초록 ▼

An electrically controlled lock (10), including a retractable latchbolt and a clutch mechanism disposed between a latchbolt retracting mechanism for retracting the latchbolt and a drive member (11) for driving the latchbolt retracting mechanism. The clutch mechanism includes a pair of engageable bod

An electrically controlled lock (10), including a retractable latchbolt and a clutch mechanism disposed between a latchbolt retracting mechanism for retracting the latchbolt and a drive member (11) for driving the latchbolt retracting mechanism. The clutch mechanism includes a pair of engageable bodies (18, 22) which are relatively movable between an engaged condition in which drive of the drive member (11) is transmitted to the latchbolt retracting mechanism for retracting the latchbolt, and a disengaged condition in which transmission of drive between the drive member (11) and the latchbolt retracting mechanism is interrupted so as to prevent retraction of the latchbolt. The relative movement of the engageable bodies (18, 22) occurring as a result of engagement of at least one of the bodies with an actuating member (32) which is controlled by an electrical actuator (31). The actuating member (32) being movable between a first position facilitating disengagement of the engageable bodies (18, 22) and a second position displaced from the first position, and facilitating engagement of the engageable bodies (18, 22).

대표청구항 ▼

1. An electrically controlled lock, including a retractable latchbolt and a clutch mechanism disposed between a latchbolt retracting mechanism for retracting said latchbolt and a drive member for driving said latchbolt retracting mechanism, said clutch mechanism including first and second engageable

1. An electrically controlled lock, including a retractable latchbolt and a clutch mechanism disposed between a latchbolt retracting mechanism for retracting said latchbolt and a drive member for driving said latchbolt retracting mechanism, said clutch mechanism including first and second engageable bodies which are connected to said drive member and said latchbolt retracting mechanism respectively, so that said drive member is operable to rotate said first engageable body and said latchbolt rectracting mechanism is operable upon rotation of said second engageable body, said engageable bodies being relatively movable between an engaged condition in which drive of said drive member is transmitted to said latchbolt retracting mechanism for retracting said latchbolt, and a disengaged condition in which transmission of drive between said drive member and said latchbolt retracting mechanism is interrupted so as to prevent retraction of said latcbbolt, said relative movement of said engageable bodies occurring as a result of engagement of at least one of said bodies with an actuating member which is controlled by electrical actuating means to move between a non-actuated and an actuated position, in said non-actuated position said actuating member is disposed between said engageable bodies and is operable, upon drive by said drive member to rotate said first engageable body, to engage at least one of said first and second engageable bodies and to cause them to disengage, and in said actuated position, said actuating member is positioned to permit said engageable bodies to remain engaged upon rotation of said first engageable body by said drive member for transmission of drive through said second engageable body to said latchbolt retracting mechanism.