CN105828746B

CN105828746B - Toothbrush and electric toothbrush

Info

Publication number: CN105828746B
Application number: CN201480068711.0A
Authority: CN
Inventors: 森口纯; 阿部徹弥
Original assignee: Lion Corp
Current assignee: Lion Corp
Priority date: 2013-12-26
Filing date: 2014-12-18
Publication date: 2017-10-24
Anticipated expiration: 2034-12-18
Also published as: JP6170835B2; CN105828746A; JP2015123245A; KR20160103982A; WO2015098695A1

Abstract

It is a feature of the present invention that being implanted with the multiple plant pores formed on the plant hair side on head in the toothbrush of pieces, it is provided with hair side is planted：The outside pieces group that the central pieces group and the width both sides positioned at head, the outside pieces of the both sides of the width of centrally located pieces group that multiple central pieces of spread configuration are constituted on the length direction on head are constituted, the outside pieces for constituting outside pieces group is made up of taper hair, and plant gross density is 3000/cm²More than, the width of each outside pieces group of the both sides of the width on the head, width relative to the head is more than 20%, less than 30%, the height of the bristle for constituting the central pieces and the taper hair for constituting the outside pieces is below 8.5mm, and the plant gross density of the central pieces group is 400/cm²Above, 1000/cm²Below.

Description

Toothbrush and electric toothbrush

Technical field

The present invention relates to toothbrush and the electric toothbrush for possessing the toothbrush.

The present invention based on December 26th, 2013 Japanese publication Patent 2013-270313 CLAIM OF PRIORITYs, herein Quote its content.

Background technology

In recent years, the people brushed teeth in outgoing place increases, with Pocket Doltz (Co., Ltd. of Panasonic trade name) for generation Table is attracted attention with lid and less portable the peddling for (electronic) toothbrush of diameter.Now, due to needing that brush will be contained Height of head, the width of hair are together accommodated in lid, it is necessary to the thinning on head and the shortening of staple length (height of hair).Head Thinning still comes into question (clinica advantage toothbrushes (Lion Corporation's trade name) etc.) so far, but on the height of hair Shortening do not discuss fully.If reducing the height of hair merely, the hardness of hair becomes strong, and tiny place cleans difficult, and use feeling drops It is low, injure gum.Therefore, present situation is, have to use with toothbrush for children (lion in the height of hair, portable toothbrush to reduce King Co., Ltd. trade name) arranged for the pieces of the most basic toothbrush of representative.

It is efficiently to remove stain removal when brushing teeth, compared to the foam of major diameter, it more desirable to fine and smooth foam, but uses typically Hair portion style (including arrangement, species of bristle) is planted to be difficult to produce fine and smooth foam.

It is used as the technology for improving the foaming characteristic of toothpaste, it is known to set and plant 900~3000/cm of gross density²It is highly dense Degree plants hair-fields domain (with reference to patent document 1), or reduces the radical of pieces, and then by the technology of profile optimization (with reference to patent text Offer 2).

But, arbitrary prior art also can not fully reach the sophistication of foam.In addition, during the height reduction of hair, having The limitation of movement at hair end, the problem of entrance of the air required for foaming is easily insufficient.

In addition, keeping beautiful tooth more important in interpersonal relationships, it is also required in outgoing place except stain effect is higher Toothbrush.For the raising except stain effect, it is necessary to stronger bristle rigidity, but in general toothbrush, if stronger in order to may achieve The rigid bristle of bristle and reduce the height of hair, then the bending deformation at hair end obtains insufficient.To ensure the flexure at mao end, it is considered to which crossing makes Plant pore arrangement sparse (increase pitch-row (interval for planting pore)), but now, there is plant hair root number to reduce, can not be played except stain power Problem.

[background technology document]

[patent document]

[patent document 1] Japanese Unexamined Patent Publication 2013-042776 publications

[patent document 2] Japanese Unexamined Patent Publication 2003-250632 publications

The content of the invention

[the invention problem to be solved]

The present invention is to solve above-mentioned problem, it is therefore intended that fine and smooth can also be risen in below 8.5mm there is provided the height of hair Bubble, and outward appearance is good, brush sweeps true feeling and then removes the excellent toothbrush of stain.

It is further an object that there is provided the electric toothbrush that shank is provided with toothbrush as characterized above.

[means to solve the problem]

To reach above-mentioned purpose, the present invention uses following structure.

[1] a kind of toothbrush, the front end of neck is provided with head, the multiple plant pores formed on the plant hair side on the head Pieces is implanted, wherein,

The plant hair side is provided with：During multiple central pieces of spread configuration are constituted on the length direction on the head Entreat pieces group, and width both sides positioned at the head and positioned at the outer of the width both sides of the central pieces group The outside pieces group that side pieces is constituted,

The outside pieces for constituting the outside pieces group is made up of taper hair, and plant gross density is 3000/cm²More than, institute State the width both sides on head each outside pieces group width relative to the head width for more than 20%, 30% with Under,

The height of the bristle for constituting the central pieces and the taper hair for constituting the outside pieces is 8.5mm Hereinafter,

The plant gross density of the central pieces group is 400/cm²Above, 1000/cm²Below.

[2] toothbrush recorded according to [1], total plant hair root number of the bristle of the central pieces group and outside pieces group The taper hair total plant hair root number ratio be more than 0.05, less than 0.25.

[3] toothbrush recorded according to [1] or [2], height of the height than outside pieces group of the central pieces group It is low.

[4] toothbrush recorded according to any one of [1]~[3], the section of the bristle is irregular shape section.

[5] toothbrush recorded according to any one of [1]~[4], what the hair end of the central pieces group was trimmed to is shaped as Waveform.

[6] toothbrush recorded according to any one of [1]~[5], in 1 plant pore, the outside ratio of the outside pieces Inner side is short, and its staple length difference is 0.5~1.5mm.

[7] a kind of electric toothbrush, toothbrush of the front provided with the record of any one of [1]~[6] of its shank.

To reach above-mentioned purpose, other modes of the invention use following structure.

The toothbrush of the present invention is characterised by that the front end of neck is provided with head, is formed on the plant hair side on the head It is implanted in multiple plant pores in the toothbrush of pieces, the plant hair side is provided with the spread configuration on the length direction on the head The central pieces group that constitutes of multiple central pieces, and width both sides positioned at the head and positioned at the central pieces The outside pieces group that the outside pieces of the both sides of the width of group is constituted, constitutes the central pieces group and the outside pieces The hair of any bristle of group is highly below 8.5mm, and the bristle of the outside pieces group is taper hair, is 3000 cm²More than High density plant hair, the width of each outside pieces group of the width both sides on the head is relative to the width on the head More than 20%, less than 30%, the plant gross density of the central pieces group is 400/cm²Above, 1000/cm²Below.

In the toothbrush of the present invention, total plant of the total plant hair root number and taper hair of the bristle of preferably described central pieces group The ratio of hair root number is less than more than 0.05 0.25.

In the toothbrush of the present invention, the height of preferably described central pieces group is lower one section than the height of outside pieces group.

In the toothbrush of the present invention, the bristle in irregular shape section can be used in the central pieces.

In the toothbrush of the present invention, the shape that the hair end of the central pieces group is trimmed to can be waveform.

In the toothbrush of the present invention, in planting pore at 1, the outside of the outside pieces is shorter than inner side, and its staple length difference can be with For 0.5~1.5mm.

The electric toothbrush of the present invention is characterised by that the front of shank is provided with any toothbrush recorded before.

[The effect of invention]

It is the bristle for constituting central pieces and the taper for constituting outside pieces according to the present invention, it is possible to provide a kind of toothbrush Hair height be below 8.5mm, the portable toothbrush shorter than general toothbrush, by make outside pieces group for taper hair, with And 3000/cm²High density above plants hair, and the foaming of toothpaste while staple length shortens, can be made to be bubbled to be fine and smooth.

Further, by making to be made up of taper hair, positioned at head width both sides each outside pieces group width Spend for 20~30% relative to head width, it can be ensured that as the necessary width of outside pieces group, feel well as contact Toothbrush, it is possible to provide do not make the width of outside pieces group excessive, the motion smoothing of taper hair, the excellent tooth of motion easness of hair Brush.

In addition, being 400/cm by making the plant gross density of central pieces group²Above, 1000/cm²Below, it is possible to provide While staple length shortens, possesses the toothbrush for sufficiently removing stain power.

In the toothbrush of the present invention, by making height low single order of the height than outside pieces group of central pieces group, it can make to connect Sense of touch is good.

In the toothbrush of the present invention, by making the section of bristle of central pieces group be irregular shape section, it can improve except stain Power.Herein, " section " is meant, section when being cut off from the vertical direction of relative length direction.

In the toothbrush of the present invention, by the way that in 1 plant pore, the outside of outside pieces is shorter than inner side, its staple length difference is 0.5 ~1.5mm, the motion easness at hair end is further improved, and is improved the effect of the entering to gum portion.

The toothbrush of the present invention, is suitable as electric toothbrush use, by being provided with above-mentioned toothbrush on the front end of shank, can carry The electric toothbrush suitable for carrying is provided as, the foaming of toothpaste is bubbled to be fine and smooth while staple length is shortened, foaming characteristic is good Electric toothbrush.In addition, as electric toothbrush, during using the structure that lid can be assembled on brush part, staple length, dress can be being shortened With there is provided the electric toothbrush that portability is good in the state of lid.

Brief description of the drawings

[Fig. 1] shows the oblique view of a part for the toothbrush of first embodiment of the present invention.

The plan of the part of [Fig. 2] same toothbrush.

[Fig. 3] shows the side view of one of the shape that the central pieces group in same toothbrush is trimmed to.

[Fig. 4] shows the side view of one of the upper set taper hair of the outside pieces group of same toothbrush.

[Fig. 5] shows the oblique view of one of the upper set bristle of central pieces group of same toothbrush.

The side view of the structure of one of electric toothbrush of [Fig. 6] displaying provided with same toothbrush.

The plan of one of the toothbrush used in [Fig. 7] displaying embodiment.

[explanation of symbol]

1 ... toothbrush, 2 ... necks, 3 ... heads, 3A ... plant hair side, 5 ... outsides and plant pore, 6 ... center plant pores, 7 ... outside It is side pieces group, 8 ... central pieces groups, 10 ... tapers hair, 11 ... outside pieces, 12 ... bristles, 13 ... central pieces, 20 ... electronic Toothbrush, 30 ... lids.

Embodiment

Hereinafter, referring to the drawings, first embodiment of the present invention is described in detail.

In this specification, length direction means the direction parallel with axis L, and width is meant and axis L Vertical direction.

Fig. 1 and Fig. 2 illustrate the toothbrush of present embodiment.The toothbrush 1 of present embodiment is provided with the front of neck 2 The plate head portion 3 of narrower width.

Head 3 is the generally rectangular tabular along the axis L extensions of neck 2, on the plant hair side 3A of one surface side, Multiple plant pores 5,6 are formed with along the length direction (direction parallel with axis L) on head, these, which are planted in pore 5,6, is implanted into Bristle, forms pieces group 7,8.

As one of head 3, below length 15mm above 20mm left and right, more than thickness 2.0mm, 4.0mm are formed as Following left and right, the size of more than width 7.5mm, below 10.5mm left and right.Length (that is, the front in the plant hair-fields domain on head Hair line to the hair line of neck side length) preferably 15~20mm.In addition, the width (that is, two in the plant hair-fields domain on head The distance of the hair line of side) preferably 6.0~9.5mm.By within the range, it can be ensured that sufficient pieces.

The material for constituting neck 2 and head 3 is to consider rigidity and mechanical property that toothbrush 1 sought etc. and select, example Such as, the modulus of elasticity in static bending (JIS K7203) is more than 500MPa below 3000MPa high hardness resin.As such high hard Resin is spent, can be lifted for example, polypropylene (PP), polyethylene terephthalate (PET), cyclohexanedimethanol's two methylenes of support Base ester (PCT), polystyrene (PS), acrylonitrile-butadiene-styrene resin (ABS), cellulose propionate (CP), polyarylate, Makrolon and acrylonitritrile-styrene resin resin (AS), polyformaldehyde (POM) etc..Wherein, preferably POM.These resins can With individually a kind of, appropriately combined two or more it can also use.

In the head 3 of present embodiment, in the both sides of its width (close to the long side (end) of the both sides on head 3 Position) on, with specified interval, it is formed with multiple (being 5 in Fig. 1 example) outsides along the length direction on head 3 and plants pore 5.Planted on the outside of these on pore 5, plant hair means implantation toper hair 10 by using lenticular wire etc., planted on the outside of each in pore 5, shape Into having by the outside pieces 11 that constitutes of aggregate of taper hair 10, by 5 outside pieces 11, the width on head 3 On both sides, outside pieces group 7 is respectively constituted.Outside pieces 11 can be in the longitudinal direction 1 row, or more than 2 row.

The diameter of pore 5 is planted in the outside that is formed on the both sides of the width on head 3, relative to the width on head 3, preferably More than 20%, less than 30% scope, more preferably more than 25%, less than 28% scope.

In other words, in the toothbrush 1 of present embodiment, the width of each outside pieces 11, relative to the width on head 3, preferably More than 20%, less than 30% scope.This is due to that the height of the outside pieces 11 of the aggregate as taper mao 10 is 4.5mm Above, below 8.5mm, is the staple length more shorter than general toothbrush, is in order that while excellent to the contact sense of gum, it is ensured that The brush of gum sweeps sense, fine and smooth foaming of toothpaste etc. and necessary scope.

Outside plant pore 5 diameter relative to head 3 short of width 20% when, the contact sense to gum is poor.Outside When the diameter of plant pore 5 is excessive more than 30%, the motion that the hair for the taper hair 10 being implanted into pore is planted in outside is poor.

The one of taper hair 10 is for example shown in Fig. 4.Fig. 4 taper hair 10 is generally a cylindrical shape, is from base portion 10a towards before it End 10b, the shape that its diameter is gradually reduced.In present embodiment, the taper hair 10 protruded from the opening portion of each plant pore 5 Length (staple length) is substantially isometric.

On head 3, the region between outside pieces 11,11, i.e., on the width on head 3, pieces 11,11 is sandwiched In region (hereinafter also referred to " center side of width "), on the length direction on head 3, it is formed with specified interval many Plant pore 6 in row (being 3 row in Fig. 1 example) center.Centre is planted in pore 6 in these, and planting hair means by using lenticular wire etc. is implanted into By the bristle 12 that constitutes of straight hair with irregular sections such as star cross-sectional shapes, planted in each center in pore 6, be formed with by The central pieces 13 that the aggregate of bristle 12 is constituted.Straight hair refers to that (angle of leading section is chamfered except the circular portion of front end Part), its cross sectional shape and the roughly the same bristle of sectional area.Irregular shape section means, the section shape of bristle 12 Shape is the shape beyond circle.One of the bristle 12 being made up of the straight hair of star cross section is illustrated in Fig. 5.Present embodiment In, by the center side of the width on head 3 the central pieces 13 of arrangement form constitute central pieces group 8.

Central pieces 13 can more than 3 row, can also be arranged less than 3.During the 3 row above, preferred arrangement is plover shape.

The cross sectional shape of bristle 12, is contemplated to be the irregular section shapes such as star, cloverleaf pattern, bunge bedstraw herb shape, but also may be used To be circular, ellipse, polygon (such as triangle, quadrangle, pentagon, hexagon) prismatic shapes.In addition, also may be used Be taper hair.On taper hair, it can be used and identical thing cited in the explanation of outside pieces 11.

As taper hair 10 or the constituent material of bristle 12, it can lift for example, polyamide (example：6-12 nylon, 6-10 nylon), Polyester (example：Polyethylene terephthalate, polybutylene terephthalate (PBT), PTT), polyene Hydrocarbon (example：Polypropylene), elastomer (example：Olefin-based, polystyrene) etc. synthetic resin material.These synthetic resin materials, can be with 1 Plant and be used alone or in combination of two kinds or more.In addition, taper hair 10 or bristle 12 can be with core and in the outside of the core The multiple cored structure of at least more than 1 layer of the sheath portion set.

Though the thickness of the most thick portion point of taper hair 10 is not particularly limited, excellent based on the more preferable point of contact sense to gum Choosing is thinner.For example, it is preferable to more than 3mil, the scopes of 5mil (1mil=1/1000 inches=0.025mm) below.Less than 3mil's Taper hair, the closeness of hair is too high, and taper Maonans is to move.Thickness exceedes 5mil taper hair, it is difficult to realize described later highly dense Degree plants hair.If scope of the thickness of taper hair 10 in 3~5mil, while making the contact sense to gum more preferable, can make outside 1 It is more that radical implantable in pore 5 is planted in side, it is easy to which high density plants hair.Herein, high density is planted hair and referred to, 3000/cm²~ 12000/cm²Plant hairy state.

