Micro-bending hand tool

Abstract

The invention provides a micro-bending hand tool, which comprises a short rod, a long rod and an additional part. The short rod is provided with a connecting part along a first axis, and the connecting part is provided with a first tool hole with a diameter of 1 / 4 inch. The long rod is provided with a driving part along a second axis, and the driving part is provided with a second tool hole with a diameter of 4 mm and a connecting outer periphery long enough to be connected with a wrench. The short rod and the long rod are pivotally connected with each other, so that the long rod and the short rod can be transformed between a first working position and a second working position. In the first working position, the first axis and the second axis are coaxial. In the second working position, the first axis and the second axis intersect to form a high-torque working angle. The additional part can be connected to the first tool hole or the second tool hole. Therefore, according to different requirements, the appropriate working end can be selected for operation.

Description

Technical Field

[0001] This invention relates to a hand tool, and more particularly to a multi-purpose miniature bending hand tool. Background Technology

[0002] In the application of hand tools, with the increasing demand for diversified operations, users have higher expectations for the flexibility and versatility of driving hand tools; however, existing driving tools are often centered on a single purpose, making it difficult to cope with changing usage scenarios, and can only be applied to specific types of fasteners or operational needs, lacking flexibility and adaptability.

[0003] If users need to complete a variety of different tasks or handle various types and sizes, they must carry multiple specialized hand tools to deal with them separately. This not only increases the burden of carrying and storing hand tools, but also reduces operational efficiency.

[0004] To address the aforementioned problems with hand tools, U.S. Patent No. US20080196559A1 discloses a multi-purpose drive tool comprising a first end having a fastener drive housing for accommodating a fastener drive device; a second end having a tool housing for accommodating a functional drive device or a functional accessory; and a pivot point located between the first end and the second end; wherein the first end and the second end are pivotable relative to each other.

[0005] However, the aforementioned patent's functionality is limited to attaching different tool heads to both ends, making its operation relatively simple and unable to effectively meet users' multi-purpose operational needs. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides a miniature bending hand tool that can be used with short or long rods to connect tool heads and screwdriver heads of different sizes, as well as with attachments or wrenches, to achieve multi-purpose operation according to different application requirements.

[0007] An embodiment of the present invention provides a miniature bending hand tool, comprising: a short rod having a connecting portion and a first connecting portion disposed away from a first axis, the end face of the connecting portion having a first tool hole recessed therein, the first tool hole having a hexagonal cross-sectional shape and a diameter of 1 / 4 inch; and a long rod having a driving portion and a second connecting portion disposed away from a second axis, the end face of the driving portion having a second tool hole recessed therein, the second tool hole having a hexagonal cross-sectional shape and a diameter of [missing information]. The drive unit is 4 mm thick and has a hexagonal connecting outer periphery. The connecting outer periphery of the drive unit can be connected to a wrench. The second connecting part of the long rod is pivotally connected to the first connecting part of the short rod, so that the long rod and the short rod can be changed between a first working position and a second working position. In the first working position, the first axis and the second axis are coaxial. In the second working position, the first axis and the second axis intersect to form a high torque working angle. An additional part is detachably connected to the first tool hole of the short rod or the second tool hole of the long rod.

[0008] In another embodiment of the invention, the outer diameter of the connecting outer periphery is 1 / 4 inch.

[0009] In another embodiment of the present invention, the outer periphery of the connecting part is provided with a plurality of first arc-shaped grooves in a continuous ring along the first axis; the long rod also has a middle section, which is integrally disposed between the driving part and the second connecting part, and the outer periphery of the middle section is provided with a plurality of second arc-shaped grooves in a continuous ring along the second axis.

[0010] In another embodiment of the present invention, the attachment has a main body and a connecting portion extending from the main body. The connecting portion is stepped and has a large diameter section and a small diameter section. The large diameter section is connected between the small diameter section and the main body. The connecting portion can be accommodated in a first tool hole, and the small diameter section can be accommodated in a second tool hole.

[0011] In another embodiment of the present invention, a first receiving groove is recessed in the first tool hole along the first axis, and a first magnetic attractor is embedded in the first receiving groove; a second receiving groove is recessed in the second tool hole along the second axis, and a second magnetic attractor is embedded in the second receiving groove; when the connecting part is received in the first tool hole, the small diameter section can be attracted to the first magnetic attractor; when the small diameter section is received in the second tool hole, the large diameter section is exposed in the second tool hole, and the small diameter section can be attracted to the second magnetic attractor.

