Brakes

Details Brakes Brakes

F - Mech Eng,Light,Heat,Weapons

16

D

188/175

F16D 49/16 (2006.01) F16D 59/02 (2006.01) F16D 65/14 (2006.01)

Patent

CA 1050447

ABSTRACT OF THE DISCLOSURE A brake comprises a pair of arms each pivotally coupled to a base and each carrying a brake block mounted on a brake shoe so that, in use, the brake blocks can engage opposite sides of a brake drum coupled to the apparatus with which the brake is used, spring means biassing the arms about their pivots so that the brake blocks are urged towards one another for effecting braking, and an electro- magnetically-powered brake release mechanism arranged, when energized, to exert a force such as to overcome the spring biassing of the arms and pivot the arms apart so as to release the brake pads from engagement with the drum. The spring means comprises a helical spring mounted under compression between a floating spring seat mounted on one end of a rod pivotally connected at its other end to one of the arms at the end thereof remote from the base, and a fixed spring seat which is mounted on the other brake arm and has a passage through which the rod extends and the brake release mechanism applies its force to the floating spring seat end of the rod. The base and the brake arms are constructed as assemblies of sheet metal pressings, and the electromagnetic parts of the brake release mechanism include lamination stacks which are sandwiched between side plates of one of the arms.

245559

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