[go: up one dir, main page]

CN105451602B - Toothbrush - Google Patents

Toothbrush Download PDF

Info

Publication number
CN105451602B
CN105451602B CN201480043820.7A CN201480043820A CN105451602B CN 105451602 B CN105451602 B CN 105451602B CN 201480043820 A CN201480043820 A CN 201480043820A CN 105451602 B CN105451602 B CN 105451602B
Authority
CN
China
Prior art keywords
pieces
group
pieces group
head
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.)
Active
Application number
CN201480043820.7A
Other languages
Chinese (zh)
Other versions
CN105451602A (en
Inventor
山本由佳里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lion Corp
Original Assignee
Lion Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lion Corp filed Critical Lion Corp
Publication of CN105451602A publication Critical patent/CN105451602A/en
Application granted granted Critical
Publication of CN105451602B publication Critical patent/CN105451602B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/028Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Brushes (AREA)

Abstract

The present invention relates to toothbrush (1), have:On the middle section of the plant hair side (12a) of head (12), the 1st pieces group (16) for being aligned in any bristle lengths and being implanted into, with be aligned in the bristle lengths higher than the 1st pieces group (16), clamp the 1st pieces group (16) and be arranged at front end (13) side and the rear end side of head (12), a pair of the 2nd pieces groups (18) being separated from each other, and it is aligned in the bristle lengths higher than the 2nd pieces group (18), clamp a pair of the 2nd pieces groups (18) and be arranged at front end (13) side and the rear end side of head (12), a pair of the 3rd pieces groups (20) being separated from each other, wherein, a pair of the 2nd pieces groups (18) and a pair of the 3rd pieces groups (20) are configured as, open wide the center direction for planting hair side (12a), surround the appearance of the 1st pieces group (16).

