JPH11300586A - Tool for assisting grinding of blade of chisel or plane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool to assist the grinding of a chisel of a plane which assists to grind a striped surface of a blade of a chisel or a plane to be flat through correct adaptation to the angle of a cutting blade uniformly using the whole grinding surface of a grinding wheel, is excellent in versatility, and easy to use irrespective of the degree of skill. SOLUTION: A tool comprises a body 1, a fixing parts 2 to hold a chisel or a plane body to a body, and a wheeled column 3 to support one side of the body 1 at the arbitrary height. The chisel or the plane body is inserted in a blade fitting space 4 between a lower surface of a box-like metallic plate 5 and the fixing parts 2, and fixed thereto by turning a butterfly bolt 9. The chisel or the plane body is placed on a grinding surface, and the regulation is achieved to tightly attach a striped surface to a contact surface of the grinding surface by changing the inclination of the body by turning a butterfly bolt 11. The grinding is achieved by holding a part of the box-like metallic plate 5 with fingers, a palm is placed on a hand-placement surface 7, and slightly moving it by a single hand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for assisting manual sharpening of a chisel or canner blade with a grindstone.

[0002]

2. Description of the Related Art As a tool to help sharpen the ho surface of a chisel or canna blade, there is a tool which is held with both hands. The tool has a ho surface and a grinding surface corresponding to a cutting edge angle. The structure for performing the adjustment for the close contact is performed by changing the insertion position of the chisels and the canna body with reference to the cylindrical roller rolling on the grinding surface of the grindstone.

[0003]

SUMMARY OF THE INVENTION The present invention relates to a method for manually sharpening a flea or canner blade having various sizes, shapes and cutting edge angles, in which a contact surface between a ho surface and a grinding surface is reduced by a cutting edge angle. The first task is to assist in accurate and flat grinding with high accuracy while applying an appropriate force on the entire contact surface on average. . In this case, the adjustment for bringing the contact surface between the ho surface and the grinding surface into close contact can be performed directly while the ho surface is in contact with the grinding surface. Particular emphasis is placed on making it easier to do things and making it easier to perceive the level of force applied to the contact surface.

According to the present invention, the grinding surface is maintained as flat as possible by using the whole grinding surface of the grinding wheel evenly, and the sharpening juice is kept in a natural state, A second task is to assist in sharpening methods that make full use of the effects. In this case, a special emphasis is placed on making sure that only the ho surface comes into contact with the grinding surface of the grinding stone.

[0005] The present invention is intended to provide a highly versatile flea and canned body of various sizes, shapes, and cutting angles, and a dedicated whetstone for this tool. No grinding is required, it is possible to sharpen while using commonly available rough whetstones, medium whetstones, finishing whetstones, etc., it can be easily used without being affected by the level of skill, and it can be made inexpensively with a simple structure What you can do,
The third task is to provide a tool that can satisfy the above condition.

[0006]

This tool comprises a metal body 1, a wooden fixing part 2 for holding chisels and canna body between the main body and one side of the main body 1 at an arbitrary height. The above-mentioned problem is solved by being constituted by a metal pillar 3 to be supported by the support.

This tool comprises a box-shaped metal plate 5 at the center of the main body 1.
Between the lower surface of the base and the fixing component 2 is a blade mounting space 4;
By having a structure in which the fleas and canna body inserted here are sandwiched between the fixing part 2 and the lower surface of the box-shaped metal plate 5,
Even if the size and shape of fleas and cannabis are various, they can be easily attached.

The fixing part 2 is combined with the main body 1 so that the guide groove 12 slides along the inside of the side surface of the box-shaped metal plate 5, and further, a wing bolt 9 passed through a nut 8 fixed to the main body 1 is provided. Metal bolt receiving surface 15 on the upper surface of fixing component 2
By pressing the structure, the fleas and canna can be securely held without damaging the body. The combination of the fixing component 2 and the main body 1 is performed by using a screw 13.
, The side plate 14 attached to the fixing component 2 is once removed.

A metal cutting edge support plate 16 is attached to the lower surface of the fixing part 2, and a handle receiving surface 17 is provided for sharpening a large handle such as a flea that is held in the opposite direction. Improves stability when holding canna.

[0010] This tool is mounted on a grindstone with a chisel or a canna body attached to the grinding surface so that the ho surface is in contact with the grinding surface, that is, an adjustment for bringing the contact surface into close contact with the grinding surface. With this structure, even if the angle of the cutting edge and the size of the ho-face are various, it is possible to accurately cope with this.

In order to enable the above, the support 3 is
The support plate mounting arm 6 is attached to the guide plate receiver 18 having both ends bent into a J-shape.
And a wing bolt 11 fixed to a column mounting arm 6 so as to be able to rotate but not move up and down while being slidable through a guide plate 10 fixed to the
Is also passed through a nut 19 fixed to the column 3. Thus, by turning the wing bolt 11, the inclination of the main body (1) can be continuously and finely changed, and the state in which the contact surface between the ho surface and the grinding surface is most closely contacted is surely ensured. So that it can be held.

This tool has a structure in which the column 3 stands outside the grindstone and can be freely moved by the wheels 20, so that the size of the honing surface is various and the size of the grindstone is somewhat small. Even if it is different, it is possible to sharpen while using the whole grinding surface evenly, and furthermore, while preserving the important sharpening juice in the natural state by knife sharpening.

In this tool, by mounting two wheels 20 in parallel, the wobble of the column 3 in the horizontal direction is prevented, and the force of the hand applied downward on the hand rest surface 7 makes the wheel 20 the fulcrum. , The structure that transmits from just above the contact surface between the ho surface and the grinding surface, the degree of force applied to the contact surface between the ho surface and the grinding surface, not only for the wide body of the cutting edge but also for the very narrow fleas This makes it possible to sharpen the ho surface with high precision and in an optimal state, while feeling sensitively.

【Example】

FIG. 11 shows a chisel 21 mounted on the tool and placed on a grindstone 22.

When sharpening, the user holds the box-shaped metal plate 5 with his / her finger and places his palm on the hand rest surface 7 so that the column 3 is on the other side of the body. Then, turn the wing bolt 11 with one hand, and adjust so that the contact surface between the ho surface and the grinding surface is in close contact.
Sharp while moving lightly back and forth.

[0016]

According to the present invention, by taking the above measures, it is possible to provide a tool having the following effects.

Even if the angle of the cutting edge of the fleas and the planks and the size of the ho-face are various, the ho-face can be sharply flattened with high precision, accurately corresponding to the cutting-edge angle. In particular, a sharp chisel having a blade edge width as small as about 9 millimeters and a canner blade when the blade edge is inclined with respect to the center line of the canna body can be sharpened flat with high accuracy.

With a generally available grindstone, it is possible to grind while using the whole grind surface evenly and making full use of the effect of the sharpening juice.

The sharpening can be performed by a simple operation of moving back and forth with one hand.

[0020] Even if you are not skilled, you can sharpen with a content comparable to a skilled person.

[Brief description of the drawings]

FIG. 1 is an elevational view of a combination of a main body 1, a fixing component 2, and a support column 3, as viewed from the side.

FIG. 2 is an elevational view of the main body 1 as viewed from the side.

FIG. 3 is an elevational view of the fixing component 2 as viewed from the side.

FIG. 4 is an elevational view of the column 3 as viewed from the side.

FIG. 5 is a plan view of the main body 1 as viewed from above.

FIG. 6 is an elevation view of the main body 1 as viewed from the front (the column 3 side).

FIG. 7 is a plan view of the column 3 as viewed from above.

FIG. 8 is an elevational view of the column 3 as viewed from the front.

FIG. 9 is a plan view of the fixing component 2 as viewed from above.

FIG. 10 is a plan view of the fixing component 2 as viewed from below.

11 is an elevational view showing an embodiment in which a chisel 21 is mounted on the tool and placed on a grindstone 22. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Fixing parts 3 Prop 4 Knife mounting space 5 Box-shaped metal plate 6 Prop mounting arm 7 Hand rest surface 7 8 Nut 9 Wing bolt 10 Guide plate 11 Butter bolt 12 Guide groove 13 Screw 14 Side plate 15 Bolt receiving surface 16 Blade tip Support plate 17 Handle receiving surface 18 Guide plate receiver 19 Nut 20 Wheel 21 Chisel 22 Whetstone

Claims (4)

[Claims] 1. The box-shaped metal plate (5) and the hand placing surface (7) are
A tool for assisting blade sharpening, which has a structure in which a support (3) is attached to a main body (1) in which a support attachment arm (6) is arranged on a side opposite to a hand rest surface (7), and which is arranged in a character shape. 2. A knife mounting space (4) by assembling a fixing part (2) so as to slide inside a box-shaped metal plate (5) and moving it by the action of a wing bolt (9). A tool for assisting blade sharpening, with a structure that holds the chisels and canna body inserted in). 3. A contact state between a honing surface of a chisel or a canner blade mounted on the tool and a grinding surface of a whetstone is adjusted by changing a tilt of the main body (1) by the action of a wing bolt (11). A tool for assisting blade sharpening. 4. A tool for assisting blade sharpening, wherein two wheels (20) are attached in parallel to a support (3) to enhance operability and stability.