Patent ID: 7174908

Claim:
A multipurpose net frame, comprising: a coupling base, at a periphery of which provided with plural coupling portions; a control cord having a first end connected to the coupling base and having a free end; a positioning device having a movable member, a pulling member, at least one rolling element and an elastic member, on a periphery of the movable member provided with plural coupling portions corresponding to the plural coupling portions of the coupling base, at a center of the movable member defined with a groove, at a bottom of the groove defined with an aperture, the pulling member defined at a first end surface thereof with a through aperture, on an outer periphery of the pulling member at least defined with a through hole for reception of the rolling element, protrusions defined on the outer periphery of the pulling member, an end of the pulling member equipped with the rolling element serving to insert in the groove of the movable member and the pulling member partially protruding out of the aperture of the movable member, the elastic member disposed around the outer periphery of the pulling member in a manner that an end of the elastic member pressing against the bottom of the groove of the movable member and another end of the elastic member abutting against the protrusion of the pulling member, the through aperture of the pulling member of the positioning device provided for insertion of the control cord, and the rolling element in the pulling member used to clamp the control cord from a respective side; plural rods each having an end pivotally connected to the respective coupling portions of the coupling base; plural levers each having a first end pivotally connected to a connecting portion of the respective rods and having a second end pivotally connected to the coupling portions of the movable member of the positioning device.