F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
188/140, 188/209
F16D 65/56 (2006.01) F16D 55/224 (2006.01) F16D 65/14 (2006.01) F16D 65/16 (2006.01)
Patent
CA 2024928
A one-piece casing (20) comprising a bottom (22) and a shell (24) formed with a cylindrical bore (26) houses a piston (30) for hydraulic actuation of a brake. For mechanical parking brake actuation, a shaft (34) is supported in the bottom (22) of the casing and a ramp arrangement (50) is rotatable by the shaft, thereby being displaceable axially away from a ramp arrangement (40) which is secured to the casing. Two strut members (60,64) which are screwed together constitute an adjustable strut between the axially adjustable ramp arrangement (50) and the piston (30). A return spring (90) is positioned under axial bias between a thrust bearing (92) secured to the casing and a thrust bearing (58) at one of the two strut members (60). The thrust bearing (92) which is secured to the casing is formed at an insert (84) by which one of the strut members (60) is guided non-rotatably. The ramp arrangement (40) which is secured to the casing as well as the insert (84) are retained against axial displacement in the casing (20) by a common fastening member (96) and are prevented from rotating by a common twist preventing means (42).
Lucas Industries Public Limited Company
Macrae & Co.
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