The bristle of pieces is constituted, the bristle of different thicknesses of more than two kinds can also be combined with all identical thicknesses.

The thickness of bristle 12, though it is not particularly limited, based on except the stain point good with the contact sense to gum, preferably thickness For more than 7mil, below 9mil scope.In the thickness being made up of above-mentioned resin material, if in the range of 7~9mil, It can obtain to the bristle 12 except the effective bristle rigid of stain.

Taper hair 10 staple length (from plant pore 5 opening portion protrude length), it is considered to portability and be formed 4.5mm Above, below 8.5mm scope, more preferably more than 5.0mm below 7.5mm scope.As one of the staple length of taper hair 10, 6.0mm can be used.

The staple length of bristle 12, can with taper hair 10 it is identical or than taper hair 10 shorter staple lengths.Make bristle 12 than cone Shape hair 10 in short-term, can be selected than taper 10 short values of hair in below 8.5mm, more than 4.5mm scope.

In taper hair 10 and bristle 12, if staple length is selected less than 4.5mm, the motion of hair and contact sense variation, thus hope Above-mentioned scope.In addition, when staple length is less than 4.5mm, the balance between the thickness on head 3 is poor, and outward appearance is bad.

The height ratio of taper hair 10 and bristle 12 is expressed as the height of hair [taper]/[height of bristle 12], preferably 1.0~ 2.0, more preferably 1.0~1.2.

The pieces of taper hair 10 is planted at 1 in pore, and outside is shorter than inner side, by making its staple length difference be 0.5~1.5mm, The motion easness at hair end, the entering to gum portion are improved.Refer on the outside of pieces, using the sectional area of pieces as 100 faces During product %, account for and refer on the inside of the part of the pieces in 0~50% region, pieces from the edge part of pieces, with cutting for pieces When area is 100 area %, the part of the pieces in 0~50% region is accounted for from the central part of pieces.

The plant gross density (the plant gross density of outside pieces 11) of taper hair 10, in order to obtain toothpaste fine and smooth foaming, it is necessary to 3000/cm²High density above plants hair, preferably 3500/cm²High density above plants hair.In addition, the plant hair of taper hair 10 The upper limit of density preferably 12000/cm².If planting, gross density is too high, and the motion of taper hair 10 becomes difficult, to the entering in gum portion The feature come Deng taper untrimmed book may be damaged.Gross density is planted less than 3000/cm²When, it is difficult to exquisiteness foaming.

In addition, the plant gross density preferably 400/cm of central pieces group 8²Above, 1000/cm²Below.Central pieces group 8 If plant gross density less than 400/cm²When, except stain power is not enough, more than 1000/cm²Plant gross density when, contact sense be deteriorated.

The plant gross density more preferably 700/cm of central pieces group 8²Above, 1000/cm²Below.

The calculating for planting gross density is calculated by following two formulas, and the total plant hair root number in center plant gross density=center/in Plant the area in hair-fields domain, outside and plant the area that hair root number/outside plant hair-fields domain is always planted in gross density=outside in centre.

The area in center plant hair-fields domain means the plant gross area of central pieces group 8, is to constitute central pieces to surround The central pieces 13 of group 8 and draw the area in the region that tangent line links in the periphery for planting pore.In other words, it is that hair is planted by center The area in the region that the area that the periphery of pore 6 is planted in the area in hole 6 and center is constituted.The area in hair-fields domain is planted in center, to plant hair When the face 3A gross area is 100 area %, preferably 30~50 area %.The area that hair-fields domain is planted in outside means outside pieces The plant gross area of group 7, is the summation for the area that pore 5 is planted in outside, refers to surround the outside pieces of each outside pieces group 7 of composition 11 and plant pore periphery draw the region that tangent line links area summation.In other words, it is by the face of outside plant pore 5 The area in the region that the area that the periphery of pore 5 is planted in product and outside is constituted.The area in hair-fields domain is planted in outside, to plant the total of hair side 3A When area is 100 area %, preferably 50~65 area %.

In the toothbrush 1 of present embodiment, total plant hair root number of the bristle 12 of central pieces group 8 is straight with outside pieces group 7 The ratio of total plant hair root number of shape hair 10 is expressed as, and [total plant hair root number of the bristle 12 of central pieces group 8]/[outside pieces group's 7 Total plant hair root number of taper hair 10], preferably more than 0.05, less than 0.25.It is to plant the total plant hair root number/outside in hair root number ratio=inner side Total relation for planting hair root number.

By meeting the relation, it can obtain to the advantage for contacting sense of gum and except stain power.Feel more preferable model as contact Enclose, total ratio for planting hair root number is more than 0.05, less than 0.15, be as the ratio except the more preferable scope of stain power, total plant hair root number More than 0.09, less than 0.20 scope is preferred.

In the toothbrush 1 of present embodiment, the plant gross area of central pieces group 8 and the plant gross area of outside pieces group 7 compare table It is shown as [the plant gross area of central pieces group 8]/[plant gross area of outside pieces group 7], preferably less than 0.9 scope.Based on true Protect the viewpoint except stain, preferably 0.50~0.90 scope, more preferably 0.70~0.90 scope.Gross area is planted than less than 0.5 When, stain cannot be sufficiently removed, during more than 0.90, contact sense is deteriorated.

