Swivel assembly with braking for watersports equipment

Abstract

A swivel assembly includes a bracket for securing the swivel assembly to a wakeboard rack or watersports equipment rack, a hub assembly mounted to the bracket, the hub assembly including a spindle housed within the hub assembly, the spindle being rotatable about a central axis, a braking mechanism within the hub assembly, the braking mechanism comprising a permanent magnet brake, wherein the permanent magnet brake is configured to engage to stop rotation of the spindle by applying magnetic force from one or more permanent magnets and be released by applying an opposing electromagnetic force that counteracts the permanent magnet force, allowing free rotation of the spindle and a bore mounting.

Description

RELATED APPLICATIONS

[0001] The present application claims priority to U.S. Provisional Patent Application No. 63 / 700,112, filed Sep. 27, 2024, entitled “SWIVEL ASSEMBLY WITH BRAKING FOR WATERSPORTS EQUIPMENT” hereby incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention relates to boating. More particularly, but not exclusively, the present disclosure relates to a swivel rack with braking for watersports equipment which may be affixed to a boat.BACKGROUND OF THE ART

[0003] With the increase in the number and type of water sports equipment and accessories brought aboard and stowed on a boat, boaters continue to look for viable alternatives to stow water sports equipment and accessories in such a way that they are conveniently and readily accessible yet still capable of being positioned out of the way to not hinder a boater's safe operation of, care for and ultimate enjoyment of the boat. Current equipment racks fail to adequately provide a solution that addresses the safety of the boat and its operation, the occupants within and around the boat, the surroundings of the boat both within and out of the water, and the water sports equipment stowed aboard the boat. Therefore, what is needed is a swiveling watersports equipment rack that addresses each of the shortcomings with current water sports equipment racks.SUMMARY

[0004] Therefore, it is a primary object, feature, or advantage of the present invention to improve over the state of the art.

[0005] It is a further object, feature, or advantage of the present invention to provide push-button automation to a swiveling watersports equipment rack.

[0006] It is a still further object, feature, or advantage of the present invention to provide the captain of a boat with the ability to automatically operate one or more swiveling watersports equipment racks without having to leave the helm thereby increasing the safe operation of the boat.

[0007] It is a still further object, feature, or advantage to improve safety of water sports equipment racks.

[0008] Another object, feature, or advantage is elimination of the need for a mechanical pin locking mechanism to lock or unlock a swivel in place.

[0009] Yet another object, feature, or advantage is to use the magnetic force of permanent magnets for a failsafe locking system.

[0010] Another object, feature, or advantage is to provide a pinless swivel design which is operated by electromagnetic brake or brake mechanism and released by a button from a battery.

[0011] Yet another object, feature, or advantage is to provide a breakaway protection so that if a wakeboard or other sports equipment hits an obstacle, the swivel apparatus may swive.

[0012] A still further object, feature, or advantage is to provide a battery-powered electromagnetic release.

[0013] Another object, feature, or advantage is to provide a spring mechanism to automatically return the spindle of a swivel assembly to predefined positions.

[0014] Yet another object, feature, or advantage is to incorporate sensors that detect obstacles and either alert the user or allow for rotation of the swivel assembly.

[0015] One or more of these and or other objects, features, or advantages will become apparent from the description that follows. It is to be understood that no single embodiment need meet or provide all or any of these objects, features, or advantages as different embodiments may have different objects, features, or advantages.

[0016] According to one aspect, a swivel assembly for use with a wakeboard rack or other watersports equipment is provided. The swivel assembly includes a bracket for securing the swivel assembly to a wakeboard rack or watersports equipment rack, a hub assembly mounted to the bracket, the hub assembly includes a spindle housed within the hub assembly, the spindle being rotatable about a central axis, a braking mechanism within the hub assembly, and a switch, wherein the switch is manually operable to allow a user to control engagement and / or release of the braking mechanism.

[0017] According to another aspect, a swivel assembly for use with a wakeboard rack or other watersports equipment is provided. The swivel assembly includes a bracket for securing the swivel assembly to a wakeboard rack or watersports equipment rack, a hub assembly mounted to the bracket, the hub assembly including a spindle housed within the hub assembly, the spindle being rotatable about a central axis, a braking mechanism within the hub assembly, the braking mechanism comprising a permanent magnet brake, wherein the permanent magnet brake is configured to engage to stop rotation of the spindle by applying magnetic force from one or more permanent magnets and be released by applying an opposing electromagnetic force that counteracts the permanent magnet force, allowing free rotation of the spindle and a bore mounting wherein the braking mechanism is concentrically mounted around the spindle, allowing for even distribution of braking force around the spindle, a battery electrically connected to the braking mechanism, and a switch operable to apply power from the battery to the braking mechanism, wherein when power is applied via the switch, the electromagnetic force releases the brake and allows the spindle to rotate and when power is interrupted, the permanent magnet brake engages and prevents rotation of the spindle, thereby providing a pinless locking mechanism.

[0018] The spindle may have a square cross-section. The assembly may further include a spring mechanism configured to swivel the spindle to predefined positions upon release of the brake. For example, the spring mechanism may be configured to return the spindle to a neutral position after the brake is released. The neutral position may be a center position or it may be rotation to the oppose side. The swivel assembly may further include a sensor positioned on the wakeboard rack, the sensor being configured to detect an approaching obstacle and, upon detection, trigger one or more of an alarm or an automatic activation of the braking mechanism to prevent further swivel movement.

