JPH0118073Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a cushion body used for chairs, etc., and is a plastic sheet body having a large number of air blocks on one side, which is also used for packaging materials. As if they fit together 2
This cushion body is made of two plastic sheet bodies that are joined face-to-face to form each unit, and the surface of a core body formed by stacking these units is covered with a bag-like cover.

In other words, the cushion body has a nearly constant thickness, and even when sitting or leaning back, it maintains a soft and stable shape without deforming significantly, offering excellent cushioning properties, making it comfortable to use, and easy to use. It is extremely easy to construct and manufacture, and is provided so that it can be suitably implemented.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of a chair in which a cushion body C is placed above a seat 4 of the chair having supporting legs 3.

The cushion body C is constructed by stacking a large number of air block sheets A and loading them all into a bag-like cover B. Each air block sheet A is
On one side of a soft sheet 1 made of plastic or the like, a round air-filled air block 2 is placed as shown in FIGS. 4 and 5, or a rectangular air-filled air block 2 is provided as shown in FIG. 2 are formed by raising a large number of them at intervals, and the one of the present invention is formed on a sheet facing oppositely to the gap space between adjacent air blocks on the same sheet. The air blocks are formed so that they fit together exactly, so that when the sheets are placed facing each other, the respective air blocks fit into each other. Therefore, as shown in FIGS. As shown in the figure, a large number of air block sheets A, for example, four sheets, are stacked one on top of the other so that the air blocks 2 of each sheet match vertically, and the whole is loaded inside a bag-like cover B and assembled. Attach and configure.

The bag-like cover B can also be constructed by loading a urethane foam 5 inside it or inside the cover, as shown in FIG.

Therefore, since the air blocks 2 of each sheet are fitted vertically, they have a substantially constant thickness, and since the air blocks 2 are in a fitted state, they will not shift even if a considerable amount of gravity or stress is applied. In addition, each air block generates a large resistance force due to the air contained therein, and the outer skin of each air block also acts as a fine partition wall and a strong reinforcing wall, so it can withstand extremely large stresses. However, most of the conventional cushion bodies that contain air or other fluids do not have internal partition walls, so the air in the pressed area is transferred to the unpressed area. However, in the present invention, as shown in Fig. 1, when sitting on the seat 4 or leaning against the backrest, the air inside the air block 2 flows onto the seat surface. The cushion does not flow to the side, and due to the collision of each air block 2, a moderately good cushion is obtained, and the cushion is stable and soft without being greatly deformed as a whole.

In this way, the present invention forms a single air block sheet by raising a large number of air blocks filled with air on one side of a soft sheet such as plastic at a required interval, and then forming two sheets facing each other. A core body is formed by stacking a large number of air block sheets such that each of the air blocks of the sheets fit vertically, and the core body is loaded inside a bag-like cover. In addition to being lightweight, the cushion body has a nearly constant thickness, and even when sitting or leaning back, it maintains a soft and stable shape without deforming significantly, offering excellent cushioning properties and making it comfortable to use. , it has a simple structure, is extremely easy to manufacture, and can be suitably implemented.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the chair, Fig. 2 is a schematic sectional view of the cushion body, Fig. 3 is an enlarged view of a part of Fig. 2, and Fig. 4 is an air block. 5 is an enlarged view of a part of FIG. 4; FIG. 6 is a sectional view taken along the line - in FIG. 5; FIG. 7 is a schematic sectional view of a cushion body according to another embodiment; FIG. 8 is a plan view of another embodiment of the air block sheet, and FIG. 9 is a sectional view taken along the line -- in FIG. 1... Soft sheet, 2... Air block, A...
...Air block sheet, B...Bag-shaped cover, C...
...Cushion type.

Claims (1)

[Scope of utility model registration request] A large number of air blocks 2 filled with air are raised at required intervals on one side of a soft sheet 1 made of plastic or the like to form one air block sheet A, and two air block sheets A are placed facing each other. In particular, the convex portion and the concave portion formed by the air block 2 formed on the sheet are joined together so as to fit into each other to constitute a unit body, and further, the unit body 2 A cushion body used for chairs, etc., which is made of a core made of a combination of individual pieces and placed inside a bag-shaped cover.