JP2019209033A - Body hair cutting device - Google Patents

Abstract

To provide a body hair cutting device that can cut body hair shorter while suppressing a stimulus to skin.SOLUTION: An electric razor 1 comprises a stationary blade 50 and a movable blade 60 that slides with respect to the stationary blade 50 while linearly moving reciprocatingly along a longitudinal direction (an X-axis direction ) of the stationary blade 50. On a surface (a contacting surface 51a) at the opposite side of the movable blade 60 in the stationary blade 50, a recessed part 511a is formed, and the recessed part 511a is arranged so that at least a portion thereof overlaps with a cutting region R1 of the movable blade 60.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a hair cutting device having a fixed blade and a movable blade.

  Conventionally, a hair cutting device such as an electric razor includes a fixed blade and a movable blade that slides relative to the fixed blade while reciprocating linearly moving (see, for example, Patent Document 1).

JP 2013-126438 A

  By the way, in order to cut | disconnect hair shortly, a user may make hair approach a movable blade by pressing a fixed blade against skin. In this case, not only the hair but also the skin approaches the movable blade. For this reason, there exists a possibility that the movable blade may touch skin and irritation | stimulation with respect to skin may increase.

  Then, an object of this invention is to provide the hair cutting device which can cut | disconnect hair shorter, suppressing the irritation | stimulation with respect to skin.

  In order to achieve the above object, a hair cutting apparatus according to an aspect of the present invention includes a fixed blade and a movable blade that slides against the fixed blade while reciprocating linearly along the longitudinal direction of the fixed blade. The concave part is formed in the surface on the opposite side to the movable blade in a fixed blade, and the concave part is arrange | positioned so that at least one part may overlap with the cutting area | region of a movable blade.

  According to the hair cutting device according to the present invention, it is possible to suppress irritation to the skin and cut hairs shorter.

It is a perspective view which shows schematic structure of the electric razor which concerns on embodiment. It is a top view which expands and shows the head part which concerns on embodiment. It is a disassembled perspective view which decomposes | disassembles and shows the head part which concerns on embodiment. It is sectional drawing which shows the head part which concerns on embodiment. It is sectional drawing which shows the state which contacted the fixed blade which concerns on embodiment to skin. It is sectional drawing which expands and shows the fixed blade etc. which concern on the modification 1. As shown in FIG. It is sectional drawing which expands and shows the fixed blade etc. which concern on the modification 2. As shown in FIG. It is sectional drawing which expands and shows the fixed blade etc. which concern on the modification 3.

  Below, the hair cutting device concerning an embodiment of the invention is explained in detail using a drawing. Note that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangements, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a mimetic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected about the same structural member.

[Electric razor]
First, the electric razor according to the embodiment will be described. FIG. 1 is a perspective view showing a schematic configuration of an electric razor 1 according to the embodiment. The electric razor 1 is an example of a hair cutting device. The electric razor 1 includes a main body portion 10 held by a user and a head portion 20 protruding from the main body portion 10.

  The main body 10 is a substantially rod-shaped part, and an electric motor (drive source: not shown) for driving the movable blade 60 provided in the head unit 20 and a power supply unit (power source for supplying power to the drive source) (Not shown). Further, the main body portion 10 is provided with a conversion mechanism (not shown) that converts the rotation of the electric motor into a reciprocating linear motion and transmits it to the head portion 20.

  FIG. 2 is an enlarged plan view showing the head unit 20 according to the embodiment. FIG. 3 is an exploded perspective view showing the head unit 20 according to the embodiment in an exploded manner. FIG. 4 is a cross-sectional view showing the head unit 20 according to the embodiment. Specifically, FIG. 4 is a cross-sectional view of the cutting line including the IV-IV line in FIG. In FIG. 4, illustration of the head case 40 is omitted.

  As shown in FIGS. 2 to 4, the head part 20 is a part for cutting body hair, and includes a base 30, a head case 40, a fixed blade 50, a movable blade 60, and a connecting part 70. I have.

  The base 30 is formed thinner than the main body 10 and protrudes from the tip of the main body 10. Specifically, the base 30 protrudes from the distal end portion of the main body portion 10 so as to be elongated along the moving direction of the reciprocating linear motion of the movable blade 60. That is, the longitudinal direction of the base 30 and the moving direction are parallel. Henceforth, let the longitudinal direction and moving direction of the base 30 be an X-axis direction, let the transversal direction of the base 30 be a Y-axis direction, and let the direction orthogonal to an XY plane be a Z-axis direction. In the present embodiment, the case where the X-axis direction is inclined with respect to the axial direction of the main body portion 10 is illustrated, but the X-axis direction may be parallel to the axial direction of the main body portion 10.

