JP2821821B2 - Lobby intercom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lobby intercom which is installed at a common entrance of an apartment or the like and has a function of allowing a visitor to call a resident and make a call.

[0002]

2. Description of the Related Art As shown in FIG. 6, a conventional lobby intercom which is embedded and installed at the entrance of a condominium has a built-in box 21, a numeric keypad, a display unit, and electric parts such as a door phone handset. An inner box 22 and a front panel 23 are provided, and the embedding box 21 is attached to a hole (not shown) formed in a wall surface, and the inner box 22 is fixed to the embedding box 21 with screws 25 . Finally, the cosmetic screw 24 is inserted through the screw insertion hole 231 of the front panel 23.
The front panel 23 is fixed to the wall by screwing into the inner box 22 . However, since the lobby intercom having such a conventional structure is formed by processing a metal sheet or the like, especially when a door phone, a numeric keypad, a circuit board, and the like are mounted inside the inner unit box 22, As shown in FIG. 7, a screw 5 is attached to a mounting plate 50 formed in a specific shape by providing a step portion in advance.
It was necessary to attach using auxiliary parts, such as 2a and mounting bracket 52.

[0003]

Proposal in view of the above article information [0008]
The present invention is aimed at reducing the weight of the inner box and
In addition, the number of parts such as screws and mounting brackets, which had mounting plates such as door phones, numeric keys, and circuit boards inside, were reduced.
Then , the purpose is to reduce the manufacturing cost and facilitate the installation work. In addition, unnecessary external light that has entered through the gap in the inner box is prevented by a simple method,
At the same time, it aims to sharpen the images from the Ahon Camera .

[0004]

According to the present invention, there is provided an embedded lobby intercom proposed to achieve the above object. An embedded box attached to a hole formed in a wall surface, a mounting frame member, A lobby intercom having a panel block, wherein the decorative panel block includes a front panel, a display unit, a door phone camera, a numeric keypad operation unit,
An inner box in which electric components such as a control circuit board are built-in. The inner box is formed in a box body having a surrounding wall by resin molding, and an electric box including a light-shielding chamber is formed by a partition wall. A space for mounting components is formed, a door phone camera is housed in the light-shielding room, and the decorative panel block is configured to be mounted on the embedding box by a mounting frame member.

[0005]

According to the lobby intercom of the present invention, since the inner unit box is preliminarily formed with a surrounding wall and a partition wall, a mounting space for electric parts such as a display unit, a door phone, and a ten-key operation unit is defined. Electrical components such as a door phone, a numeric keypad operation unit, and a display unit can be easily attached. In addition, when installing the door phone camera, since light shielding walls are formed by partition walls on both sides of the door phone camera, external light entering from the display unit and other parts also use any parts. It is possible to effectively cut off without clearing, so that clear images can be obtained.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side cross-sectional view showing an inner box forming a main part of a lobby intercom according to the present invention, and FIG. 2 is a rear view of the inner box. As shown in these figures, the inner box 3 is integrally formed by resin molding, and constitutes a box body having a surrounding wall 3a having a back surface opened on the front and back surfaces. The inner unit box 3 has a flange portion 3b serving as a connecting portion between the front panel 4 and a mounting frame member 2 described later, and has a password on its surface for calling each dwelling unit and operating an electric lock. Openings 21 and 19 for exposing a part of electric parts (not shown) such as a numeric keypad for inputting a password, a door phone or a door phone camera for making a call, and a display unit for displaying information at the time of operation. 20 are formed. In the space surrounded by the surrounding wall 3a of the inner box 3, a partition wall 31 running up and down in the center is provided, and a plurality of rib frames 3j are provided so as to protrude, so that an operating unit such as a display unit or a numeric keypad is provided. , Mounting spaces (a) to (c) for mounting electric components such as a door phone, a door phone camera, and a control circuit board, and these mounting spaces (a) to (c) have a plurality of mounting spaces. Are arranged at predetermined positions corresponding to the electric components to be mounted, so that these electric components can be easily mounted simply by screwing them into the predetermined boss portions 3h with screws. Since these bosses 3h are integrally formed with the inner box 3 by resin molding, they can be cut to any length. For this reason, the height at which the electric component is mounted can be easily adjusted by appropriately cutting the length of the boss 3h, and the height of the electric component can be increased without using a conventional mounting plate having a stepped portion. It can be easily installed differently. In addition, in order to avoid the influence of disturbance light when the door phone camera is mounted, such an inner unit box 3 facilitates the mounting of the camera unit at the portion 19 where the camera unit of the door phone camera is mounted, and When the camera is mounted, the surrounding wall 3a and the partition wall 31 form a light-shielding wall c that surrounds the door phone camera from both sides without any gap so that external light from the surroundings does not enter. Note that reference numeral 20 denotes a display window for the display unit.

