CN103025198B - Interdental brush - Google Patents
Interdental brush Download PDFInfo
- Publication number
- CN103025198B CN103025198B CN201180035638.3A CN201180035638A CN103025198B CN 103025198 B CN103025198 B CN 103025198B CN 201180035638 A CN201180035638 A CN 201180035638A CN 103025198 B CN103025198 B CN 103025198B
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- China
- Prior art keywords
- wire rod
- tapering
- nozzle body
- brush
- line part
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Classifications
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0055—Brushes combined with other articles normally separate from the brushing process, e.g. combs, razors, mirrors
- A46B15/0069—Brushes fitted with a interdental devices, e.g. toothpick
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
- A46B3/18—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed on or between belts or wires
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- 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
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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
- A46B2200/108—Inter-dental toothbrush, i.e. for cleaning interdental spaces specifically
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- Brushes (AREA)
Abstract
The invention provides a kind of interdental brush, it has: handle body; Nozzle body, this nozzle body is projecting on described handle body; And brush body, this brush body is inserted on the wire rod of described nozzle body at cardinal extremity and is provided with filamentous, described nozzle body has tapering and line part, described nozzle body is deflection along with the action of described brush body, described tapering is tapered towards its top, and the side in described tapering forms concavity curved surface from described top to cardinal extremity, described line part is extended on the top in described tapering, this line part roughly the same on whole bearing of trend with the shape in the cross section that bearing of trend intersects vertically.Adopt the present invention, the durability of wire rod fully improves, even if access times increase, wire rod is also difficult to fracture.
Description
Technical field
The present invention relates to and a kind of Clean-interdental brush is carried out between cog.
The application requires priority according on July 23rd, 2010 in No. 2010-166043, the Patent of Japanese publication, and by its content quotation at this.
Background technology
Interdental brush, is mainly used to carry out Clean-secondary apparatus as to the gap (between cog) between the tooth being difficult to clean with toothbrush and tooth.
As general interdental brush, there will be a known so a kind of toothbrush, it comprises: the brush body between metal wire rod filamentous being clamped in twisted; And be inserted with the handle body of cardinal extremity of wire rod of described brush body.In this interdental brush, in order to be inserted between narrow and small adjacent teeth by brush body, and diameter is used to be the thin wire rod of about 0.23 ~ 0.40mm.
In the between cog employing interdental brush is clean, makes brush body insert between cog and move back and forth, with filamentous the tartar etc. being deposited between cog stirred and get, remove.
In interdental brush when so using, wire rod bends repeatedly and returns to rectilinear form.Therefore, when access times increase, number of bends just increases, therefore wire rod produces metal fatigue.Its intensity of thin wire rod of above-mentioned such diameter is not talkative is high, therefore when the access times of interdental brush increase, wire rod produce metal fatigue time, may fracture be produced.Gauge or diameter of wire diminishes this tendency more clearly.In addition, when carrying out clean to the between cog of the inside tooth, bending wire obtains greatly, therefore has the tendency more easily ruptured.
In addition, in interdental brush in the past, the fracture position of wire rod easily produces near the part exposed at wire rod and the portion boundary imbedding handle body etc., and when rupturing in this position, brush body may remain between cog.Remain between cog, especially remain in the brush body of between cog of the inside tooth and be difficult to take out.
In the past, for the problems referred to above, do a kind of invention improving the durability of wire rod.Patent document 1 ~ 4 discloses so a kind of scheme: as material and the shape of the part be fixed by wire rod of handle body, the material that the stress that wire rod during bending produces can be disperseed by selection and shape.Patent document 5 discloses a kind of so method: the recess part of the fixing wire rod of handle body being made the mortar shape of axle centered by wire rod.Patent document 6 ~ 9 discloses so a kind of scheme: the top ends being formed the handle body of fixing wire rod by elastomeric material.
Patent document 1: Japanese Patent No. 4008284 publication
Patent document 2: Japanese Unexamined Patent Publication 2001-204549 publication
Patent document 3: Japanese Unexamined Patent Publication 2005-224268 publication
Patent document 4: Japanese Unexamined Patent Publication 4-97744 publication
Patent document 5: Japanese Unexamined Patent Publication 2000-197520 publication
Patent document 6: Japanese Unexamined Patent Application Publication 2003-513700 publication
Patent document 7: Japanese Unexamined Patent Publication 9-168426 publication
Patent document 8: Japanese Patent Publication 4-46576 publication
Patent document 9: Japanese Patent Publication 4-46577 publication
Invent problem to be solved
But, even if utilize the method described in patent document 1 ~ 9, be also difficult to obtain enough durability.In addition, in interdental brush, require the situation preventing broken wires, brush body remains between cog, and in the method described in patent document 1 ~ 9, this requirement can not be met.
