Patent Description:
This disclosure generally relates to audio eyeglasses. More particularly, the disclosure relates to audio eyeglasses with through-hinge wiring.

Providing power and communications between components in electronic devices often involves running one or more cables through physically distinct sections of a housing or frame. In cases where the electronic device includes a hinge (e.g., in a wearable audio device) it can be challenging to design the hinge for accommodating the cable as well as the hinge mechanism.

<CIT> discloses audio eyeglasses with cable-through hinge.

The present invention relates to audio eyeglasses as set forth in claim <NUM>. Advantageous embodiments are recited in dependent claims of the appended set of claims.

It is noted that the drawings of the various implementations are not necessarily to scale. The drawings are intended to depict only typical aspects of the disclosure, and therefore should not be considered as limiting the scope of the invention.

As noted herein, various aspects of the disclosure generally relate to wearable audio devices such as audio eyeglasses or audio headsets with through-hinge wiring. More particularly, aspects of the disclosure relate to wearable audio devices having a hinge with an insert for managing a minimum bend radius of a cable and a cable management feature. In some cases, the hinge includes a metal ledge that extends around the interface between sections of the wearable audio device.

Commonly labeled components in the FIGURES are considered to be substantially equivalent components for the purposes of illustration, and redundant discussion of those components is omitted for clarity. Numerical ranges and values described according to various implementations are merely examples of such ranges and values, and are not intended to be limiting of those implementations. In some cases, the term "approximately" is used to modify values, and in these cases, can refer to that value +/- a margin of error, such as a measurement error. It is understood that the terms "inboard" and "outboard" are used to describe the radial location of components relative to the central axis (A), such that relative to the axis (A), a component that is radially inboard of a distinct component is closer to the central axis (A) on a radial (perpendicular) line that extends from the axis (A). The term "radially oriented" can be used to refer to a component, line, or plane that is perpendicular to an axis such as a central axis (A).

Components shown and described herein can be formed according to various manufacturing techniques, for example, molding, casting, additive manufacturing (e.g., 3D printing), etc. Where specific techniques are not described, conventional manufacturing approaches can be used to form the components and structures disclosed according to various implementations. Particular implementations include manufacturing approaches such as overmolding, where a first portion of the component (substrate) is partially or fully covered by a subsequently formed portion of the component (overmold).

Aspects and implementations disclosed herein may be applicable to a wide variety of speaker systems, such as wearable audio devices in various form factors, with particular application to audio eyeglasses or other head-mounted audio devices. Unless specified otherwise, the term wearable audio device, as used in this document, includes headphones and various other types of personal audio devices such as head, shoulder or body-worn acoustic devices that include one or more acoustic drivers to produce sound, with or without contacting the ears of a user. Some aspects disclosed may be particularly applicable to personal (wearable) audio devices such as audio eyeglasses or other head-mounted audio devices. It should be noted that although specific implementations of speaker systems primarily serving the purpose of acoustically outputting audio are presented with some degree of detail, such presentations of specific implementations are intended to facilitate understanding through provision of examples and should not be taken as limiting either the scope of disclosure or the scope of claim coverage.

Aspects and implementations disclosed herein may be applicable to speaker systems that either do or do not support two-way communications, and either do or do not support active noise reduction (ANR). For speaker systems that do support either two-way communications or ANR, it is intended that what is disclosed and claimed herein is applicable to a speaker system incorporating one or more microphones disposed on a portion of the speaker system that remains outside an ear when in use (e.g., feedforward microphones), on a portion that is inserted into a portion of an ear when in use (e.g., feedback microphones), or disposed on both of such portions. Still other implementations of speaker systems to which what is disclosed and what is claimed herein is applicable will be apparent to those skilled in the art.

Particular example implementations relate to off-ear headphones that produce sound using an acoustic driver that is spaced (or, separated) from the ear of the user while in use. Examples of off-ear headphones with dipole loudspeakers are disclosed in <CIT> and <CIT>, both of which are herein incorporated by reference in their entireties. Additional aspects of off-ear headphones are described in <CIT> and <CIT>, both of which are herein also incorporated by reference in their entirety. Additionally, designs of particular off-ear headphones are included in <CIT> (Attorney Docket No. OG-<NUM>-<NUM>-US), which is herein also incorporated by reference in its entirety. Even further, examples of wearable audio device hinges are disclosed in <CIT>, which is herein also incorporated by reference in its entirety.

The wearable audio devices disclosed herein can include additional features and capabilities not explicitly described. That is, the wearable audio devices described according to various implementations can include features found in one or more other wearable electronic devices, such as smart glasses, smart watches, etc., or any other wearable audio device where wiring to components (e.g., printed circuit board assembly/assemblies (PCBA) and/or other electronic components such as an electro-acoustic transducer) must pass through a hinge. These wearable audio devices can include additional hardware components, such as one or more cameras, location tracking devices, microphones, etc., and may be capable of voice recognition, visual recognition, and other smart device functions. The description of wearable audio devices included herein is not intended to exclude these additional capabilities in such a device.

<FIG> is a schematic depiction of a wearable audio device <NUM> according to various implementations. In this example implementation, the wearable audio device <NUM> is a pair of audio eyeglasses <NUM>. As shown, the wearable audio device <NUM> includes a frame <NUM> having a first section (e.g., lens section) <NUM> and at least one additional section (e.g., arm sections) <NUM> extending from the first section <NUM>. In this example, as with conventional eyeglasses, the first (or, lens) section <NUM> and additional section(s) (arms) <NUM> are designed for resting on the head of a user. In this example, the lens section <NUM> can include a set of lenses <NUM>, which can include prescription, non-prescription and/or light-filtering lenses, as well as a bridge <NUM> (which may include padding) for resting on the user's nose. Arms <NUM> can include a contour <NUM> for resting on the user's respective ears.

Contained within the frame <NUM> (or substantially contained, such that a component can extend beyond the boundary of the frame) are electronics <NUM> and other components for controlling the wearable audio device <NUM> according to particular implementations. In some cases, separate, or duplicate sets of electronics <NUM> are contained in portions of the frame, e.g., each of the respective arms <NUM> in the frame <NUM>. However, certain components described herein can also be present in singular form.

While various implementations described herein refer to wearable audio devices in the form of audio eyeglasses, it is understood that the disclosed principles can be equally applied to a number of wearable audio devices in different form factors. For example, <FIG> depicts another example wearable audio device <NUM> in the form of headphones <NUM>. In some cases, the headphones <NUM> include on-ear or around-ear headphones <NUM>. The headphones <NUM> can include a frame <NUM> with a first section (e.g., headband) <NUM> and at least one additional section (e.g., earcup(s)) <NUM> extending from the first section <NUM>. In various implementations, the headband <NUM> includes a head cushion <NUM>. Stored within one or both of the earcups <NUM> are electronics <NUM> and other components for controlling the wearable audio device <NUM> according to particular implementations.

<FIG> shows a schematic depiction of the electronics <NUM> contained within the frame <NUM> (<FIG>) and/or the frame <NUM> (<FIG>). It is understood that one or more of the components in electronics <NUM> may be implemented as hardware and/or software, and that such components may be connected by any conventional means (e.g., hard-wired and/or wireless connection). It is further understood that any component described as connected or coupled to another component in the wearable audio device <NUM> or other systems disclosed according to implementations may communicate using any conventional hard-wired connection and/or additional communications protocols. In various particular implementations, separately housed components in wearable audio device <NUM> are configured to communicate using one or more conventional wireless transceivers.

As shown in <FIG>, electronics <NUM> contained within the frame <NUM> (<FIG>) can include a transducer <NUM> (e.g., electro-acoustic transducer), an inertial measurement unit (IMU) <NUM> (optional, depicted in phantom), and a power source <NUM>. In various implementations, the power source <NUM> is connected to the transducer <NUM>, and can additionally be connected to the IMU <NUM>. Each of the transducer <NUM>, IMU <NUM> and power source <NUM> are connected with a controller <NUM>, which is configured to perform control functions according to various implementations described herein. Electronics <NUM> can include other components not specifically depicted herein, such as communications components (e.g., a wireless transceiver (WT)) configured to communicate with one or more other electronic devices connected via one or more wireless networks (e.g., a local WiFi network, Bluetooth connection, or radio frequency (RF) connection), and amplification and signal processing components. It is understood that these components or functional equivalents of these components can be connected with, or form part of, the controller <NUM>. In additional optional implementations, the electronics <NUM> can include an interface <NUM> coupled with the controller <NUM> for enabling functions such as audio selection, powering on the audio eyeglasses or engaging a voice control function. In certain cases, the interface <NUM> includes a button, a compressible interface and/or a capacitive touch interface. Various additional functions of the electronics <NUM> are described in <CIT>, previously incorporated by reference herein.

Shown in <FIG> and <FIG>, the wearable audio device <NUM> includes a hinge <NUM> coupling the first section (e.g., lens section <NUM> in <FIG>, or headband <NUM> in <FIG>) with the additional section(s) (e.g., arms <NUM> in <FIG>, or earcups <NUM> in <FIG>). In various implementations, the wearable audio device <NUM> includes multiple hinges <NUM>, e.g., between a lens section <NUM> and each of the arms <NUM> in the audio eyeglasses <NUM> (<FIG>), or between the headband <NUM> and each of the earcups <NUM> (<FIG>). In the example of the audio eyeglasses <NUM>, a portion of the hinge <NUM> can be fixed within a slot in the lens section <NUM>.

In various implementations, as noted herein, the hinge <NUM> is configured to enable wiring to run therethrough, for example, between sections in the wearable audio device <NUM>. As described herein, one or more portions of the frame <NUM>, as well as the hinge <NUM>, can be formed substantially of a plastic or composite material.

Turning to <FIG>, a cut-away perspective view of the hinge <NUM> is shown according to various implementations. In the example depiction of the audio eyeglasses <NUM> in <FIG>, the hinge <NUM> is shown joining the lens section <NUM> with arms <NUM>. In particular cases, the hinge <NUM> is integral with each of the arm(s) <NUM>. In other implementations, portions of the hinge <NUM> are integral with each of the lens section <NUM> and the arms <NUM>, respectively. In the depiction of the hinge <NUM> in <FIG>, the hinge <NUM> is in a substantially open position. As discussed further herein, the hinge <NUM> can permit movement (e.g., pivoting) of the first section of the wearable audio device <NUM> (<FIG> and <FIG>) relative to an additional section of the wearable audio device <NUM>, but can be configured to accommodate a cable <NUM> extending through the hinge <NUM>, e.g., to connect to one or more components in the electronics <NUM> (<FIG>) in device sections. <FIG> illustrates a different cut-away perspective view of the hinge <NUM>, removing illustration of the hinge mechanism and cable management feature that are present in <FIG>. <FIG> shows the hinge <NUM> during a preliminary formation process. <FIG> is a perspective view of a portion of the hinge <NUM> and the cable <NUM> where the cable <NUM> enters the arm <NUM> of the audio eyeglasses <NUM> in <FIG>. These FIGURES are referred to simultaneously.

As illustrated in <FIG>, the hinge <NUM> includes a body <NUM> defining a cavity <NUM> for accommodating the cable <NUM>. The body <NUM> can be formed of one or more conventional materials used in the eyeglasses industry, such as plastics or composites. The cavity <NUM> is sized to accommodate the cable <NUM> extending therethrough, i.e., the cavity <NUM> has a first opening <NUM> to a pathway <NUM> (obstructed in these views) in the first section (e.g., lens section <NUM>, <FIG>) and a second opening <NUM> to an additional pathway <NUM> (obstructed in these views) in the additional section (e.g., arm section <NUM>, <FIG>). In various implementations, the cable <NUM> includes a flexible printed circuit (FPC) for connecting different components in the electronics <NUM>, and/or connecting electronics <NUM> in different sections of the wearable audio device <NUM> (<FIG>, <FIG>). In certain implementations where the cable <NUM> includes an FPC, that FPC can include a single-layer or multi-layer FPC. In other cases, the cable <NUM> includes one or more wire(s), or one or more cable(s), which may be packaged in an assembly. In some particular cases, the cable <NUM> (e.g., FPC, wire(s), and/or cable(s)) is thinner in a region contained within the hinge <NUM> than in a distinct region within the pathway <NUM> or the additional pathway <NUM>. In these implementations where the cable <NUM> has a nonuniform thickness, thinner section(s) of the cable <NUM> reside within the hinge <NUM> than in other sections of the wearable audio device <NUM>.

