JP7577540B2 - Eyelash Curler - Google Patents

Description

The present invention relates to an eyelash curler.

Generally, eyelash curlers (eyelash curlers, curlers) are designed using the principle of leverage and are made of metal such as stainless steel and are operated by two fingers.

However, in typical metal eyelash curlers that use the principle of leverage, one metal rod is twisted to form a ring at the grip, while the other part has two metal rods extending side by side, meaning that the cross section of the metal at the grip is thin and the hold is poor. Also, people with metal allergies cannot use them.

Therefore, in order to prevent metal allergies and to be 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 eyelid 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).

There are also eyelash curlers that have a spring and are made entirely of resin on the outside, without using metal on the outside (for example, Patent Document 3).

Japanese Utility Model Application Publication No. 59-40002 Japanese Patent Application Publication No. 2007-68695 Japanese Patent Application Publication No. 2004-57581

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.

In addition, if a plastic eyelash curler were to be formed in the same shape as a typical metal eyelash curler, it would not have enough strength for clamping, so the eyelash curler shown in Patent Document 3, whose entire exterior is made of plastic, is provided with a spring for clamping. However, the provision of the spring results in a complex and large structure. Furthermore, with this structure, the appearance is not similar to that of a typical metal eyelash curler that uses a lever, and the operation method is different.

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

In order to solve the above problems, one aspect of the present invention is
A fixing member integrally formed with the upper press portion;
An operating member that allows the lower press portion to move up and down relative to the upper press portion;
a force application member that moves the acting member up and down by rotating about a portion that engages with the fixed member as a fulcrum,
the fixing member, the action member, and the force application member are each integrally formed of resin,
The fixing member is integrally formed with the upper press part, a first handle on which a user places his/her fingers, a first arm part extending in the vertical direction, and a pair of support columns branching into two from the first arm part to support both ends of the upper press part,
The force application member is integrally formed with a second handle on which the user places his/her fingers and an extending second arm portion,
The first arm portion is formed with a support hole portion through which the force application member is inserted,
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 fixed member and the force application member is defined as a thickness direction,
In the fixing member, the first handle is in a ring shape that branches out from a lower end of the first arm portion toward one side in the thickness direction, bulges out, and is folded back to form a finger hole,
In the force application member, the second handle is in a ring shape that branches off 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,
a portion of the first arm portion other than the support hole portion, the first handle, a portion of the second arm portion other than the end portion opposite the second handle, 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 configured as one piece, and the second arm portion of the force application member is configured as one piece.
To provide an eyelash curler.

According to one embodiment, a resin eyelash curler can be operated in the same way as a metal one, while maintaining its strength and not being larger than a typical metal eyelash curler.

FIG. 1 is an overall perspective view of an eyelash curler according to a first embodiment of the present invention (part 1). FIG. 2 is an overall perspective view of the eyelash curler of the first embodiment (part 2). FIG. 2 is an exploded view of the eyelash curler according to the first embodiment. FIG. 2 is a front view of the eyelash curler according to the first embodiment. FIG. 2 is a rear view of the eyelash curler according to the first embodiment. FIG. 2 is a front perspective view of a metal eyelash curler of a comparative example. FIG. 2 is a rear perspective view of a metal eyelash curler according to a comparative example. FIG. 2 is a diagram explaining the fulcrum and load point of an eyelash curler. A diagram explaining the supports and load points when approximating a simple spring beam structure. FIG. 2 is a cross-sectional view of a beam portion of the eyelash curler. FIG. 13 is a diagram showing an example of the configuration of an eyelash curler of the present invention, taking into consideration the force ratio and movable angle at the force application members. FIG. 13 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. A table showing the evaluation results when eyelash curlers were formed and used using multiple materials. FIG. 1 shows the feasible range of resins for eyelash curlers based on Young's modulus and section modulus. 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. FIG. 1 is an overall perspective view (part 1) of an eyelash curler according to a second embodiment of the present invention. FIG. 2 is an overall perspective view of the eyelash curler according to the second embodiment (part 2). FIG. 11 is an exploded view of the eyelash curler according to the second embodiment. FIG. 11 is a front view of an eyelash curler according to a second embodiment. FIG. 11 is a rear view of the eyelash curler of the second embodiment.

