Portable winch

Abstract

A portable winch (100) includes a motor (130), a rotatable drum (134), and a clutch assembly (180) configured to engage a gear assembly (188). In a default state, the motor is mechanically decoupled from the rotatable drum, and, in response to activation of the portable winch, the clutch assembly automatically engages the gear assembly, thereby mechanically attaching the motor to the rotatable drum.

Description

Cross-references to related applications

[0001] This application claims priority and benefit to U.S. Provisional Patent Application No. 63 / 624,130, filed January 23, 2024, entitled “Portable Winch,” the entire contents of which are incorporated herein by reference and are based. Technical Field

[0002] This disclosure generally relates to systems and methods for guiding, controlling, and pulling retractable ropes, wires, and cables. Background Technology

[0003] Winch technology enables users to lift and move large, heavy objects. A vehicle rescue winch is one example of a winch, typically designed for use in large SUVs and trucks. For it to function properly, the user may need to rigidly mount the vehicle rescue winch to a winch mount and / or the vehicle's bumper. However, crossover SUVs and small trucks may not provide the necessary mounting points (such as suitable bumpers) to attach the vehicle rescue winch to the vehicle. In these cases, the user may not be able to use the vehicle rescue winch. Furthermore, even if the vehicle does include the necessary mounting points, the user may not want to permanently modify their vehicle simply to install a vehicle rescue winch. Additionally, the transportability of a vehicle rescue winch is limited by the vehicle itself. If the vehicle itself cannot access a particular location, using the winch in off-road and / or remote locations may be difficult or impossible.

[0004] While some portable pull-out tools exist today, current tools have several limitations; namely, these tools require external power (e.g., via an external electrical power source and extension cord, or alternatively, via an external mechanical power source connected to the tool itself).

[0005] Therefore, an improved winch system is needed that does not need to be attached to the vehicle and that includes its own power source. Summary of the Invention

[0006] According to this disclosure, and without limiting the scope of the invention in any way, in a first aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), an automatic clutch assembly includes: an electromechanical solenoid having a shaft disposed therein; a pivot arm hingedly connected to the electromechanical solenoid; and a clutch pin disposed perpendicular to the shaft and connected to the pivot arm. When the electromechanical solenoid is activated, the clutch pin is in an engaged position, and when the electromechanical solenoid is deactivated, the clutch pin is in a disengaged position.

[0007] In a second aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), a first end of the pivot arm is connected to the shaft of the electromechanical solenoid, and a second end of the pivot arm is connected to a clutch pin.

[0008] In a third aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), when the electromechanical solenoid is deactivated, the shaft extends out of the electromechanical solenoid.

[0009] In the fourth aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), when the electromechanical solenoid is activated, the shaft retracts into the electromechanical solenoid.

[0010] In a fifth aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), the automatic clutch assembly further includes a spring to mechanically bias the clutch pin to a disengaged position when the electromechanical solenoid is deactivated.

[0011] In the sixth aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), the pivot arm rotates about the pin.

[0012] In the seventh aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), the clutch pin extends through a bore in the automatic clutch assembly.

[0013] In the eighth aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), vertical translation of the shaft causes horizontal translation of the clutch pin.

[0014] In the ninth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspects listed herein), the clutch pin includes a first end and a second end, and the first end is coupled to the pivot arm.

[0015] In the tenth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the second end of the clutch pin is in a dovetail shape.

[0016] In the eleventh aspect of this disclosure (unless otherwise stated, it may be combined with any other aspects listed herein), an automatic clutch assembly includes: a pivot arm coupled to an electromechanical solenoid; and a clutch pin having an engaged position and a disengaged position. In the engaged position, the clutch pin engages a gear assembly.

[0017] In the twelfth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspects listed herein), the clutch pin extends through a bore in the automatic clutch assembly to engage the gear assembly.

[0018] In the thirteenth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), when the clutch pin is in the engaged position, the clutch pin engages the rotating gear of the gear assembly.

[0019] In the fourteenth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspects listed herein), the clutch pin includes a first end and a second end, the first end being connected to a pivot arm. When the clutch pin is in the engaged position, the second end engages a rotating gear of a gear assembly.

[0020] In the fifteenth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the rotating gear of the gear assembly includes a plurality of notches.

[0021] In the sixteenth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), when the clutch pin is in the engaged position, the second end of the clutch pin engages one of a plurality of recesses of a rotating gear.

[0022] In the seventeenth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), when the second end of the clutch pin engages one of the plurality of recesses of the rotating gear, the aforementioned recess of the plurality of recesses is configured to convert the rotational force on the rotating gear into a lateral force on the clutch pin.

[0023] In the eighteenth aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the clutch pin remains engaged with the rotating gear when the lateral force is above a predetermined threshold load.

[0024] In the nineteenth aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the clutch pin disengages from the rotating gear when the lateral force is below a predetermined threshold load.

[0025] In the twentieth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the second end of the clutch pin is in a dovetail shape.

[0026] In the twenty-first aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), a portable winch includes: a reaction member and a cable configured to unwind from a rotatable drum. When the cable extends excessively from the rotatable drum, the cable engages the reaction member, thereby deactivating the portable winch.

[0027] In the twenty-second aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the reaction member includes a first position and a second position, wherein when the reaction member is in the second position, the portable winch is deactivated.

[0028] In the twenty-third aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the reaction component is biased to the first position.

[0029] In the twenty-fourth aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the portable winch is deactivated when the reaction member engages the switch with the reaction member in the second position.

[0030] In the twenty-fifth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), when the reaction member is positioned in the second position, the cable engages the reaction member and forces the reaction member to engage the switch.

[0031] In aspect twenty-six of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the reaction component is a flexible plastic component.

[0032] In aspect twenty-seven of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the reaction component is a spring.

[0033] In aspect twenty-eight of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the cable extends excessively from the rotatable spool when it is wound backwards onto the rotatable spool.

[0034] In the twenty-ninth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the reaction component includes a first side and a second side.

[0035] In the thirtieth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), when the cable extends excessively from the rotatable spool, the cable engages the first side of the reaction member.

[0036] In a thirty-fourth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), a portable winch includes: a cable guide pivotally coupled to the housing of the portable winch; and a cable configured to extend through the cable guide and be wound onto a rotatable drum. In response to a force on the front surface of the cable guide, the cable guide pivots and engages a switch to deactivate the portable winch.

[0037] In aspect thirty-two of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the cable guide includes a first position and a second position.

[0038] In the thirty-third aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), the cable guide is biased toward a first position, and wherein, when the cable guide is in the first position, a portable winch is enabled.

[0039] In the thirty-fourth aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the cable guide includes a magnet configured to engage a plate in a housing, and the cable guide is biased toward a first position via magnetic force between the plate and the magnet.

[0040] In the thirty-fifth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the cable guide pivots around a pin in response to a force on the front surface of the cable guide that overcomes the magnetic force between the plate and the magnet.

[0041] In the thirty-sixth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the cable includes a stop configured to provide force on the front surface of the cable guide.

[0042] In the thirty-seventh aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the portable winch includes a housing stop configured to prevent excessive rotation of the cable guide and damage to the switch.

[0043] In the thirty-eighth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the cable guide includes a slot configured to receive a magnet.

[0044] In aspect thirty-nine of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the cable guide extends from the hole of the portable winch.

[0045] In the fortieth aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the cable guide is turned toward the portable winch in response to a force applied to the front surface of the cable guide.

[0046] In the forty-first aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), a portable winch includes: a motor, a rotatable drum, and a clutch assembly configured to engage a gear assembly. In a default state, the motor is mechanically disengaged from the rotatable drum, and, in response to the activation of the portable winch, the clutch assembly automatically engages the gear assembly, thereby mechanically attaching the motor to the rotatable drum.

[0047] In aspect 42 of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), a load is applied to the portable winch when the portable winch is no longer in use.

[0048] In aspect 43 of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the clutch assembly automatically disengages from the gear assembly when the load is below a predetermined threshold load.

[0049] In aspect 44 of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the clutch assembly remains engaged with the gear assembly when the load is above a predetermined threshold load.

