JP2001025978A - Manual rotary tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rotate various kinds of screws, bolts and nuts of different size by one tool or minimum number tools, and to give a large rotational torque to the screws, bolts and nuts. SOLUTION: In this tool, a driver bit 2 with screw engagement parts 4, 4 on both ends is provided in an invertible, drawable, and non-rotational manner in an insertion hole part 3 formed in the axial direction of a handle at the tip side of the handle 1, and a first socket part 5 and a second socket part 6 to rotate a bolt or a nut of different size are formed on a tip part and a base end part of the handle 1. In addition, a through hole part 7 in which the driver bit 2 is drawable in a non-rotational manner is provided in a direction orthogonal to the axial direction at a center part of the handle 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual rotary tool combining a screwdriver and a socket wrench, and more particularly to a manual rotary tool used for tightening and loosening hexagon bolts or hexagon nuts.

[0002]

2. Description of the Related Art Conventionally, a commonly used driver includes a fixed driver in which a driver bit is integrally attached to a handle (grip portion), or several types of driver bits are detachably attached to a common handle. There is a replacement screwdriver or the like, but none of the drivers can be used for purposes other than screwdriver.

[0003] A socket wrench is generally provided with a handle for rotating bolts or nuts of different sizes at one end or both ends of a handle. It cannot be used for purposes other than rotating bolts or nuts.

[0004] The above-mentioned conventional screwdrivers and socket wrenches have a long history, and have been improved so as to be suitable for their applications, and have established a firm position as tools having sophisticated functions. Actually, there are various kinds of screws, bolts and nuts of different sizes at the site where they are used, so it is necessary to carry multiple types of drivers and socket wrenches to cope with them, Is always troublesome.

[0005]

SUMMARY OF THE INVENTION In view of the above situation, the present invention aims at solving various screws, bolts and nuts having different sizes with one tool or a minimum number of tools. It is an object of the present invention to provide a manual rotating tool that can be rotated and can apply a large rotating torque to screws, bolts and nuts.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a screw hole is formed at an end portion of a handle in an axial direction of the handle. A driver bit having a portion formed therein is provided so as to be able to be inverted and inserted and inserted so as not to rotate, and a first socket portion and a second socket portion are formed at the distal end portion and the proximal end portion of the handle for rotating bolts or nuts having different sizes. And
Further, a manual rotary tool is provided in which a through hole is provided at a central portion of the handle so that the driver bit can be inserted and removed in a direction orthogonal to the axial direction of the handle so that the driver bit cannot be rotated.

This manual rotary tool can rotate two kinds of screws by screw engagement portions formed at both ends of a driver bit, respectively, and has second and third screws provided at a distal end and a proximal end of a handle, respectively. Bolts or nuts of different sizes can be rotated between the first socket portion and the second socket portion. Also, when rotating the bolt or nut, pull out the driver bit from the insertion hole of the handle, insert it into the through hole of the handle, and protrude in the direction perpendicular to the rotation axis direction of the handle. If it is rotated with the rotation, a large rotation torque can be obtained.

The present invention, in addition to the above-described structure, further comprises a first engaging means and a second engaging means elastically engageable with an engaging recess formed on the outer periphery of the driver bit. The driver bit is held in the insertion hole portion or the through hole of the handle without being easily pulled out by being provided in the portion and the through hole so as to protrude, respectively.

[0009] Further, when the nut is rotated at the second socket portion on the base end side of the handle, a retreat hole for allowing the bolt shaft portion to escape is formed continuously from the second socket portion to the central portion of the handle. By forming the bolt shaft portion, it is possible to receive the bolt shaft portion in the evacuation hole portion and rotate the nut even when the bolt shaft portion protrudes greatly from the nut.

According to the present invention, a non-rotatable socket body which is movable in the axial direction along the outer periphery of the driver bit and which can be pulled out of the driver bit is fitted to the driver bit. Forms a third socket portion and a fourth socket portion having different inner dimensions, and rotates the outer shapes of the third socket portion and the fourth socket portion to one of the first socket portion and the second socket portion. The shape is such that it cannot fit inside.

