JP2021007667A - Down quilt - Google Patents

Abstract

To provide a down quilt capable of improving thermal insulation and convenience without increasing an amount of used feathers.SOLUTION: A down quilt has a futon body 5 sewn into a bag shape. The futon body is formed by a surface side cloth 2, a reverse side cloth 3 which is provided for a lower surface side of the surface side cloth and whose peripheral part is sewn to a peripheral part of the surface side cloth; a belt-like partition cloth 4 which has a prescribed width dimension and divides and forms between the surface side cloth and the reverse side cloth a plurality of space parts where an upper end in the width direction is connected to the surface side cloth, a lower end is connected to the back side cloth, and feathers are filled. Of the space parts, the space part formed in the central part in the width direction of the futon body is filled with more feathers than the other space parts per unit volume.SELECTED DRAWING: Figure 4

Description

The present invention relates to a duvet in which feathers are filled inside a duvet body in which the front side fabric and the back side fabric are sewn in a bag shape.

Generally, in a duvet used as a comforter, the front side fabric and the back side fabric are overlapped and their peripheral parts are sewn together to form a bag-shaped duvet body, and feathers as a filling material are placed in the space inside the duvet body. It is formed by filling.

If the space is simply filled with feathers, the feathers will be biased or crushed inside the duvet body during use. Therefore, by partitioning the space portion into a plurality of space portions by a band-shaped partition cloth (kusu cloth) having a predetermined height dimension, it is possible to prevent the feathers from being greatly biased or crushed.

Duvets with such a structure are widely used by many people because of their excellent heat retention, even though they are significantly lighter than conventional comforters made of cotton. It's coming.
On the other hand, as the demand for duvets has increased, the supply of high-quality feathers has become tight, and the price of feathers has risen significantly, which has led to a rise in the price of duvets.

By the way, in order to improve the performance of the duvet, particularly the heat retention property, it is achieved by increasing the amount of feathers filled in the plurality of spaces partitioned by the partition cloth, that is, the filling amount per unit volume. be able to.

Further, in order to improve the heat retention of the duvet, when the user hangs the duvet, the peripheral portion of the duvet excluding the user's head side can easily come into contact with the upper surface of the mattress without a gap. It is conceivable to improve the heat retention by preventing the intrusion of drafts.

Japanese Patent No. 5264358 Japanese Unexamined Patent Publication No. 2019-25194

Patent Document 1 and Patent Document 2 indicate that a plurality of space portions are formed in the duvet body of the duvet by a partition cloth, and the space portions are filled with feathers to obtain the heat retention of the duvet. Has been done.

However, simply uniformly filling the plurality of spaces with a predetermined amount of feathers only improves the heat retention property in proportion to the amount of the feathers filled. That is, the heat retention of the duvet depends on the amount of feather filling.

Therefore, in order to improve the heat retention of the duvet, the amount of feathers used is significantly increased, and in order to improve the heat retention, the cost of the duvet is significantly increased.

When the user hangs a duvet and uses it, the heat retention of the duvet ensures that the peripheral portion of the duvet body comes into contact with the upper surface of the mattress, and it is difficult for drafts to enter between the peripheral portion and the mattress. It is known that it can be improved by doing so.

By the way, in the conventional duvet, in order to prevent a gap from being formed between the peripheral portion of the duvet body and the upper surface of the mattress, for example, the duvet body may be made sufficiently larger than the mattress. When the user hangs the duvet, it has been practiced to prevent a gap from being formed between the peripheral portion of the duvet body and the upper surface of the mattress.

However, simply increasing the size of the duvet will increase the amount of feathers used in the duvet, which also leads to a significant increase in cost, which is not practical. There is.

Moreover, if the duvet is simply enlarged, the feeling of clinging the duvet given to the user when turning over is increased, which may lead to a decrease in sleeping comfort.

The present invention is to provide a duvet capable of improving heat retention without increasing the amount of feathers used.

