CN101448610B - Lower cutter for a shaving head of an electric razor - Google Patents
Lower cutter for a shaving head of an electric razor Download PDFInfo
- Publication number
- CN101448610B CN101448610B CN2007800184427A CN200780018442A CN101448610B CN 101448610 B CN101448610 B CN 101448610B CN 2007800184427 A CN2007800184427 A CN 2007800184427A CN 200780018442 A CN200780018442 A CN 200780018442A CN 101448610 B CN101448610 B CN 101448610B
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- Prior art keywords
- bottom tool
- blade
- cutting
- tool according
- sword
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
- B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
- B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
- B26B19/044—Manufacture and assembly of cutter blocks
Abstract
The present invention relates to a lower cutter (4) for a shaving head, equipped with an upper cutter (7), of an electric razor, comprising at least one blade (10) which has a cutting edge (11) pointing in a direction of movement. The invention also relates to a shaving head having such a lower cutter and to an electric razor equipped with it. It is proposed to no longer give the cutting edge the conventional wedge-shaped configuration in which simply two planes inclined at an acute angle define the cutting edge contour. According to the invention, the cutting edge has, one behind the other in the direction of movement (16), at least two cutting edge sections (18,19) having different cutting angles. By means of a cutting angle graduation or a changing cutting angle, an optimum compromise can be achieved between the conflicting requirements of cutting behaviour and edge stability. The cutting edge section having the more obtuse or less acute cutting angle produces the desired cutting edge stability and at the same time provides for a long service life. On the other hand, the cutting edge sections having the more acute angle reduce the cutting forces, such that an improved threading behaviour can be achieved.
Description
Technical field
The present invention relates to a kind of bottom tool, this bottom tool is used for the cutting head that being equipped with of dry type razors fixed a cutting tool, and this bottom tool has at least one blade, and blade has at least one sword, and described sword points at least one direction of motion of blade.The invention still further relates to a kind of cutting head with this bottom tool, and a kind of dry type razors that is equipped with described cutting head.
Background technology
For example, known dry type razors cutting head from EP 0743144B1 with this bottom tool, fixing a cutting tool of cutting head is constituted as the perforation thin layer in view of the above, and the bottom tool of set of blades form moves back and forth below the perforation thin layer.At this, blade is come to a point with the acute angle form and should be had the cutting angle that is between 35 ° to 90 °.Different with the described this bottom tool that comes to a point with the acute angle form, DE 4423503C1 discloses a kind of bottom tool that is used for dry type razors cutting head, this bottom tool equally should with the collaborative work of perforated shear thin layer, yet wherein, the blade seamed edge of blade has 90 ° cutting angle.
In known dry type razors, no matter it is rotary system or the oscillatory type system of being constituted as, and all is to fix a cutting tool and the bottom tool collaborative work all the time, and they keep directly contacting to small part each other.The advantage that wherein is provided with the shaving apparatus of the bottom tool with so-called 90 ° of blade seamed edges is extraordinary skin sparing, and has high blade seamed edge stability, and then has long service life.Different therewith, the advantage with bottom tool of the sword that comes to a point with the wedge angle form is: lower cutting force and and then better drawing property.According to what basic principle was set up be, blade seamed edge angle is more little, and cutting force is just more little.Yet little blade seamed edge angle can cause on the one hand in the process of shaving about the problem of chafe, and blade seamed edge stability will be subjected to more and more littler blade seamed edge angle negative influence on the other hand, and then be subjected to negative influence service life.
Summary of the invention
From then on the task of the present invention of setting out is, realizes a kind of improved bottom tool, and the cutting head and the dry type razors that are modified by this bottom tool, and they can avoid the shortcoming of prior art, and with advantageous manner the latter are further improved.Particularly should realize a kind of bottom tool, it has the very little good cutting of cutting force and then has good drawing property, reduces the blade seamed edge stability and the cost in service life and needn't pay for this reason.