[0050] In aspect 45 of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the clutch assembly automatically disengages from the gear assembly when the load drops below a predetermined threshold load.

[0051] In the forty-sixth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the clutch assembly includes: an electromechanical solenoid having a shaft disposed within the electromechanical solenoid; a pivot arm hingedly connected to the electromechanical solenoid; and a clutch pin disposed perpendicular to the shaft and connected to the pivot arm. When the electromechanical solenoid is engaged, the clutch pin engages the gear assembly, and when the electromechanical solenoid is deactivated, the clutch pin disengages from the gear assembly.

[0052] In aspect 47 of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the first end of the pivot arm is hinged to an electromechanical solenoid, and the second end of the pivot arm is connected to a clutch pin.

[0053] In aspect 48 of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the portable winch further includes a spring to mechanically bias the clutch pin to a disengaged position when the electromechanical solenoid is deactivated.

[0054] In aspect 49 of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), the portable winch further includes: a reaction member and a cable configured to unwind from a rotatable drum. When the cable extends excessively from the rotatable drum, the cable engages the reaction member, thereby deactivating the portable winch.

[0055] In the fiftieth aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), the portable winch further includes a switch, and the portable winch is deactivated when the reaction member engages the switch.

[0056] In a fifty-first aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the portable winch further includes: a cable guide rotatably coupled to the housing of the portable winch; and a cable configured to extend through the cable guide and be wound onto a rotatable drum. In response to a force applied to the front surface of the cable guide, the cable guide rotates and engages a switch to deactivate the portable winch.

[0057] In aspect 52 of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the cable guide includes a first position and a second position.

[0058] In aspect 53 of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), the cable guide is biased toward a first position, and when the cable guide is in the first position, a portable winch is enabled.

[0059] In aspect 54 of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), the portable winch further includes a battery configured to power a motor.

[0060] According to the fifty-fifth aspect of this disclosure (which may be combined with any other aspects listed herein unless otherwise stated), a portable winch includes: a housing having a first side, a second side, a top portion, and a bottom portion; a rotatable drum disposed within a rear portion of the bottom portion of the housing; and a motor assembly disposed within a front portion of the bottom portion of the housing. The motor assembly is aligned with the rotatable drum and the cable guide.

[0061] In the fifty-sixth aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), the portable winch further includes a belt-driven reduction assembly and a gear train assembly, wherein the belt-driven reduction assembly is disposed within a first side of the housing, and the gear train assembly is disposed within a second side of the housing.

[0062] In the fifty-seventh aspect of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), in the default state, the motor of the motor assembly is mechanically separated from the rotatable drum, and in response to the activation of the portable winch, the clutch assembly automatically engages the gear assembly, thereby mechanically attaching the motor to the rotatable drum.

[0063] In aspect 58 of this disclosure (unless otherwise stated, it may be combined with any other aspect listed herein), a load is applied to the portable winch when the portable winch is no longer in use.

[0064] In aspect 59 of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the clutch assembly automatically disengages from the gear assembly when the load is below a predetermined threshold load.

[0065] In the sixtieth aspect of this disclosure (which may be combined with any other aspect listed herein unless otherwise stated), the clutch assembly remains engaged with the gear assembly when the load is above a predetermined threshold load.

[0066] Additional features and advantages of the disclosed apparatus, systems, and methods are described in the following detailed description and accompanying drawings, and will become apparent therefrom. The features and advantages described herein are not exhaustive; in particular, many additional features and advantages will be apparent to those skilled in the art based on the accompanying drawings and description. Similarly, no particular embodiment needs to possess all the advantages listed herein. Furthermore, it should be noted that the language used in the specification has been chosen for readability and instructional purposes and is not intended to limit the scope of the subject matter of the invention. Attached Figure Description

[0067] It should be understood that the accompanying drawings depict only typical embodiments of the invention and should not be considered as limiting the scope of this disclosure. The disclosure has been described and illustrated using the accompanying drawings, with additional features and details. These drawings are listed below.

[0068] Figure 1 A perspective view of a portable winch according to an exemplary embodiment of this disclosure is shown.

[0069] Figure 2A A side view of a portable winch according to an exemplary embodiment of this disclosure is shown.

[0070] Figure 2B A top view of a portable winch according to an exemplary embodiment of this disclosure is shown.

[0071] Figure 3A and Figure 3B A perspective view of the internal winch assembly of a portable winch according to an exemplary embodiment of this disclosure is shown.

[0072] Figure 4A and Figure 4B A cross-sectional view of a portable winch according to an exemplary embodiment of the present disclosure is shown when the automatic power output cut-off feature is deactivated.

[0073] Figure 5A and Figure 5BA cross-sectional view of a portable winch according to an exemplary embodiment of the present disclosure is shown when the automatic power output cut-off feature is enabled.

[0074] Figure 6 A cross-sectional perspective view of a portable winch with an automatic power input cut-off feature according to an exemplary embodiment of the present disclosure is shown.

[0075] Figure 7A A cross-sectional view of a portable winch according to an exemplary embodiment of the present disclosure is shown when the automatic power input cut-off feature is disabled.

[0076] Figure 7B A cross-sectional view of a portable winch according to an exemplary embodiment of the present disclosure is shown when the automatic power input cut-off feature is enabled.

[0077] Figure 8A The automatic clutch assembly and gear train assembly of a portable winch in a disengaged state are shown according to an exemplary embodiment of the present disclosure.

[0078] Figure 8B The automatic clutch assembly and gear train assembly of a portable winch in an engaged state are shown according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0079] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. Exemplary embodiments are provided so that this disclosure is thorough and its scope fully conveys to those skilled in the art. Numerous specific details, such as examples of particular components, apparatus, and methods, are set forth to provide a thorough understanding of embodiments of this disclosure. It will be apparent to those skilled in the art that specific details are not required, that exemplary embodiments may be embodied in many different forms, and that exemplary embodiments should not be construed as limiting the scope of this disclosure. In some exemplary embodiments, well-known processes, well-known apparatus structures, and well-known technologies are not described in detail.

[0080] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are also intended to include the plural forms when used herein. The terms “comprising,” “containing,” “including,” and “having” are inclusive and therefore specifically indicate the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. It should also be understood that additional or alternative steps may be employed.

[0081] When an element or layer is referred to as “located on another element or layer,” “joined to another element or layer,” “connected to another element or layer,” or “linked to another element or layer,” it may be located directly on, joined to, connected to, or linked to another element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly located on another element or layer,” “directly joined to another element or layer,” “directly connected to another element or layer,” or “directly linked to another element or layer,” there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” vs. “directly between,” “adjacent” vs. “directly adjacent”). As used herein, the term “and / or” includes any and all combinations relating to one or more of the listed items.

[0082] While the terms first, second, third, etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are used only to distinguish one element, component, region, layer, or portion from another. Unless the context clearly indicates otherwise, terms such as “first,” “second,” and other numerical terms used herein do not imply order or sequence. Therefore, the first element, first component, first region, first layer, or first portion discussed below may be referred to as a second element, second component, second region, second layer, or second portion without departing from the teachings of the exemplary embodiments.

[0083] For ease of description, this document uses spatial relative terms such as “inner,” “outer,” “below,” “below,” “lower,” “above,” “upper,” etc., to describe the relationship of an element or feature to other elements (multiple elements) or features (multiple features) shown in the figures. In addition to the orientations depicted in the figures, spatial relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features will be oriented “above” other elements or features. Therefore, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein will be interpreted accordingly.

[0084] Portable winches typically have an engaged state and an unengaged state. The unengaged state is often referred to as the free-spool state. When the portable winch is in the free-spool state, the winch drum is mechanically separated from the motor. Therefore, in the free-spool state, the user can pull the rope from the winch to, for example, attach the rope to an object, without having to power the winch or activate it. The free-spool state advantageously allows the user to pull the desired amount of rope from the portable winch for rigging processes with minimal physical effort. Conversely, in the engaged state, the portable winch drum is mechanically attached to the motor. When the user activates the portable winch in the engaged state by power-in or power-out operation, the portable winch transmits torque and rotates the drum. Depending on the direction of drum rotation, the rope can be wound onto or unwound from the drum. In the engaged state, unlike in the free-spool state, the user cannot easily pull the rope from the portable winch.

