Pneumatically actuatable disk brake

Details Pneumatically actuatable disk brake Pneumatically actuatable disk brake

F - Mech Eng,Light,Heat,Weapons

16

D

F16D 65/18 (2006.01)

Patent

CA 2733045

A pneumatically actuable disk brake, having a brake caliper which engages over a brake disk, having brake linings which can be pressed against the brake disk at both sides and of which a brake-application-side brake lining can be actuated by means of a brake lever, which is pivotable about an eccentric axis, of a brake application device, against the end side of which brake lever bears a brake ram which is connected at the other side to the brake-application-side brake lining or to a guide plate which is connected thereto, two pressure rams which are aligned in the same direction as and arranged spaced apart from the brake ram and which are connected in each case to the brake caliper and to the brake lining or to the guide plate, and a self-energizing device, is designed such that the brake caliper has spherical-cap-shaped bearing receptacles in which rest corresponding plain bearing elements, by means of which the brake lever, and the pressure rams with their side facing away from the brake lining, are supported on the brake caliper.

L'invention concerne un frein à disque actionnable pneumatiquement, avec un étrier de frein (1) enjambant un disque de frein, des garnitures de frein (2) pouvant être appliquées de chaque côté contre le disque de frein, dont la garniture côté application de la force peut être actionnée à l'aide d'un levier de frein (5) pivotant autour d'un axe excentrique d'un dispositif de serrage contre lequel repose un piston de frein (6) par sa face et qui d'autre part est relié à la garniture de frein (2) côté application de la force ou à une plaque de guidage (9) qui lui est reliée, avec deux pistons de compression (4) orientés dans la même direction que le piston de frein (5) et écartés de celui-ci qui sont reliés à l'étrier de frein (1) et à la garniture de frein (2) ou à la plaque de guidage (9), ainsi qu'avec un dispositif d'auto-amplification. L'étrier de frein (1) possède des logements de palier (13, 15) en forme de calotte dans lesquels sont insérés des éléments de palier lisse (14, 16) qui y sont adaptés, grâce auxquels le piston de frein (5) et les pistons de compression (4) s'appuient sur l'étrier de frein (1) par leur extrémité opposée à la garniture de frein (2).

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