JP5584643B2 - Water drainage structure for intercom equipment - Google Patents

Description

  The present invention relates to a drainage structure in an interphone device such as an interphone slave for a visitor to call a resident.

  For example, in an intercom handset installed outdoors such as a front door, water droplets such as rainwater may enter the main body case through the speaker hole, and may adversely affect various electronic boards. For this reason, the intercom device has conventionally been provided with a drainage structure. As an example, there is a drainage structure as disclosed in Patent Document 1, for example.

JP 2009-212583 A

  However, the drainage structure may not be suitably employed depending on the shape of the speaker hole and the like. For example, as disclosed in Japanese Patent Application Laid-Open No. 2005-136700, a plurality of rectangular speaker holes are arranged in parallel in the vertical direction. In such intercom equipment, it is difficult to adopt the water draining structure disclosed in Patent Document 1 for the speaker holes except for the speaker hole at the lowest position, and the function effectively when used. There is a problem of not.

  Therefore, the present invention has been made in view of the above problems, and even in an interphone device in which a plurality of rectangular speaker holes are arranged in the vertical direction, water that is to be collected in each speaker hole is discharged to the discharge side. An object of the present invention is to provide a water draining structure in an intercom device that can be reliably pulled out.

In order to achieve the above object, the invention described in claim 1 of the present invention is directed to draining water in an interphone device in which a plurality of rectangular speaker holes are arranged in the vertical direction on the front surface of the main body case. A rectangular back plate corresponding to the shape of the speaker hole is provided behind each speaker hole at a predetermined interval, and a first width extending in a left-right direction along the upper side of the back plate is provided. a notch, while the along the lower side of the back plate in the lateral direction over a short width than the first notch the second notch Ru respectively provided on the inner surface of the front case configuring the front surface of the main body case, the speakers A gate member straddling the hole vertically is provided, a back plate protrudes from the gate member, and a guide rib that connects the gate members adjacent in the vertical direction is provided .
According to this configuration, since the lengths are different along the upper side and the lower side of the back plate, and the lower side is provided with a cutout shorter than the upper side, the water droplets that have entered from the speaker hole are the first. Further, the balance is lost by the second cutout, and it flows downward (that is, the discharge side) without accumulating in front of the back plate. In addition, the inner surface of the front case is provided with a gate member straddling each speaker hole up and down, a back plate is projected from the gate member, and a guide rib that connects adjacent gate members in the vertical direction is provided. The water droplets whose balance has been lost by the first and second cutouts are sequentially guided to the lower speaker holes along the guide ribs. Therefore, it is possible to surely drain the water to be collected in each speaker hole to the discharge side.

According to the present invention, the rectangular back plate corresponding to the shape of the speaker hole is provided behind the speaker holes at a predetermined interval, and the first width extending in the left-right direction along the upper side of the back plate is provided. Since the second notches are respectively provided in the left and right directions along the lower side of the back plate over a width shorter than that of the first notches, water drops that have entered through the speaker holes are caused by the first and second water drops. unbalanced by notches, lower without accumulating in front of the back plate (i.e., the discharge side) ing to flow into. In addition, the inner surface of the front case is provided with a gate member straddling each speaker hole up and down, a back plate is projected from the gate member, and a guide rib that connects adjacent gate members in the vertical direction is provided. The water droplets whose balance has been lost by the first and second cutouts are sequentially guided to the lower speaker holes along the guide ribs. Therefore, it is possible to surely drain the water to be collected in each speaker hole to the discharge side.

It is explanatory drawing which showed the intercom cordless handset from the front side. It is perspective explanatory drawing which showed the front case from the front side. It is perspective explanatory drawing which showed the front case from the front side. It is perspective explanatory drawing which showed the front case from the back side. It is explanatory drawing which expanded and showed the speaker hole location of the front case from back. It is explanatory drawing which showed the example which changed the notch length of the backplate.

  Hereinafter, a drainage structure in an intercom device according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory view showing an interphone slave device 1 as an example of an interphone device from the front.
The intercom handset 1 has a main body case composed of a front case 2 disposed on the front side and a rear case (not shown) disposed on the rear side. A microphone (not shown) for calling and a camera unit 3 for photographing visitors are installed. In addition, a speaker 4 for calling is installed at a substantially central portion in the main body case, and a call button 5 is provided below the speaker 4 so as to be able to be pushed. This speaker 4 includes a plurality of 5.0 mm square speaker holes 6, 6. And a speaker substrate (not shown) disposed on the substrate. Such an intercom handset 1 is installed on the wall surface of the entrance of a dwelling unit, and when a call button 5 is pushed in by a visitor, the room unit is not shown and the camera unit 3 is activated. Let's shoot visitors. Thereafter, when a response operation is performed in the living room master unit, the microphone and the speaker 4 are actuated so that a call can be made with the living room base unit.

  Here, the water draining structure provided in each speaker hole 6 which is a main part of the present invention will be described with reference to FIGS. 2 and 3 are perspective explanatory views showing the front case 2 from the front side, and FIG. 4 is a perspective explanatory view showing the front case 2 from the rear side. FIG. 5 is an explanatory view showing the speaker holes 6, 6... Of the front case 2 in an enlarged manner from the rear.

  Behind each speaker hole 6 is a gate-shaped gate member 11 straddling the speaker hole 6 up and down, and to the right from each gate member 11 (left when viewed from the rear), a predetermined interval from each speaker hole 6. A back plate 12 that covers each speaker hole 6 at a separated rear position is provided. The gate member 11 includes a pair of pillars projecting rearward from the positions of the upper and lower left ends (right end when viewed from the rear) of each speaker hole 6, and a bridge portion connecting the upper and lower pillars. It is provided integrally with the rear surface. Further, the protruding amount of each gate member 11 from the rear surface of the front case 2 (the protruding height of the column portion) is set to 3.0 mm. On the other hand, the back plate 12 protrudes from the erected portion of each gate member 11 and is formed in a rectangular plate shape corresponding to the shape of the speaker hole 6. Cutouts 13 and 14 are provided on the upper side and the lower side of the back plate 12 from the front end (left end when viewed from the rear) to the base end. The upper side notch 13 has a left / right width of 3.2 mm, and the lower side notch 14 has a left / right width of 2.2 mm. The upper side notch 13 has a lower width than the lower side notch 14. It is cut out to the end side (that is, the left-right width of the cutout 14 on the lower side is shorter than the cutout 13 on the upper side). Therefore, the width of the column on the upper side of the gate member 11 is shorter than the column on the lower side of the gate member 11, and when viewed in the vertical direction, the column on the side of the column of the gate member 11. As for the gap between the back plate 2 and the speaker hole 6 to be formed, the upper gap is wider in the left-right direction than the lower gap. In addition, between the speaker holes 6 and 6 arranged vertically on the rear surface of the front case 2, a guide rib 15 protrudes rearward so as to connect the pillar portions of the upper and lower gate members 11 and 11.

  According to the drainage structure having the above-described structure, the water droplets entering the speaker hole 6 and trying to collect in front of the back plate 12 are notches 13 having different left and right widths provided along the upper and lower sides of the back plate 12. , 14, 14 and 14 are sequentially guided to the gate member 11 and the back plate 12 of the lower speaker hole 6 while passing through the guide ribs 15. Discharged. In addition, the present applicant conducted a water draining experiment in the same manner by changing the lengths of the upper-side cutout 13 and the lower-side cutout 14 from those of the above embodiment. However, as shown in FIG. 6A, the lower notch 14 is formed longer than the notch width of the upper notch 13 (as opposed to the above embodiment), or FIG. In the case where the upper and lower cutouts 13 and 14 have the same cutout width as shown in FIG. 4), water droplets that are to be collected in front of the back plate 12 cannot be effectively guided to the discharge side.

  According to the water draining structure in the interphone slave unit 1 as described above, a predetermined number of speaker holes 6 are arranged from the speaker holes 6 to a plurality of square speaker holes 6 arranged in the vertical direction and in a plurality of rows in the horizontal direction. A rectangular back plate 12 corresponding to the shape of the speaker hole 6 is provided on the rear side with a gap of, and notches 13 and 14 are formed along the upper and lower sides of the back plate 12. The left and right width of the notch 14 is made shorter than the left and right width of the notch 13 on the upper side. Therefore, water droplets that enter through the speaker holes 16 and try to accumulate in front of the back plate 12 can be effectively guided downward (that is, on the discharge side).

  Further, the back plate 12 protrudes from the gate member 11 straddling the speaker holes 6 in the vertical direction, and the guide ribs 15 are provided so as to connect the gate members 11, 11 aligned in the vertical direction. Thus, the water droplets whose balance has been lost are guided to the lower speaker holes 6 while passing along the guide ribs 15, so that the water droplets that are to accumulate in front of the back plate 12 can be more smoothly guided to the discharge side.

  The drainage structure in the intercom device according to the present invention is not limited to the aspect of the above embodiment, and the configuration of the entire interphone device as well as the shape of the speaker hole and the presence / absence of guide ribs are not limited to this. The present invention can be changed as needed without departing from the spirit of the invention.

For example, in the above embodiment, the speaker hole 6 has a square shape, but there is no problem even if the rectangular shape is long in the vertical direction or the horizontal direction, and the shape of the back plate 12 can be changed as appropriate according to the shape of the speaker hole 6. der Ru.

Furthermore, the presence or absence of the guide rib 15 can be changed as appropriate. In the above embodiment, the gate member 11 is provided so as to straddle the speaker hole 6 at the left end position of the speaker hole 6. The installation position of the gate member 11 can be appropriately changed, for example, by providing the gate member 11 so as to straddle the hole 6 and projecting the back plate 12 from the gate member 11 to the left.
In addition, although the intercom handset 1 which is an example of the interphone device is described, the interphone device of the present invention is installed in the dwelling unit as long as a plurality of square speaker holes are arranged in the vertical direction. The present invention can be favorably applied to other intercom devices such as a living room base unit, telephone devices, and collective entrance intercom systems constituting a collective housing intercom system.

  1 ・ ・ Interphone cordless handset (interphone equipment) 2 ・ ・ Front case (main body case) 4 ・ ・ Speaker, 6 ・ ・ Speaker hole, 11 ・ ・ Gate member, 12 ・ ・ Back plate, 13, 14 ・ ・ Cut Missing, 15 ... Guide rib.

Claims (1)

A water drainage structure in an interphone device in which a plurality of rectangular speaker holes are arranged in the vertical direction on the front surface of the main body case,
A rectangular back plate corresponding to the shape of the speaker hole is provided behind each speaker hole at a predetermined interval, and a first notch extending in a left-right direction along the upper side of the back plate is provided. the while over the first cut shorter width than outs in the lateral direction along the lower side of the back plate Ru provided second notch respectively,
A gate member is provided on the inner surface of the front case that constitutes the front surface of the main body case so as to straddle the speaker holes. The back plate projects from the gate member and connects adjacent gate members in the vertical direction. A drainage structure for an intercom device, characterized in that a guide rib is provided .

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