This task by bottom tool according to the present invention, comprise the cutting head of this bottom tool and comprise that the dry type razors of this cutting head solves.Bottom tool according to the present invention is used for the cutting head that being equipped with of dry type razors fixed a cutting tool, described bottom tool has at least one blade, described blade has at least one sword, described sword points at least one direction of motion of described blade, it is characterized in that, described sword sequentially has at least two blade sections along the direction of motion, described blade section has different cutting angles, at least one second blade section with second less cutting angle is followed after having the first blade section at first cutting angle along the direction of motion, and has along the length of the direction of motion less than 50 μ m along the described first blade section of the direction of motion.Preferable configuration mode of the present invention is the content of dependent claims.
Here will advise also that no longer for sword provides traditional wedge-shaped design, only two planes that have a down dip with the acute angle form define the sword profile in traditional wedge-shaped design.According to the present invention, this sword has at least two blade sections that have different cutting angles along direction of motion order.In other words by the cutting angle of variation, can between to the requirement that runs in the opposite direction of cutting ability and seamed edge stability, obtain a kind of optimal compromise by the classification of one or more cutting angles.Blade section with the lower cutting angle of more blunt sharp-pointed in other words degree has caused desired sword stability and has made contributions for the long life at this.In contrast, the one or more blade sections that are provided with wedge angle more reduce cutting force, so that can realize the more low-yield absorption of better drawing property, razors and lower vibration risk of interference in the oscillatory type cutting system.
Especially, after the first blade section, follow the second blade section that at least one has more sharp-pointed cutting angle along direction of motion observation with the lower cutting angle of more blunt sharp-pointed in other words degree.The incision of each beard also can be finished by the lower blade section of sharp-pointed degree, can finish by the second blade section with sharper keen cutting angle and cut off.Realize very low cutting force in blade section in shearing that sharp-pointed degree is the lower mode formerly of arranging, it is wonderful absurd in other words appearing to regard to this task.And can see be, the operation more blunt sharp-pointed in other words lower blade section of degree has formerly obviously improved the deformation resistance of sword, wherein can keep cutting force low by more sharp-pointed second (perhaps also having other) the blade section of following in the back operation simultaneously.Between deformation resistance and cutting ability, realized a kind of extraordinary compromise along the cutting angle that direction of motion shear direction observation in other words reduces gradually.
According to improvement embodiment of the present invention, the blade section always has to wedge shape straight substantially wedge shape flank ground and constitutes.Therewith correspondingly, sword constitutes with hierarchical form about the cutting angle, and sword has self constant cutting angle respectively under the wedge shape flank situation of smooth enforcement.Yet select else according to the present invention and possible to be, be at least the blade section and at least one side of cutting wedge, provide convex or recessed profile, so that the cutting angle slightly changes (tangent line of measuring each cutting angle on which point is depended in described variation) in each blade section, yet wherein, as a whole, preferably, still satisfy the geometrical relationship mentioned and also can mention about the cutting angle of blade section.
On the one hand in order to realize high deformation resistance on the other hand in order fully to reduce cutting force, if the cutting angle of the first blade section is favourable than at least 10 ° greatly at the cutting angle of the blade section of following.
Particularly advantageous is that in the constituted mode that sword totally comes to a point with the acute angle form, a plurality of blade sections that order is installed are furnished with the cutting angle classification.In improved procedure of the present invention, the blade section has cutting angle less than 90 °, preferred even less than 65 ° respectively.Though at least one blade section, the blade section especially the time formerly moved in cutting provide the right angle profile also is feasible in principle.It is preferred that yet all blade section acute angle forms constitute, and this is because the cutting ability with little cutting force that can realize whereby significantly improving, and wherein, as long as formerly the blade Duan Wei of operation is configured so that too for a short time, so just can obtain high deformation resistance.
According to a preferred embodiment of the present invention, formerly Yun Hang the first blade section has 45 °+/-15 ° cutting angle, is approximately 45 ° especially.The blade section of following preferably has 25 °+/-5 ° cutting angle, particularly is approximately 25 °.
In principle, the length of sword is observed along the direction of motion and can be evenly distributed on these blade sections, so that the blade section is approximately same long.Yet preferably, these blade sections are observed along shear direction in other words along the direction of motion and are had different length.
According to a preferred embodiment of the present invention, sword can be assigned to two blade sections.
