Actuator mechanism e.g. for use with medium voltage switchgear - has rotary input with fork end that operates against pin to turn rod through angle

摘要

An actuator for use with electrical switches handling medium range voltage levels has a shaft (1) that is turned through an arc to transmit motion to a switching bar set at 90 degrees (2). The coupling between the two is provided by a fork unit (3) and a pin (4). The fork unit has an internal profile with curved sections (5a) at the top and bottom (5a). Typically the unit is dimensioned to move the pin through 90 degrees. ADVANTAGE - Simple, compact and requiring little design space.