CN109890247A - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- CN109890247A CN109890247A CN201780066471.4A CN201780066471A CN109890247A CN 109890247 A CN109890247 A CN 109890247A CN 201780066471 A CN201780066471 A CN 201780066471A CN 109890247 A CN109890247 A CN 109890247A
- Authority
- CN
- China
- Prior art keywords
- neck
- head
- toothbrush
- thickness
- 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
- A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
- A46B5/0025—Brushes with elastically deformable heads that change shape during use
- A46B5/0029—Head made of soft plastics, rubber or rubber inserts in plastics matrix
-
- 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
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
- A46B5/026—Grips or handles having a nonslip section
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/06—Brush bodies; Handles integral with brushware in the form of tapes, chains, flexible shafts, springs, mats or the like
-
- 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
-
- 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
Toothbrush operational in handle portion operability and oral cavity can be ensured by providing one kind.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 hereinafter, the minimum widith W1 and minimum thickness D1 of neck (13) are 3.0mm or more, 4.5mm or less.In side plant hair side (12a) of the rear end side of neck, it is formed with center configuration and is planting hair side side and planting hair side side in the visual angle of side in the curved surface (13a) of the arc profile of recess.It is 5.0 degree or more, 10.0 degree or less that the straight line N for connecting the central point on head (12) thickness direction of the center position of the central point on handle portion (14) thickness direction of the gripping center position of toothbrush (1) and plant hair portion (11) and the plane P for constituting plant hair side (12a), which is formed by angle, θ,.
Description
Technical field
The present invention relates to toothbrushes.
This application claims based on October 28th, 2016 in Japan file an application Japanese patent application the 2016-212030th
Priority, and its content is quoted herein.
Background technique
It is given in Patent Documents 1 to 3 and a kind of angularly consider based on operability in oral cavity and keep head thickness thinning
The scheme of toothbrush.When keeping head thickness thinning, it may appear that the problems such as strength reduction.Therefore, using polyacetal resin (POM) etc.
The high resin of intensity.Especially, by the way that flat wire made of metal (flat plate) is squeezed into head made of resin
In the case where flat wire type plant hair of the portion to keep bristle, it sometimes appear that it is insufficient to plant Mao Qiangdu, the folding strength on head
Situation.
Existing technical literature
Patent document
Patent document 1:JP Japanese Laid-Open Patent Publication 7-143914 bulletin
Patent document 2:JP special open 2011-4852 bulletin
Patent document 3:JP special open 2011-200296 bulletin
Summary of the invention
Problem to be solved by the invention
It finds after the present inventor's research: in above-mentioned toothbrush, when the neck of connection head and handle portion is thicker, being become by head
Operational improvement effect is impaired in thin bring oral cavity.Especially, when neck being broadened, not only further damage is operational,
And the thinness of appearance head portion is not also significant, and the impression of commodity is also damaged.However, when making neck attenuate, it sometimes appear that
Excessive deflection in operability instead the case where going wrong.In addition, being also required to further improve in intensity.Especially, make
With polypropylene (PP) etc. in the case where resins for universal use usually used on toothbrush, problem is more significant.
One embodiment of the present invention is to complete to solve the above-mentioned problems, and be to provide one kind can for the first purpose
The thin toothbrush in head to obtain excellent operability.
The means solved the problems, such as
In order to achieve the above objectives, the toothbrush of one embodiment of the present invention is characterized in that as a kind of toothbrush, to have
The head that the plant hair portion is provided on hair side, the neck being extended from the head are planted by the plant hair portion of multi beam pieces composition
With from the neck be extended handle portion toothbrush, which is characterized in that the head with a thickness of 2.0mm or more, 4.0mm
Hereinafter, the minimum widith and minimum thickness of the neck be 3.0mm or more, 4.5mm hereinafter, the neck rear end side
The plant hair side side is formed with center configuration plant hair side side described in the plant hair side side and side visual angle in recess
The curved surface of arc profile connects the central point on the handle portion thickness direction of the gripping center position of the toothbrush and institute
It states the straight line of the central point on the head thickness direction for planting the center position in hair portion and constitutes the plane for planting hair side
Being formed by angle is 5.0 degree or more, 10.0 degree or less.
In the toothbrush of one embodiment of the present invention, the bending elastic modulus of the constituent material of the neck can be 1000MPa
Above, 2200MPa or less.
In the toothbrush of one embodiment of the present invention, the constituent material of the neck can be acrylic resin.
Invention effect
According to one method of the present invention, it may be implemented can to obtain the thin toothbrush in the head of excellent operability.
Detailed description of the invention
[Fig. 1] is the plan view of the toothbrush of one embodiment of the present invention.
[Fig. 2] is the lateral plan of toothbrush.
[symbol description]
1 ... toothbrush；11 ... plant hair portion；12 ... heads；12a ... plants hair side；13 ... necks；14 ... handle portions；17 ... pieces.
Specific embodiment
Hereinafter, being illustrated in conjunction with Fig. 1 and Fig. 2 to one embodiment of the present invention.
In addition, following implementation shows one embodiment of the present invention, and the present invention is not limited, thought in technology of the invention
Think arbitrarily change in range.In addition, in the following drawings, for ease of observing each component, it sometimes appear that according to composition
The case where element keeps scale bar and quantity of size etc. different and shows.
