TW202241651A - Anti-slip fastener remover tool - Google Patents

Abstract

An anti-slip fastener remover tool includes a torque-tool body, a plurality of paired engagement features, and an intersection point. The plurality of paired engagement features that grips the lateral surface of the stripped fastener head is radially positioned around a rotation axis of the torque-tool body. The plurality of paired engagement features, wherein each paired engagement feature is offset by 30 degrees, comprises a first engagement feature and a second engagement feature. The first engagement feature and the second engagement feature each comprises a bracing section, a cavity section, and a connector section that are adjacently connected to each other. The cavity section of the first engagement feature is adjacently connected to the cavity section of the second engagement feature. The bracing sections of the first engagement feature and the second engagement feature are oppositely positioned of each other about the cavity sections of the first and second engagement features.

Description

Non-Slip Fastener Removal Tool

The present invention relates to tools for locking and releasing fasteners such as screws and nuts. In particular, the present invention is a non-slip fastener removal tool designed to be less likely to slip when loosening screws, nuts, and other similar fasteners.

Hex bolts, nuts, screws, and other similar threaded devices are used to securely join multiple workpieces together by engaging complementary threads, such as male or female threads. The structure of these types of fasteners generally has: a cylindrical shaft, an external thread on the surface of the shaft, and a head connected to one end of the shaft. The external thread is combined with a complementary female thread tapped into a hole or nut to hold the fastener and hold the workpiece together. The head of the fastener receives external torque and is the means used to rotate or drive the fastener into the female thread. The head of the fastener is specially shaped to allow an external tool, such as a screwdriver, to apply torque to the fastener, causing the fastener to engage to some degree with the female thread. These fasteners are simple, cheap and effective, so they are commonly used in modern industry. One of the common problems with these types of fasteners is that the tool often slips on the head, whether the fastener is male or female. Possible causes are: worn tools or fasteners, corroded tools or fasteners, overtightened fasteners, damaged fastener heads. There are various methods that can be used to remove a fastener, some of which are more invasive. Once the fastener head is damaged, more invasive methods are required to remove the pinched fastener. Some users remove fasteners by drilling them out with a drill. While this method works in some cases, it runs the risk of damaging the internal threads of the hole.

The present invention is a non-slip fastener removal tool that substantially eliminates slippage. The present invention uses a series of integrated joint segments to bite into the head of the fastener so that the torsion force can be efficiently transmitted from the torque tool to the head of the fastener. The invention allows the user to fasten or loosen the fastener without worrying that the corners of the fastener will be worn.

To achieve the above object, the present invention provides a non-slip fastener removal tool, which includes: In one embodiment, the present invention includes: a torque tool body, a plurality of paired coupling features, and at least one junction point. Pairs of bonding features radially surround an axis of rotation of the torque tool body. Each of the plurality of pairs of combined features further includes: a first combined feature, and a second combined feature. The cross-section of each of the first bonding feature and the second bonding feature further includes: a support region, a recess region, and a connection region. The supporting area and the cavity area are connected to each other by the connecting area. The recessed region of the first bonding feature is connected to the recessed region of the second bonding feature. The support area of the first bonding feature and the support area of the second bonding feature are opposed to each other across the recessed area of the first bonding feature and the recessed area of the second bonding feature. An arbitrary pair of bonded features, and an adjacent pair of bonded features, are connected to each other via junction points.

All elements of the invention can be reversed to produce a negative embodiment of the invention. The negative embodiment of the invention has all the features, functions, and elements of the invention. The engaging features of the female embodiment may engage the sides or sidewalls of a male fastener.

In a positive embodiment of the invention, the protrusion is directed away from the axis of rotation. However, in the female embodiment of the present invention, the protrusion is oriented in a direction close to the axis of rotation. More specifically, in the positive embodiment, the supporting area and the connecting area face away from the rotation axis; in the female embodiment, the supporting area and the connecting area face in a direction close to the rotating axis.

In yet another embodiment, the present invention includes: an attachment body, and a combination hole. The center of the attachment body is located on the rotation axis, and the attachment body extends along the rotation axis. The attachment body is connected to the torque tool body. The coupling hole penetrates the attachment body along the rotation axis and is opposite to the torque tool body.

The following is a detailed description of the specific embodiments with the attached drawings, and it will be easier to understand the purpose, technical content, characteristics and effects of the present invention.

1: Torque tool body

10: Attach the body

11: Combination hole

14: first angle

15: Second angle

16: Third Angle

17: First bisection angle

18: Second bisection angle

2: Rotation axis

20: outer wall

3: Pairwise binding features

31: Connection area

32: Arbitrary pairwise combination of features

33: Adjacent paired binding features

34: Junction point

35: radial distance

36: first length

37: second length

38: radial distance

39: radial distance

40: radial distance

41: radial distance

42: radial distance

43: radial distance

4: Support area

5: Dimple area

6: Equal line

7: The first binding feature

8: Second binding feature

Figure 1 is a perspective view of the present invention showing a torque tool body extending outwardly from the shaft of rotation to a plurality of pairs of engaging features.

