WO2015083317A2 - Rasoir électrique - Google Patents

Rasoir électrique Download PDF

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Publication number
WO2015083317A2
WO2015083317A2 PCT/JP2014/005431 JP2014005431W WO2015083317A2 WO 2015083317 A2 WO2015083317 A2 WO 2015083317A2 JP 2014005431 W JP2014005431 W JP 2014005431W WO 2015083317 A2 WO2015083317 A2 WO 2015083317A2
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WO
WIPO (PCT)
Prior art keywords
inner blade
blade
introduction
suppression
unit
Prior art date
Application number
PCT/JP2014/005431
Other languages
English (en)
Japanese (ja)
Other versions
WO2015083317A3 (fr
Inventor
新太郎 松尾
憲二 成田
茂 立田
佐近　茂俊
中山　敏
Original Assignee
パナソニックＩｐマネジメント 株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント 株式会社 filed Critical パナソニックＩｐマネジメント 株式会社
Publication of WO2015083317A2 publication Critical patent/WO2015083317A2/fr
Publication of WO2015083317A3 publication Critical patent/WO2015083317A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/044—Manufacture and assembly of cutter blocks

Definitions

  • the present invention relates to an electric razor.
  • Patent Document 1 discloses an example of a conventional electric razor.
  • the electric razor of Patent Document 1 includes an outer blade and an inner blade. According to this electric razor, a ridge is introduced into the outer blade hole formed in the outer blade and the inner blade hole formed in the inner blade. The scissors introduced into the outer blade hole and the inner blade hole are cut by the translational movement of the inner blade with respect to the outer blade.
  • the outer blade When the electric razor is used, the outer blade is pressed against the skin. For this reason, skin may be introduced into the inner blade hole through the outer blade hole. Thus, the skin introduced into the inner blade hole may be stimulated by the translational movement of the inner blade relative to the outer blade. Such a problem may also occur in a rotary electric razor in which the inner blade rotates with respect to the outer blade.
  • An object of the present invention is to provide an electric razor that is less likely to irritate the skin.
  • the electric razor includes an outer blade, an inner blade, and an introduction suppressing unit.
  • the inner blade defines an inner blade hole and an inner blade inner space communicating with the inner blade hole, and is provided to translate or rotate with respect to the outer blade.
  • the introduction suppressing portion is disposed at a position where it can come into contact with the skin in the inner blade internal space, and is exposed to the outside of the inner blade through the inner blade hole.
  • the area of the leading end portion of the introduction suppressing portion in plan view of the inner blade is smaller than the area of the root portion of the introduction suppressing portion in plan view of the inner blade.
  • the shape of the tip portion of the introduction suppressing portion is a hemispherical shape.
  • the introduction restraining portion constitutes a first restraining portion constituting a base portion of the introduction restraining portion and a tip portion of the introduction restraining portion, and is thinner than the first restraining portion.
  • a second suppression portion is provided.
  • the first suppression portion has an inverted U shape
  • the second suppression portion is at least one protrusion provided on a curved portion of the first suppression portion having the inverted U shape.
  • the first restraining portion is a pillar shape
  • the second restraining portion is a protrusion provided at a tip portion of the pillar-shaped first restraining portion.
  • the introduction suppressing portion has a tapered shape that becomes narrower from the root portion to the tip portion of the introduction suppressing portion.
  • a distance between the first suppression portion and the inner blade is shorter than a bristle diameter.
  • the leading end surface of the introduction suppressing portion is present on the inner blade inner space side with respect to the leading end surface of the inner blade.
  • the inner blade includes a plurality of blade pieces, the inner blade hole is formed between two adjacent blade pieces, and the introduction suppressing portion is formed between the two adjacent blade pieces. It is arranged in the inner blade inner space corresponding to the inner blade holes in between.
  • FIG. 4 The disassembled perspective view of the electric shaver of 1st Embodiment.
  • FIG. 4 is a sectional view taken along line D4-D4 of FIG.
  • FIG. 7 is a cross-sectional view taken along line D7-D7 of FIG. Sectional drawing of a part of inner blade unit of 3rd Embodiment. Sectional drawing of a part of inner blade unit of 4th Embodiment.