Fig. 1 is the plan view of the toothbrush of present embodiment.
Fig. 2 is the lateral plan of toothbrush.
As depicted in figs. 1 and 2, the toothbrush 1 of present embodiment has: planting hair portion 11, is provided with the head 12 for planting hair portion 11, from the beginning
The extended neck 13 of the base end side in portion 12, the handle portion 14 being extended from the base end side of neck 13.That is, head 12 and neck
Portion 13 and handle portion 14 are integrally formed.Hereinafter, head 12, neck 13 and the integrally formed component of handle portion 14 are referred to as handlebody
15.In addition, omitting the diagram for planting hair portion 11 in Fig. 1.
Herein, the upper surface for planting the head 12 in hair portion 11 will be provided with to be known as planting hair side 12a.As depicted in figs. 1 and 2, will
The plane P (imaginary plane) for planting hair side 12a is constituted as X/Y plane, using the direction of handlebody 15 integrally extended as X-axis side
To using the direction to intersect vertically with X-axis as Y direction.Using the normal direction of plane P as Z-direction.Below in explanation,
Size in the Y direction of each component is known as to the width of the component, the size in the Z-direction of each component is known as the component
Thickness, the size in the X-direction of each component is known as to the length of the component.
The entirety of handlebody 15 is integrally formed as long ruler-like, for example, can be by using resin as the injection moulding of material
To make.As the constituent material of handlebody 15, polypropylene (PP) can be enumerated, polyethylene terephthalate (PET), gathered to benzene
Dioctyl phthalate butanediol ester (PBT), cyclohexanedimethanol support dimethylene ester (PCT), polyacetals (POM), poly- naphthalenedicarboxylic acid
Glycol ester (PEN), acrylonitrile butadiene styrene resin (ABS), cellulose propionate (CP), gathers polystyrene (PS)
Aromatic ester, polycarbonate, acrylonitrile styrene copolymer resins (AS) etc..In these resin materials, from intensity height, it is easy to make head
, it is preferable to use the materials such as POM, PBT, PEN from the point of view of thinning.
In particular, in general versatility is high for polypropylene, is easily worked, at low cost but another compared with the resins such as polyacetals
On the one hand the property for having bending elastic modulus low.For example, the bending elastic modulus substantially 2500MPa or so of polyacetals, and
Polyacrylic bending elastic modulus substantially 1500~2000MPa or so.Therefore, in previous, neck thin as head is thin
The material of toothbrush, polypropylene are materials not easy to use.It, can also but by using the toothbrush shape of aftermentioned present embodiment
To use the lower resin of the bending elastic modulus such as polypropylene.
In present embodiment, the bending elastic modulus of the constituent material of handlebody 15, particularly neck 13 is preferably
1000MPa or more, 2200MPa or less.When bending elastic modulus is less than 1000MPa, existing can not be obtained when neck 13 being made to attenuate
The worry of sufficient intensity.In addition, hardness increases when bending elastic modulus is more than 2200MPa, there is the load to become fragile but then
Sorrow.
Above-mentioned resin can be used alone a kind of resin, or the resin that can be used in combination of two or more.In addition, in handlebody 15,
Part or all of hand 14 can be covered by soft resin.It is covered by soft resin by handle portion 14 part or all
Lid, can be improved user grasp handle portion 14 when hand identical sense, can prevent hold finger slippage.As soft tree
Rouge can be lifted for example, it is preferable to which Shore A is 90 resins below, the resin that more preferable Shore A is 10~40.As such soft
Resin can be lifted for example, polyolefin elastomer, styrene series elastomer, polyester-based elastomer, polyurethane series thermoplastic elastomer (TPE)
Equal elastomer resins, silicon etc..
The entire length of handlebody 15 can be determined according to operability etc..The entire length of handlebody 15 is, for example, 100
~200mm or so.
Head 12 has the flat shape of 4 top approximation quadrangles obtained by curve corner cut in plan view
Shape.On the plant hair side 12a of the upper surface as head 12, it is provided with multiple plant pore 12h.The pieces 17 that bristle is done up
It is implanted into each plant pore 12h, the plant hair portion 11 of the composition of multi beam pieces 17 is consequently formed.In multiple plant pore 12h, it is located at head
Plant distance d1 of the pore 12h to 12 front end of head, and the plant pore 12h of the most base end side positioned at head 12 in 12 front end side
To 12 cardinal extremity of head distance d2 be set to it is equal.In other words, the boundary position K1 between aftermentioned neck 13 and head 12
It is following positions: from the plant pore 12h for the most base end side for being located at head 12, with the distance equal with distance d1, to 13 side of neck
The position of deviation.
The size on head 12 is contemplated that in oral cavity the characteristics such as operability to determine.When the width on head 12 is excessive, in oral cavity
Operability reduces, and when the width is too small, the quantity for planting the pieces 17 of hair becomes very few, and it is easily damaged to clean effect.Therefore, head 12
Width for example may be set to 5mm~16mm or so.
When the length on head 12 is too long, operability is easily damaged in oral cavity, when the length is too short, plants the quantity of the pieces 17 of hair
Become very few, it is easily damaged to clean effect.Therefore, the length on head 12 can for example be set in the range of 10mm~33mm.
