CN112822957A

CN112822957A - Eyelash curler

Info

Publication number: CN112822957A
Application number: CN201980061178.8A
Authority: CN
Inventors: 尾形聪; 名越雅彦; 藤冈智爱
Original assignee: Shiseido Co Ltd
Current assignee: Shiseido Co Ltd
Priority date: 2018-09-18
Filing date: 2019-09-17
Publication date: 2021-05-18
Also published as: JP2023162309A; TW202019317A; WO2020059690A1; JPWO2020059690A1

Abstract

The resin eyelash curler can be handled in the same manner as metal eyelash curler while ensuring strength without increasing its size as compared with the general metal eyelash curler. An eyelash clip (1) having: a fixing member (10) integrally formed with an upper pressing portion (11); an action member (30) having a lower pressing portion (31) that can move up and down relative to the upper pressing portion (11); and a force point member (20) that moves the action member (30) up and down by rotating with a portion engaged with the fixed member (10) as a fulcrum, wherein the fixed member (10), the action member (30), and the force point member (20) are each integrally formed of resin.

Description

Eyelash curler

Technical Field

The invention relates to an eyelash clip.

Prior Art

Generally, eyelash curlers (eyelash curlers ) are configured using the principle of leverage, and are formed of metal such as stainless steel using 2 fingers.

However, in a general metal eyelash curler using the principle of leverage, 1 metal rod is twisted and formed into a ring shape in the grip portion, and 2 metal rods extend side by side in the other portion, so that the metal section in the grip portion is thin and the holding property is poor. Furthermore, metal-allergic people cannot use them.

Therefore, in order to prevent metal allergy and to make the skin soft, eyelash clips have been proposed in which a portion corresponding to a grip portion to be in contact with a finger or a contact surface to be in contact with an eyelid is partially covered with a resin from above the metal or a part of a member is partially formed of a resin (for example, patent documents 1 and 2).

There is also an eyelash curler having a spring as an eyelash curler which is made of resin on the entire outer side without using metal on the outer side (for example, patent document 3).

Documents of the prior art

Patent document

Patent document 1: japanese Utility model application laid-open No. Sho 59-40002

Patent document 2: japanese laid-open patent publication No. 2007-68695

Patent document 3: japanese patent laid-open publication No. 2004-57581

Disclosure of Invention

Problems to be solved by the invention

However, if a resin portion is attached to a part of a metal eyelash clip or a part of the metal eyelash clip is replaced with a resin as in

patent document

1 or 2, the number of manufacturing steps for assembly is increased as compared with a metal eyelash clip alone, and productivity is accordingly lowered.

Further, if a resin eyelash curler is formed in the same shape as a general metal eyelash curler, strength for the eyelash curler is insufficient, and therefore, the entire outer side shown in patent document 3 is a resin eyelash curler, and a spring for the eyelash curler is provided. However, the spring is provided, and thus the structure is complicated and large. In addition, in this configuration, the appearance is not similar and the operation method is different compared to a general metallic eyelash curler using a lever.

In view of the above circumstances, an object of the present invention is to provide a resin eyelash clip which can be handled in the same manner as a metal eyelash clip while securing strength without increasing the size of the resin eyelash clip compared to a general metal eyelash clip.

Means for solving the problem

In order to solve the above problem, one embodiment of the present invention is:

provided is an eyelash clip having:

a fixing member integrally formed with an upper pressing portion;

an action member, the lower pressurizing part of which can move up and down relative to the upper pressurizing part; and

a force point member that moves the acting member up and down by rotating with a portion engaged with the fixed member as a fulcrum;

the fixing member, the acting member, and the force point member are integrally formed of resin.

ADVANTAGEOUS EFFECTS OF INVENTION

According to one aspect, the resin-made eyelash curler can be handled in the same manner as a metal eyelash curler while securing strength without increasing its size as compared with a general metal eyelash curler.

Drawings

Fig. 1 is (a) an overall perspective view of an eyelash clip according to embodiment 1 of the present invention.

Fig. 2 is an overall perspective view (second) of the eyelash clip of embodiment 1.

Fig. 3 is an exploded view of an eyelash clip of embodiment 1.

Fig. 4A is a front view of an eyelash clip of embodiment 1.

Fig. 4B is a rear view of an eyelash clip of embodiment 1.

Fig. 5A is a front perspective view of a metallic eyelash curler of a comparative example.

Fig. 5B is a rear perspective view of a metallic eyelash curler of a comparative example.

Fig. 6A is a view illustrating a fulcrum and a load point in the eyelash curler.

Fig. 6B is a diagram illustrating a fulcrum and a load point in a case of an approximate cantilever simple beam configuration.

Fig. 6C is a view showing a cross-sectional view of a beam portion of the eyelash clip.

Fig. 7A is a view showing a configuration example of an eyelash curler of the present invention in consideration of a ratio of force in a force point member and a movable angle.

Fig. 7B is a view showing an example of the structure of the eyelash curler in consideration of the force ratio of the force point member.

Fig. 8A is a table showing evaluation results when eyelash curlers are formed from a plurality of materials and used.

Fig. 8B is a graph showing an implementable range of the resin for eyelash clips based on young's modulus and section modulus.

Fig. 9 is an overall perspective view of a eyelash curler for partial use according to a modification example of embodiment 1 of the present invention.

Fig. 10 is (a) an overall perspective view of an eyelash clip according to embodiment 2 of the present invention.

Fig. 11 is an overall perspective view (second) of the eyelash clip of embodiment 2.

Fig. 12 is an exploded view of an eyelash clip of embodiment 2.

Fig. 13A is a front view of an eyelash clip of embodiment 2.

Fig. 13B is a rear view of an eyelash clip of embodiment 2.

Detailed Description

Hereinafter, specific embodiments will be described with reference to the drawings. In the following description, the same components are denoted by the same reference numerals in the drawings, and redundant description thereof may be omitted.

The present invention relates to a resin-made eyelash curler (eyelash curler for global use, eyelash curler for local use).

< embodiment 1 >

Fig. 1 is an overall perspective view of an eyelash clip according to embodiment 1 of the present invention. Fig. 2 is an overall perspective view of the eyelash clip of embodiment 1, viewed from a different direction from fig. 1. Fig. 3 is an exploded view of the eyelash clip of fig. 1.

The eyelash clip 1 of the present embodiment is similar in configuration to a general metal eyelash clip, and is integrally formed for each member by the following resin.

The eyelash clip 1 has a fixing member 10, a force point member 20 and an acting member 30.

The fixing member (also referred to as a support portion) 10 has an upper pressing portion 11, parallel stays 12A, 12B, inclined stays 13A, 13B, an arm 14, and a hand-held portion 16. The arm 14 serving as a shank has a support hole 15. The arm 14 is also present above the support hole 15, and above the support hole 15 is a junction 141J that joins the

inclined struts

13A and 13B.

The upper pressing portion (also referred to as an abutting member, an upper clip, a frame) 11 is a portion that abuts the upper surface of the upper eyelashes when the upper eyelashes are curled.