Figure 2 is a side view of the present invention showing the torque tool body extending outwardly from the axis of rotation to a plurality of pairs of engaging features.

Figure 3 is a top view of the present invention showing the torque tool body extending outwardly from the axis of rotation to a plurality of pairs of engagement features.

Figure 4 is a top view of the present invention showing: the torque tool body extending outwardly from the axis of rotation to a plurality of pairs of engagement features, and showing: a curved region of the connection zone, a bisector, a first bisect the angle, and a second bisect the angle.

Figure 5 is a top view of the present invention showing: the torque tool body extending outwardly from the axis of rotation to a plurality of paired engagement features and showing: a sharp point of the attachment zone, a bisector, a first bisect the angle, and a second bisect the angle.

6 is a top view of the present invention showing: the torque tool body extending outwardly from the axis of rotation to a plurality of pairs of engagement features, and showing: a radial distance of the intersection points, a first length, and a second length.

Figure 7 is a top view of the present invention showing: the torque tool body extending outwardly from the axis of rotation to a plurality of pairs of engagement features, and showing: a radial distance of the intersection point, the connection zone of the first engagement feature A radial distance of , and a radial distance of the connecting region of the second bonded feature.

Figure 8 is a top view of the present invention showing the torque tool body extending inwardly from its outer wall to a plurality of pairs of engagement features.

Figure 9 is a bottom view of the present invention showing: a binding hole.

First of all, it should be specifically stated that the drawings used in this specification are only used to illustrate some embodiments of the present invention, and the scope of the present invention is not limited by these drawings.

The present invention is a tool with anti-slip function, which can be used to lock or remove damaged/worn fasteners, such as nuts or bolts. Traditional wrenches are designed such that most of the torque is transferred to the damaged/worn fastener through the side corners of the fastener head. Over time, the degradation of the flank angle reduces the efficiency of the wrench in transferring torque to the fastener head and causes slippage to occur. The present invention solves the above-mentioned problems by shifting the point of contact to the side of the fastener head. The present invention uses a plurality of occlusal teeth to achieve the object of the present invention. Each engaging tooth is positioned to engage or engage the side of the fastener head rather than engage or engage the corner of the fastener head side. In this way, it is ensured that the proper amount of torque is transmitted to the fastener head, and the rotation is initiated to lock or remove a damaged/worn fastener. However, the present invention can also be used with new or undamaged fasteners without damaging the fasteners under the application of the maximum torque allowable for the fasteners of that size.

The present invention utilizes multiple sets of engaging teeth to engage the sides of the head of the fastener (including damaged or otherwise condition fasteners) to effectively transfer torque to the damaged/worn fasteners. The present invention can be combined with or used for various general tools to increase the torque transmitted to the fastener. Typical tools include, but are not limited to: open-end wrenches, adjustable wrenches, pipe wrench, socket wrench, plumber's wrench, and other similar fastener binding tools. The present invention is compatible with fasteners using female heads. However, the present invention can also be applied to male head fasteners by combination. A fastener using a female head, which is generally called a female fastener, uses the inner hole of the fastener head to be combined with a tool for locking or loosening. A fastener with a male head, which is generally called a male fastener, uses the outer surface of the fastener head to be combined with a tool for locking or loosening. The present invention is also compatible with right-hand threaded fasteners and left-handed threaded fasteners. The present invention can also be changed or programmed to match fasteners of different types and sizes.

Please refer to Figure 1 to Figure 4. The present invention includes: a torsion tool body 1 , a plurality of paired coupling features 3 , and at least one junction 34 . The torque tool body 1 is a physical structure that uses a plurality of paired coupling features 3 to apply torque to the fastener head. For some fasteners, the torque tool body 1 functions like a screwdriver head, which can engage the opening at the head of the fastener in an interlocking manner. The length, width, and diameter of the torque tool body 1 can be changed to match male fasteners or female fasteners of different sizes. A plurality of pairs of coupling features 3 can prevent the slippage of the damaged/worn fastener when the fastener is taken out. A plurality of pairs of coupling features 3 radially surround a rotation axis 2 of the torque tool body 1 , as shown in FIGS. 3 to 6 and 8 . Thereby, a plurality of paired coupling features 3 can transfer the torsion force to the female/male fastener, and prevent slippage between the torque tool body 1 and the head of the fastener. The junction point 34 can be considered as the contact point of two paired bonding features 3 . In other words, any pair of bonding features 32 among the plurality of pairs of bonding features 3 , and an adjacent pair of bonding features 33 of the pair of bonding features 32 are connected to each other via the junction 34 . In various embodiments of the invention, the junction point 34 may be a sharp point, or an arcuate region with a small diameter. In some embodiments, the junction point 34 comprises a third segment; the third segment is preferably a linear region; the third segment is connected to any pair of bonding features 3 of the support area 4 and its adjacent between the paired bonding features 3 of the support area 4 . In Figures 1 to 7, the torque tool body 1 is a male embodiment designed to be used with a female socket fastener.

