CN110169647A - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- CN110169647A CN110169647A CN201910470158.8A CN201910470158A CN110169647A CN 110169647 A CN110169647 A CN 110169647A CN 201910470158 A CN201910470158 A CN 201910470158A CN 110169647 A CN110169647 A CN 110169647A
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- China
- Prior art keywords
- head
- neck
- deflection
- handlebody
- 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
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
- A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
- A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
-
- 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
-
- 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
- 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
Landscapes
- Brushes (AREA)
Abstract
There is provided that a kind of sweeping forces are more excellent and the superior toothbrush of use feeling.Toothbrush (1), it is characterized in that, have handlebody (10), the handlebody has head (2), the neck (4) for extending to the head (2) setting, the handle portion (6) for extending to the neck (4) setting, it is implanted with pieces on the plant hair side on head (2), the product of the deflection B of the deflection A and neck (4) on the head (2) measured by specific measuring method is 0.8~10.
Description
The application be the applying date be on 03 09th, 2017, application No. is 201780016029.0, entitled " toothbrushes "
The divisional application of application for a patent for invention.
Technical field
The present invention relates to toothbrushes.
This application claims the preferential of Japanese patent application the 2016-045368th based on March 9th, 2016 in Japanese publication
Power, and it is hereby incorporated its content.
Background technique
Saprodontia, periodontosis prevention in, by using the intraoral bacterial plaque removing of toothbrush bring to be important.With
It is past, effect is removed in order to improve bacterial plaque, it is thus proposed that the scheme of excessively various toothbrushes.For example, the head by making toothbrush
Thinning, neck attenuates, and bristle can be made to reach the molar depths (the throat side of molar) that common toothbrush is difficult to reach.Patent document
1, which describes a kind of head, is thinned, the excellent toothbrush of operability in oral cavity.
On the other hand, in the people for having periodontal disease, by using the spot of toothbrush bring oral pocket to remove or gingival massage
It is critically important.The spot of oral pocket is removed or gingival massage, the appropriateness flexure of bristle are necessary, so far, it is thus proposed that mistake
The intensive toothbrush of the thinner bristle of diameter or toothbrush using the superfine hair in front end etc..
Existing technical literature
Patent document
Patent document 1: Japanese Patent Laid-Open 7-143914 bulletin
Summary of the invention
[subject to be solved by the invention]
But in order to improve the sweeping forces for the depths etc. for being difficult to the molar reached to common toothbrush, if only allowing toothbrush
Head it is thinning, then the quality of the folding strength on head or the strength reduction that falls off of pieces, toothbrush reduces.Further, since making head
Portion is thinning, so head is easy flexure when using, pieces, which scatters, waits the use feeling of users impaired.Therefore, it is to have that head is thinning
Limitation.
In addition, making the contact sense to gum become good, to improve use feeling by making bristle flexure become larger.But if bristle
When bending excessive, can generate bristle and enter the entering of oral pocket is reduced, and sweeping forces reduce, and hair, which scatters, becomes serious, toothbrush it is resistance to
The problems such as long property reduces.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide sweeping forces, more excellent and use feeling is more excellent
Toothbrush.
[means to solve the problem]
The present invention has following structure.
[1] a kind of toothbrush, which is characterized in that have handlebody, the neck that the handlebody has head, extends to head setting
Portion and the handle portion for extending to neck setting, are implanted with pieces on the plant hair side on the head, pass through following methods (α) and measure
The head deflection A and by following methods (β) measurement described neck deflection B product (A × B) be 0.8~
10。
Method (α): making the plant top of the hair side towards vertical direction on the head, will be between the head and the neck
The position on boundary fixed in the state of the handlebody front end height as altitude datum, in the stationary state
Under again in the head relative to plant hair portion long axis direction length, with it is described plant hair portion front end at a distance of 10 ± 3% position
The hammer for setting place's suspention 200g, shift amount of the handlebody front end after 10 seconds in the height from the altitude datum is (single
Deflection A of the position for mm) as the head.
Method (β): making the plant top of the hair side towards vertical direction on the head, will be between the neck and the handle portion
Boundary position fixed in the state of the handlebody front end height as altitude datum, in the fixing shape
Under state again in the head relative to the long axis direction length for planting hair portion, with the front end for planting hair portion at a distance of 50 ± 3%
The hammer for suspending 200g at position in midair, by shift amount of the handlebody front end in the height from the altitude datum after 10 seconds
The deflection B of (unit mm) as the neck.
[2] toothbrush according to [1], which is characterized in that the product of the deflection B of the deflection A and neck on the head
It is 2~10.
[3] toothbrush according to [1] or [2], which is characterized in that pass through the flexure on the head of following methods (α ') measurement
The product for measuring the deflection B of A ' and the neck is 2.5~12.
Method (α '): making the plant top of the hair side towards vertical direction on the head, will from the head and the neck it
Between boundary position rise to the handle portion side offset 10mm position fixed in the state of the handlebody before
The height at end is long relative to the long axis direction for planting hair portion in the head again under the stationary state as altitude datum
Degree suspends the hammer of 200g in midair with the front end for planting hair portion, by the handlebody front end after 10 seconds at 10 ± 3% position
Deflection A ' of the shift amount (unit mm) as the head in height from the altitude datum.
[4] a kind of toothbrush, which is characterized in that have handlebody, the neck that the handlebody has head, extends to head setting
Portion and the handle portion for extending to neck setting, are implanted with pieces on the plant hair side on the head, pass through following methods (α ') and survey
The deflection A ' on the fixed head and the product for passing through the deflection B of the neck of following methods (β) measurement are 2.5~12.
Method (α '): making the plant top of the hair side towards vertical direction on the head, will from the head and the neck it
Between boundary position rise to the handle portion side offset 10mm position fixed in the state of the handlebody before
The height at end is long relative to the long axis direction for planting hair portion in the head again under the stationary state as altitude datum
Degree suspends the hammer of 200g in midair with the front end for planting hair portion, by the handlebody front end after 10 seconds at 10 ± 3% position
Deflection A ' of the shift amount (unit mm) as the head in height from the altitude datum.
