WO2015145775A1 - Headphone device - Google Patents

Abstract

One purpose of the present invention is to solve the problem of a cable exposed outside of a sound-emitting unit from getting tangled in the user's fingers. In order to meet this purpose, this headphone device (1) is provided with a sound-emitting unit (2) which houses a speaker device (48) comprising a diaphragm (49), and with a cable unit (43) which conducts an electric signal to the speaker device. The cable unit, detachably attached to the sound-emitting unit, is inserted into the sound-emitting unit from the bottom side of the sound-emitting unit, is arranged inside the sound-emitting unit so as to be radially outside of the diaphragm in the sound-emitting direction of the diaphragm, and is removed from the sound-emitting unit from the top side of the sound-emitting unit.

Description

Headphone device

The present invention relates to a headphone device including a sound emitting unit.

For example, Patent Document 1 discloses a one-piece cord type headphone device (not shown). In this headphone device, the input cord (cable) connected to the headphone connection terminal of the audio device is drawn downward from the left headphone main body (sound emitting part), and the input cord is fixed to the lower part of the left headphone main body. ing.

The input codes to the electroacoustic conversion unit in the right headphone body are bundled into the input codes to the electroacoustic conversion unit in the left headphone body through the headband. By pulling the input cord drawer into the headphone body on one side, the cord wiring is clean.

FIG. 1 shows another embodiment of a conventional headphone device. In the headphone device 35, the cable 36 is detachably fixed to the holding portion 39 of the outer surface (surface far from the user's ear) 38 a of the case 38 of the sound emitting portion 37. The user can remove the screw 39a of the holding portion 39 and replace the cable 36 with a new one.

Further, for example, Patent Document 2 discloses a headphone device (not shown) in which an arm portion on the sound emitting portion side can be rotationally moved with respect to a band portion. The arm portions of both the left and right channels can be rotated and moved in the front-rear direction of the user's head with respect to the band portion.

This headphone device has a pair of pressing parts connected to each front end of the band part, a pressing part connected to one end, a speaker connected to the other end, and a support arm that supports the speaker in a predetermined position. is doing. The support arm can be rotated and moved, for example, in the front-rear direction of the temporal region, with a horizontal axis orthogonal to the contact surface between the pressing portion and the user's temporal region as a center.

JP 2005-295461 A JP 2013-172371 A

For example, in the headphone device described in Patent Document 1 and other general headphone devices, the most common cause of failure is a failure in a cable that supplies an audio signal to the speaker device in the sound emission unit. In general, since the cable is fixed to the sound emitting unit, it is difficult for the user to replace the cable with a new one. On the other hand, the problem is solved in the headphone device 35 shown in FIG.

However, in the headphone device 35 (referred to as the first prior art) shown in FIG. 1, the outside of the arm portion 41 that connects the sound emitting portion 37 and the headband portion 40 (the side far from the user's head). The cable 36 is greatly exposed. For this reason, when used for a DJ (disc mug) that frequently changes the mounting state of the sound emitting unit 37 on the user's head, the cable 36 may be entangled with the user's fingers, etc. When 36 is frequently or strongly entangled with fingers or the like, there is a concern that the cable 36 may be disconnected.

Further, since the cable holding portion 39 protrudes from the outer surface 38a of the sound emitting portion 37, there is a concern that some users may feel uncomfortable with their palms and perform a DJ operation, for example. .

In addition, regarding the headphone device described in Patent Document 2 or a headphone device similar thereto, for example, when a conventional headphone device is used for a DJ (disc jug) or the like, the DJ (user) has left and right of the headphone device. Listen only to the sound of one of the channels, and the sound emission part of either the left or right channel is rotated (swinged) in the forward / backward direction, for example, in order to hear the sound in the hall such as a dance hall or party hall In some cases, it is used dynamically. It depends on the DJ (user) whether the sound emission part of the left or right channel is rotated and the sound emission part of which channel is not rotationally moved. The “channel” means, for example, a transmission path for audio signals.

For example, even when a user other than a DJ uses a general (static) method of listening to music with a headphone device, for example, it may be preferable that the sound emission sections of both channels do not rotate. is there.

However, the headphone device described in Patent Document 2 or a headphone device similar to the headphone device (referred to as the second conventional technology) has a problem that it cannot cope with these cases. That is, for example, when a DJ (user) performs work (DJ operation) by placing one sound emitting part of a headphone device on one ear and rotating the other sound emitting part from the other ear, for example, , One sound emitting part applied to the ear rotates unexpectedly with respect to the band part, and the DJ (user) misses the music he / she played or one sound emitted to the ear There is a concern that the band part rotates against the part unexpectedly and slips off the DJ (user) head, making it impossible to concentrate on the work.

In addition, when the user wants to listen to the music carefully, either of the sound emission parts applied to both ears, or both of them rotate and move unexpectedly with respect to the band part, Or, the band part rotates unexpectedly with respect to both sound emission parts applied to both ears and falls off the user's head, making it impossible to concentrate on listening to music. There were concerns.

The problem to be solved by the present invention is that the cable exposed to the outside of the sound emitting part entangled with the user's finger or the like, which occurs in the first prior art described above, or the cable holding that protrudes to the outside of the sound emitting part As an example, there is a problem that the department makes the user's palm feel uncomfortable. Further, as an example, there is a problem that the sound emitting portion may rotate and move with respect to the headband portion together with the arm portion, contrary to the intention of the user, which occurs in the second prior art described above.

The headphone device according to claim 1, comprising: a sound emitting unit that houses a speaker device having a diaphragm; and a cable unit that conducts an electrical signal to the speaker device, and is detachable from the sound emitting unit. A cable part is inserted into the sound emitting part from the lower side of the sound emitting part, and is disposed radially outside the diaphragm in the sound radiation direction of the diaphragm within the sound emitting part. It is featured from the upper side.

The headphone device according to claim 11, wherein an arm unit that connects the sound emitting unit and the headband unit, and a rotation mechanism that rotates the arm unit in the radial direction of the sound emitting unit with respect to the headband unit. And a control unit that is provided in the rotation mechanism and stops the rotational movement of the arm unit.

It is a figure which shows one form of the conventional headphone apparatus. BRIEF DESCRIPTION OF THE DRAWINGS It is a general view which shows the structure by the side of one sound emission part in 1st Example of 1st Embodiment of headphones apparatus of this invention. It is a figure which shows the sound emission part of the state which removed the ear pad. It is a figure which similarly shows the state which removed the ear pad and the cable unit from the sound emission part. It is the figure which reversed the ear pad so that the back side could be seen in the state which removed the ear pad from the sound emission part similarly. It is the figure which expanded the C section of FIG. 3 and was seen from the front side. FIG. 7 is a cross-sectional view corresponding to the arrow DD in FIG. 6. It is a general view showing a first example of the second embodiment of the headphone device of the present invention. It is the principal part enlarged view of 1st Example of a headphone apparatus similarly. FIG. 9 is a schematic cross-sectional view taken along line AA in FIG. (A) (b) is sectional drawing which shows the principal part of 2nd Example of a headphone apparatus. It is sectional drawing which shows the principal part of 3rd Example of a headphone apparatus. (A) is sectional drawing which shows each principal part of 4th Example of a headphone apparatus, (b) is each 5th Example of a headphone apparatus. It is sectional drawing which shows the principal part of 7th Example of a headphone apparatus. It is a perspective view which shows the principal part of 8th Example of a headphone apparatus. It is sectional drawing which shows the principal part of 9th Example of a headphone apparatus.

The first embodiment of the present invention will be described below.

A headphone device according to a first embodiment of the present invention includes a sound emitting unit that houses a speaker device having a diaphragm, and a cable unit that conducts an electrical signal to the speaker device, and the sound emitting unit The detachable cable part is inserted into the sound emitting part from the lower side of the sound emitting part when attached to an upright user's ear, and the sound radiation direction of the diaphragm in the sound emitting part In FIG. 4, the outer side of the sound emitting portion is disposed outside the sound emitting portion from the upper side of the sound emitting portion.

With this configuration, the cable part is housed inside the sound emitting part, so that the cable exposed to the outside of the sound emitting part is entangled with the user's finger etc. The problem that the cable holding part protruding outside the sound emitting part makes the user's palm feel uncomfortable is solved. Since the cable part is disposed radially outside the diaphragm in the sound emitting part, sound emission by the diaphragm is not disturbed.

Further, the sound emitting part side connector provided on the upper side of the sound emitting part and electrically connected to the speaker device, and the cable part extended out of the sound emitting part from the upper side of the sound emitting part And a cable side connector connected to the sound emission side connector.

With this configuration, since the cable part is connected to the speaker device in the sound emitting part via the cable side connector and the sound emitting part side connector, the cable side connector is fitted to or detached from the sound emitting part side connector. The cable can be easily replaced.

The sound emitting unit includes an arm unit that connects the sound emitting unit to the headband unit, and the sound emitting unit side connector and the cable side connector connected to the sound emitting unit side connector are configured to hear the sound emitting unit. It arrange | positions inside the said arm part with respect to the user who mounted | worn.