Description

Toothbrush
Technical field
The present invention relates to toothbrush.
The present invention is drawn herein based on the Patent 2013-161454 CLAIM OF PRIORITYs in Japanese publication on the 2nd of August in 2013 With its content.
Background technology
On toothbrush, many time have been spent to improve tartar removal effect.But in conventional toothbrush, it is difficult to make head Plant hair side on the hair end of pieces that is implanted into all adapt to teeth.Therefore, when brushing teeth, due to a part pieces local buckling compared with Greatly, a part of pieces does not contact tooth, especially, in the user for brushing teeth skill is lacked, between tooth and on the corner of facing Easily residual tartar, the reason for turning into carious tooth and periodontosis.
Therefore, the hair end as the bristle for making head implantation adapts to the toothbrush of tooth on the whole, such as, it is proposed that following tooth Brush.
The upper surface in hair portion is planted from the toothbrush (patent document 1) of the mortar shape depression for the outer circumferential center step-down for planting hair portion.
[background technology document]
[patent document]
[patent document 1] Beneficial 5-39329 publications
The content of the invention
[the invention problem to be solved]
But using patent document 1 toothbrush when, because hair end is easily adapted on facing, tartar on facing removes effect Fruit is higher, but is difficult to remove tartar from the space between tooth and neck portion etc..
The invention provides a kind of hair end to be easily adapted to tooth on the whole, and use feeling is excellent, and there is excellent tartar to remove Effect, can be from the toothbrush that tartar is efficiently removed between facing, tooth and in the space in neck portion.
[means to solve the problem]
The toothbrush of the present invention has following mode.
[1] a kind of toothbrush, there is head, shank and Duo Gen bristles,
On the plant hair side on the head, multiple pieces being bundled into by the more bristles are implanted,
The toothbrush has:On the middle section of the plant hair side, the 1st pieces of implantation of being alignd with any bristle lengths Group,
Be aligned in the bristle lengths higher than the 1st pieces group, located at the front on the head and rear end side, two A pair of the 2nd pieces groups being separated from each other between person across the 1st pieces group, and
Be aligned in the bristle lengths higher than the 2nd pieces group, located at the front on the head and rear end side, two A pair of the 3rd pieces groups being separated from each other between person across the 1st pieces group,
Wherein, a pair described of the 2nd pieces groups and a pair described of the 3rd pieces groups are arranged to, and open wide the plant hair The center direction in face, the appearance of the 1st pieces group is surrounded in the longitudinal direction.
[2] toothbrush recorded according to [1], the diameter of the pieces of the 2nd pieces group and the pieces of the 3rd pieces group Diameter, the diameter than the pieces of the 1st pieces group is small.
[3] toothbrush recorded according to [1], the 1st pieces group are arranged to vertical view and assumed diamond in shape,
Two diagonal of the rhombus are arranged to parallel with the length direction and width on the head respectively.
[4] toothbrush recorded according to [1], the 1st pieces group be arranged to overlook it is hexagonal,
1 diagonal of the hexagon is arranged to parallel with the length direction on the head.
[5] toothbrush recorded according to [1], the 2nd pieces group are arranged to overlook the appearance in V shape or arc-shaped, To surround the 1st pieces group in the longitudinal direction.
[6] toothbrush recorded according to [1], the 3rd pieces group are arranged to overlook the appearance in V shape or arc-shaped, To surround the 1st pieces group and the 2nd pieces group in the longitudinal direction.
[7] a kind of toothbrush, it is characterised in that implant multiple pieces being bundled into by more bristles on the plant hair side on head Toothbrush in, have on the middle section of the plant hair side, the 1st pieces group of implantation of being alignd with any bristle lengths is and right Higher than the 1st pieces group Qi Yu bristle lengths, clamp the 1st pieces group and located at the front on the head and after Side, a pair of the 2nd pieces groups being separated from each other, and be aligned in the bristle lengths higher than the 2nd pieces group, clamp it is described A pair of the 2nd pieces groups and located at the front on the head and rear end side, a pair of the 3rd pieces groups being separated from each other, wherein, A pair described of the 2nd pieces groups and a pair described of the 3rd pieces groups are arranged to, and open wide the center direction for planting hair side, Surround the appearance of the 1st pieces group.
[8] toothbrush recorded according to [7], the diameter of the pieces of the 2nd pieces group and the pieces of the 3rd pieces group Diameter, the diameter than the pieces of the 1st pieces group is small.
[The effect of invention]
The toothbrush of the present invention, hair end are easily adapted to tooth on the whole, and use feeling is excellent, and there is excellent tartar to remove effect Fruit, can be from efficiently removing tartar between facing, tooth and in the space in neck portion.
Brief description of the drawings
The plan on the head in the toothbrush of the first embodiment of [Fig. 1] present invention.
The side view on [Fig. 2] Fig. 1 head.
The plan on the head in the toothbrush of the other embodiment of [Fig. 3] present invention.
The side view on [Fig. 4] Fig. 3 head.
The plan on the head in the toothbrush of [Fig. 5] comparative example 1.
[explanation of symbol]
1st, 2 toothbrush
10 shanks
12 heads
13 front ends
14 shank bodies
16th, the pieces groups of 16A the 1st
The pieces of 16a, 16b the 1st
18 the 2nd pieces groups
The pieces of 18a the 2nd
20 the 3rd pieces groups
The pieces of 20a the 3rd
Embodiment
In the present invention, " bristle lengths of alignment pieces group " refer to, in the meaning that visual lower bristle length is aligned.That is, In addition to the identical situation of the bristle lengths of each pieces, also including the slightly different situation of bristle lengths.In bristle lengths In the pieces group of alignment, the error of bristle lengths, relative to the average length of bristle in same pieces group, preferably ± 10% with Under, more preferably ± less than 5%.
In addition, in head, using the direction from front end towards rear end as length direction, perpendicular to the length direction Direction is as width.
< first embodiments >
Hereinafter, the toothbrush on first embodiment of the invention, based on Fig. 1 and Fig. 2 explanations.
The toothbrush 1 of present embodiment, there is the shank 10 by strip, and formed located at the head 12 of the front end of shank 10 Shank body 14.In addition, toothbrush 1 on the plant hair side 12a on head 12, has the 1st pieces group 16, the 2nd pieces group 18 and the 3rd pieces group 20。
[shank body]
Shank body 14 is integrally formed by shank 10 and head 12.
The shank 10 of shank body 14 and the shape and size on head 12 are not particularly limited, can be suitably using being adopted in toothbrush Common shapes and sizes.
Shank body 14, for example, can be by the way that resin injection molding is obtained.The resin for forming shank body 14 is to consider the institute of toothbrush 1 The decisions such as the rigidity and mechanical property of demand.It can lift for example, the modulus of elasticity in static bending (JIS K7203) is in 500~3000MPa models Enclose interior high hardness resin.
As such high hardness resin, can lift for example, polypropylene (PP), polyethylene terephthalate (PET), poly- Mutual-phenenyl two acid bromide two alcohol ester (PBT), polycyclohexylene's diformazan alcohol ester (PCT), polyformaldehyde (POM), polystyrene (PS), acrylonitrile-butadiene-styrene resin (ABS), cellulose propionate (CP), polyarylate, makrolon and propylene Nitrile-styrene copolymer resin (AS) etc..These resins can be used alone, can also two or more be used in combination.
[the 1st pieces group]
1st pieces group 16, when using toothbrush of the present invention, mainly connect with facing, play removing and be attached to tooth The effect of tartar on face.