  • the configuration of the electric razor 1 will be described with reference to FIG.
  • the electric razor 1 is an electric device that cuts hair such as wrinkles.
  • the electric razor 1 includes a body 10, a head 20, and an outer blade unit 30.
  • the driving method of the electric razor 1 is a translational motion method. According to the translational motion system, the inner blade unit 40 of the head 20 translates with respect to the outer blade unit 30.
  • the body 10 has a role of accommodating various components of the electric razor 1 and a role of a grip part that can be gripped by the user.
  • the body 10 is an aggregate of a plurality of components, and includes a drive unit 11 and a power switch 12 as an example.
  • the head 20 has a role of cutting hair.
  • the head 20 is coupled to the body 10.
  • the head 20 is an assembly of a plurality of components, and includes two inner blade units 40 as an example.
  • the drive unit 11 has a role of supplying a driving force to the inner blade unit 40 and causing the inner blade unit 40 to translate with respect to the outer blade unit 30.
  • the drive unit 11 is accommodated across the body 10 and the head 20. A part of the drive unit 11 protrudes from the head 20 to the outside.
  • the drive unit 11 is coupled to the inner blade unit 40.
  • the power switch 12 has a role of switching the operation of the drive unit 11.
  • the power switch 12 is formed on the front portion of the body 10. When the power switch 12 is set to ON, a driving force is supplied from the driving unit 11 to the inner blade unit 40. When the power switch 12 is set to OFF, the driving force is not supplied from the driving unit 11 to the inner blade unit 40.
  • the outer blade unit 30 has a role of introducing hair into the head 20 and cutting the hair in cooperation with the inner blade unit 40.
  • the outer blade unit 30 is an aggregate of a plurality of components, and includes an outer blade case 31 and an outer blade 32 as an example.
  • the outer blade case 31 has an attachment structure that can be attached to and detached from the head 20.
  • the outer cutter case 31 defines an outer cutter inner space 33.
  • the outer blade 32 is made of a metal material.
  • the outer blade 32 is coupled to the outer blade case 31.
  • a large number of outer blade holes 32 ⁇ / b> A are formed in the outer blade 32.
  • the outer blade hole 32 ⁇ / b> A has a role of introducing hair into the outer blade inner space 33.
  • the configuration of the inner blade unit 40 will be described with reference to FIGS.
  • the inner blade unit 40 has a role of cutting hairs in cooperation with the outer blade unit 30.
  • the inner blade unit 40 is an assembly of a plurality of constituent elements, and includes an inner blade 50, a joint component 60, and a plurality of introduction suppressing portions 70 as an example.
  • the joint component 60 is coupled to the drive unit 11 (see FIG. 1). For this reason, the inner blade unit 40 translates with respect to the outer blade unit 30 by the driving force supplied from the drive unit 11.
  • the inner blade 50 is made of a metal material.
  • the inner blade 50 includes a plurality of functional parts.
  • the inner blade 50 includes a support plate 51, a plurality of blade pieces 52, and a plurality of inner blade holes 53. These functional parts constitute a part of the inner blade 50.
  • the inner blade 50 defines an inner blade inner space 54 that communicates with the inner blade hole 53 together with the inner blade hole 53.
  • the shape of the support plate 51 is a rectangular shape that is long in the width direction of the head 20 (hereinafter, “head width direction”).
  • the support plate 51 is coupled to the joint component 60.
  • the plurality of blade pieces 52 are arranged side by side in the head width direction.
  • the shape of each blade piece 52 is an inverted U shape when the head 20 is viewed from the side.
  • An inner blade hole 53 is formed between two blade pieces 52 adjacent to each other in the head width direction.
  • Each introduction suppression unit 70 has a skin introduction suppression function that suppresses skin from entering the inner blade internal space 54.
  • the plurality of introduction suppressing portions 70 are arranged side by side in the head width direction.
  • Each introduction suppressing portion 70 is provided in the inner blade inner space 54 corresponding to each inner blade hole 53 and is disposed at a position where it can come into contact with the skin.
