JPS60212110A - Mattress apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pinerest device equipped with a spring unit.

Generally, a pine stress device is formed by arranging a large number of compression springs in a matrix to form a spring unit, polymerizing an elastic material on at least the upper surface of the upper and lower surfaces of the spring unit, and covering this polymer with an exterior material. has been done. In such a structure, the plurality of compression springs arranged in rows and columns of the spring unit must be integrally connected in order to maintain the shape of the spring unit and obtain the desired performance.

Conventionally, helical wires have been used as means for connecting the compression springs arranged in rows and columns. In other words,
The windings at the ends of the compression springs are connected in the row or column direction by helical wires. However, according to this method, since the helical wire itself has elasticity, it is inevitable that the connection between the compression springs becomes loose. Therefore, the compression spring is easily compressed and deformed by itself due to the load applied to the spring unit, so for example, a heavy part of the user's body may fall locally into the spring unit, making it difficult to maintain the user in the correct sleeping position. The drawback was that it couldn't be done. Furthermore, compression springs connected by helical wires have almost no restrictions on their radial movement, so they have the disadvantage that they swing in the radial direction due to vibration and collide with adjacent compression springs, causing noise. Ta. Furthermore, there is a problem in that the work of connecting the springs to each other using helical wires is not only very time-consuming but also requires skill.

This invention was made based on the above circumstances.

The purpose of this is to connect the compression springs that form the spring unit in a way that makes it difficult for them to be compressed and deformed independently, and also to prevent them from swinging in the radial direction.
It is an object of the present invention to provide a pinerest device which allows the joining work to be easily performed.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. The pinerest device shown in FIG. 1 includes a spring unit 1. As shown in FIG. This spring unit 1 is formed by arranging a large number of coil springs 2 as compression springs in a matrix at predetermined intervals. Connecting plates 3 having the same size as the spring unit 1 are arranged on the upper and lower surfaces of the spring unit 1, and the plurality of coil springs 2 are integrally connected by the connecting plates 3. In other words, the connecting plate 3 is made of a synthetic resin such as polypropylene that has elasticity and a certain degree of hardness, and is made of a frame 4, bars 5 stretched in a lattice pattern on the frame 4, and four lattices. An annular portion 6 extending over the coil spring 2 and formed at intervals corresponding to the arrangement state of the coil spring 2 is integrally molded. The frame portion 4 and the annular portion 6 are formed thicker than the bar 5, and the surface of the annular portion 6 that is connected to the spring unit 1 has a winding portion 7 at the end of the coil spring 2. An annular groove 8 serving as an engaging portion is formed with a corresponding size. Each coil spring 2 is integrally coupled via the coupling plate 3 by elastically fitting the upper and lower winding portions 7 into the annular grooves 8, respectively.

Each connecting plate 3 has an elastic body 9 made of urethane foam or the like.
is polymerized through the nonwoven fabric 10, and this polymer
1. This exterior end 11 is an elastic body 9
The spring unit 1 is made up of a mirrored area 12 that covers the outer peripheral surface of the spring unit 1, and a gusset 13 that covers the outer peripheral surface of the spring unit 1, and the upper and lower ends of the gusset 13 and the peripheral portion of the mirrored area 12 are sewn together with tape edges 14. Further, one end of a fixing cloth 15 is sewn to the inner peripheral portion of the mirror cloth 12. This fixed cloth 15
The other end is attached to the clip 16 together with the peripheral part of the nonwoven fabric 1o.
It is connected to the coil spring 2 by. Therefore, the elastic body 9 is prevented from shifting on the spring unit 1 by the nonwoven fabric 11 and the fixing cloth 15, and the fixing plate 3 is prevented from coming off the coil spring 2 by the outer end 11 via the elastic body 9. is held in

According to the mattress device configured in this way, a large number of coil springs 2 of the spring unit 1 are integrally connected by the fixing plate 3.

Therefore, when a load is applied to the spring unit 1, each coil spring 2 is compressed via the coupling plate 3. Therefore, each coil spring 2
are elastically deformed integrally by the connecting plate 3 and are not elastically deformed independently, so that the heavy part of the user's body does not sink into the spring unit 1 to a greater extent than other parts. In other words, the user is supported in a correct sleeping position with his or her back stretched, resulting in good sleeping comfort. In addition, the coil spring 2 has winding portions 7 at its upper and lower ends attached to the fixing plate 3.
Since it is fitted into the annular groove 8, movement in the radial direction is restricted. In other words, the distance between adjacent coil springs 2 is kept constant. Therefore, even if vibration is applied to the spring unit 1, adjacent coil springs 2 will not collide with each other and generate noise. Further, since the large number of coil springs 2 can be integrally connected by fitting the windings 7 into the annular grooves 8 of the connecting plate 3, the coil springs 2 can be connected together in one piece, compared to the conventional means using helical wires. The joining work can be done easily and quickly. In addition, in the coupling plate 3, the elastic body 9 is connected to the spring unit 1.
Prevent direct contact with. Therefore, the elastic body 9 is not rubbed against the spring unit 1 and damaged early.

FIG. 3 shows another embodiment of the present invention, in which the pinerest device is a bottom pinetress.

That is, the winding portions 7 at the lower ends of the large number of coil springs 2 are fixed to the frame body 21 by the tacker 20,
The winding portion 7 at the upper end is fitted into an annular groove 8 formed in the annular portion 6 of the fixed plate 3. That is, only the winding portions 7 at the upper ends of a large number of coil springs 2 are connected by the connecting plate 3, and such a mattress device also has the same effects as the above embodiment.

4 and 5 show yet another embodiment of the invention, in which the compression spring 22 is formed as shown in FIG. That is, the winding portions 23 at the upper and lower ends are formed in a rectangular shape.

One end of an upper spiral 24 continues to the winding portion 23 at the upper end, and one end of a lower spiral 25 continues to the winding portion 23 at the lower end. Each helix 24 , 25 has a circumferential turn of about 270 degrees and their other ends are continuous with the ends of the torsion rod 26 .

On the other hand, the annular portion 27 of the fixed plate 3 and the annular groove 28 formed therein are formed in a rectangular shape corresponding to the shape of the winding portion 23. Therefore, by fitting the winding part 23 of the compression spring 22 into the annular groove 28 of the fixing plate 3, a large number of compression springs 22 constituting the spring unit 1 can be integrally connected as in the above embodiment. Can be done. In other words, the present invention is not limited in any way to the shape of the springs forming the spring unit 1.

Further, in each of the above embodiments, the coupling plate 3 is a single piece having the same size as the spring unit 1, but the coupling plate 3 may be divided into a plurality of pieces in the row or column direction of the springs.

As described above, the present invention provides an engagement between a spring unit and an elastic body superimposed on the spring unit, in which the windings at the ends of a large number of compression springs constituting the spring unit are engaged and held. Since the connecting plate made of synthetic resin is provided, and the connecting portion is integrally molded, a large number of compression springs can be integrally connected by this connecting plate.

Therefore, it is difficult for many springs to be compressed and deformed individually, but they are deformed as one by the connecting plate, so
Only the portions of the user's body corresponding to the heavy □ portions will be significantly deformed, and the user will not be unable to be supported in the correct sleeping position. Further, since the compression springs are restricted from moving in the radial direction by the coupling plate, the vibrations applied to the spring unit do not cause adjacent springs to collide with each other and generate noise. Furthermore, the connection operation can be performed more easily and quickly than with the conventional means of connecting compression springs using helical wires. Moreover, since the coupling plate prevents the elastic body from directly contacting the spring unit, it also has the function of preventing early damage to the elastic body.

[Brief explanation of the drawing]

FIG. 1 is a partially cross-sectional side view of a pinerest device showing an embodiment of the present invention, FIG. 2 is a plan view of a connecting plate, and FIG. 3 is a side view of a pinetress device showing another embodiment of the invention. FIG. 4 is a perspective view of a compression spring showing still another embodiment of the present invention, and FIG.
FIG. 3 is a plan view of a coupling plate for coupling the compression springs shown in the figure; 1... Spring unit 2.22... Spring 3... Connection plate 7.23... Winding portion 8.23... Annular groove (engaging portion) 9... Elastic body 11...・Exterior land applicant agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] In a pinerest device, a spring unit is formed by arranging a large number of compression springs in a matrix, an elastic body is superimposed on at least the upper surface of the upper and lower surfaces of the spring unit, and this polymer is covered with an exterior material, A pine tress characterized in that a synthetic resin coupling plate is provided between the spring unit and the elastic body, and the engagement part for engaging and holding the winding part at the end of the compression spring is integrally molded. Device.