Sound emission device and clock

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

Technical Field

[0001] The present invention relates to a sound-emitting device and a clock.

Background Art

[0002] Conventionally, a clock provided with a sound-emitting device for emitting an alarm sound or the like to the outside is known. For example, Patent Document 1 discloses a desktop clock-type wake-up clock in which an alarm sound source is provided in a housing. A housing case body is provided with a discharge portion in which a plurality of discharge holes for discharging an alarm generated from the alarm sound source to the outside are formed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the above-described sound-emitting device, an opening into which a plate-like member such as a logo plate is detachably inserted may be provided on the housing. However, in a state where the plate-like member is inserted into the opening, vibration caused by the sound generated from the sound-emitting device is transmitted to the plate-like member, and resonance may occur between the sound-emitting port of the sound-emitting device and the plate-like member.

[0005] 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-like member inserted into an opening and a clock provided with such a sound-emitting device.

Means for Solving the Problems

[0006] The sound-emitting device of the present invention comprises a housing having an opening into which a plate-shaped member is detachably inserted, a sound-emitting section provided in the housing, and a pair of elastic members provided such that a portion of them is exposed within the opening, and which press and clamp the plate-shaped member in its thickness direction. The housing has a positioning part that extends along the thickness direction within the opening and positions the plate-shaped member inserted into the opening in a direction substantially perpendicular to the attachment / detachment direction of the plate-shaped member and the thickness direction. ru.

[0007] The clock of the present invention comprises a display device for displaying the time, and a sound-emitting device electrically connected to the display device, which emits sound from the sound-emitting section according to a predetermined time. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a sound emission device capable of preventing resonance of a plate-shaped member inserted into an opening, and a clock equipped with such a sound emission device. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of the clock according to the embodiment. [Figure 2] This is a plan view of the sound emission device according to the embodiment, viewed from below. [Figure 3] This is an exploded perspective view of a sound emission device according to an embodiment. [Figure 4] This is a plan view of the vicinity of the opening of the sound emission device according to the embodiment, viewed from above. [Figure 5] This is a longitudinal cross-sectional view of the opening of the sound-emitting device according to the embodiment, showing a cross-section through which a pair of rubber members pass in the front-to-back direction. (a) is a cross-sectional view of the VV section in Figure 4, and (b) is a cross-sectional view corresponding to the VV section in Figure 4 with the logo plate inserted into the opening. [Figure 6] This is a longitudinal cross-sectional view of the opening of the sound-emitting device according to the embodiment, passing through the rib portion in the left-right direction, where (a) is a cross-sectional view of the VI-VI section in Figure 4, and (b) is a cross-sectional view corresponding to the VI-VI section in Figure 4 with the logo plate inserted into the opening. [Figure 7] This is a perspective view from below of the holding portion provided on the upper case of the sound emission device according to the embodiment. [Figure 8] This is a perspective view of the holding portion provided on the upper case of the sound emission device according to the embodiment, viewed from the diagonal front side. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described with reference to the drawings. As shown in Figure 1, the clock 1 according to this embodiment includes a display device 10 that digitally displays the time and a sound emitter 20 that is electrically connected to the display device 10. The display device 10 can be any type that is installed on the sound emitter 20, and in this embodiment, a thin rectangular plate-shaped display device 10 is exemplified. The sound emitter 20 can be used, for example, as an alarm emitter for emitting an alarm sound for the clock 1 according to a predetermined time displayed on the display device 10.

[0011] The sound-emitting device 20 has a horizontally elongated, inverted truncated pyramidal housing 30. A switch 22 for turning the power of the clock 1 on and off is provided on a part of the side of the housing 30. In addition, an opening 32 is provided on the front side of the top surface 30a of the housing 30, which opens upward and into which a logo plate (plate-shaped member) 40 is detachably inserted. The direction in which the logo plate 40 is attached and detached coincides with the up and down direction. In the following description, the side of the housing 30 with the opening 32 will be referred to as the front side of the sound-emitting device 20, the opposite side as the rear side, the side of the housing 30 with the switch 22 will be referred to as the left side of the sound-emitting device 20, and the opposite side as the right side.

[0012] The logo plate 40, which is inserted into the opening 32, is, for example, a thin plate made of ABS resin, and a logo corresponding to the display device 10 installed on the housing 30 is engraved on its front surface. In this embodiment, the logo plate 40 is shown as having two notches 40a spaced apart in the left-right direction at its lower edge. Each notch 40a is open downwards and is cut out in a roughly concave shape so as it gradually widens towards the bottom.