Method (β): making the plant top of the hair side towards vertical direction on the head, will be between the neck and the handle portion
Boundary position fixed in the state of the handlebody front end height as altitude datum, in the fixing shape
Under state again in the head relative to the long axis direction length for planting hair portion, with the front end for planting hair portion at a distance of 50 ± 3%
The hammer for suspending 200g at position in midair, by shift amount of the handlebody front end in the height from the altitude datum after 10 seconds
The deflection B of (unit mm) as the neck.
[5] toothbrush according to any one of [1]~[4], which is characterized in that the head with a thickness of 2.0~
4.0mm。
[6] toothbrush according to any one of [1]~[5], which is characterized in that the head with a thickness of 2.0~
4.0mm, and a lesser side is 3.0~4.5mm in the minimum widith and minimum thickness of the neck.
[7] toothbrush according to [6], which is characterized in that the minimum widith of the neck is 3.0~4.5mm.
[8] toothbrush according to any one of [1]~[7], which is characterized in that constitute the hair front end of the bristle of the pieces
Intensity is 1.7~3.0N.
[9] toothbrush according to any one of [1]~[8], which is characterized in that the material of the handlebody is polypropylene tree
Rouge.
[10] toothbrush according to any one of [1]~[9], which is characterized in that in the method (β), stationary phase for
The long axis direction length of the handlebody, with the handlebody front end at a distance of 42.4% position.
[11] toothbrush according to any one of [1]~[3] or [5]~[10], which is characterized in that the deflection A and
In the deflection B, A < B.
[12] toothbrush according to any one of [1]~[3] or [5]~[11], which is characterized in that the deflection A and
The difference (B-A) of the deflection B meets 1≤()≤4 B-A.
[13] toothbrush according to any one of [1]~[3] or [5]~[12], which is characterized in that the deflection A is
0.5~3.0.
[14] toothbrush according to any one of [1]~[13], which is characterized in that the deflection B is 2.1~5.0.
[15] toothbrush according to any one of [1]~[3] or [5]~[14], which is characterized in that the material of the handlebody
Matter is polyacetal resin, and the product of the deflection B of the deflection A and neck on the head is 2~10, the thickness on the head
For 2.0~4.0mm, and a lesser side is 3.0~4.5mm in the minimum widith and minimum thickness of the neck.
[16] toothbrush according to any one of [1]~[15], which is characterized in that be implanted with pieces on the plant hair side on head
Mode be flat wire (flat plate) formula plant hair.
[The effect of invention]
Toothbrush of the invention, sweeping forces are more excellent, and use feeling is more excellent.
Detailed description of the invention
[Figure 1A] one embodiment of the present invention relates to toothbrush plan view.
[Figure 1B] one embodiment of the present invention relates to toothbrush lateral plan.
[Fig. 2A] illustrates the figure of the measuring method of the deflection on head.
[Fig. 2 B] illustrates the figure of the measuring method of the deflection on head.
[Fig. 3] illustrates the figure of the measuring method of mao front end intensity.
[symbol description]
1 toothbrush
2 heads
4 necks
6 handle portions
10 handlebodys
Specific embodiment
[the 1st invention]
Hereinafter, illustrating the embodiment of the toothbrush of the 1st invention in conjunction with Figure 1A and Figure 1B.
The toothbrush 1 of Figure 1A and Figure 1B, have be in plan view approximate quadrangle head 2 and extend to the head 2 setting
Neck 4 and extend to the neck 4 setting handle portion 6 (hereinafter, head 2, neck 4 and handle portion 6 are collectively referred to as handlebody 10).
On the head 2, it is equipped with and plants hair portion (not shown).
Handlebody 10 is integrally molded so as long ruler-like as a whole, for example, can be obtained using resin as material by injection moulding.
As the material of handlebody, acrylic resin (PP) can be enumerated, polyacetal resin (POM), polystyrene resin (PS), gathered
Ethylene terephthalate resin (PET), polybutylene terephthalate (PBT) resin (PBT), acronitrile-butadiene-styrene tree
Rouge (ABS), polyarylate resin, polycarbonate resin, resin acrylonitrile styrene resin (AS), polyester resin (PCTA) etc..Wherein, base
The consideration such as angle high in intensity, mouldability is excellent, preferably PP, POM, PBT, more preferable PP, POM.In addition, based on can be with lower
From the point of view of cost preferably obtains effect of the invention, the particularly preferred PP of the material of handlebody.
Above-mentioned resin can be used alone with a kind, can also be applied in combination with two or more.
The bending elastic modulus of the material of handlebody, preferably 1200~3000MPa, more preferable 1500~3000MPa.Handlebody
If the bending elastic modulus of material within the above range when, the deflection on head can be set as to suitable value, obtain clear in oral cavity
Sweep the raising of the raising of power and operability, the use feeling of user.In addition, the bending elastic modulus foundation of the material of handlebody
JIS K7171 measurement.
In addition, part or all of handle portion 6 can be covered by soft resin in handlebody 10.By by one of handle portion 6
Divide or all covered with soft resin, to can further improve gripability when user grasps handle portion 6.As described soft
Matter resin can be lifted for example, polyolefin elastomer, styrene series elastomer, polyester-based elastomer, polyurethane series thermoplastic elastic
The elastomer resins such as body, silicone resin etc..
The length L1 of handlebody 10 is contemplated that operability etc. to determine, may be, for example, 150~200mm.
Head 2 is set are as follows: with the length direction of handlebody 10 to grow, 4 tops are by curve corner cut in plan view
The tabular of approximate quadrangle.On one face (planting hair side 20) on head 2, it is formed with multiple plant pores 22.In the plant pore 22
In be implanted with the pieces that bristle is done up, formed include multi beam pieces plant hair portion.
In addition, plan view refers to the meaning of the toothbrush from the plant hair side side on head in this specification.With flat with plant hair side 20
Row and the direction to intersect vertically with the length direction of handlebody 10 are width, are thickness with the direction to intersect vertically with plant hair side 20.Separately
Outside, to plant side that hair side 20 is faced as surface, to plant the opposite side for the side that hair side 20 is faced as the back side.
Head 2, in plan view, with broadening, then prolonged with same widths in the direction of the width from front end 9 towards neck 4
It stretches, next narrows in the direction of the width, until its boundary P1 between neck 4.
