Swing Wrench

Abstract

To obtain a swing type wrench.SOLUTION: A swing type wrench includes a drive head, a handle, a pressing member, and a positioning shaft. The drive head has a first protrusion structure, and an inner side surface of the first protrusion structure has a smooth portion and a tooth-shaped portion. The handle has two second protrusion structures, and the first protrusion structure is installed between the second protrusion structures. The positioning shaft and the pressing member engage with each other, and the pressing member and the positioning shaft are inserted into the first protrusion structure and the second protrusion structure. By this, an angle of the swing type wrench can be flexibly adjusted, and an engagement strength can be increased when a set tilt angle between the drive head and the handle is fixed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a swivel wrench, and more particularly to a swivel wrench that allows flexible adjustment of the tilt angle. [Background technology]

[0002] Pivoting wrenches are a widely used hand tool that allow users to adjust the angle between the drive head and handle of the wrench to accommodate the angle of the fastening object, thereby avoiding the problem of difficulty in applying force due to spatial limitations. However, known pivoting wrenches have several difficult problems to solve both before and during operation. For example, during operation, it is often difficult to fix the angle between the drive head and handle due to the applied force, and it is difficult to adjust the angle between the drive head and handle before using the pivoting wrench.

[0003] Therefore, the development of a swing-head wrench that allows for easy adjustment of the tilt angle and maintains a stable tilt angle during operation has become an important and urgent problem in the industry. Summary of the Invention

[0004] The present disclosure provides a swivel wrench, which is fitted by inserting a pressing member, a positioning shaft, a first convex structure, and a second convex structure, thereby achieving the effects of flexible adjustment of the tilt angle and stabilizing the tilt angle during operation.

[0005] One embodiment of the present disclosure provides a swivel wrench, including a drive head, a handle, a pressing member, and a positioning shaft. The drive head has a first convex structure, the inner surface of which has a smooth portion and a toothed portion. The handle has two second convex structures, the first convex structure being located between the second convex structures. The positioning shaft and the pressing member engage with each other, and the pressing member and the positioning shaft are inserted into the first convex structure and the second convex structure. The length of the toothed portion is L1, and the sum of the lengths of the smooth portion and the toothed portion is L2, which are: It meets the condition JPEG0007758391000001.jpg822.

[0006] In the oscillating wrench according to the embodiment described above, the second convex structure can have a smooth inner surface and a toothed inner surface, respectively, where the smooth inner surface corresponds to the smooth portion, and the toothed inner surface corresponds to the toothed portion.

[0007] In the oscillating wrench according to the embodiment described in the preceding paragraph, the positioning shaft can have a toothed end, which meshes with the toothed inner surface.

[0008] In the oscillating wrench according to the embodiment described above, the pressing member may have a first engaging end, the positioning shaft may have a second engaging end, and the first engaging end and the second engaging end may engage with each other.

[0009] In the oscillating wrench according to the embodiment described above, the first engagement end may have a protruding structure, and the surface of the protruding structure may be smooth or threaded.

[0010] The oscillating wrench according to the embodiment described above may further include an elastic member, wherein the elastic member is disposed on the smooth end of the positioning shaft.

[0011] In the oscillating wrench according to the embodiment described above, the pressing member can have a toothed outer surface and a smooth outer surface, the toothed outer surface has a length Ltp, and the pressing member is mounted on one of the second convex structures over a total length Lto, which are The condition JPEG0007758391000002.jpg850 can be met.

[0012] In the oscillating wrench according to the embodiment described in the preceding paragraph, the toothed outer surface of the pressing member can contact an entity on the smooth inner surface of one of the second convex structures.

[0013] In the oscillating wrench according to the embodiment described above, one end of the positioning shaft may have a tapered structure, and the tapered structure is located between the toothed end and the smooth end of the positioning shaft.

[0014] In the oscillating wrench according to the embodiment described above, the angle between the tapered structure and the toothed end is θ, and they can satisfy the condition of 30 degrees≦θ≦60 degrees.

[0015] In the oscillating wrench according to the embodiment described above, the tapered structure may be a fillet structure. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a three-dimensional view of an oscillating wrench according to one embodiment of the present disclosure. FIG. [Figure 2] 2 is an exploded view of the oscillating wrench according to the embodiment of FIG. 1. [Figure 3] 2 is another exploded view of the oscillating wrench according to the embodiment of FIG. 1. [Figure 4] FIG. 2 is a cross-sectional view of the oscillating wrench according to the embodiment of FIG. 1. [Figure 5] FIG. 2 is a partial cross-sectional view of the oscillating wrench according to the embodiment of FIG. 1. [Figure 6] FIG. 10 is an exploded view of a oscillating wrench according to another embodiment of the present disclosure. [Figure 7] FIG. 7 is a cross-sectional view of the oscillating wrench according to the embodiment of FIG. 6. DETAILED DESCRIPTION OF THE INVENTION [Example]

[0017] Please refer to Figures 1 to 3. Figure 1 is a three-dimensional view of a swivel head wrench 100 according to one embodiment of the present disclosure, Figure 2 is an exploded view of the swivel head wrench 100 according to the embodiment of Figure 1, and Figure 3 is another exploded view of the swivel head wrench 100 according to the embodiment of Figure 1. As can be seen from Figures 1 to 3, the swivel head wrench 100 includes a drive head 110, a handle 120, a positioning shaft 130, and a pressing member 140, of which the drive head 110 has a first convex structure 111, the handle 120 has two second convex structures 121, the first convex structure 111 is disposed between the second convex structures 121, the pressing member 140 and the positioning shaft 130 are engaged with each other, and the positioning shaft 130 and the pressing member 140 are inserted into the first convex structure 111 and the second convex structure 121.

[0018] When the pressing member 140 is pressed, the included angle between the driving head 110 and the handle 120 can be adjusted, and the engagement between the positioning shaft 130 and the pressing member 140 can fix the set tilt angle between the driving head 110 and the handle 120.

[0019] As can be seen from Figures 2 and 3, the inner surface of the first convex structure 111 has a smooth portion 112 and a toothed portion 113, and the second convex structure 121 can have a smooth inner surface 122 and a toothed inner surface 123, respectively, of which the smooth inner surface 122 corresponds to the smooth portion 112, and the toothed inner surface 123 corresponds to the toothed portion 113.

[0020] Please refer to Figure 4, which is a cross-sectional view of the oscillating wrench 100 according to the embodiment of Figure 1, where Figure 4 shows the oscillating wrench 100 when the pressing member 140 is pressed to perform adjustment. As can be seen from Figure 4, the positioning shaft 130 can have a toothed end 131 and a smooth end 132, of which the toothed end 131 is engaged with the toothed inner surface 123 of the second convex structure 121. As a result, when the pressing member 140 is pressed, the toothed end 131 of the positioning shaft 130 can be engaged with the toothed inner surface 123 of the second convex structure 121, thereby adjusting the included angle between the driving head 110 and the handle 120. Furthermore, when the pressing member 140 is not pressed, the toothed end 131 of the positioning shaft 130 can mesh with the toothed portion 113 of the first convex structure 111 and can also mesh with the toothed inner surface 123 of the second convex structure 121, thereby fixing the tilt angle between the drive head 110 and the handle 120 after the setting is completed.

[0021] 2 to 4, the pressing member 140 may have a first engaging end 141, and the positioning shaft 130 may have a second engaging end 133, where the first engaging end 141 and the second engaging end 133 are engaged with each other. The first engaging end 141 may have a protruding structure, and the surface of the protruding structure may be threaded, i.e., the first engaging end 141 and the second engaging end 133 may be engaged in a screw-type manner. This allows the positioning shaft 130 to be tightly coupled with the pressing member 140.

[0022] The oscillating wrench 100 may further include an elastic member 150, which is installed on the smooth end 132 of the positioning shaft 130, to enable the pressing member 140 to return to its original position after being pressed. Furthermore, the elastic member 150 may be, but is not limited to, a spring.

[0023] 2 to 4, the smooth portion 112 may have a threaded portion 114, of which the threaded portion 114 is located at one end of the smooth portion 112 and the toothed portion 113 is located at the other end of the smooth portion 112. By providing the threaded portion 114, a connecting member (not shown) can be further provided on the threaded portion 114, thereby adjusting the connection strength between the pressing member 140 and the driving head 110.

[0024] 2, the toothed end 131 of the positioning shaft 130 has a toothed structure 131a, which is located at one end of the toothed end 131, adjacent to the smooth end 132. This allows the toothed structure 131a to enhance the toothed effect between the toothed portion 113 and the toothed inner surface 123.

[0025] As can be seen from FIG. 4, the pressing member 140 can have a toothed outer surface 142 and a smooth outer surface 143, of which the length of the toothed outer surface 142 is Ltp, and the total length of the pressing member 140 placed on one of the second convex structures 121 is Lto, which are JPEG0007758391000003.jpg850 can be satisfied, thereby making it possible to adjust the connection strength between the pressing member 140 and the handle 120 during the pressing process.

[0026] Furthermore, the toothed outer surface 142 of the pressing member 140 contacts an entity on the smooth inner surface 122 of one of the second convex structures 121, thereby strengthening the connection strength between the pressing member 140 and the second convex structure 121 when adjusting the included angle between the driving head 110 and the handle 120, and preventing it from loosening and falling off during the angle adjustment process.

[0027] Please refer to Figure 5, which is a partial cross-sectional view of the oscillating wrench 100 according to the embodiment of Figure 1. As can be seen from Figure 5, the length of the toothed portion 113 is L1, and the sum of the lengths of the smooth portion 112 and the toothed portion 113 is L2. JPEG0007758391000004.jpg822 is satisfied, thereby allowing the strength of the connection between the positioning shaft 130 and the driving head 110 to be adjusted, i.e., the engagement range between the toothed end 131 of the positioning shaft 130 and the toothed portion 113 of the first convex structure 111 to be adjusted. [Example]

[0028] Please refer to Figure 6, which is an exploded view of a swivel wrench 200 according to another embodiment of the present disclosure. As can be seen from Figure 6, the swivel wrench 200 includes a drive head 210, a handle 220, a positioning shaft 230, and a pressing member 240, wherein the drive head 210 has a first convex structure 211, the handle 220 has two second convex structures 221, the first convex structure 211 is disposed between the second convex structures 221, the pressing member 240 and the positioning shaft 230 are engaged with each other, and the positioning shaft 230 and the pressing member 240 are inserted into the first convex structure 211 and the second convex structure 221. Specifically, one end of the handle 220 may be open, but is not limited to this.

[0029] The inner surface of the first convex structure 211 has a smooth portion 212 and a toothed portion (not shown), and the second convex structure 221 can have a smooth inner surface 222 and a toothed inner surface 223, respectively, of which the smooth inner surface 222 corresponds to the smooth portion 212 and the toothed inner surface 223 corresponds to the toothed portion.

[0030] Furthermore, the positioning shaft 230 may have a toothed end 231 and a smooth end 232 , of which the toothed end 231 meshes with the toothed inner surface 223 of the second convex structure 221 .

[0031] The pressing member 240 may have a first engaging end 241, a toothed outer surface 242 and a smooth outer surface 243, and the positioning shaft 230 may have a second engaging end 233, of which the first engaging end 241 and the second engaging end 233 are engaged with each other. The first engaging end 241 may have a protruding structure and the surface of the protruding structure is smooth, that is, the first engaging end 241 and the second engaging end 233 can be engaged in a mating manner.

[0032] The oscillating wrench 200 may further include an elastic member 250 , which is installed on the smooth end 232 of the positioning shaft 230 .

[0033] As can be seen from FIG. 6, the toothed end 231 of the positioning shaft 230 has a toothed structure 231 a , which is located at one end of the toothed end 231 adjacent to the smooth end 232 .

[0034] Please refer to FIG. 7, which is a cross-sectional view of the oscillating wrench 200 according to the embodiment of FIG. 6, where FIG. 7 is a conceptual diagram of the oscillating wrench 200 when the pressing member 240 is not pressed. As can be seen from FIGS. 6 and 7, one end of the positioning shaft 230 has a tapered structure 234, which is located between the toothed end 231 and the smooth end 232. The angle θ between the tapered structure 234 and the toothed end 231 satisfies the condition 30°≦θ≦60°. The tapered structure 234 enhances the structural strength of the positioning shaft 230. Specifically, the tapered structure 234 may be, but is not limited to, a fillet structure. The fillet structure further enhances structural strength and prevents cracking.

[0035] The embodiment of FIG. 6 has the same structure and arrangement of other components as the embodiment of FIG. 1, and therefore the description thereof will be omitted here.

[0036] In summary, the combination of the first convex structure, second convex structure, pressing member, and positioning shaft of the oscillating wrench disclosed herein allows for flexible adjustment of the wrench angle before use, and strengthens the engagement strength when fixing the tilt angle between the drive head and handle after setting, thereby enhancing operational stability during use. Furthermore, the length relationship between the toothed portion and the sum of the lengths of the smooth portion and toothed portion allows for flexible adjustment of the connection strength between the positioning shaft and the drive head, thereby enhancing operational adaptability.

[0037] Although the present invention has been disclosed by the above examples, they are not intended to limit the present invention, and any person skilled in the art may make some changes or modifications without departing from the spirit and scope of the present invention, and the protection scope of the present invention shall be as defined in the appended claims. [Explanation of symbols]

[0038] 100, 200 Swing Wrench 110, 210 drive head 111, 211 First convex structure 112, 212 smooth part 113 Dentate 114 Threaded part 120, 220 handle 121, 221 Second convex structure 122, 222 smooth inner surface 123, 223 dentate inner surface 130, 230 positioning axis 131, 231 dentate end 131a, 231a tooth matching structure 132, 232 smooth end 133, 233 Second engagement end 234 Tapered structure 140, 240 pressing member 141, 241 1st engagement end 142, 242 dentate outer surface 143, 243 smooth outer surface 150, 250 Elastic member L1 Length of the tooth L2 Sum of the lengths of the smooth and toothed parts Ltp Length of the outer surface of the tooth Lto is the total length of time that the pressing member is installed on one of the second convex structures. θ is the angle between the tapered structure and the toothed end

Claims

1. a drive head having a first convex structure, the inner surface of the first convex structure having a smooth portion and a toothed portion; a handle having two second convex structures, the first convex structure being disposed between the two second convex structures; A pressing member; a positioning shaft, which is engaged with the pressing member, and the pressing member and the positioning shaft are inserted into the first convex structure and the two second convex structures; The length of the toothed portion is L1, and the sum of the lengths of the smooth portion and the toothed portion is L2, which are: It satisfies the condition that The pressing member has a toothed outer surface and a smooth outer surface, the toothed outer surface has a length Ltp, and the pressing member has a total length Lto that is installed on one of the two second convex structures, which are This swivel wrench meets the following requirements.

2. 2. The oscillating wrench of claim 1, wherein the two second protrusion structures each have a smooth inner surface and a toothed inner surface, the smooth inner surface corresponding to the smooth portion, and the toothed inner surface corresponding to the toothed portion.

3. 3. The oscillating wrench of claim 2, wherein said locating shaft has a toothed end, said toothed end meshing with said toothed inner surface.

4. 2. The oscillating wrench according to claim 1, wherein the pressing member has a first engagement end, the positioning shaft has a second engagement end, and the first engagement end and the second engagement end engage with each other.

5. 5. The oscillating wrench according to claim 4, wherein the first engagement end is a protruding structure, and the surface of the protruding structure is smooth or threaded.

6. 2. The oscillating wrench of claim 1, further comprising an elastic member disposed on the smooth end of the positioning shaft.

7. 2. The oscillating wrench according to claim 1, wherein one end of the positioning shaft has a tapered structure, and the tapered structure is provided between the toothed end and the smooth end of the positioning shaft.

8. 8. The oscillating wrench of claim 7, wherein the angle between the tapered structure and the toothed end is θ, and the angle satisfies the condition 30 degrees≦θ≦60 degrees.

9. The oscillating wrench according to claim 7 , wherein the tapered structure is a fillet structure.

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