Device for climbing into round or polygonal shafts; has handle and skirt part that is sealed against shaft wall and may be provided with projections

摘要

The device has a handle (1.4) and a skirt part (1.5) that is sealed against the shaft wall and may be provided with projections (1.3). The device can be used to suspend a ladder. The device can be fitted to the top of the shaft or removed from it and may be fitted with rollers (1.8) to transport it to different shafts.