JP2019087898A - Light blocking member, intercom device, and intercom system - Google Patents

Abstract

To provide a light blocking member capable of preventing degradation of reliability on imaging of subjects.SOLUTION: A light blocking member 7 is configured to be changeable in shading range for shading at least part of area of a lens 301 in an intercom device 1. The intercom device 1 includes a housing A1 and an imaging unit 30 having the lens 301 which is disposed so as to be exposed from the housing A1.SELECTED DRAWING: Figure 10

Description

  The present invention generally relates to a light blocking member, an intercom device, and an intercom system, and more particularly, to a light blocking member used for an intercom device, the intercom device, and an intercom system including the intercom device.

  As a conventional example, a front door slave unit of the intercom apparatus described in Patent Document 1 will be exemplified. This front door slave unit incorporates a camera in a main case formed by assembling a front case and a rear case, and also includes a speaker unit, a call button, a microphone unit, and the like. The front door slave unit is configured to be able to communicate with the parent unit installed in the living room. Further, at the time of a call, it is possible to image a visitor or the like with a camera and transmit the imaging data to the parent device.

JP 2008-205934 A

  By the way, the entrance child machine described in Patent Literature 1 may be applied to, for example, an apartment complex such as an apartment. In addition, for example, a lighting fixture may be installed on the ceiling of the shared corridor of the collective housing.

  When the camera of the front door slave unit images a visitor, for example, when the lighting device (light source) is located above or near the visitor's head, the lens inner surface of the camera due to the light emitted from the lighting device So-called lens flare may occur as a result of re-reflection. That is, a plurality of granular images by light from the lighting apparatus overlap and appear with the image of the subject (visitor) (especially, the face peripheral portion), and the resident's face using the master machine sees the visitor's face There was a possibility that it became difficult to see.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a light shielding member, an interphone device, and an interphone system capable of suppressing a reduction in reliability regarding imaging of an object.

  A light blocking member according to an aspect of the present invention includes an enclosure and an imaging unit having a lens disposed to be exposed from the enclosure, with respect to at least a partial region of the lens in the intercom device, It is configured to be able to change the light shielding range to be shielded.

  An intercom device according to an aspect of the present invention includes the light shielding member described above, the container, and the imaging unit.

  An intercom device according to an aspect of the present invention includes a housing and an imaging unit having a lens arranged to be exposed from the housing. The container body has a fixed portion to which a light shielding member capable of changing a light shielding range for shielding light to at least a partial area of the lens is detachably fixed.

  An interphone system according to an aspect of the present invention includes any one of the above-described interphone devices and a communication device capable of communicating with the interphone device.

  The present invention is advantageous in that it is possible to suppress the decrease in the reliability regarding the imaging of the subject.

FIG. 1 is a perspective view of an intercom device and a switch box according to an embodiment, showing a state in which a decorative panel of the intercom device is removed. FIG. 2A is a front view of the interphone device of the same, and FIG. 2B is a bottom view of the interphone device of the same. FIG. 3 is a schematic configuration diagram of an intercom system according to an embodiment. FIG. 4 is an exploded perspective view of the interphone device of the same as above. FIG. 5 is an exploded perspective view of the interphone device of the same as viewed from below. FIG. 6 is a rear view of the interphone device of the same. FIG. 7 is a front view of the intercom device of the same as the above, in which the illustration of the decorative panel and the cover is omitted. FIG. 8 is a cross-sectional view taken along line X-X of FIG. FIG. 9 is a cross-sectional view taken along line Y-Y of FIG. FIG. 10 is a perspective view of an essential part including a light shielding member in the intercom device of the same. FIG. 11 is a view for explaining lens flare in the case where the above-mentioned light shielding member is not provided. FIG. 12A and FIG. 12B are principal part perspective views of an intercom apparatus provided with the modification 1 of the light-shielding member same as the above. 13A and 13B are plan views of a second modification of the light shielding member of the same. 14A and 14B are plan views of another modification 2 of the light shielding member of the same. FIGS. 15A and 15B are perspective views of an essential portion of an intercom apparatus provided with a third modification of the light shielding member of the above. FIG. 16 is a perspective view of an essential part of an intercom apparatus provided with a fourth modification of the light shielding member of the above.

(1) Overview The following embodiment is only one of various embodiments of the present invention. The following embodiments can be variously modified according to the design and the like as long as the object of the present invention can be achieved. Moreover, FIGS. 1 to 16 described in the following embodiments are schematic views, and the ratio of the size and thickness of each component in FIGS. 1 to 16 necessarily reflects the actual dimensional ratio. Not necessarily.

  In the following, the vertical and horizontal directions of the intercom device 1 of the present embodiment will be defined using the vertical and horizontal arrows shown in FIGS. 1, 4 and 5. These arrows are described merely for the purpose of assisting the explanation, and do not have an entity. Moreover, these directions are not the meaning which limits the use direction of the intercom apparatus 1. FIG.

  The light shielding member 7 of the present embodiment is applied to the intercom device 1. As shown in FIG. 10, the intercom device 1 includes a body A1 and an imaging unit 30 (see FIG. 3) having a lens 301 arranged to be exposed from the body A1. Container A1 of this embodiment is comprised from the housing | casing 2 and the makeup panel 5 as an example.

  The light blocking member 7 is configured to be capable of changing the light blocking range for light blocking with respect to at least a partial region of the lens 301 in the intercom device 1. Here, “the light blocking range can be changed” refers to the case where the light blocking range changes due to the attachment and removal of the light blocking member 7 to the intercom device 1 and the light blocking member 7 is movable with respect to the intercom device 1. Includes both cases where the light blocking range changes.

  According to this configuration, for example, even when the lighting fixture 502 (see FIG. 11) is installed in the vicinity of the intercom device 1, the lens flare caused by the light emitted from the lighting fixture 502 by the light shielding member 7 Can be suppressed. Therefore, it is possible to suppress the decrease in the reliability of the imaging of the subject (visitor M1 or the like).

  The intercom device 1 of the present embodiment includes, as an example, the light shielding member 7 as a component. However, the light shielding member 7 is not an essential component, and the intercom device 1 may not include the light shielding member 7 and may only include the fixed portion 70B to which the light shielding member 7 is fixed.

  As shown in FIG. 1, the housing 2 of the container A1 has a pair of first through holes 21 for fixing the housing 2 to the switch box 200A. In this embodiment, as an example, the switch box 200A satisfies the standard for one switch box in JIS C 8435, and as shown in FIG. It is assumed. In addition, the housing 2 has four second through holes 22 and four third through holes 23 for fixing to two and three switch boxes embedded in the wall surface 500. There is. However, the fixing target of the housing 2 is not limited to the switch box, and may be fixed to a construction material (for example, a wall material). For example, the housing 2 may be directly fixed to the wall surface by wood screws or the like.

(2) Details (2.1) Overall Configuration Hereinafter, the overall configuration of the intercom system 1 including the interphone device 1 including the light shielding member 7 of the present embodiment and the interphone device 1 will be described. In the present embodiment, as an example, it is assumed that interphone system 100 is an intercom system for collective housing applied to collective housing such as a condominium. Moreover, in this embodiment, it is assumed that the light source which causes a lens flare is the lighting fixture 502 installed in the ceiling 501 (refer FIG. 11) of the common corridor in collective housing as an example. However, it is not particularly limited. The application target of the interphone system 100 may be, for example, a detached house, or may be a non-residential house such as a factory, a hospital, or an office building. When the application target of the intercom system 100 is, for example, a detached house, the light source causing the lens flare may be a street light installed near the detached house.

  As shown in FIG. 3, the interphone system 100 includes an interphone device 1 and a talk device 10 capable of communicating with the interphone device 1 via the transmission path S1.

  Here, it is assumed that the intercom device 1 is, as an example, an intercom slave (door phone slave) installed at an outer entrance of each dwelling unit of the collective housing. In addition, it is assumed that, as an example, the communication device 10 is an intercom master installed in a room of a corresponding dwelling unit. Intercom system 100 may further include a lobby interphone (not shown) which is a shared terminal installed in the lobby of the housing complex. For example, the lobby intercom can talk with the communication device 10 which is an intercom master of each dwelling unit through a trunk line. In addition, the structure of the light shielding member 7 of the intercom apparatus 1 and the body A1 may be applied to the communication apparatus 10 which is an intercom master, or may be applied to a lobby intercom. When the structure of the light blocking member 7 and the housing A1 of the intercom device 1 is applied to a lobby intercom, the light source causing the lens flare may be a lighting fixture installed on the ceiling of the lobby.

(2.2) Intercom apparatus Hereinafter, the intercom apparatus 1 will be described. The intercom apparatus 1 is provided with the container A1 comprised from the housing | casing 2 and the makeup panel 5, and the light-shielding member 7 as it demonstrated by the column of the above (1) outline | summary. Further, the intercom device 1 includes a call unit 3 (see FIG. 3) and a rectangular plate-like substrate 4. Further, the intercom device 1 includes a terminal block 6 and a functional unit 91. The housing 2, the decorative panel 5, the substrate 4, and the light shielding member 7 will not be described in this section, and will be described in detail in a later section.

  The call unit 3 includes an imaging unit 30, a communication unit 31, a control unit 32, and an operation unit 33, as shown in FIG. Furthermore, the call unit 3 further includes a microphone unit 8 and a speaker 90 (see FIG. 7) for realizing a call with the call device 10.