The shape for planting pore 12h is not particularly limited, and can be the circles such as positive round, ellipse, or can be triangle, quadrangle
Equal polygons.The quantity for planting pore 12h is not particularly limited, such as can be set in 10~60 ranges.Plant pore 12h's
Diameter can be determined according to the thickness of pieces 17, such as can be set in the range of 1mm~3mm.The arrangement pattern for planting pore 12h does not have
It is particularly limited to, can arbitrarily arrange pattern for so-called clathrate, staggered etc..
As the bristle for constituting pieces 17, diameter can be enumerated towards bristle front end gradually smaller bristle (tapered brush
Hair), the bristle (straight bristle) that roughly same outer diameter other than the globular part of bristle front end.Example can be used in the material of bristle
Such as 6-12 nylon, 6-10 nylon polyamide, PET, PBT, polypropylene terephthalate (PTT), PEN, poly- naphthalenedicarboxylic acid
The synthetic resin materials such as polyolefin, olefin-based elastomer, the styrene series elastomers such as polyester, the PP such as butanediol ester (PBN).These
Resin material can be used alone a kind, but two or more be applied in combination.In addition, bristle can be multiple cored structure, the multiple core
At least 1 layer or more of the sheath portion that construction includes core and is arranged on the outside of core.
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, bunge bedstraw herb shape of four leaves etc..
The thickness of bristle is not particularly limited, and cross section profile is that such as may be set to 3mil~11mil in circular situation
(1mil=1/1000inch=0.025mm).Pieces can be made of the bristle of all identical thicknesses, or can be by two or more not
Bristle with thickness combines.Staple length is not particularly limited, such as may be set to 6mm~12mm.
As shown in Fig. 2, being formed with center (center of curvature) in the side plant hair side 12a of the front end side of handle portion 14 and matching
It sets and plants hair side 12a in the side (in Fig. 2, than handle portion 14 side further below) opposite with hair side 12a is planted and side visual angle
Side is in the curved surface 14a of the arc profile of protrusion.Similarly, the side opposite with hair side 12a is planted in the front end side of handle portion 14,
It is formed with center configuration and plants the side hair side 12a in the circular arc of protrusion in the side opposite with hair side 12a is planted and side visual angle
The curved surface 14b of profile.
In addition, the side plant hair side 12a of the rear end side in neck 13, is formed with center (center of curvature) configuration and is planting hair
The side hair side 12a is planted in the face side 12a (in Fig. 2, the side more above than handle portion 14) and side visual angle in the arc profile of recess
Curved surface 13a.More specifically, about neck 13, after continueing to from the front-end side region of the long axis direction intersected with head 12
End side region, the thickness direction of handle portion 14 plant the side hair side 12a face (curved surface or plane) formed from long axis direction and
The side hair side 12a is planted in the side view that the width direction that thickness direction intersects vertically is observed in the curved surface of the arc profile of recess
13a, and be bent.The center of curvature of curved surface 13a is configured at side more above than curved surface 13a in a thickness direction.Similarly,
In the side opposite with hair side 12a is planted of the rear end side of neck 13, it is formed with center (center of curvature) configuration and is planting hair side
The side hair side 12a is planted in the side 12a (upside) and side visual angle in the curved surface 13b of the arc profile of recess.
Curved surface 13a and curved surface 14a extends with the length direction of handle portion 14 respectively, tangent line and plant in the visual angle of side
The angle of the crossing continuity of hair side 12a changes, but in the cross part of curved surface 13a and curved surface 14a, with the angle of the crossing between tangent line
The angle [alpha] 1 for 0 degree or 180 degree is not 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 as the length direction of handle portion 14 extends, side visual angle
In tangent line and plant the angle of the crossing continuity variation of hair side 12a, but in the cross part of curved surface 13b and curved surface 14b, each other with tangent line
Between the angle of the crossing be not that the angle [alpha] 2 of 0 degree or 180 degree is intersected.Therefore, it in the cross part of curved surface 13b and curved surface 14b, is formed with
Crest line K3.Therefore, for neck 13 and handle portion 14, the side visual angle of the side of the length direction of crest line K2, K3 will be clipped
It is middle to plant curved surface 14a, 14b of the side hair side 12a in the arc profile of protrusion, the other side with the length direction for clipping crest line K2, K3
Side visual angle in plant the side hair side 12a and be connected in curved surface 13a, 13b of arc profile of recess, shape in the visual angle of side as a result,
As approximate S shape.
The boundary of the rear end side of neck 13 is defined by crest line K2, K3.Therefore, than crest line K2, K3, the side of more rear end is to match
It is equipped with the range of handle portion 14, the range between the range configured with head 12 and the range configured with handle portion 14, configuration
There is neck 13.
The end of the plant side hair side 12a of the front end side of handle portion 14 (in the visual angle of side, the side of more rear end than crest line K2)
For finger contact portion 19.The vertex of the front end side of finger contact portion 19 is provided by crest line K2.The vertex position (crest line K2) is, such as
As shown in Figure 1, the position in positive visual angle relative to the vertex that head 12 is the shortest distance.User is to exist thumb press
Mode on finger contact portion 19 holds handle portion 14, it is possible thereby to steadily operate toothbrush 1.
