TWI834712B - Advanced holding apparatus - 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.

Description

Advanced gripping device

The present invention relates to tools for loosening and locking fasteners (such as screws and nuts), and in particular to a non-slip multi-directional screwdriver head, which can prevent the screwdriver head from damaging the fastener during the process of removing or locking the fastener. or slipping from the fastener.

Hexagonal bolts, nuts, screws, and other similar threaded fasteners hold multiple parts together by combining with complementary threads (often called female threads). The structure of this type of fastener generally includes: a cylindrical shaft with external threads, and a head at the tail end of the shaft. This external thread is combined with a complementary female thread, usually formed by tapping into a hole or nut, to secure the fastener and the associated part at the same time. The fastener is turned or driven into the female thread by its head receiving an external torque. The head is shaped to allow an external tool, such as a wrench, to apply torque to the fastener to rotate the fastener to a degree that engages the complementary female threads. This type of fastener is simple, cheap, and very effective, so it is commonly used in modern society.

One of the common problems with using these types of fasteners is that the tool often slips around the head, regardless of whether the fastener is male or female. The reasons may be: tools or fasteners are worn, tools or fasteners are rusted, fasteners are over-tightened, or the head of the fastener is damaged.

The present invention is a screwdriver bit design that can virtually eliminate slippage. The design of the present invention consists of several parts. The integral function of these parts is to engage the head of the fastener, thereby effectively transmitting torque between the driver head and the head of the fastener. A traditional bolt driver may require tools and drill holes that are not needed in the first place. The present invention avoids these problems. With the development of electric screwdrivers and electric drills, people have commonly used electric tools to apply torque to remove fasteners. The present invention provides a double-headed screwdriver head that can apply torque to a fastener clockwise or counterclockwise to lock or loosen the fastener. Most driver bits have a standard quarter-inch hexagonal holding end, but also include, but are not limited to, square, hexagonal, or star-shaped drive ends.

1: Screwdriver head body

10: Curve area

11: Straight line area

12:The first hole

13:Second point

14: First base plane

15:Second base plane

16:Rotation axis

17: The first screwdriver head body

18: Second screwdriver head body

19: Attached body

2: Side wall

20:Combining hole

21:First distance

22:Second distance

23: Lock pin safety hole

24: Intermittent side wall

25: Side edge

26: First base surface

3: First side edge

4: Second side edge

5: Side

6:convex surface

7: concave surface

8:Combining point

9: Overall cross-section of the binding hole

Figure 1 is a perspective view of the present invention.

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

Figure 3 is a front view of the embodiment of Figure 2.

Figure 4 is a rear view of the embodiment of Figure 2;

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

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

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

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

Figure 9 is a front view of the embodiment of Figure 8.

Figure 10 is a perspective view of yet another embodiment of the present invention.

Figure 11 is a perspective view of yet another embodiment of the present invention.

Figure 12 is a perspective view of yet another embodiment of the present invention.

FIG. 13 is a front view showing another embodiment related to the embodiment of FIG. 2 , in which the overall cross-section of the coupling cavity is a triangular cross-section.

FIG. 14 is a front view showing another embodiment related to the embodiment of FIG. 2 , in which the overall cross-section of the coupling cavity is a triangular cross-section.

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

The present invention relates to accessories for torque tools, and in particular to a multi-gripping point screwdriver head, which is a screwdriver head or a screw driving head. Compared with other conventional screwdriver bits of similar size, the present invention can apply larger torque to the fastener without damaging the fastener head or the screwdriver tool. The effect of the present invention is achieved by an engaging structure having a plurality of features that enable the engaging structure to effectively hold the head of the fastener. The present invention is a screwdriver head that is compatible with a variety of torque tools. These torque tools include: traditional electric drills, screwdrivers that can accommodate the screwdriver head, socket wrenches, and socket drivers. However, these torque tools are not limited to Torque tool as mentioned above.

Please refer to Figure 1, which is the simplest embodiment of the present invention. In this embodiment, the present invention includes: at least one screwdriver head body 1 and an attachment body 19 . The screwdriver head body 1 is a handle that can be combined with a socket fastener, such as a socket screw and a socket screw rod, so as to quickly apply torque to the socket fastener. The screwdriver head body 1 further includes: a plurality of side walls 2, a first base surface 14, and a second base surface 15. 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 in order to effectively transmit the torque from the torque tool to the socket fastener. The first base surface 14 and the second base surface 15 are opposite to each other across the plurality of side walls 2 , and the first base surface 14 and the second base surface 15 are perpendicular to the plurality of side walls 2 to form a prismatic screwdriver head body 1 . In a preferred embodiment of the present invention, the first base surface further includes a first base surface 26 , wherein the first base surface 26 is a plane and perpendicular to the side surface 5 of each of the plurality of side walls 2 .

