Helmet system and lacing system configured to secure helmet to head of wearer

Abstract

The utility model provides a safety helmet system and a lacing system configured to fix a safety helmet to the head of a wearer. The utility model further provides a separating device used together with the lacing system of the safety helmet. The separation device is coupled to a harness system of the safety helmet, and the harness system is coupled to a safety helmet housing. The separation device includes a housing and a releasable member cooperating with the housing. In a particular embodiment, the separation device further includes a latch. The latch includes a fastener. When the device is configured in the non-latched position, the fastener does not obstruct removal of the releasable component from the housing. When the device is configured in the latched position, the fastener obstructs removal of the releasable component from the housing, thereby increasing the magnitude of the force required to release the releasable component from the housing. In particular embodiments, the two configurations are implemented with a single device. In other particular embodiments, these configurations are implemented by separate devices.

Description

[0001] Cross-references to related patent applications

[0002] This application claims the benefit of and priority to U.S. Provisional Application No. 63 / 294,518, filed on December 29, 2021, and U.S. Provisional Application No. 63 / 286,863, filed on December 7, 2021, each of which is incorporated herein by reference in its entirety. Background Art

[0003] The present invention relates generally to the field of hard hat technology. The present invention specifically relates to a disconnect device for a hard hat strap system. Hard hats are typically used in construction or other environments / workplaces where head protection is required. For example, hard hats are used in environments where there is a risk of head injury and function to provide increased protection to the worker's head. Hard hats are also used in environments where there is a risk of large and / or heavy objects applying high release forces to the hard hat and / or to the underside of the hard hat in a generally lateral direction. Utility Model Content

[0004] One embodiment of the utility model relates to a helmet system, which includes: a helmet, which includes a shell formed of a rigid material; a plurality of concave couplers, which are connected to the shell; a plurality of straps, which are configured to fix the shell to the head of the wearer; a plurality of first male couplers, which include a first button, which is received in the orifice of the concave coupler, thereby connecting the first male coupler to the concave coupler; a plurality of second male couplers, which include a second button, which is received in the orifice of the concave coupler, thereby connecting the second male coupler to the concave coupler. Each second button includes a top surface facing away from the base of the corresponding concave coupler and facing the head of the wearer. The shell includes an outer surface and an inner surface, which defines a cavity whose size is determined to receive the head of the wearer. Each of the plurality of concave couplers includes a base and an orifice opposite to the base. Each first button includes a top surface facing away from the base of the corresponding female coupler and facing the wearer's head, and the first male coupler is disengaged from the female coupler when a first predetermined release force is applied to separate the first male coupler from the female coupler. The second male coupler is disengaged from the female coupler when a second predetermined release force is applied to separate the second male coupler from the female coupler, and the second predetermined release force is at least 50 Newtons greater than the first predetermined release force. Each of the plurality of straps is directly coupled to one of the first male couplers and one of the second male couplers, and one of the male couplers is removably coupled to one of the female couplers of the plurality of female couplers at a time, thereby coupling the corresponding strap to the helmet.

[0005] Another embodiment of the utility model relates to a helmet system, the helmet system comprising: a helmet, the helmet comprising a shell formed of a rigid material, the shell comprising an outer surface and an inner surface, the inner surface defining a cavity sized to receive a wearer's head; a plurality of concave couplers, the plurality of concave couplers coupled to the shell, each of the plurality of concave couplers comprising a base and an orifice opposite to the base; a plurality of straps, the plurality of straps being configured to secure the shell to the wearer's head; a plurality of first male couplers, the plurality of first male couplers comprising a first button, the first button being received in the orifice of the concave coupler, thereby coupling the first male coupler to the concave coupler; a plurality of second male couplers, the plurality of second male couplers comprising a second button, the second button being received in the orifice of the concave coupler, thereby coupling the second male coupler to the concave coupler. Each second button comprises a top surface facing away from the base of the corresponding concave coupler and a side surface extending from the top surface at a second obtuse angle and circumferentially surrounding the second button. The first button includes a top surface facing away from the base of the corresponding concave coupler and a side surface extending from the top surface at a first obtuse angle and circumferentially surrounding the first button. When a first predetermined release force is applied to separate the first convex coupler from the concave coupler, the first convex coupler is disengaged from the concave coupler. When a second predetermined release force is applied to separate the second convex coupler from the concave coupler, the second convex coupler is disengaged from the concave coupler, and the second predetermined release force is at least 50 Newtons greater than the first predetermined release force. Each of the plurality of laces is directly connected to one of the first convex couplers and one of the second convex couplers, and one of the convex couplers is detachably connected to one of the concave couplers in the plurality of concave couplers at a time, thereby connecting the corresponding lace to the helmet.

[0006] Another embodiment of the utility model relates to a lacing system configured to fix a helmet to a wearer's head. The lacing system includes: a plurality of lacings; a plurality of first male connectors, the plurality of first male connectors including a first button, the first button is received in the orifice of a female connector connected to the helmet, thereby connecting the first male connector to the female connector, each first button includes a top surface protruding through the orifice of the female connector and toward the wearer's head, and a side surface extending from the top surface at a first obtuse angle and circumferentially surrounding the first button; a plurality of second male connectors, the plurality of second male connectors including a second button, the second button is received in the orifice of the female connector, thereby connecting the second male connector to the female connector. Each second button includes a top surface facing the wearer's head and a side surface extending from the top surface at a second obtuse angle and circumferentially surrounding the second button. Each first button includes a top surface protruding through the aperture of the concave coupling and toward the head of the wearer, and a side surface extending from the top surface at a first obtuse angle and circumferentially surrounding the first button. When applying a first predetermined release force separating the first convex coupling from the concave coupling, the first convex coupling is disengaged from the concave coupling. Each second button includes a top surface facing the head of the wearer and a side surface extending from the top surface at a second obtuse angle and circumferentially surrounding the second button. When applying a second predetermined release force separating the second convex coupling from the concave coupling, the second convex coupling is disengaged from the concave coupling. The second predetermined release force is at least 50 Newtons greater than the first predetermined release force. Each of the plurality of laces is directly connected to one of the first convex couplings and one of the second convex couplings, and one of the convex couplings is once connected to a concave coupling in the plurality of concave couplings, thereby connecting the corresponding lace to the helmet.

