JP3016530U - Mattress spring - Google Patents

Abstract

(57) [Abstract] [Purpose] Lightweight, no squeaking noises, a constant balance when a load is applied, no twisting, and height variations can be freely adjusted, and disposal is easy. Get a mattress. [Structure] A synthetic resin in which a plurality of annular rib members having an inverted U-shaped cross section, having flexibility, and having or not having biodegradability are continuously formed by a plurality of longitudinally-spaced members annularly arranged. A cylindrical spring made of synthetic resin is sandwiched between porous flat bodies made of synthetic resin having flexibility, biodegradability or not. Further, elasticity is changed by changing the thickness and number of the annular rib material of the tubular spring, and the tubular spring and the porous flat body are integrally molded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mattress spring used for bedding such as a bed.

[0002]

[Prior art]

 Mattresses used for bedding such as beds have a large number of coil springs wound in a spiral shape in parallel with each other in appropriate width and length, and those adjacent to each other at their upper and lower edges are fixed to each other by locking members and arranged in parallel. The outer peripheral edge of the coil spring is surrounded by wires, etc. at the upper and lower parts.

For this reason, the weight is large, and it requires a great deal of labor for handling during transportation and sun-drying. In addition, since the metal springs are fixed to each other, a squeaking noise may occur during use, and further, rust may occur. The problem of the occurrence of

As another example, there is also known one in which a coil spring is enclosed in an appropriate number of continuous bag bodies in the width and length directions. Since the spring inside each bag shrinks or expands independently, the spring of the part where the load is applied contracts very little and the balance with other parts is not maintained, or the spring may be twisted. Was done. Further, in the case of using the above metal spring, it is necessary to ask a specialist to dispose of the waste when disposing of it as waste, which is expensive.

[0005]

[Problems to be solved by the device]

 In view of the above points, the present invention is lightweight, does not produce a squeaking noise, has a constant balance when a load is applied, does not twist, and can be freely varied in height, and waste disposal is easy. The purpose is to obtain a mattress that can be used for.

[0006]

[Means for Solving the Problems]

 A synthetic resin made by connecting a plurality of annular rib members, which have an inverted U-shaped cross section, are flexible, and have biodegradability The cylindrical spring is sandwiched by a porous flat body made of synthetic resin having flexibility, biodegradability or not. Further, the elasticity is changed by changing the thickness and number of the annular rib material of the tubular spring, and the tubular spring and the porous flat body are integrally formed.

[0007]

[Action]

 When the mattress spring is loaded, the perforated planar body distributes the load around the loaded portion. Then, the cylindrical springs integrated with the porous flat body support the load at each part. The tubular spring is a stack of annular rib members each having a U-shaped cross section, and when the annular rib members receive a load, they act to narrow the opening and support the load. Since the porous flat body and cylindrical spring are molded products of synthetic resin, the applicable load can be changed by appropriately changing the thickness of the annular rib member at the time of molding, and abnormal noise is generated. I don't see. The biodegradable synthetic resin at the time of disposal is decomposed by burying it in the soil.

[0008]

【Example】

 An embodiment of the mattress spring 1 according to the present invention will be described below with reference to the drawings.

The mattress spring 1 of the present invention comprises a cylindrical spring 2 and porous flat bodies 3 and 3 integrally provided at both ends thereof.

The tubular spring 2 is composed of a plurality of annular rib members 4 made of an annular body having an inverted U-shaped cross section, and a vertical spacing member 5 having a V-shaped cross section so as to form an appropriate spacing vertically. They are stacked, and a small window 6 is formed between the upper and lower annular rib members 4 and 4 and between the left and right vertical spacing members 5 and 5. The upper and lower ends 7 and 8 of the cylindrical spring 2 are open. The cylindrical spring 2 has appropriate elasticity and flexibility, is biodegradable, and is made of a synthetic resin that does not have biodegradability. One type of thermoplastic resin is an aliphatic polyester. For example, there is a straight-chain polyester consisting of 3-hydroquinbutyric acid and 3-hydroquinvaleric acid, which is decomposed by microorganisms into carbon gas and water.

The porous flat body 3 is integrally provided on the ends 7 and 8 of the cylindrical spring 2. The porous flat body 3 is a sheet-shaped or thin-plate-shaped flexible body. In the illustrated example, the vertical weft synthetic resin linear bodies 9 and 10 arranged at appropriate intervals are welded at their intersections 11. I will do it. In this embodiment, the porous flat body 3 is melt-bonded to the upper and lower ends 7 and 8 of the tubular spring 2. It is also possible to previously form the vertical parallels and integrally form the cylindrical spring 2 and the porous flat body 3.

