JP2006254396A - Back reliance cushion for two-wheeled vehicle having acoustic system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a back reliance incorporated with an acoustic device such as a speaker mounted to the rear end of a seat for use which is made available anytime during the traveling of a two-wheeled vehicle or a rest or camping. <P>SOLUTION: In a back reliance for a two-wheeled vehicle, diaphragms of at least a pair of speakers are configured so as to face outward, the angle of the setting direction of each speaker is held in a range from almost 0° to almost 90° with respect to the forward direction of the two-wheeled vehicle, and a range from almost 0° to 90° to the upper part of the horizontal direction, and the speaker is incorporated in the back reliance cushion covered with a mesh-shaped or perforated cover, and fixed to one or a plurality of a skins or support bodies or cushion bodies. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a back cushion for a two-wheeled vehicle that is mounted on a rear end portion of a two-wheeled vehicle seat and incorporates an acoustic system mainly used for music appreciation.

In recent years, it has become common for many passenger cars and recreational vehicles such as wagons to be equipped with high-quality audio systems that combine amplifiers, CD players, MD decks, tuners, speakers, and the like. However, motorcycles, large scooters, and other two-wheeled vehicles that have a space structure that is open to the outside air are also buoyed by lifestyles that enjoy music and other sound systems.

The installation of an acoustic system on a two-wheeled vehicle, which is a space structure that is open to the outside air, has traditionally exceeded the level of ambient music such as music to be reproduced. It is generally not popular because it is difficult to reach the ear.

However, with the advent of portable, small-capacity hard disks or music playback devices (so-called MP3 players) with built-in flash memory, enjoying music while on the move has become a normal lifestyle. Is coming.

On the other hand, due to the background of larger vehicles, higher performance, safety devices, and legal grounds such as the lifting of two-seaters on highways, more and more long-distance travel on motorcycles It will be easier to remove and will be promoted in the future.

Since the situation is as described above, there are many requests for a two-wheeled vehicle user to use an acoustic system that can be used not only during traveling but also during a break or camping.

Under such circumstances, the present invention is designed to be mounted on the rear end of the seat in order to meet the various demands as described above in a two-wheeled vehicle in which the number of parts to which these sound devices can be mounted is extremely small compared to passenger cars. It shows the structure of a backrest with a built-in acoustic device that can be used.

In the backrest for a motorcycle according to the present invention, the back cushion has a cushion portion in the vicinity of the central portion on the left and right sides, cuts in the left and right portions of the side cushion, and incorporates a speaker.

The speaker attaches the speaker frame to the cushion portion, the support body or the skin with the direction of the diaphragm facing outward from the side.

At this time, the speaker is mounted from the lateral direction (that is, approximately 90 degrees with respect to the forward direction of the motorcycle) to the forward direction (approximately 0 degrees with respect to the forward direction) and in the horizontal direction or substantially above the horizontal. Fix in directions up to 90 degrees.

Next, when the amplifier is built in, the lower end portion of the cushion portion in the vicinity of the central portion on the left and right is further cut out to secure a space.

Further, when a body sensation sound device is built in, the front portion of the cushion portion in the vicinity of the left and right central portions is further cut mainly to secure a space.

When a sound source is received from a portable, small-capacity hard disk or a music player with built-in flash memory (a so-called MP3 player) and output from a speaker provided on the back support, these devices must also be used as back support. Built in the notch provided.

According to this configuration, the left and right central portions of the backrest that are attached to the rear end of the seat and serve as a support for the spine portion when seated function smoothly without being affected by the built-in speaker. .

Since it is formed by performing the processing as described above, it is easy to mount the acoustic device, and it is possible to sufficiently satisfy the user's request while having a compact configuration.

Since the backrest according to the present invention has the above-described configuration, the following effects can be obtained.
○ Since the sound device can be integrated and built in, the appearance is beautiful with no dispersal.
○ It can be set variously how far the audio equipment is built, and the necessary system configuration is possible.
○ It can also be used as a rear speaker for 5.1CH surround systems.
○ A commercially available music playback device can be used as is.
○ Since the sensory sound device can be attached to the center of the backrest, it is most effective for users.
○ The spine can be held and the riding posture is adjusted.

The best mode for carrying out the invention will be described in detail based on the following examples.

FIG. 1 is a perspective view of a backrest according to the present invention, FIG. 2 is a cross-sectional view of the A1-A2 portion in FIG. 1, and FIGS. FIG. 5 is a structural diagram of an acoustic device, and FIGS. 6, 7 and 8 show examples of the backrest attached state.

The back support 13 of this embodiment shown in FIGS. 1 and 2 is attached to the two-wheeled vehicle main body side via a mounting bracket 14 fixed on the support body 3, and the back support 13 attaches the support body 3 to the back support 13. A shape is made by the cushion body 2 as a base, and a skin 1a made of synthetic leather or the like similar to the seat is stretched on the outer periphery.