In advantageous embodiment embodiment of the present invention, another blade section with less cutting angle is so closely followed the first blade section, so that the described first blade section only implements to cut beard, and this sword is deep in this beard by the more sharp-pointed blade section of following, and after this beard is just blocked fully.Particularly, the first blade section is constituted as along direction of motion observation shorter than the general diameter of beard, and they are generally speaking between 50 μ m to 120 μ m.A preferred embodiment of the invention, the length of the first blade section along the direction of motion less than 50 μ m, preferably less than 25 μ m.In preferred improved procedure of the present invention, the length of the first blade section is between 1 μ m to 20 μ m, especially greater than being 5 μ m.
In contrast, it can be greater than 20 μ m that the length of the blade section of following is observed along the direction of motion, and preferably surpasses 50 μ m.It on the whole even can be greater than 100 μ m.
For though sword is totally still realized shaving of protection skin with acute angle form, sharp-pointed formation; in improved procedure of the present invention, be set to; sword is downward-sloping with respect to blade top side (it is fixing a cutting tool in the face of cutting head usually); that is to say that the sword top side stretches in the mode that tilts, so that blade seamed edge is originally installed lowlyer than the largest portion of blade top side.Preferably, at least the first blade section is so downward-sloping.Can certainly be that a plurality of blade sections are downward-sloping.This inclination constituted mode of sword at first will further be supported the deformation resistance and the service life of the sword be devoted to, and this is because the downward-sloping part of sword not directly by the shave of fixing a cutting tool, reduces so that realized wearing and tearing.On the other hand, the downward-sloping constituted mode of sword is being particularly advantageous aspect protection the shaving of skin.As long as skin to be shaved protrudes in the shear openings of fixing a cutting tool, described skin does not protrude into and can be caught by downward-sloping blade seamed edge at once, and described in other words skin protrudes into can be by extruding from the shear openings of fixing a cutting tool once more with respect to the blade top side of blade seamed edge projection.
In principle, sword can be downward-sloping with varying strength.According to a preferred embodiment of the present invention, sword is downward-sloping with one or more inclination angle, and the inclination angle is approximately 0.5 ° to 45 °, is preferably 1 ° to 20 °.In advantageous embodiment embodiment of the present invention, sword can with about 5 ° downward-sloping.For these inclination angles preferably, α
I+1＜α
i(i=1 ... n-1) set up; Particularly, all inclination alpha
1To α
nBe in 0.5 ° to 45 ° the scope.
In improvement embodiment of the present invention, in the peak of blade top side and the difference in height between the blade seamed edge on the first blade section greatly between 1 μ m to 20 μ m, preferably less than 10 μ m.
According to the operation logic of cutting head, the blade of at least one bottom tool can be constituted as bilateral sharp or one-sided sharp.Under rotary bottom tool situation a sword can be set, and under vibration drive-type bottom tool situation two mutual opposed swords be set on blade preferably, so that a sword plays a role when feed motion, opposed sword plays a role when drawback movement.
Certainly, bottom tool can have a plurality of blades, these blades layout that preferably is parallel to each other, and approximately to be orientated transverse to the mode of the direction of motion basically.Bottom tool can be constructed to the form of set of blades.
If for one or more bottom tools the vibration drive unit is set, it is linear oscillating that then described drive unit especially can be constituted as.Yet certainly, as described, one or more bottom tools also can be applied to cutting head or dry type razors, and they are provided for the rotating driving device of bottom tool.
A kind of can being set to by the cheap especially embodiment of making, bottom tool is formed by the moulding plate, wherein can make according to the mode of etching technics according at least one blade section of optimal way blade.Be set in a favourable embodiment of the present invention, described bottom tool (4) and/or described at least sword (11) can be by the electric chemical formula etchings, by punching press, by grinding, make by sintering or by injection moulding.
If blade to small part is provided with wear-resistant protective layer, about service time of bottom tool be particularly advantageous.
Description of drawings
Other target of the present invention, advantage, feature and application possibility are provided by the description of following embodiment.Feature all descriptions here and/or illustrated, himself or combination and subordinate combination arbitrarily, even with claim or irrelevant to the central idea of the present invention in the reviewing of claim, also all form content of the present invention.