  As shown in FIG. 3, the imaging unit 30 includes an imaging element 300, a lens 301, and a pedestal 303 (see FIG. 4). The imaging unit 30 is a camera for imaging a subject such as a person. Therefore, the imaging area (field of view) of the imaging unit 30 is set in front of the intercom device 1 so that at least a human face is captured in the image when the person operates the intercom device 1. The lens 301 is arranged such that its front surface is exposed from the body A1. The pedestal 303 is screwed to the back of the cover 2 A of the housing 2 so as to support the lens 301.

  In the present embodiment, the imaging unit 30 is assumed to be a camera for capturing a moving image, but the imaging unit 30 may be a camera (still camera) for capturing a still image. Further, in the present embodiment, the imaging unit 30 is assumed to be a color camera for capturing a color image, but the imaging unit 30 may be a monochrome camera for capturing a monochrome image. The imaging device 300 is, for example, a two-dimensional image sensor such as a charge coupled devices (CCD) image sensor or a complementary metal-oxide semiconductor (CMOS) image sensor. The imaging unit 30 causes light from an object to be focused on an imaging surface (light receiving surface) of the imaging device 300 by the lens 301, and the imaging device 300 converts light from the object into an electrical signal (image signal). Therefore, the image captured by the imaging unit 30 is transmitted from the imaging unit 30 to the communication device 10 as an image signal.

  A control board or the like on which the imaging element 300 of the imaging unit 30 is mounted (disposed on the back side of the pedestal 303) is mounted on the board 4. Specifically, the control substrate or the like is disposed at the center in the left-right direction in the first region 451 (see FIG. 7) located at the top of one surface (the front surface 45) of the substrate 4. In the following description, as shown in FIG. 7, the front surface 45 of the substrate 4 is divided into three areas in the vertical direction, and the first area 451, the second area 452, and the third area 453 are arranged in order from the top. It prescribes. The dimension of the first region 451 in the vertical direction is substantially the same as the dimension of the third region 453 in the vertical direction. The dimension in the vertical direction of the second region 452 at the center in the vertical direction is about four times the dimension in the vertical direction of the first region 451.

  The communication unit 31 is a communication interface for communicating with the telephone set 10. The communication unit 31 is electrically connected to the telephone set 10 via, for example, a two-wire transmission path S1 (shown by one line in FIG. 3) formed of a twisted pair or the like. The communication unit 31 transmits an image signal of an image captured by the imaging unit 30 to the communication device 10. Furthermore, the communication unit 31 is configured to be able to bidirectionally communicate with the speech apparatus 10 so that voice signals and control signals can be bidirectionally transmitted between the intercom apparatus 1 and the speech apparatus 10 .

  The communication unit 31 converts (demodulates) the digital voice signal received from the communication device 10 into an analog voice signal. The demodulated audio signal is output from the speaker 90. Further, the voice collected by the microphone unit 8 is input from the microphone unit 8 to the communication unit 31 as an analog voice signal, converted into a digital voice signal, and transmitted to the communication device 10.

  The speaker 90 and the microphone of the microphone unit 8 are mounted on the substrate 4. Specifically, the speaker 90 is disposed substantially at the center in the vertical direction and the lateral direction in the second region 452. The microphone of the microphone unit 8 is disposed at the right end of the first region 451 of the substrate 4, that is, on the right of the pedestal 303 of the imaging unit 30. The microphone 80 of the microphone unit 8 is a surface mount microphone.

  The operation unit 33 includes a push button switch and an operation member 330 (see FIG. 4) disposed in front of the push button switch, and receives an operation for calling from a visitor. When a predetermined operation (for example, a pressing operation) is performed on the operation member 330, the push button switch is pressed, and the intercom device 1 communicates a control signal (calling signal) for calling a resident in the dwelling unit It transmits from the unit 31 to the communication device 10.

  The push button switch and the like of the operation unit 33 are mounted on the substrate 4. Specifically, the push button switch or the like of the operation unit 33 is disposed in the third area 453 of the substrate 4. The operation member 330 is arranged to face the third region 453 of the substrate 4 and is held between the cover 2A of the housing 2 and the substrate 4 so as to be displaceable rearward in response to a pressing operation from a visitor. ing.

  The control unit 32 is configured to control the imaging unit 30, the communication unit 31, the operation unit 33, and the like. The control unit 32 is configured of, for example, a microcomputer whose main configuration is a CPU (Central Processing Unit) and a memory. Then, the CPU functions as the control unit 32 by executing a program stored in the memory. Here, the program executed by the CPU is pre-recorded in the memory of the microcomputer here, but may be provided by being recorded in a recording medium such as a memory card or may be provided through a telecommunication line such as the Internet .

  Circuit components constituting the communication unit 31 and the control unit 32 are mounted on the substrate 4. Specifically, the circuit components constituting the communication unit 31 and the control unit 32 are disposed substantially in the first area 451 and the second area 452 of the substrate 4. In particular, relatively large circuit components such as an electrolytic capacitor and a communication transformer are disposed in the second area 452, and the microcomputer and the like described above are disposed in the vicinity of the imaging unit 30 in the first area 451. Although the detailed description is omitted, in addition to this, the call unit 3 has a non-volatile memory capable of rewriting data, which records an image captured by the imaging unit 30 and records various setting parameters. It may be

  The terminal block 6 has a plurality of terminals, and is connected with a plurality of connection lines L1 (see FIG. 1) extending from the top in the switch box 200A which is a switch box. The connection line L1 is connected to the terminal block 6 to form the transmission path S1, and the intercom device 1 is electrically connected to the communication device 10 in the dwelling unit. Further, by connecting the connection line L1 to the terminal block 6, the intercom device 1 is electrically connected to a sensor or the like (for example, a heat sensor) in the dwelling unit.

  The terminal block 6 is mounted on the substrate 4. Specifically, the terminal block 6 is mounted on the back surface 46 of the substrate 4 as shown in FIG. The terminal block 6 is in the form of a long rectangular parallelepiped, and the longitudinal direction of the terminal block 6 is arranged along the vertical direction. The terminal block 6 is positioned to the left of the speaker 90 in the projection area of the second area 452 when viewed from the front.

  As shown in FIGS. 2A and 4, the functional unit 91 has a connector 910 and a door 911 and the like disposed in front of the connector 910 so as to be openable and closable. Further, as shown in FIGS. 4 and 7, the functional unit 91 has a cap 913 made of, for example, a rubber that covers the front surface of the connector 910 when the connector 910 is not in use. For example, a plug of an external tester for testing a sensor with a remote test function in the dwelling unit is inserted into the connector 910 from outside the dwelling unit.

  The connector 910 of the functional unit 91 is mounted on the substrate 4. Specifically, the connector 910 is disposed at the left end of the first region 451 of the substrate 4, that is, on the left of the pedestal 303 of the imaging unit 30. The door 911 is held by the cover 2 A of the housing 2 so as to face the connector 910.

  In the present embodiment, for example, a plurality of components of the imaging unit 30, the speaker 90, the microphone of the microphone unit 8, the push button switch of the operation unit 33, and the circuit components of the communication unit 31 and the control unit 32 constitute the call unit 3. Corresponds to the circuit component 40 of FIG. Then, all of these circuit components 40 that constitute the call unit 3 are mounted on one board 4. Therefore, compared with the case where a plurality of circuit components 40 are dispersed, for example, on the main substrate and the sub substrate, the number of mounting substrates can be reduced, and the number of components can be reduced.

  However, it is not essential in the intercom device 1 that all of these circuit components 40 constituting the call unit 3 are mounted on one substrate 4. For example, sub substrates may be provided in addition to the substrate 4 and these circuit components 40 may be dispersedly mounted on the substrate 4 and the two sub substrates. In addition, a plurality of sub substrates may be provided. However, it is desirable that at least the circuit components constituting the communication unit 31 and the control unit 32 be mounted on one board 4.

  Among the circuit components 40, the switch 40A (see FIG. 7A) mounted on the upper left of the second area 452 is a display that is imaged by the imaging unit 30 and displayed on the display of the communication device 10 (interphone master unit) It is a switch for adjusting the range at the intercom device 1 side. The switch 40A is exposed to the outside of the cover 2A from an exposed portion 40B (see FIG. 4) provided on the cover 2A of the housing 2. The switch 40A can be switched to the left position, the center position, and the right position along the left-right direction. The displayable range on the display of the communication device 10 is switched to the left, center, and right according to the switching position of the switch 40A.

(2.3) Substrate The substrate 4 is, for example, a rectangular printed wiring board which is long in the vertical direction. A circuit pattern (conductor pattern) is formed on the surface of the substrate 4. As described above, on the substrate 4, the plurality of circuit components 40 constituting the call unit 3, the terminal block 6, and the function unit 91 are mounted. The substrate 4 is held in the housing 2.

  The board | substrate 4 of this embodiment has a pair of through-hole 41 penetrated in the thickness direction, as shown in FIG. Each through hole 41 overlaps at least a part of the opening area of the corresponding first through hole 21 of the housing 2 when viewed in the thickness direction. In other words, each through hole 41 is formed so as to overlap with a part or all of the opening area of the first through hole 21 in the opening area when viewed in the front-rear direction. In the present embodiment, the opening area of each through hole 41 is larger than the opening area of the corresponding first through hole 21, and overlaps with the entire opening area of the first through hole 21. Specifically, the opening area of each through hole 41 is formed such that the cylindrical body projecting along the periphery of the corresponding first through hole 21 in the cover 2A of the housing 2 is accommodated in the through hole 41. (See FIG. 8: in the example of FIG. 8 a cylindrical body 217).

