F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
F16D 51/10 (2006.01) B24B 19/28 (2006.01) F16D 51/00 (2006.01) F16D 51/02 (2006.01) F16D 51/12 (2006.01) F16D 51/14 (2006.01) F16D 65/08 (2006.01) F16D 65/09 (2006.01)
Patent
CA 2396906
A drum brake assembly (10) including a rotatable drum having a radially inner braking surface and a brake shoe (11) of single piece construction and of generally circular form mounted within the drum against a backing plate (12). The brake shoe (11) has a radially outer face (18) and a friction lining (16,17) mounted thereon in facing relationship to the radially inner braking surface. Actuating means (13) having actuated brake on and released brake off conditions and being operable in the actuated condition to diametrically expand the brake shoe (11) is provided. Positioning means (21) are also provided for positioning the brake shoe (11) within the drum when the actuating means (13) is in the brake off condition to provide for complete clearance between the outer face (18) of the friction lining (16, 17) and the inner braking surface of the drum. A grinding jig for grinding friction lining is also provided and a brake assembly having connecting means for connecting the brake shoe to the backing plate.
L'invention concerne un assemblage de frein à tambour (10) comprenant un tambour rotatif comportant une surface radiale intérieure de freinage et un patin de frein (11) construit en une seule pièce et de forme généralement circulaire monté dans le tambour sur une contre-plaque (12). Le patin de frein (11) comporte une face extérieure radiale (18) et une garniture de friction (16,17) montée dessus et faisant face à la surface radiale intérieure de freinage. Un vérin (13), permet un serrage et un desserrage du frein et il permet, lors de son actionnement, d'écarter diamétralement le patin de frein (11). Des moyens de positionnement (21) servent à positionner le patin de frein (11) à l'intérieur du tambour lorsque le vérin (13) est en position de desserrage afin d'assurer un dégagement complet entre la face extérieure (18) de la garniture de friction (16, 17) et la surface intérieure de freinage du tambour. L'invention concerne aussi un gabarit de rectification destiné à rectifier la garniture de friction ainsi qu'un assemblage de frein comportant des moyens de connexion du patin de frein à la contre-plaque.
Bosch Chassis Systems Australia Pty Ltd
Pbr Australia Pty. Ltd.
Sim & Mcburney
LandOfFree
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