[0007] Another embodiment of the utility model relates to a helmet having a shell and a strap system coupled to the shell. The strap system includes an upper strap, a lower strap and a separation device. The separation device includes a cover coupled to the shell. A releasable component cooperates with the shell. A first orifice is formed in the shell. The lower strap is coupled between the shell and the first orifice. A second orifice is formed in the releasable component. The lower strap is coupled between the second orifice and the shell. The lower strap is configured to pass under the chin of the user when worn. The separation device further includes a releasable component that cooperates with the shell. The shell defines a pair of downwardly inclined flanges. The releasable component includes a pair of mating forks, which are respectively mated with the pair of downwardly inclined flanges. When a predetermined release force is applied to the upper strap and the lower strap across the separation device, the pair of mating forks are configured to pull toward each other and release from a corresponding pair of mating flanges, thereby allowing the releasable component to be separated from the shell.

[0008] In some embodiments, the predetermined release force is between 150 Newtons and 250 Newtons.

[0009] In another specific embodiment, a helmet comprises a shell, an upper strap, a lower strap and a separator. The upper strap couples the separator to the shell at a first shell position, and the lower strap couples the separator to the shell at a second shell position. The lower strap is configured to pass under the user's chin when worn. The separator comprises a cover coupled to the shell. A releasable component cooperates with the shell. The shell defines a cavity. An inner wall defines the periphery of the cavity. A first downwardly inclined flange forms a first portion of the inner wall. A second downwardly inclined flange forms a second portion of the inner wall and is opposite to the first downwardly inclined flange. The releasable component comprises a first tine and a second tine. The first tine cooperates with the first downwardly inclined flange, and the second tine cooperates with the second downwardly inclined flange. When a predetermined release force is applied to the upper strap and the lower strap across the separation device, the first tine is configured to release from the first flange and the second tine is configured to release from the second flange, so that the upper strap and the lower strap are separated from each other.

[0010] In some specific embodiments, the predetermined release force is between 150 Newtons and 250 Newtons. In other specific embodiments, the cover is a latch mechanism. A buckle extends from the inner surface of the cover toward the housing. The housing forms a housing channel for receiving the buckle. The releasable component forms a releasable component channel aligned with the housing channel. The buckle can be pivoted from an unlatched position to a latched position. In the unlatched position, the buckle is substantially positioned within the housing channel. In the latched position, the buckle is at least partially pivoted into the releasable component channel. In some specific embodiments, the upper tether is a first upper tether, and the lower tether is connected to the housing by a second upper tether. In some specific embodiments, the lower tether includes a user-actuated buckle spaced apart from the separator.

[0011] In another specific embodiment, a helmet includes a shell, a release device and a strap. The release device has a releasable component that cooperates with a receiving port. The receiving port is connected to the shell. The releasable component includes a base, and the strap is connected to the base. An arm extends from the base. A button with a button periphery is connected to the arm. The button defines a chamfered edge around the button periphery. The receiving port forms an opening defined by the outer edge. The chamfered edge of the button cooperates with the outer edge. When a force greater than or equal to a predetermined release force is applied to the strap and the shell across the release device, the button is configured to release from the outer edge so that the strap is separated from the shell.

[0012] In some specific embodiments, the predetermined release force is between 150 Newtons and 250 Newtons. In other specific embodiments, the helmet has an interior surface and an exterior surface, and the receiving port is coupled to the interior surface. In more specific embodiments, the receiving port is integrally formed with the interior surface. In other specific embodiments, the receiving port is directly coupled to the interior surface so that there is no chin strap or strap material between the interior of the helmet and the receiving port. In other specific embodiments, the button is circular and the outer edge is an annular outer edge.

[0013] Alternative exemplary embodiments involve other features and combinations of features that may be generally recited.

[0014] Additional features and advantages will be set forth in the following detailed description, and those skilled in the art will readily appreciate from the description or will recognize in part these additional features and advantages by practicing the embodiments as described in the appended claims and written description and in the accompanying drawings. It should be understood that both the above general description and the following detailed description are exemplary.

[0015] The accompanying drawings are included to provide a further understanding and are incorporated in and constitute a part of this specification. The drawings illustrate one or more embodiments and together with the description serve to explain the principles and operation of the various embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which like reference numerals refer to like elements, and in which:

[0017] Figure 1A is a perspective view of a hard hat with a tether detachment device as seen from the left side according to an exemplary embodiment.

[0018] Figure 1B is a top view of a hard hat lacing system according to another exemplary embodiment.

[0019] Figure 2 is a perspective view of a helmet strap separation device according to another exemplary embodiment as viewed from the front.

[0020] Figure 3 According to an exemplary embodiment Figure 2 A perspective view of the helmet separation device as seen from the rear.

[0021] Figure 4 According to an exemplary embodiment Figure 2 A perspective view of the hard hat separation device from the front with the cover removed.

[0022] Figure 5According to an exemplary embodiment Figure 2 A perspective view of the helmet separation device as seen from the rear with the housing removed.

[0023] Figure 6 According to an exemplary embodiment Figure 2 Another perspective view of the helmet separation device from the rear with the housing removed.

[0024] Figure 7 According to an exemplary embodiment Figure 2 A front view of the housing of the helmet separation device.

[0025] Figure 8 According to an exemplary embodiment Figure 2 A front view of the hard hat separation device with the cover removed.

[0026] Fig. 9 According to an exemplary embodiment Figure 2 Another front view of the hard hat separation device with the cover removed.

[0027] Fig.10 is a perspective view of a helmet separating device according to another exemplary embodiment as viewed from the front.

[0028] Fig.11 According to an exemplary embodiment Fig.10 A perspective view of the helmet separation device as seen from the rear.

[0029] Fig.12 According to an exemplary embodiment Fig.10 A perspective view of the hard hat separation device from the front with the cover removed.

[0030] Fig.13 According to an exemplary embodiment Fig.10 A perspective view of the helmet separation device as seen from the rear with the housing removed.

[0031] Fig.14 According to an exemplary embodiment Fig.10 Another perspective view of the helmet separation device from the rear with the housing removed.

[0032] Fig.15 According to an exemplary embodiment Fig.10 A front view of the housing of the helmet separation device.

[0033] Fig.16 According to an exemplary embodiment Fig.10 A front view of the hard hat separation device with the cover removed.

[0034] Fig.17is a front view of a hard hat detachment device according to another exemplary embodiment with a cover removed.

[0035] Fig.18 According to an exemplary embodiment Fig.17 A rear view of the cover of the helmet separation device.

[0036] Fig.19 is a perspective view of a safety helmet with a separation device according to another exemplary embodiment as viewed from below.

[0037] Fig. 20 is a perspective view of a receiving port of a tether detachment device coupled to a housing of a hard hat according to an exemplary embodiment.

[0038] Fig.21 is a side view of a releasable component of a tether release device according to an exemplary embodiment.

[0039] Fig. 22 According to an exemplary embodiment Fig.21 The releasable member is shown in a perspective view from the rear.

[0040] Fig.23 According to an exemplary embodiment Fig.21 The releasable member is shown in a perspective view from the front.

[0041] Fig.24 According to an exemplary embodiment Fig.19 Helmets and including Fig. 20 The receiving port and Fig.21 Side view of the releasable components of the lacing system. DETAILED DESCRIPTION

[0042] Referring generally to the drawings, various embodiments of a breakaway device for use with a strap system for a hard hat or helmet are shown. The breakaway device is configured to release when a release force is applied to a hard hat strap coupled to the device. Release of the breakaway device allows the strap system to be released from the user's head in the event that a large or heavy object at or near head level moves and hooks onto the side or underside of the hard hat shell in a direction that causes the hard hat to be removed from the user's head.

[0043] In various embodiments, the detachment device is positioned within the strap system of the helmet or is directly coupled to the helmet shell. In specific embodiments, the detachment device includes at least two detachable components. When a force greater than or equal to a first predetermined force is applied to the upper strap and the lower strap across the detachment device or to the strap and the shell, the detachable components will detach from each other, thereby releasing the strap system from the user's head. In certain specific embodiments (see Figure 17 to Figure 18 and Figures 19 to 23), Applicants have designed a non-switchable breakaway mechanism for a hard hat strap. Applicants believe that this design provides a reliable release mechanism without the mechanical complexity of moving parts and switches present in other designs. In such an embodiment, if the user does not need / want a breakaway function (e.g., if the user is operating at an elevated height where the risk of ground impact caused by a fall is a concern and the risk of large or heavy objects moving close to the user's head is low), the user can replace the hard hat strap that includes the breakaway mechanism with a standard strap without the breakaway mechanism. Alternatively, the user can replace the breakaway device or a component of the breakaway device to convert from a low-force configuration to a high-force configuration.

[0044] In other embodiments discussed herein, the release mechanism has a switch or latch that allows the user to select whether the release mechanism is in a low-force configuration or a high-force configuration. In this design, applicants have designed a corresponding release mechanism that is believed to be easy to use and reliable in operation.

[0045] refer to Figure 1A , an operator is shown wearing a helmet or hard hat 10. As will be described, in various embodiments, the hard hat includes a shell 12 and a strap or tether system 14 coupled to the shell 12. The tether system 14 secures the shell 12 to the user's head. Figure 1B The lacing system 14 is shown in more detail. Figure 1A to Figure 1B , the lacing system 14 includes an upper lacing 16 coupled to the housing 12 and a lower lacing 18. The upper lacing 16 is coupled to the lower lacing 18 by a decoupling device (shown as decoupling device 20). Figure 1A As shown, upper tether 16 passes through one or more upper apertures 22 formed in separator 20, and lower tether 18 passes through one or more lower apertures 26 of separator 20. Lower tether 18 is additionally coupled to a female buckle component 24 of a standard lace buckle.

[0046] Figure 1A The perspective view shown in FIG. 1 is seen from the left side, that is, the right side of the hard hat 10 is shown. The left side (not shown) of the housing 12 is substantially the same as the right side of the housing 12. Figure 1B, the upper strap 17 is coupled to the left side of the shell (not shown). The upper strap 17 is coupled to the lower strap 19 by a standard strap connector 21, which does not include a component configured to separate or release under a specified or predetermined force applied to the strap system 14. The lower strap 19 is additionally coupled to a male buckle component 25 of a standard strap buckle. The female buckle component 24 and the male buckle component 25 releasably cooperate to secure the shell 12 to the user's head. Thus, the lower straps 18 and 19 together form a standard hard hat chin strap. When the user decides to remove the hard hat 10 at the end of use, the chin strap buckle formed by the female buckle component 24 and the male buckle component 25 allows the user to manually release the strap system 14. Thus, the user can remove the hard hat 10 at the end of use without releasing or otherwise actuating the separation device 20.

[0047] In some embodiments, a detachment device, such as detachment device 20, is positioned on the right side of the lacing system instead of the left side, and a standard connector, such as standard connector 21, is positioned on the left side of the lacing system instead of the right side. In other embodiments, detachment device 20 is positioned on the left side of the hard hat and the right side of the hard hat, and standard connector 21 is not used.

[0048] refer to Figure 1A , when a release force is applied to the strap system 14, the strap system 14 is pulled around the underside of the user's head. As a result, the upper strap 16 and the lower strap 18 apply opposing forces to the upper aperture 22 and the lower aperture 26, respectively. As will be described in more detail below, applying a release force greater than or equal to the predetermined release force to the strap system 14 causes the two or more detachable components of the detachment device 20 to release. Thus, the detachment device 20 allows the hard hat 10 to be safely removed from the user's head when a release force greater than or equal to the predetermined release force is applied.

[0049] refer to Figures 2 to 9 , various views of a separation device 120 are shown. Aside from the differences described herein, the separation device 120 is similar to the separation device 20. Figures 2 to 3, the separation device 120 includes a cover 130 coupled to a housing 132. The cover 130 defines one or more upper apertures, specifically two upper apertures 122. The upper apertures 122 correspond to one or more upper apertures, specifically two upper apertures 123 defined in the housing 132. As described above, the size of the upper apertures 122, 123 is determined and configured to receive one or more upper straps of the hard hat strap system. The separation device 120 also includes a latch or latch component 134 and a releasable component 136, which will be described in more detail below. The lower aperture 126 is defined in the releasable component 136. As described above, the size of the lower aperture 126 is determined and configured to receive the lower strap of the hard hat strap system.

[0050] refer to Figure 4 , shows the separation device 120, wherein the cover 130 is disengaged from the housing 132 and removed. A cavity 138 is formed in the housing 132. A portion of the latch 134 and a portion of the releasable member 136 are positioned within the cavity 138. An inner wall 139 defines the perimeter of the cavity 138. The releasable member 136 cooperates with at least a portion of the inner wall 139. As described in more detail below, the size of the cavity 138 is determined to allow the latch 134 to pivot within the cavity 138, specifically between a latched position and an unlatched position relative to the releasable member 136. The housing 132 further defines recesses 140 and 142. When the separation device 120 is assembled, the protrusions 144 and 146 of the cover 130 (in Figures 5 and 6 ) respectively cooperate with the notches 140 and 142 to combine with the gripping portion 150 to securely couple the cover 130 to the housing 132, thereby forming Figure 2 and Figure 3 The separation device 120 is shown.

