Magnetic and mechanical buckle, fit systems, and line tensioning systems

Abstract

A mechanical and magnetic closure device that offers improved ease of use compared to the prior art is described herein. A first mating part with a magnet and a cavity arranged to receive a second mating part with a corresponding magnet from an overlapping position to form a mechanically secured closure that is guided and further supported by magnetic attraction.

Description

MAGNETIC AND MECHANICAL BUCKLE, FIT SYSTEMS, AND LINE TENSIONING SYSTEMS BACKGROUND 1. Field

[0001] The present disclosure relates to magnetic and mechanical buckles or closure devices for use with various articles, fit systems, and line tensioning systems. 2. State of the Art

[0002] How a wearable article opens and closes around the body, how it can be adjusted, as well as how well a device fits the body is highly important in the daily function of humans or even for animals. For example, wearable articles and devices can include, by way of example, garments, shoes, backpacks, sporting gear, wearable protective devices, sporting braces, orthoses, and / or prostheses. Several factors can be weighed in how appropriate or satisfactory a wearable article or device fits the body, including whether the fit system is put on and taken off, fit with the appropriate amount of tension, and easily adjusted for comfort during use. These factors can be considered determinants in how appropriate or effective the fit of the article or device is on the body and they are directly related to how the article or device is secured or fastened to the body. Generally, the wearable articles or devices are secured to the body by tightening around the body. The mechanisms and associated methods of how articles or devices are secured to the body are hereby referred to as fit systems.

[0003] Fit systems and related devices and methods generally are operably attached to one or more flexible elongate members or tension lines (such as straps, cables, laces, etc.) with one or more attachment points or interfaces to the article or device. The attachment points or interfaces may decrease in distance relative to one another or relative to the fit system, which can be referred to as contraction or shortening. Such contraction can involve decreasing the effective length of the flexible elongate member(s) of the fit system and possibly increasing the amount of tension (or tensile loading) experienced by the flexible elongate member(s) of the fit system. Such contraction can occur when tightening or closing or other movement of the article or device with respect to the body. Alternatively, the attachment points orinterfaces may increase in distance to one another or relative to the fit system, which can be referred to as extension or lengthening. Such extension can involve increasing the effective length of the flexible elongate member(s) of the fit system and possibly decreasing the amount of tension (or tensile loading) experienced by the flexible elongate member(s) of the fit system. Such extension can occur when loosening or other movement of the article or device with respect to the body.

[0004] The determinants of the appropriateness and effectiveness of a fit system may be associated with design elements of the fit system including: the mechanisms and associated methods for contraction and extension, the inherent mechanical advantage of a given fit system, mechanical reliability of the overall system and toughness of individual components, maximum load and tension, distance between the attachment points or interfaces in the maximum contracted and maximum extended positions, profile height of the fit system, width and length of the fit system, rigidity of the fit system and its components, whether the contraction and extension is incremental or analog in nature, how smooth or abrupt is the contraction and extension, attachment requirements of the fit system, system weight and suspension forces provided by the fit system, flexibility or ability for the fit system to contour around the body, and pressure distribution of the fit system.

[0005] The mechanical reliability and toughness of the fit system relates to the materials utilized by parts therein, geometry, dimensions, and manufacturing methods. Specifically, the overall fit system may only be as strong as its weakest link. Some parts can fail and cause catastrophic failure while others may not. Failure of some fit systems could lead to the users getting trapped or stuck in their device or with their device. In other situations, the user may be highly dependent on the device. Failure of a fit system could potentially even contribute to a fatal accident. Reliability is therefore extremely important, especially in certain circumstances and applications.

[0006] Maximum tension of a fit system is typically dependent on the maximum tensile loading of the flexible elongate member(s) of the fit system. In many applications, the maximum tensile loading relates directly to the maximum input force multiplied by the mechanical advantage. The input force is most often the manual force of the user but may be the force imposed by another person or an electronic orother automated system. The input transferred to the fit system members via the mechanisms within the fit system which may or may not include mechanical advantage. The tensile loading of the flexible elongate member(s) of the fit system can transfer load or force onto the user’s body. Generally, the load is directed into the body or, in other words, towards the center of the body’s long axis or the long axis of a limb but may also be slightly oblique to the direction directly towards the long axis. If such loading forces are directed in an angle that is too oblique to the long axis, they will likely cause the device to shift proximally or distally on the body unless counterbalanced by a geometric feature of the body or other feature. The amount of load transferred onto the body can also be related to other factors. For example, the amount of body exposure from the device seen by the fit system will affect how much of the tension force is transferred directly onto the body or into the device.

[0007] The loading directed into the body can apply pressure to the body. Generally, the pressure distribution applied to the body is dependent on the amount of loading applied by the fit system to the body divided by the surface area of the applied loading. Pressure distribution of the fit system is explained in further detail below. In many cases, the fit system can transfer some tension forces onto the device (for example, by the device changing shape or reducing in volume), thereby reducing load applied to the body. The amount of desired load or optimal load delivered onto the body by the fit system may differ per application, as the body changes, during activity changes, within certain movements, in certain positions, and / or over time. Although the optimal loads may vary per application and other variables, optimal performance is generally seen within a definitive range. The humans and animals generally prefer a similar range of load and associated pressure onto the body and within specific segments of the body. Beyond the level of preference, loads and pressures that are beyond a recommended range may cause a reduction in blood flow and / or other damage, discomfort, or pain. Conversely, if loads and pressures are too low, the device may fall down on the body or be loose on the body which may lead to damage, discomfort, or pain.

[0008] The maximum effective length of the flexible elongate members of the fit system can be referred to as the travel within a fit system. Travel within a fit systemmay relate to the amount of space for a flexible elongate member to collect into the fit system or the distance of linear teeth in a ratchet ladder. The available amount of travel within a fit system may limit the amount of load that a fit system can deliver onto the body in that the maximum travel may be reached before the user gets to their desired amount of load onto the body. Travel may also directly affect device sizing in that a fit system with greater travel is likely to accommodate a wider range of body sizes and vice versa. These factors might suggest that fit systems should always include a maximum or large amount of travel. However, while increased travel may be beneficial, it often has a negative or inverse correlation on other determinants of the fit system such as the size, profile, weight, and other factors discussed below.

[0009] The profile height of the fit system is extremely important to product developers and end users. Profile height refers to the distance that the fit system protrudes away from the body or, in other words, how much it sticks out. Developers and end users have a strong preference or requirement for the fit system to have a low-profile for the aesthetic look and finish quality that they demand. Moreover, the profile height also plays a role in function and safety. If a fit system has a large profile height it will have a higher risk of catching on things or it may make it difficult or impossible to wear clothing over the fit system. Beyond these undesirable attributes, a fit system with a large profile can be a significant risk of injury due to the fact that if the user falls or bumps into something, the bulk of the fit system can be pushed into the body and can cause injury.

[0010] Similar to the profile height, the width and length of a fit system may also be important for applications of use. Width or length can limit applicability in some cases that may have a limited surface area of application. For example, shoes have a limited surface area that is acceptable for a fit system. Fit systems may be limited in their applicability to shoes if their width or length is over 45 mm or even 35 mm in some cases. However, beyond surface area limitations, larger width and length are far more acceptable for most applications fitting the body as compared to profile height.

[0011] In some cases, fit requirements can be very specific and a distance of one millimeter can be the difference between too loose and just right. In these cases, ananalog fit system that can adjust in a and controlled manner may be ideal. In other applications, incremental tightening provides the appropriate amount of fidelity while enabling for a wider array of fit system mechanisms. Incremental systems are often faster than analog systems that provide control at a micro level. All incremental systems are not created equal. Some incremental fit systems may offer small increments like 1.5 millimeters whereas others may offer large steps of 6 millimeters. Requirements for the distance between increments are specific per application but in general the range is between 0.5 mm and 8 mm. Regardless of whether a system is incremental or analog, the mechanism or method of use may provide a smooth transition as it is used to adjust fit or it may provide an abrupt experience. In general, the experience is understandably more favorable if it is more controlled and smoother. However, some cases require fast release or removal of a device.

[0012] Various buckles, closure devices, fasteners, mechanical devices, mechanical and magnetic devices, or other connecting hardware and associated methods have been proposed to close, secure, fasten, and / or adjust articles. Conventional side- release buckles and alternative proposed solutions have not adequately solved for ease of use while maintaining functional requirements and ease of manufacturing.

[0013] Conventional side-release buckles that have been described in the prior art typically include a female or socket part of the buckle and a male or plug part of the socket that has legs that are pushed into the socket where they are retained until manual release. The socket part of these conventional side-release buckles usually have two broad bodies or surfaces along the x-y plane that are separated with a space and connected together to form a chamber between the two broad surfaces. These conventional side-release buckles are generally relatively easy for most users to release with one hand using a pinch grip motion. However, engagement of conventional side-release buckles typically requires two hands. One hand is required on the male or plug part of the buckle while the other hand is required on the female or socket part of the buckle to align the two parts together such that the legs of the male part can be inserted into the chamber or socket of the female part. Aligning the male part to insert into the female part requires dexterity that some users do not have.It also may require a line of sight a burden for all users, even those with high dexterity. Moreover, engagement requires pushing the legs of the male part or plug past the retaining features of the female part or socket. Pushing the legs into engagement with the socket inherently requires force or strength that some users do not have. These attributes combine to reduce ease of use and reduce speed of engagement for all users and in particular for those that have strength or dexterity challenges.

