Patent ID: 6264256
Filing Date: 2001-07-24
Classification: E05B,Y10T

Abstract:
A closing system for doors having an inner rotary knob (10) adapted to be mounted on an inner side of the door and connected to a closing element (30) for the actuation of a latch and on outer rotary knob (50), wherein the inner rotary knob (10) is rotationally fixed with respect to a sleeve (12) on which the closing element (30) is rotationally fixed wherein the outer rotary knob (50) is rotationally fixed with respect to a shaft (52) which extends through the sleeve (12) of the inner rotary knob (10) and is rotationally fixed with respect to a coupling unit (40) arranged in the inner rotary knob (10), which is freely rotatable relative to the inner rotary knob (10) in a free wheel state and is coupled so as to be rotationally fixed with respect to the inner rotary knob (10) in a driving state, and wherein the coupling unit (40) is connected, for the changeover between the free wheel state and the driving state, to a code input unit arranged in the outer rotary knob (50) via an electrical and/or optical signal path extending through the shaft (52) of the outer rotary knob (50).