JPH0334923B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mattress device that has different hardness depending on whether the upper side or the lower side is used.

In general, conventional mattress devices are constructed by connecting a large number of coil springs in the form of rectangular plates to form a spring unit, superimposing elastic materials on the upper and lower surfaces of the spring unit, and covering them with an exterior material.

Therefore, the stiffness of such a pinerest device is the same whether the upper side or the lower side is used. In other words, since a single pine stress device only has a certain level of hardness, it is very inconvenient when different users have different preferences or when the user wants to change the hardness depending on their physical condition. It was hot.

The present invention was made based on the above circumstances, and
The object is to provide a very convenient mattress device that has different hardness depending on whether the upper side or the lower side is used.

An embodiment of the present invention will be described below based on the drawings.

In the figure, 1 is the first spring unit. This first spring unit 1 includes a large number of first springs 2a, 2b, . . . formed of hard steel wire.
are combined along the width direction of the first spring unit 1.

The first springs 2a, 2b... have spiral portions 3a, 3b... and each adjacent spiral portion 3a, 3b.
Connecting rods 4a, 4 connecting the upper and lower ends of...
It is formed by continuously forming b... That is, to explain one of the first springs 2a as an example, first, the hard steel wire is lowered and wound around the first spring.
A spiral portion 3a is formed. This first spiral portion 3a
From the end of the rising edge, a lower connecting rod 4a having one end connected to this end is led out in a substantially U-shape. A hard steel wire is raised up from the other end of the lower connecting rod 4a and wound to form a second spiral portion 3b in which a portion of the spiral is engaged with the first spiral portion 3a. From the rising terminal end of the second spiral portion 3b, an upper connecting rod 4b having one end connected to this terminal end is led out in a substantially U-shape. A hard steel wire is made to fall from the other end of the upper connecting rod 4b and wound around it, and a part of the spiral is wrapped around the second end.
A third spiral portion 3c is formed which is engaged with the spiral portion 3b.

By sequentially repeating and forming the spiral portions 3a, 3b, 3c... and the upper and lower connecting rods 4a, 4b... in this way, a connecting rod 4a, which connects the upper and lower ends of the spiral portions 3a, 3b... 4b... are connected linearly to form a first spring 2a. The first springs 2a, 2b... are arranged in parallel as shown in FIG. Adjacent ends are connected by helical wires 5, respectively, so that the first springs 2a, 2b, etc. arranged in parallel are connected in a rectangular plate shape to form the first spring unit 1. There is. In addition, the first
Frame lines 6, 6 are drawn on the upper and lower surfaces of the springs 2a, 2b... of the first springs 2a, 2b...
It is connected to connecting rods 4a, 4b, .

On the other hand, the second spring unit 10 is constructed by combining a large number of second springs 2a', 2b', . . . along the width direction of the second spring unit 10. These second springs 2a', 2b'...
... has the same shape as the first springs 2a', 2b', etc. described above. That is, the hard steel wire is wound in a downward direction to form the first spiral portion 3a'. From the trailing end of the first spiral portion 3a', a lower connecting rod 4a' having one end connected to the end is led out in a substantially U-shape. A hard steel wire is raised up from the other end of the lower connecting rod 4a' and wound to form a second helical portion 3b' in which a portion of the helix is engaged with the first helical portion 3a'.
From the rising end of this second spiral portion 3b', an upper connecting rod 4b' having one end connected to this end is led out in a substantially U-shape. In this way, the spiral parts 3a', 3
By sequentially repeating the formation of b'... and the upper and lower connecting rods 4a', 4b'..., these spiral parts 3a',
Connecting rods 4a', 4b'... connecting the upper and lower ends of 3b'...
A second spring 2a' is formed in which . . . is continuous in a straight line. And second springs 2a', 2b'...
... are arranged in parallel, and each second spring 2a'2b'...
Adjacent ends of the upper connecting rod and the lower connecting rod are connected by helical wires 5', respectively, so that the second springs 2a', 2b', etc. are arranged in parallel. The second spring unit 10 is configured by being connected in a rectangular plate shape. Also,
Second springs 2a', 2 connected in a rectangular plate shape
Frame lines 6', 6' are provided on the periphery of the upper and lower surfaces of b'.... and the first springs 2a, 2a.
The second springs 2a, 2b... are made of hard steel wire having a wire diameter smaller than that of the hard steel wire forming...
is formed. Therefore, the amount of elastic deformation for the same load is higher for the second springs 2a, 2b... than for the first spring.
The springs 2a, 2b, . . . are larger than the springs 2a, 2b, . Then, on the upper surface of the first spring unit 1, a protective material 11 such as cotton felt or sisal having a size approximately equal to the size of the first spring unit 1 and a synthetic resin net 12 are sequentially polymerized, and this synthetic resin net A second spring unit 10 is superimposed on the upper surface of the body 12, and elastic materials 16, 16 such as cotton or urethane foam are superposed on one surface of the first spring unit 1 and one surface of the second spring unit 10. However, these are covered with an exterior material 17 to constitute a mattress device. The protective material 11 prevents the first spring unit 1 and the second spring unit 10 from coming into contact with each other and generating unpleasant noises. Further, as shown in FIG. 5, the synthetic resin net 12 is made of a synthetic resin such as polypropylene and is integrally formed with a net 15 formed by vertical bars 13 and horizontal bars 14 in a lattice shape. It's bright. Frames 6, 6' provided on the peripheries of the first and second spring units 1, 10
Although not shown, the peripheral edges of the synthetic resin net-like body 12 are connected by clips or the like. According to the mattress device having the above structure, the hardness of the mattress device when using either the upper surface side or the lower surface side is determined by the first spring unit 1 and the second spring unit 1.
The difference depends on the amount of elastic deformation of the spring units 10 under the same load. For example, when a user lies down on the upper surface side, the second spring unit 10 receives a load via the upper surface side elastic member 16.