1st pieces group 16, it is by the middle section for planting hair side 12a on head 12, being implanted into and being grown with arbitrary bristle Spend multiple first pieces 16a of alignment and formed.That is, it is more by being implanted on the middle section for planting hair side 12a on head 12 Individual first pieces 16a, the 1st pieces group 16 is formed, and multiple 1st pieces 16a bristle lengths are mutually aligned.
Hair portion is is planted in the region that each pieces group (16,18 and 20) is integrally surrounded, and herein, " middle section " refers to, is located at The periphery area defined for forming the pieces group in the plant hair portion (is forming the pieces of each pieces group (16,18 and 20) Among (16a, 18a and 20a), be arranged at draw tangent line on the outside of outermost pieces 16a, 18a and 20a when, formed by tangent line Region) central region, be in the region formed by tangent line, with the center line and width of the length direction on head Region centered on the crosspoint of the center line in direction.Relative to the length direction on the head in the region formed by tangent line On most long region length, the ratio shared by the length in the most long region on the length direction on the head of middle section is excellent Elect 30~50% as.
The 1st pieces group 16 of this example is formed by 9 the 1st pieces 16a, and those the 1st pieces 16a are configured to plover shape, make Its vertical view assumes diamond in shape, so as to form the 1st pieces group 16.More specifically, each 1st pieces 16a is aligned to so that overlooks the 1st 2 diagonal of the rhombus that pieces group 16 obtains are parallel with length direction and the width difference on head 12.Herein, " vertical view " Mean, hair side 12a situation is planted from normal direction." rhombus " is meant, four edges length all equal four Side shape.Meant in addition, overlooking the shape that the 1st pieces group 16 obtains, among the pieces 16a of the 1st pieces group 16 is formed, It is configured at shape when drawing tangent line on the outside of outermost pieces 16a, formed by tangent line.Either, the 1st pieces group 16 is being formed Pieces 16a among, when the central shaft for being configured at outermost pieces 16a is drawn into tie line, the shape that is formed by the line." thousand Bird-like " refers to, for the relation of 2 row pieces, on the approximately half of position of a row pieces spacing, configures another row hair Beam.
The quantity for forming the 1st pieces 16a of the 1st pieces group 16 is not limited to 9, can be less than 8 or 10 It is more than root.Forming the 1st pieces 16a of the 1st pieces group 16 quantity, it may be considered that the 1st pieces 16a diameter etc. is suitably set, It is preferred that 4~16.
In addition, the plan view shape of the 1st pieces group 16 is not limited to rhombus, can be square, hexagon, circle or ellipse Shape etc..
1st pieces 16a, more bristles can be done up and formed.
As the bristle for forming the 1st pieces 16a, it is not particularly limited, can lifts for example, diameter is gradually reduced towards hair end The bristle (taper hair) that front end is sharpened, diameter is gradually reduced towards hair end, the bristle (half-cone bigger than taper hair point diameter Hair), and the bristle (straight hair) that external diameter outside the circle portion at defeathering end is essentially identical.Half-cone hair, for example, can be by taper hair Fore-end eliminate and obtain, or by adjust be chemically treated when treatment conditions (time) and obtain.
1st pieces 16a can be formed only with taper hair, only can also be formed with half-cone hair, only can also be formed with straight hair, Two or more combination in taper hair, straight hair, half-cone hair can also be used to be formed.The removing effect of the tartar adhered to from facing The higher point of fruit is set out, and the 1st pieces 16a is preferably formed by straight hair or taper hair.
As the material of bristle, it is not particularly limited, can be used commonly used in the bristle of toothbrush.Can lift for example, Polyurethane, PET, polybutylene terephthalate (PBT) (PBT), the poly terephthalic acid third of 6-12 nylon and 6-10 nylon etc. The polyenes such as polyester, PP such as diol ester (PTT), PEN (PEN) and PBN (PBN) Hydrocarbon, and olefin-based elastomer, and the resin material such as styrene series elastomer.These resin materials can be used alone, Can also two or more be used in combination.
The shape of cross section circular of bristle.In addition, the cross sectional shape of bristle be not limited to it is circular or for example Ellipse, polygon (such as triangle, quadrangle, pentagon or hexagon etc.) or special shape (such as star, clover Shape or bunge bedstraw herb shape) etc..
Form the quantity of the 1st pieces 16a bristle, it is contemplated that bristle diameter and bristle thickness suitably select.For example, the 1st In embodiment, preferably 20~28, more preferably 22~28.
In 1st pieces 16a, consider that use feeling, brush sweep sense, cleaning effect or durability etc., can be by different more of thickness Root bristle is used in any combination.
The beeline between pieces 16a in 1st pieces group 16, i.e., from pieces 16a central shaft to adjacent pieces 16a Central shaft distance, most weakness preferably 1.4~2.8mm, more preferably 1.7~2.5mm in group.
[the 2nd pieces group]
2nd pieces group 18 clamps the 1st pieces group 16 on the plant hair side 12a on head 12, in the side of front end 13 on head 12 and Rear end side is set a pair.A pair of the 2nd pieces groups 18 are separated from each other.That is, form the 2nd pieces of a pair of the 2nd pieces groups 18 18a, is not arranged to surround the both sides of the width of the 1st pieces group 16, and is set to surround its length direction Both sides.
Consequently, it is possible to the both sides by the way that the 2nd pieces 18a not to be arranged to surround to the width of the 1st pieces group 16 so that In a pair of the 2nd pieces groups 18, each 2nd pieces 18a hair end is easily accessible the space between tooth and neck portion etc..As a result, by Tartar present in space between the 2nd pieces group 18, tooth with neck portion etc. can efficiently be scanned out and removed.
The 2nd pieces 18a of the 2nd pieces group 18 is formed, can also be implanted the middle section for planting hair side 12a on head 12.
2nd pieces group 18 is formed by being implanted into more second pieces 18a, those more 2nd pieces 18a bristle Length, it is aligned in the bristle lengths higher than the 1st pieces group 16.Accordingly, the border of the 1st pieces group 16 and the 2nd pieces group 18 Part forms difference in height.Difference in height is formed by the 1st pieces group 16 and the 2nd pieces group 18, can efficiently be scanned out between tooth and neck Tartar present in the space in portion etc., thus tartar removes effect and improved.
2nd pieces group 18 is to open wide plant hair side 12a center direction, the 1st pieces group 16 is surrounded in the longitudinal direction Appearance arrange each 2nd pieces 18a and formed.Specifically, in this example, the 2nd pieces group 18 is to plant hair side 12a to open wide Center direction, the appearance that the 1st pieces group 16 is surrounded in the longitudinal direction, it is in V shape to be arranged to overlook.Herein, " in opening wide Centre direction " means that it is parallel (straight line setting in the width direction) that the 2nd pieces group 18 is not arranged to relative width direction, And the 2nd in pieces group 18, the pieces 18a for being configured at the both ends for the width for planting hair side is configured in, than being configured at center Positions of the pieces 18a closer to the center of middle section.Specifically mean from side during head 12, the 1st pieces group be present 16 and the 2nd region nonoverlapping in the longitudinal direction of pieces group 18, and the 1st pieces group 16 and the 2nd pieces group 18 are in length direction Upper overlapping region.From side during head 12, the 1st pieces group 16 and the overlapping in the longitudinal direction area of the 2nd pieces group 18 The width in domain, preferably 0.0~3.0mm on every 1 region.
In addition, in this example, the angle (interior angle of V shape) of the 2nd pieces group 18 of V shape, the rhombus with the 1st pieces group 16 In the side of the 2nd pieces group 18 the angle that is formed of two articles of sides it is different.
In addition, the side of the 2nd pieces group 18 in the angle of the 2nd pieces group 18 of V shape, with the rhombus of the 1st pieces group 16 The angle that two sides are formed can also be identical.