By using this socket body, it is possible to rotate bolts or nuts of further different sizes using the third socket portion and the fourth socket portion. Actually, the socket body is externally fitted to the driver bit attached to the handle, and one of the third socket portion and the fourth socket portion is used. When the other is used, the direction of the socket body is reversed and the driver bit is inverted. Attach to
Here, when the socket body is not used, the socket body is extrapolated deeply into the driver bit and the third
One of the socket and the fourth socket is fitted into the first socket.

Further, after the driver bit is removed from the insertion hole of the handle and mounted in the through hole, one of the third socket portion or the fourth socket portion of the socket body is connected to the first socket portion or the fourth socket portion of the handle. The bolt or nut can be rotated with a larger rotating torque by fitting into the recess of the two socket portion and rotating the handle with the driver bit using the other.

Further, the socket main body has a third engaging / removing engagement recess formed on the outer periphery of the driver bit.
When the engaging means is provided to hold the socket body at the driver bit at a position where each of the third socket section and the fourth socket section can be used, the third socket section and the fourth socket section of the socket body become When the bolt or the nut is rotated, it is preferable because the socket body does not unexpectedly move along the driver bit.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 to 4 show a first embodiment of a manual rotary tool according to the present invention, and FIGS. 5 to 9 show a second embodiment. In the drawings, reference symbol A denotes a screwdriver, B denotes a socket body, 1 denotes a handle, 2 Indicates driver bits.

The driver A constituting the manual rotary tool according to the present invention is provided with an insertion hole 3 formed on the distal end portion A1 side of the handle 1 in the axial direction of the handle 1 and a screw engagement portion on each end. 4 is provided so as to be able to be inserted / removed and cannot be rotated, and a first socket part 5 and a first socket part 5 for rotating bolts or nuts having different sizes at the distal end portion A1 and the proximal end portion A2 of the handle 1 are provided. 2 a socket portion 6 is formed, and a central portion A3 of the handle 1 is further formed.
And a through hole 7 through which the driver bit 2 can be inserted and removed in a direction perpendicular to the axial direction of the handle 1 so that the driver bit 2 cannot be rotated.

More specifically, the handle 1 has a metal core 8 continuously arranged in the axial direction inside thereof, and a gripping member made of hard rubber or synthetic resin at a distal end portion A1 and a proximal end portion A2, respectively. 9 are integrally arranged. still,
The central portion A3 of the handle 1 may be such that the metal core 8 is exposed or covered with the gripping material 9. Further, even if the metal core material 8 is a continuous one-piece, a plurality of members are welded and joined to be integrated, for example, a member at the distal end A1 side and a member at the proximal end A2 side are members of the central part A3. May be welded together. And such a handle 1
Is manufactured by vulcanization molding when the gripping material 9 is made of rubber, or by insert molding when made of synthetic resin.

The metal bit 8 corresponding to the tip A1 of the handle 1 can be inserted in a manner that allows the driver bit 2 to be inserted and removed in an invertible and non-rotatable manner in accordance with the cross-sectional shape of the driver bit 2. The attachment hole 3 is formed to be open to the tip. In this embodiment, since the cross-sectional shape of the driver bit 2 is a regular hexagon, the insertion hole 3 is also a substantially regular hexagonal hole.

The distal end portion A1 and the proximal end portion A of the handle 1
The first and second socket portions 5 and 6 are formed in the metal core material 8 corresponding to the first and second metal cores 8, respectively. The first socket portion 5 and the second socket portion 6 are concave portions having a shape such that a regular hexagonal bolt head or nut is fitted therein and can be rotated. In the present embodiment, the recessed shapes of the first socket portion 5 and the second socket portion 6 have a so-called so-called outer shape of a figure in which two regular hexagons are overlapped with a rotation angle shifted by 30 degrees as shown in FIG. It is described as "Kikugata". In addition, the size of the first socket portion 5 is 13 and the size of the second socket portion 6 is 17, but they may be different sizes, and the size relationship may be reversed.

