JPH04345296A - Body sensible acoustic device - Google Patents

Abstract

PURPOSE:To keep the weight of user from an electric and mechanical vibration converter by adding vibration from the end part of plate-shaped or net-shaped vibration transmitting material in the horizontal direction. CONSTITUTION:A flange 3 is formed in a part of a housing 2 in the electric and mechanical vibration converter 1 generating mechanical vibration corresponding to a sound signal at the time of receiving the sound signal. The flange 3 is coupled with plate-shaped or net-shaped vibration transmitting material 4 so that the electric and mechanical vibration converter 1 is attached to a human body support object having plate--shaped or net-shaped vibration transmitting material 4.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides an electrical/mechanical vibration transducer that generates mechanical vibrations in response to audio signals when it is attached to a human body object such as a chair or bed. The present invention relates to a sensory acoustic device that does not apply vibration to a transducer.

0002

[Prior Art] The present inventors have long been researching a sensory acoustic device that receives audio signals from audio equipment, converts them into mechanical vibrations, and applies these vibrations to the body along with sound from speakers or headphones. Many patent rights and utility model rights have been acquired (Special Public Interest Publication in 1982-).
No. 2517, Japanese Patent Publication No. 57-9272, Japanese Patent Publication No. 58-9640, Japanese Utility Model Publication No. 64-6622
(See Japanese Utility Model Publication No. 58-4316, etc.). In all of the systems described in these publications, an electrical/mechanical vibration transducer is buried in or attached to an object placed on the human body, and the vibrations generated by the electrical/mechanical vibration converter are transmitted through the object placed on the human body. It was a structure that affected the human body.

[0003] In this way, if the vibrations generated by the electrical/mechanical vibration transducer are felt by the user's body through the object placed on the human body, the electrical/mechanical vibration transducer will naturally be affected by the user's weight or part of it. Department will be added. For this reason, it is necessary to devise measures for the object placed on the human body or the electrical/mechanical vibration transducer to prevent damage to the electrical/mechanical vibration transducer depending on the body weight, etc. In other words, in order to prevent unnecessary external forces from being applied to the electrical/mechanical vibration transducer, reinforcing members, etc. are required, which increases the number of parts that are not used to generate the physical vibration, which increases costs. was there.

0004

[Problems to be Solved by the Invention] The present invention has been made in view of this point, and instead of using the conventional longitudinal vibration method, it is possible to The present invention attempts to provide a sensory acoustic unit that adopts a method of applying vibration in the lateral direction and prevents the user's weight from being applied to the electrical/mechanical vibration converter.

[0005]

[Means for Solving the Problems] As a means for solving the above problems, the present invention provides a part of a housing of an electro-mechanical vibration converter that receives an audio signal and generates mechanical vibration in accordance with the audio signal. A flange is formed on the body, and the flange is coupled to a plate-shaped or net-shaped vibration transmission material, so that the electrical/mechanical vibration converter is attached to a human body placement object having the plate-shaped or net-shaped vibration transmission material. It is something.

[0006]

[Operation] With this configuration, the vibration generated by the electrical/mechanical vibration converter is applied to the vibration transmission material from the lateral direction through the flange formed on the housing of the electrical/mechanical vibration converter. Therefore, even if the vibration transmission material is thin, its apparent rigidity is high and vibration transmission is performed well. Since the vibration transmission material is laterally vibrated from the end of the vibration transmission material, the user's weight is not applied to the electromechanical vibration converter.

[0007]

[Embodiment] An embodiment of the present invention will be described below with reference to FIG. Reference numeral 1 denotes an electrical/mechanical vibration transducer, and the housing 2 part generates mechanical vibration in response to an audio signal by a structure described later. A flange 3 is formed at the bottom (in the illustrated example), and the flange 3 is attached to a vibration transmitting member 4 provided in a human body support (not shown).

The vibration transmitting material 4 is made of a plastic net having appropriate hardness and elasticity, and has appropriate hardness and elasticity. In the example, the wire diameter is 3.5 mm. When the object on which the human body is placed is a rug, the vibration transmitting material 4 is wrapped in soft cloth and urethane foam approximately 25 mm thick. The electrical/mechanical vibration converter 1 is disposed in an upright state at the end of the vibration transmission material 4 laid on a flat surface, and is attached to the vibration transmission material 4 with bolts 5. As a result, the electrical/mechanical vibration converter 1 having the structure described later generates reciprocating vibration in the direction shown by the arrow in FIG. 2 with respect to the vibration transmission material 4.

FIG. 3 shows an example in which an electrical/mechanical vibration converter 1 is incorporated inside a mattress 6 placed on a bed frame. In this case, the electromechanical vibration converter 1 is fixed to a frame 8 provided in the skin 7 of the mattress 6 at the flange 3. As for the fixing method, bolts 5 may be used as shown in FIGS. 1 and 2, but
You can also tie it with metal wire. 9 is a spring of the mattress 6.