With this configuration, the cable side connector connected to the sound output side connector is hidden behind the arm, so that the user's fingers are not likely to interfere with the cable side connector, Further, deformation of the cable-side connector due to catching of fingers is prevented.

In addition, the sound emitting unit side connector and the cable side connector connected to the sound emitting unit side connector are more than the arm unit with respect to an upright user wearing the sound emitting unit on an ear. Located on the back side. With this configuration, for example, interference between the cable-side connector protruding from the sound emitting portion side connector and the arm portion is prevented, and the user can easily grasp (easily hold) the sound emitting portion ergonomically.

Further, the cable portion that is brought out of the sound emitting portion from the upper side of the sound emitting portion is disposed on the inner side of the arm portion with respect to a user who wears the sound emitting portion on an ear. With this configuration, the cable portion that is extended from the upper side of the sound emitting portion is disposed behind the arm portion, so that there is no concern that the cable portion touches or entangles the user's fingers or the like.

Further, a groove portion through which the cable portion is passed is provided in the sound emitting portion. According to this configuration, the cable portion can be accommodated in the groove portion, and the play of the cable in the sound emitting portion can be prevented. Further, by accommodating the cable portion with a certain length along the groove portion, it is possible to regulate the protruding length of the cable portion from the sound emitting portion to be constant.

The cable portion includes a plurality of cables, the plurality of cables are arranged in the groove portion in a depth direction of the groove portion, and one cable of the plurality of cables is disposed in the groove portion in the speaker. It arrange | positions at the side close | similar to an apparatus, and the other cable of the said some cables is arrange | positioned in the said groove part at the side far from the said speaker apparatus.

With this configuration, the two cables are arranged not in the radial direction of the sound emission part but in the axial direction, that is, in the depth direction of the groove part, so that the radial cross-sectional area, that is, the outer diameter of the sound emission part is small and compact. can do. One cable is disposed on the deep side of the groove and the other cable is disposed on the shallow side of the groove. For example, one cable can be connected to the speaker device of the most recent sound emitting unit having the groove, and the other cable can be connected to the speaker device of the other sound emitting unit on the far side.

The groove is covered with a cushion member. With this configuration, the groove portion is blocked by the sound emitting portion, and the cable portion is prevented from being detached from the groove portion.

Further, the cable portion includes a block portion, and the block portion is fixed to the concave portion following the groove portion in the sound emitting portion by screwing. With this configuration, the cable portion is fixed to the groove portion by screwing the block portion. Even when the cable part led out to the outside from the sound emitting part is pulled or the like, the cable part is not pulled out from the sound emitting part to the outside, and the length of the cable part outside is fixed.

Further, the sound emitting portion includes a case and an ear pad, the ear pad is detachable from the case, and the groove portion is provided in a wall portion exposed to the case side when the ear pad is detached. Yes.

With this configuration, remove the ear pad from the sound emission part, detach the cable part from the groove part of the wall part exposed to the case side, attach a new cable part to the groove part, reattach the ear pad to the sound emission part, Can be easily exchanged.

Hereinafter, a second embodiment of the present invention will be described.

A headphone device according to a second embodiment of the present invention includes an arm unit that connects a sound emitting unit and a headband unit, and the arm unit is rotationally moved in the radial direction of the sound emitting unit with respect to the headband unit. And a control unit that is provided in the rotation mechanism and stops the rotational movement of the arm unit.

This configuration solves the problem that the sound emission part may rotate and move with respect to the headband part together with the arm part against the will of the user.

Also, the sound emitting part and the arm part are arranged in a pair on the left and right, and the rotating mechanism and the control part are arranged in a pair on the left and right.

This configuration allows the left or right rotation mechanism to be fixed non-rotatable by the control unit according to the user's preference and needs. Alternatively, both the right and left rotation mechanisms are fixed to be non-rotatable by the control unit. If the control unit is released (if not used), both the left and right sound emitting units can be rotated relative to the headband unit. As described above, the user can make four types of selections: the left and right can be rotated, the left side can be rotated, the right side can be rotated, and the left and right cannot be rotated.

The rotation mechanism includes a headband unit-side rotation unit provided in the headband unit, an arm unit-side rotation unit provided in the arm unit, the headband unit-side rotation unit, and the arm unit-side rotation. A rotation shaft portion disposed in common with the head portion, and the arm portion side rotation portion rotates around the shaft portion with respect to the head band portion side rotation portion, whereby the head band portion In contrast, the arm portion rotates.

Further, a hole for inserting the shaft portion is provided in the headband portion side rotating portion and the arm portion side rotating portion, and a hole portion for inserting a fixing member is provided in the shaft portion. .

Further, the control unit includes a first hole provided in the headband unit side rotation unit, a second hole provided in the arm unit side rotation unit, the first hole unit, and the first hole unit. And a lock pin inserted into the second hole.

With this configuration, the headband side rotating part and the arm part side rotating part can be easily and reliably (strongly) locked at a low cost simultaneously with a single lock pin.

Further, the first hole portion and the second hole portion are arranged closer to the root of the arm portion side rotating portion than the shaft portion.

With this configuration, the lock pin is inserted and arranged on the rigid base end (root) side, not on the distal end side of the arm side rotation unit, so that even if a strong rotational force is applied to the lock pin, Locking is securely performed, and breakage of the distal end side of the arm portion side rotating portion is prevented.

The rotation mechanism is provided with a cover member that covers the control unit. Moreover, the fixing member for attaching the said cover member to the said rotation mechanism is provided. With this configuration, for example, a member such as a lock pin in the control unit can be pressed by the cover member to prevent the control unit from falling off the rotation mechanism.

Hereinafter, a headphone device according to an example of the first embodiment of the present invention will be described with reference to FIGS. In the second and subsequent embodiments, the same or similar components as in the first embodiment will be described using the same reference numerals as those in the first embodiment for convenience. Illustrations after the second embodiment are omitted.

(First Embodiment) FIG. 2 shows the structure of one (left side) sound emission part 2 side in the headphone device 1 of the first embodiment of the present invention.

As shown in FIG. 2, the headphone device 1 includes a pair of left and right sound emitting units 2 (see FIG. 8 of the second embodiment to be described later for the right sound emitting unit), and can be slid in the vertical direction on each sound emitting unit 2. An elongated plate-like arm portion 4 provided, a headband portion 6 (see FIG. 8) for connecting the left and right arm portions 4 and one (left side) of the sound emitting portion 2 are introduced from the lower side and are released. And a cable part 43 led out from the upper side of the sound part 2.

Furthermore, the cable part side connector 46 provided in the cable 44 of one of the cable parts led out from the upper part side of the sound emission part 2 (drawn), and the sound part 2 are provided. The sound emitting part side connector 24 (refer FIG. 8) which inserts and connects 46 is provided. One cable 44 is led out from the upper side of the sound emitting part 2 and then U-turned downward (the U-turn part is denoted by reference numeral 44a), and the sound emitting part side connector 24 (FIG. 8) is connected to the cable part side connector 46. )It is connected to the.

The other cable 45 of the cable portion 43 is led out from the upper side of one (left side) sound emitting portion 2 and passes through the inner surface 4c side (side closer to the user's ear) of the arm portion 4 to the headband portion. 6 (FIG. 8) is introduced into the other (right) sound emitting portion 2 along the inner surface. The other cable 45 also has a cable-side connector 46 at the tip, and is inserted and connected to the sound emitting part side connector 24 of the other sound emitting part 2.

The cable portion 47 led downward from the lower side of one of the sound emitting portions 2 has a synthetic resin outer skin 47a that covers the two cables 44 and 45 simultaneously. The cable portion 47 led downward is connected to an acoustic device (not shown) by a connector. An electric signal from an acoustic device (not shown) is conducted to the two cables 44 and 45 of the cable portion 43. The speaker devices 48 (FIG. 7) of the left and right sound emitting units 2 are grounded by a common ground (not shown).

The upper end portions 8 of the left and right arm portions 4 are connected to the left and right (inner and outer) wall portions 12 and 13 at the lower end portions of the headband portion 6 (FIG. 8) so as to be rotatable and movable by the rotation mechanism 5. . The left and right sound emitting units 2 are connected to the headband unit 6 (FIG. 8) via the arm units 4.

Each arm part 4 is slidably inserted from above into a hole 3d penetrating in the vertical direction of each sound emitting part 2. The arm portion 4 is formed of a synthetic resin, and has a plurality of protrusions 4b arranged in parallel in the vertical direction on an inner side surface (a surface closer to the user's ear) 4c. A portion (not shown) that fits into the protrusion 4 b is provided in the hole 3 d so that the vertical position of the sound emitting portion 2 relative to the arm portion 4 can be defined. This hole portion 3d is referred to as a connecting portion between the arm portion 4 and the sound emitting portion 2.

The sound emission part 2 includes a synthetic resin-made hard substantially cup-like case 3 and a synthetic resin-made flexible ear pad 7 fixed to the inner end (end part close to the user's ear) 3a of the case 3. And a speaker device 48 (FIG. 7) disposed inside the case 3. Sound is radiated from the diaphragm 49 of the speaker device 48 (FIG. 7) and transmitted to the user's ear through the opening 7a in the center of the ear pad 7. The sound radiation direction of the diaphragm 49 is a direction toward the ear.

FIG. 3 shows an example of the wiring of the cable part 43 in the circular wall part 50 at the inner end of the sound emitting part 2 with the ear pad 7 removed from the sound emitting part 2 of FIG. A state where the cable unit (module) 43 is detached from the sound emitting unit 2 is shown.

As shown in FIG. 3, the two cables 44 and 45 of the cable portion 43 are released along the outer peripheral side of the first half of the wall portion 50 at the inner end (side closer to the user's ear) of the left sound emitting portion 2. The sound part 2 is wired in an arc shape (substantially semicircular shape) from the lower side to the upper side (the arc-shaped cable portions are denoted by reference numerals 44b and 45b). A plurality of claw portions 52 for fixing the ear pad 7 of FIG. 2 are provided at substantially equal pitches on the outer peripheral side of the wall portion 50 at the inner end on the radially outer side of the arc-shaped cable portions 44b and 45b. The arc-shaped cable portions 44b and 45b are wired on the radially inner side of the claw portions 52 in the first half of the wall portion 50 at the inner end. The claw portion 52 includes a flexible plate piece 52a that protrudes from the wall portion 50 at the inner end, and a claw body (hook portion) 52b that extends radially outward from the protruding tip of the plate piece 52a.

The wall portion 50 at the inner end is formed integrally with each claw portion 52 from a synthetic resin. The wall portion 50 at the inner end covers the opening 3e at the inner end of the circular annular wall portion (circumferential wall) 3b of the case 3 of the sound emitting portion 2. The circular annular wall 3b of the case 3 is integrally connected to the tapered wall 3f on the outer side (the side far from the user's ear), and the tapered wall 3f is a circular wall 3c (bottom wall) on the outer end. , See FIG. 8).

An opening 54 formed between the radial rib 53a and the circular rib 53b and a plurality of small holes 55 provided on the radially outer side of the opening 54 are arranged on the wall portion 50 at the inner end, For example, sound radiation of the diaphragm 49 of the speaker device 48 (FIG. 7) inside the case is made uniform. The arc-shaped cable portions 44b and 45b in FIG. 3 are arranged on the outer side in the radial direction from the outer peripheral portion 49a of the diaphragm 49 (FIG. 7) (see FIG. 7). Thereby, there is no fear that the arc-shaped cable portions 44b and 45b obstruct the sound radiation of the diaphragm 49.

As shown in FIG. 4, a groove 56 is provided in an arc shape on the radially outer side of each small hole 55 in the first half of the wall portion 50 at the inner end, and the arc-shaped cable portions 44b and 45b are provided in the groove 56 as shown in FIG. Is housed. The arc-shaped cable portions 44 b and 45 b are led out from the sound emitting portion 2 through the inside of the lower block portion 57 and the tube portion 58 protruding below the block portion 57. As shown in FIG. 4, the wall portion 50 at the inner end is provided with a recess 59 that accommodates the block portion 57 following the groove portion 56, and a notch portion 60 through which the tube portion 58 is inserted following the recess 59. It is provided on the lower side of the annular wall 3b.

In this example, the notch 60 is provided at the lower end of the case 3, and as shown in FIG. 3, at least the tube 58 following the block 57 is the inner surface of the lower half of the arm 4 (near the user's ear). Wiring is performed along the side surface 4a (so as to be hidden from the outside by the arm portion 4). The “inside” is the side close to the user's ear along the axial direction of the sound emitting unit 2, and the outside is the opposite.

As shown in FIG. 4, the arc-shaped groove 56 follows the short groove 56 a curved upward on the upper side of the inner wall 50, and the upward groove 56 a is a notch on the upper side of the annular wall 3 b of the case 3. It communicates with the part 61. The upward groove 56 a and the upper notch 61 in this example are disposed at substantially the upper end of the case 3.

As shown in FIG. 3, the two cables 44 and 45 led out upward from the upward groove 56a and the notch 61 are the inner side surface (the surface closer to the user's ear) of the upper half of the arm portion 4c. Are hidden from the outside by the arm portion 4 (behind the arm portion 4). One cable 45 of the two cables 44, 45 passes through the inner side of the rotating mechanism 5 along the inner side surface 4c of the upper half of the arm part 4 and passes through the inner side of the headband part 6 (FIG. 8). It is guided to the other sound emitting unit 2 (see FIG. 8). Since the cable part 43 is not accommodated in the other sound emission part 2 (FIG. 8), formation of the groove part 56 is unnecessary.

Further, the other cable 44 is folded downward in an inverted U shape and connected to the sound emitting part side connector 24 (see FIG. 8) by the cable side connector 46 at the tip. The other cable 44, its cable-side connector 46, and the sound emission part connector 24 (FIG. 8) are arranged inside the arm part 4 (side closer to the user's ear). It is hidden (behind the arm part 4). As a result, when the user holds the sound emitting unit 2 and presses it against the ear, the cables 44 and 45 led out from the upper part of the sound emitting unit 2 and the cable side connector 46 are placed on the user's fingers. Interference or catching is prevented.

Further, the sound emitting part side connector 24 (FIG. 8) and the cable side connector 46 connected thereto are arranged on the rear side of the upper end part (top part) of the sound emitting part 2. The “rear side” means the rear side (relative to the user) as viewed from the user who places the sound emitting unit 2 on the ear. For example, the sound emitting part side connector 24 (FIG. 8) and the cable side connector 46 connected thereto are arranged along the rear end 4 d of the arm part 4 or on the rear side of the rear end 4 d of the arm part 4. Since the cable-side connector 46 is arranged on the rear side of the sound emitting unit 2, the cable-side connector 46 is prevented from colliding with the arm unit 4. It is easy to grasp (easy to hold). In addition, the user's fingers are less likely to hit the cable side connector 46 (i.e., less likely to interfere).

Further, in a state where the two cables 44 and 45 are accommodated in the arc-shaped groove portion 56, they are covered with the ear pads 7 and protected from the outside as shown in FIG. It is prevented that the cable portions 44b and 45b are entangled with or interfered with the fingers of the user because the exposure is lost.

For example, in professional headphones (1) such as DJ (disc mug) headphones, it is not only used statically by listening to music while wearing the left and right sound emission parts 2 on the left and right ears. Examples of how the headphone device 1 is used at the DJ site include the following.

In order for a user wearing the headphone device 1 to listen to surrounding sounds, one sound emitting unit 2 is fixed to the ear by hand, and the other sound emitting unit 2 is moved by hand, for example, in the front-rear direction. Push to release from ear.
-While the headphone device 1 is hung on the user's neck, only one sound emitting part 2 is applied to the ear.
-Grab only one sound emitting part 2 of the headphone device 1 with one hand and frequently touch it with or release it from the ear.
-Grasp one of the sound emitting units 2 of the headphone device 1 in a placed state with a hand and place it on the ear, and immediately place it.

As mentioned above, there are cases where it is used very dynamically. In this way, a dynamic usage is performed in which the sound emitting unit 2 of the headphone device 1 is moved quickly or frequently switched between wearing and non-wearing to the ear.

Even when the headphone device 1 according to the present embodiment is used in a dynamic manner, the cable unit 43 is prevented from being caught or interfered with the outside, and problems such as disconnection are less likely to occur.

As shown in FIG. 4, the radially inner side surface 52c of the claw portion 52 for fixing the ear pad is disposed after the radially outer surface 56b of the arc-shaped groove portion 56. The two cables 44 and 45 are smoothly inserted and guided into the groove portion 56 along the radially inner side surface 52 c of the claw portion 52. Further, even when the cables 44 and 45 are lifted from the groove portion 56, the cables 44 and 45 come into contact along the radial inner side surface 52 c of the claw portion 52, thereby preventing the cables 44 and 45 from dropping from the case 3. In addition, when the ear pad 7 is assembled to the case 3, the cables 44 and 45 are prevented from being caught between the ear pad 7 and the wall portion 50 at the inner end of the case side. As a result, the workability of assembling the cable portion 43 to the sound emitting portion 2 is enhanced.

The arc-shaped groove portion 56 is widened in a tapered shape on the lower side thereof (the widened portion is indicated by reference numeral 56c) and continues to the substantially rectangular recess 59. A protruding wall 59a is provided on the rear half side of the recess 59, and a female screw hole 59b is provided in the protruding wall 59a (may be a lower hole for screwing a tapping screw). The block portion 57 is fastened and fixed to the female screw hole 59b by the male screw member 62. The recess 59 is formed between the annular wall portion 3b of the case 3 and the annular rib 53b on the radially inner side, and the block portion 57 is formed in a substantially fan-like rectangular shape.

