McClure, Qualey & Rodack, LLP
Knob structure
A knob structure includes a base, a rotational element, a clicking plate and a clicking sheet. The rotational element is rotatably disposed on the base and includes inner peripheral surfaces. The clicking plate is joined to the inner peripheral surfaces of the rotational element and includes a plurality of first engaging members. The clicking sheet is joined to the base and includes at least one second engaging member. The clicking plate is held between the base and the clicking sheet to force the clicking sheet against the clicking plate. The rotational element is configured to rotate the clicking plate with respect to the clicking sheet so that the second engaging member continuously engages with the first engaging members.
ASIA OPTICAL INTERNATIONAL LTD. SINTAI OPTICAL (SHENZHEN) CO., LTD.
G G G G
G05G G05G G05G G05G
inventional inventional inventional inventional
Chia-Kan Tsung-Mou
Chang Tsai