Neck 13 is integrally connected head 12 and handle portion 14.Be formed as following shapes as its an example about neck 13
Shape: the boundary position K1 (13 front end of neck) between head 12 and neck 13 be biased against slightly it is most thin to the position of handle portion 14,
As small cross-sectional area, keeping the sectional area, end side extends backward, the boundary K2 in rear end side until it between handle portion 14
Until, the shape of diameter is gradually expanded.Like this, gradually become from 12 side of head towards 14 side of handle portion by neck 13
Slightly, so that the flexure of neck 13 can also be absorbed, and usability is excellent when using toothbrush 1 with various holds or brush method.Wherein, from
From the point of view of use feeling, neck 13 needs to have elasticity, appropriateness flexure.
In order to allow neck 13 and lip contact when 12 insert port of head is intracavitary, the length of neck 13 be preferably 25mm~
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 and crest line K2 of handle portion 14 are at a distance of the position of 37mm.
Hold as toothbrush, it is known to place thumb near finger contact portion, handle portion is held integrally with palm
" holding ", and thumb is placed near finger contact portion, as " drot gfasplng " equally held that hold a pen.The present inventor deeply grinds
The position in the case where holding various toothbrushes with various holds, to exert a force when operating toothbrush is studied carefully.As a result known to: one of finger
It point is placed in finger contact portion vertex (position of crest line K2) at the averagely position of 37mm, becomes in operating point at this
One of heart.Therefore, which is defined as gripping center.In addition, having the further insight that simultaneously: the weight of the position and many ordinary toothbrush
Heart position is substantially uniform.
As shown in Fig. 2, setting the central point on 14 thickness direction of handle portion held at the G1 of center for connecting toothbrush 1
G2, the imaginary line work with the central point S2 on 12 thickness direction of head at the center S1 (referring to Fig.1) in plant hair portion 11
When for straight line N, straight line N is located at the top (+Z direction) of plane P.In other words, handlebody 15 has following curved shapes: to have
The handle portion 14 of center G1 is held positioned at the curved shape of mode than the plant hair side 12a on head 12 more by plant 11 side of hair portion
Shape.
Present inventor have discovered that, if keeping head thinning, making neck in the previous toothbrush that handlebody extends near linear shape
When attenuating, head and 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 carrying out brush and sweeping, if neck is bent, plant hair portion to more leaned on than common position the back side on head (that is, far from tooth
The direction of tooth or gum) displacement, the power applied to handle portion, which is difficult to sufficiently be conveyed to, plants hair portion.As a result it is judged as, handle portion
Operability significantly reduces.
Therefore, expect after the present inventor furthers investigate: as the toothbrush 1 of above-mentioned present embodiment, to than structure
At the plane P for planting hair side 12a more by 14 side of handle portion for planting 11 lateral bend handlebody 15 of hair portion, further, straight line N is optimized
When being formed by the parameters such as angle, θ with plane P, by the bending of handlebody 15, the flexure on head 12 and neck 13 can be offset.
Like this, toothbrush 1 according to the present embodiment, in the case where making that head 12 is thinning neck 13 being made to attenuate, even if head
12, neck 13 is bent, and can also be well maintained handle operation, and operability and handle portion operability two in oral cavity may be implemented
The excellent toothbrush 1 of person.
Hereinafter, being illustrated to the characteristic design parameters in the toothbrush 1 of present embodiment.
[the thickness t on head]
The thickness t on head 12 is thinner, then more can be improved in oral cavity it is operational, if but it is excessively thin when, the intensity on head 12 is easy to become
It obtains insufficient.Therefore, the constituent material of handlebody 15, bending elastic modulus etc. can be considered to determine in the thickness t on head 12.Head
The thickness t in portion 12 can be set in the range of 2.0mm~4.0mm.The thickness t on head 12 is more preferably 2.5mm~3.5mm or so.
[the minimum widith W1 of neck]
The minimum widith W1 of neck 13 is smaller, then more can be improved in oral cavity it is operational, if but it is too small when, the intensity of neck 13 is held
Easily become inadequate.Therefore, the constituent material of handlebody 15, bending elastic modulus etc. can be considered in the minimum widith W1 of neck 13
To determine.The minimum widith W1 of neck 13 may be set to 3.0mm~4.5mm.The minimum widith W1 of neck 13 is more preferably 3.5mm
~4.3mm or so.
[minimum thickness of neck D1]
The minimum thickness D1 of neck 13 can specify that are as follows: the width of neck 13 is the neck 13 at the smallest position in X-direction
Thickness.That is, in the toothbrush 1 of present embodiment, be with the cross sectional shape that the extending direction of neck 13 intersects vertically it is approximate circle,
The width of neck 13 is for the smallest position and with a thickness of the smallest position consistency in the X-axis direction.But the extension with neck 13
The cross sectional shape that direction intersects vertically can be not necessarily circle, may be, for example, polygon.In addition, the extending direction with neck 13 hangs down
The cross sectional shape directly intersected can also be different according to the position in X-direction, the width of neck 13 be the smallest position and
It can be not necessarily consistent with a thickness of the smallest position.