[0013] As shown in Figure 2, the lower surface 30b of the housing 30 is provided with an adjustment unit 24 on the left and a sound vent 26 on the right. The adjustment unit 24 is equipped with switches for making various adjustments, such as adjusting the time of the clock 1. The sound vent 26 consists of multiple sound vents arranged concentrically, and emits the alarm sound from the substantially circular sound vent 60 (see Figure 3) located inside the housing 30 to the outside of the housing 30. Mounting rubbers 28 are provided at the four corners of the lower surface 30b of the housing 30 for laying the housing 30 flat on a surface.

[0014] As shown in Figure 3, the housing 30 has a roughly plate-shaped upper case 30U located on the upper side and a roughly deep dish-shaped lower case 30L located on the lower side. The upper case 30U is provided with an opening 32, a holding part 34 (described later), and a positioning part 36. The space between the upper case 30U and the lower case 30L (inside the housing 30) that is created when the two are assembled houses a control circuit board 50, a sound emitting unit 60, a rubber member (elastic member) 70, a contact member 80, etc. The control circuit board 50 controls various functions of the clock 1. The sound emitting unit 60 is controlled by the control circuit board 50 and emits alarm sounds, etc., from its lower surface through a sound emitting port 26 to the outside of the housing 30. The configuration of the rubber member 70 and the contact member 80 will be described in detail later.

[0015] Next, the configuration of the opening 32 provided on the upper surface 30a of the housing 30 will be described in detail. As shown in Figure 4, the opening of the opening 32 is a horizontally elongated, roughly rectangular shape with the left-right direction as the longer side. The dimensions of the opening 32 in the long-side direction and the short-side direction are slightly larger than the left-right direction and the thickness dimensions of the logo plate 40 into which it is inserted. The inside of the opening 32 is recessed in a concave shape, having a bottom surface 32a and side surfaces 32b. The bottom surface 32a of the opening 32 is slightly smaller than the opening of the opening 32.

[0016] As shown in FIG. 3, on both the left and right sides of the opening 32, holding portions 34 for accommodating and holding a pair of rubber members 70 are provided respectively. That is, within the opening 32, two pairs of rubber members 70, a total of four rubber members 70, are held across the left - right direction (a direction orthogonal to the attaching / detaching direction and the thickness direction of the logo plate 40). Each rubber member 70 held in each holding portion 34 is substantially rectangular parallelepiped - shaped, and is vertically disposed within the holding portion 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 cylindrical portion 34a provided so as to straddle the bottom surface portion 32a and the side surface portion 32b of the opening 32 in the front - rear direction. The cylindrical portion 34a is provided so as to project downward from the bottom surface portion 32a. In the lower portion of the cylindrical portion 34a, a partition portion 34b for separating the inside of the holding portion 34 front - rear is provided.

[0017] The partition portion 34b extends in a beam - like shape along the left - right direction at approximately the center in the front - rear direction of the cylindrical portion 34a. The upper surface of the partition portion 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 portion 34b, two openings are provided at the lower end of the holding portion 34 front - rear. The two openings provided in the holding portion 34 are substantially rectangular - shaped along the outer peripheral surface of the rubber member 70 accommodated in the holding portion 34. Also, the inner surface of the cylindrical portion 34a is shaped along the outer shape of the rubber member 70. In addition, between the holding portions 34 provided on both the left and right sides, first screw holes 30H each opening downward in a substantially circular shape adjacent to each cylindrical portion 34a are provided respectively.

[0018] As shown in FIGS. 4 and 7, positioning portions 36 extending in a beam shape along the front - rear direction (the short - side direction of the opening) are provided on both the left and right sides inside the opening 32 in a form that bridges the inside of the opening 32 in the front - rear direction. The positioning portions 36 are located slightly below the opening ends of the opening 32 and are provided at substantially the center in the left - right direction inside the holding portion 34. Both the front and rear ends of the positioning portion 36 are connected to the cylindrical portion 34a of the holding portion 34. Therefore, both the front and rear ends of the positioning portion 36 are not exposed from the opening 32 and are in a state of being located below the front - rear peripheral portions 30c around the opening 32. Further, the positioning portion 36 has portions on both the front and rear sides that are not exposed from the opening 32 (hereinafter referred to as "thin beam portions 36a") and are thinner than the portions exposed from the opening 32 (hereinafter referred to as "thick beam portions 36b"). The thin beam portions 36a and thick beam portions 36b of the positioning portion 36 abut on the upper surface (the surface on the opening 32 side) of the rubber member 70 (see FIG. 5).

[0019] The thick beam portion 36b of the positioning portion 36 has a connecting portion 36c at its substantially central portion in the front - rear direction that is connected to the partition wall portion 34b of the holding portion 34 (see FIG. 7). Therefore, the positioning portion 36 has a substantially T - shape as a whole when viewed from the left - right direction (see FIG. 5(a)). As shown in FIG. 5(a), the distance from the thick beam portion 36b and the thin beam portion 36a in the vertical direction to the lower end portion of the cylindrical portion 34a substantially coincides with the height dimension of the rubber member 70. Also, the distance from the partition wall portion 34b to the inner surface of the cylindrical portion 34a in the front - rear direction substantially coincides with the thickness dimension of the rubber member 70. For this reason, a pair of rubber members 70 are accommodated in each holding portion 34 in parallel with each other in a state of abutting without gaps against the inner surface of the cylindrical portion 34a, each partition wall portion 34b, and the positioning portion 36. The rubber member 70 is held in the front - rear direction (thickness direction) and the left - right direction by the holding portion 34.

[0020] As shown in Figures 4 and 5(a), the pair of rubber members 70 housed in each holding portion 34 have opposing portions exposed within the opening 32, while the other portions are located below the peripheral portion 30c of the opening 32. That is, the distance I1 between the pair of rubber members 70 in the front-rear direction is slightly smaller than the front-rear dimension I2 of the opening 32. Furthermore, 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 it 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 and press the logo plate 40 in its thickness direction (front-rear direction).

[0021] Here, the distance I3 between the two positioning parts 36 is approximately equal to the distance between the two notches 40a provided on the logo plate 40. Also, the width in the left-right direction of the thick beam portion 36b of each positioning part 36 is approximately equal to the width of the notch in the left-right direction of each notch 40a. Therefore, when the logo plate 40 is inserted into the opening 32, both positioning parts 36 fit into the two notches 40a. This positions the logo plate 40 inserted into the opening 32 in the left-right direction (a direction perpendicular to the insertion / removal direction and thickness direction of the logo plate 40). Furthermore, because each notch 40a gradually expands as it moves downward, the logo plate 40 can be inserted into the opening 32 even if the left-right center positions of each notch 40a and each positioning part 36 are slightly misaligned, making it easier to insert the logo plate 40.

[0022] As shown in Figure 3, a contact member 80 covering the lower end of the holding portion 34 is attached to the lower side of the holding portion 34. The contact member 80 is a horizontally elongated, roughly plate-shaped member with the left-right direction as its longer side. Both the front and rear ends of the contact member 80 are slightly raised upwards (see Figure 5). On both the left and right sides of the contact member 80, there are second screw holes 80a that open in a roughly circular shape. The distance between the two second screw holes 80a is the same as the distance between the two first screw holes 30H. The contact member 80 is assembled to the lower side of the holding portion 34 by inserting mounting screws S through the two second screw holes 80a and screwing them into the two first screw holes 30H (see Figures 5 and 6).

[0023] During the assembly process of the housing 30, each rubber member 70 is press-fitted into the holding portion 34 through the opening at the lower end of the holding portion 34 until it contacts the thin beam portion 36a and the thick beam portion 36b of the positioning portion 36, thereby housing each rubber member 70 within the holding portion 34. After housing each rubber member 70 in the holding portion 34, the contact member 80 is assembled to the lower side of the holding portion 34. With the contact member 80 attached to the lower side of the holding portion 34, the upper surface of the contact member 80 contacts the lower surface (the side opposite to the opening 32) of each rubber member 70 housed in the holding portion 34. This prevents each rubber member 70 housed in the holding portion 34 from falling out of the holding portion 34.

[0024] As described above, the sound emission device 20 according to this embodiment comprises a housing 30 having an opening 32 into which a logo plate 40 is detachably inserted, a sound emission section 60 provided in the housing 30, and a pair of rubber members 70 provided such that a portion of them is exposed inside the opening 32, and which press and clamp the logo plate 40 in its thickness direction.

[0025] In the sound emission device 20 according to this embodiment, which has the configuration described above, the logo plate 40 is pressed into the opening 32 of the housing 30, thereby being pressed and sandwiched between a pair of rubber members 70. As a result, even if vibration occurs in the housing 30 while the logo plate 40 is inserted into the opening 32, the vibration is absorbed by the rubber members 70, preventing it from being transmitted to the logo plate 40. Therefore, even if the sound emission device 20 has a configuration in which the sound emission section 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.

[0026] If the logo plate 40 were to be sandwiched between resin-molded walls within the opening 32, it would be necessary to press-fit the logo plate 40 into the opening 32, and the stress generated during this press-fitting process could cause cracks in the logo plate 40 or the opening 32. In contrast, the sound emission device 20 of this embodiment is configured such that the logo plate 40 is sandwiched between a pair of rubber members 70 within the opening 32. As a result, the stress is absorbed by each rubber member 70, preventing cracks from occurring in the logo plate 40 or the opening 32 when the logo plate 40 is inserted into the opening 32.

