TW201300201A - Hexagonal ball-headed wrench - Google Patents

Abstract

The present invention provides a hexagonal ball-headed wrench, which has an end forming a ball-headed end. The ball-headed end functions for driving an object to be driven. The ball-headed end has a virtual operation section that is engageable with the object to be driven. The ball-headed end comprises a first arcuate face and the first arcuate face comprises at least one recess and at least one engaging section. The recess is adjacent to the engaging section. The engaging section is coplanar with the virtual operation section. The recess is in a condition of being recessed with respect to the virtual operation section. The engaging section enhances the friction between the ball-headed end and the object to be driven.

Description

Hexagon ball head wrench

The invention mainly discloses a hexagonal wrench, in particular a hexagonal ball end wrench.

Please refer to China Patent Certificate No. M284495 "Hexagonal Wrench". One end of the wrench forms a ball head, and a ring neck is formed on the inner side of the inner side of the adjacent ball head. The outer circumference of the ball head is formed into a hexagonal surface. And one or more of the hexagonal surfaces are provided with an accommodating groove, the notch of the accommodating groove is slightly smaller than the groove body, and a spring is sequentially arranged inside and outside, and an inner side is pushed by the spring and the outer side is exposed. The small steel ball; the structure of the small steel ball surface is smooth and elastic, and it has the function of convenient access when the ball head is obliquely inserted into the hexagonal hole of the screw lock, and the small steel ball can fill the hexagonal hole due to the wear and tear. The space makes it more labor-saving and makes it difficult to wear the hexagonal hole.

The aforementioned patent is provided on the hexagonal hole by the spring and the small steel ball, so that the ball head can be engaged with the hexagonal hole. Such a design must process a receiving groove in the hexagonal surface of the ball head and assemble the spring and the small steel ball in the receiving groove. Compared to the traditional hexagonal ball end wrench, there are more procedures for processing the accommodating groove, preparing the spring and the small steel ball, and assembling. Therefore, such a design has a lack of cost and a slow processing speed.

Moreover, the design of the spring and the small steel ball on the hexagonal hole does not really improve the slippage problem of the hexagonal surface and the hexagonal hole. The hexagonal wrench only has a single set of springs and small steel balls, so only one single surface can be provided. With a better top effect, the top of the small steel ball does not completely solve the lack of slip.

The small steel ball is placed on the hexagonal hole in a point contact manner. When the hexagonal wrench is used at a certain angle and inclined to the hexagonal hole, the small steel ball is likely to be separated from the hexagonal hole, and the small steel ball cannot be set up with the hexagonal hole.

In view of the above-described deficiencies in the conventional structure, the inventors have invented a hexagonal ball-end wrench that overcomes all of the above-described disadvantages of the conventional structure.

The present invention is intended to address the deficiencies of the prior art and provides a hexagonal ball-end wrench that addresses the shortcomings of the prior art.

The hexagonal ball-end wrench of the present invention has a ball-end end formed at one end thereof, the ball-end end being capable of driving a member to be driven, the ball-end end having a virtual working portion, the virtual working portion being capable of contacting the member to be driven, the ball end The first curved surface includes at least one concave portion and at least one occlusal portion adjacent to the occlusal portion, the occlusal portion being coplanar with the virtual working portion, the concave portion being compared with the virtual portion The working portion has a concave shape, and the engaging portion can increase the friction between the ball end and the member to be driven.

The main technical improvement of the present invention is that by rotating the ball end of the hexagonal ball end wrench, the two engaging surfaces of the engaging portion can be applied to the driving hole to achieve better occlusion. The recess can increase the number of contact faces of the nip portion and the drive hole to improve the slippage problem.

The technical improvement of the secondary improvement of the present invention is that the number of contact faces is increased by the concave portion and the occlusal portion, and the concave portion and the occlusal portion can be directly processed, and the hexagonal ball-end wrench can meet the cost without additional installation of other components. The processing speed requirement, the invention has the advantages of lower cost and faster assembly and processing speed than the conventional hexagonal ball end wrench.

