JP2006239445A - Slide-proof cut scissors - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide cut scissors made slide-proof for hair, by which good closing feeling can be obtained without rough feeling in scissors closing work, natural finishing is obtained as well as smooth closing operation and surely straight cutting. <P>SOLUTION: The cut scissors include blades with straight edges. Engaging grooves 3' in almost shallow cut-in recess shapes with groove width thinner than prescribed thickness of hair formed on the straight edges and partial edges of the straight edges sectioned by the engaging grooves 3' are alternately set in the straight edges. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to improvement of haircuts and haircuts for hairdressing, and more particularly, when hair is cut, the hairs have a non-slip surface so that the hair does not slip on the blade edge, and the hair has a natural finish. It relates to the cut cut obtained.

When hair is cut with a hair scissor or a hair scissors, the hair sandwiched between the two blades 102 and 102 slid away from the proximal end of the blade to the distal direction as shown in FIG. The amount of hair cut is reduced by the amount of waking up and escaping.
Also, when aligning the hair cut traces in a horizontal straight line, due to the above-mentioned slip, the cuts of the hair are not aligned in the planned horizontal straight lines, and the cut traces are bent as shown in FIG. 35, which is inconvenient.

However, when the hair is arranged in a straight line with a cut wrinkle, the straight line of the cut mark is too conspicuous and may be disliked, so the process of blurring the straight line may result in a natural finish.
However, even when blurring such a straight cut trace, straight line alignment with cut wrinkles is performed as a pre-processing, and then the cut traces are blurred by combing the hair aligned with this straight line, resulting in a natural finish. Yes. Therefore, it takes time and effort because it uses two types of cut cocoons and cocoons. Moreover, since the pre-processing of straight line alignment using a cut wrinkle does not readily align with a straight line due to hair slip, there is the trouble of cutting many times in order to align the hair with a straight line.

  In order to eliminate this inconvenience with respect to the slip, as shown in FIG. 36, a concave portion 202 having a V-shaped or U-shaped cross section is continuously provided on the blade front side of the blade edge, thereby forming a V-shaped, U-shaped or the like on the blade edge. There is a cut ridge 201 that is repeatedly provided with a wavy edge shape. According to this, since the hair is captured by the concave portion 202 of the blade edge and does not slip, the above-mentioned problem due to the slip is solved.

  The problem of hair slipping is also the same with wrinkles, and since hair slips away from the edge of the comb blade, it is often impossible to comb hair. For this, as shown in FIGS. 37 to 38, a ridge having a V-shaped or U-shaped concave portion 202 provided on the edge of a comb blade is provided. According to this, hair is formed in the concave portion of the blade edge. Since it is trapped and does not slip, the above-mentioned problem caused by slipping is solved.

  In general, however, the sharpness of the scissors decreases as they are used. Therefore, the scissors should be polished while being used at an appropriate time. Specifically, as shown by the one-dot chain line in FIG. It becomes. However, when the edge of the blade surface is polished, the concave portion 202 formed on the blade tip is scraped off, and the V-shaped and U-shaped concave portions 202 shown in FIGS. 36 to 38 disappear. Actually, the concave portion 202 disappears only by performing such polishing 1-2 times, resulting in a straight edge, and as a result, there is a problem that hair that has not been slipped until then starts to slip.

  In addition, if the cutting edge is either V-shaped or U-shaped, the hair is caught in the recesses and cut into bundles, so that it is necessary to use force when closing the folds. In addition, there is a sense of rugged resistance and poor feel, both of which are undesirable in terms of work.

  On the other hand, stainless steel is generally used as the material of the cage, but the hardness is most often about 650 Hv. The higher the hardness, the higher the cutting force, the better the sharpness at the time of use, and the better the resistance to wear. In general, the upper limit of the hardness of stainless steel obtained is about 800 Hv, but there are super hard tool materials exceeding this, and a hardness of about 1000 Hv to 1500 Hv, and further about 2000 Hv can be obtained. However, since the blade becomes more brittle as the material becomes harder and more likely to spill, the blade edge angle of the blade is increased to prevent spillage. However, when the blade edge angle is increased in the heel, the blade is less likely to bite into the hair, and the hair becomes more slippery. For this reason, since the hair escapes when the heel is closed and the function of the heel is not performed, the heel using such a high hardness material is not provided.

