公开(公告)号：US3704859A

公开(公告)日：1972-12-05

申请号：US3704859D

申请日：1971-03-08

Applicant: PRONAL SA

Inventor： JOSIEN DANIEL

IPC: B66F3/40 ,  B29D22/02 ,  B66F3/35 ,  F15B15/10 ,  B66F3/24

CPC classification number: B29D22/02 ,  B29K2021/00 ,  B66F3/35 ,  F15B15/10

Abstract: A method for manufacturing an inflatable cushion of utility as a jack. The cushion is made from a piece of fabric coated with elastomer and comprising a polygonal bottom wall and a top wall which includes triangular portions between which are circumferentially interposed gores. The top wall is formed by folding over the triangular portions onto the bottom wall and securing the gores to the triangular portions, as by an adhesive or vulcanization. If desired, a reinforcing and retaining disc can be secured to the outer and/or inner face of the upper wall. A center inflating valve may be secured to the center of the upper wall.

Abstract translation: 一种用于制造用作千斤顶的充气垫的方法。 衬垫由一层涂有弹性体的织物制成，并包括一个多边形底壁和一个顶壁，顶壁包括三角形部分，它们之间沿圆周方向插入。 通过将三角形部分折叠到底壁上并通过粘合剂或硫化将山钉固定到三角形部分而形成顶壁。 如果需要，可以将加强和固定盘固定到上壁的外表面和/或内表面。 中心充气阀可以固定到上壁的中心。