2nd pieces group 18 as described above, by being configured as opening wide the center direction for planting hair side 12a, in length direction On surround the 1st pieces group 16, the dirt such as tartar scanned out by the 2nd pieces group 18, be easy to width to the 2nd pieces group 18 Middle body is concentrated.Therefore, in the way scanned out by the 2nd pieces group 18, dirt can be suppressed from the width of the 2nd pieces group 18 Both sides escape from, situation about remaining in the space waited between tooth.
In addition, in this example, each 2nd pieces 18a of the 2nd pieces group 18, also include the 1st pieces of the 1st pieces group 16 16a, it is arranged to the configuration of plover shape, but is not limited to such arrangement.
The spread geometry of 2nd pieces group 18 is not limited to V shape, such as can also be arc-shaped.
The spread geometry of 2nd pieces group 18, because the effect for scanning out tartar from the space between tooth and neck portion etc. is preferable, It is preferred that V shape.
In this example, in 1 the 2nd pieces group 18, every group 5, amount to 10 the 2nd pieces 18a be set in the longitudinal direction Into two groups (two row).
The quantity for forming the 2nd pieces 18a of the 2nd pieces group 18 is not limited to 10, can be less than 9 or More than 11.Form the 2nd pieces 18a of the 2nd pieces group 18 quantity, it may be considered that the 2nd pieces 18a diameter etc. is suitably set It is fixed, preferably 3~18, more preferably 5~10.
In addition, the 2nd pieces group 18 can be configured to one group (row) in the longitudinal direction and be formed by the 2nd pieces 18a, also may be used It is configured to more than three groups (more than three row) and is formed.
When 2nd pieces 18a is configured as multiple row, the pieces 18a of front or rear end side bristle lengths are formed as comparing The pieces 18a of the row of middle section side bristle lengths are longer.
The mode of a pair of the 2nd pieces groups 18, can be asymmetric in the range of the effect of the present invention is not damaged.That is, 2nd pieces group 18 of front and the 2nd pieces group 18 of rear end side, in the range of the effect of the present invention is not damaged, Ke Yiwei Multi-form." symmetrical " herein means, using left as axle through the line planted hair side 12a center and drawn in the direction of the width Right symmetrical (axial symmetry).
For example, in the 2nd pieces group 18 of front and the 2nd pieces group 18 of rear end side, the 2nd pieces 18a quantity can be with Difference, the 2nd pieces 18a spread geometry can also be different.
In a pair of the 2nd pieces groups 18, preferably the 2nd pieces 18a quantity, spread geometry are identical and symmetrical.
2nd pieces 18a, more bristles can be done up and formed.
As the bristle for forming the 2nd pieces 18a, being not particularly limited, can illustrating as enumerated in the 1st pieces 16a.
2nd pieces 18a can be formed only with taper hair, only can also be formed with half-cone hair, only can also be formed with straight hair, Two or more combination in taper hair, straight hair, half-cone hair can also be used to be formed.2nd pieces 18a, between tooth and neck portion The point that the removing effect of tartar present in space is higher sets out, and is preferably formed by taper hair.
Forming the shape of cross section of the 2nd pieces 18a bristle can illustrate as enumerated in the 1st pieces 16a, circular.
In 2nd pieces 18a, consider that use feeling, brush sweep sense, cleaning effect or durability etc., can be by different more of thickness Root bristle is used in any combination.
2nd pieces 18a preferably is easier to bend than the 1st pieces 16a.Accordingly, the 2nd pieces 18a hair end is easily accessible tooth Between and neck portion space, tartar remove effect improve.
The quantity for the bristle to form the 2nd pieces 18a can be suitably set, so that the 2nd pieces 18a a diameter of desired value. For example, it is preferable to 10~15, more preferably 11~14.
The beeline between pieces 18a in 2nd pieces group 18, i.e., from pieces 18a central shaft to adjacent pieces 18a Central shaft distance, in most weakness preferably 1.4~2.8mm, more preferably 1.8~2.2mm.
2nd pieces 18a and the 1st pieces 16a distance, i.e. from the 2nd pieces 18a central shaft to the 1st adjacent pieces The distance of 16a central shaft, preferably 1.5~4.0mm, more preferably 2.5~3.2mm.
[the 3rd pieces group]
3rd pieces group 20 is in the plant hair side 12a on head 12, by the 1st pieces group 16 and a pair of the 2nd pieces groups for clamping it 18 clamp from front and rear end side, are provided with a pair in the side of front end 13 on head 12 and rear end side.A pair of the 3rd pieces groups 20 are mutual Separation.That is, the 3rd pieces 20a for forming a pair of the 3rd pieces groups 20 is not adapted to surround the width of the 1st pieces group 16 The appearance of the both sides of the width of the both sides in direction and the 2nd pieces group 18.
Consequently, it is possible to the both sides of width and the width of the 2nd pieces group 18 by not being configured to surround the 1st pieces group 16 The appearance of the both sides in direction is spent, identically with the 2nd pieces group 18, each 3rd pieces 20a hair end is easily accessible between tooth and neck The space in portion etc., as a result, tartar removal efficiency improves.
The 3rd pieces 20a of the 3rd pieces group 20 is formed, can also be implanted the middle section for planting hair side 12a on head 12.
3rd pieces group 20 is formed by being implanted into more 3rd pieces 20a, those more 3rd pieces 20a bristle Length, it is aligned in the bristle lengths higher than the 2nd pieces group 18.Accordingly, the border of the 2nd pieces group 18 and the 3rd pieces group 20 Part forms difference in height.Difference in height is formed by the 2nd pieces group 18 and the 3rd pieces group 20, can efficiently be scanned out between tooth and neck Tartar present in the space in portion etc., thus tartar removes effect and improved.
3rd pieces group 20 is to plant hair side 12a center direction to open wide, the outside of the 2nd pieces group 18 (front and after Side), the appearance that the 1st pieces group 16 is surrounded in the longitudinal direction, arrange each 3rd pieces 20a and formed.Namely Say, the 3rd pieces group 20 is formed the appearance for surrounding the 1st pieces group 16 and the 2nd pieces group 18 in the longitudinal direction.Herein, " unlimited center direction " is meant, the 3rd pieces group 20 is not arranged to the parallel (straight line in the width direction in relative width direction Set), and in the 3rd pieces group 20, the pieces 20a for being configured at width both ends is configured in, than the pieces for being configured at center Positions of the 20a closer to middle section side.Specifically mean from side during head 12, the 2nd pieces group 18 and the 3rd be present The region nonoverlapping in the longitudinal direction of pieces group 20, and the 2nd pieces group 18 and the 3rd pieces group 20 it is overlapping in the longitudinal direction Region.
2nd pieces group 18 and the width in the overlapping in the longitudinal direction region of the 3rd pieces group 20, in every 1 region On preferably 0.0~3.5mm.
Specifically, in this example, the 3rd pieces group 20 is to open wide plant hair side 12a center direction, the 2nd pieces group's 18 The appearance that outside (front and rear end side) surrounds the 1st pieces group 16 in the longitudinal direction, is arranged to V shape.In addition, this In example, the angle of the 3rd pieces group 20 of V shape is identical with the angle of the 2nd pieces group 18.
In addition, the angle of the 3rd pieces group 20 of V shape, can also be different with the angle of the 2nd pieces group 18.
Like this, by being configured to the 3rd pieces group 20 to open wide the center direction for planting hair side 12a, the 1st pieces group 16 is existed The appearance that length direction surrounds, identical with the 2nd pieces group 18, dirt is difficult to escape from the both sides of the width of the 3rd pieces group 20 From, thus tartar removes effect and improved.
In addition, in this example, each 3rd pieces 20a of the 3rd pieces group 20, also include the 1st pieces 16a of the 1st pieces group 16 And the 2nd pieces group 18 the 2nd pieces 18a, be arranged to the configuration of plover shape, but be not limited to such configuration.
