Sanitary pants

Sanitary pants

<p>11. . . Predecessor</p><p>12. . . Back piece</p><p>13. . . Lower hip</p><p>14. . . Waist</p><p>15. . . Leg opening</p><p>16. . . Telescopic part</p><p>17. . . Peripheral</p><p>27. . . Peripheral</p><p>twenty one. . . Waist elastic member</p>

Figure 1 is (A) (B) the front view and the back view of the sanitary pants of the first embodiment of this creation.

Figure 2 is an expanded view of the sanitary pants shown in Figure 1.

Figure 3 is (A) (B) the front view and the back view of the sanitary pants of the second embodiment of this creation.

Figure 4 is an expanded view of the sanitary pants shown in Figure 3.

Figure 5 is a front view and a back view of (A) (B) conventional sanitary pants.

[Industrial use field]

This creation is about sanitary trousers for physiological use with excellent fit and feel.

[Advanced Technology]

In order to prevent menstrual blood from leaking or soaking to the outside, sanitary trousers usually have a general structure in which a waterproof cloth is added to the inner side of the thigh fabric of womens sanitary trousers. The above-mentioned sanitary trousers, in order to prevent leakage caused by exercise, bedtime, body movement or posture changes, etc., work on the sewing position or the sewing area of the above-mentioned waterproof cloth, and for sanitary trousers In terms of the overall structure, it also pursues excellent adhesion and wearing touch.

In the Japanese Utility Model Registration Bulletin No. 2554676, it is disclosed that there are sanitary pants with the above creation. Figure 5(A)(B) is a front view and a back view showing the same type of sanitary pants as the above-mentioned bulletin.

The sanitary trousers shown in Fig. 5 consist of fabric 1a forming the front body part and crotch part, fabric 1b forming the central part of the back body part, and both sides forming the front body part and both sides of the back body part It is formed by fabrics 2 and 2. The above-mentioned fabrics 1a, 1b and fabric 2 have a tensile strength in the longitudinal direction which is lower than that in the transverse direction, and the tensile strength of the fabrics 1a and 1b in the longitudinal direction is higher than that of the fabric 2 High intensity.

[Problems to be solved by creation]

The above-mentioned conventional sanitary trousers for sanitary use change the tensile strength between the fabrics 1a, 1b located at the center of the transverse direction and the fabrics 2 located on both sides, so that the sanitary trousers as a whole are tightly attached to the body. However, although the sanitary pants are easy to adhere to the whole body, there is no effort to make them enter the lower buttocks along the shape of the body. That is, at the bottom of the hip, the sanitary pants are stretched forcibly in the lateral direction, and the central part of the sanitary napkin cannot be given a pressing force toward the body. Therefore, the sanitary napkin worn on the lower part of the buttocks cannot be deformed into a convex shape according to the shape of the body, and the function of sticking to the body is not fulfilled.

Here, the purpose of this creation is to provide a sanitary trousers for sanitary napkins that can make the sanitary napkin stick to the skin and will not shift, and further enable the sanitary napkin to be protrudingly attached to the body.

[Means to solve the problem]

The first creation of this creation is aimed at the front part, the back part, the lower part of the hip between the front part and the back part, and the upper edge of the front part and the back part. The waist formed by the upper edge, and a pair of leg openings under the joint formed on the side edges of the front body and the back The stretchable portion extending from the front body piece toward the lower hip portion and the longitudinal direction of the back body piece, and extending from both sides of the stretchable portion at least to the lower hip portion and the peripheral portion of the back body piece, the stretchable portion is in the The back body piece is formed in such a manner that the width dimension gradually becomes shorter from the waist part to the lower hip part. In the stretchable part, the elastic coefficient in the longitudinal direction is higher than the elastic coefficient in the width direction as a feature.

Preferably, an elastic member is provided on the waist portion, and the coefficient of elasticity in the longitudinal direction extending near at least the center line of the telescopic portion in the longitudinal direction is smaller than the elastic coefficient of the elastic member in the waist direction.

In addition, it is preferable that the peripheral portion is formed of a non-stretchable material, or a stretchable material whose elastic coefficients in the longitudinal direction and the transverse direction are smaller than those of the stretched portion.

The second creation of this creation is aimed at the front part, the back part, the lower part of the hip between the front part and the back part, and the upper edge of the front part and the back part. The waist portion formed by the upper edge portion, and a pair of leg openings underneath the junction between the side edges of the front body piece and the side edge of the back body piece are formed in the sanitary trousers for sanitary use with a pair of legs. The stretchable portion extending from the front body piece toward the lower hip and the longitudinal direction of the back body piece, and extending from both sides of the stretchable portion to at least the lower buttock portion and the peripheral portion of the back body piece, the stretchable portion is in the The back body piece is formed in such a way that the width dimension is gradually shortened from the waist part to the bottom of the hip. When it is worn or made into a three-dimensional shape that approximates the worn condition, the stretchable part shrinks in the longitudinal direction The stress is larger than the shrinkage stress in the width direction, which is the characteristic.

At this time, an elastic member is provided on the waist portion, and the contraction stress in the longitudinal direction extending at least near the center line of the longitudinal direction of the expansion and contraction portion is preferably smaller than the contraction stress in the waist direction of the elastic member. Furthermore, it is preferable that the peripheral portion is formed of a non-stretchable material, or a stretchable material whose contraction stress in the longitudinal direction and the lateral direction is smaller than that of the stretched portion.

In addition, in the first and second creations, the peripheral part is provided on both sides of the stretchable part from the front body and the lower part of the hip to the back body, and the leg opening may be formed by forming the peripheral part. The material is formed.

In the first creation, the elastic coefficient in the longitudinal direction of the expansion and contraction part is larger than the elastic coefficient in the lateral direction. Therefore, as in the second creation, the contraction stress in the longitudinal direction of the expansion part becomes larger, and the central part of the lower buttocks is tightened upward. Therefore, the center of the sanitary napkin becomes protruding and close to the body, and the adhesion to the body becomes higher, and it becomes less prone to omission. In addition, by making the tightening force of the elastic member at the waist part larger than the elastic coefficient and contraction stress in the longitudinal direction of the stretch part, the waist part becomes less likely to fall downwards during wearing.

[Implementation form of creation]

Refer to the drawings to explain the physiological sanitary pants of this creation as follows.

Figures 1 and 2 show the sanitary trousers of the first embodiment of this creation. Fig. 1(A) is a front view, Fig. 1(B) is a back view, and Fig. 2 is an expanded plan view.

The sanitary pants shown in Figs. 1 and 2 are composed of a front body piece 11, a back body piece 12, and a lower hip 13.

In Figures 1 and 2, the Y direction of the front body 11, the lower hip 13, and the back body 12 is the longitudinal direction, and the X direction perpendicular to this direction is the lateral direction. In the center of the transverse direction, the center line extending in the longitudinal direction is taken as O-0.

As shown in Figure 2, the side edge 11a of the front body piece 11 and the side edge 12a of the back body piece 12 are joined, and the edge 11b of the front body piece 11 and the side edge 12b of the back body piece 12 are joined to form Sanitary pants with waist 14 and leg openings 15, 15 are provided.

In the central area in the transverse direction of the sanitary pants, along the central line OO, there is provided a stretchable portion 16 extending in the longitudinal direction. The stretchable portion 16 is formed in the back body 12 so that the width dimension of the stretched portion 16 gradually decreases from the waist portion 14 toward the lower hip portion 13. In the front piece 11, the above-mentioned stretchable portion 16 is also formed in such a manner that the width dimension thereof gradually becomes shorter from the waist portion 14 to the lower hip portion 13.

Peripheral parts 17 and 17 are provided on both sides of the telescopic part 16. The stretchable portion 16 and the peripheral portions 17 and 17 are formed of different fabrics. The peripheral portions 17, 17 and the stretchable portion 16 may be stitched together at the boundary of each other, or the entire sanitary pants may be formed of the peripheral portion 17. It is formed, and the above-mentioned stretchable part 16 is overlapped on the center part and sewn together.

In the embodiment shown in FIG. 1 and FIG. 2, the peripheral portion 17 extends on both sides of the width direction of the expansion and contraction portion 16 on the front body piece 11, the back body piece 12, and the lower hip 13. The leg openings 15 and 15 are formed by the material forming the peripheral portion 17. In addition, at the waist portion 14, the stretchable portion 16 of the front body piece 11 and the stretchable portion 16 of the back body piece 12 are joined together, and the entire circumference of the waist is formed by the material of the stretchable portion 16. In addition, the material of the elastic portion 16 is not provided on the entire circumference of the waist, and the materials forming the peripheral portion 17 may also be joined to each other at the joints with the side edges 11a, 11b and the edge edges 12a, 12b.

In the above-mentioned waist part 14, a singular or plural strip-shaped or linear elastic members 21 are provided along the waist circumference to form a waist tightness part. Furthermore, in the leg openings 15 and 15, singular or plural strip-shaped or linear elastic members 22 and 22 are also provided along the leg openings to form leg openings.

The above-mentioned stretchable portion 16 is a woven fabric formed of stretchable fibers as a whole, or a woven fabric of elastic stretchable material such as rubber sewn in the longitudinal direction (Y direction) and the lateral direction (X direction). The elastic coefficient of the stretched portion 16 in the longitudinal direction is larger than the elastic coefficient in the transverse direction. That is, the stretchable material forming the stretchable portion 16 is cut so that the width dimension in the transverse direction becomes a predetermined width, and the shrinkage stress when a certain strain is applied in the longitudinal direction is compared with the width dimension in the longitudinal direction. When cut with the same predetermined width as described above, the shrinkage stress is large when the same constant strain as the above is applied to the transverse direction.

Therefore, when the sanitary pants are worn on the body or become a three-dimensional shape approximately when worn (when facing the longitudinal and lateral directions of the sanitary pants, the same stretch as when worn on the body is given). The shrinkage stress in the longitudinal direction of the portion 16 (the shrinkage tension per predetermined width dimension) is greater than the shrinkage stress in the transverse direction.

The stretchable portion 16 is continuous in the longitudinal direction of the front body piece 11, the back body piece 12, and the lower hip portion 13. The shape of the stretchable portion 16 is tapered at the lowermost end Oy of the lower hip portion 13. Therefore, when worn on the body, the contraction stress in the lengthwise direction of the stretched part 16 blocking the lower buttocks 13 is, for example, about 1.5 times or more and 8 times or less than the contraction stress in the lateral direction. Therefore, when a sanitary napkin is attached to the inner side of the sanitary trousers at the lower hip 13, the sanitary napkin will be given a strong pressing pressure along the center line O-O.

In addition, as shown in Figure 1(B), when the sanitary pants are formed into a three-dimensional shape, the width of the stretchable portion 16 is reduced in the height range from the lowermost end Oy of the lower hip 13 to the height of H1 on the back body 12 , So this part will enter the crotch of the buttocks, at the lower part of the buttocks 13, the stretchable part 16 itself will become easy to adhere to the body. Therefore, the sanitary napkin attached to the crotch is tightly attached to the body, and due to the tension along the above-mentioned center line O-O, the central part of the width direction of the sanitary napkin will be deformed into a convex shape, that is , Deformed to match the depression of the thigh. Therefore, the adhesion between the sanitary napkin and the crotch becomes better, and the side leakage of menstrual blood is less likely to occur, and the displacement of the sanitary napkin is less likely to occur.

When the sanitary pants are worn on the body, the stretchable portion 16 is stretched in the transverse direction, but even if this stretch occurs, the difference in the elastic coefficient can generate a large contraction stress in the longitudinal direction, as described above , Can exert the tension along the center line O-O. That is, even if it is stretched in the lateral direction during wearing, the stretchable portion 16 can expand and contract relatively freely in the lateral direction, and since it can exert a strong contraction force in the longitudinal direction at any time, it can be worn on the lower part of the buttocks. Sanitary napkins for sanitary use are worn on the body with the tension along the center line O-O in a state of being lifted upwards.

In addition, the waist 14 is provided with an elastic member 21 forming a waist tightness. Compared with the shrinkage stress of the elastic member 21 toward the waist circumference direction, it is desirable that the elastic coefficient in the longitudinal direction at least near the center line OO is smaller. As shown in Fig. 1, in the wearing state or making it into an approximate three-dimensional shape, compared with the contraction stress of the elastic member 21, the lengthwise direction near the center line OO of the stretchable portion 16 It is ideal that the shrinkage stress is small.

When configured in this way, the waist 14 will not be largely pulled down toward the hip downward direction due to the contraction force of the stretchable part 16 during wearing, and the sanitary pants will not easily fall down during wearing. In addition, when the elastic members 21 are singular or plural, the above-mentioned elastic coefficient is a value that matches all the elastic members 21 of the single application strip and the multiple application strip. In addition, the above-mentioned contraction stress means the contraction tension when all the elastic members 21 of a single or plural strips are subjected to a predetermined strain, and the expansion and contraction portion 16 is made to be the same as the width dimension of the above-mentioned singular or plural elastic members 21. Comparison of contraction tension when subjected to the same strain as the elastic member 21 in the longitudinal direction.

Secondly, it is desirable that the peripheral portion 17 at the lower part of the hip does not impart a strong tensile force to the stretched portion 16 in the lateral direction. If a strong tensile force is applied to the lower part of the buttocks in the transverse direction, the central part of the sanitary napkin is pressed against the body by the tension along the heart line O-O, along the central line O _－ The tension of O will decrease, and the sanitary napkin will not be easily deformed into a convex shape, and it will not be easy to adhere to the body.

In addition, the peripheral portion 17 is preferably one that does not exert a strong contraction force in the longitudinal direction compared to the expansion and contraction portion 16. When wearing, if the peripheral portion 17 exerts a strong contraction force in the longitudinal direction, the both sides of the waist portion 14, which is equivalent to the waist bone portion, will be pulled down and become easy to slide down.

From the above, it is preferable that the peripheral portion 17 is made of a non-stretchable material, or even if it expands or contracts, the amount of extension (maximum strain) is smaller than that of the expansion and contraction portion 16. That is, the extension during wearing is mainly from the stretchable portion 16, and the peripheral portion 17 hardly stretches. The above-mentioned difference in stress between the longitudinal direction and the transverse direction is ideally mainly due to the stretchable portion 16 being exerted. Alternatively, when the peripheral portion 17 is formed of a stretchable material, the stretchable material is extremely easy to extend, and it is preferable that the elastic coefficients in the longitudinal direction and the lateral direction are smaller than the stretchable portion 16 described above. At this time, although the peripheral portion 17 is also extended when worn on the body, the stress caused by the extension is small and does not hinder the strong contraction stress of the stretchable portion 16 in the longitudinal direction.

Figures 3 and 4 show the sanitary trousers of the second embodiment of this creation. Figure 3(A) is a front view, Figure 3(B) is a back view, and Figure 4 is an expanded plan view. .

The sanitary trousers shown in Figs. 3 and 4 are provided with a stretchable portion 16 having substantially the same shape as those shown in Figs. 1 and 2. The elastic modulus and contraction stress in the longitudinal direction and the transverse direction of the stretchable portion 16 are the same as those of the first embodiment described above.

In the embodiment shown in FIGS. 3 and 4, a peripheral portion 27 made of the same material as the peripheral portion 17 shown in FIG. 1 is provided, and the peripheral portion 27 extends from both sides of the telescopic portion 16. However, as shown in Figures 3 and 4, the peripheral portion 27 is only provided near the boundary between the front body 11 and the lower hip 13 and on both sides of the lower hip 13 to the stretchable portion of the back body 12. In the areas on both sides of 16, there is no peripheral part 27 on the front piece 11.

As shown in Figure 3, the sanitary trousers in the formed state are located at both ends of the width direction of the above-mentioned stretchable portion 16 of the front body piece 11 and two of the width direction of the above-mentioned stretchable portion 16 of the back body piece 12 The ends are joined, and the material constituting the above-mentioned stretchable portion 16 is connected to the entire circumference of the waist portion 14.

In addition, elastic members 21 and 22 are provided on the waist 14 and the leg opening 15.

The stretchable portion 16, waist portion 14, and peripheral portion 27 of the sanitary sanitary pants shown in Figs. 3 and 4 are stretchable materials having the same characteristics as the sanitary sanitary pants shown in Figs. 1 and 2. The sanitary napkin placed on the bottom 13 of the buttocks is firmly attached to the body.

[The effect of creation]

With the sanitary trousers formed of the material described above, the central part of the sanitary napkin is convex, and it is surely pressed against the body.

In this state, the sanitary napkin that is close to the body is not easy to shift in the lateral direction, and it is not easy to cause the side leakage of the menstrual blood of the sanitary napkin and can prevent the side leakage of the menstrual blood of the sanitary trousers.

Schematic description

Figure 1 is (A) (B) the front view and the back view of the sanitary pants of the first embodiment of this creation.

Figure 2 is an expanded view of the sanitary pants shown in Figure 1.

Figure 3 is (A) (B) the front view and the back view of the sanitary pants of the second embodiment of this creation.

Figure 4 is an expanded view of the sanitary pants shown in Figure 3.

Figure 5 is a front view and a back view of (A) (B) conventional sanitary pants.

Symbol description of main components

11. . . Predecessor

12. . . Back piece

13. . . Lower hip

14. . . Waist

15. . . Leg opening

16. . . Telescopic part

17. . . Peripheral

27. . . Peripheral

twenty one. . . Waist elastic member