JP3043106U - Work tools - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a work tool that has both a socket wrench function and a screwdriver function, is convenient to carry and store, and is economically advantageous to the user. [Structure] A wrench socket 1 having socket portions 2 and 3 having different diameters at both ends is provided with a wrench ratchet mechanism 5.
The socket arm 4 is connected in a T-shape through the driver arm holder 4 and the driver bit holder 7 is coaxially connected to the socket arm 4 through the driver ratchet mechanism 6.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a work tool having both a socket wrench function and a driver function.

[0002]

[Prior art]

 Conventional socket wrenches include a T-shaped wrench socket connected to the tip of the handle (handle) and a ratchet mechanism between the handle and socket to facilitate handle operation. is there. In addition, since the driver has a simple structure in which the base end of the driver bit is integrally or detachably connected to the tip of the handle, a bit holder is connected to the handle via a ratchet mechanism, and the driver bit is connected to this holder. There are things such as wearing.

[0003]

[Problems to be solved by the device]

 As described above, there are various conventional socket wrenches and drivers, but in any case, the wrench tightens and loosens bolts and nuts, and the driver tightens and loosens screws. Even though they are related tools that are used at the same work site when assembling and disassembling, the socket wrench and the screwdriver have been manufactured separately and used individually, so it is easy to carry the tool around. It was inconvenient for storage and was uneconomical.

In view of the above problems, the present invention provides a working tool that has a socket wrench function and a driver function together, is convenient for carrying and storing, and is economically advantageous for the user. The purpose is to

[0005]

[Means for Solving the Problems]

 The work tool according to claim 1, wherein a socket arm 4 is connected in a T-shape to a wrench socket 1 having socket portions 2 and 3 having different diameters at both ends via a wrench ratchet mechanism 5, A driver bit holder 7 is coaxially connected to the arm 4 via a driver ratchet mechanism 6.

According to a second aspect, in the work tool according to the first aspect, the driver bit holder 7 is a chuck holder.

[0007]

【Example】

 An embodiment will be described with reference to the drawings. FIG. 1 is an external perspective view of a work tool according to the present invention, FIG. 2 is a partially sectional plan view of the tool, and FIG. 3 is a vertical side view of the tool. In these figures, reference numeral 1 denotes a cylindrical socket having socket portions 2 and 3 having different diameters at both ends, one large diameter socket portion 2 forming, for example, a dodecagonal hole, and the other diameter The small socket portion 3 has, for example, a hexagonal hole. Reference numeral 4 denotes a socket arm connected to a central portion in the axial direction of the socket 1 in a T-shape via a ratchet mechanism 5 for a wrench, and this socket arm 4 is connected to a driver bit holder 7 via a ratchet mechanism 6 for a driver. Are coaxially connected, and the driver bit 8 is detachably attached to the holder 7.

To describe the structure of the working tool in more detail, one end side of the socket arm 4 forms a hollow connecting portion 9 that is rotatably fitted to the axial center of the socket 1. As can be seen from FIG. 3, the ratchet mechanism 5 for the wrench has a ratchet wheel 10 fitted and fixed to the socket 1 inside the hollow connecting portion 9 of the socket arm 4, and has an arc-shaped ratchet 11a, 11b formed at both ends. A rotating claw 11 is pivotally mounted in the hollow connecting portion 9 with a pin 12, and one end of the rotating claw 11 is pushed through one opening window a of the hollow connecting portion 9 to push the claw 11a into a tooth of the ratchet wheel 10. Engagement with the ratchet wheel 10 allows the ratchet wheel 10 to rotate only in one direction (counterclockwise in FIG. 3), and the other end of the rocking plate 11 is pushed from the other opening window b to move the pawl 11b to the ratchet wheel 10. By engaging with the teeth of the socket, the socket 1 can be rotated in the reverse direction so that the socket 1 can be rotated via the ratchet wheel 10 in either one of the forward and reverse directions.

As shown in FIGS. 3 and 4, the other end of the socket arm 4 forms a cylindrical support wall portion 13 having an opening on one side surface. In the ratchet mechanism 6 for a driver, one end side of the rotary shaft 14 of the driver bit holder 7 is concentrically arranged inside the cylindrical support wall portion 13, and the rotary shaft 14 is arranged in the cylindrical support wall portion 13. The ratchet wheel 15 is fixed to the rotating shaft 14, and a pair of tilting claw plates 16 and 17 with elongated claw pieces 16a and 17a are arranged on both sides in the axial direction of the ratchet wheel 15 with the ratchet wheel 15 interposed therebetween. Then, as shown in FIGS. 4 (A) and 4 (C), one of the tilting claw plates 16 and 17 is tilted by the ratchet shifter 18 so as to be oblique to the axis of the rotary shaft 14, and the other is tilted. The slender claw pieces 17a, 16a of the tilting claw plates 17, 16 are connected to the inner surface of any one of a pair of ridge walls 19, 20 on both sides of the ratchet wheel 15 projecting from the opening end surface of the cylindrical support wall portion 13. Engage between the teeth And by a constitution that the rotary shaft 14 of the driver bit holder 7 to rotate only in the forward and reverse one direction through the ratchet wheel 15.

As shown in FIGS. 1 to 3, a cylindrical cover case 25 is externally fitted and fixed to the cylindrical support wall portion 13, and a ratchet shifter 18 is provided from a central opening 25 a of the cover case 25. The operation piece 23a of is projected. As shown in FIGS. 4 (A) and 4 (C), the tilting claw plates 16 and 17 are provided on the upper step portion 21 of the upper and lower step portions 21 and 22 provided on both end sides of the projecting ridge walls 19 and 20, respectively. It is placed on top. As shown in FIG. 4 (B), the ratchet shifter 18 is provided with an operation piece 23a protruding from the center of the outer surface thereof, and a slide plate 23 that slides a predetermined stroke in the axial direction, and is attached to the inner surface of the slide plate 23. The spring plate 24 is formed into a mountain shape. The both end portions 24a and 24b of the spring plate 24 always lightly press the tilting claw plates 16 and 17 together.

In the ratchet mechanism 6 for the driver, when the ratchet shifter 18 is slid to the left as shown in FIGS. 3 and 4A, the outer end of the tilting claw plate 16 on the left side is moved. The side is pushed by one end 24a of the spring plate 24 and drops toward the lower step portion 22 side, whereby the tilting claw plate 16 on the left side is tilted as shown in the drawing, and the elongated claw piece 16a is changed to the ridge wall. The tilting claw plate 17 on the right side is left on the upper step portion 21 while the slender claw piece 17a is pulled out from between the inner side surface of the ratchet wheel 15 and the inner side surface of the ridge wall 20. It is engaged with the teeth of the ratchet wheel 15. In this state, the ratchet wheel 15 can rotate counterclockwise as shown in FIG. 4C, but the clockwise rotation is blocked. When the ratchet shifter 18 is slid in the opposite direction to the illustrated direction, that is, to the right, the tilting claw plate 17 on the right side is pushed by the other end 24b of the spring plate 24 to the lower step 22 side. The slanting claw piece 17a falls out between the inner surface of the ridge wall 20 and the teeth of the ratchet wheel 15, and the left side tilting claw plate 16 is placed on the upper step portion 21. In the installed state, the elongated claw piece 16a is engaged between the inner side surface of the ridge wall 19 and the teeth of the ratchet wheel 15, whereby the ratchet wheel 15 is moved with respect to (C) of FIG. It can rotate clockwise, but counterclockwise rotation is blocked.

Next, the driver bit holder 7 will be described. The holder 7 has a hollow shaft portion 26 having an inner peripheral surface having a hexagonal cross section as shown in FIG. 4D on the front end side of the rotary shaft 14. A chuck sleeve 27 is fitted onto the hollow shaft portion 26 so as to be slidable in the axial direction, an annular taper groove 28 is formed on the inner peripheral surface of the intermediate portion of the sleeve 27, and the intermediate portion of the hollow shaft portion 26 is formed. A plurality of balls 29 engaging with the above-mentioned taper groove 28 are pierced and held at intervals in the circumferential direction, and a compression coil spring 30 is interposed between the chuck sleeve 27 and the rotary shaft 14 to hold the chuck holder. The driver bit is formed by inserting the driver bit 8 having a hexagonal cross-section having an annular ball engaging groove 8a as shown in FIG. 2 on the outer peripheral surface of the end into the hollow shaft portion 26. It is possible to fix the end portion side of the cover 8 coaxially and integrally with the rotary shaft 14 with one touch. The driver bit 8 shown in FIG. 2 has a plus portion m formed at one end and a minus portion f formed at the other end, but the driver bit 8 has a plus portion m or a minus portion at both ends. There are various types in which the part f is formed and others.

