JP2004202209A - Cushion structure, bag, chair, and bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cushion structure having sufficient cushioning properties. <P>SOLUTION: In a knapsack R, a tubular member 4 having rubber-like elasticity is disposed inside a back rear portion 1 functioning as a cushion portion. Preferably, the tubular member 4 is disposed so as to apply pressure to the back rear portion 1 approximately in a tube diameter direction. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a cushion structure for a bag, a chair, a bed, and the like, and more particularly to a cushion structure capable of improving cushioning properties.

  In a conventional cushion structure, at a portion where cushioning properties are required (hereinafter, referred to as a cushion portion), for example, at the back and back of a school bag, as shown in FIG. A first cushion body 103 and a second cushion body 104, both made of sponge, were stuck between them.

  Since the prior art document search was not conducted, there is no prior art document information to be described.

  However, in the above-described conventional cushion structure, when the pressing force is applied, the first cushion body 103 and the second cushion body 104 have a small restoring force, so that the first cushion body 103 and the second cushion body 104 are easily crushed and become flat, and the swelling is caused. Because of the shortage, there is a problem that the cushioning property is poor.

  An object of the present invention is to solve the above-mentioned problem, and to provide a cushion structure having a high cushioning property, and a bag, a chair, and a bed using the cushion structure.

  The cushion structure according to the present invention is characterized in that a tubular member having rubber-like elasticity is arranged inside a cushion portion where cushioning properties are required.

  Here, it is preferable that a plurality of the tubular members are arranged substantially in parallel with each other, and a cushion member configured by connecting the adjacent tubular members to each other is arranged inside the cushion portion.

  Further, the tubular member may have a substantially circular cross section, and the tubular member may be arranged such that a pressing force against the cushion portion is applied in a substantially pipe radial direction.

  Further, it is preferable that a cross section of the tubular member is substantially arc-shaped, and a surface on which the cushion portion is pressed is arranged on an arc surface side of the tubular member.

  Further, the tubular member may be provided by providing a substantially flat adhesive portion along the tube axis direction on the tubular member, and attaching the adhesive portion.

  Further, a sponge may be filled in the inside of the tubular member.

  A bag according to the present invention uses the cushion structure described above.

  A chair according to the present invention uses the cushion structure described above.

  A bed according to the present invention is characterized by using the above cushion structure.

  In the cushion structure of the present invention, since the tubular member having rubber-like elasticity is disposed inside the cushion portion, the rubber-like elasticity of the tubular member provides excellent resilience, the cushion portion is less likely to be crushed, and the cushioning property is improved. The cushion structure rich in the structure can be provided.

  In addition, if a plurality of tubular members are arranged substantially parallel to each other and a cushion member configured by connecting adjacent tubular members to each other is disposed inside the cushion portion, the tubular members may be shifted from each other. Disappears, and a good feeling of use can be maintained.

  Further, when the cross section of the tubular member is substantially circular, if the tubular member is arranged so that the pressing force against the cushion portion is applied substantially in the radial direction of the tube, it is preferable that the user does not feel the angular portion, A feeling of use is obtained.

  In addition, when the cross section of the tubular member is substantially arcuate, if the surface to be pressed by the cushion portion is arranged on the arc surface side of the tubular member, it is pressed from the arc surface side of the tubular member, that is, the expanded portion. Therefore, the restoring force works strongly, the cushioning property is good, and a good feeling in use can be obtained.

  Also, if a substantially flat plate-like adhesive portion is provided on the tubular member along the tube axis direction and the adhesive portion is adhered to the tubular member, the tubular member can be easily arranged.

  In addition, if the sponge is filled in the inside of the tubular member, the cushion portion is harder to be crushed, and the cushioning property can be further improved.

  Since the bag of the present invention uses the cushion structure described above, it is possible to provide a bag having a cushion portion rich in cushioning properties.

  Since the chair of the present invention uses the cushion structure described above, it is possible to provide a chair having a cushion portion with rich cushioning properties.

  Since the bed of the present invention uses the cushion structure described above, it is possible to provide a bed having a cushion portion rich in cushioning properties.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, the back portion 1 of the school bag R shown in FIG. 1 will be described as an example of a cushion portion (that is, a portion requiring cushioning properties). FIG. 1 is a schematic perspective view of the school bag R, and FIG. 2 is a schematic exploded perspective view of the back 1 of the school bag R of FIG. The back back portion 1 includes a back ring mounting portion 8, a front portion 2, a first cushion body 3, a tubular member 4, a second cushion body 5, and a core plate portion 6. FIG. 3 is a front view of the back back portion 1 in a state where the back ring mounting portion 8, the front portion 2, and the first cushion body 3 are removed. In the following description, in the state where the user is carrying the school bag R, the surface close to the user is shown as the front side, the opposite side is made the back side, and the upper side of the backed state is up and the opposite direction is down. I do.