Another technical means for improvement of the present invention is that a plurality of engaging portions are provided by the ball end, so that when the sliding engaging portion is separated from the driving hole, other engaging portions can be attached to the driving hole. Since the plurality of contact faces of the occlusal portion are applied to the drive hole, the effect of better occlusion can be achieved.

Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.

The three preferred embodiments of the present invention are described in detail with reference to the accompanying drawings, which are for illustrative purposes only, and are not limited by the structure.

1 to 4 are a perspective view and a cross-sectional view of a hexagonal ball-end wrench according to a first embodiment of the present invention. The hexagonal ball-end wrench of the present invention has a ball end 1 formed at one end thereof, and the ball end 1 is capable of driving a member 2 to be driven, the ball end 1 having a virtual working portion S capable of being driven Contact 2, the ball end 1 includes a first curved surface 11 forming at least one recess a and at least one nip b adjacent to the nip b, in this embodiment The nip b surrounds the recess a, and the recess a and the nip b are directly integrally formed on the ball end 1 , and the recess a can be forged, pressed, cut, milled, sawed or boring... The processing method is formed. The occlusal portion b is coplanar with the virtual working portion S, and the concave portion a is concave compared to the virtual working portion S, and the nip portion b can increase the friction between the ball end 1 and the member to be driven 2 .

The hexagonal ball-end wrench forms a trigger end 3 opposite to the end of the ball-end end 1, and a neck portion 4 is formed between the ball-end end 1 and the trigger end 3. The triggering end 3 can be in a straight shape, and the triggering end 3 can also be in an L shape.

The ball end 1 further includes a second curved surface 12, a third curved surface 13, a fourth curved surface 14, a fifth curved surface 15 and a sixth curved surface 16. The first curved surface 11 is adjacent to the second curved surface 12, and the second curved surface 12 is adjacent to the third curved surface 13 . The third curved surface 13 is adjacent to the fourth curved surface 14 , and the fourth curved surface 14 is adjacent to the The fifth curved surface 15 is adjacent to the sixth curved surface 16 , and the sixth curved surface 16 is adjacent to the first curved surface 11 .

The ball end 1 further includes an end portion 17 located at an end away from the neck portion 4, the end portion 17 connecting the first curved surface 11, the second curved surface 12, and the third curved surface 13 The fourth curved surface 14, the fifth curved surface 15, and the sixth curved surface 16 can be formed into a planar shape or a dot shape. In the present embodiment, the end portion 17 is surfaced. shape.

The first curved surface 11 includes a first end 111, a second end 112, a first side 113 and a second side 114. The first end 111 is adjacent to the end portion 17, and the second end 112 is away from the end. The first side 113 is adjacent to the sixth curved surface 16 , and the second side 114 is adjacent to the second curved surface 12 .

In this embodiment, the recessed portion a is elongated, and the two ends of the recessed portion a are located between the end portion 17 and the neck portion 4. The two ends of the recessed portion a face the first end of the first curved surface 11 respectively. 111 and the second end 112 of the first curved surface 11.

The recess a comprises two bevels a1 and a bottom a2, the bottom a2 being situated between the two bevels a1. In the embodiment, the bottom a2 is oblique, and the bottom a2 can also be arcuate.

The ball end 1 of the hexagonal ball end wrench is disposed on the driving hole 201 of the member to be driven 2, and the recess a allows the ball end 1 to swing a certain angle with respect to the member to be driven 2 and drive the member 2 to be driven. The two ends of the recess a are respectively facing the first end 111 and the second end 112 of the first curved surface 11. The length of the recess a extending toward the first end 111 and the second end 112 is opposite to the ball end 1 The angle at which the driving member 2 is swung is proportional, and the longer the length of the recess a, the larger the angle at which the ball end 1 can swing relative to the member to be driven 2. In some special cases, the hexagonal ball-end wrench cannot vertically drive the to-be-driven member 2, and the hexagonal ball-end wrench must be placed obliquely in the driving hole 201 of the member to be driven 2. The hexagonal ball-end wrench can satisfy the purpose of obliquely driving the to-be-driven member 2 by using the ball-end end 1, and the ball-end end 1 can surely drive the to-be-driven member 2 by the length of the recess a.

