JP2003000343A - Rucksack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rucksack which is equipped with a speaker system to create clear sound naturally and clearly audible from electric audio equipment and audible together with environmental noise for a rucksack shouldering person around both ears without using headphones or earphones. SOLUTION: A speaker unit 4 to radiate a plane wave toward both ears or the vicinity of both ears of a rucksack shouldering person is placed on the shouldering belt 4 of this rucksack 1. The speaker unit 4 is connected to music playback equipment, etc., housed in a housing part of the rucksack 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rucksack provided with a speaker that creates a sound field in which a person wearing the rucksack can naturally hear both sound from an audio device and environmental noise (ambient noise).

[0002]

2. Description of the Related Art Regarding rucksacks, various proposals have been made to improve the materials, forms, functions, etc. of the rucksack body 2 and attached members in response to diversification of uses, purposes, modes of use, etc. (Patent No. 2602780)
No. 2668094, JP-A-07-32729.
No. 0 publication etc.).

However, a proposal for adding a function other than the storage of articles (in particular, acoustic function) to the backpack is as follows.
Little has been done, and rucksacks with acoustic functions that are useful for rucksack wearers have not been put to practical use.

Therefore, in order for a backpack wearer to listen to music while walking, climbing or the like, it is common to carry a CD player (Compact Disk Player) or the like in a pocket of clothes and listen through headphones or earphones. Target.

Although there has been proposed an acoustic sensor which carries a large cone-shaped speaker on its back and transmits air vibrations of the speaker directly to the back (Japanese Patent Laid-Open No. 07-3107).
(See Japanese Patent No. 27290), the physical strength and physiology of the body make it impractical, and it remains at the mere idea stage.

[0006]

Conventionally, there is no idea that a rucksack has an acoustic function,
Moreover, since the acoustic function of the rucksack has not been examined, the conditions of the sound and the sound field that allow the person wearing the rucksack to hear optimally during sports outdoors or walking in the city are unknown. Therefore, the acoustic system for a rucksack that satisfies such conditions was unknown.

Therefore, the present inventor has studied in detail the conditions of the sound and the sound field and the acoustic system for the rucksack which satisfies the conditions, and the rucksack of the present invention was devised.

The rucksack according to the present invention is intended for the following (a) to (c). (A) The present invention makes the sound from the electro-acoustic device natural (that is, without using headphones or earphones).
An object of the present invention is to provide a rucksack including a speaker system that creates a sound field that can be clearly heard and that can also clearly hear environmental noise around both ears of the backpack wearer 30. (B) It is also an object of the present invention to provide a backpack in which the function of the above (a) is exhibited by a speaker system even if the backpack has various forms. (C) Another object of the present invention is to provide a backpack in which a user wearing the backpack can exhibit the function of (a) by a speaker system even in various activity situations.

[0009]

According to a first aspect of the present invention, there is provided a rucksack having a structure in which the backpack main body is carried by a shoulder belt and the sound output from the backpack is provided to the backpack wearer. A speaker that reaches the ear, a rucksack body, and a housing portion that is provided on at least one of the rucksack constituent members connected to the rucksack body and that houses the acoustic signal generator connected to the speaker. It is characterized by being.

Next, the operation of the rucksack according to claim 1 will be described.

In the rucksack according to the first aspect of the present invention, the acoustic signal generating device can be housed in the housing provided in at least one of the rucksack body and the rucksack constituent member connected to the rucksack body.

When the speaker provided on the shoulder belt is connected to the acoustic signal generator and the acoustic signal output from the acoustic signal generator is input to the speaker, sound is output from the speaker and the sound output from the speaker is the backpack. Reach the ear of the sack wearer.

The rucksack constituting member may be any member as long as it constitutes a rucksack together with the rucksack body, such as a shoulder strap and a waist strap.

Further, the storage part may be detachably provided to the rucksack body or the rucksack constituent member.

