section profile to handle portion side, described roughly quadrangle forms each limit by surface, the back side and side, further, described roughly tetragonal cross section profile is along with becoming roughly polygonal cross section profile to described handle portion side, described roughly polygonal top is positioned at two sides and is flat on thickness direction, therefore, even neck is run business into particular one, also can improve cleaning effect.
Adopt a form of toothbrush of the present invention, because described roughly polygonal any one side flat on thickness direction is formed by the surface of described neck, the limit relative with described any one side formed by the back side of described neck, therefore, can more relax and scrub pressure.
Adopt a form of toothbrush of the present invention, due to described neck from described head along with to described handle portion and hole enlargement, therefore, more flexibly deflection of neck, thereby it is more suitable to make to scrub pressure.
Brief description of the drawings
Figure 1A is the top view of the toothbrush of one embodiment of the present invention.
Figure 1B is the side view of the toothbrush of one embodiment of the present invention.
Fig. 2 A is the A-A cutaway view of Figure 1B.
Fig. 2 B is the B-B cutaway view of Figure 1B.
Fig. 2 C is the C-C cutaway view of Figure 1B.
Symbol description
1 toothbrush
2 heads
4 necks
6 handle portion
10 handle bodies
40 rounded portions
42 quadrangle portions
44 polygon portions
50 tops
52 tops
54 is following
Detailed description of the invention
Below with reference to Fig. 1～2, the toothbrush of one embodiment of the present invention is described.
The toothbrush 1 of Figure 1A and Figure 1B has: the roughly handle body 10 of strip and be located at mao portion (not shown) of planting on head 2, described handle body 10 is formed with: while overlooking, be roughly tetragonal head 2, extend the neck 4 being arranged on described head 2 and extend the handle portion 6 being arranged on described neck 4.
The material of handle body 10 can consider that the desired rigidity of handle body 10 and mechanical property etc. decide, for example bending modulus (JIS K7203) resin (being sometimes referred to as hard resin below) more than 500MPa preferably, resin more than bending modulus 2000MPa is better.The upper limit of the bending modulus to handle body 10 resin used is not particularly limited, for example, be 3000MPa.As resin more than bending modulus 500MPa, for example can enumerate: polypropylene (PP), PETG (PET), polybutylene terephthalate (PBT) (PBT), poly terephthalic acid cyclohexalene dimethylene ester resin (PCT), polyacetals (POM), PEN (PEN), polystyrene (PS), acrylonitrile-butadiene-styrene resin (ABS), cellulose propionate (CP), polyaryl, Merlon, acrylonitrile-styrene copolymerized resin (AS) etc., wherein preferably bending modulus is POM more than 2000MPa, PEN and PBT etc.By using resin more than bending modulus 2000MPa, neck 4 is run business into particular one, intraoral operability can be improved, and the breakage of handle body 10 can be prevented.
In addition, part or all of the handle portion 6 of handle body 10 covered by soft resin.Covered by soft resin by part or all of handle portion 6, thereby the identical sense of the hand while improving user's gripping handle portion 6 can prevent that the finger of controlling from skidding in addition.
As soft resin, preferably for example can enumerate: the resin of Durometer A hardness below 90, the resin of Durometer A hardness 10～40 is better.As such soft resin, for example can enumerate: elastomer resin and the silicone etc. of ethylene octane copolymer, phenylethylene elastomer, polyester elastomer, polyurethanes thermoplastic elastomer (TPE) etc.
The length L 1 of handle body 10 can consider that operability etc. decides, for example, be 150～200mm.
Head 2, taking the length direction of handle body 10 as length direction, is made the top of neck 4 sides while overlooking by the roughly tetragonal tabular of curve corner cut, is formed with multiple pores 22 of planting on the face (planting hair side) 20 of a side.This is planted and in pore 22, plants the pieces of being pricked Shu Ercheng by bristle, and forms mao portion of planting being made up of multiple pieces.
In this manual, using with plant hair side 20 parallel and with the orthogonal direction of the length direction of handle body 10 as width, using the direction orthogonal with planting hair side 20 as thickness direction.In addition, will plant a side that hair side 20 faces as surface, using the opposition side of planting the side that hair side 20 faces as the back side.
