TWI860224B - Hand tool sleeve joint structure - Google Patents

Abstract

The present invention relates to a hand tool sleeve structure, which includes: a body is provided with a sleeve, the sleeve includes six driving parts and six receiving parts; each driving part includes a first surface, a second surface and a third surface, the first surface and the second surface have a first intersection at their junction, and the first surface and the third surface have a second intersection at their junction; each receiving part is in the shape of a concave arc surface, and the receiving part forms a first arc; the sleeve has a first center, a first circle and a first hexagon, each first surface coincides with each side of the first hexagon, the first center has a first vertical line, and the first intersection is located on the first vertical line; the first hexagon has six first corners, and the first arc is located outside the first corner.

Description

Hand tool sleeve structure

The present invention is related to a hand tool sleeve joint structure, and in particular to a hand tool sleeve joint structure, in which the sleeve joint has both a general rotation mode and a rotation effect of a screw-jointed part with rounded corners. The sleeve joint and the screw-jointed part have three rotation modes and better rotation effect.

As we know before, the commonly used hand tool sleeve structure, such as US patent case number: US2007/0125204 A1, 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 view of the defects of the hand tool sleeve joint structure in the above-mentioned conventional patent case, the inventor, with many years of manufacturing experience, finally launched a product of the hand tool sleeve joint structure that can solve the conventional disadvantages.

Problems to be solved by the invention: In the conventional hand tool sleeve structure, the protrusion of the oblique convex is more protruding. In order to maintain the rotational torque of the sleeve, the sleeve needs to have a certain wall thickness. The oblique convex ...

Technical means to solve the problem: A hand tool sleeve structure, which includes: a body is provided with a sleeve, the sleeve includes six driving parts and six receiving parts; each of the driving parts includes a first surface, a second surface and a third surface, the first surface and the second surface have a first intersection at the junction, and the first surface and the third surface have a second intersection at the junction; each of the receiving parts is in the shape of a concave arc surface, and the receiving part forms a first arc; the sleeve has a first center, a first circle and a first hexagon, each of the first surfaces coincides with each side of the first hexagon, the first center is provided with a first vertical line, and the first intersection is located on the first vertical line; the first hexagon has six first corners, and the first arc is located outside the first corner.

Compared with the effects of the prior art: the main body of the hand tool sleeve structure can have a large-area rotation effect when the screw part is tightened clockwise or unscrewed counterclockwise. When the screw part is ground into a rounded corner, the second intersection can be clamped on the six sides of the screw part to rotate the screw part. The second intersection has the effect of a concentrated force point. In this way, the sleeve has both a general rotation method and a rotation effect of rotating the screw part with a rounded corner. The sleeve and the screw part have three rotation methods and a better rotation effect. The receiving portion is in the shape of a concave arc surface. Each receiving portion is disposed between the second surface and the third surface. The first arc is formed at the receiving portion. The first arc is not tangential to the second surface and the third surface. When the body rotates the screw-on component, each corner end of the screw-on component is located in the receiving portion, thereby avoiding wear on the corner end of the screw-on component.

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 under the present invention should still fall within the scope of protection of the present invention.

10: Body

11: Fitting part

12: Drive unit

121: First page

122: Second side

123: The third side

124: First intersection

125: Second intersection

126: First distance

127: Second distance

13: Accommodation section

131: First Arc

132: First radius

14: First center

141: The first circle

142: The first hexagon

143: First vertical line

144: First corner end

145: First angle

146: Second angle

20: Screw-on parts

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 sleeve structure of the hand tool of the present invention.

Figure 3 is a front view schematic diagram of the sleeve structure of the hand tool of the present invention.

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

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

Figure 6 is a front view of the third operating state of the hand tool sleeve structure of the present invention.

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.

First, please refer to Figures 1 to 3. Figure 1 is a three-dimensional diagram of the hand tool sleeve structure of the present invention, Figure 2 is a front view of the hand tool sleeve structure of the present invention, and Figure 3 is a front view schematic diagram 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 part 11, the sleeve part 11 includes six driving parts 12 and six receiving parts 13, the six driving parts 12 and the six receiving parts 13 are arranged in a spaced ring shape, the body 10 is a box spanner structure, or the body 10 is a sleeve part structure for various hand tools;

Each of the driving parts 12 includes a first surface 121, a second surface 122 and a third surface 123. The first surface 121 is disposed between the second surface 122 and the third surface 123. The first surface 121, the second surface 122 and the third surface 123 are planar. The junction of the first surface 121 and the second surface 122 has a first intersection 124, and the junction of the first surface 121 and the third surface 123 has a second intersection 125. There is a first distance 126 between the two parallel first surfaces 121, and the length of the first surface 121 has a second distance 127. The distance between the first intersection 124 and the second intersection 125 is the second distance 127, and the value of the second distance 127 is one twentieth of the value of the first distance 126;

Each of the accommodating portions 13 is in the shape of a concave arc surface. Each of the accommodating portions 13 is disposed between the second surface 122 and the third surface 123. The accommodating portion 13 forms a first arc 131. The first arc 131 is not tangent to the second surface 122. The first arc 131 is not tangent to the third surface 123. The first arc 131 has a first radius 132. The value of the first radius 132 is one tenth of the value of the first distance 126. The value of the first radius 132 is twice the value of the second distance 127.

