Hitch connection device

Abstract

A hitch-mounted load carrier includes a connection member and a locking mechanism. The connection member is configured to be inserted into a hitch receiver. The locking mechanism is coupled to the connection member and is configured to secure the connection member inside the hitch receiver. The locking mechanism includes a first actuator, a second actuator, a shaft, and a jaw assembly. The first actuator is disposed in an interior of the connection member. The second actuator is opposite the first actuator and is disposed in the interior of the connection member. The shaft is configured to move the first actuator and the second actuator. The jaw assembly includes a first contact member and a second contact member. The first contact member and the second contact member are configured to engage an inner surface of the hitch receiver.

Description

[0001] Cross-reference with related applications This application claims priority to U.S. Provisional Application No. 63 / 783,624, filed April 4, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to attachment devices. More specifically, embodiments of this disclosure relate to a mountable load-bearing frame, such as a bicycle rack, having a locking mechanism to secure the load-bearing frame to a vehicle mount. Background Technology

[0003] Equipment used to carry gear on vehicles can be used to transport gear from one location to another. In some examples, load carriers can be securely and conveniently attached to the vehicle via hitchs, which are typically attached to the rear of the vehicle. Various attachment mechanisms (e.g., wedges) help secure the load carrier to the vehicle hitchs. However, these mechanisms may lose torque over time (considered torque loss), or the hitchs may become internally damaged or deformed over time, requiring frequent manual re-secured by the user.

[0004] Safely transporting sports equipment is a concern for many sports enthusiasts. For example, if a bicycle rack becomes disconnected from a vehicle while being driven, it can damage the rack and the transported bicycle, and endanger the safety of other drivers. One way to secure the rack to a vehicle is to insert a pin through holes in both the hook-and-loop receiver and the load-bearing frame's connecting member. Depending on the strength of the person attaching the rack, the weight of the rack, and other environmental conditions, securing the rack with a pin can be difficult. The various embodiments disclosed herein enable pins to easily and securely attach the rack to the hook-and-loop. Summary of the Invention

[0005] Therefore, it is necessary to provide: a locking mechanism that can securely connect the load carrier to the vehicle's hook-up and maintain torque between the locking mechanism and the hook-up receiver; and a retaining pin that can be repeatedly positioned in the pin hole of the hook-up receiver.

[0006] In some embodiments, the hook-mounted load carrier includes a connecting member and a locking mechanism. In some embodiments, the connecting member is configured to insert into the hook-mounted receiver. In some embodiments, the locking mechanism is coupled to the connecting member and configured to secure the connecting member inside the hook-mounted receiver. In some embodiments, the locking mechanism includes a first actuator, a second actuator, a shaft, and a clamping assembly. In some embodiments, the first actuator is disposed inside the connecting member. In some embodiments, the second actuator is opposite to the first actuator and disposed inside the connecting member. In some embodiments, the shaft is configured to move at least one of the first and second actuators. In some embodiments, the clamping assembly includes a first contact member and a second contact member. In some embodiments, the first and second contact members are configured to engage the inner surface of the hook-mounted receiver.

[0007] In some embodiments, a first surface of the clamp assembly contacts a first actuator, and a second surface of the clamp assembly contacts a second actuator. In some embodiments, the first and second actuators are configured to translate the clamp assembly. In some embodiments, at least one of the first and second surfaces has an arcuate shape.

[0008] In some embodiments, the clamp assembly includes a first clamp and a second clamp. In some embodiments, the first clamp moves independently of the second clamp in a first direction. In some embodiments, one of the first clamp or the second clamp includes a protrusion, and the other of the first clamp and the second clamp includes a recess configured to receive the protrusion. In some embodiments, the first clamp and the second clamp move together when the protrusion engages the recess.

[0009] In some embodiments, the first clamp includes a first sidewall, and the second clamp includes a second sidewall configured to engage the first sidewall and transfer or receive a load from the second clamp to the first clamp. In some embodiments, the clamp assembly includes a bridging member connecting the first and second contact members.

[0010] In some embodiments, the locking mechanism is arranged between opposite corners of the connecting members. In some embodiments, a first orifice and a second orifice are formed through the connecting members. In some embodiments, a first contact member extends through the first orifice, and a second contact member extends through the second orifice.

[0011] In some embodiments, the hook-mounted load carrier includes a spring that is coupled to the clamp assembly and contacts the inner surface of the connecting member. In some embodiments, the spring is configured to bias the clamp assembly away from the inner surface of the hook-mounted receiver.

[0012] In some embodiments, the shaft includes a first threaded portion and a second threaded portion. In some embodiments, the first threaded portion is coupled to a first actuator and configured to move the first actuator in a first direction. In some embodiments, the second threaded portion is coupled to a second actuator and configured to move the second actuator in a second direction opposite to the first direction.

[0013] In some embodiments, the first actuator includes a slot configured to receive a clamp assembly. In some embodiments, the slot includes an inclined surface configured to engage the clamp assembly.

[0014] In some embodiments, the hook-mounted load carrier includes a connecting member and a locking mechanism. In some embodiments, the connecting member is configured to insert into the hook-mounted receiver. In some embodiments, the locking mechanism is coupled to the connecting member and configured to secure the connecting member inside the hook-mounted receiver. In some embodiments, the locking mechanism includes a first actuator, a second actuator, an actuator plate, a shaft, and a clamp assembly. In some embodiments, the first actuator is disposed inside the connecting member. In some embodiments, the second actuator is opposite to the first actuator and disposed inside the connecting member. In some embodiments, the actuator plate is coupled to the first actuator and configured to move the first actuator. In some embodiments, the shaft is configured to move at least one of the second actuator and the actuator plate. In some embodiments, the clamp assembly is movably engaged with the first and second actuators. In some embodiments, the clamp assembly is configured to engage an inner surface of the hook-mounted receiver.

[0015] In some embodiments, the actuator plate extends from the first actuator toward the shaft and overlaps with a portion of the clamp assembly and a portion of the second actuator. In some embodiments, the shaft is rotatably coupled to the second actuator and a fastener. In some embodiments, the fastener is coupled to the actuator plate. In some embodiments, when the shaft rotates, the second actuator moves in a first direction, and the actuator plate moves in a second direction opposite to the first direction.

[0016] In some embodiments, the actuator plate includes a slot configured to receive a protrusion extending from the clamping assembly. In some embodiments, the protrusion moves within the slot to control movement of the clamping assembly. In some embodiments, the slot extends at an angle relative to the longitudinal direction of the shaft.

[0017] In some embodiments, the hook-mounted load-bearing frame includes a connecting member and a retaining pin. In some embodiments, the connecting member includes an insertable end configured to insert into a hook-mounted receiver. In some embodiments, the retaining pin assembly includes a pin body movably coupled to the connecting member at a fixed distance from the insertable end of the connecting member. In some embodiments, the pin body includes a fixed end and a free end configured to extend through aligned openings formed in the connecting member and the hook-mounted receiver. In some embodiments, the pin body is biased to a locked position in which the free end of the pin body is disposed within the interior space of the hook-mounted receiver.

[0018] In some embodiments, the retaining pin assembly includes a load holder coupled to the connecting member. In some embodiments, the pin body is rotatably coupled to the load holder. In some embodiments, the load holder is configured to transfer a vertical load from the pin body to the connecting member when the pin body is operated as a carrying handle for attaching a mounted load carrier.

[0019] In some embodiments, the retaining pin assembly includes a spring coupled to the pin body and the load holder. In some embodiments, the spring is configured to bias the body into a locked position. In some embodiments, the spring is a torsion spring. In some embodiments, the retaining pin assembly includes a housing. In some embodiments, a portion of the pin body, the load holder, and the spring are disposed within the housing.

[0020] In some embodiments, the free end of the pin body includes a hook configured to engage with an aperture of a hook-and-loop receiver. In some embodiments, the pin body is a non-linear, elongated body.

[0021] In some embodiments, the pin body is formed of a sheet of metal and configured to deflect to insert and remove a free end into an orifice. In some embodiments, the pin body is rotatably coupled to a connecting member. In some embodiments, the retaining pin assembly includes an elongated fastener coupled to the connecting member and a spring coupled to the elongated fastener. In some embodiments, the pin body is movably coupled to the elongated fastener and biased away from the connecting member along the elongated fastener by the spring. In some embodiments, the free end of the pin body includes a bolt configured to extend through an orifice in the connecting member and the hook-and-loop receiver.

[0022] In some embodiments, the torque limiting handle includes a shaft, a handle body, a control ring, and a torque arm. In some embodiments, the shaft is coupled to a locking mechanism. In some embodiments, the control ring is disposed in the handle body and coupled to the shaft. In some embodiments, the torque arm is coupled to the handle body and biased to engage with the control ring. In some embodiments, the torque arm prevents the control ring from rotating when a first torque is applied to the shaft. In some embodiments, the torque arm allows the control ring to rotate when a second torque greater than the first torque is applied to the shaft.

[0023] In some embodiments, the control ring includes a recess that receives the protruding end of the torque arm. In some embodiments, the recess is shaped to retain the protruding end within the recess when a first torque is applied to the shaft, and to eject the protruding end from the recess when a second torque is applied to the shaft. In some embodiments, the recess is shaped as an arc having multiple radii.

[0024] In some embodiments, the first side of the recess extends substantially perpendicular to the periphery of the control ring. In some embodiments, the second side of the recess forms an arc that merges with the periphery of the control ring.

[0025] In some embodiments, the torque limiting handle includes a ratchet mechanism coupled to a shaft and a control ring. In some embodiments, the torque limiting handle includes a spring that extends along the length of the handle and is coupled to the handle body and the torque arm.

[0026] In some embodiments, the torque arm includes a first torque arm and a second torque arm configured to engage a control ring. In some embodiments, the control ring includes a plurality of recesses formed in pairs on opposite sides of the control ring. In some embodiments, the first torque arm and the second torque arm engage two of the plurality of recesses.

[0027] Specific implementations of any of the above-described techniques may include systems, methods, processes, devices, and / or apparatuses. Details of one or more specific implementations are set forth in the accompanying drawings and the following description. Other features will be apparent from the description, the drawings, and the claims.

[0028] Further features and advantages of various embodiments, as well as their structure and operation, are described in detail below with reference to the accompanying drawings. It should be noted that this disclosure is not limited to the specific embodiments described herein. Such embodiments are presented herein for illustrative purposes only. Additional embodiments will be apparent to those skilled in the art based on the teachings contained herein. Attached Figure Description

[0029] The accompanying drawings, which are incorporated herein and form part of this specification, illustrate embodiments and, together with the specification, further serve to explain the principles and enable those skilled in the art to make and use these embodiments. The purposes and advantages of these embodiments will become more apparent from the detailed description of the exemplary, non-limiting embodiments with reference to the accompanying drawings.

[0030] Figure 1 A perspective view of a load-bearing frame including a locking mechanism, a retaining pin assembly, and a handle assembly according to one embodiment is shown.

[0031] Figure 2A A perspective view of a locking mechanism according to one implementation scheme is shown.

[0032] Figure 2B An example is given based on one implementation scheme. Figure 2A An exploded view of the locking mechanism.

[0033] Figures 3A to 3D Examples are given of the different operating positions according to the implementation plan. Figure 2A Side view of the locking mechanism.

[0034] Figures 4A to 4E Side views of different clamp pairs of the clamp assembly according to the implementation scheme are shown.

[0035] Figures 5A to 5C Side views of different one-piece clamps according to the embodiment are shown.

[0036] Figure 6 A partial perspective view of a locking mechanism according to one implementation is shown.

[0037] Figure 7A A partial cross-sectional perspective view of a locking mechanism according to one embodiment is shown.

[0038] Figure 7B A cross-sectional perspective view of a locking mechanism according to one embodiment is shown.

[0039] Figure 8A and Figure 8B A side view illustrating the protrusion and slot construction for a locking mechanism according to one embodiment is shown.

[0040] Figure 9 A side cross-sectional view of a locking mechanism according to one embodiment is shown.

[0041] Figures 10A to 10C A side view of a locking mechanism that performs a retraction function according to one implementation is shown.

[0042] Figure 11A front view of a locking mechanism housed in a connecting member according to one embodiment is shown.

[0043] Figure 12A and Figure 12B A front view of a locking mechanism housed in a connecting member according to an embodiment is shown.

[0044] Figure 13A A side view of a locking mechanism according to one implementation is shown.

[0045] Figure 13B An example is given based on one implementation scheme. Figure 12A A partial perspective view of the locking mechanism.

[0046] Figure 14 A side cross-sectional view of a locking mechanism according to one embodiment is shown.

[0047] Figure 15A A perspective view of a locking mechanism according to one implementation scheme is shown.

