JP2013215879A - Structure of engaging/turning tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the structure of an engaging/turning tool that can be turned when used on a worn out or damaged workpiece.SOLUTION: An engaging/turning tool includes a socket base, and a socket slot having three first slot walls, three second slot walls, and six third slot walls which are formed inside the socket base to make up a side face around the socket slot such that the third slot walls are located between the first slot walls and the second slot walls so that the first slot walls, the third slot walls, and the second slot walls are formed in order around the socket slot. In this configuration, each first slot wall forms an arcuate surface, and each second slot wall forms a curved surface and includes two attachment surfaces that make an obtuse angle at their junction point. As a result, the tool can be used for driving a workpiece, such as a nut and a bolt head, and is usable for fastening and tightening the nut or bolt head even if their corners are worn out or damaged. Hence the overall usability and practicability of the tool is improved to make it competitive in the market.

Description

  The present invention relates to a rotating tool, and more particularly to a structure of an engaging rotating tool that can be rotated with respect to a worn or damaged workpiece.

In general tightening work, a nut or bolt head part is turned using a wrench. In use, first fit the socket on the wrench, then place the socket on the nut or bolt head, place the socket by turning the wrench, and turn the wrench to turn the nut or Turn the bolt head to tighten and loosen.
However, the corners of the nut or bolt head are worn away or damaged after long use, causing slip when turning the socket fitted on the top of the nut or bolt head, driving the nut or bolt head Thus, tightening and loosening operations cannot be performed.
Therefore, socket technology is disclosed, and as shown in FIG. 1, the fitting hole 91 at one end of the socket 90 is tapered inward at a central location corresponding to each side of the nut 100 (or bolt head portion). An abutting taper portion 92 is provided, and the socket 90 is fixed to the central position of each side of the nut 100 (or bolt head portion) using the abutting taper portion 92 to rotate the nut 100 (or bolt head portion). Can be operated.
However, since the nut 100 (or bolt head portion) is only a point contact and the mutual contact area is limited, the amount of tightening and loosening force that drives the nut 100 (or bolt head portion) is insufficient. It often happens that the nut 100 (or bolt head) cannot be driven.

Taiwan new model M323375

In order to solve the problem of slip in the rotational driving of the socket and nut 100 (or bolt head portion) described above, a non-slip socket wrench technique is disclosed thereafter.
As an example, a new non-slip socket capable of stably controlling the amount of force in both forward and reverse directions is disclosed in Taiwan New Model No. M323375 (Patent Document 1) as shown in FIG. One end of the socket 95 is provided with a hexagonal fitting hole 96 for driving the workpiece head portion 100A (nut or bolt head portion). The fitting hole 96 of the socket 95 is at the center of the inner wall of at least three sides. A rectangular engagement portion 97 is formed at a location along the axial direction, and each rectangular engagement portion 97 forms a surface-to-surface joining mode around the workpiece head portion 100A at the same time.

While the known non-slip sockets described above can drive a nut or bolt head and improve the nut or bolt head slip problem, there are still drawbacks.
As an example, the socket 95 is formed with a rectangular engaging portion 97 along the axial direction in the center of the inner wall of at least three sides. When working, the workpiece head portion 100A (nut or bolt head portion) is attached to the socket 95. Fit into the engagement hole 96. At this time, since each plane cannot be fitted unless it corresponds accurately, it takes time and effort to cope.
In addition, when projecting and deforming on one surface of the workpiece head part 100A, it is more difficult to fit and it may not be possible to fit, so it cannot be said to be an ideal design.
Furthermore, since the known non-slip socket uses a meshing method by bonding three surfaces, if the surface of the workpiece head 100A is deformed, no wobbling or the like occurs when the meshing rotation operation is performed. In addition to causing a stable phenomenon, it will detach when force is applied, and this point also needs to be improved.
Thus, improving the drawbacks of using known art socket structures is an important challenge for vendors or experts to solve and overcome.

