JP2012187355A - Hairdressing scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide hairdressing scissors of a kind of thinning scissors, with which a new hairdressing technique for adjusting the rate of hairs to be cut at every cutting position is achieved to increase or reduce hair volume.SOLUTION: Both of blade bodies performing cutting operation by the opening and closing motion of fingers, are formed into a rough blade having multiple projecting teeth each having an end side provided with a cutting edge. One of insertion holes for a pivot pin for connecting both blade bodies is formed into an elongated hole, and one of the blade bodies is movable in the longitudinal direction of the elongated hole relative to the other blade body. Every time cutting is performed, the rate of the amount of hairs to be cut to the amount of hairs not to be cut, is freely changed in one hand holding the scissors.

Description

  The present invention relates to a barber for barber (including beauty), and both of the blades are uneven (uneven blades), and the type of heel called suki-mochi that cuts only part of the pinched hair It is about.

  In general plows, one blade has a fine irregular shape, and a blade is provided at the tip of the convex tooth. When the hair is cut with a plow, only the hair sandwiched between the tips of the convex teeth is cut, and the hair at the valleys (concave portions) between the convex teeth is not cut. Therefore, when the hair is cut with a plow, the amount of hair ahead of the cutting position is reduced, and the drooping hair can be trimmed into a well-shaped shape.

  In order to maintain a good sharpness, the blade is used by grinding the blade. However, the plow with the above structure wears only the portion that meshes with the convex teeth of the straight blade, resulting in poor sharpness, while the concave portion is The facing parts maintain good sharpness without being worn. Therefore, for the purpose of reducing the number of times of grinding the scissors, the following scissors that can be fixed by shifting the blade bodies with a pitch of a convex tooth or a stroke smaller than this with respect to the straight blade are disclosed in Patent Documents 1 to 3 below. Has been proposed.

  Further, Patent Document 1 discloses that in a barber or beauty salon in which both blades of the scissors are concavo-convex blades, one of the fulcrum pins on which the two blades are pivotally attached is defined as one of the blades. Can be moved in the longitudinal direction of the blade body with respect to the other, and by providing a locking means for locking the relative positions of the blade body and the fulcrum pin provided with a long hole at a plurality of positions of the movement stroke, A plow has been disclosed that enables the longitudinal pivoting position of the body to be changed.

  By changing the pivoting position of both blades, the meshing length of this structure changes the meshing length of the blades formed on the convex teeth on both sides, and the amount of hair that is cut when pinched remains. The amount of hair changes. For this reason, the use of the plow having the structure eliminates the need to use a plurality of plows having different ratios of hair to be cut and hair to be cut.

  Hairstyles are one of the major factors that determine a person's impression of others. Also, depending on the person, the color, amount, thickness, hardness, direction of growing hair, whether it is curled, whether it is curled, and the degree and direction of bending when curled There are various. Also, the shape of the face and head varies from person to person. Under such circumstances, various barber techniques have been conceived and used in order to prepare hairstyles that are beautiful and give a good impression to people while responding to the needs of customers. The sukiyaki mentioned above is used as a tool to suppress the swelling of hair as one of such barber techniques.

Japanese Patent Laid-Open No. 2001-300156 Japanese Patent Laid-Open No. 2002-972 JP 2003-210870 A

  The inventor of the present application proposes a barber technique for making a better hairstyle by partially inflating or thinning the hair, and intends to spread the technique. The technique cuts a portion of the hair, similar to that performed with a sukiyaki, but it swells into the cut portion by changing the distance from the root of the hair to be cut and the proportion of the hair to be cut. The hairstyle is arranged by holding the hair or holding the bulge.

  In order to practice this technology, how much the length from the root of the hair to be cut and the proportion of hair to be cut will be expanded or thinned according to the amount, hardness, and curl of the hair. Depending on the, you have to make fine adjustments for each cutting position.

  This new barber technique is performed by grasping and lifting a bunch of hair taken up in consideration of the growing position, and putting a ridge in multiple times from the base of the lifted hair. The individual cutting operations for performing this barber are the same as the operations using a conventional sledge for cutting a part of the pinched hair. However, it is virtually impossible to perform this barber using a conventional structure. This is because it is necessary to slightly change the ratio of the hair to be cut at each cutting position and the hair to be left uncut according to the shape to be inflated or thinned.

