Patent ID: 7114538
Filing Date: 2006-10-03
Classification: B23Q,B27C,Y10T

Abstract:
1. A base plate apparatus for attachment to a router wherein the router has a router motor for rotation of a router bit by the router motor with the router motor being mounted in a router housing with an end plate for attachment to the base plate apparatus, the end plate having a plurality of fastening screw holes at predetermined positions thereon by which the end plate can be fastened by screws at right angles to the end plate and engaging into the screw holes; the base plate apparatus comprising: a plate member shaped and arranged to define an upper surface of the plate member with the upper surface arranged for contact with a workpiece; the plate member being arranged for attachment of the under side of the plate member to the end plate of the router housing; the plate member having a bit hole therethrough breaking out at a bit opening in the upper surface such that a router bit attached to the router extends through the bit hole through the plate member for engaging a workpiece in contact with the upper surface of the plate member so that the bit cuts a shape into the workpiece; the upper surface of the plate member being arranged such that movement between of the workpiece over the plate member causes sliding movement between the upper surface of the plate member and the workpiece while the upper surface remains in contact with the workpiece; the plate member having a plurality of plate holes at spaced positions around the bit hole; and a fastening system for fastening the end plate of the router housing to the plate member comprising: