Status indicating lockset trim
An exemplary lockset trim generally includes an escutcheon, an indicator mechanism, and a cam. The indicator mechanism is mounted in the escutcheon for sliding movement between a first linear position, in which a first indicium is visible via a window in the escutcheon, and a second linear position, in which a second indicium is visible via the window. The indicator mechanism is biased toward the first linear position. The cam is rotatably mounted in the escutcheon for rotation about a longitudinal axis between a first rotational position, in which the cam permits the indicator mechanism to adopt the first linear position, and a second rotational position, in which the cam retains the indicator mechanism in the second linear position.
1 . A lockset trim, comprising:
an escutcheon comprising a window;
an indicator mechanism mounted in the escutcheon for sliding movement between a first linear position, in which a first indicium is visible via the window, and a second linear position, in which a second indicium is visible via the window, wherein the indicator mechanism comprises a plate portion including an arcuate cam surface, and wherein the indicator mechanism is biased toward the first linear position; and
a cam rotatably mounted in the escutcheon for rotation about a longitudinal axis between a first rotational position, in which the cam permits the indicator mechanism to adopt the first linear position, and a second rotational position, in which the cam retains the indicator mechanism in the second linear position, wherein the cam comprises:
a body portion surrounding the longitudinal axis;
a finger that rides along the arcuate cam surface as the cam rotates between the first rotational position and the second rotational position;
an arm extending from the body portion toward the finger; and
one or more bends that cause a portion of the arm to extend in an axial direction defined by the longitudinal axis, wherein the portion of the arm that extends in the axial direction is positioned between the body portion and the finger.
2 . The lockset trim of claim 1 , wherein the cam is operable to remain in the first rotational position during movement of the indicator mechanism by an externally-applied tampering force from the first linear position to the second linear position.
3 . The lockset trim of claim 1 , further comprising a spring constantly biasing the indicator mechanism toward the first linear position.
4 . The lockset trim of claim 1 , further comprising an actuator including a tailpiece engaged with the cam such that the actuator is operable to rotate the cam between the first rotational position and the second rotational position.
5 . The lockset trim of claim 1 , further comprising a back plate mounted to the escutcheon such that the indicator mechanism is captured between the escutcheon and the back plate;
wherein the back plate comprises a protruding portion configured to be received in a cross-bore of a door;
wherein the body portion of the cam is received in the protruding portion; and
wherein the portion of the arm that extends in the axial direction extends out of the protruding portion such that the finger is positioned outside the protruding portion.
6 . The lockset trim of claim 1 , wherein the plate portion comprises an indicating portion including the first indicium and the second indicium, and wherein the indicating portion and the cam surface are coupled for joint movement between the first linear position and the second linear position.
7 . A lockset trim, comprising:
an escutcheon comprising a window;
an anchor base mounted within the escutcheon, the anchor base comprising a channel;
a spring seated in the channel;
an indicator mechanism mounted in the escutcheon for sliding movement between a first linear position, in which a first indicium is visible via the window, and a second linear position, in which a second indicium is visible via the window, wherein the indicator mechanism comprises a plate portion including a tab that projects into the channel and engages the spring such that the spring biases the indicator mechanism toward the first linear position; and
a cam rotatably mounted in the escutcheon for rotation about a longitudinal axis between a first rotational position, in which the cam permits the indicator mechanism to adopt the first linear position, and a second rotational position, in which the cam retains the indicator mechanism in the second linear position.
8 . A lockset trim, comprising:
an escutcheon comprising a window;
an indicator plate mounted in the escutcheon for sliding movement between a first linear position and a second linear position, wherein the indicator plate comprises:
an indicating portion comprising a first indicium that is aligned with the window when the indicator plate is in the first position, and a second indicium that is aligned with the window when the indicator plate is in the second position; and
a cam surface having a fixed location relative to the indicating portion such that the indicating portion and the cam surface move jointly as a unit;
a spring biasing the indicator plate toward the first linear position; and
a cam rotatably mounted in the escutcheon for rotation about a longitudinal axis between a first rotational position in which the cam permits the indicator mechanism to adopt the first linear position as a result of the biasing of the spring, and a second rotational position in which the cam retains the indicator mechanism in the second linear position against the biasing of the spring;
wherein the cam comprises an arm;
wherein with the cam in the second rotational position, a finger of the arm is engaged with the cam surface such that the arm exerts on the indicator plate a force opposite the biasing of the spring; and
wherein the cam surface comprises a detent recess that is engaged with the finger when the cam is in the second rotational position.
9 . The lockset trim of claim 8 , wherein the indicator plate is biased toward the first position at all times by the spring.
10 . The lockset trim of claim 8 , wherein the spring at all times biases the indicator plate in a first linear direction; and wherein, with the cam in the second rotational position, a line extending from the rotational axis to the finger points in a second linear direction opposite the first linear direction.
11 . The lockset trim of claim 8 , wherein the cam surface is arcuate.