JP2008178467A - Thinning scissors - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide highly practical thinning scissors giving no discomfort to a person having hair cut by pulling or damaging the hair and allowing a hairdresser to constantly lightly cut the hair without feeling a resistance. <P>SOLUTION: The thinning scissors are openably/closably constituted by pivoting a blade plate 2 formed with a blade edge 1 and a comb-like blade plate 5 projectingly having a plurality of comb teeth 3 in an aligned state via grooves, at an intersection part of both blade plates 2 and 5. The side edge shape of the comb tooth 3 is so defined that a groove bottom part 8 between comb teeth 3 becomes wider compared with the groove opening part 9, the broad groove bottom 8 is provided with a flat bottom edge part 10 approximately in parallel to the alignment direction of the comb teeth 3, and side edge base end sides of the left/right comb teeth 3 adjoined to the groove 4 are provided with concave-curved angle edge parts 11 for smoothly connecting the side edge 3a of the comb teeth 3 to the flat bottom edge part 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to plows.

  For example, in a general sledge as disclosed in Patent Document 1, a blade plate having a blade edge and a comb blade plate in which a large number of comb blades are juxtaposed in a juxtaposed state are pivoted at the intersection of both blade plates. The hair is supported and held at the tip edge of the comb blade, the hair held and supported is cut by the blade edge of the blade plate, and the hair accumulated at the bottom of the groove between the comb blades is the blade. It is comprised so that it cannot cut | disconnect with the blade edge of a board.

  By the way, the sukiyaki cuts only the hair supported and held at the tip edge of the comb blade among the hair that has entered between the two blade plates as described above, and does not cut the remaining hair accumulated at the bottom of the groove. When the plows inserted into the hair for cutting are extracted, the remaining hair is extracted along the bottom of the groove.

  However, in the conventional sukiyasu, when pulling out the remaining hair (especially when quickly plucking the sukiyen from the hair), there is a feeling of resistance between this hair and the sukiyaki (groove bottom between the comb blades). Occasionally, the feeling that the hair is caught on the plow (comb-like blade plate) may interfere with the barber work (cutting) of the plow operator, or may cause discomfort to the treated person.

  Therefore, in order to improve hair removal from the bottom of the groove conventionally, for example, as shown in FIG. 1, the bottom edge shape of the groove bottom B between the comb blades A is made as smooth as possible. Although it has been tried, the above resistance has not been resolved. In FIG. 1, reference numeral C denotes hair and D denotes a comb-shaped blade.

JP 2005-323951 A

  As a result of various studies, the present invention has been made in the past as a result of various studies, and conventionally, the hair that tends to spread toward both ends of the groove bottom by making the bottom edge of the groove bottom into a smooth round bottom. This was solved by finding that the movement of the hair was blocked by the round bottom shape, and the hair was densely concentrated in the center of the groove bottom, preventing the hair from being pulled out. The hair collected on the bottom of the groove without being held can be pulled out from the bottom of the groove smoothly. This is a tool that provides unprecedented practical suki noodles that do not cause discomfort to the treated person, and that the operator can always perform light cutting without feeling resistance. is there.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A blade plate 2 having a blade edge 1 and a comb-shaped blade plate 5 in which a plurality of comb blades 3 are juxtaposed in a juxtaposed manner through grooves 4 are pivotally attached at the intersection of both blade plates 2 and 5 to open and close. The hair 7 supported by the tip edge 6 of the comb blade 3 is cut by the blade edge 1 of the blade plate 2, and the hair 7 collected at the groove bottom 8 between the comb blades 3 is formed on the blade plate 2. A scissors configured not to be cut by the blade edge 1, and the side edge shape of the comb blade 3 so that the groove bottom 8 between the comb blades 3 is wider than the groove opening 9. And a flat bottom edge 10 substantially parallel to the parallel arrangement direction of the comb blades 3 is provided on the wide groove bottom 8 so that the groove bottom 8 has a wide flat bottom shape instead of a round bottom shape, A concave curved corner edge 11 that smoothly connects the side edge 3a of the comb blade 3 and the flat bottom edge 10 is provided on the side edge base end side of the left and right comb blades 3 adjacent to the groove 4. It is characterized by It is those relating to like scissors.

  2. The plow according to claim 1, wherein the flat bottom edge portion 10 is formed so as to be flat in a direction substantially perpendicular to the direction of entry of the hair 7 entering from the groove opening 9. It is concerned.

