JP2000271874A - Socket wrench - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact socket wrench which has a simple structure and is capable of reducing its weight as much as possible, facilitating wrench operation, and reducing manufacturing cost. SOLUTION: This socket wrench is provided with a fixing socket 2 which is mounted in an T shape on one end of a handle 1 and socket holes 2a, 2b with different diameters on both ends, and a movable socket 3 which is capable of moving only in the axial direction inside the fixed socket 2, inserted so as to be capable of being drawn from the fixed socket 2, and which has socket holes 3a, 3b with different diameters on both ends.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket wrench used for tightening and removing bolts and nuts, and more particularly to a socket wrench which can handle a plurality of types of bolts and nuts.

[0002]

2. Description of the Related Art Heretofore, socket wrenches that can accommodate four types of hexagon bolts and nuts are known. This socket wrench is attached to the tip of the handle, and has a first socket having socket holes of different diameters at both ends, and externally slidably attached to both ends of the first socket so as to be slidable in the axial direction. It comprises a second socket and a third socket having socket holes having different diameters, and includes two socket holes at both ends of the first socket, a socket hole of the second socket, and a socket hole of the third socket. It has four types of socket holes having different diameters.

When using the socket hole of the second socket, the second socket is operated so as to protrude from one end of the first socket. When the socket hole of the third socket is used, When the third socket is operated so as to protrude from the other end of the first socket, and when both socket holes of the first socket are used, the second socket and the third socket are respectively inserted from both ends of the first socket. Operate so that it can be withdrawn.

[0004]

In the conventional socket wrench, as described above, the second socket and the third socket having socket holes having different diameters from each other are externally fitted to both ends of the first socket. Because it is attached,
Each of the first to third sockets needs to be formed to be considerably thicker, so that the weight becomes considerably large and the wrench has a structure in which the second socket and the third socket are externally fitted to both ends of the first socket. The head portion has a very bulky structure, which makes it very difficult to operate the wrench, and has a problem that the manufacturing cost is high.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a socket wrench which is simple and compact in structure, can be reduced in weight as much as possible, can be easily operated with a wrench, and can be manufactured at low cost. I do. Another object of the present invention is to provide a socket wrench that can handle eight types of bolt and nut sizes.

[0006]

The invention according to claim 1 is
A fixed socket 2 attached to one end of the handle 1 in a T-shape and having socket holes 2a and 2b having different diameters at both ends; And a movable socket 3 having socket holes 3a and 3b having different diameters at both ends.

A second aspect of the present invention is the socket wrench according to the first aspect, wherein both socket portions 3a and 3b having different diameters at both ends of the movable socket body 13 are formed.
One of the socket parts 11 is formed separately from the movable socket body 13, but the movable socket body 1
One of the socket portions 11 is integrally fixed to the movable socket body 13 in a state in which the movable socket 3 is fitted into the fixed socket 2, whereby the movable socket 3 can only move in the fixed socket 2 in the axial direction, and It is characterized in that it is formed so as not to be pulled out from the fixed socket 2.

According to a third aspect of the present invention, there is provided a first fixed socket 2 attached to one end of a handle 1 in a T-shape and having socket holes 2a and 2b having different diameters at both ends.
A first socket which is inserted into the fixed socket 2 so as to be movable only in the axial direction and has socket holes 3a and 4b having different diameters at both ends.
The moving socket 3 is attached to the other end of the handle 1 in a T-shape, and the socket holes 2a and 2
b, socket holes 4 having different diameters from any of 3a and 3b
a, 4b, and a second fixed socket 4 is inserted into the second fixed socket 4 so as to be movable only in the axial direction, and has a diameter at both ends of each of the socket holes 2a, 2b, 3a, 3b, 4a, 4b. Second socket having different socket holes 5a, 5b
And a moving socket 5.

A fourth aspect of the present invention is the socket wrench according to the third aspect, wherein the first and second movable sockets 3, 5 are provided.
Is characterized in that it is inserted into each of the fixed sockets 2 and 4 so that it cannot be pulled out from each of the first and second fixed sockets 2 and 4.

