KR102621093B1 - Spherical processing tools for wood - Google Patents

Abstract

The present invention relates to a spherical processing tool for wood, which includes a spherical head portion with a plurality of polishing protrusions protruding from the surface; and a pillar part extending from the lower part of the head part and coupled to an electric drill, wherein the pillar part is formed with a tap screw that is fixed to a hand machine.

Description

Spherical processing tools for wood {SPHERICAL PROCESSING TOOLS FOR WOOD}

The present invention relates to a spherical processing tool for wood that is coupled to a hand machine such as a hand drill. More specifically, the present invention relates to a spherical processing tool for processing a curved surface or a hemispherical groove of wood using a plurality of polishing protrusions formed on a spherical head. This is about a spherical processing tool for wood.

In general, processing tools are used in combination with hand machine equipment such as hand drills or handpieces when performing metalworking or woodcraft work.

The tools used for these processing tools vary depending on various factors such as the material being processed, the shape to be processed, and the size of the workpiece, so various types of processing tools are available and selected and used according to the situation.

For example, in processing wood, there are polishing and cutting processes on the wood surface.

In particular, in order to perform groove processing and curved processing of wood, cutting and polishing operations must be performed sequentially, and accordingly, two tools for cutting and polishing must be used.

Accordingly, the number of machining tools increases when working outdoors, making storage and management inconvenient, so there is a demand for machining tools that can perform polishing and cutting operations with a single tool.

Republic of Korea Patent No. 10-2462868

The present invention was developed in consideration of the above problems, and the first object of the present invention is to enable processing of curved surfaces or hemispherical grooves of wood using a plurality of polishing protrusions formed on a spherical head. The goal is to provide spherical processing tools for wood.

The second object of the present invention is to provide a spherical processing tool for wood that has two cutting edges protruding from the surface of the head portion, allowing polishing and cutting processing to be performed with a single tool.

According to the features for achieving the above-mentioned object, the first invention relates to a spherical processing tool for wood, for which it includes a spherical head portion with a plurality of polishing protrusions protruding from the surface; and a pillar part extending from the lower part of the head part and coupled to an electric drill, wherein the pillar part is formed with a tap screw thread that is fixed to a hand machine.

In the second invention, in the first invention, the head portion is configured to be separated in half, but is integrally fixed to each other by bolting through a coupling bolt fastened across the central axis, and a pair of cutting blades are provided inside. It is characterized by being symmetrically accommodated around the center line.

In the third invention, in the second invention, the upper end of each cutting edge has a shape corresponding to the curved surface of the head, a lifting flange is further formed on both sides of the lower part, and the inside of the head is screw coupled to one of the lifting flanges. It is characterized by a built-in screw screw and a guide rod that is slidingly coupled with another lifting flange.

The fourth invention, in the third invention, is a pair of cutting edge grooves for accommodating each of the cutting edges, a long hole for accommodating the screw screw, a long groove for accommodating the guide rod, and A stopper groove is formed overlapping the long hole and the long groove to control the rising degree of each cutting edge by interrupting the rising of each lifting flange.

In the fifth invention, in the fourth invention, a large-diameter portion with a relatively large diameter is further formed on the screw screw and the guide rod, and the long groove and long hole of each head portion have an expansion groove that accommodates the large-diameter portion formed on the screw screw and the guide rod. It is characterized by further formation.

According to the spherical processing tool for wood according to the first embodiment of the present invention, the curved surface or hemispherical groove of wood can be effectively polished using a plurality of polishing protrusions formed on the spherical head.

According to the spherical processing tool for wood according to the second embodiment of the present invention, without replacing the cutting tool for cutting processing, after polishing using the polishing protrusion, the two cutting edges are protruded to the surface of the head portion to perform cutting processing. There is a possible effect.

In addition, according to the spherical processing tool for wood according to the second embodiment of the present invention, grinding and cutting operations are possible with one processing tool, thereby improving workability.

1 is a perspective view of a spherical processing tool for wood according to a first embodiment of the present invention;
2 and 3 are perspective views of a spherical processing tool for wood according to a second embodiment of the present invention;
Figure 4 is an exploded perspective view of a spherical processing tool for wood according to a second embodiment of the present invention;
Figure 5 is a cross-sectional view of a spherical processing tool for wood according to a second embodiment of the present invention;
Figure 6 is an operational diagram showing the cutting edge operation of the spherical processing tool for wood according to the second embodiment of the present invention.