  The width of the base 30 in the Y-axis direction is uniform as a whole. A conversion mechanism or the like is accommodated inside the base 30. A head case 40 is attached to the surface of the base 30, and the back surface of the base 30 is a curved surface that protrudes outward.

  The head case 40 is a part that houses the fixed blade 50, the movable blade 60, the connecting portion 70, and the like. The head case 40 is a long case along the moving direction, and an end on the base 30 side and an end on the opposite side of the base 30 are open.

  The fixed blade 50 is a fixed blade that is long in the X-axis direction and is fixed to the head case 40 so as to protrude from the main body 10. Specifically, the fixed blade 50 is fixed to the head case 40 so as to cover the end of the head case 40 opposite to the base 30.

  The fixed blade 50 is made of, for example, metal, and integrally includes a contact portion 51 and a support portion 52.

  The contact portion 51 is a flat plate-like portion that contacts the skin S. The contact portion 51 is provided with a contact surface 51a with which the skin S abuts and a sliding surface 51b on the opposite side of the contact surface 51a on which the movable blade 60 slides ( (See FIG. 4). That is, the contact surface 51 a is a surface opposite to the movable blade 60.

  The contact portion 51 has a rectangular shape whose basic outer shape is long in the X-axis direction when viewed in the Z-axis direction, and is partially cut out. The contact portion 51 is formed with a plurality of first slits 511 extending along the Y-axis direction (short direction) and arranged along the X-axis direction (longitudinal direction). The first slit 511 is open at both ends in the Y-axis direction. For this reason, the hair H (see FIG. 4) can enter the first slit 511 from both sides in the Y-axis direction.

  In the contact portion 51, a portion between the plurality of first slits 511 is a first unit blade 512. That is, the fixed blade 50 has a plurality of first unit blades 512. Edges (blades) are formed on a pair of edges facing each other in the X-axis direction on the sliding surface 51 b of each first unit blade 512.

  A pair of recesses 511a is formed on the contact surface 51a of each first unit blade 512. The pair of recesses 511a are arranged at a predetermined interval in the Y-axis direction. Each recessed part 511a is continuously open to the first unit blade 512 in the X-axis direction. In other words, both end portions in the X-axis direction of each recess 511 a communicate with the first slit 511. Each recess 511a is formed in a rectangular shape that is long in the Y-axis direction when viewed in the movement direction of the reciprocating linear motion (viewed in the X-axis direction).

  The support portion 52 is a portion that protrudes from the contact portion 51 and is supported by the head case 40. The support part 52 includes a pair of base parts 521 and a plurality of column parts 522 provided in each base part 521.

  The pair of base portions 521 are provided for each of the pair of long sides in the contact portion 51. Each of the pair of base portions 521 protrudes toward the head case 40 from both end portions of the contact portion 51 in the Y-axis direction. Each of the pair of base portions 521 is continuously provided on the entire long side of the contact portion 51. The pair of base portions 521 are opposed to each other, and are inclined with respect to the contact portion 51 so that the interval is narrowed toward the distal end portion. Each of the pair of base portions 521 is provided with the first slits 511 continuously (see FIG. 4). Thus, if the first slit 511 is continuously provided in each of the pair of base portions 521, even the hair H that is longer than the thickness of the contact portion 51 is introduced into the first slit 511. Is possible. Here, the thickness direction of the contact portion 51 is the Z-axis direction.

  The same number of the plurality of column portions 522 is provided for each base portion 521. The plurality of column portions 522 extend from each base portion 521 in the Z-axis direction. The plurality of column portions 522 are arranged along the X-axis direction. The plurality of column portions 522 are fixed to the head case 40 while being accommodated in the head case 40. Thereby, the fixed blade 50 is fixed to the head case 40.

  The movable blade 60 is a movable blade that slides with respect to the fixed blade 50 while reciprocating linearly moving along the X-axis direction. Specifically, the movable blade 60 is disposed so as to overlap the contact portion 51 between the pair of base portions 521. That is, the movable blade 60 overlaps the contact portion 51 of the fixed blade 50 on the head case 40 side. The movable blade 60 is provided with a sliding surface 60a that slides with respect to the fixed blade 50, and a connecting surface 60b that is a surface opposite to the sliding surface 60a and to which the connecting portion 70 is connected. (See FIG. 4).