[0048] Figure 15B An example is given based on one implementation scheme. Figure 15A An exploded view of the locking mechanism.

[0049] Figure 16 An example is given based on one implementation scheme. Figure 15A A side view of the locking mechanism, showing its operation.

[0050] Figure 17A A perspective view of a locking mechanism according to one implementation scheme is shown.

[0051] Figure 17B An example is given based on one implementation scheme. Figure 17A An exploded view of the locking mechanism.

[0052] Figure 18 An example is given based on one implementation scheme. Figure 17A A side cross-sectional view of the locking mechanism.

[0053] Figure 19A An exploded view of a portion of a locking mechanism according to one implementation scheme is shown.

[0054] Figure 19B A side cross-sectional view of a locking mechanism according to one embodiment is shown.

[0055] Figure 20 A perspective view of a locking mechanism according to one implementation scheme is shown.

[0056] Figure 21 A cross-sectional perspective view of a locking mechanism according to one embodiment is shown.

[0057] Figure 22 A perspective view of an end cap and stop plate for a locking mechanism according to one embodiment is shown.

[0058] Figure 23 An example is given based on one implementation scheme. Figure 22 Perspective view of the stop plate.

[0059] Figure 24 A perspective view of a retaining pin assembly according to one embodiment is shown.

[0060] Figure 25 A bottom internal view of a retaining pin assembly according to one implementation is shown.

[0061] Figure 26 A perspective view of a retaining pin assembly inserted into a hook receiver according to one embodiment is shown.

[0062] Figures 27A to 27C A top view of the retaining pin assembly according to the implementation scheme is shown.

[0063] Figure 28 A perspective view of a handle assembly according to one embodiment is shown.

[0064] Figure 29 An example is given based on one implementation scheme. Figure 28 A partial top view of the interior of the handle assembly.

[0065] Figure 30 A perspective view of a handle assembly according to one embodiment is shown.

[0066] Figure 31 An example is given based on one implementation scheme. Figure 30 A cross-sectional view of the handle assembly.

[0067] Figure 32 A perspective view of a handle assembly according to one embodiment is shown.

[0068] Figure 33 An example is given based on one implementation scheme. Figure 32 A perspective view of the handle assembly.

[0069] The features and advantages of the embodiments will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which the same reference numerals consistently denote corresponding elements. In the drawings, the same reference numerals generally denote identical, functionally similar, and / or structurally similar elements. Detailed Implementation

[0070] Embodiments of this disclosure are described in detail with reference to the embodiments illustrated in the accompanying drawings. References to “an embodiment,” “an embodiment,” “a number of embodiments,” etc., indicate that the described embodiment may include a particular feature, structure, or characteristic, but each embodiment may not necessarily include that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a particular feature, structure, or characteristic is described in connection with an embodiment, it should be assumed that implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) is within the knowledge of a person skilled in the art.

[0071] Spatially relative terms, such as “below,” “under,” “lower,” “above,” “on,” “upper,” “relative,” etc., may be used herein for ease of description to describe the relationship between one element or feature and another element or feature illustrated in the figures. Spatially relative terms are intended to cover different orientations of a device in use or operation other than those depicted in the figures. The device may be oriented in other ways (e.g., rotated 90 degrees or otherwise), and the spatially relative descriptors used herein shall be interpreted accordingly.

[0072] As used herein, the terms “about” or “substantially” indicate the value of a given quantity that may vary based on a particular technique. Based on a particular technique, the terms “about” or “substantially” may indicate the value of a given quantity that varies within, for example, 1% to 15% of that value (e.g., ±1%, ±2%, ±5%, ±10%, or ±15% of that value).

[0073] The following examples are for illustrative purposes only and are not intended to limit this disclosure. Other suitable modifications and adaptations to various conditions and parameters commonly encountered in the art are also within the spirit and scope of this disclosure and will be apparent to those skilled in the art.

[0074] Embodiment 1 of the specification—A hook-mounted load-bearing rack includes: a connecting member configured to be inserted into a hook-mounted receiver; and a locking mechanism coupled to the connecting member and configured to secure the connecting member inside the hook-mounted receiver, the locking mechanism comprising: a first actuator disposed inside the connecting member; a second actuator opposite to the first actuator and disposed inside the connecting member; a shaft configured to move at least one of the first actuator and the second actuator; and a clamping assembly including a first contact member and a second contact member, wherein the first contact member and the second contact member are configured to engage an inner surface of the hook-mounted receiver.

[0075] Description of Embodiment 2 – According to Embodiment 1, the mounting load carrier wherein a first surface of the clamp assembly contacts the first actuator, and a second surface of the clamp assembly contacts the second actuator, wherein the first actuator and the second actuator are configured to translate the clamp assembly.

[0076] Scheme 3 of the instruction manual - the hanging-mounted load-bearing frame according to Scheme 2, wherein at least one of the first surface and the second surface has an arc shape.

[0077] Scheme 4 of the instruction manual - the hanging-mounted load-bearing frame according to Scheme 1, wherein the clamp assembly includes a first clamp and a second clamp.

[0078] Scheme 5 of the instruction manual – the hanging-mounted load-bearing frame according to Scheme 4, wherein the first clamp moves independently of the second clamp in a first direction.

[0079] Embodiment 6 of the instruction manual – the hook-mounted load-bearing frame according to Embodiment 4, wherein one of the first clamp or the second clamp includes a protrusion, and the other of the first clamp and the second clamp includes a recess configured to receive the protrusion.

[0080] Scheme 7 of the instruction manual – a hook-mounted load-bearing frame according to Scheme 6, wherein when the protrusion engages the recess, the first clamp and the second clamp move together.

[0081] Embodiment 8 of the specification – a hook-mounted load-bearing frame according to Embodiment 1, wherein the first clamp includes a first sidewall and the second clamp includes a second sidewall, the second sidewall being configured to engage the first sidewall and transfer load from the second clamp to the first clamp or receive load from the first clamp.

[0082] Scheme 9 of the instruction manual - The hanging-mount load-bearing frame according to Scheme 1, wherein the clamp assembly further includes a bridging member connecting the first contact member and the second contact member.

[0083] Scheme 10 of the instruction manual - a hanging load-bearing frame according to Scheme 1, wherein the locking mechanism is arranged between the opposite corners of the connecting members.

[0084] Embodiment 11 of the specification – a hanging-mounted load-bearing frame according to embodiment 1, wherein a first opening and a second opening are formed through the connecting member, and wherein the first contact member extends through the first opening and the second contact member extends through the second opening.

[0085] Embodiment 12 of the specification – The hook-mounted load carrier according to Embodiment 1 further includes a spring connected to the clamp assembly and in contact with the inner surface of the connecting member, wherein the spring is configured to bias the clamp assembly away from the inner surface of the hook-mounted receiver.

[0086] Scheme 13 of the instruction manual - a hanging load-bearing frame according to Scheme 1, wherein the shaft includes a first threaded portion and a second threaded portion.

[0087] Embodiment 14 of the specification – a hook-mounted load-bearing frame according to embodiment 13, wherein the first threaded portion is coupled to the first actuator and configured to move the first actuator in a first direction, and wherein the second threaded portion is coupled to the second actuator and configured to move the second actuator in a second direction opposite to the first direction.

[0088] Embodiment 15 of the specification – a hook-mounted load carrier according to embodiment 1, wherein the first actuator includes a slot configured to receive the clamp assembly, and wherein the slot includes an inclined surface configured to engage the clamp assembly.

[0089] Embodiment 16 of the specification—A hook-mounted load-bearing rack includes: a connecting member configured to be inserted into a hook-mounted receiver; and a locking mechanism coupled to the connecting member and configured to secure the connecting member inside the hook-mounted receiver, the locking mechanism comprising: a first actuator disposed inside the connecting member; a second actuator opposite to the first actuator and disposed inside the connecting member; an actuator plate coupled to the first actuator and configured to move the first actuator; a shaft configured to move at least one of the second actuator and the actuator plate; and a clamp assembly movably engaged with the first actuator and the second actuator, wherein the clamp assembly is configured to engage an inner surface of the hook-mounted receiver.

[0090] Embodiment 17 of the specification – a hook-mounted load carrier according to embodiment 16, wherein the actuator plate extends from the first actuator toward the shaft and overlaps with a portion of the clamp assembly and a portion of the second actuator.

[0091] Embodiment 18 of the specification – a hook-mounted load-bearing frame according to embodiment 16, wherein the shaft is rotatably coupled to the second actuator and a fastener, wherein the fastener is coupled to the actuator plate, and wherein when the shaft rotates, the second actuator moves in a first direction, and the actuator plate moves in a second direction opposite to the first direction.

[0092] Embodiment 19 of the specification – a hook-mounted load carrier according to embodiment 16, wherein the actuator plate includes a slot configured to receive a protrusion extending from the clamp assembly, and wherein the protrusion is movable within the slot to control the movement of the clamp assembly.

[0093] Scheme 20 of the instruction manual - a hanging load-bearing frame according to Scheme 19, wherein the slot extends at an angle relative to the length direction of the shaft.

[0094] Embodiment 21 of the specification—A hook-mounted load-bearing frame includes: a connecting member including an insertable end configured to be inserted into a hook-mounted receiver; and a retaining pin assembly including a pin body movably coupled to the connecting member at a fixed distance from the insertable end of the connecting member, wherein the pin body includes a fixed end and a free end configured to extend through aligned openings formed in the connecting member and the hook-mounted receiver, wherein the pin body is biased to a locked position, in which the free end of the pin body is disposed within the interior space of the hook-mounted receiver.

[0095] Embodiment 22 of the specification – a hook-mounted load-bearing frame according to embodiment 21, wherein the fixing pin assembly includes a load bracket connected to the connecting member, and wherein the pin body is rotatably connected to the load bracket.

[0096] Description of Embodiment 23 – A hook-mounted load-bearing bracket according to Embodiment 22, wherein the load support is configured to transfer a vertical load from the pin body to the connecting member when the pin body is operated as a carrying handle for the hook-mounted load-bearing bracket.

[0097] Embodiment 24 of the instruction manual—a hook-and-mount load-bearing bracket according to embodiment 22, wherein the fixing pin assembly includes a spring connected to the pin body and the load bracket, wherein the spring is configured to bias the body to the locking position.

[0098] Scheme 25 of the instruction manual – a hanging load-bearing frame according to Scheme 24, wherein the spring is a torsion spring.

[0099] Scheme 26 of the instruction manual – The hanging-mount load-bearing frame according to Scheme 24, wherein the fixing pin assembly includes a housing, and wherein a portion of the pin body, the load bracket and the spring are disposed within the housing.

[0100] Description of Embodiment 27 – A hook-mounted load-bearing frame according to Embodiment 21, wherein the free end of the pin body includes a hook configured to engage with the orifice of the hook-mounted receiver.

[0101] Scheme 28 of the instruction manual – a hanging-mount load-bearing frame according to Scheme 21, wherein the pin body is a non-linear slender body.

[0102] Description of Embodiment 29 – A hook-mounted load-bearing frame according to Embodiment 21, wherein the pin body is formed of a metal sheet and is configured to deflect to insert and remove the free end into and out of the orifice.

[0103] Scheme 30 of the instruction manual – a hook-mounted load-bearing frame according to Scheme 29, wherein the pin body is rotatably connected to the connecting member.

[0104] Embodiment 31 of the specification – a hook-mounted load-bearing frame according to embodiment 29, wherein the fixing pin assembly includes an elongated fastener coupled to the connecting member and a spring coupled to the elongated fastener, and wherein the pin body is movably coupled to the elongated fastener and biased away from the connecting member along the elongated fastener by the spring.

[0105] Description of Embodiment 32 – A hook-mounted load-bearing frame according to Embodiment 29, wherein the free end of the pin body includes a bolt configured to extend through the orifice of the connecting member and the hook-mounted receiver.

[0106] Embodiment 33 of the specification—A torque limiting handle includes: a shaft coupled to a locking mechanism; a handle body; a control ring disposed in the handle body and coupled to the shaft; and a torque arm coupled to the handle body and biased to engage with the control ring, wherein when a first torque is applied to the shaft, the torque arm prevents the control ring from rotating, and wherein when a second torque greater than the first torque is applied to the shaft, the torque arm allows the control ring to rotate.

[0107] Embodiment 34 of the specification – A torque limiting handle according to embodiment 33, wherein the control ring includes a recess for receiving a protruding end of the torque arm, and wherein the recess is shaped to retain the protruding end in the recess when the first torque is applied to the shaft, and to push the protruding end out of the recess when the second torque is applied to the shaft.

[0108] Embodiment 35 of the specification – a torque limiting handle according to embodiment 34, wherein the shape of the recess includes an arc having a plurality of radii.

