| 摘要 |
FIELD: sports.SUBSTANCE: net is provided with a third rope, which is arranged in the casing connected to the cells of the net, and this rope interacts using at least one element which is rigid in tension and compression but flexible when bending, which is located in a vertical sheathing attached to vertical sides of the net cells contiguous in vertical, with the upper rope. The right and left branches of the third rope are located under the ascendant angle relative to the horizontal in motion from the central part of the net to its right or left edge, at that in tension of the third rope at least one flexible element lifts upwards the upper rope.EFFECT: reduction of magnitude of slackening of the central part of the net, without significant effort to tension the rope, which stretches the upper edge of the net.2 dwg |
