JPS6228150Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a so-called "single cord type" headphone in which the cord for each channel is routed from one side of the headband.

In this type of headphone, a cord holding case called a post is attached to one side of the headband, and two-core cords are branched within this case and connected to the respective headphone bodies. However, according to this, it is necessary to provide a total of three entrances and exits in the cord holding case, a two-core cord insertion part and a left and right channel cord extraction part, and to take up space for inserting the left and right channel cords into the case. Therefore, the case shape becomes large, which is not desirable in terms of design. This becomes more pronounced when the adjustable sub-band is attached using this type of cord retainer. Furthermore, since the left and right channel cords must be pulled out from the case, improvements in assembly workability have also been desired.

SUMMARY OF THE INVENTION An object of this invention is to provide a single cord type headphone which can further reduce the size of the cord holding case attached to one side of the headband and which can be easily assembled.

Hereinafter, embodiments of this invention will be described with reference to the accompanying drawings.

FIG. 1 shows a cord applied to this headphone. This cord 1 is a two-core cord formed by bundling a left channel cord 4 and a right channel cord 5, and one end of the cord is A known plug 2 is attached. Each channel cord 4, 5 is branched and connected to the corresponding headphone body (not shown), but in this case, a bushing 6 made of soft synthetic resin or the like is provided at the branch part. hand,
One of the branched left channel cords 4 is inserted into the bushing 6 in a folded state as shown in the figure.

This bushing 6 is easily formed, for example, by press molding from above each channel cord 4, 5, and has a number of notch grooves 7 around it for flexibility, and a case side which will be described later. An engaging step portion 8 is provided which cooperates with the engaging groove provided in the engaging groove.

FIG. 2 shows the structure of a cord holding case that holds the above-mentioned cord 1 at one end of the headband. In this invention, this cord holding case holds a sub-band that slides with respect to the headband. It also serves as a case. This cord holding case 9 has a front case 10 and a back case 11 formed in half, and in this case,
The back case 11 is shown turned upside down for convenience. Band attachment recesses 12, 12' and cord attachment recesses 13, 13' are formed in corresponding portions of both cases. Partition ribs 14, 14' are provided upright between the band attachment recesses 12, 12' and the cord attachment recesses 13, 13', respectively, and cutout passages 15, 15' are formed in some of them. Band mounting recess 1 of front case 10
An elongated hole 16 is bored in the upper wall portion of 2, and a sub-band 17 is inserted through the elongated hole 16. This subband 1
The end of the headband 18 is inserted from above 7 through a non-slip member 19 made of synthetic resin. The head band 18 has a through hole 20 and a head pad 21 made of synthetic rubber attached to the inside, and the head pad 21 has a right channel cord 5.
A guide hole 22 is drilled through which the guide hole 22 is inserted. Further, the headband 18 is pulled out from the openings 23 and 23' of the band attachment recesses 12 and 12', but in this case, in order to prevent the headband from being pulled out,
The back case 11 is provided with a protrusion 24 that engages with the through hole 20. On the other hand, the cord attachment recess 13,1
Openings 25, 25' are formed at 3', and grooves 26, 26' into which the engagement step 8 of the bushing 6 is fitted are bored. Then, screw insertion holes 27 and 28 are bored in the back case 11,
On the other hand, female screw holes 29 and 30 are formed in the front case 10, and the back case 11 is screwed to the front case 10 with screws 31 and 32. In the figure, 33 is a stopper for the sub-band 17, and 34 is a fixture for the headphone body.

FIG. 3 shows a state in which the cord 1 is assembled into the front case 10, and the cord 1 is inserted by fitting the engagement step 8 of the bushing 6 into the groove 26 of the cord attachment recess 13. It is inserted into the mounting recess 13. Then, the right channel cord 5 is guided into the band attachment recess 12 from the notch passage 15,
It is inserted through the through hole 20 of the head band 18 and further into the guide hole 22 of the head pad 21. Therefore, the right channel cord 5 is pulled out from the opening 23 together with the headband 18, wired along the headband 18, and connected to the right headphone body (not shown). On the other hand, the left channel cord 4 is folded back within the cord attachment recess 13,
Since it is pulled out from the lower end of the bushing 6, it is directly connected to the left headphone body (not shown). In this state, the back case 11 is put on and screwed down, so that the cord 1 is firmly attached to the cord holding case 9 via the bushing 6, as shown in FIG.

In the above configuration, the installation of code 1 is as follows:
As described above, all you need to do is attach the bushing 6 to the cord attachment recess 13 of the front case 10, pull out the left channel cord 4 together with the headband 18 from the opening 20, cover it with the back case 11, and screw it in place. Since one end of the headband 18 and the sub-band 17 are slidably assembled within the band attachment recess 12 in parallel with the attachment operation, the assembly operation is extremely simple overall.
Also, right channel code 5 is headband 18.
Since the left channel cord 4 is pulled out from the lower end of the bushing 6, the cord holding case 9 has a neat and compact design. It's summery.

In the above embodiment, the left channel cord 4 is folded back at the bushing 6, but if the cord holding case 9 is provided on the right side of the headband 18, the right channel cord 5 may be folded back.

As is clear from the description of the embodiments described above, according to this invention, the shape of the cord holding case attached to one side of the headband can be streamlined, making it easier to design, and making it more compact. Furthermore, when assembling the cord into the cord holding case, the wiring of one of the left and right channel cords can be omitted, and the cord installation work and sub-band installation work can be done almost simultaneously, making assembly work easier. Cost can be reduced.

[Brief explanation of the drawing]

The figures show one embodiment of this invention. Figure 1 is an overall view of the cord, Figure 2 is an exploded perspective view of the sub-band support, and Figure 3 is an explanation of the cord assembled in the case. FIG. 4 is a side view of the sub-band support section. In the figure, 1 is a two-core cord, 4 is a left channel cord, 5 is a right channel cord, 6 is a bushing,
9 is a cord holding case, 10 is a front case, 11 is a back case, 12 and 12' are band mounting recesses, 1
3 and 13' are cord attachment recesses, 17 is a subband, and 18 is a headband.

Claims (1)

[Claims for Utility Model Registration] The headband has a cord holding case that holds a two-core cord having a plug at one end at one end of the headband, and within the case, the two-core cord is branched into left and right channel cords. In the headphone, each of the two-core cords has a bushing that folds and binds one channel cord to the other channel cord at the branching portion thereof, and The case consists of a combination of a front case and a back case formed in a half-shape, and each case has a band attachment recess and a cord attachment recess arranged side by side, and the headband is inserted into the band attachment recess. A sub-band is slidably inserted into one end of the cord, the bushing is housed in the cord attachment recess, and the other channel cord is pulled out from the bushing so as to bypass the case. The headphone is connected to the corresponding headphone body on one side.