In the drawings:
Fig. 1 illustrates the perspective disassembled view of dry type razors;
Fig. 2 illustrates the side view according to the single shearing elements of bottom tool of the present invention according to the dry type razors cutting head of one embodiment of the present invention;
Fig. 3 illustrates the cutaway view of the lines A-A that the shearing elements among Fig. 2 provides along Fig. 2;
Fig. 4 illustrates the cross-sectional view of the blade of bottom tool along the lines B-B of Fig. 3; And
Fig. 5 illustrates another embodiment according to blade of the present invention.
The specific embodiment
Fig. 1 illustrates the principles of construction of dry type razors.This dry type razors is made up of housing 1, and housing 1 wherein is used to hold electro-motor and the possible battery that is used for stored energy, and is provided with console switch 2.At the top end face, the driving element 3 that drives with mode of oscillation protrudes in housing 1.The bottom tool of being made up of two shearing elements 5 in illustrated embodiment 4 has connecting pin 6, and connecting pin 6 can be arranged in the conjugation with driving element 3, especially can navigate in the conjugation with it.In this way, just can drive two shearing elements 5 that are parallel to each other and arrange with mode of oscillation along vertical extension of the shearing elements of double-head arrow 16 indications.
Fix a cutting tool and 7 surround or cover bottom tool 4, fix a cutting tool 7 by replaceable framework with shear thin layer 9 and combine to small part, described replaceable framework can with housing 1 location, and described shearing thin layer 9 is fixed on the replaceable framework 8.Shear thin layer 9 and be installed with a plurality of openings that penetrate on the surface, they may be implemented as hole and/or seam, and the hair that will be shaved in the process of shaving will penetrate opening by these and enter into cutting head.Based on the blade seamed edge that on blade seamed edge that constitutes on the through hole of shearing thin layer and shearing elements 5, constitutes at bottom tool 4, and based on bottom tool 4 with respect to fixing a cutting tool 7 motion, the hair that enters into cutting head will be cut in other words between these corresponding blade seamed edges to be cut off.
Fig. 2 illustrates the shearing elements 5 of bottom tool 4 with detail view, one of them then one (being mode in illustrated embodiment) to be parallel to each other be furnished with a plurality of blades 10.As shown in Figure 3, the blade 10 of bottom tool 4 constitutes U-shaped respectively, and wherein, on the free seamed edge of the bar blade 10 that is bent into U, the sword 11 curved extensions of arranging respectively on the opposite side of each blade 10 also deviate from mutually.Bar shaped fixed part 12 along the direction of motion of bottom tool 4 orientation makes shearing elements 5 can be fixed on the fastener, can build up to the connection of drive unit by described fastener.
As shown in Figure 4, the opposed sword 11 of each blade 10 is downward-sloping with respect to blade top side 13.The blade top side 13 of stretching between two mutual opposed swords 11 has lug boss 14 placed in the middle at this, lug boss 14 placed in the middle flatly constitutes in illustrated embodiment and defines contact plane 0, and each blade 10 slides along contact plane 0 along 7 the downside of fixing a cutting tool.Outer inclined-plane 15 is connected on the lug boss 14 placed in the middle, and towards the direction of lug boss 14 placed in the middle, rising with inclination angle a in the top side of phase blade, that is to say according to Fig. 4 and rise towards the top from the blade seamed edge 17s of sword 11 on outer inclined-plane 15.So-called inclination angle a preferably approximately between 1 ° to 20 °, is approximately 5 ° especially between 0.5 ° to 30 °.Blade top side 13 projections 14 and the difference in height D between the blade seamed edge 17 shown in Figure 4 are preferably between 1 μ m to the 20 μ m.If it is selected too much, the danger that so just exists hair between bottom tool and shearing thin layer, to be drawn into, hair is not sheared so thus, but will only be stuck and/or streak.If it is selecteed too small, will produce the danger of chafe.
As shown in Figure 4, the sword 11 of blade 10 has the cutting angle classification.Along the shear direction 16 that moves in other words observe the corresponding position first blade sections 18 forwardly have less than 90 °, be preferably 45 °+/-15 ° cutting angle
On the described first blade section 18, be respectively arranged with blade seamed edge 17.Observe along the direction of motion, this cutting angle reduces on blade towards the rear.The second blade section 19 of following operation in shearing after the described first blade section 18 has the cutting angle
The cutting angle
Less than first cutting angle
Constitute and be 25 °+/-5 ° in a preferred embodiment of this invention.
The first blade section 18 that causes incision along the direction of motion with length ε
1Extend (referring to Fig. 4) length ε
1Preferably less than 50 μ m, and be between 1 μ m to the 20 μ m in preferable configuration mode of the present invention.
In according to embodiment shown in Figure 4, the cutting angle classification is arranged on the downside of sword 11, and it deviates from usually fixes a cutting tool 7.In illustrated embodiment, these two blade sections 18 and 19 have to wedge shape straight wedge shape flank ground respectively and constitute at this, and wherein this just in time is a cross section profile shown in Figure 4.Certainly, by the design of blade overall U-shaped, described wedge shape flank also can be encircleed into U-shaped according to the arc mode.By the cutting angle classification between two blade sections 18 and 19, obtained the so-called second blade seamed edge 20 at the downside of sword 11, referring to Fig. 4.
The blade seamed edge 17 of sword 11 can be come rounding with very low degree according to advantageous manner, and wherein the seamed edge radius R on blade seamed edge 17 advantageously can be for 2 μ m or still less, and is preferred even can be less than 1 μ m.
The whole seamed edge of sword 11 protrude E (promptly cutting the extension of wedge) along the direction of motion 16 according to advantageous manner for greater than 50 μ m, most possible even be 100 μ m or more, referring to Fig. 4.Therefore just can guarantee that the cutting wedge can be deep in the hair fully, simultaneously it is blocked.
Fig. 5 illustrates the cross section of blade along the lines B-B of Fig. 3 equally, and wherein with respect to the embodiment according to Fig. 4, present embodiment has an additional inclination alpha
2With other cutting angle
At corresponding geometry each other, the corresponding Reference numeral of Fig. 4 will be continued on for key diagram 5.Still the blade 10 that constitutes about the center line symmetry has blade top side 13, and blade top side 13 also has lug boss 14 placed in the middle, yet blade top side 13 was both downward-sloping also downward-sloping at K2 at seamed edge K1.Blade top side 13 is with respect to contact plane 0, in the zone between seamed edge K2 and K1 with angle [alpha]
2Downward-sloping, meanwhile zone from seamed edge K1 to blade seamed edge 17 with respect to contact plane 0 inclination angle with tilt angle alpha
1Downward-sloping.α here
1Greater than α
2Compare with the embodiment according to Fig. 4, it is ε that the opposed sword 11 of blade 10 not only has length
1The first blade section 18 and length be ε
2The second blade section 19, in addition its also to have length be ε
3The 3rd blade section 21.This is so to realize, that is: on the downside of seamed edge K3 with the angle of wedge
Generate another angle of wedge classification.Satisfy ε here,
1Greater than ε
2, ε
2Greater than ε
3By arranging additional inclined angle alpha and/or cutting angle
The cutting ability of bottom tool just can optimally be matched with required standard, promptly is matched with the deformation resistance of blade seamed edge and is matched with the cutting force that is occurred on the other hand on the one hand, wherein is noted that applied cutting angle
And/or the quantity of inclined angle alpha is not to be limited to two or three as embodiment is illustrated, as long as but can form at least two cutting angles, so just can select this quantity arbitrarily.
Claims (29)
1. bottom tool, described bottom tool is used for the fix a cutting tool cutting head of (7) of being equipped with of dry type razors, described bottom tool has at least one blade (10), described blade (10) has at least one sword (11), described sword (11) points at least one direction of motion (16) of described blade (10), it is characterized in that, described sword (11) sequentially has at least two blade sections (18,19,21) along the direction of motion, and described at least two blade sections (18,19,21) have different cutting angles
N is integer and n 〉=2, has the second less cutting angle
The second blade section (19) follow along the direction of motion (16) and have first cutting angle
The first blade section (18) afterwards, and have along the length (ε of the direction of motion (16) less than 50 μ m along the described first blade section (18) of the direction of motion (16)
1).
2. bottom tool according to claim 1 is characterized in that, in the described second blade section (19) afterwards, follows other the blade section with other cutting angle, wherein, and for all cutting angles
, satisfy:
3. bottom tool according to claim 2, wherein, cutting angle formerly
Than follow after the cutting angle
At least 10 ° greatly.
