WO2020059714A1 - Outil de maquillage et recourbeur de cils - Google Patents

Outil de maquillage et recourbeur de cils Download PDF

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Publication number
WO2020059714A1
WO2020059714A1 PCT/JP2019/036391 JP2019036391W WO2020059714A1 WO 2020059714 A1 WO2020059714 A1 WO 2020059714A1 JP 2019036391 W JP2019036391 W JP 2019036391W WO 2020059714 A1 WO2020059714 A1 WO 2020059714A1
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WIPO (PCT)
Prior art keywords
eyelash curler
resin
eyelash
metal
makeup tool
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PCT/JP2019/036391
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English (en)
Japanese (ja)
Inventor
聡 尾形
智愛 藤岡
雅彦 名越
Original Assignee
株式会社資生堂
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Application filed by 株式会社資生堂 filed Critical 株式会社資生堂
Priority to JP2020548518A priority Critical patent/JP7480054B2/ja
Priority to CN201980059442.4A priority patent/CN112672663A/zh
Publication of WO2020059714A1 publication Critical patent/WO2020059714A1/fr

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/48—Eyelash curlers; Eyebrow curlers

Definitions

  • the present invention relates to a makeup tool and an eyelash curler.
  • an eyelash curler (eyelash curler, buhler) has a configuration using the principle of leverage, and is made of metal such as stainless steel using two fingers.
  • the parts that correspond to the skin are made of resin from above the metal.
  • eyelash curlers that partially cover or partially constitute a resin member (for example, Patent Documents 1 and 2).
  • the present invention has been made in view of the above circumstances, and aims to provide a resin-made makeup tool capable of performing the same operation as that of a metal, while ensuring strength without increasing the size of a general metal shape. I do.
  • Young's modulus is made of a resin material of 2500N / mm 2 ⁇ 40000N / mm 2, at least the maximum stress generating portion is section modulus provides a cosmetic tool configured to 5mm 3 ⁇ 40mm 3.
  • the same operation as that of a metal-made makeup tool can be performed without increasing the size of a general metal-made makeup tool while ensuring strength.
  • FIG. 1 is an overall view of an eyelash curler according to a first embodiment of the present invention.
  • FIG. 2 is an exploded view of the eyelash curler of FIG. 1.
  • the figure of the metal eyelash curler of a comparative example The figure explaining a fulcrum and a load point when an eyelash curler is approximated to a simple beam structure that is exposed.
  • FIG. 4 is an example of a cross-sectional shape of a beam forming a fixing member and a force-point member that are portions that receive a force, and is an explanatory diagram of a width (depth) (x) and a height (y) of an example cross section. The result of measuring the eyelash clamp pressure by a person when using a metal eyelash curler with a handmade measuring instrument.
  • Judgment table comparing SUS and 6PA + GF55% resin eyelash curlers A judgment table in which the section modulus was changed by changing the width x and height y of the beam using 6PA + GF55% resin as a material.
  • 9 is a table showing determination results for each material and each section modulus.
  • FIG. 12 is a view showing a stress distribution when analysis is performed under the second analysis condition in the eyelash curler 1 of FIG. 11 which is made of 6PA + GF55% resin.
  • FIG. 12 is a diagram showing a distribution of deformation when the eyelash curler 1 of FIG. 11 is analyzed under the second analysis condition and composed of 6PA + GF55% resin.
  • the figure which shows the section modulus of each part of the metal eyelash curler 9 which concerns on a comparative example. 12 is a table showing the clamping pressure when the handle of the eyelash curler 9 made of metal and the eyelash curler 1 of FIG. 11 made of 6PA + GF55% resin contact each other.
  • FIG. 5 is a diagram showing a hand-made measuring mechanism for measuring a grip force and a clamping pressure by applying a load that gradually changes by the device, and a load position by a first measuring device.
  • FIG. 18 is a diagram showing a comparison of measurement results when the grip force of the eyelash curler 1 of FIG. 11 and the metal eyelash curler 9 made of 6PA + GF55% resin are measured in the measurement environment shown in FIG. 17.
  • FIG. 18 is a diagram showing a comparison of the measurement results when the clamp pressure of the eyelash curler 1 of FIG. 11 and the metal eyelash curler 9 made of 6PA + GF55% resin was measured in the measurement environment shown in FIG. 17. Measurement results obtained by measuring the eyelash clamp pressure by a human when using the eyelash curler 1 of FIG.
  • FIG. 11 composed of 6PA + GF55% resin with a handmade measuring instrument.
  • the measurement result which measured the eyelash clamp pressure by the person at the time of use of the metal eyelash curler 9 using the sensor sheet.
  • FIG. 12 shows measurement results obtained by measuring the eyelash clamp pressure by a human when using the eyelash curler 1 of FIG. 11 composed of 6PA + GF65% resin using a sensor sheet.
  • the exploded view of the eyelash curler 2 of FIG. The figure which shows the example of a dimension of the eyelash curler 2 of 2nd Embodiment.
  • Four eyelash curler handles of the first embodiment made of metal, 6PA + GF55% resin, the second embodiment made of 6PA + GF55% resin, and the second embodiment made of PAMXD6 + GF50% resin 26 is a measurement result when the grip force (load) applied to the load point is measured in the measurement environment shown in FIG.
  • Clamp pressure of four eyelash curlers of the first embodiment made of metal, 6PA + GF55% resin, the second embodiment made of 6PA + GF55% resin, and the second embodiment made of PAMXD6 + GF50% resin Is measured in the measurement environment shown in FIG. Conversion table of measurement conditions.
  • the present invention relates to a cosmetic tool made of resin, for example, an eyelash curler (eyelash curler for entire eyelashes, partial eyelash curler), tweezers, scissors for beauty, and the like.
  • a cosmetic tool made of resin for example, an eyelash curler (eyelash curler for entire eyelashes, partial eyelash curler), tweezers, scissors for beauty, and the like.
