KR101475877B1 - Multi directional screwdriver bit adapter - Google Patents

Abstract

The present invention relates to an adapter for a driver bit, which is inserted into a driving portion of an electric drill main body to perform a screwing operation of a screw bit,
A rotation transmitting member 370 coupled to one end of the bit socket 330 so that the bit socket 330 can be rotated at a free angle, The cover connector 380 is fitted to the outer surface of the connection portion of the rotation transmitting member 330 and the rotation transmitting member 370 so as to be able to select the angle adjustment of the bit socket 330. In the present invention, And more particularly to an adapter for a multi-directional driver bit.

Description

An adapter for a multi-directional screwdriver bit adapter

More particularly, the present invention relates to an adapter for a driver bit, and more particularly, to an adapter for a driver bit, which is inserted into a driving portion of an electric drill main body, And a driver bit having a rectangular fitting portion capable of engaging a socket wrench at the time of fastening hexagonal bolts or nuts or the like is used to assist in fastening. More particularly, the present invention relates to an adapter for a multi-directional screwdriver capable of easily and easily performing a disassembly operation by adjusting the angle of the bit socket from the rotation transmitting member to the multi-directional direction when fastening a screw or the like in a narrow space.

The conventional electric screwdriver currently provided is a screwdriver that connects a screwdriver bit formed in the head of a screw or a screw that coincides with a cross groove, to an adapter coupled to a driving part of the electric drill, Bolts, nuts, and the like have been fastened by engaging a driver bit having a rectangular fitting portion capable of engaging a socket wrench for use in fastening bolts, nuts, and the like.

However, such a conventional electric screwdriver is configured in such a way that the connection portion between the driver and the rotation transmitting member can not adjust the angle, and when the work space is narrow, when the bolt is fastened or disassembled in the horizontal, It is difficult to use an electric screwdriver tool and it must be fastened manually by a hand wrench with a short wrench or screw driver, so that the work speed is delayed and the work difficulty is higher.

1, a socket wrench adapter of Korean Patent Laid-Open Publication No. 2010-0119736 includes a square fitting shaft portion 111 for detachably mounting a socket wrench 10, a driver bit 20, (112), a tightening portion (113), and a retaining ring (120) passing through the through hole (112)

A square fitting shaft portion 111 for detachment of the socket wrench 10 is formed on one side of the cylindrical body 110 and is inserted through the body 110 from the end of the fitting shaft portion 111, And a tightening portion 113 having a plurality of slit grooves 113a and male screws 113b formed on a circumference thereof on the opposite side of the body on which the fitting shaft portion 111 is formed is integrally projected rearward And a fixing ring 120 which is fastened to the male screw 113b of the tightening part 113 and fixes the driver bit 20 passing through the body is screwed.

The prior art socket wrench adapter having such a configuration also has a problem in that it needs to be replaced with another adapter or fastened by hand in order to perform a horizontal, vertical or inclined direction operation in a narrow work space.

In order to solve these problems, adapters have been developed and supplied in various forms, but the users have incurred an economic burden to use them with different adapters.

Korea Patent Publication No. 119736

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide an electric screwdriver capable of freely adjusting a direction angle of a driver so as to correspond to a condition of a work environment without replacing an adapter of an electric screwdriver, It is an object of the present invention to provide an adapter for a driver bit that can be easily fastened and disassembled into a screw hole, a nut, a hexagonal bolt, and the like.

According to an aspect of the present invention,

A bit socket to which the driver is coupled,

A rotation transmitting member coupled to one end of the bit socket so that the bit socket can be rotated at a free angle;

And an adapter for a driver bit, to which a cover connector is coupled so as to be able to select the angle adjustment of the bit socket by inserting the connection portion between the usual bit socket and the rotation transmitting member on the outer surface.

The bit socket includes an insertion portion for coupling the driver bit to one side and a rotation portion insertion groove for receiving the rotation portion of the rotation transmitting member and a fixing groove for mounting the magnet inside the rotation portion insertion groove.

