Cutting bit unit

Description

Draw 8 The item that is the subject of the design Cutting bit unit Description of the design 1. The material is metal. 2. The present invention is used by being mounted on a drilling core bit that simultaneously performs drilling and core removal operations on a road surface to install a road marker or bollard. During the drilling operation, a circular groove corresponding to the diameter of the core bit is formed, and at this time, a circular column-shaped core of the workpiece that has not been removed remains inside the circular groove, and the invention is used for the purpose of removing this. 3. As illustrated in Reference Drawing 1, the present invention design has a cutting bit inserted into a coupling formed in a coupling plate, and is used by coupling it inside a core bit. 4. Drawing 1 is a drawing showing the overall shape of the present design, Drawing 2 is a drawing showing the front view, Drawing 3 is a drawing showing the rear view, Drawing 4 is a drawing showing the left side view, Drawing 5 is a drawing showing the right side view, Drawing 6 is a drawing showing the top view, Drawing 7 is a drawing showing the bottom view, Drawing 8 is a drawing showing the overall shape viewed from the rear view, Drawing 9 is a drawing showing the disassembled state of the present design, and reference drawings 1 represents the state in which the present invention design is combined with the core bit. Key points of the design creation The key point of the design creation is the combination of the shape and form of the "cutting bit unit."

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