TWI838238B - Hand tool fitting structure - Google Patents

Abstract

The present invention relates to a hand tool sleeve structure, which includes: a body is provided with a sleeve, six driving parts, six receiving parts, two first arc surfaces, a second arc surface, a first radius, a second radius, a first distance and a third distance; the receiving part is in the shape of a concave arc surface, each receiving part is provided between each two first arc surfaces, and the receiving part forms a first circle and a third radius; the sleeve is provided with a first center at the axis of the sleeve, the first center forms a second circle, the second circle forms a first hexagon, and the first center is provided with a first vertical line; a second hexagon is provided with the first center as the axis, the second hexagon is smaller than the first hexagon and has six corners, and each corner is at the same position as the center of each first circle.

Description

Hand tool sleeve structure

The present invention is related to a hand tool sleeve structure, in particular to a hand tool sleeve structure, in which the outer diameter of the body and the sleeve will not wear the corner of the screw part, the sleeve has a better balance structure between the outer diameter and not wearing, the center of the first circle and the corner of the second hexagon are at the same position, the sleeve can be sleeved with the star-shaped screw to drive it, and is expandable.

As we know before, the commonly used hand tool sleeve structure, such as US patent case number: US2007/0125204A1, Taiwan patent application number: 093219645, certificate number: M270886, patent name: socket to prevent nut head from being damaged.

However, the defects of the joint structure of the hand tool used in this practice are:

1. Please refer to the fifth and seventh figures of the Gazette. When the sleeve 20 and the nut head 40 are fitted and rotated, the six oblique projections 24 are locked in the center of the six sides of the nut head 40 to drive the nut head 40 to rotate. The oblique projections 24 are protruding from the fitting hole 22. There is a large gap between the avoidance groove 23 of the fitting hole 22 and the corner end of the nut head 40. The fitting hole 22 is rotated. It should be difficult to wear the corner of the nut head 40. The more the oblique protrusion 24 protrudes, the lower the probability of wearing the corner of the nut head 40. However, if the oblique protrusion 24 is more protruding, the sleeve 20 needs to have a certain wall thickness to maintain its rotational torque. When the oblique protrusion 24 is protruding, the outer diameter of the sleeve 20 will increase. The more protruding the outer diameter of the sleeve 20 is, the larger the outer diameter of the sleeve 20 is.

2. The oblique projection 24 of the card is in a sharp angle shape, and the rotational torque of the oblique projection 24 of the card is relatively insufficient. Moreover, after the sleeve 20 rotates the nut head 40 for a period of time, the oblique projection 24 of the card may be worn into a rounded shape.

3. When the sleeve 20 rotates the nut head 40, the oblique projection 24 contacts the nut head 40. The oblique projection 24 is sharp and will cause bite marks on the nut head 40.

In addition, we have previously obtained exclusive authorization for the hand tool sleeve structure, Taiwan patent application number: 106214943, certificate number: M555783, patent name: Hand tool sleeve structure: a first body, the first body is provided with a first sleeve, the first sleeve includes six driving parts and six receiving parts, the driving parts and the receiving parts are arranged in a spaced ring shape; the driving part of the first body is in a convex arc shape, each The driving part includes two first arc surfaces and a second arc surface, the second arc surface is arranged at the center of the driving part, the second arc surface is arranged between the first arc surfaces, the second arc surface is more protruding than the first arc surface, so that the first arc surface is separated by the second arc surface to form two shapes, the radius of the first arc surface is the first radius, the radius of the second arc surface is the second radius, the first radius is larger than the second radius, and the first arc surface is tangent to a horizontal line and the second arc surface The first arc surface is tangent to a horizontal line and has a first distance, and the first distance is less than 0.5 mm; the accommodation portion is in a concave arc shape, each accommodation portion is arranged between each two first arc surfaces, and a first circle is formed in the accommodation portion, and the first circle is tangent to the first arc surface, and the relationship between the first circle and the first arc surface is equivalent to the relationship between the large convex arc surface and the small concave arc surface, and the accommodation portion is not tangent to the first arc surface, and the radius of the accommodation portion is The first circle is larger than the radius of the first circle; the first center of the first sleeve portion is provided at the axis center, the first center of the first circle forms a second circle, the outer circumference of the second circle forms a first hexagon, each second arc surface is tangent to the second circle and the side surface of the first hexagon, the first center of the first circle is provided with a first vertical line, the most protruding part of the second arc surface is located on the first vertical line, and the centers of the first arc surface and the second arc surface are also located on the first vertical line.