The minimum thickness D1 of neck 13, it is identically as the minimum widith W1 of neck 13, smaller, more it can be improved in oral cavity
Operability, 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 can be considered
The conditions such as constituent material, the bending elastic modulus of handlebody 15 determine.The minimum thickness D1 of neck 13 may be set to 3.0mm~
4.5mm.The minimum thickness D1 of neck 13 is more preferably 3.5mm~4.3mm or so.In the case where present embodiment, with neck 13
The cross sectional shape that intersects vertically of extending direction be approximate circle, therefore width and thickness is identical.That is, the minimum diameter of neck 13
Preferably 3.0mm~4.5mm, more preferably 3.5mm~4.3mm.
Herein, the shape factor of the front end area to neck 13 and back-end region is illustrated.
The front end area of neck 13 is (with the boundary position K1 on head 12 with the position of the rear end side distance 10mm in boundary position K1
Between region) be inlet port it is intracavitary and with clean site boundary physical interference more than region.Therefore, operational out of oral cavity
From the point of view of, in the side visual angle of the side plant hair side 12a on the head 12 in the region be preferably shaped to the plant hair side
It in the identical plane of 12a (in the same plane), or is the relationship parallel with the plant hair side 12a.It is therefore preferred that setting neck
Portion 12 with a thickness of D, using include in the visual angle of side plant the plane of hair side 12a as boundary, neck 12 ratio described in plane more above one
Side with a thickness of D11, further below than the plane side with a thickness of D12 (D=D11+D12) when, in neck front end area, begin
Whole D12 > D11, and the ratio between D12 and D11 with it is constant elapsed (variation of the D11/D12 in above-mentioned front end area 1.0 ±
0.15 range).
The back-end region (crest line K2 is with the region between the position of the front end side distance 20mm of crest line K2) of neck 13 with
Above-mentioned front end area is different, and the intracavitary situation of inlet port is few.About back-end region, in order to inhibit to be led by slim head, thin neck
The flexure of cause excessively (that is, in order to improve operability and handle portion operability in oral cavity), undertakes the effect for assigning change in shape, with
Just it sets up gripping central point angle, θ appropriate and holds center point height h.Especially since the side plant hair side 12a of back-end region
Shape (upside) mainly help the setting for holding central point angle, θ, so the shape in its side visual angle is set
For the circular shape than the front end area steeper (curvature is bigger).Further, by the change in shape, so that thickness increases
Add, therefore the root that bring load is easy the neck 12 concentrated is being swept by brush, can control flexure.
On the other hand, the back side (downside) of back-end region, although cooperating the change in shape in the side visual angle of above-mentioned upside
Same circular shape is formed, but needs to increase thickness to inhibit the flexure, therefore, is formed as than above-mentioned upside more
Add the circular shape of gentle (curvature is smaller).At this point, setting the position of the mobile 20mm from crest line K2 towards 12 side of head (front end side)
The above-mentioned thickness D11 at place is thickness D11 (20), is thickness D11 (10), rib the case where mobile 10mm from crest line K2 towards front end side
The case where line is thickness D11 (0), and when thickness D12 is similarly indicated, following relationships are set up.
(1) at the position of the front end side distance 20mm of crest line K2:
In the thickness D of the position, ratio shared by the thickness D11 of upside is 40 ± 10%.
At the position of the front end side distance 10mm of crest line K2:
In the thickness D of the position, ratio shared by the thickness D11 of upside be 40% or more, 90% hereinafter, preferably 60% with
Above, 80% or less.
At the position of 0mm (crest line K2):
In the thickness D of the position, ratio shared by the thickness D11 of upside is 45 or more, preferably 75% or more, more preferably
80%, further preferably 85% or more.About upper limit value, preferably 95% hereinafter, more preferably 90% or less.
About the ratio of thickness D11, angle, θ becomes bigger, then value becomes bigger.In addition, head 12 is set as thin
When type, since thickness itself is few, so in order to obtain defined angle, θ, the ratio of the thickness D11 of upside is further enlarged.
When the ratio of thickness D11 is below lower limit value, straight shape is become close to, defined gripping central point angle can not be obtained
Degree.In addition, in the root of neck 13, thickness D12 become greater to necessity or more even if assigning angle, the effect as thin neck drops
It is low.When thickness D12 is more than upper limit value, since the bending of neck 13 starts in earlier stage, so it is difficult to give gripping appropriate
Central point angle, and operability also reduces in oral cavity.
(2) position in the front end side distance 20mm of crest line K2 and the position of front end side distance 10mm in crest line K2,
The variation (D11 (10)/D11 (20)) of thickness D11 is 1.2 or more, preferably 1.4 or more, more preferably 1.7 or more.In addition, thick
The upper limit for spending the variation (D11 (10)/D11 (20)) of D11 is 2.5.
In the position and the position of the front end side distance 10mm in crest line K2, thickness D11 of the front end side distance 20mm of crest line K2
Variation (D11 (10)/D11 (20)) when being less than above-mentioned lower limit value, until the root for continueing to neck 13 due to straight shape, therefore
And central point angle is held as defined in can not obtaining.In the position of the front end side distance 20mm of crest line K2 and in the front end of crest line K2
When the position of lateral extent 10mm, thickness D11 variation (D11 (10)/D11 (20)) is more than above-mentioned upper limit value, due to neck 13
Bending start in earlier stage, so be difficult to give gripping central point angle appropriate, and operability also reduces in oral cavity.