The spread geometry of 3rd pieces group 20 is not limited to V shape, such as can also be arc-shaped.
The spread geometry of 3rd pieces group 20, because the effect for scanning out tartar from the space between tooth and neck portion etc. is preferable, It is preferred that V shape.
In this example, in 1 the 3rd pieces group 20,5 the 3rd pieces 20a are configured to one group (row) in the longitudinal direction.
The quantity for forming the 3rd pieces 20a of the 3rd pieces group 20 is not limited to 5, can be less than 4 or 6 It is more than root.Forming the 3rd pieces 20a of the 3rd pieces group 20 quantity, it may be considered that the 3rd pieces 20a diameter etc. is suitably set, It is preferred that 3~18, more preferably 5~10.
In addition, the 3rd pieces 20a can be configured to (more than two row) more than two by the 3rd pieces group 20 in the longitudinal direction And formed.
When 3rd pieces 20a is configured as multiple row, the pieces 20a of front or rear end side bristle lengths are formed as comparing The pieces 20a of the row of middle section side bristle lengths are longer.
Columns of the 3rd pieces group 20 preferably than the 2nd pieces group 18 is few.
The mode of a pair of the 3rd pieces groups 20, can be asymmetric in the range of the effect of the present invention is not damaged.That is, 3rd pieces group 20 of front and the 3rd pieces group 20 of rear end side, in the range of the effect of the present invention is not damaged, Ke Yiwei Multi-form.
For example, in the 3rd pieces group 20 of front and the 3rd pieces group 20 of rear end side, the 3rd pieces 20a quantity can be with Difference, the 3rd pieces 20a spread geometry can also be different.
In a pair of the 3rd pieces groups 20, preferably the 3rd pieces 20a quantity, spread geometry are identical and symmetrical.
3rd pieces 20a, more bristles can be done up and formed.
As the bristle for forming the 3rd pieces 20a, being not particularly limited, can illustrating as enumerated in the 3rd pieces 20a.
3rd pieces 20a can be formed only with taper hair, only can also be formed with half-cone hair, only can also be formed with straight hair, Two or more combination in taper hair, straight hair and half-cone hair can also be used to be formed.3rd pieces 20a is between tooth and neck portion The point that the removing effect of tartar present in space is higher sets out, and is preferably formed by taper hair.
The shape of cross section of the 3rd pieces 20a bristle being formed, being illustrated as enumerated in the 1st pieces 16a, circular.
In 3rd pieces 20a, consider that use feeling, brush sweep sense, cleaning effect or durability etc., can be by different more of thickness Root bristle is used in any combination.
3rd pieces 20a preferably is easier to bend than the 1st pieces 16a.Accordingly, the 3rd pieces 20a hair end is easily accessible tooth Between and neck portion space, tartar remove effect improve.
Form the quantity of the 3rd pieces 20a bristle, it is contemplated that bristle diameter and bristle thickness suitably select.For example, the 1st In embodiment, preferably 10~15, more preferably 11~14.
The beeline between pieces 20a in 3rd pieces group 20, i.e., from pieces 20a central shaft to adjacent pieces 20a Central shaft distance, in most weakness preferably 1.4~2.8mm, more preferably 1.8~2.2mm.
3rd pieces 20a and the 2nd pieces 18a distance, i.e. from the 3rd pieces 20a central shaft to the 2nd adjacent pieces The distance of 18a central shaft, preferably 1.2~4.0mm, more preferably 1.7~3.2mm.
As described above, in toothbrush 1, higher a pair of the bristle lengths provided with the pieces group of ratio the 1st for clamping the 1st pieces group 16 2nd pieces group 18, it is further provided with clamping the 2nd pieces group 18, a pair the 3rd higher than the bristle lengths of the 2nd pieces group 18 Pieces group 20.Accordingly, in toothbrush 1, from the side of front end 13 for the middle section headward 12 for planting hair side 12a and rear end side, bristle Length is stepped to be increased.
[size of pieces group]
The bristle lengths d1 (Fig. 2) of 1st pieces group 16 can suitably be set, preferably 7~12mm, more preferably 8~11mm.1st When the bristle lengths d1 of pieces group 16 is discontented with lower limit, hair bends through more, thus can feel bitterly when contacting tooth meat.In addition, friction Feel poor.When exceeding higher limit of the bristle lengths d1 of 1st pieces group 16, operability is poor in oral cavity.
The bristle lengths d2 (Fig. 2) of 2nd pieces group 18, aliging must be higher than the bristle lengths d1 of the 1st pieces group 16.
Relative to the bristle lengths d2 of the bristle lengths d1 of the 1st pieces group 16 the 2nd pieces group 18 difference (d2-d1), It is preferred that 0.5~3.0mm, more preferably 0.5~2.0mm.Poor (d2-d1) if discontented lower limit, the 2nd pieces is difficult to enter between tooth and tooth Neck.Poor (d2-d1) if exceeding higher limit, the 1st pieces does not contact facing sometimes, while the 2nd pieces contact tooth meat can be felt To pain.
The bristle lengths d3 (Fig. 2) of 3rd pieces group 20, aliging must be higher than the bristle lengths d2 of the 2nd pieces group 18.
Relative to the bristle lengths d3 of the bristle lengths d2 of the 2nd pieces group 18 the 3rd pieces group 20 difference (d3-d2), It is preferred that 0.5~3.0mm, more preferably 0.5~2.0mm.Poor (d3-d2) if discontented lower limit, the 3rd pieces is difficult to enter between tooth and tooth Neck.Poor (d3-d2) if exceeding higher limit, the 1st pieces does not contact facing sometimes, while the 3rd pieces contact tooth meat can be felt To pain.
" bristle lengths " herein mean, the average value of the length of the pieces in each pieces group.
2nd pieces 18a and the 3rd pieces 20a diameter, the preferably diameter than the 1st pieces 16a are small.Accordingly, by the 1st mao While beam 16a fully removes the tartar of facing, it is easier to by between the 2nd pieces 18a and the 3rd pieces 20a hair end insertion tooth and In the space in neck portion etc., the tartar in the space is removed.
1st pieces 16a diameter preferably 1.0~2.0mm, more preferably 1.4~1.8mm.If the 1st pieces 16a diameter is not Full lower limit, the possibility that the removing effect for having the tartar of facing reduces.When 1st pieces 16a diameter exceedes higher limit, by bending The possibility of excessive damage's use feeling.
2nd pieces 18a diameter preferably 1.0~1.6mm, more preferably 1.1~1.3mm.If the 2nd pieces 18a diameter is not Full lower limit, there is the possibility that cleaning force reduces.When 2nd pieces 18a diameter exceedes higher limit, curved transitions infringement use feeling.
The preferred scope of 3rd pieces 20a diameter is identical with the preferred scope of the 2nd pieces 18a diameter.3rd pieces 20a diameter, can be smaller than the 2nd pieces 18a diameter.
Form the diameter of the 1st pieces 16a bristle, preferably 0.12~0.26mm, more preferably 0.15~0.23mm.Form the When the diameter of 1 pieces 16a bristle is less than 0.12mm, bristle is excessively soft, and the cleaning force of facing reduces.Form the 1st pieces 16a brush When the diameter of hair is more than 0.26mm, use feeling is damaged.
Form the diameter of the 2nd pieces 18a bristle, preferably 0.12~0.26mm, more preferably 0.15~0.23mm.Form the When the diameter of 2 pieces 18a bristle is less than 0.12mm, pieces curved transitions, cleaning force reduces.Form the 2nd pieces 18a bristle Diameter more than 0.26mm when, gum can feel pain, and use feeling is damaged.
Form the diameter of the 3rd pieces 20a bristle, preferably 0.12~0.26mm, more preferably 0.15~0.23mm.Form the When the diameter of 3 pieces 20a bristle is less than 0.12mm, pieces curved transitions, cleaning force reduces.Form the 3rd pieces 20a bristle Diameter more than 0.26mm, and when the diameter that is implanted into the 3rd pieces 20a hole is excessive, gum can feel pain, and use feeling is damaged.
Hair portion is is planted in the region that each pieces group (16,18 and 20) is integrally surrounded, relative to the hair for forming the plant hair portion Region that the periphery of beam bundle is surrounded (that is, in the pieces (16a, 18a and 20a) for forming each pieces group (16,18 and 20), Be configured at region when drawing tangent line on the outside of outermost pieces 16a, 18a and 20a, formed by tangent line) area, the 1st pieces Area preferably 10~50 area %, more preferably 20~30 area % shared by group 16.