  • FIG. 1 is an overall view of an eyelash curler according to a first embodiment of the present invention, which is an example of a makeup tool.
  • FIG. 2 is an exploded view of the eyelash curler of FIG.
  • the eyelash curler 1 of the present embodiment has a configuration similar to a general metal eyelash curler, and is integrally formed of a resin described later.
  • the eyelash curler 1 has a fixing member 10, a power point member 20, and an action member 30.
  • the fixing member (supporting portion) 10 includes an upper pressing portion 11, support portions 12A and 12B, branch support portions 13A and 13B, an arm 14, and a handle 16.
  • An engagement hole 15 is formed in the arm 14.
  • the upper press portion (contact member, upper clip, frame) 11 is a portion that comes into contact with the upper surface of the upper eyelash when curling the upper eyelash.
  • the support portions 12A and 12B are integrally formed from both ends in the width direction of the upper press portion 11, and extend in the up-down direction.
  • the branch support portions 13A and 13B have an upper end connected to the lower ends of the support portions 12A and 12B, a V-shaped lower space therebetween, and a lower end connected to the arm 14.
  • the columns 12A and 12B and the branch columns 13A and 13B function as columns.
  • the arm portion (first arm portion) 14 is an extension portion that connects between the upper press portion 11 and the handle 16. Further, in this example, the arm 14 extends in the same direction as the portion inside the handle 16.
  • the handle (handle, finger ring, handle, gripping portion) 16 has a ring shape in which a finger hole into which a finger enters is formed.
  • the thumb of the user is inserted into the finger hole of the handle 16 when the user curls the eyelashes by himself.
  • the practitioner's index finger, middle finger, or ring finger is inserted into the handle 16.
  • the inner periphery of the handle is the finger hook.
  • the fixing member 10 includes a handle 16, an arm 14 extending in the vertical direction, and a pair of columns 12A, 13A, which branch from the arm 14 into two and support both ends of the upper press portion 11. 12B, 13B and the upper press part 11 are integrally formed.
  • the arm 14 extends from the branch point to the handle 16 by a single arm, and the width (depth) and height (thickness) of the handle 16 are determined by the width and the width of the arm 14. It is the same thickness as the height.
  • small holes 151A and 151B are formed in the side surfaces on both sides forming the engagement hole 15 formed in the arm 14 and penetrate in the width direction.
  • the power point member 20 has arms 21 and 24 and a handle 25.
  • a first engagement hole (a distal engagement hole) 22 and a second engagement hole 23 are formed in the distal arm 21.
  • the extension portions (arm portions, second arms) 21 and 24 have different extension directions from the distal end arm 21 extending beyond the connection portion from the distal end portion, and are the same as the inner portion of the handle 25. It has a rear end arm 24 extending in the direction.
  • the distal arm 21 of the power point member 20 is inserted into the engagement hole 15 of the fixing member 10 from the distal end opposite to the handle 25, and the second engagement hole 23 and the engagement hole In a state where the small holes 151A and 151B on the side surface of the portion 15 coincide with each other, the pin 15 is locked by the pin shaft PS2 so as to pass through the second engagement hole 23 and the small holes 151A and 151B.
  • the power point member 20 can rotate with respect to the fixed member 10 about the pin axis PS2 as a rotation axis.
  • the stress generation range includes the maximum stress generation location where the stress becomes the largest. Note that the stress generation range is a region where a large amount of stress is generated, and a stress is also generated in other portions. Details of the maximum stress generation location will be described later with reference to FIG.
  • the handle (handle, finger ring, handle, gripping part) 25 has a ring shape with a finger hole into which a finger enters.
  • the index finger, the middle finger, or the ring finger of the user is inserted into the finger hole of the handle 25 when the user curls the eyelashes by himself.
  • the practitioner's thumb is inserted into the handle 25.
  • a load point C for defining the inner peripheral edge of the finger hole of the handle 25 and extending substantially in the same line from the arm portion 24 as a finger hook portion and actually moving it so as to sandwich it. Become.
  • the power point member 20 is formed integrally with a handle 25 and an extending arm 24.
  • the arms 21 and 24 are formed as a single piece and have the same thickness as the handle 25. .
  • the operating member (interlocking section, elevating section) 30 has a lower press section 31, link sections 32A and 32B, and a connection section 33.
  • the eyelash curler 1 When curling the upper eyelashes, the eyelash curler 1 is gripped in the state shown in FIG. 1, and the lower press portion (lower abutting member, pressure piece) 31 is positioned between the upper press portion 11 and the lower surface of the eyelashes Push up from below to make the upper lashes habit upward.
  • the eyelash curler 1 when curling the lower eyelashes, the eyelash curler 1 is gripped upside down from FIG. 1, and the lower press part 31 pushes down the upper surface of the eyelashes sandwiched between the upper press part 11 from above, Habit the lower lashes downward.
  • the upper ends of the link portions (elevating columns) 32A and 32B are connected to the lower press portion, are inclined in a substantially V shape, and the lower ends are connected to the connecting portion 33.
  • the connecting portion 33 has a three-dimensional U-shape (U-shape). Small holes 331A and 331B are formed on the side surfaces on both sides forming the connecting portion 33 so as to penetrate in the width direction.
  • the distal end of the distal side arm 21 of the power point member 20 is inserted inside the U-shape of the connecting portion 33 of the operation member 30, and the distal side engaging hole 22 and the small holes 331 ⁇ / b> A and 332 ⁇ / b> B on the side surface of the connecting portion 33 coincide with each other. In this state, it is locked by the pin shaft PS1 so as to pass through the front end side engagement hole 22 and the small holes 331A, 332B.
  • the action member 30 can move up and down in conjunction with it.
  • substantially circular (hook-shaped) engagement hooks (engagement portions) 311A and 311B are provided.
