초록 ▼

A collapsible vertical wind mill is disclosed, which comprises four main wings arranged in a rhombic form having a pair of opposed corners fitted on a shaft and auxiliary wings each provided on each of the main wings. The upper one of the pair corners on the shaft is fitted via a bearing capable of

A collapsible vertical wind mill is disclosed, which comprises four main wings arranged in a rhombic form having a pair of opposed corners fitted on a shaft and auxiliary wings each provided on each of the main wings. The upper one of the pair corners on the shaft is fitted via a bearing capable of movement along the shaft. The other pair of opposed corners of the rhombic structure each have a hinged structure capable of variation of the angle.

대표청구항 ▼

A collapsible vertical wind mill comprising: a vertically extending center shaft; four linear main wings, hinge means interconnecting the wings in a rhombic form capable of corner angle varition with opposed upper and lower corners penetrated by said center shaft, and with hinged outer corners betwe

A collapsible vertical wind mill comprising: a vertically extending center shaft; four linear main wings, hinge means interconnecting the wings in a rhombic form capable of corner angle varition with opposed upper and lower corners penetrated by said center shaft, and with hinged outer corners between the upper and lower corners, said lower corner of said rhomb being formed by an attachment located at a fixed position with respect to said vertical center shaft, said upper corner of said rhomb being constituted by a slidable ring slidable along said vertical center shaft; a ring stopper provided on said vertical center shaft at a lower position thereof for providing a lower limit position of said slidable ring; and auxiliary wings each provided on each of said main wings.