[0014] Despite including opportunities for improvement, reliable function, relative ease of use improvement compared to some buckles, and ease of manufacturing has led to conventional side-release buckles being extremely common and widely used in virtually all industries. As a result, a side-release mechanism to disengage an article is intuitive for users.

[0015] Alternative side-release buckles have been described and offered. However, many of these alternative side-release buckles still require the user to push the retaining features legs of the male or plug part past the retaining features of the socket or female part. As such, engagement requires two hands and / or a two-step process. For example, in US patent 8,914,951 (Zedel SAS) an alternative side-release buckle is described to include a magnet to improve ease of engagement. However, this magnetic and mechanical buckle or closure device still requires pushing the retaining features legs of the male or plug part past the retaining features of the socket or female part. In US patent 9,907,368 (Woojin Plastic Co Ltd), the magnetic and mechanical buckle described utilizes magnetic attraction to aid in aligning the plug and socket but requires a second step of pushing the retaining features legs of the male or plug part past the retaining features of the socket or female part.

[0016] Several locking side-release buckles have been described. These devices aim to offer increased security within the system, but these security features do not make the device easier to use, and in many cases, make it harder for the user to operate.

[0017] In US patent 11,666,123 (Lian Yang Plastics Co, LTD), buckles are described that include increased security with a magnetically controlled locking mechanism that does consider ease of use. However, this prior art does not teach how security and ease of use can be applied to side-release closure devices nor does itteach how a magnetically biased can be applied along the vertical or z-axis or integrated into the male part or part with legs. In this prior art, the locking feature is also the retaining feature and is magnetically biased to maintain lock with the mating parts together until manual release. However, in the way that these magnetic forces arranged, they are not at their weakest during manual release, and they are not at their strongest during engagement. As such, the arrangement described does not maximally support ease of disengagement and engagement.

[0018] Other mechanical and magnetic closure devices have been described to offer ease of engagement and disengagement. However, disengagement mechanisms and methods often differ from the one-handed pinch release that many users have become accustomed to in widely used conventional side-release buckles. Alternative buckles and devices that utilize different release mechanisms require the user to learn a different technique of engagement or disengagement which may be problematic for the user especially when needing to disengage an application in emergencies where speed and ease of use is imperative.

[0019] Few solutions have been invented to address ease of use while maintaining reliable function, one-handed side-release or pinch-release, and ease of manufacturing. SUMMARY

[0020] Closure devices are described herein that may be useful in a variety of articles in various applications, including connection between tension lines and products. The closure devices in accordance with this disclosure have relative ease in engagement and disengagement compared to prior art devices while maintaining reliable function, one-handed side-release or pinch-release, and ease of manufacturing.

[0021] A closure device for connecting articles, includes a first mating part comprising a body with an outer surface and an inner surface, a magnet or magnetic material, a feature for attachment to an article, and one or more side projections, wherein, the side projections include one or more retaining features. Wherein, the closure device for connecting articles also includes a second mating part comprising a body with an outer surface and an inner surface, a magnet or magnetic material withcorresponding orientation to the magnetic material of the first mating part such that magnetic attraction is created between the first and second mating parts, a feature for attachment to an article, and one or more leg features. The leg feature includes one or more retaining features that are complementary to the first mating part, and, wherein, the magnetic attraction created between the first and second mating part assists engagement of the two parts into a fastened configuration.

[0022] In accordance with the magnetic and mechanical buckle or closure device described herein, the inner and outer surfaces of the mating parts provide an operable surface for controlling engagement and disengagement in an alternative way to conventional side-release buckles. The inner and outer surfaces of the mating parts also serve as a base or foundation for features to secure magnets or magnetic material, side walls, legs, retaining features, features for attachment to an article, and / or other features.

[0023] In accordance with the closure device described herein, retaining features included in the side walls of the first mating part correspond with retaining features included in the legs of the second mating part to securely fasten the closure device in its closed position. As opposed to conventional side-release buckles that rely on a socket within the buckle to stabilize the fastened configuration, these retaining features, in combination with other features of the invention, stabilize and secure the buckle without the need for a socket. This significantly adds value to the end user in that it avoids the need for aligning and pushing into a socket and avoids the need to manufacture a socket.

[0024] In accordance with the closure device described herein, the magnetic attraction between the first and second mating part is configured to assist with engagement. The force of magnetic attraction is usually formed between opposite poles of two magnets, north and south poles, and is aligned vertically or near vertical along the z-axis in profile thickness. As such, the forces of magnetic attraction are highest along the z-axis and weakest in sheer along the x-y plane. Thereby, the closure device is configured to maximally assist in engagement along the z-axis while minimally inhibiting ease of disengagement.

[0025] In accordance with the closure described herein, these features provide ease of engagement compared to prior art devices. Aspects of the device that provide ease of engagement, as described herein, include magnetic attraction, a first mating part that is open to one side of the body as opposed to conventional side- release buckles and prior art alternatives that include cavities, and retaining features incorporated in the first and second mating parts. Stability and security of the closure device’s fastened configuration are provided through a magnetic bias in combination with the mated bodies of the first and second mating parts and retaining features. In the embodiments demonstrated and described herein, the retaining features are integrated into the side projections of the first mating part and in the legs of the second mating part, but other configurations are possible. In addition to these key features, sloped engagement surfaces and space for engagement shifting into the fastened configuration are also features that enable the closure device to easily find a fastened configuration without being inhibited.

[0026] In accordance with the closure device described herein, disengagement from the fastened configuration is enabled by a side-release mechanism. As described herein, the retaining features are simultaneously disengaged from one another when the legs of the second mating part are displaced medially. Disengagement is intuitive and easy for the user because a side-release or pinch-release mechanism is familiar to users due to the widespread use of conventional side-release buckles.

[0027] Ease of engagement and disengagement is particularly useful for wearable articles. For example, in a knee brace or ankle brace the user of the brace typically needs to open and close or engage and disengage multiple straps integrated into the device every time they put the brace on and take it off. In addition to ease, speed of use is also very important to people utilizing wearable devices. People are often frustrated or annoyed by delays in donning a device due to extra time in aligning and fastening closure devices. For people wearing orthopedic articles such as a brace, ease and speed of use could make the difference between being able to benefit from a medical device or not.

[0028] In accordance with the closure device described herein, the closure device only requires two parts wherein both parts can be manufactured quickly and easilywith various manufacturing methods thereby enabling low-cost and high-volume production.

[0029] In accordance with the closure device described herein, the first and second mating parts include a feature for attachment to an article. This may come in the form of a slot configured to secure a webbing strap, a stitching flange or sewable surface configured to allow for sewing attachment to an article, a through hole that is configured to provide an attachment point for a bolt, rivet, or other fastener attachment to an article.

[0030] In accordance with the closure device described herein, the closure device invention accomplishes functional requirements needed for the closure system with minimal parts, only two parts in embodiments presented and described herein. The described invention herein also avoids unnecessary hinges and high tolerance requirements. Additionally, the described invention herein, aligns normal forces with long axis of part thicknesses to increase strength and durability. As such, the devices described herein can provide reliable function. This can bring value to the user by avoiding unnecessary failure.

[0031] In accordance with the closure device described herein, none of the features herein require the closure device to be thicker in profile thickness, as compared to the prior art. As such, the benefits and value described herein can be offered without compromising the important factor of device profile thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Fig.1 is a 1:1 scale top perspective view of the mechanical and magnetic fit device showing first and second mating parts in a fastened configuration in accordance with an aspect of the disclosure.

[0033] Fig.2 is a 1:1 scale bottom perspective view of the mechanical and magnetic fit device of Fig.1.

[0034] Fig.3 is a detail view scaled 4:1 of the mechanical and magnetic fit device of Fig.1 showing the detail section 3 in Fig.2.

[0035] Fig.4A is a 1:1 scale top perspective view of the second mating part of the mechanical and magnetic fit device of Fig.1.

[0036] Fig.4B is a 1:1 scale side view of the second mating part of the mechanical and magnetic fit device of Fig.1.

[0037] Fig.4C is a 1:1 scale top view of the second mating part of the mechanical and magnetic fit device of Fig.1.

[0038] Fig.5A is a 1:1 scale bottom perspective view of the first mating part of the mechanical and magnetic fit device of Fig.1.

[0039] Fig.5B is a 1:1 scale side view of the first mating part of the mechanical and magnetic fit device of Fig.1.

[0040] Fig.5C is a 1:1 scale bottom view of the first mating part of the mechanical and magnetic fit device of Fig.1.

[0041] Fig.6A is a 1:1 scale top view of the mechanical and magnetic fit device for Fig.1.