  • the engagement hooks 311A and 311B engage with the pair of columns 12A and 12B, thereby enabling the fixing member 10 to slide along the columns 12A and 12B.
  • the clipper rubber R (see FIG. 17A), which is an elastic member, is set in the groove on the upper surface of the lower press portion 31.
  • the operating member 30 causes the engaging hooks 311A, 311B to slide along the columns 12A, 12B of the fixed member 10 in accordance with the elevation of the distal end side engaging hole 22. Then, the lower press unit 31 is moved up and down.
  • the force member 20 moves the action member 30 up and down by rotating about a part of the fixed member 10 as a fulcrum.
  • the lower press portion 31 of the action member 30 approaches the upper press portion 11 of the fixing member 10, and applies pressure (clamps) to the eyelashes between the elastic member (the clipper rubber R) and the upper press portion 11. This gives the lashes a habit.
  • the fixing member 10 the power point member 20, and the action member 30 are each integrally formed of a resin, but details of the constituent resins will be described later.
  • a pin shaft which is a connecting shaft for connecting the members at the connecting portion between the power point member 20 and the acting member 30 and at the connecting portion between the fixing member 10 and the power point member 20.
  • PS1 which is a connecting shaft for connecting the members at the connecting portion between the power point member 20 and the acting member 30 and at the connecting portion between the fixing member 10 and the power point member 20.
  • PS2 rotatably fixed by PS2
  • the material forming the pin shafts PS1 and PS1 may be any material such as resin and metal.
  • pin shafts PS1 and PS2 are made of resin, all the constituent elements of the eyelash curler 1 are made of resin, and it is possible to realize completely metal-free.
  • FIG. 3 is a diagram of a metal eyelash curler 9 of a comparative example.
  • the eyelash curler 9 shown in FIG. 3 is an example of a general metal eyelash curler.
  • the fixing member 70 is bonded after the upper press portion (metal frame) 11 and the thin metal rod are separately formed.
  • the power point member 80 is formed by deforming a single thin metal bar.
  • the operation member 90 is bonded after a lower press portion (metal frame) 91 and a frame of a thin metal bar are separately formed.
  • the lower end is twisted in a ring shape to form a handle 76, and opposing portions at both ends corresponding to the upper columns 72 ⁇ / b> A and 72 ⁇ / b> B of the metal rod. Is formed with a long slit.
  • two thin metal rods (741, 742) are twisted in a ring shape at the lower end and are in contact with the arm 74, which is an extended portion, from the support portions 72A, 73A, 72B, 73B to a position short of the handle 76. Lined up or in close proximity.
  • the upper press portion 71 and the parallel columns 72A, 72B are connected by inserting and welding a metal frame into the notch holes on the inner surfaces at the tips of the parallel columns 72A, 72B, which are metal rods.
  • a handle 85 is formed by twisting the ring at the lower end, and two thin metal rods (811, 812) and (2) in the arms 81 and 84, which are extending portions from the handle 85 to the distal end. 841, 842) are in contact with each other.
  • the ends of a metal bar formed by bending a single metal into a substantially V-shape are welded to the lower press portion 91, which is a metal frame, so that the link portions 92A and 92B and the lower side are joined.
  • the press section 91 is connected.
  • the thin metal rod is inserted into the distal end engagement hole 82 of the power point member 80.
  • the upper ends of the link portions 92A and 92B are welded to the lower press portion 91 in a state where the link portions 92A and 92B are bent and formed into the shapes of the link portions 92A and 92B.
  • the handles 76 and 85 forming the ring are thinner by one than the arms 74 and (81, 84) combined into two.
  • the column of the cross section is thin, and the holding property is poor.
  • the eyelash curler 1 of the present invention shown in FIG. 1 is made of resin, the arm 14 (21, 24) of the fixing member 10 and the power point member 20 is made of one piece, It is the same thickness as.
  • the cross-sectional shape of the handles 16, 25 is made the same as that of the arms 14, 21, 24, so that the handles 16, 25 can be made thick. As a result, the holdability is improved, and even if force is applied, it does not sink into the finger and does not hurt, so that sufficient force can be applied.
  • the present inventor studied how to apply a force to a metal eyelash curler and conducted an experiment in order to verify the strength of the resin eyelash curler.
  • FIG. 4 is a diagram for explaining how to apply a force in the eyelash curler by approximation.
  • the upper diagram shows the positions of the fulcrum and the load point in the eyelash curler
  • the lower diagram shows the fulcrum and the load point of the eyelash curler, which are approximated to a simple beam (one-side concentrated load).
  • the power point member 20 which is the rotating part of the eyelash curler is restricted from rotating, and it can be considered that there is almost no rotation and movement. Therefore, the connecting part of the eyelash curler can be replaced with fulcrums A and B. .
  • the load point C is the handle 25 of the power point member 20, and the load P is the force (grip force) applied from the finger to the eyelash curler.
  • the fixing member 10 and the force-point member 20 function as “beams” of a simple beam that protrudes, and when considering load and action, as shown in FIG.
  • the width (depth) (x) and height (thickness) (y) of the cross section of the beam composed of the power point member 20 are considered.
  • FIG. 5 is an explanatory diagram of a width (depth) (x) and a height (y) of a cross section of an example of a beam composed of a fixed member and a power point member which are portions receiving a force.
  • the configuration of the beam having a rectangular cross section shown in FIG. 5 is an example, and the cross-sectional shapes of the fixing member 10 and the power point member 20 are not limited to the rectangle shown in FIG. 5, but may be circular, elliptical, semicircular, or the like. Other shapes may be used.
  • the present inventor selected a resin (see FIGS. 6 to 14) by a simulation based on an existing metal eyelash curler when external force (load P) is applied to the eyelash curler as an object. .
  • the clamp pressure which was the pressure when using a metal eyelash curler, was measured for six subjects.
