CN108697230A - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- CN108697230A CN108697230A CN201780016110.9A CN201780016110A CN108697230A CN 108697230 A CN108697230 A CN 108697230A CN 201780016110 A CN201780016110 A CN 201780016110A CN 108697230 A CN108697230 A CN 108697230A
- Authority
- CN
- China
- Prior art keywords
- neck
- head
- toothbrush
- handle portion
- hair
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
- A46B5/021—Grips or handles specially adapted to conform to the hand
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Abstract
Offer can ensure that toothbrush operational in handle portion operability and oral cavity.Toothbrush (1), which has, plants hair portion (11), head (12), neck (13) and handle portion (14), the thickness t on head (12) is 2.0mm or more, 4.0mm following, the minimum widith W1 and minimum thickness D1 of neck (13) are 3.0mm or more, 4.5mm following, it is 5.0 degree or more that the straight line N of the thickness direction central point on the head (12) of the thickness direction central point of the handle portion (14) of the gripping center position of connection toothbrush (1) and the center position of plant hair portion (11), which is formed by angle, θ with the plane P for constituting plant hair side (12a), 10.0 below degree, the distance between the thickness direction central point and plane P of handle portion (14) h is 6.0mm or more, 12.0mm or less.
Description
Technical field
The present invention relates to toothbrushes.
This application claims the Japanese patent applications the 2016-045368th based on March 9th, 2016 in Japanese publication, and
On October 28th, 2016 in the priority of the Japanese patent application 2016-212030 of Japanese publication, and is hereby incorporated its content.
Background technology
According to Patent Documents 1 to 3, based on operability in oral cavity it is equal from the point of view of, it is thus proposed that a kind of reduction head
Thickness toothbrush scheme.If the thickness on head reduces, the problems such as having strength reduction.Therefore, polyacetal resin can be used
(POM) the high resin of equal strength.Particularly, by squeezing into flat wire made of metal (flat plate) by resin system
At head come fixed bristles flat wire type plant hair in the case of, it sometimes appear that planting hair intensity, the folding strength on head not
Abundant situation.
[Xian Youjishuwenxian ]
[Zhuan Liwenxian ]
[Patent document 1]Japanese Patent Laid-Open 7-143914 bulletins
[Patent document 2]Japanese Patent Laid-Open 2011-4852 bulletins
[Patent document 3]Japanese Patent Laid-Open 2011-200296 bulletins
Invention content
[Fa to Yao the Ke Ti ] of Xie Decision bright;
It is found that after the present inventor's research:In above-mentioned toothbrush, if the neck of connection head and handle portion is thicker, by head
Operational improvement effect is impaired in the oral cavity that portion's thinning belt is come.Particularly, if increase neck width, operational further
On the basis of impaired, the thinness of appearance head portion is not also notable, and the impression of commodity can be also damaged.On the other hand, attenuate in neck
In the case of, flexure excessively will produce operational problem sometimes instead.In addition, being also required to further improve in intensity.Particularly,
In the case of the resins for universal use that can be generally used in using toothbrushes such as polypropylene (PP), the project is more notable.
For one mode of the present invention for solving the above subject, one of its goals is to provide that good operability can be obtained
The thin toothbrush in head.
[The Shou Duan ] of Yong Yu Xie Decision projects;
In order to achieve the above objectives, the toothbrush of one embodiment of the present invention is:A kind of toothbrush has including multi beam pieces
Hair portion is planted, the head for being provided with the plant hair portion on hair side is planted, extends to the neck of the head setting, and extends to the neck
Portion setting handle portion, which is characterized in that the thickness on the head be 2.0mm or more, 4.0mm hereinafter, the neck minimum
Width and minimum thickness are 3.0mm or more, 4.5mm hereinafter, connecting the handle of the gripping center position of the toothbrush
The straight line of the thickness direction central point on the head of the thickness direction central point in portion and the center position for planting hair portion with
It constitutes the plane for planting hair side and is formed by that angle is 5.0 degree or more, 10.0 degree hereinafter, in the thickness direction of the handle portion
The distance between heart point and the plane are 6.0mm or more, 12.0mm or less.
The toothbrush of one embodiment of the present invention, wherein the modulus of elasticity in static bending of the constituent material of the neck can be
1000MPa or more, 2200MPa or less.
The toothbrush of one embodiment of the present invention, wherein the constituent material of the neck can be acrylic resin.
[Fa Mingxiaoguo ]
According to one method of the present invention, it can be achieved that toothbrush that good operability can be obtained, that head is thin.
Description of the drawings
[Tu1 ]The plan view of the toothbrush of an embodiment of the invention.
[Tu2 ]The lateral plan of toothbrush.
[Fig. 3 A]One embodiment of the present invention relates to toothbrush plan view.
[Fig. 3 B]One embodiment of the present invention relates to toothbrush lateral plan.
[Fig. 4 A]Illustrate the figure of the assay method of the deflection on head.
[Fig. 4 B]Illustrate the figure of the assay method of the deflection on head.
[Fu Haoshuoming ]
1... toothbrush, 11... plant hairs portion, the heads 12..., 12a... plant hair sides, 13... necks, 14... handle portions, 17... maos
Beam.
Specific implementation mode
Hereinafter, about an embodiment of the invention, illustrated in conjunction with Fig. 1 and Fig. 2.
