Intercom unit and intercom system

Abstract

To facilitate mounting operations for a mounting unit and a terminal unit.SOLUTION: A mounting unit 3 is a structure for mounting an information terminal (intercom base unit 1), which operates as an intercom device, onto a construct. The mounting unit 3 is provided with a supporting part S1. The supporting part S1 includes a first supporting part S11 and a second supporting part S12. As a terminal unit 6 is moved in a certain direction intersecting a front-rear direction thereof, the terminal unit 6 is arranged in a predetermined mounting position relative to the supporting part S1. When the terminal unit 6 is at the mounting position, the first supporting part S11 supports the terminal unit 6 from the front, and the second supporting part S12 supports the terminal unit 6 from the rear.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] This disclosure generally relates to stomach Interphone unit, And I Interphone system M More specifically, the present disclosure relates to an information terminal wall For mounting to Noi Interphone unit, And I Interphone system M Regarding. [Background technology]

[0002] The electronic device (e.g., a built-in intercom) described in Patent Document 1 includes an electronic device main body (information terminal) fixed to a wall surface, a mounting member (mounting unit), and an electric wire connection member (terminal unit). The mounting member has a hole through which a first electric wire extending from the wall surface is inserted and holds the electronic device main body. The electric wire connection member is attached to the mounting member. The electric wire connection member has a connection portion on one surface side to which the first electric wire is connected, and a connection portion on the other surface side to which a second electric wire from the electronic device main body is connected. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-320202 A Summary of the Invention [Problem to be solved by the invention]

[0004] In electronic devices such as those described in Patent Document 1, there are cases where it is desirable to simplify the attachment work between the attachment unit and the terminal unit. For example, there are cases where it is desirable to simplify the attachment work compared to the case where the attachment unit and the terminal unit are attached by screwing.

[0005] The present disclosure aims to simplify the attachment work between a mounting unit and a terminal unit. [Means for solving the problem]

[0006] According to one aspect of the present disclosure Intercom unit is an information terminal that operates as an intercom device and the information terminal. of wall For mounting on The information terminal includes an attachment unit and a terminal unit for relaying wiring that electrically connects the information terminal to an external device of the information terminal. The mounting unit includes a first mounting portion, a second mounting portion, and a support portion. The first mounting portion includes The mounting unit is disposed in front of a recessed box disposed in a hole formed in the wall, The above wall The second mounting portion is The information terminal is disposed in front of the mounting unit. The information terminal can be attached to the support portion. The above Capable of supporting the terminal unit . before The support section: The wall has a long flange in one direction intersecting with the front-rear direction, which is a direction perpendicular to the wall surface of the wall, a hook protrusion provided on one end side of the flange in the longitudinal direction, and a through hole provided on the other end side of the flange in the longitudinal direction and penetrating the flange in the front-rear direction. and a reverse movement prevention section. The flange portion and the hooking projection each serve as a first support portion and a second support portion, respectively. The terminal unit includes a restricting structure having a protruding piece inserted into a space between the flange portion and the hooking projection, and a claw inserted into the through hole. The terminal unit is the position when the protrusion is inserted into the space. From pre-installation position The above By moving in one direction, The claw is inserted into the through hole. With respect to the support Attached When the terminal unit is in the mounting position, the first support portion supports the terminal unit from the front, and the second support portion supports the terminal unit from the rear. and the aforementioned regulatory structure teeth, When the terminal unit is in the mounting position, the claw is inserted into the through hole, The terminal unit is restricted from moving from the mounting position to the pre-mounting position in a direction opposite to the one direction.

[0008] The intercom system according to one aspect of the present disclosure includes the intercom unit, The intercom device operates as Communicating with the information terminal , a separate intercom device An intercom device. Effect of the Invention

[0010] The present disclosure has an advantage in that the attachment work between the attachment unit and the terminal unit can be simplified. [Brief description of the drawings]

[0011] [Figure 1]FIG. 1 is a block diagram of an intercom system according to an embodiment. [Diagram 2] FIG. 2 is a perspective view illustrating a state in which the intercom unit according to one embodiment is attached to a structure. [Diagram 3] FIG. 3 is an exploded perspective view of the intercom unit. [Figure 4] FIG. 4 is an exploded perspective view of the intercom unit. [Diagram 5] FIG. 5 is a perspective view of a main part of a mounting unit of the intercom unit. [Figure 6] FIG. 6 is a rear view of the intercom unit. [Figure 7] FIG. 7 is a perspective view of a terminal unit of the intercom unit. [Figure 8] FIG. 8 is an exploded perspective view of the terminal unit of the intercom unit. [Figure 9] FIG. 9 is a rear view showing an assembly procedure of the intercom unit. [Figure 10] FIG. 10 is a rear view showing an assembly procedure of the intercom unit. [Figure 11] FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. [Figure 12] FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] (Embodiment) The mounting unit, intercom unit, intercom system, and terminal unit according to the embodiments will be described below with reference to the drawings. However, the following embodiment is merely one of various embodiments of the present disclosure. The following embodiment can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. In addition, each figure described in the following embodiment is a schematic diagram, and the size and thickness ratios of each component in the figure do not necessarily reflect the actual dimensional ratios.

[0013] (overview) First, an overview of the intercom unit U1 and the intercom system 100 according to this embodiment will be described with reference to Figures 1 to 3. Note that in this embodiment, an example will be described in which the intercom system 100 is used in an apartment building, but the intercom system 100 is not limited to an intercom system for apartment buildings and may be, for example, an intercom system for a detached house.