  • the eyelashes are sandwiched by using a hand-made measuring mechanism in which a pressure sensor R (see FIG. 14) is installed immediately below a clipper rubber R installed on the lower press portion 91, which is a portion for sandwiching the eyelashes.
  • the pressure clamping pressure was measured. Note that the clamp pressure was measured using a self-made pressure sensor, and is therefore an index, and the unit is not set.
  • FIG. 6 shows the results of measuring the eyelash clamping pressure when using the metal eyelash curler 9 using a hand-made measuring mechanism.
  • the vertical axis represents the clamping pressure
  • the horizontal axis represents time (unit: seconds).
  • the six subjects are men and women in their twenties to fifties, and are assumed to be person A, person B, person C, person D, person E, and person F.
  • the maximum values of the clamping pressure were 328.26, 498.34, 380.67, 318.58, 238.9, and 257.33, respectively.
  • the maximum value of the clamping pressure for the resin-made eyelash curler described below was set to a target value with a margin of 498.34 in the above-mentioned experiment, with a margin.
  • the pressure applied to the clipper rubber R by the use of the actual subject can be measured as the clamp pressure.
  • the clamp pressure due to the manual force applied to the handles 16 and 25 is applied to the mechanical Numerical values were examined in order to convert the pressure (N) as a load (external force) that can be applied by the above method.
  • the load P when the metal eyelash curler 1 reaches a clamping pressure of 500 is measured by a tester and a handmade pressure sensor (see FIG. 17A), and the derived value is 10 N for each handle. . More specifically, since the grip force, which is the load applied to the handle, is about 17N to 21N (see the solid line in FIG. 18) before and after the clamping pressure is 500 (see the solid line in FIG. 19), the handle is set to approximately the median value of 20N. Both 16 and 25 were divided in half and 10N was led.
  • FIG. 7 shows a judgment table for comparing an eyelash curler made of SUS and a 6PA + GF55% resin.
  • the metal eyelash curler 9 is generally often made of stainless steel (SUS304).
  • the eyelash curler 1 of 6PA + GF55% resin in FIG. 7 is formed by imitating a general stainless steel eyelash curler.
  • the Young's modulus (N / mm 2 ) indicates a proportional constant of strain and stress in the coaxial direction and a longitudinal elastic modulus.
  • the section modulus Z (mm 3 ) is an index indicating the section performance of the member, and specifically, is a strength / resistance to bending.
  • Judgment of mechanical strength was made when the value of the stress generated in the material during use became less than the strength of the material itself, and the rigidity was secured to apply a force.
  • a general stainless steel (SUS304) metal eyelash curler 9 has a beam composed of the fixing member 10 and the force point member 20 when a load of 10 N is applied to the handles 16, 25. Even if the width x and the height y are as small as 2.75 mm, all the judgments are cleared because the tensile strength (strength) is sufficiently large and the amount of deflection is small.
  • FIG. 8 is a judgment table in which the section modulus is changed by changing the width x and the height y of the beam using 6PA + GF55% resin as a material.
  • FIG. 8 shows the results of evaluation by changing the dimensions (width, height) of the beam using an eyelash made of resin of PA + GF55%.
  • FIG. 9 shows the evaluation results when an eyelash curler is formed from a plurality of materials and used
  • FIG. 10 is a diagram showing the recommended range of the material of the present invention defined by the section modulus and the Young's modulus.
  • FIG. 9 shows SUS304 (stainless), polyamide (PA), a fiber reinforced resin obtained by adding 55% of glass fiber (GF) to PA, nylon 6/10, Evaluation results of polyether ether ketone (PEEK), polybutylene terephthalate (PBT), GF polyamide MXD6, and CF polyamide MXD6 when an eyelash curler having a dimension satisfying a cross-sectional coefficient of 7.5 to 32 (mm 3 ) was used. It is.
  • the polyamide MXD6 is a crystalline thermoplastic polymer obtained from meta-xylylenediamine (MXDA) and adipic acid, and the glass-reinforced polyamide MXD (PAMXD6 + GF50) used here is made of polyamide MXD6 made of glass fiber ( Commercially available Reny (registered trademark) 1022H containing 50% of (GF) was used. As carbon reinforced polyamide MXD6, commercially available Reny C408 obtained by mixing 40% of carbon fiber (CF) with polyamide MXD6 was used.
  • a portion surrounded by a square is a recommended range set by a simulation.
  • the recommended range is a material having a Young's modulus of 2500 to 40000 (N / mm 2 ) and a section modulus of 5 to 40 (mm 3 ).
  • the section modulus can be reduced as the Young's modulus of the resin increases. That is, as the Young's modulus of the resin increases, the strength can be ensured even if the resin is made thinner so as to be closer to a metallic one.
  • the section modulus is preferably 30 (mm 3 ) or less, and more preferably 20 (mm 3 ) or less.
  • the resin has a low Young's modulus and is weak, if the section modulus is increased, the strength may be satisfied by simulation.However, in consideration of the operability, the cross section should not be too large.
  • the upper limit of the coefficient was set to 40 (mm 3 ).
  • the material constituting the eyelash curler was prepared by mixing glass fiber (GF) with resin. It is preferable to form with fiber reinforced resin. For example, when glass fiber is added to a resin having the same section modulus, the Young's modulus increases, and the position on the graph of FIG. 10 moves rightward. Further, CF (carbon fiber, carbon fiber) may be mixed in addition to or instead of glass fiber. For example, in the case of a fiber-reinforced resin, it is preferable to mix glass fiber (GF) or carbon fiber (CF) in an amount of 30% by mass or more and 65% by mass or less.
  • the rigidity of the resin material itself (for example, PA) against deformation and breakage of the resin material itself can be enhanced.
  • a typical value of the Young's modulus is PA: 1200 to 2900 Mpa, but the Young's modulus can be increased (for example, to 4725 Mpa) by adding glass fiber. Therefore, a pressure for pinching the eyelashes close to the metal can be obtained.