  At present, some ridges having a hardness of around 700 Hv are provided, and this degree of hardness is the upper limit of the hardness that functions as a ridge in terms of the presence or absence of escape. If stainless steel with a hardness of 800Hv is used as a scissors material, the cutting force will be improved, and if a super-hard tool material with high hardness is used as a scissors material, the cutting force and wear resistance will be further improved. There is a problem that it becomes extremely noticeable and cannot actually be used. In particular, if super hard tool material is used for wrinkles, it is expected to have about 10 times the wear resistance compared to conventional wrinkles, and it will be an ideal wrinkle in terms of cutting force and wear resistance, but hair will slip and wrinkles It is in a situation that can not be realized.

  Therefore, it is desirable to provide a wrinkle that is a cut wrinkle that is provided with anti-slip of hair and that can provide a good closing feeling without a jerky feeling in the closing operation of the wrinkle, and that can have a natural finish.

  For the above purpose, the invention of the present application, which is a divisional application, is a cut ridge whose blade is a straight blade, and is formed on the straight blade with a groove width equal to or smaller than a predetermined hair thickness. A cutting rod characterized in that a substantially concave locking groove having a shallow depth of cut and partial blades of the linear blade partitioned by the locking groove are alternately provided.

In the following, inventions other than the present invention described in the original application of the present application will be described.
Invention 1; First, as shown in FIG. 1 to FIG. 3, the cut groove has a groove width equal to or smaller than a predetermined hair thickness. That is, the width of the cut groove is smaller than the thickness of the hair or is equal to the thickness of the hair. The cocoons can be cut cocoons, cocoons, or any other form.

As a result, if the cut groove is thinner than the thickness of the hair, the hair X is caught in the opening 4 of the cut groove 3 as shown in FIG. Further, even if the cut groove has a width of hair, it is similarly caught and becomes non-slip, or as shown in FIG. 5, 1-2 hairs X enter the cut groove and get caught in the cut groove near the cutting edge. In other words, the opening is clogged, thus preventing hair from slipping.
Moreover, even if the cutting edge is polished and the cutting edge is retracted as shown by the one-dot chain line in FIG. 6, the cutting groove 3 does not disappear as shown in FIG.

  The formation method (manufacturing method) of the cut grooves as described above may be whatever, but as an example, the cut grooves can be formed by a disk grindstone having a thickness equivalent to the width of the cut grooves. If a narrow cut groove and a thick cut groove are to be formed, two types of disk grindstones corresponding to this may be prepared and ground.

Invention 2: However, if the hair is thinner than the expected thickness, the hair may be cut into the cut groove. Therefore, the cut groove is formed in a length that does not protrude from the slid surface. As a result, the groove bottom of the cut groove intersects the sliding surface to form a blade, so that the hair that has entered the cut groove can be cut at the groove bottom.
Here, the scrubbing surface S is a surface provided on the blade back side of the blade edge, and is provided for the following reason.
In general, the cross-sectional shape of the blade edge of the scissors has a slight concave curved surface called a back gap P as shown in FIG. 40, but only the vicinity of the blade edge is a flat slidable surface S. This is to obtain a cutting action when the sliding surfaces S of the two blade edges are slid together when opening and closing the scissors. At that time, the back surface is not touched to touch the blade surfaces other than the slidable surface. P is concave. Accordingly, as shown in FIGS. 11 to 12, since the groove bottom 6 of the cut groove 5 has a groove length that hangs on the scrubbing surface S so that the hair does not protrude from the slidable surface S, the hair that is thinner than planned is cut into the cut groove. When entering, in order to provide the blade 7 for cutting the hair in the groove bottom 6, the cutting groove was formed to a length that does not protrude from the slidable surface S of the ridge.
Which cut groove is formed to have a length that does not protrude from the scrubbing surface is arbitrary. For example, when the groove widths are mixed, the large cut groove 5 is easy for thin hair to enter deeply. If a blade is provided at the bottom of the groove, even if there is hair in the cut groove, it can be cut without leaving it.

Invention 3: As another wrinkle, the cut groove was formed to have a groove width exceeding a predetermined hair thickness and less than twice the thickness of the hair. At that time, in order to form a blade at the bottom of the groove, the cut groove was made long enough not to protrude from the sliding surface. For example, the groove width is 1. It is about several times.
Even if the width of the groove is wider than the thickness of the hair, the action of catching the hair on the opening of the cut groove is obtained at the time of closing the heel, and the effect of preventing slipping is obtained. This is probably because a large number of hairs concentrate on the opening of the cut groove when closing the eyelids, so that even if the opening is wider than the thickness of the hair, dense hair is caught so as to close the opening.
Moreover, even if the hair enters the cut groove, the wrinkle has a wide groove width, so that the hair is easily removed and the cut groove does not clog the hair.