Summary of the invention
Therefore, the object of the invention is to, provide a kind of interdental brush, the durability of its wire rod is enough large, even if access times increase, wire rod is also difficult to fracture.
For solving the means of problem
Interdental brush of the present invention, it has: handle body; Nozzle body, this nozzle body is projecting on described handle body; And brush body, this brush body is inserted on the wire rod of described nozzle body at cardinal extremity and is provided with filamentous, and described nozzle body has: tapering, and this tapering is tapered towards top and the formation of its side becomes large concavity curved surface from top to cardinal extremity curvature; And line part 20b, this line part 20b is extended on the top of tapering 20a, this line part 20b's is roughly the same on whole bearing of trend with the shape in the cross section that bearing of trend intersects vertically, and the diameter of this line part 20b is less than 5.0 times of the diameter of described wire rod, and described nozzle body is deflection along with the action of described brush body.
In addition, in interdental brush of the present invention, preferably, the Co alloy that described wire rod is 30 ~ 60 quality % by Co content is formed.
That is, the first technical scheme of the present invention is that interdental brush has: handle body; Nozzle body, this nozzle body is projecting on described handle body; And brush body, this brush body is inserted on the wire rod of described nozzle body at cardinal extremity and is provided with filamentous,
Described nozzle body has tapering and line part,
Described nozzle body is deflection along with the action of described brush body,
Described tapering is tapered towards its top, and the side in described tapering forms concavity curved surface from described top to cardinal extremity,
Described line part is extended on the top in described tapering, this line part roughly the same on whole bearing of trend with the shape in the cross section that bearing of trend intersects vertically.
Second technical scheme of the present invention is, in described interdental brush, the Co alloy that described wire rod is 30 ~ 60 quality % by Co content is formed.
3rd technical scheme of the present invention is, described interdental brush, and the entire length of described nozzle body is the scope of 1.0 ~ 8.0mm.
4th technical scheme of the present invention is, in described interdental brush, the length in described tapering is the scope of 0.5 ~ 5.0mm.
5th technical scheme of the present invention is, in described interdental brush, the length of described line part is the scope of 0.5 ~ 3.0mm.
6th technical scheme of the present invention is, in described interdental brush, the diameter of described nozzle body is the scope of 0.5 ~ 5.0mm.
Invention effect:
Interdental brush of the present invention, the durability of wire rod is enough large, even if access times increase, wire rod is also difficult to fracture, and when can prevent broken wires, brush body remains between cog.
In addition, when the Co alloy that wire rod is 30 ~ 60 quality % by Co content is formed, effect of the present invention can be played especially.
Accompanying drawing explanation
Fig. 1 is the side view of the major part representing interdental brush one embodiment of the present invention.
Fig. 2 is the side view of the state that the brush body of the interdental brush representing pie graph 1 bends.
Fig. 3 is the side view of the major part of the another embodiment representing interdental brush of the present invention.
Fig. 4 be represent the side in tapering tilt at a certain angle after the side view of interdental brush major part of comparative example 1 ~ 4.
Fig. 5 is the side view of the state that the brush body of the interdental brush representing pie graph 4 bends.
Symbol description:
1,2 interdental brushs
10 handle bodies
11 top end faces
20 nozzle body
20a, 20c tapering
21,24 sides
22,23 end faces
20b, 20e line part
30 brush bodies
31 wire rods
31a cardinal extremity
32 filamentous
Detailed description of the invention
One embodiment of interdental brush of the present invention is described.
Fig. 1 represents the side view of the interdental brush major part of present embodiment example.This interdental brush 1 has: the handle body 10 gripped during use; Projecting nozzle body 20 on the top of handle body 10; And the brush body 30 be arranged in handle body 10 and nozzle body 20.
As long as handle body 10 by the shape of finger grip, and can be not particularly limited, such as cylindric, flat column (triangle column, cubic column etc.) and so on can be there are.In addition, handle body 10 may also be the shape after bending or bending, to improve the operability of interdental brush 1.In addition, handle body 10 also can be configured to: have: grip part; And be configured in than grip part more top, neck along with the taper attenuated towards top, and be provided with nozzle body 20 on the top of neck.
