CN1312751A - Non-slip scissors - Google Patents

Abstract

Disclosed is scissors for hair cutting or hair dressing, wherein substantially linear slits provided at the edge of the scissors are formed in a slit width that is equal to or smaller than predetermined thickness of a hair, the slits being serially provided along the edge with predetermined intervals. According to these scissors, when the hair is cut, a non-slip effect on hair is obtained, and this slip-free state can be maintained in spite of sharpening. In addition, a proper closing feeling free of strong resistance can be obtained during scissors closing operation. In particular, in the cutting shears, natural finish is possible as required. Alternatively, the slit is formed in length that does not overreach the frictional sliding face of the scissors, and is formed in a slit width that exceeds predetermined thickness of a hair and that is smaller than twice of the predetermined thickness. In this manner, the hair can be cut in a state in which not-slip works in the slits in a way similar to the above, and some hairs enter the slit, and cut in the slit. The hair cut in the slit slips off from this slit, and is free of being clogged, enabling smooth closing operation and reliable straight line alignment.

Description

The scissors of anti-skidding processing

The present invention relates to a kind of hair-cutting or Hair dressing scissors of improvement, as shearing scissors or skiving scissors.Particularly, the present invention relates to a kind of like this scissors, wherein be sheared or during skiving when hair, used anti-skidding step, to prevent that hair from sliding at the blade place of scissor blade, this anti-slip effect of scissors can not reduce because of sharpening of scissors, thereby has obtained the hair of natural finish, and cutting performance and wearability are improved.

When using for hair-cutting or hairdressing when shearing the scissor cut hair, as shown in figure 34, produced a kind of phenomenon, promptly be clipped in two hairs between the blade 102,102 and slide from the nearly handle terminad direction of blade.Thereby the shearing quantity of hair is owing to this slip reduces.

In addition, when when shearing track and do horizontal straight line and adjust, hair is sheared and is not adjusted in the predetermined lateral line.As shown in figure 35, it is crooked shearing track, brings inconvenience.

Hair is carried out under the situation of straight line adjustment by shearing the scissors mode at hair, the straight line of shearing track is too outstanding.Therefore, this straight line is lived by topped, will carry out the nature finish sometimes in view of the above.

Yet, even this straight line shear track by topped situation under, use the straight line adjustment of shearing scissors to operate as preprocessing.Then, do hair that this straight line adjusts by skiving, shear track by topped, natural finish is finished.Therefore, two kinds of scissors are sheared scissors and skiving scissors and are used this some trouble.In addition, in this preprocessing, promptly use the straight line adjustment of shearing scissors, be difficult to hair is carried out the straight line adjustment.Thereby hair must be sheared repeatedly, so that hair is carried out the straight line adjustment, and this some trouble.

In order to eliminate the inconvenience relevant with this slip, as shown in figure 36, formed shearing scissors 201, wherein, cut open and show that face V or the recessed sword 202 of U-shaped are formed on the blade continuously, thus, the wavy repetition of V-arrangement or U-shaped forms, to constitute the serrated edge shape.According to this scissors, hair is captured by the recessed sword 202 of blade, and does not slide.Like this, relevant with above-mentioned slip problem has been eliminated.

The hair sliding problem occurs on the skiving scissors equally.When hair slided on the blade of skiving blade, because the slip of hair, hair was difficult to cut.For addressing the above problem, shown in Figure 37 and 38, in the skiving scissors that provides, the recessed sword 202 of V-arrangement or U-shaped forms on the blade of skiving blade.According to the skiving blade, hair is captured by the recessed sword of blade, and does not slide.Like this, above-mentioned and the hair relevant problem of sliding has been eliminated.

In general, because the repeated use of scissors, its cutting performance has reduced.Thereby scissors is sharpened when using as required.Particularly, as indicated in the length dotted line that alternately occurs among Figure 39, sharpened near the part of blade.Yet, to sharpen near this part of blade and scabbled the recessed sword 202 that on blade, forms, the recessed sword of V-arrangement that Figure 36 to 38 shows or U-shaped has disappeared.In practice, recessed sword 202 has disappeared, because twice such operation of sharpening obtained rectilinear edge.As a result, the problem that has occurred not allowing the hair that slides begin to slide.

In addition, in shear-blade and skiving blade, when knife-edge became V-arrangement or U-shaped, hair was captured by recessed sword, had formed tress thus.When this tuft hair of closed scissor cut, just need reinforcing.In addition, strong resistance is felt, and sense of touch is weakened, and this can preferentially not selected for use aspect practicality.

On the other hand, in general, scissors is made by the stainless steel that is about 650Hv by hardness.Higher hardness has been improved cutting performance significantly.In use, obtain outstanding cutting performance, obtained very high wearability and invulnerability.In general, the upper limit of resulting stainless hardness is about 800Hv.As the material that exceeds this limit, formed the strong hardness tool materials, its available hardness is about 1000Hv to 1500Hv or be about 2000Hv.Yet the blade made from high hardness material becomes more crisp, and the crackle on the blade takes place probably.Thereby knife edge angular increases, and has prevented this crackle on the blade thus.Yet when knife edge angular increased on scissors, blade was difficult to be cut into hair, and hair slides easily.As a result, the slip of hair became severe when scissors was closed, and scissors can not fine performance function.Therefore, the scissors of being made by high hardness material does not form.

