Bubble pack for use in vehicles as pneumatic actuator

摘要

The bubble pack can be stretched when filled with fluid. It consists of a number of fillable bubbles arranged in the stretch direction, connected by flexible channels for exchange of fluid. Each channel (18) contains at least one reinforcing web (21) extending along it to counteract buckling when the channel is diverted. The pack may have each bubble (10,11) enclosed between two flexible bubble walls (14) connected to each other at the edges. Each two successive bubbles have a channel (13) connecting them. The channel walls are made in one with the bubble walls.