[0109] Embodiment 36 of the specification – a torque limiting handle according to embodiment 34, wherein a first side of the recess extends substantially perpendicular to the periphery of the control ring, and a second side of the recess forms an arc that merges with the periphery of the control ring.

[0110] Embodiment 37 of the specification – The torque limiting handle according to Embodiment 33, the torque limiting handle further includes a ratchet mechanism connected to the shaft and the control ring.

[0111] Embodiment 38 of the specification – The torque limiting handle according to embodiment 33, the torque limiting handle further includes a spring that extends along the length of the handle and is connected to the handle body and the torque arm.

[0112] Description of embodiment 39 – Torque limiting handle according to embodiment 33, wherein the torque arm includes a first torque arm and a second torque arm configured to engage the control ring.

[0113] Embodiment 40 of the specification – a torque limiting handle according to embodiment 39, wherein the control ring includes a plurality of recesses formed in pairs on opposite sides of the control ring, and wherein the first torque arm and the second torque arm engage two of the plurality of recesses.

[0114] The load carrier embodiments disclosed herein can be used with, for example, but not limited to, bicycle racks or cargo containers. More specifically, the load carrier is a vehicle-mounted load carrier, such as a hook-mounted bicycle rack or cargo rack that can be attached to a vehicle's hook-on receiver.

[0115] As discussed above, it is important to securely mount the load carrier to the vehicle. A hook-and-loop load carrier may have one or more attachment mechanisms to attach and secure the load carrier to the vehicle. For example, a first attachment mechanism may be located inside the vehicle hook-up and may provide pressure on the inner surface of the vehicle hook-up for friction-fit attachment, and a second attachment mechanism may include a retaining pin that inserts from an external location and passes through aligned orifices in the hook-and-loop receiver and load carrier insertion connector.

[0116] Internal mechanisms may lose torque over time (also referred to herein as torque loss). Furthermore, over time, these mechanisms may damage or deform the interior of the vehicle mount, leading to greater torque loss and causing difficulties for the user. Torque loss necessitates frequent tightening of the mechanisms and can cause the load carrier to detach, potentially resulting in damage to the load carrier, the carried items, and / or the vehicle. Depending on the strength of the user attaching the load carrier, the weight of the load carrier, and other environmental conditions, it may become increasingly difficult to secure the load carrier to the mount receiver using the attachment mechanism over time.

[0117] Importantly, the locking mechanism includes features to reduce torque loss during use and further provides the user with tools to properly apply torque to the locking mechanism when installing it onto a vehicle hook-up. Additionally, it is important to maximize the frictional fit between the hook-up receiver and the locking mechanism for a given torque to reduce the tendency to apply excessive torque to the locking mechanism to achieve the desired fixation. This disclosure provides an embodiment of the locking mechanism comprising two contact members to increase the contact area and corresponding friction with the hook-up receiver. The two contact members also provide independent movement of the contact members to accommodate imperfections and unevenness on the inner surface of the hook-up receiver, thereby allowing the locking mechanism to apply a consistent force to the hook-up receiver.

[0118] The retaining pin provides an auxiliary safety system for securing the load carrier to the vehicle. The self-locating pin simplifies load carrier installation by automatically performing one of the securing functions of the load carrier. This disclosure provides embodiments of the retaining pin configured to achieve or accommodate repeated, identical positioning of the pin's engaging end on the hook-and-loop receiver. Additionally, for the load carrier, having additional lifting points to aid in moving and positioning the load carrier relative to the hook-and-loop receiver for installation or storage may be advantageous. This disclosure also provides a retaining pin embodiment that can also function as a handle for the load carrier, the handle being robust enough to support the weight of the load carrier.

[0119] The implementation schemes of the load carrier devices, systems and methods discussed below provide versatility for securing load carriers to vehicles, and these implementation schemes are easy to use and provide robust and safe installation of load carriers.

[0120] Example of a connected device Figures 1 to 23 A locking mechanism 200 for a load carrier 100 according to an embodiment is illustrated. The locking mechanism 200 can be configured to secure the load carrier 100 to a vehicle. The locking mechanism 200 may include a plurality of contact surfaces that engage the inner surface 16 of the hook-and-loop receiver 14 to accommodate surface irregularities in the hook-and-loop receiver 14 and increase the clamping friction between the locking mechanism 200 and the hook-and-loop receiver 14. While the locking mechanism 200 in… Figures 1 to 23 The system is shown as a standalone system, but embodiments of this disclosure can be used with other devices and / or systems, such as, but not limited to, the retaining pin 500 and the handle assembly 600.

[0121] The load carrier 100 can be configured to be attached to the vehicle 12, and to secure the load to the load carrier 100 for transport by the vehicle 12. For example, as Figure 1 As shown, the load carrier 100 may be a bicycle carrier configured to secure one or more bicycles to the carrier. In some embodiments, the load carrier 100 may be or support a cargo box configured to be secured to a vehicle. The vehicle 12 may include a hook-and-loop receiver 14 configured to receive a connecting member 110 of the load carrier 100. In some embodiments, the connecting member 110 may have dimensions and shape corresponding to the inner surface 16 of the hook-and-loop receiver 14 (e.g., a 1.25-inch or 2-inch hook-and-loop receiver). In some embodiments, the connecting member 110 may have a hollow square or rectangular shape with rounded corners when viewed in cross-section. Generally, the connecting member 110 is a resilient material, such as, but not limited to, steel or other metals.

[0122] The connecting member 110 is configured to insert into the hook-and-loop receiver 14 and to house the locking mechanism 200 within its interior 116. The connecting member 110 may include an outer surface 114 facing an inner surface 16 of the hook-and-loop receiver 14, an inner surface 112 opposite to the outer surface 114, and a longitudinal axis 120 extending along the length of the connecting member 110. In some embodiments, the connecting member 110 may be a hollow cube having a cross-sectional thickness of, for example, about 1 mm to 10 mm. The connecting member 110 may include a first aperture 130 and a second aperture 132, each of which extends through the inner surface 112 and the outer surface 114. Figure 1 In the exemplary embodiments shown, the first aperture 130 and the second aperture 132 may be configured to receive the clamp assembly 230 of the locking mechanism 200. In some embodiments, the first aperture 130 and the second aperture 132 may extend through the corner 118 of the connecting member 110.

[0123] The locking mechanism 200 may be disposed within the interior 116 of the connecting member 110 and includes a clamp assembly 230 that extends at least partially beyond the connecting member 110 to engage the hook-on receiver 14. In some embodiments, the locking mechanism 200 may be attached to the connecting member 110. For example, as Figures 3A to 3D As shown, the locking mechanism 200 can be configured to move the clamp assembly 230 in the first direction 10 and engage with the inner surface 16 of the hook-and-loop receiver 14 to provide a locked position 50. For example, as Figures 10A to 10C As shown, the locking mechanism 200 can be configured to move the clamp assembly 230 away from the inner surface 16 of the hook receiver 14 in a second direction 20 opposite to the first direction 10 to provide an unlocked position 60.

[0124] In some embodiments, in the unlocked position 60, the clamp assembly 230 retracts into the connecting member 110, such that the first contact member 240 is recessed into the first orifice 130 and below the outer surface 114, and the second contact member 250 is recessed into the second orifice 132 and below the outer surface 114. In some embodiments, the first contact member 240 and / or the second contact member 250 may protrude beyond the outer surface 114 in the unlocked position 60. In some embodiments, the contact members 240, 250 may include a pad that engages with the inner surface 16 of the hook-on receiver 14 and adapts to surface irregularities and absorbs shock vibrations during transport of the load carrier 100. The locking mechanism 200 may be moved between the locked position 50 and the unlocked position 60, for example, by means of a handle assembly 600 (e.g., by rotating the handle assembly 600), which causes the clamp assembly 230 to retract or protrude radially.

[0125] The locking mechanism 200 may include a shaft 202, a first actuator 210, a second actuator 220, a clamp assembly 230, a first actuator plate 270, and / or a second actuator plate 272, for example, such as Figures 2A to 3D As shown. In some embodiments, shaft 202 is rotatable, causing the first actuator 210 and the second actuator 220 to translate linearly along axis 120. In some embodiments, the first actuator 210 may be configured to move in a third direction 30, and the second actuator 220 may be configured to move in a fourth direction 40 opposite to the third direction 30. In some embodiments, the first actuator 210 may move in the third direction 30 and contact a first surface 242 of the clamp assembly 230 to translate the clamp assembly 230 linearly in the first direction 10. In some embodiments, the first direction 10 is generally perpendicular to the third direction 30 and / or the fourth direction 40. In some embodiments, the second actuator 220 may move in the fourth direction 40 and contact a second surface 252 of the clamp assembly 230 to translate the clamp assembly 230 linearly in the first direction 10. In some implementations, tolerances in the components of the locking mechanism 200 allow the clamp assembly 230 to translate and oscillate to adjust to accommodate tolerances in the assembly and any gaps that may form between the component parts.

[0126] Shaft 202 may extend along axis 120 and be coupled to handle 600 and second actuator 220, for example, Figures 2A to 3D As shown. Shaft 202 may include a first end 204, a second end 206, a threaded portion 208, and / or a spring 209. Shaft 202 may be coupled to handle 600 at the first end 204, allowing a user to operate handle 600, for example, to rotate shaft 202. Shaft 202 may be rotatably coupled to a second actuator 220 at the second end 206. In some embodiments, shaft 202 is threadedly coupled to the second actuator 220 such that rotation of shaft 202 moves the second actuator 220 in a third direction 30 or a fourth direction 40 depending on the direction of rotation of shaft 202 (e.g., clockwise or counterclockwise). For example, as Figures 2A to 3D As shown, the second end 206 of the shaft 202 includes a flange 207 that engages a retaining slot 226 of the second actuator 220. The shaft 202 is threadedly coupled to a fastener 274 along a threaded portion 208, such that rotation of the shaft 202 relative to the fastener 274 causes the flange 207 to apply force on the retaining slot 226 and move the second actuator 220. In some embodiments, the fastener 274 may be a nut, a flange, or a plate with a threaded orifice.

[0127] Spring 209 can be coupled to shaft 202 and apply force to second actuator 220 to limit torque loss in locking mechanism 200. For example... Figures 2A to 3DIn the exemplary embodiment shown, spring 209 may be secured to shaft 202 between threaded portion 208 and first end 204. In some embodiments, spring 209 may engage second actuator 220 and apply force in a fourth direction 40 on second actuator 220. During transport of load carrier 100, bumps and swaying of load carrier 100 may increase and decrease the force acting on locking mechanism 200 from hook receiver 14. Such changes in force may result in small movements of clamp assembly 230, first actuator 210 and / or second actuator 220, potentially reducing the frictional engagement between locking mechanism 200 and hook receiver 14. Spring 209 may be configured to maintain a positive force in locking mechanism 200 such that the frictional engagement between locking mechanism 200 and hook receiver 14 is maintained throughout operation and transport of load carrier 100, thereby limiting torque loss in the system.

[0128] The second actuator 220 is configured to translate in a third direction 30 and / or a fourth direction 40, and to translate the clamp assembly 230 in a first direction 10 and a second direction 20 to engage and disengage with the hook-on receiver 14. In some embodiments, the second actuator 220 may be configured to translate linearly along axis 120. For example, the second actuator 220 may translate linearly along axis 120 depending on the rotation of the threads along the threaded portion 208 of axis 202. The second actuator 220 may include a second actuating surface 222, an elongated orifice 224, and / or a retaining slot 226, for example, as Figures 2A to 3D As shown. In, for example Figure 2B In the exemplary embodiments shown, the second actuator 220 is a thin plate. In some embodiments, the second actuator 220 may have a thickness between 3 mm and 12 mm. In some embodiments, the second actuator 220 may have a thickness between 4 mm and 10 mm. In some embodiments, the second actuator 220 may have a thickness of approximately 5 mm. In some embodiments, the second actuator 220 may be made of a rigid material, such as metals (e.g., steel, stainless steel, iron, aluminum, tungsten, lead, titanium, etc.), metal oxides, ceramics, polymers, or other similar rigid materials.