Plural pairs of coupling features 3 are distributed in the torque tool body 1 to form a polygon, and are preferably symmetrical to the rotation axis 2 , wherein the rotation axis 2 passes through the center of the torque tool body 1 . The symmetrical design of the present invention can ensure the same operation in both clockwise and counterclockwise directions.

Please refer to Figure 1. The torque tool body 1 extends outwardly from the rotating shaft 2 to a plurality of pairs of engagement features 3 . Thus, a plurality of pairs of coupling features 3 are distributed around the rotating shaft 2 on the outer surface of the torque tool body 1 , forming a structure similar to a screwdriver head in the present invention. The screwdriver head-like structure of the torque tool body 1 is associated with the opening of the fastener head, so that a plurality of pairs of coupling features 3 can be combined with the interior of the fastener head.

Please refer to Figure 8 and Figure 9 . The torque tool body 1 extends inwardly from its outer wall 20 to a plurality of pairs of engagement features 3 . Thus, a plurality of pairs of coupling features 3 are distributed around the rotating shaft 2 on the inner surface of the torque tool body 1 to form a female socket structure of the present invention. The female socket configuration of the torque tool body 1 is associated with the side surface of the fastener head so that a plurality of pairs of engagement features 3 can be engaged with the exterior of the fastener head. In Figures 8 and 9, the torque tool body 1 is a female embodiment designed to be used on the male surface of a fastener.

The present invention also includes an attachment feature that enables an external torque applying tool to be attached to the torque tool body 1 to increase the torque applied to the head of the fastener. Please refer to Figure 1, Figure 2, Figure 8, and Figure 9. The present invention further includes: an attachment body 10 and a combination hole 11, which can allow an external torque applying tool to be attached to the torque tool body 1, wherein the external torque applying tool can be an open-end wrench, a closed-end wrench, a combination wrench, Adjustable wrench, box wrench, or ratchet wrench. The center of the attachment body 10 is located at the rotation axis 2, and the attachment body 10 extends along the rotation axis 2, thereby aligning the rotation axis of the external torque applying tool. The attachment body 10 is connected to the torque tool body 1 . More preferably: the diameter of the attachment body 10 is slightly larger than the diameter of the torque tool body 1 . However, depending on the chosen design and manufacturing method, the diameter of the attachment body 10 may be smaller than or equal to the diameter of the torque tool body 1 . The coupling hole 11 penetrates the attachment body 10 along the rotation axis 2 . The coupling hole 11 is shaped to accept the male attachment element of a socket wrench. due to most The split socket wrench uses a square male attachment element, and the shape of the combined hole 11 is preferably square. In other embodiments of the present invention, the design and shape of the attachment body 10 and the coupling hole 11 can be changed to adapt to different torque applying tools and different attachment means. In the present invention, the shapes of the attachment body 10 and the coupling hole 11 are not limited to cylinder and square. In other embodiments of the present invention, the outer surface of the attachment body 10 may be subjected to surface grip strengthening treatment, such as knurling or other treatments, so as to increase the friction between the torque tool body 1 and the user's palm.

A bottom surface of the attachment body 10 can be sloped from the engagement hole 11, so that a plurality of pairs of engagement features 3 can be hammered into the damaged/worn fastener head without striking the engagement hole 11 . In other words, depending on the preference of the user, the diameter of the attachment body 10 near the coupling hole 11 can be slightly larger than the diameter of the attachment body 10 near the torque tool body 1, so that the bottom surface of the attachment body 10 can be gradually inclined from the coupling hole 11 . In some embodiments of the present invention, the attachment body 10 does not include the coupling hole 11; the attachment body 10 itself serves as a coupling feature between the present invention and the external torque tool. The exterior of the attachment body 10 may be hexagonal or square, capable of receiving a torque applied from an external torque tool, such as a wrench, socket, or pliers. In other embodiments of the present invention, the attachment body 10 may include a wrench handle, wherein the wrench handle is preferably connected to the torque tool body 1 by a diameter surface. In other words, the wrench handle is vertically connected to the torque tool body 1 in a direction perpendicular to the rotation axis 2 .