At present, practical application is the scissors of the about 700Hv of hardness.This hardness is restricted to and relates to the required upper limit of slip aspect scissors function.If scissors is that the stainless steel of 800Hv is made by hardness, shearing function must be to improve.In addition, if scissors is made by the strong tool materials with ultrahigh hardness, cutting performance and mar proof can improve widely.On the other hand, exist by the hair sliding problem that caused slip becomes very serious that slides, just impracticable.In practice, when scissors was made with hard tool materials, mar proof was expected to reach about 10 times of conventional scissors.Though this scissors is being desirable aspect cutting performance and the mar proof, the easier slip of hair is very impracticable.

The purpose of this invention is to provide a kind of scissors, wherein anti-skidding step is applied to hair, perhaps, whether no matter a kind of so anti-skidding step state sharpened and can be kept, thereby the closure sense that obtains suiting, a kind of sensation of having exempted the strong resistance in the scissors closed procedure, and especially, obtained required natural finish and shear in shearing scissors, scissors possesses outstanding cutting performance and mar proof.

According to the present invention, provide a kind of scissors, wherein, on the blade of a blade or each blade, be cut into basically the straight line joint-cutting or similarly thing form continuously along blade, and, suppose that hair is for being scheduled to rugosity, when the hair rugosity was restricted to parameter, the various width of slit of joint-cutting were defined.

Claim 1: at first, as shown in Figure 1 to Figure 3, joint-cutting is restricted to the width of slit that is equal to or less than the predetermined rugosity of hair.That is to say that the width of joint-cutting forms to such an extent that be less than or equal to the rugosity of hair.Scissors can be to shear scissors or skiving scissors or other types.

By this way, if joint-cutting in the rugosity of little hair, as shown in Figure 4, hair X is captured by the opening 4 of joint-cutting 3, it is as anti-skidding step.In addition, joint-cutting equals the rugosity of hair, and hair is captured equally, and it is as anti-skidding step.On the other hand, as shown in Figure 5, one or two hair X enter joint-cutting, are stuck in the joint-cutting.That is to say that hair is stuck in opening part, it uses the anti-skidding step of hairdo.

In addition, in these scissors, shown in chain-dotted line among Fig. 6, even blade is sharpened and shunk, joint-cutting 3 is not eliminated as shown like that, and anti-skidding step effect lasts till at last.

Though above joint-cutting can form (making) by any way, the emery wheel that these joint-cuttings can equate with the width of slit of each joint-cutting by thickness as example forms.If a thinly-sliced seam and the joint-cutting thicker than this joint-cutting form, just provide two kinds of emery wheels that adapt with these joint-cuttings so that grinding.

Claim 2: if the rugosity of hair is littler than predetermined rugosity, this hair is cut in the joint-cutting.For preventing this situation, joint-cutting forms to such an extent that length is no more than the friction sliding surface of scissors.By this way, blade forms blade when the joint-cutting bottom transverse meets at the friction sliding surface.The hair that like this, has entered in the joint-cutting can be sheared in the bottom of joint-cutting.

At this, friction sliding surface S is illustrated in the face that blade dorsal part place forms.The setting of this face is owing to following reason.

In general, though cuing open of the scissor blade back side shows that shape has a flexure plane that is called as the nick of back space P, as shown in figure 40, flat friction sliding surface S only be formed on blade near.This be because, when scissors being opened or when closed, shear action is owing to the slip of the friction sliding surface S of two blades obtains.Back space P is bent into concave surface, contacts each other to prevent the blade back side except that the friction sliding surface.Therefore, as Figure 11 and shown in Figure 12, the length of joint-cutting 5 is defined, and sliding surface S captures so that joint-cutting bottom 6 is rubbed, and is no more than friction sliding surface S.Enter under the situation of joint-cutting at the rugosity hair littler than predetermined rugosity, the length that joint-cutting forms is no more than the friction sliding surface S of scissors so that form blade 7, the bottom shear of blade 7 this.Which joint-cutting form length be no more than the friction sliding surface be at random.Such as, under the situation of joint-cutting size width coexistence, the joint-cutting 5 of big width is exactly the joint-cutting that thin hair enters the joint-cutting depths probably.Like this, when blade forms in the bottom of this joint-cutting, even a hair incision joint-cutting also can be sheared.

Claim 3: in addition, as another scissors, joint-cutting forms greater than predetermined hair rugosity, and less than the twice of hair rugosity.For blade is formed on the bottom at joint-cutting, the length that joint-cutting forms is no more than the friction sliding surface.Such as, width of slit is less than the twice of hair rugosity.

Even the width of joint-cutting greater than the rugosity of hair, still can be obtained a kind of effect, promptly when scissors was closed, hair was captured by the opening of this joint-cutting, and obtains anti-skidding step effect.Can think that this is because when scissors was closed, some hairs were gathered the opening part at joint-cutting, thereby even the rugosity of aperture efficiency hair is wide, the hair of intensive gathering is captured, so that occlusion of openings.

In addition, in these scissors, even enter at hair under the situation of joint-cutting, the width of joint-cutting is broadened.Thereby hair moves and becomes freely, does not have hair to be blocked in the joint-cutting.