The ball-end end 1 of the hexagonal ball-end wrench is provided with a maximum outer diameter d, the recess a passes through the maximum outer diameter d, and the recess a and the maximum outer diameter d can provide a vertical drive of the ball end 1 To be driven 2 .

The hexagonal ball-end wrench vertically drives the to-be-driven member 2, and the end portion 17 of the ball-end end 1 is attached to the bottom portion 202 of the driving hole 201 of the to-be-driven member 2, the first curved surface 11 of the ball-end end 1 The second curved surface 12, the third curved surface 13, the fourth curved surface 14, the fifth curved surface 15, and the sixth curved surface 16 correspond to the wall surface 203 of the driving hole 201 of the member 2 to be driven. The hexagonal ball-end wrench has the first curved surface 11, the second curved surface 12, the third curved surface 13, the fourth curved surface 14, the fifth curved surface 15, the sixth curved surface 16 and the maximum The outer diameter d is engaged with the drive hole 201.

When the hexagonal ball-end wrench is rotated, the first curved surface 11 of the ball-end end 1 drives the driving member 2 to rotate. The recess a of the first curved surface 11 of the ball end 1 enables the engaging portion b to be engaged with the driving hole 201.

When the ball end 1 of the hexagonal ball end wrench is initially rotated, the nip portion b of the first curved surface 11 and the driving hole 201 have two contact faces. When the ball end 1 of the hexagonal ball end wrench is rotated, since the two contact faces of the engaging portion b are biased to the driving hole 201, a better occlusion effect can be achieved. The recess a can increase the number of contact faces of the nip b and the drive hole 201 to improve the slippage problem.

The hexagonal ball-end wrench of the present invention increases the number of contact faces by the recess a and the nip b, and the recess a and the nip b of the first curved surface 11 can be directly processed, and the hexagonal ball-end wrench does not need to be additionally installed. Other components can meet the requirements of cost and processing speed. Compared with the conventional hexagonal ball-end wrench, the invention has the advantages of low cost and no need for assembly and processing speed.

The recess a can also be formed in a dot shape or a circular recess shape, and can be formed by forging, pressing, digging or chiseling in a dot shape or a circular depression shape. a concave portion a which is formed in a dot shape or a circular concave shape is disposed at a centering position of the first curved surface 11 , and the hexagonal ball-end wrench having a concave portion a in a dot shape or a circular concave shape drives the driving member 2 to rotate. The occlusal portion b can apply the two contact surfaces to the driving hole 201 to achieve better occlusion.

The concave portion a can also be formed in a diagonal shape, and the concave portion a having a diagonal shape can be formed by machining such as forging, pressing, cutting, milling, sawing, or boring. One end of the obliquely shaped recess a faces the first end 111 of the first curved surface 11 and the first side 113, and the other end of the obliquely shaped recess a faces the second end 112 of the first curved surface 11 When the hexagonal ball-end wrench of the oblique-shaped recess a is driven to rotate the to-be-driven member 2, the engaging portion b can be biased to the driving hole 201 by two contact surfaces, thereby achieving better The effect of bite.

The concave portion a can also be formed in a staggered oblique shape, and the concave portion a having a staggered diagonal shape can be formed by machining such as forging, pressing, cutting, milling, sawing, or boring. When the hexagonal ball-end wrench in the staggered concave portion a drives the to-be-driven member 2 to rotate, the engaging portion b can apply the two contact surfaces to the driving hole 201 to achieve better occlusion.

5 to 9 are schematic views of a hexagonal ball-end wrench according to a second embodiment of the present invention. The hexagonal ball-end wrench of the second embodiment differs from the first embodiment in the first curved surface 11, the second curved surface 12, the third curved surface 13, the fourth curved surface 14, and the fifth arc of the second embodiment. The surface 15 and the sixth curved surface 16 are formed with a plurality of concave portions a and a plurality of engaging portions b, the concave portion a being adjacent to the engaging portion b, the engaging portion b being coplanar with the virtual working portion S, the concave portion a phase Compared with the virtual working portion S, the nip portion b can increase the friction between the ball end 1 and the member to be driven 2 .