  The movable blade 60 has a rectangular shape whose basic outer shape is long in the X-axis direction when viewed in the Z-axis direction, and is partially cut out. A plurality of second slits 61 extending along the Y-axis direction and arranged along the X-axis direction are formed in each of the pair of long sides of the movable blade 60. Each second slit 61 is open at one end and closed at the other end. A portion between the plurality of second slits 61 in the X-axis direction is a second unit blade 62. That is, a plurality of second unit blades 62 are provided on each of the pair of long sides of the movable blade 60. It can be said that the plurality of second unit blades 62 extend from the intermediate portion 63 of the movable blade 60 in the Y-axis direction. The intermediate portion 63 is provided at the center of the movable blade 60 in the Y-axis direction and is a portion that is long in the X-axis direction.

  Edges (blades) are formed on a pair of edges facing each other in the X-axis direction on the sliding surface 60 a of each second unit blade 62. For this reason, the sliding surface 60a in each second unit blade 62 is a cutting region R1 that contributes to cutting the hair H (see FIG. 4). The cutting region R1 is adjacent to the second slit 61 in the X-axis direction.

  On the other hand, the sliding surface 60a in the intermediate part 63 does not have an edge. That is, the sliding surface 60a in the intermediate portion 63 is a non-cutting region R2 that does not contribute to the cutting of the hair H. In the Y-axis direction, the cut region R1, the non-cut region R2, and the cut region R1 are arranged in this order.

  Here, in the Y-axis direction, the pair of concave portions 511 a of the fixed blade 50 are arranged so as to entirely overlap the cutting region R <b> 1 of the movable blade 60. Specifically, the pair of recesses 511a of the fixed blade 50 are arranged so as to coincide with the cutting region R1 of the movable blade 60, respectively. One end of the recess 511a in the Y axis direction coincides with one end of the cutting region R1 in the Y axis direction, and the other end of the recess 511a in the Y axis direction coincides with the other end of the cutting region R1 in the Y axis direction. Thereby, the recessed part 511a does not overlap with the non-cutting region R2. In other words, in the contact portion 51 of the fixed blade 50, the portion facing the cutting region R1 of the movable blade 60 is thin, and the portion facing the non-cutting region R2 is thick.

  As shown in FIG. 2, the connecting portion 70 is a member that forms a part of the conversion mechanism, and is a member that is connected to the movable blade 60 and transmits power from the drive source to the movable blade 60. Specifically, the connecting portion 70 is integrally provided with a pedestal 71 and a link portion 72.

  The pedestal 71 is formed long in the X-axis direction, and the movable blade 60 is attached to the bottom surface thereof. A plurality of protrusions 73 are provided on the bottom surface of the pedestal 71, and each protrusion 73 is disposed in each second slit 61. Each protrusion 73 suppresses the skin S from excessively entering the second slit 61 through the first slit 511 when the contact portion 51 of the fixed blade 50 is pressed against the skin. Although this protrusion 73 can be omitted, by providing it, the stimulation to the skin S by the movable blade 60 can be prevented or reduced. An elastic member (not shown) is attached to the pedestal 71, and the pedestal 71 presses the movable blade 60 against the fixed blade 50 by the urging force of the elastic member. In this state, the pedestal 71 of the connecting portion 70 is erected via the movable blade 60 with respect to a portion (contact portion 51) where the plurality of first slits 511 are formed in the fixed blade 50.

  A pair of link portions 72 are provided and protrude from a surface of the base 71 opposite to the bottom surface. Each link part 72 is connected with the other site | part of the conversion mechanism. When the motive power from the drive source is transmitted to the link part 72 via another part of the conversion mechanism, the link part 72 and the base 71 swing in the X-axis direction. Here, since the pedestal 71 presses the movable blade 60 against the fixed blade 50 by the biasing force of the elastic member, the movable blade 60 moves in the X-axis direction in conjunction with the swinging of the link portion 72 and the pedestal 71. Will reciprocate linearly.

  During the reciprocating linear movement of the movable blade 60, the edges of the sliding surface 51b of the first unit blade 512 and the sliding surface 60a of the second unit blade 62 are repeatedly reversed in the X-axis direction. When the hair H enters between the edges of the sliding surface 51b of the first unit blade 512 and the sliding surface 60a of the second unit blade 62, the hair H is cut by this insertion operation.

