JP4420903B2 - Sound generator - Google Patents

Description

  The present invention relates to a sounding device that generates sound by vibrating a sounding body.

In general, an apparatus that generates sound by vibrating a sounding body is known. This type of sounding device is used as a time signal for a clock or as a sound source for a mechanism device. Patent Document 1 discloses a device that generates sound by hitting a circular tubular sounding body called a rod. Patent Document 2 discloses a device that generates a sound by playing a sound generator for a music box called a comb tooth.
JP 2000-137481 A JP 2001-175252 A

  Now, when the sounding body and the sounding body vibrating means for vibrating the sounding body are housed in a predetermined housing, a sound hole is provided at a key point of the housing so that sound generated by the sounding body is diffused from the sound hole. Good. However, depending on the location of the sounding device and the time zone during which the sound is generated, the sound may be louder than necessary, and it is desirable to devise a technique for reducing the volume. The present invention has been made in view of such circumstances, and an object thereof is to obtain a sounding device configured more functionally.

The invention described in claim 1 of the present application is a sounding device comprising a sounding body and sounding body vibrating means for vibrating the sounding body, wherein the sounding body vibrating means vibrates the sounding body to generate sound. The sounding device includes a vibration reducing member that reduces the volume of sound generated by the sounding body by coming into contact with the sounding body, and a housing that houses the sounding body, the sounding body vibration means, and the vibration reducing member. The housing is provided with a sound hole and a sound hole opening / closing means for opening / closing the sound hole, and the sound hole opening / closing means is configured such that a shielding plate is movably mounted inside the housing. The sounding body includes a metal diaphragm, the diaphragm is provided with a locking portion that supports the vibration reduction member, and the vibration reduction member is provided with a buffer on one side of the plate. Between the diaphragm and the shielding plate. And this is by raised or lowered starting from the locking part in conjunction with the sound hole opening and closing means, wherein said sound hole is opened away from the cushion is the diaphragm, the buffer member and the sound hole is closed Is a sound generating device configured to be in pressure contact with the diaphragm .

  According to the present invention, it is possible to obtain a more functionally configured sounding device.

  Embodiments of the present invention will be described below in detail with reference to the drawings. The timepiece device 1 shown in FIGS. 1 to 3 is a clockwork timepiece in which a doll driving device 20 and a sounding device 100 are housed in a housing 10 and a timepiece body 30 is provided on the housing 10. The timepiece device 1 is controlled by a control means (not shown), and at a predetermined time, the doll driving device 20 drives the doll 21 and the sounding device 100 is activated. A window portion 11 that exposes the doll 21 and the sounding device 100 is provided on the front surface of the housing 10. A transparent plate is fitted in the window portion 11. In addition, a sound hole 12 for diffusing sound generated by the sound producing device 100 to the outside of the housing 10 and a sound hole opening / closing means 13 for opening and closing the sound hole 12 are provided on the rear surface of the housing 10. Yes. The configuration of the doll driving device 20 is not particularly limited, but in this example, the doll 21 driven by a motor is configured to play a musical instrument in accordance with the sound generated by the sounding device 100.

  As shown in FIGS. 4 to 6, the sounding device 100 includes a sounding body 110, a sounding body vibrating means 120 that vibrates the sounding body 110, and a volume of sound generated by the sounding body 110 by contacting the sounding body 110. And a vibration reducing member 130 for reducing the vibration. The sounding body 110, the sounding body vibrating means 120, and the vibration reducing member 130 are housed inside the housing 10.

  In the case of this example, the sounding body 110 is formed by fixing a rod bell 111 to the diaphragm 112 via a support 113. The rod bell 111, the diaphragm 112, and the support body 113 are metal members. The sounding body vibrating means 120 is provided with a tree 122 provided so as to be able to swing at a predetermined position, and a solenoid 121 for operating the tree 122. The sound producing device 1 is configured to generate a sound of a predetermined tone color by striking the rod bell 111 with a wooden wall 122 to vibrate the rod bell 111, the diaphragm 112, and the support body 113. In addition, a plurality of bar bells 111 are arranged in the diaphragm 112 in the width direction, and a solenoid 121 and a wooden bar 122 are respectively provided for each bar bell 111. Each bell produces a different timbre. The control means controls the timing at which each solenoid 121 is actuated, thereby generating a combination of timbres.

  The vibration reducing member 130 is formed by providing a buffer body 132 on one surface of the plate 131. As the buffer 132, urethane is adopted. The volume of the sound generated by the sounding body 110 is reduced by pressing the buffer body 132 against the diaphragm 112. By pressing the buffer 132 against the diaphragm 112, the sound volume is reduced and the reverberation is also eliminated. The vibration reducing member 130 moves in conjunction with the sound hole opening / closing means 13 so that it is separated from the sounding body 110 when the sound hole 12 is opened, and abuts against the sounding body 110 when the sound hole 12 is closed. .

