Sidebit operated interchangeable core control lug

An interchangeable lock cylinder configured for securable placement in a lock housing, the interchangeable lock cylinder comprising:

• a shell body having an aperture;
• a plug body configured for rotational displacement about the aperture, the plug body having a key slot;
• and
• a retention mechanism having a control lug, a finger pin, and a control pin, the control lug having a chamber and an orifice, the orifice configured to receive the rotatable insertion of the plug body, the control pin configured for removable insertion into the chamber when the control lug is rotatably displaced to an engaged position, the finger pin being slideably displaceable along a surface of the control pin as the control pin is displaced from the chamber, at least a portion of the control pin biased against a front surface of the control lug when the control lug is in a disengaged position.

An interchangeable lock cylinder system comprising:

• a plug body having a key slot;
• a retention mechanism having a control lug, a finger pin, and a control pin, the control lug having a chamber and an orifice, the orifice configured to receive rotatable insertion of the plug body, the control pin configured for removable insertion into the chamber when the control lug is rotatably displaced to an engaged position;
• and
• a key having at least a top surface and a sidewall, the key further including a sidebit positioned along the sidewall, the key configured to be inserted into the key slot, the sidebit configured to displace the finger pin from a rest position to an activation position, the finger pin configured to slidingly engage the control pin as the finger pin removably displaces the control pin from the chamber as the sidebit lifts the finger pin to the activation position
• wherein the control pin is configured to prevent the rotational displacement of the control lug from the engaged position to a disengaged position when the control pin is operably positioned within the chamber, and wherein the finger pin is displaceable in a first direction and the control pin is displaceable in a second direction as the finger pin is slideably displaced along a surface of the control pin, the first direction being non-parallel to the second direction.

An interchangeable lock cylinder configured for securable placement in a lock housing, the interchangeable lock cylinder comprising:

• a shell body having an aperture;
• a plug body configured for rotational displacement about the aperture, the plug body having a key slot;
• and
• a retention mechanism having a control lug, a finger pin, and a control pin, the control lug having a chamber and an orifice, the orifice configured to receive the rotatable insertion of the plug body, the control pin configured for removable insertion into the chamber when the control lug is rotatably displaced to an engaged position, the finger pin slideably displaceable along a surface of the control pin as the control pin is displaced from the chamber, wherein the finger pin is biased to a rest position by a first biasing element, and wherein the finger pin is configured to be confined to the plug body when in the rest position,
• wherein the control pin is configured to prevent the rotational displacement of the control lug from the engaged position to a disengaged position when the control pin is operably positioned within the chamber, the finger pin being displaceable in a first direction and the control pin being displaceable in a second direction as the finger pin is slideably displaced along the surface of the control pin, the first direction being non-parallel to the second direction, and
• wherein a second biasing element is configured to bias the control pin into the chamber when the control lug is in the engaged position.