[0051] refer to Figures 5 and 6 , shows the separation device 120, wherein the housing 132 is disengaged from the cover 130 and removed. The latch 134 includes a body 148 that is pivotally coupled to the cover 130 via a grip 150. Figures 5 and 6 As shown, the body 148 is annular and the gripping portion 150 is generally L-shaped. The gripping portion 150 extends through the interior of the annular body 148 and when the separation device 120 is assembled (eg, Figure 3 The grip 150 engages the flange 131 of the housing 132. The grip 150 allows axial rotation or pivoting of the body 148, but limits a large amount of translation of the body 148 relative to the cover 130 and the housing 132.

[0052] The handle 154 extends radially from the latch body 148. During use, the user, specifically the user's finger or thumb, actuates the handle 154 to move the latch 134 relative to the releasable member 136 in the unlatched position ( Figure 5) and latch position ( Figure 6 ) are pivoted between the latch body 148 and the handle 154. The latch arm 156 also extends radially from the latch body 148. The latch arm 156 is spaced apart from the handle 154. The catch 158 protrudes from the latch arm 156, thereby extending away from the cover 130. With reference to the releasable member 136, a pair of mating tines 160 extend from the base 162. The reinforcing tines 164 also extend from the base 162 in the direction of the latch 134. The protrusion 166 extends from the reinforcing tines 164 toward the cover 130. The reinforcing tines 164 are offset farther from the cover 130 than the mating tines 160, wherein the reinforcing tines 164 and the mating tines 160 extend from the base 162 respectively.

[0053] Figure 5 A first configuration of the disconnect device 120 is shown. In this configuration, the latch 134 is in an unlatched position relative to the releasable member 136. In the unlatched position, the latch 134 does not prevent the releasable member 136 from being released from the remainder of the disconnect device 120. In the first configuration, the releasable member 136 is released, removed or separated from the housing 132 under the application of a release force greater than or equal to a first predetermined release force. In a specific embodiment, the first predetermined release force is set by the EN397 standard, specifically, the first predetermined force is between 150 Newtons and 250 Newtons.

[0054] Figure 6 A second configuration of the release device 120 is shown. In this configuration, the latch 134 has been pivoted to the latched position relative to the releasable member 136. As described above, in the latched position, the latch 134 hinders the release of the releasable member 136 under the application of a release force. Specifically, in the latched position, the catch 158 of the latch 134 is at least partially positioned below the protrusion 166, so that the upper surface 168 of the catch 158 engages the lower surface 170 of the protrusion 166 during the application of the release force. The hindrance provided by the catch 158 in the latched position increases the amount of release force required to release the releasable member 136 from the housing 132. Therefore, in the second configuration, the releasable member is released, removed or separated from the housing 132 under the application of a release force greater than or equal to a second predetermined release force, which is greater than the first predetermined release force. In a specific embodiment, the second predetermined release force is set by the EN12492 standard, specifically, the second predetermined force is greater than or equal to 500 Newtons.

[0055] In specific embodiments, before the release force is applied, when the release device 120 is in the neutral position, the lower surface 170 is positioned above the upper surface 168, and there is no physical contact between the lower surface 170 and the upper surface 168. The lower surface 170 is then brought into contact with the upper surface 168 when the release force is applied to the hard hat. In other specific embodiments, the lower surface 170 rests against the upper surface 168, and thus the lower surface 170 and the upper surface 168 are in physical contact with each other in the neutral position before the release force is applied to the hard hat.

[0056] The applicant has found that the environment where the user operates at an elevated height (such as scaffolding engineering or rock climbing related adventure activities) requires a device configuration with a higher predetermined release force, such as the above-mentioned second configuration. When the ground impact force from falling is applied to the hard hat, this allows the hard hat to be protectively attached to the user's head. Alternatively, the applicant has found that the environment where the user is surrounded by a large number of large and / or heavy aerial objects at or near head level (such as some warehouse environments) requires a device configuration with a lower predetermined release force, such as the above-mentioned first configuration. If an object moving at head height hooks the side or lower side of the hard hat, this allows the hard hat to be released more easily before strangling the user. The separation device 120 allows the user to easily switch between the first safety configuration and the second safety configuration when the safety conditions change.

[0057] refer to Figures 7 to 9 , the housing 132 is shown in more detail. Figure 7 , a support recess 172 formed in the cavity 138 is shown. Figures 8 to 9 , the support recess 172 receives the reinforcing prong 164 and fixes the reinforcing prong 164 in the left and / or right direction to resist a large amount of flexure. Specifically, in the second configuration ( Fig. 9 ), when the latch 134 is in the latched position, the support recess 172 secures the reinforcement prong 164 to resist deflection that is large enough to cause the protrusion 166 to be substantially misaligned with the catch 158.

[0058] Reference again Figure 7 , the mating flange 174 forms a portion of the inner wall 139 of the cavity 138. The mating flange 174 is angled in a downwardly sloping direction toward a corresponding mating segment 176 of the inner wall 139. An angle 178 is defined between each corresponding mating flange 174 and mating segment 176. In a specific embodiment, the angle 178 is in the range of 120 degrees to 130 degrees. The mating flange 174 and the mating segment 176 are substantially complementary to the outer side of the mating prong 160. Figures 8 to 9The releasable member 136 is shown mated with the housing 132. The mating tines 160 of the releasable member 136 include mating projections 180, each of which defines a projection angle 182 with the remainder of the corresponding mating tines 160. The projection angle 182 is substantially the same as the angle 178. Thus, the mating projections 180 are substantially complementary to the corresponding mating flanges 174 and mate the releasable member 136 with the housing 132.

[0059] refer to Figure 8 , showing a first, lower release force configuration of the release device 120. When the latch 134 is in the unlatched position, the mating projections 180 remain mated with the corresponding mating flanges 174 until a force greater than or equal to the first predetermined release force is applied to the hard hat. Once the applied release force meets or exceeds the first predetermined release force, the mating prongs 160 begin to flex inwardly toward each other. The inward deflection of the mating prongs 160 withdraws the mating projections 180 from the corresponding mating flanges 174, thereby allowing the releasable member 136 to be released from the housing 132.

