A Handheld Device with Cable Wires Stripping and Cutting Functions and Method of Operation

Abstract

ABSTRACT: Title: A Handheld Device with Cable Wires Stripping and Cutting Functions and Method of Operation The present disclosure proposes a compact handheld device (100) that comprises a handle (102), a stripping assembly (104), a cutting unit (106), a regulating button (108), a switching button (110), an indicator light (112), a pair of electromagnets (114A, 114B) and a controller (117). The handheld device 100 significantly enhances the precision and efficiency of cutting and stripping electrical cables. By utilizing the electromagnets (114A, 114B) and the controller (117), the handheld device (100) ensures accurate and repeatable operations, minimizing human error and inconsistencies in cable cutting and stripping. The handheld device (100) integrates a power-assisted mechanism that reduces manual effort during cable cutting and stripping. The inclusion of dual electromagnets (114A, 114B) allows for smooth and controlled attraction and repulsion, ensuring the handheld device (100) operates with minimal strain on the user.

Specification

Description:DESCRIPTION:
Field of the invention:
[0001] The present disclosure generally relates to the technical field of hand-operated devices, and in specific relates to a compact, battery-powered device that utilizes electromagnets and a controller for precise, efficient, and ergonomic cable cutting and stripping functions.
Background of the invention:
[0002] In the electrical industry, cable stripping is a fundamental task essential for creating clean, reliable connections in wiring systems. Electricians and technicians frequently perform wire stripping to expose the conductive cores of cables, preparing them for termination or splicing. The precision and ease of this process are crucial for ensuring both safety and efficiency in electrical installations, whether in household wiring projects or large-scale industrial applications. Despite the importance of accurate wire stripping, manual cable stripping devices present several challenges that can impede productivity and lead to long-term physical strain on users.
[0003] Manual wire stripping devices require users to repeatedly apply force to cut through cable insulation and expose the inner conductors. While effective, this repetitive action often leads to hand fatigue, pain, and strain, particularly during prolonged use. Additionally, many of these devices combine both cutting and stripping functions in a single mechanism, requiring the user to apply increased force to operate both actions simultaneously. This not only exacerbates physical strain but can also cause unintended wear on the stripping components, reducing the device's longevity. In professional environments, where large volumes of cables need to be stripped daily, this repetitive manual process poses a significant ergonomic challenge. Workers are susceptible to repetitive strain injuries (RSIs), while the devices themselves can degrade quickly due to simultaneous activation of cutting and stripping mechanisms, even when only one function is needed.
[0004] Several technologies have been developed to address these issues. Manual wire strippers are designed with ergonomic handles to reduce strain, while some advanced versions include adjustable cutting depths and wire gauges for greater precision. There are also semi-automated electric strippers available on the market, which require less physical effort by incorporating motors to assist with the cutting and stripping actions. Additionally, some high-end devices integrate multi-functionality, allowing users to cut, strip, and crimp wires with a single device. These devices are often equipped with adjustable blade positions to prevent unnecessary wear on specific components. However, despite these improvements, most solutions still involve repetitive manual effort, which can lead to user fatigue and discomfort over time.
[0005] Even with ergonomic design and electric-assisted devices, users are still required to engage manually with the device, often needing to switch between cutting and stripping operations by applying significant force. In many devices, both cutting and stripping mechanisms are engaged simultaneously, even when only one action is required. This leads to increased wear on components, especially the stripping blades, reducing the overall lifespan of the device. Continuous manual operation, even with ergonomic designs, can still result in strain or repetitive stress injuries, particularly when dealing with thicker cables or when working for extended periods.
[0006] Therefore, there is a need for a compact, battery-powered device that utilizes electromagnets and a controller for precise, efficient, and ergonomic cable cutting and stripping. There is also a need for a compact, battery-powered device that integrates mechanical and electromagnetic components to automate the attraction and repulsion processes necessary for performing these tasks, making it suitable for various electrical and electronics applications, including wiring installations and maintenance in industrial, commercial, and residential environment.
Objectives of the invention:
[0007] The primary objective of the invention is to provide for a compact, battery-powered device that utilizes electromagnets and a controller for precise, efficient, and ergonomic cable cutting and stripping.
[0008] The other objective of the invention is to provide a compact, battery-powered device that integrates mechanical and electromagnetic components to automate the attraction and repulsion processes necessary for performing cutting and stripping.
[0009] The other objective of the invention is to provide a hand-operated device that significantly enhances the precision and efficiency of cutting and stripping electrical cables.
[0010] Another objective of the invention is to integrate a power-assisted mechanism that reduces manual effort during cable cutting and stripping.
[0011] Yet another objective of the invention is to improve a user's comfort and reduce fatigue by incorporating an ergonomic handle and strategically positioned controls, such as the switching and regulating buttons.
[0012] Another objective of the invention is to provide a single device capable of performing both cable cutting and stripping.
[0013] Yet another objective of the invention is to create a compact, lightweight, and portable device that can be easily carried and used in various work environments, including confined spaces. Its battery-powered operation ensures that the device can be used in locations without access to external power sources.
Summary of the invention:
[0014] The present disclosure proposes a handheld device with cable wires stripping and cutting functions and method of operation. The following presents a simplified summary in order to provide a basic understanding of some aspects of the claimed subject matter. This summary is not an extensive overview. It is not intended to identify key/critical elements or to delineate the scope of the claimed subject matter. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
[0015] In order to overcome the above deficiencies of the prior art, the present disclosure is to solve the technical problem to provide a compact, battery-powered device that utilizes electromagnets and a controller for precise, efficient, and ergonomic cable cutting and stripping.
[0016] According to an aspect, the invention provides a compact handheld device for automated cable wire stripping and cutting. The handheld device includes a handle, a stripping assembly, a cutting unit, a regulating button, a switching button, an indicator light, and a controller. The handle is configured to house a power source, which is electrically connected to the switching button. The switching button is spring-loaded, allowing it to automatically return to a neutral position after completing either a cutting or stripping operation. The regulating button, which protrudes from the handle, can be selectively moved between a first position to initiate a cutting operation and a second position to initiate a stripping operation.
[0017] A pair of electromagnets is positioned within the handle and electrically connected to the power source through the controller. The electromagnets consist of a first electromagnet and a second electromagnet. The controller is designed to selectively activate the first electromagnet for the cutting operation when the regulating button is in the first position, and to activate both the first and second electromagnets for the stripping operation when the regulating button is in the second position. The controller regulates the activation of the electromagnets based on the position of the regulating button.
[0018] The stripping assembly is attached to the handle and consists of a first jaw, a second jaw, and a stripping unit located within the mouth formed by the two jaws. The first jaw includes an inclined bar, which is attached to a first iron piece. The first iron piece is configured to initiate a back-and-forth motion of the first jaw via the inclined bar upon activation of the first electromagnet when the regulating button is in either the first position or second position. The second jaw is positioned below the first jaw. The first jaw is designed to move in a longitudinal direction relative to the handle when activated by the first electromagnet, enabling both cutting and stripping operations. The indicator light is positioned on the handle. The indicator light is configured to provide visual feedback regarding operation modes of the handheld device.
[0019] The stripping unit is arranged within a mouth formed by the first jaw and the second jaw. It is configured to move laterally within the mouth when the pair of electromagnets is activated and the regulating button is in the second position, enabling wire stripping. The cutting unit is positioned on the handle and consists of a fixed blade, a movable blade, and a reciprocating shaft. The movable blade is responsible for performing the cutting operation. The reciprocating shaft connects the movable blade to the regulating button and moves linearly in response to the activation of the first electromagnet, transferring motion to the movable blade for cutting. The reciprocating shaft can be detachably attached to the first iron piece when the regulating button is in the first position, connecting the movable blade to the inclined bar of the first jaw. This allows the activation of the first electromagnet to move the reciprocating shaft and the movable blade, thereby enabling wire cutting.
[0020] In one embodiment, the first jaw and the second jaw are configured with grooves designed to movably hold the stripping unit. One end of the first jaw and the second jaw includes a male wire holder and a female wire holder, respectively. The stripping unit consists of a pair of guide bars, an adjuster, and a wire stripper. The guide bars are pivotally connected to each other via a pivoting joint, which is attached to a second iron piece. This configuration allows the stripping unit to function efficiently within the jaws, enabling precise wire stripping operations.
[0021] The pair of guide bars is configured to hold the starting end of the wire and slide within the mouth due to the movement of the second iron piece upon activation of the second electromagnet for the stripping operation. The adjuster is slidably positioned on at least one of the guide bars and is designed to provide different lengths for stripping the wire. The wire stripper is positioned at one end of each guide bar. When the pair of guide bars slides within the mouth, driven by the second iron piece upon activation of the second electromagnet, and when the regulating button is in the second position, the wire strippers on each guide bar are configured to remove the starting end of the wire.
[0022] According to another aspect, the invention provides a method for cutting and stripping wires using a compact handheld device. The method comprises, positioning, by a user, a regulating button selectively in the first position to activate a cutting operation or in a second position to activate the stripping operation. The method comprises, activating, by the user, a first electromagnet when the regulating button is in the first position, and simultaneously connecting a first iron piece to a reciprocating shaft. The method comprises, enabling the movable blade to moves within the cutting unit upon activation of the first electromagnet, thereby performing the cutting operation.
[0023] The method comprises, activating the first electromagnet and the second electromagnet when the regulating button is in the second position. The activation of the first electromagnet and the second electromagnet enables the first jaw of the stripping assembly to move via the inclined bar, creating a clamping action between the first jaw and the second jaw. The method comprises, enabling the stripping unit to move within the first jaw and the second jaw in a lateral direction, thereby performing the stripping operation.
[0024] Further, objects and advantages of the present invention will be apparent from a study of the following portion of the specification, the claims, and the attached drawings.
Detailed description of drawings:
[0025] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an embodiment of the invention, and, together with the description, explain the principles of the invention.
[0026] FIG. 1A illustrates a perspective view of a compact handheld device for automated cable wires stripping and cutting, in accordance to an exemplary embodiment of the invention.
[0027] FIG. 1B illustrates an internal view of the handheld device for automated cable wires stripping and cutting, in accordance to an exemplary embodiment of the invention.
[0028] FIG. 1C illustrates a perspective view of a regulating button of the handheld device, in accordance to an exemplary embodiment of the invention.
[0029] FIG. 1D illustrates a perspective view of a stripping assembly of the handheld device, in accordance to an exemplary embodiment of the invention.
[0030] FIG. 2A illustrates a schematic view depicting connection of a power strip box with a conducting wire associated with a second electromagnet of the handheld device, in accordance to an exemplary embodiment of the invention.
[0031] FIG. 2B illustrates a schematic view depicting disconnection of the power strip box with the conducting wire associated with the second electromagnet, in accordance to an exemplary embodiment of the invention.
[0032] FIG. 2C illustrates a schematic view of a cutting operation of a cable wire, in accordance to an exemplary embodiment of the invention.
[0033] FIG. 3A illustrates a view depicting placement of the cable wire in the stripping assembly, in accordance to an exemplary embodiment of the invention.
[0034] FIG. 3B illustrates a view depicting holding of the wire by the first jaw and the second jaw, in accordance to an exemplary embodiment of the invention.
[0035] FIG. 3C illustrates a view depicting activation of a pair of electromagnets of the handheld device, in accordance to an exemplary embodiment of the invention.
[0036] FIG. 4 illustrates a flowchart of a method for cutting and stripping wires using a compact handheld device, in accordance to an exemplary embodiment of the invention.
Detailed invention disclosure:
[0037] Various embodiments of the present invention will be described in reference to the accompanying drawings. Wherever possible, same or similar reference numerals are used in the drawings and the description to refer to the same or like parts or steps.
[0038] The present disclosure has been made with a view towards solving the problem with the prior art described above, and it is an object of the present invention to provide a compact, battery-powered device that utilizes electromagnets and a controller for precise, efficient, and ergonomic cable cutting and stripping.
[0039] According to an exemplary embodiment of the invention, FIG. 1A refers to a perspective view of a compact handheld device 100 for automated cable wires stripping and cutting. FIG. 1B refers to an internal view of the handheld device 100 for automated cable wires stripping and cutting. The handheld device 100 comprises a handle 102, a stripping assembly 104, a cutting unit 106, a regulating button 108, a switching button 110, an indicator light 112, a pair of electromagnets (114A, 114B) and a controller 117.
[0040] The stripping assembly 104 is attached to the handle 102. The stripping assembly 104 comprises a first jaw 116A, a second jaw 116B, and a stripping unit 122 arranged in a mouth 116C formed by the first jaw 116A and the second jaw 116B. The cutting unit 106 is position on the handle 102. The cutting unit 106 comprises a fixed blade 106A, a movable blade 106B, and a reciprocating shaft 106C. The electromagnets (114A, 114B) comprise a first electromagnet 114A and a second electromagnet 114B.
[0041] Referring to FIG. 1B, the handle 102 is configured to house a power source 101 and other components. The power source 101 is electrically connected to the switching button 110. The switching button 110 is spring-loaded to automatically return to a neutral position after completing either a cutting operation or a stripping operation. The switching button 110 is equipped with a spring 110A and is connected internally to an L-shaped holder 110B within the handle 102. A cable 103 is routed through a hollow channel 103A that extends into the opening of the L-holder 110B. At the end of the cable 103 within the hollow channel 103A, a copper contact wire 105 is positioned. This copper contact wire 105 facilitates the connection and disconnection with the top cable strip conductor of the power strip box 109, thereby controlling the power flow to the electromagnets (114A, 114B) during both the cutting and stripping operations.
[0042] The regulating button 108 is protruding from the handle 102. The regulating button 108 is selectively movable between a first position to initiate the cutting operation and a second position to initiate the stripping operation. The indicator light 112 that is positioned on the handle 102. The indicator light 112 is configured to provide a visual feedback regarding operating modes of the handheld device 100. In one embodiment, the operation modes comprise the cutting operation and the stripping operation.
[0043] According to another exemplary embodiment of the invention, FIG. 1C refers to a perspective view of the regulating button 108. The regulating button 108 is connected to the power strip box 109 and horizontally linked to the cutting unit 106 through a support bar 108A. The internal end of the regulating button 108 is designed with an aperture 108B, into which the support bar 108A is inserted. The regulating button 108 enables the user to activate either the cutting operation or stripping operation and controls the engagement and disengagement of the power supply to at least one electromagnet 114B of the electromagnets (114A, 114B).
[0044] The power strip box 109 is arranged internally within the handle 102 and is movably connected to a base support plate 109A through the regulating button 108. The power strip box 109 is equipped with power conductor strips 109B on both sides of its edges, these strips extend from the front top side of the power strip box 109, aligning with the hollow channel 103A of the switching button 110. At least one power conductor strip 109B remains constantly connected to a conducting wire 111A, ensuring an uninterrupted power supply, while the other power conductor strip 109B can connect to a conducting wire 111B controlled by the regulating button 108, allowing switching between functions as required.
[0045] The power strip box 109 moves along the base support plate 109A, guided by the regulating button 108, which controls the alignment and movement of the power strip box 109. This setup ensures precise engagement of the conductor strips 109B with the corresponding conducting wire 111B, depending on the selected operation. At least one rigid pole 107 is positioned on either side of the power strip box 109 to securely hold conducting wire 111B, facilitating its contact and non-contact with the power conductor strip 109B.
[0046] In one embodiment, the electromagnets (114A, 114B) are disposed within the handle 102 and electrically connected to the power source 101 through the controller 117. The controller 117 is configured to selectively activate the first electromagnet 114A for the cutting operation when the regulating button 108 is in the first position, and the second electromagnet 114B and the first electromagnet 114A for the stripping operation when the regulating button 108 is in the second position. The controller 117 is configured to regulate the activation of the first electromagnet 114A and the second electromagnet 114B based on the position of the regulating button 108.
[0047] In one embodiment, the cutting unit 106 is position on the handle 102. The cutting unit 106 comprises the fixed blade 106A, the movable blade 106B, and the reciprocating shaft 106C. The movable blade 106B is configured to perform the cutting operation. The reciprocating shaft 106C is configured for connecting the movable blade 106B to the regulating button 108. The reciprocating shaft 106C is configured to move linearly in response to the activation of the first electromagnet 114A, translating the motion to the movable blade 106B for the cutting operation. The reciprocating shaft 106C is configured to be detachably attached to the first iron piece 120A when the regulating button 108 is in the first position, thereby connecting the movable blade 106B with the inclined bar 118 of the first jaw 116A, such that activation of the first electromagnet 114A causes the reciprocating shaft 106C to move the movable blade 106B, thereby enabling the cutting of a cable wire 10.
[0048] According to another exemplary embodiment of the invention, FIG. 1D refers to a perspective view of the stripping assembly 104. The stripping assembly 104 is attached to the handle 102. The stripping assembly 104 comprises the first jaw 116A, the second jaw 116B, and the stripping unit 122 arranged in the mouth 116C formed by the first jaw 116A and the second jaw 116B. The first jaw 116A having an inclined bar 118, which is attached to a first iron piece 120A. The inclined bar 118 is fixed in the handle 102 through an axis joint 115. The axis joint 115 is configured to allow the inclined bar 118 to pivot about an axis to move the first jaw 116A move in a longitudinal direction relative to the handle 102. The first iron piece 120A is configured to initiate a back-and-forth movement of the first jaw 116A via the inclined bar 118 upon activation of the first electromagnet 114A when the regulating button 108 is in both the first position and the second position. The second jaw 116B is positioned below the first jaw 116A. The first jaw 116A is configured to move in a longitudinal direction relative to the handle 102 when activated by the first electromagnet 114A, facilitating both cutting and stripping operations.
[0049] In one embodiment, the stripping unit 122 is arranged in a mouth 116C formed by the first jaw 116A and the second jaw 116B. The stripping unit 122 is configured to be displaceable in a lateral direction of the mouth 116C upon activation of the pair of electromagnets (114A, 114B) when the regulating button 108 is in the second position, thereby enabling the stripping of the cable wire 10. The inclined bar 118 is internally connected to the first jaw 116A via an axis joint 115 and equipped with a first iron piece 120A positioned below the first electromagnet 114A, as shown in FIG. 1D. One end of the first iron piece 120A features an engaging slot 113, which engages with the reciprocating shaft 106C, facilitating the activation of the cutting unit 106 to cut the cable wire 10.
[0050] In one embodiment, the first electromagnet 114A is mounted within the handle 102 and connected through a joint bar, and aligned in parallel to the first iron piece 120A. The first electromagnet 114A is electrically connected to the power strip box 109 and the controller 117, as shown in FIG. 1C, enabling the inclined bar 118 to pivot upward, causing the moving blade 106B to rise. When the first jaw 116A contacts the second jaw 116B, a gripping action on the cable wire 10 is achieved.
[0051] In one embodiment, the second electromagnet 114B is positioned at a rear end of the second jaw 116B and near a pivoting joint 123, which is connected to a second iron piece 120B centrally within the handle 102. A fixed gap separates the second electromagnet 114B from the second iron piece 120B, as shown in FIG. 1B. This gap enables controlled attraction and repulsion between the second electromagnet 114B and the second iron piece 120B. The second electromagnet 114B is integral to moving the inclined bar 118, the second iron piece 120B, and their associated components, enabling precise magnetic control for the cable wire 10 stripping action. High-powered electromagnets are utilized for both the cable wire 10 cutting and stripping operations.
[0052] In one embodiment, the first jaw 116A and the second jaw 116B are configured with a groove 121. The grooves 121 are configured for movably holding the stripping unit 122. One end of the first jaw 116A and the second jaw 116B are configured with a male wire holder 119A and a female wire holder 119B. The male wire holder 119A of the first jaw 116A contacts the female wire holder 119B of the second jaw 116B upon activation of the first electromagnet 114A. The stripping unit 122 comprises a pair of guide bars (124A, 124B), an adjuster 126, and a wire stripper 128. The pair of guide bars (124A, 124B) comprises an upper guide bar 124A, and a lower guide bar 124B. The upper guide bar 124A, and the lower guide bar 124B are pivotally connected to each other through the pivoting joint 123, which is attached to the second iron piece 120B.
[0053] In one embodiment, the first jaw 116A, as the outer component of the stripping assembly 104, is positioned at the front of the handheld device 100 and houses the inclined bar 118, as depicted in FIG. 1D. The first jaw 116A includes a male wire holder 119A and a wire stripper 128. The upper guide bar 124A is inserted into the grooves 121 of the first jaw 116A, enabling contact with the second jaw 116B and their internally connected components. The male wire holder 119A is located on the lower surface of the first jaw 116A and, when in contact with the female holder on the second jaw 116B, helps secure the cable wire 10. The wire stripper 128 is connected to the upper guide bar 124A and positioned behind the male wire holder 119A. The upper guide bar 124A of the wire stripper 128 includes pins inserted into the top groove of the first jaw 116A, which allows the wire stripper 128 to remove the insulation from the top of the cable wire 10 upon contact.
[0054] In one embodiment, the second jaw 116B is a fixed, non-movable component connected within the handle 102. The second jaw 116B includes the female wire holder 119B on its upper surface to provide grip support to the cable wire 10 when in contact with the first jaw 116A. Positioned on the inner surface of the second jaw 116B, the female wire holder 119B secures the cable wire 10 in conjunction with the male wire holder 119A. The wire stripper 128 is located within the second jaw 116B and beneath the first jaw's wire stripper 128, aiding in removing insulation from the underside of the cable wire 10.
[0055] In one embodiment, the adjuster 126 is arranged within the lower guide bar 124B, allowing for adjustments to achieve various cable wire 10 stripping lengths. The front side of the lower guide bar 124B features one or more grippers 127 that assist in removing the cable wire 10 insulation when the wire stripper 128 is activated. The edges of the lower guide bar 124B have plurality of teeth 125 that adjust the strip length by moving the adjuster 126. This setup enables secure holding, cutting, and stripping operations, with components moving smoothly within the grooves 121. The sliding action is controlled by the second electromagnet 114B, providing precise and regulated movement.
[0056] In one embodiment, the guide bars (124A, 124B) are configured to hold a starting end of the cable wire 10 and slide within the mouth 116C due to the second iron piece 120B upon activation of the second electromagnet 114B for the stripping operation. The adjuster 126 is slidably positioned on at least one of the pair of guide bars (124A, 124B). The adjuster 126 is configured to provide different lengths for stripping the cable wire 10. The wire stripper 128 is positioned on one end of each guide bar (124A, 124B). The wire stripper 128 of each guide bar (124A, 124B) is configured to remove the starting end of the cable wire 10 when the pair of guide bars (124A, 124B) slides within the mouth 116C due to the second iron piece 120B upon activation of the second electromagnet 114B when the regulating button 108 is in the second position.
[0057] According to another exemplary embodiment of the invention, FIG. 2A refers to a schematic view depicting connection of the power strip box 109 with the conducting wire 111B associated with the second electromagnet 114B. When a user intends to cut the cable wire 10, the first step involves setting the regulating button 108 to the cutting operation, as illustrated in FIG. 2A. This action is crucial for enabling the handheld device 100 to operate in a manner conducive to efficient cutting.
[0058] Referring to FIG. 2A, in its initial position, the regulating button 108 serves a dual function. It is vertically connected to the power strip box 109 and horizontally linked to the moving blade 106B. At this stage, the regulating button 108 facilitates a connection between the power strip box 109 and the conducting wire 111B associated with the second electromagnet 114B, while the first electromagnet 114A remains continuously connected to the power strip box 109 and the power source 101. Notably, the reciprocating shaft 106C cutting operation is not yet engaged with the engaging slot 113 of the first iron piece 120A. To transition from stripping to cutting operation, the user manually moves the regulating button 108 by sliding it. This movement is not merely a mechanical adjustment. This initiates a series of events that prepare the handheld device 100 for the cutting operation.
[0059] As the user slides the regulating button 108, it engages with the power strip box 109, which is housed within the base support plate 109A. This action prompts the power strip box 109 to move accordingly, repositioning itself within the confines of the base support plate 109A. The movement of the regulating button 108 effectively transitions the handheld device 100 from the stripping operation to the cutting operation. This shift not only indicates readiness for cutting but also realigns internal components necessary for this operation.
[0060] According to another exemplary embodiment of the invention, FIG. 2B refers to schematic view depicting disconnection of the power strip box 109 with the conducting wire 111B associated with the second electromagnet 114B. As the regulating button 108 is shifted, it aligns the engaging slot 113 of the first iron piece 120A with the reciprocating shaft 106C connected to the moving blade 106B. This alignment is critical, it establishes a direct connection between the moving blade 106B and the first electromagnet 114A that will facilitate the cutting operation. Concurrently, this adjustment causes the power strip box 109 to disconnect from the conducting wire 111B of the second electromagnet 114B, thereby eliminating any electrical contact. This disconnection is a safety feature that ensures the handheld device 100 is adequately prepared for cutting operations, as there is no risk of unintended activation of the stripping function during the cutting operation.
[0061] According to another exemplary embodiment of the invention, FIG. 2C refers to a schematic view of the cutting operation. Once the user has set the handheld device 100 to the cutting operation, they proceed to place the cable wire 10 within the cutting unit 106. This unit is specifically designed to accommodate various cable sizes, ensuring a secure fit for optimal cutting efficiency. The user then activates the switching button 110, conveniently located on the handle 102. The design of the handle ensures that it provides a comfortable grip, facilitating ease of use during operation.
[0062] Upon activation, the switching button 110 directs the battery-connected cable wire to move downward through the hollow channel 103A and into the L-shaped holder 110B. This movement is crucial for initiating the cutting operation, as it positions the cable wire 10 correctly for engagement with the cutting unit 106. The switching button 110 is pressed, the connected spring 110A compresses. This compression mechanism plays a pivotal role in establishing an electrical connection. The switching button 110 is configured to connect the end of the copper contact wire 105 with the power conductor strips 109B. This electrical connection ensures that power is exclusively supplied to the conducting wire 111A, which is integral for the operation of the cutting mechanism. Meanwhile, the conducting wire 111B remains disconnected during this stage, preventing any accidental activation of the stripping function.
[0063] In one embodiment, to enhance the safety and functionality of the handheld device 100 comprises a proximity sensor 129 that is located near the power strip box 109, on the conducting wire 111B side of the handle 102. The proximity sensor 129 is configured to monitor connection of the conducting wire 111B, detecting when it is no longer in contact with the conductor strips 109B. Once the proximity sensor 129 confirms that the conducting wire 111B is disengaged, the proximity sensor 129 sends a signal to the controller 117. The cutting unit 106 is now active, the controller 117 directs power to the first electromagnet 114A, supplying it with the required voltage typically around 5V. This action activates the cutting operation, enabling the handheld device 100 to proceed with the intended cutting operation efficiently and safely.
