Holder for earpiece

Abstract

A retainer includes a retainer portion, a cantilever portion, and a locking feature. The retainer portion includes a tubular wall portion. The tubular portion extends about a central axis extending through a center of the holder. The cantilevered portion extends radially outward from the retainer portion. The locking feature includes a first alignment feature disposed along the tubular wall portion in a direction substantially parallel to the central axis.

Description

Technical Field

[0001] This disclosure relates to the field of in-ear audio devices, and more particularly to a retainer for a handset, a handset including such a retainer, and an in-ear audio device including at least one handset. Background Technology

[0002] Users wear in-ear headphones for extended periods during various activities (e.g., all day during their commute, work, and exercise). Therefore, in-ear headphones are becoming an increasingly important device in users' daily lives. However, prolonged wear of in-ear headphones can be uncomfortable. In-ear headphones may exert pressure on the ear canal or parts of the user's auricle (e.g., the outer wall of the concha). This can reduce wearing comfort in some cases. On the other hand, some holding force may be required to keep the in-ear headphones in place during various daily activities such as exercise and work. Given the use and prevalence of in-ear headphones, it is desirable to provide headphones that are comfortably and reliably positioned in the user's ear. Summary of the Invention

[0003] This disclosure relates to a retainer for an earpiece in an in-ear audio device, a component kit, an earpiece for an in-ear audio device, and an in-ear audio device, according to the independent claims. Advantageous embodiments are described in the dependent claims.

[0004] In one aspect, a retainer includes a retainer portion, a tubular wall portion, and a cantilever portion. The tubular portion extends about a central axis that extends through the center of the retainer. The retainer also includes a locking feature comprising a first alignment feature arranged along the tubular wall portion in a direction substantially parallel to the central axis.

[0005] Specific implementations may include one of the following features, or any combination thereof.

[0006] In some specific implementations, the first alignment feature is arranged at a position substantially aligned with the position of the maximum radius of the retainer.

[0007] In some specific implementations, the cantilever portion includes a first cantilever sub-portion and a second cantilever sub-portion.

[0008] In some cases, the retainer portion includes a first end and a second end, the second end being substantially opposite the first end. When the user wears the retainer, the first end is configured to be more medial than the second end (i.e., closer to the user's head, ear canal, and / or the base of the concha). A first alignment feature may be provided along the second end of the retainer portion.

[0009] In some cases, the first alignment feature includes an alignment key extending outward from the second end of the retainer portion.

[0010] In some examples, the first alignment feature includes an alignment notch extending from the second end toward the first end.

[0011] In some examples, the cantilever portion is connected to the retainer portion between the first end and the second end.

[0012] In some embodiments, the cantilever portion includes a connecting edge and a free edge substantially opposite the connecting edge. The cantilever portion is connected to the retainer portion at the connecting edge. The connecting edge is arranged closer to the first end than the second end. The free edge is arranged between the connecting edge and the second end.

[0013] In some specific implementations, the cantilever section includes a convex curved section between the connecting edge and the free edge.

[0014] In some cases, the retainer is configured such that when the user wears the retainer, the connecting edge is further inside than the free edge.

[0015] In some cases, the cantilever portion defines the groove shape. The groove shape is formed by the outer circumferential surfaces of the cantilever portion and the retainer portion.

[0016] In some examples, when the user wears the retainer, the bottom of the groove shape is further inside than the opening of the groove shape.

[0017] In some examples, the cantilever portion is configured to engage with at least a portion of the outer wall of the concha of the user's auricle.

[0018] In some implementations, the cantilever portion extends beyond approximately 30% to 70% of the entire circumference of the retainer portion.

[0019] In some specific embodiments, the cantilever portion includes a first cantilever portion and a second cantilever portion. The first cantilever portion is shaped to flexibly fit under the antitragus of the wearer's ear when the retainer is worn, and the second cantilever portion is shaped to flexibly fit under the antihelix of the wearer's ear when the retainer is worn. A first side of the first cantilever portion is primarily on a first plane, and a first side of the second cantilever portion is primarily on a second plane different from the first plane.

[0020] Another feature is a handset including a retainer and a housing configured to be coupled to the retainer. The housing includes a second alignment feature configured to align with a first alignment feature on the retainer to ensure a specific orientation of the cantilever portion of the retainer relative to the housing.

[0021] In some embodiments, the first alignment feature includes an alignment key extending outward from the second end of the retainer portion, and the second alignment feature includes an alignment notch configured to receive the alignment key.

[0022] In some specific implementations, the first alignment feature includes an alignment notch extending from the second end toward the first end, and wherein the second alignment feature includes an alignment key configured to engage the alignment notch.

[0023] In some cases, the housing also includes a recess configured to receive the tubular wall portion of the retainer.

[0024] In some cases, the groove extends around the outer circumference of the housing.

[0025] Additional details and features will be described below with reference to the accompanying drawings. Attached Figure Description

[0026] Other features will be apparent from the accompanying drawings, which form part of this disclosure. The drawings are intended to further explain the disclosure and enable those skilled in the art to practice it. However, the drawings are intended as non-limiting examples. Common reference numerals in the different drawings indicate the same or similar features.

[0027] Figure 1A It is a view of the side surface of the human ear;

[0028] Figure 1B and Figure 1C This is an exemplary cross-section of the human ear.

[0029] Figure 2A This is a side perspective view of a first embodiment of an in-ear earphone according to various aspects of the present disclosure, the in-ear earphone including a retainer, a housing, a mouthpiece, and an earplug;

[0030] Figure 2B , Figure 2C and Figure 2D yes Figure 2A The side view, rear view, and front view of the earpiece are shown.

[0031] Figure 3A This is a side view of a first embodiment of the retaining element according to various aspects of this disclosure;

[0032] Figure 3B Is it like this? Figure 3A Side perspective view of the first embodiment of the retainer shown;

[0033] Figure 3C This is a side view of the first embodiment of the retainer, relative to... Figure 3A Rotate 90° in the circumferential direction;

[0034] Figure 3D This is a bottom view of a first embodiment of the retainer according to various aspects of this disclosure;

[0035] Figure 3E In such Figure 3D A cross-sectional side view of the first embodiment of the retainer, taken at position AA, shows the cantilever portion in the disengaged state;

[0036] Figure 3F In such Figure 3D A cross-sectional side view of the first embodiment of the retainer, taken at position AA, shows the cantilever portion in the engaged state;

[0037] Figure 3G This is a top view of a first embodiment of the retaining element according to various aspects of this disclosure;

[0038] Figure 4A This is a side perspective view of a second embodiment of an in-ear earphone according to various aspects of the present disclosure, the in-ear earphone including a retainer, a housing, a mouthpiece, and an earplug;

[0039] Figure 4B Is it like this? Figure 4A Rear view of the second embodiment of the earpiece shown;

[0040] Figure 4C Is and like Figure 4A Front view of the mouthpiece attached to the second embodiment of the earpiece shown;

[0041] Figure 5A This is a side perspective view of a handset that engages with the user's auricle, according to various aspects of this disclosure;

[0042] Figure 5B This is a side perspective view of a retainer that engages with the user's auricle according to various aspects of this disclosure;

[0043] Figure 5C This is a top perspective view of the earpiece positioned in the user's ear according to various aspects of this disclosure;

[0044] Figure 6A This is a rear view of a second embodiment of the retainer according to various aspects of this disclosure;

[0045] Figure 6B This is a perspective side view of a second embodiment of the retaining element according to various aspects of this disclosure;

[0046] Figure 7 This is a perspective view of another embodiment of the retaining element;

[0047] Figure 8 It is configured to be with Figure 7A perspective view of the housing with retaining components connected to it;

[0048] Figure 9 It includes Figure 7 Retaining components and Figure 8 A perspective view of a third embodiment of an in-ear earphone housing;

[0049] Figure 10 This is a perspective view of a fourth embodiment of an in-ear earphone according to various aspects of the present disclosure, the in-ear earphone including a retainer, a housing, a mouthpiece, and an earplug;

[0050] Figure 11 This is a perspective view of a fifth embodiment of an in-ear earphone according to various aspects of this disclosure, the in-ear earphone including a retainer, a housing, a sound outlet, and an earplug; and

[0051] Figure 12 This is a perspective view of the sixth embodiment of the in-ear earphone. Detailed Implementation

[0052] Schemes for retainers, component kits, in-ear handsets, and in-ear audio devices will be described below with reference to the accompanying drawings. All examples and features mentioned herein can be combined in any technically possible manner. Other features, purposes, and advantages will become apparent from the following detailed description when read in conjunction with the accompanying drawings. The illustrated retainer and handset are shown engaging with the user's right ear. A retainer and handset configured to engage with the user's left ear is a mirror image of the retainer and handset described herein and operates according to the same principles.

[0053] Figures 1A to 1C The anatomical regions of the right human ear are shown, and some features are identified. The human ear comprises the outer ear, middle ear, and inner ear 380°. The outer ear, or lateral ear, is also referred to as the auricle or auricle 300°. It should be noted that many different ear sizes and geometries exist. For example, children may have smaller ears, which are smaller in size and geometry compared to adult ears. Some ears may have… Figure 1A Additional features not shown, or some ears may be missing. Figure 1A Some features are shown in the image. Some features may be more... Figure 1A The features shown are either more obvious or less obvious.

[0054] The auricle 300 is a nearly vestigial, normally fixed shell located near the side of the human head. It comprises a thin plate of elastic cartilage covered by tightly adhered skin. The cartilage is shaped into well-defined depressions, ridges, and grooves, forming an irregular, shallow funnel. The deepest recess leading directly to the external auditory canal 390, or the auditory canal, is called the concha 330. The concha 330 includes the concha cavity 332 (inferior concha) and the cymba conchae 331 (superior concha). The concha 330 is a fossa defined by the tragus 350, notch, antitragus 310, antihelix 320, inferior crus of the antihelix 370, and base of the helix 360. The inferior concha 330 is partially covered by two small projections: the anterior lingual tragus 350 and the posterior antitragus 310. Above the tragus is a prominent ridge, the helix 340, which arises from the base of the concha 330 and continues as the inner curved edge of the upper part of the auricle. Internally curved concentric ridges (i.e., antihelix 320) surround the concha 330 and separate the helix 340 through the groove, scaphoid fossa, and triangular fossa. Specifically, the antihelix 320 represents a fold of the concha cartilage. The outer wall of the concha 330 of the user's auricle 300 may at least partially include the antitragus 310 and / or the antihelix 320. In some examples, the outer wall of the concha 330 may be at least partially defined by ridges provided by the antitragus 310 and / or the antihelix 320. Optionally, the outer wall of the concha 330 may also include portions (or ridges provided by these portions) of the tragus 350 and / or the lower crura 370 of the antihelix. The trunk of the normal antihelix 320 (the portion below the bifurcation) is gently curved and branches about two-thirds of the way along its path to form a wide fold of the upper antihelix crura and a more sharply folded lower crura 370. The helix 340 is the outer edge of the ear, extending from the upper insertion point (root) of the ear on the scalp to the end of the cartilage at the earlobe. The earlobe (i.e., the fleshy lower part of the auricle 300) is the only area in the outer ear that does not contain cartilage. The scaphoid fossa is the groove between the helix 340 and the antihelix 320, while the tragus 350 is the posterior, slightly lower projection of the skin-covered cartilage located in front of the ear canal 390.

[0055] like Figure 1B and Figure 1C As shown, the external auditory canal 390 is a slightly curved tube that extends inward from the base of the concha 330 and has a blind end located at the tympanic membrane 381. In other words, the ear canal 390 is an irregularly shaped cylinder with a variable cross-sectional area and a non-linear centerline. In its outer third, the walls of the ear canal are composed of cartilage; in its inner two-thirds, the walls are composed of bone. The entire length of the canal (up to approximately 24 mm) is lined with skin, which also covers the outer surface of the tympanic membrane. The skin of the ear canal is highly sensitive to pain and pressure. In this specification, the entrance to the ear canal 390 refers to the portion of the ear canal near the base of the concha 330, where the walls of the ear canal 390 are not substantially parallel to the centerline 391a of the ear canal 390. The precise structure of the human ear varies widely from individual to individual. For example, in… Figure 1BIn the cross-section, there is a relatively abrupt transition from the ear canal wall that is not parallel to the center line 391a of the ear canal 390 to a wall that is substantially parallel to the center line of the ear canal 390, making the entrance region 392a of the ear canal 390 relatively short. Figure 1C In the cross section, there is a gentler transition from the ear canal wall that is not parallel to the center line 391b of the ear canal 390 to the wall that is substantially parallel to the center line 391b of the ear canal 390, making the entrance 392b of the ear canal 390 relatively long.

[0056] A thin, translucent tympanic membrane, or eardrum, forms the boundary between the outer and middle ear, extending obliquely across the end of the external auditory canal 390. The middle ear cavity is a narrow, air-filled space that includes the tympanic cavity 387. Passing through the middle ear cavity is a short chain of ossicles formed by three small bones that connect the tympanic membrane 387 to the oval window and the inner ear. From outside to inside, these are the malleus (hammer), incus (incus), and stapes (stapes). These bones are suspended by ligaments, allowing the ossicular chain to vibrate freely as it transmits sound from the tympanic membrane to the inner ear 380. The middle ear also includes the eustachian tubes 388, which help to ventilate the middle ear and maintain equal air pressure on both sides of the tympanic membrane. Among other things, the inner ear includes the semicircular canals 383, the vestibular nerve, the cochlea 382, ​​and the cochlear nerve 389.

[0057] Figures 2A to 2D Different views of a first embodiment of the in-ear earphone 10 are shown, and Figures 4A to 4C Different views of a second embodiment of the earpiece 10 are shown. Features described below with respect to the first embodiment are applicable to the second embodiment, and vice versa. Additionally, other embodiments not described also fall within the scope of the invention, provided they achieve the claimed features. The earpiece 10 may be included with an in-ear audio device. The earpiece 10 includes a housing 100 configured to engage at least a portion of a user's ear, more specifically a portion of the ear canal 390 and / or the user's auricle 300. The earpiece 10 also includes a retainer 200, which is coupled to the housing 100. This earpiece 10 can lead to a design that is comfortable, provides a gentle seal for noise reduction, distributes contact evenly across the user's ear (optionally, portions of the ear canal 390 and / or auricle 300) to avoid pressure points, and contributes to providing consistent acoustic performance while maximizing noise reduction.

[0058] The following will refer to Figures 2A to 3G A first embodiment of the retainer 200 is described, and reference will be made below. Figures 4A to 6B A second embodiment of the retainer 200 is described. For example, such as... Figure 3AAs shown, the retainer 200 includes a retainer portion 210 and a cantilever portion 220. The cantilever portion 220 includes a connecting edge 224 and a free edge 223 substantially opposite to the connecting edge 224. The cantilever portion 220 is engaged to the retainer portion 210 at the connecting edge 224. The cantilever portion 220 is configured to engage at least a portion of the outer wall of the concha 330 of the user's auricle 300, as will be described in detail below. The cantilever portion 220 includes a convex curved section between the connecting edge 224 and the free edge 223. When the cantilever portion 220 is engaged, the connecting edge 224 is more inward than the free edge 223. The retainer 200 is configured to optionally be engaged to the housing 100 of the earpiece 10 by means of the retainer portion 210. This retainer 200 comfortably holds the earpiece 10 in the user's ear (in an embodiment, in the user's ear canal 390 and / or a portion of the user's auricle 300). The retainer 200 provides orientation and stability without applying excessive radial pressure to a portion of the user's auricle 300, as will be explained in detail below. Orientation helps ensure that the earpiece 10 properly engages with the user's ear. Achieving stability means that, when properly engaged, the earpiece 10 remains in the user's ear with minimal movement. The described retainer 200 offers the advantages of allowing the earpiece to be comfortably worn in the user's ear for extended periods and also improves the fit or retention of the earpiece 10 in the user's ear during various activities.

[0059] An imaginary medial line (e.g., midline) may extend through the middle (or center) of the human body, along its length. Lateral orientation is a location away from the medial line of the body. For example, an arm is located lateral to the chest, and an auricle 300 is located lateral to the head. Medial orientation is a location towards the medial line of the body. An example of medial orientation is the eye, which is located lateral to the ear (e.g., auricle 300) on the head. In this context, "anterior" refers to the forward direction (towards the chest) when viewed from the medial line, and "posterior" refers to the rearward direction when viewed from the medial line. As defined above, when the retainer 200 (more specifically, the cantilever portion 220) is engaged, the connecting edge 224 is more medial than the free edge 223. In other words, when engaged, the connecting edge 224 is closer to the inner ear 380 and / or the medial line of the human body than the free edge 223. It should be noted that the definition of "inner side" can be applied to users with ordinary ears (more specifically, outer ears; e.g., auricle, concha, base of concha), which are generally parallel to or only slightly tilted relative to the inner line. However, other ears (more specifically, outer ears) with different geometries may exist, which may be more tilted relative to the inner line. In this case, the definition of "connecting edge 224 being more inner than free side 223" (and all other definitions of "inner side" in this disclosure) can be applied to different radial or circumferential positions of connecting edge 224 (in the rx plane) and the associated circumferential position of free edge 223 relative to the direction of the central axis x. However, the general idea that connecting edge 224 is closer (or more inner) to the inner ear 380 and / or the inner line of the human body than free edge 223 still applies in this case, even to a slightly lesser extent.

[0060] See Figure 2A and Figure 3B A coordinate system is defined for the retainer 200, which can also be applied to the earpiece 10. The retainer 200 includes a central axis x extending through the center of the retainer 200, a radial axis r extending in a radial direction of the retainer 200 perpendicular to the central axis x, and a circumferential axis u extending in a circumferential direction of the central axis x. The radial axis r may define a first radial direction r1 and a second radial direction r2, wherein the second radial direction r2 extends perpendicular to the first radial direction r1. In other words, the radial axis r may define a random radial direction of the retainer extending from the central axis x. The center and the associated central axis x may be the geometric center of the retainer portion 210. The first radial direction r1 may extend in a radial direction, wherein the retainer 200 has its maximum radius Rmax, measured from the central axis x to the outer contour 240 of the retainer 200.

[0061] As described above, the retainer 200, particularly the cantilever portion 220, can be in an engaged or disengaged state. The cantilever portion 220 is in a disengaged state when there is no contact between the cantilever portion 220 and the outer wall of the concha 330 of the user's auricle 300. In other words, in the disengaged state, the retainer 200 is not used, i.e., no external force acts on the retainer 200 (particularly on the cantilever portion 220) and / or no force is applied to the retainer 200. This is especially true when the retainer 200 is not engaged with the outer wall of the user's concha 330. When the retainer 200 is at least partially engaged with the user's concha 330, more specifically when the retainer 200 is inserted into the user's concha cavity, the cantilever portion 220 can be in an engaged state, wherein at least a portion of the cantilever portion 220 contacts at least a portion of the outer wall of the concha 330 of the auricle 300. In other words, the cantilever portion 220 can be in an engaged state when it contacts (or engages) at least partially with the outer wall of the concha 330 at the antitragus 320 and / or the antihelix 310, and / or at least partially with the ridge provided by the antihelix 310 and / or the antitragus 320. Unless otherwise stated, the geometry and characteristics of the retainer 200 and the earpiece 10 are described throughout the specification for the disengaged state.

[0062] The cantilever portion 220 extends radially outward from the retainer portion 210 (i.e., in the radial direction r as defined above). For example, the connecting edge 224 may be positioned more inwardly than the free edge 223 in the radial direction r. When the cantilever portion 220 is engaged, the connecting edge 224 is more inwardly positioned than the free edge 223. In other words, when the cantilever portion 220 is engaged and in the direction of the central axis x, the connecting edge 224 is closer to the base of the concha 330, and / or closer to the ear canal 390, and / or closer to the user's head than the free edge 223. The outer wall of the concha 330 as defined above may be at least one of the antitragus 310 and the antihelix 320 of the user's auricle. However, in other embodiments, the outer wall may also at least partially include the tragus 350 and the lower leg 370 of the antihelix. In other words, the cantilever portion 220 is inclined in a direction opposite to the base of the concha 330 of the user's auricle 300.

[0063] The retainer portion 210 includes a first end portion 211 and a second end portion 212 substantially opposite to the first end portion 211. This can be defined in a direction relative to the central axis x. A cantilever portion 220 is connected to the retainer portion 210 between the first end portion 211 and the second end portion 212. As described above, the cantilever portion 220 is configured to engage at least a portion of the outer wall of the concha 330 of the user's auricle 300. In other words, when the cantilever portion 220 is engaged and in a direction relative to the central axis x, the first end portion 211 is more medial (i.e., closer to the user's head, ear canal 390, and / or the bottom of the concha 330) than the second end portion 212 (i.e., farther from the user's head, ear canal 390, and / or the bottom of the concha 330). When engaged, the first end portion 211 may be closer to the user's ear canal 390, the bottom of the concha, the inner ear 380, and / or the head than the second end portion 212. The cantilever portion 220 extends radially outward from the retainer portion 210 toward either the first end 211 or the second end 212. In one embodiment, the connecting edge 224 is arranged closer to the first end 211 than to the second end 212, and the free edge 223 is arranged between the connecting edge 224 and the second end 212 (viewed in the direction of the central axis x).

