JP7159010B2 - A method for evaluating an eyelash curler, and a jig and eyelash curler used in the method. - Google Patents

Description

The present invention relates to a method for evaluating the functionality of an eyelash curler, particularly its curling force, a method for quantifying the load applied to the eyelashes when using the eyelash curler, and a jig and eyelash curler used for these evaluation methods.

Conventionally, a method for measuring the length and curvature of eyelashes using a simple device and a method for evaluating the usability of mascara have been proposed (Patent Documents 1 and 2), but the function of an eyelash curler used to curl eyelashes. In particular, there is no established method for objectively evaluating the curling power, and it is mainly based on sensory factors such as "ease of curling eyelashes", "ease of separating eyelashes", and "ease of use". depended on the evaluation.

In particular, due to the structure of the eyelash curler, the movement of the handle portion is curved, so quantitative measurement using existing equipment was difficult.

Therefore, regarding the functionality of the eyelash curler, a method of quantitatively measuring the load applied to the eyelashes with a simple device and objectively evaluating the curling force and the like has been desired.

JP 2009-45230 JP 2002-199932

Accordingly, an object of the present invention is to provide an eyelash curler evaluation method capable of quantitatively evaluating the functionality of an eyelash curler, a jig used in the method, and an eyelash curler.

The present invention is intended to solve the above problems, and is a jig for holding an eyelash curler having a mechanism for applying a load by sandwiching the eyelashes from above and below with a clamping body fixed part and a clamping body movable part, comprising a base. is provided on the base, and fixes the clamping body fixing portion in an inverted state of the eyelash curler, and holds the eyelash curler in a state in which the clamping body movable portion can be brought into contact with and separated from the clamping body fixing portion. An eyelash curler evaluation jig comprising: an eyelash curler holding part; and an eyelash holding part provided on the base and holding the eyelashes at a position where the eyelashes can be pinched by the clamping body fixing part and the clamping body movable part.

Further, the present invention is an eyelash curler provided with measuring means for measuring the distance between arbitrary two points that varies with the opening and closing operation of the handle.

Further, the present invention holds the eyelash curler by the jig for evaluating the eyelash curler, holds the eyelashes by the eyelash holding part, presses down the connecting part of the arm part of the eyelash curler and the connecting member with a predetermined load by a pressing means, and the angle generated in the eyelashes This is an eyelash curler evaluation method for evaluating the curling force by measuring the

Further, the present invention is a method of measuring the gripping distance of the handle during use of the eyelash curler and quantifying the load applied to the eyelashes during use of the eyelash curler.

Furthermore, the present invention measures the gripping distance of the handle when using the eyelash curler, quantifies the load applied to the eyelashes when using the eyelash curler, and applies the load to the connecting portion between the arm portion of the eyelash curler and the connecting member by a pressing means. An eyelash curler evaluation method characterized by determining

The eyelash curler evaluation jig according to the present invention can hold the eyelash curler in a state that can be opened and closed, and the pressing means pushes down the connecting portion between the arm portion of the eyelash curler and the connecting member to apply the same load as when curling the eyelashes. can be applied, it is possible to mechanically reproduce the load during use.

In addition, the eyelash curler equipped with the measuring means according to the present invention can measure the distance between any two points that fluctuates with the opening and closing operation of the handle. can do.

Moreover, the eyelash curler evaluation method according to the present invention can quantitatively measure the load applied to the eyelashes and objectively evaluate the curling force and the like.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an eyelash curler that is an object of the evaluation method of the present invention; The perspective view of the state which set the eyelash curler to the jig of this invention. The front view of the jig of this invention. The side view of the jig of this invention. The top view of the jig of this invention. (a) A diagram of a state before the eyelash curler is set in the jig of the present invention and the spindle of the pressing means is lowered. (b) A diagram of a state in which an eyelash curler is set in the jig of the invention and the spindle of the pressing means is lowered. 1 is a side view of an eyelash curler of the present invention provided with measuring means; FIG. 4 is a graph of measurement results of the curling force of an eyelash curler according to the evaluation method of the present invention.

Embodiments of a jig and an eyelash curler used in the method for evaluating an eyelash curler of the present invention will be specifically described below with reference to the drawings. In addition, this invention is not restricted at all by these embodiments.

FIG. 1 shows an eyelash curler to be evaluated by the eyelash curler evaluation method of the present invention. As shown in the figure, the eyelash curler 6 includes a pair of handle portions 61a and 61b into which the thumb and forefinger can be respectively inserted when used, arm portions 62a and 62b formed by extending from the handle portions 61a and 61b, respectively, A bifurcated frame portion 63 is provided by further extending from the arm portion 62a. A pinching body fixing portion 651 is provided on the tip end side of the frame portion 63 so as to bridge between the left and right frame portions 63 , and a pinching body is attached to and separated from the pinching body fixing portion 651 . A movable portion 652 is provided. A connection member 64 is attached to the clamping body movable portion 652 . The connecting member 64 is fixed at its front end to the clamping member movable portion 652, and its rear end is rotatably inserted into an insertion hole 67 formed in the arm portion 62b.

The arm portion 62a and the arm portion 62b are rotatably supported by a support shaft 66. As shown in FIG. By opening and closing the handle portions 61a and 61b like scissors, the insertion hole 67 side of the arm portion 62b rotates around the support shaft 66, and the connection member 64 moves up and down in conjunction with this. The clamping body movable part 652 approaches or separates from the clamping body fixed part 651 in conjunction with the movement of the clamping body 64 .

The clamping body movable part 652 is provided with an elastic member 653 on its upper side, and the eyelashes are sandwiched between the elastic member 653 and the lower side of the clamping body fixing part 651, and a constant load is applied to the eyelashes. can be curled.

Note that the configuration of the eyelash curler that is the object of the method for evaluating the curling force of an eyelash curler of the present invention is not limited to this. However, it is sufficient if at least the connecting portion between the arm portion 62b and the connecting member 64 has a configuration in which it projects outward (toward the user's face side) and is bent in a side view as in this embodiment.

Next, the configuration of the jig 1 used in the eyelash curler evaluation method of the present invention will be described with reference to FIGS. 2 to 5. FIG. As shown in each figure, the jig 1 includes a base 2 and an eyelash curler holder 3 and an eyelash holder 4 provided on the base 2 .

Although the base 2 of this embodiment is formed in a substantially rectangular plate shape, the shape is not limited to this, and it is sufficient if the eyelash curler holding part 3 and the eyelash holding part 4 can be provided on the upper surface thereof. The eyelash curler holding portion 3 includes two support posts 31a and 31b vertically provided from the upper surface of the base 2, two fixing members 32a and 32b attached to the support posts 31a and 31b, respectively, and the fixing members 32a and 32b. It consists of two supporting rods 33a and 33b projecting in the horizontal direction, respectively, and a pair of gripping portions 34a and 34b provided on the upper surface of the base 2. As shown in FIG.

The two support columns 31a and 31b are vertically provided from the base 2 with a predetermined space therebetween. Each of the fixing members 32a and 32b is formed in a substantially rectangular shape in a plan view, and a vertical hole is pierced in a portion eccentric from the center to one end. is fixed by the fixing means of The fixing members 32a and 32b are attached to the columns 31a and 31b at different heights. Specifically, the fixing member 32a is attached to the column 31a at a position higher than the fixing member 32b. Furthermore, since the fixing members 32a and 32b are attached so that the ends on which the vertical holes are not formed are directed toward the adjacent struts 31b and 31a, as shown in the side view of FIG. The member 32a and the fixing member 32b are attached so as to protrude alternately at different heights between the struts 31a and 31b. The method of fixing the fixing members 32a and 32b to the pillars 31a and 31b is not particularly limited, and fixing means such as fastening with screws or other crimping or bonding may be used.

The fixing members 32a and 32b are provided with horizontal holes through the side surfaces thereof, through which the support rods 33a and 33b are inserted, and projected horizontally at least toward the grip portion 34a. The support rods 33a and 33b are formed to protrude from the fixed members 32a and 32b toward the grip portion 34a with different lengths. Specifically, the support rod 33a protrudes longer than the support rod 33b. formed. In this embodiment, the support rods 33a and 33b are fixed by being inserted into the horizontal holes of the fixing members 32a and 32b. , and fixing means such as adhesion may be used.