  The inventor has worked on research and development of solutions for the disadvantages of use and the non-ideal structure of known non-slip sockets, due to more convenient usability, stable operation and abrasion of the nut or bolt head. As a result of various studies, the present invention was invented to contribute to society and promote the development of the industry by providing a structure of an engaging rotation tool that can overcome the problem of difficulty in meshing.

  The purpose of the present invention is to enable rotation of a workpiece such as a nut or bolt head as usual, and to tighten and loosen even if the nut or bolt head is worn or damaged. An object of the present invention is to provide a structure of an engaging rotary tool which is improved in overall use convenience and economic effect and has excellent market competitiveness.

  Another object of the present invention is that it has excellent meshing power when combined with a work such as a nut or a bolt head part, and has excellent meshing power and extremely good practicality. It is providing the structure of the engagement rotation tool which has these.

The means employed by the present invention to achieve the aforementioned object includes a socket base and a socket slot. A socket slot is provided in the socket base, and the socket slot includes three first slot walls, three second slot walls, and six third slot walls, and the surface around the socket slot is combined. And a third groove wall is located between the first groove wall and the second groove wall, forming a circumferential arrangement of the first groove wall / the third groove wall / the second groove wall.
In the configuration described above, the first groove wall forms an arc surface, and the second groove wall forms a curved surface. The second groove wall includes two assembly surfaces, and the joining location of the two assembly surfaces forms an obtuse angle greater than 90 degrees.

  The technical means of the present invention further includes a socket base and a socket slot. A socket slot is provided in the socket base, and a surface around the socket slot includes one or more first groove walls and one or more second groove walls, and the first groove wall forms an arc surface; The second groove wall forms a curved surface. The second groove wall includes two assembling surfaces, and the joining location of the two assembling surfaces is formed with an obtuse angle of more than 90 degrees, and at least one of the first groove wall and the second groove wall are disposed to face each other. Yes.

It is FIG. (1) which shows the structure of a well-known socket. It is FIG. (2) which shows the structure of a well-known socket. It is a figure which shows the three-dimensional structure of 1st Example of this invention. It is a figure which shows the upper surface of 1st Example of this invention. It is a figure which shows 1st Example of this invention. It is a figure which shows 2nd Example of this invention. It is a figure which shows the upper surface of 2nd Example of this invention.

  In order to further understand and recognize the technical features of the present invention and the effects achieved, the following detailed description is made with reference to preferred embodiments and the drawings.

Reference is made to the first embodiment of the engaging and rotating tool structure of the present invention, which can be applied to general wrench, socket wrench and other rotating tools in FIGS. Here, description will be made using an application example of a socket wrench.
As shown in the figure, the engaging rotation tool structure of the present invention has a socket 10, the socket 10 is provided with a socket base 20 located inside, and a socket slot 30 is provided at the center of the socket base 20, As the socket slot 30, for example, a hole or a recess is selected. In this embodiment, the socket slots 30 are selected as follows.
The socket base 20 forms a plurality of first groove walls 21, second groove walls 22, and third groove walls 23 around the surface of the socket groove 30, and the third groove wall 23 is formed with the first groove wall 21. Located between the second groove wall 22 and the first groove wall 21 / third groove wall 23 / second groove wall 22 / third groove wall 23 / first groove wall 21 / third groove wall 23 Form a circumferential arrangement. In the present embodiment, three first groove walls 21, three second groove walls 22, and six third groove walls 23 are provided.

  The first groove wall 21 forms an arc surface, the second groove wall 22 forms a curved surface, and includes an assembly surface 221 that combines the two curved surfaces, and the joining location of the two assembly surfaces 221 is an α angle (see FIG. 4), and the α angle forms an obtuse angle larger than 90 degrees. The two assembly surfaces 221 are respectively connected to third groove walls 23 located on both sides of the second groove wall 22, and the third groove wall 23 forms a substantially arc surface or actual face. In the present embodiment, the third groove wall 23 has a substantially arc surface.