[0042] Fig.6B is a 2:1 scale cross-section view of the mechanical and magnetic fit device of Fig.6A cut-through cross-section line 6B-6B in Fig.6A.

[0043] Fig.6C is a 2:1 scale cross-section view of the mechanical and magnetic fit device of Fig.6A cut-through cross-section line 6C-6C in Fig.6A.

[0044] Fig.6D is a 2:1 scale cross-section view of the mechanical and magnetic fit device of Fig.6A cut-through cross-section line 6D-6D in Fig.6A.

[0045] Fig.7 is a 2:1 scale cross-section view that is the same cross-section view of Fig.6C only with the first mating part beginning engagement with the second mating part.

[0046] Fig.8 is a 2:1 scale cross-section view that is the same cross-section view in Fig.6C only with the first mating part in the middle of engagement with the second mating part.

[0047] Fig.9 is a 2:1 scale cross-section view that is the same cross-section view in Fig.6C only with the first mating part nearing full engagement with the second mating part.

[0048] Fig.10 is a 1:1 scale of a mechanical and magnetic fit device showing first and second mating parts in a fastened configuration in accordance with an aspect of the disclosure.

[0049] Fig.11A is a 1:1 scale top view of the mechanical and magnetic fit device of Fig.10 in combination with a tension line.

[0050] Fig.11B is a 2:1 scale cross-section view of the mechanical and magnetic fit device of Fig.11A cut-through cross-section line 11B-11B in Fig.11A.

[0051] Fig.11C is the same cross-section view of the mechanical and magnetic fit device of Fig.11B with demonstration of the magnetic fields.

[0052] Fig.11D is a detail view scaled 4:1 of the mechanical and magnetic fit device of Fig.11B showing the detail section 11D in Fig.11B.

[0053] Fig.12 is a 1:1 scale perspective view of the second mating part of the mechanical and magnetic fit device of Fig.10.

[0054] Fig.13 is a 1:1 scale perspective view of the first mating part of the mechanical and magnetic fit device of Fig.10.

[0055] Fig.14A is a 1:1 scale top view of the second mating part of the mechanical and magnetic fit device of Fig.10.

[0056] Fig.14B is a 1:1 scale perspective view of the locking slider part of the mechanical and magnetic fit device of Fig.10.

[0057] Fig.14C is a 2:1 scale cross-section view of the first mating part of Fig.14A cut-through cross-section line 14C-14C in Fig.14A.

[0058] Fig.15 is a 1:1 scale perspective view of a mechanical and magnetic fit device showing first and second mating parts in a fastened configuration in accordance with an aspect of the disclosure.

[0059] Fig.16A is a 1:1 scale top view of the mechanical and magnetic fit device of Fig.15.

[0060] Fig.16B is a 1:1 scale cross-section view of the mechanical and magnetic fit device of Fig.16A cut-through cross-section line 16B-16B in Fig.16A.

[0061] Fig.16C is a 1:1 scale cross- view of the mechanical and magnetic fit device of Fig.16A cut-through cross-section line 16C-16C in Fig.16A.

[0062] Fig.17 is a 1:1 scale back view of the first mating part of Fig.15.

[0063] Fig.18 is a 1:1 scale front view of the second mating part of Fig.15.

[0064] Fig.19 is a 1:1 scale top perspective view of the first mating part of the mechanical and magnetic fit device of Fig.15.

[0065] Fig.20 is a 1:1 scale bottom perspective view of the second mating part of the mechanical and magnetic fit device of Fig.15.

[0066] Fig.21 is the same as Fig.16B with the second mating part shown and the first mating part removed.

[0067] Fig.22 is a detail view scaled 2:1 of the second mating part of Fig.21 showing the detail section 22 in Fig.21.

[0068] Fig.23 is a top view of a fit system in accordance with an aspect of the disclosure around a cross-section view of a leg.

[0069] Fig.24 is a front view of the fit system of Fig.23.

[0070] Fig.25 is a top view of the fit system of Fig.23 showing force distribution.

[0071] Fig.26 is a top view of the fit system of Fig.25 showing a different force distribution.

[0072] Fig.27 is a side view of a sandal that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0073] Fig.28 is a side view of a shoe that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0074] Fig.29 is a front view of a dog harness that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0075] Fig.30 is a front view of pants with a waist belt that include a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0076] Fig.31 is a perspective view of a watch device that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0077] Fig.32 is a back view of a that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0078] Fig.33 is a front view of protective knee pads that include mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0079] Fig.34 is a front view of a safety and rescue vest that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0080] Fig.35 is a front view of a life vest that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0081] Fig.36 is a perspective view of a tactical, ammunition, and / or utility vest that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0082] Fig.37 is a front view of a sporting, aviation, and / or space suit that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0083] Fig.38 is a perspective view of a helmet that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0084] Fig.39 is a perspective view of an ankle-foot orthosis that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0085] Fig.40 is a perspective view of a prosthesis that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0086] Figs.41 is a perspective view of a back brace that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0087] Figs.42 is a side view of a knee brace that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0088] Fig.43 is a side view of a knee immobilizer that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0089] Fig.44 is a front view of protective sporting equipment that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0090] Fig.45 is a perspective view catcher equipment that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0091] Fig.46 is a perspective view of a person wearing fishing equipment that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0092] Fig.47 is a side view of a hiking or sporting boot that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0093] Fig.48 is a perspective view of bicycle saddle bags that include a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0094] Fig.49 is a side view of a golf bag that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0095] Fig.50 is a perspective view of a transit pack that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0096] Fig.51 is a perspective view of a camping backpack that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0097] Fig.52 is a perspective view of a roll-up bag that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0098] Fig 53 is a perspective view of a sling bag or single-strap bag that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0099] Fig.54 is a perspective view of a messenger bag that includes mechanical and magnetic fit devices in accordance with an aspect of the disclosure.

[0100] Fig.55 is a perspective view of an apron that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0101] Fig.56 is a side view of a truck with a line-tensioning system that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0102] Fig.57 is a perspective view of a wall organizer that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure.

[0103] Fig.58 is a perspective view system that includes a mechanical and magnetic fit device in accordance with an aspect of the disclosure. DETAILED DESCRIPTION

[0104] The present disclosure describes a number of embodiments of closure devices that employ a magnetic and mechanical mechanism to connect and disconnect between aspects of an article or across articles. Thus, while some embodiments of the closure devices have been shown without connection to an article, all of the closure devices can be used with one or more articles. Note that each one of the closure devices can be part of a fit system or a line tensioning system as described herein.

[0105] As used herein, a “fit system” refers to a closure device connected to a wearable article with at least one tension line (flexible elongate members such as straps, cables, wires, etc.) with one or more attachment points or interfaces to the article or device.

[0106] As used herein, a “line tensioning system” refers to a closure device connected to a non-wearable article or structure with at least one tension line (flexible elongate members such as straps, cables, wires, etc.) with one or more attachment points or interfaces to the article, device, or structure. Similar to fit systems, the attachment points or interfaces may decrease in distance relative to one another or relative to the line tensioning system, which can be referred to as contraction or shortening. The closure devices used in line tensioning systems may operate in space without being directly mounted to an article or structure.

[0107] As used herein, an “article” refers to any type of tension line including straps, cords, laces, ropes, chains, and cables, and products including garments, shoes, boots, backpacks, messenger bags, luggage, sporting gear, wearable protective devices, wearable articles, sporting braces, exoskeletons, orthoses, and / or prostheses. The material of the article can be inelastic in nature or possibly have some elasticity. The tension line can be a cord, rope, cable, filament, or lace having a generally round profile, as well as flat straps having rectangular or square profiles. The material of the tension line can be any material typically used as a tension line in the same application. Thus, for a footwear application, the tension line used by the closure device in accordance with this description may be made from thesame material currently in use for Also, the materials used may differ from those typically used for the application. The materials used for the tension line can include metal (e.g., steel) cable, and polyester webbing.

[0108] As used herein, “connection” between articles by the closure device can refer to connection and disconnection between two aspects of the same tension line, between two tension lines, between a tension line and a product, between two different products, between two aspects of the same product, or other possible connection / disconnection between articles. The closure devices used may operate in space without being directly mounted to an article or structure. Adjustment of the attached article may be included within the attachment mechanism. For example, in some embodiments, a strap is able to pass through a slot in the closure device wherein the strap can be elongated or shortened. The attachment mechanism may also include a tension line path that maintains tension in the line until or unless adjustment is made.

[0109] Figures of the closure devices demonstrated herein include arrow graphics that are intended to provide orientational context and establish directional reference as it relates to the descriptions herein. The figures include three-dimensional or two- dimensional arrow graphics along the axes with the arrows pointing in the positive direction of the axes.