Groove portions 331 are provided at least in the top portions of the support rods 33a and 33b on the grip portion 34a side. The groove portion 331 is formed in a shape and size that allows at least one side surface of the arm portion 62a and the frame portion 63 of the eyelash curler 6 to be fitted therein. angle) can be adjusted as appropriate.

The gripping portions 34a and 34b are formed as plate-shaped pieces, and recessed portions 341 are provided in at least one side portion thereof. The concave portion 341 is formed in a shape and size that allows the outer side portion of the frame portion 63 of the eyelash curler 6 to be fitted therein. Of the pair of gripping portions 34a and 34b, the gripping portion 34b is provided between the struts 31a and 31b, and the gripping portions 34a are arranged in a row orthogonal to the alignment of the struts 31a and 31b at a predetermined interval. It is Furthermore, the grips 34a and 34b are provided so that the concave portions 341 face each other.

The eyelash holding part 4 consists of two plate-like members consisting of a plate-shaped holding part upper part 41 formed in a substantially rectangular shape and a holding part lower part 42 formed in substantially the same shape as the holding part upper part 41, which are vertically stacked. It is formed so that it can be fixed by a screw portion 43 in a state where it is held. The eyelash holding part 4 is arranged on the base so that the end on the side where the eyelashes X are sandwiched is positioned between the gripping part 34a and the gripping part 34b. In the present embodiment, the eyelashes are sandwiched from above and below by the holding portion upper portion 41 and the holding portion lower portion 42, and are fixed by the screw portion 43. However, as long as the eyelashes are held and fixed on the base 2, a mechanism is provided. , is not limited to such a configuration.

Next, a method for holding the eyelash curler 6 by the jig 1 of the present invention will be described. First, the eyelash curler 6 is placed in an inverted state so that the clamping body fixing portion 651 side faces downward, and the side surfaces of the left and right frame portions 63 of the clamping body fixing portion 651 are sandwiched from the left and right by the grip portions 34a and 34b, and are inserted into the concave portion 341. Fit. Next, while adjusting the inverted angle of the eyelash curler 6, one side surface of the frame portion 63 is fitted into the groove portion 331 of the support rod 33b, and one side surface of the arm portion 62a is fitted into the groove portion 331 of the support rod 33a. 2).

As a result, the frame portion 63 and the arm portion 62a are held at the pair of gripping portions 34a and 34b and the support rods 33a and 33b at four points, and the clamping body fixing portion 651 is fixed to the base 2. become. On the other hand, the handle 61b and the arm portion 62b extending from the handle 61b are not fixed and can be opened and closed. are also in a state of being able to approach or separate from the clamping body fixing portion 651 .

In this embodiment, the eyelash curler 6 is held at a total of four positions, the frame 63 and the arm portion 62a. As long as the main body can be held, the location and number of holdings are not limited to this embodiment.

Next, referring to FIG. 6, a mechanism for setting the eyelash curler 6 in the jig 1 of the eyelash curler of the present invention and opening and closing the eyelash curler 6 using the pressing means 5 will be described. The pressing means 5 used in the present invention can preferably use a texture analyzer, a rheometer, or the like, but is not particularly limited to these as long as it can press an object with a specified load.

FIG. 6(a) shows a state before the start of the measurement operation with the pressing means 5 set in the jig 1 of the present invention while holding the eyelash curler 6 (the eyelash curler holder 3 is not shown). The pressing means 5 of this embodiment comprises a rod-shaped spindle 51 that can be raised and lowered, and a substantially rectangular parallelepiped contact portion 52 attached to the tip of the spindle 51, but the mode of the pressing means 5 is not limited to this. It is sufficient that a predetermined load can be applied to the connecting portion between the arm portion 62b of the eyelash curler 6 and the connecting member 64. As shown in FIG. When actually evaluating the curling force of an eyelash curler using eyelashes, the eyelash holder 4 holding the eyelashes X is arranged on the base 2 . At this time, the eyelash holding part 4 is set at a position where the eyelashes X are sandwiched from above and below by the clamping body movable part 652 and the clamping body fixing part 651 .