  Each of the pair of through holes 41 is disposed substantially in the second region 452 of the substrate 4 as shown in FIG. Specifically, the upper through hole 41 is disposed at the center in the left-right direction at the upper part in the second region 452 (partly extends into the first region 451). Hereinafter, the upper through hole 41 may be referred to as "through hole 41A" (see FIG. 5). The through hole 41A is generally a racetrack shaped long hole whose opening shape is long in the vertical direction, and a part (upper part) thereof is opened in a rectangular shape (see FIG. 5). The lower through hole 41 is disposed at the center in the left-right direction at the lower portion in the second region 452. Hereinafter, the lower through hole 41 may be referred to as a "through hole 41B" (see FIG. 5). The through hole 41B is a racetrack shaped long hole whose opening shape is long in the left-right direction.

  The pair of through holes 41 is provided in the second region 452 so that the speakers 90 are located therebetween in the vertical direction. Further, the pair of through holes 41 is provided in the second area 452 so that the projection area of the terminal block 6 is located therebetween in the vertical direction. The circuit pattern provided on the surface of the substrate 4 is formed so as to avoid the pair of through holes 41.

  In addition, as shown in FIG. 7, the substrate 4 is to receive eight cylindrical bodies (256, 257) in the shape of a racetrack in the base 2B of the housing 2 in one-to-one relation at the left and right edges thereof. It has eight recesses. The eight recesses have four recesses 42 corresponding to four cylinders 256 and four recesses 43 corresponding to four cylinders 257.

  The four recesses 42 are disposed two each at the left and right edges of the second region 452 of the substrate 4. The four recesses 42 are located near the center of the substrate 4 in the vertical direction. Each recess 42 is recessed in the inside of the substrate 4 in a substantially J shape along the shape of the edge of the racetrack-shaped cylindrical body 256 when viewed from the front-rear direction. The upper two recesses 42 are formed such that their arc-shaped portions face upward, and the lower two recesses 42 are formed such that their arc-shaped portions face downward. That is, the four recesses 42 are symmetrical with respect to the central axis of the second region 452 in the lateral direction, and are also symmetrical with respect to the central axis of the second region 452 in the vertical direction. It is formed.

  On the other hand, the four recesses 43 are both left and right edges of the boundary between the first region 451 and the second region 452 of the substrate 4 and both edges of the boundary between the second region 452 and the third region 453 of the substrate 4. , Are arranged respectively. Specifically, at each of the left and right edges of substrate 4, two recesses 42 are located between two recesses 43, and the center of substrate 4 in the vertical direction is located between two recesses 42. . Each recess 43 is recessed in the inside of the substrate 4 in a substantially J shape along the shape of the edge of the racetrack-shaped cylindrical body 257 when viewed from the front-rear direction. The upper two recesses 43 are formed such that their arc-shaped portions face upward, and the lower two recesses 43 are formed such that their arc-shaped portions face downward. That is, the four recesses 43 are symmetrical with respect to the central axis of the second region 452 in the lateral direction, and are also symmetrical with respect to the central axis of the second region 452 in the vertical direction. It is formed.

  Furthermore, as shown in FIG. 7, the substrate 4 has a pair of receiving portions 44 recessed in a semicircular shape toward the inside of the substrate 4 at positions near the left and right ends of each of the upper and lower edges (see FIG. 7). 4 in total).

(2.4) Casing (2.4.1) Overall Configuration of Casing As shown in FIG. 1, the casing 2 has a rectangular box shape elongated in the vertical direction as a whole and flat. The housing 2 is made of, for example, a material such as a synthetic resin. And as shown in FIG.4 and FIG.5, the housing | casing 2 is comprised from the rectangular box-shaped cover 2A which open | released the rear surface, and the rectangular-plate-shaped base 2B covered with the cover 2A.

  Here, the container A1 (see FIG. 10) including the housing 2 and the decorative panel 5 has a fixed portion 70B for detachably fixing the wedge-shaped light shielding member 7 thereto. The fixed portion 70B is provided on the cover 2A of the housing 2 as an example.

(2.4.2) Cover As shown in FIG. 1, the cover 2 </ b> A includes a rectangular plate-shaped main body 200, an upper side wall 201 protruding rearward from an upper edge of the main body 200, and a lower edge of the main body 200. And a lower side wall 202 protruding rearward. Furthermore, as shown in FIG. 1, the cover 2A has a right side wall 203 protruding backward from the right edge of the main body 200 and a left side wall 204 protruding backward from the left edge of the main body 200.

  The main body portion 200 has a first protrusion 210 projecting forward at the top of its front surface. The first protrusion 210 has a rectangular shape when viewed in the front-rear direction. The first protrusion 210 is formed such that its longitudinal direction is along the left-right direction. The first protrusion 210 is in a position substantially overlapping the projection area of the first area 451 of the substrate 4 when viewed in the front-rear direction. The first protrusion 210 has a second protrusion 211 protruding forward from the flat front surface of the first protrusion 210 at the center in the left-right direction.

  The second projecting stand 211 is at a position overlapping the projection area of the imaging unit 30 mounted on the first area 451 of the substrate 4 when viewed from the front-rear direction. And the 2nd protrusion stand 211 has the window hole 212 (refer FIG. 2A) penetrated in the thickness direction of the main-body part 200. As shown in FIG. The window hole 212 is a hole for exposing the lens 301 disposed on the back side of the main body 200 to the outside of the housing 2, and the opening is circular. The front surface of the second projecting stand 211 is a rectangular shape when viewed from the front and rear direction, and is a curved surface curved in an arc shape so as to be convex in the direction away from the substrate 4 when viewed from the up and down direction ing.

  The first protrusion 210 has a slit 213 elongated in the vertical direction in a region immediately to the right of the second protrusion 211 on the front surface thereof. The slit 213 is disposed to face the microphone of the microphone unit 8 mounted in the first area 451 of the substrate 4. The slit 213 has a structure having an inclined surface that gently inclines from the lower edge toward the substrate 4 at its inner peripheral edge. Then, only the central part in the vertical direction of the slit 213 penetrates in the thickness direction of the main body 200, and the sound emitted from the visitor is collected by the microphone 8 through the slit 213.

  The first protrusion 210 has a door receiving recess 214 (see FIG. 4) in which the door 911 of the functional unit 91 is received in a region on the front side adjacent to the left of the second protrusion 211. The opening shape of the door accommodating recess 214 is rectangular, and is recessed toward the substrate 4. The door accommodation recess 214 has a hole 214A penetrating in the thickness direction of the main body 200 at its inner bottom, and the connector 910 on the substrate 4 is exposed through the hole 214A. At the lower end of the door 911 is formed a notch 912 that can be hooked with a person's claw or the like. The door accommodation recess 214 pivotally supports the door 911 such that the door 911 can be rotated about the rotation axis (along the left-right direction) to a position where the door 911 exposes the connector 910 to the outside. Therefore, by hooking a person's claw or the like in the notch 912 and pulling the door 911 to the front, the door 911 is rotated and the connector 910 is exposed to the outside.

  In the present embodiment, the cover 2A has a housing recess 700 (see FIG. 4) and a pair of insertion holes 701 (see FIG. 10) corresponding to the fixed portion 70B to which the light shielding member 7 is detachably fixed. ing. The housing recess 700 is configured such that the rear end portion 705 (see FIG. 5, the fixing portion 70A) of the light shielding member 7 is inserted and stored from the front. Specifically, the accommodation recess 700 is recessed to be retracted from the front surface of the cover 2A, and has a rectangular opening that is elongated in the left-right direction when viewed from the front of the front surface of the cover 2A. The housing recess 700 is disposed on the front surface of the cover 2A above the first projection 210. The light blocking member 7 contacts the upper end surface 703 of the first protrusion 210 in a state where the rear end 705 is accommodated in the accommodation recess 700.

  The pair of insertion holes 701 is provided on the inner bottom surface of the housing recess 700 as shown in FIG. Each insertion hole 701 of this embodiment is a hole which penetrates cover 2A in the front-back direction as an example, but it may be a dent which is not penetrated. A pair of cylindrical projections 706 (see FIG. 5, the fixing portion 70A) protruding from the rear end portion 705 of the light shielding member 7 are inserted into the pair of insertion holes 701 one by one. The outer diameter of the projection 706 and the inner diameter of the insertion hole 701 are defined to be substantially equal to each other to the extent that the light shielding member 7 does not easily fall off from the housing recess 700 when the projection 706 is inserted into the insertion hole 701. Is desirable.

  As shown in FIG. 4, the main body portion 200 has an exposure hole 215 exposing the operation member 330 disposed in front of the button switch of the operation portion 33 at the lower portion of the front surface. The exposure hole 215 is a hole penetrating in the thickness direction of the main body portion 200, and the opening shape is a rectangular shape. A groove 242 (see FIG. 5) for receiving a flange 331 protruding from the outer peripheral edge of the operation member 330 is formed in the peripheral edge portion of the exposure hole 215 on the back surface of the main body portion 200. Further, at upper ends of both left and right edges of the exposure hole 215, a pair of shaft portions 243 (see FIG. 5) protruding in a direction approaching each other are provided. On the other hand, a semicircular notched bearing is formed on the back side of the operation member 330, and the flange 331 is accommodated in the groove 242 in a state in which the shaft portion 243 is hooked on the bearing. Therefore, the operation member 330 is displaceable between the back surface of the main body 200 and the substrate 4 so as to be pushed backward by a pressing operation of a person such as a visitor with the shaft portion 243 as a central axis. It is supported by

  As shown in FIG. 1, the main body portion 200 has a sound passage opening 216 at a position slightly to the right of the center in the left and right and up and down directions on the front surface. The sound passage opening 216 is disposed to face the speaker 90 mounted in the second area 452 of the substrate 4 and passes the sound from the speaker 90 to the outside. The sound passing opening 216 is composed of a plurality of holes penetrating in the thickness direction of the main body 200, and these holes are formed along three concentric circles having large, medium and small diameters. It has an arc-shaped opening formed.

