JPH08192U - Voice amplification structure of voice generator - Google Patents

Abstract

(57) [Summary] (Object) An object of the present invention is to provide a sound amplification structure of a sound generating card which can increase the volume and soften the sound quality. (Configuration) A voice amplification structure of a voice generation card that emits voice based on opening and closing of a card, wherein a metal foil wider than the piezo buzzer adhered to a monopolar surface side of the piezo buzzer and the metal foil surrounding the piezo buzzer A foam elastic material connected to the piezo buzzer is provided. Further, a mount having a hole for attaching the foam elastic material is provided, and the mount has a thick edge to form an echo box behind the piezo buzzer. Preferably, the metal foil is selected from tin foil or aluminum foil. The foamed elastic material is selected from low-foaming polymer resins such as polyurethane, polyethylene and polystyrene. The mount is selected from polymer resins such as polyurethane, polyethylene and polystyrene.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a voice amplification structure in a voice generating card such as a Christmas card or a congratulatory phone that emits a voice.

[0002]

[Prior art]

 With the recent development of IC circuit technology, the downsizing of circuits and the development of piezo buzzers have made it possible to create thin and light voice generators, and a large number of Christmas cards and congratulatory cards emit voice. It has become popular. However, there is a limit to the volume of sound that can be output from a piezo buzzer, etc., so various engineers have been used to amplify the volume. For example, a piezo buzzer covered with plastic to form an echo box is commercially available.

[0003]

[Problems to be solved by the invention]

 However, it cannot be said that the conventional method has sufficiently solved the drawback that the sound volume is low and the sound quality is hard, and further improvement is required.

The present invention provides a voice amplification structure of a voice generation card, which greatly improves the above-mentioned conventional drawbacks, increases the volume, and softens the sound quality.

[0005]

[Means for Solving the Problems]

 In order to solve this problem, the voice amplification structure of the voice generation card of the present invention is the voice amplification structure of the voice generation card that emits voice based on the opening and closing of the card, and is attached to the monopolar side of the piezo buzzer. A metal foil wider than the piezo buzzer, and a foamed elastic material that surrounds the piezo buzzer and is connected to the piezo buzzer by the metal foil. Further, a mount having a hole for attaching the foam elastic material is provided, and the mount has a thick edge to form an echo box behind the piezo buzzer.

Here, the metal foil is selected from tin foil and aluminum foil. The foamed elastic material is selected from low-foaming polymer resins such as polyurethane, polyethylene and polystyrene. Further, the mount is selected from high molecular weight resins such as polyurethane, polyethylene and polystyrene.

[0007]

【Example】

 FIG. 1 is a perspective view of the entire voice generating structure of this embodiment as viewed from above. In FIG. 1, reference numeral 1 denotes a piezo buzzer, which generates a predetermined sound by an electric signal from a sound generation circuit 5 when the switch 6 senses that a card is opened, for example. The switch 6 and the sound generation circuit 5 are not directly related to the present invention, so the description thereof will be omitted, but known circuits may be used. Reference numerals 1a and 1b are electrode ends to which an electric signal line to the piezo buzzer 1 is connected.

Reference numeral 2 denotes a metal foil bonded to the surface of the piezo buzzer 1 that does not have the electrode ends 1a and 1b (lower surface side in FIG. 1), and is preferably tin foil or aluminum foil. 3 is a foamed elastic material having a hole having a diameter into which the piezo buzzer 1 can be fitted. The diameter of this hole is slightly smaller than the diameter of the piezo buzzer 1, and strengthens the contact between the outer peripheral surface of the piezo buzzer 1 and the foam elastic material 3. The foamed elastic material 3 is preferably a foamed polymer resin, for example, a foamed material such as polyurethane, polyethylene, or polyethylene, and is low in order to have good resilience and rigidity necessary to stabilize the piezo buzzer. Foamed ones are preferred.

Reference numeral 4 is a mount on which a sound generating device including a foamed elastic material 3, a sound generating circuit 5, a switch 6 and the like is attached. The material of the mount 4 is not limited to paper and may be the above-described polymer resin, and is preferably a good electric body. The peripheral edge thickness 4a of the mount 4 is thicker than the internal thickness 4b so as to form an echo box between the mount 4 and the card.

FIG. 2 is a perspective view of the voice generating structure of FIG. 1 seen from below. The structure of the mount 4 is shown more clearly. The surface and the inner surface of the mount 4 are illustrated as having corners, but from the viewpoint of strength and safety, a gentle R-shaped object is preferable.