Therefore, according to these scissors, hair can be sheared in the anti-skidding step of application in joint-cutting, and the part hair enters joint-cutting, and is sheared therein.The hair that is sheared in joint-cutting slips out from this joint-cutting, do not get clogged, thereby closed procedure and reliable line are aimed at becomes possibility.

Claim 4: as another scissors, the preset width of joint-cutting is to form like this, and promptly some hair enters longitudinal column.The length that joint-cutting forms is equally within blade friction sliding surface.

According to these scissors, because the width of joint-cutting increases, the number of hairs that is captured in the joint-cutting has increased.Yet, different owing to some hair is sheared in longitudinal row with traditional scissors, do not feel strong resistance, make smooth closed procedure become possibility.

Therefore, " some hair enters the predetermined width of slit of longitudinal row " determined as follows:

The closure-resistive of scissors is that the shearing feature by the length of the length of scissors handle, blade and blade causes.At last, except these factors, the quantity of determining to depend on the hair of being captured of resistance by joint-cutting.The width of joint-cutting has determined to be captured on the quantity (being the longitudinal column of hair) of the hair in the joint-cutting, and thus, resistance or fluency when shearing hair are determined.

Therefore, " some hair enters the predetermined width of slit of longitudinal column " is called as a width of slit, wherein, even the hair that is captured in the joint-cutting is sheared, also can obtain smooth closure-resistive, reach the degree that resistance is eliminated, so that tress is sheared when using the skiving scissors.Like this, as long as obtain smooth closed procedure, the width of joint-cutting just can be wide to 0.4mm to 0.5mm or similar situation.

" longitudinally " of longitudinal column shown the vertical of joint-cutting 3.The rugosity of hair is as being exemplified as 0.05mm to 0.08mm.Like this, width is that the joint-cutting of 0.2mm to 0.25mm can be used as example.In this case, three or four hairs just can be used as example and enter longitudinal column.

Claim 5: be no more than in the length that joint-cutting forms under the situation of friction sliding surface, thereby the joint-cutting bottom transverse meets at the friction sliding surface to form a blade, this traversed by forms (with reference to Figure 17), the cutting performance that can obtain suiting thus with acute angle.

If joint-cutting emery wheel grinding, the joint-cutting bottom forms a grinding intersection.Like this, so set with respect to the oriented approach of scissors, so that the tool point angle of joint-cutting bottom is an acute angle with the scissors emery wheel.

Claim 6: shown in figure 32, joint-cutting 3 vertically be defined to such an extent that be substantially perpendicular to the blade Kb of phase blade at each C place, crosspoint of scissors.

As the scissors that is equal to or less than predetermined hair rugosity at width of slit or width of slit surpasses and less than in the similar scissors of the predetermined rugosity of hair, anti-skidding if desired step effect, an end 4 ' of joint-cutting opening is an acute angle.Like this, capture effect has improved, and anti-skidding step effect improves.

In addition, therefrom enter on the preset width of a longitudinal column when width of slit is limited at some hairs, and wish when shearing the hair of being captured by joint-cutting, the rectilinear blade of phase blade is switched to downwards is emitted on the hair in the longitudinal column in the joint-cutting.Like this, just can improved cutting performance and the closed procedure fluency of improvement.

Claim 7: same, in any above-mentioned scissors, one " joint-cutting forms the part on it continuously " can be settled at random along blade.That is to say that joint-cutting can form continuously, or can form on the part of whole blade total length on the total length of blade.Such as, joint-cutting can only form in the part near blade end continuously, and common rectilinear blade can form in other parts.On the other hand, joint-cutting only forms in the partial continuous near the blade root, or can form in any partial continuous.In addition, forming part continuously can widely or fine form at the joint-cutting place.

According to this continuous existence that forms part with do not exist, scissors blades is divided into the part that part that hair is not sheared slidably and hair are sheared slidably, with the continuous existence that forms part with do not exist corresponding.The existence of this slip is brought to edge line with not existing.Thereby the shearing track of hair is not a straight line, with the configuration of " forming part continuously " corresponding wavy be irregular, thereby obtained changing naturally in the finish.

In addition, forming part continuously, the big and little gap of joint-cutting can change in each such part, and the degree of " anti-skidding " depends on this difference.Thereby hair is sheared track and is become irregular as wavy corresponding to big or small gap, as shown in figure 21.In addition, form continuously part about one equally, equal spacing forms in this part, perhaps big and little gap can be at interval ground formation such as not.

Equally, " joint-cutting forms the part on it continuously " used in the big and little gap of joint-cutting on arrangement at random on the blade and formation part continuously together, thus, can obtain the various finish of hair.On the other hand, can provide a kind of scissors, wherein, any in the big and little gap of random arrangement and joint-cutting obtains under the situation of not using them.

Claim 8: in any above-mentioned scissors, shallow cutting is the engagement arrangement joint-cutting of spill substantially, can replace joint-cutting and formation (Figure 33) continuously.This engagement arrangement joint-cutting shows, the joint-cutting that a kind of like this engagement arrangement of degree is provided, promptly hair than the recessed more recessed ridge place of blade as anti-skidding step, rather than shape is made to such an extent that hair therefrom enters the joint-cutting of joint-cutting.

