Patent ID: 6336524
Filing Date: 2002-01-08
Classification: B60B,B62B,Y10T

Abstract:
A wheel assembly provided with a bracket (1), a wheel (5) which is mounted in the bracket (1) in such a manner that it can rotate about an axle (4), a brake member (7) which can move with respect to the wheel (5) and has a brake pin (8) provided with a screw thread, a displaceable brake disc (9) around the brake pin and provided with a complementary screw thread, and a locking disc (11) for fixing the position of the brake disc (9) along the screw thread,wherein the locking disc (11) comprises at least one pawl (12) which extends radially with respect to the brake pin and which is displaceable substantially in the axial direction of the brake pin (8) and which is secured against rotation around the brake pin (8), the brake disc having at least one radial slot (10) accommodating the pawl (12) in order to block rotation of the brake disc (9) along the axis of the brake pin (8), and wherein a spring member (16) acts on one of the locking disc (11) and the pawl (12) and pressing the said pawl (12) into the slot (10) in the brake disc (9).