[0110] Figs.1 - 9 show details of a closure device 100 for connecting articles that incorporates a first mating part 1 with a cavity 18 that is arranged to receive a pair of legs 26 and body 21 of a second mating part 2 to engage from an overlapping orientation to then arrive at a fastened configuration which is assisted by magnetic attraction between the mating parts. As shown in Figs.1, 4B, 5B, and 6B-9, the first mating part 1 has a body 11 with an outer surface 12 and an inner surface 13 and the second mating part 2 has a body 21 with an outer surface 22 and an inner surface 23. Figs.4A, 5A, and 6B show that near the inner surface 13 of the first mating part 1 includes two magnets 14 and near the outer surface 22 of the second mating part 2 has a pair of corresponding magnets 24. As shown best in Fig.6B, with opposite magnetic poles facing one another, magnets 14 and 24 are configured to be magnetically attracted to one another and are aligned while closure device 100 is in afastened configuration 4. The fastened 4 of closure device 100 is shown at a 1:1 scale in a top oblique view in Fig.1, bottom oblique view in Fig.2, top view in Fig.6A, and in a cross-section view at a 2:1 scale in Fig.6B. As shown in Fig.6B, magnets 14 and corresponding magnets 24 are preferably as close as they can get to one another when retaining features 17 of the first mating part 1 and retaining features 27 of the second mating part 2 are mated. Configured as such, the magnetic attraction of magnets 14 and 24 create a magnet field bias that serves to assist in establishing and maintaining the fastened configuration 4 between the first mating part 1 and second mating part 2.

[0111] Figs.2, 3, and 6C shows that the retaining features 17 and 27 are mated in an interlocking position in the fastened configuration 4. As seen in Fig.2, retaining features 17 are incorporated to side projections 16 which protrude from body 21 of the first mating part 1. Fig.2 also shows that retaining features 27 are connected to legs 26 that extend along the x-axis from body 11 of the second mating part 2.

[0112] As shown in Figs.5A and 5C, the first mating part 1 is open from the bottom or inner surface 13 and, along with retaining features 17 and 27, y-z plane alignment features 52, x-y plane stabilization features 53, and bodies 11 and 21 being adapted to receive one another, the first mating part 1 and second mating part 2 are arranged to be able to come together into the fastened configuration from an overlapping configuration. As shown in Figs.1, 2, and 6A - 9, this can occur with the first mating part 1 dropping down onto the second mating part 2 from an overlapping configuration, or if closure device 100 is flipped, with the second mating part 2 dropping down onto the first mating part 1 from an overlapping configuration. The opening from the bottom or inside surface of the first mating part 1 can be considered a cavity 18 and is demonstrated herein. As demonstrated later in the disclosure with alternative embodiments, an opening or cavity of the first mating part 1 can alternatively be a partial opening or cavity to receive the second mating part 2 from an overlapping position. The ability for the mating parts of closure device 100 to drop onto one another from an overlapping position and meet into a fastened configuration, as shown in Figs.7 - 9, is in contrast to the socket type parts describedabove from the prior art whereby the to be pushed into the socket with relative precision and the mating parts aligned along the x-axis.

[0113] Figs.7 - 9 show the same cross-sectional view of Fig.6B with the mating parts engaging into the fastened configuration 4. Fig.7 shows the first mating part 1 starting to engage with the second mating part 2 with the direction of relative movement between the first mating part 1 relative to the second mating part 2 depicted by arrow 77. Figs.8 and 9 show further progression of the first mating part 1 engaging with the second mating part 2 as they move toward the fastened configuration 4 with arrow 77 showing the direction of motion between the two parts in the respective figures.

[0114] As shown in Fig.7, the first mating part 1 and second mating part 2 shift in relative position along the x-axis while coming together along the z-axis, during engagement. Then, as shown in Fig.8, the normal force retaining features 30 of first mating part 1 and second mating part 2 shift past one another along the y-axis. Lastly, as shown in Fig.9, the oblique force retaining features 31 of the first mating part 1 and second mating part 2 slide to overlap along the x-axis as they move towards being interlocked in the fastened configuration 4. This relative motion that occurs between the mating parts during engagement in order to arrive at their interlocked arrangement in the fastened configuration 4 is guided by the forces of magnetic attraction and is directed by the interaction between complementary retaining features 17 and 27 wherein the associated surfaces of the complementary teeth that makeup retaining features 17 and 27 must shift past one another. In order to accommodate the relative shift between mating parts that is necessary for retaining features 17 and 27 to meet their interlocked arrangement, clearance is provided between contacting surfaces of the first and second mating parts to allow for the relative shift between parts along the x-axis and an unobstructed pathway of engagement between the mating parts. A similar or alternative closure device that does not offer a clear or uninhibited pathway is possible but would generally include the disadvantage of needing to push past or through resistance. As shown in detail in Fig.7, sloped engagement surfaces 33 assist the ease with which the first and second mating parts are able to come together into the fastened configuration 4 by providing a sloped surface for the complementaryretaining features 17 and 27 to easily one another. In addition to the engagement pathway that is demonstrated in Fig.7, the mating parts could alternatively come together from a position of being more overlapping along the x- axis and shifting together along the x-axis as opposed to shifting apart. This option is not shown in the figures because for most applications, the first mating part 1 and second mating part 2 of closure device 100 are typically coming together from a position of being separated along the x-axis.

[0115] Figs.2, 4A - 5C, and 6D show that closure device 100 includes y-z plane alignment features 52 and x-y plane stabilization features 53. As shown most clearly in Fig.6D, y-z plane alignment features 52 are angled surfaces along the x-z plane and they help to guide alignment of the mating parts, especially during engagement of the two parts along the x-z plane. As shown in Figs.4C and 5C, x-y plane stabilizing features 53 serve in a similar way to orient the parts to come together and also serve to stabilize the mating parts in the x-y plane in the fastened configuration 4. The y-z plane is naturally stabilized by contacting surfaces between body 11 and body 21. Support, guidance, and / or alignment may be offered by a combination of y-z plane alignment features 52 and x-y plane stabilization features 53 and my span across different planes or directions. Other features to aid in orientation and / or ease of engagement of the mating parts to settle in the fastened configuration 4 are possible and included herein. For example, smooth surface finishes, low friction materials, lubricants, and / or reduced or selective contact surface area, are all options to assist proper and easy engagement of the mating parts in addition to sloping, curved, or flat surfaces with intentional interaction as demonstrated herein.

[0116] As shown in Figs.3, 6C, and 9, retaining features 17 and 27 of the first and second mating part both include a normal-force retaining feature 30 at end of the retaining feature teeth as well as a corresponding normal-force retaining feature 30 at the adjacent surface of the side projection 16 and leg feature 26. These surfaces meet to block normal forces in horizontal direction, along the x-axis, that are pulling or pushing the mating parts to separate away from one another. Figs.3, 6C, and 9 also show that retaining features 17 and 27 of the first and second mating part both include an oblique-force retaining feature 31. The oblique-force retaining features 31 are therise surface or horizontal surface of feature teeth and are in contact when the closure device 100 is in the fastened configuration 4. Arranged as such, oblique- force retaining features 31 from the first and second mating parts block relative rotational movement between the mating parts and oblique shifts of the parts that could otherwise result from forces at an angle away from the x-axis. As shown in Figs.1, 2, 6A and 9, when in the fastened configuration 4, contact between the inner surface 13 of the first mating part 1 and the outer surface 22 of the second mating part 2, in combination with the corresponding retaining features 17 and 27, with associated normal-force retaining features 30 and oblique-force retaining features 31, combine to substantially block relative motion between the first and second mating parts until manual release. In some embodiments, only one normal force retaining feature may be sufficient. In others, normal and oblique forces retaining features are advantageous. Generally, normal force blocking surfaces will be aligned with or near the y-z plane and oblique blocking surfaces will be at or near the x-y plane. Retaining features 17 and 27 of closure device 100 take the general form of teeth, other configurations of retaining features 17 and 27 are possible for the invention herein.

[0117] As shown most clearly in Fig.4C and Fig.5C, first mating part 1 and second mating part 2 normal-force retaining features 30 both include acute angles 32 in the x- y plane towards the positive x-axis direction with the all or part of the retaining surfaces at angle less than 90 degrees between the y-axis and the positive direction in the x-axis. As such, when normal and / or other forces are applied to the closure device 100, the closure device 100 is biased towards further engagement. If these angles were obtuse angles, increasing normal forces could push the legs medially enough to release retaining features and disengage from fastened configuration 4.

[0118] As shown clearly in Fig.4C, legs 26 of the second mating part 2 include narrow segments 38 which have a relatively small dimension along the y-axis that provide a living hinge or flexible section to the legs 26. Manual medial displacement of the legs 26, usually initiated by a pinching force from the user and enabled by narrow segments 38, causes simultaneous disengagement of the pair of retaining features 27 of the second mating part 2 with retaining features 17 of the first mating part 1. With retaining features 17 and 27 disengaged between the mating parts and thelegs 26 deflected medially, the first 1 and second mating part 2 are free to disengage from the fastened configuration 4 by sliding or pivoting apart. Tension forces or normal forces pulling first mating part 1 and second mating part 2 apart often aids in separating the mating parts during disengagement.

[0119] As shown in Figs.4A, 5A, 4C, 5C, and 6B, the closure device 100 includes two pairs of magnets 14 and 24 between the mating parts. As shown in Fig.6B, magnets 14 and 24 are oriented with their N-S magnetic pole axis 45 through north pole 46 and south pole 47 parallel and oriented vertically along the z-axis with the thinnest dimension of magnets 14 and 24 also oriented vertically along the z-axis and the largest or most broad surfaces of magnets 14 and 24 generally spanning the x-y plane. Magnets are strongest in alignment with their magnet poles and weakest in sheer perpendicular to the axis of the magnetic poles. Therefore, the orientation of magnets 14 and 24 with their thinnest dimensions vertically along the z-axis, provides a relatively large amount of force for assisting to bring the mating parts together into the fastened configuration 4 compared to minimal forces that inhibit manual release and disengagement. In other embodiments one or more of the magnets could be a ferrous metal or magnetic material instead of a magnet for cost savings or other benefits.

[0120] Closure device 100 shown in Figs.1 - 9 incorporates feature for attachment 15 to an article and feature for attachment 25 to an article that provide connectability of first mating part 1 and second mating part 2 to closure device 100. The features for attachment 15 and 25 are reinforced slots configured to accept a 1.5 inch strap or straps as shown in Figs.4C and 5C. Alternatively, a feature for attachment 15 and 25 to an article could be a stitching flange or sewable plastic surface 0.7-1.5 mm thick that is configured for a sewing machine to stitch through, or features for attachment 15 and 25 could be one or more through holes that are configured to serve as anchoring points to attach an article with use of bolts and / or rivets.

[0121] As shown in Figs.1, 4A, 5A, 4C, 5C, and 6A, closure device 100 includes a visual indicator 50 that provides a visual reference to assist in establishing proper alignment during engagement and / or disengagement of the mating parts. In closure device 100, visual indicator 50 assumes the form of a triangular shaped boss featureintegrated into the second mating part a corresponding triangular shaped void integrated into the first mating part 1. Other visual indicators are possible and are included herein.

[0122] As shown in Figs.1, 2, 4A, 4B, 5A, 5B, and 6A - 9, the first mating part 1 and second mating part 2 of closure device 100 are substantially flat. As shown in Figs.1 - 2, closure device 100 forms a generally rectangular cuboid shape when mating parts are together in fastened configuration 4. Embodiments of the invention herein may include other shapes and may be generally flat in nature or may be partially or fully curved or configured to accommodate a curved application or article. A partially or fully curved shape may be more suited for applications wrapping around an article or application with a radius, such as fitting around a leg or arm of the human body, for its ability to align with forces normal to the radius of the body.

[0123] The first mating part 1 and second mating part 2 of closure device 100, as shown in Figs.1-9, is generally made with materials that are substantially hard and rigid. Because the legs 26 of the second mating part 2 need to flex during disengagement, the second mating part 2 in particular needs to be made with a material that is hard but not brittle meaning that the material has a high resistance to scratching or indentation but can bend or deform significantly before breaking, exhibiting a property called ductility. The first mating part 1 does not include such requirements so it could be made out of a different material that is stronger and / or more rigid. That said, the mating parts may be made with more than one material, for example, they may include an overmolded material that is softer at surfaces commonly gripped by the user.

[0124] Figs.10-14C show an alternative closure device 200 to closure device 100 wherein many elements are the same or similar to closure device 100 with differences to closure device 100 as follows. As shown in Fig.11A, closure device 200 includes features for attachment 215 and 225 that are appropriate for a 1-inch webbing strap 219 as well as the size and shape of body 211 of the first mating part 201 and body 221 of the second mating part 202 and associated features. The primary difference and significant feature demonstrated in closure device 200 is a locking feature thatadditionally secures the first mating with the second mating part 202 in the fastened configuration 204.

[0125] Fig.14C shows the magnetic fields of the second mating part 202 wherein the arrows depicting the direction of the magnetic fields are enlarged between the pair of magnets 224 to highlight the fact that these magnetic fields are opposing one another. In this arrangement with the magnet 224 that is integrated in locking slider 203 having its north pole 246 facing down and the adjacent magnet 224 of second mating part 202 with its north pole 246, the locking slider 203 is pushed down in the locking slider channel 293 when the second mating part 202 is separated from the first mating part 201. As shown in Fig.11C, when the mating parts engage into the fastened configuration 204, the aligned and corresponding magnetic field of magnet 214, that is at the front of the first mating part 201, overpowers the neighboring and opposing magnetic field of magnets 224 and 214 that are towards the back or negative direction along the x-axis in the first mating part 201 and second mating part 202. As shown in the detailed view of Fig.11D, magnet 214, that is at the front of the first mating part 201, is raised along the z-axis compared to magnets 224 and 214 that are towards the back or negative direction along the x-axis in the first mating part 201 and second mating part 202. This causes the locking slider 203 to slide upward within the locking slider channel 293 of the second mating part 202 to meet with the raised portion of the inner surface 213 of first mating part 201. In the raised configuration of locking slider 203 in the locking slider channel 293, blocking surface 284 of the locking slider 203 and the corresponding blocking surface 285 of the first mating part 201, that are vertically oriented along the z-axis and are collinear, join to block relative motion along the x-axis between mating parts. Since the locking slider 203 is limited to only sliding up and down in the locking slider channel 293, lateral forces in the x-axis, such as normal forces applied to closure device 200, can’t dislodge or move the locking slider 203 in the locking slider channel 293. As shown in Fig.14B, the locking slider 203 includes locking slider rails 295 that further stabilize the locking slider 203 within the locking slider channel 293 which also provides an upper limit to how far the locking slider 203 can move up along with a lower limit to how far the locking slider 203 can move down as limited by the locking part snap-fit retainer 286. Blocking surface 284 of the locking slider 203 and the correspondingblocking surface 285 of the first 201 stop relative movement between the mating parts along the x-axis. Retaining features 217 and 227 separately blocking all other relative motion between the mating parts, therefore the first mating part 201 and second mating part 202 are locked relative to one another until manual release as described herein.

[0126] When release from the fastened configuration 204 of closure device 200 is desired, manual release by pinching legs 226 together in the x-y plane, as described in detail for closure device 100, operates in the same way whereby retaining features 217 and 227 are disengaged and magnetic attraction forces are at their weakest in sheer for disengagement of the mating parts. During disengagement, blocking surface 284 of the locking slider 203 and the corresponding blocking surface 285 of the first mating part 201 move away from one another so they do not inhibit disengagement. As in closure device 100 and closure device 200, since both legs 226 need to be simultaneously displaced medially while a disengagement force is applied, inadvertent disengagement is highly unlikely. Configured in this way, the locking feature integrated into closure device 200 is able to assist engagement of the mating parts into the fastened configuration 204, provide a secure fastened configuration 204, while still allowing for ease of disengagement.

[0127] A locking feature or additional securing feature may be required when an application necessitates safety and security that is critical or in applications where forces may include normal forces in horizontal direction, along the x-axis, that are pulling or pushing the mating parts towards one another. The closure device demonstrated and described herein is designed to offer superior ease of use, one- handed ease of use, and faster ease of use among other advantages as compared to the prior art. Closure device 200 demonstrates an embodiment that offers additional safety and security through a magnet and mechanical locking mechanism while maintaining superior ease of use, one-handed ease of use, and faster ease of use.

[0128] Compared to closure device 100, closure device 200 does include a separate part in the locking slider 203 that moves up and down in the locking slider channel 293 of second mating part 202. This additional part does add some cost to the manufacturing and assembly of the closure device 200 compared to closure device100. However, the additional cost of and assembly is minimized by a design that does not require more additional parts, such as a spring, lid, additional housing, and / or difficult assembly. As shown in Fig.11D, locking slider channel 293 includes locking part snap-fit retainer 286 that allows the locking slider 203 to be easily assembled as well as being replaceable and cleanable. This mechanism of providing additional security demonstrated herein by closure device 200 is not limited to the configuration shown and demonstrated herein. Other arrangements and mechanisms of blocking relative movement between the mating parts until manual release by medial displacement of the legs, while also maintaining ease of engagement, are possible and are included herein.

[0129] As seen in Figs.11B - 11D, and 14C, the two magnet poles 245 of closure device 200 are parallel and opposite in direction. In addition to coordinating the function of the locking mechanism of closure device 200 as described herein, the opposite direction of the magnetic fields also provides an advantage for engagement of the mating parts. As the outer surface 213 of first mating part 201 begins to pass over the otter surface 222 of the second mating part 202, the magnetic poles 245 of front magnet 214 are in opposition to the back magnet 224 of the second mating part 202. As such, the parts repel one another until they continue to overlap. Then as the mating parts approach vertical alignment, magnets 214 and 224 align with their corresponding and respective magnetic pole 245 directions, thereby becoming forcibly attracted to one another at the appropriate point of alignment. This helps to avoid having the mating parts come together with improper alignment.

[0130] As shown in Figs.10-14C and described herein, the additional securing mechanism of closure device 200 includes advantages over the locking mechanism described in US patent 11,666,123 (Lian Yang Plastics Co, LTD) and discussed above. One advantage is that locking slider 203 and associated blocking surface 284, as well as the corresponding blocking surface 285 of the first mating part 201, are independent of the retaining features 217 and 227 and the manual release mechanism of deflecting the legs 226 medially. As such, the manual release mechanism of closure device 200 does not require overcoming the magnetic forces of the additional securing feature described herein, thereby making release easier for the user. Anadditional advantage is that the mating parts is perpendicular to all magnetic pole axes 245 along the x-y plane. Therefore, all magnets are arranged to be strongest in assisting engagement while being weakest in resisting disengagement which further enables ease of use compared to the prior art.

[0131] As seen in Figs.11B, 11C, and 13, the cored-out portion of the first mating part 201 seen at the inner surface 223 of body 211 between magnets 214 and feature for attachment 215 to an article is included to maintain a more even wall thickness and also to reduce surface area of contact surfaces that slide on each other during engagement and disengagement. Other such design features are included herein.

[0132] As seen in Figs.12 - 14A, x-z plane alignment features 252 and x-y plane stabilization features 253 of closure device 200 serve a similar function to that of closure device 100, however, they span a wider and larger area thereby assisting alignment in the x-z plane and stability in the x-y plane to a greater degree.

[0133] As seen in Figs.11B - 11D, and 14C, sloped disengagement surfaces 288 are included in closure device 200, in addition to low friction materials and high-gloss surface finishes, to improve ease of disengagement.

[0134] Figs.15-22 show an alternative closure device 300 to closure device 100 and 200 wherein many elements are the same or similar to closure device 100 with differences to closure device 100 as follows. As shown in Figs.15 and 16A, closure device 200 demonstrates an alternative arrangement of the legs 326 wherein legs 326 and the narrow segments 338 of legs 326 in the second mating part 302 are lateral to the side projections 316 and body 321 of the first mating part 301.

[0135] As shown in Figs.15, 16A, and 20, legs 326 also project out of the feature for attachment 325 to an article instead of the body 321 of the second mating part 302. In this arrangement, function is the same or similar only less length is required along the y-axis for closure device 300.

[0136] As shown in Figs.15, 16A, 19, and 20, legs 326 include medial projections 377 and a pair of retaining features 327 on each of the two legs for a total of four retaining features 327 of the second mating part 302 and four corresponding retaining features 317 integrated into retaining channel 329 of the first mating part 301. Asshown in Figs.15 and 16, the two are flipped, compared to the orientation shown in closure device 100, and 200. In closure device 300, the inner surface 323 of the second mating part 302 drops onto the outer surface 312 of the first mating part 301 during engagement. In the fastened configuration 304, part of the four retaining features 327 and part of the medial projections 377 of legs 326 rest on the four corresponding retaining features 317 integrated into retaining channel 329 of the first mating part 301. Upon manual release via medial displacement of legs 326, the four retaining features 327 and part of the medial projections 377 of legs 326 are pushed past the four corresponding retaining features 317 integrated into retaining channel 329 of the first mating part 301 and the four retaining features 327 and part of the medial projections 377 of legs 326 are free to slide through the retaining channel 329 that includes a lateral slot that allows a portion of the medial projections 377 of legs 326 to pass through during disengagement.

[0137] As shown in Figs.15, 16A, and 19, the first mating part 301 includes two separate cavities 318 in the body 311 to receive the second body 321 from above, or from below if the closure device 300 is flipped, with the first mating part 301 and second mating part 302 in an overlapping configuration. As in closure device 100 and 200, this is further facilitated by closure device 300 including retaining features 317 and 327, x-z plane alignment features 352, x-y plane stabilization features 353, bodies 311 and 321, and other features that are also adapted to allow for the first mating part 1 and second mating part 302 to come together into the fastened configuration from an overlapping configuration.

[0138] As shown in Figs.15, 16A, 19, and 20, medial projections 377 connect to legs 326 at a diagonal angle which increases strength of the medial projections 377 along the x-axis where normal forces are expected. Moreover, the four retaining features 327 connect to medial projections 377 are longest along the x-axis which further reinforces normal forces that are spread out across the four retaining features 327 and four corresponding retaining features 317 integrated into retaining channel 329 of the first mating part 301. The retaining channel 329 of mating part 301 is also structured to have high strength, especially along the x-axis, in that it is connected and supported by body 321 along the length of the x-axis at the outer surface 322 andinner surface 323 with the exception 318 and a small hole in the bottom that allows the parts to be injection molded with a straight pull instead of requiring a complicated cam mechanism. With these design elements, closure device 300 is structured in a way to offer increased strength, especially along the x-axis where the largest forces are expected for most applications.

[0139] As shown in Figs.15, 16A, 19, and 20, closure device 300 includes a textured surface 382 on the lateral aspect of legs 326. This textured surface 382 provides a tactile and visual indicator or feedback for the user to easily identify where they should press to release the closure device by feel or by looking at closure device 300. Other tactile and visual indicators are possible and are included herein. For example, the first mating part 301 and / or the second mating part 302 may be partially or fully color coded, patterned, textured, or otherwise indicated at contact surfaces in order to assist the user in knowing which surfaces come together in engagement to find the fastened configuration. This may be especially useful in applications where the closure device is attached to a loose strap or belt wherein mating parts may get disoriented from the appropriate alignment.

[0140] As shown in Fig.16B, magnets 314 and 324 are very close to one another in the fastened configuration 304 but not in contact. Closure device 300 optionally includes noise reduction contact surfaces 364 which are a thin layer of softer material that is adhered to the contact surfaces of the part after the parts have been molded. Noise reduction contact surfaces 364 and space between magnets 314 and 324 combine to offer a magnetic and mechanical closure device that is silent or reduced in noise during use. In many applications, the noise created during use of the closure devices herein can be beneficial in that they can provide an auditory indicator. More specifically, an auditory indicator may be a clicking feature or an audible noise that is generated during engagement and / or disengagement of the mating parts and may be intentionally amplified or altered. The sound of the magnets and contact surfaces coming together can be identified by the user to let them know that the closure device is fastened without needing to look or feel for confirmation. In other applications such as in the military or in the hunting industry, noise created by any closure device snapping together can be problematic. In applications such as this, an auditory noisereducing feature integrated into a adjustment mechanism, or fit system may be beneficial and is included herein. Alternative ways of providing an auditory noise reducing feature are also included herein. For example, one or more of the part bodies being made with a material that reduces noise during use and / or overmolded with a material that reduces noise during use, spray-on additives, or paint-on additives, dip coatings, geometry integrated into the part surfaces, and / or other means.

[0141] The closure devices described herein can be offered in an assortment of closure devices configured in a variation of closure device attributes. Variation within the closure device attributes may include; shape, curvature, structure, feature for attachment to an article, magnet, size, material, and other properties, to accommodate the different needs across applications.

[0142] Pressure distribution of the fit system may relate to the load delivered, surface area, geometry or shape of the fit system, and / or rigidity of fit system components. The amount of load onto the body applied by a fit system divided by the surface area of the applied load will yield a given pressure distribution. For most applications that require a high-tension fit system (tension over 100 lbs.), it is recommended that associated loads be distributed onto straps over 1.5” in width or which have a surface area of at least 8 square inches. For example, a fit system that is low in profile and includes a contour that matches the body it is applied to, has tapered rigidity of its members wherein the system becomes less rigid near the edges, and has rounded edges. One important aspect of the fit system shape is how well the contour of the pressure distribution pad 1333 matches the natural curvatures of the body or how well it can conform to that shape such that pressure can be evenly distributed over the body. Another important aspect of the shape is how sharp or blunt (the radius) the edges are of the fit system members. Edges that are too sharp can lead to peak pressures that could result in discomfort, bruising, or skin abrasion.

[0143] By way of example, Figs.23 and 24 show fit system 1300 with closure device 100’ and pressure distribution pad 1333 banded about a user’s leg with fit system 1300 and pad 1333 positioned on the front of the leg. Also, as shown in Fig. 82, an additional pressure distribution pads 1334, 1336a, and 1336b. Pad 1334 isrelatively low in durometer and is the back side of the leg between a strap 1302 and the leg to distribute pressure to the leg. Pressure distribution pads 1336a and 1336b include a low durometer inner surface and a semi-rigid shell with a tunnel for strap 1302 to pass between the top and bottom surfaces. In this configuration, strap tension is not distributed directly onto the body. Strap tension and resulting forces from strap tension are distributed indirectly through pressure distribution pads 1334, 1336a, and 1336b. As force equals pressure divided by area, resultant forces of this fit system are reduced by increasing the surface area of pressure distribution. As shown in Fig.25, the pressure distribution pads 1333 and 1334 cause the tensile forces in the strap 1302 to direct compressive forces in the direction of the arrows in Fig.25. In Fig.26 the location of fit system 1300 with closure device 130’ and pressure distribution pad 1333 is shifted to a more curved portion of the leg. The ability for many of the devices herein to slide along the length of the strap while the tension is loose is made possible by the strap being permanently fixed on either side and passing continuously through the spool. This configuration offers the distinct advantage of allowing for selective location of adjustment in order to maximize comfort or improve performance. In this case, the pressure distribution pad 1333 is flexible and therefore bends to match the curvature of the leg.