[0019] According to another aspect, a swivel assembly for watersports equipment on a watercraft is provided. The swivel assembly includes a bracket configured to secure the swivel assembly to a wakeboard rack or watersports equipment rack, a hub assembly secured to the bracket, the hub assembly including a housing base and a cover cap, a spindle housed within the hub assembly and rotatable about a central axis, roller bearings positioned between the spindle and the hub assembly to facilitate smooth rotation, and a permanent magnet brake bore-mounted concentrically around the spindle within the hub assembly, wherein the permanent magnet brake provides magnetic holding force when no electrical power is applied and releases when electrical current counteracts the magnetic force. The swivel assembly further includes a battery housed within the hub assembly and electrically connected to the permanent magnet brake, a push button switch mounted directly on the hub assembly and operable to apply power from the battery to release the permanent magnet brake, and a shaft lock mechanism having a lower holding torque than the permanent magnet brake, whereby the shaft lock provides breakaway protection by disengaging before the permanent magnet brake under impact forces. The permanent magnet brake may be configured with a magnetic holding force of sufficient magnitude to secure the spindle against rotational forces up to a first predetermined torque threshold, and wherein the shaft lock mechanism is configured with a mechanical holding torque lower than the magnetic holding force of the permanent magnet brake, such that application of rotational force exceeding the mechanical holding torque of the shaft lock mechanism causes the shaft lock mechanism to disengage before the permanent magnet brake releases.BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is a perspective view of one example of a swivel assembly.

[0021] FIG. 2 is a perspective of the swivel assembly of FIG. 1 with a cover cap in place.

[0022] FIG. 3 is an exploded view of the swivel assembly of FIG. 1.

[0023] FIG. 4 illustrates a different view of the swivel assembly to show the presence of the button switch.

[0024] FIG. 5 is a block diagram illustrating the swivel assembly where sensors and control logic are present.

[0025] FIG. 6 is a block diagram illustrating the swivel assembly attached to a watercraft and a water sports equipment rack where a spring mechanism is also present.DETAILED DESCRIPTION

[0026] FIG. 1 illustrates one example of a swivel assembly 10 for use with a wakeboard rack or other watersports equipment. The swivel assembly 10 shown in FIG. 1 is suitable for holding a wakeboard rack or other watersports equipment (not shown).

[0027] The swivel assembly 10 as shown includes a bracket 12 such as may be used for a wakeboard rack or other watersports equipment rack. A hub assembly 14 may be secured to the bracket 12 with fasteners such as bolts or other types of fasteners. The hub assembly 14 houses a spindle 16 which may be square in cross-section. The hub assembly 14 also houses a braking mechanism 18 which may be a permanent magnet brake or other braking mechanism. The hub assembly 14 may also house a battery, an electromagnet, and a switch for activating the electromagnet.

[0028] Where the braking mechanism 18 is a permanent magnet brake, the brake may engage when electrical power is off by using permanent magnets to apply braking force. When current is applied to the coil of the permanent magnet brake, the brake is released. The spindle 16 or shaft is present in the center of the hub assembly 14. The spindle 16 may rotate and interact with the braking mechanism. The braking mechanism may be a permanent magnet brake (PMB). The permanent magnet brake may use the magnetic force of permanent magnets to engage and stop rotation of the spindle 16. When current is applied (via the battery and switch), an opposing electromagnetic force may counteract the permanent magnets, thereby releasing the brake and allowing free rotation. When the current is cut off, the magnetic force may re-engage the brake thereby locking the spindle 16 in place.

[0029] The brake mechanism 18 may be bore mounted onto the spindle 16. Bore mounting allows for a compact, space-saving design where the brake mechanism is mounted concentrically with the spindle 16, providing consistent braking force around the entire spindle 16.

[0030] The permanent magnet brake is advantageous because if the power from the battery is interrupted then the brake will automatically engage due to the permanent magnets and therefore prevent unintentional movement of the wakeboard rack.

[0031] In addition, because the brakes rely upon magnetic forces rather than friction, the system may have a longer lifespan and require little or no maintenance, which would be advantageous over friction-based brake designs.

[0032] The permanent magnet brake allows for consistent braking force to be present as long as there is no power. The bore mounting allows for even distribution of braking force around the spindle.

[0033] The design incorporates a breakaway safety system to protect both equipment and obstacles in case of impact. The swivel assembly includes multiple components that can provide graduated breakaway protection. The permanent magnet brake 18 within the cylindrical hub assembly 14 provides the primary holding force through magnetic attraction. This magnetic holding force can be calibrated to maintain the swivel apparatus in position during normal use but allow rotation when subjected to impact forces that exceed the magnetic holding threshold.

[0034] The shaft lock 36 provides a secondary mechanical breakaway mechanism. The shaft lock 36 is positioned to interface with the spindle 16 and may include a friction-based or detent-based mechanism with a lower holding torque than the permanent magnet brake 18. This creates a two-stage breakaway system where the shaft lock 36 will disengage first under lower impact forces, followed by the permanent magnet brake 18 under higher forces, ensuring equipment can swing away from obstacles while maintaining secure positioning during normal operation.

[0035] Thus, the breakaway design provides that if the swivel apparatus is mounted to a wakeboard rack carrying a wakeboard and the wakeboard hits an object, the swivel apparatus will give way and rotate. This may be accomplished by providing sufficient magnetic force to maintain the swivel apparatus in position, but not so much magnetic force that mechanical forces associated with the wakeboard hitting an object cannot be overcome. The shaft lock 36 also acts as a breakaway mechanism. The shaft lock 36 may have a lower holding torque (based on mechanical specifications). Thus, with respect to holding torque, the brake has a higher holding torque than the shaft lock. Thus, the shaft lock will breakaway and slip before the brake does. However, any number of other specific implementations may be used.