The invention described in claim 2 is the rucksack according to claim 1, wherein the speaker is a flat speaker having a flat diaphragm.

Next, the operation of the backpack according to the second aspect will be described.

In the rucksack according to the second aspect of the present invention, since the speaker is a flat speaker having a flat diaphragm, the diaphragm vibrates to radiate a plane wave.

The invention according to claim 3 is the rucksack according to claim 1 or claim 2, characterized in that the speaker is provided so as to be movable along the shoulder belt.

Next, the operation of the rucksack according to claim 3 will be described.

In the rucksack according to the third aspect, the speaker can be moved along the shoulder belt.

Therefore, the position of the speaker can be adjusted so that the sound output from the speaker reaches the ear or the vicinity of the ear.

The invention described in claim 4 is the rucksack according to any one of claims 1 to 3, wherein:
A bass speaker having a diaphragm having a larger area than the diaphragm of the speaker provided on the shoulder belt is provided as at least one of the rucksack body, the shoulder belt, and a rucksack component connected to the rucksack body. The feature is that it is provided.

Next, the operation of the rucksack according to the fourth aspect will be described.

Since the bass speaker has a diaphragm having a larger area than the diaphragm of the speaker provided on the shoulder belt, it is possible to reproduce a sound having a lower frequency than that of the speaker provided on the shoulder belt.

The invention described in claim 5 is the rucksack according to any one of claims 1 to 4, wherein:
The shoulder belt is provided with means for accommodating or holding a control device of the acoustic signal generator.

Next, the operation of the backpack according to the fifth aspect will be described.

In the rucksack according to the fifth aspect, since the means for accommodating or holding the control instrument of the acoustic signal generator is provided on the shoulder belt which is easily accessible, the operability of the control instrument is improved.

The invention described in claim 6 is the rucksack according to any one of claims 1 to 5, wherein:
The shoulder belt is provided with a means for storing or holding a microphone.

Next, the operation of the backpack according to the sixth aspect will be described.

Acoustic signal generators, especially wireless telephones and the like, are equipped with a microphone.

In the rucksack according to the sixth aspect of the invention, the means for accommodating or holding the microphone is provided on the easily accessible shoulder strap, so that the operability of the microphone is improved.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a rucksack according to the present invention will be described with reference to FIGS.

Although the backpack shown in FIGS. 1-7 is a preferred embodiment of the present invention, it is only an illustration of some of the various embodiments encompassed by the present invention.

It should be noted that, in FIGS. 1 to 7, those denoted by the same reference numerals indicate the same or equivalent components. <Whole rucksack> Figure 1
It will be described with reference to FIG.

FIG. 1 is an explanatory view showing the back of the rucksack,
2 is an explanatory view showing the front of the backpack, FIG. 3 is an explanatory view showing the front of the backpack wearer, and FIG. 4 is an explanatory view showing the side surface of the backpack wearer.

As shown in FIGS. 1, 3 and 4, the rucksack 1 has a basic form having a rucksack body 2 and a shoulder belt 3 provided on the back surface thereof.

In the shoulder belt 3, the speaker unit 4 for radiating a plane wave is arranged in a region corresponding to both shoulders of the rucksack wearer 30 with the diaphragm facing upward.
The rucksack wearer 30 is able to listen to the plane wave that is radiated from directly below and reaches or passes through the ears or the vicinity of the ears.

The speaker unit 4 is electrically connected to the acoustic signal generator 22 housed in the housing portion 21 of the rucksack body 2 shown in FIG.

A volume controller or the like may be provided in the middle of the wiring connecting the acoustic signal generator 22 and the speaker unit 4.

The speaker unit 4 utilizes the characteristics of a plane wave (the wavefront in which a sound wave propagates is a parallel surface), that is, the sound pressure maintaining property, the distant transmitting property, the straight traveling property, the high directivity, and the like, as shown in FIG.
The effect of the present invention can be enjoyed by arranging it at a place other than those shown in FIGS. 3 and 4 (details of the speaker unit 4 will be described later).