[0012] In another embodiment of the present invention, the length of the first tool hole on the first axis is equal to the length of the connecting portion; the length of the second tool hole on the second axis is equal to the length of the small diameter segment.

[0013] In another embodiment of the present invention, the second connecting portion of the long rod is recessed with a pivot groove, and the first connecting portion of the short rod is disposed in the pivot groove; the first connecting portion of the short rod and the second connecting portion of the long rod are pivotally connected to each other by a pivot pin, and a positioning component is provided between the first connecting portion of the short rod and the second connecting portion of the long rod, so that the short rod and the long rod are positioned at a high torque working angle.

[0014] In another embodiment of the present invention, a first connecting portion is provided with a first pivot hole, a second connecting portion is provided with a second pivot hole, and a pivot pin is provided between the first pivot hole and the second pivot hole.

[0015] In another embodiment of the present invention, a plurality of positioning grooves are recessed on the outer periphery of the first connecting portion, and a third receiving groove is recessed along the second axis in the pivot groove; the positioning component has an elastic member and a positioning stop, the two ends of the elastic member abut against the bottom of the third receiving groove and the positioning stop respectively, and the elastic member pushes the positioning stop into one of the positioning grooves.

[0016] In another embodiment of the invention, the high-torque working angle is 90 degrees; the length of the short rod is less than or equal to half the length of the long rod.

[0017] Based on the above, the beneficial effects of the present invention are: it can select and use tool heads or screwdriver heads of different sizes to be assembled into the first tool hole or the second tool hole according to different application requirements, or use the attachment to connect to the first tool hole or the second tool hole for extension operation or quick rotation operation, thereby realizing a multi-purpose working mode.

[0018] Furthermore, the present invention can adjust the short rod and the long rod to a first working position or a second working position to meet different torque operation requirements. Attached Figure Description

[0019] Figure 1 This is a three-dimensional appearance schematic diagram of an embodiment of the present invention, showing that the short rod and the long rod are located in the first working position, and the attachment is sleeved on the long rod.

[0020] Figure 2 This is an exploded view of an embodiment of the present invention.

[0021] Figure 3 For the present invention Figure 1 The cross-sectional view taken from the AA section line shows that the short rod and the long rod are in the first working position.

[0022] Figure 4 This is a cross-sectional schematic diagram of an embodiment of the present invention, showing the short rod and the long rod in the second working position.

[0023] Figure 5This is a cross-sectional schematic diagram of an embodiment of the present invention, showing that the short rod and the long rod are located in the first working position, and the tool head is sleeved in the first tool hole of the short rod, and the attachment is connected to the second tool hole of the long rod.

[0024] Figure 6 This is a cross-sectional schematic diagram of an embodiment of the present invention, showing that the short rod and the long rod are in the first working position, and only the first tool hole of the short rod is connected to the tool head.

[0025] Figure 7 This is a cross-sectional schematic diagram of an embodiment of the present invention, showing that the short rod and the long rod are in the first working position, and the second tool hole of the long rod is fitted with a screwdriver tip, and the attachment is connected to the first tool hole of the short rod.

[0026] Figure 8 This is a three-dimensional appearance schematic diagram of an embodiment of the present invention, showing that the short rod and the long rod are located in the first working position, with the short rod sleeved with the tool head and the long rod sleeved with the wrench.

[0027] Figure 9 This is a three-dimensional appearance schematic diagram of an embodiment of the present invention, showing that the short rod and the long rod are located in the second working position, with the short rod sleeved with the tool head and the long rod sleeved with the screwdriver head.

[0028] Figure 10 This is a three-dimensional appearance schematic diagram of an embodiment of the present invention, showing that the short rod and the long rod are located in the first working position, with the short rod sleeved with the tool head and the long rod sleeved with the attachment and performing a fast rotation operation.

[0029] Explanation of reference numerals in the attached figures 1: Tool head; 2: Screwdriver tip; 3: Wrench; 10: Short shot; 11: Reception Department; 111: First tool hole; 112: First arc-shaped groove; 113: First container; 114: First magnetic chuck; 12: First connecting part; 121: Limiting surface; 122: First pivot hole; 123: Positioning groove; 20: Long pole; 21: Drive unit; 211: Second tool hole; 212: Second container; 213: Second magnetic chuck; 214: Connects to the outer perimeter; 22: Second connecting part; 221: Pivot slot; 222: Inner surface of the groove; 223: Second pivot hole; 224: Third container; 23: middle section; 231: Second arc-shaped groove; 30: Pivot pin; 40: Positioning component; 41: Elastic component; 42: Positioning switch; 50: Attachments; 51: Main body; 52: Connecting part; 521: Large diameter section; 522: Small path section; L1: First axis line; L2: Second axis. Detailed Implementation

[0030] To facilitate the explanation of the central idea of ​​the invention as stated in the above-described description of the invention, specific embodiments are now described. In these embodiments, various objects are depicted according to a scale, size, deformation, or displacement suitable for illustration, rather than being drawn to the scale of actual components.

[0031] The directional terms used in this invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", and "side", are merely directional terms in the diagram. Therefore, the directional terms used are for the purpose of explaining and understanding this invention, and not for limiting this invention, as stated above.

[0032] Please see Figures 1 to 10 As shown, this invention provides a miniature bending hand tool, which is pen-shaped and has the practical effects of being lightweight and easy to carry. The miniature bending hand tool includes: A short rod 10 has a receiving portion 11 and a first connecting portion 12 disposed away from the receiving portion 11 along a first axis L1. The end face of the receiving portion 11 has a recessed first tool hole 111. The cross-sectional shape of the first tool hole 111 is hexagonal, and the diameter of the first tool hole 111 is 1 / 4 inch. The first tool hole 111 can accommodate a tool head 1 with a size of 1 / 4 inch, such as... Figure 5 and Figure 8 The working end of the tool head 1 can be cross, hexagon, dodecagon, straight, star, rice-shaped, pentagonal center hole, hexagonal center hole, hexagonal ball head, snake eye, square head, three wings, swastika, etc. The present invention does not limit the working end type of the tool head 1.

[0033] Multiple first arc-shaped grooves 112 are continuously recessed along the first axis L1 on the outer periphery of the receiving part 11, such as... Figure 1and Figure 2 As shown; a first receiving groove 113 is recessed within the first tool hole 111 along the first axis L1, and a first magnetic attractor 114 is embedded in the first receiving groove 113, as shown. Figure 3 and Figure 5 As shown, when the tool head 1 is connected to the first tool hole 111, the first magnetic member 114 can attract the tool head 1 to achieve the purpose of quick connection.

[0034] The first connecting portion 12 has two limiting surfaces 121, which are planar and parallel to the first axis L1. The first connecting portion 12 has a first pivot hole 122 penetrating the two limiting surfaces 121. The end edge of the first connecting portion 12 is arc-shaped and has multiple positioning grooves 123 recessed. In this embodiment, the number of positioning grooves 123 is three, and the positioning grooves 123 are spaced 90 degrees apart from each other. Figure 2 , Figure 3 As shown.

[0035] A long rod 20 has a driving part 21 and a second connecting part 22 disposed away from the driving part 21 along a second axis L2. A middle section 23 is provided between the driving part 21 and the second connecting part 22. The outer periphery of the middle section 23 is continuously recessed with a plurality of second arc-shaped grooves 231 along the second axis L2. Figures 1 to 3 As shown; where the length of the short rod 10 is less than or equal to half the length of the long rod 20.

[0036] The end face of the drive unit 21 is recessed with a second tool hole 211. The cross-sectional shape of the second tool hole 211 is hexagonal, and the diameter of the second tool hole 211 is 4 mm. The second tool hole 211 can accommodate a 4 mm screwdriver bit 2. Figure 7 and Figure 9 The working end of the screwdriver bit 2 can be Phillips, hexagon, flathead, Torx, etc. The present invention does not limit the type of the working end of the screwdriver bit 2.

[0037] A second receiving groove 212 is recessed within the second tool hole 211 along the second axis L2, and a second magnetic element 213 is embedded in the second receiving groove 212, such as... Figure 3 and Figure 7 As shown, when the screwdriver bit 2 is connected to the second tool hole 211, the second magnetic member 213 can attract the screwdriver bit 2 to achieve the purpose of quick connection.

[0038] The drive unit 21 has a hexagonal connecting outer periphery 214, which allows the wrench 3 to be attached to provide a greater force application mode, such as... Figure 8 As shown. In this embodiment of the invention, the outer diameter of the connecting outer perimeter 214 is 1 / 4 inch, and the wrench 3 is a ratchet wrench.