The first curved surface 11 of the second embodiment has a total of eleven concave portions a and twelve engaging portions b. In the embodiment, the concave portion a and the engaging portion b are arranged in parallel. A specific number of the two ends of the plurality of recesses a are respectively directed toward the first end 111 of the first curved surface 11 and the second end 112 of the first curved surface 11 and connected to the first surface of the first curved surface 11 The end 111 is opposite the second end 112 of the first curved surface 11. The other specific ends of the plurality of recesses a are respectively directed toward the first side 113 of the first curved surface 11 and are connected to the first side 113 of the first curved surface 11. The other specific plurality of ends of the plurality of recesses a are respectively directed toward the second side 114 of the first curved surface 11 and connected to the second side 114 of the first curved surface 11. Each of the concave portions a of the first curved surface 11 is parallel, and the distance between each concave portion a of each curved surface 11 is equal, and the distance between the concave portions a of each of the first curved surfaces 11 can also be equal.

The number of the concave portion a and the nip portion b of the second curved surface 12, the third curved surface 13, the fourth curved surface 14, the fifth curved surface 15 and the sixth curved surface 16 of the second embodiment are the same as those of the embodiment. A curved surface 11.

FIG. 10 and FIG. 11 are schematic diagrams showing the hexagonal ball-end wrench of the present invention vertically driving the to-be-driven member. The ball end 1 of the hexagonal ball end wrench is disposed on the driving hole 201 of the member to be driven 2, and the recess a allows the ball end 1 to swing a certain angle with respect to the member to be driven 2 and drive the member 2 to be driven. The two ends of the recess a are respectively facing the first end 111 and the second end 112 of the first curved surface 11 , and the length of the recess a extending toward the first end 111 and the second end 112 is related to the ball end 1 The longer the length of the recess a is, the larger the angle at which the ball end 1 can swing relative to the member to be driven 2, with respect to the angle at which the member to be driven 2 is swung. In the embodiment, the recess a connects the first end 111 and the second end 112 of the first curved surface 11 , and the recess a can provide the maximum angle at which the ball end 1 swings relative to the member to be driven 2 .

The ball-end end 1 of the hexagonal ball-end wrench is provided with a maximum outer diameter d, the recess a passes through the maximum outer diameter d, and the recess a and the maximum outer diameter d can provide a vertical drive of the ball end 1 To be driven 2 . The ball end 1 of the hexagonal ball-end wrench is disposed on the driving hole 201 of the to-be-driven member 2, and the end portion 17 of the ball-end end 1 is attached to the bottom portion 202 of the driving hole 201 of the member to be driven 2, the ball-end end 1 The first curved surface 11, the second curved surface 12, the third curved surface 13, the fourth curved surface 14, the fifth curved surface 15, and the sixth curved surface 16 correspond to the driving of the member to be driven 2 The wall surface 203 of the hole 201. The hexagonal ball-end wrench has the first curved surface 11, the second curved surface 12, the third curved surface 13, the fourth curved surface 14, the fifth curved surface 15, the sixth curved surface 16 and the maximum The outer diameter d is engaged with the drive hole 201.

When the hexagonal ball-end wrench is rotated, the ball-end end 1 drives the driving member 2 to rotate, and the concave portion a of the ball-end end 1 enables the engaging portion b to engage with the driving hole 201.

When the ball end 1 of the hexagonal ball end wrench is initially rotated, a plurality of contact faces are formed between the engaging portion b of the ball end 1 and the driving hole 201. When the ball end 1 of the hexagonal ball end wrench is rotated, the originally attached nip b may form a slip. At this time, since the ball end 1 of the embodiment is provided with a plurality of nips b, when slipping When the nip portion b is separated from the drive hole 201, another nip portion b can be attached to the drive hole 201. Since a plurality of contact faces of the nip b are applied to the drive hole 201, a better occlusion effect can be achieved. The recess a can increase the number of contact faces of the nip b and the drive hole 201 to improve the slippage problem.

