TW201829135A - Spherical Anti-Slip Fastener Remover - Google Patents

Abstract

A screw bit body which allows for efficient torque force application onto a socket fastener from a variety of angles. The screw bit body includes a plurality of laterally-bracing sidewalls, a first base, and a second base. The laterally-bracing sidewalls are radially distributed about a rotation axis of the screw bit body with each further including a first lateral edge, a second lateral edge, a concave surface, a convex surface, and an engagement cavity. The convex surface is adjacent to the first base and the concave surface is adjacent to the second base to create a ball-like shape. The engagement cavity creates a gripping point to prevent slippage in between the screw bit body and the socket fastener. The engagement cavity traverses normal and into the concave surface and the convex surface. Additionally, the engagement cavity traverses into the screw bit body from the first base to the second base.

Description

 Spherical non-slip tool head  

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a tool for locking or releasing fasteners, such as bolts and nuts, and more particularly to a spherical anti-slip tool head for releasing or locking bolts, nuts and the like. .

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 screwdriver, 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 the torque tool slides over the head when the fasteners are loosened or locked. This problem is often caused by worn fasteners or tools, rust, excessive tightening, or breakage of the fastener head.

The present invention is a design of a torsion driver head that avoids slippage. The present invention uses a beveled design that snaps into the head of the fastener and allows torque to be applied to the fastener to lock or loosen the fastener. Moreover, the present invention is more a ball screw driver head that allows the torsion tool to have an angle with respect to the axis of rotation of the fastener. This allows the locking or loosening of the fastener to work in an unreachable environment without slipping.

The present invention relates to a fitting for a torque tool, and more particularly to a multi-clamp point sleeve driver head which is a screwdriver or screw drive head. The present invention can apply greater torque to the socket fastener than other similarly sized conventional screwdriver bits without damaging the socket fastener head or the screwdriver head tool. The efficacy of the present invention is achieved by an engagement structure having a plurality of features that enable the engagement structure to effectively grip the head of the socket fastener. The present invention is a sleeve driver head that is compatible with a variety of torsion tools including: conventional electric drills, screwdrivers that can accommodate a screwdriver head, socket wrenches, sleeve drivers, but these torque tools are not limited It is the above torque tool. The present invention is embodied in a spherical sleeve driver head that can be coupled to the socket fastener at an angle and that can operate in locations that are not easily accessible.

1‧‧‧ Screwdriver head body

2‧‧‧ side wall

3‧‧‧First side edge

4‧‧‧second side edge

5‧‧‧Outstanding face

6‧‧‧ concave surface

7‧‧‧ Combination

8‧‧‧ first base

9‧‧‧second base

10‧‧‧Rotary axis

11‧‧‧First screwdriver head body

12‧‧‧Second screwdriver head body

13‧‧‧Intermittent side walls

14‧‧‧ Attached structure body

15‧‧‧Combination hole

1 is a perspective view of an embodiment of the present invention.

Figure 2 is a perspective view of another embodiment of the present invention.

Figure 3 is a side elevational view of another embodiment of the present invention.

Figure 4 is a cross-sectional view taken along line A-A of Figure 3.

Figure 5 is a cross-sectional view taken along line B-B of Figure 4.

Figure 6 is a bottom perspective view of still another embodiment of the present invention.

Figure 7 is a perspective view of still another embodiment of the present invention.

The illustrations attached to the present specification are intended to be illustrative of some embodiments of the invention and are not intended to limit the scope of the invention.

Please refer to FIG. 1, which is the simplest embodiment of the present invention. In this embodiment, the invention comprises: at least one screwdriver bit body 1. The screwdriver bit body 1 is a shank that can be combined with a socket fastener, such as a socket screw and a socket screw, to quickly apply a torsional force to the socket fastener. The screwdriver head body 1 further includes: a plurality of side support walls 2, a first base surface 8, and a second base surface 9. In general, the screwdriver bit body 1 is a spherical prism made of high-strength metal. A plurality of side struts 2 are coupled to the socket fasteners to effectively transfer torque from the torque tool to the socket fastener. The first base surface 8 and the second base surface 9 are opposed to each other via a plurality of side support walls 2, and the first base surface 8 and the second base surface 9 are perpendicular to the plurality of side support walls 2 to form a prismatic screwdriver. Head body 1.

