TENSIONING UNIT FOR A SUPPORTING BAND OF A PROTECTIVE HELMET, IN PARTICULAR FOR FORESTRY WORKERS.

摘要

A tensioning unit (48) is described for a supporting band (47), which is attached to the lower edge of an interior fitting (40) of a protective helmet (30), for fastening the helmet (30) on a user's head. The supporting band (47) comprises a head band (44), which continues in a neck band (46) which has two free ends connected to each other by a basic body (50) of the tensioning unit (48). The tensioning unit (48) has a neck shell (70) and a basic body (50) which are connected in an articulated manner to each other by a transmission lever (80). The basic body (50) can be pivoted relative to the neck shell (70) by a tensioning lever (51) which is coupled to said basic body and is supported on the transmission lever (80) by a cam (52).