JP7027377B2 - Duvet - Google Patents

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 they are much lighter than conventional comforters made of cotton, but they have excellent heat retention. 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 sharply, which has led to the 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 except for the user's head side can easily come into contact with the upper surface of the mattress without any 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 a duvet body of a duvet by a partition cloth, and the space portions are filled with feathers to obtain 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 filling amount of the feathers. That is, the heat retention of the duvet depends on the filling amount of the feathers.

Therefore, in order to improve the heat-retaining property of the duvet, the amount of feathers used will be significantly increased, and in order to improve the heat-retaining property, the cost of the duvet will be significantly increased.

When the user hangs the duvet and uses it, the heat retaining property of the duvet ensures that the peripheral portion of the duvet body is in 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 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 is possible 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 to 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.

The present invention is to provide a duvet in which a gap is unlikely to occur between the peripheral portion thereof 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 is
Front side fabric and
The back side fabric provided on the lower surface side of the front side fabric and the peripheral portion is sewn to the peripheral portion of the front side fabric, and the back side fabric.
A strip having a predetermined width dimension, the upper end in the width direction is connected to the front side fabric, the lower end is connected to the back side fabric, and a plurality of spaces filled with feathers are formed on the front side fabric and the back side. Formed by a partition cloth that is partitioned between the fabrics,
The space part is
A first space portion formed in a plurality of parts along the longitudinal direction in the central portion in the width direction of the futon body, and a first space portion.
A second space portion formed in a plurality of parts along the longitudinal direction on both sides of the first space portion, and a second space portion.
It is composed of a third space portion formed in a plurality of parts along the longitudinal direction on both sides of the second space portion.
In the partition cloth, each upper end portion sewn to the lower surface of the front side fabric is formed in a convex curved portion, and each lower end portion sewn to the upper surface of the back side fabric is formed in a concave curved portion or a linear portion. Has been
By filling the first to third spaces with feathers, each portion of the front side fabric that closes the upper end opening of the first to third spaces is formed at the upper end of the partition cloth. It expands to a convex curved surface along the convex curved portion, and the entire upper surface of the futon body is curved to a convex curved surface in both the width direction and the longitudinal direction, and the entire lower surface is curved to a concave curved surface according to the curvature of the upper surface. It is in a duvet characterized by its composition .

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 retaining 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. 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 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. FIG. 1 is 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 diagram 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 seen from the upper surface side, FIG. 2 is a side view of the duvet 1 as seen from one side in the width direction, and FIG. 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 in the width direction of the partition cloth 4 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 like. 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 formed on the second convex curved surface 11 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 as shown in FIGS. 1 and 4 are partitioned by the partition cloth 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 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 rectangular shape, and the two second space portions 14a and one second 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, and FIG. 1 shows a suture formed by adhering the upper end of the partition cloth 4 in the width direction to the front side cloth 2. The line 4a is indicated by a solid indicator line, and the partition cloth 4 is indicated by a broken line indicator 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.

On both outer sides of the second space portion 14a to 14d in the width direction of the futon body 5, a third space portion composed of three space portions extending 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 shares the partition cloth 4 forming one side of the second space portion 14b. The other side shares the partition cloth 4 forming one side of the second space portion 14c.

The third space portion 15b is also pentagonal, one of the two sides shares the partition cloth 4 forming one side of the second space portion 14c, and the other 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 having 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 first convex curved surface 9 of the pair of third space portions 15c. 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, in the partition cloth 4, a plurality of arch-shaped convex curved portions 18 having an upper end sewn to the front side fabric 2 curved upward in a convex shape are sequentially formed, and the lower end is the convex curve. 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 convex of the partition cloth 4 forming one side of one space. Assuming that the length of the curved portion 18 is L2, in this embodiment, the ratio L1: L2 of these lengths is set to approximately 1: 1.5.

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

Therefore, the length dimension of the front side fabric 2 sewn along the convex 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. The back side fabric 3 requires 1.5 times the length dimension of the duvet body 5 in the width direction and the longitudinal direction.

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 by the front side fabric 2 being sewn along the convex 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, respectively, the front side fabric 2 that closes the upper end opening of these space portions. Will expand in a dome shape along the convex 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 the upper surface of the mattress (not shown). Will hit.
As a result, it becomes 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, a gap is less likely to occur 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 duvet main 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, followed by 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 most feathers F, and then 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 retaining property 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 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 taken 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 the feather F to be filled is reduced, the normal heat-retaining effect can be obtained by the duvet 1. 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, since 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, 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 the chain line in FIG. 1, the duvet main body 5 is equipped with a duvet cover 22 having a planar shape substantially the same as that of the duvet main body 5 and formed in a rectangular bag shape capable of accommodating the duvet main 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 peripheral portion of the futon body 5, and are further mounted at the boundary portion 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 mounting members 23 provided on the peripheral portion of the duvet body 5. 24 is attached 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 main 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 structure is formed into a loop shape, and the middle portion is the mounting member. By passing through 23 and passing one of the ends through the connecting member 24 which is connected by the hook 25 to form a loop, the mounting member 23 and the connecting member 24 can be connected.

In this embodiment, a case where a commercially available rectangular bag-shaped duvet cover 22 is used as the duvet cover 22 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 the mounting members 23 provided in the peripheral portion of the duvet main body 5 are connected to the plurality of the 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 is used. 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 of feathers F to be filled in the space portions 14a to 14d and 15a to 15c is larger than the amount of feathers F per unit volume.

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 insulating 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 by 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 sewn to the upper end formed in the arch-shaped convex curved portion 18 of the partition cloth 4. 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 together 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 On the upper surface side, each side forming each of the space portions is deformed along the arch-shaped convex 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 longitudinal 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 in a convex shape and the lower surface side is curved in a concave shape. Therefore, since the futon body 5 is difficult 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 duvet body 5 are configured to be curved in both the width direction and the longitudinal direction, respectively. For example, the duvet of the partition cloth 4 forming the space portion. The length of the front side fabric 2 along the longitudinal direction and the width direction of the front side fabric 2 by changing the radius of curvature of the convex 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. Try to change the dimensions.

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, for example, the duvet body 5 is curved 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 retaining property 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 feather F is 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 be gradually narrowed toward the end portions 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 dimension of the one end side and the other end of the futon body 5 is gradually narrowed toward the end in the longitudinal direction.

As a result, since the entire planar shape of the duvet body 5 is shaped like a turtle shell, the area along the longitudinal direction of the central portion in the width direction covering the user's body is almost 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 retaining effect can be obtained, so that the duvet body 5 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 it, and it is possible to easily turn over, so that the sleeping comfort can be improved.

It should be noted that 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 be gradually narrowed toward the end portion in the longitudinal direction, but either one in the longitudinal direction is formed. Only the ends of the may be formed to become narrower and narrower towards the longitudinal ends.

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 ... First space part, 14a ~ 14d ... Second space part, 15a ~ 15c ... Third space part, 18 ... Convex curved part , 19 ... Concave curved part , 22 ... Duvet cover, 23 ... Mounting member , 24 ... Connecting member, 27 ... Auxiliary member.

Claims (4)

A duvet with a bag-shaped sewn duvet body,
The futon body is
Front side fabric and
The back side fabric provided on the lower surface side of the front side fabric and the peripheral portion is sewn to the peripheral portion of the front side fabric, and the back side fabric.
A strip having a predetermined width dimension, the upper end in the width direction is connected to the front side fabric, the lower end is connected to the back side fabric, and a plurality of spaces filled with feathers are formed on the front side fabric and the back side. Formed by a partition cloth that is partitioned between the fabrics,
The space part is
A first space portion formed in a plurality of parts along the longitudinal direction in the central portion in the width direction of the futon body, and a first space portion.
A second space portion formed in a plurality of parts along the longitudinal direction on both sides of the first space portion, and a second space portion.
It is composed of a third space portion formed in a plurality of parts along the longitudinal direction on both sides of the second space portion.
In the partition cloth, each upper end portion sewn to the lower surface of the front side fabric is formed in a convex curved portion, and each lower end portion sewn to the upper surface of the back side fabric is formed in a concave curved portion or a linear portion. Has been
By filling the first to third spaces with feathers, each portion of the front side fabric that closes the upper end opening of the first to third spaces is formed at the upper end of the partition cloth. It expands to a convex curved surface along the convex curved portion, and the entire upper surface of the futon body is curved to a convex curved surface in both the width direction and the longitudinal direction, and the entire lower surface is curved to a concave curved surface according to the curvature of the upper surface. A duvet characterized by its composition . The duvet according to claim 1, wherein the first space portion is set so that the filling amount of feathers per unit volume is larger than that of the second and third space portions. 1 . The duvet according to any one of 2 . It has a duvet cover that covers the duvet body, a loop-shaped mounting member is provided around the duvet body, and the duvet cover is provided with a connecting member that is connected to the mounting member.
The duvet according to claim 3 , 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. ..

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