Patent ID: 7997312
Filing Date: 2011-08-16
Classification: B27C

Abstract:
1. A positioning device for positioning a workpiece relative to a router, the router including a router collet to be positioned beneath a router table and a router fence along which the workpiece can be guided during the machining thereof, the router collet constructed and arranged to engage a router bit extending through an opening in the router table for machining the workpiece, the positioning device comprising: a housing provided with an engagement element that is constructed and arranged to engage the router collet, thereby positioning the housing relative to the router collet; a pointer element for indicating a position for the router fence to be placed; and a displacement mechanism for displacing the pointer element relative to the housing; a measurement mechanism for measuring a dimension of the workpiece, wherein the measurement mechanism comprises a fixed element and a moveable element, both elements being arranged to hold the workpiece in between the faces of the fixed element and the movable element and wherein the dimension to be measured is the distance between the face of the fixed element and the face of the moveable element; wherein the measurement mechanism is part of the displacement mechanism and wherein the movable element is provided with a first sliding element guided in the housing; wherein the displacement mechanism comprises a second sliding element provided with the pointer element, and the displacement mechanism is configured to displace the pointer element depending on the measured dimension by means of a transmission for transmitting the displacement of the first sliding element to the second sliding element in a predetermined transmission ratio.