[0129] In some embodiments, the second actuating surface 222 may be a surface angled relative to the axis 120 and may be configured to engage the second surface 252 of the clamp assembly 230, for example, as Figures 3A to 3DAs shown. The second actuating surface 222 may be configured to convert axial movement of the second actuator 220 along axis 120 into radial movement of the clamp assembly 230 in a first direction 10 and / or a second direction 20. In some embodiments, the second actuating surface 222 may be at an angle between 0 and 90 degrees relative to axis 120. In some embodiments, the second actuating surface 222 may be at an angle between 5 and 85 degrees relative to axis 120. In some embodiments, the second actuating surface 222 may be at an angle between 25 and 60 degrees relative to axis 120. In some embodiments, the second actuating surface 222 may be at an angle of approximately 30 degrees relative to axis 120. In some embodiments, the second actuating surface 222 may be at an angle of approximately 45 degrees relative to axis 120. In some embodiments, the second actuating surface 222 may be angled to complement the second surface 252 of the clamp assembly 230. In some embodiments, the second actuating surface 222 may have a different angle than the second surface 252 of the clamp assembly 230, thereby reducing the contact area between the surfaces and thus reducing friction in the mechanism. In some embodiments, the second actuating surface 222 may have an angle equal to but opposite to the first actuating surface 212 of the first actuator 210, such that the first actuator 210 and the second actuator 220 translate the clamp assembly 230 at approximately the same rate.

[0130] In some embodiments, an elongated aperture 224 may be formed along axis 120 in the second actuator 220, for example, as Figures 2A to 3D As shown. An elongated orifice 224 can be connected to a retaining slot 226, such that the shaft 202 extends through the elongated orifice 224 and enters the retaining slot 226. The elongated orifice 224 can be sized to accommodate a fastener flange 274, such that the second actuator 220 and the fastener 274 can translate relative to each other. The retaining slot 226 can be configured to receive a flange 207 of the shaft 202. The retaining slot 226 can be configured to transmit force and movement of the shaft 202 to the second actuator 220.

[0131] The first actuator 210 is configured to translate in a third direction 30 and / or a fourth direction 40, and to translate the clamp assembly 230 in a first direction 10 and a second direction 20 to engage and disengage with the hook-on receiver 14. The first actuator 210 may be disposed opposite to the second actuator 220 such that the first actuating surface 212 of the first actuator 210 faces the second actuating surface 222 of the second actuator 220, for example, as... Figures 2B to 3D As shown. In, for example Figure 2BIn the exemplary embodiments shown, the first actuator 210 is a thin plate. In some embodiments, the first actuator 210 may have a thickness between 3 mm and 12 mm. In some embodiments, the first actuator 210 may have a thickness between 4 mm and 10 mm. In some embodiments, the first actuator 210 may have a thickness of approximately 5 mm. In some embodiments, the first actuator 210 may be made of a rigid material, such as a metal (e.g., steel, stainless steel, iron, aluminum, tungsten, lead, titanium, etc.), metal oxide, ceramic, polymer, or other similar rigid material.

[0132] In some embodiments, the first actuating surface 212 may be a surface angled relative to the axis 120 and may be configured to engage the first surface 242 of the clamp assembly 230, for example, as Figures 3A to 3D As shown. The first actuating surface 212 may be configured to convert axial movement of the first actuator 210 along axis 120 into radial movement of the clamp assembly 230 in a first direction 10 and / or a second direction 20. In some embodiments, the first actuating surface 212 may be at an angle between 0 and 90 degrees relative to axis 120. In some embodiments, the first actuating surface 212 may be at an angle between 5 and 85 degrees relative to axis 120. In some embodiments, the first actuating surface 212 may be at an angle between 25 and 60 degrees relative to axis 120. In some embodiments, the first actuating surface 212 may be at an angle of approximately 30 degrees relative to axis 120. In some embodiments, the first actuating surface 212 may be at an angle of approximately 45 degrees relative to axis 120. In some embodiments, the first actuating surface 212 may be angled to complement the first surface 242 of the clamp assembly 230. In some implementations, the first actuating surface 212 may have a different angle from the first surface 242 of the clamp assembly 230, thereby reducing the contact area between the surfaces, which can also reduce friction in the mechanism.

[0133] The first actuator 210 can be connected to the first actuator plate 270 and the second actuator plate 272, for example, as Figures 2A to 3D As shown. In some embodiments, the first actuator plate 270 and the second actuator plate 272 are substantially similar and include a first end 271, a second end 273 opposite to the first end 271, a translation slot 275, and / or an elongated recess 276, for example, as Figures 2A to 3DAs shown. The first actuator 210 can be coupled to the first end 271 of the first actuator plate 270 and the second actuator plate 272 via fasteners 214. In some embodiments, the fasteners 214 may be diagonally offset from each other, such that the first actuator 210 and the actuator plates 270, 272 are fixed relative to each other in a certain orientation. In some embodiments, the first actuator 210 can be coupled to the actuator plates 270, 272 via rivets, bolts, spring pins, welding, adhesives, or any other suitable attachments.

[0134] In some embodiments, actuator plates 270, 272 extend along axis 120 to at least partially overlap with the first actuator 210, the clamp assembly 230, and the second actuator 220, for example, as Figure 2A As shown. In some embodiments, the first actuator plate 270 and the second actuator plate 272 may be thin plates. In some embodiments, the first actuator plate 270 and the second actuator plate 272 may have a thickness between 3 mm and 12 mm. In some embodiments, the first actuator plate 270 and the second actuator plate 272 may have a thickness between 4 mm and 10 mm. In some embodiments, the first actuator plate 270 and the second actuator plate 272 may have a thickness of approximately 5 mm. In some embodiments, the first actuator plate 270 and the second actuator plate 272 may be configured to sandwich a portion of the locking assembly 200 between them. For example... Figure 2A In the exemplary embodiment shown, the first actuator 210 is disposed between actuator plates 270 and 272. In some embodiments, the first actuator 210 is at least partially disposed between actuator plates 270 and 272. For example... Figure 2A In the exemplary embodiments shown, the clamp assembly 230 and the second actuator 220 are at least partially disposed between actuator plates 270, 272. In some embodiments, the first actuator 210, the second actuator 220, and the clamp assembly 230 are completely covered by actuator plates 270, 272, except when the contact members 240, 250 of the clamp assembly 230 engage the hook receiver 14 in the locked position 50. In some embodiments, the locking mechanism 200 includes only one actuator plate 270 extending on one side of the locking mechanism 200.

[0135] The recess 276 may be formed in the actuating plates 270, 272 and configured to accommodate the width of the shaft 202, for example, as Figure 2A As shown. A recess 276 may extend from the second end 273 along axis 120, such that the actuating plates 270, 272 form an opening configured to receive the shaft 202. The length of the recess 276 may be set to accommodate relative movement between the shaft 202 and the actuating plates 270, 272 when the locking mechanism 200 moves between the locked position 50 and the unlocked position 60.

[0136] The translation slot 275 can be formed along the length of the recess 276 through the actuating plates 270, 272, for example, as Figure 2A and Figure 2B As shown. The translation slot 275 can be configured to receive the fastener 274. In some embodiments, the translation slot 275 can be sized to have the same dimensions as the fastener 274 to minimize the gap between the translation slot 275 and the fastener 274. In some embodiments, the translation slot 275 forms a translation surface 277 in the recess 276. The translation surface 277 can be configured to engage with the fastener 274 such that movement of the fastener flange is transmitted to the actuator plates 270, 272.

[0137] The interaction between fastener 274, shaft 202, second actuator 220, actuator plates 270, 272, and first actuator 210 can facilitate opposite movements of the second actuator 220 relative to the first actuator 210 in a third direction 30 and a fourth direction 40, for example, as Figures 3A to 3D As shown. For example, shaft 202 can rotate, and the threaded engagement between shaft 202 and fastener 274 allows shaft 202 and the second actuator 220 to move in a fourth direction 40. For example, as Figure 3A and Figure 3B As shown, the distance 290 between the slot 226 and the fastener 274 increases during this initial stage.

[0138] When the second actuator 220 experiences resistance (e.g., friction between the second actuation surface 222 of the second actuator 220 and the second surface 252 of the clamp assembly 230, or the initial engagement of the clamp assembly 230 with the hook receiver 14), movement of the second actuator 220 and shaft 202 can be restricted, and continued rotation of shaft 202 can cause fastener flange 274 to translate along threaded portion 208 toward first end 204 of shaft 202 in a third direction 30. For example, as Figure 3B and Figure 3C As shown, the distance 290 between the slot 226 and the fastener flange 274 is further increased during this stage.

[0139] Translation of the fastener flange 274 in the third direction 30 causes movement of the actuator plates 270, 272 and the first actuator 210, such that the first actuator 210 moves in the third direction 30 and is closer to the second actuator 220. Continued rotation of the shaft 202 can continue as described above for the fastener flange 274, shaft 202, second actuator 220, actuator plates 270, 272 and the first actuator 210, and for example in… Figure 3C and Figure 3DThe movement and interaction are shown in the figure. The movement and interaction of the locking mechanism 200 can continue until both clamping contact members 240, 250 of the clamp assembly 230 are engaged with the hook receiver 14 in the locked position 50 and the desired frictional fit is formed between the locking mechanism 200 and the hook receiver 14.

[0140] The clamp assembly 230 can be configured to translate radially outward from axis 120 to engage with the hook-on receiver 14. For example, as Figures 3A to 3D As shown, movement of the first actuator 210 in a third direction 30 and the second actuator 220 in a fourth direction 40 toward each other can move the clamp assembly 230 outward in the first direction 10. In some embodiments, the clamp assembly 230 may include a first clamp 232 and a second clamp 234. For example... Figures 2A to 4E and Figures 10A to 10C In the exemplary embodiment shown, the first clamp 232 and the second clamp 234 are separate components that can move independently of each other.

[0141] In some embodiments, the first clamp 232 may be actuated by the first actuator 210 and includes a first contact member 240, a first surface 242, and a first sidewall 244, for example, as Figures 2B to 4E As shown. In some embodiments, the first clamp 232 may be made of a rigid material, such as a metal (e.g., steel, stainless steel, iron, aluminum, tungsten, lead, titanium, etc.), metal oxide, ceramic, polymer, or other similar rigid material. In some embodiments, the first contact member 240 may be configured to extend through the first aperture 130 in the connecting member 110 and engage with the inner surface 16 of the hook-and-loop receiver 14. In some embodiments, the first contact member 240 is a flat surface configured to contact the inner surface 16 of the hook-and-loop receiver 14 when in the locked position 50. In some embodiments, the first contact member 240 may be an arm, plate, surface, bearing, rod, or wedge.

[0142] In some implementations, the first surface 242 may contact the first actuation surface 212 of the first actuator 210, for example, as Figures 3A to 3D As shown. The first surface 242 may be angled relative to the axis 120. In some embodiments, the first surface 242 may be angled between 20 degrees and 70 degrees. In some embodiments, the first surface 242 may be angled to complement the first actuation surface 212 of the first actuator 210. In some embodiments, the first surface 242 may have a different angle than the first actuation surface 212, thereby reducing the contact area between the surfaces, which may also reduce friction in the mechanism. In some embodiments, the first surface 242 may have curvature, for example, as... Figure 5C As shown.

[0143] The second clamp 234 can be used with the one described above and Figures 2B to 4E The first clamp 232 shown is identical or similar and may include any features described with respect to the first clamp. In some embodiments, the second clamp 234 may be actuated by a second actuator 220 and includes a second contact member 250, a second surface 252, and a second sidewall 254, for example, as Figures 2B to 4E As shown. In some embodiments, the second clamp 234 may be made of a rigid material, such as a metal (e.g., steel, stainless steel, iron, aluminum, tungsten, lead, titanium, etc.), metal oxide, ceramic, polymer, or other similar rigid material. In some embodiments, the second contact member 250 may be configured to extend through the second aperture 132 in the connecting member 110 and engage with the inner surface 16 of the hook-and-loop receiver 14. In some embodiments, the second contact member 250 is a flat surface configured to contact the inner surface 16 of the hook-and-loop receiver 14 when in the locked position 50. In some embodiments, the second contact member 250 may be an arm, plate, surface, bearing, rod, or wedge.

[0144] In some implementations, the second surface 252 may contact the second actuation surface 222 of the second actuator 220, for example, as Figures 3A to 3D As shown. The second surface 252 may be angled relative to axis 120. In some embodiments, the second surface 252 may be angled between 20 degrees and 70 degrees. In some embodiments, the second surface 252 may be angled to complement the second actuation surface 222 of the second actuator 220. In some embodiments, the second surface 252 may have a different angle than the second actuation surface 222, thereby reducing the contact area between the surfaces, which may also reduce friction in the mechanism. In some embodiments, the second surface 252 may have curvature.