4. according to the described bottom tool of one of claim 1-3, wherein, the described cutting angle of described blade section (18,19,21)
Be constituted as respectively less than 90 °.
5. bottom tool according to claim 4, wherein, the described cutting angle of described blade section (18,19,21)
Be constituted as respectively less than 65 °.
6. bottom tool according to claim 1, wherein, first cutting angle is that 45 °+/-15 ° and/or second cutting angle are 25 °+/-5 °.
7. bottom tool according to claim 1, wherein, described blade section (18,19,21) constitutes with approximate wedge shape respectively, and they have wedge shape flank straight, protruding or recessed in vertical section (B-B).
8. bottom tool according to claim 1, wherein, described blade section (18,19,21) has along the different length (ε of the direction of motion (16) observation place
1, ε
2... ε
n).
9. bottom tool according to claim 1 wherein, has along the length (ε of the direction of motion (16) less than 25 μ m along the described first blade section (18) of the direction of motion (16)
1).
10. bottom tool according to claim 9, wherein, the described length (ε of the described first blade section (18)
1) be approximately 5 μ m.
11. bottom tool according to claim 1, wherein, all blade sections along the total length (E) of the direction of motion (16) greater than 50 μ m.
12. bottom tool according to claim 11, wherein, all blade sections along the total length (E) of the direction of motion (16) greater than 100 μ m.
13. bottom tool according to claim 1, wherein, described sword (11) dips down with respect to the blade top side (13) of facing described fixing a cutting tool (7) usually and tiltedly constitutes.
14. bottom tool according to claim 13, wherein, described sword (11) is downward-sloping with respect to described blade top side (13) with one or more inclination alpha.
15. bottom tool according to claim 14 wherein, always satisfies: α
I+1＜α
i, wherein, i=1 ... n-1.
16. bottom tool according to claim 15, wherein, all inclination alpha
1To α
nAll be in 0.5 ° to 45 ° the scope.
17. according to claim 15 or 16 described bottom tools, wherein, the difference in height (D) between the blade seamed edge (17) of the peak of described blade top side and described sword (11) is between 1 μ m to 20 μ m.
18. bottom tool according to claim 17, wherein, described difference in height (D) is less than 10 μ m.
19. bottom tool according to claim 1, wherein, described blade (10) has two mutual opposed swords (11).
20. bottom tool according to claim 1 wherein, is provided with a plurality of blades (10), they are arranged in the mode that is parallel to each other.
21. bottom tool according to claim 1, wherein, described bottom tool (4) is formed by the moulding plate.
22. bottom tool according to claim 1, wherein, described bottom tool (4) and/or described at least sword (11) can be made by etching.
23. bottom tool according to claim 1 is characterized in that, described bottom tool (4) and/or described at least sword (11) can be by chemical etchings, by punching press, by grinding, make by sintering, electroforming or by injection moulding.
24. bottom tool according to claim 1, wherein, described blade (10) to small part is provided with wear-resistant protective layer.
25. the cutting head of a dry type razors, described cutting head have at least one according to the described bottom tool of one of aforementioned claim (4).
26. a dry type razors, it has according to the described cutting head of last claim.
27. dry type razors according to claim 26, wherein, described bottom tool (4) can drive with rotating manner.
28. dry type razors according to claim 26, wherein, described bottom tool (4) can drive with mode of oscillation.