  FIG. 5 is a cross-sectional view showing a state where the fixed blade 50 according to the embodiment is in contact with the skin S. FIG. As shown in FIG. 5, when the contact portion 51 of the fixed blade 50 is pressed against the skin S, a part of the skin S rises by its own elasticity in the recess 511a of the fixed blade 50, and is introduced into the recess 511a. The Since the recess 511 a communicates with the first slit 511, the shape of the skin S is maintained also in the first slit 511 of the fixed blade 50. Thereby, since the root of the hair H approaches the movable blade 60, the hair H is cut short.

  Moreover, since the recessed part 511a is provided only in a part of the contact part 51, the other part of the contact part 51 is thicker than the recessed part 511a. The thick portion suppresses the skin S from rising excessively in the first slit 511. That is, the skin S is less likely to approach the movable blade 60 in the first slit 511 than when the entire contact portion 51 is flat with a thickness corresponding to the thickness of the recess 511a. Therefore, irritation | stimulation with respect to the skin S can be suppressed.

  In particular, in the present embodiment, the recess 511a does not overlap the non-cutting region R2 of the movable blade 60. That is, the skin S is less likely to approach the non-cutting region R2 of the movable blade 60. For this reason, it is difficult for the non-cutting region R2 of the movable blade 60 to stimulate the skin S.

[Effects, etc.]
As described above, the electric razor 1 according to the present embodiment slides with respect to the fixed blade 50 while reciprocating linearly moving along the fixed blade 50 and the longitudinal direction (X-axis direction) of the fixed blade 50. A concave portion 511a is formed on the surface of the fixed blade 50 opposite to the movable blade 60 (contact surface 51a), and at least a portion of the concave portion 511a is cut by the movable blade 60. It arrange | positions so that it may overlap with area | region R1.

  According to this, since at least a part of the recess 511a overlaps the cutting region R1 of the movable blade 60, a part of the skin S can be introduced into the recess 511a of the fixed blade 50. Thereby, since the root of the hair H approaches the movable blade 60, the hair H is cut short.

  For example, in the initial stage of shaving, the user shave the hair H without pressing the fixed blade 50 against the skin S, and then touches the part to check the length of the hair H. If it is determined that the hair H is not shortened as expected by this confirmation, the user presses the fixed blade 50 against the skin S with a greater force and shave the hair H again. At this time, the skin S rises greatly in the first slit 511, so that the possibility of approaching the movable blade 60 increases. However, if the concave portion 511a is provided in the fixed blade 50 as described above, since the hair H is cut short from the initial stage of shaving, the user itself presses the fixed blade 50 against the skin S with a large force. Is reduced. That is, irritation | stimulation with respect to the skin S can be suppressed.

  Furthermore, since the skin S is prevented from rising excessively in the portion where the concave portion 511a is not provided in the contact surface 51a, the skin S is unlikely to approach the movable blade 60. Therefore, irritation | stimulation with respect to the skin S can be suppressed irrespective of the initial stage of shaving, and the stage after it.

  From the above, the electric razor 1 according to the present embodiment can suppress irritation to the skin S and can cut the hair H shorter.

  Further, the recess 511a is disposed so as not to overlap the non-cutting region R2 of the movable blade 60.

  According to this, the recessed part 511a does not overlap with the non-cutting region R2 of the movable blade 60. That is, since the skin S is unlikely to approach the non-cutting region R2 of the movable blade 60, the non-cutting region R2 of the movable blade 60 is less likely to irritate the skin S. Therefore, irritation | stimulation with respect to the skin S can be suppressed more.

  Further, the recess 511a is arranged so as to entirely overlap the cutting region R1 of the movable blade 60.

  According to this, since the entire recess 511a overlaps the cutting region R1 of the movable blade 60, the skin S introduced into the recess 511a is brought as close as possible to the entire cutting region R1 of the movable blade 60. be able to. Therefore, the hair H can be cut short in a wider range.

  Further, the recess 511a is arranged so as to coincide with the cutting region R1 of the movable blade 60.

  According to this, since the recessed part 511a is arrange | positioned so that it may correspond with respect to cutting area | region R1 of the movable blade 60, the skin S can be made hard to approach to areas other than cutting area R1 in the movable blade 60. Therefore, irritation | stimulation with respect to the skin S can be suppressed more.

  Further, the recess 511a is provided in a quadrangular shape when viewed in the moving direction (viewed in the X axis direction) in the reciprocating linear motion.

  According to this, since the concave portion 511a is rectangular when viewed in the X-axis direction, it is difficult to inhibit the skin S from rising in the concave portion 511a. Thus, the skin S can be easily brought close to the cutting region R1 of the movable blade 60 with a simple structure. Therefore, the hair H can be more reliably cut short.

