Patent Application
20100205749
(1) Field of the Invention
The present invention relates generally to an air cushion unit, and more particularly to an innovative one which is prefabricated with interconnected air chambers, close-packed air columns and nozzles, allowing to adjust flexibly the pressure value for meeting the customer demands.
(2) Description of the Prior Art
People often place pads or cushions on the chairs or beds for comfortable sitting or lying.
Such pads or cushions are generally made of foamed materials such as cotton cloth or sponge, or sealed liquid materials. However, the following shortcomings are observed during actual applications:
Firstly, any cushion presents a given flexibility no matter it is made of whichever materials, so it is impossible to change the flexibility for most comfortable sitting or lying at one's own discretion or preference.
Secondly, any cushion is designed for specific requirements, namely, the flexibility may be pursued with compromise of air permeability, or air permeability may be pursued with compromise of comfort.
Thirdly, some cushions may lose original comfortable function due to gradual hardening of soft materials.
Fourthly, the cushions made of any material will be subject to the distortion or deformation of the stress surface, making it difficult to achieve optimum sitting or lying comfort.
Thus, to overcome the aforementioned problems of the prior art, the inventor has provided the present invention of practicability. The major objective of the present invention is to assemble an air cushion unit composed of air pipe, air ring and air chamber along with close-packed air columns; moreover, with the support of interconnected independent air chambers, the air cushions permit to generate consistent stress state, thus achieving optimum sitting or lying equilibrium and comfort.
Another objective of the present invention is to design interconnected independent air chambers of air cushion units along with air nozzles, enabling the users to set flexibly the stress value for meeting their own sifting or lying requirements.
Another objective of the present invention is to design independent air chambers for realizing excellent air permeability on the surface.
Another objective of the present invention is to arrange the tapered mouths at both sides of air columns, so that air cushion units could be compactly assembled via screws.
The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.
Referring to
Air cushion units 10, 11 are linked by air column 50. Referring to sectional view in
Based on the design of tapered mouths 52, 53 at both sides of air column 50, when screws 55, 56 get into contact with air pipes 31, 32, the flexible air pipes 31, 32 are gradually compacted along the oblique surface of tapered mouths 52, 53, so that the tapered mouths 52, 53, air pipes 31, 32 and screws 55, 56 are tightly assembled.
Referring to
The aforementioned air cushion is combined with an air nozzle 60 at a proper location, such that air cushion composed of several air cushion units 10,11 can be regulated for air filling or releasing with a consistent air pressure.
To this end, based on the design of the present invention that air cushion units are composed of interconnected independent air chambers, air pipes and air rings, along with specifically arranged air columns and air nozzles, the following advantages of sitting or lying can be realized:
Firstly, irrespective of the shapes or dimensions of air cushions, air pipes and air chambers are interconnected with air. Thus, when a proper air pressure is given, the entire air cushion surface is subject to a balanced stress s t ate for supporting the human body with optimized comfort.
Secondly, the air cushion of the present invention allows to adjust flexibly and properly the air pressure according to different user demands.
Thirdly, the adjustable air pressure of the air cushion eliminates the loss of comfort generated by hardening of materials.
Fourthly, the air chambers of air cushion are independent components, so a good permeable channel is shaped on the air cushion, enabling to realize optimum permeability and feel ventilative.
Fifthly, as the air columns are closely connected, air cushion units can be assembled flexibly into the air cushion of the present invention for a broad range of applications.
To sum up, the present invention provides an air cushion device with excellent performance and industrial benefits that can be used for a broad range of applications, so the patent application is claimed.