  The housing 2 of the present embodiment has two first through holes 21 as described above (see FIG. 1). The two first through holes 21 are arranged in the vertical direction, and in the following, the upper first through hole 21 is referred to as "first through hole 21A", and the lower first through hole 21 is referred to as "first through hole 21A". It may be called "1 through hole 21B". Each first through hole 21 is configured by combining a cover hole 2100 of the cover 2A (see FIG. 8) and a base hole 2101 of the base 2B (see FIGS. 7 and 8) facing the cover hole 2100. . Hereinafter, the cover hole 2100 will be described first.

  The main body portion 200 has a pair of cover holes 2100. That is, of the pair of cover holes 2100, the upper cover hole 2100 corresponds to a part of the first through hole 21A, and the lower cover hole 2100 corresponds to a part of the first through hole 21B. The pair of cover holes 2100 are disposed in the projection area of the second area 452 of the substrate 4 when viewed in the front-rear direction. In particular, each cover hole 2100 is arranged in the projection area of the corresponding through hole 41 of the substrate 4.

  Here, the main body portion 200 has cylindrical bodies 217 and 218 (see FIG. 5) that project rearward on the back surface so as to reinforce the peripheral edge of the upper and lower cover holes 2100, respectively. The upper and lower cover holes 2100 are formed to penetrate the cylindrical bodies 217 and 218, respectively, and both ends in the front-rear direction of each of the cylindrical bodies 217 and 218 are open. Further, the main body portion 200 has a pair of recesses 219 (see FIG. 1) recessed in a racetrack shape toward the rear on its front surface, and the cover hole 2100 described above is formed on the bottom surface of each recess 219 It is done.

  Specifically, the upper concave portion 219 is disposed such that the major axis thereof extends in the vertical direction, and a cover hole 2100 penetrating in a dharma shape is formed on the bottom surface of the upper concave portion 219. The cover hole 2100 of the dharma shape is arranged such that the large diameter portion and the small diameter portion thereof are aligned in the vertical direction. The opening area of the darma-shaped cover hole 2100 is smaller than the opening area of the corresponding recess 219. The cylindrical body 217 (see FIG. 5) has a racetrack-shaped cylindrical body protruding from the back surface of the main body 200 to form the upper concave portion 219 and the darma-shaped cover hole 2100, and a daruma-shaped cylindrical body. And are integrally formed.

  The lower recess 219 is disposed such that its major axis extends in the left-right direction, and a cover hole 2100 penetrating in a racetrack shape is formed on the bottom of the lower recess 219. The racetrack shaped cover hole 2100 is arranged such that its major axis coincides with the major axis of the corresponding recess 219 when viewed from the front-rear direction. The opening area of the racetrack shaped cover hole 2100 is smaller than the opening area of the corresponding recess 219. The cylindrical body 218 (see FIG. 5) has a racetrack-shaped cylindrical body protruding from the back surface of the main body 200 to form the lower recess 219 and the racetrack-shaped cover hole 2100, and the cylindrical body A smaller racetrack-shaped cylinder is integrally formed.

  Moreover, the housing | casing 2 of this embodiment has four 2nd through-holes 22 for fixing to the switch box for two pieces, as shown in FIG. Each second through hole 22 is configured by combining a cover hole 2200 (see FIG. 1) of the cover 2A and a base hole 2201 (see FIG. 6) of the base 2B that faces the cover hole 2200. Hereinafter, the cover hole 2200 will be described first.

  The main body portion 200 has four cover holes 2200. The four cover holes 2200 correspond to the four J-shaped recesses 42 provided on the left and right edges of the second region 452 of the substrate 4 in a one-to-one relationship when viewed from the front-rear direction, It is formed. In other words, the four cover holes 2200 are arranged in the area around the substrate 4 when viewed in the front-rear direction.

  Here, the main body portion 200 has four cylindrical bodies 220 (see FIG. 5) that project rearward on the back surface thereof so as to reinforce the peripheries of the four cover holes 2200, respectively. Each cover hole 2200 is formed to penetrate the corresponding cylindrical body 220. Further, the main body portion 200 has, on its front surface, four recesses 221 (see FIG. 1) recessed in a racetrack shape toward the rear, and the cover holes 2200 described above are formed on the bottom surface of each recess 221 It is done.

  Specifically, the two recesses 221 above the vertical center of the main body 200 are arranged to be inclined with respect to the vertical direction so that the major axes thereof approach each other as it goes upward. Further, the two concave portions 221 located below the center of the main body 200 are inclined with respect to the vertical direction so that the major axes thereof approach each other as they go downward.

  Then, on the bottom surface of each recess 221, a cover hole 2200 penetrating in a racetrack shape is formed. The cover hole 2200 is arranged such that its major axis coincides with the major axis of the corresponding recess 221 when viewed in the front-rear direction. The opening area of the cover hole 2200 is smaller than the opening area of the corresponding recess 221. Each cylindrical body 220 (see FIG. 5) has a racetrack-shaped cylindrical portion projecting from the back surface of the main body portion 200 to form the recess 221 and the cover hole 2200, and a racetrack-shaped cylindrical smaller than the cylindrical portion. The part is integrally formed.

  Furthermore, as shown in FIG. 1, the housing 2 of the present embodiment has four third through holes 23 for fixing to, for example, three switch boxes. Each third through hole 23 is configured by combining a cover hole 2300 (see FIG. 1) of the cover 2A and a base hole 2301 (see FIG. 6) of the base 2B facing the cover hole 2300. Hereinafter, the cover hole 2300 will be described first.

  The main body portion 200 has four cover holes 2300. The four cover holes 2300 are formed in one-to-one correspondence with the four J-shaped recesses 43 provided on the left and right edges of the substrate 4 when viewed in the front-rear direction. In other words, the four cover holes 2300 are arranged in the area around the substrate 4 when viewed in the front-rear direction.

  Here, the main body portion 200 has four cylindrical bodies 230 (see FIG. 5) that project rearward on the back surface thereof so as to reinforce the peripheries of the four cover holes 2300, respectively. Each cover hole 2300 is formed to penetrate the corresponding cylindrical body 230. Further, the main body portion 200 has, on its front surface, four recessed portions 231 recessed in a racetrack shape toward the rear, and the cover holes 2300 described above are formed on the bottom surfaces of the respective recessed portions 231.

  Specifically, the two recesses 231 above the upper two recesses 221 are arranged obliquely with respect to the vertical direction so that the major axes thereof approach each other as it goes upward. Also, the two recesses 231 below the lower two recesses 221 are arranged obliquely with respect to the vertical direction so that the major axes thereof approach each other as they go downward.

  Then, on the bottom surface of each recess 231, a cover hole 2300 penetrating in a racetrack shape is formed. The cover hole 2300 is arranged such that its major axis coincides with the major axis of the corresponding recess 231 when viewed in the front-rear direction. The opening area of the cover hole 2300 is smaller than the opening area of the corresponding recess 231. The cylindrical body 230 (see FIG. 5) has a racetrack-shaped cylindrical portion projecting from the rear surface of the main body portion 200 to form the recess 231 and the cover hole 2300, and a racetrack-shaped cylindrical portion smaller than the cylindrical portion. And are integrally formed.

  In the front surface of the main body 200, six locking grooves 240 (see FIGS. 1 and 4) with which six locking claws 55 (see FIG. 5) protruding from the back surface of the decorative panel 5 lock one by one. have. The six locking grooves 240 are disposed three each on each of the left and right edges of the main body 200, and the three locking grooves 240 at each edge are at the upper end, the lower end, and the middle position in the vertical direction. It is in.

  In addition, the main body 200 has four holes 241 (see FIG. 1) on its front surface. Two of the four holes 241 are located under the two locking grooves 240 at the upper ends of the left and right edges of the main body 200, and the remaining two are at the lower ends of the left and right edges of the main body 200. Located on the two locking grooves 240 at the A screw 2C is inserted into each hole 241, passes through a through hole at the bottom of the hole 241, and is screwed into screw holes 244 (see FIGS. 4 to 6) at the four corners of the base 2B. It is assembled to 2B.

  As shown in FIG. 2B, the main body portion 200 has a recessed portion 205 that is recessed rearward from the main body portion 200 to the lower side wall 202 at the center position in the left-right direction at the lower edge of the front surface. A screw hole is provided on the surface of the recess 205 facing downward. Then, with the claws 56 (see FIGS. 2B and 5) protruding to the lower part of the back surface of the decorative panel 5 (see FIGS. 2B and 5) inserted into the depressions 205, the notch groove with the screw 2D at the tip of the claws 56 57 (see FIG. 5) and screwed into the screw hole.

  As shown in FIG. 5, the main body portion 200 has a pair of bosses 290 in the vicinity of the center in the vertical direction at the left and right edges of the back surface. A screw hole is formed on the rear end surface of each boss 290, and a screw 2E passing through the insertion hole 291 (see FIG. 6) of the base 2B is screwed.