In present embodiment, boundary P1 are as follows: the curve of the corner cut from neck 4 is formed in the plan view shape on head 2
Terminal, that is, form the changed position of bending direction of the curve of corner cut.That is, the boundary P1 on head and neck are as follows: plane
In head in view from curve or straight line R1, changing the curve to broaden for width, perhaps straight line or variation are width phase
The position of same straight line.Two edge that the width for the canted section that the curve or straight line R1 are formed from neck narrows.In addition,
Neck is towards handle portion direction and in the case where toothbrush that width broadens in plan view, boundary P1 in plan view with head
With the smallest position consistency of width in neck.
But the position for having such as head and neck the boundary P1 as the toothbrush that same widths are formed sometimes is difficult to
Determining situation.In this case, will relative to length L1, with the front end 9 of handlebody 10 at a distance of 17.5% position (for example,
In the case that length L1 is 180mm, with the front end 9 of handlebody 10 at a distance of the position of 31.5mm) it is used as boundary P1.
The size on head 2 is contemplated that in oral cavity operability etc. to determine.
The maximum width W1 on head 2, if when excessive, operability is reduced in oral cavity, if when too small, planting the quantity of the pieces of hair
Become very few, sweeping forces are easy impaired.Therefore, width W1 can be such as 5~13mm.
Thickness the T1 preferably 2.0~4.0mm, more preferable 2.0~3.5mm, further preferred 2.5~3.2mm on head 2.Thickness T1
If when more than the lower limit value, it is easy to ensure that sufficient intensity in head 2.Further, it is easy to be formed in a thickness direction
Pore 22 is planted, is easy for pieces to be securely implanted into pore 22, is easy that pieces is inhibited to fall off.If in addition, thickness T1 is on described
When below limit value, operability is further increased in the oral cavity of toothbrush 1.Further, bristle can be made to reach the oral cavities such as molar depths
Inner edge corner angle, intraoral spot remove effect and further increase.
In addition, T1 refers to the minimum thickness on head 2 in the unfixed situation of the thickness on head 2.
The length L2 on head 2, if when too long, operability is easy impaired in oral cavity, if when too short, the quantity for planting mao mao's beam becomes
Must be very few, it cleans effect and is easy to be damaged.Therefore, length L2 can suitably be determined in the range of such as 10~40mm.
The shape for planting pore 22, is not particularly limited, it is more can to enumerate the circles such as positive round or ellipse, triangle or quadrangle etc.
Side shape etc..
The quantity for planting pore 22, is not particularly limited, and can be such as 10~60.
The diameter for planting pore 22, can determine according to the thickness of required pieces, can be such as 1~3mm.
The arrangement pattern for planting pore 22, is not particularly limited, and can be the arbitrarily arrangement pattern such as so-called checkerboard, staggered.
As the bristle for constituting pieces, can enumerate towards hair front end and bristle (taper hair) that gradually its diameter becomes smaller,
The essentially identical bristle of outer diameter (the straight type hair) other than the globular part of hair front end, hair front end are doctor-like, spherical, front end bifurcated
The bristle of the shapes such as shape.
As bristle, taper hair is preferred.By making bristle taper hair, the spot that oral pocket etc. can be improved removes effect.
Further, the massage effect of gum improves, and use feeling further increases.
As the material of bristle, can lift for example, the polyamide such as 6-12 nylon, 6-10 nylon, PET, PBT, poly- terephthaldehyde
The polyester, polypropylene such as acid propylene glycol ester (PTT), polyethylene naphthalate (PEN), polybutylene naphthalate (PBN)
The synthetic resin materials such as equal polyolefin, olefin-based elastomer, styrene series elastomer.These resin materials can individually be made with a kind
With can also be applied in combination with two or more.
In addition, bristle can be the multiple cored structure with core and at least 1 layer or more of sheath portion being arranged on the outside of the core.
The cross-sectional shape of bristle, preferably circular, but it is not limited to circular, it can be set according to the purpose purposes of toothbrush 1
It is set to arbitrary shape.For example, may be set to ellipse, polygon (for example, triangle, quadrangle, pentagon, hexagon etc..),
Abnormity (for example, star, the cloverleaf pattern of three pieces leaf, bunge bedstraw herb shape of four leaves etc.) etc..
The thickness of each bristle, is not particularly limited, for example, section be round situation in, preferably 4~8mil (1mil
=1/1000inch=0.025mm).If when more than the lower limit value, the autonomous property erect is improved, and cleaning property further increases,
If when below the upper limit value, the bristle rigidity appropriateness of pieces 11, contact feels better.
The bristle for constituting pieces 11, can be with all identical thicknesses, or the bristle of two or more different thicknesses combines.
The staple length of bristle, for instance, it is preferred that adult's used time is 8mm~15mm, children's used time is 6mm~12mm.In addition,
From the point of view of usability in oral cavity or use feeling, it is preferable that the diameter of the bristle of selection is smaller, gets over the staple length of bristle
It is short.In addition, sense can be swept according to use feeling, brush, clean the purpose of effect, durability, more different bristles of thickness are applied in combination.
Neck 4 connects head 2 and handle portion 6.
In present embodiment, neck 4 is extended, then expanding, Zhi Daoqi from boundary P1 to handle portion 6 with roughly the same diameter
With the boundary P2 of handle portion 6.The boundary P2 are as follows: the expanding terminal of neck 4, that is, in plan view, form the portion of broadening
The changed position of bending direction of the curve of two edge of the part of the terminal or formation broadening of the straight line for two edge being divided to.Figure 1A
In, the boundary P2 of neck and handle portion is: the straight line of two edge of the part to broaden in neck from formation width in plan view
Or curve R2 rises, and changes the position of the curve become narrow gradually for width.
But the position for having such as neck and handle portion the boundary P2 as the toothbrush that same widths are formed sometimes is difficult
With determining situation.In this case, will relative to length L1, with the front end 9 of handlebody 10 at a distance of 42.2% position (example
Such as, in the case that length L1 is 180mm, with the front end 9 of handlebody 10 at a distance of the position of 76.0mm) it is used as boundary P2.
Width the W2 preferably 3.0~4.5mm, more preferable 3.0~4.2mm of neck 4.If width W2 is more than the lower limit value
When, angularly considered based on folding it is easy to ensure that sufficient intensity in neck 4.Further, toothbrush 1 will not become excessively soft
It is weak, it is easy to get by moderately bending the good use feeling of bring.If in addition, when width W2 is below the upper limit value, toothbrush 1
Operability improves in oral cavity.Further, bristle can be made to reach intraoral side corner angle, intraoral spot removes effect
It further increases.
