JPS591559Y2 - spring pine tress - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a spring pinerest in which the outer periphery is made harder and the effective area is expanded.

The spring structure generally used for pine tresses is
The drum-shaped coil springs are arranged in a flat plate shape at equal intervals, a frame is set around the outer periphery, and these are connected by helical wires, so that the load is not applied to the coil spring located in the center of the spring structure. When a load is applied, the load is distributed to the surrounding coil springs by connecting the helical wires, but in the case of coil springs located on the outer periphery, the load is only distributed toward the center, so they receive the same load. Even when the outer circumferential portion is dented, the outer circumferential portion has the disadvantage that it is more likely to be dented.

That is, the pinerest as a finished product also had problems such as the outer periphery being soft and when sleeping near the outer periphery, the body would lean outward and feel like falling off.

The object of the present invention is to provide a spring pinerest designed to eliminate such drawbacks.

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

The main part of the present invention, the filling 1, has a substantially rectangular box shape or shallow shape as shown in Fig. 1, the frame body 2 is made of an elastic body, and the spring holder is made of various materials, including the material 3 and soft urethane foam or urethane foam. It consists of a sharp part 4 of a foam body, and when the sharp part 4 is foam-molded, a part of urethane is impregnated into the frame body 2 and the spring receiver material 3, so that the three parts are integrally molded.

Here, the sharp portion 4 is made of a material with good cushioning properties, and the frame 2 is used to reinforce the outer periphery of the flat plate-like spring structure, so it is preferable to use a material with appropriate hardness.

The material 3 of the spring receiver is sized so that the outer circumference slightly overlaps the frame 2, and is made of a material that is easily impregnated with urethane.

Similarly, the frame 2 urethane is made of a material that is easily impregnated.

Next, as shown in FIG. 2, the flat spring structure 5 consists of a large number of coil springs 5a, helical wires 5b for connecting the coil springs 5a, and a frame line 5C.
The inner filling 1 is placed on the front and back surfaces from above and below.

That is, the flat plate-shaped spring structure 5 is held between the upper middle part and the lower part part.

Further, the upper and lower fillings are covered with an exterior body 6, and the exterior bodies 6 are connected with a fastener 7, thereby completing the spring mattress.

As another modified embodiment, the frame body 2 and the spring receiver 1 part 3
It is also conceivable that the sharp part 4 is adhesively integrated with the sharp part 4.

The spring pine tress of the present invention has an elastic frame 2 in the middle 1, so that when weight is applied to the mat, the outer periphery becomes stiffer, and the front surface of the pine tress is prevented from sliding. Can be used effectively.

Furthermore, unlike the method of partially inserting auxiliary springs to increase the stiffness, the stiffness does not become uneven depending on the location, and a certain level of cushioning properties can be obtained.

Additionally, by reinforcing the outer periphery, unstable lateral vibration of the pinerest can be prevented.

Furthermore, since the material 3 of the spring holder reaches the inside of the frame 2,
This provides practicality such as the fact that the frame line 5C of the flat spring structure 5 does not feel like a foreign object when the pine tress is completed.

In addition, when the spring pine tress is formed, the upper half-filled frame 2 and the lower frame 2 are in contact with each other, and ventilation is performed through the contact surfaces.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view with a part cut away of the filling 1 used in the pine tress of the present invention, and Fig. 2 is a pine l-
FIG. 3 is an enlarged cross-sectional view of main parts showing a completed state of the response. 1... Inner filling, 2... Frame, 3...
... Spring holder, 4 ... Sharp part, 5 ... Flat spring structure, 6 ... Exterior body.

Claims (1)

[Scope of utility model registration request] a sharp part of the urethane foam; a frame body having a harder elasticity than the sharp part and protruding from the outer periphery of one side of the armor part; and a frame body attached to one side of the sharp part and partially wrapping with the frame body. A shallow-shaped upper filling and a lower filling are integrally molded with the spring receiving material, and the flat spring structure is held between the upper and lower filling in the vertical direction. A spring pine mattress in which the frames are in contact with each other and the upper and lower infills are covered with an exterior body.