[0060] refer to Fig. 9 , a second higher release force configuration is shown. When the latch 134 is pivoted to the latched position, the latch 134 provides an obstruction to prevent the release of the releasable member. The described obstruction increases the amount of release force required to release the releasable member 136 from the housing 132. Specifically, in the second configuration, a higher amount of force is required to begin pulling the mating prongs 160 toward each other, and the mating protrusions 166 remain mated with the corresponding mating flanges 174 until a higher amount of force, specifically a second predetermined force, is applied to the hard hat.

[0061] refer to Figures 10 to 16 , various views of a separation device 220 are shown. Apart from the differences described herein, the separation device 220 is similar to the separation devices 20 and 120. Figure 10 to Figure 11, the separation device 220 includes a latch or latch cover 234 coupled to the housing 232. The housing 232 defines one or more upper apertures, specifically two upper apertures 222. As described above, the size of the upper aperture 222 is determined and configured to receive one or more upper straps of the helmet lacing system. As will be described in more detail below, the separation device 220 also includes a releasable member 236 that cooperates with the housing 232. The lower aperture 226 is defined in the releasable member 236. As described above, the size of the lower aperture 226 is determined and configured to receive the lower strap of the helmet lacing system. In other embodiments, the separation device 220 is oriented 180 degrees to the orientation of the illustrated embodiment. In such an embodiment, the aperture 226 is an upper aperture that is sized and configured to receive one or more upper straps of the helmet lacing system, and the aperture 222 is a lower aperture that is sized and configured to receive one or more lower straps of the helmet lacing system.

[0062] The latch cover 234 is pivotally coupled to the housing 232 via a boss 250. The boss 250 protrudes inwardly from the outer wall 233 of the housing 232. The boss 250 extends over and engages an outer surface 252 of the latch cover 234. The engagement of the boss 250 with the outer surface 252 permits axial rotation or pivoting of the latch cover 234, but limits a large amount of translation of the latch cover 234 relative to the housing 232. In addition, a handle 254 protrudes from the outer surface 252 of the latch cover 234. During use, a user, specifically a finger or thumb of the user, actuates the handle 254 to move the latch cover 234 relative to the releasable member 236 in an unlatched position ( Fig.13 ) and latch position ( Fig.14 ) between the two.

[0063] refer to Fig.12 , shows the separation device 220, wherein the latch cover 234 is disengaged from the housing 232 and removed. A cavity 238 is formed in the housing 232. A portion of the releasable member 236 is positioned within the cavity 238. An inner wall 239 defines a perimeter of the cavity 238. The releasable member 236 is engaged with at least a portion of the inner wall 239. Specifically, as will be described in more detail below, a pair of engaging prongs 260 extend from a base 262 of the releasable member 236, and the engaging prongs 260 engage with the inner wall 239.

[0064] In addition, a channel 290 is formed in the housing 232. When the separation device 220 is assembled, the channel 290 receives the fastener 258 (at Figure 13 to Figure 14 In addition, one or more channels 292 are formed in and through one or more portions of the separation device 220. Fig.12As shown, a channel 292 is formed in and through each of the mating forks 260. The channels 292 are aligned with the channels 290, respectively, so that when the catch 258 is from the latch position ( Fig.13 ) to the unlatched position ( Fig.14 ), the channels 292 can respectively receive the fasteners 258.

[0065] Figure 13 to Figure 14 The decoupling device 220 is shown with the housing disengaged from the latch cover 234 and removed. The catch 258 protrudes from the interior surface 253 of the latch cover 234. In a particular embodiment, the catch 258 is a rib formed integrally with the latch cover 234. Figure 13 to Figure 14 As shown, the fastener 258 extends over an arc length greater than 180 degrees and less than 360 degrees. When the separation device 220 is assembled, the fastener 258 is formed by the channel 290 (at Fig.12 254 and 255. In other embodiments, the latch 258 can be a discrete component coupled to the interior surface 253.

[0066] Fig.13 A first configuration of the separator 220 is shown. In this configuration, the latch 234 is in an unlatched position relative to the releasable member 236. Specifically, the catch 258 is removed from the channels 292 of the separator 220 and is not received by or positioned within any of the channels. Therefore, the catch 258 does not prevent the releasable member 236 from being released from the housing 232. In the first configuration, the releasable member 236 is released, removed, or separated from the housing 232 upon application of a release force greater than or equal to a first predetermined release force.

[0067] Fig.14 A second configuration of the release device 220 is shown. In this configuration, the latch 234 has been pivoted to the latched position relative to the releasable member 236. As described above, in the latched position, the latch 234 hinders the release of the releasable member 236 under the application of a release force. Specifically, in the latched position, the catch 258 passes through at least a portion of each of the channels 292 of the mating tines 260. During the application of the release force, the interior surface 268 of the catch 258 engages the corresponding lower surface 270 of each channel 292. The hindrance provided by the catch 258 in the latched position increases the amount of release force required to release the releasable member 236 from the housing 232. Therefore, in the second configuration, the releasable member is released, removed or separated from the housing 232 under the application of a release force greater than or equal to a second predetermined release force, which is greater than the first predetermined release force.

[0068] refer to Fig.15, showing the housing 232 in more detail. The mating flange 274 forms a portion of the inner wall 239 of the cavity 238. The mating flange 274 is angled in a downwardly sloping direction toward a corresponding mating segment 276 of the inner wall 239. An angle 278 is defined between each corresponding mating flange 274 and mating segment 276. In a specific embodiment, the angle 178 is in the range of 105 degrees to 130 degrees. The mating flange 274 and the mating segment 276 are substantially complementary to the outer side of the mating fork 260. Reference Fig.16 , a releasable member 236 is shown mating with the housing 232. The mating tines 260 of the releasable member 236 include mating projections 280, each of which defines a projection angle 282 with the remainder of the corresponding mating tines 260. The projection angle 282 is substantially the same as the angle 278. Thus, the mating projections 280 are substantially complementary to the corresponding mating flanges 274 and mate the releasable member 236 with the housing 232.

[0069] The mating protrusions 180 remain mated with the corresponding mating flanges 174 until a force greater than or equal to a predetermined release force (specifically, a first predetermined release force in the first configuration and a second predetermined release force in the second configuration) is applied to the hard hat. Once the applied release force meets or exceeds the predetermined release force, the mating prongs 260 begin to flex inwardly toward each other. The inward deflection of the mating prongs 260 withdraws the mating protrusions 280 from the corresponding mating flanges 274, thereby allowing the releasable member 236 to be released from the housing 232.

