CN103042541A - A cutting system for a hair cutter and a corresponding cutter - Google Patents
A cutting system for a hair cutter and a corresponding cutter Download PDFInfo
- Publication number
- CN103042541A CN103042541A CN2011103819251A CN201110381925A CN103042541A CN 103042541 A CN103042541 A CN 103042541A CN 2011103819251 A CN2011103819251 A CN 2011103819251A CN 201110381925 A CN201110381925 A CN 201110381925A CN 103042541 A CN103042541 A CN 103042541A
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- CN
- China
- Prior art keywords
- cutting
- tooth
- length
- movable blades
- mentioned
- 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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- 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
- B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
- B26B19/3846—Blades; Cutters
Abstract
The present invention relates to a cutting system for hair clippers, said invention comprising a mobile blade and a fixed blade, characterised in that, during use, said mobile blade moves back and forth with force F, said mobile blade comprising N number of teeth of varying lengths (x) and (y) and presenting two lead angles alpha and beta, the relationship between the two lengths and the lead angles being defined in the following manner: - the x/y ratio is within the range of 1.33 to 6; - the beta/alpha ratio is within the range of 1.2 to 3.33; where - alpha is within the range of 9 DEG to 15 DEG ; where beta is within the range of 18 DEG to 32 DEG .
Description
Technical field
The present invention relates to the system of cutting of cutting for the hair trimmer.The present invention relates more particularly to movable blades, and described movable blades comprises a plurality of teeth with differing heights and different angles of attack.
Background technology
From now on, the hair trimmer all uses by public use with by the hairdresser equally.Yet the trimmer used of haircut professional person is more powerful because itself or be directly connected in the 230V electrical network, the battery of great power perhaps is equipped with, to allow to use to produce hair is almost vertically cut the cutter of cutting.The trimmer of the type comprises the movable blades with dark (length) tooth, described tooth aspect the hair angle of attack without undergoing any restriction, because very strong couple is available.
The obvious power of popular trimmer is less and should coordinate with the hair angle of attack (open angle of tooth), and therefore coordinates with pruning ability and available horsepower.This compromise especially shows as the configuration of the tooth on the movable blades, and the geometry of tooth is adjusted in this constraint.For obtaining the good ability of cutting of cutting, should open the open angle of (increase) tooth, but for keeping enough numbers of tooth, the slit should be more shallow, this does not allow to cut with a small amount of time cuts a lot of hairs.
In addition, manufacturer seeks the manufacture method of some optimizations at present, providing cost lower product as masses.In these methods, etching, namely english terminology " etching " has significant advantage, as long as pending blade is enough thin.
The method of " etching " is: at steel blade impression one polymeric layer or protection wax layer, then by this blade of acid treatment, in order to produce recessed sky at not protected position.The position that is not corroded consists of the tooth of blade.
Therefore in the face of two kinds of constraints: the first constraint is that the limited power of " masses " trimmer and the second constraint are the relatively limited thickness for the movable blades that can implement chemical erosion (" etching ").Limited thickness, refer to less than one millimeter, preferably less than 0.5 millimeter size.
Therefore, little thickness and the limited power of blade not only requires enough large hair angles of attack of " guillotine (guillotine) " type, also requires short tooth, because thin and long tooth is because the little thickness of blade and the trend of fracture will be arranged.
On the other hand, need tooth that certain degree of depth (length) is arranged, in order to do not hinder the pruning ability.
The optimization problem of cutting the system of cutting of trimmer is studied mistake in the prior art.Document FR 2,398 584, US 2006/0156549, GB 2 435 845 and DE 10 2,009 035 232 A1 especially should study the representative of type, although these documents are not the optimization of cutting the system of cutting to this " masses " trimmer of being devoted to such as optimization mentioned in present patent application.
Summary of the invention
The purpose of this invention is to provide the system of cutting of cutting through optimizing for " masses " trimmer.This optimization is cut performance for cutting of the restriction with relatively limited power and simultaneously for reducing manufacturing cost by the thin blade of " etching " manufacturing by using.
More particularly, the present invention is intended to: establish being used for the feasible geometry of thin blade of " masses " trimmer; And, for an ad hoc base of the present invention, establish movable blades tooth geometry be used for pruning exert oneself between relation.
