Absorbent pad and shorts with absorbent pad
The absorbent pad with a mountain-shaped or arch-shaped design and a columnar portion effectively addresses the challenges of adherence and absorption in conventional sanitary napkins, ensuring efficient liquid management and close body contact.
Patent Information
- Application Number
- JP2023164197
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-27
- Publication Date
- 2025-04-08
AI Technical Summary
Conventional sanitary napkins face challenges in adhering closely to the wearer's body and efficiently absorbing liquids like menstrual blood.
The design features a built-in absorbent pad with a mountain-shaped or arch-shaped cross section that fits closely to the wearer's crotch, incorporating a columnar portion for enhanced absorption and a wide rear end that bends to conform to the body shape.
This configuration ensures efficient absorption of liquids by maintaining close contact with the body and preventing leakage, while the columnar portion aids in distributing liquids evenly across the pad.
Smart Images

Figure 2025054944000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to an absorbent pad and shorts with an absorbent pad. [Background technology]
[0002] Conventionally, sanitary napkins have been known that are shaped to fit the shape of the wearer's crotch and buttocks, as described in, for example, Patent Documents 1 and 2. For example, the napkin described in Patent Document 1 is raised in a mountain shape from end to end along the center line in the longitudinal direction, and the cross section perpendicular to the longitudinal direction has a curved shape from the center to both ends, and is also curved in the longitudinal direction. For example, a napkin with the above shape is made by putting gathers (center gathers) along the center line in the longitudinal direction.
[0003] In the napkin described in Patent Document 2, the absorbent body and the surface member covering it are divided into two. The two surface members are adhered (joined) to each other at the front and rear ends in the longitudinal direction, and are not joined (unjoined) between the front and rear ends. A recess (spot absorption part) between the front and rear ends absorbs the wearer's excrement, thereby preventing the excrement from spreading. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] JP 2001-224626 A [Patent Document 2] Japanese Utility Model Application Publication No. 4-128728 Summary of the Invention [Problem to be solved by the invention]
[0005] Although the conventional napkins described above take into consideration the shape of the wearer's body, it is difficult to ensure that they fit the wearer's body sufficiently when in use, and there is room for improvement in the efficiency of absorbing liquids such as menstrual blood.
[0006] An object of the present invention is to provide an absorbent pad and shorts with an absorbent pad that can fit closely to the body when worn and efficiently absorb liquids such as menstrual blood. [Means for solving the problem]
[0007] [1] One aspect of the present invention is an absorbent pad that extends long in the front-to-rear direction and has a predetermined width in the left-to-right direction, has an absorbent body built in between a first surface that is positioned on the wearer's body side and a second surface that is positioned opposite the first surface, and is stored in a storage pocket provided in the crotch portion of a shorts body, and has a bulge portion provided on the first surface side toward the front in the front-to-rear direction, and the bulge portion is mountain-shaped or arch-shaped in a cross section perpendicular to the front-to-rear line and is arch-shaped in a cross section perpendicular to the left-to-right line.
[0008] The absorbent pad [1] is applied to the wearer's crotch (the area from the vagina to the intergluteal cleft) when the shorts are worn. The bulging portion provided on the first surface side is mountain-shaped or arch-shaped in a cross section perpendicular to the front-to-back line, and arch-shaped in a cross section perpendicular to the left-to-right line, so that it fits closely to the wearer's body, i.e., the crotch. This allows the pad to efficiently absorb liquids such as menstrual blood.
[0009] [2] In the absorbent pad of [1] above, the bulge may be formed by a left part and a right part each including at least an absorbent body, the joining edge of the left part and the joining edge of the right part each having a predetermined cut shape, and the bulge may be formed by a part of the left part and a part of the right part assuming a three-dimensional shape after joining the pair of joining edges. With this configuration, the bulge can be reliably and easily formed by the two parts including the absorbent body (without sandwiching any other member).
[0010] [3] In the absorbent pad of [1] or [2] above, the bulge may include a columnar portion extending in the front-rear direction, and the columnar portion may be disposed directly below the peak of the mountain or arch in a cross section perpendicular to the front-rear direction. With this configuration, the columnar portion is more likely to absorb liquids such as menstrual blood. Furthermore, it is expected that liquids such as menstrual blood will move down the columnar portion to the lower layer. As a result, efficient absorption is achieved throughout the absorbent pad.
[0011] [4] Any one of the absorbent pads [1] to [3] above is disposed adjacent to the rear side of the pad main body including the bulging portion, and further includes a wide rear end portion whose width in the left-right direction is wider than the bulging portion, and the wide rear end portion may be bent relative to the pad main body after joining the rear edge portion and the front edge portion by having at least one of the rear edge portion of the part on the first surface side of the pad main body and the front edge portion of the part on the first surface side of the wide rear end portion have a cut shape that is concavely curved. According to this configuration, the wide rear end portion is bent relative to the pad main body, so that the absorbent pad can easily conform to the wearer's body regardless of the configuration and shape of the shorts main body. For example, the absorbent pad can be made to conform to the body even in a shorts main body that does not have a center seam and has a relatively weak force to conform to the buttocks.
[0012] [5] In the absorbent pad according to any one of the above [1] to [4], the pad body including the bulge may have a tapered shape in which the width in the left-right direction narrows toward the front end. This configuration makes it easy to insert the pad body into the storage pocket of the shorts body.
[0013] [6] In another aspect of the present invention, shorts with absorbent pads may be provided, comprising a shorts body to be worn by a wearer and provided with a storage pocket in the crotch area, and an absorbent pad according to any one of the above [1] to [5] stored in the storage pocket of the shorts body. This shorts with absorbent pads can efficiently absorb liquids such as menstrual blood through the fabric of the storage pocket on the body side. Effect of the Invention
[0014] According to the present invention, the absorbent pad is in close contact with the wearer's body, thereby enabling efficient absorption of liquids such as menstrual blood. [Brief description of the drawings]
[0015] [Figure 1] FIG. 1 is a front view of shorts with absorbent pads according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a rear view of the shorts with absorbent pads of FIG. [Diagram 3] FIG. 3 is a diagram showing the loose state of each piece of fabric at the front of the crotch portion of the shorts body. [Figure 4] FIG. 4 is a diagram showing the loose state of each piece of fabric at the rear crotch portion of the shorts body. [Diagram 5] FIG. 5 is a perspective view of an absorbent pad according to one embodiment of the present invention. [Figure 6] FIG. 6 is a plan view of the absorbent pad of FIG. [Figure 7] FIG. 7 is an exploded perspective view showing each part constituting the absorbent pad of FIG. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. [Figure 10] FIG. 10 is a diagram showing how an absorbent pad is inserted into a storage pocket of the inside-out shorts body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated descriptions will be omitted. In some drawings, the mutually orthogonal X direction (left-right direction) and Y direction (front-back direction) are also shown. In this specification, terms indicating directions such as "front", "back", "left", and "right" are terms based on the wearer wearing the absorbent padded shorts 1.
[0017] 1 and 2, the shorts 1 with absorbent pads of this embodiment include a shorts body 2 to be worn by a wearer and having a storage pocket 40 in a crotch portion 6, and an absorbent pad 20 stored in the storage pocket 40 of the shorts body 2. In the following description, the shorts 1 with absorbent pads may be simply referred to as shorts 1.
[0018] The configuration of a shorts body 2 to which the absorbent pad 20 of this embodiment is applied will be described with reference to Figs. 1 to 4. The shorts body 2 is made of, for example, a stretchable main body fabric. A front body portion 3 and a back body portion 4 are joined to each other at their left and right ends by sewing or the like to form a tube. The height (depth) of the waist portion 2a and the height (position) of the leg opening portions 2b, 2b may be set or changed as appropriate. The shorts body 2 has a crotch portion 6 that covers the crotch of the wearer. The shorts body 2 has a crotch structure 7 on the inner side (skin side or wearer's body side) of the crotch portion 6. The crotch structure 7 is provided with a storage pocket 40 for storing the absorbent pad 20 of this embodiment.
[0019] 1 and 2, the crotch structure 7 is attached to the inner surface of the fabric of the crotch portion 6 in order to house an absorbent pad 20 for absorbing menstrual blood and the like. The crotch structure 7 is fixed by fixing edges 11, 11 attached along the front and gusseted hem of the leg openings 2b. The crotch structure 7 is provided in the area covering the wearer's crotch, from a front edge 12 located near the wearer's lower abdomen to a rear edge 13 located near the lower part of the wearer's buttocks.
[0020] In Fig. 3 and Fig. 4, the shorts body 2 is cut at the left and right sides and the bottom end, and only a part of the shorts body 2 is shown. Fig. 3 shows the front body 3 to the bottom end of the shorts body 2, and Fig. 4 shows the back body 4 to the bottom end of the shorts body 2. The crotch structure 7 includes a first waterproof fabric 15, a second waterproof fabric 16, and a water-absorbent fabric 17, in order of proximity to the fabric of the crotch 6. A space S is formed between the crotch 6 and the first waterproof fabric 15, which overlaps the crotch 6 in a loose state (except for the left and right fixed edges 11), and penetrates from the front edge 12 to the rear edge 13. In other words, the crotch structure 7 is loose from the crotch 6 in a range except for the fixed edges 11 located at the left and right ends, forming a tunnel-like structure.
[0021] The material constituting the first waterproof fabric 15 and the second waterproof fabric 16 is preferably waterproof and moisture permeable. Examples of such materials include polyester, polyurethane film laminate, polyurethane, polyethylene, polyvinyl chloride, and other films. The first waterproof fabric 15 and the second waterproof fabric 16 may be the same fabric, or may be different fabrics. The water-absorbent fabric 17 is, for example, a water-absorbing and diffusing fabric. The material constituting the water-absorbent fabric 17 is preferably highly liquid permeable to allow liquid to pass through the underlying absorbent material. Examples of such materials include mesh sheets, and polyester mesh sheets are particularly preferred.
[0022] The skin-side layer of the storage pocket 40 is not limited to being made of only the water-absorbent fabric 17, and may have a double structure. In this case, an antibacterial waterproof fabric is provided on the lower layer side of the water-absorbent fabric 17. Depending on the functions required of the shorts 1, the skin-side layer of the storage pocket 40 may have an additional fabric layer (may be three or more layers).
[0023] Furthermore, the absorbent fabric 17 is not limited to fabrics with water absorption and diffusion functions. Any fabric that has the property of allowing moisture to pass through can be used as the absorbent fabric 17. Therefore, the absorbent fabric 17 may be called, for example, the "top layer fabric" or the "skin side fabric" (of the crotch structure 7).
[0024] The width of the second waterproof fabric 16 and the water absorbent fabric 17 in the left-right direction is, for example, slightly smaller than the width of the first waterproof fabric 15 in the left-right direction (equal to the width of the crotch portion 6). The second waterproof fabric 16 and the water absorbent fabric 17 are free from each other in a range excluding the left and right edges and the position of the front edge portion 12 which is the front edge. The second waterproof fabric 16 and the water absorbent fabric 17 open at a pad insertion opening 41 formed in a position close to the rear edge portion 13. The second waterproof fabric 16 and the water absorbent fabric 17 sewn together at three sides, the left and right edges and the front edge, form a storage pocket 40 in a drum shape in a plan view when the crotch structure 7 is laid flat (see also FIG. 10). The second waterproof fabric 16 and the water absorbent fabric 17 thus integrated are free from the first waterproof fabric 15 in a range excluding the front edge portion 12 and the rear edge portion 13.
[0025] 1 and 3, a front end waterproof fabric 14 extending in the left-right direction is provided between the front end edge 12 and the water absorbent fabric 17. Also, as shown in Figures 2 and 4, a rear end waterproof fabric 18 extending in the left-right direction is provided between the rear end edge 13 and the water absorbent fabric 17. The front end waterproof fabric 14 and the rear end waterproof fabric 18 each prevent liquids such as menstrual blood from seeping out (or leaking out) from the crotch structure 7 into the shorts body 2.
[0026] As shown in Figs. 1, 2 and 10, the shape and size of the storage pocket 40 are set so as to be able to store all or most of the absorbent pad 20, and the storage pocket 40 is one size larger than the absorbent pad 20. The width of the rear end of the storage pocket 40 is the largest in the entire storage pocket 40. The absorbent pad 20 is held by the user (wearer) and inserted into the storage pocket 40 through the pad insertion opening 41. As shown in Fig. 2, the edge of the wide rear end 26 of the absorbent pad 20 protrudes outward from the position of the pad insertion opening 41. A cover fabric 19 (see Fig. 4) is provided that extends from the boundary between the rear end waterproof fabric 18 and the second waterproof fabric 16 into the storage pocket 40 by a length of about several centimeters. The cover fabric 19 is, for example, sewn to the rear end waterproof fabric 18 and the second waterproof fabric 16 at the boundary between these fabrics. The cover fabric 19 covers the edge of the wide rear end 26, preventing the edge from protruding outward. With this structure, the wide rear end 26 of the absorbent pad 20 is positioned to be contained between the cover fabric 19 , the water-absorbent fabric 17 and the second waterproof fabric 16 .
[0027] The structure of the crotch structure 7 or the configuration of the storage pocket 40 is not limited to the above, and may be appropriately changed as long as the absorbent pad 20 can be stored therein.
[0028] Next, the absorbent pad 20 will be described with reference to Figs. 5 and 6 and the subsequent figures. As shown in Figs. 5 and 6, the absorbent pad 20 includes a pad main body 23 having a rocket shape in a plan view, and a flat wide rear end portion 26 arranged adjacent to the rear side of the pad main body 23. Figs. 5 and 6 show the absorbent pad 20 laid flat. The absorbent pad 20 is made of a flexible fabric and is deformable. The absorbent pad 20 is stored in a storage pocket 40 of the shorts main body 2, and is placed on the wearer's body (specifically, the crotch) side when the shorts 1 are worn by the wearer. In the description of this specification, unless otherwise specified, the absorbent pad 20 will be described in its natural state (the state shown in Fig. 5) in which it extends flat along the front-rear direction, i.e., the Y direction, and the left-right direction, i.e., the X direction.
[0029] The absorbent pad 20 extends long in the front-rear direction and has a certain width in the left-right direction. When the absorbent pad 20 is attached to the shorts body 2, the first surface 21 abuts against the absorbent fabric 17, and the second surface 22 opposite to the first surface 21 abuts against the second waterproof fabric 16 (see Figs. 3 and 4). The first surface 21 faces the wearer's crotch (the region from the vaginal region to the intergluteal cleft) through the absorbent fabric 17. As shown in Figs. 5 and 9, the second surface 22 of the absorbent pad 20 extends in a substantially planar shape (substantially parallel to the XY plane), whereas the first surface 21 has a three-dimensional shape (particularly in the region corresponding to the pad body 23). An absorbent body is built between the first surface 21 and the second surface 22, thereby ensuring the absorption (retention) amount of liquid such as menstrual blood in the absorbent pad 20.
[0030] 5 and 6, the pad main body 23 has a tapered shape in which the width in the left-right direction (X direction) narrows toward the tip (front end) 23a. The tip 23a is, for example, pointed. The tip 23a may be rounded. On the other hand, the width in the left-right direction of the wide rear end 26 is wider than the width (maximum width) of the pad main body 23.
[0031] The absorbent pad 20 has a bulge 30 provided on the first surface 21 at a position closer to the front in the front-rear direction (Y direction). The bulge 30 extends long in the front-rear direction. The bulge 30 has a shape, for example, like the bottom of a boat. "At a position closer to the front in the front-rear direction" means that, in a plan view (see FIG. 6), the length from the front end 30a of the bulge 30 to the tip 23a of the pad body 23 is shorter than the length from the rear end 30b of the bulge 30 to the rear end of the wide rear end 26. In the entire absorbent pad 20, the bulge 30 is disposed at a position closer to the tip 23a. The width of the wide rear end 26 in the left-right direction is wider than the width (maximum width) of the bulge 30.
[0032] As shown in FIG. 7, the absorbent pad 20 has a structure in which a plurality of fabrics are laminated. In this order from the second surface 22 side (see FIG. 9), a waterproof fabric 55, a base absorbent fabric 54 and a rear absorbent fabric 56, a left absorbent fabric 53L and a right absorbent fabric 53R, and a left surface fabric 52L, a right surface fabric 52R and a rear surface fabric 57 are laminated. The waterproof fabric 55 is preferably waterproof and moisture permeable. Examples of such materials include polyester, polyurethane film laminate, polyurethane, polyethylene, polyvinyl chloride films, and the like. The waterproof fabric 55 constitutes the second surface 22. The base absorbent fabric 54, the rear absorbent fabric 56, the left absorbent fabric 53L, and the right absorbent fabric 53R are made of materials having liquid absorption, liquid diffusion, and liquid conservation properties, such as nonwoven fabrics made of cotton, acrylic, polyester, and the like. The base absorbent fabric 54, the rear absorbent fabric 56, the left absorbent fabric 53L and the right absorbent fabric 53R are absorbent bodies, and have excellent performance in absorbing liquids such as menstrual blood.
[0033] The bulging portion 30 is formed by a left part 51L consisting of a left surface fabric 52L and a left absorbent fabric 53L, and a right part 51R consisting of a right surface fabric 52R and a right absorbent fabric 53R. The left surface fabric 52L and the left absorbent fabric 53L have similar shapes in a plan view, but the left absorbent fabric 53L is slightly shorter in the front-rear direction than the left surface fabric 52L. The right surface fabric 52R and the right absorbent fabric 53R have similar shapes in a plan view, but the right absorbent fabric 53R is slightly shorter than the right surface fabric 52R. The left and right fabrics are symmetrical with respect to a virtual vertical plane that is perpendicular to the left-right direction (X direction) and is located at the center position in the left-right direction.
[0034] As shown in FIG. 7, in the left part 51L, the joining edge 52e of the left outer surface fabric 52L and the joining edge 53e of the left absorbent fabric 53L are aligned when the two fabrics are overlapped. In the right part 51R, the joining edge 52e of the right outer surface fabric 52R and the joining edge 53e of the right absorbent fabric 53R are aligned when the two fabrics are overlapped. The joining edges 52e, 53e of the left part 51L and the joining edges 52e, 53e of the right part 51R each have a predetermined cut shape. More specifically, the joining edges 52e, 53e of the left part 51L and the joining edges 52e, 53e of the right part 51R each have a bulging shape (a rounded bulging shape that approaches each other). The joining edges 52e, 53e of the left part 51L and the joining edges 52e, 53e of the right part 51R are sewn (joined) along a seam line extending in the front-rear direction slightly inside these edges. After the left part 51L and the right part 51R are sewn (joined), a part of the left part 51L and a part of the right part 51R assume a three-dimensional shape, thereby forming a bulging portion 30. In other words, the bulging portion 30 is formed after sewing by the pattern (dart) shape of the joining edges 52e, 53e of the left part 51L and the pattern (dart) shape of the joining edges 52e, 53e of the right part 51R.
[0035] As shown in Fig. 8, the left part 51L and the right part 51R, the base absorbent fabric 54, and the front part 55a of the waterproof fabric 55 are sewn together at positions along the outer periphery. Fig. 8 shows the left seamed part 23Ls and the right seamed part 23Rs. Although not shown, the rear surface fabric 57, the rear absorbent fabric 56, and the rear part 55b of the waterproof fabric 55 are sewn together at positions along the outer periphery. In addition, the rear edge part 52f of the left surface fabric 52L and the rear edge part 53f of the left absorbent fabric 53L in the left part 51L are sewn together with the left half of the front edge part 57a of the rear surface fabric 57 and the left half of the front edge part 56a of the rear absorbent fabric 56. The rear edge 52f of the right surface fabric 52R and the rear edge 53f of the right absorbent fabric 53R of the right part 51R are sewn together with the right half of the front edge 57a of the rear surface fabric 57 and the right half of the front edge 56a of the rear absorbent fabric 56.
[0036] As shown in Figs. 5 and 6, the bulging portion 30 has a front bulging portion 34 disposed at the front side and a rear bulging portion 36 disposed at the rear side. The front bulging portion 34 and the rear bulging portion 36 form the above-mentioned bottom shape. The front bulging portion 34 is formed with a pair of left and right front both-side seams 32 as a boundary. That is, the front bulging portion 34 of the bulging portion 30 is provided between the pair of left and right front both-side seams 32 (see also Fig. 8). The absorbent pad 20 has rear both-side seams 42 connected to the front both-side seams 32. As shown in Fig. 8, the left and right front both-side seams 32 and the rear both-side seams 42 sew a triple structure (three-layer structure) excluding the waterproof fabric 55. The pair of rear both-side seams 42 extend to the left and right (away from each other) and terminate at the boundary between the pad main body 23 and the wide rear end portion 26. The rear bulge 36 of the bulge 30 is formed not by the rear two-side seams 42 but by a pair of bulge boundary lines 33 located on the inside (closer to the apex 31) of the rear two-side seams 42. The bulge boundary lines 33 are not stitched parts. The bulge boundary lines 33 are formed naturally by the three-dimensional formation of the pad main body 23 and the joining of the wide rear end 26.
[0037] A pair of triangular lateral protruding surfaces 43 are formed outside the pair of bulging boundary lines 33, i.e., between the bulging boundary lines 33 and the rear two-sided seams 42. The lateral protruding surfaces 43 are slightly inclined so as to increase in thickness from the rear two-sided seams 42 toward the rear bulging portion 36, but are relatively flat compared to the rear bulging portion 36.
[0038] The bulge 30 includes an apex 31 that is raised higher than the base absorbent fabric 54 and extends in the front-rear direction (perpendicular to the paper surface of FIG. 8) at the center position between the left seamed portion 23Ls and the right seamed portion 23Rs. The apex 31 extends linearly in a plan view (see FIG. 6). In the front bulge 34, the apex 31 is located in the center of the pair of front both-side seamed portions 32. In the rear bulge 36, the apex 31 is located in the center of the pair of rear both-side seamed portions 42 and in the center of the pair of bulge boundary lines 33. The apex 31 is formed with an apex seam 31s that extends in the front-rear direction. A pair of joining edges 52e, 52e and a pair of joining edges 53e, 53e hang down below the apex seam 31s. 8 and 9, a pair of joining edges 52e, 52e and a pair of joining edges 53e, 53e form a columnar portion A extending in the front-rear direction. In other words, the bulging portion 30 includes a columnar portion A extending in the front-rear direction.
[0039] As shown in FIG. 8, the bulging portion 30 has a mountain shape or an arch shape in a cross section perpendicular to the front-rear direction. The mountain shape is a shape consisting of a pair of straight lines (or curves close to straight lines) and a top 31 where the oblique lines intersect. The arch shape is a shape including a gently curved (for example, arc-shaped) oblique line, and the top 31 located in the center is curved or flat. When the left and right inclined surfaces are curved so as to be convex upward (towards the first surface side) as shown in FIG. 8, the bulging portion 30 can be said to have an arch shape in a cross section perpendicular to the front-rear direction. Alternatively, when the left and right inclined surfaces are linear or curved so as to be concave upward (towards the first surface side), the bulging portion 30 can be said to have a mountain shape in a cross section perpendicular to the front-rear direction. In the mountain shape, the top may be pointed or rounded. The columnar portion A is disposed directly below the mountain-shaped or arch-shaped top 31 in a cross section perpendicular to the front-rear direction line.
[0040] As shown in FIG. 9, the bulge 30 is arch-shaped in a cross section perpendicular to the left-right line. In FIG. 9, the boundary surface between a pair of joint edges 52e, 52e and a pair of joint edges 53e, 53e is shown. The columnar portion A and the apex 31 (apex seam 31s) extend in an arch shape in the front-rear direction. In this specification, the definition of "arch-shaped" is as described above. The meaning of "arch-shaped" is different from "mountain shape" and also different from a wavy shape (wave shape). As shown in FIG. 9, in a cross section perpendicular to the left-right line, the upper surface of the bulge 30 (the surface corresponding to the apex 31 from the front bulge 34 to the rear bulge 36) may be flat, or the upper surface may be curved so as to be convex upward.
[0041] At least one of the rear edge 52f of the left surface fabric 52L and the rear edge 53f of the left absorbent fabric 53L in the left part 51L (the rear edge of the part on the first surface 21 side of the pad main body 23) and the left half of the front edge 57a of the rear surface fabric 57 and the left half of the front edge 56a of the rear absorbent fabric 56 (the front edge of the part on the first surface 21 side of the wide rear end 26) has a concavely curved cut shape, and the other has a straight cut shape. Similarly, at least one of the rear edge 52f of the right surface fabric 52R and the rear edge 53f of the right absorbent fabric 53R in the right part 51R (the rear edge of the part on the first surface 21 side of the pad body 23) and the right half of the front edge 57a of the rear surface fabric 57 and the right half of the front edge 56a of the rear absorbent fabric 56 (the front edge of the part on the first surface 21 side of the wide rear end 26) has a concavely curved cut shape, and the other has a straight cut shape. In this embodiment, the rear edges 52f, 53f of the left part 51L and the rear edges 52f, 53f of the right part 51R have a concave arc pattern (dart) shape. The front edge 57a of the rear surface fabric 57 and the front edge 56a of the rear absorbent fabric 56 have a straight shape.
[0042] After the rear edges 52f, 53f of the left part 51L and the rear edges 52f, 53f of the right part 51R are joined to the front edge 57a of the rear surface fabric 57 and the front edge 56a of the rear absorbent fabric 56, the wide rear end 26 is bent relative to the pad main body 23 (see FIG. 9). As shown in FIG. 5 and FIG. 9, the wide rear end 26 rises above the plane on which the pad main body 23 is placed (the plane defined by the waterproof fabric 55), with the rear seam 26s as the boundary line. The angle of the wide rear end 26 with respect to the plane may be, for example, less than 20° or less than 10°.
[0043] The absorbent pad 20 of the present embodiment described above is inserted into the storage pocket 40 of the shorts body 2 with, for example, the wide rear end 26 held as shown in FIG. 10. The tapered pad body 23 can be easily inserted into the storage pocket 40 by, for example, inserting the tip 23a into the pad insertion opening 41. When the absorbent pad 20 is pushed into the storage pocket 40, the position of the peripheral edge of the absorbent pad 20 is determined to some extent within the storage pocket 40. The absorbent pad 20 is attached in a position in which the top 31 coincides with the front-rear direction of the shorts body 2. The size and shape of the storage pocket 40 are appropriately set so that the position of the absorbent pad 20 can be maintained to some extent (and the absorbent pad 20 can be easily inserted). Furthermore, according to the shorts 1 of the present embodiment, liquids such as menstrual blood can be efficiently absorbed through the absorbent fabric 17, which is the fabric of the storage pocket 40 on the body side.
[0044] The absorbent pad 20 of this embodiment is applied to the crotch region (the region from the vagina to the intergluteal cleft) of the wearer when the shorts 1 are worn. The bulging portion 30 provided on the first surface 21 side is mountain-shaped or arch-shaped in a cross section perpendicular to the front-rear line, and arch-shaped in a cross section perpendicular to the left-right line, so that it adheres closely to the wearer's body, i.e., the crotch region. This allows liquids such as menstrual blood to be absorbed efficiently.
[0045] The joining edges 52e, 53e having a predetermined cut shape are sewn together to form the bulging portion 30. That is, the bulging portion 30 can be reliably and easily formed by the left part 51L and the right part 51R (without sandwiching any other members). In addition, when the left part 51L and the right part 51R are sewn together, liquid such as menstrual blood flows downward through the pinhole of the top sewn portion 31s and is dispersed.
[0046] The columnar portion A is disposed directly below the mountain-shaped or arch-shaped apex 31 in the cross section perpendicular to the front-rear direction line. This allows the columnar portion A to easily absorb liquids such as menstrual blood. Furthermore, it is expected that liquids such as menstrual blood will move along the columnar portion A to the lower layer (towards the base absorbent fabric 54). As a result, efficient absorption is achieved throughout the absorbent pad 20.
[0047] In addition, the columnar portion A provides a certain strength to the bulging portion 30, so deformation due to movement can be reduced, and as a result, the bulging portion 30 fits the body, so absorption efficiency can be maintained. Furthermore, the upper absorbent fabric (left absorbent fabric 53L and right absorbent fabric 53R) and the base absorbent fabric (base absorbent fabric 54) ensure the absorption amount of menstrual blood. The space between the upper absorbent fabric and the base absorbent fabric (particularly, both left and right sides of the columnar portion A) can also be expected to have the effect of retaining menstrual blood. The water retention effect is a phenomenon in which menstrual blood temporarily accumulates around the space on both the left and right sides of the columnar portion A. The menstrual blood does not continue to accumulate, but falls into the base absorbent fabric below. The napkins described in the above Patent Document 1 do not have the columnar portion A, the layered structure made of multiple absorbent fabrics, and the spaces on both the left and right sides of the columnar portion A in this embodiment. Due to such structural differences, the absorption efficiency of menstrual blood in the napkins described in the above Patent Document 1 has to depend on the type and performance of the material used. In addition, the absorbent pad 20 of the present embodiment can easily change shape due to body movements, and may not be able to move with the body and efficiently absorb menstrual blood.
[0048] In addition, the columnar portion A formed by the left absorbent fabric 53L and the right absorbent fabric 53R (upper absorbent fabric) gives a certain strength to the bulging portion 30, so deformation due to movement can be reduced and it fits the body, so absorption efficiency can be maintained. Since the absorbent pad 20 is assumed to be used by being placed in the storage pocket 40, it needs to be raised even through the pocket of the crotch portion 6, and stability of the shape is important. In addition, the wide rear end portion 26 is bent with respect to the pad main body portion 23. This makes it easy for the absorbent pad 20 to conform to the wearer's body regardless of the configuration and shape of the shorts main body 2. For example, as shown in FIG. 2, the absorbent pad 20 can be made to conform to the body even in the shorts main body 2 that does not have a center seam and has a relatively weak force to conform to the buttocks. The wide rear end portion 26, which is a rising portion, can absorb menstrual blood even if it flows toward the buttocks (i.e., it can prevent rear leakage). When the shorts 1 are worn, the rear bulge 36 enters the gluteal cleft, and the seam (rear seam 26s) of the wide rear end 26 is also deformed to be drawn toward the gluteal cleft, so that the wide rear end 26 is shaped to fit the buttocks more closely. More specifically, when worn, the rear bulge 36 enters the gluteal cleft. At this time, the shape of the top 31 of the bulge 30 is maintained while its periphery enters along the gluteal cleft. Accordingly, the seam (rear seam 26s) of the wide rear end 26 moves toward the front side, and the wide rear end 26 moves forward to fit the buttocks. In contrast, in the above-mentioned Patent Document 2, it is difficult to maintain a three-dimensional shape. Since there is nothing to support the left and right parts of the slit portion, it is expected to deform according to the movement of the body, and in some cases, it may not return to its original shape from the deformed shape. The absorbent pad 20 of this embodiment solves such problems.
[0049] Furthermore, the pad main body 23 having a tapered shape makes it easy to insert the pad main body 23 into the storage pocket 40 of the shorts body 2.
[0050] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, the bulge 30 may be formed by a method other than darts. For example, a filling member (e.g., made of an absorbent body) dedicated to forming the bulge 30 may be provided between the first surface 21 and the second surface 22.
[0051] The columnar portion A may be omitted. As long as the bulging portion 30 has the above-mentioned shape (a mountain shape or an arch shape in a cross section perpendicular to the front-rear direction line, and an arch shape in a cross section perpendicular to the left-right direction line), the bulging portion 30 fits closely to the crotch of the wearer. This allows liquids such as menstrual blood to be absorbed efficiently.
[0052] The wide rear end portion 26 may extend parallel (flat) to the waterproof fabric 55 without bending.
[0053] The pad body 23 may be rectangular in shape (not tapered) in plan view. [Explanation of symbols]
[0054] 1...shorts (shorts with absorbent pad), 2...shorts body, 6...crotch portion, 20...absorbent pad, 21...first surface, 22...second surface, 23...pad body, 23a...tip portion (front end), 26...wide rear end portion, 30...bulge portion, 31...top, 40...storage pocket, 41...pad insertion opening, 51L...left part, 51R...right part, 52e...joining edge, 52f...rear edge, 52L...left surface fabric, 52R...right surface fabric, 53e...joining edge, 53f...rear edge, 53L...left absorbent fabric (absorbent body), 53R...right absorbent fabric (absorbent body), 54...base absorbent fabric (absorbent body), 56a...front edge, 57a...front edge, A...columnar portion.
Claims
1. An absorbent pad that extends long in the front-rear direction and has a predetermined width in the left-right direction, has an absorbent body between a first surface that is disposed on the wearer's body side and a second surface that is disposed on the opposite side to the first surface, and is stored in a storage pocket provided in a crotch portion of a shorts body, a bulge provided on the first surface side at a position closer to the front in the front-rear direction, The bulging portion has a mountain shape or an arch shape in a cross section perpendicular to a front-rear line, and also has an arch shape in a cross section perpendicular to a left-right line.
2. the bulging portion is formed by a left part and a right part each including at least the absorbent body, 2. The absorbent pad according to claim 1, wherein the joining edge of the left part and the joining edge of the right part each have a predetermined cut shape, and the bulge is formed by a portion of the left part and a portion of the right part taking on a three-dimensional shape after the pair of joining edges are joined.
3. 3. The absorbent pad according to claim 1, wherein the bulge includes a columnar portion extending in the front-rear direction, the columnar portion being positioned directly below an apex of a mountain or arch in a cross section perpendicular to the front-rear direction.
4. The pad further includes a wide rear end portion that is disposed adjacent to the rear side of the pad main body portion including the bulge portion and has a width in the left-right direction that is wider than the bulge portion, 3. The absorbent pad according to claim 1, wherein the wide rear end portion has a cut shape in which at least one of a rear edge portion of a part on the first surface side of the pad main body portion and a front edge portion of a part on the first surface side of the wide rear end portion has a concavely curved shape, so that the wide rear end portion is bent relative to the pad main body portion after the rear edge portion and the front edge portion are joined.
5. 3. The absorbent pad according to claim 1, wherein the pad body including the bulge has a tapered shape in which the width in the left-right direction becomes narrower toward the front end thereof.
6. A shorts body to be worn by the wearer, the shorts body having a storage pocket in a crotch portion; The absorbent pad according to claim 1 or 2, which is stored in the storage pocket of the shorts body; Shorts with absorbent pads.
Citation Information
Patent Citations
Absorbent article
JP1992128728U
Shape duplicating solid napkin
JP2001224626A