Bit for both router and chamfering operations

Abstract

The present invention relates to a bit for both router and chamfering operations, the bit comprising: a cylindrical bit body; a cutting edge unit for a router operation, the cutting edge unit including an inwardly tapered first cutting edge extending in the axial direction from the bit body, a second cutting edge extending in the axial direction from the first cutting edge, and a third cutting edge that tapers outward from the second cutting edge portion; and a chamfering cutting edge for a chamfering operation, the chamfering cutting edge being formed from the third cutting edge in a direction perpendicular to the axis.

Description

Bit for both routing and chamfering

[0001] The present invention relates to a bit for both router and chamfering operations, and more specifically, to a bit for both router and chamfering operations that solves the side machining and top surface machining of a workpiece with a single tool.

[0002] A router is a machine that performs machining operations such as carving, chamfering, and cutting on a workpiece by mounting a bit on a high-speed rotating spindle.

[0003] For example, to produce a cutting board by hand, the process proceeds in the order of wood drying, sawing, planing, tracing, thickness adjustment, routing, and sanding; among these steps, the routing process involves a bit rotating at high speed to cut the edges of the cutting board and shape it into a rounded form.

[0004] Generally, bits mounted on a router are classified into round-over bits, core box bits, cove bits, rabbit bits, dovetail bits, chamfer bits, etc., depending on the processing area or shape of the workpiece.

[0005] However, although various side shapes of the workpiece can be machined with a single bit, there is an inconvenient problem of having to change tools because a different tool must be used to machine the flat surface of the workpiece using this bit.

[0006] Therefore, the objective of the present invention is to provide a bit for both router and chamfering operations that can perform router operations for processing the side of a workpiece and chamfering operations for processing a flat surface with a single tool.

[0007] A bit for both router and chamfering work according to the present invention for achieving the above objective comprises: a cylindrical bit body; a blade part for router work including a first blade formed with a narrowing inward slope extending axially from the bit body, a second blade formed extending axially from the first blade, and a third blade formed with an outward slope extending from the second blade part; and a chamfering blade for chamfering work formed in a direction perpendicular to the axis from the third blade. Since the side of a workpiece can be processed to form a shape using the first blade, the second blade, and the third blade, and the top surface of the workpiece can be processed to form a flat shape using the chamfering blade, the user can perform router and chamfering work with a single tool without changing tools, thereby improving user convenience and workability.

[0008] Here, the blade portion is preferably composed of a pair arranged offset from each other in opposing areas, so that when the chamfer blade is offset and the upper surface of the workpiece is processed, the load is divided compared to a straight line operation, which can improve the efficiency of the chamfer operation.

[0009] Furthermore, the bit body further comprises a mounting portion for mounting and fixing the blade portion; and a fixing portion for fixing the blade portion mounted on the mounting portion. It is preferable that the blade portion is composed of a blade member for mounting on the mounting portion, so that the blade member can be mounted and detached from the bit body, thereby enabling various processing of the workpiece.

[0010] Furthermore, it is preferable that the blade portion comprises a first blade member having the shape of a first blade; a second blade member having the shape of a second blade fixedly coupled to the first blade member; and a third blade member having the shape of a third blade fixedly coupled to the second blade member, so that side processing of various shapes and various angles of the workpiece can be performed.

[0011] Here, the first blade member and the third blade member are composed of a plurality of members having a plurality of inward slopes and a plurality of outward slopes, and the second blade member is composed of a plurality of members having a plurality of extended lengths, so that the side angles of the workpiece can be processed in various ways and processing can be performed on various thicknesses of the workpiece, which is preferable.

[0012] According to the present invention, the side of a workpiece can be processed to form a shape using the first blade, the second blade, and the third blade, and the top surface of the workpiece can be processed to form a flat shape using the chamfer blade, so the user can perform router work and chamfer work with a single tool without changing tools, thereby improving user convenience and workability.

[0013] In addition, when the chamfer blades are offset to process the upper surface of the workpiece, the load is distributed compared to a straight line operation, so the efficiency of the chamfer operation can be improved.

