JP2009055645A - Headphone with cord winder device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a headphone with a cord winder device, capable of winding up a bridging cord bridged between one (left) headphone assembly and the other (right) headphone assembly. <P>SOLUTION: This headphone with the cord winder device 10 is equipped with one (left) headphone assembly 11L accommodating, in one (left) headphone housing 12L corresponding to one of the right and left ears, a small speaker 20 and the cord winder device 30 for winding up an input cord 41 for connecting audio video equipment, and the other (right) headphone assembly 11R accommodating, in the other (right) head phone housing 12R corresponding to the other of the right and left ears, the speaker 20 and the cord winder device 30 for winding up the bridging cord bridged from one headphone housing 12K to the other headphone housing 12R. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention includes a pair of small speakers for converting left and right (LR) audio signals output from an AV (Audio Video) device into audio, an input cord connected to the AV device, and a pair of left and right headphone housings. The present invention relates to a headphone with a cord winding device including a pair of left and right headphone assemblies that house a pair of cord winding devices that wind up a bridging cord spanned between a pair of left and right headphone housings.

  In general, headphones use left and right (LR) audio output from AV (Audio Video) devices such as portable MD (Mini Disc) players, portable CD (Compact Disc) players, and portable liquid crystal televisions. A signal is input to one of the pair of left and right headphone housings via an input cord, and is input from one headphone housing to the other headphone housing via a cord, and these left and right (LR) audio signals are input to the pair of left and right headphone housings. A pair of headphone assemblies is configured to convert sound to the left and right ears by a pair of small speakers housed in a headphone housing. Among these types of headphones, ears that do not use a headband Recently, hanging-type headphones are frequently used.

As an example of the earphone, the input cord connected to the AV device is wound around a cord winding device housed in one headphone housing, and an input plug attached to the tip of the input cord is Headphones with a cord winding device that can be housed in a headphone housing have been developed. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 2002-10385 (page 5-7, FIG. 1, FIG. 2, FIG. 8).

  FIG. 16 is a diagram for explaining a state in which a conventional headphone with a cord winding device is attached to the left and right ears of a human, and FIG. 17 is a diagram of a conventional headphone with a cord winding device in which an input cord is used as one headphone housing. FIG. 18 is a diagram showing a state where the cord is pulled out from the inside, and FIG. 18 is a diagram showing a state in which the input cord is wound in one headphone housing when the cord is not used in a conventional headphone with a cord winding device.

  The conventional cord winding device 100 shown in FIGS. 16 to 18 is disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2002-10385) described above. Explained.

  First, as shown in FIG. 16, in a conventional headphone 100 with a cord winder, a pair of left and right headphone assemblies 101L and 101R are configured substantially symmetrically corresponding to the left and right ears of a human.

  That is, the pair of left and right headphone assemblies 101L and 101R accommodates a pair of small speakers (not shown) symmetrically in a pair of left and right headphone housings 102L and 102R forming an outer shape, and the left headphone. A cord winding device (not shown) is accommodated only in the housing 102L, and a pair of left and right ear hooks 103L and 103R are attached to the outside of the pair of left and right headphone housings 102L and 102R symmetrically. .

  When using the conventional headphones 100 with the cord winding device, the pair of left and right headphone assemblies 101L and 101R are attached to the left and right ears by the pair of left and right ear hooks 103L and 103R.

  Here, in the headphone assembly 101L attached to the left ear, an input cord 105 for connecting AV equipment with an input plug 104 attached to the tip for connection with the AV equipment is housed in the left headphone housing 102L. A cord winder (not shown) is provided so as to be able to wind, and by inserting the input plug 104 into the AV device, left and right (LR) audio signals output from the AV device are passed through the input cord 105. The headphone assembly 101L on the left side can be taken in. Of the left and right audio signals input into the left headphone assembly 101L, the left audio signal is output to the left ear from a small speaker (not shown) housed in the left headphone housing 102L. .

  On the other hand, a transition cord 106 is connected from the left headphone assembly 101L to the right headphone assembly 101R, and the right audio signal is stored in the right headphone housing 102R via the transition cord 106. (Not shown) is output to the right ear side. At this time, a slider 107 is slidably held on the transition cord 106 so as to adjust the length of the cord 107 in a U-shape.

  Therefore, when using the conventional headphone 100 with the cord winding device, as shown in FIG. 17, the input cord 105 provided on the left headphone assembly 101L side is pulled out from the left headphone housing 102L and this input is performed. An input plug 104 attached to the tip of the cord 105 is inserted into the AV device.

  Next, when the headphone 100 with the cord winding device is not used, as shown in FIG. 18, on the left headphone assembly 101L side, the tip of the input plug 104 attached to the tip of the input cord 105 is on the left side. The input cord 105 is wound around a cord winding device (not shown) housed in the left headphone housing 102L by being housed in the hole of the protruding portion 102La formed integrally with the headphone housing 102L. .

  On the other hand, on the right headphone assembly 101 </ b> R side, the transition cord 106 is exposed while being bundled in a U shape by the slider 107.

  By the way, in the headphone 100 with the conventional cord winder described above, a small speaker (not shown) for outputting the left sound and the input cord 105 for connecting AV equipment are wound in the left headphone housing 102L. A cord winder (not shown) is accommodated, and only a small speaker (not shown) for outputting right sound is accommodated in the right headphone housing 102R.

  With the above structure, when the headphone 100 with the conventional cord winding device is not used, the input cord 105 is wound up in the left headphone housing 102L as shown in FIG. Since it remains exposed between the headphone housing 102L and the right headphone housing 102R, the storage cord 106 cannot be accommodated and is troublesome, and the appearance is poor. is there.

  Furthermore, with the above structure, the inside of the right headphone housing 102R is hollow to the extent that there is no cord winding device as compared with the inside of the left headphone housing 102L. When using the headphones 100 with the pick-up device, a part of each sound output from the pair of small speakers is echoed unbalanced inside the pair of left and right headphone housings 102L, 102R. This is a problem because the left and right audio signals cannot be converted into audio in a balanced manner.

  Accordingly, the input cord for connecting the AV device may be wound up in one headphone housing, and the transition cord spanned between one headphone housing and the other headphone housing may be wound up in the other headphone housing. In addition, by storing the small speakers and the cord winding device in the left and right headphone housings respectively, the inside of the left and right headphone housings becomes the same acoustic environment, and the cord that can obtain the right and left sound quality characteristics in a well-balanced manner A headphone with a winding device is desired.

The present invention has been made in view of the above problems, and the first invention includes a headphone housing in which a speaker is housed,
An input cord having one end connected to the inside of the headphone housing and having a plug at the other end;
Cord winding means that is housed in the headphone housing and winds up the input cord by a spring force;
Winding lock means for regulating the winding of the cord winding means;
Unlocking means for releasing the regulation by the winding lock means,
The plug has a plug molding part, an electrical connection part protruding from the plug molding part and serving as a tip part of the plug, and a convex part formed protruding from the plug molding part shorter than the electrical connection part,
The headphone housing has a hole in which any of the electrical connection portion and the convex portion can be inserted,
The unlocking means has a lock lever biased to enter the inside of the hole, while the lock lever is inserted regardless of which of the electrical connecting portion and the convex portion is inserted into the hole. The restriction by the winding lock means is released at a position where it is pushed in the direction of retreating from the hole by the made electrical connection portion or the convex portion and is in contact with the side surface of the electrical connection portion or the side surface of the convex portion. A headphone with a cord winding device, characterized in that it is configured.

Moreover, 2nd invention is a headphone with a cord winding apparatus of 1st invention mentioned above,
A headphone with a cord winding device, wherein the electrical connection portion and the convex portion have the same diameter.

The third invention is a headphone with a cord winding device according to the first or second invention described above,
Other headphone housings that house other speakers inside,
A crossover cord having one end connected to the inside of the other headphone housing and the other end connected to the headphone housing;
Other cord winding means that is housed inside the other headphone housing and winds the crossing cord by a spring force;
Other winding lock means for regulating the winding of the cord of the other cord winding means;
Other unlocking means for releasing the restriction by the other winding lock means;
A headphone with a cord winding device, comprising:

Moreover, 4th invention is a headphone with a cord winding apparatus of 3rd invention mentioned above, Comprising:
The headphone housing has other convex portions projecting outward on its outer surface,
The other headphone housing has a hole into which the other convex portion can be inserted,
The other lock releasing means has another lock lever biased to enter the inside of the hole, and when the other convex portion is inserted into the hole, the other lock lever is The other convex portion inserted into the hole is pushed in the direction of retreating from the hole and is configured to release the restriction by the other winding lock means at a position in contact with the side surface of the other convex portion. This is a headphone with a cord winding device.

Furthermore, the fifth invention is a headphone housing that houses a speaker inside and has a protruding portion that protrudes outward from the outer peripheral surface;
A large-diameter hole and a small-diameter hole that are continuously provided in the projecting portion so as to penetrate the projecting portion;
An ear hook supported at one end in the large-diameter hole; an input cord having one end connected to the inside of the headphone housing and having a plug that can be inserted into the small-diameter hole at the other end;
Cord winding means that is housed in the headphone housing and winds up the input cord by a spring force;
Winding lock means for regulating the winding of the cord winding means;
Unlocking means for releasing the regulation by the winding lock means,
The ear hook has a bottomed hole formed on the end surface on the one end side so as to face the small diameter hole in the protrusion.
The restriction of the winding lock means is released by the lock releasing means by inserting the plug into the small diameter hole, and the tip of the plug is configured to reach the bottomed hole. This is a headphone with a cord winder.

  According to the headphone with the cord winding device of the first invention, the input cord is wound around the cord winding means stored in the headphone housing when the headphone with the cord winding device is not used. The storage process is performed well, and the appearance is also excellent. Furthermore, when the restriction by the winding lock means for restricting the winding of the cord winding means is released by the lock releasing means, the lock lever of the lock releasing means is placed in either the electric connection portion or the convex portion in the hole of the headphone housing. Is inserted in the direction of withdrawal from the hole by the inserted electrical connection portion or convex portion, and the restriction by the winding lock means is released at a position in contact with the side surface of the electrical connection portion or the side surface of the convex portion. Therefore, the restriction by the winding lock means can be reliably released after either the electrical connection portion or the convex portion is held in the hole of the headphone housing by the lock lever.

  Further, according to the headphone with the cord winding device of the second invention described above, in addition to obtaining the effect of the first invention, since the diameters of the electrical connection portion and the convex portion are the same, the hole of the headphone housing is formed. The projection can be made compact as a minimum.

  Further, according to the headphone with cord winding device of the third invention described above, the effects of the first or second invention can be obtained, and when the headphone with cord winding device is not used, the transition cord is not used. Since the cord is wound around another cord winding means stored in the headphone housing, the transition cord can be stored well and the appearance can be improved.

  Moreover, according to the headphone with the cord winding device of the fourth invention described above, in addition to obtaining the effect of the third invention, the cord winding means and the like are assembled in the headphone housing when winding the transition cord. Unless the pair of left and right headphone assemblies are removed from the left and right ears of the user, the other protrusions of the headphone housing cannot be inserted into the holes of the other headphone housing, and the crossover cord cannot be wound around the headphone assembly. Safe for headphones with cord winder, as there is no risk of the cord hanging on the user's neck or the headphone assembly coming off the ear due to the winding power of the cord It is possible to improve the performance and usability.

  Furthermore, according to the headphone with the cord winding device of the fifth invention described above, the large-diameter hole and the small-diameter hole are continuously provided so as to penetrate into the protruding portion protruding outward from the outer peripheral surface of the headphone housing. When the one end side of the ear hook is supported by the large diameter hole among the hole and the small diameter hole, and the small diameter hole is formed so that the plug can be inserted, the ear hook is connected to the small diameter hole within the projecting portion on the end surface of the one end side. It has bottomed holes formed so as to face each other, and the restriction of the winding lock means is released by the lock releasing means by inserting the plug into the small diameter hole, and the tip of the plug reaches the bottomed hole. Therefore, the plug can release the regulation of the winding lock means via the lock releasing means, and the plug can be accommodated in the small diameter hole and the bottomed hole, and the large diameter hole in which the ear hook is supported. And plug tip A bottomed hole which is that it is possible to downsize the projection of the headphone housing to partially overlap.

  Hereinafter, an embodiment of a headphone with a cord winder according to the present invention will be described in detail with reference to FIGS.

  In the headphone with a cord winding device according to the present invention, a small speaker and a cord winding device that winds up an input cord for AV device connection in one headphone housing corresponding to one of the left and right ears. Wrap a small speaker and a crossover cord that spans from one headphone housing to the other headphone housing in one headphone assembly that houses the headphones and the other headphone housing that corresponds to the other of the left and right ears. And the other headphone assembly that houses the cord winding device to be taken, and in the first and second embodiments described below, one ear side corresponds to the left ear side, and The other ear corresponds to the right ear side, but it is also possible to invert the left and right in correspondence to the above.

  In Examples 1 and 2 described below, the technical idea of the headphone with a cord winding device according to the present invention is that a pair of left and right headphones are formed outside a pair of headphone housings that form the outer shape of the pair of left and right headphone assemblies. The case where the present invention is applied to an ear-hook method that can be used with the ear-hook attached will be described, but the present invention is not limited to this, but a pair of left and right headphone assemblies are combined with a headband. It can also be applied to the headband system that can be used in

  FIG. 1 is a cross-sectional view showing a headphone with a cord winding device according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view showing a pair of left and right headphone housings shown in FIG. 3 is an exploded perspective view showing the cord winding device shown in FIG. 1 in an exploded manner, and FIG. 4 is a plan view showing the left headphone assembly in the head with the cord winding device according to the first embodiment of the present invention. FIG. 5 is a plan view showing the right headphone assembly in the head with the cord winding device according to the first embodiment of the present invention. FIG. 6 is a headphone with the cord winding device according to the first embodiment of the present invention. FIG. 7 shows a state in which the input cord and the transition cord are pulled out from the pair of left and right headphone housings in use, and FIG. 7 shows a pair of left and right via the input cord and the transition cord from the input plug. FIG. 8 is a diagram for explaining a state in which the speaker is connected to a small speaker. FIG. 8 is a diagram showing a headphone with a cord winder according to Embodiment 1 of the present invention. FIG. 9 is a diagram showing the first state taken, and FIG. 9 shows a headphone with a cord winder according to the first embodiment of the present invention. It is the figure which showed 2 states.

  As shown in FIG. 1, in the headphone 10 with the cord winding device according to the first embodiment of the present invention, the pair of left and right headphone assemblies 11L and 11R are configured substantially symmetrically corresponding to the left and right human ears. Yes.

  That is, the pair of left and right headphone assemblies 11L and 11R has an input plug 40 that inputs left and right (LR) audio signals output from an AV (Audio Video) device into a pair of left and right headphone housings 12L and 12R forming an outer shape. A pair of small speakers 20 and 20 that respectively convert sound into sound via an input cord 41 attached to the tip, and a transition cord 42 that spans between the input cord 41 and the pair of left and right headphone housings 12L and 12R. A pair of cord winding devices 30 and 30 are respectively housed, and one end of a pair of left and right ear hooks 45L and 45R is attached to the outside of the pair of left and right headphone housings 12L and 12R. .

  At this time, the pair of left and right headphone housings 12L and 12R are formed by combining the first to fifth frame bodies 13 to 17, and the first to fifth frame bodies 13 to 17 will be described in detail later. To do.

  The length of the input cord 41 is set to about 1000 mm, while the length of the transition cord 42 is set to about 550 mm.

  In addition, the pair of left and right ear hooks 45L and 45R is formed by fitting a pair of left and right ear hook pads 46L and 46R formed of a flexible resin material at the other end opposite to the one end in a symmetrical manner. The touch performance to the left and right ears is improved.

  Here, as shown in an exploded view in FIG. 2, the pair of left and right headphone housings 12L and 12R is a combination of a total of five first to fifth frame members 13 to 17 formed using an insulating resin material. The left and right sides are both framed, and both 12L and 12R are formed to be sharable.

  Among the first to fifth frame bodies 13 to 17 described above, the first and second frame bodies 13 and 14 are inner frame bodies provided on the ear side to accommodate the small speaker 20 (FIG. 1). And the 3rd-5th frame 15-17 becomes an outer frame provided apart from the ear | edge side in order to accommodate the cord winding apparatus 30 (FIG. 1), an inner frame (13, 14) and an outer side The left headphone housing 12L and the right headphone housing 12R are framed by abutting and integrally connecting the frames (15 to 17) in an acoustically separated state.

  More specifically, the first to fifth frame bodies 13 to 17 will be described in order. First, the first frame body 13 is formed in a cup shape, and the surface 13a is converted by a small speaker 20 (FIG. 1). A plurality of round holes 13a1 are formed to output the sound to the ear side, and the surface 13a is covered with a flexible ear pad (not shown) so as to come into contact with the ear. Further, on the back surface 13b side of the first frame body 13, locking claws 13b1 are formed to project downward at portions approximately divided into three along the circumference, and these three locking claws 13b1 are This is for coupling with the second frame 14 described below.

  Next, the second frame body 14 is formed in a ring shape, and six stay portions 14c provided by dividing the space between the inner ring portion 14a and the outer ring portion 14b into approximately six equal parts along the circumference. The small speaker 20 (FIG. 1) can be accommodated between the upper surface side and the first frame body 13 by connecting with each other. In addition, six air vent holes 14d are formed through the inner ring portion 14a and the outer ring portion 14b of the second frame 14 and between the six stay portions 14c. The air on the back side of the small speaker 20 (FIG. 1) can be extracted to the outside by the six air vent holes 14d.

  Further, a locking claw 14a1 is formed in a lower portion of the inner peripheral ring portion 14a of the second frame body 14 so as to protrude downward at a portion roughly divided into three along the circumference. The pawl 14a1 is for coupling with a third frame 15 described below. Further, the outer ring portion 14b of the second frame body 14 is formed with a notch 14b1 in a concave shape at a portion roughly divided into three along the circumference, and the first notch 14b1 is formed in the three notches 14b1. Three locking claws 13b1 formed on the frame 13 can be detachably engaged.

  And after accommodating the small speaker 20 (FIG. 1) between the 1st frame 13 and the 2nd frame 14, three latching claws 13b1 and 2nd frame 14 which were formed in the 1st frame 13 are used. The first and second frame bodies 13 and 14 are coupled by engagement with the three cutout portions 14b1 formed in the above, thereby forming a frame as an inner side frame body on the ear side.

  Next, the third frame 15 has a ring-shaped outer peripheral surface 15b formed in a substantially cylindrical shape with a height increasing downward along the disk portion 15a, and the ring-shaped outer peripheral surface 15b A shaft portion 15c is integrally formed so as to protrude downward at the center of the back surface of the disk portion 15a. The cord winding device 30 (FIG. 1) can be housed around the shaft portion 15c in an internal space formed between the ring-shaped outer peripheral surface 15b of the third frame 15 and the shaft portion 15c. .

  Furthermore, a wire hole 15a1 is formed through the disk portion 15a of the third frame 15 in the vicinity of the shaft portion 15c. As will be described later, the wire hole 15a1 is hermetically sealed with a wiring board 31 (FIGS. 1 and 3) attached to the inner surface of the disk portion 15a from the inside of the third frame 15 and is soldered to the wiring board 31. It is formed to pass the attached wire 32 (FIGS. 1 and 3).

  Further, a protruding portion 15d is integrally formed in an arm shape from a part of the outer side of the ring-shaped outer peripheral surface 15b of the third frame 15, and a stepped hole 15d1 is formed in the protruding portion 15d as a large-diameter hole. The small diameter hole is concentrically connected and penetrated.

  In the large diameter hole of the stepped hole 15d1, one end of the left ear hook 45L (FIG. 1) or one end of the right ear hook 45R (FIG. 1) is supported, and the small diameter hole of the step hole 15d1 As will be described later, the plug sleeve 40a (FIGS. 4 and 8) of the input plug 40 provided on the left headphone assembly 11L side or the convex portion 40d (FIGS. 4 and 9) of the input plug 40 is inserted. A cam pin 55 (FIG. 5) provided on the right headphone assembly 11R side can be removably fitted, as will be described later.

  A ring portion 15e is formed on the inner peripheral side of the disc portion 15a of the third frame 15 so as to protrude slightly smaller than the inner diameter of the inner peripheral ring portion 14a of the second frame 14, and the disc portion. A locking hole 15a2 is drilled through a portion of the ring portion 15e divided into approximately three equal parts along the outer periphery of the ring portion 15e.

  When the inner frame is formed by the first and second frames 13 and 14, the inner ring portion 14a of the second frame 14 is positioned and fitted to the ring portion 15e of the third frame 15, In addition, the three locking claws 14a1 formed in the second frame 14 are engaged with the three locking holes 15a2 drilled in the third frame 15, so that the inner frame (13, 14) described above is engaged. ) Can be coupled to the third frame 15.

  Further, on the disk portion 15a of the third frame body 15, a relief hole 15a3 is penetrated and drilled in a portion equally divided into three along the outermost circumference, and the ring-shaped outer circumferential surface 15b is formed through these three relief holes 15a3. Three locking claws 15f are formed on the inner wall, and these three locking claws 15f are for coupling to a fifth frame 17 described later.

  Next, the fourth frame 16 is formed with a ring-shaped outer peripheral portion 16b having a reduced height along the disc portion 16a, and the inside of the third frame 15 at the center on the disc portion 16a. A small-diameter ring portion 16c formed with a bottomed hole 16c1 into which the tip of the shaft portion 15c formed can enter is formed with a reduced height. Further, the outer surface 16a1 of the disk portion 16a of the fourth frame body 16 is subjected to a process that is attractive in appearance by metal plating, color printing, or the like. The fourth frame body 16 is inserted into the cup-shaped fifth frame body 17 described below, and then penetrated into the cup portion 17a of the fifth frame body 17 so as to penetrate the large-diameter hole 17a1. To be integrated.