[0070] In various embodiments such as the separation device 120 and the separation device 220, the first and second configurations described above are achieved by a single separation device. In other specific embodiments, the first and second configurations are achieved by two separate separation devices. Such embodiments may benefit, for example, a user who uses one configuration significantly more frequently than another, and may prefer a simpler separation device with fewer mechanical parts, particularly if such a device is easily replaceable with an alternative separation device that provides an alternative configuration.

[0071] In certain specific embodiments, the first lacing system is coupled to the outer shell of the helmet. The first lacing system includes a first detachment device that operates in a first, lower release force configuration. When the user alternatively wishes to use a detachment device that operates in a second, higher release force configuration, the user detaches the first lacing system from the outer shell of the helmet and couples the second lacing system to the outer shell. The second lacing system includes a second detachment device that operates in a second, higher release force configuration. In other specific embodiments, the first detachment device is detached from the upper and lower lacings of a given lacing system, respectively, and the second detachment device is then coupled to the corresponding identical upper and lower lacings of the given lacing system.

[0072] Figure 17 to Figure 18 Various components of an embodiment of a separation device configured to operate in a first, lower release force configuration are shown. In addition to the differences described herein, Figure 17 to Figure 18 The low force release device shown in FIG. 2 is substantially identical to release device 220 having substantially identical components that perform substantially identical functions.

[0073] refer to Fig.18 , cover 334 is substantially the same as cover 234, except that cover 334 is not a latch mechanism. Specifically, no fasteners protrude from or are coupled to interior surface 353. Similarly, reference Fig.17 , housing 332 is substantially identical to housing 232, except that passage 290 is not defined for receiving a catch. Similarly, releasable member 336 is substantially identical to releasable member 236, except that passage 292 is not defined for receiving a catch. Thus, releasable member 336 is released from housing 332 in the same manner as releasable member 236 is released from housing 232 when disconnect device 220 is configured in the first configuration (as described in more detail above). Because the low-force disconnect device does not include a latch mechanism, the low-force disconnect device does not transition to a second, higher-force configuration. Thus, the low-force disconnect device is less mechanically complex, and specifically includes fewer moving parts, than the latch disconnect devices 120 and 220 described above.

[0074] If the user wishes to operate without the breakaway feature, for example, if operating at elevated altitudes where the risk of falling outweighs the risk of the helmet being caught on an object moving at or near head level, the user can replace the lanyard system that includes the low-force breakaway device with a lanyard system that does not include the low-force breakaway device, such as a lanyard system that includes two standard connectors, such as standard connector 21 ( Figure 1B ), one on each respective side of the helmet. Alternatively, the user can replace the low force release device with a standard connector 21 ( Figure 1B ), specifically, the low-force breakaway device can be detached from the corresponding upper and lower tethers connected to the low-force breakaway device, and the standard connector can be connected to the corresponding same upper and lower tethers.

[0075] refer to Fig.19, depicting a non-adjustable breakaway device directly coupled to a housing 412 of a hard hat 410, shown as a low-force breakaway device 420. In contrast to some other breakaway devices discussed herein, the device 420 provides a preset or predetermined breakaway force and does not include a switch component that allows a user to make force adjustments. The housing 412 has an inner surface 413 and an outer surface 415. In a specific embodiment, the breakaway device 420 is coupled to the inner surface 413. The lace 414 is coupled to the breakaway device 420. When a force greater than or equal to a predetermined release force is applied to the lace 414 and the housing 412 across the breakaway device 420, the breakaway device is configured to release, such that the lace 414 is released from the housing 412. In a specific embodiment, the predetermined release force is set by the EN397 standard, specifically, the predetermined force is between 150 Newtons and 250 Newtons.

[0076] refer to Fig. 20 , a female coupler of a separation device coupled to an inner surface 413 of a hard hat shell 412 is shown, shown as a receiving port 432. In a specific embodiment, one or more of the receiving ports 432 (e.g., all of the plurality of receiving ports 432) are integrally formed with the shell 412 and protrude into the interior of the shell 412. In various such embodiments, the two components are integrally formed meaning that the two components are formed from a single, integral, continuous, contiguous piece of material (e.g., a molded polymer material). For example, in various embodiments, the receiving port 432 and the hard hat shell 412 are integrally formed so that the receiving port 432 and the hard hat shell 412 are formed from a single, integral, continuous, contiguous piece of material (e.g., a molded polymer material). The receiving port 432 forms an orifice 438 defined by an outer edge 439. In a specific embodiment, the outer edge 439 is an annular outer edge.

[0077] refer to Figure 21 to Figure 23 , showing a male coupling, shown as a releasable member 436. The releasable member 436 is configured to engage with the receiving port 432 (at Fig. 20 The releasable member 436 includes a base 462 that defines a portion configured to receive a helmet strap or chin strap (such as strap 414, in Fig.19 The opening 426 is shown in FIG. 4A and the arm 464 extends from the base 462, and the button 466 is coupled to the arm 464. A side surface 474 is defined around the periphery of the button 466. In a specific embodiment, the side surface 474 forms an obtuse angle 490 with the arm 464 (see FIG. 4B ). Fig.21 ). When the releasable member 436 is engaged with the receiving port 432, the side surface 474 is engaged with the outer edge 439. When a force greater than or equal to a predetermined release force is applied across the engaged separation device, the button 466 is configured to release from the outer edge 439, so that the releasable member 436 is separated from the receiving port 432. In a specific embodiment, the button 466 is round.

[0078] In various embodiments, when the releasable member 436 is engaged with the receiving port 432, the button 466 protrudes through the aperture 438 toward the interior of the housing 412. Applicants have discovered that when the receiving port is coupled to the interior of the housing 412 (e.g., Fig.19 ), this orientation facilitates sliding the releasable member into and out of the receiving port 432. As described above, applicants have also found that the chamfer of the side surface 474 facilitates the insertion and release of the releasable member 436 from the receiving port 432.

[0079] refer to Fig.24 In various embodiments, the hard hat system 408 includes a hard hat, such as hard hat 410, and a plurality of female couplers, shown as being coupled to the port 432 of the hard hat. In various embodiments, the hard hat system 408 includes a lacing system 510, which includes a plurality of lacing straps 512, wherein a plurality of first male couplers, shown as releasable members 436, and a plurality of second male couplers, shown as releasable members 520, are coupled to the lacing straps 512. The lacing system 510 is configured to secure the shell 412 to the wearer's head via the lacing straps 512. In various embodiments, each of the plurality of straps 512 is directly coupled to one of the first releasable components 436 and one of the second releasable components 520, and one of these releasable components (e.g., the first releasable component 436 or the second releasable component 520) is removably coupled to one of the plurality of concave connectors (e.g., the port 432) at a time, thereby coupling the corresponding strap 512 to the safety helmet 410.

[0080] The hard hat 410 includes a shell 412 formed of a rigid material, and the shell 412 includes an outer surface 415 and an inner surface 413, the inner surface defining a cavity 422 sized to receive the wearer's head. In various embodiments, each of the ports 432 (e.g., female couplers) is coupled to the shell 412 (e.g., such as being integrally molded with the shell), and each of the ports 432 includes a base 434 and an orifice 438 opposite the base 434.

[0081] refer to Figure 20 to Figure 24, a plurality of first male couplers (shown as releasable members 436) include a first button 466 received within an aperture of a female coupler, thereby coupling the releasable member 436 to the female coupler. In various embodiments, each first button 466 includes a top surface 472 facing away from the base 434 of the corresponding female coupler and facing the wearer's head, and a side surface 474 extending from the top surface 472 at a first obtuse angle 492, the side surface 474 circumferentially surrounding the first button 466. In various embodiments, when a first predetermined release force is applied to separate the first male coupler from the female coupler, the first releasable member 436 disengages from the female coupler (e.g., port 432).

[0082] In various embodiments, for each of the plurality of first releasable members 436, a first button 466 extends from the first arm 464, which biases the first button 466 through the aperture 438 of the port 432 when the first releasable member 436 is coupled to the corresponding port 432. Similarly, for each of the plurality of second male couplers 520, a second button extends from the second arm, which biases the second button through the aperture of the port 432 when the second releasable member 520 is coupled to the corresponding female coupler.

[0083] refer to Fig.24 , a plurality of second male couplers (shown as second releasable members 520) are also coupled to the tether 512. The second releasable members 520 are identical or similar in function and structure to the first releasable members 436, unless otherwise noted. In particular, the second releasable members 520 disengage from the female coupler (e.g., port 432) when a second predetermined release force is applied to separate the first male coupler from the female coupler. In various embodiments, the second predetermined release force is at least 50 Newtons greater than the first predetermined release force, and more specifically at least 150 Newtons greater, and more specifically at least 250 Newtons greater.

[0084] In various embodiments, the first releasable member 436 is painted a first color and the second releasable member 520 is painted a second color that is different from the first color. This differentiated color scheme allows the user to quickly select the appropriate color for their current working environment and also allows others to quickly check which couplers are connected and thereby determine whether the wearer has selected the correct coupler corresponding to the current working environment.

[0085] In various embodiments, the apertures 438 of the plurality of female couplers (e.g., ports 432) define a circular shape that receives the first button 466 (of the first releasable member 436) and the second button (of the second releasable member 520). In various embodiments, the first buttons 466 of the plurality of first male couplers (e.g., first releasable members 436) define a circular shape that is received in one of the apertures of the female coupler (e.g., ports 432). In various embodiments, the second buttons of the plurality of second male couplers (e.g., second releasable members 520) define a circular shape that is received in one of the apertures of the female coupler (e.g., ports 432).

[0086] In various embodiments, the plurality of ports 432 coupled to the housing 412 includes at least four ports 432. In various embodiments, the plurality of first releasable members 436 includes at least four first releasable members 436, and the plurality of second releasable members 520 includes at least four second releasable members 520. In various embodiments, the first releasable members 436 coupled to the strap 512 are twice as many as the ports 432 coupled to the housing 412, and the second releasable members 520 coupled to the strap 512 are twice as many as the ports 432 coupled to the housing 412.

[0087] It should be understood that the drawings show exemplary embodiments in detail, and it should be understood that the present application is not limited to the details or methods set forth in the specification or shown in the drawings. It should also be understood that the terminology is for descriptive purposes only and should not be considered as limiting.

[0088] In view of this specification, further modifications and alternative embodiments of various aspects of the utility model will be obvious to those skilled in the art. Therefore, this specification should be interpreted as being only illustrative. The construction and arrangement shown in different exemplary embodiments are only illustrative. Although only several embodiments are described in detail in this disclosure, many modifications (for example, the size, size, structure, shape and proportion, parameter value, installation arrangement, use of materials, color, orientation, etc. of various elements) can be made without substantially departing from the novel teaching content and advantages of the subject described herein. Some elements shown as being integrally formed can be constructed of multiple parts or elements, the position of the elements can be reversed or otherwise changed, and the nature or quantity or position of discrete elements can be changed or changed. According to alternative embodiments, the order or sequence of any process, logical algorithm or method steps can be changed or reordered. Without departing from the scope of the utility model, other substitutions, modifications, changes and omissions can also be made to the design, operating conditions and arrangement of various exemplary embodiments. In addition, as used herein, the article "one" is intended to include one or more parts or elements, and is not intended to be interpreted as only one.

[0089] A plurality of different embodiments of the present invention relate to any combination of any features, and any such feature combination may be claimed in this application or in future applications. Any feature, element or component of any exemplary embodiment discussed above may be used alone or in combination with any feature, element or component of any other embodiment discussed above.

Claims

1. A helmet system, characterized in that: The helmet system includes: a hard hat comprising an outer shell formed of a rigid material, the outer shell including an outer surface and an inner surface defining a cavity sized to receive a wearer's head; a plurality of female couplers coupled to the housing, each of the plurality of female couplers comprising a base and an aperture opposite the base; a plurality of straps configured to secure the shell to the wearer's head; a plurality of first male couplers, the plurality of first male couplers comprising a first button received within an aperture of a female coupler to couple the first male coupler to the female coupler, each first button comprising a top surface facing away from a base of the respective female coupler and facing the wearer's head, wherein the first male coupler disengages from the female coupler when a first predetermined release force is applied to separate the first male coupler from the female coupler; and a plurality of second male couplers, the plurality of second male couplers comprising a second button received within an aperture of a female coupler to couple the second male coupler to the female coupler, each second button comprising a top surface facing away from a base of the respective female coupler and facing toward a head of the wearer, wherein the second male coupler disengages from the female coupler upon application of a second predetermined release force separating the second male coupler from the female coupler, wherein the second predetermined release force is at least 50 Newtons greater than the first predetermined release force; Wherein, each of the plurality of straps is directly connected to one of the first male connectors and one of the second male connectors, and one of the male connectors is detachably connected to one of the plurality of female connectors at a time, thereby connecting the corresponding strap to the helmet.

