F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
188/146
F16D 65/16 (2006.01) B60T 13/74 (2006.01) F16D 55/224 (2006.01) F16D 63/00 (2006.01) F16D 65/14 (2006.01) F16D 65/21 (2006.01)
Patent
CA 1300045
ELECTRICALLY ACTUATED DISC BRAKE ABSTRACT OF THE DISCLOSURE The electrically actuated disc brake (10) comprises a caliper (12) having a bore (16) receiving therein an actuating mechanism (90), and an electric motor (40)attached to the caliper housing (12). The actuating mechanism (90) comprises a planetary gear mechanism (50) which includes a sun gear (52), planetary gears (54), and a pair of ring gears (70, 80). An actua- tor sleeve (68) is disposed about the ring gears (70, 80) and contains a helical groove (69) disposed opposite a complementary-shaped helical groove (89) in a rotatable ring gear (80). The helical grooves (69, 89) receive therebetween a bearing mechanism (85) biased by a spring (87) toward a fixed stop (86) located within the helical grooves (69, 89). Operation of the electric motor (40) effects rotation of the rotatable ring gear (80) and axial displacement of the actuator sleeve (68) into en- gagement with a thrust pad (96) located adjacent one of the friction elements (18) so that the caliper (12), by reaction, displaces the other friction element (20) into engagement with the rotor (22).
565132
Allied-Signal Inc.
Macrae & Co.
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