JPH05176034A - Drip-proof lobby interphone - Google Patents

Abstract

PURPOSE:To provide a drip-proof lobby interphone which can discharge a waterdrop infiltrating into a internal part from the gap of a display window for display, which is formed in an internal box, to an external part without infiltrating it into a part where the electric parts of the internal box are housed. CONSTITUTION:In partition walls 31 and 32 which are formed in the internal box 3 and into which the respective parts are housed, a waterproof falling inclination guide surface 32a where the waterdrop drips toward a crossing part with the vertical parition wall 31 running in the vertical direction of the internal box from one end is formed in the lateral parition wall housing the electric parts such as a ten key formed at the lower part of the display window with the display part. A first waterproof discharge hole 33 is formed at the crossing part, and a second waterproof discharge hole 34 which discharges the waterproof dripping along the vertical parition wall 31 to the external part is formed at the trailing end of the vertical partition wall 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a lobby intercom installed at a common entrance of an apartment or the like so that a visitor can call a resident and make a call.

[0002]

2. Description of the Related Art Generally, a lobby intercom of this type is an internal unit box in which electric components such as a doorphone, a numeric keypad, and a control circuit board are built in a display panel which exposes an operation unit such as a display unit and a numeric keypad. The decorative panel block constructed by assembling the above is provided. An example of the internal box of the makeup panel block in this lobby intercom is shown in FIG. The inner box 3 shown in FIG. 9 is integrally molded by resin molding, and has a front panel on the back of a surface formed with openings for exposing a part of electric components such as a numeric keypad, a doorphone, a doorphone camera, and a display unit. A box body is formed by surrounding a surrounding wall 3a whose rear surface is opened so as to form a flange portion 3b which is a connecting portion between a mounting frame member (not shown) (not shown). Inside the surrounding wall 3a, there are a vertical partition wall 31 forming a central partition wall, and a horizontal partition wall 32 formed below the display window 20 for the display part made of acrylic glass, which accommodates electric parts such as a numeric keypad. It is provided.

In the above structure, when the lobby intercom is installed outdoors, water droplets may intrude into the interior through the gap of the display window 20 for the display section.
Then, the water droplets may penetrate the lateral partition wall 32 to the lower side, causing a short circuit of the electric circuit housed under the lateral partition wall 32 and corrosion of each electric component. Conventionally, as described above, in order to prevent rainwater from entering through the gap of the display window 20 for the display unit and intrusion of water droplets inside,
As shown in FIGS. 9 and 10, the caulking material 40 is applied from the inner side, that is, the back surface side, to the mounting peripheral edge portion of the display window 20 to close the gap generated in the mounting peripheral edge portion to prevent water droplets from entering the inside. Was there.

[0004]

However, as described above, it takes a lot of time to apply the caulking material 40 to the peripheral edge portion of the display window 20 and it takes time to assemble the lobby intercom, resulting in a high cost. was there. An object of the present invention is to solve the above conventional problems. That is, even if a water drop enters the interior through the gap of the display window for display, the water drop can be discharged to the outside without penetrating the part containing the electric parts such as the numeric keypad, and the water drop is placed inside. It is possible to prevent a short circuit of an electric circuit and corrosion of each electric component, which can simplify or omit the caulking process of the display window for the display unit and shorten the time required for assembly. You can
It is to provide a drip-proof lobby intercom that can reduce costs.

[0005]

DISCLOSURE OF THE INVENTION The lobby intercom of the present invention proposed to achieve these objects is a first aspect of the present invention, in which a display panel for exposing an operation unit such as a display unit and a ten-key pad is internally provided. In a lobby intercom equipped with a decorative panel block configured by assembling an internal unit box in which electric parts such as a doorphone, a numeric keypad, and a control circuit board are incorporated, a partition wall for accommodating each component formed in the internal unit box , A horizontal partition wall that accommodates electric parts such as a numeric keypad formed below the display window with the display unit, has water drops that drop from one end toward the intersection with the vertical partition wall that runs in the vertical direction of the internal unit box. In addition to forming a falling inclined guide surface, a first water drop discharge hole is formed at this intersection, and water drops falling along the vertical partition wall are formed at the end of the vertical partition wall. There is a structure formed of the second water droplets discharge hole for discharging the parts. A second aspect of the present invention has a structure in which the horizontal partition wall is provided with a water drop falling prevention surface that rises outward instead of the water drop falling inclined guide surface. Further, a third aspect of the invention has a structure in which the protruding end of the lateral partition wall is formed with a bulge portion that prevents the water droplet from falling, instead of the water droplet falling inclined guide surface. Incidentally, a water drop falling prevention surface which rises further outward may be formed on the lateral partition wall on which the water drop falling inclined guide surface is formed (Claim 4), and further a water drop falling inclined guide surface is formed. A bulging portion may be formed at the projecting end of the lateral partition wall to prevent the water drop from falling (claim 5).

[0006]

In the first aspect of the invention described above, even if water drops penetrate into the interior through the gap of the display window for the display unit, the water drops that have penetrated into the vertical partition wall through the first water drop discharge hole from the water drop drop guide surface. After being transmitted, the water is discharged to the outside from the second water droplet discharge hole formed at the end of the vertical partition wall. In the second invention,
Even if water drops penetrate inside through the gap of the display window for the display unit,
Since this water drop drop prevention surface is formed, it does not fall from the projecting end of the lateral partition wall into the accommodating portion accommodating the electrical component. Further, in the third invention, even if water droplets penetrate into the inside of the display window for the display unit, the invading water droplets are prevented from falling by the bulging portion formed at the projecting end of the lateral partition wall. Therefore, there is the same effect as above.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the same members as those in the conventional example are designated by the same reference numerals. FIG. 1 is a rear view of the internal unit box of the drip-proof lobby intercom of the first invention, FIG. 2 is a side sectional view of the internal unit box of the drip-proof lobby intercom of the first invention, and FIG. 3 is a drip-proof lobby. It is an exploded perspective view of an intercom.

In the first invention, as shown in FIG. 1, a partition wall 31 for accommodating the respective parts formed in the inner container box 3,
Of the 32, the horizontal partition wall 32 that accommodates electric parts such as a numeric keypad formed below the display window 20 for the display unit,
A water drop falling guide surface 32a that descends from one end toward the intersection with the vertical partition wall 31 that runs in the vertical direction of the internal unit box.
(See FIG. 2) are formed. As shown in FIG. 1, the water drop drop sloping guide surface 32a is inclined to the right downward from the vertical center portion of the left end wall of the surrounding wall 3a toward the vertical center portion of the vertical partition wall 32. .. And
A first water drop discharge hole 33 is formed at the intersection, and a second water drop discharge hole 34 is formed at the end of the vertical partition wall 31 for discharging the water drops that have fallen along the vertical partition wall 31 to the outside.
Are formed. Therefore, when water droplets such as rainwater infiltrate through the display window 20 for the display unit, the water droplets are guided to fall through the route shown by the arrow in FIG.

As shown in FIG. 3, this lobby intercom is composed of an embedded box 1, a mounting frame member 2, an internal unit box 3, and a front panel 4. Here, the embedding box 1 is a rectangular metal box, and is provided with a plurality of screw holes 1a for screwing the mounting frame member 2 on the peripheral edge of the front surface. The upper surface is formed with a plurality of wire insertion holes 1b having different hole diameters for inserting the signal wire and the power supply wire, which are wired in the wall, and the lower surface is provided with an opening 1c, through which water vapor in the box 1 is discharged. It is easy to do.

