Intercom equipment

Abstract

To provide an intercom device with a simplified structure of a lighting portion.SOLUTION: An LED board 20 with an energization display LED 22 mounted on the rear surface is installed in an operation portion 13, which is translucent and has a box shape that opens toward the rear, a reflecting member 25 including a reflecting portion 27 that reflects light emitted by the energization display LED 22 is assembled so as to cover the energization display LED 22 from the rear. An opening that communicates with a space that covers the energization display LED 22, that is, a space inside the reflecting portion 27, is provided at a portion of the reflecting member 25 that faces the upper surface of the operation portion 13. The upper surface of the operation portion 13 is configured to be a lighting portion using the energization display LED 22 as a light source.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an intercom device such as an intercom slave set that is installed at an entrance, for example, and that is operated by a visitor to make a call. [Background technology]

[0002] Conventionally, for example, in intercom slave units installed at entrances, the call button itself is sometimes provided with a lighting unit to make it easier for visitors to operate the call button at night, etc. For example, the intercom slave unit described in Patent Document 1 has an LED or the like facing forward located behind the call button as a light source, and a cylindrical light guide is provided from the front of the call button toward the light source, making the light emitted by the light source visible from the front side of the main body case. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-34299 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the lighting unit described in Patent Document 1 has a problem in that the structure becomes complicated because it is provided with a cylindrical light guide portion as described above.

[0005] SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and aims to provide an intercom device with a simplified structure of the lighting section. [Means for solving the problem]

[0006] In order to achieve the above object, the invention of claim 1 of the present invention is an intercom device provided with an operating unit that can be operated by pressing it on the front surface of a main body case, the operating unit being formed in a box shape that is translucent and opens to the rear, an LED board with an LED mounted on the rear surface is installed within the operating unit, and a reflective member that reflects light emitted by the LED is attached so as to cover the LED from the rear, and further, an opening that communicates with the space that covers the LED is provided in a location of the reflective member that faces a predetermined peripheral portion of the operating unit, and the peripheral portion of the operating unit serves as a lighting unit that uses the LED as a light source. According to the invention of claim 1, an LED board with an LED mounted on its rear surface is installed inside a box-shaped operation unit that is translucent and opens to the rear, and a reflective member that reflects the light emitted by the LED is attached to cover the LED from behind, and an opening that communicates with the space that covers the LED is provided in a location on the reflective member that faces a predetermined peripheral portion of the operation unit, so that the peripheral portion of the operation unit serves as a lighting unit that uses the LED as a light source. Therefore, there is no need to provide a cylindrical light guide as in the past when configuring the lighting unit, and the structure of the lighting unit can be simplified.

[0007] The invention described in claim 2 is characterized in that, in the invention described in claim 1, an operation window is opened on the front of the main body case to expose the operation unit, a reflective wall capable of reflecting light emitted by the LED protrudes rearward from the opening edge of the operation window, the peripheral surface of the operation unit faces the reflective wall, and the gap between the peripheral surface of the operation unit and the reflective wall serves as an indirect lighting unit using the LED as a light source. According to the invention described in claim 2, an operation window for exposing the operation unit is opened on the front of the main body case, a reflective wall capable of reflecting light emitted by the LED is provided to protrude rearward from the opening edge of the operation window, and the peripheral surface of the operation unit faces the reflective wall, so that the gap between the peripheral surface of the operation unit and the reflective wall serves as an indirect lighting unit using the LED as a light source. Therefore, the lighting unit can be configured by utilizing the gap that previously existed between the operation window and the operation unit, thereby streamlining the structure. [Effects of the Invention]

[0008] According to the present invention, an LED board with an LED mounted on its rear surface is installed inside a light-transmitting, box-shaped operating unit that is open to the rear, and a reflective member that reflects light emitted by the LED is attached to cover the LED from behind, and an opening that communicates with the space that covers the LED is provided in the reflective member at a location facing a predetermined peripheral portion of the operating unit, so that the peripheral portion of the operating unit serves as a lighting unit that uses the LED as a light source. Therefore, when configuring the lighting unit, there is no need to provide a cylindrical light guide as in the past, and the structure of the lighting unit can be simplified. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is an explanatory diagram showing the intercom handset from the front. [Figure 2] FIG. 2 is a perspective explanatory view showing the intercom handset from the front side. [Figure 3] FIG. 2 is a perspective explanatory view showing the rear side of the front case. [Figure 4] FIG. 10 is a perspective explanatory view showing the front case and the call button in an exploded state from the front side. [Figure 5] FIG. 10 is a perspective explanatory view showing the front case and the call button in an exploded state from the rear side. [Figure 6] 1A and 1B are explanatory perspective views showing a reflecting member, in which FIG. 1A shows the reflecting member from the front side and FIG. 1B shows the reflecting member from the rear side. [Figure 7] 1 is an explanatory diagram showing a vertical cross section of a call button portion of an intercom slave unit. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] 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.

[0011] FIG. 1 is an explanatory diagram showing the intercom handset 1 from the front. FIG. 2 is an explanatory perspective view showing the intercom handset 1 from the front side. FIG. 3 is an explanatory perspective view showing the rear side of the front case 2. FIG. 4 is an explanatory perspective view showing the front case 2 and call button 8 in a disassembled state from the front side. FIG. 5 is an explanatory perspective view showing the front case 2 and call button 8 in a disassembled state from the rear side. FIG. 6 is an explanatory perspective view showing the reflective member 25, 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 call button 8 portion of the intercom handset 1.

[0012] Intercom handset 1 has a main body case made up of a front case 2 located on the front side, a rear case 3 located on the rear side, and a decorative cover 4 attached to cover the front of front case 2. A camera unit 5 for capturing images of visitors and the surrounding area, as well as a microphone unit 6 for the visitor to communicate with the resident, are provided at the upper front of the main body case. A speaker unit 7 is also provided below camera unit 5, allowing the visitor to communicate with the resident. A call button 8 is also provided below speaker unit 7, which the visitor presses to call the resident. A motion sensor 21 capable of detecting the visitor is also provided inside call button 8. When a visitor presses call button 8 or when a visitor is detected by motion sensor 21, such as by waving their hand over call button 8, intercom handset 1 calls an intercom master unit (not shown) installed in the dwelling and activates camera unit 5 to capture an image of the visitor.

[0013] Here, the lighting structure of the intercom slave unit 1, which is a main part of the present invention, will be described in detail. The intercom handset 1 is provided with a lighting section that lights up when power is applied to the intercom handset 1 to notify the power status of the intercom handset 1, and also notifies visitors of the installation location of the intercom handset 1 (and further the location of the call button 8 on the intercom handset 1) at night, etc. The lighting section is made up of the call button 8, an LED board 20 on which a power indicator LED 22 is mounted, a reflective member 25, an operation window 9 for installing the call button 8, and the like.

[0014] First, the call button 8 will be described. The call button 8 is a translucent synthetic resin member including a button body 11 having a rectangular box-shaped operation unit 13 with an open rear surface, and an operation cover 12 attached to cover the front surface of the operation unit 13. A pair of plate-shaped arms 14, 14 with a thickness extending in the front-to-rear direction protrude upward from the upper plate of the operation unit 13 of the button body 11. Each arm 14 has a screw fastening portion 15 at its upper end for fastening the arm 14 to the inner surface of the front case 2. A strip-shaped speaker retainer 16 extending in the left-to-right direction is provided to connect the upper ends of the arms 14, 14. Reference numeral 51 denotes a screw for fastening the button body 11, and thus the call button 8, to the inner surface of the front case 2.

[0015] Furthermore, flange-shaped restriction pieces 17 that protrude outward on all four sides are provided around the periphery of the opening on the rear side of the operating unit 13, and when screwed to the inner surface of the front case 2, they come into contact with the inner surface of the front case 2, making it possible to restrict movement of the call button 8 forward from its normal position. Additionally, a sensor opening 19 for exposing the human sensor 21 is formed in the front plate of the operating unit 13, and mounting bosses 18, 18 are provided on the rear surface of the front plate on both the left and right sides of the sensor opening 19 to protrude rearward for screwing in a reflective member 25, which will be described later.

[0016] The LED board 20 has a motion sensor 21 mounted on its front surface and a power-on indicator LED 22 mounted on its rear surface. The LED board 20 is housed in the operation unit 13 in a state where it is sandwiched from the front and rear by a reflective member 25, which is screwed from the rear of the LED board 20 to the mounting bosses 18, 18, and the front plate of the operation unit 13. In this housed state, the front surface of the LED board 20 abuts against the rear surface of the front plate of the operation unit 13, and the motion sensor 21 protrudes into the sensor opening 19.

[0017] Furthermore, the reflective member 25 is a member made of synthetic resin that reflects light without transmitting it, and includes mounting portions 26, 26 for screwing to the mounting bosses 18, 18, and a reflective portion 27 for reflecting light emitted by the power indicator LED 22. The reflective portion 27 has left and right side portions 27a, 27a, a bottom surface portion 27b connecting the bottom ends of the left and right side portions 27a, and a back surface portion 27c spanning the rear ends of the left and right side portions 27a, and is molded like a cover that is open on the front and top surfaces. When the reflecting member 25 is screwed to the operation unit 13, the front ends of the left and right side portions 27a, 27a and the front end of the bottom portion 27b abut the rear surface of the LED board 20, and the upper ends of the left and right side portions 27a, 27a abut the upper plate of the operation unit 13 (the upper surface opening 27d of the reflecting portion 27 faces the upper surface of the operation unit 13), and the reflecting portion 27 covers the power-on indicator LED 22. In other words, the power-on indicator LED 22 is located within the reflecting portion 27, and the space within the reflecting portion 27 communicates with the outside of the reflecting portion 27 via the upper surface opening 27d of the reflecting portion 27. Reference numeral 52 denotes a screw for screwing the reflecting member 25 into the operation unit 13.

[0018] Meanwhile, an operation window 9 is provided in the front case 2 to expose the operation unit 13 of the call button 8. The opening area of ​​the operation window 9 is formed to be larger than the area of ​​the front surface of the operation unit 13 (especially the width in the vertical direction) to enable the call button 8 to be pressed (i.e., the arms 14, 14 bend with the screw fastening portions 15, 15 as fulcrums, and the operation unit 13 moves toward the inside of the main body case), and with the installation of the call button 8, a gap 30 is created between the upper edge of the operation window 9 and the upper surface of the operation unit 13. In addition, a reflecting wall 9a that protrudes rearward is provided along the upper edge of the operation window 9, and with the installation of the call button 8, the upper surface of the operation unit 13 and the reflecting wall 9a face each other.

[0019] In the lighting structure described above, when power indicator LED 22 lights up as power is applied to intercom handset 1, the light emitted from power indicator LED 22 reflects off of reflector 27 and reaches the top surface of operating unit 13, and after repeatedly reflecting off the top surface of operating unit 13 and reflecting wall 9a, leaks out of the main body case through gap 30. In other words, gap 30 functions as an indirect lighting section that uses indirect light emitted from power indicator LED 22 as a light source to indicate the power-on state of intercom handset 1 and to indicate the installation location of intercom handset 1 at night, etc.

[0020] In the intercom handset 1 having the above-described configuration, an LED board 20 having a power-on indicator LED 22 mounted on its rear surface is installed within the operation unit 13, which is translucent and formed in a box shape that opens to the rear, and a reflective member 25 having a reflective portion 27 that reflects light emitted by the power-on indicator LED 22 is attached to cover the power-on indicator LED 22 from behind. Furthermore, an opening is provided in the reflective member 25 at a location facing the top surface of the operation unit 13, which communicates with the space that covers the power-on indicator LED 22, i.e., the space within the reflective portion 27, so that the top surface of the operation unit 13 serves as a lighting unit that uses the power-on indicator LED 22 as a light source. Therefore, there is no need to provide a cylindrical light guide as in the past when configuring the lighting unit, which simplifies the structure of the lighting unit.

[0021] Furthermore, an operation window 9 is opened in the front case 2 to expose the operation unit 13, and a reflective wall 9a capable of reflecting light emitted by the power indicator LED 22 protrudes rearward from the upper edge of the operation window 9, the upper surface of the operation unit 13 faces the reflective wall 9a, and a gap 30 between the upper surface of the operation unit 13 and the reflective wall 9a serves as an indirect lighting unit using the power indicator LED 22 as a light source. Therefore, the lighting unit can be configured using the gap 30 between the operation unit 13 and the operation window 9, which previously existed. This allows for a streamlined structure.

[0022] 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 of the operating unit and lighting units such as LED boards can be modified as needed without departing from the spirit of the present invention.

[0023] For example, in the above embodiment, the top surface of the operating unit is located inside the main body case, but the present invention can also be suitably employed in an intercom device in which the top surface of the operating unit protrudes forward beyond the front surface of the main body case, in which case the gap does not serve as an illumination unit as in the above embodiment. In addition, in the above embodiment, the operating unit is formed in a rectangular box shape that opens on the rear side, but it can also be formed in a box shape that is circular when viewed from the front and opens on the rear side, and the design of which peripheral portion of the operating unit is used as the lighting portion can be changed as appropriate. That is, for example, the lower surface of a rectangular box-shaped operating unit can be used as the lighting portion, or the upper left corner of the peripheral portion of a circular box-shaped operating unit when viewed from the front can be used as the lighting portion.

[0024] Furthermore, in the above embodiment, a power indicator LED is mounted on the rear surface of the LED board, but the design can be changed as needed to determine what function the LED mounted on the rear surface of the LED board serves, and for example, it is also possible to mount an illumination LED on the rear surface of the LED board, or an error notification LED on the rear surface of the LED board.It is also possible to mount a second LED on the front surface of the LED board, and use the front surface of the operation unit as a second lighting unit. In addition, in the above embodiment, an intercom handset is described as an example of an intercom device, but there is no problem with other intercom devices such as a collective entrance unit or an intercom master unit as long as they have an operating section that can be operated by pressing it on the front of the main body case. [Explanation of symbols]

[0025] 1··Intercom handset (intercom device), 2··Front case (main body case), 3··Rear case (main body case), 4··Decorative cover (main body case), 8··Call button, 9··Operation window, 9a··Reflective wall, 11··Button body, 13··Operation part, 14··Arm part, 19··Lighting opening, 20··LED board, 22··Power indicator LED (LED), 25··Reflective member, 27··Reflective part, 27d··Opening, 30··Gap.

Claims

1. An intercom device having an operation unit that can be operated by pressing it on the front surface of a main body case, the operation unit is translucent and formed in a box shape that opens rearward, an LED board having an LED mounted on a rear surface thereof is installed within the operation unit, and a reflective member that reflects light emitted from the LED is assembled so as to cover the LED from behind; Furthermore, an opening communicating with a space covering the LED is provided at a location of the reflecting member facing a predetermined peripheral portion of the operation unit, The intercom device is characterized in that the peripheral surface portion of the operating portion serves as a lighting portion using the LED as a light source.

2. An operation window for exposing the operation unit is opened on the front surface of the main body case, and a reflective wall capable of reflecting light emitted by the LED is provided to protrude rearward from an opening edge of the operation window; the peripheral surface of the operation portion faces the reflecting wall, 2. The intercom device according to claim 1, wherein a gap between the peripheral surface of the operation unit and the reflecting wall serves as an indirect lighting unit using the LED as a light source.

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