| 摘要 |
A time difference safety brake (100) comprises a first bearing type braking mechanism (1) and a second bearing type braking mechanism (2). The first bearing type braking mechanism (1) comprises a first bearing member (11), a first cushion sliding member (12) and a first brake pulling member (13). The first bearing type braking mechanism (1) rotates from a first start position (P1) as a result of pulling of the first brake pulling member (13). The second bearing type braking mechanism (2) comprises a second bearing member (21), a second cushion sliding member (22) and a second brake pulling member (23). The second bearing type braking mechanism (2) rotates from a second start position (P1) as a result of pulling of the second brake pulling member (23) to implement brake. The first cushion sliding member (12) and the second cushion sliding member (22) slide relative to each other and there is a sliding cushion space therebetween, so that the first cushion sliding member (12) rotates and slides to an end lock (S1) of the sliding cushion space as a result of the pulling, thereby braking through the lock. |
