bedding

Abstract

To provide bedding equipped with an extendable cover sheet surrounding a user and a mattress, which the user can easily enter or leave, and which can provide comfortable sleep to the user.SOLUTION: Bedding of the present invention includes a mattress on which a user lies and an extendable cover sheet that surrounds the user and the mattress. The cover sheet includes an upper side sheet for covering the top face of the mattress, a lower side sheet joined to the upper side sheet for covering the undersurface of the mattress, and a slide fastener for joining the upper side sheet and the lower side sheet in a detachable manner. The slide fastener is provided continuously on the side end part and the foot side end part of the cover sheet.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to bedding, and more particularly to bedding comprising a mattress on which a user lies and a stretchable cover sheet that surrounds the user and the mattress. [Background technology]

[0002] Conventionally, bedding has been known that includes a mattress on which a user lies and a covering sheet that surrounds the user and the mattress, as described in, for example, Patent Document 1. The covering sheet is formed into a bag shape by joining the right end, left end, and foot end of an upper sheet and a lower sheet. The covering sheet is made of a stretchable material, and the user can enter and exit through an opening at the head end of the covering sheet. Furthermore, when the user enters the covering sheet, the covering sheet contracts toward the user and the mattress. This prevents gaps from forming between the user and the covering sheet even when the user turns over, allowing the user to sleep warmly. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7089775 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the bedding in Patent Document 1 makes it difficult for the user to enter or exit the covering sheet easily because the user can only enter or exit through the opening at the head end of the covering sheet. Therefore, it is conceivable to join the upper and lower sheets of the covering sheet with a slide fastener, so that the user can enter or exit the covering sheet from the right or left end by opening or closing the slide fastener. However, when slide fasteners are provided at the right end, left end, and foot end of the covering sheet, gaps form between the slide fasteners if the relative positions of the slide fasteners are misaligned. This is particularly true when the covering sheet is stretchable. If gaps form between the slide fasteners, cold air can seep into the covering sheet, preventing the user from sleeping warmly.

[0005] Therefore, the present invention has been made to solve the above-mentioned conventional problems, and aims to provide bedding that has a stretchable covering sheet that surrounds the user and mattress, allowing the user to easily enter and exit the bedding and providing the user with a comfortable sleep. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides bedding comprising a mattress on which a user lies, and a stretchable covering sheet surrounding the user and the mattress, the covering sheet comprising an upper sheet covering the upper surface of the mattress, a lower sheet joined to the upper sheet and covering the lower surface of the mattress, and a slide fastener for detachably joining the upper sheet and the lower sheet, the slide fastener being provided continuously at the side end and the foot end of the covering sheet. The slide fastener is attached to the covering sheet so that its plane is approximately vertical at the corners of the covering sheet and approximately horizontal at the side edges and foot edges of the covering sheet. It is characterized by the following.

[0007] In the present invention configured as described above, the upper and lower sheets are detachably joined by the slide fasteners, allowing the user to enter and exit the cover sheet from its side edges. Furthermore, the slide fasteners are provided continuously at the side edges and the foot-side edge of the cover sheet, eliminating any gaps between the slide fasteners. This means that cold air cannot penetrate the cover sheet, allowing the user to sleep warmly. In addition, the slide fastener is attached to the covering sheet so that its plane is approximately vertical at the corners of the covering sheet and approximately horizontal at the side ends and foot ends of the covering sheet, making it easier for the user to open and close the slide fastener. This allows the user to easily enter and exit the room and provides the user with a comfortable sleep.

[0008] In the present invention, the slide fastener is preferably disposed inside the outer peripheral edge of the covering sheet. In the present invention configured in this manner, the slide fastener is positioned inside the outer edge of the covering sheet, so that the slide fastener can be covered and hidden by an overlay sheet or the like, thereby improving the appearance and design of the entire bedding.

[0009] In the present invention, the slide fastener is preferably bent at a corner between the side end and the foot end of the covering sheet with a larger radius of curvature than the outer periphery of the corner of the covering sheet. In the present invention configured in this manner, the slide fastener is bent at the corner between the side end and the foot end of the covering sheet with a radius of curvature larger than the outer peripheral edge of the corner of the covering sheet, thereby preventing wrinkles from forming near the corner of the covering sheet and improving the appearance and design of the entire bedding.

[0010] In the present invention, the slide fastener preferably comprises a right fastener provided continuously at the right end and foot side end of the covering sheet, and a left fastener provided continuously at the left end and foot side end of the covering sheet. In the present invention configured in this manner, the slide fastener has a right zipper that is provided continuously at the right end and foot end of the covering sheet, and a left zipper that is provided continuously at the left end and foot end of the covering sheet.Therefore, for example, when the bedding is used by two people, each user can easily enter and exit through either the right zipper or the left zipper.

