CN1968621A - Tooth brush - Google Patents
Tooth brush Download PDFInfo
- Publication number
- CN1968621A CN1968621A CNA2005800193272A CN200580019327A CN1968621A CN 1968621 A CN1968621 A CN 1968621A CN A2005800193272 A CNA2005800193272 A CN A2005800193272A CN 200580019327 A CN200580019327 A CN 200580019327A CN 1968621 A CN1968621 A CN 1968621A
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- CN
- China
- Prior art keywords
- coating portion
- toothbrush
- handle part
- core portion
- handle
- 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.)
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Classifications
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- 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
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0085—Brushes provided with an identification, marking device or design
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- 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
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D3/00—Preparing, i.e. Manufacturing brush bodies
- A46D3/005—Preparing, i.e. Manufacturing brush bodies by moulding or casting a body around bristles or tufts of bristles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
- G09F23/0081—Advertising on or in specific articles, e.g. ashtrays, letter-boxes on sanitary articles, e.g. on cakes of soap
- G09F23/0082—Advertising on or in specific articles, e.g. ashtrays, letter-boxes on sanitary articles, e.g. on cakes of soap on tooth brushes
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/42—Brushes
- B29L2031/425—Toothbrush
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Brushes (AREA)
Abstract
A tooth brush capable of providing excellent fitting property when a holding part is grasped from any direction and excellent sliding prevention property in any direction of the holding part. The tooth brush comprises a head part (2) in which tufts (1) are implanted, a neck part (3), and the holding part (4). The holding part (4) further comprises a core part (5) formed of a hard resin material and a cover part (6) formed of a soft resin material put on the core part (5). The cover part (6) covers 70% or more of the surface of the holding part (5), and the coefficient of friction of the surface of the cover part (6) is one or higher.
Description
Technical field
It is good and be difficult for the toothbrush of the structure of sliding to the present invention relates to have the chirality of closing.
The application is willing to require priority 2004-177100 number based on the spy of application on June 15th, 2004, quotes its content at this.
Background technology
Usually, the handle portion of toothbrush is that the thermoplastic resin by hard constitutes, but has the problem of sliding, closing the chirality difference when gripping easily.For this reason, proposing has various toothbrushes with following structure,, coats the soft material that is made of thermoplastic elastomer (TPE) etc. on handle part that is, closes chirality and skid resistance thereby have concurrently when gripping.
From such technical background, example as current toothbrushes provides following toothbrush, its rear side at the handle handle part has elongated cavity and controls parts, be provided with at least one flange of additional rigidity in the inboard of controlling parts, wherein, this is controlled parts and is made of the thermoplastic elastomer material, can distortion (with reference to patent documentation 1) under the effect of finger.
Another example as toothbrush, provide the toothbrush that constitutes by hard material and soft material, wherein, form the face side of handle by hard material, form the back side and the side of handle by soft material, hard material portion does not contact with gum when brushing teeth, and can reach to prevent the injured purpose of gum (with reference to patent documentation 2).
Another example as toothbrush, also the axle of known hard and soft exterior component be by produced by insert molding and integrated toothbrush (with reference to patent documentation 3), and on the peripheral part of the grip part of a handle of hard resin system the injection moulding soft synthetic resin, by the toothbrush (with reference to patent documentation 4) of the whole peripheral surface of soft synthetic resin coating grip part.
In addition, example again as toothbrush, it is also known for following toothbrush, its handle portion is coated with the polyester based thermoplastic elastomer of rubber hardness in 55～95 scopes on the width two sides that by transparent saturated polyester are the handle chassis that forms of resin, designability and operability be improved (with reference to patent documentation 5).
Patent documentation 1: special table 2000-504609 communique
Patent documentation 2: open clear 59-123432 communique in fact
Patent documentation 3: the spy opens flat 2-71710 communique
Patent documentation 4: the spy opens the 2002-34659 communique
Patent documentation 5: the spy opens the 2003-265232 communique
Above-mentioned patent documentation 1 described toothbrush, though have soft feeling, but owing to only be provided with elastomeric material in handle handle part rear side, so following problems is arranged, promptly, during gripping handle close chirality and skid resistance is not enough, especially when the face of the opposition side of gripping handle rear side, close chirality and skid resistance is relatively poor.
Above-mentioned patent documentation 2 described toothbrushes, utilize soft material to form the rear side and the side of handle, thereby prevented the touching of hard resin portion and gum when brushing teeth, can prevent that gum is injured, but this soft material but is not to be purpose with close chirality or the skid resistance that improve handle.
In addition, in general, the usability when improving the brushing teeth of toothbrush makes and closes chirality or the good handle shape handle part of skid resistance is very important.Thereby, adopt the core of hard and soft clad material to constitute the handle part of handle shape, and use elastomer resin usually as soft clad material.Yet, under the little situation of the lower situation of the coefficient of friction of elastomer resin or the coating area of handle part, have the poor problem of skid resistance of handle part.And then, under the harder situation or the situation of the clad material thinner thickness of handle part of the hardness of elastomer resin, there is the not good problem of chirality of closing of toothbrush.
The present inventor's purpose is, in order to solve above-mentioned problem, provide a kind of when any direction grips handle part to close chirality all fine and with respect to any direction skid resistance of handle part good toothbrush all.In addition, the present invention also aims to provide a kind of and close that chirality is good, skid resistance good and coating portion is difficult for dirty toothbrush.
Summary of the invention
To achieve these goals, toothbrush of the present invention has following formation.
Toothbrush of the present invention is characterised in that, possess the head that plants pieces, neck, and handle part, the coating portion that described handle part comprises the core portion that is made of the hard resin material and is coated in contact on the core portion side face with this core portion and is made of the resin material softer than core portion matter, described coating portion covers more than 70% of described handle part surface, and the coefficient of friction on the surface of described coating portion is more than 1.
Toothbrush of the present invention is characterised in that, described core portion is formed by thermoplastic resin, and described coating portion is formed by elastomer resin, and the rubber hardness of described coating portion is 15～40, and the thickness of described coating portion is 2～5mm.
Toothbrush of the present invention is characterised in that, near the rear end side of near rear side the described neck side end of described handle part and/or described handle part the face side of planting mao facing side and rear side, described handle part central authorities, be formed with respectively from described core portion to the side-prominent protuberance of foreign side, the total area that is exposed to outside part from described coating portion in these protuberances accounts for below 10% of area of described handle part.
Toothbrush of the present invention is characterised in that, described coating portion surface area implemented wrinkling processing more than 50%.
According to the present invention, the coating portion of soft resin material has covered more than 70% of handle part surface area, so, all has good gripability controlling toothbrush from any direction, and, because the coefficient of friction on coating portion surface is more than 1, so, can be provided at the toothbrush that is difficult for taking place slip under the situation of controlling.
In addition, toothbrush of the present invention forms core portion with thermoplastic resin, thereby can bring into play the rigidity of appropriateness when brushing teeth on the whole.And, by forming coating portion, can make to control to become easy with elastomer resin.
In addition, be made as at rubber hardness under 15～40 the situation, can further suppress the adhesion sense, be difficult for being stained with dirt coating portion, and, be improved with the fluid-tight engagement of core portion, further improved and closed chirality and skid resistance.
In addition, be made as at thickness under the situation of 2～5mm, can obtain more appropriate elastic sensation when gripping handle part, and,, can access the toothbrush of more easily controlling so it is thick can not become because the thickness of coating portion is not too thick with coating portion.
In addition, about being arranged on the protuberance in the core portion, be made as 10% when following at the total area of the part that will expose from coating portion, can cover core portion fully with coating portion, so, controlling under the situation of handle part, can make the contact area of core portion and hand enough little, can obtain higher skid resistance, easy operating more when brushing teeth.
In addition, under the situation of having implemented wrinkling processing more than 50%, can further suppress the peculiar adhesion sense of coating portion of elastomer resin, be easy to control, close the good toothbrush of chirality thereby can provide to coating portion surface.
According to the present invention, by be exposed to the protuberance on coating portion surface with the mode setting of separating in the face side of core portion and rear side, even there is the trend that is offset with respect to core portion in the coating portion that is made of the soft resin material, also can suppress it by protuberance, protuberance plays the effect that prevents the skew of coating portion.By length direction a plurality of protuberances are set, can effectively realize preventing the effect of coating portion skew along core portion front and back.
Description of drawings
Fig. 1 represents the toothbrush of first embodiment of the invention, and wherein Fig. 1 (A) is the front view of this toothbrush, and Fig. 1 (B) is the side view of this toothbrush, and Fig. 1 (C) is the cutaway view of this toothbrush, and Fig. 1 (D) is the upward view of this toothbrush.
Fig. 2 represents the part of the toothbrush of first embodiment of the invention, wherein Fig. 2 (A) is the front view of the part of this toothbrush, Fig. 2 (B) is the side view of the part of this toothbrush, and Fig. 2 (C) is the cutaway view of the part of this toothbrush, and Fig. 2 (D) is the upward view of the part of this toothbrush.
Fig. 3 represents the toothbrush of second embodiment of the invention, and wherein Fig. 3 (A) is the front view of this toothbrush, and Fig. 3 (B) is the side view of this toothbrush, and Fig. 3 (C) is the cutaway view of this toothbrush, and Fig. 3 (D) is the upward view of this toothbrush.
Fig. 4 represents the part of the toothbrush of second embodiment of the invention, wherein Fig. 4 (A) is the front view of the part of this toothbrush, Fig. 4 (B) is the side view of the part of this toothbrush, and Fig. 4 (C) is the cutaway view of the part of this toothbrush, and Fig. 4 (D) is the upward view of the part of this toothbrush.
Description of reference numerals
The A toothbrush
1 pieces
2 heads
3 necks
4 handle parts (handle portion)
5 core portions
5A, 5B, 5C, 5D protuberance
6 coating portions
The specific embodiment
Below, utilize accompanying drawing to describe with regard to embodiments of the present invention.
Fig. 1 and Fig. 2 show first embodiment of toothbrush of the present invention.The toothbrush A of first embodiment has: the head 2, neck 3, and the handle part 4 that plant pieces 1.Above-mentioned handle part 4 possesses core portion 5 and coating portion 6, and this core portion 5 is formed by the hard resin material, and this coating portion 6 is formed by the soft resin material, covers in contact on the roughly complete cycle of core portion 5 with core portion 5.Above-mentioned coating portion 6 has covered more than 70% of surface of above-mentioned handle part 4, and the coefficient of friction on the surface of above-mentioned coating portion 6 is more than 1.
Compare with above-mentioned head 2 and neck 3, shown in the cutaway view of the side view of Fig. 1 (B) and Fig. 1 (C) like that, handle part 4 forms thicklyer on its thickness direction, shown in the upward view of the vertical view of Fig. 1 (A) and Fig. 1 (D) like that, on the width of handle part 4, form broad.This is because coating portion 6 covers core portion 5 cause on every side of handle part 4.
In addition, neck 3 forms handle part 4 sides than the thick slightly shape of head 2 sides.
Like that, core portion 5 has so horizontal wide, promptly thick slightly than the thinnest part of neck 3 on its width, and is thinner slightly than the thickest part of neck 3 shown in the upward view of the vertical view of Fig. 2 (A) and Fig. 2 (D); Shown in the cutaway view of the side view of Fig. 2 (B) and Fig. 2 (C), like that, on its thickness direction, form with the thicker part of neck 3 and divide the same thickness.And like that, the mode bending of core portion 5 to protrude to upside slightly is so that grip easily shown in the side view of the cutaway view of Fig. 1 (C) or Fig. 2 (B).
Then, the rear side in above-mentioned core portion 5, the terminal part side central authorities near the part of neck 3 are formed with the protuberance 5A that looks up ovalize, also are formed with the protuberance 5B that looks up ovalize in the rearward end side central authorities of the rear side of core portion 5.In addition, the face side in above-mentioned core portion 5 is formed with the protuberance 5C that overlooks ovalize in its length direction central portion side, and in the rearward end side of the face side of core portion 5, the protuberance 5D that overlooks ovalize is formed on the position of raised part 5B correspondence.And, on the protuberance 5C and the part between the protuberance 5D of the face side of above-mentioned core portion 5, be formed with trade name and show a plurality of demonstration teat 5E with (sign embossment with).
Secondly, as Fig. 1 (A) to shown in Fig. 1 (D) like that, the outer side in above-mentioned core portion 5 on the arbitrary face of four faces around the core portion 5, all is formed with the coating portion 6 that is made of the soft resin material of encirclement core portion 5 with suitable thickness.This coating portion 6 forms the thickness of the degree of the side face that covers these teats 5A～5D in the mode of the upper surface of each teat 5A～5D of not covering above-mentioned core portion 5.
Above-mentioned head 2, neck 3 and core portion 5 are one-body molded by a mould by hard resin materials such as thermoplastic resins.As this hard resin material, for example can use acrylic resin or mylar, but consider aspects such as intensity, mouldability and cost, acrylic resin is the most preferred.
Above-mentioned coating portion 6 by the soft resin material by the one-body molded peripheral part of secondary mould in above-mentioned core portion 5.As this soft resin material, for example can use styrene series elastomer resin, olefin-based elastomer resin or polyester based elastomers resin etc., but consider flexibility, skid resistance and with the aspects such as cementability of core, optimization styrene based elastomers resin.
As above-mentioned styrene series elastomer resin, specifically, for example can use " THERMOLAST ", " ラ バ ロ Application ", Network ラ レ (strain) " the セ プ ト Application " of Mitsubishi Chemical's (strain), the reason of German KRAIBURG company to grind " the レ オ ス ト マ-" of PVC ニ Le (strain), " the Off テ Star Network " of Asahi Chemical Industry's (strain) etc.
The coefficient of friction of above-mentioned coating portion 6 (coefficient of friction with respect to aluminium or stainless metallic plate that records according to JIS K7125) is more than 1, more preferably 2 when above, can access the good handle portion of skid resistance.Under the situation of the coefficient of friction less than 1 of above-mentioned coating portion 6, can't obtain sufficient skid resistance when using toothbrush A to brush teeth.On the other hand, the coefficient of friction of coating portion 6 surpasses at 5 o'clock, the tendency of the adhesion sense grow when having gripping handle.
By coating more than 70% of surface area of above-mentioned handle part 4 with above-mentioned coating portion 6, more preferably more than 90%, can accessing the good handle part of skid resistance 4.Under 70% situation of not enough handle part 4 surface areas of the surface area of coating portion 6, when dominated by hand handle part 4, coating portion 6 is less with the contact area of hand, thereby can't obtain sufficient skid resistance when brushing teeth.
Above-mentioned coating portion 6 preferably by rubber hardness be 15～40 soft resin material, preferably the styrene series elastomer resin forms.In this case, above-mentioned handle part 4 has the good chirality of closing.Under the situation of the rubber hardness less than 15 of the clad material of above-mentioned coating portion 6, when gripping handle part 4, the adhesion sense of hand is strong, there is the tendency that is stained with dirt easily, and coating portion 6 is low with the cementability of core portion 5, the tendency that exists coating portion 6 to peel off from core portion 5 easily.On the other hand, surpass under 40 the situation at the rubber hardness of above-mentioned clad material, when gripping handle part 4, coating portion 6 is harder, and existence can not obtain well to close the tendency of chirality, and then the tendency that exists skid resistance to reduce.
For above-mentioned handle part 4, in order to obtain the good chirality of closing, the thickness of coating portion 6 is preferably the scope of 2～5mm.Under the situation of the not enough 2mm of thickness of above-mentioned coating portion 6, when gripping handle part 4, coating portion 6 feels harder, exists to close the bad tendency of chirality.And when above-mentioned coating portion 6 surpassed 5mm, handle part was thick excessively, existed to be difficult to tendency dominated by hand.
Among the above-mentioned toothbrush A, face side and rear side in core portion 5 are provided with the protuberance 5A～5D that is exposed to coating portion surface in the mode of separating amounting to four positions.These protuberances 5A～5D is arranged on a plurality of positions along the length direction of the front and back of core portion 5, so, even there is the trend that skew takes place with respect to core portion 5 in the coating portion 6 that is made of the soft resin material, also can suppress, can play preventing that coating portion 6 from the effect of skew taking place this skew.
The total area that raised part 5A～5D is exposed to outside part from above-mentioned coating portion 6 wishes to be limited in below 10% of surface area of above-mentioned handle part 4.The total area constraints of protuberance 5A～5D by will being exposed to outside part from above-mentioned coating portion 6 can further improve the skid resistance of handle part 4 at below 10% of surface area of above-mentioned handle part 4.
The hair side side of planting that protuberance 5B, the 5C of core, 5D expose near the rearward end side of above-mentioned handle part 4 top and bottom and handle part central authorities amounts to three places, and, core portion 5 exposed surface area 10% below of area constraints at handle part 4, thus, can obtain higher handle part skid resistance.
Above-mentioned coating portion 6 can be by adding organic in soft resin materials such as above-mentioned styrene series elastomer resin or inorganic pigment and the moulding of adequate colouration ground, perhaps, also can not add any material and with the Natural color moulding.Under situation with the Natural color moulding, can see the demonstration teat 5E of core portion 5 across coating portion 6 translucently, can obtain toothbrush A attractive in appearance.
The Thickness Design that needs to be coated on the lip-deep coating portion 6 that shows teat 5E becomes, and when watching the demonstration teat 5E of its inboard from the outside with naked eyes, recognizes that easily literal etc. shows the sign of teat 5E.For this reason, the thickness that preferably will show the coating portion 6 on the teat 5E part forms about 0.5～2.0mm.Here, if the not enough 0.5mm of the thickness of coating portion 6, then when carrying out moulding with mould, resin can not enter into the forming cavity (gap between the demonstration teat 5E of die face and one-shot forming product) of mould, thereby causes the bad danger of moulding bigger.On the other hand, the thickness of the coating portion 6 on showing teat 5E is 2mm when above, has the tendency that is difficult to show from the outside identification teat 5E.
When the core portion 5 of the toothbrush A of moulding said structure, general injection (mo(u)lding) machine and mould can be used as a mould and carry out moulding.In addition, under the situation with secondary mould molding coating portion 6, can use general injection (mo(u)lding) machine to carry out moulding, mould can use hot runner valve gate mode or pin gate mode, wherein preferably adopts hot runner valve gate mode.
The handle part 4 of above-mentioned toothbrush A in order to improve skid resistance, also can be provided with concavo-convex or rib on the surface of coating portion 6, also can implement wrinkling processing on the surface.
By wrinkling processing is implemented on the surface of coating portion 6, can further reduce the adherence of handle part 4 when using the high elastomer resin of coefficient of friction as the constituent material of coating portion 6.
Hope is to the above-mentioned wrinkling processing of enforcement more than 50% on the whole surface or the surface of coating portion 6 of coating portion 6.Implement under the situation of wrinkling processing the anti-adhesion weak effect that brings by wrinkling processing in part only to the less than 50% on coating portion 6 surfaces.Be under 15～40 the situation, to consider that from the aspect of adherence and mouldability the roughness of wrinkling processing is preferably the scope of Ra=10～200 μ m at the rubber hardness of clad material.When Ra less than 10 μ m, anti-adhesion weak effect, and when Ra surpasses 200 μ m, the tendency that exists shaping efficiency to reduce.
In toothbrush A, pieces 1 for example can adopt the synthetic resin hair as the hair that constitutes pieces.It is suitable with the sectional area of the following circular cross-section hair of diameter 0.102mm (4mil) that the sectional area of this synthetic resin hair can be set as.
