Lock for blind users stick has axis shaft selectively locked by rotating pin with cut out in side of shank

摘要

The lock for a blind users stick allow locking of the support axis for the face of the stick rubber ferrule (1). The axis has a shoulder to engage inside the ferrule. A locking pin (3) has a recess on the side of its shank to allow selective locking of the axis. The rubber ferrule can have a stiffening sleeve.