Vertical section on central pieces 13, i.e. section when being cut off in vertical direction along axis L shape (with Hair end trimming shape is also referred to as down), as shown in figure 3, it is preferred that triangle wave mode (hereinafter also referred to " wave mode ").By making central pieces The vertical section of group 8 is triangle wave mode, be can further improve except stain effect.Now, preferably staple length highest bristle and staple length are minimum Bristle difference be 0.5~2.0mm.Preferably 80~120 ° of the angle of vertex of a triangle.It is preferred that on a head, triangle Summit be configured to 3~8.

When the vertical section for making central pieces group 8 is waveform, in central pieces group 8 highest bristle (bristle of convex portion) with it is outer Minimum bristle (bristle of recess) in difference preferably 1~3mm of the height of the hair of bristle in side pieces group 7, central pieces group 8 With difference preferably 1.5~4mm of the height of the hair of the bristle in outside pieces group 7.

In addition, when the vertical section for making central pieces group 8 is waveform, the shape on the top of the bristle 12 in central pieces group 8 It is preferred that the shape being chamfered.

It is used as taper hair 10, the fur planting method of bristle 12, the applicable method that lenticular wire is squeezed into plant pore, thermal welding side Method known to method etc..

In the method for lenticular wire is squeezed into, many of bristle is done up, doubling, by sandwiching consolidating referred to as lenticular wire in-between Apparatus is determined to squeeze into plant pore, and pieces is implanted into each plant pore.

When lenticular wire is driven into plant pore, by planting the central part of pore, and across plant pore.As the material of lenticular wire, It can lift for example, the metal such as brass or stainless steel, other can enumerate rigid plastics or biodegradable plastic etc..

The length or width of lenticular wire, thickness, are suitable for pieces or plant pore and arbitrarily adjust, but generally, the length of lenticular wire More than the diameter for planting pore, the width of lenticular wire is less than the depth for planting pore.In addition, the thickness by adjusting lenticular wire, can be by pieces It is fixedly secured planting in pore, reduces space.In addition, in order to prevent that lenticular wire stretches out from the both sides for planting pore from pore abjection is planted Part length it is total be preferably 0.3~0.6mm.

In addition, the toothbrush 1 shown in Fig. 1 is the oblique view of the model for the summary for showing toothbrush, although constitute outside pieces 11 Taper hair 10, the bristle 12 that constitutes central pieces 12 be all drawn as identical length, but according to the plant hair using lenticular wire The staple length of complete and homogeneous is can not be between taper hair 10 after method etc., plant hair, between bristle 12, length there can be some not Together.In addition, planting after hair, taper hair 10 and bristle 12 need not all be exactly perpendicularly to plant hair side 3A, can be planted some plants of Mao Weicong Pore 5,6 is gently towards outer expandable.

The toothbrush 1 of result shown in Fig. 1, is that the hair for making any bristle of central pieces group 8 and outside pieces group 7 is highly Below 8.5mm, the portable toothbrush 1 more shorter than general toothbrush, by making outside pieces group 7 be made up of, carry out taper hair 10 3000/cm²High density above plants hair, and the foaming of toothpaste can be made to be bubbled to be fine and smooth.

By making the height of central pieces group lower than the height of outside pieces group, contact sense can be made good.

Further, by making outside pieces group 7 be made up of taper hair 10, the both sides of the width positioned at head 3 are made Each outside pieces group 7 width, relative to head 3 width be 20~30% scope, it can be ensured that be used as outside pieces group 7 Necessary width, as the good toothbrush 1 of contact sense, the motion smoothing of taper hair 10 can be made.

Distance preferably 0.5~1.0mm of group 7 from the end of the width on head to each outside pieces.

In the toothbrush of the present invention, total plant hair root number of the bristle 12 in central pieces group 8 and the taper hair of outside pieces group 7 The ratio of 10 total plant hair root number is expressed as [total plant hair root number of bristle 12]/[total plant hair root number of taper hair 10], by being allowed to For more than 0.05, less than 0.25, it can be ensured that there is provided the toothbrush for effectively removing stain for the quantity of the bristle 12 of central pieces group 8.

The size of pore 5 is planted in outside, each can be the same or different.It is preferred that a diameter of 2.0~2.6mm.

The size of pore 6 is planted in center, each can be the same or different.It is preferred that a diameter of 1.0~1.4mm.

The ratio that the diameter that pore 5 is planted in the diameter of pore 6 and outside is planted in center is expressed as the diameter of pore 6 [center plant]/[outer Plant the diameter of pore 5 in side], preferably 0.4~0.7.

From the central part of central pieces 13 to distance preferably 1.0~2.0mm of the central part of immediate central pieces 13.

From the central part of central pieces 13 to distance preferably 2.0~3.0mm of the central part of immediate outside pieces 11.

Total beam number of central pieces 13 in central pieces group 8 and total beam number of the outside pieces 11 in outside pieces group 7 Ratio be expressed as [total beam number of central pieces 13]/[total beam number of outside pieces 11], preferably 1.0~2.0.

The toothbrush 1 of present embodiment, is applicable to the electric toothbrush shaken by electrically driven.For example, in lion king strain Embodiment 1 is used on the brush part of DENTOR SYSTEMA (the システマ of デ Application タ mono-) sound wave auxiliary toothbrushes of formula commercial firm ~7 toothbrush, while being shaken by electric drive in the case of use, foaming faster, while foam diameter is smaller, is bubbled Property is further improved.Further, except stain effect is improved.