The metal core 8 corresponding to the central portion A3 of the handle 1 is provided with a through hole 7 through which the driver bit 2 can be inserted and removed in a non-rotatable manner in a direction perpendicular to the axial direction of the metal core 8. Is formed. The shape of the through hole 7 is a substantially regular hexagonal hole as in the case of the insertion hole 3.

Further, the second socket portion 6 on the base end portion A2 side of the handle 1 is provided with a retreat hole portion 10 for allowing a bolt shaft portion to escape when rotating a nut screwed into the cut bolt.
In the metal core 8 corresponding to the base end A2 of the handle 1,
It is formed continuously from the inside of the second socket portion 6 to the central portion A3 of the handle 1.

Further, in this embodiment, when the driver bit 2 is inserted into the insertion hole 3 and the through hole 7 of the handle 1 and used, the driver bit 2 is prevented from moving or coming off easily. A mechanism for performing the operation. That is, on the outer periphery near both ends of the driver bit 2,
When the engagement recesses 11 and 11 are formed, and the driver bit 2 is inserted into the insertion hole 3 or the through hole 7,
First engagement means 12 elastically engageable with the engagement recess 11
And the second engaging means 13 are provided in the insertion hole 3 and the through hole so as to be protrudable, respectively.

The first engaging means 12 includes the metal core 8
A hole 12A penetrating through the insertion hole 3 is formed in the hole 12A.
A sphere 12 </ b> B is provided so as to be movable inside and outside and cannot penetrate into the insertion hole 3, and a part of the sphere 12 </ b> B is elastically biased inward so as to protrude into the insertion hole 3. A part of the sphere 12 </ b> B protruding into the portion 3 is engaged with the engaging recess 11 of the driver bit 2. That is, in the present embodiment, the inner end of the hole 12A is set to have a hole diameter smaller than the diameter of the sphere 12B, and the inner end of the hole 12A is used as an elastic urging means for the sphere 12B based on the thickness of the metal core material 8 having the hole 12A. The diameter of the sphere 12B is set to be large, a part of the sphere 12B is always protruded outward from the metal core member 8, and the protruding portion is urged inward by the elastic holding member 9.

On the other hand, the second engaging means 13 forms a hole 13A penetrating from the bottom of the retreat hole 10 to the through hole 7 in the metal core member 8, and moves the sphere 13B in and out of the hole 13A. The sphere 13
Part B is elastically urged inward so as to protrude into the through-hole 7, and part of the sphere 13 </ b> B protruding into the through-hole 7 engages with the engaging recess 11 of the driver bit 2. Things. That is, in the present embodiment, the inner end of the hole 13A is set to have a smaller hole diameter than the diameter of the sphere 13B, and the closing member 13C and the sphere 13B fixed to the bottom of the retreat hole 10 as elastic urging means of the sphere 13B. And a compression coil spring 13D interposed therebetween. Although the first engagement means 12 and the second engagement means 13 have a ball plunger structure in the present embodiment, they may be constituted by using an elastic member such as a leaf spring.

In the driver A thus constructed, the driver bit 2 is mounted in the insertion hole 3 of the handle 1 as described above, and the screw engagement portions 4 and 4 formed on both ends of the driver bit 2 respectively. Thus, it is possible to rotate two kinds of screws, that is, a plus screw and a minus screw, in the same manner as a conventional fixed screwdriver. Here, when it is desired to apply a large rotational torque to the driver bit 2, as shown in FIG. 4, the driver bit 2 is pulled out from the insertion hole portion 3, and is attached to the through hole portion 7 as described above. The bit 2 and the handle 1 constitute a substantially T-shaped rotary tool, and the handle 1 can be held and rotated. In this state, if you hold the driver bit 2 and rotate it,
It is possible to rotate bolts or nuts of different sizes in the first socket part 5 or the second socket part 6. Also in this case, since the driver bit 2 protrudes largely from the rotation axis of the handle 1, a large rotation torque can be applied.

