JPS6143462U

JPS6143462U - air expander

Info

Publication number: JPS6143462U
Application number: JP11635185U
Authority: JP
Inventors: シドニー・ハーマン・マギド
Original assignee: シドニ−・ハ−マン・マギド
Priority date: 1985-07-29
Filing date: 1985-07-29
Publication date: 1986-03-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

Claims

[Claims for Utility Model Registration] {1} An air expandable body having at least one air chamber, the air chamber being provided with at least one air inlet, and a side airtightly surrounding the air chamber. A reinforcing joint having a shape such as a band is formed on at least a part of the edge, and this reinforcing joint maintains a flat and stable shape without contracting or stretching, regardless of the expansion or contraction of the air inflatable body. An air expandable body characterized by being configured so that its length always remains unchanged even when air is removed from an air chamber. (2) The air-expanding body is constructed by joining two non-breathable thermoplastic plastic sheets through their overlapping side edges, and a portion of the overlapping side edges are joined into a band shape by heat sealing means. The air expandable body according to claim 1, wherein the air expandable body has a reinforced joint portion formed therein. (3) The air expandable body according to claims 1 and 2, wherein each of the plurality of independent air chambers is provided with an air blowing valve. (4) The air expandable body according to claim 1, which is a registered utility model and is formed by connecting a plurality of units each having an air chamber through the outer edge of each unit. (5) The air expandable body according to claim 1, wherein a unit having an air chamber is connected to another unit via an outer edge, and each unit is provided with an air blowing valve. (6) The air expandable body according to claims 1 to 5, wherein the reinforced joint portion reinforced by heat sealing means acts as a joint edge. (7) The air inflatable body according to claims 1 to 5, which is detachably connected to other air inflatable bodies and other structures. (8) The air expandable body having at least one air chamber is annular, and the air chamber is provided with an air inlet, which airtightly surrounds the air chamber and extends in the direction of the central axis of the annular air expandable body. Alternatively, the air expandable body according to claim 1, wherein a reinforcing joint having a shape such as a band is formed on at least a part of the side edges arranged in concentric circles. (9) The air inflatable body according to claim 8, which is a utility model and is detachably connected to other air inflatable bodies and other structures. αα Utility model registration claim No. 1 which is a reinforced joint in which all side edges surrounding the air chamber in an airtight state are reinforced. The air expandable body according to items 5 to 8, and 9.