Operating element i.e. press button, for use in tappet switch of e.g. lift used in hospital, has manually-operated press surface with contact surface made of copper, and electrically-operated heating device attached to contact surface

摘要

The element i.e. press button (1), has a manually-operated press surface comprising a contact surface (2) that is made from copper, and an electrically-operated heating device (4) attached to the contact surface in such a manner that surface temperature of the contact surface is adjusted to a value above 35 degree Celsius. The contact surface is attached to a supporting body (22) that is made from non-conducting plastic or metal, where the operating element is manufactured as a single-piece.