  • the resin mixed with the glass fiber is not particularly limited as long as the resin can be mixed with the fiber.
  • the resin include polyamide (PA) (including various nylons), polyetheretherketone (PEEK), polyethylene terephthalate (PET), or polyphenylene sulfide (PPS), and polyamide MXD6.
  • the Young's modulus of the resin is about 3900 MPa
  • the glass fiber reinforced PEEK is about 6300 MPa
  • the Young's modulus of PET is about 2800 to 4200 MPa
  • the glass fiber reinforced PET is 9000 to 9900 MPa.
  • the Young's modulus of PETG and glass reinforced PETG is slightly larger than PET and glass reinforced PET
  • PPS is about 3300 MPa
  • glass fiber reinforced PPS is about 3900 MPa.
  • the Young's modulus of the glass fiber reinforced resin changes depending on the mixing ratio of the glass fiber.
  • the resin alone has a strong strength
  • a special polyamide MXD6 alone and has a Young's modulus of 5000 (N / mm 2 ) or more without being reinforced with glass fiber or carbon If the strength can be compensated for by simulation, any thickness in the range of the section modulus of 5 to 40 (mm 3 ) can be adopted as the material for the eyelash curler of the present invention.
  • the Young's modulus of the resin is 2500 (N / mm 2 ) or more, even if it is nylon 6/10, PA, PEEK, PET, PETG, PPS, etc., the above is recommended.
  • the section modulus By setting the section modulus large within the range, an eyelash curler can be formed by itself without mixing glass fibers.
  • the Young's modulus of the resin alone other than nylon 6/10 is about 2500 (N / mm 2 ) to 5000 (N / mm 2 ). If it is set slightly away from the lower end, for example, at least 10 (mm 3 ), a predetermined strength can be realized even with a single resin, and it can be used as a material for the eyelash curler of the present invention.
  • the section modulus may be smaller than the recommended range as long as the Young's modulus of the recommended range is satisfied.
  • PA + GF 55% was examined here.
  • the reinforcing resin (glass fiber) constituting the eyelash curler is formed of PA + GF 65% with an increased glass fiber content, the strength can be further increased.
  • the inventor analyzed stress and deformation of the eyelash curler of the first embodiment having specific dimensions using an example of a material included in the numerical range of the material selected above.
  • FIG. 11 is a diagram showing the section modulus of each part in an example of the resin eyelash curler 1 of the first embodiment.
  • the eyelash curler 1 used in the analysis and experiment described later was formed with the following dimensions shown in FIG. These dimensions correspond to dimensions calculated by the CAE as dimensions that can ensure strength.
  • Section modulus Z of the fixing member 10 is 14.98 mm 3.
  • Section modulus Z on the handle side of the power point member 20 is 14.98 mm 3.
  • Section modulus Z on the tip side of the power point member 20 10.92 mm 3
  • Section modulus Z of the supporting portion of the working member C 1.57 mm 3
  • the operability may decrease when the distal end portion of the distal end arm 21 moves when the power point member rotates.
  • the thickness of the distal end arm 21 of the power point member 20 is set to two levels.
  • section modulus is calculated on the premise of a rectangle, the section may be a circle, a hexagon, or the like.
  • FIG. 12 is a diagram showing analysis conditions for the eyelash curler 1 composed of 6PA + GF55% resin.
  • the XYZ axes are fixed to both ends of the upper press portion 11, which is the upper end of the fixing member 10, and the hinge portion (fulcrum B), which is the intersection of the fixing member 10 and the power point member 20, is fixed. , Fixed without friction.
  • a force of 25N + 25N was applied to the handles 16, 25 as a load.
  • the load 25N applied to the handle portions 16, 25 corresponds to a grip force 50N.
  • the load of 25N + 25N applied to the handles 16, 25 in this experiment is a load (load) larger than that during normal use.
  • the inventor performed a CAE analysis on the stress and deformation amount in the eyelash curler 1 of FIG.
  • FIG. 13 is a view showing a stress distribution when the eyelash curler 1 of FIG. 11 is made of 6PA + GF55% resin and analyzed under the second analysis condition.
  • the stress is consistent with the structure of the spring-out simple beam (one-side concentrated load) shown in FIG. 4, and is near the fulcrum B, which is the connection between the fixing member 10 and the power point member 20.
  • Maximum stress is occurring.
  • the maximum stress generation point in the fixing member 10 and the power point member 20 is within the range of the arm 14 and the arm portions 21 and 24 which is the stress generation range shown in FIG.
  • FIG. 13 shows an example in which a load of 163.6 MPa is applied around the fulcrum B of the distal end arm 21 of the power point member 20 by applying a larger load than in the normal use. The same applies to portions where stress is likely to be applied.
  • FIG. 14 is a diagram showing the distribution of the amount of deformation when the eyelash curler 1 composed of 6PA + 55% GF resin is analyzed under the first analysis condition.
  • FIG. 15 shows the dimensions of the metal eyelash curler 9 used for comparison.
  • FIG. 15 is a diagram showing an example of the dimensions of the metal eyelash curler 9 of the comparative example shown in FIG.
  • FIG. 16 shows the measurement results of the clamp pressure when the hands start contacting each other.
  • the pressure sensor 210 was installed immediately below the clipper rubber R, and the clamp pressure was measured.
  • the amount of displacement (movement) until the opposing surfaces of the handles 16, 25 (76, 85) start to contact is different due to the difference in the dimensions of each eyelash curler.
  • the amount of displacement corresponds to the amount of movement of the part of the fingers of the handles 16, 25 on the inner peripheral side of the finger holes. As the dimension of the element becomes thicker, the amount of displacement slightly increases.
  • the metal eyelash curler 9 according to the comparative example a size example shown in FIG. 15 made of SUS304 stainless steel will be used in the subsequent experiments.