The large I of head 2 is considered to decide in intraoral operability etc.
The width W 1 of head 2, declines in intraoral operability if excessive, and if the pieces quantity of planting hair too small too tails off, and cleaning effect is easily weakened.Therefore, width W 1 is for example 5～13mm.
The thickness T 1 of head 2 is thinner, more improves in intraoral operability, if but excessively thin, the intensity of head 2 is easily not enough.Therefore, thickness T 1 can consider that material of handle body 10 etc. decides, for example 1.5～5mm preferably, and 2～3mm is better.
The length L 3 of head 2, if long, easily infringement is in intraoral operability, and if the pieces quantity of planting hair too short too tails off, and cleaning effect is easily weakened.Therefore, length L 3 suitably determines in the scope of 10～26mm.
The shape of planting pore 22 is not particularly limited, can enumerates: the just polygon such as circle or circular, the triangle such as oval or quadrangle etc.
The quantity of planting pore 22 is not particularly limited, for example, be 10～60.
The diameter of planting pore 22 decides according to the rugosity of desired pieces, for example, be 1～3mm.
The spread geometry of planting pore 22 is not particularly limited, and can be any spread geometries such as so-called chessboard is netted or staggered.
As forming the bristle of pieces, can enumerate: the bristle (taper hair) that diminishes gradually to its diameter of hair top, the essentially identical bristle of external diameter (linear hair) except the rounded portions on hair top.
The material of bristle, for example can adopt: the synthetic resin material such as the polyolefin of polyester, the PP etc. of the polyamide such as 6-12 nylon, 6-10 nylon, PET, PBT, PTT (PTT), PEN, PEN (PBN) etc., olefin-based elastomer, styrene series elastomer.These resin materials, the one that both can be used alone, also two or more use capable of being combined.
In addition, bristle is multiple cored structure also, and it has core and is located at least sheath portion more than one deck in described core outside.
Cross section profile to bristle is not particularly limited, and for example can enumerate: clover shape, the clover shape of four leaves etc. of the positive polygons such as circle, triangle, quadrangle, pentagon and hexagon such as circular, oval, star, three leaves.
Rugosity to bristle is not particularly limited, and is circular occasion at cross section profile, for example, be 3～11mil (1mil=1/1000inch=0.025mm).Pieces both can form with the bristle of whole identical rugosity, the also bristle of two or more different rugosity capable of being combined.
Length to bristle is not particularly limited, for example, be 6～12mm.
Handle portion 6 is shaped as: to handle body rear end 7 undergauge gradually, then keep arbitrary diameter until handle body rear end 7 with border (the being neck rear end) P2 of handle portion 6 from neck 4.The cross section profile of handle portion 6 is and roughly similar shape of the cross section profile of neck described later rear end P2.
Neck 4 connects head 2 and handle portion 6, makes from the head 2 sides along with to handle portion 6 sides and the shape of hole enlargement.
The head 2 of neck 4 is with the sectional area of border (the being neck top) P1 of neck 4 for minimum, and the sectional area of neck rear end P2 is maximum.Sectional area in the P1 of neck top can consider that the material of handle body 10 decides, and for example, is that elastic modelling quantity is the occasion of resin more than 2000MPa, preferably 7～12.6mm in material
2.If more than above-mentioned lower limit, the intensity of neck 4 is just enough, if below above-mentioned higher limit, can further improve in intraoral operability.
The sectional area of neck rear end P2 can consider that the material of handle body 10 decides, for example, be that elastic modelling quantity is the occasion of resin more than 2000MPa, preferably 60～150mm in material
2.
If in above-mentioned scope, can suitably limit the deflection of neck 4, thereby can clean clean object position with the suitable pressure of scrubbing.
The terminal of the curve of shape formation corner cut when neck top P1 is overlooking of head 2 (, the position that the bending direction of the curve of formation corner cut changes).In addition, neck rear end P2 is the position that the expanding of neck 4 in the time overlooking finishes.
The cross section profile of neck 4 from the head 2 sides along with changing to handle portion 6 sides.Cross section profile refers to the profile in the cross section orthogonal with length direction in this manual.
