Patent Application
20050108822
1. Field of Invention
The present invention relates to a cushion, and more particularly to an elastic cushion that can easily let air through.
2. Description of the Related Art
With reference to
1. Although the foam (65) has many small chambers formed inside, those small chambers are too small and do not easily let air through. When sitting on the conventional cushion with the foam (65) inside, a user soon feels a stickiness between the buttocks and the cushion because of the lack of through-flow air.
2. The foam (65) can not provide a long useful life, because it is easily oxidized by the air and becomes brittle after long term use.
Because of the above disadvantages of the conventional cushion in
To overcome the shortcomings, cushions that can provide long-term comfort is still needed, and a cushion in accordance with the present invention obviates or mitigates the aforementioned problems.
The primary objective of the present invention is to provide an elastic cushion that has a cover and an elastic body received inside the cover. The elastic body is made of multiple elastic folded tubes and has multiple gaps inside. Because of the gaps formed inside the elastic body, air can easily pass through the cushion, and the elastic cushion can provide a non-sticky sitting feeling to a user.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
The cover (35) may be made from cloth and has a cavity (not numbered) formed inside. The cover (35) is air permeable and easily lets air through.
The elastic body (30) is received inside the cover (30) and has a top surface (31), a rear surface (32), an inner portion (33) and multiple elastic tubes (10), such as plastic tubes. Each elastic tube (10) is made of a stable material that is not easily oxidized and has a hollow center (11). The elastic tubes (10) are randomly folded to form a square, a cylinder, and so on. Such kind of folded elastic tubes (10) provides a comfortable feeling when sitting on it, so the folded elastic tubes (10) can be used as a soft stuffing inside the cushion. The folded tubes (10) are melted at the folded point, so that the elastic tubes (10) can be formed as many random weld portions (20) and gaps (22). The hollow centers (11) of the elastic tubes at the weld portion (20) are communicated with each other. Furthermore, the top surface (31) and the rear surface (32) of the elastic body (30) may be folded by a high density of the elastic tubes (10), and the inner portion (33) of the elastic body (30) may be folded be a low density of the elastic tubes (10). Because the cover (35) easily lets air through and the elastic body (30) has many gaps (22), the cushion can allow air to enter and leave.
With reference to
The elastic cushion in accordance with the present invention has the following advantages:
1. The elastic body (30) is made of the elastic tubes (10) with hollow centers (11) and the gaps (22) inside the elastic body (30), so that the air can easily enter and leave the elastic body (30). When sitting on the elastic cushion with the elastic body (30) received inside the cover (30), a user will not feel sticky because of the free flow of air between the buttocks and the elastic cushion.
2. Because the elastic body (30) is made of the elastic tubes (10) and the material of the elastic tubes (10) is stable and not easily oxidized, the elastic cushion can provide a long useful life.
The invention may be varied in many ways by a person skilled in the art. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications are intended to be included within the scope of the following claims.
