JPH0742297U - Inner ear headphones - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the cord part of inner ear headphones from getting tangled. [Structure] Inner-ear type headphone speaker 1
The projecting portion 8 provided in the length direction of the first cord 3 of the two cords 2 and 13 attached thereto, and the second cord gripping the projecting portion 8 provided in the first cord 3. The engaging concave portions 9 provided on the No. 4 and the slidable slider 7 connecting / separating the engaging concave portions 9 make it possible to bundle the branched cords into one and prevent the cords from being entangled.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to stereo headphones that convert an electrical signal from an audio signal source into audio.

[0002]

[Prior art]

 A conventional example will be described with reference to the schematic configuration diagram of FIG. In the so-called inner ear headphones, the two cords that transmit the left and right audio signals to which the plug 1 inserted in the audio signal source is attached are grouped into one. It is branched into two parts from the middle, and speaker parts 12 and 13 are attached to the respective tip parts.

In this case, since the two speaker units 12 and 13 are freely movable and the cords 28 and 29 of the branched portions are thin, the cords are easily entangled when not in use. As a means for preventing these, there is one in which a rubber ring 30 for inserting the two branched cords 28, 29 into a slidable unit is inserted.

[0004]

[Problems to be solved by the device]

 However, when the length of the branched cord is shortened to change the position of the branch point, a ring is formed between the branch point and the rubber ring, and a complicated entanglement occurs through this ring. was there. An object of the present invention is to provide an inner ear type headphone that prevents the cords from being entangled when they are not used.

[0005]

[Means for Solving the Problems]

 For this reason, in the present invention, the stereo headphone in which the cord is branched from the middle and the speaker is connected to each end and attached to each of the left and right ears, has a protruding portion in the length direction from the cord branch point to the speaker end. By the provided first cord, the second cord provided with the engaging recess for holding the protruding portion of the first cord, and the slider for slidably holding the first cord and the second cord, It is characterized in that the first cord and the second cord are connected and separated from each other. The cross-sectional shapes of the first cord and the second cord are semicircle, ellipse, polygon, etc., and the slider shape is engaged. By doing so, the protruding portion of the first cord and the engaging concave portion of the second cord are positioned to face each other.

[0006]

[Action]

 The cord part of the two branches on which the speaker is attached is generally thin, and is easily entangled with each other when not in use. However, the code is equivalently thickened by combining the code parts into one, and the number of intertwined parties is reduced, so that it is difficult to entangle.

[0007]

【Example】

 One embodiment of the present invention will be described with reference to the schematic configuration diagram of FIG. 1, the sectional view of FIG. 2 and the enlarged view of the main part of FIG. In these figures, the portion of the cord 2 to which the plug 1 connected to the audio signal source is attached has two cords that are connected in parallel and are gathered together. Then, a stopper 6 is provided at a branch point 5 where the cord 2 branches.

The end of the first cord 3 branched into two is connected to the speaker 13, and a protrusion 8 having a protrusion-shaped cross section is formed on the side surface facing the second cord 4 in the longitudinal direction. It is provided in. The speaker 12 is also connected to the end of the second cord 4, and an engaging recess 9 for gripping the protrusion 8 is provided on the side surface facing the first cord 3. A slider 7 is disposed between these two cords, and the reciprocating movement of the slider 7 connects and separates the protrusion 8 and the engagement recess 9.

On the stopper 6 side of the slider 7, a tightening portion 10 for connecting the protrusion 8 and the engaging recess 9 is provided, and on the opposite side thereof, a wedge portion 11 for separating is provided. The wedge portion 11 has a guide portion 14 for connecting the protrusion 8 and the engaging recess 9. According to these configurations, by moving the slider 7 to the speakers 12 and 13 side, the first cord 3 and the second cord 4 can be linked and integrated, and when the slider 7 is moved to the stopper 6 side. It can be separated into two.

As another embodiment, as shown in the perspective view of FIG. 4, the first cord 15 and the second cord 16 have semi-circular cross-sections, and the projecting portions 8 and The engaging recess 9 may be provided. In this case, since the guide portion 19 of the slider 18 can be formed in a semicircular shape, the protrusion 8 of the first cord 15 and the engagement recess 9 of the second cord 16 can be easily arranged to face each other. Similarly, the cross-sectional shape of the first cord 20 and the second code 21 may be elliptical, and the guide portion 23 of the slider 22 may be elliptical, as shown in FIG.

As still another embodiment, the first cord 24 and the second cord 25 may be formed in a polygonal cross section. In FIG. 6, the cross-sectional shape is triangular, the protrusions 8 and the engaging recesses 9 are provided on one side, and the guide portion 27 of the slider 26 is also triangular, so that the surfaces for sure connection and separation can be arranged to face each other. Good.

[Effect of device]

 As described above, according to the present invention, it is possible to prevent the cords of the branched inner ear headphones from being entangled. Moreover, there is an advantage that the length of the branch code portion can be freely changed even when it is used.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is a sectional view illustrating the present invention.

FIG. 3 is an enlarged view of a main part of the present invention.

FIG. 4 is a perspective view showing another embodiment.

FIG. 5 is a perspective view showing another embodiment.

FIG. 6 is a perspective view showing another embodiment.

FIG. 7 is a schematic configuration diagram showing a conventional example.

[Explanation of symbols]

 1 Plug 2, 28, 29 Code 3, 15, 20, 24 First Code 4, 16, 21, 25 Second Code 5 Branch Point 6, Stopper 7, 18, 22, 26 Slider 8 Projection 9 Engagement Recessed portion 10 Tightening portion 11 Wedge portion 12,13 Speaker 14, 19, 23, 27 Guide portion 30 Rubber ring

Claims (4)

[Scope of utility model registration request] 1. A plug connected to an electric signal source such as voice, a cord connected to the plug, a speaker connected to each end of the cord branched from the middle, and a speaker connected to each of the left and right ears. A stereo type headphone to be mounted, wherein a cord of the headphone is a first cord provided with a protrusion in a length direction from the branch point to the speaker end,
A second cord having an engaging recess for gripping the protrusion;
Inner-ear type headphones having a slider for slidably gripping and separating the first cord and the second cord. 2. The inner ear type headphone according to claim 1, wherein the branched first cord and the second cord each have a substantially semicircular cross-sectional shape. 3. The inner ear type headphones according to claim 1, wherein the branched first cord and the second cord have elliptical cross-sectional shapes. 4. The inner ear type headphone according to claim 1, wherein each of the branched first cord and the second cord has a polygonal cross-sectional shape.