A fifth aspect of the present invention is the socket wrench according to the third or fourth aspect, wherein the first and second movable sockets 3 and 5 have socket holes 3a and 3a having different diameters at both ends of the movable socket bodies 13 and 20. Of the two socket portions 11, 12, 18, 19 forming the 3b, 5a, 5b, one socket portion 11, 18 is formed separately from the movable socket main bodies 13, 20, but the movable socket main body 13, 20, The movable socket body 1 is inserted in the fixed sockets 2 and 4 while the movable socket body 20 is inserted into the fixed sockets 2 and 4.
The socket portions 11 and 18 are integrally fixed to the sockets 3 and 20 so that the movable sockets 3 and 5 can only move in the axial direction into the fixed sockets 2 and 4 and can be extracted from the fixed sockets 2 and 4. It is characterized by being formed impossible.

A sixth aspect of the present invention is the socket wrench according to any one of the first to fifth aspects, wherein the movable sockets 3, 5 are provided.
Are socket holes 3a, 3b, 5 with different diameters at both ends.
a, 5b, both socket portions 11, 12, 18, 1
9 and both socket holes 2a, 2b, 4a, 4b of the fixed sockets 2, 4 having an outer diameter smaller than the outer diameter of both socket portions.
Moving socket bodies 13 and 20 inserted into communication holes 7 and 9 penetrating partition walls 6 and 8 therebetween.
One of socket portions 11, 1 among 1, 12, 18, and 19
8 is formed separately from the movable socket bodies 13 and 20, and the other socket portions 12 and 19 are formed separately from the movable socket bodies 13 and 2.
0, and the one socket portion 11,
A fitting hole 14 is provided at the inner end side of the moving socket main body 13, 20 so that the distal end portions of the moving socket bodies 13 and 20 are fitted therein. An annular groove 16 for ring fitting is formed on the outer peripheral surface of the distal end portion of the movable socket body 13, 20.
With the split ring 17 interposed therebetween, the one socket portions 11 and 18 are moved from the movable socket main bodies 13 and 20.
Characterized in that they are integrally fixed to the tip of the.

[0012]

1 is a partially sectional side view showing a socket wrench according to the present invention. This socket wrench is attached in a T-shape to one end of a handle 1 for rotating operation, and socket holes 2 having different diameters are provided at both ends.
a first fixed socket 2 having a, 2b, and socket holes 3a, 3b of different diameters which are inserted into the first fixed socket 2 so as to be movable only in the axial direction.
A first moving socket 3 having a hollow shape, and a T-shaped attachment at the other end of the handle 1, both ends of which have different diameters and have both socket holes 2 a and 2 b of the first fixed socket 2.
A second fixed socket 4 having socket holes 4a and 4b smaller in diameter than the first fixed socket 4 is inserted into the second fixed socket 4 so as to be movable only in the axial direction.
A second moving socket 5 having socket holes 5a and 5b smaller in diameter than both sockets 2a and 2b of the moving socket 2 is provided. The first movable socket 3 is inserted into the first fixed socket 2 so as not to be able to be pulled out, and the second movable socket 5 is fitted to the second fixed socket 4 so as not to be able to be pulled out.

The one end side socket hole 2a of the first fixed socket 2 is larger in diameter than the other end side socket hole 2b. First
The one end side socket hole 3a of the moving socket 3 is larger in diameter than the other end side socket hole 3b and smaller in diameter than the other end side socket hole 2b of the first fixed socket 2. For example, the size of the nut corresponding to these socket holes 2a, 2b, 3a, 3b (the opposite side dimension) is 18 mm for the one end side socket hole 2a of the first fixed socket 2, and 15 mm for the other end side socket hole 2b. The socket hole 3a at one end of the first moving socket 3 is 14 mm, and the socket hole 3b at the other end is 11 mm.