Claim 9 and 10: in addition, as described in the background of invention part, when the scissors material possesses predetermined hardness or when harder, hair slides severely.Thereby this material with high rigidity is not employed always.Yet, according to the present invention, obtained anti-skidding step effect, and this material with high rigidity can be used as the scissors material.As a result, the cutting performance of improvement, mar proof and anti-slip effect can obtain by a secondary scissors, and one is very outstanding scissors available.

Particularly, following effect becomes more meaningful owing to using hard tool materials to make scissors.

Concrete examples of materials comprises: hardness is about the stainless steel of 800Hv or high-speed tool steel etc.The example of hard tool materials comprises the powder metallurgy high-speed tool steel, ultrafine dust (ultra-fine particle), carbide alloy, ceramal, ceramic powder, cubic boron nitride (CBN) etc.

Claim 11: claim 9 is made by the material that hardness is consistent each other with two blades of scissors hypothesis of 10.For keeping the cutting performance of scissors, the amount difference of blade material hardness aspect forms between these two blades opposite to one another, and joint-cutting can only form on the blade of high rigidity.

Reason is described below: in general, the scissors in the use stands pomade (hair grease) to be handled at the blade place.When the lubricating grease film was stamped in the sliding surface lining of two blades with different hardness, lubricating grease was as the lubricant of sharpening of friction sliding surface.When scissors is closed in operation and opens, can obtain a kind of effect, promptly the friction sliding surface on the high rigidity side has been sharpened the friction sliding surface of soft side.Like this, scissors is sharpened when using, and therefore, the blade of soft side can maintain in a kind of state, and promptly its blade is sharpened forever.In addition, the blade on the high rigidity side had mar proof originally, and the subtend blade of slip is the soft blade.Therefore, the blade little wear on the high rigidity side.In brief, the scissors that is provided, two permanent maintenances far away of blade are sharp, and suitable scissors performance is maintained.

For example, a kind of method is arranged, wherein, a blade ceramic making, joint-cutting forms on blade, another blade with stainless steel make (as, hardness is 650Hv).On the other hand, blade can be by ceramal or stainless steel and other materials combination making.If the blade abrasion speed on the soft side is very high, the amount difference of the hardness face between blade reduces.On the contrary,, on the blade on the soft side, can not obtain sharpening effect, can select, so that it is poor to enlarge the amount of hardness aspect material if it is low to wear and tear.

Fig. 1 is the view of the shearing scissors that shows according to the present invention of expression, and wherein, each joint-cutting forms a blade equal intervals;

Fig. 2 is the local enlarged view of Fig. 1;

Fig. 3 is a local enlarged view of showing blade for joint-cutting is described;

Fig. 4 is that the explanation hair is captured the view of situation by the joint-cutting opening, and it is as anti-skidding step;

Fig. 5 is that the explanation hair enters the view of joint-cutting situation;

Fig. 6 is a cross section view along the A-A line, and its explanation joint-cutting can not disappear because of sharpening;

Fig. 7 is the view of the following situation of explanation: when the thickness of joint-cutting surpasses the rugosity of hair and during less than the twice of hair rugosity, hair has abundant back gauge with respect to the width of joint-cutting;

Fig. 8 is the view of the following situation of explanation: wherein, joint-cutting forms by its predetermined width of slit, and the some of them hair enters a vertical hurdle, and hair is cut off in joint-cutting;

Fig. 9 is the view that shows another shearing scissors according to the present invention, and wherein thinly-sliced seam and thick joint-cutting alternately equidistantly occur;

Figure 10 is the local enlarged view of Fig. 9;

Figure 11 is the local enlarged view of Figure 10, and it illustrates thinly-sliced seam 3 and thick joint-cutting 5 are how to be associated with the rugosity of hair;

Figure 12 shows that the thinly-sliced seam 3 and the thick joint-cutting 5 that show among Figure 11 are the views how to be associated with friction sliding surface S and back space P;

Figure 13 is the view that shows an example when joint-cutting forms continuously;

Figure 14 is the view that shows an example when joint-cutting forms continuously;

Figure 15 is the view that shows an example when joint-cutting forms continuously;

Figure 16 is the view that shows an example when the bight of joint-cutting opening is cancelled;

Figure 17 is the cross section view of being got along the B-B line along Figure 14, wherein, has formed an angle, edge that is acute angle in the bottom of joint-cutting;

Figure 18 is the view that joint-cutting only partly forms in blade end;

Figure 19 shows that another shears the view of scissors according to the present invention;

Figure 20 shows a view shearing scissors, wherein, the part Y that joint-cutting forms continuously at this place and do not have the blade section Z of joint-cutting alternately to repeat, the big or small space at joint-cutting node place is formed on the continuous part of joint-cutting;

The view of Figure 21 finish that to be illustration finished by the shearing scissors that shows among Figure 20;

Figure 22 shows a view shearing scissors, and wherein, spacer is repetition, and like this, joint-cutting is tapered to end from the coarse part of nearly handle;

Figure 23 shows the view of the skiving scissors according to the present invention, and wherein, joint-cutting is formed on the blade equally spacedly;

Figure 24 is the local view that amplifies of of Figure 23;

Figure 25 is the partial enlarged view that shows the blade that is used to illustrate joint-cutting;

Figure 26 is the view that shows according to another skiving scissors of the present invention;

Figure 27 is the partial enlarged view of Figure 26;

