JP2017202285A - Cushion set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a comfortable sitting quality even when sitting on the knees for a long time and design properties harmonizing with the interior in a cushion.SOLUTION: A cushion set comprises a substantially columnar-shaped first cushion 1 and a substantially doughnut-shaped second cushion 2. The first cushion and second cushion have substantially same vertical height in a natural state, an inner wall of the second cushion is brought into contact with an outer wall 102 of the first cushion, and the second cushion uses a relatively softer material than that of the first cushion.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cushion set having a function of allowing a user to sit comfortably with a good posture for a long time with a straight seat or crossed legs.

  2. Description of the Related Art Conventionally, seat chairs and cushions for sitting straight are known as having a function for sitting comfortably in a sitting position (see, for example, Patent Documents 1 and 2).

  The cushion described in Patent Document 1 includes a cushioning seat, a cushioning leg extending downward, and a rigid support. When the cushion having such a configuration is applied to the buttocks to take a normal sitting posture, the position of the buttocks is held at a certain height, so that compression of the legs is reduced.

  However, in the cushion described in Patent Document 1, it is difficult to sit for a long time with a pain in a portion of the leg that touches the floor directly from the knee to the shin, instep, and toe.

  The cushion described in Patent Document 2 is a knee-folded cushion, in which a butt cushion is fixed to the cushion. When the hip pillow having such a configuration is applied to the buttocks to take a sitting posture, the buttocks position is held at a certain height, and thus the pressure on the legs is reduced.

  However, in the cushion described in Patent Document 2, parts such as leg knees, shins, insteps, and toes are placed on the cushion, but in order to continue to sit comfortably for a long time, cushioning properties that further distribute the pressure on the legs And fit was needed. In addition, the modern living room has a problem that it is difficult to harmonize with the interior due to a design problem.

Japanese Patent No. 4559597 JP 2012-249688

  The present invention has been conceived under such circumstances, and it is an object of the present invention to eliminate the above-described disadvantages in a cushion for sitting comfortably for a long time in a sitting position.

  In order to solve the above problems, the present invention takes the following technical means.

  The seating cushion set provided by the present invention is a cushion set which is deformed by pressure and whose shape is restored in a natural state. The cushion set includes a first cushion having a substantially columnar shape and a first donut-shaped cushion. The first cushion and the second cushion are substantially equal in height in the vertical direction, and the inner wall of the second cushion is brought into contact with the outer wall of the first cushion, The second cushion is made of a material that is relatively softer than the first cushion.

  In a preferred embodiment, the hole of the second cushion is inclined outward from the center as viewed in the vertical direction.

  In a preferred embodiment, the hole of the second cushion is a through hole.

  In a preferred embodiment, the hole of the second cushion is a bottomed depression.

  In a preferred embodiment, the second cushion has one cut line that extends from the hole to the outside of the outer wall of the cushion when viewed in the vertical direction.

  In a preferred embodiment, the second cushion has a plurality of cuts connected to the outside of the outer wall of the cushion from the hole in the vertical direction.

  In a preferred embodiment, the first cushion and the second cushion are each covered with a cover such as fabric, leather, or a synthetic resin sheet.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a perspective view which shows an example of the cushion set which concerns on this invention, and shows a natural state. It is a perspective view which shows the state which carried out the pressure deformation of the cushion shown in FIG. It is a side view of the cushion shown in FIG. 1 and FIG. 2, Comprising: The natural state and the state which carried out the pressure deformation are contrasted and shown. It is the 1st cushion side view and 2nd cushion sectional drawing of the cushion set shown in FIG. It is a reference drawing which shows the use condition of the cushion set shown in FIG. It is a perspective view of the natural state which shows another example of the cushion set which concerns on this invention, and the 2nd cushion has a cut | interruption. It is a perspective view which shows the state which carried out the pressure deformation of the cushion set shown in FIG. It is sectional drawing in which the hole of a 2nd cushion shows the example of a bottomed hollow. It is a perspective view showing the example of the cushion set in which the 2nd cushion has a bottomed hollow and a plurality of cuts.

DESCRIPTION OF SYMBOLS 1 1st cushion 2 2nd cushion 102 1st cushion outer side wall 202 2nd cushion inner side wall 204 Hole 205 Bottom 206 of a bottomed hollow

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.
1 to 5 show an example of a cushion set according to the present invention.
As shown in FIGS. 1 to 3, the cushion set A <b> 1 of the present embodiment includes a first pillar 1 having a substantially columnar shape on which a hip is placed and a second cushion 2 having a substantially donut shape serving as a footrest. It is configured with.

The inner wall 202 of the second cushion 2 that constitutes the substantially donut-shaped hole 204 is in contact with the outer wall 102 of the first cushion.

As shown in FIG. 1, the heights of the first cushion 1 and the second cushion 2 in the vertical direction are substantially equal in a state before being pressurized. The height is preferably about 10 centimeters to 20 centimeters for adults.
It should be noted that the height of the natural state in both the vertical directions may be almost equal, and there may be a difference of about several centimeters. In that case, the first cushion 1 may be slightly higher as shown in FIGS. 1 and 3, and the second cushion 2 may be slightly higher.

As shown in FIG. 5, when the cushion set A1 is seated and is in a pressurized state, the first cushion 1 is deformed by the user's buttocks, and the second cushion 2 is deformed by the leg knee from the shin, instep and toes. It will be in the state that was made.
At this time, the second cushion 2 is relatively softer than the first cushion 1, and the extent is that the shin, instep and toe are directly deformed from the knees of the legs in the second cushion 2 in the pressurized state. It is preferable that the height in the vertical direction of the portion in the first cushion 1 is equal to or less than half of the height in the vertical direction of the portion where the buttocks in the first cushion 1 are directly riding and deforming.

  Referring to FIG. 3, the left figure shows an example of the shape of the cushion in the natural state and the right figure shows an example of the shape of the cushion in the pressurized state, while the first cushion 1 is slightly deformed (b) in the pressurized state. The second cushion 2 is greatly deformed (a). As a result, the natural state heights (h) of the first cushion 1 and the second cushion 2 were almost equal, whereas the shin, instep, and toes directly ride from the knees of the legs in the second cushion 2. The height (h2) of the deformed portion is less than or equal to one half of the height (h1) of the portion where the buttocks of the first cushion 1 are directly riding and deformed.

As shown in FIGS. 1 to 5, in the cushion set A <b> 1 of the present embodiment, the hole 204 of the substantially donut-shaped second cushion 2 is inclined outward from the center as viewed in the vertical direction.
If the cushion set is used in a direction that is located rearward with respect to the direction of the body on which the first cushion 1 is seated as in the use state shown in FIG. 2 It becomes easy to fit without protruding from the cushion 2.

  As shown in FIG. 4, the hole 204 of the substantially donut-shaped second cushion 2 is a through hole. Even in the case of the through hole, since the inner wall 202 of the second cushion is in contact with the outer wall 102 of the first cushion, the first cushion 1 is stably held at a predetermined position in use.

  As shown in FIG. 8, the hole 204 of the substantially donut-shaped second cushion 2 may be a recess having a bottom 205. Also in such a case, since the inner wall 202 of the second cushion 2 is in contact with the outer wall 102 of the first cushion, the first cushion 1 is stably held at a predetermined position in the use state.

  The bottom 205 may be slightly cushioned using quilted fabric or the like.

  The first cushion 1 is made of a material that is deformed by pressurization and whose shape is restored in a natural state, is relatively smaller in pressure deformation than the second cushion 2, and stabilizes the heel part. For example, polyethylene pipe beads are injected as a cushion material into a cover obtained by sewing elastic jersey fabric into a substantially columnar bag shape.

The second cushion 2 is made of a material that is deformed by pressurization and whose shape is restored in a natural state, is relatively larger in pressure deformation than the first cushion 1, and reduces the burden on the legs. For example, polyester fiber is injected as a cushion material into a cover obtained by sewing elastic jersey fabric into a substantially donut-shaped bag shape.

  Next, the operation of the cushion set A1 will be described.

  As described with reference to FIG. 5, when seated, the first cushion 1 is in a state where the user's buttocks and the second cushion 2 are pressed from the knees of the legs to the shin, upper, and toes. . At this time, the second cushion 2 is relatively softer than the first cushion 1, and the degree thereof is deformed by the shin, instep and toe directly riding from the knee of the leg in the second cushion 2 in the pressurized state. The height in the vertical direction of the portion is equal to or less than half of the height in the vertical direction of the portion where the buttocks in the first cushion 1 are directly riding and deformed.

  With such a configuration, the first cushion with relatively little sinking when sitting in a sitting position, or so-called petanko sitting, with both feet removed and the buttocks attached to the bottom. 1 keeps the buttocks at a moderate height, originally supports the weight on the legs, and creates a beautiful sitting posture with the spine extended.

  In addition, the second cushion 2 that is relatively softer than the first cushion 1 further disperses the pressure on the legs, and can continue to sit comfortably for a long time.

  Further, in a natural state where no pressure is applied, the first cushion 1 does not protrude greatly from the second cushion 2 and can have an integral beautiful form and is used in a living room. It is possible to satisfy the cushion requirements that require design as an interior.

  6 and 7 show another example of the cushion set according to the present invention.

The cushion set A2 shown in FIGS. 6 and 7 includes a first cushion 1 and a second cushion 2, and the basic configuration is the same as the cushion set A1 of the above embodiment.
On the other hand, in the cushion set A2, the substantially donut-shaped second cushion 2 has a cut 206 that extends from the hole to the outside of the outer wall as viewed in the vertical direction.

  Compared to the cushion set A1, the area where the inner wall of the second cushion 2 and the outer wall of the first cushion 1 are brought into contact with each other is reduced by a break, but the first cushion 1 is stable in use. Are held in place, and the same effect as the cushion set A1 can be provided.

  Also in the cushion set A <b> 2, as shown in FIG. 8, the hole 204 of the substantially donut-shaped second cushion 2 may be a recess having a bottom 205. In such a case, as shown in FIG. 9, a plurality of the cuts 206 in the second cushion 2 can be provided.

  While specific embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention. The specific shape and material of the cushion set according to the present invention are not limited to the above embodiment.

In the above embodiment, the first cushion 1 is constructed by injecting polyethylene pipe beads as a cushion material into a cover obtained by sewing elastic jersey fabric into a substantially columnar bag shape, and the second cushion 2 is elastic. Although an example has been described in which a polyester fabric is injected as a cushion material into a cover in which a certain jersey fabric is sewn into a substantially donut-shaped bag shape, the present invention is not limited to this.

The first cushion 1 and the second cushion 2 and the respective covers may be made of leather or a synthetic resin sheet regardless of the type of fabric.
The cushion material of the first cushion 1 and the second cushion 2 may be infused with fibers such as cotton and wool, polypropylene pipes, various beads such as rubber, buckwheat shells, foamed rubber, foamed resin pieces, and the like. It is also possible to employ a sheet of urethane foam or a network structure such as polyethylene, polyolefin, or polyester elastomer.

For both the first cushion 1 and the second cushion 2, the cushion material may be a combination of the above materials. For example, you may use the soft material equivalent to the 2nd cushion 2 which fits a collar part only in the upper layer part of the 1st cushion 1. FIG.
In short, an appropriate material may be selected so that the second cushion 2 is relatively softer than the first cushion 1 in total.
Note that the height in the vertical direction of the portion of the second cushion 2 where the shin, instep, and toes are directly deformed from the knees of the legs in the pressurized state is directly at the heel portion of the first cushion 1. It is preferable that the height is equal to or less than one half of the height in the vertical direction of the part that is deformed by riding.

  The substantially doughnut-shaped second cushion 2 is not limited to the circular ring shape as shown in the drawings, and may be a square ring shape or an indeterminate ring shape. Is not limited to the substantially cylindrical shape as shown in each figure, but may be a substantially prismatic shape, or a pillar shape with a narrow tip and a wide rear portion like a bicycle saddle when viewed from above and below. good. The point is that the inner wall 202 of the substantially donut-shaped second cushion 2 may be in contact with the outer wall 102 of the first cushion.

Moreover, if it is a cushion set of such a structure, a use will not be limited for seating. For example, when used for pillows, the first cushion 1 supports the user's head with a slight depression, and the second cushion 2 gently follows from the neck to the shoulder with a sufficient depression. You can get a feeling.

Claims (7)

A cushion set that deforms under pressure and restores its shape in a natural state,
The cushion set includes a substantially pillar-shaped first cushion and a substantially donut-shaped second cushion, and the first cushion and the second cushion are substantially equal in height in the vertical direction,
An inner wall of the second cushion is brought into contact with an outer wall of the first cushion;
The cushion set according to claim 1, wherein the second cushion is made of a material that is relatively softer than the first cushion. The cushion set according to claim 1, wherein the hole of the second cushion is inclined outward from the center as viewed in the vertical direction.   The cushion set according to claim 1 or 2, wherein the hole of the second cushion is a through hole.   The cushion set according to claim 1 or 2, wherein the hole of the second cushion is a bottomed depression.   The said 2nd cushion is a cushion set in any one of Claims 1 thru | or 4 which has one cut | interruption connected to the outward of the outer side wall of the said cushion from the said hole in the vertical direction view.   5. The cushion set according to claim 1, wherein the second cushion has a plurality of cuts connected to the outside of the outer wall of the cushion from the hole as viewed in the vertical direction. . The cushion set according to any one of claims 1 to 6, wherein each of the first cushion and the second cushion is covered with a cover such as fabric, leather, or a synthetic resin sheet.