The one end side socket hole 4a of the second fixed socket 4 is larger in diameter than the other end side socket hole 4b. Second
The one end side socket hole 5a of the movable socket 5 is larger in diameter than the other end side socket hole 5b and smaller in diameter than the other end side socket hole 4b of the second fixed socket 4. For example, the size of the nut corresponding to these socket holes 4a, 4b, 5a, 5b (the opposite side dimension) is 13 mm for the one end side socket hole 4a of the second fixed socket 4 and 10 mm for the other end side socket hole 4b. The one end side socket hole 5a of the second moving socket 5 is 9 mm, and the other end side socket hole 5b is 6 mm.

As described above, the first fixed socket 2 at one end of the handle 1 and the first movable socket 3 which is irremovably inserted into the first fixed socket 2 are provided with four types of socket holes 2a, 2a.
b, 3a, 3b, and a second fixed socket 4 on the other end side of the handle 1 and a second movable socket 5 which is irremovably inserted into the second fixed socket 4, and further four types of socket holes 4a,
Since it has 4b, 5a, and 5b, it has a total of eight types of socket holes having different diameters.

As can be seen from FIG. 6, each of the socket holes 2a and 2b of the first fixed socket 2 has an inner peripheral surface formed in a dodecagonal shape, and a partition wall 6 between the socket holes 2a and 2b has:
A communication hole 7 smaller in diameter than the socket hole 2b on the smaller diameter side is formed concentrically. The inner peripheral surfaces of both socket holes 4a and 4b of the second fixed socket 4 are also formed in a dodecagonal shape, and the partition wall 8 between the two socket holes 4a and 4b has a diameter larger than that of the small-diameter side socket hole 4b. Small communication holes 9 are formed concentrically.

The first moving socket 3 is held in the first fixed socket 2 so as to be movable within the first fixed socket 2 for a fixed stroke S (see FIGS. 2B and 2C) back and forth in the axial direction. Have been. Similarly, the second movable socket 5 is held in the second fixed socket 4 so as to be movable forward and backward in the axial direction for a predetermined stroke without falling out of the second fixed socket 4.

The detailed structure of the first moving socket 3 will be described with reference to FIGS. 3 to 6. As shown in FIG. 3, the first moving socket 3 has a socket corresponding to each of the first fixed sockets 2 as shown in FIG. A pair of socket portions 11, 1 having a length shorter than the lengths of the holes 2a, 2b and fitted into these socket holes 2a, 2b so as to be non-rotatable and axially movable, respectively.
2 and an outer diameter smaller than the outer diameter of each of the socket portions 11 and 12, and both socket holes 2a,
A cylindrical movable socket body 13 inserted into a communication hole 7 penetrating the partition wall 6 between the two socket portions 1b.
One of the socket portions 11 and 12 is formed separately from the movable socket body 13, and the other socket portion 12 is formed coaxially and integrally with the movable socket body 13. The outer peripheral surface of each of the socket portions 11 and 12 is formed in a hexagonal shape, and a dodecagonal socket hole 2 a of the first fixed socket 2 is formed.
2b is fitted so as to be movable only in the axial direction.

As shown in FIG. 4, the large-diameter socket portion 11 forming the socket hole 3a is provided at its inner end with a fitting hole 14 into which the tip of the movable socket body 13 is fitted. An annular groove 15 for ring fitting is formed on the inner peripheral surface of the fitting hole 14.
An annular groove 16 for ring fitting as shown in FIG. Then, socket part 1
1 side ring-shaped annular groove 15 and movable socket body 1
By interposing the split ring 17 with the ring-fitting annular groove 16 on the third side, the socket portion 11 is integrally fixed to the distal end portion of the movable socket body 13. The split ring 17 is formed by forming a cutout 17a in a part of a steel ring having a circular cross section, and can be expanded and contracted through the cutout 17a.

