| 摘要 |
PURPOSE: A rotation preventing edge lock is provided to prevent the rotation of blocks together with coupling screws by forming guide grooves on slant surfaces of a main body to rectilinearly move guide protrusions of the blocks. CONSTITUTION: A rotation preventing edge lock includes blocks(14) mounted between a main body(12) and coupling screws and having a slant surface(15) to slide along slant surfaces(13) of the main body according to the rotation of the coupling screws, wherein each of the blocks is formed with guide protrusions(110) in parallel to the slant surfaces corresponding to a top surface, and the main body is formed with guide grooves(120) at a position corresponding to the guide protrusions for rectilinearly moving the guide protrusions. |