[0011] In the present invention, the right and left fasteners are preferably provided so as to extend to the head-side end of the covering sheet. In the present invention configured in this manner, the right and left zippers are extended to the head side end of the covering sheet, thereby preventing cold air from entering from the head side of the covering sheet and allowing the user to sleep with their shoulders warm.

[0012] In the present invention, preferably, the first fasteners of the right and left zippers are provided on the head side of the right and left end portions, respectively, and the second fasteners of the right and left zippers are provided in the center of the foot end portions, and the slider bodies of the right and left zippers slide from the first fasteners toward the second fasteners to release the connection between the upper and lower sheets, and the slider bodies slide from the second fasteners toward the first fasteners to join the upper and lower sheets. In the present invention configured as described above, the first fasteners of the right and left zippers are located on the head sides of the right and left ends, respectively, and the second fasteners of the right and left zippers are located in the centers of the foot ends, respectively. Furthermore, the upper and lower sheets are released from each other by sliding the slider bodies of the right and left zippers from the first fasteners toward the second fasteners, and the upper and lower sheets are joined together by sliding the slider bodies from the second fasteners toward the first fasteners. This allows, for example, when two people use the bedding, each user can easily enter and exit through the right or left zipper, respectively.

[0013] In the present invention, preferably, a bag-shaped holding portion is provided at the head side end of the lower sheet to prevent the covering sheet from moving from its fixed position. In the present invention configured in this manner, a bag-shaped retaining portion is provided at the head side end of the lower sheet to prevent the covering sheet from moving from its fixed position, thereby preventing the covering sheet from moving while sleeping.

[0014] In the present invention, preferably, the upper sheet is provided with a detachable additional sheet for regulating the body temperature of the user. In the present invention configured in this manner, an additional sheet for regulating the user's body temperature is provided on the upper sheet in a removable manner, so that the body temperature can be easily regulated by attaching and detaching the additional sheet.

[0015] In addition, in the present invention, the upper sheet preferably has a string on its surface and an adjustment hole through which the string passes from the front side to the back side, and the additional sheet has an attachment hole or loop string through which the string passes to attach the additional sheet to the upper sheet. In the present invention configured in this manner, the upper sheet has a string on its surface and an adjustment hole through which the string passes from the front to the back, and the additional sheet has an attachment hole or loop string through which the string passes to attach the additional sheet to the upper sheet, so that by adjusting the direction in which the string extends, the additional sheet can be attached to either the front or back of the upper sheet.

[0016] In the present invention, the slide fastener is preferably provided continuously at the right end, the foot side end and the left end of the covering sheet. In the present invention configured in this way, the slide fasteners are provided continuously at the right end, the leg end, and the left end of the covering sheet, so there are no gaps between the slide fasteners, meaning that cold air does not get into the covering sheet and the user can sleep warmly.

[0017] In addition, in the present invention, preferably, the first stop of the slide fastener is provided on the head side of the left end, and the second stop of the slide fastener is provided on the head side of the right end, and the slider body of the slide fastener slides from the first stop toward the second stop to release the bond between the upper sheet and the lower sheet, and the slider body slides from the second stop toward the first stop to join the upper sheet and the lower sheet. In the present invention configured as described above, the first fastener of the slide fastener is provided on the head side of the left end, and the second fastener of the slide fastener is provided on the head side of the right end. Furthermore, when the slider body of the slide fastener slides from the first fastener to the second fastener, the upper sheet and the lower sheet are released from the joint, and when the slider body slides from the second fastener to the first fastener, the upper sheet and the lower sheet are joined. This makes it easier for a right-handed user, for example, to open and close the slide fastener. [Effects of the Invention]

[0018] The bedding of the present invention is provided with a stretchable covering sheet that surrounds the user and mattress, allowing the user to easily enter and exit the bed and providing the user with a comfortable sleep. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a top view of bedding according to a first embodiment of the present invention. [Figure 2] 1 is an exploded view of bedding according to a first embodiment of the present invention. [Figure 3] 1. FIG. 4 is an explanatory view showing the state of a slide fastener at a corner of the cover sheet of the bedding according to the first embodiment of the present invention, as viewed from the direction A in FIG. [Figure 4] FIG. 3 is an explanatory view showing a connection state between the cover sheet and the additional sheet member of the bedding according to the first embodiment of the present invention. [Figure 5] FIG. 2 is an explanatory view showing a holding portion of the cover sheet of the bedding according to the first embodiment of the present invention. [Figure 6] 1 is an explanatory diagram showing a state in which bedding according to a first embodiment of the present invention is used. [Figure 7] FIG. 2 is a top view of bedding according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a top view of bedding according to a third embodiment of the present invention. [Figure 9] FIG. 10 is an explanatory view showing a connection state between a cover sheet and an additional sheet member of bedding according to a fourth embodiment of the present invention. [Figure 10] FIG. 10 is an explanatory view showing a connection state between a cover sheet and an additional sheet member of bedding according to a fifth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] First, with reference to FIGS. 1 and 2, bedding 1 according to a first embodiment of the present invention (hereinafter referred to as the present embodiment) will be described. FIG. 1 is a top view of bedding according to a first embodiment of the present invention, and FIG. 2 is an exploded view of bedding according to the first embodiment of the present invention.

[0021] The bedding 1 of this embodiment is a futon set for a person to lie down on to sleep. The bedding 1 of this embodiment includes a mattress 2 on which the user lies, a stretchable cover sheet 4 that surrounds the user and the mattress 2, an additional sheet 6 that is attached to the cover sheet 4, and an overlay sheet 8 that covers the user from above. In this specification, when viewed from a user lying on their back, the upper side will be referred to as the upper side, the lower side as the lower side, the right side as the right side, the left side as the left side, the side where the user's head is located as the head side, and the side where the user's feet are located as the foot side.

[0022] The mattress 2 is a rectangular futon mattress placed on the floor. The mattress 2 is double-sized so that two people can use it at the same time, measuring approximately 210 cm in length, 140 cm in width, and 7 cm in thickness. The mattress 2 is made of cotton, which is soft to the touch and has excellent sweat absorption properties. In this embodiment, a futon mattress is used as the mattress, but a bed mattress, blanket, or throw may also be used. In this embodiment, the mattress is double-sized, but it may also be single-sized or king-sized. Furthermore, in this embodiment, the mattress is made of cotton, but wool, silk, synthetic fibers, chemical fibers, etc. may also be used.

[0023] The mattress 2 is inserted into the covering sheet 4, allowing the user to fit between the covering sheet 4 and the mattress 2. The covering sheet 4 is formed to shrink toward the user, preventing any gaps from forming between the covering sheet 4 and the user when sleeping. This prevents cold air from entering the covering sheet 4, allowing the user to sleep warmly. Note that the bedding 1 of this embodiment is not an outdoor sleeping bag used outdoors, but is intended for indoor use. The bedding 1 of this embodiment is larger than an outdoor sleeping bag, and is designed to be large enough to allow the user to turn over in bed.

[0024] The covering sheet 4 comprises an upper sheet 10 that covers the upper surface of the mattress 2, a lower sheet 12 that is connected to the upper sheet 10 and covers the underside of the mattress 2, and a slide fastener 14 that detachably joins the upper sheet 10 and the lower sheet 12. Although the covering sheet 4 in this embodiment is a single layer, multiple covering sheets 4 may be used by overlapping them.

[0025] The upper sheet 10 is a rectangular piece of fabric and is smaller in size than the lower sheet 12. Specifically, the upper sheet 10 is approximately 205 cm long and 170 cm wide. Because the upper sheet 10 comes into direct contact with the user, it is made of a skin-friendly material, such as natural fibers like cotton or linen. Furthermore, the upper sheet 10 is made stretchable by being woven with a stockinette stitch. In this embodiment, the upper sheet 10 is made stretchable by being woven with a stockinette stitch, but it may also be made stretchable by using a stretchable material.

[0026] The lower sheet 12 is a rectangular piece of fabric and is larger in size than the upper sheet 10. Specifically, the lower sheet 12 is approximately 220 cm long and 180 cm wide. The longitudinal length of the lower sheet 12 is longer than the longitudinal length of the upper sheet 10. The lower sheet 12 is made of natural fibers such as cotton or linen. The lower sheet 12 is made stretchable by being woven using a stockinette stitch. In this embodiment, the lower sheet 12 is made stretchable by being woven using a stockinette stitch, but it may also be made stretchable by using a stretchable material.

[0027] The slide fastener 14 includes a right fastener 16 provided at the right end 4a and the foot side end 4b of the covering sheet 4, and a left fastener 18 provided at the left end 4c and the foot side end 4b of the covering sheet 4. The slide fastener of the present invention includes metal fasteners, coil fasteners, resin injection fasteners, zippers, chucks, etc.

[0028] The right zipper 16 is provided continuously and uninterrupted at the right end 4a (side end) and the foot end 4b of the covering sheet 4. Similarly, the left zipper 18 is provided continuously and uninterrupted at the left end 4c (side end) and the foot end 4b of the covering sheet 4. When the slide fastener 14 is closed, the right end 4a, the foot end 4b, and the left end 4c of the covering sheet 4 are closed, and only the head end of the covering sheet 4 is open. The opening at the head end is set to a size that allows a user to enter and exit the covering sheet 4.

