Patent ID: 6478060
Filing Date: 2002-11-12
Classification: B23Q,B27C

Abstract:
A wood planing machine for cutting a workpiece, the workpiece having a flat surface, said wood planing machine comprising:a machine bed having a workpiece-supporting surface that is adapted to support the workpiece; an elongated cutter journalled on and projecting upward from said workpiece-supporting surface of said bed; a workpiece-guiding plate disposed on said bed behind said workpiece-supporting surface of said bed and having a rear side and a flat front surface that is disposed adjacent to said cutter and that is adapted to permit abutment and sliding movement of the flat surface of the workpiece thereon when pushing the workpiece in a workpiece-feeding direction for cutting the workpiece; a fixed base disposed fixedly on said bed and located behind said plate; a movable seat disposed movably on said base and movable on said base in a seat-moving direction transverse to said workpiece-feeding direction; a pair of first and second fixing blocks disposed respectively and fixedly on two opposite sides of said seat, each of said first and second fixing blocks having a flat outer side surface; a pair of first and second coupling blocks mounted fixedly on said rear side of said plate and aligned respectively with said first and second fixing blocks along said seat-moving direction, each of said first and second coupling blocks having a flat outer side surface; a driving unit including a fixed shaft having a pair of first and second end portions that are connected respectively and fixedly to said first and second fixing blocks, a rotatable shaft having a pair of first and second end portions that are connected respectively and fixedly to said first and second coupling blocks, a first link having two ends that are sleeved respectively and rotatably on said first end portions of said fixed shaft and said rotatable shaft, a hole that is formed through said first link and that is disposed between said two ends of said first link, and a flat inner side surface that presses against said outer side surfaces of said first fixing block and said first coupling block, and a second link having two ends that are sleeved respectively and rotatably on said second end portions of said fixed shaft and said rotatable shaft, a hole that is formed through said second link and that is disposed between said two ends of said second link, and a flat inner side surface that presses against said outer side surfaces of said second fixing block and said second coupling block so as to clamp said first and second fixing blocks and said first and second coupling blocks between said first and second links, thereby locking said plate relative to said movable seat; and a control rod assembly extending through said holes in said first and second links and rotatable in a first direction to move said first and second links away from each other so as to release said first and second fixing blocks and said first and second coupling blocks from said first and second links, thereby permitting rotation of said rotatable shaft and said plate about said fixed shaft so as to adjust angle of said front surface of said plate with respect to said bed, said control rod assembly being rotatable in an opposite second direction when angle adjustment of said plate is completed, so as to move said first and second links toward each other, thereby clamping said first and second fixing blocks and said first and second coupling blocks between said first and second links.