TWI807482B - Multi-grip socket 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 an additional gripping point to prevent slippage in between the screw bit body and the socket fastener. The engagement cavity traverses normal and into the bracing surface. Additionally, the engagement cavity traverses into the screw bit body from the first base to the second base. The engagement cavity is specifically positioned offset from the first lateral edge by a first distance and positioned offset from the second lateral edge by a second distance.

Description

Multi-grip socket bit

The present invention is related to a tool for loosening and tightening fasteners (such as screws and nuts), in particular to a non-slip multi-directional screwdriver bit, which can prevent the screwdriver bit from damaging the fastener or slipping off from the fastener during the process of taking out or tightening the fastener.

Hex bolts, nuts, screws, and other similar threaded fasteners hold parts together by engaging complementary threads (often called female threads). The structure of this type of fastener generally includes: a cylindrical shaft portion with external threads, and a head at the tail end of the shaft portion. This external thread is combined with a complementary female thread, which is usually formed by tapping into a hole or nut, to secure the fastener and at the same time secure the associated parts. The fastener is turned or driven into the female thread by receiving an external torque on its head. The shape of the head is manufactured to allow an external tool, such as a wrench, to apply torque to the fastener to rotate the fastener to some extent engaging the complementary female thread. Such fasteners are simple, cheap, and very effective, so they are commonly used in modern society.

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.

The main object of the present invention is to provide a multi-grip socket bit, especially a bit design that can substantially eliminate slippage.

The design of the present invention consists of several parts. The integral function of these parts can engage the head of the fastener, thereby effectively transmitting torque between the bit of the driver and the head of the fastener. Conventional bolt drivers may require tools and drill holes that would otherwise not be needed. The present invention avoids these problems. With the development of electric screwdrivers and electric drills, people have generally used electric tools to apply torque to remove fasteners. The invention provides a double-headed screwdriver bit, which can apply a torque to a fastener in a clockwise or counterclockwise direction, so as to lock or loosen the fastener. Most screwdriver bits have a standard quarter inch hex gripping end, but also include but are not limited to driving ends that are square, hex, or star shaped.

1: Screwdriver head body

2: side wall

3: First side edge

4: Second side edge

5: side

6: combined hole

9: The first base

10: The second base surface

11:Rotary axis

12: First distance

13: second distance

14: Attach structure body

15: Combination hole

16: The first screwdriver head body

17: Second screwdriver head body

18: Intermittent side wall

19: The first hole

20: The second hole

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of an embodiment of the present invention.

Figure 3 is the top view of Figure 2.

Figure 4 is the view below Figure 2.

Fig. 5 is a perspective view of another embodiment of the present invention.

Fig. 6 is a perspective view of another embodiment of the present invention.

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

First of all, it should be noted that the illustrations 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 illustrations.

The invention relates to accessories of torque tools, in particular to a multi-clamping point socket driver head, which is a screwdriver head or a screw driver head. Compared with other conventional screwdriver bits of similar size, the present invention can apply higher torque to the fastener without damaging the fastener head or the bit tool. The effect of the present invention is achieved by the engaging structure having a plurality of features, which enable the engaging structure to effectively grip the head of the fastener. The present invention is a socket driver bit, which is compatible with a variety of torque tools, including: traditional electric drills, screwdrivers that can accommodate screwdriver bits, socket wrenches, socket drivers, but these torque tools are not limited to the above torque tools.

Please refer to FIG. 1 , which is a perspective view of the present invention. In this embodiment, the present invention includes: at least one screwdriver head body 1 . The screwdriver head body 1 is a handle bar, which can be combined with socket fasteners, such as socket screws and socket screws, so as to quickly apply torque to the socket fasteners. The screwdriver head body 1 further includes: a plurality of side walls 2 , a first base 9 , and a second base 10 . Generally speaking, the screwdriver head body 1 is a prism made of high-strength metal. A plurality of side walls 2 are combined with the socket fastener so as to effectively transmit torsion force from the torque tool to the socket fastener. The first base surface 9 and the second base surface 10 face each other through the plurality of sidewalls 2 , and the first base surface 9 and the second base surface 10 are perpendicular to the plurality of sidewalls 2 to form a prism-shaped screwdriver bit body 1 .