[0039] Furthermore, the second connecting portion 22 of the long rod 20 is recessed with a pivot groove 221. The pivot groove 221 has two inner surfaces 222, which are planar and relatively parallel to the second axis L2. The second connecting portion 22 passes through the two inner surfaces 222 and has a second pivot hole 223. When the first connecting portion 12 of the short rod 10 is located in the pivot groove 221, the two limiting surfaces 121 and the two inner surfaces 222 face each other. A pivot pin 30 passes between the first pivot hole 122 of the first connecting portion 12 and the second pivot hole 223 of the second connecting portion 22. The pivot pin 30 pivotally connects the short rod 10 and the long rod 20, so that the long rod 20 and the short rod 10 are in a first working position (e.g., Figure 3 ) and a second work position (such as Figure 4 Transform between ).

[0040] Furthermore, a positioning component 40 is provided between the first connecting portion 12 of the short rod 10 and the second connecting portion 22 of the long rod 20, which enables the short rod 10 and the long rod 20 to be positioned at a high-torque working angle. (See also...) Figures 2 to 4 As shown, a third receiving groove 224 is recessed in the pivot groove 221 along the second axis L2; ​​the positioning assembly 40 has an elastic member 41 and a positioning stop 42, the two ends of the elastic member 41 respectively abut against the bottom of the third receiving groove 224 and the positioning stop 42, and the elastic member 41 pushes the positioning stop 42 into one of the positioning grooves 123; in this embodiment of the invention, the high torque working angle is 90 degrees.

[0041] An attachment 50 is detachably connected to the first tool hole 111 of the short rod 10 or the second tool hole 211 of the long rod 20. The attachment 50 can serve as an extension to increase the length of the short rod 10 or the long rod 20, providing the user with more convenient operation, or as... Figure 10 As shown, the attachment 50 is connected to the long rod 20, and the short rod 10 is connected to the tool head 1. The miniature bending hand tool is held with the fingers, and the index finger is placed on the attachment 50. In this way, the miniature bending hand tool can be quickly turned to achieve the purpose of fast rotation drive.

[0042] Furthermore, the attachment 50 has a main body 51 and a connecting portion 52 extending from the main body 51. The connecting portion 52 is stepped and has a large-diameter section 521 and a small-diameter section 522. The large-diameter section 521 connects the small-diameter section 522 and the main body 51. The connecting portion 52 can be accommodated in the first tool hole 111 (e.g., Figure 7 As shown), the small diameter section 522 can be accommodated in the second tool hole 211 (as shown). Figure 5As shown, the length of the first tool hole 111 on the first axis L1 is equal to the length of the connecting portion 52; the length of the second tool hole 211 on the second axis L2 is equal to the length of the small diameter section 522; wherein, when the connecting portion 52 is accommodated in the first tool hole 111, the small diameter section 522 can be attracted to the first magnetic member 114; when the small diameter section 522 is accommodated in the second tool hole 211, the large diameter section 521 is exposed in the second tool hole 211, and the small diameter section 522 can be attracted to the second magnetic member 213.

[0043] For the structural description in conjunction with the foregoing embodiment of the present invention, please refer to [link / reference]. Figure 5 As shown, in the first working position, the first axis L1 and the second axis L2 are coaxial. The first tool hole 111 is connected to a 1 / 4-inch tool head 1 and is attracted by the first magnetic member 114. The attachment 50 is connected to the second tool hole 211 of the long rod 20, thus providing the user with a general driving operation, or as... Figure 10 Fast-forward mode operation.

[0044] Please also refer to Figure 5 and Figure 6 As shown, in some applications, the present invention can also be used without the additional component 50 for general driving operations.

[0045] Please see Figure 7 As shown, in some usage scenarios, in the first working position, the second tool hole 211 is connected to a 4 mm screwdriver tip 2 and is attracted by the second magnetic member 213, while the attachment 50 is connected to the first tool hole 111 of the short rod 10.

[0046] Please see Figure 9 As shown, in the second working position, the first axis L1 and the second axis L2 intersect to form a high-torque working angle. The short rod 10 is sleeved on the tool head 1, and the long rod 20 is sleeved on the screwdriver head 2. The length of the short rod 10 serves as the lever arm to achieve high-torque drive operation. In some applications, it can also be done as follows... Figure 4 Using a 20mm long rod as the lever arm, high torque drive operation can also be achieved.

