CN102366962A - Tool bit for rotary electric shaver - Google Patents
Tool bit for rotary electric shaver Download PDFInfo
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- CN102366962A CN102366962A CN2011103172612A CN201110317261A CN102366962A CN 102366962 A CN102366962 A CN 102366962A CN 2011103172612 A CN2011103172612 A CN 2011103172612A CN 201110317261 A CN201110317261 A CN 201110317261A CN 102366962 A CN102366962 A CN 102366962A
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- elastic force
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Abstract
The invention discloses a tool bit for a rotary electric shaver, wherein a knife mesh hood is provided with a wavy curved surface, C-shaped or S-shaped beard inlet hole grooves are arranged on the knife mesh hood, the beard inlet hole grooves are combination of circular holes and grooves or combination of long grooves and short grooves; a movable knife is fixed on a drive connecting member in a hot-pressing smelting manner to form a movable knife assembly, the movable knife assembly is driven by an upper conical surface of a conical surface driving shaft and an inner conical surface of a driving shaft sleeve in a contact manner, the movable knife assembly is arranged on a boss on the inner surface of an elastic tool apron, and the movable knife assembly is only in contact with the boss (11) on the inner surface of the elastic tool apron; the elastic tool apron is used for applying a locking force to the movable knife assembly upwards and is connected with the knife mesh hood; and the movable knife assembly is in firm contact with the inner surface of the knife mesh hood under the action of the locking force. The tool bit for the rotary electric shaver in the invention is used for solving the problems of beard clamping, beard pulling, bad sharpness and poor shaving tone quality of the traditional shaver tool bits and perfectly capturing the facial skin outline of a human body so as to achieve a more effective, comfortable and complete shaving effect.
Description
Technical field
The present invention relates to a kind of electric razor tool tip field, especially for the cutter head of rotary electric shaver.
Background technology
The electric shaver of selling on the market at present mainly contains two kinds: reciprocating type and rotary.Generally speaking; The comfort level that shaves, the efficient that shaves (speed), the clean degree that shaves are directly related with the cutter head structure of individual's face contour, beard situation and shaver; Short, hard, straight beard is applicable to reciprocating razor, and reciprocating razor knife face and skin of face contact area are big, and the cutter net approaches (about 0.06mm), cutter head rotating speed generally more than 8000RPM; Shave that to remove short, straight beard effective; But the disadvantage of reciprocating razor is that vibration is big, is unfavorable for that the part shaves, and has crooked slightly or soft beard just is not easy to shave to remove.And rotary shaver has just overcome the shortcoming of reciprocating razor, because transmission mechanism has adopted the gear structure of reduction of speed, the rotating speed of cutter head portion is generally about 3000RPM; Vibration tonequality little, that shave is better when shaving; Can remove the beard of facial local buckling, but the whole efficient that shaves is not high, and the goodness of fit of cutter head and skin of face is not enough; Thicker (0.06～the 0.12mm of cutter net; Local thick of cutter net reaches 0.12mm), it is residual the beard root often to occur, and problem such as shave inadequately thoroughly, comfort level is not good.
In order to solve the above-mentioned shortcoming of rotary shaver, be that the domestic and international shaver producer of representative has released the cambered surface cutter head and replaced plane cutter head (as shown in Figure 2) with Dutch PHILIPS Co., to increase the goodness of fit of cutter head and skin of face.In order effectively to increase the area that shaves; Improve shave efficient with shave comfort level, shaver both domestic and external in recent years producer strengthened the R&D intensity of razor tool tip one after another, successively released the structure of two rings, three ring cambered surface cutter heads; Part producer even released the design concept of Fourth Ring cambered surface cutter head; Be merely on the φ 20.4mm cutter head wire side at outside dimension, the increase of ring-type certainly will strengthen the difficulty that cutter head is made, and is made as example with three traditional ring cambered surface cutter heads; Three ring cambered surfaces just must be carried out three skivings, grind for three times cutter head wire side (cutter guard 7), and three interior ring inner surfaces that must tool setting guard 7 for cooperating also of assurance cutter guard 7 and moving knife 8 grind; And the increase of number of rings can not realize shaving of cutter guard 7 full arc faces, must avoid the coupling part between each ring between moving knife 8 and the cutter guard 7, and each interannular must stay the gap that can't shave.In addition, the complexity of cambered surface cutter head processing technology and process equipment require high to operating personnel's technical merit, and the domestic part of trying one's best producer has produced the cambered surface cutter head; But because production cost is high; Can't realize producing in batches, and unstable product quality is really list marketing also.Therefore it is big to develop a kind of working face that shaves, the efficient that shaves height, and the comfort level that shaves is good, makes easier rotary shaver head and has crucial meaning.
