Patent ID: 6817611
Filing Date: 2004-11-16
Classification: B65H

Abstract:
A nip mechanism for a substrate transfer system, comprising:a first nip roller; a second nip roller located substantially vertically above the first nip roller; and a drive motor for driving the first nip roller and the second nip roller to feed a substrate between the first nip roller and the second nip roller when the drive motor is driven in a first direction, the second nip roller creating and maintaining a nip with the first nip roller due to a force of gravity without using a spring while the drive motor is driven in the first direction, and the drive motor engaging a one-way clutch for engaging a roller separation mechanism to raise and separate the second nip roller from the first nip roller when the drive motor is driven in a second direction, the first and second nip rollers maintaining substantial vertical alignment with one another when the drive motor is driven in either direction.