Intercom equipment

Abstract

To provide an intercom device comprising an indirect lighting part for lighting a fron side of a main body case by an indirect light using an LED as a light source, and includes an unconventional novel design.SOLUTION: In an indirect lighting part, an LED 28 is installed at a position where it is not overlapped with a notification sound hole 38 in a front view at a front surface of a main substrate 15, and the notification sound hole 38 lights the front side of a main body case by an indirect light using the LED 28 as a light source. Therefore, the construction can be rationalized, and an interphone slave 1 can be miniaturized. In addition, a novel exterior appearance of them can be realized, and can be viewed even in a bright time such as a day time, and has high usability because the indirect lighting part that a depth side of the notification sound hole 38 dully lights is provided instead of a direct lighting part.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an intercom device such as an intercom slave unit that is installed on the wall of an entrance, for example. [Background technology]

[0002] Conventionally, intercom devices have various built-in LEDs, such as an LED that functions as a power indicator light (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-46178 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been a demand for a variety of designs for intercom equipment, and there is a demand for lighting sections other than the conventional direct lighting section, such as those that illuminate the front of the main body case with direct light from an LED light source.

[0005] Therefore, the present invention has been made in consideration of the above problems, and aims to provide an intercom device with an unprecedented and innovative design, which is equipped with an indirect lighting section that illuminates the front of the main body case with indirect light emitted from an LED as an illumination source. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides an intercom device having a built-in speaker in the main body case and a sound alarm hole on the front of the main body case for alarming the sound emitted by the speaker, wherein an LED is installed within the main body case in a position that does not overlap with the sound alarm hole when viewed from the front, and the sound alarm hole is an indirect lighting section that illuminates the front of the main body case with indirect light emitted from the LED. According to the invention of claim 1, an LED is installed in the main body case at a position that does not overlap with the sound alarm hole when viewed from the front, and the sound alarm hole is an indirect lighting section that illuminates the front of the main body case with indirect light emitted from the LED, so that the intercom device has a novel appearance, and the structure can be streamlined, allowing for miniaturization of the intercom device, etc. Furthermore, because the back side of the sound alarm hole glows dimly, when used as a power indicator light, it is easy to see even in bright light such as daytime, and is easy to use. [Effects of the Invention]

[0007] According to the present invention, an LED is installed within the main body case in a position that does not overlap with the sound alarm hole when viewed from the front, and the sound alarm hole is an indirect lighting section that illuminates the front of the main body case with indirect light emitted from the LED, so that the intercom device has a novel appearance, and the structure can be streamlined, allowing for the intercom device to be made smaller, etc. Furthermore, because the back side of the sound alarm hole glows dimly, when used as a power indicator light, it is easy to see even in bright light such as daytime, and is easy to use. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective explanatory view showing the intercom handset from the upper front side. [Figure 2] FIG. 2 is a perspective explanatory view showing the intercom handset from the lower front side. [Figure 3] FIG. 2 is a perspective explanatory view showing the intercom handset in a disassembled state from the front side. [Figure 4]FIG. 2 is a perspective explanatory view showing the intercom handset in a disassembled state from the rear side. [Figure 5] FIG. 2 is an explanatory diagram showing the mounting frame from the front side. [Figure 6] 1A and 1B are explanatory perspective views showing the mounting frame, in which FIG. 1A shows the mounting frame from the front side and FIG. 1B shows the mounting frame from the rear side. [Figure 7] 10 is an explanatory diagram showing a vertical cross section of a portion near a speaker unit of the intercom handset; FIG. [Figure 8] 10 is an explanatory diagram showing a horizontal cross section of a portion near a speaker unit of the intercom handset; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An intercom slave unit according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0010] FIG. 1 is an explanatory perspective view of the intercom handset 1 shown from the upper front side. FIG. 2 is an explanatory perspective view of the intercom handset 1 shown from the lower front side. FIG. 3 is an explanatory perspective view of the intercom handset 1 shown from the front side in a disassembled state. FIG. 4 is an explanatory perspective view of the intercom handset 1 shown from the rear side in a disassembled state. FIG. 5 is an explanatory view of the mounting frame 14 shown from the front side. FIG. 6 is an explanatory perspective view of the mounting frame 14, with (a) shown from the front side and (b) shown from the rear side. FIG. 7 is an explanatory view showing a vertical cross section of the intercom handset 1 near the speaker unit 7. FIG. 8 is an explanatory view showing a horizontal cross section of the intercom handset 1 near the speaker unit 7.