Summary of the invention
Technical problem to be solved by this invention provides the rotary electric shaver cutter head of advantages such as a kind ofly having that the speed of shaving is fast, the tonequality that shaves is good, veneer effect, comfort level be good, and be easy to manufacture.
In order to solve the problems of the technologies described above, technical scheme provided by the invention is: a kind of rotary electric shaver cutter head, and it is made up of the cutter guard with wavy curved surface, propeller shaft sleeve, conical surface driving shaft, moving knife, elastic force tool rest, driving connector, wherein:
Offering advancing of " C " shape or serpentine on the cutter guard must hole slot, and advancing hole slot to be that circular hole combines with groove, or elongated slot with lack groove and combine;
Moving knife is fixed on to drive through the molten mode of hot pressing and forms the moving knife assembly on the connector; The moving knife assembly contacts drive by the last conical surface of conical surface driving shaft with the inner conical surface of propeller shaft sleeve; The moving knife assembly is arranged on the boss of elastic force tool rest inner surface, and the rotation of moving knife assembly only contacts with the boss of elastic force tool rest inner surface;
The elastic force tool rest upwards applies to the moving knife assembly and gives as security tight power, and couples together with the cutter guard, and the effect of moving knife assembly tight power under detention closely contacts with cutter guard inner surface down.
With respect to prior art, moving knife assembly of the present invention closely contacts with cutter guard inner surface under the effect of the tight power of signature of elastic force tool rest, can improve the sharpness that shaves; Under the effect of the tight power of being in prison; The last conical surface on the conical surface driving shaft also can accurately coincide with the inner conical surface that is installed in the propeller shaft sleeve on the cutter guard; Guarantee that the moving knife assembly rotates along axis direction, the phenomenon that does not depart from makes and shaves more along phenomenon sliding, that can not press from both sides palpus, draw palpus.
In addition, be wavy net surface structure owing to what the present invention adopted, the cutter guard is thinner; Interior cutter head contacts with the cutter guard fully, realizes shaving of the whole network face, the area that shaves maximization; The goodness of fit of wire side radian and face contour is better; And designed independently that conical surface rotating actuator and elastic force strengthen structure, realized the correct location of moving knife and contact, so can realize the speed that shaves faster, better shave sharpness, better the shave tonequality and the skin sense of shaving with the tight of cutter guard.In addition, the manufacture craft of cutter head of the present invention is simpler relatively, and the cost of material is low, is fit to large-scale production, and can obtains high economic benefit.
Description of drawings
Fig. 1 is a cutter head cut-away view of the present invention.
Fig. 2 is the existing cutter head cut-away view of selling on the market.
Fig. 3 is the exploded view of cutter head of the present invention.
Fig. 4 is wavy cutter guard 1 sketch map of the present invention.
Fig. 5 is the combine schematic appearance of cutter guard 1 of long and short groove.
Fig. 6 is the schematic appearance that hole, groove combine cutter guard 1.
Fig. 7 is cutter guard 1 sectional view of the present invention.
Fig. 8 is the existing cutter guard sectional view of selling on the market.
Fig. 9 is the elastic force tool rest 5 embedded structure sketch mapes of cutter head of the present invention.
Wherein: 1 is the cutter guard; 2 is propeller shaft sleeve; 3 is conical surface driving shaft; 4 is moving knife; 5 is the elastic force tool rest; 6 for driving connector; 7 cutter guards for the existing cutter head of selling on the market; 8 moving knife for the existing cutter head of selling on the market; 9 reference columns for the existing cutter head of selling on the market; 10 is supporting pillar; 11 is boss; 12 is the last conical surface; 13 is inner conical surface.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, further set forth the present invention.These embodiment are interpreted as only being used to the present invention is described and are not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can do various changes or modification to the present invention, and these equivalences change and modify and fall into claim of the present invention institute restricted portion equally.