The shoulder belt 3 is advantageous in the present invention in relation to various conditions such as the speaker unit 4, the storage portion for the shoulder belt equipment, the rucksack body 2, and the load on the rucksack wearer 30. The shape and structure are suitable for enjoying.

Therefore, the shoulder belt 3 can be in the form of continuous strips other than those shown in FIG. 1 or in a form other than the continuous strip (for example, an independent form dedicated to the left and right shoulders), and various forms and structures. Can be provided.

However, the continuous belt-shaped shoulder belt 3 is
Positioning of the speaker unit 4 is easy. <Speaker and its Arrangement> The speaker unit 4 of the present embodiment will be described with reference to the drawings.

FIG. 5 is an exploded perspective view of the speaker unit 4,
FIG. 6 is a sectional view of the speaker unit 4, and FIG. 7 is an explanatory view of the speaker unit 4 embedded in the shoulder belt 3.

As shown in FIG. 7, the speaker unit 4 is embedded inside the shoulder belt 3.

The speaker unit 4 is, for example, PCT /
What is called a multi-cell flat speaker described in JP 00/03755 and the like can be used, and there are various sizes, but all of them are targets for use.

As shown in FIGS. 5 and 6, the speaker unit 4 used in this embodiment includes a yoke 50 formed of a plate-like member made of a magnetic material.

In the magnet fixing portion 50A of the yoke 50, four flat magnets formed in a square shape are provided with four permanent magnets 52 of different polarities alternately positioned so that the magnetic pole surfaces face upward in the figure. They are fixedly arranged with a predetermined gap provided by adhesion.

On the upper surface side of the yoke 50, a diaphragm 54 is arranged in close proximity to the magnetic pole surface of the permanent magnet 52, that is, parallel to the upper surface of the yoke 50.

An outer peripheral edge of a rectangular frame body 58 is fixed to the diaphragm mounting portion 50B of the yoke 50 with a spacer 56 made of paper or the like interposed.

An edge 60, which is an elastic portion having a semicircular arc shape in cross section, is continuously formed along the outer peripheral edge of the frame 58.

The diaphragm 5 is provided on the inner peripheral edge side of the frame 58.
The outer peripheral edge of 4 is adhered.

The diaphragm 54 has a spiral coil 62 corresponding to each of the permanent magnets 52.
Individually arranged.

Each coil 62 is formed so as to be spirally wound so as to be substantially similar to the outer edge of the permanent magnet 52.

A magnetic flux oriented in a direction substantially parallel to the film surface of the diaphragm 54 is linked to each coil 62.

When a current is passed through the coil 62, the diaphragm 54 receives a force in a direction perpendicular to the film surface of the diaphragm 54.
Is displaced in the direction perpendicular to the film surface.

Therefore, by energizing the coil 62 with an electric signal representing the sound to be generated, the diaphragm 54
Vibrates in response to this electric signal.

In this speaker unit 4, plane waves are radiated from the coils 62 of the diaphragm 54 in the same phase, and a synthetic plane wave obtained by synthesizing the plane waves is radiated from the entire diaphragm 54.

Further, as shown in FIG. 7, the shoulder belt 3
On the front surface of the speaker unit 4 embedded inside the speaker unit, a punching metal (a magnetic metal plate having innumerable small holes) 55 for magnetic shielding and protection of the diaphragm 54 is located at a constant distance from the diaphragm 54. It is arranged. <Accommodating Section of Rucksack Main Body> FIG. 2 shows the inside of the accommodating section 21 (which is a dedicated accommodating pocket) by opening the fastener 20 at the rear of the rucksack main body 2.

The housing portion 21 of the rucksack body 2 is a device 22 for generating an acoustic signal using the speaker unit 4 as a sound source.
Alternatively, as long as it can be stored in a state in which the device configuring the same can function, the form (for example, a dedicated storage pocket or the like), the number and the place of arrangement are arbitrary.

