Devising mechanism for changing timbre of sound of portable terminal by making wooden plate as thick as possible

Abstract

To solve the problem that a sound etc., of a current portable terminal is requested to be listened at low volume from a point of view of privacy protection.SOLUTION: There is provided a loudspeaker for a portable terminal from which even a lower sound can be listened to with good timbre without any power supply. In Fig. 1, a thin plate C which is made as thin as possible is bent in a loudspeaker shape by passing above a round bar (a), below a round bar (b), above a round bar X, below a round bar (c), above a round bar (d), and below a round bar (e).SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] This invention is a wooden speaker made by thinning a wooden board as much as possible and turning it into a speaker, which changes the tone of a mobile device. [Background technology]

[0002] In recent years, mobile terminals such as smartphones have become widespread, but sound problems have also increased rapidly. It is important to value privacy wherever you are, and you want to be able to listen comfortably even to small sounds and enjoy using them. For example, Patent Document 1 has the feature that it places a smartphone and emphasizes the expansion of sound, but does not change the tone of the sound. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-78061 Summary of the Invention [Problem to be solved by the invention]

[0004] The sound of current mobile devices is problematic from the viewpoint of privacy protection, and it is required to listen to them with the volume turned down. [Means for solving the problem]

[0005] In view of the above problems, the present invention provides a speaker for a mobile terminal that can be used without a power source and has a good sound quality even at low volume. Effect of the Invention

[0006] This invention places emphasis on privacy and can be used both indoors and outdoors, and is particularly effective in disaster evacuation shelters because it does not require a power source. [Brief description of the drawings]

[0007] [Figure 1]1 is a side view of a speaker for a mobile terminal according to the present invention; [Diagram 2] 1 is a front view of a speaker for a mobile terminal according to the present invention; [Diagram 3] 1 is a reference perspective view of a speaker for a mobile terminal according to the present invention before a thin plate C is attached. FIG. [Figure 4] 1 is a reference perspective view of a speaker for a mobile terminal according to the present invention; [Diagram 5] FIG. 1 is a reference diagram showing a state in which a mobile terminal is placed on the device. [Figure 6] A reference perspective view showing another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The present invention is a speaker for a mobile terminal that is composed of a pair of left and right frame plates and a number of round bars and thin plates connecting the frame plates. The characteristic of this product is that thin plate C, which has been made as thin as possible and has round bars I, H, and N passed between the right frame A and the left frame B, which have holes for the round bars, is bent into a speaker shape by passing thin plate C over round bar I, under round bar B, over round bar X, under round bar Ha, over round bar Ni, and under round bar E. This invention is a speaker-type stand that changes the tone of small sounds from mobile devices by thinning wooden boards to the limit and forming them into a speaker. The feature of this invention is that wooden boards are made as thin as possible, 6mm round bars I, H, 2, and X are assembled into boards A and B, and thin board C is bent into a speaker shape. It has been proven in guitar making that thinning boards improves the tone of guitars and other instruments, but there is a risk that thinning boards will cause distortion. This method prevents distortion of the board. Thin board C is assembled into a speaker shape by passing it over round bar I, under round bar B, over round bar X, under round bar Ha, over round bar 2, and under round bar Ho, removing distortion of the board. Making the plate thinner changes the timbre of the sound, but if the round bar A and thin plate C stick together, the vibration of the thin plate is suppressed, which changes the timbre, so it is necessary to prevent the round bar A and thin plate C from touching each other. For this reason, round bar X is attached to maintain the shape of the thin plate. Since round bar X has a negative effect on the vibration of thin plate C, it is possible to suppress the negative effect of the vibration of thin plate C by cutting it 10 mm from plates A and B. Thin plate C is characterized by its easy removal, and experiments have been conducted with thicknesses from 0.2 mm to 0.4 mm, showing that the sound changes depending on the thickness. It was also found that the diffusion and timbre of the sound changes by changing the position of the round bar, and the timbre also changes depending on the position of the mobile device C. [Explanation of symbols]

[0009] A Right frame B Left body frame C thin plate S Smartphone body S1 Smartphone end S2 Smartphone sound generator B. Round bar B Round bar C Round bar 2. Round bar E Round bar X Short round bar

Claims

[Claim 1] This invention is a speaker-type stand made by thinning a wooden board as much as possible to turn it into a speaker-like shape, which changes the tone of small sounds from mobile devices and the like.

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