The parallel stays 12A and 12B are formed integrally connected from both ends in the width direction of the upper pressing portion 11, and extend in the vertical direction. The

inclined struts

13A and 13B have upper ends connected to lower ends of the

parallel struts

12A and 12B, lower intervals narrowed in a V-shape, and lower ends connected to the arm 14. The parallel stays 12A, 12B and the oblique stays 13A, 13B function as stay portions.

The arm (also referred to as the 1 st arm portion, shank portion, shaft portion) 14 is an extension portion connecting the

inclined legs

13A, 13B and the hand-held portion 16. In this example, the arm 14 extends in the same direction as the linear portion 161 (see fig. 3) which is an inner portion of the hand-held portion 16.

The hand-held portion (handle, ring, handle, grip) 16 is in the shape of a ring formed with a finger hole into which a finger enters. The user's thumb is often inserted into the finger hole of the hand grip 16 while the user curls up the eyelashes himself. Alternatively, when curling upper eyelashes or curling lower eyelashes by a dresser such as a makeup stylist, the index, middle, or ring finger of the dresser is often inserted into the finger hole of the hand-held portion 16.

In the present invention, the fixing member 10 is integrally formed with a hand-held portion 16, an arm 14 extending in the vertical direction, a pair of

column portions

12A, 13A, 12B, 13B branched into 2 from the arm 14 and supporting both end portions of the upper pressing portion 11, and the upper pressing portion 11.

Referring to fig. 3,

small holes

151A and 151B penetrating in the width direction are formed in side surfaces (side walls) on both sides of the support hole 15 formed in the forming arm 14. In the present configuration, the side surface of the support hole 15 is defined to be wider than the other portions of the arm 14, but may be the same width as the other arms 14.

The force point member 20 has

arm portions

21, 24 and a hand portion 25. The front end side arm 21 is formed with a front end hole (front end engagement hole) 22 as a 1 st engagement hole and a fulcrum hole (fulcrum engagement hole) 23 as a 2 nd engagement hole.

The arm portions (also referred to as 2 nd arm portion, shank portion, shaft portion) 21, 24 have: a front end side arm 21 extending from the front end portion beyond the connection portion; and a center arm 24 extending in the same direction as the linear portion 251 (see fig. 3) which is the inner portion of the hand-held portion 25, unlike the front end side arm 21.

The distal end side arm 21 of the force point member 20 is inserted into the support hole portion 15 of the fixing member 10 from the end portion on the distal end side opposite to the hand-held portion 25, and is locked by a pin shaft PS2 so as to pass through the support hole 23 and the

small holes

151A, 151B in a state where the support hole 23 coincides with the

small holes

151A, 151B on the side surface of the support hole portion 15.

By this engagement, the force point member 20 can rotate with respect to the fixed member 10 about the pin shaft PS2 as a rotation axis. That is, the force point member 20 is rotated using the principle of the lever of type 1, with the hand-held portion 25 as a force point, the engaging portion with the fixed member 10 as a fulcrum, and the upper end portion as an action point.

When the force point member 20 is rotated with respect to the fixing member 10, the arm 14 of the fixing member 10 and the

arm portions

21 and 24 of the force point member 20 shown in fig. 3 are in a stress generating range. The stress generation range includes a maximum stress generation portion where the stress becomes maximum in use. The stress generation range is a region where relatively large stress is generated, and stress is generated in other regions.

The hand-held portion (handle, ring, handle, grip) 25 is ring-shaped to form a finger hole for a finger to enter. For example, the index, middle, or ring finger of the user is often inserted into the finger hole of the hand-held portion 25 when the user curls up the eyelashes by himself. Alternatively, when eyelash is curled by the dresser or curled down by himself/herself, the dresser's thumb is often inserted into the hand-held portion 25.

The force point member 20 is integrally formed with a hand-held portion 25 and extending

arm portions

21, 24, and in the force point member 20, the

arm portions

21, 24 are formed by one piece and have the same thickness as the hand-held portion 25.

As described above, the distal end arm 21 is provided with the fulcrum hole 23 serving as a fulcrum and the distal end hole 22 serving as an action point, and the center arm 24 extends obliquely to the distal end arm 21. The center arm 24 extends in the same direction as the linear portion 251 (see fig. 3) which is the inner portion of the hand-held portion 25. Since the linear portion 251 of the hand-held portion 25 continuously extending from the arm 24 is substantially parallel to the linear portion 161 of the hand-held portion 16 continuously extending from the arm 14 due to the inclination of the

arm portions

21, 24 of the force point member 20, a force can be applied without waste.

Referring to fig. 1, 2, and 3, in the fixing member 10, the hand-held portion 16 is configured to form a finger hole by a straight portion 161 and a curved portion 162, the straight portion 161 is branched from the lower end of 1 arm 14 in the thickness direction y (see fig. 6C) at a branch point BP1 and extends linearly from the arm 14, and the curved portion 162 is protruded from the lower end of the straight portion 161 in the 1 st thickness direction and folded back and returned to the branch point BP.

Further, in the force point member 20, the hand-held portion 25 is configured to form a finger hole by a straight portion 251 and a bent portion 252, the straight portion 251 is branched from the lower end of the center arm 24 of the 1

arm portions

21, 24 in the thickness direction at a branch point BP2 and linearly extends from the center arm 24 which is a part of the arm portion, and the bent portion 252 is projected from the lower end of the straight portion 251 in the 2 nd thickness direction which is the opposite direction to the 1 st thickness direction and folded back and returned to the branch point BP 2.

In the present embodiment, the finger holes formed in the hand-held

portions

16 and 25 have a teardrop shape.

The action member (interlocking section, lifting section) 30 has a lower pressing section 31,

link sections

32A and 32B, and a connecting section 33.

When curling the upper eyelashes, the eyelash curler 1 is gripped in the state shown in fig. 1, and the lower pressing portion (lower abutment member, pressing piece) 31 pushes up the lower surface of the eyelashes pinched between the lower pressing portion and the upper pressing portion 11 from the lower side, thereby curling the upper eyelashes upward.

Further, when curling the lower eyelashes, the eyelash clip 1 is grasped upside down from fig. 1, and the lower pressing portion 31 pushes down the upper surface of the eyelashes sandwiched between the upper pressing portion 11 from the upper side, so that the lower eyelashes are curled downward.

The link portions (lifting/lowering support posts) 32A and 32B are inclined in a substantially V-shape with upper ends connected to the lower pressing portion 31 and lower ends connected to the connecting portion 33.

In the present embodiment, a joining portion 332J where the

link portions

32A and 32B join in front of the engagement groove portion is provided on the upper end side of the connecting portion 33. The confluence portion 332J reinforces the

thinnest link portions

32A, 32B in the eyelash curler 1.

The connection portion 33 has a U-shaped (コ -shaped) engagement groove portion at the front end of the solid body.

Small holes

331A and 331B penetrating in the width direction are formed in the side surfaces on both sides where the connection portion 33 is formed.

The tip of the tip-end side arm 21 of the force point member 20 is inserted into the U-shaped inner side of the connecting portion 33 of the acting member 30, and is locked by the pin shaft PS1 so as to pass through the tip hole 22 and the

small holes

331A, 331B in a state where the tip hole 22 coincides with the

small holes

331A, 331B on the side surface of the connecting portion 33.

