CN103042541B - The system of cutting is cut for trimmer - Google Patents
The system of cutting is cut for trimmer Download PDFInfo
- Publication number
- CN103042541B CN103042541B CN201110381925.1A CN201110381925A CN103042541B CN 103042541 B CN103042541 B CN 103042541B CN 201110381925 A CN201110381925 A CN 201110381925A CN 103042541 B CN103042541 B CN 103042541B
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- CN
- China
- Prior art keywords
- cutting
- cut
- movable blades
- length
- tooth
- 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
-
- 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 and cut for hair trimmer the system of cutting, the described system of cutting of cutting comprises movable blades and fixed blade, in use described movable blades is mobile with power F back and forth movement, it is characterized in that, described movable blades comprises the number of teeth and is N, has different two length x and y and have the tooth of two angle of attack α and β, and 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 3.33; Wherein α between 9 ° to 15 °, β is between 18 ° to 32 °.
Description
Technical field
The present invention relates to and cut for hair trimmer the system of cutting.The present invention relates more particularly to movable blades, and described movable blades comprises multiple teeth with differing heights and the different angle of attack.
Background technology
From now on, hair trimmer uses by public use with by hairdresser all equally.But the trimmer of haircut professional person is more powerful because itself or be directly connected in 230V electrical network, or be equipped with the battery of great power, to allow to use to produce, the cutter cut almost vertically cut to hair.The trimmer of the type comprises the movable blades with dark (length) tooth, described tooth in 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 the ability of pruning and available horsepower.This compromise especially shows as the configuration of the tooth on movable blades, and the geometry of tooth should be made to adjust in this constraint.For obtaining good cutting the ability of cutting, the open angle of (increase) tooth should be opened, but for keeping enough numbers of tooth, gap should be more shallow, and this does not allow to cut with a small amount of time cuts a lot of hair.
In addition, manufacturer seeks some manufacture methods optimized at present, with the product that cost can be provided lower for 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: in steel blade, impress a polymeric layer or protection wax layer, then by this blade of acid treatment, to produce recessed sky at not protected position.The position be not corroded forms the tooth of blade.
Therefore in the face of two kinds of constraints: the first constraint is that the limited power and second of " masses " trimmer retrains is the relatively limited thickness of movable blades for implementing chemical erosion (" etching ").Limited thickness, refers to and is less than one millimeter, is preferably less than the size of 0.5 millimeter.
Therefore, little thickness and the limited power of blade not only require also to require shorter tooth by the enough large hair angle of attack of " guillotine (guillotine) " type, because thin and long tooth will have the trend of fracture due to the little thickness of blade.
On the other hand, tooth is needed to have certain degree of depth (length), not hinder pruning ability.
The optimization problem of cutting the system of cutting the studied mistake in the prior art of trimmer.The representative of document FR2398584, US2006/0156549, GB2435845 and DE102009035232A1 especially this research type, although these documents are not be devoted to the optimization of cutting the system of cutting to this " masses " trimmer as optimization mentioned in the present patent application.
Summary of the invention
The object of this invention is to provide for " masses " trimmer through optimize cut the system of cutting.This optimization is cut performance for the cutting of restriction with relatively limited power and is reduced manufacturing cost for by using the thin blade that manufactures by " etching " simultaneously.
More particularly, the present invention is intended to: establish the geometry feasible to the thin blade for " masses " trimmer; And, for an ad hoc base of the present invention, establish the tooth of movable blades geometry and for prune firmly between relation.
Main characteristic feature of the present invention
The present invention is open cuts for hair trimmer the system of cutting, 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, described feature of cutting the system of cutting is, described movable blades comprises the tooth that the number of teeth is 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 appropriate combination in following features:
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 °.
Variable x, y and α, β number N of teeth be adjusted on a given movable blades keeps constant.
Length x is constant, and the variable had only is described length y and described angle α and β.
Preferably, alpha+beta sum is constant.
Preferably, α=β.
Preferably, 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.
Preferably, F is less than 16 Ns and be preferably less than 13 Ns.
Preferably, described blade have be less than 1 millimeter, be preferably less than 0.8 millimeter, be particularly preferably less than the thickness of 0.6 millimeter.