However, the defect of this patent case is that: as shown in the fifth figure of the publication, the first sleeve part 11 can only be sleeved with the hexagonal screw part 20 for rotation. Other parts such as the first sleeve part 11 and the star-shaped screw part are not in accordance with the specifications and cannot be sleeved and driven. The functionality and expandability of the old specification structure of the first sleeve part 11 are slightly insufficient.

In view of the defects of the hand tool sleeve joint structure in the above-mentioned conventional patent, the inventor, with many years of manufacturing experience, finally came up with a product of the hand tool sleeve joint structure that can solve the conventional disadvantages.

In the conventional hand tool fitting structure, the protrusion of the oblique projection is more prominent. In order to maintain the rotational torque of the sleeve, the sleeve needs to have a certain wall thickness. The oblique projection of the oblique projection will cause bite marks on the nut head. In the hand tool fitting structure of the present invention, the outer diameter of the body and the fitting part will not wear the corner end of the screw part. The fitting part has a better balance structure between the outer diameter and no wear. The center of the first circle is at the same position as the corner end of the second hexagon. The fitting part can fit the star-shaped screw part to drive it. The fitting part is expandable.

The present invention relates to a hand tool sleeve joint structure, which includes: a body is provided with a sleeve joint, six driving parts, six receiving parts, two first arc surfaces, a second arc surface, a first radius, a second radius, a first distance and a third distance; the receiving part is in the shape of a concave arc surface, each of the receiving parts is provided between each two first arc surfaces, and the receiving part forms a first circle and a third radius; a first circle center is provided at the axis of the sleeve joint, the first circle center forms a second circle, the second circle forms a first hexagon, and the first circle center is provided with a first vertical line; a second hexagon is provided with the first circle center as the axis, the second hexagon is smaller than the first hexagon and has six corners, and each corner is at the same position as the center of each first circle.

The second arc surface is slightly protruding from the first arc surface, so that the first arc surface and the second arc surface have the first distance, and the accommodating portion is provided, the first circle is formed in the accommodating portion, and the first circle is not tangent to the first arc surface, that is, the second arc surface is slightly protruding, and the accommodating portion is slightly concave. By means of the second arc surface and the accommodating portion, the probability of the sleeve portion wearing the corner end of the screw member is greatly reduced. The first distance is quite small, the outer diameter of the body is only slightly increased by the second arc surface, the outer diameter of the body and the fitting part will not wear the corner end of the screw part, the fitting part has a better balance structure between the outer diameter and no wear, and the center of the first circle is at the same position as the corner end of the second hexagon, the fitting part can fit the star-shaped screw part to drive it, the fitting part is expandable, and has three better advantages.

In order to enable the members of the Jun Bureau and those familiar with this technology to fully understand the effects of the present invention, the structure and composition of the present invention are explained below with the help of diagrams and figure numbers. However, the following is only used to explain the implementation examples of the present invention and is not intended to limit the present invention in any form. Therefore, any modifications and changes made within the spirit of the present invention should still fall within the protection scope of the present invention.

10: Body

11: Fitting part

12: Drive unit

121: First curved surface

122: Second curved surface

123: First radius

124: Second radius

125: First distance

126: Second distance

13: Accommodation section

131: The first circle

132: Third radius

14: First center

141: The second circle

142: The first hexagon

143: First vertical line

144: The third distance

145: The fourth distance

146: Second hexagon

147: Corner end

20: Screw-on parts

30: Star-shaped screw fittings

Figure 1 is a three-dimensional diagram of the sleeve structure of the hand tool of the present invention.

Figure 2 is a front view of the structure of the hand tool sleeve of the present invention.

Figure 3 is a front view of the first operating state of the hand tool sleeve structure of the present invention.

Figure 4 is a front view of the second operating state of the hand tool sleeve structure of the present invention.

Figure 5 is a front view of the third operating state of the hand tool sleeve structure of the present invention.

Figure 6 is a front view of the hand tool sleeve structure of the present invention when it is sleeved with the star-shaped screw fitting.

Figure 7 is a three-dimensional diagram of the second embodiment of the hand tool sleeve structure of the present invention.

Figure 8 is a three-dimensional diagram of the third embodiment of the hand tool sleeve structure of the present invention.

Figure 9 is a three-dimensional diagram of the fourth embodiment of the hand tool sleeve structure of the present invention.

Figure 10 is a three-dimensional diagram of the fifth embodiment of the hand tool sleeve structure of the present invention.

Figure 11 is a front view of the sixth embodiment of the hand tool sleeve structure of the present invention.

First, please refer to Figures 1 and 2. Figure 1 is a three-dimensional diagram of the hand tool sleeve structure of the present invention, and Figure 2 is a front view of the hand tool sleeve structure of the present invention. The present invention is about a hand tool sleeve structure, which includes: a body 10, the body 10 is provided with a sleeve 11, the sleeve 11 includes six driving parts 12 and six accommodating parts 13, the six driving parts 12 and the six accommodating parts 13 are arranged in a spaced ring shape, the body 10 is a plum blossom wrench The hand structure, or the body 10 is a sleeve structure for each hand tool; the driving part 12 is in the shape of a convex arc surface, each of the driving parts 12 includes two first arc surfaces 121 and a second arc surface 122, the second arc surface 122 is located at the center of the driving part 12, the second arc surface 122 is located between the two first arc surfaces 121, and the second arc surface 122 is more protruding than the first arc surface 121, so that the first arc surface 121 is affected by the second arc surface 122 The first arc surface 121 has a first radius 123, and the second arc surface 122 has a second radius 124. The first radius 123 is larger than the second radius 124. The ratio between the value of the first radius 123 and the value of the second radius 124 is greater than 3 to 1, or the ratio between the first arc surface 121 and the second arc surface 122 is greater than 2 to 1. The first arc surface 121 is tangent to a horizontal line and the second arc surface 122 is also tangent to a horizontal line. There is a first distance 125 between the two horizontal lines, and the first distance 125 is less than 0.7MM, or the first distance 125 is less than 0.6MM or less than 0.5MM. The two ends of the second arc surface 122 have a second distance 126. The accommodating portion 13 is in a concave arc shape, and each accommodating portion 13 is disposed between each two first arc surfaces 121. The accommodating portion 13 forms a first circle 131, and the first circle 131 is not tangent to the first arc surface 121. The first circle 131 has a third radius 132, and the third radius 132 is smaller than the first radius 123, or the third radius 132 is smaller than the second radius 124. The accommodating portion 13 is in a single arc shape. The axis of the sleeve portion 11 is provided with a first center 14, and the first center 14 forms a second circle 141. The second circle 141 forms a first hexagon 142. Each of the second arc surfaces 122 is connected to the second circle 141 and the first arc surface 124. The sides of a hexagon 142 are all tangent, the first center 14 is provided with a first vertical line 143, the most protruding part of the second arc surface 122 is located on the first vertical line 143, and the centers of the first arc surface 121 and the second arc surface 122 are also located on the first vertical line 143; there is a third distance 144 between each two opposite sides of the first hexagon 142, and each side of the first hexagon 142 has a fourth distance 145, the The fourth distance 145 is between 3 and 5 times the second distance 126, or the fourth distance 145 is between 3.7 and 4.3 times the second distance 126; a second hexagon 146 is provided with the first center 14 as the axis, the second hexagon 146 is smaller than the first hexagon 142, the side lines of the second hexagon 146 are parallel to the side lines of the first hexagon 142, and the second hexagon 146 has six corner ends 147, each of which is The corner end 147 is at the same position as the center of each of the first circles 131, that is, the corner end 147 is the center of the third radius 132; the second hexagon 146 has six corner ends 147, and each of the corner ends 147 is at the same position as the center of each of the first circles 131. This is the main structural principle of the star structure. Please refer to the structure of Figure 3 of US Patent 3584667. Therefore, the forming principle of the accommodating portion 13 is similar to the symbol 18 in Figure 3.

Please continue to refer to FIG. 3, which is a front view of the first operating state of the hand tool sleeve structure of the present invention sleeved with the screw member 20. As can be clearly seen from the figure, when the body 10 rotates a screw member 20 clockwise, each of the second arc surfaces 122 is against each side surface of the screw member 20. Since the second arc surface 122 and the first arc surface 121 have the first distance 125, when the second arc surface 122 and the side surface of the screw member 20 are against each other, the second arc surface 122 is located at The first arc surface 121 on the right side of the second arc surface 122 is spaced from the side surface of the screw-fitting part 20 and does not abut against the side surface of the screw-fitting part 20. The other first arc surface 121 is also far away from the side surface of the screw-fitting part 20. The six corners of the screw-fitting part 20 are respectively located within the range of each of the accommodating portions 13. When the sleeve 11 rotates the screw-fitting part 20, the accommodating portion 13 is not tangent to the first arc surface 121, thereby avoiding the wear of the corner end of the screw-fitting part 20.

Please continue to refer to FIG. 4, which is a front view of the second operating state of the hand tool sleeve structure sleeved with the screw member 20 of the present invention. It can be clearly shown in the figure that when the body 10 rotates the screw member 20 counterclockwise, each of the second arc surface 122 is against each side surface of the screw member 20, and the first arc surface 121 located on the left side of the second arc surface 122 is spaced from the side surface of the screw member 20, that is, the first arc surface 121 does not lean against the side surface of the screw member 20, and the six corners of the screw member 20 are respectively located within the range of each of the accommodating portions 13, and the sleeve portion 11 rotates the screw member 20 counterclockwise.

Please refer to FIG. 5, which is a front view of the third operation state of the sleeve structure of the hand tool of the present invention sleeve screw member 20. It can be clearly shown from the figure that when the hexagonal screw member 20 has been worn and slightly rounded, the body 10 rotates the screw member 20 counterclockwise, and the most protruding part of the second arc surface 122 can also be reliably pressed against each side surface of the screw member 20, so as to disassemble the screw member 20 with rounded corners.

Please refer to FIG. 6, which is a front view of the present invention when a star-shaped screw-on component 30 is fitted. Each of the corner ends 147 is at the same position as the center of each of the first circles 131. The six circular ends of the star-shaped screw-on component 30 can be respectively accommodated in each of the accommodating portions 13 to fit and rotate the star-shaped screw-on component 30.

Please continue to refer to Figure 7, which is a three-dimensional diagram of the second embodiment of the hand tool sleeve structure of the present invention. The main body 10 is a ratchet structure, and the ratchet structure is mainly pivoted on the ratchet wrench.

Please refer to Figure 8, which is a three-dimensional diagram of the third embodiment. The main body 10 is a sleeve structure.

Please refer to Figure 9, which is a three-dimensional diagram of the fourth embodiment, and the main body 10 is a sliding rod structure.

Please refer to Figure 10, which is a three-dimensional diagram of the fifth embodiment. The main body 10 is a floating joint or a universal joint.

Please refer to FIG. 11, which is a front view of the sixth embodiment of the present invention. In the embodiment, the body 10 is an open wrench structure. The body 10 of FIG. 11 lacks two side surfaces on the left side of the body 10 of FIG. 1 to form the open wrench structure. Of course, the body 10 can also be a pipe wrench structure.

In another embodiment of the present invention, the intersection of the receiving portion 13 and the first arc surface 121 may have a rounded corner structure, so that the receiving portion 13 and the first arc surface 121 can be smoothly connected.

The hand tool sleeve structure of the present invention has the following advantages:

1. The driving part 12 includes the first arc surface 121 and the second arc surface 122. The second arc surface 122 is slightly protruding from the first arc surface 121, so that the first arc surface 121 and the second arc surface 122 have the first distance 125. When the main body 10 rotates the screw-on component 20, each of the second arc surfaces 122 abuts against each side surface of the screw-on component 20, so that one of the first arc surfaces 121 and the side surface of the screw-on component 20 are spaced apart, and the other first arc surface 121 is also far away from the side surface of the screw-on component 20. The six corners of the screw-on component 20 are respectively located within the range of each of the accommodating portions 13, so as to avoid wear to the six corner ends of the screw-on component 20.

2. The convex curvature of the second curved surface 122 is slightly protruding from the first curved surface 121, and the first distance 125 is only less than 0.5 mm, which means that the outer diameter of the body 10 is only slightly increased by the second curved surface 122.

3. The receiving portion 13 is in the shape of a concave arc surface. Each receiving portion 13 is disposed between each two first arc surfaces 121. A first circle 131 is formed at the receiving portion 13. The first circle 131 and the first arc surface 121 are not tangent. When the main body 10 rotates the screw member 20, each corner end of the screw member 20 is located within the range of each receiving portion 13. The receiving portion 13 can avoid wearing the corner end of the screw member 20.

4. The receiving portion 13 has the first circle 131, the center of which is at the same position as the corner end 147 of the second hexagon 146. The six circular ends of the star-shaped screw member 30 can be respectively accommodated in each receiving portion 13, and the sleeve portion 11 can be sleeved with the star-shaped screw member 30 to drive it and is expandable.

5. The principle of the present invention is that: based on the above four points, the second curved surface 122 is slightly protruding from the first curved surface 121, so that the first curved surface 121 and the second curved surface 122 have the first distance 125, and the receiving portion 13 is provided, the first circle 131 is formed in the receiving portion 13, and the first circle 131 is not tangential to the first curved surface 121, that is, the second curved surface 122 is slightly protruding, and the receiving portion 13 is slightly concave, and the second curved surface 122 and the receiving portion 13 are used to prevent the sleeve 11 from being worn. The probability of the corner end of the screw-on component 20 being damaged is greatly reduced. The first distance 125 is only less than 0.5 mm. The outer diameter of the body 10 is only slightly increased by the second arc surface 122. The outer diameter of the body 10 and the fitting portion 11 will not wear the corner end of the screw-on component 20. The fitting portion 11 has a better balance structure between the outer diameter and no wear. The center of the first circle 131 is at the same position as the corner end 147 of the second hexagon 146. The fitting portion 11 can fit the star-shaped screw-on component 30 to drive it. The fitting portion 11 is expandable.

6. The second arc surface 122 is an arc surface, and will not cause bite marks on the screw member 20 when rotating.

7. Please refer to Figure 5 again. When the hexagonal screw part 20 has been worn and has a slightly rounded corner, the main body 10 rotates the screw part 20 counterclockwise, and the most protruding part of the second arc surface 122 of each driving part 12 can also be reliably pressed against each side surface of the screw part 20, so as to achieve the effect of disassembling the screw part 20.

Therefore, the hand tool sleeve joint structure of this invention has great industrial application value, novelty and progress, and can truly meet the application requirements for invention patents, so an application is filed in accordance with the law.

10: Body

11: Fitting part

Claims (9)

A hand tool sleeve joint structure, comprising: a body, the body is provided with a sleeve joint, the sleeve joint comprises six driving parts and six receiving parts, the six driving parts and the six receiving parts are arranged in a spaced ring shape; the driving part is in a convex arc shape, each of the driving parts comprises two first arc surfaces and a second arc surface, the second arc surface is arranged at the center of the driving part, the second arc surface is arranged between the two first arc surfaces, the second arc surface is more protruding than the first arc surface, so that the first arc surface is spaced by the second arc surface The first arc surface has a first radius, the second arc surface has a second radius, the first radius is larger than the second radius, the first arc surface is tangent to a horizontal line and the second arc surface is also tangent to a horizontal line, the two horizontal lines have a first distance, and the two ends of the second arc surface have a second distance; the accommodating portion is in a concave arc shape, each accommodating portion is arranged between each two first arc surfaces, the accommodating portion forms a first circle, the first circle is not tangent to the first arc surface, the first circle The housing portion has a third radius, which is smaller than the first radius, or the third radius is smaller than the second radius, and the housing portion is in a single arc shape; a first center is provided at the axis of the sleeve portion, the first center forms a second circle, the second circle forms a first hexagon, each of the second arc surfaces is tangent to the second circle and the side surface of the first hexagon, the first center is provided with a first vertical line, the most protruding part of the second arc surface is located on the first vertical line, the first arc surface and the second arc surface are The centers of the circles are all located on the first vertical line; there is a third distance between each two opposite sides of the first hexagon, and each side of the first hexagon has a fourth distance; a second hexagon is set with the first center as the axis, the second hexagon is smaller than the first hexagon, the side lines of the second hexagon are parallel to the side lines of the first hexagon, and the second hexagon has six corners, each of which is at the same position as the center of each of the first circles, that is, the corner is the center of the third radius. The hand tool fitting structure as described in claim 1, wherein the body is a box wrench structure, or the body is a fitting structure for each hand tool. The hand tool sleeve structure as described in claim 1, wherein the ratio between the value of the first radius and the value of the second radius is greater than 3 to 1, or the ratio between the value of the first radius and the value of the second radius is greater than 2 to 1. The hand tool sleeve structure as described in claim 1, wherein the first distance is less than 0.7MM, or the first distance is less than 0.6MM, or the first distance is less than 0.5MM. The hand tool sleeve structure as described in claim 1, wherein the fourth distance is between 3 and 5 times the second distance, or the fourth distance is between 3.7 and 4.3 times the second distance. The hand tool sleeve structure as described in claim 1, wherein the body is a ratchet structure, and the ratchet structure is mainly pivoted on a ratchet wrench. The hand tool sleeve structure as described in claim 1, wherein the main body is a sleeve structure. The hand tool fitting structure as described in claim 1, wherein the body is a sliding rod structure, a floating joint or a universal joint. The hand tool sleeve structure as described in claim 1, wherein the body is an open-end wrench structure, or the body is a pipe wrench structure.

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