  Further, the concave curved corner edge portion 11 is provided on the protruding direction side of the comb blade 3 from a virtual straight line I connecting the ends of the adjacent flat bottom edge portions 10. It relates to the sukiyaki described in any one item.

  Further, the comb blade 3 is gradually widened from the proximal end side to the distal end side so that the groove 4 between the comb blades 3 is gradually widened from the groove opening portion 9 toward the groove bottom portion 8. 4. The plow according to any one of claims 1 to 3, wherein the plow is configured to be widened forward.

  Since the present invention is configured as described above, the hair collected on the groove bottom without being supported and held at the tip edge of the comb blade can be smoothly extracted from the groove bottom. The comb-like blade plate does not get caught and the hair is pulled or damaged, so that the treated person does not feel uncomfortable, and the operator always feels comfortable without feeling resistance. It will be a sukiyaki that is extremely practical and unprecedented.

  In the inventions according to claims 2 and 3, the present invention can be realized more easily and is more practical.

  In the invention of claim 4, the capacity of the bottom of the groove is increased, and the hair is more easily removed from the bottom of the groove.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  The comb blade 5 is inserted into the hair, and the hair 7 sandwiched between the blade 2 and the comb blade 5 is cut. At this time, the hair 7 on the tip edge of the comb blade 3 is cut by the blade edge 1 of the blade plate 2, and the hair 7 (hair 7 collected on the groove bottom 8) entering the groove 4 between the comb blades 3 is Not cut.

  Further, when the comb blade 5 inserted into the hair is removed, the hair 7 accumulated in the groove bottom 8 spreads and spreads evenly over the wide flat bottom edge 10 and the concave curved corner edge 11. It will be satisfactorily extracted from the groove bottom 8 while abutting.

  That is, as shown in FIG. 1, when the groove bottom portion B has a round bottom shape, an arc that recurs the movement of the hair C to be dispersed (to move toward both ends of the groove bottom portion B) is formed. On the contrary, the hair C concentrates at the center of the bottom of the round-bottomed groove and becomes a bundle, and the extraction path of the hair C concentrates at the center of the groove bottom, so that the hair C does not come out well, and the comb blade D However, according to the present invention, the groove bottom 8 has a wide plate shape as shown in FIG. Since the movement is performed smoothly without resistance, and each hair 7 comes out in contact with the flat bottom edge 10 in a dispersed state, the hair 7 does not concentrate at the center of the groove bottom, and the extraction path of the hair 7 is a groove. It will be distributed over the entire bottom 8 and the hair 7 will be very easy to pull out, and the comb blade 5 will be pulled out. Feeling of resistance when the take is to be reduced significantly.

  Further, when both the blade plates 2 and 5 are closed, a slight gap remains between the groove bottom portion 8 and the blade edge 1 of the blade plate 2, and the hair 7 (hair 7 accumulated in the groove bottom portion 8) in this gap is cut. However, with the conventional shape, the hair is densely bundled at the center of the groove bottom, and the bundled hair comes into contact with the blade edge of the blade plate, and in this state, when trying to pull out wrinkles from the hair, A strong friction is generated between the blade edge of the blade plate and the hair, and the removal is very bad. In this regard, according to the present invention, since the hair 7 is dispersed widely and thinly on the groove bottom portion 8 as described above, when pulling out the wrinkles with both the blade plates 2 and 5 closed, the edge 1 of the blade plate 2 and It is difficult for the hair 7 to come into contact with the hair 7 and the omission is improved accordingly.

  Further, the side edges 3 a of the comb blade 3 and the flat bottom edge 10 are smoothly connected by the concave curved corner edges 11 on both sides of the flat bottom edge 10, so that the hair 7 has the flat bottom edge 10. In addition to being distributed over the concave curved corner edge 11, the hair 7 is smoothly removed from the corner edge of the groove bottom 8, and the hair 7 is not caught at this corner edge. This also contributes to a significant reduction in resistance when the comb-like blade plate 5 is pulled out.

  Accordingly, by providing the flat bottom edge 10 on the groove bottom 8 which is wider than the opening 9, it becomes possible to pull out the hair 7 while making the hair 7 abut in a dispersed state. By making the edge a smooth concave curved corner edge 11, the hair 7 can be smoothly pulled out along the concave curved corner edge 11 as well as the flat bottom edge 10, The hair 7 that has entered the groove 4 between the comb blades 3 when the comb blade 5 is pulled out can be pulled out without feeling resistance, and cutting can be performed while pulling out the hair 7 well even if operated quickly. It is easy to handle and can be used as a sukiyaki with excellent commercial value.