[0014] In addition, since the blade component can be attached to and detached from the bit body, it has the effect of enabling various processing of the workpiece.

[0015] In addition, it has the effect of enabling side processing of the workpiece at various shapes and angles.

[0016] In addition, it is possible to process the side angles of the workpiece in various ways, and it is effective to enable processing for various thicknesses of the workpiece.

[0017] FIG. 1 is a perspective view of a bit for both router and chamfering work according to the present invention.

[0018] Figure 2 is an operation diagram in which the blade part is mounted to the mounting part of the bit body.

[0019] FIG. 3 is an exploded view of the bit body, the first blade member, the second blade member, and the third blade member.

[0020] Figure 4 is an example of various shapes of the blade portion.

[0021] FIG. 5 is an example of various shapes of the first blade, the second blade, and the third blade.

[0022] Hereinafter, a bit (1) for both router and chamfering work according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0023] FIG. 1 is a perspective view of a bit (1) for both router and chamfering work according to the present invention, FIG. 2 is an operation view in which a blade portion (20) is mounted on a mounting portion (11) of a bit body (10), FIG. 3 is an exploded view of a bit body (10), a first blade member (24), a second blade member (25), and a third blade member (26), FIG. 4 is an example of various shapes of the blade portion (20), and FIG. 5 is an example of various shapes of the first blade (21), the second blade (22), and the third blade (23).

[0024] Referring to FIGS. 1 to 5, the configuration of a bit (1) for both router and chamfering operations will be explained.

[0025] A bit (1) for both router and chamfering work includes a bit body (10), a blade part (20), and a chamfer blade (30).

[0026] The bit body (10) is cylindrical in shape. The bit body (10) includes a mounting part (11) and a fixing part (12).

[0027] The mounting part (11) can be configured so that the blade part (20) is inserted and fixed in place.

[0028] The fixing part (12) can fix the blade part (20) mounted on the mounting part (11). The fixing part (12) includes a fixing hole (121) and a fixing member (122).

[0029] The fixing hole (121) is formed in the bit body (10) and connected to the mounting part (11).

[0030] The fixing member (122) is inserted into the fixing hole (121) and fixes the blade part (20) mounted on the mounting part (11).

[0031] The blade portion (20) may consist of a pair of blades arranged offset from each other in opposing areas. The blade portion (20) may consist of blade members (24, 25, 26) for mounting on the mounting portion (11). The blade portion (20) includes a first blade (21), a second blade (22), a third blade (23), a first blade member (24), a second blade member (25), and a third blade member (26).

[0032] The first blade (21) extends axially from the bit body (10) and is formed with a narrowing inward slope.

[0033] The second blade (22) is formed by extending axially from the first blade (21).

[0034] The third blade (23) is formed with an outward slope extending from the second blade portion (22).

[0035] The first blade member (24) may have the shape of the first blade (21). The first blade member (24) may be composed of a plurality of members having a plurality of inward slopes and a plurality of outward slopes. The first blade member (24) includes a first connecting part (241).

[0036] The first connecting part (241) is formed so that the second blade member (25) is connected to the first blade member (24). The first connecting part (241) may be formed with female screw threads.

[0037] The second blade member (25) may be in the shape of a second blade (22) that is fixedly coupled to the first blade member (24). The second blade member (25) may be composed of a plurality of members having a plurality of extended lengths. The second blade member (25) includes a second coupling part (251).

[0038] The second connecting part (251) is formed on one side of the second blade member (25) and may be formed as a male screw thread that is inserted into and connected to the first connecting part (241). The second connecting part (251) is formed on the other side of the second blade member (25) and may be formed as a female screw thread. The second connecting part (251) may be formed on both the one side and the other side of the second blade member (25).

[0039] The third blade member (26) may have the shape of a third blade (23) that is fixedly coupled to the second blade member (22). The third blade member (26) may be composed of a plurality of members having a plurality of inward slopes and a plurality of outward slopes. It includes a third coupling part (261).

[0040] The third connecting part (261) may be formed with a male screw thread that is connected to the second connecting part (251) formed on the other side of the second blade member (25).