In addition, width W2 refers to the minimum widith of neck 4 in the unfixed situation of width of neck 4.
Thickness the T2 preferably 3.0~4.5mm, more preferable 3.0~4.2mm of neck 4.If thickness T2 is more than the lower limit value
When, angularly considered based on folding it is easy to ensure that sufficient intensity in neck 4.Further, toothbrush 1 will not become excessively soft
It is weak, it is easy to get by moderately bending the good use feeling of bring.If in addition, when thickness T2 is below the upper limit value, toothbrush 1
Operability improves in oral cavity.Further, bristle can be made to reach intraoral side corner angle, intraoral spot removes effect
It further increases.
In addition, thickness T2 refers to the minimum thickness of neck 4 in the unfixed situation of thickness of neck 4.
The minimum diameter of neck 4, preferably 3.0~4.5mm, more preferable 3.0~4.2mm.If the minimum diameter of neck 4 is in institute
When stating lower limit value or more, angularly considered based on folding it is easy to ensure that sufficient intensity in neck 4.Further, toothbrush 1 is not
It can become excessively weak, be easy to get by the good use feeling of flexure bring of appropriateness.In addition, if the minimum diameter of neck 4 exists
When below the upper limit value, operability is improved in the oral cavity of toothbrush 1.Further, can make bristle reach it is intraoral while while
Angle angle, intraoral spot remove effect and further increase.
In addition, the minimum diameter of neck 4 refers to, the value of a lesser side, the i.e. minimum of neck 4 in above-mentioned width W2 and thickness T2
A smaller side in width and minimum thickness.It is highly preferred that in neck, minimum thickness is identical with minimum widith or minimum widith
Smaller than minimum thickness, minimum widith is 3.0~4.5mm.
The length L3 of neck 4, it is contemplated that the length L2 on head etc. is determined, for example, the length of 30~90mm, more preferable 30
~60mm.If length L3 is more than above-mentioned lower limit value, it is easy that bristle is made to reach intraoral side corner angle, intraoral spot
Effect is removed to further increase.If length L3 is below above-mentioned upper limit value, operability is further increased in the oral cavity of toothbrush 1.
(the deflection A on head 2)
The deflection A on head, (α) is measured by the following method.
Method (α):
Plant top of the hair side towards vertical direction for making head carries out the position on the boundary between the head and neck of toothbrush
The height of handlebody front end in the state of fixed is as altitude datum.Further, by the position of the boundary P1 into
It has gone in the state of fixing, relative to the long axis direction length for planting hair portion in head, the front end with plant hair portion is at a distance of 10 ± 3%
Position at suspend the hammer of 200g in midair, by shift amount of the handlebody front end after 10 seconds in the height from altitude datum, (unit is
Mm) the deflection A as head.
In addition, " the long axis direction length for planting hair portion " refers to, the plant positioned at front end side when head is observed in plan view
The distance between the rear end of the front end of pore and the plant pore positioned at last end side.
For example, in plan view the part from head of neck it is of same size in the case where, the neck from the beginning
In the part that portion rises, width is measured while slowly changing position towards head, part of same size and width are started
Position at the variation of the part to become larger is as boundary P1.In addition, in plan view the part from head of neck width
In the case that degree close to head with narrowing, in neck from the part head, slowly change position towards head on one side
It sets and measures width on one side, using the smallest position of width as boundary P1.
In the present invention, the deflection A on head 2 is according to following measurement.
As shown in Figure 2 A, toothbrush 1 is used at the position (boundary P1) of neck most thin portion in a manner of making to plant hair side 20 upward
Jig 100 is fixed.At this point, using the height of the front end 9 of handlebody 10 as altitude datum H0。
Then, as shown in Figure 2 B, the height of the front end 9 of the handlebody 10 after the hammer 102 of the position of S suspention 200g, measurement 10 seconds
Degree, highly regard this as H1.The S is: relative to plant Mao minister axis direction, with plant hair portion front end at a distance of 10 ± 3% position.
For example, S is with the front end at a distance of the position of 2.0mm in the case where planting hair portion is 19mm.
Next, by H1And H0Absolute value of the difference found out as a (unit mm).The a is available to be measured such as altimeter.
Measurement carries out at 25 ± 3 DEG C of room temperature.
5 said determinations are carried out, using the average value of above-mentioned a as the deflection A on head 2.
Deflection A preferably 0.4~3.0, more preferable 0.4~2.5, further preferred 0.4~2.0.In addition, deflection A is excellent
Select 0.5~3.0, more preferable 0.5~2.5, further preferred 0.5~2.0.If deflection A is in the range, head 2 is certainly
Body is moderately bent, and shows the softness in the plant hair portion on implantation head 2, becomes more good to contact sense, that is, use feeling of gum.
If in addition, use feeling becomes good when deflection A is more than the lower limit value.If deflection A is below the upper limit value,
It is easy to ensure that sufficient intensity in head 2.Further, toothbrush 1 will not become excessively weak, be easy to get in good oral cavity
Operability, sweeping forces.
In addition, deflection A can bending elastic modulus by adjusting the material (i.e. the material of handlebody 10) on head 2 or head 2
The adjustment such as thickness, width.
(the deflection B of neck 4)
The deflection B of neck is measured by the following method (β).
Method (β):
Plant top of the hair side towards vertical direction for making head, by the position on the boundary between the neck and handle portion of tooth into
The height for the handlebody front end gone in the state of fixing is as altitude datum.It is opposite in head again under the stationary state
In the long axis direction length for planting hair portion, the hammer of 200g is suspended in midair at 50 ± 3% position with the front end for planting hair portion, after 10 seconds
Shift amount (unit mm) deflection B as neck of the handlebody front end in height from the altitude datum.
In the present invention, the deflection B of neck 4, in addition to by the fixed position (boundary P1) of toothbrush 1 and being suspended in midair with jig 100
Other than the position S of hammer 102 is different from the measuring method of deflection A on head 2, the deflection A on remaining and head 2 is carried out similarly
Measurement.
It is boundary P2 with the position that jig 100 fixes toothbrush 1 in the measurement of the deflection B of neck 4.In addition, S is: relative to
Plant hair portion long axis direction length, with plant hair portion front end at a distance of 50 ± 3% position.For example, planting the case where hair portion is 19mm
Under, S is with front end at a distance of the position of 9.5mm.