Figure 28 is the partial enlarged view that shows following situation: thinly-sliced seam and thick joint-cutting equidistantly alternately repeat at the node place of skiving scissors;

Figure 29 shows a view shearing scissors, and wherein, the orientation of joint-cutting tilts, and is vertical with the edge line of corresponding blade 26 when closed with convenient scissors;

Figure 30 is a view that shows the skiving scissors, and wherein, the orientation of joint-cutting tilts in mode same as shown in Figure 29;

Figure 31 shows the zoomed-in view of joint-cutting shown in Figure 29 and Figure 30;

Figure 32 shows that the inclination joint-cutting is restricted to the view with the corresponding situation of some hairs on width;

Figure 33 shows that the joint-cutting that connects that is essentially spill that is used for shallow cut replaces the joint-cutting view of an example of formation continuously;

Figure 34 is the view that shows tradition shearing scissors, and wherein hair slides.

Figure 35 is that the explanation hair is sheared the view that track does not have to aim at situation in a straight line;

Figure 36 is the view that shows the serration type scissors, and it is one type shearing scissors and has recessed sword at the blade place;

Figure 37 is the view that shows the skiving blade, and wherein, blade has the recessed sword of U-shaped;

Figure 38 is the view that shows the skiving blade, and wherein, blade has the recessed sword of V-arrangement;

Figure 39 is described as follows true view, and promptly the recessed sword of blade is cancelled in the scissors shown in Figure 36 to Figure 38; And

Figure 40 is view at the friction sliding surface S at scissors knife back place of explanation.

In the shearing scissors shown in Figure 1, joint-cutting 3,3 ... be formed on the side of 2a among two blade 2a and the 2b equidistantly in the total length of blade 2a.The shape and the row of these joint-cuttings 3 put as shown in Figures 2 and 3.The width W of joint-cutting is limited at about 0.04mm to 0.05mm, and the rugosity of supposing hair is 0.08mm.Slot length L is limited at about 1.0mm, and the pitch width between the joint-cutting is limited at about 1.0mm.

In the manufacturing of shearing scissors 1A, have with the emery wheel of the width W corresponding thickness of joint-cutting perpendicular to blade vertically, joint-cutting is ground thus, the terminal order of this grinding from nearly handle to blade carried out, joint-cutting 3 forms in succession.By this way, as shown in Figure 4, the opening 4 of joint-cutting 3 accurately forms the right angle, has obtained the captive effect of hair X.In addition, width of slit is narrower than the rugosity of hair, like this, has just been obtained by the anti-slip effect that joint-cutting 3 produces.

In addition, even the thickness of hair equals the width of joint-cutting, this capture effect reaches too.On the other hand, as shown in Figure 5, hair is sandwiched between the joint-cutting, is used for the anti-skidding step of hair.If certain root hair is captured by opening, another root hair is just captured by this root hair, and other hairs are captured by this another root hair again then.Like this, hair is captured one by one in succession, and suitable anti-slip effect has just been obtained.

In addition, if cutting performance descends owing to the continuous use of scissors, blade will be sharpened so that recover cutting performance.Even blade is by this retraction (the shown in Figure 6 chain-dotted line corresponding with attrition surface) of sharpening, joint-cutting 3 is not eliminated yet, and anti-slip effect is extended at last.In addition, though the bight of joint-cutting opening 4 owing to constantly use and rounding, new bight 4 also can form at opening part owing to the grinding of blade, makes to recover anti-slip effect and become possibility.

As another example, shown that wherein the rugosity of supposing hair is 0.08 as the desired scissors 1 of claim 3.The external view of scissors and outer appearnce shown in Figure 1 are seemingly.It is joint-cutting 3,3 ... forming in the length range at whole blade on the blade 2a, rectilinear blade forms on blade 2b.In these scissors, width of slit W is limited at about 0.1mm, and it is greater than the rugosity (0.8mm) of a hair and less than the twice of a hair rugosity.As shown in Figure 7, width of slit is defined as provides an edge, so that hair is not stuck in the joint-cutting.Though friction sliding surface S is restricted to the width of about 1.0mm, joint-cutting 3 is restricted to the slot length L of about 0.5mm, so that be comprised within this friction sliding surface S.In addition, about 0.4mm's all equidistantly is limited between joint-cutting 3 and 3.In addition, as shown in Figure 3, blade 5 becomes with the sharp edges dihedral.

According to these scissors, as shown in Figure 7, when hair is sheared, obtained anti-slip effect at the opening part of joint-cutting, slip is suppressed, and convenient straight line is to whole.In addition, though some hair is sheared, has only a hair in vertical hurdle when hair enters joint-cutting and captured by joint-cutting.Thereby these hairs are sheared under the situation of closure-resistive not having.

Particularly, though the hair of shearing when it is captured by joint-cutting is clipped between the joint-cutting once in a while, if hair is sheared continuously, the hair that temporarily is clipped between the joint-cutting is easy to be slipped out from joint-cutting by under the state that shakes from them.Like this, hair is not stuck in the joint-cutting.

By this way, being characterized as of above scissors: scissors goes on well as anti-skidding step; Even hair enters joint-cutting, the resistance when scissors is closed also resembles the conventional scissors smooth; In addition, hair is not stuck in kind of the joint-cutting.