[0085] Normally, the winch is in the engaged position by default. Generally, the user must perform a specific action to move the portable winch from the engaged position to the free-laying position. This may require any of several actions, such as turning the handle, dialing, or pressing a button on the remote control. Typically, this action causes the portable winch's clutch to disengage from the gear assembly. When the portable winch's clutch is engaged with the gear assembly, the portable winch is in the engaged position. When the clutch is disengaged from the gear assembly, the portable winch is in the free-laying position. Similarly, the user must take action to move the portable winch back from the free-laying position to the engaged position (or engage the clutch with the gear assembly).

[0086] In the example, the action could be the same as the initial action required to adjust the portable winch from the engaged state to the free-laying state. However, this process includes unnecessary steps that can confuse or frustrate the user. For example, a user might want to pull out and extend the rope during rigging assembly without activating the motor to attach it to an object. However, the portable winch might be in the engaged state by default, preventing the user from unwinding the rope. In another example, the portable winch might be in the free-laying state, and the user might forget to adjust the portable winch back to the engaged state before activating power input or power output operation. With the clutch disengaged from the gear assembly, the motor does not provide torque to the drum. Therefore, when the user attempts to activate power input or power output operation, the rope will not wind onto or unwind from the portable winch drum. This process can be simplified to allow users less familiar with winch technology to easily operate the portable winch.

[0087] The portable winch of this disclosure includes two states: an engaged state and a free-layout state. When the portable winch is in the free-layout state, the winch drum is mechanically disengaged from the motor, allowing the user to pull the rope from the portable winch without having to power the winch. In the engaged state, the winch drum is mechanically attached to the motor. When the user activates the portable winch in the engaged state, the portable winch can transmit torque and rotate the drum. In the engaged state, the user cannot pull the rope from the portable winch. The default state of the portable winch of this disclosure is the free-layout state. Therefore, in the default state, the user can pull the rope from the portable winch without having to power the winch. In other words, no user action is required to adjust the portable winch to the free-layout state. The user will not need, for example, to disengage the clutch to adjust the portable winch to the free-layout state. By default, the portable winch is in the free-layout state, which allows the user to manually unwind the rope for use in rigging assembly processes.

[0088] Furthermore, the portable winch includes an automatic clutch assembly. When the user activates the portable winch via power input or power output operation, the automatic clutch assembly automatically adjusts the portable winch from a free-lay state to an engaged state. Specifically, power input or power output operation causes the automatic clutch assembly to engage the gear train assembly, thereby transmitting torque to the drum of the portable winch. In an illustrative example, the user first unwinds the rope from the portable winch, which is in a free-lay state. Then, once the rigging assembly process is complete, the user immediately activates the power input or power output operation without having to adjust the portable winch to the engaged state. Instead, when the user activates the power input or power output operation, the portable winch automatically adjusts from a free-lay state to the engaged state. Depending on the operation, the motor then rotates the drum to wind or unwind the rope onto or from the rotatable drum.

[0089] When the user stops using the portable winch, the winch can respond in several different ways depending on the load applied. Specifically, in one scenario, the user stops using the winch and no load is applied; in other words, there is no tension on the winch rope. In this case, the automatic clutch assembly automatically disengages from the gear train assembly. When the automatic clutch assembly disengages from the gear train assembly, the portable winch returns to its free-laying state as it was before the user started using it.

[0090] In another scenario, when the user stops using the portable winch, a load below a predetermined threshold is applied to it. In this case, the automatic clutch assembly automatically disengages from the gear train assembly again. When the automatic clutch assembly disengages from the gear train assembly, the portable winch returns to a free-laying state. Therefore, when a load below the predetermined threshold is applied to the portable winch, its function is similar to the previous scenario, in which no load was applied to the portable winch when the user stopped using it.

[0091] In another scenario, a load equal to or higher than a predetermined threshold load is applied to the portable winch when the user stops using it. When the load applied to the portable winch exceeds the predetermined threshold load, the automatic clutch assembly remains engaged until the load drops below the predetermined threshold load. Therefore, if the load applied to the portable winch falls below the predetermined threshold load, the automatic clutch assembly simply adjusts back to the free-layout state. This provides an additional safety measure for the portable winch. In one example, the user attaches a rope to an object. The user then activates the portable winch via power input, thereby pulling the object up a slope. When the user stops using the portable winch, the rope can still hold the object in the same position, providing tension on the rope and applying a load to the portable winch. The portable winch remains engaged, holding the object in the same position until the load on the portable winch drops below the predetermined threshold load. At this point, the automatic clutch assembly disengages from the gear train assembly, and the portable winch returns to the free-layout state.

[0092] The configuration and features of the portable winch simplify the winch operation process. The automatic winch assembly performs the required actions for the user without requiring the user to switch between engaged and free-layout states. As described above, the portable winch is in the free-layout state by default. When the user activates the portable winch via power input or power output, the portable winch automatically adjusts to the engaged state. Then, when the user deactivates the portable winch, it responds based on whether and to what extent a load is applied. If no load is applied, the portable winch adjusts back to the free-layout state. If the load applied to the portable winch is below a predetermined threshold load, the portable winch adjusts back to the free-layout state. If the load applied to the portable winch is above the predetermined threshold load, the portable winch remains in the engaged state. Once the load decreases below the predetermined threshold load, the portable winch returns to the free-layout state.

[0093] The disclosed portable winch is particularly advantageous for novice or first-time users because it eliminates the need for users to understand its mechanical structure. Users also do not need to adjust the portable winch between the engaged and free-lay states. Instead, the portable winch of this disclosure provides a default state that allows users to easily attach the rope to an object. Furthermore, novice users may be more inclined to use the portable winch. For example, as mentioned above, users may have to permanently modify their vehicles to install a winch. Such users, willing to modify their vehicles, are more likely to understand the winch's mechanical structure and the functions of the engaged and free-lay states. Therefore, users attracted to the portable winch may have less prior knowledge of winch technology. However, the portable winch of this disclosure provides an intuitive process.

[0094] Figure 1 A perspective view of a portable winch according to an exemplary embodiment of the present disclosure is shown. The portable winch 100 includes a housing 102 having a first side 104 and a second side 106. The first side 104 of the housing 102 is mechanically coupled to the second side 106 of the housing 102 via, for example, bolts, rivets, screws, or snap-fit ​​connections. Figure 1 In this embodiment, a first side 104 and a second side 106 of housing 102 are joined at a seam 108 extending around housing 102. The first side 104 and the second side 106 of housing 102 are joined to allow housing 102 to be disassembled and reassembled, thereby allowing a user to access the internal winch assembly for, for example, repair and / or replacement of various components. In one embodiment, the first side 104 of housing 102 includes a vent 110. The vent 110 includes a plurality of elongated holes configured to provide airflow through housing 102. This airflow can be used to cool the internal winch assembly of the portable winch 100. In other embodiments, the characteristics of the plurality of elongated holes can vary, including their shape, location, and number. Although... Figure 1 As not shown, the second side 106 of the housing may also include a vent with multiple elongated holes to provide additional airflow for the internal winch assembly.

[0095] The portable winch 100 further includes a front portion 118 and a rear portion 120. (As...) Figure 1As shown, when the first side 104 and the second side 106 of the housing 102 are mechanically connected, a first hole 122 is formed on the front portion 118 of the housing 102, and a cable guide 166 is disposed within and extends out of the first hole 122. The cable guide 166 includes a cable guide hole 222. The cable guide 166 is configured to guide the movement of the cable as it is wound onto or unwound from a drum (not shown). Thus, in operation, the cable (not shown) extends through the cable guide hole 222. In an example embodiment, the edge of the cable guide 166 surrounding the cable guide hole 222 may be chamfered (e.g., curved outward from the inside of the portable winch 100). Utilizing the chamfered configuration, the cable guide hole 222 provides a smoother surface to reduce abrasion to the cable as it passes through. A second hole 124 is formed on the rear portion 120 of the housing 102. The second hole 124 is located in… Figure 2B As shown more clearly below, the anchor hook 126 extends from the second hole 124. As described in more detail below, the portable winch 100 can be operated using a rope and the anchor hook 126.

[0096] The portable winch 100 further includes a handle 112 disposed along the top side of the housing 102, having a storage position and a carrying position. Figure 1 In the middle, the handle 112 is in the storage position. The handle 112 provides a structure for carrying the portable winch 100. For example... Figure 1 and Figure 2B As shown, the handle 112 may include a plurality of ridges 204 on its bottom surface. When the handle 112 is in the stored position, the plurality of ridges face the seam 108 of the portable winch 100. The plurality of ridges 204 are configured to adapt to the user's fingers. In an embodiment, a first magnet is disposed within the handle 112. The first magnet engages a corresponding second magnet disposed on or within the housing 102. The first and second magnets attract each other via magnetic force. This force biases the handle 112 into the stored position on the housing 102. Figure 1 As shown, in the storage position, the handle 112 lies flat against the housing 102. In this position, the handle 112 is unlikely to interfere with the portable winch 100. Furthermore, the handle 112 is unlikely to come into contact with the surrounding environment when stored. To adjust the handle 112 to the carrying position, the user rotates the handle 112 to overcome the attractive force between the first and second magnets.

[0097] The portable winch 100 may further include a receiving structure 114 disposed on a first side 104 of the housing 102. The receiving structure 114 is configured to receive a remote control device 116. Figure 1In this embodiment, the receiving structure 114 is disposed on the first side 104 of the housing 100. However, the receiving structure 114 can be positioned on or within the housing 102 in any of a variety of ways. In one example, the user of the portable winch 100 can provide input (e.g., commands) via wireless communication through a remote control device 116. The user can interact with the remote control device 116 to operate the portable winch 100. However, the remote control device 116 can be easily misplaced. By providing the receiving structure 114 on the housing 102, the remote control device 116 can be stored simultaneously with the portable winch 100. In another embodiment, the remote control device 116 can be replaced by a mobile device. For example, the user can use a user interface or application on their mobile device to operate the portable winch 100.

[0098] As described in more detail below, the portable winch 100 can be activated by either power output or power input operation. However, the user may leave the portable winch 100 operational for excessively long periods. Depending on the operation, the portable winch 100 may be damaged, or the rope may become tangled or knotted within the housing 102 of the portable winch 100. Therefore, the user should avoid this and monitor the portable winch 100. To allow the user to more easily monitor the portable winch 100, the portable winch 100 may further include a window 206 disposed on the rear portion 120 of the housing 102. Based on the location of the window 206, the user can monitor the internal winch assembly and rope of the portable winch 100 to avoid, for example, operating the portable winch 100 with power output for excessively long periods, or to identify unwanted tangles on the drum. With this additional ability to monitor the portable winch 100, the user is less likely to leave the portable winch 100 operational for excessively long periods.

[0099] Although Figure 1Not shown, but the portable winch 100 may further include a battery disposed within a front portion 118 below the cable guide 166 of the housing 102. Positioning the battery in the front portion 118 is intended to balance other heavier components within the portable winch 100, such as the internal winch assembly 128 (as described in more detail herein). Typically, a power supply may not be available (e.g., when performing winch operations in remote areas). Therefore, the battery allows the user to operate the portable winch 100 without, for example, plugging the portable winch 100 into a wall outlet or connecting the portable winch 100 to a vehicle's electrical system. Instead, the battery provides power to the motor of the portable winch 100 to function. As mentioned above, the housing 102 of the portable winch 100 is removable and reassembleable. Therefore, the battery can be rechargeable. In the illustrative example, the battery is fully charged and disposed within the housing 102 of the portable winch 100. After prolonged use, the battery may deplete and fail to provide sufficient power to the motor of the portable winch 100. In response, the user can separate the first side 104 of housing 102 from the second side 106 of housing 102 and remove the battery. The battery can be recharged, for example, via a docking station. The docking station can be attached to a wall-mounted power outlet to receive and charge the battery. Once fully charged, the user can place the battery back into housing 102. The portable winch can then be reused with the rechargeable battery. In another embodiment, the battery can be combined with other features of the portable winch 100. For example, the user's mobile device capable of operating the portable winch 100 can also provide a visual indication of the battery level. It should be understood that the battery disclosed herein can be used incidentally with other power tools. For example, the battery used with the portable winch 100 can be removed and mounted on other tools, such as a cordless drill, to power those tools.

[0100] Reference Figure 1 Additional view of the portable winch 100 described in Figure 2A and Figure 2B As shown in the image. For example, Figure 2A A side view of a portable winch according to an exemplary embodiment of this disclosure is shown. Figure 2B A top view of a portable winch according to an exemplary embodiment of this disclosure is shown.

[0101] Figure 3A and Figure 3B A perspective view of the internal winch assembly of a portable winch according to an exemplary embodiment of the present disclosure is shown. The internal winch assembly 128 may include a clutch assembly 180 and an inclinometer 218. (Refer to...) Figure 8A and Figure 8BThe clutch assembly 180 is described in detail. An inclinometer 218 is configured to measure the orientation of the portable winch 100. Depending on the orientation of the portable winch 100, its functionality may be limited. For example, a user may orient the portable winch 100 vertically and attempt to operate it as a lifting device. In response, the inclinometer 218 will measure changes in orientation and prevent the user from activating power input or power output operation. In another embodiment, the portable winch 100 may limit, for example, its pulling capacity during power input operation. As the orientation of the portable winch 100 changes, the inclinometer 218 will measure the orientation. In response, the portable winch 100 may restrict the user to perform specific operations or provide only a portion of its load capacity.

[0102] The internal winch assembly 128 may further include a motor assembly 130, a belt-driven reduction assembly 132, a drum 134, and a gear train assembly 136. The motor assembly 130 and the gear train assembly 136 are each coupled to the drum 134 of the portable winch 100 to rotate the drum 134 about a central axis 138. Figure 3A In this configuration, the motor assembly 130 is positioned at the front portion 140 of the internal winch assembly 128, and the gear train assembly 136 and the belt drive reduction assembly 132 are positioned at the rear portion 142 of the internal winch assembly 128. The drum 134 is connected to the motor assembly 130 via the belt drive reduction assembly 132, which is connected to the motor assembly 130 through the interior of the cylindrical portion of the drum 134.

[0103] Although not in Figure 3A and Figure 3B As shown, the internal winch assembly 128 includes a controller. The controller is typically located within the housing of the portable winch. The controller may be an electronic controller (such as a microcontroller) and may control the speed of the motor within the motor assembly 130. In one example, the user of the portable winch provides input (e.g., commands) to the controller to operate the portable winch. As previously mentioned, the user may use a remote control device 116 that communicates wirelessly with the controller. In other embodiments, the portable winch may include input devices (e.g., buttons) on the housing to control the speed of the controller and the motor within the motor assembly 130.

[0104] In one example operation of the portable winch, the motor assembly 130 can drive the drum 134 to rotate about a central axis 138 in a first direction or a second direction. The second direction is opposite to the first direction. For example, the motor assembly 130 can be driven in the first direction to rotate the drum 134 about the central axis 138; similarly, the motor assembly 130 can be driven in the second direction opposite to the first direction to rotate the drum 134 about the central axis 138 in the second direction. In one example, a rope (e.g., cable) can be wound around the smooth outer surface 144 of the drum 134 to perform a pull operation of the portable winch. In another example, the outer surface 144 of the drum 134 may include a plurality of grooves that receive and organize the rope when it is wound onto the drum 134. In some examples, the rope may include hooks to increase the ease of attaching the rope to an object (e.g., a vehicle) to perform a pull operation. Depending on the application, the rope can have any length. In one embodiment, the rope can be 50 feet long and form five layers when fully wound around the drum 134.

[0105] Furthermore, various components of the internal winch assembly 128 can be positioned to balance the portable winch 100. For example, returning to... Figure 1 A rope extends from the front portion 118. This rope may also be referred to as a guide rope. Anchor hook 126 is located on the rear portion 120. In operation, the user can attach the guide rope to an object. Another rope (referred to as an anchor rope) is used to attach the anchor hook 126 to an anchor point. When activated via power input operation, the portable winch 100 experiences pulling forces in opposite directions. That is, the guide rope and the anchor rope exert opposing forces on the portable winch 100. Therefore, depending on the height of the object and the height of the anchor point, the portable winch 100 can be raised from the ground. Therefore, the anchor hook 126 and the guide rope 166 may be referred to as suspension points.

[0106] Without proper balance, the portable winch 100 is prone to twisting, rotating, and shifting when lifted from the ground. This movement can lead to adverse effects. For example, the portable winch 100 may affect the surrounding environment, potentially causing damage. Furthermore, the portable winch 100 may rotate, causing tangling of the anchor rope or guide cable. This could reduce the performance of the portable winch 100 or potentially create an unsafe environment. Additionally, with movement, the anchor rope may detach from the anchor hook 126. Therefore, balancing the portable winch to reduce movement is likely advantageous.

[0107] Reference Figure 2AThe portable winch 100 includes a horizontal axis 210. The horizontal axis 210 may also be referred to as the x-axis. The horizontal axis 210 generally divides the portable winch 100 into a top portion 212 and a bottom portion 214. To reduce rotation of the portable winch 100, the portable winch 100 is configured to have a low center of gravity located below the horizontal axis 210. For example, see reference... Figure 3A and Figure 3B The motor assembly 130 typically constitutes a large portion of the weight of the internal winch assembly 128. Therefore, the motor assembly 130 can be positioned within the bottom portion 214 of the portable winch 100 to provide a center of gravity located below the horizontal axis 210. For the same reason, the drum 134 can also be positioned towards the bottom portion 214 of the portable winch 100. Furthermore, the placement of the motor assembly 130 can be a parallel-axis design. This allows the motor of the motor assembly 130 to be lower than the drum 134, but also aligned with the drum 134 and the cable guide 166 (below the tensioned rope). This arrangement optimizes the center of gravity of the portable winch 100. When the motor is aligned with the rope and lower than the suspension points (anchor 126 and cable guide 166, both above the horizontal axis 210), the portable winch provides a more stable platform that is predictable and safer. This arrangement also contributes to the overall compactness and aesthetics of the portable winch.

[0108] The internal winch assembly 128 can also be balanced between the first side 104 and the second side 106 of the portable winch 100 (e.g., for balanced lifting via the handle 112). See reference. Figure 3A and Figure 3B The belt drive reduction assembly 132 and the gear train assembly 136 are positioned on opposite sides of the internal winch assembly 128. Furthermore, the motor assembly 130 and the drum 134 are positioned such that the weight of the motor assembly 130 and the drum 134 is evenly distributed between the first side 104 and the second side 106 of the portable winch.

[0109] The internal winch assembly 128 can also be configured to provide various performance benefits. For example, the drum 134 is located within the rear portion 120, and the cable guide 116 is located at the front portion 118 of the portable winch 100 in the opposite direction to the drum 134. This configuration provides a low deviation angle. With a low deviation angle, the rope is more likely to wind around the drum 134 in an orderly manner, with each layer wound on a lower layer. Furthermore, with the drum 134 positioned closer to the anchor hook 126 within the rear portion 120, the load path between the drum 134 and the anchor hook 126 is concentrated. This concentrated load path between the drum 134 and the anchor hook 126 allows for a smaller, lighter, and stronger load-bearing frame guide, resulting in various performance benefits.

[0110] Automatic power output cut-off Figure 4Aand Figure 4B A cross-sectional view of a portable winch according to an exemplary embodiment of this disclosure is shown. (Refer to...) Figure 4A and Figure 4B The portable winch 100 includes a rope 146 having a first end 150 and a second end 152. The second end 152 of the rope 146 is attached to a drum 134. Figure 4A As shown, the drum 134 includes a hole 224 that receives and secures the second end 152 of the rope 146 to the drum 134. When activated by a user, the motor assembly can drive the drum 134 to rotate about a central axis 138 in a first direction. In one example, the drum 134 rotates about the central axis 138 in the first direction or clockwise. The first direction is determined by... Figure 4B Arrow 148 indicates this. As drum 134 rotates in the first direction, rope 146 unwinds from drum 134, and the first end 150 of rope 146 extends further away from portable winch 100. The direction of extension of rope 146 is indicated by arrow 154. Because rope 146 unwinds from drum 134 and the first end 150 extends away from portable winch 100, this operation can be referred to as power output operation.

[0111] Figure 5A and Figure 5B A cross-sectional view of a portable winch according to an exemplary embodiment of this disclosure is shown. Figures 4A to 4B As shown, when activated by the user, the drum 134 can rotate about the central axis 138 in a first direction to unwind the rope 146. However, in Figure 5A and Figure 5B The diagram illustrates a portable winch 100 in which a user may have activated the portable winch 100 via power output operation for an extended period. This can cause the portable winch 100 to wind the rope 146 backward onto the drum 134. In other words, as the user continues to supply power to the portable winch 100 via power output operation, the drum 134 continues to rotate in a first direction 148 or clockwise until the rope 146 is wound backward onto the drum 134. For example, as... Figure 5A As shown, the drum 134 rotates, thereby winding the rope 146 onto the drum 134. As the rope 146 is wound backwards onto the drum 134, the first end 150 of the rope 146 retracts toward the portable winch 100, as... Figure 5A and Figure 5B As indicated by arrow 160. When the user rewinds the rope 146 onto the drum 134 of the portable winch 100, the rope 146 may become tangled or come into contact with and damage various components of the internal winch assembly. Therefore, the user should avoid activating the portable winch 100 via power output operation to prevent the rope 146 from being rewinded onto the drum 134.

[0112] However, users may find it difficult to monitor and avoid this situation using current portable winch technology. For example, see reference... Figure 1 The portable winch described includes a housing that encloses and protects the internal winch assembly. While the housing offers various advantages (and is typically included in various winches), it often restricts the user's view of the rope and drum. Without proper observation of the rope and drum, the user may find it difficult to determine when the rope is overstretched and when it will wind backwards onto the drum. Consequently, the user may unintentionally keep the portable winch, which has a power output configuration, active for too long, potentially leading to negative effects. In another example, the portable winch may be located at the anchor point to the extent that the housing does not obstruct the user's view, making it invisible to the user at the opposite end of the rope. Furthermore, the user may control the portable winch wirelessly, and the user may be too far away to properly monitor it. These non-limiting examples illustrate various situations in which the user may find it difficult to determine when to activate the portable winch.

[0113] Therefore, the portable winch of this disclosure includes an automatic power output cut-off feature, eliminating the need for the user to determine when to activate the portable winch. With this automatic power output cut-off feature, the user does not need to worry about the portable winch's power output exceeding the rope length or winding the rope onto the drum in the opposite direction. Instead, the portable winch automatically cuts off power when the rope begins to wind onto the drum in the opposite direction. Thus, the potential adverse effects of the rope winding onto the drum can be avoided.

[0114] Back Figure 5A and Figure 5B The portable winch 100 further includes a switch 156 and a reaction member 158. The reaction member 158 has an engaged position and a disengaged position. Figure 5A and Figure 5B In the middle, the reaction member 158 is in the engaged position. When in the engaged position, the reaction member 158 engages the switch 156 to disable the energizing operation. Figure 4A and Figure 4B In the disengaged position, the reaction component 158 ​​is in the disengaged position. When in the disengaged position, the reaction component 158 ​​does not engage the switch 156, and the energized operation is not disabled. The disengaged position is... Figures 4A to 5B The default position of the reaction component 158.