As shown in Fig. 1～2, the neck 4 of present embodiment, the cross section profile of its neck top P1 is circular (comprises part that neck top P1 is circular using cross section profile as rounded portions 40), the cross section profile of this circular is along with become roughly tetragonal cross section profile (using cross section profile for tetragonal part is roughly as quadrangle portion 42) to handle portion 6 sides, further, roughly tetragonal cross section profile is along with become roughly hexagonal cross section profile (comprise neck rear end P2 using cross section profile for hexagonal part is roughly as polygon portion 44) to handle portion 6 sides.From polygon portion 44 to handle body rear end 7, be formed with crest line 46,46 in the two sides of handle body 10.
Rounded portions 40, quadrangle portion 42 and polygon portion 44 are that the cross section profile of neck 4 ground that gradually changes forms continuously.Roughly quadrangle is to comprise the concept of top by the shape of curve corner cut, and hexagon is to comprise the concept of top by the shape of curve corner cut.In addition, the symbol Q in Fig. 2 A～Fig. 2 C, is the center line of the cross section profile of rounded portions 40.
As shown in Figure 2 A, the cross section profile of rounded portions 40 is for roughly positive circular.Roughly positive circle refer to the ratio that thickness t 1/ width w1 represents be 0.95～1.05.Define in the same manner described circular with positive circle roughly.The cross section profile of rounded portions 40 is for roughly positive circular, and deflection direction is thus difficult to restricted, and the direction of planting hair side 20 changes according to clean object position, can further improve cleaning effect.
Thickness t 1 can consider that the material of handle body 10 decides, for example, be that elastic modelling quantity is the occasion of resin more than 2000MPa in material, preferably 3.0～4.0mm, and 3.0～3.5mm is better.If more than above-mentioned lower limit, can moderately limit deflection, if below above-mentioned higher limit, can further improve in intraoral operability.
Width w1 is identical with thickness t 1.
As shown in Figure 2 B, the cross section profile of quadrangle portion 42 for roughly square, this roughly foursquare each limit be to be formed by surface, the back side and the side of neck 4.Roughly square refer to the ratio that thickness t 2/ width w2 represents be 0.95～1.05.Because the cross section profile of quadrangle portion 42 is square roughly, and each limit form by surface, the back side and the side of neck 4, and therefore, deflection direction is limited in thickness direction or the width of neck 4.
Thickness t 2 can consider that the material of handle body 10 decides, for example, be that elastic modelling quantity is the occasion of resin more than 2000MPa in material, preferably 3.0～6.0mm, and 4.0～5.0mm is better.If more than above-mentioned lower limit, can fully limit deflection direction, if below above-mentioned higher limit, can further improve in intraoral operability.
Width w2 is identical with thickness t 2.
As shown in Figure 2 C, the cross section profile of polygon portion 44 is hexagon roughly.This is hexagonal being shaped as roughly, and its top 50,50 is positioned at the two sides of neck 4, and this top 50 is connected and forms the part of crest line 46.Described roughly hexagonal shape is, its top 52 is formed by the surface of neck 4, and relative with top 52 following 54 are formed by the back side of neck 4, and thickness t 3 is shorter than width w3,, makes shape flat on thickness direction that is.By this cross section profile is made to by polygon portion 44, thereby because the crest line 46 that is formed at side is difficult to deflection on width, thereby and owing to being that flat shape is easily carried out deflection at thickness direction on thickness direction.In addition, polygon portion 44 is because its surface and the back side are plane, and therefore the deflection of thickness direction is difficult to restricted.
Can consider that the material of handle body 10 decides by the ratio that thickness t 3/ width w3 represents, for example, preferably 0.50～0.95,0.70～0.90 is better.
Thickness t 3 can consider that the material of handle body 10 decides, and for example, is that elastic modelling quantity is the occasion of resin more than 2000MPa in material, preferably 6～12mm, and 8～10mm is better.If more than above-mentioned lower limit, can fully limit deflection direction, if below above-mentioned higher limit, more flexibly deflection of neck 4, can make to scrub pressure more suitable.
Width w3 can consider that the material of handle body 10 decides, and for example, is that elastic modelling quantity is the occasion of resin more than 2000MPa in material, preferably 8～20mm, and 10～15mm is better.If more than above-mentioned lower limit, the fully deflection of Max. Clearance _M. direction, if below above-mentioned higher limit, can further improve operability.