In order to fix the large-diameter side socket portion 11 to the distal end portion of the movable socket body 13, first, as shown in FIG. 5, a split ring 17 is fitted into a ring fitting annular groove 16 on the movable socket body 13 side. Combine. At this time, the split ring 17 is in a state of appropriately protruding from the outer peripheral surface of the movable socket body 13 as shown in FIG. Thus, as shown in FIG. 4, particularly FIG. 6, the large-diameter socket portion 11 is inserted into the large-diameter socket hole 2 a of the first fixed socket 2, and the movable socket body with the small-diameter socket portion 12. 13
From the small-diameter socket hole 2b of the first fixed socket 2 to the large-diameter socket hole 2a through the communication hole 7 between the two socket holes 2a, 2b, and then move using a hammer or the like from this state. By hitting the tip of the socket body 13 into the fitting hole 14 of the large-diameter side socket part 11, the split ring 17 fitted in the ring-fitting annular groove 16 of the movable socket body 13 is temporarily reduced in diameter. Then, the split ring 17 is connected to the ring-shaped annular groove 15 on the socket portion 11 side.
To engage.

As a result, the split ring 17 is fitted into the annular grooves 15 and 16 for fitting both rings, and the large-diameter socket portion 1 is formed.
1 is integrally fixed to the movable socket body 13 with the small-diameter side socket portion 12 in the first fixed socket 2 to form the first movable socket 3. The first moving socket 3 thus formed can be moved within the first fixed socket 2 by a predetermined stroke in the axial direction without falling out of the first fixed socket 2. Such a first moving socket 3
According to the configuration, the mounting of the first moving socket 3 into the first fixed socket 2 becomes easy and easy, and once the moving socket 3 is mounted in the first fixed socket 2, it does not come off from the fixed socket 2. .

The specific structure of the first moving socket 3 has been described above.
The second moving socket 5 has exactly the same configuration as the moving socket 3 and, as shown in FIG.
Have a length shorter than the length of the corresponding socket holes 4a, 4b, and are fitted into the socket holes 4a, 4b so as to be non-rotatable and axially movable, respectively.
9 and a cylindrical moving socket body 20 having an outer diameter smaller than the outer diameter of both socket portions 18 and 19 and formed coaxially and integrally with the smaller-diameter socket portion 19 of both socket portions 18 and 19. The movable socket body 20 is provided with a partition wall 8 between the two socket holes 4a and 4b of the second fixed socket 4.
Through the communication hole 9 penetrating through. The outer peripheral surfaces of both socket portions 18 and 19 are formed in a hexagonal shape.

The large-diameter socket 1 is attached to the movable socket body 20 in which the small-diameter socket 19 is integrally formed.
6, the large-diameter socket portion 18 is inserted into the large-diameter socket hole 4a of the second fixed socket 4 and the movable socket body with the small-diameter socket portion 19, as shown in FIG. 20 from the small-diameter socket hole 4b of the second fixed socket 4 to the large-diameter socket hole 4a through the communication hole 9 between the two socket holes 4a, 4b, and from this state, using a hammer or the like. By hitting the tip of the movable socket body 13 into a fitting hole (not shown) of the large-diameter side socket portion 11, the split ring 17 in the ring fitting annular groove (not shown) of the movable socket body 20 is temporarily moved. The diameter of the second moving socket 5 is reduced by engaging the second moving socket 5 with a ring fitting annular groove (not shown) on the socket portion 18 side.
The state is formed as shown in FIG.

1, 3 and 6, reference numeral 21 denotes a well-known ratchet mechanism provided on the first fixed socket 2 on one end side of the handle 1. A ratchet wheel 23 is mounted on the outer periphery of the central portion of the first fixed socket 2. And a rotating claw 24 having claws (not shown) formed at both ends is pivotally attached to the handle 1 side with a pin 25, and one end of the rotating claw 24 is pushed through one opening window (not shown) to push the claw. By engaging the ratchet wheel 23, the ratchet wheel 23 can be rotated only in one direction, and the other end of the rotating claw 24 is pushed from the other opening window (not shown) to engage the pawl with the ratchet wheel 23. By doing so, it is possible to rotate in the opposite direction.
3 through the first fixed socket 2 and the first movable socket 3
Is rotated only in one of forward and reverse directions.

Reference numeral 22 denotes a ratchet mechanism provided on the second fixed socket 4 at one end of the handle 1. A ratchet wheel 26 is provided on the outer periphery of the center of the second fixed socket 4, and claws (not shown) are provided at both ends. The rotation claw 27 formed with
To pivot the ratchet wheel 26 in only one direction by pushing one end of the rotating pawl 27 to engage the pawl with the ratchet wheel 26.
7 by pushing the other end thereof to engage the pawl with the ratchet wheel 26 so that the second fixed socket 4 and the second movable socket 5 can be moved in either the forward or reverse direction via the ratchet wheel 26. It is designed to be rotated.

FIGS. 2A and 2B show a use mode of the first fixed socket 2 attached to one end of the handle 1 and the first movable socket 3 inserted into the first fixed socket 2. First, FIG. 2A shows a state in which the first moving socket 3 is fitted so as to match the longitudinal direction of the first fixed socket 2,
When used in this state, the bolts and nuts corresponding to the socket holes 3a and 3b of the first moving socket 3 can be tightened and removed. In this case, the opposite side dimension of the socket hole 3a is 14 mm, and the socket hole 3b is 11 mm.
It is.

FIG. 2B shows a state in which the first moving socket 3 is moved to the left side in the figure by the moving stroke S with respect to the first fixed socket 2. That is, when the one end side of the handle 1 is tilted to the left in FIG. 2A from the state of FIG. 2A, the first moving socket 3 slides inside the first fixed socket 2 by gravity, and quickly and easily returns to FIG. The state shown in FIG. At this time,
As shown, the small-diameter side socket portion 1 of the first moving socket 3
2, the inner end surface of the first fixed socket 2 abuts on the opposite end surface of the partition wall 6, so that the movement of the first movable socket 3 to the left in the drawing is restricted. When used in this state, bolts and nuts matching the socket hole 3a of the first moving socket 3 and the small-diameter socket hole 2b of the first fixed socket 2 can be tightened and removed. In this case, the opposite dimension of the socket hole 3a is 14 mm, and the socket hole 2b is 15 mm.
It is.

FIG. 2C shows a state in which the first movable socket 3 has been moved to the right side in the figure by the moving stroke S with respect to the first fixed socket 2. That is, if one end of the handle 1 is tilted rightward from the state shown in FIG.
The movable socket 3 slides in the first fixed socket 2 by gravity, and quickly and easily reaches the state shown in FIG. At this time, as shown in the figure, the inner end surface of the large-diameter side socket portion 11 of the first moving socket 3 abuts on the opposing end surface of the partition wall 6 of the first fixed socket 2, and the first moving socket 3 moves rightward in the drawing. Movement is restricted. When used in this state, bolts and nuts matching the large-diameter socket hole 2a of the first fixed socket 2 and the small-diameter socket hole 3b of the first movable socket 3 can be tightened and removed. In this case, the opposite side dimension of the socket hole 2a is 18 mm, and the socket hole 3b is 11 mm.

As described above, the first fixed socket 2 attached to one end of the handle 1 in a T-shape, and the first fixed socket 2 inserted into the first fixed socket 2 so as to be movable only in the axial direction.
With the moving socket 3, four types of bolts and nuts having different diameters, large and small, can be tightened and removed.

The description of the manner of use of the second fixed socket 4 attached to the other end of the handle 1 and the second movable socket 5 fitted in the second fixed socket 4 is omitted, but in this case, still another example is used. Four types of bolts and nuts having different diameters can be tightened and removed. Incidentally, the opposite side dimension of the large-diameter side socket hole 4a of the second fixed socket 4 is 13
mm, the small-diameter socket hole 4b is 10 mm, the large-diameter socket hole 5a of the second moving socket 5 is 9 mm, and the small-diameter socket hole 5b is 6 mm.

