公开(公告)号：US11298764B2

公开(公告)日：2022-04-12

申请号：US16915222

申请日：2020-06-29

申请人： DURQ MACHINERY CORP.

发明人： Chia-Sheng Liu ,  Yi-Li Cheng ,  Wen-Hung Lo

IPC分类号： B23D45/16 ,  B23D59/00 ,  G02B17/04 ,  B27G19/04

摘要： A circular saw includes a housing, a sawing assembly including a motor and a saw blade located at two opposite sides of the housing and connected together so that the saw blasé can be driven by the motor to saw the workpiece and a saw blade shield secured to the housing and covering a part of the saw blade to prevent the saw blade from cutting the surrounding people, and a prism assembly including a protective cover affixed to the front end of the saw blade shield and a prism located in the protective cover to reflect the image of the saw blade sawing the workpiece through a window of the protective cover to the line of sight of the operator. In this way, the operator can clearly confirm whether the sawing path is skewed with the normal operating posture to improve the efficiency.