CN108778049A - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- CN108778049A CN108778049A CN201780016556.1A CN201780016556A CN108778049A CN 108778049 A CN108778049 A CN 108778049A CN 201780016556 A CN201780016556 A CN 201780016556A CN 108778049 A CN108778049 A CN 108778049A
- Authority
- CN
- China
- Prior art keywords
- neck
- head
- end side
- toothbrush
- rear end
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
-
- 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
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- Brushes (AREA)
Abstract
The thin toothbrush in head that excellent operability can be obtained is provided.The toothbrush have configuration front end side and planting be implanted on hair side (111) head (110) of pieces, the rear end side setting for extending to head neck (120) and extend to the handle portion (130) that the rear end side of neck is arranged.The thickness on head is 2.0~4.0mm.Neck is formed as：It is 3.5mm or more, 4.5mm with the minimum value for planting the width on the direction that the length direction parallel and with handle portion of hair side intersects vertically hereinafter, from the position of minimum value towards rear end side direction, constant width or becomes larger.If from the position of the minimum value in neck, it is parallelly W mm towards the width at the position of rear end side deviation 10mm with hair side is planted, when the thickness on direction to intersect vertically with plant hair side is D mm, the value acquired by D/W is for 0.7 or more, 2.5 hereinafter, bending coefficient M (mm4)=W × D3For 165mm4Above, 625mm4Below.
Description
Technical field
The present invention relates to toothbrushes.
This application claims based on March 9th, 2016 in the Japanese patent application the 2016-045368th filed an application of Japan and
The priority for the Japanese patent application the 2016-211879th that on October 28th, 2016 files an application in Japan, is hereby incorporated it
Content.
Background technology
In Patent Documents 1 to 3, is angularly considered based on operational in oral cavity, proposed the toothbrush for keeping head thickness thinning.
When the thickness for making head is thinning, the problems such as having strength reduction.Therefore, polyacetal resin (POM) equal strength can be used high
Resin.Particularly, flat wire made of metal is squeezed into head made of resin, the flat wire type of fixed bristles plants hair
In the case of, it sometimes appear that planting the insufficient situation of hair intensity, the folding strength on head.
[existing technical literature]
[patent document]
[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
The project of Xie Decision [Fa bright Yao]
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 thinning belt is come.Particularly, if neck broadens, not only further damage operation
Property, and the thinness of appearance head portion is not also notable, and the impression of commodity is also damaged.But in the case that neck attenuates, sometimes
There is the case where excessive deflection generates operational problem instead.In addition, intensity needs further to improve.In particular, in polypropylene
(PP) etc. in the case of the resins for universal use that can be generally used on toothbrush, project is more notable.
The present invention has been made in view of the above-described circumstances, and an object thereof is to provide it is a kind of can be obtained it is good operability,
The thin toothbrush in head.
The means to solve the problem
The 1st mode of the present invention provides a kind of toothbrush, which is characterized in that
Have configuration to be implanted with the head of pieces on front end side and plant hair side, extend to the neck that the rear end side on the head is arranged
The thickness of the handle portion being arranged with the rear end side for extending to the neck, the head is 2.0~4.0mm,
The neck is formed as：With the plant hair side on the parallel and direction that intersects vertically with the length direction of the handle portion
For the minimum value of width for 3.5mm or more, 4.5mm hereinafter, from the position of the minimum value towards rear end side direction, the width is permanent
Determine or become larger,
If from the position of the minimum value in the neck, parallelly deviate towards the rear end side with the plant hair side
The width at the position of 10mm is W mm, when the thickness on direction to intersect vertically with the plant hair side is D mm,
The value acquired by D/W be 0.7 or more, 2.5 hereinafter,
Bending coefficient M (mm4)=W × D3For 165mm4Above, 625mm4Below.
In addition, in the toothbrush that an embodiment of aforementioned present invention is related to, which is characterized in that the neck is by resinous wood
Material is formed, and the modulus of elasticity in static bending of the resin material is 1000MPa or more, 2200MPa or less.
In addition, in the toothbrush that an embodiment of aforementioned present invention is related to, which is characterized in that the neck is by polypropylene
Resin is formed.
[The effect of invention]
According to operational in good oral cavity the present invention can provide that can be obtained using resins for universal use
Toothbrush.
Description of the drawings
[Fig. 1] is the figure for indicating embodiments of the present invention, is the plan view of toothbrush 11.
[Fig. 2] is the lateral plan of above-mentioned toothbrush 11.
[Fig. 3] is the plan view for the front end side for amplifying toothbrush 11.