As another example, shown the desired scissors of claim 4, wherein, the width of joint-cutting changes with predetermined width of slit, and some hair therefrom enters a longitudinal column.These scissors are arranged on the blade Ka place of scissors, and as shown in Figure 8, the width of slit W of joint-cutting 3 is restricted to 0.2mm, and two or three hairs therefrom enter longitudinal column.In addition, slot length L is about 1.0mm or short, and friction sliding surface S is not crossed in bottom 4, and spacing width is about 1.0mm.

According to these scissors, be sandwiched in when hair in rectilinear edge part 6 shearings of 3 of adjacent joint-cuttings, some hairs are captured by joint-cutting, and are sheared at this point.

In general, the rugosity of Asians's hair is about 0.08mm, and the westerner is about 0.06mm.The rugosity of thin especially hair is about 0.03mm.For same people, the rugosity of hair is constant basically, the narrow range of rugosity.Therefore, for example, when using scissors in Japan, Asians's predetermined hair average boldness is defined as 0.08mm, when this rugosity is confirmed as parameter, can form above various types of scissors.On the other hand, multiple width of slit can be set and be not limited to the above.

As another example, in Fig. 9 and Figure 10, shown shearing scissors 1B, wherein, thinly-sliced seam 3 and thick joint-cutting 5 be alternately equidistant formation on blade 2a continuously.The width of slit of thinly-sliced seam 3 is about 0.04mm to 0.05mm, and slot length is about 1.0mm or shorter, and it has surpassed friction sliding surface S (width is about 0.5mm) (with reference to Figure 11).In addition, the width of slit of thick joint-cutting 5 is about 0.08mm, and slot length forms 0.3mm to 0.4mm, does not surpass the friction sliding surface.These joint-cuttings form continuously with the spacing of 1.0mm.

By this way, as shown in figure 11, hair Xa is captured by thinly-sliced seam 3, as anti-skidding step.On the other hand, hair Xb is captured by thick joint-cutting 5, and is stuck, as anti-skidding step.In addition, in thick joint-cutting 5, blade 7 forms at 6 places, joint-cutting bottom.Like this, even hair enters joint-cutting 5, hair also can be sheared.

By this way, when thick joint-cutting 5 is set, even they also are used as anti-skidding step to the rugosity of hair during greater than mean value.

As mentioned above, suppose that the rugosity of hair changes, the width of joint-cutting forms with different sizes, makes each different rugosity of treatment of hair or departing from of hair rugosity become possibility.In addition, have the shearing joint-cutting of different width of slit to coexist arbitrarily, and form continuously, can obtain thus with the scissors that has only same width joint-cutting different cutting performance and sense of touch.A is in shearing scissors, and joint-cutting not only can only be formed on the blade, and can be formed on two blades continuously as mentioned above.In addition, thinly-sliced be sewn on the blade form after, thicker joint-cutting can form on another blade.The width of each joint-cutting can change, and is not limited to the constant width of each joint-cutting, as long as above-mentioned condition is met.

Figure 13 (a) is to Figure 13 (c), and Figure 14 (a) has shown an example when joint-cutting forms respectively to Figure 14 (c) and Figure 15 on two blade 2a and 2b, and it thes contents are as follows.

In Figure 13 (a), equally spaced thinly-sliced seam 3 forms on two blade 2a and 2b.In Figure 13 (b), equally spaced thinly-sliced seam 3 forms on blade 2a, and equally spaced thick joint-cutting 5 forms on blade 2b.In Figure 13 (c), narrow equidistant thinly-sliced seam 3 forms on blade 2b, the wide equidistantly thinly-sliced upward formation of blade 2b that is sewn on.In Figure 14 (a), thinly-sliced seam 3 and thick joint-cutting 5 form equidistantly repeating on two blade 2a and 2b.In Figure 14 (b), thinly-sliced seam 3 is with equidistant formation, and the thick joint-cutting 5 that forms between thinly-sliced seam 3 and 3 is alternately arranged every two thinly-sliced seams 3 and put.Thinly-sliced seam 3 and thick joint-cutting 5 are formed on two blade 2a and the 2b equally spacedly.In Figure 14 (c), on blade 2b, thinly-sliced seam 3 is with equidistant formation, and the thick joint-cutting 5 that forms between thinly-sliced seam 3 and 3 is alternately arranged every two thinly-sliced seams 3 and put.Thinly-sliced seam 3 and thick joint-cutting 5 are with wide equidistantly being formed on the blade 2a.In Figure 15, pitches such as the thick joint-cutting 5b ground that the thinly-sliced seam 5a of equal length and length are slightly long alternately is formed between thinly-sliced seam 3 and 3, and this row puts on two blade 2a and 2b and forms.

As another example, in Figure 16, shown the removed situation in angle of the opening of joint-cutting 3, wherein, hair can differently be captured by joint-cutting.In addition, if a kind of scissors is provided, its hair augments at the joint-cutting place, and is sheared, and hair can differently be augmented.

Figure 17 is along as a cut-away view according to Figure 14 (a) B-B line shown in the embodiment of claim 5, wherein, the joint-cutting bottom 6 of thick joint-cutting 5 forms so that captured by the friction sliding surface S at blade back, in addition, blade 7 with the knife edge angular that is acute angle forms in joint-cutting bottom 6, and possible angular range is spent to 89 degree from 15.By this way, the hair that enters into the joint-cutting bottom of thick joint-cutting can be sheared.