Like Fig. 1, shown in Figure 3; A kind of wavy curved surface rotary type electric razor tool tip that the preferred embodiment of the present invention provides, it is made up of the cutter guard 1 with wavy curved surface, propeller shaft sleeve 2, conical surface driving shaft 3, moving knife 4, elastic force tool rest 5, driving connector 6.Wherein:
In the present embodiment, rotating shaft is formed by propeller shaft sleeve 2 and conical surface driving shaft 3, and moving knife 4 is installed on 3 supporting pillars 10 that drive connector 6; Through the fixing moving knife assembly that forms of the molten processing method of hot pressing; Drive the hole that connector 6 central authorities offer square, conical surface driving shaft 3 inserts and is fixed in the hole, and motor transmits rotatory force through reduction gearing and actuating arm and arrives the lower end that drives connector 6; Drive connector 6 and rotate, drive conical surface driving shaft 3 and rotate.Because the reference column 9 (as shown in Figure 2) that does not have punching stretch to come out on the cutter guard 1 in the present embodiment; The punch process operation will practice thrift for 7～8 steps than the cutter head stamping procedure of prior art; And can not occur because of reference column 9 distortion cause the moving knife positioning of rotating not good, the disalignment folder occurs and must, draw bad phenomenon such as palpus.The moving knife assembly contacts drive through the last conical surface 12 on the conical surface driving shaft 3 with the inner conical surface 13 of propeller shaft sleeve 2 on being fixedly mounted on cutter guard 1; The moving knife assembly is placed on four boss 11 of elastic force tool rest 5 inner surfaces, only contacts with the boss 11 of elastic force tool rest 5 inner surfaces during the rotation of moving knife assembly, rather than contacts with the whole interior ring surface of elastic force tool rest.Such purpose of design is the frictional force when reducing the rotation of moving knife assembly, reduces load current, improves the durability of battery.Elastic force tool rest 5 upwards applies the tight power of giving as security to moving knife assembly, conical surface driving shaft 3, and is connected with cutter guard 1 and is fixed up.The method of attachment of elastic force tool rest 5 and cutter guard 1 has multiple, when elastic force tool rest 5 is made, and can be through the method for spot welding; When being plastics (POM or ABS) manufacturing, can fix elastic force tool rest 5 in the mode of elastic force tool rest and cutter guard interface design embedding fixing (as shown in Figure 9).The moving knife assembly closely contacts with cutter guard 1 inner surface under the effect of the tight power of signature of elastic force tool rest 5; Can improve the sharpness that shaves; Under the effect of the tight power of being in prison, the last conical surface 12 on the conical surface driving shaft 3 also can accurately coincide with the inner conical surface 13 that is installed in the propeller shaft sleeve 2 on the cutter guard 1, guarantees that the moving knife assembly rotates along axis direction; The phenomenon that does not depart from makes and shaves more along phenomenon sliding, that can not press from both sides palpus, draw palpus.
In the present embodiment; The method of the enterprising fluting that must hole slot of cutter guard (1) can when punching press, accomplish also maybe be through punching press after the method removed of electrolysis form, preferably impact style formation is owing to material has only 0.08～0.1mm; Can't go out moving knife reference column (like reference column among Fig. 8 9) by punching stretch; Rotating shaft is at the fixed station of the stretched propeller shaft sleeve 2 of cutter guard 1 central portion and locating hole (like Fig. 3), forms rotating mechanism by propeller shaft sleeve 2 and conical surface driving shaft 3, makes power 4 make cutting movement by phase tool setting guard 1; Because the material monolithic wall is thin, when shaving, can produce the tonequality that better shaves.
As previously mentioned, the crest of wavy cutter guard 1 and trough form suitable difference in height (0.2mm-0.5mm), can effectively catch the long and short palpus of human body, and crest and trough all have the function of shaving.Present two rings, three on the market encircle the problem (like Fig. 2) that the cambered surface cutter head structures exist the changeover portion of cambered surface and cambered surface to shave; Wavy cutter guard 1 can be realized shaving of the whole network face; The area that shaves is bigger, and this structure has the following advantages: short hairs or straight, hard beard are shaved by crest easily and are removed, and the beard of long palpus, veneer growth or softness, crooked beard are shaved at trough easily and removed; Crest of each section and trough present not high difference in height; The beard that is fit to different length imports, and removes not residual fibrous root even the difficult beard of shaving also can segmentation be shaved.So wavy cutter net cover structure can adapt to complicated face contour, realize veneer more, the more comfortable impression of shaving.
