eyelash curler

Abstract

To provide an eyelash curler made of resin, which is not larger than a general shape made of metal, secures strength, and can be operated as similar to that of an eyelash curler made of metal.SOLUTION: A fixation member, an action member, and a point-of-effort member are integrally formed of resin. The fixation member includes: an upper press part; a first arm part constituted of one piece; a first handle branched from the first arm part and having a finger hole; a hole frame part having a support hole part; and a pair of poles branched into two from an upper end of the hole frame part and supporting both ends of the upper press part. The upper press part, the first arm part, the first handle, the hole frame part, and the pair of poles are integrally formed. The point-of-effort member includes: a second arm part constituted of one piece; a distal end having a width smaller in a depth direction than a width of the second arm part and inserted to the hole frame part; and a second handle branched from the second arm part and having a finger hole. The second arm part, the distal end, and the second handle are integrally formed. The first arm part is vertically longer than the support hole part in the fixation member.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an eyelash curler. [Background technology]

[0002] Generally, eyelash curlers (eyelash curlers, eyelash curlers) are constructed using the principle of leverage and are made of metal such as stainless steel and are operated using two fingers.

[0003] However, with conventional metal eyelash curlers that use the principle of leverage, the grip part is made of a single metal rod twisted into a ring shape, while the other part is made of two metal rods extending side by side, so the metal cross section at the grip part is thin, making it difficult to hold.In addition, people with metal allergies cannot use them.

[0004] Therefore, in order to prevent metal allergies and to make the product gentle on the skin, eyelash curlers have been proposed in which the parts corresponding to the gripping part that comes into contact with the fingers and the contact surface that comes into contact with the eyelids are partially covered with resin over the metal, or in which some parts are made of resin (for example, Patent Document 1 and Patent Document 2).

[0005] Furthermore, there is an eyelash curler that does not use metal on the outside, but is made entirely of resin on the outside, and has a spring (for example, Patent Document 3). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Utility Model Application Publication No. 59-40002 [Patent Document 2] Japanese Patent Publication No. 2007-68695 [Patent Document 3] Japanese Patent Publication No. 2004-57581 Summary of the Invention [Problem to be solved by the invention]

[0007] However, as in Patent Documents 1 and 2, when a resin part is attached to a part of a metal eyelash curler or when a part is replaced with resin, the number of manufacturing steps required for assembly increases compared to eyelash curlers made of metal alone, resulting in reduced productivity.

[0008] Furthermore, if a resin eyelash curler were to be formed in the same shape as a typical metal eyelash curler, it would not be strong enough to clamp the curler, so the eyelash curler shown in Patent Document 3, which has an entire resin exterior, is equipped with a spring for clamping. However, the addition of a spring results in a complex and large structure. Furthermore, this structure does not resemble the appearance of a typical metal eyelash curler, which uses a lever, and the operation method is different.

[0009] In view of the above circumstances, the present invention aims to provide a resin eyelash curler that is not larger than a typical metal eyelash curler, has sufficient strength, and can be operated in the same way as a metal eyelash curler. [Means for solving the problem]

[0010] In order to solve the above problem, one aspect of the present invention is to a fixing member integrally formed with the upper press portion; An operating member that allows the lower press unit to move up and down relative to the upper press unit; a force application member that moves the acting member up and down by rotating around a portion that engages with the fixed member as a fulcrum, the fixing member, the acting member, and the force application member are each integrally formed from resin, The fixing member is integrally formed with the upper press section, a first handle on which a user places their fingers, a first arm section extending in the vertical direction, a hole frame section positioned above the first arm section and having a support hole section formed therein, and a pair of support posts that branch into two from a joining section at the upper end of the hole frame section and support both ends of the upper press section, the force application member is integrally formed with a second handle on which the user places his / her fingers, an extending second arm portion, and a tip portion that is positioned above the second arm portion and is inserted into the hole frame portion, When a direction perpendicular to the direction in which the force application member rotates is defined as a depth direction, and a direction perpendicular to the depth direction in a cross section of the fixing member and the force application member is defined as a thickness direction, In the fixing member, the first handle is ring-shaped, branching from a lower end of the first arm portion toward one side in the thickness direction, expanding, and folding back to form a finger hole; In the force application member, the second handle is ring-shaped and branches from a lower end of the second arm portion toward the other side in the thickness direction, bulges out, and is folded back to form a finger hole, the width in the depth direction and the thickness in the thickness direction of the first arm portion, the first handle, the second arm portion, and the second handle are equal, the first arm portion of the fixing member is composed of one piece, and the second arm portion of the force application member is composed of one piece, In the force application member, the tip end portion is narrower in width in the depth direction than the second handle and the second arm portion, In the fixing member, the first arm portion is longer in the vertical direction than the support hole portion. To provide an eyelash curler. Furthermore, another aspect of the present invention is a fixing member integrally formed with the upper press portion; An operating member that allows the lower press unit to move up and down relative to the upper press unit; a force application member that moves the acting member up and down by rotating around a portion that engages with the fixed member as a fulcrum, the fixing member, the acting member, and the force application member are each integrally formed from resin, The fixing member is integrally formed with the upper press section, a first handle on which a user places their fingers, a first arm section extending in the vertical direction, a hole frame section positioned above the first arm section and having a support hole section formed therein, and a pair of support posts that branch into two from a joining section at the upper end of the hole frame section and support both ends of the upper press section, the force application member is integrally formed with a second handle on which the user places his / her fingers, an extending second arm portion, and a tip portion that is positioned above the second arm portion and is inserted into the hole frame portion, When a direction perpendicular to the direction in which the force application member rotates is defined as a depth direction, and a direction perpendicular to the depth direction in a cross section of the fixing member and the force application member is defined as a thickness direction, In the fixing member, the first handle is ring-shaped, branching from a lower end of the first arm portion toward one side in the thickness direction, expanding, and folding back to form a finger hole; In the force application member, the second handle is ring-shaped and branches from a lower end of the second arm portion toward the other side in the thickness direction, bulges out, and is folded back to form a finger hole, The upper surface of the second arm portion is formed with a wavy uneven shape, In the force application member, the tip end portion is narrower in width in the depth direction than the second handle and the second arm portion, The first arm portion, the first handle, the second arm portion, and the second handle have the same width in the depth direction, the first arm portion of the fixing member is composed of one piece, and the second arm portion of the force application member is composed of one piece, In the fixing member, the first arm portion is longer in the vertical direction than the support hole portion. To provide an eyelash curler. [Effects of the Invention]