2. The helmet system according to claim 1, characterized in that: The plurality of female couplers are integrally molded with the housing.

3. The helmet system according to claim 1, characterized in that: The apertures of the plurality of female couplers define a circular shape that receives the first buttons and the second buttons.

4. The helmet system according to claim 1, characterized in that: The first button of the first plurality of male couplers defines a circular shape that is received in one of the apertures of the female couplers.

5. The helmet system according to claim 4, characterized in that: The second buttons of the second plurality of male couplers define a circular shape that is received in one of the apertures of the female couplers.

6. The helmet system according to claim 1, wherein: For each of the plurality of first male couplers, the first button extends from a first arm, and when the first male coupler is coupled to the female coupler, the first arm biases the first button through the aperture of the corresponding female coupler, and for each of the plurality of second male couplers, the second button extends from a second arm, and when the second male coupler is coupled to the female coupler, the second arm biases the second button through the aperture of the corresponding female coupler.

7. The helmet system according to claim 1, characterized in that: The plurality of female couplers includes at least four female couplers.

8. The helmet system according to claim 7, characterized in that: The plurality of first male couplers includes at least four first male couplers, and wherein the plurality of second male couplers includes at least four second male couplers.

9. The helmet system according to claim 8, characterized in that: The plurality of female couplers are integrally molded with the housing.

10. The helmet system according to claim 1, wherein: A first male coupler coupled to the straps is twice as large as a female coupler coupled to the housing, wherein a second male coupler coupled to the straps is twice as large as a female coupler coupled to the housing.

11. A safety helmet system, characterized in that: The helmet system includes: a hard hat comprising an outer shell formed of a rigid material, the outer shell including an outer surface and an inner surface defining a cavity sized to receive a wearer's head; a plurality of female couplers coupled to the housing, each of the plurality of female couplers comprising a base and an aperture opposite the base; a plurality of straps configured to secure the shell to the wearer's head; a plurality of first male couplers, the plurality of first male couplers comprising a first button received within an aperture of a female coupler to couple the first male coupler to the female coupler, the first button comprising a top surface facing away from a base of the corresponding female coupler and a side surface extending from the top surface at a first obtuse angle and circumferentially surrounding the first button, wherein the first male coupler disengages from the female coupler when a first predetermined release force is applied to separate the first male coupler from the female coupler; and a plurality of second male couplers, the plurality of second male couplers comprising a second button received within an aperture of a female coupler to couple the second male coupler to the female coupler, each second button comprising a top surface facing away from a base of a corresponding female coupler and a side surface extending from the top surface at a second obtuse angle and circumferentially surrounding the second button, wherein the second male coupler disengages from the female coupler upon application of a second predetermined release force separating the second male coupler from the female coupler, wherein the second predetermined release force is at least 50 Newtons greater than the first predetermined release force; Wherein, each of the plurality of straps is directly connected to one of the first male connectors and one of the second male connectors, and one of the male connectors is detachably connected to one of the plurality of female connectors at a time, thereby connecting the corresponding strap to the helmet.

12. The helmet system according to claim 11, characterized in that: For each of the plurality of first male couplers, the first button extends upward from an upper surface of a first arm, the first arm biasing the first button through an aperture of a female coupler, wherein a side surface of the first button defines a third obtuse angle relative to the upper surface of the first arm, and for each of the plurality of second male couplers, the second button extends from a second arm, the second arm biasing the second button through an aperture of the corresponding female coupler when the second male coupler is coupled to the female coupler, wherein a side surface of the second button defines a fourth obtuse angle relative to the upper surface of the second arm.

13. The helmet system according to claim 12, wherein: The plurality of female couplers are integrally molded with the housing.

14. The helmet system according to claim 11, wherein: The plurality of female couplers are integrally molded with the housing.

15. The helmet system according to claim 11, wherein: The apertures of the plurality of female couplers define a circular shape that receives the first buttons and the second buttons.

16. The helmet system according to claim 11, wherein: The first buttons of the first plurality of male couplers define a circular shape that is received in one of the apertures of the female couplers, and wherein the second buttons of the second plurality of male couplers define a circular shape that is received in one of the apertures of the female couplers.

17. The helmet system according to claim 11, wherein: The first male coupler connected to the straps doubles as the female coupler connected to the housing.

18. A strap system configured to secure a helmet to a wearer's head, characterized in that: The lacing system includes: Multiple lacing; a plurality of first male couplers, the plurality of first male couplers comprising a first button received within an aperture of a female coupler coupled to the hard hat, thereby coupling the first male coupler to the female coupler, each first button comprising a top surface protruding through the aperture of the female coupler and toward the wearer's head, and side surfaces extending from the top surface at a first obtuse angle and circumferentially surrounding the first button, wherein the first male coupler disengages from the female coupler when a first predetermined release force is applied to separate the first male coupler from the female coupler; and a plurality of second male couplers, the plurality of second male couplers comprising a second button received within an aperture of the female coupler to couple the second male coupler to the female coupler, each second button comprising a top surface facing the wearer's head and a side surface extending from the top surface at a second obtuse angle and circumferentially surrounding the second button, wherein the second male coupler disengages from the female coupler when a second predetermined release force is applied to separate the second male coupler from the female coupler, wherein the second predetermined release force is at least 50 Newtons greater than the first predetermined release force; Wherein, each of the plurality of straps is directly connected to one of the first male connectors and one of the second male connectors, and one of the male connectors is connected to one of the plurality of female connectors at a time, thereby connecting the corresponding strap to the helmet.

19. The lacing system according to claim 18, characterized in that The first buttons of the first plurality of male couplers define a circular shape that is received in one of the apertures of the female couplers, and wherein the second buttons of the second plurality of male couplers define a circular shape that is received in one of the apertures of the female couplers.

20. The lacing system of claim 18, wherein: For each of the plurality of first male couplers, the first button extends upward from an upper surface of a first arm, the first arm biasing the first button through an aperture of a female coupler, wherein a side surface of the first button defines a third obtuse angle relative to the upper surface of the first arm, and for each of the plurality of second male couplers, the second button extends from a second arm, the second arm biasing the second button through an aperture of the corresponding female coupler when the second male coupler is coupled to the female coupler, wherein a side surface of the second button defines a fourth obtuse angle relative to the upper surface of the second arm.

Images