Further, the mounting frame member 2 is a rectangular metal frame frame 2b fitted to the flange portion 3b in the inner container box 3.
The metal horizontal frame 2a provided with the terminal block 2c at the rear side of the frame body is integrally assembled, and the terminal block 2c is provided with a signal line 8 such as a flat cable having a connector 8a at its tip. It is derived. A signal line (not shown) led out into the embedding box 1 from the entry hole 1b of the embedding box 1 is connected to the terminal block 2c. The upper and lower frame pieces of the metal frame 2b of the mounting frame member 2 and the left and right frame pieces are provided with the flange portion 3 of the inner unit box 3.
Engaging protrusions 2f that are fitted into and engaging with a plurality of engaging holes 3f provided on the b side are cut and raised by punching, and the flange portion 3b of the inner unit box 3 is formed on the lower frame piece. A receiving piece 2d for receiving a pair of cutouts 3c formed in the corner portion on the lower one side is bent and formed. In addition, 2e is a long hole provided for fixing to the embedding box 1 with a screw, and is perforated while being inclined for position adjustment.

On the other hand, as shown in FIG. 1, the flange portion 3b of the inner unit box 3 having the above-described structure is provided with notched portions 3c which are formed by notching the corner portions at the four corners thereof, and the upper, lower and left pieces. The right side pieces are formed with engagement holes 3f corresponding to the engagement projection pieces 2f of the mounting frame member 2 and hole portions 3g for screwing the front panel 4. A numeric keypad, a door phone, and other circuit boards are mounted in the surrounding wall 3a of the inner unit block 3, and the back plate 6 is covered on the back surface of the numeric keypad, the door phone, and the like. Opened 6
From a, a signal line (not shown) such as a flat cable having a connector at its tip is led out.

The front panel 4 has openings 4a to 4d corresponding to the display section, operation keys such as a numeric keypad, and reverse master key.
Is formed on the surface of the internal unit box 3 and fixed with screws (not shown), etc., the display section exposed from the surface of the internal unit box 3, the operation keys such as the numeric keypad, and the reverse master key are exposed. The decorative panel block 10 (see FIG. 3) is configured. As shown in FIGS. 1 and 2, the inner box 3 is integrally molded by resin molding, and has a surface formed with an opening for exposing a part of electric components such as a numeric keypad, a doorphone, a doorphone camera, and a display unit (see FIG. (See 3)
A box portion is provided on the back side of which a flange portion 3b serving as a connecting portion between the front panel 4 and the mounting frame member 2 is formed so as to surround an enclosure wall 3a whose rear surface is opened. A vertical partition wall 31 forming a central partition wall is provided in the interior thereof, and a plurality of boss portions 3h are formed for mounting electric components such as a numeric keypad, a doorphone, a doorphone camera, a display unit, and a circuit board. The electric parts and the circuit board can be easily attached by simply screwing them into the predetermined boss portion 3h, and the height of the boss portion 3h can be appropriately cut when adjusting the height of these parts. This can be easily done, so that it is possible to efficiently mount electric components and circuit boards at different heights. In addition, in such an internal unit box 3, in order to avoid the influence of ambient light when the doorphone camera is attached, the camera portion is easily attached to the portion 19 to which the camera portion of the doorphone camera is attached. A rib frame 3j is also formed around the periphery of the rib frame 3j so as not to generate a gap where external light penetrates when mounted. Further, a display window 20 for a display section is provided in the internal unit box 3. The display window 20 is fitted from the surface side into a cut step portion 38a (see FIGS. 5 to 8) formed on the peripheral edge of the opening portion 38 provided on the upper side of the lateral partition wall 32 in the inner box 3, It is fixed with adhesive.

On the other hand, on the inner surface of the surrounding wall 3a, tapered lateral ribs 3i for reinforcing the inner container box 3 and preventing the circuit board from falling are formed at appropriate intervals, and below the surrounding wall 3a, For convenience of mounting the card reader and the reverse master key, an opening 3k corresponding to the card insertion opening of the card reader, a boss portion 3m for directly screwing the card reader, and a reverse master key are mounted. A hole 3n is formed. In addition, 35, 36, and 37 are reinforcing ribs provided above and below inside the surrounding wall 3a.