An object of the present invention is to provide a duvet in which a gap is unlikely to occur between a peripheral portion of the duvet and the upper surface of the mattress without increasing the size of the duvet body.

The present invention is a duvet having a duvet body sewn in a bag shape.
The futon body
Front side fabric and
A back fabric provided on the lower surface side of the front fabric and a peripheral portion sewn to the peripheral portion of the front fabric, and a back fabric.
A plurality of space portions having a predetermined width dimension, the upper end in the width direction of which is connected to the front side fabric and the lower end of which is connected to the back side fabric and filled with feathers, are formed between the front side fabric and the back side fabric. Formed by a partition cloth that is compartmentalized between
Among the plurality of the space portions, the space portion formed in the central portion in the width direction of the futon body is filled with the feathers in a larger amount per unit volume than the space portion of the other portion. It is in the characteristic duvet.

The present invention is a duvet having a duvet body sewn in a bag shape.
The futon body
Front side fabric and
A back fabric provided on the lower surface side of the front fabric and a peripheral portion sewn to the peripheral portion of the front fabric, and a back fabric.
A plurality of space portions having a predetermined width dimension, the upper end in the width direction of which is connected to the front side fabric and the lower end of which is connected to the back side fabric and filled with feathers, are formed between the front side fabric and the back side fabric. Formed by a partition cloth that is compartmentalized between
When the plurality of spaces are filled with feathers, the upper surface side of the futon body is convex along at least the width direction of the width direction and the longitudinal direction, and the lower surface side is at least the width direction of the width direction and the longitudinal direction. The duvet is characterized in that the area of the front side fabric is set to be larger than the area of the back side fabric so as to be concave along the line.

In the present invention, among the space portions formed in the futon body, the space portion formed in the central portion in the width direction has more feathers per unit volume than the space portion formed in other portions. I tried to fill it.

That is, since the heat retaining effect of the user's body by the futon body is greatest in the central portion in the width direction of the futon body, more feathers are provided in the space portion in the central portion in the width direction of the futon body than in other parts. By filling, the user can effectively experience the heat retaining effect according to the amount of feathers filled in the space.

In other words, if the amount of feathers per unit volume filled in the space in the central part in the width direction formed in the futon body is increased, it is sufficient to reduce the amount of feathers in the space in other parts. Since a good heat retention effect can be obtained, a sufficient heat retention effect can be obtained without increasing the amount of feathers used as a whole.

In the present invention, when the front side fabric and the peripheral portion of the back side fabric of the futon body are sewn together to fill the space with feathers, the futon body has the upper surface side at least in the width direction and the longitudinal direction. The area of the front side fabric is set to be larger than the area of the back side fabric so that the lower surface side is curved in a concave shape at least in the width direction.

Therefore, the duvet hung on the user has a convex upper surface side and a concave lower surface side, and the peripheral portion comes into contact with the upper surface of the mattress, which makes it difficult for outside air to enter from the peripheral portion of the duvet body. Therefore, the heat retention effect can be improved without increasing the amount of feathers used.

Since the lower surface side of the futon body is concave, a space is likely to be created on the lower surface side, so that it becomes difficult for the futon body to cling to the user when turning over, so that pressure is applied to the user's body. It may be reduced, or it may be easier to turn over, that is, the comfort of sleeping may be improved.

The plan view of the duvet which shows the 1st Embodiment of this invention. A side view of the duvet shown in FIG. 1 as viewed from one end side in the longitudinal direction indicated by the arrow A. A side view of the duvet shown in FIG. 1 as viewed from one end side in the width direction indicated by the arrow B. A cross-sectional view taken along the longitudinal direction of the central portion of the duvet in the width direction shown in FIG. The figure explaining the ratio of the length of the curved part and the straight part of a partition cloth. Schematic of the duvet cover attached to the duvet. The figure which connected the attachment member provided in the duvet and the connecting member provided in the duvet cover by the auxiliary member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of the duvet 1 used as a comforter as viewed from the upper surface side, FIG. 2 is a side view of the duvet 1 as viewed from one side in the width direction, and FIG. 3 is a longitudinal view of the duvet 1 which is also on the user's head side. It is an end view seen from one end side of a direction.