  Therefore, according to this scissors, the hair can be cut while being slipped by the cut groove, and a part of the hair enters the cut groove and is cut in the groove. At that time, the hair cut in the cut groove does not fall out of the cut groove and become clogged, and a smooth closing operation and a straight line alignment are possible.

Invention 4: As another wrinkle, the groove width was formed to a predetermined groove width in which the hair enters a column of several widths. In that case, the point which forms the cut groove in the length which does not protrude from the sliding surface of a blade body was made to be the same as that of the above-mentioned collar.
According to this wrinkle, the width of the groove increases, so the amount of hair captured in the cut groove increases, but since the hair is about several rows vertically, there is no ruggedness as seen with conventional saw blades and smooth closing Operation becomes possible.

Accordingly, the “predetermined groove width in which several hairs are arranged in tandem” is determined as follows.
First of all, the closing resistance of the heel is determined by the length of the heel handle, the length of the blade, the cutting characteristics of the blade, etc., but ultimately the amount of hair trapped in the cut groove is added. It will be. At that time, the groove width determines the amount of hair (that is, the hair column) captured in the cut groove, and this determines the resistance and smoothness when cutting the hair.
Therefore, the “predetermined groove width in several columns” as used in the present application means that even if the hair captured in the slit groove is cut, there is no sense of resistance like cutting a bundle of hair when using a saw blade. The groove width that provides a smooth closing resistance. Therefore, if the smoothness of the closing operation can be obtained, the groove width may be wider, for example, 0.4 mm-0.5 mm.

  The vertical direction of the “column” means the longitudinal direction of the cut groove 3. Since the thickness of the hair is 0.05 mm-0.08 mm as an example, the groove width of the cut groove can be exemplified by about 0.2-0.25 mm. In this case, the cut groove has a width of 3 as an example, or Hair can enter a column of about 4 widths.

Invention 5: In addition, when the cut groove is formed in a length that does not protrude from the scrubbing surface, and the bottom of the groove intersects the scrubbing surface to form a blade, the intersection is made acute (see FIG. 17). ), Better cutting force can be obtained.
At that time, if the cutting groove is ground with a disc grindstone, the groove bottom is formed as a grinding mark. Therefore, the direction of the disc grindstone with respect to the ridge should be set so that the edge angle of the groove bottom becomes an acute angle. .

Invention 6; Further, as shown in FIG. 32, the longitudinal direction of the cut groove 3 is provided in a direction substantially perpendicular to the blade edge Kb of the mating blade body at each intersection C of the ridges.
If the groove width is equal to or less than the predetermined hair thickness or is intended to have a non-slip effect, such as wrinkles that are larger than the predetermined hair thickness and less than twice, the one end 4 of the opening portion of the cut groove Since 'becomes an acute angle, the catching effect is increased and the anti-slip effect is improved.
In addition, if the groove width is a predetermined width in which the hair enters several columns of width and is intended to cut the hair supplemented by the slit groove, the hair is aligned in the slit groove. Since the straight blade of the counterpart blade body is cut at a substantially right angle, the cutting force can be improved and the smoothness of the closing operation can be improved.

Invention 7: In any of the above-mentioned scissors, the “part where the cut groove is continuously provided” may be arbitrarily arranged along the blade edge. That is, the cutting groove may be provided continuously over the entire length of the blade span of the blade body, or may be provided continuously over a part of the overall length of the blade span. For example, a notch groove is continuously provided only near the tip of the blade, and the other part is simply a normal straight blade, or a notch groove is provided only near the base end of the blade. It may be one that is connected to the various parts.
Further, the portions provided continuously may be provided with coarse and dense cut grooves.

Depending on the presence / absence of such a continuous portion, the blade edge of the eyelid is divided into a location where the hair can be cut without slipping and a location where the hair can be cut while sliding. Since the presence or absence of such slippage is provided on the cutting edge line, the hair cut trace is not a straight line, and irregularities such as wavy shapes corresponding to the arrangement of “continuous portions” are obtained, and a natural change in the finish can be obtained.
In addition, in the portion provided continuously, the density of the cut groove can be different for each portion, and the strength of the “slip prevention” is generated according to this difference. As shown in the figure, irregularities such as corrugations corresponding to roughness are obtained. Moreover, even if it sees about one part provided continuously, it may be made into the equal pitch in the part, or the unevenness | corrugation was provided in the non-uniform space | interval.
In this way, various finishes of the hair can be obtained by using an arbitrary arrangement of the “parts in which the cut grooves are continuously provided” on the cutting edge and the density of the cut grooves in the connected parts in combination. Alternatively, it is also possible to use a kite that realizes only one of them without using both the arbitrary arrangement and the density of the cut grooves.

  Invention 8: In any of the above-mentioned scissors, a substantially concave locking groove having a shallow notch may be provided in place of the notch groove (FIG. 33). This locking groove is not a shape into which hair enters like a cut groove, but a locking that locks the hair to a non-slip state by a recess recessed from the blade edge.

  The divisional application claims part of the invention 8 as claims.

Invention 9-10; Also, as described in the section of “Background Art”, since the hair slippage becomes significant when the hardness of the material of the hair is higher than a certain level, such a material having such a high hardness is used for the hair. I couldn't. However, since the anti-slip effect can be obtained by the present invention, it is possible to use such a high-hardness material as the eaves material. As a result, the cutting force and the wear resistance are improved, and the anti-slip effect is a single eaves effect. It can be achieved with a very good kite.
In particular, if an ultra-hard tool material is used as the material, the above-described effects become more remarkable.

  Specific examples of materials include stainless steel and high speed steel having a hardness of about 800 Hv, and examples of super hard tool materials include powder high speed steel, ultra fine particle cemented carbide, cemented carbide, cermet, ceramic sintered body, boron nitride. (BN) There is a sintered body.

Invention 11; Note that the scissors of Invention 9-10 assume that the two blades are made of the same high hardness material, but in order to maintain the cutting force of the scissors, It is preferable to provide a difference in hardness of the blade body material between the blade bodies, and to provide a groove only in the blade body on the high hardness side.
The reason for this is that, in general, the scissors in use are covered with hair oil, but if the sliding surface of two blades with different hardness is covered with a film of hair oil, this oil will be scrubbed. It acts as a lubricating oil for grinding on the surface, and when the heel is opened and closed, the high hardness side sliding surface can polish the low hardness side sliding surface. Therefore, the scissors are polished at the same time as they are used, so that the low-hardness blade body can keep its cutting edge always polished, and the high-hardness blade body is inherently wear-resistant. In addition to the above, since the scraping partner is a low-hardness blade, the blade on the high-hardness side is further less worn. In short, both the blades are maintained in the polished state, and the cutting force is maintained in a good state.
For example, there is a method in which one blade material is made of ceramic, a cut groove is formed in this, and the other blade material is made of stainless steel (for example, hardness 650 Hv). Alternatively, cermet and stainless steel may be used, and any other material combination may be used. If the wear rate of the blade on the low hardness side is fast, the difference in hardness between the blades will be reduced, and conversely the hardness will be low if there is little wear and the polishing effect on the blade on the low hardness side cannot be obtained. It is only necessary to select materials to widen the difference.

In the following, first, embodiments of the invention other than the present invention described in the original application will be described as described in the original application, and finally, an embodiment of the present invention will be referred to.
A cut rod 1A shown in FIG. 1 is provided with cut grooves 3, 3,... Of equal pitch over the entire length of the blade body 2a in one of the two blade bodies 2a, 2b. This cut groove 3 has the shape and arrangement as shown in FIG. 2 to FIG. 3, and the groove width W assumes a hair having a thickness of 0.08 mm, and is about 0.04-0.05 mm. It is. The groove length L is about 1.0 mm, and the pitch width between the cut grooves is about 1.0 mm.
In manufacturing the cut rod 1A, the cutting groove is ground by making a disc grindstone having a thickness corresponding to the groove width W perpendicular to the blade length, and such grinding is performed from the base end of the blade body. The incision grooves 3 are arranged in succession through the tip. As a result, as shown in FIG. 4, the opening 4 of the cut groove 3 is sharply formed at a right angle to obtain the effect of catching the hair X, and the groove width is narrower than the thickness of the hair. Is obtained.
In addition, even if the thickness of the hair is the same as the groove width, the catching effect can be obtained in the same manner, or the hair is sandwiched between the cut grooves as shown in FIG. 5 to prevent the hair from slipping. Further, when one hair is caught in the opening, another hair is caught by this one hair, and another hair is caught by this other hair, so that the hair catching is linked and a good anti-slip effect is obtained.
In addition, if the cutting force decreases with continued use of the scissors, the blade is polished to recover the cutting force, but even if the cutting edge is retracted due to such polishing (the dashed line in FIG. 6 is the polishing surface) The groove 3 is not lost and the anti-slip effect lasts until the end. Further, even if the corner 4 of the opening of the cut groove is rounded with use, a new corner 4 can be made into the opening by polishing the blade surface, and the anti-slip effect can be recovered.

As another example, the cocoon 1 of the invention 3 that assumes 0.08 mm hair is fried. The appearance of the scissors is the same as that shown in FIG. 1, and one blade body 2a is provided with cutting grooves 3, 3,... Over the entire length of the blade and the other blade body 2b is provided with a straight blade. This wrinkle has a groove width W larger than the thickness of the hair (0.08 mm) and less than twice 0.1 mm, and has a margin so that the hair does not clog the cut groove as shown in FIG. The groove width is set. The sliding surface S has a width of about 1.0 mm, but the cut groove 3 has a groove length L of about 0.5 mm so as not to protrude from the sliding surface S. The cut grooves 3 and 3 have an equal pitch width of about 0.4 mm. Further, the groove bottom 4 is provided with a blade 5 having a sharp edge angle as shown in FIG.
According to this wrinkle, as shown in FIG. 7, when the hair is cut, an anti-slip effect is obtained at the opening portion of the cut groove, and slippage is suppressed and straight line alignment becomes easy. Some hairs are cut in a state where they are caught in the cut groove, but since the hairs are in a single column, they can be cut smoothly without any closing resistance.
In particular, hair that has been cut off while being captured in the cut groove may remain caught in the cut groove, but if the hair is continuously cut, the hair once pinched in the cut groove may be shaken off. In this state, the hair does not easily fall out of the cut groove and the hair is not clogged in the cut groove.
In this way, the characteristics of the above-mentioned wrinkles are anti-slip wrinkles, and even when hair enters the cut groove, the resistance when closing the wrinkles is as smooth as conventional cut wrinkles. It is a habit that does not clog hair in the groove.

As another example, there is a wrinkle of invention 4 in which the width of the cut groove is changed to a predetermined groove width in which the hair enters several columns in width. As shown in FIG. 8, the cut groove 3 provided in the cutting edge Ka of the hook has a groove width W of 0.2 mm and a width that allows hair to enter in two or three columns. The length L is a little less than about 1.0 mm so that the groove bottom 4 does not protrude from the sliding surface S, and the pitch width is about 1.0 mm.
According to this scissors, while the hair is cut with the partial blades 6 of the straight blade sandwiched between the adjacent cut grooves 3, some of the hair is supplemented by the cut grooves and cut.

  In general, the thickness of the hair is about 0.08 mm for the Orientals and around 0.06 mm for the Westerns, especially about 0.03 mm for the thin people, but for the same person, the hair thickness is almost constant. It is aligned and the range of thickness is narrow. Therefore, for example, in the case of wrinkles used in Japan, an average oriental hair thickness of 0.08 mm may be set to a predetermined thickness, and the above-described various wrinkles may be formed based on this. Or you may devise various groove widths not only in this.

As another example, FIG. 9 to FIG. 10 show a cut rod 1B, and thin cut grooves 3 and thick cut grooves 5 are alternately arranged at equal pitches only on one blade body 2a. . The narrow cut groove 3 has a groove width of about 0.04-0.05 mm, the groove length is slightly less than about 1.0 mm, and protrudes from the sliding surface S (width is about 0.5 mm) (see FIG. 11). . Further, the thick cut groove 5 has a groove width of about 0.08 mm, and the groove length is 0.3 mm-0.4 mm so that it does not protrude from the sliding surface. These are continuously arranged at a pitch interval of 1.0 mm.
As a result, the hair Xa is caught in the thin cut groove 3 as shown in FIG. 11 to prevent slipping, and the hair Xb is also caught or clogged in the thick cut groove 5 to prevent slipping. Moreover, since the blade 7 is formed in the groove bottom 6, the thick cutting groove 5 can be cut even if hair enters the cutting groove 5.
Further, if the thick cut groove 5 is provided in this way, even if the person has hair thicker than the average, the slip prevention is effective.
As described above, if the thickness of the hair is planned to be gusseted and the groove widths of the cut grooves are provided with different sizes, it is possible to cope with individual differences in hair thickness and variations in hair thickness. In addition, by providing a mixture of cut grooves having different groove widths, the sharpness and feel different from those of a single width cut groove can be obtained.

  The cut ridges may be provided on both of the two blade bodies as well as connecting the cut groove to only one of the blade bodies as described above. Further, a thin cut groove may be formed in one of the blade bodies, and a thicker cut groove may be formed in the other blade body. The width of each cut groove is not limited to a constant width, and may be wide or narrow as long as the above-described conditions are satisfied.

