A latch mechanism configured to engage a mating pin is disclosed. In various embodiments, the latch mechanism includes a latch frame; a latch arm pivotally mounted to the latch frame at a pivot axis; and a bias member configured to apply a load to the latch arm in a transverse direction generally perpendicular to the pivot axis and to bias the latch arm from rotating in a first rotational direction about the pivot axis and from rotating away from the mating pin.

A latch mechanism configured to engage a mating pin is disclosed. In various embodiments, the latch mechanism includes a latch frame; a latch arm pivotally mounted to the latch frame at a pivot axis; and a bias member configured to apply a load to the latch arm in a transverse direction generally perpendicular to the pivot axis and to bias the latch arm from rotating in a first rotational direction about the pivot axis and from rotating away from the mating pin.

Disclosed herein are cylindrical door locks configured to indicate the lock status of the door lock to nearby persons. In some instances, the lock status is indicated on a first side of the door. In other instances, the lock status is indicated on both a first side and a second side of the door.

An indicator assembly according to certain embodiments generally includes a mounting bracket, a follower, a transmission ring, and an indicator plate. The follower is rotatably mounted to the mounting bracket, and is configured to receive a tailpiece of an input device. The transmission ring is rotatably mounted to the mounting bracket, and is engaged with the follower. The indicator plate is slidably mounted to the mounting bracket for movement between a first indicator plate position and a second indicator plate position to selectively place a first indicium of the indicator plate within a reference area. The transmission ring is operably connected with the indicator plate such that movement of the transmission ring between a first transmission ring position and a second transmission ring position drives the indicator plate between the first indicator plate position and the second indicator plate position.

An indicator assembly according to certain embodiments generally includes a mounting bracket, a follower, a transmission ring, and an indicator plate. The follower is rotatably mounted to the mounting bracket, and is configured to receive a tailpiece of an input device. The transmission ring is rotatably mounted to the mounting bracket, and is engaged with the follower. The indicator plate is slidably mounted to the mounting bracket for movement between a first indicator plate position and a second indicator plate position to selectively place a first indicium of the indicator plate within a reference area. The transmission ring is operably connected with the indicator plate such that movement of the transmission ring between a first transmission ring position and a second transmission ring position drives the indicator plate between the first indicator plate position and the second indicator plate position.

Methods, systems, and apparatus, including computer programs encoded on computer storage mediums, for a smartlock device that can be integrated in a door at a property. The smartlock device includes a locking mechanism configured to lock the door and to unlock the door. The device includes a radio device and a sensor that determines a first temperature of the smartlock device and a second temperature of a room that is accessible via the door. The radio device is operable to: i) receive parameter signals from the sensor indicating each of the first and second temperatures; ii) transmit data that includes the first and second temperatures to a monitoring system; and iii) receive a command to cause the locking mechanism to unlock the door based on information from the monitoring system. The information includes a determined routing of occupants at the property and is presented on a display of the device.

Methods, systems, and apparatus, including computer programs encoded on computer storage mediums, for a smartlock device that can be integrated in a door at a property. The smartlock device includes a locking mechanism configured to lock the door and to unlock the door. The device includes a radio device and a sensor that determines a first temperature of the smartlock device and a second temperature of a room that is accessible via the door. The radio device is operable to: i) receive parameter signals from the sensor indicating each of the first and second temperatures; ii) transmit data that includes the first and second temperatures to a monitoring system; and iii) receive a command to cause the locking mechanism to unlock the door based on information from the monitoring system. The information includes a determined routing of occupants at the property and is presented on a display of the device.

An equipment carrier holding device has a housing with a door. A screwing block is arranged in the housing. A clamping block and a fastening screw fix a fastening link of an item of equipment between the clamping block and the screwing block. The clamping block is positioned in relation to the door such that, in the event of incomplete arresting of the fastening screw, the fastening screw forms a mechanical barrier to complete closing of the door. A rail vehicle is also described which is equipped with such an equipment carrier holding device.

A door lock illumination device connected to a door, the door lock illumination device including a main body, a key hole disposed on at least a portion of the main body to receive a key therein, and an illumination unit disposed within at least a portion of the main body to illuminate in response to the key hole receiving the key.