TW201838776A - Multi-Directional Driver Bit - Google Patents

Abstract

A screw bit body which allows for efficient torque force application onto a socket fastener. 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 bracing surface, and an engagement cavity. 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. The engagement cavity includes an angled driving portion and a concave portion. The angled driving portion is positioned adjacent to the first lateral edge with the concave portion being positioned opposite to the first lateral edge, across the angled driving portion.

Description

 Multidirectional drive head  

The present invention relates to a tool for slackening and locking fasteners (such as screws and nuts), and more particularly to a non-slip multi-directional drive head capable of preventing a bit damage fastener during removal or locking of a fastener Or slip off the fastener.

Hex bolts, nuts, screws, and other similar threaded fasteners are used to secure a plurality of parts together by mating with complementary threads (usually the so-called female threads). The structure of such fasteners generally includes a cylindrical shaft portion having an external thread and a head portion at the end of the shaft portion. The external thread is combined with a complementary female thread to secure the fastener and simultaneously secure the associated part, wherein the female thread is typically formed by tapping into a hole or nut. The fastener is rotated or driven into the female thread by receiving an external torsion from its head. The shape of the head is made such that an external tool, such as a wrench, applies torque to the fastener to rotate the fastener to some extent to the complementary female thread. Such fasteners are simple, inexpensive, and very effective, and are therefore commonly used in modern society.

One of the common problems with using such fasteners is that the tool often slides over the head, regardless of whether the fastener is male or female. The reasons may be: tool or fastener wear, tool or fastener rust, excessive tightening of the fastener, damage to the head of the fastener.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a multi-directional drive head that allows torque to be efficiently applied to a socket fastener. The multidirectional drive head of the present invention includes at least one screwdriver bit body. The screwdriver head body further comprises: a plurality of side support walls, a first base surface, and a second base surface. A plurality of side struts radially surround a rotating shaft of the screwdriver head body. Each of the plurality of side support walls further includes: a first side edge, a second side edge, a side surface, and at least one coupling hole. The nip point is created by the joint hole to prevent slippage between the screwdriver bit body and the socket fastener. The binding hole further comprises: a corner driving portion and a concave portion. The corner drive portion is adjacent to the first side edge; the recess portion is spaced relative to the first side edge via the corner drive portion.

The present invention is a driver head design that substantially eliminates slippage. The design of the present invention contains several parts. The integral function of these portions can engage the head of the fastener, thereby effectively transmitting torque between the bit and the head of the fastener. Conventional boltdrivers may use tools and drill holes that were not needed. The present invention avoids these problems.

With the development of electric screwdrivers and electric drills, it has been common to use a power tool to apply torque to remove the fastener. The present invention provides a double-headed screwdriver bit that can apply torque to the fastener clockwise or counterclockwise to lock or loosen the fastener.

In the present invention, most of the driver's heads have a standard quarter-inch hexagonal gripping end, but may be not limited to a square, hexagonal, or star-shaped gripping end.

1‧‧‧ Screwdriver head body

2‧‧‧ side wall

3‧‧‧First side edge

4‧‧‧second side edge

5‧‧‧ side

6‧‧‧ Combination hole

7‧‧‧ Corner Drive Department

8‧‧‧ first side

9‧‧‧Second side

10‧‧‧ recessed

11‧‧‧ first base

12‧‧‧ second base

13‧‧‧Rotary axis

14‧‧‧ Attached structure body

15‧‧‧Central longitudinal section

16‧‧‧Combination hole

17‧‧‧First screwdriver head body

18‧‧‧Second screwdriver head body

19‧‧‧Intermittent side walls

BRIEF DESCRIPTION OF THE DRAWINGS Figure 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 3.

Figure 6 is a partial enlarged view of the elliptical region of Figure 5.

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

Figure 8 is a perspective view of a further embodiment of the present invention.

It is to be understood that the illustrations of the invention are intended to be illustrative of the invention and are not intended to limit the scope of the invention.

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.

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 11 and a second base surface 12. 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 11 and the second base surface 12 are opposed to each other via a plurality of side support walls 2, and the first base surface 11 and the second base surface 12 are perpendicular to the plurality of side support walls 2 to form a prismatic screwdriver. Head body 1.