As electric toothbrush 20, as one for example shown in Fig. 6, it can be enumerated as one, in the inside of the shank 21 of cartridge type, Battery 25 is hidden waterproofly and the control circuit (diagram is omited) of the driving in each portion is controlled, in the front of shank 21 Portion, hides the oscillator 27 for producing the vibrations such as vibration of ultrasonic wave and acoustic wave vibrations, the open rearward end portion side of shank 21 is provided with electricity The lid A28 of pond dismounting a, part for shank 21 is provided with the electric toothbrush of operation button.Further, it is contemplated that portability, preferably The lid B30 of cartridge type shown in Fig. 6 is detachably assemblied in the structure of the front of shank 21.

Battery 25 can be one-shot battery (for example, No. 5 or No. 7 dry cells) or secondary cell (for example, NI-G Battery, Ni-MH battery, lithium ion battery).

Control circuit is connected with battery 25, when user's operation setting is in operation button on shank 21, according to the behaviour Make generation control signal, based on the control signal, the driving of the power supply of the aftermentioned oscillator of control, and oscillator.

Oscillator 27 is electrically connected by distribution with the control circuit in above-mentioned shank 21, is shaken during supply electric power.

In addition, electric toothbrush 20 can not also possess above-mentioned control circuit, for example, operation button can be operated in user When, electric power, drive vibrator are directly fed from battery to oscillator.

The connecting portion 21a of anterior narrowed shape is formed with the front of shank 21, on connecting portion 21a leading section, It is formed with the cardinal extremity 2b of neck 2 for connecting toothbrush 1 metal connecting pin 21b.Shape on the lower surface of the cardinal extremity 2b Into the patchhole having for inserting the connecting pin 21b, by the way that to the insertion connecting pin 21b that inserts in the hole, toothbrush 1 is removably It is installed on shank 21.

Previously described toothbrush 1 is the toothbrush 1 for having reached above-mentioned various excellent action effects, thus, as shown in fig. 6, During suitable for electric toothbrush 20, in Portable electric toothbrush 20, by making outside pieces group 7 be made up of taper hair 10, carry out 3000/cm²High density above plants hair, and the foaming of toothpaste can be made to be bubbled to be fine and smooth.When staple length is shorten into below 8.5mm, The excellent gum portion brush of the entering to gum portion brought by taper hair 10 can be provided and sweep the excellent electric toothbrush 20 of true feeling.

Further, by make the width of outside pieces group 7 that taper hair 10 constitutes relative to the width on head 3 for 20~ 30%, it can be ensured that the necessary width of outside pieces group 7, as the electric toothbrush 20 for not producing the sparse sense of bristle in appearance, make outer The width of side pieces group 7 will not be excessive, makes the motion smoothing of taper hair 10, it is possible to provide the soft gum of the contact temperature-sensitive to gum portion The excellent electric toothbrush 20 of cleaning property.Especially in electric toothbrush 20, outside pieces 13 is set to be connect with gum portion while vibrations When touching, compared with it is manually operated when, the brush that outside pieces 13 is brought sweeps sense and becomes strong, even if thus as electric toothbrush 20 in use, The motion smoothing of taper hair 10, does not hinder the contact to gum portion, thus can obtain good gum portion brush and sweep sense.

Must be smaller than outside plant pore 5 in addition, the center plant pore 6 for constituting central pieces 13 is formed, thus can provide simultaneous Turn round and look at the electric toothbrush 20 that good and gum portion the cleaning of contact sense in gum portion is improved.

Further, total plant hair of total plant hair root number of the bristle of central pieces group 8 and the taper hair 10 of outside pieces group 7 The ratio of radical is expressed as [total plant hair root number of the bristle of central pieces group 8]/[total plant hair of the taper hair 10 of outside pieces group 7 Radical], by being allowed to as more than 0.05, less than 0.25, it can be ensured that there is provided effectively remove for the quantity of the bristle 12 of central pieces group 7 The electric toothbrush 20 of stain.

In electric toothbrush 20, by the way that lid 30 is assembled on shank 21, hiding toothbrush 1 can be covered, accordingly, can be in carrying The excellent state of property.For example, when being contained in handbag or bag, cosmetic case etc., toothbrush 1 can be prevented to be contaminated.

In addition, in order to which Portability is excellent, when lid is cylindrical shape, it is desirable to which the diameter of lid 30 (is determined from the outside of lid Diameter) it is as far as possible small.

If for example, assuming together to be contained in cosmetic case by cosmetics such as women and lipsticks, it is contemplated that straight with lipstick etc. Footpath, which is compared, will not damage Portability, it is desirable to a diameter of 14~φ of φ 20mm of lid 30 or so.Therefore, if in view of lid 30 Diameter, the outer wall thickness of lid 30, the thickness on the head 3 of toothbrush 1 are for 3mm or so, it is desirable to which the staple length of taper hair 10 is, such as toothbrush Described more than 4.5mm below 8.5mm scope in 1 explanation.

In addition, as stated previously, the effect by being obtained provided with toothbrush 1 can be obtained.

In addition, when being shaped as cubic of lid, preferable width is 9.0~20mm, depth is 12~20mm.

[embodiment]

The way recorded according to table 1, the toothbrush of shape shown in trial-production Fig. 7.

In the toothbrush of trial-production, the outside of the diameter shown in table 1 is set to plant pore, in head (long 18.95mm, width 8.7mm, thickness Be equidistantly each 5 on both sides 3.5mm), adjacent outside plant between pore at intervals of 3.20 (distance between centers) mm, formed Pore is planted on the outside of 10 or 12 (embodiment 7) altogether.These outsides are planted in pore, with the plant gross density shown in table 1, use lenticular wire Implantation toper hair (ST described in table 1), it is 6mm to make staple length.Table 1 describes the area, outer that bristle diameter, outside plant hair-fields domain Plant gross density, hair end trimming shape (profile) in side.The profile 1mm of embodiment 8 refers to, plants in pore, outside is shorter than inner side, its hair Long difference is 1mm.