[0144] Figs.22A - 58 show various uses of closure devices, fit systems, and line tensioning systems in combination with or as functional articles. In describing the various systems 120 (fit systems and line tensioning systems) in combination with the articles shown, reference is made to a mechanical and magnetic fit device in accordance with an aspect of the disclosure, which can be any of the closure devices described herein in accordance with this disclosure. It will be appreciated that closure device 120 may take the form of any of the embodiments of and of the closure devices described herein and is not limited to the schematics shown in Figs.22A - 58.

[0145] Figs.27-32 show systems applied to lifestyle wearable articles, including footwear, clothing, baby care accessories, wrist wear, and pet wear. Specifically, Fig. 27 shows a sandal 1400 including the closure device 120 to improve ease and speed of use. Fig.28 shows a shoe 1410 including closure device 120 that can enable independent use for some users with hand dexterity issues or strength issues who mayotherwise not be able to independently their own shoes. Fig.29 shows a dog harness 1420 that includes fit system 120 to help dog owners to put the harness on quickly and more easily. Fig.30 shows pants 1430 with a waist belt 1440 that includes fit system 120 that improves user experience. Fig.31 shows a watch device 1450 that includes a fit system 120 integrated into the watch band 1460 that enables one-handed use of the watch closure device. Fig.32 shows a baby harness 1470 with fit system 120 that frees one hand for parents to use during donning and doffing of their baby harness.

[0146] Figs.32 - 38 show fit systems 120 applied to protectable wearable articles utilized in various fields of application, including various types of protective gear, utility wear, sporting wear and sports gear. Specifically, Fig.33 shows protective knee pads 1500 with fit systems 120 that make the knee pads stronger and more durable in addition to being easier to use. Fig.34 shows a safety and rescue vest 1510 with fit systems 120 that assist in rescue. Fig.35 shows a life vest 1520 with fit systems 120 that reduce barriers to use. Fig.36 shows a tactical, ammunition, and / or utility vest 1530 with fit systems 120 that allows the user to quickly donn or doff the vest in urgent situations. Fig.37 shows a sporting, aviation, and / or space suit 1540 with fit systems 120 that enable the user to engage and disengage the closure mechanism with gloves on. Fig.38 shows a helmet 1550 with fit system 120 that allows the user to keep one hand on their bike while they fasten their helmet.

[0147] Figs.39 - 43 show fit systems 120 applied to orthopedic devices. Specifically, Fig.39 shows an ankle-foot orthosis 1600 that includes fit system 120 and aids a user with an impairment to use only one hand to donn and doff their brace. Fig.40 shows a prosthesis 1610 that includes fit system 120 that makes it easier for the user to quickly relieve pressure in their prosthesis while sitting. Fig.41 shows a back brace 1620 that includes fit system 120 improving the user’s ability to open and close the brace. Figs.42 shows a knee brace 1630 that includes fit systems 120 that, in addition to improving donning and doffing, make it easier for the user to adjust the fit of their knee brace throughout the day. Fig.43 shows a knee immobilizer 1640 with fit systems 120 which make use significantly better for multiple straps wherein most knee immobilizers include 3-5 straps.

[0148] Figs.44 - 49 show fit systems applied to sporting equipment utilized in various sporting applications. Specifically, Fig.44 shows protective sporting equipment, such as football pads 1700, that include fit systems 120 that improve the strength and durability of the equipment. Fig.45 shows baseball catcher equipment 1710 with fit systems 120 that allow the catcher to fasten and unfasten their pads without taking off their baseball mitt. Fig.46 shows a person wearing fishing equipment 1720 that includes fit system 120 that improves attachment of the integrated shoulder and waist straps. Fig.47 shows a hiking or sporting boot 1730 with fit system 120 at the ankle. Fig.48 shows bicycle saddle bags 1740 that include fit system 120 that allows the user to open and close the saddle bags while holding their bike with one hand. Fig.49 shows a golf bag 1750 with fit system 120 that makes it easier at each stroke for the user to donn and doff their golf bag.

[0149] Figs.50 - 54 show fit systems 120 applied to various types of bags that are utilized in various applications. Specifically, Fig.50 shows a transit pack 1800 that includes fit system 120. Fig.51 shows a camping backpack 1810 with fit system 120 at multiple straps throughout the pack for improved speed and ease of use. Fig.52 shows a roll-up bag 1820 with fit system 120 that can make it a lot easier to connect after rolling up the contents in the bag. Fig 53 shows a sling bag or single-strap bag 1830 with fit system 120. Fig.54 shows a messenger bag 1840 with fit systems 120 that make it fast and easy to open and close the outside flap of the bag.

[0150] Fig.55 shows an apron 1900 that includes fit system 120 that makes it faster and easier to attach the apron strap.

[0151] Figs.56 - 58 show fit systems or line-tensioning systems 120 applied to applications that are utilitarian but not worn on the body. Specifically, Fig.56 shows a truck 2000 with a line-tensioning system 120 that makes it easier to connect and disconnect a strap that can be used to secure an object 2002 to their truck, wherein a separate device may be used to tighten the strap. Fig.57 shows a wall organizer 2010 with fit system 120 that allows the user to quickly capture an object with one hand while holding it with the other hand. Fig.58 shows a storage system 2020 that includes fit system 120.

[0152] The above examples are not intended to be limiting.

[0153] The concepts described be characterized by the following statements of embodiments of different scope.

[0154] 1. A closure device for connecting to first and second portions of one or more articles, including: (a) first mating part having a first body having an inner surface and an outer surface, a first magnetic retainer provided to the first body, a first retaining feature incorporated into the first mating part, and a first feature for attaching the first mating part to a first portion of the one or more article, (b) a second mating part discrete from the first mating part, including, a second body having an inner surface and an outer surface, a second magnetic retainer provided to the second body, a second pair of legs projecting from a portion of the first body, a second retaining feature incorporated into the second mating part, and a second feature for attaching the second mating part to the second portion of the one or more articles, wherein the inner surface of the first mating part includes at least one cavity that is adapted to receive the second body from above or below in an overlapping configuration, and the first retaining feature incorporated into the first body is adapted to engage with the second retaining feature incorporated into the second body to rest in a fastened configuration with the outer surface of the second mating part, and in the fastened configuration, relative displacement of the first and second mating parts in at least one direction is blocked and the first magnetic retainer and the second magnetic retainer are magnetically attracted to assist retaining engagement of the fastened configuration and to resist release from the fastened configuration.

[0155] 2. The closure device according to embodiment 1, wherein one of the first and second mating parts includes a locking feature that is adapted to sustain the fastened configuration until manually released.

[0156] 3. The closure device according to embodiment 1, wherein the locking feature is biased away from inhibiting engagement of the first mating part relative to the second mating part until the first mating part has been engaged with the second mating part.

[0157] 4. The closure device according to embodiment 1, wherein the locking feature is magnetically attracted to the opposing mating part such that the magneticattraction serves to pull the locking a locking configuration upon engagement of the two mating parts.

[0158] 5. The closure device according to embodiment 1, wherein the locking feature includes a second magnetic field that is parallel to a first magnetic field that serves to assist in retaining engagement and resisting release of the fastened configuration of the first and second mating parts.

[0159] 6. The closure device according to embodiment 1, wherein the magnetic attraction that serves to assist in establishing and maintaining the fastened configuration between the first and second mating part is arranged to provide more force assisting the parts to engage in the fastened configuration compared to the force inhibiting disengagement.

[0160] 7. The closure device according to embodiment 1, wherein the magnetic attraction that serves to assist in establishing and maintaining the fastened configuration between the first and second mating part is oriented vertically along the z-axis.

[0161] 8. The closure device according to embodiment 1, wherein the first mating part includes a third magnetic retainer, and the second mating part includes a fourth magnetic retainer, and the first and second magnetic retainers have poles that are oriented in a first direction, and the third and fourth magnetic retainers having poles that are oriented in a second direction parallel to the first and opposite in direction.

[0162] 9. The closure device according to embodiment 1, wherein the locking feature is independent of the release mechanism.

[0163] 10. The closure device according to embodiment 1, wherein the locking feature is independent of additional securing features and the release mechanism.

[0164] 11. The closure device according to embodiment 1, wherein at least one first retaining feature, incorporated into the first mating part, is attached to a side projection or projection that is connected to the body of the first mating part.

[0165] 12. The closure device to embodiment 1, wherein at least one second retaining feature, incorporated into the second mating part, is attached to the legs of the second mating part.

[0166] 13. The closure device according to embodiment 1, wherein, when in the fastened configuration, the interaction between the body surfaces of the first mating part and body surfaces of the second mating part, in combination with the corresponding retaining features, combine to substantially block relative motion between the first and second mating parts until manual release.

[0167] 14. The closure device according to embodiment 1, wherein the retaining features of the first mating part and / or second mating part are formed by or includes teeth shaped projections.

