JPH0918562A - Lobby interphone - Google Patents

Abstract

PURPOSE: To provide a lobby interphone which is freely variable in the lateral width of its top panel, good-looking and superiorly designable while having no fitting screw exposed on the top surface of the top panel, and only varied in the length of the top panel for length variation, and to make lateral frame walls, arranged at the side end parts of the top panel, common, eliminates the need to replace the lateral frame walls, and lower the cost. CONSTITUTION: A couple of lateral frame walls 7 and 7 can be fitted to both the side ends of the top panel 6 from the rear side of the top panel 6, fitting bolts 8 are fixed on the rear surface side at both the side ends of the top panel 6, and the couple of lateral frame walls 7 and 7 are provided with connecting projection pieces 7c having openings 7a into which the fitting bolts 8 are inserted. The fitting bolts 8 on the rear surface side of the top panel 6 are inserted into the openings of the connection projection pieces 7c of the lateral frame walls 7 and 7 and clamped with nuts to attach the couple of lateral frame walls 7 and 7 detachably from the rear surface side of the top panel 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention covers a front panel provided with operation keys such as a call button and a display unit on an inner box mounted in a recess formed in the wall, and only the front panel from the wall is covered. About the lobby intercom installed on the wall as exposed.

[0002]

2. Description of the Related Art Generally, in a lobby intercom of this type, as shown in FIGS. 12 to 14, an outer frame c is attached and fixed to the outer periphery of a front panel b which is covered with an inner unit a. Then, in this type of lobby intercom, as shown in FIG. 15, a front panel b to which the internal box h is attached.
A plurality of mounting screws d are screwed into the screw holes g1 of the fixed embedding box g embedded in the recess provided in the wall surface e to attach the surface panel b to the embedding box g and fix it. I was trying to do it.

Further, in another type of lobby intercom, when the lobby intercom is attached to the embedding box, as shown in FIG. 16, an embedding box g fixed and embedded in a recess f provided in a wall surface e. The engaging hook j projecting obliquely upward at the upper end of the mounting plate i fixedly attached to the front surface of the mounting plate is inserted into the locking hole k formed at the upper end of the inner container box h, and the lower end of the mounting plate i is inserted. A mounting panel r horizontally formed on the inner part of the inner unit box h, and a bending protrusion m horizontally formed on the lower end of the inner unit box h are fitted with a mounting screw n to cover the inner unit box h. The internal unit box h is attached to the embedding box g by inserting a screwdriver (not shown) from the attachment screw operation opening q formed in p and screwing and tightening the attachment screw n.

[0004]

However, in the former lobby intercom, the front panel b is custom-made.
When changing the length, the frame c and the front panel b must be created according to the specified length.
Since and must be replaced at the same time, there is a problem that the cost required for this is high and the replacement work is troublesome.

Further, the front panel b is attached with a mounting screw d from the front side.
Since it was attached to the embedded box g by the above, there was a problem that the head of the attachment screw d was exposed on the surface of the front panel b, and the appearance was not good and the design was bad. Further, in the latter lobby intercom, since the fixing mounting screw n is visible from the outside through the mounting screw operating opening p, the mounting screw n is removed and the lobby intercom is removed and stolen. There was a problem that it could be mischievous such as giving damage.

The present invention has been made in view of the above conventional problems. A first object of the present invention is that the width of the front panel can be freely changed and screwed from the back surface. , The surface is not exposed by screws and the appearance is good, and the design is excellent. Furthermore, when changing the length, you only need to change the length of the front panel. It is possible to make the horizontal frame wall arranged at the side end common, and it is not necessary to replace the horizontal frame wall,
It is to provide a lobby intercom that can reduce costs.

A second object is to make the mounting screw invisible to the outside, so that the mounting screw can be prevented from being removed and operated, and the front panel or internal unit can be removed and stolen. It is to provide a lobby intercom that is not likely to be mischievous.

[0008]

The present invention has been proposed to achieve the above object, and the lobby intercom according to claim 1 is an internal unit mounted in a recess formed in a wall surface. In the lobby intercom installed on the wall so that only the front panel is exposed from the wall surface by covering the front panel provided with operation keys such as a call button and the display section,
The structure is such that a pair of horizontal frame walls can be attached to both sides of the front panel from the back side of the front panel.

According to another aspect of the lobby intercom of the present invention, mounting bolts are fixed to the back surface of the front panel in the vicinity of both side ends of the front panel, and connecting projections having openings for inserting the mounting bolts are provided on the pair of horizontal frame walls. A structure is provided in which the pair of horizontal frame walls are detachably attached from the back surface side of the front panel by inserting the mounting bolts on the back surface side of the front panel into the openings of the connecting projecting pieces of the horizontal frame wall. There is.