[0145] In example Figures 2B to 4DIn the illustrated exemplary embodiment, a first sidewall 244 of the first clamp 232 may contact a second sidewall 254 of the second clamp 234. The first sidewall 244 and the second sidewall 254 may be configured to transfer a load between the first clamp 232 and the second clamp 234 during movement from the unlocked position 60 to the locked position 50. For example, a first contact member 240 of the first clamp 232 may engage an inner surface 16 of the hook receiver 14 before a second contact member 250 of the second clamp 234. The engagement between the first contact member 240 and the inner surface 16 may create a reaction force or load in a second direction 20, which is redirected in a third direction 30 by the interaction between the first surface 242 and the first actuating surface 212. The force or load may be transferred from the first clamp 232 to the second clamp 234 through the engagement between the first sidewall 244 and the second sidewall 254. The force or load may be redirected to the first direction 10 by the interaction between the second actuating surface 222 and the second surface 252. The second contact member 250 can move in the first direction 10 or apply a force in the first direction 10 to the inner surface 16 of the hook-on receiver 14. In some embodiments, the load is transferred from the first clamp 232 to the second clamp 234 and back to balance the forces on the contact members 240, 250. In some embodiments, the first sidewall 244 and the second sidewall 254 can be configured to guide each other during translation along the first direction 10 and the second direction 20.

[0146] For example, such as Figure 2B , Figures 3A to 3D , Figure 4A and Figure 4B As shown, the first sidewall 244 may include a protrusion 246, and the second sidewall 254 may include a recess 256 configured to receive the protrusion 246 (or vice versa). In some embodiments, the protrusion 246 and the recess 256 may be L-shaped and include portions extending parallel to the first sidewall 244 and the second sidewall 254, for example, as Figures 2B to 4A As shown. In some embodiments, a gap may be formed between the protrusion 246 and the recess 256, allowing the first clamp 232 to move relative to the second clamp 234 without the protrusion 246 contacting the recess 256. In some embodiments, the protrusion 246 may be configured to engage the recess 256, such that the first clamp 232 and the second clamp 234 move together between a locked position 50 and an unlocked position 60. In some embodiments, the protrusion 246 extends vertically away from the first sidewall 244, for example, as... Figure 4B As shown. In some embodiments, the first sidewall 244 and the second sidewall 254 may include stepped geometries configured to join in a first direction or a second direction, for example, as Figure 4CAs shown. In some embodiments, the first sidewall 244 and the second sidewall 254 can be flat surfaces, for example, as shown. Figure 4D As shown. In some embodiments, the first sidewall 244 and the second sidewall 254 may be spaced apart and not transmit the load between the first clamp 232 and the second clamp 234, for example, as Figure 4E As shown.

[0147] In some implementations, the first clamp 232 and the second clamp 234 can be connected together via a bridging member 236, for example, as shown in the figure. Figures 5A to 5C Figure 7 Figures 13A to 14 As shown. In some embodiments, the first clamp 232, the second clamp 234, and the bridging member 236 can be single-piece components forming the U-shaped clamp. For example... Figure 5A In the exemplary embodiment shown, the bridging member 236 may taper at the center to provide flexibility, such that the bridging member 236 is bendable and the first clamp 232 and the second clamp 234 can move independently of each other. In some embodiments, the bridging member 236 may be formed with different widths, for example, as Figure 5B and Figure 5C As shown. For example, the bridging member 236 can be thinner to provide greater flexibility or to accommodate components of the locking mechanism radially positioned below the clamp assembly 230, such as shaft 402, for example, as Figures 17A to 21 As shown. In some embodiments, the bridging member 236 may have increased thickness to increase the strength of the clamp assembly 230, for example, as Figure 5C As shown.

[0148] In some embodiments, the locking mechanism 200 may include retraction and guiding features to control movement of the clamp assembly 230 in the first direction 10 and the second direction 20. For example, in some cases, contact members 240, 250 may jam when engaged with the hook receiver 14, such that the clamp assembly 230 does not move in the second direction 20 when the actuators 210, 220 are moved to the unlocked position 60. The retraction features disclosed herein actively move the clamp assembly 230 in the second direction 20 and disengage it from the hook receiver 14.

[0149] For example, such as Figure 2B and Figure 6As shown, the first actuator plate 270 may include an actuation slot 278, and the first actuator 210 may include a protrusion 248. The protrusion 248 may extend outward away from the first actuator 210 and into the actuation slot 278. When the locking mechanism 200 moves between a locked position 50 and an unlocked position 60, the protrusion 248 may move through the actuation slot 278. In some embodiments, the actuation slot 278 may be angled relative to the axis 120, such that when the actuator plate 270 moves in a third direction 30 or a fourth direction 40, the actuation slot 278 guides the protrusion 248 to move the first clamp 232 in the first direction 10 or the second direction 20. For example, when the actuator plate 270 moves in the fourth direction 40, the actuation slot 278 guides the protrusion 248 along the slot 278, such that the first clamp 232 moves in the second direction 20. In some embodiments, when the actuating plate 270 moves in the third direction 30, the actuation slot 278 and the protrusion 248 are spaced apart such that only the first actuation surface 212 and the first surface 242 move the first clamp 232 in the first direction 10. When the clamp assembly 230 retracts from the hook receiver 14 (second direction 20), the surfaces 212, 242 do not pull or apply force to move the clamp assembly 230 in the second direction 20, and the actuation slot 278 and the protrusion 248 can be operated for this movement.

[0150] For example, such as Figure 2B , Figure 6 and Figures 10A to 10C As shown, the locking mechanism 200 includes only an actuation slot 278 and a protrusion 248 extending away from the first actuator 210. In some embodiments, the actuation slot 278 and the protrusion 248 operate to move the first clamp 232 in the second direction 20, and consequently, the protrusion 246 in the first sidewall 244 of the first clamp 232 engages the recess 256 in the second sidewall 254 of the second clamp 234 to move the second clamp 234 in the second direction 20.

[0151] As shown in the figure, for example, in Figure 7A In one embodiment, the clamp assembly 230 may include two actuation slots 278 oriented substantially parallel to each other, and the actuation plate 270 may include two actuation protrusions 248 extending into the actuation slots 278. For example, as Figure 7B As shown, the clamp assembly 230 may include two protrusions 248 extending from the one-piece U-shaped clamp 230. In some embodiments, each of the first clamp 232 and the second clamp 234 may include a protrusion 248 for separate movement of the first clamp 232 and the second clamp 234. For example, as Figure 7B As shown, the clamp assembly 230 may include a single continuous contact member 241 extending along the length of the clamp assembly 230. In some embodiments, the first actuation plate 270 may include diagonally oriented actuation slots 278, for example, such as Figure 8A As shown, the second actuating plate 272 may include an actuating slot 278 oriented approximately vertically, for example, as Figure 8B As shown (or vice versa). In some embodiments, actuators 210, 220 may include a protrusion 248 (e.g., circular or round) that is received in an approximately vertically oriented actuation slot 278 of actuator plates 270, 272 to facilitate vertical guidance of clamps 232, 234 in a first direction 10 and a second direction 20.

[0152] In some implementations, the locking mechanism 200 may include a spring 280, for example, as Figure 9 As shown. In some embodiments, spring 280 may be disposed between the clamp assembly 230 and the inner surface 112 of the connecting member 110. In some embodiments, spring 280 may be configured to bias the clamp assembly 230 in a second direction 30 and away from engagement with the inner surface 16 of the hook receiver 14. In some embodiments, spring 280 may be coupled to a protrusion 281 extending away from the clamp assembly 230. In some embodiments, spring 280 may contact a flat surface on the clamp assembly 230.

[0153] In some embodiments, the locking mechanism 200 may include a stop member 205 disposed along the axis 202 to facilitate retraction of the clamp assembly 230 in the second direction 20, for example, as Figures 10A to 10C As shown. The interaction between shaft 202, stop member 205, stop plate 150, fastener flange 274, second actuator 220, actuator plates 270, 272, first actuator 210, actuation slot 278 and / or protrusion 248 promotes active movement of clamp assembly 230 in the second direction 20, for example, as Figures 10A to 10C As shown. For example, shaft 202 can be rotated to release locking mechanism 200, and the threaded engagement between shaft 202 and fastener flange 274 allows shaft 202 and second actuator 220 to move away from clamp assembly 230 and first actuator 210 in a third direction 30. As shaft 202 moves in the third direction 30, stop member 205 approaches and engages stop plate 150. For example, as Figure 10A and Figure 10B As shown, during this initial stage, the stop member 205 moves toward the stop plate 150 and engages the stop plate.

[0154] When the stop member 205 engages the stop plate 150, it prevents further axial movement of the shaft 202 in the third direction 30. Continued rotation of the shaft 202 can cause the fastener flange 274 to translate along the threaded portion 208 toward the second end 206 of the shaft 202 in the fourth direction 40. For example, as Figures 10A to 10C As shown, the distance 290 between the slot 226 and the fastener flange 274 decreases throughout the operation.

[0155] Translation of the fastener flange 274 in the fourth direction 40 causes the actuator plates 270, 272 and the first actuator 210 to move in the fourth direction 40 and away from the second actuator 220. Translation of the first actuator 210 in the fourth direction 40 causes the actuation protrusion 248 to move in the actuation slot 278, subsequently driving the first actuator 210 in the second direction 20, for example, as... Figure 6 and Figure 10C As shown. The protrusion 246 of the first clamp 232 can engage with the recess 256 of the second clamp 234, such that the first clamp 232 moves the second clamp 234 in the second direction 20. Continued rotation of the shaft 202 can continue the stop member 205, the stop plate 150, the fastener flange 274, the shaft 202, the actuators 210, 220, the actuator plates 270, 272, the protrusion 248, the actuation slot 278, and the clamp assembly 230 as described above, and for example in Figure 10B and Figure 10C The movement and interaction are shown in the figure. The movement and interaction of the locking mechanism 200 can continue until both clamping contact members 240, 250 of the clamp assembly 230 are disengaged from and spaced apart from the inner surface 16 of the hook receiver 14 in the unlocked position 60, so that the load carrier 100 can be removed from the hook receiver 14 and the vehicle 12, for example.

[0156] For example, such as Figure 11 As shown, the locking mechanism 200 may be arranged diagonally within the interior 116 of the connecting member 110 extending between opposite corners 118, 119. In some embodiments, the first orifice 130 and the second orifice 132 of the connecting member 110 may extend through the corner 118 of the connecting member 110. The locking mechanism 200 may include a rod 284 disposed in the second corner 119 between the actuating plates 270, 272, for example, as... Figure 2B and Figure 11As shown. In some embodiments, the lever 284 is disposed opposite to the clamp assembly 230. In some embodiments, the lever 284 fills the space between the first actuator 210 and the second actuator 220 and the inner surface 112 at the second corner 119 of the connecting member 110. In some embodiments, the first actuator 210 and the second actuator 220 may push the lever 284 when the clamp assembly 230 is under load due to contact with the hook receiver 14. In some embodiments, the lever 284 provides a sliding surface for the first actuator 210 and the second actuator 220 to slide in the third direction 30 and the fourth direction 40. In some embodiments, the actuator plates 270, 272 may include a chamfered surface 282, for example, as shown. Figure 2B , Figure 6 and Figure 11 As shown. In some embodiments, the chamfered surface 282 extends substantially perpendicular to the inner surface 112 adjacent to the second corner 119. In some embodiments, the chamfered surface 282 may reduce damage to the inner surface 112 of the connecting member 110 during operation of the load-bearing frame 100. In some embodiments, the chamfer 282 may center the locking mechanism 200 within the interior 116 of the connecting member 110 and increase the stability of the assembly.

[0157] For example, such as Figure 12A As shown, actuator plates 270, 272 may include outwardly extending edge portions 285 extending outwardly from actuator plates 270, 272 and generally perpendicular to adjacent inner surfaces 112 of connecting member 110. For example... Figure 12B In the exemplary embodiments shown, actuator plates 270, 272 surround the top and bottom portions of the locking mechanism 200. In some embodiments, actuator plates 270, 272 support the locking mechanism 200 within the interior 116 of the connecting member 110. In some embodiments, the actuators 270, 272 center the locking mechanism 200 substantially within the interior 116 of the connecting member 110.

[0158] In some implementations, the first actuator 210 protrudes away from the actuator plate 270, for example, as Figure 13A and Figure 13B As shown. In some embodiments, the first actuator 210 and the actuator plate 270 are single-piece integral components. In some embodiments, the actuator plate 270 may be made of a sheet of metal, and the first actuator 210 may be formed by bending a portion of the actuator plate 270 toward the center of the locking mechanism 200. In, for example... Figure 14In the exemplary embodiment shown, the clamp assembly 230 includes a thick bridging member 236 and is overlapped by an actuator plate 270. In some embodiments, the shaft 202 may include a plurality of shorter rotating elements having couplings to connect them together to extend along the length of the connecting member 110.

[0159] refer to Figures 15A to 16 The locking mechanism 300 is shown. The locking mechanism 300 is configured for use in the load-bearing frame 100 and is substantially similar to, for example... Figure 2A , Figure 2B and Figure 11 The locking mechanism 200 is shown in the figure. Therefore, similar reference numerals in the 300 series indicate common features between locking mechanism 200 and locking mechanism 300. The description of locking mechanism 200 and its assembly method is incorporated herein by reference to apply to locking mechanism 300, unless there is a conflict with the specific description and figures of locking mechanism 300.