The second springs 2a', 2b'... making up this second spring unit 10 have a smaller wire diameter than the first springs 2a, 2b... making up the first spring unit 1. Since it is made of hard steel wire, the amount of elastic deformation is large,
Provide soft support to users.

The load applied to the second spring unit 10 is then applied to the synthetic resin network 12. Since this synthetic resin network body 12 has moderate rigidity and moderate flexibility, it is possible to disperse the load and prevent local collapse.
Therefore, by using the synthetic resin net 12, a hard mattress device can be obtained, so that a correct sleeping position can be maintained. The load dispersed by the synthetic resin network 12 is transferred to the protective material 11.
It is applied to the first spring unit 1 via.
A distributed load is applied to the first spring unit 1, and the first springs 2a and 2b constituting the first spring unit 1 are
... are made of hard steel wire having a larger wire diameter than the second springs 2a', 2b'..., so that the first spring unit 1 is more elastically deformable than the second spring unit 10. Quantity is small. That is, in this case, the second spring unit 10 closest to the user first undergoes a large elastic deformation, and then the first spring unit 1 gradually undergoes a small elastic deformation, resulting in a soft mattress device for the user. On the other hand, if the user lies down on the lower side, the first
A load is applied to the spring unit 1 of. At this time, since the amount of elastic deformation of the first spring unit 1 with respect to the same load is smaller than that of the second spring unit 10, the amount of elastic deformation of the second spring unit 10 when the user lies on the upper side as described above. It undergoes smaller elastic deformation compared to . The load applied to the first spring unit 1 is applied to the synthetic resin net 12 through the protective material 11, and is dispersed by the synthetic resin net 12 and applied to the second spring unit 10. The second spring unit 10 gradually undergoes elastic deformation without partial depression. That is, in this case, since the amount of elastic deformation of the first spring unit 1 closest to the user is small, the second spring unit 10 gradually deforms elastically while firmly supporting the user. In this way, when the user lies on the upper side, the second spring unit 10 that is closer to the user supports the user with a large amount of elastic deformation, but when the user lies on the lower side, the second spring unit 10 supports the user with a large amount of elastic deformation. Since the first spring unit 1, which is closer to the bottom side, supports the user with a smaller amount of elastic deformation, the mattress device becomes harder when the lower side is used than when the upper side is used. The hardness when using is different. or,
By interposing the synthetic resin net 12 between the first spring unit 1 and the second spring unit 10, the load can be dispersed, thereby preventing partial collapse and improving the overall stability of the mattress device. It can be made harder, improving sleeping posture and comfort.

It should be noted that the present invention is not limited to the above-mentioned embodiment, but may be a combination of two spring units having different amounts of elastic deformation with respect to the same load.

In the embodiment shown in FIG. 7, the first spring unit 1 is constructed by connecting a large number of first springs 20a, 20b, . . . shown in FIG. The first spring 2 is made of a hard steel wire having a wire diameter smaller than that of the hard steel wire forming the first springs 20a, 20b...
The second spring unit 10 is constructed by connecting a large number of second springs 20a', 20b'... formed in the same shape as 0a, 20b... into a rectangular plate shape with a helical wire 23'... There is.

The first spring 20a connects the adjacent spiral portions 21a, 21b... with upper and lower connecting rods 22a, 22b.
Each spiral portion 21a, 21b is connected by...
The intertwining between them is released, and the connecting rods 22a, 22b, . . . are characterized in that they are formed in a Z-shape. and each first spring 20a,
Adjacent ends of the connecting rod located on the upper side and the connecting rod located on the lower side are connected by helical wires 23, respectively, so that a large number of first springs 20a, 20b... are formed into a rectangular plate. A first spring unit 1 is constructed by connecting them in a shape. Furthermore, there are frame lines 24,
24 are connected by clips (not shown) to connecting rods 22a, 22b, . . . located around the first springs 20a, 20b, .

The second springs 20a', 20b'... constituting the second spring unit 10 are also formed in the same way as the first springs 20a', 20b'...
a second spring 20a' connected in a rectangular plate shape;
Frame lines 24', 24' are provided at the periphery of the upper and lower surfaces of 20b'.

In the embodiment shown in FIG. 8, the first spring unit 1 is constructed by connecting a large number of first springs 20a, 20b, . . . shown in FIG. A large number of second springs 2a', 2b'... shown in Figure 1
are connected in a rectangular plate shape.

In this case, the first springs 20a, 20b, . . . are formed of a hard steel wire having a wire diameter larger than that of the hard steel wire forming the second springs 2a', 2b', . Conversely, the first spring 20
The second springs 2a',
2b'... may be formed as desired.

In the embodiment of FIG. 9, as shown in FIG. 13, the first spring unit 1 is constructed by connecting first springs 25 made of coil springs into a rectangular plate shape with helical wires 26. , clip the frame lines 27, 27 to the periphery of the upper and lower surfaces 28...
It is connected by Further, the second spring unit 10 is constructed by connecting the second springs 2a', 2a', . . . shown in FIG. 1 in a rectangular plate shape. In this case, the first springs 25... are formed of a hard steel wire having a wire diameter larger than that of the hard steel wire forming the second springs 2a', 2b'.... Although not shown, the second springs 2a', 2b'... are made of hard steel wires having a wire diameter larger than that of the hard steel wire forming the first springs 25... Also good. In the embodiment shown in FIG.
The spring includes a first spring 25 made of a coil spring shown in FIG. 13, and a second spring 25.
The second spring constituting the spring unit 10 includes the second spring 2 shown in FIG.
0a', 20b'... are used. In this case the second
The first spring 20a', 20b'... is made of hard steel wire having a wire diameter larger than that of the hard steel wire forming the
The spring 25... is formed. Further, the second springs 20a', 20b', . . . may be formed of a hard steel wire having a wire diameter larger than that of the hard steel wire forming the first springs 25, .

In the embodiment shown in FIG. 11, the first spring 25 made of a coil spring shown in FIG.
. . . are connected in a rectangular plate shape by helical wires 26 . A second spring 25' having the same shape as the first spring 25 is made of a hard steel wire having a wire diameter smaller than that of the hard steel wire forming the first spring 25, and is made of a helical wire 26'. . . . to form a rectangular plate shape to form a second spring unit 10.
It consists of And frame line 2 on the periphery of the upper and lower surfaces
7' and 27' are connected by clips 28'...
The synthetic resin network 12 interposed between the first and second spring units 1 and 10 is shown as integrally molded in FIG. 5, but as shown in FIG. A mesh body 12 may also be used.

As described above, the present invention configures a first spring unit by connecting a large number of first springs in a rectangular plate shape, and has a wire diameter different from that of the hard steel wire forming the first spring. The second spring unit is constructed by connecting a large number of second springs made of hard steel wire into a rectangular plate shape, and the first spring unit and the second spring unit have different amounts of elastic deformation under the same load. The second spring unit is formed as shown in FIG. did. Therefore, the hardness of the pinerest device differs depending on whether the upper side or the lower side is used. Therefore, the pine stress device can be used with the optimum firmness according to the user's preference and physical condition, which is very convenient. Further, the synthetic resin network has the advantage that the entire pinerest device can be made hard.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially sectional side view of the pinerest device, Fig. 2 is a perspective view showing a part of the spring, and Fig. 3 is an example of the use of the spring shown in Fig. 2. FIG. 4 is a schematic side view showing a part of the spring unit; FIG. 5 is a plan view showing a synthetic resin network; and FIG.
The figure is a plan view showing another example of the synthetic resin network body;
7 to 11 are partially sectional side views showing another embodiment of the present invention, and FIGS. 12 and 13 are perspective views showing a part of a spring unit of another embodiment. 1...First spring unit, 2a, 2b
...First spring, 10...Second spring unit, 2a', 2b'...Second spring,
11... Protective material, 12... Synthetic resin network, 20
a...first spring, 20a'...second spring, 25...first spring, 25'...
Second spring.

Claims (1)

[Claims] 1. A first spring unit is constructed by connecting a large number of first springs in a rectangular plate shape, and
A large number of second springs formed of hard steel wires having a wire diameter different from that of the hard steel wire forming the spring are connected in a rectangular plate shape to constitute a second spring unit. A spring unit and a second spring unit are formed to have different amounts of elastic deformation under the same load, and the second spring unit is polymerized onto the first spring unit via a synthetic resin network, and the second spring unit is polymerized onto the first spring unit through a synthetic resin network. A pine tress device characterized by having an elastic material placed on the lower surface and covered with an exterior material.