JPS6316212Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting structure for an acoustic vibrator in a seat suitable for attaching an acoustic vibration transmission device to a passenger car or the like.

Recently, acoustic vibration transmission devices have been proposed,
An acoustic vibration transmission device is a system that uses a filter to extract low-frequency sounds that cannot be transmitted to the listener using conventional speakers when listening to music, amplifies this, and then converts it into vibration waves using an acoustic vibrator. This device is capable of transmitting music to a person's body, making it possible to feel music through the body as well as the normal sound waves perceived through the ears, thereby improving the sense of realism associated with listening to music.

The above-mentioned acoustic vibration transmission device is considered to be in extremely high demand as it matches the tastes of today's young people who love music, and if such a device is applied to vehicles such as passenger cars, it will be possible to listen to music while driving. Delivers even more comfort.

However, when attempting to attach the vibrating body of an acoustic vibration transmission device to a conventional passenger seat in a passenger car, etc., it is necessary to attach the vibrating body closely to the surface of the seat in order to transmit the vibration waves to the occupant via the cushion of the seat. The conventional mounting method has the drawbacks that assembly is troublesome, it is difficult to attach and detach the vibrating body, and maintenance is low.

The present inventor has devised the present invention in view of the above-mentioned problem and to effectively solve the problem.

The purpose of the present invention is to simplify the assembly work and facilitate the attachment and detachment of the vibrating body after installation when installing an acoustic vibration transmitting device in a passenger car, for example, when attaching an acoustic vibrating body to a seat. An object of the present invention is to provide a mounting structure for an acoustic vibrating body in a seat, which is intended to improve maintainability.

The feature of this invention is that a vibration transmitting plate is provided in the form of a skin on the underside of the cushioned seat, the surrounding side surfaces, and even the back of the backrest, and the parts located outside of this vibration transmitting plate vibrate. The reason lies in the fact that it is attached to the body.

An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

First, the electrical configuration of the acoustic vibration transmission device will be outlined. Listener 2 sitting on seat 1 in Figure 1
On the other hand, a conventional audio device, such as a tuner or a cassette tape recorder, generates an electric signal related to music by an amplifier 3, and a speaker 4 performs electroacoustic conversion to give a sound wave. On the other hand, electric signals related to music, etc. are separately extracted and filtered through a low-pass filter 5 to filter out the low frequency range (for example, 150Hz or less).
This low-frequency signal is amplified by a special low-frequency power amplifier 6, and the amplified electric signal causes the transducer installed on the sheet 1, that is, the acoustic vibrator 7, to Vibration waves are generated by the vibration transmission plates 7, 7, and are directly transmitted to the body of the listener 2 via the cushioned seat portion 1a and backrest portion 1b of the seat 1.

As mentioned above, an acoustic vibration transmission device is a component that extracts the bass part from an electrical signal such as music, increases its power, and generates it as a vibration wave.
It consists of a low-pass filter 5, a special power amplifier 6, and a vibrating body 7. Furthermore, since the vibration waves generated by the vibrating body 7 need to be transmitted to the body of the listener 2, the seat 1 equipped with a cushioned seat and backrest is required as a transmission medium. In order to enhance the effect of the acoustic vibration transmission device and to simplify its installation, the mounting structure of the vibrating body 7 to the seat 1 is important.

Next, a specific mounting structure of the vibrating body on the seat of a vehicle such as a passenger car will be explained.

FIG. 2 shows the appearance of, for example, a one-person seat in a passenger car. For this single seat 1, the acoustic vibrating body 7 is mounted on the front surface of a cushioned seat portion 1a that can be easily handled from the outside. , or both sides of the backrest portion 1b.

FIG. 3 is a longitudinal sectional view of the front side of the cushioned seat 1a, and 8 is a longitudinal sectional view of the cushioned seat 1a.
This is the cushion material that forms part a. A required space S ₁ is formed in the lower part of the cushion material 8, and seat frames 9 having a U-shaped cross section are arranged on both sides of the space when viewed from the front. In between, a plurality of seat springs 11, both ends of which are connected to each seat frame 9 via coil springs 10 and have, for example, a wavy planar shape, are stretched in parallel. The cushion material 8 of the seat portion of the seat 1 is placed and fixed on the seat spring 11, and is elastically supported by the seat spring 11.

Note that the left side portion in FIG. 3 is omitted because it is symmetrical with the right side portion.

Raised parts 8a are formed on both sides of the cushion material 8 to support the buttocks of the occupant, and the vibrating body 7 is attached to the outer surface of the raised parts 8a. To install it, first, a diaphragm 12 made of, for example, aluminum, iron, polonium, etc. is arranged on the lower surface of the cushion material 8, and in particular, a portion extending from the lower surface of the cushion material to the side surface of the surrounding raised part. The vibrating body 7 is attached to the peripheral side surface 8a-1 in a skin-like manner, with the peripheral skin material 1c of the cushioned seat portion 1a interposed therebetween, using screws 13 or the like in close contact.
It is fixed.

In this way, the vibrations generated by the vibrating body 7 are transmitted to the vibrating plate 12, which transmits the vibrations from the vibrating body 7 to the entire cushion material 8, and further to the body of the occupant. In this way, the diaphragm 1
Since the material 2 has the function of transmitting vibration waves, it is necessary to use a material that is excellent in transmitting vibrations.

Further, the diaphragm 12 can be disposed on the front surface of the seat portion 1a, and further on the back surface and both sides of the backrest portion.
As a result, the vibrating body 7 can be attached to the front surface of the seat portion 1a and both sides of the backrest portion, thereby increasing the degree of freedom in attaching the vibrating body 7.

As mentioned above, the vibrating body 7 is connected to the seat portion 1a of the seat 1,
Since it is attached to the side surface of the outer periphery of the backrest portion 1b, the vibrating body 7 can be easily attached and detached from, for example, a car seat.

Furthermore, for example, a pan frame or the like can be used as the vibrating body 12.

As is clear from the above explanation, according to the present invention,
By simplifying the attachment and detachment of the vibrating body, it is possible to improve the ease of assembling and maintenance of the vibrating body.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a configuration diagram of an acoustic vibration transmission device, Fig. 2 is a perspective view of the seat showing the mounting position of the vibrating body, and Fig. 3 is a front vertical section of the seat portion. It is a diagram in which the left half of the figure is omitted. In the drawings, 1 is a sheet, 7 is a vibrating body, 8 is a cushion material, and 12 is a diaphragm.

Claims (1)

[Scope of utility model registration request] In a seat having a cushioned seat portion and a backrest portion, a vibration transmission plate is provided in the form of a skin on at least one surface of the lower surface of the cushioned seat portion, the surrounding side surface, the back surface of the backrest portion, and the portion related to the surrounding side surface of the seat. A mounting structure for an acoustic vibrating body in a seat, characterized in that the vibrating body is fixed to the outer side of the vibration transmission plate.