Braking apparatus for blind

Details Braking apparatus for blind Braking apparatus for blind

2007-12-17

2011-11-08

Schwartz, Christopher (Department: 3657)

Brakes

Wheel

One-way brakes

C188S082100, C160S299000, C192S1050CD

Reexamination Certificate

active

08051960

ABSTRACT:
A braking apparatus for a blind, used to reduce the speed of a shielding member of the blind when it is lifted and lowered, in which weights are stably supported and operated without an increase in the size of the braking apparatus. The braking apparatus has a casing, a rotor rotatably supported with in the casing, and weights adapted to rotate together with the rotor in such a way that they can be in contact with the inner peripheral surface of the casing. A cylindrical shaft portion and weight support portions radially projecting from the peripheral surface of the shaft portion at equal intervals in the circumferential direction are formed on the rotor. One end of each weight is swingably supported by the weight support portion extending over the axial-direction entire length of the weight.

REFERENCES:
patent: 4513805 (1985-04-01), Mase
patent: 5577587 (1996-11-01), Jansson
patent: 6155328 (2000-12-01), Welfinder
patent: 6253896 (2001-07-01), Notaras et al.
patent: 6550597 (2003-04-01), Taniguchi
International Search Report (Jan. 8, 2008) corresponding to PCT/JP2007/074206.

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