FIELD: transportation.
SUBSTANCE: proposed device has a flexible pipe in unfolded form. The pipe has accordion folds and one of its ends is rigidly joined to a stopper, which has apparatus for letting in gas, used to inflate the structure. The other end of the pipe is closed. The device for controlling unfolding of the pipe is inside the pipe and consists of a set of flexible plates. The plates are rigidly joined together and are arranged radially in form of lobes around the first support, and coaxially arranged about the folded pipe. The set of flexible plates is mounted with provision for displacement along the support. The control device consists of apparatus for returning the above mentioned flexible thin plates in the direction of the stopper, providing pressure on the folded part of the pipe. Each lobe presses onto the pleats of the folded pipe, stacked on each other.
EFFECT: better control of unfolding.
11 cl, 15 dwg
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