[0160] The locking mechanism 300 may include a shaft 302, a first actuator 310, a second actuator 320, a clamp assembly 330, a first actuator plate 370 and / or a second actuator plate 372, for example, such as Figure 15A and Figure 15B As shown. In some embodiments, shaft 302 is rotatable, which causes the first actuator 310 and the second actuator 320 to translate linearly along axis 120. Shaft 302 may extend along axis 120 and be coupled to the second actuator 320 and the first actuator 310, for example, via actuator plates 370, 372. Shaft 302 may include a first end 304, a second end 306, a first threaded portion 301, and a second threaded portion 308.

[0161] Shaft 302 is threadedly connected to a first fastener flange 395 along a first threaded portion 301 and threadedly connected to a second fastener flange 374 along a second threaded portion 308. Shaft 302 can be configured to be axially fixed relative to connecting member 110 such that shaft 302 does not move in a third direction 30 or a fourth direction 40. The first threaded portion 301 may have a first direction thread, such as clockwise, and the second threaded portion 308 may have a second direction thread, such as counterclockwise. Therefore, when shaft 302 rotates, the first threaded portion 301 causes the first fastener flange 395 to translate in a third direction 30, and the second threaded portion 308 causes the second fastener flange 374 to translate in a fourth direction 40 opposite to the third direction 30, for example, as Figure 16 As shown. In some embodiments, shaft 302 may rotate in opposite directions, such that the first fastener flange 395 translates in the fourth direction 40 and the second fastener flange 374 translates in the third direction 30.

[0162] In some embodiments, the second actuator 320 may include a second actuation surface 322 and an elongated aperture 324, for example, as Figure 15B and Figure 16 As shown. An elongated aperture 324 may be formed in the second actuator 320 along axis 120. The elongated aperture 324 may be sized to receive a second fastener flange 374. The second fastener flange 374 may be configured to engage with the front and rear surfaces of the elongated aperture 324 to transmit force and movement of the second fastener flange 374 to the second actuator 320.

[0163] In some implementations, the first actuator 310 may be coupled to a first actuator plate 370 and a second actuator plate 372, for example, as Figures 15A to 16 As shown. The first actuator plate 370 and the second actuator plate 372 may be identical or substantially similar, and include a first end 371, a second end 373 opposite to the first end 371, a translation slot 375 and / or an elongated recess 376, for example, as Figures 15A to 16 As shown. An elongated recess 276 may be formed in the actuating plates 370, 372 and configured to receive the shaft 302, the second threaded portion 308, and the second fastener flange 374. The length of the elongated recess 376 may be set to accommodate relative movement of the second fastener flange 374 and the actuating plates 370, 372 when the locking mechanism 300 moves between the locked position 50 and the unlocked position 60.

[0164] The translation slot 375 can pass through the actuator plates 370 and 372 and is formed on the rear side of the elongated recess 376, for example, as Figures 15A to 16 As shown. The translation slot 375 can be configured to receive the first fastener flange 295. In some embodiments, the first fastener flange 395 can be configured to engage with the front and rear surfaces of the translation slot 375, such that movement of the first fastener flange 395 is transmitted to the actuator plates 370, 372.

[0165] In some embodiments, the locking mechanism 300 may include a first spring 303 and / or a second spring 309, for example, as Figures 15A to 16 As shown. A first spring 303 may be disposed between a first fastener flange 395 and actuator plates 370, 372. A second spring 309 may be disposed between a second fastener flange 374 and a second actuator 220. The first spring 303 and the second spring 309 may be connected to shaft 202 and apply force to the second actuator 320 and the first actuator 310 via actuator plates 370, 372 to limit torque loss in the locking mechanism 300.

[0166] The interaction between the first fastener flange 395, the second fastener flange 374, the shaft 302, the second actuator 320, and the actuator plates 370 and 372 promotes opposite movement of the second actuator 320 relative to the first actuator 310 in the third direction 30 and the fourth direction 40, for example, as Figure 16 As shown. For example, shaft 302 can rotate, and the threaded engagement between the second fastener flanges 374 along the second threaded portion 308 allows the second fastener flange 274 to move along the shaft, causing the second actuator 320 to move in the fourth direction 40. Similarly, when shaft 302 rotates to move actuator plates 370, 372 and the first actuator 310 in a third direction 30 opposite to the fourth direction 40, the first fastener flange 395 can translate along the first threaded portion 301. The movement and interaction of locking mechanism 300 can continue until both clamping contact members 340, 350 of clamp assembly 330 are engaged with hook receiver 14 in locked position 50 and a desired frictional fit is formed between locking mechanism 300 and hook receiver 14.

[0167] refer to Figures 17A to 20 The locking mechanism 400 is shown. The locking mechanism 400 is configured for use in the load-bearing frame 100 and is substantially similar to... Figure 2A , Figure 2B and Figure 11 The locking mechanism 200 is shown in the figure. Therefore, similar reference numerals in the 400 series indicate common features between locking mechanism 200 and locking mechanism 400. The description of locking mechanism 200 and its assembly method is incorporated herein by reference to apply to locking mechanism 400, unless there is a conflict with the specific description and figures of locking mechanism 400.

[0168] The locking mechanism 400 may include a shaft 402, a first actuator 410, a second actuator 420, and / or a clamp assembly 430, for example, such as Figures 17A to 20 As shown. In some embodiments, shaft 402 is rotatable, causing the first actuator 410 to translate linearly along axis 120 toward the second actuator 420. Shaft 402 may extend along axis 120 through an aperture 423 in the second actuator 420 and be coupled to the first actuator 410. Shaft 402 may include a first end 404, a second end 406, a threaded portion 408 disposed at the first end 404, and / or a spring 409. Shaft 402 may be threadedly coupled to the first actuator 410 at the second end 406, such that rotation of shaft 402 moves the first actuator 410 in a third direction 30 or a fourth direction 40 depending on the direction of rotation of shaft 402.

[0169] Spring 409 can be coupled to shaft 402 and applies force to second actuator 420 to limit torque loss in locking mechanism 400. For example... Figure 17B In the exemplary embodiment shown, spring 409 may be fixed to shaft 402. In some embodiments, spring 409 may engage a second actuator 420 and apply a force in a fourth direction 40 to the second actuator.

[0170] The second actuator 420 may include a slot 421, a second actuating surface 422, and / or an aperture 423, for example, such as Figures 17A to 18 As shown. In some embodiments, a slot 421 may be formed through the second actuator 420. In some embodiments, the slot 421 may be configured to receive the clamp assembly 430. In some embodiments, a second actuating surface 422 may be disposed in the slot 421. In some embodiments, the second actuating surface 422 may be a surface angled relative to the axis 120 and may be configured to engage a second surface 452 of the clamp assembly 430. The second actuating surface 422 may be configured to convert axial movement of the second actuator 420 along the axis 120 into radial movement of the clamp assembly 430 in a first direction 10 and / or a second direction 20. In some embodiments, a retaining ring 425 may be fixed adjacent to the orifice 423 to the shaft 202 such that when the shaft 402 rotates to move the locking mechanism 400 to the unlocked position 60, the retaining ring 425 may cause the second actuator 420 to translate away from the first actuator 410 in a third direction 30.

[0171] In some embodiments, the first actuator 410 is configured to translate in a third direction 30 and / or a fourth direction 40, and to translate the clamp assembly 430 in a first direction 10 and a second direction 20 to engage and disengage with the hook-on receiver 14. The first actuator 410 may be disposed opposite to the second actuator 420 such that a first actuating surface 412 of the first actuator 410 faces a second actuating surface 422 of the second actuator 420, for example, as... Figure 18 As shown. The first actuator 410 may include a slot 411 and a first actuating surface 412, for example, as Figures 17A to 18 As shown. In some embodiments, a slot 411 may be formed through the first actuator 410. In some embodiments, the slot 411 may be configured to receive the clamp assembly 430. In some embodiments, a first actuating surface 412 may be disposed in the slot 411. In some embodiments, the first actuating surface 412 may be a surface angled relative to the axis 120 and may be configured to engage a first surface 442 of the clamp assembly 430. The first actuating surface 412 may be configured to convert axial movement of the first actuator 410 along the axis 120 into radial movement of the clamp assembly 430 in a first direction 10 and / or a second direction 20.

[0172] For example, such as Figure 19A and Figure 19BAs shown, the first actuator 410 and the second actuator 420 include elongated slots 411, 421 extending below a substantial portion of the clamp assembly 430. The elongated slots 411, 421 guide and support the clamp assembly 430 and release the volume of the connecting member 410 located below the shaft 402. For example... Figure 20 In the exemplary embodiment shown, the locking mechanism 400 is made using a plate assembly. In some embodiments, the actuating surfaces 412, 422 may be fasteners 414 that extend through the plate assembly to join adjacent sides forming slots 411, 421 together.

[0173] For example, such as Figure 21 As shown, the first actuator 410 and the second actuator 420 may be cylinders rotatably coupled to the inner surface 112 of the connecting member 110. The outer peripheral surface of the roller may form actuating surfaces 412, 422 to move the clamp assembly 430 in the first direction 10 and the second direction 20.

[0174] In some embodiments, the connecting member 110 may include an end cap 140 disposed at an end of the connecting member 110, for example, as Figure 2A , Figure 2B , Figure 22 and Figure 23 As shown. End cap 140 may be configured to prevent debris from entering the connecting member 110 and to support, guide, and / or center the first end 204 of the shaft 202. In some embodiments, end cap 140 may be an injection-molded part formed of plastic or other similar materials. End cap 140 may include a stop plate 150 extending through end cap 140. Stop plate 150 may be made of a rigid material, such as a metal (e.g., steel, stainless steel, iron, aluminum, tungsten, lead, titanium, etc.), metal oxide, ceramic, polymer, or other similar rigid material. As described above, stop plate 150 may be configured to engage the stop member 205 of shaft 202 during retraction of clamp assembly 230. Stop plate 150 has increased strength and rigidity than end cap 140, allowing stop plate 150 to accommodate greater loads from locking mechanism 200. In some embodiments, stop plate 150 extends through a slot 145 formed in end cap 140. In some embodiments, the stop plate 150 may include a locking plate 155 that extends substantially perpendicular to the stop plate 150 on the outer surface 114 of the connecting member 110. In some embodiments, the locking plate 155 may be configured to secure the handle 600 to the connecting member 110 when the handle 600 is in a storage configuration.

[0175] Example fixed pin assembly Figures 24 to 27CAn example of a retaining pin assembly 500 according to an embodiment is shown. The retaining pin assembly 500 can be configured to secure the load-bearing frame 100 to the hanger 14. Although the retaining pin assembly 500 is... Figures 24 to 27C The system is shown as a stand-alone system connected to the load carrier 100, but embodiments of this disclosure can be used with other devices and / or systems, such as, but not limited to, locking mechanisms 200, 300, 400 and handle assembly 600.

[0176] The retaining pin assembly 500 can be connected to the connecting member 110, for example, as... Figure 1 As shown. The retaining pin assembly 500 may include a pin body 510 having a free end 522 configured to insert into an aperture 165 through the connecting member 110 and an aperture 25 in the hook-and-loop receiver 14. Figure 24 and Figure 25 As shown in the exemplary embodiments, the retaining pin assembly 500 may include a self-locating pin body 510 for securing the retaining pin assembly 500 of the load carrier 100 to the hook-on receiver 14 of the vehicle 12. In some embodiments, the pin body may be made of a flexible or non-flexible material.

[0177] In some embodiments, the retaining pin assembly 500 may include a pin body 510, a load support 512, a spring 514, and / or a housing 516, for example, as Figure 24 and Figure 25 As shown. The retaining pin assembly 500 can be coupled to the connecting member 110. The connecting member 110 may include an insertable end 160 configured to insert into the hook receiver 14. The connecting member 110 may include an aperture 165 extending through the connecting member 110 and configured to receive the pin body 510 of the retaining pin assembly 500. In some embodiments, when the connecting member 110 of a desired length is inserted into the hook receiver 14, the aperture 25 of the hook receiver 14 may be aligned with the aperture 165 of the connecting member 110. The pin body 510 may be configured to insert through the aligned apertures 25, 165.

[0178] The retaining pin assembly 500 can be coupled to the connecting member 110 at a fixed distance from the free end 522 of the pin body 510, this fixed distance accommodating or enabling repeated identical positioning of the free end 522 of the pin body 510. The free end 522 may include a hook 524 configured to insert into aligned orifices 25, 165. The pin body 510 may be biased toward the connecting member 110 via a spring 514, such that the free end 522 can be automatically inserted into the orifices 25, 165. When the hook 524 of the pin body 510 is received by the orifices 25, 165 in the hook 14 and the connecting member 110, the load-bearing frame 100 can be coupled to the hook 14.