29. dry type razors according to claim 26, wherein, described bottom tool (4) can drive in the linear oscillating mode.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006023774.9 | 2006-05-20 | ||
| DE102006023774A DE102006023774A1 (en) | 2006-05-20 | 2006-05-20 | Undercutter for a dry razor shaving head |
| PCT/EP2007/003150 WO2007134672A1 (en) | 2006-05-20 | 2007-04-07 | Lower cutter for a shaving head of an electric razor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101448610A CN101448610A (en) | 2009-06-03 |
| CN101448610B true CN101448610B (en) | 2011-11-30 |
Family
ID=38180454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800184427A Active CN101448610B (en) | 2006-05-20 | 2007-04-07 | Lower cutter for a shaving head of an electric razor |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2021153B1 (en) |
| JP (1) | JP5242559B2 (en) |
| CN (1) | CN101448610B (en) |
| AT (1) | ATE551160T1 (en) |
| DE (1) | DE102006023774A1 (en) |
| RU (1) | RU2434738C2 (en) |
| WO (1) | WO2007134672A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005036383A1 (en) * | 2005-07-29 | 2007-02-01 | Braun Gmbh | Shaving head for an electric shaver comprises a blade with an outer delimiting section facing an upper blade which is raised opposite the cutting edge |
| DE102008027224A1 (en) * | 2008-06-06 | 2009-12-10 | Braun Gmbh | Undercutter for the shaving head of a dry shaver |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2238813A (en) | 1940-03-30 | 1941-04-15 | Jacob L Kleinman | Razor |
| FR989663A (en) | 1944-02-24 | 1951-09-12 | Dry shaving device | |
| JPS5341590B2 (en) * | 1971-09-22 | 1978-11-04 | ||
| JPS5547879A (en) * | 1978-09-30 | 1980-04-05 | Matsushita Electric Works Ltd | Electric razor |
| NL7811437A (en) * | 1978-11-21 | 1980-05-23 | Philips Nv | SHAVER. |
| DE2857601C2 (en) * | 1978-12-07 | 1982-01-14 | Philips Patentverwaltung Gmbh, 2000 Hamburg | "Shear knife for a dry shaver with a pre-knife serving as a hair pulling element" |
| DE3047888A1 (en) * | 1980-12-19 | 1982-07-15 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Cutting tools, esp. razor blades - where CVD activated by plasma is used to coat tool with carbon possessing structure similar to diamond |
| GB2226972A (en) * | 1989-01-17 | 1990-07-18 | Rong Fang Yu | Blade device for an electric shaver |
| DE4423503C1 (en) | 1994-07-05 | 1995-04-20 | Braun Ag | Bottom blade for a dry shaver apparatus |
| DE69610576T2 (en) | 1995-05-19 | 2001-05-31 | Matsushita Electric Works Ltd | Electric shaver cutting unit |
| WO2001089775A1 (en) * | 2000-05-23 | 2001-11-29 | Koninklijke Philips Electronics N.V. | Shaving apparatus |
| WO2003016000A1 (en) * | 2001-08-10 | 2003-02-27 | Matsushita Electric Works, Ltd. | Electric razor inner blade unit |
| WO2003022535A1 (en) * | 2001-09-10 | 2003-03-20 | Matsushita Electric Works, Ltd. | Method of manufacturing inner blade for electric razor |
| JP4032808B2 (en) * | 2002-04-19 | 2008-01-16 | 松下電工株式会社 | Hair clipper blade manufacturing method |
| JP4024715B2 (en) * | 2003-05-12 | 2007-12-19 | 九州日立マクセル株式会社 | Electric razor |
| JP2005168631A (en) * | 2003-12-09 | 2005-06-30 | Izumi Products Co | Reciprocating electric razor |
-
2006
- 2006-05-20 DE DE102006023774A patent/DE102006023774A1/en not_active Withdrawn
-
2007
- 2007-04-07 AT AT07724091T patent/ATE551160T1/en active
- 2007-04-07 RU RU2008145761/02A patent/RU2434738C2/en not_active IP Right Cessation
- 2007-04-07 EP EP07724091A patent/EP2021153B1/en active Active
- 2007-04-07 WO PCT/EP2007/003150 patent/WO2007134672A1/en active Application Filing
- 2007-04-07 JP JP2009510301A patent/JP5242559B2/en active Active
- 2007-04-07 CN CN2007800184427A patent/CN101448610B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP5242559B2 (en) | 2013-07-24 |
| ATE551160T1 (en) | 2012-04-15 |
| EP2021153B1 (en) | 2012-03-28 |
| CN101448610A (en) | 2009-06-03 |
| WO2007134672A8 (en) | 2008-11-13 |
| DE102006023774A1 (en) | 2007-11-22 |
| EP2021153A1 (en) | 2009-02-11 |
| RU2008145761A (en) | 2010-05-27 |
| RU2434738C2 (en) | 2011-11-27 |
| JP2009537189A (en) | 2009-10-29 |
| WO2007134672A1 (en) | 2007-11-29 |
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