JP2009294412A - Advertisement system and advertisement method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new advertisement system having an advertisement effect even when an earplug is worn by using the end surface of the earplug for an advertisement display area. <P>SOLUTION: An audio device having the earplug 1 and a speaker unit 2 is used for advertisement. The speaker unit 2 has a contact body 3 detachably in contact with the end part 5a of the earplug 1 and an audio-vibration generating source 4 vibrating the contact body 3. In the contact body 3, an annular fitting part 6 is formed to be fitted to the end part 5 of the earplug 1 in an engageable and disengageable manner. The end surface 5a of the earplug 1 can be visually recognized from the outside of the fitting part 6, even when the fitting part 6 is fitted to the end part 5. An advertiser's symbol mark 7 is attached to the end surface 5a of the earplug 1 for the advertisement. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an advertising system and an advertising method using earplugs.

An earplug having a function as an advertising medium by applying decoration including an advertiser's symbol mark or logotype on its surface is known. (Patent Document 1, Patent Document 2, Patent Document 3)
US Extract 2003/75185 US Extract 6,364,052 Special table 2003-534177

  However, among the conventional earplugs that function as an advertising medium, those with a symbol mark or logo type on the outer peripheral surface function as an advertising medium because the outer peripheral surface becomes invisible when the earplug is worn. do not do. In addition, even if the earplug has a symbol mark or logotype attached to the end face of the earplug, if the earplug is deformed flexibly as a whole, the end face will be deformed when worn, and the symbol mark or Since the logotype is distorted, the function as an advertising medium is impaired when worn.

  A problem to be solved by the present invention is to provide a novel advertising system and a novel advertising method that can effectively perform an advertisement even when the earplug is worn by using the end face of the earplug as an advertisement display area. There is.

  In order to solve the above-described problems, an advertising system according to the present invention is freely attachable to and detachable from an earplug attached to a user's ear canal and an end portion (exposed end portion) that is exposed from the ear canal when the earplug is worn. An advertising system that performs an advertisement using an acoustic device having a contact body that contacts the sound source and an acoustic vibration generation source that vibrates the contact body, wherein the contact body is freely detachable from the exposed end portion. A ring-shaped or substantially ring-shaped fitting portion is formed, and the end surface of the exposed end portion is outside the fitting portion even in a state where the fitting portion is fitted to the exposed end portion. The end face is used as an advertisement display area.

  In order to solve the above-mentioned problem, another advertising system of the present invention performs an advertisement by using an end surface exposed from the ear canal as an advertisement display area when wearing an earplug worn on the user's ear canal. In the advertising system, the earplug has a columnar shape or a substantially columnar earplug portion having a thin insertion-side end portion, and a column provided at a non-insertion-side end portion of the earplug portion. And an end face of the fixed portion is used for the advertisement display area. In this advertising system, a vibrating body that is vibrated by an oscillating magnetic field applied from outside the earplug portion may be provided inside the earplug portion. In this advertising system, the earplug part may be provided with a light emitter that emits light by electromagnetic energy supplied from outside the earplug part.

  In order to solve the above-mentioned problems, the advertising method of the present invention is capable of freely contacting and leaving an earplug attached to a user's ear canal and an end portion (exposed end portion) that is exposed from the ear hole when the earplug is worn. An advertising method for performing an advertisement using an acoustic device having a contact body in contact with a sound source and an acoustic vibration source that vibrates the contact body, wherein the contact body is detachable from the exposed end portion. A ring-shaped or substantially ring-shaped fitting portion is formed, and the end surface of the exposed end portion is outside the fitting portion even in a state where the fitting portion is fitted to the exposed end portion. The end face is used as an advertisement display area.

  In order to solve the above-mentioned problem, another advertising method of the present invention performs an advertisement by using, as an advertisement display area, an end surface on the side exposed from the ear canal when wearing an earplug worn on the user's ear canal. In the advertising method, the earplug is a columnar or a substantially columnar earplug portion having a thin insertion-side end portion, and a column provided at a non-insertion-side end portion of the earplug portion. And an end face of the fixed portion is used for the advertisement display area. In this advertising system, a vibrating body that is vibrated by an oscillating magnetic field applied from outside the earplug portion may be provided inside the earplug portion. In this advertising method, the earplug part may be provided with a light emitter that emits light by electromagnetic energy supplied from outside the earplug part.

  In the advertising system and the advertising method of the present invention, a user is provided with a plurality of types of decorative seals (decorative seals) for decorating the end face of the earplug, and the user can arbitrarily select from the plurality of types of seals. It is also possible to select the sticker and attach it to the end face. Further, a plurality of types of decorative seals (dressing seals) for decorating the contact body are provided to the user, and the user selects an arbitrary seal from the plurality of types of seals on the surface of the contact body. You may make it stickable. At this time, it is desirable to supply a tack seal in which the decorative seal for the earplug and the decorative seal for the contact body are set. Further, it is desirable that the decorative seal is affixed with an advertiser's symbol mark, logotype, trademark, etc., such as an advertising company or store.

  According to the advertising system and the advertising method of the present invention, the end face of the earplug can be used for the advertisement display area, and the advertisement can be effectively performed even when the earplug is worn.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First embodiment]
In the advertising system (advertisement method) of the first embodiment, the audio device shown in FIGS. 1 to 6 is used.
The acoustic device shown in FIGS. 1 to 6 includes an earplug 1 (in this example, a pair of left and right) used in a state of being inserted into a user's ear canal, and a speaker unit 2. The speaker unit 2 constitutes a part of a mounting body that is detachably mounted on the user's head. As shown in FIG. 14, the wearing body straddles the arcuate or substantially horseshoe-shaped headband portion 31 straddling the back of the user when worn, and the root of the user's auricle from the left and right ends of the headband portion 31. Thus, it has the ear hook part (hook part) 32 extended in an arch shape, and the arm part 33 extended from the both ear hook parts 32 to a user's ear hole. The speaker unit 2 constitutes an arm portion 33 of the mounting body.

  The speaker unit 2 vibrates the contact portion (contact body) 3 that comes into contact with and separates from the exposed end portion (the end portion on the non-insertion side) 5 of the earplug 1 inserted in the user's ear canal, and the contact portion 3. And an acoustic vibration generating source 4 to be operated. The speaker unit 2 has a rectangular flat plastic unit main body 2A accommodating the acoustic vibration generating source 4, and a contact portion 3 is formed at the tip of the unit main body 2A. The base end portion of the unit main body 2A is connected to the ear hook portion of the mounting body. As the acoustic vibration generating source 4, a known acoustic vibration generating element such as a piezoelectric bimorph element or a piezoelectric unimorph element is used (for example, see Japanese Patent Application Laid-Open No. 2007-228610). A driver unit that drives the acoustic vibration generating source 4 is connected to the mounting body. The driver unit includes a signal processing circuit that processes an electroacoustic signal input from an external sound source, an amplification circuit that amplifies an output signal of the signal processing circuit and supplies the signal to the acoustic vibration generation source 4, a power supply circuit, and mode switching It has a switch. The mode changeover switch is an operation for selectively switching between one of the first listening mode for listening without wearing the earplug 1 and the second listening mode for listening with the earplug 1 worn. A child. The signal processing circuit of the driver unit has an equalizing function that can selectively output signals of at least two types of acoustic characteristics, and is selected by selecting the first or second listening mode with the mode switch. An electroacoustic signal having acoustic characteristics corresponding to the selected mode is generated. The wearing body has a watertight structure in which the inside is isolated from the outside. When the mounting body is mounted, the contact portions 3 of the left and right speaker units 2 are urged toward each other by the elastic force of the ear hooks.

  On the exposed end portion 1a of the earplug 1, a protruding portion 1A (5) protruding outward in the direction of insertion of the earplug 1 into the ear canal is formed. The protrusion 1A (5) protrudes from the end surface 1s on the side opposite to the insertion side of the earplug 1B. The shape of the protrusion 1A (5) is a columnar shape.

  The earplug 1 is formed by integrally molding a columnar earplug portion 1B and a protruding portion 1A. The earplug 1 is made of a foam material having both shape restoring properties and flexibility. As this type of material, polyurethane foam is known. The earplug 1 is attached to the ear canal by being inserted into the ear canal from the insertion side end face 1b side in a state where the earplug portion 1B is pinched with a finger and crushed into a thin shape. In the process of the earplug portion 1B returning to its original state (free state) due to its self-restoring property, the outer peripheral surface of the earplug portion 1B is in close contact with the inner surface of the ear canal over the entire circumference. By wearing the earplug 1, it is possible to keep the inside of the ear canal of the wearer in a quiet environment in which noise from the outside is blocked.

The contact portion 3 of the speaker unit 2 is formed with an annular fitting portion 6 that is detachably fitted to the protruding portion 1A (5).
The fitting portion 6 has a cylindrical through-hole 6 a that fits with a side portion (the outer peripheral portion of the exposed end portion 5) of the protruding portion 1 </ b> A (5) of the earplug 1.
The end surface 5a of the protrusion 1A (5) is visible from the outside of the fitting part 6 even when the fitting part 6 is fitted to the protrusion 1A (5).

  When the protruding portion 1A (5) and the fitting portion 6 are completely fitted to each other, the end surface 5a of the protruding portion 1A (5) and the end surface (outer surface) 6b of the fitting portion 6 are substantially flush with each other. The shape and size of the protrusion 1A (5) and the shape and size of the fitting portion 6 are selected so as to be located inside.

  This advertisement system (advertisement method) performs an advertisement by using the end face 5a of the protrusion 1A (5) as an advertisement display area. The end face 5a of the protrusion 1A (5) is provided with an advertiser's symbol mark, logotype, trademark, etc., such as a company or store that performs the advertisement. In this example, a symbol (symbol mark) 7 representing a star is attached. The symbol 7 is attached by some method such as printing, sticking a sticker, engraving, laser printing, or the like.

  According to this advertising system (advertisement method), since the end face 5a of the exposed end portion 5 of the earplug 1 is used for the advertisement display area, the advertisement can be effectively performed even when the earplug 1 is worn. it can. Further, even when the fitting portion 6 of the speaker unit 2 is fitted to the earplug 1, the end surface 5a of the exposed end portion 5 of the earplug 1 is visible, so that it is effective even when the wearing body is worn. Advertising can be done.

[Second embodiment]
In the advertising system (advertisement method) of the second embodiment, the acoustic device shown in FIGS. 7 to 9 is used. The configuration of the speaker unit 2 is the same as that of the first embodiment.
The earplug 11 of the second embodiment has a columnar earplug body 11B. The protrusion 11A (5) is a part (exposed end) of a member 12 (hereinafter referred to as a “decorative member”) that is harder than the ear plug 11B fixed to the end surface 11s of the ear plug 11B opposite to the insertion side. ). The decorative member 12 has a rod-shaped portion 12c that protrudes coaxially from the back surface of the protruding portion 11A (5).

  The decorative member 12 is manufactured using any one of plastic, elastomer, metal, glass, stone, wood, or bamboo. The protruding length of the decorative member 12 from the end surface 11s of the ear plug 11B is 3 mm to 12 mm.

  A cylindrical hole 11Bc extending from the non-insertion-side end surface 5a to the other end surface (insertion-side end surface) 11b side is formed at the center of the earplug body 11B. And the rod-shaped part 12c of the decoration member 12 is inserted densely in this hole 11Bc. The insertion side end portion 12d of the rod-shaped portion 12c is in contact with the bottom of the hole 11Bc.

  The earplug 11B is made of a foam material that has both shape recovery and flexibility. As this type of material, polyurethane foam is known. The earplug 11 is attached to the ear canal by being inserted into the ear canal from the insertion-side end face 11b side in a state where the earplug body 11B is pinched with a finger and crushed into a thin shape. In the process of the earplug body 11B returning to its original state (free state) due to its self-restoring property, the outer peripheral surface of the earplug body 11B closely adheres to the inner surface of the ear canal. By wearing the earplug 11, it is possible to keep the inside of the ear canal of the wearer in a quiet environment in which noise from the outside is blocked.

The end surface 5a of the protrusion 11A (5) is visible from the outside of the fitting part 6 even when the fitting part 6 is fitted to the protrusion 11A (5).
When the protruding portion 11A (5) and the fitting portion 6 are completely fitted to each other, the end surface 5a of the protruding portion 11A (5) and the end surface (outer surface) 6b of the fitting portion 6 are substantially flush with each other. The shape and size of the protrusion 11A (5) and the shape and size of the fitting portion 6 are selected so as to be located inside.

  This advertising system (advertisement method) performs an advertisement by using the end face 5a of the protrusion 11A (5) as an advertisement display area. The end face 5a of the protrusion 11A (5) is provided with an advertiser's symbol mark, logotype, trademark, etc., such as a company or store that performs the advertisement. In this example, a symbol (symbol mark) 7 representing a star is attached. The symbol 7 is attached by some method such as printing, sticking a sticker, engraving, laser printing, or the like.

According to this advertising system (advertisement method), since the end surface 5a of the exposed end portion 5 of the earplug 11 is used for the advertisement display area, the advertisement is performed, so that the advertisement can be effectively performed even when the earplug 11 is worn. it can. In addition, even when the fitting portion 6 of the speaker unit 2 is fitted to the earplug 1, the end surface 5a of the exposed end portion 5 of the earplug 11 is visible, so that it is effective even when the wearing body is worn. Advertising can be done.
Further, since the exposed end portion 5 of the earplug 11 is made of a member harder than the earplug body 11B such as plastic or hard rubber (elastomer), the earplug body 11B is deformed when the earplug 11 is worn. The end surface 5a of the exposed end portion 5 of the earplug 11, that is, the advertisement display area is not deformed (is difficult to deform). Therefore, the earplug 11 exhibits its function as an advertising medium even when worn.

[Third embodiment]
In the advertisement system (advertisement method) of the third embodiment, the acoustic device shown in FIGS. 10 and 11 is used.
The speaker unit 2 of the third embodiment has a C-shaped contact portion (contact body) 3 (substantially annular shape having a cutout portion 3a in part). Other configurations of the speaker unit 2 are the same as those in the first embodiment.

[Fourth embodiment]
In the advertising system (advertisement method) of the fourth embodiment, the audio device shown in FIGS. 12 and 13 is used.
The decorative member 12 of the earplug 21 of the fourth embodiment has an annular flange portion 22 at the base end portion of the projection 11A (5). The flange portion 22 is in contact with the end surface 11s of the earplug body 11B. The outer diameter of the flange portion 22 is selected to be slightly smaller than the outer diameter of the earplug 11B. The configuration of the speaker unit 2 is the same as that of the first embodiment.

[Other examples]
In the above example, when the protruding portion 5 and the fitting portion 6 are completely fitted to each other, the end surface 5a of the protruding portion 5 and the end surface (outer surface) 6b of the fitting portion 6 are substantially in the same plane. The shape and size of the projection 5 and the shape and size of the fitting portion 6 are selected so as to be positioned in the position, but when the projection 5 and the fitting portion 6 are completely fitted to each other The shape and size of the projection 5 and the shape and size of the fitting 6 may be selected so that the protruding end of the projection 5 protrudes from the outer surface of the fitting 6.

  In the above example, the end surface 5a of the protrusion 5 is a flat surface, but may be a curved surface (partially convex spherical surface, partially concave spherical surface, etc.).

  Further, in the above example, even in a state in which the fitting portion 6 is fitted to the projection portion 5, the fitting portion 6 is arranged so that the end surface 5 a of the projection portion 5 is visible from the outside of the fitting portion 6. Although the through hole 6a is provided, the protruding portion 5 is configured to be covered with the fitting portion 6, and a portion facing the end surface 5a of the protruding portion 5 of the fitting portion 6 is formed of a see-through member. Also good.

  In the above example, the earplugs 1 and 11 including the columnar earplug portion 1B or the earplug body 11B have been described. However, the earplug portion 1B or the earplug body 11B has a bullet shape (insertion side end). It may be a substantially cylindrical shape with a narrowed portion.

  In the above example, a piezoelectric vibration element such as a piezoelectric bimorph element or a piezoelectric unimorph element is used as the acoustic vibration generation source 4, but an electromagnetic or electrodynamic vibration generation source may be used.

  In the above example, the diameter of the protrusion 5 is about half the diameter of the earplug 11B (earplug 1B), but as shown in FIGS. 15 (a) and 15 (b). Both dimensions may be selected so that the diameter of the protrusion 5 is slightly smaller than the diameter of the earplug 11B (earplug 1B). Also, as shown in FIG. 16 (a), the diameters of both may be matched, and as shown in FIG. 16 (b), the diameter of the protrusion 5 is larger than the diameter of the earplug body 11B (earplug part 1B). Both dimensions may be selected so as to be slightly larger. FIG. 17 shows a state of use when the diameter of the protrusion 5 is made equal to the diameter of the earplug 11B (earplug 1B).

  In the above example, only the end surface 5a of the earplugs 1 and 11 is used for the advertisement display area. However, the end surface (outer surface) 6b of the fitting portion 6 is advertised together with the end surface 5a of the earplugs 1 and 11. It may be used for the display area. Moreover, the end surface 5a of the earplugs 1 and 11 and the end surface (outer surface) 6b of the fitting portion 6 can be used not only as an advertisement display region but also as a region for decoration. As a decoration method, there can be mentioned a method in which crystal glass or gemstone particles are arranged beautifully and fixed to the end faces 5a and 6b.

In addition, a plurality of types of seals for decorating the end surfaces 5a of the earplugs 1 and 11 (decorative seals, dressing seals, labels having a self-adhesive layer on the back surface), and a plurality of types for decorating the surface of the speaker unit 2. A system may be constructed that provides the user with some type of seal. According to this system, individual users can enjoy the decoration by sticking a seal with a design that suits their preference to the earplugs 1, 11 and the speaker unit 2.
Further, a system for supplying a user with a sheet in which a decorative seal for the earplugs 1 and 11 and a decorative seal for the speaker unit 2 are set may be constructed. Examples of sheets are shown in FIGS. 18, 19, 20 and 21. FIG. The four seals in the upper half of these sheets are decorative seals that are affixed to the end surfaces 5a of the earplugs 1 and 11, and the four seals in the lower half are affixed to the fitting portion 6 of the speaker unit 2 (FIG. 1). It is a decorative sticker attached.
Note that the symbol marks and logotypes shown in FIG. 18 are registered trademarks of Nike Corporation (Nike Inco., Ltd.). The symbol mark and logotype shown in FIG. 19 are registered trademarks of Speed Inc. (Speed Holdings BV). The symbol mark and logotype shown in FIG. 20 are registered trademarks of Mitsuno Corporation. The symbol marks and logotypes shown in FIG. 21 are registered trademarks of Adidas (Adidas AG).

[effect]
The audio device of this advertisement system (advertisement method) is in a state in which the earplugs 1 and 11 are attached to the external ear canal and the fitting portion 6 of the speaker unit 2 is fitted to the protruding portion 5 of the earplugs 1 and 11. Since it is configured to be used, the earplugs 1 and 11 and the speaker unit 2 are always kept in a good (normal) contact (connected) state during listening, and vibration of the fitting portion 6 of the speaker unit 2 is high. Efficiently transmitted to the earplugs 1 and 11. Therefore, this acoustic device can always exhibit good listening performance.

  The sound device of this advertisement system (advertisement method) applies vibration to the earplugs 1 and 11 while keeping the inside of the user's external auditory canal in a quiet environment where the external noise is blocked by the earplugs 1 and 11. You can listen to the sound. Therefore, this acoustic device can exhibit extremely high listening performance even under high noise.

  The audio device of this advertising system (advertising method) includes earplugs 1 and 11 that can block the outer ear canal in a water-tight manner, and the mounting body has a water-tight structure. For example, it can be used even in an environment that gets wet. Since the earplugs 1 and 11 and the mounting body are completely separated from each other, even when the mounting body is detached from the head during use of the acoustic device, the earplugs 1 and 11 are caused by this. It's safe because it doesn't fall out of it. That is, the earplugs 1 and 11 attached to the external auditory canal continue to exhibit their original functions (sound insulation function and waterproof function) even when the attached body is removed. Therefore, this acoustic device can also be used during swimming and surfing.

  The acoustic device of this advertisement system (advertisement method) generates vibrations at all in the earplugs 1 and 11 when the wearing body is not worn, that is, when the earplugs 1 and 11 and the speaker unit 2 are not in contact with each other. Only the contact part 3 of the speaker unit 2 vibrates. Even when the wearing body is detached during use, there is no sound that is loud enough to cause discomfort to surrounding people. Therefore, this acoustic device is suitable for use in public vehicles such as passenger planes and passenger trains.

  By supplying such a high-performance acoustic device, the spread of the earplugs 1 and 11 as its constituent elements is promoted, so that it is effective to use the earplugs 1 and 11 as an advertising medium for advertising. The nature will naturally increase.

  The audio device of the advertisement system (advertisement method) of the present invention can be used for a hearing aid. That is, a microphone, a driving circuit (including an amplifier circuit, a filter circuit, and the like) that drives an acoustic vibration generation source according to an output signal of the microphone, a battery, a volume controller (output volume controller), By adding the above, it is possible to realize a hearing aid that is compact and lightweight, has a very good wearing feeling, and exhibits extremely high listening performance even under high noise. Therefore, according to the present invention, it is also possible to realize an advertising system (advertisement method) using a hearing aid.

(A) is a front view of the speaker unit (b) is a side view of the speaker unit (c) is a bottom view of the speaker unit (d) is a top view of the speaker unit Earplug perspective view (A) Front view of earplug (b) Side view of earplug (c) Rear view of earplug (A) is a front view of a state in which the earplug and the speaker unit are fitted. (B) is a side view of a state in which the earplug and the speaker unit are fitted. Sectional view of the earplug and speaker unit in a non-fitted state Sectional view of the earplug and speaker unit fitted (A) Front view of earplug (b) Side view of earplug (c) Rear view of earplug Sectional view of the earplug and speaker unit in a non-fitted state Sectional view of the earplug and speaker unit fitted (A) Front view of speaker unit (b) Side view of speaker unit Side view of the earplug and speaker unit in a fitted state (A) Front view of earplug (b) Side view of earplug (c) Rear view of earplug Sectional view of the earplug and speaker unit fitted Side view of acoustic device in use (A) is a perspective view of an earplug (b) is a perspective view of an earplug (A) is a perspective view of an earplug (b) is a perspective view of an earplug Side view of acoustic device in use Top view of a sheet with a decorative seal for earplugs and a decorative seal for speaker units Top view of a sheet with a decorative seal for earplugs and a decorative seal for speaker units Top view of a sheet with a decorative seal for earplugs and a decorative seal for speaker units Top view of a sheet with a decorative seal for earplugs and a decorative seal for speaker units

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ear plug 1A Protrusion part 1B Ear plug part 1a Anti-insertion side end part 1s Anti-insertion side end surface 2 Speaker unit 2A Unit main body 3 Contact part (contact body)
4 Acoustic vibration source 5 Protrusion (exposed end)
5a End face (advertising display area)
6 Fitting part 6a Through hole 6b End face (outer face)
7 Design 11 Earplug 11A Protrusion 11B Earplug body 12 Decoration member (standard part)
21 Earplugs

Claims (4)

Earplugs attached to the user's ear canal;
A contact body that comes into contact with and separates from an end portion (exposed end portion) that is exposed from the ear hole when the earplug is worn;
An advertisement system for performing an advertisement using an acoustic device having an acoustic vibration source that vibrates the contact body,
The contact body is formed with an annular or substantially annular fitting portion that is detachably fitted to the exposed end portion,
An advertising system in which the end face of the exposed end portion is visible from the outside of the fitting portion even in a state where the fitting portion is fitted to the exposed end portion, and the end face is used as an advertisement display area. . An advertising system that uses the end face exposed from the ear canal when wearing an earplug attached to a user's ear canal to perform an advertisement,
The earplug has a columnar shape or a substantially cylindrical earplug portion having a narrow insertion side end portion, and a columnar shaped portion provided at a non-insertion side end portion of the earplug portion. An advertising system that has an end surface of the fixed part and uses it in an advertisement display area Earplugs attached to the user's ear canal;
A contact body that comes into contact with and separates from an end portion (exposed end portion) that is exposed from the ear hole when the earplug is worn;
An advertisement method for performing an advertisement using an acoustic device having an acoustic vibration source that vibrates the contact body,
The contact body is formed with an annular or substantially annular fitting portion that is detachably fitted to the exposed end portion,
An end face of the exposed end portion is visible from the outside of the fitting portion even in a state where the fitting portion is fitted to the exposed end portion, and the end face is used for an advertisement display area. . An advertising method in which an end surface exposed from the ear canal is worn in an advertisement display area when wearing an earplug attached to a user's ear canal,
The earplug has a columnar shape or a substantially cylindrical earplug portion having a narrow insertion side end portion, and a columnar shaped portion provided at a non-insertion side end portion of the earplug portion. An advertisement method comprising: using an end face of the fixed portion for an advertisement display area.