Hereinafter, a description will be given of an embodiment of the present invention with reference to the drawings. In the following drawings, the same components are designated by the same reference numerals, and duplicate explanations may be omitted.

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

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 of Fig. 1. Fig. 3 is an exploded view of the eyelash curler of Fig. 1.

The eyelash curler 1 of this embodiment has a similar structure to a typical metallic eyelash curler, with each component being integrally formed from a resin, which will be described later.

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

The fixed member (also called the support part) 10 has an upper press part 11, parallel pillars 12A, 12B, inclined pillars 13A, 13B, an arm 14, and a handle 16. A support hole part 15 is formed in the arm 14, which is the handle part. 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 joins the inclined pillars 13A, 13B.

The upper press part (also called the abutment member, upper clamp piece, or frame) 11 is the part that abuts against the upper surface of the upper eyelashes when curling the upper eyelashes.

The parallel columns 12A, 12B are integrally connected to both ends of the upper press section 11 in the width direction and extend in the vertical direction. The upper ends of the inclined columns 13A, 13B are connected to the lower ends of the parallel columns 12A, 12B, and the lower ends are connected to the arm 14 with a narrower V-shaped gap. The parallel columns 12A, 12B and the inclined columns 13A, 13B function as support sections.

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

The handle (handle, finger ring, grip, gripping part) 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 hole of the handle 16. Alternatively, when a makeup artist or other practitioner 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 hole of the handle 16.

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.

3, small holes 151A, 151B are formed in the side surfaces (side walls) on both sides that define the support hole 15 formed in the arm 14, penetrating in the width direction. Note that in this configuration, the side surfaces that define the support hole 15 are shown as being wider than the rest of the arm 14, but may be the same width as the rest of the arm 14.

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

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.

The tip arm 21 of the force application member 20 is inserted into the support hole 15 of the fixed 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 with the fulcrum hole 23 aligned with the small holes 151A, 151B on the side of the support hole 15.

This engagement allows the force application member 20 to rotate relative to the fixed member 10 with the pin axis PS2 as the axis of rotation. In other words, the force application member 20 uses the principle of the first type of lever to rotate with the handle 25 as the force application point, the engagement portion with the fixed member 10 as the fulcrum, and the upper end as the point of action.

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 in 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 is the area where a relatively large amount of stress is generated, and stress is also generated in other areas.

The handle (handle, finger ring, grip, gripping part) 25 is ring-shaped with 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.

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

As described above, the tip arm 21 is provided with the fulcrum hole 23 that serves as the fulcrum and the tip hole 22 that serves as the point of application, and the central arm 24 extends at an angle relative to the tip arm 21. The central arm 24 also extends in the same direction as the straight 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 straight portion 251 of the handle 25 that extends continuously from the arm 24 becomes approximately parallel to the straight portion 161 of the handle 16 that extends continuously from the arm 14, so that force can be applied without waste.

Also, referring to Figures 1, 2 and 3, in the fixing member 10, the handle 16 is configured to branch off from the lower end of one arm 14 in the thickness direction y (see Figure 6C) at a branching point BP1, and to form a finger hole by a straight portion 161 that 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 branching point BP.

In addition, in the force application member 20, the handle 25 is configured to branch off at branch point BP2 in the thickness direction from the lower end of the central arm 24 of the single arm portion 21, 24, and to form a finger hole by a straight portion 251 extending in a straight line from the central arm 24, which is part of the arm portion, and a curved portion 252 that bulges from the lower end of the straight portion 251 in a second thickness direction opposite to the first thickness direction, bends back, and returns to branch point BP2.

In this embodiment, the finger holes formed in the handles 16, 25 are teardrop shaped.

The acting member (interlocking part, lifting part) 30 has a lower press part 31, link parts 32A and 32B, and a connecting part 33.

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

When curling the lower eyelashes, the eyelash curler 1 is held upside down compared to Figure 1, and the lower press part 31 presses down from above on the upper surface of the eyelashes that are sandwiched between it and the upper press part 11, curling the lower eyelashes downward.