  • Each introduction suppressing portion 70 faces the outside of the inner blade 50 through the corresponding inner blade hole 53.
  • the blade piece 52 can be divided into three parts, that is, a short high-pressure part RA and two short low-pressure parts RB in the short direction of the head 20 (hereinafter, “head short direction”). This section is defined based on the pressure acting on the inner blade 50 when the electric shaver 1 is used.
  • the blade piece 52 is formed in an inverted U shape. That is, the blade piece 52 includes a blade tip portion (RA) that defines the tip portion of the blade piece 52 and two blade arm portions (RB) extending from both ends of the blade tip portion.
  • the short high-pressure portion RA is an intermediate portion of the blade pieces 52 in the head short-side direction, and is a portion where high pressure is more likely to act than the short low-pressure portion RB.
  • the two short low-pressure portions RB are portions on both sides of the short high-pressure portion RA in the head short-side direction, and are portions where a lower pressure is more easily applied than the short high-pressure portion RA. This pressure relationship is mainly caused by the fact that the short high pressure portion RA of the blade piece 52 has an arch shape that easily fits the skin.
  • the introduction suppression unit 70 includes a plurality of functional parts.
  • the introduction suppression unit 70 includes a thick portion 71 as a first suppression portion and a thin portion 72 as a second suppression portion. These functional parts constitute a part of one introduction suppressing unit 70.
  • the introduction suppression unit 70 is formed of a resin material.
  • the thick portion 71 has a thin plate structure.
  • the thick portion 71 is formed in an inverted U shape.
  • the distal end portion of the thick portion 71 is provided as a curved portion, and the shape thereof is, for example, a semicircular shape.
  • the thick portion 71 constitutes the basic portion of the introduction suppressing unit 70.
  • the thick part 71 is connected to the joint part 60.
  • the thick portion 71 exists from one short low-pressure portion RB to the other short low-pressure portion RB in the head short direction.
  • the thin portion 72 has a protruding structure.
  • the shape of the tip of the thin portion 72 is a hemispherical shape. As an example, three thin portions 72 are arranged in the short-side direction of the head.
  • the thin portion 72 constitutes the tip portion of the introduction suppressing unit 70.
  • the thin portion 72 protrudes from the tip portion (curved portion) of the thick portion 71 toward the inner blade hole 53.
  • the distal end surface 72A of the thin portion 72 exists on the inner blade inner space 54 side of the distal end surface 52A of the blade piece 52 in the head height direction. That is, the distal end surface 72A of the thin portion 72 does not protrude from the distal end surface 52A of the blade piece 52.
  • the plurality of thin portions 72 are present in portions corresponding to the short high-pressure portions RA in the head width direction.
  • the skin is likely to enter the inner blade hole 53 from the position of the short high pressure portion RA rather than the position of the short low pressure portion RB.
  • the introduction suppressing unit 70 is configured in consideration of such skin movement. Since the thin portion 72 is present nearer the inlet portion of the inner blade hole 53 than the thick portion 71, the effect of preventing the skin from entering the inner blade inner space 54 is high. For this reason, since the thin part 72 is arrange
  • FIG. 4 is intended to show the constituent members in an easy-to-understand manner, and the constituent members in FIG. 4 are not necessarily in actual dimensional ratios.
  • the width dimension XA of the thin part 72 is shorter than the width dimension XB of the thick part 71.
  • the width dimension XA of the thin portion 72 is a distance from one end surface of the thin portion 72 to the other end surface in the head width direction.
  • the width dimension XB of the thick portion 71 is a distance from one end surface of the thick portion 71 to the other end surface in the head width direction.
  • the area of the distal end surface 72A of the thin portion 72 (that is, the distal end portion of the introduction suppressing portion 70) is smaller than the area of the thick portion 71 (that is, the root portion of the introduction suppressing portion 70).
  • the area of the distal end surface 72A is the area of the distal end surface 72A in the plan view of the inner blade 50.
  • the area of the thick part 71 is the area of the thick part 71 in plan view of the inner blade 50.