Referring to FIGS. 1 and 4 , each side wall 2 further includes a first side edge 3 , a second side edge 4 , a protruding surface 5 , a concave surface 6 , and a coupling hole 7 . A plurality of side support walls 2 radially surround a rotating shaft 10 of the screwdriver bit body 1 to produce a shape complementary to the socket fastener cross section. The number of side stay walls 2 varies with the shape of the socket fastener to complement the shape of the socket fastener. In one embodiment of the invention, the number of side stay walls 2 is six, and the cross-section of the head body 1 that produces the screwdriver is a hexagon. In another embodiment of the invention, the number of side stay walls 2 is four, and the cross-section of the head body 1 that produces the screwdriver is a quadrangle.

The protruding surface 5 and the concave surface 6 form a support surface. The support surface abuts against the socket fastener, in particular the side wall of the socket fastener head. The support surface formed by the protruding surface 5 and the concave surface 6 is a curved surface, and thus the plurality of side support walls 2 can form a spherical shape. The protruding surface 5 is adjacent to the first base surface 8, and the plurality of protruding surfaces 5 of the plurality of side support walls 2 are formed as a spherical body. The concave surface 6 is adjacent to the protruding surface 5 and opposite to the first base surface 8; the plurality of concave surfaces 6 of the plurality of side wall 2 also participate in the generation of a sphere. The plurality of recessed faces 6 also provide a margin for the screwdriver bit body 1 to be coupled to the socket fastener at an angle. The projecting surface 5 and the recessed surface 6 are distributed along the rotational axis 10 of the screwdriver bit body 1 such that the spherical shape is located at the end of the screwdriver bit body 1. In a preferred embodiment of the invention, the curvature, length, and height of the projection surface 5 and the concave surface 6 are the same. The first side edge 3 and the second side edge 4 are opposed to each other across the protruding surface 5 and the concave surface 6, that is, the supporting surface. The first side edge 3 and the second side edge 4 of the plurality of side stay walls 2 constitute the corners of the screwdriver bit body 1 as seen from the top or bottom view. The bonding pocket 7 forms an additional clamping tooth for engagement with the sidewall of the socket fastener. The bonding hole 7 penetrates vertically into the protruding surface 5 and the concave surface 6. The coupling pocket 7 emerges from the first base surface 8 of the screwdriver bit body 1 to the second base surface 9 to form additional clamping teeth along the sphere. Regardless of the angle between the screwdriver bit body 1 and the socket fastener, such additional clamping teeth can always be combined with the socket fastener.

Please refer to FIG. 4 and FIG. 5. The additional nip point of each of the side struts 2 is created by the splicing hole 7 and the adjacent side edge, that is, the first side edge 3. The distance between the bonding hole 7 and the first side edge 3 determines the nip point of the additional clamping teeth and is adjusted with the size and design of the fastener. In one embodiment, the bonding pockets 7 taper from the first base surface 8 toward the second base surface 9 to reduce the number of sharp edges, thereby preventing the user from accidentally pressing and cutting. In a preferred embodiment, the coupling pocket 7 has a triangular cross section. The triangular profile ensures that the additional gripping teeth are sharp enough and does not reduce the integrity of the overall structure of the screwdriver bit body 1. In other embodiments of the invention, the coupling pocket 7 can have other shapes of cross-section. Other shapes of profiles include, but are not limited to, semi-square, semi-rectangular, and semi-elliptical profiles.

