| 摘要 |
1,244,209. Wheel cover discs. E. E. FOSTER. 22 Nov., 1968 [24 Nov., 1967], No. 55503/68. Heading B7C. A wheel cover comprises a plastics body, including a central hub portion and a plurality of ribs, and a split steel band attached to the body, the ends of the band being circumferentially separable by manually operable means, so that in its expanded condition the band is in tight frictional engagement with a radially inwardly facing axially annular surface on the wheel rim. In one embodiment, band 32 is attached to the body 12 by means of screws 44 extending through openings 46 in lugs 34, the movement of ends 36, 38 of the band being controlled by a threaded sleeve 66. This sleeve engages with a threaded stud portion 64 of a cam block 56 containing a diagonal slot 58, axial movement of this block thereby causing circumferential movement of a rivet 52 and consequently end 36, to which it is attached. The cam block is restricted to axial movement by rivets 60 extending between inner and outer walls 48, 50 of the U-shaped end of the band 32, and apertures 46d..46g and 62 are slotted to allow circumferential expansion of band 32, whose grip may be enhanced by the provision of protuberances on its radially outer surface. In a further embodiment (Figs. 8-11, not shown) the band has a continuous radially inwardly extending flange (80) containing apertures (82), some of which are slotted to allow circumferential expansion of the band when it is attached to the body member in a manner similar to that described above. In this embodiment a sleeve (102) engages with a stud (106) having an inclined end (108) which end is provided with a detent restricted to axial movement by a slot (114), axial movement of the sleeve thereby causing circumferential movement of an abutment attached to one end of the band. Another embodiment (Figs. 12- 22, not shown) has the circumferential movement of its band controlled by a cam block (142) engageable with the angled ends of the band. In this embodiment the band is attached to the body member by a bayonet-type fitting (Figs. 21, 22). In a final embodiment employing this cam block action (Figs. 23-27, not shown), the body portion has a notched axially extending flange (164) to which the band is connected by a single rivet. |