  In addition, as shown in FIG. 5, the main body portion 200 has, on its back surface, substantially U-shaped frame shaped ribs 292 for connecting and reinforcing the four cylindrical bodies 220 and the four cylindrical bodies 230. doing. Further, as shown in FIG. 5, the main body portion 200 has bosses 293 at each of four corners inside the rib 292. The upper two bosses 293 have screw holes at their rear end faces, and a screw 2F (see FIG. 6) inserted from a hole 294 in the back of the base 2B is screwed into the screw hole of the boss 293. On the other hand, the lower two bosses 293 are formed such that their tips (formed to be smaller in diameter) fit into recesses in the tips of the bosses 295 on the front surface of the base 2B. At this time, the peripheral edge of the receiving portion 44 recessed in a semicircular arc shape at the four corners of the substrate 4 is sandwiched between the boss 293 and the boss 295, whereby the substrate 4 is stably accommodated in the housing 2 Ru.

  The lower side wall 202, as shown in FIG. 2B, has four drainage holes 206 for discharging the water (for example, rain water etc.) that has entered the housing 2 to the outside. The four drainage holes 206 are arranged side by side in the left-right direction. Further, the lower side wall 202 has a pair of insertion holes 207 at positions rearward of the four drain holes 206. The pair of insertion holes 207 are holes into which the protruding pieces 249 projecting downward from the lower edge of the base 2B are inserted one by one.

  By the way, as shown in FIG. 5 and FIG. 9, the cover 2A has a pair of claw portions 208 for temporarily holding the substrate 4 on the back surface thereof. The pair of claws 208 is disposed inside the rib 292 on the rear surface of the cover 2A and in the vicinity of the left and right edges of the exposure hole 215. Each claw portion 208 protrudes in a rectangular plate shape from the rear surface of the cover 2A toward the rear. The tips of the pair of claws 208 bend away from each other due to contact with the substrate 4, and when the substrate 4 passes over the tips, they are hooked on the left and right edges of the third region 453 of the substrate 4 by elastic return. As a result, the rearward displacement of the lower portion of the substrate 4 is restricted, and temporary holding of the substrate 4 with respect to the cover 2A is achieved. Therefore, at the time of manufacture of the intercom apparatus 1, the assembly | attachment of the board | substrate 4 to the housing | casing 2 becomes easy.

  When the substrate 4 is temporarily held, the cover 2A and the base 2B are fixed (fully fixed) with two screws 2E and two screws 2F, so that the substrate 4 has a cover 2A and a base. It is stably held so as to be sandwiched between 2B.

(2.4.3) Base The base 2B is formed in a rectangular plate shape as shown in FIGS. The base 2 </ b> B has a pair of side pieces 252 projecting forward, near both left and right edges of the front surface. Each side piece 252 has a substantially rectangular plate shape that is elongated in the vertical direction when viewed from the left and right direction. In addition, the base 2B has an upper end piece 253 protruding forward in the vicinity of the upper edge of the front surface. The left and right ends of the upper end piece 253 further project downward, and the upper end piece 253 is formed in a substantially U-shaped plate shape when viewed from the front-rear direction. The pair of side pieces 252 and the upper end piece 253 are configured to fit inside the upper side wall 201, the right side wall 203, and the left side wall 204 of the cover 2A when the cover 2A is assembled to cover the base 2B. .

  As described in the section “(2.4.2) Cover” above, the housing 2 has the two first through holes 21, and each first through hole 21 is a cover hole 2100 of the cover 2 A. And a base hole 2101 of the base 2B. Hereinafter, the base hole 2101 will be described.

  The base 2B has a pair of base holes 2101. The upper base hole 2101 corresponds to a part of the first through hole 21A, and the lower base hole 2101 corresponds to a part of the first through hole 21B. The pair of base holes 2101 are disposed in the projection area of the second area 452 of the substrate 4 as shown in FIG. 7 when viewed in the front-rear direction. In particular, each base hole 2101 is arranged within the projection area of the corresponding through hole 41 of the substrate 4.

  As shown in FIGS. 4 and 7, the base 2B has flat cylindrical members 254, 255 slightly projecting forward so as to respectively reinforce the peripheries of the upper and lower base holes 2101 on the front surface thereof. There is. The upper and lower base holes 2101 are formed to penetrate the cylindrical bodies 254 and 255, respectively.

  The opening shape of the upper base hole 2101 has substantially the same shape (dalma shape) and the same size as the opposing upper cover hole 2100 when viewed from the front-rear direction. The upper base hole 2101 is disposed such that the large diameter portion and the small diameter portion thereof are aligned in the vertical direction. The cylindrical body 254 also has a dharma-shaped outer edge along the periphery of the base hole 2101 when viewed in the front-rear direction.

  The opening shape of the lower base hole 2101 has substantially the same shape (race track type) and the same size as the opposing lower cover hole 2100 when viewed from the front-rear direction. The lower base hole 2101 is disposed such that the major axis thereof extends in the left-right direction. The cylindrical body 255 also has a racetrack-shaped outer edge along the periphery of the base hole 2101 when viewed from the front-rear direction.

  Here, as shown in FIG. 4, the cylindrical bodies 254 and 255 respectively have fitting grooves 254A and 255A which are recessed rearward at the front end surface thereof. The fitting groove 254A is formed over the entire circumference of the opening edge of the daruma-shaped cylindrical body 254 when viewed from the front-rear direction. The fitting groove 255A is formed over the entire circumference of the opening edge of the racetrack shaped cylindrical body 255 when viewed from the front and rear direction.

  On the other hand, as shown in FIG. 5, the cylindrical bodies 217 and 218 of the cover 2A respectively have convex fitting projections 217A and 218A which project rearward from the rear end face (end face of the opening edge). The fitting protrusion 217A is formed over the entire circumference of the opening edge of the daruma-shaped cylindrical body 217 when viewed from the front-rear direction. The fitting protrusion 218A is formed over the entire circumference of the opening edge of the racetrack-shaped cylindrical body 218 when viewed from the front-rear direction.

  Then, the fitting projection 217A of the cylindrical body 217 is fitted in the fitting groove 254A of the cylindrical body 254, whereby the cover hole 2100 and the base hole 2101 are connected in one in the front-rear direction and the first through hole 21A. Is configured. Further, in the through hole 41A of the substrate 4, the cylindrical body 217 and the cylindrical body 254 are disposed. In short, the first through hole 21A is disposed in the projection area of the through hole 41A when viewed from the front-rear direction.

  Further, by fitting the fitting projection 218A of the cylindrical body 218 into the fitting groove 255A of the cylindrical body 255, the cover hole 2100 and the base hole 2101 are connected in one in the front-rear direction, and the first through hole 21B is formed. Is configured. Further, in the through hole 41 </ b> B of the substrate 4, the cylindrical body 218 and the cylindrical body 255 are disposed. In short, the first through hole 21B is disposed in the projection area of the through hole 41B when viewed from the front-rear direction.

  Since the cylindrical body 217 and the cylindrical body 254 are joined without any gap by the above fitting, the entry of water into the housing 2 is suppressed even without using a waterproof packing or the like. Similarly, since the tubular body 218 and the tubular body 255 are joined without any gap by the above fitting, the entry of water into the housing 2 is suppressed even without using a waterproof packing or the like.

  In addition, as described in the section of “(2.4.2) Cover” above, the housing 2 has four second through holes 22, and each second through hole 22 is a cover of the cover 2A. It is comprised from the hole 2200 and the base hole 2201 of the base 2B. Further, the housing 2 has four third through holes 23, and each third through hole 23 is composed of a cover hole 2300 of the cover 2A and a base hole 2301 of the base 2B. The base holes 2201 and 2301 will be described below.

  The base 2B has four base holes 2201 and four base holes 2301. The four base holes 2201 and the four base holes 2301 have four J-shaped recesses 42 and four J-shaped recesses provided on the left and right edges of the substrate 4 when viewed from the front-rear direction. It is formed so as to correspond to the place 43 one by one. In other words, the four base holes 2201 and the four base holes 2301 are arranged in the area around the substrate 4 when viewed from the front-rear direction.

  The base 2B has four flat cylindrical bodies 256 and four cylindrical bodies 257 that project forward so as to reinforce the peripheries of the four base holes 2201 and the four base holes 2301 on the front surface thereof (FIG. 7). See). Each base hole 2201 is formed to penetrate the corresponding cylindrical body 256. Each base hole 2301 is formed to penetrate the corresponding cylindrical body 257.

  The opening shape of each base hole 2201 has substantially the same shape (race track type) and the same size as the opposing cover hole 2200 when viewed from the front-rear direction. Further, the opening shape of each base hole 2301 has substantially the same shape (race track type) and the same size as the facing cover hole 2300 when viewed from the front-rear direction.

  The major axis of each base hole 2201 coincides with the major axis of the opposing cover hole 2200 when viewed in the front-rear direction. Each cylindrical body 256 has a racetrack-shaped outer edge along the periphery of the base hole 2201 when viewed from the front-rear direction. Further, the major axes of the base holes 2301 coincide with the major axes of the opposing cover holes 2300 when viewed from the front-rear direction. Each cylindrical body 257 has an outer edge of a racetrack shape along the periphery of the base hole 2301 when viewed from the front-rear direction.

  Here, as shown in FIG. 7, the cylindrical bodies 256, 257 have fitting grooves 256A, 257A recessed rearward at their front end faces, respectively. The fitting grooves 256A, 257A are formed over the entire circumference of the opening edge of the racetrack-shaped cylindrical members 256, 257, respectively, as viewed from the front-rear direction.