  Further, for example, the comb blade 3 is gradually widened from the proximal end side toward the distal end side so that the groove 4 between the comb blades 3 gradually becomes wider from the groove opening 9 toward the groove bottom portion 8. Can be cut in a plurality of times by a plurality of concave holding edges, and the hair 7 supported and held by each concave holding edge can be cut, and the hair 7 entering the groove 4 can be cut. This is a plow having excellent practicality that can reach the groove bottom 8 in a dispersed state more smoothly.

  Specific embodiments of the present invention will be described with reference to FIGS.

  In the present embodiment, a blade plate 2 having a blade edge 1 and a comb-shaped blade plate 5 in which a large number of comb blades 3 are juxtaposed in a juxtaposed manner via grooves 4 are used. The hair 7 supported by the tip edge 6 of the comb blade 3 is cut by the blade edge 1 of the blade plate 2 and pivoted by a fulcrum screw 12 so as to be formed in the groove bottom 8 between the comb blades 3. The accumulated hair 7 is a plow configured so as not to be cut by the blade edge 1 of the blade plate 2, and the groove bottom 8 between the comb blades 3 is wider than the groove opening 9. The side edge shape of the comb blade 3 is set, and a flat bottom edge portion 10 substantially parallel to the parallel arrangement direction of the comb blades 3 is provided on the wide groove bottom portion 8 so that the groove bottom portion 8 has a round bottom shape. The side edge 3a of the comb blade 3 and the flat bottom edge portion 10 are smoothly connected to the base end side of the left and right comb blades 3 adjacent to the groove 4. Concave corner 1 1 is provided.

  Specifically, a plurality of concave holding edges for supporting and holding the hair 7 are provided on the tip edge 6 of the comb blade 3, and the groove 4 between the comb blades 3 gradually widens from the groove opening 9 toward the groove bottom 8. The comb blade 3 is configured to be widened gradually from the base end side to the tip end side so that the hair 7 that has entered between the comb blades 3 by the wide groove bottom portion 8 is satisfactorily obtained. Hair that can be dispersedly supported and can be cut by a single cutting operation by increasing the amount of hair 7 supported and held by the tip edge 6 when the comb blade 5 is inserted into the hair. While the amount of 7 is increased, the hair 7 does not accumulate too much at the groove bottom 8 so that the hair 7 can be satisfactorily extracted from the groove bottom 8. As will be described later, in this embodiment, even when the amount of hair 7 supported and held on the tip edge 6 is increased, the resistance when cutting the hair 7 is extremely reduced.

  That is, this embodiment is different from the conventional example in which the groove bottom B as shown in FIG. 1 has a round bottom shape and the groove width is substantially the same from the groove opening to the groove bottom, as shown in FIGS. The bottom 8 has a flat bottom shape that is wider than the groove opening 9 (wider from the groove opening 9 toward the groove bottom 8), and the hair 7 that has entered from the groove opening 9 smoothly moves to the groove bottom 8. When the comb-like blade plate 5 is pulled out from the head hair in a dispersed state, the flat bottom edge 10 and the concave curved corner edge are distributed in a state where the hair 7 is widely dispersed from the flat bottom edge 10 to the concave curved corner edge 11. The hair 7 can be pulled out along the portion 11, and the hair 7 can be pulled out very efficiently and smoothly without concentrating on the center of the bottom of the round-bottomed groove as in the conventional example. Comb blade while cutting a lot of hair 7 supported and held at the tip edge 6 of the comb blade 3 without resistance. The hair 7 that contains can be pulled out smoothly in between, can be out of scissors to a more rapid hair, it is those that can significantly improve the workability of the cutting without damaging the hair 7.

  Each part will be specifically described.

  A plurality of comb blades 3 project in a juxtaposed manner on the comb-shaped blade plate 5 in a state of being curved along the opening and closing track of the blade edge of the blade plate 2 pivotally attached to the comb-shaped blade plate 5 at the crossing portion. . The side edge 3a of the comb blade 3 is formed so that the comb blade 3 is gradually widened from the proximal end side toward the distal end side so as to gradually widen from the proximal end side toward the proximal end side of the comb blade. The comb blade 3 is set to be curved toward the same direction (the tip side of the comb-shaped blade plate 5) so that the width is gradually narrowed. Further, while the right side edge 3a in FIG. 3 curves deeper toward the comb blade base end side, the degree of curvature of the left side edge 3a is substantially constant.