[0179] In some embodiments, the pin body 510 may include a fixed end 520 rotatably coupled to the bracket 512 and a free end 522 configured to insert into and secure to the hook receiver 14. In some embodiments, the pin body 510 may be a non-linear elongated body extending from the fixed end 520 to the free end 522. In some embodiments, the pin body 510 may be shaped to provide clearance to any flange or protrusion extending from the hook receiver 14. In some embodiments, the pin body 510 may be made of a bent metal strip. In some embodiments, the free end 522 may be oriented substantially perpendicular to the connecting member 110. The free end 522 may include a hook 524 configured to secure the free end 522 of the pin body 510 in an aperture 25 of the hook receiver 14.

[0180] The bracket 512 can be connected to the connecting member 110 and the pin body 510, for example, as Figure 25 As shown. The bracket 512 may include a top plate 526 and a mounting plate 528. In some embodiments, the mounting plate 528 may be fixedly coupled to the connecting member 110 to connect the retaining pin assembly 500 to the load-bearing frame 100. In some embodiments, the bracket 512 may be configured to transfer load from the pin body 510 to the connecting member 110. For example, a user may use the pin body 510 as a handle to lift the load-bearing frame 100, and the lifting load of the load-bearing frame 100 may be transferred from the pin body 510 to the connecting member 110 via the bracket 512. In some embodiments, the top plate 526 may extend generally perpendicular to the mounting plate 528 above the pin body 510. In some embodiments, the top plate 526 covers a portion of the pin body 510. In some embodiments, when the pin body 510 is used as a handle for the load-bearing frame 100, the pin body 510 engages the top plate 526 to transfer load from the pin body 510. In some implementations, the bracket 512 may include a base plate that is substantially similar to the top plate 526 but extends below the pin body 510.

[0181] For example, such as Figure 25 As shown, the pin body 510 is attached to the bracket 512 at attachment point 529. The pin body 510 can be rotatably attached at attachment point 529, allowing the pin body 510 to pivot about attachment point 529. In some embodiments, attachment point 529 is located at a fixed distance from the free end 522 of the pin body 510 and the front side 530 of the housing 516, such that when the pin body 510 is inserted into the hanger 14, the housing 516 is spaced apart from the hanger 14.

[0182] In some embodiments, spring 514 is coupled between pin body 510 and bracket 512 and is configured to bias the free end 522 of pin body 510 toward connecting member 110 and hanger 14. In some embodiments, spring 514 is coupled to bracket 512 at attachment point 529. Spring 514 may be a torsion spring, leaf spring, linear spring, or other suitable biasing member. Housing 516 is configured to cover bracket 512 and spring 514, as well as at least a portion of pin body 510, for example, as... Figure 24 As shown. The housing 516 may include a front surface 530 and an aperture 532 formed in the front surface 530. The pin body 510 may be configured to extend through and move within the aperture 532. In some embodiments, the retaining pin assembly 500 may automatically move between a loaded position and a locked position when the connecting member 110 is inserted into the hook receiver 14 at a fixed distance.

[0183] For example, such as Figures 26 to 27C As shown, the retaining pin assembly 500 may include a plate pin body 550. In some embodiments, the plate pin body 550 may be made of a bent metal plate, sheet, or other similar flat material. The plate pin body 550 may be coupled to the connecting member 110 and extend into the orifices 25, 165 of the hook receiver 14 and the connecting member 110. In some embodiments, the plate pin body 550 may be rotatably coupled to the connecting member 110 such that the plate pin body 550 can be rotated into a loading configuration in which the insertion end 540 of the plate pin body 550 extends below the connecting member 110 and the hook receiver 14 and is spaced apart from the connecting member and the hook receiver. In some embodiments, the plate pin body 550 may be configured to bend and / or deflect to move the insertion end 540 into and out of the orifices 25, 165.

[0184] like Figure 27A As shown in the exemplary embodiments, the insertion end 540 may include a pin 544 extending generally perpendicular to the insertion end 540. In some embodiments, the pin 544 is integral with the pin body 550 and is bent relative to the insertion end 540 to be oriented toward the connecting member 110. In some embodiments, the pin 544 may include a hook shape. Figure 27B As shown, the insertion end 540 of the pin body 550 may include a bolt 542, which extends substantially perpendicular to the insertion end 540 toward the connecting member 110. In some embodiments, the bolt 542 may be attached to the insertion end 540 by means of adhesive, welding or other suitable connection methods using a nut.

[0185] like Figure 27CAs shown in the exemplary embodiments, the pin body 550 can be coupled to the connecting member 110 via an elongated fastener 560. In some embodiments, the pin body 550 may include a spring 562 disposed between the head 561 of the elongated fastener 560 and the pin body 550. In some embodiments, the pin body 550 is configured to translate along the elongated fastener 560 such that the insertion end 540 translates into and out of the orifices 25, 165 of the hook receiver 14 and the connecting member 110. In some embodiments, the pin body 550 may be configured to translate and bend to move the insertion end 540 into and out of the orifices 25, 165. In some embodiments, the spring 562 may be configured to bias the pin body 550 toward the connecting member 110 and bias the insertion end 540 into the orifices 25, 165.

[0186] Example controller component Figures 28 to 31 A handle assembly 600 according to an embodiment is illustrated. The handle assembly 600 can be configured to limit the torque applied to the shaft 202. Although the handle assembly 600 is... Figures 28 to 31 The system is shown as a stand-alone system connected to the load-bearing frame 100, but embodiments of this disclosure can be used with other devices and / or systems, such as, but not limited to, locking mechanisms 200, 300, 400 and fixing pin assembly 500.

[0187] The handle assembly 600 is connectable to the shaft 202 and configured to rotate the shaft 202 to operate the locking mechanisms 200, 300, and 400. The handle assembly 600 may include a handle body 610, a control ring 612, a first torque arm 614, and / or a ratchet mechanism 618, for example, as... Figure 28 and Figure 29 As shown. The control ring 612 is connected to the shaft 202 via a ratchet mechanism 618 and is configured to rotate with the shaft 202. The first torque arm 614 is movably connected to the handle body 610 and is configured to move with the handle body 610.

[0188] In some embodiments, the first torque arm 614 may be releasably engaged with the control ring 612, such that when the first torque arm 614 engages the control ring 612, the handle body 610 rotates the shaft 202, and when the first torque arm 614 disengages from the control ring 612, the handle body 610 rotates independently of the shaft 202. The engagement of the first torque arm 614 and the control ring 612 may be torque-limited, such that when a first torque below the limit torque is applied to the handle body 610, the first torque arm 614 remains engaged with the control ring 612, and when a second torque greater than the first torque and exceeding the limit torque is applied to the handle body 610, the first torque arm 614 disengages from the control ring 612. This can help avoid applying excessive torque to the shaft 202 and causing damage to the shaft 202 or the mechanisms attached to the shaft 202.

[0189] In some embodiments, the limiting torque is between 5 Nm and 50 Nm. In some embodiments, the limiting torque is between 10 Nm and 25 Nm. In some embodiments, the limiting torque is approximately 15 Nm. In some embodiments, the limiting torque is approximately 20 Nm.

[0190] In some embodiments, the handle body 610 may include a cover plate 620, a mechanism housing 622, and / or a lever 624 extending away from the mechanism housing 622, for example, as Figure 28 and Figure 29 As shown. A cover plate 620 may extend over the mechanism housing 622 and lever 624 to cover the internal components of the handle assembly 600. In some embodiments, the mechanism housing 622 may be generally concentric with the shaft 202. In some embodiments, the lever 624 may extend radially outward from the mechanism housing 622. The lever 624 may be configured to be gripped by a user, allowing the user to apply a rotational force to the handle assembly 600. In some embodiments, the lever 624 may be a knob or a slotted handle. In some embodiments, the lever 624 may be replaced by a tool such as a wrench. In some embodiments, a slot 626 may be formed in the cover plate 620 and may extend in the direction of the lever 624.

[0191] In some embodiments, the control ring 612 may be disposed within the mechanism housing 622 and configured to rotate with the shaft 202. The control ring 612 may include a recess 630 disposed in the outer periphery 638 of the control ring 612, and a plurality of teeth 636 disposed around the inner periphery of the control ring 612, for example, as... Figure 29As shown. Multiple teeth 636 may be configured to engage with a ratchet mechanism 618. A recess 630 may be configured to receive the protruding end 650 of a first torque arm 614. The recess 630 may have a shape that limits the torque that can be applied to the shaft 202. In some embodiments, the control ring 612 may include multiple recesses 630 disposed around the outer periphery 638 of the control ring 612. In some embodiments, the recesses 630 may be equidistantly spaced around the control ring 612. In some embodiments, the recesses 630 may be formed in pairs on opposite sides of the control ring 612.

[0192] In some embodiments, the recess 630 may have an arc with a compound radius, such that a first portion 632 of the recess 630 can limit torque in a first direction, and a second portion 634 can allow the handle body 610 to rotate freely relative to the axis 202 in a second direction opposite to the first direction. For example, the first portion 632 of the recess 630 may be generally perpendicular to the outer periphery 638 of the control ring 612, such that the protruding end 650 requires at least a limiting torque to slide on the first portion 632 to disengage the first torque arm 614 from the control ring 612. In some embodiments, the first portion 632 of the recess 630 may be at an angle to the outer periphery 638 of the control ring 612 or have a transition radius, such that the limiting torque is reduced to allow the protruding end 650 to slide on the recess 630. In some embodiments, when a first torque below the limiting torque is applied to the handle body 610, the shape of the first portion 632 of the recess 630 can retain the protruding end 650 in the recess 630. In some embodiments, the second portion 634 of the recess 630 may extend toward the outer periphery 638 of the control ring 612 at a shallow angle or large radius that merges with the outer periphery 638. In some embodiments, only a third torque, less than the first torque and the limiting torque, is required to cause the protrusion 650 to slide on the second portion 634, thereby disengaging the first torque arm 614 from the control ring 612.

[0193] In some embodiments, the first torque arm 614 may be movably coupled to the handle body 610 and translate relative to the handle body 610 to engage and disengage with the control ring 612. The first torque arm 614 may include a protruding end 650 and a spring 652 configured to bias the protruding end 650 toward the control ring 612, for example, as... Figure 28 and Figure 29As shown. A first torque arm 614 may be configured to engage with a control ring 612 to prevent relative rotation between the control ring 612 and the handle body 610 when a first torque less than a limiting torque is applied to the handle body 610. The first torque arm 614 may be configured to slide on a recess 630 in the control ring 612 to allow relative rotation between the control ring 612 and the handle body 610 when a second torque greater than a limiting torque is applied to the handle body 610. In some embodiments, a protrusion 650 may be received in a slot 626 of a cover plate 620. In some embodiments, the slot 626 may be configured to linearly guide the protrusion 650 toward and away from the control ring 612. In some embodiments, a spring 652 may be coupled between the handle body 610 and the protrusion 650 such that the protrusion 650 may be biased toward the control ring 612. In some embodiments, the spring 652 may extend along a lever 624 and be visible along an elongated length of the slot 626. In some implementations, the spring force of spring 652 is adjustable to adjust the limiting torque of handle assembly 600. For example, spring 652 can be compressed by a set screw attached to handle body 610, thereby increasing the spring force of spring 652 and the force applied to the protruding end 650 in recess 630. Increasing the spring force of spring 652 may require more torque to disengage the protruding end 650 from recess 630.

[0194] The ratchet mechanism 618 can be housed in the mechanism housing 622 and rotatably connected to the shaft 202 and the control ring 612, for example, as Figure 29 As shown. The ratchet mechanism 618 can be configured to control the rotation of the handle body 610 relative to the axis 202 to improve the user operability of the handle assembly 600. The ratchet mechanism 618 may include a rocker arm 660 that engages a plurality of teeth 636 of a control ring 612. In some embodiments, the rocker arm 660 can rotate between a clockwise configuration and a counterclockwise configuration to allow the teeth 636 to slide on the rocker arm 660 in a first direction and engage with the rocker arm 660 in a second direction, or the teeth 636 to slide on the rocker arm 660 in the second direction and engage with the rocker arm 660 in the first direction.

[0195] In some embodiments, the handle assembly 600 may include a first torque arm 614 and / or a second torque arm 616, for example, as Figure 30 and Figure 31 As shown. Figure 30 and Figure 31As shown in the exemplary embodiments, the handle body may include a first lever 624 and a second lever 625, the second lever extending away from the mechanism housing 622 in the opposite direction to the first lever 624. In some embodiments, each torque arm 614, 616 extends into each corresponding lever 624, 625. In some embodiments, the handle assembly 600 may include more than two levers and two torque arms.