When fixing the driver bit 8 to the driver bit holder 7, the chuck sleeve 27 is pushed in against the biasing force of the compression coil spring 30, and in this state, the end portion of the driver bit 8 is inserted into the hollow shaft portion 26. After inserting the side, when the chuck sleeve 27 is opened, the chuck sleeve 27 is pushed forward by the urging force of the coil spring 30, and the ball 29 is pressed by the taper groove 28 in the inward radial direction. As a result, the ball 29 engages with the ball engaging groove 8a of the driver bit 8 and the driver bit 8 can be fixed so as not to slip out.

In the use of the work tool having the above-described structure, when the work tool is used as a socket wrench, the socket portions 2 and 3 of the socket 1 are fitted to the corresponding bolts and nuts, but By using the socket arm 4 and the driver bit holder 7 as a handle (handle) of a socket wrench, the bolts and nuts can be tightened or loosened by turning the handle. At this time, since the wrench ratchet mechanism 5 is interposed between the socket 1 and the socket arm 4, the handle (socket arm 4 and driver bit holder 7) is opposite to the tightening or loosening direction of the bolts and nuts. Since it is free to rotate in any direction, tightening or loosening bolts and nuts is easy.

When using this work tool as a screwdriver, the driver bit 8 can be mounted on the driver bit holder 7 and the socket 1 can be used as a handle for the driver. Or the loosening work can be performed very easily. Also at this time, since the ratchet mechanism 6 for the driver is interposed between the socket arm 4 and the driver bit holder 7, the handle (socket 1) does not move in the direction opposite to the tightening or loosening direction of the screw. It becomes rotation-free, which facilitates screw tightening or loosening work.

In the above embodiments, the ratchet mechanism 5 for the wrench and the ratchet mechanism 6 for the driver are examples, and the rotary shafts 14 of the socket 1 and the driver bit holder 7 are prevented from rotating in the reverse direction. Any type of ratchet mechanism may be used as long as it can rotate in either direction. Further, as the driver bit holder 7, a chuck holder having a tapered groove 28 and a ball 29 is shown, but various chuck holders such as screw tightening type can be used. Further, the driver bit holder of the present invention may be a simple one in which the end of the driver bit 8 is simply inserted.

[0017]

[Actions and effects of the invention]

 According to the work tool of claim 1, when the work tool is used as a socket wrench, the socket part of the socket is fitted to the corresponding bolt / nut, and the socket arm and the driver bit holder are used as a handle of the socket wrench. The bolts and nuts can be tightened or loosened by turning this handle. In this case, since the ratchet mechanism for the wrench is interposed between the socket and the socket arm, it is easy to tighten or loosen the bolts and nuts.

When used as a driver, the driver bit holder may be mounted with a driver bit, and the tip of the driver bit may be engaged with a screw for tightening or loosening operation. In this tightening or loosening operation, Since the T-shaped socket for the driver bit holder and socket arm can be used as the handle of the driver, the work of tightening or loosening the screw can be performed very easily. Further, at this time, since the ratchet mechanism for the driver is interposed between the socket arm and the driver bit holder, it is easy to tighten or loosen the screw with the driver bit.

According to the second aspect, since the driver bit holder is the chuck holder, it is possible to prevent the driver bit from coming off, and it is possible to secure work safety.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a work tool according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional plan view of the work tool.

FIG. 3 is a vertical sectional side view of the work tool.

FIG. 4A is a perspective view showing a ratchet mechanism for a socket arm driver in a work tool, and FIG. 4B is a perspective view showing a ratchet shifter of the ratchet mechanism;
(C) is a cross-sectional view taken along line XX of (A), and (D) is Y- of FIG.
It is a Y-line enlarged sectional view.

[Explanation of symbols]

 1 Socket 2 Socket Part 3 Socket Part 4 Socket Arm 5 Ratchet Mechanism for Wrench 6 Ratchet Mechanism for Driver 7 Driver Bit Holder 8 Driver Bit

Claims (2)

[Utility model registration claims] 1. A T-shaped socket arm is connected to a socket for a wrench having socket portions with different diameters at both ends through a ratchet mechanism for the wrench, and the socket arm is connected through a ratchet mechanism for a driver to the socket arm. A work tool that connects driver bit holders coaxially. 2. The work tool according to claim 1, wherein the driver bit holder comprises a chuck holder.