Shorts

The shorts utilize weft knitted fabric edges and elastic integration to prevent slippage and constriction, ensuring a comfortable, stable fit for relaxed wear.

JP2025185425APending Publication Date: 2025-12-22GUNZE LTD
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Patent Information

Application Number
JP2024093663
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-06-10
Publication Date
2025-12-22

AI Technical Summary

Technical Problem

Existing shorts with a single continuous fabric and non-elastic leg openings cause discomfort due to pressure and slippage, particularly around the groin and waist areas.

Method used

The shorts are designed with weft knitted fabric edges finished in rolled or merrow lock stitches for leg openings and overlock stitches for torso openings, incorporating elastic yarn between looper yarn and fabric, and a rise length of 15 cm or more, ensuring a snug fit without constriction.

Benefits of technology

The design provides a comfortable, stable fit that prevents slippage and localized tightness, allowing for relaxed wear without constriction.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide shorts worn during relax time, which can avoid sliding-down and sliding-up without giving a wearer local tightening feeling.SOLUTION: Shorts include a front body part, a back body part and a gusset part. The front body part and the back body part are configured of weft knitted fabrics whose course direction is arranged along a circumference of a wearer's body part. A gusset part is configured of the weft knitted fabric whose course direction is arranged along a cross direction of a wearer's crotch part. Edges of the weft knitted fabric, which form leg openings, are finished with rolled lock or merrow lock stitches so that they are wavy. An edge of the weft knitted fabric for forming a body opening is finished with rolled lock or merrow lock or overlock stitches. A worn state is maintained by surface pressure of the front body part and the back body part.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to shorts, and more particularly to shorts to be worn when relaxing indoors or the like. [Background technology]

[0002] Patent Document 1 proposes shorts that have a front body that covers the wearer's lower abdomen, a back body that covers the wearer's buttocks, a crotch section that covers the wearer's crotch, and side sections that connect the left and right upper ends of the front and back body, forming left and right leg openings below through which the wearer's legs are passed, and a waist section above through which the wearer's torso is passed, in which the front body, back body, and crotch section are formed from a single continuous piece of fabric, and the leg openings are finished with a merrow stitch. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3233042 Summary of the Invention [Problem to be solved by the invention]

[0004] The shorts described above have the front, back and crotch sections formed from a single continuous piece of fabric, and the leg openings are finished with a scalloped edge without using elastic, which gives the fabric more room and reduces the fit around the groin area. As a result, this eliminates the feeling of pressure in the groin area and reduces the discomfort caused by the elastic touching the skin when worn.

[0005] However, in order to prevent these shorts from slipping down when worn, the upper edge of the body fabric is folded over at the waist, and a strip of elastic is inserted into the folded over part and sewn in place. Although this reduces the discomfort caused by the elastic touching the skin, there is still room for improvement in terms of eliminating the discomfort caused by the elastic constricting the waist.

[0006] An object of the present invention is to provide shorts to be worn when relaxing, which do not give the wearer a feeling of localized tightness and can prevent the shorts from sliding down or up. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, a first characteristic configuration of the shorts according to the present invention is that the shorts have a front body, a back body and a gusset portion, the front body and the back body being formed from weft knitted fabric whose course direction follows the circumference of the wearer's torso, and the gusset portion being formed from weft knitted fabric whose course direction follows the front-to-back direction of the wearer's crotch, the edges of the weft knitted fabric that form the leg openings are finished with a rolled lock stitch or merrow lock stitch so as to create a wavy pattern, and the edges of the weft knitted fabric that form the torso opening are finished with a rolled lock stitch, merrow lock stitch or overlock stitch, and the shorts are maintained in their worn state by the surface pressure of the front body and the back body.

[0008] The edges of the weft knitted fabric that form the leg openings are finished with a rolled or serrated lock stitch, so the edges of the leg openings do not ripple or constrict the legs when worn. Furthermore, the edges of the weft knitted fabric that form the torso openings are finished with a rolled, serrated, or overlock stitch, so they do not constrict the torso when worn. Furthermore, the surface pressure of the body fabrics that make up the front and back body panels allows the garment to fit snugly against the wearer's skin, maintaining the garment in a worn position. Therefore, the garment does not feel locally constricting and can be prevented from slipping down or up.

[0009] The second characteristic configuration is that, in addition to the first characteristic configuration described above, the edge of the weft knitted fabric that forms the torso opening is overlocked, and an elastic yarn is arranged so as to be sandwiched between the looper yarn and the weft knitted fabric.

[0010] The edges of the weft knitted fabric that forms the torso opening are overlocked, and the elastic yarn sandwiched between the looper yarn and the weft knitted fabric loosely tightens the torso without giving the wearer a tight feeling. The elastic yarn is not sewn into the body fabric, but is arranged freely between the looper yarn and the weft knitted fabric, so the loose tightening force acting on the torso does not fluctuate locally.

