Patent ID: 7497242
Filing Date: 2009-03-03
Classification: E06B

Abstract:
1. A window curtain pulling device, comprising: a guide rod, disposed at an end of a guide module and having a through hole of an internal thread hole disposed on both ends of the interior of said guide rod, a polygonal rod section disposed at the top of said guide rod, and a projecting circular member with a different diameter disposed at an end of said guide rod, and a polygonal internal hole includes a circular hole therein; a pulling string wheel module, sheathed outside a protruded wall of said guide module, and the center of said pulling string wheel module includes a through hole, and said through hole includes a trapezoid latch protruded from an internal edge of said through hole, and a sunken surface extended from one side of said through hole, and a circular concave edge disposed around the external periphery of said through hole; a rotary member module, coupled to said guide rod of said guide module and disposed adjacent to said pulling string wheel module; a fixed casing, passing through said guide module and said rotary member module and having a chamber disposed at the center of said fixed casing, a sheath hole disposed at an end, a protruded cover wall having a plurality of sunken surfaces disposed therein, and a penetrating hole disposed around the periphery; a connecting component, coupled to the exterior of said pulling string wheel module and having a containing space therein, and said containing space includes a sectional arc groove disposed at the bottom of said containing space; wherein said rotary member module comprises a rotary member, a coupling member, and a pushing member, and said rotary member includes a protruded rod corresponding to a through hole, and said protruded rod includes a periphery having a plane at an end, and a slant at the other end corresponding to a guide groove, and said protruded rod includes a protruded connecting member having an internal section with a containing space and two flange surfaces of a protrusion having an arc slot and two latches at both ends of the back side and a space between, and an arc embedding member is disposed between said latch and said protrusions, and said coupling member includes a sheathing rod of a through hole corresponding to said protruded rod of said rotary member, and said sheathing rod includes said guide groove disposed around the periphery of said protruded rod and corresponding to a plane at an end, and the other end includes a guide groove having a slant of a propping end, and said sheathing rod includes a protruded connecting member having a containing space in its interior, and said protruded connecting member includes two protrusions having a space between said two protrusions, and its back corresponding to a plane of said guide groove, and said pushing member includes a rod section of said protruded through hole having a resilient element passing through its interior, and said rod section includes a corresponding latching member disposed around the central circular periphery, and an end of the external edge includes a plane at an end corresponding to said rotary member and said guide groove of said coupling member, and another end includes a conical body of a slant having a propping protruded end.