Accompanying drawing explanation
Fig. 1 and 2 illustrates the plan view having large tine length, arrange the prior art movable blades for high-power trimmer.
Fig. 3 and 4 illustrates the plan view having less tine length, arrange the prior art movable blades for " masses " trimmer.
Fig. 5 to 10 illustrates the plan view of a series of possibility configurations of the part according to movable blades of the present invention, wherein, parameter y is changed between 0.5 millimeter to 1.8 millimeters, and parameter alpha is changed between 9 ° and 15 ° and parameter beta is changed between 18 ° and 30 °.Other configuration is tested, wherein, except aforementioned parameters, and also running parameter x.But for the reason of saving accompanying drawing, other configuration is not illustrated.
Figure 11 illustrates by the movable blades in use measuring method of applied force during the back and forth movement of movable blades.
Figure 12 illustrates the three-dimensional detail view of the trimmer head be furnished with according to movable blades of the present invention.
Detailed description of the invention
The performance of hair trimmer depends on multiple factor, and these factors may be restrictive more because available horsepower is little.
Can enumerate in the mode of exhaustive: the geometry of movable blades and fixed blade, and the especially length of tooth and open angle, the sharpening angle of tooth and the number of teeth, facilitate the lubrication of back and forth movement, and the speed of this motion, the pressure etc. of movable blades on fixed blade.
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 movable blades.This geometry is determined by the open angle be combined with tooth appearance.
The present invention does not consider that the possibility of the geometry of the tooth of fixed blade and the tooth of movable blades is adaptive.Therefore think, fixed blade always has the regular tooth of overall triangular shape, and the length of these teeth slightly exceedes the length of the tooth of movable blades, to avoid causing possible wound on scalp.But describing below also can be applicable to fixed blade.
For finding half measure best between available couple and the open angle of tooth, the tooth of movable blades is configured to obtain to have and openly closes angle (angled ' ouvertureferm é), sufficiently long tooth.The shape that this tooth presents is comprehensive between the long tooth (see Fig. 1) tightened up and the short tooth (see Fig. 1 and 2) be used in so far on low power " masses " trimmer usually appeared on high power trimmer in a way.
The method being manufactured blade by " etching " only allows the superfine blade realizing having pointy profile.But in this case, tooth is longer, and tooth is more fragile.In order to overcome this fragility, cut the tip of described tooth and it is recessed to obtain having the two most advanced and sophisticated of different angle (α, β: see Fig. 3,4 and 5).
The variable studied in the 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 is deliberately left in the basket.Think simply at this, carried out best sharpening, make to allow to be absorbed in other above-mentioned parameter.
The power F dynamometer applied by movable blades is measured.The schematic diagram of this measurement illustrates on accompanying drawing 8.
Utilize and allow the trimmer of the different capacity limiting parameter F, x and y and angle α and β to test.For be less than 9 ° α value and be less than the value of β of 18 °, if the ratio of x/y is little, such as, be less than 1.33, then the number N of teeth of every long measure is more.This situation be similar to arrange for professional trimmer blade and need high-power.In addition, longer tooth needs larger blade thickness, and obstruction is used " etching " technology to this kind of blade.
For be greater than 15 ° α value and be greater than the value of β of 32 °, if the ratio of x/y is large, such as, be greater than 6, then the number N of teeth of every long measure is less.This situation does not need high-power, and allows to use " etching " technology to this kind of blade.But the pruning ability of this type blade is relatively limited.
Above-described two kinds extreme between, that yes is possible for whole a series of configuration.But being through test to determine: blade thickness being less than to 0.6 millimeter, with regard to the fragility problem of blade, being greater than 5 millimeters, being preferably greater than the value of the x of 4 millimeters is more difficult implementation.In addition, be less than 1 millimeter, the value of x that is preferably less than 2 millimeters is in fact no advantage, really because these values are crossed to limit by force cut the ability of cutting.
Propose, in scope for the blade of " masses " trimmer, to utilize this type trimmer to test in target of the present invention.These trimmers can not give the power exceeding about 20 Ns (N) on movable blades, and described power is even less than 15 Ns usually.
