Door handle for fire-proof doors comprises a fire-proof core made of a solid material

摘要

Door handle (1) comprises a fire-proof core (6) made of a material having a higher melting point than the material surrounding the core. The core is made of a solid material and a square recess (8) receiving the handle rod is arranged in a solid enlarged area of the handle neck (4) of the core. A free end (9) of the handle part (5) of the core protruding into the handle part (3) of the door handle is tapered. Preferred Features: A tapering (10) of the handle part of the core protruding into the handle part of the door handle is arranged in the region of half the length of the handle part of the door handle. The core is a curved steel rod made by casting.