By this engagement, when the force point member 20 rotates about the pin PS1 as a rotation axis, the acting member 30 can be lifted and lowered together in an interlocking manner.

Further, engaging hooks (engaging portions, both end hooks) 311A and 311B having a substantially circular shape (hook shape) and partially missing are provided at both left and right ends of the lower pressing portion 31. The engaging

hooks

311A and 311B are engaged with the pair of

parallel stays

12A and 12B, and the lower pressing portion 31 is slidably movable along the parallel stays 12A and 12B of the fixing member 10.

In fig. 3, an example is shown in which the engagement hooks 311A and 311B are open to the side (depth direction), but in the present embodiment, the engagement hooks 311A and 311B may be open to the rear (2 nd thickness direction) as viewed from the front.

Further, a jig rubber CR (see fig. 2) as an elastic member is inserted into the upper surface of the lower pressing portion 31. Therefore, a groove 312G into which the jig rubber CR is inserted is formed in the upper surface of the lower pressing portion 31.

With this configuration, if the hand-held portion 25 on one end side is moved so as to approach the hand-held portion 16, the force point member 20 pivots about the pivot pin PS2, which is the connection portion with the fulcrum hole 23 and the

small holes

151A and 151B, as the fulcrum (fulcrum B), whereby the tip end hole 22 connected to the connection portion 33 of the action member 30 on the other end side moves in the direction opposite to the movement of the hand-held portion 25, and the action member 30 is pushed up together with the pivot pin PS 1.

Thus, by moving the hand-held portion 25, the operation member 30 moves up and down in accordance with the movement of the distal end hole 22, and the engagement hooks 311A and 311B move up and down the lower pressing portion 31 while sliding along the

parallel support columns

12A and 12B of the fixing member 10.

The force point member 20 is configured to rotate about a part of the fixing member 10 as a fulcrum, thereby moving the acting member 30 up and down.

The eyelashes are curled by the lower pressing portion 31 of the acting member 30 approaching the upper pressing portion 11 of the fixing member 10 and applying pressure (pinching) to the eyelashes between the clip rubber CR and the upper pressing portion 11.

Fig. 4A is a front view of an eyelash clip 1 of embodiment 1, and fig. 4B is a rear view of the eyelash clip 1 of embodiment 1.

Referring to fig. 4A and 4B, assuming that the direction perpendicular to the direction in which the force point member 20 rotates is the depth direction, at least a part of the arm (1 st arm portion) 14 in the fixing member 10 is equal to the width (x1) of the 1 st hand-held portion 16 in the depth direction. Further, in the force point member 20, the central arm 24 as at least a part of the 2

nd arm portions

21, 24 is equal to the width (x1) in the depth direction of the 2 nd hand-held portion 25.

Referring to fig. 1 to 4B, the linear portion 161 and the curved portion 162 of the 1 st hand-held portion 16 overlap the linear portion 251 and the curved portion 252 of the 2 nd hand-held portion 25 in the depth direction.

Here, "equal width" and "overlap" include not only the case of complete equality and the case of complete overlap, but also the case of including some degree of error and the case of overlapping partially. For example, the

linear portions

251 and 161 and the

curved portions

252 and 162 may have different widths, and in this case, a portion of a thicker portion overlaps a portion of a thinner portion in the depth direction.

Referring to fig. 1 to 4B, in the present embodiment, the arm 14 extends to the hand-held portion 16 from the branch point by one, and the width (depth) and height (thickness) of the hand-held portion 16 are the same as the width and thickness of the arm 14 in the depth direction.

With this configuration, since the force for pinching the eyelashes is directly applied from the fingers during operation via the

arm portions

14, 21, 24 that extend in the same direction with the same width from the hand-held

portions

16, 25 that overlap in the depth direction, and with the same thickness, the force for pinching the eyelashes is easily transmitted.

In the eyelash curler 1, the fixing member 10, the force point member 20, and the acting member 30 are integrally formed of resin, and details of the resin to be formed will be described later.

In the present embodiment, the connecting portions between the force point member 20 and the acting member 30 and the connecting portions between the fixing member 10 and the force point member 20 are rotatably fixed by the pins (PS1, PS2) serving as connecting shafts for connecting the members, and the pins PS1, PS1 may be made of any material such as resin or metal.

Further, if the pins PS1 and PS2 are made of resin, all the components constituting the eyelash curler 1 are made of resin, and thus, metal is not contained at all.

< comparative example >

Fig. 5A and 5B are views of a metallic eyelash curler of a comparative example. The eyelash curler 9 shown in fig. 5A and 5B is an example of a general metal eyelash curler. Fig. 5A is a front perspective view of a metallic eyelash clip 9 of a comparative example, and fig. 5B is a rear perspective view of the metallic eyelash clip 9 of the comparative example.

The following description is different from the construction of the eyelash curler 1 of the present invention shown in fig. 1 in the point of the eyelash curler 9 made of metal.

In the metallic eyelash curler 9 shown in fig. 5A and 5B, the fixing member 70 is formed by forming an upper pressing portion (metal frame) 11 and a thin metal rod, respectively, and then they are bonded. The force point member 80 is formed by deforming a thin metal rod. The working member 90 is formed by forming a lower pressing portion (metal frame) 91 and a thin metal rod, and then they are bonded to each other.

Specifically, in the fixing member 70, the metal rod is processed, and the lower end thereof is twisted into a ring shape to form the holding portion 76, and the vertically long cutout holes are formed in advance in the opposite portions of the upper both ends of the metal rod corresponding to the parallel stays 72A and 72B. At this time, the lower end is twisted into a ring shape, and 2 thin metal rods (741, 742) are arranged in a state of contacting or approaching each other in the arms 74 as extending portions from the

column parts

72A, 73A, 72B, 73B to the front of the hand-held part 76. Then, the metal frame is inserted into and welded to the cutout holes of the inner surfaces of the distal ends of the parallel stays 72A and 72B as metal rods, whereby the upper pressurizing portion 71 is connected to the parallel stays 72A and 72B.

In the force point member 80, the lower end is twisted into a ring shape to form a hand-held

portion

85, and 2 thin metal rods (811, 812), (841, 842) are arranged in a state of being in contact with the

arm portions

81, 84 as extension portions from the hand-held portion 85 to the tip.

In the action member 90, the end portion of a metal rod formed by bending 1 metal into a substantially V shape is welded to the lower pressing portion 91 as a metal frame, and the

link portions

92A and 92B are connected to the lower pressing portion 91.

In the action member 90, when the substantially V-shaped apexes of the

link portions

92A and 92B are connected to the force point member 80, the

link portions

92A and 92B are bent into the shape of the

link portions

92A and 92B in a state where a thin metal rod is inserted into the tip end engagement hole 82 of the force point member 80, and in this state, the upper ends of the

link portions

92A and 92B are welded to the lower pressing portion 91. In this way, the forming of the reaction member 90 and the connection of the reaction member 90 and the force point member 80 are performed simultaneously, and therefore, the reaction member 90 and the force point member 80 do not separate after the manufacture.

In this configuration, since the hand-held

portions

76 and 85 forming the loop in the fixing member 70 and the force point member 80 have a fineness corresponding to 1 arm with respect to the arms 74, (81, and 84) collected into 2 arms, the hand-held

portions

76 and 85 have a thin cross-sectional column and are poor in holding performance.

