JP6487997B2 - Impact wrench socket - Google Patents

Description

  The present invention relates to a socket used for an impact wrench.

  The impact wrench is a tool that can tighten bolts and nuts by attaching a socket. One end of the socket is attached to the tip (insertion angle) of the impact wrench. When the tip of the impact wrench rotates, the socket also rotates according to the rotation. For example, a bolt is fitted into the other end of the socket.

  In this state, when the tip of the impact wrench is rotated, the socket is rotated according to the rotation. The bolt fitted in the socket is fastened and fixed to the object, or the bolt is loosened and removed from the object (tightening work).

Japanese Patent Application Laid-Open No. 08-141919 JP 2002-254332 A

  At work sites such as construction sites, it may be necessary to tighten and tighten nuts and bolts of different sizes. Conventionally, different impact wrench sockets have been used for different sizes of bolts and the like.

  For example, workers working at high places have prepared Torcia-type high-strength bolts having nuts of different sizes. The worker attaches the first size socket to the impact wrench in order to tighten the first size Torcia type high strength bolt. After performing the tightening operation in this state, a second size socket is attached to the impact wrench to tighten the second size Torcia type high strength bolt.

  However, there are cases where an operator working at a high place has a plurality of tools in addition to an impact wrench, a socket and a torcia type high strength bolt. Moreover, the operation | work which removes a socket from an impact wrench, hold | maintaining a torcia type high strength volt | bolt is complicated.

  Also, it is necessary to note that a worker working at a high place drops the socket from a high place when removing the socket from the impact wrench. Similarly, it should be noted that the connecting parts of the socket and the impact wrench are dropped.

  The present invention has been made in view of the above problems, and an object of the present invention is to facilitate the tightening and loosening work with an impact wrench using a socket.

  The embodiment is an impact wrench socket in which an insertion angle of an impact wrench can be fitted at one end side, and includes a first holding part and a second holding part. The first holding portion can be fitted with a first nut having a first width from the other end side with respect to one end side of the socket, and holds the fitted first nut. The second holding portion is provided closer to one end of the socket than the first holding portion, and can be fitted with a second nut having a second width narrower than the first width. The fitted second nut Hold. The ratio of the length of the first holding portion in this direction to the total length of the socket along the axial direction from the one end side to the other end side is approximately 14% to 15%.

  The socket for impact wrench according to the present invention can be used for each of the Torcia type high strength bolts having nuts of different sizes while being attached to the impact wrench. Therefore, an operator who performs a tightening operation using the impact wrench socket can perform the tightening operation of a plurality of bolts of different sizes by using either the first holding portion or the second holding portion in the socket. There is no need to remove the socket from the impact wrench each time. Therefore, it is possible to simplify the tightening work with the impact wrench using the socket.

  Furthermore, there is an effect that the conventional socket does not have, which avoids the possibility of dropping the socket from a high place with the removal of the socket. Further, it is possible to prevent the connection parts between the socket and the impact wrench from being dropped. In addition, since the operation of replacing the socket can be omitted in the tightening operation of nuts of different sizes, it is possible to improve the work efficiency of the entire tightening operation.

It is a perspective view of the socket for impact wrench of an embodiment. It is a front view of the socket for impact wrench of an embodiment. It is a left view of the socket for impact wrench of embodiment. It is a perspective view which shows a 1st holding | maintenance part and a 2nd holding | maintenance part. It is A-A 'sectional drawing of the socket for impact wrench of embodiment. It is a right view of the socket for impact wrench of an embodiment. It is a perspective view which shows the socket for impact wrench and the torcia type high strength bolt of embodiment. It is a perspective view which shows the socket for impact wrench and the torcia type high strength bolt of embodiment. It is a perspective view which shows the socket for impact wrench and the torcia type high strength bolt of embodiment. The front view which shows the use condition of the socket for impact wrench of embodiment.

(Outline configuration)
With reference to FIGS. 1-10, the socket for impact wrenches (henceforth "the socket 100") concerning embodiment is demonstrated. The socket 100 has a holding part and a connection part inside a cylindrical casing. The holding part holds the nut to be tightened. The connection part is a part for connecting the socket 100 to the impact wrench IW (see FIG. 10). In the example shown in FIG. 1, the socket 100 includes a first holding part 10, a second holding part 20, a pin tail accommodating part 30, and a connection part 40 provided inside the casing.