The hinge <NUM> includes an insert <NUM> located within the body <NUM> that is adjacent to the second opening <NUM>. In particular cases, the insert <NUM> has an arcuate surface <NUM> that faces an opposing inner wall <NUM> of the cavity <NUM>. However, in other cases, the arcuate surface <NUM> is a beveled or chamfered edge between approximately perpendicular sides <NUM>, <NUM> (<FIG>) of the insert <NUM>. As described herein, the insert <NUM> defines a minimum radius of a bend <NUM> (<FIG>, <FIG>) in the cable <NUM> within the cavity <NUM>. In particular cases, the arcuate surface <NUM> defines the minimum radius of the bend <NUM> in the cable <NUM>, such that the cable <NUM> contacts the arcuate surface <NUM> along approximately an entirety of the length of that surface <NUM>. The minimum radius of this bend <NUM> is defined within the hinge <NUM>. That is, the hinge <NUM> is overmolded on the cable <NUM> such that the body <NUM> surrounds the portion of the cable <NUM> extending through the cavity <NUM>. Additionally, the body <NUM> of the hinge <NUM> is overmolded on the insert <NUM>, such that the body <NUM> surrounds the insert <NUM>. In particular implementations, the body <NUM> includes an overmolded plastic, and the insert <NUM> is non-unitary with the body <NUM>. That is, the insert <NUM> and the body <NUM> are originally formed as separate components. In certain cases, the body <NUM> and/or the insert <NUM> are formed of a plastic such as polycarbonate, acrylonitrile butadiene styrene, and/or polyamide. In particular implementations, the insert <NUM> is more rigid than the body <NUM>, however, this is not necessary in all implementations. In various embodiments, the insert <NUM> fits in a slot <NUM> in the body <NUM>. In other particular implementations, the insert <NUM> is insert-molded into the body <NUM>, e.g., at the slot <NUM>.

In certain implementations, the hinge <NUM> further includes one or more adhesive strip(s) <NUM> that couple the cable <NUM> to the hinge body <NUM>. In certain implementations, the hinge <NUM> includes two distinct adhesive strips <NUM> coupling the cable <NUM> to distinct portions of the hinge body <NUM>. In some cases, a first adhesive strip <NUM> couples the cable <NUM> to the body <NUM> proximate the second opening <NUM>, e.g., ahead of the bend <NUM> when viewed from the second opening <NUM> into the body <NUM>. This first adhesive strip 550A (<FIG>) can be coupled to a first interior wall <NUM> of the body <NUM> that is located adjacent the insert <NUM>. A second example adhesive strip 550B is shown coupling the cable <NUM> to a second interior wall <NUM> of the body <NUM> that is located past the bend <NUM> when viewed from the first opening <NUM> into the body <NUM>. That is, the adhesive strips <NUM> couple the cable <NUM> to the body <NUM> on both sides of the insert <NUM>. In some cases, the adhesive strips <NUM> couple the cable <NUM> to the body <NUM> on opposite sides of the cable <NUM>. <FIG> illustrates the cable <NUM> with adhesive strips <NUM> and the insert <NUM> prior to applying the second adhesive strip 550B to the second interior wall <NUM>. <FIG> illustrates the cable <NUM> after the second adhesive strip 550B is coupled with the second interior wall <NUM>. <FIG> shows the cable <NUM> in isolation with the insert <NUM> in a portion of the body <NUM>, for example, to illustrate the bend <NUM>.

Returning to <FIG>, it is understood that the minimum radius of the bend <NUM> is controlled by the insert <NUM> within the body <NUM> of the hinge <NUM>, such that the cable <NUM> is bent at a defined radius prior to exiting the hinge <NUM>, e.g., at the opening <NUM>. This is in contrast to conventional overmolded cable configurations, where poorly defined bending occurs at the entry/exit of the component (e.g., hinge) or in a portion of the device where the cable is exposed. This can cause stress on the cable, as well as expose the cable to unwanted ambient conditions. That is, the overmolded cable configuration in the wearable audio devices <NUM> depicted herein can control the minimum radius of the bend <NUM> in the cable <NUM>, which in certain implementations, is located within the body of the hinge <NUM>, e.g., prior to exiting the hinge <NUM>.

With continuing reference to <FIG>, the wearable audio device <NUM> further includes a hinge mechanism <NUM> contained within the body <NUM>. The hinge mechanism <NUM> includes a spring, a set of interlocking arms or a tension member for enabling controlled movement of the second section (e.g., arm section <NUM>) relative to the first section (e.g., lens section <NUM>). It is understood that the hinge mechanism <NUM> can include any hinge component(s) that permit controlled rotation of a first section relative to a second section. In certain cases, as illustrated in the example in <FIG>, the hinge mechanism <NUM> includes a spring (e.g., coil spring) <NUM> with a pair of lever arms <NUM> for controlling movement of the arm section <NUM> relative to the lens section <NUM>. In certain cases, the spring <NUM> controls movement around a pin <NUM> or other pivot point (pin slot <NUM> shown in <FIG> and <FIG>). In particular cases, the hinge mechanism <NUM> has a primary axis (Ap) about which the arm section <NUM> moves relative to the lens section <NUM>. In some cases, where the hinge mechanism includes a spring <NUM>, the primary axis (Ap) is the axis about which the lever arms pivot (or, rotate). In some examples, the cable <NUM> wraps around the hinge mechanism <NUM> radially outboard relative to the primary axis (Ap).

The wearable audio device <NUM> further includes a cable management feature <NUM> contained within the body <NUM> of the hinge <NUM>. In some cases, the cable management feature <NUM> utilizes the pin <NUM> extending vertically through the hinge <NUM> about which the cable <NUM> is routed. The cable management feature <NUM> includes an arm <NUM> that extends within the cavity <NUM> and controls movement of the cable <NUM> as the arm <NUM> moves relative to lens section <NUM> (e.g., in the example depiction in <FIG>). For example, the arm <NUM> can include a hook-shaped tab with a first section <NUM> and a second section <NUM> extending from the first section <NUM> at an angle. In particular implementations, the sections of the arm <NUM> form an arcuate interface <NUM> for introducing a second bend <NUM> in the cable <NUM>. In some examples, as illustrated in <FIG>, as the arm (of the audio eyeglasses) <NUM> moves relative to the lens section <NUM>, the arm (of the cable management feature) <NUM> contacts a surface of the cable <NUM> and maintains the second bend <NUM> in the cable <NUM>. In certain implementations, the cable management feature <NUM> remains in contact with the cable <NUM> throughout approximately an entire range of motion of the hinge <NUM>.

As shown in <FIG>, the hinge mechanism <NUM>, cable management feature <NUM> and cable <NUM> are all located in a common plane (P) which is radially oriented relative to the primary axis (Ap) of the hinge mechanism <NUM>, that is, the common plane (P) is perpendicular to the primary axis (Ap). In other words, a common plane (P) exists that runs perpendicular to the primary axis (Ap) and intersects each of the hinge mechanism <NUM>, cable management feature <NUM> and cable <NUM>. This is in contrast to conventional hinge mechanisms that dedicate separate axially oriented space to cable management, hinge mechanism and/or cable(s). In various implementations, aligning components in a common plane (P) can reduce the footprint of the hinge <NUM>, simplify manufacturing processes for the hinge <NUM>, and/or improve the robustness of the hinge <NUM>.

<FIG> shows an additional implementation of an audio device <NUM>, for example, a pair of audio eyeglasses <NUM>. In these cases, the audio eyeglasses <NUM> can include a number of common features with the audio eyeglasses <NUM> depicted and described with reference to <FIG> and <FIG>. Redundant explanation of these components is omitted.

The audio eyeglasses <NUM> depicted in <FIG> can include a hinge <NUM> similarly described with reference to <FIG> and <FIG> shows a cut-away view of a portion of the hinge <NUM> along with the second (e.g., arm) section <NUM> from the perspective of the inside of the arm <NUM>. <FIG> shows a portion of the hinge <NUM> coupled with the arm <NUM>, from the perspective of the outside of the arm <NUM>. These FIGURES are referred to simultaneously. In these implementations, the hinge <NUM> includes a hinge mechanism <NUM> that includes metal ledge <NUM> separating the first (or, lens) section <NUM> and each additional section (arm) <NUM>. In various implementations, the metal ledge <NUM> is visible around an entirety of an interface <NUM> (e.g., vertical interface) between the first section <NUM> and the additional section <NUM> while the hinge <NUM> is in the fully open position. The metal ledge <NUM> is illustrated as visible proximate the outer facing surface <NUM> as well as the top and bottom surfaces <NUM>, <NUM> of the arm <NUM> in <FIG>. In various particular implementations, the metal ledge <NUM> remains stationary and in contact with the arm <NUM> throughout an entire range of motion of the hinge <NUM>.

As shown in <FIG>, in these implementations, the hinge mechanism <NUM> is coupled with the arm <NUM> by a first set of mating features <NUM>. This first set of mating features <NUM> are further illustrated in <FIG> and <FIG>, which show a portion of the arm <NUM> in isolation. Mating features <NUM> on the hinge mechanism <NUM> are denoted with an "A", while mating features on the arm <NUM> are denoted with a "B". In this example, mating feature(s) 860A can include one or more slots while mating feature(s) 860B can include a protrusion such as a tab, bump or pillar, which in some cases includes a counter-bore for receiving a fastener <NUM> (<FIG>) such as a screw, bolt, pin, rivet, etc. In various implementations, the mating features 860A on the hinge mechanism <NUM> are sized to receive the mating features 860B on the arm <NUM>, e.g., as a male-female coupling. In certain cases, the mating features 860B on the arm <NUM> include an internal slot or groove <NUM> for receiving the fastener <NUM> (<FIG>). In particular aspects, the mating features 860A on the hinge mechanism <NUM> are part of a plate <NUM> that fits within a slot <NUM> in the arm <NUM>. The plate <NUM> can include a thinned section <NUM> extending through, and complementing, the slot <NUM>.