The invention can be implemented by a fastener locking tool or fastener release tool. The present invention generally applies a torque in a clockwise direction and a counterclockwise direction. In particular, the invention may be a clockwise screwdriver bit or a counterclockwise screwdriver bit. In the clockwise version of the screwdriver bit, the coupling hole 7 is located beside the first side edge 3, so that when the screwdriver bit body 1 is rotated in the clockwise direction, the additional clamping teeth can be engaged with the socket fastener The side walls are joined to lock the socket fasteners. In the counterclockwise version of the screwdriver bit, the coupling hole 7 is located next to the second side edge 4, so that when the screwdriver bit body 1 is rotated in the counterclockwise direction, the additional clamping teeth can be engaged with the socket fastener The side walls are joined to release the socket fastener. In general, the clockwise screwdriver bit version and the counterclockwise screwdriver bit version are mirror images of each other.

Referring to FIG. 7, in an embodiment, the present invention further includes a plurality of intermittent side walls 13. Each of the intermittent side walls 13 is a flat surface that incorporates a socket fastener that functions like a conventional screwdriver bit design. The plurality of intermittent side walls 13 radially surround the rotating shaft 10 of the screwdriver bit body 1. A plurality of intermittent side walls 13 are interspersed between the plurality of side walls 2. Thus, a plurality of intermittent side walls 13 and a plurality of side support walls 2 are alternately distributed in the radial direction of the screwdriver bit body 1.

The present invention further includes an attachment structure that allows an external torsion tool to be attached to the screwdriver head body 1 and transmits torque to the socket fastener via the screwdriver bit body 1. Please refer to Figure 1. The invention further includes an attachment construction body 14. The center of the attachment structure body 14 is located on the rotating shaft 10 and is distributed along the rotating shaft 10. Therefore, the rotating shaft of the attached structural body 14 completely overlaps with the rotating shaft 10 of the screwdriver bit body 1. The attachment structure body 14 is coupled to the second base surface 9. The preferred cross-sectional shape of the attachment structure body 14 is hexagonal for mounting to a negative attachment structure (attachment hole) of the external torsion tool, including but not limited to: electric drill, torsion wrench, pneumatic drill, and sleeve Screwdriver.

Referring to FIG. 6, in an embodiment, the present invention further includes a coupling hole 15. The coupling aperture 15 allows the invention to be attached to a positive attachment configuration of an external torsion tool, such as a socket wrench or a screwdriver. The coupling hole 15 penetrates the attachment configuration body 14 along the rotation axis from the direction relative to the screwdriver bit body 1. The shape of the coupling hole 15 can accept the positive attachment configuration of the socket wrench. The shape of the coupling hole 15 is preferably square because most of the socket wrenches use a square attachment configuration. In this embodiment, the shape of the attachment structure body 14 is preferably cylindrical. In other embodiments, the shape of the coupling aperture 15 and the attachment configuration body 14 can vary with the design and attachment method of the torque tool.