  Accordingly, the groove 4 between the comb blades 3 gradually becomes wider from the groove opening 9 side toward the groove bottom 8 side, and the groove 7 from the groove opening 9 does not stagnate the hair 7 entering between the comb blades 3. It can be moved to the bottom 8. Further, since the groove bottom portion 8 becomes wider, the capacity of the groove bottom portion 8 increases accordingly, and even when a large number of hairs 7 enter, it is difficult to be densely packed, and even when the double-edged blades 2 and 5 are pulled out, they are resistant. The hair 7 can be smoothly pulled out from the groove bottom 8 without any problems.

  In the present embodiment, the grooves 4 between the comb blades 3 are formed using wire electric discharge machining, laser machining, or plasma machining capable of curved surface machining. Therefore, the groove 4 having a narrow groove opening 9 and a wide groove bottom 8 that cannot be formed when the grooves 4 are linearly cut and formed between the comb blades 3 using a grindstone can be easily formed. In addition, the concave curved corner edge 11 of the groove bottom 8 can be easily formed.

  The groove bottom 8 is an imaginary straight line that connects the flat bottom edge 10 that is flat in a direction substantially orthogonal to the entry direction of the hair 7 that enters from the groove opening 9 and the ends of the adjacent flat bottom edges 10. It is comprised by the concave curved corner | angular edge part 11 provided in the protrusion direction side (comb blade front end side) of the comb blade 3 from I (namely, the constriction edge formed in the base end side of the comb blade 3 is a lower part in the figure) I try not to droop too much.) Therefore, when the hair 7 enters the groove 4, the hair 7 naturally moves to the groove bottom portion 8 by its own weight, and since the groove bottom portion 8 is wide and flat and has no irregularities that hinder the movement of the hair 7, the hair 7 is naturally dispersed. Thus, the groove bottom 8 is in contact with the entire groove.

  That is, the groove bottom portion 8 has a flat bottom shape with rounded corners (curved R shape), so that when the comb-like blade plate 5 is pulled out from the hair, the presence of the flat bottom edge portion 10 leads to the groove 4 between the comb blades 3. The hair 7 that has entered can be dispersed and moved to the left and right along the flat bottom edge 10 and does not concentrate in the central part, and comes out in a state of being widely dispersed in the flat bottom edge 10 and also on the side edge 3a of the comb blade 3. The hair 7 that has reached the concave curved corner edge 11 and the hair 7 that is about to spread along the flat bottom edge 10 can be satisfactorily pulled out without the concave curved corner edge 11 being caught. The hair 7 can be pulled out by using it, and the conventional problems do not occur.

  The width of the flat bottom edge 10 of the groove bottom 8 is about 55% of the width of the groove bottom 8 (the maximum width of the groove 4). The width of the flat bottom edge 10 varies depending on the parallel pitch of the comb blades 3, but in order to obtain a smooth pulling comfort, the ratio of the width of the groove bottom 8 to the width of the flat bottom edge 10 is 4: 1 or more. More preferably, it has been confirmed by various experiments that it is desirable to set the ratio to 2: 1 or more (50% or more of the width of the groove bottom 8) (when the flat bottom edge 10 is too narrow, the concave curved corner edge) 10 becomes larger, and movement to both sides of the hair 7 is hindered.)

  Further, a concave holding edge for supporting and holding the hair 7 is formed at the tip edge 6 of the comb blade 3 of the comb-shaped blade plate 5, and the hair 7 supported and held by the concave holding edge is connected to the blade edge 1 of the rod-shaped blade plate 2. It is comprised so that it may cut | disconnect by. As shown in FIG. 5, the tip edge 6 of the comb blade 3 may be composed of an inclined guide edge 19 and a straight edge 20 without providing a concave holding edge. Further, the side edge 3a of the comb blade 3 is not limited to a curved shape, and may be a linear shape as illustrated in FIG. Further, the width of the flat bottom edge 10 of the groove bottom 8 in FIG. 5 is set to about 50% of the width of the groove bottom 8.

