Patent ID: 7328778

Claim:
A wheel brake for braking a wheel, the wheel brake comprising: a pair of brake shoes, each of the brake shoes including an elongate member with a first surface, a second surface opposite to the first surface, and an opening extending from the first surface to the second surface, the first surface being for facing a corresponding side of the wheel; a brake pad attached to the first surface of the elongate member of each of the brake shoes; a pair of mounting members on the second surface of the elongate member of each of the brake shoes, the mounting members being on opposite sides of the opening; a mounting bar extending between the pair of mounting members of each of the brake shoes; a brake pad guide roller disposed in a central location on each of the brake shoes, the brake pad guide roller maintaining the brake pad parallel to the corresponding side of the wheel, and the brake pad guide roller having a rotational axis parallel to the corresponding side of the wheel; a spring biasing the brake pad guide roller of each of the brake shoes to project through the opening and beyond the brake pad; and a braking force generator operatively connected to the brake shoes.