[0036] Thus, the brake inside the hub allows for locking the spindle in place and provides a pinless swivel mechanism. Battery operated control is performed where a switch may activate an electromagnet to counteract the permanent magnets thereby releasing the brake and allowing rotation when needed.

[0037] FIG. 2 further illustrates the swivel assembly 10 shown in FIG. 1. In FIG. 2, a cover 42 is shown which caps a housing base 44 of the hub assembly 14.

[0038] FIG. 3 further illustrates an exploded view of the swivel assembly 10 shown in FIG. 1. A plurality of fastener such as bolt 28 may affix or secure the bracket 12 to the hub assembly 14. A battery 40 is shown which may be used to activate an electromagnet. A cover 38 is also shown. Roller bearings 20 are shown which assist in providing smooth swivel action. In some embodiments a solar interface may be provided to charge the battery 40. A push button 50 may be activated by a user to rotate the swivel assembly 10.

[0039] The roller bearings 20 are located between the rotating spindle 16 and the stationary hub assembly housing, facilitating smooth rotation about the central axis when the permanent magnet brake 18 is released. The roller bearings 20 support both radial loads from the attached watersports equipment and any axial loads that may be imposed during equipment swiveling. The bearing configuration allows the spindle 16 to rotate freely with minimal friction when the brake is released, while maintaining precise alignment and smooth operation over repeated use cycles. The bearings 20 are positioned to isolate the rotating spindle 16 from the stationary components of the hub assembly 14, ensuring that the braking forces from the permanent magnet brake 18 are effectively transmitted to control spindle rotation without interference from bearing friction

[0040] FIG. 4 illustrates another view of the swivel assembly 10 rotated to show the switch 50 on a bottom surface of the hub assembly 14. The switch 50 may be in the form of a pushbutton or other type of switch which may be readily activated by an operator.

[0041] FIG. 5 is a block diagram further illustrating operation of the swivel assembly with optional sensing. As shown in FIG. 5, a switch 50 may be used in order to power an electromagnet 60 by a battery 40 and to overcome the force associated with the permanent brake mechanism 62. In addition, the electromagnet 60 may also be controlled with control logic 64. The control logic 64 may include logic circuitry, a microcontroller, an integrated circuit, or other circuitry which may be used to activate the electromagnet 60 (including by controlling battery power supplied to the electromagnet) in response to sensor input from one or more sensors 66. For example, the one or more sensors may include ultrasonic sensors, optical sensors, or other types of sensors positioned to detect obstacles which may hit the wakeboard rack or other sports equipment rack, or the equipment stowed thereon. Therefore, upon detection by the control logic 64 of a signal indicative of such an obstacle or a threshold being reached, the control logic 64 may activate the electromagnet 60 to allow for rotation of the swivel assembly 10.

[0042] In some embodiments a solar interface 68 may be operatively connected to the battery 40 and the battery 40 may be rechargeable by energy received through the solar interface.

[0043] FIG. 6 is a block diagram showing the swivel assembly 10 operatively connected to a watercraft 80 such as a boat. The swivel assembly 10 may be operatively connected to a tower of the watercraft 80 or other structure of the watercraft 80. The swivel assembly 10 is operatively connected to the bracket 12 of the water sports equipment rack 82. In some embodiments, a spring mechanism 84 may be positioned or otherwise configured such that the swivel assembly does not only release but also swivels to each end when the brake is released or alternatively to a center position. In some embodiments, the spring mechanism may move an actuator 86 which will move a spring tension direction. Alternatively, a mechanism may move the spring to swing to an opposite side relative to when the brake is released.

[0044] The swivel assembly 10 may be provided with the watercraft 80 as a part of standard or optional equipment of the watercraft 80 at the time of purchase. Alternatively, watercraft may be retrofitted to include the swivel assembly and / or a combination of the swivel assembly and a water sports equipment rack or holder.

[0045] The pin less design offers significant operational and safety advantages in the marine watersports environment. Traditional mechanical pin-based swivel systems require manual insertion and removal of locking pins, which can be problematic when hands are wet, when the operator is wearing gloves, or when pins become corroded or lost overboard. In the dynamic environment of a moving boat, fumbling with small mechanical pins while trying to reposition equipment can be both frustrating and dangerous, particularly when the operator needs to maintain balance and situational awareness. The electromagnetic brake system eliminates these concerns by providing instant, push-button operation that can be activated with minimal dexterity requirements, allowing operators to quickly and safely reposition watersports equipment without the need to locate, handle, or secure mechanical fasteners.

[0046] The pin less design also enhances reliability and reduces maintenance requirements in the harsh marine environment. Mechanical pins and their corresponding receptacles are susceptible to corrosion, binding, and wear from saltwater exposure, requiring regular cleaning, lubrication, and eventual replacement. The electromagnetic brake system, being sealed within the hub assembly, is protected from direct saltwater contact and operates through magnetic forces rather than mechanical friction interfaces that would be exposed to the elements. This design approach reduces the number of moving parts exposed to the marine environment and eliminates the possibility of pin loss, which could render the entire swivel system inoperable. Additionally, the failsafe nature of the permanent magnet brake ensures that equipment remains securely locked even if electrical power is lost, providing a level of safety redundancy that mechanical pin systems cannot match.

[0047] The operator activates the swivel assembly by pressing the button to release the permanent magnet brake, allowing the equipment rack to rotate freely on spindle. Common usage scenarios include repositioning equipment from storage to access positions when preparing for watersports activities, rotating equipment back to compact storage positions after use, and adjusting equipment orientation during transit to avoid obstacles such as low bridges, narrow channels, or crowded marinas. The push-button operation enables the boat captain to remain at the helm while remotely controlling equipment positioning, maintaining vessel control while making necessary adjustments. During rotation, the operator can release button at any desired angle to immediately re-engage the permanent magnet brake and lock the equipment in that exact position. When present, a spring mechanism may provide assistance in returning equipment to predetermined positions, but the operator retains full control over the final positioning through button activation and release timing.