In addition, the cross section of planting pore that plants above-mentioned hair can make the above circle of diameter 1.8mm, plants follicle population and can be made as more than 45%, and the hair filling rate can be made as 70～95%.
The preferred diameter of above-mentioned hair is the following synthetic resin hair of 0.152mm (6mil), and more preferably diameter is at 0.102～0.127mm (hair in 4～5mil) the scope.In addition, the different hair of hair diameter also capable of being combined for example makes up the hair of 4mil and 5mil and plants hair.
When using the diameter synthetic resin hair bigger to constitute pieces than 0.127mm (6mil), have to be not suitable as the tendency of soft periodontosis nursing with toothbrush, and also also low to the cleaning power of close gap.On the other hand, when using diameter to constitute pieces, make tactility soft, even and also can be in the higher tartar removal power of intraoral each corner performance with the more weak pressure of scrubbing owing to matter is soft as the synthetic resin hair below the 0.127mm (5mil).
The material of hair is so long as to be used for the synthetic resin of toothbrush just passable in the past, can use such polyester of the such polyamide of nylon, polybutylene terephthalate (PBT), PETG, PTT or polypropylene etc.These resins can be used alone, but also also mix together.In order to suppress cost, adopt the synthetic resin hair of nylon etc., and each pieces is made of the hair of single diameter and gets final product.
The toothbrush A of said structure has good chirality and the skid resistance of closing, and is easy to grip, and usability is good.
Fig. 3 and Fig. 4 show second embodiment of toothbrush of the present invention.The toothbrush B of second embodiment has: plant head 2, neck 3 and the handle part 4 of pieces 1, above-mentioned handle part 4 possesses core portion 5 and coating portion 6, and this core portion 5 is formed by the hard resin material; This coating portion 6 is formed by the soft resin material, cover in contact on the roughly complete cycle of core portion 5 with core portion 5, above-mentioned coating portion 6 has covered more than 70% of surface of above-mentioned handle part 4, the coefficient of friction on the surface of above-mentioned coating portion 6 is more than 1, except following aspect, has toothbrush A identical construction with first embodiment.
Toothbrush A goes up the protuberance 5A, the 5C that are provided with and has been omitted in toothbrush B, and shown in Fig. 3 (C), the part of former formation protuberance 5A, 5C is covered with by coating portion 6.
In addition, shown in Fig. 3 (A), like that, in toothbrush B, replace toothbrush A to go up the demonstration teat 5E that forms, and be formed with the high slightly demonstration teat 5E of height that trade name shows usefulness
2, this shows teat 5E
2Terminal part be exposed to the face side of coating portion 6, carry out visual identification easily.
Above-mentioned some structure in addition of the toothbrush B of this second embodiment is identical with the toothbrush A of above-mentioned first embodiment, therefore, can obtain the effect identical with the toothbrush A of above-mentioned first embodiment.
Embodiment
In a mould, inject acrylic resin, mold the one-shot forming body that the core portion by head, neck and the handle part continuous with it of structure as shown in Figure 2 constitutes.Then, will be loaded in the secondary mould, and mold by color at the core portion outer circumferential side of one-shot forming body and be different from coating portion that the styrene series elastomer resin of one-shot forming body constitutes and integrated with formed in mould one-shot forming body once.Then, plant at head synthetic resin yarn is set, obtain the toothbrush of each embodiment and comparative example.
As above-mentioned styrene series elastomer resin, using rubber hardness is 20 resin " the THERMOLAST K " of company (German KRAIBURG).In addition, the thickness setting of the coating portion that this clad material of moulding is formed is 3mm.In addition, the coefficient of friction on coating portion surface is made as 0.5,1.0 and 2.0 3 kind, the ratio that coating portion surface area is accounted for the handle part surface area is set at 50%, 70% and 90% 3 kind, thereby produces the toothbrush sample of embodiment 1～3 and comparative example 1～4.
Test example 1
For the sample of embodiment 1～3 and comparative example 1～4, test at actual skid resistance when being held in the hand.Its result is shown in following table 1.
The condition of above-mentioned test and evaluation method and standard are as follows.
The gripping mode: palm grips
Evaluation method: sensory evaluation
Evaluation criterion: A: when brushing teeth, handle is very difficult to slide
B: when brushing teeth, handle is difficult to slide
C: when brushing teeth, handle slides slightly easily
D: when brushing teeth, handle slides easily
[table 1]
| | | | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | ||
| Coating portion | Coefficient of friction | 2.0 | 1.0 | 1.0 | 1.0 | 0.5 | 0.5 | 0.5 |
| Surface area | 90％ | 90％ | 70％ | 50％ | 90％ | 70％ | 50％ | |
| Skid resistance | A | B | B | C | C | C | D | |
From the result shown in the table 1 as can be seen, at coefficient of friction be (more than the value suitable) more than 1, more preferably 2 when above, can make the good handle of skid resistance with the coefficient of friction 1 that records according to JISK7125 with respect to aluminium or stainless steel metal plate as the coating portion of the handle part of handle portion.In addition, also can judge, under the situation of coefficient of friction less than 1, can't obtain enough skid resistances when brushing teeth.