  Further, the outer shape of the socket 100 will be described with reference to the example shown in FIGS. 1 and 2. The socket 100 includes a cylindrical portion 10a having the largest diameter in the housing, a tapered portion 10b continuous with the cylindrical portion 10a, and a tapered shape. The unit 10b and the continuous connection unit 40 are included. The tapered portion 10b has a tapered surface whose diameter gradually decreases from the boundary portion with the cylindrical portion 10a.

  The cylindrical portion 10a in the socket 100 includes a first holding portion 10 and a second holding portion 20 that are aligned in the axial direction of the column (the direction connecting the one end side and the other end side of the socket 100). Further, the pin tail accommodating portion 30 is provided on the other end side (the insertion corner insertion portion side of the impact wrench), and the connecting portion 40 is provided on the other end. As shown in FIGS. 1, 3 to 5, the socket 100 is provided with an opening that is concave in a direction from one end to the other end in the axial direction of the housing. A concave portion from the opening toward the other end side of the housing is the first holding unit 10. As shown in FIGS. 1, 2, and 4, the opening of the housing is formed so as to correspond to the shape of a nut such as a bolt (see FIG. 6 or the like) that the first holding unit 10 is to hold. . As shown in FIG. 5, in one example of the socket 100, the first holding unit 10 and the second holding unit 20 are provided inside the columnar portion 10 a. A pin tail accommodating portion 30 is provided inside the tapered portion 10b. Further, as shown in FIG. 5, in the socket 100, the columnar portion 10a, the tapered portion 10b, and the connecting portion 40 are integrally formed.

<First holding part>
As shown in FIGS. 4 and 5, the first holding portion 10 has a side surface (the inner surface of the columnar portion 10 a; the first side surface 1 a) along the axial direction of the socket 100, which is substantially the case of the housing of the socket 100. While maintaining the shape of the opening, it has a shape that extends to the back side with almost no gradient. The first side surface 1a forming the first holding portion 10 has a predetermined length, and has a first contact surface 1 orthogonal to the side surface at the innermost end. The predetermined length is shorter than the length of the nut of the Torcia type high strength bolt in the axial direction of the socket 100, for example. Therefore, the first side face 1a does not cover all the side faces of the nut to be held by the first holding portion 10, and holds the pin tail side of the nut of the Torcia type high strength bolt. The nut portion of the Torcia type high strength bolt held by the first holding portion 10 corresponds to an example of “first nut”.

  The first contact surface 1 holds at least the peripheral edge portion of the tip surface of the nut to be held by the first holding portion 10 (see FIGS. 8 and 10). That is, as shown in FIGS. 1, 2, and 4, the first contact surface 1 has an outer peripheral edge having substantially the same shape as the opening of the socket 100, and corresponds to the opening. It has a slightly smaller inner periphery. The outer peripheral edge has a size capable of inserting a nut to be held. The width of the outer peripheral edge of the first side face 1a or the first contact face 1 corresponds to an example of “first width”.

  As shown in FIGS. 3, 4, and 5, the inside of the inner peripheral edge of the first contact surface 1 is a boundary portion with the second holding portion 20 and is open. This opening corresponds to an example of a “first opening”.

  As shown in FIG. 3, the opening of the socket 100 and the first holding part 10 are recessed inward from the corners. This is intended to hold the nut at the side of the nut held by the first holding unit 10. Thereby, wear of the corner portion can be prevented.

<Second holding part>
As shown in FIG. 4 and FIG. 5, the second holding unit 20 is located on the back side of the first holding unit 10 and is formed in a size (diameter) that is one size smaller than the first holding unit 10. The second holding portion 20 has a shape in which the second side surface 2a along the axial direction of the socket 100 extends to the back side with almost no gradient while maintaining the shape of the first opening of the first holding portion 10 substantially. Have The second side surface 2a forming the second holding portion 20 has a predetermined length, and has a second contact surface 2 orthogonal to the side surface at the innermost end (see FIG. 5). The second contact surface 2 holds at least the peripheral edge portion of the tip surface of the nut to be held by the second holding portion 20. That is, as shown in FIGS. 1, 2, and 4, the second contact surface 2 has an outer peripheral edge having substantially the same shape as the first opening of the first holding portion 10, and the first opening And having an inner peripheral edge that is slightly smaller than the opening. The outer peripheral edge has a size capable of inserting a nut to be held. The width of the outer peripheral edge of the second side surface 2a or the second contact surface 2 corresponds to an example of “second width”.

  The nut portion of the Torcia type high strength bolt held by the second holding portion 20 corresponds to an example of a “second nut”.

  In addition, as shown in FIG. 3, the 2nd holding | maintenance part 20 has the side hollowed inward rather than the corner | angular part. This is configured with the same intention as the configuration described in the first holding unit 10.

<Pintail storage>
As shown in FIGS. 4 and 5, the pin tail accommodating portion 30 is located on the other end side from the second holding portion 20 and is formed in a size that can accommodate the pin tail of the Torcia type high strength bolt. In the example of each figure, the pin tail accommodating part 30 is formed in the size (diameter) which made the 2nd holding | maintenance part 20 one size smaller. The pin tail accommodating portion 30 has a shape in which the side surface along the axial direction of the socket 100 extends to the back side with almost no gradient while maintaining the shape of the second opening of the second holding portion 20. The side surface forming the pin tail accommodating portion 30 has at least a length longer than the pin tail in the axial direction of the torcia type high strength bolt, and the innermost end is adjacent to the connecting portion 40 (see FIG. 5). That is, the pin tail accommodating part 30 accommodates the pin tail of a Torcia-type high-strength bolt of a size in which, for example, a nut is held by the second holding part 20.

<Connection part>
As shown in FIGS. 3 to 6, the connecting portion 40 is located on the other end side of the pin tail housing portion 30 and on the other end side of the socket 100, and the insertion angle of the impact wrench (1/2 standard or the like). By being inserted, it is formed in a size capable of fitting the insertion angle. In the example of each figure, therefore, the connecting portion 40 has a shape corresponding to the shape of the insertion angle of the impact wrench. That is, the connection part 40 is a part for connecting the socket 100 and the impact wrench by fitting the insertion angle of the Torcia type high strength bolt.

  Further, the connection portion 40 is provided with a pinhole ph for fixing the insertion angle (projection portion) of the impact wrench. The pinhole ph is provided so as to penetrate the outer peripheral portion of the connecting portion 40 and intersect the axial direction of the socket 100. In the example of FIG. 5, the pinhole ph of the connection portion 40 of the socket 100 is provided so as to be orthogonal to the axial direction. An arbitrary connection member (not shown) such as a columnar connection pin passed from one end side to the other end side is passed through the pin hole ph. At this time, a through hole corresponding to the pinhole ph is provided at the insertion angle of the impact wrench, and the relative positional relationship between the socket 100 and the impact wrench is maintained via the connection member.

(Example of use)
Next, a usage example of the socket 100 of the embodiment will be described. 7 to 9, the illustration of the impact wrench is omitted. In the following, as an example of assumed use, the socket 100 and the impact wrench are connected first, and then the first holding unit 10 is used. A description will be made assuming that a Torcia type high-strength bolt or the like is inserted from the opening.

<Inserting bolts / nuts>
As a first step in the above example, the socket 100 is connected to an impact wrench. Further, as shown in FIG. 7, the torcia type high strength bolt or the like is inserted from the front end (pin tail or the like) side of the torcia type high strength bolt or the like through the opening of the first holding portion 10 of the socket 100.

<Large nut tightening work>
When performing a tightening operation of a large size nut or the like, the nut or the like is held in the first holding portion 10 of the socket 100 as shown in FIG. At this time, the side surface of the inserted nut or the like is in contact with the first side surface 1 a of the first holding unit 10. Further, the outer peripheral side of the tip surface (pin tail side surface) of the nut or the like is in contact with the first contact surface 1 of the first holding portion 10. Further, as shown in FIG. 8, when the first holding portion 10 holds the nut portion of the Torcia type high strength bolt, the nut portion protrudes outward from the opening of the first holding portion 10 of the socket 100. Has been.

  When the Torcia type high strength bolt is fitted into the first contact surface 1 of the first holding portion 10 of the socket 100, the operator operates the impact wrench and tightens the nut according to the power (see FIG. 10). .

<Squeezing of small size nuts>
After tightening a large size Torcia type high strength bolt and then performing a tightening operation of a corresponding Torcia type high strength bolt of a smaller size, the socket 100 connected to the impact wrench is connected to the large Torcia type Remove from the high strength bolt. The socket 100 according to this embodiment can be used for a Torcia-type high-strength bolt having a smaller size without replacing the socket. That is, the operator aligns the socket 100 and the impact wrench, which are removed from the large Torcia-type high-strength bolt, with the position of the small Torcia-type high-strength bolt that is the subject of the tightening work.

