JPH04233397A - Inner ear type headphone - Google Patents

Abstract

PURPOSE:To improve the degree of sealing of an abutting part onto the headphone, and to prevent the sound leakage, at the time of using the inner ear type headphone of a vertical type. CONSTITUTION:In a supporting part 1b, a placing part 8 for holding a housing 1 in auricle cavity B, and a hanging-down part 9 for abutting on the vicinity of Tragus (Latin) C and Tragus cut F and covering them are provided. In such a way, since the degree of sealing is improved, a sound leakage is reduced, and also, a characteristic in a low frequency is improved. Also, a necking part 10 is provided on an abutting part to Tragus C of the hanging-down part 9. In such a way, Tragus C is not pressed, and the sense of putting on becomes satisfactory.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to inner-ear headphones that are worn with a driver unit directly facing the ear canal.

0002

2. Description of the Related Art FIG. 7 shows an example of an inner-ear type headphone. In the figure, reference numeral 1 denotes a housing having a substantially truncated cone shape, and the front side (the right side in FIG. 7) of this housing 1 is open. Housing 1
A driver unit 2 is housed inside. 4 is a protector provided at a position facing the diaphragm 2a of the driver unit 2, and the surface of this protector is provided with a large number of through holes through which sound emitted from the diaphragm 2a passes. 3
is a ring-shaped member made of silicone rubber or the like. This ring-shaped member 3 connects the driver unit 2 to the housing 1.
to prevent the sound emitted from the back of the driver unit 2 from leaking from the joint surface of the driver unit 2 and the housing 1, and to prevent the sound from leaking from the joint surface between the driver unit 2 and the housing 1, and to ensure that the headphones remain in place when inserted into the concha cavity B and worn. It plays a role such as giving a feeling of comfort. 5 is a code holding section, and 6 is a code.

[0003] As shown in FIG. 8, this headphone is inserted into the concha cavity B and worn. That is, the housing 1 is disposed within the concha cavity B that forms an approximately truncated cone-shaped depression, the back side of the housing 1 is located below the concha cavity B, and both sides are located above the concha cavity B. The cord holding part 5 is held down by the tragus C and the anti-tragus E that protrude from the tragus C and the anti-tragus E.
It is placed near the intertragal notch F, which forms a roughly U-shaped gap between the Further, the entrance of the external auditory canal A is generally located on the side of the concha cavity B. Therefore, the driver unit 2 is oriented sideways with respect to the entrance of the external auditory canal A.

That is, since this type of headphones is worn with the side surface of the housing 1 blocking the ear canal A, the audible characteristics in high frequencies are degraded. Furthermore, the shape and size of the concha cavity B vary from person to person, and often do not match the shape and size of the housing 1, resulting in sound leakage and poor low-frequency characteristics. In order to prevent such inconveniences, so-called vertical type inner-ear headphones have been proposed.

FIG. 9 shows an example of this. In addition,
In FIG. 9, parts corresponding to those in FIG. 7 are designated by the same reference numerals. Housing 1 is driver unit 2
A storage section 1a that stores the storage section 1a, and a storage section 1a that stores the concha cavity B.
It consists of a support part 1b that is held in place. This storage part 1
a and the support portion 1b are integrally formed. As shown in FIGS. 10 and 11, this support portion 1b has a plate shape with a substantially rounded triangular cross section when attached, and the storage portion 1
It is overhanging from a. Reference numeral 7 denotes a bushing for the cord 6, which is attached to the lower surface of the support portion 1b near the storage portion 1a.

[0006] As shown in FIGS. 10 and 11, this headphone has a tragus C and a support portion 1 that are in contact with a protector 4.
b is held by the elastic force and frictional force between the conchal cavity B and the lower part of the antihelix D that abuts. Then, the driver unit 2 is installed so as to directly face the ear canal A. Although not mentioned above, in order to prevent sound leakage, the ring-shaped member 3 has a shape in which a portion directly facing the external auditory canal A is cut off.

[0007]

[Problems to be Solved by the Invention] In order to prevent sound leakage from the vicinity of the tragus C during playback with the headphones shown in FIG. 9 and FIG. 11). However, even if such measures are taken, during playback, as shown in Figure 10, a gap is created above and below the tragus C, especially on the side of the intertragal notch F, resulting in sound leakage and deterioration of low-frequency characteristics. However, I couldn't get good sound quality.

[0008] Therefore, the present invention improves the sealing degree around the tragus and intertragal notch, prevents sound leakage from these parts, and improves low-frequency characteristics even when vertical type headphones are worn. , the purpose is to obtain good sound quality.

[0009]

[Means for Solving the Problems] The present invention includes a housing consisting of a housing portion that houses a driver unit and a support portion that is connected to the housing portion on one side, and the housing portion of the housing is connected to the ear. In inner-ear headphones that are housed in the concha cavity and are worn with the driver unit directly facing the external auditory canal, the support part of the housing includes a mounting part that holds the housing in the concha cavity, and a tragus and intertragal notch. A hanging part is provided that comes into contact with and covers the vicinity. Further, a constriction portion is formed in the hanging portion corresponding to the contact portion with the tragus of the ear.

0010

[Operation] The hanging part 9 of the support part 1b of the housing 1 is connected to the tragus C.
Since they are in close contact with each other so as to cover and cover the vicinity of the intertragal notch F, there is no leakage of sound from these areas during playback. In other words, the degree of sealing between the hanging portion 9 and its corresponding portion is improved, and the low frequency characteristics are improved.

Furthermore, by providing the constricted portion 10 at the portion of the hanging portion 9 that comes into contact with the tragus C, a large pressure is not applied to the tragus C, thereby preventing deterioration of the wearing feeling.

0012

[Embodiment] An embodiment of the present invention will be described below with reference to FIG. 1(A). In FIG. 1(A), parts corresponding to those in FIGS. 7 and 9 are designated by the same reference numerals.
A detailed explanation thereof will be omitted.

The support portion 1b of the housing 1 is provided only on one side (the left side in FIG. 1A) with respect to the storage portion 1a. This support portion 1b is composed of a placement portion 8 on the antihelical helix D side and a hanging portion 9 on the intertragal notch F side, with the storage portion 1a approximately in the center. The mounting portion 8 and the hanging portion 9 are integrally formed. The mounting portion 8 has a substantially U-shape and abuts along a substantially U-shaped recess located from near the bottom of the antihelix D in the concha cavity B to the back of the antitragus E (Fig. 1
(See (b)). On the other hand, the hanging portion 9 is inclined toward the intertragal notch F so as to cover the intertragal notch F, and hangs down in a tapered manner (see FIG. 1(b)).

In the housing 1, a portion corresponding to the tragus C, that is, a portion connected from the protector 4 to the support portion 1b has a tragus C as shown in FIGS.
A constriction 10 is provided to allow the water to escape. The constricted portion 10 has a substantially U-shaped cross section corresponding to the shape of the tragus C, and prevents excessive pressure from being applied to the tragus C when the headphones are worn. And, since the drooping part 9 covers from the tragus C to the intertragal notch F in a state of contact,
The adhesion of such parts is improved.

In addition, the surface P of the hanging portion 9 that comes into contact with the vicinity of the intertragal notch F is arranged from the vicinity of the constriction 10 to the tip (as shown in FIGS. 1 (a) and (b) (near X) is slightly curved toward the external auditory canal A side (see Fig. 3). 7 is a bushing, and the cord 6 is taken out from the tip of the hanging portion 9, as shown in FIG. 1(A).

[0016] Inside the support portion 1b of the housing 1, a pipe for bass compensation, which is not shown, is provided which is connected to the driver unit 2 in the storage portion 1a.

This example is constructed as described above and is installed as follows. First, hold the tip of the hanging portion 9 of the support portion 1b (with your right hand since the example shown in FIG. 1(A) is for the right side). In this case, the protector 4 side of the storage portion 1a is naturally directed toward the user's front side (downward in FIG. 2). That is, the mounting portion 8 has a substantially U-shape, and the hanging portion 9
The tapered, hanging shape allows users to hold the headphones in a way that matches the shape of their ears, without having to carefully check the left and right sides of the headphones.

Next, the user selects the storage section 1 of the housing 1.
The side surface of the housing part 1a is made to face the concha cavity B so that the driver unit 2 of a is directly opposed to the external auditory canal A. Then, in this state, the storage part 1a is inserted into the concha cavity B, and the driver unit 2 is made to face the external auditory canal A. During this insertion, the portion of the concha cavity B that extends below the antihelical helix D is slightly expanded due to the shape of the mounting portion 8, and the shape of the antitragus E is also slightly pressed downward and deformed.

After the headphones are inserted, they are slightly restored to their original state, and the circumferential surface of the mounting portion 8 fits into the concha cavity B at the lower part of the antihelix D (see FIG. 1(b)). Moreover, in this fitted state, the mounting portion 8 is arranged so as to be mounted along the recess located at the back of the pair of beads E. On the other hand, the tragus C is slightly deformed along the constriction 10 when the headphones are inserted. After the earpiece is worn, the constriction 10 covers and surrounds the tragus C, as shown in FIG. At the same time, the hanging part 9
are in close contact with each other so as to cover the vicinity of the intertragal notch F (see Fig. 1 (b)).

As shown in FIG. 2, the headphones are held by the elastic force and frictional force between the lower part of the helix D in the concha cavity B and the tragus C. Then, the driver unit 2 is installed so as to directly face the ear canal A. Further, when worn, since the bushing 7 is attached at the tip of the hanging portion 9, the bushing 7 does not hit the ear. When removing the headphones, the process is reversed to that described above.

Note that FIG. 4 shows the configuration of the left-side headphone, which is formed symmetrically to the right-side headphone. Moreover, FIGS. 5 and 6 show a method of mounting the same.

