TW201813785A - Anti-slip wrench-type tool - Google Patents

Abstract

A wrench-type tool that utilizes a plurality of engagement features to efficiently transfer torque to a fastener in order to rotate said fastener. The wrench-type tool includes a wrench-type torque-tool body. The wrench-type torque-tool body is the physical structure used to apply a torque force onto the fastener and includes a plurality of internal sidewalls and a plurality of engagement teeth. The plurality of internal sidewalls is radially distributed about a pivot axis of the wrench-type torque-tool body. Each of the plurality of engagement teeth is adjacently connected to a corresponding sidewall from the plurality of internals sidewalls in order to directly engage the sidewalls of the fastener. To increase the total contact surface with the fastener, a prismatic altitude for each of the plurality of engagement teeth is aligned parallel to the pivot axis. Furthermore, each of the plurality of engagement teeth is oriented towards the pivot axis.

Description

Non-slip wrench tool

This invention relates to a tool designed to tighten or looseen fasteners, such as screws and nuts. More particularly, the present invention is an anti-slip wrench type tool designed to incorporate screws, nuts, and other similar fasteners that are less prone to slippage.

Hex bolts, nuts, screws, and other similar threaded devices are used to securely bond a plurality of workpieces together by incorporating complementary threads, such as male or female threads. The fasteners of these types generally have a cylindrical shaft, an external thread on the surface of the shaft, and a head at one end of the shaft. The external thread and a complementary female threaded knot that taps the hole or nut to secure the fastener and bond the workpiece together. The head of the fastener is a means for rotating or driving the fastener into the female thread. The head of the fastener is shaped to allow an external tool, such as a wrench, to apply torque to the fastener, allowing the fastener to be bonded to the female thread to some extent. These fasteners are simple, inexpensive, and effective, so they are commonly used in modern industry.

One of the most common problems with these fasteners is that these tools slide over their heads, whether they are male or female fasteners. This problem is often caused by worn fasteners or tools, rust, excessive tightening, or breakage of the fastener head.

The present invention is a wrench or socket wrench that eliminates slippage. A feature of the design of the present invention is a plurality of snap teeth. The bite teeth are capable of effectively transferring the contact point from the corners of the fastener to the side wall of the fastener, and allowing the torsion to be applied to the fastener, tightening or slackening the fastener. The present invention can be used to tighten or loosen the edges of the fasteners when tightening and slackening the fasteners.

The illustrations used in the present specification are only intended to illustrate certain embodiments of the invention, and the scope of the invention is not limited by the illustrations.

The present invention is an anti-slip wrench type tool for tightening or slackening fasteners such as screws and nuts. In conventional wrenches, most of the torque is transferred to the fasteners via the side edges of the fastener head. As the use time increases, the wear degradation of the side edges reduces the efficiency of transferring the torque from the wrench to the fastener head and can cause slippage. The present invention overcomes the above problems by transferring the contact points to the side walls of the fastener head. The present invention achieves the above object by a plurality of occlusal teeth. Each of the engaging teeth is arranged to engage or bite the side wall of the fastener head rather than the side edges of the fastener head. This ensures that an appropriate amount of torque is transmitted to the fastener head to initiate rotation of the fastener and to remove or tighten the fastener.

The present invention uses a plurality of snap-tooth snap fasteners on the side of the head (including fasteners that are damaged or otherwise) to effectively impart torque to the fastener. The invention can be combined with a variety of general tools or used with a variety of general tools to increase the torque transmitted to the fastener. Typical tools include, but are not limited to, open end wrenches, adjustable wrenches, pipe wrenches, socket wrenches, plumbing wrenches, and other similar fastener bonding tools. The invention is compatible with fasteners that use a male head. A male-type head fastener, which is generally referred to as a male fastener, is used with the side of the fastener head to engage with a tool for locking or slackening. Such fasteners include hex bolts and nuts. The invention may also be compatible with right hand thread fasteners as well as left hand thread fasteners. The invention can also be modified or planned to accommodate different types and sizes of fasteners.

