Wire stripper structure

Abstract

This invention relates to a wire stripper structure. The main body includes a first base and a second base. A clamping member is located on one side of the first base. A biting blade assembly is located on one side of the second base. A pair of handles includes a first handle assembly and a second handle assembly, the first handle assembly being pivotally connected to the first base, and the second handle assembly being pivotally connected to the second base. A cutting blade assembly is correspondingly mounted on the pair of handles. A pivot assembly is located within the main body and includes a central shaft, first and second torsion springs. One end of the first torsion spring abuts against the first handle assembly, and the other end abuts against the second handle assembly. One end of the second torsion spring is fixed to the central shaft, and the other end is fixed to the second base. The central shaft passes through the main body, the pair of handles, the first torsion spring, and the second torsion spring and is fixed within the main body. The pair of handles, through the relative opening and closing of the first torsion spring, can perform left and right cutting with the cutting blade assembly. The second base, through the second torsion spring, allows the biting blade assembly to perform up and down cutting; thereby extending the service life of the wire stripper and improving safety during use.

Description

[Technical Field]

[0001] This case relates to a hand tool, particularly a wire stripper structure. [Previous Technology]

[0002] Wire strippers are a common hand tool, mainly used to remove the outer insulation layer of wires or cables to expose the conductor inside, thereby making electrical connections. Furthermore, most wire strippers are equipped with a spring mechanism to return the stripper to its initial open state.

[0003] Furthermore, the springs in the aforementioned wire strippers are typically located between the two handles to ensure effective operation when the wire strippers are opened and closed. However, because the springs need to be precisely installed in specific positions between the handles, this increases the complexity of production and maintenance. Moreover, the springs between the handles are susceptible to impacts or compression from external objects, increasing the risk of spring deformation or breakage, and even causing them to jump out or shift, resulting in inconvenience in use. Therefore, how to extend the tool's service life and improve its safety is the research motivation of the applicant in this case.

[0004] In view of this, in order to achieve the above-mentioned objectives, the applicant has devoted himself to research and applied the theory, and finally proposed a design that is reasonable and effectively improves the above-mentioned deficiencies. [Summary of the Invention]

[0005] One objective of this application is to provide a wire stripper structure to extend the service life of the wire stripper and improve its safety during use.

[0006] To achieve the above objectives, this invention relates to a wire stripper structure. The body includes a first base and a second base respectively. A clamping member is disposed on one side of the first base. A biting blade assembly is disposed on one side of the second base. A pair of handle assemblies includes a first handle assembly and a second handle assembly, the first handle assembly being pivotally connected to the first base and the second handle assembly being pivotally connected to the second base. A cutting blade assembly is correspondingly disposed on the pair of handle assemblies. A pivot assembly is disposed in the body, including a central shaft and a first torsion spring and a second torsion spring located on opposite sides of the central shaft. One end of the first torsion spring abuts against the first handle assembly and the other end abuts against the second handle assembly, and one end of the second torsion spring is fixed to the central shaft and the other end is fixed to the second base. The central shaft passes through the body, the pair of handle assemblies, the first torsion spring, and the second torsion spring and is fixed in the body. The handle assembly can open and close relative to each other through the first torsion spring to perform left and right cutting through the cutting blade assembly, and the second base can cause the biting blade assembly to perform up and down cutting through the second torsion spring.

[0007] In one embodiment of this case, a first base is provided with a first jaw segment, and a surface of the first jaw segment is formed in a serrated shape, and a second base is provided with a second jaw segment corresponding to the first jaw segment.

[0008] In one embodiment of this case, the first base includes a first front plate and a first rear plate disposed opposite to each other, the first front plate is provided with a first front hole, the first rear plate is provided with a first rear hole, and the first jaw segment spans between the first front plate and the first rear plate; the second base includes a second front plate and a second rear plate disposed opposite to each other, the second front plate is provided with a second front hole, the second rear plate is provided with a second rear hole; and the central shaft is sequentially provided with the first front hole, the second front hole, the second rear hole and the first rear hole.

[0009] In one embodiment of this case, the wire stripper structure further includes a linkage group, which includes a first linkage and a second linkage. The two ends of the first linkage are respectively pivotally connected to a first clamping handle group and a clamping member, and the two ends of the second linkage are respectively pivotally connected to a second clamping handle group and a biting blade group.

[0010] In one embodiment of this case, the biting blade assembly includes a fixed blade and a movable blade, the fixed blade and the movable blade are arranged opposite to each other on both sides of the second jaw section, and one end of the second connecting rod is connected to the movable blade.

[0011] In one embodiment of this case, the wire stripper structure further includes a cover plate assembly, the cover plate assembly including a first cover plate and a second cover plate, the first cover plate being fixed to a first base and covering the clamping member, the clamping member being driven by the first connecting rod to move between the first cover plate and the first base; the second cover plate being fixed to the second base and covering the biting blade assembly, the movable blade being driven by the second connecting rod to move between the second cover plate and the second base.

[0012] In one embodiment of this case, the pivot assembly further includes a sleeve, which is sleeved between the central shaft and the first torsion spring.

[0013] In one embodiment of this case, the pivot assembly further includes a rear cover and a locking fastener, the rear cover covering the second torsion spring, and the locking fastener passing through the rear cover and engaging in the central shaft.

[0014] In one embodiment of this case, the first clamp handle group includes a first support arm with a first support hole, the second clamp handle group includes a second support arm with a second support hole, and the central shaft system passes through a first front hole, a second front hole, a first support hole, a first torsion spring, a second support hole, a second rear hole, a first rear hole and a rear cover.

[0015] In one embodiment of this case, the wire stripper structure further includes a spring arm assembly mounted on the body, including a fixed shaft, a latch arm, a third torsion spring, and a latch post. The fixed shaft is fixed to the first base and passes through the latch arm and the third torsion spring. The latch arm extends to the second base and is provided with a latch groove. One end of the third torsion spring is positioned on the first base, and the other end elastically abuts against the latch arm. The latch post is mounted on the second base. When the pair of pliers is pressed, the latch groove can latch the latch post and can return to its original position through the action of the third torsion spring.

[0016] Compared to conventional methods, the pivot assembly of the wire stripper structure in this case includes a central shaft and a first torsion spring and a second torsion spring located on opposite sides of the central shaft. One end of the first torsion spring abuts against the first handle assembly, and the other end abuts against the second handle assembly. One end of the second torsion spring is fixed to the central shaft, and the other end is fixed to the second base. The central shaft passes through the body, the pair of handle assemblies, the first torsion spring, and the second torsion spring and is fixed within the body. Accordingly, when the handle assemblies are opened and closed relative to each other, the cutting blade assembly can perform left and right cutting through the first torsion spring. Since the first and second torsion springs are located within the body and are not exposed to the external environment, the risk of deformation or breakage of the first and second torsion springs due to impact or pressure from external objects can be avoided, and even the situation of jumping out or shifting can be prevented. In addition, the first and second torsion springs are located within the body and are not exposed to the external environment, which can prevent dust from falling in and affecting operation, increasing the convenience and practicality of use.

Implementation Method

[0021] The detailed description and technical content of this case are explained below with reference to the accompanying drawings. However, the accompanying drawings are provided for reference and explanation only and are not intended to limit this case.

[0022] Please refer to Figures 1 and 2, which are three-dimensional appearance schematic diagrams of the wire stripper structure from two sides, respectively. The wire stripper structure 1 of this invention includes a body 10, a clamping member 20, a biting blade assembly 30, a pair of handle assemblies 40, a cutting blade assembly 50, and a pivot assembly 60. The clamping member 20 and the biting blade assembly 30 are attached to an upper side of the body 10. The pair of handle assemblies 40 are pivotally connected to a bottom side of the body 10, and the cutting blade assembly 50 is correspondingly disposed on the pair of handle assemblies 40. Furthermore, the pivot assembly 60 is disposed in the body 10 and includes a central shaft 61 and a first torsion spring 62 and a second torsion spring 63 located on opposite sides of the central shaft 61.

[0023] In this embodiment, the wire stripper structure 1 further includes a linkage assembly 70 and a baffle assembly 80. The pair of handles 40 is connected to the linkage assembly 70 to drive the clamping member 20 and the biting blade assembly 30 to actuate. Furthermore, the baffle assembly 80 is correspondingly disposed on both sides of the body 10. The clamping member 20 and the biting blade assembly 30 are respectively located and movable inside the baffle assembly 80. The wire stripper structure 1 will be described in more detail below.

[0024] Please also refer to Figures 3 and 4, which are exploded perspective views of the wire stripper structure from both sides. The main body 10 includes a first base 11 and a second base 12. The first base 11 is provided with a first jaw section 110, and one surface of the first jaw section 110 is serrated. The second base 12 is provided with a second jaw section 120 corresponding to the first jaw section 110.

[0025] In this embodiment, the first base 11 includes a first front plate 111 and a first rear plate 112 disposed opposite to each other. The first front plate 111 is provided with a first front hole 1110. The first rear plate 112 is provided with a first rear hole 1120. In addition, the first jaw segment 110 spans between the first front plate 111 and the first rear plate 112. Similarly, the second base 12 includes a second front plate 121 and a second rear plate 122 disposed opposite to each other. The second front plate 121 is provided with a second front hole 1210. The second rear plate 122 is provided with a second rear hole 1220. In addition, the central shaft 61 sequentially passes through the first front hole 1110, the second front hole 1210, the second rear hole 1220, and the first rear hole 1120.

[0026] The clamping member 20 is disposed on one side of the first base 11. The biting blade assembly 30 is disposed on one side of the second base 12. The clamping member 20 has an opening 21 corresponding to the first jaw section 110, and a serrated shape is formed on one surface of the opening. Furthermore, the biting blade assembly 30 includes a fixed blade 31 and a movable blade 32. The fixed blade 31 and the movable blade 32 are arranged opposite to each other on both sides of the second jaw section 120.

[0027] The pair of pliers handles 40 includes a first pliers handle group 41 and a second pliers handle group 42. The first pliers handle group 41 is pivotally connected to the first base 11. The second pliers handle group 42 is pivotally connected to the second base 12. Furthermore, the shearing blade group 50 is correspondingly disposed on the pair of pliers handles 40.

[0028] The pivot assembly 60 includes a central shaft 61 and a first torsion spring 62 and a second torsion spring 63 located on both sides of the central shaft 61. One end of the first torsion spring 62 abuts against the first clamping handle assembly 41, and the other end abuts against the second clamping handle assembly 42. One end of the second torsion spring 63 is fixed to the central shaft 61, and the other end is fixed to the second base 12. Furthermore, the central shaft 61 passes through the first base 11, the second base 12, the clamping handle assembly 40, the first torsion spring 62, and the second torsion spring 63, and is fixed in the body 10. Accordingly, the clamping handle assembly 40 can perform left and right cutting on the cutting blade assembly 50 by opening and closing relative to each other through the first torsion spring 62. In addition, the second base 12 can cause the biting blade assembly 30 to perform up and down cutting through the second torsion spring 63.

[0029] In this embodiment, the pivot assembly 60 further includes a sleeve 64. The sleeve 64 is fitted between the central shaft 61 and the first torsion spring 62 to prevent the first torsion spring 62 from contacting the central shaft 61 and to avoid friction on the central shaft 61 when the first torsion spring 62 rotates. In addition, the pivot assembly 60 also includes a rear cover 65 and a locking fastener 66. The rear cover 65 covers the second torsion spring 63. The locking fastener 66 passes through the rear cover 65 and is engaged in the central shaft 61.

[0030] It should be noted that the first clamp handle assembly 41 includes a first support arm 411, which has a first support hole 410. The second clamp handle assembly 42 includes a second support arm 421, which has a second support hole 420. In addition, the central shaft 61 passes through the first support hole 410 and the second support hole 420.

[0031] In this embodiment, the wire stripper structure 1 further includes a linkage assembly 70. The linkage assembly 70 includes a first linkage 71 and a second linkage 72. The two ends of the first linkage 71 are respectively pivotally connected to the first clamping handle assembly 41 and the clamping member 20, and the two ends of the second linkage 72 are respectively pivotally connected to the second clamping handle assembly 42 and the movable blade 32 of the biting blade assembly 30.

[0032] Furthermore, the wire stripper structure 1 further includes a cover plate assembly 80. The cover plate assembly 80 includes a first cover plate 81 and a second cover plate 82. The first cover plate 81 is fixed to the first base 11 and covers the clamping member 20. The clamping member 20 is driven by the first connecting rod 71 and moves between the first cover plate 81 and the first base 11. In addition, the second cover plate 82 is fixed to the second base 12 and covers the engagement blade assembly 30. The movable blade 32 is driven by the second connecting rod 72 and moves between the second cover plate 82 and the second base 12.

[0033] In this embodiment, the wire stripper structure 1 further includes a spring arm assembly 90 disposed on the body 10. The spring arm assembly 90 includes a fixed shaft 91, a latching arm 92, a third torsion spring 93, and a latching post 94. The fixed shaft 91 is fixed to the first base 11 and passes through the latching arm 92 and the third torsion spring 93. The latching arm 92 extends to the second base 12 and is provided with a latching groove 920. One end of the third torsion spring 93 is positioned on the first base 11, and the other end elastically abuts against the latching arm 92. The latching post 94 is disposed on the second base 12. Furthermore, when the pliers handle assembly is pressed, the latching groove 920 can latch the latching post 94, and can return to its original position through the action of the third torsion spring 93.

[0034] Please also refer to Figures 5 and 6, which are two sectional views of the wire stripper structure of this invention. As shown in Figure 5, the first handle assembly 41 of this invention further includes a first stop post 412 located on the first arm 411; the second handle assembly 42 further includes a second stop post 422 located on the second arm 421. Furthermore, one end of the first torsion spring 62 abuts against the first stop post 412, and the other end abuts against the second stop post 422. Accordingly, when the pair of handle assemblies 40 is pressed and drives the first arm 411 and the second arm 421, the two ends of the first torsion spring 62 will be pressed by the first stop post 412 and the second stop post 422 respectively, generating an elastic restoring force. It should also be noted that when the pair of clamp handles 40 is not pressed, the latch arm 92 of the spring arm assembly 90 is not engaged with the fixed shaft 91. At this time, the third torsion spring 93 is in a free state, and the biting blade assembly 30 and the shearing blade assembly 50 are both in a non-operating state.

[0035] As shown in Figure 6, the pivot assembly 60 of this invention is disposed in the body 10, including a central shaft 61, a first torsion spring 62, a second torsion spring 63, a sleeve 64, a rear cover 65, and a locking fastener 66. The central shaft 61 is sequentially connected to the first front plate 111 (first front hole 1110), the second front plate 121 (second front hole 1210), the first support arm 411 (first support hole 410), the first torsion spring 62, the second support arm 421 (second support hole 420), the second rear plate 122 (second rear hole 1220), the first rear plate 112 (first rear hole 1120), the second torsion spring 63, and the rear cover 65.

[0036] It is worth noting that the central shaft 61 does not rotate and is fitted with the first torsion spring 62 and the second torsion spring 63. The sleeve 64 is fitted between the central shaft 61 and the first torsion spring 62 to prevent the first torsion spring 62 from causing friction to the central shaft 61 when it rotates. In addition, the locking fastener 66 is screwed into the central shaft 61 to secure the rear cover 65 to the second torsion spring 63.

[0037] Please refer to Figure 7, which shows another embodiment of the wire stripper structure of this invention. This embodiment is largely the same as the previous embodiment. The wire stripper structure 1a includes a body 10a, a clamping member 20a, a biting blade assembly 30a, a pair of handle assemblies 40a, a cutting blade assembly 50a, a pivot assembly 60a, a connecting rod assembly 70a, a cover plate assembly 80a, and a spring arm assembly 90a. Furthermore, the difference between this embodiment and the previous embodiment lies in the length of the two fixed ends of the first torsion spring 62a of the pivot assembly 60a.

[0038] In this embodiment, the two fixed ends of the first torsion spring 62a extend to the handles of the pair of pliers 40a. Specifically, the pair of pliers 40a is provided with a first groove 401a in the first pliers 41a and a second groove 402a in the second pliers 42a. The two ends of the first torsion spring 62a extend and engage in the first groove 401a and the second groove 402a, respectively, so as to provide different elastic restoring forces when the pair of pliers 40a is pressed.

[0039] The above description is only a preferred embodiment of this case and is not intended to limit the scope of the patent in this case. Other equivalent changes that utilize the spirit of the patent in this case should all fall within the scope of the patent in this case. [Simplified Explanation of the Diagram]

[0017] Figures 1 and 2 are three-dimensional appearance diagrams of the wire stripper structure from both sides in this case;

[0018] Figures 3 and 4 are three-dimensional exploded schematic diagrams of the wire stripper structure in this case from two sides;

[0019] Figures 5 and 6 are two sectional views of the wire stripper structure in this case;

[0020] Figure 7 shows another embodiment of the wire stripper structure in this case.

Claims

1. A wire stripper structure, comprising: a body including a first base and a second base correspondingly disposed thereon; a clamping member disposed on one side of the first base; a biting blade assembly disposed on one side of the second base; a pair of handle assemblies including a first handle assembly and a second handle assembly, the first handle assembly being pivotally connected to the first base, and the second handle assembly being pivotally connected to the second base; a cutting blade assembly correspondingly disposed on the pair of handle assemblies; and a pivot assembly disposed in the body, including a central shaft and a first torsion spring and a second torsion spring located on opposite sides of the central shaft, one end of the first torsion spring abutting the first handle assembly and the other end abutting the second handle assembly, one end of the second torsion spring being fixed to the central shaft and the other end being fixed to the second base; wherein... The central shaft passes through the body, the pair of pliers, the first torsion spring, and the second torsion spring and is fixed in the body. The pair of pliers opens and closes relative to each other through the first torsion spring, enabling the shearing blade assembly to perform left and right shearing. The second base, through the second torsion spring, enables the biting blade assembly to perform up and down cutting.

2. The wire stripper structure as described in claim 1, wherein the first base is provided with a first jaw section, and a surface of the first jaw section is serrated, and the second base is provided with a second jaw section corresponding to the first jaw section.

3. The wire stripper structure as described in claim 2, wherein the first base includes a first front plate and a first rear plate disposed opposite to each other, the first front plate having a first front hole, the first rear plate having a first rear hole, and the first jaw segment spanning between the first front plate and the first rear plate; the second base includes a second front plate and a second rear plate disposed opposite to each other, the second front plate having a second front hole, the second rear plate having a second rear hole; and the central shaft sequentially passes through the first front hole, the second front hole, the second rear hole, and the first rear hole.

4. The wire stripper structure as described in claim 2 further includes a linkage assembly comprising a first linkage and a second linkage, the two ends of the first linkage being pivotally connected to the first handle assembly and the clamping member, and the two ends of the second linkage being pivotally connected to the second handle assembly and the engagement blade assembly.

5. The wire stripper structure as described in claim 4, wherein the jaw assembly includes a fixed blade and a movable blade, the fixed blade and the movable blade being arranged opposite to each other on both sides of the second jaw section, and one end of the second link being connected to the movable blade.

6. The wire stripper structure as described in claim 4 further includes a baffle assembly comprising a first baffle and a second baffle, the first baffle being fixed to a first base and covering the clamping member, the clamping member being movable between the first baffle and the first base by the first connecting rod; the second baffle being fixed to the second base and covering the engagement blade assembly, the movable blade being movable between the second baffle and the second base by the second connecting rod.

7. The wire stripper structure as described in claim 1, wherein the pivot assembly further includes a sleeve fitted between the central shaft and the first torsion spring.

8. The wire stripper structure as described in claim 3, wherein the pivot assembly further includes a rear cover and a locking fastener, the rear cover covering the second torsion spring, and the locking fastener passing through the rear cover and engaging in the central shaft.

9. The wire stripper structure as described in claim 8, wherein the first handle assembly includes a first arm with a first support hole, the second handle assembly includes a second arm with a second support hole, and the central shaft system passes through the first front hole, the second front hole, the first support hole, the first torsion spring, the second support hole, the second rear hole, the first rear hole, and the rear cover.

10. The wire stripper structure as described in claim 1, further comprising a spring arm assembly disposed on the body, including a fixed shaft, a latching arm, a third torsion spring, and a latching post; the fixed shaft is fixed to the first base and passes through the latching arm and the third torsion spring; the latching arm extends to the second base and is provided with a latching groove; one end of the third torsion spring is positioned on the first base, and the other end elastically abuts against the latching arm; the latching post is disposed on the second base, wherein... When the clamp handles are pressed together, the latch can engage the latch post and return to its original position by the action of the third torsion spring.

Images