Next, the structure of the electromechanical vibration converter 1 will be explained in detail. The electrical/mechanical vibration converter 1 has an internal structure as shown in FIG. In this figure, 10 is a base plate, and 11 is a cover. The cover 11 is fixed to the base plate 10 with bolts 12. Then, the following structure is housed in the housing 2 formed by these, and the electro-mechanical vibration converter 1 is formed. In FIG. 4, 13 is a yoke, which has a T-shaped cross section as shown. A ring-shaped magnet 14 is attached to the outer circumference of the yoke 13.
A top plate 15 is provided on the outside thereof, and these are supported by the aforementioned bolts 12 via ring springs 16 as dampers. 17 is a spacer.

[0011] With the above structure, one side is covered with magnet 14.
A magnetic gap 18 is formed between the inner periphery of the top plate 15 and the protrusion 13a of the yoke 13, which are brought into contact with each other. A coil 19 is provided inside this gap 18, and a low frequency current from an audio device (not shown) is applied through a cord 20.

The electrical/mechanical vibration converter 1 configured as described above is supplied with a music signal that has undergone signal processing, that is, has its low frequency cut off, while being attached to the vibration transmitting member 4. That is, when the coil 19 receives a signal-processed low-frequency current from an audio device (not shown), magnetic interference between the coil 19 and the magnet 14 causes the yoke 13, the magnet 14, and the top plate 1 to
5's integrated object vibrates. As a result, the vibration transmitting material 4 to which the electrical/mechanical vibration converter 1 is attached vibrates, and the object placed on the human body also vibrates. Due to this vibration, the person on the human body placement object can experience vibration.

FIG. 5 shows a case where the present invention is applied to a rug 20 and the rug 20 is viewed simultaneously with sound from a speaker 21 placed in the front. In this case as well, when a music signal is applied to the electro-mechanical vibration converter 1, it is possible to generate vibrations in the direction shown by the arrow in the vibration transmission material 4. 6 and 7 show the present invention applied to an aerobics floor 22 of a fitness club. 23 is a support. In this case, the electrical/mechanical vibration converter 1 may be provided not at the end of the floor 22 but at the center of the floor 22 or the like. In the case of this embodiment, when activated, it vibrates as shown in FIG.

In the embodiments described above, the electrical/mechanical vibration transducer 1 having an internal structure as shown in FIG. It may be something. In short, any device that can generate vibrations corresponding to a signal whose frequency and amplitude change constantly, such as a music signal, is sufficient. In addition, in terms of vibration efficiency, it is better to apply a low frequency current of about 150 Hz or less to the electric/mechanical vibration converter 1, but the material of the vibration transmission material 4 or the shape of the mattress 6, rug 20, etc. Accordingly, it is preferable to appropriately determine the cutoff signal.

[0015]

According to the present invention, the vibration generated by the electromechanical vibration converter constructed as described above is applied to the vibration transmission member from the lateral direction. Therefore, even if the vibration transmission member is thin, its apparent rigidity is high and vibration transmission is performed satisfactorily. As a result, the following specific effects can be obtained. 1. It's thin and doesn't make you feel uncomfortable when you sit on it. 2. Since no person is placed on top of the electrical/mechanical vibration converter, there is no risk of damaging the electrical/mechanical vibration converter. According to experiments, sufficiently good results were obtained even when a chair was placed on top of a human body mount that vibrates laterally. 3. The rug can be made to be soft overall, making it suitable for both Japanese and Western rooms. 4. Due to the transverse vibration method, there is little acoustic radiation from the vibrating body. Conventional rugs have the disadvantage that when the vibration area increases, the sound radiation efficiency of bass sounds increases and the sound radiation increases. This does not occur with the present invention which employs transverse vibration. 5. High vibration efficiency. Since the vibration type can be made lighter and vibration transmission can be improved, a product with high vibration efficiency can be obtained. In other words, in the conventional longitudinal vibration method, the lighter the vibration transmission material, the softer it becomes and the lower the vibration transmission efficiency, but in the lateral vibration method of the present invention, the vibration is driven from the lateral direction of the material, so the vibration transmission material is made of plastic mesh. Even if the material is made of , the stiffness in the vibration direction can be kept equivalently high, and the vibration transmission efficiency can be kept high. 6. You can get pleasant vibrations. With the conventional vertical vibration method, depending on the type of sound, it could sometimes feel like it was pushed up too much, but with the horizontal vibration method, this does not occur. 7. Since the flange is formed directly on the electrical/mechanical vibration transducer, no bracket is required when it is attached to an object placed on a human body, so the number of parts is reduced and it is economical.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view of that of FIG. 1;

FIG. 3 is a schematic diagram showing the electrical/mechanical vibration converter of the present invention attached to a bed.

FIG. 4 is a cross-sectional view showing an example of an electrical-mechanical vibration converter.

FIG. 5 is a perspective view showing another embodiment of the present invention.

FIG. 6 is a perspective view showing still another embodiment of the present invention.

FIG. 7 is a side view showing the device in FIG. 6 in use.

[Explanation of symbols]

1 Electrical/mechanical vibration transducer 2 Housing 3 Flange 4 Vibration transmission material 6. Mattress

Claims (1)

[Claims] Claim 1: A flange is formed on a part of the housing of an electro-mechanical vibration converter that receives an audio signal and generates mechanical vibration according to the audio signal, and the flange is used as a plate-like or mesh-like vibration transmitter. 1. A body-sensing acoustic device, characterized in that the electric/mechanical vibration transducer is attached to a human body support having a plate-like or net-like vibration transmitting material.