Patent ID: 6038947
Filing Date: 2000-03-21
Classification: B23B,Y10T

Abstract:
A quick return device for a tool feed mechanism comprising:a tool holder;a rotary feed screw threadedly connected to the tool holder, the rotary feed screw configured to drive the tool holder in feed and return directions when the feed screw is rotated;a pivotally mounted actuator input device and a one-way drive device connected to the actuator input device, the one-way drive device configured to transmit rotary input motion from the actuator input device to the feed screw in a single direction only while preventing reverse rotation of the feed screw in the opposite direction;a releasable coupling between the one-way drive device and the feed screw enabling the one-way drive device to be uncoupled from the feed screw and the feed screw to be independently rotated relative to the one-way drive device when uncoupled therefrom.