| 摘要 |
An anti-explosion spare wheel within a tire includes an elastic outer circle (9) and an inner circle (8) supporting the elastic outer circle (9), and both of them are disposed between the tire and the hub (1). The said elastic outer circle (9) and the said inner circle (8j are withdrawn between the tire and the hub (1) due to the normal air pressure in the tire. There is a space formed between the elastic outer circle (9) and the inner wall of the tire so that the inner wall of the tire doesn't contact with the outer circle (9). There is a safe space used to prevent excess pressure in the tire formed between the outer circle (9) and the hub (1).When the tire is punctured, the said elastic outer circle (9) jumps quickly and supports the weight of the vehicle under the supporting of the inner circle (8j, so as to maintains the vehicle running evenly. |