[0064] As described above, the cantilever portion 220 includes a connecting edge 224 and a free edge 223, the free edge 223 being substantially opposite to the connecting edge 224. In other words, the free edge 223 can be an edge of the cantilever portion 220 that faces away from the cantilever portion 220 and is located on one side of the cantilever portion 220, which is substantially opposite to one side of the cantilever portion 220 on which the connecting edge 224 extends. In an embodiment, particularly in the disengaged state, the free edge 223 can be the edge of the cantilever portion 220 furthest from the connecting edge 224 in the direction of the central axis x (this can apply to some or all circumferential locations of the free edge 223 along its length in the circumferential direction u in the plane rx). In an embodiment, the free edge 223 may substantially face the second end 212 in the direction of the central axis x. Optionally, the free edge 223 may be an edge located on the opposite side of the cantilever portion 220 relative to the connecting edge 224 and not connected to the retaining body 210 (however, this may be the case at the first side edge 225 and the second side edge 226, as described in detail below).

[0065] like Figures 3A to 3GAs shown, the cantilever portion 220 includes a first side edge 225 and a second side edge 226, each extending on opposite sides of the cantilever portion 220 between a connecting edge 224 and a free edge 223. The cantilever portion 220 includes an outer cantilever portion surface 228 substantially opposed to the central axis x in the radial direction r. The outer cantilever portion surface 228 may be defined between the free edge 223 and the connecting edge 224, and additionally between the first side edge 225 and the second side edge 226 (i.e., along its entire length l1, as explained below), on the side opposed to the retainer portion 210. The outer cantilever portion surface 228 is designed to at least partially follow the contour of the outer wall of the concha 330 (e.g., the outer contour or curved shape of the antihelix 320 and / or the antitragus 310), particularly when the cantilever portion 220 is in the engaged state. In addition, the cantilever portion 220 includes an inner cantilever portion surface 227 located on the opposite side of the outer cantilever portion surface 228 and oriented toward the outer circumferential surface 214 of the retainer portion 210.

[0066] See Figure 3D and Figure 3G The cantilever portion 220 is at least partially connected to (or extends from) the outer circumferential surface 214 of the retainer portion 210 in the circumferential direction u. In some examples, the cantilever portion 220 is connected (or extends) substantially over a length l1 in the circumferential direction u around the outer circumferential surface 214 of the retainer portion 210. The length l1 can be measured along the free edge 223 in the circumferential direction u, more specifically between the first side edge 225 and the second side edge 226. In embodiments, the cantilever portion 210 extends beyond approximately 30% to 70% of the entire circumference of the retainer portion 210, more specifically 40% to 60%. Figure 3D As best shown, in the plane r1-r2 defined by the first radial direction r1 and the second radial direction r2, the cantilever portion 220 extends around the outer circumferential surface 214 of the retainer portion 210 at an angle α, which is measured in the circumferential direction u and can be between 120° < α < 270°, more specifically between 150° < α < 250°, and particularly between 170° < α < 240°. Specifically, the angle α is measured at the free edge 223 between the first side edge 225 and the second side edge 226. The free edge 223 is substantially parallel to the connecting edge 224 in the circumferential direction u and extends over most of its length l1. However, in other embodiments, the connecting edge 224 may extend at least partially substantially parallel to the free edge 223. Furthermore, in the plane defined by the first radial direction r1 and the second radial direction r2, the free edge 223 may extend at least partially along its length l1 parallel to the outer circumferential surface 214 of the retainer portion 210.

[0067] See Figures 3A to 3G The connecting edge 224 extends in the circumferential direction u along the first end 211 for most of its length l2. The length l2 is measured in the circumferential direction u along the connecting edge 224 between the first side edge 225 and the second side edge 226. In an embodiment, the connecting edge 224 and / or the free edge 223 may extend linearly in the circumferential direction u for most of the length l1 of the cantilever portion 220. Alternatively, the connecting edge 224 and / or the free edge 223 may have a curved shape in the circumferential direction u for most of the length l1 of the cantilever portion 220, optionally a wave-like shape. In other words, the connecting edge 224 and / or the free edge 223 may have a particular shape in the circumferential direction u. The connecting edge 224 may be connected to the retainer portion 210 adjacent to the first end 211 for most of its length l2. In other words, the connecting edge may follow the contour of the first end 211 in the circumferential direction u and in a direction relative to the central axis x for most of its length l2. In one embodiment, the cantilever portion 220 is coupled to the retainer portion 210 over the entire length l2 of the coupling edge 224. More specifically, the cantilever portion 220 may be coupled to the retainer portion 210 continuously and / or uninterruptedly over the entire length l2 of the coupling edge 224.

[0068] Figure 3E and Figure 3F In such Figure 3D A cross-sectional side view of the first embodiment of the retainer 200, taken at position AA, showing the cantilever portion 220 in the disengaged state (see...). Figure 3E And shows the cantilever section 220 in the engaged state (see...) Figure 3F As mentioned above, the cantilever portion 220 is engaged when at least a portion of it optionally contacts the outer wall (at least a portion of the outer wall) of the concha 330 at the contact area 231. The contact area 231 may be located at the free edge 223 and / or between the free edge 223 and the connecting edge 224 on the surface 228 of the outer cantilever portion. In an embodiment, when engaged, the cantilever portion 220 may contact the outer wall of the concha 330 between the tragus 310 and the lower foot 370 of the helix, optionally at least partially at the antitragus 350 and the antihelix 320.

[0069] The cantilever portion 220 is configured to deflect, more specifically elastically, at least partially along its length l1 in the circumferential direction u, in the radial direction r toward the central axis x, and / or in the direction of the central axis x, in response to a force F applied to the cantilever portion 220. When the retainer 200 is in the engaged state, the force F is at least partially applied to the cantilever portion 220 by a portion of the outer wall of the auricle 330 that optionally contacts the cantilever portion 220 at the contact area 231.

[0070] like Figure 3F As shown, when the cantilever portion 220 is in the engaged state, at least a portion of the cantilever portion 220 in contact with the outer wall of the concha 330 may deflect toward the central axis x, and / or wherein at least a portion of the cantilever portion 220 may deflect toward the first end 211 or toward the second end 212. In other words, when the retainer 200 is at least partially inserted into the concha cavity, at least a portion of the cantilever portion 220 may fold or roll up toward the central axis x. When the cantilever portion 220 deflects or folds or rolls up toward itself, the free edge 223 may move toward the connecting edge 224, more specifically, wherein the distance between the connecting edge 224 and the free edge 223 may be less than the distance in the disengaged state. However, in other embodiments, when deflected, the free edge 223 may move away from the connecting edge 224. When the retainer 200 is inserted toward the base of the user's concha (or toward the user's ear canal 390) in the direction of the central axis x to provide engagement between the retainer 200 and the auricle 300, and optionally between the retainer 200 and the antitragus 310 and / or the antihelix 320, at least a portion of the outer wall of the concha 330 (e.g., the antitragus and / or the antihelix) can contact the cantilever portion 220. Therefore, a contact force F can act at least on the portion of the cantilever portion 220 that contacts the outer wall of the concha 330. The contact force F may be greater when the retainer 200 is inserted than the contact force in the engaged state. This may be because, in the engaged state, a portion of the cantilever portion 220 can engage at least partially with a groove or recess provided by the antihelix 320 and / or the antitragus 310 (between the ridge and the base of the concha), thus at least partially reducing the deflection of the cantilever portion 220.

[0071] The contact force F may have a first force component that is substantially radially r toward the central axis x. Furthermore, the force F may have a second force component that is substantially oriented toward the central axis x, and / or a third force component that is substantially oriented in the circumferential direction u. The cantilever portion 220 may comprise a polymer material (e.g., made of a polymer material). As described above, the cantilever portion 220 may be configured to deflect elastically. After deflection, the cantilever portion 220 may move back to its initial position by a restoring force (optionally an elastic restoring force). The initial position of the cantilever portion 220 may be a position where the cantilever portion 220 is in a disengaged state. In the engaged state, the restoring force may act at least partially in opposition to the contact force F. If the contact force F is greater than the elastic restoring force, deflection of the cantilever portion 220 (specifically, the portion in contact with the outer wall) may occur. In other words, the cantilever portion 220 may provide a spring effect. The restoring force depends on the stiffness of the material used for the cantilever portion 220. Stiffness is caused by the elastic modulus of the material, the specific geometry of the cantilever portion 220, the cross-section of the material, and the treatment of the material. The stiffness of the cantilever portion 220 may vary depending on the direction of deflection. For example, the stiffness of the material deflecting towards the central axis x may be lower than that deflecting in the circumferential direction u. In the engaged state, opposing forces (contact force F and elastic restoring force) allow the retainer 200 to be better held in the concha 330. In other words, opposing forces cause the cantilever portion 220 to exert pressure on the outer wall. The cantilever portion 220 may exert pressure on the outer wall of the concha 330 of the auricle 300 at least partially along the antitragus 310 and / or the antihelix 320. However, it should be noted that the pressure exerted by the retainer 200 on the outer wall of the concha 330 may be reactive to compensate for (or balance) the force F, rather than active to intentionally affect the shape of the outer wall of the concha 330. In an embodiment, the cantilever portion 220 may exert pressure along at least the lower portion (adjacent to the antitragus) of the antitragus 310 and the antihelix 320. Therefore, when the earpiece 10 is worn, the retainer 200 provides stability and can at least slightly push the earpiece 10 toward the user's ear canal 390. If the force is distributed over a larger contact area 231 between the cantilever portion 220 and the outer wall of the concha 330, this can improve comfort (due to reduced pressure) for a longer period of time while the user wears the retainer 200 (and the earpiece 10).

[0072] When the retainer 200 changes from a disengaged state to an engaged state (i.e., when the retainer is inserted into the user's auricle 330 and the cantilever portion 220 contacts the outer wall of the auricle 330), the second force component may be directed towards the second end 212 (e.g., as shown in the image). Figure 3F (as shown), or pointing to the first end 211. The resultant force component of the first force component and the second force component can cause this portion of the cantilever portion 220 to deflect, such as Figure 3FAs shown. In this configuration, at least a portion of the free edge 223 (and the associated portion of the cantilever portion 220) may move (or fold) axially toward the first end 211 or toward the second end 212, and radially toward the central axis x (and / or toward the retainer portion 210). However, in other embodiments, at least a portion of the free edge 223 may move (or fold) radially toward the central axis x (and / or toward the retainer portion 210) without moving toward the first end 211 or toward the second end 212. When the retainer 200 changes from an engaged state to a disengaged state (i.e., when the retainer is removed from the user's earlobe 330), the second force component may be directed substantially in the direction of the central axis x toward the first end 211 or toward the second end 212.

[0073] For example, such as Figures 3A to 3C and Figures 3E to 3F As shown, the cantilever portion 220 includes a convex curved section between the connecting edge 224 and the free edge 223. In some embodiments, the convex curved section may be defined in a cross-sectional plane rx defined by a radial axis r and a central axis x. Viewed from the central axis x in the direction of the radial axis r, the cantilever portion 220 includes the convex curved section. In other words, the convex curved section is defined by its position relative to the central axis x when viewed in the radial direction r. When the cantilever portion 220 at least partially contacts the outer wall of the concha 330 of the user's auricle 300 (optionally, the antitragus 310 and / or the antihelix 320), the convex curved section allows the free edge 223 of the cantilever portion 220 to deflect slightly toward the central axis x and / or toward the retainer portion 210, more specifically folding or rolling up on itself. In this way, the retainer 200 can hold the earpiece 10 for a wide range of ear geometries and sizes. If the user has a larger ear, the shorter length l1 of the cantilever portion 220 may roll up toward the retainer portion 210 when the earpiece 10 engages with the user's ear. If the user has a smaller ear, the longer length l1 of the cantilever portion 220 may roll up toward the retainer portion 210 when the cantilever portion 220 at least partially contacts the tragus 310 and the antihelix 320. However, in both cases, the same retainer 200 provides comfortable stability to hold the earpiece 10 in place and properly oriented, and provides at least slight resistance when the user removes the earpiece 10 by pulling it away from the ear canal 390. However, it should be understood that retainers 220 of different sizes (with different geometries associated with smaller and larger ears) may be provided additionally or alternatively, as will be explained below.

[0074] In an embodiment not shown in the figures, in a plane rx defined by the radial axis r and the central axis x, and starting from the connecting edge 224 toward the free edge 223, the cantilever portion 220 (optionally, the outer cantilever portion surface 228) may include a convex curved section followed by a flat section, specifically, wherein the flat section may extend substantially parallel to the central axis x or be slightly inclined away from the central axis x (i.e., away from the outer circumferential surface 214 of the retainer portion 210 in the radial direction r). The partially flat section may be provided at the contact area 231, wherein the cantilever portion 220 contacts the outer wall of the concha 330 of the user's auricle 300 in the engaged state. In other words, the flat section may be adapted to at least partially follow the contour of the outer wall of the concha 330. The flat section may be provided substantially in the circumferential direction u at least partially along the length l1 of the cantilever portion 220 between the first side edge 225 and the second side edge 226. In one embodiment, the flat section may be positioned in the circumferential direction u between the first side edge 225 and the second side edge 226 over most of the length l1 of the cantilever portion 220 or over the entire length l1. The inclination of the flat section relative to the central axis x (or the outer circumferential surface 214) may vary along the length l1, or may be substantially constant in the circumferential direction u between the first side edge 225 and the second side edge 226 over most of the length l1 of the cantilever portion 220. For different radial positions of the cantilever portion 220, the width of the flat section may be measured parallel to the outer cantilever portion surface 228 between the convex curved section and the free edge 223. In another embodiment, the width of the flat section of the cantilever portion 220 may vary along the length l1, or may be substantially constant in the circumferential direction u between the first side edge 225 and the second side edge 226 over most of the length l1.

[0075] As described above, the cantilever portion 220 includes a convex curved section. However, in other embodiments not shown in the figures, when viewed from the central axis x in the radial direction r, the cantilever portion 220 may include a concave curved section, or a combination of convex and concave curved sections. In one embodiment, in a plane rx defined by the radial axis r and the central axis x, and starting from the connecting edge 224 toward the free edge 223, the cantilever portion 220 may include a concave curved section, followed by a convex curved section and / or a flat section. In still other embodiments, relative to the direction and plane defined above, the cantilever portion 220 may include a concave curved section, followed by a convex curved section, followed by a flat section (or vice versa).

[0076] like Figure 3EAs best shown, in the disengaged state of the cantilever portion 220, the cantilever portion 220 with the convex curved section may have a first curved section radius Rs1 measured in a plane rx defined by the radial direction r and the central axis x between the connecting edge 224 and the free edge 223. It should be noted that the first curved section radius Rs1 may vary within the range for different radial sections of the cantilever portion 220 along its length l1 in the circumferential direction u between the first side edge 225 and the second side edge 226. In other embodiments, the first curved section radius Rs1 may be substantially constant for different radial sections of the cantilever portion 220 along its length l1 in the circumferential direction u between the first side edge 225 and the second side edge 226. The first curved section radius Rs1 may vary for different radial sections of the cantilever portion 220 in the rx plane between the connecting edge 224 and the free edge 223. In one embodiment, the first curved section radius Rs1 may be larger near the connecting edge 224 than near the free edge 223.

[0077] like Figure 3F As shown, in the engaged state, the convex bending section may have a second bending section radius Rs2, which is smaller than the first bending section radius Rs1. The second bending section radius may exist in the portion of the cantilever portion 220 that is deflected in the engaged state. The second bending section radius Rs2 may vary for different radial sections of the cantilever portion 220 optionally along its length l1 in the circumferential direction u between the first side edge 225 and the second side edge 226. In one embodiment, the second bending section radius Rs2 may be constant along the circumferential direction u along the length l1 of the cantilever portion 220. However, this only occurs if a constant force (or pressure) is applied to the cantilever portion 220 along its length l1. However, this may not be the case in the standard engaged state, as the cantilever portion 220 may only at least partially follow the contour of the outer wall of the auricle 330. The radius variation between Rs1 and Rs2 may depend particularly on the force applied to the cantilever portion 220 and the stiffness of the material of the cantilever portion 220.

[0078] like Figure 3BAs best shown, the retainer portion 210 includes a tubular wall portion 213 extending between a first end 211 and a second end 212. The tubular wall portion 213 defines an outer wall portion radius Ro and an inner wall portion radius Ri, respectively, measured in the radial direction r from a central axis x. In some examples, the outer wall portion radius Ro may be defined between the central axis x and the outer circumferential surface 214 of the retainer portion 210. The inner wall portion radius Ri may be defined between the inner circumferential surface of the retainer portion 210 and the central axis x. In embodiments, the outer wall portion radius Ro may be between 6.0 mm and 12.0 mm, more specifically between 8.0 mm and 10.0 mm, particularly between 8.0 mm and 9.5 mm. The inner wall portion radius Ri may be between 5.0 mm and 11.0 mm, more specifically between 7.0 mm and 9.0 mm, particularly between 7.3 mm and 8.9 mm. The retainer portion 210 (more specifically, the tubular wall portion 213) may include an oval, circular, or elliptical cross-section in a plane r1-r2 defined by a first radial direction r1 and a second radial direction r2. In other embodiments, the retainer portion 210 may have a cylindrical shape, such that the tubular wall portion 213 may define a substantially circular cross-section. In other embodiments, the tubular wall portion 213 may include a gap formed in the tubular wall portion 213, and this gap may extend through the tubular wall portion 213 between a first end 211 and a second end 212, optionally parallel to the central axis x. However, in this case, the gap may be located at a circumferential position of the retainer portion 210 that is not connected to the cantilever portion 220. In this case, the retainer portion 210 can be clamped onto the housing 100.

[0079] exist Figures 2A to 6BIn the first and second embodiments of the holder 200 shown, the cantilever portion 220 defines a slot shape. The cantilever portion 220 (specifically, the slot shape) may also be defined as a "spoon" or "wing" that functions as a spring element to provide stability when the earpiece 10 is worn by the user and to hold the earpiece 10 in the user's ear and / or push it slightly into the user's ear canal 390. The slot shape is formed by the cantilever portion 220 and the holder portion 210, more specifically by the outer circumferential surfaces 214 of the cantilever portion 220 and the holder portion 210. In other words, the slot shape may be defined by two substantially opposing sidewalls (one of the cantilever portion 220 and the other of the outer circumferential surface 214) connected to each other by their bottoms. When the cantilever portion 220 is engaged, the bottom of the slot shape is more inward than the opening of the slot shape. The groove shape may be defined by an opening (or recess) oriented substantially toward the second end 212 and at least partially surrounded by portions of the cantilever portion 220 extending in the circumferential direction u above the outer circumferential surface 214 of the cantilever portion 220 and the retainer portion 210. For each radial position along the length l1 of the cantilever portion 220 in the circumferential direction u, the bottom of the groove shape may be closer to the first end 211 than to the second end 212. The bottom of the groove shape may extend adjacent to (or at) the connecting edge 224. A free edge 223 may be substantially opposite to the bottom of the groove shape, optionally disposed between the bottom of the groove shape and the second end 212. In embodiments, the bottom may be formed solely by the cantilever portion 220 adjacent to the connecting edge 224 (e.g., where the bottom extends directly from the retainer portion 210 at the connecting edge 224), or solely by the retainer portion 210. In other embodiments, the bottom may be formed by the cantilever portion 220 and the retainer portion 210. However, in yet other embodiments, the groove shape may be formed solely by the cantilever portion 220 (particularly by a cantilever portion 220 including a convex curved section between the connecting edge 220 and the free edge 223) and connected to the retainer portion 210, for example, at the connecting edge 224 or via a web (or strut). In this case, the bottom may be formed at the location between the connecting edge 224 and the free edge 223 at the convex curved section.

[0080] exist Figures 2A to 3GIn a first embodiment of the retainer 200 shown, the cantilever portion 220 is connected to the retainer portion 210 at the connecting edge 224, the first side edge 225, and the second side edge 226. In this case, the groove shape closes at (or between) the first side edge 225 and the retainer portion 210, and between the second side edge 226 and the retainer portion 210. Thus, the opening of the groove shape can be oriented substantially toward the second end 212 and can be completely surrounded by the cantilever portion 220 and the portion of the outer circumferential surface 214 that extends above it. In other words, the cantilever portion 220, together with the outer circumferential surface 214 of the retainer portion 210, defines a closed "spoon" or "blade" structure. For example, as... Figure 3B As shown, the connecting edge 224 may be curved toward the free edge 223 in the circumferential direction u and the central axis x at the first side edge 225 and the second side edge 226, respectively. In this configuration, the first side edge 225 and the second side edge 226 may be defined as integrally formed with the connecting edge 224, or may be defined as linear between the connecting edge 224 and the free edge 225. In other words, in this case, the first side edge 225 may define a first end of the free edge 223, and the second side edge 226 may define a second end of the free edge 223. Figures 2A to 3G In the embodiment shown, the free edge 223 is connected to the retainer portion 210 only at the first side edge 225 (or the first end) and the second side edge 226 (or the second end).

[0081] Figures 4A to 4C , Figure 6A and Figure 6B A second embodiment of the retainer 200 is shown. It should be noted that the features described throughout this disclosure for the first embodiment of the retainer 200, with necessary modifications, are also applicable to the second embodiment of the retainer 200. The cantilever portion 220 of the retainer 200 according to the second embodiment also includes the convex curved section as defined above. The retainer 200 according to the second embodiment also has a groove shape. However, in the second embodiment of the retainer 200, the cantilever portion 220 is connected to the retainer portion 210 at the connecting edge 224. However, the first side edge 225 and the second side edge 226 are completely (or at least partially) away from the retainer portion 210. Figures 4A to 4C , Figure 6A and Figure 6B In the illustrated embodiment, the first side edge 210 and the second side edge 226 are completely away from the retainer portion 210. In other words, the cantilever portion 220 is not connected to the retainer portion 210 at its first side edge 225 and second side edge 226. In this case, the first side edge 225 and the second side edge 226 may not be linear, but rather define surface areas (e.g., Figure 6A(Best shown), the surface region can be oriented substantially in the circumferential direction u. However, it is also possible that the connecting edge 224 bends toward the free edge 223 (or vice versa), wherein the first side edge 225 and the second side edge 226 can be integral with the connecting edge 224 and / or the free edge 223. Thus, the slot-shaped opening can be substantially toward the second end 212 and oriented in the circumferential direction u. The opening can be surrounded only by the cantilever portion 220, which is opposite to the portion of the cantilever portion 220 extending above it in the outer circumferential surface 214. However, the cantilever portion 220 can be open in the circumferential direction u at the first side edge 225 and the second side edge 226. In other words, the cantilever portion 220 can define an open “spoon” or “blade” structure together with the outer circumferential surface 214 of the retainer portion 210.

[0082] In other embodiments (not shown), the cantilever portion 220 is coupled to the retainer portion 210 at the coupling edge 224, at the first side edge 225, or at the second side edge 226. The corresponding other first side edge 225 or second side edge 226 may be at least partially away from the retainer portion 210. In this case, the groove shape is only partially closed at (or between) the first side edge 225 or the second side edge 226. The groove shape may be closed at the first side edge 225 and open at the second side edge 226, or vice versa. This can be a combination of the first and second embodiments of the retainer 200.

[0083] See back Figures 3D to 3GThe cantilever portion 220 includes an outer contour 240 in a plane r1-r2 defined by a first radial direction r1 and a second radial direction r2, wherein the outer contour radius Rcon, measured between the outer contour 240 of the cantilever portion 220 and the central axis x, may be between 8.0 mm and 14.0 mm, more specifically between 9.5 mm and 13.5 mm. In some examples, the outer contour 240 may extend circumferentially around the cantilever portion 220 between a first side edge 225 and a second side edge 226. The first radial axis r1 may extend in a direction from the central axis x, wherein the cantilever portion 220 has a maximum contour radius Rmax, measured between the outer contour 240 of the cantilever portion 220 and the central axis x. In other words, the maximum contour radius Rmax may be at the “upper” location, optionally at a second cantilever sub-portion 222 (which will be described in detail below) adjacent to the second side edge 226 of the cantilever portion 220. The ratio between the outer wall radius Ro and the outer contour radius Rcon of the retainer portion 210 can be between 0.6 and 1.0, more specifically between 0.7 and 1.0. When the cantilever portion 220 is attached to the retainer portion 210 at its connecting edge 224, first side edge 225, and / or second side edge 226, the value 1.0 may only occur at the first side edge 225 and / or second side edge 226 of the cantilever portion 220. In other words, when the cantilever portion 220 is attached to the retainer portion 210 at its connecting edge 224, first side edge 225, and / or second side edge 226, the outer contour radius Rcon may be substantially equal to the outer wall radius Ro at the first side edge 225 and / or second side edge 226 of the cantilever portion 220.

[0084] In such Figure 3EIn the disengaged state shown, measured in the radial direction r between the outer contour 240 and the outer circumferential surface 214 of the retainer portion 210, the cantilever portion 220 extends beyond the outer circumferential surface 214 of the retainer portion 210 to a first differential radius ΔR1, wherein the first differential radius ΔR1 may be between 0.0 mm and 6.0 mm. When these edges 225, 226 are engaged with the retainer portion 210, the first differential radius ΔR1 may be 0 mm at the first side edge 225 and / or at the second side 226. Optionally, the first differential radius ΔR1 may be defined by an average value between 0.5 mm and 5.5 mm, more specifically between 1.0 mm and 5.0 mm, and particularly between 1.3 mm and 4.9 mm. The first differential radius ΔR1 may vary for different radial positions (in planes r1-r2) of the cantilever portion 220 in the circumferential direction u between the first side edge 225 and the second side edge 226 and along the length l1. In one embodiment, the first differential radius ΔR1 may be larger near the second side edge 226 (upper part of the cantilever portion 220) than near the first side edge 225 (lower part of the cantilever portion 220). Along the outer contour of the cantilever portion 220 in the circumferential direction u from the first side edge 225 toward the second side edge 226, the first differential radius ΔR1 may increase (optionally gradually) to a maximum differential radius, and then may decrease as it moves further toward the second side edge 226. In the engaged state, as... Figure 3F As shown, measured in the radial direction r between the outer contour 240 and the outer circumferential surface 214 of the retainer portion 210, the cantilever portion 220 extends beyond the outer circumference of the retainer portion 210 to a second differential radius ΔR2, wherein the second differential radius ΔR2 is equal to or less than the first differential radius ΔR1. For the corresponding portion of the deflected cantilever portion 220 (i.e., on which force F is applied), the second differential radius ΔR2 may be less than the first differential radius ΔR1. For those portions of the undeflected cantilever portion 220, the second differential radius ΔR2 may be substantially equal to the first differential radius ΔR1. The ratio of the second differential radius ΔR2 to the first differential radius ΔR1 may be between 0.7 and 1.0.

[0085] The retainer 200 may comprise a first polymer material (e.g., made of a first polymer material). The first polymer material may have a Shore A hardness between 20 and 80, more specifically between 30 and 70, and particularly between 40 and 60. In one example, the first polymer material may have a Shore A hardness between 45 and 55. The retainer portion 210 and / or the cantilever portion 220 may comprise (or be made of) the first polymer material. The first polymer material as defined above may improve the comfort of the retainer 200 and / or the earpiece 10 when engaged with the user's concha 330 (e.g., the outer wall of the concha 300) for extended periods. Additionally, the first polymer material may also provide sufficient stability for the retainer 200. The first polymer material may be a thermoplastic, thermosetting, and / or elastic polymer. In some examples, the first polymer material may be a thermoplastic elastomer (TPE) or a fluoropolymer. In one embodiment, the first polymer material may be silicone. In other embodiments, the first polymer material may be rubber. Specifically, the first polymer material may be derived from the group consisting of silicone, polyurethane, or polynorbornene. The first polymer material may be a biocompatible material. Therefore, the characteristic "biocompatibility" can be defined as the ability to come into contact with a living system without producing side effects. In some examples, the retainer portion 210 may contain a higher-hardness (polymer) material, and the cantilever portion 220 may contain a lower-hardness (polymer) material. These materials may have properties as defined for the first polymer material. Therefore, the retainer portion 210 with a higher-hardness material may increase the stability and / or stiffness of the retainer 220 when it is attached to the earpiece 10, and the cantilever portion 210 with a lower-hardness material may improve comfort when the retainer 200 engages with the user's concha 330 for extended periods. In embodiments, the cantilever portion 220 and the retainer portion 210 may be integrally formed.

[0086] See, for example Figure 3C , Figure 6A and Figure 6B The cantilever portion 220 includes a first cantilever sub-portion 221 and a second cantilever sub-portion 222, wherein the first cantilever sub-portion 221 is configured to engage at least partially with the antitragus 310, and wherein the second cantilever sub-portion 222 is configured to engage at least partially with the antihelix 320 of the user's auricle 300. In other words, when the retainer 200 is in the engaged state, the first cantilever sub-portion 221 at least partially contacts the antitragus 310, and the second cantilever sub-portion at least partially contacts the antihelix 320 of the user's auricle 300. In an embodiment, the first cantilever sub-portion 221 and the second cantilever sub-portion 222 may be integrally formed.

[0087] Figure 5B and Figure 5CA side perspective view and a top perspective view are shown of the retainer 200 that engages with the user's ear canal 330. (See attached image.) Figure 5B As shown, due to typical ear geometry, the antitragus 310 and antihelix 320 may extend in different planes. For engagement with the user's auricle 300, optionally with the antitragus 310 and / or antihelix 320, the first cantilever sub-portion 221 and the second cantilever sub-portion 222 may also extend primarily in different planes. In other words, when the cantilever portion 220 is engaged, the first cantilever sub-portion 221 may be more medial than the second cantilever sub-portion 222 in the direction of the central axis x (i.e., the first cantilever sub-portion 221 is closer to the ear canal 390 and / or the user's head and / or the base of the concha than the second cantilever sub-portion 222). In embodiments, the first cantilever sub-portion 221 may engage at least partially with a groove or channel provided by the antitragus 310 (between the ridge of the antitragus and the base of the concha), and the second cantilever sub-portion 222 may engage at least partially with a groove or channel provided by the antihelix 320 (between the ridge of the antihelix and the base of the concha).

[0088] like Figure 3C As shown, the connecting edge 224 includes a first connecting edge 224a associated with the first cantilever sub-part 221. The first connecting edge 224a extends in the direction of the central axis x to a first plane p1, and / or extends primarily on the first plane p1 in the circumferential direction u. The first plane p1 may extend parallel to a plane r1-r2 defined by a first radial direction r1 and a second radial direction r2. The connecting edge 224 includes a second connecting edge 224b associated with the second cantilever sub-part 222. The second connecting edge 224b extends in the direction of the central axis x to a second plane p2, and / or extends primarily on the second plane p2 in the circumferential direction u. The second plane p2 may extend parallel to a plane r1-r2 defined by a first radial direction r1 and a second radial direction r2. The first plane p1 and the second plane p2 extend parallel to each other, and the first plane p1 and the second plane p2 are separated from each other by a first distance d1, wherein the first distance d1 is measured parallel to the central axis x. The first plane p1 can be arranged closer to the first end 211 than the second end 212 in the direction of the central axis x, and the second plane p2 can be arranged between the first plane p1 and the second end 212.

[0089] Free edge 223 includes a first free edge 223a associated with the first cantilever sub-part 221. The first free edge 223a extends in the direction of the central axis x to a third plane p3, and / or extends primarily on the third plane p3 in the circumferential direction u. The third plane p3 may extend parallel to the plane r1-r2 defined by a first radial direction r1 and a second radial direction r2. Furthermore, free edge 223 includes a second free edge 223b associated with the second cantilever sub-part 222. The second free edge 223b extends in the direction of the central axis x to a fourth plane p4, and / or extends primarily on the fourth plane p4 in the circumferential direction u. The fourth plane p4 may extend parallel to the plane r1-r2 defined by the first radial direction r1 and the second radial direction r2. In an embodiment, the third plane p3 and the fourth plane p4 may be parallel to each other. The third plane p3 and the fourth plane p4 are separated from each other by a second distance d2, wherein the second distance d2 is measured parallel to the central axis x. The third plane p3 may be arranged closer to the first end 211 than the second end in the direction of the central axis x, and the fourth plane p4 may be arranged between the third plane p3 and the second end 212. In one embodiment, the first connecting edge 224a and / or the second connecting edge 224b may extend substantially parallel to the first free edge 223a and / or the second free edge 223b, respectively.

[0090] exist Figure 5B In the top view, when the earpiece is inserted into (or engages with) the user's auricle 300, a small portion of the first cantilever sub-section 221 near the first free edge 223a and a small portion of the second cantilever sub-section 222 near the second free edge 223b are visible. The antitragus 310 and / or antihelix 320 of the auricle 300 obstruct the view of the remaining portions of the first cantilever sub-section 221 and the second cantilever sub-section 222. However, they are shown in dashed lines to show a top view of the retainer 200 engaging with the user's auricle 300 in a deeper section (viewed relative to the bottom of the user's concha or ear canal 390 in the direction of the central axis x). At least a portion of the first cantilever sub-section 221 near the first connecting edge 224a contacts the user's antitragus 310, thereby causing the first cantilever sub-section 221 to deflect at least partially toward the retainer portion 210 and / or the central axis x. At least a portion of the second cantilever sub-section 222 near the second connecting edge 224b contacts the user's antihelix 320, thereby causing the second cantilever sub-section 222 to deflect at least partially toward the retainer section 210 and / or the central axis x.

[0091] like Figure 3FAs shown, in one embodiment, the cantilever portion 220 may have a width w, which is measured parallel to the central axis x between the connecting edge 224 and the free edge 223. The width w may be constant over most of the length l1 of the cantilever portion 220. In other embodiments, the width w may vary along the length l1 of the cantilever portion 220. Figure 3C As shown, measured parallel to the central axis x, the first cantilever sub-part 221 has a first width w1 and the second cantilever sub-part 222 has a second width w2. In embodiments, the first width w1 may be greater than the second width w2. In some examples, the first width w1 is measured between the first plane p1 and the third plane p3, and / or between the first connecting edge 224a and the first free edge 223a. The second width w2 is measured between the second plane p2 and the fourth plane p4, and / or between the second connecting edge 224a and the second free edge 223a. In embodiments, the first width w1 may be between 2.0 mm and 4.3 mm, more specifically between 2.1 mm and 4.2 mm, and the second width w2 may be between 0.9 mm and 3.3 mm, more specifically between 1.0 mm and 3.2 mm.

[0092] The cantilever portion 220 includes a transition region 230 extending in the circumferential direction u between a first cantilever sub-portion 221 and a second cantilever sub-portion 222, wherein the transition region 230 may have a curved shape in the circumferential direction u, optionally being wave-like. The transition region 230 may be defined as the portion between the first cantilever sub-portion 221 and the second cantilever sub-portion 222, wherein the cantilever portion 220 changes its shape from a first width w1 to a second width w2. Figure 3C In the illustrated embodiment, the first connecting edge 224a and the second connecting edge 224b together form a waveform in the transition region 230. In other words, the waveform can be defined by concave and convex shapes. For example, viewed from the second end 212 toward the first end 211, in the transition region 230, the first connecting edge 224a can have a convex shape and the second connecting edge 224b can have a concave shape. Furthermore, the first free edge 223a and the second free edge 223b together form a waveform in the transition region 230. For example, viewed from the second end 212 toward the first end 211, the first free edge 223a can have a convex shape and the second free edge 223b can have a concave shape.

[0093] like Figure 6A and Figure 6BAs shown, the cantilever portion 220 may include, at least partially along its length l1 in the circumferential direction u, a groove 229 extending in the radial direction r from the free edge 223 at least partially toward the connecting edge 224. The groove may reduce the stiffness of the material of the cantilever portion 220, thereby improving comfort and / or flexibility when the retainer 220 engages with the user's auricle 300. In embodiments, the first cantilever sub-portion 221 and / or the second cantilever sub-portion 222 and / or the transition region 230 may include the groove 229. In embodiments, the distance between the grooves 229 along the length l1 and in the circumferential direction u of the cantilever portion 220 may be varied. In other embodiments, the distance between the grooves 229 may be constant. Furthermore, the groove 229 may have a width measured in the circumferential direction u, which may be constant or may vary along the length l1 of the cantilever portion 220. In regions of the outer wall of the auricle 300, the number or width of the grooves 229 may be increased and / or the spacing between adjacent grooves 229 may be reduced, where there are rapid changes in ear geometry (e.g., curvature) or greater variations between individuals (e.g., the curvature of the antihelix 320 and / or antitragus 310 may vary between individuals). The grooves 229 may provide increased flexibility for individual retainers 200 to conform to the outer wall of the concha 330 of the auricle 300 and fit on most auricles 300 with different geometries.

[0094] like Figure 3D and Figure 3E As best shown, the cantilever portion 220 has a thickness t measured in a cross-section between the inner cantilever portion surface 227 and the outer cantilever portion surface 228. In embodiments, the thickness t may be between 0.4 mm and 0.8 mm, more specifically between 0.45 mm and 0.75 mm. The thickness t is substantially constant along the entire length l1 of the cantilever portion 220, and / or the thickness t is substantially constant between the free edge 223 and the connecting edge 224. However, in other embodiments, the thickness t may vary along the length l1 of the cantilever portion 220 and / or between the free edge 223 and the connecting edge 224. For example, a first cantilever sub-portion 221 may have a first thickness and a second cantilever sub-portion 222 may have a second thickness. The first thickness may be greater than or less than the second thickness. The first thickness may change to the second thickness in the transition region 230. The thickness can be measured at any location between the free edge 223 and the connecting edge 223 and / or between the first side edge 225 and the second side edge 226, in the cross-section of the cantilever portion 220 between the inner cantilever portion surface 227 and the outer cantilever portion surface 228. In an embodiment, the thickness t can increase as the movement proceeds from the free edge 223 toward the connecting edge 224. Figure 3EIn the example shown, the cantilever portion 220 may have a maximum thickness tmax near the connecting edge 224 and / or along the length l2 of the connecting edge 224, and a minimum thickness tmin near the free edge 223 and / or along the length l1 of the free edge 223.

[0095] According to a second aspect of this disclosure, a component kit (not shown) includes a retainer support comprising a plurality of retainers 200 according to the embodiments described above. Each of the plurality of retainers 200 may include a retainer portion 210 having the same geometry. Additionally or alternatively, at least some of the plurality of retainers 200 include cantilever portions 220 with different geometries to accommodate different sizes of a user's auricle 300. Since the size of a user's auricle 300 varies from person to person, particularly children and adults, it is desirable to provide three different sizes of cantilever portions 220, optionally small, medium, and large (in addition, the deflection capability of the cantilever portions 220 can increase the bandwidth of engagement with different sizes of auricle 300). In other words, each of the plurality of retainers 200 may include a retainer portion 210 having a plurality of standard geometric parameters defining the geometry of the retainer portion 210. The standard geometric parameters may be, for example, but not limited to, an inner wall portion radius Ri and an outer wall portion radius Ro. At least one of the plurality of retainers 200 may include a cantilever portion 220 that is larger or smaller than the cantilever portions 220 of the corresponding other retainers 200. In some examples, the geometric parameters (e.g., but not limited to, Rcon, thickness t, w1, or w2) defining the geometry of the cantilever portion 220 of at least one retainer 200 may be larger or smaller than the geometric parameters of the corresponding other retainers 200.

[0096] According to a third aspect of this disclosure, the earpiece 10 of an in-ear audio device includes a housing 100 and a retainer 200 as described above. Figures 2A to 2D Different views of a first embodiment of the in-ear earphone 10 are shown, and Figures 4A to 4C A different view of a second embodiment of the in-ear earpiece 10 is shown. The retainer 200 may optionally be releasably coupled to the housing 100 by means of a retainer portion 210. This provides the advantage that the retainers 200 are interchangeable, and retainers 200 of different sizes (e.g., cantilever portions 220 with different geometries) can be coupled to the housing 100. However, in other embodiments, the retainer 200 may be permanently coupled to the housing 100. In some examples, the retainer 200 is coupled to the outer circumference of the housing 100. When coupled, the retainer 200 may extend at least partially around the outer circumference of the housing 100. Figures 2A to 2D and Figures 4A to 4CIn the illustrated embodiment, the retainer portion 210 is formed as a sleeve that mates around the outer circumference of the housing 100 (particularly the intermediate housing portion as defined below). The retainer portion 210 (optionally a tubular wall portion 213) includes an inner wall surface that can at least partially conform to the outer circumferential surface of the housing 100. In one embodiment, the retainer portion 210 may include a gap formed in the tubular wall portion 213, and the gap extends substantially parallel to the central axis x between a first end 211 and a second end 212. Thus, the retainer portion 210 may be adapted as a clamp and configured to clamp onto the housing 100 (or otherwise removably or permanently coupled to the housing 100). In other words, the tubular wall portion 213 may extend partially over the entire circumference of the housing 100. However, in other embodiments, the retainer portion 210 may be integrally formed with the housing 100, and the cantilever portion 220 may be coupled to the retainer portion 210 via a coupling edge 224. In one embodiment, the cantilever portion 220 may be directly coupled to the housing 100 – in this case, the retainer 200 may not include the retainer portion 210.

[0097] like Figure 2A and Figure 2B As best shown, the housing 100 includes a front side 101 and a rear side 102 substantially opposite the front side 101. When the housing 100 engages with at least a portion of a user's ear, the front side 101 is more medial than the rear side 102. In other words, when engaged, the front side 101 may be closer to the user's ear canal 390 and / or head and / or the base of the concha than the rear side 102 (i.e., the rear side 102 may be further away from the user's ear canal 390 compared to the front side 101). The connecting edge 224 and / or the first end 211 of the retainer 200 are arranged closer to the front side 101 than to the rear side 102 in the direction of the central axis x, and the free edge 223 and / or the second end 212 of the retainer 200 are located between the connecting edge 224 and / or the first end 211 and the rear side 102. In other words, when the earpiece 10 is engaged with the user's ear, the front side 101 is further inward than the first side 211, and the second side 212 is further inward than the rear side 102. The bottom of the groove shape is closer to the front side 101 than the rear side 102, and the opening of the groove shape is located between the bottom of the groove shape and the rear side 102. In embodiments, the housing 100 may be made of a rigid polymer material, optionally derived from the group consisting of acrylonitrile butadiene styrene (ABS), polycarbonate / acrylonitrile butadiene styrene (PCB / ABS), polyetherimide (PEI), or stereolithography (SLA) resins. The rigid polymer material may be a biocompatible material. In some examples, the rigid polymer material may be a thermoplastic, thermosetting, or elastomer.

[0098] In one embodiment, the earpiece 10 has an earpiece length measured parallel to the central axis x between the front side 101 and the rear side 102. The second end 212 may be located in the range of 30% to 70% of the earpiece length as viewed from the front side 101 toward the rear side 102, more specifically in the range of 40% to 60% (i.e., approximately half the earpiece length).

[0099] The outer casing 100 includes a front outer casing portion at a front side 101, a rear outer casing portion at a rear side 102, and an intermediate outer casing portion connecting the front and rear outer casing portions. The outer casing portions may be integrally formed. Each outer casing portion may have a substantially oval cross-section. Figures 2A to 2D In the first embodiment shown, the diameter of the rear outer shell portion, measured along the first radial direction r1, can be larger than the diameter of the intermediate outer shell portion, and the diameter of the intermediate outer shell portion can be larger than the diameter of the front outer shell portion. In other words, the cross-section of the rear outer shell portion, measured in the plane r1-r2 defined by the first radial axis r1 and the second radial axis r2, can be larger than the cross-section of the intermediate outer shell portion, and the cross-section of the intermediate outer shell portion can be larger than the cross-section of the front outer shell portion. However, in Figures 4A to 4C In the second embodiment shown, the cross-section of the rear housing portion and / or the front housing portion may be substantially equal to or smaller than the cross-section of the intermediate housing portion. For example... Figure 2A The rear outer shell portion shown has an oval cross-section in the radial plane r1-r2, which has a maximum diameter extending substantially in the first radial direction r1. Figures 2A to 2D As shown, when coupled, the orientation of the retainer 200 relative to the housing 100 allows the maximum profile radius Rmax to be located above the housing 100 relative to a first radial direction r1. In an embodiment, the radius Rmax may extend in the radial direction r, which is substantially parallel to the direction of the maximum diameter of the rear housing portion.

[0100] The retainer 200 can be coupled to an intermediate housing portion. In an embodiment, the intermediate housing portion may include a locking feature configured to engage a mating locking feature disposed on the retainer 200. For example, the retainer 200 may include a recess disposed on a tubular wall portion 213, and the intermediate housing portion may include a protrusion configured to engage the recess, or vice versa. Additionally or alternatively, the intermediate housing portion may include a groove extending around at least a portion of the outer circumference of the intermediate housing portion. When coupled, the retainer 200 may be at least partially inserted into the groove. The locking feature prevents or at least reduces undesired movement relative to the housing 100 in the direction of center x and / or in the circumferential direction u. Furthermore, the locking feature ensures a specific orientation of the cantilever portion 220 of the retainer 200 relative to the housing 100 and / or the mouthpiece 110, as described below. In other embodiments, the locking feature may also be configured such that, when engaged, the retainer 200 securely surrounds the outer circumference of the housing 100 and thus prevents or at least reduces undesired movement relative to the housing 100 in the direction of center x and / or in the circumferential direction u due to the increased friction between the inner wall surface of the tubular wall portion 213 and the outer circumferential surface of the housing 100.

[0101] See Figures 2A to 2D and Figures 4A to 5A The housing 100 includes a sound outlet 110 that extends obliquely from the front side 102 of the housing 100 in a direction defined by the central axis x and the radial direction r. Therefore, when the earpiece 10 is engaged with the user's ear, the sound outlet 110 can extend toward the user's ear canal 390. In other words, the sound outlet 110 can extend from the housing 100 in an oblique direction, which is a combination of the direction of the central axis x and the radial direction r.

[0102] The housing 100 may include a cavity in which an electroacoustic transducer, a battery, and / or electronic circuitry may be disposed. The transducer may be arranged in the housing 100 such that, when the earpiece 10 is engaged, a majority of the transducer is located within or surrounded by the outer wall of the concha 330 of the user's auricle 300. An electroacoustic transducer may be defined as a device adapted to convert electricity (e.g., current, voltage changes) into sound energy (e.g., sound vibrations, air pressure oscillations) or vice versa. In embodiments, the electroacoustic transducer may be a speaker (or sound-emitting component), a receiver, or a driver. Electronic circuitry may include a wireless transmitter (e.g., for wirelessly receiving and / or transmitting audio and / or control signals). The housing 100 may include one or more control elements (e.g., buttons or capacitive buttons) to control the function of the earpiece 10 and / or in-ear audio device (e.g., turning the device on or off, changing the audio volume). The housing 100 may include one or more sensors (e.g., a microphone or a sensor for sensing bodily functions). The housing 100 may include one or more indicator elements (e.g., light-emitting elements).

[0103] The cavity is acoustically coupled to an acoustic channel in the mouthpiece 110, such that when the earpiece 10 is worn, the electroacoustic transducer is acoustically coupled to the user's ear. The housing 100 may also support one or more microphones. In some examples, when the earpiece 10 is worn, the mouthpiece 110 may be configured to direct acoustic energy from the housing 100 (optionally from the electroacoustic transducer) toward the user's ear canal 390. The length of the mouthpiece 110 may be varied to adapt to the anatomy of the user's ear. In other embodiments, the angle of the mouthpiece 110, which extends obliquely from the housing 100, may be varied relative to the housing 100.

[0104] like Figures 2A to 2D as well as Figures 4A to 4C As best shown, the sound outlet 110 includes a flat distal end 111 and an acoustic channel configured to conduct acoustic energy (i.e., sound waves). In one embodiment, the distal end 111 may include a generally elliptical opening for the acoustic channel. In other embodiments, the distal end 111 may have an oval or racetrack shape. See also Figure 1B , Figure 2D , Figure 4A , Figure 4C and Figure 5A When the earpiece 10 is engaged with the user's ear, the plane y1-y2 defined at the distal end 111, particularly at the substantially elliptical opening, can be substantially parallel to the major axis of the user's ear canal 390 (see...). Figure 1B The long axis may extend through (or parallel to) the plane defined by the cross-section of the user's ear canal 390, particularly near the entrance of the ear canal 390. Thus, the long axis may be perpendicular to the outer wall and / or centerline 391a, 391b of the ear canal 390.

[0105] like Figures 2A to 2D as well as Figures 4A to 4C As shown, the earpiece 10 also includes an earplug 120 configured to engage with the ear canal 390 of a user's ear. In some examples, the earplug 120 may be adapted to form an acoustic seal with the user's ear canal 390. Figure 5A This is a side perspective view of the earpiece 10 positioned in the user's ear. In an embodiment, the earplug 120 may be releasably coupled to the distal end 111 of the mouthpiece 110. The earplug 120 may be substantially dome-shaped. The earplug 120 includes a narrow end 121, a wider end 122, and a substantially dome-shaped outer wall portion 123 extending between the narrow end 121 and the wider end 122. In other words, the outer wall portion 123 may have an elongated oval cross-sectional shape, such as an elliptical, ovate, or elongated oval shape with rounded ends and curved splines connecting them. The outer wall portion 123 may be part of the earplug 120 that, when the earpiece 10 is engaged with the user's ear, contacts and conforms to the user's ear canal 390, thereby forming an acoustic seal therebetween. The outer wall portion 123 may be designed to apply reduced pressure to the wearer's ear canal 390 and to reduce the force vector that pushes the earpiece 10 out of the wearer's ear canal 390. In other words, the outer wall portion 123 is not directly connected between the narrow end 121 and the wider end 122, but rather with a slightly curved (i.e., dome-shaped) connection as described above. Furthermore, the oval opening of the earpiece located on the narrow end 121 can be aligned with typical ear geometry and allows the earpiece 10 to comfortably adapt to varying ear canal 390 dimensions.

[0106] The diameter of the wider end 122 may be larger than the diameter of the ear canal 390, and / or the diameter of the narrow end 121 may be smaller than the diameter of the entrance to the ear canal 390 (when the earpiece 10 is in the disengaged state). However, the outer wall portion 123 may be configured to deflect at least partially in the radial direction toward the mouthpiece 100 when at least partially inserted into the user's ear canal 390. In an embodiment, this may be the case when the earpiece 120 is engaged with the user's ear canal 390. The earpiece 120 may include an inner wall portion extending at least partially from the narrow end 121 toward the wider end 122. The inner wall portion may define and surround an extension of the acoustic channel. The outer wall portion 123 is connected to the inner wall portion at the narrow end 121, optionally wherein the wider end 122 may be spaced apart from the inner wall portion (i.e., not connected to the inner wall portion). The inner wall portion may have a tubular shape configured to connect the earpiece 120 to the mouthpiece 110. Therefore, the inner wall portion may include a circular, elliptical, or oval cross-section. In an embodiment, the inner wall portion may include a retaining member configured to engage a mating retaining member on the mouthpiece 110. In one embodiment, the retaining member may be a protrusion extending around the inner surface of the inner wall portion. The mating retaining member may be a recess or groove defined by and extending around the outer circumferential surface of the mouthpiece 110. Engagement of the retaining member can help retain the earplug 120 on the mouthpiece 110 and can provide an improved acoustic seal therebetween.

[0107] Earplug 120 may comprise a second polymer material (e.g., made of a second polymer material). The second polymer material may have a Shore A hardness between 10 and 80, more specifically between 15 and 75, and particularly between 20 and 70. The inner wall portion and / or outer wall portion 123 may comprise (or be made of) the second polymer material. The second polymer material as defined above may improve the comfort of the earpiece 10 when engaged with the user's ear (e.g., ear canal 390) for extended periods. Additionally, the second polymer material provides sufficient stability for the earplug 120, especially when connected to the outlet 110. The second polymer material may be a thermoplastic, thermosetting, and / or elastic polymer. In some examples, the second polymer material may be a thermoplastic elastomer (TPE) or a fluoropolymer. In embodiments, the second polymer material may be silicone. In other embodiments, the second polymer material may be rubber. Specifically, the second polymer material may be derived from the group consisting of silicone, polyurethane, or polynorbornene. The second polymer material may be a biocompatible material (see the definition above). In some examples, the inner wall portion may comprise a higher-hardness (polymer) material, and the outer wall portion 123 may comprise a lower-hardness (polymer) material. These materials may have properties as defined for the second polymer material. Therefore, when the earplug 120 is attached to the outlet 110 (or when the earplug 120 is attached to the outlet), the inner wall portion with the higher-hardness material may increase the structural stability and / or stiffness of the earplug 120. The outer wall portion 123 with the lower-hardness material may improve the comfort of the earplug 120 when it is engaged with the user's ear (e.g., ear canal 390) for extended periods. The outer wall portion 123 and the inner wall portion may be integrally formed.

[0108] Figure 7 An alternative embodiment of the retainer 200 with a locking feature is shown, the locking feature including a first alignment feature arranged along the tubular wall portion 213 in a direction substantially parallel to the central axis x. In the example shown, the first alignment feature is in the form of an alignment key 700 extending outward from the second end 212 of the retainer portion 210. The alignment key 700 may be integrally formed with the tubular wall portion 213. Figure 7 As shown, the alignment key 700 can be positioned at a location along the circumferential direction (u), which is relative to the maximum radius Rmax of the retainer 200. Figure 3DThe position of the retainer 200 is substantially aligned. In some embodiments, the retainer 200 may also include an opening 702 aligned with a port (not shown) on the housing 100, such as that described in U.S. Patent Application No. 17 / 574,744, filed January 13, 2022, entitled “In-ear Audio Output Device with a Stability Band Designed to Minimize Acoustic Port Blockage,” the full disclosure of which is incorporated herein by reference.

[0109] refer to Figure 7 and Figure 8 The housing 100 includes a mating locking feature that engages with a locking feature of the retainer 200 to suppress (e.g., prevent undesirable movement relative to the housing 100 in the direction of center x and / or in the circumferential direction u). Figure 8 As shown, the locking feature includes a groove 800 extending around the outer circumference of the intermediate housing portion and a second alignment feature in the form of an alignment notch 802.

[0110] When connected, the tubular wall portion 213 of the retainer portion 210 is at least partially inserted into the groove 800. Figure 8 In the alignment key 700, the alignment key 700 is placed within the alignment notch 802, as shown in the figure. Figure 9 As shown. The engagement of the alignment key 700 and the alignment notch 802 provides visual and mechanical confirmation of proper alignment between the retainer 220 and the housing 100, and thus helps ensure the specific orientation of the cantilever portion 220 of the retainer 200 relative to the housing 100 and / or the mouthpiece 110. In some cases, for example, the alignment key 700 and the alignment notch 802 may be positioned such that they are visible when the handset 10 is stored in the charging case, so that when the user opens the charging case, he / she can clearly see whether the retainer 200 is properly aligned relative to the housing 100, ensuring that the relative position of the retainer 200 does not shift during storage. The engagement of the alignment key 700 and the alignment notch 802 also inhibits rotation of the retainer 200 relative to the housing 100 (e.g., about a circumferential axis u), helping to ensure that the retainer 200 remains properly aligned with the housing 100.

[0111] Figure 10 Another specific embodiment is shown, wherein the first alignment feature (on the retainer 200) takes the form of an alignment notch 1000, and the second alignment feature (on the housing 100) takes the form of an alignment key 1002.

[0112] Figure 11 Another specific embodiment is shown, wherein the alignment key 700 on the retainer 200 is relative to the maximum radius Rmax ( Figure 3D ) offset (i.e., arranged at a non-zero angle in the circumferential direction). Additionally, although Figure 7 An alignment key 700 is shown extending outward from the second end 212 of the retainer portion 210, but the alignment key 700 may alternatively extend outward from the first end 211 of the retainer portion 210, such as... Figure 11 As shown.

[0113] Figure 12 Another specific embodiment is shown, wherein the alignment notch 1000 on the retainer 200 is relative to the maximum radius Rmax ( Figure 3D Offset (i.e., arranged at a non-zero angle in the circumferential direction). For example... Figure 12 As shown, the aligned notch 1000 can be aligned with the transition region 230 between the first cantilever sub-part 221 and the second cantilever sub-part 222. Figure 3C )alignment.

[0114] In some specific implementations, the retainer 200 and the housing 100 may each include multiple alignment features. For example, Figure 12 The retainer 200 shown includes a pair of alignment notches 1000 that align with a corresponding pair of alignment keys 1002 (one shown) on the housing 100. Alternatively, the retainer 210 may include a plurality of alignment keys that engage with corresponding alignment notches on the housing 100. Alternatively or additionally, the retainer 200 may include alignment keys and alignment notches that engage with mating alignment notches and mating alignment keys on the housing 100, respectively.

[0115] Figures 9 to 12 The third, fourth, fifth, and sixth implementation schemes of the earpiece 10 are illustrated respectively. The above section discusses the first implementation scheme (…). Figures 2A to 2D ) and the second implementation plan ( Figures 4A to 4C The features described can be applied to the third, fourth, fifth and / or sixth implementation schemes, and vice versa.

[0116] The earpiece 10 described herein is applicable to a variety of devices, including audio headphones, hearing aids, hearing-aided headphones, noise-masking earplugs, ANR headphones, aviation headphones, and other devices including in-ear components. According to a fourth aspect of this disclosure (not shown in the figures), an in-ear audio device is provided, comprising at least one earpiece 10 as described above (having a retainer 200). In one example, a first earpiece 10 may be configured to engage with a user's right ear, and a second earpiece 10, as a mirror image of the first earpiece 10, is configured to engage with the user's left ear. The in-ear audio device may be configured to connect to a wireless network (e.g., Bluetooth or WiFi network), and the in-ear audio device may be adapted to wirelessly receive personalized acoustic signals from different audio devices (e.g., mobile phones, televisions, or radios). Furthermore, the in-ear audio device may be an input device and / or an output device. In some examples, the in-ear audio device may be an in-ear audio output device (e.g., acting as a speaker), or an in-ear audio input device (e.g., acting as a microphone), or a combination thereof.

[0117] Many uses and deviations may be made from the particular apparatus and techniques shown herein without departing from the concept of the invention. Therefore, the invention should be construed as encompassing each feature disclosed herein, as well as each novel feature and novel combinations thereof, and is limited only by the spirit and scope of the appended claims.

Claims

1. A retainer, the retainer comprising: Retainer section; A tubular wall portion extending about a central axis that extends through the center of the retainer; Cantilever section; as well as Locking feature, the locking feature comprising: A first alignment feature is arranged along the tubular wall portion in a direction substantially parallel to the central axis.

2. The retainer according to claim 1, wherein the first alignment feature is arranged at a position substantially aligned with the position of the maximum radius of the retainer.

3. The retainer according to claim 1, wherein the cantilever portion comprises a first cantilever sub-portion and a second cantilever sub-portion.

4. The retainer of claim 1, wherein the retainer portion includes a first end and a second end, the second end being substantially opposite to the first end. The first end is configured to be more inward than the second end when the retainer is worn by the user, and The first alignment feature is disposed along the second end of the retainer portion.

5. The retainer according to claim 4, wherein the first alignment feature includes an alignment key extending outward from the second end of the retainer portion.

6. The retainer according to claim 4, wherein the first alignment feature includes an alignment notch extending from the second end toward the first end.

7. The retainer of claim 4, wherein the cantilever portion is coupled to the retainer portion between the first end and the second end.

8. The retainer of claim 4, wherein the cantilever portion includes a connecting edge and a free edge, the free edge being substantially opposite to the connecting edge. The cantilever portion is connected to the retainer portion at the connecting edge, and The connecting edge is arranged closer to the first end than the second end, and the free edge is arranged between the connecting edge and the second end.

9. The retainer of claim 8, wherein the cantilever portion includes a convex curved section between the connecting edge and the free edge.

10. The retainer of claim 8, wherein the retainer is configured such that when the retainer is worn by a user, the connecting edge is more inward than the free edge.

11. The retainer of claim 1, wherein the cantilever portion defines a groove shape, wherein the groove shape is formed by the outer circumferential surfaces of the cantilever portion and the retainer portion.

12. The retainer of claim 11, wherein when the retainer is worn by a user, the bottom of the groove shape is further inward than the opening of the groove shape.

13. The retainer of claim 1, wherein the cantilever portion is configured to engage at least a portion of the outer wall of the concha of the user's auricle.

14. The retainer of claim 1, wherein the cantilever portion extends beyond about 30% to 70% of the entire circumference of the retainer portion.

15. The retainer of claim 1, wherein the cantilever portion comprises: The first cantilever portion is shaped to flexibly fit under the antitragus of the wearer's ear when the retainer is worn. as well as The second cantilever portion is shaped to flexibly fit below the antihelix of the wearer's ear when the retainer is worn. The first side of the first cantilever portion is mainly on a first plane, and the first side of the second cantilever portion is mainly on a second plane, which is different from the first plane.

16. A handset, the handset comprising: The retainer according to claim 1, and A housing configured to be coupled to the retainer. The housing includes a second alignment feature configured to align with a first alignment feature on the retainer to ensure a specific orientation of the cantilever portion of the retainer relative to the housing.

17. The earpiece of claim 16, wherein the first alignment feature includes an alignment key extending outwardly from the second end of the retainer portion, and the second alignment feature includes an alignment notch configured to receive the alignment key.

18. The earpiece of claim 16, wherein the first alignment feature includes an alignment notch extending from the second end toward the first end, and wherein the second alignment feature includes an alignment key configured to engage the alignment notch.

19. The earpiece of claim 16, wherein the housing further includes a groove configured to receive the tubular wall portion.

20. The earpiece of claim 19, wherein the groove extends around the outer circumference of the housing.

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