[0048] The swivel assembly provides infinite positioning capability throughout its rotational range, allowing equipment to be secured at any angle rather than being limited to fixed detent positions. This flexibility proves particularly valuable when operational requirements vary based on wind direction, sun angle, available deck space, passenger movement patterns, or proximity to other watercraft. For example, an operator might position a wakeboard rack at a 30-degree angle for optimal access from the port side, rotate it to 90 degrees for maximum clearance when docking, or stop it at 135 degrees to minimize wind resistance during high-speed transit. The permanent magnet brake provides consistent holding torque regardless of rotational position, ensuring equipment remains securely locked whether positioned at common angles or any intermediate position. This infinite positioning capability eliminates the constraints of traditional indexed systems and allows operators to optimize equipment placement for their specific operational needs and changing circumstances throughout their time on the water.

[0049] While the swivel assembly is primarily described in the context of supporting a wakeboard rack for watersports equipment, the innovative design of the pinless swivel mechanism and braking system offers broad applicability across a variety of other watercraft-related uses. Specifically, the device can be employed in the secure mounting and positioning of various other types of watersport equipment, such as waterski racks, surfboard holders, or even fishing equipment. In the context of fishing, for example, the swivel mechanism may be configured to support a rod holder or tackle rack, allowing for easy rotational access, and locking in place without the need for manual pins. The braking mechanism, which may rely on a permanent magnet brake for failsafe engagement, is especially useful for applications that require hands-free operation in dynamic environments, such as adjusting or securing equipment on a moving boat. Additionally, the compact and robust design of the hub assembly allows it to be mounted in confined or challenging spaces on a boat, making it versatile enough for various watercraft setups. The device's sensor capabilities, which allow for obstacle detection, may also be advantageous in fishing applications by alerting the user to potential impacts or by automatically repositioning equipment to avoid hazards. Therefore, this swivel assembly has applications beyond wakeboarding and can serve multiple functions across different watercraft and watersports equipment scenarios.

[0050] Therefore, a swivel assembly has been shown and described. Although various embodiments are shown and discussed throughout, it is to be understood that numerous options, variations, and alternatives fall within the spirit and scope of the present disclosure.

Examples

Embodiment Construction

[0026]FIG. 1 illustrates one example of a swivel assembly 10 for use with a wakeboard rack or other watersports equipment. The swivel assembly 10 shown in FIG. 1 is suitable for holding a wakeboard rack or other watersports equipment (not shown).

[0027]The swivel assembly 10 as shown includes a bracket 12 such as may be used for a wakeboard rack or other watersports equipment rack. A hub assembly 14 may be secured to the bracket 12 with fasteners such as bolts or other types of fasteners. The hub assembly 14 houses a spindle 16 which may be square in cross-section. The hub assembly 14 also houses a braking mechanism 18 which may be a permanent magnet brake or other braking mechanism. The hub assembly 14 may also house a battery, an electromagnet, and a switch for activating the electromagnet.

[0028]Where the braking mechanism 18 is a permanent magnet brake, the brake may engage when electrical power is off by using permanent magnets to apply braking force. When current is applied to t...

RELATED APPLICATIONS

[0001] The present application claims priority to U.S. Provisional Patent Application No. 63 / 700,112, filed Sep. 27, 2024, entitled “SWIVEL ASSEMBLY WITH BRAKING FOR WATERSPORTS EQUIPMENT” hereby incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention relates to boating. More particularly, but not exclusively, the present disclosure relates to a swivel rack with braking for watersports equipment which may be affixed to a boat.BACKGROUND OF THE ART

[0003] With the increase in the number and type of water sports equipment and accessories brought aboard and stowed on a boat, boaters continue to look for viable alternatives to stow water sports equipment and accessories in such a way that they are conveniently and readily accessible yet still capable of being positioned out of the way to not hinder a boater's safe operation of, care for and ultimate enjoyment of the boat. Current equipment racks fail to adequately provide a solution that addresses the safety of the boat and its operation, the occupants within and around the boat, the surroundings of the boat both within and out of the water, and the water sports equipment stowed aboard the boat. Therefore, what is needed is a swiveling watersports equipment rack that addresses each of the shortcomings with current water sports equipment racks.SUMMARY

[0004] Therefore, it is a primary object, feature, or advantage of the present invention to improve over the state of the art.

[0005] It is a further object, feature, or advantage of the present invention to provide push-button automation to a swiveling watersports equipment rack.

[0006] It is a still further object, feature, or advantage of the present invention to provide the captain of a boat with the ability to automatically operate one or more swiveling watersports equipment racks without having to leave the helm thereby increasing the safe operation of the boat.

[0007] It is a still further object, feature, or advantage to improve safety of water sports equipment racks.

[0008] Another object, feature, or advantage is elimination of the need for a mechanical pin locking mechanism to lock or unlock a swivel in place.

[0009] Yet another object, feature, or advantage is to use the magnetic force of permanent magnets for a failsafe locking system.

[0010] Another object, feature, or advantage is to provide a pinless swivel design which is operated by electromagnetic brake or brake mechanism and released by a button from a battery.

[0011] Yet another object, feature, or advantage is to provide a breakaway protection so that if a wakeboard or other sports equipment hits an obstacle, the swivel apparatus may swive.

[0012] A still further object, feature, or advantage is to provide a battery-powered electromagnetic release.

[0013] Another object, feature, or advantage is to provide a spring mechanism to automatically return the spindle of a swivel assembly to predefined positions.

[0014] Yet another object, feature, or advantage is to incorporate sensors that detect obstacles and either alert the user or allow for rotation of the swivel assembly.

[0015] One or more of these and or other objects, features, or advantages will become apparent from the description that follows. It is to be understood that no single embodiment need meet or provide all or any of these objects, features, or advantages as different embodiments may have different objects, features, or advantages.

[0016] According to one aspect, a swivel assembly for use with a wakeboard rack or other watersports equipment is provided. The swivel assembly includes a bracket for securing the swivel assembly to a wakeboard rack or watersports equipment rack, a hub assembly mounted to the bracket, the hub assembly includes a spindle housed within the hub assembly, the spindle being rotatable about a central axis, a braking mechanism within the hub assembly, and a switch, wherein the switch is manually operable to allow a user to control engagement and / or release of the braking mechanism.

[0017] According to another aspect, a swivel assembly for use with a wakeboard rack or other watersports equipment is provided. The swivel assembly includes a bracket for securing the swivel assembly to a wakeboard rack or watersports equipment rack, a hub assembly mounted to the bracket, the hub assembly including a spindle housed within the hub assembly, the spindle being rotatable about a central axis, a braking mechanism within the hub assembly, the braking mechanism comprising a permanent magnet brake, wherein the permanent magnet brake is configured to engage to stop rotation of the spindle by applying magnetic force from one or more permanent magnets and be released by applying an opposing electromagnetic force that counteracts the permanent magnet force, allowing free rotation of the spindle and a bore mounting wherein the braking mechanism is concentrically mounted around the spindle, allowing for even distribution of braking force around the spindle, a battery electrically connected to the braking mechanism, and a switch operable to apply power from the battery to the braking mechanism, wherein when power is applied via the switch, the electromagnetic force releases the brake and allows the spindle to rotate and when power is interrupted, the permanent magnet brake engages and prevents rotation of the spindle, thereby providing a pinless locking mechanism.

[0018] The spindle may have a square cross-section. The assembly may further include a spring mechanism configured to swivel the spindle to predefined positions upon release of the brake. For example, the spring mechanism may be configured to return the spindle to a neutral position after the brake is released. The neutral position may be a center position or it may be rotation to the oppose side. The swivel assembly may further include a sensor positioned on the wakeboard rack, the sensor being configured to detect an approaching obstacle and, upon detection, trigger one or more of an alarm or an automatic activation of the braking mechanism to prevent further swivel movement.

[0019] According to another aspect, a swivel assembly for watersports equipment on a watercraft is provided. The swivel assembly includes a bracket configured to secure the swivel assembly to a wakeboard rack or watersports equipment rack, a hub assembly secured to the bracket, the hub assembly including a housing base and a cover cap, a spindle housed within the hub assembly and rotatable about a central axis, roller bearings positioned between the spindle and the hub assembly to facilitate smooth rotation, and a permanent magnet brake bore-mounted concentrically around the spindle within the hub assembly, wherein the permanent magnet brake provides magnetic holding force when no electrical power is applied and releases when electrical current counteracts the magnetic force. The swivel assembly further includes a battery housed within the hub assembly and electrically connected to the permanent magnet brake, a push button switch mounted directly on the hub assembly and operable to apply power from the battery to release the permanent magnet brake, and a shaft lock mechanism having a lower holding torque than the permanent magnet brake, whereby the shaft lock provides breakaway protection by disengaging before the permanent magnet brake under impact forces. The permanent magnet brake may be configured with a magnetic holding force of sufficient magnitude to secure the spindle against rotational forces up to a first predetermined torque threshold, and wherein the shaft lock mechanism is configured with a mechanical holding torque lower than the magnetic holding force of the permanent magnet brake, such that application of rotational force exceeding the mechanical holding torque of the shaft lock mechanism causes the shaft lock mechanism to disengage before the permanent magnet brake releases.BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is a perspective view of one example of a swivel assembly.

[0021] FIG. 2 is a perspective of the swivel assembly of FIG. 1 with a cover cap in place.

[0022] FIG. 3 is an exploded view of the swivel assembly of FIG. 1.

[0023] FIG. 4 illustrates a different view of the swivel assembly to show the presence of the button switch.

[0024] FIG. 5 is a block diagram illustrating the swivel assembly where sensors and control logic are present.

[0025] FIG. 6 is a block diagram illustrating the swivel assembly attached to a watercraft and a water sports equipment rack where a spring mechanism is also present.DETAILED DESCRIPTION

[0026] FIG. 1 illustrates one example of a swivel assembly 10 for use with a wakeboard rack or other watersports equipment. The swivel assembly 10 shown in FIG. 1 is suitable for holding a wakeboard rack or other watersports equipment (not shown).

[0027] The swivel assembly 10 as shown includes a bracket 12 such as may be used for a wakeboard rack or other watersports equipment rack. A hub assembly 14 may be secured to the bracket 12 with fasteners such as bolts or other types of fasteners. The hub assembly 14 houses a spindle 16 which may be square in cross-section. The hub assembly 14 also houses a braking mechanism 18 which may be a permanent magnet brake or other braking mechanism. The hub assembly 14 may also house a battery, an electromagnet, and a switch for activating the electromagnet.