[0011] The third characteristic configuration is that, in addition to the second characteristic configuration described above, the edge of the weft knitted fabric that forms the body opening is finished with a two-needle overlock, and the elastic yarn is arranged so as to be sandwiched between the looper yarn and the weft knitted fabric at the middle part of the two needle threads.

[0012] Two needle threads are sewn in parallel along the inside of the body opening, and the elastic thread placed in the middle of the two needle threads is sandwiched between the looper thread and the weft knitted fabric, so the elastic thread is held stably between the two needle threads.

[0013] The fourth characteristic feature of the present invention is that, in addition to the first characteristic feature described above, the rise length is set to 15 cm or more when laid flat.

[0014] If the rise length is less than 15 cm when laid flat, the area on which the surface pressure of the body fabric that makes up the front and back body acts will be reduced, which may make it difficult to maintain a stable wearing state.However, if the rise length is 15 cm or more when laid flat, the area on which the surface pressure of the body fabric acts will be sufficient, making it possible to maintain a stable wearing state.

[0015] The fifth characteristic feature of the present invention is that, in addition to the first characteristic feature described above, the front body and the back body are seamlessly formed from a circular knit fabric.

[0016] There are no stitching on the sides of the front and back body parts, ensuring a comfortable fit against the skin, and the torso part is formed into a cylindrical shape with a fixed diameter, so the circumference of the buttocks and waist are the same, so the waist is not constricted.

[0017] The sixth characteristic feature of the present invention is that, in addition to the first characteristic feature described above, the left and right side portions of the front body and the back body are sewn together, thereby adjusting the surface pressure.

[0018] By sewing the left and right sides of the front and back body sections, the size can be adjusted to fit the wearer's waist, and the surface pressure on the skin can be appropriately adjusted to prevent the garment from slipping down.

[0019] The seventh characteristic configuration is that, in addition to any one of the first to sixth characteristic configurations described above, the weft knitted fabric is knitted with covering yarn and is a jersey knitted fabric with a stretch force of 0.1 to 0.2 N in the horizontal direction and 0.8 to 1.2 N in the vertical direction at a constant elongation of 30%.

[0020] DCY and SCY covering yarns can be suitably used, in which natural rubber or polyurethane elastic fiber is used as a core yarn and synthetic or natural fiber is used as a sheath yarn wrapped around the core yarn.By using the above-mentioned jersey knit fabric, shorts that can be worn when relaxing can be realized, which do not give the wearer a feeling of localized tightness and prevent them from slipping down or up. [Effects of the Invention]

[0021] As described above, according to the present invention, it is possible to provide shorts that can be worn when relaxing, which do not give the wearer a feeling of localized tightness and can prevent the shorts from sliding down or up. [Brief explanation of the drawings]

[0022] [Figure 1] 1(a) is an explanatory diagram of a front view of shorts showing a first embodiment of the present invention, (b) is an explanatory diagram of a back view, and (c) is an explanatory diagram of a gusset portion. [Figure 2] 1(a) is a front view of shorts showing a second embodiment of the present invention, and FIG. 1(b) is an enlarged view of a main part of the edge of the waist opening. [Figure 3] An explanatory diagram of the overlocking of the edge of the body opening shown in Figure 2(b). [Figure 4]1(a) and 1(b) are explanatory front views showing different crotch lengths of shorts according to the present invention. [Figure 5] FIG. 1(a) is an explanatory front view of shorts showing a fourth embodiment of the present invention, and FIG. 1(b) is an explanatory view of the edges of the waist opening and leg openings. DETAILED DESCRIPTION OF THE INVENTION

[0023] The shorts according to the present invention will now be described. [First embodiment of shorts] 1(a), (b) and (c) show the appearance of shorts 1 according to a first embodiment of the present invention. The shorts 1 comprise a front body 2, a back body 3, and a gusset 4, with the front body 2 and the back body 3 being formed of weft knitted fabric whose course direction follows the circumference of the wearer's torso, and the gusset 4 being formed of weft knitted fabric whose course direction follows the front-to-back direction of the wearer's crotch. A patch 5 formed narrower than the left-to-right width of the gusset 4 is arranged on the skin side of the gusset 4.

[0024] The edges of the weft knitted fabric that form the leg openings 5R, 5L, specifically the lower edges of the front body 2, back body 3 and gusset portion 4, are finished with a rolled lock stitch or merrow lock stitch to create a wavy shape, and the edges of the weft knitted fabric that form the torso opening 6, specifically the upper edges of the front body 2 and back body 3, are finished with a rolled lock stitch, merrow lock stitch or overlock stitch, so that the front body 2 and back body 3 can maintain their worn state due to the surface pressure.