  Next, the operator inserts a small, aligned Torcia-type high-strength bolt from the opening of the first holding portion 10 of the socket 100. In this case, as shown in FIG. 9, the nut or the like is held by the second holding unit 20. At this time, the side surface of the inserted nut or the like is in contact with the second side surface 2a of the second holding portion 20 (see FIGS. 4 and 5). Furthermore, the outer peripheral side of the tip surface (pin tail side surface) such as a nut is in contact with the second contact surface 2 of the second holding portion 20. Further, when the second holding portion 20 holds the nut portion of the Torcia type high strength bolt, the pin tail of the Torcia type high strength bolt is accommodated in the pin tail accommodation portion 30.

  The operator pushes the nut portion of the small torcia-type high strength bolt up to the second holding portion 20 of the socket 100, and when the nut portion is fitted into the second holding portion 20, the tightening work is performed according to the driving of the impact wrench. It can be performed.

  As described above, as an example, after performing the tightening work of the large size Torcia type high strength bolt, the example of use was described in the order of performing the tightening work of the small size Torcia type high strength bolt, but in the reverse order, It is also possible to perform the tightening work for each.

(Action / Effect)
The operation and effect of the socket 100 according to the embodiment described above will be described.

  As described above, the socket 100 in the embodiment can be used for each of the torcia type high strength bolts having nuts of different sizes while being attached to the impact wrench. Therefore, the worker who performs the tightening work using the impact wrench socket selectively uses either the first holding part 10 or the second holding part 20 in the socket 100 according to the size of the nut. Can do. Therefore, a complicated operation of removing the socket from the impact wrench each time a plurality of bolts of different sizes are tightened is not necessary. As a result, it is possible to simplify the tightening operation of the Torcia type high strength bolt or the like by the impact wrench using the socket 100.

  Furthermore, there is an effect that the conventional socket does not have, which avoids the possibility of dropping the socket from a high place with the removal of the socket. Further, it is possible to prevent the connection parts between the socket and the impact wrench from being dropped. In addition, since the operation of replacing the socket can be omitted in the tightening operation of nuts of different sizes, it is possible to improve the work efficiency of the entire tightening operation.

  In addition, in each figure shown in order to understand description of embodiment, there exists a part shown with the broken line. This part can be replaced by any other shape. However, a worker working at a high place may have a plurality of tools in addition to an impact wrench, a socket, and a torcia type high strength bolt. In such a case, the heavier the socket, there is a risk of hindering work at high places. In addition, since the socket is connected to the tip of the impact wrench, the heavier the tip, there is a possibility that the tightening work may be hindered.

  In this regard, the socket 100 in each of the above-described drawings is configured to gradually become thinner toward the connection portion with the impact wrench in order to reduce the weight of the socket 100. According to such a configuration, the weight of the socket can be reduced, and the above-described problems can be solved.

DESCRIPTION OF SYMBOLS 1 1st contact surface 1a 1st side surface 2 2nd contact surface 2a 2nd side surface 10 1st holding | maintenance part 10a Cylindrical part 10b Tapered part 20 2nd holding | maintenance part 30 Pin tail accommodating part 40 Connection part 100 Socket IW impact wrench ph pinhole

Claims (4)

A socket into which the insertion angle of the impact wrench can be inserted at one end,
A first holding part capable of fitting a first nut of a torcia-type high strength bolt having a first width from the other end side with respect to the one end side, and holding the fitted first nut;
Provided on the one end side of the first holding portion, a second nut torque shear-type high-strength bolts having a narrower than the first width a second width is fittable, mated the second A second holding part for holding the nut of
A receiving portion provided on the one end side from the second holding portion and capable of receiving a pin tail of a Torcia-type high-strength bolt;
With
The relative overall length from one end socket in the axial direction toward the other end side, Ri length ratio der substantially 14% to 15% of at the direction of the first holding portion,
An impact wrench socket, wherein the length of the second holding portion is longer than the length of the first holding portion along the axial direction . The first holding part is
A first abutting surface with which a peripheral edge portion of the front end surface of the first nut is abutted; and a first side surface with which a side surface of the first nut is abutted;
In the width direction of the first holding part, a first opening having the same width as the width of the second holding part is provided adjacent to the inside of the first contact surface,
The second holding part is
Provided on the back side from the first opening of the first holding portion;
The second abutment surface with which a peripheral edge portion of the front end surface of the second nut is abutted, and a second side surface with which a side surface of the second nut is abutted are provided. The socket for impact wrench according to 1. In the width direction of the second holding portion, a second opening is provided adjacent to the inside of the second contact surface,
The accommodating part, impact wrench socket as claimed in claim 2, characterized in that communicating with said second opening. In the axial direction, the length of the first holding portion, impact wrench socket as claimed in claim 1, characterized in that less than the length of the nut torque shear-type high-strength bolts.