In contrast, since the eyelash curler 1 of the present invention is made of resin, the arm 14(21, 24) is made of one piece and has the same thickness as the hand-held

portion

16, 25 in the fixing member 10 and the force point member 20.

In this way, in the configuration of the present invention, since the cross-sectional shape of the hand-held

portions

16, 25 is made the same size as the

arm portions

14, 21, 24 in the fixing member 10 and the force point member 20, the hand-held

portions

16, 25 can be thickened and the holding property can be improved, and the hand-held portions can be sufficiently applied without being painful without being caught by the fingers even if force is applied.

Further, in the eyelash curler 1 of the present invention, referring to fig. 3, 4A and 4B, the straight portion 161 and the curved portion 162 of the 1 st hand-held portion 16 and the straight portion 251 and the curved portion 252 of the 2 nd hand-held portion 25 overlap each other in the depth direction.

Therefore, compared to a hand-held portion configured by twisting a straight portion and a curved portion as in the metal configuration shown in fig. 5A and 5B, the hand-held portion overlapped in the depth direction directly applies a force, and therefore, the operation is easier and the force is more easily applied to the eyelashes.

In the metallic eyelash curler 9, the arm 74 of the fixing member 70 is formed of 2

metal rods

741 and 742, and the arm 81 of the force point member 80 is laterally sandwiched and the pin 83 is inserted into the sandwiching portion 75 by the sandwiching portion 75 which is located adjacent to and below and is expanded by the

inclined struts

73A and 73B by the gap between the rods. Therefore, the upper side of the portion where the fulcrum of the arm 81 is sandwiched by the sandwiching portion 75 is exposed. When eyelash curling is performed using this configuration, if the force point member 80 is rotated with respect to the fixing member 70, hair, tissues, cosmetic cotton, or the like may be caught in the portion where the fulcrum of the arm 81 is sandwiched by the sandwiching portion 75.

In contrast, in the present invention, since the merging portion 141J is present at the upper end of the upper arm 21 of the support hole portion 15 through which the force point member 20 is inserted in the fixed member 10, the upper side of the fulcrum of the force point member 20 that rotates with respect to the fixed member 10 is not exposed. Therefore, even if hair or the like exists in the vicinity, the hair or the like is less likely to be caught by the engagement portion between the force point member 20 and the fixing member 10.

< formation approximation >

The shape of the eyelash curler is complicated, and therefore, the shape calculation is performed instead of the simple shape.

Fig. 6A, 6B, and 6C are diagrams approximately explaining the manner of applying force in the eyelash curler. Fig. 6A is a view showing positions of a fulcrum and a load point in the eyelash curler, and fig. 6B is a view of approximating the fulcrum and the load point of fig. 6A to a cantilever simple beam (one-side concentrated load). Fig. 6C is a cross-sectional view of the beam portion of the fixed member and the force point member, which corresponds to the cross-section D in fig. 6A.

It is considered that the rotation portion of the eyelash clip, i.e., the force point member 20 is restricted from rotating and hardly rotating and moving at the moment of clipping eyelash, and therefore, the connection portion of the eyelash clip shown in fig. 6A may be replaced with the fulcrum A, B of fig. 6B.

The load point C is set as the hand-held portion 25 of the force point member 20, and the load P is set as the force (gripping force) applied from the fingers to the eyelash curler.

Here, the fixing member 10 and the force point member 20 function as a "beam" of the cantilever simply supported beam, and when considering the load or action, as shown in fig. 6C, the width (depth) (x) and the height (thickness) (y) of the cross section of the beam including the force receiving portion, that is, the fixing member 10 and the force point member 20 are considered.

In the description, as shown in fig. 6A, the direction in which the force point member 20 rotates is referred to as a rotational direction, and a direction perpendicular to the rotational direction is referred to as a depth direction. As shown in fig. 6C, the direction perpendicular to the depth direction in the cross section of the fixing member 10 and the force point member 20 is the thickness direction.

As shown in fig. 6C, the cross-sections of the arm 14 and the hand-held portion 16 of the fixing member 10 and the

arm

21, 24 and the hand-held portion 25 of the force point member 20 to which the force is directly applied are preferably quadrangular or rounded quadrangular in order to obtain a stronger strength by increasing the cross-sectional area without changing the thickness of the circular metal. However, the cross-sectional shape of the beam having a square cross-section shown in fig. 6C is not limited to the rectangular shape shown in fig. 6C, and the cross-sectional shape of the beam of the fixing member 10 and the force point member 20 may be circular, elliptical, semicircular, or other shapes, giving importance to formability, tactile sensation, and the like.

In the structure of the "cantilever simple beam (one-side concentrated load)" shown in fig. 6B, the bending moment MB generated around the fulcrum B is maximized.

Therefore, the present inventors evaluated the case where an external force (load P) is applied to the eyelash curler as an object by a simulation based on a conventional metallic eyelash curler, and selected a resin. The results are shown in fig. 8A below.

Fig. 7A and 7B are diagrams showing the ratio of the dimensions of the force point members. Specifically, fig. 7A is a diagram showing an example of the structure of the eyelash clip 1 of the present invention in which the ratio of the force in the force point member and the movable angle are taken into consideration, and fig. 7B is a diagram showing an example of the structure of the eyelash clip in which the ratio of the force in the force point member is taken into consideration.

When the above-described configuration of the cantilever simple beam (one-side concentrated load) is applied to the eyelash curler, the following aspects are generally known as to the force point member.

The eyelash curler 1 performs a curling operation by rotating the force point member 20 based on the principle of the 1 st lever, and applying the force point to the working member 30 with the hand-held portion 25 as a force point. Therefore, the distance between the force point and the action point is far from the fulcrum and the action point, so that eyelash curling action can be realized with lighter force. Therefore, it is known that the distance a < the distance B shown in fig. 7A and 7B is designed.

Further, regarding the dimensions of the distance a from the fulcrum B to the section on the tip side and the distance B from the fulcrum B to the section on the hand-held portion side in the force point member 20, considering the influence on the pinching pressure (pressure for pinching eyelashes) according to the principle of a lever, it is preferable that a: b is 1: 3 or more. That is, in the force point member 20, the distance from the fulcrum to the lower end of the force point member 20 is set to be 3 times or more the distance from the upper end to the fulcrum. In the present embodiment, in the force point member 20, the distance from the fulcrum hole 23, which is the fulcrum of engagement with the fixed member 10 by the pin shaft PS2, to the lower end of the force point member 20 is set to be 3 times or more the distance from the tip end hole 22, which is engagement with the acting member 30 by the pin shaft PS1, to the fulcrum hole 23.

However, if the size is preferably small in consideration of portability, and if only the ratio is set, a configuration in which the force point member and the fixing member are short as shown in fig. 7B, for example, is also included. If this is a configuration in which the force point member 20 is short, both the force point and the point of action are close to the fulcrum B, and therefore, a considerable force must be applied to the hand-held portion, and the movable angle at the fulcrum B must be set large.