  Next, the fifth frame 17 has a large-diameter hole 17a1 penetrating through the apex side of the cup portion 17a formed in a cup shape, and the ring portion 17b is formed on the peripheral surface of the cup portion 17a. It is formed so as to protrude upward slightly smaller than the maximum diameter of 17a. Further, a notch 17b1 for escape is formed at a position corresponding to the protruding portion 15d of the third frame 15 at the ring portion 17b of the fifth frame 17, and at a position away from the notch 17b1. A notch 17b2 for inserting a cord is formed. In addition, locking holes 17b3 are formed at approximately three equal portions along the peripheral surface of the ring portion 17b of the fifth frame body 17, and the three locking holes 17b3 are formed in the third frame body 15. Three locking claws 15f formed on the wall surface are engaged. Furthermore, a locking claw 17a2 is formed at a portion of the inner wall surface of the cup portion 17a of the fifth frame 17 that is divided into approximately three equal parts along the peripheral surface. The ring-shaped outer peripheral portion 16b of the fourth frame body 16 inserted in can be clamped.

  And the 4th frame 16 is latched in the 5th frame 17, and the cord winding apparatus 30 (FIG. 1) between the 3rd frame 15 and the 4th, 5th frames 16, 17 is carried out. 3, the third to fifth frame bodies 15 are engaged by engagement of the three locking claws 15 f formed in the third frame body 15 with the three locking holes 17 b 3 formed in the fifth frame body 17. -17 are combined and framed as an outer frame away from the ear side.

  Further, as described above, the engagement between the three locking claws 14a1 formed in the second frame 14 and the three locking holes 15a2 formed in the third frame 15 results in the inner frame (13, 14). ) And the outer frame (15 to 17) are abutted and joined together in an acoustically separated state, and finally the left headphone housing 12L (left headphone assembly 11L) and the right headphone are combined. The housing 12R (the right headphone assembly 11R) is formed.

  Here, when the above state is shown in cross section in FIG. 1, in the pair of left and right headphone assemblies 11 </ b> L and 11 </ b> R, the pair of left and right headphone housings 12 </ b> L and 12 </ b> R are respectively configured by the first frame body 13 to the fifth frame body 17. The small speaker 20 is accommodated between the first frame 13 and the second frame 14, and the cord is wound between the third frame 15 and the fourth and fifth frames 16, 17. The device 30 is accommodated.

  Accordingly, in the pair of left and right headphone assemblies 11L and 11R, the inner frame (13, 14) and the outer frame (15 to 17) are both in the same structure form on the left and right, so the acoustic conditions for each small speaker 20 are left and right. This makes it possible to obtain a balanced sound quality characteristic on the left and right.

  Further, the outer frame (15-17) side is placed on the disk portion 15a of the third housing 15 and the inner surface of the disk portion 15a so that the air on the inner frame (13, 14) side does not enter. The inside of the inner frame bodies (13, 14) and the inside of the outer frame bodies (15-17) are acoustically separated from each other by the attached wiring board 31. 13 and 14), since the air is extracted to the outside from the six air vent holes 14d formed in the second housing 14 on the back side of the small speaker 20 housed in the inside of the inner frame body (13, 14). Sound is not generated, and sound with good sound quality can be output from the small speaker 20.

  In the first embodiment, the case where the left and right headphone housings 12L and 12R are configured by the first frame body 13 to the fifth frame body 17 has been described. However, the inner frame body for storing the small speaker 20 and the cord winding device are described. Any structure may be used as long as it can be acoustically separated from the outer frame housing 30, and the number of frames may be appropriately framed by a quantity that can be assembled.

  Next, the cord winding device 30 housed between the third frame 15 and the fourth and fifth frames 16 and 17 is used in combination with the previously described FIGS. 1 and 2 and the new FIG. explain.

  As shown in an exploded view in FIG. 3, the above-described cord winding device 30 is directed from the third frame 15 side described above with reference to FIG. 2 toward the fourth and fifth frame 16, 17 side. The wiring board 31, the take-up reel 33, the spring spring 35, the spring spring pressing plate 36, and the reel pressing plate 37 are centered on a shaft portion 15 c formed inside the ring-shaped outer peripheral surface 15 b of the third frame 15. Are assembled coaxially in the above order.

  First, the wiring board 31 is formed in a disk shape around a center hole 31a that fits into the base of the shaft portion 15c formed in the third frame 15 using an insulating resin material, In addition, the outer diameter of the wiring board 31 is formed to be slightly smaller than the inner diameter of the first circular recess 33e formed in the take-up reel 33 described below. Further, the surface 31b of the wiring board 31 is positioned and attached to the central portion on the inner surface of the disk portion 15a in the ring-shaped outer peripheral surface 15b of the third frame 15 by the shaft portion 15c. One end of the wire 32 is soldered to the other end, and the other end is drawn out toward the small speaker 20 through a wire hole 15a1 formed in the disc portion 15a of the third frame 15. Also, a plurality of ring-shaped conductive patterns (not shown) are formed concentrically with the central hole 31a on the surface 31c which is the back surface with respect to the surface 31b of the wiring board 31 with different diameters. The plurality of ring-shaped conductive patterns are in sliding contact with a plurality of conductive brushes 34 provided in a first circular recess 33e of the take-up reel 33 described below.

  As shown only in FIG. 1, one end of the transition cord 42 is soldered to the surface 31 b of the wiring board 31 on the left headphone assembly 11 </ b> L side, and the other end of the transition cord 42 is the third frame 15. The wire is pulled out toward the take-up reel 33 on the right headphone assembly 11R side through the wire hole 15a1 formed in the disc portion 15a.

  Next, the take-up reel 33 is positioned on the third frame 15 side with a center hole 33a fitted into a shaft portion 15c formed in the third frame 15 using an insulating resin material. The large-diameter reel flange portion 33b, the reel boss portion 33c, and the small-diameter reel flange portion 33d located on the fourth and fifth frame bodies 16, 17 are integrally formed in a “substantially letter-shaped” shape. In the take-up reel 33, the input cord 41 or the transition cord 42 can be taken up on the reel boss portion 33 formed between the large-diameter reel flange portion 33b and the small-diameter reel flange portion 33d.

  Further, in the reel boss portion 33c on the large-diameter reel flange portion 33b side, a first circular recess 33e is formed concentrically with a shallow depth around the center hole 33a. In the first circular recess 33e of the take-up reel 33, a plurality of conductive brushes 34 are attached with different diameters from the inner periphery to the outer periphery using a spring material having conductivity and elasticity. It has been. Further, the input cord 41 or the transition cord 42 is connected to the plurality of conductive brushes 34 through the wire holes 33c1 formed in the reel boss portion 33c, and the plurality of conductive brushes 34 are connected to the wiring board 31 described above. By making sliding contact with a plurality of ring-shaped conductive patterns (not shown) formed on the surface 31c, even when the take-up reel 33 rotates, an audio signal from the input cord 41 or the transition cord 42 is sent to the wiring board 31 side. It can communicate.

  In addition, a reel lock notch 33b1 is formed in a portion substantially equally divided into four along the circumference of the outer periphery of the large diameter reel flange 33b, and these four reel lock notches are provided. The part 33b1 will be described with a pair of left and right reel lock mechanism parts 50L and 50R shown in FIGS.

  Further, in the reel boss portion 33c on the small-diameter reel flange portion 33d side, a second circular concave portion 33f is formed concentrically deep with the center hole 33a as a center. A spring spring 35 and a spring spring pressing plate 36 described below are fitted in the second circular recess 33 f of the take-up reel 33.

  The spring spring 35 described above is a thin plate spring wound in a spiral shape. On the other hand, the spring spring pressing plate 36 described above is formed in a disc shape centering on a central hole 36a fitted to the upper end portion of the shaft portion 15c formed in the third frame 15, and the central hole 36a is formed in the center hole 36a. A cross-shaped groove 36 b is formed in order to obtain a spring property by being sandwiched, and the outer diameter is formed to be slightly smaller than the inner diameter of the second circular recess 33 f of the take-up reel 33.

  Here, when the mainspring spring 35 is fitted in the second circular concave portion 33f of the take-up reel 33, one end of the mainspring spring 35 is fixed to the wall portion in the second circular concave portion 33f, and the other end of the mainspring spring 35 is the first. It is fixed to a slit (not shown) of a shaft portion 15 c formed in the three frame body 15. Further, by installing the pressing plate 36 above the mainspring spring 35, the mainspring spring 35 is prevented from jumping upward, and a slit (not shown) at the upper end of the shaft portion 15c formed in the third frame 15 is provided. ), The take-up reel 33 is prevented from coming out of the shaft portion 15c.

  Then, the take-up reel 33 is rotated by the spring force of the mainspring spring 35, and the input cord 41 or the transition cord 42 is wound around the reel boss portion 33 c of the take-up reel 33 along with this rotation.

  Next, the reel lock mechanisms 50L and 50R for locking the take-up reel 33 provided in the cord take-up device 30 are separated into the left headphone assembly 11L side and the right headphone assembly 11R side, as shown in FIGS. Will be described.

  First, as shown in FIG. 4, in the left headphone assembly 11L, one end side of the left ear hook 45L is supported in the large diameter hole of the stepped hole 15d1 formed in the protruding portion 15d of the third housing 15. The left ear pad 46L is fitted on the other end side opposite to the one end side of the ear hook 45L.

  Further, when the cord winding device 30 is housed on the disc portion 15a in the ring-shaped outer peripheral surface 15b of the third casing 15, it protrudes from a part of the outer side of the ring-shaped outer peripheral surface 15b of the third casing 15. The left reel lock mechanism 50L is provided on the disk portion 15a on the protruding portion 15d side and in the vicinity of the outer peripheral portion of the large-diameter reel flange portion 33b of the take-up reel 33.

  In the left reel lock mechanism 50L described above, the left reel lock lever 51L formed using a sheet metal material is always clockwise by a torsion spring 53L around a shaft 52L planted on the disk portion 15a. It is provided so as to be rotatable while being energized. At this time, the reel lock lever 51L has a locking portion 51La bent upward at one end side, and the reel lock release portion 51Lb uses a pin at one end side and the other end side via the shaft 52L. And planted upward.

  When the reel lock lever 51L is rotated clockwise about the shaft 52L by the urging force of the torsion spring 53L, the engaging portion 51La formed on one end side of the reel lock lever 51L is The take-up reel 33 is engaged by engaging with any one of the four reel-lock notches 33b1 formed in a portion substantially divided into four along the circumference of the outer peripheral portion of the large-diameter reel flange portion 33b. The reel lock release portion 51Lb planted by using a pin on the other end side of the reel lock lever 51L enters the small diameter hole of the stepped hole 15d1 formed in the protruding portion 15d of the third housing 15 while being locked. is doing.

  At this time, if the take-up reel 33 is locked by the reel lock lever 51L, the take-up reel 33 cannot be rotated, so that the input cord 41 cannot be taken up on the take-up reel 33.

On the other hand, when winding up the input cord 41, the user inserts φ3.5m at the tip of the input plug 40.
A plug sleeve 40a formed with a small diameter of m (or a convex portion 40d formed with a small diameter of 3.5 mm on the plug molding portion of the input plug 40) is formed on the protruding portion 15d of the third housing 15. It inserts in the small diameter hole of the attachment hole 15d1. Other than the reel lock lever 51L in which the plug sleeve 40a (or convex portion 40d) has entered the small diameter hole of the stepped hole 15d1 in accordance with the insertion operation of the plug sleeve 40a (or convex portion 40d). Since the reel lock release portion 51Lb on the end side is pushed, the reel lock lever 51L rotates counterclockwise about the shaft 52L against the torsion spring 53L, and thus formed on one end side of the reel lock lever 51L. The engaging portion 51La is separated from the reel lock notch portion 33b1 formed in the large-diameter reel flange portion 33b of the take-up reel 33, and the take-up reel 33 is unlocked. When the lock of the take-up reel 33 is released, the input / output position of the input cord 41 is at the position shown in the figure, so that it is wound by the spring force of the mainspring spring 35 (FIGS. 1 and 3) attached in the take-up reel 33. The take-up reel 33 rotates counterclockwise, and the input cord 41 can be taken up on the take-up reel 33.

  At this time, when the plug sleeve 40a of the input plug 40 is inserted into the small diameter hole of the stepped hole 15d1, the left ear supported by the tip of the plug sleeve 40a in the large diameter hole of the stepped hole 15d1. One end of the hook 45L enters a bottomed hole 45La formed with the same diameter as the small diameter hole of the stepped hole 15d1. On the other hand, when the convex portion 40d of the input plug 40 is inserted into the small diameter hole of the stepped hole 15d1, the length of the convex portion 40d is shorter than the length of the plug sleeve 40a. Does not enter the bottomed hole 45La of the left ear hook 45L.

  When the input cord 41 wound on the take-up reel 33 is pulled out, the plug sleeve 40a of the input plug 40 (or the convex portion 40d of the input plug 40) is inserted into the small diameter hole of the stepped hole 15d1. The input cord 41 may be pulled out so that the take-up reel 33 rotates clockwise while the reel lock lever 51L is twisted and biased clockwise by the spring 53L. At this time, the reel lock notch portion 33b1 formed on the large-diameter reel flange portion 33b of the take-up reel 33 is locked on one end side of the reel lock lever 51L with respect to the clockwise rotation of the take-up reel 33. The portion 51La is cut out so that it can be attached to the outer periphery of the large-diameter reel flange portion 33b without any trouble.

  Next, as shown in FIG. 5, in the right headphone assembly 11R, one end side of the right ear hook 45R is inserted into the large diameter hole of the stepped hole 15d1 formed in the protruding portion 15d of the third housing 15. The right ear pad 46R is fitted on the other end side opposite to the one end side of the ear hook 45R.

  Further, when the cord winding device 30 is housed on the disc portion 15a in the ring-shaped outer peripheral surface 15b of the third casing 15, it protrudes from a part of the outer side of the ring-shaped outer peripheral surface 15b of the third casing 15. The right reel lock mechanism 50R is provided on the disk portion 15a on the protruding portion 15d side and in the vicinity of the outer peripheral portion of the large-diameter reel flange portion 33b of the take-up reel 33.

  In the reel lock mechanism 50R described above, the reel lock lever 51R formed using a sheet metal material is always urged counterclockwise by the torsion spring 53R around the shaft 52R planted on the disc 15a. However, it is provided to be rotatable. At this time, the reel lock lever 51R has a locking portion 51Ra bent upward at one end side, and the reel lock release portion 51Rb uses a pin at one end side and the other end side via the shaft 52R. And planted upward.

  Further, one end side of the right ear hook 45R fitted in the large diameter hole of the stepped hole 15d1 formed in the protruding portion 15d of the third housing 15 has a diameter substantially the same as the small diameter hole of the stepped hole 15d1. A bottom hole 45Ra is formed, and a compression spring 54 is fitted into the bottomed hole 45Ra. Further, the cam pin 55 is fitted into the small diameter hole of the stepped hole 15d1 so as to be able to advance and retract while being prevented from coming off while being pushed by the compression spring 54.

  The cam pin 55 is exposed to the outside at the front end side, and the tapered cam portion 55a and the taper cam portion 55a are connected from the front end side toward the compression spring 54 at a portion fitted in the small diameter hole of the stepped hole 15d1. A trapezoidal concave portion is formed by the connected low flat portion 55b and the pressing wall portion 55c connected to the low flat portion 55b, and the other end side of the reel lock lever 51R is formed in the trapezoidal concave portion (55a to 55c). Since the reel lock release portion 51Rb planted using a pin has entered, the cam pin 55 is prevented from coming out of the stepped hole 15d1 from the small diameter hole by the reel lock release portion 51Rb. Further, a leaf spring portion 55d is formed in the small diameter hole of the stepped hole 15d1 from the pressing wall portion 55c toward the tip side.

  When the reel lock lever 51R is rotated counterclockwise about the shaft 52R by the urging force of the torsion spring 53R, the engaging portion 51Ra formed on one end side of the reel lock lever 51R is the take-up reel 33. The take-up reel 33 is engaged with any one of the four reel-lock notches 33b1 formed in a portion roughly divided into four along the circumference of the outer peripheral portion of the large-diameter reel flange portion 33b. Is locked, and the reel lock release portion 51Rb planted with a pin on the other end side of the reel lock lever 51R is within the small diameter hole of the stepped hole 15d1 formed in the protruding portion 15d of the third housing 15. The cam pin 55 has entered a trapezoidal recess (55a to 55c). In other words, the reel lock release portion 51Rb planted using a pin on the other end side of the reel lock lever 51R enters the vicinity of the taper cam portion 55a formed on the cam pin 55.

  At this time, if the take-up reel 33 is locked by the reel lock lever 51R, the take-up reel 33 cannot be rotated, and therefore the transition cord 42 (FIGS. 1 and 3) cannot be taken up on the take-up reel 33.

  On the other hand, when winding the crossover cord 42 (FIGS. 1 and 3), the user compresses the cam pin 55 fitted in the small diameter hole of the stepped hole 15d1 formed in the protruding portion 15d of the third housing 15. When pushed in the direction of the arrow against the spring 54, the taper cam portion 55a formed on the cam pin 55 pushes the reel lock release portion 51Rb on the other end side of the reel lock lever 51R entering the small diameter hole of the stepped hole 15d1. Therefore, since the reel lock lever 51R rotates clockwise around the shaft 52R against the torsion spring 53R, the locking portion 51Ra formed on one end side of the reel lock lever 51R is large in the take-up reel 33. The reel is cut away from the reel lock notch 33b1 formed in the diameter reel flange portion 33b, and the take-up reel 33 is unlocked. Then, when the take-up reel 33 is unlocked, the entry / exit position of the transition cord 42 is at the position shown in the figure, so that it is wound by the spring force of the spring 35 (FIGS. 1 and 3) attached in the take-up reel 33. The take-up reel 33 rotates in the clockwise direction, and the transition cord 42 (FIGS. 1 and 3) can be taken up on the take-up reel 33.

  When pulling out the transition cord 42 taken up on the take-up reel 33, the cam pin 55 is not pushed into the small diameter hole of the stepped hole 15d1, and the reel lock lever 51R is twisted counterclockwise by the spring 53R. The cross cord 42 may be pulled out so that the take-up reel 33 rotates counterclockwise while being urged. At this time, the reel lock notch 33b1 formed on the large-diameter reel flange portion 33b of the take-up reel 33 is formed on one end side of the reel lock lever 51R with respect to the counterclockwise rotation of the take-up reel 33. The stop portion 51Ra is cut out so as to be able to contact the outer periphery of the large-diameter reel flange portion 33b without hindrance.

  When using the headphone 10 with the cord winding device according to the first embodiment of the present invention configured as described above, as shown in FIG. 6, the pair of left and right headphone assemblies 11L and 11R are connected to the pair of left and right ears. It is attached to the left and right ears with the hooks 45L and 45R.

  Here, the input cord 41 for AV device connection is extended from the left headphone housing 12L, and the input plug 40 attached to the tip of the input cord 41 is inserted into the AV device.

  On the other hand, a bridge cord 42 that extends between the left headphone housing 12L and the right headphone housing 12R is extended from the right headphone housing 12R. As a result, the left and right (LR) audio signals from the AV device are taken into the left headphone assembly 11L, and the left audio signal among the left and right audio signals is stored in the left headphone housing 12L. 20 (FIG. 1) is output to the left ear side, while the right audio signal is output to the right ear side from the small speaker 20 (FIG. 1) housed in the right headphone housing 12R via the cross cord 42. .

  At this time, as shown in FIG. 7, the input plug 40 attached to the tip of the input cord 41 has a plug sleeve 40a, a plug ring 40b, and a plug tip 40c at the tip portion formed to have a small diameter of φ3.5 mm. The left and right (LR) audio signals output from the AV device are input from the plug sleeve 40a, and the Rch (+) signal is plugged. Input from the ring 40b and an Lch (+) signal from the plug chip 40c, and then each of the above-mentioned signals from the three conductive brushes 34 provided on the left side via the input cord 41 And the left audio signal is input to the left small speaker 20 via the wire 32 soldered to the left wiring substrate 31, while the right audio signal is input. The two conductive brushes 34 provided on the right side are input to the right side wiring board 31 through the cross cord 42 soldered to the left side wiring board 31, and the right audio signal is soldered to the right side wiring board 31. The signal is inputted to the small speaker 20 on the right side via the wire 32.

  Next, as shown in FIG. 8, at the time of not using the headphone 10 with the cord winder according to the first embodiment of the present invention when not in use, the tip of the input plug 40 is 3.5 mm in diameter on the left headphone assembly 11L side. When the input cord 41 is wound up by operating the plug sleeve 40a having a small diameter, the plug sleeve 40a of the input plug 40 is pierced into the protruding portion 15d of the third frame body 15 of the left headphone housing 12L. By storing the input cord 41 in the small diameter hole of the provided stepped hole 15d1, the input cord 41 can be wound around the cord winding device 30 (FIGS. 1, 3, and 4) stored in the left headphone housing 12L. .

  On the other hand, on the right headphone assembly 11R side, the cross cord 42 is operated by operating the cam pin 55 that advances and retreats in the small diameter hole of the stepped hole 15d1 formed in the protruding portion 15d of the third frame 15 of the right headphone housing 12R. Is wound into the small-diameter hole of the stepped hole 15d1 formed in the projecting portion 15d, whereby the cord winding device 30 (the cord winding device 30 in which the jumper cord 42 is housed in the right headphone housing 12R). 1, 3 and 5)).

  Further, as shown in FIG. 9, when the input cord 41 is wound up by the operation of the convex portion 40d formed with a small diameter of 3.5 mm on the plug molding portion of the input plug 40 on the left headphone assembly 11L side. Is a stepped hole 15d1 in which the convex portion 40d of the input plug 40 is drilled in the protruding portion 15d of the third frame body 15 of the left headphone housing 12L while the plug sleeve 40a of the input plug 40 is inserted into the AV device. The cord winding device 30 (FIGS. 1, 3, and 4) in which the input cord 41 is accommodated in the left headphone housing 12L while the input cord 41 side is attached to the AV device is stored in the small-diameter hole. Can be wound up.

  Of course, when the cord 42 is wound around the cord winding device 30 (FIGS. 1, 3 and 5) housed in the headphone housing 12R on the right headphone assembly 11R side, the cam pin 55 is the same as in FIG. Can be operated.

As described above, when the headphone 10 with the cord winding device is not used, the input cord 41 and the cross cord 42 are both stored in the pair of left and right headphone housings 12L and 12R. Since it is wound up, the storage process of the input cord 41 and the transition cord 42 is performed satisfactorily, and the appearance of the appearance is also excellent.
Furthermore, since the small speaker 20 and the cord winding device 30 are housed together in the pair of left and right headphone housings 12L and 12R, the pair of left and right headphone housings 12L and 12R can be shared.

  FIG. 10 shows a headphone with a cord winder according to a second embodiment of the present invention, and shows a state in which an input cord and a transition cord are pulled out from a pair of left and right headphone housings in use, and FIG. FIG. 12 is a plan view showing a left headphone assembly in a head with a cord winding device according to a second embodiment of the invention, and FIG. 12 is a right headphone assembly in the head with a cord winding device according to the second embodiment of the present invention. FIG. 13 is a plan view showing the reel lock releasing operation to the reel lock lever of the reel lock mechanism portion in the headphone assembly on the right side in the head with the cord winding device according to the second embodiment of the present invention. FIG. 14 is a diagram of the headphones with a cord winder according to the second embodiment of the present invention. FIG. 15 is a diagram showing a first state in which a cord is wound in a pair of left and right headphone housings, and FIG. 15 is a diagram showing a headphone with a cord winder according to a second embodiment of the present invention. It is the figure which showed the 2nd state wound up in a pair of headphone housing, respectively.

  The headphone 10 'with the cord winding device of the second embodiment according to the present invention shown in FIG. 10 is the same as the headphone 10 with the cord winding device of the first embodiment of the present invention described above except for the configuration and part thereof. It is the same structure, and here, for convenience of explanation, the same reference numerals are given to the constituent members shown above, and the constituent members different from those in the first embodiment are given new reference numerals, The description will focus on the differences.

  The above-described headphone 10 'with the cord winding device according to the second embodiment of the present invention is a partial improvement over the headphone 10 with the cord winding device according to the first embodiment described above. The headphone assembly 11L, 11R of the headphone with cord winding device 10 of the first embodiment is mounted on the right and left ears while the user intentionally provided the headphone assembly 11R on the right side described in FIG. When the cam pin 55 is pushed in, the reel lock to the take-up reel 33 by the right reel lock lever 51R is released, so that the transition cord 42 is taken up by the right take-up reel 33. There is a problem that the headphone assembly 11R on the right side is detached from the right ear due to the neck or the pulling force of the cross cord 42. There is a fear.

  In order to avoid the above problem, in the headphone 10 'with the cord winding device of the second embodiment, the headphone assembly 11L', 11R 'is not attached to the left and right ears of the user and only the right headphone assembly is used when not in use. The reel lock lever 51R ′ of the reel lock mechanism 50R ′ provided in 11R ′ can be released from the reel lock to the take-up reel 33, and the transition cord 42 is provided on the right headphone assembly 11R. In accordance with this improvement, in the second embodiment, in the headphone housings 12L ′ and 12R ′ of the left and right headphone assemblies 11L ′ and 11R ′, the left third frame body 15L ′ The right third frame 15R ′ and the reel lock lever 51R ′ of the right reel lock mechanism 50R ′ are partially improved.

  In the second embodiment, in the left headphone assembly 11L, the reel lock release to the take-up reel 33 by the reel lock lever 51L of the reel lock mechanism 50L is the same as in the first embodiment. Since the protrusion 40d of the sleeve 40a or the input plug 40 is inserted into the stepped hole 15d1 of the protrusion 15d ′ formed to protrude from the third frame 15L ′, the description thereof is omitted.

  More specifically, as shown in FIGS. 10 and 11, in the left headphone assembly 11L ′, from a part of the outer side of the ring-shaped outer peripheral surface 15b (shown only in FIG. 11) of the third frame 15L ′. A protruding pin 15d2 is integrally formed on the outer surface of the protruding portion 15d ′ formed to protrude like an arm. At this time, the protruding pin 15d2 is located near the small diameter hole of the stepped hole 15d1 into which the plug sleeve 40a of the input plug 40 enters on the outer surface of the protruding portion 15d ′ as shown in FIG. It is formed to protrude outward at a substantially right angle to the stepped hole 15d1.

  On the other hand, as shown in FIGS. 10 and 12, in the right headphone assembly 11R ′, an arm-like projection is formed from a part on the outer side of the ring-shaped outer peripheral surface 15b (only FIG. 12 is shown) of the third frame 15R ′. A reel unlocking hole 15d3 is formed through the outer side surface of the projecting portion 15d '' in the inner lateral direction, and the left third frame 15L is formed in the reel unlocking hole 15d3. A protruding pin 15d2 protrudingly formed on the 'protruding portion 15d' can be inserted and removed.

  At this time, the right reel lock lever 51R ′ formed using a sheet metal material is implanted on the disc portion 15a on the projecting portion 15d ″ side on the disc portion 15a of the third frame 15R ′ on the right side. The shaft 52R is provided so as to be rotatable while being constantly urged counterclockwise by a torsion spring 53R. The reel lock lever 51R ′ has a locking portion 51Ra formed by bending upward at one end side with respect to the reel lock notch portion 33b1 formed on the large-diameter reel flange portion 33b of the take-up reel 33. In addition, a reel lock release portion 51Rb ′ bent upward at one end side and the other end side via the shaft 52R faces the reel lock release hole 15d3.

  When the headphone assemblies 11L ′ and 11R ′ of the headphone 10 ′ with cord winding device of Example 2 configured as described above are removed from the left and right ears of the user when not in use, as shown in FIG. The protrusion 15d ′ of the third frame 15L ′ in the headphone assembly 11L ′ and the protrusion 15d ″ of the third frame 15R ′ in the right headphone assembly 11R ′ are opposed to each other, and the left Reel unlocking in which a protruding pin 15d2 formed on the outer surface of the protruding portion 15d ′ of the third frame 15L ′ is drilled inward from the outer surface of the protruding portion 15d ″ of the right third frame 15R ′ When the reel lock release portion 51Rb ′ of the reel lock lever 51R ′ facing the inside of the reel lock release hole 15d3 is pushed with the protruding pin 15d2, the reel lock lever 51R ′ is twisted. A reel 51R formed on one end side of the reel lock lever 51R ′ is formed on the large-diameter reel flange 33b of the take-up reel 33 so that it rotates clockwise around the shaft 52R against the net 53R. The take-up reel 33 is unlocked by moving away from the lock notch 33b1. When the take-up reel 33 is unlocked, the take-up reel 33 is rotated in the clockwise direction by the spring force of the mainspring 35 (FIGS. 1 and 3) attached in the take-up reel 33. It can be wound on the take-up reel 33.

  As described above, in the second embodiment, unless the left and right headphone assemblies 11L ′ and 11R ′ of the headphone 10 ′ with the cord winder are removed from the left and right ears of the user, the jumper cord 42 is attached to the right headphone assembly. 11R 'cannot be wound on the side, so that there is a problem that the cross cord 42 is caught on the user's neck or the right headphone assembly 11R is detached from the right ear due to the winding force of the cross cord 42. Since there is no fear, safety and usability can be improved with respect to the headphone 10 'with the cord winding device.

  Also in the headphone 10 ′ with the cord winding device of the second embodiment, as shown in FIG. 14 or FIG. 15 corresponding to FIG. 8 or FIG. 9 described in the first embodiment, the left headphone assembly 11L. On the 'side, the small diameter of the stepped hole 15d1 in which the plug sleeve 40a of the input plug 40 or the convex portion 40d of the input plug 40 is drilled in the protruding portion 15d' of the third frame 15L 'of the left headphone housing 12L'. By storing in the hole, the input cord 41 can be wound around the cord winding device 30 (FIGS. 1, 3 and 4) stored in the left headphone housing 12L ′.