In a two-dimensional manner, a first center 14 is provided at the axis of the sleeve portion 11, and the first center 14 forms a first circle 141. Each of the first faces 121 and the first circle 141 are tangent to each other, and the first circle 141 forms a first hexagon 142. Each of the first faces 121 coincides with each side of the first hexagon 142. The first center 14 is provided with a first vertical line 143, and the first intersection 124 is located on the first vertical line 143, that is, the first face 121 and the third face 123 are located on one side of the first vertical line 143, and the second face 122 is located on the other side of the first vertical line 143;

The first hexagon 142 has six first corners 144, the first arc 131 is located outside the first corner 144, the side of the first hexagon 142 and the second face 122 have a first angle 145, the first angle 145 is between 4 degrees and 5 degrees, the side of the first hexagon 142 and the third face 123 have a second angle 146, the second angle 146 is greater than the first angle 145, the value of the second angle 146 minus the value of the first angle 145 is between 0.5 and 1.5, or the value of the second angle 146 minus the value of the first angle 145 is between 1 and 1.5.

Please refer to FIG. 4, 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. It can be clearly shown in the figure that when the body 10 rotates the screw member 20 clockwise, each of the second faces 122 is against each side face of the screw member 20. When the second face 122 is against the side face of the screw member 20, the third face 123 is spaced from the side face of the screw member 20. The six corner ends of the screw member 20 are respectively located within the range of each of the accommodating portions 13. When the sleeve 11 rotates the screw member 20, the accommodating portion 13 can avoid wearing the corner ends of the screw member 20.

Please refer to FIG. 5, which is a front view of the second operation 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 third faces 123 is against each side face of the screw member 20, and the second face 122 is spaced from the side face of the screw member 20. The six corner ends of the screw member 20 are respectively located within the range of each of the accommodating portions 13, and the accommodating portions 13 can avoid wear to the corner ends of the screw member 20.

Please refer to FIG. 6, which is a front view of the third operating state of the sleeve structure of the hand tool of the present invention sleeve screw 20. It can be clearly shown in the figure that when the hexagonal screw 20 has been worn and slightly rounded, the body 10 rotates the screw 20 counterclockwise, and the third surface 123 and the second intersection 125 can be reliably against each side of the screw 20. The second intersection 125 can be used as a concentrated force point to rotate the screw 20 with line contact. The screw 20 with a side surface worn into a rounded corner can be easily unscrewed by the second intersection 125, and the sleeve 11 can disassemble the screw 20 with a rounded corner.

Please 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 FIG. 10 which is a three-dimensional diagram of the fifth embodiment. The body 10 is a floating joint structure, or the body 10 is a universal joint structure, or the body 10 is a T-bar universal joint structure.

In another embodiment of the present invention, a chamfered structure may be provided between the accommodation portion 13 and the second surface 122, so that the accommodation portion 13 and the second surface 122 can be smoothly connected, and a chamfered structure may be provided between the accommodation portion 13 and the third surface 123, so that the accommodation portion 13 and the third surface 123 can be smoothly connected. The value of the second distance 127 is one tenth of the value of the first distance 126, that is, the value of the first radius 132 is the same as the value of the second distance 127.

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

1. Please refer to FIG. 4 for assistance. When the main body 10 rotates the screw-on component 20 clockwise, the second surface 122 is the main rotation force application point, and the six first surfaces 121 are auxiliary force application points. When the screw-on component 20 is rotated in this way, the second surface 122 has the largest area to rotate the screw-on component 20 without easily wearing the six side surfaces.

2. Please refer to Figure 5. When the main body 10 rotates the screw-on component 20 counterclockwise, the six third surfaces 123 are the main rotation force application points, and the six first surfaces 121 are the auxiliary force application points. When the screw-on component 20 is rotated in this way, the third surface 123 also has a larger rotation area and is not easy to wear when rotating.

3. Please refer to Figure 6. When the six sides of the screw-on component 20 are worn into rounded corners, the six second intersections 125 are clamped on the remaining six small sides of the screw-on component 20. The second intersections 125 have the effect of concentrating the force application points to achieve the effect of disassembling the screw-on component 20 that has been worn into rounded corners.

4. In addition to the above three points, the main body 10 of the hand tool sleeve structure can have a large area rotation effect when tightening the screw part 20 clockwise and unscrewing the screw part 20 counterclockwise. When the screw part 20 is ground into a rounded corner, the second intersection 125 can be clamped at the six edges of the screw part 20 to rotate the screw part 20. The second intersection 125 has the effect of concentrating the force application point. In this way, the sleeve part 11 has both the general rotation method and the rotation effect of rotating the screw part 20 with rounded corners. The sleeve part 11 and the screw part 20 have three rotation methods and better rotation effect.

5. The receiving portion 13 is in the shape of a concave arc surface. Each receiving portion 13 is disposed between the second surface 122 and the third surface 123. The receiving portion 13 is formed with the first arc 131. The first arc 131 is not tangential to the second surface 122 and the third surface 123. When the main body 10 rotates the screw-on component 20, each corner end of the screw-on component 20 is located in each receiving portion 13, thereby avoiding wear of the corner end of the screw-on component 20.

6. The first surface 121, the second surface 122 and the third surface 123 are planar, and it is impossible for the first surface 121, the second surface 122 and the third surface 123 to cause bite marks on the screw member 20 when rotating.

7. The value of the second distance 127 is one twentieth of the value of the first distance 126, and the value of the first radius 132 is one tenth of the value of the first distance 126. There are at least twenty specifications of the fitting part 11 in the metric system, and at least twenty specifications of the fitting part 11 in the imperial system. It takes a lot of time to design the dimensions of the fitting part 11 for each specification. The hand tool fitting part structure of the present invention can set a mathematical relationship in the software. After the value of the first distance 126 is completed, the values of the second distance 127 and the first radius 132 can be determined to reduce the variables in designing each specification.

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 comprises: 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 an annular shape at intervals; each of the driving parts comprises a first surface, a second surface and a third surface, the first surface is arranged between the second surface and the third surface, the first surface, the second surface and the third surface are in a plane shape, and the junction between the first surface and the second surface has a The first intersection point is a first intersection point, and the junction of the first surface and the third surface has a second intersection point. There is a first distance between the two parallel first surfaces, and the length of the first surface has a second distance, that is, the distance between the first intersection point and the second intersection point is the second distance; each of the accommodating portions is in a concave arc shape, and each of the accommodating portions is arranged between the second surface and the third surface, and the accommodating portion forms a first arc, and the first arc is not tangent to the second surface, and the first The arc is not tangent to the third face, and the first arc has a first radius; a first center is provided at the axis of the sleeve portion, and the first center forms a first circle, and each of the first faces is tangent to the first circle, and the first circle forms a first hexagon, and each of the first faces coincides with each side of the first hexagon, and a first vertical line is provided at the first center, and the first intersection is located on the first vertical line, that is, the first face and the The third face is located on one side of the first vertical line, and the second face is located on the other side of the first vertical line; the first hexagon has six first corners, and the first arc is located outside the first corner. There is a first angle between the side of the first hexagon and the second face, and the first angle is between 4 degrees and 5 degrees. There is a second angle between the side of the first hexagon and the third face, and the second angle is greater than the first angle. As described in claim 1, the hand tool fitting structure, 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 value of the second distance is one twentieth of the value of the first distance; the value of the first radius is one tenth of the value of the first distance, that is, the value of the first radius is twice the value of the second distance. The hand tool fitting structure as described in claim 1, wherein the value of the second angle minus the value of the first angle is between 0.5 and 1.5, or the value of the second angle minus the value of the first angle is between 1 and 1.5. As described in claim 1, the hand tool sleeve joint structure includes a screw part, which is hexagonal and has six sides. When the hexagonal screw part is worn and has a slightly rounded corner, the body rotates the screw part counterclockwise, and the third surface and the second intersection can be reliably against each side of the screw part. The second intersection can be used as a concentrated force point to rotate the screw part with line contact. The screw part with a side surface worn into a rounded corner can be easily unscrewed by the second intersection, and the sleeve joint can disassemble the screw part with a rounded corner. The hand tool sleeve structure as described in claim 1, wherein the body is a ratchet structure, or the body is a sleeve structure. The hand tool sleeve joint structure as described in claim 1, wherein the body is a sliding rod structure, or the body is a floating joint structure, or the body is a universal joint structure, or the body is a T-bar universal joint structure. As described in claim 1, the hand tool sleeve structure, wherein a rounded corner structure may be provided between the receiving portion and the second surface, so that the receiving portion and the second surface can be smoothly connected, and a rounded corner structure may be provided between the receiving portion and the third surface, so that the receiving portion and the third surface can be smoothly connected. The hand tool sleeve structure as described in claim 1, wherein the value of the second distance is one tenth of the value of the first distance, the value of the first radius is one tenth of the value of the first distance, and the value of the first radius is the same as the value of the second distance.

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