Therefore, in the present embodiment, when it is recognized that the moving amount of the lower pressing portion 31 is secured to be 4mm or more as a value for balancing the feeling of use when the linear portion 251 (see fig. 6A) of the hand-held portion 25 (load point) is pressed from the finger hole side and the nipping pressure by curling only, the movable angle and the force application method are considered, and a is preferably 10mm or more. That is, in embodiment 1, it is appropriate that the distance from the upper end to the fulcrum B, that is, the distance from the front end hole 22 as the upper end to the fulcrum hole 23 located at the position of the fulcrum B, is set to 10mm or more in the force point member 20.

< selection of raw Material >

Fig. 8A is an evaluation result when a eyelash curler is formed and used using a plurality of raw materials, and fig. 8B is a graph showing an implementable range based on young's modulus and section modulus.

Specifically, fig. 8A shows the evaluation results when eyelash curlers having dimensions satisfying fig. 7A were formed and used for SUS304 (stainless steel), nylon 6/10, Polyamide (PA), fiber reinforced resin obtained by adding 55% of Glass Fiber (GF) to PA, polyether ether ketone (PEEK), polybutylene terephthalate (PBT), GF polyamide MXD6, and CF polyamide MXD6, which are materials having specific cross-sectional areas and cross-sectional coefficients.

Further, the strength of "PA + GF 55%" as a fiber-reinforced resin was evaluated by changing the sectional area and changing the sectional coefficient. When the sectional area is increased to increase the section modulus, the position on the graph of FIG. 8B is moved upward, and the evaluation may be made for the same materialThe price is also good. For example, in the case of a raw material of "PA + GF 55%" and having a section modulus of 4.5 (mm)³) In the case of (1), the strength was not satisfied and the sheet was judged as "X" in total, and the section modulus was 15.05 (mm)³) The case (2) and the section modulus are 36 (mm)³) In the case of (3), the strength is satisfied and the overall judgment is good.

In addition, regarding PBT, the cross-sectional area is increased (even if the cross-sectional coefficient is 32 (mm) similarly to "PA + GF 55%"³) And does not satisfy the strength evaluation, and the comprehensive judgment is not good.

In fig. 8B, the portion surrounded by four sides is the recommended range set by the simulation. The recommended range is that the Young modulus is 2500-40000 (N/mm)²) The material (c) is a material having a cross-sectional area coefficient of 5 to 40 (mm)³)。

In this range, the larger the young's modulus of the resin is, the smaller the section modulus can be. That is, even if the young's modulus of the resin is increased, the resin becomes thinner and closer to the metal product, and the strength can be secured. The section modulus is preferably 30 (mm) in consideration of user's operability³) Hereinafter, the section modulus is more preferably 20 (mm)³) The following.

Conversely, even if the resin has a small young's modulus and is brittle, if the section modulus is increased, the strength may be satisfied by simulation, but in consideration of the workability, the upper limit of the section modulus is set to 40 (mm) so as not to excessively increase the section area³)。

Therefore, in order to increase the strength of the material including the resin without increasing the cross-sectional area, the material constituting the eyelash curler is preferably formed of a fiber-reinforced resin in which Glass Fibers (GF) are blended with the resin. For example, if glass fibers are added to a resin having the same section modulus, the young's modulus becomes large, and the position on the graph of fig. 8B moves to the right.

In addition, CF (carbon fiber) may be mixed in addition to or instead of the glass fiber. For example, the fiber-reinforced resin is preferably blended with 30 mass% to 65 mass% of Glass Fiber (GF) or Carbon Fiber (CF).

By adding such GF or CF, rigidity can be enhanced with respect to deformation or fracture that the resin material itself (for example, PA) has. For example, a typical value for young's modulus is PA: 1200 to 2900MPa, the Young's modulus can be increased (for example, 4725MPa) by adding glass fiber. By this addition, the resultant stress in the structural analysis calculation can be controlled to about 30% with respect to the tensile strength indicating the resistance to deformation or fracture of the resin material itself (for example, PA). Therefore, with regard to the eyelash curler formed with the strengthening resin, the eyelash curling pressure of the metal eyelash curler can be approximated.

The resin mixed with the glass fiber is not particularly limited as long as it is a resin capable of incorporating the fiber. Examples of the resin include Polyamide (PA) (including various nylons), polyether ether ketone (PEEK), polyethylene terephthalate (PETG), glycol-modified Pet (PETG), polyphenylene sulfide (PPS), and polyamide MXD 6.

Here, the polyamide MXD6 is a crystalline thermoplastic polymer obtained from m-xylylenediamine (MXDA) and adipic acid. The GF polyamide MXD6 used herein was used as commercially available Reny (registered trademark) 1022H obtained by blending 50% of Glass Fiber (GF) into polyamide MXD 6. CF polyamide MXD 6a commercially available RenyC408 was used in which 40% Carbon Fiber (CF) was blended into polyamide MXD 6.

Further, among the resin monomers, those having a strong strength, for example, those of special polyamide MXD6, have 5000 (N/mm) even if they are not reinforced with glass fibers or carbon²) In the case of the Young's modulus, the modulus of section is 5 to 40 (mm) as long as the strength can be compensated by simulation³) Any thickness within the range of (1) can be used as the raw material of the eyelash clip of the present invention.

Further, even if not a special resin, as long as the Young's modulus of the resin is 2500 (N/mm)²) As described above, the eyelash curler can be formed as a single body without mixing glass fibers by setting the section modulus to be large within the above recommended range even for nylon 6/10, PEEK, PET, PETG, PPS, or the like. In this case, estimateThe Young's modulus of these resin monomers other than nylon 6/10 was 2500 (N/mm)²)～5000(N/mm²) On the left and right sides, therefore, if the section modulus is set to be slightly deviated from the lower end of the recommended range, for example, 10 (mm) at the time of molding³) As described above, a specific strength can be achieved even with a single resin, and the material for the eyelash curler of the present invention can be used.

Here, the

arm portions

14, 21, and 24, which are stress generating ranges of the fixing member 10 and the force point member 20 directly receiving the force of the user's finger, are preferably 2500N/mm which satisfies the recommended range³～40000N/mm³Young's modulus of (5 mm)³～40mm³Cross section coefficient of (a).

In addition, if the material of the

link portions

32A and 32B of the acting member 30 that indirectly receives a force to perform the elevating operation satisfies the young's modulus in the recommended range, the predetermined thickness of the cross-sectional coefficient may be smaller than the recommended range.

Eyelash clip for local use

In the above embodiment, the description was made on the premise of the global type eyelash curler which curls the entire eyelash close to the entire width of the eye, but the eyelash curler having the above-described material and the sectional shape of the present invention may be a local type eyelash curler.

Fig. 9 is a view showing a structure of a eyelash curler for partial use according to a modification of embodiment 1 of the present invention.

As shown in fig. 9, the eyelash curler 2 for partial use has a configuration similar to that of embodiment 1, and has a short width in the depth direction between the upper pressing portion 11P and the lower pressing portion 31P for pinching eyelash. Therefore, the interval between the

column parts

12C, 13C, 12D, 13D of the fixing member 10P and the interval between the

link parts

32C, 32D of the acting member 30P are also narrower than those in embodiment 1.

The force required to curl eyelash locally by pinching eyelash between the upper and lower

pressing portions

11P and 31P having a short width is smaller than the force required to curl eyelash with the width of the eye as a whole.

