FIELD: transportation.
SUBSTANCE: barrier contains an anchor, which has an auxiliary drive mechanism and barrier rail with the ability to rotate in a vertical plane. The auxiliary drive mechanism is made in the form of two coaxial coils arranged around the support post, between which a compression spring is installed. The upper bushing is movable and is connected to the barrier bar via a connecting element transferring the accumulated energy of the compression spring.
EFFECT: improved operation reliability.
3 cl, 1 dwg
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RU2545202C2 |
