Patent ID: 7730915
Filing Date: 2010-06-08
Classification: B23D,Y10T

Abstract:
1. An elevating device for a worktable of a manual planer comprising: a base; a movable worktable slidably assembled at one end of said base; said elevating device comprises of a driving shaft, a driven shaft, a rotary base, a connecting rod base, an assembly rod, and a spindle; said driving shaft axially and pivotally inserted in said base; said driving shaft being fixed with an operating member at one end corresponding to said base; said driving shaft being provided with a driving gear at one side opposite to said operating member; said driven shaft vertically intersecting with said driving shaft; said driven shaft being disposed with a first driven gear at one side corresponding to said driving gear of said driving shaft and a second driving gear at another side of said driven shaft; said rotary base being provided with a second driven gear to match with said second driving gear of said driven shaft; said connecting rod base being secured at a rear side of said rotary base by said assembly rod; said spindle axially being inserted through said rotary base and being fixed in said connecting rod base; said operating member of said driving shaft being operated to let said driving gear driving said first driven gear of said driven shaft to rotate; said second driving gear of said driven shaft being rotated to actuate said second driven gear of said rotary base to rotate; said rotary base with said spindle acting as a pivot and being actuated to carry out relative rotation and to actuate said connecting rod base to operate; and said movable worktable on said connecting rod base being actuated to move upward or downward together with said connecting rod base.