초록 ▼

Mechanical control carried by a floating caliper 3 with friction pads 9a, 9b around a brake disc 1. A system A of drum cams 16-17 with four helicoidal inclined faces joined in pairs to transform a rotation movement of a control lever 11 into a translation movement imparted to friction pads 9a, 9b so

Mechanical control carried by a floating caliper 3 with friction pads 9a, 9b around a brake disc 1. A system A of drum cams 16-17 with four helicoidal inclined faces joined in pairs to transform a rotation movement of a control lever 11 into a translation movement imparted to friction pads 9a, 9b so that they clamp on disc 1. The drum cams make it possible to transform and amplify the rotation drive movement imparted by the control lever. Application to heavy vehicles, tractors, road equipment, etc.

대표청구항 ▼

A disc brake control mechanism for a brake disc, said mechanism comprising a floating caliper, said caliper comprising a stationary shoe, including a friction pad facing one face of the disc, a mobile shoe carrying a friction pad facing the other disc face, an articulated drive lever, driving means

A disc brake control mechanism for a brake disc, said mechanism comprising a floating caliper, said caliper comprising a stationary shoe, including a friction pad facing one face of the disc, a mobile shoe carrying a friction pad facing the other disc face, an articulated drive lever, driving means including opposed helicoidal inclined faces operatively coupled to said articulated drive lever for moving at least said mobile shoe friction pad relative to the disc to effect braking, helicoidal needle thrust bearings interposed between said helicoidal inclined faces, and an automatic wear compensation system for said driving means, the improvement wherein said driving means comprises three drum cams defining four paired helicoidal inclined faces, one of said cams being operatively coupled to one of said friction pads by said automatic wear compensation system such that the four paired helicoidal inclined faces function to amplify the axial travel of said brake pads without an increase in pitch of the helicoidal surfaces or the angle of rotation of said lever while permitting the mechanism to be arbitrarily employed as an operating mechanism for a left or right brake of a vehicle.