[0014] The intercom unit U1 of this embodiment includes an attachment unit 3 (see FIG. 3), a terminal unit 6 (see FIG. 3), and an information terminal (intercom master unit 1). The intercom master unit 1 is an example of an intercom device that is a device having an intercom function. In this disclosure, the "intercom function" is a function that allows communication with an intercom device included in the intercom system. The intercom system 100 includes the intercom unit U1 and intercom devices (e.g., an intercom handset 91 and a lobby intercom 92) that communicate with the information terminal (intercom master unit 1) of the intercom unit U1.

[0015] As shown in Fig. 1, the intercom system 100 of this embodiment includes a plurality of intercom master units 1 (two in Fig. 1) as information terminals. The intercom system 100 further includes a plurality of intercom slave units 91 (two in Fig. 1), a lobby intercom 92, a management room master unit 93, and a control device 94. The intercom devices such as the intercom master unit 1, the intercom slave unit 91, the lobby intercom 92, and the management room master unit 93 have an intercom function and can communicate and make calls with the other intercom devices included in the intercom system 100.

[0016] The intercom master unit 1 and the intercom handset 91 are provided in a dwelling unit D1 of an apartment building. For example, the intercom master unit 1 is attached to a structure 900 within the dwelling unit D1 (for example, an interior wall of the dwelling unit D1; see FIG. 2), and the intercom handset 91 is provided at the exterior entrance of the dwelling unit D1. The lobby intercom 92 is provided in the lobby of the apartment building. The management room master unit 93 is provided in a management room of the apartment building. The control device 94 controls communication between each of the multiple intercom master units 1, the lobby intercom 92, and the management room master unit 93.

[0017] In this embodiment, the configuration of the intercom unit U1 including the intercom master unit 1 as an intercom device (and also as an information terminal) will be mainly described. However, the configuration of the intercom unit U1 in this embodiment may be applied to an intercom unit including other intercom devices having an intercom function (for example, an intercom slave unit 91, a lobby intercom 92, and a management room master unit 93).

[0018] Note that the arrows indicating each direction in the drawings are merely examples and are not intended to define the directions when the intercom unit U1 is in use. Also, the arrows indicating each direction in the drawings are merely indicated for the purpose of explanation and do not have any substance.

[0019] As shown in FIG. 3, the mounting unit 3 of the intercom unit U1 is configured to mount an information terminal (intercom master unit 1) that operates as an intercom device to a structure 900. The mounting unit 3 includes a first mounting portion A1, a second mounting portion A2, and a support portion S1 (see FIG. 5). The first mounting portion A1 can be mounted to the structure 900. The second mounting portion A2 can be mounted with the information terminal. The support portion S1 can support the terminal unit 6. The terminal unit 6 is configured to relay wiring that electrically connects an external device of the information terminal to the information terminal. The support portion S1 has a first support portion S11 (see FIG. 5) and a second support portion S12 (see FIG. 5). The terminal unit 6 moves in one direction that intersects with the front-rear direction, whereby the terminal unit 6 is disposed at a predetermined mounting position with respect to the support portion S1. When the terminal unit 6 is in the mounting position, the first support portion S11 supports the terminal unit 6 from the front, and the second support portion S12 supports the terminal unit 6 from the rear.

[0020] According to the mounting unit 3 of this embodiment, the terminal unit 6 can be supported by the support portion S1 of the mounting unit 3 by moving the terminal unit 6, thereby mounting the terminal unit 6 to the mounting unit 3. Therefore, unlike the case where the terminal unit 6 is mounted to the mounting unit 3 by screwing, no screws are required. This reduces the effort required for procuring and storing screws. In this way, according to the present disclosure, the mounting work of the mounting unit 3 and the terminal unit 6 is simplified.

[0021] In addition, the front-rear direction in this disclosure is defined by the orientation of the information terminal (intercom master unit 1). That is, the side of intercom master unit 1 on which an operation unit 11 and a display unit 12 (see FIG. 2) as user interfaces described below are provided is the front, and the side opposite the front is the rear. In this embodiment, the front-rear direction is along the horizontal direction, but it is not essential that the front-rear direction is along the horizontal direction, and it may be along the vertical direction, for example.

[0022] As shown in Figs. 7 and 8, the terminal unit 6 of this embodiment includes a first terminal 710, a second terminal 720, a first mounting portion M1, and a second mounting portion M2. The first terminal 710 is electrically connected to a first wiring (cable 77) that is electrically connected to an information terminal (intercom master unit 1) that operates as an intercom device. The second terminal 720 is electrically connected to a second wiring W2 (see Fig. 4) that is electrically connected to an external device of the information terminal. The first mounting portion M1 and the second mounting portion M2 are supported by a mounting unit 3 for mounting the information terminal to a structure 900. The mounting unit 3 includes a support portion S1 (see Fig. 5) that can support the terminal unit 6. The terminal unit 6 is moved in one direction that intersects with the front-rear direction, whereby the terminal unit 6 is disposed at a predetermined mounting position with respect to the support portion S1. When the terminal unit 6 is in the mounting position, the first mounting portion M1 is supported from the front by the support portion S1, and the second mounting portion M2 is supported from the rear by the support portion S1.

[0023] According to the terminal unit 6 of this embodiment, the attachment work between the attachment unit 3 and the terminal unit 6 is simplified.

[0024] In this embodiment, when the terminal unit 6 is in the mounting position, the first mounting portion M1 is supported from the front by the first support portion S11, and the second mounting portion M2 is supported from the rear by the second support portion S12.

[0025] (detail) (1) Function First, the intercom master unit 1 according to the present embodiment will be described in more detail with reference to the drawings.

[0026] As shown in FIG. 1, the intercom master unit 1 includes an operation unit 11, a display unit 12, a call unit 13, a communication unit 14, a control unit 15, and a housing 2 (see FIG. 3).