  In particular, the surface arrangement around the socket slot 30 described above is such that the first groove wall 21 and the second groove wall 22 are provided substantially opposite to each other, and the opposite side (diagonal side) of the first groove wall 21 is provided. ) Is provided with a second groove wall 22. The third groove wall 23 and another third groove wall 23 are also opposed to each other, that is, the third groove wall 23 is also provided on the opposite side (diagonal side) of the third groove wall 23.

Continuing to refer to FIG. 5, the first embodiment of the structure of the engagement turning tool of the present invention. A hexagonal nut 200 (or bolt head portion) is fitted into the socket slot 30 of the socket 10, and the nut 200 has six end surfaces including six end angles 202 and three side surfaces 201 and 203. Among these, the side surface 201 and the side surface 203 are adjacent to each other, the side surface 201 of the nut 200 is in contact with the second groove wall 22, and the side surface 203 is in contact with the first groove wall 21.
The three end angles 202 provided in the nut 200 are located opposite to each other on the third groove wall 23 to form a form that does not contact or contact.
In this embodiment, a total of three side surfaces 201 are in contact with the second groove wall 22, and the other three side surfaces 203 are in contact with the first groove wall 21. When operating, when a force is applied to the socket 10 and the nut 200 is rotated, the side surface 201 and the side surface 203 of the nut 200 have different orientations due to the plurality of line contacts provided in the second groove wall 22 and the first groove wall 21 respectively. The nut 200 can be turned and the nut 200 can be tightened and loosened.

Continuing to refer to FIG. 6, a structural embodiment 2 of the engagement turning tool of the present invention. Here, the end angle 202A of the nut 200A (or the bolt head portion) is worn or damaged after a lapse of time.
The socket slot 30 of the socket 10 is fitted into the nut 200A (or bolt head portion). The nut 200 </ b> A has three end angles 202 </ b> A (a worn or damaged state), three side surfaces 201, and six end surfaces including three side surfaces 203. The side surface 201 of the nut 200 </ b> A is in contact with the second groove wall 22, and the side surface 203 is in contact with the first groove wall 21. The six end angles 202A included in the nut 200A are opposed to each other and form a form that is not brought into contact with the third groove wall 23.
When working, a force is applied to the socket 10 to rotate the nut 200 </ b> A, and the side surface 201 and the side surface 203 of the nut 200 </ b> A contact the second groove wall 22 and the plurality of surfaces provided in the first groove wall 21, respectively. Thus, the nut 200A can be rotated by forming action points having different orientations.
As described above, even when the end angle 202A of the nut 200A (or the bolt head portion) is worn or damaged, the nut 200A can be tightened and loosened by applying the structural design of the present invention.

Continuing to refer to the second embodiment of the engagement turning tool of the present invention in FIG. In this embodiment, a design change is added based on the structure of the first embodiment.
The difference is that the first groove wall 21 of the socket 20 has at least one concave arc surface 211 in an appropriate place (section) of the arc surface shape, and the concave arc surface 211 and the arc surface of the first groove wall 21 are uneven direction. Are provided in conflict. As shown in the figure, the arc surface of the first groove wall 21 forms a concave arc shape drawn inward, whereas the concave arc surface 211 forms a convex arc surface outward.
For this reason, the periphery of the nut or bolt head portion (not shown) attached to the socket slot 30 forms a bonding contact more appropriately with the concave arc surface 211 to form a better contact power and tighten And can respond to loosening work.

  The structure of the engagement rotating tool of the present invention can be provided for use of a workpiece such as a nut or a bolt head portion by the above-described configuration, and even if the corner portion of the nut or the bolt head is worn or damaged, It can cope with the work of tightening and loosening the work, and can improve the overall convenience of use and economic effect. In addition, if the present invention is applied, when fitting to a workpiece such as a nut or a bolt head part, it has extremely good convenience and ease, excellent meshing power, and extremely good practicality and Has market competitiveness.

  As stated above, the present invention meets the requirements of the patent. Although the embodiments of the present invention have been described in detail with reference to the drawings, all are merely preferred examples, and the specific configuration is not limited to these embodiments. Shapes, structures, features, design changes, and the like within the scope of the present invention are also included in the scope of the claims.