Principal character key element of the present invention
The present invention openly is used for the system of cutting of cutting of hair trimmer, the described system of cutting of cutting comprises movable blades and fixed blade, described movable blades is in use mobile with power F back and forth movement ground, the described system of cutting of cutting is characterised in that, described movable blades comprises that the number of teeth is the tooth of N, these teeth have two different length x and y and have two angle of attack α and β, and the relation between these two length and the described angle of attack is determined as follows:
-x/y is than between 1.33 to 6;
-beta/alpha is than between 1.2 to 3.55;
Wherein
-α is between 9 ° to 15 °;
-β is between 18 ° to 32 °.
Special embodiments more of the present invention illustrate at least one or the appropriate combination in the following feature:
Preferably, the relation between described two length and the described angle of attack is:
-x/y is than between 1.5 to 3;
-beta/alpha is than between 1.42 to 2.8;
Wherein
-α is between 10 ° to 14 °;
-β is between 20 ° to 28 °.
Preferably, the relation between described two length and the described angle of attack is:
-x/y is than between 1.54 to 2.6;
-beta/alpha is than between 1.61 to 2.36;
Wherein
-α is between 11 ° to 13 °;
-β is between 20 ° to 24 °.
The number N of teeth that variable x, y and α, β are adjusted on the given movable blades keeps constant.
Length x is constant, and the variable that has only is described length y and described angle α and β.
Preferably, the alpha+beta sum is constant.
Preferably, α=β.
Preferably, x is between between 2 millimeters to 4 millimeters, preferably between 2 millimeters to 3 millimeters, and y is between between 0.3 millimeter to 2 millimeters, preferably between 0.5 millimeter to 1.5 millimeters.
Preferably, F is less than 16 Ns and preferably less than 13 Ns.
Preferably, described blade have less than 1 millimeter, preferably less than 0.8 millimeter, particularly preferably less than 0.6 millimeter thickness.
Description of drawings
Fig. 1 and 2 illustrates the plan view that has large tine length, is provided for the prior art movable blades of high-power trimmer.
Fig. 3 and 4 illustrates the plan view that has less tine length, is provided for the prior art movable blades of " masses " trimmer.
Fig. 5 to 10 illustrates the plan view according to a series of possibility configurations of the part of movable blades of the present invention, wherein, parameter y is changed between 0.5 millimeter to 1.8 millimeters, and make parameter alpha change between 9 ° and 15 ° and parameter beta is changed between 18 ° and 30 °.Other configuration is tested, wherein, except aforementioned parameters, goes back running parameter x.But for the reason of saving accompanying drawing, other configuration is not illustrated.
Figure 11 illustrates by the movable blades measuring method of applied force during the back and forth movement of movable blades in use.
Figure 12 illustrates the three-dimensional detail view of being furnished with according to the trimmer head of movable blades of the present invention.
The specific embodiment
The performance of hair trimmer depends on a plurality of factors, and these factors may be restrictive because available horsepower is little more.
Mode with non-limit can be enumerated: the geometry of movable blades and fixed blade, and especially length and the open angle of tooth, sharpening angle and the number of teeth of tooth make things convenient for the lubricated of back and forth movement, and speed that should motion, the pressure of movable blades on fixed blade etc.
Therefore, the optimization of cutting the system of cutting of hair trimmer is a multi-factor problem.Present patent application is deliberately selected to set about this problem by one of its determinative parameter, and this parameter is exactly the geometry of the tooth on the movable blades.This geometry is determined by the open angle of being combined with the tooth appearance.
The present invention does not consider tooth possible adaptive of the geometry of tooth of fixed blade and movable blades.Therefore think that fixed blade always has the regular tooth of overall triangle, and the length of these teeth slightly surpasses the length of the tooth of movable blades, to avoid causing possible wound at scalp.Yet following narration also can be applicable to fixed blade.
Be half measure best between the open angle that finds available couple and tooth, the tooth of movable blades is configured to obtain having and openly closes that the angle is (angle d ' ouverture ferm é), sufficiently long tooth.The shape that this tooth presents is usually to appear at the long tooth (seeing Fig. 1) that tightens up on the high power trimmer and use so far comprehensive between the short tooth (seeing Fig. 1 and 2) on low power " masses " trimmer in a way.
