Patent ID: 6868747
Filing Date: 2005-03-22
Classification: F16H,Y10T

Abstract:
1. A linear drive comprising: a toothed belt under load during the operation of the linear drive and said toothed belt including a first plurality of teeth having a specific pitch; direction-changing rollers for guiding said toothed belt in a pretensioned state thereon; a linear toothed counterpiece having a second plurality of teeth; said toothed belt being mounted so as to permit said first plurality of teeth to engage said second plurality of teeth over a predetermined engagement length; said pitch of the teeth of said toothed belt being up to 0.8% less than the pitch of the teeth of said toothed counterpiece when said toothed belt is in said pretensioned state and under said load; said toothed belt including tension reinforcement defining a plane; each of said teeth of said first plurality of teeth having a predetermined width and a flank which is perpendicular to or almost perpendicular to said plane; the teeth of said second plurality of teeth having a tooth gap width of approximately 20% to 80% wider than said predetermined width; and, said teeth of said toothed belt being configured to be elastic compared to the high stiffness of said tension reinforcement.