[0027] The display unit 12 includes a display panel having a display surface for displaying an image. The display panel is a display device such as a liquid crystal display or an organic EL (Electro Luminescence) display. The display unit 12 (display panel) displays a desired image. For example, the display unit 12 displays an image captured by an imaging unit connected to the intercom handset 91 or the lobby intercom 92 based on image data transmitted from the intercom handset 91 or the lobby intercom 92. The display unit 12 of this embodiment is configured with a touch panel including a touch pad and a display panel capable of receiving user operations. In other words, the display unit 12 is configured integrally with the operation unit 11.

[0028] The operation unit 11 accepts operations by users such as the resident of the dwelling unit D1 in which the intercom master unit 1 is installed. In this embodiment, the operation unit 11 is configured as a touch panel including a touch pad. The intercom master unit 1 generates a ring tone when, for example, a call is made from the lobby intercom 92 by a visitor. After a call is made, the operation unit 11 of the intercom master unit 1 is operated by the resident of the dwelling unit D1, allowing a call between the resident and the visitor via the intercom master unit 1 and the lobby intercom 92.

[0029] In addition, an entrance control device 95 that controls the locking / unlocking of the electric lock installed at the entrance door to the lobby is connected to the intercom master unit 1 via a control device 94. When a resident operates the operation unit 11, the electric lock is unlocked, allowing the resident to invite visitors into the apartment complex.

[0030] The communication unit 13 includes a speaker and a sound collecting unit. The speaker in this embodiment is an electrodynamic speaker having a cone-shaped diaphragm, a voice coil, a magnetic circuit, etc., and converts a sound signal (electrical signal) into sound. The sound collecting unit has a sound collecting hole 220 (see FIG. 2) that guides a sound emitted by a user, etc., to the inside of the housing 2, and a microphone. The microphone converts the sound into a sound signal (electrical signal). The speaker and the sound collecting unit are used for communication between the user and a visitor via, for example, another device (such as the lobby intercom 92, the management room master unit 93, or the intercom master unit 1 of another dwelling unit). The speaker is also used for generating a ring tone, an alarm sound, etc.

[0031] A fire detector 96 installed in dwelling unit D1 is connected to intercom master unit 1. When fire detector 96 detects the occurrence of a fire, intercom master unit 1 responds by, for example, sounding an alarm from a speaker. In other words, intercom master unit 1 has not only an intercom function, but also a function for alerting a fire.

[0032] The communication unit 14 is a communication interface, and is connected to a plurality of facilities (devices, systems). In this embodiment, an intercom slave 91, a fire detector 96, and a control device 94 are connected to the communication unit 14. The communication unit 14 communicates with the connected facilities.

[0033] As shown in FIG. 1, in each dwelling unit D1, the communication unit 14 is connected to the intercom handset 91. This allows the intercom master unit 1 and the intercom handset 91 to communicate with each other. The communication unit 14 is also connected to the lobby intercom 92 and the management room master unit 93 via the control device 94. This allows the intercom master unit 1 and the lobby intercom 92 to communicate with each other via the control device 94. The intercom master unit 1 and the management room master unit 93 are also configured to communicate with each other via the control device 94. The communication unit 14 may be composed of multiple communication units to which the intercom handset 91 or the control device 94 are individually connected.

[0034] The control unit 15 controls the operation unit 11, the display unit 12, the call unit 13, and the communication unit 14. The control unit 15 includes, for example, a computer system having one or more processors and a memory. The functions of the control unit 15 are realized by the processor of the computer system executing a program recorded in the memory of the computer system. The program may be recorded in the memory, or may be provided through a telecommunication line such as the Internet, or may be recorded and provided on a non-transitory recording medium such as a memory card.

[0035] (2) Structure (2.1) Mounting structure to structure 3 and 4, the intercom master unit 1 includes a housing 2. The intercom master unit 1 is integrated with a mounting unit 3 and a recessed box 8, and is attached to a structure 900. In this embodiment, the structure 900 is a wall material. The mounting unit 3 is a metal fitting.

[0036] The housing 2 has a first body 21 and a second body 22. The first body 21 is shaped like a rectangular parallelepiped. An operation unit 11 (display unit 12) is provided on the front surface of the first body 21. The second body 22 is shaped like a box with an open front surface. The second body 22 protrudes from the rear surface of the first body 21.

[0037] The mounting unit 3 is attached to the second body 22. More specifically, the mounting unit 3 is screwed to the second body 22. The mounting unit 3 has a rectangular frame shape. The mounting unit 3 is inserted into a through hole 901 formed in the structure 900.

[0038] The internal space of the housing 2 accommodates various devices and electric circuits of the intercom master unit 1, such as a speaker and a microphone of a conversation unit 13 (see FIG. 1).

[0039] A terminal unit 6 is attached to the inside of the mounting unit 3. The terminal unit 6 relays wiring that electrically connects the intercom master unit 1 and a device (e.g., an intercom slave unit 91) external to the intercom master unit 1. That is, the terminal unit 6 is connected to one or more first wirings (cables 77) connected to the intercom master unit 1, and is also connected to one or more second wirings W2 (see FIG. 4) that pass through the back side of the structure 900. Each of the one or more first wirings is connected to a corresponding second wiring W2 in the terminal unit 6. For example, each of the one or more first wirings and the one or more second wirings W2 includes a power line and a communication line, and the power line of the one or more first wirings is connected to the power line of the one or more second wirings W2, and the communication line of the one or more first wirings is connected to the communication line of the one or more second wirings W2.

