JP7758343B2 - Nightwear - Google Patents

Description

This disclosure relates to nightwear.

Various types of nightwear have been known for some time. Utility Model Registration No. 3103756 describes pajamas consisting of an upper garment and a lower garment. The upper garment has sleeves, and the sleeves have linings positioned inside the cuffs. The linings have openings through which the pajama wearer's hands are passed.

The lining is sewn to the inside of the sleeve so that the lining opening is positioned slightly inside the cuff. The undergarment has a hem, and the hem has a lining positioned inside the hem opening. The lining at the hem has an opening through which the pajama wearer's legs are passed. The lining at the hem is sewn to the inside of the hem so that the lining opening is positioned slightly inside the hem opening.

Utility Model Registration No. 3103756

Incidentally, nightwear is sometimes required to ensure heat retention to keep the wearer's body warm, especially in winter. In the pajamas mentioned above, the sleeves and hems are made of double-layered fabric, making it less likely for the wearer to feel cold or chilly. However, when wearing nightwear, there are times when the wearer wants to roll up the sleeves or hems to do manual labor, etc. With the pajamas mentioned above, when the sleeves or hems are rolled up, the lining located on the inside of the sleeves or hems is exposed, which can create an unnatural appearance. This can result in an unattractive appearance when the sleeves or hems are rolled up. Therefore, it is required that the sleeves or hems can be kept natural even when rolled up.

The objective of this disclosure is to provide nightwear that can retain heat and maintain a natural appearance even when the sleeves or hem are rolled up.

One aspect of the present disclosure provides nightwear (1) comprising a body and a pair of sleeves. At least one of the pair of sleeves comprises an outer tubular fabric extending continuously from the body and having an opening through which the wearer's hands are passed, and an inner tubular fabric extending from the opening of the outer tubular fabric. One end of the inner tubular fabric in the axial direction, i.e., the direction in which the axis of the inner tubular fabric extends, is connected to the outer tubular fabric via a sewn portion inside the outer tubular fabric. The other end of the inner tubular fabric is retractable within the outer tubular fabric between the sewn portion and the opening. The other end protrudes from the opening when the inner tubular fabric is extended in the axial direction and the hands are not passed through it . At least one of the pair of sleeves has a storage space between the outer tubular fabric and the inner tubular fabric for storing a rolled-up portion of the inner tubular fabric.

In this nightwear, the sleeves have an outer tubular fabric and an inner tubular fabric, and the inner tubular fabric protrudes from an opening in the outer tubular fabric. By placing the inner tubular fabric inside the outer tubular fabric in the sleeves, heat retention in the sleeve area is ensured. One end of the inner tubular fabric is connected to the outer tubular fabric via a sewn section, and the other end of the inner tubular fabric can be stored inside the outer tubular fabric between the sewn section and the opening. Therefore, when the sleeves are rolled up, the other end of the inner tubular fabric can be stored inside the outer tubular fabric, allowing the sleeves to look natural when rolled up. Therefore, a natural appearance can be maintained even when the sleeves are rolled up.

(2) In (1) above, the inner tubular fabric may have a first opening located at the other end through which the wearer's fingers are passed, and a second opening formed at a different position from the other end through which a different finger from the wearer's fingers is passed. In this case, the wearer's fingers are passed through the first opening, and a different finger from the first and second openings is passed through the second opening. Therefore, by passing the wearer's fingers through the first and second openings of the inner tubular fabric, it is possible to prevent the inner tubular fabric from being unintentionally rolled up.

(3) In the above (1) or (2), the nightwear may further include a high-necked collar. In this case, the high-necked collar can further enhance heat retention.

Another aspect of the present disclosure relates to nightwear (4) that includes a crotch and a pair of inseams, each of which has a hem. At least one of the pair of hemlines extends continuously from the crotch and includes an outer tubular fabric having an opening through which the wearer's legs are passed, and an inner tubular fabric that protrudes from the opening of the outer tubular fabric. Inside the outer tubular fabric, one end of the inner tubular fabric in the axial direction, i.e., the direction in which the axis of the inner tubular fabric extends, is connected to the outer tubular fabric via a sewn portion. The other end of the inner tubular fabric is retractable within the outer tubular fabric between the sewn portion and the opening. The other end protrudes from the opening when the inner tubular fabric is extended in the axial direction and the wearer's legs are not passed through . At least one of the pair of hemlines has a storage space between the outer tubular fabric and the inner tubular fabric for storing a rolled-up portion of the inner tubular fabric.

In this nightwear, the hem has an outer tubular fabric and an inner tubular fabric, and the inner tubular fabric protrudes from an opening in the outer tubular fabric. By placing the inner tubular fabric inside the outer tubular fabric at the hem, warmth can be maintained at the hem. One end of the inner tubular fabric is connected to the outer tubular fabric via a sewn section, and the other end of the inner tubular fabric can be stored inside the outer tubular fabric between the sewn section and the opening. Therefore, when the hem is rolled up, the other end of the inner tubular fabric can be stored inside the outer tubular fabric, allowing for a natural appearance when the hem is rolled up. Therefore, a natural appearance can be maintained even when the hem is rolled up.

(5) In (4) above, the inner tubular fabric may have a third opening located at the other end through which the wearer's fingers are inserted, and a fourth opening formed at a different position from the other end through which the wearer's heel is exposed. In this case, the wearer's fingers are inserted through the third opening, and the wearer's heel is inserted through the fourth opening. By having the fourth opening through which the heel is exposed in the inner tubular fabric, the shape of the inner tubular fabric can be simplified. In other words, if the fourth opening through which the heel is exposed is formed, the shape of the inner tubular fabric through which the foot is inserted does not need to be folded like a sock, but can be a straight shape. This makes it easier to roll up the inner tubular fabric. If the inner tubular fabric has a fourth opening through which the heel is exposed, it can be more flexible to accommodate the wearer's foot size. Furthermore, if the fourth opening through which the heel is exposed is formed, it can prevent the foot from slipping when walking, etc.

(6) In any of (1) to (5) above, the inner tubular fabric may be made of a fabric that is more stretchable than the outer tubular fabric. In this case, the inner tubular fabric has a higher stretchability than the outer tubular fabric, making it easier for the inner tubular fabric to appear and disappear from the outer tubular fabric.

This disclosure ensures heat retention and maintains a natural appearance even when the sleeves or hem are rolled up.

FIG. 1 is a diagram showing the upper garment of nightwear according to the first embodiment. FIG. 2 is a diagram showing the lower garment of nightwear according to the first embodiment. 2 is a diagram showing an outer tubular fabric and an inner tubular fabric in the sleeve of the upper garment of FIG. 1. FIG. 10 is a perspective view showing a state in which a wearer's fingers are inserted into the first opening and the second opening of the inner tubular fabric. FIG. FIG. 10 is a cross-sectional view showing the state in which the inner tubular fabric protrudes from the opening of the outer tubular fabric. FIG. 10 is a perspective view showing the state in which the inner tubular fabric is wrapped inside the outer tubular fabric. FIG. 10 is a cross-sectional view showing the state in which the inner tubular fabric is rolled up inside the outer tubular fabric. FIG. 10 is a perspective view showing the state in which the inner tubular fabric is rolled up over the outer tubular fabric. FIG. 10 is a perspective view showing the rear of the lower garment of the nightwear according to the second embodiment. FIG. 10 is a perspective view showing the inner tubular fabric of the nightwear of FIG. 9. FIG. 11 is an enlarged perspective view of the inner tubular fabric of FIG. 10 . 10A and 10B are graphs showing experimental results for the nightwear according to the example. 10A and 10B are diagrams showing the results of an experiment to measure the temperature of the hands of a wearer wearing nightwear according to a comparative example. 10A and 10B are diagrams showing the results of an experiment to measure the temperature of the hands of a wearer wearing nightwear according to an embodiment of the present invention. 10A and 10B are diagrams showing the results of an experiment to measure the temperature of the feet of a wearer wearing nightwear according to a comparative example. 10A and 10B are diagrams showing the results of an experiment to measure the temperature of the feet of a wearer wearing nightwear according to an embodiment of the present invention.

Below, an embodiment of nightwear according to the present disclosure will be described with reference to the drawings. In the description of the drawings, identical or corresponding elements will be given the same reference numerals, and duplicate explanations will be omitted as appropriate. The drawings may be partially simplified or exaggerated to facilitate understanding, and dimensional proportions, etc., are not limited to those shown in the drawings.

Nightwear is clothing that can be worn at night. For example, nightwear can be loungewear worn before going to bed, or clothing worn while sleeping (nightwear, pajamas). In one embodiment, nightwear comprises a body and a pair of sleeves. The "body" refers to the part of the garment that covers the front and back of the body of the wearer of the nightwear. The "sleeves" refer to the tubular part of the garment through which the wearer's arms pass.

Nightwear according to another embodiment comprises a rise and a pair of inseam sections. "Rise" refers to the portion of the garment that covers the upper side of the wearer's crotch. "Inseam" refers to the portion of the garment that covers the lower side of the wearer's crotch. Each of the pair of inseam sections has a hem. "Hem" refers to the tubular portion of the garment through which the wearer's legs pass.

In the nightwear according to this embodiment, at least one of the sleeves and hem has an outer tubular fabric and an inner tubular fabric positioned inside the outer tubular fabric, with the inner tubular fabric extending through an opening in the outer tubular fabric. The "outer tubular fabric" is the part that forms the outer surface of the sleeve or hem. For example, the material of the outer tubular fabric is the same as the material of the body, rise, or crotch.

The "inner tubular fabric" refers to the fabric that is connected to the outer tubular fabric on the inside of the outer tubular fabric and is able to freely protrude into and retract from the opening of the outer tubular fabric. One axial end of the inner tubular fabric is connected to the outer tubular fabric on the inside of the outer tubular fabric via a sewn portion. The "sewn portion" refers to the portion where one end of the inner tubular member is sewn to the inside part of the outer tubular member.

The other end of the inner tubular fabric can be stored inside the outer tubular fabric between the sewn portion and the opening. This allows at least a portion of the inner tubular fabric to freely protrude and retract inside the outer tubular fabric. By including an outer tubular fabric and an inner tubular fabric, the nightwear of this embodiment not only exhibits high heat retention, but also has excellent design, as the inner tubular fabric can be rolled up inside the outer tubular fabric to create a natural look.

(First embodiment)
Fig. 1 is a diagram showing an upper garment 2 of nightwear 1 as an example according to the first embodiment. Fig. 2 is a diagram showing a lower garment 3 of the nightwear 1. The nightwear 1 is, for example, thermal pajamas worn in winter. The nightwear 1 comprises an upper garment 2 and a lower garment 3. For example, the upper garment 2 and the lower garment 3 are made of the same material.

As an example, the top garment 2 and bottom garment 3 are each made of fabric (woven fabric). For example, the top garment 2 has a thermal insulation structure 2A, and the bottom garment 3 has a thermal insulation structure 3A. By having the top garment 2 and bottom garment 3 each have thermal insulation structures 2A, 3A, the nightwear 1 exhibits high thermal insulation properties.

The top 2 comprises a body 4, a pair of sleeves 5 extending from the body 4, and a collar 6 protruding upward from the body 4. The body 4 has a left body 4b and a right body 4c. The left body 4b covers the left upper half of the body of a wearer M (see Figure 4) of the nightwear 1, and the right body 4c covers the right upper half of the body of the wearer M. The top 2 comprises a plurality of buttons 2b that fasten the right body 4c to the left body 4b, and a pocket 2c. For example, a plurality of buttons 2b are attached to the right body 4c, and buttonholes are formed in the left body 4b to fasten each button 2b. For example, a pocket 2c is sewn to each of the left body 4b and the right body 4c.

The sleeves 5 include a left sleeve 5b extending leftward from the upper part of the left body 4b, and a right sleeve 5c extending rightward from the upper part of the right body 4c. The wearer M's left arm is passed through the left sleeve 5b, and the wearer M's right arm is passed through the right sleeve 5c. The thermal insulation structure 2A of the upper garment 2 described above is provided, for example, at the cuffs of the left sleeve 5b and the right sleeve 5c. Details of the thermal insulation structure 2A will be described later.

The collar 6 is, for example, a high neck that protrudes upward from the upper end of the body 4. The collar 6 is tubular and covers the neck of the wearer M. The collar 6 has a right portion 6b located on the right side as seen by the wearer M wearing the nightwear 1, and a left portion 6c located on the left side as seen by the wearer M wearing the nightwear 1. For example, the top 2 has a button 2d attached to the right portion 6b, and a buttonhole formed in the left portion 6c through which the button 2d can be fastened.

The lower garment 3 has a rise 7 and a pair of inseams 8 extending downward from the rise 7. The lower garment 3 also has a waistband 9 located at the upper end of the rise 7. For example, a loop-shaped elastic cord is threaded through the inside of the waistband 9, allowing the waistband 9 to tighten around the waist of the wearer M. Each of the pair of inseams 8 has a hem 8b.

The thermal insulation structure 3A of the lower garment 3 is provided, for example, at each of the pair of hems 8b. For example, the thermal insulation structure 3A has a tubular outer fabric 3b that is continuous with the outer fabric of the lower garment 3, and a tubular inner fabric 3c that is attached to the inside of the outer fabric 3b by sewing. The upper end of the inner fabric 3c is sewn to the inner surface of the outer fabric 3b.

The outer fabric 3b has an outer opening 3d through which the wearer M's feet are passed, and the inner fabric 3c has an inner opening 3f through which the wearer M's feet are passed. The inner opening 3f is located inside the outer fabric 3b; for example, the inner fabric 3c does not have a portion that protrudes from the outer fabric 3b. For example, the distance K1 from the sewn portion 3g of the inner fabric 3c relative to the outer fabric 3b to the inner opening 3f is shorter than the distance K2 from the sewn portion 3g to the outer opening 3d.

For example, distance K1 is 5 cm or more and 25 cm or less, and distance K2 is 10 cm or more and 30 cm or less. As an example, distance K1 is 15 cm and distance K2 is 20 cm. In this case, the inner opening 3f is located 5 cm more inward (upper) than the outer opening 3d in the outer fabric 3b.

For example, the material of the inner fabric 3c is the same as the material of the outer fabric 3b. As an example, the outer fabric 3b and the inner fabric 3c are each made of fabric (woven fabric). A circular elastic cord is passed through the inner opening 3f, and this elastic cord makes the circumference of the inner opening 3f shorter than the circumference of the outer opening 3d. The width of the inner opening 3f is also shorter than the width of the outer opening 3d. The circular elastic cord passed through the inner opening 3f makes it possible to tighten the wearer M's leg.

Next, the thermal insulation structure 2A of the sleeve 5 will be described. The thermal insulation structure 2A comprises an outer tubular fabric 11 having an opening 11b through which the wearer M of the nightwear 1 places his or her hands, and an inner tubular fabric 12 that protrudes from the opening 11b. The outer tubular fabric 11 extends continuously from the body 4. The inner tubular fabric 12 is sewn to the outer tubular fabric 11 on the inside of the outer tubular fabric 11.

Figure 3 is a perspective view showing the thermal insulation structure 2A of the upper garment 2. As shown in Figures 1 and 3, the nightwear 1 has a tubular sewn portion 13 sewn to the inside of the outer tubular fabric 11, and the inner tubular fabric 12 is sewn to the sewn portion 13. As an example, the sewn portion 13 is an intermediate tubular fabric interposed between the outer tubular fabric 11 and the inner tubular fabric 12. The material of the sewn portion 13 is, for example, the same material as the outer tubular fabric 11. For example, the sewn portion 13 is the same fabric as the outer tubular fabric 11. As an example, the sewn portion 13 is made of woven fabric. The sewn portion 13 is, for example, made of a non-stretchable fabric. The sewn portion 13 has lower elasticity than the elasticity of the inner tubular fabric 12. For example, the sewn portion 13 is connected to the inner tubular fabric 12 by sewing. The inner tubular fabric 12 is folded back at the seam (boundary) with the sewn portion 13. For example, when it is hot, the wearer can naturally tuck the inner tubular fabric 12 in towards the base of the wearer's arm. If the sewn portion 13 is made of a non-stretch fabric, the seam with the inner tubular fabric 12 is firmly fixed, making it even easier to fold the inner tubular fabric 12.

The outer tubular fabric 11 and the inner tubular fabric 12 can each be rolled up. Figure 3 shows the outer tubular fabric 11 rolled up. For example, the material of the inner tubular fabric 12 is different from the material of the outer tubular fabric 11 (sewn portion 13). As an example, the inner tubular fabric 12 has greater stretchability than the outer tubular fabric 11. In other words, when the magnitude of tensile force applied to the outer tubular fabric 11 and the magnitude of tensile force applied to the inner tubular fabric 12 are the same, the inner tubular fabric 12 will stretch further than the outer tubular fabric 11.

For example, the thickness of the inner tubular fabric 12 is thicker than the thickness of the outer tubular fabric 11. In this case, the inner tubular fabric 12, which has an inner surface that comes into contact with the wearer M's hands, is thicker than the outer tubular fabric 11, thereby improving the warmth retention in the wearer M's hands. As an example, the inner tubular fabric 12 is made of a knit material (woven fabric).

The inner tubular fabric 12 may also be made of wool, silk, cotton, or cashmere. For example, the inner tubular fabric 12 may be made of the same material as that used for socks. In this case, the material of the socks that keeps the feet warm can be effectively used as the inner tubular fabric 12. For example, the inner tubular fabric 12 may be fluffier than the outer tubular fabric 11.

On the inside of the outer tubular fabric 11, one end 12b of the inner tubular fabric 12 in the axial direction D, which is the direction in which the axis L of the inner tubular fabric 12 extends, is connected to the outer tubular fabric 11 via a stitched portion 13. Figure 4 is a perspective view showing the wearer M's hand H inserted into the inner tubular fabric 12 protruding from the opening 11b of the outer tubular fabric 11. Figure 5 is a schematic diagram showing the cross sections of the outer tubular fabric 11 and the inner tubular fabric 12 when cut along a plane extending in the axial direction D.

As shown in Figures 3 to 5, the other end 12c of the inner tubular fabric 12 protrudes from the opening 11b when the inner tubular fabric 12 is extended in the axial direction D. The inner tubular fabric 12 has a first opening 12d located at the other end 12c and through which multiple fingers F1 of the wearer M are inserted, and a second opening 12g formed on the side portion 12f of the inner tubular fabric 12 and through which a finger F2 different from the multiple fingers F1 of the wearer M is inserted. By inserting multiple fingers F1 through the first opening 12d and a finger F2 through the second opening 12g with the inner tubular fabric 12 protruding from the outer tubular fabric 11, the hand H can be more sufficiently kept warm.

As shown in FIG. 1, the distance K3 from the end 13b of the sewn portion 13 opposite the inner tubular fabric 12 to the opening 11b of the outer tubular fabric 11 is, for example, 10 cm or more and 30 cm or less. The distance K4 from the first opening 12d of the inner tubular fabric 12 to the opening 11b of the outer tubular fabric 11 when protruding from the outer tubular fabric 11 is, for example, 5 cm or more and 15 cm or less. This ensures high thermal insulation and makes it easier to insert and remove the inner tubular fabric 12 from the outer tubular fabric 11. As an example, the distance K3 is 20 cm and the distance K4 is 10 cm.

As shown in Figure 3, for example, the length of the inner tubular fabric 12 in the axial direction D when a hand H is not placed through it is longer than the length of the inner tubular fabric 12 in the width direction W when a hand H is not placed through it. In this case, the length of the inner tubular fabric 12 in the axial direction D can be sufficiently ensured, further improving the warmth of the hand H.

As shown in FIG. 4, the first opening 12d is used to pass, for example, multiple fingers F1 (index finger, middle finger, ring finger, and little finger) of the wearer M other than the thumb. As an example, the second opening 12g is used to pass a finger F2, which is different from the multiple fingers F1. In this way, when the wearer M's fingers F1 other than the thumb are passed through the first opening 12d and the thumb is passed through the second opening 12g, the hand H can be sufficiently warmed and the inner tubular fabric 12 can fit well around the hand H. When the finger F2 is not passed through the second opening 12g, the second opening 12g is slit-shaped and extends in the axial direction D.

Figure 6 is a perspective view showing the state in which the inner tubular fabric 12 is housed inside the outer tubular fabric 11. Figure 7 shows a cross section of the outer tubular fabric 11 and the inner tubular fabric 12 cut along a plane extending in the axial direction D in the state shown in Figure 6. As shown in Figures 6 and 7, the other end 12c of the inner tubular fabric 12 can be housed inside the outer tubular fabric 11 between the sewn portion 13 and the opening 11b of the outer tubular fabric 11.

For example, the sleeve 5 has a storage space 5d between the outer tubular fabric 11 and the inner tubular fabric 12 for storing the rolled-up portion 12h of the inner tubular fabric 12. The other end 12c of the inner tubular fabric 12 can be folded outward to roll up the inner tubular fabric 12, and the rolled-up portion 12h can be stored in the storage space 5d.

Alternatively, the outer tubular fabric 11 and the inner tubular fabric 12 may be rolled up, with the outer tubular fabric 11 covering the rolled-up portion 12h. In this case, the rolled-up portion 12h of the inner tubular fabric 12 is also contained inside the outer tubular fabric 11. As a result, the inner tubular fabric 12 can be contained inside the outer tubular fabric 11 so that it does not protrude from the outer tubular fabric 11, resulting in a natural appearance.

For example, with the nightwear 1 according to this embodiment, as shown in FIG. 8, it is possible to fold the inner tubular fabric 12 over the outside of the outer tubular fabric 11 and roll up the inner tubular fabric 12. In this case, even when it is hot, rolling up the inner tubular fabric 12 over the outside of the outer tubular fabric 11 allows for a comfortable sleep.

Next, the effects obtained from the nightwear 1 according to this embodiment will be described in more detail. As shown in Figures 3, 4, and 6, in the nightwear 1, the sleeves 5 have an outer tubular fabric 11 and an inner tubular fabric 12, and the inner tubular fabric 12 protrudes from an opening 11b in the outer tubular fabric 11. By arranging the inner tubular fabric 12 inside the outer tubular fabric 11 in the sleeves 5, heat retention in the sleeve 5 area can be ensured.

One end 12b of the inner tubular fabric 12 is connected to the outer tubular fabric 11 via the sewn portion 13, and the other end 12c of the inner tubular fabric 12 can be accommodated inside the outer tubular fabric 11 between the sewn portion 13 and the opening 11b. Therefore, when the sleeves 5 are rolled up, the other end 12c of the inner tubular fabric 12 can be accommodated inside the outer tubular fabric 11, allowing the sleeves 5 to look natural when rolled up. This allows the sleeves 5 to maintain a natural appearance even when rolled up.

In this embodiment, the inner tubular fabric 12 may be made of a fabric that is more stretchable than the outer tubular fabric 11. In this case, the inner tubular fabric 12 has a higher stretchability than the outer tubular fabric 11, making it easier for the inner tubular fabric 12 to appear and disappear from the outer tubular fabric 11.

In this embodiment, the inner tubular fabric 12 has a first opening 12d located at the other end 12c through which the wearer's M's fingers F1 are inserted, and a second opening 12g formed at a different position from the other end 12c through which the wearer's M's fingers F2, different from the wearer's fingers F1, are inserted. Thus, the wearer's fingers F1 are inserted through the first opening 12d, and the wearer's fingers F2, different from the wearer's fingers F1, are inserted through the second opening 12g. Therefore, by inserting the wearer's fingers F1 and F2 through the first opening 12d and second opening 12g, respectively, of the inner tubular fabric 12, the warmth of the hand H is improved while preventing the inner tubular fabric 12 from being unintentionally rolled up.

In this embodiment, as shown in FIG. 1, the nightwear 1 further includes a high-necked collar 6. Therefore, the high-necked collar 6 can further enhance the heat retention properties of the nightwear 1.

Second Embodiment
9 is a perspective view showing a lower garment 23 of nightwear as an example according to the second embodiment. Part of the configuration of the nightwear according to the second embodiment is the same as part of the configuration of the nightwear 1 described above. Therefore, in the following description, descriptions that overlap with the description of the nightwear 1 will be omitted as appropriate.

The lower garment 23 has a thermal insulation structure 23A that is different from the thermal insulation structure 3A described above. As a result, the lower garment 23 of the nightwear according to the second embodiment exhibits even higher thermal insulation than the lower garment 3 of the nightwear 1. The lower garment 23 has a rise 27 and a pair of crotch sections 28 extending downward from the rise 27, and each of the pair of crotch sections 28 has a hem 29.

The thermal insulation structure 23A of the lower garment 23 is provided at each of the pair of hems 29. The thermal insulation structure 23A, for example, comprises an outer tubular fabric 31 having an opening 31b through which the wearer's M feet S (see FIG. 10) are passed, and an inner tubular fabric 32 that protrudes from the opening 31b. For example, the outer tubular fabric 31 extends continuously from the crotch 27. The inner tubular fabric 32 is sewn to the outer tubular fabric 31 on the inside of the outer tubular fabric 31. The inner tubular fabric 32 may be sewn to the outer tubular fabric 31 via an intermediate tubular fabric such as the sewn portion 13 described above, or may be sewn directly to the outer tubular fabric 31.

The outer tubular fabric 31 and the inner tubular fabric 32 can each be rolled up. Figure 10 is a perspective view showing the inner tubular fabric 32 with the wearer's foot S passed through and the outer tubular fabric 31 rolled up. Figure 11 is an enlarged perspective view of the heel S1 of the foot S in Figure 10. As shown in Figures 9 to 11, for example, the material of the inner tubular fabric 32 is different from the material of the outer tubular fabric 31, and the inner tubular fabric 32 has greater stretchability than the outer tubular fabric 31. For example, the thickness of the inner tubular fabric 32 is greater than the thickness of the outer tubular fabric 31. In this case, the inner tubular fabric 32, which has an inner surface that comes into contact with the wearer's foot S, is thicker than the outer tubular fabric 31, thereby improving the warmth of the wearer's foot S.

As an example, the inner tubular fabric 32 is made of a mohair-like fabric. The inner tubular fabric 32 may also be made of the same material as the inner tubular fabric 12 described above. In this case, the heat retention of the wearer's feet S can be improved. For example, the inner tubular fabric 32 may be fluffier than the outer tubular fabric 31.

One end 32b of the inner tubular fabric 32 in the axial direction Y, which is the direction in which the axis X of the inner tubular fabric 32 extends, is connected to the outer tubular fabric 31 via a stitched portion 33. The other end 32c of the inner tubular fabric 32 protrudes from the opening 31b when the inner tubular fabric 32 is extended in the axial direction Y.

The inner tubular fabric 32 has a third opening 32d located at the other end 32c through which the wearer's M fingers S2 (toes) are inserted, and a fourth opening 32g formed on the side 32f of the inner tubular fabric 32, through which the wearer's M heel S1 is exposed. With the inner tubular fabric 32 protruding from the outer tubular fabric 31, the wearer's foot S can be sufficiently insulated when multiple fingers S2 are inserted through the third opening 32d and the heel S1 is exposed through the fourth opening 32g.

For example, the length of the inner tubular fabric 32 in the axial direction Y when the foot S is not inserted is longer than the length of the inner tubular fabric 32 in the width direction Z when the foot S is not inserted. In this case, the length of the inner tubular fabric 32 in the axial direction Y can be sufficiently ensured, further improving the warmth of the foot S.

For example, all of the toes S2 of the wearer M's foot S are passed through the third opening 32d, and the heel S1 is passed through the fourth opening 32g. By passing the toes S2 of the foot S through the third opening 32d and exposing the heel S1 of the foot S through the fourth opening 32g, the foot S can be sufficiently warmed and the inner tubular fabric 32 can be fitted well to the foot S.

The other end 32c of the inner tubular fabric 32 can be accommodated inside the outer tubular fabric 31 up to the opening 31b of the outer tubular fabric 31, similar to the inner tubular fabric 12 shown in Figure 7. The other end 32c of the inner tubular fabric 32 can be accommodated inside the outer tubular fabric 31 from the sewn portion of the inner tubular fabric 32 to the outer tubular fabric 31 up to the opening 31b of the outer tubular fabric 31.

For example, the hem 29 has a storage space 29d between the outer tubular fabric 31 and the inner tubular fabric 32 for storing the rolled-up portion 32h of the inner tubular fabric 32. The other end 32c of the inner tubular fabric 32 can be folded outward to roll up the inner tubular fabric 32, and the rolled-up portion 32h can be stored in the storage space 29d.

Alternatively, the outer tubular fabric 31 and the inner tubular fabric 32 may be rolled up, with the outer tubular fabric 31 covering the rolled-up portion 32h. In this case, the rolled-up portion 32h of the inner tubular fabric 32 is also contained inside the outer tubular fabric 31. As a result, the inner tubular fabric 32 can be contained inside the outer tubular fabric 31 so that it does not protrude from the outer tubular fabric 31, resulting in a natural appearance.

The effects and advantages of the nightwear according to the second embodiment will be described in more detail. In the nightwear according to the second embodiment, the hem 29 comprises an outer tubular fabric 31 and an inner tubular fabric 32, with the inner tubular fabric 32 emerging from an opening 31b in the outer tubular fabric 31. By positioning the inner tubular fabric 32 inside the outer tubular fabric 31 at the hem 29, heat retention at the hem 29 is ensured. One end 32b of the inner tubular fabric 32 is connected to the outer tubular fabric 31 via a sewn portion, and the other end 32c of the inner tubular fabric 32 can be housed inside the outer tubular fabric 31 between the sewn portion and the opening 31b. Therefore, when the hem 29 is rolled up, the other end 32c of the inner tubular fabric 32 can be housed inside the outer tubular fabric 31, allowing the hem 29 to look natural. This allows the hem 29 to maintain a natural appearance even when rolled up.

As shown in Figures 9 to 11, in the second embodiment, the inner tubular fabric 32 has a third opening 32d located at the other end 32c through which the wearer's toes S2 are inserted, and a fourth opening 32g formed at a different position from the other end 32c and through which the wearer's heel S1 is exposed. Thus, the wearer's toes S2 are inserted through the third opening 32d, and the wearer's heel S1 is inserted through the fourth opening 32g. By including the fourth opening 32g through which the heel S1 is exposed, the shape of the inner tubular fabric 32 can be simplified. In other words, when the fourth opening 32g through which the heel S1 is exposed is formed, the shape of the inner tubular fabric 32 through which the foot S is inserted does not need to be folded like a sock, but can be linear. This makes it easier to roll up the inner tubular fabric 32. If the inner tubular fabric 32 has a fourth opening 32g that exposes the heel S1, it can accommodate the size of the wearer's foot S. Furthermore, if the fourth opening 32g that exposes the heel S1 is formed, it can make the foot S less likely to slip when walking, etc.

Furthermore, in the first and second embodiments described above, the inner tubular fabric may be made of a fabric that is more stretchable than the outer tubular fabric. In this case, the inner tubular fabric has a higher stretchability than the outer tubular fabric, making it easier for the inner tubular fabric to appear and disappear from the outer tubular fabric.

Each embodiment of the nightwear according to the present disclosure has been described above. However, the present disclosure is not limited to the aforementioned embodiments, and modifications may be made as appropriate within the scope of the claims. In other words, the shape, size, material, number, and arrangement of each part of the nightwear according to the present disclosure may be modified as appropriate within the scope of the above-mentioned spirit.

For example, in the above-described embodiment, an inner tubular fabric 12 was described in which multiple fingers F1 of the wearer M other than the thumb are passed through the first opening 12d, and the thumb is passed through the second opening 12g. However, there is no particular limitation on the types of fingers that can be passed through the first and second openings of the inner tubular fabric. Furthermore, the inner tubular fabric may have one opening or three or more openings, and there is no particular limitation on the number of openings formed in the inner tubular fabric. Furthermore, the shape, size, and arrangement of the openings in the inner tubular fabric can be changed as appropriate.

For example, in the above embodiment, the nightwear 1 was described in which the inner tubular fabric 12 was sewn to a tubular sewn portion 13 sewn to the inside of the outer tubular fabric 11. However, the shape, size, number, material, and arrangement of the sewn portion can be changed as appropriate. Furthermore, the sewn portion may be a portion where the inner tubular fabric 12 is sewn directly to the inside of the outer tubular fabric 11.

For example, in the above-described embodiment, nightwear 1 was described in which an outer tubular fabric 11 and an inner tubular fabric 12 were provided on each of a pair of sleeves 5. However, nightwear in which an outer tubular fabric 11 and an inner tubular fabric 12 are provided on only one of a pair of sleeves may also be used. In the above-described embodiment, nightwear 1 was described as thermal pajamas worn in winter. However, nightwear according to the present disclosure may also be pajamas worn in seasons other than winter. In this way, the present disclosure is applicable to various types of nightwear.

(Example)
Next, examples of nightwear according to the present disclosure will be described. Note that the present invention is not limited to the following examples. Multiple experiments were conducted on the nightwear according to the examples to verify its effects. In the experiments, subjects wore the nightwear according to the examples and the nightwear according to the comparative example, and the temperatures of the subjects' hands and feet were measured using thermocouples or thermography. Below, we will first describe the experiments using thermocouples.

(Experiment using thermocouples)
Experiments using thermocouples were conducted on nightwear according to Example 1 and nightwear according to a comparative example. The nightwear according to Example 1 is nightwear 1 shown in FIGS. 1 and 2. The nightwear according to the comparative example is nightwear 1 with the thermal structures 2A and 3A removed. The nightwear was worn for 20 to 30 minutes, and thermocouples were attached to both hands of the wearer with tape. More specifically, thermocouples were attached to the wrist and palm. The skin surface temperature was measured using the thermocouples from 20 to 30 minutes after putting on the nightwear. The wearer was allowed to stay indoors, with the temperature and humidity set to 10°C and 50% RH, respectively. The nightwear was left in the room for one hour before the start of the experiment to acclimate to the environment, and the wearer was allowed to sit and rest in a chair for five minutes before the start of the experiment.

Figure 12(a) is a graph showing the results of measuring wrist temperature in an experiment using a thermocouple. Figure 12(b) is a graph showing the results of measuring palm temperature in an experiment using a thermocouple. As shown in Figures 12(a) and 12(b), the nightwear of Example 1, which has thermal structure 2A (outer tubular fabric 11 and inner tubular fabric 12) in both the wrist and palm, was found to maintain a higher temperature and provide better thermal insulation than the nightwear of the comparative example. The wrist temperature of the comparative example nightwear decreased by 2.3°C after 30 minutes of wear, while the nightwear of Example 1 only decreased by 0.3°C after 30 minutes of wear. The palm temperature of the comparative example nightwear decreased by 4.0°C after 30 minutes of wear, while the nightwear of Example 1 only decreased by 2.1°C after 30 minutes of wear.

(Experiment using thermography)
Next, we will explain the experiment using thermography. In the experiment, the nightwear was worn for 20 to 30 minutes, and the temperature of the wearer's hands was measured using thermography. An infrared thermographic camera (manufactured by Nippon Avionics Co., Ltd.) was used as the thermograph. The temperature was measured using thermography immediately after putting on the nightwear and 20 minutes later. The wearer was allowed to stay in a room with a temperature of 10°C and a humidity of 50% RH. The nightwear was left in the room for one hour before the start of the experiment to acclimate to the environment, and the wearer was allowed to sit in a chair and rest five minutes before the start of the experiment.

Fig. 13(a) shows the results immediately after wearing the nightwear according to the comparative example, and Fig. 13(b) shows the results 20 minutes after wearing the nightwear according to the comparative example. Fig. 14(a) shows the results immediately after wearing the nightwear according to Example 1, and Fig. 14(b) shows the results 20 minutes after wearing the nightwear according to Example 1. Figs. 13(a), 13(b), 14(a), 14(b), 15(a), 15(b), 16(a), and 16(b) described below are used.
Regarding the thermography results, the closer the color is to black, the lower the temperature is, and the closer the color is to white, the higher the temperature is.

As shown in Figures 13(a) and 13(b), it was found that with the nightwear of the comparative example, the hand temperature dropped significantly 20 minutes after wearing. In contrast, as shown in Figures 14(a) and 14(b), with the nightwear of Example 1, it was found that, although the wrist temperature dropped slightly 20 minutes after wearing, the temperature at the base of the hand below the wrist remained almost unchanged. In this way, it was found that the nightwear of Example 1 exhibits higher heat retention than the nightwear of the comparative example.

In the above-mentioned thermography experiment, the foot temperatures of subjects wearing the nightwear according to the comparative example and the nightwear according to Example 2 were also measured. The nightwear according to Example 2 is the second embodiment of nightwear equipped with the outer tubular fabric 31 and inner tubular fabric 32 shown in Figure 9.

Figure 15(a) shows the foot temperature immediately after donning the nightwear of the comparative example, and Figure 15(b) shows the foot temperature 20 minutes after donning the nightwear of the comparative example. Figure 16(a) shows the foot temperature immediately after donning the nightwear of Example 2, and Figure 16(b) shows the foot temperature 20 minutes after donning the nightwear of Example 2. As shown in Figures 15(a) and 15(b), it was found that with the nightwear of the comparative example, the temperature of the feet (particularly the instep) dropped significantly 20 minutes after donning. Specifically, after 20 minutes, the temperature of the instep dropped by 1.6°C and the temperature of the ankle dropped by 0.5°C. In contrast, as shown in Figures 16(a) and 16(b), it was found that with the nightwear of Example 2, the temperature of the feet increased 20 minutes after donning. Specifically, after 20 minutes, the temperature of the instep increased by 1.0°C and the temperature of the ankle increased by 1.6°C. As such, it was found that the nightwear of Example 2 exhibited higher heat retention than the nightwear of the Comparative Example, and was able to warm the feet more effectively.

1...nightwear, 2...top, 2A...thermal insulation structure, 2b...button, 2c...pocket, 2d...button, 3...bottom, 3A...thermal insulation structure, 3b...outer fabric, 3c...inner fabric, 3d...outer opening, 3f...inner opening, 3g...sewing portion, 4...body, 4b...left body, 4c...right body, 5...sleeve, 5b...left sleeve, 5c...right sleeve, 5d...storage space, 6...collar, 6b...right part, 6c...left part, 7...rise, 8...inseam, 8b...hem, 9...waist, 11...outer tubular fabric, 11b...opening, 12...inner tubular fabric, 12b...one end, 12c...other end, 12d...first opening, 12f...side portion, 12g...Second opening, 12h...Part, 13...Sewn part, 13b...End, 23...Lower garment, 23A...Heat retaining structure, 27...Rise, 28...Inseam, 29...Hem, 29d...Accommodation space, 31...Outer cylindrical fabric, 31b...Opening, 32...Inner cylindrical fabric, 32b...One end, 32c...Other end, 32d...th 3 openings, 32f...side part, 32g...fourth opening, 32h...part, 33...sewn part, D...axis direction, F1, F2...finger, H...hand, K1, K2, K3, K4...distance, L...axis, M...wearer, S...foot, S1...heel, S2...finger, W...width direction, X...axis, Y...axis direction, Z...width direction.

Claims (6)

A nightwear comprising a body and a pair of sleeves,
At least one of the pair of sleeves
an outer tubular fabric extending continuously from the body and having openings through which the wearer's hands can be passed;
an inner tubular fabric that protrudes from the opening of the outer tubular fabric;
and
On the inside of the outer tubular fabric, one end of the inner tubular fabric in the axial direction, which is the direction in which the axis of the inner tubular fabric extends, is connected to the outer tubular fabric via a sewn portion,
The other end of the inner tubular fabric can be accommodated inside the outer tubular fabric between the sewn portion and the opening,
the other end protrudes from the opening when the inner tubular fabric is stretched in the axial direction and the hand is not passed through the inner tubular fabric ,
At least one of the pair of sleeves has an accommodation space between the outer tubular fabric and the inner tubular fabric for accommodating the rolled-up portion of the inner tubular fabric.
Nightwear. The inner tubular fabric is
a first opening located at the other end and through which the wearer's fingers are passed;
a second opening formed at a position different from the other end and through which a finger different from the plurality of fingers of the wearer is passed;
having
2. The nightwear of claim 1. Further provided with a high neck collar,
3. Nightwear according to claim 1 or 2. Nightwear comprising a rise and a pair of inseams, each of the pair of inseams having a hem,
At least one of the pair of hems is
an outer tubular fabric extending continuously from the crotch area and having openings through which the legs of a wearer of the nightwear are passed;
an inner tubular fabric that protrudes from the opening of the outer tubular fabric;
and
On the inside of the outer tubular fabric, one end of the inner tubular fabric in the axial direction, which is the direction in which the axis of the inner tubular fabric extends, is connected to the outer tubular fabric via a sewn portion,
The other end of the inner tubular fabric can be accommodated inside the outer tubular fabric between the sewn portion and the opening,
The other end projects from the opening when the inner tubular fabric is stretched in the axial direction and the foot is not inserted ,
At least one of the pair of hems has an accommodation space between the outer tubular fabric and the inner tubular fabric for accommodating the rolled-up portion of the inner tubular fabric.
Nightwear. The inner tubular fabric is
a third opening located at the other end and through which the wearer's fingers are passed;
a fourth opening formed at a position different from the other end and through which the heel of the wearer is exposed;
having
5. Nightwear according to claim 4. The inner tubular fabric is made of a fabric that is more stretchable than the outer tubular fabric.
3. Nightwear according to claim 1 or 2.