  On the other hand, as shown in FIG. 5, the four cylindrical bodies 220 of the cover 2A each have a convex fitting protrusion 220A that protrudes rearward from the rear end face (end face of the opening edge). Similarly, the four cylindrical bodies 230 of the cover 2A respectively have convex fitting projections 230A that project rearward from the rear end surface (the end surface of the opening edge). Each of the fitting projections 220A, 230A is formed over the entire circumference of the opening edge of the cylindrical body 220, 230.

  Then, the fitting projection 220A of the cylindrical body 220 is fitted into the fitting groove 256A of the cylindrical body 256, whereby the cover hole 2200 and the base hole 2201 are connected in one in the front-rear direction and the second through hole 22 Is configured. When viewed from the front-rear direction, the corresponding tubular body 220 and tubular body 256 fit in each of the J-shaped recesses 42 of the substrate 4. Further, by fitting the fitting projection 230A of the cylindrical body 230 into the fitting groove 257A of the cylindrical body 257, the cover hole 2300 and the base hole 2301 are connected in one in the front-rear direction, and the third through hole 23 is formed. Is configured. When viewed from the front-rear direction, the corresponding tubular body 230 and the tubular body 257 fit in each of the J-shaped recesses 43 of the substrate 4. Since the tubular body 220 and the tubular body 256, and the tubular body 230 and the tubular body 257 are joined without any gap by the above-mentioned fitting, water in the housing 2 can be obtained without using a waterproof packing or the like. Intrusion is suppressed.

  As shown in FIG. 7, the base 2B has, at its front surface, substantially U-shaped rib 258 for connecting and reinforcing the four tubular members 256 and the four tubular members 257. . The rib 258 has a fitting groove 258A recessed rearward at its front end face. The fitting groove 258A is formed over the entire circumference of the rib 258. The fitting groove 258A is in communication with the fitting groove 256A of the four tubular members 256 and the fitting groove 257A of the four tubular members 257. On the other hand, the U-shaped frame shaped rib 292 of the cover 2A has a fitting protrusion 292A (see FIG. 5) for fitting in the fitting groove 258A. The fitting projections 292A are integrally formed with the fitting projections 220A of the four cylindrical bodies 220 and the fitting projections 230A of the four cylindrical bodies 230.

  By fitting the fitting projections 292A of the ribs 292 into the fitting grooves 258A of the ribs 258, the ribs are coupled to each other. Therefore, the substrate 4 is accommodated in a space (generally free of gaps) surrounded by the ribs 292 and the ribs 258, and the substrate 4 is accommodated particularly in the housing 2 without using a waterproof packing or the like. Infiltration of water into the space is reduced.

  As shown in FIG. 7, the base 2 </ b> B has a projecting wall 259 integrally connecting lower ends of the left and right sides of the rib 258. The projecting wall 259 is formed in the shape of a rectangular plate elongated in the left-right direction. The protruding wall 259 prevents damp air (such as steam) entering the housing 2 through the four drainage holes 206 in the lower side wall 202 of the cover 2A from entering the space in which the substrate 4 is housed. It is provided to

  Here, as shown in FIG. 6, the base 2B has a recess 250 at its back surface. That is, the housing 2 has the recess 250 on the back surface facing the switch box 200A. The recess 250 is disposed around the pair of first through holes 21, and the recess 250 is recessed in a direction (forward) away from the switch box 200A. The recess 250 has a substantially rectangular opening as viewed in the front-rear direction, and occupies about half of the rear surface of the base 2B.

  As shown in FIG. 6, the recess 250 is provided with a terminal block 6 having a plurality of terminals, and a wiring housing portion 251 for housing a wiring (connection line L1). In other words, the terminal block 6 mounted on the back surface of the substrate 4 is inserted into the block insertion hole 260 (see FIG. 6) formed on the inner bottom surface of the recess 250 and exposed from the recess 250. A waterproof packing (not shown) is provided between the peripheral edge of the block insertion hole 260 and the terminal block 6. The wire housing portion 251 generally corresponds to a region other than the region where the terminal block 6 in the recess 250 is exposed.

  The provision of the recess 250 improves the workability of the wiring connection of the connection line L1 to the terminal block 6, and also causes the connection line L1 to be sandwiched between the switch box and the housing 2. Occurrence can be reduced. In particular, in the present embodiment, the entire opening area of the pair of first through holes 21 is disposed in the recess 250. Therefore, the workability of the wiring connection is further improved, and the connection line L1 is sandwiched between the periphery of the first through hole 21 on the back side of the housing 2 and the periphery of the screw hole H1 of the switch box 200A. The occurrence of a situation can be reduced. In the present embodiment, the entire opening region of the first through hole 21 is disposed in the recess 250 as an example, but only a part thereof may be disposed in the recess 250. In short, the first through hole 21 is penetrated so that the center of the hole is generally located at, for example, the opening edge (boundary) of the recess 250, and a part of the opening region of the first through hole 21 is in the recess 250. , The rest may be disposed outside the recess 250.

  By the way, the first through holes 21A of the pair of first through holes 21 of the present embodiment are through holes having a dharma shape. That is, the first through hole 21A is formed to be connected to the first hole portion 21C (see FIG. 8) having the first diameter and the first hole portion 21C, and the second through hole 21A is smaller than the first diameter. And a second hole 21D (see FIG. 8) having a diameter. The first hole 21C and the second hole 21D are vertically aligned such that the first hole 21C is located on the lower side and the second hole 21D is located on the upper side. Therefore, for example, the intercom device 1 can be hooked by attaching a screw to the structure first and then passing the screw through the first hole 21C having a large diameter while performing work such as wiring connection. . In addition, after the work such as wiring connection, the housing 2 can be fixed (finally tightened) to the switch box through the second hole 21D. Therefore, the workability can be further improved.

(2.5) Cosmetic panel As shown in FIG. 2A, FIG. 4 and FIG. 5, the decorative panel 5 is elongated in the vertical direction as a whole. In addition, as shown in FIG. 5, the decorative panel 5 is in the form of a flat rectangular box whose back surface is open. The decorative panel 5 is formed of, for example, a material such as a synthetic resin.

  As shown in FIG. 4, the decorative panel 5 has, on its front surface, a first window 51 and a second window 52 penetrating the decorative panel 5 in the thickness direction. The first window 51 is configured to expose the first protrusion 210 of the cover 2 </ b> A to the outside of the decorative panel 5. Further, the second window 52 is configured to further expose the operation member 330 of the operation portion 33 exposed from the exposure hole 215 of the cover 2A to the outside of the decorative panel 5. When the intercom device 1 is viewed from the front-rear direction, the first window 51 is disposed within the projection area of the first area 451 of the substrate 4, and the second window 52 is within the projection area of the third area 453 of the substrate 4. Is located in

  In addition, as shown in FIG. 4, the decorative panel 5 has a plurality of slits 53 (nine in the illustrated example) penetrating the decorative panel 5 in the thickness direction on the front surface thereof. The plurality of slits 53 are arranged along the left-right direction such that the longitudinal direction of each of the slits 53 is along the vertical direction. The plurality of slits 53 are disposed in front of the sound passing opening 216 of the cover 2A, and the sound of the speaker 90 that is emitted from the sound passing opening 216 passes through the exterior of the makeup panel 5. The plurality of slits 53 are disposed in the projection area of the second area 452 of the substrate 4 when the intercom device 1 is viewed in the front-rear direction.

  As described above in the section “(2.4.2) Cover”, the decorative panel 5 has six locking claws 55 (see FIG. 5) on its back surface, and the cover 2A 6 The two locking grooves 240 (see FIGS. 1 and 4) are locked in one-to-one correspondence. Moreover, the decorative panel 5 has the claw piece 56 (refer FIG. 2B and FIG. 5) in the lower part of the back surface. Each locking claw 55 is locked in the corresponding locking groove 240 of the cover 2A, and the screw 2D is inserted into the notch groove 57 of the claw 56 in a state where the claw 56 is inserted into the recess 205 of the cover 2A. The cosmetic panel 5 is assembled to the cover 2A by screwing it into the screw hole in the recessed portion 205.

  Here, the decorative panel 5 has a notch recess 702 (see FIGS. 4 and 10). When viewed from the front and rear direction, the cutaway recess 702 is formed by cutting a central portion in the left and right direction at the upper edge of the first window 51 (see FIG. 4) into a rectangular shape elongated in the left and right direction. The notch recess 702 is recessed upward from the upper edge of the first window 51 by a dimension substantially equal to the thickness of the light shielding member 7.

  The upper surface in the notch recess 702 faces the upper end surface 703 of the first protrusion 210 when the decorative panel 5 is assembled to the housing 2. The light shielding member 7 contacts not only the upper end surface 703 of the first protrusion 210 but also the upper surface in the notch recess 702 when the rear end 705 is received in the receiving recess 700. In the present embodiment, the rear end portion 705 (fixing portion 70A) of the light shielding member 7 is held by the upper end surface 703 of the first protrusion 210 in the housing 2 and the upper surface in the notch recess 702 in the decorative panel 5 Ru. In short, when the light shielding member 7 is inserted into the insertion opening formed of the notch recess 702 and the upper end surface 703, the inner surface of the insertion opening comes in contact with the light shielding member 7, and the light shielding member 7 is easily changed. The dimensional relationship is defined so as not to drop out of the socket.

(2.6) Light Shielding Member The light shielding member 7 is configured to be able to change the light shielding range for light shielding with respect to a partial region of the lens 301 in the intercom device 1. In the present embodiment, as shown in FIG. 11, it is assumed that the light source causing the lens flare is the lighting fixture 502 installed on the ceiling 501 of the common corridor in the collective housing. Therefore, the light shielding member 7 is mainly disposed to shield the upper region of the lens 301 from light. However, the area of the light blocking lens 301 is not limited to the upper area, and may be changed according to the location of the light source causing the lens flare. For example, when the light source causing the lens flare is a light projector, the light shielding member 7 may be disposed to shield the lower region of the lens 301.

  The light shielding member 7 is formed of, for example, a material such as a synthetic resin. As shown in FIG. 10, the light blocking member 7 is, for example, a plate-like structure 7A formed in a bowl shape. The structures 7A are arranged to project in a direction (forward) away from the body A1. The projecting end surface (front end surface) of the structure 7A is curved in an arc shape when viewed from the up and down direction. The shape of the structure 7A is not particularly limited. For example, the shape of the structure 7A may be rectangular or trapezoidal when viewed in the vertical direction. The structure 7A is painted black, for example, in order to enhance the light absorbability, but is not particularly limited. The structure 7A may have a reflective surface that enhances the light reflectivity.

  The light shielding member 7 is configured to be attachable to and detachable from the container A1 as an example. Specifically, the structure 7A has a fixing portion 70A which is detachably fixed to the fixed portion 70B of the container A1. As described above, the fixing portion 70A includes the rear end portion 705, and a pair of projections 706 that project rearward from the rear end portion 705. The rear end portion 705 is accommodated in the accommodation recess 700 of the housing 2. The pair of protrusions 706 are respectively inserted into the pair of insertion holes 701. The light blocking range can be changed by the light blocking member 7 being removable from the body A1. That is, the light shielding range is eliminated by removing the light shielding member 7 from the container A1.

  About the attachment procedure of the light-shielding member 7, For example, in the state which the decorative panel 5 was assembled | attached to the housing | casing 2, through the insertion port which consists of the notch recess 702 of the decorative panel 5 and the upper end surface 703 of the 1st protrusion stand 210. The rear end portion 705 of the light shielding member 7 may be inserted into the housing recess 700 of the housing 2. Alternatively, after the rear end portion 705 of the light shielding member 7 is inserted into the housing recess 700 of the housing 2 first, the decorative panel 5 may be assembled to the housing 2. Thus, even after the construction of the intercom device 1 on the switch box or the like, the light shielding member 7 can be easily attached and removed not only by the construction contractor but also by the resident himself. In short, the work of installation and removal is easy.

  Here, the lens flare will be briefly described. In FIG. 11, when the light shielding member 7 is not provided, the imaging data of the visitor M1 imaged by the imaging unit 30 of the intercom device 1 is displayed on the display 10A of the communication device 10 (intercom base unit) in the dwelling unit It shows how it is being done. As shown in FIG. 11, the lighting fixture 502 may be installed on a ceiling 501 in the vicinity of the intercom device 1 (in particular, near the imaging area extending in front of the imaging unit 30). In this case, the light emitted from the lighting fixture 502 is re-reflected by the inner surface of the lens 301, whereby a granular image 503 of light of large, medium, and small circles, pentagons, hexagons, etc. is displayed on the display 10A. It may be reflected in the image (in FIG. 11, only a hexagon as an example). In particular, since the widening of the imaging unit has been advanced recently, the unintended lighting fixture 502 may enter the imaging area. Then, when the light shielding member 7 is not provided, as shown in FIG. 11, a plurality of granular images 503 of light overlap the periphery of the face of the visitor M1 who is the subject, and the call device 10 in the dwelling unit There is a possibility that the face of the visitor M1 becomes difficult to see for the resident who uses the.

  On the other hand, in the intercom device 1 of the present embodiment, the light shielding member 7 is attached to the body A1, so that the region above the lens 301 is shielded. Therefore, it is possible to suppress the decrease in the reliability of the imaging of the subject (visitor M1). Moreover, since the light shielding member 7 is the structure 7A formed in a bowl shape, it is possible to suppress the reduction in the reliability while having a simple configuration.

(3) Modifications Below, some modifications are listed. Below, the embodiment mentioned above is called a "basic example."

(3.1) Modification 1
In the basic example, when the structure 7A of the light shielding member 7 is attached to the container A1, the structure 7A is immovable with respect to the container A1. However, as shown in FIGS. 12A and 12B, the light shielding member 7 of the first modification is a structure 7B configured to be movable with respect to the container A1. The structure 7B is, as shown in FIG. 12A, a first position in which the whole is exposed to the outside from the body A1 and, as shown in FIG. 12B, the whole is generally accommodated in the body A1. It is configured to slide forward and backward in the range between the two positions.

  The structure 7B is formed in a rectangular plate shape, and has a knob 704 projecting upward at the front end. The rear end portion 705 of the structure 7B is bent upward in the left-right direction to form a hook portion.

  To attach the structure 7B, for example, remove the decorative panel 5 from the housing 2 and hook it so that the rear end portion (hook portion) 705 is positioned behind the notch recess 702 of the decorative panel 5, The panel 5 may be assembled to the housing 2. A portion in front of the rear end portion 705 is held between the upper end surface 703 of the first protrusion 210 in the housing 2 and the upper surface in the notch recess 702 in the decorative panel 5. The structure 7B can be easily removed by removing the decorative panel 5.

  The structure 7B can be slid forward and pulled out of the body A1 by hooking the knob 704 with a finger tip or a toe and pulling it forward. When the structure 7B is pulled out to the first position (see FIG. 12A), the rear end portion 705 is caught on the upper edge of the notch recess 702, so that it is suppressed from moving forward and dropping off . In addition, the structure 7B can be retracted into the container A1 by pushing the front end thereof backward (see FIG. 12B). According to this configuration, the amount of protrusion of the structure 7B with respect to the container A1 is variable, and the light shielding range can be easily changed.

  Although detailed illustration is omitted, a housing space (recess) for housing the structure 7B when the structure 7B is in the second position is provided on the front surface of the housing 2. It is desirable that the housing space does not communicate with the space in which the substrate 4 is housed, in consideration of the waterproof surface.

  The structure 7B may have a stopper structure that can be fixed at any position between the first position and the second position.

(3.2) Modification 2
The shapes of the structure 7A of the basic example and the structure 7B of the modification 1 were the same at the time of manufacture and at the time of use. As shown in FIGS. 13A and 13B and FIGS. 14A and 14B, the structure body 7B of the modification 2 is formed in a rectangular plate shape at the time of manufacture of the light shielding member 7, and has an arc shape or a table at the time of construction or use. It may be changeable to a shape such as a shape. 13A and 13B show a plan view of a structure 7B of the modification 2, and FIGS. 14A and 14B show a plan view of a structure 7B of another modification 2.

  In this case, it is preferable that a cut line is printed in advance or a groove-like cut line is formed in the structure 7B (see a dotted line 714 in FIG. 13A and a dotted line 707 in FIG. 14A). That is, unnecessary portions 708 and 709 are used separately from the structure 7B according to the environment (the position of the lighting fixture 502) where the intercom device 1 is actually installed or the preference of the user (for example, a resident) It is also good. As described above, by making it possible to change the shape of the light shielding member 7 at the time of construction or use, the light shielding range can be appropriately changed, and convenience can be improved.

(3.3) Modification 3
The structure 7B of the first modification is configured to be slidable in the front-rear direction with respect to the body A1. As shown in FIG. 15A, the structure 7C according to the third modification generally has a first position in which the whole is exposed to the outside from the body A1 and a whole in the body A1 as shown in FIG. 15B. It is rotatably configured in the range between the second position to be accommodated. The structure 7C is formed in a semicircular plate shape when viewed from the upper and lower direction. The structural body 7C has a knob 710 and a shaft 711.

  The shaft portion 711 is disposed at the center in the left-right direction slightly behind the end surface 712 (the front end surface in FIG. 15B) of the structure 7C, and protrudes in a bar-like shape along the vertical direction. On the other hand, the decorative panel 5 has a bearing portion (not shown) for pivotally supporting the shaft portion 711 so that the structure 7C can rotate on the back surface. In the third modification, the fixing portion 70A corresponds to the shaft portion 711 of the structure 7C, and the fixed portion 70B corresponds to the bearing portion. The bearing portion is preferably formed in a C-shape, for example, when viewed from the vertical direction, so that the shaft portion 711 can be easily attached and detached. The bearing portion may be provided not on the back surface of the decorative panel 5 but on the front surface of the housing 2.

  The knob 710 is disposed near an edge on one side (left side in FIG. 15B) of the end surface 712 of the structure 7C in the left-right direction, and is formed to stick out in a direction away from the edge. The knob 710 has dimensions of the structure 7C and the notch recess 702 so that the knob 7C can be accommodated in the notch recess 702 of the decorative panel 5 when the structure 7C is in either the first position or the second position. Relationships are defined.

  The knob 710 is configured to hit the front surface of the housing 2 in the notch recess 702 when the structure 7C is in either the first position or the second position. Specifically, an accommodation space 713 (a recess) for accommodating substantially the whole of the structure 7C except the knob 710 when the structure 7C is at the second position is provided on the front surface of the housing 2 ing. Then, the knob portion 710 hits the peripheral edge of the accommodation space 713, whereby the rotation of the structure 7C is restricted. In addition, as for the accommodation space 713, in consideration of a waterproof surface, it is desirable not to connect with the space in which the board | substrate 4 is accommodated.

  When the structure 7C is in the second position (see FIG. 15B), the end surface 712 is formed to be substantially flush with the front surface of the decorative panel 5. At this time, the knob 710 is also accommodated in the notch recess 702. Therefore, when the structure 7C is accommodated in the container A1 without being used, the presence of the structure 7C is inconspicuous, and the appearance of the interphone device 1 as a whole is suppressed from being impaired.

  To attach the structure 7C, for example, remove the decorative panel 5 from the housing 2 and insert the shaft 711 into the bearing on the back of the decorative panel 5, and assemble the decorative panel 5 to the housing 2 Good. Further, the structure 7C can be easily removed by removing the decorative panel 5.

  When the structure 7C is at the second position (see FIG. 15B), the knob 710 is rotated forward with the fingertip or toe from the inside of the notch recess 702, thereby rotating the shaft 711 as a rotation axis. It becomes possible to expose outside from A1. When the structure 7C reaches the first position (see FIG. 15A), the knob 710 moves to the right of the notch recess 702 to contact the front surface of the housing 2 in the notch recess 702, and the structure 7C. Further rotation is restricted. According to this configuration, the amount of protrusion of the structure 7C with respect to the container A1 is variable, and the light shielding range can be easily changed.

  The structure 7C may have a stopper structure which can be fixed at an arbitrary position between the first position (see FIG. 15A) and the second position (see FIG. 15B).

(3.4) Modification 4
In the basic example and the first to third modifications, the light shielding member 7 is a bowl-shaped structure. However, the light shielding member 7 is not limited to this, and may be a sticking member (seal) 7D, for example, as shown in FIG. The sticking member 7D is configured to be directly stuck to the surface of the lens 301.

  According to this configuration, the manufacturing cost of the light shielding member 7 can be reduced as compared to the case where the light shielding member 7 is a bowl-shaped structure. In addition, it is possible to easily change the light shielding range while making the work of attaching and removing the light shielding member 7 easy. In particular, if the intercom device 1 includes a plurality of sticking members 7D of different sizes and shapes, the contractor or the user (for example, a resident) appropriately selects one of the plurality of sticking members 7D and pastes it. Can be attached.

  In this case, in the region of the upper portion of the lens 301 (or the upper portion of the lens cover, if there is a lens cover), it becomes a mark (for example, in the form of a groove) so that the sticking member 7D can be easily positioned. The sticking part may be formed.

(3.5) Other Modifications In the basic example, the structure 7A of the light shielding member 7 is a separate body from the container A1, and is configured to be attachable to and detachable from the container A1. However, not limited to this, the light shielding member 7 may be formed integrally with the container A1 (the housing 2 or the decorative panel 5). In this case, it is preferable that the light shielding member 7 have an expandable structure (telescopic etc.) which can be partially expanded and contracted so that the light shielding range can be changed. Further, the structure 7B of the first modification and the structure 7C of the third modification are also configured to be removable from the container A1. However, the structure is not limited to this, and these structures may be formed integrally with the housing 2 or the decorative panel 5 of the container A1, and may not be removable.

  In the basic example, the number of the structures 7A of the light shielding member 7 is one. However, the intercom device 1 may include, for example, a plurality of structures 7A having different sizes and shapes of scissors. The construction contractor or the user (for example, a resident) may appropriately select one from the plurality of structures 7A and perform attachment.

  In the basic example, the cover 2A of the housing 2 is provided with the fixed portion 70B (the housing recess 700 and the insertion hole 701) to which the fixed portion 70A (the rear end 705 and the pair of projections 706) of the structure 7A is fixed. It was being done. However, the present invention is not limited to this, and the fixed portion 70B may be provided on the decorative panel 5, for example. That is, an accommodation recess and an insertion hole may be formed on the front surface of the decorative panel 5.

  In the basic example, the fixing portion 70A of the structure 7A is fixed by inserting the fixing portion 70A into the fixed portion 70B. However, the structure 7A may be fixed to the container A1 by screwing, an adhesive, (if it has a metal part), caulking and the like. The structure 7A may be fixed to the container A1 only by being held between the housing 2 and the decorative panel 5.

(4) Advantages As described above, the light blocking member (7) according to the first aspect can change the light blocking range to block light with respect to at least a partial region of the lens (301) in the intercom device (1) Is configured. The intercom device (1) includes a body (A1) and an imaging unit (30) having the above lens (301) arranged to be exposed from the body (A1). According to the first aspect, for example, even when the luminaire (502) is installed in the vicinity of the intercom device (1), the light emitted from the luminaire (502) by the light shielding member (7) It is possible to suppress the occurrence of lens flare caused by Therefore, it is possible to suppress the decrease in the reliability of the imaging of the subject (visitor M1 or the like).

  In the first aspect, the light shielding member (7) according to the second aspect is preferably a structure (7A, 7B, 7C) formed in a bowl shape. According to the second aspect, it is possible to suppress the decrease in the reliability of the imaging of the subject (visitor M1 or the like) with a simple configuration.

  Regarding the light shielding member (7) according to the third aspect, in the second aspect, the structure (7A, 7C) has a fixing portion (70A) detachably fixed to the container (A1) Is preferred. According to the third aspect, the light shielding member (7) can be attached and detached (if it is not necessary, it can be detached) according to the environment in which the intercom device (1) is installed, or the preference of the user. Therefore, the convenience can be improved.

  Regarding the light shielding member (7) according to the fourth aspect, in the third aspect, the housing (A1) covers the front surface of the housing (2) holding the lens (301) and the housing (2) And the panel (cosmetic panel 5) arrange | positioned at It is preferable that the to-be-fixed part (70B) to which a fixing | fixed part (70A) is fixed is provided in a housing | casing (2) or a panel (cosmetic panel 5). According to the fourth aspect, the operation when attaching (or removing) the light shielding member (7) to the intercom device (1) is facilitated. Therefore, the workability can be improved.

  Regarding the light shielding member (7) according to the fifth aspect, in the third aspect, the container (A1) covers the front surface of the housing (2) holding the lens (301) and the housing (2) And the panel (cosmetic panel 5) arrange | positioned at It is preferable that the fixing portion (70A) be sandwiched between the housing (2) and the panel (the decorative panel 5). According to the fifth aspect, the operation when attaching (or removing) the light shielding member (7) to the intercom device (1) is facilitated. For example, the light shielding member (7) can be attached and detached only by removing the panel (the decorative panel 5) from the housing (2).

  Regarding the light shielding member (7) according to the sixth aspect, in any one of the second to fifth aspects, the structure (7B, 7C) is configured to be movable with respect to the body (A1) Is preferred. According to the sixth aspect, the light shielding range can be easily changed.

  The light shielding member (7) according to the seventh aspect is preferably a sticking member (7D) in the first aspect. According to the seventh aspect, the manufacturing cost of the light shielding member (7) can be suppressed.

  An intercom device (1) according to an eighth aspect includes the light shielding member (7) according to any one of the first to seventh aspects, a body (A1), and an imaging unit (30). According to the eighth aspect, it is possible to provide the intercom device (1) provided with the light shielding member (7) capable of suppressing the decrease in the reliability of the imaging of the subject (visitor M1 or the like).

  An intercom device (1) according to a ninth aspect includes a housing (A1) and an imaging unit (30) having a lens (301) arranged to be exposed from the housing (A1). The body (A1) has a fixed portion (70B) to which a light shielding member (7) capable of changing a light shielding range to be shielded from at least a part of the lens (301) is detachably fixed. There is. According to the ninth aspect, it is possible to provide the intercom device (1) capable of attaching and detaching the light shielding member (7) capable of suppressing the decrease in the reliability regarding the imaging of the subject (visitor M1 or the like).

  An intercom system (100) according to a tenth aspect includes the intercom device (1) according to the eighth or ninth aspect, and a communication device (10) capable of communicating with the interphone device (1). According to the tenth aspect, it is possible to provide the intercom system (100) capable of suppressing the decrease in the reliability of the imaging of the subject (visitor M1 or the like).

1 intercom system A1 body 2 housing 5 makeup panel (panel)
7 Light shielding member 7A, 7B, 7C Structure 70A Fixing portion 70B Fixed portion 7D sticking member 30 Imaging unit 301 Lens 10 Communication device 100 Intercom system

Claims (10)

A light shielding range capable of changing a light shielding range with respect to at least a partial region of the lens in the intercom device including the housing and an imaging unit having a lens disposed to be exposed from the housing; A light shield member. The light shielding member according to claim 1, which is a structure formed in a bowl shape. The light shielding member according to claim 2, wherein the structure includes a fixing portion that is detachably fixed to the container. The body comprises a housing for holding the lens, and a panel disposed to cover a front surface of the housing.
The light blocking member according to claim 3, wherein a fixed portion to which the fixing portion is fixed is provided to the housing or the panel. The body comprises a housing for holding the lens, and a panel disposed to cover a front surface of the housing.
The light shielding member according to claim 3, wherein the fixing portion is sandwiched between the housing and the panel. The light shielding member according to any one of claims 2 to 5, wherein the structure is configured to be movable with respect to the container. The light shielding member according to claim 1, which is a sticking member. The intercom apparatus provided with the light-shielding member of any one of Claims 1-7, the said container, and the said imaging part. An intercom apparatus comprising: a body; and an imaging unit having a lens arranged to be exposed from the body,
An intercom device, wherein the container body has a fixed portion to which a light shielding member capable of changing a light shielding range for shielding light to at least a partial area of the lens is detachably fixed. An intercom system, comprising: the intercom apparatus according to claim 8; and a talking apparatus capable of talking with the intercom apparatus.

Images