Next, the use of the manual rotary tool according to the present invention is further expanded by combining the driver A with the socket body B described below. This socket body B is shown in FIG.
7 to FIG. 7 and examples used in combination with the driver A are shown in FIG. 8 and FIG. That is, the socket body B is movable in the axial direction along the outer periphery of the driver bit 2 and can be pulled out of the driver bit 2 but cannot rotate, and both ends have third internal diameters different from each other. Socket part 14 and fourth socket part 15
And the outer shape of the third socket portion 14 and the fourth socket portion 15 is shaped so as to be non-rotatably fitted into one of the first socket portion 5 and the second socket portion 6. is there.

More specifically, the socket body B is a cylindrical body penetrating in the axial direction. The socket body B has an engaging hole portion 16 in which the driver bit 2 can be non-rotatably inserted. The third socket portion 14 and the fourth socket portion 15 are formed in the respective portions. Here, the third socket portion 14 and the fourth socket portion 15 are recessed portions 14A and 15A having a shape such that a regular hexagonal bolt head or nut is fitted therein and can be rotated.
A shape in which the outer shape of a figure in which two regular hexagons are overlapped with a rotation angle shifted by 30 degrees as shown in FIG. 6 according to the concave shape of the first socket part 5 and the second socket part 6,
The so-called "chrysanthemum-shaped" engaging portions 14B and 15B. For example, the size of the concave portion 14A of the third socket portion 14 is 8 sizes, the size of the concave portion 15A of the fourth socket portion 15 is 12 sizes, and the engaging portion 14B of the third socket portion 14 is formed.
Is 13 sizes, the engaging portion 1 of the fourth socket portion 15
The size of 5B is 17 sizes. The engagement hole 16 at the center and the recess 14A of each third socket 14
And the recess 15 </ b> A of the fourth socket part 15,
It continues at 7,18.

Further, the socket body B is provided with third engaging means 19 which can be engaged with and disengaged from the engaging recesses 11 formed on the outer periphery of the driver bit 2.
The socket body B is held by the driver bit 2 at a position where the fourth and fourth socket portions 15 can be used.

The third engagement means 19 is provided in the socket body B
A sphere 21 having a diameter larger than the depth of the hole 20 is fitted into the same hole 20 provided at the center of the hole and penetrating the engagement hole 16, and a sleeve 22 is fitted around the outer periphery in the axial direction. The sleeve 22 is provided with an annular convex portion 22A that abuts the sleeve 22 on the outside of the sphere 21 to maintain a part of the sphere 21 protruding into the engagement hole portion 16, and the sphere 21 is engaged with the sleeve 22. An annular concave groove 22 </ b> B allowing the state of being immersed in the hole 16 is formed continuously in the axial direction, and is always annularly convex by a compression coil spring 23 interposed between the socket body B and the sleeve 22. The sleeve 22 is elastically urged in one direction and the sleeve 22 is stopped by a stop ring 24 externally fitted to the socket body B so that the portion 22A comes into contact with the outside of the spherical body 21. More specifically, the compression coil spring 23 is disposed closer to the fourth socket portion 15 than the hole 20, one end of the compression coil spring 23 abuts the enlarged diameter portion 25 of the socket body B, and the other end of the compression coil spring 23 Part 22
A step 26 provided on the side of the third socket 14 with respect to the annular groove 22 </ b> B is abutted against the stop ring 24. Of course, the annular groove 22B is provided closer to the third socket portion 14 than the annular protrusion 22A, and the sleeve 22 is moved against the elastic force of the compression coil spring 23 to move the annular groove 22B to the outside of the sphere 21. It is located.

As shown in FIG. 8, the socket body B is used by being externally inserted into the distal end of the driver bit 2 with the driver bit 2 mounted in the insertion hole 3 of the handle 1. Here, when the socket body B is extrapolated to the tip of the driver bit 2, the sleeve 22 is moved to position the annular groove 22B outside the spherical body 21,
In this state, after inserting the driver bit 2 into the engagement hole 16 of the socket body B, when the sleeve 22 is released and the socket body B is moved along the driver bit 2, the sphere 21 moves to the position of the engagement recess 11. The sleeve 22 is moved by the elastic force of the compression coil spring 23, and the annular convex portion 22A pushes the sphere 21 into the engagement hole 16, and the sphere 2
A part of the engaging portion 1 engages with the engaging concave portion 11.