[Fig. 4] is the lateral plan for the front end side for amplifying toothbrush 11.
[Fig. 5 A] be one embodiment of the present invention relates to toothbrush plan view.
[Fig. 5 B] be one embodiment of the present invention relates to toothbrush lateral plan.
[Fig. 6 A] is the figure of the assay method for the deflection for illustrating head.
[Fig. 6 B] is the figure of the assay method for the deflection for illustrating head.
[symbol description]
11 ... toothbrushes, 12 ... handlebodys, 110 ... heads, 111 ... plant hair side, 120 ... necks, 130 ... handle portions
Specific implementation mode
Hereinafter, the handlebody of the toothbrush of the present invention and the embodiment of toothbrush, illustrate in conjunction with Fig. 1~Fig. 4.
In addition, following implementation is display an embodiment of the invention, and not limit the invention, in this hair
It can arbitrarily be changed within the scope of bright technological thought.In addition, in the following drawings, for ease of understanding each structure, practical structures with it is each
Engineer's scale or quantity in structure etc. will be different.
Fig. 1 is the plan view of toothbrush 11.Fig. 2 is the lateral plan of toothbrush 11.Fig. 3 is to carry out the front end side of toothbrush 11
The plan view of amplification.Fig. 4 is the lateral plan for being exaggerated the front end side of toothbrush 11.
The toothbrush 11 of present embodiment has：Configure front end and be implanted with bristle pieces 114 head 110, extend
The neck 120 that rear end side to head 110 is arranged, and the handle portion 130 of the rear end side setting of neck 120 is extended to (hereinafter, will
Head 110, neck 120 and handle portion 130 are collectively referred to as handlebody 12).
About handlebody, be integrally molded so as long ruler-like as a whole, for example, can using resin as material, pass through injection moulding
It obtains.
As the material of handlebody, the modulus of elasticity in static bending (JIS7171) can be enumerated in 1000MPa or more 2200MPa trees below
Fat can be lifted for example, acrylic resin (PP), polyacetal resin (POM), polystyrene resin (PS), poly terephthalic acid second two
Ester resin (PET), polybutylene terephthalate (PBT) resin (PBT), acrylonitrile butadiene styrene resin (ABS), polyarylate
Resin, polycarbonate resin, resin acrylonitrile styrene resin (AS) etc..Wherein, from the effect of the present invention significantly and in terms of cost
Consider, preferably as the acrylic resin of resins for universal use.
Above-mentioned resin can with a kind be used alone, can also two or more be used in combination.
In addition, grip in order to improve, handlebody is such as resin portion that can be soft by elastomer or all coverings.Use bullet
Property the soft resin such as body in the case of, from the point of view of improving cementability, preferred such as polyolefin, more preferable PP.
Head 110 has on the side (hereinafter referred to as upper surface side) of thickness direction plants hair side 111.Planting hair side 111
On be formed with multiple plant pores 112, the pieces 114 (with reference to Fig. 2) of bristle is implanted in planting pore 112.In addition, Fig. 1, Fig. 3
And in Fig. 4, the diagram of pieces 114 is omitted.
The rear end side end on the head 110 in present embodiment is defined by following position：If from configuration in front end
The outer rim of the plant pore 112 of side to the distance between the front end on head 110 be L11 when, from the plant pore configured in last end side
112 outer rim is towards the position of the direction distance L11 of rear end side.That is, as shown in figure 3, head 110 configuration with positioned at length side
Into the range 110A of the outer rim difference distance L11 of the plant pore 112 at both ends.The position of the rear end side of range 110A is head
The boundary in portion 110 and neck 120.
The front end side end of handle portion 130 is finger contact portion, and the front end side end of finger contact portion is neck 120 and handle
The boundary of hand 130.Finger contact portion is by following crest line zonings：For example, the plant hair side being formed in the rear end side of neck 120
The crest line of the cross part in the face for planting 111 side of hair side in the face of 111 sides and the front end side of handle portion 130, or it is formed in neck 120
Rear end side in plant hair side 111 the face of opposite side and the front end side of handle portion 130 in plant hair side 111 opposite side face
Cross part crest line.At this point, the boundary of neck 120 and handle portion 130 is defined by the crest line.
In addition, the plant hair side in the front end side in the face for planting hair side 111 side and handle portion 130 in the rear end side of neck 120
The face of 111 sides in the same plane without formed crest line in the case of, pass through the width side being formed in the rear end side of neck 120
To side and handle portion 130 front end side in width direction side cross part crest line, carry out zoning finger contact portion.
