| 摘要 |
PURPOSE:To enable to expand air bags in desired order by a method wherein respective branch pipes communicating to respective air bags are branched at the different angles respectively to the suction piping at the inlet side. CONSTITUTION:Air flowing from an air pressure source 3 through a suction pipe 6, the trifurcated pipe 8 and the branch pipes 9a, 9b and 9c is charged independently to respective air bags 1a, 1b and 1c through check valves 7a, 7b and 7c respectively. The branch pipe 9a is arranged on the axis of the suction pipe 6, the branch pipe 9b is arranged incling to said axis at an angle of d1 and the branch pipe 9c is arranged incling to said axis at an angle of d2. Accordingly, the flow rate within the branch pipe 9a making a straight line with the suction pipe 6 is the largest amount of all the pipes and those within the branch pipes 9b and 9c are smaller in the order of from the pipe 9b to the pipe 9c, resulting in establishing the order of expansion of the air bags being 1a, 1b and 1c. |
