Patent ID: 8974334
Filing Date: 2015-03-10
Classification: B66D,E06C

Abstract:
1. A climb assist system comprising: an upper pulley assembly configured and arranged to be coupled to an upper rung of a ladder, the upper pulley assembly further configured to route an endless looped member about different sides of the ladder; a lower pulley assembly configured and arranged to be coupled to a lower rung of the ladder, the lower pulley assembly further configured to route the endless looped member about different sides of the ladder to the upper pulley assembly; a tension assembly coupled to the ladder between the upper pulley assembly and the lower pulley assembly, the tension assembly including, a housing, the drive pulley and the tension assembly received in the housing, the housing having a top end wall and an opposed bottom end wall, the top end wall having a first cable passage and the bottom end wall having a second cable passage, the endless looped member passing through the first cable passage and the second cable passage; a threaded tension adjustment rod extending through a rod receiving aperture in the housing; a tension pulley bracket, the tension pulley rotationally coupled to the tension pulley bracket, the tension pulley bracket threadably coupled to the threaded tension adjustment rod wherein turning the threaded tension adjustment rod adjusts the distance between the drive pulley and the tension pulley to adjust tension in the endless looped member; and at least one biasing member configured and arranged to provide a biasing force on the tension pulley to bias the tension pulley away from the drive pulley.