FIGS. 13 (a)-(c), FIGS. 14 (a)-(c), and FIG. 15 are examples in which cut grooves are provided in both blade bodies 2a and 2b, and the contents thereof are as follows.
In FIG. 13 (a), both blades 2a, 2b are provided with narrow cut grooves 3 having a uniform pitch. In FIG. 13B, one blade body 2a is provided with a thin cut groove 3 with a uniform pitch, and the other blade body 2b is provided with a thick cut groove 5 with the same uniform pitch. In FIG. 13C, a narrow cut groove 3 with a narrow uniform pitch is provided in one blade body 2a, and a thin cut groove 3 with a wide uniform pitch is provided in the other blade body 2b. In FIG. 14A, both the blades 2a and 2b are provided with repetitions of the thin cut groove 3 and the thick cut groove 5 at an equal pitch. In FIG. 14B, the thin cut grooves 3 are provided at an equal pitch, and the thick cut grooves 5 provided between the thin cut grooves 3 and 3 are arranged every two of the thin cut grooves 3. Are provided on both blade bodies 2a, 2b. FIG. 14 (c) shows that the narrow cut grooves 3 are provided in one blade body 2b at a narrow uniform pitch, and the thick cut grooves 5 provided between the thin cut grooves 3, 3 are arranged every two thin cut grooves 3. In the other blade body 2a, the thin cut grooves 3 and the thick cut grooves 5 are provided at a wide uniform pitch. FIG. 15 shows a structure in which a thick cut groove 5a having the same length and a thick cut groove 5b having a longer length are alternately provided between the thin cut grooves 3 and 3 having a uniform pitch. The blades 2a and 2b are provided.

  As another example, FIG. 16 shows a corner of the opening of the cut groove 3, and a difference can be obtained in how the hair is caught. Moreover, if it is a scissors which supplements and cuts with a notch groove, the difference in how it is supplemented can be acquired.

FIG. 17 is a cross-sectional view taken along the line B-B in FIG. 14A shown as the embodiment according to the invention 5, and is formed so that the groove bottom 6 of the thick cut groove 5 is applied to the sliding surface S of the blade back, In addition, an acute blade edge 7 is provided on the groove bottom 6, and an angle in the range of 15 ° -89 ° is conceivable. As a result, the hair that has entered the bottom of the thick cut groove can be cut.
As another example, a cut rod 1C shown in FIG. 18 is provided with cut grooves at an equal pitch only at the tip 2-3 cm of one blade body 2a. Is used.

  As another example, a cut rod 1D shown in FIG. 19 has thin cut grooves 3 and thick cut grooves 5 of the same length provided alternately only on one blade body 2a. However, the shape of the cutting edge line is formed so as to bulge out in the vicinity of the center of the cutting edge and to be a position retracted from the hamachi 8 at the base end (reference numeral K in the figure). Therefore, the crossing angle of both cutting edge lines when closing the eyelid can maintain almost the same angle wherever it intersects from the base end to the tip, and as a result, the hair escape characteristics as a cut eyelash are compared from the base end to the tip However, the anti-slip effect is relatively uniform from the proximal end to the distal end, and good usability can be obtained.

  As another example, FIG. 20 is an example of the cut rod 1E of the invention 7, in which the continuous portion Y of the cut groove 3 is arranged at three locations along the blade edge, that is, the cut groove 3 is continuously provided. The portion Y and the straight blade portion Z having no cut groove are repeated. The notch groove 3 is provided with a rough density close to the base end in one continuous portion Y and gradually becomes dense toward the tip. When this cut ridge 1E is used, the cut hair is finished in a waveform Q as shown in FIG. 21, and a feeling different from the straight line alignment is obtained. In addition, the roughness of each cut groove may be any.

  As another example, FIG. 22 is also an example of the cut rod 1F of the invention 7, in which the cut groove 3 is provided roughly at the base end, and a group of continuous portions R that become gradually closer to the tip end are cut into a blade. Repeated 3 times over the whole body length.

As another example, a bag 1G shown in FIG. 23 is obtained by applying the above-described invention to a bag. Two blades, a comb blade body 20 and a rod blade body 30, are pivotally attached. Wide comb blades 21 and narrow comb blades 22 are provided alternately. The intervals between the comb blades 21 and 22 are made uniform. The wide comb blade 21 is provided with several cut grooves 3, and the narrow comb blade 22 is not provided with cut grooves. The cut grooves 3 are shaped and arranged as shown in FIGS. 24 to 25, but the groove width W is about 0.04-0.05 mm, and the groove length L is also about 1.0 mm. is there.
This wrinkle 1G is also a wrinkle with less hair escape due to the cut grooves provided. Further, when closing the heel, there is no rugged resistance feeling when cutting a bundle of hair caught in the concave portion of the blade edge of the comb blade as in the conventional heel, and a smooth closing operation is possible.
Note that the comb blade body may be provided with a cut groove at the cutting edge of the rod blade body without providing the cut groove.