As another example, in shearing scissors 1C as shown in figure 18, joint-cutting only equidistantly forms to the 3cm place at the 2cm of the end portion of blade 2a.The present invention is used in the end portion of the most normal use of shearing scissors.

As another example, in shearing scissors 1D as shown in figure 19, the thinly-sliced seam 3 of equal length and thick joint-cutting 5 alternately only form on blade 2a.The shape of edge line forms to such an extent that heave with the form of protruding at the middle part of whole blade, and is set at the position (parameter K shown in the figure) of regaining from shank 8.Therefore, no matter where be positioned at owing to scissors is closed to terminal from root, can keep same intersecting angle at two edge lines.As a result, the hair sliding characteristics of shearing scissors is consistent relatively from the root to the end.When joint-cutting when the blade equal intervals forms, anti-slip effect is quite consistent from the root to the end, has obtained practical scissors.

As another example, in Figure 20, show that wherein, three part Y that joint-cutting 3 forms on it continuously put along blade row as the desired shearing scissors of claim 7 1E, that is, part Y and seemless knife edge part Z that joint-cutting 3 forms on it continuously repeat.In joint-cutting 3, formed big or small gap, like this, form in part a part Y place rugosity that forms continuously, and be tapered towards the end near root.When using shearing scissors 1E, the hair that is sheared obtains finish with the form of wave Q, as shown in figure 21, and has obtained the sensation different with adjusting to a line.The big or small gap of other of each joint-cutting can form in any form.

As another example, in Figure 22, show as the desired shearing scissors of claim 7 1F, wherein, joint-cutting 3 from the coarse to fine part R from the root to the end direction, triplicate on the whole length of blade.

As another example, in Figure 23, shown the applicable skiving scissors of the present invention 1G, wherein, skiving blade 20 and rectilinear blade 30 are pivotally mounted, and wide skiving blade 21 and narrow skiving blade 22 alternately form.In addition, the interval between the skiving blade 22 and 22 with equate at interval with one.Some joint-cuttings 3 form on wide skiving blade 21, do not form a joint-cutting on narrow skiving blade 22.Joint-cutting 3 is formed and row puts, and as Figure 24 and shown in Figure 25, wherein, width of slit is limited at about 0.04mm to 0.05mm, and slot length L is restricted to about 1.0mm.

Skiving scissors 1G also forms the hair skiving scissors that the joint-cutting be configured reduces that slides.When scissors is closed, eliminated the strong resistance when tress is captured by the hollow back at skiving knife-blade place, make smooth merging operation become possibility.

Joint-cutting can be arranged on the blade place of Straight line shears and not form joint-cutting on the skiving scissors.

As another example, in Figure 26 and Figure 27, shown skiving scissors 1H, wherein two blades are made of skiving blade 40 and 50 respectively.In these skiving blades 40 and 50, their skiving blade 41,42,51 and 52 forms same shape shaft around pivot, wide skiving blade 41 and 51 and narrow skiving blade 42 and 52 form toward each other.As narrow than as the skiving blade 40 of stationary blade of the width (length from the top to the end) of the skiving blade 50 of moving blade, the skiving blade 51 and 52 of moving blade forms than the skiving blade 41 of stationary blade and 42 short thus.The interval of skiving blade is equal to each other.Joint-cutting 3 forms in skiving blade 40 1 sides as stationary blade.Some joint-cuttings 3 are formed on the wide skiving blade 41, and a joint-cutting 3 is formed on the narrow skiving blade 42.

As another example, in Figure 28, shown that Figure 10 is applied to the skiving scissors to joint-cutting shown in Figure 12.This example and each foregoing example are that the same fact is, thinly-sliced seam 3 and thick joint-cutting 5 on the skiving blade alternately with equidistant from distance form, width and/or the length and the anti-slip effect of each joint-cutting.In addition, this example and aforementioned each example something in common also have: blade 7 forms at 6 places, joint-cutting bottom of thick joint-cutting 5, and thus, even hair enters joint-cutting, these hairs also can be sheared.

As another example, one as claim 7 example when desired the present invention is applied to the skiving scissors is as follows.At first, the row at random that joint-cutting forms the part on it continuously puts, and is to put that skiving blade that joint-cutting forms and rectilinear edge form thereon thereon and traditional skiving blade of not having a joint-cutting is finished by row suitably.In addition, about the big and little space of each joint-cutting, joint-cutting is the setting of each skiving blade, and each skiving blade is formed by the density that changes joint-cutting.On the other hand, wide skiving blade (as, width is 1cm) situation under, big and little gap can form on this skiving blade.

On the other hand, under the situation that the skiving scissors is made up of rectilinear blade and skiving blade, the skiving blade keeps straight line at its blade place usually.In addition, a part that forms is continuously arranged at random on the avris of rectilinear blade and is put, and perhaps, the big and little gap of joint-cutting can be formed on continuous formation part, as above-mentioned shearing scissors.

According to this set of joint-cutting, shear scissors be divided into hair do not have under the sliding condition via the skiving scissors of its shearing and under the hair sliding condition via the skiving scissors of its shearing.This slip difference is directed to edge line.Thereby the skiving amount of hair changes with each part of blade, and can obtain the nature variation in the finish of hair skiving.