[0047] In summary, the present invention can achieve the following effects: 1. The miniature bending hand tool of the present invention can be used to connect tool heads 1 and screwdriver heads 2 of corresponding sizes by using the first tool hole 111 of the short rod 10 or the second tool hole 211 of the long rod 20 according to different application needs, or to use the attachment 50 for quick rotation operation, thereby realizing multi-purpose operation.

[0048] 2. The miniature bending hand tool of the present invention can adjust the short rod 10 and the long rod 20 to a first working position or a second working position to meet the needs of different torque operation modes.

[0049] The embodiments described above are merely illustrative of the present invention and are not intended to limit the scope of the invention. All modifications or variations made without departing from the spirit of the present invention are within the scope of protection intended by the present invention.

Claims

1. A miniature bending hand tool, characterized in that, include: A short rod has a receiving portion and a first connecting portion disposed away from the receiving portion along a first axis. The end face of the receiving portion is recessed with a first tool hole. The cross-sectional shape of the first tool hole is hexagonal, and the diameter of the first tool hole is 1 / 4 inch. A long rod has a driving part and a second connecting part disposed away from the driving part along a second axis. The end face of the driving part has a recessed second tool hole with a hexagonal cross-sectional shape and a diameter of 4 mm. The driving part has a hexagonal connecting outer periphery that can be used to attach a wrench. The second connecting part of the long rod is pivotally connected to the first connecting part of a short rod, allowing the long rod and the short rod to switch between a first working position and a second working position. In the first working position, the first axis and the second axis are coaxial; in the second working position, the first axis and the second axis intersect. as well as An attachment which is detachably connected to the first tool hole of the short rod or the second tool hole of the long rod.

2. The miniature bending hand tool as described in claim 1, characterized in that, The outer diameter of the outer perimeter of the connection is 1 / 4 inch.

3. The miniature bending hand tool as described in claim 1, characterized in that, The outer periphery of the connecting part is continuously recessed with a plurality of first arc-shaped grooves along the first axis; the long rod also has a middle section, which is integrally disposed between the driving part and the second connecting part, and the outer periphery of the middle section is continuously recessed with a plurality of second arc-shaped grooves along the second axis.

4. The miniature bending hand tool as described in claim 1, characterized in that, The attachment has a main body and a connecting portion extending from the main body. The connecting portion is stepped and has a large diameter section and a small diameter section. The large diameter section is connected between the small diameter section and the main body. The connecting portion is received in the first tool hole, and the small diameter section is received in the second tool hole.

5. The miniature bending hand tool as described in claim 4, characterized in that, A first receiving groove is recessed within the first tool hole along the first axis, and a first magnetic attractor is embedded in the first receiving groove; a second receiving groove is recessed within the second tool hole along the second axis, and a second magnetic attractor is embedded in the second receiving groove; when the connecting part is received in the first tool hole, the smaller diameter section is attracted to the first magnetic attractor; when the smaller diameter section is received in the second tool hole, the larger diameter section is exposed outside the second tool hole, and the smaller diameter section is attracted to the second magnetic attractor.

6. The miniature bending hand tool as described in claim 5, characterized in that, The length of the first tool hole on the first axis is equal to the length of the connecting portion; the length of the second tool hole on the second axis is equal to the length of the minor diameter segment.

7. The miniature bending hand tool as described in claim 1, characterized in that, The second connecting portion of the long rod is recessed with a pivot groove, and the first connecting portion of the short rod is located in the pivot groove; the first connecting portion of the short rod and the second connecting portion of the long rod are pivotally connected to each other by a pivot pin, and a positioning component is provided between the first connecting portion of the short rod and the second connecting portion of the long rod to position the short rod and the long rod in the second working position.

8. The miniature bending hand tool as described in claim 7, characterized in that, The first connecting part is provided with a first pivot hole, the second connecting part is provided with a second pivot hole, and the pivot pin is provided between the first pivot hole and the second pivot hole.

9. The miniature bending hand tool as described in claim 8, characterized in that, The outer periphery of the first connecting part is recessed with a plurality of positioning grooves, and a third receiving groove is recessed along the second axis in the pivot groove; the positioning assembly has an elastic member and a positioning stop, the two ends of the elastic member abut against the bottom of the third receiving groove and the positioning stop respectively, and the elastic member pushes the positioning stop into one of the positioning grooves.

10. The miniature bending hand tool as described in claim 9, characterized in that, The second working position is where the first axis intersects the second axis at a 90-degree angle; the length of the short rod is less than or equal to half the length of the long rod.

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