JPH01202099A - Vibrator - Google Patents

Abstract

PURPOSE:To effectively transmit vibration to a human body independently of the shape or size of a chair or the like by providing the title vibrator with an elastic member having a planar hollow part and vibrating the elastic member by an electric vibration converting means connected to the hollow part. CONSTITUTION:The planar hollow part 8a if formed in urethane foam 8 to be the elastic member and an acoustic box 20 is arranged in the vicinity of the boundary between the hollow part 8a and an urethane material 8b. An aperture 24a is formed on a diaphragm 24 and a speaker 34 functioning as an electric vibration converting means is fixed to the aperture 24a. An electric signal applied to a signal line 2 is converted into acoustic vibration by the speaker 34 and the acoustic vibration vibrates air in the hollow part 8a and is propagated to the whole hollow part 8a. The urethane foam 8 is vibrated by pressure waves and the vibration is transmitted to a human body on a cushion.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibration device that converts an electrical signal into mechanical vibration.

[Prior Art] Fig. 9 shows a conventional vibration device disclosed in Utility Model Application Publication No. 51-123793. 2 is converted into acoustic vibration in the sounding body 4, and the diaphragm 6
vibrate. The diaphragm 6 is attached to a cushion material 8, and its vibrations are transmitted to the cushion material 8.

Therefore, acoustic vibrations are transmitted to the body sitting on the cushion material 8. Thereby, the music etc. input to the signal line 2 can be felt as vibrations with the body.

[Problem to be solved by the invention] Conventional devices such as those described above have the following problems.

First, if it is desired to vibrate the seat and backrest, it is necessary to provide the sounding body 4 on both the seat and backrest.

Second, the diaphragm 6 of the sounding body 4 is made of a rigid body,
Since there are restrictions on its shape, it has been difficult to form the diaphragm 6 into a shape that matches the human body.

For this reason, there was a problem in that the vibrations were not effectively transmitted to the human body and lacked impact.

Thirdly, since the sounding body 4 and the diaphragm 6 are built into a chair or the like, the diaphragm 6 cannot be made very large. Therefore, if you want to vibrate over a wide range,
A plurality of sounding bodies 4 and diaphragms 6 had to be provided.

An object of the present invention is to solve the above-mentioned problems and provide a vibration device that can effectively transmit vibrations to a human body regardless of the shape and size of a chair or the like.

[Means for Solving the Problems] A vibrating device according to the first invention includes an elastic member that receives pressure from the body and is provided with a planar hollow portion inside, and an elastic member that is connected to the hollow portion and generates elastic force. It is equipped with electric vibration converting means for vibrating the member.

The vibrating device according to the second invention includes an elastic member that receives pressure from a U-body, has a non-breathable skin, and has an elastic material with good air permeability stored inside the skin; An electric vibration conversion means is provided inside the member and vibrates the elastic member.

[Operation] In the first invention, the vibration generated by the electric vibration converting means is transmitted through the hollow portion and causes the entire elastic member to vibrate.

In the second invention, the vibration generated by the electric vibration conversion means causes the elastic member to vibrate.

[Example] An example of a vibrating device according to an embodiment of the first invention is shown in FIG.
A planar hollow portion 8a is formed inside. Second
The figure shows the state in which the hollow portion 8a is formed, and the hollow portion 8a is formed in a planar manner over almost the entire surface of the urethane foam 8. An acoustic box 20 is provided near the boundary between the hollow portion 8a and the urethane material 8b. FIG. 3 shows a plan cross-sectional view of the acoustic box 20. The interior of the housing 22 is divided into a front chamber 28 and a rear chamber 26 by a partition plate 24. As shown in FIG. The partition plate 24 is provided with an opening 24a, and a speaker 34, which is an electric vibration converting means, is attached to this opening 24a. The front chamber 28 is connected to the hollow part 8 via a pipe 30.
It is connected to a. A vibrator 32 is provided in the rear chamber 26 and inserted into the urethane material 8b.

Since the urethane material 8b is formed as open cells,
The rear chamber 26 is connected to the outside through these fine open cells. Moreover, since the urethane material 8b has open cells, the surface 8c of the urethane material 8b on the hollow part 8a side has
A membrane is formed to close these bubbles. This membrane is
For example, it can be formed by a film formed on the surface that comes into contact with the mold during foaming. Note that if the urethane material 8b is made of closed cells, it is not necessary to form such a film.

The electrical signal applied to the signal line 2 is converted into acoustic vibrations at the speaker 34. This acoustic vibration is caused by the hollow part 8a
This pressure wave causes the air inside to vibrate, and the zero-foamed urethane 8 that spreads throughout the hollow portion 8a vibrates. This vibration is transmitted to the human body on the cushion.

By using this device to sense vibrations through the sense of touch and at the same time sensing sound through the auditory senses through external speakers, headphones, etc. (not shown), a rich sense of reality can be obtained.