[0025] If the edges of the weft knitted fabric forming the leg openings 5R, 5L are finished with a rolled lock stitch or a merrowlock stitch, the edges of the leg openings 5R, 5L will not ripple when worn and will not constrict the wearer's legs. Also, if the edges of the weft knitted fabric forming the torso opening 6 are finished with a rolled lock stitch or a merrowlock stitch, the edges of the torso opening 6 will not ripple when worn and will similarly not constrict the wearer's torso. Also, even if the edges of the weft knitted fabric forming the torso opening 6 are finished with an overlock stitch, they will not constrict the torso when worn.

[0026] The cut edges of the front body 2 and back body 3 that form the leg openings 5R, 5L, which form the crotch openings, are inclined at an angle θ of approximately 45 degrees relative to the course direction of the weft knitted fabric, allowing for moderate stretching and contraction forces to act on them without applying any constricting force that would impair the wearing comfort, preventing the edges from stretching and causing the hem to slip up.

[0027] The shorts fit snugly against the wearer's skin and are maintained in place by the surface pressure of the fabric that makes up the front body 2 and the back body 3. This prevents the shorts from riding up or down without causing any localized tightness to the wearer, and they can be worn indoors or when you want to relax, providing a sense of freedom.

[0028] As shown in Figure 4(a), it is preferable that the rise length be set to 15 cm or more when laid flat. If the rise length is less than 15 cm when laid flat, the area over which the surface pressure of the body fabric constituting the front body 2 and back body 3 acts on the wearer's skin will be reduced, which may make it difficult to maintain a stable wearing state. However, if the rise length is 15 cm or more when laid flat, a sufficient area can be secured for the surface pressure of the body fabric, making it possible to maintain a stable wearing state. Furthermore, as shown in Figure 4(b), it is preferable that the rise length be 35 cm or less; if it exceeds 35 cm, a feeling of pressure will be felt.

[0029] It is preferable that the shorts 1 described above have a front body 2 and a back body 3 seamlessly constructed from a circular knit fabric, which is a type of weft knit fabric, and there are no seams on the sides of the front body 2 and the back body 3, ensuring a comfortable fit against the skin.In addition, the torso portion is formed into a cylindrical shape with a constant diameter, and the circumference of the buttocks and waist is the same, so there is no tightness around the waist.

[0030] The weft knit fabric constituting the body fabric is preferably a plain knit fabric knitted with a blend of cotton, polyester, and polyurethane yarns, and the extension force of the body fabric at a constant elongation of 30% (JIS L1096 method B) is in the range of 0.10 to 0.20 N, preferably 0.11 to 0.12 N in the horizontal direction (course direction), and in the range of 0.80 to 1.20 N, preferably 0.90 to 1.10 N in the vertical direction (wale direction).

[0031] By using the above-mentioned weft knitted fabric, it is possible to realize shorts that can be worn when relaxing, which do not give the wearer a feeling of localized tightness and prevent them from slipping down or up. The weft knitted fabric is not limited to plain knitted fabric, and rib knitting, purl knitting, etc. can also be used. The shorts 1 shown in Figure 1 are knitted with covering yarn (core yarn: polyurethane yarn, sheath yarn: cotton yarn, nylon yarn) and use jacquard plain knit knitted into a three-dimensional pattern. Similar knitted fabrics can also be used in other embodiments described below.

[0032] [Second embodiment of shorts] FIG. 2(a) shows shorts 1 in which the edge of the weft knitted fabric forming the torso opening 6 is overlocked and an elastic yarn is sandwiched between the looper yarn and the weft knitted fabric, and FIG. 2(b) shows enlarged views of the front and back of the torso opening 6. The edge of the weft knitted fabric forming the torso opening 6 is overlocked, and the elastic yarn is sandwiched between the looper yarn and the weft knitted fabric, loosely tightening the torso without giving the wearer a tight feeling. The elastic yarn is not sewn into the body fabric, but is freely arranged between the looper yarn and the weft knitted fabric, so there is no localized fluctuation in the loose tightening force acting on the torso. A suitable elastic yarn is a rubber sewing thread made of a core thread of natural rubber or polyurethane elastic fiber wrapped around the outside of a sheath thread of synthetic or natural fiber.

[0033] Figure 3 shows an example of an overlock finish, showing the use of threads for an overlock finish using a two-needle overlock machine. The edge of the weft knitted fabric that forms the body opening 6 is finished with a two-needle overlock, with the elastic thread sandwiched between the looper thread and the weft knitted fabric in the middle of the first and second needle threads. In this example, the elastic thread is placed on the back side (skin side) of the weft knitted fabric. In this example, by using an elastic thread as a serger thread, the elastic thread is placed between the lower looper thread and the weft knitted fabric when the body opening 6 is cut and sewn with a lockstitch machine.

[0034] Two needle threads are sewn in parallel along the inside of the body opening 6, and the elastic thread arranged in the middle of the two needle threads is sandwiched between the lower looper thread and the weft knitted fabric, so the elastic thread is held stably between the two needle threads. Note that the overlock finish is not limited to a two-needle overlock finish, and a single-needle overlock finish is also acceptable.

[0035] [Third variant of shorts] The shorts 1 shown in Fig. 1 have a crotch opening, but as shown in Figs. 5(a) and (b), they can also be configured as long shorts 1 that do not have a crotch opening and cover the wearer's thighs. In this case, the shorts 1 also have a front body 2, a back body 3, and a gusset 4, with the front body 2 and the back body 3 being formed from weft knitted fabric whose course direction follows the circumference of the wearer's torso, and the gusset 4 being formed from weft knitted fabric whose course direction follows the front-to-back direction of the wearer's crotch. A patch 5 formed narrower than the left-to-right width of the gusset 4 is arranged on the skin side of the gusset 4.

[0036] In the shorts 1 shown in Figures 5(a) and (b), the edges of the weft knitted fabric that form the leg openings 5R, 5L, specifically the lower edges of the front body 2, back body 3 and gusset portion 4, are finished with a rolled or serged hemming to create a wavy shape, and the edges of the weft knitted fabric that form the torso opening 6, specifically the upper edges of the front body 2 and back body 3, are also finished with a rolled or serged hemming. The body fabric stretches around the legs, covering the legs, so there is no tight feeling and a comfortable fit is achieved.

[0037] As in Fig. 2, the edge of the weft knitted fabric forming the body opening 6 may be overlock finished instead of roll lock finished or merrow lock finished. In this case too, it is preferable to arrange the elastic yarn so that it is sandwiched between the looper yarn and the weft knitted fabric.

[0038] [Fourth type of shorts] In the above example, shorts 1 are described that have a seamless waistline using circular knit fabric, but it is also possible to use weft knit fabric and cut the front body 2 and back body 3 separately, with side seams that sew together the left and right side edges of the front body 2 and the left and right side edges of the back body 3. It is also possible to configure shorts 1 that have a central vertical seam that sews together the left and right central parts of the back body 3. According to this embodiment, it is possible to configure shorts 1 that fit the wearer's body shape appropriately.

[0039] The above description is an example of the present invention, and the scope of the present invention is not limited by this description. It goes without saying that the type, thickness, knitting structure, and properties of the elastic yarn that make up the weft knitted fabric can be appropriately modified and designed within the scope that achieves the effects of the present invention. [Industrial Applicability]

[0040] The present invention makes it possible to realize shorts that can be worn when relaxing and that do not give the wearer a feeling of localized tightness and that do not slide down or up. [Explanation of symbols]

[0041] 1: Shorts 2: Front 3: Back 4: Gusset 5R, 5L: Leg opening 6: Body opening

Claims

1. A pair of shorts comprising a front body, a back body, and a gusset portion, the front body and the back body being constituted by weft knitted fabrics whose course direction is aligned with the circumference of a wearer's torso, and the gusset portion being constituted by weft knitted fabrics whose course direction is aligned with the front-to-back direction of the wearer's crotch, The edge of the weft knitted fabric forming the leg opening is finished with a rolled lock stitch or a merrow lock stitch so as to be wavy, The edge of the weft knitted fabric forming the body opening is finished with a roll lock finish, a merrow lock finish, or an overlock finish, The shorts are maintained in a worn state by the surface pressure of the front body and the back body.

2. 2. The shorts according to claim 1, wherein the edge of the weft knitted fabric forming the body opening is overlocked, and an elastic yarn is sandwiched between the looper yarn and the weft knitted fabric.

3. 3. The shorts according to claim 2, wherein the edge of the weft knitted fabric forming the body opening is finished with a two-needle overlock, and the elastic yarn is sandwiched between the looper yarn and the weft knitted fabric at the midpoint between the two needle yarns.

4. 2. The shorts according to claim 1, wherein the rise length is set to 15 cm or more when laid flat.

5. 2. The shorts according to claim 1, wherein the front body and the back body are seamlessly constructed from a circular knit fabric.

6. The shorts according to claim 1, wherein the surface pressure is adjusted by sewing the left and right side portions of the front body and the back body or the left and right central portion of the back body.

7. 7. The shorts according to claim 1, wherein the weft knitted fabric is a jersey knitted fabric knitted with covering yarn and having a tensile strength of 0.10 to 0.20 N in the weft direction and 0.80 to 1.20 N in the warp direction at a constant elongation of 30%.

Citation Information

Patent Citations

  • shorts

    JP3233042U