  Although there are a plurality of plows having different cutting ratios, it is troublesome to change the prick every time it is cut, and not many types of plows having different cutting ratios are prepared. Moreover, in the heel which can adjust the cutting amount as described in Patent Document 1, an operation using both hands is necessary for adjusting the cutting amount, and the hair bundle is lifted with one hand. It is impossible to do this.

  For this reason, when practicing the above barber technique, an operation of pulling out part of the hair from the bundle of hair that has been picked up with a knitting bar and then cutting the pulled-out hair with a general scissors or scissors is performed. There was a need to do. However, this operation is time-consuming and requires a high level of skill, and hinders the spread of the new barber technique described above.

  The present invention has been made to solve this problem. For each cutting operation, the hair selected and taken out from the head hair is divided into the amount of hair to be cut and the amount of hair to be left uncut. The task is to provide a kite that can be cut by changing the ratio with one hand with a kite.

  In the barge for barber of this invention, both the blades 1a and 1b that perform the cutting action by the opening and closing operation are the concavo-convex blades provided with the cutting blades 23 on the tip sides of the many convex teeth 21, and these two blades are connected. One of the insertion holes of the fulcrum pin 12 is a long hole 11 so that one of the blades 1a can be moved in the longitudinal direction with respect to the other 1b.

  The barber of this invention pushes the thumb inserted through the thumb insertion hole 13 provided at the operation end of one blade body 1a in the longitudinal direction of the blade body 1a substantially orthogonal to the opening / closing operation direction of the blade body 1a. Both blade bodies 1a, so that one blade body 1a moves relative to the other blade body 1b in the longitudinal direction of the blade body only by moving or moving without performing an operation of removing the locking tool. 1b is bound.

  The long hole 11 is formed in the blade body 1a on the side where the thumb insertion hole 13 is provided at the operation end, and the fulcrum pin insertion hole of the blade body 1b on the side where the index finger or little finger is put on the operation end is a round hole 25.

  It is preferable to apply a uniform or intermittent resistance to the relative movement in the longitudinal direction of the blade body 1b with respect to the other blade body 1b, or to apply a repulsive force in one direction.

  For example, a friction plate 24 having a friction surface in sliding contact with the surface of the blade body 1a provided with the long hole is provided at the end portion of the fulcrum pin 12 where the long hole 11 is provided. The friction surface is a surface of a resin or a low friction material, and applies a frictional force that is uniform at each position of movement and does not impose a burden on the operator's thumb with respect to the relative movement of the blade body 1a. It is preferable that the friction surface is a surface orthogonal to the axis of the fulcrum pin 12 from the viewpoint of stabilizing the friction force. When such a friction surface is provided, in order to stabilize the contact force between the friction surface and the blade body surface, between the blade body 1b not provided with a long hole and the head portion 26 of the fulcrum pin on that side. Furthermore, it is preferable to interpose a spring 28 that elastically presses the friction surface against the surface of the blade body 1a provided with a long hole.

  In order to give intermittent resistance to the relative movement in the longitudinal direction of the blade body, for example, the side of the long hole 11 is made into a corrugated side 33 having a small frictional resistance and being more easily elastically deformed than metal. As a specific structure, a groove 31 along the side surface of the long hole 11 is formed on the mating surface of the blade body 1a provided with the long hole with the other blade body 1b, and the side facing the fulcrum pin 12 is corrugated in this groove. The synthetic resin plate 32 which is the side 33 is fitted, and intermittent resistance is given to the movement of the fulcrum pin 12 along the long hole 11 by the corrugated side 33 of the resin plate.

  In order to apply a repulsive force in one direction to the relative movement of the blade body, the spring 43 is provided between the blade body 1a on the side where the long hole is provided and the other blade body 1b or between the fulcrum pin 12. What is necessary is just to interpose. This spring is preferably provided so that the blade body 1a provided with the thumb insertion hole 13 is adjusted to the root side (counter blade edge side), and is provided so as not to be exposed at the pivoting portion of both blade bodies. This structure is particularly effective for ridges in which the pitch p of the convex teeth 21 is short.