[0115] In the illustrative example, the user is not operating the portable winch 100. Therefore, the reaction member 158 is in the position as... Figure 4BThe disengaged position is shown. The user then activates the portable winch 100 via power output operation to unwind the rope 146 from the drum 134. As the rope 146 unwinds from the drum 134, the first end 150 of the rope 146 is in... Figure 4B The direction of the middle arrow 154 extends away from the portable winch. However, if the user over-powers the portable winch 100, the rope 146 begins to wind onto the drum 134 in the opposite direction. The reaction member 158 remains in the disengaged position. As the rope 146 continues to wind backwards onto the drum 134, the rope 146 contacts the reaction member 158, thereby forcing the reaction member 158 into the engaged position. As described above, in the engaged position, the reaction member 158 engages the switch 156 to deactivate the portable winch 100. In other words, the user can continue to use the portable winch 100 in a power output configuration without worrying about over-stretching the rope and winding it backwards onto the drum 134. Instead, as the rope 146 begins to rewind onto the drum 134, the reaction member 158 engages the switch 156, and the portable winch 100 is de-powered.

[0116] exist Figures 4A to 5B In this embodiment, the reaction member 158 is a flexible plastic component configured to function like a spring. Therefore, when the rope 146 is removed from the reaction member 158, the reaction member 158 returns to its default disengaged position. It should also be understood that in various embodiments, the reaction member 158 can be any of a variety of designs. For example, the reaction member 158 may comprise a metal spring material. The reaction member 158 may also be a pull rod mounted on a frame rail with a spring to return the reaction member 158 to the disengaged position.

[0117] Automatic power input cut-off Figure 6 A cross-sectional view of a portable winch according to an exemplary embodiment of this disclosure is shown. Figure 6 Several components of the portable winch are not shown, including, for example, the drum. However, Figure 6 The function and reference of the portable winch 100 shown Figures 4A to 5B The portable winch 100 shown and described is identical. That is, the user can activate the motor assembly to drive the drum to rotate about a central axis. The user can also activate the portable winch 100 via power input operation. With this operation, the drum rotates about the central axis in a second direction to properly wind the rope 146 onto the drum. As the rope 146 is wound onto the drum, the first end 150 of the rope 146 retracts toward the portable winch 100. In one example, the first end 150 of the rope 146 is attached to an object. When the user activates the power input operation, the portable winch operates to pull the object toward the portable winch 100.

[0118] However, as described with reference to power output operation, users may operate the portable winch with power input for excessively long periods, leading to undesirable results. Therefore, the portable winch of this disclosure includes an automatic power input cut-off feature, eliminating the need for the user to determine when to stop operating the portable winch. With this automatic power input cut-off feature, users do not need to worry about operating the portable winch with power input for extended periods. Instead, the portable winch automatically cuts off power when the first end of the rope contacts the cable guide.

[0119] Reference Figures 6 to 7B The portable winch 100 includes a power input switch 174 and a housing stop 172. The portable winch 100 further includes a cable guide 166 having a cable guide hole 222 through which a rope 146 extends. The cable guide 166 has an engaged position and an disengaged position. Figure 7B In the middle, the cable guide 166 is in the engaged position. When in the engaged position, the cable guide 166 engages the power input switch 174 to disable power input operation. Figure 7A In this configuration, cable guide 166 is in the disengaged position. When in the disengaged position, cable guide 166 does not engage power input switch 174, and power input operation is not disabled. The disengaged position is the default position of cable guide 166.

[0120] The cable guide 166 further includes a slot 176 configured to receive a corresponding magnet 164. In one embodiment, the cable guide 166 is held in a default disengaged position via the magnet 164 and the plate 168. That is, as Figure 7A As shown, magnet 164 is attracted to plate 168. To transition from the disengaged to the engaged position, the force between magnet 164 and plate 168 must be overcome. Once this force is overcome, cable guide 166 immediately rotates via pin 170 until it contacts power input switch 174. Power input operation is deactivated when cable guide 166 contacts power input switch 174. Portable winch 100 may also include housing stop 172 to prevent cable guide 166 from damaging power input switch 174. Once the user powers the rope back out, cable guide 166 automatically returns to the disengaged position. The return of cable guide 166 to the disengaged position is caused by the attractive force between magnet 164 and plate 168.

[0121] In the illustrative example, the user does not operate the portable winch 100. Therefore, the cable guide 166 is in the disengaged position. The user then activates the portable winch 100 by power input to wind the rope 146 onto the drum. As the rope 146 is wound onto the drum 134, the rope 146 retracts through the cable guide hole 222 of the cable guide 166 of the portable winch 100. Therefore, the first end 150 of the rope 146 and the stop 162 also retract toward the portable winch 100. However, if the user applies excessive power to the portable winch 100, the stop 162 contacts the front surface of the cable guide 166. As described, the rope 146 extends through the cable guide hole 222. However, the cable guide hole 222 is sized to prevent the stop 162 from extending through, for example, a cable eyelet. When the stop 162 contacts the cable guide 166, the attraction between the magnet 164 and the plate 168 is overcome, allowing the cable guide to pivot rotatably around the pin 170. Figures 6 to 7B In some embodiments, the cable guide 166 is held in the disengaged position by the attraction between the magnet 164 and the plate 168. However, in many embodiments, various springs can be used instead of the magnet 164 to obtain a similar bias force as required for the specific applications disclosed above.

[0122] Upon full rotation, the cable guide 166 contacts the power input switch 174, which automatically disables power input operation. Therefore, the portable winch 100 disables power input operation before permanent damage occurs, without requiring user monitoring. Furthermore, many portable winches are heavy and use metal frames as structural members to mount the cable guide. Utilizing the automatic power input cut-off feature, the stop 162 or the first end of the rope does not exert a significant force on the cable guide 166. Instead, as described above, power input operation is disabled when the stop 162 contacts and rotates the cable guide 166. Therefore, the amount of metal used for the frame can be greatly reduced and is no longer a structural requirement.

[0123] Automatic clutch assembly Figure 8A and Figure 8B A cross-sectional view of a gear train assembly and a clutch assembly of a portable winch according to an exemplary embodiment of the present disclosure is shown. The clutch assembly 180 includes a clutch assembly housing 194. The clutch assembly 180 further includes an electromechanical solenoid 182, a pivot arm 184, and a clutch pin 186. The electromechanical solenoid 182, the pivot arm 184, and the clutch pin 186 are all disposed within the clutch assembly housing 194 of the clutch assembly 180. Furthermore, the clutch pin 186 is configured to extend through a clutch housing bore 196 to engage with a rotating ring gear 188 of the gear train assembly 136.

[0124] Reference Figure 8A When clutch assembly 180 is in the disengaged position, clutch pin 186 is disengaged from rotating ring gear 188. When clutch assembly 180 is disengaged from gear train assembly 136, the portable winch is in a free-laying state. Figure 8A In this embodiment, the clutch assembly 180 is in a disengaged position, which is the default position. In this default position, the portable winch is in a free-layout state. In the free-layout state, the winch drum is mechanically separated from the motor assembly, allowing the user to pull the rope and thus unwind the rope from the drum without providing power to the winch. Figure 8B In the engagement position, clutch assembly 180 is engaged, and clutch pin 186 engages rotating ring gear 188. In the engagement position, the drum is mechanically attached to the motor assembly.

[0125] When the user activates the portable winch via power input or power output, the clutch assembly 180 automatically engages the gear train assembly 136, allowing the motor to transmit torque and rotate the drum of the portable winch. Specifically, the portable winch utilizes an electromechanical solenoid 182. In the default state, the portable winch is in a free-layout position, and the electromechanical solenoid 182 is not energized. When the electromechanical solenoid 182 is not energized, a spring provides mechanical bias to keep the clutch pin 186 disengaged from the rotating ring gear 188. In alternative embodiments, other types of mechanical biasing devices are implemented to ensure that the default state of the clutch assembly 180 is in the disengaged position, and the portable winch is in a free-layout position.

