What is a lifting platform? • It is an electrically powered lifting appliance. • It can have an open or an enclosed liftway. • It can have a fully enclosed car or an open platform carriage within the liftway. • It is intended for persons with impaired mobility (for people who have problems using stairs).
Hold-to-run push buttons • With an open carriage, a platform lift has “hold-to-run” push buttons which will allow the platform to stop immediately when released. • The platform carriage “hold-to-run” buttons have priority over the outside landing call buttons. • With a fully enclosed car automatic controls may be used. • Automatic controls have priority over the outside landing call button
Travel speed is limited to 0, 15 m/s. ü The speed of a lifting platform must not exceed 0, 15 m/s. ü The slow speed will limit the stopping distance of a moving platform, to a maximum of 10 -15 mm.
Sensitive safety edges or photo cell protection ü Sensitive safety edges or photo cell protection are mounted where the platform is open to the surrounding shaft walls. ü The distance between the platform and the smooth, hard, surrounding shaft walls is maximum <10 -20 mm. • Sensitive safety edges or photo cell protection for added safety
Drive systems for lifting platforms. • Due to different climate zones and traditions in Europe there are two main drive systems for lifting platforms. • The hydraulic drive system is the most common in southern and central Europe whilst the screw drive system is more common in the northern parts of Europe.