ROTARY KNOB FOR ELECTRICAL SYSTEM

摘要

The invention concerns a rotary knob for an electrical system, whereof the body (10) contains a rotary maneuvering member (20) which actuates a cam-driving part (50) and bears one or several electrical units. A cup (15) is defined between an outer cylindrical flange (12) of the body (10) and an inner cylindrical sleeve (13) and contains a spring either of the helical type (R) for urging a sliding ring (30) separate from the driving part (50), or of the torsion type (R') to return the maneuvering member. The ring (30) provides a sensitivity function through its adapted shapes. The cylindrical sleeve (13) defines in its central opening a centering seat (23) of the shank (22) of the maneuvering member.