  Specifically, the tip edge 6 of the comb blade 3 is provided with a deviated U-shaped edge or a deviated V-shaped edge composed of a linear inclined long side portion 13 and an inclined short side portion 14 provided so as to be opposed thereto. At the same time, the tip of the inclined long side portion 13 is formed so as to protrude toward the blade plate 1 side than the tip of the inclined short side portion 14, and this offset U-shaped edge or the offset V-shaped edge The inclined long side portion 13 is formed so as to be an inclined guide edge for guiding the hair 7 to the inclined short side portion 14 side, and the inclined short side portion 14 is an inclined long side serving as the inclined guide edge. The hair 7 guided by the portion 13 is formed to be a blocking edge that prevents the hair 7 from entering between the comb blades 3, and the inclined short side portion 14 and the base portion 13 a of the inclined long side portion 13 form the comb. A concave edge 15 formed near one end of the blade 3 (close to the base end in this embodiment) is used as the concave holding edge. In the figure, reference numeral 16 is a thumb hole, and 17 is a ring finger hole. In addition, the length of the inclined long side portion 13 and the inclined short side portion 14 are set to be considerably longer than the inclined short side portion 14 so that the ratio of the length of the inclined long side portion 13 to the inclined short side portion 14 is at least 4: 1.

  In the present embodiment, a plurality of concave holding edges are arranged side by side on the tip edge of the comb blade 3. Specifically, a plurality of the offset U-shaped edges may be arranged in parallel, or a simple U-shaped edge having no inclined guide edge may be arranged in parallel with the offset U-shaped edges. In the present embodiment, in addition to the concave edge portion 15, a concave groove 18 having substantially the same shape as the concave edge portion 15 that supports and holds the hair 7 overflowing and discharged from the concave edge portion 15 is provided on the lower side of the concave edge portion 15. 4 are arranged side by side along the closed orbit of the blade plate 2. Further, in order to arrange the four concave grooves 18 side by side, in the present embodiment, the comb blade 3 is formed in a widening shape whose tip side is considerably wider than the base end side. Note that the number of the recessed grooves 18 arranged in parallel can be set as appropriate, such as one shown in FIG. Further, the width of the flat bottom edge 10 of the groove bottom 8 in FIG. 4 is set to about 53% of the width of the groove bottom 8.

  Since the present embodiment is configured as described above, when the comb blade 5 is inserted into the hair and the hair 7 sandwiched between the blade 2 and the comb blade 5 is cut, the tip edge of the comb blade 3 is cut. The upper hair 7 is cut by the blade edge 1 of the blade plate 2, and several to dozens of hairs 7 (hair 7 accumulated in the groove bottom portion 8) entering the groove 4 between the comb blades 3 are not cut.

  When the comb-like blade plate 5 inserted into the hair is cut out to cut the hair 7 at different sites, the hair 7 accumulated in the groove bottom portion 8 has a wide flat bottom edge portion 10 and a concave curved corner edge portion 11. It will be extracted from the groove bottom 8 while abutting in a state of spreading and dispersing evenly throughout.

  That is, as shown in FIG. 1, when the groove bottom portion B has a round bottom shape, an arc that recurs the movement of the hair C to be dispersed (to move toward both ends of the groove bottom portion B) is formed. On the contrary, the hair C concentrates at the center of the bottom of the round-bottomed groove and becomes a bundle, and the extraction path of the hair C concentrates at the center of the groove bottom, so that the hair C does not come out well, and the comb blade D However, according to the present embodiment, the groove bottom 8 has a wide flat plate shape as shown in FIG. Is smoothly moved without resistance, and each hair 7 comes out in contact with the flat bottom edge 10 in a dispersed state, so that the hair 7 does not concentrate at the center of the groove bottom, and the extraction path of the hair 7 is It will be distributed over the entire groove bottom 8 and the hair 7 will be very easy to pull out. Feeling of resistance when the take can have will be greatly reduced.

  Further, when both the blade plates 2 and 5 are closed, a slight gap remains between the groove bottom portion 8 and the blade edge 1 of the blade plate 2, and the hair 7 (hair 7 accumulated in the groove bottom portion 8) in this gap is cut. However, in the conventional shape, the hair is concentrated at the center of the groove bottom to form a bundle (a diameter larger than the gap width), and the bundled hair comes into contact with the blade edge of the blade plate. If the hair is to be pulled out of the hair, a strong friction is generated between the blade edge of the blade plate and the hair, and the removal becomes very bad. In this respect, according to the present embodiment, the hair 7 is widely and thinly dispersed on the groove bottom portion 8 as described above. Therefore, when pulling out the wrinkles with both the blade plates 2 and 5 closed, the edge 1 of the blade plate 2 is removed. And the hair 7 are less likely to come into contact with each other, and the omission is improved accordingly.

