Patent ID: 9080647
Filing Date: 2015-07-14
Classification: E05F,E05Y,F16H,H02G

Abstract:
1. A pulley assembly for combining of a wire, comprising: a groove member having a first guide groove helically threaded in an outer circumferential surface thereof and having a truncated cone shape; and a cylindrical guide pulley selectively combined with a bottom surface of the groove member and having a second guide groove formed on an outer circumferential surface thereof, wherein the wire is configured to move to the second guide groove of the guide pulley along the first guide groove of the groove member when the groove member combined with the cylindrical guide pulley rotates in a direction, wherein a combining protrusion is formed on the bottom surface of the groove member and a combining hole is formed in a lateral side of the guide pulley, wherein the combining protrusion of the groove member is selectively connected to with the combining hole of the guide pulley.