Drive assembly with dynamic tensioning device

Details Drive assembly with dynamic tensioning device Drive assembly with dynamic tensioning device

2006-07-18

2006-07-18

Johnson, Vicky A. (Department: 3682)

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Pulley or guide roll has eccentric mount for shifting or...

C049S360000

Reexamination Certificate

active

07077773

ABSTRACT:
A drive assembly for a closed loop cable system in which a flexible driver member drives a door or the like back and forth has the flexible drive member wrapped around and driven by a drive pulley. The drive assembly includes a motor unit having a motor shaft that rotates about a drive axis for rotating the drive pulley about a pulley axis, and a tensioning mechanism for adjusting the position of the pulley axis with respect to the drive axis responsive to tension in the flexible drive member.

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