Please refer to FIG. 1 and FIG. Each of the side support walls 2 further comprises: a first side edge 3, a second side edge 4, a side surface 5 and at least one coupling hole 6. A plurality of side stay walls 2 radially surround a rotating shaft 13 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 side 5 abuts against the socket fastener, in particular the side wall of the socket fastener head. The first side edge 3 and the second side edge 4 face each other across the side surface 5. The first side edge 3 and the second side edge 4 constitute the corners of the screwdriver bit body 1 as seen from the top or bottom view. The joint pocket 6 is recessed into the side 5, thus creating additional nip points or gripping teeth on the side 5. Additional nip points are created in the bonding pockets 6 and adjacent side edges, wherein the adjacent side edges may be the first side edge 3 or the second side edge 4, especially the side edge closest to the bonding pocket 6. The coupling pocket 6 extends from the first base surface 11 towards the second base surface 12 on the screwdriver bit body 1. Thus, the additional nip point extends in the length direction of the screwdriver bit body 1, so that the maximum force of the clamping force can be obtained between the screwdriver bit body 1 and the socket fastener. In one embodiment, the coupling pocket 6 tapers from the first base surface 11 toward the second base surface 12. Please refer to Figure 6. The coupling hole 6 further comprises: a corner driving portion 7 and a concave portion 10. The corner drive portion 7 is a straight line that together with the adjacent side edges creates additional nip points or gripping teeth that directly contact the inner side wall of the socket fastener. In a preferred embodiment, the corner drive portion 7 is adjacent to the first side edge 3. The additional clamping teeth bite into the inner side wall of the socket fastener so that the torque can be effectively transmitted to the socket fastener. The recess 10 is a notch having a semi-circular cross-section which provides a clearance to the inner side wall of the socket fastener, thus ensuring that the additional clamping tooth is the only part of the screwdriver head body 1 that bites the socket fastener. . To this end, the recess 10 is adjacent to the corner drive 7 and is opposite the first side edge 3. The recess 10 can have a cross section of other shapes. Other shapes of profiles include, but are not limited to, semi-square, semi-rectangular, and semi-elliptical profiles. Please refer to FIG. 6 and FIG. In a preferred embodiment, a first side edge 8 of the corner drive portion 7 overlaps the first side edge 3 to create a sharp corner. Further, a second side 9 of the corner drive portion 7 is adjacent to the recess 10. The portion between the side 5 and the recess 10 serves as a pivot point that determines when additional gripping teeth bite the socket fastener. When the inner side wall slides over the intersection of the side surface 5 and the recessed portion 10, that is, when the corner drive portion 7 bites the inner side wall of the socket fastener.

The invention can be used as a vertical screwdriver head with additional clamping force. When the additional gripping teeth bite into the inner side wall of the socket fastener, the present invention does not slip when rotated. Moreover, when the invention is rotated in the reverse direction, the side 5 can provide sufficient biting force to rotate the socket fastener. Therefore, the present invention is a multi-directional screwdriver head.

Please refer to Figure 8. In one embodiment, the invention further includes a plurality of intermittent side walls 19. Each of the intermittent side walls 19 is a flat surface that incorporates a socket fastener that functions like a conventional screwdriver bit design. The plurality of intermittent side walls 19 radially surround the rotating shaft 13 of the screwdriver bit body 1. A plurality of intermittent side walls 19 are interspersed between the plurality of side walls 2. Thus, a plurality of intermittent side walls 19 and a plurality of side support walls 2 are alternately distributed in the radial direction of the screwdriver bit body 1 and surround the rotating shaft 13 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 attached structural body 14 is located on the rotating shaft 13 and is distributed along the rotating shaft 13. Therefore, the rotation axis of the attachment structure body 14 completely overlaps with the rotation shaft 13 of the screwdriver bit body 1. The attachment structure body 14 is coupled to the second base surface 12. The preferred cross-sectional shape of the attachment structure body 14 is hexagonal for mounting to the negative attachment structure (attachment hole) of the external torque tool, and the torque tool may be, but not limited to, an electric drill, a torsion wrench, a pneumatic drill, and a sleeve. A screwdriver or other torque tool.

Please refer to Figure 7. In one embodiment, the invention further includes a coupling aperture 16. The coupling aperture 16 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 16 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 16 can accept a positive attachment configuration of the socket wrench. The shape of the coupling aperture 16 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 bonding aperture 16 and the attachment structure body 14 can vary with the design and attachment of the torque tool.