Next, the altitude datum H in the same manner as the measuring method of the deflection A on head 2, before finding out suspention hammer 1020And suspention
Height H of the hammer 102 after 10 seconds1Absolute value of the difference (unit mm).Measurement carries out at 25 ± 3 DEG C of room temperature.Carrying out 5 times should
Measurement, using its average value as the deflection B of neck 4.
Deflection B preferably 2.1~5.0, more preferable 2.3~4.5, further preferred 2.5~4.0.If deflection B is described
When range, 4 appropriateness flexure of neck shows appropriate resiliency, it is better to the contact sense of gum to plant hair portion.In addition, scratching
If song amount B is more than the lower limit value, bristle can be made to reach the intraoral side corner angles such as the depths of molar, it is intraoral
Sweeping forces further increase.Further, the entering that bristle enters oral pocket improves, and the sweeping forces of oral pocket further mention
It is high.If deflection B is below the upper limit value, it is easy to ensure that sufficient intensity in neck 4.Further, toothbrush 1 will not
Become excessively weak, is easy to get good use feeling.
In addition, deflection B can be by adjusting the bending elastic modulus or neck of the material (i.e. the material of handlebody 10) of neck 4
Minimum diameter, boundary P2 cross sectional shape etc. adjust.
The product (A × B) of the deflection B of head deflection A and neck be 0.8~10, preferably 1~10, further preferred 1~
6, further preferred 1~3.5.In addition, (A × B) preferably 2~10.Head 2 and neck can be obtained if in the range in (A × B)
The appropriateness flexure that portion 4 is coordinated.As a result, when making to plant hair portion relative to object position (tooth, gum etc.) sliding is cleaned, show
The softness and resiliency in hair portion are planted, the contact sense for planting hair portion becomes good.In addition, the lower limit value of (A × B) is 0.8 or more, preferably 1
More than.Furthermore it is preferred that 2 or more.By allowing (A × B) more than the lower limit value, appropriate flexure can be obtained, thus to gum
Contact sense is good, can obtain the preferable massage effect to gum, and use feeling improves.The upper limit value of (A × B) is 10 hereinafter, it is preferred that 6
Hereinafter, more preferable 3.5 or less.By making (A × B) in the upper limit value hereinafter, can inhibit head 2 and neck 4 is formed by area
Domain excessive deflection, operability reduce and sweeping forces reduce.In addition, can inhibit the massage as caused by the excessive deflection to gum
Effect reduces and user uses weakness when toothbrush 1 to feel.Further, the intensity of toothbrush 1 improves, and durability improves.
The preferred A < B of deflection A and deflection B.If the operability of toothbrush 1 further increases when A < B.
In addition, the difference (B ﹣ A) preferably 1 or more, preferably 1.5 or more, further preferred 2 or more of deflection A and deflection B.(B ﹣ A)
If when more than the lower limit value, relative to head 2, the deflection of neck 4 keeps larger, and resiliency improves, gum is connect
Sense of touch becomes good, and user is easy to be actually perceived the massage effect to gum.
In addition, (B ﹣ A), preferably 4 hereinafter, more preferable 3 or less.(B ﹣ A) if when below the upper limit value, relative to head 2, neck
The deflection in portion 4 will not become excessive, and operability is easy to improve in oral cavity.Further, it is easy that user is inhibited to use toothbrush 1
When weak sense.
(B ﹣ A) preferably 1~4, more preferable 1~3.
In addition, the ratio between deflection B and deflection A (B/A) preferably 1.5~5.0, more preferable 1.8~4.8.
(the deflection A ' on head 2)
The deflection A ' on head, (α ') is measured by the following method.
Method (α '):
Plant top of the hair side towards vertical direction for making head, will be from the position on the head in toothbrush and the boundary between neck
The height of the handlebody front end in the state of being fixed to the position of handle portion side offset 10mm is played as altitude datum.?
Under the stationary state again in head relative to the long axis direction length for planting hair portion, the front end with plant hair portion is at a distance of 10 ± 3%
Position at suspend the hammer of 200g in midair, shift amount of the handlebody front end after 10 seconds in the height from the altitude datum is (single
Deflection A ' of the position for mm) as the head.
In the present invention, the deflection A ' on head 2, in addition to the position (boundary P1) and head 2 with the fixed toothbrush 1 of jig 100
Deflection A measuring method it is different other than, the deflection A on remaining and head 2 is carried out similarly measurement.
In the measurement of the deflection A ' on head 2, the position with the fixed toothbrush 1 of jig 100 is, from boundary P1's on long axis direction
Play the position P3 to handle portion side offset 10mm in position.
Next, the altitude datum H in the same manner as the measuring method of the deflection A on head 2, before measurement suspention hammer 1020With suspention
Height H of the hammer 102 after 10 seconds1Absolute value of the difference (unit mm).Measurement carries out at 25 ± 3 DEG C of room temperature.Carrying out 5 times should
Measurement, using its average value as the deflection A ' on head 2.
Deflection A ' preferably 1~5, more preferable 1~4, further preferred 1~3.Deflection A ' if in the range, head
Portion 2 itself is moderately bent, and is shown the softness in the plant hair portion on implantation head 2, is become more to contact sense, that is, use feeling of gum
Well.In addition, deflection A ' is if when more than the lower limit value, use feeling becomes good.Deflection A ' if the upper limit value with
When lower, it is easy to ensure that sufficient intensity in head 2.Further, toothbrush 1 will not become excessively weak, be easy to get good
Oral cavity in operability, sweeping forces.
In addition, deflection A ' can bending elastic modulus by adjusting the material (i.e. the material of handlebody 10) on head 2 or head 2
Thickness, width etc. adjust.
The product (A ' × B) preferably 2.5~12, more preferable 3~12 of the deflection B of the deflection A ' and neck on head, into one
Step preferably 3~10, further preferred 3~7.(A ' × B) is if when in the range, be easy to get what head 2 and neck 4 were coordinated
Appropriateness flexure, thus.When making to plant hair portion relative to object position (tooth, gum etc.) sliding is cleaned, show to plant hair portion
Soft and resiliency, the contact sense for planting hair portion become more good.In addition, (A ' × B) is 2.5 or more, preferably 3 or more.Pass through
It allows (A ' × B) more than the lower limit value, appropriate flexure can be obtained, thus it is better to the contact sense of gum, it obtains opposite
In the higher massage effect of gum, use feeling is further increased.(A ' × B) is 12 hereinafter, it is preferred that 10 hereinafter, more preferable 7 or less.