FIG. 4 is an enlarged cross-sectional view of the central portion of the duvet 1 in the width direction along the longitudinal direction, and the duvet 1 has the front side fabric 2, the back side fabric 3, and a predetermined width dimension (height dimension). It has a futon body 5 composed of a band-shaped partition cloth 4 having the cloth.

In the futon body 5, the lower end of the partition cloth 4 in the width direction is sewn on the upper surface of the back side cloth 3, the upper end in the width direction is sewn on the lower surface of the front side cloth 2, and the front side cloth 2 and the same. The peripheral portion with the back side fabric 3 is sewn over the entire length.

As shown in FIG. 1, a portion of the front side fabric 2 and the back side fabric 3 forming one end side in the longitudinal direction of the futon body 5 is formed on a concave curved surface 8, and one end on both sides in the width direction is the concave curved surface. It is formed on a pair of first convex curved surfaces 9 which are continuous at one end and the other end of 8.

The other end of the pair of the first convex curved surfaces 9, that is, the other end of the front side fabric 2 and the back side fabric 3 in the longitudinal direction, that is, the other end side of the duvet body 5, is from the first convex curved surface 9. Is also formed on the second convex curved surface 11 that is curved with a large curvature.

The partition cloth 4 provided between the front side cloth 2 and the back side cloth 3 forms a plurality of space portions inside the futon body 5. Specifically, in the central portion of the futon body 5 in the width direction, four first space portions 13a to 13d divided in the longitudinal direction are formed by the partition cloth 4 as shown in FIGS. 1 and 4. Has been done.

The two first space portions 13a and 13d located on one end side and the other end side in the longitudinal direction of the futon body 5 have a trapezoidal planar shape, respectively, and the two first spaces are located between them. The planar shapes of the space portions 13b and 13c of the above are formed in a hexagonal shape, that is, a hexagonal shape, respectively.

On both sides of the first space portion 13a to 13d in the width direction of the futon body 5, four second space portions 14a to 14d are partitioned by the partition cloth 4 over the entire length in the longitudinal direction.

Each of the second space portions 14a located on the upper end side in the longitudinal direction of the futon body 5 has a substantially quadrangular shape, and the two second space portions 14a and one first space portion located between them. The space portion 13a of 1 occupies the entire length in the width direction on one end side in the longitudinal direction of the futon body 5.

On the lower side of the two second space portions 14a (the other end side in the longitudinal direction of the futon body 5), the second space portion 14a has an inverted trapezoidal shape having a width dimension smaller than that of the second space portion 14a. The space portion 14b is formed. The hexagonal second space 14c is adjacent to the lower side of the second space 14b, and the hexagonal second space 14d is sequentially adjacent to the lower side of the second space 14c. It is divided into sections.

Note that FIG. 4 shows a partition cloth 4 for partitioning the space portion, but FIGS. 1 to 3 show the partition cloth 4 formed by adhering the upper end of the partition cloth 4 in the width direction to the front side cloth 2. The suture line 4a to be formed is indicated by a solid line indicating line, and the partition cloth 4 is indicated by a broken line indicating line.

The partition cloth 4 on one side in the width direction of the first space portions 13a to 13d and on one side in the width direction of the second space portions 14a to 14d in contact with the first space portions 13a to 13d It is shared. That is, it is formed by the same partition cloth 4.

A third space portion is formed on both outer sides of the second space portion 14a to 14d in the width direction of the futon body 5 from the lower side of the second space portion 14a to the lower end of the futon body 5. The space portions 15a to 15c of the above are partitioned by the partition cloth 4.

The third space portion 15a located on one end side in the longitudinal direction of the futon body 5 has a pentagonal shape, and one of the two sides of the third space portion 15a shares the partition cloth 4 forming one side of the second space portion 14b. On the other hand, the partition cloth 4 forming one side of the second space portion 14c is shared by the other.

The third space portion 15b is also pentagonal, and one of the two sides shares the partition cloth 4 forming one side of the second space portion 14c, and the other side is one side of the second space portion 14d. The partition cloth 4 forming the above-mentioned partition cloth 4 is shared.

The third space portion 15c having one side adjacent to the third space portion 15b has a substantially triangular shape with a convex curved surface on one outer side, and one side of the third space portion 14d is one side of the second space portion 14d. The partition cloth 4 forming the above-mentioned partition cloth 4 is shared.

The concave curved surface 8 formed on one end side of the futon body 5 is formed by the upper side of the first space portion 13a and the pair of the second space portions 14a. The pair of the first convex curved surfaces 9 is formed by the second space portion 14a and each side side of the third space portions 15a, 15b and 15c on one side in the width direction.

The second convex curved surface 11 is a lower side of the first space portion 13d, a pair of lower sides of the second space portion 14d, and a side of the pair of third space portions 15c of the first convex curved surface 9. It is formed by a part of the side. That is, the side side of the third space portion 15c forms both the first convex curved surface 9 and the second convex curved surface 11.

As shown in FIG. 5, the partition cloth 4 is sequentially formed with a plurality of arch-shaped convex curved portions 18 whose upper ends are sewn to the front side fabric 2 and whose upper ends are curved upward, and the lower ends are the convex curves. Each portion corresponding to the portion 18 is formed in the concave curved portion 19. The radius of curvature of the concave curved portion 19 is set to be sufficiently larger than that of the convex curved portion 18. The concave curved portion 19 may be linear.

As shown in FIG. 5, the length of the concave curved portion 19 of the partition cloth 4 forming one side of one space is L1, and the curve of the partition cloth 4 forming one side of one space. Assuming that the length of the portion 18 is L2, the ratio L1: L2 of these lengths is set to approximately 1: 1.5 in this embodiment.

The front side fabric 2 is sewn to the curved portion 18 of the partition cloth 4 that forms the first to third space portions, and the back side fabric 3 forms the partition that forms the first to third space portions. It is sewn to the concave curved portion 19 of the cloth 4.

Therefore, the length dimension of the front side fabric 2 sewn along the curved portion 18 along the width direction and the longitudinal direction of the duvet body 5 is sewn along the concave curved portion 19 of the partition cloth 4. It is necessary to have 1.5 times the length dimension of the back side cloth 3 in the width direction and the longitudinal direction of the cloth body 5.

That is, the lower end openings of the plurality of first to third space portions 13a to 13d, 14a to 14d, and 15a to 15c, which are partitioned by the partition cloth 4 in the futon body 5, are flat by the back side cloth 3. The upper end opening is closed when the front side fabric 2 is sewn along the curved portion 18 at the upper end of the partition cloth 4.

As a result, when the feathers F are filled with the compressed air in the first to third space portions 13a to 13d, 14a to 14d, and 15a to 15c, the front side fabric 2 that closes the upper end opening of these space portions. Will expand in a dome shape along the curved portion 18 formed at the upper end of the partition cloth 5.

When each portion of the front side fabric 2 that closes the upper end opening of each space portion expands in a dome shape, the expansion causes the futon body 5 to have an upper surface in both the longitudinal direction shown in FIG. 2 and the width direction shown in FIG. The entire side is a convex curved surface 20, and the entire lower surface side is curved to a concave curved surface 21.

When the user hangs the futon body 5 curved in the width direction and the longitudinal direction in this way, in the width direction, it becomes a concave curved surface 21 and both ends in the width direction curved downward are not shown on the upper surface of the mattress. Will hit.
As a result, it is difficult for a gap to be formed between both ends of the futon body 5 in the width direction and the upper surface of the mattress, so that the heat retention in the width direction is improved.
On the other hand, in the longitudinal direction, one end side (upper end side) of the concave curved surface 21 in the longitudinal direction surely covers the collar of the user, and the other end side (lower end side) covers the feet.

Therefore, as in the width direction, it is difficult for a gap to be formed between one end of the futon body 5 in the longitudinal direction and the collar of the user, and between the other end and the upper surface of the mattress. The heat retention will be improved.

When the feathers F are filled in the first to third space portions 13a to 13d, 14a to 14d, and 15a to 15c of the futon body 5, the filling amount per unit volume of the feathers is set for each space portion. Will be done.

In this embodiment, among the first to third space portions, the first space portions 13a to 13d are filled with the largest amount of feathers per unit volume, then the second space portions 13a to 13d, and then the second space portions 13a to 13d. The filling amount of the feather F is set in the order of the third space portions 15a to 15c.

That is, the first space portions 13a to 13d in the central portion of the futon body 5 in the width direction are filled with the largest number of feathers F, followed by the second space portions 14a to 14d and the third space portions 15a to. The order is 15c.

Normally, the central portion of the futon body 5 in the width direction is hung on the body of the user who lies on the mattress and goes to bed. Therefore, the heat retention of the futon body 5 is greatly affected by the amount of feathers F filled in the first space portions 13a to 13d, which is the central portion in the width direction thereof.

As a result, the amount of feathers filled in the first space portions 13a to 13d per unit volume is made larger than that of the other space portions, so that the heat retention that the user perceives can be improved.

For example, the amount of feather F filled in the first space portions 13a to 13d per unit volume is set as a normal filling amount, and the second space portions 14a to 14d and the third space portions 15a to 15c are filled. Even if the amount of feathers F to be filled is reduced, the duvet 1 makes it possible to obtain a normal heat retaining effect. In other words, it is possible to obtain good heat retention even if the amount of feathers used is reduced as a whole.

Both sides of the futon body 5 in the width direction are formed on the first convex curved surface 9. Therefore, when the user rolls over with the futon body 5 hung, one end side of the futon body 5 in the width direction of the futon body 5 tends to slide along the upper surface of the mattress.

As a result, the futon body 5 is less likely to cling to the user's body and get caught in the body, so that it becomes easier to turn over while sleeping, and it is possible to improve the sleeping comfort.

Both sides of the futon body 5 in the width direction are formed on the first convex curved surface 9, and the other end side in the longitudinal direction is formed on the second convex curved surface 11, and the futon body 5 has a hexagonal shape as a whole.

Therefore, the overall planar shape of the futon body 5 can be made smaller than that of the case where the futon body 5 is formed in a rectangular shape, and the amount of feather F used can be reduced accordingly. That is, as described above, the amount of feather F used can be reduced without causing a decrease in heat retention.

As shown by a chain line in FIG. 1, the duvet body 5 is fitted with a duvet cover 22 having a planar shape substantially the same as that of the duvet body 5 and formed in a rectangular bag shape capable of accommodating the duvet body 5. To.
As shown in FIG. 1, a plurality of loop-shaped mounting members 23 are provided at predetermined intervals in the circumferential direction around the futon body 5, and are further mounted at the boundary between the first space portions 13a and 13b. A member 23 is provided.

A plurality of the connecting members 24 shown in FIG. 6 are provided at predetermined intervals in the circumferential direction on the inner peripheral portion of the duvet cover 22 mounted on the duvet main body 5. The base end of the connecting member 24 is sewn to the duvet cover 22, and the tip thereof is divided into two, and the tip portion thereof can be disassembled and connected by the hook 25.

The duvet cover 22 mounted on the duvet body 5 is a connecting member provided on the inner peripheral portion of the duvet cover 22 on a plurality of loop-shaped attachment members 23 provided on the peripheral portion of the duvet body 5. 24 is anchored and held. The base end of the connecting member 24 is sewn to the duvet cover 22, and the tip thereof is divided into two, and the tip portion thereof can be disassembled and connected by the hook 25.

As a result, if the connecting member 24 is connected to the mounting member 23 by the hook 25, the duvet cover 22 can be mounted and held so as not to shift to the duvet body 5.

As described above, the mounting member 23 is the boundary portion between 13a and 13b of the first space portion formed in the center of the outer surface of the futon body 5 in the width direction, and the end of the second convex curved surface 11. It is also provided in the department.

Because the distance between the mounting member 23 provided at the boundary portion and the end portion of the second convex curved surface 11 and the connecting member 24 provided inside the futon body 5 is large and cannot be directly connected. , An auxiliary member 27 is used when connecting these.

As shown in FIG. 6, the auxiliary member 27 is provided with removable hooks 26 at both ends of the string member, and by connecting these hooks 26, the auxiliary member 27 has a loop-like structure, and the attachment member has an intermediate portion. The mounting member 23 and the connecting member 24 can be connected by passing through the 23 and passing one of the end portions through the connecting member 24 which is connected by the hook 25 to form a loop.

In this embodiment, the case where a commercially available rectangular bag-shaped duvet cover 22 is used has been described, but the duvet cover 22 has a shape similar to the plane shape of the duvet body 5, that is, a turtle shell shape. If so, the plurality of mounting members 23 provided in the peripheral portion of the duvet body 5 are connected to the plurality of mounting members 23 provided in the turtle-shaped duvet cover without using the auxiliary member 27. can do.

However, also in this case, when the mounting member 23 is provided at a position other than the peripheral portion of the futon body 5, the auxiliary member is used to connect the mounting member 23 at that portion to the connecting member 24. You can do it.

According to the duvet 1 having the above-described configuration, the inside of the duvet body 5 is divided into the first to third space portions 13a to 13d, 14a to 14d, and 15a to 15c by the partition cloth 4, and the duvet The feathers F filled in the first space portions 13a to 13d formed in the central portion in the width direction of the main body 5 are sequentially formed on both sides of the first space portions 13a to 13d. The amount per unit volume is larger than the amount of feathers F filled in the space portions 14a to 14d and 15a to 15c.

When the duvet 1 having such a configuration is hung on the user's body lying on the mattress, the first space portions 13a to 13d cover the user's body. Therefore, the first space portions 13a to 13d filled with more feathers F than the second and third space portions 14a to 14d and 15a to 15c can give a good heat retaining effect to the user.

In other words, it is possible to reduce the amount of feather F filled in the second and third space portions 14a to 14d and 15a to 15c, which does not significantly affect the heat retention property given to the user, per unit volume. Even if the amount of feathers used for the entire duvet 1 is reduced, good heat retention can be obtained.

By reducing the amount of feathers F filled in the second and third space portions 14a to 14d and 15a to 15c, the second and third space portions 14a to 14d and 15a to the duvet 1 Since the weight of the 15c portion is reduced, when the user rolls over, it may be easier to turn over due to the weight reduction.

The duvet 1 sets the area of the front side fabric 2 to be larger than the area of the back side fabric 3, and the front side fabric 2 is formed on the arched curved portion 18 of the partition cloth 4 and is simply sewn. The back side fabric 3 is sewn to the concave curved portion 19 at the lower end, which has a shorter length than the curved portion 18.

Therefore, when the peripheral portions of the front side fabric 2 and the back side fabric 3 are sewn and the first to third space portions 13a to 13d, 14a to 14d, and 15a to 15c are filled with feathers F, the duvet body 5 becomes On the upper surface side, each side forming each of the space portions is deformed along the arch-shaped curved portion 18 of the partition cloth 4, and the upper surface of each space portion is curved in a convex curved surface shape.

On the other hand, the lower surface of the futon body 5 is hardly deformed for each space because the lower end of the partition cloth 4 is the concave curved portion 19, but the upper surface side is curved in a convex curved surface shape, so that the lower surface side is curved. It curves concavely along the width and length directions.

When the upper surface side of the futon body 5 is curved convexly and the lower surface side is curved concavely, when the futon body 5 is hung on a user lying down on the mattress, it is covered with the concavely curved lower surface side of the futon body 5. The damaged space is easily shielded from the outside.
As a result, it is difficult for outside air to enter the inside of the futon body 5, so that the futon body 5 can be used in a state of high heat retention.

The futon body 5 has a three-dimensional shape in which the upper surface side is curved convexly and the lower surface side is curved concavely. Therefore, since the futon body 5 is hard to cling to the user's body, it gives the user a feeling of light weight and makes it easier to turn over. Therefore, it is possible to improve the sleeping comfort.

In the above-described embodiment, the upper surface and the lower surface of the futon body 5 are configured to be curved in both the width direction and the longitudinal direction, respectively. For example, the futon of the partition cloth 4 forming the space portion. The radius of curvature of the curved portion 18 at the upper end along the width direction of the main body 5 and the curved portion 18 at the upper end along the longitudinal direction is changed, and the length dimension along the longitudinal direction and the width direction of the duvet main body 5 of the front side fabric 2. To change.

As a result, when the feathers F are filled in each space of the futon body 5, the degree of curvature in the longitudinal direction and the width direction is changed, such as bending the futon body 5 only in the width direction or in the width direction rather than the longitudinal direction. You may do so.

That is, if the futon body 5 has a structure that is curved at least in the width direction, the heat retention can be improved. Therefore, the structure may have such a three-dimensional shape when the feathers F are filled.

In the partition cloth 4, the lower end of each of the portions forming the first to third space portions 13a to 13d, 14a to 14d, and 15a to 15c is the concave curved portion 19, and the upper end is the arched curved portion. It is formed at 18.

Therefore, the first to third space portions 13a to 13d, 14a to 14d, and 15a to 15c, each of which is composed of a plurality of space portions, expands independently in a dome shape when the feathers F are filled. By doing so, it is possible to improve the heat retention, improve the overall volume, and further improve the appearance.

The width dimensions of the one end side and the other end side of the futon body 5 in the longitudinal direction are formed so as to gradually become narrower toward the end in the longitudinal direction.

In this embodiment, the first convex curved surface 9 is formed on both side surfaces of the futon body 5 in the width direction, and the second convex curved surface 11 is formed on the other end in the longitudinal direction located on the foot side of the user. By doing so, the width dimensions of the one end side and the other end of the futon body 5 are gradually narrowed toward the end in the longitudinal direction.

As a result, since the entire planar shape of the comforter body 5 is a hexagonal shape, the area along the longitudinal direction of the central portion in the width direction covering the user's body is substantially the same as that of the conventional comforter having a rectangular planar shape. Can be.

That is, even if the overall size of the duvet body 5 is made smaller than that of the conventional rectangular one, the duvet 1 having almost the same heat retention effect can be obtained, so that the duvet body 5 can be made smaller by the amount that can be made smaller. , The amount of feather F used can be reduced, and the cost can be reduced.

If both sides of the futon body 5 are formed on the first convex curved surface 9 and the other end in the longitudinal direction is formed on the second convex curved surface 11, the peripheral portion of the futon body 5 when the user rolls over. However, it becomes difficult for the user to cling to the surface, and it is possible to easily turn over, so that the comfort of sleeping can be improved.

The width dimension of both the one end side and the other end portion of the futon body 5 in the longitudinal direction is formed so as to gradually become narrower toward the end portion in the longitudinal direction, but either one in the longitudinal direction is formed. Only the end of the hood may be formed to become narrower towards the end in the longitudinal direction.

In the above-described embodiment, the planar shape of the space formed by the partition cloth 4 between the front side cloth 2 and the back side cloth 3 of the futon body 5 is mainly a hexagonal shape (turtle shell shape). The planar shape of is may be another polygonal shape such as a quadrangular shape or a pentagonal shape.

1 ... comforter (duvet), 2 ... front side fabric, 3 ... back side fabric, 4 ... partition cloth, 5 ... duvet body, 8 ... concave curved surface, 9 ... first convex curved surface, 11 ... second convex curved surface, 13a ~ 13d ... 1st space part, 14a ~ 14d ... 2nd space part, 15a ~ 15c ... 3rd space part, 18 ... curved surface, 19 ... straight line, 22 ... duvet cover, 23 ... mounting member, 24 ... connection Member, 27 ... Auxiliary member.

Claims (7)

A duvet with a bag-shaped sewn duvet body,
The futon body
Front side fabric and
A back fabric provided on the lower surface side of the front fabric and a peripheral portion sewn to the peripheral portion of the front fabric, and a back fabric.
A plurality of space portions having a predetermined width dimension, the upper end in the width direction of which is connected to the front side fabric and the lower end of which is connected to the back side fabric and filled with feathers, are formed between the front side fabric and the back side. Formed by a partition cloth that is partitioned between the fabrics,
Among the plurality of the space portions, the space portion formed in the central portion in the width direction of the futon body is filled with the feathers in a larger amount per unit volume than the space portion of the other portion. The characteristic duvet. A duvet with a bag-shaped sewn duvet body,
The futon body
Front side fabric and
A back fabric provided on the lower surface side of the front fabric and a peripheral portion sewn to the peripheral portion of the front fabric, and a back fabric.
A plurality of space portions having a predetermined width dimension, the upper end in the width direction of which is connected to the front side fabric and the lower end of which is connected to the back side fabric and filled with feathers, are formed between the front side fabric and the back side. Formed by a partition cloth that is partitioned between the fabrics,
When the feathers are filled in the plurality of spaces, the upper surface side of the duvet body is convex along at least the width direction in the width direction and the longitudinal direction, and the lower surface side is at least the width in the width direction and the longitudinal direction. A duvet characterized in that the area of the front side fabric is set to be larger than the area of the back side fabric so as to be concave along the direction. The upper end of the partition cloth is formed in an arch-shaped curve that is curved upward, the lower end is formed in a straight line, and the front side fabric is connected along the curve of the partition cloth. The duvet according to claim 2, wherein the back side fabrics are connected along the straight line. The space portion formed in the futon body is
A first space formed in the central portion of the futon body in the width direction,
A second space portion formed outside the width direction of the futon body with respect to the first space portion and set to have a smaller amount of feather filling per unit volume than the first space portion.
It is characterized by including a third space portion formed outside the width direction of the futon body with respect to the second space portion and set to have a smaller amount of feather filling per unit volume than the second space portion. The duvet according to claim 1 or 2. Claims 1 to claim that the width dimension of at least one of the one end side and the other end side of the futon body in the longitudinal direction is formed so as to gradually become narrower toward the end in the longitudinal direction. The duvet according to any one of 4. It has a duvet cover that covers the duvet body, a loop-shaped attachment member is provided around the duvet body, and the duvet cover is provided with a connecting member that is connected to the attachment member.
The duvet according to claim 5, wherein the connecting member of the duvet cover is connected to the mounting member provided on the convex curved surface formed at the end of the duvet body via an auxiliary member. .. A duvet with a bag-shaped sewn duvet body,
The futon body
Front side fabric and
A back fabric provided on the lower surface side of the front fabric and a peripheral portion sewn to the peripheral portion of the front fabric, and a back fabric.
A plurality of space portions having a predetermined width dimension, the upper end in the width direction of which is connected to the front side fabric and the lower end of which is connected to the back side fabric and filled with feathers, are formed between the front side fabric and the back side fabric. Formed by a partition cloth that is compartmentalized between
Among the plurality of the space portions, the space portion formed in the central portion in the width direction of the futon body is filled with the feathers in a larger amount per unit volume than the space portion of the other portion.
When the feathers are filled in the plurality of spaces, the upper surface side of the duvet body is convex along at least the width direction in the width direction and the longitudinal direction, and the lower surface side is at least the width in the width direction and the longitudinal direction. A duvet characterized in that the area of the front side fabric is set to be larger than the area of the back side fabric so as to be concave along the direction.

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