In this case, the boundary of neck 120 and handle portion 130 is also to be defined by the crest line.
For example, handle portion 130 is planting generally radiused shape, the neck 120 that 111 side of hair side is formed as convex in lateral plan
In the case where 111 side of plant hair side is formed as handlebody 12 of the embodiment of the S word shapes of recessed generally radiused shape, according to such as
Give a definition the boundary of neck 120 and handle portion 130.
111 side of plant hair side in the front end side of handle portion 130 is formed with center configuration opposite with hair side 111 is planted
Side (side in Fig. 2 and Fig. 4 than handle portion 130 further below), circle of 111 side of hair side in protrusion is planted in lateral plan
The curved surface 133 of arc profile.Similarly, in the side opposite with hair side 111 is planted of the front end side of handle portion 130, it is formed with center
Position is configured in the side opposite with hair side 111 is planted, the curved surface for planting 111 side of hair side in the arc profile of protrusion in lateral plan
134。
In addition, 111 side of plant hair side of the rear end side in neck 120, is formed with center configuration and is planting 111 (Fig. 2 of hair side
And the side more above than handle portion 130 in Fig. 4), song of 111 side of hair side in the arc profile of recess is planted in lateral plan
Face 123.Similarly, it in the side opposite with hair side 111 is planted of the rear end side of neck 120, is formed with center configuration and is planting
Hair side 111 plants curved surface 124 of 111 side of hair side in the arc profile of recess in lateral plan.
As curved surface 123 and curved surface 133 are advanced respectively along the length direction of handle portion 130, cutting in lateral plan
Line changes with the angle of the crossing continuity for planting hair side 111, but on the cross part of curved surface 123 and curved surface 133, between tangent line
The angle of the crossing be non-zero or 180 degree angle, θ 1 intersect.Therefore, in the cross part of curved surface 123 and curved surface 133, it is formed with crest line
131。
About curved surface 124 and curved surface 134, also respectively with advancing on the length direction of handle portion 130, lateral plan
In tangent line change with the angle of the crossing continuity for planting hair side 111, but in the cross part of curved surface 124 and curved surface 134, each other with tangent line
Between the angle of the crossing be non-zero or 180 degree angle, θ 2 intersect.Therefore, in the cross part of curved surface 124 and curved surface 134, it is formed with rib
Line 132.Therefore, neck 120 and handle portion 130, by clip crest line 131,132 length direction side in lateral plan
It is middle to plant the other side of 111 side of hair side in the curved surface 133,134 of the arc profile of protrusion and the length direction for clipping crest line 131,132
111 side of hair side is planted in lateral plan in the curved surface 123,124 of the arc profile of recess to be connected, and is thus formed in lateral plan
Approximate S shape.
The boundary of the rear end side of neck 120 is defined by crest line 131,132.Therefore, than 131,132 more rear end of crest line
Side is equipped with the range 130A of handle portion 130, in the range 110A configured with head 110 and the model configured with handle portion 130
It encloses and is configured with neck 120 in the range 120A between 130A.
The end (side of more rear end than crest line 131) of 111 side of plant hair side in the front end side of handle portion 130 connects for finger
Contact portion.User's thumb contact finger contact portion holds handle portion 130, as a result, stably operable toothbrush 11.In addition, handle
Side of the position of crest line 132 on the length direction in portion 130 in the more rear end than crest line 131.Therefore, with the position of crest line 132
It is compared in the case where side of more front end than crest line 131, finger contact portion thickens, and the operation of toothbrush 11 can be made more stable.
The length of handlebody 12, is not particularly limited, and may be, for example, 100~200mm.
The width on head 110, that is, and the width in direction that with the length direction of handle portion 130 intersects vertically parallel with hair side 111 is planted
Degree (hereinafter simply referred to as width) is not particularly limited, for example, it is preferable to 5~16mm, more preferable 8~12mm.If above-mentioned lower limiting value
When above, the area of implantation pieces 114 is can be sufficiently ensured, if when below above-mentioned upper limit value, can further improve in oral cavity and grasp
The property made.
The length on head 110 is not particularly limited, for example, it is preferable to 10~33mm, more preferable 12~28mm.If above-mentioned lower limiting value
When above, the area of implantation pieces 114 is can be sufficiently ensured, if when below above-mentioned upper limit value, can further improve in oral cavity and grasp
The property made.
Material Deng Lai Decision, which can be considered, in the thickness on head 110 determines, for example, it is preferable to 2.0~4.0mm.If more than above-mentioned lower limiting value
When, the intensity on head 110 is can further improve, if when below above-mentioned upper limit value, the attainability for reaching molar can be improved, simultaneously
It can further improve operational in oral cavity.
In order to allow neck 120 to contact lip, the length preferably such as 25 of neck 120 when by 110 insert port intracavitary of head
~70mm.
The width of neck 120 is formed as：It is constant or become larger towards rear end side direction from the position of minimum value.Neck 120
Width from the position of minimum value towards rear end side direction it is constant in the case of, the position of minimum value is defined as front end side
Position.Neck 120 in present embodiment is formed as：Its width with from the position of minimum value 121 towards rear end side
To and become larger.Material Deng Lai Decision, which can be considered, in the width of neck 120 determines, for example, the minimum widith of neck 120 is preferred
3.5mm or more, 4.5mm are hereinafter, more preferable 3.7mm or more, 4.3mm or less.If when more than above-mentioned lower limiting value, can further carry
The intensity of high neck 120, if when below above-mentioned upper limit value, lip is easy to be closed, in addition, the arrival for reaching molar can be improved
Property, while can further improve operational in oral cavity.
In addition, setting from the width in neck 120 as the position 121 of minimum value, with plant hair side 111 parallelly towards rear end
Width at position 122 of the lateral deviation from 10mm is W1The thickness on direction that plant hair side 111 at mm, with position 122 intersects vertically
Degree is D1When mm, by D1/W1The value acquired preferably 0.7 or more, 2.5 are hereinafter, further preferred 0.8 or more, 2.0 hereinafter, especially excellent
Select 0.8 or more, 1.5 or less.
In the case of the minimum widith of neck 120 is 3.5mm or more, 4.5mm or less, by D1/W1The value found out is less than upper
There is the possibility that neck 120 is easy flexure, operability reduces in the case of stating lower limiting value, when brushing teeth, meanwhile, have in neck 120
Broaden, on the basis of operability is impaired, the thickness of appearance head portion 110 also not significantly, the possibility that the impression of commodity is also damaged.
On the other hand, by D1/W1In the case that the value found out is more than above-mentioned upper limit value, there is thickness D1Become larger, brush mouth when sweeping occlusal surface
Lip is difficult to the possibility being closed.In addition, there is the possibility for the impaired performance that operability improves as obtained from keeping head 110 thinning
Property.Therefore, by D1/W1When the value found out is if 0.7 or more, 2.5 or less, it is easy to maintain to obtain by keeping head 110 thinning on one side
The operability arrived improves, and closure lip brush and swept on one side.
Furthermore it is known that generally identical in material, the deflection of rigid body by " section second moment " larger shadow
It rings.Since 3 powers of 1 power of deflection and width W, thickness D are proportional, so in order to reduce deflection, preferably one
Side keeps thickness D, and it is bottom line to make width on one side.
For example, setting bending coefficient M (mm4)=W × D3When, by the width W in the position of neck 120 1210, thickness D0It calculates
Bending coefficient M0It is preferred that 165mm4Above, 625mm4Hereinafter, further preferred 180mm4Above, 525mm4Hereinafter, particularly preferably
200mm4Above, 330mm4Below.In addition, the wide W of the position 122 by neck 1201, thickness D1Calculated bending coefficient M1
For 165mm4Above, 625mm4Hereinafter, more preferable 180mm4Above, 525mm4Hereinafter, further preferred 200mm4Above, 330mm4
Hereinafter, further preferred 270mm4Above, 310mm4Below.By from position 121, and hair side 111 is planted parallelly towards rear end
At position of the lateral deviation from 20mm, the width W in neck 1202, thickness D2Calculated bending coefficient M2It is preferred that 350mm4Above,
550mm4Below.By parallelly deviateing towards rear end side at the position of 30mm with plant hair side 111 from position 121, neck 120
In wide W3, thickness D3Calculated bending coefficient M3It is preferred that 600mm4Above, 1500mm4Below.
If the bending coefficient M at position 122 is in 165mm4Above, 625mm4When following, it can help to brush when lip is closed and sweep
Property improve, while operability deterioration can be prevented caused by excessive deflection.
As the change rate of bending coefficient M, between position 121 and position 122, preferably 1.0 or more, 1.3 or less.This
Outside, as position 122 and from position 121 towards rear end side deviate 20mm position between bending coefficient M change rate,
It is preferred that 1.3 or more, 1.8 or less.As from position 121 towards rear end side deviate 20mm position with from position 121 to
Rear end side deviate 30mm position between bending coefficient M change rate, preferably 1.7 or more, 3.0 hereinafter, more preferable 1.8 with
Above, 3.0 or less.In addition, the change rate is the flexure at the position of the bending coefficient divided by front end side at the position of rear end side
The obtained value of coefficient, for example, between position 121 and position 122, based on the bending coefficient M at position 1210With position 122
The bending coefficient M at place1, as M1/M0Calculated value.
If bending coefficient M and its change rate within the above range when, operational reduction will not be caused, be easy when lip is closed
Brush is carried out to sweep.
114 beam of pieces has more bristles.From plant hair side 111 to the length (staple length) of the front end of pieces 114, it is contemplated that pieces
Bristle rigidity Deng Lai Decision needed for 114 are fixed, may be, for example, 6~13mm.Whole pieces 114 can be identical staple length, can also phase
It is mutually different.
The thickness (pieces diameter) of pieces 114 can be considered the bristle rigidity Deng Lai Decision needed for pieces 114 and determine, and may be, for example,
1~3mm.Whole pieces 114 can be identical pieces diameter, can also be mutually different.
As the bristle for constituting pieces 114, can lift for example, towards hair front end and to be gradually reduced its diameter, hair front end sharp
The bristle (taper hair) of change, from hair side 111 is planted towards essentially identical bristle of hair front end, its diameter (straight type hair) etc..As straight
Type hair, it is that the plane person or hair front end spherical shape substantially parallel with hair side 111 is planted turn to hemispherical person that can enumerate mao front end.
The material of bristle, can illustrate such as 6-12 nylon (6-12NY), 6-10 nylon (6-10NY) polyamide, PET, PBT,
Polypropylene terephthalate (PTT), polyethylene naphthalate (PEN), polybutylene naphthalate (PBN) etc. are poly-
Elastomer resins such as the polyolefin such as ester, PP, polyolefin elastomer, styrene series elastomer etc..These resin materials can be with a kind
It is used singly or two or more kinds in combination.In addition, as bristle, can enumerate with including core and be arranged on the outside of the core extremely
The bristle made of polyester of the multiple cored structure of few 1 layer or more of sheath portion.
The cross sectional shape of bristle, is not particularly limited, and can be the circles such as circular, ellipse, polygon, star, three
The bunge bedstraw herb shape etc. of the cloverleaf pattern of piece leaf, four leaves.The cross sectional shape of whole bristles may be the same or different.
The thickness of bristle can be considered material Deng Lai Decision and determine, and in the case of cross section is circular, may be, for example, 6~9mil
(1mil=1/1000inch=0.025mm).Further, it is contemplated that use feeling, brush Sweep senses, cleaning effect, durability etc., thickness is different
More bristles can be used in any combination.
The manufacturing method of toothbrush 11 is to be molded handlebody 12 by being injection moulded first.
Then, pieces 114 is implanted in the head 110 of obtained handlebody 12.It, can as the fur planting method of pieces 114
It enumerates：It is two by 114 1 folding of pieces, the flat wire sandwiched therebetween is squeezed into and plants pore 112, is thus implanted into the flat of pieces 114
Horizontal line formula plants hair；By the indentation of the lower end of pieces 114 as in the molten resin in plant hair portion and fixed hot melt adhesive method；By hair
The lower end of beam 114 is heated, and formation, which dissolves, injects molten resin in the backward mold of block, the Mo Neifa (in-mold in hair portion are planted in molding
Process) etc..
As described above, toothbrush 11 according to the present embodiment, on the one hand by allowing the minimum widith in neck 120 to be
3.5mm or more, 4.5mm or less, it is ensured that be easy to be closed lip and carry out the state swept of brush, on the other hand found out by D/W by allowing
Value for 0.7 or more, 2.5 hereinafter, the engineering plastics such as polyacetals needless to say, the case where even with resins for universal use such as polypropylene
Also can avoid operability reduces.
In the case where flat wire type plants hair, it is applied with from squeezing into the pressure that flat wire is brought to head 110.On the one hand,
Head 110 is relatively thin, and the intensity of deformation when for force is relatively low, and on the other hand, neck 120 is relatively thick, in the case of intensity height, brush
Pressure when tooth concentrates on head 110, it sometimes appear that the case where flexure on head 110 becomes larger, usability reduces.With this phase
Right, toothbrush 11 according to the present embodiment with a degree of flexibility, thus can will be brushed teeth by making neck 120 attenuate
When pressure be dispersed to that neck 120 is whole, and usability is improved from head 110.It therefore, can be in the case that flat wire type plants hair
Particularly marked degree obtain the effect of the present invention.