[0011] According to one aspect, a resin eyelash curler can be operated in the same manner as a metal eyelash curler while ensuring strength without being larger than a typical metal eyelash curler. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is an overall perspective view (part 1) of an eyelash curler according to a first embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a second overall perspective view of the eyelash curler according to the first embodiment. [Figure 3] FIG. 2 is an exploded view of the eyelash curler according to the first embodiment. [Figure 4A] FIG. 1 is a front view of an eyelash curler according to a first embodiment. [Figure 4B] FIG. 2 is a rear view of the eyelash curler according to the first embodiment. [Figure 5A] FIG. 1 is a front perspective view of a metal eyelash curler according to a comparative example. [Figure 5B] FIG. 10 is a rear perspective view of a metal eyelash curler of a comparative example. [Figure 6A] FIG. 1 is a diagram illustrating the fulcrum and load point of an eyelash curler. [Figure 6B] A diagram explaining the support points and load points when approximating a simple spring beam structure. [Figure 6C] FIG. 2 is a cross-sectional view of a beam portion of the eyelash curler. [Figure 7A] 10A and 10B are diagrams showing examples of the configuration of the eyelash curler of the present invention, taking into consideration the force ratio and movable angle at the force application members. [Figure 7B] FIG. 10 is a diagram showing an example of the configuration of an eyelash curler in which the force ratio at the force application members is taken into consideration. [Figure 8A] This is a table showing the evaluation results when eyelash curlers were formed using multiple materials. [Figure 8B] FIG. 1 shows the feasible range of resins for eyelash curlers based on Young's modulus and section modulus. [Figure 9] FIG. 2 is an overall perspective view of a partial eyelash curler according to a modified example of the first embodiment of the present invention. [Figure 10] FIG. 1 is a general perspective view (part 1) of an eyelash curler according to a second embodiment of the present invention. [Figure 11] FIG. 10 is a second overall perspective view of the eyelash curler according to the second embodiment. [Figure 12] FIG. 10 is an exploded view of the eyelash curler according to the second embodiment. [Figure 13A] FIG. 10 is a front view of the eyelash curler according to the second embodiment. [Figure 13B] FIG. 10 is a rear view of the eyelash curler according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following describes embodiments of the present invention with reference to the accompanying drawings. In the following drawings, the same components are designated by the same reference numerals, and redundant explanations may be omitted.

[0014] The present invention relates to a resin eyelash curler (an eyelash curler for the entire eyelash area, an eyelash curler for a specific area).

[0015] First Embodiment Fig. 1 is an overall perspective view of an eyelash curler according to a first embodiment of the present invention. Fig. 2 is an overall perspective view of the eyelash curler according to the first embodiment, seen from a different direction than that shown in Fig. 1. Fig. 3 is an exploded view of the eyelash curler shown in Fig. 1.

[0016] The eyelash curler 1 of this embodiment has a similar structure to a typical metallic eyelash curler, and each component is integrally formed from a resin, which will be described later.

[0017] The eyelash curler 1 has a fixing member 10, a force application member 20, and an action member 30.

[0018] The fixing member (also referred to as a support part) 10 has an upper press part 11, parallel struts 12A and 12B, inclined struts 13A and 13B, an arm 14, and a handle 16. A support hole part 15 is formed in the arm 14, which serves as a handle. The arm 14 also exists above the support hole part 15, and above the support hole part 15 is a junction part 141J where the arm 14 and the inclined struts 13A and 13B join together.

[0019] The upper pressing portion (also referred to as a contact member, upper clip, or frame) 11 is a portion that comes into contact with the upper surface of the upper eyelashes when curling the upper eyelashes.

[0020] The parallel columns 12A, 12B are integrally connected to both widthwise ends of the upper press section 11 and extend vertically. The upper ends of the inclined columns 13A, 13B are connected to the lower ends of the parallel columns 12A, 12B, with the lower gap narrowing in a V-shape, and the lower ends are connected to the arm 14. The parallel columns 12A, 12B and the inclined columns 13A, 13B function as support sections.

[0021] Arm 14 (also referred to as first arm, handle, or shaft) is an extension that connects inclined supports 13A, 13B and handle 16. In this example, arm 14 extends in the same direction as straight portion 161 (see FIG. 3), which is the inner portion of handle 16.

[0022] The handle (handle, finger ring, grip, or gripping portion) 16 is ring-shaped with finger holes for inserting fingers. When a user curls their upper eyelashes themselves, the user's thumb is often inserted into the finger holes of the handle 16. Alternatively, when a makeup artist or other professional curls their upper eyelashes or when the user curls their lower eyelashes themselves, the practitioner's index finger, middle finger, or ring finger is often inserted into the finger holes of the handle 16.

[0023] In the present invention, the fixing member 10 is integrally formed with a handle 16, an arm 14 extending in the vertical direction, a pair of support pillars 12A, 13A, 12B, 13B branching off from the arm 14 and supporting both ends of the upper press section 11, and the upper press section 11.

[0024] 3, small holes 151A and 151B are formed in the width direction on both side surfaces (side walls) that form support hole 15 formed in arm 14. In this configuration, the side surfaces that define support hole 15 are wider than the rest of arm 14, but they may also be the same width as the rest of arm 14.

[0025] The force application member 20 has arm portions 21 and 24 and a handle 25. The distal arm 21 is formed with a distal hole (tip engaging hole) 22 which is a first engaging hole, and a fulcrum hole (fulcrum engaging hole) 23 which is a second engaging hole.

[0026] The arm portions (also called second arm portions, handle portions, or shaft portions) 21, 24 have a tip-side arm 21 that extends from the tip portion beyond the connecting portion, and a central arm 24 that extends in a different direction from the tip-side arm 21 and in the same direction as the straight portion 251 (see Figure 3), which is the inner part of the handle 25.

[0027] The tip arm 21 of the force application member 20 is inserted into the support hole portion 15 of the fixing member 10 from the tip end opposite the handle 25, and is engaged by the pin shaft PS2 so as to pass through the fulcrum hole 23 and the small holes 151A, 151B in a state where the fulcrum hole 23 and the small holes 151A, 151B on the side of the support hole portion 15 are aligned.

[0028] This engagement allows the force application member 20 to rotate relative to the fixed member 10, with the pin shaft PS2 as the rotation axis. That is, using the principle of a first class lever, the force application member 20 rotates with the handle 25 as the force point, the engagement portion with the fixed member 10 as the fulcrum, and the upper end portion as the point of action.

[0029] When the force application member 20 is rotated relative to the fixed member 10, the arm 14 of the fixed member 10 and the arm portions 21, 24 of the force application member 20 shown in Figure 3 are within the stress generation range. The stress generation range includes the maximum stress generation point where the stress is greatest during use. Note that the stress generation range refers to the area where a relatively large amount of stress is generated, and stress is also generated in other areas.

[0030] The handle (handle, finger ring, grip, or gripping portion) 25 is ring-shaped and has finger holes for inserting fingers. For example, when a user curls their upper eyelashes, the user's index finger, middle finger, or ring finger is often inserted into the finger holes of the handle 25. Alternatively, when a practitioner curls their eyelashes or when the practitioner curls their lower eyelashes, the practitioner's thumb is often inserted into the handle 25.

[0031] The force application member 20 is formed integrally with the handle 25 and the extending arm portions 21 and 24 , and in the force application member 20 , the arm portions 21 and 24 are formed as a single piece and have the same thickness as the handle 25 .

[0032] As described above, the distal arm 21 is provided with the fulcrum hole 23 which serves as the fulcrum and the distal hole 22 which serves as the point of application, and the central arm 24 extends at an angle relative to the distal arm 21. The central arm 24 also extends in the same direction as the linear portion 251 (see FIG. 3 ), which is the inner portion of the handle 25. Due to the inclination of the arm portions 21, 24 of the force application member 20, the linear portion 251 of the handle 25 which extends continuously from the arm 24 becomes approximately parallel to the linear portion 161 of the handle 16 which extends continuously from the arm 14, so that force can be applied without waste.

[0033] Also, referring to Figures 1, 2, and 3, in the fixing member 10, the handle 16 is configured to form a finger hole by a straight portion 161 that branches off from the lower end of one arm 14 in the thickness direction y (see Figure 6C) at a branch point BP1 and extends linearly from the arm 14, and a curved portion 162 that bulges out from the lower end of the straight portion 161 in the first thickness direction, folds back, and returns to the branch point BP.

[0034] Furthermore, in the force application member 20, the handle 25 is configured to form a finger hole by a straight portion 251 that branches off at branch point BP2 in the thickness direction from the lower end of central arm 24 of the single arm portions 21, 24 and extends linearly from central arm 24, which is part of the arm portions, and a curved portion 252 that bulges out from the lower end of straight portion 251 in a second thickness direction opposite to the first thickness direction and folds back to return to branch point BP2.