Furthermore, a wrench handle can be connected to the periphery of the torque tool body 1, wherein the wrench handle can be used as an external torque applying tool. When the torque tool body 1 is female, each of the plurality of pairs of engaging features 3 extends along the torque tool body 1 for a specific length to define a space within the torque tool body 1 . The above-mentioned space is used as an accommodating hole for the head of the fastener; thereby, a plurality of paired coupling features 3 can clamp and bite the side wall of the head of the fastener. The present invention further includes: a fastener accommodating hole, which passes through the torque tool body 1 . The fastener accommodating hole is perpendicular to the rotation axis 2 and opposite to the handle of the wrench, and passes through the torque tool body 1 to provide an opening in a side direction for combining a plurality of pairs of coupling features 3 .

In one embodiment of the present invention, the attachment body 10 includes a quick-connect feature that is also commonly used in drill, impact drill, and screwdriver attachment modules.

A plurality of pairs of coupling features 3 are equidistantly distributed on the torque tool body 1 to form a closed shape, as shown in FIG. 3 and FIG. 8 . In order to configure this closed shape, the plurality of combined features 3 further include: a first combined feature 7 , a second combined feature 8 , and a bisector 6 .

As shown in FIGS. 3 and 8 , the cross-section of each of the first bonding feature 7 and the second bonding feature 8 further includes: a supporting area 4 , a cavity area 5 , and a connecting area 31 . In more detail, the support area 4 and the pocket area 5 are connected to each other by the connection area 31 to form a single bonding feature; when removing a damaged/worn fastener, each single bonding feature will cut into the fastener head. More preferably: the connection area 31 is a small protrusion. However, the connection area 31 may also be an angled shape or a concave shape. In one embodiment of the invention, the connecting region 31 is a sharp junction. More preferably, the length of the connecting region 31 is smaller than the lengths of the support region 4 and the cavity region 5 of the first bonding feature 7 and the second bonding feature 8 . However, there can also be any desired ratio between the length of the connecting region 31 and the lengths of the other elements of the first bonding feature 7 and the second bonding feature 8 . In some embodiments of the present invention, the support region 4, the connection region 31, and the first portion of the cavity region 5 are continuous and collinear. In a single male bonding feature, the support region 4 acts as the third bonding feature, the cavity region 5 acts as the first bonding feature, and the connecting region 31 acts as the second bonding feature. However, it should be understood that in a negative embodiment of the invention, the order of the paired binding features 3 is reversed. Furthermore, the order of the paired combination features 3 is not limited to the above-mentioned order. In some embodiments, or application examples, or fasteners of the present invention, the order of the paired combination features 3 can be any order. For example, in a sequence of paired combination features 3 in a certain situation, the connection area 31 is used as the first combination feature. When torque is applied to the torque tool body 1, depending on the shape of the fastener head, the fastener head can be combined with the first combination feature, the second combination feature, or the third combination feature of a single combination feature, or be combined with a single combination All three combined features of the feature.

In some embodiments or applications of the torque tool body 1, when the supporting area 4 is combined with a male fastener, the recessed area 5 remains an empty space. In other words, the support area 4 of a plurality of pairs of coupling features 3 is combined with the fastener, and the recessed area 5 is not combined with the head of the fastener and remains as a gap, so it can be used by a plurality of pairs. The support area 4 of the bonded feature 3 applies more force to the surface of the fastener. Depending on the direction of rotation of the tool, even if any pair of bonding features 3 and the support area 4 of an adjacent pair of bonding features 3 are simultaneously bonded to the surface of the fastener, the torsional force of the first bonding feature 7 and the second bonding feature 8 is between Alternate intermittently within a closed shape. In other words, when the first engaging feature 7 engages with the fastener and applies torsion, the action of the second engaging feature 8 is suspended; when the second engaging feature 8 engages with the fastener and applies torsion, the action of the first engaging feature is suspended. In each of the plurality of pairs of bonding features 3, the bisector 6 divides the first bonding feature 7 and the second bonding feature 8 into two equal parts.

A top surface of the torque tool body 1 and a bottom surface of the attachment body 10 face each other through a plurality of paired coupling features 3 , wherein the top surface and the bottom surface can be designed as planes.