FIG. 3 is an exploded perspective view of a lobby intercom according to the present invention. The lobby intercom A is composed of an embedding box 1, a mounting frame member 2, an inner unit box 3, and a front panel 4, as seen in FIG. Here, the embedding box 1 is a rectangular metal box and has a mounting frame member 2
Are formed with a plurality of screw holes 1a.
On the upper surface, there are formed a plurality of input holes 1b having different hole diameters through which a signal line and a power supply line wired in the wall are inserted. On the lower surface, an opening 1c is formed to allow rainwater or the like to enter the box 1. Is easy to discharge. The mounting frame member 2 is
Holding frame 2b provided with terminal block 2c behind rectangular metal frame 2a fitted to flange 3b of inner box 3
And a signal line such as a flat cable provided with a connector at the tip is led out to the terminal block 2c, and the input hole 1b of the embedding box 1 is formed.
The input signal lines are connected (in each case, the signal lines are not shown). The upper and lower frame pieces and the left and right frame pieces of the mounting frame member 2 are provided with locking pieces 2f which are fitted and engaged with a plurality of locking holes 3f formed on the flange portion 3b side of the inner box 3. The lower frame piece is formed by cutting and raising, and the lower frame piece has a set of receiving pieces for receiving a set of cutouts 3c formed in the lower corner of the flange 3b of the inner box 3. 2d is bent. The attachment frame member 2 is detachably attached to both the inner box 3 and the embedding box 1 in order to attach the inner box 3 to the embedding box 1. Before attaching to the inner box 3, a screw is inserted into the long hole 2 e to be fixed to the embedding box 1.

A hole 3g is formed at an appropriate position of the flange portion 3b of the inner box 3, and a screw is screwed into the hole 3g to be screwed to the front panel 4 of the inner box 3. Further, in the surrounding wall 3a of the inner box 3, electric components such as a numeric keypad, a door phone, a door phone camera, and a control circuit board are mounted in the above-described mounting space, and a back plate 6 is put on the back surface thereof. From an opening 6a formed in a part of the back plate 6, a signal line (not shown) such as a flat cable provided with a connector at the tip is led out. Table panel 4
Openings 4a to 4 corresponding to the display unit, operation keys such as numeric keys, a reverse master key, and a card insertion slot of a card reader.
c is formed, the corner frame member 41 is attached, and is superposed on the surface of the inner box 3 and fixed with screws or the like.
From the surface of the front panel 4, a numeric keypad, a reverse master key, and a decorative panel block 10 whose display unit is exposed are configured.

As shown in FIG. 4, the surrounding wall 3a of the inner box 3 protrudes rearward from the flange portion 3b, and the upper surface and the outer surface of the inner wall 3a have an inclined surface 30 having a lower opening end. Has formed. Therefore, even when water droplets such as rainwater enter, the water droplets fall down along the path indicated by the arrow in FIG. 5, so that the water droplets enter the inner box 3 and corrode the circuit boards and electronic components. It is not. In addition, tapered vertical ribs 3i for reinforcing the inner box 3 and preventing the circuit board from dropping are formed at appropriate intervals on the inner surface of the surrounding wall 3a, and a card reader or the like is provided below the surrounding wall 3a. In order to facilitate the installation of the inverted master key, an opening 3 corresponding to the card insertion slot of the card reader is provided.
k and boss 3 for screwing the card reader directly
m, a hole 3n for attaching an inverted master key is formed.

[0010]

According to the lobby intercom of the present invention,
In the space surrounded by the enclosure of the inner box, the partition wall defines the installation space for electrical components such as the display unit, the door phone, and the numeric keypad operation unit. Electric parts can be arranged and attached according to the type. Therefore, when the electric component is mounted, the electric component can be efficiently mounted by an easy and accurate method without erroneous mounting position or misalignment. In addition, in the mounting space for the doorphone camera, a light-shielding wall is formed by the partition wall of the inner box and the surrounding wall so as to enclose the doorphone camera from both sides without any gap, so that there is no need to use any light-shielding parts or devices. However, the door phone camera can be easily attached in a state where no external light enters.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional structural view of a decorative panel block of a lobby intercom of the present invention.

FIG. 2 is a view showing the inside of the back of the inner box.

FIG. 3 is an exploded perspective view of the lobby intercom of the present invention.

FIG. 4 is a perspective view showing the surrounding wall of the inner box viewed from the back.

FIG. 5 is a longitudinal sectional structural view of a main part showing an inclined surface of a surrounding wall of the inner box.

FIG. 6 is a perspective view of a conventional lobby intercom.

FIG. 7 is a view showing the inside of the back surface of the inner box of a conventional lobby intercom.

[Explanation of symbols]

 A: Lobby intercom 1: Embedded box 2: Mounting frame member 3: Inner box 3a: Enclosure wall 3b: Flange part 31: Partition wall 3h: Boss part 3j: Rib frame (A) to (C): Mounting space (C) ) ... Shade room 4 ... Front panel 10 ... Vacuum panel block

Continuation of the front page (72) Kaichi Tatsumi, Inventor 1048, Oaza Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Works, Ltd. (56) References JP-A-4-355545 (JP, A) JP-A 4-355546 (JP) , A) Full opening 58-183013 (JP, U) Real opening 61-111249 (JP, U) Real opening 64-31483 (JP, U)

Claims (1)

(57) [Claims] 1. A lobby intercom having an embedding box (1) attached to a hole formed in a wall surface, an attachment frame member (2), and a decorative panel block (10), comprising: a decorative panel block (10). 10) includes an inner box (3) in which electric parts such as a display unit, a door phone camera, a numeric keypad operating unit, and a control circuit board are incorporated, and a front panel (4). ) Are formed in a box body surrounding the surrounding wall (3a) by resin molding, and the partition wall (3) is formed.
1) forms a mounting space (a, b, c) for electrical components including a light-shielding room (c), a door phone camera is housed in the light-shielding room (c), and a decorative panel block (10) is mounted. Lobby intercom attached to the embedding box (1) by the frame member (2).