Next, the operation of the first invention will be described. Even if a water droplet intrudes into the inside of the display window 20 for the display unit, the invading water droplet is directed in the water drop falling inclined guide surface 32a formed on the lateral partition wall 32 in the inclination direction as shown by an arrow in FIG. Flow from left to right in FIG. 1,
The first water drop discharge hole 3 provided at the intersection of the vertical partition walls 31.
After passing through the vertical partition wall 31 through 3, the water is discharged to the outside from the second water droplet discharge hole 34 formed at the end of the vertical partition wall 31.

As shown in FIG. 4, the water drop falling guide surface 32a of the horizontal partition wall 32 extends from the central portion in the vertical direction of the vertical partition wall 31 to a portion slightly below the central portion in the vertical direction of the left end wall of the surrounding wall 3a. It may be provided so as to be directed downward to the left.
In this case, a water drop discharge hole 39 is provided at the intersection of the left end wall of the surrounding wall 3a and the lateral partition wall 32. In the structure shown in FIG. 4, the water droplets that have penetrated into the interior through the gap of the display window 20 for the display section are, as indicated by arrows in FIG.
2. The water drop falling inclined guide surface 32a formed in 2 flows in the inclined direction (from the right side to the left side in FIG. 4), and the surrounding wall 3a
From the water drop discharge hole 39 provided at the intersection with the left end wall of
It flows out to the outside and is discharged along the left end wall of the surrounding wall 3a.

FIG. 5 is a longitudinal sectional view showing the main part of the second invention. In the second invention, the horizontal partition wall 32 is provided horizontally when viewed from the back surface, and instead of the water drop falling inclined guide surface 32a in the first invention, the water drop falling prevention that rises outward is prevented. The surface 32b is formed. According to such a structure, since the water drop drop prevention surface 32b is inclined, even if a water drop penetrates into the inside of the display window 20 for the display unit, the water drop drop prevention surface 32b will not come into contact with the tip end portion of the water drop drop prevention surface 32b. This water drop does not fall.

FIG. 6 is a vertical cross-sectional view showing the main part of the third invention. In the third aspect of the invention, the lateral partition wall 32 is provided horizontally when viewed from the back surface, and the projecting end thereof has the first partition described above.
In place of the water drop falling inclined guide surface 32a in the invention of
A bulged portion 32d is formed to prevent water droplets from falling. According to such a structure, since there is the bulging portion 32d formed at the projecting end of the lateral partition wall 32, the water droplets that have penetrated into the interior through the gap of the display window 20 for the display section will come from this projecting end. Is prevented from falling.

FIG. 7 shows the second feature of the first invention.
(Claim 4) wherein the horizontal partition wall 32 descends from one end toward the intersection with the vertical partition wall 31 running in the vertical direction of the inner unit box 3. A water drop falling guide surface 32a is formed, and a water drop falling prevention surface 32b that rises outward is formed. In FIG. 7, the display window 2 for the display unit is
Even if a water drop enters the inside of the gap of 0, the water drop is guided along the inclination of the water drop fall prevention surface 32b and does not drop from the tip of the water drop fall prevention surface 32b. The base end portion of a certain horizontal partition wall 32 flows in the tilt direction along the water drop falling inclined guide surface 32a, and the vertical partition wall 31 is passed through the first water drop discharge hole 33 provided at the intersection of the vertical partition walls 31. After being transmitted, it is discharged to the outside through the second water droplet discharge hole 34 formed at the end of the vertical partition wall 31.

FIG. 8 shows the third feature of the first invention.
A combination of the features of the invention of claim 5 (claim 5), wherein the horizontal partition wall 32 drops from one end toward the intersection with the vertical partition wall 31 running in the vertical direction of the inner unit box 3. A falling inclined guide surface 32a is formed, and a protruding portion 32d for preventing water droplets from falling is formed at the projecting end of the lateral partition wall 32. In the structure shown in FIG. 8, even if a water drop enters the inside of the display window 20 for the display unit, the water drop
Since the bulging portion 32d is formed at the projecting end of the lateral partition wall 32, the bulging portion 32d is prevented from falling from the projecting end, and the base end portion 32c of the lateral partition wall 32 and the bulging portion are prevented by the action of a so-called gutter. 32d flows by the action of a so-called gutter in the inclination direction along the water drop falling inclined guide surface 32a, and the vertical partition wall 31 is passed through the first water droplet discharge hole 33 provided at the intersection of the vertical partition walls 31. After being transmitted, it is discharged to the outside through the second water droplet discharge hole 34 formed at the end of the vertical partition wall 31.

