| 摘要 |
A device for building up directional force comprises an even number of tubular vessels (1) made of elastic material and adapted for communicating with a pressure fluid medium source, and a rigid rectilinear pivot (8) with flat bevels (19) which is positioned between the tubular vessels (1) so that the tubular vessels (1) are located symmetrically with respect to the geometrical axis (9) of said pivot (8). Provision is made for puncheons (10) adjoining the outside surface of the tubular vessel (1) and positioned diametrically opposite relative to the axis (9) of the pivot (8), with their inside surfaces (12) facing the surfaces (20) of the pivot (8), which adjoin the outside surfaces of the tubular vessels (1). Wedge-shaped inserts (14) are located diametrically opposite with respect to the axes (15) of the tubular vessels (1) and have surfaces (16) adjoining the outside surfaces of the tubular vessels (1) which are out of contact with the puncheon (10 ) and the pivot (8) and lateral surfaces (17, 18) adjoining the flat bevels (13) of the puncheons (10) and the flat bevels (19) of the pivot (8).
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