[0035] In this embodiment, the finger holes formed in the handles 16 and 25 are teardrop-shaped.

[0036] The acting member (interlocking portion, lifting portion) 30 has a lower pressing portion 31, link portions 32A and 32B, and a connecting portion 33.

[0037] When curling the upper eyelashes, the eyelash curler 1 is held in the state shown in Figure 1, and the lower pressing part (lower contact member, clamping piece) 31 presses up from below the lower surface of the eyelashes clamped between it and the upper pressing part 11, curling the upper eyelashes upward.

[0038] When curling the lower eyelashes, the eyelash curler 1 is held upside down from that shown in FIG. 1, and the lower pressing part 31 presses down from above the upper surface of the eyelashes sandwiched between it and the upper pressing part 11, thereby curling the lower eyelashes downward.

[0039] The link sections (lifting columns) 32A and 32B have upper ends connected to the lower press section 31, are inclined in a substantially V-shape, and have lower ends connected to the connecting section 33.

[0040] In this embodiment, a junction 332J where the link portions 32A and 32B join together before the engaging groove is provided on the upper end side of the connecting portion 33. The junction 332J reinforces the thinnest link portions 32A and 32B in the eyelash curler 1.

[0041] The connecting portion 33 has a three-dimensional engaging groove shape with a U-shaped tip. Small holes 331A and 331B are formed on both side surfaces that form the connecting portion 33, penetrating in the width direction.

[0042] The tip of the tip-side arm 21 of the force application member 20 is inserted into the inside of the U-shape of the connecting portion 33 of the acting member 30, and is engaged by the pin shaft PS1 so as to pass through the tip hole 22 and the small holes 331A, 331B with the tip hole 22 aligned with the small holes 331A, 331B on the side of the connecting portion 33.

[0043] Due to this engagement, when the force application member 20 rotates around the pin shaft PS1 as a rotation axis, the action member 30 can move up and down together in conjunction with the force application member 20.

[0044] Furthermore, engaging hooks (engaging portions, both end hooks) 311A, 311B, each having a substantially circular shape (hook shape) with a portion missing, are provided on both the left and right ends of the lower pressing part 31. The engaging hooks 311A, 311B engage with the pair of parallel support posts 12A, 12B, allowing the lower pressing part 31 to slide along the parallel support posts 12A, 12B of the fixing member 10.

[0045] FIG. 3 shows an example in which the engagement hooks 311A, 311B are open to the side (depth direction), but in this embodiment, the engagement hooks 311A, 311B may be open to the rear (second thickness direction) when viewed from the front.

[0046] A clipper rubber CR (see FIG. 2), which is an elastic member, is sandwiched on the upper surface of the lower press part 31. Therefore, a groove 312G for sandwiching the clipper rubber CR is formed on the upper surface of the lower press part 31.

[0047] With this configuration, when the handle 25 on one end side is moved closer to the handle 16, the force application member 20 rotates around the pin axis PS2, which is the connecting part between the fulcrum hole 23 and the small holes 151A, 151B, as a fulcrum (fulcrum B), and the tip hole 22, which connects to the connecting part 33 with the acting member 30 on the other end side, moves in the direction opposite to the movement of the handle 25, and the acting member 30 is pushed up together with the pin axis PS1.

[0048] As a result, by moving the handle 25, the acting member 30 raises and lowers the lower pressing section 31 while the engaging hooks 311A, 311B slide along the parallel supports 12A, 12B of the fixing member 10 in accordance with the raising and lowering of the tip hole 22.

[0049] Furthermore, the force application member 20 rotates around a part of the fixed member 10 as a fulcrum, thereby moving the acting member 30 up and down.

[0050] The lower press part 31 of the working member 30 approaches the upper press part 11 of the fixing member 10, and pressure is applied (clamped) to the eyelashes between the clipper rubber CR and the upper press part 11, thereby giving the eyelashes a curl.

[0051] FIG. 4A is a front view of the eyelash curler 1 of the first embodiment, and FIG. 4B is a rear view of the eyelash curler 1 of the first embodiment.

[0052] 4A and 4B, when the direction perpendicular to the direction in which the force application member 20 rotates is defined as the depth direction, in the fixed member 10, the width (x1) in the depth direction of at least a part of the arm (first arm portion) 14 is equal to that of the first handle 16. Furthermore, in the force application member 20, the width (x1) in the depth direction of the central arm 24, which is at least a part of the second arm portions 21, 24, is equal to that of the second handle 25.

[0053] 1 to 4B, straight portion 161 and curved portion 162 of first handle 16 and straight portion 251 and curved portion 252 of second handle 25 overlap in the depth direction.

[0054] Here, "equal width" and "overlapping" do not only mean completely equal or completely overlapping, but also include partial overlapping with a certain degree of error. For example, the straight portions 251, 161 and the curved portions 252, 162 may have different widths, in which case the thicker portion partially overlaps the thinner portion in the depth direction.

[0055] Also, referring to Figures 1 to 4B, in this embodiment, arm 14 extends as a single piece from the branching point to handle 16, and the width (depth) and height (thickness) of handle 16 are the same as the width and thickness of arm 14 in the depth direction.

[0056] With this configuration, during operation, the pinching force from the fingers is applied directly from the handles 16, 25, which are of the same thickness and overlap in the depth direction, via the arm parts 14, 21, 24, which are of the same width and extend in the same direction, so the pinching force for the eyelashes is easily transmitted.

[0057] In the eyelash curler 1, the fixing member 10, the force application member 20, and the action member 30 are each integrally formed from resin, and the resin that constitutes them will be described in detail later.

[0058] In this embodiment, the connecting portion between the force application member 20 and the acting member 30 and the connecting portion between the fixed member 10 and the force application member 20 are rotatably fixed by pin shafts (PS1, PS2) which are connecting shafts for connecting the respective members, but the material constituting the pin shafts PS1, PS1 may be any material such as resin or metal.

[0059] Furthermore, if the pin shafts PS1 and PS2 are made of resin, all of the components that make up the eyelash curler 1 will be made of resin, making it possible to achieve a completely metal-free product.

[0060] <Comparative Example> Figures 5A and 5B are diagrams of a comparative metal eyelash curler. The eyelash curler 9 shown in Figures 5A and 5B is an example of a common metal eyelash curler. Figure 5A is a front perspective view of the comparative metal eyelash curler 9, and Figure 5B is a rear perspective view of the comparative metal eyelash curler 9.

[0061] The structural differences between the metallic eyelash curler 9 and the eyelash curler 1 of the present invention shown in FIG. 1 will be described below.

[0062] In the metal eyelash curler 9 shown in Figures 5A and 5B, the fixing member 70 is formed by separately forming an upper press part (metal frame) 11 and a thin metal rod, and then bonding them together. The force application member 80 is formed by deforming a single thin metal rod. The acting member 90 is formed by separately forming a lower press part (metal frame) 91 and a thin metal rod, and then bonding them together.

[0063] Specifically, in the fixing member 70, a metal rod is processed so that the lower end is twisted into a ring shape to form the handle 76, and long vertical slits are formed in the opposing portions of the upper ends of the metal rod corresponding to the parallel supports 72A and 72B. At this time, the lower end is twisted into a ring shape, and in the arm 74, which is an extension from the support portions 72A, 73A, 72B, and 73B to just before the handle 76, two thin metal rods (741 and 742) are arranged side by side in contact or close proximity. Then, a metal frame is inserted into the slits on the inner surfaces of the tips of the parallel supports 72A and 72B, which are metal rods, and welded to connect the upper press section 71 and the parallel supports 72A and 72B.

[0064] The force application member 80 has a handle 85 formed by twisting into a ring shape at the bottom end, and at the arm portions 81, 84 that extend from the handle 85 to the tip, two thin metal rods (811, 812) and (841, 842) are lined up in contact with each other.

[0065] In the acting member 90, the end of a metal rod made by bending a single piece of metal into an approximately V-shape is welded to the lower press part 91, which is a metal frame, thereby connecting the link parts 92A, 92B and the lower press part 91.

[0066] Furthermore, when the apexes of the approximately V-shapes of the link portions 92A, 92B of the acting member 90 are connected to the force application member 80, a thin metal rod is inserted into the tip engagement hole 82 of the force application member 80 and bent to form the shape of the link portions 92A, 92B, and the upper ends of the link portions 92A, 92B are welded to the lower press member 91. In this way, the forming of the acting member 90 and the connection between the acting member 90 and the force application member 80 are performed simultaneously, so the acting member 90 and the force application member 80 cannot be detached after manufacture.

[0067] In this configuration, the handles 76, 85 forming a ring in the fixing member 70 and the force application member 80 are as thin as one arm compared to the two arms 74, (81, 84), and therefore the cross section of the handles 76, 85 is thin and difficult to hold.

[0068] In contrast, the eyelash curler 1 of the present invention is made of resin, and therefore the arms 14, (21, 24) of the fixing member 10 and the force application member 20 are made of a single piece, and have the same thickness as the handles 16, 25.

[0069] In this manner, in the configuration of the present invention, by making the cross-sectional shape of the handles 16, 25 in the fixing member 10 and the force application member 20 the same thickness as the arm portions 14, 21, 24, the handles 16, 25 can be made thicker, improving the holdability, and allowing sufficient force to be applied since the handles do not dig into the fingers or cause pain.

[0070] Furthermore, in the eyelash curler 1 of the present invention, referring to Figures 3, 4A, and 4B, the straight portion 161 and the curved portion 162 of the first handle 16 and the straight portion 251 and the curved portion 252 of the second handle 25 overlap in the depth direction.

[0071] Therefore, handles that overlap in the depth direction are easier to operate and apply force to the eyelashes more easily than handles that are twisted with straight and curved sections, such as the metal configuration shown in Figures 5A and 5B, because force is applied in a straight line.

[0072] Furthermore, in the metal eyelash curler 9, the arm 74 of the fixing member 70 is composed of two metal rods 741, 742, and the arm 81 of the force application member 80 is sandwiched from the side by a clamping portion 75 just below where the spacing between these rods widens to form inclined supports 73A, 73B, and the arm 81 is engaged with the clamping portion 75 by passing a pin 83 through it. Therefore, the upper side of the fulcrum where the arm 81 is sandwiched by the clamping portion 75 is exposed. When using this configuration, if the force application member 80 is rotated relative to the fixing member 70 during the eyelash curling operation, there is a risk that hair, tissue, cotton, etc. may become caught in the fulcrum where the arm 81 is sandwiched by the clamping portion 75.

[0073] In contrast to this, in the present invention, the fixed member 10 has a junction 141J at the upper end of the arm 21 above the support hole 15 through which the force application member 20 is inserted, and therefore the upper side of the fulcrum of the force application member 20 that rotates relative to the fixed member 10 is not exposed. Therefore, even if hair or the like is present nearby, it is unlikely to be caught in the engagement portion between the force application member 20 and the fixed member 10.

[0074] <Configuration approximation> Since the shape of an eyelash curler is complex, the shape was calculated by replacing it with a simpler shape.

[0075] Figures 6A, 6B, and 6C are diagrams that explain, in an approximate manner, how forces are applied to an eyelash curler. Figure 6A is a diagram showing the positions of the fulcrums and load points on the eyelash curler, and Figure 6B is a diagram that approximates the fulcrums and load points of Figure 6A by pushing them outward to form a simple beam (a concentrated load on one side). Figure 6C is a cross-sectional view of the beam portion of the fixing member and force application member, and corresponds to cross section D in Figure 6A.

[0076] At the moment the eyelashes are pinched, the rotation of force application member 20, which is the rotating part of the eyelash curler, is restricted and can be considered to hardly rotate or move at all, so the connecting part of the eyelash curler shown in FIG. 6A can be replaced with fulcrums A and B in FIG. 6B.

[0077] The load point C is the handle 25 of the force application member 20, and the load P is the force (grip force) applied to the eyelash curler by the fingers.

[0078] Here, the fixed member 10 and the force application member 20 function as the "beam" of a spring-loaded simple beam, and when considering the load and action, the width (depth) (x) and height (thickness) (y) of the cross section of the beam consisting of the fixed member 10 and the force application member 20, which are the parts that receive the force, are taken into consideration, as shown in FIG. 6C.

[0079] In the following description, the direction in which the force application members 20 rotate is referred to as the rotation direction, and the direction perpendicular to the rotation direction is referred to as the depth direction, as shown in Fig. 6A. Furthermore, the direction perpendicular to the depth direction in the cross section of the fixed member 10 and the force application members 20 is referred to as the thickness direction, as shown in Fig. 6C.

[0080] As shown in Fig. 6C, the cross sections of the arm 14 and handle 16 of the fixing member 10 and the arm portions 21, 24 and handle 25 of the force application member 20, to which force is directly applied, are preferably rectangular or rounded rectangular in order to obtain greater strength by increasing the cross-sectional area without changing the thickness of the circular metal. However, the configuration of the beam with a rectangular cross section shown in Fig. 6C is just one example, and the cross-sectional shapes of the beams of the fixing member 10 and the force application member 20 are not limited to the rectangle shown in Fig. 6C and may be other shapes such as circular, elliptical, or semicircular, with emphasis on formability and tactile feel, etc.

[0081] In addition, in the structure of the "spring simple beam (concentrated load on one side)" shown in Figure 6B, the bending moment MB generated around the support point B is the largest.

[0082] Therefore, the inventors conducted a simulation of an existing metal eyelash curler to evaluate the application of an external force (load P) to the object, and selected a resin. The results are shown in Fig. 8A, which will be described later.

[0083] 7A and 7B are diagrams showing the dimensional ratios of the force application members. In detail, Fig. 7A is a diagram showing an example of the configuration of an eyelash curler 1 of the present invention that takes into account the force ratios and movable angles of the force application members, and Fig. 7B is a diagram showing an example of the configuration of an eyelash curler that takes into account the force ratios of the force application members.

[0084] When applying the above-mentioned "simple spring beam (one-sided concentrated load)" structure to an eyelash curler, the following points are generally known about the force application member.

[0085] The eyelash curler 1 performs a curling action by rotating the force application member 20 and applying force to the operating member 30 using the handle 25 as the force point, based on the principle of a first class lever. Therefore, eyelash curling can be achieved with less force if the distance between the force points is greater than the distance between the fulcrum and the force point. For this reason, it is well known to design the curler so that distance a is smaller than distance b, as shown in Figures 7A and 7B.

[0086] Furthermore, in the force application member 20, the dimensions of the distance a from the fulcrum B to the tip side and the distance b from the fulcrum B to the handle side are preferably a:b=1:3 or greater, taking into consideration the influence on the clamping pressure (pressure that clamps the eyelashes) using the principle of leverage. That is, in the force application member 20, the distance from the fulcrum to the lower end of the force application member 20 is set to be three or more times the distance from the upper end to the fulcrum. In this embodiment, in the force application member 20, the distance from the fulcrum hole 23, which is the fulcrum that engages with the fixed member 10 via the pin shaft PS2, to the lower end of the force application member 20 is set to be three or more times the distance from the tip hole 22, which engages with the acting member 30 via the pin shaft PS1, to the fulcrum hole 23.

[0087] However, while a smaller size is desirable in terms of portability, simply setting the ratio can result in a configuration in which the force application member and fixed member are short, as shown in Figure 7B. With a configuration in which force application member 20 is short like this, both the force point and the point of action are close to fulcrum B, so a fairly large force must be applied to the handle, and the movable angle at fulcrum B must be set large.

[0088] Therefore, in this specification, when the movement amount of the lower pressing part 31 is secured to be 4 mm or more, it is preferable that a = 10 mm or more, taking into consideration the movable angle and the method of applying force, as a value that takes into consideration the balance between the feel when pressing the straight part 251 (see FIG. 6A) of the handle 25, which is the force point (load point), from the finger hole side and the generation of clamping pressure sufficient to curl the force. That is, in the first embodiment, it is preferable that the distance from the tip hole 22 at the upper end, which is the distance from the upper end to the fulcrum B, of the force application member 20, to the fulcrum hole 23 at the position of the fulcrum B, be set to 10 mm or more.

[0089] <Material selection> FIG. 8A shows the evaluation results when an eyelash curler was formed using a variety of materials, and FIG. 8B is a diagram showing the feasible range based on Young's modulus and section modulus.

[0090] In detail, Figure 8A shows the evaluation results when eyelash curlers with dimensions satisfying Figure 7A were formed and used using materials with specified cross-sectional areas and section moduli: SUS304 (stainless steel), nylon 6 / 10, polyamide (PA), a fiber-reinforced resin made by adding 55% glass fiber (GF) to PA, polyether ether ketone (PEEK), polybutylene terephthalate (PBT), GF polyamide MXD6, and CF polyamide MXD6.

[0091] For the fiber-reinforced resin "PA+GF55%", the strength evaluation was carried out by changing the cross-sectional area to change the section modulus. Increasing the cross-sectional area increases the section modulus, which moves the position on the graph in Figure 8B upward, and the evaluation may improve even for the same material. For example, for the material "PA+GF55%", the section modulus is 4.5 (mm 3 ), the strength was not met and the overall evaluation was "×", but the section modulus was 15.05 (mm 3 ) and the section modulus is 36 (mm 3 ) met the strength requirement and the overall rating was "OK".

[0092] In addition, for PBT, even if the cross-sectional area is increased to the same extent as for "PA + GF 55%" (section modulus = 32 (mm 3 ) However, it did not meet the strength evaluation criteria and the overall rating was not "OK".

[0093] In FIG. 8B, the area enclosed by a square is the recommended range determined by simulation. This recommended range is for Young's modulus of 2500 to 40000 (N / mm 2 ) material with a section modulus of 5 to 40 (mm 3 ) was decided.

[0094] In this range, the greater the Young's modulus of the resin, the smaller the section modulus can be. In other words, the greater the Young's modulus of the resin, the greater the strength can be secured even if the resin is made thinner, approaching that of a metal one. Considering the ease of use for the user, the section modulus is set to 30 (mm 3 ) or less, and the section modulus is 20 (mm 3 ) or less is even more preferable.

[0095] Conversely, even if the resin has a small Young's modulus and is weak, if the section modulus is increased, the strength may be sufficient according to the simulation. However, in consideration of operability, the upper limit of the section modulus is set to 40 (mm 3 ) was set.

[0096] Therefore, in order to increase the strength of materials containing resin without increasing the cross-sectional area, it is preferable to form the material that makes up the eyelash curler from a fiber-reinforced resin that is made by blending glass fiber (GF) into the resin. For example, adding glass fiber to a resin with the same section modulus increases the Young's modulus, and the position on the graph in Figure 8B shifts to the right.

[0097] In addition to or instead of glass fiber, CF (carbon fiber) may be mixed in. For example, in a fiber reinforced resin, it is preferable to mix glass fiber (GF) or carbon fiber (CF) in an amount of 30 mass % or more and 65 mass % or less.

[0098] The addition of glass fiber or carbon fiber can strengthen the rigidity of the resin material itself (e.g., PA) against deformation and breakage. For example, while the typical Young's modulus of PA is 1200 to 2900 MPa, adding glass fiber can increase the Young's modulus (e.g., to 4725 MPa). Furthermore, this addition reduces the stress generated by structural analysis calculations to about 30% of the tensile strength, which indicates the resin material's (e.g., PA) resistance to deformation and breakage. Therefore, eyelash curlers made from reinforced resin can approach the pressure exerted on the eyelashes by metal eyelash curlers.

[0099] There are no particular restrictions on the resin to be mixed with the glass fiber, as long as it is a resin that can be blended with fiber. Examples of resins include polyamide (PA) (including various nylons), polyether ether ketone (PEEK), polyethylene terephthalate (PETG), glycol-modified PET (PETG), polyphenylene sulfide (PPS), and polyamide MXD6.

[0100] Here, polyamide MXD6 is a crystalline thermoplastic polymer obtained from metaxylylenediamine (MXDA) and adipic acid. The GF polyamide MXD6 used here was the commercially available Reny® 1022H, which is a polyamide MXD6 blend containing 50% glass fiber (GF). The CF polyamide MXD6 used here was the commercially available Reny C408, which is a polyamide MXD6 blend containing 40% carbon fiber (CF).

[0101] In addition, resins that have high strength by themselves, such as the special polyamide MXD6, can withstand 5000 (N / mm ) without being reinforced with glass fiber or carbon. 2 ) or more, if the strength can be compensated for by simulation, the section modulus is 5 to 40 (mm 3 Any thickness within the range of ) can be used as the material for the eyelash curler of the present invention.

[0102] In addition, even if the resin is not special, the Young's modulus of the resin is 2500 (N / mm 2 ), even if the resin is nylon 6 / 10, PEEK, PET, PETG, PPS, etc., by setting the section modulus high within the above recommended range, it is possible to form an eyelash curler using the resin alone without mixing in glass fiber. In this case, for these resins alone other than nylon 6 / 10, the Young's modulus is 2500 (N / mm 2 ) ~ 5000 (N / mm 2 ), so in molding, the section modulus is set slightly away from the lower end of the recommended range, for example, 10 (mm 3 ) or more, the resin alone can achieve a predetermined strength, and can be used as the material for the eyelash curler of the present invention.

[0103] Here, the arm portions 14, 21, and 24, which are the stress generating range of the fixing member 10 and the force application member 20 where the force of the user's fingers is directly applied, are set to 2500 N / mm within the above recommended range. 3 ~40,000N / mm 3 Young's modulus and 5mm 3 ~40mm 3 It is preferable that the section modulus satisfies the following.

[0104] If the material of the link portions 32A, 32B of the acting member 30, which are indirectly subjected to force and perform lifting and lowering operations, satisfies the above recommended range of Young's modulus, the section modulus that defines the thickness may be smaller than the recommended range.

[0105] <Partial eyelash curler> In the above embodiment, the explanation was based on the premise of a full-area eyelash curler that covers nearly the entire width of the eye and pinches the entire eyelashes, but the eyelash curler of the present invention having the above-mentioned material and cross-sectional shape may also be a partial-area eyelash curler.

[0106] FIG. 9 is a diagram showing the configuration of a partial eyelash curler according to a modified example of the first embodiment of the present invention.

[0107] 9, the partial eyelash curler 2 has a configuration similar to that of the first embodiment, except that the widths in the depth direction of the upper pressing portion 11P and the lower pressing portion 31P that hold the eyelashes are shorter. Therefore, the distances between the support portions 12C, 13C, 12D, and 13D of the fixing member 10P and the distances between the link portions 32C and 32D of the acting member 30P are also narrower than those of the first embodiment.