The length of neck 4 can consider that the length L 3 of head decides, and for example, preferably makes the length of 70～100mm from handle body top 9 to the length L 2 of neck rear end P2.If more than the above-mentioned lower limit of length L 2, can further improve in intraoral operability, if below above-mentioned higher limit, can suitably limit the deflection of neck 4.
In addition, the length L 4 on the top (crest line top) 47 from handle body top 9 to crest line 46 is preferably more than 60mm, and 65mm is better above.The upper limit of length L 4 is for example 90mm.If more than the above-mentioned lower limit of length L 4, can prevent that crest line 46 from contacting with in oral cavity, thereby can prevent the inharmonious sense producing while cleaning.If below the above-mentioned higher limit of length L 4, can suitably limit the deflection of neck 4.
The toothbrush 1 of present embodiment, manufactures according to the manufacture method of known toothbrush in the past.
For example, hard resin is injected in mould to shaping handle body 10.Then, implant pieces planting on hair side 20 of obtained handle body 10, obtain thus toothbrush 1.As implanting the method for pieces, for example can enumerate: ordinary lines formula is planted hair, hot smelting and coating process and interior die pressing etc., ordinary lines formula is planted hair and is: by folding into two pieces and hammer into and plant in pore 22 and implant pieces being sandwiched in ordinary lines therebetween; Hot smelting and coating process is: the lower end of pieces is pressed into be fixed on to form and plants in the molten resin of mao portion; Interior die pressing is: the lower end of pieces is heated and formed after molten mass, molten resin is injected to mould and be shaped and plant a mao portion.
Below, the using method of the toothbrush 1 to present embodiment describes.
First, handle portion 6 is controlled.The form of controlling handle portion 6 without particular limitation of, can be palm-type clinch, can be also pen type clinch.Conventionally, clean on one side in order on one side pressure to be put on to object position, any controlling in form, all thumb etc. is pressed near the P2 of neck rear end handle portion 6 is controlled.
Then, head 2 is inserted in oral cavity, with near the thumb push handle portion 6 of pressing polygon portion 44, make to plant mao portion on one side and slide on clean object position on one side.The power being applied in handle portion 6 is delivered to head 2 by neck 4, then 2 is delivered to mao portion of planting from the head, plants thus mao portion and pressure is applied on clean object position and cleans on one side on one side.Now, because the cross section profile of rounded portions 40 is made roughly positive circle, therefore, deflection direction is unrestricted.Therefore, rounded portions 40 is according to the shape at clean object position and deflection, make to plant mao portion suitably with clean object position butt.
Here, in the time that the overall deflection direction of neck 4 is unrestricted, being delivered to the just disappearance of power of neck 4 from handle portion 6, or the undue deflection of neck 4, thereby can not clean with the suitable pressure of scrubbing.
In the present embodiment, polygon portion 44, is formed at the crest line 46 of two sides and the restriction of flat cross section profile on thickness direction, is difficult to deflection at width, and in the easy deflection of thickness direction.Therefore, be applied to the power in handle portion 6, be restricted to the power of thickness direction by polygon portion 44, and be delivered in quadrangle portion 42.The cross section profile of quadrangle portion 42 is for roughly square, and this is roughly formed by surface, the back side and the side of neck 4 on foursquare each limit, and deflection direction is restricted at thickness direction and width.Therefore the power that, is delivered to quadrangle portion 42 can too not be passed to rounded portions 40 with disappearing.
In addition, due to the cross section profile of neck 4 from neck top P1 along be varied to roughly positive circular, roughly square and the flat roughly hexagon of thickness direction to neck rear end P2, therefore, deflection direction is restricted gradually to neck rear end P2 from neck top P1.Therefore,, even neck 4 is run business into particular one, neck 4 entirety can be too not soft yet, and make to plant mao portion and clean object position butt with suitable state, and be delivered to head 2 by forming the suitable power of scrubbing pressure.
In addition, the toothbrush 1 of present embodiment, owing to making from neck rear end P2 along with the shape attenuating to neck top P1, therefore, the flexibly deflection of neck 4 entirety, more suitably relax the pressure being applied on clean object position, thereby it is more suitable to make to scrub pressure.
