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Driving system for industrial trucks

  • US 6,543,311 B1
  • Filed: 11/16/2000
  • Issued: 04/08/2003
  • Est. Priority Date: 11/17/1999
  • Status: Active Grant
First Claim
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1. A driving system for an industrial truck, comprising:

  • a combustion engine (1);

    a two-branch ear transmission (14) having an input coupled with the shaft of the combustion engine (1) and having outputs coupled to a main shaft (15) and a secondary shaft (16a), the shafts being at a fixed speed ratio relative to each other;

    a coupling-free adjustable electrical or mechanical transmission (2) in the secondary shaft, having a speed ratio continuously adjustable;

    a collecting transmission (5) having inputs coupled to the main shaft and the secondary shaft such that the speed of these shafts are summed and the speed of the output shaft can be changed between zero and a maximum speed;

    a change-over transmission (13) to change the rotational sense upon the change from forward to rearward driving and vice versa, the change-over transmission being designed such that it can be shifted under load; and

    the connection of the combustion engine with the wheels to be driven is free of any clutches.

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