After the two cables 44 and 45 are led out from the front wall portion 57a of the block portion 57 in parallel in the vertical direction, the two cables 44 and 45 are twisted counterclockwise in FIG. 45c), and is accommodated in the groove 56 in a state of being overlapped in the left-right parallel in the axial direction of the case 3. Here, “upper and lower” is, for example, the longitudinal direction of the arm portion 4, and “left and right” is the plate thickness direction of the arm portion 4, that is, the depth direction of the groove portion 56.

The cable 44 wired along (in contact with) the bottom surface 56d (FIG. 7) of the groove portion 56 is led out of the case 3 from the upper portion of the groove portion 56 and then folded downward (the folded portion is denoted by reference numeral 44a). The cable side connector 46 at the front end side is inserted and connected to the sound emitting part side connector 24 (FIG. 8) of the same case 3.

The cable-side connector 46 is composed of a male (pin-shaped) terminal portion 46a and an insulating resin portion 46b that covers the terminal portion 46a and protrudes (exposes) the distal end side of the terminal portion 46a to the outside. The sound emission part side connector 24 (FIG. 8) is comprised by the bottomed hole provided in the cyclic | annular wall part 3b of case 3, and the female terminal part (not shown) arrange | positioned in the hole. Has been. The terminal part of the sound emission part side connector 24 (FIG. 8) is electrically connected to a voice coil (not shown) of the speaker device 48 (FIG. 7) in the sound emission part 2.

The cable 45 wired along the opening 56e side of the groove portion 56 (the side near the surface of the wall portion 50 at the inner end) is led out of the case 3 from the upper portion of the groove portion 56 and then the upper half of the arm portion 4. Are wired to the other sound emitting portion 2 (FIG. 8) along the inner surface 4c of the headband portion 6 (FIG. 8), and the cable-side connector 46 on the distal end side is connected to the other sound emitting portion-side connector 24. Inserted and connected.

The block 57, the two cables 44 and 45 wired upward from the block 57, the cable-side connectors 46 provided at the ends of the cables 44 and 45, and the cable 57 wired downward from the block 57 A cable portion 43, that is, a cable unit (cable module) is configured by the cable portion 47 and a connector (not shown) provided at the tip of the cable portion 47.

For example, when a failure such as disconnection occurs in the cables 44 and 45, the user purchases the cable unit 43 or uses the spare cable unit 43 to replace the defective cable unit 43.

When replacing the cable unit 43, the ear pad 7 is removed from the case 3, and the male screw member 62 of the block portion 57 is loosened with a screwdriver or the like (not shown). By pulling inward in the axial direction (toward the user's ear), together with the block portion 57, the two arc-shaped cable portions 44b and 45b are easily detached from the groove portion 56. The cable-side connectors 46 at the tips of the two cables 44 and 45 are detached from the sound emitting part side connectors 24 (FIG. 8) of the sound emitting parts 2 (the connector 46 can be detached in advance). In this way, the defective cable unit 43 can be easily detached from the headphone device 1.

To attach the new cable unit 43, contrary to the above, the block portion 57 is fitted in the recess 59 and fixed with the male screw member 62, and the two cables 44 and 45 are accommodated while being bent in an arc shape along the groove portion 56. (At this time, the two cables 44 and 45 are pushed into the groove 56 so as to be overlapped in the left and right (inside and outside) directions. The insulating sheaths of the two cables 44 and 45 may be bonded in the overlapping direction. Then, the ear pad 7 is assembled to the case 3 side, and each cable side connector 46 is inserted and connected to each sound emitting part side connector 24 (FIG. 8).

FIG. 5 shows an example of a fixing structure between the ear pad 7 and the case 3 side.

As shown in FIG. 5, the ear pad 7 covers a flexible pad body 63 made of a synthetic resin having a substantially circular shape with a semicircular cross section and an opening 7 b on the outer end (side far from the user's ear) of the pad body 63. It is composed of a synthetic resin flexible (elastic) or slightly hard circular annular plate-like cushion member 64 (see FIG. 7).

The cushion member 64 has an annular tapered wall 64a on the center side, and the tapered wall 64a faces the central opening 7a. Each cushion member 64 is provided with an elongated rectangular hole 65 for inserting and fitting each claw 52 formed to protrude from the wall 50 at the inner end on the case side. A radially inward claw body 66 (see FIG. 7) is provided on the radially outer inner surface 65a on the inlet side of the hole 65.

By inserting the respective claw portions 52 on the case 3 side into the respective hole portions 65 on the ear pad 7 side, the radially outward claw body 52 b of the claw portion 52 becomes the radially inward claw body 66 in the hole 65. The ear pad 7 is fixed (locked) to the case 3 by fitting. When the ear pad 7 is detached (unlocked) from the case 3, for example, by inserting a finger into the opening 7a at the center of the ear pad 7 and elastically pushing the hole 65 radially outward, It smoothly leaves from the gap formed between the part 65 and the part 65. The “radial direction” is the radial direction of the case 3 or the ear pad 7.

FIG. 6 is an enlarged view showing an example of the fixing structure of the block portion 57 of the cable unit (cable portion) 43 shown in FIG.

The block portion 57 is fixed in the concave portion 59 of the wall portion 50 at the inner end by the male screw member 62, and the cable portion 47 that continues downward from the block portion 57 is led out to the outside from the lower cutout portion 60 of the case 3. Two cables 44 and 45 are introduced into the groove portion 56 from the projecting wall 57 a on the front end side of 57. The two cables 44 and 45 are bent downward inside the block portion 57 and are inserted into the insulating tube portion 58 of the downward cable portion 43. Each cable 44 and 45 is comprised by the insulation coating and the metal conducting wire not shown penetrated by the inner side. The block part 57 and the recessed part 59 are formed in a substantially rectangular fan shape.

The protruding wall 57a of the block portion 57 is fitted into the widened portion 59c on the lower side of the groove portion 56 following the concave portion 59, and the taper shape of the groove portion 56 following the widened portion 59c (the width gradually decreases toward the upper side). In the portion 56c, the root portions of the two cables 44 and 45 led out from the projecting wall 57 are changed from two horizontal rows (a state where they are arranged in parallel in the width direction of the groove portion 56) to two vertical rows (in the depth direction of the groove portion 56). In a state of being aligned in parallel) and twisted in the direction of 90 °. Two cables 44 and 45 are accommodated in the arc-shaped groove 56 in a state of two vertical rows. In FIG. 6, reference numeral 4 a indicates a lower half portion of the arm part 4, Shows a groove-like opening 3d1 on the lower end side of the hole 3d of the case 3 that vertically penetrates the arm portion 4.

7 is a cross-sectional view corresponding to, for example, the arrow DD in FIG. 6, and mainly shows a groove portion 56 through which the two cables 44 and 45 pass and a structure for preventing the cables 44 and 45 from floating from the groove portion 56. It is.

The wall portion 50 of the inner end of the case 3 is disposed opposite to the inside of the diaphragm 49 of the speaker device 48 (to the user's ear), on the radially outer side of the outer peripheral portion 49a of the diaphragm 49, on the inner side. A groove portion 56 having a U-shaped cross section is provided in the end wall portion 50. A groove portion 56 is formed on the inner side of a wall portion 67 having a U-shaped cross section that protrudes outwardly in the axial direction of the case 3 from the wall portion 50 at the inner end. When the two cables 44 and 45 are arranged vertically (in the depth direction) in the groove portion 56, the cable 45 on the opening 56e side at the inner end of the groove portion 56 is substantially the same as the surface of the wall portion 50 at the inner end. The depth of the groove 56 is defined to the extent that it is located on the same plane (it may be slightly protruded from the opening 56e at the inner end of the groove 56). The width of the groove portion 56 is defined to be slightly larger than the outer diameter of the cables 44 and 45.

Since the two cables 44 and 45 are arranged in the groove portion 56 so as to overlap in the axial direction rather than in the radial direction, the sound emitting portion 2 is space-saving and compact in the radial direction. Since the groove part 56 is dug down using the space 68 in the case 3, there is no fear that the sound emitting part 2 is enlarged in the axial direction.

The surface of the radially outer portion of the wall portion 50 at the inner end, except for the portion on the center side of the wall portion 50 at the inner end facing the diaphragm 49 (the portion having the sound emitting opening 54 and the small hole 55) The ear pad side cushion member 64 (see FIG. 5) is disposed on the surface of the flange portion 69 at the inner end of the annular peripheral wall 3b of the case 3, and is fixed by the claw portion 52 of the wall portion 50 at the inner end. Yes. A claw body 52 b that is radially outward of the claw 52 is fitted in a claw body 66 that is radially inward in the hole 65 of the cushion member 64.

In this state, the cushion member 64 contacts or closely contacts the surface of the wall portion 50 at the inner end, and the back surface 64b of the cushion member 64 closes (covers) the opening 56e of the groove portion 56, so that the cables 44 and 45 from the groove portion 56 are covered. Prevents floating and jumping out. This prevents the cables 44 and 45 from jumping out from the groove 56 when the headphone device 1 is used, and rattling of the cables 44 and 45 in the groove 56, thereby causing damage to the cables 44 and 45 and generation of abnormal noise. Etc. are prevented.

A step portion 70 is provided on the radially inner side of the opening end of the peripheral wall 3b of the case 3, and the outer peripheral portion 50g of the wall portion 50 at the inner end is fitted to and supported by the step portion 70. A diaphragm 49, a voice coil (not shown) connected to the diaphragm 49, a magnet and a yoke outside in the axial direction from the diaphragm 49, and the like are disposed on the back side of the center of the wall portion 50 at the inner end, and the speaker A device 48 is configured. In FIG. 7, reference numeral 71 indicates a support column that supports the speaker device 48, for example.

(Second Embodiment) In the first embodiment, the lower cutout portion 60 that leads the lower cable portion 47 of the cable unit (cable portion) 43 to the substantially lower end position of the case 3 of the sound emitting portion 2. The upper notch 61 for leading out the two cables 44 and 45 of the cable unit 43 is provided at substantially the upper end position of the case 3 in the direction of about 180 ° with respect to the lower notch 60. In the embodiment, in FIG. 3, the upper notch 61 on the upper side of the case 3 phased 180 ° or more (or about 190 °) counterclockwise from the lower notch 60 substantially at the lower end position of the case 3. Is provided.

It is preferable that the two cables 44 and 45 led upward from the upper cutout portion 61 are positioned to face the inner side surface 4 c of the arm portion 4. The cables 44 and 45 may be arranged along the inner side of the rear end 4 d of the arm part 4 or the inner side of the front end of the arm part 4. Accordingly, the cables 44 and 45 are concealed from the outside on the inner side (back side) of the arm portion 4 to prevent the user's fingers from being caught. In this case, the cable-side connector 46 is arranged behind the rear end 4d of the arm part 4 but is arranged behind the arm part 4 than the cable-side connector 46 is located on the front side of the sound emitting part 2. In this way, interference with fingers and the like is suppressed.

Also, it is possible to arrange the notch 60 on the lower side of the case 3 slightly forward or slightly behind the lower end (directly below) of the case 3. In that case, the lower cable portion 47 led out from the lower cutout portion 60 is preferably disposed inside the arm portion 4 to prevent interference with fingers and the like. It may be arranged along the inside of the end. The “rear side” means the rear side (relative to the user) as viewed from the user who places the sound emitting unit 2 on the ear.

(Third embodiment) In the first embodiment, the pair of left and right sound emitting sections 2 are connected by the common headband section 6 (FIG. 8) via each arm section 3, but in the third embodiment, The headband unit 6 is not used, and the left and right sound emitting units 2 or only one (right or left) sound emitting unit 2 is fixed to the user's ear in an ear-hook manner. The ear hooks that replace the headband unit 6 may be independent on the left and right sides, or may be connected to the left and right like the headband unit 6. When only one sound emitting section 2 is used, one cable 44 is used instead of the two cables 44 and 45.

Hereinafter, a headphone device according to an example of the second embodiment of the present invention will be described with reference to FIGS. In the second and subsequent embodiments, the same or similar components as in the first embodiment will be described using the same reference numerals as those in the first embodiment for convenience. Illustrations after the second embodiment are omitted. Further, the same components as those in the first embodiment will be described with the same reference numerals.

(First Embodiment) FIG. 8 shows a headphone device 1 according to a first embodiment of the present invention. FIG. 9 similarly shows the main part of the headphone device 1, and FIG. 10 shows a schematic shape of the AA cross section of FIG.

As shown in FIG. 8, the headphone device 1 includes a pair of left and right sound emitting portions 2 and a case 3 of each sound emitting portion 2 that passes through the vertical direction and is made of a synthetic resin hard material that is slidable in the vertical direction. Each arm portion 4 and a synthetic resin headband portion 6 connected to the upper end portion of each arm portion 4 via each rotation mechanism 5 are provided.

Each sound emitting section 2 includes a hard, substantially cup-shaped case 3 made of synthetic resin, and a flexible ear pad 7 made of synthetic resin or the like provided on the inner end 3 a of the case 3. The “inner end” of the case 3 is an end portion on the side close to the user's ear (not shown).

The case 3 includes a circular annular peripheral wall 3b and a flat outer wall (bottom wall) 3c that continues from the peripheral wall 3b through a substantially tapered outer wall. Inside the case 3, components (not shown) such as a diaphragm and a voice coil connected to the diaphragm are disposed. The cable connected to the voice coil is not shown. The case 3 is provided with a hole-like connector 24 for electrically connecting cables.

Each arm portion 4 is in the shape of an elongated plate, and a plurality of protrusions 4b having a triangular cross section are provided in parallel in the arm longitudinal direction on the inner side surface 4a of each arm portion 4. The “inner side surface” of the arm portion 4 is a surface closer to the user's ear. Further, a positioning fixing portion (not shown) that is elastically fitted to the protrusion 4 b is provided in a hole portion 3 d that penetrates the case 3 in the vertical direction. As a result, the sound emitting unit 2 can be slidably positioned in the vertical direction with respect to the arm unit 4. The arm portion 4 can be extracted upward from the hole 3 d of the case 3.

The upper end portion of the arm portion 4, that is, the arm portion side rotating portion 8, is wider than the other arm portions in the front-rear direction and is formed in a substantially circular shape. The sound emitting unit 2 is connected to the headband unit 6 via the arm unit 4.

The headband portion 6 is formed in a curved shape so as to follow the shape of the user's head (not shown). A curved cushion material 9 is provided on the inner (lower) surface of the headband portion 6. The band portion 6a extended downward from the cushion material 9 is provided with triangular ribs 10 at the front and rear, which gradually become wider as it goes downward, and connects the lower ends of the front and rear reinforcing ribs 10 to each other. A curved bottom wall 11 that is convex upward is provided. The bottom wall 11 is formed wider in the left-right direction than the upper band portion 6b.

Further, as shown in FIG. 9, a pair of left and right (inner and outer) wall portions 12 and 13 are provided facing downward from the bottom wall 11, and a slit-like gap 14 is formed between the pair of left and right wall portions 12 and 13. Is formed. A pair of wall parts 12 and 13 comprise the lower end part of the headband part 6, and the lower half part of a pair of wall parts 12 and 13 is formed in the substantially semicircle shape by the side view. An upper end portion (arm portion side rotating portion) 8 of the arm portion 4 is inserted upward from below into the gap 14 between the pair of wall portions 12 and 13 so as to be rotatable. The arm portion 4 is rotatable with respect to the headband portion 6 in the radial direction of the sound emitting portion 2 (the front-rear direction of the user).

At least a pair of left and right wall portions 12 and 13 at the lower end portion of the headband portion 6, a gap 14 therebetween, and a bottom wall (connection wall) 11 on the upper side constitute a headband portion-side rotating portion 15, The substantially circular upper end portion constitutes the arm portion side rotating portion 8. A peripheral surface 8 a on the upper end side of the arm portion side rotating portion 8 is positioned so as to be rotatable along an arcuate lower surface 11 a of the bottom wall 11 of the headband portion rotating portion 15.

A circular shallow concave portion (groove portion) 16 is formed on the inner surface of the wall portion 12 on the inner side (side closer to the user's head) of the pair of left and right wall portions 12 and 13 of the headband portion-side rotating portion 15. ing. A similar shallow recess 17 (see FIG. 10) is also formed on the outer surface of the outer wall portion 13 of the pair of left and right wall portions 1 and 13. An inner cover member 18 fits into the recess 16 of the inner wall 12, and an outer cover member 19 fits into the recess 17 (FIG. 10) of the outer wall 13.

A hole 20 is provided in the center of the pair of left and right walls 12 and 13 concentrically with the recesses 16 and 17. The hole 20 is formed in a step shape (irregular shape) at least in the inner wall portion 12, and the stepped hole portion is composed of a large diameter hole 20 a on the inner side (side closer to the user's head) and an outer small diameter hole 20 b. The left and right (internal / external) wall portions 12 and 13 have respective hole portions 20 formed of upper and lower parallel flat surfaces 20c and front and rear circular arc surfaces 20d connecting the flat surfaces 20c. A circular hole 21 is provided in the arm part side rotation unit 8 coaxially (concentrically) with the hole 20. The inner diameter of the circular hole 21 is the same as the inner diameter of the irregularly shaped hole 20.

Further, a pair of left and right wall portions 12 and 13 of the headband portion-side rotating portion 15 at a position below the holes 20 and 21, that is, near the root 8 b (closer to the sound emitting portion 2) of the arm-side rotating portion 8. And the arm part side rotating part 8 are provided concentrically with the holes 22 and 23 having a circular cross section smaller in diameter than the holes 20 and 21. Lock pins 25 are inserted into the small diameter holes 22 and 23.

The control unit 26 for preventing the rotational movement of the arm part 4 with respect to the headband part 6 (or the rotational movement of the headband part 6 with respect to the arm part 4) by the lock pin 25 and the respective holes 22 and 23 into which the lock pin 25 is inserted. Is configured. The control unit 26 is provided in each headband unit side rotation unit 15 and each arm unit side rotation unit 8 in both the left and right channels (transmission paths). The hole 22 of the headband unit side rotation unit 15 is referred to as a first hole, and the hole 23 of the arm unit side rotation unit 8 is referred to as a second hole.

The lock pin 25 passes through the hole 22 of the wall portion 12 on the inner side of the headband portion side rotating portion 15, the hole portion 23 of the arm portion side rotating portion 8, and the hole on the outer wall portion 13 of the headband portion side rotating portion 15. It is inserted over the portion 22. After the outer cover member 19 is assembled to the outer wall portion 13 of the headband portion side rotating portion 15, the lock pin 25 is inserted. The lock pin 25 is assembled to the right rotation mechanism 5 and / or the left rotation mechanism 5 as appropriate by the user, for example.

The lock pin 25 is made of, for example, a metal or a hard synthetic resin in a cylindrical shape with a uniform outer diameter. The outer diameter of the lock pin 25 is defined to be slightly smaller than the inner diameters of the holes 22 and 23. The length of the lock pin 25 is equal to or slightly shorter than the distance from the surface 16a of the concave portion 16 of the inner wall portion 12 to the surface 17a of the concave portion 17 (FIG. 10) of the outer wall portion 13. Tapered chamfers 25 a are formed at the left and right ends of the lock pin 25.

The reason why the holes 22 and 23 for inserting the lock pins are arranged not on the upper end side of the arm portion side rotating portion 8 but on the lower end side, that is, near the root 8b of the arm portion side rotating portion 8 is, for example, When provided on the upper end side (free end side) of the side rotating portion 8, the upper end side portion of the arm side rotating portion 8 becomes fragile and damaged by the force in the rotational direction applied to the lock pin 25 and the holes 22 and 23. This is because it cannot be done.

The hole portion 22 is provided on the lower end side (free end side) of the headband portion side rotating portion 15, but the headband portion side rotating portion 15 includes a pair of left and right wall portions 12, 13. Since the hole portion 22 is provided through 13, the strength in the hole portion 22 is ensured and there is no problem.

Since the holes 22 and 23 are arranged on the lower end side of the arm part side rotating part 8, even when a strong force in the rotation direction acts on the lock pin 25 and the holes 22 and 23, the holes 22 and 23 are the guide pins. 25 is firmly received, and the rotation of the arm part 4 with respect to the headband part 6 or the rotation of the headband part 6 with respect to the arm part 4 is surely prevented without causing damage or the like to both the rotating parts 8 and 15.

The outer cover member (cap) 19 is formed of a synthetic resin and is hard, and includes a tapered wall portion 27, radial ribs 28 that reinforce the inner side of the tapered wall portion 27, and an inner end of the tapered wall portion 27. The circular annular surface 27a and the shaft portion 29 projecting inward from the center of the tapered wall portion 27 are provided. The shaft portion 29 has upper and lower parallel flat surfaces 29a for preventing rotation, and front and rear arc surfaces 29b connecting the upper and lower flat surfaces 29a.

The upper and lower flat surfaces 29 a of the shaft portion 29 are in contact with the upper and lower flat surfaces 20 c of the hole 20 of the headband portion side rotating portion 15, so that the outer cover member 19 cannot rotate with respect to the headband portion rotating portion 15. The arc surfaces 29b before and after the shaft portion 29 are in contact with the arc surfaces 20d and 21a before and after the hole portions 20 and 21 of the headband side rotating portion 15 and the arm portion side rotating portion 8, respectively. The arm part side rotating part 8 is supported so as to be rotatable in the front-rear direction with respect to the headband part side rotating part 15.

At the center of the shaft portion 29 of the outer cover member 19, a small hole portion 30 is provided in the axial direction from the shaft tip surface 29c, and a metal bolt (fixing member or male screw member) on the inner cover member 18 side is provided in the hole portion 30. Or rotating shaft body) 31 is screwed. A female screw is formed in advance in the hole 30, or the hole 30 is formed with a smaller diameter than the bolt 31, and the bolt 31 is screwed into the hole 30 by acting as a tapping screw. It is also possible to embed a nut (not shown) in the shaft portion 29 inside the hole portion 30. The bolt 31 includes a male screw shaft portion 31a and a circular head portion 31b, and the head portion 31b has a groove 31c into which a minus driver or the like is fitted.

The inner cover member 18 is formed of a synthetic resin and has a circular peripheral portion 18a that is slightly smaller in diameter than the concave portion 16 of the inner wall portion 12 of the headband portion-side rotating portion 15, and has a circular bolt insertion hole at the center. 32. On the inner end side (the side close to the user's head) of the inner cover member 18, a recess 18 b into which the head 31 b of the bolt 31 is fitted is formed. The outer end of the inner cover member 31 is provided with a non-rotating convex portion (not shown) that fits into the large-diameter portion 20a of the stepped hole 20 of the inner wall portion 12 of the headband portion-side rotating portion 15. It is preferable.

The surface on the outer side (the side far from the user's head) of the inner cover member 18 covers the opening of the hole 22 for inserting the lock pin in the inner wall portion 12 of the headband portion side rotating portion 15, and the outer cover. The inner annular surface 27 a of the member 19 covers the opening of the hole 22 for inserting the lock pin of the outer wall portion 13. Both cover members 18 and 19 also act as members for preventing the lock pin 25 from coming out.

The rotation mechanism 5 is constituted by the headband portion side rotation portion 15, the arm portion side rotation portion 8, the outer cover member 19 having the shaft portion 29, the inner cover member 18 and the bolt 31. The rotating mechanism 5 is disposed symmetrically on the left and right channels of the headphone device 1.

As shown in FIG. 10, the arm portion side rotating portion 8 is inserted between the left and right (inside and outside) wall portions 12, 13 of the headband portion side rotating portion 15, and the outer cover member 19 is disposed on the headband portion side rotating portion 15. The shaft portion 29 of the outer cover member 19 penetrates through the holes 20 and 21 of the outer wall portion 13, the arm portion side rotating portion 8, and the inner wall portion 12, and is attached to the outer wall portion 13. The inner end surface 27a of the cover member 19 contacts the outer surface 17a of the concave portion 17 of the outer wall portion 13.

The headband portion side rotating portion 15 and the arm portion side rotating portion 8 are rotatably supported by the shaft portion 29. The tip 29c of the shaft portion 29 is located on the outer side (right side in FIG. 10) than the inner end surface 16a of the inner wall portion 12 (does not protrude from the inner end surface 16a of the inner wall portion 12).

In this state, the lock pin 25 is inserted from the inner side toward the outer side along the small- diameter holes 22 and 23 of the headband portion side rotating portion 15 and the arm portion side rotating portion 8. The insertion tip (outer end) 25b of the lock pin 25 comes into contact with the inner end surface 27a of the outer cover member 19 to prevent further insertion.

Next, the inner cover member 18 is assembled to the concave portion 16 of the inner wall portion 12, and the bolt (FIG. 9) 31 passes through the hole portion 32 of the inner cover member 18 as indicated by the arrow B, and the headband portion side rotating portion 15. It is screwed into the hole 30 at the center of the shaft part 29 of the outer cover member 19 fitted in the large diameter holes 20 and 21 with the arm part side rotating part 8.

This prevents the shaft portion 29 from coming out of the large- diameter holes 20 and 21 between the headband portion side rotating portion 15 and the arm portion side rotating portion 8. Further, the outer end surface 18c of the inner cover member 18 approaches or comes into contact with the inner end surface 25a of the lock pin 25, and the lock pin 25 is prevented from coming out in the inner and outer directions.

When the lock pin 25 is fitted into the holes 22 and 23 of the headband portion side rotating portion 15 and the arm portion side rotating portion 8, the rotational movement of the headband portion side rotating portion 15 and the arm portion side rotating portion 8 is performed. (Rotation of the arm part side rotating part 8 with respect to the head band part side rotating part 15 and rotation of the head band part side rotating part 15 with respect to the arm part side rotating part 8) are prevented.

As described above, the hole 23 for inserting the lock pin is not provided at the upper end side (low rigidity part) of the arm part side rotation part 8 but at a position below the central hole part 21 (high rigidity part). As a result, the fear of damage on the upper end side of the arm portion side rotating portion 8 when a strong rotational force is applied to the lock pin 25 is eliminated.

The headphone device 1 of the above embodiment is provided to the user before the left and right lock pins 25 are inserted. For example, a DJ (user) loosens and removes the bolt 31 of the rotation mechanism 5 of either one of the left and right channels, removes the inner cover member 18, inserts the lock pins 25 into the holes 22 and 23, and moves the inner cover member. 18 is retightened with a bolt 18, and the headband side rotating unit 15 and the arm unit side rotating unit 8 are locked by the lock pin 25 so as not to rotate.

In this state, the user can listen to music or the like by placing the sound emitting units 2 on the left and right sides on the left and right ears, but remove the sound emitting unit 2 of either the left or right channel from the other ear, In many cases, the sound in the hall such as a venue is heard directly with the other ear, such as the sound emitting unit 2 shown on the left side of FIG.

For example, when a DJ (user) grasps one sound emitting part 2 and one arm part 4 or the headband part 6a on the upper side with one hand at the same time, One of the sound emitting portions 2 rotates and moves in the front-rear direction together with the arm portion 4 with respect to the headband portion 6a of the headband portion 6a. Since the rotation mechanism 5 that connects the side arm portion 4 and the headband portion 6 is locked (fixed) by the lock pin 25, one sound emitting portion 2 is prevented from rotating in the front-rear direction, Missing music is prevented.

Further, in the related art, for example, the headband portion 6 is likely to rotate and move in the front-rear direction against the force of the other sound emitting portion 2 being lifted up. 4 and the headband unit 6 are locked (fixed) by the lock pin 25, so that the headband unit 6 is prevented from rotating and the DJ (user) concentrates on the work. Can do.

For example, when a DJ (user) presses one sound emitting unit 2 against one ear with one hand and listens to music or the like, conventionally, the headband unit 6 is contrary to the intention. Rotating in the front-rear direction and dropped off from the DJ head, the rotating mechanism 5 that connects the arm 4 on the side of the sound emitting unit 2 and the headband 6 is locked by the lock pin 25. (Fixed) prevents the headband portion 6 from falling off the head due to rotational movement, and the headband held on the head even when one hand is separated from the sound emitting portion 2 The part 6 can maintain the state where one sound emitting part 2 is put on one ear (can continue to listen to music or the like).

Further, even if the user other than DJ is listening to music statically, if both the left and right rotating mechanisms 5 of the headphone device 1 are locked (fixed) by the lock pins 25, the headband unit 6 is used. Rotating movement against the intention of the left and right sound emitting sections 2 and rotating movement against the intention of the headband section 6 with respect to each sound emitting section 2 are prevented, so that the music can be appreciated carefully.

In addition, when it is desired to freely rotate the left and right sound emitting units 2 with respect to the headband unit 6 as in the prior art, the headphone device 1 may be used without the head pin 25 being inserted. It should be noted that which of the left and right sound emission parts 2 is applied to the ear and which of the left and right sound emission parts 2 is removed from the ear depends on the user (individual).

As described above, professional headphones such as DJ headphones are not only used in a static manner of listening to music with the left and right sound emission parts 2 attached to the left and right ears. Examples of how the headphone device 1 is used at the DJ site include the following.

In order for a user wearing the headphone device 1 to listen to surrounding sounds, one sound emitting unit 2 is fixed to the ear by hand, and the other sound emitting unit 2 is moved by hand, for example, in the front-rear direction. Push to release from ear.
-While the headphone device 1 is hung on the user's neck, only one sound emitting part 2 is applied to the ear.
-Grab only one sound emitting part 2 of the headphone device 1 with one hand and frequently touch it with or release it from the ear.
-Grasp one of the sound emitting units 2 of the headphone device 1 in a placed state with a hand and place it on the ear, and immediately place it.

As mentioned above, there are cases where it is used very dynamically. In this way, a dynamic usage is performed in which the sound emitting unit 2 of the headphone device 1 is moved quickly or frequently switched between wearing and non-wearing to the ear.

Even when these headphones are used in a dynamic manner by the headphone device 1 of the present embodiment, the rotational movement against the headband unit 6 against the intention of either one of the sound emitting units 2, or any one of the sound emitting units. Rotational movement contrary to the meaning of the headband part 6 with respect to 2 can be reliably prevented. Further, the left or right rotation mechanism 5 or both rotation mechanisms 5 are fixed by the control unit 26 so as not to rotate according to the user's preference and needs. As a result, DJ operations can be concentrated and performed accurately.

Second Embodiment In the headphone device 1 of the first embodiment, the lock pin 25 and the holes 22 and 23 into which the lock pin 25 is inserted are used as the control unit 26 for controlling the rotation of the arm unit 4. However, in the second embodiment, the configuration of other control units will be described.

As shown in FIG. 11 (a), as a control unit, a metal sphere 73, a spring member (preferably a compression coil spring) 74 that urges the sphere 73, and the sphere 73 and the spring member 74 are accommodated. A plunger 76 having a cylindrical case 75 that exposes (projects) about half of the sphere 73 in a state of being biased by the spring member 74 is used.

Further, a recess 77 or a through hole (not shown) having a semicircular cross section for fitting the spherical body 73 of the plunger 76 is provided in the arm portion side rotating portion 8 of the arm portion 4. A controller 78 is constituted by the plunger 76 and the recess 77 or through-hole. For example, the plunger 76 is fixed in the hole 22 of the wall 12 on the inner side of the headband-side rotating unit 15, and the recess 77 (the hole 23 of FIG. Provided. Alternatively, the plunger 76 is fixed in the hole portion 23 (FIG. 9) of the arm portion side rotating portion 8, and the concave portion 77 (or the hole portion 22 is also possible) is provided in the headband portion rotating portion 15. It is preferable to use a spring member 74 that is strong enough to prevent the arm portion 4 from being easily rotated with the sphere 73 fitted in the recess 77. In FIG. 11A, reference numeral 18 denotes an inner cover member, and reference numeral 19 denotes an outer cover member.

Further, as shown in FIG. 11 (b), the case 75 (FIG. 11 (a)) of the plunger 76 is excluded, and for example, a spring member 74 is provided in a bottomed hole 79 provided in the arm portion side rotating portion 8. For example, a pin-shaped member 80 longer than the sphere 73 is accommodated so as to be able to advance and retreat. Reference numeral 80a denotes a spring fixing portion. A through-hole 81 through which the pin-shaped member 80 enters is provided in, for example, the inner wall portion 12 of the headband portion-side rotating portion 15. Since the pin-shaped member 80 enters deeper into the through hole 81 or the recessed portion than the sphere 73, the rotation inhibiting force of the rotation mechanism 5 is increased. If the through-hole 81 is used, a through-hole 81 and the pin-shaped member 80 are inserted by inserting a jig rod or the like into the through-hole 81 and pushing the tip of the pin-shaped member 80 against the urging force of the spring member 79. Can be easily unlocked.

(3rd Example) As shown in FIG. 12, it replaces with the lock pin 25 of 1st Example, and uses the volt | bolt 82 as a control part. Through the bolt insertion hole 83 provided on the lower side of the bolt insertion hole 32 at the center of the inner cover member 18 (FIG. 9), the male screw portion 82a or the shaft portion of the bolt 82 is connected to the inner side of the headband portion side rotation portion 15. Are sequentially inserted into the hole portion 22 of the wall portion 12 and the hole portion 23 of the arm portion side rotating portion 8, and screwed into the hole portion 22a of the wall portion 13 outside the headband portion rotating portion 15. The hole 22 a is formed with a smaller diameter than the other holes 22 and 23. A female screw portion may be formed in advance in the hole 22a. The bolt 82 can be easily attached and detached without removing the inner cover member 18 and the outer cover member 19.

(4th Example) As shown in FIG. 13a, without using the lock pin 25 etc. of 1st Example as a control part, for example, the upper part 4c (FIG. 8) of the arm part 4, or the lower part 6a of the headband part 6 In addition, a rectangular cylindrical slide member 84 is mounted so as to be slidable in the vertical direction. Front and rear surfaces 6c (FIG. 8) of the lower portion 6a of the headband portion 6 and front and rear surfaces 4d (FIG. 8) of the upper portion 4c of the arm portion 4 are simultaneously covered (contact with the front and rear surfaces 4d and 6c). The slide member 84 has a pair of wall portions 84a. Since the arm portion 4 can be extended and contracted and the protruding length upward from the sound emitting portion 2 (FIG. 8) varies, the slide member 84 is preferably attached to the headband portion 6.

The slide member 84 is slid and moved in the direction of the arrow toward the headband portion side rotating portion 15 and the arm portion side rotating portion 8, and the pair of front and rear wall portions 84 a of the slide member 84 are moved to the lower portion 6 a of the headband portion 6 and the arm. By contacting the front and rear surfaces 4d and 6c with the upper portion 4c of the portion 4, the rotation of both the rotating portions 8 and 15 is blocked (locked). Since the slide member 84 does not come off the arm portion 4 or the headband portion 6, there is no fear that the user will lose it. When unlocking the rotating parts 8 and 15, the slide member 84 is preferably moved along the headband part 6 and used as a part of the headband part 6.

(5th Example) As shown in FIG.13 (b), as a control part, before and after the wall part 84b of either the right or left (inside and outside) of the rectangular cylindrical slide member 84 of 4th Example of Fig.13 (a) An upper slit 4c in the longitudinal direction is provided at the center of the direction, the cross section is incompletely annular, and is slightly narrower in the front-rear direction than the slide member 84. A fitting member 84 </ b> A that is slidably fitted to the lower portion 6 a of the portion 6 is used. The fitting member 84 </ b> A has a length that simultaneously covers the front and rear surfaces 4 d of the upper portion 4 c of the arm portion 4 and the front and rear surfaces 6 c of the lower portion 6 a of the headband portion 6.

The fitting member 84A is bent and opened back and forth as indicated by the arrow from the slit 84c, and fitted onto the headband side rotating portion 15 and the arm portion side rotating portion 8 of FIG. The front and rear wall portions 84a of the member 84A simultaneously contact the front and rear surfaces 4d and 6c of the upper portion 4c of the arm portion 4 and the lower portion 6a of the headband portion 6 to block the rotation of the rotating portions 8 and 15. When unlocking both rotating parts 8 and 15, the fitting member 84 </ b> A is bent back and forth from the slit 84 c and opened to escape from the rotating parts 8 and 15. It is also possible to set the front-rear direction width of the fitting member 84A to be approximately the same as that of the slide member 85 and slide it on the headband portion 6 as a slide member.

(Sixth Embodiment) The headphone device 1 of the first embodiment is of a type in which the headband unit 6 is hung downward from the top (top) of the user's head toward the ear. The example relates to a headphone device of a type (ear-hook type) in which the headband unit 6 is hung from the rear part of the user's head toward the ear in a substantially horizontal direction (see, for example, the headphone device of Patent Document 1). ).

For example, like the sound emitting unit 2 shown on the left side of FIG. 8, the headband unit side is rotated and moved in a direction substantially orthogonal to the headband unit 6 (at an angle of 90 ° or the vicinity thereof). The lock pins 25 are inserted into the holes 22 and 23 of the rotating unit 15 and the arm unit side rotating unit 8 to lock the rotating units 8 and 15.

In FIG. 9, in the first embodiment, holes 22 and 23 for inserting lock pins are provided at the lower positions of the headband-side rotating portion 15 and the arm-portion-side rotating portion 8, but in the sixth embodiment, In addition, holes 22 and 23 for inserting lock pins are provided at the front side positions and / or the rear side positions of the headband side rotary part 15 and the arm part side rotary part 8.

(Seventh Embodiment) As the control unit in the sixth embodiment, for example, the bolt 82 in the third embodiment can be used instead of the lock pin 25. Further, as shown in FIG. 14, a fitting member 85 formed by bending the fitting member 84A in the fifth embodiment into a substantially L shape can be used as the control unit in the sixth embodiment. The fitting member 85 has a substantially L-shaped wide width provided on the upper and lower wall portions 85a and 85b, the front and rear wall portions 85c and 85d, the left and right (inside / outside) wall portions 85e, and the left and right wall portions 85e. The slit 85f. The upper and lower wall portions 85 a and 85 b of the fitting member 85 are in contact with the upper and lower surfaces 6 c of the root side portion 6 a of the headband portion 6, and at the same time, the front and rear wall portions 85 c and 85 d of the fitting member 85 are the arm portion 4. By contacting the front and rear surfaces 4d of the upper portion 4c, the rotation of the arm portion side rotating portion 8 and the headband portion side rotating portion 15 is prevented.

(Eighth Example) As shown in FIG. 15, the arm part 4 in the first example is provided integrally and non-slidable on the case 3 of the sound emitting part 2 (integrated resin molding). The arm part 4 integrated with the sound emitting part 2 is connected to the headband part 6 by a rotating mechanism 5 so as to be freely rotatable. The hole 3d for penetrating the arm portion of the case 3 in FIG. 8 and the arm portion (portion 4a) protruding from the lower portion of the case 3 are eliminated. The control units of the first to seventh embodiments can be applied to the arm section 4 of the eighth embodiment (the first embodiment is applied in FIG. 15).

(Ninth Embodiment) In the first embodiment, the headband portion side rotating portion 15 has a pair of left and right (inside and outside) wall portions 12, 13, and the arm side rotating portion 8 is the headband portion side rotating portion. 15 is composed of a single wall portion inserted between a pair of wall portions 12 and 13, but in the ninth embodiment, as shown in FIG. ) It has a pair of wall portions 86 and 87, and the headband portion side rotating portion 15 is constituted by a single wall portion inserted between the pair of wall portions 86 and 87 of the arm portion side rotating portion 8. .

The pair of wall portions 86 and 87 of the arm portion side rotating portion 8 and the headband portion rotating portion 15 are provided with holes 22 and 23 for inserting lock pins. Holes 20 and 21 for inserting the shaft portion 29 of the outer cover member 19 are provided at the center of the pair of wall portions 86 and 87 of the arm portion side rotating portion 8 and the headband portion side rotating portion 15. The lock pin insertion holes 22 and 23 are provided at positions closer to the root 15 a of the headband side rotation unit 15 than the shaft insertion holes 20 and 21.

DESCRIPTION OF SYMBOLS 1 Headphone apparatus 2 Sound emission part 3 Case 4 Arm part 5 Rotating mechanism 6 Headband part 7 Ear pad 8 Arm part side rotating part 8b Root 15 Headband part side rotating part 18 Inner cover member (cover member)
19 Outer cover member (cover member)
20, 21 hole 22 hole (first hole)
23 hole (second hole)
24 Sound emission side connector 25 Lock pin 26 Control part 29 Shaft part 30 Hole part 31 Bolt (fixing member)
43 Cable portion 44, 45 Cable 46 Cable side connector 48 Speaker device 49 Diaphragm 50 Wall portion 56 Groove portion 57 Block portion 59 Recess 64 Cushion member

Claims (18)

1. A sound emitting unit containing a speaker device having a diaphragm;
   A cable portion for conducting an electrical signal to the speaker device,
   The cable part detachable from the sound emitting part is inserted into the sound emitting part from the lower side of the sound emitting part, and the diameter of the cable in the sound emitting direction of the diaphragm is larger than that of the diaphragm in the sound emitting part. A headphone device that is arranged on the outer side in the direction and is projected from the upper side of the sound emitting unit to the outside of the sound emitting unit.
2. A sound emitting part side connector provided on the upper side of the sound emitting part and electrically connected to the speaker device;
   A cable-side connector that is provided at an end of the cable part that is exposed to the outside of the sound emitting part from an upper side of the sound emitting part, and is connected to the sound emitting part side connector; The headphone device according to claim 1.
3. An arm portion for connecting the sound emitting portion to a headband portion;
   The sound emitting part side connector and the cable side connector connected to the sound emitting part side connector are arranged on the inner side than the arm part with respect to a user when the sound emitting part is attached to an ear. The headphone device according to claim 2, wherein the headphone device is provided.
4. 4. The headphone device according to claim 3, wherein the sound emitting unit side connector and the cable side connector connected to the sound emitting unit side connector are arranged on the rear side of the arm unit.
5. The cable portion that is exposed to the outside of the sound emitting portion from the upper side of the sound emitting portion is disposed inside the arm portion with respect to a user when the sound emitting portion is attached to an ear. The headphone device according to claim 1.
6. The headphone device according to claim 1, wherein a groove portion through which the cable portion is passed is provided in the sound emitting portion.
7. The cable portion includes a plurality of cables, the plurality of cables are arranged in the groove portion along the depth direction of the groove portion, and one cable of the plurality of cables is connected to the speaker device in the groove portion. The headphone device according to claim 6, wherein the headphone device is disposed on a near side, and another cable among the plurality of cables is disposed on a side farther from the speaker device in the groove portion.
8. The headphone device according to claim 6, wherein the groove is covered with a cushion member.
9. The headphone device according to claim 6, wherein the cable portion includes a block portion, and the block portion is fixed to a concave portion following the groove portion in the sound emitting portion by screwing.
10. The sound emitting portion includes a case and an ear pad, the ear pad is detachable from the case, and the groove portion is provided in a wall portion exposed to the case side when the ear pad is detached. The headphone device according to claim 6.
11. An arm for connecting the sound emission part and the headband part;
    A rotation mechanism for rotating the arm portion in the radial direction of the sound emitting portion with respect to the headband portion;
    A headphone device comprising: a control unit that is provided in the rotation mechanism and stops the rotational movement of the arm unit.
12. 12. The headphone device according to claim 11, wherein the sound emitting unit and the arm unit are arranged in a pair on each of the left and right sides, and the rotation mechanism and the control unit are arranged in a pair on the left and right sides.
13. The rotation mechanism includes: a headband unit side rotation unit provided in the headband unit; an arm unit side rotation unit provided in the arm unit; the headband unit side rotation unit; and the arm unit side rotation unit. And a shaft portion for rotation arranged in common,
    12. The arm portion is rotated with respect to the headband portion by rotating the arm portion side rotating portion around the shaft portion with respect to the headband portion side rotating portion. The headphone device described.
14. The headband portion side rotating portion and the arm portion side rotating portion are provided with a hole portion for inserting the shaft portion, and a hole portion for inserting a fixing member into the shaft portion. The headphone device according to claim 13.
15. The control unit includes a first hole provided in the headband-side rotation unit, a second hole provided in the arm-side rotation unit, the first hole, and the second hole. The headphone device according to claim 13, comprising: a lock pin inserted into the hole portion.
16. The headphone device according to claim 15, wherein the first hole portion and the second hole portion are arranged closer to the root of the arm portion side rotating portion than the shaft portion.
17. The headphone device according to claim 11, wherein the rotating mechanism includes a cover member that covers the control unit.
18. The headphone device according to claim 17, further comprising a fixing member for attaching the cover member to the rotation mechanism.

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