JPH046599Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a cushion that prevents the feet from becoming numb when sitting straight.

[Prior art and problems]

Conventional products on the market include rattan stretched over a metal frame, or molded products made of hard synthetic resin, but these have a fixed shape and are hard, so they are difficult to adjust to the frame and flesh of the user's buttocks. However, it is difficult to use it for a long time because it cannot cope with various different conditions.

Furthermore, a device in which a donut-shaped air bag is placed inside a cloth outer bag is known as Publication No. 1977-10.

Furthermore, a device in which an air bag made of rubber or vinyl is simply placed inside a cover made of cloth is known from Japanese Utility Model Application No. 51-44515.

However, the air bag of the above-mentioned Utility Model Publication No. 50-10 has a donut shape to prevent it from tipping over, so it can be used like a zafuton, but since it is for sitting straight, it takes up a lot of space to put it between your legs. The structure becomes complicated, and in order to stabilize the outer bag, the ceiling cloth and bottom cloth of the outer bag must be connected with a hanging string through the hole in the center of the donut-shaped air bag, making the structure even more complicated. It is becoming.

On the other hand, the one of Utility Model Application Publication No. 51-44515 is just a theoretical idea and does not disclose at all what kind of cloth to use.

[Problem to be solved]

This idea was developed to improve the shortcomings of conventional products, and it is designed to fit any body shape regardless of the individual differences of the user, is stable, is compact when carried, and has an elegant and beautiful appearance. The purpose is to provide the market with products with a good appearance.

[Means for solving problems]

This device consists of an outer bag made of cloth and an air bag housed inside the outer bag, and the outer bag consists of two approximately circular or polygonal upper and lower edge cloths, and a cylindrical body cloth that connects these. Therefore, they are sutured together to form a drum-like shape, and a part of the outer bag is provided with an opening/closing opening, and the air bag is made of a synthetic resin film, and when air is blown into the bag, the air bag is made of a synthetic resin film. The shape of the bag is substantially similar to the shape of the outer bag, and the volume is larger than that of the outer bag, and the body cloth is a cloth that has elastic properties in the circumferential direction. The problem was solved by creating a unique air action for sitting straight.

〔how to use〕

First, an empty air bag is placed into the outer bag through the opening and closing opening, and air is blown into the air bag and the stopper is closed. The amount of air at this time is about 80% of the amount of air that can be stored in the total volume of the outer bag. Then, the user closes the opening of the outer bag, places the air action of this invention between both heels of the user in a sitting position, and then places the buttocks on top of the air action.

The next time you carry it around, open the opening, remove the plug from the air bag, let the air out, and make the overall volume more compact.

〔effect〕

The device of this invention, which can be constructed and used in this way, is compact when carried;
When air is injected into the air bag, it assumes the shape of an outer bag, and the vertical pressure caused by placing the buttocks on it causes the air bag to expand in the radial direction, and the shape of the body of the outer bag follows suit. The diameter of the part is large so that it can be deformed stably, and since the inside is air, the upper surface also has a shape that follows the shape of the user's buttocks, so there is no discomfort at all.

In addition, since the entire body is flexible, it perfectly adapts to your movements even if you move it back and forth or side to side while sitting straight. Moreover, due to this flexibility, regardless of the user's body shape, the buttocks and legs will not hurt even if the user uses it for a long time, and since the weight is not placed on the heel, the foot will not become numb.

If the body cloth is a non-stretchable cloth or the circumferential direction coincides with the length or width of the cloth, even the slightest movement of the body will cause an external force due to the pressure of the body weight to act in the diagonal direction of the body cloth. This distorts the cushion, making it extremely unstable and making it impossible to maintain a sitting posture.However, in this invention, the deformation due to increased pressure becomes an elongation deformation of the body cloth in the circumferential direction, so it is stable.

In addition, in this device, since the volume of the air bag is larger than the volume of the outer bag, even when a load is applied, no pulling force is applied to the air bag, and the air bag is Even if the bag is made of synthetic resin and does not have much tensile strength, there is no risk of it breaking.

Furthermore, since the opening and closing opening is a fastener type, it is easy to open and close, and it is sufficiently strong when closed.

In addition, since the outer bag is made of cloth, it does not make any noise when it hits the floor, and it is suitable for Japanese traditional performing arts, especially when sitting seiza is required, and if the fabric and pattern are selected appropriately, These effects are further improved.

〔Example〕

A description will be given based on a typical embodiment of this invention shown in FIGS. 1 to 3.

10 is the outer bag of this air action, and 11
is an upper and lower end fabric, usually plain woven fabric, twill woven fabric,
Alternatively, use a durable fabric with almost no elongation in the vertical and horizontal directions, such as a woven fabric with a base texture of these materials. These end face cloths 11 are polygonal or approximately circular, but in this specification, a substantially circular shape does not have to be an exact circle, but may also be a polygon with rounded corners, an ellipse, or an oval shape. shall be included in the concept.

Reference numeral 12 denotes a body cloth having elastic properties in the circumferential direction, and is made of, for example, bias-cut plain weave cloth, twill weave cloth, etc., and is formed into a cylindrical shape, and the end cloth 11 is sewn to both ends of the body cloth. The outer bag 10 is formed into a drum shape as a whole. Although not shown, it is preferable that the stitched portion 14 formed by stitching is slightly shirred.

The body 12 fabric having elasticity in the circumferential direction is a 2-stroke or 3-stroke knitted stockinette fabric with a low elongation rate that suppresses the longitudinal and lateral elasticity of the biased fabric 5, or a stockinette fabric with a low elongation rate. A cloth woven from fibers may also be used.

This body cloth 12 may be made of a single layer as long as the cloth is strong, but it also includes a body cloth 12 that is combined with a backing cloth 13 having the same degree of elasticity and sewn together at the seam portion 14 with the end cloth 11. . A fastener 15 is attached to a joint in the axial direction of the cushion of the body cloth 12, and an opening/closing opening 16 is formed. In the illustrated example, a band 17 of a width sufficient to just cover the fastener 1 is provided on the outside of the fastener 15.
The band 17 is provided along the outside of the fifth section in the axial direction of the outer bag 10, and both ends of the band 17 are sewn together to the seam 14 of the end face cloth 11 and the body cloth.

On the other hand, the air bag 20 is made of synthetic resin film,
Its shape is almost similar to the outer bag 10, and its size is about 10 to 20% larger than the outer bag 10. 21 is this air inlet and outlet, and plug 2
2 or an air valve is provided. In order to adjust the overall shape of the air bag 20, a hanging material (usually a tape, tube, etc. made of the same material as the air bag) 23 may be provided between the upper and lower end films 24 of the air bag, but this is not always necessary.

The shape of the air bag 20 is not limited to the above-described shape, and may be spherical, trapezoidal, or donut-shaped.

[How to use and effects of Examples]

The product of this embodiment can be used in the same way as the product of this invention described above, and the band 17 serves as a cover for the 15 parts of the fastener, giving it a good appearance.
5 will not damage socks or kimono. Further, this belt 17 can be used as a handle when carrying the cushion of this invention while it is inflated with air. Further, since the opening/closing opening 16 is not provided in the part of the end face cloth 11 that comes into contact with the buttocks, the fastener 15 does not come into contact with it when the buttocks come into contact.

The one in which the body cloth 12 and the lining cloth 13 are layered in two layers is durable.

When the air bag 20 has a cylindrical shape, the fabric can be stored inside the outer bag 10 with the least amount of waste.

In the case of the air bag 20 in which the end film 24 of the air bag 20 is connected to the air bag 20 by a hanging member 23, or the donut-shaped one, the shape of the air bag 20 within the outer bag 10 is stable and the air action is stable. The overall stability is also good.

[Brief explanation of the drawing]

The drawings show something related to this invention, and FIG. 1 is a partially longitudinal front view of the inflated state, FIG. 2 is a perspective view of the broken appearance of the band in the inflated state, and FIG. FIG. 3 is a perspective view of only the air bag inflated, and FIG. 4 is an explanatory view of the device in use. Symbols in the figure, A... Air action, 10... Outer bag, 11... Edge cloth, 12... Body fabric, 14... Seam, 15... Opening/closing opening, 16... Fastener, 17
……band.

Claims (1)

[Claims for Utility Model Registration] 1. Consists of an outer bag made of cloth and an air bag housed within the outer bag, and the outer bag consists of two approximately circular or polygonal upper and lower edge cloths and a cylinder that connects them. The outer bag is sewn together with a body cloth to form a drum-like shape, a part of the outer bag is provided with an opening and closing opening, and the air bag is made of a synthetic resin film, When the air is blown into the bag, its shape is almost similar to the shape of the outer bag, and its volume is larger than that of the outer bag, and the body cloth has elastic properties in the circumferential direction. An air action for sitting seiza, characterized by being made of cloth that has 2. The air action for sitting upright as claimed in claim 1, wherein the body cloth has two layers of cloth having similar elastic properties on the inside thereof. 3. Claim No. 3 of the utility model registration, characterized in that the cloth having elastic properties in the circumferential direction of the body cloth is one of bias-cut cloth, cloth made of stretchable fibers, knitted fabric, and non-woven fabric. Air action for sitting straight as described in item 1. 4. The air action for sitting upright according to claim 1, wherein the shape of the air bag is one of spherical, cylindrical, and trapezoidal. 5 The position of the opening/closing opening is a part of the body cloth, and this opening/closing opening is provided long in the axial direction of the outer bag and has a fastener type, and both ends of the band attached to the outside are attached to the end face cloth. An air action for sitting upright as claimed in claim 1 of the utility model registration, characterized in that the air action is sewn together with the seams of the body cloth and the body cloth.