[0041] The chamfer blade (30) is for chamfering work formed in a direction perpendicular to the axis from the third blade (23). The chamfer blade (30) may consist of a pair arranged offset from each other in opposing areas.

[0042] FIG. 2 is an operation diagram in which the blade portion (20) is mounted on the mounting portion (11) of the bit body (10).

[0043] FIG. 2 (a) is a plan view showing that the mounting portion (11) of the bit body (10) is open to the right, and a fixing member (122) is inserted into the fixing hole (121). A blade portion (20) is positioned on the right side.

[0044] Fig. 2 (b) shows that the mounting part (11) of the bit body (10) is positioned on the left side, and the blade part (20) and the chamfer blade (30) are positioned on the right side.

[0045] FIG. 3 is an exploded view of the bit body (10), the first blade member (24), the second blade member (25) and the third blade member (26).

[0046] A mounting portion (11) of the bit body (10) is positioned on the left side, and the first blade member (24), the second blade member (25), and the third blade member (26) are separated on the right side. A first coupling portion (241) is formed on the right side of the first blade member (24), a second coupling portion (251) is formed on the left and right sides of the second blade member (25), and a third coupling portion (261) is formed on the left side of the third blade member (26).

[0047] FIG. 4 is an example of various shapes of the blade portion (20), and FIG. 5 is an example of various shapes of the first blade (21), the second blade (22), and the third blade (23).

[0048] Modifiable embodiments other than the above embodiments are described.

[0049] A large chamfered blade can be formed by extending from the end region of the third blade and the third blade member. The angle of the chamfered blade can be obtuse.

[0050] It further includes a scatter prevention part formed by protruding and extending from an area having a gap from the tip of the chamfer blade, and can prevent processing debris and crushing debris of the workpiece from scattering to the worker.

[0051] The chamfer blade of the third blade member can be made to have various shapes.

[0052] With the above-described bit (1) for both router and chamfering operations, the side of the workpiece can be processed to form a shape using the first blade, the second blade, and the third blade, and the top surface of the workpiece can be processed to form a flat shape using the chamfering blade, so the user can perform router and chamfering operations with a single tool without changing tools, thereby improving user convenience and workability.

[0053] In addition, when the chamfer blades are offset to process the upper surface of the workpiece, the load is distributed compared to a straight line operation, so the efficiency of the chamfer operation can be improved.

[0054] In addition, since the blade member can be attached to and detached from the bit body, various processing operations can be performed on the workpiece.

[0055] In addition, it is possible to perform side machining of the workpiece at various shapes and angles.

[0056] In addition, the side angles of the workpiece can be processed in various ways, and processing can be performed on the workpiece for various thicknesses.

Claims

1. Regarding bits for both routing and chamfering, Cylindrical bit body; A blade portion for router operation comprising: a first blade formed with a narrowing inward slope extending axially from the bit body; a second blade formed by extending axially from the first blade; and a third blade formed with an outward slope extending from the second blade portion; and A bit for both router and chamfering operations, characterized by including a chamfer blade for chamfering operations formed in a direction orthogonal to the axis from the third blade.

2. In Paragraph 1, A bit for both router and chamfering operations, characterized in that the blade portions are composed of a pair arranged offset from each other in opposing areas.

3. In Paragraph 1, The above bit body is, A mounting part for mounting and fixing the above blade part; and A bit for both router and chamfering operations, characterized by further including a fixing part for fixing the blade part mounted on the mounting part.

4. In Paragraph 3, A bit for both router and chamfering operations, characterized in that the blade portion is formed of a blade member for mounting on the mounting portion.

5. In Paragraph 1, The above blade portion is, The first blade member having the shape of the first blade above; A second blade member having the shape of a second blade that is fixedly coupled to the first blade member; and A bit for both router and chamfering operations, characterized by being formed of a third blade member having the shape of a third blade that is fixedly coupled to the second blade member.

6. In Paragraph 1, A bit for combined router and chamfering operations, characterized in that the first blade member and the third blade member are composed of a plurality of members having a plurality of inward slopes and a plurality of outward slopes, and the second blade member is composed of a plurality of members having a plurality of extended lengths.

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