The following objects, other objects, features and advantages of the present invention will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided so that the disclosure will be thorough and complete and so that the spirit of the invention can be sufficiently conveyed to those skilled in the art.

Embodiments described and illustrated herein also include complementary embodiments thereof.

As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, 'comprise' and/or 'comprising' do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing specific embodiments below, various specific details have been written to explain the invention in more detail and to aid understanding. However, a reader who has sufficient knowledge in the field to understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts that are commonly known but are not significantly related to the invention are not described in order to prevent confusion in describing the invention.

Hereinafter, the spherical processing tool for wood according to the present invention will be described in detail along with the attached drawings.

[First Embodiment]

Figure 1 is a perspective view of a spherical processing tool for wood according to a first embodiment of the present invention.

As shown in Figure 1, the first embodiment of the present invention is a spherical processing tool for wood ( 100).

The spherical processing tool 100 for wood of this first embodiment is largely composed of two parts, which may be composed of a head portion 10 and a pillar portion 20.

The head portion 10 takes a spherical shape and functions to process a curved surface or a hemispherical groove of wood by spherical curvature.

In addition, the head portion 10 has a plurality of polishing protrusions 11 protruding integrally from its surface, and can function to polish the machined surface of wood through rotational friction through the polishing protrusions 11.

The pillar part 20 extends to the lower part of the head part 10 and is fixed by coupling with a hand machine (not shown), and has a tap screw thread 21 that can be fastened to each other with a hand machine (not shown). This may be further formed and configured.

[Second Embodiment]

Figures 2 and 3 are perspective views of a spherical processing tool for wood according to a second embodiment of the present invention, Figure 4 is an exploded perspective view of a spherical processing tool for wood according to a second embodiment of the present invention, and Figure 5 is a perspective view of the spherical processing tool for wood according to a second embodiment of the present invention. It is a cross-sectional view of a spherical processing tool for wood according to a second embodiment of the invention, and Figure 6 is an operational diagram showing the cutting edge operation of the spherical processing tool for wood according to a second embodiment of the present invention.

As shown in Figures 2 to 6, the second embodiment of the present invention includes the first embodiment, except that in processing the curved surface or hemispherical groove of wood, cutting processing along with polishing processing can be performed with one tool. This relates to a spherical processing tool (100) for wood.

The head portion 10 of the spherical wood processing tool 100 of the second embodiment is divided into two halves.

As shown in FIG. 4, the head portion 10 has a structure in which the head portion 10 is integrally fixed to each other by bolting through a coupling bolt 15 crossing the center axis.

The head portion 10 is divided into two semicircular shapes, and through this, a structure capable of installing a cutting blade 30 for cutting the processing surface of wood can be provided.

In the second embodiment of the present invention, the structure has two cutting edges 30 that selectively protrude from the surface of the head 10, and as shown in FIG. 5, they are symmetrically accommodated around the virtual center line C. It is a structure.

Here, the upper end of each cutting edge 30 has a shape corresponding to the curved surface of the head portion 10, as shown in FIG. 2, and lifting flanges 31 may be further formed on both sides of the lower part.

At this time, as shown in FIG. 4, the inside of the head portion 10 includes a single screw screw 40a to which the lifting flange 31 of each cutting edge 30 is screwed on both sides, and each cutting edge 30 )'s lifting flange 31 may be configured with a single guide rod 40b slidingly coupled to both sides.

Here, the screws of the screw screw 40a may have a structure formed to be opposite to each other with the center as the starting point so that the lifting flanges coupled to both sides can be moved symmetrically.

Accordingly, each cutting edge 30 protrudes onto the surface of the head 10 through the lifting flange 31, which is simultaneously raised and lowered by the rotation of the screw screw 40a, or is aligned with the surface curvature of the head 10. A structure can be prepared that can be lowered to match.

In addition, the guide rod 40b linearly guides the cutting blade 30, which is lifted and lowered by the screw screw 40a, so that the cutting blade 30 can be lifted and lowered smoothly.

Meanwhile, as shown in FIGS. 4 and 5, the coupling surface of each half-divided head portion 10 includes a pair of cutting edge grooves 12 for accommodating each cutting edge 30 and a pair of cutting edge grooves 12 for accommodating the screw screw 40a. It is formed to overlap the long hole (14a), the long groove (14b) in which the guide rod (40b) is accommodated, and the long hole (14a) and the long groove (14b) to control the rise of each of the lifting flanges (31). A stopper groove 13 that controls the degree of elevation of the cutting edge 30 may be further formed.

At this time, a large diameter portion 41 with a relatively large diameter is further formed on the screw screw 40a and the guide rod 40b, and the screw screw 40a and the guide rod are formed on the long hole 14a and the long groove 14b. An expansion groove 141 that accommodates the large diameter portion 41 formed in may be further formed.

Through this, it is possible to provide a structure in which the screw screw 40a can freely rotate without being separated from the inside of the head portion 10 through the large diameter portion 41 accommodated in the expansion groove 141.

Accordingly, when cutting a groove or curved surface of wood, the user rotates the screw screw 40a through the long hole 14a, as shown in Figure 5 (a), so that each cutting edge 30 is connected to the head portion 10. It can be converted into a cutting tool for cutting by raising it higher than the protrusion height of the polishing protrusion 11 formed in .

And, as shown in Figure 5 (b), the screw screw 40a is rotated in the opposite direction so that each cutting edge 30 is lowered to match the surface curvature of the head 10 and is attached to the head 10. The groove or curve cut through the formed polishing protrusion 11 can be converted into a polishing tool for continuous polishing.

The screw screw 40a and the coupling bolt 15 in the second embodiment of the present invention may have a hexagonal wrench head structure.

In addition, the cutting blade 30 of the second embodiment of the present invention is configured to have cutting tips 32 coupled to both upper corners, so that the cutting tips 32 can be replaced in both directions as well as cutting wood in both directions. It can be.

Since the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, various equivalents can be substituted for them at the time of filing the present application. It should be understood that there may be variations.

10: Head 11: Grinding protrusion 12: Cutting blade groove
13: Stopper groove 14a: Long hole
14b: Jang groove 141: Expansion groove
15: Combining bolt
20: pillar part 21: tap thread
30: Cutting edge 31: Elevating flange 32: Cutting tip
40a: Screw Screw 40b: Guide Rod 41: Large Diameter
100: Spherical processing tool for wood
C: Virtual center line

Claims (5)

A spherical head portion (10) with a plurality of polishing protrusions (11) protruding from the surface; and
It includes a pillar part (20) extending to the lower part of the head part (10) and coupled to the electric drill,
The pillar portion 20 is formed with a tapped thread 21 that is fixed to the hand machine,
The head portion 10 is
They are divided into two halves, but are integrally fixed by mutual bolting through coupling bolts (15) fastened across the central axis,
A spherical processing tool for wood, characterized in that a pair of cutting edges (30) are accommodated symmetrically around a virtual center line (C) inside.
delete According to paragraph 1,
The upper end of each cutting edge 30 has a shape corresponding to the curved surface of the head 10, and lifting flanges 31 are further formed on both sides of the lower part,
The head part 10 is characterized by a built-in screw screw (40a) that is screw-coupled with one lifting flange (31) and a guide rod (40b) that is slidingly coupled with the other lifting flange (31). A spherical processing tool for wood.
According to paragraph 3,
On the mating surface of each half-divided head part (10),
A pair of cutting edge grooves (12) for accommodating each cutting edge (30),
A long hole (14a) in which the screw screw (40a) is accommodated,
A long groove (14b) in which the guide rod (40b) is accommodated,
A stopper groove (13) is formed to overlap the long hole (14a) and the long groove (14b) to control the rising degree of each cutting edge (30) by interrupting the rise of each lifting flange (31). Features a spherical processing tool for wood.
According to clause 4,
A large diameter portion 41 having a relatively large diameter is further formed on the screw screw 40a and the guide rod,
Characterized in that an expansion groove 141 is further formed in the long hole 14a and the long hole 14a of each head portion 10 to accommodate the large diameter portion 41 formed on the screw screw 40a and the guide rod. Spherical processing tool for wood.