Therefore, the first and second fixed sockets 2 and 4 attached to the upper and lower ends of the handle 1 and the first and second movable sockets 3 and 5 respectively fitted therein have different diameters. It is possible to tighten and remove eight large and small bolts and nuts.

In the socket wrench of the embodiment described above, the first moving socket 3 and the second moving socket 5
Are held in the fixed sockets 2 and 4 so as to be movable in the axial direction back and forth for a fixed stroke S without coming out of the first fixed socket 2 and the second fixed socket 4, respectively. There is no danger of being lost by being detached from the fixed sockets 2 and 4, which is convenient for carrying and storing.

When using the socket wrench, the handle 1
The first movable socket 3 or the second movable socket 5 can be moved by gravity in the first fixed socket 2 or the second fixed socket 4 only by appropriately tilting the Easy to operate, very easy to use and convenient.

In this embodiment, in the configuration of the first and second movable sockets 3 and 5, the small-diameter side socket portion 1
2 and 19 are formed integrally with the movable socket bodies 13 and 20 and the large-diameter socket sections 11 and 18 are formed independently.
3 and 20 are integrally formed with the small-diameter socket portions 12 and 19.
May be formed alone.

Also, in the above embodiment, the socket wrench having the fixed socket and the movable socket fitted to the fixed socket at both ends of the handle has been described. Only the side may be provided with a fixed socket and a movable socket fitted therein.

[0036]

The socket wrench according to the first aspect of the present invention is mounted on one end of a handle and has a fixed socket having socket holes having different diameters at both ends, and can only move in the axial direction in the fixed socket. A movable socket having socket holes having different diameters at both ends thereof, which can be simply and compactly constructed, so that the weight can be reduced as much as possible and a wrench Operation becomes easy. In particular, in this socket wrench, since the movable socket is inserted so as not to be able to be pulled out of the fixed socket, there is no danger that the movable socket will be detached from the fixed socket and lost.
It is convenient to carry and store, and in use, simply tilt the handle appropriately, the moving socket moves in the fixed socket by gravity, and it can take the required usage form, so the wrench operation It can be done quickly and easily and is easy to use.

As described in claim 2, one of the two socket portions of the movable socket body is formed separately from the movable socket body, but the movable socket body is inserted into the fixed socket. If the one socket part is integrally fixed to the movable socket body in the state of being moved, the structure of the movable socket that can only be moved in the axial direction within the fixed socket and cannot be pulled out is simple, and its manufacture is simple. Becomes easier.

According to the socket wrench of the third aspect of the present invention, the first and second fixed sockets attached to the upper and lower ends of the handle and the first and second movable sockets respectively fitted to these are provided. It is possible to tighten and remove eight types of bolts and nuts of different diameters.

According to the fourth aspect, each of the first and second movable sockets is inserted into each of the fixed sockets so as not to be pulled out from each of the first and second fixed sockets. There is no danger that the moving socket will be detached from each fixed socket and lost, so it is convenient to carry and store.In use, simply tilt the handle appropriately and each moving socket will move inside each fixed socket. The wrench can be moved quickly and easily because it can be moved by gravity to take a required use form.

According to a fifth aspect of the present invention, one of the two socket portions of each movable socket body is formed separately from the movable socket body, but the movable socket body is inserted into the fixed socket. If the one socket portion is integrally fixed to the moving socket main body in the state in which the moving socket has been set, the structure of each moving socket which can only be moved in the axial direction within each fixed socket and cannot be pulled out is simple. , Making it easier.

According to the fifth aspect of the present invention, one of the socket portions can be easily fixed to the movable socket main body in the fixed socket, and the movable socket can be formed quickly and easily. Can be.

[Brief description of the drawings]

FIG. 1 is a partially sectional side view showing a socket wrench according to the present invention.

FIGS. 2A to 2C are explanatory cross-sectional views showing a usage mode of a first fixed socket and a first moving socket fitted into the first fixed socket.

FIG. 3 illustrates a first fixed socket and a first fixed socket inserted therein.
It is an expanded sectional view of a moving socket.

FIG. 4 is an explanatory sectional view showing a state where the movable socket is disassembled into a large-diameter side socket portion and a movable socket body with a small-diameter side socket portion.

FIG. 5 is an explanatory view showing a state in which a split ring is about to be fitted to a distal end portion of a movable socket body with a small-diameter side socket portion.

FIG. 6 shows a first handle attached to both ends of the handle.
It is explanatory drawing which shows the state which is going to attach a 1st and 2nd moving socket to a 2nd fixed socket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handle 2 1st fixed socket 2a, 2b Socket hole of 1st fixed socket 3 1st moving socket 3a, 3b Socket hole of 1st moving socket 4 2nd fixed socket 4a, 4b Socket hole of 2nd fixed socket 5 2nd Moving socket 5a, 5b Socket hole of second moving socket 6, 8 Partition wall 7, 9 Communication hole 11 Large-diameter side socket portion of first moving socket 12 Small-diameter side socket portion of first moving socket 13 Movement of first moving socket Socket body 17 Split ring 18 Large-diameter socket part of second movable socket 19 Small-diameter socket part of second movable socket 20 Moving socket body of second movable socket

Claims (6)

[Claims] 1. A fixed socket attached to one end of a handle in a T-shape and having socket holes of different diameters at both ends, which can be moved only in the axial direction into the fixed socket, and cannot be removed from the fixed socket. And a moving socket having socket holes of different diameters at both ends. 2. One of two socket portions forming socket holes having different diameters at both ends of the movable socket body, one of the socket portions is formed separately from the movable socket body.
The one socket portion is integrally fixed to the movable socket body in a state where the movable socket body is inserted into the fixed socket, whereby the movable socket can only be moved in the fixed socket in the axial direction, and the movable socket can be moved from the fixed socket. 2. The socket wrench according to claim 1, wherein the socket wrench is formed so as not to be pulled out. 3. A first fixed socket attached to one end of the handle in a T-shape and having socket holes having different diameters at both ends, and is fitted into the first fixed socket so as to be movable only in the axial direction, A first movable socket having socket holes having different diameters at both ends, and a second fixed portion having a T-shape attached to the other end of the handle and having socket holes having different diameters from any of the socket holes at both ends. A socket wrench comprising: a socket; and a second movable socket which is inserted into the second fixed socket so as to be movable only in the axial direction, and has a socket hole having a diameter different from any of the socket holes at both ends. 4. The first and second moving sockets each include a first moving socket.
4. The socket wrench according to claim 3, wherein the socket wrench is inserted into each of the fixed sockets so that it cannot be pulled out from each of the second fixed sockets. 5. One of the first and second movable sockets, which has socket holes having different diameters at both ends of the movable socket body, one of which is formed separately from the movable socket body. However, the one socket portion is integrally fixed to the movable socket body in a state where the movable socket body is inserted into the fixed socket, whereby the movable socket can only move in the fixed socket in the axial direction. The socket wrench according to claim 3, wherein the socket wrench is formed so as not to be able to be pulled out of the fixed socket. 6. The moving socket has both socket portions forming socket holes having different diameters at both ends, an outer diameter smaller than the outer diameter of both socket portions, and a partition wall between the two socket holes of the fixed socket. And a moving socket body inserted into a communication hole penetrating the main body, one of the two socket portions is formed separately from the moving socket body, and the other socket portion is formed coaxially and integrally with the moving socket body. The one socket portion is provided on its inner end side with a fitting hole into which the tip portion of the moving socket body is fitted, and a ring fitting annular groove is formed on the inner peripheral surface of the fitting hole. An annular groove for ring fitting is formed on the outer peripheral surface of the distal end portion of the socket main body, and the split ring is interposed in both annular grooves, so that the one socket portion is integrally fixed to the distal end portion of the movable socket main body. The socket wrench according to any one of claims 1 to 5, wherein: