GB829577A - Improvements in or relating to wheel rims - Google Patents

Abstract

829,577. Wheel rims. KELSEY-HAYES CO. Nov. 15, 1956 [Dec. 5, 1955], No. 35012/56. Class 144 (2). For use with a tubeless tyre, a split wheel rim comprises an endless rim base member 1 with a gutter 6 at one edge bounded by a base 10, a radial terminal wall 11, and an inclined wall 12, a detachable endless tyre retaining member 2 movable axially over the gutter and having a bead seating portion 13 the undersurface of which has a radially inwardly projecting rib 18 provided axially inwardly of a flaring axially outer portion 19 of said undersurface, a transversely split clamping ring 3 having a portion 23 engaged in the gutter 6 and dimensioned to provide wedging engagement with, and to flex, the flared portion 19 of the bead seat 13 and the gutter base 10, and a radially outwardly extending portion 24 providing an abutment for the radial surface 15 of the beadretaining flange 14 of the detachable member 2, and an endless resilient stretchable sealing ring 26 in sealing engagement with the gutter wall 12, the rib 18, the flared surface 19 and the axially inner surface 25 of the clamping ring portion 23. As shown in Fig. 1, the portion 23 of the clamping ring has a convex axially inner surface 25, the sealing ring 26 having a corresponding sectional shape. The transverse split 22, Fig. 2, in the clamping ring may comprise two parts spaced by a circumferential split 21. Fig. 3 shows an arrangement wherein the rib 18 is omitted, the undersurface of the detachable bead seat having an axially outwardly flared portion 29 overlying the inclined wall 37 of the rim base gutter 35, the sealing ring 36 and clamping ring 32 having mutually engaging radial surfaces. Reference has been directed by the Comptroller to Specification 744,085.