  • the eyelash curler 1 having the dimensions shown in FIG. 11 when measuring FIGS. 18 and 19 is made of 6PA + GF55% resin.
  • the handles of the metal eyelash curlers 9 start contacting each other at a displacement of 23 mm, and the clamping pressure at that time is 750.
  • the handle of the resin-made eyelash curler 1 shown in FIG. 11 comes into contact with each other when it is displaced by 23 mm, and the clamping pressure at that time is 744.
  • FIG. 17 is a view showing a hand-made measuring mechanism for measuring a grip force and a clamping pressure by giving a load that gradually changes by the device, and a load position by a first measuring machine.
  • 17A is a diagram showing a measuring mechanism (a hand-made pressure sensor) for measuring a clamp pressure
  • FIG. 17B is a diagram showing a position where an eyelash curler is fixed by a first tester and a load position where a load is applied.
  • the tester fixes the eyelash curlers 1 and 9 with the handle 16 on the lower side as shown in FIG. That is, the load is applied from outside the handle 25.
  • the pressure sensor 210 shown in FIG. 17 (a) was the same as that used in FIG. 6 for measuring pinching by a human hand. In this manner, the pressure sensor 210 was installed immediately below the clipper rubber R, and the clamp pressure for clamping the eyelashes was measured.
  • FIGS. 18 and 19 show the measurement results when the resin eyelash curler 1 and the metal eyelash curler 9 of FIG. 11 of the first embodiment were measured in the measurement environment shown in FIG.
  • FIG. 18 shows a comparison of grip force
  • FIG. 19 shows a comparison of clamp pressure.
  • the grip force required to achieve the same displacement is substantially equal between the metal eyelash curler 9 and the resin eyelash curler 1. That is, it can be seen that the eyelash curler 1 is as easy to deform as the metal eyelash curler 9 according to the comparative example.
  • the clamp pressure in actual use was set to about 500 which is the target value as shown in FIG.
  • the displacement amount during use can be set to 14 mm.
  • the clamp pressure during use can be reduced as compared with the clamp pressure (maximum clamp pressure: 744) that is displaced to the position where the handles 16, 25 in FIG. (Hour clamping pressure ⁇ maximum clamping pressure), so that there is no need to bring the handles 16, 25 into contact with each other during use.
  • the amount of deformation of the clamp pressure during use can be given a margin with respect to the maximum clamp pressure, and the stress generated in the parts can be reduced.
  • FIG. 20 shows the result of measuring the eyelash clamp pressure when using the resin eyelash curler 1 with a hand-made measuring device.
  • the horizontal axis represents time
  • the vertical axis represents clamp pressure.
  • a pressure sensor was placed just below the clipper rubber between the eyelashes of the eyelash curler and the clamp pressure of the pressure between the eyelashes was measured.
  • FIG. 20A is a person A shown in FIG. 6A
  • FIG. 20B is a person B shown in FIG. 6B
  • FIG. 20C is a person C shown in FIG. And the same person.
  • FIG. 21 shows a measurement result obtained by measuring the eyelash clamp pressure by a human at the time of use of the metal eyelash curler 9 with the sensor sheet 410.
  • the vertical axis represents the clamping pressure
  • the horizontal axis represents time (unit: second).
  • the six subjects were different from the above-mentioned A to F, and were set as a person G, a person H, a person I, a person J, a person K, and a person L.
  • the maximum values of the clamping pressure of each person were 0.27, 0.16, 0.29, 0.21, 0.14, 0.19 (N: Newton), respectively.
  • FIG. 22 shows a measurement result obtained by measuring the eyelash clamping pressure by the human eye when using the eyelash curler 1 of the first embodiment made of 6PA + GF65% resin using the sensor sheet 410.
  • the horizontal axis represents time
  • the vertical axis represents clamp pressure
  • FIG. 22 (a) to (f) are the same persons as persons G, H, I, J, K, and L shown in FIGS. 21 (a) to 21 (f), respectively.
  • the maximum values of the clamping pressure of each person were 0.26, 023, 0.24, 0.19, 0.14, 0.25 (N: Newton), respectively.
  • any person achieves a clamp pressure (eyelash pinching pressure) equal to or higher than the metal eyelash curler 9 in FIG. 21 in the resin-made eyelash curler 1 of the second embodiment. You can see that it is.
  • the eyelash curler 1 of the first embodiment it is possible to realize curling of the eyelashes while making fine adjustments by using the same method as the metal eyelash curler 9 and applying the same force.
  • FIG. 23 is a configuration diagram of an eyelash curler 2 according to the second embodiment of the present invention.
  • FIG. 24 is an exploded view of the eyelash curler 2 according to the second embodiment of the present invention.
  • the material and the like are the same as the resin used in the first embodiment, but the hinge configuration of the engagement between the fixing member and the power point member and the engagement between the power point member and the action member are different. .
  • a fitting groove 53 which is a fitting groove (dent) in which the lower side of the hinge is recessed is formed in the power point member 50 at a portion slightly away from the distal end.
  • a fulcrum shaft 48 for fitting that extends in the width direction is provided in an engagement hole 45 formed in the arm 44.
  • the power point member 50 is fixed to the fixing member 40.
  • the force point member 50 and the fixing member 40 are connected by pushing down from above and engaging the fitting groove 53 with the fulcrum shaft 48 in the engagement hole 45.
  • the fulcrum shaft 48 of the fixing member 40 fitted in the fitting groove 53 of the fulcrum member 50 is used as a second fulcrum (the fulcrum B in FIG. 4), and the fulcrum member 50 is rotatably connected to the fixing member 40. I do.
  • FIG. 24 shows an example in which the fulcrum shaft 48 extends in the entire width direction of the engagement hole 45.
  • the fulcrum shaft 48 that can be fitted in the fitting groove 53 is provided in the engagement hole portion. It may be a double-sided projecting shape that protrudes from the inner side surface of the forty-fifty-five and has a broken central portion.