  As another example, a scissors 1H shown in FIGS. 26 to 27 has two blades each composed of comb blades 40 and 50. FIG. The comb blades 40, 50 are formed such that the comb blades 41, 42; 51, 52 are concentric with the pivot axis as the center, and the wide comb blades 41, 51 and the narrow comb blades 42, 52 are mutually connected. It is provided so as to face each other. However, the width (length from the peak to the cutting edge) of the comb blade body 50 that is a moving blade is narrower than the width of the comb blade body 40 that is a stationary blade, and thus the comb blades 51 and 52 of the moving blade are static blades. Are formed shorter than the comb blades 41 and 42. The intervals between the comb blades are uniform. The cutting groove 3 is provided on the side of the comb blade body 40 serving as a static blade. The wide comb blade 41 is provided with several cutting grooves 3, and the narrow comb blade 42 is provided with one cutting groove 3. Is.

  As another example, FIG. 28 is an example in which the cut grooves shown in FIGS. 10 to 12 are applied to the scissors, and thin cut grooves 3 and thick cut grooves 5 are alternately formed at equal pitches on the comb blade 21. The point, the width and length of each incision groove, the slipping and the stopping effect are the same, and the point that the hair 7 is cut by forming the blade 7 on the groove bottom 6 of the thick incision groove 5 is also the same.

As another example, an example in which the invention of the invention 7 is applied to a bag is as follows. First, the arbitrary arrangement of the continuous portion of the cut groove is realized by appropriately arranging a comb blade provided with the cut groove and a conventional comb blade with no straight groove provided. . As for the density of the cut grooves, a plurality of cut grooves may be provided for each comb blade, and the density of the cut grooves may be changed for each comb blade. Or if it is a wide comb blade (for example, width 1cm), you may provide density in this one comb blade.
Alternatively, when the rod is composed of a rod blade body and a comb blade body, the comb blade is left as a conventional straight blade edge, and is connected to the rod blade side like the above-described cut rod. Arbitrary arrangement of the portions and the density of the cut grooves in the continuous portions may be provided.
Depending on how the slits are provided, the wrinkles are divided into comb blades that can be cut without slipping and comb blades that can be cut while sliding. Since such a difference in slip is brought about on the cutting edge line, the amount of hair combing is different for each part of the blade body, and a natural change is obtained in the finish of hair combing.

Each of the scissors 1A-1H described above has a cutting groove cut at a substantially right angle with respect to the longitudinal direction of the blade body. However, as shown in FIGS. On the other hand, the cut groove may be cut at a predetermined inclination angle. As an example, at each intersection C when closing the scissors, respective cut grooves may be provided in a direction perpendicular to the cutting edge lines of the mating blade bodies 2b and 30. Or you may make it incline more, or may incline over the contrary. Thereby, as shown in FIG. 31, one end 4 ′ of the opening of the cut groove becomes an acute angle, the catching effect is increased, and the anti-slip effect is improved. Further, since the cut groove is cut obliquely, the width W _{0 of the} opening becomes wider than the groove width W, and the anti-slip effect is also improved in this respect. Moreover, if the hair is thick in the groove width of the cut groove, it becomes easy to enter the cut groove.
In particular, when the width of the groove is several hairs, it is planned to capture and cut the hair with the slit groove, so that the hair is easily captured with the slit groove as shown in FIG. Since the hair that has entered the groove 3 becomes a column substantially perpendicular to the cutting edge of the mating blade 2b, the hair is cut well.

In addition, the groove width, the mixed arrangement of the thin cut grooves and the thick cut grooves, the pitch, the groove length, the presence or absence of the cut grooves, and the density of the cut grooves may be freely determined.
The above invention can also be applied to a replaceable blade type scissors. In the replacement blade type scissors, the part of the scissors blade is provided as a separate replacement blade from the scissors main body, and the shape of the replacement blade varies depending on the mounting method. If this cutting blade is provided with a notch groove which is a component of the above invention and is attached to the main body of the scissors to form a scissors, the scissors of the above invention are obtained.

