JP3176695U - cushion - Google Patents

Abstract

Provided is a cushion capable of effectively relieving lower back pain caused by sitting for a long time without impairing convenience as a normal seat chair.
A cushion includes a bottom surface portion, both side surface portions, a back surface portion, and a top surface portion, and the both side surface portions have a substantially triangular shape. The upper surface portion 6 is curved in a concave shape.
It is preferable that a recess is formed in the upper portion of the back surface portion 5, and it is preferable that a foldable leg mounting device 9 is connected to the tip of the bottom surface portion 4.
[Selection] Figure 1

Description

  The present invention relates to a cushion that has a function as a seat chair, can be used as a cushion for sitting, and can also perform a stretching exercise to stretch the back muscles when a load is applied to the waist.

  Seat chairs are widely used in Japan and other boarded oceans. A general seat chair is connected by a ratchet fitting so that the seat portion and the backrest can be adjusted in angle. Moreover, the cushion which accommodated the shock absorbing material in the inside has a small type used as a cushion, and a long type laid in the lower part of the lying body.

  In addition, the whole seat is composed of three to four parts made of a soft mattress, and the shapes of the three to four parts are specified and each of them can be pivotably joined to each other, thereby being used in various ways of use. There is a seat chair that can realize (see, for example, Patent Document 1).

  The seat chair described in Patent Document 1 is a trunk mattress made of flat parallelepipeds, and a columnar body having a trapezoidal cross section that is rotatably connected to a fold portion at one end of the upper surface of the trunk mattress. And a head mattress composed of a columnar body having a substantially triangular cross section that is rotatably connected to a fold portion at one end of the upper surface of the back mattress.

Japanese Utility Model Publication No. 6-52622 (utility model registration request, etc.)

  However, conventional seats are not always satisfactory in terms of operation and burden on the waist. For example, even the seat chair of the above-mentioned patent document 1 is troublesome in use, the stability at the time of sitting cannot be obtained, and if sitting for a long time, a burden is applied to the lower back, and back pain is caused. There was a problem that occurred.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cushion that can effectively eliminate lower back pain caused by sitting for a long time without impairing convenience as a normal seat chair.

  In order to solve the above-mentioned problem, the cushion of the present invention is a cushion having a bottom surface portion, both side surface portions, a back surface portion, and an upper surface portion, and both side surface portions exhibit a substantially triangular shape, and the upper surface portion is concave. It is characterized by being curved.

  In the cushion of the present invention, it is preferable that a recess is formed in the upper portion of the back surface portion.

  In addition, a foldable leg rest can be suitably connected to the tip of the bottom surface.

  According to the cushion of the present invention, when lower back pain occurs after sitting for a long time, a stretch effect of stretching the spine can be obtained by becoming a prone on the upper surface portion that is curved in a concave shape.

  Further, by connecting a foldable leg rest to the front of the bottom surface, it is possible to enhance a feeling of relaxation when sitting.

It is the whole perspective view which notched a part of cushion of one suitable example of the present invention. It is a side view of the cushion shown in FIG. It is sectional drawing of the cushion shown in FIG. It is a side view which shows the state which folded the leg mounting tool of the cushion shown in FIG. (A) (b) (c) is explanatory drawing which shows the use condition of the cushion shown in FIG. 1, respectively.

Hereinafter, embodiments of the cushion of the present invention will be described with reference to the drawings.
A cushion 1 according to an embodiment of the present invention shown in FIG. 1 to FIG. 3 includes an intermediate material 2 such as urethane foam having cushioning properties, and a cover material 3 covered around the intermediate material 2. ing. The cushion 1 includes a rectangular bottom surface portion 4, side surface portions 7, a back surface portion 5, and a top surface portion 6. Both side surface portions 7 have a substantially triangular shape.

  In the present invention, the upper surface portion 6 is curved in a concave shape. As shown in FIG. 5A, the upper surface portion 6 is curved in a state where an ideal stretch effect can be obtained when the upper surface portion 6 becomes a prone position. Moreover, as shown in (b), when lying on the upper surface 6, the back muscles can be bent at a comfortable angle.

  In the illustrated cushion 1, a recess 8 is formed in the upper portion of the back surface portion 5. The concave portion 8 is formed at the center of the upper portion of the back surface portion 5 and is slightly inclined toward the back surface portion 5 side. By providing the recess 8 in the upper part of the back surface part 5, the neck and the chin can be accommodated when the upper surface part 6 is prone, while the neck and the back of the head can be accommodated when lying on the back. it can. For this reason, the stability of the head during use is improved.

  Further, a foldable leg mount 9 is connected to the tip of the bottom surface portion 4 of the cushion 1. The leg resting tool 9 has a curved shape at the tip and a slightly bulky central portion. In addition, the leg rest 9 is connected to the tip of the bottom surface portion 4 of the cushion 1 by a connecting portion 10 so as to be foldable. Accordingly, as shown in FIG. 4, when carrying or storing, the leg rest 9 is folded down to the upper surface portion 6 side, so that the convenience is improved.

  Next, based on (a), (b) and (c) of FIG. 5, the usage method of the above-mentioned cushion of the present invention will be described.

  FIG. 5A shows a state in which the upper surface portion 6 is prone. In this state, the body is supported by the arm and the head is lifted to perform stretching exercises to stretch the back muscles, and the back pain when sitting for a long time can be eliminated. Further, by placing the neck and chin on the recess 7, it is possible to watch TV or read with the back straight.

  FIG. 5B shows a state in which the person lies on his back, the back is placed on the inclined portion 6, and the back of the head and neck are placed in the recess 8. In this state, the back muscles can be bent at a comfortable angle and the stability of the head can be improved.

  (C) of FIG. 5 shows the state which used the cushion 1 of this invention as a seat chair. In this case, the back muscles can be bent at a comfortable angle, and by placing the legs on the leg resting tool 9, the legs become easier and the relaxed feeling can be enhanced.

DESCRIPTION OF SYMBOLS 1 Cushion 2 Middle material 3 Cover material 4 Bottom surface part 5 Back surface part 6 Upper surface part 7 Side surface part 8 Recessed part 9 Leg mounting tool 10 Connection part

Claims (3)

  A cushion comprising a bottom surface portion, both side surface portions, a back surface portion, and an upper surface portion, the both side surface portions having a substantially triangular shape, wherein the upper surface portion is curved in a concave shape.   The cushion according to claim 1, wherein a concave portion is formed in an upper portion of the back surface portion.   The cushion according to claim 1, wherein a foldable leg rest is connected to the tip of the bottom surface.

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