  On the other hand, on the right headphone assembly 11R ′ side, the protruding pin 15d2 formed to protrude from the protruding portion 15d ′ of the third frame 15L ′ of the left headphone housing 12L ′ is used as the third frame 15R of the right headphone housing 12R ′. The cord take-up device 30 (FIGS. 1 and 3) in which the transition cord 42 is accommodated in the right headphone housing 12R ′ is inserted into the reel unlocking hole 15d3 formed in the protruding portion 15d ″. , FIG. 4).

BRIEF DESCRIPTION OF THE DRAWINGS It is the block diagram which showed the headphone with a cord winding apparatus of Example 1 which concerns on this invention in cross section. FIG. 2 is an exploded perspective view showing the pair of left and right headphone housings shown in FIG. 1 in an exploded manner. It is the disassembled perspective view which decomposed | disassembled and showed the left-right paired cord winding apparatus shown in FIG. FIG. 3 is a plan view showing the left headphone assembly in the head with the cord winding device according to the first embodiment of the present invention. FIG. 3 is a plan view showing the right headphone assembly in the head with the cord winding device according to the first embodiment of the present invention. In the headphone with cord winding device of Example 1 according to the present invention, it is a diagram showing a state in which an input cord and a transition cord are each pulled out from a pair of left and right headphone housings during use. It is a figure for demonstrating the state connected to a pair of small speakers on the left and right via the input cord and the transition cord from the input plug. In the headphone with a cord winding device according to the first embodiment of the present invention, it is a diagram illustrating a first state in which an input cord and a transition cord are wound in a pair of left and right headphone housings when not in use. In the headphones with a cord winder according to the first embodiment of the present invention, it is a diagram showing a second state in which an input cord and a transition cord are wound in a pair of left and right headphone housings when not in use. It is the figure which showed the headphone with a cord winding apparatus of Example 2 which concerns on this invention, and the state which each pulled out the input cord and the transition cord from the pair of right and left headphone housings at the time of use. FIG. 6 is a plan view showing a left headphone assembly in a head with a cord winding device according to a second embodiment of the present invention. In the head with a cord winding device of Example 2 according to the present invention, it is a plan view showing a right headphone assembly. In the head with the cord winding device according to the second embodiment of the present invention, the operation for releasing the reel lock to the reel lock lever of the reel lock mechanism in the right headphone assembly is described. In the headphones with the cord winding device of Example 2 according to the present invention, it is a diagram showing a first state in which the input cord and the transition cord are each wound in a pair of left and right headphone housings when not in use. In the headphone with cord winding device of Example 2 according to the present invention, it is a diagram showing a second state in which the input cord and the transition cord are wound in a pair of left and right headphone housings when not in use. It is a figure for demonstrating the state with which the headphone with the conventional cord winding apparatus was mounted | worn with a human right and left ear. FIG. 6 is a diagram showing a state in which an input cord is pulled out from one headphone housing during use in a conventional headphone with a cord winder. In the headphones with a conventional cord winding device, it is the figure which showed the state which wound up the input cord in one headphone housing at the time of non-use.

Explanation of symbols

10: Headphone with cord winding device of Example 1,
10 ′: Headphone with cord winding device of Example 2,
11L, 11R: A pair of left and right headphone assemblies of Example 1,
11L ', 11R' ... a pair of left and right headphone assemblies of Example 2,
12L, 12R: A pair of left and right headphone housings of Example 1,
12L ′, 12R ′: a pair of left and right headphone housings of Example 2,
13 ... 1st frame, 14 ... 2nd frame, 14a ... Inner ring part, 14b ... Outer ring part,
14c ... stay part, 14d ... air vent hole,
15 ... 3rd frame of Example 1, 15a ... Disk part, 15b ... Ring-shaped outer peripheral surface,
15c ... shaft, 15d ... projection, 15d1 ... stepped hole,
15L ', 15R' ... the third frame of Example 2,
15d '... left protrusion (Example 2), 15d "... right protrusion (Example 2),
15d2 ... extrusion pin, 15d3 ... reel lock release hole,
16 ... 4th frame, 17 ... 5th frame,
13, 14 ... inner frame, 15-17 ... outer frame,
20 ... Small speakers,
30: Cord winding device,
31 ... wiring board, 32 ... wire,
33 ... take-up reel, 33a ... center hole,
33b ... large diameter reel flange part, 33b1 ... notch part for reel lock,
33c ... reel boss part, 33d ... small diameter reel flange part,
33e: first circular recess, 33f: second circular recess,
34 ... conductive brush, 35 ... spring spring,
36 ... spring spring holding plate, 37 ... reel holding plate,
40 ... Input plug, 40a ... Plug sleeve, 40d ... Projection,
41 ... Input code, 42 ... Transition code,
45L, 45R ... a pair of left and right ear hooks, 45La, 45Ra ... bottomed holes,
46L, 46R ... A pair of left and right ear pads,
50L, 50R: a pair of left and right reel lock mechanisms of the first embodiment,
50L, 50R ′: a pair of left and right reel lock mechanisms of the second embodiment,
51L ... Left side lock lever,
51La ... locking part, 51Lb ... reel lock release part (pin),
52L ... shaft, 53L ... torsion spring,
51R: Reel lock lever on the right side of Example 1,
51R '... right reel lock lever of Example 2,
51Ra ... locking part, 51Rb ... reel lock release part (Example 1),
51Rb ′: Reel lock releasing part (Example 2)
52R ... shaft, 53R ... torsion spring,
54. Compression spring,
55 ... Cam pin, 55a ... Taper cam portion, 55b ... Low flat portion, 55c ... Pressing wall portion,
55a-55c ... Trapezoidal recessed part.

Claims (4)

A housing that houses the speakers,
A cord having one end connected to the inside of the housing and a plug at the other end;
Cord winding means that is housed in the housing and winds the cord;
Winding lock means for regulating the winding of the cord winding means;
Unlocking means for releasing the regulation by the winding lock means,
The plug includes a plug molding portion, an electrical connection portion that is a tip portion of the plug protruding from the plug molding portion, and a convex portion that is formed to protrude from the plug molding portion with a length shorter than the electrical connection portion, Have
The housing has a hole into which both the electrical connecting portion and the convex portion can be inserted,
The unlocking means is
A lock lever that enters from the inside of the housing into the space occupied by at least the convex portion when the electrical connection portion or the convex portion is inserted into the hole;
A biasing member that biases the lock lever to enter the space;
Have
When the electrical connecting portion or the convex portion is inserted, the lock lever is pushed by the electrical connecting portion or the convex portion and moves inward of the housing to move the electrical connecting portion or the convex portion. With a cord winding device, wherein the regulation by the winding lock means is released while the lock lever is in contact with the side surface on the inner side of the housing and the lock lever is in contact with the side surface headphone. The lock lever is rotated around a rotation axis by the urging force of the urging member, and one end side enters the space,
The headphone with a cord winding device according to claim 1, wherein the rotation shaft is located farther from the one end side than the opening of the hole.   2. The cord is wound up on the side where the electrical connection portion or the convex portion inserted into the hole urges the lock lever by releasing the restriction by the winding lock means. A headphone with a cord winding device according to claim 2.   The headphone with a cord winding device according to any one of claims 1 to 3, wherein a diameter of the electrical connection portion and a diameter of the convex portion are the same.

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