Patent ID: 7392830

Claim:
A micro-adjusting device for an angle stop plank of a planer comprising: a wood conveying table, said wood conveying table connected with a holding frame and said holding frame connected with a stop plank, said stop plank positioned at one side on a top side of said wood conveying table for positioning a wood material, and further comprising: a hand wheel unit composed of a hand wheel and a worm, said worm actuated by said hand wheel to rotate, and said worm being inserted in said holding frame; a transmission rod inserted in said holding frame, said transmission rod having one end formed with a worm wheel, said worm wheel meshed with said worm of said hand wheel unit, said transmission rod having the other end formed with a transmission gear; an upper connecting rod having its front end pivotally connected with a rear wall of said stop plank, said upper connecting rod having its rear end formed with a guiding groove, said guiding groove having its upper edge provided with multiple teeth, said multiple teeth meshed with said transmission gear of said transmission rod; a lower connecting rod having its rear end pivotally connected with said holding frame, said lower connecting rod having its front end pivotally connected with said stop plank; and said hand wheel adapted to be turned to actuate said upper connecting rod to move back and forth relative to said worm, said upper connecting rod pulling or pushing said stop plank, said stop plank able to be freely adjusted and positioned at a required angle by turning fulcrums respectively formed by the front and the rear end pivotal connections of said lower connecting rod.