  The core plate portion 6 is made of polystyrene foam and is formed in a substantially rectangular plate shape. The second cushion body 5 is formed by forming a sponge of foamed polyurethane or the like into a substantially U-shape, and the back surface is adhered to both sides and the lower surface of the core plate 6.

  Three grooves 7 are provided on the surface of the second cushion body 5, and the three grooves 7 are arranged in a substantially U-shape along the shape of the second cushion body 5 as a whole. The tubular member 4 is fitted and bonded to each groove 7. The tubular member 4 is formed by molding a synthetic rubber such as silicone rubber or acrylic rubber into a tubular shape, and has rubber-like elasticity.

  The first cushion body 3 is put on the front side of the second cushion body 5. The first cushion body 3 is formed by forming a sponge of foamed polyurethane or the like into a substantially rectangular shape slightly smaller than the core plate portion 6. Accordingly, the tubular member 4 is disposed between the second cushion body 5 and the first cushion body 3 with the tubular member 4 sandwiched therebetween.

  The front part 2 is put on the front side of the first cushion body 3 and is adhered to the first cushion body 3. The front portion 2 is a portion in contact with the user's back, is made of leather or synthetic leather, and is formed in a substantially rectangular shape slightly larger than the first cushion body 3. The peripheral portion of the front portion 2 is adhered to the peripheral portion of the core plate portion 6, and further sewn to the core plate portion 6 through the first cushion body 3 as shown by a broken line portion. As a result, the tubular member 4 is disposed inside the back back portion 1 so that a pressing force against the back back portion 1 is applied in a substantially pipe radial direction. It should be noted that the arrangement in which the pressing force is applied substantially in the radial direction of the pipe means that the pipe axis direction is arranged so as to be substantially parallel to the surface to be pressed (the surface of the front part 2 in the case of the back 1). Good.

  The back ring mounting part 8 is made of leather or synthetic leather, and is a part to which a well-known back ring is mounted. The back ring mounting portion 8 is stuck to the surface of the upper central portion of the front portion 2, and is sewn to the core plate portion 6 through the front portion 2 and the first cushion body 3 as shown by a broken line portion.

  FIG. 4 is a schematic cross-sectional view of the state of FIG. 3 in which the first cushion body 3 and the front part 2 are bonded and sewn as described above, and cut at the VI-VI site. When the user carries the school bag R, a pressing force as shown by an arrow A in FIG. 3 is applied to the back 1, but since the tubular member 4 has rubber-like elasticity and has a strong restoring force, The back portion 1 is kept swelled moderately without being crushed into a flat shape. That is, the back 1 has rich cushioning properties. Since the inside 4a of the tubular member 4 is hollow, even if the tubular member 4 is provided, the weight increase of the school bag R is extremely small.

  In addition, since the tubular member 4 is arranged so that the pressing force is applied substantially in the radial direction of the tube, that is, such that the smooth outer peripheral surface is pressed, it is preferable that the user does not feel the angular portion. Sensation is obtained. Further, when the pressing force is applied substantially in the radial direction of the pipe, air is appropriately released from the interior 4a, which is a cavity, and the hitting condition for the user is reduced, so that the cushioning property is good.

  Instead of providing the groove 7 in the second cushion body 5, as shown in FIG. 5, a substantially flat adhesive portion 9 is integrally provided on the tubular member 4 along the tube axis direction, as shown in FIG. As described above, the tubular member 4 may be disposed inside the back 1 by bonding the bonding portion 9 to the second cushion body 5. According to this, it is not necessary to provide the groove 7 and the arrangement of the tubular member 4 becomes easy.

  Next, the cushion portion 18 of the shoulder belt 10 of the school bag R will be described as an example. FIG. 7 is a schematic front view showing a state in which the front part 11 and the first cushion body 12 (see FIG. 8) are removed from the cushion part 18 of the shoulder belt 10 of the school bag R of FIG. FIG. 8 is a schematic cross-sectional view of the state of FIG. 7 in which the first cushion body 12 and the front part 11 are bonded and sewn, and cut at a VIII-VIII site. As shown in FIG. 8, the shoulder belt 10 includes a front part 11, a first cushion body 12, a tubular member 13, a second cushion body 14, and a back part 15.

