Patent ID: 6543973
Filing Date: 2003-04-08
Classification: B23Q,Y10T

Abstract:
An automatically retractable stop apparatus for positioning a part to be machined on a machine platform, which platform carries a vise for holding the part in place on the platform, said stop apparatus comprising:a base that is attachable to a selected location on the machine platform; a retractable stop component pivotably mounted to the base via attachment to a pivot axle that is rotatably interengaged with a bearing in said base for alternating between an extended position where said stop component is engageable by the part to position the part on the platform, and a retracted condition wherein the stop component is disengaged from the part such that the part may be machined without interference from said stop component; and a spring interconnected between said base and said stop component for urging said stop component into said retracted position and permitting said stop component to be urged manually into said extended position.