[0028] Where the braking mechanism 18 is a permanent magnet brake, the brake may engage when electrical power is off by using permanent magnets to apply braking force. When current is applied to the coil of the permanent magnet brake, the brake is released. The spindle 16 or shaft is present in the center of the hub assembly 14. The spindle 16 may rotate and interact with the braking mechanism. The braking mechanism may be a permanent magnet brake (PMB). The permanent magnet brake may use the magnetic force of permanent magnets to engage and stop rotation of the spindle 16. When current is applied (via the battery and switch), an opposing electromagnetic force may counteract the permanent magnets, thereby releasing the brake and allowing free rotation. When the current is cut off, the magnetic force may re-engage the brake thereby locking the spindle 16 in place.

[0029] The brake mechanism 18 may be bore mounted onto the spindle 16. Bore mounting allows for a compact, space-saving design where the brake mechanism is mounted concentrically with the spindle 16, providing consistent braking force around the entire spindle 16.

[0030] The permanent magnet brake is advantageous because if the power from the battery is interrupted then the brake will automatically engage due to the permanent magnets and therefore prevent unintentional movement of the wakeboard rack.

[0031] In addition, because the brakes rely upon magnetic forces rather than friction, the system may have a longer lifespan and require little or no maintenance, which would be advantageous over friction-based brake designs.

[0032] The permanent magnet brake allows for consistent braking force to be present as long as there is no power. The bore mounting allows for even distribution of braking force around the spindle.

[0033] The design incorporates a breakaway safety system to protect both equipment and obstacles in case of impact. The swivel assembly includes multiple components that can provide graduated breakaway protection. The permanent magnet brake 18 within the cylindrical hub assembly 14 provides the primary holding force through magnetic attraction. This magnetic holding force can be calibrated to maintain the swivel apparatus in position during normal use but allow rotation when subjected to impact forces that exceed the magnetic holding threshold.

[0034] The shaft lock 36 provides a secondary mechanical breakaway mechanism. The shaft lock 36 is positioned to interface with the spindle 16 and may include a friction-based or detent-based mechanism with a lower holding torque than the permanent magnet brake 18. This creates a two-stage breakaway system where the shaft lock 36 will disengage first under lower impact forces, followed by the permanent magnet brake 18 under higher forces, ensuring equipment can swing away from obstacles while maintaining secure positioning during normal operation.

[0035] Thus, the breakaway design provides that if the swivel apparatus is mounted to a wakeboard rack carrying a wakeboard and the wakeboard hits an object, the swivel apparatus will give way and rotate. This may be accomplished by providing sufficient magnetic force to maintain the swivel apparatus in position, but not so much magnetic force that mechanical forces associated with the wakeboard hitting an object cannot be overcome. The shaft lock 36 also acts as a breakaway mechanism. The shaft lock 36 may have a lower holding torque (based on mechanical specifications). Thus, with respect to holding torque, the brake has a higher holding torque than the shaft lock. Thus, the shaft lock will breakaway and slip before the brake does. However, any number of other specific implementations may be used.

[0036] Thus, the brake inside the hub allows for locking the spindle in place and provides a pinless swivel mechanism. Battery operated control is performed where a switch may activate an electromagnet to counteract the permanent magnets thereby releasing the brake and allowing rotation when needed.

[0037] FIG. 2 further illustrates the swivel assembly 10 shown in FIG. 1. In FIG. 2, a cover 42 is shown which caps a housing base 44 of the hub assembly 14.

[0038] FIG. 3 further illustrates an exploded view of the swivel assembly 10 shown in FIG. 1. A plurality of fastener such as bolt 28 may affix or secure the bracket 12 to the hub assembly 14. A battery 40 is shown which may be used to activate an electromagnet. A cover 38 is also shown. Roller bearings 20 are shown which assist in providing smooth swivel action. In some embodiments a solar interface may be provided to charge the battery 40. A push button 50 may be activated by a user to rotate the swivel assembly 10.

[0039] The roller bearings 20 are located between the rotating spindle 16 and the stationary hub assembly housing, facilitating smooth rotation about the central axis when the permanent magnet brake 18 is released. The roller bearings 20 support both radial loads from the attached watersports equipment and any axial loads that may be imposed during equipment swiveling. The bearing configuration allows the spindle 16 to rotate freely with minimal friction when the brake is released, while maintaining precise alignment and smooth operation over repeated use cycles. The bearings 20 are positioned to isolate the rotating spindle 16 from the stationary components of the hub assembly 14, ensuring that the braking forces from the permanent magnet brake 18 are effectively transmitted to control spindle rotation without interference from bearing friction

[0040] FIG. 4 illustrates another view of the swivel assembly 10 rotated to show the switch 50 on a bottom surface of the hub assembly 14. The switch 50 may be in the form of a pushbutton or other type of switch which may be readily activated by an operator.

[0041] FIG. 5 is a block diagram further illustrating operation of the swivel assembly with optional sensing. As shown in FIG. 5, a switch 50 may be used in order to power an electromagnet 60 by a battery 40 and to overcome the force associated with the permanent brake mechanism 62. In addition, the electromagnet 60 may also be controlled with control logic 64. The control logic 64 may include logic circuitry, a microcontroller, an integrated circuit, or other circuitry which may be used to activate the electromagnet 60 (including by controlling battery power supplied to the electromagnet) in response to sensor input from one or more sensors 66. For example, the one or more sensors may include ultrasonic sensors, optical sensors, or other types of sensors positioned to detect obstacles which may hit the wakeboard rack or other sports equipment rack, or the equipment stowed thereon. Therefore, upon detection by the control logic 64 of a signal indicative of such an obstacle or a threshold being reached, the control logic 64 may activate the electromagnet 60 to allow for rotation of the swivel assembly 10.

[0042] In some embodiments a solar interface 68 may be operatively connected to the battery 40 and the battery 40 may be rechargeable by energy received through the solar interface.

[0043] FIG. 6 is a block diagram showing the swivel assembly 10 operatively connected to a watercraft 80 such as a boat. The swivel assembly 10 may be operatively connected to a tower of the watercraft 80 or other structure of the watercraft 80. The swivel assembly 10 is operatively connected to the bracket 12 of the water sports equipment rack 82. In some embodiments, a spring mechanism 84 may be positioned or otherwise configured such that the swivel assembly does not only release but also swivels to each end when the brake is released or alternatively to a center position. In some embodiments, the spring mechanism may move an actuator 86 which will move a spring tension direction. Alternatively, a mechanism may move the spring to swing to an opposite side relative to when the brake is released.

[0044] The swivel assembly 10 may be provided with the watercraft 80 as a part of standard or optional equipment of the watercraft 80 at the time of purchase. Alternatively, watercraft may be retrofitted to include the swivel assembly and / or a combination of the swivel assembly and a water sports equipment rack or holder.

[0045] The pin less design offers significant operational and safety advantages in the marine watersports environment. Traditional mechanical pin-based swivel systems require manual insertion and removal of locking pins, which can be problematic when hands are wet, when the operator is wearing gloves, or when pins become corroded or lost overboard. In the dynamic environment of a moving boat, fumbling with small mechanical pins while trying to reposition equipment can be both frustrating and dangerous, particularly when the operator needs to maintain balance and situational awareness. The electromagnetic brake system eliminates these concerns by providing instant, push-button operation that can be activated with minimal dexterity requirements, allowing operators to quickly and safely reposition watersports equipment without the need to locate, handle, or secure mechanical fasteners.

[0046] The pin less design also enhances reliability and reduces maintenance requirements in the harsh marine environment. Mechanical pins and their corresponding receptacles are susceptible to corrosion, binding, and wear from saltwater exposure, requiring regular cleaning, lubrication, and eventual replacement. The electromagnetic brake system, being sealed within the hub assembly, is protected from direct saltwater contact and operates through magnetic forces rather than mechanical friction interfaces that would be exposed to the elements. This design approach reduces the number of moving parts exposed to the marine environment and eliminates the possibility of pin loss, which could render the entire swivel system inoperable. Additionally, the failsafe nature of the permanent magnet brake ensures that equipment remains securely locked even if electrical power is lost, providing a level of safety redundancy that mechanical pin systems cannot match.

[0047] The operator activates the swivel assembly by pressing the button to release the permanent magnet brake, allowing the equipment rack to rotate freely on spindle. Common usage scenarios include repositioning equipment from storage to access positions when preparing for watersports activities, rotating equipment back to compact storage positions after use, and adjusting equipment orientation during transit to avoid obstacles such as low bridges, narrow channels, or crowded marinas. The push-button operation enables the boat captain to remain at the helm while remotely controlling equipment positioning, maintaining vessel control while making necessary adjustments. During rotation, the operator can release button at any desired angle to immediately re-engage the permanent magnet brake and lock the equipment in that exact position. When present, a spring mechanism may provide assistance in returning equipment to predetermined positions, but the operator retains full control over the final positioning through button activation and release timing.

[0048] The swivel assembly provides infinite positioning capability throughout its rotational range, allowing equipment to be secured at any angle rather than being limited to fixed detent positions. This flexibility proves particularly valuable when operational requirements vary based on wind direction, sun angle, available deck space, passenger movement patterns, or proximity to other watercraft. For example, an operator might position a wakeboard rack at a 30-degree angle for optimal access from the port side, rotate it to 90 degrees for maximum clearance when docking, or stop it at 135 degrees to minimize wind resistance during high-speed transit. The permanent magnet brake provides consistent holding torque regardless of rotational position, ensuring equipment remains securely locked whether positioned at common angles or any intermediate position. This infinite positioning capability eliminates the constraints of traditional indexed systems and allows operators to optimize equipment placement for their specific operational needs and changing circumstances throughout their time on the water.

[0049] While the swivel assembly is primarily described in the context of supporting a wakeboard rack for watersports equipment, the innovative design of the pinless swivel mechanism and braking system offers broad applicability across a variety of other watercraft-related uses. Specifically, the device can be employed in the secure mounting and positioning of various other types of watersport equipment, such as waterski racks, surfboard holders, or even fishing equipment. In the context of fishing, for example, the swivel mechanism may be configured to support a rod holder or tackle rack, allowing for easy rotational access, and locking in place without the need for manual pins. The braking mechanism, which may rely on a permanent magnet brake for failsafe engagement, is especially useful for applications that require hands-free operation in dynamic environments, such as adjusting or securing equipment on a moving boat. Additionally, the compact and robust design of the hub assembly allows it to be mounted in confined or challenging spaces on a boat, making it versatile enough for various watercraft setups. The device's sensor capabilities, which allow for obstacle detection, may also be advantageous in fishing applications by alerting the user to potential impacts or by automatically repositioning equipment to avoid hazards. Therefore, this swivel assembly has applications beyond wakeboarding and can serve multiple functions across different watercraft and watersports equipment scenarios.

[0050] Therefore, a swivel assembly has been shown and described. Although various embodiments are shown and discussed throughout, it is to be understood that numerous options, variations, and alternatives fall within the spirit and scope of the present disclosure.

Examples

Embodiment Construction

[0026]FIG. 1 illustrates one example of a swivel assembly 10 for use with a wakeboard rack or other watersports equipment. The swivel assembly 10 shown in FIG. 1 is suitable for holding a wakeboard rack or other watersports equipment (not shown).

[0027]The swivel assembly 10 as shown includes a bracket 12 such as may be used for a wakeboard rack or other watersports equipment rack. A hub assembly 14 may be secured to the bracket 12 with fasteners such as bolts or other types of fasteners. The hub assembly 14 houses a spindle 16 which may be square in cross-section. The hub assembly 14 also houses a braking mechanism 18 which may be a permanent magnet brake or other braking mechanism. The hub assembly 14 may also house a battery, an electromagnet, and a switch for activating the electromagnet.

[0028]Where the braking mechanism 18 is a permanent magnet brake, the brake may engage when electrical power is off by using permanent magnets to apply braking force. When current is applied to t...

Claims

1. A swivel assembly for use with a wakeboard rack or other watersports equipment, comprising:a bracket for securing the swivel assembly to a wakeboard rack or watersports equipment rack;a hub assembly mounted to the bracket, the hub assembly comprising:a spindle housed within the hub assembly, the spindle being rotatable about a central axis;a braking mechanism within the hub assembly, the braking mechanism comprising a permanent magnet brake, wherein the permanent magnet brake is configured to:engage to stop rotation of the spindle by applying magnetic force from one or more permanent magnets and be released by applying an opposing electromagnetic force that counteracts the magnetic force from the one or more permanent magnets, allowing free rotation of the spindle;a bore mounting wherein the braking mechanism is concentrically mounted around the spindle, allowing for even distribution of braking force around the spindle;a battery electrically connected to the braking mechanism;a switch operable to apply power from the battery to the braking mechanism, wherein:when power is applied via the switch, the electromagnetic force releases the brake and allows the spindle to rotate; andwhen power is interrupted, the permanent magnet brake engages and prevents rotation of the spindle, thereby providing a pinless locking mechanism.

2. The swivel assembly of claim 1, wherein the spindle has a square cross-section.

3. The swivel assembly of claim 1, wherein the assembly further comprises a spring mechanism configured to swivel the spindle to predefined positions upon release of the brake.

4. The swivel assembly of claim 3, wherein the spring mechanism is configured to return the spindle to a neutral position after the brake is released.

5. The swivel assembly of claim 1, further comprising a sensor positioned on the wakeboard rack, the sensor being configured to detect an approaching obstacle and, upon detection, trigger one or more of:an alarm; andautomatic activation of the braking mechanism to prevent further swivel movement.

6. The swivel assembly of claim 5, wherein the sensor is configured to trigger automatic rotation of the spindle to a safe position upon detection of an approaching obstacle.

7. The swivel assembly of claim 5, wherein the sensor is an ultrasonic sensor capable of detecting objects within a predetermined distance.

8. The swivel assembly of claim 1, wherein the braking mechanism is configured to automatically engage in event of a power failure from the battery, thereby preventing unintentional movement of the wakeboard rack.

9. The swivel assembly of claim 1, wherein the hub assembly provides a pinless swivel mechanism, eliminating need for mechanical pin engagement to lock the wakeboard rack in place.

10. The swivel assembly of claim 1, wherein the switch is manually operable to allow a user to control engagement and release of the braking mechanism based on desired rotation of the spindle.

11. A watercraft comprising the swivel assembly of claim 1.

12. A swivel assembly for use with a wakeboard rack or other watersports equipment, comprising:a bracket for securing the swivel assembly to a wakeboard rack or watersports equipment rack;a hub assembly mounted to the bracket, the hub assembly comprising:a spindle housed within the hub assembly, the spindle being rotatable about a central axis; anda braking mechanism within the hub assembly; anda switch, wherein the switch is manually operable to allow a user to control engagement and / or release of the braking mechanism.

13. The swivel assembly of claim 12 wherein the braking mechanism comprises a permanent magnet brake, wherein the permanent magnet brake is configured to engage to stop rotation of the spindle by applying magnetic force from one or more permanent magnets.

14. A system comprising a watersports equipment rack operatively connected to the swivel assembly of claim 12.

15. The system of claim 14 further comprising a spring mechanism operatively connected to the swivel assembly.

16. The system of claim 15 wherein the spring mechanism is operatively connected to an actuator.

17. The swivel assembly of claim 12 wherein the braking mechanism comprises an electromagnet operatively connected to a battery when the switch is engaged.

18. The swivel assembly of claim 17 further comprising a solar interface operatively connected to the battery.

19. A swivel assembly for watersports equipment on a watercraft, comprising:a bracket configured to secure the swivel assembly to a wakeboard rack or watersports equipment rack;a hub assembly secured to the bracket, the hub assembly including a housing base and a cover cap;a spindle housed within the hub assembly and rotatable about a central axis;roller bearings positioned between the spindle and the hub assembly to facilitate smooth rotation;a permanent magnet brake bore-mounted concentrically around the spindle within the hub assembly, wherein the permanent magnet brake provides magnetic holding force when no electrical power is applied and releases when electrical current counteracts the magnetic holding force;a battery housed within the hub assembly and electrically connected to the permanent magnet brake;a push button switch mounted directly on the hub assembly and operable to apply power from the battery to release the permanent magnet brake; anda shaft lock mechanism having a lower holding torque than the permanent magnet brake, whereby the shaft lock mechanism provides breakaway protection by disengaging before the permanent magnet brake under impact forces.

20. The swivel assembly of claim 19, wherein the permanent magnet brake is configured with a magnetic holding force of sufficient magnitude to secure the spindle against rotational forces up to a first predetermined torque threshold, and wherein the shaft lock mechanism is configured with a mechanical holding torque lower than the magnetic holding force of the permanent magnet brake, such that application of rotational force exceeding the mechanical holding torque of the shaft lock mechanism causes the shaft lock mechanism to disengage before the permanent magnet brake releases.

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