[0040] The recessed box 8 is disposed at the rear of the structure 900 and is fixed thereto. The recessed box 8 is shaped like a rectangular parallelepiped. The recessed box 8 has a recess 80 on its front side. The mounting unit 3 is fitted into the recess 80. The mounting unit 3 is further attached to the structure 900 using a fastening member B1 (see FIG. 6) such as a screw or a bolt. As a result, the intercom master unit 1 is attached to the structure 900 via the mounting unit 3 with at least a portion of the first body 21 protruding forward of the structure 900. FIG. 6 is a rear view of the intercom unit U1 in a state in which the intercom master unit 1 is attached to the structure 900 via the mounting unit 3, with the structure 900 and the recessed box 8 not shown.

[0041] The embedded box 8 has a plurality of (in this embodiment, eight as shown in FIGS. 3 and 4) wire passage holes 81 for passing the second wiring W2 connected to the terminal unit 6 therethrough.

[0042] (2.2) Mounting unit 3 to 5, the mounting unit 3 includes a mounting main body 30, a plurality of (four in FIG. 3) mounting plates 31, a plurality of (four in FIG. 3) holding projections 33, a flange portion 34, a hook projection 35, a movement restricting portion 36, and an outer frame portion 37. These are integrally formed. That is, the mounting unit 3 is made of a single member.

[0043] As described above, the mounting unit 3 includes the support portion S1. The support portion S1 has a flange portion 34, a hooking projection 35, and a movement restricting portion 36. The flange portion 34 serves as both the first support portion S11 and the second support portion S12. The hooking projection 35 serves as both the first support portion S11 and the second support portion S12. In other words, the first support portion S11 and the second support portion S12 are made of the same member.

[0044] The shape of the mounting body 30 is a square tube. When viewed from the front-rear direction, the shape of the mounting body 30 is a rectangular frame. The mounting body 30 has a first wall portion 301, a second wall portion 302, a third wall portion 303, and a fourth wall portion 304. The first wall portion 301 and the third wall portion 303 have a length in the left-right direction. The first wall portion 301 is located above the third wall portion 303. The second wall portion 302 and the fourth wall portion 304 have a length in the up-down direction. The second wall portion 302 connects the left end of the first wall portion 301 to the left end of the third wall portion 303. The fourth wall portion 304 connects the right end of the first wall portion 301 to the right end of the third wall portion 303.

[0045] Two of the four mounting plates 31 are aligned vertically and protrude from the left end (second wall portion 302) of the mounting body 30. The remaining two of the four mounting plates 31 are aligned vertically and protrude from the right end (fourth wall portion 304) of the mounting body 30.

[0046] Each mounting plate 31 has a fastening hole 310 through which a fastening member B1 (see FIG. 6) is passed. The fastening member B1 is fastened so as to pass through the fastening hole 310 of each mounting plate 31 and a groove portion 902 formed in the structure 900, thereby mounting the mounting unit 3 to the structure 900. In other words, each mounting plate 31 functions as a first mounting portion A1 that can be attached to the structure 900.

[0047] The four holding protrusions 33 correspond one-to-one to the four mounting plates 31. Each holding protrusion 33 protrudes forward from the corresponding mounting plate 31. Each holding protrusion 33 is inserted into the housing 2. Furthermore, each holding protrusion 33 supports the housing 2 from below. In this way, the intercom master unit 1 is attached to the mounting unit 3. In other words, each holding protrusion 33 functions as a second mounting portion A2 to which the intercom master unit 1 can be attached.

[0048] The flange portion 34 is provided along the first wall portion 301 of the mounting body 30. The flange portion 34 protrudes downward from the rear end of the first wall portion 301. The flange portion 34 has a reverse movement prevention portion 340. The reverse movement prevention portion 340 is a through hole.

[0049] The hook protrusion 35 is provided at the rear end of the mounting unit 3. The hook protrusion 35 protrudes from the flange portion 34. The hook protrusion 35 has a length in the left-right direction. A gap 350 is formed between the hook protrusion 35 and the flange portion 34. In addition, a space 351 is provided to the right of the gap 350.

[0050] The movement restricting portion 36 is provided at the rear end of the mounting unit 3. The movement restricting portion 36 protrudes from the second wall portion 302 toward the center of the mounting body 30. The movement restricting portion 36 has a length in the left-right direction. The shape of the movement restricting portion 36 when viewed from the left-right direction is L-shaped.

[0051] The outer frame portion 37 protrudes from the front end of the mounting body 30 to the outside of the mounting body 30. The outer frame portion 37 is provided along the outer edge of the mounting body 30. The outer frame portion 37 is connected to the four mounting plates 31.

[0052] (2.3) Terminal Unit As shown in FIG. 7, the terminal unit 6 has a housing 60. The housing 60 includes a first housing 61 and a second housing 62. The first housing 61 is shaped like a box with an opening on the rear surface. The second housing 62 is shaped like a box with an opening on the front surface. The first housing 61 and the second housing 62 are joined together with their openings butted against each other to form one housing 60.

[0053] The first housing 61 includes a plurality of (two in FIG. 7) fitting holes 610. The terminal unit 6 further has a plurality of (two in FIG. 7) protrusions 63 protruding from the second housing 62. The first housing 61 and the second housing 62 are coupled together by inserting the protrusions 63 into the respective fitting holes 610.

[0054] A part of the rear surface 611 (second mounting portion M2) of the first housing 61 protrudes above the upper surface of the second housing 62.

[0055] The terminal unit 6 further has a plurality of (six in FIG. 7) protruding members 64 each protruding from the top surface of the first housing 61. Each of the plurality of protruding members 64 is an example of the second mounting portion M2. The plurality of protruding members 64 are lined up in the left-right direction. The rear surfaces of the plurality of protruding members 64 are flush with the rear surface 611 of the first housing 61.