As shown in FIG. 6(a), the pressing means 5 has a contact portion 52 that connects the arm portion 62b of the eyelash curler 6 and the connecting member 64, more specifically, the portion where the arm portion 62b is provided with the insertion hole 67. It is located above, and is set at a position where the abutting portion 52 can abut on the connecting portion when the spindle 51 is lowered. At the time of measurement, the spindle 51 descends, and the contact portion 52 contacts and pushes down the connection portion between the arm portion 62b and the connecting member 64 (FIG. 6b). By pushing down the connecting portion of the arm portion 62b and the connecting member 64 in this manner, the handle portion 61b is lifted with the support shaft 66 as a fulcrum, and the eyelash curler 6 shifts from the open state to the closed state. Along with this, the clamping body movable portion 652 approaches the clamping body fixing portion 651 side, and finally, the elastic member 653 and the clamping body fixing portion 651 come into contact with each other and a certain load is applied. Become. In order to release the load, the spindle 51 of the pressing means 5 is lifted. When the spindle 51 is lifted and the load on the connecting portion between the arm portion 62b and the connecting member 64 is removed, the handle portion 61b is lifted by its own weight. Return to the state of 6(a).

The load applied by the pressing means 5 can be arbitrarily set. The force can be accurately reproduced by the pressing means 5, which is more preferable. A method for quantifying such loads will be described below. In the present specification, the term "grasping" means that the clamping body fixing portion 651 and the clamping body movable portion 652 are in a state in which the clamping body fixing portion 651 and the clamping body movable portion 652 are in contact with each other, and then the clamping body fixed portion 651 and the clamping body movable portion 652 are gripped by a predetermined amount. This means that the handle portion 61a and the handle portion 61b are gripped with a stronger force in order to apply the load.

In order to quantify the load, first, the force with which the handle portions 61a and 61b are gripped during use is converted into a distance and measured. Specifically, when using an eyelash curler 60 equipped with a vernier caliper-like measuring means 7 capable of measuring the distance between any two points that fluctuates along with the opening and closing operation, and gripping the handle portion 61a and the handle portion 61b Measure the distance of

As shown in FIG. 7, the measuring means 7 of the eyelash curler 60 has a scale portion 71 fixed to the handle portion 61a at a fixing portion 711, and is attached to the scale portion 71 so as to be slidable in its longitudinal direction. A slide portion 72 and a bar 73 protruding from the lower portion of the slide portion 72 toward the arm portion 62b on the opposite side and provided so that the tip portion 731 of the bar 73 abuts the side portion of the arm portion 62b. 7, the scale portion 71 is provided at a position further back than the handle portion 61a with a clearance provided so as not to hit the finger inserted into the handle portion 61a. Further, the bar 73 is also provided at a position recessed from the arm portion 62a similarly to the scale portion 71, and is raised from the bar 73 to the front side of the figure so that the contact portion 731 contacts the arm portion 62b. It is formed by bending.

The method of using the eyelash curler 60 provided with such measuring means 7 is as follows. First, the handle portions 61a and 61b are held by the index finger and the middle finger, and the handle portions 61a and 61b are brought close to each other until the clamping body fixed portion 651 and the clamping body movable portion 652 are in contact with each other (FIG. 7). In this state, the scale portion 71 is measured while the tip of the clamping body fixing portion 651 is in contact with the elastic member 653 of the clamping body movable portion 652 .

Next, the handle portions 61 a and 61 b are gripped and a load is applied as in the case of use, and the elastic member 653 is made to bite into the tip portion of the clamping body fixing portion 651 . As a result, the bar 73 in contact with the arm portion 62b is pushed out toward the arm portion 62a, and in conjunction with the bar 73, the slide portion 72 moves away from the handle portion 61a. When the gripping of the handle portions 61a and 61b is completed, the scale portion 71 is measured again. By measuring the movement distance of the slide portion 72 in this manner, the gripping distance of the handle portions 61a and 61b can be measured.

In this embodiment, the tip portion 731 of the bar 73 is in contact with the arm portion 62b in the vicinity of the base of the handle portion 61b. The contact position is not limited to this as long as the contact distance can be measured. Further, the measurement by the scale portion 71 may be performed by visual observation. For example, when measuring the individual distances when repeating the operation of gripping the handle portions 61a and 61b a plurality of times, the slide portion 72 may be measured by a separate camera or the like. It is also possible to take a moving image of the distance of , and measure the distance from the moving image.

The method for evaluating the curling force of the eyelash curler of the present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. In the following examples, the curling force was evaluated for three types of eyelash curlers each having elastic members 653 with convex, planar, and concave cross-sectional shapes.

(1) Quantification of load applied to eyelashes First, using the eyelash curler 60 equipped with the measuring means 7, the user's grip force was measured as follows. First, the handle 61a and the handle 61b were closed, and the tip of the clamping body fixing portion 651 was brought into contact with the elastic member 653 of the clamping body movable portion 652. As shown in FIG. From this state, the handle 61a and the handle 61b were grasped and a load was applied, in the same way as when curling the eyelashes, so that the elastic member 653 was made to bite into the tip of the clamping body fixing portion 651. As shown in FIG. The grasping distance at this time was measured by the measuring means 7, and the average value was obtained. From this measurement, it was found that the gripping force during normal use is within the range of 0 to 3 mm in terms of the gripping distance between the handle 61a and the handle 61b.

(2) Machine Reproduction of Load Applied to Eyelash Next, the pressing means 5 was used to reproduce the user's grip force. First, an eyelash curler 60 equipped with a measuring means 7 was set on the jig 1 . A texture analyzer (manufactured by TA. XT Plus StableMicroSystems) was used as the pressing means 5, and the jig 1 was set so that the spindle 51 of the texture analyzer was positioned above the connecting portion between the arm portion 62b and the connecting member 64. Then, by operating the texture analyzer, the spindle 51 was lowered to push down the connecting portion between the arm portion 62b and the connecting member 64. As shown in FIG. At this time, when a load was applied so that the gripping distance was within the range of 0 to 3 mm from the state where the tip of the clamping body fixing portion 651 was in contact with the elastic member 653, the load on the texture analyzer was 0 to 3 mm. It was found to be in the range of 10 kg.

(3) Measurement by target eyelash curler Next, an eyelash curler to be evaluated was set on jig 1 , and eyelash holder 4 holding artificial eyelashes was set on jig 1 . Then, under the following load conditions, the connecting portion between the arm portion 62b and the connecting member 64 was pressed down by the texture analyzer of the pressing means 5, and the angle of the bent portion of the artificial eyelashes thus obtained was measured. Such an angle can be measured, for example, by drawing an extension line (straight line) from the base along the extension direction of the eyelashes and measuring the angle at which the eyelashes bend with respect to this extension line. The reason why the load is applied four times is that when using an eyelash curler, the load is generally applied to the eyelashes in a plurality of times.
<Load conditions>
Load (kg): 0.5, 1, 2, 3, 4, 5, 6, 8, 10
Push down speed: 10mm/s
Load holding time: 2 seconds Loading times: 4 times

The results obtained by the above measurements are shown in the graph of FIG. In the graph, ▪ indicates the result of the concave type, ♦ indicates the result of the convex type, and ▲ indicates the result of the flat type. As shown in the graph, when the elastic member 653 is of the concave type, it is easy to curl with a weak force or a strong force. It was found that the curling force was weak. As described above, according to the evaluation method using the jig 1 of the present invention, it was possible to objectively evaluate the curling force of different eyelash curlers due to the difference in cross-sectional shape of the elastic member 653 .

Note that (1) quantification of the load applied to the eyelashes may be omitted.

Reference Signs List 1 Jig 2 Base 3 Eyelash curler holder 4 Eyelash holder 5 Pressing means 6 Eyelash curler 7 Measuring means 31a, 31b Posts 32a, 32b Fixing member 33a, 33b... Supporting rods 34a, 34b... Grasping part 41... Upper part of eyelash fixing part 42... Lower part of eyelash fixing part 43... Screw part
51 : Spindle 52 : Abutting portion 60 : Eyelash curler 61a : Handle portion 61b : Handle portion 62a : Arm portion 62b : Arm portion 63 : Frame portion 64 : Connecting member 65 : Clamping body 66 ... Support shaft 67 ... Insertion hole 71 ... ... Scale part 72 ... ... Slide part 73 ... Bar 331 ... Groove part 341 ... ... Recessed part 641 ... ... Bent part 651 ... ... Clamping body fixing part 652 ... ... Clamping pressure Body movable part 653... Elastic member 711... Fixed part 731... Tip part X... Eyelashes