The sound signal generating device 22 is a device for generating a sound signal for using the speaker unit 4 as a sound source, and is, for example, a CD player (Compact D).
desk player, cassette tape player, MD player (MiniDisk Playe)
r) and an audible signal (audio signal) reproducing device of a recording medium such as an MP-3 player, a wireless receiver (radio receiver) and a wireless device such as a wireless telephone.

The accommodating portion 21 of the rucksack main body 2 typically accommodates the acoustic signal generating device 22, but it may also accommodate a device (eg, a driving portion) that constitutes it.

In the storage portion 21 of the rucksack body 2,
An amplifier (not shown) and the like may be housed together with the acoustic signal generator 22 as described above.

A connection tool (so-called connector) (not shown) is connected to the end of the wiring connected to the speaker unit 4, and the connection tool is arranged in the housing section 21.

Therefore, in the storage section 21, the acoustic signal generator 22 stored by the rucksack wearer 30 is stored.
And the speaker unit 4 can be connected.

Here, an amplifier may be connected to the acoustic signal generator 22 and the connector of the storage section 21 may be connected to the output terminal of the amplifier, and the device connected to the connector of the storage section 21 may be an acoustic device. It is not limited to the signal generator 22 and the amplifier.

For example, if the output of the amplifier built in the acoustic signal generating device 22 is large, the acoustic signal generating device 22 and the connecting member of the storage section 21 may be directly connected to each other. If the output of the amplifier is small,
The acoustic signal generator 22 may be connected to the connector via a separate amplifier.

In this embodiment, the acoustic signal generator 22 housed inside the housing 21 is connected to the connector via an amplifier.

The acoustic signal generator 22 is a remote controller 11 for operating the acoustic signal generator 22.
It is also connected to the wiring that connects to with another connecting tool.

The storage portion 21 of the rucksack body 2 can be provided inside or outside the rucksack body 2, and the opening portion can be used as a dedicated storage pocket or the like which can be opened and closed by opening and closing means such as a fastener. Then, the convenience of the rucksack wearer 30 is secured.

Equipment of the acoustic signal generator 22, for example, a recording medium (eg, CD, MD, semiconductor memory,
It is preferable that the rucksack body 2 be provided with a storage portion (particularly, a dedicated storage pocket) for individually, classifying, or collecting the cassette tape) and the main and spare batteries and batteries.

It is preferable that the storage portion in which the equipment is stored individually or classified is provided in a layout suitable for the convenience and ergonomics of the wearer 30 of the rucksack.

The storage portion for the equipment may be arranged inside or outside the rucksack body 2, but the storage portion for the equipment which is frequently used may be arranged outside the rucksack body 2. preferable. <Shoulder belt> Shoulder belt 3 is for convenience of operation.
For example, it is preferable to provide a means for accommodating or holding a control device such as a power switch, a volume adjusting tool of the acoustic signal generator 22, and a remote controller.

The control device storage means is, for example, a dedicated pocket for storing the remote controller 11 when not in use.

The holding means of the control device is, for example, a locking tool such as a belt or a clip that can lock the remote controller 11.

Further, the shoulder belt 3 may be provided with means for accommodating or holding a device other than the control device, for example, a microphone connected to a wireless device such as a mobile phone or a transceiver.

The means for accommodating the microphone is, for example, a dedicated pocket for accommodating the microphone when not in use.

The term “holding the microphone” means, for example, a locking tool such as a belt or a clip that can lock the microphone.

A plurality of types of acoustic signal generators 22 may be stored in the storage section 21.

When a plurality of types of acoustic signal generators 22 are accommodated and each acoustic signal generator 22 has a remote controller, these remote controllers are individually classified or aggregated into the shoulder belt 3.
It is preferable to secure the convenience of operation by the rucksack wearer 30.

Further, the shoulder belt 3 can also be used for housing the wiring by, for example, incorporating a wiring or the like that prosperses the acoustic signal generator 22 and other devices.

By the way, the speaker unit 4 and the storage section 2 are
The wiring for connecting to the connection tool provided in 1 is built in the shoulder belt 3 so as not to be seen from the outside.

The storage portions provided on the rucksack body 2 and the shoulder belt 3 are arbitrary in the number, arrangement and form when the convenience of use of the rucksack wearer 30 is ensured. (Operation of the rucksack of the present embodiment) In the rucksack body 2 of the rucksack 1 shown in FIG. 1, the strap 5 provided on the shoulder belt 3 and the fixing strap 6 extending from the bottom are adjusted in length by the connecting tool 7. Then, the shoulder belt 3 is vertically fastened to the front surface of the body of the rucksack wearer 30 and carried on the back.

The shoulder belt 3 around the waist can be tightly fastened to the waist of the rucksack wearer 30 by fastening the waist strap 8 with the buckle 9.

Furthermore, by adjusting the length of the diagonal strap 10 on the front surface of the body of the rucksack wearer 30, the shoulder belt 3 can be fastened to the front surface of the body of the rucksack wearer 30.

Therefore, the rucksack wearer 30 can wear the rucksack 1 on his body and use it for various activities outdoors and in the city.

The shoulder belt 3 shown in FIGS.
In the figure, the remote controller 11 and the like are not provided with a storage unit for control tools.

FIGS. 3 and 4 show a backpack wearer 3
0 indicates a state in which the shoulder belt 3 is tightly fastened to the entire body and the rucksack body 2 is carried on the back.

Rucksack wearer 30 of FIGS. 3 and 4
Is a plane wave (see the arrow in FIG. 4) that travels straight upward from the speaker unit 4 arranged in the region directly below both ears, and simultaneously advances and propagates in the lateral and front-back directions. You will hear the environmental noise coming from both ears simultaneously.

Therefore, even when the user wears the rucksack 30 while walking in the city where the environmental noise is large, he or she can listen to traffic signals such as voices necessary for walking and listen to desired music. .

In particular, the speaker unit 4 is arranged at a position close to the ear of the rucksack wearer 30 and outputs a plane wave excellent in straightness. You can hear the sound clearly.

Further, the speaker unit 4 of the present embodiment
Since it has a flat diaphragm 54, it can be formed thinner than a speaker unit having another structure such as a cone speaker unit, and can be easily embedded in the shoulder belt 3 having a relatively thin thickness.

FIG. 8 is an explanatory view showing the straightness of a plane wave (including a composite plane wave).

The main body of the sound flux by the plane wave is the sound flux main body 64 (hatched portion), but in effect, a diffusion region 66 in which the sound wave spreads outward is generated.

The angle α of the plane wave diffusion region 66 (α: the angle with respect to the perpendicular line HL of the diaphragm 54. The diffusion region means
The sound pressure decreases by 3d with respect to the sound pressure measured on the vertical line HL.
Area within B. The sound pressure is measured at a constant distance from the sound generation area. ), It becomes difficult to create a clearly audible sound field when it becomes large.

Although it is difficult to define the angle α of the diffusion region 66 by a strict numerical value, it is suitable that the angle α is within 30 degrees (preferably within 25 degrees).

The speaker unit 4 is not limited in the number and arrangement of the speaker units 4 as long as it can radiate a plane wave to the ears of the rucksack wearer 30 or to the vicinity of the ears.

Further, the speaker unit 4 may be arranged on the shoulder belt 3 so that the plane wave is radiated in a direction other than the directions of the both ears or the vicinity of the both ears, for example, the front of the wearer 30 of the rucksack.

Further, in the speaker unit 4, the number and arrangement shape of the coils 62 are not limited to those in the above-mentioned form as long as the plane wave can be generated.

In the speaker unit 4, each coil 62 can be electrically independent and each coil 62 can be supplied with a different electric signal.
It is also possible to radiate different sounds from each coil 62 portion of the diaphragm 54.

For example, a shape in which one speaker unit 4 is arranged behind the neck of the backpack wearer 30 and the plane wave radiation surface thereof is directed toward both ears of the backpack wearer 30 (that is, two directions), For example, by bending the long speaker unit 4 as shown in FIG. 9,
With one speaker unit 4, it is possible to produce the same effect as that of disposing two speaker units 4.

Incidentally, in FIG. 9, the arrow indicates the radiation direction of the plane wave.

The speaker unit 4 is not limited to the one having the above structure, and a known speaker that radiates a plane wave can be used, and a speaker having a new structure for outputting a plane wave may be designed and manufactured and used. .

The speaker unit 4 is a rucksack 1
When using the, is typically fixedly provided in a predetermined position so that the plane wave is radiated toward the ears of the rucksack wearer 30 or in the vicinity of the ears, but it may be detachably or movably provided. It is also possible to fix the rucksack in place when using it.

FIG. 10 shows a backpack 1 in which the speaker unit 4 is movably provided.

A speaker housing member 7 is attached to the shoulder belt 3.
0 is provided slidably.

As shown in FIG. 11, the speaker housing member 7
0 is a cloth main body 72 with the speaker unit 4 built-in.
And a cloth belt 74 integrally provided on the main body 72.

The belt 74 includes a first belt member 74A extending from one end side of the main body 72 and a second belt member 74B extending from the other end side of the main body 74 and partially overlapping the first belt 74A. ing.

The vicinity of the tip of the first belt member 74A is bent and sewn to the intermediate portion of the second belt member 74B, and the shoulder belt 3 is provided between the main body 72 and the belt 74.
Is inserted.

Further, a part of the outer surface of the first belt member 74A and a part of the inner surface of the second belt member 74B are
Velcro tape 76 (velcro fastener) is attached, and when the Velcro tapes 76 are separated from each other, the belt 74
Is loosened, and the speaker storage member 70 can be easily moved along the shoulder belt 3.

When the second belt member 74B is pulled in the direction of arrow A to tighten the belt 74 and the velcro tapes 76 are attached to each other, the speaker housing member 70 is fixed to the shoulder belt 3.

A speaker fixing member 78 is embedded in the main body 72. The material of the speaker fixing member 78 is, for example, urethane foam, synthetic resin, rubber or the like, and any material can be used as long as it can fix the speaker unit 4.

A counterbore 80 is formed on the speaker fixing member 78, and the speaker unit 4 is attached to the counterbore 80.
Is installed.

Further, the speaker unit 4 is provided on the main body 72.
A punching metal 82 for magnetic shielding and protection of the diaphragm 54 is arranged at a constant distance from the diaphragm 54 on the front side of the, and a net 84 for preventing sand and dust is further arranged on the front side of the punching metal 82. There is.

Depending on the body shape of the rucksack wearer 30 and the positions of the rucksack body 2 and the shoulder belt 3, the speaker unit 4 may be replaced by the rucksack wearer 30.
It may not be suitable for the ear or near the ear.
As shown in 0, since the position of the speaker housing member 70 can be changed along the shoulder belt 3, the speaker unit 4
Can be directed to the ears of the rucksack wearer 30 or near the ears.

Further, the speaker housing member 70 can be arranged on the front side of the rucksack wearer 30, and the plane wave from the speaker unit 4 can be emitted to the front of the rucksack wearer 30.

For example, if a microphone and an amplifier are connected to the speaker unit 4, it can be used as a loudspeaker.

12 and 13 show a rucksack 1 of another form in which the speaker unit 4 is movably provided.

The same components as those of the rucksack 1 shown in FIGS. 10 and 11 are designated by the same reference numerals, and their description will be omitted.

A rail 86 having a substantially C-shaped cross section, which is made of synthetic resin or the like, is embedded in the shoulder belt 3 along the longitudinal direction.

A slide member 88 having a substantially T-shaped cross section is slidably fitted on the rail 86.

The main body 72 (the belt 74 is removed) of the speaker housing member 70 shown in FIG. 11 is attached to the slide member 88 via a plate member 90.

For the slide member 88 and the shoulder belt 3,
Velcro tapes 76 (face fasteners) are attached to each, and when the Velcro tapes 76 are separated from each other, the main body 72 including the speaker unit 4 can easily move along the shoulder belt 3.

When the Velcro tapes 76 are attached to each other, the main body 72 containing the speaker unit 4 is fixed to the shoulder belt 3.

FIG. 14 shows a rucksack 1 of another form in which the waist strap 8 is provided with an active subwoofer 92.

As shown in FIG. 14, the active subwoofer 92 comprises a speaker unit 4, an amplifier (not shown), and another power source (battery).

The diaphragm 96 of the speaker unit 94 used in the active subwoofer 92 is the diaphragm 54 of the speaker unit 4 provided on the shoulder belt 3.
It has a larger area and is superior in bass reproduction capability.

A low-pass filter (not shown) that passes only low-frequency acoustic signals is provided between the acoustic signal generator 22 and the amplifier of the active subwoofer 92, or between the amplifier and the speaker unit 94. Is provided.

By further adding such an active subwoofer 92, it becomes possible to enjoy music more comfortably.

Although the active subwoofer 92 is provided on the waist strap 8 here, the present invention is not limited to this. It may be provided on a member constituting the rucksack 1. <Backpack> Rucksack (Rucksack,
Ruck-sack is a German word for the back (R
(corresponding to ack) and the German word for bag, which means "packing bag for packing food / equipment". From the beginning, rugsack, look backpack, backpack and backpack have been used as synonyms. , It may be specified by another term (edited by the Japanese University Dictionary Publishing: “Encyclopedia of Japanese Language”, Volume 20, published in 1976, Shogakukan, etc.).

Even if the rucksack is specified by another name, all of the structures in which the storage main body is carried on the back by the shoulder belt are treated as belonging to the rucksack.

The "rucksack" of the present invention is also used in a broad sense (that is, a structure in which the storage main body is carried on the back by the shoulder belt), and the rucksack, look backpack, backpack, backpack, backpack,
It is used in a sense that includes dayback, knapsack, attack back, and the like.

The rucksack of the present invention is not limited in its size, shape, etc., and has only the function of accommodating the acoustic signal generator 22 and the function of accommodating / carrying articles.

The rucksack of the present invention includes various concrete examples other than the above-mentioned examples, some of which will be illustrated below. (A) The speaker unit 4 is arranged so as to be inclined with respect to the shoulder belt 3, and the rucksack wearer 30
A configuration in which a plane wave is radiated in the vicinity of both ears may be used. (B) The shoulder belt 3 may have a structure with a built-in shoulder pad. (C) The shoulder belt 3 has a speaker unit 4 having an arrangement region having shape retention (for example, shape retention of a hard plastic molded body).
However, the rucksack wearer 30 may be configured to be accurately positioned with respect to both ears. (D) The shoulder belt 3 may be wide or narrow. (E) The rucksack body 2 and the shoulder belt 3 are
It may be formed of a material other than a waterproof cloth material. (F) The original article storage mechanism of the rucksack body 2 can have an arbitrary storage area. (G) A part or most of the rucksack body 2 may be made of a material other than cloth, for example, a molded body of a light hard material (for example, plastic molded body, FRP, metal molded body, etc.).

The present invention is in accordance with the object of the present invention, and modifications or partial alterations and additions of the present invention are optional unless the effects of the present invention are particularly impaired. It is the scope of the present invention.