  The barber for scissors according to the present invention inserts a thumb into the thumb insertion hole provided at the operation end of one blade body, and hangs another finger on the operation end of the other blade body with respect to the other finger. The percentage of hair that is cut for each individual cutting operation with one hand while keeping the state of the finger when the eyelid is opened and closed by moving or pressing the thumb in the longitudinal direction of the blade Can be changed.

  A barber familiar with the use of this heel can change the amount of hair to be cut as desired by moving the blade relative to the delicate movement of the thumb. However, it is quite difficult for a barber who is not so skilled to set the relative position of the blade body only by moving the thumb. If a friction surface that resists the movement of the blade body along the long hole is provided so that a slight force is required for the movement of the blade body along the long hole, the mutual position adjustment of the two blade bodies is slightly facilitated.

  Furthermore, if the fulcrum pin 12 is stabilized at a plurality of positions along the long hole 11 by the corrugated side 33 provided with the continuous concave arc 34 of the resin plate 32 attached to the pivotal support portion, the both blades 1a and 1b are provided. The relative position can be easily adjusted even for an unskilled person. In this case, by applying a force in the blade body longitudinal direction to the thumb passed through the thumb insertion hole 13, the wave height of the side is set so that the fulcrum pin 12 can move to the adjacent concave arc 34. Due to the elastic deformation of the resin plate 32 and a small coefficient of friction against the metal, the fulcrum pin 12 can be moved smoothly between adjacent concave arcs.

  It is generally easier to adjust the mutual positional relationship between the blades 1a and 1b with the strength of the force applied to the thumb than to adjust the position of the thumb relative to the other fingers. In a state where a finger is put on the operation end to operate the scissors, applying a force toward the tip of the blade to the thumb is easier and more powerful than applying the force to the opposite side. In the structure in which the spring 43 that biases the blade body 1a on the side where the thumb insertion hole 13 is provided to the operation end side with respect to the other blade body 1b is provided, the thumb is pushed toward the tip side of the blade while holding the hook. By adjusting the force, the amount of movement of one blade body 1a relative to the other blade body 1b can be adjusted. This is because the relative movement of the blades 1a and 1b and the force applied to the spring 43 are proportional to the spring characteristics.

The top view which shows the structure common to the bag of an Example Enlarged view of the vicinity of the pivotal part of the blade with a long hole 1st figure which shows the relationship between the convex teeth which oppose 2nd figure which shows the relationship between the convex teeth which oppose The disassembled perspective view of the pivot attachment part in the collar of 1st Example The disassembled perspective view of the pivot attachment part in the collar of 2nd Example The disassembled perspective view of the pivot attachment part in the collar of 3rd Example The enlarged plan view of the principal part of the pivot attachment part in the collar of 3rd Example The disassembled perspective view of the pivot attachment part in the collar of 4th Example

  The present invention will be described below with reference to the drawings showing several embodiments. 1 to 4 are diagrams showing a configuration common to the following embodiments. The scissors include two blade bodies 1a and 1b that are opened and closed, and both blade bodies are connected to each other by a fulcrum pin 12 so as to be swingable around the fulcrum pin and overlapped. The fulcrum pin 12 passes through the long hole 11 provided in the blade body 1a in the longitudinal direction of the blade body and the round hole 25 provided in the blade body 1b. Most barbs for barbers are provided with a thumb insertion hole 13 for passing a thumb through the operation end of one blade body 1a, and a stopper 14 for defining the closed position of the operation end, and the operation of the other blade body 1b. One finger hole 15 and an arcuate finger hook 16 are provided at the end. Usually, the ring finger or the middle finger is passed through the finger hole 15, the little finger or the ring finger is applied to the finger hook 16, and the index finger is opened and closed in a state of being along the blade body side on the fulcrum pin 12 side from the finger hole 15.

  Opposite sides of the two blade bodies 1 a and 1 b are formed in a concavo-convex shape, and a cutting edge 23 is formed at the tip of the tooth (convex tooth) 21. Therefore, only the hair at the portion where the convex teeth 21 of the two blades mesh with each other is cut, and the hair located at the concave portion 22 between the teeth is not cut. When one blade body 1a is moved relative to the other blade body 1b along the long hole 11, the meshing length between the cutting blades 23 provided on the tops of the convex teeth changes, and the hair to be cut. The ratio of changes.