Please refer to FIG. 3 and FIG. 4 , each side wall 2 further includes: 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 walls 2 radially surround a rotation axis 11 of the screwdriver bit body 1 to form a shape complementary to the section of the socket fastener. The number of side walls 2 varies with the shape of the socket fastener so as to complement the shape of the socket fastener. In one embodiment of the present invention, the number of side walls 2 is 6, so that the cross section of the screwdriver bit body 1 is a hexagon. In another embodiment of the present invention, the number of side walls 2 is four, and the cross section of the screwdriver bit body 1 is a quadrangular shape. The side 5 bears against the socket fastener, especially the side wall of the socket fastener head. The first side edge 3 and the second side edge 4 are opposite to each other across a side surface 5 . Viewed from a top view or a bottom view, the first side edge 3 and the second side edge 4 constitute the corners of the screwdriver bit body 1 . The coupling pockets 6 are recessed into the side face 5 , thus creating additional gripping points or gripping teeth on the side face 5 . The additional clamping point is produced by the combination cavity 6 and the adjacent side edge, wherein the adjacent side edge can be the first side edge 3 or the second side edge 4 , especially the side edge closest to the combination cavity 6 . The combination hole 6 extends from the first base surface 9 toward the second base surface 10 on the screwdriver bit body 1 . Moreover, the combination hole 6 gradually becomes thinner from the first base surface 9 toward the second base surface 10 . Therefore, the additional clamping point extends in the length direction of the screwdriver bit body 1 , so that the maximum clamping force can be provided between the coupling hole 6 and the socket fastener. In a preferred embodiment, the coupling hole 6 has a semicircular cross section. The semi-circular section makes the screwdriver bit body 1 have no high stress points, or only a few high stress points, thus increasing the life of the overall tool. In other embodiments of the present invention, the combination cavity 6 may have other cross-sections. Other cross-sections include, but are not limited to, semi-square, semi-rectangular, and semi-elliptical cross-sections.

In a preferred embodiment of the present invention, the coupling hole 6 is arranged to transmit torsion force most effectively, especially the coupling hole 6 is located at a first distance 12 from the first side edge 3 . same , the combination hole 6 is located at a second distance 13 from the second side edge 4 . When the ratio of the first distance 12 , the second distance 13 , and the width of the coupling hole 6 is 1:5:4, the torque transmission is most efficient.

The ratio of the first distance 12, the second distance 13, and the width of the binding hole 6 can be changed to achieve a clockwise or counterclockwise design. Shown in Fig. 1 is an embodiment of the clockwise screwdriver bit of the present invention. In this embodiment, the first distance 12 is smaller than the second distance 13 . When the ratio of the first distance 12, the second distance 13, and the width of the joint hole 6 is 1:5:4, the design of the present invention to clamp the socket fastener in a clockwise direction and apply torque to the socket fastener can be achieved. This design is used to screw or secure socket fasteners. In another embodiment, the present invention is configured as a counterclockwise screwdriver bit. In this embodiment, the first distance 12 is greater than the second distance 13 . When the ratio of the first distance 12, the second distance 13, and the width of the joint hole 6 is 5:1:4, the design of the present invention to clamp the socket fastener in the counterclockwise direction and apply torque to the socket fastener can be achieved. This design is used to loosen or remove socket fasteners.

Please refer to Figure 5. In one embodiment, the present invention further includes a plurality of intermittent sidewalls 18 . Each intermittent side wall 18 is a flat surface that, in combination with socket fasteners, functions like a conventional screwdriver bit design. A plurality of intermittent side walls 18 radially surround the rotation axis 11 of the screwdriver bit body 1 . A plurality of intermittent sidewalls 18 intersperses between the plurality of sidewalls 2 . Therefore, the plurality of intermittent sidewalls 18 and the plurality of sidewalls 2 are alternately distributed in the radial direction of the screwdriver bit body 1 .

The present invention further includes an attachment structure, which allows an external torque tool to be attached to the screwdriver bit body 1 and transmits the torque to the socket fastener through the screwdriver bit body 1 . Please refer to Figure 1. The present invention further includes an attachment structure body 14 . The attachment structure body 14 is centered on the rotation axis 11 and distributed around the rotation axis 11 . Therefore, the rotation axis 11 of the attachment structure body 14 completely overlaps with the rotation axis 11 of the screwdriver bit body 1 . The attachment structure body 14 is connected to the second base surface 10 . The preferred cross-sectional shape of the attachment structure body 14 is hexagonal, so as to be installed on an external torque tool The female attachment structure (attachment hole), torque tools include but are not limited to: electric drill, torque wrench, pneumatic drill, and socket screwdriver.

Please refer to Figure 6. In one embodiment, the present invention further includes a combination hole 15 . The coupling holes 15 allow the present invention to be attached to the male attachment formation of an external torque tool, such as a socket wrench or screwdriver. The coupling hole 15 penetrates into the attachment structure body 14 and is opposite to the screwdriver bit body 1 . The coupling hole 15 is shaped to accept the male attachment configuration of a socket wrench. The shape of the coupling hole 15 is preferably a square, because most socket wrenches use a square attachment structure. In this embodiment, the shape of the attaching structure body 14 is preferably cylindrical. In other embodiments, the shape of the coupling hole 15 and the attachment structure body 14 may vary with the design of the torque tool and the attachment method.