[0056] The terminal unit 6 further includes a restricting structure 65, a protruding piece 66, and a rib 67, each of which protrudes from the second housing 62. The restricting structure 65, the protruding piece 66, and the rib 67 are each an example of a first mounting portion M1.

[0057] The restriction structure 65 protrudes from near the left end of the upper surface of the second housing 62. The restriction structure 65 has a claw 650. The claw 650 is inserted into the reverse restriction portion 340 (through hole) of the mounting unit 3 (see FIG. 6).

[0058] The protrusion 66 protrudes from near the right end of the upper surface of the second housing 62. The protrusion 66 includes a pillar portion 661 and a top plate portion 662. The pillar portion 661 protrudes upward from the upper surface of the second housing 62. The shape of the pillar portion 661 in a cross section perpendicular to the up-down direction is L-shaped. The top plate portion 662 is connected to the pillar portion 661 and covers the pillar portion 661 from above. The shape of the top plate portion 662 is a rectangular plate.

[0059] The rib 67 has a length in the left-right direction. The rib 67 protrudes from a position on the upper surface of the second housing 62 between the restriction structure 65 and the protruding piece 66. The rib 67 is provided behind the rear surface 611 (second mounting portion M2) of the first housing 61 with a gap between them.

[0060] As shown in FIGS. 7 and 8, the terminal unit 6 further includes a first terminal block 71, a plurality of second terminal blocks 72 (two in FIG. 7), a first board 73, a second board 74, electronic components 75 and 76, and a cable 77. The first terminal block 71 includes a first terminal 710. Each of the plurality of second terminal blocks includes a plurality of second terminals 720. The first terminal block 71 and the plurality of second terminal blocks 72 are mounted on the first board 73. The electronic components 75 and 76 are mounted on the second board 74. The first terminal block 71, the plurality of second terminal blocks 72, the first board 73, the second board 74, and the electronic components 75 and 76 are accommodated in the housing 60.

[0061] A cable 77 serving as a first wiring is connected to the first terminal 710. The first wiring is also connected to the intercom master unit 1. That is, the first wiring connects between the intercom master unit 1 and the first terminal 710. A second wiring W2 (see FIG. 4) is connected to each of the second terminals 720. That is, a plurality of second wirings W2 are connected to the terminal unit 6. The plurality of second wirings W2 also pass behind the structure 900 (see FIG. 2) and are connected to a device (e.g., the intercom slave unit 91) external to the intercom master unit 1. An electric circuit consisting of the first wiring branches in the first board 73 and is connected to a plurality of second wirings W2.

[0062] (3) Installation procedure Next, an example of a construction procedure for attaching intercom master unit 1 to structure 900 will be described.

[0063] In the initial state, as shown in FIG. 3, the housing 2, the mounting unit 3, the terminal unit 6, and the embedded box 8 are separated from each other. The construction procedure includes the following first to fourth steps. In the first step, a worker attaches the embedded box 8 to the structure 900. In the second step after the first step, a worker attaches the mounting unit 3 to the structure 900. In the third step after the second step, a worker attaches the terminal unit 6 to the mounting unit 3. In the fourth step after the third step, a worker attaches the housing 2 to the mounting unit 3. Through the above steps, the intercom master unit 1 is attached to the structure 900 via the mounting unit 3.

[0064] The third step of attaching the terminal unit 6 to the mounting unit 3 will be described below. As shown in Figs. 9 and 11, the worker first inserts the terminal unit 6 between the flange 34 of the mounting unit 3 and the movement restricting portion 36 below the flange 34. More specifically, the worker moves the terminal unit 6 from below the flange 34 to above so that the flange 34 is inserted between the second mounting portion M2 (the rear surface 611 of the first housing 61 and the multiple protruding members 64) and the first mounting portion M1 (the restricting structure 65 and the rib 67) behind the second mounting portion M2. As a result, the housing 60 (the second housing 62) of the terminal unit 6 is placed with a portion near its right end on the movement restricting portion 36, as shown in Fig. 9.

[0065] At this time, the worker adjusts the position of the terminal unit 6 in the left-right direction so that the protrusion 66 is inserted into the space 351 to the right of the hook protrusion 35 and the claw 650 of the regulating structure 65 is positioned to the right of the reverse movement regulating portion 340 (through hole).

[0066] Next, the worker moves the terminal unit 6 in one direction (leftward) while bringing the rib 67 into contact with the flange portion 34. That is, the worker moves the terminal unit 6 to the left while sliding the terminal unit 6 on the surface of the mounting unit 3. As a result, the claw 650 of the regulating structure 65 is inserted into the reverse movement regulating portion 340 (through hole) as shown in Figs. 10 and 12. In addition, the top plate portion 662 (see Fig. 8) of the protruding piece 66 is placed on the hooking projection 35, and the pillar portion 661 (see Fig. 8) of the protruding piece 66 moves rearward of the hooking projection 35.

[0067] This completes the third step of mounting the terminal unit 6 to the mounting unit 3. That is, when the third step is completed, the terminal unit 6 is placed in a predetermined mounting position as shown in Figures 10 and 12. When the terminal unit 6 is in the mounting position, the first mounting portion M1 of the terminal unit 6 is supported from the front by the first support portion S11 of the mounting unit 3, and the second mounting portion M2 of the terminal unit 6 is supported from the rear by the second support portion S12 of the mounting unit 3.

[0068] More specifically, the terminal unit 6 has a restricting structure 65, a protruding piece 66, and a rib 67 as the first mounting portion M1. The restricting structure 65 is supported from the front by the peripheral edge of the reverse movement restricting portion 340 (through hole) of the flange portion 34 (first support portion S11). The pillar portion 661 of the protruding piece 66 is supported from the front by the hook projection 35 (first support portion S11). The rib 67 is supported from the front by the flange portion 34.

