Stannah Stairlifts Limited

Paul Alexander Cook

Nigel Titchener

Gavin Scott Pugh

Martin Thomas Piper

A footrest safety pad arrangement is incorporated in a stairlift carriage in which movement of a safety pad relative to the carriage is sensed by an electromagnetic sensor and a control signal applied to the stairlift drive motor.

Stairlifts

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.

The disclosure defined by this invention relates to an electronic control facility for a stairlift. The control facility includes an installation mode in which a number of steps to be undertaken at the time of installation of the stairlift are defined. The control facility also includes a user mode in which the operation of the stairlift is controlled by a user. According to the invention, the control facility is configured so that the user mode cannot be entered until all steps in the installation mode have been completed.

Or relating to stairlifts

The invention provides a method and apparatus for continuously adjusting the speed of a stairlift in response to a number of operating parameters such as battery voltage and motor current draw. The method preferably further includes monitoring the speed of a reference point on a stairlift chair and comparing this with a maximum permissible speed.

In or relating to stairlifts

The invention provides a method and apparatus for controlling the speed of a stairlift (). The speed of rotation of the carriage (), whilst traversing bends in the rail (), is monitored and the speed of the carriage drive motor () then controlled in reaction to the speed of rotation. A 3-axis gyroscope () is preferably used to monitor the speeds of rotation of the carriage () and the outputs from this gyroscope () may be processed to provide different degrees of speed control.

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Shrewton, United Kingdom

Paul Alexander Cook