CN110573302B

CN110573302B - Multi-clamping-point sleeve screwdriver head

Info

Publication number: CN110573302B
Application number: CN201780088883.8A
Authority: CN
Inventors: 保罗·酷酷卡; 托马斯·斯蒂芬·酷酷卡
Original assignee: Reinforcement Holdings Co ltd
Current assignee: Reinforcement Holdings Co ltd
Priority date: 2017-03-23
Filing date: 2017-07-19
Publication date: 2021-10-01
Anticipated expiration: 2037-07-19
Also published as: EP3895844A1; EP3571016B1; WO2018172831A1; CN113770963B; CA3056534A1; ES2895766T3; MX380710B; CN110573302A; MX2019010944A; PL3571016T3; JP2020128007A; JP6714262B2; RS62493B1; EP3571016A1; EP3571016A4; CN113770963A; AU2017404582B2; JP2020508887A; CA3056534C

Abstract

The present invention discloses a socket driver bit with multiple clamping points, which can effectively transmit the torque to the socket fastener. The present invention includes: at least one screwdriver bit body. The screwdriver head body further includes: a plurality of side walls, a first base surface, and a second base surface. A plurality of side walls radially surround an axis of rotation of the bit body. Each side wall further includes: a first side edge, a second side edge, a side surface, and at least one combination hole. The engaging pockets create additional gripping points, thereby preventing slippage between the bit body and the socket fastener. The combined hole is recessed into the side. The coupling cavity extends from the first base surface toward the second base surface on the head body of the screwdriver. The bonding hole is located at a first distance from the first side edge and at a second distance from the second side edge.

Description

Multi-clamping-point sleeve screwdriver head

Technical Field

The present invention relates to tools for loosening and locking fasteners, particularly screws and nuts. And more particularly to a slip-resistant multidirectional driver head that prevents the driver head from damaging or slipping off the fastener during removal or locking of the fastener.

Background

Hex bolts, nuts, screws, and other similar threaded fasteners secure a plurality of parts together by engaging complementary threads, commonly known as female threads. The structure of such fasteners generally comprises: a cylindrical shaft portion having an external thread, and a head portion at a rear end of the shaft portion. Such an external thread engages a complementary female thread, typically formed by tapping into a hole or nut, to secure such a fastener and simultaneously secure the associated component. The fastener is rotated or driven into the female thread by the head of the fastener 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 engage the complementary female thread to some extent. Such fasteners are simple, inexpensive, and very effective, and are therefore commonly used in modern society.

One of the common problems with such fasteners is: whether the fasteners are male or female, the tool often slips on the head. The reason for this may be: tool or fastener wear, tool or fastener corrosion, overtorquing of the fastener, head damage of the fastener.

Disclosure of Invention

The present invention is a screwdriver bit design that substantially eliminates slippage. The design of the present invention comprises several parts. The integral action of these portions may engage the head of the fastener, thereby effectively transferring torque between the driver head and the fastener head. Conventional bolt drivers may use tools and drill holes that are not otherwise needed. The present invention avoids these problems. With the development of power screwdrivers and power drills, it has become common to use power tools to apply torque to remove fasteners. The present invention provides a dual head screwdriver bit that can apply torque to a fastener clockwise or counterclockwise to lock or unlock the fastener. Most driver bits have a standard one-quarter inch hex shaped gripping end and also include, but are not limited to, square, hex, or star shaped driving ends.

Drawings

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

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

Fig. 3 is a top view of the embodiment of fig. 2.

Fig. 4 is a bottom view of the embodiment of fig. 2.

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

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

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

[ description of main reference symbols ]

1 screwdriver head body

2 side wall

3 first side edge

4 second side edge

5 side surface

6 combination points

9 first base plane

10 second base plane

11 rotating shaft

12 first distance

13 second distance

14 attachment structure body

15 combination hole

16 first screwdriver head body

17 second screwdriver bit body

18 intermittent side wall

19 first point

20 second hole.

Detailed Description

First, it is to be specifically explained that: the drawings used in this specification are for the purpose of illustrating certain embodiments of the invention only and are not intended to limit the scope of the invention to those drawings.

The present invention relates to accessories for torque tools, and more particularly to a multi-point socket driver bit, which is a screw driver bit or screw driver bit. Compared with other conventional screwdriver bits with similar size, the present invention can apply larger torque to the fastener without damaging the fastener head or the screwdriver bit 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 fastener. The present invention is a socket driver head that is compatible with a variety of torque tools, including: conventional power drills, screwdrivers that can receive a driver bit, socket wrenches, and socket drivers, but these torque tools are not limited to the torque tools described above.

Please refer to fig. 1, which is a simplest embodiment of the present invention. In one embodiment, the present invention comprises: at least one screwdriver bit body 1. The screwdriver bit body 1 is a shank that can be combined with socket fasteners, such as: socket screws and socket screw rods to quickly apply torque to the socket fastener. The screwdriver bit body 1 further comprises: a plurality of side walls 2, a first base 9, and a second base 10. Generally, the screwdriver bit body 1 is a prism body made of high-strength metal. The plurality of side walls 2 are coupled to the socket fastener so as to effectively transmit torque from the torque tool to the socket fastener. The first base 9 and the second base 10 are opposite to each other with the plurality of side walls 2 therebetween, and the first base 9 and the second base 10 are perpendicular to the plurality of side walls 2 to form the prismatic screwdriver bit body 1.