The attachment body 19 allows the invention to be attached to an external torque tool, whereby torque can be applied to the socket fastener via the screwdriver bit body 1 . The attachment body 19 is distributed along a rotation axis 16 of the screwdriver head body 1 , and its center is located on the rotation axis 16 . Therefore, the rotation axis of the attachment body 19 overlaps with the rotation axis 16 of the screwdriver bit body 1 . Furthermore, the attachment body 19 is connected to the second base surface 15 . In a preferred embodiment of the invention, the attachment body 19 has a hexagonal cross-section and thus can be coupled to a female attachment element of an external torque tool. External torque tools may be, but are not limited to: electric drills, torque wrenches, pneumatic drills, socket screwdrivers, and other similar torque tools.

Please refer to Figure 3 and Figure 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 8 . A plurality of side walls 2 radially surround an axis of rotation 16 of the screwdriver bit body 1 to produce a shape complementary to the cross-section of the socket fastener. The number of side walls 2 changes with the shape of the socket fastener so as to complement the shape of the socket fastener. In one embodiment of the invention, the number of side walls 2 is six, and the cross-section resulting from the screwdriver head body 1 is a hexagon. In another embodiment of the invention, the number of side walls 2 is four.

The sides 5 bear against the socket fastener, in particular against the side wall of the head of the socket fastener. The first side edge 3 and the second side edge 4 face each other across the side surface 5 . Viewed from a top view or a bottom view, the first side edge 3 and the second side edge 4 form the corners of the screwdriver head body 1 . The coupling hole 8 is recessed into the side 5, so that on the side 5 Creates additional clamping points or teeth. The coupling hole 8 may not contact the side wall of the fastener but maintain a gap between the fastener and the side wall of the fastener. When the side 5 adjacent the coupling cavity 8 bites into the side of the fastener, the coupling cavity 8 can receive material from the fastener. The coupling hole 8 and the first side edge 3 are separated by a first distance 21. The clamping point is then created by the joining cavity 8 and the side surface 5 . In another embodiment of the invention, the clamping point is generated by the bonding cavity 8 and an adjacent side edge, wherein this adjacent side edge can be the first side edge 3 or the second side edge 4, especially the closest side edge. Combine the side edges of hole 8. The coupling hole 8 extends from the first base surface 14 toward the second base surface 15 on the screwdriver head body 1 . Therefore, the additional clamping points extend in the length direction of the screwdriver bit body 1, and the maximum clamping and binding force can be achieved between the screwdriver bit body 1 and the socket fastener. In a preferred embodiment of the present invention, an entire cross-section 9 of the coupling cavity 8 is parallel to the first base surface 14 and the second base surface 15 . In one embodiment of the present invention, the coupling cavity 8 is gradually tapered from the first base surface 14 toward the second base surface 15 . Thus, the section of the partial circle adjacent to the first base surface 14 is larger than the section of the partial circle adjacent to the second base surface 15 , as shown in FIG. 11 . Please refer to Figure 3. In one embodiment of the present invention, the overall cross-section 9 of the coupling cavity 8 is a partially circular cross-section; this partially circular cross-section is recessed between the first side edge 3 and the second side edge 4 of the screwdriver head. Ontology 1. This semi-circular cross-section makes the screwdriver head body 1 have no high stress points, or only very few high stress points, thereby increasing the service life of the overall tool. Please refer to Figure 13 and Figure 14. In one embodiment of the present invention, the overall cross-section 9 of the coupling cavity 8 is a triangular cross-section; this triangular cross-section is recessed into the screwdriver head body 1 between the first side edge 3 and the second side edge 4 . In other embodiments of the present invention, the coupling cavity 8 may have cross sections of other shapes. Other shapes of cross-sections include, but are not limited to: semi-square, semi-rectangular, and semi-elliptical cross-sections.

Please refer to Figure 8 and Figure 9. In one embodiment of the present invention, the overall cross-section 9 of the bonding cavity 8 further includes: a curved area 10 and a straight line area 11 . In this embodiment, the present invention is implemented as an object removal screwdriver head, wherein the present invention is designed to remove damaged fasteners, damaged Rods, broken studs, and similar items. Thereby, the coupling hole 8 is made with a unique shape to serve as sharp biting teeth, which can bite into the corners of the socket fastener, allowing the material inside the socket fastener to enter the coupling hole 8, and thereby produce a larger Excellent biting power of traditional tools. Traditional tools are simply designed to push material away. The excellent bite capability of the present invention is particularly evident in the sockets of worn or damaged fasteners. Furthermore, the curved area 10 is a partially circular curve, which is adjacent to the first side edge 3 ; the straight line area 11 is adjacent to the curved area 10 and is opposite to the first side edge 3 . The straight area 11 guides a portion of the socket fastener against the coupling teeth. The straight area 11 extends from the curved area 10 to the second side edge 4 . In other words, the straight area 11 starts from the curved area 10 and ends at the second side edge 4 .

Please refer to Figure 11. In one embodiment of the invention, the coupling hole 8 is located in the center of the side 5 . Furthermore, the coupling hole 8 is a second distance 22 away from the second side edge 4, wherein the first length is equal to the second length. This position allows the coupling hole 8 to combine with the inner edge of the socket fastener to achieve maximum torque transfer efficiency and minimum slip possibility. Moreover, this embodiment can rotate the socket fastener in a clockwise direction or a counterclockwise direction.

In one embodiment of the present invention, the ratio of the first distance 21 , the second distance 22 , and the width of the bonding hole 8 can be changed to achieve a dedicated clockwise or counterclockwise design. In one embodiment, the present invention is designed as a clockwise screwdriver bit. In this embodiment, the second distance 22 is greater than the first distance 21 . When the ratio of the first distance 21, the second distance 22, and the width of the coupling hole 8 is 1:5:4, the invention can achieve the function of clamping the socket fastener in the clockwise direction and applying torque to the socket fastener. design. This design is used to screw in and secure socket fasteners. In another embodiment, the invention is designed as a counterclockwise screwdriver bit. In this embodiment, the first distance 21 is greater than the second distance 22 . When the ratio of the first distance 21, the second distance 22, and the width of the coupling hole 8 is 5:1:4, the present invention can be achieved in the counterclockwise direction. A design that clamps the socket fastener in the direction and applies torque to the socket fastener. This design uses loose and removable socket fasteners.

Please refer to Figure 10. In one embodiment of the invention, the invention is designed as a keyway/square bit. In this embodiment, the screwdriver bit body 1 is a keyway-type screwdriver bit body, which can transmit torque to the socket fastener through a plurality of protrusions. More specifically, the present invention further includes a plurality of intermittent side walls 24 . Each intermittent sidewall 24 is a flat surface that incorporates a socket fastener that functions like a conventional screwdriver head design. A plurality of intermittent side walls 24 radially surround the axis of rotation 16 . A plurality of intermittent side walls 24 are interspersed between a plurality of side walls 2 . The width ratios of the intermittent side walls 24 and the side walls 2 can be varied to accommodate various screwdriver head designs. In this embodiment, a plurality of intermittent side walls 24 and a plurality of side walls 2 are alternately distributed around the rotation axis 16 . In other embodiments of the invention, three of the plurality of intermittent sidewalls 24 are present between each plurality of intermittent sidewalls 24 . Such an arrangement forms a coupling feature/teeth on every other protrusion of the screwdriver head body 1 .

Please refer to Figure 6. In one embodiment, the invention further includes a binding hole 20 . The coupling hole 20 allows the present invention to be attached to a male attachment structure of an external torque tool, such as a socket wrench or screwdriver. The coupling hole 20 extends into the attachment body 19 and relative to the screwdriver bit body 1 . The coupling hole 20 is shaped to accept the male attachment configuration of the socket wrench. The shape of the coupling hole 20 is preferably square because most socket wrenches use a square attachment structure. In this embodiment, the shape of the attachment body 19 is preferably cylindrical. In other embodiments, the shapes of the combination hole 20 and the attachment body 19 may vary depending on 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 dual-ended screwdriver head that provides both clockwise and counterclockwise configurations in a single tool. In this embodiment, The screwdriver bit body 1 includes: a first screwdriver bit body 17 and a second screwdriver bit body 18 . The cross section of the attachment body 19 is preferably hexagonal. The center of the attachment body 19 is located on the rotation axis 16 of the first screwdriver bit body 17 and is distributed along the rotation axis 16 of the first screwdriver bit body 17 . Therefore, the rotation axis of the attachment body 19 completely overlaps the rotation axis 16 of the first screwdriver bit body 17 . The attachment body 19 is connected to the second base surface 15 of the first screwdriver bit body 17 . The second screwdriver bit body 18 shares the first screwdriver bit body 17 and the attachment body 19 , and the second screwdriver bit body 18 is concentric with the first screwdriver bit body 17 . Similar to the design of a conventional double-ended screwdriver bit, the second screwdriver bit body 18 is connected to the attachment body 19 and is relative to the first screwdriver bit body 17 . Similar to the first screwdriver bit body 17 , the attachment body 19 is connected to the second base surface 15 of the second screwdriver bit body 18 . The first screwdriver bit body 17 is used to rotate the socket fastener in a clockwise direction, that is to say, the first screwdriver bit body 17 is a clockwise configured screwdriver bit body. Please refer to Figure 3. The second distance 22 of the first screwdriver bit body 17 is greater than the first distance 21 of the first screwdriver bit body 17 . In this way, the additional clamping point of the first screwdriver bit body 17 is adjacent to the first side edge 3 of the first screwdriver bit body 17 . The second screwdriver bit body 18 is used to loosen or remove the socket fastener from the counterclockwise direction, that is to say, the second screwdriver bit body 18 is a counterclockwise configured screwdriver bit body. Please refer to Figure 4. The first distance 21 of the second screwdriver bit body 18 is greater than the second distance 22 of the second screwdriver bit body 18 . In this way, the additional clamping point of the second screwdriver bit body 18 is adjacent to the second side edge 4 of the second screwdriver bit body 18 .

Please refer to Figure 5. In one embodiment, the coupling hole 8 includes: a first hole 12 and a second hole 13 . This embodiment is another configuration of the present invention, which has both clockwise and counterclockwise functions. The first hole 12 and the second hole 13 are parallel to each other and separated from each other. The first hole 12 is adjacent to and separated from the first side edge 3 , and the second hole 13 is adjacent to and separated from the second side edge 4 . This embodiment allows the user to rotate the invention clockwise or counterclockwise without moving the invention from the torque tool. on and still have the benefit of an extra clamping point. In this embodiment, the present invention preferably includes a plurality of intermittent side walls 24 , wherein the plurality of intermittent side walls 24 are interspersed between the plurality of side walls 2 .

Please refer to Figure 7. In one embodiment, the present invention is manufactured as a screwdriver bit having a ball-shaped end point. In this embodiment, each side surface 5 of the plurality of side walls 2 includes: a convex surface 6 and a concave surface 7 . The convex surface 6 and the concave surface 7 form a curved surface. Therefore, the screwdriver bit body 1 having a plurality of side walls 2 forms a spherical-like structure. The convex surface 6 is adjacent to the first base surface 14; each convex surface 6 of the plurality of side walls 2 participates in forming a spherical-like structure. The concave surface 7 is adjacent to the convex surface 6 and relative to the first base surface 14; each concave surface 7 of the plurality of side walls 2 participates in forming a spherical-like structure; when the screwdriver head body 1 is combined with the socket fastener at an angle, the concave surface 7 7 can provide appropriate clearance. The convex surface 6 and the concave surface 7 are distributed along the rotation axis 16 of the screwdriver head body 1 (that is, distributed along the length direction of the screwdriver head body 1 ), so that the spherical structure ends at one end of the screwdriver head body 1 . In a preferred embodiment of the present invention, the curvature, height, and length of the convex surface 6 are respectively the same as the curvature, height, and length of the concave surface 7 . In a preferred embodiment of the present invention, the coupling hole 8 extends over the entire length of the convex surface 6 and the concave surface 7 . Thus, regardless of the angle between the socket fastener and the screwdriver bit body 1 , additional clamping points or teeth are created on the screwdriver bit body 1 .

Please refer to Figure 10. In one embodiment, the present invention is fabricated into a tamper-resistant screwdriver head. In this embodiment, the present invention includes a latch safety hole 23; the latch safety hole 23 is complementary to the shape of a latch on a unique socket fastener and is capable of interlocking with the latch. According to this embodiment, a series of unique socket fasteners and unique screwdriver bits can be manufactured, used, and sold. This interlocking design is for safety reasons and prevents unauthorized persons from using or operating certain socket fasteners. The locking pin safety hole 23 is concentrically located on the rotation axis 16 of the screwdriver head body 1 . More importantly, the lock pin is secure The full hole 23 extends from the first base surface 14 into the screwdriver bit body 1 . The size, depth, and cross-sectional shape of the lock pin safety hole 23 can be changed to suit the user's needs or specifications.

Please refer to Figure 11. In some embodiments, the invention further includes additional features to assist the user in guiding the screwdriver bit body 1 into the socket fastener. In one embodiment, the present invention further includes a side edge 25; the material between each of the plurality of side walls 2 and the first base surface 14 is chamfered to form the side edge 25. The side edge 25 can help the user lock the screwdriver head body 1 into the socket fastener. Please refer to Figure 12. In one embodiment, the invention is manufactured as a screwdriver. In this embodiment, the screwdriver head body 1 tapers from the second base surface 15 to the first base surface 14 , similar to a conventional screwdriver. The degree of taper can be changed depending on the user's needs.