The lengths of the support region 4 and the recessed region 5, and the angle between the support region 4 and the recessed region 5, can be varied to produce a more sharply toothed configuration of bonding features. The first binding feature 7 can be any one of the plurality of pairs of binding features 3, and the second binding feature 8 is one of the related plurality of pairs of binding features 3 directly adjacent to the first binding feature 7 . More specifically, the recessed area 5 of the first bonding feature 7 is connected to the recessed area 5 of the second bonding feature 8 . As shown in Figures 1 to 7, the recessed area 5 of the first bonding feature 7 and the recessed area 5 of the second bonding feature 8 both face the rotation axis 2, and together form a shape with a radius, more preferably: A shape with a radius is a part circle or an ellipse, but can also be an angular shape such as a triangle, trapezoid, or square. However, the present invention does not limit that the formed shape must be one of the above-mentioned shapes. In some embodiments of the present invention, the recessed area 5 may be composed of several shapes if necessary in manufacturing, wherein these component shapes may be connected by a contour with a radius. The support area 4 of the first bonding feature 7 and the support area 4 of the second bonding feature 8 are opposite each other with the recessed area 5 of the first bonding feature 7 and the recessed area 5 of the second bonding feature 8 , And they all face the direction away from the rotation axis 2 . In other words, the recessed area 5 of the first bonding feature 7 and the recessed area 5 of the second bonding feature 8 are located between the support area 4 of the first bonding feature 7 and the support area 4 of the second bonding feature 8 .

Please refer to Figure 1 to Figure 9. In some embodiments of the invention, a first length ratio of the support region 4 of the first bonding feature 7 to the pocket region 5 of the first bonding feature 7 is 1:2. More preferably, the support area 4 of the first bonding feature 7 is a plane; however, the support area 4 of the first bonding feature 7 may also be an arcuate surface or a concave surface. In some embodiments of the present invention, a second length ratio of the support region 4 of the second bonding feature 8 to the cavity region 5 of the second bonding feature 8 is 1:2. More preferably, the support area 4 of the second bonding feature 8 is a plane; however, the support area 4 of the second bonding feature 8 may also be an arcuate surface or a concave surface.

Please refer to Figure 4. The connection area 31 is defined as the meeting point of the support area 4 and the pocket area 5 of the first bonding feature 7 and the meeting point of the support area 4 and the pocket area 5 of the second bonding feature 8 . In different embodiments of the present invention, depending on the user's choice, the connection area 31 can be a sharp point, or a rounded point (a curved area). More preferably, the connection area 31 is a protruding section and faces away from the rotation axis 2 . However, the connection area 31 can also be a flat section, or a concave section, and can also be connected to the support area 4 at an obtuse angle, as shown in FIG. 5 . The connection area 31 is a novel improvement of the present invention, which enables the roles of the support area 4 and the pocket area 5 to be reversed, and gives the user an additional interface. This additional engagement surface provides an area for the user to convert the tool to have a sharp attachment area 31 for greater grip. In other embodiments, a flat surface or a concave surface may provide a larger contact surface when torque is applied.

Furthermore, the present invention defines a first bisector angle 17 between the connection area 31 of the first bonding feature 7 and the bisector line 6 , as shown in FIG. 4 . In different embodiments of the present invention, the first bisecting angle 17 may be an acute angle, a right angle, or an obtuse angle.

Moreover, the present invention defines a second bisector angle 18 between the connection area 31 of the second bonding feature 8 and the bisector line 6 , as shown in FIG. 4 . In different embodiments of the present invention, the second bisecting angle 18 may be an acute angle, a right angle, or an obtuse angle.

An imaginary straight line is drawn between the connection region 31 of the first bonding feature 7 and the connection region 31 of the second bonding feature 8; due to the angular positions of the first bisecting angle 17 and the second bisecting angle 18, this The straight line is perpendicular to the bisector 6.

When a first imaginary line is parallel to the support area 4 of the first bonding feature 7 and intersects with the connection area 31 of the first bonding feature 7, and a second imaginary line is parallel to the support area 4 of the second bonding feature 8 and intersects with the first bonding feature 7 The connecting regions 31 of the two bonding features 8 intersect, and the first bisection angle 17 and the second bisection angle 18 combine to form an angle smaller than 180 degrees.

Furthermore, the support area 4 of the first bonding feature 7 and the support area 4 of the second bonding feature 8 are located away from each other. More specifically, the present invention further includes: a first geometric plane and a second geometric plane. The first geometric plane and the second geometric plane are at a distance from each other; the first geometric plane is parallel to the support area 4 of the first bonding feature 7 ; the second geometric plane is parallel to the support area 4 of the second bonding feature 8 . In other words, in the present invention, the first geometric plane and the second geometric plane are not coplanar. More specifically, the support area 4 of the first bonding feature 7 and the support area 4 of the second bonding feature 8 are not aligned with each other. More preferably, in the female and male versions of the invention, a geometric plane of the support area 4 is not aligned with the support surface of the fastener.

Please refer to Figure 6. A radial distance 35 of the interface point 34 is 4 to 12 times the first length 36 of the support area 4 of the first bonding feature 7 or the second length 37 of the support area 4 of the second bonding feature 8 . Please refer to Figure 7. Furthermore, the radial distance 35 is greater than a radial distance 38 of the connecting region 31 connected to the support region 4 of the first bonding feature 7 and a radial distance 38 of the connecting region 31 connected to the supporting region 4 of the second bonding feature 8. Distance 39. Furthermore, the radial distance 38 is greater than a radial distance of the connecting region 31 connected to the pocket region 5 of the first bonding feature 7. From 40; the radial distance 39 is greater than a radial distance 41 of the connection zone 31 of the cavity zone 5 connected to the second bonding feature 8, as shown in FIG.