Please refer to Figure 1. The invention comprises a wrench type torsion tool body 1. The wrench type torsion tool body 1 is a physical structure that applies a torsion to the head of the fastener. In one embodiment of the invention, the wrench-type torsion tool body 1 is a tubular projection that is sized to fit the fastener in an interlocking manner, essentially a wrench sleeve. The length, width, and diameter of the wrench-type torsion tool body 1 can be varied to match different sizes of fasteners. The wrench type torque tool body 1 includes a plurality of inner side walls 2 and a plurality of engaging teeth 7. A plurality of inner side walls 2 are radially distributed around a pivot 13 of the wrench type torsion tool body 1 to define an aperture for receiving the fastener head. In one embodiment of the invention, the plurality of inner sidewalls 2 comprise six side walls that are planned to have a hexagonal shape, as shown in FIG. Different numbers of inner sidewalls 2 can be used to create different shapes. The plurality of snap teeth 7 can prevent slippage between the wrench type torque tool body 1 and the fasteners coupled thereto. Conventional wrench-type tools use the corners of the fastener head as a point of contact to transmit torque to the fastener. With a plurality of snap teeth 7, the present invention effectively transfers the contact points from the corners of the fastener head to the side walls of the fastener head. In this way, the chance of sliding can be greatly reduced, and the user can effectively apply the torque to the fastener. At the same time, the contact point is arranged on the side wall of the fastener head to prevent the fastener head from being worn or peeled off.

Please refer to Figures 4 and 5. Each of the engaging teeth 7 is coupled to an associated side wall 6 of the plurality of inner side walls 2. Each of the engaging teeth 7 is a prism and the prism has a height. This allows the contact point of the fastener to exist in each of the plurality of inner side walls 2. Please refer to Figure 7. The prism height 14 of each of the snap teeth 7 is arranged parallel to the pivot 13 to increase the contact area between the present invention and the fastener. That is, each of the engaging teeth 7 extends from the top surface to the bottom surface of the wrench type torsion tool body 1. Further, each of the engaging teeth 7 is arranged toward the pivot 13, as shown in Figs. 1 and 6, to ensure that the portion of the present invention in contact with the fastener has only a plurality of engaging teeth 7.

Please refer to Figure 5. In one embodiment of the invention, each of the snap teeth 7 is arranged intermediate the associated side wall 6 to transfer the contact points from the corners of the fastener to the side walls of the fastener. Arranging each of the engaging teeth 7 in the middle of the associated side wall 6 allows the present invention to avoid the possibility of biting the corners of the fastener head when loosening or tightening the fastener. The cross section of each of the engaging teeth 7 is a quadrangle. The quadrilateral includes a first baseline 9, a second baseline 10, a first leg line 11, and a second leg line 12. The first baseline 9 overlaps the associated side wall 6 and serves as the junction of each of the engaging teeth 7 and the associated side wall 6. The second baseline 10 is relative to and parallel to the first baseline 9. The first leg line 11 is between the first baseline 9 and the second baseline 10 and connects the first baseline 9 and the second baseline 10. The second leg line 12 is opposite to the first leg line 11 and is located between the first baseline 9 and the second baseline 10 and connects the first baseline 9 and the second baseline 10. In one embodiment of the invention, the quadrilateral is symmetrical with respect to a centerline that is perpendicular to the first baseline 9 and intermediate the first leg line 11 and the second leg line 12. This symmetrical design ensures that the invention works the same when rotating clockwise and counterclockwise.

In one embodiment of the invention, the quadrilateral tapers from the second baseline 10 toward the first baseline 9 to form a trapezoid. Thus, the first leg line 11 has a first acute angle 22 with respect to the associated side wall 6, and the second leg line 12 has a second acute angle 23 with respect to the associated side wall 6. Thus, between the second baseline 10 and the first leg line 11, and between the second baseline 10 and the second leg line 12, a sharp corner is produced. These sharp edges can bite into the fastener head to increase the friction between the present invention and the fastener, thereby allowing the torque to be transmitted to the fastener more efficiently. In one embodiment of the invention, the ratio of one length 19 of the associated side wall 6 to a length 21 of the second baseline 10 is 3:1. This ensures an appropriate contact area between the invention and the fastener. In one embodiment of the invention, the ratio of one length 20 of the first baseline 9 to the length 21 of the second baseline 10 is 1.1:1.

Referring to FIG. 8 and FIG. 10, in one embodiment of the present invention, the quadrilateral is a rectangle, wherein the first leg line 11 is perpendicular to the associated side wall 6, and the second leg line 12 is also perpendicular to the associated side wall. 6, and form a rectangle, as shown in Figure 9. The rectangular shape can reduce the pressure point to increase the service life of the present invention.

As described above, the present invention can be designed to be suitable for use in various fasteners. The present invention can accommodate a variety of different fasteners by varying the number of multiple snap teeth 7 and the number of inner side walls 2. The number of the plurality of snap teeth 7 and the number of the plurality of inner side walls 2 correspond to the number of sides of the fastener head. For example, for a pentagon fastener, the number of the plurality of occlusal teeth 7 and the number of the plurality of inner side walls 2 are five.

In one embodiment of the invention, the invention further includes an attachment member that allows an external torsion tool to be attached to the wrench-type torsion tool body 1 to increase the torque applied to the fastener. In general, this embodiment is a design of a socket wrench of the present invention. Please refer to Figure 1 and Figure 2. The present invention further includes a cylindrical attachment body 15 and a coupling hole 16 for attaching an external torsion tool, such as a ratchet wrench handle, to the wrench type torsion tool body 1. The center of the cylindrical attachment body 15 is on the pivot 13, and the cylindrical attachment body 15 is distributed along the pivot 13 with its axis of rotation overlapping the axis of rotation of the external torsion tool. As shown in Fig. 2, the cylindrical attachment body 15 is coupled to the wrench type torsion tool body 1. In one embodiment of the invention, the wrench-type torsion tool body 1 is of a tubular configuration, and the diameter of the cylindrical attachment body 15 is slightly larger than the diameter of the wrench-type torsion tool body 1. The coupling hole 16 is in a position relative to the wrench-type torsion tool body 1 and penetrates the cylindrical attachment body 15 along the pivot 13. The shape of the coupling hole 16 is a positive attachment member that can accept an external torque tool. Since most of the external torsion tools use square attachment elements, in one embodiment of the invention, the coupling holes 16 are square. In other embodiments of the invention, the shape and design of the coupling aperture 16 and the cylindrical attachment body 15 can be varied in conjunction with different external torsion tools and their attachment means.

In one embodiment of the invention, the wrench type torsion tool body 1 is directly coupled to a torsion tool to form a typical closure wrench. Please refer to Figure 6. In one embodiment of the invention, the invention further includes a wrench handle 17. The wrench handle 17 is attached to the periphery of the wrench type torsion tool body 1, and as a lever arm, the torque applied to the fastener can be substantially increased. The length of the wrench handle 17 can be varied as desired, with the longer wrench handle 17 producing greater torque and the shorter wrench handle 17 producing less torque. In addition, the shape, design, and material composition of the wrench handle 17 can also be varied depending on the needs of the user. For example, different areas of the wrench handle 17 can be padded to increase ease of use and comfort. In one embodiment of the invention, the invention further includes a fastener receiving opening 18 to form a typical open end wrench. The fastener accommodating opening 18 passes through the wrench type torque tool body 1 from a direction perpendicular to the pivot shaft 13, and the fastener accommodating port 18 is opposed to the wrench handle 17 via the wrench type torque tool body 1. In areas with insufficient space, it is difficult for users to operate the tools. The fastener housing 18 allows the user to easily reach the fastener in a narrow area.

In one embodiment of the invention, the plurality of inner sidewalls 2 comprise: an optional sidewall 3, and an adjacent sidewall 4. Any of the side walls 3 represents any of a plurality of inner side walls 2; adjacent side walls 4 represent the side walls of any of the side walls 3. In this embodiment, any of the side walls 3 and adjacent side walls 4 are joined by a rounded corner 5.

In summary, the present invention has excellent advancement and practicability in similar products, and at the same time, the technical materials of such structures are frequently investigated at home and abroad, and the same structure is not found in the literature. The invention already has the invention patent requirements, and the application is filed according to law.

However, the above-mentioned ones are merely preferred embodiments of the present invention, and the equivalent structural changes of the present invention and the scope of the claims are intended to be included in the scope of the present invention.

1‧‧‧Wrench type torque tool body

2‧‧‧ inner side wall

3‧‧‧any side wall

4‧‧‧ adjacent side wall

5‧‧‧ fillet

6‧‧‧related sidewalls

7‧‧‧Bite teeth

9‧‧‧First baseline

10‧‧‧second baseline

11‧‧‧First foot line

12‧‧‧Second foot line

13‧‧‧ pivot

14‧‧‧Prismatic height

15‧‧‧Cylindrical attached body

16‧‧‧Combination hole

17‧‧‧Wrench handle

18‧‧‧fastener accommodation

19‧‧‧The length of the opposite side wall

20‧‧‧ Length of the first baseline

21‧‧‧ Length of second baseline

22‧‧‧First acute angle

23‧‧‧Second acute angle

Figure 1 is a perspective view of the present invention. Figure 2 is a bottom perspective view of the present invention. Figure 3 is a side view of the invention. Fig. 4 is a cross-sectional view of the present invention taken from a section taken along line A-A of Fig. 3. Figure 5 is a partially enlarged cross-sectional view of the present invention taken from the elliptical shape Y of Figure 4. Figure 6 is a perspective view of another embodiment of the present invention. Fig. 7 is an enlarged perspective view of a portion C of the circle of Fig. 6. Figure 8 is a cross-sectional view showing still another embodiment of the present invention, taken from the section taken along the line Y-Y of Figure 3. Figure 9 is a partially enlarged cross-sectional view showing still another embodiment of the present invention, taken from the elliptical shape X of Figure 8. Figure 10 is a perspective view of still another embodiment of the present invention.

Claims (18)

An anti-slip wrench type tool comprising: a wrench type torsion tool body, wherein the wrench type torsion tool body comprises: a plurality of inner side walls and a plurality of engaging teeth; the plurality of inner side walls radially around the wrench type a pivotal distribution of the torsion tool body; each of the engaging teeth being coupled to an associated side wall of the plurality of inner side walls; a prismatic height of each of the engaging teeth being parallel to the pivot; each of the engaging teeth facing the pivot axis. The non-slip wrench type tool according to claim 1, wherein each of the engaging teeth has a quadrangular cross section; a first baseline of the quadrilateral overlaps the associated side wall; and a second baseline of the quadrilateral is opposite And parallel to the first baseline. The non-slip wrench type tool of claim 2, wherein a ratio of a length of the associated side wall to a length of the second baseline is 3:1. The non-slip wrench type tool according to claim 2, wherein the quadrilateral is tapered from the second baseline toward the first baseline; a first leg line of the quadrilateral has a first An acute angle; a second leg line of the quadrilateral has a second acute angle with the associated sidewall member; the first leg line and the second leg line face each other. The anti-slip wrench type tool of claim 4, wherein a ratio of a length of the first baseline to a length of the second baseline is 1.1:1. The non-slip wrench type tool of claim 2, wherein a first leg line of the quadrilateral is perpendicular to the associated side wall; a second leg line of the quadrilateral is perpendicular to the associated side wall. The non-slip wrench type tool of claim 1, wherein each of the engaging teeth is located in the middle of the associated side wall. The anti-slip wrench type tool according to claim 1 further includes a cylindrical attachment body and a coupling hole, wherein the center of the cylindrical attachment body is on the pivot, and the cylindrical attachment The body is distributed along the pivot; the cylindrical attachment body is coupled to the wrench-type torsion tool body; the coupling hole is at a position relative to the wrench-type torsion tool body, and the cylindrical attachment is inserted along the pivot Install the body. The non-slip wrench type tool according to claim 1 further includes a wrench handle, wherein the wrench handle is coupled to the periphery of the wrench type torque tool body. The anti-slip wrench type tool according to claim 9 further includes a fastener receiving opening, wherein the fastener receiving opening penetrates the wrench-type torsion tool body from a direction perpendicular to the pivot; the fastener The accommodating port is spaced relative to the wrench handle by the wrench type torque tool body. The non-slip wrench type tool according to claim 1, wherein the plurality of inner side walls comprise: an arbitrary side wall and an adjacent side wall; the any side wall and the adjacent side wall are connected by a rounded corner. An anti-slip wrench type tool comprising: a wrench type torsion tool body, wherein the wrench type torsion tool body comprises: a plurality of inner side walls and a plurality of engaging teeth; the plurality of inner side walls radially around the wrench type torque a pivotal distribution of the tool body; each of the engaging teeth being coupled to an associated side wall of the plurality of inner side walls; a prism height of each of the engaging teeth being parallel to the pivot; each of the engaging teeth facing the pivot Each of the occlusal teeth has a quadrangular cross section; a first baseline of the quadrilateral overlaps the associated sidewall; a second baseline of the quadrilateral is opposite and parallel to the first baseline; a first leg of the quadrilateral The line is perpendicular to the associated sidewall; a second leg of the quadrilateral is perpendicular to the associated sidewall. The anti-slip wrench type tool of claim 12, wherein a ratio of a length of the associated side wall to a length of the second base line is 3:1. An anti-slip wrench type tool according to claim 12, wherein each of the engaging teeth is located in the middle of the associated side wall. The anti-slip wrench type tool according to claim 12, further comprising a cylindrical attachment body and a coupling hole, wherein the center of the cylindrical attachment body is on the pivot, and the cylindrical attachment The body is distributed along the pivot; the cylindrical attachment body is coupled to the wrench-type torsion tool body; the coupling hole is at a position relative to the wrench-type torsion tool body, and the cylindrical attachment is inserted along the pivot Install the body. The anti-slip wrench type tool according to claim 12, further comprising a wrench handle, wherein the wrench handle is coupled to the outer periphery of the wrench type torque tool body. The anti-slip wrench type tool according to claim 16 further includes a fastener receiving opening, wherein the fastener receiving opening penetrates the wrench-type torsion tool body from a direction perpendicular to the pivot; the fastener The accommodating port is spaced relative to the wrench handle by the wrench type torque tool body. The non-slip wrench type tool according to claim 12, wherein the plurality of inner side walls comprise: an arbitrary side wall and an adjacent side wall; the any side wall and the adjacent side wall are connected by a rounded corner.