  That is, in the form of FIG. 3 in which the upper sides 23 of the convex teeth 21 of both blades coincide, the ratio of the hair to be cut is the largest, and the ratio is the tooth width w of the convex teeth / one pitch p of the unevenness. . On the other hand, at the position of FIG. 4 where the convex teeth face the concave portion 22 on the counterpart side, the ratio of the hair to be cut is 0 when w / p = 1/2. Accordingly, the relative movement amount of the blade necessary for adjusting the amount of hair to be cut may be equal to or less than the width w of the convex teeth, and the length L of the long hole 11 is set to the width w of the convex teeth. The length may be equal to or shorter than the length including the diameter d.

  The number of the convex teeth 21 is less than the sukiyaki generally used conventionally. For general wrinkles with a blade width of about 6 cm, the number of convex teeth is appropriate to be about 4 teeth. However, several types of wrinkles with different numbers of convex teeth can be used depending on the thickness and strength of the hair. It is more preferable to prepare. For example, when the number of convex teeth is 3 to 6, the tooth width w is about 5 to 15 mm.

  As shown in FIG. 1, the long hole 11 is preferably provided in a pivotal portion of the blade body 1 a on the side where the thumb insertion hole 13 is provided. Thereby, the amount of movement of the thumb is directly reflected in the amount of movement of the blade body 1a, and it is possible to avoid a slight shift in the amount of movement caused by the opening / closing operation of the blade body.

  FIG. 5 is an exploded perspective view showing the structure of the pivoting portion between the blades 1a and 1b in the first embodiment having the simplest structure. As shown in the drawing, the two blade bodies 1 a and 1 b are pivotally attached to a fulcrum pin 12 that penetrates the long hole 11 and the round hole 25. The long hole 11 is provided in the blade body 1a on the side where the thumb insertion hole 13 is provided, and the thumb inserted through the thumb insertion hole 13 is substantially orthogonal to the direction of the opening / closing operation of the heel while performing the opening / closing operation of the heel. The blade body 1a moves in the longitudinal direction of the long hole 11 with respect to the blade body 1b by slightly moving in the direction, and the meshing length between the top sides 23 of the convex teeth is changed. The percentage of hair that is changed.

  FIG. 6 is an exploded perspective view of the pivot portion of the rod provided with a friction plate 24 that provides resistance to the relative movement between the blades 1a and 1b on the rod of FIG. The fulcrum pin 12 passes through a round hole 25 provided in the blade body 1b and a long hole 11 provided in the blade body 1a. The fulcrum pin 12 includes a head 26 at the end on the blade body 1b side, and a male screw at the end on the blade body 1a side where the thumb insertion hole 13 is provided. A flat friction plate 24 is inserted into the fulcrum pin 12 and fastened with a nut 27 screwed into the male screw. The surface of the friction plate 24 facing the blade body 1a is a friction surface. The friction plate 24 is made of a synthetic resin or a low friction material.

  A spring washer 28 made of a conical plate material is interposed between the head 26 of the fulcrum pin and the blade 1b on that side. The spring washer 28 presses the friction surface of the friction plate 24 against the surface of the blade body 1b.

  The friction surface of the friction plate 24 is a surface having a small friction coefficient. Thereby, fatigue of the thumb by repeatedly moving the blade body can be avoided. The thumb that has passed through the thumb insertion hole 13 of the blade body 1a can easily generate a force that pushes the blade body 1a toward the distal end side. Therefore, it is preferable that the frictional resistance applied to the frictional surface is a frictional surface that has a large frictional resistance when the blade body 1a moves to the tip side and a small frictional resistance when it moves to the opposite side. Such a friction surface can be realized by using an elastic material and making the step surface of the friction surface in the longitudinal direction of the blade into a fine sawtooth step surface.

  FIG. 7 is an exploded perspective view of the pivot portion of the third embodiment of the present invention. In the scissors of the third embodiment, a shallow groove 31 is provided along the longitudinal direction of the long hole 11 on the surface of the blade body 1 a that is overlapped with the opposite blade body 1 b, and a synthetic resin plate 32 is provided in the groove 31. However, the corrugated side 33 is fitted so that it slightly protrudes from the side of the long hole 11.