(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, " the long axis direction length for planting hair portion " refers to, the plant positioned at front end side when head is observed in plan view
The front end of pore and positioned at last end side plant pore the distance between rear end.
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 more particularly described in conjunction with the toothbrush 21 as shown in Fig. 5 A, Fig. 5 B, Fig. 6 A and Fig. 6 B.Toothbrush 21 has：?
It is the head 22 of approximate quadrangle in plan view, extends to the neck 24 of the setting of head 22, and extends to the setting of neck 24
Handle 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 handle
Hand body 210.
Head 22, towards neck 24, expands, then with equal in plan view with from front end 29 in the direction of the width
Width extend, next narrow in the direction of the width, until the boundary P1 of itself and neck 24.Neck 24, from the P1 of boundary to
Handle portion 26, is extended 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. 5 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 what width broadened
In the case of toothbrush, 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 L21, with the front end 29 of handlebody 210 at a distance of 17.5% position (for example, length
When L21 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 slowly 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 slowly changes position and measures width on one side, using the position of width minimum as boundary P1.
The deflection A on head 22, measures in accordance with the following methods.
As shown in Figure 6A, by make plant hair side 220 towards the top of vertical direction in a manner of, on the position (boundary of neck most thin portion
P1 at position) toothbrush 21 is fixed with jig 2100.At this point, the height H on the basis of the height of the front end of handlebody 210 290。
Then, as shown in Figure 6B, 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：Long axis direction length L24 (Fig. 5 A) in head 22 relative to plant hair portion,
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 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)
Neck deflection B, 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.It is opposite in head again under the stationary state
In the long axis direction length for planting hair portion, the hammer of 200g is suspended in midair at 50 ± 3% position with the front end for planting hair portion, after 10 seconds
Shift amount (unit be mm) deflection B as neck of the handlebody front end in height from the altitude datum.
The boundary P2 of neck and handle portion is：The expanding terminal of neck, that is, in plan view, form broadening part
The changed position of bending direction of the curve of the terminal of the straight line of two edge or two edge of formation broadening part.In Fig. 5 A,
It is：The straight line or curve R2 of two edge of the part to broaden from formation width in neck in the plan view of neck and handle portion
Start, 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 L21, with the front end 29 of handlebody 210 at a distance of 42.2% position (for example, long
Spend in the case that L21 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.
Deflection A in addition to fixing the position of toothbrush 21 and the position S and head 22 of suspention hammer 2102 with jig 2100
Assay method difference other than, the deflection A on remaining and head is carried out similarly, and measures the deflection of the neck 24 in toothbrush 21
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 feelings that hair portion is 19mm
Under condition, 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 be made to reach the oral cavities inner edge corner angles such as molar depths, further increased in oral cavity
Sweeping forces.Further, bristle enters the entering raising of oral pocket, further increases the sweeping forces of oral pocket.Deflection B
If when below the upper limit value, being easy to inhibit the strength reduction of neck.Further, toothbrush 21 will not become excessively 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 in the range in (A × B)
22 and neck 24 coordinate appropriateness flexure.When making plant hair portion as a result, relative to object position (tooth, gum etc.) sliding is cleaned,
The softness and resiliency in plant hair portion are shown, the contact sense for planting hair portion becomes good.In addition, the lower limiting value of (A × B) is 0.8 or more,
It is preferred that 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, to right
The contact sense of gum is good, can obtain the higher massage effect to gum, and use feeling improves.(A × B) upper limit value be 10 with
Under, preferably 6 hereinafter, more preferable 3.5 or less.By allowing (A × B) in the upper limit value hereinafter, to by head 22 and neck 24
The region of formation will not excessive deflection, can inhibit operability reduce and sweeping forces reduce.Furthermore, it is possible to inhibit excessively to be scratched by described
The massage effect of gum is reduced caused by song 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, and resiliency height carries
Height becomes good to the contact sense of gum, and user is easy massage effect of the practical impression 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,
The deflection of neck 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 tooth
Weakness when brushing 21 is felt.
(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.The holding mode of handle portion 26 is not particularly limited, and can grasp
Formula can also be a drot gfasplng.It is cleaned generally, due to while applying pressure to object position, so in any gripping side
In formula, all thumb etc. is contacted 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 via 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 molar depths, and sweeping forces improve in oral cavity.Further,
It is easy that bristle is allowed to enter oral pocket, the sweeping forces of oral pocket improve.Further, since appropriate flexure can be obtained, so plant hair portion
Softness and resiliency improve, plant hair portion and good become to the contact sense of gum, can obtain, to the good massage effect of gum, making
It is improved with sense.
