JP2004358641A - Portable drill with freely detachable level - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply machine drilling and tapping with a small electric drill or the like orthogonally to a face to be machined even if the face is kept inclined. <P>SOLUTION: A level 3 is mounted to a drill body 2 of the portable drill 1 so as to be three-dimensionally tilted and attachable/detachable via a joint means 4 such as a universal joint and a flexible joint so that the drilling and tapping can be executed orthogonally even to the inclined face to be machined. The level 3 is mounted to the joint means 4 such as the universal joint and the flexible joint so as to be three-dimensionally tilted. It is also be attachably/detachably mounted to the drill body 2 via an attaching/detaching means 13 such as a velvet fastener and a magnet body. Also, it is preferable that the centering of the portable drill 1 is executed by inserting an orthogonally centering tool 15 to a drill chuck 14 of the drill body 2, by bringing the orthogonally centering tool 15 into contact with the face to be machined, and by making the level 3 mounted to the drill body 2 in a horizontal state with the joint means such as the universal joint or the flexible joint. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable drill capable of detachably attaching a level in the field of drilling and tapping.
[0002]
[Prior art]
For attaching and assembling members, drilling and tapping with a portable electric drill are widely performed. When drilling or tapping the workpiece, the electric drill is held so that the drill is perpendicular to the workpiece surface. However, the operator holds the electric drill by eye measurement and intuition, and performs drilling and tapping by applying a drill to the surface to be processed.
[0003]
[Prior art documents]
As a result of conducting a prior patent search for the above technology, Japanese Patent Publication No. 6-45342, Japanese Patent Application Laid-Open No. 8-215910, Japanese Patent Application Laid-Open No. 7-223106, and Japanese Patent Application Laid-Open No. 7-15209 were found. .
[0004]
In the above three publications, in each case, a level is integrally attached to the drill body and the level of the level is variable with respect to the vertical direction or the horizontal direction of the drill, so that the level is perpendicular to the surface to be processed. Drilling has been proposed. Further, the latter publication proposes that a drill is fixed to a drill body with a fixing bolt and nut, and a level is attached to a base of the drill via a magnet body to vertically drill the hole.
[0005]
[Problems to be solved by the invention]
However, in any of these, even if the level can be adjusted two-dimensionally with respect to the inclined surface of the work surface, the inclination angle cannot be variably set three-dimensionally. There has been a demand for a device that can be freely used by being attached to a surface, and can be freely applied to various processing surfaces.
[0006]
[Means for Solving the Problems]
The present invention has been made in view of the above points, and in order to solve the above-described problems, a portable electric drill or the like is provided so that drilling and tapping can be performed at right angles even on an inclined work surface. A level which can be detachably attached to a drill body via a joint means such as a universal joint or a flexible joint so as to be tiltable in three dimensions. It is in.
[0007]
The portable drill with a removable level according to the present invention is a three-dimensional level mounted on a drill body such as a portable electric drill so that drilling and tapping can be performed at right angles even on an inclined work surface. It is characterized in that it is detachably attached via a joint means such as a universal joint or a flexible joint so as to be tiltable.
[0008]
The portable drill 1 can be used with a cordless or corded electric drill, tap, or manual drill. As shown in FIG. It can be freely tilted and removably mounted via a joint means 4 such as a universal joint or a flexible joint, and a drill 5 can be vertically opposed to any inclined surface of the workpiece to perform drilling and tapping. I can do it.
[0009]
As the level 3, a thin and small one is preferable, and an inexpensive one integrally molded with air bubbles in a plastic container available on the market can be used.
[0010]
2 (a) and 2 (b), the mounting means 6 is provided with a hook-shaped shaft support 7 and the turning shaft 8 is axially mounted thereon. As shown in FIGS. A level support shaft 9 is axially mounted, and a level base 10 is screwed to the tip of the level support shaft 9. The level 3 is integrally mounted on the level base 10, and the level 3 is tilted three-dimensionally. It is a universal joint that can be used.
[0011]
A fixing screw 11 is attached to the revolving shaft 8 and a tightening screw 12 is attached to the level support shaft 9 so that the level 3 can be firmly fixed at a predetermined inclination angle. In addition, a loosening prevention spring can be attached if necessary.
[0012]
Then, the mounting base 6 of the joint means 4 is detachably attached to an appropriate position on the side surface of the drill body 2 by attaching and detaching means 13 such as a velvet fastener, a magnet body, and a double-sided adhesive tape. Drilling and tapping can be performed.
[0013]
Further, as shown in FIGS. 3 and 4, a right-angle centering tool 15 is inserted into the drill chuck 14 of the drill body 2 so that the drill body 2 can be accurately positioned at right angles to the surface to be processed. At this time, the level 3 is tilted to a horizontal state via the above-mentioned joint means 4 so that the bubble is positioned at the center, the right-angle centering tool 15 is replaced with the drill 5, and the drill body 2 is objectively inserted. It can be machined facing the surface to be machined at right angles.
[0014]
As the right-angle centering tool 15, as shown in FIGS. 3A and 3B, a right-angle shaft 17 is vertically screwed to the center of a leg member 16 of an appropriate length of 50 to 80 mm which can be assembled orthogonally. By inserting the right-angle shaft 17 into the drill chuck 14 as shown in FIG. 4, the drill body 2 is opposed to the surface to be processed at right angles as described above.
[0015]
On the back side of the leg member 16, projections 19 are respectively provided at the same height so as to be axially symmetrical around the right-angled shaft hole 18, and contact the processing surface via the projections 19. It is preferable to avoid the error due to the uneven surface.
[0016]
In addition, it is convenient and preferable to assemble the right-angle centering tool 15 in such a right-angle shape for transportation and storage. However, a cross-shaped one, a cup-shaped one, a pyramid-shaped one, and the like may be appropriately used based on the spirit of the present invention. Modifications are possible.
[0017]
In addition to the universal joint of the joint means 4, the level 3 can be made to be three-dimensionally tiltable as a flexible joint such as a flexible wire.
[0018]
【Example】
1 and 2 show one embodiment of the present invention. As shown in FIG. 1, a portable drill 1 of a small electric drill has a level 3 detachably attached to a side surface of the drill main body 2 by means of a velvet fastener attaching / detaching means 13 via a universal joint means 4 as shown in FIG. Drilling and tapping can be easily performed at right angles.
[0019]
The joint means 4 can be tilted three-dimensionally through the turning shaft 8 and the level support shaft 9 as described above with reference to FIG. 2, so that the surface to be processed can be two-dimensional or three-dimensional on a horizontal plane or a vertical plane. The level 3 can be easily turned horizontally on the inclined surface via the joint means 4 of the universal joint described above, and the portable drill 1 is perpendicular to the surface to be processed in such a state of the level 3. Drilling and tapping can be performed at right angles to the surface.
[0020]
Then, as shown in FIG. 4, the right-angle bar 17 of the right-angle centering tool 15 is inserted into the drill chuck 14 of the drill body 2, and the right-angle centering tool 15 is brought into contact with the surface to be processed, whereby the drill body 2 can be easily processed. It can be centered at right angles to the surface, and it is possible to adjust the level 3 as described above to set it horizontally, remove the right-angled centering tool 15, insert a required drill or tap, and work on it. it can. The present invention is also applicable to the case where the inner peripheral surface of the large-diameter opening surface is corrected by inserting a rod-shaped grinder or the like.
[0021]
Since the level can be tilted three-dimensionally in this way, the drill body can be easily opposed to the inclined surface at right angles to the inclined surface, regardless of the inclined surface, and drilling and tapping can be performed. The level can be easily attached to other electric drills by using simple velvet fastener attaching / detaching means.
[0022]
In addition, by inserting the right-angle centering tool into the drill chuck, the drill body can be easily and accurately positioned at a right angle to the surface to be processed, and the above-mentioned level is more accurately adjusted horizontally to make a hole. , Tapping can be performed.
[0023]
The structure of the above-mentioned universal joint is an example, and other hook mechanisms and the like can be implemented, and can be implemented by using a flexible joint. In the above embodiment, the right-angle centering tool is also preferable because it can be disassembled and compactly housed. However, other modifications can be implemented based on the spirit of the present invention.
[0024]
【The invention's effect】
As described above, according to the present invention, the level is attached to the portable drill via the joint means such as a universal joint or a flexible joint so that the level can be tilted three-dimensionally. A portable drill can be perpendicularly opposed to a surface that can be tilted two-dimensionally, and the surface to be processed is inclined two-dimensionally or three-dimensionally on a horizontal surface or a vertical surface, and drilling at a right angle to the surface to be processed is possible. It is capable of tapping.
[0025]
Then, the level is attached to the joint means of a universal joint or a flexible joint so as to be tiltable three-dimensionally, and is detachably attached to a portable drill body via a velvet fastener, a magnet body, or the like. Not only the portable drill but also other portable drills can be attached in the same manner and have the above-described functions and effects.
[0026]
Also, there is provided a leveling tool for inserting a drill chuck of a portable drill body into a drill chuck, wherein the leveling tool can be brought into contact with the surface to be processed at a right angle and is attached to the portable drill body. By setting the portable drill at right angles to the horizontal position with the universal joint or flexible joint joint means, the drill body can be easily and accurately positioned at right angles to the surface to be machined. Can be more accurately adjusted horizontally to make holes and perform tapping.
[0027]
Further, by forming the right-angle centering device to be inserted into the drill chuck of the portable drill body into a cross-openable cross shape or the like, the right-angle centering device can be made compact and can be easily carried and stored.
[Brief description of the drawings]
FIG. 1 is an explanatory front view of one embodiment of the present invention;
FIG. 2 is a plan view (a) and a front view (b) of a level part of the above.
FIG. 3 is a plan view (a) and an exploded view (b) of the right-angle centering tool according to the first embodiment;
FIG. 4 is an explanatory view of a use state of the above.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Portable drill 2 ... Drill main body 3 ... Level 4 ... Universal joint 5 ... Drill chuck 13 ... Attaching / detaching means

Claims (4)

A joint means such as a universal joint or a flexible joint is provided so that a level can be tilted three-dimensionally on a drill body such as a portable electric drill so that drilling and tapping can be performed at right angles even on an inclined work surface. A portable drill with a level that can be detachably attached to the drill. 2. The level according to claim 1, wherein the level is attached to a joint means of a universal joint or a flexible joint so as to be tiltable in three dimensions, and is detachably attached to a portable drill body via a velvet fastener or a magnet body. Portable drill with removable level. A right-angle centering device to be inserted into a drill chuck of a portable drill body, wherein a level which can abut the right-angle centering device at right angles to a surface to be processed and is attached to the portable drill body is a universal joint or The portable drill according to claim 1 or 2, wherein the portable drill is detachably mounted at a right angle by a flexible joint. 4. The portable drill according to claim 3, wherein the right-angle centering tool inserted into the drill chuck of the portable drill body is formed in an openable and closable cross shape.

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