Patent Number: 6,945,719

Title: Cam action shaft lock device and method

Abstract: A method and device for locking and unlocking a print head assembly along a shaft in an addressing machine. The print head assembly is fixedly mounted on a locking mechanism, which comprises a cylindrical body slideably mounted on the shaft and a cam ring rotatably mounted over the cylindrical body. The cylindrical body has a slot for seating an elongated spline. When the locking mechanism is operated in a locking position, the inner circumference of the cam ring presses the spline against the shaft, preventing the cylindrical body from moving along the shaft. The cam ring has a relief on its inner circumference such that, when the cam ring is rotated to the unlocked position, the spline is partially seated in the relief, thereby reducing the pressure exerted by the spline against the shaft. As such, the position of the print head assembly can be adjusted.

Inventors: Hurd; Bruce E (Monroe, CT)

Assignee: Pitney Bowes Inc.

International Classification: B41J 11/00 (20060101); B41J 3/54 (20060101); G07B 17/00 (20060101); B41J 029/56 ()

Expiration Date: 09/20/2022