Claims (8)

It comprises a pair of handle portions, arm portions formed by extending from the handle portions, and a frame portion further extended from one arm portion and branched into a bifurcated shape. A clamping body fixing portion is provided so as to bridge between the left and right frame portions, and a clamping body movable portion is provided so as to be able to contact and separate from the clamping body fixing portion, and the clamping body movable portion is provided. A connecting member is attached to the pair of The arm extending from the handle is rotatably supported by a support shaft, and by opening and closing the pair of handles in a scissor-like fashion, the clamping body movable part moves to the clamping body fixed part in conjunction with the arm. A jig for holding an eyelash curler that approaches or separates from the eyelash curler, comprising a base and a handle part of the eyelash curler provided on the base, with the clamping body fixed part and the clamping body movable part downward An eyelash curler holding part that holds the eyelash curler in a state in which the clamping body fixing part is fixed in such a state and the clamping body movable part can be brought into contact with and separated from the clamping body fixing part; A jig for evaluating an eyelash curler, comprising an eyelash holding part for holding eyelashes at a position where eyelashes can be sandwiched by a clamping body fixing part and a clamping body movable part. The eyelash curler holder includes two posts vertically installed from the upper surface of the base, two fixing members respectively attached to the posts, and two support rods horizontally protruding from the fixing members. Further, it comprises a pair of gripping portions provided on the upper surface of the base, and one arm portion of the eyelash curler and one side surface of the frame portion extending from the arm portion can be fitted to at least one top portion of the support bar. A groove is provided, and at least one side of the gripping portion is provided with a concave portion into which the outer side surface of the frame portion can be fitted , and one arm portion and the frame portion are respectively fitted into the grooves of the two support rods. 2. The eyelash curler according to claim 1, further comprising one of the arm portions and the frame portion is held by fitting the frame portion into the concave portion of the grip portion, and the eyelash curler is held in a state in which the clamping body fixing portion is fixed to the base. eyelash curler evaluation jig. The eyelash holding part is formed so that it can be fixed by a screw part in a state in which the upper part and the lower part of the holding part are stacked vertically, and the end on the side that sandwiches the eyelashes is positioned between the pair of holding parts. 3. The eyelash curler evaluation jig according to claim 2, disposed thereon. It comprises a pair of handle portions, arm portions formed by extending from the handle portions, and a frame portion further extended from one arm portion and branched into a bifurcated shape. A clamping body fixing portion is provided so as to bridge between the left and right frame portions, and a clamping body movable portion is provided so as to be able to contact and separate from the clamping body fixing portion, and the clamping body movable portion is provided. A connecting member is attached to the pair of The arm extending from the handle is rotatably supported by a support shaft, and by opening and closing the pair of handles in a scissor-like fashion, the clamping body movable part moves to the clamping body fixed part in conjunction with the arm. Measurement of the gripping distance of the handle when applying a load so that the tip of the fixed part of the clamping body bites into the elastic member of the movable part of the clamping body a scale portion fixed to one handle portion; a slide portion slidably attached to the scale portion in its longitudinal direction; An eyelash curler provided with a bar projecting in the direction of the arm portion of the eyelash curler and having a tip portion thereof in contact with a side surface portion of the arm portion . The eyelash curler according to claim 1 is held by the eyelash curler evaluation jig according to any one of claims 1 to 3, the eyelashes are held by the eyelash holding part, and the connecting part between the arm part of the eyelash curler and the connecting member is pressed by means for pressing. An eyelash curler evaluation method in which the curl force is evaluated by pressing down with a predetermined load and measuring the angle generated on the eyelashes. 5. A method of measuring the gripping distance of the handle during use with the eyelash curler according to claim 4 and quantifying the load applied to the eyelashes during use of the eyelash curler. The eyelash curler according to claim 4 measures the gripping distance of the handle portion during use, quantifies the load applied to the eyelashes during use of the eyelash curler, and applies it to the connecting portion between the arm portion of the eyelash curler and the connecting member by pressing means. 6. The eyelash curler evaluation method according to claim 5 , wherein a load is determined. 8. The eyelash curler evaluation method according to claim 5 or 7 , wherein the pressing means is a texture analyzer equipped with a vertically movable spindle.

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