Hair portion is is planted in the region that each pieces group (16,18 and 20) is integrally surrounded, relative to the hair for forming the plant hair portion The area in the region that the periphery of beam bundle is surrounded, the area shared by the 2nd pieces group 18 are preferably 10~50 area %, more preferably 30~45 area %.
Hair portion is is planted in the region that each pieces group (16,18 and 20) is integrally surrounded, relative to the hair for forming the plant hair portion The area in the region that the periphery of beam bundle is surrounded, the area shared by the 3rd pieces group 20 are preferably 10~50 area %, more preferably 12~30 area %.
[manufacture method]
The manufacture method of toothbrush 1, except by the 1st pieces 16a, the second pieces 18a and the 3rd pieces of respective given size 20a is implanted into assigned position, is formed outside the 1st pieces group 16, the 2nd pieces group 18 and the 3rd pieces group 20, can use known side Method.
For example, the method for implantation as pieces, can be used known in the method that parallel lines are squeezed into or the method that hot melt adheres to etc. Method.
The diameter in hole during implantation pieces, can suitably be selected according to the diameter of the pieces of implantation.
In the toothbrush 1 of present invention mentioned above, according to the 1st pieces group 16, the 2nd pieces group 18 and the 3rd pieces group 20, from The side of front end 13 and the rear end side of hair side 12a middle section headward 12 are planted, bristle lengths are stepped to be increased, thus when brushing teeth Hair end has adapted to tooth on the whole.Accordingly, use feeling is excellent, and the tartar of facing is removed by the 1st pieces group 16, passed through simultaneously A pair of the 2nd pieces groups 18 and a pair of the 3rd pieces groups 20, the tartar in the space between tooth and neck portion etc. can be scanned out and removed.
In addition, by being configured to the 2nd pieces group 18 and the 3rd pieces group 20 to open wide center direction, the 1st pieces group 16 is existed The appearance surrounded on length direction, when from the space between tooth and neck portion etc., tartar is scanned out, tartar is difficult to from the 2nd pieces group 18 Escaped from the 3rd pieces group 20, thus can obtain preferable tartar removal effect.
<Other embodiment>
In addition, the toothbrush of the present invention is not limited to the toothbrush 1.
For example, the toothbrush of the present invention can also be the toothbrush 2 exemplified by Fig. 3 and Fig. 4.In Fig. 3 and Fig. 4, with Fig. 1 and Fig. 2 In same part be labeled as same symbol, omit the description.
In toothbrush 2,14 the 1st pieces 16b are configured to plover shape, make its vertical view hexagonal, so as to form the 1st pieces Group 16A, and the 1st pieces 16b diameter is identical with the 2nd pieces 18a and the 3rd pieces 20a diameter, in addition, with the phase of toothbrush 1 Together.The length on 6 sides of " hexagon " can be with identical, can also be different.
In toothbrush 2, same with toothbrush 1, the Shi Maoduan that brushes teeth has adapted to tooth on the whole, and use feeling is excellent, can efficiently remove Tartar in the space between facing and tooth and neck portion etc..
In Fig. 3 toothbrush 2,1 diagonal of hexagon is arranged as parallel with the length direction on head, but can also arrange It is parallel with the width on head for 1 diagonal of hexagon.Now, the 2nd pieces group 18 can be in correspond to hexagon three articles The square brackets shape or V shape of the shape on side, can also be arc-shaped, so that by the 1st pieces group 16 in the longitudinal direction Surround.3rd pieces group 20 is same, can be square brackets shape or V shape, can also be arc-shaped.
In addition, the 1st pieces 16b diameter can be identical with toothbrush 1.
As other embodiments, the 1st pieces 16b is overlooked can be square, and two diagonal of square are arranged Arrange into parallel with the width on head and length direction.Now, the 2nd pieces group 18 can be in the shape on 2 articles of sides of corresponding square The V shape (preferably L-shaped) of shape, can also be arc-shaped, so as to which the 1st pieces group 16 be surrounded in the longitudinal direction.3rd pieces Group 20 is same, can be V shape (preferably L-shaped), can also be arcuation.
In addition, the 1st pieces 16b vertical views can be rounded.Now, the 2nd pieces group 18 by the 1st pieces group 16 in the longitudinal direction Surround, can be arc-shaped or V shape.3rd pieces group 20 is same, can be arc-shaped, can also be V shape.
In addition, the 1st pieces 16b vertical views are oval, and the short axle of ellipse can be configured on the width on head, Also can be configured in the longitudinal direction.Now, the 2nd pieces group 18 can be arc-shaped or V shape, so as to by the 1st mao Beam bundle 16 surrounds in the longitudinal direction.3rd pieces group 20 is same, can be arc-shaped, can also be V shape.
[embodiment]
Hereinafter, the present invention is described in detail according to embodiment, but the present invention is not limited to following record.
[evaluation of use feeling]
10 commentators clean cavity interior with the toothbrush of each example, with following metewand evaluations neck portion now, Cleaning true feeling between facing and tooth, and the contact comfort level (adapting to sense) of each toothbrush.
(the cleaning true feeling between neck portion, facing, tooth)
5 points:Very thoughts.
4 points:Slightly feel.
3 points:Thoughts.
2 points:Substantially it is noninductive.
1 point:It is noninductive.
The average mark of the people of commentator 10 is ◎ more than 4.0, average mark more than 3.0, less than 4.0 is zero, average mark 2.0 with It is upper, be △ less than 3.0, average mark less than 2.0 be ×.
(adapting to sense)
5 points:Very thoughts.
4 points:Slightly feel.
3 points:Thoughts.
2 points:Substantially it is noninductive.
1 point:It is noninductive.
The average mark of the people of commentator 10 is ◎ more than 4.0, average mark more than 3.0, less than 4.0 is zero, average mark 2.0 with It is upper, be △ less than 3.0, average mark less than 2.0 be ×.
(overall merit)
◎:Whole ◎.
○:Zero is worst evaluation.
△:△ is worst evaluation.
×:As long as have 1 × when occurring.
[bristle]
The bristle that the present embodiment uses is as follows.
Taper hair (ST):PBT systems.
Half-cone hair (SST):PBT systems.
[embodiment 1]
According to the way shown in table 1, pieces is implanted into PP shank body, obtains Fig. 1 and Fig. 2 toothbrush 1.
[embodiment 2]
According to the way shown in table 1, pieces is implanted into PP shank body, obtains Fig. 3 and Fig. 4 toothbrush 2.
[comparative example 1]
According to the way shown in table 1, pieces is implanted into PP shank body, obtains Fig. 5 toothbrush 101.
Toothbrush 101 has the 1st pieces group 116, and clamp the 1st pieces group 116, be arranged at the front on head 12 and after A pair of the 2nd pieces groups 118 of side, and clamp the 2nd pieces group 118, be arranged at the one of the front on head 12 and rear end side To the 3rd pieces group 120.
1st pieces group 116 be implant on width 5, on length direction 5 × 3 rows of row of 3 the 1st pieces 116a and formed.2nd pieces group 118 is to implant on width 5, the 2nd mao of 5 × 2 rows of row of 2 on length direction Beam 118a and formed.3rd pieces group 120 be implant on width 4, on length direction 4 × 1 rows of row of 1 the 3rd Pieces 120a and formed.
[table 1]
As shown in table 1, increase from the middle section for planting hair side towards front and rear end side, bristle lengths step type, will What the 2nd pieces group and the 3rd pieces flock mating were set to and open wide the center direction of plant hair side, surround the 1st pieces group in the longitudinal direction In the Examples 1 and 2 of appearance, adapt to feel excellent, and cleaning true feeling is higher, tartar removes effect and improved.
On the other hand, the 2nd pieces group and the 3rd pieces flock mating are not set to and open wide the center direction for planting hair side, but along width Spend in the comparative example 1 of direction straight line configuration, adapt to feel poor, and cleaning true feeling is relatively low, it is poor that tartar removes effect.
[industrial applicability]
The toothbrush of the present invention, hair end are easily adapted to tooth on the whole, and use feeling is excellent, and there is excellent tartar to remove effect Fruit, it can efficiently remove tartar from the space between facing, tooth and neck portion etc..