[0168] 15. The closure device according to embodiment 1, wherein interaction of complementary retaining features of the first and second mating parts causes the parts to shift away from one another in relative position along the x-axis while coming together along the z-axis, during engagement.

[0169] 16. The closure device according to embodiment 1, wherein interaction of complementary retaining features of the first and second mating parts causes the parts to shift away from one another in relative position along the x-axis while come together along the z-axis, during engagement, then allows the parts to come together along the x-axis to arrive at in the fastened configuration with complementary retaining features interlocked or engaged.

[0170] 17. The closure device according to embodiment 1, wherein retaining features of the first or second mating part include one or more features to aid in ease of engagement.

[0171] 18. The closure device according to embodiment 1, wherein retaining features of the first or second mating part include sloped engagement surfaces.

[0172] 19. The closure device according to embodiment 1, wherein retaining features of the first or second mating part include one or more features to aid in orientation and / or ease of engagement of the mating parts to settle in the fastened configuration.

[0173] 20. The closure device to embodiment 1, wherein retaining features are arranged to sustain the fastened configuration upon normal forces attempting to pull to parts apart and all oblique forces, until manual release.

[0174] 21. The closure device according to embodiment 1, wherein release from complimentary retaining features and the fastened configuration is manually operable by pinching the legs together.

[0175] 22. The closure device according to embodiment 1, wherein manual displacement of the legs causes disengagement of the retaining features of the first and / or second mating part.

[0176] 23. The closure device according to embodiment 1, wherein manual medial displacement of the leg features disengages complementary retaining features of the first and second mating parts, thereby enabling disengagement of the fastened configuration.

[0177] 24. The closure device according to embodiment 1, wherein the one or more of the mating parts include one or more textured surfaces or tactile indicators.

[0178] 25. The closure device according to embodiment 1, wherein the one or more of the mating parts include one or more visual indicators.

[0179] 26. The closure device according to embodiment 1, wherein the one or more of the mating parts include one or more auditory indicators.

[0180] 27. The closure device according to embodiment 1, wherein the one or more of the mating parts include one or more auditory noise reducing features.

[0181] 28. The closure device according to embodiment 1, wherein the body of the first and second part are substantially flat.

[0182] 29. The closure device according to embodiment 1, wherein the body of the first and second part are substantially curved or partially curved.

[0183] 30. An article, comprising a wearable article having first and second portions; and the closure device according to embodiment 1 coupling the first and second portions.

[0184] 31. The article of wherein the wearable article is one of clothing, footwear, pet wear, wristwear, a babycare accessory, protective gear, utility wear, sporting wear or sports gear, and an orthopedic or prosthetic device.

[0185] 32. An article, comprising a utilitarian article having first and second portions; and the closure device according to embodiment 1 coupling the first and second portions.

[0186] 33. The article of embodiment 32, wherein the utilitarian article is one of a bag, sporting gear, storage device and a retainer.

[0187] 34. A closure device, adjustment mechanism, or fit system that includes an auditory noise reducing feature.

[0188] 35. A closure device, adjustment mechanism, or fit system that includes an additional securing feature that is biased by magnetic force and is independent of the release mechanism.

[0189] The closure devices described herein can be configured to match appropriate engagement and disengagement forces for different applications. Different combinations, configurations, and attributes or features of the demonstrated embodiments herein may be combined or varied to create alternative embodiments not shown. These alternative embodiments are also protected herein and may be applied to virtually any article. All embodiments may also include branding features such as a logo, labeling or numbering, color, or aesthetic properties and are also included herein.

[0190] There have been described and illustrated herein embodiments of closure devices, fit systems using the closure and adjustment devices, and methods of using the closure devices. While particular embodiments of the invention have been described, it is not intended that the invention be limited thereto, as it is intended that the invention be as broad in scope as the art will allow and that the specification be read likewise. Thus, while specific scale models of embodiments have been disclosed, the embodiments and devices incorporating such concepts can be created at other sizes and relative dimensions. Also, while particular article types have been disclosed, it will be appreciated that other article types may be used as well. For allof the embodiments, the closure fit systems may be made from a plastic, metal, carbon fiber, or a combination of such materials. While various types of construction for the closure devices have been described, the embodiments are not intended to be limited to any particular construction or construction methods. Moreover, while particular configurations have been disclosed in reference to the closure devices, it will be appreciated that other configurations could be used as well. It will therefore be appreciated by those skilled in the art that yet other modifications could be made to the provided invention without deviating from its scope as claimed.

Claims

WHAT IS CLAIMED IS:

1. A closure device for connecting to first and second portions of one or more articles, including: a first mating part, including, a first body having an inner surface and an outer surface, a first magnetic retainer provided to the first body, a first retaining feature incorporated into the first mating part, and a first feature for attaching the first mating part to a first portion of the one or more article; and a second mating part discrete from the first mating part, including, a second body having an inner surface and an outer surface, a second magnetic retainer provided to the second body, a pair of legs projecting from a portion of the second body, a second retaining feature incorporated into the second mating part, and a second feature for attaching the second mating part to the second portion of the one or more articles, wherein the inner surface of the first body includes at least one cavity that is adapted to receive the second body in an overlapping configuration, and the first retaining feature is adapted to engage with the second retaining feature to rest in a fastened configuration, and in the fastened configuration, relative displacement of the first and second mating parts in at least one direction is blocked, and the first magnetic retainer and the second magnetic retainer are magnetically attracted to assist retaining engagement of the fastened configuration and to resist release from the fastened configuration.

2. The closure device according to claim 1, wherein one of the first and second mating parts includes a locking feature that is adapted to sustain the fastened configuration until manually released.

3. The closure device according 2, wherein the locking feature is biased away from inhibiting engagement of the first mating part relative to the second mating part until the first mating part has been engaged with the second mating part.

4. The closure device according to claim 3, wherein the locking feature provides a first magnetic field that forms a magnetic attraction to the other of the first and second mating parts, such that the magnetic attraction serves to pull the locking feature into a locking configuration upon engagement of the first and second mating parts.

5. The closure device according to claim 4, wherein the locking feature includes a second magnetic field that is parallel to the first magnetic field that serves to assist in retaining engagement and resisting release of the fastened configuration of the first and second mating parts.

6. The closure device according to claim 3, wherein the magnetic attraction that serves to assist in establishing and maintaining the fastened configuration between the first and second mating parts is arranged to provide more force assisting the parts to engage in the fastened configuration compared to the force inhibiting disengagement.

7. The closure device according to claim 1, wherein the first and second features are arranged along an x-axis, the pair of legs are adapted to be resiliently displaced along a y-axis, and the magnetic attraction is primarily oriented vertically along the z- axis.

8. The closure device according to claim 1, wherein the first mating part includes a third magnetic retainer, and the second mating part includes a fourth magnetic retainer, and the first and second magnetic retainers have poles that are oriented in a first direction, and the third and fourth magnetic retainers having poles that are oriented in a second direction parallel to the first and opposite in direction.

9. The closure device according 1, wherein the locking feature is independent of the release mechanism.

10. The closure device according to claim 9, wherein the locking feature is also independent of additional securing features.

11. The closure device according to claim 1, wherein at least one of the retaining features of the first mating part and the second mating part are formed by or includes teeth shaped projections.

12. The closure device according to claim 1, wherein, during engagement, the first and second retaining features cause the first and second mating parts to shift away from one another in relative position along an x-axis while the first and second mating parts come together along a z-axis, and then allow the first and second mating parts to come together along the x-axis to arrive in the fastened configuration with the first and second retaining features interlocked or engaged.

13. The closure device according to claim 1, wherein at least one of the first and second retaining features includes a feature to aid in orientation and / or ease of engagement of the mating parts to settle in the fastened configuration.

14. The closure device according to claim 1, wherein the retaining features are arranged to sustain the fastened configuration upon normal forces attempting to pull the first and second mating parts apart and all oblique forces applied to the first and second mating parts under normal use, until manual release.

15. The closure device according to claim 1, wherein the first and second retaining features are released from the fastened configuration by manually pinching the pair of legs together.

16. The closure device according to claim 1, wherein at least one of the first and second mating parts includes a textured surface or tactile indicator.

17. The closure device according to claim 1, wherein at least one of the first and second mating parts includes a visual indicator.

18. The closure device according to claim 1, wherein at least one of the first and second mating parts includes an auditory noise reducing feature.

19. The closure device according to claim 1, wherein the first and second bodies are substantially flat.

20. The closure device according to claim 1, wherein the first and second bodies are substantially curved or partially curved.

21. An article, comprising: a wearable article having first and second portions; and the closure device according to claim 1 coupling the first and second portions.

22. The article of claim 21, wherein the wearable article is one of clothing, footwear, pet wear, wristwear, a babycare accessory, protective gear, utility wear, sporting wear or sports gear, and an orthopedic or prosthetic device.

23. An article, comprising: a utilitarian article having first and second portions; and the closure device according to claim 1 coupling the first and second portions.

24. The article of claim 23, wherein the utilitarian article is one of a bag, sporting gear, storage device and a retainer.

Images