[0029] The right zipper 16 includes an upper tape 16a attached to the upper sheet 10, multiple upper elements 16b provided on the upper tape 16a, a lower tape 16c attached to the lower sheet 12, and multiple lower elements 16d provided on the lower tape 16c and joined to the opposing upper elements 16b. The right zipper 16 also includes a first fastening portion 16e provided on the head side, a second fastening portion 16f provided on the foot side, and a slider body 16g that slides between the first fastening portion 16e and the second fastening portion 16f to join or release the upper element 16b and the lower element 16d together.

[0030] Similarly, the left zipper 18 includes an upper tape 18a attached to the upper sheet 10, multiple upper elements 18b provided on the upper tape 18a, a lower tape 18c attached to the lower sheet 12, and multiple lower elements 18d provided on the lower tape 18c and joined to the opposing upper elements 18b. The left zipper 18 also includes a first stop portion 18e provided on the head side, a second stop portion 18f provided on the foot side, and a slider body 18g that slides between the first stop portion 18e and the second stop portion 18f to join or release the upper element 18b and the lower element 18d together.

[0031] The upper tapes 16a, 18a and the lower tapes 16c, 18c are strip-shaped tapes formed by folding synthetic resin threads. The upper tapes 16a, 18a are attached along the outer peripheral edge of the upper sheet 10. The lower tapes 16c, 18c are attached along the inner peripheral edge of the lower sheet 12. The upper tapes 16a, 18a and the lower tapes 16c, 18c have a plurality of upper elements 16b, 18b and lower elements 16d, 18d arranged at equal intervals along the longitudinal direction. The upper elements 16b, 18b and the lower elements 16d, 18d are fastener elements made of synthetic resin and are configured to be joined to each other. First fastening portions 16e, 18e, which are starting points, are provided on the head sides of the upper elements 16b, 18b and the lower elements 16d, 18d. Further, second stop portions 16f, 18f, which are end points, are provided on the foot sides of the lower elements 16d, 18d and the lower elements 16d, 18d.

[0032] The slider bodies 16g, 18g are configured to slide along the upper elements 16b, 18b and the lower elements 16d, 18d when the user pulls the pull tab. The slider bodies 16g, 18g slide from the first stop portions 16e, 18e toward the second stop portions 16f, 18f to release the connection between the upper elements 16b, 18b and the lower elements 16d, 18d. The slider bodies also slide from the second stop portions 16f, 18f toward the first stop portions 16e, 18e to connect the upper elements 16b, 18b and the lower elements 16d, 18d.

[0033] The additional sheet 6 is a rectangular piece of fabric and is set to the same size as the upper sheet 10. Specifically, the additional sheet 6 is set to a vertical length of approximately 205 cm and a horizontal length of approximately 170 cm. The additional sheet 6 is detachably attached to the back surface of the upper sheet 10. The user can adjust their body temperature by attaching or detaching the additional sheet 6. In summer, fabric made of a cool material such as gauze or Tencel is used as the additional sheet 6. In winter, fabric made of a warm material such as wool is used as the additional sheet 6. In this embodiment, the additional sheet 6 is attached to the back surface of the upper sheet 10, but the additional sheet 6 may also be attached to the front surface of the upper sheet 10. This prevents the additional sheet 6 from coming into direct contact with the user, allowing the user to sleep comfortably.

[0034] The cover sheet 8 is a rectangular comforter that is draped over the body. The cover sheet 8 in this embodiment is double-sized, measuring approximately 210 cm in length and 150 cm in width. The cover sheet 8 is made of feathers. In this embodiment, a comforter is used as the cover sheet, but a blanket or towel blanket may also be used. In this embodiment, the cover sheet is double-sized, but it may also be single-sized or king-sized. Furthermore, in this embodiment, the cover sheet is made of feathers, but it may also be made of wool, silk, synthetic fiber, chemical fiber, etc.

[0035] Next, the cover sheet 4 of the bedding 1 according to this embodiment will be described in detail with reference to FIGS. FIG. 3 is an explanatory view showing the state of the slide fastener at the corner of the cover sheet of the bedding according to the first embodiment of the present invention, as viewed from the direction A in FIG.

[0036] 1, the slide fastener 14 is positioned in a plan view about 5 cm inward from the outer periphery of the covering sheet 4. This allows the slide fastener 14 to be covered and hidden by the overlay sheet 8 or the like.

[0037] The slide fastener 14 is bent with a larger radius of curvature at a corner 4d between the right end 4a and the foot end 4b of the covering sheet 4 and at a corner 4e between the left end 4c and the foot end 4b of the covering sheet 4 than the outer periphery of the corners 4d, 4e of the covering sheet 4. This makes it possible to prevent wrinkles from forming near the corners 4d, 4e of the covering sheet 4.