Please refer to fig. 3 and fig. 4. Each sidewall 2 further comprises: a first side edge 3, a second side edge 4, a side surface 5, and at least one engagement cavity 6. The side walls 2 radially surround a rotational axis 11 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 varies with the socket fastener shape to complement the shape of the socket fastener. In one embodiment of the invention, the number of side walls 2 is 6, and the cross-section of the screwdriver bit body 1 is a hexagon. In another embodiment of the invention, the number of side walls 2 is 4, and the cross-section of the screwdriver bit body 1 is a quadrangle.

The side 5 abuts against the side wall of the socket fastener, in particular the head of the socket fastener. The first side edge 3 and the second side edge 4 are opposed to each other via a side face 5. The first side edge 3 and the second side edge 4 form corners of the screwdriver bit body 1 when viewed from the top or bottom. The engagement cavity 6 is recessed into the side 5, thus creating additional gripping points or gripping teeth on the side 5. The additional clamping points are created at the bonding pocket 6 and the adjacent side edge, which may be the first side edge 3 or the second side edge 4, particularly the side edge closest to the bonding pocket 6. The engagement cavity 6 extends from the first base surface 9 towards the second base surface 10 on the screwdriver bit body 1. And the bonding pockets 6 taper from the first base surface 9 towards the second base surface 10. Thus, the additional clamping point extends in the longitudinal direction of the screwdriver bit body 1, so that the maximum clamping coupling force between the coupling cavity 6 and the socket fastener can be obtained. In a preferred embodiment, the engagement cavity 6 has a semi-circular cross-section. This semi-circular cross-section allows the screwdriver bit body 1 to have no or few high stress points, thus increasing the overall tool life. In other embodiments of the invention, the bonding pocket 6 may have a cross-section of other shapes. Other shapes of profiles include, but are not limited to: semi-square, semi-rectangular, and semi-elliptical cross-sections.

In a preferred embodiment of the invention, the engagement cavity 6 is arranged to transmit torque forces most efficiently, in particular with the engagement cavity 6 located at a first distance 12 from the first side edge 3. At the same time, the engagement cavity 6 is located a second distance 13 from the second side edge 4. The most efficient transmission of torque occurs when the ratio of the first distance 12, the second distance 13, and the width of the coupling cavity 6 is 1:5: 4.

The proportions of the first distance 12, the second distance 13, and the width 8 of the bonding pocket 6 may be varied to achieve either a clockwise or counterclockwise design. FIG. 1 shows an embodiment of the present invention for a clockwise screwdriver bit. In this embodiment, the first distance 12 is less than the second distance 13. The design of the present invention for gripping and applying torque to a socket fastener in a clockwise direction is achieved when the ratio of the first distance 12, the second distance 13, and the width of the engagement cavity 6 is 1:5: 4. This design is used to screw in or secure socket fasteners. In another embodiment, the present invention is designed as a counterclockwise screwdriver bit. In this embodiment, the first distance 12 is greater than the second distance 13. The design of the present invention for gripping and applying torque to a socket fastener in a counterclockwise direction is achieved when the ratio of the first distance 12, the second distance 13, and the width of the engagement cavity 6 is 5:1: 4. This design is used to loosen or remove the socket fastener.

Please refer to fig. 5. In one embodiment, the present invention further comprises a plurality of intermittent sidewalls 18. Each intermittent side wall 18 is a flat surface that incorporates a socket fastener that functions like a conventional screwdriver head design. A plurality of intermittent side walls 18 radially surround the rotational axis 11 of the screwdriver bit body 1. A plurality of intermittent sidewalls 18 are interposed between the plurality of sidewalls 2. Thus, the plurality of intermittent side walls 18 and the plurality of side walls 2 are alternately distributed in the radial direction of the screwdriver bit body 1.

The present invention further comprises an attachment structure that allows an external torque tool to be attached to the screwdriver bit body 1 and transmit torque to the socket fastener through the screwdriver bit body 1. Please refer to fig. 1. The present invention further includes an attachment structure body 14. The attachment configuration bodies 14 are 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 configuration body 14 is connected to the second base surface 10. The preferred cross-sectional shape of the attachment formation body 14 is hexagonal for mounting to a female attachment formation (attachment hole) of an external torque tool, including but not limited to: electric drills, torque wrenches, pneumatic drills, and socket screwdrivers.

Please refer to fig. 6. In one embodiment, the present invention further comprises a combination hole 15. The engagement hole 15 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 15 penetrates the attachment configuration body 14 and is opposite to the screwdriver bit body 1. The coupling hole 15 is shaped to receive the male attachment formation of the socket wrench. The shape of the coupling aperture 15 is preferably square, as most socket wrenches use a square attachment configuration. In this embodiment, the attachment formation body 14 is preferably cylindrical in shape. In other embodiments, the shape of the coupling hole 15 and the attachment structure body 14 may vary depending on the design of the torque tool and the method of attachment.