The position and 0mm of the front end side distance 10mm of crest line K2 position, the variation of D11 be 1.4 or more, preferably 1.8
More than, more preferably 1.9 or more.In front end side, the upper limit of the position of the position and 0mm of distance 10mm, D11 variation is
3.0。
The position and 0mm of the front end side distance 10mm of crest line K2 position, the variation of D11 be less than above-mentioned lower limit value when, by
Until the root that straight shape continues to neck 13, so central point angle is held as defined in can not obtaining.Crest line K2's
When the position of the position and 0mm of front end side distance 10mm, D11 variation is more than above-mentioned upper limit value, due to the bending of neck 13
Start in earlier stage, so it is difficult to give gripping central point angle appropriate, and operability also reduces in oral cavity.
In the position of the front end side distance 10mm of the position and crest line K2 of the front end side distance 20mm of crest line K2, thickness
The change rate (D12 (20)/D12 (10)) of D12 is 1.3 or more, preferably 1.4 or more.
The position and 0mm of the front end side distance 10mm of crest line K2 position, the variation of thickness D12 be 1.3 or more, preferably
More than 1.4.
When it is below above-mentioned lower limit value, downside becomes to cooperate the change in shape of upside and be bent, and finger contact portion is useless
Ground thickens, it becomes difficult to hold.Upper limit value is not particularly limited, but the variation of the upside in preferably more than identical section.
Thickness (D11 (0)+D12 (0)) at the position of crest line K2 ranges preferably from 7mm or more, 15mm hereinafter, more preferably
8.4mm or more, 13.5mm are hereinafter, further preferably 8.8 or more, 10mm or less.
[distance a between head cardinal extremity~finger contact portion front end]
From the cardinal extremity (the boundary position K1 between neck 13 and head 12) on head 12 to the front end (neck 13 of finger contact portion 19
The distance between boundary K2 between handle portion 14) a is bigger, then planting mao portion 11 more can reach depths in oral cavity, more can
It improves to the cleaning effect in corner each in oral cavity, but in turn, the flexure of neck 13 becomes larger.On the other hand, distance a is smaller,
The bending deformation of neck 13 can then obtained smaller, but plant hair portion 11 to become more to be difficult to reach depths in oral cavity.Therefore, though distance a
The conditions such as constituent material, the bending elastic modulus of handlebody 15 so are also depended on, but may be set to such as 25mm~70mm or so.
[holding central point angle, θ]
Hereinafter, by the central point G2 on the thickness direction for holding the handle portion 14 at the G1 of center for connecting toothbrush 1 and planting hair
The straight line N of central point S2 on the thickness direction on the head 12 at the center S1 in portion 11, the plane that hair side 12a is planted with composition
P is formed by angle, θ and is known as holding central point angle, θ.
When gripping central point angle, θ is excessive, the difference between 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, the shape of handlebody 15 becomes linear when gripping central point angle, θ is too small,
It is unable to get the effect of the script of present embodiment.In view of these, hold central point angle, θ may be set to 5.0 degree or more,
10.0 below degree.It holds central point angle, θ and is more preferably 6.0 degree or more, 8.0 degree or less.
[holding center point height h]
By the central point G2 on the thickness direction for holding the handle portion 14 at the G1 of center of toothbrush 1 and constitute plant hair side 12a
The distance between plane P be defined as gripping center point height h.
Gripping center point height h may be set to 6.0mm or more, 15.5mm or less.The lower limit of gripping center point height h is preferred
For 7.0mm or more, in addition, its upper limit is preferably 15.0mm hereinafter, more preferably 14.5mm is hereinafter, further preferably 13.5mm
Hereinafter, more preferably 12.0mm is hereinafter, particularly preferably 11.0mm or less.As top/bottom latitude, preferably 7.0mm or more,
15.0mm is hereinafter, more preferably 7.0mm or more, 14.5mm are hereinafter, further preferably 7.0mm or more, 13.5mm are hereinafter, more preferably
7.0mm or more, 12.0mm are hereinafter, particularly preferred 7.0mm or more, 11.0mm or less.
[embodiment]
Hereinafter, enumerating embodiment, the present invention is explained in detail, but the present invention is not limited to following embodiments, can not depart from
Suitably change is implemented in the range of its main idea.
According to specification shown in table 1, by injection moulding production 1~embodiment of embodiment 10 and comparative example 1~compare
The toothbrush of example 4.In above-mentioned toothbrush, the width of handle portion, length, thickness and shape are all identical.By various trees shown in table 1
Rouge injection moulding, obtains the integrally formed object on Fig. 1 and head shown in Fig. 2, neck and handle portion.From the front end on head
Towards neck, that plants pore is arranged as 3 holes × 1 column, 4 holes × 6 column, 3 holes × 1 column.The width x length on head is remembered in table 1.It will
The pieces of meristogenetic tapered bristles (7.5mil) made of PBT plants hair by flat wire type to be implanted into head, makes tooth
Brush.