And, also can recognize, by with more than 70% of surface area of handle handle part, usefulness styrene series elastomer resin-coating moulding more than 90% more preferably, can make the good handle part of skid resistance.In addition, if the coating portion surface area ratio less than 70% shared with respect to the handle part surface area, then the contact area of coating portion and hand is little when controlling handle part, so can not obtain enough skid resistances when brushing teeth.
Can judge by these result of the tests, the enough skid resistances in order to obtain to brush teeth, need the surface area of handle part cover the clad material of styrene series elastomer resin more than 70%, and its coefficient of friction need be set in more than 1.0.
Then, coating portion surface area is set at 90% with respect to the ratio of handle part surface area, with the rubber hardness of employed styrene series elastomer resin be set at 15,40,60 3 kind (セ プ ト Application CJ103 of Network ラ レ (strain) ", " セ プ ト Application CJ102 ", " セ プ ト Application CJ002 "); with the thickness of coating portion be made as 1,2, three kinds of 3mm, thereby produce the toothbrush sample of embodiment 4～7 and comparative example 5～8.
Test example 2
For the sample of embodiment 4～7 and comparative example 5～8, the chirality of closing when gripping at reality is tested.Its result is shown in following table 2.
The condition of above-mentioned test and evaluation method and standard are as follows.
The gripping mode: palm grips
Evaluation method: sensory evaluation
Evaluation criterion: A: the handle handle part closes hand very much
B: the handle handle part closes hand
C: the handle handle part less closes hand
D: the handle handle part does not conform to hand at all
[table 2]
| | | Comparative example 5 | | Embodiment 7 | Comparative example 6 | Comparative example 7 | Comparative example 8 | ||
| Clad material | Rubber hardness | 15 | 15 | 15 | 40 | 40 | 40 | 60 | 40 |
| | 3 | 2 | 1 | 3 | 2 | 1 | 3 | 6 | |
| Close chirality | A | B | C | B | B | D | D | C | |
According to the result shown in the table 2 as can be known, as the chirality of closing of the handle part of handle portion, be to show as good at 15～40 o'clock at rubber hardness as the polystyrene elastic resin of clad material.When rubber hardness less than 15, when grip handle part the adhesion sense of hand stronger, be stained with dirt easily, and, have the low and tendency peeled off easily of cementability with core.In addition, under rubber hardness was situation more than 40, when gripping handle part, coating portion was harder, can not get closing the sensation of hand, but also the tendency that exists skid resistance also to reduce.
In addition, as the chirality of closing of the handle part of handle portion, comparatively good when the thickness of coating portion is 2～5mm.Under the thickness of coating portion was situation below the 2mm, coating portion was harder when gripping handle part, and it is poor to close chirality, and when the thickness of coating portion when 5mm is above, it is too thick that handle part becomes, and is difficult to control.
From above-mentioned result of the test as can be known, when in the scope of rubber hardness 15～40 of above-mentioned clad material, in the scope of thickness at 2～5mm of coating portion, handle part to close chirality good.
Embodiment 8
Using rubber hardness as clad material is 20 styrene series elastomer resin " THERMOLAST " of company (German KRAIBURG), mode with average thickness=3mm covers about 90% of handle part surface, the formation coefficient of friction is 2 coating portion, produces the toothbrush sample.
Comparative example 9
As clad material, substituted phenylethylene based elastomers resin, the use rubber hardness is 60 olefin-based elastomer resin (" the ミ ラ ス ト-6030N " of Mitsui Chemicals (strain)), mode with average thickness=1mm covers about 90% of handle part surface, the formation coefficient of friction is 0.2 coating portion, produces toothbrush sample (be equivalent to the spy and open the described toothbrush of 2000-265232 communique).
Test example 3
The toothbrush sample that uses embodiment 8 and comparative example 9 to make carries out actual grippings, to the skid resistance of handle part at this moment with close chirality investigation.Respondent's quantity (testing the quantity of employed sample) of test: n=30 carries out two time-of-weeks, respectively its result is estimated according to following evaluation criterion, and its mean value is illustrated in the table 3.
7: very good
6: good
5: can manage it
4: be not easy to make commentary
3: not so good
2: poor
1: non-constant
[table 3]
| Survey item | Embodiment 8 | Comparative example 9 |
| The handle handle part close chirality | 5.8 | 4.3 |
| The skid resistance of handle handle part | 6.0 | 4.4 |
From the result shown in the table 3 as can be seen, the skid resistance of the toothbrush sample of embodiment 8 and to close chirality better than the toothbrush sample of comparative example 9, thus usability is more excellent.
Test example 4
Then, wrinkling processing is implemented on the coating portion surface that is formed by the styrene series elastomer resin, carried out evaluation test at the influence that this processing brings for the adherence of handle part.