[0196] The second torque arm 616 can be substantially similar to, for example... Figure 31 The first torque arm 614 is shown. It may be advantageous for the handle assembly 600 to have two or more torque arms 614, 616 to increase torque limiting, allowing a large torque to be applied to the handle assembly 600 before the torque arms 614, 616 slide on the recesses 630 in the control ring 612. In some embodiments, the recesses 630 are located on opposite sides of the control ring 612, such that the first torque arm 614 and the second torque arm 616 are simultaneously located in the recesses 630. In some embodiments, the recesses 630 are not located on opposite sides of the control ring 612, such that only one of the first torque arm 614 and the second torque arm 616 is located in the recesses 630 at any given time, and the engagement frequency between the torque arms 614, 616 and the control ring 612 is increased.

[0197] In some embodiments, the second torque arm 616 may be movably coupled to the lever 625 of the handle body 610 and translate relative to the handle body 610 to engage and disengage with the control ring 612. The second torque arm 616 may include a protruding end 654 and a spring 656 configured to bias the protruding end 654 toward the control ring 612, for example, as... Figure 31 As shown. In some embodiments, a spring 656 may be connected between a lever 625 and a protrusion 654 on the handle body 610, such that the protrusion 654 may be biased toward the control ring 612.

[0198] In some embodiments, the load carrier 100 may include a handle assembly 670 that uses a linkage assembly to apply a desired torque to the locking mechanism 200, for example, as... Figure 32 and Figure 33As shown. In some embodiments, the handle assembly 670 may be a knee handle, such that actuation of the handle assembly 670 moves the first actuator 210 in a third direction 30 and moves the second actuator 220 in a fourth direction. In some embodiments, the handle assembly 670 is coupled to the connecting member 110 and includes a handle 671 extending below the connecting member 110 toward the ground. In some embodiments, the handle 671 is pushed downward to move the locking mechanism to a locked position 50. In some embodiments, the handle 671 may extend above the connecting member 110 away from the ground. In some embodiments, the handle 671 is pulled upward to move the locking mechanism into the locked position 50.

[0199] In some implementations, the handle assembly 670 may include a fine-tuning screw 672, for example, as... Figure 32 and Figure 33 As shown. The fine-tuning screw 672 adjusts the torque load of the handle assembly such that when the handle 671 is actuated, the desired torque is applied to the locking mechanism 200. In some embodiments, the fine-tuning screw 672 can be used to adjust tolerances between different hooks 14 during the initial attachment of the load carrier 100 to the hook receiver 14. In some embodiments, after initial attachment and setting of the fine-tuning screw 672, the user only needs to actuate the handle 671 when securing the load carrier 100 to the hook receiver 14.

[0200] In some embodiments, the handle assembly 671 can be advantageous because it can reduce the time required to secure the load carrier 100 to the hook receiver 14. In some embodiments, the handle assembly 671 can also reduce the need for repeated slight lifting or pushing of the load carrier 100 during tightening, which may be required with existing load carriers when tightening with a threaded rod to ensure a good fit between the connecting member 110 and the hook receiver 14.

[0201] It should be understood that the Detailed Description section, rather than the Summary and Abstract section, is intended to interpret the claims. The Summary and Abstract section may illustrate one or more, but not all, exemplary embodiments of the load-bearing frame and locking mechanism conceived by the inventors, and therefore is not intended to limit the embodiments and the appended claims in any way.

[0202] The present disclosure has been described above using functional building blocks that illustrate specific implementations of functions and their relationships. For ease of description, the boundaries of these functional building blocks are arbitrarily defined herein. Alternative boundaries may be defined as long as the specified functions and their relationships are properly performed.

[0203] The foregoing description of the specific embodiments so fully reveals the general nature of the invention that others, by applying knowledge within the scope of the art, can readily modify and / or adapt various applications of such specific embodiments without departing from the general concept of this disclosure, without excessive experimentation. Therefore, based on the teachings and guidance presented herein, such adaptations and modifications are intended to fall within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology herein is for descriptive rather than limiting purposes, and that the terminology or terminology of this specification will be interpreted by those skilled in the art based on the teachings and guidance.

[0204] The breadth and scope of this disclosure should not be limited by any of the exemplary embodiments described above, but should be defined solely by the appended claims and their equivalents.

Claims

1. A hanging-mounted load-bearing frame, the hanging-mounted load-bearing frame comprising: A connecting member configured to be inserted into a hook-and-loop receiver; and A locking mechanism, coupled to the connecting member and configured to secure the connecting member inside the hook-and-loop receiver, the locking mechanism comprising: The first actuator is disposed inside the connecting member; A second actuator, which is opposite to the first actuator and disposed inside the connecting member; A shaft, the shaft being configured to move at least one of the first actuator and the second actuator; and A clamp assembly including a first contact member and a second contact member, wherein the first contact member and the second contact member are configured to engage the inner surface of the hook-on receiver.

2. The hook-and-mount load-bearing frame of claim 1, wherein a first surface of the clamp assembly contacts the first actuator, and a second surface of the clamp assembly contacts the second actuator, and wherein the first actuator and the second actuator are configured to translate the clamp assembly.

3. The hanging-mount load-bearing frame according to claim 2, wherein at least one of the first surface and the second surface has an arcuate shape.

4. The hook-mounted load-bearing frame according to claim 1, wherein the clamp assembly includes a first clamp and a second clamp.

5. The hang-mounted load-bearing frame according to claim 4, wherein the first clamp moves independently of the second clamp in a first direction.

6. The hook-and-mount load-bearing frame of claim 4, wherein one of the first clamp or the second clamp includes a protrusion, and the other of the first clamp and the second clamp includes a recess configured to receive the protrusion.

7. The hook-mounted load-bearing frame according to claim 6, wherein when the protrusion engages the recess, the first clamp and the second clamp move together.

8. The hook-and-mount load-bearing frame of claim 1, wherein the first clamp includes a first sidewall and the second clamp includes a second sidewall configured to engage the first sidewall and transfer load from the second clamp to the first clamp or receive load from the first clamp.

9. The hang-mount load-bearing frame according to claim 1, wherein the clamp assembly further includes a bridging member connecting the first contact member and the second contact member.

10. The hang-mount load-bearing frame according to claim 1, wherein the locking mechanism is arranged between the opposite corners of the connecting members.

11. The hang-mount load-bearing frame of claim 1, wherein a first opening and a second opening are formed through the connecting member, and wherein the first contact member extends through the first opening and the second contact member extends through the second opening.

12. The hook-mounted load carrier of claim 1, further comprising a spring coupled to the clamp assembly and in contact with the inner surface of the connecting member, wherein the spring is configured to bias the clamp assembly away from the inner surface of the hook-mounted receiver.

13. The hang-mounted load-bearing frame according to claim 1, wherein the shaft includes a first threaded portion and a second threaded portion.

14. The hook-and-mount load-bearing frame of claim 13, wherein the first threaded portion is coupled to the first actuator and configured to move the first actuator in a first direction, and wherein the second threaded portion is coupled to the second actuator and configured to move the second actuator in a second direction opposite to the first direction.

15. The hook-and-mount load carrier of claim 1, wherein the first actuator includes a slot configured to receive the clamp assembly, and wherein the slot includes an inclined surface configured to engage the clamp assembly.

16. A hook-mounted load-bearing frame, the hook-mounted load-bearing frame comprising: A connecting member configured to be inserted into a hook-and-loop receiver; and A locking mechanism, coupled to the connecting member and configured to secure the connecting member inside the hook-and-loop receiver, the locking mechanism comprising: The first actuator is disposed inside the connecting member; A second actuator, which is opposite to the first actuator and disposed inside the connecting member; An actuator plate, which is coupled to the first actuator and configured to move the first actuator; A shaft, configured to move at least one of the second actuator and the actuator plate; and A clamp assembly movably engages with the first actuator and the second actuator, wherein the clamp assembly is configured to engage the inner surface of the hook-on receiver.

17. The hook-mounted load carrier of claim 16, wherein the actuator plate extends from the first actuator toward the shaft and overlaps with a portion of the clamp assembly and a portion of the second actuator.

18. The hook-and-mount load-bearing frame of claim 16, wherein the shaft is rotatably coupled to the second actuator and the fastener, wherein the fastener is coupled to the actuator plate, and wherein when the shaft rotates, the second actuator moves in a first direction, and the actuator plate moves in a second direction opposite to the first direction.

19. The hook-and-mount load carrier of claim 16, wherein the actuator plate includes a slot configured to receive a protrusion extending from the clamp assembly, and wherein the protrusion is movable within the slot to control movement of the clamp assembly.

20. The hang-mount load-bearing frame according to claim 19, wherein the slot extends at an angle relative to the length direction of the shaft.

21. A hook-mounted load-bearing frame, the hook-mounted load-bearing frame comprising: A connecting member, the connecting member including an insertable end configured to be inserted into a hook-and-loop receiver; and A retaining pin assembly includes a pin body movably coupled to the connecting member at a fixed distance from the insertable end of the connecting member, wherein the pin body includes a fixed end and a free end, the free end being configured to extend through aligned apertures formed in the connecting member and the hook-and-loop receiver. The pin body is biased to a locked position, in which the free end of the pin body is disposed within the internal space of the hook-and-loop receiver.

22. The hook-and-mount load-bearing frame of claim 21, wherein the fixing pin assembly further includes a load bracket connected to the connecting member, and wherein the pin body is rotatably connected to the load bracket.

23. The hook-and-mount load carrier of claim 22, wherein the load support is configured to transfer a vertical load from the pin body to the connecting member when the pin body is operated as a carrying handle for the hook-and-mount load carrier.

24. The hook-and-mount load-bearing bracket of claim 22, wherein the fixing pin assembly further comprises a spring connected to the pin body and the load support, wherein the spring is configured to bias the body to the locking position.

25. The hang-mount load-bearing frame according to claim 24, wherein the spring is a torsion spring.

26. The hook-and-mount load-bearing frame of claim 24, wherein the fixing pin assembly further includes a housing, and wherein a portion of the pin body, the load support, and the spring are disposed within the housing.

27. The hook-mounted load-bearing bracket of claim 21, wherein the free end of the pin body includes a hook configured to engage with the orifice of the hook-mounted receiver.

28. The hang-mount load-bearing frame according to claim 21, wherein the pin body is a non-linear slender body.

29. The hook-and-mount load-bearing frame of claim 21, wherein the pin body is formed of a metal sheet and configured to deflect to insert and remove the free end into and out of the orifice.

30. The hook-and-mount load-bearing frame according to claim 29, wherein the pin body is rotatably connected to the connecting member.

31. The hook-and-mount load-bearing frame of claim 29, wherein the fixing pin assembly further includes an elongated fastener coupled to the connecting member and a spring coupled to the elongated fastener, and wherein the pin body is movably coupled to the elongated fastener and biased away from the connecting member along the elongated fastener by the spring.

32. The hook-mounted load-bearing frame of claim 29, wherein the free end of the pin body includes a bolt configured to extend through the orifice of the connecting member and the hook-mounted receiver.

33. A torque limiting handle, the torque limiting handle comprising: A shaft, which is connected to a locking mechanism; handle body; A control ring, wherein the control ring is disposed in the handle body and connected to the shaft; and A torque arm, which is coupled to the handle body and biased to engage with the control ring. When the first torque is applied to the shaft, the torque arm prevents the control ring from rotating, and When a second torque greater than the first torque is applied to the shaft, the torque arm allows the control ring to rotate.

34. The torque limiting handle of claim 33, wherein the control ring includes a recess for receiving a protruding end of the torque arm, and wherein the recess is shaped to retain the protruding end in the recess when the first torque is applied to the shaft, and to push the protruding end out of the recess when the second torque is applied to the shaft.

35. The torque limiting handle of claim 34, wherein the shape of the recess comprises an arc having a plurality of radii.

36. The torque limiting handle of claim 34, wherein a first side of the recess extends substantially perpendicular to the periphery of the control ring, and a second side of the recess forms an arc that merges with the periphery of the control ring.

37. The torque limiting handle of claim 33, wherein the torque limiting handle further comprises a ratchet mechanism connected to the shaft and the control ring.

38. The torque limiting handle of claim 33, further comprising a spring extending along the length of the handle and coupled to the handle body and the torque arm.

39. The torque limiting handle of claim 33, wherein the torque arm includes a first torque arm and a second torque arm configured to engage the control ring.

40. The torque limiting handle of claim 39, wherein the control ring includes a plurality of recesses formed in pairs on opposite sides of the control ring, and wherein the first torque arm and the second torque arm engage two of the plurality of recesses.

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