JPS6194019U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a plan view of an embodiment of the present invention, Figure 2a
, b, c, d, and e are explanatory diagrams of the same usage conditions as above, FIG. 3 is a schematic explanatory diagram showing the air supply and discharge means of the same as the above, and FIG. 4 a, b, and c are the functions of other embodiments of the same as the above. Explanatory drawings, FIGS. 5a and 5b are action explanatory views of the conventional example, where 1 is the center seat, 2 is the upper seat, 3 is the first air chamber, 3a is the first air chamber portion, and 4 is the second air chamber. ,
4a is a second air chamber portion, 5 is a lower air chamber, 6 is an air supply/discharge means, 7 is a lower sheet, and 18 is an air jet hole.

Claims (1)

[Claims for Utility Model Registration] (1) A first air chamber and a second air chamber are configured as separate systems between the center seat and the upper seat, and the first air chamber extends from the first air chamber. The chamber portions and the second air chamber portions extending from the second air chamber are arranged alternately to form one system of lower air chambers between the center seat and the lower seat, and the first air chamber, An air mat in which a second air chamber and a lower air chamber are each independently connected to an air supply/discharge means, and the lower air chamber is provided with a plurality of air ejection holes for ejecting air upward. (2) Utility model registration claim 1, which comprises an air supply and discharge control means that alternately expands and contracts the first air chamber and the second air chamber and constantly expands the lower air chamber. Air mat.