In addition, following implementation, is to indicate one embodiment of the present invention, the present invention is not limited, is thought in the technology of the present invention
Think arbitrarily change in range.In addition, in the following drawings, in order to be easy observation each integral part, it sometimes appear that according to composition
Element, shown in size engineer's scale and the different situation such as quantity.
Fig. 1 is the plan view of the toothbrush of present embodiment.
Fig. 2 is the front view of toothbrush.
As shown in Figure 1 and Figure 2, the toothbrush 1 of present embodiment has:Hair portion 11 is planted, the head 12 for planting hair portion 11 is provided with, from
The extended neck 13 of the base end side on head 12, the handle portion 14 being extended from the base end side of neck 13.That is, head 12,
Neck 13 and handle portion 14 are formed as one.Hereinafter, head 12, neck 13 and 14 integrally formed component of handle portion are referred to as handle
Hand body 15.In addition, in Fig. 1, the diagram for planting hair portion 11 is omitted.
Herein, the upper surface equipped with the head 12 for planting hair portion 11 is known as planting hair side 12a.As shown in Figure 1 and Figure 2, will
Constitute and plant the plane P (imaginary plane) of hair side 12a and be used as X/Y plane, the direction that handlebody 15 is integrally extended as X-direction,
Using the direction to intersect vertically with X-axis as Y direction.Using the normal direction of plane P as Z-direction.It, will be each in illustrating below
The size of the Y direction of component is known as the width of the component, and the size of the Z-direction of each component is known as to the thickness of the component,
The size of the X-direction of each component is known as to the length of the component.
Handlebody 15 is integrally molded so as long ruler-like as a whole, for example, can be by regarding resin as being injected into for material
Type makes.As the constituent material of handlebody 15, can enumerate polypropylene (PP), polyethylene terephthalate (PET), poly- pair
Benzene dicarboxylic acid butanediol ester (PBT), polycyclohexylene's diformazan alcohol ester (PCT), polyacetals (POM), poly- naphthalenedicarboxylic acid
Glycol ester (PEN), acrylonitrile butadiene styrene resin (ABS), cellulose propionate (CP), gathers polystyrene (PS)
Aromatic ester, makrolon, acrylonitrile styrene copolymerized resin (AS) etc..In these resin materials, based on intensity, high, head is easy
, it is preferable to use the materials such as POM, PBT, PEN from the point of view of thinning.
Particularly, compared with the resins such as polyacetals, in general versatility is high for polypropylene, and handling ease is at low cost, but another
On the one hand the property for having the modulus of elasticity in static bending low.For example, the modulus of elasticity in static bending substantially 2500MPa or so of polyacetals, with
This is opposite, polyacrylic modulus of elasticity in static bending substantially 1500~2000MPa or so.Therefore, if former, thin as head,
The material of the thin toothbrush of neck, polypropylene are materials not easy to use.But by using the toothbrush shape of aftermentioned present embodiment
Shape, it is possible to use the lower resin of the moduluses of elasticity in static bending such as polypropylene.
In present embodiment, the modulus of elasticity in static bending of the constituent material of handlebody 15 (especially neck 13) is preferred
1000MPa or more, 2200MPa or less.If the modulus of elasticity in static bending is less than 1000MPa, there are be unable to get when neck 13 attenuates
The worry of sufficient intensity.In addition, when if the modulus of elasticity in static bending is more than 2200MPa, hardness increases, and exists become fragile but then
Worry.
Above-mentioned resin can a kind of resin be used alone, also can resin of more than two kinds be used in combination.In addition, in handlebody 15, handle
Part or all of portion 14 can be covered by soft resin.It is covered by soft resin by handle portion 14 part or all,
When holding handle portion 14 thereby using person, the comfort of hand improves, and can prevent the finger held sliding.It, can as soft resin
It lifts for example, it is preferable to which shore hardness (Shore hardness) A is 90 resins below, more preferable shore hardness A is 10~40
Resin.As such soft resin, can lift for example, polyolefin elastomer, styrene series elastomer, polyester-based elastomer,
The elastomer resins such as polyurethane series thermoplastic elastomer (TPE), silicones etc..
The whole length of handlebody 15 can be fixed according to operational Deng Decision.The whole length of handlebody 15 is such as 100~
200mm or so.
Head 12 have in plan view 4 top by the flat shape of the approximate quadrangle of curve corner cut.
The upper surface on head 12 plants on hair side 12a, is provided with multiple plant pore 12h.The pieces 17 that bristle is done up is implanted each plant
The plant hair portion 11 comprising multi beam pieces 17 is consequently formed in pore 12h.In multiple plant pore 12h, it is located at the front end side on head 12
Plant pore 12h to 12 front end of head distance d1, and positioned at head 12 most base end side plant pore 12h to 12 cardinal extremity of head
Distance d2 be set to it is equal.In other words, aftermentioned neck 13 and the boundary position K1 on head 12 are:From positioned at head 12 most
The plant pore 12h of base end side, with the distance equal with distance d1, to 13 lateral deviation of neck from position.
The size on head 12 is contemplated that in oral cavity that the characteristics Lai such as operability Decision are fixed.If the width on head 12 is excessive, oral cavity
Interior operability reduces, if when too small, planting the quantity of the pieces 17 of hair becomes very few, it is easily damaged to clean effect.Therefore, head 12
Width is set as such as 5mm~16mm or so.
If the length on head 12 is long, operability is easily damaged in oral cavity, if when too short, the quantity for planting the pieces 17 of hair becomes
Must be very few, it is easily damaged to clean effect.Therefore, the length on head 12 is set to the range of such as 10mm~33mm.