[table 1]

In addition, pore is planted as center, the center side on head, diameter shown in formation table 1 on the length direction on head Center plants pore and adds up to 17, and pore 6, the central plant pore 5 of inner side, the center plant in outside are planted in the center in respectively outside Pore 6, is formed as plover shape.Plover shape means that pore is planted in the center in the specific row arranged in the direction of the axisl Spacing center position on, the adjacent row that are arranged center plant pore.When being configured to plover shape, the length side on head The spacing that the adjacent center arranged upwards is planted between pore is that pore is planted in the center configured on 1.6mm, the width on head Column pitch is 0.9mm.The interval (distance between centers) for planting pore along the outside of the width on head is set to 4.90mm, head 2 centers spacing distances for planting pores and head front center of front position arrangement be set to 2.35mm.

Centre is planted in pore in these, and with the plant gross density shown in table 1, the straight hair (blade profile of cross section five is implanted into lenticular wire： Star) staple length 5mm.Diameter, bristle diameter, the area in center plant hair-fields domain, the center plant hair of central plant pore have been recorded in table 1 Density, the shape (profile) of hair end trimming.In table, the triangle wave mode that is shaped as of the expression hair end trimming of " insertion waves " (most becomes mildewed Long (to the length at the top of ripple) is 5mm, the staple length difference of most undercoat length (to the length of the bottom of ripple) and most long staple length for 1.0~ 1.5mm), " plane " is meant, the shape of hair end trimming is level.

As comparative example, toothbrush is made based on each way shown in table 2.With the toothbrush and the toothbrush of comparative example of embodiment, Carry out following evaluation experimental, each experimental result record in the lump with Tables 1 and 2.

The toothbrush that each embodiment and each comparative example are installed on machine is swept in the brush of Lion Corporation, and then is swept in brush on plate 1g toothpaste and the water of 2 multiple doses are loaded onto, brushing force=200g, brush is swept 60 times.After having brushed, reclaim foam, with light microscope with Machine determines the diameter of 20 bubbles.The diameter of bubble is smaller, and the foam of generation is finer and smoother.Numerical value in table represents the diameter (mm) of bubble.

Metewand is as follows.

◎：The average diameter of 20 bubbles is less than 0.12mm

○：The average diameter of 20 bubbles is more than 0.12mm, less than 0.16mm

△：The average diameter of 20 bubbles is more than 0.16mm, less than 0.20mm

×：The average diameter of 20 bubbles is more than 0.20mm

[table 2]

The organoleptic test evaluation made by the people of expert group 10.The motion easness of the hair of toothbrush is commented according to following benchmark Valency.

4 points：The hair of toothbrush is fully bent, very the kinesthesia of hairiness.

3 points：The hair flexure of toothbrush, the kinesthesia of hairiness.

2 points：The Maonans of toothbrush is to bend, it is difficult to feel that hair is moved.

1 point：The hair of toothbrush is not bent, it is impossible to feel that hair is moved.

The evaluation result of 10 people is averaged, according to following benchmark, the motion easness of ◎ and zero hair has been will ensure that Toothbrush, is judged as the good toothbrush of the motion easness of hair.

◎：Less than more than 3.5 points 4.0 points

○：More than 3.0 points less than 3.5 points

△：More than 2.0 points less than 3.0 points

×：Less than 2.0 points

1. spot adheres to HAP manufacture method

Hydroapatite particles (HAP) surface (HOYA Corp.'s system, diameter 7mm × thickness 3.5mm) is used into blasting treatment Afterwards, in the neutral lotion aqueous solution, cleaned with sonic washing machine.Surface (10 minutes) are etched with 30% phosphate aqueous solution, Washing, is spontaneously dried.For above-mentioned HAP, with the citric acid of the 0.5% albumin aqueous solution → tannic acid extract solution → 0.6% Iron (III) aqueous ammonium, the repeated impregnations operation of each 1 hour is repeated 50 times, carries out air-drying for 1 day at normal temperatures, clear with flowing water Wash, then air-dry, make the HAP of spot attachment.

In addition, tannic acid extract solution is in the ion exchange water 1200mL of boiling, Japanese tea (trade mark is put into：Lao Song) 50g, five bags of black tea (Amada Co., Ltd. of Uniliver system, BRISK tea bags), instant coffee (trade name Nescafe, nest day This Co. Ltd. system) 12g, places an evening, Japanese tea and black tea is removed by filtration and makes.With beam splitting type colour difference meter (day This electricity Se Industrial Co., Ltd system, model：SE-2000 the color on the HAP of the spot attachment made surface) is determined, by its value It is used as L1.

2. except stain experiment

1g dentifrice composition is diluted in the pure water of 2 times of amounts, toothpaste dispersion liquid is made.By what is made in aforementioned manners The hydroapatite particles of ferric tannate spot attachment are impregnated in toothpaste dispersion liquid, to each embodiment and the tooth of each comparative example Brush, with following method evaluation.

The toothbrush that each embodiment and each comparative example are installed on machine is swept in the brush of Lion Corporation, brushing force=200g is surveyed Fixed brush sweeps the Lab values (L2) of the HAP after 20 times.Based on lower note formula, calculate except stain amount.

Ferric tannate spot removal amount=L2-L1

According to except stain amount, according to the benchmark of lower note, evaluate and remove stain effect.Numerical value in table represents to remove stain amount.

