TWI849641B - Wire stripper - Google Patents

Abstract

A wire stripper includes a fixed handle, a fixed clamp plate, a movable handle, a movable plier splint, a cutting and pulling mechanism and a drive operating mechanism. The drive operating mechanism includes a push component, a counter-pressure component and a working member. The push component is connected to the movable handle at one end and connected to the working member at the other end. The counter-pressure component is fixed to the fixed handle. The working member is connected to the cutting and pulling mechanism at one end and connected to the counter-pressure component at the other end. Wherein the lever-to-turn movable handle rotates towards the fixed handle, by the push component to move the working member and the cutting and pulling mechanism together in the direction of the counter-pressure component.

Description

Wire stripping tools

The present invention relates to a hand tool, in particular to a wire stripping tool.

In general maintenance and plumbing work, it is usually necessary to remove the insulation layer of various cables to expose the core wire inside the cable for subsequent electrical connection operations. Therefore, a wire stripping clamp has appeared on the market to easily remove the insulation layer of the cable without damaging the core wire inside, making the wire stripping process smoother.

The existing wire stripping clamp includes a first handle, a second handle, a first pressing member, a second pressing member and a wire stripping assembly. The first handle, the second handle, the first pressing member and the second pressing member are connected to each other. The wire stripping assembly is installed between the first pressing member and the second pressing member and moves along with the first handle and the second handle. Thus, by pressing the first handle and the second handle, the first pressing member, the second pressing member and the wire stripping assembly can be driven to perform the wire stripping action.

However, the above-mentioned wire stripping clamp has the following problems: since the related components are arranged in a limited space, the force arm cannot be effectively increased, which leads to considerable effort during use. In addition, due to too many assembly components, the wire stripping clamp has problems such as cumbersome assembly, unstable structure and increased cost.

In view of this, the author has devoted himself to the research and application of the above existing technologies, trying his best to solve the above problems, which has become the goal of the author's improvement.

One object of the present invention is to provide a wire stripping tool which can achieve labor-saving operation and stable operation.

In order to achieve the above-mentioned purpose, the present invention provides a wire stripping tool, including a fixed handle, a fixed clamping plate, a movable handle, a movable clamping plate, a cutting and pulling mechanism and a driving mechanism, wherein the fixed clamping plate is connected to the fixed handle; the movable handle is pivoted to the fixed handle and formed below the fixed clamping plate; the movable clamping plate is pivoted to the fixed handle and formed above the fixed clamping plate; the cutting and pulling mechanism is arranged between the fixed clamping plate and the movable clamping plate. The driving mechanism includes a pushing assembly, a pressing assembly and an actuating member, one end of the pushing assembly is connected to the movable handle, and the other end is movably connected to the actuating member, the pressing assembly is fixed to the fixed handle, one end of the actuating member is connected to the cutting and pulling mechanism, and the other end is elastically pressed by the pressing assembly; when the movable handle is turned toward the fixed handle, the actuating member and the cutting and pulling mechanism are driven by the pushing assembly to move toward the pressing assembly to perform wire stripping processing.

The present invention also has the following effect: by setting the strip slide groove of the actuator, each cutting knife can ensure that the cutting and pulling mechanism does not shift when cutting the cable.

The detailed description and technical contents of the present invention are described below with reference to the accompanying drawings. However, the accompanying drawings are only provided for reference and description and are not intended to limit the present invention.

Please refer to FIG. 1 to FIG. 5 , the present invention provides a wire stripping tool, which is a wire stripping clamp in this embodiment, and mainly includes a fixed handle 10, a fixed clamp plate 20, a movable handle 30, a movable clamp plate 40, a cutting and pulling mechanism 50 and a driving operation mechanism 60.

The fixed clamp plate 20 is formed by extending from the fixed handle 10; the movable handle 30 is pivoted to the fixed handle 10 and is formed below the fixed clamp plate 20; the movable clamp plate 40 is pivoted to the fixed handle 10 and is formed above the fixed clamp plate 20; the cutting and pulling mechanism 50 is arranged between the fixed clamp plate 20 and the movable clamp plate 40; the driving operation mechanism 60 is mainly It includes a pushing assembly 61, a pressing assembly 62 and an actuating member 63. One end of the pushing assembly 61 is connected to the movable handle 30, and the other end of the pushing assembly 61 is movably connected to the actuating member 63. The pressing assembly 62 is fixed to the fixed handle 10. One end of the actuating member 63 is connected to the cutting and pulling mechanism 50, and the other end of the actuating member 63 is elastically pressed by the pressing assembly 62.

In one embodiment, the fixed handle 10 mainly includes a head 11, a handle 12 extending downwardly from the head 11, and a throat 13 extending downwardly from the head 11 and offset from the handle 12. The movable handle 30 is passed through a first pivot A1, thereby realizing a pivot connection with the throat 13 of the fixed handle 10.

In one embodiment, the movable clamp plate 40 passes through the fixed handle 10 through a second pivot A2, thereby realizing a pivot connection with the fixed handle 10. An actuated arm 41 extends from the right side of the movable clamp plate 40, and a baffle 111 is provided on the side of the head 11 of the fixed handle 10 to limit the rotational travel of the actuated arm 41. In addition, a lower clamping tooth 21 is installed at the front end of the fixed clamp plate 20, and an upper clamping tooth 42 is connected to the front end of the movable clamp plate 40. The upper clamping tooth 42 is configured corresponding to the lower clamping tooth 21 to be connected to a common clamping cable. In addition, a lower groove 22 and a scale 23 are provided on the inner side of the lower clamping tooth 21.

In one embodiment, the movable handle 30 passes through one end of the pushing assembly 61 via a third axis A3, so that the movable handle 30 can drive the actuator 63 and the cutting and pulling mechanism 50 to move together through the pushing assembly 61.

In one embodiment, the cutting and pulling mechanism 50 is disposed between the fixed clamping plate 20 and the movable clamping plate 40, and mainly comprises a lower pressing member 51, an upper pressing member 52, a stop member 53, an elastic body 54 and a latch 55. The upper pressing member 52, the lower pressing member 51 and the aforementioned actuating member 63 are connected through the latch 55, and the stop member 53 is connected to the movable clamping plate 40. 53 is movably arranged on the lower pressing member 51 and configured corresponding to the aforementioned scale 23; the elastic body 54 is elastically clamped between the lower pressing member 51 and the upper pressing member 52; a lower cutting knife 511 is provided at the front end of the lower pressing member 51, and an upper cutting knife 521 is provided at the front end of the upper pressing member 52 and configured corresponding to the lower cutting knife 511.

In one embodiment, a guide groove 112 (see FIG. 5 ) is provided in the head portion 11 of the fixed handle 10 to provide the actuator 63 with movement in or out. The actuator 63 is provided with a strip slide groove 631 and a directional groove 632, wherein the strip slide groove 631 is configured longitudinally and the directional groove 632 is configured transversely. The directional groove 632 is penetrated by a first fixing pin B1 and fixed to the fixed handle 10, thereby limiting the actuator 63 to only be able to perform transverse reciprocating movement.

Please refer to FIG. 4 . In one embodiment, the push assembly 61 mainly includes two push rods 611 and an elastic body 615. A plug shaft 612 is inserted into the strip-shaped slide groove 631 of the actuating member 63 and each push rod 611, so as to realize the movable connection between each push rod 611 and the actuating member 63. In addition, a roller 613 is sleeved on the outer side of each push rod 611 of the plug shaft 612, so that when the movable handle 30 is reset, it contacts the first fixing pin B1, thereby playing the role of stopping, shock absorption and noise reduction. In addition, a plug rod 614 is inserted into each push rod 611 and provides one end of the elastic body 615 with positioning. Furthermore, the movable handle 30 has a pressure plate 32 inside (see FIG. 5 ), and the elastic body 615 mainly includes a ring 616 and two first arms 617 and a second arm 618 extending from the ring 616. The third pivot A3 is the ring 616 through which the movable handle 30, each push rod 611 and the elastic body 615 are passed. Each first arm 617 elastically abuts against the plug rod 614, and the second arm 618 elastically abuts against the pressure plate 32 of the movable handle 30, so as to provide the movable handle 30 with a return to its original position. The first arm 617 can also be a single-arm design.

In one embodiment, the pressure component 62 is installed at the junction of the head 11 and the handle 12 of the fixed handle 10, and is positioned by passing a second fixing pin B2. The pressure component 62 mainly includes a base 621 and an elastic element 625. The base 621 is provided with a groove 622, and a pin 623 is installed on the base 621, and a block 624 is formed at the rear of the groove 622. The elastic element 625 mainly includes a ring 626 and two first elastic arms 627 and a second elastic arm 628 extending from the ring 626. The ring 626 is accommodated in the aforementioned receiving groove 622, and then positioned by a latch 623 penetrating the base 621 and the ring 626. The end of each first elastic arm 627 abuts against the block 624, and the end of the second elastic arm 628 abuts against the aforementioned actuating member 63, thereby providing the actuating member 63 with a return. The first elastic arm 627 can also be a single-branch design.

In one embodiment, the wire stripping tool of the present invention further includes a splitting tool 70. A groove 31 is provided at the top of the movable handle 30. The splitting tool 70 mainly includes a fixed knife 71 and a movable knife 72. The fixed knife 71 is installed at the throat 13 of the fixed handle 10, and the movable knife 72 is installed in the groove 31 of the movable handle 30 and is configured corresponding to the fixed knife 71. Through the penetration of the aforementioned first axis A1, in the process of turning the movable handle 30, the movable knife 72 can perform a cable cutting operation relative to the fixed knife 71.

In one embodiment , the wire stripping tool of the present invention further includes a cutting depth adjustment mechanism 80, which is disposed between the movable clamping plate 40 and the cutting pull-off mechanism 50. By adjusting and shifting the cutting depth adjustment mechanism 80, the opening width of the lower pressing member 51 and the upper pressing member 52 is limited, so that it can be adapted to the specifications of various cables.

Please refer to FIG. 6 and FIG. 7. During operation, a cable 9 is placed between the upper clamping teeth 42 and the lower clamping teeth 21, and the end face of the cable 9 is pressed against the stopper 53. When the movable handle 30 is turned toward the fixed handle 10, the movable clamping plate 40 drives the upper pressing member 52 to close toward the lower pressing member 51, and the cable 9 is clamped by the upper clamping teeth 42 and the lower clamping teeth 21. The upper cutting knife 521 and the lower cutting knife 511 are clamped, and the sheath of the cable 9 is cut. At this time, the insertion shaft 612 of each push rod 611 will shift toward the upper side of the strip slide groove 631, and the first fixing pin B1 will be at the right end of the directional groove 632 of the actuator 63, so as to ensure that the cutting and pulling mechanism 50 does not shift to perform the cutting process of the cable 9 (as shown in FIG. 6).

When the movable handle 30 is continuously turned toward the fixed handle 10, and the force is greater than the elastic force of the elastic element 625 of the pressing assembly 62, each push rod 611 will drive the actuator 63 and the cutting and pulling mechanism 50 to move toward the pressing assembly 62, and at the same time, the upper cutting knife 521 and the lower cutting knife 511 will pull the coating layer of the cable 9 away (as shown in FIG. 7). The above structure has the function of delaying the time of pulling away the coating layer of the cable 9 after the cutting and pulling mechanism 50 cuts, so that the overall operation process is more stable and smooth.

In summary, the wire stripping tool of the present invention can achieve the intended purpose and solve the lack of knowledge. It is also extremely novel and progressive and fully meets the requirements for invention patent application. Therefore, an application is filed in accordance with the Patent Law. We sincerely request that the patent of this case be approved in detail to protect the rights of the inventor.

10: Fixed handle 11: Head 111: Baffle 112: Guide groove 12: Handle 13: Throat 20: Fixed clamp plate 21: Lower clamping teeth 22: Lower groove 23: Scale 30: Movable handle 31: Embossed groove 32: Pressure plate 40: Movable clamp plate 41: Actuated arm 42: Upper clamping teeth 50: Cutting and pulling mechanism 51: Lower pressing piece 511: Lower cutting knife 52: Upper pressing piece 521: Upper cutting knife 53: Stopper 54: Elastic body 55: Latch 60: Driving mechanism 61: Pushing assembly 611: Push rod 612: Insert shaft 613: Roller 614: Insert rod 615: Elastic body 616: Ring 617: First arm 618: Second arm 62: Pressure assembly 621: Base 622: Receptacle 623: Latch 624: Block 625: Elastic element 626: Ring 627: First elastic arm 628: Second elastic arm 63: Actuator 631: Strip slide 632: Orientation groove 70: Splitting tool 71: Fixed tool 72: Movable tool 80: Cutting depth adjustment mechanism A1: First pivot A2: Second pivot A3: Third pivot B1: First fixing pin B2: Second fixing pin 9: Cable

FIG. 1 is a perspective view of the wire stripping tool assembly of the present invention.

FIG. 2 is an exploded view of the wire stripping tool of the present invention.

FIG. 3 is another exploded view of the wire stripping tool of the present invention.

FIG. 4 is an exploded view of the driving mechanism of the present invention.

FIG. 5 is a cross-sectional view of the wire stripping tool assembly of the present invention.

FIG6 is a cross-sectional view of the wire stripping tool of the present invention when being used for cutting.

FIG. 7 is a cross-sectional view of the wire stripping tool of the present invention when being used for pulling.

10: Fixed handle 11: Head 111: Baffle 112: Guide groove 12: Handle 13: Throat 20: Fixed clamp plate 21: Lower clamping teeth 30: Movable handle 32: Pressure plate 42: Upper clamping teeth 51: Lower press fitting 511: Lower cutting knife 52: Upper press fitting 521: Upper cutting knife 53: Stopper 54: Elastic body 55: Latch 61: Push assembly 612: Insert shaft 614: Insert rod 615: Elastic body 62: Pressure assembly 623: Latch 625: Elastic element 63: Actuator 631: Strip slide 632: Orientation slot 70: Splitting tool 71: Fixed tool 72: Movable tool A1: First pivot A2: Second pivot A3: Third pivot B1: First fixed pin B2: Second fixed pin

Claims (9)

A wire stripping tool comprises: a fixed handle; a fixed clamping plate connected to the fixed handle; a movable handle pivotally connected to the fixed handle and formed below the fixed clamping plate; a movable clamping plate pivotally connected to the fixed handle and correspondingly formed above the fixed clamping plate; a cutting and pulling mechanism disposed between the fixed clamping plate and the movable clamping plate; a driving mechanism comprising a pushing assembly, a pressing assembly and an actuating member, one end of the pushing assembly being connected to the movable handle and the other end being movably connected to the movable handle; The actuator is connected to the fixed handle, the pressure assembly is fixed to the fixed handle, one end of the actuator is connected to the cutting and pulling mechanism, and the other end is elastically pressed by the pressure assembly; and a first fixed pin, the actuator is provided with a directional groove, the first fixed pin passes through the directional groove and is fixed to the fixed handle, thereby limiting the moving direction of the actuator; wherein, when the movable handle is turned toward the fixed handle, the actuator and the cutting and pulling mechanism are driven by the push assembly to move toward the pressure assembly to perform wire stripping processing. The wire stripping tool as described in claim 1 further includes a first pivot, the fixed handle includes a head, a handle extending downward from the head, and a throat extending from the head and offset from the handle, and the movable handle is passed through the first pivot to be pivotally connected to the throat. The wire stripping tool as described in claim 2 further includes a splitting tool, the movable handle is provided with a slot, the splitting tool includes a fixed tool and a movable tool, the fixed tool is installed in the throat, the movable tool is installed in the slot and corresponds to the fixed tool configuration, and the first axis passes through the fixed tool and the movable tool. The wire stripping tool as described in claim 1 further includes a second pivot, the movable clamp plate is passed through the second pivot to be pivotally connected with the fixed handle, the movable clamp plate extends with an actuated arm, and the fixed handle is provided with a baffle plate for limiting the rotational travel of the actuated arm. The wire stripping tool as described in claim 1 further includes a third pivot, and the movable handle passes through one end of the push assembly through the third pivot, so that the movable handle can drive the actuator and the cutting and pulling mechanism to move together through the push assembly. The wire stripping tool as described in claim 1 further includes a second fixing pin, the pressing assembly includes a base and an elastic element, the base is fixed to the fixed handle through the second fixing pin, the base has a latch and a groove, a baffle is formed in the groove, the elastic element includes a ring and a first elastic arm and a second elastic arm extending from the ring, the ring is accommodated in the groove, the base and the ring are penetrated by the latch to position the elastic element, the first elastic arm abuts against the baffle, and the second elastic arm abuts against the actuating member. The wire stripping tool as described in claim 1, wherein the pushing assembly includes two push rods and an insertion shaft, and the actuating member is provided with a strip slide groove, through which the insertion shaft passes through the strip slide groove and each of the push rods, so that each of the push rods can be movably connected to the actuating member. The wire stripping tool as described in claim 7, wherein the pushing assembly further includes two rollers, each of which is sleeved on the plug shaft and is located on the outer side of each push rod. The wire stripping tool as described in claim 7 further comprises a third pivot, the pushing assembly further comprises a plunger and an elastic body, the movable handle has a pressure plate, the plunger penetrates each of the push rods, the elastic body comprises a ring and a first arm and a second arm extending from the ring, the third pivot penetrates the movable handle, each of the push rods and the ring, the first arm elastically abuts against the plunger, and the second arm elastically abuts against the pressure plate.

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