In some embodiments, the invention is constructed as a sleeve that can lock or loosen a screw or other similar fastener. In these embodiments, the screwdriver head body 1 is made with a hole that penetrates the shaft, similar to a conventional socket design.

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

1: Screwdriver head body

14: First base plane

15:Second base plane

16:Rotation axis

19: Attached body

2: Side wall

26: First base surface

3: First side edge

4: Second side edge

5: Side

8:Combining point

Claims (13)

An advanced gripping device, which includes: at least one screwdriver head body and an attachment body, wherein: the screwdriver head body further includes: a plurality of side walls, a first base surface, and a second base surface; Each of the plurality of side walls further includes: a first side edge, a second side edge, a side surface, and at least one coupling hole; the plurality of side walls radially surround a rotation axis of the screwdriver head body ; The first side edge and the second side edge are opposite to each other across the side; the coupling hole is vertically recessed into the side; the coupling hole is on the screwdriver head body from the first base surface toward the second base The coupling hole and the first side edge are separated by a first distance; the coupling hole and the second side edge are separated by a second distance; the first distance is greater than the second distance or the second distance is greater than the third distance. A distance; an entire cross-section of the coupling hole is parallel to the first base surface and the second base surface; the attachment body is distributed along the rotation axis of the screwdriver head body, and the center of the attachment body Located on the rotation axis; the attachment body is connected to the second base surface; the coupling hole gradually becomes tapered from the first base surface to the second base surface. The advanced gripping device described in item 1 of the patent application further includes: a lock pin safety hole, wherein: the lock pin safety hole is concentrically located on the rotation axis of the screwdriver head body; The locking pin safety hole vertically extends from the first base surface into the screwdriver head body. In the advanced gripping device described in claim 1 of the patent application, the at least one screwdriver bit body further includes: a first screwdriver bit body and a second screwdriver bit body; the attachment body extends along The rotation axis of the first screwdriver bit body is distributed, and the center of the attachment body is located on the rotation axis; the attachment body is connected to the second base surface of the first screwdriver bit body; the second screw The screwdriver bit body is concentric with the first screwdriver bit body; the second screwdriver bit body is adjacent to the attachment body and relative to the first screwdriver bit body; the attachment body is connected to the second screwdriver bit body the second base surface; the first distance of the first screwdriver head body is greater than the second distance of the first screwdriver head body; the second distance of the second screwdriver head body is greater than the second screw The first distance of the screwdriver head body. As for the advanced gripping device described in item 1 of the patent application, the side surface further includes: a convex surface and a concave surface; the convex surface is adjacent to the first base surface; the concave surface is adjacent to the convex surface and relative to the first base surface. surface; the convex surface and the concave surface are distributed along the rotation axis of the screwdriver head body. As for the advanced gripping device described in item 1 of the patent application, the overall cross-section of the combination hole further includes: a curved area, and a straight line area; the curved area is adjacent to the first side edge; the straight line area is adjacent to the curved area and relative to the first side edge; the straight line area extends from the curved area to the second side edge . In the advanced gripping device described in item 1 of the patent application, the screwdriver bit body is a keyway-type screwdriver bit body; the keyway-type screwdriver bit body further includes a plurality of intermittent side walls; the plurality of intermittent side walls An intermittent sidewall radially surrounds the rotation axis; the plurality of intermittent sidewalls are interspersed between the plurality of sidewalls. The advanced gripping device as claimed in claim 1, wherein a side edge between each of the plurality of side walls and the first base surface is chamfered. In the advanced gripping device described in claim 1 of the patent application, the screwdriver head body gradually becomes tapered from the second base surface to the first base surface. The advanced gripping device as described in item 1 of the patent application, wherein the overall cross-section of the combination hole is a partially circular cross-section; the partially circular cross-section is located at the first side edge and the second The screwdriver head body is recessed between the side edges. The advanced gripping device as described in item 1 of the patent application, wherein the overall cross-section of the coupling hole is a triangular cross-section; the triangular cross-section is between the first side edge and the second side edge. Recessed into the screwdriver head body. The advanced gripping device as described in item 1 of the patent application, wherein the first base surface further includes a first base surface; the first base surface and the side surface are planar; The first base surface and the side surface are perpendicular to each other. The advanced gripping device as described in claim 1 of the patent application further includes: a combination hole, wherein the combination hole extends into the attachment body along the rotation axis and is relative to the screwdriver head body. The advanced gripping device as described in item 1 of the patent application, wherein the combination hole further 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.

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