The link sections (lifting supports) 32A, 32B have their upper ends connected to the lower press section 31, are inclined in an approximately V shape, and their lower ends connected to the connecting section 33.

In this embodiment, a junction 332J is provided at the upper end of the connecting portion 33, where the link portions 32A and 32B join before the engagement groove. The junction 332J reinforces the thinnest link portions 32A and 32B in the eyelash curler 1.

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

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

Due to this engagement, when the force application member 20 rotates around the pin axis PS1 as the rotation axis, the action member 30 can move up and down in unison with it.

In addition, engagement hooks (engagement portions, both end hooks) 311A, 311B, each of which is substantially circular (hook-shaped) with a portion missing, are provided on both the left and right ends of the lower press section 31. The engagement hooks 311A, 311B engage with the pair of parallel supports 12A, 12B, allowing the lower press section 31 to slide along the parallel supports 12A, 12B of the fixed member 10.

Figure 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.

In addition, the clipper rubber CR (see FIG. 2), which is an elastic member, is sandwiched between the upper surface of the lower press section 31. Therefore, a groove portion 312G for sandwiching the clipper rubber CR is formed in the upper surface of the lower press section 31.

With this configuration, when the handle 25 on one end 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), causing the tip hole 22, which connects to the connecting part 33 with the acting member 30 on the other end, to move in the opposite direction to the movement of the handle 25, and the acting member 30 is pushed up together with the pin axis PS1.

As a result, by moving the handle 25, the acting member 30 raises and lowers the lower press section 31 while the engagement 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.

In addition, 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.

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

Figure 4A is a front view of the eyelash curler 1 of the first embodiment, and Figure 4B is a rear view of the eyelash curler 1 of the first embodiment.

4A and 4B, when the direction perpendicular to the direction in which the force application member 20 rotates is taken 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 and the first handle 16 are equal. Also, 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, and the second handle 25 are equal.

Referring to Figures 1 to 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.

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 sections 251, 161 and the curved sections 252, 162 may have different widths, in which case the thicker section will partially overlap the thinner section in the depth direction.

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

With this configuration, when using the device, the pinching force from the fingers is applied directly from the handles 16, 25, which are the same thickness and overlap in the depth direction, through the arms 14, 21, 24, which are the same width and extend in the same direction, making it easier to transmit the force of pinching the eyelashes.

In the eyelash curler 1, the fixing member 10, the force application member 20, and the action member 30 are each integrally constructed from resin, and details of the constituent resins will be described later.

In this embodiment, the connection portion between the force application member 20 and the acting member 30 and the connection 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.

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 completely metal-free.

Comparative Example
Figures 5A and 5B are diagrams of a comparative metallic eyelash curler. The eyelash curler 9 shown in Figures 5A and 5B is an example of a general metallic eyelash curler. Figure 5A is a front perspective view of the comparative metallic eyelash curler 9, and Figure 5B is a rear perspective view of the comparative metallic eyelash curler 9.

The structural differences between the metal eyelash curler 9 and the eyelash curler 1 of the present invention shown in Figure 1 are explained below.

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

In detail, 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 a vertically long slit is formed in the opposing parts of both upper ends of the metal rod corresponding to the parallel struts 72A and 72B. At this time, the lower end is twisted into a ring shape, and in the arm 74, which is an extension part from the strut parts 72A, 73A, 72B, and 73B to just before the handle 76, two thin metal rods (741, 742) are lined up in contact or close proximity. Then, a metal frame is inserted into the slits on the inner surfaces of the tips of the parallel struts 72A and 72B, which are metal rods, and welded to connect the upper press part 71 and the parallel struts 72A and 72B.

The force application member 80 is twisted into a ring shape at its lower end to form a handle 85, and in the arm portions 81 and 84, which extend from the handle 85 to the tip, two thin metal rods (811, 812) and (841, 842) are arranged side by side in contact with each other.

In the acting member 90, the end of a metal rod made by bending a single metal rod 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 to the lower press part 91.