The shape for planting pore 12h is not particularly limited, and can be the circles or triangle, quadrangle etc. such as positive round, ellipse
Polygon.The quantity for planting pore 12h is not particularly limited, and can be set in such as 10~60 ranges.Plant pore 12h's
Diameter can be fixed according to the Cu Xi Decision of pieces 17, can be set in the range of such as 1mm~3mm.The arrangement pattern for planting pore 12h does not have
It is particularly limited to, can be the arbitrary arrangement pattern such as so-called clathrate, staggered.
As the bristle for constituting pieces 17, diameter can be enumerated towards the gradually smaller bristle in hair front end (taper hair), in addition to
The bristle (straight type hair) that roughly same outer diameter except the globular part of hair front end.The material of bristle can be used for example, 6-12 nylon, 6-
The polyamide such as 10 nylon, PET, PBT, polypropylene terephthalate (PTT), PEN, polybutylene naphthalate (PBN)
The synthetic resin materials such as polyolefin, olefin-based elastomer, the styrene series elastomers such as equal polyester, PP.These resin materials, can 1
Kind is used alone, but also two or more is applied in combination.In addition, bristle can be with core and be set on the outside of core at least 1 layer
The multiple cored structure of above sheath portion.
The cross section profile of bristle is not particularly limited, and can lift for example, the circles such as circular, ellipse, triangle, four sides
The polygons such as shape, pentagon, hexagon, star, the cloverleaf pattern of three pieces leaf, four leaves bunge bedstraw herb shape etc..
The thickness of bristle is not particularly limited, and in the case of cross section profile is circular, such as may be set to 3mil~11mil
(1mil=1/1000inch=0.025mm).Pieces can be all made of the bristle of identical thickness, also can be by two or more difference
The bristle of thickness combines.Staple length is not particularly limited, such as may be set to 6mm~12mm.
As shown in Fig. 2, the sides plant hair side 12a in the front end side of handle portion 14, be formed with center configuration with plant hair
The sides hair side 12a are planted in protrusion in opposite face 12a side (side in Fig. 2 than handle portion 14 further below) in lateral plan
The curved surface 14a of arc profile.Similarly, in the side opposite with hair side 12a is planted of the front end side of handle portion 14, it is formed with center
Position is configured in the side opposite with hair side 12a is planted, the curved surface for planting the sides hair side 12a in the arc profile of protrusion in lateral plan
14b。
In addition, the sides plant hair side 12a of the rear end side in neck 13, are formed with center configuration and are planting the sides hair side 12a (figure
The side more above than handle portion 14 in 2), the curved surface 13a of hair side 12a sides in the arc profile of recess is planted in lateral plan.
Similarly, it in the side opposite with hair side 12a is planted of the rear end side of neck 13, is formed with center configuration and is planting hair side 12a
Curved surface 13b of the sides hair side 12a in the arc profile of recess is planted in side in lateral plan.
Curved surface 13a and curved surface 14a respectively advances with the length direction towards handle portion 14, the tangent line in lateral plan
Change with the angle of the crossing continuity for planting hair side 12a, but in the cross part of curved surface 13a and curved surface 14a, with the friendship between tangent line
It is 0 degree to pitch angle not or the angle [alpha] 1 of 180 degree is intersected.Therefore, in the cross part of curved surface 13a and curved surface 14a, it is formed with crest line K2.
About curved surface 13b and curved surface 14b, they are also respectively with the length direction advance towards handle portion 14, side
The angle of the crossing continuity variation of tangent line and plant hair side 12a in view, but in the cross part of curved surface 13b and curved surface 14b, with tangent line
The angle of the crossing each other is not the intersection of angle [alpha] 2 of 0 degree or 180 degree.Therefore, in the cross part of curved surface 13b and curved surface 14b, shape
At there is crest line K3.Therefore, neck 13 and handle portion 14, the side of the length direction by clipping crest line K2, K3 in side
Hair side 12a sides curved surface 14a, 14b in the arc profile of protrusion are planted in view, and clip crest line K2, K3 length direction it is another
The sides hair side 12a of being planted in lateral plan of side are connected in curved surface 13a, 13b of the arc profile of recess, as a result, in side
Be formed as approximate S-shaped in view.
The boundary of the rear end side of neck 13 is defined by crest line K2, K3.Therefore, the more rear end side of crest line K2, K3 is to set
It is equipped with the range of handle portion 14, the range for being provided with the range on head 12 and being provided between the range of handle portion 14 is provided with neck
Portion 13.
The end (the more rear end side of crest line K2) for planting the sides hair side 12a of the front end side of handle portion 14 is finger contact portion 19.
User holds handle portion 14, thus stably operable toothbrush 1 by contacting thumb on finger contact portion 19.
Neck 13 connects head 12 and 14 one of handle portion.About neck 13, as its an example, from head 12 and neck
The position that boundary position K1 (13 front end of neck) between 13 is close to the deviation of handle portion 14 slightly is most thin, there is smaller sectional area,
Keeping the sectional area, end side extends backward, in rear end side at the boundary K2 with handle portion 14, forms gradually expanding shape
Shape.In this way, it is gradually thicker towards 14 side of handle portion from 12 side of head by neck 13, to various holds or method for brushing teeth
When using toothbrush 1, the flexure of neck 13 can also be absorbed, and usability is excellent.Wherein, it is based on from the point of view of use feeling, neck
13 need flexible, appropriateness flexure.