Please refer to FIG. 2 and FIG. 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 17 and a second screwdriver body 18. The cross-section of the attachment structure body 14 is preferably hexagonal. The center of the attachment structure body 14 is located on the rotation shaft 13 of the first screwdriver bit body 17, and is distributed along the rotation axis 13 of the first screwdriver bit body 17. Therefore, the rotation axis of the attachment structure body 14 completely overlaps with the rotation shaft 13 of the first screwdriver bit body 17. The attachment structure body 14 is coupled to the second base surface 12 of the first screwdriver bit body 17. The second screwdriver bit body 18 is shared with the first screwdriver bit body 17 and the shared attachment structure body 14, and the second screwdriver bit body 18 is concentric with the first screwdriver bit body 17. Similar to the conventional double-head screwdriver head design, the second screwdriver bit body 18 is coupled to the attachment construction body 14 and relative to the first screwdriver bit body 17. Similar to the first screwdriver bit body 17, the attachment structure body 14 is coupled to the second base surface 12 of the second screwdriver bit body 18. This embodiment forms the screwdriver head body 1 at either end of the attachment construction body 14. Please refer to Figure 4. The first screwdriver bit body 17 is used to lock the socket fastener, that is, the first screwdriver head body 17 is a clockwise version of the screwdriver head body. Please refer to Figure 5. The second screwdriver bit body 18 is for releasing the socket fastener, that is, the second screwdriver head body 18 is a counterclockwise version of the screwdriver head body. To this end, the first screwdriver bit body 17 and the second screwdriver bit body 18 are mirror images of each other with respect to a central longitudinal section 15 of the attachment structure body 14. The central longitudinal section 15 divides the attachment structure body 14 into two identical sections in the direction of the length. When the first screwdriver bit body 17 rotates clockwise in the socket fastener, the additional clamping teeth of the first screwdriver bit body 17 perform a top biting action, as shown in FIG. When the second screwdriver bit body 18 rotates counterclockwise within the socket fastener, the additional clamping teeth of the second screwdriver bit body 18 perform a top biting action, as shown in FIG.

In one embodiment, similar to a conventional screwdriver bit, the screwdriver bit body 1 tapers from the second base surface 12 toward the first base surface 11 to form a relatively sharp trailing end. In another embodiment, the invention is a ball-shaped screwdriver bit. In this embodiment, the side 5 of each side wall 2 further comprises: a protruding surface and a concave surface. The protruding faces are adjacent to the first base face 11, so that the projecting faces of all of the side stay walls 2 together form a spherical shape. The concave surface is opposite to the first base surface 11 and adjacent to the protruding surface; the concave surfaces of the plurality of side support walls 2 also participate in the generation of the spherical shape. The recessed face also provides a clearance for the screwdriver bit body 1 to be coupled to the socket fastener at an angle. The protruding surface and the concave surface are distributed along the rotating shaft 13 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 protruding surface and the concave surface are the same. Thus, the entire screwdriver bit body 1 becomes a spherical structure. This allows the user to attach the screwdriver bit body 1 to the socket fastener at an angle, which is particularly suitable for use in fasteners that are not easily constructed.

In one embodiment, the coupling pocket 6 comprises: a first pocket and a second pocket. The first and second pockets are opposite each other across the side 5. Moreover, the first and second pockets are arranged to face each other. Thus, two additional nip points are created in each of the side stay walls 2. Therefore, the screwdriver bit body 1 will bite the socket fastener when it is rotated.

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 multi-directional driving head comprising: at least one screwdriver head 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 side surface, and at least one coupling hole; the plurality of side wall radially surrounding a rotating shaft of the screwdriver head body; The first side edge and the second side edge are opposite to each other across the side surface; the coupling hole is recessed into the side surface; the coupling hole extends from the first base surface toward the second base surface on the screwdriver bit body; The coupling hole further includes: a corner driving portion and a concave portion; the corner driving portion is adjacent to the first side edge; the concave portion is adjacent to the corner driving portion and opposite to the first side edge.    The multidirectional drive head according to claim 1, further comprising: an attachment structure body, and a coupling hole, wherein the center of the attachment structure body is located on the rotation axis and distributed along the rotation axis The attachment structure body is coupled to the second base surface; the coupling hole penetrates the attachment structure body along the rotation axis from a direction relative to the screwdriver head body.    The multidirectional drive head according to claim 1, further comprising: an attachment structure body, wherein a center of the attachment structure body is located at the rotation axis and distributed along the rotation axis; the attachment structure The body is coupled to the second base surface.    The multi-directional driving 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; The attachment structure body is coupled to the second base surface of the first screwdriver bit body; the second screwdriver driver head body is concentric with the first screwdriver bit body; the second screwdriver driver head body is opposite to the a position of the first screwdriver bit body is coupled to the attachment structure body; the attachment structure body is coupled to the second base surface of the second screwdriver bit body; the first screwdriver bit body and the second screw The driver head body is mirror images of each other with respect to a central longitudinal section of the attachment structure body.    The multi-directional driving 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 of the screwdriver head body; A plurality of intermittent side walls are interspersed between the plurality of side walls.    The multidirectional driving head according to claim 1, wherein a first side of the corner driving portion overlaps the first side edge; a second side of the corner driving portion is adjacent to the Concave part.    The multidirectional drive head of claim 1, wherein the coupling hole tapers from the first base surface toward the second base surface.