In addition, grip in order to improve, also can be formed concavo-convex on the surface of handle body 10, also can have the slip-proofing device such as natural rubber, synthetic rubber the surface-coated of handle body 10.
As the material of handle body 10, such as, can use soft resin, polystyrene (PS), Merlon (PC), the ABS resins etc. such as polypropylene, polyethylene, ethylene-alpha-olefin copolymer, thermoplastic elastomer (TPE) (such as polyolefin elastomer, polyethylene-based elastomer, polyester-based elastomer).
The nozzle body 20 of present embodiment is made up of tapering 20a and line part 20b, can follow the action of brush body 30 and bend.
The tapering 20a of present embodiment is coated to wire rod 31 near handle body 10 around, and this tapering 20a is coniform, and its diameter attenuates along with diminishing gradually to top.In addition, the side 21 of tapering 20a forms concavity curved surface from top to cardinal extremity, and the end face 22 of handle body 10 side of tapering 20a is the shape identical with the top end face 11 of handle body 10.
From the stress dispersion effect improving wire rod 31 further, the side 21 of tapering 20a is preferably formed with curvature and becomes large concavity curved surface gradually from the top of tapering 20a to proximal direction.In addition, the curvature of described concavity curved surface represents by radius of curvature (R).
In addition, the concavity curved surface in tapering also can be made up of the concavity curved surface of more than two.
In this manual, the top in tapering refers to that the end of the line part side in described tapering, the cardinal extremity in tapering refer to the end on the handle side in described tapering.
In addition, " shape " in this description is not only finger-type shape, but also comprises the concept of size.Therefore, so-called shape is identical, then finger-type shape and size are all identical.
As soft resin, such as polypropylene, polyethylene, low density polyethylene (LDPE), ethylene-alpha-olefin copolymer, polyolefin elastomer, polystyrene based elastomers and polyester-based elastomer etc. can be there are.
From the viewpoint that conveniently can manufacture interdental brush, the material of tapering 20a is preferably identical with the material of handle body 10.
The line part 20b of present embodiment is extended on the top of tapering 20a, is the column roughly the same on whole bearing of trend of diameter.
The material of line part 20b can use the material identical with tapering 20a.
The size of nozzle body 20, considers the size of interdental brush 1, then its entire length is preferably the scope of 1.0 ~ 8.0mm, and 1.0 ~ 6.0mm is better, and 3.0 ~ 4.0mm is good especially.The length of tapering 20a is preferably 0.5 ~ 5.0mm, and 1.5 ~ 3.0mm is better, and the length of line part 20b is preferably 0.5 ~ 3.0mm, and 1.5 ~ 2.0mm is better.
If the entire length of nozzle body 20 is more than 1.0mm, tapering 20a and line part 20b is more than 0.5mm, then the stress of wire rod 31 concentrates dispersion effect to improve further, and the making of nozzle body 20 becomes easy in addition.If the entire length of nozzle body 20 is below 8.0mm, tapering 20a is below 5.0mm, line part 20b is below 3.0mm, then in oral cavity, operability (especially intraoral inner portion) uprises.
In addition, the diameter of nozzle body 20 is preferably the scope of 0.5 ~ 5.0mm, and the scope of 0.7 ~ 3.5mm is better.In the 20a of tapering, concentrate dispersion effect from the stress improving wire rod 31 further, the diameter of the end face 22 of handle body 10 side is preferably 1.1 ~ 10 times of the end face 23 of line part 20b side.In addition, the diameter of the end face 23 of the line part 20b side of tapering 20a is preferably 0.5 ~ 1.0mm.If diameter more than the 0.5mm of the end face 23 of the line part 20b side of tapering 20a then easily makes tapering 20a, if the stress dispersion effect of below 1.0mm then wire rod 31 just uprises further.
In addition, concentrate dispersion effect from the stress uprising wire rod 31 further, the diameter of line part 20b is that less than 5.0 times of the diameter of wire rod 31 are better.
When the diameter of nozzle body 20 is scopes of 0.5 ~ 5.0mm, the beeline of 21 to wire rod 31 is preferably in the scope of 0.01 ~ 2.3mm from the side.