  The fixed blade 50 is long along the moving direction (X-axis direction) in the reciprocating linear motion, and extends along the short direction (Y-axis direction) of the fixed blade 50 and is also fixed. The movable blade 60 has a plurality of first slits 511 arranged along the longitudinal direction (X-axis direction) of 50, and the movable blade 60 is long along the moving direction. It has a plurality of second slits 61 that extend along the Y-axis direction) and are arranged along the longitudinal direction (X-axis direction) of the movable blade 60 and are adjacent to the cutting region R1.

  Thus, even the electric razor 1 including the fixed blade 50 having the plurality of first slits 511 and the movable blade 60 having the plurality of second slits 61 can suppress irritation to the skin S, The hair H can be cut shorter.

[Modification 1]
In the said embodiment, the fixed blade 50 which has the rectangular recessed part 511a was illustrated. In the first modification, a fixed blade 50C having a trapezoidal recess 511c is illustrated.

  FIG. 6 is an enlarged cross-sectional view of the fixed blade 50C according to the first modification. In the following description, the same parts as those in the above embodiment may be denoted by the same reference numerals and description thereof may be omitted.

  As shown in FIG. 6, the fixed blade 50C according to Modification 1 has a trapezoidal recess 511c when viewed in the X-axis direction. Specifically, the recess 511c is formed with respect to the contact surface 51c. The recess 511c has a trapezoidal shape when viewed in the X-axis direction, and the upper base is disposed on the movable blade 60 side, and the lower bottom is disposed on the opposite side of the movable blade 60. Thus, the recessed part 511c has a trapezoidal shape with a narrow width on the movable blade 60 side. That is, since the concave portion 511c is narrow on the movable blade 60 side and wide on the opposite side, the skin S can be raised smoothly in the concave portion 511c. For this reason, the skin S can be brought close to the cutting region R1 of the movable blade 60 in a wide range while suppressing the stimulation to the skin S introduced into the recess 511c.

  In particular, in Modification 1, one end in the Y-axis direction at the upper base of the recess 511c coincides with one end in the Y-axis direction of the cutting region R1, and the other end in the Y-axis direction at the upper bottom of the recess 511c is the cutting region R1. Coincides with the other end in the Y-axis direction. For this reason, the skin S introduced into the recess 511c can be brought closer to the entire cutting region R1 of the movable blade 60 as much as possible. Therefore, the hair H can be cut short in a wider range.

  The recess may be a rectangle other than a rectangle or a trapezoid. Other quadrangles include parallelograms and squares.

[Modification 2]
In the said embodiment, the case where the rectangular recessed part 511a was arrange | positioned so that it might correspond with respect to cutting area | region R1 of the movable blade 60 was illustrated. In the second modification, the case where the concave portion 511d does not coincide with the cutting region R1 is illustrated.

  FIG. 7 is an enlarged cross-sectional view of the fixed blade 50D according to the second modification. In the following description, the same parts as those in the above embodiment may be denoted by the same reference numerals and the description thereof may be omitted.

  As shown in FIG. 7, the fixed blade 50D according to the modified example 2 has a rectangular recess 511d when viewed in the X-axis direction. Specifically, the recess 511d is disposed so as to be displaced outward in the Y-axis direction with respect to the cutting region R1 of the movable blade 60. Even in this case, stimulation to the skin S can be suppressed, and the hair H can be cut shorter.

  The recess 511d may be disposed so as to be displaced inward in the Y-axis direction with respect to the cutting region R1. Moreover, the recessed part 511d may be arrange | positioned so that it may be settled in the cutting | disconnection area | region R1 as a whole, and may be arrange | positioned so that it may protrude from the cutting | disconnection area | region R1 as a whole.

[Modification 3]
In the said embodiment, the fixed blade 50 which has the rectangular recessed part 511a was illustrated. In the first modification, a fixed blade 50E having a triangular recess 511e is illustrated.

  FIG. 8 is an enlarged cross-sectional view of the fixed blade 50E according to the third modification. In the following description, the same parts as those in the above embodiment may be denoted by the same reference numerals and the description thereof may be omitted.

  As shown in FIG. 8, the fixed blade 50E according to Modification 3 has a triangular recess 511e as viewed in the X-axis direction. Specifically, the concave portion 511e has a right triangle shape as viewed in the X-axis direction, and is arranged so that the hypotenuse becomes lower as it goes outward. Even with such a recess 511e, stimulation to the skin S can be suppressed, and the hair H can be cut shorter.

