Acoustic vibration system with speaker for air mattresses

#The present invention relates to a system inducing the acoustic vibration of air mattresses, and more particularly, to an acoustic vibration system with one or more speakers for the air mattresses of beds, chairs or seats, where a sound-amplifying unit of the speaker is closely mounted on the sealed body of an air mattress and connected to an external audio system in order to acoustically vibrate the air mattress through the influx of acoustical energy to the mattress by dispersing the acoustical energy from the speaker, thereby making it possible to feel sounds through the body of a user in contact with the air mattress as well as enjoying music through the ears of the user.

#Generally, a mattress for beds is a spring mattress, in which coil springs having elasticity are vertically and densely arrayed with uniform height, and a sponge or cushion is closely adhered to the upper and lower ends of the springs, which is entirely covered with a cover. Taking the effect of mattresses on the human body into consideration, such spring mattresses are focusing on a cushioning effect provided by the elasticity of the springs. When turning on an audio system, with a speaker connected thereto and installed on the surface of the spring mattress in a manner such that they face each other, the sponge layer absorbs sound energy radiated by the speaker, causing the sound to be vanished. It is thus impossible to transmit sound from the speaker to the other side of the mattress. With this regard, in order to radiate sound from a speaker closely mounted to one side of a mattress to acoustically vibrate the other, the inside of a mattress needs to contain a mediator capable of transmitting sound. The most preferable material used as such a mediator is air, through which sound can be transmitted effectively. A mattress filled with air has been already developed to be utilized mainly outdoors, but it has the drawbacks of absence of durability and low cushioning effect, and thus has a restricted application range, thereby causing difficulty when being applied to beds, widely used as household furniture.

#On the other hand, an air mattress having advantages of the spring mattress may be, with reference to FIG. 4, prepared by forming a coating layer, capable of providing an air-sealing effect, to the inside or outside of a three-dimensional woven fabric in which lots of wires ‘W’ are placed between the upper fabric surface 2 and the lower fabric surface 3, and connect the two surfaces 2 and 3 together to maintain equilibrium of the mattress, and then being filled with compressed air, as disclosed in Korea Pat. No. 227665, which was proposed by the inventor of the present invention.

#FIG. 1 is a perspective view showing an air mattress for beds, with speakers of the present invention installed on the air mattress;

#FIGS. 2A to 2C are views showing the speakers installed on the side and lower surfaces of the air mattress;

#FIG. 3 is a perspective view showing an air mattress for seats of a car or airplane with speakers of this invention installed thereon;

#The present invention will be explained in more detail with reference to the following embodiments in conjunction with the accompanying drawings. However, the following embodiments are provided only to illustrate the present invention, and the present invention is not limited to them.

#FIG. 1 is a perspective view showing speakers installed on an air mattress for beds, where the air mattress of the present invention is produced in a size similar to that of a general bed 10 and inflated with air to establish the same form as a conventional spring mattress, and FIGS. 2A to 2B are views showing the speakers installed in the side and lower surface of the air mattress.

#The air mattress 20 of the present invention may be produced in a form of a rubber tube with one or a plurality of inlets for air injection. However, it is preferable to produce the air mattress 20 using a three-dimensional woven fabric 1 of FIG. 4. In order to produce the three-dimensional woven fabric 1, upper and lower fabric surfaces 2 and 3 are connected to each other by a great number of wires ‘W’ to form the fabric 1, with a coated layer formed on the inside or outside surface of the fabric 1 to accomplish an air-sealing effect as well as to maintain desired durability and resist air-expansion pressure.