Introduce the preferred fabrication example of cutter head of the present invention below in conjunction with accompanying drawing:
The present invention's first preferred fabrication example:
The technological process of the first preference cutter head: cutter guard punching press → electrolysis fluting, perforate → injection moulding → moving knife punching press → brightness heat treatment → moving knife hot pressing blow be fixed → moving knife grinds and put the first edge on a knife or a pair of scissors → and cutter guard, moving knife cooperate grinding → cutter guard polishing → assembling → plated film
To above-mentioned manufacturing procedure explanation as follows:
The first step; Stainless steel material (SUS420J2) punching stretch that with thickness is 0.1mm goes out wavy curved surface cutter guard 1; Because material is than tool tip material (thickness is 0.5mm) was thin in the past; And be not both the reference column 9 that central portion does not need stretched blind hole with cutter head in the past; Such design can be simplified the design and the drawing numbers (traditional blind hole drawing numbers 7 to 8 times or more) of cutter guard 1 five metals mould greatly and simplify the hardware stamping step, has improved the machining accuracy (cambered surface profile tolerance and location dimension) of cutter guard.The surface of stainless steel of cutter cover net 1 is handled through mirror finish, and the material surface glossiness is good more, can reduce ensuing postorder process time and step, enhances productivity.
In second step, utilize through electrolysis mode that anode is carried out the processing in cutter guard groove, hole by electrolysis principle under the electrochemical action of vibrating electrode; Form beard and introduce slotted eye; The distribution in groove, hole can be adjusted according to design demand, and well width is 0.35～0.45mm, and bore dia is 0.3～0.45mm; Can be designed to slotted eye according to the needs that shave and combine (like Fig. 6), also can be that elongated slot combines (like Fig. 5) with short groove.Because the cutter guard has wavy curved surface, the flute profile that electrolysis is left can adopt " C " font or " S " font, can guarantee that like this beard imports easily, can effectively pin beard when shaving escape phenomenon does not take place, and the assorted bits of the beard that shaves off can not eject wire side.
The 3rd step; Go out propeller shaft sleeve 2, conical surface driving shaft 3, elastic force tool rest 5, drive 6 four parts of connector through the injection machine injection mo(u)lding; Plastic material adopts has strong wearability; And POM material or ABS material with certain degree of hardness, toughness also can adopt modification POM (like the POM+20% glass) in order to improve intensity and life-saving POM material.
The 4th step went out moving knife 4 with the stainless steel material (SUS420J2) of 0.4mm through punch ram, was reduce to shave load current and the raising sharpness that shaves, and moving knife edge tilted angle is 40 degree～60 degree, and cutting edge and cutter guard contact area are accomplished minimum as far as possible.
The 5th step; Respectively moving knife 4 and cutter guard 1 are carried out brightness heat treatment processing, hardening heat is controlled at 950～1020 ℃, and adopts 250～350 ℃ of lonneals; To guarantee the releasable material internal stress; Heat treatment step makes cutter guard 1 and moving knife 4 have suitable hardness 530～600HV, and has toughness, wearability, the service life that can improve cutter head.Because during the slotted eye of second one-step electrolysis processing cutter guard, material hardness is little to the Electrolyzed Processing effectiveness affects,, also can carry out earlier carrying out cutter guard electrolysis fluting, perforate again after the heat treatment for the cutter guard of avoiding processing slotted eye after the heat treatment deforms.
The 6th step fixed on moving knife hot pressing blow through hot pressing welding mode and to drive on the connector 6, and Power Component was ground put the first edge on a knife or a pair of scissors.Because skive blade is a single blade, can once grind completion.
In the 7th step, Power Component and cutter guard cooperate grinding, to improve its cambered surface fitness.
In the 8th step, the tool setting guard carries out polishing, improves the glossiness of cutter guard outer surface, and improves the skin sense when shaving.
