Patent ID: 9327943
Filing Date: 2016-05-03
CPC Classification: B66B

Claim Text:
1. A stairwell lift, which is installed in a stairwell connecting upstairs and downstairs or nearby the stairwell connecting upstairs and downstairs by a predetermined distance, comprising: at least two supporting columns, each of the supporting columns having a column top portion and a column bottom portion, the column bottom portions being securely fixed to a space inside or nearby the stairwell to be spaced from each other; a passenger space, which is arranged between the supporting columns; at least two sliding portions, the sliding portions being respectively mounted to two sides of the passenger space and being respectively fit over the supporting columns; and at least one driving mechanism, which is mounted to the column top portions to drive the passenger space to move along the supporting columns for ascending to the upstairs or descending to the downstairs; wherein the at least two supporting columns are arranged to be partly curve according to a location of a ceiling or sidewalls of the upstairs.