  As an embodiment of the present invention, in the above-described cut rod, instead of a substantially straight cut groove, a substantially concave locking groove 3 'having a shallow cut may be provided continuously as shown in FIG. In this case, the opening width of the locking groove 3 'corresponds to the groove width of the cut groove described so far. In this case, the locking groove 3 ′ disappears relatively quickly by polishing, but it is useful when used for a cheap disposable scissor, or can be used for a replaceable blade scissor. Any manufacturing method may be used, but if the blade is pressed out of the blade material, there is a method of simultaneously pressing the locking groove. Alternatively, a locking groove may be retrofitted to the blade body that has reached the completion stage.

This figure is a view of a cutting rod according to the present invention, in which cut grooves are formed on one blade body at an equal pitch. This figure is a partially enlarged view of FIG. This figure is a partially enlarged view of the blade body for showing the cutting groove. This figure is an explanatory view of the state in which the hair is caught by the opening of the cut groove and becomes slippery. This figure is an explanatory view of how the hair enters the cut groove. This figure is a cross-sectional view taken along the line AA of FIG. 3 and explains that the cut groove is not lost even by polishing. This figure is an explanatory view showing that the hair enters with sufficient margin with respect to the groove width when the cut groove has a groove width larger than the thickness of the hair and less than twice. This figure is an explanatory view showing that the cut groove is formed to have a predetermined groove width in which the hair enters several columns of width, and the hair is cut in the cut groove. This figure is a diagram of another cutting rod according to the present invention, in which thin cut grooves and thick cut grooves are alternately repeated at a uniform pitch. This figure is a partially enlarged view of FIG. This figure is a partially enlarged view of the blade body of FIG. 10, and explains how the thin cut groove 3 and the thick cut groove 5 are related to the thickness of the hair. This figure is a diagram showing how the narrow cut groove 3 and the thick cut groove 5 in FIG. This figure is a diagram showing an example of continuous arrangement of cut grooves. This figure is a diagram showing an example of continuous arrangement of cut grooves. This figure is a diagram showing an example of continuous arrangement of cut grooves. This figure is a diagram showing an example in which the corner of the opening of the cut groove is taken. This figure is a cross-sectional view taken along the line BB in FIG. 14 and is a view in which an acute blade edge angle is provided at the bottom of the cut groove. This figure is the figure which provided the notch groove only in the front-end | tip part of the blade body. This figure is a view of still another cut scissors of the present invention. This figure is a view of a cut rod in which the portion Y where the cut groove is continuously provided and the straight blade portion Z where there is no cut groove are repeated, and the groove combs are provided in one cut groove continuous portion. . This figure is a diagram exemplifying the finish by the cut tack shown in FIG. This figure is a view of a cut scissor in which the cut grooves are repeatedly divided into sections that become gradually denser from the rough than the base end toward the front end. This figure is a view of the scissors of the present invention, in which cut grooves are formed in one blade body at an equal pitch. This figure is a partially enlarged view of FIG. This figure is a partially enlarged view of the blade body for showing the cutting groove. This figure is a diagram of another bag of the present invention. This figure is a partially enlarged view of FIG. This figure is a partially enlarged view of a thin comb groove and a thick cut groove that are alternately repeated at equal pitches on the comb comb blade. This figure is a view in which the direction of the cut groove in the cut ridge is inclined so as to be perpendicular to the cutting edge line of the mating blade body 2b when the heel is closed. This figure is a view in which the cutting groove is inclined in the same manner as in FIG. 29. This figure is an enlarged view of the cut groove of FIGS. 29-30. This figure is a diagram in the case where several slanted cut grooves are formed in the width of the hair. In this figure, a substantially concave locking groove with a shallow notch is provided in place of the notch groove. This figure is a diagram of a conventional cut wrinkle and shows how the hair slips. This figure is an explanatory view showing that the cut marks of the hair are not aligned in a straight line. This figure is a view of a saw bar which is a kind of cut barb and has a recess at the cutting edge. This figure is a view of a comb blade having a U-shaped concave portion at the blade tip. This figure is a diagram of a comb blade having a V-shaped concave portion at the blade tip. This figure is a diagram for explaining that the recess of the blade edge disappears by polishing in the ridge shown in FIGS. This figure is a diagram for explaining the scrubbing surface S on the back of the blade of the scissors.

Claims (1)

A cutting ridge whose blade is a straight blade, having a groove width equal to or smaller than a predetermined hair thickness, and a shallow recess substantially concave-shaped locking groove formed on the linear blade, and the locking groove A cutting blade characterized in that the divided partial blades of the straight blades are alternately provided.

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