According to another aspect of the lobby intercom of the present invention, the horizontal frame wall has a surface formed into an arcuate corner curved surface, and when mounted on the wall, the depth dimension is such that the bottom end of the horizontal frame wall closely contacts the wall surface. It has a structure having. The lobby intercom according to claim 4 is the lobby intercom according to any one of claims 1 to 3, wherein upper and lower lid frames are attached to the front panel so that a gap is not formed between the front panel and the wall surface. .

According to another aspect of the present invention, the lobby intercom has a structure in which an attachment screw operating opening formed in a lower lid frame of a front panel having a fixing screw inside is closed by a removable blind plate. .

[0012]

According to the lobby intercom of the first aspect, a pair of horizontal frame walls can be attached to both ends of the front panel from the back side of the front panel. Therefore, when changing the horizontal width of the front panel. In addition, it is only necessary to remove the pair of horizontal frame walls from the front panel and attach them to the modified front panel, the horizontal width of the front panel can be freely set, and the front panel can be easily changed.

At this time, since the pair of horizontal frame walls can be used as they are, the cost for changing can be reduced. According to the lobby intercom of claim 2, by inserting the mounting bolt on the back surface side of the front panel into the opening of the connecting protruding piece provided on the horizontal frame wall, the pair of horizontal frame walls is formed from the back surface side of the front panel. Since it can be detachably mounted, the mounting bolt is not exposed on the surface of the front panel, the appearance is good, and the lobby intercom having an excellent design can be provided.

Further, since the pair of horizontal frame walls can be detachably attached to the front panel, the front panel can be easily replaced and changed. At this time, since the pair of horizontal frame walls can be used as they are, the change can be made. This cost can be reduced. According to the lobby intercom of claim 3, since the surface of the horizontal frame wall is formed into an arc-shaped corner curved surface,
The appearance is good and the design is excellent.

Furthermore, since the bottom end of the lateral frame wall is in close contact with the wall surface when it is mounted on the wall, it is possible to prevent moisture such as rainwater from entering the interior, and the internal equipment is protected. It is possible to protect the internal equipment without being affected by moisture. According to the lobby intercom of claim 4, since the upper and lower lid frames are attached to the front panel so that no gap is formed between the front panel and the wall surface, moisture such as rainwater can enter the front panel. The internal equipment can be protected.

Further, since no void is formed between the front panel and the wall surface, the appearance is good. According to the lobby intercom of claim 5, the mounting screw operation opening formed on the lower lid frame of the front panel is closed by the removable blind plate, so that the mounting screw cannot be seen from the outside. As a result, there is no risk that the mounting screws will be removed, and the internal equipment will not be stolen or misled.

[0017]

Embodiments of the lobby intercom according to the present invention will be described below with reference to the drawings. 1 shows a front view of a lobby intercom as one embodiment, FIG. 2 shows a side view of the lobby intercom, and FIG. 3 shows a partial cross section of a lobby intercom with an internal unit attached to a recess in a wall surface. FIG. 4 is an exploded perspective view showing the main part of the lobby intercom, and FIG. 5 shows a cross-sectional view of the lobby intercom with the horizontal frame wall attached to the front panel. ing.

The lobby intercom 1 of this embodiment is shown in FIG.
As shown in FIG. 5, the call button 3 and the numeric keypad 4 are attached to the inner box 2 mounted in the recess f formed in the wall surface e.
The front panel 6 provided with the operation keys such as the above and the display unit 5 is covered so that only the front panel 6 is exposed from the wall e.
The pair of horizontal frame walls 7, 7 can be attached to both side ends of the front panel 6 from the back surface 6a side of the front panel 6.

As shown in FIGS. 4 and 5, the mounting structure of the front panel 6 and the pair of horizontal frame walls 7 and 7 is such that a mounting bolt 8 is welded to the rear surface 6a side of the front panel 6 near both side ends. The pair of horizontal frame walls 7, 7 are provided with a connecting projection piece 7c having an opening 7b into which the mounting bolt 8 is inserted, and the horizontal frame walls 7, 7 are provided with a connecting projection piece 7c. The mounting bolt 8 on the rear surface 6a side of the front panel 6 is inserted, the nut 9 is screwed and the nut 9 is tightened, and thus the pair of horizontal frame walls 7, 7 is detachably mounted from the rear surface 6a side of the front panel 6. ing. In the figure, 9b indicates a washer.