Please refer to Figure 2. In one embodiment, the present invention is manufactured as a double-headed screwdriver bit, which can provide clockwise and counterclockwise screwdriver bit bodies 1 at the same time. In this embodiment, the screwdriver bit body 1 includes: a first screwdriver bit body 16 and a second screwdriver bit body 17 . 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 11 of the first screwdriver bit body 16 , and is distributed along the rotation axis 11 of the first screwdriver bit body 16 . Therefore, the rotation axis 11 of the attachment configuration body 14 completely overlaps with the rotation axis 11 of the first screwdriver bit body 16 . The attachment structure body 14 is connected to the second base surface 10 of the first screwdriver bit body 16 . The second screwdriver bit body 17 shares the attachment structure body 14 with the first screwdriver bit body 16 , and the second screwdriver bit body 17 is concentric with the first screwdriver bit body 16 . Similar to the design of conventional double-ended screwdriver bits, the second screwdriver bit body 17 is connected to the attachment structure body 14 and is opposite to the first screwdriver bit body 16 . Similar to the first screwdriver bit body 16 , the attachment structure body 14 is connected to the second base surface 10 of the second screwdriver bit body 17 . In this embodiment, the screwdriver bit body 1 is formed at either end of the attachment structure body 14 . The first screwdriver bit body 16 is used to Rotate the socket fastener in a needle direction, that is to say, the first screwdriver bit body 16 is a clockwise version of the screwdriver bit body.

Please refer to Figure 3. The second distance 13 of the first bit body 16 is greater than the first distance 12 of the first bit body 16 . In this way, the additional gripping point of the first bit body 16 is adjacent to the first side edge 3 of the first bit body 16 . The second screwdriver bit body 17 is used to loosen or take out the socket fastener from the counterclockwise direction, that is to say, the second screwdriver bit body 17 is a counterclockwise version of the screwdriver bit body. Please refer to Figure 4. The first distance 12 of the second screwdriver bit body 17 is greater than the second distance 13 of the second screwdriver bit body 17 . In this way, the additional gripping point of the second bit body 17 is adjacent to the second side edge 4 of the second bit body 17 .

Please refer to Figure 5. In one embodiment, the combination hole 6 includes: a first hole 19 and a second hole 20 . In this embodiment, the present invention has both clockwise and counterclockwise functions. The first cavity 19 and the second cavity 20 are parallel to each other and separated from each other. The first pocket 19 is adjacent to and spaced from the first side edge 3 and the second pocket 20 is adjacent to and spaced from the second side edge 4 . This embodiment allows the user to rotate the invention clockwise or counterclockwise without removing the invention from the torque tool and still have the advantage of the additional gripping point. In this embodiment, the present invention preferably includes a plurality of intermittent sidewalls 18 , wherein the plurality of intermittent sidewalls 18 intersperses between the plurality of sidewalls 2 .

Please refer to Figure 7. In one embodiment, the invention is fabricated as a screwdriver bit with a spherical tip. In this embodiment, each side 5 of the plurality of side walls 2 is a concave surface. Thus, the whole screwdriver bit body 1 forms a spherical shape. This embodiment allows the user to use a certain angle to combine the socket fastener, which is especially suitable for fasteners that are not easy to install.

To sum up, the present invention has excellent progressive practicability among similar products. At the same time, after checking the technical information on this type of structure at home and abroad, no similar structure has been found in the literature. Therefore, the present invention has already met the requirements of the invention patent, and the application is filed according to law.

However, what is described above is only one of the preferred feasible embodiments of the present invention, so all equivalent structural changes made by applying the description of the present invention and the scope of the patent application should be included in the scope of the patent of the present invention.

