Abstract: An elevator system includes a car which can move in an elevator shaft and has a car roof which has a walkable region. A safety element is arranged in the region of a roof edge of the car roof for reducing the gap between the elevator shaft wall and the car in order to protect people from falling into the elevator shaft. The safety element has a toe board section for creating a toe protection and for laterally bordering the walkable region, wherein the toe board section is arranged such that it is inwardly offset in relation to an outer edge of the safety element and in relation to the roof edge by a safety distance.

Abstract: An elevator system includes a car which can move in an elevator shaft and has a car roof which has a walkable region. A safety element is arranged in the region of a roof edge of the car roof for reducing the gap between the elevator shaft wall and the car in order to protect people from falling into the elevator shaft. The safety element has a toe board section for creating a toe protection and for laterally bordering the walkable region, wherein the toe board section is arranged such that it is inwardly offset in relation to an outer edge of the safety element and in relation to the roof edge by a safety distance.

Abstract: A method and apparatus for monitoring an elevator drive brake wherein the method includes the steps of detecting a spring force (Fs-closed) when the brake is closed, detecting a spring force (Fs-open) when the brake is open, determining the difference between the two detected spring forces (?Fs), and comparing the difference between the two detected spring forces with at least one preset permissible force differential (?Fsmin; ?Fsmax) to determine whether the brake is defective. The apparatus includes a force sensor for each brake spring to be monitored, and an electronic monitor that stores at least one preset permissible force differential (?Fsmin; ?Fsmax) and, during operation, compares the at least one preset permissible force differential with an actual force difference (?Fs) between an open spring force (Fs-open) and a closed spring force (Fs-closed) as detected by the force sensor.

Abstract: A shaft access enabling device of an elevator system has a shaft access control unit and at least one access monitoring unit, wherein the shaft access control unit controls an operating state of the at least one access monitoring unit and the access monitoring unit monitors at least one shaft access. The shaft access control unit has at least two different operating modes for controlling the operating state of the at least one access monitoring unit and inspects access authorization before changing between the at least two operating modes thereof.

Abstract: In order to achieve simple maintenance and/or installation of an elevator system, a marking device has at least one light emitting unit for generating at least one mark on a component of the system.

Abstract: A circuit (34) for resetting a component (21) within an elevator safety chain (23). The reset circuit (24) comprises a first reset switch (31), a second reset switch (32) and a door contact (33). This first reset switch is mountable within an elevator shaft (2) and the second reset switch (32) is mountable outside the elevator. Preferably, the second reset switch (32) is hidden from members of the general public but is accessible to an elevator technician. The door contact (33) is mountable alongside the landing door (13). The first reset switch (31), the second reset switch (32) and the door contact (33) are arranged in series so that all must be closed to reset the component (21) whereby, upon activation, the first reset switch (31) remains closed for a first predetermined time period (?t1) after which it returns to its open state.

Abstract: A shaft access enabling device of an elevator system has a shaft access control unit and at least one access monitoring unit, wherein the shaft access control unit controls an operating state of the at least one access monitoring unit and the access monitoring unit monitors at least one shaft access. The shaft access control unit has at least two different operating modes for controlling the operating state of the at least one access monitoring unit and inspects access authorization before changing between the at least two operating modes thereof.

Abstract: In order to achieve simple maintenance and/or installation of an elevator system, a marking device has at least one light emitting unit for generating at least one mark on a component of the system.

Abstract: A sliding door for an elevator installation comprises door leaves, which are horizontally displaceable between a closed position and an open position. The sliding door further comprises a synchronization element, which is coupled with the door leaves and so synchronizes these that the door leaves are guided at different speeds in an opening direction from the closed position to the open position and conversely against the opening direction. The sliding door comprises a toggle mechanism which a couples a door post with only one door leaf, which is not directly arranged at the door post.

Abstract: A sliding door for an elevator installation includes door leaves, which are horizontally displaceable between a closed position and an open position. The sliding door also includes a synchronization element, which is coupled with the door leaves and so synchronizes these that the door leaves are guided at different speeds, in an opening direction from the closed position to the open position or conversely opposite to the opening direction. The synchronization element includes at least one scissors linkage. The sliding door also includes a drive shaft coupled by way of a drive linkage at least with one door leaf. The sliding door additionally includes a locking mechanism which is so coupled with the drive shaft that the locking mechanism is openable by an actuation of the drive shaft when the door leaves are still substantially closed.

Abstract: A circuit (34) for resetting a component (21) within an elevator safety chain (23). The reset circuit (24) comprises a first reset switch (31), a second reset switch (32) and a door contact (33). This first reset switch is mountable within an elevator shaft (2) and the second reset switch (32) is mountable outside the elevator. Preferably, the second reset switch (32) is hidden from members of the general public but is accessible to an elevator technician. The door contact (33) is mountable alongside the landing door (13). The first reset switch (31), the second reset switch (32) and the door contact (33) are arranged in series so that all must be closed to reset the component (21) whereby, upon activation, the first reset switch (31) remains closed for a first predetermined time period (?t1) after which it returns to its open state.

Abstract: A lift comprises a first lift cage, a second lift cage and a counterweight, wherein the counterweight, the first lift cage and the second lift cage are coupled together by way of a support means for lifting and holding, wherein the counterweight, the first lift cage and the second lift cage are additionally coupled together by way of a compensation means and wherein the compensation means runs over at least one deflecting roller. The lift further comprises a brake device for application to the deflecting roller of dissipative braking torque which counteracts the rotation thereof.

Abstract: A guide device for an elevator car has a guide shoe that is displaceable by a linear guide that is arranged on the elevator car. Should the elevator car in an extreme situation travel beyond the uppermost floor, the guide shoe is arrested by a projecting console, and the elevator car travels past the console. The linear guide permits the guide shoe to execute a movement relative to the elevator car. Thus, the elevator car, or parts thereof, utilizes the hoistway headroom that is provided for the drive unit or other hoistway equipment. The counterweight can be provided with the displaceable guide shoe for utilizing the hoistway pit in a similar manner.

Abstract: A guide device for an elevator car has a guide shoe that is displaceable by a linear guide that is arranged on the elevator car. Should the elevator car in an extreme situation travel beyond the uppermost floor, the guide shoe is arrested by a projecting console, and the elevator car travels past the console. The linear guide permits the guide shoe to execute a movement relative to the elevator car. Thus, the elevator car, or parts thereof, utilizes the hoistway headroom that is provided for the drive unit or other hoistway equipment. The counterweight can be provided with the displaceable guide shoe for utilizing the hoistway pit in a similar manner.