In addition, when the apexes of the approximately V-shaped links 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 links 92A, 92B, and the upper ends of the links 92A, 92B are welded to the lower press part 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.

In this configuration, the handles 76, 85 that form 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) that are combined together, so the cross section of the handles 76, 85 is thin and has poor holding ability.

In contrast, the eyelash curler 1 of the present invention is made of resin, and therefore in the fixing member 10 and the force application member 20, the arm 14, (21, 24) is made of a single piece and is the same thickness as the handle 16, 25.

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 holding ability, and allowing sufficient force to be applied since the handles do not dig into the fingers or cause pain when force is applied.

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.

Therefore, handles that overlap in the depth direction are easier to operate and make it easier to apply force to the eyelashes, since force is applied in a straight line, compared to handles that are twisted with straight and curved parts such as the metal configuration shown in Figures 5A and 5B.

In addition, in the metal eyelash curler 9, the arm 74 of the fixed member 70 is composed of two metal bars 741, 742, and the arm 81 of the force application member 80 is clamped from the side at the clamping section 75 just below where the space between these bars widens to form the inclined supports 73A, 73B, and the arm 81 is engaged with the clamping section 75 by passing a pin 83 through it. Therefore, the upper side of the fulcrum where the arm 81 is clamped by the clamping section 75 is exposed. When using this configuration, if the force application member 80 is rotated relative to the fixed member 70 during the eyelash curling operation, there is a risk that hair, tissue, cotton, etc. will become caught in the fulcrum where the arm 81 is clamped by the clamping section 75.

In contrast, 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, so 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.

<Constructive approximation>
Since an eyelash curler has a complicated shape, the shape was calculated by replacing it with a simpler shape.

Figures 6A, 6B, and 6C are diagrams that explain the approximate way in which force is applied to an eyelash curler. Figure 6A is a diagram showing the positions of the fulcrum and load point on an eyelash curler, and Figure 6B is a diagram approximating the fulcrum and load point of Figure 6A to a simple beam (load concentrated 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 of Figure 6A.

At the moment the eyelashes are clamped, the rotation of the force application member 20, which is the rotating part of the eyelash curler, is restricted and can be thought of as barely rotating or moving at all, so the connecting part of the eyelash curler shown in Figure 6A can be replaced with fulcrums A and B in Figure 6B.

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

Here, the fixed member 10 and the force application member 20 function as the "beam" of a spring-loaded simple beam, and when considering loads and actions, 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 receiving the force, are taken into account, as shown in Figure 6C.

In the description, the direction in which the force application member 20 rotates is the rotation direction, and the direction perpendicular to the rotation direction is the depth direction, as shown in Fig. 6A. Also, the direction perpendicular to the depth direction in the cross section of the fixed member 10 and the force application member 20 is the thickness direction, as shown in Fig. 6C.

As shown in Fig. 6C, the cross sections of the arm 14 and handle 16 of the fixing member 10 and the arm parts 21, 24 and handle 25 of the force application member 20, to which the force is directly applied, are preferably rectangular or rounded rectangular in order to increase the cross-sectional area and obtain greater strength without changing the thickness of the circular metal. However, the configuration of the beam with a rectangular cross section shown in Fig. 6C is only one example, and the cross-sectional shape of the beam of the fixing member 10 and the force application member 20 is 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.

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

Therefore, the inventors conducted a simulation based on an existing metal eyelash curler to evaluate the case where an external force (load P) is applied to the object, an eyelash curler, and selected a resin. The results are shown in Figure 8A, which will be described later.

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

When applying the above-mentioned "simple spring beam (concentrated load on one side)" structure to an eyelash curler, the following points are generally known about the force application members.

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

In addition, 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 more, taking into consideration the influence on the clamping pressure (pressure to pinch the eyelashes) by the principle of leverage. That is, in the force application member 20, the distance from the fulcrum to the bottom end of the force application member 20 is set to be three times or more the distance from the top 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 by the pin shaft PS2, to the bottom end of the force application member 20 is set to be three times or more the distance from the tip hole 22, which engages with the working member 30 by the pin shaft PS1, to the fulcrum hole 23.