The cushion body 2 can be formed by a single layer such as chip molded urethane or molded urethane, but may be formed by using polyurethane foams having different hardnesses, for example, by using a multi-layered adhesive centering on the order of higher hardness. Many.

The speaker 4a is arranged with the direction of the speaker diaphragm 4d facing outward from the side surface, and the speaker frame 4b is fixed to the cushion body 2 in this embodiment.

The function of the speaker 4a may be transmitted to the user without damaging the sound reproduced by the speaker diaphragm 4d as much as possible. Therefore, the speaker frame 4b may be fixed to the support 3 and directly to the skin 1a. It may be fastened, and the part to be fastened is set in consideration of the reproduction characteristics.

The surface of the speaker 4a is covered with a speaker part skin 1b, and this skin 1b uses a skin having a stitch shape or a perforation in order to transmit the sound reproduced by the diaphragm 4d to the outside without damaging it as much as possible. However, the skin 1b does not necessarily need to be made of the same material as the skin 1a, and may be made of, for example, plastic or metal.

Further, since the backrest 13 of the present invention is premised on use in a motorcycle, it is obvious that it is necessary to take protection against rainwater when considering exposure to the outside air constantly. As shown in FIG. 2, in the backrest 13 of the present invention, at least the front surface of the speaker 4a is provided with a speaker portion skin 1b and at least a non-permeable cloth 5 fixed around the cover.

The non-water-permeable cloth 5 in this embodiment uses a skin having a property of transmitting gas but not transmitting liquid, but is a three-dimensional fiber product in which synthetic fibers are woven into a honeycomb or the like. It may be made of a material that can prevent rainwater from penetrating into the backrest 13 at atmospheric pressure, and can be omitted if the speaker skin 1b is waterproof so that the water-impermeable cloth 5 can also be used.

On the other hand, in the present embodiment, these water-impermeable cloths 5 are provided only on the front surface of the speaker 4a. However, the back support 13 may be entirely covered by being interposed between the skin 1a and the cushion body 2.

In the embodiment shown in FIG. 3, a sub-speaker (tweeter) 7 is added to the basic configuration incorporating the left and right speakers 4a shown in FIGS. 1 and 2, and an amplifier 8 and a low-frequency electric signal-mechanical vibration conversion transducer are added. 6a and an electric signal-mechanical vibration conversion amplifier 6b are added, but even if the bodily sensation sound device for converting the electric signal in the heavy bass region into mechanical vibration is omitted, the standard configuration of the present invention is used. Is enough.

In configuring the component stereo system, the speaker 4a shares the frequency of reproduction according to the characteristics thereof, the sub-speaker (tweeter) 7 has a high sound range, the speaker 4a has a medium sound, and a low sound region. The electric signal input to them is amplified by the amplifier 8.

The body sensation acoustic device that converts an electric signal into mechanical vibration to enhance the deep bass range converts the electric signal amplified by the electric signal-mechanical vibration conversion amplifier 6b into mechanical vibration by the vibrator 6a.

The embodiment shown in FIG. 4 has a basic configuration incorporating the left and right speakers 4a shown in FIGS. 1 and 2, and a music playback device 20 such as a portable compact large-capacity hard disk or flash memory or CD player, and a width / thickness. A cut portion (storage groove portion) 11 having the same inner diameter dimensions such as height and height is provided in the main constituent member of the backrest 13 to prepare for storage of the music playback device 20.

Furthermore, a sound source input terminal 10 is provided, and a controller 9a provided with an amplifier 8, an FM tuner 18, a controller volume knob 9b, a power switch 9c, and the like is also provided.

Note that the FM tuner 18 does not include the music playback device 20 in the backrest 13 but mounts the music playback device 20 in a separate position such as a handle portion when performing playback. This is provided for receiving radio waves from a conduction transmitter (which is put on FM radio waves of a certain frequency).

FIG. 5 is a developmental configuration diagram of an audio device according to the present invention based on the embodiment shown in FIGS. 3 and 4, but the minimum configuration according to the present invention is the speaker 4a and the speaker lead wire. Only 4c is sufficient.

As in the embodiment shown in FIG. 4, the central axis 4e of at least one pair of speakers is arranged at an angle of about 45 degrees with respect to the forward direction of the motorcycle. In the present invention, this speaker installation direction angle 4f is set. The speaker frame 4b is fixedly fixed to either the skin 1a, the support body 3 or the cushion body 2 or a plurality thereof by setting the range of approximately 0 degrees to approximately 90 degrees.

At the same time, the central axis 4e of at least one pair of the speakers holds and sets the speaker installation direction angle 4f upward with respect to the horizontal direction within an angle range between approximately 0 degrees and approximately 90 degrees. The speaker frame 4b is fixedly fixed to either the body 3 or the cushion body 2 or a plurality thereof.

As in the embodiment shown in FIG. 4, a waterproof cover 12 covering the cut portion (groove portion) 11 for storing the controller 9a and the music playback device 20 is fixed to the skin 1a as a measure against rainwater.