This evaluation test adopts that rubber hardness is 15,40, coefficient of friction is 1.0 styrene series elastomer resin, and forming average thickness is the coating portion of 3mm, and wrinkling processing is implemented on its surface, makes the toothbrush sample.Three kinds of the sizes that the mean roughness (Ra) that is formed on the lip-deep wrinkle of above-mentioned coating portion is made as the scope of less than 10 μ m, 10～200 μ m and surpasses 200 μ m.
For resulting toothbrush sample, according to following standard tacky state and mouldability are estimated respectively.Shown in its result table 4 described as follows.
Adherence:
A: when controlling handle part, complete imperceptible adhesion
B: when controlling handle part, almost imperceptible adhesion
C: when controlling handle part, feel adhesion
Mouldability:
A: good forming ability
B: from aspect the release property of mould separating, mouldability is bad
[table 4]
According to the result shown in the table 4 as can be known, be under 15～40 the situation at the rubber hardness of the clad material that constitutes by the styrene series elastomer resin, consider from the angle of adherence and mouldability, the roughness of wrinkling processing is preferably in the scope of Ra=10～200 μ m, during Ra less than 10 μ m, have the tendency that produces the adhesion sense, and when Ra for above 200 μ m big or small the time, mouldability is not good.
In addition, wish 50% or more the enforcement of above-mentioned wrinkling processing on the whole surface or the coating portion surface of coating portion.When less than 50%, the anti-adhesion effect that is obtained by wrinkling processing is lower.Therefore as can be known, have rubber hardness with clad material and be 15～40, a toothbrush sample of the wrinkle roughness coating portion that this condition processing obtains in the scope of 10～200 μ m, non-adhesiveness, mouldability is also good.
Claims (4)
1. toothbrush, it is characterized in that, possess the head that plants pieces, neck, and handle part, the coating portion that described handle part comprises the core portion that is made of the hard resin material and is coated in contact on the core portion side face with this core portion and is made of the resin material softer than core portion matter, described coating portion covers more than 70% of described handle part surface, and the coefficient of friction on the surface of described coating portion is more than 1.
2. toothbrush as claimed in claim 1 is characterized in that, described core portion is formed by thermoplastic resin, and described coating portion is formed by elastomer resin, and the rubber hardness of described coating portion is 15～40, and the thickness of described coating portion is 2～5mm.
3. toothbrush as claimed in claim 1 or 2, it is characterized in that, near the rear end side of near rear side the described neck side end of described handle part and/or described handle part the face side of planting mao facing side and rear side, described handle part central authorities, be formed with respectively from described core portion to the side-prominent protuberance of foreign side, the total area that is exposed to outside part from described coating portion in these protuberances accounts for below 10% of area of described handle part.
4. as each described toothbrush in the claim 1 to 3, it is characterized in that, described coating portion surface area implemented wrinkling processing more than 50%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP177100/2004 | 2004-06-15 | ||
| JP2004177100A JP4558384B2 (en) | 2004-06-15 | 2004-06-15 | toothbrush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1968621A true CN1968621A (en) | 2007-05-23 |
| CN100482123C CN100482123C (en) | 2009-04-29 |
Family
ID=35509371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800193272A Active CN100482123C (en) | 2004-06-15 | 2005-06-13 | Tooth brush |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4558384B2 (en) |
| KR (1) | KR101215092B1 (en) |
| CN (1) | CN100482123C (en) |
| HK (1) | HK1102173A1 (en) |
| WO (1) | WO2005122827A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186375A (en) * | 2008-10-28 | 2011-09-14 | 博朗有限公司 | Toothbrush |
| CN103442614A (en) * | 2011-06-20 | 2013-12-11 | 狮王株式会社 | Toothbrush |
| CN103763982A (en) * | 2011-08-26 | 2014-04-30 | 狮王株式会社 | Tooth brush |
| CN108024619A (en) * | 2015-09-25 | 2018-05-11 | 狮王株式会社 | Toothbrush |
| CN114025643A (en) * | 2019-06-28 | 2022-02-08 | 狮王株式会社 | Tooth brush |
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| DE102007017869A1 (en) * | 2007-04-13 | 2008-10-16 | Braun Gmbh | toothbrush |
| JP5081911B2 (en) * | 2007-06-14 | 2012-11-28 | ライオン株式会社 | toothbrush |
| US20090072610A1 (en) * | 2007-09-14 | 2009-03-19 | Alan Vincent Sorrentino | Method of providing a decorative member on a toothbrush |
| JP2009089849A (en) * | 2007-10-05 | 2009-04-30 | Hashimoto Brush Seisakusho:Kk | Brush for oral care |
| JP2009142485A (en) * | 2007-12-14 | 2009-07-02 | Seiban:Kk | Shoulder strap for bag |
| USD666005S1 (en) | 2008-04-21 | 2012-08-28 | Braun Gmbh | Portion of a toothbrush handle |
| US8510893B2 (en) | 2008-06-20 | 2013-08-20 | Colgate-Palmolive Company | Toothbrush with visual and/or other sensory effects |
| USD657569S1 (en) | 2010-02-26 | 2012-04-17 | Colgate-Palmolive Company | Head portion of an oral care implement |
| CN103220937B (en) | 2010-11-22 | 2015-11-25 | 博朗有限公司 | Toothbrush |
| KR101321574B1 (en) * | 2010-12-16 | 2013-10-25 | 주식회사 네오비 | Tooth brush handle |
| US11291293B2 (en) | 2014-12-23 | 2022-04-05 | Colgate-Palmolive Company | Oral care implement |
| CN110338553B (en) | 2014-12-23 | 2021-06-22 | 高露洁-棕榄公司 | Oral care implement having a multi-component handle |
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| BR112017010942B1 (en) | 2014-12-23 | 2021-10-05 | Colgate-Palmolive Company | INSTRUMENT FOR ORAL HYGIENE |
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| MX2017007843A (en) | 2014-12-23 | 2017-09-19 | Colgate Palmolive Co | Oral care implement. |
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| US9802347B2 (en) | 2015-02-02 | 2017-10-31 | Colgate-Palmolive Company | Method of forming an oral care implement |
| JP6512703B2 (en) * | 2015-06-10 | 2019-05-15 | ライオン株式会社 | toothbrush |
| USD777446S1 (en) | 2015-07-23 | 2017-01-31 | Colgate-Palmolive Company | Oral care implement handle |
| US10631964B2 (en) | 2017-12-12 | 2020-04-28 | Colgate-Palmolive Company | Oral care implement |
| USD846883S1 (en) | 2017-12-12 | 2019-04-30 | Colgate-Palmolive Company | Handle of an oral care implement |
| US10709533B2 (en) | 2017-12-12 | 2020-07-14 | Colgate-Palmolive Company | Oral care implement and handle and refill head thereof |
| JP7190872B2 (en) | 2018-11-08 | 2022-12-16 | ライオン株式会社 | toothbrush |
| USD891784S1 (en) | 2018-12-18 | 2020-08-04 | Colgate-Palmolive Company | Electric toothbrush handle |
| USD960582S1 (en) | 2020-12-10 | 2022-08-16 | Colgate-Palmolive Company | Oral care refill head |
| US11877645B2 (en) | 2021-05-14 | 2024-01-23 | Colgate-Palmolive Company | Personal care implement |
| USD1029506S1 (en) | 2021-12-30 | 2024-06-04 | Colgate-Palmolive Company | Toothbrush |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3162573B2 (en) * | 1994-06-10 | 2001-05-08 | サンスター株式会社 | toothbrush |
| JPH1175938A (en) * | 1997-09-03 | 1999-03-23 | Shin Etsu Polymer Co Ltd | Toothbrush handle |
| JP2001299450A (en) * | 2000-04-27 | 2001-10-30 | Lion Corp | Toothbrush |
| JP4541508B2 (en) * | 2000-07-19 | 2010-09-08 | ライオン株式会社 | Toothbrush handle manufacturing method |
| JP2003275027A (en) * | 2002-03-22 | 2003-09-30 | Sunstar Inc | Toothbrush |
-
2004
- 2004-06-15 JP JP2004177100A patent/JP4558384B2/en not_active Expired - Fee Related
-
2005
- 2005-06-13 KR KR1020067026150A patent/KR101215092B1/en active IP Right Grant
- 2005-06-13 WO PCT/JP2005/010802 patent/WO2005122827A1/en active Application Filing
- 2005-06-13 CN CNB2005800193272A patent/CN100482123C/en active Active
-
2007
- 2007-09-18 HK HK07110137.6A patent/HK1102173A1/en not_active IP Right Cessation
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186375A (en) * | 2008-10-28 | 2011-09-14 | 博朗有限公司 | Toothbrush |
| CN103442614A (en) * | 2011-06-20 | 2013-12-11 | 狮王株式会社 | Toothbrush |
| CN103442614B (en) * | 2011-06-20 | 2016-06-08 | 狮王株式会社 | Toothbrush |
| CN103763982A (en) * | 2011-08-26 | 2014-04-30 | 狮王株式会社 | Tooth brush |
| CN103763982B (en) * | 2011-08-26 | 2016-03-30 | 狮王株式会社 | Toothbrush |
| CN108024619A (en) * | 2015-09-25 | 2018-05-11 | 狮王株式会社 | Toothbrush |
| CN108024619B (en) * | 2015-09-25 | 2022-05-13 | 狮王株式会社 | Tooth brush |
| CN114025643A (en) * | 2019-06-28 | 2022-02-08 | 狮王株式会社 | Tooth brush |
| CN114025643B (en) * | 2019-06-28 | 2024-06-04 | 狮王株式会社 | Toothbrush with tooth brush |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4558384B2 (en) | 2010-10-06 |
| CN100482123C (en) | 2009-04-29 |
| WO2005122827A1 (en) | 2005-12-29 |
| KR101215092B1 (en) | 2012-12-24 |
| HK1102173A1 (en) | 2007-11-09 |
| KR20070019768A (en) | 2007-02-15 |
| JP2006000202A (en) | 2006-01-05 |
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