However, while a smaller size is desirable for 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. In a structure in which the force application member 20 is short like this, both the force point and the point of action are close to the fulcrum B, so a fairly large force needs to be applied to the handle, and the movable angle at the fulcrum B needs to be set large.

In this specification, therefore, when the movement amount of the lower press 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 way in which the force is applied, as a value that considers the balance between the feeling of use 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 clamping pressure that is sufficient to curl the tool. That is, in the first embodiment, it is preferable that the distance from the tip hole 22, which is the upper end of the force application member 20 and is the distance from the upper end to the fulcrum B, to the fulcrum hole 23 at the position of the fulcrum B, is set to 10 mm or more.

<Material Selection>
FIG. 8A shows the evaluation results when an eyelash curler was formed using a plurality of materials and used, and FIG. 8B shows the feasible range based on Young's modulus and section modulus.

In detail, Figure 8A shows the evaluation results when eyelash curlers having dimensions satisfying Figure 7A were formed and used for materials having specified cross-sectional areas and section moduli, such as SUS304 (stainless steel), nylon 6/10, polyamide (PA), 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.

For the fiber-reinforced resin "PA+GF55%", the strength evaluation was performed 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, when the "PA+GF55%" material has a section modulus of 4.5 ( ^mm3 ), the strength was not met and the overall evaluation was "X", but when the section modulus was 15.05 ( ^mm3 ) and when the section modulus was 36 ( ^mm3 ), the strength was met and the overall evaluation was "O".

As for PBT, even when the cross-sectional area was increased to the same extent as "PA+GF55%" (section modulus = 32 (mm ³ )), the strength evaluation was not met and the overall evaluation was not "good".

In Figure 8B, the boxed area is the recommended range determined by simulation, which is a material with a Young's modulus of 2500 to 40000 (N/mm ² ) and a section modulus of 5 to 40 (mm ³ ).

In addition, within 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 to approach that of a metal one. Considering the ease of use for the user, the section modulus is preferably 30 ( ^mm3 ) or less, and more preferably 20 ( ^mm3 ) or less.

Conversely, even if the resin has a small Young's modulus and is weak, simulations have shown that if the section modulus is increased, it may be possible to meet the required strength. However, taking into consideration operability, the upper limit of the section modulus was set at 40 ( ^mm3 ) so as not to make the cross-sectional area too large.

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 constitutes the eyelash curler from a fiber-reinforced resin that combines glass fiber (GF) with 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.

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

The addition of GF or CF can increase the rigidity of the resin material itself (e.g. PA) against deformation and breakage. For example, the typical Young's modulus of PA is 1200-2900 MPa, but adding glass fiber can increase the Young's modulus (e.g. to 4725 MPa). This addition also reduces the stress generated by structural analysis calculations to about 30% of the tensile strength, which indicates the resistance of the resin material itself (e.g. PA) against deformation and breakage. Therefore, an eyelash curler made of reinforced resin can be made to approach the pressure exerted on the eyelashes by a metal eyelash curler.

There are no particular limitations on the resin to be mixed with the glass fiber, so long as it is a resin that can be mixed 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), polyamide MXD6, etc.

Here, polyamide MXD6 is a crystalline thermoplastic polymer obtained from metaxylylenediamine (MXDA) and adipic acid. The GF polyamide MXD6 used here is commercially available Reny (registered trademark) 1022H, which is a polyamide MXD6 blended with 50% glass fiber (GF). The CF polyamide MXD6 used is commercially available Reny C408, which is a polyamide MXD6 blended with 40% carbon fiber (CF).

Furthermore, in the case of resins that have great strength on their own, such as the special polyamide MXD6 alone, which has a Young's modulus of 5000 (N/ ^mm2 ) or more without being reinforced with glass fiber or carbon, and if the strength can be compensated for through simulation, any thickness within the range of section modulus 5 to 40 ( ^mm3 ) can be used as the material for the eyelash curler of the present invention.

Furthermore, even if the resin does not need to be a special resin, as long as the resin has a Young's modulus of 2500 (N/mm ² ) or more, it is possible to form an eyelash curler from nylon 6/10, PEEK, PET, PETG, PPS, etc. by setting the section modulus high within the above recommended range, without mixing in glass fiber. In this case, since these resins alone other than nylon 6/10 are expected to have a Young's modulus of about 2500 (N/mm ² ) to 5000 (N/mm ² ), if the section modulus during molding is set to a value slightly away from the lower end of the above recommended range, for example 10 (mm ³ ) or more, the resin alone will be able to achieve a predetermined strength, and it can be used as the material for the eyelash curler of the present invention.

Here, it is preferable that the arm portions 14, 21, 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, satisfy the above-mentioned recommended ranges of Young's modulus of 2500 N/mm ³ to 40000 N/mm ³ and section modulus of 5 mm ³ to 40 mm ³ .

In addition, as long as the material of the link portions 32A, 32B of the acting member 30, which are indirectly subjected to force and perform the raising and lowering operation, satisfies the Young's modulus within the above recommended range, the cross-sectional modulus that specifies the thickness may be smaller than the recommended range.

<Partial eyelash curler>
In the above embodiment, the explanation was given 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 eyelash curler.

Figure 9 is a diagram showing the configuration of a partial eyelash curler as a modified example of the first embodiment of the present invention.

As shown in Figure 9, the partial eyelash curler 2 has a similar configuration to the first embodiment described above, and the width in the depth direction of the upper press part 11P and the lower press part 31P that hold the eyelashes is short. Therefore, the spacing between the support parts 12C, 13C, 12D, and 13D of the fixing member 10P and the spacing between the link parts 32C and 32D of the action member 30P are also narrower than in the first embodiment.

The force required to partially curl the eyelashes by clamping them between the upper press portion 11P and the lower press portion 31P, which have a short width, is less than the force required to curl the eyelashes across the entire width of the eye.

Therefore, as shown in Figure 9, the handles 16 and 25 are also set to a narrow width when no force is applied so that the range of rotational motion of the force application member 20P is narrowed.

In this configuration, by forming the eyelashes using a resin whose Young's modulus and section modulus are within the recommended ranges shown in Figure 8B, strength is ensured and the eyelashes can be curled using the same operation as with metal eyelashes without being larger than a typical metal shape.

Furthermore, since the partial eyelash curler 2 shown in Figure 9 requires less force than the full-area type, as long as the material has a Young's modulus within the above recommended range, the cross-sectional modulus that determines the thickness may be smaller than the recommended range.

In addition, in this configuration, in the fixing member 10P, the upper end of the upper arm of the engagement portion has a junction portion 141J that joins with the inclined supports 13C, 13D, so that even if hair or the like is present, it can be prevented from being pinched in the engagement portion between the force application member and the fixing member.

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

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 as viewed from an angle different from that of Fig. 10. Fig. 12 is an exploded view of the eyelash curler 3 according to the second embodiment.

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

As shown in FIG. 12, in this embodiment, the force application member 50 has an engagement groove 53 formed at a portion slightly away from the tip, the engagement groove (recess) being recessed below the hinge.

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

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 downward into the fixed member 40, and the fitting groove 53 engages with the fulcrum shaft 48 within the support hole portion 45, thereby connecting the force application member 50 and the fixed member 40.

The fulcrum shaft 48 of the fixed member 40, which is fitted into the fitting groove 53 of the force application member 50, becomes a second fulcrum (fulcrum B in Figure 6A), thereby connecting the force application member 50 to the fixed member 40 so as to be freely rotatable.

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 engage with the engagement groove 53 may also have a double-sided protrusion shape that protrudes from the inner surface of the support hole portion 45 and is interrupted in the center.

The arm 44 is also located above the support hole 45, and above the support hole 15 is a junction 441J where the inclined supports 43A and 43B join. Therefore, the fulcrum is not exposed, and even if hair, tissue, cotton, etc. are present nearby, it is possible to prevent it from being pinched in the engagement portion between the force application member 50 and the fixed member 40.

The acting member 60 also has a lower press portion 61 and link portions 62A, 62B whose one ends are connected to the lower press portion 61.

In addition, engagement hooks (engagement portions) 611A, 611B, which are substantially circular (hook-shaped) 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 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.

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

A mating hook 52 with a recessed upper side is formed at the tip of the force application member 50.

Then, by pushing the force application member 50 upward against the action member 60, the fitting hook 52 engages with the fitting tube 63, connecting the force application member 50 and the action member 60. In this way, the fitting hook 52 of the force application member 50 and the fitting tube 63 of the action member 60 fit together, allowing the action member 60 to move in conjunction with the point of action of the force application member 50.

In this way, the connection between the fixing member 40 and the force application member 50 (second fulcrum B in Figure 6A), and the connection between the force application member 50 and the action member 60 (first fulcrum A in Figure 6A) are realized in a hook shape, making it possible to attach, detach, etc. without using a shaft portion that passes through the components for connection.

Therefore, without using the metal pin shafts PS1 and PS2 used in the first embodiment to connect the various parts, it is possible to achieve a completely metal-free engagement between the components.

In addition, the hooks can be released from the engaged state by applying force in the direction that pulls them out, so the user can disassemble and reassemble the product by hand. For example, if the eyelash curler 3 becomes dirty, it can be disassembled and cleaned, so even the small irregularities in the engagement area can be cleaned, and it can then be reassembled, so cleanliness can be maintained down to the smallest details.

In addition, even if a sudden load is applied inside a cosmetic pouch or luggage, the hooks will come off and damage can be avoided. In this case, because the engagement directions of the first fulcrum A (see FIG. 6A) and the second fulcrum B are opposite, if a strong force is applied in one direction, only one of the first fulcrum A and the second fulcrum B will be disengaged. Therefore, if the engagement is suddenly released, it can be easily restored.

In addition, a recessed upper mating hook 52 is provided at the tip of the tip arm 51 of the force application member 50, and a recessed lower mating groove 53 is formed in a portion of the tip arm 51 closer to the tip than the handle 55, and the arm portions (second arm portions) 51, 54 extend from the tip to the handle 55 as a single piece.

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

Here, in order to satisfy the ratio of Figure 6A, in this embodiment, in the force application member 20, the distance from the engagement 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 engagement hook 52, which engages with the acting member 60, which is the upper end, to the engagement groove 53.

In this specification, the distance from the upper end of the engagement hook 52 to the engagement groove 53, which serves as the fulcrum, is set to 10 mm or more to ensure that the lower press section 31 has a movement amount of 4 mm or more.

Referring to Figure 12, in the central arm 54 of the force application member 50, a portion closer to the handle 55 than the engagement groove 53 is provided with wavy projections and recesses on the leading surface in the direction of rotation.

The wavy uneven shapes 541, 542 improve the fit. 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 exert 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, stabilizing the movement.

Furthermore, a finger rest 56 is provided at the rear end of the handle 55. For example, when a user curls their own eyelashes, they 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 rest 56, or they 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 rest 56, or they 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 rest 56.

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

In addition, hit points 47, 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.

When pressing the eyelashes, the tips of the hit points 47, 57 of the handles 46, 55 abut against each other, preventing excessive rotation of the force application member 50 relative to the fixed member 40.

Since rotation is restricted by providing hit points 47, 57 on the inner edges of 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 section when pressed may be insufficient. Therefore, when providing hit points 47, 57, it is preferable to set the length, etc., taking into account the possibility that the clipper rubber may be crushed.

Figures 13A and 13B are front and rear views of the eyelash curler 3 of the second embodiment.

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

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 rotational direction of the beams of the arm portions 44, 51, 54 and the handles 46, 55 are not uniform.

However, even in this embodiment, the center line CL of the arms 44, 51, 54 in the depth direction (width x2 direction) extends in the same direction as the center line CL of the handles 46, 55 and overlaps with them. Therefore, during operation, the pinching force from the fingers is applied straight from the handles 46, 55 via the arms 44, 51, 54 that extend on the same center line, making it easy to transmit the force of pinching the eyelashes.

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

In addition, in the force application member 50, the handle 55 is configured to form a finger hole by a straight portion 551 that branches off at a branching point in the thickness direction from the lower end of one of the arm portions 51, 54 and extends in a straight line from the central arm 54, which is part of the arm portions 51, 54, and a curved portion 552 that bulges from the lower end of the straight portion 551 in a second thickness direction opposite to the first thickness direction, bends back, and returns to the branching point.

