Patent ID: 6409497
Filing Date: 2002-06-25
Classification: B29C

Abstract:
A hot runner nozzle (1) for injection molding comprising a nozzle body (2) having a nozzle exit (5) for melts, at an exterior perimeter of which at least one jacket-heating unit (8) to heat the nozzle body (2) is located, wherein the heating unit (8) is enclosed at an exterior perimeter thereof by a sleeve (10), and wherein the sleeve (10) and the heating unit (10) are flexible in a radial direction, characterized in that the sleeve (10) is enclosed at its exterior perimeter by at least one circular lock (11) that rotates about a longitudinal axis (12) relative to the sleeve (10) between a released position and a clamped position, the facing surfaces of the sleeve (10) and the lock (11) each have a profile deviating from that of a cylindrical shell located concentric to the longitudinal axis (12), and at least one of the facing surfaces includes at least in areas a wedge lock surface (13) that has an abutting slant against which a seating area (14) of the surface of the other part (10, 11) lies.