Patent ID: 8051960
Filing Date: 2011-11-08
Classification: E06B,F16D

Abstract:
1. A braking apparatus for blind used to reduce the speed of a shielding member of the blind when it is lifted and lowered, comprising: a casing; a rotor rotatably supported within the casing; and a plurality of weights adapted to rotate together with the rotor in such a way so as to generate braking power, wherein a cylindrical shaft portion and a plurality of weight support portions radially projecting from a peripheral surface of the shaft portion at equal intervals in a circumferential direction of the shaft portion and extending along an axial direction thereof are formed on the rotor, and one end portion of each weight is swingably supported by the weight support portion extending over an entire length of each weight in the axial direction, each weight swinging between a position contacting an outer peripheral surface of the shaft portion and a position contacting an inner peripheral surface of the casing.