The connecting projecting piece 7c is integrally extended by a predetermined size downward from the ends of the horizontal frame walls 7, 7 and has a reverse L-shaped cross section that projects horizontally toward the front panel 6 side at the lower end. Has been formed. Furthermore, as shown in FIGS. 3 to 5, the horizontal frame walls 7 and 7 are formed on the corner curved surface 7a having an arc shape, and the wall surface e
When it is attached to the horizontal frame walls 7, the bottom end 7d of the horizontal frame walls 7 and 7 has a depth dimension such that they are in close contact with the wall surface.

The front panel 6 has upper and lower lid frames 10, 1
1 is attached so that no gap is formed between the wall surface e and the wall surface e. In addition, this lobby intercom 1
It is adapted to be attached to the embedded box by the same attachment mechanism as that of the lobby intercom 20 described later. In FIGS. 3 and 4, reference numeral 6a denotes a screw operation opening formed in the lower lid frame 11 (see FIG. 9). (Corresponding to the screw operation opening 23a) shown in FIG.
Are closed by the blindfold plate (a member corresponding to the blindfold plate 24 shown in FIG. 9). Also, FIG.
In the figure, reference numeral 12 is a speaker for communication, and the members shown by broken lines in FIG. 2 are circuit members of the lobby intercom 1 housed in the internal unit box 2.

In the lobby intercom 1 of the present embodiment, the front panel 6 shown in FIG. 1 may be replaced by a front panel 6A having a large lateral width and the like.
The front panel 6A shown in FIG. 6 has a card reader 13 on the side of the operation keys such as the call button 3 and the numeric keypad 4 and the display unit 5.
As shown in FIG. 6, four mounting bolts 8 are provided on the rear surface side of both side ends of the front panel 6A.
Are fixed by welding.

The horizontal frame walls 7 and 7 shown in FIGS. 7 and 8 are the same as those attached to both side ends of the front panel 6, and will be described later on both side edges of the front panel 6A shown in FIG. ,
It is attached in the same manner as above. As described above, even if the widths of the front panel 6 and 6A are different, it is only necessary to replace the front panel 6 and 6A, and the same horizontal frame walls 7 and 7 can be used. Therefore, the cost can be reduced. it can.

Even if the horizontal frame walls 7 and 7 are made of metal,
It may be made of resin. The lobby intercom 20 shown in FIG. 9 has a structure different from that of the above-mentioned lobby intercom 1. This lobby intercom 1A has a lower lid frame 2 in a front panel 22 having fixing screws 21 inside.
The attachment screw operating opening 23a formed in FIG. 3 is closed by a removable blind plate 24.

FIG. 10 is a sectional view showing a state in which the portion indicated by A in FIG. 9 is enlarged and the blindfold plate 24 is sealed in the mounting screw operation opening 23a, and FIG. 11 is a bottom view of FIG. It is a figure which shows the state which looked. The blind plate 24 has the same shape as the attachment screw operation opening 23a, and the recessed groove portion 24 fitted into the attachment screw operation opening 23a.
a and the groove 24 provided before and after the groove 24a.
Collar-shaped portions 24b and 23c having an outer diameter larger than the outer diameter of a are formed, and a concave hole 24d for prying with a flat-blade screwdriver or the like is formed at the base end portion of the planar shape.

The same parts as those of the lobby intercom 1 are designated by the same reference numerals and the description thereof will be omitted.

By fitting the blind plate 24 into the mounting screw operation opening 23a of the front panel 22 mounted on the wall surface e, the fixing screw 21 in the front panel 22 cannot be seen from the outside. The fixing screw 21 is not removed, and the internal equipment is not stolen or damaged. Further, when performing maintenance or the like, by inserting a tip of a flat-blade screwdriver or the like into the recessed hole 24d of the blindfold plate 24 and prying it open, the blindfold plate 24 can be removed from the mounting screw operation opening 23a of the front panel 22. Therefore, maintenance etc. can be easily performed.

[0028]

As described above, in the lobby intercom according to claim 1, since the pair of horizontal frame walls can be attached to the both sides of the front panel from the back side of the front panel, When changing the width dimension, you can simply remove the pair of horizontal frame walls from the front panel and attach it to the changed front panel, you can freely set the horizontal width of the front panel, making it easy to change the front panel. it can.

