Trapped Key Interlocking

This entry is part 3 of 7 in the series Guards and Guard­ing

Many machine design­ers think of inter­locks as exclu­sive­ly elec­tri­cal devices; a switch is attached to a mov­able mechan­i­cal guard, and the switch is con­nect­ed to the con­trol sys­tem. Trapped Key Inter­lock­ing is a way to inter­lock guards that is equal­ly effec­tive, and often more appro­pri­ate in dif­fi­cult envi­ron­men­tal con­di­tions. Con­tin­ue read­ing “Trapped Key Inter­lock­ing”