  • the height (characteristic value) of the skin introduction suppressing function realized by the introduction suppressing unit 70 mainly depends on the width dimension XA of the tip portion of the thin portion 72.
  • the skin introduction suppressing function increases as the width dimension XA increases.
  • a preferable skin introduction suppression function is ensured.
  • the width dimension XA of the tip portion of the thin portion 72 is set to a size included in the specified width range.
  • the wrinkle introduction property indicates the ease with which the wrinkle is inserted into the inner blade inner space 54.
  • the distance XC between the end face of the thin portion 72 and the outer blade 32 affects the wrinkle introduction property.
  • the soot introduction property increases as the distance XC increases. When the distance XC is included in the specified distance range, a preferable soot introduction property is ensured. For this reason, the distance XC is set to a size included in the specified distance range.
  • the width dimension XA and the distance XC influence each other. For this reason, it is preferable to prescribe
  • the introduction suppression unit 70 has a width dimension XA that ensures a preferable skin introduction suppression function and a distance XC that ensures a preferable wrinkle introduction property.
  • the strength of the thick portion 71 may be relatively small. That is, according to this configuration, the maximum load that the thick portion 71 can receive from the outside is relatively small.
  • the introduction suppression unit 70 further includes a structure for ensuring a preferable strength.
  • the area of the thick portion 71 in the plan view of the inner blade 50 is set larger than the area of the tip surface 72A of the thin portion 72 in the plan view of the inner blade 50.
  • the introduction suppressing unit 70 When a load acts on the thick part 71 in contact with the skin, the introduction suppressing unit 70 is bent and deformed with the root part of the thick part 71 coupled to the joint part 60 as a fulcrum. For this reason, increasing the strength of the root portion of the thick portion 71 makes it difficult for the thick portion 71 to be damaged.
  • the distance XC between the one end face of the thin portion 72 and the outer blade 32 is a length equal to or longer than a specified distance.
  • the prescribed distance is, for example, the diameter of the ridge.
  • the diameter of the heel varies from person to person.
  • the diameter of a typical ridge is determined as a specified distance, and the distance XC is determined based on the relationship between the specified distance and the width dimension XA of the thin portion 72. Since the narrow portion 72 and the outer blade hole 32A of the outer blade 32 have such a dimensional relationship, wrinkles easily enter the inner blade inner space 54.
  • a gap space SA is formed between the thick portion 71 and the blade piece 52.
  • a marginal space SB is formed between the thin portion 72 and the blade piece 52.
  • the width dimension XD of the gap space SA is defined by the distance between the end face of the thick portion 71 and the blade piece 52.
  • the width dimension XD of the clearance space SA is such that a ridge having a diameter smaller than the diameter of a typical ridge is difficult to enter the clearance space SA. That is, the width dimension XD is shorter than the specified distance.
  • the width dimension XE of the margin space SB is defined by the distance between the end face of the thin portion 72 and the blade piece 52.
  • the width dimension XE of the margin space SB is larger than the width dimension XD of the gap space SA.
  • the width dimension XE of the margin space SB is set to a size that prevents clogging between the thinly cut portion 72 and the blade piece 52.
  • the operation of the electric razor 1 will be described with reference to FIG.
  • the outer blade 32 is pressed against the skin 100.
  • the collar 110 is introduced into the outer blade inner space 33 through the outer blade hole 32A.
  • the rod 110 introduced into the outer blade inner space 33 is introduced into the inner blade inner space 54 through the inner blade hole 53.
  • the length of the ridge 110 introduced into the inner blade inner space 54 changes under the influence of the direction of the ridge.
  • the skin 100 is introduced into the outer blade inner space 33 through the outer blade hole 32A.
  • the volume of the skin 100 introduced into the outer blade inner space 33 changes under the influence of a force or the like that presses the outer blade 32 against the skin 100.
  • the force pressing the outer blade 32 against the skin 100 is weak, the skin 100 may not be substantially introduced into the inner blade hole 53.
  • the skin 100 may reach the inner blade hole 53.