As mentioned above, adopt the toothbrush of present embodiment, because the cross section profile of the head side of neck is circular, the cross section profile of circular is along with becoming roughly tetragonal cross section profile to handle portion side, described roughly quadrangle forms each limit by surface, the back side and side, further, roughly tetragonal cross section profile is along with becoming roughly polygonal profile to handle portion side, described roughly polygonal top is positioned on two sides and thickness direction flat, therefore, even neck is run business into particular one, also can bring into play higher cleaning effect.
The invention is not restricted to above-mentioned embodiment.
In the above-described embodiment, the cross section profile of rounded portions is for roughly positive circular, but the present invention is not limited to this, and the cross section profile of rounded portions is also oval.The cross section profile of rounded portions can consider that function of toothbrush etc. suitably sets.For example, in order to obtain the more soft toothbrush of tactility, preferably the cross section profile of rounded portions is made to shape flat on thickness direction.By making shape flat on thickness direction, can make to scrub pressure and more relax.
In the above-described embodiment, the cross section profile of quadrangle portion is square roughly, but the present invention is not limited to this, also rectangle of the cross section profile of quadrangle portion.The cross section profile of quadrangle portion can consider that function of toothbrush etc. suitably sets.For example, in order to obtain the more soft toothbrush of tactility, preferably the cross section profile of quadrangle portion is made to shape flat on thickness direction.By making shape flat on thickness direction, can make to scrub pressure and more relax.
In addition, in the above-described embodiment, the cross section profile of quadrangle portion is made the shape that is formed with the corner cut of curve at top, but the present invention is not limited to this, also can not form corner cut at top.But the viewpoint of the inharmonious sense that when clean from relaxing, quadrangle portion contact lip etc. produces, is preferably formed with the corner cut of curve at top.
In the above-described embodiment, the cross section profile of polygon portion is hexagon roughly, but the present invention is not limited to this, but the cross section profile of polygon portion also roughly pentagon, roughly octagon etc. is except the roughly polygon hexagon roughly.Roughly pentagon, roughly octagon etc. roughly polygon and quadrangle roughly and roughly hexagon comprise in the same manner the concept of top by curve corner cut shape.
In the above-described embodiment, the cross section profile of polygon portion makes its top not be positioned at surface and (ground, the back side be not formed with crest line, plane is made at surface and the back side), but the present invention is not limited to this, also can be on surface and back side both sides or any one party be formed with crest line.But from easily making polygon portion only in the viewpoint of thickness direction deflection, preferably making the surface of polygon portion and the back side is plane.
In the above-described embodiment, the cross section profile on neck top is for roughly positive circular, form rounded portions in the region that comprises neck top, but the present invention is not limited to this, for example, also the cross section profile on neck top can be made to circular shape in addition, form rounded portions in the position of leaving neck top.But, from make mao portion of planting more suitably with the viewpoint of clean object position butt, preferably the cross section profile on neck top is made to circular.
In the above-described embodiment, the cross section profile of neck rear end is roughly hexagon flat on thickness direction, form polygon portion, but the present invention is not limited to this in the region that comprises neck rear end, also can form polygon portion in the position of leaving neck rear end.But from more suitably limiting the viewpoint of neck deflection, the cross section profile of neck rear end is that roughly hexagon flat on thickness direction is better.
In the above-described embodiment, neck is along with to neck rear end and the structure of hole enlargement from neck top, but the present invention is not limited to this, neck both can have been made from neck top along with to neck rear end and the structure of undergauge, and also can make from neck top to neck rear end is roughly equal diameter.Roughly equal diameter, is the description that permission diameter has-15%～15% left-right deviation, this deviation preferably-10%～10%, and-5%～5% is better.But, from more suitably relaxing the viewpoint of scrubbing pressure, preferably neck from neck top along with to neck rear end and the structure of hole enlargement.
In the above-described embodiment, handle portion is thinner than neck rear end, but the present invention is not limited to this, and handle portion is with respect to the neck rear end also structure of hole enlargement.
In addition, in the above-described embodiment, the cross section profile of handle portion is and roughly similar shape of the cross section profile of neck rear end, but the present invention is not limited to this, and the shape of handle portion is any shape also.