In the above embodiment, the acoustic box 20 is provided, but the speaker 34 may be provided directly, or the hollow portion 8a may be used to form something equivalent to an acoustic box.

When manufacturing the vibrating device according to the present invention, urethane foam 81 provided with a recess 81a as shown in FIG.
Alternatively, the hollow portion 8a may be formed by a thin film hollow member, and the urethane foam 8 may be formed around the hollow portion 8a.

The elastic member is not limited to foamed urethane, but other elastic materials such as foamed resin, sponge-like elastic material, porous elastic material, and 4M fibrous mat can be used.

In this embodiment, shown in FIG. 5, the hollow portion 8a is formed in a wavy shape while having a planar extent. This increases the surface area of the hollow portion 8a and improves the vibration efficiency.

In the embodiment shown in FIG.
It is divided into two parts. The front chamber 28 of the acoustic box 20 is communicated with the hollow section 8aa, and the rear chamber 26 is communicated with the hollow section 8ab. In this embodiment, two hollow parts are provided in the vertical direction, but two hollow parts may be provided in the horizontal direction.

It is also possible to add elasticity by inserting a coarse loofah fiber-like material (polyethylene foam, etc.) or a spring into a part or the entire surface of the hollow portion 8a.

An embodiment of the vibrating device according to the second invention is shown in cross section in FIG. 7. A loofah-shaped fiber material 52 is housed inside a skin 50 made of vinyl material, forming an elastic member. Inside the fiber material 52, a speaker 20, which is an electric vibration converting means, is provided. The sound emitted from the speaker 20 is transmitted through the breathable fiber material 52, causing the entire elastic member to vibrate.

Furthermore, as the material to be stored inside the skin 50, a sponge-like material 54 as shown in FIG. 8 is also preferable. There is.

Further, the skin 50 does not necessarily have to be completely impermeable, and may have pores or vibrate in response to the oscillating air pressure from the speaker 20 due to the viscous resistance of the air flow. Bye.

[Effects of the Invention] The pulsation device according to the first invention includes an elastic member having a planar hollow portion, and an electric vibrator connected to the hollow portion. The elastic member is vibrated by the JJ conversion means.

Therefore, it has the following effects.

First, regardless of the shape or size of the chair, cushion, etc., the hollow part can be formed freely, and the elastic member can efficiently vibrate the body.

Second, since the hollow portion is formed with a planar extent, the elastic member can be vibrated efficiently.

The vibrating device according to the second aspect of the present invention includes an elastic member in which a highly breathable and elastic material is housed, and the elastic member is vibrated by electric vibration converting means provided inside the elastic member. Therefore, it has the following effects.

First, regardless of the shape and size of the chair, cushion, etc., the elastic member can be freely disposed, and the U-body can be vibrated efficiently.

Second, although the structure is simple, the entire elastic member can be vibrated efficiently.

That is, it is possible to provide a vibration device that can efficiently apply vibration to the body regardless of the shape and type of the chair, cushion, etc.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the @ moving device according to an embodiment of the first invention, FIG. 2 is a plan sectional view thereof, third is a plan sectional view showing the structure of the acoustic box, and FIG. 4 is the same as that shown in FIG. FIG. 5 is a perspective view showing another embodiment, and FIG. 6 is a sectional view showing still another embodiment.
FIG. 7 is a sectional view showing a vibrating device according to an embodiment of the second invention, FIG. 8 is a sectional view showing another embodiment, and FIG. 9 is a sectional view showing a conventional vibrating device. 8...Urethane foam 8a...Hollow portion 20...Acoustic box Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Patent Attorney Takaji Tsukashima Figure 1 Figure 2 Figure 3 Figure 5 Figure 6 ab Figure 7 50: Epidermis 52: Henna method' fiber materials, materials Figure 8 54: Trousers Figure 9 Procedural amendment (method) 1. Indication of the case Patent Application No. 27019 of 1988 2. Name of the invention Vibration device 3. Person making the amendment Relationship to the case Patent applicant address 1-17 Edobori, Nishi-ku, Osaka No. 18 Name (3
14) Toyo Tire & Rubber Industries Co., Ltd. 4, Agent address: 3-2-14-6 Umeda, Kita-ku, Osaka 530, Column 7 for a brief explanation of the drawings in the specification subject to amendment, Contents of amendment (1) Specification , page 9, line 13, insert "figure" after "third".

Claims (2)

[Claims] (1) An elastic member that receives pressure from the body and has a planar hollow part inside thereof; and an electric vibration conversion means that is connected to the hollow part and vibrates the elastic member. Vibration device. (2) An elastic member that receives pressure from the body, has an outer skin, and has a breathable and elastic material housed inside the outer skin, and an electricity that is provided inside the elastic member and vibrates the elastic member. A vibration device comprising: vibration conversion means.