Brush body 30 has wire rod 31 and is located at the Clean-filamentous 32 of between cog on wire rod 31.
In the present embodiment, wires one folding is that turn back in two ground, helical form twisted forms by wire rod 31, and return portion is divided and is located on top, and cardinal extremity 31a side is inserted into nozzle body 20 and handle body 10.
The intubating length on handle body 10 of wire rod 31 is preferably 0.1 ~ 10.0mm, and 1.0 ~ 4.0mm is better.If the intubating length of wire rod 31 is more than 0.1mm, then can reliably wire rod 31 be fixed on handle body 10, also makes the stress dispersion of wire rod 31 uprise further.But if more than 10.0mm, then the raising of the stress dispersion of the stationarity of wire rod 31 on handle body 10, wire rod 31 just reaches capacity, and is unhelpful.
Wire rod 31, the length of part exposed from the tip side of nozzle body 20 is preferably 5 ~ 20mm, 6 ~ 15mm is better.If wire rod 31, length more than the 5mm of part that exposes from the tip side of nozzle body 20, then become more easy cleaning between cog, if below 20mm, then operability time clean is excellent.
The material of wire rod 31 without particular limitation of, such as have austenite stainless steel, martensitic stainless steel, ferrite-group stainless steel, Co content to be the Co alloy etc. of 30 ~ 60 quality %.In the middle of these, from the view point of more playing the effect using the nozzle body 20 be made up of tapering 20a and line part 20b, the durability improving wire rod 31 further, preferably Co content is the Co alloy of 30 ~ 60 quality %.
In described Co alloy, if more than Co content 30 quality %, then bending strength, repeated bending fatigue characteristic become higher, if below 60 quality %, then wire rod reverses and adds man-hour wire rod 31 and be difficult to fracture.
As Co alloy, in Co, preferably add the elements such as Cr, Ni, Mo, C, Mn, Si, W, Fe, Ti of necessary amount.Specifically, Co-Cr-Ni system alloy, Co-Cr-Mo system alloy, Co-Cr-W-Ni system alloy, Co-Ni-Cr-Mo system alloy and Co-Ni-Cr-Mo-W-Fe system alloy etc. can be exemplified.In addition, in Co-Cr-Ni system alloy, preferably containing the Cr of 20 ~ 23 quality %, the Ni of 15 ~ 18 quality %.In addition, in Co-Cr-Mo system alloy, preferably containing the Cr of 27 ~ 30 quality %, the Mo of 5.0 ~ 7.0 quality %, other also can contain the Ni of below 2.5 quality %, the Fe of below 7.5 quality % as required.
In Co-Cr-W-Ni system alloy, Cr, N9.0 preferably containing 19 ~ 21 quality % ~ Ni of 11.0 quality %, W of 14 ~ 16 quality %, other also can contain Fe, the Mn containing below 2.0 quality %, the Si containing 1.0 quality % of below 3 quality % as required.
In Co-Ni-Cr-Mo system alloy, Cr, the Ni of 33 ~ 37 quality %, the Mo of 9.0 ~ 10.5 quality % preferably containing 19 ~ 21 quality %, as required, also can contain the Fe of 1 quality %, the Ti of 1 quality %.
In Co-Ni-Cr-Mo-W-Fe system alloy, Cr, the Ni of 15 ~ 25 quality % preferably containing 18 ~ 22 quality %, the Mo of 3 ~ 4 quality %, the W of 3 ~ 4 quality %, the Fe of 4 ~ 6 quality %, as required, Mn, the Ti of 0.5 ~ 3.5 quality %, the Si of below 0.5 quality % of below 1 quality % can also be contained.
In addition, as Co alloy, can use SPRON100 (titles of the commodity that Seiko electronics (strain) (Japanese: セ イ コ ー イ Application ス Star Le (strain)) is made), it has following formation: the Mo of the Ni respectively containing the Co of 30 ~ 45 quality %, 10 ~ 20 quality %, the Cr of 8 ~ 15 quality %, 3 ~ 12 quality %, the C of 0.08%, the P of 0.045 quality %, the S of 0.03 quality %, remainder are Fe.
In addition, can use SPRON500 (titles of the commodity that Seiko electronics (strain) (Japanese: セ イ コ ー イ Application ス Star Le (strain)) is made), it has following formation: the Co respectively containing 25 ~ 45 quality %, the Cr of 12 ~ 25 quality %, the Mo of 8 ~ 15 quality %, remainder are Ni.