[0011] Intercom handset 1 comprises a main body case, which is composed of a front case 2 disposed at the front and a rear case 3 attached to the rear side of front case 2, and a decorative cover 4 attached to the front of the main body case. A lens 9A of a camera 9 is exposed at the top front of the main body case, forming an imaging unit 5 for capturing images of the surroundings. A microphone unit 6 for communication is provided to the right of imaging unit 5. A calling unit 10 is provided below imaging unit 5, allowing visitors to call the resident. A speaker unit 7 for communication, including a speaker 8 built into the main body case, is provided further below calling unit 10. This intercom handset 1 is installed on the wall of the entrance of a residence, and when a visitor holds their hand over or presses calling unit 10, it activates imaging unit 5 to capture images of the surroundings, including the visitor, and calls an intercom master unit (not shown) installed in the residence. The main body case is not translucent.

[0012] Here, the speaker unit 7, which is the main part of the present invention, will be described. The speaker unit 7 comprises a speaker 8, a mounting frame 14 for mounting the speaker 8 inside the main body case, a main board 15 arranged behind the mounting frame 14, a sound alarm space 37 formed in front of the speaker 8 inside the main body case, and a sound alarm hole 38 that connects the sound alarm space 37 to the external space of the main body case.

[0013] The mounting frame 14 is molded as a frame body made of a translucent synthetic resin, and has speaker grid holes 35, 35·· formed in the lower part of the mounting frame 14. Furthermore, speaker mounting portions 36 for mounting speakers 8 are provided on the rear surface of the mounting frame 14 so as to surround the speaker grid holes 35, 35··. Furthermore, on the front surface of the mounting frame 14, on both the left and right sides of the speaker grid holes 35, 35··, support steps 34, 34 that protrude forward and have flat front surfaces are provided. When the mounting frame 14 is attached to the inner surface of the front case 2 as described below, the front surfaces of the support steps 34, 34 come into contact with the inner surface of the front case 2, thereby forming a sound alarm space 37 in front of the speaker grid holes 35, 35·· (i.e., in front of the speakers 8 attached to the mounting frame 14). In addition, the upright surface 34A on the sound alarm space 37 side (inner in the left-right direction) of each support step 34 is an inclined surface that slopes outward in the left-right direction as it extends downward, and the sound alarm space 37 is a space whose width gradually widens left-right as it extends downward.

[0014] Additionally, forward-projecting frame waterproof ribs 39 extend vertically along both left and right edge portions of the mounting frame 14 (particularly at the left and right sides of the alarm space 37), and waterproof grooves 40 are provided on the left and right inner sides of each frame waterproof rib 39, recessed relatively rearward compared to the front end of the frame waterproof rib 39. Furthermore, clamping portions 32 are provided above the speaker grille holes 35, 35... on the front surface of the mounting frame 14. These clamping portions 32 contact the elastic support portions 27 of the operating member 11 constituting the calling unit 10 from the rear side when the mounting frame 14 is attached, and clamp the elastic support portions 27 from the front and rear together with the front plate of the front case 2. Furthermore, a rearward-recessed recess is provided above the clamping portions 32 on the front surface of the mounting frame 14, and a switch window 31 is provided within the recess to allow the operating protrusion of the operating member 11 to protrude rearward from the mounting frame 14. The space within the recess serves as a storage space 33 that allows the operating member 11 to be pushed rearward.

[0015] The main board 15 controls the main operations of the intercom handset 1 (for example, operations related to calls with the intercom master unit), and a switch 29 that detects the pressing of the operating member 11 is provided on the front surface of the main board 15. An LED 28, which serves as a component of a power indicator, is provided on the lower front surface of the main board 15 in a position that does not overlap with the sound alarm hole 38 when viewed from the front. Reference numeral 13 denotes a sensor board with a human presence sensor provided on the front surface. The sensor board 13 is provided within the operating member 11 and is electrically connected to the main board 15.

[0016] Meanwhile, the front plate of the front case 2 is provided with an acoustic alarm hole 38, and case waterproof ribs 41, 41 are provided on the rear surface of the front plate of the front case 2, on both the left and right sides of the acoustic alarm hole 38, extending rearward and extending in the vertical direction. When the mounting frame 14 is attached to the inner surface of the front case 2, as shown in FIG. 8, the case waterproof ribs 41, 41 enter the waterproof grooves 40, 40 and abut against the front surface of the mounting frame 14, and the front ends of the frame waterproof ribs 39, 39 are adjacent to the rear surface of the front plate of the front case 2, thereby forming a waterproof structure around the speaker unit 7. Reference numeral 25 denotes an operation window that exposes the operating member 11 to the front of the main case. The decorative cover 4 is attached to the front case 2, and the portion of the decorative cover 4 below the acoustic alarm hole 38 forms an inclined surface 4A that slopes downward toward the front (as shown in FIG. 7).