In various implementations, the hinge <NUM> additionally includes another set of mating features <NUM>, illustrated in detail in <FIG> and <FIG>. In these cases, the mating features <NUM> includes a set of ribs configured to improve the fit of the plate <NUM> within the recess in the arm <NUM>. In particular cases, these mating features <NUM> (e.g., ribs) are located along one or more interior surfaces of the arm <NUM>, and in some cases, such as illustrated with mating features 920A, are vertically aligned with mating features 860B on the arm <NUM>. Additionally, as shown in <FIG>, a mating feature <NUM> such as a rib can be located in the slot <NUM> to contact the thinned section <NUM>.

In certain implementations, as illustrated in <FIG>, the hinge <NUM> includes a cable management feature <NUM> located on a distinct side of the slot <NUM> from the mating features 860A, 860B. In certain implementations, the cable management feature <NUM> and the hinge mechanism <NUM> are unitary and formed of a metal. <FIG> shows a close-up perspective view of the hinge <NUM> including the cable <NUM>. As described with reference to hinge <NUM> in <FIG>, the cable management feature <NUM>, hinge mechanism <NUM> and cable <NUM> (<FIG>) in the hinge <NUM> are all located in a common plane (P).

In various implementations, the hinge <NUM> enables smooth, controlled movement of the arm <NUM> relative to the lens region <NUM> while obstructing the cable <NUM> from view. Additionally, the hinge <NUM> is configured to maintain the position of the metal ledge <NUM> through the entire range of motion.

According to various implementations, the hinges shown and described can enhance manufacturability, longevity and functionality relative to conventional audio device hinges. In various implementations, the hinges shown and described herein mitigate wear on the cable during use of the wearable audio device(s), and enable routing of the cable through the hinge while efficiently using vertical space. This enables a more compact, functional configuration when compared with conventional audio device cable-through hinges.

In various implementations, components described as being "coupled" to one another can be joined along one or more interfaces. In some implementations, these interfaces can include junctions between distinct components, and in other cases, these interfaces can include a solidly and/or integrally formed interconnection. That is, in some cases, components that are "coupled" to one another can be simultaneously formed to define a single continuous member. However, in other implementations, these coupled components can be formed as separate members and be subsequently joined through known processes (e.g., soldering, fastening, ultrasonic welding, bonding). In various implementations, electronic components described as being "coupled" can be linked via conventional hard-wired and/or wireless means such that these electronic components can communicate data with one another. Additionally, subcomponents within a given component can be considered to be linked via conventional pathways, which may not necessarily be illustrated.

Claim 1:
A wearable audio device (<NUM>), comprising:
a frame (<NUM>) for resting on a head of a user, the frame comprising:
a first section (<NUM>); an additional section (<NUM>) extending from the first section; a hinge (<NUM>) coupling the first section and the additional section; and a cable (<NUM>) extending through the hinge,
wherein the hinge is overmolded on the cable and comprises:
a body (<NUM>) defining a cavity (<NUM>) accommodating the cable, the cavity having a first opening (<NUM>) to a pathway (<NUM>) in the first section, and a second opening (<NUM>) to an additional pathway (<NUM>) in the additional section;
an insert (<NUM>) within the body and adjacent the second opening, the insert defining a minimum radius of a first bend (<NUM>) in the cable within the cavity;
a hinge mechanism (<NUM>) contained within the body, the hinge mechanism including a spring (<NUM>), a set of interlocking arms (<NUM>) or a tension member for enabling controlled movement of the additional section relative to the first section; and
a cable management feature (<NUM>) contained within the body, the cable management feature including an arm (<NUM>) that is arranged to extend within the cavity and to control movement of the cable as the additional section moves relative to the first section,
wherein the hinge mechanism, the cable management feature and the cable are all located in a common plane (P) that is radially oriented relative to a primary axis (Ap) of the hinge mechanism.