In above-mentioned scissors 1A to 1H, though all joint-cuttings to be cut basically with on the blade vertically vertical angle, as described in Figure 29 and 30, joint-cutting can vertically being cut with predetermined inclination with respect to blade 2a and 20.As an example, at each C place, crosspoint when scissors is closed, a corresponding joint-cutting of joint-cutting can be arranged on and the blade 2b direction vertical with 30 edge line mutually.On the other hand, a corresponding joint-cutting of joint-cutting can be with respect to being arranged on the angle direction perpendicular to the direction of the edge line of phase blade 2b and 30.By this way, as shown in figure 31, an end 4 ' of joint-cutting opening is acute angle, and capture effect has improved, and anti-slip effect has improved.In addition, because joint-cutting is cut by rake angle, the width W 0 of opening is wideer than width of slit W.Anti-slip effect has improved equally, thus.In addition, if certain root hair equates that with the rugosity of the width of slit of joint-cutting this hair can enter joint-cutting easily.

In addition, under the width of slit situation corresponding, estimate that this hair captured by joint-cutting, and be sheared with the width of some hair.Like this, shown in figure 32, hair can be captured easily by joint-cutting.In addition, the hair of being captured and enter joint-cutting by joint-cutting 3 be placed in basically with the vertical vertical hurdle of the blade of blade 2b mutually in.Thereby, shear and suitably carried out.

The width of joint-cutting, the row that mixes of thinly-sliced seam and thick joint-cutting puts, spacing, slot length, the existence of joint-cutting or do not exist, and the big and little gap of joint-cutting can freely be determined.

The present invention also can be applicable to the scissors of blade alternative type.In the scissors of this blade alternative type, the part of scissor blade (a site of the blade of the scissors) is set to be independent of the alternative blade of scissors main body, depends on that the various types of alternative blade of installation method is available.On this alternative blade, be formed with joint-cutting, it is one of inscape of the present invention.This blade is installed on the main body of scissors, has formed thus according to scissors of the present invention.

In above-mentioned scissors, replace being essentially the joint-cutting of straight line, as shown in figure 33, cut more shallow, can form continuously for the engagement arrangement 3 ' of spill substantially.In this case, the A/F of engagement arrangement 3 ' is corresponding with the width of slit of above-mentioned joint-cutting.Hair is difficult to be rendered as the thinly-sliced seam 3 of average hair rugosity and captures, and anti-skidding step can not effectively be brought into play.Equally, in this case, hair is captured by other thick joint-cuttings 5, and anti-skidding step effect is achieved.In this case, engagement arrangement 3 ' is owing to friction has disappeared relatively earlier.These are used for cheap, the careless scissors of disposing effectively, maybe can be used for blade replacement type scissors.Any manufacture method can be used.Can make it by extruding from blade material, to break away under the situation about coming at blade, the method for while pressing blade and engagement arrangement joint-cutting is provided.On the other hand, can the engagement arrangement joint-cutting be set in addition on the blade in the stage of finishing reaching.

Claims (11)

1, a kind of scissors comprises that described each joint-cutting is provided with by predetermined space continuously along blade in order to form the device of the joint-cutting of straight line basically on the blade that is arranged on or each blade with the width of slit that is equal to or less than the predetermined rugosity of hair.

2, scissors as claimed in claim 1, wherein, each joint-cutting is formed on the length of the friction sliding surface that is no more than scissors.

3, a kind of scissors, the joint-cutting of straight line basically that wherein is arranged on a blade or each knife-blade is formed on the length of the friction sliding surface that is no more than described scissors, and to surpass the predetermined rugosity of hair and to be scheduled to the width of slit formation of rugosity twice less than hair, described each joint-cutting forms with predetermined space continuously along blade.

4, a kind of scissors, the joint-cutting of straight line basically that wherein is arranged on a blade or each knife-blade is formed on the length of the friction sliding surface that is no more than described blade, and form with the predetermined width of slit that some hairs therefrom enter a longitudinal column, described each joint-cutting forms by predetermined interval continuously along blade.

5, the scissors described in claim 2 to 4, wherein, the bottom of joint-cutting forms a blade that forms an acute angle with respect to the friction sliding surface.

6, as each described scissors in the claim 1 to 4, wherein, the direction that joint-cutting is cut is arranged at place, the crosspoint of scissors and is substantially perpendicular on the direction of blade of phase blade or each blade.

7, as each described scissors in the claim 1 to 4, wherein, joint-cutting forms part on it continuously and arranges at random along described blade or each blade and put, and/or described continuous formation part is with a plurality of continuous settings, and big and little gap is arranged on described each joint-cutting place.

8,, wherein, cut more shallow basic engagement arrangement joint-cutting and replace forming continuously for the joint-cutting of straight line substantially for spill as each described scissors in the claim 1 to 4.

9, as each described scissors in the claim 1 to 4, wherein, adopting hardness is the material of 720Hv.

10, scissors as claimed in claim 9, wherein, the material that the material of 720Hv hardness or hardness are bigger is hard tool materials.

11, scissors as claimed in claim 10, wherein, the different hardness grade of blade material is formed between two opposed blades, and joint-cutting or engagement arrangement joint-cutting only are formed on the blade of high rigidity side.

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