By allowing (A ' × B) in the upper limit value hereinafter, being easy the region transitions for inhibiting to be formed by head 2 and neck 4 flexure, operability
It reduces and sweeping forces reduces.In addition, can inhibit as caused by the excessive deflection to the massage effect reduction of gum and user
Weak sense when using toothbrush 1.Further, the intensity of toothbrush 1 improves, and durability further increases.
In addition, the ratio between deflection B and deflection A ' (B/A ') preferably 0.8~2.5, more preferable 0.9~2.0.
(the hair front end intensity of bristle)
The hair front end intensity for constituting the bristle of pieces measures as follows.
As measurement device, ISO bristle stiffness and strength testing machine is used.ISO bristle stiffness and strength testing machine 200 shown in Fig. 3
Have: the ladder 204 of datum level 202 and configuration on datum level.The ladder 204 has more columned clavas
(stainless steel, diameter: 3mm).The clava (is spaced 10mm between claval center) at certain intervals in parallel with each other
Arrangement.
Firstly, being arranged toothbrush 1 on above-mentioned testing machine 200.At this point, making the preceding end in contact for being implanted into the bristle on the head 2 of toothbrush 1
The datum level 202 of above-mentioned testing machine 200.Next, finding out when making head 2 relative to the 202 horizontal sliding of datum level most
Big resistance value, as the hair front end intensity of bristle.The glide direction on head 2 is: the length direction of toothbrush 1 and the clava
Length direction perpendicular direction each other.The sliding speed on head 2 is set as 10mm/ points.
Hair the front end intensity preferably 1.7~3.0N, more preferable 1.9~2.8N of bristle.If the hair front end intensity of bristle is in institute
When stating in preferred range, the removing power of tartar is further increased, and bristle is better to the contact sense of gum, usability into
One step improves.
The toothbrush 1 of present embodiment can be manufactured according to the manufacturing method of known toothbrush.For example, being infused in mold
Hard resin is penetrated, handlebody 10 is formed.Next, being obtained by the plant hair side 20 that pieces is implanted into obtained handlebody 10
Toothbrush 1.As the method for implantation pieces, can lift for example, being beaten the flat wire sandwiched in-between by being two by one folding of pieces
The flat wire type for entering to plant pore 22 and being implanted into pieces plants hair;The lower end indentation of pieces is become in the molten resin for planting hair portion and solid
Fixed hot melt adhesive method;The lower end of pieces is heated, after forming molten mass, injects molten resin in a mold, hair portion will be planted
Molding Mo Neifa (in-mold process) etc..
The toothbrush of 1st invention is especially effective when the toothbrush to plant Mao Laizhi mao mao's beam by flat wire type.Using flat wire
In the case that formula plants hair, apply to head as squeezing into load brought by flat wire.Therefore, head is thinner, when for force
The intensity of deformation becomes lower.In the toothbrush 1 of present embodiment, by making neck hold appropriate flexibility, when can will brush teeth
Integrally disperse Deng to the power that head applies from head to neck.It therefore, can especially significantly in the case where flat wire type plants hair
Obtain effect of the invention.
Particularly, using the low acrylic resin of intensity as the material of handlebody, hair is planted using flat wire type and obtains toothbrush
In the case of, the value X of the deflection (A/L2) on the corresponding head of length (L2) on per unit head is set as 0.015~
When 0.045, the value Y of the deflection (B/ (L2+L3)) of the corresponding neck of the sum of length of per unit head and neck (L2+L3) with
The ratio between X Y/X is preferably set to 0.8~2.0.The X is preferably set to 0.018~0.45, more preferably it is set as 0.018~
0.040, Y/X is preferably set to 0.9~2.0 at this time, is more preferably set as 0.9~1.9.
In addition, in the case where the polyacetal resin that intensity is high obtains toothbrush using flat wire type plant hair as handle material,
The X is being set as 0.027~0.035, when being preferably set to 0.029~0.032, the Y/X is preferably set to 1.0~
1.4, more preferably it is set as 1.0~1.3.
Illustrate the application method of the toothbrush 1 of present embodiment.
Firstly, holding handle portion 6.The mode for holding handle portion 6 is not particularly limited, and can be holding, is also possible to pen and holds
Formula.It is cleaned generally, due to while applying pressure to object position, so in any holding mode, all by thumb etc.
It touches near the boundary P2 of neck rear end, holds handle portion 6.
Next, 2 insert port of head is intracavitary, one side squeeze grip portion 6, allows plant hair portion sliding on cleaning object position on one side
It is dynamic.The power applied to handle portion 6 is transmitted by neck 4 to head 2, is further transmitted from head 2 to hair portion is planted, is planted hair as a result,
Portion cleans while to object position application pressure is cleaned.At this moment, due to head deflection A and neck deflection B it
Product (A × B) is 0.8~10, so head and the appropriateness flexure that neck is coordinated can be obtained.As a result, being easy to make to be implanted into toothbrush 1
Head 2 in bristle reach the intraoral side corner angle such as depths of molar, intraoral sweeping forces improve.Further,
It is easy that bristle is made to enter oral pocket, the sweeping forces of oral pocket improve.In addition, since appropriateness flexure can be obtained, so plant hair portion
Soft and resiliency improves, and plants hair portion and becomes good to the contact sense of gum, can obtain the good massage effect to gum, use
Sense improves.
In addition, when the product (A ' × B) of the deflection B of the deflection A ' and neck on head is if 2.5~12, it is easier to further
The appropriateness flexure coordinated to head and neck.The sweeping forces of intraoral molar depths or oral pocket etc. further increase as a result,
In addition, being easy to get the good massage effect to gum, use feeling is further increased.
In addition, head 2 thickness T1 be 2.0~4.0mm, and the minimum diameter of neck 4 be 3.0~4.5mm when, more hold
Easily make the bristle being implanted into head 2 reach intraoral side corner angle, the intraoral sweeping forces such as molar depths to further increase.
Further, the operability of toothbrush 1 further increases.
In addition, when hair front end intensity is if 1.7~3.0N, it is easier to so that bristle is entered oral pocket, the sweeping forces of oral pocket are into one
Step improves.Further, better to the contact sense of gum, use feeling further increases.
[the 2nd invention]
The toothbrush of 2nd invention is a kind of toothbrush, which is characterized in that has and is implanted with the head of pieces, extends to head setting
Neck and the handle portion for extending to neck setting, the product (A ' × B) of the deflection B of the deflection A ' and neck on head for 2.5~
12.The toothbrush of 2nd invention is necessary in addition to the product (A ' × B) of the deflection B of the deflection A ' and neck on head is 2.5~12
Other than, mode same with the toothbrush of the 1st invention can be used in remaining, and preferred mode is also identical.
About A ' × B as described in the 1st invention.
In the toothbrush of 2nd invention, due to the deflection A ' and neck on head deflection B product (A ' × B) be 2.5~
12, so head and the appropriateness flexure that neck is coordinated can be obtained.As a result, being easy to arrive the bristle in the head for being implanted into toothbrush
The intraoral side corner such as the depths up to molar angle, intraoral sweeping forces improve.Further, it is easy that bristle is made to enter periodontal
The sweeping forces of bag, oral pocket improve.In addition, so planting the softness and resiliency raising in hair portion, being planted since appropriate flexure can be obtained
Hair portion becomes good to the contact sense of gum, can obtain the good massage effect to gum, and use feeling improves.
Hereinafter, enumerate embodiment illustrates the present invention in further detail, but the present invention is not limited to these Examples.
Material used in the present embodiment is as described below:
< handlebody >
POM-1 (bending elastic modulus: 2600MPa)
PP-1 (bending elastic modulus: 1900MPa)
PP-2 (bending elastic modulus: 1400MPa)
< bristle >
·PBT
(Examples 1 to 3, comparative example 1~2)
Make toothbrush same with Figure 1A and Figure 1B.The length L1 of the handlebody of the toothbrush of each example is 180mm, the thickness on head
T1, the length L2 on head, the width W1 on head, the minimum diameter T2 of neck, the length L3 of neck, the width of boundary P2, boundary
P2 with a thickness of size shown in table 1.On head, bristle (being made of PBT) 23 are done up as pieces, by the pieces according to figure
Hair portion is planted in the implantation of plant hair pattern, setting shown in 1A.In addition, the length and thickness of the bristle of each example are size shown in table 1.
The material of the toothbrush of each example is as shown in table 1.
In addition, measuring the deflection A on the head of the toothbrush of each example, the deflection B of neck, hair front end intensity according to the method described above
(the position of boundary P1: with the front end 9 of handlebody 10 at a distance of the position of 31.5mm, boundary P2: apart with the front end 9 of handlebody 10
76.0mm)
Deflection A, deflection B, A × B and hair front end intensity of the toothbrush of each example are as shown in table 1.
(embodiment 4~9, comparative example 3~7)
Make toothbrush same with Figure 1A and Figure 1B.The length L1 of the handlebody of the toothbrush of each example be 180mm (embodiment 4~9,
Comparative example 3~7), the length of the thickness T1 on head, the length L2 on head, the width W1 on head, the minimum diameter T2 of neck, neck
Spend L3, the width of boundary P2, boundary P2 with a thickness of size shown in table 2 and table 3.On head, bristle (being made of PBT) is done up
23 are used as pieces, which is implanted into according to plant hair pattern shown in figure 1A, and hair portion is planted in setting.In addition, the bristle of each example
Length and thickness are size shown in table 2 and table 3.
The material of the toothbrush of each example is as shown in table 2 and table 3.
In addition, measure according to the method described above the deflection A on the head of the toothbrush of each example, head deflection A ', neck flexure
Measure B and hair front end intensity.The position of the boundary P1 of fixed toothbrush and the position of boundary P2 are as described above in the toothbrush of each example
It determines.
3 institute of deflection A, deflection A ', deflection B, A × B, A ' × B and hair front end intensity such as table 2 and table of the toothbrush of each example
Show.
In addition, evaluating sweeping forces, use feeling, operability as follows for the toothbrush of each example.
Each evaluation result is as shown in table 1~3.
[sweeping forces of molar depths (the throat side of molar)]
The toothbrush cleanout of each example of 10 people's experimental groups is intracavitary, by the cleaning effect of the depths of molar at this time according to following evaluations
Benchmark evaluation.The average mark of 10 people's experimental groups more than and less than 4 points is " △ " at 2 points, less than 2 points the above are "○" at 4 points
For "×".
< evaluation criteria >
5 points: can very experience the sense of touch that molar depths spot is fallen.
4 points: experiencing the sense of touch that molar depths spot is fallen strongly.
3 points: experiencing the sense of touch that molar depths spot is fallen.
2 points: can less experience the sense of touch that molar depths spot is fallen.
1 point: being not felt by the sense of touch that molar depths spot is fallen.
[evaluation of use feeling]
The toothbrush cleanout of each example of 10 people's experimental groups is intracavitary, by commented according to following evaluation criteria the contact sense of gum at this moment
Valence evaluates the use feeling of toothbrush.The above are "○" at 4 points for the average mark of 10 people's experimental groups, be more than and less than 4 points at 2 points "
△ " is "×" less than 2 points.
< evaluation criteria >
5 points: not bitterly, contact sense is very excellent for gum.
4 points: not bitterly, contact sense is very excellent for gum.
3 points: not bitterly, contact sense is excellent for gum.
2 points: gum feels faint pain.
1 point: gum feels strong pain.
[operational in oral cavity]
10 people's experimental group cleanouts are intracavitary, evaluate the operability of the toothbrush of each example.The evaluation of operability is divided into 1 point~7
Divide this 7 grades, feels operational good, score is higher.By the average mark of 10 people's experimental groups according to following determinating references
Classification determines operability in oral cavity.
< determinating reference >
Zero: being equally divided into 5 points or more.
△: 3 points are equally divided into more than and less than 5 points.
×: average mark is less than 3 points.
[table 1]
[table 2]
[table 3]
As shown in table 1, excellent using sweeping forces in the oral cavity of the toothbrush of the embodiment of the present invention 1,2,3 and use feeling is good
It is good.Further, operability is excellent in oral cavity.
In contrast, toothbrush (comparative example 1), A × B ultrasound of the A × B less than 0.8 cross 10 toothbrush (comparative example 2) to the depths of molar
Sweeping forces it is insufficient, be also unable to get intraoral excellent operability.
In addition, as shown in table 2, it is excellent using sweeping forces in toothbrush (embodiment 4~9) oral cavity of the invention, and use feeling
Well.Further, operability is excellent in oral cavity.
In contrast, as shown in table 3, the toothbrush (comparative example 3~7) that A × B is less than 0.8 or A ' × B is less than 3 is to molar depths
Sweeping forces are insufficient at least one in operability in the sweeping forces, use feeling and oral cavity of oral pocket.
Based on result above, it can confirm that sweeping forces are more excellent in the oral cavity using toothbrush of the invention, and use feeling is more excellent.
Claims (10)
1. a kind of toothbrush, which is characterized in that have handlebody, the handlebody has head, extends to the head setting
Neck and the handle portion for extending to neck setting are implanted with pieces on the plant hair side on the head,
The mode that pieces is implanted on the plant hair side on head is that flat wire type plants hair,
The head with a thickness of 2.0~4.0mm, the minimum widith of the neck is 3.0~4.5mm,
The material of the handlebody is acrylic resin,
The deflection by the head measured following methods α is being set as A, is passing through the neck of following methods beta determination
Deflection be B when, relative to head length L2 head deflection, that is, A/L2 value X be 0.015~0.045,
It is neck deflection, that is, B/ (L2+L3) of L2+L3 relative to the sum of the head length L2 and the neck length L3
The ratio between value Y and the X Y/X are 0.8~2.0,
Method α: make the plant top of the hair side towards vertical direction on the head, by the side between the head and the neck
The position on boundary fixed in the state of the handlebody front end height as altitude datum, under the stationary state
Again in the head relative to plant hair portion long axis direction length, with it is described plant hair portion front end at a distance of 10 ± 3% position
Place suspention 200g hammer, by the handlebody front end after 10 seconds in the height from the altitude datum as unit of mm
Deflection A of the shift amount as the head,
Method β: making the plant top of the hair side towards vertical direction on the head, will be between the neck and the handle portion
The position on boundary fixed in the state of the handlebody front end height as altitude datum, in the stationary state
Under again in the head relative to plant hair portion long axis direction length, with it is described plant hair portion front end at a distance of 50 ± 3% position
Set place suspention 200g hammer, by the handlebody front end after 10 seconds in the height from the altitude datum as unit of mm
Deflection B of the shift amount as the neck.
2. toothbrush according to claim 1, which is characterized in that the deflection A is 0.4~3.0mm, the deflection B
For 2.1~5.0mm.
3. toothbrush according to claim 1 or 2, which is characterized in that the minimum thickness of neck is 3.0~4.5mm.
4. toothbrush according to claim 1 or 2, which is characterized in that the minimum widith of the neck is 3.0~4.2mm.
5. toothbrush according to claim 3, which is characterized in that the minimum thickness of neck is 3.0~4.2mm.
6. a kind of toothbrush, which is characterized in that have handlebody, the handlebody has head, extends to the head setting
Neck and the handle portion for extending to neck setting are implanted with pieces on the plant hair side on the head,
The mode that pieces is implanted on the plant hair side on head is that flat wire type plants hair,
The head with a thickness of 2.0~4.0mm, the minimum widith of the neck is 3.0~4.5mm,
The material of the handlebody is polyacetal resin,
The deflection by the head measured following methods α is being set as A, is passing through the neck of following methods beta determination
Deflection be B when, relative to head length L2 head deflection, that is, A/L2 value X be 0.027~0.035,
It is neck deflection, that is, B/ (L2+L3) of L2+L3 relative to the sum of the head length L2 and the neck length L3
The ratio between value Y and the X Y/X are 1.0~1.4,
Method α: make the plant top of the hair side towards vertical direction on the head, by the side between the head and the neck
The position on boundary fixed in the state of the handlebody front end height as altitude datum, under the stationary state
Again in the head relative to plant hair portion long axis direction length, with it is described plant hair portion front end at a distance of 10 ± 3% position
Place suspention 200g hammer, by the handlebody front end after 10 seconds in the height from the altitude datum as unit of mm
Deflection A of the shift amount as the head,
Method β: making the plant top of the hair side towards vertical direction on the head, will be between the neck and the handle portion
The position on boundary fixed in the state of the handlebody front end height as altitude datum, in the stationary state
Under again in the head relative to plant hair portion long axis direction length, with it is described plant hair portion front end at a distance of 50 ± 3% position
Set place suspention 200g hammer, by the handlebody front end after 10 seconds in the height from the altitude datum as unit of mm
Deflection B of the shift amount as the neck.
7. toothbrush according to claim 6, which is characterized in that the deflection A is 0.4~3.0mm, the deflection B
For 2.1~5.0mm.
8. toothbrush according to claim 6 or 7, which is characterized in that the minimum thickness of neck is 3.0~4.5mm.
9. toothbrush according to claim 6 or 7, which is characterized in that the minimum widith of the neck is 3.0~4.2mm.
10. toothbrush according to claim 8, which is characterized in that the minimum thickness of neck is 3.0~4.2mm.
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CN201780016029.0A CN108778048B (en) | 2016-03-09 | 2017-03-09 | Toothbrush |
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CN201911031630.4A Active CN110801097B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
CN201910470158.8A Active CN110169647B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
CN201780016029.0A Active CN108778048B (en) | 2016-03-09 | 2017-03-09 | Toothbrush |
CN201910172705.4A Active CN110063567B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
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KR (5) | KR102183114B1 (en) |
CN (4) | CN110801097B (en) |
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EP3501334B1 (en) * | 2017-12-20 | 2020-06-24 | The Gillette Company LLC | Oral care implement |
JP7190872B2 (en) * | 2018-11-08 | 2022-12-16 | ライオン株式会社 | toothbrush |
JP7407091B2 (en) | 2020-09-03 | 2023-12-28 | ライオン株式会社 | toothbrush |
KR20220072165A (en) | 2020-11-25 | 2022-06-02 | 박수남 | Functional tooth brush |
JP2022100465A (en) * | 2020-12-24 | 2022-07-06 | ライオン株式会社 | toothbrush |
CN117084499A (en) * | 2022-03-30 | 2023-11-21 | 好维股份有限公司 | Toothbrush with tooth brush |
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