10 socket 20 socket base 21 first groove wall 22 second groove wall 221 assembly surface 23 third groove wall 30 socket groove 200 nut 201 side surface 202 end angle 203 side surface 200A nut 202A end angle 211 concave arc surface

Claims (16)

The structure of the engaging rotation tool,
Socket base,
The socket base is internally provided, and the three first groove walls, the three second groove walls, and the six third groove walls are combined to form a surrounding surface, and the third groove wall is A socket groove located between the first groove wall and the second groove wall and forming a circumferential arrangement of the first groove wall / the third groove wall / the second groove wall;
In the above-described configuration, the first groove wall forms an arc surface, the second groove wall forms a curved surface, and the second groove wall includes two assembly surfaces, and the two assembly surfaces are joined to each other. The location is characterized by forming an obtuse angle greater than 90 degrees,
The structure of the engaging rotation tool.   The structure of the engaging rotation tool according to claim 1, wherein the third groove wall of the socket base forms a substantially arc surface or a real face.   The structure of the engaging rotation tool according to claim 1, wherein the first groove wall and the second groove wall are disposed to face each other.   A workpiece is fitted into the socket slot, the workpiece is a nut or bolt head, the workpiece has a plurality of end faces, and the end faces are a first groove wall and a second groove, respectively. The structure of the engaging rotation tool according to claim 1, wherein a line contact is formed with the wall.   The workpiece has a plurality of end angles, and the end angles are opposed to the third groove wall, and form an aspect in which the workpiece does not contact or abut on the third groove wall. Item 5. The structure of the engagement turning tool according to Item 4.   The structure of the engaging rotation tool according to claim 1, wherein the socket base can be coupled to a wrench, a socket or other rotation tool.   The structure of the engaging rotation tool according to claim 1, wherein the first groove wall is provided with at least one concave arc surface in a predetermined section having an arc surface shape.   The structure of the engaging rotation tool according to claim 7, wherein the concave arc surface is provided in a protruding direction opposite to the arc surface of the first groove wall. The structure of the engaging rotation tool,
Socket base,
In the socket base, the surrounding surface includes one or more first groove walls and one or more second groove walls, and the first groove walls form an arc surface, The two groove walls form a curved surface, the second groove wall includes two assembly surfaces, and forms an obtuse angle greater than 90 degrees at a joint location of the two assembly surfaces, and at least one of the first groove walls And a socket slot provided so as to face the second groove wall,
The structure of the engaging rotation tool.   The surface around the socket groove includes three first groove walls, three second groove walls, and six third groove walls, and the third groove wall includes the first groove wall and the second groove. The structure of the engaging rotation tool according to claim 9, wherein the structure is located between the wall and forms a circumferential arrangement of the first groove wall / the third groove wall / the second groove wall.   The structure of the engaging rotation tool according to claim 10, wherein the third groove wall of the socket base forms a substantially arc surface or a real face.   A workpiece is fitted into the socket slot, the workpiece is a nut or bolt head, the workpiece has a plurality of end faces, and the end faces are a first groove wall and a second groove, respectively. The structure of the engaging rotation tool according to claim 9, wherein the structure is in line contact with the wall.   A workpiece is fitted into the socket slot, the workpiece is a nut or a bolt head, the workpiece has a plurality of end angles, and the end angles are in the third groove wall. The structure of the engaging rotation tool according to claim 10, wherein the engaging rotation tool forms an aspect that is opposed to and is not in contact with the third groove wall.   The structure of the engaging rotation tool according to claim 9, wherein the socket base is connectable to a wrench, a socket or other rotation tool.   The structure of the engaging rotation tool according to claim 9, wherein the first groove wall is provided with at least one concave arc surface in a predetermined section having an arc surface shape.   The structure of the engaging rotation tool according to claim 15, wherein the concave arc surface is provided in a protruding direction opposite to the arc surface of the first groove wall.

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