In this state, the concave portion 1 of the third socket portion 14
The bolt or the nut is fitted into the recess 15A of the 4A or the fourth socket portion 15 and rotated. The selection of the third socket part 14 or the fourth socket part 15 is determined by the direction of the socket body B inserted into the driver bit 2. still,
When the socket body B is not used, from the state of FIG.
While moving the sleeve 22 against the elastic force of the compression coil spring 23 to position the annular groove 22B outside the spherical body 21, the socket body B is moved to the base of the driver bit 2, and the third socket part 14 is moved. Of the first engaging portion 14B
It is fitted in the recess of the socket part 5.

The third socket portion 1 of the socket body B
In order to rotate the bolt or the nut with a larger rotation torque by using the fourth or fourth socket portion 15, first, as shown in FIG. After attaching to the hole 7 as described above,
As shown by a solid line in FIG.
B is fitted into the recess of the first socket part 5, or as shown by an imaginary line in the drawing, the engaging part 15B of the fourth socket part 15
Is fitted into the concave portion of the second socket portion 6, and the handle 1 is rotated by holding the driver bit 2. Alternatively, with the socket body B attached to the tip of the driver bit 2, the driver bit 2 is pulled out from the insertion hole 3 of the handle 1 and attached to the through hole 7, and the driver bit 2 is rotated while holding the handle 1. Let it do.

When a bolt or a nut is rotated by the first socket portion 5 or the second socket portion 6 of the handle 1, the driver bit 2 is mounted on the through hole 7 and the driver bit 2 is rotated. At this time, if the screw engaging portion 4 at the tip of the driver bit 2 directly hits the palm and hurt, the socket body B is attached to the tip of the driver bit 2 so that the screw engaging portion 4 is hidden. Is also preferable.

The embodiment described above is the most preferable in carrying out the present invention, but various changes can be made without changing the gist of the present invention. For example, the fitting shape of each part is not limited to a regular hexagon, but may be a regular polygon such as a regular square or a regular octagon, and each socket part can be changed according to the shape of a bolt or nut to be targeted.

[0034]

The manual rotary tool according to the first aspect of the present invention can rotate two kinds of screws by screw engaging portions formed at both ends of the driver bit. Bolts or nuts of different sizes can be rotated at the first socket portion and the second socket portion provided at the distal end portion and the proximal end portion, respectively. When the bolt or nut is further rotated, the driver bit is inserted into the handle. A large rotational torque can be obtained by pulling out the through hole, inserting it into the through hole of the handle, and rotating it with a driver bit protruding in a direction perpendicular to the direction of the rotation axis of the handle.

In the manual rotary tool according to the second aspect of the present invention, the driver bit can be easily held in the insertion hole portion or the through hole portion of the handle without slipping out, and the driver bit moves unexpectedly during use. It does not fall out.

In the manual rotary tool according to the third aspect of the present invention, even when the bolt shaft portion protrudes greatly from the nut, or when the nut is screwed into the middle portion of the cut bolt, the bolt shaft portion is provided in the retreat hole. Alternatively, the nut can be rotated by receiving the cut bolt, which is convenient for the work of mounting a lighting fixture or the like.

According to a fourth aspect of the present invention, there is provided a manual rotary tool comprising a combination of the above-described screwdriver comprising a handle and a driver bit and a socket body.
Bolts or nuts of different sizes can be rotated using the third and fourth socket portions of the socket body, and the socket body is removed from the driver bit, and the third or fourth socket portion is removed. One of the inside of the handle into the first socket portion or the second socket portion of the handle,
The bolt or nut can be rotated using the other, and a driver bit is attached to the through hole 7 of the handle, and the handle is rotated with the driver bit. The bolts and nuts can be rotated with a larger rotation torque by using the four sockets.