In the above-described embodiment, plant a mao portion and only formed by pieces, but the present invention is not limited to this, for example, also can erect the parts of formed by soft resin cylindric, flat column etc.
Embodiment
Illustrate that embodiment describes the present invention in detail, but the present invention is not limited to following record below.
(embodiment 1～6)
According to the specification of table 1, make the toothbrush identical with Figure 1A and Figure 1B.The toothbrush of each example is, the length L 1:185mm of handle body, and handle body top is to the length L 2:75mm of neck rear end, the length L 3:29mm of head, the width w1:9.7mm of head.On head, be provided with mao portion of planting, this is planted mao portion the bristle (PBT system) of pricking 23 rugosity 7.5mil of bundle is implanted to this pieces as pieces and by mao figure of planting shown in Figure 1A.
For obtained toothbrush, operability in the intensity that fractures, oral cavity and the sense that coincide are evaluated, in table 1, represent its result.
A-A cross section in table is identical with the A-A cross section of Figure 1B, is the cross section on neck top, and the C-C cross section in table is identical with the C-C cross section of Figure 1B, is the cross section of neck rear end.B-B cross section in table is the cross section of the 60mm position from handle body top to handle body rear end.
(evaluation method)
The < intensity > that fractures
Make to plant hair side towards vertical upwards, control neck rear end with fixer, vertical down applies the load of 2kg to planting hair side, using the occasion of not finding neck and head generation be full of cracks, cracking and whiting equivalent damage as " A ", using the occasion of finding neck or head generation be full of cracks, cracking or whiting equivalent damage as " C ".
Operability > in < oral cavity
10 examiners are to cleaning in oral cavity, and the operability of the toothbrush to each example is evaluated.In seven stages that are evaluated as 1 point～7 points of operability, more feel that operability is good, with regard to high mark.10 examiners' average mark is categorized as to following determinating reference, judges operability in oral cavity.
" determinating reference "
S: be equally divided into more than 5 points.
A: be equally divided into more than 4 points, be less than 5 points.
B: be equally divided into more than 3 points, be less than 4 points.
C: be equally divided into and be less than 3 points.
< coincide and feels >
10 examiners are to cleaning in oral cavity, and the identical sense of the toothbrush to each example is evaluated according to following metewand.10 examiners' average mark is categorized as to following determinating reference, and judgement coincide and feels.The evaluation of sense of coincideing is higher, plant mao portion with suitable state with clean object position butt and to scrub pressure suitable, can say that cleaning effect is higher.
" metewand "
3 points: with intraoral concavo-convex laminating, obviously feel the thoughts and feelings with appropriate elastic force and pieces butt.
2 points: with intraoral concavo-convex laminating, feel the thoughts and feelings with appropriate elastic force and pieces butt.
1 point: with intraoral concavo-convex laminating, not too feel the thoughts and feelings with appropriate elastic force and pieces butt.
0 point: with intraoral concavo-convex laminating, do not feel the thoughts and feelings with suitable elastic force and pieces butt.
" determinating reference "
S: be equally divided into more than 2.5 points.
A: be equally divided into more than 2 points, be less than 2.5 points.
B: be equally divided into more than 1.5 points, be less than 2 points.
C: be equally divided into and be less than 1.5 points.
As the result of table 1, A-A cross section is made to the roughly orbicular experimental example 1～2 of diameter 3～3.5mm, identical sense is all good.
From experimental example 1～2 and experimental example 4～5 relatively can be judged as, in the occasion that is formed handle body by resin more than bending modulus 2000MPa, by diameter 3.0～4.0mm is made in A-A cross section, can further improve the sense that coincide.
On the other hand, making the shape of neck is " C " from the identical sense that roughly positive circle is changed to oval-shaped experimental example 3 from neck top successively.
Can be judged as from these results, by application the present invention, even neck is run business into particular one, also can improve the sense that coincide, improve cleaning effect.
