JPH0223182Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pinerest device that has different hardness depending on whether the upper side or the lower side is used.

Generally, conventional mattress devices are constructed by connecting a large number of springs in a flat plate shape to form a spring unit, and attaching elastic bodies to the upper and lower surfaces of the spring unit via protective materials. Therefore, the stiffness of such a pinerest device is the same whether the top side or the bottom side is used.

In other words, since a single pine stress device only has a certain level of hardness, it is very inconvenient if the user changes and the user has different preferences, or if the user wants to change the hardness depending on their physical condition, etc. It was hot.

The applicant has previously disclosed a pinerest device that solved the above-mentioned problem in Utility Model Publication Nos. 54-29057 and 14174, but the present invention has an even greater difference in the degree of hardness and softness of the upper and lower surfaces. The aim is to provide a system with the following features:

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

FIG. 1 is a partially cutaway sectional view of a pinerest device according to the present invention.

In the figure, reference numeral 1 denotes a spring unit, and this spring unit 1 connects a large number of springs 2 . . . in a flat plate shape with helical wires 3 . 2... connected with clips 5, 5.

On the upper surface of the spring unit 1 constructed in this way, a synthetic resin net 7 is fixed to the frame line 4 by clips 8 via a nonwoven fabric 6 for sound insulation.

As shown in FIG. 2, the width dimensions a and b of the net-like body 7 in both the short and long directions are slightly 10 mm wider than the width dimensions A and B between the opposing frame lines of the periphery of the spring unit. When fixing the net-like body 7 to the frame line 4, the clip 8 is once hooked to the frame line 41 and the end striations 71 of the net-like body 7. ).

The filament 72 and the frame line 4 at a position facing this fixed part
2, and longitudinal filament 73 and frame line 43, filament 7
4 and 44, if the clips 8 are tightened in the same way, the net-like body 7 will be forcibly tensed in both the longitudinal and lateral directions.

On top of the net-like body 7, a urethane foam 10 is polymerized and added using cotton 9 as an elastic body as a protective material.
The lower surface of the spring unit 1 is not covered with a net-like material, but instead has a coir patch with PP cloth inserted therein as a protective material, a cotton 11, and a urethane foam 12 as an elastic material.

The elastic bodies 10 and 12 are fixed to the spring unit 1 with a flange cloth 13 via a clip 14 and covered with an exterior material 15.

According to the pine tress device having the above configuration, when using either the upper surface side or the lower surface side, the hardness is different between one side on which the synthetic resin net is stretched and the other side on which the synthetic resin net is not stretched. The elasticity varies depending on the difference in elasticity, and the elasticity of the surface on which the net-like body 7 is provided as a pinerest is such that the load applied to the net-like body is distributed and supported by the entire spring unit 1, so that it can be used for a user lying down. The elasticity of the surface on which the net-like body 7 is not provided gives a hard feel and gives a soft feel because local depressions are likely to occur.

That is, the presence or absence of the synthetic resin network 7 that has no elasticity in the thickness direction is determined by the difference between the elastic protective material with low elasticity and the soft protective material with high elasticity as disclosed in the known Japanese Utility Model Publication No. 54-29057. Rather than the difference in elasticity, it is possible to provide a clearer difference in hardness and softness between the upper and lower surfaces of the pinerest device.

Furthermore, as mentioned above, the mesh body 7 is not simply fixed to the spring unit 1, but is forcibly tensioned against the frame line 4 around the spring unit 1, and this tension prevents the mesh body 7 from curving. Therefore, the load is thoroughly distributed to the spring unit 1 and the spring 2 of its component parts, and the user who lies down can feel an even harder feeling.

As described above, in the present invention, elastic bodies are attached to the upper and lower surfaces of the spring unit, each of which is constructed by connecting a large number of springs in a flat plate shape and arranging a frame line around the periphery, through protective materials. ,
A synthetic resin mesh body having a width narrower than the width between the opposing frame lines arranged around the periphery is attached to only one of the upper and lower surfaces of the spring unit, and the ends of the synthetic resin network body are connected to the frame lines. Since the synthetic resin network is tensioned on the spring unit by fixing it to the spring unit, it is possible to provide a mattress device in which the hardness is significantly different between the upper surface side and the lower surface side.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view showing one embodiment of the present invention. FIG. 2 is a plan view showing the state in which the synthetic resin net-like body is stretched over the spring unit. Code, 1...Spring unit, 2...Spring, 3...Hercal spring, 4...Frame line, 7...Network, 9, 11...Protective material, 10,
12...Elastic body.

Claims (1)

[Scope of utility model registration request] In a spring unit constructed by connecting a large number of springs in a flat plate shape and having a frame line arranged around the periphery, an elastic body is attached to the upper and lower surfaces of the spring unit via protective materials, respectively. By attaching a synthetic resin mesh body whose width is narrower than the width between the opposing frame lines arranged on the periphery only in one direction, and fixing the ends of the synthetic resin mesh body to the frame lines, the spring unit can be fixed. A pine tress device characterized by having a synthetic resin network under tension.