The present invention relates an elevating apparatus based on a hetero-oriented non-isometric, dual-spiral drive structure, comprising a first carrier and a second carrier, further comprising a first support and a second support that are telescoped together in a manner that they can rotate with respect to each other, the first support is provided with a first recessed portion and a first raised portion that shares the same spiral direction and spiral pitch, the second support is provided with a homo-oriented, isometric, dual-spiral second recessed portion that has a spiral direction different from that of the first recessed portion. The carrier of the present invention is provided in a simply-supported-beam, and the carrier force can be achieved without additional weight, and the operation is stable and reliable.

Multi-function stairlift connectivity includes a stairlift data collection system having data collection devices communicatively connected to a main controller. Such data collection devices may include sensors, switches, controllers, detectors, control boards, and location detectors providing data and settings in a stairlift (e.g., diagnostic information, system status data, faults, drive performance data). A communication module receives collected stairlift data and communicates wirelessly with a remote communication device. Waypoint detection may include stairlift carriage position detection employing electrical contacts on a stairlift carriage. Carriage position can be determined when the carriage stops at or passes a waypoint marker that includes electrical contacts connected to a waypoint element possessing a detectable electromagnetic characteristic (e.g., an identifiable resistive value). Where resistive value are used, waypoint locations can be determined by using a different resistive value for each waypoint.

Multi-function stairlift connectivity includes a stairlift data collection system having data collection devices communicatively connected to a main controller. Such data collection devices may include sensors, switches, controllers, detectors, control boards, and location detectors providing data and settings in a stairlift (e.g., diagnostic information, system status data, faults, drive performance data). A communication module receives collected stairlift data and communicates wirelessly with a remote communication device. Waypoint detection may include stairlift carriage position detection employing electrical contacts on a stairlift carriage. Carriage position can be determined when the carriage stops at or passes a waypoint marker that includes electrical contacts connected to a waypoint element possessing a detectable electromagnetic characteristic (e.g., an identifiable resistive value). Where resistive value are used, waypoint locations can be determined by using a different resistive value for each waypoint.

Apparatus for transporting a load from a first to a second level includes means for maintaining the load carrier in a predetermined rotational position. The means includes a motor to rotate the load carrier relative to the frame. The apparatus includes an emergency rotation blocking arrangement having a first braking member rigidly connected to the frame or load carrier, a second braking member rigidly connected to the other of the frame and load carrier, a third braking member between the first and second braking members, and a movable retaining member which holds the third braking member and is movable relative to the second braking member. In braking mode the retaining member moves relative to the second braking member to move the third braking member to engage the primary and secondary braking surface and block rotation of the second braking member in a tangential direction relative to the first braking member.

Apparatus for transporting a load from a first to a second level includes means for maintaining the load carrier in a predetermined rotational position. The means includes a motor to rotate the load carrier relative to the frame. The apparatus includes an emergency rotation blocking arrangement having a first braking member rigidly connected to the frame or load carrier, a second braking member rigidly connected to the other of the frame and load carrier, a third braking member between the first and second braking members, and a movable retaining member which holds the third braking member and is movable relative to the second braking member. In braking mode the retaining member moves relative to the second braking member to move the third braking member to engage the primary and secondary braking surface and block rotation of the second braking member in a tangential direction relative to the first braking member.

A method is provided for ensuring the integrity of a stairlift installation constructed from re-used components. Data representative of the form of a stairlift rail is stored in a control facility included in the stairlift carriage and then compared with data sensed in real time. A stairlift carriage may be disabled in the event sensed data varies from stored data.

A method is provided for ensuring the integrity of a stairlift installation constructed from re-used components. Data representative of the form of a stairlift rail is stored in a control facility included in the stairlift carriage and then compared with data sensed in real time. A stairlift carriage may be disabled in the event sensed data varies from stored data.

Disclosed is a safety system for a stairlift. The Safety system comprises a component for sending and receiving an electromagnetic signal that includes a light emitting device such as an LED and a light receiving device such as a photo resistor, an electromagnetic signal interrupter like a movable vane, a moveable activator, and a processor. The activator is configured to be moved by a user of the stairlift, which in turn causes the signal interrupter to interrupt a first electromagnetic signal.

Disclosed is a safety system for a stairlift. The Safety system comprises a component for sending and receiving an electromagnetic signal that includes a light emitting device such as an LED and a light receiving device such as a photo resistor, an electromagnetic signal interrupter like a movable vane, a moveable activator, and a processor. The activator is configured to be moved by a user of the stairlift, which in turn causes the signal interrupter to interrupt a first electromagnetic signal.

Systems, apparatuses, and methods are described for a stairlift overspeed safety system are disclosed. The overspeed safety system may include a centripetal cam assembly, a trigger assembly, and a jammer assembly. The centripetal cam assembly may include a spring-loaded plate and a plurality of centripetal cams connected to the spring-loaded plate, configured to move to an extended position when the rail speed exceeds the speed threshold. The trigger assembly may include a trigger plate configured to be pushed by at least one of the centripetal cams when moved to the extended position. Pushing the trigger plate may cause a switch to open to shut off power to the motorized stairlift. The jammer assembly may include a jammer configured to wedge between teeth of a rack and pinion of the motorized stairlift to initiate a deceleration to stop movement of the motorized stairlift.