Dismountable spring hinge for spectacles frame arm has hinge housing provided with service region penetrated to provide access to interior of housing

摘要

The spring hinge (1) has a housing (3) receiving a hinge element (5) and a locking element (11) and having a closed service region (29) provided by a wall section (31) of reduced wall thickness, which can be penetrated, e.g. by an inserted tool (35), for providing access to the interior of the hinge housing.