1: Screwdriver head body

2: side wall

3: First side edge

4: Second side edge

5: side

6: combined hole

9: The first base

10: The second base surface

11:Rotary axis

14: Attach structure body

Claims (16)

A multi-grip socket bit, which includes: at least one screwdriver bit body; wherein the at least one screwdriver bit body further comprises: a plurality of side walls, a first base surface, and a second base surface; wherein each of the plurality of side walls further comprises: a first side edge, a second side edge, a side surface, and at least one coupling hole; wherein the plurality of side walls radially surround a rotation axis of the at least one screwdriver bit body; wherein the first side edge and the second side edge are separated by The side faces each other; wherein the combination hole extends into the side; wherein the combination hole extends from the first base surface toward the second base surface on the at least one screwdriver bit body; wherein the combination hole is a first distance from the first side edge, leaving a part of the side between the first side edge and the combination hole; wherein the combination hole is a second distance from the second side edge, leaving a part of the side between the second side edge and the combination hole; wherein the entire cross section of the combination hole is parallel to the first base surface and the second base surface, and the first distance is greater than The second distance is at or less than the second distance. According to the multi-clamping point socket screwdriver bit described in claim 1, it further includes an attachment structure body and a combination hole; wherein the center of the attachment structure body is located at the rotation axis and is distributed around the rotation axis; wherein the attachment structure body is connected to the second base surface; wherein the combination hole penetrates the attachment structure body and is opposite to the at least one screwdriver bit body. According to the multi-clamping point socket driver bit described in claim 1, it further includes an attachment structure body, wherein the center of the attachment structure body is located at the rotation axis and distributed around the rotation axis; wherein the attachment structure body is connected to the second base surface. According to the multi-grip socket bit described in claim 1, it further includes an attachment structure body, wherein the screwdriver bit body further includes: a first screwdriver bit body, and a second screwdriver bit body; wherein the center of the attachment structure body is located at the rotation axis of the first screwdriver bit body, and is distributed around the rotation axis; wherein the attachment structure body is connected to the second base surface of the first screwdriver bit body; wherein the second screwdriver bit body is connected to the attachment structure body; The attachment structure body is connected to the second base surface of the second screwdriver bit body; wherein the second distance of the first screwdriver bit body is greater than or smaller than the first distance of the first screwdriver bit body; wherein the first distance of the second screwdriver bit body is greater than or smaller than the second distance of the second screwdriver bit body. According to the multi-clamping point socket driver head according to claim 1, the ratio of the first distance, the second distance, and the width of the coupling hole is 1:5:4. According to the multi-clamping point socket driver bit as claimed in claim 1, wherein the coupling hole is tapered from the first base surface to the second base surface. According to the multi-clamping point socket driver bit according to claim 1, at least one side wall does not have the coupling hole. According to the multi-clamping point socket driver bit as claimed in claim 1, the entire cross-section of the combination hole is a partial circular cross-section. According to the multi-grip socket bit of claim 1, wherein the first base surface includes a first base surface; wherein the first base surface and the side surface are flat; and the first base surface and the side surface are perpendicular to each other. According to the multi-grip socket driver bit described in claim 1, each of the combination holes includes: a first hole and a second hole; the first hole and the second hole are parallel to each other and separated from each other; the first hole is adjacent to the first side edge; the second hole is adjacent to the second side edge. The multi-grip socket driver bit according to claim 1, wherein the screwdriver bit body is a ball-end bit. A multi-grip socket bit, comprising: at least one screwdriver bit body; wherein the at least one screwdriver bit body further comprises: a plurality of side walls, a first base surface, and a second base surface; wherein each of the plurality of side walls further comprises: a first side edge, a second side edge, a side surface, and a pair of first cavity and second cavity; wherein the plurality of side walls radially surround a rotation axis of the at least one screwdriver bit body; wherein the first side edge and the second side edge facing each other across the side; wherein the first cavity and the second cavity extend into the side; wherein the first cavity and the second cavity extend on the at least one screwdriver bit body from the first base toward the second base; wherein the first cavity is a first distance from the first side edge leaving a portion of the side between the first side edge and the first cavity; wherein the first cavity is a second distance from the second side edge; wherein the second cavity is a third distance from the first side edge; wherein the second cavity is a fourth distance from the second side edge, leaving a portion of the side between the second side edge and the second cavity; wherein the first distance is greater than the second distance and the third distance is less than the fourth distance, or the first distance is less than the second distance and the third distance is greater than the fourth distance; wherein the entire cross-section of the first cavity and the second cavity is parallel to the first base surface and the second base surface, and at least one side wall does not have the first cavity and the second cavity. The multi-grip socket bit according to claim 12, wherein the first cavity and the second cavity have a partial circular cross-section. The multi-grip socket bit according to claim 12, wherein the first base surface includes a first base surface; wherein the first base surface and the side surface are flat; and the first base surface and the side surface are perpendicular to each other. The multi-grip socket bit according to claim 12, wherein the first distance is equal to the fourth distance, and the second distance is equal to the third distance. According to the multi-clamping point socket driver bit described in claim 12, further comprising a plurality of intermittent side walls, each intermittent side wall is a flat surface, and the plurality of intermittent side walls are interspersed between the plurality of side walls.