Please refer to Figure 3 and Figure 8 . More preferably, the number of pairs of bonding features 3 that contact the head of the fastener is six; six pairs of bonding features 3 are equivalent to twelve individual bonding features. A first angle 14 of the first bonding feature 7 is 30 degrees; a second angle 15 of the second bonding feature 8 is 30 degrees. Furthermore, a third angle 16 between two pairs of engaging features 3 ranges from 121 degrees to 179 degrees, as shown in FIG. 3 . The angular conditions between pairs of bonding features 3 will vary from embodiment to embodiment. In some embodiments of the invention, the third angle 16 is 130 degrees. In some embodiments of the invention, the third angle 16 is 135 degrees. In some embodiments of the invention, the third angle 16 is 145 degrees. In some embodiments of the invention, the third angle 16 is 150 degrees.

In some embodiments of the invention, pairs of engagement features 3 taper around the axis of rotation 2 . In other words, the outer diameter of the plurality of pairs of coupling features 3 on the top surface of the torque tool body 1 is smaller than the outer diameter of the plurality of pairs of coupling features 3 on the attachment body 10 . Moreover, from the top surface of the torque tool body 1 to the attachment body 10 , the recessed area 5 of the first coupling feature 7 and the recessed area 5 of the second coupling feature 8 gradually become narrower and shallower. In some embodiments of the present invention, the recessed area 5 of the first bonding feature 7 and the recessed area 5 of the second bonding feature 8 together define a circular profile. However, the present invention is not limited by these embodiments, and the cavity area 5 of the first bonding feature 7 and the cavity area 5 of the second bonding feature 8 can also define other geometric shapes. For example, the recessed area 5 of the first bonding feature 7 and the recessed area 5 of the second bonding feature 8 may also define a triangular profile within the associated support area 4 .

To remove damaged/worn fasteners using the present invention, the torque tool body 1 is positioned around the damaged/worn fastener such that a significant portion of the plurality of pairs of engagement features 3 is positioned around the fastener head, Or be housed within the head of the fastener. The user can rotate and remove the damaged/worn fasteners only by applying torque to the torque tool body 1 . When torque is applied to the torque tool body 1, the pairs of engagement features 3 bite into the side of the fastener head and rotate the damaged/worn fastener. Book The invention is designed to be partially or fully bonded to damaged fastener heads. The present invention overcomes the problem of slippage of the head of the fastener by using a plurality of paired coupling features 3 .

The present invention can use the recessed area 5 of the first engaging feature 7 and the recessed area 5 of the second engaging feature 8 to actuate a fastener having an associated blade design, such as a Torx screw. The present invention can use the support area 4 of the first engagement feature 7 and the support area 4 of the second engagement feature 8 to actuate the outer support surface of the socket fastener.

It should be understood that in other embodiments of the invention, all elements of the invention may be reversed to produce a negative version of the invention. In other words, the negative version of the present invention has all the features, functions, and elements of the present invention, but implemented as a negative embodiment. The engaging features of the female embodiment may engage the sides or sidewalls of a male fastener. In the male version of the drill tool, the protrusion is directed away from the axis of rotation 2 . However, in the female version of the drill tool, the protrusion is oriented in a direction close to the axis of rotation 2 . In more detail, in the positive embodiment, the supporting area 4 and the connecting area 31 are facing away from the direction of the rotating shaft 2, as shown in Figures 1 to 7; in the negative embodiment, the supporting area 4 and the connecting area 31 are Towards the direction close to the axis of rotation 2.

In the present invention, the lengths of the support region 4 and the cavity region 5 , and the angle between the support region 4 and the cavity region 5 can be varied to produce sharper tooth-like structures in the plurality of pairs of bonding features 3 . In more detail, the length of the support region 4 of the first bonding feature 7 may be greater than the length of the support region 4 of the second bonding feature 8, or the length of the support region 4 of the second bonding feature 8 may be greater than that of the first bonding feature 7. The length of the support zone 4 ; thereby, a sharper and more aggressive bite, or a blunter and less aggressive bite can be produced, according to the user's wishes. The first binding feature 7 can be any one of the plurality of pairs of binding features 3, and the second binding feature 8 is one of the related plurality of pairs of binding features 3 directly adjacent to the first binding feature 7 . More specifically, the recessed area 5 of the first bonding feature 7 is connected to the recessed area 5 of the second bonding feature 8 . The connection area 31 is defined as the meeting point of the support area 4 and the pocket area 5 of the first bonding feature 7 and the meeting point of the support area 4 and the pocket area 5 of the second bonding feature 8 . Figure 8 and Figure 9 As shown, the junction point 34 can be considered as the contact point of two paired bonding features 3 . In other words, any pair of bonding features 32 among the plurality of pairs of bonding features 3 , and the adjacent pair of bonding features 33 of the pair of bonding features 32 are connected to each other via the junction 34 . In various embodiments of the invention, the junction point 34 may be a sharp point, or an arcuate region with a small diameter. In some embodiments, the junction point 34 comprises a third segment; the third segment is preferably a linear region; the third segment is connected to any pair of bonding features 3 of the support area 4 and its adjacent between the paired bonding features 3 of the support area 4 . A radial distance 35 of the junction 34 is 4 to 12 times the first length 36 of the support region 4 of the first bonding feature 7 or the second length 37 of the support region 4 of the second bonding feature 8, as shown in FIG. 8 . Furthermore, the radial distance 35 is less than a radial distance 42 of the connection region 31 connected to the support region 4 of the first bonding feature 7 and/or one of the connection regions 31 connected to the support region 4 of the second bonding feature 8 Radial distance 43, as shown in FIG. 8 . The connection area 31 is defined as the meeting point of the support area 4 and the pocket area 5 of the first bonding feature 7 and the meeting point of the support area 4 and the pocket area 5 of the second bonding feature 8 . In different embodiments of the present invention, depending on the user's choice, the connection area 31 can be a sharp point, or a rounded point (a curved area). In some embodiments of the present invention, the support region 4, the connection region 31, and the first portion of the cavity region 5 are continuous and collinear. More preferably, the connection area 31 is a protruding section and faces the direction of the rotation axis 2 . However, the connection area 31 can also be a flat section, or a concave section, and can also be connected to the support area 4 at an obtuse angle, as shown in FIG. 8 . The connection area 31 is a novel improvement of the present invention, which enables the roles of the support area 4 and the pocket area 5 to be reversed, and gives the user an additional interface. This additional engagement surface provides an area for the user to convert the tool to have a sharp attachment area 31 for greater grip. In other embodiments, a flat surface or a concave surface may provide a larger contact surface when torque is applied.

As shown in Figures 8 and 9, the recessed area 5 of the first bonding feature 7 and the recessed area 5 of the second bonding feature 8 face away from the direction of the rotation axis 2, and jointly form a shape with a radius, which is more preferable Yes: The shape with a radius is a part circle or an ellipse, but can also be a The shape of the angle, for example: triangle, trapezoid, or square. However, the present invention does not limit that the formed shape must be one of the above-mentioned shapes. In some embodiments of the present invention, the recessed area 5 may be composed of several shapes if necessary in manufacturing, wherein these component shapes may be connected by a contour with a radius. The support area 4 of the first bonding feature 7 and the support area 4 of the second bonding feature 8 are opposite to each other through the recessed area 5 of the first bonding feature 7 and the recessed area 5 of the second bonding feature 8, and both face Direction of rotation axis 2. In other words, the recessed area 5 of the first bonding feature 7 and the recessed area 5 of the second bonding feature 8 are located between the support area 4 of the first bonding feature 7 and the support area 4 of the second bonding feature 8 . In some embodiments of the invention, pairs of engagement features 3 taper around the axis of rotation 2 . In other words, the outer diameter of the plurality of pairs of coupling features 3 on the top surface of the torque tool body 1 is larger than the outer diameter of the plurality of pairs of coupling features 3 on the attachment body 10 . Moreover, the supporting area 4 of the first bonding feature 7 and the supporting area 4 of the second bonding feature 8 are located away from each other, as shown in FIGS. 8 and 9 . More specifically, the present invention further includes: a first geometric plane and a second geometric plane. The first geometric plane and the second geometric plane are at a distance from each other; the first geometric plane is parallel to the support area 4 of the first bonding feature 7 ; the second geometric plane is parallel to the support area 4 of the second bonding feature 8 . In other words, in the present invention, the first geometric plane and the second geometric plane are not coplanar. More specifically, the support area 4 of the first bonding feature 7 and the support area 4 of the second bonding feature 8 are not aligned with each other.

It should be understood that all elements of the positive embodiment in FIGS. 1 to 7 are also applicable to the negative embodiment in FIGS. The positive version or the negative version of the present invention, the elements described in this specification all belong to the whole part of the invention. The above description is also vice versa, that is: all elements of the female embodiment of FIGS. 8 and 9 also apply to the male embodiment of FIGS. 1 to 7 .

Please refer to Figure 1 to Figure 9. In some embodiments of the present invention, the supporting area 4 further includes: an intermittent side wall. The intermittent side walls are disposed between the side walls of the plurality of pairs of bonding features 3 . Intermittent sidewalls may alternate between pairs of binding features 3, or with respect to pairs of Combining each of the 3 features. The plurality of intermittent side walls may be a plurality of continuous intermittent side walls. In other words, more than one intermittent sidewall can be placed on pairs of bonding features 3 in succession. More preferably: the surface of the intermittent side wall is a plane.

The present invention has been described above through the embodiments, but it should be understood that: these embodiments are only used to illustrate the present invention, not to limit the scope of the present invention. Any modifications or changes that do not depart from the spirit of the present invention will still be included within the scope of the present invention.

2: Rotation axis

3: Pairwise binding features

4: Support area

5: Dimple area

7: The first binding feature

8: Second binding feature

14: first angle

15: Second angle

16: Third Angle

31: Connection area

32: Arbitrary pairwise combination of features

33: Adjacent paired binding features

34: Junction point

Claims (20)

A non-slip fastener removal tool comprising: a torque tool body; a plurality of pairs of combined features; and At least one junction point where Each of the plurality of pairs of combined features further includes: a first combined feature, and a second combined feature; The cross-section of each of the first bonding feature and the second bonding feature further includes: a support region, a pocket region, and a connecting region; the plurality of pairs of bonding features distributed around a rotational axis of the torque tool body; The supporting area and the cavity area are connected to each other by the connecting area; the recessed region of the first bonding feature is connected to the recessed region of the second bonding feature; the recessed region of the first bonding feature and the recessed region of the second bonding feature are oriented toward the axis of rotation; the support region of the first bonding feature and the support region of the second bonding feature are opposite each other across the recessed region of the first bonding feature and the recessed region of the second bonding feature; Any pair of combined features among the plurality of pairs of combined features, and an adjacent pair of combined features of the paired combined features are connected to each other via the junction point. The non-slip fastener removal tool as described in item 1 of the patent claims, wherein a first angle of the first combination feature is 30 degrees; a second angle of the second combination feature is 30 degrees. The non-slip fastener removal tool described in claim 1, wherein a third angle between the two paired coupling features ranges from 121 degrees to 179 degrees. The tool for removing anti-slip fasteners as described in item 3 of the scope of the patent application, wherein the third angle is 130 degrees. The tool for removing anti-slip fasteners as described in item 3 of the scope of the patent application, wherein the third angle is 135 degrees. The tool for removing anti-slip fasteners as described in item 3 of the scope of the patent application, wherein the third angle is 145 degrees. The tool for removing anti-slip fasteners as described in item 3 of the scope of the patent application, wherein the third angle is 150 degrees. The non-slip fastener removal tool described in item 1 of the scope of the patent application, wherein the handover point is a sharp point. The non-slip fastener removal tool described in item 1 of the scope of the patent application, wherein the junction point is an arc-shaped area. The non-slip fastener removal tool as described in item 1 of the patent claims, wherein the connection area is a protruding section and faces away from the rotation axis. The tool for removing anti-slip fasteners as described in item 1 of the patent claims, wherein the torque tool body extends outward from the rotating shaft to the plurality of paired coupling features. The non-slip fastener removing tool as described in claim 1, wherein a first length ratio of the support area of the first coupling feature and the recess area of the first coupling feature is 1:2. The tool for removing anti-slip fasteners as described in claim 11, wherein a second length ratio of the support area of the second coupling feature to the recess area of the second coupling feature is 1:2. In the non-slip fastener removal tool described in claim 1, a radial distance of the intersection point is 4 times to 12 times a first length of the supporting area of the first bonding feature. The non-slip fastener removal tool as described in claim 1, wherein a radial distance of the intersection point is 4 times to 12 times a second length of the supporting area of the second bonding feature. The non-slip fastener removal tool as described in claim 1, wherein a radial distance of the intersection point is greater than a radial distance of the connection area of the first bonding feature. The non-slip fastener removing tool as described in claim 1, wherein a radial distance of the intersection point is greater than a radial distance of the connection area of the second bonding feature. The tool for removing non-slip fasteners as described in claim 1, wherein the support area of the first coupling feature and the support area of the second coupling feature are located away from each other. The non-slip fastener removal tool described in item 1 of the scope of the patent application further includes: an attached body, in which The center of the attachment body is located on the rotation axis, and the attachment body extends along the rotation axis; The attachment body is connected to the torque tool body. The anti-slip fastener removal tool described in item 19 of the scope of the patent application further includes: a binding hole, where The coupling hole penetrates the attachment body along the rotation axis and is opposite to the torque tool body; The torque tool body extends inwardly from an outer wall of the torque tool body to the plurality of pairs of engagement features.

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