  The sound hole opening / closing means 13 is configured such that a shielding plate 13c provided with a through hole 13a and an operation portion 13b is movably mounted inside the back surface of the housing 10. A guide portion (not shown) that guides the shielding plate 13c so as to be slidable in the left-right direction is provided at an important point of the housing 10. When the shielding plate 13c is moved to the left or right, the through hole 13a and the sound hole 12 are matched, and the sound hole 12 is opened (see FIG. 6A). Moreover, if the shielding board 13c is moved to the other of right and left, the through-hole 13a and the sound hole 12 will shift | deviate and the sound hole 12 will be in the closed state (refer FIG.6 (b)). The operation unit 13b is a boss that penetrates the shielding plate 13c. A long hole 10a that projects the operating portion 13b to the outside is provided at a key point of the housing 10, and the shielding plate 13c is configured to move by operating the operating portion 13b to the left and right.

  The vibration reducing member 130 described above is provided between the vibration plate 112 and the shielding plate 13c. The diaphragm 112 is provided with a locking portion 133 that supports the lower portion of the vibration reducing member 130. The vibration reduction member 130 is supported by the locking portion 133 at the lower portion thereof, and tends to fall to the opposite side of the diaphragm 112 by its own weight. The operation portion 13 b of the sound hole opening / closing means 13 protrudes toward the vibration reducing member 130 and is in contact with the plate 131 of the vibration reducing member 130. That is, the vibration reducing member 130 is tilted with the locking portion 133 as a base point, and the angle of the vibration reducing member 130 with respect to the diaphragm 112 is regulated by the operation portion 13b.

  Further, the plate 131 of the vibration reducing member 130 is provided with a concave portion 134 corresponding to the operation portion 13b. In the state where the sound hole 12 is opened, the tip of the operation portion 13b enters the recess 134, and a gap is formed between the diaphragm 112 and the vibration reducing member 130 (see FIG. 6A). In the state where the sound hole 12 is closed, the tip of the operation portion 13b rides up from the recess 134, and the vibration reducing member 130 is pressed against the diaphragm 112 (see FIG. 6B).

  According to such a configuration, when the sound hole 12 is closed, not only the diffusion of the sound to the outside of the housing 10 can be suppressed, but also the sound itself generated from the sounding body 110 can be reduced. Further, since the vibration reducing member 130 moves in conjunction with the sound hole opening / closing means 13, there is an advantage that the vibration reducing member 130 can be brought into contact with the sounding body 110 in accordance with the purpose without performing a troublesome operation.

  In addition, it is needless to say that the configuration of each part in the present example can be appropriately changed in design within the technical scope described in the claims, and is not limited to that illustrated in the drawings. The sound producing device of this example is for hitting a rod, but the structure in which the vibration reducing member is moved in conjunction with the sound hole opening / closing means can also be applied to a music box for playing comb teeth.

  The sounding device of the present invention can be suitably used as a time signal for a clock or a sound source for a mechanism device.

1 is a front view showing a timepiece device according to an embodiment of the present invention. 1 is a side sectional view showing a timepiece device according to an embodiment of the present invention. 1 is a rear view showing a timepiece device according to an embodiment of the present invention. 1 is a side sectional view showing a sound producing device according to an embodiment of the present invention. It is explanatory drawing which concerns on the Example of this invention and shows a sound hole opening / closing means. FIG. 4 is a top sectional view showing a sound hole opening / closing means and a vibration reducing member according to an embodiment of the present invention, wherein (a) shows a state where the sound hole is opened, and (b) shows a state where the sound hole is closed. Yes.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Clock apparatus 10 Case 10a Long hole 11 Window part 12 Sound hole 13 Sound hole opening-and-closing means 13a Through-hole 13b Operation part 13c Shielding board 20 Doll drive apparatus 21 Doll 30 Clock body 100 Sounding apparatus 110 Sounding body 111 Bell bell 112 Diaphragm Reference Signs List 113 Support 120 Sound Generator Vibrating Mean 121 Solenoid 122 Inoki 130 Vibration Reduction Member 131 Plate 132 Buffer 133 Locking Section 134 Recess

Claims (1)

In a sounding device comprising a sounding body and sounding body vibration means for vibrating the sounding body, and generating sound by vibrating the sounding body by the sounding body vibration means,
The sounding device includes a vibration reducing member that reduces a volume of sound generated by the sounding body by contacting the sounding body, a sounding body, the sounding body vibrating means, and a housing that houses the vibration reducing member. With
The housing is provided with a sound hole and sound hole opening and closing means for opening and closing the sound hole,
The sound hole opening / closing means is formed by movably mounting a shielding plate inside the housing,
The sounding body includes a metal diaphragm,
The diaphragm is provided with a locking portion that supports the vibration reducing member,
The vibration reducing member is provided with a buffer on one side of a plate, and is located between the diaphragm and the shielding plate, which is linked to the sound hole opening / closing means and starts the locking portion. the by raisably, the said sound hole is opened away from the cushion said diaphragm, sound generating device in which the buffer member and the sound hole is closed is characterized in that the pressure-contact to said vibrating plate.

Images