The most convictive test illustrates in form below.Test is schematic simply, and is used for never in any form limiting the scope of the invention.But these tests make the scope that can limit the scope of the length of tooth and the length ratio of tooth approximately, and are limited to feasible angle on thinner movable blades.Form below demonstrates the reasonable combination by the open angle of tooth and the length of tooth, even if for the power less than 16 Ns of giving on blade, also can obtain the trimmer of excellent 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 | Good |
| 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 | Good |
| 7 | 2.5 | 1 | 2.5 | 12 | 24 | 2 | 15 | Excellent |
| 8 | 2.5 | 1 | 2.5 | 12 | 24 | 2 | 12 | Good |
| 9 | 2.5 | 1 | 2.5 | 11 | 22 | 2 | 12 | Good |
| 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 (15)
1. cut for hair trimmer the system of cutting, 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, it is characterized in that, described movable blades comprises the number of teeth and is N, has different two length x and y and have the tooth of two angle of attack α and β, and 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. cut the system of cutting as claimed in claim 1, it 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. cut the system of cutting as claimed in claim 1 or 2, it 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. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, variable x, y and α, β are adjusted so that the number N of teeth on a given movable blades keeps constant.
5. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, length x is constant; Further, the variable had only is length y and the described angle of attack α and β.
6. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, alpha+beta sum is constant.
7. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, α=β.
8. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, x is between 2 millimeters to 4 millimeters; Further, y is between 0.3 millimeter to 2 millimeters.
9. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, x is between 2 millimeters to 3 millimeters; Further, y is between 0.5 millimeter to 1.5 millimeters.
10. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, described power F is less than 16 Ns.
11. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, described power F is less than 13 Ns.
12. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, described movable blades and fixed blade have the thickness being less than 1 millimeter.
13. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, described movable blades and fixed blade have the thickness being less than 0.8 millimeter.
14. cut the system of cutting as claimed in claim 1 or 2, it is characterized in that, described movable blades and fixed blade have the thickness being less than 0.6 millimeter.
15. trimmers, it comprises cuts the system of cutting according to any one of the claims.
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 CN103042541A (en) | 2013-04-17 |
| CN103042541B true 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 |
|---|---|---|---|---|
| EP2747962B1 (en) * | 2011-11-08 | 2016-09-21 | Koninklijke Philips N.V. | Hair cutting device with improved cutting member |
| 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 |
| EP3900896B1 (en) * | 2020-04-24 | 2022-08-17 | Wahl GmbH | Cutting unit with wave-shaped cutting edge |
Citations (5)
| 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 |
Family Cites Families (6)
| 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 |
| US20110131790A1 (en) * | 2009-12-07 | 2011-06-09 | Po-Hsun Chien | Electromotive hair cutter |
-
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 ES ES12761953.4T patent/ES2583432T3/en active Active
- 2012-09-14 WO PCT/EP2012/068143 patent/WO2013056926A1/en active Application Filing
- 2012-09-14 KR KR1020147013168A patent/KR101945574B1/en active IP Right Grant
- 2012-09-14 EP EP12761953.4A patent/EP2768638B1/en not_active Not-in-force
- 2012-09-14 PL PL12761953.4T patent/PL2768638T3/en unknown
- 2012-09-14 RU RU2014119191/02A patent/RU2598067C2/en not_active IP Right Cessation
Patent Citations (5)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2014119191A (en) | 2015-11-27 |
| WO2013056926A1 (en) | 2013-04-25 |
| CN202540334U (en) | 2012-11-21 |
| RU2598067C2 (en) | 2016-09-20 |
| CN103042541A (en) | 2013-04-17 |
| KR101945574B1 (en) | 2019-02-07 |
| EP2768638B1 (en) | 2016-04-20 |
| PL2768638T3 (en) | 2016-11-30 |
| EP2768638A1 (en) | 2014-08-27 |
| EP2583798A1 (en) | 2013-04-24 |
| ES2583432T3 (en) | 2016-09-20 |
| KR20140082818A (en) | 2014-07-02 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |