WO2016002546A1

WO2016002546A1 - Acoustic device

Info

Publication number: WO2016002546A1
Application number: PCT/JP2015/067806
Authority: WO
Inventors: 義朗平松
Original assignee: 松栄電子工業株式会社
Priority date: 2014-06-30
Filing date: 2015-06-21
Publication date: 2016-01-07
Also published as: JP6118764B2; JP2016015531A

Abstract

An acoustic device (100) having: frames (120); cases (110) affixed to the frames and having earmuff parts (150), and housing acoustic generation units; and a headband (130) connected to the frames. Spaces (R) are formed between the frames and the cases for hanging on the user's ears. Thus, it is possible to provide an acoustic device that can be worn over the head or worn as a neckband, without providing a movable mechanism.

Description

Sound equipment

The present invention relates to an acoustic device to be worn on a user's ear.

Some types of headphones have a band for fixing to the head. This type of headphones is classified into an overhead type and a neckband type from the viewpoint of a wearing mode. The overhead type means a structure in which the headband is placed on the head when worn. The neckband type means that the headband is located on the back of the head (back of the neck) when worn.
In general, the overhead type has a good wearing feeling, but the hairstyle tends to be disturbed, and the neckband type has a characteristic that the wearing feeling is sacrificed to realize stable wearing although the hairstyle is not easily disturbed. Furthermore, since each type has a very different impression when worn, it is not suitable for wearing scenes from the viewpoint of fashion. Therefore, when going out, there is a desire to use the overhead type and the neckband type properly depending on the situation. However, it is not realistic to carry two headphones. From this point of view, headphones have been developed that can realize both overhead-type wearing and neckband-type wearing.

In the headphones according to Non-Patent Document 1, two structures are selectively realized by bending the housing and the frame 90 degrees. However, if such a movable mechanism is introduced, the durability and design of the movable part are sacrificed and the manufacturing cost is high.
An object of the present invention is to provide an acoustic device that can realize both overhead-type wearing and neckband-type wearing without providing a movable mechanism.

In one aspect, the present invention includes a frame, a housing that is fixed to the frame, has an earpiece, accommodates a sound generating unit, and a headband joined to the frame, And a space for inserting a user's ear is formed in a gap between the housing and the housing.
In a preferred embodiment, the space is a hole formed in the frame.
In a preferred embodiment, it further has a mechanism for adjusting the length of the headband.
In a preferred aspect, the sound generation unit includes a microphone and a speaker that amplifies and outputs sound collected by the microphone.

According to the acoustic device of the present invention, it is possible to realize both overhead-type wearing and neckband-type wearing without providing a movable mechanism.

1 is a front view of a headphone 100. FIG. 2 is a rear view of the headphone 100. FIG. 1 is a right side view of a headphone 100. FIG. 1 is a left side view of a headphone 100. FIG. 1 is a plan view of a headphone 100. FIG. 2 is a bottom view of the headphone 100. FIG. It is a figure which shows a 1st mounting state. It is a figure which shows a 2nd mounting state. It is a right side view of the headphone 100A. It is a right view of the headphone 100B.

DESCRIPTION OF SYMBOLS 100 ... Headphone 110 ... Case 120 ... Frame 130 ... Headband 140 ... Length adjustment arm 150 ... Ear pad 160 ... Microphone hole R, R1, R2 ··space

FIGS. 1A to 1F are a front view, a rear view, a right side view, a left side view, a plan view, and a bottom view of the headphones 100, respectively. The headphone 100 includes a housing 110, a frame 120, a headband 130, a length adjustment arm 140, an ear pad 150, and a microphone hole 160.
The case 110 has a substantially flat cylindrical shape, and houses therein a sound generation unit (not shown) for generating an acoustic wave including a battery, a power supply circuit, a speaker, a microphone, an acoustic signal processing circuit, an amplifier, and the like. The generated acoustic wave is transmitted through the ear pad 150 and propagates into the ear of the user of the headphone 100 (hereinafter referred to as a user).
The ear pad 150 has a substantially flat cylindrical shape, is formed of a soft and highly sound-permeable material such as sponge or urethane, is joined to the housing 110, and comes into contact with the ear when the user wears the headphones 100.
The microphone hole 160 is provided to collect external sound with a microphone housed in the housing 110.

The headphones 100 function as a hearing aid as an example. That is, the sound generation unit amplifies the external sound collected by the microphone and emits the sound from the speaker.
Note that the sound collection function may be omitted from the sound generator. That is, the headphones 100 function as a portable music playback device. In this case, the housing 110 is provided with signal lines (codes) and terminals (both not shown) for supplying music signal of the music to be reproduced from the outside to the acoustic signal processing circuit. Alternatively, a wireless communication module may be provided in the housing 110 to receive a musical sound signal from the outside. Alternatively, the sound emission function may be omitted from the sound generation unit. That is, the headphone 100 is caused to function as a microphone device. Alternatively, a switch for enabling either or both of the sound emission function and the sound collection function of the sound generation unit is provided on the headphone 100 (for example, the surface of the frame 120), and the user operates the switch to enable the sound. The function of the generator may be switched.
In short, the headphone 100 is an acoustic device having at least one of a sound emitting function and a sound collecting function, and there is no limitation on the application or acoustic characteristics.

The frame 120 is formed of plastic or metal, and is joined to the frame 120 so as to wrap the casing 110. The frame 120 has a substantially elliptical or almond-shaped gap with a slightly sharp tip as viewed from the side. The casing 110 is covered in a state where it is joined to the frame 120, and a part of this space is covered by the casing 110, while the remaining part of the space (R) is not covered by the casing 110 (that is, each The inner and outer sides of the frame 120 are penetrated; see FIGS. 1C and 1D). The shape of R is preferably a curve that fits the curve of the ear in the second wearing state as described above.

The headband 130 is formed in a substantially flat plate shape at the center and bent toward both ends so as to fit the head in the first mounting state to be described later, and is a square column shape with a hollow inside near both ends. It has become. The headband 130 is formed of an elastic material. When the headband 130 is attached, a force that presses inward from both the left and right sides acts by an elastic force. The headband 130 is connected to the frame 120 via a length adjustment arm 140.

The length adjusting arm 140 is an elongated prismatic member formed of plastic or metal, and protrusions are formed on the surface at predetermined intervals. One end of the length adjusting arm 140 is fixed to the frame 120. Multiple ends of the length adjusting arm 140 are slidably inserted into a cavity at the end of the headband 130, and the headband 130 can be fixed at a plurality of positions. In other words, the length adjusting arm 140 is an expansion / contraction mechanism for changing the position of the headband 130 relative to the frame 120 (in other words, the length of the arm). Note that the length adjustment arm 140 may be omitted and the size of the headphones 100 may be fixed.

Referring to FIGS. 2 and 3, a method of wearing headphones 100 will be described. FIG. 2 shows a first wearing state (overhead type), and FIG. 3 shows a second wearing state (neckband type). The user can freely determine and change the first / second wearing state according to his / her preference, application, mood, usage environment, and the like.

In the first wearing state, after the user adjusts the length of the arm 140 for adjusting the length according to the shape and size of the head, the ear pad 150 is located near the center of the ear and the headband 130 is the top of the head. This is realized by wearing the headphones 100 so as to make contact in the vicinity. At this time, the headphone 100 is fixed to the user by urging the two ear pads 150 toward the ear and supporting the headband 130 at the top of the head. At this time, no ear is inserted into the space R.
Note that the headband 130 may not be in contact with the head if the biasing force of the ear pad 150 is sufficiently strong. In short, the user can freely determine how the headband 130 contacts the head (or not at all) within the adjustment limit of the length adjustment arm 140.

On the other hand, the second wearing state is a state where a part (901) of the upper side of the ear is inserted into the space R. That is, the ear is hooked between the frame 120 and the housing 110. At this time, the headphones 100 are fixed to the user by the urging force to the ears in the two ear pads 150 and the frame 120 being supported by the upper part (901) of the ears. At this time, as shown in the figure, the central portion of the headband 130 is not in contact with the head. However, the user may adjust the length adjustment arm 140 so that the headband 130 contacts the back of the head (or the back of the neck).

In a preferred embodiment, the change between the first wearing state and the second wearing state is performed smoothly by the user holding the frame 120 with his / her hand and rotating the headphones 100 around the case 110. In addition, the shape, position, and size of the space R are determined.

According to the above embodiment, the user can freely change the overhead type and the neckband type at any time. Since the headphone 100 of the above embodiment does not need to be provided with a movable mechanism for realizing this wearing form, the design freedom, weight, strength, and compactness are not limited when the headphone 100 is designed. .

In the present invention, the shape and size of the housing 110, the frame 120, the headband 130, the length adjusting arm 140, the ear pad 150, the microphone hole 160, and the space R are not limited to those described above. For example, the headband 130 may be two bent rod-shaped members, or a pad that is a portion that contacts the head may be provided on the rod-shaped member. In short, in the first wearing state and the second wearing state, the headband 130 may or may not contact the head. The user needs to consider the user's preference for the feeling of pressure and tightness, and compatibility with the usage environment (for example, whether or not the user is exercising and requires a holding force) Accordingly, the length adjusting arm 140 may be adjusted. However, the shape and size of the space R is preferably stable in a state where it is caught by the ear (that is, a state where a part of the upper side of the ear is inserted into the space R).

The above embodiment is only an example of the present invention regarding the shape, size, and formation method of the space for inserting the ear. 4 and 5 show other examples. Headphones 100 </ b> A and 100 </ b> B shown in the figure are different from the headphones 100 in the shape of a space for inserting an ear. In the example of FIG. 4, only one space (through hole) R <b> 1 is formed in the frame 120 in each of the left and right cases 110. In the example of FIG. 5, the space for inserting and fixing the ear is not formed by making a hole in the frame 120, but is a space R <b> 2 having a notch in a side view connected to the external space. ing. In any case, in the second wearing state, the headphones are fixed in a state where a part of the frame 120 is positioned between the head and the ear part inserted into the space at the upper base of the ear. It only has to be.

In short, the acoustic device of the present invention includes at least a frame, a housing fixed to the frame, having an earpiece, housing the acoustic generator, and a headband joined to the frame, A space for inserting a user's ear is formed in the gap between the frame and the housing.
In a preferred embodiment, it further has a mechanism for adjusting the length of the headband. This mechanism can be adjusted so that the headband is supported by the user's head when the user's ear is not inserted into the space. Alternatively, this mechanism can be adjusted so that the headband does not contact the user's head when a portion of the user's ear is inserted into the space.

Claims

Frame,
A housing fixed to the frame, having an earpiece, and containing a sound generating unit;
A headband joined to the frame,
A space for inserting a user's ear is formed in a gap between the frame and the housing.
The acoustic device according to claim 1, wherein the space is a hole formed in the frame.
The acoustic device according to claim 1, further comprising a mechanism for adjusting a length of the headband.
The acoustic device according to any one of claims 1 to 3, wherein the acoustic generator includes a microphone and a speaker that amplifies and emits sound collected by the microphone.