  • the operating member 60 is provided with a lower press portion 61 and link portions 62A and 62B having one end connected to the lower press portion 61.
  • the other ends of the link portions 62A and 62B are bent in a U-shape to be integrally formed, and a portion that connects the other ends of the link portions 62A and 62B at the other end is a cylindrical fitting. It is a tube 63.
  • the fitting tube 63 is an engaging portion of the operation member 60.
  • a fitting hook 52 having a concave upper side is formed.
  • the force point member 50 is pushed into the action member 60 from below, and the fitting hook 52 is engaged with the fitting cylinder 63 to connect the force point member 50 and the action member 60.
  • the fitting hook 52 of the power point member 50 and the fitting tube 63 of the operation member 60 are fitted, so that the operation member 60 can move in conjunction with the power point member 50.
  • connection between the fixing member 40 and the power point member 50 (the second fulcrum B in FIG. 4) and the connection between the power point member 50 and the operating member 60 (the first fulcrum A in FIG. 4) are formed in the hook shape. By doing so, attachment and detachment can be performed without using a shaft portion that penetrates components for connection.
  • the eyelash curler 2 of the second embodiment can realize a completely metal-free engagement portion of the components without using the pin shafts PS1 and PS2 for connecting the members in the first embodiment. .
  • the engaged state can be released by applying a force in the direction in which the hook comes off, disassembly and assembly can be realized by the user's hand.
  • the eyelash curler 2 is contaminated, it is possible to disassemble and clean the eyelash curler 2, whereby it is possible to clean even small irregularities of the engaging portion, and thereafter, it is possible to assemble.
  • a fitting hook 52 having a concave upper side is provided at the distal end of the distal arm 51 of the power point member 50, and a lower concave fitting is provided at a portion closer to the distal end than the handle 55 of the distal arm 51.
  • a mating groove 53 is formed, and the extending portions (second arm portions) 51 and 54 extend from the tip to the handle 55 by one.
  • the handle portion can be made as thick as the extending portion (arm portion). Can also improve the holdability.
  • the undulating irregularities 541 and 542 improve the fit.
  • a thumb is put in the finger hole of the handle 46 on the fixing member 40 side, and another finger is put in a finger hole of the handle 55 on the power point member 50 side.
  • the middle finger into which the force is most likely to enter, is inserted into the finger hole of the handle 55, or when the ring finger is inserted into the finger hole, the forefinger or the middle finger also supports the power point member 50 due to the uneven shapes 541 and 542, and the operation is performed. Becomes stable.
  • a finger hook portion 56 is provided at the rear end of the handle 55.
  • the middle finger is inserted into the finger hole of the handle 55 on the power point member 50 side
  • the ring finger is inserted into the finger holder 56, or the handle on the power point member 50 side is used.
  • the index finger is inserted into the finger hole 55
  • the middle finger is inserted into the finger hook portion 56
  • the ring finger is inserted into the finger hole of the handle 55 on the power point member 50 side
  • the little finger is inserted into the finger hook portion 56.
  • hit points 47 and 57 are provided in portions facing each other when the first handle 46 of the fixing member 40 and the second handle 55 of the power point member 50 are closed.
  • the rotation is regulated by providing the hit points 47 and 57 inside the handle, for example, when the rubber is crushed and thinned by repeated use, the clamp pressure of the press portion when the rubber is pushed in is insufficient. It may disappear. Therefore, when setting the hit points 47 and 57, it is preferable to set the length and the like including the case where the rubber is crushed.
  • FIG. 25 is a diagram illustrating a dimension example of the eyelash curler 2 of the second embodiment.
  • the eyelash curler 2 of the second embodiment was designed with the following dimensions shown in FIG.
  • Section modulus Z of the stress generation range of the fixing member 40 is 16.88 mm 3.
  • the section modulus Z of the arm portion 54, which is the stress generation range of the power point member 50, is equal to 16.875 mm 3.
  • the section coefficient corresponds to the section coefficient of the thinnest portion.
  • FIG. 26 is a diagram showing a measurement mechanism using a sensor sheet for measuring a grip force and a clamping pressure by giving a load that gradually changes by the device, and a load position by the second tester.
  • the testing machine fixes the eyelash curlers 1 and 9 with the handle 16 down as shown in FIG. 26B, and the handle 25 (55, 85). The load is applied from the inside of the finger hole.
  • the sensor sheet 410 When measuring the clamp pressure (FIG. 28), as shown in FIG. 26 (a), the sensor sheet 410 is placed immediately below the clipper rubber R for pinching the eyelashes of the eyelash curler 1 (2, 9). The test piece was installed and a pinching pressure was measured when a load changed by the second testing machine was applied to the position shown in FIG. 26 (b).
  • the other end of the sensor sheet 410 is connected to the information processing device 430 via the sensor connector 420.
  • the sensor sheet 410 installed immediately below the clipper rubber R in the groove of the lower press portion 31 (61, 91) receives the upper press portion 11 and the clipper when the load changed by the second measuring machine is applied.
  • the pressure (pinching pressure) of pressing the lower press unit 31 by the rubber R is measured, and the data is automatically transmitted to the information processing device 430 via the sensor connector 510.
  • the sensor sheet 410 shown in FIG. 26A is the same as that used for measuring the pinching by a human hand in FIGS. 21 and 22 described above.
  • the load is applied from the inside of the finger hole of the handle 25 (55, 85) as shown in FIG. 26 (b). 4 is a position almost close to the load point C.
  • a load is applied to the eyelash curler 1 (2, 9) in a manner closer to the state of use by a person than in the first measurement environment shown in FIG. , Grip force and clamp pressure can be measured.
  • FIG. 27 shows four types of the first embodiment made of metal, 6PA + GF65% resin, the second embodiment made of 6PA + GF65% resin, and the second embodiment made of PAMXD6 + GF50% resin.