As the assessment item of each sample, operability and this 2 projects of handle operation in oral cavity of illustrating.About in oral cavity
Operability, " very excellent " are denoted as " ◎ ", and " excellent " is denoted as "○", and " slightly poor " is denoted as " △ ", and " excessively poor " is denoted as "×".Together
Sample, about handle operation, " very excellent " is denoted as " ◎ ", and " excellent " is denoted as "○", and " slightly poor " is denoted as " △ ", " very
Difference " is denoted as "×".
[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 comparatively close to linear shape.Therefore, really
It is poor to recognize operability and handle operation in the oral cavity of the toothbrush of comparative example 1.In addition, the head thickness t of the toothbrush of comparative example 2,
The minimum widith W1 and minimum thickness of neck D1 of neck are beyond outside numberical range of the invention.Therefore, comparative example is had confirmed that
Operability is poor in the oral cavity of 2 toothbrush.In addition, the gripping center point height h of the toothbrush of comparative example 3 exceeds numerical value model of the invention
Outside enclosing, have confirmed that operability and handle operation are poor in oral cavity.In the gripping central point angle, θ of the toothbrush of comparative example 4, gripping
Heart point height h exceeds outside numberical range of the invention, has confirmed that operability and handle operation are poor in oral cavity.
In contrast, the head thickness t of the toothbrush of 1~embodiment of embodiment 10, the minimum widith W1 of neck, neck be most
Whole parameters of small thickness D1, gripping central point angle, θ and gripping center point height h all fall in numberical range of the invention
It is interior.Even if having confirmed that toothbrush neck is bent as a result, both operability and handle operation are also all excellent in oral cavity.
In the case where generally planting hair using flat wire type, apply to head as squeezing into pressure brought by flat wire.In head
In the case that portion is thin, the intensity on the one hand relative to deformation when exerting a force is low, on the other hand, if neck is thick, intensity is high, brushes teeth
When pressure concentrate on head, the flexure on head becomes larger, it sometimes appear that usability reduce the case where.At this point, such as this embodiment party
The toothbrush 1 of formula like that, by making neck attenuate, maintains a degree of flexibility, so as to so that pressure when brushing teeth from
Head disperses to entire neck, and usability improves.Therefore, it in the case where flat wire type plants hair, can obtain especially significantly
Effect of the invention.
Claims (3)
1. a kind of toothbrush, has: the plant hair portion that multi beam pieces is constituted plants and is provided with the head for planting hair portion on hair side, from institute
State the extended neck in head, and the handle portion being extended from the neck, which is characterized in that
The head with a thickness of 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 plant hair side side of the rear end side of the neck, center configuration is formed at the plant hair side side and side visual angle
Described in plant hair side side in recess arc profile curved surface,
It connects the central point on the handle portion thickness direction of the gripping center position of the toothbrush and described plants hair portion
The straight line of central point on the head thickness direction of center position is formed by angle with the plane for planting hair side is constituted
Degree is 5.0 degree or more, 10.0 degree or less.
2. toothbrush according to claim 1, which is characterized in that the bending elastic modulus of the constituent material of the neck is
1000MPa or more, 2200MPa or less.
3. according to claim 1 or toothbrush as claimed in claim 2, which is characterized in that the constituent material of the neck is poly- third
Olefine resin.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111320531.5A CN113995223A (en) | 2016-10-28 | 2017-09-13 | Tooth brush |
| CN202111322290.8A CN113995224B (en) | 2016-10-28 | 2017-09-13 | Toothbrush with tooth brush |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016212030 | 2016-10-28 | ||
| JP2016-212030 | 2016-10-28 | ||
| PCT/JP2017/033093 WO2018079114A1 (en) | 2016-10-28 | 2017-09-13 | Toothbrush |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111320531.5A Division CN113995223A (en) | 2016-10-28 | 2017-09-13 | Tooth brush |
| CN202111322290.8A Division CN113995224B (en) | 2016-10-28 | 2017-09-13 | Toothbrush with tooth brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109890247A true CN109890247A (en) | 2019-06-14 |
