An illustrative example elevator sensor device includes at least one sensor supported on a door of an elevator car. The sensor provides an output including an indication of at least movement of the door along at least one axis and movement of the elevator car along at least one axis. A processor associated with the at least one sensor receives the output and determines at least one characteristic of the movement of the door based on the indication of the movement of the door. The processor also determines a location of the elevator car where the movement of the door occurs based on the indication of movement of the elevator car.

The disclosure relates to a method for detecting an impact on an elevator door. The method is characterized in that it comprises detecting a break in an elevator door safety circuit; comparing characteristics of the break to a set of parameters; and performing an action when the characteristics of the break fulfil the conditions determined by the set of parameters. The disclosure further relates to an apparatus, to an elevator safety system and to an elevator.

The disclosure relates to a method for detecting an impact on an elevator door. The method is characterized in that it comprises detecting a break in an elevator door safety circuit; comparing characteristics of the break to a set of parameters; and performing an action when the characteristics of the break fulfil the conditions determined by the set of parameters. The disclosure further relates to an apparatus, to an elevator safety system and to an elevator.

The present invention provides a maintenance safety apparatus for an elevator system and a method for operating the same, and belongs to the technical field of elevators. The maintenance safety apparatus of the present invention comprises a safety switch, a door lock device, a linkage control assembly and a linkage locking assembly. The maintenance safety apparatus of the present invention is very simple to operate and is capable of ensuring the safety of the staff entering a hoistway for performing maintenance operations.

The present invention provides improved elevator door hatches. The elevator door hatches drop open into the elevator cab and slide at a desirable angle just underneath the elevator cab ceiling, without extending too far or too low into the interior cab space. The elevator door hatches are able to accommodate light fixtures and cabling installed into the elevator door hatches without disconnecting when the door hatches are slid underneath the elevator cab ceiling in the open position. The door hatch also allows for the drop ceiling to be mounted closer to the canopy, which increases the usable height of the elevator cab.

The present invention provides improved elevator door hatches. The elevator door hatches drop open into the elevator cab and slide at a desirable angle just underneath the elevator cab ceiling, without extending too far or too low into the interior cab space. The elevator door hatches are able to accommodate light fixtures and cabling installed into the elevator door hatches without disconnecting when the door hatches are slid underneath the elevator cab ceiling in the open position. The door hatch also allows for the drop ceiling to be mounted closer to the canopy, which increases the usable height of the elevator cab.

A sill gap monitoring system includes a sensor assembly configured to sense a sill gap between an elevator sill and at least one of a bottom surface of an elevator door and a bottom surface of a gib. The sill gap monitoring system generates an alert when the sill gap is greater than a sill gap limit.

A sill gap monitoring system includes a sensor assembly configured to sense a sill gap between an elevator sill and at least one of a bottom surface of an elevator door and a bottom surface of a gib. The sill gap monitoring system generates an alert when the sill gap is greater than a sill gap limit.

An elevator system (2) comprises at least one elevator car (6) configured for traveling along a hoistway (4) between a plurality of landings (8); a plurality of landing doors (11) with one or more landing door panels (22) located at the landings (8) and providing access to the hoistway (4) from the landings (8); a plurality of landing door switches (10) and at least one landing door sensor (20). Each landing door switch (10) is configured for monitoring the closed/open state of at least one associated landing door panel (22), respectively. Each landing door sensor (20) is attached to the at least one elevator car (6) and configured for monitoring a closed/open state of a landing door panel (22) located opposite to the landing door sensor (20).

An elevator system (2) comprises at least one elevator car (6) configured for traveling along a hoistway (4) between a plurality of landings (8); a plurality of landing doors (11) with one or more landing door panels (22) located at the landings (8) and providing access to the hoistway (4) from the landings (8); a plurality of landing door switches (10) and at least one landing door sensor (20). Each landing door switch (10) is configured for monitoring the closed/open state of at least one associated landing door panel (22), respectively. Each landing door sensor (20) is attached to the at least one elevator car (6) and configured for monitoring a closed/open state of a landing door panel (22) located opposite to the landing door sensor (20).