Patent ID: 7406902
Filing Date: 2008-08-05
Classification: B23D,Y10T

Abstract:
1. A table saw comprising: a table adapted to support a workpiece, a saw unit disposed above the table and pivotable with respect to the table about a pivotal axis, the saw unit comprising a saw blade, a motor housing and a blade case covering an uppermost portion of the saw blade, the blade case having a rear portion defined closest to the pivotal axis and a front portion defined farthest from the pivotal axis, a battery-driven motor disposed within the motor housing and adapted to rotatably drive the saw blade, a battery mounting device disposed at the rear portion of the blade case and a rechargeable battery detachably mounted within the battery mounting device, wherein the rechargeable battery is disposed above the pivotal axis, the battery mounting device is disposed such that when the saw unit is in an uppermost vertical pivot position, the battery center of gravity is positioned on one side of a vertical plane extending through the pivotal axis while the saw unit center of gravity is positioned on the other side of the vertical plane, and such that when the saw unit is in a lowermost vertical pivot position, the battery center of gravity is positioned substantially within the vertical plane.