In this embodiment, the finger holes formed in the handles 46, 55 are approximately semicircular in shape.

Referring to Figures 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.

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 to apply force to the eyelashes.

In this embodiment, too, by using a resin that falls within the feasible range defined by the section modulus and Young's modulus shown in Figure 8B, it is possible to achieve the same stress with the same bending and clamping pressure as a metal product. Therefore, while improving the holdability of the handle, it is possible to ensure strength without increasing the size from a metal shape, and achieve the same eyelash curling effect as a metal product with the same operation as a metal product.

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 with each other using hooks and grooves between the 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.

Alternatively, in the configuration of the second embodiment in which components engage with each other using hooks and grooves, it is not necessary to provide the wavy uneven shapes 541, 542 or the hit points 47, 57.

In addition, in a configuration in which the point of action and the fulcrum are engaged using hooks and grooves between the components, as in the first embodiment, 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.

In addition, in the first embodiment, a handle with a roughly teardrop-shaped finger hole was described, and in the second embodiment, a handle with a roughly semicircular finger hole was described, but the shape of the finger hole may be the opposite, or it may be circular, elliptical, etc. Furthermore, the handle may have a shape in which the area around the branching point of the curved portion is interrupted.

Although a preferred embodiment of the present invention has been described in detail above, the present invention is not limited to such specific embodiment, and various modifications and variations are possible within the scope of the gist of the embodiment of the present invention described in the claims.

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

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

Claims (2)

A fixing member integrally formed with the upper press portion;
An operating member that allows the lower press portion to move up and down relative to the upper press portion;
a force application member that moves the acting member up and down by rotating about a portion that engages with the fixed member as a fulcrum,
the fixing member, the action member, and the force application member are each integrally formed of resin,
The fixing member is integrally formed with the upper press part, a first handle on which a user places his/her fingers, a first arm part extending in the vertical direction, and a pair of support columns branching into two from the first arm part to support both ends of the upper press part,
The force application member is integrally formed with a second handle on which the user places his/her fingers and an extending second arm portion,
The first arm portion is formed with a support hole portion through which the force application member is inserted,
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 fixed member and the force application member is defined as a thickness direction,
In the fixing member, the first handle is in a ring shape that branches out from a lower end of the first arm portion toward one side in the thickness direction, bulges out, and is folded back to form a finger hole,
In the force application member, the second handle is in a ring shape that branches off 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,
a portion of the first arm portion other than the support hole portion, the first handle, a portion of the second arm portion other than the end portion opposite the second handle, 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 configured as one piece, and the second arm portion of the force application member is configured as one piece.
Eyelash curler. A fixing member integrally formed with the upper press portion;
An operating member that allows the lower press portion to move up and down relative to the upper press portion;
a force application member that moves the acting member up and down by rotating about a portion that engages with the fixed member as a fulcrum,
the fixing member, the action member, and the force application member are each integrally formed of resin,
The fixing member is integrally formed with the upper press part, a first handle on which a user places his/her fingers, a first arm part extending in the vertical direction, and a pair of support columns branching into two from the first arm part to support both ends of the upper press part,
The force application member is integrally formed with a second handle on which the user places his/her fingers and an extending second arm portion,
The first arm portion is formed with a support hole portion through which the force application member is inserted,
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 fixed member and the force application member is defined as a thickness direction,
In the fixing member, the first handle is in a ring shape that branches out from a lower end of the first arm portion toward one side in the thickness direction, bulges out, and is folded back to form a finger hole,
In the force application member, the second handle is in a ring shape that branches off 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,
a portion of the first arm portion other than the support hole portion, the first handle, a portion of the second arm portion other than the end portion opposite the second handle, and the second handle have the same width in the depth direction;
The upper surface of the second arm portion is formed with a corrugated uneven shape,
The first arm portion of the fixing member is configured as one piece, and the second arm portion of the force application member is configured as one piece.
Eyelash curler.

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