  • the skin 100 that has reached the inner blade hole 53 is further pushed toward the inside of the head 20, the skin 100 comes into contact with the thin portion 72 of the introduction suppressing unit 70. For this reason, the skin 100 is prevented from being introduced into the inner blade inner space 54.
  • the blade piece 52 of the inner blade 50 sandwiches the flange 110 introduced into the inner blade inner space 54 via the outer blade hole 32 ⁇ / b> A in cooperation with the outer blade 32. And when the inner blade 50 translates with respect to the outer blade 32, the pin 110 which was pinched is cut
  • the electric razor 1 includes the introduction suppression unit 70. For this reason, it becomes difficult for the skin 100 to be introduced into the inner blade inner space 54. For this reason, skin 100 becomes difficult to receive irritation.
  • the area of the distal end surface 72A of the thin part 72 is smaller than the area of the thick part 71. For this reason, the cut ridge 110 is less likely to be clogged between the introduction suppressing portion 70 and the blade piece 52.
  • the area of the thick portion 71 is larger than the area of the distal end surface 72A of the thin portion 72, the strength of the introduction suppressing portion 70 can be increased. Thereby, compared with the case where the area of the thick part 71 is smaller than the area of 72 A of front end surfaces, or the same, the introduction suppression part 70 becomes difficult to be damaged.
  • the shape of the tip of the thin portion 72 is a hemispherical shape. For this reason, compared with the structure where the shape of the front-end
  • the distal end surface 72A of the thin portion 72 is present on the inner blade inner space 54 side in the head height direction with respect to the distal end surface 52A of the blade piece 52. For this reason, in the head height direction, the front end surface 72A protrudes toward the outer blade 32 from the front end surface 52A, or the front end surface 72A and the front end surface 52A are present at the same position. Thus, it is difficult for the introduction suppressing unit 70 to prevent the introduction of the flange 110 into the inner blade inner space 54. For this reason, the shaving property of the electric shaver 1 is improved.
  • the thin portion 72 is disposed in the inner blade inner space 54 at a position corresponding to the short high-pressure portion RA. For this reason, it is difficult for skin to be introduced from the short high pressure portion RA into the inner blade inner space 54. For this reason, the skin becomes more difficult to receive irritation.
  • the electric shaver 1 of the second embodiment is different from the electric shaver 1 of the first embodiment in the following points, and has substantially the same configuration as the electric shaver 1 of the first embodiment in other points.
  • the inner blade unit 40 of the first embodiment has an introduction suppressing unit 70 shown in FIGS.
  • the inner blade unit 40 of the second embodiment includes an introduction suppression unit 270 shown in FIGS. 6 and 7 instead of the introduction suppression unit 70.
  • symbol as the component of the electric shaver 1 of 1st Embodiment is attached
  • the introduction suppressing portions 270 are arranged side by side in the head width direction and the head short direction.
  • the introduction suppression unit 270 includes a plurality of functional parts.
  • the introduction suppression unit 270 includes a thick portion 271 as a first suppression portion and a thin portion 272 as a second suppression portion. These functional parts constitute a part of one introduction suppressing unit 270.
  • the shape of the thick portion 271 is a column shape, for example, a quadrangular column shape.
  • the thick part 271 constitutes the basic part of the introduction suppressing unit 270.
  • the thick part 271 is connected to the joint part 60.
  • the shape of the thin portion 272 is a columnar shape, for example, a substantially cylindrical shape.
  • the thin portion 272 constitutes the tip portion of the introduction suppressing portion 270.
  • the thin portion 272 is provided as a protruding structure that protrudes from the tip portion of the thick portion 271 toward the inner blade hole 53.
  • the shape of the tip portion of the thin portion 272 is a hemispherical shape.
  • the distal end surface 272A of the narrow portion 272 is present on the inner blade inner space 54 side of the distal end surface 52A of the blade piece 52 in the head height direction.
  • the area of the distal end surface 272A of the narrow portion 272 (that is, the distal end portion of the introduction suppressing portion 270) is smaller than the area of the thick portion 271 (that is, the root portion of the introduction suppressing portion 270).
