Net control mechanism for a badminton, tennis or volleyball hall has a an electric motor driven mechanism that is controlled by a coin-activation mechanism to raise a net to permit playing for a defined time period

摘要

Net control mechanism for a badminton, tennis or volleyball hall has a coin-activation mechanism, fastening pillars for the net, sensors for determining the position of the net, an electric motor for raising and lowering the net, a net, rollers and connecting electric cable. The coin activation mechanism is used to raise the net into a playing position for a defined period, after which it is lowered again into a position unsuitable for play.