[0038] Referring to FIG. 3, the left fastener 18 is attached to the covering sheet 4 so that its plane (the plane when the upper element 18b and the lower element 18d are joined) is approximately vertical at the corner 4e of the covering sheet 4 (part X1 in FIG. 3). The left fastener 18 is attached to the covering sheet 4 so that its plane is approximately horizontal at the left end 4c of the covering sheet 4 (part X2 in FIG. 3). The left fastener 18 is attached to the covering sheet 4 so that its plane is approximately horizontal at the foot side end 4b of the covering sheet 4 (part X3 in FIG. 3). This allows the slider body 18g to slide smoothly along the corner 4e.

[0039] Similarly, the right fastener 16 is attached to the covering sheet 4 at the corner 4d of the covering sheet 4 so that its plane (the plane when the upper element 16b and the lower element 16d are joined) is approximately vertical, and is attached to the covering sheet 4 at the left end 4c and the foot end 4b of the covering sheet 4 so that it is approximately horizontal (not shown). This allows the slider body 16g to slide smoothly along the corner 4d.

[0040] Next, the additional sheet 6 of the bedding 1 according to this embodiment will be described in detail with reference to FIGS. FIG. 4 is an explanatory diagram showing the connection state of the cover sheet 4 and the additional sheet 6 of the bedding 1 according to this embodiment.

[0041] Referring to Figure 2, the additional sheet 6 is provided with loop strings 20, which are loops of string. The loop strings 20 are provided at three locations on the head side, center, and foot side at the right end 6a and left end 6c of the additional sheet 6. The loop string 20 is provided at one location in the center at the foot side end 6b of the additional sheet 6. The loop string 20 is provided on the outer periphery of the additional sheet 6 and extends outward.

[0042] The upper sheet 10 is provided with a pair of laces 22 and adjustment holes 24 through which the laces 22 are passed. The laces 22 and adjustment holes 24 are provided at three locations on the head side, center, and foot side at the right end 10a and left end 10c of the upper sheet 10. The laces 22 and adjustment holes 24 are provided at one location in the center at the foot side end 10b of the upper sheet 10. The laces 22 are provided inward from the outer periphery of the upper sheet 10, extending upward. The adjustment holes 24 are provided inward from the laces 22 and close to them.

[0043] 4, when attaching the additional sheet 6 to the back surface of the upper sheet 10, first, the strings 22 of the upper sheet 10 are passed through the adjustment holes 24. Next, one of the strings 22 is passed through the loop strings 20 of the additional sheet 6 and tied to the other string 22 (see FIG. 1). Similarly, the additional sheet 6 is attached to the back surface of the upper sheet 10 by passing the strings 22 through the loop strings 20 at other locations and tying them. Furthermore, when attaching the additional sheet 6 to the surface of the upper sheet 10, the adjustment holes 24 are not used, but one of the strings 22 is passed through the loop string 20 of the additional sheet 6 and tied to the other string 22 (not shown). Similarly, at other locations, the additional sheet 6 is attached to the surface of the upper sheet 10 by passing the string 22 through the loop string 20 and tying it.

[0044] Next, the lower sheet 12 of the bedding 1 according to this embodiment will be described in detail with reference to FIGS. FIG. 5 is an explanatory diagram showing the holding portion 26 of the cover sheet 4 of the bedding 1 according to this embodiment.

[0045] The lower sheet 12 is provided with a retaining portion 26 for preventing the covering sheet 4 from moving from its fixed position. The retaining portion 26 is a bag-shaped sheet that is open on the foot side. The retaining portion 26 is provided at the head side end 12a of the lower sheet 12. The retaining portion 26 is a rectangular piece of cloth, and is joined to the lower sheet 12 on the head side and both the left and right sides. The foot side of the retaining portion 26 is open, and the upper part of the mattress 2 is inserted through this opening. When the mattress 2 is inserted inside the retaining portion 26, the weight of the mattress 2 fixes the covering sheet 4 in place and prevents it from moving (see Figure 6).

[0046] Next, with reference to FIG. 6, a usage mode of the bedding 1 of this embodiment will be described. FIG. 6 is an explanatory diagram showing the bedding 1 according to this embodiment in use.

[0047] When going to sleep, the user first inserts the mattress 2 into the covering sheet 4. At this time, the top of the mattress 2 is positioned within the holding portion 26. Next, the user opens the right zipper 16 or the left zipper 18, enters the covering sheet 4, and lies down on the mattress 2. Next, the user closes the right zipper 16 or the left zipper 18 to get into a sleeping position (see Figure 6). When sleeping, the covering sheet 4 shrinks toward the user and the mattress 2, fitting snugly against the user's body. This prevents any gaps from forming between the user and the covering sheet 4 even when the user turns over in their sleep.

[0048] When getting up, the user first opens the right zipper 16 or the left zipper 18 to get out of the covering sheet 4. Next, the user closes the right zipper 16 or the left zipper 18. The user can enter and exit the covering sheet 4 from either the right or left side of the covering sheet 4.

