JP3704646B2 - Cushion material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cushioning material used for cushioning parts such as bedding, cushions, sofas and chairs.
[0002]
[Prior art]
As a cushioning material used for cushioning parts such as bedding, cushions, sofas, chairs, etc., there is a material that was devised and filed by the applicant of the present application (Japanese Utility Model Publication No. 60-1659). This is as follows. In other words, a sheet-shaped body made of a hard or semi-rigid material is formed with a large number of protrusions having a semi-cylindrical cross section in the longitudinal direction and in the lateral direction, and a sheet having a corrugated cross section as a whole is formed. A wart-shaped small protrusion is provided, and a plurality of wart-shaped small protrusions are arranged on the same straight line in a direction perpendicular to the longitudinal direction of the protrusion, and are provided on the protruding surfaces adjacent to each other side by side. The cushion material is characterized in that a rib is formed between the wart-shaped small protrusions at opposite positions to suppress air permeability and increase rigidity against bending moment. That is, the rib for increasing the rigidity against the bending moment is provided in a direction perpendicular to the protruding longitudinal direction.
[0003]
[Problems to be solved by the invention]
In the conventional cushion material, the rib for increasing the rigidity against the bending moment is provided in the direction perpendicular to the protruding longitudinal direction. For this reason, although the rigidity with respect to the bending moment centering on the protruding longitudinal direction is large, the rib has no effect on the bending moment centering on the direction perpendicular to the longitudinal direction. Accordingly, the rigidity is small in the longitudinal direction.
[0004]
The problem to be solved by the present invention is to provide a cushion material having rigidity not only in the longitudinal direction but also in a direction perpendicular thereto.
[0005]
[Means for Solving the Problems]
The cushioning material according to claim 1 is a plurality of rows in which a plurality of protrusions 1 having a plurality of wart-like small protrusions 6 on the surface and having a square cross section in a square shape are arranged in a row while providing grooves 2 between each other. In the sheet molded body A made of a hard or semi-rigid material that is arranged in parallel in the lateral direction while providing the valleys 3 between each other, each protrusion 1 adjacent to each other in each valley 3 The ribs 5 for connecting the two are inclined with respect to both the longitudinal direction and the lateral direction.
[0006]
The cushion material according to claim 2 is the one according to claim 1, characterized in that every other rib 5 in the same row is mixed with every other one in which the direction of inclination is reversed. is there.
[0007]
A cushioning material according to a third aspect is characterized in that, in the one according to the first or second aspect, each rib 5 is formed so as to be inclined by 45 ° with respect to both the longitudinal direction and the lateral direction.
[0008]
Each rib 5 is desirably inclined by 45 ° and 45 ° in the opposite direction, but it is not always necessary to have such an angle. An appropriate inclination angle can be set in consideration of the type, size, required strength, and the like of the object to be applied.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line XX in FIG. 1, and FIG. 3 is a sectional view taken along line YY in FIG. In FIG. 1, A shows a sheet molded body integrally molded with a hard or semi-rigid material such as plastic foam plastic. In the sheet molded body A, some of the ridges 1 having a square cross section and a rectangular shape are arranged in the longitudinal direction while the grooves 2 are provided between them. It is a rectangular one arranged in parallel in the direction. However, the arrangement of the ridges 1 adjacent to each other is arranged in half. And it becomes a sheet | seat of a cross-sectional waveform as a whole.
[0010]
In each groove 2, the protrusions 1 are connected by a connecting portion 4 having a semicircular cross section. Moreover, although the rib 5 which connects between each adjacent protrusion 1 in each trough part 3 is provided, the each rib 5 is set to two for each protrusion 1 each. Each rib 5 is alternately provided with an inclination of 45 ° and an inclination of 45 ° in the opposite direction. In addition, the ribs 5 in the adjacent rows are symmetrical in direction.
[0011]
A number of wart-shaped small protrusions 6 are provided on the surface of each protrusion 1. The wart-shaped small protrusion 6 is for giving a massage effect to a user's muscle. In addition, as FIG. 3 which is YY sectional drawing of FIG. 1 shows, each rib 5 shall be a thing of the height which does not reach the position of the wart-shaped small protrusion 6. FIG.
[0012]
Since the ribs 5 are alternately arranged 45 ° inclined and 45 ° inclined in the opposite direction, the ribs 5 are not only transverse to the bending moment about the longitudinal direction of each row of protrusions 1 but also laterally. It has moderate rigidity with respect to a bending moment about the direction.
[0013]
A core material having the same shape as the sheet molded body A may be attached to the back surface of the sheet molded body A. The core material is usually made of a synthetic resin foam which is rich in flexibility and flexibility. Another sheet molded body A may be turned over and pasted under the core material after the core material is pasted. At this time, one or both of the connecting portion 4 and the rib 5 may not be provided in the other sheet molded body A. Turn it over if necessary. When used for bedding or the like, an appropriate number of sheet molded bodies A may be connected as shown in FIG.
[0014]
【The invention's effect】
In the cushion material which concerns on this invention, the rib 5 which connects each adjacent protrusion 1 in each trough part 3 is each inclined and formed with respect to both a longitudinal direction and a horizontal direction. For this reason, it has moderate rigidity not only with respect to the bending moment about the longitudinal direction of each row of protrusions 1 but also with respect to the bending moment about the transverse direction. Moreover, since many wart-shaped small protrusions 6 are provided on the surface of each protrusion 1, it is possible to give a massage effect to the user's muscles.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
2 is a cross-sectional view taken along line XX in FIG.
3 is a cross-sectional view taken along line YY in FIG.
4 is a plan view showing an example of use of the one of FIG. 1. FIG.
[Explanation of symbols]
1 Projection 2 Groove 3 Valley 4 Connection 5 Rib 6 Warts

Claims (3)

A plurality of protrusions (1) having a plurality of wart-shaped small protrusions (6) on the surface and a square shape with a semi-cylindrical cross section are arranged in one row while providing grooves (2) between them. In the sheet molded body A made of a hard or semi-rigid material which is arranged in parallel in the lateral direction while providing a valley (3) in the middle, the protrusions adjacent to each other in each valley (3) A cushioning material characterized in that the rib (5) connecting (1) is formed to be inclined with respect to both the longitudinal direction and the lateral direction.   Cushion material according to claim 1, characterized in that every other rib (5) in the same row is made up of every other inversion of the direction of inclination.   The cushion material according to claim 1 or 2, wherein each rib (5) is formed to be inclined by 45 ° with respect to both the longitudinal direction and the lateral direction.

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