[embodiment]
Hereinafter, enumerating embodiment, the present invention will be described in detail, but the present invention is not limited to following embodiments, can be wanted not departing from it
Suitably change is implemented in the range of purport.
[table 1]
(Examples 1 to 5, comparative example 1~7)
According to specification shown in above-mentioned [table 1], the tooth of the Examples 1 to 5 and comparative example 1~7 that are formed with neck 120 is made
Brush.The width of head and handle portion, length, thickness, shape are all identical.PP resins are injection moulded, are obtained in Fig. 3~4
(towards handlebody from the front end on head, that plants pore is arranged as 3 hole × 1 for the head of record and the integrated molding object of handlebody
Row, 4 holes × 6 arrange, 3 holes × 1 arranges.The width on head is 10mm, length 25mm, thickness 3.0mm.The length of handlebody is
110mm.The length of neck is 48mm).By the pieces of the tapered bristles (7.5mil) formed the long filament made of PBT, pass through
Flat wire type plants hair and is implanted into head, makes toothbrush.
The position of the width minimum of neck in each example, from its minimum position towards rear end side deviate 10mm, 20mm,
The value acquired by D/W in each position of 30mm, by W × D3The value acquired is such as shown in [table 2].In addition, by each example by W ×
D3The calculated change rate of bending coefficient of the ground as described above each position of the value acquired is such as shown in [table 3].
(evaluation method)
For the toothbrush of each example, with following methods evaluation " operational (the mobile easiness in mouth) in the oral cavity of toothbrush ".
The operational > of < toothbrushes
For the operability of toothbrush, 10 people of Specialty Experiment group uses the toothbrush of each example, according to the evaluation of following evaluation criteria " in oral cavity
Operability ".The average mark of 10 people of Specialty Experiment group is " ◎ " at 2.5 points or more, and average mark is at 2.0 points or more, less than 2.5 points
"○", average mark are " △ " at 1.5 points or more, less than 2.0 points, and it is "×" that average mark, which is less than 1.5 points,.
《Evaluation criteria》
3 points：The mobile easiness in mouth can very be experienced.
2 points：Experience the mobile easiness in mouth.
1 point：The mobile easiness in mouth can less be experienced.
0 point：It is not felt by the mobile easiness in mouth.
[table 2]
[table 3]
Width × thickness3[W×D3] change rate
As shown in table 2, can confirm：Thickness on head is 2.0~4.0mm, the width minimum of neck be 3.5mm with
Upper, 4.5mm towards rear end side from the position of the minimum value in neck hereinafter, deviateing being acquired by D/W at the positions 10mm
Value is for 0.7 or more, 2.5 hereinafter, bending coefficient M (mm4)=W × D3For 165mm4Above, 625mm4In the case of below, it can obtain
To good operability.
More than, the suitable embodiment of the present invention is illustrated simultaneously in conjunction with attached drawing, but the present invention is not limited to
These examples are from need not say.Variously-shaped or combination of each structure member shown in above-mentioned example etc. is an example,
Without departing from the range of present subject matter, design requirement etc. can be based on and made various changes.
For example, in the toothbrush 11 of the above embodiment, neck 120 is illustrated from the position of minimum widith towards rear end side
Direction and structure that width becomes larger, but it is not limited to this structure, can also be to be extended towards rear end side with same widths
Structure.The structure that even neck 120 is extended with same widths towards rear end side, it is also preferred that towards rear from minimum widith position
It is 0.7 or more, 2.5 or less that the value acquired by D/W at the position of 10mm is deviateed in end side.
Claims (3)
1. a kind of toothbrush, which is characterized in that
Have：The head for being implanted with pieces on front end side and plant hair side is configured, the neck of the rear end side setting on the head is extended to
Portion, and extend to the handle portion of the rear end side setting of the neck；
The thickness on the head is 2.0~4.0mm,
The neck is formed as：With the plant hair side on the parallel and direction that intersects vertically with the length direction of the handle portion
For the minimum value of width for 3.5mm or more, 4.5mm hereinafter, from the position of the minimum value towards rear end side direction, the width is permanent
Determine or become larger,
If from the position of the minimum value in the neck, parallelly deviate towards the rear end side with the plant hair side
The width at the position of 10mm is W mm, when the thickness on direction to intersect vertically with the plant hair side is D mm,
The value acquired by D/W be 0.7 or more, 2.5 hereinafter,
Bending coefficient M=W × D3For 165mm4Above, 625mm4Hereinafter, wherein the unit of bending coefficient M is mm4。
2. toothbrush according to claim 1, which is characterized in that
The neck is formed by resin material,
The modulus of elasticity in static bending of the resin material is 1000MPa or more, 2200MPa or less.