Referring to Figures 2 and 3, in one embodiment, the present invention is fabricated as a double-headed screwdriver bit that provides both a clockwise screwdriver head body 1 and a counterclockwise screwdriver head body 1. In this embodiment, the screwdriver body 1 includes a first screwdriver body 11 and a second screwdriver body 12. The cross-section of the attachment structure body 14 is preferably hexagonal. The center of the attachment structure body 14 is located at the rotation axis 10 of the first screwdriver bit body 11, and is distributed along the rotation axis 10 of the first screwdriver bit body 11. Therefore, the rotation axis of the attachment structure body 14 completely overlaps with the rotation shaft 10 of the first screwdriver bit body 11. The attachment structure body 14 is coupled to the second base surface 9 of the first screwdriver bit body 11. The second screwdriver bit body 12 is shared with the first screwdriver bit body 11 and the shared attachment structure body 14, and the second screwdriver bit body 12 is concentric with the first screwdriver bit body 11. Similar to the conventional double-head screwdriver head design, the second screwdriver bit body 12 is coupled to the attachment construction body 14 and relative to the first screwdriver bit body 11. Similar to the first screwdriver bit body 11, the attachment structure body 14 is coupled to the second base surface 9 of the second screwdriver bit body 12. This embodiment forms the screwdriver head body 1 at either end of the attachment construction body 14. The first screwdriver bit body 11 is for releasing the socket fastener, that is, the first screwdriver bit body 11 is a counterclockwise version of the screwdriver head body. The second screwdriver bit body 12 is used to lock the socket fastener, that is, the second screwdriver head body 12 is a clockwise version of the screwdriver head body. Please refer to Figure 4. For each side wall 2 of the first screwdriver bit body 11, the coupling hole 7 of the first screwdriver bit body 11 is adjacent to the first side edge 3 of the first screwdriver bit body 11. The first screwdriver bit body 11 is designed to release the socket fastener, that is, the first screwdriver bit body 11 is a counterclockwise version of the screwdriver head body. Please refer to Figure 5. For each side wall 2 of the second screwdriver bit body 12, the coupling hole 7 of the second screwdriver bit body 12 is adjacent to the second side edge 4 of the second screwdriver bit body 12.

The present invention has been described by way of example, and it should be understood that these embodiments are not intended to limit the scope of the invention. Any modifications or variations that do not depart from the spirit of the invention are intended to be included within the scope of the invention.

Claims (7)

 A spherical anti-slip tool head comprising: a screwdriver bit body, wherein the screwdriver head body further comprises: a plurality of side support walls, a first base surface, and a second base surface; the plurality of side supports Each of the walls further includes: a first side edge, a second side edge, a protruding surface, a concave surface, and a coupling hole; the plurality of side walls radially surround a portion of the screwdriver head body a rotating shaft; the protruding surface is adjacent to the first base surface; the concave surface is adjacent to the protruding surface and opposite to the first base surface; the protruding surface and the concave surface are distributed along the rotating axis of the screwdriver head body The first side edge and the second side edge are opposite to each other across the protruding surface and the concave surface; the coupling hole vertically penetrates the protruding surface and the concave surface; the coupling hole is from the screwdriver head body The first base surface starts to reach the second base surface.    A spherical anti-slip tool head according to claim 1, further comprising: an attachment structure body; and a coupling hole, wherein a center of the attachment structure body is located at the rotation axis, and the rotation axis is rotated Distributing; the coupling hole penetrates the attachment structure body along the rotation axis from a direction relative to the screwdriver head body.    The spherical anti-slip tool head according to claim 1, further comprising: an attachment structure body, wherein a center of the attachment structure body is located on the rotation axis, and is distributed along the rotation axis; The mounting body is coupled to the second base surface.    The spherical anti-slip tool head according to claim 1, further comprising: an attachment structure body, wherein the screwdriver head body further comprises: a first screwdriver bit body and a second screwdriver head body a center of the attachment structure body is located at the rotation axis of the first screwdriver bit body, and is distributed along the rotation axis of the first screwdriver bit body; the attachment structure body is coupled to the first screwdriver bit The second base of the body; the second screwdriver body is concentric with the first screwdriver body; the second screwdriver body is coupled to the attachment structure body and relative to the first screwdriver; The attachment structure body is coupled to the second base surface of the second screwdriver bit body; the coupling hole of the first screwdriver bit body is adjacent to the first side edge; the combination of the second screwdriver driver body The hole is adjacent to the second side edge.    The spherical anti-slip tool head according to claim 1, wherein the screwdriver head body further comprises: a plurality of intermittent side walls; the plurality of intermittent side walls radially surround the rotating shaft; A side wall is interspersed between the plurality of side walls.    The spherical anti-slip tool head according to claim 1, wherein the bonding hole tapers from the first base surface toward the second base surface.    The spherical anti-slip tool head according to claim 1, wherein the coupling hole has a triangular cross section.