[0126] When the user activates the power input or power output operation, the electromechanical solenoid 182 is energized. When energized, the electromechanical solenoid 182 overcomes the force of the spring and moves along... Figure 8BThe shaft 190 is translated vertically downwards in the direction of the center arrow 192. The shaft 190 is perpendicular to the clutch pin 186. This downward translation of the shaft 190 causes the pivot arm 184 to rotate about the pivot point 220. The pivot arm 184 is an L-shaped bracket fixed to the clutch assembly housing 194. In this embodiment, the pivot point 220 is the pin fixed to the clutch assembly housing 194. By translating downwards, the shaft 190 provides torque to the pivot arm 184, which then pivots about the pivot point 220. This torque at the pivot arm 184 is converted into axial movement of the clutch pin 186. That is, this torque pushes the clutch pin 186 through the clutch housing bore 196 and away from the clutch assembly housing 194. The clutch pin 186 extends a sufficient horizontal length through the clutch housing bore 196 to engage the rotating ring gear 188. When clutch pin 186 engages the rotating ring gear 188, clutch pin 186 prevents the rotating ring gear 188 from rotating, which allows torque to be transmitted to the drum. Electromechanical solenoid 182 can advantageously be activated via a remote control device and / or via a mobile application.

[0127] When the user stops activating the portable winch via power input or power output, the electromechanical solenoid 182 is de-energized. When the electromechanical solenoid 182 is de-energized, the shaft 190 is de-energized via a spring. Figure 8A The direction of the central arrow 198 extends vertically upward from the electromechanical solenoid 182. This upward translation of the shaft 190 causes the pivot arm 184 to rotate about the pivot point 220. In response, the clutch pin 186 is drawn through the clutch housing bore 196 and pulled toward the clutch assembly housing 194. When the clutch pin 186 is drawn through the clutch housing bore 196, the clutch pin 186 disengages from the rotating ring gear 188 of the gear train assembly 136. When the clutch pin 186 disengages from the gear train assembly 136, the portable winch returns to the default free-layout state.

[0128] The clutch pin 186 may also include a first end 200 in a dovetail shape. For example, the dovetail shape may include angled sidewalls flared outwards to the front surface of the clutch pin 186. As described further herein, the angled sidewalls engage a rotating ring gear 188. Alternatively, the first end 200 may be triangular in shape, providing angled sidewalls only on a portion of the clutch pin 186. The rotating ring gear 188 may include a plurality of complementary notches 202 to engage the dovetail shape of the first end 200 of the clutch pin 186. With this configuration, the rotating ring gear 188 provides a lateral force that pulls the clutch pin 186 away from the clutch assembly housing 194. In the example, the user stops using the portable winch. After the user stops using the portable winch, the clutch assembly 180 can respond to various factors.

[0129] In one example, the user deactivates the portable winch. Furthermore, when the user deactivates the portable winch, no load is applied to it. In other words, there is no tension on the winch rope. In this situation, the automatic clutch assembly 180 disengages from the gear train assembly 136. Specifically, the electromechanical solenoid 182 is de-energized, and the spring causes the shaft 190 to move along... Figure 8A The direction of the center arrow 198 extends vertically upward from the electromechanical solenoid 182. This upward translational pull-out clutch pin 186 of the shaft 190 passes through the clutch housing bore 196 to disengage from the rotating ring gear 188 of the gear train assembly 136. As the clutch pin 186 disengages from the gear train assembly 136, the portable winch returns to the default free-layout state.

[0130] In another example, the user deactivates the portable winch and applies a load to it via tension in the rope. This tension provides a rotational force on the drum. This rotational force on the drum is converted into a rotational force on the rotating gear 188. When the clutch pin 186 prevents the rotating gear 188 from rotating, the rotating gear 188 converts the rotational force into a rotational force along the... Figure 8B A horizontal lateral force in the direction of arrow 216. However, in this case, the load is below a predetermined load threshold. When the load is below the predetermined load threshold, the lateral force is insufficient to hold the clutch pin 186 in the engaged position. Therefore, the clutch assembly 180 retracts the clutch pin 186 (as previously described), and the clutch pin 186 disengages from the gear train assembly 136. Therefore, the portable winch returns to the default free-layout state. Thus, when the user stops using the portable winch and the load applied to the portable winch is below the predetermined threshold load, the portable winch returns to the free-layout state.

[0131] In another example, the user deactivates the portable winch and applies a load to it via tension in the rope. Again, tension provides a rotational force on the drum, which is converted into a rotational force on the rotating gear 188. Clutch pin 186 prevents the rotating gear 188 from rotating, and the rotating gear 188 converts the rotational force into a force along the... Figure 8B The horizontal lateral force is directed in the direction of arrow 216. In this example, the load is above a predetermined threshold load. When the load is above the predetermined threshold load, the lateral force keeps the clutch pin 186 in the engaged position. In other words, even when the user stops using the portable winch, the portable winch remains engaged if the load is above the predetermined threshold load. If the load drops below the predetermined threshold load, the clutch assembly 180 disengages from the gear assembly 180, and the portable winch returns to the free-laying state.

[0132] In various embodiments, the geometry of the clutch pin 186 and the rotating ring gear 188 can be varied to alter the predetermined threshold load. In one example, the predetermined threshold load could be 20 lbs. Thus, returning to the description above, when the load on the portable winch is higher than 20 lbs, the portable winch will be safely in the engaged position. However, if the load is lower than 20 lbs, the clutch pin 196 will retract into the clutch assembly housing 194, and the portable winch will return to its default free-laying state. In another example, the first end 200 of the clutch pin 186 can engage one of the plurality of complementary recesses 202 at a greater angle. Thus, with the same amount of rotational force on the rotating ring gear 188, the rotating ring gear 188 will exert a greater lateral force on the clutch pin 186 in the direction of arrow 216. Therefore, the predetermined threshold load can be increased (e.g., from 20 lbs to 40 lbs). Similarly, the first end 200 of the clutch pin 186 can engage one of the plurality of complementary recesses 202 at a smaller angle. When the amount of rotational force on the rotating ring gear 188 is the same, the rotating ring gear 188 will exert a smaller lateral force on the clutch pin 186 in the direction of arrow 216.

[0133] The foregoing description of the embodiments is provided for purposes of illustration and description. It is not intended to be exhaustive or limiting of the present disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, and where applicable, these elements or features are interchangeable and can be used in selected embodiments, even if not specifically shown or described. These embodiments can also be varied in many ways. Such variations should not be considered as departing from the present disclosure, and all such modifications are intended to be included within the scope of the present disclosure.

Claims

1. An automatic clutch assembly, comprising: An electromechanical solenoid having a shaft disposed therein; A pivot arm, which is hinged to the electromechanical solenoid; as well as A clutch pin is disposed perpendicular to the shaft and connected to the pivot arm, wherein the clutch pin is in an engaged position when the electromechanical solenoid is activated, and wherein the clutch pin is in an disengaged position when the electromechanical solenoid is deactivated.

2. The automatic clutch assembly according to claim 1, wherein, The first end of the pivot arm is connected to the shaft of the electromechanical solenoid, and the second end of the pivot arm is connected to the clutch pin.

3. The automatic clutch assembly according to claim 2, wherein, When the electromechanical solenoid is deactivated, the shaft extends out from the electromechanical solenoid.

4. The automatic clutch assembly according to claim 3, wherein, When the electromechanical solenoid is activated, the shaft retracts into the electromechanical solenoid.

5. The automatic clutch assembly according to claim 4, wherein, It further includes a spring to mechanically bias the clutch pin to the disengaged position when the electromechanical solenoid is deactivated.

6. The automatic clutch assembly according to claim 5, wherein, The pivot arm rotates around the pin.

7. The automatic clutch assembly according to claim 1, wherein, The clutch pin extends through a hole in the automatic clutch assembly.

8. The automatic clutch assembly according to claim 1, wherein, The vertical translation of the shaft causes the horizontal translation of the clutch pin.

9. The automatic clutch assembly according to claim 1, wherein, The clutch pin includes a first end and a second end, wherein the first end is connected to the pivot arm.

10. The automatic clutch assembly according to claim 9, wherein, The second end of the clutch pin is in the shape of a dovetail.

11. An automatic clutch assembly comprising: A pivot arm, which is connected to an electromechanical solenoid; as well as A clutch pin having an engaged position and an disengaged position, wherein, in the engaged position, the clutch pin engages a gear assembly.

12. The automatic clutch assembly according to claim 11, wherein, The clutch pin extends through a hole in the automatic clutch assembly to engage the gear assembly.

13. The automatic clutch assembly according to claim 12, wherein, When the clutch pin is in the engaged position, the clutch pin engages the rotating gear of the gear assembly.

14. The automatic clutch assembly according to claim 13, wherein, The clutch pin includes a first end and a second end, the first end being connected to the pivot arm, wherein when the clutch pin is in the engaged position, the second end engages the rotating gear of the gear assembly.

15. The automatic clutch assembly according to claim 14, wherein, The rotating gear of the gear assembly includes multiple notches.

16. The automatic clutch assembly according to claim 15, wherein, When the clutch pin is in the engaged position, the second end of the clutch pin engages with one of the plurality of recesses of the rotating gear.

17. The automatic clutch assembly according to claim 16, wherein, When the second end of the clutch pin engages one of the plurality of recesses of the rotating gear, the one of the plurality of recesses is configured to convert the rotational force on the rotating gear into a lateral force on the clutch pin.

18. The automatic clutch assembly according to claim 17, wherein, When the lateral force is higher than a predetermined threshold load, the clutch pin remains engaged with the rotating gear.

19. The automatic clutch assembly according to claim 18, wherein, When the lateral force is lower than the predetermined threshold load, the clutch pin disengages from the rotating gear.

20. The automatic clutch assembly according to claim 19, wherein, The second end of the clutch pin is in the shape of a dovetail.

21. A portable winch comprising: Reaction component; as well as Cable, the cable being configured to unwind from a rotatable spool, When the cable extends excessively from the rotatable drum, the cable engages the reaction component, thereby deactivating the portable winch.

22. The portable winch according to claim 21, wherein, The reaction component includes a first position and a second position, wherein when the reaction component is set in the second position, the portable winch is deactivated.

23. The portable winch according to claim 22, wherein, The reaction component is biased to the first position.

24. The portable winch of claim 23, further comprising a switch, wherein, The portable winch is deactivated when the reaction component engages the switch in the second position.

25. The portable winch according to claim 24, wherein, When the reaction component is in the second position, the cable engages the reaction component and forces the reaction component to engage the switch.

26. The portable winch according to claim 21, wherein, The reaction component is a flexible plastic component.

27. The portable winch according to claim 21, wherein, The reaction component is a spring.

28. The portable winch according to claim 21, wherein, As the cable is wound backward onto the rotatable spool, the cable extends beyond the rotatable spool.

29. The portable winch according to claim 21, wherein, The reaction component includes a first side and a second side.

30. The portable winch according to claim 29, wherein, When the cable extends excessively from the rotatable spool, the cable engages the first side of the reaction member.

31. A portable winch comprising: A cable guide, which is pivotally connected to the housing of the portable winch; as well as The cable, configured to extend through the cable guide and be wound onto a rotatable spool, In response to a force applied to the front surface of the cable guide, the cable guide pivots and engages a switch to deactivate the portable winch.

32. The portable winch according to claim 31, wherein, The cable guide includes a first position and a second position.

33. The portable winch according to claim 32, wherein, The cable guide is biased toward the first position, and the portable winch is enabled when the cable guide is in the first position.

34. The portable winch according to claim 33, wherein, The cable guide includes a magnet configured to engage a plate in the housing, wherein the cable guide is biased toward the first position via a magnetic force between the plate and the magnet.

35. The portable winch according to claim 34, wherein, In response to a force exerted on the front surface of the cable guide that overcomes the magnetic force between the plate and the magnet, the cable guide pivots around a pin.

36. The portable winch according to claim 31, wherein, The cable includes a stop member configured to provide force on the front surface of the cable guide.

37. The portable winch according to claim 31, wherein, The portable winch includes a housing stop configured to prevent the cable guide from rotating excessively and to prevent damage to the switch.

38. The portable winch according to claim 34, wherein, The cable guide includes a groove configured to receive the magnet.

39. The portable winch according to claim 31, wherein, The cable guide extends from the hole in the portable winch.

40. The portable winch according to claim 31, wherein, In response to a force applied to the front surface of the cable guide, the cable guide is turned toward the portable winch.

41. A portable winch comprising: motor; Rotatable drum; as well as Clutch assembly, the clutch assembly being configured to engage a gear assembly, In the default state, the motor is mechanically separated from the rotatable drum, and In response to the activation of the portable winch, the clutch assembly automatically engages the gear assembly, thereby mechanically attaching the motor to the rotatable drum.

42. The portable winch according to claim 41, wherein, When the portable winch is no longer in use, a load is applied to the portable winch.

43. The portable winch according to claim 42, wherein, When the load is below a predetermined threshold load, the clutch assembly automatically disengages from the gear assembly.

44. The portable winch according to claim 43, wherein, When the load is higher than the predetermined threshold load, the clutch assembly remains engaged with the gear assembly.

45. The portable winch according to claim 44, wherein, When the load drops below the predetermined threshold load, the clutch assembly automatically disengages from the gear assembly.

46. ​​The portable winch according to claim 41, wherein, The clutch assembly includes: An electromechanical solenoid having a shaft disposed therein; A pivot arm, which is hinged to the electromechanical solenoid; and A clutch pin is disposed perpendicular to the shaft and connected to the pivot arm, wherein the clutch pin engages the gear assembly when the electromechanical solenoid is activated, and disengages from the gear assembly when the electromechanical solenoid is deactivated.

47. The portable winch according to claim 46, wherein, The first end of the pivot arm is hinged to the electromechanical solenoid, and the second end of the pivot arm is connected to the clutch pin.

48. The portable winch according to claim 47, wherein, It further includes a spring to mechanically bias the clutch pin to a disengaged position when the electromechanical solenoid is deactivated.

49. The portable winch of claim 41, further comprising: Reaction component; as well as A cable configured to unwind from the rotatable drum, wherein when the cable extends excessively from the rotatable drum, the cable engages the reaction member, thereby deactivating the portable winch.

50. The portable winch of claim 49, further comprising a switch, wherein, The portable winch is deactivated when the reaction component engages the switch.

51. The portable winch of claim 41, further comprising: A cable guide, which is rotatably connected to the housing of the portable winch; as well as A cable configured to extend through the cable guide and be wound onto the rotatable spool. In response to a force applied to the front surface of the cable guide, the cable guide rotates and engages a switch to deactivate the portable winch.

52. The portable winch according to claim 51, wherein, The cable guide includes a first position and a second position.

53. The portable winch according to claim 52, wherein, The cable guide is biased toward the first position, and the portable winch is enabled when the cable guide is in the first position.

54. The portable winch of claim 41, further comprising a battery configured to power the motor.

55. A portable winch, comprising: A housing having a first side, a second side, a top portion, and a bottom portion; A rotatable drum is disposed within the rear portion of the bottom portion of the housing; as well as A motor assembly is disposed within the front portion of the bottom portion of the housing, wherein the motor assembly is aligned with the rotatable drum and the cable guide.

56. The portable winch of claim 55, further comprising a belt-driven reduction gear assembly and a gear train assembly, wherein, The belt drive reduction assembly is disposed on the first side of the housing, and the gear train assembly is disposed on the second side of the housing.

57. The portable winch according to claim 55, wherein, In the default state, the motor of the motor assembly is mechanically separated from the rotatable drum, and wherein, in response to the activation of the portable winch, the clutch assembly automatically engages the gear assembly, thereby mechanically attaching the motor to the rotatable drum.

58. The portable winch according to claim 57, wherein, When the portable winch is no longer in use, a load is applied to the portable winch.

59. The portable winch according to claim 58, wherein, When the load is below a predetermined threshold load, the clutch assembly automatically disengages from the gear assembly.

60. The portable winch according to claim 59, wherein, When the load is higher than the predetermined threshold load, the clutch assembly remains engaged with the gear assembly.

Images