  The back portion 15 is made of leather or synthetic leather, and the second cushion body 14 is adhered to the back portion 15. The second cushion body 14 is formed of a sponge such as polyurethane foam or polystyrene foam. The second cushion body 14 is provided with a plurality of grooves 7 extending substantially in the longitudinal direction of the shoulder belt 10. A tubular member 13 having the same configuration as the tubular member 4 disposed on the back 1 is fitted into and bonded to each groove 7.

  The first cushion body 12 is formed of a sponge such as foamed polyurethane, and is put on the second cushion body 14. As a result, the tubular member 13 is disposed between the second cushion body 14 and the first cushion body 12 with the tubular member 13 sandwiched therebetween.

  The front part 11 is put on the first cushion body 12 and adhered to the first cushion body 12. The front portion 11 is made of leather or synthetic leather, and is a portion that comes into contact with the user's shoulder when the user carries the school bag R. Then, the front part 11 is sewn to the back part 15.

  As described above, the tubular member 13 is disposed inside the cushion portion 18 such that the pressing force against the cushion portion 18 is applied substantially in the tube radial direction. When the user carries the school bag R, a pressing force as shown by an arrow A in FIG. 8, that is, a pressing force substantially in the radial direction of the tubular member 13 is applied to the cushion portion 18. Since it has rubber-like elasticity and has a strong restoring force, the cushion portion 18 is rich in cushioning properties without being crushed and flattened.

  Instead of providing the groove portion 16 in the second cushion body 14, as shown in FIG. 9, one substantially flat adhesive portion 17 is integrally formed on the plurality of tubular members 13 along the tube axis direction. Then, as shown in FIG. 10, the bonding portion 17 may be bonded to the second cushion body 14. Further, the tubular member 13 may be provided by sewing instead of bonding, or the bonding portion 17 may be directly bonded or sewn to the back portion 15 without providing the second cushion body 14.

  Further, the seat portion 21 and the backrest portion 22 of the chair C shown in FIG. 11 will be described as an example of the cushion portion. FIG. 11 is a perspective view of the chair C. A tubular member 23 having the same configuration as the tubular member 4 used for the back and back portion 1 is provided inside the seat 21 and the backrest 22 in FIG. Are arranged as indicated by the broken line.

  When the user sits on the chair C, a pressing force as shown by an arrow D is applied to the seat surface portion 21 and a pressing force as shown by an arrow E is applied to the backrest portion 22. That is, a pressing force is applied in a substantially tube radial direction of the tubular member 23, but since the tubular member 23 has rubber-like elasticity and has a strong restoring force, the seat surface portion 21 and the backrest portion 22 are crushed and flattened. It is possible to provide the chair C rich in cushioning property without causing the problem.

  By the way, some chairs have metal cushions arranged in the cushions to improve cushioning properties, but the springs are fragile, and when broken, they protrude outside and catch clothes or the like. There is also a problem that the chair becomes heavy. However, by using the tubular member 23 instead of the spring as described above, it is possible to provide the chair C that is less likely to break the cushion portion and is light in weight.

  Further, the cushion structure of the present invention may be applied to the cushion portion 31 of the bed B as shown in FIG. That is, FIG. 12 is a perspective view of the bed B, and a tubular member 32 having the same configuration as the tubular member 4 used for the back and back portion 1 is provided inside the cushion portion 31 as shown by a broken line in FIG. It is arranged in.

  When the user sleeps on the bed B, a pressing force is applied to the cushion portion 31 as indicated by an arrow F, that is, a pressing force is applied substantially in the radial direction of the tubular member 32, but the tubular member 32 is made of rubber. Since it has a shape elasticity and a strong restoring force, it is possible to provide the bed B having a good cushioning property without the cushion portion 31 being crushed and becoming flat.

  Note that the inside 4a of the tubular member 4, the inside 13a of the tubular member 13, the inside 23a of the tubular member 23, and the inside 32a of the tubular member 32 may be filled with a sponge such as foamed polyurethane. Then, the back and back portion 1, the cushion portion 18, the seat surface portion 21, the backrest portion 22, and the cushion portion 31 are further hardly crushed, and the cushioning property can be further improved.

  Alternatively, only the tubular member 4 or the like may be provided inside the cushion portion without providing the first cushion body 3 or the second cushion body 5 or the like.

  Further, in the above embodiments, the tubular member 4 and the like formed in a tubular shape are arranged inside the cushion portion from the beginning, but as shown in FIG. 13, a sheet S made of synthetic rubber is rounded into a substantially tubular shape. May be arranged inside the cushion portion as a tubular member.

  Further, the tubular member 4 and the like have a circular cross section, but may have a tubular cross section such as an elliptical shape or a semicircular shape. In the case of a tube having a semicircular cross section, they are arranged so that a pressing force is applied to the arc surface. Moreover, the tube axis direction does not have to be a straight tube, and the tube axis direction may be a bent tube. Further, the tubular member 4 or the like may be formed of natural rubber other than synthetic rubber, vinyl chloride, or the like. In short, the tubular member 4 or the like may be any material having rubber-like elasticity.

  Further, the cushion structure of the present invention can be applied to any portion other than the back and back portion 1 and the shoulder belt 10 of the school bag R, such as the bottom portion of a bag, as long as cushioning properties are required. It is also applicable to cushion parts other than bags, chairs and beds.

  Next, as shown in FIG. 14, an embodiment using a cushion member 41 in which a plurality of tubular members 42 are arranged substantially in parallel with each other and adjacent tubular members 42 are connected to each other will be described. In addition, about the part similar to the said embodiment, the same code | symbol is used and the description is abbreviate | omitted suitably.

  As shown in FIG. 14, the cushion member 41 includes a plurality of tubular members 42 arranged substantially in parallel with each other and a connecting portion 43 for connecting the adjacent tubular members 42 to each other. 43 is integrally formed of synthetic rubber such as silicon rubber or acrylic rubber. Further, each tubular member 42 is formed in a tubular shape having a substantially circular cross section, and the connecting portion 43 is formed in a flat plate shape.

  As shown in FIG. 15, when the cushion member 41 is used for the cushion portion 18 of the shoulder belt 10 of the school bag R, the cushion member 41 is configured such that the tube axis direction of each tubular member 42 is the width direction (short width) of the shoulder belt 10. (Direction) is disposed on the surface of the second cushion body 14 adhered to the back portion 15. The width of the cushion portion 18 is the widest in the central portion and gradually narrows in the upward and downward directions. Accordingly, the width of the cushion member 41, that is, the width in the tube axis direction of each tubular member 42 is adjusted accordingly. The length and the length of each connecting portion 43 in the same direction are formed so as to be gradually shortened from the central portion upward and downward.

  As shown in FIG. 16, the cushion member 41 thus arranged is covered with the first cushion body 12, further covered with the front part 11, and the front part 11 is sewn to the back part 15. The first cushion body 12 is adhered to the front part 11. Further, in this embodiment, the cushion member 41 is not adhered to either the first cushion body 12 or the second cushion body 14, but one or both of the first cushion body 12 and the second cushion body 14 are provided. Of course, it may be adhered.

  As described above, when the cushion member 41 provided with the tubular member 42 is disposed inside the cushion portion 18, when the user carries the school bag R, the cushion portion 18 is provided as shown by the arrow A in FIG. A pressing force is applied to the tubular member 41 substantially in the radial direction of the tube. However, since the tubular member 13 has rubber-like elasticity and has a strong restoring force, there is no possibility that the cushion portion 18 is crushed into a flat shape and cannot return to its original state (so-called sagging). Therefore, it is possible to provide the cushion portion 18 having a rich cushioning property.

  In addition, since the adjacent members of the tubular member 42 are connected to each other, the movement is restricted. For this reason, even if the pressing and opening of the cushion portion 18 are repeated, the position does not shift and the tubular members 42 come close to each other, and a good feeling of use can be maintained. In particular, the bonding between the tubular member 42 and the first cushion body 12 or the like may be difficult depending on the material, but even if the tubular member 42 is not bonded, the displacement of the tubular member 42 is prevented. can do.

  FIG. 17 shows an embodiment in which the cushion member 41 as shown in FIG. 16 is disposed on the back 1 of the school bag R. In this embodiment, three cushion members 41 are substantially U-shaped on the surface of the second cushion body 5 adhered to the core plate 6 of the back and back portion 1 so as to follow the shape of the second cushion body 5 as a whole. It is arranged in a shape. Note that three grooves may be formed in the second cushion body 5 in accordance with the size of the cushion member 41, and each cushion member 41 may be fitted into each groove.

  The cushion member 41 thus arranged is covered with the first cushion body 3, and further, the front part 2 is covered on the first cushion body 3, and the front part 2 is bonded and sewn to the core plate part 6. (See FIG. 2). The first cushion body 3 is adhered to the front part 2. Further, the cushion member 41 may or may not be adhered to one or both of the first cushion body 3 and the second cushion body 5.

  As described above, when the cushion member 41 provided with the tubular member 42 is disposed inside the back portion 1 serving as the cushion portion, when the user carries the school bag R, the tubular member 41 Although a pressing force is applied substantially in the radial direction of the tube, the restoring force of the tubular member 13 does not cause the back and back portion 1 to become flat, and the cushioning properties are enhanced. Further, since the adjacent tubular members 42 are connected to each other, the tubular members 42 do not come close to each other, and a good feeling of use can be maintained.

  Further, when the tubular member 42 having a substantially circular cross section is used, the portion may be excessively swelled in some parts. In such a case, a plurality of tubular members 52 having a substantially arc-shaped cross section are connected as shown in FIG. It is good to use the cushion member 51 which was used. Hereinafter, an embodiment using the cushion member 51 will be described. In addition, about the part similar to the said embodiment, the same code | symbol is used and the description is abbreviate | omitted suitably.

  As shown in FIG. 18, the cushion member 51 includes a plurality of tubular members 52 arranged substantially in parallel with each other, and a connecting portion 53 that connects the adjacent tubular members 52 to each other. 53 is integrally formed of synthetic rubber such as silicon rubber or acrylic rubber. Each tubular member 52 is formed in a tubular shape having a substantially arc-shaped cross section, and the connecting portion 43 is formed in a flat plate shape. Here, the bow shape refers to a shape composed of an arc and a chord connecting both ends thereof. In this embodiment, the cross section of each tubular member 52 is substantially semicircular (including a chord portion). And the flat part 52a and the connection part 43 of each tubular member 52 are flush on the back surface. That is, the back surface 51a of the cushion member 51 is flat.

  When the cushion member 51 is used for the cushion portion 18 of the shoulder belt 10 of the school bag R, the cushion member 51 is configured such that the tube axis direction of each tubular member 52 substantially matches the width direction (short direction) of the shoulder belt 10. Then, it is arranged on the second cushion body 14 adhered to the back portion 15 (see FIG. 15. FIG. 15 is a diagram in the case where the cushion member 41 is used. The cushion member 51 is disposed such that the back surface 51a is in contact with the surface of the second cushion body 14 (see FIG. 19). Further, the width of the cushion member 51 is formed so as to gradually decrease from the central portion upward and downward in accordance with the width of the cushion portion 18.

  As shown in FIG. 19, the cushion member 51 arranged as described above is covered with the first cushion body 12, and further, the front portion 11 is covered over the first cushion body 12, and the peripheral portion of the front portion 11 is covered. Is sewn to the back portion 15. The first cushion body 12 is adhered to the front part 11. The surface of the portion of the front part 11 covered with the cushion member 51 becomes a surface (hereinafter, referred to as a pressing surface) 18a of the cushion part 18 to be pressed, and the pressing surface 18a is an arc surface 52b of each tubular member 52. Side. Further, in this embodiment, the cushion member 51 is not adhered to any of the first cushion body 12 and the second cushion body 14, but, of course, any one of the first cushion body 12 and the second cushion body 14 is used. Or it may be adhered to both.

  As described above, when the cushion member 51 provided with the tubular member 52 is disposed inside the cushion portion 18, when the user carries the school bag R, the cushion portion 18 is provided as shown by the arrow A in FIG. The pressing force is applied, and the tubular member 52 is pressed from the arc surface 52b side. That is, since the tubular member 52 is pressed from the expanded side, the restoring force acts strongly, and the cushion portion 18 does not become flat and cannot be returned to the original position. In addition, since the tubular members 52 are connected to each other adjacent to each other, the movement is restricted. For this reason, even if the pressing and releasing of the cushion portion 18 are repeated, the position does not shift and the tubular members 52 move closer to each other, and a good feeling of use can be maintained. Furthermore, in the cushion member 51, since the cross section of each tubular member 52 is substantially arcuate, the cushion portion 18 can be prevented from being excessively expanded, and the cushion portion 18 having an appropriate expansion can be provided.

  Although FIG. 9 shows an example in which one substantially flat plate-shaped bonding portion 17 is integrally formed with a plurality of tubular members 13, this example can be said to be an example of a cushion member. This is because, in the example of FIG. 9, the bonding portion 17 can be regarded as a connecting portion, and it can be said that the plurality of tubular members 13 are arranged substantially in parallel with each other, and the adjacent tubular members 13 are connected. .

  As described above, when a plurality of tubular members 13 and the like are arranged side by side on the cushion portion, they may be arranged on the cushion portion without being connected to each other (see FIG. 8), or may be connected to each other between adjacent members. The cushion member may be provided on the cushion portion (see FIG. 10).

  In addition, the inside of the connected tubular member 42 and the like may be filled with a sponge. Further, the cushion member 41 and the like provided with the connected tubular member 42 may be used for a chair, a bed, and the like other than a bag (bag).

  That is, the present invention can employ various configurations without departing from the scope of the claims.

Schematic perspective view of a school bag according to an embodiment of the bag of the present invention. 1. Schematic exploded perspective view of the back and back of the school bag of FIG. FIG. 2 is a front view showing a state in which a back ring mounting portion, a front portion, and a first cushion body are removed from a back portion of FIG. FIG. 3 is a schematic cross-sectional view taken along the line VI-VI of FIG. Perspective view of a tubular member provided with an adhesive portion FIG. 6 is a schematic cross-sectional view of a back portion provided with the tubular member of FIG. FIG. 1 is a schematic front view of a cushion portion of a shoulder belt of the school bag of FIG. 1 with a front portion and a first cushion body removed. FIG. 7 is a schematic cross-sectional view of a portion VIII-VIII in a state where the first cushion body and the front portion are arranged on the cushion portion of the shoulder belt in the state of FIG. 7. Perspective view when a common adhesive portion is provided on a plurality of tubular members FIG. 9 is a schematic sectional view of a cushion portion of a shoulder belt provided with the tubular member of FIG. 9. 1 is a schematic perspective view of an embodiment of the chair of the present invention. 1 is a schematic perspective view of an embodiment of the bed of the present invention. Perspective view of a tubular member according to another embodiment Schematic perspective view of a cushion member according to still another embodiment. FIG. 14 is a schematic front view showing a state in which a front part and a first cushion body are removed when the cushion member of FIG. 14 is applied to a cushion part of a shoulder belt of a school bag. FIG. 15 is a schematic cross-sectional view of the XVI-XVI part in a state where the first cushion body and the front part are arranged on the cushion part of the shoulder belt in the state of FIG. 15. FIG. 14 is a schematic front view showing a state in which a back ring mounting portion, a front portion, and a first cushion body are removed when the cushion member of FIG. 14 is applied to a back and back portion of a school bag. Schematic perspective view of a cushion member according to still another embodiment. Partial schematic sectional view when the cushion member of FIG. 18 is applied to a cushion portion of a shoulder belt of a school bag. Schematic cross-sectional view of the back and back of a conventional school bag

Explanation of reference numerals

1 ... back part (cushion part)
4, 13, 23, 32, 42, 52 ... tubular member 4a, 13a, 23a, 32a ... inside 9, 17 ... adhesive part 18 ... cushion part 21 ... seat surface part (cushion part)
22 ... Back part (cushion part)
31: Cushion 41, 51: Cushion B: Bed C: Chair R: School bag

Claims (9)

A cushion structure characterized in that a tubular member having rubber-like elasticity is disposed inside a cushion portion where cushioning properties are required. The cushion according to claim 1, wherein a plurality of the tubular members are arranged substantially in parallel with each other, and a cushion member configured by connecting the adjacent tubular members to each other is arranged inside the cushion portion. Construction. 3. The cushion structure according to claim 1, wherein the tubular member has a substantially circular cross section, and the tubular member is arranged such that a pressing force against the cushion portion is applied in a substantially pipe radial direction. The cushion structure according to claim 1 or 2, wherein a cross section of the tubular member is substantially arcuate, and a surface of the cushion portion to be pressed is arranged on an arc surface side of the tubular member. 4. The tubular member is provided by providing a substantially flat adhesive portion along the pipe axis direction on the tubular member, and attaching the adhesive portion to the tubular member. Cushion structure as described. The cushion structure according to claim 1, 2, 3, 4, or 5, wherein a sponge is filled inside the tubular member. A bag using the cushion structure according to claim 1, 2, 3, 4, 5, or 6. A chair using the cushion structure according to claim 1, 2, 3, 4, 5, or 6. A bed using the cushion structure according to claim 1, 2, 3, 4, 5, or 6.

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