In addition, can use NAS604PH (titles of the commodity that Japanese smart line (strain) is made), it has following formation: Co, the Ni of 15 ~ 17.5 quality % respectively containing more than 40 quality %, the Cr of 20.5 ~ 22.5 quality %, the Mo of 5.8 ~ 8.3 quality %, remainder are Fe.
The thickness of wire rod 31, such as, suitably select in the scope of 0.18 ~ 0.40mm, but the diameter of wire rod 31 is thinner, more easily fractures, and therefore effect of the present invention is played extraordinarily.In addition, in the product of interdental brush 1, the thickness according to wire rod 31 carries out size classes.As the mark of size, the mark using SSSS (4S), SSS (3S), SS (2S), S, M, L etc. or 1 ~ 6 symbol and numeral can be there are.
The length being provided with the part of filamentous 32 of wire rod 31 considers that the shape etc. of the between cog that namely purposes of interdental brush 1 supposes suitably is selected, such as, elect 5 ~ 15mm as.
Filamentous 32 clamps by being twisted into spiral helicine wire rod 31, and each filamentous 32 is installed into axle centered by wire rod 31 and radially extends.If filamentous 32 is mounted to radial relative to wire rod 31, then make filamentous 32 easily contact tooth when brush body 30 is inserted between cog, the removal of tartar uprises.
The length of filamentous 32, from the view point of the insertion insertion of between cog and the removal of tartar, is preferably 1.0 ~ 7.0mm.In addition, in the present embodiment, filamentous 32 is made shorter in tip side, longer at base end side, to improve the insertion between cog further.
As the material of filamentous 32, such as, there are the thermoplastic resins etc. such as polyamide (nylon), polybutylene terephthalate (PBT) (PBT), polypropylene, PTT (PTT).
When using above-mentioned interdental brush 1 pair of between cog to carry out clean, gripping handle body 10, by the direction of the top of brush body 30 towards between cog, inserts brush body 30 near between cog.Further, motion interdental brush 1 moves back and forth between cog to make brush body 30, cleans between cog.
Now, especially when being withdrawn into outside mouth by brush body 30, wire rod 31 bends sometimes.
In interdental brush 1, as shown in Figure 2, when wire rod 31 bends, the nozzle body 20 around it also bends together with wire rod 31.Here, because the side 21 of the tapering 20a of nozzle body 20 is formed with concavity curved surface from top to cardinal extremity, therefore easily bend gradually to described tip side.Adopt such tapering 20a, owing to suppressing sharply bending of wire rod 31, therefore the stress that wire rod 31 can be made to produce fully disperses.
In addition, in the present embodiment, be provided with line part 20b owing to extending on the top of tapering 20a, therefore the stress dispersion that wire rod 31 produces can be made further.Therefore, the durability of wire rod 31 fully uprises, even if access times increase, wire rod 31 is also difficult to fracture.
In addition, when the stress disperseing wire rod 31 to produce when being had the nozzle body 20 of tapering 20a and line part 20b by use, the fracture of wire rod 31 can be made to produce in the inside of nozzle body 20.Therefore, as shown in Figure 3, owing to the cardinal extremity 31a of wire rod 31 can also be made in nozzle body 20 side of handle body 10 top ends 11, therefore the action of brush body 30 can be become more soft action, the raising of the durability of wire rod 31 can be expected.In addition, can also expect be shaped produce the raising of outward appearance, the minimizing of cost.The cardinal extremity 31a of wire rod 31 is preferably at least located between end face 23 and top ends 11.Even if if it is also in the inside of nozzle body 20 that wire rod 31 produces fracture, then brush body 30 would not be separated, can take out with nozzle body 20 one.
In addition, as shown in Figure 4, the side 24 of tapering 20c from the interdental brush 2 beyond the scope of the present invention that its top to cardinal extremity tilts at a certain angle, as shown in Figure 5, when bent wire 31, tapering 20c bends hardly, not the action of and then brush body 30.Therefore, in the 20c of tapering, lack the effect of dispersive stress, produce stress nozzle body 20 slightly leaning on the exposed division P wire rod 31 of the tip side of wire rod 31 sharply bending and concentrate.Therefore, wire rod 31 becomes easily fracture and wire rod durability is insufficient, and in addition, the exposed division P place of wire rod 31 produces the probability ruptured and uprises, and can not prevent brush body 30 the remaining between cog when broken wires.
The present invention is not limited to above-mentioned embodiment.Such as, in the present invention, tapering 20a is not coniform yet, and line part 20b is not cylindric yet.Such as, the cross sectional shape of tapering 20a may also be oval, triangle and more than triangle edges number polygon-shaped, hammer shapes in starriness etc.The cross sectional shape of line part 20b decides according to tapering 20a.
In addition, the length of filamentous 32 need not be made shorter in tip side, longer at base end side, both can be certain, also can be tip side is done long, do at base end side short.
Embodiment:
Embodiment 1:
Interdental brush as embodiment 1 is made by utilizing the insertion of ejection formation to be shaped, and it has handle body 10, nozzle body 20 and brush body 30 as shown in Figure 1, and nozzle body 20 comprises the tapering 20a and line part 20b that side is the polypropylene of concavity curved surface.
In addition, the diameter of the end face 22 of the entire length of nozzle body 20, handle body 10 side of tapering 20a and the diameter of line part 20b is as shown in table 1 makes like that.In addition, as handle body 10, it is the cylinder of polypropylene.As the wire rod 31 of brush body 30, employ high strength Co base alloy wire rod (Japanese smart line (strain) system of diameter 0.20mm (size: 4S), NAS604PH, Co for more than 40 quality %, Ni for 15 ~ 17.5 quality %, Cr for 20.5 ~ 22.5 quality %, Mo be 5.8 ~ 8.3 quality %, remainder is Fe) the wire rod of twisted of turning back.As filamentous 32, employ 6 of diameter 0.051mm, 12-nylon fiber.The length that wire rod 31 is provided with the part of filamentous 32 makes 10mm, and the length not arranging the part of filamentous 32 makes 1.0mm.
Embodiment 2:
As wire rod 31, the high strength Co base alloy wire rod of diameter 0.23mm (size: 3S) (Japanese smart line (strain) system is used except replacing the high strength Co base alloy wire rod of diameter 0.20mm (size: 4S), NAS604PH) turn back outside the wire rod of twisted, other makes identical with embodiment 1, obtains interdental brush.
Embodiment 3:
As wire rod 31, the general STAINLESS STEEL WIRE of diameter 0.20mm (size: 4S) (Japanese smart line (strain) system is used except replacing the high strength Co base alloy wire rod of diameter 0.20mm (size: 4S), NAS106N, Ni for 10 quality %, Cr for 22 quality %, Mo for 2 quality %, Mn for 5.9 quality %, C for 0.015 quality %, N be 0.40 quality %, remainder is Fe) turn back outside the wire rod of twisted, other makes identical with embodiment 1, obtains interdental brush.
Embodiment 4:
As wire rod 31, the general STAINLESS STEEL WIRE of diameter 0.23mm (size: 3S) (Japanese smart line (strain) system is used except replacing the general STAINLESS STEEL WIRE of diameter 0.20mm (size: 4S), NAS106N) turn back outside the wire rod of twisted, other makes identical with embodiment 3, obtains interdental brush.
Comparative example 1:
As the interdental brush of comparative example 1, be shaped by utilizing the insertion of ejection formation and make, it has handle body 10, nozzle body 20 and brush body 30, and nozzle body comprises the tapering 20c that line part 20b and side 24 tilt at a certain angle as shown in Figure 4.
In addition, the size of nozzle body 20 is as shown in table 1 makes like that.As handle body 10 and brush body 30, make the structure identical with embodiment 1.As the wire rod 31 of brush body 30, employ the high strength Co base alloy wire rod (Japanese smart line (strain) system, NAS604PH) of diameter 0.20mm (size: 4S) the wire rod of twisted of turning back.
Comparative example 2:
As wire rod 31, the high strength Co base alloy wire rod of diameter 0.23mm (size: 3S) (Japanese smart line (strain) system is used except replacing the high strength Co base alloy wire rod of diameter 0.20mm (size: 4S), NAS604PH) turn back outside the wire rod of twisted, other makes identical with comparative example 1, obtains interdental brush.
Comparative example 3:
As the interdental brush of comparative example 2, be shaped by utilizing the insertion of ejection formation and make, it has handle body 10, nozzle body 20 and brush body 30, and nozzle body comprises the tapering 20c that line part 20b and side 24 tilt at a certain angle as shown in Figure 4.
