| 摘要 |
PCT No. PCT/FR95/01588 Sec. 371 Date Aug. 1, 1997 Sec. 102(e) Date Aug. 1, 1997 PCT Filed Dec. 1, 1995 PCT Pub. No. WO96/16883 PCT Pub. Date Jun. 6, 1996Speed limiter for boxes or pallets for use in an a conveyor system having a tilted plane that includes at least one roller. The limiter includes a rotatable drum adapted to be pressed against a load, the load driving the rotatable drum, a speed-sensitive braking mechanism adapted to hinder the rotational movement of the rotatable drum, a shaft mounted coaxial to the drum, the drum and the braking mechanism being mounted about the shaft, and at least one bracket adapted to fixedly mount the shaft to a structure of the conveyor system. The bracket is adapted to elastically press the drum to the load, and has a predetermined degree of rotational movement such that the bracket may pivot about an axis transverse to the movement of the load. The bracket has an elastic device providing a first level of force and a first resistance to deformation of the bracket, and the elastic device also provides a second level of force and a second resistance to deformation of the bracket during braking of the drum, the second level of force increasing the contact force between the drum and the load. The second resistance is greater than the first resistance, and the bracket applies the second level of force up to a predetermined threshold.
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