[0017] The speaker unit 7 as described above is assembled as follows. First, the operation member 11 is arranged on the inner surface of the front case 2 so as to be exposed through the operation window 25. Next, the mounting frame 14, to which the speaker 8 is attached, is arranged so as to cover the rear of the operation member 11. Finally, the main board 15 is screwed to the front case 2 so as to cover the mounting frame 14 from behind. This causes the elastic support portion 27 of the operation member 11 to be sandwiched from the front and rear between the front case 2 and the mounting frame 14, and the operation member 11 is attached so as to be operable by being pushed rearward using the elastic support portion 27 as a fulcrum. Furthermore, the front surfaces of the support steps 34, 34 abut against the inner surface of the front case 2, thereby forming a sound notification space 37 in front of the speaker 8 that communicates with the external space via the sound notification hole 38. Furthermore, the LED 28 is located behind the speaker 8, near the bottom end of the speaker 8. Therefore, the sound emitted from the speaker 8 reverberates sufficiently within the sound notification space 37, and then is emitted to the outside of the main body case through the sound notification hole 38. Furthermore, the light emitted from the LED 28 is reflected by the front panel of the front case 2, and then leaks out of the main body case through the sound notification hole 38. In other words, the sound notification hole 38 serves as an indirect lighting section that illuminates the front of the main body case with indirect light emitted from the LED 28, and functions as a power indicator light.

[0018] Intercom handset 1 having the above-described configuration is provided with mounting frame 14 provided with speaker mounting portion 36 to which speaker 8 is attached and speaker grille holes 35, 35... for reporting sound emitted from speaker 8 attached to speaker mounting portion 36 forward, and mounting frame 14 is attached to the rear surface of the front plate of front case 2 so that sound reporting space 37 is formed in front of speaker grille holes 35, 35... in mounting frame 14 above sound reporting hole 38, and sound reporting space 37 communicates with sound reporting hole 38. Therefore, compared to a structure in which a speaker is attached directly to the inner surface of the main case, a sufficient sound reporting space 37 can be easily secured in front of speaker 8.

[0019] In addition, the mounting frame 14 is provided with support steps 34, 34 that protrude forward, and the mounting frame 14 is attached with the front faces of the support steps 34, 34 abutting against the rear face of the front plate of the front case 2, so that a sufficient sound reporting space 37 can be very easily secured in front of the speaker 8. Furthermore, the mounting frame 14 is provided with a switch window 31, a clamping portion 32, and a storage space 33 for attaching the operating member 11. That is, since the mounting frame 14 is provided with components for attaching not only the speaker 8 but also the operating member 11, it is possible to rationalize the structure, reduce the number of parts, lower costs, etc.

[0020] In addition, the LED 28 is installed on the front surface of the main board 15 at a position that does not overlap with the sound alarm hole 38 when viewed from the front, and the sound alarm hole 38 serves as an indirect lighting section that illuminates the front of the main body case with indirect light emitted from the LED 28. This allows for a streamlined structure and contributes to the miniaturization of the intercom handset 1. In addition, the appearance is innovative, and by using an indirect lighting section that dimly lights up the back side of the sound alarm hole 38 instead of a direct lighting section, it is easy to see even in bright light such as daytime, and is easy to use.

[0021] The intercom device of the present invention is not limited to the above-described embodiment, and the overall configuration of the intercom device as well as the configuration around the speaker unit can be modified as needed without departing from the spirit of the present invention.

[0022] For example, in the above embodiment, the mounting frame is provided with not only a speaker mounting portion but also an operation mounting portion for mounting an operation member, but there is no problem if such an operation mounting portion is not provided. Furthermore, in the above embodiment, a support step provided on the mounting frame is configured to form a sound notification space in front of the speaker, but instead of providing such a support step, it is also possible to form a sound notification space in front of the speaker by providing a boss that protrudes rearward on the front case and screwing the mounting frame to the rear end of the boss, for example.

[0023] Furthermore, in the above embodiment, a speaker grille hole is provided in the mounting frame, and a speaker mounting portion is provided behind the speaker grille hole, but a mounting frame that does not have such a speaker grille hole (and therefore no speaker hole) is also conceivable, and for example, a speaker mounting portion may be provided on the front side of the mounting frame. Furthermore, in the above embodiment, the LED and the sound alarm hole are given the function of a power indicator light, but it is of course possible to give them the function of other lighting parts, such as a night lighting part. In addition, although the above embodiment describes an intercom handset, the present invention can also be suitably adopted for other intercom devices, such as an intercom master unit installed in a living room, as long as it has an alarm hole and a built-in LED. [Explanation of symbols]

[0024] 1 intercom handset (intercom device), 2 front case (main body case), 3 rear case (main body case), 7 speaker section, 11 operating member, 14 mounting frame, 15 main circuit board, 28 LED, 31 switch window, 32 clamping section, 33 storage space, 34 support step section, 35 speaker grille hole, 36 speaker mounting section, 37 sound alarm space, 38 sound alarm hole.

Claims

[Claim 1] An intercom device having a speaker built in a main body case and a sound reporting hole on the front surface of the main body case for reporting the sound emitted by the speaker, An LED is installed in the main body case at a position that does not overlap with the sound alarm hole when viewed from the front, The intercom device is characterized in that the sound alarm hole is an indirect lighting section for illuminating the front of the main body case with indirect light emitted from the LED as a light source.

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