The rotation transmitting member is composed of a rotating part that is inserted into one of the rotary part insertion grooves of the bit socket and an engaging stick part that is connected to the driving part of the electric drill.

The bit socket is provided with a release preventing member at one end thereof, a through hole is formed at one side of the release preventing member and the bit socket, and a fixing ball is provided. The outer surface of the bit socket is fixed to the ring fixing groove Is formed.

The rotation transmitting member is formed at one end thereof with a rotating part in the shape of a circle having a plurality of outer surfaces, and at one side of the rotating part is formed a stepped engaging part to which the bit socket rotating part inserting groove rim is engaged, And is integrally formed.

The rotary part of the rotation transmitting member has a polygonal outer surface and the inner surface of the rotary part insertion groove of the bit socket is formed into a polygon corresponding to an outer polygon of the rotary part and is coupled to each other.

The bit socket is characterized in that a bending angle is formed in multiple directions around the rotary part by a rotation insertion groove into which the rotation part of the rotation transmitting member is fitted.

The cover connector coupled to the outer surface of the bit socket and the rotation transmitting member is slid to the left and right, and a plurality of concave and convex portions are formed on the outer surface.

According to another embodiment of the present invention, the one end fitting portion of the driver bit adapter is formed of a polygonal wrench having a fixing ball at one side, and is connectable to the wrench bolt and the bolt adapter.

"형으로 선택조절하여 사용함으로 볼트, 너트, 렌치볼트 등을 간단 용이하게 해체 및 조립할 수 있도록 한 것이다.
According to the present invention, when the driver bit is inserted into the driver bit adapter, the angle of the driver is changed to "

"Type, it is possible to easily disassemble and assemble bolts, nuts, and wrench bolts.

According to the present invention, an adapter for a driver bit, which is inserted into an electric drill main body to perform a bolt tightening operation, can freely adjust an angle according to a use environment, so that even if a bolt is assembled and dismantled, It is convenient to work the bolt in horizontal, vertical or inclined direction by using the driver bit adapter without replacing it. In addition, when the wrench bolt is fastened and disassembled, it is replaced by bit socket with polygonal wrench. So that the head of the bolt can be easily and easily used regardless of the wrench bolt having the grooves of the "+" grooved "+ " grooved bolt or the polygon at the time of work, thereby shortening the working time.

1 is an exploded perspective view of a conventional socket wrench adapter,
2 is a perspective view showing an adapter for a driver bit according to the present invention,
3 is an exploded perspective view showing an adapter for a driver bit according to the present invention,
4 is a cross-sectional view taken along the line AA of Fig. 2 of the adapter for a driver bit according to the present invention,
Fig. 5 is a sectional view taken along line BB of Fig. 4 of the adapter for a driver bit according to the present invention,
6 is a cross-sectional view showing an operating state of an adapter for a driver bit according to the present invention,
FIG. 7 is a side view showing a connection and operation state of an adapter for a driver bit and an electric driver according to the present invention,
8 is a cross-sectional view showing another embodiment of the adapter for a driver bit according to the present invention,
Fig. 9 is a cross-sectional view taken along line CC of Fig. 8 showing another embodiment of the adapter for a driver bit according to the present invention,
10 is a perspective view showing another embodiment of the adapter for a driver bit according to the present invention,
11 is a perspective view of an adapter for a driver bit in which a bit socket one-side fitting portion is formed of a polygonal wrench, according to another embodiment of the present invention,
12 is a side view of an adapter for a driver bit in which the one-side fitting portion of the bit socket of the present invention is formed of a polygonal wrench.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view showing an adapter for a driver bit according to the present invention. The adapter 300 for a driver bit of the present invention is composed of a bit socket 330, a pre-rotation transmitting member 370, and a cover connector 380.

The bit socket 330 is formed with a fitting portion 331 at one end thereof so that the driver bit 20 can be inserted thereinto and on the other side, A rotation part insertion groove 333 is formed.

The rotation transmitting member 370 has a rotary part 371 formed at one end thereof in the shape of a circular arc and is fitted into the rotary part insertion groove 333 of the bit socket 330 to be assembled, (372) is formed to be coupled to the electric drill (1).