  • the area of the front end surface 272A is the area of the front end surface 272A in the plan view of the inner blade 50.
  • the area of the thick part 271 is the area of the thick part 271 in the plan view of the inner blade 50.
  • the electric shaver 1 of the third embodiment is different from the electric shaver 1 of the second embodiment in the following points, and has substantially the same configuration as the electric shaver 1 of the second embodiment in other points.
  • the inner blade unit 40 of the second embodiment has an introduction suppressing part 270 shown in FIGS. 6 and 7.
  • the inner blade unit 40 of the third embodiment has an introduction suppression unit 370 shown in FIG. 8 instead of the introduction suppression unit 270.
  • symbol as the component of the electric shaver 1 of 1st Embodiment is attached
  • each introduction suppressing portion 370 is a tapered shape that becomes thinner from the joint component 60 toward the inner blade hole 53, that is, from the root portion to the tip portion of the introduction suppressing portion 370.
  • the introduction suppression unit 370 includes a tip 371 and a root 372.
  • the shape of the tip 371 of the introduction suppressing unit 370 is a hemispherical shape.
  • the leading end 371 of the introduction suppressing portion 370 is present on the inner blade inner space 54 side of the leading end surface 52A in the head height direction.
  • the area of the tip 371 of the introduction suppression unit 370 (tip portion as the second suppression portion) is smaller than the area of the root 372 of the introduction suppression unit 370 (root portion as the first suppression portion).
  • the area of the tip 371 of the introduction suppressing unit 370 is the area of the tip 371 in the plan view of the inner blade 50.
  • the area of the root 372 of the introduction suppressing unit 370 is the area of the root 372 in the plan view of the inner blade 50.
  • the electric shaver 1 of the fourth embodiment is different from the electric shaver 1 of the second embodiment in the following points, and has substantially the same configuration as the electric shaver 1 of the second embodiment in other points.
  • the inner blade unit 40 of the second embodiment has an introduction suppressing part 270 shown in FIGS. 6 and 7.
  • the inner blade unit 40 of the fourth embodiment has an introduction suppression unit 470 shown in FIG. 9 instead of the introduction suppression unit 270.
  • the components of the electric shaver 1 of the fourth embodiment that are common to the electric shaver 1 of the first to third embodiments are denoted by the same reference numerals as the components of the electric shaver 1 of the first embodiment. . Part or all of the description regarding such components is omitted.
  • the shape of the introduction suppressing portion 470 is a tapered shape that becomes thinner from the joint component 60 toward the inner blade hole 53, that is, from the root portion to the tip portion of the introduction suppressing portion 370.
  • the introduction suppressing unit 470 includes a tip 471 and a root 472.
  • the shape of the tip 471 of the introduction suppressing part 470 is trapezoidal.
  • the leading end 471 of the introduction suppressing portion 470 exists on the inner blade inner space 54 side of the leading end surface 52A in the head height direction.
  • the area of the tip 471 of the introduction suppression unit 470 (tip portion as the second suppression portion) is smaller than the area of the root 472 of the introduction suppression unit 470 (root portion as the first suppression portion).
  • the area of the tip 471 of the introduction suppressing part 470 is the area of the tip 471 in the plan view of the inner blade 50.
  • the area of the root 472 of the introduction suppressing unit 470 is the area of the root 472 in the plan view of the inner blade 50.
  • the form of the electric shaver 1 illustrated in the above embodiments can take various forms different from the above embodiments as long as the object of the present invention is achieved.
  • the electric razor 1 of each embodiment described above can be modified as follows.
  • the introduction suppression part 70 of 1st Embodiment may be couple
  • the thick portion 71 and the thin portion 72 may be formed of different materials. Note that the same deformation as that of the present modification is also established in the introduction suppressing unit 270 of the second embodiment.
  • the introduction suppressing unit 70 of the first embodiment may have one, two, or four or more thin portions 72. In any case, when a plurality of thin portions 72 are formed, these thin portions 72 are arranged in the head short direction.
  • the inner blade unit 40 of 1st Embodiment although the inner blade hole 53 and the introduction suppression part 70 are provided in the same number, the introduction suppression part 70 may be provided in a number smaller than the inner blade hole 53. .