[0027] Furthermore, in the sound emission device 20, the housing 30 has a holding portion 34 that holds a pair of rubber members 70 in the front-rear direction. This prevents displacement of each rubber member 70 in the front-rear direction and thermal deformation caused by repeated attachment and detachment of the logo plate 40 to the opening 32. Moreover, in the sound emission device 20 according to this embodiment, the holding portion 34 also holds the pair of rubber members 70 in the left-right and up-down directions. Therefore, displacement of each rubber member 70 and thermal deformation can be prevented more effectively.

[0028] Furthermore, in the sound emission device 20, the housing 30 has a positioning part 36 that extends along the front-to-back direction within the opening 32 and positions the logo plate 40 inserted into the opening 32 in the left-to-right direction. This allows the logo plate 40 to be inserted while being positioned within the opening 32, and prevents the inserted logo plate 40 from shifting in the left-to-right direction.

[0029] Furthermore, in the sound emission device 20, the positioning part 36 is provided in a manner that it abuts against a part of the upper surface of the rubber member 70. This prevents upward displacement of each rubber member 70 due to repeated attachment and detachment of the logo plate 40 to the opening 32.

[0030] Furthermore, the sound emission device 20 is equipped with a contact member 80 that is assembled to the housing 30 and contacts the lower surface of the rubber member 70. This prevents downward displacement and downward detachment of each rubber member 70 due to repeated attachment and detachment of the logo plate 40 to the opening 32. In addition, since the contact member 80 is separate from the housing 30, the contact member 80 can be easily removed from the housing 30, and each rubber member 70 can be easily replaced through the opening at the lower end of the holding part 34.

[0031] Furthermore, in the sound emission device 20, two pairs of rubber members 70 are provided within the opening 32, extending in the left-right direction. This allows the logo plate 40, which is inserted into the opening 32, to be sandwiched between the pairs of rubber members 70 at multiple locations. As a result, the logo plate 40 can be stably held within the opening 32. Moreover, 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.

[0032] Furthermore, the clock 1 according to this embodiment includes a display device 10 that displays the time, and a sound-emitting unit 60 that is electrically connected to the display device 10 and emits sound according to a predetermined time. As a result, if vibration occurs in the housing 30 due to the alarm sound or the like emitted by the clock 1 according to a predetermined time, the vibration is absorbed by the rubber member 70. Therefore, it is possible to realize a clock 1 that can prevent resonance of the logo plate 40 inserted into the opening 32.

[0033] The embodiments described above are presented as examples only 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 modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and essence of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols]

[0034] 1 Clock 10 Display Device 20 Sound emission device 22 Switch section 24 Adjustment section 26 Sound outlet 28 Mounting rubber 30 Casing 30H First screw hole 30L Lower case 30U Upper case 30a Top surface 30b Bottom surface 30c Peripheral area 32 Opening 32a Bottom part 32b Side part 34 Holding part 34a Cylindrical section 34b Partition section 36 Positioning section 36a Thin beam section 36b Thick beam part 36c Connecting part 40 Logo plate 40a Notch 50 Control circuit board 60 Sound emission section 70 Rubber component 80 Contact component 80a Second screw hole S Mounting screw

Claims

1. A housing having an opening into which a plate-shaped member is detachably inserted, The sound-emitting section provided in the housing, It comprises a pair of elastic members provided such that a portion of them is exposed within the opening, and which press and clamp the plate-shaped member in the thickness direction thereof, The housing has a positioning part that extends along the thickness direction within the opening and positions the plate-shaped member inserted into the opening in a direction substantially perpendicular to the attachment / detachment direction of the plate-shaped member and the thickness direction. A sound emission device characterized by the following features.

2. The sound emission device according to claim 1, characterized in that the housing has a holding portion that holds the pair of elastic members in the thickness direction.

3. The sound emission device according to claim 1 or 2, characterized in that the positioning portion is provided in a manner that it abuts against a part of the surface of the elastic member on the opening side.

4. The sound emission device according to any one of claims 1 to 3, further comprising a contact member assembled to the housing and in contact with at least a portion of the surface of the elastic member opposite to the opening side.

5. The sound emitting device according to any one of claims 1 to 4, characterized in that the pair of elastic members are provided in multiple sets within the opening in a direction substantially perpendicular to the attachment / detachment direction of the plate-shaped member and the thickness direction.

6. A display device that shows the time, A sound-emitting device according to any one of claims 1 to 5, which is electrically connected to the display device and emits sound from the sound-emitting section according to a predetermined time, comprises A watch characterized by its features.

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