Only allow to realize having the superfine blade of pointy profile by the method for " etching " manufacturing blade.Yet in this case, tooth is longer, and tooth is just more fragile.In order to overcome this fragility, cut the most advanced and sophisticated of described tooth and it is recessed with obtain having different angles (α, β: see Fig. 3,4 and 5) two most advanced and sophisticated.
The variable of studying in present patent application is length x and y and angle α and β (see photo).The impact at the sharpening angle of movable blades and fixed blade deliberately is left in the basket.Think simply at this, carried out best sharpening, so that allow to be absorbed in other above-mentioned parameter.
The power F that is applied by movable blades measures with dynamometer.The schematic diagram of this measurement illustrates at accompanying drawing 8.
Utilize the trimmer of the different capacity that allows restriction parameter F, x and y and angle α and β to test.For less than the value of 9 ° α with less than the value of 18 ° β, if the ratio of x/y is little, for example less than 1.33, then the number N of teeth of every long measure is more.This situation is similar to the blade that is provided for professional trimmer and needs high-power.In addition, long tooth needs larger blade thickness, and will hinder this class blade use " etching " technology.
For greater than the value of 15 ° α with greater than the value of 32 ° β, if the ratio of x/y is large, for example greater than 6, then the number N of teeth of every long measure is less.This situation does not need high-power, and allows this class blade is used " etching " technology.But the pruning ability of this type blade is relatively limited.
Describe in the above two kinds extreme between, that yes is possible for whole a series of configuration.But definite through overtesting: as for the blade of thickness less than 0.6 millimeter, with regard to the fragility problem of blade, to be difficult the implementation greater than 5 millimeters, the value that is preferably greater than 4 millimeters x.In addition, less than 1 millimeter, preferably the value less than 2 millimeters x in fact is no advantage really, has limited doughtily the ability of cutting of cutting because these are worth.
In target of the present invention is the scope of proposition for the blade of " masses " trimmer, utilize this type trimmer to test.These trimmers can not be given the power that surpasses about 20 Ns (N) at movable blades, and described power is usually even less than 15 Ns.
The most convictive test is illustrated in the following form.Test is schematic simply, and is used for never in any form limiting the scope of the invention.Yet these tests be so that can limit approximately the scope of length of tooth and the scope of the Length Ratio of tooth, and are limited to feasible angle on the thinner movable blades.Below form demonstrate the reasonable combination of the length of open angle by tooth and tooth, even for the power of 16 Ns of the deficiencies of giving at blade, also can obtain the good trimmer of performance.
| Test | X (millimeter) | Y (millimeter) | x/y | α° | β° | β/α | F (ox) | Cut and cut assessment |
| 1 | 2 | 1.5 | 1.33 | 9 | 18 | 2 | 15 | Satisfied |
| 2 | 2.5 | 1 | 2.5 | 13 | 25 | 1.92 | 15 | Very |
| 3 | 3 | 0.5 | 6 | 15 | 32 | 2.13 | 15 | Satisfied |
| 4 | 2 | 1.5 | 1.33 | 9 | 32 | 3.55 | 15 | Satisfied |
| 5 | 3 | 0.5 | 6 | 15 | 18 | 1.2 | 15 | Satisfied |
| 6 | 2.5 | 1.5 | 1.33 | 11 | 20 | 1.81 | 15 | Very |
| 7 | 2.5 | 1 | 2.5 | 12 | 24 | 2 | 15 | Excellent |
| 8 | 2.5 | 1 | 2.5 | 12 | 24 | 2 | 12 | Very |
| 9 | 2.5 | 1 | 2.5 | 11 | 22 | 2 | 12 | Very |
| 10 | 2.6 | 1.1 | 2.36 | 12 | 22 | 1.83 | 12 | Excellent |
| 11 | 2.6 | 1.8 | 1.44 | 9 | 18 | 2 | 12 | Satisfied |
| 12 | 2.6 | 0.5 | 5.2 | 15 | 30 | 2 | 12 | Satisfied |
| 13 | 2.35 | 1.31 | 1.79 | 12.5 | 22 | 1.76 | 12 | Excellent |
Claims (12)
1. the system of cutting of cutting that is used for the hair trimmer, the described system of cutting of cutting comprises movable blades and fixed blade, described movable blades is in use mobile with power F back and forth movement ground, it is characterized in that, described movable blades comprises that the number of teeth is N, different two length x and y is arranged and have the tooth of two angle of attack α and β that the relation between described two length and the described angle of attack is determined as follows:
-x/y is than between 1.33 to 6;
-beta/alpha is than between 1.2 to 3.55;
Wherein
-α is between 9 ° to 15 °;
-β is between 18 ° to 32 °.