FIG. 3 is a diagram showing a state where the voice amplification structure of FIG. 1 is disassembled. R1 to R5 shown in FIG. 3 are diameters of respective parts and holes, and have a relationship of R3> R4> R2> R1 .apprxeq.R5. Here, in order to clarify the configuration of the sound amplification structure of the present embodiment, the preferred procedure for making is briefly shown with reference to FIG. 3. First, the metal foil 2 is bonded to the monopolar surface side of the piezo buzzer 1, Next, the piezo buzzer 1 is pushed into the hole of the foam elastic material 3 from below in FIG. 3 to bond the metal foil 2 and the foam elastic material 3 to each other. The foamed elastic material 3 is adhered to the mount 4 from above in FIG. 3 so that the piezo buzzer 1 is located substantially in the center of the hole of the mount 4.

Note that the dimensions and shapes shown in the present embodiment are examples, and the holes may be rectangular, for example, and are not limited thereto.

[0013]

[Effect of device]

 According to the present invention, it is possible to provide a voice amplification structure of a voice generation card that has a high volume and softens the sound quality. That is, the vibration of the piezo buzzer was transmitted to the foamed elastic material through the metal foil or its side surface, and combined with the reverberation box formed by them, a significant increase in volume and improvement in sound quality were achieved.

[Submission date] March 19, 1991

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] Paragraph number 0001 in the detailed description of the device

[Correction method] Change

[Correction content]

[Paragraph number 0001 in the detailed description column]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice amplifying structure in a voice generating device such as a Christmas card or a caller that emits a voice.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] Paragraph number 0004 in the detailed description of the device

[Correction method] Change

[Correction content]

Paragraph No. 0004 in the Detailed Description of the Invention The present invention provides a voice amplification structure of a voice generation device, which greatly improves the above-mentioned conventional drawbacks, increases the volume and softens the sound quality.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] Paragraph number 0005 in the detailed description of the device

[Correction method] Change

[Correction content]

[Paragraph Number 0005 in the Detailed Description of Invention]

[Means for Solving the Problems]

 In order to solve this problem, the sound amplification structure of the sound generation device of the present invention is a sound amplification structure of a sound generation device that emits sound based on opening and closing of a switch, and is adhered to the monopolar side of the piezo buzzer. A metal foil wider than the piezo buzzer, and a foamed elastic material that surrounds the piezo buzzer and is connected to the piezo buzzer by the metal foil. Further, a cardboard-shaped mount for attaching the foamed elastic material is provided, and the mount forms a large and small acoustic control chamber behind the piezo buzzer as required.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] Paragraph number 00013 in the detailed explanation column of the device

[Correction method] Change

[Correction content]

[Paragraph number 00013 in the detailed description column]

[Effect of device]

 According to the present invention, it is possible to provide a voice amplification structure of a voice generation device that can increase the volume and soften the sound quality. In other words, the vibration of the piezo buzzer was transmitted to the foamed elastic material through the metal foil or its side surface, and together with the reverberation box that they constituted, a significant increase in volume and improvement in sound quality were achieved.

[Brief description of drawings]

FIG. 1 is a perspective view of the entire voice generating structure of the present embodiment as viewed from above.

FIG. 2 is a perspective view of the entire voice generating structure of the present embodiment as seen from below.

FIG. 3 is an exploded view of the voice amplification structure of the present embodiment.

[Explanation of symbols]

1 ... Piezo buzzer, 2 ... Metal foil, 3 ... Foam elastic material, 4 ...
Mount, 5 ... Voice generating circuit, 6 ... Switch

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[Procedure amendment]

[Submission date] March 19, 1991

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (5)

[Scope of utility model registration request] 1. A voice amplification structure for a voice generation card that emits voice when a card is opened or closed, comprising a metal foil wider than the piezo buzzer, which is adhered to the monopolar side of the piezo buzzer, and the metal foil surrounding the piezo buzzer. And a foamed elastic material connected to the piezo buzzer. 2. The sound according to claim 1, further comprising a mount having a hole for attaching the foamed elastic material, the mount having a thick edge to form an echo box behind the piezo buzzer. Voice amplification structure of the generating card. 3. The voice amplifying structure for a voice generating card according to claim 1, wherein the metal foil is selected from tin foil and aluminum foil. 4. The voice amplification structure for a voice generating card according to claim 1, wherein the foamed elastic material is selected from high-foaming polymer resins such as polyurethane, polyethylene, and polystyrene. 5. The voice amplifying structure for a voice generating card according to claim 1, wherein the mount is selected from polymer resins such as polyurethane, polyethylene and polystyrene.