In addition, the size of nozzle body 20 is as shown in table 1 makes like that.As handle body 10 and brush body 30, make identical with embodiment 1.As the wire rod 31 of brush body 30, use the general STAINLESS STEEL WIRE (Japanese smart line (strain) system, NAS106N) of diameter 0.20mm (size: 4S) the wire rod of twisted of turning back.
Comparative example 4:
As wire rod 31, the general STAINLESS STEEL WIRE of diameter 0.23mm (size: 3S) (Japanese smart line (strain) system is used except replacing the general STAINLESS STEEL WIRE of diameter 0.20mm (size: 4S), NAS106N) turn back outside the wire rod of twisted, other makes identical with comparative example 3, obtains interdental brush.
The wire rod durability of each interdental brush of Evaluation operation example 1 ~ 6, comparative example 1 ~ 4 is carried out by following repeated bending fatigue test.
Repeated bending fatigue test:
First, the handle body 10 of interdental brush 1 is fixed on chuck, the hammer of the load 100g that hung down on the top of wire rod 31 by fine rule.In this condition, wire rod 31 is carried out repeating upset with 90 ° (adding up to 180 °) with the speed of 30 beats/min to the left and right respectively.Thus, determine until the reversion number of times that ruptures because of tired of wire rod.In addition, its fracture position is confirmed by visual.Result represents in Table 1.
In the interdental brush employing by side the embodiment 1 ~ 4 being the nozzle body that the tapering of concavity curved surface and line part are formed, until the reversion number of times of broken wires is more, wire rod excellent in te pins of durability.In addition, broken wires position is in the inside of nozzle body.
Relatively, in the interdental brush of comparative example 1 ~ 4 employing the nozzle body that the tapering that tilted at a certain angle by side and line part are formed, until the reversion number of times of broken wires is less, wire rod durability is insufficient.Broken wires position is slightly by the part exposed of tip side compared to nozzle body.
In addition, be embodiment 1 and comparative example 1, embodiment 2 and the comparative example 2 of high strength Co base alloy wire rod for wire rod, if compare the number of occurrence, then the number of occurrence of embodiment 1 is 6.2 times of comparative example 1, and the number of occurrence of embodiment 2 is 3.2 times of comparative example 2.
On the other hand, be embodiment 3 and comparative example 3, embodiment 4 and the comparative example 4 of general STAINLESS STEEL WIRE for wire rod, if compare the number of occurrence, then the number of occurrence of embodiment 3 is 4.7 times of comparative example 3, and the number of occurrence of embodiment 4 is 2.4 times of comparative example 4.
From these results, if use high strength Co base alloy wire rod, then durability improves.In addition, known, the situation of concavity curved surface is made in the side employing tapering as nozzle body, and compared with the situation that itself and the side employing tapering as nozzle body tilt at a certain angle, it is very large that durability improves effect.It can thus be appreciated that, if by high strength Co base alloy wire rod, with made the nozzle body that the tapering of concavity curved surface and line part form by side and combined, then cumulative effects is played for raising wire rod endurance quality.
Industry utilizes possibility:
The durability of the wire rod of interdental brush of the present invention fully improves, and is also difficult to fracture even if access times become multi-thread material, and when can prevent broken wires, brush body remains between cog.In addition, when the Co alloy that wire rod is 30 ~ 60 quality % by Co content is formed, effect of the present invention is played extraordinarily.
Claims (6)
1. an interdental brush, is characterized in that, has: handle body; Nozzle body, this nozzle body is projecting on described handle body; And brush body, this brush body is inserted on the wire rod of described nozzle body at cardinal extremity and is provided with filamentous,
Described nozzle body has tapering and line part,
Described nozzle body is deflection along with the action of described brush body,
Described tapering is tapered towards its top, and the formation of the side in described tapering becomes large concavity curved surface from described top to cardinal extremity curvature,
Described line part is extended on the top in described tapering, this line part roughly the same on whole bearing of trend with the shape in the cross section that bearing of trend intersects vertically, and the diameter of this line part is less than 5.0 times of the diameter of described wire rod.
2. interdental brush as claimed in claim 1, it is characterized in that, the Co alloy that described wire rod is 30 ~ 60 quality % by Co content is formed.
3. interdental brush as claimed in claim 1, it is characterized in that, the entire length of described nozzle body is the scope of 1.0 ~ 8.0mm.