[0108] The force required to partially curl the eyelashes by pinching them between the upper pressing part 11P and the lower pressing part 31P with a short width is smaller than the force required to curl the eyelashes across the entire width of the eye.

[0109] Therefore, as shown in FIG. 9, the width of the handle 16 and the handle 25 is set narrow when no force is being applied so that the rotational range of the force application member 20P is narrow.

[0110] In this configuration, by forming the eyelash curler using a resin whose Young's modulus and section modulus are within the recommended ranges shown in Figure 8B, strength is ensured and the eyelash curler can be operated in the same way as a metal eyelash curler without being larger than a typical metal eyelash curler.

[0111] Furthermore, since the partial eyelash curler 2 shown in FIG. 9 requires less force than the full-area type, the section modulus that defines the thickness may be smaller than the recommended range as long as the material has a Young's modulus within the above recommended range.

[0112] Furthermore, in this configuration, in fixing member 10P, at the upper end of the upper arm of the engagement portion, there is junction portion 141J that joins with inclined supports 13C, 13D, so that even if there is hair or the like, it can be prevented from being caught in the engagement portion between the force application member and fixing member.

[0113] Furthermore, in this configuration, the straight and curved portions of the handles 16, 25 overlap in the depth direction, so that force is applied in a straight line, making it easier to operate and apply force to the eyelashes.

[0114] Second Embodiment Fig. 10 is an overall perspective view of an eyelash curler 3 according to a second embodiment of the present invention. Fig. 11 is an overall perspective view of the eyelash curler 3 according to the second embodiment, seen from an angle different from that shown in Fig. 10. Fig. 12 is an exploded view of the eyelash curler 3 according to the second embodiment.

[0115] In this embodiment, the materials etc. are the same as the resin used in the first embodiment, but the hinge configurations of the engagement (fulcrum) between the fixed member and the force application member and the engagement (point of action) between the force application member and the action member are different.

[0116] As shown in FIG. 12, in this embodiment, a fitting groove 53, which is a groove (recess) for fitting and recessed below the hinge, is formed in the force application member 50 at a position slightly away from the tip end.

[0117] As shown in FIG. 12, in the fixing member 40, a support hole 45 formed in the arm 44 is provided with a fitting fulcrum shaft 48 extending in the width direction (depth direction).

[0118] Then, with the tip arm 51 of the force application member 50 inserted from the upper end side into the support hole portion 45 of the fixed member 40, the force application member 50 is pushed from top to bottom against the fixed member 40, and the fitting groove 53 engages with the fulcrum shaft 48 inside the support hole portion 45, thereby connecting the force application member 50 and the fixed member 40.

[0119] The fulcrum shaft 48 of the fixed member 40 fitted into the fitting groove 53 of the force application member 50 serves as a second fulcrum (fulcrum B in FIG. 6A), and the force application member 50 is connected to the fixed member 40 so as to be freely rotatable.

[0120] In addition, Figure 12 shows an example in which the fulcrum shaft 48 extends across the entire width of the support hole portion 45, but the fulcrum shaft 48 that can be fitted into the fitting groove 53 may also have a bilateral protrusion shape that protrudes from the inner surface of the support hole portion 45 and is interrupted in the center.

[0121] Furthermore, the arm 44 is also located above the support hole 45, and above the support hole 45 there is a junction 441J where the inclined supports 43A and 43B join together. Therefore, the fulcrum is not exposed, and even if hair, tissue, cotton, or the like is present nearby, it is possible to prevent it from being caught in the engagement portion between the force application member 50 and the fixing member 40.

[0122] The action member 60 is provided with a lower press portion 61 and link portions 62A and 62B, one end of which is connected to the lower press portion 61.

[0123] Furthermore, engagement hooks (engagement portions) 611A, 611B, each having a substantially circular shape (hook shape) with a portion missing, are provided on both the left and right ends of the lower press portion 61. In this embodiment, the engagement hooks 611A, 611B are open at the rear to facilitate attachment and detachment of the acting member 60 to and from the fixed member 40 during assembly. The engagement hooks (rear hooks) 611A, 611B engage with the pair of parallel supports 42A, 42B, allowing the acting member 60 to slide along the parallel supports 42A, 42B of the fixed member 40.

[0124] In this configuration, the other ends of the link portions 62A, 62B are bent into a U-shape and integrally formed, and the portion that connects the other ends of the link portions 62A, 62B at the other ends is a cylindrical fitting tube 63. The fitting tube 63 is an engagement portion of the acting member 60.

[0125] At the tip of the force application member 50, a fitting hook 52 is formed with a recessed upper side.

[0126] Then, when the force application member 50 is pushed upward onto the action member 60, the fitting hooks 52 engage with the fitting tubes 63, connecting the force application member 50 and the action member 60. In this way, the fitting hooks 52 of the force application member 50 engage with the fitting tubes 63 of the action member 60, allowing the action member 60 to move in conjunction with the point of action of the force application member 50.

[0127] In this way, by realizing the connection between the fixing member 40 and the force application member 50 (second fulcrum B in FIG. 6A ), and the connection between the force application member 50 and the acting member 60 (first fulcrum A in FIG. 6A ) in a hook shape, attachment, detachment, etc. can be performed without using a shaft that passes through the components for connection.

[0128] Therefore, without using the metal pin shafts PS1 and PS2 for connecting the respective members in the first embodiment, it is possible to realize a completely metal-free engaging portion between the constituent elements.

[0129] In addition, the engagement can be released by applying force in the direction that the hooks come out, so the user can disassemble and assemble the product by hand. For example, if the eyelash curler 3 becomes dirty, it can be disassembled and washed, so even the small irregularities in the engagement part can be cleaned, and then it can be reassembled, so it can be kept clean down to the smallest details.

[0130] Furthermore, even if a sudden load is applied inside a cosmetic pouch or other luggage, the hooks will disengage, preventing damage. In this case, the first fulcrum A (see Figure 6A) and the second fulcrum B are engaged in opposite directions, so if a strong force is applied in one direction, only one of the first fulcrum A and the second fulcrum B will disengage. Therefore, if the engagement is suddenly released, it can be easily restored.

[0131] Furthermore, a fitting hook 52 with a recessed upper side is provided at the tip of the tip-side arm 51 of the force application member 50, and a fitting groove 53 with a recessed lower side is formed in a portion of the tip-side arm 51 closer to the tip than the handle 55, and the arm portions (second arm portions) 51, 54 extend as a single line from the tip to the handle 55.

[0132] Therefore, in the eyelash curler 3 of this embodiment, as in the first embodiment, unlike a metal curler, the handles 46, 55 can be made as thick as the extensions (arm portions 44, 51, 54), thereby improving the holdability compared to a metal curler.

[0133] In order to satisfy the ratio of FIG. 6A, in this embodiment, the distance from the fitting groove 53, which is the fulcrum that engages with the fixed member 40, to the lower end of the force application member 50 is set to be three or more times the distance from the fitting hook 52, which engages with the acting member 60, which is the upper end, to the fitting groove 53.

[0134] In this specification, the distance from the fitting hook 52 at the top end to the fitting groove 53 serving as the fulcrum is set to 10 mm or more to ensure that the lower press part 31 has a movement amount of 4 mm or more.

[0135] Referring to FIG. 12, in the central arm 54 of the force application member 50, a portion closer to the handle 55 than the fitting groove 53, and on the leading surface in the rotation direction, wavy irregularities are formed.

[0136] The fit is improved by these wavy uneven shapes 541, 542. In particular, when applying makeup by oneself, the thumb is placed in the finger hole of the handle 46 on the fixing member 40 side, and the other fingers are placed in the finger holes of the handle 55 on the force application member 50 side. When the middle finger, which is most likely to apply force, is placed in the finger hole of the handle 55, or when the ring finger is placed in the finger hole, the wavy uneven shapes 541, 542 allow the index finger and middle finger to support the force application member 50 as well, stabilizing movement.

[0137] Furthermore, a finger hook (also called a finger rest) 56 is provided at the rear end of the handle 55. For example, when a user curls their own eyelashes, they can insert their middle finger into the finger hole of the handle 55 on the force application member 50 side and their ring finger into the finger hook 56, or they can insert their index finger into the finger hole of the handle 55 on the force application member 50 side and their middle finger into the finger hook 56, or they can insert their ring finger into the finger hole of the handle 55 on the force application member 50 side and their little finger into the finger hook 56.

[0138] In this way, regardless of which finger is inserted, the force application member 50 is supported by the wavy uneven shapes 541, 542 and the finger hook 56 with fingers other than the one inserted in the finger hole of the handle 55, so that when curling the eyelashes, the load on one finger at the time of pushing is shared and the operation is stable.

[0139] Furthermore, hit points 47 and 57 are provided at the portions that face each other when the handle 46 of the fixing member 40 and the handle 55 of the force application member 50 are closed.

[0140] When pressing the eyelashes, the tips of the hit points 47, 57 of the handles 46, 55 come into contact with each other, thereby preventing excessive rotation of the force application member 50 relative to the fixing member 40.

[0141] Furthermore, since rotation is restricted by providing the hit points 47, 57 on the inner edges of the handles 46, 55, there is a risk that, for example, if the clipper rubber (not shown) becomes crushed and thin due to repeated use, the clamping pressure of the press unit when pressing it down may become insufficient. Therefore, when providing the hit points 47, 57, it is preferable to set the length, etc., taking into account the possibility of the clipper rubber being crushed.

[0142] 13A and 13B are a front view and a rear view of the eyelash curler 3 of the second embodiment.

[0143] 13A and 13B, when the direction perpendicular to the direction in which the force application member 50 rotates is defined as the depth direction, the width (x2) in the depth direction of at least a portion of the arm (first arm portion) 44 and the handle 46 of the fixed member 40 is equal. It can also be seen that the width (x2) in the depth direction of at least a portion of the second arm portions 51, 54 and the handle 55 of the force application member 50 is equal.

[0144] In this embodiment, since the wavy uneven shapes 541, 542 and the hit points 47, 57 are provided, the thickness (height) and width in the rotation direction of the beams of the arms 44, 51, 54 and handles 46, 55 are not uniform.

[0145] However, even in this embodiment, the center lines CL of the arms 44, 51, 54 in the depth direction (the direction of width x2) extend in the same direction as and overlap with the center lines CL of the handles 46, 55. Therefore, during operation, the pinching force from the fingers is applied directly from the handles 46, 55 via the arms 44, 51, 54 that extend on the same center line, and the pinching force on the eyelashes is easily transmitted.

[0146] 10, 11, and 12, in fixing member 40, handle 46 is configured to form a finger hole by a straight portion 461 that branches off from the lower end of one arm 44 in the thickness direction at branch point BP1 and extends linearly from arm 44, and a curved portion 462 that bulges out from the lower end of straight portion 461 in the first thickness direction, folds back, and returns to branch point BP1.

[0147] Furthermore, in the force application member 50, the handle 55 is configured to form a finger hole by a straight portion 551 that branches off from the lower end of one of the arm portions 51, 54 in the thickness direction at a branching point and extends linearly from the central arm 54 that is part of the arm portions 51, 54, and a curved portion 552 that bulges out from the lower end of the straight portion 551 in a second thickness direction that is opposite to the first thickness direction, and then bends back to return to the branching point.

[0148] In this embodiment, the finger holes formed in the handles 46, 55 are substantially semicircular.

[0149] 10 to 13B, the straight portion 461 and the curved portion 462 of the handle 46 of the fixing member 40 and the straight portion 551 and the curved portion 552 of the handle 55 of the force application member 50 overlap in the depth direction.

[0150] Furthermore, in this configuration, the straight and curved portions of the handles 46, 55 overlap in the depth direction, so that force is applied in a straight line, making it easier to operate and apply force to the eyelashes.

[0151] In this embodiment, by using a resin that falls within the feasible range defined by the section modulus and Young's modulus shown in Fig. 8B, it is possible to achieve the same stress as a metal eyelash curler with the same flexibility and clamping pressure. As a result, it is possible to improve the grip of the handle while ensuring strength without increasing the size compared to a metal eyelash curler, and to achieve the same eyelash curling effect as a metal eyelash curler with the same operation as a metal eyelash curler.

[0152] In the second embodiment, an example was used in which wavy uneven shapes 541, 542 and hit points 47, 57 are provided in a configuration in which the action point (fulcrum A) and the fulcrum (fulcrum B) engage using hooks and grooves between components, but the wavy shapes and hit points may also be applied to the first embodiment in which engagement is achieved by a pin axis.

[0153] Alternatively, in the configuration of the second embodiment in which components are engaged with each other using hooks and grooves, the wavy uneven shapes 541 and 542 and the hit points 47 and 57 do not have to be provided.

[0154] Furthermore, in a configuration in which the points of action and fulcrums are engaged using hooks and grooves between components, the beams of the arm portions 14, 21, 24 and the handles 16, 25 may be configured to be equal in thickness as well as width, as in the first embodiment.

[0155] In addition, the first embodiment describes a handle with a roughly teardrop-shaped finger hole, and the second embodiment describes a handle with a roughly semicircular finger hole, but the shape of the finger hole may be reversed, or may be circular, oval, etc. Furthermore, the handle may have a shape in which the area around the branch point of the curved portion is interrupted.

[0156] Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to such specific embodiments, and various modifications and changes are possible within the scope of the gist of the embodiments of the present invention described in the claims.

[0157] This application claims priority based on Japanese Patent Application No. 2018-174220, filed with the Japan Patent Office on September 18, 2018, the entire contents of which are incorporated herein by reference. [Explanation of symbols]

[0158] 1,3 Eyelash curler 2 Partial Eyelash Curler 10 Fixing member 11 Upper press section 12A,12B Parallel support (support part) 13A, 13B Slanted support (support part) 14 Arm (first arm part) 141J Confluence 15 Support hole 151A,151B Small hole 16 Handle 20 Force point member 21 Tip arm (arm part, second arm part) 22 Tip hole (tip engagement hole) 23 Support hole 24 Central arm (arm section, second arm section) 25 Handle 30 Working member 31 Lower press part (contact member, upper clamping piece) 311A, 311B Engagement hook (engagement part, hooks on both ends) 32A, 32B link section 33 Connecting part 331A,331A small hole 400 Fixing member 41 Upper press section 42A, 42B Parallel support (support part) 43A, 43B Slanted support (support part) 44 Arm (first arm part) 441J Confluence 45 Support hole 46 Handle 47 hit points 48 Fulcrum Axis 50 Force point member 51 Tip arm (arm part, second arm part) 52 Interlocking hook (connection part) 53 Fitting groove (fitting part, connecting part) 54 Central arm (arm section, second arm section) 541,542 Wavy uneven shape 55 Handle 56 Finger rest 57 hit points 60 Working member 61 Lower press part (contact member, upper clamping piece) 611A, 611B Engagement hook (engagement part, rear hook) 62A, 62B link section 63 Connection A First support point B Second fulcrum C Load point PS1 pin shaft PS2 pin shaft

Claims

1. a fixing member integrally formed with the upper press portion; An operating member that allows the lower press unit to move up and down relative to the upper press unit; a force application member that moves the acting member up and down by rotating around a portion that engages with the fixed member as a fulcrum, the fixing member, the acting member, and the force application member are each integrally formed from resin, The fixing member is integrally formed with the upper press section, a first handle on which a user places their fingers, a first arm section extending in the vertical direction, a hole frame section located above the first arm section and having a support hole section formed therein, and a pair of support posts that branch into two from a joining section at the upper end of the hole frame section and support both ends of the upper press section; the force application member is integrally formed with a second handle on which the user places his / her fingers, an extending second arm portion, and a tip portion that is positioned above the second arm portion and is inserted into the hole frame portion, When a direction perpendicular to the direction in which the force application member rotates is defined as a depth direction, and a direction perpendicular to the depth direction in a cross section of the fixing member and the force application member is defined as a thickness direction, In the fixing member, the first handle is ring-shaped, branching from a lower end of the first arm portion toward one side in the thickness direction, expanding, and folding back to form a finger hole; In the force application member, the second handle is ring-shaped, branching from a lower end of the second arm portion toward the other side in the thickness direction, bulging out, and folding back to form a finger hole; the tip end of the force application member is narrower in width in the depth direction than the second handle and the second arm portion, the first arm portion, the first handle, the second arm portion, and the second handle have the same width in the depth direction and the same thickness in the thickness direction; the first arm portion of the fixing member is composed of one piece, and the second arm portion of the force application member is composed of one piece, In the fixing member, the first arm portion is longer in the vertical direction than the support hole portion. Eyelash curler.

2. When a direction perpendicular to the depth direction in a cross section of the fixing member and the force application member is defined as a thickness direction, In the fixing member, the first handle is formed of a ring including a straight portion that branches off from a lower end of one of the first arms in a thickness direction at a branching point and extends linearly from the first arm, and a curved portion that bulges out from the lower end of the straight portion to one side in the thickness direction, folds back, and returns to the branching point; In the force application member, the second handle is formed by a ring including a straight portion that branches off at a branch point in the thickness direction from a lower end of one of the second arms and extends linearly from the second arm, and a curved portion that bulges out from the lower end of the straight portion to the other side in the thickness direction, bends back, and returns to the branch point, The straight portion and the curved portion of the first handle and the straight portion and the curved portion of the second handle overlap in the depth direction.

2. The eyelash curler according to claim 1.

3. a fulcrum hole is formed in a portion of the force application member that serves as the fulcrum, the fulcrum hole penetrating in a depth direction perpendicular to a direction in which the force application member rotates, Small holes are formed on both side walls of the support hole portion of the fixing member, With the tip end of the force application member inserted from the upper end into the support hole of the fixing member, it is engaged with a pin shaft so as to pass through the fulcrum hole and the small holes in the both side walls, and the pin shaft serves as a fulcrum for the rotation of the fixing member. The eyelash curler according to claim 1 or 2.

4. the acting member is integrally formed with the lower press portion, a link portion whose upper end is connected to the lower press portion, and a connecting portion whose lower end is connected to the link portion, A tip hole is formed at the upper end of the tip portion of the force application member, and penetrates in a depth direction perpendicular to the direction in which the force application member rotates. The connecting portion is recessed in a U-shape toward the lower end, and small holes are formed on both sides of the recess. The upper end of the tip of the force application member is inserted into the inside of the recess of the connecting portion and is engaged with a pin shaft so as to pass through the tip hole and the small holes on both side surfaces of the connecting portion, thereby connecting the acting member to the force application member so as to be movable in conjunction with the force application member. The eyelash curler according to any one of claims 1 to 3.

5. In the action member, both left and right ends of the lower press part are hooks having a hook shape with both ends open in the depth direction, The hooks on both ends are fitted to the pair of support posts, so that the working member is slidable relative to the fixing member.

5. The eyelash curler according to claim 4.

6. a fixing member integrally formed with the upper press portion; An operating member that allows the lower press unit to move up and down relative to the upper press unit; a force application member that moves the acting member up and down by rotating around a portion that engages with the fixed member as a fulcrum, the fixing member, the acting member, and the force application member are each integrally formed from resin, The fixing member is integrally formed with the upper press section, a first handle on which a user places their fingers, a first arm section extending in the vertical direction, a hole frame section located above the first arm section and having a support hole section formed therein, and a pair of support posts that branch into two from a joining section at the upper end of the hole frame section and support both ends of the upper press section; the force application member is integrally formed with a second handle on which the user places his / her fingers, an extending second arm portion, and a tip portion that is positioned above the second arm portion and is inserted into the hole frame portion, When a direction perpendicular to the direction in which the force application member rotates is defined as a depth direction, and a direction perpendicular to the depth direction in a cross section of the fixing member and the force application member is defined as a thickness direction, In the fixing member, the first handle is ring-shaped, branching from a lower end of the first arm portion toward one side in the thickness direction, expanding, and folding back to form a finger hole; In the force application member, the second handle is ring-shaped, branching from a lower end of the second arm portion toward the other side in the thickness direction, bulging out, and folding back to form a finger hole; The upper surface of the second arm portion is formed with a wavy uneven shape, the tip end of the force application member is narrower in width in the depth direction than the second handle and the second arm portion, the first arm portion, the first handle, the second arm portion, and the second handle have the same width in the depth direction; the first arm portion of the fixing member is composed of one piece, and the second arm portion of the force application member is composed of one piece, In the fixing member, the first arm portion is longer in the vertical direction than the support hole portion. Eyelash curler.

7. a recess for fitting, the recess being recessed downward, is formed at the tip end of the force application member; The fixing member has a fitting protrusion provided inside the support hole, The force application member is rotatably connected to the fixed member using the fitting recess of the force application member and the fitting protrusion of the fixed member as a fulcrum, and the force caused by the rotation is transmitted to the acting member so as to act in an upward direction. The eyelash curler according to claim 1, 2 or 6.

8. The action member is integrally formed with the lower press portion and a link portion whose one end is connected to the lower press portion, a fitting hook having an upper recess is formed at the upper end of the tip of the force application member, a fitting cylinder is provided at the other end of the link portion of the acting member; The fitting hook of the force application member and the fitting tube of the action member are fitted together, whereby the action member and the force application member are connected to each other so as to be movable in conjunction with each other.

8. The eyelash curler according to claim 7.

9. In the action member, both left and right ends of the lower press part are rear hooks having a hook shape that opens rearward, The rear hooks are fitted to the pair of support posts, so that the working member is slidable relative to the fixing member.

9. The eyelash curler according to claim 8.

10. The resin has a Young's modulus of 2500 N / mm 3 ~40,000N / mm 3 The first arm portion and the hole frame portion of the fixing member, and the second arm portion and the tip portion of the force application member are made of a material having a section modulus of 5 mm 3 ~40mm 3 Consists of The eyelash curler according to any one of claims 1 to 9.

11. The resin is a fiber-reinforced resin formed by blending glass fiber (GF) with any of the following resins: polyamide (PA), polyether ether ketone (PEEK), polyethylene terephthalate (PET), glycol-modified PET (PETG), polyphenylene sulfide (PPS), and polyamide MXD6.

11. The eyelash curler according to claim 10.

12. The fiber reinforced resin is formed by blending the glass fiber (GF) in an amount of 30 mass % or more and 65 mass % or less into the resin.

12. The eyelash curler according to claim 11.

13. 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 first arm portion and the hole frame portion of the fixing member, and the second arm portion and the tip portion of the force application member have a section modulus of 10 mm 3 More than 11. The eyelash curler according to claim 10.

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