| 摘要 |
A pneumatic tyre, for example for a golf trolley, comprises a plastics material circular sleeve 11 having a raised rim 15 centrally located on the inner circumference 12 of the tyre. Gripping members 18 are located on each side of the rim 15 and serve to grip the hub to which the tyre will be fitted. The tyre can be manufactured by rotational moulding, in which liquid plastics material is placed in a mould of two or three pieces, and the mould is rotated simultaneously about two axes at an increased temperature. The tyre would normally be made from a flexible plastics material to enable it to fit a variety of different hubs. <IMAGE> |