Practicality in industry
Adopt a form of toothbrush of the present invention, because the cross section profile of the head side of neck is circular, the cross section profile of described circular is along with becoming roughly tetragonal cross section profile to described handle portion, described roughly quadrangle is by surface, the back side and side form each limit, further, described roughly tetragonal cross section profile is along with becoming roughly polygonal profile to described handle portion, described roughly polygonal top is positioned at two sides and is flat on thickness direction, therefore, even neck is run business into particular one, also can improve cleaning effect, therefore be industrially very useful.
Adopt toothbrush of the present invention, owing to being formed by the surface of described neck on the flat roughly polygonal any limit of described thickness direction, the limit relative with described any limit formed by the back side of described neck, therefore, can further relax and scrub pressure.
Adopt toothbrush of the present invention, due to described neck from described head along with to described handle portion and hole enlargement, therefore, more flexibly deflection of neck, can make to scrub pressure more suitable, is industrially therefore very useful.
Claims (3)
1. a toothbrush, have: implanting has the head of pieces, extends and be arranged on neck on described head, and extends the handle portion being arranged on described neck, the cross section profile of described neck from described head side along with changing to described handle portion side, this toothbrush is characterised in that
The cross section profile of the described head side of described neck is the cross section profile of circular, the cross section profile of described circular is along with becoming roughly tetragonal cross section profile to described handle portion side, described roughly quadrangle forms each limit by surface, the back side and side, further, described roughly tetragonal cross section profile is along with becoming roughly polygonal cross section profile to described handle portion side, and described roughly polygonal top is positioned at two sides and is flat on thickness direction.
2. toothbrush as claimed in claim 1, is characterized in that, described roughly polygonal any one side flat on thickness direction is formed by the surface of described neck, and the limit relative with described any one side formed by the back side of described neck.
3. toothbrush as claimed in claim 1 or 2, is characterized in that, described neck from described head side along with to described handle portion side and hole enlargement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-267939 | 2011-12-07 | ||
| JP2011267939A JP5806922B2 (en) | 2011-12-07 | 2011-12-07 | toothbrush |
| PCT/JP2012/081695 WO2013085006A1 (en) | 2011-12-07 | 2012-12-06 | Toothbrush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103957744A true CN103957744A (en) | 2014-07-30 |
| CN103957744B CN103957744B (en) | 2016-01-27 |
Family
ID=48574361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280053280.1A Active CN103957744B (en) | 2011-12-07 | 2012-12-06 | Toothbrush |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5806922B2 (en) |
| KR (1) | KR101971310B1 (en) |
| CN (1) | CN103957744B (en) |
| TW (1) | TWI520696B (en) |
| WO (1) | WO2013085006A1 (en) |
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| CN109152469A (en) * | 2016-06-02 | 2019-01-04 | 狮王株式会社 | toothbrush |
| CN109890247A (en) * | 2016-10-28 | 2019-06-14 | 狮王株式会社 | Toothbrush |
| CN109890249A (en) * | 2016-10-28 | 2019-06-14 | 狮王株式会社 | Toothbrush |
| CN110520010A (en) * | 2017-04-10 | 2019-11-29 | 吉列有限责任公司 | Oral care implement and method for manufacturing such oral care implement |