  The recess may be a triangle other than a right triangle. Further, the recess may have a shape other than a triangle or a rectangle. Examples of other shapes include a pentagonal or more polygonal shape, a semicircular shape, and a semielliptical shape. However, in any shape, if the concave portion is narrow on the movable blade 60 side and wide on the opposite side, the same effect as that of the first modification can be obtained.

[Others]
As mentioned above, although the hair cutting device concerning the present invention was explained based on the above-mentioned embodiment, the present invention is not limited to the above-mentioned embodiment.

  For example, in the above embodiment, the case where a pair of recesses 511a is provided for one first unit blade 512 is illustrated. However, the number of recessed portions in one first unit blade 512 may be one or three or more.

  Moreover, in the said embodiment, the case where all the several 1st unit blades 512 in the fixed blade 50 have the same number of the recessed parts 511a of the same shape in the same position was illustrated. However, the plurality of first unit blades in the fixed blade may include a first unit blade having a concave portion different from other first unit blades. Different recesses are recesses that differ in at least one of shape, number of installations, and installation locations.

  Moreover, in the said embodiment, the case where the recessed part 511a was following the 1st unit blade 512 entirely in the X-axis direction was illustrated. However, a recess may be provided in a part of the first unit blade 512 in the X-axis direction. In this case, in order to continue the shape of the skin S from the concave portion to the first slit 511, it is desirable that one end portion of the concave portion in the X-axis direction communicates with the first slit 511.

  Moreover, in the said embodiment, although the electric razor 1 was illustrated as a hair cutting device, what kind of thing may be used as a hair cutting device if it is a device which cuts hair. Other examples of the hair cutting device include clippers and trimers.

  Moreover, in the said embodiment, the rotary electric motor was illustrated as a drive source. However, it is also possible to use a linear actuator as a drive source. In this case, the conversion mechanism becomes unnecessary, and the drive shaft of the linear actuator may be connected to the link portion 72 of the connecting portion 70.

  Moreover, in the said embodiment, the pair of base parts 521 of the fixed blade 50 were provided in the both sides of the Y-axis direction of the movable blade 60, and the case where it obstruct | occluded partially was illustrated. However, both sides in the Y-axis direction of the movable blade 60 may be opened as a whole.

  In addition, other forms obtained by subjecting each embodiment to various modifications conceived by those skilled in the art, and any combination of components and functions in each embodiment without departing from the spirit of the present invention. Forms to be made are also included in the invention.

  The present invention is applicable to a hair cutting device having a fixed blade and a movable blade.

1 Electric razor (hair cutting device)
DESCRIPTION OF SYMBOLS 10 Main-body part 20 Head part 30 Base 40 Head case 50, 50C, 50D, 50E Fixed blade 51 Contact part 51a, 51c Contact surface 51b, 60a Sliding surface 52 Support part 60 Movable blade 60b Connection surface 61 2nd slit 62 Second unit blade 63 Intermediate portion 70 Connection portion 71 Base 72 Link portion 73 Projection 511 First slit 511a, 511c, 511d, 511e Recess 512 First unit blade 521 Base portion 522 Column portion H Hair R1 Cutting region R2 Non-cutting region S skin

Claims (6)

A fixed blade;
A movable blade that slides against the fixed blade while reciprocating linearly moving along the longitudinal direction of the fixed blade,
A concave portion is formed on the surface of the fixed blade opposite to the movable blade,
The said hair part is arrange | positioned so that at least one part may overlap with the cutting area | region of the said movable blade. The hair cutting device according to claim 1, wherein the concave portion is disposed so as not to overlap with a non-cutting region of the movable blade. The body hair cutting device according to claim 1, wherein the concave portion is disposed so as to entirely overlap the cutting region of the movable blade. The hair cutting device according to claim 3, wherein the concave portion is arranged so as to coincide with the cutting region of the movable blade. The hair cutting device according to any one of claims 1 to 4, wherein the concave portion is provided in a quadrangular shape when viewed in a moving direction in the reciprocating linear motion. The fixed blades are long along the moving direction in the reciprocating linear motion, and each of the fixed blades extends along the short direction of the fixed blade and is arranged along the longitudinal direction of the fixed blade. Having a first slit of
The movable blades are long along the moving direction, extend along the short direction of the movable blade, and are arranged along the longitudinal direction of the movable blade, and are adjacent to the cutting region. The hair cutting device according to any one of claims 1 to 5, further comprising a plurality of matching second slits.

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