4. interdental brush as claimed in claim 1, it is characterized in that, the length in described tapering is the scope of 0.5 ~ 5.0mm.
5. interdental brush as claimed in claim 1, it is characterized in that, the length of described line part is the scope of 0.5 ~ 3.0mm.
6. interdental brush as claimed in claim 1, it is characterized in that, the diameter of described nozzle body is the scope of 0.5 ~ 5.0mm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-166043 | 2010-07-23 | ||
| JP2010166043 | 2010-07-23 | ||
| PCT/JP2011/066710 WO2012011574A1 (en) | 2010-07-23 | 2011-07-22 | Interdental brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103025198A CN103025198A (en) | 2013-04-03 |
| CN103025198B true CN103025198B (en) | 2016-02-03 |
Family
ID=45496991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180035638.3A Active CN103025198B (en) | 2010-07-23 | 2011-07-22 | Interdental brush |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP5439599B2 (en) |
| KR (1) | KR101786154B1 (en) |
| CN (1) | CN103025198B (en) |
| MY (1) | MY160931A (en) |
| TW (1) | TWI542330B (en) |
| WO (1) | WO2012011574A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2528886B (en) * | 2014-08-01 | 2019-04-03 | Wisdom Toothbrushes Ltd | Flexible interdental cleaning device |
| JPWO2016167191A1 (en) * | 2015-04-16 | 2018-02-08 | ライオン株式会社 | Interdental brush |
| JP7385272B2 (en) * | 2020-05-11 | 2023-11-22 | ヤマトエスロン株式会社 | interdental brush |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2171296A (en) * | 1985-02-21 | 1986-08-28 | Butler John O Co | Interdental toothbrush |
| JP2005224268A (en) * | 2004-02-10 | 2005-08-25 | Lion Corp | Interdental brush |
| JP3139296U (en) * | 2007-11-27 | 2008-02-07 | ライオン株式会社 | Interdental brush |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0462130U (en) * | 1990-10-11 | 1992-05-28 | ||
| JPH0956471A (en) * | 1995-08-22 | 1997-03-04 | Tarusawa Takemitsu | Toothbrush for part between teeth |
| JPH10248639A (en) * | 1997-03-13 | 1998-09-22 | Taihei Kogyo Kk | Interdentium brush |
| JP2001204549A (en) | 2000-01-25 | 2001-07-31 | Lion Corp | Interdental brush |
| US20040121284A1 (en) * | 2002-12-19 | 2004-06-24 | Welter's Co., Ltd. | Head brush for a dental fissure cleaning device |
| JP2005176906A (en) | 2003-12-16 | 2005-07-07 | Soogo Intekku Kk | Small brush with handle, such as interdental brush |
| EP1862090B1 (en) * | 2006-05-30 | 2009-02-11 | Tepe Munhygienprodukter Ab | Interdental brush |
| JP5338232B2 (en) | 2008-09-30 | 2013-11-13 | サンスター株式会社 | Interdental brush |
-
2011
- 2011-07-22 WO PCT/JP2011/066710 patent/WO2012011574A1/en active Application Filing
- 2011-07-22 MY MYPI2013000231A patent/MY160931A/en unknown
- 2011-07-22 JP JP2012525450A patent/JP5439599B2/en active Active
- 2011-07-22 CN CN201180035638.3A patent/CN103025198B/en active Active
- 2011-07-22 TW TW100126116A patent/TWI542330B/en not_active IP Right Cessation
- 2011-07-22 KR KR1020137001807A patent/KR101786154B1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2171296A (en) * | 1985-02-21 | 1986-08-28 | Butler John O Co | Interdental toothbrush |
| JP2005224268A (en) * | 2004-02-10 | 2005-08-25 | Lion Corp | Interdental brush |
| JP3139296U (en) * | 2007-11-27 | 2008-02-07 | ライオン株式会社 | Interdental brush |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI542330B (en) | 2016-07-21 |
| JPWO2012011574A1 (en) | 2013-09-09 |
| KR101786154B1 (en) | 2017-10-17 |
| CN103025198A (en) | 2013-04-03 |
| KR20130036051A (en) | 2013-04-09 |
| WO2012011574A1 (en) | 2012-01-26 |
| TW201210574A (en) | 2012-03-16 |
| MY160931A (en) | 2017-03-31 |
| JP5439599B2 (en) | 2014-03-12 |
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