| 摘要 |
A deceleration mechanism comprises a driving wheel, a driven wheel of a diameter exceeding that of the driving wheel, a transmission member coiling around the driving wheel and the driven wheel; and a tension assembly fixed to the driven wheel. The transmission member coils around the driving wheel, criss-crosses, and coils around the driven wheel. The tension assembly is arranged between the transmission member and the driven wheel and elastically resists the transmission member and the driven wheel.
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