Safety device against overloads, applicable to fixed and mobile crane, operating according to the principle of the swinging lever

• 1. 操作移动式起重机的方法与装置以及移动式起重机 [P] . 中国专利： CN106715317B . 2019.10.18
• 2. 操作移动式起重机的方法与装置以及移动式起重机 [P] . 中国专利： CN106715317A . 2017-05-24
• 3. Safety device against overloads, applicable in particular to mobile crane [P] . 法国专利： FR1319719A . 1963-03-01

  机译： 防止过载的安全装置，特别适用于移动式起重机

• 4. Safety device against overloads applicable to the crane jib [P] . 法国专利： FR1168375A . 1958-12-08

  机译： 适用于起重机悬臂的过载保护装置

• 5. Automobile door lock with child safety device has manual operating device for child safety lever displaced against return spring bias for successive activation and release of child safety device [P] . 德国专利： DE29924856U1 . 2006-03-30

  机译： 具有儿童安全装置的汽车门锁具有手动操作装置，用于使儿童安全杆克服复位弹簧偏压而移位，以便连续激活和释放儿童安全装置

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• 5. Evaluation of Load-Indicating Devices (LIDS) for Mobile Construction Cranes. [R] . rosenfield, myer j. wendler,bruce h. 1976

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