JP3192819U - Cushion body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushion body capable of moving a filler between adjacent rooms when the interior is partitioned by a plurality of small rooms, and which does not impair the shape advantage due to partitioning the rooms. SOLUTION: A backrest portion 7 and a seat portion are filled with a large number of beads so as to maintain the three-dimensional shape of the outer skin and to be movable in a flexible outer skin 2a to 2g sewn in a bag shape. A sofa having a substantially L-shape in a vertical cross-sectional view having 5 is configured. The inside of the sofa is divided into three small rooms A, B, and C by partition cloths 8 and 9, and the adjacent small rooms are communicated with each other by the opening 10 so that beads can be distributed. [Selection diagram] Fig. 3

Description

  The present invention relates to a cushion body that is used by filling a filler therein so that a person can sit down or lean on it.

  2. Description of the Related Art Conventionally, there is a cushion body (so-called bead cushion) that is used by filling a small outer shell made of foamed plastic into a flexible outer shell that is three-dimensionally sewn in a bag shape. An example of such a cushion body is shown in Patent Document 1.

JP 2007-283082 A

By the way, the inside of such a cushion body may be made into a cushion body having a plurality of small rooms by partitioning or connecting a plurality of cushion bodies. Such a cushion body, which is usually called a bead cushion, does not have a frame for supporting it inside, and therefore it is difficult to configure it to have a form having clear discontinuous parts such as corners and corners. However, it is possible to form a relatively concavo-convex-shaped cushion body by partitioning into a plurality of small rooms or connecting a plurality of cushion bodies.
In such a cushion body, when a person gets on or leans on the cushion body, it is deformed, and the internal filler moves inside according to the weight of the person and the direction in which the weight is applied. However, when the interior is partitioned into a plurality of small rooms as described above, the filler moves only within the single small room and cannot move to the adjacent small rooms. However, when a person rides on a cushion body, he / she does not ride on or lean on only one small room portion, but usually heals over a plurality of small rooms. In this case, the cushion body will not be smoothly deformed if there is no rapid movement of the filler between the small rooms, and the smoothness and softness when the cushion body is used will be lacking. For this reason, there has been a demand for a technique that can move the filler between adjacent rooms when the interior is partitioned by a plurality of small rooms and that does not impair the shape advantage of partitioning the rooms.

As a first means for achieving the above-mentioned purpose, a granular filler is filled in a flexible outer shell that is three-dimensionally sewn in a bag shape so as to keep the three-dimensional shape of the outer shell and to be movable. In the cushion body to be used, a flexible membrane body for partitioning the inside of the outer skin into a plurality of small rooms is stretched between the outer skins facing each other, and the membrane body or between the membrane body and the outer skin The gist of the present invention is that a passage allowing passage of the filler between the adjacent small chambers is formed.
With such a configuration, when a person gets on or leans on the cushion body, the cushion body is deformed by its weight, and the filler moves internally. At that time, the filler can circulate between a plurality of partitioned small rooms via a passage, and since the filler does not stay in only one room, the deformation extends over a plurality of rooms. In this case, the filler can move to the adjacent room, and as a result, it contributes to the smooth deformation of the cushion body. Further, when filling the filling material, the filling operation can be performed without individually filling each small room, and the density of the filling material in each room is averaged by communicating in this way.
Here, the “film body” is not limited to any material or formation method, and can partition a small room in a state of being stretched between facing outer skins, and can prevent the outer skin from expanding due to the filled material. Included in the concept of body. By disposing the film body, the three-dimensional shape can be maintained without filling the filler as much as the outer skin receives a large internal pressure.
The gist of the second means is that the passage is an opening that opens in a window shape between the adjacent small rooms at all times. “Movement” means that the kinetic energy when the filler is pushed is transmitted one after another, and the current position is displaced including the filler that is not pushed directly from the outside.
By using the opening opening in the shape of a window as a passage in this way, the filler can move with the resistance when passing through an adjacent room as small as possible, and contributes to a smoother deformation of the cushion body. .

The gist of the third means is that the shape that is three-dimensionally sewn by the outer skin is a sofa shape that is substantially L-shaped in a longitudinal sectional view having a seat portion and a backrest portion.
Since the sofa and backrest are substantially L-shaped in the longitudinal sectional view, the sofa and the backrest are divided into multiple small rooms in this way in order to maintain a clear sofa shape on the outer skin of the seat and backrest. Is good. As long as the sofa shape has a seat portion and a backrest portion, a configuration in which there are portions protruding upward on the left and right of the seat portion, such as armrests, may be used. In that case, you may arrange | position a film body between a seat part and an armrest.
The gist of the fourth means is that the film body is disposed at a position that partitions the seat portion and the backrest portion.
As a result, the substantially L-shaped outer skin shape formed by the seat portion and the backrest portion is supported by the membrane body, and the outer side is filled with the filled material even if it is not equipped with a frame when filled with the filler. Therefore, the shape of the sofa is maintained without being excessively expanded. In addition, when sitting on a sofa, the standard is that the user first gets on the seat and then the back pushes the backrest. Therefore, the position of such a film body also corresponds to a series of movements of the filler such that the filler first moves in the direction from the seat back to the backrest and then returns to the seat again.
Further, as a fifth means, the gist is that the passage is formed at both side positions adjacent to the outer skin in the left-right direction when sitting on the sofa.
When sitting on a sofa, the buttock is often located in the center of the seat and the back is often located in the center of the backrest, and there are few cases of sitting near the edge. Therefore, since the filler near the center moves in the left-right direction, the filler flows smoothly in the left-right direction in a balanced manner, and when the seated person is seated, it is smoothly deformed so as to be wrapped in the sofa. Become.

Further, as a sixth means, the film body is disposed behind the backrest and below the seat, respectively, and the first small chamber at the seat position and the second small chamber at the backrest position. The gist is that the interior is partitioned by a third chamber located below the first chamber and behind the second chamber.
Thus, a sofa shape will be hold | maintained by partitioning a sofa. At the same time, since the third small chamber is provided between the first small chamber and the second small chamber, the movement of the filler from the heavy seat portion and the back portion is temporarily buffered. It is carried out through a small third chamber, and the filler is smooth but can be deformed relatively slowly by the resistance of the filler in the third chamber rather than moving all at once. Become.
The gist of the seventh means is that the film body disposed behind the backrest portion is disposed at substantially the same height as the seating surface of the seat portion.
If comprised in this way, the position which fixes a film body can be arrange | positioned in the same position as the seam (for example, sewing site | part) which joins a seat part and a backrest part, Moreover, by the seat part bulging so that it may rise upwards It is possible to make the sewing portion invisible.
Further, as an eighth means, the gist is that the film body disposed behind the backrest portion is rearwardly raised.
As a result, the filler is guided by the film body disposed obliquely when the filler moves, so that the filler can be moved more smoothly. Also, since the outer skin on the back side of the backrest part has a length in the vertical direction, if the filler is deposited, it becomes easy to create a gap in the upper part of the backrest part, but by making the position of the film body upward in this way It becomes difficult to create a gap. In such a case where there is a length in the vertical direction, a partition small chamber may be provided by some film bodies. Also in this case, it is preferable to form a passage in the film body.
Further, as a ninth means, the gist of the present invention is that the film body disposed below the seat portion is disposed at substantially the same vertical position as the front surface position of the backrest portion.
If comprised in this way, the position which fixes a film body can be arrange | positioned in the same position as the seam (for example, sewing site | part) which joins a seat part and a backrest part, Moreover, by the seat part bulging so that it may rise upwards It is possible to make the sewing portion invisible.
Further, as a tenth means, the gist is that the film body disposed below the seat portion is disposed so that the upper side is rearwardly lowered.
As a result, the filler is guided by the film body disposed obliquely when the filler moves, so that the filler can be moved more smoothly.
Further, as an eleventh means, the gist is that only one inlet for the filler is formed in the outer skin, and the inlet can be closed after the filler is filled.
Thus, the filler can be evenly distributed over the entire cushion body simply by introducing the filler from one inlet.

  According to the present invention, when the interior of the cushion body is divided into a plurality of small rooms, the filler can be moved between adjacent rooms, so that the cushion body can be smoothly moved when weight is applied to the cushion body. It will contribute to the deformation.

The perspective view of the sofa of embodiment which is an example of this invention. The partially cutaway front view of the sofa of the same embodiment. The longitudinal cross-sectional view in the state which assumed the solid state which is not filled with the bead in the inside in order to demonstrate an internal structure in the sofa of the same embodiment (it does not swell). The perspective view of the state seen from diagonally downward of the sofa of the same embodiment.

Hereinafter, a sofa as an embodiment of the cushion body of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, a synthetic leather outer skin 2 of the sofa 1 is filled with a large number of beads 3 as a foamed polystyrene filler. The beads 3 are elastic small spheres having a diameter of about 5 mm to 8 mm. The beads 3 can move sufficiently inside when a force is applied from the outside, and at the same time the whole solid shape can be maintained, so the filling is about 80% to 90% smaller than the maximum capacity. The rate of use is about 85%. Since the large number of beads 3 are filled in this way, the sofa 1 has a tensioned appearance with the flexible outer skin 2 swelling. The exterior of the sofa 1 includes a seat portion 5 protruding forward and a backrest portion 7 standing rearward of the seat portion 5.
The outer skin 2 is constituted by sewing several parts three-dimensionally. In the present embodiment, the pair of L-shaped first and second outer skin pieces 2a and 2b constituting the left and right side surfaces and the third outer skin piece 2c constituting the seat top surface to the seat front surface, the backrest front surface to the back rest portion. 4th outer skin piece 2d constituting the upper rear surface, fifth outer skin piece 2e constituting the lower rear portion of the backrest portion, sixth outer skin piece 2f constituting the rear rear portion of the seat portion, and seventh seventh portion constituting the rear rear surface portion of the seat portion. The outer skin piece 2g is composed of seven parts. The first and second outer skin pieces are sewn so that the third to seventh outer skin pieces 2c to 2g are connected in series, and are arranged on the left and right sides and the left and right sides of the third to seventh outer skin pieces 2c to 2g. The outer skin 2 is formed by sewing so as to connect the outer peripheries of 2a and 2b. As shown in FIG. 1, the connecting portion of the third outer skin piece 2c and the fourth outer skin piece 2d is the corner of the first and second outer skin pieces 2a, 2b that is just the intersection of the front surface of the seat portion 5 and the front surface of the backrest portion. Located at P.

In the outer skin 2, two first and second partition cloths 8 and 9 are disposed as film bodies stretched between facing outer skin pieces. The first and second partition cloths 8 and 9 are flexible cloths made of a flexible synthetic fiber having a rectangular shape. The first partition cloth 8 has a rear end of the third outer skin piece 2c, that is, a joint position between the third outer skin piece 2c and the fourth outer skin piece 2d, and a joint seam between the fourth outer skin piece 2d and the fifth outer skin piece 2e. It arrange | positions by sewing all the edges which oppose in a position. As shown in FIGS. 3 and 4, the first partition cloth 8 is slightly raised from the front to the rear when the bottom surface constituted by the sixth and seventh outer skin pieces 2f and 2g is a horizontal plane. It is placed non-horizontal. Expansion in the front-rear direction of the backrest 7 in a state where the beads 3 are filled with the first partition cloth 8 is suppressed.
The second partition cloth 9 is a rear end of the third outer skin piece 2c, that is, a joint position between the third outer skin piece 2c and the fourth outer skin piece 2d, and a joint seam between the sixth outer skin piece 2f and the seventh outer skin piece 2g. It arrange | positions by sewing all the edges which oppose in a position. As shown in FIG. 3 and FIG. 4, when the front surface of the seat portion constituted by the second partition cloth 9 and the third outer skin piece 2 c is a vertical surface, the second partition cloth 9 is non-vertically so as to be slightly lowered from the bottom to the top. Has been placed. The expansion in the vertical direction of the seat portion 5 in a state where the beads 3 are filled with the second partition cloth 9 is suppressed. The interior of the sofa 1 is partitioned into a first small room A, a second small room B, and a third small room C by the first and second partition cloths 8 and 9.
As shown in FIGS. 3 and 4, the first and second partition cloths 8 and 9 are not sewn between the left and right first and second outer skin pieces 2a and 2b, and are left and right. An opening 10 having the same size is formed. When the beads 3 are filled with the openings 10, the beads 3 can smoothly flow between the small rooms A to C.
As shown in FIG. 4, an openable / closable fastener 11 is formed as an introduction port at a corner portion where the fifth outer skin piece 2 e and the sixth outer skin piece 2 f intersect. In the present embodiment, there is only one fastener 11 and all the beads 3 are taken in and out of the fastener 11.

  In the sofa 1 having such a configuration, when a person puts his / her body on the sofa 1 and takes a weight, the outer skin 2 is deformed variously according to the weight and the direction in which the weight is applied. The beads 3 also move accordingly. For example, when considering a case where a person first sits on the sofa 1, the weight is first greatly applied to the third outer skin piece 2 c of the outer skin 2 that becomes the seat portion 5. The third outer skin piece 2c bends due to its weight, and the first small chamber A sharply reduces the internal volume. At this time, the beads 3 located near the left and right openings 10 of the first partition cloth 8 are It moves in the direction of the third small room C from the left and right openings 10. At this time, the third chamber C swells momentarily by the inflow of the beads 3 and releases the pressure. Next, in the third small room C, the beads 3 located near the left and right openings 10 of the second partition cloth 9 move from the left and right openings 10 toward the second small room B. On the other hand, the backrest 7 becomes heavy with a slight delay in timing almost simultaneously, so that the fourth outer skin piece 2d also bends due to its weight and the second small chamber B rapidly reduces the internal volume. Therefore, on the contrary, the bead 3 moves from the second small room B to the third small room C. In addition, the side in contact with the person bends in the concave direction, but the back side of the backrest portion 7 swells convexly, and thus the beads 3 repeat various movements in the sofa 1 in a complicated manner. Since the pressure applied to a certain part of a certain small room is basically distributed in the direction of the other small rooms, the deformation of the sofa 1 becomes smooth in the entire region.

The sofa 1 configured as described above has the following effects.
(1) In the sofa 1 filled with the beads 3, when the weight is applied and the shape is deformed, the beads 3 permeate through the opening 10, so that the repulsive force changes greatly in the portion of the cushion body. It will be deformed smoothly.
(2) Even if the sofa 1 is inflated by filling the beads 3, the first and second partition cloths 8 and 9 are arranged in the sofa 1 in place of the frame-like member, and thereby the seat of the sofa 1 is disposed. The shape of the part 5 and the backrest part 7 can be maintained.
(3) Since the opening 10 is formed equally on the left and right, deformation does not occur biased right and left when sitting on the sofa 1.
(4) The second small chamber B is formed by the first and second partition cloths 8 and 9, and the beads 3 circulate in a total of three chambers, and the first small deformed greatly at that time Since the third chamber C plays a buffer role with respect to the room from the room A and the second chamber B, the beads 3 can be deformed relatively slowly rather than moving at once. It becomes.
(5) Since the first and second partition cloths 8 and 9 are arranged obliquely, the beads 3 are easy to move.
(6) Since only one fastener 11 is formed and all the beads 3 can be taken in and out of the fastener 11, the work is reduced.

Note that the present invention can be modified and embodied as follows.
The shape, material, sewing position, number of outer skin pieces, etc. of the sofa 1 can be changed as appropriate. Further, the material and size of the first and second partition cloths 8 and 9, the arrangement position, and the like can be changed as appropriate. You may make it comprise four or more small rooms by increasing a partition cloth.
Moreover, although the simple shape which has the seat part 5 and the backrest part 7 was mentioned as an example about the sofa above, you may make it implement | achieve with the sofa of a shape which has an armrest or a headrest. In that case, a small room may be formed by providing a partition cloth such as the first and second partition cloths 8 and 9 for the armrest and the headrest.
-You may make it apply to cushion bodies other than the sofa 1. FIG.
-The size of the beads 3 may be other sizes and shapes. For example, you may make it use the bead 3 which has a dispersion | variation in size rather than the above and is the range of about 0.5 mm-10 mm.
-Although the foamed urethane beads 3 are used as the filler, other fillers may be used. The shape may not be spherical.
-The magnitude | size, shape, and formation position of the opening part 10 may be other than the above.
-Although the fastener 11 was used as an inlet in the above, means other than the fastener 11 are used. For example, the introduction port may be opened and closed using a hook-and-loop fastener or a button.
-In addition, it is free to implement in a mode that does not depart from the spirit of the present invention.

  DESCRIPTION OF SYMBOLS 11 ... Sofa as cushion body, 2 ... Outer skin, 3 ... Bead as filler, 8 ... 1st partition cloth as a film body, 9 ... 2nd partition cloth as a film body, 10 ... Opening as a channel | path Part, AC ... 1st-3rd small room.

Claims (11)

In the cushion body used by filling a granular filler so that the three-dimensional shape of the outer skin can be kept within the flexible outer skin that is three-dimensionally sewn into a bag shape and is movable,
A flexible membrane for partitioning the inside of the outer skin into a plurality of small rooms is stretched between the outer skins facing each other,
A cushion body characterized in that a passage allowing passage of the filler between adjacent small chambers is formed between the membrane body or the membrane body and the outer skin.   The cushion body according to claim 1, wherein the passage is an opening that opens like a window between the adjacent small rooms.   The cushion body according to claim 2, wherein the shape that is three-dimensionally sewn by the outer skin is a sofa shape that is substantially L-shaped in a longitudinal sectional view having a seat portion and a backrest portion.   The cushion body according to claim 3, wherein the film body is disposed at a position that partitions the seat portion and the backrest portion.   5. The cushion body according to claim 3, wherein the passage is formed at both side positions adjacent to the outer skin in the left-right direction when seated on a sofa.   The film body is disposed behind the backrest and below the seat, respectively, and includes a first small chamber at the seat position, a second small chamber at the backrest position, and a first small chamber. The cushion body according to any one of claims 3 to 5, wherein the interior is partitioned by a third small room located below and in the rear of the second small room.   The cushion body according to claim 6, wherein the film body disposed behind the backrest portion is disposed at substantially the same height as a seating surface of the seat portion.   The cushion body according to claim 7, wherein the film body disposed behind the backrest portion is disposed so as to rise rearward.   The cushion body according to any one of claims 6 to 8, wherein the film body disposed below the seat portion is disposed in a vertical position substantially the same as a front surface position of the backrest portion.   The cushion body according to claim 9, wherein the film body disposed below the seat portion is disposed such that the upper side is rearwardly lowered.   The cushion according to any one of claims 1 to 10, wherein only one inlet for the filler is formed in the outer skin, and the inlet can be closed after the filler is filled. body.

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