  As shown in FIG. 8, the corrugated side 33 of the resin plate 32 includes a continuous concave arc 34. The curvature of the concave arc 34 is matched to the curvature of the peripheral surface of the fulcrum pin 12, and the interval (pitch) q between adjacent concave arcs is determined by how many steps the amount of movement between the blade bodies can be set. . In a portion where the fulcrum pin 12 passes through the long hole 11, one peripheral surface of the pin 12 is in contact with the corrugated side 33 of the resin plate, and the opposite side is in contact with the side 35 of the long hole.

  When a force in a direction along the long hole 11 is applied to the blade body 1b in this state, when the force exceeds a predetermined force, the fulcrum pin 12 gets over one of the waves and moves to the adjacent concave arc. . Since this movement is transmitted as a sensation to the thumb of the operator, the operator can sense the amount of movement of the blade body 1a relative to the other blade body 1b by counting the number of touches. Therefore, according to the structure of this embodiment, even an unskilled operator can set the movement amount between the blade bodies relatively easily, that is, the ratio of the hair to be cut when the cutting operation is performed.

  FIG. 9 is an exploded perspective view of the pivot portion in the fourth embodiment of the present invention. In the fourth embodiment, the spring accommodating portion 41 and the base end engaging portion 42 are formed as concave portions on the overlapping surface of the blade body 1a provided with the elongated hole 11 with the counterpart blade body 1b. . A wire spring 43 bent in a U-shape is inserted into the spring accommodating portion 41 with its proximal end fitted into the engaging portion 42. The tip of the spring 43 is in contact with the peripheral surface of the fulcrum pin 12 inserted through the long hole 11, and the spring 43 does not have a wide U-shape and biases the blade body 1 a in the direction. In a state where no force is applied to the thumb with the heel, the blade body 1a is in a position moved most to the operation end side with respect to the other blade body 1b, and a force to push the blade body 1a toward the blade edge side is applied to the thumb. As a result, the blade body 1a moves toward the blade edge with respect to the counterpart blade body 1b with a stroke proportional to the strength of the force.

  That is, according to the structure of the fourth embodiment, the relative amount of movement of the blade, and thus the percentage of hair cut when performing a cutting operation, is determined by the strength of the force applied to the thumb of the hand holding the heel. Can be adjusted.

1a, 1b Blade
11 Slotted hole
12 fulcrum pin
13 Thumb insertion hole
21 Convex teeth
23 Cutting blade
24 friction plate
31 groove
32 Synthetic resin board
33 Waveform edge
43 Spring

Claims (6)

  Both of the blade bodies that perform the cutting action by the opening and closing operation are concave and convex blade bodies provided with blades at the tips of the convex teeth, and the insertion holes of the fulcrum pins that connect the both blade bodies are made into long holes. In a barber jar that allows one side of the body to move in the longitudinal direction with respect to the other, the direction of the opening and closing operation of the thumb blade inserted through the thumb insertion hole provided at the operation end of one blade is substantially orthogonal A barber for barber characterized in that one blade body is movable relative to the other blade body in the longitudinal direction by pushing or moving the blade body in the longitudinal direction.   The barb for scissors according to claim 1, wherein the long hole is formed on a blade body side provided with a thumb insertion hole at an operation end.   The end portion of the fulcrum pin on the side provided with the long hole is provided with a friction surface that is slidably in contact with the blade body surface provided with the long hole perpendicular to the axis of the fulcrum pin. A barber for barber described in 1 or 2.   Between the end portion on the blade body side where the long hole of the fulcrum pin is not provided and the blade body on the side, a compression member for elastically pressing the friction surface on the surface of the blade body provided with the long hole is interposed. A barber for barber according to claim 3.   A groove along the side surface of the long hole is formed on the mating surface of the blade body provided with the long hole with the other blade body, and a synthetic resin plate with a side facing the fulcrum pin as a corrugated side is fitted into this groove. 3. A barber for barber according to claim 1 or 2, wherein   The barber for scissors according to claim 1, further comprising a spring for urging a blade body provided with a thumb insertion hole at an operation end toward the operation end side with respect to the other blade body.

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