As described above, according to the present example, since the hanging portion 9 covers the tragus C and the vicinity of the intertragal notch F in a state of contact, the degree of sealing of this portion is increased. Therefore, it is possible to prevent sound leakage from the vicinity of the tragus C, so that low frequency characteristics can be improved and good sound quality can be obtained. Note that since sound leakage can be prevented in this way, noise caused by sound leakage can be reduced even when the volume during playback is high.

Furthermore, in this example, the user can easily distinguish between the left and right sides of the housing 1 by looking at the direction of the protector 4 of the storage section 1a of the housing 1 and the directions of the placing section 8 and hanging section 9. can.

Furthermore, in this example, since the hanging part 9 has a tapered hanging shape, the tip of the hanging part 9 can be easily pinched with the fingertips, and the operability of the housing 1 with the fingertips is good. becomes. Further, when the hanging portion 9 is held, the bushing 7 is not in a position that interferes with the fingertip, so that the operability of the housing 1 with the fingertip becomes even better.

Furthermore, in this example, when putting on the headphones, the direction in which the housing portion 1a of the housing 1 is inserted into the concha cavity B can be easily determined. In other words, in this example,
Since the placing portion 8 has a substantially U-shape and the hanging portion 9 has a tapered hanging shape, the storage portion 1a
The protector 4 side is naturally directed toward the user's front side. That is, in this example, the directionality of the housing 1 when being held is clear, and the operability of the housing 1 is improved, so that the housing 1 can be easily positioned in accordance with the concha cavity B of the user. This allows you to wear the headphones securely.

Furthermore, in this example, the mounting portion 8 of the support portion 1b is shaped to abut along the anti-tragus E from near the lower part of the anti-helix D in the concha cavity B, thereby increasing the contact area. Therefore, the pressure per unit area applied to the abutting part on the anti-helix D side is reduced, and even if the headphones are worn for a long time, the abutting part does not become painful, and the wearing feeling can be improved.

[0027] Furthermore, since the constricted portion 10 corresponding to the tragus C is provided at the part corresponding to the tragus C, no unreasonable pressure is applied to the tragus C when the headphones are worn, so that the headphone feels comfortable when worn. can do. That is, when the headphones are worn, the entire tragus C is only slightly deformed along the constriction 10, so that no undue pressure is applied to the tragus C.

Furthermore, in this example, since the bushing 7 is attached at the tip of the hanging portion 9, there is no trouble of the bushing 7 coming into contact with the vicinity of the bead E, and the headphone feels comfortable when worn.

Further, the hanging portion 9 of the support portion 1b is connected to the concha cavity B.
This hanging portion 9 can be made relatively long. Therefore, the pipe for bass compensation installed in the support portion 1b can be made longer, the reproduction sensitivity of deep bass sounds can be further increased, and the perceptual sound quality can be improved.

[0030]

Effects of the Invention According to the present invention, the hanging portion of the support portion of the housing is shaped to abut and cover the vicinity of the tragus and intertragal notch, thereby preventing sound leakage from such portions and improving the low frequency range. It is possible to improve the characteristics of Further, by providing a constricted portion at the portion of the hanging portion that contacts the tragus of the ear, a large pressure is not applied to the tragus of the ear, thereby preventing deterioration of the wearing comfort.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of the present invention, in which (a) is a perspective view and (b) is a diagram showing a state of use.

FIG. 2 is a sectional view taken along line II in FIG. 1(b).

FIG. 3 is a schematic cross-sectional view taken along line II-II in FIG. 1(b).

FIG. 4(A) is a perspective view, and FIG. 4(B) is a diagram showing the state of use.

FIG. 5 is a sectional view taken along line III-III in FIG. 4(b).

FIG. 6 is a schematic cross-sectional view taken along the line IV-IV in FIG. 4(b).

FIG. 7 is a diagram showing an example of a conventional inner-ear headphone.

FIG. 8 is a diagram showing the usage state of the example of FIG. 7;

FIG. 9 is a diagram showing another example of conventional inner-ear headphones.

FIG. 10 is a diagram showing the usage state of the example of FIG. 9;

11 is a sectional view taken along line V-V in FIG. 10. FIG.

[Explanation of symbols]

1 Housing 1a Storage section 1b Support part 2 Driver unit 7 Bushing 8 Placement section 9 Drooping part 10 Neck part A. External auditory canal B Concha cavity C Tragus of the ear D　Anti-helix E vs beads F　Intertragal notch

Claims (2)

[Claims] [Claim 1] A housing consisting of a housing section housing a driver unit and a support section connected to the housing section only on one side, the housing section of the housing being housed in the concha cavity, and the above-mentioned In an inner-ear headphone in which a driver unit is worn with the driver unit directly facing the external auditory canal, the supporting portion of the housing includes a mounting portion that holds the housing in the concha cavity, and a mounting portion that abuts near the tragus and intertragal notch. An inner-ear headphone characterized by having a hanging part that covers the inner ear. 2. The inner-ear headphone according to claim 1, wherein the hanging portion is formed with a constriction portion corresponding to the contact portion with the tragus of the ear.