The cover connector 380 is fitted to the outer surface of the rotation socket 373 of the rotation socket 370 of the bit socket 330 to engage the rotation socket 373 of the rotation socket 370, .

"형으로 절곡 각을 선택조절하여 사용함으로 볼트, 너트, 렌치볼트, 볼트 어댑터 등을 간단 용이하게 해체 및 조립할 수 있도록 한다.
The cover connector 380 uses the driver bit in a "-" shape when the rotation part insertion groove 333 of the bit socket 330 and the rotation part 371 of the rotation transmitting member 370 are engaged, When the connector 380 is pushed to the bit socket 330 side in a sliding manner, the cover connector 380 is moved from the position of the rotation part insertion slot 333 of the bit socket 330 to the rotation part 371 of the rotation transmitting member 370, So that the rotary part 371 of the rotation transmitting member 370 is rotated in the rotary part inserting groove 333 of the bit socket 330 so that the dry bit is moved from the "

"Type, it is possible to easily disassemble and assemble bolts, nuts, wrench bolts, bolt adapters, etc.

FIG. 3 is an exploded perspective view showing an adapter for a driver bit according to the present invention, FIG. 4 is a cross-sectional view taken along line AA of FIG. 2 of the adapter for a driver bit according to the present invention, 4 is a BB line sectional view.

3 is an exploded perspective view of a driver bit adapter 300 including the bit socket 330 of the present invention, the rotation transfer transmission member 370, and the cover connector 380. As shown in FIG.

The bit socket 330 is formed with a fitting portion 331 for coupling the driver bit 20 to one side.

The release member 331 is coupled to the outer surface of the release preventing member 310 so that the fixing ball 320 installed at one side wall hole of the bit socket 330 is prevented from being released to the outside.

The fixing ball 320 installed at one side of the fitting portion 331 maintains a firmly fitted state without releasing the driver bit inserted into the fitting portion of the bit socket.

The other side of the bit socket 330 is formed with a rotation part insertion groove 333 into which the rotation part 371 of the rotation transmission member 370 is inserted and a magnet 350 Is provided to prevent the rotation part inserted into the rotation part insertion groove 333 from being arbitrarily disengaged.

The rotation part 371 is formed in a polygonal shape having a circular shape and is formed at the inner circumferential surface of the rotation part insertion groove 333 into which the rotation part 371 is inserted at an angle corresponding to the shape of the polygon formed on the outer surface of the rotation part 371, So that the driving force rotated by the drill can be transmitted to the bit socket (see FIG. 5).

A coupling stick 372 is formed on the other axis of the rotation transmitting member 370 and connected to the driving unit of the electric drill 1. The engaging stick portion 372 has a plurality of outer surfaces, so that the driving force of the electric drill can be smoothly transmitted.

The bit socket 330 is formed with a ring fixing groove 332a in which the coupling ring 340 is fitted to the outer surface of the other end where the release preventing member 310 is installed.

The rotation transmitting member 370 of the driver adapter of the present invention has a hexagonal column-shaped engaging portion 372 for engaging with the driving portion of the electric drill 1 on one side of the cylindrical body, To the rotation part 371 having a hexagonal ball shape formed on the other side.

The side surface of the bit socket 330 in which the rotation part insertion groove 333 for receiving the rotation part 371 formed at one side of the rotation transmitting member 370 is accommodated in the body is provided inside the rotation transmitting part 370, A release preventing groove 333a into which the rotation part departure prevention ring 360 can be inserted is formed.

A magnet fixing groove 332b for accommodating a magnet 350 for preventing the rotation transmitting portion 370 and the bit socket 330 from falling off is formed at the inside of the rotating portion inserting groove 333, do.

As another embodiment of the present invention, the other side of the rotation part insertion groove 333 may be provided with an insertion portion (not shown) for coupling with the driver bit 20 having a straight or cross- 331 may be formed with hexagonal holes.