| CN109890247B CN109890247B (en) | 2021-11-26 |
Family
ID=62024673
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111322290.8A Active CN113995224B (en) | 2016-10-28 | 2017-09-13 | Toothbrush with tooth brush |
| CN202111320531.5A Pending CN113995223A (en) | 2016-10-28 | 2017-09-13 | Tooth brush |
| CN201780066471.4A Active CN109890247B (en) | 2016-10-28 | 2017-09-13 | Tooth brush |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111322290.8A Active CN113995224B (en) | 2016-10-28 | 2017-09-13 | Toothbrush with tooth brush |
| CN202111320531.5A Pending CN113995223A (en) | 2016-10-28 | 2017-09-13 | Tooth brush |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7086002B2 (en) |
| KR (1) | KR102556409B1 (en) |
| CN (3) | CN113995224B (en) |
| SG (2) | SG10202104233SA (en) |
| WO (1) | WO2018079114A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021131553A1 (en) * | 2019-12-26 | 2021-07-01 | ライオン株式会社 | Toothbrush |
| JP7407091B2 (en) | 2020-09-03 | 2023-12-28 | ライオン株式会社 | toothbrush |
| JP2022100465A (en) * | 2020-12-24 | 2022-07-06 | ライオン株式会社 | toothbrush |
| JPWO2022239598A1 (en) | 2021-05-13 | 2022-11-17 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195971A (en) * | 1995-09-08 | 1998-10-14 | 科伦特工厂有限公司 | Toothbrush |
| CN1414836A (en) * | 1999-11-25 | 2003-04-30 | 强生株式会社 | Handle for tooth cleaning member |
| JP2005510330A (en) * | 2001-12-04 | 2005-04-21 | ジョンソン・アンド・ジョンソン・インダストリアル・エルティーディーエー | toothbrush |
| JP2011030950A (en) * | 2009-08-05 | 2011-02-17 | Ra Nobirita:Kk | Toothbrush for brushing molar |
| CN103957744A (en) * | 2011-12-07 | 2014-07-30 | 狮王株式会社 | Toothbrush |
| JP2015091283A (en) * | 2013-11-08 | 2015-05-14 | ジュンチョル ユン | Toothbrush |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50123071U (en) * | 1974-03-27 | 1975-10-08 | ||
| US4780924A (en) * | 1987-10-20 | 1988-11-01 | Hansen Paul D | Tooth brush with removable brush head |
| JP3387591B2 (en) | 1993-11-22 | 2003-03-17 | ジョンソン・エンド・ジョンソン株式会社 | toothbrush |
| JP3333827B2 (en) * | 1994-08-26 | 2002-10-15 | 花王株式会社 | toothbrush |
| GB9600414D0 (en) * | 1996-01-10 | 1996-03-13 | Lingner & Fischer Gmbh | Toothbrush |
| JPH10215949A (en) * | 1997-02-03 | 1998-08-18 | Lion Corp | Toothbrush handle |
| PL186890B1 (en) * | 1997-02-24 | 2004-03-31 | Smithkline Beecham Consumer | Tooth brush |
| CN2788638Y (en) * | 2005-03-21 | 2006-06-21 | 柯俊松 | T-V shape tooth brush |
| JP4816037B2 (en) * | 2005-12-02 | 2011-11-16 | サンスター株式会社 | toothbrush |
| JP5228219B2 (en) * | 2007-12-10 | 2013-07-03 | アース製薬株式会社 | Liquid dentifrice application brush |
| ES2538716T3 (en) * | 2009-03-18 | 2015-06-23 | Braun Gmbh | Toothbrush |
| JP5427486B2 (en) * | 2009-06-24 | 2014-02-26 | ライオン株式会社 | toothbrush |
| JP5530776B2 (en) | 2010-03-24 | 2014-06-25 | ライオン株式会社 | toothbrush |
| JP6170802B2 (en) * | 2013-10-02 | 2017-07-26 | ライオン株式会社 | Handle body for toothbrush, manufacturing method thereof, and toothbrush |
| TWM525109U (en) * | 2016-04-07 | 2016-07-11 | Huang-Nan Huang | Toothbrush bristle arrangement structure with gum massage effect |
-
2017
- 2017-09-13 SG SG10202104233SA patent/SG10202104233SA/en unknown
- 2017-09-13 CN CN202111322290.8A patent/CN113995224B/en active Active
- 2017-09-13 WO PCT/JP2017/033093 patent/WO2018079114A1/en active Application Filing
- 2017-09-13 SG SG11201903712UA patent/SG11201903712UA/en unknown
- 2017-09-13 CN CN202111320531.5A patent/CN113995223A/en active Pending
- 2017-09-13 JP JP2018547186A patent/JP7086002B2/en active Active
- 2017-09-13 KR KR1020197007297A patent/KR102556409B1/en active IP Right Grant
- 2017-09-13 CN CN201780066471.4A patent/CN109890247B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195971A (en) * | 1995-09-08 | 1998-10-14 | 科伦特工厂有限公司 | Toothbrush |
| CN1414836A (en) * | 1999-11-25 | 2003-04-30 | 强生株式会社 | Handle for tooth cleaning member |
| JP2005510330A (en) * | 2001-12-04 | 2005-04-21 | ジョンソン・アンド・ジョンソン・インダストリアル・エルティーディーエー | toothbrush |
| JP2011030950A (en) * | 2009-08-05 | 2011-02-17 | Ra Nobirita:Kk | Toothbrush for brushing molar |
| CN103957744A (en) * | 2011-12-07 | 2014-07-30 | 狮王株式会社 | Toothbrush |
| JP2015091283A (en) * | 2013-11-08 | 2015-05-14 | ジュンチョル ユン | Toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190069391A (en) | 2019-06-19 |
| WO2018079114A1 (en) | 2018-05-03 |
| CN109890247B (en) | 2021-11-26 |
| JPWO2018079114A1 (en) | 2019-09-12 |
| CN113995224B (en) | 2023-07-21 |
| CN113995224A (en) | 2022-02-01 |
| CN113995223A (en) | 2022-02-01 |
| SG10202104233SA (en) | 2021-06-29 |
| SG11201903712UA (en) | 2019-05-30 |
| JP7086002B2 (en) | 2022-06-17 |
| KR102556409B1 (en) | 2023-07-18 |
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