2. the system of cutting of cutting as claimed in claim 1 is characterized in that, the relation between described two length and the described angle of attack is:
-x/y is than between 1.5 to 3;
-beta/alpha is than between 1.42 to 2.8;
Wherein
-α is between 10 ° to 14 °;
-β is between 20 ° to 28 °.
3. the system of cutting of cutting as claimed in claim 1 or 2 is characterized in that, the relation between described two length and the described angle of attack is:
-x/y is than between 1.54 to 2.6;
-beta/alpha is than between 1.61 to 2.36;
Wherein
-α is between 11 ° to 13 °;
-β is between 20 ° to 24 °.
4. each described system of cutting of cutting as in the above-mentioned claim is characterized in that variable x, y and α, β are adjusted so that the number N of teeth on the given movable blades keeps constant.
5. such as each described system of cutting of cutting in the above-mentioned claim, it is characterized in that length x is constant; And the variable that has only is length y and described angle of attack α and β.
6. such as each described system of cutting of cutting in the above-mentioned claim, it is characterized in that the alpha+beta sum is constant.
7. such as each described system of cutting of cutting in the above-mentioned claim, it is characterized in that α=β.
8. such as each described system of cutting of cutting in the above-mentioned claim, it is characterized in that x is between 2 millimeters to 4 millimeters, preferably between 2 millimeters to 3 millimeters; And y is between 0.3 millimeter to 2 millimeters, preferably between 0.5 millimeter to 1.5 millimeters.
9. such as each described system of cutting of cutting in the above-mentioned claim, it is characterized in that described power F is less than 16 Ns.
10. such as each described system of cutting of cutting in the above-mentioned claim, it is characterized in that described power F is less than 13 Ns.
11. as each described system of cutting of cutting in the above-mentioned claim, it is characterized in that, described blade have less than 1 millimeter, preferably less than 0.8 millimeter, particularly preferably less than 0.6 millimeter thickness.
12. trimmer, it comprises such as each described system of cutting of cutting in the above-mentioned claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11185443.6 | 2011-10-17 | ||
| EP11185443.6A EP2583798A1 (en) | 2011-10-17 | 2011-10-17 | Cutting system for a hairclipper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103042541A true CN103042541A (en) | 2013-04-17 |
| CN103042541B CN103042541B (en) | 2016-01-27 |
Family
ID=46888420
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110381925.1A Active CN103042541B (en) | 2011-10-17 | 2011-11-28 | The system of cutting is cut for trimmer |
| CN2011204803218U Withdrawn - After Issue CN202540334U (en) | 2011-10-17 | 2011-11-28 | A cutting system for a hair cutter and a corresponding cutter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204803218U Withdrawn - After Issue CN202540334U (en) | 2011-10-17 | 2011-11-28 | A cutting system for a hair cutter and a corresponding cutter |
Country Status (7)
| Country | Link |
|---|---|
| EP (2) | EP2583798A1 (en) |
| KR (1) | KR101945574B1 (en) |
| CN (2) | CN103042541B (en) |
| ES (1) | ES2583432T3 (en) |
| PL (1) | PL2768638T3 (en) |
| RU (1) | RU2598067C2 (en) |
| WO (1) | WO2013056926A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112014010716A2 (en) * | 2011-11-08 | 2017-05-02 | Koninklijke Philips Nv | cutting unit for a haircutting device, production method for producing a movable cutting member, and use of a haircutting device with a cutting unit |