Please refer to fig. 2. In one embodiment, the present invention is manufactured as a double-ended screwdriver bit, which provides both clockwise and counterclockwise screwdriver bit bodies 1. In this embodiment, the screwdriver bit body 1 includes: a first screwdriver bit body 16 and a second screwdriver bit body 17. The attachment formation body 14 is preferably hexagonal in cross-section. The attachment structure body 14 is centered on the rotational axis 11 of the first screwdriver bit body 16 and is distributed along the rotational axis 11 of the first screwdriver bit body 16. Therefore, the rotation axis 11 of the attachment structure body 14 completely overlaps with the rotation axis 11 of the first screwdriver bit body 16. The attachment formation body 14 is connected to the second base surface 10 of the first screwdriver bit body 16. The second screwdriver bit body 17 is concentric with the first screwdriver bit body 16 and the shared attachment structure body 14, and the second screwdriver bit body 17 is concentric with the first screwdriver bit body 16. Similar to the design of a conventional double-ended screwdriver bit, the second screwdriver bit body 17 is connected to the attachment formation body 14 and opposite the first screwdriver bit body 16. The attachment structure body 14 is connected to the second base face 10 of the second screwdriver bit body 17, like the first screwdriver bit body 16. This embodiment forms the screwdriver bit body 1 at either end of both ends of the attachment structure body 14. The first screwdriver bit body 16 is used to rotate the socket fastener in a clockwise direction, that is, the first screwdriver bit body 16 is a clockwise version of the screwdriver bit body.

Please refer to fig. 3. The second distance 13 of the first screwdriver bit body 16 is greater than the first distance 12 of the first screwdriver bit body 16. As such, the additional clamping point of the first screwdriver bit body 16 is adjacent to the first side edge 3 of the first screwdriver bit body 16. The second screwdriver bit body 17 is used to loosen or remove the socket fastener from the counterclockwise direction, that is, the second screwdriver bit body 17 is a counterclockwise screwdriver bit body. Please refer to fig. 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. As such, the additional clamping point of the second screwdriver bit body 17 is adjacent to the second lateral edge 4 of the second screwdriver bit body 17.

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

Please refer to fig. 7. In one embodiment, the present invention is manufactured as a screwdriver bit with a spherical end point. In this embodiment, each side 5 of the plurality of sidewalls 2 is concave. Thus, the entire screwdriver bit body 1 is formed in a spherical shape. This embodiment allows the user to use a certain angle for engaging the socket fastener, particularly for fasteners that are not easily constructed.

The invention has been described above by way of examples, but it should be understood that: these implementation routines are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Any modification or variation which does not depart from the spirit of the invention will still be included within the scope of the invention.

Claims

1. A multi-pinch point socket driver bit comprising:

At least one screwdriver head 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 combination 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 opposite to each other across the side surface;

wherein the at least one bonding hole is recessed into the side surface;

wherein the at least one combination hole extends from the first base surface toward the second base surface on the at least one screwdriver bit body;

Wherein the at least one bonding hole is a first distance from the first side edge;

Wherein the at least one bonding hole is a second distance away from the second side edge;

Wherein the first distance is greater than the second distance, or the second distance is greater than the first distance;

The ratio of the first distance, the second distance, and the width of the at least one bonding hole is 1:5:4 or 5:1:4;

Wherein the at least one bonding hole tapers from the first base surface toward the second base surface;

The cross section of the at least one bonding hole is semicircular.

2. The multi-pinch point socket driver bit of claim 1, further comprising:

an attached structural body; and

a binding hole;

Wherein the center of the attached structural 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;

Wherein the coupling hole penetrates the attachment structure body and is opposite to the at least one screwdriver bit body.

3. The multi-pinch point socket driver bit of claim 1, further comprising:

an attached construct;

Wherein the attachment structure body is connected to the second base surface.

4. The multi-pinch point socket driver bit of claim 1, further comprising:

an attached construct;

The screwdriver bit body further comprises: 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 concentric with the first screwdriver bit body;

wherein the second screwdriver bit body is connected to the attachment structure body and is opposite to the first screwdriver bit body;

wherein 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 the first distance of the first screwdriver bit body;

Wherein the first distance of the second screwdriver bit body is greater than the second distance of the second screwdriver bit body.

5. The multi-pinch socket bit of claim 1, wherein

The at least one screwdriver bit body further includes: a plurality of intermittent side walls;

The plurality of intermittent side walls radially surround the axis of rotation;

The plurality of intermittent side walls are interspersed between the plurality of side walls.

6. The multi-pinch socket bit of claim 1, wherein

Each of the at least one combination hole 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.

7. The multi-pinch socket driver bit of claim 1, wherein the first distance is greater than the second distance.

8. The multi-pinch socket driver bit of claim 1, wherein the second distance is greater than the first distance.

9. The multi-pinch socket bit of claim 1, wherein the side surface of each of the plurality of side walls is a concave surface.