Storage structure for wireless earphone and wireless earphone
The housing structure for wireless earphones facilitates quick and secure storage and retrieval by rotating the earphones into engagement recesses, addressing the issues of time-consuming lid operation and accidental dropping.
Patent Information
- Application Number
- JP2024044853
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-10-03
AI Technical Summary
Existing wireless earphone storage devices with lids are time-consuming to open and require forceful extraction, risking the earphones from slipping and falling due to sudden release from magnetic forces.
A housing structure with a longitudinal shape and engagement recesses allows earphones to be inserted and rotated for secure storage, using protrusions and engagement recesses for reliable retention without a lid, and optional locking or magnetic structures for enhanced stability.
Enables quick and reliable removal of earphones from storage without falling, ensuring secure holding through rotational resistance and optional locking or magnetic forces.
Smart Images
Figure 2025144929000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a housing structure for a wireless earphone and a wireless earphone. [Background technology]
[0002] A storage device with a charging function that stores wireless earphones is described in Patent Document 1. The storage device described in Patent Document 1 includes a box-shaped housing that stores a pair of wireless earphones and a lid that opens and closes the housing. A magnet is attached to the housing to keep the earphone bodies of the stored pair of wireless earphones oriented in the same direction. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-110417 Summary of the Invention [Problem to be solved by the invention]
[0004] In a storage device with a lid like the one described in Patent Document 1, when the lid is closed and stored, the earphone main body is covered and hidden by the housing and the lid. This prevents external force from being applied directly to the earphone main body, and prevents droplets from falling on it or it coming into contact with other components.
[0005] On the other hand, when using the earphones, the lid must be opened, which is time-consuming. Furthermore, when removing the earphones from the housing, the earphones must be grasped with the fingers and pulled straight out with sufficient force to resist the magnetic force of the magnet. Therefore, if the earphones are suddenly released from the magnetic force and gain too much momentum, they may slip off the fingers and fall. Therefore, there is a demand for a storage structure that allows the earphones of wireless earphones stored in a storage device to be quickly and reliably removed and ready for use without dropping them.
[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a wireless earphone storage structure and a wireless earphone that can be reliably and quickly removed from a stored state. [Means for solving the problem]
[0007] In order to solve the above-mentioned problems, one embodiment of the present invention has the following structures 1) and 2). 1) A housing having a longitudinal shape; a receiving portion formed as a recess on an end surface of the housing in the longitudinal direction; a protrusion formed on an outlet side edge of the inner surface of the accommodating portion and protruding radially inward; a storage device having a wireless earphone having a housing that houses a speaker unit and has a housing portion formed at one edge thereof, the cross section of which has a shape having long and short sides; Equipped with the housing has an engagement recess formed on an outer surface of the accommodation portion so as to become deeper from the short side portion, which is a first circumferential direction, toward the long side portion, This is a storage structure for a wireless earphone, in which the earphone is inserted into the storage section with the short portion of the housing in a position corresponding to the protrusion on the case, and then rotated in the first circumferential direction to cause the protrusion to enter and engage with the engagement recess, thereby storing the earphone in the storage section. 2) a speaker unit; a housing that accommodates the speaker unit and has an accommodation portion formed at one edge thereof, the accommodation portion having a cross section having a long side and a short side; an engagement recess formed on an outer surface of the housing portion so as to become deeper from the short side portion in a first circumferential direction toward the long side portion; It is a wireless earphone equipped with [Effects of the Invention]
[0008] According to one aspect of the present invention, an effect is obtained in that the device can be reliably and quickly removed from the storage state. [Brief explanation of the drawings]