  Further, the side edges 3 a of the comb blade 3 and the flat bottom edge 10 are smoothly connected by the concave curved corner edges 11 on both sides of the flat bottom edge 10, so that the hair 7 has the flat bottom edge 10. In addition to being distributed over the concave curved corner edge 11, the hair 7 is smoothly removed from the corner edge of the groove bottom 8, and the hair 7 is not caught at this corner edge. This also contributes to a significant reduction in resistance when the comb-like blade plate 5 is pulled out.

  Accordingly, by providing the flat bottom edge 10 on the groove bottom 8 which is wider than the opening 9, it becomes possible to pull out the hair 7 while making the hair 7 abut in a dispersed state. By making the edge a smooth concave curved corner edge 11, the hair 7 can be smoothly pulled out along the concave curved corner edge 11 as well as the flat bottom edge 10, The hair 7 that has entered the groove 4 between the comb blades 3 when the comb blade 5 is pulled out can be pulled out without feeling resistance, and cutting can be performed while pulling out the hair 7 well even if operated quickly. It is easy to handle and can be used as a sukiyaki with excellent commercial value.

  Further, a plurality of concave holding edges for supporting and holding the hair 7 can be provided on the tip edge 6 of the comb blade 3, and the groove 4 between the comb blades 3 is gradually widened from the groove opening 9 toward the groove bottom 8. Since the comb blade 3 is configured so as to be widened gradually from the proximal end side toward the distal end side, the plurality of comb holding edges are supported and held by each concave holding edge in a plurality of times. The cut hair 7 can be cut, and lighter cutting can be performed, and the hair 7 entering the groove 4 can be more smoothly reached the groove bottom 8 in a dispersed state.

  Therefore, this embodiment is extremely commercial value that can extract hair well when it is required to quickly put in and out wrinkles, and can cut many hairs lightly and reliably at once. High sukiyaki.

  The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is an expansion outline explanatory side view of the principal part of a prior art example. It is a schematic explanatory drawing of a present Example. It is an expansion outline explanatory side view of the principal part of a present Example. It is an expansion outline explanatory side view of the principal part of another example. It is an expansion outline explanatory side view of the principal part of another example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blade edge 2 Blade plate 3 Comb blade 4 Groove 5 Comb blade 6 Tip edge 7 Hair 8 Groove bottom 9 Groove opening
10 Flat bottom edge
11 Concave corner

Claims (4)

  A comb blade comprising a blade plate having a blade edge and a comb-like blade plate in which a large number of comb blades are juxtaposed in a state of being arranged in parallel through grooves, and is configured to be openable and closable at the intersection of both blade plates. The hair supported on the leading edge of the blade is cut by the blade edge of the blade plate, and the hair collected at the bottom of the groove between the comb blades is a sledge configured so as not to be cut by the blade edge of the blade plate, A side edge shape of the comb blade is set so that a groove bottom portion between the comb blades is wider than a groove opening portion, and a flat surface substantially parallel to the parallel arrangement direction of the comb blades is set on the wide groove bottom portion. A bottom edge portion is provided, and the groove bottom portion is configured to have a wide flat bottom shape instead of a round bottom shape, and the side edge of the comb blade and the flat edge are formed on the side edge proximal ends of the left and right comb blades adjacent to the groove A plow having a concave curved corner edge that smoothly connects the bottom edge.   2. The plow according to claim 1, wherein the flat bottom edge is formed so as to be flat in a direction substantially perpendicular to the direction of entry of the hair entering from the groove opening.   The said concave curve corner | angular edge part was provided in the protrusion direction side of the comb blade from the virtual straight line which connects the edge parts of the said adjacent flat bottom edge part, The any one of Claims 1, 2 characterized by the above-mentioned. Nosuki-don.   The comb blade is configured to be widened gradually from the proximal end side toward the distal end side so that the groove between the comb blades gradually increases from the groove opening toward the groove bottom. The plow as described in any one of Claims 1-3 characterized by these.

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