3. toothbrush according to claim 1 or 2, which is characterized in that the neck is formed by acrylic resin.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010118514.2A CN111227498B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN202010118515.7A CN111297042B (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 | ||
| JP2016-211879 | 2016-10-28 | ||
| JP2016211879 | 2016-10-28 | ||
| PCT/JP2017/009502 WO2017155045A1 (en) | 2016-03-09 | 2017-03-09 | Toothbrush |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010118515.7A Division CN111297042B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN202010118514.2A Division CN111227498B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108778049A true CN108778049A (en) | 2018-11-09 |
| CN108778049B CN108778049B (en) | 2020-03-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010118514.2A Active CN111227498B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN201780016556.1A Active CN108778049B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
| CN202010118515.7A Active CN111297042B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010118514.2A Active CN111227498B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010118515.7A Active CN111297042B (en) | 2016-03-09 | 2017-03-09 | Tooth brush |
Country Status (6)
| Country | Link |
|---|---|
| KR (3) | KR102418459B1 (en) |
| CN (3) | CN111227498B (en) |
| MY (1) | MY197050A (en) |
| SG (4) | SG10202008614TA (en) |
| TW (1) | TWI753888B (en) |
| WO (1) | WO2017155045A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG11202004600XA (en) * | 2017-11-30 | 2020-06-29 | Lion Corp | Replacement brush for electric toothbrush, and electric toothbrush |
| WO2019230838A1 (en) * | 2018-05-31 | 2019-12-05 | ライオン株式会社 | Tooth brush |
| TWI802701B (en) * | 2018-05-31 | 2023-05-21 | 日商獅子股份有限公司 | Toothbrush |
| CN114431597A (en) * | 2020-11-05 | 2022-05-06 | 好维股份有限公司 | Efficient cleaning toothbrush with multiple bristle surface specifications of single product |
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- 2017-03-09 MY MYPI2018703107A patent/MY197050A/en unknown
- 2017-03-09 KR KR1020187021973A patent/KR102418459B1/en active IP Right Grant
- 2017-03-09 SG SG10202008614TA patent/SG10202008614TA/en unknown
- 2017-03-09 SG SG10202008598RA patent/SG10202008598RA/en unknown
- 2017-03-09 KR KR1020207020718A patent/KR102418461B1/en active IP Right Grant
- 2017-03-09 SG SG10202008599VA patent/SG10202008599VA/en unknown
- 2017-03-09 WO PCT/JP2017/009502 patent/WO2017155045A1/en active Application Filing
- 2017-03-09 TW TW106107736A patent/TWI753888B/en active
- 2017-03-09 CN CN202010118514.2A patent/CN111227498B/en active Active
- 2017-03-09 CN CN201780016556.1A patent/CN108778049B/en active Active
- 2017-03-09 KR KR1020207020717A patent/KR102418463B1/en active IP Right Grant
- 2017-03-09 SG SG11201807594RA patent/SG11201807594RA/en unknown
- 2017-03-09 CN CN202010118515.7A patent/CN111297042B/en active Active
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| JP2013118944A (en) * | 2011-12-07 | 2013-06-17 | Lion Corp | Toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI753888B (en) | 2022-02-01 |
| CN111227498A (en) | 2020-06-05 |
| SG11201807594RA (en) | 2018-10-30 |
| KR102418461B1 (en) | 2022-07-08 |
| MY197050A (en) | 2023-05-23 |
| CN111297042B (en) | 2021-07-06 |
| SG10202008599VA (en) | 2020-10-29 |
| SG10202008614TA (en) | 2020-10-29 |
| KR20200090937A (en) | 2020-07-29 |
| KR102418459B1 (en) | 2022-07-08 |
| TW201733492A (en) | 2017-10-01 |
| SG10202008598RA (en) | 2020-10-29 |
| KR20180120144A (en) | 2018-11-05 |
| CN111297042A (en) | 2020-06-19 |
| WO2017155045A1 (en) | 2017-09-14 |
| KR20200090938A (en) | 2020-07-29 |
| KR102418463B1 (en) | 2022-07-08 |
| CN108778049B (en) | 2020-03-24 |
| CN111227498B (en) | 2022-04-05 |
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