Therefore, as shown in fig. 9, the widths of the hand-held portion 16 and the hand-held portion 25 in the state where no force is applied are also set to be narrow so that the movable region of the rotation of the force point member 20P becomes small.

In this configuration, the eyelash can be curled by the same operation as that of the metal while securing the strength without increasing the size as compared with the general metal shape by using the resin having the young's modulus and the section modulus within the recommended ranges shown in fig. 8B.

Further, the local eyelash curler 2 shown in fig. 9 requires less force than the global type, and therefore, if the raw material satisfies the young's modulus in the above recommended range, the section modulus of the predetermined thickness may be smaller than the recommended range.

In the present configuration, since the joining portion 141J that joins the

inclined pillars

13C and 13D is also present at the upper end of the upper arm of the engaging portion in the fixing member 10P, even if hair or the like is present, it is possible to prevent the hair from being caught in the engaging portion between the force point member and the fixing member.

Further, in this configuration, since the straight portions and the curved portions of the hand-held

portions

16 and 25 overlap each other in the depth direction, the force is directly applied, and the operation and the force application to the eyelashes are facilitated.

< embodiment 2 >

Fig. 10 is an overall perspective view of an eyelash clip 3 according to embodiment 2 of the present invention. Fig. 11 is an overall perspective view of the eyelash clip 3 of the embodiment 2, which is viewed from a different angle from fig. 10. Fig. 12 is an exploded view of an eyelash clip 3 of embodiment 2.

In the present embodiment, the materials and the like are the same as those of the resin used in embodiment 1, but the hinge configurations and the like are different between the engagement (fulcrum) between the fixing member and the force point member and the engagement (action point) between the force point member and the action member.

As shown in fig. 12, in the present embodiment, a fitting groove 53, which is a fitting groove (recess) recessed from the lower side of the hinge, is formed in a portion of the force point member 50 slightly distant from the distal end portion.

As shown in fig. 12, in the fixing member 40, a support hole 45 formed in the arm 44 is provided with a fulcrum shaft 48 for fitting extending in the width direction (depth direction).

Then, in a state where the distal end side arm 51 of the force point member 50 is inserted into the support hole 45 of the fixing member 40 from the upper end side, the force point member 50 is press-fitted into the fixing member 40 from above to below, and the fitting groove 53 is engaged with the fulcrum shaft 48 in the support hole 45, whereby the force point member 50 and the fixing member 40 are connected.

The fulcrum shaft 48 of the fixing member 40 fitted in the fitting groove 53 of the force point member 50 serves as a 2 nd fulcrum (fulcrum B in fig. 6A), and the force point member 50 is rotatably connected to the fixing member 40.

In fig. 12, an example is shown in which the fulcrum shaft 48 extends globally in the width direction of the support hole 45, but the fulcrum shaft 48 that can be fitted into the fitting groove 53 may have a double-sided projection shape that protrudes from the inner side surface of the support hole 45 and is interrupted at the center.

Further, the arm 44 is also present above the support hole 45, and a junction 441J where the

inclined pillars

43A and 43B join is present above the support hole 15. Therefore, the fulcrum is not exposed, and even if hair, a napkin, a cosmetic cotton, or the like is present in the vicinity, it is possible to prevent the fulcrum from being caught in the engagement portion between the force point member 50 and the fixing member 40.

The operating member 60 is provided with a lower pressing portion 61 and

link portions

62A and 62B having one end connected to the lower pressing portion 61.

Engaging hooks (engaging portions) 611A and 611B having a substantially circular shape (hook shape) and partially missing are provided at both left and right ends of the lower pressing portion 61. In the present embodiment, the engagement hooks 611A and 611B are open rearward so as to facilitate attachment and detachment of the operating member 60 to and from the fixing member 40 during assembly. The engaging hooks (rear hooks) 611A, 611B are engaged with the pair of

parallel stays

42A, 42B, and the operating member 60 is slidably movable along the parallel stays 42A, 42B of the fixed member 40.

In this configuration, the other ends of the

link portions

62A and 62B are bent into a U shape and integrally formed, and a portion connecting the other ends of the

link portions

62A and 62B at the other ends is a cylindrical fitting cylinder 63. The fitting cylinder 63 is an engaging portion of the action member 60.

A fitting hook 52 having an upper side recessed is formed at the tip of the force point member 50.

Then, the force point member 50 is pushed upward from below with respect to the action member 60, and the fitting hook 52 engages with the fitting tube 63, thereby connecting the force point member 50 and the action member 60. In this way, the engagement hook 52 of the force point member 50 is engaged with the engagement tube 63 of the action member 60, and the action member 60 can move in conjunction with the action point of the force point member 50.

In this way, by connecting the fixing member 40 and the force point member 50 (the 2 nd fulcrum B in fig. 6A) and connecting the force point member 50 and the acting member 60 (the 1 st fulcrum a in fig. 6A) in a hook shape, it is possible to perform attachment, detachment, and the like without using a shaft portion through which the components penetrate for connection.

Therefore, the metal pins PS1 and PS2 for connecting the members to each other in embodiment 1 are not required to be used, and the engaging portions between the components can be completely metal-free.

Further, since the engagement state can be released by applying a force in a direction in which the hook is disengaged, the user can disassemble and assemble the hook with his or her hand. For example, in the case where the eyelash clip 3 is dirty, the disassembling and cleaning can be performed, whereby even the small unevenness up to the engaging portion can be cleaned, and then, the assembling can be performed, and therefore, even the minute portion can be kept clean.

In addition, even when a load is suddenly applied to the cosmetic bag or the luggage, the hook is disengaged, thereby preventing damage. At this time, since the engagement direction is opposite to that of the 1 st fulcrum a (see fig. 6A) and the 2 nd fulcrum B, when a strong force is applied in one direction, only the engagement state of either the 1 st fulcrum a or the 2 nd fulcrum B is disengaged, and therefore, when the engagement state is inadvertently disengaged, the recovery can be easily performed.

Further, a fitting hook 52 having a recessed upper side is provided at the tip of the tip-end arm 51 of the force point member 50, a fitting groove 53 having a recessed lower side is formed in a portion of the tip-end arm 51 closer to the tip than the handle 55, and one arm (2 nd arm) 51, 54 extends from the tip to the handle 55.

Therefore, in the eyelash curler 3 of the present embodiment, as in embodiment 1, the portions of the hand-held

portions

46 and 55 can be thickened to the same thickness as the extension portions (the

arm portions

44, 51, and 54) unlike the metal, and therefore, the holding property can be improved compared to the metal.

Here, in the present embodiment, in order to satisfy the ratio of fig. 6A, in the force point member 20, the distance from the fitting groove 53, which is the fulcrum of engagement with the fixing member 40, to the lower end of the force point member 50 is set to be 3 times or more the distance from the fitting hook 52, which is the upper end of engagement with the acting member 60, to the fitting groove 53.

In this embodiment, too, the distance from the engaging hook 52 at the upper end to the engaging groove 53 serving as the fulcrum is set to 10mm or more so as to ensure a movement amount of the lower pressing portion 31 of 4mm or more.