Claims (4)

1. a kind of toothbrush, there is head, shank and Duo Gen bristles,
On the plant hair side on the head, multiple pieces being bundled into by the more bristles are implanted,
The bristle of the toothbrush is made up of following pieces group:
On the middle section of the plant hair side, the 1st pieces group of implantation of being alignd with any bristle lengths,
It is being alignd in the bristle lengths higher than the 1st pieces group, located at the front on the head and rear end side, two A pair of the 2nd pieces groups being separated from each other between person across the 1st pieces group, and
It is being alignd in the bristle lengths higher than the 2nd pieces group, located at the front on the head and rear end side, two A pair of the 3rd pieces groups being separated from each other between person across the 1st pieces group,
Wherein, a pair described of the 2nd pieces groups and a pair described of the 3rd pieces groups are arranged to, and open wide the plant hair side Center direction, the appearance of the 1st pieces group is surrounded in the longitudinal direction, it is in V shape that the 2nd pieces group, which is arranged to overlook, Or arc-shaped or the appearance of square brackets shape, to surround the 1st pieces group in the longitudinal direction;The 3rd pieces group is set It is in V shape or arc-shaped or the appearance of square brackets shape to be set to vertical view, to surround the 1st pieces group and institute in the longitudinal direction State the 2nd pieces group;
Herein, center direction is opened wide to mean,
It is parallel that 2nd pieces group is not arranged to relative width direction, i.e., straight line is not set in the width direction, and the 2nd pieces group In, the pieces for being configured at the both ends for the width for planting hair side is configured in, than being configured at central pieces closer to central area The position at the center in domain;From side during head, the 1st pieces group be present and the 2nd pieces group is nonoverlapping in the longitudinal direction Region, and the 1st pieces group and the overlapping in the longitudinal direction region of the 2nd pieces group;
It is parallel that 3rd pieces group is not arranged to relative width direction, i.e., straight line is not set in the width direction, and the 3rd pieces group In, the pieces for being configured at width both ends is configured in, than being configured at central pieces closer to middle section side;From side When observing head, the 2nd pieces group and the 3rd pieces group region nonoverlapping in the longitudinal direction, and the 2nd pieces group and the 3rd be present Pieces group region overlapping in the longitudinal direction.
2. toothbrush according to claim 1, the diameter of the pieces of the 2nd pieces group and the hair of the 3rd pieces group The diameter of beam, the diameter than the pieces of the 1st pieces group are small.
3. toothbrush according to claim 1 or 2, the 1st pieces group is arranged to vertical view and assumed diamond in shape,
2 diagonal of the rhombus are arranged to parallel with the length direction and width on the head respectively.
4. toothbrush according to claim 1 or 2, the 1st pieces group is arranged to overlook hexagonal, the hexagon 1 diagonal be arranged to parallel with the length direction on the head.
CN201480043820.7A 2013-08-02 2014-07-31 Toothbrush Active CN105451602B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013161454A JP6226618B2 (en) 2013-08-02 2013-08-02 toothbrush
JP2013-161454 2013-08-02
PCT/JP2014/070199 WO2015016306A1 (en) 2013-08-02 2014-07-31 Toothbrush