In the embodiment shown in FIG. 4, the waterproof cover 12 is lifted up, but when used, the waterproof cover 12 covers the controller 9 a and the cut portion (groove portion) 11 for storing the music playback device 20, Temporarily fixed with a fastener or the like.

Next, the effect by use of the backrest 13 of the present invention will be specifically described.

A portable and small-sized large-capacity hard disk or flash memory built-in music playback device 20 is called a so-called MP3 player and is widely used. The playback sound of the MP3 player is provided in the music playback device 20 such as an earphone terminal. Since the signal can be output via the output terminal, if the signal is received and amplified, there is an advantage that it can be easily used in the acoustic system of the present invention even if a reproduction device dedicated to a motorcycle is not provided.

In order to reproduce a heavy bass, in many cases, it is necessary to provide a speaker having a large diameter and a large output and a box-shaped casing called a speaker box that covers the speaker. There were many difficulties to reproduce with a motorcycle.

However, so-called sensible sensory devices that convert heavy bass electrical signals into mechanical vibrations do not transmit heavy bass to the user through air, but instead convert electrical signals in the bass to mechanical vibrations. , It can bring the effect of telling directly to the body.

For this reason, if the vibrator 6a is fixed in front of the left and right center of the backrest 13 according to the present invention, it can be effectively transmitted to the user's back, and the bass can be reproduced and the realism can be enhanced. It can be compact even in the installation space and can be built in the backrest 13.

The backrest 13 of the present invention is attached to the two-wheeled vehicle body through an attachment fitting 14 as shown in FIG. 6 fixed to the support 3 or an attachment pipe 16 as shown in FIG. As shown in FIG. 6, the seat 15 may be formed in close contact with each other, or may be integrally formed.

The backrest structure of the present invention can be used in fields such as an indoor space such as an office chair using a chair with a low backrest without a so-called headrest, and other moving spaces.

It is a perspective view of a sheet concerning the present invention. FIG. 2 is a partial cross-sectional view along A1-A2 in FIG. 1. It is the top view which showed the Example which concerns on this invention. It is the top view which showed the Example which concerns on this invention. It is an audio equipment block diagram concerning the present invention. It is the perspective view which showed the Example which concerns on this invention. It is the perspective view which showed the Example which concerns on this invention. It is the side view which showed the Example which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a Skin 1b Speaker part skin 2 Cushion body 3 Support body 4a Speaker 4b Speaker frame 4c Speaker lead wire 4d Speaker diaphragm 4e Speaker central axis 4f Speaker installation direction angle 5 Non-permeable cloth 6a Electrical signal-mechanical vibration conversion transducer 6b Electrical signal -Mechanical vibration conversion amplifier 7 Sub speaker (tweeter)
8 Amplifier 9a Controller 9b Controller volume knob 9c Controller power switch 10 Sound source input terminal 11 Notch (storage groove)
12 waterproof cover 13 backrest 14 mounting bracket 15 seat 16 mounting pipe 17 power supply unit 18 FM tuner 19 connector (wire terminal connector)
20 Music player 21 Electrical wiring

Claims (5)

With at least one pair of speaker diaphragms facing outward, the angle of each speaker installation direction is in the range of approximately 0 degrees to approximately 90 degrees with respect to the forward direction of the motorcycle, and approximately 0 degrees to 90 degrees upward in the horizontal direction. At least a speaker, held in a range of angles, covered in a back cushion, covered with a knit or perforated cover, and fastened to either the skin or support or cushion body, or a plurality thereof A motorcycle backrest consisting of a skin, cushion and support. With at least one pair of speaker diaphragms facing outward, the angle of each speaker installation direction is in the range of approximately 0 degrees to approximately 90 degrees with respect to the forward direction of the motorcycle, and approximately 0 degrees to 90 degrees upward in the horizontal direction. At least a speaker, held in a range of angles, covered in a back cushion, covered with a knit or perforated cover, and fastened to either the skin or support or cushion body, or a plurality thereof A two-wheeled vehicle seat which is formed by forming a back cushion portion comprising a skin, a cushion body, and a support body and covering the seat portion integrally. The back cushion according to claim 1 or 2, wherein an amplifier for amplifying an electric signal to be input to the speaker is incorporated, and a sound source input terminal is provided. 3. A low-frequency electric signal-mechanical vibration converter as a device that mechanically reproduces and reproduces a deep bass sound, wherein at least a vibrator part is fixed to a cushion body, a support body, or an epidermis and built in. Back cushion shown in A small hard disk drive or flash memory, or a portable music player with built-in CD or MD, and a groove that has substantially the same outer diameter of the frontage, depth, and height as a cushion body alone or both the cushion body and the support body Claims that are provided by cutting in, having substantially the same frontage / depth / height inclusion dimensions, and further having a cutout in the skin that has substantially the same frontage / depth dimensions, and at the same time a sound source input terminal on the skin. A back cushion for a motorcycle according to claim 1, claim 2, claim 3 or claim 4.

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