[0136]

According to the rucksack according to the present invention,
Various effects represented by the following (i) to (v) can be obtained. (I) The rucksack wearer can clearly hear the sound of the souker in a natural state without using headphones or the like, and can also hear the ambient environmental sound in the same sound field naturally and clearly. (Ii) The utility value of the rucksack used in various outdoor activities such as mountain climbing and hiking is significantly improved. (Iii) The utility value of a rucksack used in a city where traffic volume and noise are both severely improved. (Iv) A rucksack to which a new acoustic function is added can be obtained without being restricted by the structure and form of the rucksack. (V) The original function of the rucksack (that is, the function of accommodating articles and the like) is retained, and the applications of the rucksack can be diversified.

In the rucksack according to the second aspect, since the speaker is a flat speaker having a flat diaphragm, the rucksack can be easily embedded in a thin shoulder belt. Further, the sound can be clearly transmitted to the ear of the user wearing the rucksack without raising the volume.

In the rucksack according to the third aspect, since the position of the speaker can be adjusted, the speaker can be placed in the ear of the person wearing the rucksack regardless of the figure of the person wearing the rucksack or the position where the rucksack is attached. Or it can be aimed near the ears.

With the rucksack according to the fourth aspect, it becomes possible to hear a sound having a lower frequency than that which cannot be reproduced by the speaker of the shoulder belt.

In the rucksack according to the fifth aspect, the operability of the control device is improved.

In the rucksack according to the sixth aspect, the operability of the microphone is improved.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a back surface of a rucksack.

FIG. 2 is an explanatory view showing the front of the rucksack.

FIG. 3 is an explanatory view showing the front of the wearer of the backpack.

FIG. 4 is an explanatory diagram showing a side surface of a rucksack wearer.

FIG. 5 is an exploded perspective view of a speaker unit.

FIG. 6 is a cross-sectional view of a speaker unit.

FIG. 7 is an explanatory diagram showing a speaker arranged on a shoulder belt 3.

FIG. 8 is an explanatory diagram showing straightness of a plane wave.

FIG. 9 is a perspective view of a speaker unit according to another embodiment.

FIG. 10 is an explanatory view showing a back surface of a rucksack according to another embodiment.

FIG. 11 is a cross-sectional view of a speaker housing member.

FIG. 12 is an explanatory view showing a back surface of a rucksack according to still another embodiment.

FIG. 13 is a cross-sectional view of a speaker storage member and a shoulder belt.

FIG. 14 is an explanatory view showing a back surface of a rucksack according to still another embodiment.

[Explanation of symbols]

1 rucksack 2 rucksack body 3 shoulder belt 4 speaker unit 5 straps 6 straps 7 connector 8 waist straps 9 buckles 10 diagonal strap 20 fasteners 21 Storage 22 Acoustic signal generator 23 Storage 30 Rucksack wearers 94 speaker unit (bass speaker)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koji Matsunaga             8-3-20 Shakujidai, Nerima-ku, Tokyo F-term (reference) 2E181 BC01                 5D017 AC16 BB16

Claims (6)

[Claims] 1. A rucksack having a structure in which the backpack main body is carried on a shoulder belt, the speaker being provided on the shoulder belt and allowing the output sound to reach the ear of the wearer of the rucksack, the backpack main body, and the backpack. A rucksack provided with at least one of the rucksack constituent members connected to the sacks body, and a housing section for housing an acoustic signal generator connected to the speaker. 2. The rucksack according to claim 1, wherein the speaker is a flat speaker having a flat diaphragm. 3. The rucksack according to claim 1, wherein the speaker is provided so as to be movable along the shoulder belt. 4. A low frequency speaker having a diaphragm having an area larger than that of a speaker provided on the shoulder belt, a rucksack body, the shoulder belt, and a rucksack component connected to the rucksack body. The rucksack according to any one of claims 1 to 3, wherein the rucksack is provided in at least one of the above. 5. The rucksack according to any one of claims 1 to 4, wherein the shoulder belt is provided with means for accommodating or holding a control device of the acoustic signal generator. . 6. The rucksack according to any one of claims 1 to 5, wherein the shoulder belt has means for accommodating or holding a microphone.