Vehicle shoe drum brakes

A vehicle drum brake shoe comprising an arcuate shoe platform component and an arcuate carrier plate having rigidly attached thereto a correspondingly curved layer of friction material, said carrier plate having struck therefrom in the direction of its concave side a plurality of preformed projections, some of said projections defining tongues having axially extending portions which extend in the same direction and are spaced away from the concave side of said carrier plate substantially parallel thereto, a plurality of slots in said shoe platform each of a size to enable siad preformed projections including said tongues to be inserted into said openings when said carrier plate is moved radially into engagement with the convex face of the platform component, the spacing of the axially extending portions from the concave face of said carrier plate being such that the inner faces of the axially extending portions engage the concave surface of said platform component solely upon axial movement of said lining component following radial insertion of said projections into said slots, and retaining means comprising manually releasable clamping means between the shoe platform and the carrier plate for preventing separation of one from the other, at least some of said slots having opposed circumferential sides engaged by the corresponding edges of the projections therein to sustain separate from said retaining means the braking torque exerted on said friction material.