GB850226A - Improvements in or relating to motor cycle wheels and the like - Google Patents

Abstract

850,226. Wheel hubs; internal shoe-drum brakes. TRIUMPH ENGINEERING CO. Ltd. May 27, 1957 [July 21, 1956], No. 22648/56. Classes 103 (1) and 144 (1). A motor cycle wheel hub comprises a radially outer cylinder 1 which anchors the spokes 6, 7, supported coaxially on a radially inner cylinder 14, which receives the wheel spindle 16, by means of two separate annular dished or conical pressings 17, 18, the outer peripheries of which are connected, as by riveting, to opposite sides of a radially inwardly directed flange 12 of the outer cylinder and the inner peripheries 19, 21 of which are connected respectively, as by welding, to adjacent the ends of the inner cylinder 14. As shown the inner cylinder 14 houses bearings 15 for the spindle 16, and the outer cylinder 1 is externally ribbed for strength or for cooling purposes. The spokes 6, 7 are straight and anchored in holes 5 in slightly inclined flanges 8, 9 of the outer cylinder, but in an alternative arrangement bent spokes are anchored to radial flanges of the outer cylinder. One face of the hub is closed by an annular disc 31 having lipped inner and outer peripheries which spring respectively on to the inner cylinder 19 and a radial end flange 9 of the outer cylinder 1. The side of the cylinder 1 remote from the cover disc 31 provides a brake drum for an internal shoe brake, the shoes 11 of which are carried on a brake plate 23 and operated through a lever 29. The brake plate 23 is secured on the spindle 16 by a nut 28 and is held against rotation by engagement of a lug 24, on the wheel mounting fork 25, between ears 26 on the plate 23. The outer periphery 30 of the brake plate 23 is axially flanged to overlie the adjacent radial end flange 8 of the outer cylinder 1.