JP3150951B2 - Accessories for electric rotating tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accessory for an electric rotating tool.

[0002]

2. Description of the Related Art In recent years,
For example, as represented by the steel house construction method,
The components of the building are fastened together with fastening members such as screws and screws, or drill screws (screws with hexagonal nuts frequently used in steel house construction), nuts and bolts. Construction methods are being actively pursued.

By the way, an electric rotating tool (electric driver) is generally used for this kind of fastening work, but this work is used to fasten fastening members such as screws and screws. The work is performed by attaching a bit body having a bit portion to the tip of the electric rotating tool. On the other hand, when attaching a fastening member such as a drill screw, a nut, or a bolt, a cylinder is attached to the electric rotating tool. The work is performed with a so-called box wrench having a mold shape.

However, in the related art, it is extremely troublesome to replace a tool such as a bit body or a box wrench with the electric rotating tool, and it is necessary to carry a plurality of tools at all times. Problems such as troublesomeness have been pointed out.

The present invention provides an innovative accessory for an electric rotating tool that solves the above-mentioned problems.

[0006]

The gist of the present invention will be described with reference to the accompanying drawings.

[0007] Bit 3 at both ends is attached to the electric times dawg A
Is formed in the vicinity of the two bit portions 3.
The first curved locking groove 2a for connecting to the
A second curved locking groove 2b is formed near each of the curved locking grooves 2a.
A tubular body 1 to be attached to the bit body 2 that is, both ends of the cylindrical body 1 is a hole in plan view a polygon, one of the cylindrical body 1
Of the first hole 4 provided at one end and the other end of the cylindrical body 1
Set to a diameter different from the diameter of the second hole 5 provided in the part
The outer cylinder 9 is fitted to the inner cylinder 8 of the cylindrical body 1.
A spring 11 is provided between the inner cylinder 8 and the outer cylinder 9 so that both
Is slidably configured against the elasticity of the spring 11, and
At the position where the outer cylinder 9 of the cylinder 8 is mounted,
A through hole 8a is formed, and a steel ball 10 is disposed in the through hole 8a.
The arrangement state of the steel balls 10 is such that the outer cylinder 9
Of the inner cylinder 8 by sliding
The steel ball 10 located at 8a is in a movable state,
When the steel ball 9 is returned, the steel ball 10 becomes immovable and
Bit body 2 slightly projecting inward from said through hole 8a.
The first curved locking groove 2a or the second curved
When the cylinder 1 is mounted on the bit body 2 , the cylinder 1 is stopped from rotating with respect to the bit body 2 and the length direction of the bit body 2 is set so as to be engaged with the locking groove 2 b. It is configured so that is mounted in a immovable state, the tubular body 1 of the bit body 2
Use one of the first curved locking grooves 2a
To connect the bit body 2 to the chuck portion 7 of the electric rotating tool A
Then, the steel ball 10 is locked in the other first curved locking groove 2a.
In this case, the bit 3 is moved from the end of the cylindrical body 2 to a predetermined position.
Set to a position immersed in the back by a distance, while the second curve
When the steel ball 10 is locked in the locking groove 2b, the bit
The portion 3 is set at a position protruding from the end of the cylindrical body 1, and
The amount by which the bit 3 projects from the end of the cylinder 1
The present invention relates to an accessory for an electric rotating tool, which is set so as to be substantially equal in depth to a groove portion such as a screw or a screw into which the bit portion 3 is fitted.

Further, in the accessory for the electric rotating tool according to the first aspect, a hexagonal hole in a plan view is adopted as a polygonal hole in a plan view provided at an end of the cylindrical body 1. The present invention relates to an accessory for an electric rotating tool.

[0009]

According to the first aspect of the present invention, when a cylinder is mounted on a bit body attached to the electric rotating tool, and the bit portion of the bit body is made to protrude from an end of the cylinder body. When the bit body can be used for fastening a fastening member such as a screw or a screw, and the bit portion of the bit body is recessed a predetermined distance from the end of the cylindrical body, the cylindrical body can be used. The holes of the polygon at the end of
It can be used for fastening work by fitting to a fastening member such as a bolt.

Therefore, according to the first aspect of the present invention,
Simply mounting the cylinder on the bit body and slightly projecting the bit part at the tip of the bit body from the end of the cylinder body or immersing it at a predetermined distance, for example, screws, screws, etc. Versatile use, such as being able to be used as a so-called screwdriver to fasten a fastening member of the above, or as a so-called box wrench for fastening a fastening member such as a drill screw, nut, bolt, etc. This is a very convenient and revolutionary accessory for an electric rotating tool that can completely eliminate the troublesomeness of the conventional work and can improve the work efficiency accordingly.

According to the first aspect of the present invention, when the cylindrical body is mounted on the bit body, the amount of protrusion of the bit part from the end of the cylindrical body is reduced by a groove such as a screw or a screw into which the bit part is fitted. Is set to be approximately equal to the depth of the screw. For example, when the bit protruding from the end of the cylindrical body is inserted into a groove such as a screw or a screw, and the electric rotating tool is operated to rotate the bit, the screw or the screw is screwed. For example, when the end of the cylindrical body comes into contact with the screwing surface of the screwing member, a reaction force from the screwing member is received, and the bit portion is screwed or screwed. This is a very convenient and revolutionary accessory for an electric rotating tool that can prevent excessive rotation of screws, screws, and the like as much as necessary, for example, by removing the screw.

According to the first aspect of the present invention,
Different diameters only by changing the mounting direction of the cylinder to the
Drill of various diameters by the first hole or the second hole with
Capable of fixing fastening members such as screws, nuts and bolts
And the number of tools to carry is reduced.
Very convenient and easy to use
It is an accessory for a revolutionary electric rotating tool.

According to the second aspect of the present invention, in addition to the functions and effects of the first aspect of the present invention, a hole provided at an end of the cylindrical body is frequently used, for example, a drill screw, a hexagon nut, a hexagon bolt. The hexagonal shape in plan view that can conform to the above means that the fastening work such as drill screws, hexagon nuts, hexagon bolts, etc. can be easily and reliably performed, and the troublesome work of conventional work is completely eliminated. This is a very convenient and revolutionary accessory for an electric rotating tool that can improve the work efficiency accordingly.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings illustrate one embodiment of the present invention and are described below.

The illustrated electric rotating tool A is a known electric driver, reference numeral 6 is a main body, and reference numeral 7 is a chuck portion for gripping the bit body 2.

As shown in FIG. 1, the cylindrical body 1 has a metal inner cylinder 8 having an inner hole with a diameter that allows the bit body 2 to be inserted therethrough.
And a metal outer cylinder 9 fitted to the inner cylinder 8 and having a shorter length than the inner cylinder 8.

In the inner cylinder 8, three through holes 8a are formed at the position where the outer cylinder 9 is mounted on the same plane at intervals of 120 °, and a steel ball 10 is inserted into each of the through holes 8a. It is fitted. The through-hole 8a is provided in an outwardly expanding state (the diameter is different between the inside and the outside of the through-hole 8a and the outside is designed to be larger), and the innermost steel is provided. When the ball 10 is positioned, the steel ball 10 is designed to slightly project from the through hole 8a. That is, the steel ball 10 has a diameter larger than the inside diameter of the through hole 8a and smaller than the outside diameter, and is provided so as to partially project from the innermost position of the through hole 8a.

The outer peripheral surface of one end of the inner cylinder 8 has
11 is fitted.

The hole at one end and the hole at the other end of the inner cylinder 8 are each provided in a hexagonal shape in plan view.
The diameter of the first hole 4 provided at one end of the inner tube 8 is different from the diameter of the second hole 5 provided at the other end of the inner cylinder 8 (diameter conforming to the standard). . The shape of the first hole 4 and the second hole 5 can be arbitrarily set such as a polygon other than a hexagon, for example, a quadrangle, or one of the holes is hexagonal and the other is quadrangular. Further, the diameter of each hole can be arbitrarily set, and can be appropriately designed according to the needs of the user who actually uses the hole.

Reference numeral 8b denotes a step portion on which the ridge 11 is provided, 12 denotes a stopper ring for locking the outer cylinder 9, and 13 denotes a nut, a bolt, and other hexagonal rods fitted in the first hole 4 and the second hole 5. A steel ball 19 that can prevent a wrench or the like from slipping down to further improve workability is a ring member 19 for fastening the steel ball 13 while maintaining its elasticity.

The outer cylinder 9 is provided on its inner surface near one end with a recess 14 for disposing a spike 11 fitted on the inner cylinder 8. The spike 11 is provided with a step 9 a of the recess 14 and the inner cylinder. It is supported by the step 8b.

The inner surface of the outer cylinder 9 substantially at the center is the steel ball 10.
1 (the upper corner in FIG. 1 when the steel ball 10 is at the second curved locking groove 2b, and FIG. 2 when the steel ball 10 is at the first curved locking groove 2a). A relief recess 9c is provided near the support 9b to allow the steel ball 10 to escape. When the steel ball 10 is positioned in the escape recess 9c, the escape recess 9c
The bit body 2 is set to such a size that insertion of the bit body 2 into the body can be performed without any trouble.

Reference numeral 15 denotes a step which is engaged with the stopper ring 12 fixedly fitted to the inner cylinder 8.

The bit body 2 is a rod having a hexagonal cross section as shown in FIG. 1, and a bit part 3 (bit part for a Phillips screw) which is fitted into a groove of a screw and a screw at both ends in consideration of the case where one is rubbed. ) Is formed. A first curved locking groove 2a is provided in the vicinity of both bit portions 3 of the bit body 2, and a slightly lower bottom than the first curved locking groove 2a is provided near each of the first curved locking grooves 2a. However, a shallow second curved locking groove 2b is provided.

The first curved locking groove 2a is
When the tubular body 1 is connected and fixed to the chuck, and the bit body 2 is connected and fixed to the chuck portion 7 of the electric rotating tool A (specifically, the steel ball 18 in the chuck portion 7 is fitted into the first curved locking groove 2a). The second curved locking groove 2b is used only when connecting and fixing the cylindrical body 1 to the bit body 2.

A method for mounting the cylindrical body 1 to the bit body 2 according to this embodiment will be described below.

First, when the outer cylinder 9 is slid downward in FIG. 1 against the ridge 11 and the bit 2 is inserted into the inner cylinder 8 with the steel ball 10 positioned in the escape recess 9c, the bit 2 As a result, the steel ball 10 is pressed outward and is located in the escape recess 9c. Subsequently, when the outer cylinder 9 is moved back by the ridge 11, the steel ball 10 is placed in the through hole 8a, and one side is supported by the support portion 9b. And the other side protrudes from the through hole 8a, and the protruding portion fits into the curved locking grooves 2a, 2b of the bit body 2,
The cylindrical body 1 is mounted so that it cannot rotate with respect to the bit body 2 and cannot move in the axial direction of the bit body 2.

In this embodiment, when the bit body 2 is inserted into the cylindrical body 1 from the second hole 5 side to the first hole 4 side of the cylindrical body 1, as shown in FIG. 2nd curved locking groove 2
When the bit portion 3 is positioned (locked) at a, the bit portion 3 is designed to be in a state (box wrench state) in which the bit portion 3 is recessed by a predetermined distance from the end of the cylindrical body 1 (the end surface of the first hole 4). As shown in FIG.
b, the bit 3 protrudes from the end of the cylindrical body 1 (the end face of the first hole 4) (use of the bit 2)
It is designed to be.

When switching from the state shown in FIG. 3 (a state that can be used as a driver) to the state shown in FIG. 2 (a state that can be used as a box wrench), the outer cylinder 9 related to the cylindrical body 1 is moved. It is possible to switch with one touch only by moving in the direction of the first hole 4 so as to push down. That is, when the outer cylinder 9 is moved in the direction of the first hole 4 to the position where the steel ball 10 escapes to the escape recess 9c, the locking action of the steel ball 10 on the bit body 2 is released.
When the outer cylinder 9 is returned by the restoring force of the ridge 11, the steel ball 10 is locked into the first curved locking groove 2a, and the bit portion 3 of the bit body 2 becomes cylindrical. It is arranged in a state of being immersed by a predetermined distance from one end (a state that can be used as a box wrench).

In this embodiment, when the bit 2 is inserted into the cylindrical body 1 from the first hole 4 side to the second hole 5 side of the cylindrical body 1, as shown in FIG. Is positioned (locked) in the first curved locking groove 2 a of the bit body 2, the bit portion 3 is recessed by a predetermined distance from the end of the cylindrical body 1 (the end face of the second hole 5) (box wrench) When the steel ball 10 is locked in the second curved locking groove 2b of the bit body 2 as shown in FIG.
Is designed so that the bit 3 protrudes from the end (the end face of the second hole 5) (a state that can be used as a driver).

When switching from the state shown in FIG. 4 (a state that can be used as a box wrench) to the state shown in FIG. 5 (a state that can be used as a driver), the outer cylinder 9 of the cylindrical body 1 is pulled up. As described above, it is possible to switch with one touch only by moving in the first hole 4 direction.
That is, when the outer cylinder 9 is moved in the direction of the first hole 4 to a position where the steel ball 10 escapes to the escape recess 9c, the bit 2
When the bit body 2 is pushed down in this state, and the outer cylinder 9 is subsequently returned by the restoring force of the ridge 11, the steel ball 10 is clicked into the second curved locking groove 2b. And the bit portion 3 of the bit body 2 is positioned at the end of the cylindrical body 1 (the second hole 5).
(The end face of the lens).

Reference numeral 16 denotes a screw, and 17 denotes a hexagon nut.

Since the present embodiment is constructed as described above, the bit 2 provided with the cylinder 1 is mounted on the electric rotating tool A, and the bit 3 of the bit 2 protrudes from the end of the cylinder 1. In this state, the screw 16 can be used as a normal driver for fastening the screw 16. When the bit 3 of the bit 2 is immersed a predetermined distance from the end of the cylinder 1, The first hole 4 or the second hole 5 having a hexagonal shape in a plan view at the end of the cylindrical body 1 can be used for fastening work by fitting the hexagonal nut on the first hole 4 or the second hole 5.

Therefore, according to the present embodiment, the cylinder 1 is simply mounted on the bit 2 and the end of the cylinder 1 is inserted from the end of the cylinder 1.
By simply performing a one-touch operation of slightly protruding the bit portion 3 at the tip of the device or immersing the bit portion 3 by a predetermined distance, it can be used as a normal driver for fixing a fixing member such as a screw or a screw 16, or It can be used as a box wrench to fasten fastening members such as drill screws, hexagon nuts, hexagon bolts, etc., and can easily and quickly select a versatile use form, completely eliminating the cumbersomeness of conventional work. Thus, the work efficiency can be improved accordingly.

In this embodiment, a hole provided at the end of the cylinder 1 is frequently used, for example, a drill screw, a hexagon nut,
By making it a hexagonal shape in plan view that can match the hexagon bolt,
The fastening operation of the fastening members such as the drill screw, the hexagon nut and the hexagon bolt can be easily and reliably performed.

Also, in this embodiment, the first hole 4 or the second hole 5 having a different diameter only by changing the mounting direction of the cylinder 1 with respect to the bit body 2 is used, and only one of this embodiment has various diameters. Since fastening members such as a drill screw, a hexagon nut, and a hexagon bolt can be fastened, the number of tools to be carried can be reduced by that much, so that the trouble of the conventional work can be completely eliminated.

In this embodiment, when the cylindrical body 1 is mounted on the bit body 2 so that the bit portion 3 protrudes from the end of the cylindrical body 1 (a state that can be used as a driver), The amount of protrusion a of the bit portion 3 from the end face of the body 1 is determined by the depth b of the groove 16a such as a screw or screw 16 into which the bit portion 3 is fitted when the bit portion 3 is fitted into a groove 16a such as a screw or screw.
If it is set to be substantially equal, the bit 3 slightly projecting from the end face of the cylindrical body 1 is fitted into the groove 16a such as a screw or a screw, and the electric rotating tool A is operated to rotate the bit 3. , Screws 16 and the like begin to screw into the screw-in member, and when the end surface of the cylindrical body 1 comes into contact with the screw-in surface of the screw-in member, it receives a reaction force from the screw-in member, and Numeral 3 is to prevent as much as possible the screws, screws and the like from rotating excessively, such as coming off from the screws and screws. In addition, as a method of adjusting the protrusion amount a of the bit portion 3, the first curved locking groove 2a and the second curved locking groove 2b
In addition to this, it is possible to appropriately design such as providing another groove.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a state in which a cylindrical body according to the present embodiment is mounted on a bit body.

FIG. 2 is a schematic operation explanatory diagram according to the embodiment.

FIG. 3 is a schematic operation explanatory diagram according to the embodiment.

FIG. 4 is a schematic operation explanatory diagram according to the embodiment.

FIG. 5 is a schematic operation explanatory diagram according to the embodiment.

FIG. 6 is an explanatory diagram of a use state of the present embodiment.

[Explanation of symbols]

 Reference Signs List A Electric rotating tool a Projection amount b Depth 1 Cylindrical body 2 Bit body 3 Bit part 4 First hole 5 Second hole

Claims (2)

(57) [Claims] Bit portion to 1. A both ends is attached to the electric rotating tool
The chuck of the electric rotating tool is formed near the both bit parts.
First curved locking groove for connecting with the first portion, the first curved locking groove
A cylindrical body to be attached to the bit body has a second curved engagement grooves formed in the vicinity of people, both ends of the cylindrical body is a hole in plan view a polygon, one end of the cylindrical body Of the first hole provided in
The diameter differs from the diameter of the second hole provided at the other end of the cylindrical body.
The diameter of the cylinder is set to
Are fitted, and a spring is provided between the inner cylinder and the outer cylinder so that both
Is slidable against the elasticity of the spring,
At the position where the outer cylinder of the cylinder is mounted
Is formed, and a steel ball is disposed in the through hole.
The installation state of the outer cylinder against the inner cylinder is
The steel ball located in the through hole of the inner cylinder moves
When the outer cylinder is returned to the available state, the steel ball
Becomes immovable and slightly projects inward from the through hole
The first curved locking groove or the
It is set so as to be locked with the two-curved locking groove, and when the cylinder is mounted on the bit , the cylinder is in a detented state with respect to the bit and not movable in the length direction of the bit in is configured so that is mounted, the mounting position for the bit body of the tubular body, the electric times dawg using one of the first curved engaging groove
When the bit body is connected to the chuck portion, the other first bending
If the steel ball is locked in the locking groove, the bit
It is set to a position that is immersed a specified distance from the end of the body.
On the other hand, when the steel ball is locked in the second curved locking groove
Is set at a position where the bit protrudes from the end of the cylinder.
The amount of protrusion of the bit portion protruding from the end of the cylindrical body is set to be substantially equal to the depth of a groove portion such as a screw or a screw into which the bit portion is fitted. Accessories for moving gear. 2. The accessory for an electric rotating tool according to claim 1, wherein a hexagonal hole in plan view is adopted as a polygonal hole in plan view provided at an end of said cylindrical body. Accessories for electric rotating tools.