In order to allow neck 13 and lip contact when by 12 insert port intracavitary of head, the preferred 25mm of length of neck 13~
70mm。
As shown in Figure 1, the gripping center G1 of toothbrush 1 is located on handle portion 14.Center G1 is held to be defined as
The rear end side of handle portion 14 is with crest line K2 at a distance of the position of 37mm.
Hold as toothbrush, it is known to contact thumb near finger contact portion, handle portion is integrally held with palm
" holding ", and thumb is contacted near finger contact portion, as " drot gfasplng " equally held that hold a pen.The present inventors is conscientious
It has studied:In the case where holding various toothbrushes with various holds, the position to exert a force when toothbrush is operated.As a result, recognizing:
With finger contact portion vertex (position of crest line K2) at the averagely position of 37mm contact portion finger, become operation at this
One of the center of point.Therefore, which is defined as gripping center.In addition, having the further insight that the position and much common simultaneously
The position of centre of gravity of toothbrush is probably consistent.
As shown in Fig. 2, by connect toothbrush 1 hold center G1 place handle portion 14 thickness direction central point G2 with
The imaginary straight line of the thickness direction central point S2 on the head 12 at the center S1 (referring to Fig.1) in hair portion 11 is planted as straight line
When N, straight line N is located at the more top (+Z direction) of plane P.In other words, handlebody 15 has following such curved shape:With tool
There is the handle portion 14 for holding center G1 to be located at the shape being more bent by planting the mode of 11 side of hair portion than the plant hair side 12a on head 12
Shape.
The present inventors has found, in the previous toothbrush that handlebody extends near linear shape, if head is thinning, and neck
When attenuating, head, neck can be bent, and planted hair portion and are easy to shift to the back side (being-Z-direction for Fig. 2) on head.Especially
It is, when being brushed teeth, if neck is bent, to plant hair portion and be displaced to than common position more by the back side on head (that is, separate
The direction of tooth or gum), the power applied to handle portion, which is difficult to fully be conveyed to, plants hair portion.As a result, the operation of handle portion
Property significantly reduce.
For this purpose, present inventor has performed contemplated after further investigation:As the toothbrush 1 of above-mentioned present embodiment, to than
The plane P for planting hair side 12a is constituted more by 14 side of handle portion for planting 11 lateral bend handlebody 15 of hair portion, further, is optimized straight
When the parameter of line N and plane P angulations θ etc., by the bending of handlebody 15, the flexure on head 12, neck 13 can be offset.
In this way, toothbrush 1 according to the present embodiment, in the case that on head, 12 thinning neck 13 attenuates, even if head 12, neck 13
Flexure can also be well maintained handle operation, it can be achieved that both operability and handle portion operability can be excellent in oral cavity
Toothbrush 1.
Hereinafter, the characteristic design parameters in illustrating the toothbrush 1 of present embodiment.
[The thickness t] on head;
The thickness t on head 12 is thinner, can more improve in oral cavity it is operational, if but it is excessively thin when, the intensity on head 12 is easy to become not
Fully.Therefore, the thickness t on head 12 is contemplated that the constituent material of handlebody 15, the modulus of elasticity in static bending Deng Lai Decision are fixed.Head 12
Thickness t can be set in the range of 2.0mm~4.0mm.More preferable 2.5mm~the 3.5mm of thickness t on head 12 or so.
[The minimum widith W1] of neck;
The minimum widith W1 of neck 13 is smaller, can more improve in oral cavity it is operational, if but it is too small when, the intensity of neck 13 is easy to become
It obtains insufficient.Therefore, the minimum widith W1 of neck 13 is contemplated that the constituent material of handlebody 15, the modulus of elasticity in static bending Deng Lai Decision
It is fixed.The minimum widith W1 of neck 13 may be set to 3.0mm~4.5mm.The more preferable 3.5mm of minimum widith W1 of neck 13~
4.3mm left and right.
[Minimum thickness of neck D1]
The minimum thickness D1 of neck 13 may be designated as:The thickness of the neck 13 of the position of the width minimum of neck 13 in X-direction.
That is, in the toothbrush 1 of present embodiment, the shape in the section to intersect vertically with the extending direction of neck 13 is approximate circle, in X-axis
The position consistency of the position and thickness minimum of the width minimum of neck 13 on direction.But it is vertical with the extending direction of neck 13
The shape in the section of intersection is not necessarily circle, such as can also be polygon.In addition, vertical with the extending direction of neck 13
The shape in the section of intersection, can also be different according to the position in X-direction, the position of the width minimum of neck 13 and
The position of thickness minimum not necessarily must be consistent.
The minimum thickness D1 of neck 13, it is smaller more to improve mouth transluminal operation in the same manner as the minimum widith W1 of neck 13
Property, if but it is too small when, the intensity of neck 13 is easy to become inadequate.Therefore, the minimum thickness D1 of neck 13 is contemplated that handlebody
The conditions Lai such as 15 constituent material, modulus of elasticity in static bending Decision are fixed.The minimum thickness D1 of neck 13 may be set to 3.0mm~4.5mm.
More preferable 3.5mm~4.3mm of minimum thickness D1 of neck 13 or so.In the case of present embodiment, the extension side with neck 13
It is approximate circle to the shape in the section to intersect vertically, so width and thickness is identical.That is, the minimum diameter of neck 13 is preferred
3.0mm~4.5mm, more preferable 3.5mm~4.3mm.
[Distance a] between head cardinal extremity~finger contact portion front end;
From the cardinal extremity (the boundary position K1 of neck 13 and head 12) on head 12 to front end (neck 13 and the handle of finger contact portion 19
The boundary K2 of hand 14) between distance a it is bigger, planting hair portion 11 more can reach depths in oral cavity, can more improve it is intraoral while while
The cleaning effect at angle angle, but in turn, the bending deformation of neck 13 must be bigger.On the other hand, distance a is smaller, can make neck 13
It bends smaller, but plants hair portion 11 and be more difficult to reach depths in oral cavity.Therefore, although distance a also depends on the composition of handlebody 15
The conditions such as material, the modulus of elasticity in static bending, but may be set to such as 25mm~70mm or so.
[Hold central point Jiao Duθ ]
Hereinafter, by the thickness direction central point G2 for holding the handle portion 14 at the G1 of center for connecting toothbrush 1 and planting hair portion 11
Center S1 at the straight line N and constituting of thickness direction central point S2 on head 12 plant the plane P of hair side 12a and be formed by
Angle, θ referred to as holds central point angle, θ.
If gripping central point angle, θ is excessive, the difference of the extending direction of handle portion 14 and the extending direction on head 12 becomes
Greatly, the operability of handle portion 14 reduces.In addition, when if gripping central point angle, θ is too small, the shape of handlebody 15 becomes straight line
Shape is unable to get the original effect of present embodiment.In view of these, hold central point angle, θ may be set to 5.0 degree with
Above, 10.0 degree or less.Hold preferably 6.0 degree or more, 8.0 degree or less of central point angle, θ.
[Gripping center point height h]
The thickness direction central point G2 for holding the handle portion 14 in the G1 of center of toothbrush 1 is planted into the flat of hair side 12a with composition
The distance between face P is defined as gripping center point height h.
Gripping center point height h, with hold central point angle, θ in the same manner as, if when excessive, the extending direction of handle portion 14 and
The extending direction difference on head 12 becomes larger, and the operability of handle portion 14 reduces.If in addition, hold center point height h it is too small when,
The shape of hand body 15 becomes linear, is unable to get the original effect of present embodiment.In view of these, it is high to hold central point
Degree h may be set to 6.0mm or more, 12.0mm or less.The more preferable 7.0mm or more of gripping center point height h, 11.0mm or less.
(the deflection A on head)
The deflection A on head, by the following method (α) measure.
Method (α):
Plant top of the hair side towards vertical direction for making head, by the position of the boundary P1 between the head and neck of toothbrush into
The height for the handlebody front end gone in the state of fixing is as altitude datum.Further, by the position of the boundary P1
In the state of being fixed, relative to the long axis direction length for planting hair portion in head, with plant the front end in hair portion at a distance of 10 ±
The hammer for suspending 200g at 3% position in midair, by shift amount (unit of the handlebody front end in the height from altitude datum after 10 seconds
Mm) as the deflection A on head.
In addition, " length for planting the long axis direction in hair portion " refers to, it is located at front end side when observing head in plan view
Plant the distance between the rear end of the front end of pore and the plant pore positioned at last end side.
Have from the toothbrush on the head of the shape to narrow in the direction of the width neck, boundary P1 is:In plan view
In head corner cut of the formation since neck two edge curve terminal, that is, form the bending direction of the curve of corner cut
Changed position.In addition, plan view refers to, the toothbrush from the plant hair side side on head.
It is specifically described in conjunction with the toothbrush 21 as shown in Fig. 3 A, Fig. 3 B, Fig. 4 A and Fig. 4 B.Toothbrush 21 has:Flat
It is the head 22 of approximate quadrangle in the view of face, extends to the neck 24 of the setting of head 22, extends to the handle of the setting of neck 24
Portion 26.On head 22, it is provided with and plants hair portion (not shown).Hereinafter, head 22, neck 24 and handle portion 26 are collectively referred to as handlebody
210。
Head 22, in plan view, with towards neck 24, expanding in the direction of the width, then with phase since front end 29
Deng width extend, next narrow in the direction of the width, until the boundary P1 of itself and neck 24.Neck 24, from boundary, P1 is opened
Begin, is extended towards handle portion 26 with roughly the same diameter, it is then expanding, until the boundary P2 of itself and handle portion 26.
Boundary P1 in toothbrush 21 is:Two of the corner cut since neck 24 are formed in the plan view shape on head 22
The terminal of the curve of edge, that is, form the changed position of bending direction of the curve of corner cut.In Fig. 3 A, head and neck
Boundary P1 is:The curve R1 to narrow since the width of two edge of formation corner cut on the head 22 in plan view, change as shape
At the position of the straight line of two edge of same size.In addition, in plan view neck towards handle portion direction and tooth that width broadens
In the case of brush, position consistencies of the boundary P1 in plan view with the width minimum in head and neck.
But the position for having such as head and neck the boundary P1 as the toothbrush that same widths are formed sometimes is difficult to
Determining situation.At this point, will relative to length L1, with the front end 29 of handlebody 210 at a distance of 17.5% position (for example, length
When L1 is 180mm, with the front end 29 of handlebody 210 at a distance of the position of 31.5mm) it is used as boundary P1.
For example, in plan view the part since head of neck it is of same size in the case of, in the neck
Since the part head, measure width while gradually changing position towards head, by part of same size and
Width starts the position at the variation of the part to become larger as boundary P1.In addition, in plan view neck since head
Part width with narrowing close to head in the case of, in neck since the part head, on one side towards head
Portion gradually changes position and measures width on one side, using the position of width minimum as boundary P1.
The deflection A on head 22, measures as follows.
As shown in Figure 4 A, by toothbrush 21, by make plant hair side 220 towards the top of vertical direction in a manner of, in neck most thin portion
It is fixed with jig 2100 at the position of position (boundary P1).At this point, high on the basis of the height of the front end of handlebody 210 29
Spend H0。
Then, as shown in Figure 4 B, by the hammer of 200g 2102, it is suspended in the position of S, 210 front end 29 of handlebody after measuring 10 seconds
Height, using its height as H1.The S is:The length L4 (Fig. 3 A) relative to the long axis direction for planting hair portion in head 22,
With plant hair portion front end at a distance of 10 ± 3% position.For example, in the case where it is 19mm to plant hair portion, S is and plants hair portion front end apart
The position of 2.0mm.
Next, by H1And H0Absolute value of the difference found out as a (unit is mm).The a can use the survey such as altimeter
It is fixed.It measures and is carried out at 25 ± 3 DEG C of room temperature.
5 said determinations are carried out, using the average value of above-mentioned shift amount a as the deflection A on head 22.
Deflection A preferably 0.4~3.0, more preferable 0.4~2.5, further preferred 0.4~2.0.In addition, deflection A is excellent
Select 0.5~3.0, more preferable 0.5~2.5, further preferred 0.5~2.0.If deflection A is in the range, head 22 is certainly
Body is moderately bent, and shows the softness for planting hair portion in implantation head 22, becomes better to contact sense, that is, use feeling of gum.
If in addition, when deflection A is more than the lower limiting value, use feeling becomes good.If deflection A is below the upper limit value,
It is easy to ensure that sufficient intensity in head 22.Further, toothbrush 21 will not become excessively weak, be easy to get good oral cavity
Interior operability, sweeping forces.
In addition, deflection A, it can be by adjusting the modulus of elasticity in static bending of the material (i.e. the material of handlebody) on head or the thickness on head
Degree, width etc. adjust.
(the deflection B of neck)
The deflection B of neck, by the following method (β) measure.
Method (β):
Plant top of the hair side towards vertical direction for making head, by the position on the boundary between the neck and handle portion of toothbrush into
The height for the handlebody front end gone in the state of fixing is as altitude datum.The phase in head again in the state of the fixation
For planting the long axis direction length in hair portion, the hammer of 200g is suspended in midair at 50 ± 3% position with the front end for planting hair portion, by 10 seconds
Shift amount (unit be mm) deflection B as neck of the handlebody front end afterwards in the height from the altitude datum.
Boundary P2 between neck and handle portion is:The expanding terminal of neck, that is, in plan view, form broadening
Part two edge straight line terminal or formed broadening part two edge curve the changed position of bending direction.
In Fig. 3 A, it is:The straight line of two edge of the part to broaden from formation width in neck in the plan view of neck and handle portion
Or curve R2 starts, and changes the position of the curve become narrow gradually for width.
But the position for having such as neck and handle portion the boundary P2 as the toothbrush that same widths are formed sometimes is difficult
With determining situation.At this point, will relative to length L1, with the front end 29 of handlebody 210 at a distance of 42.2% position (for example, long
Spend in the case that L1 is 180mm, with the front end 29 of handlebody 210 at a distance of the position of 76.0mm) it is used as boundary P2.
In addition to the deflection of position S and head 22 that the 2100 fixed position of jig of toothbrush 21 and suspention are hammered into shape to 2102
Other than the assay method difference of A, the deflection A on remaining and head is carried out similarly, and measures the flexure of the neck 24 in toothbrush 21
Measure B.
In the measurement of the deflection B of neck 24, the position that toothbrush 21 is fixed with jig 2100 is boundary P2.In addition, S is:Relatively
In the long axis direction length for planting hair portion, and position of the hair portion front end at a distance of 50 ± 3% is planted.For example, planting the case where hair portion is 19mm
Under, S is with front end at a distance of the position of 9.5mm.
Then, identically as the assay method of deflection A on head, the altitude datum H before suspention hammer 2102 is found out0It is hammered into shape with suspention
The 2102 height H after 10 seconds1Absolute value of the difference (unit mm).It measures and is carried out at 25 ± 3 DEG C of room temperature.Carrying out 5 times should
It measures, using its average value as the deflection B of neck 24.
Deflection B preferably 2.1~5.0, more preferable 2.3~4.5, further preferred 2.5~4.0.If deflection B is described
When range, neck is moderately bent, and shows appropriate resiliency, and plant hair portion becomes more preferable to the contact sense of gum.In addition, flexure
If measure B more than the lower limiting value, bristle can reach the oral cavities such as molar depths inner edge corner angle, can further improve oral cavity
Interior sweeping forces.Further, bristle enters the entering raising of oral pocket, further increases the sweeping forces of oral pocket.Flexure
If measure B below the upper limit value, it is easy to inhibit the strength reduction of neck.Further, toothbrush 21 will not become excessively soft
It is weak, it is easy to get good use feeling.
In addition, deflection B can by adjusting the material (i.e. the material of handlebody) of neck the modulus of elasticity in static bending or neck most
Minor diameter, boundary P2 cross sectional shape etc. adjust.
The product (A × B) of the deflection A on the head and deflection B of neck is 0.8~10, more preferable 1~10, further excellent
Select 1~6, further preferred 1~3.5.In addition, (A × B) preferably 2~10.Head can be obtained if when in the range in (A × B)
The appropriateness flexure that portion 22 and neck 24 are coordinated.Plant hair portion is set to be slided relative to object position (tooth, gum etc.) is cleaned as a result,
When, the softness and resiliency of planting hair portion are shown, the contact sense for planting hair portion becomes good.In addition, the lower limiting value of (A × B) be 0.8 with
On, preferably 1 or more.Furthermore it is preferred that 2 or more.By allowing (A × B) more than the lower limiting value, appropriate flexure can be obtained, from
And it is good to the contact sense of gum, the higher massage effect to gum can be obtained, use feeling improves.(A × B) upper limit value is 10
Hereinafter, it is preferred that 6 hereinafter, more preferable 3.5 or less.By allowing (A × B) in the upper limit value hereinafter, to head 22 and neck 24
Be formed by region will not excessive deflection, can inhibit operability reduce and sweeping forces reduce.Furthermore, it is possible to inhibit by the transition
The massage effect of gum is reduced caused by flexure and user uses weakness when toothbrush 21 to feel.Further, toothbrush 21
Intensity improves, and durability improves.
Deflection A and deflection B, preferably A < B.If when A < B, the operability of toothbrush 21 further increases.
In addition, the difference (B-A) of deflection A and deflection B, preferably 1 or more, preferably 1.5 or more, further preferred 2 or more.(B-
A) if when more than the lower limiting value, relative to head 22, the deflection of neck 24 remains larger, resiliency height raising, right
The contact sense of gum is good, and user is easy actually to experience the massage effect to gum.
In addition, (B-A) preferably 4 is hereinafter, more preferable 3 or less.(B-A) if when below the upper limit value, relative to head 22, neck
The deflection in portion 24 will not become too much, and operability is easy to improve in oral cavity.Further, it is easy that user is inhibited to use toothbrush
Weak sense when 21.
(B-A) preferably 1~4, more preferable 1~3.
In addition, the ratio between deflection B and deflection A (B/A) preferably 1.5~5.0, more preferable 1.8~4.8.
When using toothbrush 21, handle portion 26 is held.Mode to holding handle portion 26 is not particularly limited, and can be the palm
Drot gfasplng can also be a drot gfasplng.It is cleaned generally, due to while applying pressure to object position, so in any gripping
In mode, thumb etc. is touched near the boundary P2 of neck rear end, holds handle portion 26.
Next, by 22 insert port intracavitary of head, one side squeeze grip portion 26 allows plant hair portion sliding on cleaning object position on one side
It is dynamic.The power for being applied to handle portion 26 is transmitted by neck 24 to head 22, further, is transmitted from head 22 to hair portion is planted, by
This, plants hair portion and is cleaned while to object position application pressure is cleaned.At this point, the deflection A on the head and deflection B of neck
Product (A × B) if 0.8~10 when, the appropriateness flexure that head and neck are coordinated can be obtained.As a result, being easy to make implantation tooth
Bristle in the head 22 of brush 21 reaches the intraoral side corner angles such as the depths of molar, and sweeping forces improve in oral cavity.Further
Ground is easy that bristle is made to enter oral pocket, and the sweeping forces of oral pocket improve.Further, since appropriate flexure can be obtained, so plant hair
The softness and resiliency in portion improve, and plant hair portion and become good to the contact sense of gum, can obtain the good massage effect to gum,
Use feeling improves.
[Shi Shili ]
Hereinafter, enumerating embodiment, the present invention will be described in detail, but the present invention is not limited to following embodiments, can not depart from its main idea
In the range of suitably change implement.
According to specification shown in table 1, the toothbrush of Examples 1 to 6 and comparative example 1~2 is made by injection moulding.Upper
It states in toothbrush, the width of handle portion, length, thickness and shape are all identical.The various resins that table 1 is recorded are injection moulded, are obtained
To Fig. 1 and head shown in Fig. 2, the integrated molding object of neck and handle portion.Towards neck from the front end on head, plant
Pore is arranged as the row of 3 holes × 1, the row of 4 holes × 6, the row of 3 holes × 1.The width x length on head is remembered in table 1.It will be by by PBT systems
At the pieces of tapered bristles (7.5mil) that is formed of long filament hair planted by flat wire type be implanted into head, make toothbrush.
As the assessment item of each sample, operability and 2 projects of handle operation in oral cavity of illustrating.For being grasped in oral cavity
The property made, " very excellent " are " ◎ ", and " excellent " is "○", and " slightly worse " is " △ ", and " excessively poor " is "×".Similarly, for handle
Hand operability, " very excellent " is " ◎ ", and " excellent " is "○", and " slightly worse " is " △ ", and " excessively poor " is "×".
[Table 1]
As shown in table 1, the gripping central point angle, θ of the toothbrush of comparative example 1, gripping center point height h have exceeded this hair
Outside bright numberical range.That is, the toothbrush of comparative example 1, handlebody, which has, is relatively close to linear shape.It is thus identified that
It arrives:Operability and handle operation are poor in the oral cavity of the toothbrush of comparative example 1.Further, the head of the toothbrush of comparative example 2 is thick
Spend t, the minimum widith W1 and minimum thickness of neck D1 of neck have exceeded outside the numberical range of the present invention.It is thus identified that
It arrives:Operability is poor in the oral cavity of the toothbrush of comparative example 2.