Referring to fig. 12, in the central arm 54 of the force point member 50, the portion closer to the hand-held portion 55 than the fitting groove 53 is, and the leading surface in the rotational direction is formed with irregularities in a corrugated shape.

The

corrugated irregularities

541 and 542 improve the conformability. In particular, in the case of self-makeup, the thumb is inserted into the finger hole of the hand-held portion 46 on the fixing member 40 side, and the other fingers are inserted into the finger hole of the hand-held portion 55 on the force point member 50 side. When the middle finger which is most likely to be forced is inserted into the finger hole of the hand-held portion 55 or when the ring finger is inserted into the finger hole, the force point member 50 is supported by the index finger or the middle finger due to the corrugated

uneven shapes

541 and 542, and the operation is stabilized.

Further, a finger hook portion (also referred to as a finger rest or finger placement portion) 56 is provided at the rear end of the hand-held portion 55. For example, when the user curls the eyelashes, the middle finger is inserted into the finger hole of the hand-held portion 55 on the force point member 50 side and the ring finger is inserted into the finger hook portion 56, the index finger is inserted into the finger hole of the hand-held portion 55 on the force point member 50 side and the middle finger is inserted into the finger hook portion 56, or the ring finger is inserted into the finger hole of the hand-held portion 55 on the force point member 50 side and the little finger is inserted into the finger hook portion 56.

In this way, even when any one of the fingers is inserted, the force point member 50 is supported by the corrugated

uneven shapes

541 and 542 and the finger hook portion 56 in addition to the finger inserted into the finger hole of the hand-held portion 55, and therefore, when curling eyelashes, the load on 1 finger when pressing is shared, and the operation is stable.

Collision points (hit points) 47 and 57 are provided at portions facing each other when the hand-held portion 46 of the fixing member 40 and the hand-held portion 55 of the force point member 50 are closed, respectively.

When the eyelashes are pressed, the front ends of the collision points 47, 57 of the hand-held

portions

46, 55 abut against each other, thereby preventing excessive rotation of the force point member 50 with respect to the fixed member 40.

Further, since the rotation is restricted by providing the collision points 47 and 57 at the inner edge portions of the hand-held

portions

46 and 55, for example, when the clamp rubber (not shown) is crushed and thinned due to repeated use, the clamping pressure of the pressing portion at the time of pressing may become insufficient. Therefore, when the collision points 47 and 57 are provided, it is appropriate to set the length and the like including the case where the jig rubber is crushed.

Fig. 13A and 13B are front and rear views of an eyelash clip 3 according to embodiment 2.

Referring to fig. 13A and 13B, assuming that the direction orthogonal to the direction in which the force point member 50 rotates is the depth direction, at least a part of the arm (1 st arm portion) 44 in the fixing member 40 is equal to the width (x2) of the hand-held portion 46 in the depth direction. In the force point member 50, at least a part of the 2

nd arm portions

51 and 54 is equal to the width (x2) of the hand-held portion 55 in the depth direction.

In the present embodiment, since the

corrugated irregularities

541 and 542 and the collision points 47 and 57 are provided, the thickness (height) and width in the rotation direction of the beam of the

arm portions

44, 51 and 54 or the hand-held

portions

46 and 55 are not uniform.

However, in the present embodiment, the center lines CL of the

arms

44, 51, 54 in the depth direction (the direction of the width x2) also extend in the same direction as the center lines CL of the hand-held

portions

46, 55 and overlap each other. Therefore, in operation, the force of pinching from the fingers is directly applied from the hand-held

portions

46, 55 via the

arm portions

44, 51, 54 extending on the same center line, and therefore, the force of pinching the eyelashes is easily transmitted.

Further, referring to fig. 10, 11, and 12, in the fixing member 40, the hand-held portion 46 is configured to form a finger hole by a straight portion 461 and a bent portion 462, the straight portion 461 branches from the lower end of the 1 arm 44 in the thickness direction at a branch point BP1 and linearly extends from the arm 44, and the bent portion 462 protrudes from the lower end of the straight portion 461 in the 1 st thickness direction and is folded back and returned to the branch point BP 1.

Further, in the force point member 50, the hand-held portion 55 is configured to form a finger hole by a straight portion 551 and a curved portion 552, the straight portion 551 is branched from the lower ends of 1

arm portion

51, 54 at a branch point in the thickness direction and linearly extends from the central arm 54 which is a part of the

arm portion

51, 54, and the curved portion 552 protrudes from the lower end of the straight portion 551 in the 2 nd thickness direction which is the opposite direction to the 1 st thickness direction and is folded back and returns to the branch point.

In the present embodiment, the finger holes formed in the hand-held

portions

46 and 55 are substantially semicircular.

Referring to fig. 10 to 13B, the linear portion 461 and the curved portion 462 of the hand-held portion 46 of the fixing member 40 overlap the linear portion 551 and the curved portion 552 of the hand-held portion 55 of the force point member 50 in the depth direction.

portions

46 and 55 overlap each other in the depth direction, the force is directly applied, and the operation and the force application to the eyelashes are facilitated.

In the present embodiment, by using a resin having a section modulus and young's modulus within the applicable range shown in fig. 8B, it is possible to achieve the same stress by the bending and crimping pressure as that of metal. Therefore, the holding property of the hand-held portion can be improved, the strength can be ensured without increasing the size of the hand-held portion compared with the shape made of metal, and the eyelash curling effect equivalent to that made of metal can be exerted by the same operation as that made of metal.

In embodiment 2, the example in which the corrugated

uneven shapes

541 and 542 and the collision points 47 and 57 are provided is used in the structure in which the operating point (fulcrum a) and the fulcrum (fulcrum B) are engaged with each other using the hook and groove of the component, but the corrugated shape and the collision point may be applied to embodiment 1 in which they are engaged with each other by the pin shaft.

Alternatively, in the structure of embodiment 2 in which the components are engaged with each other using hooks and grooves, the

corrugated irregularities

541 and 542 and the collision points 47 and 57 may not be provided.

In the configuration in which the operating point and the fulcrum are engaged with each other using the hook and the groove of the constituent elements, the beams of the

arm portions

14, 21, 24 and the hand-held

portions

16, 25 may be configured to have the same thickness except for the width as in embodiment 1.

In embodiment 1, a hand-held portion having finger holes formed in a substantially tear-drop shape is described, and in embodiment 2, a hand-held portion having finger holes formed in a substantially semicircular shape is described, but the shapes of the finger holes may be reversed, or the finger holes may be circular, elliptical, or the like. Further, the shape may be interrupted at the periphery of the branch point of the bending portion in the hand-held portion.

Although the preferred embodiments of the present invention have been described above in detail, the present invention is not limited to the specific embodiments described above, and various modifications and changes can be made within the scope of the embodiments of the present invention described in the claims.

The application claims that all the contents of Japanese patent application No. 2018 and 174220 are incorporated into the application based on the priority of Japanese patent application No. 2018 and 174220 filed on 9/18.2018 to the office.

Description of the symbols

1. 3 eyelash curler

Eyelash curler for local use

10 fixing member

11 upper side pressing part

12A, 12B parallel strut (strut part)

13A, 13B inclined strut (strut part)

14 arm (1 st arm)

141J confluence part

15 support hole part

151A, 151B small holes

16 hand-held part

20 force point component

21 front end side arm (arm, 2 nd arm)

22 front end hole (front end snap hole)

23 fulcrum hole

24 center arm (arm, 2 nd arm)

25 hand-held part

30 acting component

31 lower pressing part (abutting component, upper clamping piece)

311A, 311B hook (hook at two ends, engaging part)

32A, 32B link part

33 connecting part

331A, 331A aperture

400 fixing member

41 upper pressurizing part

42A, 42B parallel strut (strut part)

43A, 43B oblique brace (brace part)

44 arm (1 st arm)

441J confluence part

45 support hole part

46 hand-held part

47 collision point

48 fulcrum shaft

50 force point component

51 front end side arm (arm, 2 nd arm)

Hook for 52 fitting (connecting part)

53 fitting groove (fitting part, connecting part)

54 center arm (arm, 2 nd arm)

541. 542 wave concave-convex shape

55 hand-held part

56 finger hook

57 point of impact

60 acting component

61 lower pressurizing part (contact component, upper clamp pressing piece)

611A, 611B hook (hook, rear hook)

62A, 62B link part

63 connection part

A1 st fulcrum

B2 nd fulcrum

Point of C load

PS1 Pin

PS2 pin.

Claims

1. An eyelash clip, having:

a fixing member integrally formed with an upper pressing portion;

an action member having a lower pressing portion movable up and down with respect to the upper pressing portion; and

a force point member that moves the acting member up and down by rotating with a portion engaged with the fixed member as a fulcrum,

the fixing member, the acting member, and the force point member are each integrally formed of resin.

2. The eyelash clip of claim 1, wherein,

the fixing member is integrally formed with the upper pressing portion, a 1 st hand-held portion on which a user's finger is placed, a 1 st arm portion extending in the up-down direction, and a pair of support columns branched into 2 from the 1 st arm portion and supporting both end portions of the upper pressing portion,

the force point component is integrally formed with a No. 2 handheld part which is leaned by the fingers of the user and an extended No. 2 arm part,

a support hole portion through which the force point member is inserted is formed in the 1 st arm portion.

3. The eyelash clip of claim 2, wherein,

when the direction orthogonal to the direction in which the force point member rotates is set as the depth direction,

at least a part of the 1 st arm part is equal to the width of the 1 st hand-held part in the depth direction,

at least a part of the 2 nd arm part is equal to a width of the 2 nd hand grip part in the depth direction.

4. The eyelash clip of claim 3, wherein,

when the direction orthogonal to the depth direction in the cross section of the fixing member and the force point member is taken as the thickness direction,

in the fixing member, the 1 st hand-held portion is formed of a ring including a straight portion that branches off from the lower ends of the 1 st arm portions in the thickness direction at a branch point and extends linearly from the 1 st arm portion, and a bent portion that protrudes from the lower ends of the straight portions in the 1 st thickness direction and is folded back and returned to the branch point,

in the force point member, the 2 nd hand-held portion is formed of a ring including a straight portion that branches from the lower ends of the 1 nd arm portions in the thickness direction at a branch point and extends linearly from the 2 nd arm portion, and a bent portion that protrudes from the lower ends of the straight portions in the 2 nd thickness direction that is the opposite direction to the 1 st thickness direction and is folded back and returns to the branch point,

the straight portion and the curved portion of the 1 st hand-held portion overlap with the straight portion and the curved portion of the 2 nd hand-held portion in the depth direction.

5. The eyelash clip of any one of claims 2 to 4, wherein,

a fulcrum hole penetrating in a depth direction orthogonal to a direction in which the force point member rotates is formed in a portion of the force point member that becomes the fulcrum,

small holes are formed on both side walls of the support hole of the 1 st arm part of the fixing member,

the 2 nd arm portion of the force point member is locked by a pin serving as a fulcrum of the rotation of the fixing member so as to pass through the fulcrum hole and the small holes of the both side walls in a state of being inserted into the support hole portion of the fixing member from an upper end portion.

6. The eyelash clip of any one of claims 2 to 5, wherein,

the acting component is integrally formed with the lower pressurizing part, a connecting rod part with the upper end connected with the lower pressurizing part and a connecting part connected with the lower end of the connecting rod part,

a tip hole penetrating in a depth direction orthogonal to a direction in which the force point member rotates is formed at an upper end portion of the force point member,

the connecting part is recessed relative to the lower end in a U shape, small holes are formed on two side surfaces of the recessed part,

an upper end of the 2 nd arm portion of the force point member is inserted into the recess of the connecting portion and is locked by a pin shaft so as to pass through a front end hole and small holes of the both side surfaces of the connecting portion,

the acting member is connected to be movable in conjunction with the force point member.

7. The eyelash clip of claim 6, wherein,

in the acting member, both left and right ends of the lower pressing portion are hook-shaped both-end hooks having both sides opened in the depth direction,

the operating member is slidable relative to the fixed member by engaging the both end hooks with the pair of support columns.

8. The eyelash clip of any one of claims 2 to 4, wherein,

the force point member is formed with a recess for fitting which is recessed on the lower side,

in the fixing member, a fitting protrusion is provided inside the support hole portion,

the force point member is rotatably connected to the fixed member with a fitting portion of the force point member, as a fulcrum, into which the fitting recess of the force point member is fitted and the fitting projection of the fixed member are fitted, and thereby, a force generated by the rotation is transmitted to the acting member so as to act in an upward direction.

9. The eyelash clip of claim 8, wherein,

the acting component is integrally formed with the lower pressurizing part and a connecting rod part with one end connected with the lower pressurizing part,

an engaging hook having an upper side recessed is formed at an upper end of the force point member,

a fitting cylinder is provided at the other end of the link portion of the action member,

the engagement hook of the force point member is engaged with the engagement tube of the acting member, whereby the acting member is connected so as to be movable in conjunction with the force point member.

10. The eyelash clip of claim 9, wherein,

in the acting member, both left and right ends of the lower pressing portion are formed as hook-shaped rear hooks that are opened at a rear side,

the rear hook is fitted to the pair of support columns, so that the operating member can slide relative to the fixed member.

11. The eyelash clip of any one of claims 2 to 10, wherein,

the Young modulus of the resin is 2500N/mm³～40000N/mm³The 1 st arm portion of the fixing member and the 2 nd arm portion of the force point member are configured to have a section modulus of 5mm³～40mm³。

12. The eyelash clip of claim 11, wherein,

the resin is a fiber-reinforced resin formed by blending Glass Fiber (GF) with any one of Polyamide (PA), polyether ether ketone (PEEK), polyethylene terephthalate (PET), glycol-modified PET (petg), polyphenylene sulfide (PPS), and polyamide MXD 6.

13. The eyelash clip of claim 12, wherein,

the fiber-reinforced resin is formed by blending 30 to 65 mass% of the Glass Fiber (GF) in the resin.

14. The eyelash clip of claim 11, wherein,

the resin is any one of nylon 6/10, polyether ether ketone (PEEK), polyethylene terephthalate (PET), glycol modified PET (PETG), polyphenylene sulfide (PPS) and polyamide MXD6,

the 1 st arm part of the fixing member and the 2 nd arm part of the force point member have a section modulus of 10mm³The above.