  • the introduction suppression part 70 By including at least one introduction suppressing unit 70 in the inner blade unit 40, an effect according to the effect obtained by the electric shaver 1 of the first embodiment is obtained.
  • the inner blade unit 40 of the second to fourth embodiments also has the same modification as this modification.
  • the introduction suppression part 70 of 1st Embodiment may be formed with a metal material. Note that the same deformation as that of the present modification is established in the introduction restraining portions 270, 370, and 470 of the second to fourth embodiments.
  • the tip surface 72A of the thin portion 72 may be present at the same position as the tip surface 52A of the blade piece 52 in the head height direction. Note that the same deformation as that of the present modification is established in the introduction restraining portions 270, 370, and 470 of the second to fourth embodiments.
  • the distal end surface 72A of the thin portion 72 may exist between the distal end surface 52A of the blade piece 52 and the outer blade 32 in the head height direction. According to this modification, the following effects can be obtained.
  • the introduction suppressing part 70 (tip surface 72A) is present between the tip surface 52A of the blade piece 52 and the outer blade 32, so that it is easy to come into contact with the habit.
  • the posture of the wrinkle tends to change from a sleeping posture to a posture that occurs. For this reason, it becomes easier to introduce into the inner blade hole 53 than in the case where the wrinkle is in a sleeping posture. For this reason, the shaving property of the electric shaver 1 is improved.
  • the same deformation as that of the present modification is established in the introduction restraining portions 270, 370, and 470 of the second to fourth embodiments.
  • the electric razor 1 of the first to fourth embodiments may be configured by a rotational motion method. In such a rotational movement method, the inner blade unit rotates with respect to the outer blade unit.
  • the electric shaver 1 of the first to fourth embodiments may have one or three or more inner blade units 40.
  • the electric razor 1 of the first to fourth embodiments may be configured as an electric device for cutting hairs other than wrinkles.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

L'invention porte sur un rasoir électrique (1), qui comprend : des lames externes (32) ; des lames internes (50) ; et une partie d'inhibition d'entrée (70). Les lames internes (50) sont disposées de façon à définir un trou entre lames (53) et un espace interne entre lames (54) communiquant avec le trou entre lames, et de façon à se déplacer en translation ou en rotation par rapport aux lames externes (32). La partie d'inhibition d'entrée (70) est disposée dans l'espace interne entre lames (54), dans une position apte à venir en contact avec la peau, et est exposée à l'extérieur des lames internes (50) par l'intermédiaire du trou entre lames (53). La surface d'une section de pointe (72A) de la partie d'inhibition d'entrée (70), en vue en plan des lames internes (50), est inférieure à la surface d'une section de base (71) de la partie d'inhibition d'entrée (70), en vue en plan des lames internes (50).
PCT/JP2014/005431 2013-12-04 2014-10-28 Rasoir électrique WO2015083317A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013251336A JP6436330B2 (ja) 2013-12-04 2013-12-04 電気かみそり
JP2013-251336 2013-12-04

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WO2015083317A2 true WO2015083317A2 (fr) 2015-06-11
WO2015083317A3 WO2015083317A3 (fr) 2015-08-20

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834017A (en) * 1972-09-05 1974-09-10 Sperry Rand Corp A dry shaver with hair guiding and skin stretching means
JPS583160U (ja) * 1981-06-30 1983-01-10 松下電工株式会社 電気かみそり
JPS5977882A (ja) * 1982-10-25 1984-05-04 松下電工株式会社 電気かみそり
JPS59101181A (ja) * 1982-11-30 1984-06-11 松下電工株式会社 電気かみそり
JP4775152B2 (ja) * 2006-07-21 2011-09-21 パナソニック電工株式会社 電気かみそり用の内刃及びその形状決定方法
DE102009031628A1 (de) * 2009-07-03 2011-01-05 Braun Gmbh Untermesser für Trockenrasierer
CN104602874B (zh) * 2012-12-13 2017-07-14 松下知识产权经营株式会社 电动剃刀

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