The hexagonal ball-end wrench of the present invention improves the slipping problem by the concave portion a and the engaging portion b, and the concave portion a and the engaging portion b of the ball-end end 1 can be directly processed, and the hexagonal ball-end wrench does not need to be additionally installed with other components. The invention can meet the requirements of cost and processing speed, and the invention has the advantages of lower cost and faster assembly and processing speed than the conventional hexagonal ball-end wrench.

Referring to Figures 12 and 13, a schematic view of the hexagonal ball-end wrench of the present invention tiltingly driving the member to be driven is shown. In some special cases, the hexagonal ball-end wrench cannot vertically drive the to-be-driven member 2, and the hexagonal ball-end wrench must be placed obliquely in the driving hole 201 of the member to be driven 2. The hexagonal ball-end wrench can satisfy the purpose of obliquely driving the to-be-driven member 2 by using the ball-end end 1, and the ball-end end 1 can surely drive the to-be-driven member 2 by the length of the recess a.

When the ball end 1 is obliquely inserted into the driving hole 201 of the to-be-driven member 2, when the hexagonal ball-end wrench is rotated, the concave portion a of the ball-end end 1 can correspond to the driving hole 201 of the member to be driven 2, and the engaging portion b can drive the driving member 2 to rotate, and the engaging portion b of the ball end 1 has a plurality of contact faces with the driving hole 201.

The first curved surface 11 of the ball end 1 , the second curved surface 12 , the third curved surface 13 , the fourth curved surface 14 , the fifth curved surface 15 , and the sixth curved surface 16 (see In the first part, the first curved surface 11 is provided with the concave portion a and the engaging portion b, and the concave portion a is adjacent to the second end 112, so that the ball end 1 can be adjacent to the concave portion a of the second end 112. The nip portion b is engaged with the driving hole 201 of the member to be driven 2 .

When the ball end 1 of the hexagonal ball end wrench is rotated, the originally attached nip b may form a slip. At this time, since the ball end 1 of the embodiment is provided with a plurality of nips b, when slipping When the nip portion b is separated from the drive hole 201, another nip portion b can be attached to the drive hole 201. Since a plurality of contact faces of the nip b are applied to the drive hole 201, a better occlusion effect can be achieved. The recess a can increase the number of contact faces of the nip b and the drive hole 201 to improve the slippage problem.

14 and FIG. 15 are schematic diagrams of a to-be-driven member for driving an abnormal driving hole of a hexagonal ball-end wrench according to the present invention. The hexagonal ball-end wrench of the present invention can be used for the abnormal driving hole 501, and the hole shape of the abnormal driving hole 501 is deformed instead of the regular hexagonal hole shape. The ball end 1 of the hexagonal ball-end wrench is disposed on the abnormal driving hole 501 of the to-be-driven member 5, and the end portion 17 of the ball-end end 1 is attached to the bottom portion 502 of the abnormal driving hole 501 of the member to be driven 5, the ball head The end 1 corresponds to the wall surface 503 of the abnormal drive hole 501 of the member 5 to be driven. When the hexagonal ball-end wrench is rotated, the ball-end end 1 drives the abnormal driving hole 501 of the driving member 5 to rotate. The concave portion a of the ball end 1 enables the engaging portion b to be engaged with the abnormal driving hole 501.

The ball-end end 1 of the hexagonal ball-end wrench extends into the abnormal driving hole 501. When the ball-end end 1 of the hexagonal ball-end wrench is rotated, the ball-end end 1 has at least the first curved surface 11 and the second arc. The surface 12 is attached to the wall surface 503 of the abnormal driving hole 501. The concave portion a of the first curved surface 11 enables the engaging portion b to be engaged with the abnormal driving hole 501. The concave portion a of the second curved surface 12 enables the engaging portion b to Engaging in the abnormal drive hole 501, the recess a can increase the number of contact faces of the nip b and the abnormal drive hole 501 to improve the slippage problem.

16 and FIG. 17 and FIG. 18 are schematic perspective views and a schematic view of a hexagonal ball-end wrench according to a third embodiment of the present invention. The hexagonal ball-end wrench of the third embodiment differs from the second embodiment in the number of the recesses a and the nips b of the ball-end end 1, and the first curved surface 11 of the third embodiment is provided with six recesses a and Seven occlusal parts b. And the distance between each of the recesses a of the third embodiment is not all equal.

The ball-end end 1 of the hexagonal ball-end wrench protrudes into the driving hole 201. When the ball-end end 1 of the hexagonal ball-end wrench is rotated, the concave portion a attached to the driving hole 201 enables the engaging portion b to be engaged with the driving The hole 201, the recess a can increase the number of contact faces of the nip b and the drive hole 201 to improve the slippage problem.

As far as the above is concerned, it can be concluded that the present invention has the following advantages:

1. The hexagonal ball-end wrench of the present invention, when the ball end of the hexagonal ball-end wrench is rotated, the two contact surfaces of the nip portion are applied to the driving hole to achieve better occlusion. The recess can increase the number of contact faces of the nip portion and the drive hole to improve the slippage problem.

2. The "hexagonal ball-end wrench" of the present invention increases the number of contact faces by the concave portion and the occlusal portion, and the concave portion and the occlusal portion can be directly processed, and the hexagonal ball-end wrench can satisfy the cost without additionally installing other components. Compared with the conventional processing speed, the present invention has the advantages of lower cost and faster assembly and processing speed than the conventional hexagonal ball-end wrench.

3. The "hexagonal ball-end wrench" of the present invention has a plurality of engaging portions at the ball end, so that when the slipping engagement portion is separated from the driving hole, other engaging portions can be attached to the driving hole. Since the plurality of contact faces of the occlusal portion are applied to the drive hole, the effect of better occlusion can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

1. . . Ball end

11. . . First curved surface

a. . . Concave

b. . . Occlusal

A1. . . Bevel

A2. . . bottom

111. . . First end

112. . . Second end

113. . . First side

114. . . Second side

12. . . Second curved surface

13. . . Third curved surface

14. . . Fourth arc surface

15. . . Fifth arc surface

16. . . Sixth curved surface

17. . . Ends

S. . . Virtual work department

d. . . Maximum outer diameter

2. . . Driver to be driven

201. . . Drive hole

202. . . bottom

203. . . Wall

3. . . Trigger end

4. . . neck

5. . . Driver to be driven

501. . . Abnormal drive hole

502. . . bottom

503. . . Wall

Figure 1 is a perspective view of a hexagonal ball-end wrench of a first embodiment of the present invention.

2 is a cross-sectional view of the hexagonal ball-end wrench of the first embodiment of the present invention vertically driving the to-be-driven member, and the hexagonal ball-end wrench is vertically disposed on the member to be driven.

Figure 3 is a cross-sectional view showing the hexagonal ball-end wrench of the first embodiment of the present invention vertically driving the to-be-driven member, and the head end of the ball is disposed on the driving hole.

Fig. 4 is a cross-sectional view showing the hexagonal ball-end wrench of the first embodiment of the present invention vertically driving a member to be driven, and showing the rotation of the head end of the ball.

Figure 5 is a perspective view of a hexagonal ball-end wrench according to a second embodiment of the present invention.

Figure 6 is a partial enlarged view of a hexagonal ball end wrench according to a second embodiment of the present invention.

Figure 7 is a front elevational view of a hexagonal ball-end wrench of a second embodiment of the present invention.

Figure 8 is a left side view of a hexagonal ball end wrench of a second embodiment of the present invention.

Figure 9 is a schematic view showing the hexagonal ball-end wrench of the second embodiment of the present invention for vertically driving the to-be-driven member. The hexagonal ball-end wrench is vertically disposed on the member to be driven.

Figure 10 is a cross-sectional view showing the hexagonal ball-end wrench of the second embodiment of the present invention vertically driving the to-be-driven member, and the head end of the ball is disposed on the driving hole.

Figure 11 is a cross-sectional view showing the hexagonal ball-end wrench of the second embodiment of the present invention vertically driving a member to be driven, and showing the rotation of the head end of the ball.

Figure 12: Schematic diagram of the hexagonal ball-end wrench of the present invention tiltingly driving the member to be driven.

Figure 13 is a schematic view showing the hexagonal ball-end wrench of the present invention tilting at another angle to drive the member to be driven.

Figure 14 is a schematic view of the to-be-driven member for driving the abnormal driving hole of the hexagonal ball-end wrench of the present invention, and the hexagonal ball-end wrench is vertically disposed on the to-be-driven member.

Figure 15 is a schematic view of the to-be-driven member for driving the abnormal driving hole of the hexagonal ball-end wrench of the present invention, and the head end of the ball is disposed on the driving hole.

Figure 16 is a perspective view showing the hexagonal ball-end wrench of the third embodiment of the present invention.

Figure 17 is a schematic view showing the use of a hexagonal ball-end wrench according to a third embodiment of the present invention, wherein the head end of the ball is disposed in the driving hole.

Figure 18 is a schematic view showing the use of the hexagonal ball-end wrench of the third embodiment of the present invention, showing the rotation of the head end of the ball.

1. . . Ball end

11. . . First curved surface

a. . . Concave

b. . . Occlusal

A1. . . Bevel

A2. . . bottom

111. . . First end

112. . . Second end

113. . . First side

114. . . Second side

12. . . Second curved surface

13. . . Third curved surface

14. . . Fourth arc surface

15. . . Fifth arc surface

16. . . Sixth curved surface

17. . . Ends

S. . . Virtual work department

3. . . Trigger end

4. . . neck

Claims (10)

A hexagonal ball-end wrench, one end of which forms a ball-end end, the ball-end end is capable of driving a to-be-driven member, the ball-end end having a virtual working portion, the virtual working portion being capable of contacting the member to be driven, the ball-end end including a first curved surface, the first curved surface forming at least one concave portion and at least one occlusal portion adjacent to the occlusal portion, the occlusal portion being coplanar with the virtual working portion, the concave portion being compared to the virtual work The portion is concave, and the nip can increase the friction between the ball end and the member to be driven. The hexagonal ball-end wrench of claim 1, wherein the recess is directly integrally formed with the nip portion at the ball end. The hexagonal ball-end wrench of claim 1, wherein the ball end is provided with a maximum outer diameter, the recess passes through the maximum outer diameter, and the concave portion is adjacent to the maximum outer diameter to provide a vertical end of the ball end Drive the part to be driven. The hexagonal ball-end wrench of claim 1, wherein the first curved surface forms a plurality of recesses, and the distance between each of the recesses is not equal. The hexagonal ball-end wrench of claim 1, wherein the recess is arranged in parallel with the nip. The hexagonal ball-end wrench of any one of claims 1 to 5, wherein the first curved surface includes a first end and a second end, the recess is elongated, and the two ends of the recess are respectively facing a first end of the first curved surface and a second end of the first curved surface, the length of the concave portion being proportional to an angle at which the ball end is swung relative to the member to be driven. The hexagonal ball-end wrench of any one of claims 1 to 5, wherein the first curved surface comprises a first end, a second end, a first side and a second side, the recess being slanted One end of the obliquely-shaped concave portion is in contact with the first side toward the first end of the first curved surface, and the other end of the obliquely-shaped concave portion is connected to the second side toward the second end of the first curved surface At the office. The hexagonal ball-end wrench of any one of claims 1 to 4, wherein the recess has a staggered diagonal shape. The hexagonal ball-end wrench of any one of claims 1 to 4, wherein the recess is in the shape of a dot. The hexagonal ball-end wrench of any one of claims 1 to 4, wherein the recess has a circular recessed shape.