[0064] When activated, the first electromagnet 114A generates a powerful magnetic field that exerts an attractive force on the first iron piece 120A integrated into the inclined bar 118. This attraction causes the inclined bar 118 to lift the movable blade 106B of the cutting unit 106 from a downward position to an upward position, effectively executing a clean cut on the inserted cable wire 10. The use of high-powered electromagnets (114A, 114B) is pivotal in this mechanism. These electromagnets (114A, 114B) are engineered to perform both attraction and repulsion actions with precision, enabling quick and effective movement of the cutting components. The upward movement of the movable blade 106B occurs as the rear portion shifts from a lower position to an upper position, performing the cutting operation as illustrated in FIG. 2C. This dynamic movement not only facilitates the cutting operation but also ensures that the cable wire 10 is severed cleanly and efficiently.
[0065] As the inclined bar 118 moves, it pivots around the axis joint 115 that connects it to the first jaw 116A. This mechanism ensures that the first jaw 116A makes contact with the second jaw 116B, applying the necessary force to complete the cut. The electromagnets (114A, 114B) are designed for rapid cycles of attraction and repulsion. During the cutting operation, the controller 117 sends a signal to the first electromagnet 114A, commanding it to attract and lift the movable blade 106B. Following the cutting operation, the controller 117 then provides a repulsion signal to reset both the inclined bar 118 and the movable blade 106B back to their original positions. The controlled attraction and repulsion of the electromagnets (114A, 114B) are managed by an H-bridge circuit (not shown) within the controller 117. This circuit allows for efficient switching between the two states, enabling precise control over the movement of the moving blade 106B of the cutting unit 106.
[0066] Once the cable wire 10 has been cut, the user releases the switching button 110. This action disengages the power supply from the controller 117 and subsequently cuts off power to the first electromagnet 114A. The spring 110A located beneath the switching button 110 extends upon release, ensuring that the switching button 110 returns to its neutral position and disengages from the conducting wire 111A, which is connected to the first electromagnet 114A. This mechanical reset prepares the handheld device 100 for subsequent use. The entire cutting operation is designed to be precise and efficient, requiring minimal effort from the user. The intuitive design reduces physical strain, making the handheld device 100 easy to operate, even in repetitive cutting tasks.
[0067] According to another exemplary embodiment of the invention, FIG. 3A refers to a view depicting placement of the cable wire 10 in the stripping assembly 104. To strip the cable wire 10 using the handheld device 100, the user initiates the process by setting the adjuster 126 to determine the length of insulation to be removed, then places the cable wire 10 within the second jaw 116B, specifically positioning it within the female wire holder 119B and the wire stripper 128, as shown in FIG. 3A. The user switches the regulating button 108 from the cutting operation to the stripping operation. By shifting the regulating button 108, the reciprocating shaft 106C disengages from the engaging slot 113, enabling the power strip box 109 to reconnect with conducting wire 111B of the second electromagnet 114B.
[0068] The proximity sensor 129 detects this connection and signals the controller 117, indicating that the second electromagnet 114B is now engaged with the power source 101. The controller 117 powers the second electromagnet 114B by sending the necessary voltage (10V for EM-2 and 5V for EM-1), using the H-bridge circuit with MOSFET transistors for efficient power control. As the reciprocating shaft 106C is not engaged with the engaging slot 113, the cutting mechanism remains inactive.
[0069] According to another exemplary embodiment of the invention, FIG. 3B refers to a view depicting holding of the cable wire 10 by the first jaw 116A and the second jaw 116B. Upon receiving power, the first electromagnet 114A activates, attracting the first iron piece 120A and causing the first jaw 116A to move into contact with the second jaw 116B, thereby securing the cable wire 10 between them. As the cable wire 10 is held securely, the wire stripper 128 on the first jaw 116A cuts into the top side of the cable wire 10 insulation, while the wire stripper 128 on the second jaw 116B cuts and holds the lower side of the insulation.
[0070] The guiding bars (124A, 124B) are linked by the pivoting joint 123 and slide within the grooves 121 of both jaws (116A, 116B). Once the first electromagnet 114A is activated, the controller 117 promptly activates the second electromagnet 114B. The second electromagnet 114B generates a magnetic force that attracts the second iron piece 120B attached to the guide bars (124A, 124B), causing them to slide within the grooves 121 of the jaws (116A, 116B). The magnetic attraction pulls the guide bars (124A, 124B) backward, enabling the wire stripper 128 to firmly grip and pull away the cable wire 10 insulation.
[0071] The backward movement of the guide bars (124A, 124B) pulls the insulation away from the cable core, effectively removing it as shown in FIG. 3B. The wire stripper 128, having already penetrated the insulation, tightly grips and removes it in sync with the guide bars' movement. The controller 117 efficiently manages both attraction and repulsion phases for electromagnets (114A and 114B). Initially, it enables attraction to perform the stripping action and subsequently triggers repulsion to reset the components.
[0072] According to another exemplary embodiment of the invention, FIG. 3C refers to a view depicting activation of the electromagnets (114A, 114B). After stripping the cable wire 10, the controller 117 triggers repulsion in the electromagnets (114A, 114B), pushing the iron pieces (120A and 120B), the inclined bar 118, and the guiding bars (124A, 124B) back to their starting positions. A calculated space between the second iron piece 120B and the second electromagnet 114B enables controlled attraction and repulsion, facilitating a smooth reset process. When the user releases the switching button 110, the spring 110A extends, resetting the button to its neutral position and disconnecting the power to the second electromagnet 116B.
[0073] The user can repeat the stripping and cutting operations by following the same procedure for each cable wire 10. After completing tasks, the handheld device 100 should be powered off and recharged, ensuring its ready for future use. The handheld device 100 provides an intuitive interface for switching between cutting and stripping operations. The use of dual electromagnets (114A, 114B), managed by the controller 117, results in smooth operation with minimal user effort. The design minimizes strain while enhancing precision and efficiency in cable handling.
[0074] The handheld device 100 is engineered to support a wide range of cable wire 10 stripping lengths and gauges, making it versatile for various applications. The handheld device 100 provides an adjustable stripping capacity from 10 to 24 AWG (0.2 to 6.0 mm²) and allows stripping lengths adjustable up to 3/4 inch (20 mm). With a weight of approximately 0.6 lbs (270 grams) and constructed from hardened steel cutting blades with a plastic ergonomic handle, it is designed to provide durability and comfort in prolonged usage.
[0075] The adjustable stripping length feature is facilitated by an integrated adjuster mechanism within the lower guide bar 124B, allowing the user to set precise stripping lengths for different tasks. For short-length stripping, the handheld device 100 efficiently manages lengths between 2mm and 10mm, ideal for applications that demand minimal conductor exposure, such as electronic components and small connectors. For medium-length stripping, it accommodates lengths from approximately 10mm to 20mm, covering most general wiring needs, including typical electrical installations and repairs. The handheld device 100 also supports long-length stripping, from 20mm to 50mm, suitable for larger cables commonly found in industrial wiring, automotive, and power distribution.
[0076] Additionally, the handheld device 100 is compatible with a variety of cable types, including both single-core and multi-core cables, making it applicable in household wiring, electronic, and automotive contexts. It can handle diverse insulation materials such as PVC, rubber, Teflon, and silicone, making it adaptable for cables with flexible or rigid insulation. Supporting a wide range of wire gauges, from 24 AWG to 10 AWG, the handheld device 100 accommodates the majority of standard wiring applications in electrical and electronic fields.
[0077] According to another exemplary embodiment of the invention, FIG. 4 refers to a flowchart 400 of a method for cutting and stripping wires using a compact handheld device 100. The method comprises, positioning, by a user, a regulating button 108 selectively in a first position to activate a cutting operation or in a second position to activate a stripping operation, as depicted in step 402. The method comprises, activating, by the user, the first electromagnet 114A when the regulating button 108 is in the first position, and simultaneously connecting the first iron piece 120A to the reciprocating shaft 106C, as depicted in step 404. The method comprises, enabling the movable blade 106B to moves within the cutting unit 106 upon activation of the first electromagnet 114A, thereby performing the cutting operation, as depicted in step 406.
[0078] The method includes activating both the first electromagnet 114A and the second electromagnet 114B when the regulating button 108 is set to the second position. This activation allows the first jaw 116A of the stripping assembly 104 to be moved by the inclined bar 118 upon activation of the first electromagnet 114A, thereby creating a clamping action between the first jaw 116A and the second jaw 116B, as illustrated in step 408. Following this, the method facilitates the movement of a stripping unit 122 within both jaws (116A and 116B) in a lateral direction, which performs the stripping operation, as illustrated in step 410.
[0079] Numerous advantages of the present disclosure may be apparent from the discussion above. In accordance with the present disclosure, a compact, battery-powered device is disclosed herein that utilizes electromagnets and a controller for precise, efficient, and ergonomic cable cutting and stripping.
[0080] The handheld device 100 significantly enhances the precision and efficiency of cutting and stripping electrical cables. By utilizing the electromagnets (114A, 114B) and the controller 117, the handheld device 100 ensures accurate and repeatable operations, minimizing human error and inconsistencies in cable cutting and stripping. The handheld device 100 integrates a power-assisted mechanism that reduces manual effort during cable cutting and stripping. The inclusion of dual electromagnets (114A, 114B) allows for smooth and controlled attraction and repulsion, ensuring the handheld device 100 operates with minimal strain on the user.
[0081] The handheld device 100 improves user comfort and reduce fatigue by incorporating an ergonomic handle and strategically positioned controls, such as the switching and regulating buttons. This design ensures easy handling, even for extended periods, making it more user-friendly compared to traditional cable-cutting and stripping devices. The handheld device 100 is a single device that is capable of performing both cable cutting and stripping. The regulating button 108 allows users to easily switch between these two functions, eliminating the need for separate devices and simplifying electrical work.
[0082] The handheld device 100 integrates mechanical and electromagnetic components to automate the attraction and repulsion processes necessary for performing cutting and stripping, making it suitable for various electrical and electronics applications, including wiring installations and maintenance in industrial, commercial, and residential environment.
[0083] The controller 117 comprises an H-bridge circuit and MOSFET transistors, manages the precise operation of the electromagnets (114A, 114B) and cutting/stripping mechanisms. This automation ensures smooth transitions between cutting and stripping operations, contributing to the overall efficiency of the handheld device 100. Further, the proximity sensor 129 and controlled power distribution.
[0084] The proximity sensor 129 ensures that power is only supplied when the handheld device 100 is in the correct mode (cutting or stripping), reducing the risk of accidental activation and improving user safety. The handheld device 100 is a compact, lightweight, and portable device that can be easily carried and used in various work environments, including confined spaces. Its battery-powered operation ensures that the handheld device 100 can be used in locations without access to external power sources.
[0085] The handheld device 100 is designed to handle a wide range of cable types and sizes. The adjustable features, such as the wire stripping length and cutting depth, make it adaptable for use in various industries, including electrical wiring, electronics, automotive, and telecommunications. The integration of electromagnets (114A, 114B) and precision electronic components minimizes mechanical wear and tear, reducing the need for frequent maintenance and ensuring the handheld device's longevity.
[0086] It will readily be apparent that numerous modifications and alterations can be made to the processes described in the foregoing examples without departing from the principles underlying the invention, and all such modifications and alterations are intended to be embraced by this application.
, Claims:CLAIMS:
I / We Claim:
1. A handheld device (100) for stripping and cutting of a cable wire (10), comprising:
a handle (102) housing at least one power source (101) and a switching button (110);
a regulating button (108) protruding from the handle (102), wherein the regulating button (108) is selectively movable between a first position to initiate a cutting operation and a second position to initiate a stripping operation;
a pair of electromagnets (114A, 114B) disposed within the handle (102) and electrically connected to the power source (101) through a controller (117), wherein the pair of electromagnets (114A, 114B) comprises a first electromagnet (114A) and a second electromagnet (114B);
a stripping assembly (104) attached to the handle (102), wherein the stripping assembly (104) is configured to perform the stripping operation,
wherein the stripping assembly (104) comprises:
a first jaw (116A) having an inclined bar (118), which is attached to a first iron piece (120A), wherein the first iron piece (120A) is configured to initiate a back-and-forth movement of the first jaw (116A) via the inclined bar (118) upon activation of the first electromagnet (114A) when the regulating button (108) is in both the first position and the second position;
a second jaw (116B) positioned below the first jaw (116A); and
a stripping unit (122) operatively positioned between the first jaw (116A) and the second jaw (116B), wherein the stripping unit (122) is configured to be displaceable in a lateral direction of the mouth (116C) upon activation of the pair of electromagnets (114A, 114B) when the regulating button (108) is in the second position, thereby stripping the cable wire (10); and
a cutting unit (106) position on the handle (102), wherein the cutting unit (106) is configured to perform the cutting operation,
wherein the cutting unit (106) comprises:
a fixed blade (106A) and a movable blade (106B) movably positioned beneath the fixed blade (106A); and
a reciprocating shaft (106C) configured to detachably connect the movable blade (106B) with the inclined bar (118) of the first jaw (116A), wherein the reciprocating shaft (106C) is configured to move linearly in response to the activation of the first electromagnet (114A), translating the motion of the inclined bar (118) to the movable blade (106B) for the cutting operation.
2. The handheld device (100) as claimed in claim 1, wherein the stripping unit (122) comprises:
a pair of guide bars (124A, 124B) pivotally connected to each other through a pivoting joint (123), wherein the pair of guide bars (124A, 124B) is configured to hold a starting end of the cable wire (10) and slide within the mouth (116C) upon activation of the second electromagnet (114B) for the stripping operation;
an adjuster (126) slidably positioned on at least one of the pair of guide bars (124A, 124B), wherein the adjuster (126) is configured to provide different lengths for stripping the cable wire (10); and
a wire stripper (128) positioned on one end of each of the guide bar (124A, 124B), wherein the wire stripper (128) is configured to remove the starting end of the cable wire (10) when the pair of guide bars (124A, 124B) slides within the mouth (116C) upon activation of the second electromagnet (114B).
3. The handheld device (100) as claimed in claim 1, wherein the first jaw (116A) and the second jaw (116B) comprise a groove 121 that is configured to hold the stripping unit (122).
4. The handheld device (100) as claimed in claim 1, wherein the controller (117) is configured to selectively activate the first electromagnet (114A) for the cutting operation when the regulating button (108) is in the first position, and the second electromagnet (114B) and the first electromagnet (114A) for the stripping operation when the regulating button (108) is in the second position.
5. The handheld device (100) as claimed in claim 1, wherein the first jaw (116A) is configured to move in a longitudinal direction relative to the handle (102) when activated by the first electromagnet (114A), facilitating both cutting and stripping operations.
6. The handheld device (100) as claimed in claim 1, wherein the handheld device (100) comprises an indicator light (112) that is positioned on the handle (102), wherein the indicator light (112) is configured to provide a visual feedback regarding operating modes of the handheld device (100).
7. The handheld device (100) as claimed in claim 1, wherein the reciprocating shaft (106C) is configured to be detachably attached to the first iron piece (120A) when the regulating button (108) is in the first position, thereby connecting the movable blade (106B) with the inclined bar (118) of the first jaw (116A) for enabling the cutting of the cable wire (10).
8. The handheld device (100) as claimed in claim 1, wherein the cutting unit (106) comprises a fixed blade (106A) positioned above the movable blade (106B).
9. The handheld device (100) as claimed in claim 1, wherein the switching button (110) is spring-loaded to automatically return to a neutral position after completing either the cutting operation or the stripping operation.
10. A method for cutting and stripping a cable wire (10) using a handheld device (100), comprises:
positioning, by a user, a regulating button (108) selectively in a first position to activate a cutting operation or in a second position to activate a stripping operation;
activating, by the user, a first electromagnet (114A) when the regulating button (108) is in the first position, and simultaneously connecting a first iron piece (120A) to a reciprocating shaft (106C);
enabling a movable blade (106B) to moves within a cutting unit (106) upon activation of the first electromagnet (114A), thereby performing the cutting operation for cutting a cable wire (10);
activating the first electromagnet (114A) and a second electromagnet (114B) when the regulating button (108) is in the second position, thereby enabling a first jaw (116A) of a stripping assembly (104) to move via an inclined bar (118) upon activation of the first electromagnet (114A), creating a clamping action between the first jaw (116A) and a second jaw (116B); and
enabling a stripping unit (122) to move within the first jaw (116A) and the second jaw (116B) in a lateral direction, thereby performing the stripping operation for stripping the cable wire (10).

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