| CN110545692A (en) * | 2017-04-10 | 2019-12-06 | 吉列有限责任公司 | Oral care implement and method for manufacturing such oral care implement |
| CN110801097A (en) * | 2016-03-09 | 2020-02-18 | 狮王株式会社 | Tooth brush |
| CN111031850A (en) * | 2017-08-09 | 2020-04-17 | 狮王株式会社 | Tooth brush |
| CN111265000A (en) * | 2016-03-09 | 2020-06-12 | 狮王株式会社 | Tooth brush |
| CN111297042A (en) * | 2016-03-09 | 2020-06-19 | 狮王株式会社 | Tooth brush |
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| 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 |
| JP2016010511A (en) * | 2014-06-27 | 2016-01-21 | 小林製薬株式会社 | toothbrush |
| CN106659289A (en) * | 2014-09-01 | 2017-05-10 | 狮王株式会社 | Toothbrush |
| JP6691423B2 (en) * | 2016-04-08 | 2020-04-28 | 利弘 岩▲崎▼ | Toothbrush |
| JP6914024B2 (en) * | 2016-10-28 | 2021-08-04 | ライオン株式会社 | Toothbrush and toothbrush manufacturing method |
| JP7050427B2 (en) * | 2017-05-26 | 2022-04-08 | 花王株式会社 | toothbrush |
| JP6983568B2 (en) * | 2017-07-31 | 2021-12-17 | ライオン株式会社 | toothbrush |
| JP7190872B2 (en) * | 2018-11-08 | 2022-12-16 | ライオン株式会社 | toothbrush |
| JP2020185447A (en) * | 2020-08-07 | 2020-11-19 | 小林製薬株式会社 | toothbrush |
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| JP2011036628A (en) | 2009-08-17 | 2011-02-24 | Tokio Nakata | Neck of toothbrush |
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- 2012-12-06 CN CN201280053280.1A patent/CN103957744B/en active Active
- 2012-12-06 WO PCT/JP2012/081695 patent/WO2013085006A1/en active Application Filing
- 2012-12-06 KR KR1020147012644A patent/KR101971310B1/en active IP Right Grant
- 2012-12-07 TW TW101146079A patent/TWI520696B/en active
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| CN1207654A (en) * | 1996-01-10 | 1999-02-10 | 史密斯克莱·比奇曼保健品公司 | Toothbrush |
| CN2287430Y (en) * | 1997-01-23 | 1998-08-12 | 王诚实 | Tooth-brush |
| FR2768908A1 (en) * | 1997-10-01 | 1999-04-02 | David Ohnona | Toothbrush with bristles implanted in circle |
| JP2002028028A (en) * | 2000-07-14 | 2002-01-29 | Lion Corp | Toothbrush handle |
| JP2008005967A (en) * | 2006-06-28 | 2008-01-17 | Univ Nihon | Toothbrush |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265000A (en) * | 2016-03-09 | 2020-06-12 | 狮王株式会社 | Tooth brush |
| CN111265000B (en) * | 2016-03-09 | 2021-10-29 | 狮王株式会社 | Tooth brush |
| CN111297042B (en) * | 2016-03-09 | 2021-07-06 | 狮王株式会社 | Tooth brush |
| CN110801097B (en) * | 2016-03-09 | 2021-06-08 | 狮王株式会社 | Tooth brush |
| CN110801097A (en) * | 2016-03-09 | 2020-02-18 | 狮王株式会社 | Tooth brush |
| CN111297042A (en) * | 2016-03-09 | 2020-06-19 | 狮王株式会社 | Tooth brush |
| CN109152469A (en) * | 2016-06-02 | 2019-01-04 | 狮王株式会社 | toothbrush |
| CN113208262A (en) * | 2016-10-28 | 2021-08-06 | 狮王株式会社 | Tooth brush |
| CN109890249B (en) * | 2016-10-28 | 2021-05-11 | 狮王株式会社 | Tooth brush |
| CN109890249A (en) * | 2016-10-28 | 2019-06-14 | 狮王株式会社 | Toothbrush |
| CN109890247A (en) * | 2016-10-28 | 2019-06-14 | 狮王株式会社 | Toothbrush |
| CN113995224A (en) * | 2016-10-28 | 2022-02-01 | 狮王株式会社 | Tooth brush |
| CN113995223A (en) * | 2016-10-28 | 2022-02-01 | 狮王株式会社 | Tooth brush |
| CN110545692A (en) * | 2017-04-10 | 2019-12-06 | 吉列有限责任公司 | Oral care implement and method for manufacturing such oral care implement |
| CN110520010A (en) * | 2017-04-10 | 2019-11-29 | 吉列有限责任公司 | Oral care implement and method for manufacturing such oral care implement |
| CN111031850A (en) * | 2017-08-09 | 2020-04-17 | 狮王株式会社 | Tooth brush |
| CN111031850B (en) * | 2017-08-09 | 2022-04-26 | 狮王株式会社 | Tooth brush |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140107191A (en) | 2014-09-04 |
| TW201328632A (en) | 2013-07-16 |
| JP2013118944A (en) | 2013-06-17 |
| JP5806922B2 (en) | 2015-11-10 |
| KR101971310B1 (en) | 2019-04-22 |
| WO2013085006A1 (en) | 2013-06-13 |
| TWI520696B (en) | 2016-02-11 |
| CN103957744B (en) | 2016-01-27 |
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