In the 9th step, each component-assembled together, the contact-making surface of conical surface driving shaft 3 and propeller shaft sleeve 2 will add lubricating oil.Because cutter guard 1 adopts with elastic force tool rest 5 and embeds the screens fixed form in the present embodiment, does not need to weld in addition fixing.
In addition, for reaching the effect that better shaves, the crest portion of tool setting guard 1 carries out skiving and handles, and makes crest portion material thickness reduce to 0.5～0.8mm.
Be service life and the case hardness that improves cutter head better, can also the tool setting guard, moving knife carries out vacuum coating and handle, handle like ALTIN, CrCN, plating TI.
The present invention's second preferred fabrication example:
The technological process of second preferred fabrication example cutter head: cutter guard, moving knife punching press → brightness heat treatment → injection moulding → moving knife grind and put the first edge on a knife or a pair of scissors → and cutter guard, moving knife cooperate grindings → cutter guard polishing → moving knife hot pressing blow to decide → assemble
Above-mentioned process is explained as follows:
The first step is that stainless steel material (SUS420J2) punching stretch of 0.08mm goes out wavy curved surface cutter guard 1 with thickness, and in punching course, slotted eye is also accomplished simultaneously.Simultaneously, be that the stainless steel material (SUS420J2) of 0.4mm goes out moving knife 4 through punch process to thickness, moving knife edge tilted angle is 40 degree～60 degree.
Second step, respectively moving knife 4 and cutter guard 1 are carried out brightness heat treatment processing, hardening heat is controlled at 950～1020 ℃, and adopts 250～350 ℃ of lonneals.Cutter guard and moving knife hardness are 530～600HV after the heat treatment process.
The 3rd step injected propeller shaft sleeve 2, conical surface driving shaft 3, elastic force tool rest 5, drives 6 four parts of connector, and plastic material adopts POM or ABS material.
The 4th goes on foot, and power 4 is ground put the first edge on a knife or a pair of scissors.
In the 5th step, power 4 cooperates grinding with cutter guard 1, to improve its cambered surface fitness.
In the 6th step, 1 surface finish of cutter guard is handled, and improves the glossiness of cutter guard outer surface, and improves the skin sense when shaving.
In the 7th step, moving knife 4 hot pressing blows fix on and drive on the connector 6, are fixed together each component-assembled.
Because the cutter head that the foregoing description is made has wavy net surface structure; Cutter guard wire side is thinner, and interior cutter head contacts with the cutter guard fully, realizes shaving of the whole network face; The area that shaves maximization; The goodness of fit of wire side radian and face contour is better, and has conical surface drive transmission device and elastic force and strengthen structure, solved in the past the razor tool tip folder must, draw must, problems such as not good, the lower tone that shaves of sharpness; Can perfect catch the human body face contoured skin, realize more efficiently, more comfortable, the impression of shaving more completely.In addition, above-mentioned cutter head manufacture craft is simpler, and the cost of material is low, is fit to large-scale production, can obtain high economic benefit.
Claims (9)
1. a rotary electric shaver cutter head is characterized in that, it is made up of the cutter guard (1) with wavy curved surface, propeller shaft sleeve (2), conical surface driving shaft (3), moving knife (4), elastic force tool rest (5), driving connector (6), wherein:
Offering advancing of " C " shape or serpentine on the cutter guard (1) must hole slot, and advancing hole slot to be that circular hole combines with groove, or elongated slot with lack groove and combine;
Moving knife (4) is fixed on through the molten mode of hot pressing and drives upward formation moving knife assembly of connector (6); The moving knife assembly contacts drive by the last conical surface (12) of conical surface driving shaft (3) with the inner conical surface (13) of propeller shaft sleeve (2); The moving knife assembly is arranged on the boss (11) of elastic force tool rest (5) inner surface, and the rotation of moving knife assembly only contacts with the boss (11) of elastic force tool rest (5) inner surface;
Elastic force tool rest (5) upwards applies to the moving knife assembly and gives as security tight power, and couples together with cutter guard (1), and the effect of moving knife assembly tight power under detention closely contacts with cutter guard (1) inner surface down.
2. rotary electric shaver cutter head according to claim 1 is characterized in that, cutter guard (1) is formed by the metal material manufacturing, and thickness is 0.05～0.12mm.
3. rotary electric shaver cutter head according to claim 1 is characterized in that, cutter guard (1) is formed by the plastic material manufacturing, and thickness is 0.08～0.1mm.
4. according to the said rotary electric shaver head of claim 1, it is characterized in that moving knife (4) has the arc surface cutting knife, the edge tilted angle is 40 degree～60 degree.
5. rotary electric shaver head according to claim 1 is characterized in that, elastic force tool rest (5) has stretching structure, can upwards apply to give as security tight power, and its material is a metal material.
6. rotary electric shaver head according to claim 1 is characterized in that, elastic force tool rest (5) has stretching structure, can upwards apply to give as security tight power, and its material is plastics.
7. rotary electric shaver head according to claim 1 is characterized in that, elastic force tool rest (5) inner surface has four boss (11).
8. rotary electric shaver head according to claim 5 is characterized in that, elastic force tool rest (5) couples together with the method for cutter guard (1) through spot welding.
9. rotary electric shaver head according to claim 6 is characterized in that, elastic force tool rest (5) embeds the mode that fixes with cutter guard (1) through the interface design and couples together.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110317261.2A CN102366962B (en) | 2011-10-18 | 2011-10-18 | Tool bit for rotary electric shaver |
| PCT/CN2012/001395 WO2013056512A1 (en) | 2011-10-18 | 2012-10-17 | Rotary electric shaver head |
| DE112012004401.0T DE112012004401B4 (en) | 2011-10-18 | 2012-10-17 | Rotating electric shaving head |
| US14/380,821 US20150082637A1 (en) | 2011-10-18 | 2012-10-17 | Rotary electric shaver head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110317261.2A CN102366962B (en) | 2011-10-18 | 2011-10-18 | Tool bit for rotary electric shaver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102366962A true CN102366962A (en) | 2012-03-07 |
| CN102366962B CN102366962B (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110317261.2A Expired - Fee Related CN102366962B (en) | 2011-10-18 | 2011-10-18 | Tool bit for rotary electric shaver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102366962B (en) |
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| CN103753608A (en) * | 2013-12-23 | 2014-04-30 | 温州朗威电器有限公司 | Shaver, shaver foil and manufacturing process of shaver foil |
| CN104858898A (en) * | 2014-02-24 | 2015-08-26 | 皇家飞利浦有限公司 | A Rotary Shaver Having A Disc-shaped Element |
| CN104858899A (en) * | 2014-02-24 | 2015-08-26 | 皇家飞利浦有限公司 | Rotary shaver comprising disc-shaped element |
| CN105408072A (en) * | 2013-07-25 | 2016-03-16 | 皇家飞利浦有限公司 | A personal care device as well as a cutting unit for such a personal care device |
| CN108068144A (en) * | 2016-11-11 | 2018-05-25 | 浙江超人科技股份有限公司 | The processing method of the anti-detachment dise knife component of electric shaver |
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| CN105408072A (en) * | 2013-07-25 | 2016-03-16 | 皇家飞利浦有限公司 | A personal care device as well as a cutting unit for such a personal care device |
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| JP2017500909A (en) * | 2013-12-23 | 2017-01-12 | ウェンシュウ ランウェ エレクトリカル アプライアンス コーポレーション リミテッドＷｅｎｚｈｏｕ Ｒｕｎｗｅ Ｅｌｅｃｔｒｉｃａｌ Ａｐｐｌｉａｎｃｅ Ｃｏ．， Ｌｔｄ | Shaver, shaver mesh blade and method for manufacturing shaver mesh blade |
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| CN104858898A (en) * | 2014-02-24 | 2015-08-26 | 皇家飞利浦有限公司 | A Rotary Shaver Having A Disc-shaped Element |
| CN104858899A (en) * | 2014-02-24 | 2015-08-26 | 皇家飞利浦有限公司 | Rotary shaver comprising disc-shaped element |
| CN104858899B (en) * | 2014-02-24 | 2019-04-26 | 皇家飞利浦有限公司 | Rotation razor including disk-like element |
| CN108068144A (en) * | 2016-11-11 | 2018-05-25 | 浙江超人科技股份有限公司 | The processing method of the anti-detachment dise knife component of electric shaver |
| CN108068144B (en) * | 2016-11-11 | 2023-08-22 | 浙江超人科技股份有限公司 | Processing method of anti-separation circular knife assembly of electric shaver |
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