JP2023147539A - Sound emitting device and clock - Google Patents

Abstract

To provide a sound emitting device capable of preventing resonance of a plate member to be inserted into an opening portion, and a clock including such a sound emitting device.SOLUTION: A sound emitting device 20 includes a housing having an opening portion 32 into which a logo plate is detachably inserted, a sound emitting unit 60 provided in the housing, a pair of rubber members 70 which are provided so as to be partially exposed into the opening portion 32, and pinch the logo plate while pressing the logo plate in a thickness direction. Even if vibrations occur in the housing with the logo plate inserted into the opening portion 32, the vibrations are absorbed by the rubber member 70 and can be prevented from being transmitted to the logo plate 40.SELECTED DRAWING: Figure 3

Description

The present invention relates to a sound emitting device and a clock.

2. Description of the Related Art Conventionally, watches have been known that include a sound emitting device for emitting an alarm sound or the like to the outside. For example, Patent Document 1 discloses a desk clock-type alarm clock in which an alarm source is provided in a housing. The case body of the housing is provided with a discharge section in which a plurality of discharge holes are formed for discharging an alarm generated from an alarm source to the outside.

Japanese Patent Application Publication No. 2016-217718

Incidentally, in the above-mentioned sound emitting device, an opening may be provided on the housing into which a plate-like member such as a logo plate is removably inserted. However, when the plate member is inserted into the opening, vibrations caused by the sound generated from the sound emitting device are transmitted to the plate member, and resonance occurs between the sound emitting port of the sound emitting device and the plate member. This may occur.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a sound emitting device capable of preventing resonance of a plate member inserted into an opening, and a timepiece equipped with such a sound emitting device.

The sound emitting device of the present invention includes a casing having an opening into which a plate member is detachably inserted, a sound emitting part provided in the casing, and a part of which is exposed in the opening. , a pair of elastic members that press and hold the plate-like member in the thickness direction thereof.

The timepiece of the present invention includes a display device that displays time, and the above-mentioned sound emitting device that is electrically connected to the display device and that emits sound from the sound emitting section in accordance with the predetermined time.

According to the present invention, it is possible to provide a sound emitting device capable of preventing resonance of a plate member inserted into an opening, and a timepiece equipped with such a sound emitting device.

FIG. 1 is a perspective view of a timepiece according to an embodiment. FIG. 2 is a plan view of the sound emitting device according to the embodiment, viewed from below. FIG. 1 is an exploded perspective view of a sound emitting device according to an embodiment. FIG. 3 is a plan view of the vicinity of the opening of the sound emitting device according to the embodiment, viewed from above. 5 is a vertical cross-sectional view of a cross section passing through a pair of rubber members in the front-rear direction at the opening of the sound emitting device according to the embodiment, (a) is a cross-sectional view of the VV cross section of FIG. 4, and (b) is a cross-sectional view of the cross section taken along the line VV in FIG. 4. , is a cross-sectional view corresponding to the VV cross-section of FIG. 4 in a state where the logo plate is inserted into the opening. 5 is a vertical cross-sectional view of a cross section passing through the rib portion in the left-right direction at the opening of the sound emitting device according to the embodiment; FIG. FIG. 5 is a cross-sectional view corresponding to the VI-VI cross section of FIG. 4 in a state where a logo plate is inserted into the portion. FIG. 3 is a perspective view of a holding portion provided in the upper case of the sound emitting device according to the embodiment, viewed from below. It is a perspective view of the holding part provided in the upper case of the sound emitting device according to the embodiment, viewed diagonally from the front side.

Embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, a watch 1 according to the present embodiment includes a display device 10 that digitally displays time, and a sound emitting device 20 that is electrically connected to the display device 10. Any display device 10 can be installed on the sound emitting device 20, and in this embodiment, a thin rectangular plate-shaped display device 10 is illustrated. The sound emitting device 20 can be used as an alarm sound emitting device for emitting an alarm sound of the clock 1 according to a predetermined time displayed on the display device 10, for example.

The sound emitting device 20 has a casing 30 in the shape of an oblong inverted truncated pyramid. A switch portion 22 for turning on and off the power of the timepiece 1 is provided on a part of the side surface of the housing 30. Further, on the front side of the upper surface 30a of the housing 30, there is provided an opening 32 that opens upward and into which a logo plate (plate-like member) 40 is detachably inserted. The attachment/detachment direction of the logo plate 40 corresponds to the up-down direction. Below, the side where the opening 32 of the casing 30 is provided is the front side of the sound emitting device 20, the opposite side is the rear side, and the side where the switch section 22 of the casing 30 is provided is the left side of the sound emitting device 20. , the opposite side will be described as the right side.

The logo plate 40 inserted into the opening 32 is, for example, a thin plate made of ABS resin, and a logo or the like corresponding to the display device 10 installed on the housing 30 is engraved on the front surface thereof. In addition, in this embodiment, the logo plate 40 is illustrated in which two notches 40a are provided on the lower edge at an interval in the left-right direction. Each notch 40a is open downward and has a substantially concave shape that gradually expands downward.

As shown in FIG. 2, the lower surface 30b of the housing 30 is provided with an adjustment section 24 on the left side and a sound emitting port 26 on the right side. The adjustment unit 24 is provided with switches for making various adjustments such as time adjustment of the clock 1. The sound emitting port 26 is composed of a plurality of sound emitting holes provided concentrically, and emits the alarm sound from the approximately circular sound emitting part 60 (see FIG. 3) provided inside the casing 30. The sound is emitted to the outside of 30. At the four corners of the lower surface 30b of the casing 30, installation rubber 28 is provided for placing the casing 30 flat on an installation surface.

As shown in FIG. 3, the housing 30 includes an upper case 30U provided on the upper side in a generally plate shape, and a lower case 30L in the shape of a substantially deep dish provided on the lower side. The upper case 30U is provided with an opening 32, a holding section 34, and a positioning section 36, which will be described later. In the space created between the upper case 30U and the lower case 30L when they are assembled (inside the housing 30), there are a control circuit board 50, a sound emitting section 60, a rubber member (elastic member) 70, A contact member 80 and the like are accommodated. The control circuit board 50 controls various functions in the watch 1. The sound emitting unit 60 is controlled by the control circuit board 50 and emits an alarm sound or the like to the outside of the casing 30 from the bottom surface of the sound emitting unit 60 through the sound emitting port 26 . The configurations of the rubber member 70 and the contact member 80 will be explained in detail later.

Next, the configuration of the opening 32 provided in the upper surface 30a of the housing 30 will be described in detail. As shown in FIG. 4, the opening of the opening 32 has a horizontally elongated substantially rectangular shape with its long sides extending in the left-right direction. The long and short side dimensions of the opening 32 are slightly larger than the left and right dimensions and thickness of the logo plate 40 to be inserted. The inside of the opening 32 is recessed into a concave shape having a bottom surface portion 32a and a side surface portion 32b. The bottom surface 32a of the opening 32 is made slightly smaller than the opening of the opening 32.

As shown in FIG. 3, holding portions 34 are provided on both left and right sides of the opening 32, in which a pair of rubber members 70 are accommodated and held. That is, two pairs of rubber members 70, a total of four rubber members 70, are held within the opening 32 in the left-right direction (direction perpendicular to the attachment/detachment direction and the thickness direction of the logo plate 40). Each rubber member 70 held by each holding part 34 has a substantially rectangular parallelepiped shape, and is arranged vertically in the holding part 34 with its thickness direction along the front-rear direction. As shown in FIGS. 7 and 8, each holding portion 34 has a substantially cylindrical portion 34a that extends across the bottom portion 32a and side portion 32b of the opening 32 in the front-rear direction. . The cylindrical portion 34a is provided so as to protrude below the bottom surface portion 32a. A partition wall portion 34b is provided at the lower portion of the cylindrical portion 34a to partition the inside of the holding portion 34 back and forth.

The partition wall portion 34b extends in the shape of a beam along the left-right direction at a substantially central portion of the cylindrical portion 34a in the front-rear direction. The upper surface of the partition wall 34b is located on the same plane as the bottom surface of the opening 32 (see FIG. 6(a)). By separating the cylindrical portion 34a with the partition wall portion 34b, two openings are provided at the lower end of the holding portion 34 at the front and rear. The two openings provided in the holding part 34 have a substantially rectangular shape along the outer peripheral surface of the rubber member 70 accommodated in the holding part 34 . Further, the inner surface of the cylindrical portion 34a has a shape that follows the outer shape of the rubber member 70. In addition, between each holding part 34 provided on both the left and right sides, a first screw hole 30H that opens downward in a substantially circular shape is provided adjacent to each cylindrical part 34a.

As shown in FIGS. 4 and 7, positioning portions 36 are provided on both left and right sides of the opening 32 and extend in the shape of a beam along the front-rear direction (the short side direction of the opening) to bridge the inside of the opening 32 back and forth. is provided. The positioning part 36 is located slightly below the opening end of the opening part 32, and is provided at approximately the center in the left-right direction within the holding part 34. Both front and rear ends of the positioning part 36 are connected to the cylindrical part 34a of the holding part 34. Therefore, both front and rear ends of the positioning portion 36 are not exposed from the opening 32 and are located below the front and rear peripheral portions 30c around the opening 32. Further, in the positioning portion 36, portions on both front and rear sides that are not exposed from the opening 32 (hereinafter referred to as “thin beam portions 36a”) and portions exposed from the opening 32 (hereinafter referred to as “thick beam portions 36b”). It is thinner than. The thin beam portion 36a and the thick beam portion 36b of the positioning portion 36 come into contact with the upper surface (the surface on the opening 32 side) of the rubber member 70 (see FIG. 5).

The thick beam portion 36b of the positioning portion 36 has a substantially central portion thereof in the front-rear direction as a connecting portion 36c that is connected to the partition wall portion 34b of the holding portion 34 (see FIG. 7). Therefore, the positioning portion 36 has an approximately T-shape as a whole when viewed from the left and right directions (see FIG. 5(a)). As shown in FIG. 5A, the distance from the thick beam portion 36b and the thin beam portion 36a to the lower end of the cylindrical portion 34a in the vertical direction substantially matches the height dimension of the rubber member 70. Further, the distance from the partition wall portion 34b to the inner surface of the cylindrical portion 34a in the front-rear direction substantially matches the thickness dimension of the rubber member 70. Therefore, the pair of rubber members 70 are accommodated in each holding portion 34 in parallel with each other and in contact with the inner surface of the cylindrical portion 34a, each partition wall portion 34b, and the positioning portion 36 without any gaps. ing. The rubber member 70 is held by the holding portion 34 in the front-back direction (thickness direction) and the left-right direction.

As shown in FIGS. 4 and 5(a), a pair of rubber members 70 housed in each holding portion 34 have opposing portions exposed within the opening 32, and other portions surrounding the opening 32. It is located below the section 30c. That is, the distance I1 between the pair of rubber members 70 in the front-back direction is slightly smaller than the front-back dimension I2 of the opening of the opening 32. Further, the distance I1 between the pair of rubber members 70 in the front-rear direction is slightly smaller than the thickness of the logo plate 40 inserted into the opening 32. Therefore, the logo plate 40 can be inserted into the opening 32 by pushing the logo plate 40 between the pair of rubber members 70 inside the opening 32 . When the logo plate 40 is inserted into the opening 32, the pair of rubber members 70 clamp the logo plate 40 while pressing it in the thickness direction (front-back direction).

Here, the interval I3 between both positioning parts 36 substantially matches the interval between both notches 40a provided in the logo plate 40. Further, the width of the thick beam portion 36b of each positioning portion 36 in the left-right direction substantially matches the notch width of each notch portion 40a in the left-right direction. Therefore, when the logo plate 40 is inserted into the opening 32, the positioning parts 36 fit into the notches 40a. Thereby, the logo plate 40 inserted into the opening 32 is positioned in the left-right direction (the direction perpendicular to the attachment/detachment direction and the thickness direction of the logo plate 40). In addition, by gradually expanding each notch 40a toward the bottom, even if the center positions of each notch 40a and each positioning part 36 in the left-right direction are slightly shifted, the logo can be placed on the opening 32. The plate 40 can be inserted, making it easy to insert the logo plate 40.

As shown in FIG. 3, a contact member 80 that covers the lower end of the holding portion 34 is attached to the lower side of the holding portion 34. As shown in FIG. The contact member 80 is a horizontally elongated substantially plate-shaped member whose long side extends in the left-right direction. Both front and rear ends of the contact member 80 rise shallowly upward (see FIG. 5). Second screw holes 80a having substantially circular openings are provided on both left and right sides of the contact member 80, respectively. The interval between both second screw holes 80a matches the interval between both first screw holes 30H. The contact member 80 is assembled to the lower side of the holding part 34 by inserting the mounting screws S into both the second screw holes 80a and screwing them into both the first screw holes 30H (FIGS. 5 and 6). reference).

In the process of assembling the housing 30, each rubber member 70 is press-fitted into the holding part 34 from the opening at the lower end of the holding part 34 until it comes into contact with the thin beam part 36a and the thick beam part 36b of the positioning part 36, and each rubber member 70 is housed in the holding part 34. After each rubber member 70 is housed in the holding part 34, the contact member 80 is assembled to the lower side of the holding part 34. By attaching the abutting member 80 to the lower side of the holding part 34, the upper surface of the abutting member 80 is connected to the lower surface (the surface opposite to the opening 32 side) of each rubber member 70 housed in the holding part 34. come into contact with This prevents each rubber member 70 housed in the holding part 34 from falling off from the holding part 34 downward.

As described above, the sound emitting device 20 according to the present embodiment includes the casing 30 having the opening 32 into which the logo plate 40 is detachably inserted, the sound emitting part 60 provided in the casing 30, and a part of the sound emitting device 20. A pair of rubber members 70 are provided so as to be exposed in the opening 32 and sandwich the logo plate 40 while pressing it in the thickness direction.

In the sound emitting device 20 according to the present embodiment configured as described above, by pushing the logo plate 40 into the opening 32 of the housing 30, the logo plate 40 is pressed between the pair of rubber members 70. be held between the two. Thereby, even if vibration occurs in the housing 30 with the logo plate 40 inserted into the opening 32, the vibration is absorbed by the rubber member 70, and the vibration is prevented from being transmitted to the logo plate 40. I can do it. Therefore, in the sound emitting device 20, even if the sound emitting part 60 and the opening 32 are provided in the same housing 30, resonance of the logo plate 40 inserted into the opening 32 can be prevented. .

Here, if the logo plate 40 is configured to be sandwiched between resin-molded walls within the opening 32, it is necessary to press fit the logo plate 40 into the opening 32. There is a possibility that cracks may occur in the logo plate 40 and the opening 32 due to the stress generated at this time. In contrast, the sound emitting device 20 of this embodiment has a configuration in which the logo plate 40 is sandwiched between the pair of rubber members 70 within the opening 32, so the stress is absorbed by each rubber member 70, and the logo plate 40 is sandwiched between the pair of rubber members 70 within the opening 32. It is possible to prevent the logo plate 40 and the opening 32 from cracking when the plate 40 is inserted into the opening 32.

Furthermore, in the sound emitting device 20, the housing 30 includes a holding portion 34 that holds the pair of rubber members 70 in the front-rear direction. Thereby, it is possible to prevent displacement of each rubber member 70 in the front-rear direction, thermal deformation, etc. due to repeated attachment and detachment of the logo plate 40 to and from the opening 32. Furthermore, in the sound emitting device 20 according to the present embodiment, the holding portion 34 holds the pair of rubber members 70 also in the left-right direction and the up-down direction. Therefore, misalignment, thermal deformation, etc. of each rubber member 70 can be more effectively prevented.

Moreover, in the sound emitting device 20, the housing 30 has a positioning part 36 that extends along the front-rear direction within the opening 32 and positions the logo plate 40 inserted into the opening 32 in the left-right direction. Thereby, the logo plate 40 can be inserted into the opening 32 while being positioned, and the inserted logo plate 40 can be prevented from shifting in the left-right direction.

Further, in the sound emitting device 20, the positioning portion 36 is provided in a form that comes into contact with a part of the upper surface of the rubber member 70. This can prevent upward displacement of each rubber member 70 due to repeated attachment and detachment of the logo plate 40 to and from the opening 32.

The sound emitting device 20 also includes a contact member 80 that is assembled to the housing 30 and comes into contact with the lower surface of the rubber member 70. Thereby, it is possible to prevent each rubber member 70 from shifting downward and falling off due to repeated attachment and detachment of the logo plate 40 to and from the opening 32. Furthermore, since the abutting member 80 is separate from the casing 30, the abutting member 80 can be easily removed from the casing 30, and each rubber member 70 can be replaced through the opening at the lower end of the holding part 34. It can be done easily.

Furthermore, in the sound emitting device 20, two sets of the pair of rubber members 70 are provided within the opening 32 in the left-right direction. Thereby, the logo plate 40 inserted into the opening 32 can be held between the pair of rubber members 70 at a plurality of locations. Therefore, the logo plate 40 can be stably held within the opening 32. Furthermore, since vibrations generated in the housing 30 are absorbed at multiple locations, resonance of the logo plate 40 inserted into the opening 32 can be effectively prevented.

Further, the watch 1 according to the present embodiment is electrically connected to a display device 10 that displays the time, and emits sound from the sound emitting unit 60 in accordance with a predetermined time. As a result, when vibration is generated in the housing 30 due to an alarm sound or the like emitted in the watch 1 at a predetermined time, the vibration is absorbed by the rubber member 70 . Therefore, it is possible to realize the watch 1 that can prevent resonance of the logo plate 40 inserted into the opening 32.

Note that the embodiments described above are presented as examples, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

1 Clock 10 Display device 20 Sound emitting device 22 Switch section 24 Adjustment section 26 Sound emitting port 28 Installation rubber 30 Housing 30H First screw hole 30L Lower case 30U Upper case 30a Upper surface 30b Lower surface 30c Peripheral section 32 Opening section 32a Bottom section 32b Side part 34 Holding part 34a Cylindrical part 34b Partition part 36 Positioning part 36a Thin beam part 36b Thick beam part 36c Connecting part 40 Logo plate 40a Notch part 50 Control circuit board 60 Sound emitting part 70 Rubber member 80 Contact member 80a 2nd screw hole S mounting screw

Claims (7)

a casing having an opening into which a plate-like member is detachably inserted;
a sound emitting section provided in the housing;
a pair of elastic members that are partially exposed in the opening and that press and hold the plate-like member in its thickness direction;
A sound emitting device characterized by: The sound emitting device according to claim 1, wherein the housing has a holding portion that holds the pair of elastic members in the thickness direction. The housing includes a positioning portion that extends along the thickness direction within the opening and positions the plate member inserted into the opening in a direction in which the plate member is attached and removed and in a direction substantially perpendicular to the thickness direction. The sound emitting device according to claim 1 or 2, characterized in that it has: 4. The sound emitting device according to claim 3, wherein the positioning portion is provided so as to come into contact with a part of the surface of the elastic member on the opening side. Any one of claims 1 to 4, further comprising an abutting member assembled to the casing and abutting at least a part of a surface of the elastic member opposite to the opening side. The sound emitting device described in . Any one of claims 1 to 5, wherein a plurality of the pair of elastic members are provided within the opening in a direction substantially perpendicular to the attachment/detachment direction and the thickness direction of the plate-like member. The sound emitting device according to item 1. a display device that displays the time;
The sound emitting device according to any one of claims 1 to 6, which is electrically connected to the display device and emits sound from the sound emitting section in accordance with the predetermined time.
A watch characterized by:

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