[0069] As described above, the flange 34 and the hooking projection 35 serve as the first support S11 and the second support S12, respectively. The terminal unit 6 has a second mounting portion M2 (the rear surface 611 of the first housing 61 and the multiple protruding members 64). The rear surface 611 is supported from behind by the flange 34 (the second support S12). The multiple protruding members 64 are supported from behind by the flange 34. Furthermore, the rightmost protruding member 64 among the multiple protruding members 64 is supported from behind by the hooking projection 35 (the second support S12).

[0070] Furthermore, when the terminal unit 6 is in the mounting position, the claw 650 of the regulating structure 65 is inserted into the reverse movement regulating portion 340 (through hole). This makes it more difficult for the terminal unit 6 to move rightward compared to a case in which the regulating structure 65 and the reverse movement regulating portion 340 are not present. That is, the reverse movement regulating portion 340 of the support portion S1 regulates the terminal unit 6 from moving in a direction opposite to the one direction (leftward) from the mounting position. Furthermore, the regulating structure 65 of the terminal unit 6 regulates the terminal unit 6 from moving in a direction opposite to the one direction (leftward) from the mounting position.

[0071] The restricting structure 65 and the reverse movement restricting portion 340 also restrict the terminal unit 6 from moving in one direction (leftward) from the attachment position.

[0072] By pushing backward the claw 650 of the regulating structure 65, the terminal unit 6 can be moved left and right from the mounting position. This makes it possible to remove the terminal unit 6 from the mounting unit 3.

[0073] Furthermore, when the terminal unit 6 is in the mounting position, the movement restricting portion 36 is located below the housing 60 of the terminal unit 6. The downward movement of the terminal unit 6 is restricted by the housing 60 coming into contact with the movement restricting portion 36. In other words, the movement restricting portion 36 of the support portion S1 restricts the terminal unit 6 from moving from the mounting position along a direction perpendicular to both the one direction (leftward) and the front-rear direction (i.e., downward).

[0074] As described above, when the terminal unit 6 is in the mounting position, the movement of the terminal unit 6 is restricted. The movement of the terminal unit 6 in the front-rear direction is restricted by the first mounting portion M1 of the terminal unit 6 being supported from the front by the first support portion S11 and the second mounting portion M2 being supported from the rear by the second support portion S12. The movement of the terminal unit 6 in the left-right direction is restricted by the restricting structure 65 and the reverse movement restricting portion 340. The movement of the terminal unit 6 in the left-right direction is also restricted by the projection 66 being disposed in the gap 350 and the space 351. The upward movement of the terminal unit 6 is restricted by the contact between the upper surface of the housing 60 (the second housing 62) and the flange portion 34. The downward movement of the terminal unit 6 is restricted by the contact of the housing 60 with the movement restricting portion 36. The downward movement of the terminal unit 6 is also restricted by the contact of the top plate portion 662 of the projection 66 with the hook protrusion 35.

[0075] Next, the first, second and fourth steps executed before and after the third step will be described.

[0076] In a first step, the worker attaches the recessed box 8 to the structure 900. More specifically, the worker, for example, screws the recessed box 8 to the structure 900. In this way, the recessed box 8 is fixed to the rear surface of the structure 900. Also, the recessed portion 80 of the recessed box 8 is disposed at the back of the through hole 901 formed in the structure 900.

[0077] In the second step, the worker attaches the mounting unit 3 to the structure 900. That is, the worker inserts the mounting body 30 into the recess 80 through the through hole 901. Furthermore, the worker overlaps the fastening hole 310 formed in the mounting plate 31 with the groove portion 902 formed in the structure 900 in the front-rear direction, and passes the fastening member B1 through, thereby joining the mounting unit 3 and the structure 900. Upon completion of the second step, the multiple mounting plates 31 and the outer frame portion 37 come into contact with the front surface 90F of the structure 900.

[0078] In the fourth step, the worker attaches the housing 2 to the mounting unit 3. That is, first, the worker connects one end of the cable 77 to the intercom master unit 1, and the other end to the first terminal 710 of the terminal unit 6. After that, the worker passes the holding protrusions 33 of the mounting unit 3 through each of the multiple holes formed in the housing 2. The holding protrusions 33 support the housing 2 while contacting the upper parts of the inner edges of the holes.

[0079] Through the above-mentioned procedures, intercom master unit 1 is attached to structure 900.

[0080] As shown in FIG. 5, the support portion S1 (the flange portion 34, the hook projection 35, and the movement restricting portion 36) is provided at the rear end of the mounting unit 3. When the first mounting portion A1 (the mounting plate 31) is attached to the structure 900, the support portion S1 is located behind the front surface 90F of the structure 900. This allows the thickness of the portion of the mounting unit 3 that protrudes forward of the structure 900 to be reduced compared to a case in which a part of the support portion S1 is provided in front of the structure 900. In FIG. 12, the structure 900 is illustrated by a virtual line. In this embodiment, the multiple mounting plates 31, the multiple holding projections 33, and the outer frame portion 37 of the mounting unit 3 are provided in front of the structure 900.

[0081] 12, the second mounting portion A2 (holding protrusion 33) is located in front of the front surface 90F of the structure 900 when the first mounting portion A1 (mounting plate 31) is attached to the structure 900. This makes it easier to attach the intercom master unit 1 to the second mounting portion A2 in a state in which the first mounting portion A1 (mounting plate 31) is attached to the structure 900, compared to a case in which the second mounting portion A2 is located at the rear of the structure 900. Also, the intercom master unit 1 is attached to the second mounting portion A2 in front of the structure 900. Therefore, unlike a case in which the second mounting portion A2 is disposed inside the through hole 901 of the structure 900 or at the rear of the structure 900, the dimensions of the intercom master unit 1 can be made larger than the dimensions of the through hole 901.

[0082] (Modification) Modifications of the embodiment will be listed below. The following modifications may be implemented in appropriate combination.

[0083] It is not essential that the mounting plate 31 has the first mounting portion A1 and the second mounting portion A2 separately. The mounting unit 3 may have a member that serves as both the first mounting portion A1 and the second mounting portion A2.

[0084] It is not essential that one member (the flange portion 34 or the hook projection 35) serves as both the first support portion S11 and the second support portion S12. The mounting unit 3 may separately include the first support portion S11 that supports the first mounting portion M1 from the front and the second support portion S12 that supports the second mounting portion M2 from the rear.

[0085] In the embodiment, a member of the mounting unit 3 (the flange portion 34) is inserted between two members of the terminal unit 6 (the first mounting portion M1 and the second mounting portion M2, for example, the rib 67 and the protruding member 64). This allows the terminal unit 6 to be attached to the mounting unit 3. However, the configuration for attaching the terminal unit 6 to the mounting unit 3 is not limited to this configuration. For example, the terminal unit 6 may be attached to the mounting unit 3 by inserting a member of the terminal unit 6 (a member serving as the first mounting portion M1 and the second mounting portion M2) between two members of the mounting unit 3 (the first support portion S11 and the second support portion S12).

[0086] The numbers of the first mounting portions M1, the second mounting portions M2, the first supporting portions S11, and the second supporting portions S12 in the embodiment are merely examples, and the numbers of each of these may be one or more.

[0087] In the embodiment, the terminal unit 6 is placed in the mounting position by moving leftward. However, the terminal unit 6 is not limited to being placed in the leftward direction, and may be placed in the mounting position by moving in a direction intersecting the front-rear direction. For example, the terminal unit 6 may be placed in the mounting position by moving rightward, upward, or downward.

[0088] (summary) The above-described embodiments and the like disclose the following aspects.

[0089] The mounting unit (3) according to the first aspect is configured to mount an information terminal (intercom master unit 1) that operates as an intercom device to a structure (900). The mounting unit (3) includes a first mounting portion (A1), a second mounting portion (A2), and a support portion (S1). The first mounting portion (A1) is mountable to the structure (900). The second mounting portion (A2) is mountable to the information terminal (intercom master unit 1). The support portion (S1) is capable of supporting a terminal unit (6). The terminal unit (6) is configured to relay wiring that electrically connects a device external to the information terminal (intercom master unit 1) and the information terminal (intercom master unit 1). The support portion (S1) includes a first support portion (S11) and a second support portion (S12). The terminal unit (6) is disposed at a predetermined mounting position with respect to the support portion (S1) by moving the terminal unit (6) in one direction intersecting the front-rear direction. When the terminal unit (6) is at the mounting position, the first support portion (S11) supports the terminal unit (6) from the front, and the second support portion (S12) supports the terminal unit (6) from the rear.

[0090] According to the above configuration, the terminal unit (6) can be supported by the support portion (S1) of the mounting unit (3) by moving the terminal unit (6), and thus the terminal unit (6) can be attached to the mounting unit (3). Therefore, unlike the case where the terminal unit (6) is attached to the mounting unit (3) by screwing, no screws are required. This reduces the effort required for procuring and storing screws. Thus, according to the present disclosure, the attachment work of the mounting unit (3) and the terminal unit (6) is simplified.

[0091] In the mounting unit (3) according to the second aspect, in the first aspect, the support portion (S1) further includes a reverse movement prevention portion (340). The reverse movement prevention portion (340) prevents the terminal unit (6) from moving in a direction opposite to the one direction from the mounting position.

[0092] According to the above configuration, the possibility that the terminal unit (6) falls off from the mounting unit (3) can be reduced.

[0093] In the mounting unit (3) according to the third aspect, in the first or second aspect, the support portion (S1) further includes a movement restricting portion (36). The movement restricting portion (36) restricts the movement of the terminal unit (6) from the mounting position along a direction perpendicular to both the one direction and the front-rear direction.

[0094] According to the above configuration, the possibility that the terminal unit (6) falls off from the mounting unit (3) can be reduced.

[0095] In addition, in the mounting unit (3) according to the fourth aspect, in any one of the first to third aspects, the support portion (S1) is located behind the front surface (90F) of the structure (900) when the first mounting portion (A1) is attached to the structure (900).

[0096] According to the above configuration, the thickness of the portion of the mounting unit (3) that protrudes forward of the structure (900) can be made smaller than when a portion of the support portion (S1) is provided in front of the structure (900).

[0097] In addition, in the mounting unit (3) according to the fifth aspect, in any one of the first to fourth aspects, the second mounting portion (A2) is located in front of the front surface (90F) of the structure (900) when the first mounting portion (A1) is attached to the structure (900).

[0098] According to the above configuration, it is easy to attach the information terminal (intercom master unit 1) to the second attachment portion (A2) with the first attachment portion (A1) attached to the structure (900). Also, unlike the case where the second attachment portion (A2) is disposed inside the through-hole (901) of the structure (900) or behind the structure (900), the dimensions of the information terminal (intercom master unit 1) can be made larger than the dimensions of the through-hole (901).

[0099] In the mounting unit (3) according to the sixth aspect, in any one of the first to fifth aspects, the first support portion (S11) and the second support portion (S12) are made of the same member.

[0100] According to the above configuration, the configuration of the support portion (S1) can be simplified.

[0101] The configurations other than those of the first aspect are not essential to the mounting unit (3) and may be omitted as appropriate.

[0102] An intercom unit (U1) according to a seventh aspect includes the mounting unit (3) according to any one of the first to sixth aspects, a terminal unit (6), and an information terminal (intercom master unit 1).

[0103] According to the above configuration, the attachment work between the attachment unit (3) and the terminal unit (6) is simplified.

[0104] In addition, an intercom system (100) according to an eighth aspect includes an intercom unit (U1) according to the seventh aspect and an intercom device (e.g., an intercom handset 91 and a lobby intercom 92) that communicates with an information terminal (intercom master unit 1) of the intercom unit (U1).

[0105] According to the above configuration, the attachment work between the attachment unit (3) and the terminal unit (6) is simplified.

[0106] The terminal unit (6) according to the ninth aspect includes a first terminal (710), a second terminal (720), a first mounting portion (M1), and a second mounting portion (M2). The first terminal (710) is electrically connected to a first wiring (cable 77) that is electrically connected to an information terminal (intercom master unit 1) that operates as an intercom device. The second terminal (720) is electrically connected to a second wiring (W2) that is electrically connected to an external device of the information terminal (intercom master unit 1). The first mounting portion (M1) and the second mounting portion (M2) are supported by a mounting unit (3) for mounting the information terminal (intercom master unit 1) to a structure (900). The mounting unit (3) includes a support portion (S1) capable of supporting the terminal unit (6). The terminal unit (6) is moved in a direction intersecting the front-rear direction, whereby the terminal unit (6) is disposed at a predetermined mounting position relative to the support portion (S1). When the terminal unit (6) is in the mounting position, the first mounting portion (M1) is supported from the front by the support portion (S1), and the second mounting portion (M2) is supported from the rear by the support portion (S1).

[0107] According to the above configuration, the attachment work between the attachment unit (3) and the terminal unit (6) is simplified.

[0108] The terminal unit (6) according to a tenth aspect is the same as the terminal unit (6) of the ninth aspect, and further includes a restricting structure that restricts the terminal unit (6) from moving in a direction opposite to the one direction from the attachment position.

[0109] According to the above configuration, the possibility that the terminal unit (6) falls off from the mounting unit (3) can be reduced.

[0110] The configurations other than that of the ninth embodiment are not essential to the terminal unit (6) and may be omitted as appropriate. [Explanation of symbols]

[0111] 1 Intercom base station (information terminal) 3 Mounting unit 6 Terminal Unit 36 Movement Control Department 77 Cable (1st wiring) 90F front 100 Intercom System 340 Reverse Regulation Department 710 1st terminal 720 2nd terminal 900 Structures A1 First mounting part A2 Second mounting part M1 1st mounting part M2 2nd attachment part S1 support part S11 1st support part S12 2nd support part U1 Intercom Unit W2 Second wiring

Claims

1. An information terminal that operates as an intercom device; a mounting unit for mounting the information terminal on a wall; a terminal unit for relaying wiring that electrically connects the information terminal to an external device of the information terminal; Equipped with The mounting unit includes: A first mounting portion that can be mounted on the wall in a manner in which the mounting unit is disposed on a front side of a recessed box disposed in a hole formed in the wall; a second attachment portion to which the information terminal can be attached such that the information terminal is disposed on a front side of the attachment unit; a support portion capable of supporting the terminal unit, The support portion has a flange portion that is long in one direction intersecting with a front-rear direction that is a direction perpendicular to a wall surface of the wall, a hook protrusion provided on one end side of the flange portion in the longitudinal direction, and a reverse movement prevention portion that is a through hole provided on the other end side of the flange portion in the longitudinal direction and penetrating the flange portion in the front-rear direction, Each of the flange portion and the hook projection serves as a first support portion and a second support portion, The terminal unit comprises: a protruding piece that is inserted into a space between the flange portion and the hook protrusion; a restriction structure having a claw to be inserted into the through hole; Equipped with the terminal unit is moved in the one direction from a pre-installation position, which is a position when the protruding piece is inserted into the space, to an installation position where the claw is inserted into the through hole and the terminal unit is installed relative to the support part, When the terminal unit is in the mounting position, the first support portion supports the terminal unit from a front side, and the second support portion supports the terminal unit from a rear side, When the terminal unit is in the mounting position, the claw is inserted into the through hole, and the reverse movement prevention portion and the prevention structure prevent the terminal unit from moving from the mounting position to the pre-mounting position in a direction opposite to the one direction. Intercom unit.

2. The support portion further includes a movement restricting portion that restricts the terminal unit from moving from the mounting position along a direction perpendicular to both the one direction and the front-rear direction.

2. The intercom unit according to claim 1.

3. When the first mounting portion is attached to the wall, the support portion is located in a recess of the embedded box behind a front surface of the wall.

3. An intercom unit as claimed in claim 1 or 2.

4. The second mounting portion is located in front of a front surface of the wall when the first mounting portion is attached to the wall. An intercom unit according to any one of claims 1 to 3.

5. The first support portion and the second support portion are made of the same material. An intercom unit according to any one of claims 1 to 4.

6. The terminal unit comprises: a first terminal to which a first wiring electrically connected to the information terminal is electrically connected; a second terminal to which a second wiring electrically connected to the external device is electrically connected; A first mounting portion and a second mounting portion supported by the mounting unit, the first mounting portion includes the protrusion, the restriction structure, and a rib protruding from a position between the protrusion and the restriction structure, The second mounting portion includes one or a plurality of protruding members that face the rib in the front-rear direction, When the terminal unit is in the mounting position, the first mounting portion is supported from the front by the first support portion, and the second mounting portion is supported from the rear by the second support portion. An intercom unit according to any one of claims 1 to 5.

7. An intercom unit according to any one of claims 1 to 6, an intercom device separate from the intercom device, the intercom device communicating with the information terminal operating as the intercom device in the intercom unit; Intercom system.

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