Publications (2)

Publication Number Publication Date
CN105451602A CN105451602A (en) 2016-03-30
CN105451602B true CN105451602B (en) 2018-04-03

Family

ID=52431833

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201480043820.7A Active CN105451602B (en) 2013-08-02 2014-07-31 Toothbrush

Country Status (4)

Country Link
JP (1) JP6226618B2 (en)
KR (1) KR102235230B1 (en)
CN (1) CN105451602B (en)
WO (1) WO2015016306A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101741443B1 (en) 2015-11-02 2017-05-31 주식회사 케이앤케이 Toothbrush head
KR200493972Y1 (en) * 2016-04-15 2021-07-08 주식회사 엘지생활건강 Toothbrush
DE102017220748A1 (en) 2017-11-21 2019-05-23 M+C Schiffer Gmbh toothbrush
CN109588849B (en) * 2018-12-04 2023-08-18 四川大学 Papanic tooth brushing auxiliary toothbrush
CN110558714B (en) * 2019-10-16 2024-07-26 扬州米客生物科技有限公司 Curved toothbrush head and toothbrush
CN111202348A (en) * 2020-03-04 2020-05-29 常州美洁时家居用品有限公司 a toothbrush
USD1026470S1 (en) 2022-03-08 2024-05-14 Colgate-Palmolive Company Oral care implement
USD1024573S1 (en) 2022-03-08 2024-04-30 Colgate-Palmolive Company Oral care implement
CN115007518B (en) * 2022-06-01 2024-12-27 上海慧纤电子科技有限公司 A production line for manufacturing RFID electronic equipment
USD1079279S1 (en) 2023-08-29 2025-06-17 Colgate-Palmolive Company Oral care implement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101056555A (en) * 2004-11-02 2007-10-17 高露洁-棕榄公司 Toothbrush and method of making the same
CN101617890A (en) * 2003-09-19 2010-01-06 吉莱特公司 Toothbrush heads

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119332U (en) * 1984-07-11 1986-02-04 政信 高島 Toothbrush that prevents toothpaste from falling off
JPH0539329A (en) 1991-08-05 1993-02-19 Tonen Corp Production of thermoplastic resin composition
US6643886B2 (en) * 2000-05-18 2003-11-11 Colgate Palmolive Company Toothbrush having an efficacious bristle pattern
JP2008154808A (en) * 2006-12-25 2008-07-10 Lion Corp Toothbrush
JP5557591B2 (en) * 2010-05-07 2014-07-23 ライオン株式会社 toothbrush
JP2012231968A (en) * 2011-05-02 2012-11-29 In Clover:Kk Toothbrush for pet
US9095205B2 (en) * 2011-06-21 2015-08-04 Joseph A. Stofko Orthodontic toothbrush

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101617890A (en) * 2003-09-19 2010-01-06 吉莱特公司 Toothbrush heads
CN101056555A (en) * 2004-11-02 2007-10-17 高露洁-棕榄公司 Toothbrush and method of making the same

Also Published As

Publication number Publication date
KR20160040517A (en) 2016-04-14
JP6226618B2 (en) 2017-11-08
KR102235230B1 (en) 2021-04-02
WO2015016306A1 (en) 2015-02-05
JP2015029698A (en) 2015-02-16
CN105451602A (en) 2016-03-30

Similar Documents

Publication Publication Date Title
CN105451602B (en) Toothbrush
US10172440B2 (en) Toothbrush having tufted bristles and tongue brush bristles emanating from the same surface
TWI516226B (en) Toothbrush
US7707676B2 (en) Toothbrush
CN103391730B (en) Toothbrush
CN103957744B (en) Toothbrush
JP5779413B2 (en) toothbrush
CN102821648B (en) Toothbrush
JP5338232B2 (en) Interdental brush
KR101165264B1 (en) Toothbrush
JP5851115B2 (en) toothbrush
CN110113963B (en) Tooth brush
JP5690523B2 (en) toothbrush
WO2004010821A1 (en) Toothbrush
AU778911B2 (en) A toothbrush with individually embedded bristles
JP2012245314A (en) Toothbrush
JP2021104237A (en) toothbrush
JP5690525B2 (en) toothbrush
CN109152470B (en) Tooth brush
JP2015036042A (en) Toothbrush
JP6429359B2 (en) toothbrush
KR102622532B1 (en) Toothbrush
KR102463635B1 (en) Toothbrush
JP2025022468A (en) toothbrush
JP2025022470A (en) toothbrush

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant