Beds – Bedsteads – Having bottom
Patent
1995-04-05
1997-10-21
Grosz, Alexander
Beds
Bedsteads
Having bottom
5199, 5110, 5112, A47C 1900
Patent
active
056782616
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a cushion device utilized for a bed, sofa, chair, or seats for the use of a vehicle, etc., and more particularly relates to a cushion device which is comfortable because it is manufactured by a process based on engineering to accommodate the human body, and has long life.
BACKGROUND ART
Conventional cushion devices have employed sponges. Over time the sponges have a drawback that the elasticity of the sponges is reduced and finally lost because they are under weight beyond their elastic limit. Recently, a cushion device was developed, which has a predetermined area as a network structure connected by steel springs. The conventional cushion device made of the steel springs is shown in FIG. 1, which illustrates a part of the cushion device for a bed. In the conventional device, a plurality of steel springs are connected with one another between an upper frame 1 and a bottom frame 2 in a network arrangement.
However, the conventional device has drawbacks such as having a complex manufacturing process, making noises during cushion movement, and not providing the best comfort, in view of engineering to accommodate the human body due to the degree of different loads against the springs according to each of the bending portions of the human body.
SUMMARY OF THE INVENTION
Therefore, to solve the above problems in the conventional device, it is an object of the present invention to provide a cushion device on which a person feels the best comfort because the cushion was manufactured by a process based on engineering to accommodate the human body.
It is another object of the present invention to provide a cushion device having almost no noises during cushion movement.
It is another object of the present invention to provide a cushion device that is easy to manufacture and has long life relative to prior art sponge cushions.
To accomplish the above objects of the present invention, there is provided a cushion device, the device comprising: an outer supporting member which has a predetermined area and is formed to include a shock absorbing space; and a cushion plate which includes bars located at a predetermined interval inside from the outer supporting member and connected to the outer supporting member by a plurality of elastic springs, and a plurality of steel wires that are installed at regular intervals between the two bars.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view showing an example of a conventional cushion device.
FIG. 2 is a perspective view of a preferred embodiment of a cushion device according to the present invention.
FIG. 3 is an enlarged perspective view of portion "A" in the device of FIG. 2.
FIG. 4 is a partially cut-away perspective view of a bed with a cushion device according to the present invention.
FIG. 5 is a partially cut-away perspective view of a sofa with a cushion device according to the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
The preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
FIG. 2 is a perspective view of a preferred embodiment of a cushion device for the bed according to the present invention. The cushion device of the present invention comprises an outer supporting member 20 which has a predetermined area and is formed to include a shock absorbing space 10. The outer supporting member 20 preferably has a hollow pipe shape made of steel. The outer supporting member 20 includes a first outer frame 21 with a predetermined area, a plurality of supporting frames 22 which are extended downwards from the first outer flame 21 so as to form the shock absorbing space 10, and a second outer frame 23 which is fixed to the supporting flames 22 and is in a parallel arrangement with the first outer frame 21. A cushion plate 30 is elastically fastened to the first outer frame 21 of the outer supporting member 20 by a plurality of first elastic springs 40.
The cushion plate 30 includes a pair of bars 31, 31' which are fastene
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