According to a fifth aspect of the present invention, there is provided a manual rotary tool, wherein a socket body is mounted on a distal end of a driver bit mounted on an insertion hole of a handle, and the third socket or the fourth socket is mounted.
When the bolt or the nut is rotated by the socket, the third engaging means is engaged with the engaging concave portion formed on the outer periphery of the driver bit, so that the socket body does not unexpectedly move along the driver bit. When the socket body is not used, if the socket body is disengaged by the third engaging means and the socket body is moved to the base of the driver bit, the screw engaging portion at the tip of the driver bit is used. Can be.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a driver constituting a manual rotary tool according to the present invention.

FIG. 2 is a front view of the handle.

3A is a plan view of the handle of FIG. 2, and FIG. 3B is a bottom view of the handle of FIG.

FIG. 4 is a sectional view showing a state in which a driver bit is mounted in a through hole of a handle.

FIG. 5 is a sectional view of a socket main body constituting the manual rotary tool of the present invention.

6 (a) is a left side view of the socket body of FIG. 5,
FIG. 6B is a right side view of the socket body of FIG. 5.

FIG. 7 is a front view of the socket body.

FIG. 8 is a cross-sectional view showing a typical example in which a driver and a socket body are used in combination.

FIG. 9 is a sectional view showing another example of use.

[Explanation of symbols]

 A Driver B Socket body 1 Handle 2 Driver bit 3 Insertion hole 4 Screw engagement part 5 First socket part 6 Second socket part 7 Through hole part 8 Metal core material 9 Said gripping material 10 Evacuation hole part 11 Engagement concave part 12 First engaging means 12A hole 12B sphere 13 Second engaging means 13A hole 13B sphere 14 Third socket part 15 Fourth socket part 14A, 15A Depression 14B, 15B Engagement part 16 Engagement hole 17, 18 Communication hole Part 19 Third engaging means 20 Hole 21 Spherical body 22 Sleeve 22 Sleeve 22A Annular convex part 22B Annular concave groove 23 Compression coil spring 24 Stop ring 25 Large diameter part 26 Step part

Claims (5)

[Claims] 1. A driver bit having screw engagement portions formed at both ends thereof is provided in an insertion hole portion formed in the distal end portion side of the handle toward the axial direction of the handle so as to be capable of being turned in and out, and not to be rotatable. A first socket portion and a second socket portion for rotating bolts or nuts of different sizes are formed at the distal end portion and the proximal end portion of the handle, respectively, and further, the center portion of the handle is orthogonal to the axial direction of the handle. A manual rotary tool comprising a through-hole portion through which the driver bit can be inserted and removed so that the driver bit cannot be rotated. 2. A first engaging means and a second engaging means elastically engageable with an engaging concave portion formed on an outer periphery of the driver bit, respectively, can be protruded into the insertion hole and the through hole. 2. The manual rotary tool according to claim 1, wherein the manual rotary tool is provided. 3. When the nut is rotated in the second socket portion on the base end side of the handle, a retreat hole for allowing the bolt shaft portion to escape is formed continuously from the second socket portion to the central portion of the handle. The manual rotary tool according to claim 1 or 2, wherein the manual rotary tool is formed. 4. A socket body which is axially movable along the outer periphery of the driver bit and which can be extracted from the driver bit but is not rotatable, is externally fitted to the driver bit, and both ends of the socket body have inner dimensions. A third socket portion and a fourth socket portion which are different from each other are formed, and the outer shapes of the third socket portion and the fourth socket portion are non-rotatably fitted in one of the first socket portion and the second socket portion. The manual rotary tool according to any one of claims 1 to 3, wherein the manual rotary tool has a shape to be formed. 5. The socket body is provided with a third engaging means which can be disengaged from an engaging recess formed on the outer periphery of the driver bit, so that each of the third and fourth socket portions can be used. 5. The manual rotary tool according to claim 4, wherein the socket body is held by the driver bit by using.