In contrast, minimum widith W1, the minimum thickness of neck of the head thickness t of the toothbrush of Examples 1 to 6, neck
D1, gripping central point angle, θ and gripping center point height h wholes parameter are all fallen in the numberical range of the present invention.As a result,
It confirms:In toothbrush, even if all excellent if both operability, handle operation in neck flexure oral cavity.
In the case of generally planting hair using flat wire type, it is applied with to head by squeezing into pressure caused by flat wire.
In the case that head is relatively thin, the intensity of deformation when relative to force is relatively low, on the other hand, if neck is relatively thick, intensity is higher,
Pressure when brushing teeth concentrates on head, and the flexure on head becomes larger, it sometimes appear that the case where usability reduces.At this point, such as this reality
The toothbrush 1 for applying mode is such, by making neck attenuate, maintains a degree of flexibility, so as to so that pressure when brushing teeth
Integrally disperse from head to neck, usability improves.Therefore, it in the case where flat wire type plants hair, can particularly marked degree obtain
Obtain effect of the invention.
Claims (3)
1. a kind of toothbrush, has:
Plant hair portion including multi beam pieces,
The head that the plant hair portion is provided on hair side is planted,
The neck of the head setting is extended to,
The handle portion of the neck setting is extended to,
It is characterized in that,
The thickness on the head be 2.0mm or more, 4.0mm hereinafter,
The minimum widith and minimum thickness of the neck be 3.0mm or more, 4.5mm hereinafter,
In the thickness direction central point and the plant hair portion that connect the handle portion of the gripping center position of the toothbrush
The straight line of the thickness direction central point on the head at heart position is formed by angle with the plane for constituting the plant hair side
5.0 degree or more, 10.0 degree hereinafter,
The distance between the thickness direction central point of the handle portion and the plane are 6.0mm or more, 12.0mm or less.
2. toothbrush according to claim 1, wherein the modulus of elasticity in static bending of the constituent material of the neck is 1000MPa
Above, 2200MPa or less.
3. toothbrush according to claim 1 or 2, wherein the constituent material of the neck is acrylic resin.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010236571.0A CN111265000B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN202010235986.6A CN111387693B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-045368 | 2016-03-09 | ||
| JP2016045368 | 2016-03-09 | ||
| JP2016212030 | 2016-10-28 | ||
| JP2016-212030 | 2016-10-28 | ||
| PCT/JP2017/009479 WO2017155039A1 (en) | 2016-03-09 | 2017-03-09 | Toothbrush |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010236571.0A Division CN111265000B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN202010235986.6A Division CN111387693B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108697230A true CN108697230A (en) | 2018-10-23 |
| CN108697230B CN108697230B (en) | 2020-04-24 |
Family
ID=59789574
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010236571.0A Active CN111265000B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN202010235986.6A Active CN111387693B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN201780016110.9A Active CN108697230B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010236571.0A Active CN111265000B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN202010235986.6A Active CN111387693B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
Country Status (6)
| Country | Link |
|---|---|
| KR (3) | KR102384895B1 (en) |
| CN (3) | CN111265000B (en) |
| MY (1) | MY194154A (en) |
| SG (4) | SG11201807604QA (en) |
| TW (1) | TWI766856B (en) |
| WO (1) | WO2017155039A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114025642A (en) * | 2019-06-28 | 2022-02-08 | 狮王株式会社 | Tooth brush |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019107489A1 (en) * | 2017-11-30 | 2019-06-06 | ライオン株式会社 | Replacement brush for electric toothbrush, and electric toothbrush |
| US10925384B2 (en) | 2018-04-16 | 2021-02-23 | Colgate-Palmolive Company | Oral care implement |
| JP7190872B2 (en) | 2018-11-08 | 2022-12-16 | ライオン株式会社 | toothbrush |
| KR20220120557A (en) * | 2019-12-23 | 2022-08-30 | 라이온 가부시키가이샤 | toothbrush |
| KR20220052641A (en) | 2020-10-21 | 2022-04-28 | 김민혁 | The toothbrush of replacement brush heads |
| JP2022100940A (en) * | 2020-12-24 | 2022-07-06 | ライオン株式会社 | toothbrush |
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Also Published As
| Publication number | Publication date |
|---|---|
| MY194154A (en) | 2022-11-16 |
| CN111265000A (en) | 2020-06-12 |
| CN111387693A (en) | 2020-07-10 |
| SG10202008662PA (en) | 2020-10-29 |
| CN108697230B (en) | 2020-04-24 |
| KR102424854B1 (en) | 2022-07-25 |
| SG10202008658SA (en) | 2020-10-29 |
| KR20200106227A (en) | 2020-09-11 |
| KR20200106228A (en) | 2020-09-11 |
| SG11201807604QA (en) | 2018-10-30 |
| TWI766856B (en) | 2022-06-11 |
| SG10202008657QA (en) | 2020-10-29 |
| TW202233094A (en) | 2022-09-01 |
| KR20180120143A (en) | 2018-11-05 |
| CN111387693B (en) | 2022-01-14 |
| TW201731416A (en) | 2017-09-16 |
| CN111265000B (en) | 2021-10-29 |
| KR102384894B1 (en) | 2022-04-11 |
| WO2017155039A1 (en) | 2017-09-14 |
| KR102384895B1 (en) | 2022-04-11 |
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