Juan Pablo DAmico,Mario Omar Tesouro,Angel Romito,Marcos Andres Roba
申请号：
US13441758
公开号：
US08807057B2
申请日:
2012.04.06
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The movement along the ground in seed and fertilizer distribution systems of seeder and fertilizer machines is improved by a load transfer device comprising a deformable parallelogram-shaped structure attached to the machine tool holder bar at one end and to the distribution system at the other end, and a transfer rack that articulates in one of the parallelogram vertexes acting as a rocker arm. The rocker arm is connected at one end to the parallelogram and at the other end to at least one spring through a lever arm that extends downwardly and divergently, generating a crossing angle between the parallelogram lower un upper sides, creating a torque that varies not only for the spring tension by also for the ratio of the effective lengths of the involved lever arms.