Except the metewand of stain effect

◎：Except stain amount more than 12

○：Except stain amount more than 9, less than 12

△：Except stain amount more than 6, less than 9

×：Except stain amount is less than 6

The organoleptic test evaluation made by the people of expert group 10.Toothbrush is commented with following benchmark the contact sense of gum Valency.

4 points：Not bitterly, contact sense is very good for gum.

3 points：Gum not bitterly, feel by contact.

2 points：Gum feels a little pain.

1 point：Gum feels very pain.

The evaluation result of 10 people is averaged, according to following benchmark, ◎ and zero contact sense has been will ensure that, has been judged as connecing The good toothbrush of sense of touch.

◎：Less than more than 3.5 points 4.0 points

○：More than 3.0 points less than 3.5 points

△：More than 2.0 points less than 3.0 points

×：Less than 2.0 points

◎：Whole ◎.

○：Zero is worst evaluation.

△：△ is worst evaluation.

×：As long as have 1 × when occurring.

Based on the result shown in table 1, possesses the center that multiple bristles of the spread configuration on the length direction on head are constituted In the toothbrush for the outside pieces group that pieces group and taper hair are constituted, any bristle of central pieces group and outside pieces group are constituted When the height (staple length) of hair is below 8.5mm, taper hair is 3000/cm²High density above plants hair, the pieces group in outside Width is 20~30% relative to the width on head, and the plant gross density of central pieces group is 400/cm²Above, 1000/cm² Following toothbrush has following characteristics.I.e., it is possible to provide the fine and smooth foaming characteristic of toothpaste, the motion easness at hair end are excellent, head two The taper hair that side is set exists with necessary sufficient ratio, thus pieces group in outside is without the sparse sensation of bristle, and outward appearance is excellent It is different, by the presence of central pieces group except the excellent toothbrush of stain.

On the other hand, the toothbrush of comparative example 1, it is 2496/cm that gross density is planted in the outside of taper hair², less than 3000/ cm², thus the aspect of fine and smooth foaming is not enough.

The toothbrush of comparative example 2, be outside plant pore diameter it is smaller, 1 outside pieces faciation for head width Ratio is less than 20% 18.4% toothbrush, but because the width of outside pieces group is smaller, with the sensation that bristle is sparse, outside See good aspect poor.That is, even if gross density is planted more than 3000/cm in the outside of taper hair², also can be because of outside pieces group Width is smaller, the sparse sense of bristle with observation toothbrush when overall.Further, since the width of outside pieces group is smaller, toothbrush Contact sense is poor.

The toothbrush of comparative example 3, is the example that the diameter for making outside plant pore increases to 34.5% relative to head width, but Relative to the width on head, the width of pieces group is excessive on the outside of 1 group, and limitation is produced to the motion easness of taper hair.In addition, in Centre plant gross density is smaller, except stain power is not enough.

The toothbrush of comparative example 4 is that staple length is foreshortened to 4.0mm's by the bristle of central pieces and the taper hair of outside pieces Sample.When staple length is too short, though relative to the width on head outside pieces width be desired value, and plant hair root number ratio schedule to last Prestige value, can also lose the motion easness of hair, damage the good of outward appearance, and contact sense is also deteriorated.

The toothbrush of comparative example 5 is that gross density is planted more than 1000/cm in center²Excessive example, the motion easness of hair It is impaired, except stain amount is also not enough.

[industrial applicability]

It is the height of the hair of any bristle of central pieces group and outside pieces group according to the present invention, it is possible to provide a kind of toothbrush Degree is below 8.5mm, the portable toothbrush shorter than general toothbrush, by making outside pieces group for taper hair, carrying out 3000 Root/cm²High density above plants hair, and the foaming of toothpaste while staple length shortens, can be made to be bubbled to be fine and smooth.

Further, by making to be made up of taper hair, positioned at head width both sides each outside pieces group width Spend for 20~30% relative to head width, can turn into ensures the necessary width as outside pieces group, contact sense is good Toothbrush, it is possible to provide the width of outside pieces group will not be made excessive, makes the motion smoothing of taper hair, and the motion easness of hair is excellent Toothbrush.

Claims

1. a kind of toothbrush, the front end of neck, which is provided with head, the multiple plant pores formed on the plant hair side on the head, to be implanted into There is pieces, wherein,

The plant hair side is provided with：The central hair that multiple central pieces of spread configuration are constituted on the length direction on the head Beam bundle, and width both sides positioned at the head and positioned at the outside hair of the width both sides of the central pieces group The outside pieces group that beam is constituted,

The outside pieces for constituting the outside pieces group is made up of taper hair, and plant gross density is 3000/cm²More than, the head The width of each outside pieces group of width both sides relative to the width on the head be more than 20%, less than 30%,

The height of the bristle for constituting the central pieces and the taper hair for constituting the outside pieces be 8.5mm with Under,

2. toothbrush according to claim 1, the total plant hair root number and the outside pieces of the bristle of the central pieces group The ratio between total plant hair root number of taper hair of group is more than 0.05, less than 0.25.

3. the toothbrush recorded according to claim 1 or 2, height of the height than outside pieces group of the central pieces group It is low.

4. the toothbrush recorded according to claim 1 or 2, the section of the bristle is irregular shape section.

5. the toothbrush recorded according to claim 1 or 2, what the hair end of the central pieces group was trimmed to is shaped as waveform.

6. the toothbrush recorded according to claim 1 or 2, in 1 plant pore, the outside of the outside pieces is shorter than inner side, its Staple length difference is 0.5~1.5mm.

7. a kind of electric toothbrush, toothbrush of the front provided with the record of any one of claim 1~6 of its shank.