The cylindrical spring 2 and the porous flat body 3 can be integrally molded as described above, but the porous flat body 3 is formed only at one end of the cylindrical spring 2 which is half the height when in use. The cylindrical spring 2 provided and the porous flat body 3 are integrally formed, and the open end of the cylindrical spring 2 on which the porous flat body 3 is not provided is brought into contact with each other at the time of use, and the portion is appropriately formed. It may be fixed or welded by a locking member or the like.

A mattress 14 is formed by appropriately stacking an elastic layer 12 such as a web, a heat insulating material and a breathable sheet on the upper and lower surfaces of the mattress spring 1 and covering them with a side material 13.

In the mattress spring 1 of the present invention, when a load is applied during use, the perforated plane member 3 in the portion where the load is applied is pushed down, but due to its flexibility, the pushing-down force is applied to the perforated plane member 3 in the surrounding portion. And push down force to disperse. Then, the cylindrical spring 2 integrated with the multi-hole flat body 3 in each part is pushed down. When the upper end 7 of the cylindrical spring 2 receives a pushing-down force, the uppermost annular rib member 4 transmits the force to the lower-order annular rib member 4 via the vertical spacing member 5.

At the time of discarding the mattress, the cylindrical spring and the porous flat body having biodegradability can be decomposed in the soil by burying them in the soil.

The annular rib member 4 has an inverted U-shape in cross section, and when a force is applied from above and below, the annular rib member 4 receives the force by narrowing the interval between its open edges. This sequentially receives the pressing force applied to the mattress from the upper annular rib member to the lower rib member. The elasticity of the tubular spring 2 can be appropriately changed depending on the number of the annular rib members 4, the thickness of the annular rib members 4, and the like.

[0017]

[Effect of device]

 The mattress spring of the present invention has the following effects.

Since the cylindrical spring and the porous flat body integrated with the cylindrical spring are made of synthetic resin, they are lightweight and easy to handle, and if formed into a molded product, the product precision does not vary and uniform elastic deformation against external force is achieved. You can If a biodegradable resin is used as the synthetic resin, it can be easily treated by burying it in the soil.

Since the tubular spring is composed of an annular rib member having a U-shaped cross section, its compression resistance can be changed by changing the thickness and the number of the annular rib members.

Even if weight is applied to a specific part of the mattress, the weight is dispersed by the porous flat body, and the load can be supported in a well-balanced manner.

Because of the structure in which the tubular annular rib members are stacked below the vertical spacing member, it is possible to increase the strength against torsion and the strength in the vertical direction. The height can be changed freely by changing the number of stacks.

[Brief description of drawings]

FIG. 1 is a perspective view of a mattress spring according to the present invention.

FIG. 2 is a partially cut-out view of a mattress spring according to the present invention, in which A is a plan view and B is a side view.

FIG. 3 shows a tubular spring, where A is a partial front view and B is a longitudinal sectional view.

FIG. 4 is a partial cross-sectional view of a tubular spring.

[Explanation of symbols]

 1 Spring for Mattress 2 Cylindrical Spring 3 Perforated Flat Body 4 Annular Rib Member 5 Vertical Spacing Member 6 Small Window 7 Upper End of Cylindrical Spring 8 Lower End of Cylindrical Spring 9, 10 Linear Body 11 Welding Part 12 Ammunition Body 13 Side Ground 14 mattress

Claims (4)

[Scope of utility model registration request] 1. A synthetic resin having a biodegradable property, which is formed by connecting a plurality of flexible annular rib members each having an inverted U-shaped cross section with a plurality of longitudinally-spaced members arranged in an annular shape and having no biodegradability. A mattress spring in which a cylindrical spring made of synthetic resin is sandwiched by a porous flat body made of synthetic resin having flexibility, biodegradability or not. 2. The mattress spring according to claim 1, wherein elasticity is changed by changing the thickness of the annular rib material of the tubular spring. 3. The mattress spring according to claim 1, wherein the elasticity is changed by changing the number of annular rib members of the tubular spring. 4. The spring for malles according to claim 1, wherein the cylindrical spring and the porous flat body are integrally formed.