  • 26 is a measurement result when the grip force (load) applied to the load point of the handle of the eyelash curler is measured in the measurement environment shown in FIG.
  • PAMXD6 means polyamide MXD6.
  • the shape of the eyelash curler 2 of the dimension example shown in FIG. 25 was used regardless of whether 6PA + GF65% resin or PAMXD6 + GF50% resin was used.
  • the eyelash curlers 1 and 2 of the first embodiment As shown in FIG. 27, when moved by the same amount of displacement, the eyelash curlers 1 and 2 of the first embodiment, the second embodiment composed of 6PA + GF65% resin, and the second embodiment composed of PAMXD6 + GF50% resin
  • the metal eyelash curler 9 is slightly insufficient, it has almost the same grip force.
  • FIG. 28 shows four types of the first embodiment made of metal, 6PA + GF65% resin, the second embodiment made of 6PA + GF65% resin, and the second embodiment made of PAMXD6 + GF50% resin.
  • 26 is a measurement result when the clamp pressure of the eyelash curler is measured in the measurement environment shown in FIG.
  • the eyelash curlers 1 and 2 of the first embodiment, the second embodiment composed of 6PA + GF65% resin, and the second embodiment composed of PAMXD6 + GF50% resin has almost the same clamping pressure, but slightly less than metal.
  • FIG. 29 is the correlation table.
  • the error of the measurement value is also taken into consideration, and the old measurement value is changed from 0.03% to 0.05%. Multiplies the numbers. As a result, the old measured value without any unit can be converted into the pressure unit (MPa) of the new measured value.
  • the eyelash curler 2 of the first embodiment can realize a desired clamping pressure and lift the eyelashes by displacing the eyelash curler slightly by 13 mm or slightly more than 13 mm.
  • the clamp pressure by the eyelash curler 2 of the second embodiment has the same clamp pressure as that of the eyelash curler 1 of the first embodiment. Can be expected.
  • the partial eyelash curler 3 has a configuration similar to that of the first embodiment or the second embodiment described above, and the width of the upper press portion 11P or the lower press portion 31P sandwiching the eyelashes is reduced.
  • a short configuration may be used. Therefore, the interval between the support portions 12C, 13C, 12D, and 13D of the fixing member 10P and the interval between the link portions 32C and 32D of the operation member 30P are also narrower than in the first embodiment.
  • a tweezers-type partial eyelash curler 4 may be used.
  • the same bending can be realized as that of a metal and the same stress can be realized by a clamping pressure. Therefore, the same eyelash curl effect as that of metal can be exhibited.
  • tweezers 5 may be used as an example of a makeup tool that can be made of resin.
  • the tweezers are used for beauty, and are used for removing human hair, eyebrows, nose hair, body hair and other hair (human hair), and animal hair.
  • ⁇ Makeup tool 2 (scissors)>
  • a makeup tool that can be made of resin, as shown in FIG. 33, cosmetic scissors may be used.
  • the cosmetic scissors 6 are used, for example, to cut human hair, eyebrows, nose hair, body hair, and other animal hair, and animal hair.
  • the makeup tool made of resin may be a razor, a nail clipper, or the like.

Landscapes

  • Hair Curling (AREA)

Abstract

Sans être supérieur à la forme d'outils de maquillage métalliques communs, cet outil de maquillage en résine assure une certaine résistance et peut être actionné de manière similaire à un outil métallique. Cet outil de maquillage (1) est formé à partir d'un matériau de résine ayant un module de Young de 2500 à 40000 N/mm 2, et au moins le site de contrainte maximale présente un module de section de 5 à 40 mm3.
PCT/JP2019/036391 2018-09-18 2019-09-17 Outil de maquillage et recourbeur de cils WO2020059714A1 (fr)

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS5940001U (ja) * 1982-09-07 1984-03-14 株式会社リリ− まつげカ−ル器
JP2001509035A (ja) * 1995-08-18 2001-07-10 マクマレン，アレクサンドラ 熱保持性を高めるよう適合された遠隔加熱まつげカール装置
JP2003136417A (ja) * 2001-11-07 2003-05-14 Lobtex Co Ltd ネジ締結工具
JP2011202778A (ja) * 2010-03-26 2011-10-13 Bando Chemical Industries Ltd オートテンショナ、その可動部材の製造方法
JP3191695U (ja) * 2014-04-24 2014-07-03 真紀 岩永 まつげ用カール器

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Publication number Priority date Publication date Assignee Title
JP2001070030A (ja) * 1999-09-08 2001-03-21 Shishida Seishindo:Kk ビューラ
JP4226935B2 (ja) * 2003-03-12 2009-02-18 株式会社貝印刃物開発センター 下まつ毛用としても使用できるまつ毛カール器
JP5467613B2 (ja) 2011-09-16 2014-04-09 サカエ理研工業株式会社 ミラー本体の支持構造
PL2942032T3 (pl) * 2014-05-07 2017-03-31 Braun Gmbh Przyrząd do higieny jamy ustnej
JP6897057B2 (ja) * 2016-10-21 2021-06-30 富士フイルムビジネスイノベーション株式会社 樹脂組成物、及び樹脂成形体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940001U (ja) * 1982-09-07 1984-03-14 株式会社リリ− まつげカ−ル器
JP2001509035A (ja) * 1995-08-18 2001-07-10 マクマレン，アレクサンドラ 熱保持性を高めるよう適合された遠隔加熱まつげカール装置
JP2003136417A (ja) * 2001-11-07 2003-05-14 Lobtex Co Ltd ネジ締結工具
JP2011202778A (ja) * 2010-03-26 2011-10-13 Bando Chemical Industries Ltd オートテンショナ、その可動部材の製造方法
JP3191695U (ja) * 2014-04-24 2014-07-03 真紀 岩永 まつげ用カール器

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JPWO2020059714A1 (ja) 2021-08-30
TW202019318A (zh) 2020-06-01

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