[0009] [Figure 1A] FIG. 1A is a perspective view showing a storage structure SK according to one aspect of an embodiment of the present invention. [Figure 1B] FIG. 1B is a front view, partially in section, showing the storage device 1 of the storage structure SK. [Figure 1C] FIG. 1C is a side view of the storage device 1. FIG. [Figure 1D] FIG. 1D is a cross-sectional view taken along the line S1D-S1D in FIG. 1B. [Figure 2A] FIG. 2A is a side view, partially in section, of the wireless earphone 2 housed in the housing device 1. FIG. [Figure 2B] FIG. 2B is a front view of the wireless earphone 2. [Figure 2C] FIG. 2C is a cross-sectional view taken along the line S2C-S2C in FIG. 2A. [Figure 2D] FIG. 2D is a cross-sectional view taken along the line S2D-S2D in FIG. 2A. [Figure 3A] FIG. 3A is a partial cross-sectional front view showing the state in which the wireless earphone 2 is housed in the housing device 1. FIG. [Figure 3B] FIG. 3B is a cross-sectional view corresponding to the position S3B-S3B in FIG. 3A, illustrating the procedure for storing the wireless earphone 2 in the storage device 1. [Figure 3C]FIG. 3C is a cross-sectional view taken along the line S3C-S3C in FIG. 3A. [Figure 3D] FIG. 3D is a cross-sectional view taken along the line S3D-S3D in FIG. 3A. [Figure 4A] FIG. 4A is a partial perspective view showing an enlarged view of the first locking structure LK1 provided in a wireless earphone 2A, which is a modified example of the wireless earphone 2. [Figure 4B] FIG. 4B is a cross-sectional view taken along the line S4B-S4B in FIG. 4A. [Figure 5A] FIG. 5A is a partial perspective view showing an enlarged view of a second locking structure LK2 provided in a storage device 1A, which is a modified example of the storage device 1. FIG. [Figure 5B] FIG. 5B is a cross-sectional view taken along line S5B-S5B in FIG. 5A, showing the second locking structure LK2 in a locked state. [Figure 5C] FIG. 5C is a cross-sectional view taken along line S5B-S5B in FIG. 5A, showing the second locking structure LK2 in an unlocked state. [Figure 5D] FIG. 5D is a cross-sectional view taken at a position corresponding to S5D-S5D in FIG. 5A, showing the second locking structure LK2 in the locked state with the wireless earphone 2 stored. [Figure 6] FIG. 6 is a partial cross-sectional view taken along a line S6-S6 in FIG. 3A, showing an example in which magnets 61 and 62 are provided. DETAILED DESCRIPTION OF THE INVENTION
[0010] A wireless earphone storage structure and an embodiment of a wireless earphone according to the present invention will be described with reference to FIGS. 1A to 3D, focusing on a storage structure SK and an earphone 2, which are one embodiment of the present invention. FIG. 1A is a perspective view showing a storage structure SK according to one embodiment of the present invention. FIG. 1B is a partial cross-sectional front view showing a storage device 1 of the storage structure SK. FIG. 1C is a side view of the storage device 1. FIG. 1D is a cross-sectional view taken along the line S1D-S1D in FIG. 1B. FIG. 2A is a partial cross-sectional side view of a wireless earphone 2 stored in the storage device 1. FIG. 2B is a front view of the wireless earphone 2. FIG. 2C is a cross-sectional view taken along the line S2C-S2C in FIG. 2A. FIG. 2D is a cross-sectional view taken along the line S2D-S2D in FIG. 2A. FIG. 3A is a partial cross-sectional front view showing the wireless earphone 2 stored in the storage device 1. FIG. 3B is a cross-sectional view taken along the line S3B-S3B in FIG. 3A, illustrating the procedure for storing the wireless earphone 2 in the storage device 1. Fig. 3C is a cross-sectional view taken along the line S3C-S3C in Fig. 3A, and Fig. 3D is a cross-sectional view taken along the line S3D-S3D in Fig. 3A.
[0011] As shown in Fig. 1A, the housing structure SK is a structure for housing a pair of earphones 2, one for the left ear and one for the right ear, in a housing device 1. The earphones 2 are wireless earphones (hereinafter also referred to as wireless earphones). Fig. 1A shows a state in which one earphone 2 of the pair is housed in the housing device 1, and the other earphone 2 is about to be housed. Here, housing the earphones 2 does not necessarily mean that the earphones 2 are housed and held so that they are entirely hidden, but also includes that only part of the earphones 2 is housed and held in the housing device 1.
[0012] 1A and 1B, the storage device 1 has a cylindrical housing 11. The housing 11 has storage sections C at both ends that are hollowed out in the axial direction so that their cross sections are circular. The axial direction of the storage device 1 is defined as the X direction, and two axes that are perpendicular to the X direction and perpendicular to each other are defined as the Y direction and the Z direction, respectively. The X, Y, and Z directions are indicated by arrows in FIG. 1A.
[0013] 1B, a pair of protrusions 112 having predetermined lengths in the axial and circumferential directions are formed at opposing positions in the diameter direction (Z direction in this example) on the edge of the outlet side of the storage section C, protruding radially inward. The tip surface 112a of each of the protrusions 112 is formed in an arc shape. An electrode 12 is exposed and disposed at a portion adjacent to the inside of each of the protrusions 112. A connector 13 for electrical connection to the outside is provided on the outer peripheral surface of the central portion of the housing 11 in the X-axis direction.
[0014] 1B and 1C, a pair of restricting protrusions 119 are formed on the inner surface 11a of the housing C at diametrically opposed positions to protrude inward. The restricting protrusions 119 are formed on the rear side with their protrusion origin at a position a distance La inward from the outlet edge of the housing C. The protruding height of the restricting protrusions 119 is set so that the inner diameter D119 (see FIG. 1C) of the inner surface of the restricting protrusions is greater than the outer diameter D22 (see FIG. 2B) of the earpiece, which will be described later. 1C, the circumferential formation position of restricting protrusion 119 is within a range of approximately 90° from a position corresponding to the Y-axis direction to a position near protrusion 112, but this is not limited thereto and may be over the entire circumference. As shown in FIG. 1C, by forming restricting protrusion 119 only in a range used for positioning, which will be described later, it is possible to reduce the amount of resin used when molding housing 11 with resin.
[0015] 1A, the earphone 2 includes a housing 21 and an earpiece 22. The earpiece 22 is an umbrella-shaped elastic member that is detachably attached to a cylindrical sound tube portion 212 that protrudes from the housing 21 and is inserted into the ear canal during use. A pair of engagement recesses 211 are formed in the housing 21 at opposing positions in the circumferential direction. A pair of electrodes 23 are arranged adjacent to the engagement recesses 211 so as to be exposed. The housing 21 will be described in detail later.
[0016] 1B, an electronic circuit unit 14 is disposed inside the housing 11. The electronic circuit unit 14 includes a battery and a charging control unit (neither of which are shown), and is electrically connected to the electrodes 12 and the connector 13. The electrodes 12 are adapted to come into contact with electrodes 23 of the earphones 2 in a housed state, which will be described later. This allows the earphones 2 to be charged by the electronic circuit unit 14. The electronic circuit unit 14 is also connected to an external power source via the connector 13, and the battery of the electronic circuit unit 14 is charged.
[0017] 1C, in the housing portion C of the housing 11 of the housing device 1, the inner surface 11a is formed with an inner diameter D1L. The protrusion 112 is formed with a width W1, and its radial tip surface 112a is formed as an inner circumferential surface with an inner diameter D1S that is smaller than the inner diameter D1L. As shown in FIG. 1D, the electrode 12 is formed to be curved in an arc shape, and is embedded in the housing 11 so that its inner surface is exposed to the inner surface 11a of the housing 11.
[0018] Next, the earphone 2 will be described with reference to FIGS. 2A to 2D. The housing 21 of the earphone 2 is formed in a generally elliptical cylindrical shape. If the axis of the housing 21 is the X2 axis, a cylindrical sound tube portion 212 having a sound guide path 213 extends along the X2 axis from one end face of the housing 21, and an earpiece 22 made of silicone rubber or the like is removably attached to the sound tube portion 212 by a tight fit. As shown in FIG. 2B, which is a front view seen from the X2 axis direction, the outer shape of the earpiece 22 is circular, and in the Z2 axis direction perpendicular to the X2 axis, the outer shape of the housing 21 is larger than the outer shape defined by the outer diameter D22 of the earpiece 22, and is smaller in the Y2 axis direction perpendicular to the Z2 axis. In other words, the cross-sectional shape of the housing 21 is an ellipse with a major axis D2L and a minor axis D2S, as shown in FIG. 2C.
[0019] 2A, inside housing 21, there is disposed speaker unit 24 facing audio guide path 213, and electronic circuit section 25 including a battery and wireless communication section (not shown) at the back of speaker unit 24. As a result, when earphone 2 is worn on the auricle with earpiece 22 inserted into the ear canal, earphone 2 receives an audio signal wirelessly from an external music playback device (not shown) and outputs the audio as audio from speaker unit 24. The audio output from speaker unit 24 passes through audio guide path 213 and is emitted into the ear canal from opening 22a at the tip of earpiece 22.
[0020] 2A and 2C, a pair of engagement recesses 211 are formed on the outer peripheral surface of housing 21 near the end where sound-tube portion 212 is formed, facing each other in the long axis direction. Specifically, in FIG. 2C, engagement recess 211 is formed as a recess having bottom surface 211a, which is an arc-shaped peripheral surface with a short axis D2S, and wall surface 211b, which extends parallel to the Z2 axis at a distance W2 from the Z2 axis of bottom surface 211a in the Y2 axis direction. The pair of engagement recesses 211 are formed point-symmetrically with respect to the axis (X2 axis) of housing 21. That is, one of the pair of engagement recesses 211 is formed as a recess on the upper left side of FIG. 2C so as to become deeper from the short side toward the long side, and the other engagement recess 211 is formed as a recess mainly on the lower right side.
[0021] As shown in FIG. 2D, the pair of electrodes 23 are curved along the surface around the major axis of the housing 21, and are embedded so that their outer surfaces are exposed on the outer surface 21a of the housing 21.
[0022] The storage device 1 can store an earphone 2 in each of the pair of storage sections C. The storage procedure will be described next.
[0023] The major axis D2L of the housing 21 of the earphone 2 is set to be the same as or slightly smaller than the inner diameter D1L of the inner surface 11a of the storage section C of the storage device 1. The minor axis D2S is set to be smaller than the inner diameter D1S of the tip surface 112a of the protrusion 112 of the storage section C. The outer diameter D22 of the earpiece 22 is set to be smaller than the inner diameter D1S of the tip surface 112a of the protrusion 112.
[0024] Therefore, the housing 21 in FIG. 2C is rotated counterclockwise around the X2 axis to assume a position in which the Z2 axis in FIG. 2C coincides with the Y axis of the housing 11 of the storage device 1, as shown in FIG. 3B. Then, in this position, the housing 21 is inserted into the storage section C with the earpiece 22 at the front (see arrow DR1 in FIG. 1A). As a result, the position where the protrusion 112 is formed corresponds to the minor axis portion of the housing 21, so the housing 21 can be inserted into the storage section C without interfering with the protrusion 112. The earpiece 22 that enters first has a small outer diameter D22, and therefore, enters without interfering with the protrusion 112 and the restricting protrusion 119.
[0025] When the housing 21 enters the receiving portion C a predetermined distance, it comes into contact with the restricting protrusion 119 and is restricted from entering.
[0026] Once the housing 21 abuts against the restricting protrusion 119 and entry is restricted, the user rotates the housing 21 in one circumferential direction. In this example, the housing 21 is rotated clockwise (counterclockwise in FIGS. 3B and 3C), which is a first circumferential direction relative to the entry direction (see arrow DR2 in FIG. 1A and arrow DR3 in FIG. 3B). The position and state where the housing 21 abuts against the restricting protrusion 119 are referred to as the entry restricted position and the entry restricted state, respectively.
[0027] When the earphone 2 is in the entry restriction position, the protrusion 112 of the casing 11 and the engagement recess 211 of the housing 21 are in corresponding positions in the X-axis direction where they can be engaged. That is, in the entry restriction position, the housing 21 is slidably rotated while being biased against the restricting protrusion 119 so as to prevent misalignment in the X-axis direction. As a result, as shown in FIG. 3C , the protrusion 112 enters and engages with the engagement recess 211 relative to the wall surface 211b of the engagement recess 211, restricting rotation of the housing 21. The protrusion 112 and the engagement recess 211 should preferably be formed so as to provide a slightly tight fit just before they abut against the wall surface 211b. This increases rotation resistance, and by continuing to rotate against that rotation resistance and abutting against the wall surface 211b, the user can sense by touch that the holding position has been reached, and the housing 21 is held in the storage section C without easily rotating in a second circumferential direction opposite to the first circumferential direction and coming off. That is, the earphones 2 are housed in the housing device 1. The position where the protrusions 112 of the earphones 2 abut against the wall surface 211b of the housing device 1 is hereinafter referred to as the housing position.
[0028] 3A and 3D, in the stored position, electrode 23 on housing 21 and electrode 12 on case 11 are in contact with each other and are electrically connected. At least one of electrode 23 and electrode 12 should protrude slightly in the radial direction to ensure electrical connection in the stored position. This allows earphone 2 to be stored and held in the storage device 1 in the stored position and to be charged.
[0029] As described above, the housing structure SK consisting of the housing device 1 and the earphones 2 can be held in place by just two actions: the earphones 2 are placed in a specific position around the axis, inserted into the housing device 1 in the X-axis direction, and then rotated around the X-axis. The earphones can be removed by performing the reverse procedure. As a result, the housing structure SK does not require the lid of the housing device to be opened in order to use the housed earphones, allowing the earphones 2 to be used quickly. Furthermore, in the housing structure SK, the holding force that maintains the earphones 2 in the housed position is the rotation resistance force about the axis of the housing device 1. Therefore, even if the earphones 2 are suddenly released from the rotation resistance force and gain momentum due to the force (torque) applied when rotating them in a second circumferential direction opposite to the first circumferential direction when removing them, they will only rotate within the housing section C, and there is no risk of them falling out of the housing section C.
[0030] The embodiments of the present invention are not limited to the above-described configurations, and may be modified within the scope of the present invention.
[0031] For example, the earphone 2 may be locked in the housed position so that it cannot be removed. This will be described below as Modification 1 and Modification 2.
[0032] (Variation 1) As Variation 1, an earphone 2A having a first locking structure LK1 will be described with reference to Figures 4A and 4B. Figure 4A is a partial perspective view showing an enlarged view of the first locking structure LK1 provided in the earphone 2A, which is a variation of the earphone 2. Figure 4B is a cross-sectional view taken along the S4B-S4B position in Figure 4A.
[0033] The earphone 2A of Variation 1 includes a housing 21A equipped with a first locking structure LK1. The first locking structure LK1 includes a locking member 26 and a coil spring 264. The locking member 26 is a resin member with a J-shaped cross section in a side view, with one arm being longer. Specifically, the locking member 26 includes a push portion 261 and a lock pin 262 that extend parallel to each other, and a base portion 263 that connects one end of these. In the housing 21A of the earphone 2A, an opening 211c is provided in the bottom surface 211a of the engagement recess 211, and an opening 26a is provided adjacent to the engagement recess 211 in the X-axis direction in the housing 21A. Inside the housing 21A, the opening 211c and opening 26a are connected to each other, and the locking member 26 is housed therein. The lock member 26 is biased radially outward by a coil spring 264, and in a natural state, the push portion 261 protrudes from the surface of the housing 21A, and the lock pin 262 protrudes from the bottom surface 211a of the engagement recess 211.
[0034] When the user pushes push portion 261 with their finger against the biasing force of coil spring 264 (see arrow DR4), integrated lock pin 262 sinks inward from bottom surface 211a (see arrow DR5). As a result, when storing earphone 2A in storage portion C, the user pushes push portion 261 with their finger so that lock pin 262 does not protrude into engagement recess 211, and protrusion 112 enters engagement recess 211 and abuts against wall surface 211b, achieving the stored position. Thereafter, the pushing of push portion 261 is released, and the biasing force of coil spring 264 causes lock pin 262 to return to and protrude into engagement recess 211. As a result, protrusion 112 is sandwiched between the protruding lock pin 262 and wall surface 211b, and even if housing 21A is rotated in the release direction, it abuts against lock pin 262, restricting its rotation. In other words, the locked state is maintained.
[0035] To remove the earphone 2A from the housing C, the push portion 261 is pressed, and with the lock pin 262 recessed from the engagement recess 211, the housing 21A is rotated in the direction of release from the housing.
[0036] (Variation 2) As Modification 2, a storage device 1A having a second locking structure LK2 will be described with reference to Figs. 5A to 5D. Fig. 5A is a partial perspective view showing an enlarged view of the second locking structure LK2 provided in storage device 1A, which is a modification of storage device 1. Fig. 5B is a cross-sectional view taken at position S5B-S5B in Fig. 5A, showing the locked state of the second locking structure LK2. Fig. 5C is a cross-sectional view taken at position S5B-S5B in Fig. 5A, showing the unlocked state of the second locking structure LK2. Fig. 5D is a cross-sectional view taken at a position corresponding to S5D-S5D in Fig. 5A, showing the locked state of the second locking structure LK2 with the earphone 2 stored therein.
[0037] While the above-described first modification has a first locking structure LK1 as a locking structure on the earphone 2A side, the second modification has a second locking structure LK2 as a locking structure on the housing device 1A side. The storage device 1A of the second modification includes a housing 11A equipped with a locking unit 5, which is a second locking structure LK2. The locking unit 5 has a slide plate 51 that is slidable in the axial direction of the housing 11A. The storage device 1A is formed with a through-hole 116 that corresponds to the shape of the slide plate 51 and allows it to be slidably attached. The slide plate 51 has a finger receiving portion 511, blind plates 512 and 513, a flexible piece 514, and a protruding head portion 515, and is made of resin.
[0038] Finger receiving portion 511 is the portion that is pressed with a finger when sliding, and has a non-slip uneven shape. Covering plates 512 and 513 are thin plate-like portions that extend in the X-axis direction from both ends of finger receiving portion 511, and cover through-hole 116 so that it cannot be seen when sliding. Flexible piece 514 is a thin arm-like portion that extends inward at an angle from the inner surface of finger receiving portion 511, and is flexible in the direction of approaching and retracting from finger receiving portion 511.
[0039] Figure 5B shows the state in which the slide plate 51 is in a slide position that is in a locked state, and the protruding head 515 at the tip of the flexible piece 514 protrudes from the inner opening of the through hole 116 to a height dt2 from the inner surface 11Aa of the housing 11A. In this state, if the protruding head 515 is pushed in a direction to sink from the inner surface 11Aa (upward in FIG. 5B), the tip portion of the flexible piece 514 comes into contact with the restricting wall 117 formed in the through-hole 116, and the pushing is restricted. In other words, the protruding portion of the protruding head 515 is maintained protruding from the inner surface 11Aa.
[0040] 5C, when slide plate 51 is slid to the left in the drawing, flexible piece 514 comes into contact with accommodation guide wall 118 formed in through-hole 116 and is deformed upward in the drawing (toward finger receiving portion 511). At this time, the tip of flexible piece 514 is moved away from the position where it comes into contact with restriction wall 117 due to the sliding, so that deformation of flexible piece 514 is permitted, and protruding head 515 does not protrude into through-hole 116 but sinks into housing 11A. In the locked state shown in FIG. 5B, as shown in FIG. 5D, the protruding head 515 protrudes into the storage section C and interferes with the long diameter section 21b, which is the long part of the housing 21 of the earphone 2, and the adjacent long diameter section, thereby restricting the rotation of the housing 21 in the removal direction.
[0041] A magnetic attraction structure using magnets may be used instead of the first locking structure LK1 and the second locking structure LK2. Specifically, as shown in Fig. 6, a magnet 61 may be disposed on the protrusion 112, and a magnet 62 may be disposed on the wall surface 211b of the engagement recess 211 in a direction such that the magnet 61 and the magnet 62 attract each other with magnetic force. As a result, when the earphones 2 are in the stored position, the magnets 61 and 62 exert a magnetic attractive force that prevents rotation in the release direction, and a certain amount of torque is required to rotate the earphones 2 in the release direction. As a result, the earphones 2 do not easily rotate from the stored position and are stably held. Furthermore, even if excessive torque that resists the magnetic attractive force is applied to the stored housing 21, causing the earphones 2 to gain too much momentum to escape from the magnetic attractive force, the earphones 2 only rotate within the storage section C, so there is almost no risk of the earphones 2 falling out of the storage section C.
[0042] It is also possible to provide one of the magnets 61, 62, with the other being a soft magnetic material rather than a magnet, so that magnetic attraction is exerted. In other words, it is also possible to provide a set of a magnet and a soft magnetic material that generates a magnetic attraction that prevents the earphone 2 housed in the housing C from rotating in a second circumferential direction opposite to the first circumferential direction, or a set of a pair of magnets, with one of the set located in the housing 21 of the earphone 2 and the other located in the housing 11 of the housing device 1. In Figure 6, it is also possible to provide only one of the magnets 61, 62 as a magnet, with the other being a soft magnetic material that is attracted by the magnetic attraction of the magnet.
[0043] The cross-sectional shape of the housing 21, 21A is not limited to an ellipse, and may be such that at least one edge on the side that is accommodated in the accommodation device 1 has a shape with long and short sides (for example, an oblong). The portion having long and short sides that is accommodated in the accommodation portion C is referred to as accommodation portion B (see FIGS. 1A and 2A). The cross-sectional shape of the entire housing 21, 21A is the same. That is, the earphone 2, 2A may have the housing 21, 21A and a knob that protrudes in the axial direction from the end of the housing 21, 21A opposite the earpiece 22 and can be gripped with the fingers, and the housing 21, 21A may be accommodated so as to be hidden in the accommodation portion C, and the knob protrudes from the accommodation portion C and can be gripped with the fingers. The shape of the housing 21, 21A of the earphone 2, 2A does not have to have the same cross-sectional shape along the entire axial direction. As long as the cross-sectional shape of at least the housing portion B, which is the portion that enters the housing portion C, has a long side and a short side, the cross-sectional shape of the exposed portion that does not enter the housing portion C other than the housing portion B may be circular and is not limited. The housings 11, 11A of the storage devices 1, 1A do not need to have the same cross-sectional shape throughout the axial direction. As long as at least the storage section C is carved out to have a circular cross-sectional shape, the external shapes of other parts are not limited.
[0044] The first locking structure LK1, the second locking structure LK2, and the magnetic attraction structure may be freely combined. By combining these multiple structures, the earphone 2 is more firmly held in the housing C at the stored position. Furthermore, even if a malfunction occurs in one structure, the earphone 2 is held in the housing C by the other structures, further improving the reliability of the holding. [Explanation of symbols]
[0045] 1,1A Storage Device 11,11A housing 11a, 11Aa inner surface 112 Protrusion 112a Tip surface 116 Through hole 117 Regulatory Wall 118 Containment Guidance Wall 119 Regulatory convexity 12 electrodes 13 Connectors 14 Electronic circuit section 2,2A Earphones (Wireless Earphones) 21,21A Housing 21a Exterior 21b Long diameter part 211 Engagement recess 211a Bottom 211b Wall surface 211c opening 212 Sound cylinder part 213 Voice Taxiway 22 earpiece 22a opening 23 electrodes 24 speaker units 25 Electronic circuit section 26 Locking member 26a opening 261 Push section 262 Lock pin 263 Base 264 Coil Spring 5 Locking section 51 Slide plate 511 Finger rest 512,513 Privacy screen 514 Flexible piece 515 Protruding head 61,62 Magnet B. Storage section C Storage section D119, D1L, D1S Inner diameter D2L Long diameter D2S Short diameter D22 outer diameter dt2 height La Distance LK1 First locking mechanism LK2 Second locking mechanism SK accommodation structure W1 width
Claims
1. a housing having a longitudinal shape; a receiving portion formed as a recess on an end surface of the housing in the longitudinal direction; a protrusion formed on an outlet side edge of the inner surface of the accommodating portion and protruding radially inward; a storage device having a wireless earphone having a housing that houses a speaker unit and has a housing portion formed at one edge thereof, the cross section of which has a shape having long and short sides; Equipped with the housing has an engaging recess formed on an outer surface of the accommodating portion so as to become deeper from the short side portion, which is a first circumferential direction, toward the long side portion, A wireless earphone storage structure in which the earphone is inserted into the storage section with the short portion of the housing in a position corresponding to the protrusion of the case, and then rotated in the first circumferential direction to cause the protrusion to enter and engage with the engagement recess, thereby storing the earphone in the storage section.
2. The wireless earphone housing structure according to claim 1 , further comprising a locking structure that restricts rotation of the earphone housed in the housing in a second circumferential direction opposite to the first circumferential direction.
3. The wireless earphone storage structure according to claim 2, wherein the locking structure is a first locking structure provided on the earphone and restricts the second circumferential rotation of the protrusion that has entered and engaged with the engagement recess by abutting against the protrusion.
4. The wireless earphone storage structure according to claim 2, wherein the locking structure is a second locking structure provided on the housing and restricts the rotation of the housing stored in the storage section in the second circumferential direction by abutting against the long diameter portion, which is the longitudinal portion.
5. The wireless earphone storage structure of claim 1, further comprising a set of a magnet and a soft magnetic material that generates a magnetic attraction that prevents the earphone stored in the storage section from rotating in a second circumferential direction opposite to the first circumferential direction, or a set of a pair of magnets, one of which is arranged in the housing of the earphone and the other in the case of the storage device.
6. A speaker unit, a housing that accommodates the speaker unit and has an accommodation portion formed at one edge thereof, the accommodation portion having a cross section having a long side and a short side; an engaging recess formed on an outer surface of the housing portion so as to become deeper from the short side portion toward the long side portion in a first circumferential direction; Wireless earphones with
Citation Information
Patent Citations
Case for charging and retaining portable hearing device
JP2018110417A