[0020]

According to the drip-proof lobby intercom of the present invention, the first invention described in claim 1, the second invention described in claim 2, the third invention described in claim 3 and According to any one of the inventions described in claim 4 and claim 5, even if a water droplet penetrates through the gap of the display window for display, the water droplet penetrates into a portion containing electric parts such as a numeric keypad. Because it can be discharged to the outside without
It is possible to prevent a short circuit of an electric circuit arranged inside and corrosion of each electric component, and there is a drip-proof effect. Therefore,
The caulking process of the display window for the display unit can be simplified or omitted, the time required for assembly can be shortened, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a rear view of an internal unit box in a drip-proof lobby intercom of the first invention.

FIG. 2 is a side sectional view of an internal unit box in the drip-proof lobby intercom of the first invention.

FIG. 3 is an exploded perspective view of a drip-proof lobby intercom.

FIG. 4 is a back view of an internal unit box in a drip-proof lobby intercom showing another example of the first invention.

FIG. 5 is a vertical cross-sectional view showing the main parts of the drip-proof lobby intercom of the second invention.

FIG. 6 is a vertical cross-sectional view showing a main part of a drip-proof lobby intercom of a third invention.

FIG. 7 is a vertical cross-sectional view showing the main parts of the drip-proof lobby intercom according to claim 4.

FIG. 8 is a vertical cross-sectional view showing a main part of the drip-proof lobby intercom according to claim 5;

FIG. 9 is a back view of an internal unit box in a conventional drip-proof lobby intercom.

10 is a vertical cross-sectional view showing a state in which the display window for the display unit of the internal unit box in the conventional drip-proof lobby intercom shown in FIG. 9 is caulked.

[Explanation of symbols]

 3 Internal unit box 31 Vertical partition wall 32 Horizontal partition wall 32a Water drop falling inclined guide surface 32b Water drop fall prevention surface 32d Swelling portion 33 First water drop discharge hole 34 Second water drop discharge hole 4 Front panel 10 Decorative panel block 20 Display Display window for department

Claims (5)

[Claims] 1. A decorative panel block constructed by assembling an internal unit box having electrical components such as a doorphone, a numeric keypad, and a control circuit board inside a display panel that exposes a display unit and an operation unit such as a numeric keypad. In the lobby intercom provided, among the partition walls for accommodating each component formed in the internal unit box, a horizontal partition wall for accommodating electric components such as a numeric keypad formed below the display window with the display unit has one end In addition to forming a water drop falling inclined guide surface that descends toward the intersection with the vertical partition wall that runs in the vertical direction of the internal unit box, a first water drop discharge hole is formed at this intersection, and the vertical partition is further formed. A drip-proof lobby intercom having a structure in which a second water drop discharge hole is formed at the end of the wall to discharge the water drop that has fallen along this vertical partition wall to the outside. 2. A drip-proof lobby having a structure in which the horizontal partition wall is formed with a water drop falling prevention surface that rises outward instead of the water drop falling inclined guide surface. intercom. 3. A drip-proof lobby in which a protruding portion of the lateral partition wall according to claim 1 is formed with a bulge portion for preventing the water drop from falling, instead of the water drop falling guide surface. intercom. 4. The drip-proof lobby intercom according to claim 1, wherein the horizontal partition wall is provided with a water drop drop preventing surface that further rises outward. 5. The drip-proof lobby intercom according to claim 1, wherein a protruding portion of the lateral partition wall is formed with a bulge portion for preventing the water drop from falling.