JPS601659Y2 - cushion material - Google Patents

Description

[Detailed description of the invention] This invention relates to cushioning materials, and more specifically to bedding and
This relates to cushioning materials used for the cushioning parts of seat cushions, sofas, chairs, etc.

The cushioning material of the present invention has a sheet body made of a hard or semi-hard material with a large number of protrusions having a semicircular cross section in the longitudinal and lateral directions, and the entire sheet has a corrugated cross section. A large number of wart-like small protrusions are provided on the surface of the protrusion, and the plurality of wart-like small protrusions are arranged so that they are located on the same straight line in the direction perpendicular to the longitudinal direction of the protrusion, and are arranged side by side and adjacent to each other. Ribs are formed between the wart-like small protrusions provided on the surface of the protrusions at opposing positions to suppress air permeability and increase rigidity against bending moments.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, numeral 1 denotes a sheet body made of a hard or semi-hard material, which is integrally molded with a mold.

For example, a flexible foamed plastic material called high ethylene, softron, etc. can be used.

Protrusions 2, 2... having a semicylindrical cross section are provided on the sheet guide-shaped body 1.
... are arranged in a large number in the longitudinal and lateral directions, and the sheet as a whole has a corrugated cross section.

Numerous wart-like small projections 3゜3... on the surface of the protrusion 2.
is provided.

The wart-like small protrusions 3 are for giving a pine surge effect to the user's muscles.

Looking at the protrusions 21 and 2□ that are adjacent to each other side by side, the small protrusions 3□ on the periphery of the protrusions 21 and the small protrusions 3□ on the periphery of the protrusions 2□ are different from each other in the longitudinal direction of the protrusions. They are located on the same straight line in the direction perpendicular to the direction, and a rib 4 is formed between the small protrusions 31 and 3° (Fig. 3).
.

Small protrusions 329339349... provided on the surfaces of other protrusions 22923?24... are also located on the same straight line (line III-III), and adjacent protrusions Ribs 4, 4, . . . are formed in the spaces between the rows.

A direction perpendicular to the longitudinal direction of the above-mentioned protrusion 2 (e.g.
Since an appropriate number of rib groups are formed on the sheet-shaped body 1 in parallel with the series of rib groups formed in the direction of the - As a result, the rigidity is increased, and the seat body 1 becomes difficult to bend.

The reason for providing the ribs 4, 4, . . . is to suppress air permeability in addition to increasing rigidity against bending moments.

Troughs 5, 5... are formed in the longitudinal direction of adjacent ridges, and grooves 6, 6... are formed in the direction perpendicular to the longitudinal direction.
... are formed, and these valleys 5 and grooves 6 act as ventilation paths.

If the ribs 4 are not provided in the troughs 5, the troughs 5 and the grooves 6 will be in communication over the entire surface of the sheet molded body 1, so that the humid air caused by the sweat of the user and the outside air will be separated. The ventilation effect of replacement is performed smoothly.

However, in the present invention, the valley portion 5 is divided by the ribs 4, 4, . It is difficult for the warm air that remains inside to escape, and on the other hand, the cold air from outside is difficult to enter inside, resulting in gradual ventilation.

Therefore, it does not give the user a cold feeling in winter or the like.

Note that 7 is a connecting portion provided in the groove 6 and having a substantially semicircular cross section.

The connecting portions 7 are provided at different positions in each row of the protrusions 2, 2, . It has a rib effect that prevents.

Figure 2 is a bottom view of the sheet molded body, with protrusions 2□.

2□9 239 24... shows the state seen from the back.

4 to 6 show examples of the use of the present invention, in which a core material 8 is bonded to a sheet molded body 1 shown in a sectional view taken along the line IV--IV in FIG. 1.

The core material 8 is a synthetic resin foam having high flexibility and pliability, and for example, urethane foam can be used.

The core material 8 can be directly adhered to the sheet molded body 1 with a rubber adhesive or the like, but alternatively, a reinforcing sheet (not shown) such as kraft paper or gold mine may be inserted between the sheet molded body 1 and the core material 8. It is also possible to intervene.

FIG. 5 shows an example of use in which sheet molded bodies 1.1 are adhered to both upper and lower surfaces of the core material 8.

FIG. 6 shows another example of use, in which the sheet rectangular body 1 of the present invention is adhered to one side of the core material 8, and a sheet molded body 1' without ribs 4 is adhered to the other side.

Seat 14 and shape 1' have good ventilation because the troughs and grooves communicate over the entire surface, so if sheet molded body 1' is used in the summer, it will be cool, and if sheet molded body 1 is used in winter, it will be cool. It's warm.

[Brief explanation of the drawing]

Figure 1 is a plan view of an embodiment of the present invention, Figure 2 is a back view,
FIG. 3 is an enlarged sectional view taken along line 1--2 in FIG. 1, FIG. 4 shows one example of use of the present invention, FIG. 5 shows another example of use, and FIG. 6 shows still another example of use. 1...Sheet molded body, 2...Protrusions, 3...
・・・・・・Wart-like small projection, 4・・・・・・Rib, 5・・・
... Tanibe, 6... Groove, butt... Core material.

Claims (1)

[Scope of utility model registration request] A sheet body made of a hard or semi-hard material is provided with a large number of protrusions having a semi-cylindrical cross section in the longitudinal and lateral directions, forming a sheet with a corrugated cross section as a whole, with a large number of protrusions on the surface of each protrusion. A plurality of wart-like small protrusions are provided, arranged so that a plurality of wart-like small protrusions are located on the same straight line in a direction perpendicular to the longitudinal direction of the protrusion, and are arranged side by side with each other on the surface of adjacent protrusions. A cushioning material characterized in that ribs are formed between the wart-like small protrusions at opposing positions to suppress air permeability and increase rigidity against bending moments.