The outer periphery of the rotation part insertion groove 333 for engaging with the rotation part 371 of the rotation transmitting member 370 is fixed to the bit socket 330 when the bolt is fastened and disassembled in the direction of " The cover connector 380 is slid to one side so as to form a "-" shape or a bent shape. At this time, in order to prevent the sliding cover connector 380 from being detached, (340).

The magnet 350 is installed at the inner end of the rotation part insertion groove 333 formed at one side of the bit socket 330 so that the rotation part 371 of the rotation transmission member 370 When inserted into the rotary part insert groove 333, the rotary part tip is brought into close contact with the magnet.

Also, since the magnet has a self-fixing force, the driver bit prevents the bit socket 330 and the rotation transmitting portion 371 from falling off when working in the horizontal direction or the vertical direction.

FIG. 6 is a cross-sectional view illustrating an operation state of the adapter for a driver bit according to the present invention, and FIG. 7 is a side view illustrating an operation and connection state of the driver bit adapter and the electric driver according to the present invention.

The bit socket 330 of the adapter 300 for a driver bit of the present invention is rotated around the rotation portion 370 by the rotation portion insertion groove 333 in which the rotation portion 371 of the rotation transmission member 370 is fitted, As shown in Fig.

The rotary portion 371 fitted to the rotary portion insertion groove 333 is bent at a predetermined angle in the rotary portion insertion groove 333.

"형과 같이 절곡됨으로써 볼트, 렌치볼트 등을 체결 및 해체시 좁은 공간에서도 원활하게 작업을 할 수 있게 된다. The overall bent angle of the bit socket 330 and the rotation transmitting member 370, which is bent,

"Type, it is possible to smoothly work in a narrow space when fastening and disassembling bolts, wrench bolts, and the like.

More specifically, the bit socket 330 and the rotation transmitting member 370 are coupled to each other to connect the receiving portion 381 of the cover connector 380 with the coupling ring 340 formed on the outer peripheral surface of the bit socket 330 And is used in combination with the electric drill 1.

 When using a driver bit 20 having a common slot or a cross groove, it is preferable that the bit slot 330 of the driver bit adapter coupled with the electric drill is coupled to the insert portion 331 for engagement with the driver bit 20 You can also loosen the bolts in reverse by tightening the bolts or using the buttons on the electric drill.

When the bolts formed in the horizontal direction or the vertical direction are carried out as described above, the cover 380 formed on the adapter 300 for a driver bit is inserted into the socket 300 where the bit socket 330 and the rotation transmitting portion 370 are coupled So that the work is performed.

However, in the case where the work space is narrow and the bolt is difficult to be fastened by the above-described method and the bolt is formed at an inclined position even if the work space is sufficient, the unevenness of the cover connector 380 382 are formed and the rotation part 371 formed at one side of the bit socket 330 is moved to a position slightly inserted into the end of the rotation part insertion groove 333 formed with the release preventing groove 333a, Of the rotary drill 1 may be pulled forward to tighten the bolt formed at a slant or a narrow work space at a certain angle with the rotation transmitting member 370 coupled to the electric drill 1,

FIG. 8 is a cross-sectional view showing another embodiment of the adapter for a driver bit according to the present invention, FIG. 9 is a cross-sectional view taken along the line CC of FIG. 8 showing another embodiment of the adapter for a driver bit according to the present invention, Sectional view showing another embodiment of the adapter for the driver bit according to the second embodiment of the present invention.

8, 9 and 10 illustrate another embodiment of the present invention in which protrusions 371a are formed on the outer surface of one rotation part 371 of one rotation transmitting member 370, A protrusion groove 333a corresponding to the protrusion 371a is formed on the outer peripheral edge of the rotary part 371 on the inner peripheral surface of the rotary part insertion groove 333 of the socket 330 so that the driving force of the electric drill 1 is transmitted to the bit socket 330 and / So that it can be transmitted to the driver bit 20 without loss.

A protrusion 371a is formed at each corner of the hexagonal ball shaped rotary part 371 and a protrusion 371a is formed in the rotary part insertion groove 333 of the bit socket 330 to which the rotary part 370 is coupled. May be formed and coupled with the protrusion groove 333b.

A protrusion 371a is formed at each corner of the hexagonal ball shaped rotation part 371 formed at one side of the rotation transmission part 370 and a hexagonal shape of the bit socket 330 to which the rotation part 371 is coupled The electric drill 1 is formed by combining the bit socket 330 and the rotation transmitting portion 370 by forming protruding grooves 333b capable of engaging with the protrusions 371a on each corner of the inner circumferential surface of the rotating portion insertion groove 333, So that the torque of the driver bit 20 and the bit socket 20 can be transmitted without any loss of power.

FIG. 11 is a perspective view of an adapter for a driver bit according to another embodiment of the present invention. FIG. 12 is a perspective view of an adapter socket for a driver bit according to another embodiment of the present invention. Lt; RTI ID = 0.0 > driver bits. ≪ / RTI >

11 and 12 illustrate another embodiment of the present invention in which the one side fitting portion 331 of the bit socket 330 is formed of a polygonal wrench 400 and an adapter is inserted into a wrench bolt or a hexagonal and polygonal bolt head And the polygonal wrench 400 can be inserted when the bit socket 330 is coupled to the adapter.

According to the present invention configured as described above, a user can easily fasten screws, bolts, nuts, or the like simply by replacing the driver bits 20 without replacing other adapters even in a place where the work space is narrow.

In other words, it is possible to fasten hexagonal bolts, nuts, and the like by fastening a screw having a cruciform head and connecting a socket wrench to a replaced driver bit by simply replacing the driver bit 20.

In addition, it is possible to easily fasten screws, bolts, nuts, and the like even in a place where an angle other than vertical and horizontal directions is formed.

300: Adapter for driver bit 310:
320: fixing ball 330: bit socket
331: fitting portion 333: rotating portion insertion groove
340: coupling ring 350: magnet
360: a release preventing ring 370: a rotation transmitting portion
371: rotating part 372: engaging stick part
373: Coupling portion 380: Cover connector
381: receiving portion 382: concave / convex portion
400: Polygon wrench

Claims (7)

A bit socket 330 coupled with the driver bit 20,
A rotation transmitting member 370 coupled to one end of the bit socket 330 so that the bit socket 330 can be rotated at a free angle,
And a cover connector (380) slidably coupled to the outer surface of the connection portion of the bit socket (330) and the rotation transmitting member (370) so as to select the angle adjustment of the bit socket (330)
The coupling bit socket 330 has a fitting portion 331 for coupling the driver bit 20 to one side and a rotary portion insertion groove 331 for receiving the rotary portion 371 of the rotation transmitting member 370, (333), and a magnet (350) is installed in a magnet fixing groove (332b) formed inside the rotation part insertion groove (333). delete The method according to claim 1,
The bit socket 330 is formed with a through hole on one side surface of the fitting portion 331 and is provided with a fixing ball 320. The fixing ball 320 is provided on the outer surface of the fitting portion with a separation preventing member 310, And a ring fixing groove (332a) in which the coupling ring (340) is inserted is formed on the other end outer surface of the bit socket. The method according to claim 1,
The rotation transmitting member 370 is formed with a rotation part 371 at one end thereof and a coupling part 373 with a step at which a rim of the bit socket rotating part insertion groove 333 is coupled is formed at one side of the rotation part 371, And a hexagonal coupling member (372) coupled to the electric drill driving unit is integrally formed on the side of the adapter. The method of claim 1, wherein
Wherein the rotation part 371 of the rotation transmitting member 370 has a polygonal outer surface and the inner surface of the rotary part insertion groove 333 of the bit socket is formed in a polygonal shape corresponding to an outer polygon of the rotary part 371. [ Adapter for driver bits. The method according to claim 1,
The bit socket 330 is formed in a bending angle or a polygonal shape in multiple directions around a rotary part by a rotation part insertion groove 333 into which a rotation part 371 of a rotation transmitting member 370 is fitted. adapter. The method according to claim 1,
Wherein one end fitting portion 331 of the bit socket 330 is formed of a polygonal wrench 400 having a fixing ball 320 at one side so as to be connected to a wrench bolt and a bolt adapter. Adapter for bit.

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