JP2001259912A - Vertical drilling guiding auxiliary tool for bit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guiding auxiliary tool for vertically drilling at an objective position on an article which can be easily drilled by an electric drill. SOLUTION: A large number of holes 2 having different diameters are vertically drilled on a main body 1, and funnel-shaped expanded portions 3 overlapping with adjacent holes are formed at a bottom portion of the holes 2. Expanded portion toward a bottom edge 4 is formed on a side surface of the main body 1, and lines 5 vertically extending from the centers of holes 2 to the side surface of the main body 1 are drawn on an upper surface and down to the bottom edge 4 of the four surfaces of the main body 1. A handle 6 is provided on an upper part of one end with large diameter holes 2 side of the main body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide assisting tool (hereinafter referred to as a guide tool) for easily drilling a vertical hole in an object (hereinafter, referred to as an object) to be drilled using an electric drill. To).

[0002]

2. Description of the Related Art When a hole is drilled with a tabletop drilling machine, there is a case where the edge of the drill escapes due to the damage of the edge of the drill and a vertical hole cannot be formed. When the target object is a wooden product, a vertical hole may not be formed due to the effect of the grain. In particular, when a drill having a small diameter is used, the relief of the blade is large. this is,
This is because the drill blade is long, and the axis of the drill blade is overloaded. When the object is large or fixed like a building and cannot be installed on a tabletop drilling machine, an electric hand drill is used. But,
There is a vertical drilling aid that is attached to the electric hand drill body, but in this case, the blade escapes,
Installation takes time. There is also a vertical drilling guide aid of the type that touches the object, but this must be fixed to the object with nails and a pilot hole must be drilled with a punch, and the one that matches the diameter of the drill blade I have to change them one by one. In addition, when drilling holes directly on an object with an electric hand drill without using these assistive tools, it is necessary to be vertical or to see the drill blade from the side, and there is a technical difference .

[0003]

This has the following disadvantages. I. When drilling a hole with a tabletop drilling machine, the edge of the drill may not be able to make a vertical hole due to the damage of the drill edge. When the target object is a wooden product, a vertical hole may not be formed due to the effect of the grain. In particular, when a drill having a small diameter is used, the relief of the blade is large. This is because the drill blade is long, and the shaft of the drill blade is overloaded. B. When the object is large or fixed like a building and cannot be installed on a tabletop drilling machine, an electric hand drill is used. However, there is a vertical drilling assisting tool that is attached to the electric hand drill body, but in this case, the blade escapes and it takes time to attach. C. There is also a vertical drilling guide aid of the type that touches the object, but this must be fixed to the object with nails and a pilot hole must be drilled with a punch, and the one that matches the diameter of the drill blade I have to change them one by one. D. In the case of directly drilling an object with an electric hand drill without using these assisting tools, it is necessary to perform drilling vertically or the drill blade must be viewed from the side, resulting in a technical difference. The present invention has been made to solve the above drawbacks.

[0004]

SUMMARY OF THE INVENTION A number of holes (2) having different diameters are vertically opened in a main body (1). At the bottom of the hole (2) there is a funnel-like spread (3) that overlaps the adjacent hole (2). The skirt (4) on the side of the body (1) has a spread. A straight line (5) extending perpendicular to the side surface of the main body (1) from the center of the hole (2) is attached to the upper surface of the main body (1) and below the four sides of the hem (4). A handle (6) is attached to the upper end of the larger diameter end of the hole (2) of the main body (1).

[0005]

Embodiments of the present invention will be described below. (A) The body (1) has a number of holes (2) with different diameters that are perpendicular to each other, and is made of hard steel to give a sense of stability and wear due to the drill bit. ,
It has a bottom area about half that of a government-made postcard and a thickness of about 2 cm, but if the diameter of the drill blade is small,
When the thickness and size are small and the diameter of the drill bit is large, it is necessary to increase the thickness and size. When the width of the object is small, the body (1) is parallel to the handle (6). ) May be elongated. (It is a perspective view of the elongated type of the present invention shown in FIG. 6.) (b) The bottom of the hole (2) is provided with a funnel-shaped spread (3), and the funnel-shaped spread of the adjacent hole (2) ( Make it overlap with 3). (C) The area of the bottom surface is made larger than the area of the upper part of the main body (1), and the skirts (4) of the four side surfaces are widened. (D) A straight line (5) extending perpendicularly to the side surface of the main body (1) from the center of the hole (2) is formed on the upper surface of the main body (1) and the hem of the four surfaces (4).
But keep it. (E) By using the handle (6), which can be held by hand, at the top of the larger diameter end of the hole (2) of the main body (1), when using a large-diameter drill blade The load on the handle (6) can be reduced. The present invention has the above configuration. When using the present invention, hold the guide handle (6) with one hand, hold the electric hand drill with the other hand and pass through the hole (2).
A hole can be drilled vertically in the object as follows. By expanding the hem (4), it is possible to stabilize the guide tool when the guide tool is perfectly grounded on a flat object. Since the main body (1) is made of hard steel and the position of the hole to be drilled cannot be seen, if it is desired to make a hole at the exact position of the object, the center of the position where the hole of the object is to be drilled is set at each angle in advance. Draws a 90-degree cross-shaped line, and is the smallest of four lines (5) extending from the center of the hole (2) having the desired diameter of the hole (2) in the main body (1) and adjacent to each other. A hole can be made at the center of the cross-shaped line by combining two lines at an angle of 90 degrees. At that time, four sides hem (4)
Is spread, so that the body does not need to be moved so much to see the straight line (5) on each side, and it is possible only by looking at the head from above. Further, a funnel-shaped spread (3) is provided at the bottom of the hole (2) so as to overlap with the funnel-shaped spread (3) of the adjacent hole (2), so that it is cut off from the object. This is a reservoir hole for shavings to prevent the shavings from entering the gap between the guide and the target object and preventing proper grounding, and the adjacent funnel is overlapped with the adjacent hole (2). This is for allowing the shavings to escape to the shape spread (3). If you want to make a deeper hole, remove the guide and drill to the desired depth. Also, when drilling a hole in a tabletop drilling machine, this guide can prevent the blade from escaping. In addition, these methods assume that the object is flat, but the bottom of the main body (1) is rounded so as to be parallel to the handle (6), and can be used for a cylindrical object. Is also conceivable. (It is a perspective view of the column-corresponding type of the present invention shown in FIG. 7.) In these methods, it is assumed that holes are made vertically, but holes (2) made in the main body (1) are formed. ) May have a certain angle, and an oblique hole may be made in a flat object. (It is a cross-sectional view of the oblique drilling type of the present invention shown in FIG. 8 cut from the right side to the left side.)

[0006]

By using the present invention, a vertical hole can be formed at a target position of an object, and the failure of an amateur to make an oblique hole in a DIY or the like can be solved. Moreover, there is an advantage that it can easily cope with drill blades of various diameters.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a front view of the present invention.

FIG. 3 is a top view of the present invention.

FIG. 4 is a cross-sectional view of the present invention taken from the right side to the left side.

FIG. 5 is a perspective view showing a use state of the present invention.

FIG. 6 is a perspective view of the elongated type of the present invention.

FIG. 7 is a perspective view of a column-compatible type of the present invention.

FIG. 8 is a cross-sectional view of the oblique drilling type according to the present invention, cut from the right side to the left side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Hole 3 Funnel-shaped spread 4 Hem 5 Straight line 6 Handle

Claims (1)

[Claims] 1. A body (1) having a number of holes (2) having different diameters formed vertically therein, and a funnel-shaped spread (3) at the bottom of the hole (2) so as to overlap with an adjacent hole (2). And a straight line (5) extending from the center of the hole (2) perpendicular to the side surface of the main body (1), and extending to the hem (4) of the side surface of the main body (1). A) A vertical drilling aid for drill bits with a handle (6) at the top of the larger diameter end of the hole (2) in the body (1).