[0049] The effects of the bedding 1 according to the present embodiment described above will be described below. First, in the bedding 1 according to this embodiment, the upper sheet 10 and the lower sheet 12 are detachably joined by the slide fastener 14, allowing the user to enter and exit the covering sheet 4 from the right end 4a and the left end 4c (side end) of the covering sheet 4. Furthermore, the slide fastener 14 is provided continuously at the right end 4a (side end) and the foot end 4b of the covering sheet 4, and continuously at the left end 4c (side end) and the foot end 4b, so no gaps are created between the slide fasteners. This means that cold air does not enter the covering sheet 4, allowing the user to sleep warmly. This allows the user to enter and exit the covering sheet 4 easily and provides the user with a comfortable sleep.

[0050] Furthermore, in the bedding 1 according to this embodiment, the slide fastener 14 is positioned inside the outer peripheral edge of the covering sheet 4, so that the slide fastener 14 can be covered and concealed by an overlay sheet 8 or the like, thereby improving the appearance and design of the entire bedding 1.

[0051] In the bedding 1 of this embodiment, the slide fastener 14 is bent at the corner 4e between the left end 4c and the foot side end 4b of the covering sheet 4, and at the corner 4d between the right end 4a and the foot side end 4b of the covering sheet 4, with a radius of curvature larger than that of the outer peripheral edges of the corners 4e and 4d of the covering sheet 4, thereby preventing wrinkles from occurring near the corners 4e and 4d of the covering sheet 4 and improving the overall appearance and design of the bedding 1.

[0052] Furthermore, in the bedding 1 according to this embodiment, the slide fastener 14 is attached to the covering sheet 4 so that its plane is approximately vertical at the corners 4e, 4d of the covering sheet 4 and approximately horizontal at the right end 4a, left end 4c and foot end 4b of the covering sheet 4, so that the slider body 18g can slide smoothly over the corners 4e, 4d, making it easier to open and close the slide fastener 14.

[0053] In the bedding 1 of this embodiment, the slide fastener 14 includes a right zipper 16 that is provided continuously at the right end 4a and foot end 4b of the covering sheet 4, and a left zipper 18 that is provided continuously at the left end 4c and foot end 4b of the covering sheet 4. Therefore, for example, when two people use the bedding 1, the user sleeping on the right side can easily enter and exit from the right end 4a by opening and closing the right zipper 16, and the user sleeping on the left side can easily enter and exit from the left end c by opening and closing the left zipper 18.

[0054] In the bedding 1 according to this embodiment, the first fastening portions 16e, 18e of the right zipper 16 and the left zipper 18 are provided on the head sides of the right end portion 4a and the left end portion 4c, respectively, and the second fastening portions 16f, 18f of the right zipper 16 and the left zipper 18 are provided in the centers of the foot ends. When the slider bodies 16g, 18g of the right zipper 16 and the left zipper 18 slide from the first fastening portions 16e, 18e toward the second fastening portions 16f, 18f, the upper sheet 10 and the lower sheet 12 are released from their respective positions, and when the slider bodies 16g, 18g slide from the second fastening portions 16f, 18f toward the first fastening portions 16e, 18e, the upper sheet 10 and the lower sheet 12 are joined together. This allows a user sleeping on the right side to enter and exit from the right end 4a by opening and closing the right fastener 16, and a user sleeping on the left side to easily enter and exit from the left end c by opening and closing the left fastener 18.

[0055] In the bedding 1 of this embodiment, the head side end 12a of the lower sheet 12 is provided with a bag-shaped retaining portion 26 to prevent the covering sheet 4 from moving from its fixed position, thereby preventing the covering sheet 4 from moving while sleeping.

[0056] In addition, in the bedding 1 according to this embodiment, an additional sheet 6 for regulating the user's body temperature is provided on the upper sheet 10 in a removable manner, so that the body temperature can be easily regulated by attaching and detaching the additional sheet 6.

[0057] In the bedding 1 according to this embodiment, the upper sheet 10 has strings 22 on the surface and adjustment holes 24 through which the strings 22 pass from the front side to the back side. The additional sheet 6 also has loop strings 20 through which the strings 22 pass to attach the additional sheet 6 to the upper sheet 20. This makes it possible to adjust the direction in which the strings 22 extend (back side or front side), and the additional sheet 6 can be attached to either the front or back side of the upper sheet 10.

[0058] Next, bedding 31 according to a second embodiment of the present invention will be described with reference to FIG. FIG. 7 is a top view of bedding 31 according to the second embodiment. The basic configuration of the bedding 31 according to the second embodiment is the same as that of the first embodiment described above, so only the parts that differ from the first embodiment will be described below.

[0059] The mattress 32, covering sheet 34, and top sheet 36 are all single-size, allowing for use by a single user. The slide fastener 38 is continuously and uninterrupted at the right end 34a, foot end 34b, and left end 34c of the covering sheet 34. The first fastener 38a, which is the start point of the slide fastener 38, is located on the head side of the left end 34c, and the second fastener 38b, which is the end point of the slide fastener 38, is located on the head side of the right end 34a. The slide fastener 38 opens by sliding the slider body 38c from the first fastener 38a to the second fastener 38b, thereby releasing the connection between the upper sheet 40 and the lower sheet 42. The slide fastener 38 closes by sliding the slider body 38c from the second fastener 38b to the first fastener 38a, thereby connecting the upper sheet 40 and the lower sheet 42.

[0060] In the bedding 31 according to the second embodiment, the slide fasteners 38 are provided continuously at the right end 34a, the foot end 34b, and the left end 34c of the covering sheet 34, so no gaps are formed between the slide fasteners. In other words, cold air does not enter the covering sheet 34, allowing the user to sleep warmly.

[0061] In the bedding 31 according to the second embodiment, the first fastening portion 38a of the slide fastener 38 is provided on the head side of the left end portion 34c of the covering sheet 34, and the second fastening portion 38b of the slide fastener 38 is provided on the head side of the right end portion 34a of the covering sheet 34. When the slider body 38c of the slide fastener 38 slides from the first fastening portion 38a to the second fastening portion 38b, the upper sheet 40 and the lower sheet 42 are released from their respective positions, and when the slider body 38c slides from the second fastening portion 38b to the first fastening portion 38a, the upper sheet 40 and the lower sheet 42 are joined together. This makes it easier for a right-handed user to open and close the slide fastener 38 with their right hand.

[0062] Next, bedding 44 according to a third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a top view of bedding 44 according to the third embodiment. The basic configuration of the bedding 44 according to the third embodiment is the same as that of the first embodiment described above, so only the differences from the first embodiment will be described below.

[0063] The mattress 46 and covering sheet 48 are single-sized so that they can be used by one user. The right zipper 47 is provided continuously and without interruption in a part of the head end 48d, the right end 48a, and the foot end 48b of the covering sheet 48. Similarly, the left zipper 49 is provided continuously and without interruption in a part of the head end 48d, the left end 48c, and the foot end 48b of the covering sheet 48.

[0064] In the bedding 44 according to the third embodiment, the right zipper 47 and the left zipper 49 are extended to a part of the head end 48d, thereby preventing cold air from entering from the head side of the covering sheet 48, and allowing the user to sleep with the area around the shoulders warm.

[0065] Next, bedding 51 according to a fourth embodiment of the present invention will be described with reference to Fig. 9. Fig. 9 is an explanatory diagram showing the connection state of cover sheet 52 and additional sheet 54 of bedding 51 according to the fourth embodiment of the present invention. The basic configuration of the bedding according to the fourth embodiment is the same as that of the first embodiment described above, so only the differences from the first embodiment will be described below.

[0066] Referring to FIG. 9, the additional sheet 54 is provided with a set of two mounting holes 60. The mounting holes 60 are provided at positions facing the strings 58 of the upper sheet 56. The inner peripheral edge of each mounting hole 60 is overlocked with thread. One set of mounting holes 60 is provided at three locations on the head side, center, and foot side at the right and left ends of the additional sheet 54, and one is provided at the center of the foot side end of the additional sheet. The mounting holes 60 in one set are spaced approximately 3 to 5 cm apart. This prevents the portion between the holes 60 from tearing when the strings 58 are passed through the mounting holes 60 and tied.

[0067] When attaching the additional sheet 54 to the back surface of the upper sheet 56, first, the strings 58 of the upper sheet 56 are passed through the adjustment holes 59. Next, each string 58 is passed through each mounting hole 60 of the additional sheet 54 and tied together. Similarly, the additional sheet 54 is attached to the back surface of the upper sheet 56 by passing the strings 58 through the mounting holes 60 at other locations and tying them. Furthermore, when attaching the additional sheet 54 to the surface of the upper sheet 56, the adjustment holes 59 are not used, but the strings 58 are passed through the respective attachment holes 60 of the additional sheet 54 and tied together. Similarly, the additional sheet 54 is attached to the surface of the upper sheet 56 at other locations by passing the strings 58 through the attachment holes 60 and tying them.

[0068] In the bedding 1 according to this embodiment, the upper sheet 10 has strings 58 on the surface and adjustment holes 59 through which the strings 58 pass from the front side to the back side. The additional sheet 54 also has attachment holes 60 through which the strings 58 pass to attach the additional sheet 54 to the upper sheet 56. This makes it possible to adjust the direction in which the strings 58 extend (back side or front side), and the additional sheet 54 can be attached to either the front or back side of the upper sheet 56.

[0069] Next, bedding 71 according to a fifth embodiment of the present invention will be described with reference to FIG. FIG. 10 is an explanatory diagram showing the connection state of a cover sheet 72 and an additional sheet 74 of bedding 71 according to the fifth embodiment of the present invention. The basic configuration of the bedding according to the fifth embodiment is the same as that of the first embodiment described above, so only the differences from the first embodiment will be described below.

[0070] Referring to Figure 10, circular buttons 78 are provided on the back side of the upper sheet 76. The buttons 78 are provided at multiple locations at equal intervals along the outer periphery of the upper sheet 76. The additional sheet 74 is provided with mounting holes 80 at positions facing the buttons 78 on the upper sheet 76. The mounting holes 80 are provided at multiple locations at equal intervals along the outer periphery of the additional sheet 74. The inner periphery of each mounting hole 80 is overlocked with thread.

[0071] When attaching the additional sheet 74 to the back surface of the upper sheet 76, the buttons 78 of the upper sheet 76 are inserted into the mounting holes 80. Similarly, the additional sheets 74 are attached to the back surface of the upper sheet 76 at other locations by inserting the buttons 78 into the mounting holes 80. When attaching the additional sheet 74 to the surface of the upper sheet 76, a button 78 can be provided on the front side of the upper sheet 76 and the additional sheet 74 can be attached to the surface of the upper sheet 76 by inserting the button 78 into the mounting hole 80.

[0072] The present invention is not limited to the above-described embodiments, and various changes and modifications are possible within the scope of the technical concept described in the claims. [Explanation of symbols]

[0073] 1: Bedding 2: Mattress 4: Covering sheet 6: Additional sheet 8: Top sheet 10: Upper seat 12: Lower seat 14: Slide fastener 16: Right side zipper 18: Left side zipper 20: Loop string 22: String 24: Adjustment hole 26: Holding part 60: Mounting hole 78: Button 80: Mounting hole

Claims

1. A bedding set comprising a mattress on which a user lies, and a stretchable covering sheet surrounding the user and the mattress, The covering sheet comprises an upper sheet that covers the upper surface of the mattress, a lower sheet that is joined to the upper sheet and covers the lower surface of the mattress, and a slide fastener that detachably joins the upper sheet and the lower sheet, The slide fastener is provided continuously at the side end and the foot side end of the covering sheet, The bedding is characterized in that the slide fastener is attached to the covering sheet so that its plane is approximately vertical at the corners of the covering sheet and approximately horizontal at the side ends and foot end of the covering sheet.

2. The bedding according to claim 1 , wherein the slide fastener is disposed inside the outer periphery of the covering sheet.

3. 3. The bedding according to claim 2, wherein the slide fastener is bent at a corner between the side end and the foot end of the covering sheet with a radius of curvature larger than that of the outer periphery of the corner of the covering sheet.

4. Bedding described in any one of claims 1 to 3, wherein the slide fastener comprises a right-side fastener that is provided continuously at the right end and foot end of the covering sheet, and a left-side fastener that is provided continuously at the left end and foot end of the covering sheet.

5. Bedding as described in Claim 4, wherein the right zipper and the left zipper are extended to the head side end of the covering sheet.

6. a first stop portion of the right zipper and a first stop portion of the left zipper are provided on the head side of the right end portion and the left end portion, respectively, and a second stop portion of the right zipper and a second stop portion of the left zipper are provided on the center of the foot side end portion, The bedding according to claim 4, wherein the upper sheet and the lower sheet are released from each other by sliding the slider bodies of the right and left zippers from the first stop portion toward the second stop portion.

7. The bedding according to any one of claims 1 to 3, wherein the head side end of the lower sheet is provided with a bag-shaped retaining portion for preventing the covering sheet from moving from its fixed position.

8. 4. The bedding according to claim 1, wherein the upper sheet is provided with a detachable additional sheet for regulating the user's body temperature.

9. The bedding described in claim 8, wherein the upper sheet has a string on its surface and an adjustment hole through which the string passes from the front side to the back side, and the additional sheet has an attachment hole or a loop string through which the string passes to attach the additional sheet to the upper sheet.

10. The bedding according to any one of claims 1 to 3, wherein the slide fastener is provided continuously at the right end, the foot end, and the left end of the covering sheet.

11. The first stop of the slide fastener is provided on the head side of the left end portion, and the second stop of the slide fastener is provided on the head side of the right end portion, The bedding according to claim 10, wherein the slider body of the slide fastener slides from the first stop toward the second stop, thereby releasing the connection between the upper sheet and the lower sheet, and the slider body slides from the second stop toward the first stop, thereby joining the upper sheet and the lower sheet.

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