| CN110125990A (en) * | 2018-02-08 | 2019-08-16 | 尚珩科技香港有限公司 | A kind of cutting blade of hair cutter |
| EP3527338A1 (en) | 2018-02-20 | 2019-08-21 | Koninklijke Philips N.V. | Comb for a hair clipper |
| PL3900896T3 (en) * | 2020-04-24 | 2023-07-10 | Wahl Gmbh | Cutting unit with wave-shaped cutting edge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451513A (en) * | 2002-04-19 | 2003-10-29 | 松下电工股份有限公司 | Method for making edge of hairdressing shears |
| CN1756629A (en) * | 2003-03-06 | 2006-04-05 | 吴泰准 | An etching blade of electric shaver |
| DE202006002532U1 (en) * | 2006-02-17 | 2006-04-13 | Chen, Cheng-Hsiang, Xinzhuang | Electric hair cutter has fixed and motor driven movable cutters with three cornered saw teeth having inner recesses |
| CN2772755Y (en) * | 2005-03-18 | 2006-04-19 | 正璿精密实业有限公司 | Haircutting scissors bit with improved edge arrangement |
| CN101861235A (en) * | 2007-11-15 | 2010-10-13 | 瓦尔克利普公司 | Bladeset for a hair cutting apparatus |
| US20110131790A1 (en) * | 2009-12-07 | 2011-06-09 | Po-Hsun Chien | Electromotive hair cutter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5427853A (en) | 1977-07-30 | 1979-03-02 | Matsushita Electric Works Ltd | Hairdressing tool |
| US6073350A (en) * | 1996-08-09 | 2000-06-13 | Wahl Clipper Corporation | Bladeset for hair clippers including blade with hair evacuation configuration |
| GB2435845A (en) | 2006-03-11 | 2007-09-12 | Cheng-Hsiang Chen | Electric hair clipper including blades with hair trapping gaps |
| DE102007023362A1 (en) * | 2007-05-18 | 2008-11-20 | Braun Gmbh | Cutting device for cutting hair |
| DE102009035232B4 (en) | 2009-07-29 | 2014-10-16 | Wahl Gmbh | Cutting set for hair clippers |
-
2011
- 2011-10-17 EP EP11185443.6A patent/EP2583798A1/en not_active Withdrawn
- 2011-11-28 CN CN201110381925.1A patent/CN103042541B/en active Active
- 2011-11-28 CN CN2011204803218U patent/CN202540334U/en not_active Withdrawn - After Issue
-
2012
- 2012-09-14 KR KR1020147013168A patent/KR101945574B1/en active IP Right Grant
- 2012-09-14 WO PCT/EP2012/068143 patent/WO2013056926A1/en active Application Filing
- 2012-09-14 PL PL12761953.4T patent/PL2768638T3/en unknown
- 2012-09-14 RU RU2014119191/02A patent/RU2598067C2/en not_active IP Right Cessation
- 2012-09-14 ES ES12761953.4T patent/ES2583432T3/en active Active
- 2012-09-14 EP EP12761953.4A patent/EP2768638B1/en not_active Not-in-force
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1451513A (en) * | 2002-04-19 | 2003-10-29 | 松下电工股份有限公司 | Method for making edge of hairdressing shears |
| CN1756629A (en) * | 2003-03-06 | 2006-04-05 | 吴泰准 | An etching blade of electric shaver |
| CN2772755Y (en) * | 2005-03-18 | 2006-04-19 | 正璿精密实业有限公司 | Haircutting scissors bit with improved edge arrangement |
| DE202006002532U1 (en) * | 2006-02-17 | 2006-04-13 | Chen, Cheng-Hsiang, Xinzhuang | Electric hair cutter has fixed and motor driven movable cutters with three cornered saw teeth having inner recesses |
| CN101861235A (en) * | 2007-11-15 | 2010-10-13 | 瓦尔克利普公司 | Bladeset for a hair cutting apparatus |
| US20110131790A1 (en) * | 2009-12-07 | 2011-06-09 | Po-Hsun Chien | Electromotive hair cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103042541B (en) | 2016-01-27 |
| EP2768638A1 (en) | 2014-08-27 |
| KR101945574B1 (en) | 2019-02-07 |
| WO2013056926A1 (en) | 2013-04-25 |
| EP2583798A1 (en) | 2013-04-24 |
| ES2583432T3 (en) | 2016-09-20 |
| RU2598067C2 (en) | 2016-09-20 |
| EP2768638B1 (en) | 2016-04-20 |
| PL2768638T3 (en) | 2016-11-30 |
| CN202540334U (en) | 2012-11-21 |
| KR20140082818A (en) | 2014-07-02 |
| RU2014119191A (en) | 2015-11-27 |
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