At this time, since the pair of horizontal frame walls can be used as they are, it is possible to reduce the cost required for the change. In the lobby intercom according to claim 1, the pair of horizontal frame walls can be attached and detached from the rear surface side of the front panel by inserting the mounting bolts on the rear surface side of the front panel into the openings of the connecting projecting pieces provided on the horizontal frame wall. Can be installed on,
Mounting bolts are not exposed on the surface of the front panel,
It is possible to provide a lobby intercom that has a good appearance and is excellent in design.

According to the lobby intercom of claim 2,
By inserting the mounting bolts on the back side of the front panel into the openings of the connecting protrusions provided on the horizontal frame walls, a pair of horizontal frame walls can be detachably attached from the back side of the front panel. Since the mounting bolts are not exposed on the surface of the panel and the appearance is good, it is possible to provide a lobby intercom having an excellent design.

Further, since the pair of horizontal frame walls can be detachably attached to the front panel, the front panel can be easily replaced and changed. At this time, since the pair of horizontal frame walls can be used as they are, the change can be made. This cost can be reduced. In the lobby intercom according to claim 3, since the surface of the horizontal frame wall is formed into an arc-shaped corner curved surface, the appearance is good and the design is excellent.

Furthermore, since the bottom end of the horizontal frame wall is in close contact with the wall surface when it is mounted on the wall, it is possible to prevent moisture such as rainwater from entering the interior, and the internal equipment can be protected. It is possible to protect the internal equipment without being affected by moisture. In the lobby intercom according to claim 4, since the upper and lower lid frames are attached to the front panel so that no gap is formed between the front panel and the wall surface, moisture such as rainwater can enter the front panel and further Equipment can be protected.

Further, since no void is formed between the front panel and the wall surface, the appearance is good. In the lobby intercom according to claim 5, since the mounting screw operation opening formed on the lower lid frame of the front panel is closed by the removable blind plate, the mounting screw can be hidden from the outside. This makes it possible to prevent the installation screw from being removed and prevent the internal device from being stolen or mischievous.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a lobby intercom according to the present invention.

FIG. 2 is a side view of the lobby intercom of the embodiment.

FIG. 3 is a sectional bottom view showing a state in which the lobby intercom of the embodiment is attached to a wall surface.

FIG. 4 is an exploded perspective view showing a main part of the embodiment.

FIG. 5 is a partial cross-sectional view of a main part showing a state where the front panel and the horizontal frame wall of the lobby intercom of the embodiment are attached.

FIG. 6 is a diagram showing an example of a front panel that is reattached to the lobby intercom of the embodiment, (a) is a front view,
(B) is a side view.

FIG. 7 is a plan view of a horizontal frame wall of the lobby intercom of the embodiment.

8 is a bottom view of the horizontal frame wall of FIG. 7. FIG.

FIG. 9 is a partially exploded perspective view of a lobby intercom according to another embodiment.

10 is a vertical cross-sectional view of a main part when the lobby intercom shown in FIG. 9 is attached to a wall surface.

FIG. 11 is a bottom view of a main part when the lobby intercom shown in FIG. 9 is attached to a wall surface.

FIG. 12 is a front view of a conventional lobby intercom.

FIG. 13 is a side view of a conventional lobby intercom.

FIG. 14 is a bottom view of a conventional lobby intercom.

FIG. 15 is a perspective view schematically showing a mounting structure for mounting a conventional lobby intercom on a wall surface.

FIG. 16 is a vertical cross-sectional view when another lobby intercom according to the related art is attached to a wall surface.

[Explanation of symbols]

 e Wall surface f Recess 1 Lobby intercom 2 Internal box 3 Call button 5 Display 6 Front panel 7 Horizontal frame wall 7a Corner curved surface 7b Opening 7c Connecting protruding piece 7d Bottom edge 8 Mounting bolt 10 Upper lid frame 11 Lower lid frame 21 For fixing Screw 22 Front panel 23 Lower lid frame 23a Mounting screw operation opening 24 Blind plate

Claims (5)

[Claims] 1. A front panel provided with an operation key such as a call button and a display unit is attached to an internal unit mounted in a recess formed in the wall so that only the front panel is exposed from the wall. The lobby intercom to be installed has a structure in which a pair of horizontal frame walls can be attached to both sides of the front panel from the back side of the front panel. 2. A mounting bolt is fixed to a rear surface of the front panel near both side ends of the front panel, and a pair of horizontal frame walls is provided with a connecting projecting piece having an opening into which the mounting bolt is inserted. The mounting bolts on the rear surface side of the front panel are inserted into the openings of the connecting protruding pieces of and the nuts are fastened so that the pair of horizontal frame walls can be detachably mounted from the rear surface side of the front panel. The lobby intercom according to claim 1. 3. A structure in which the surface of the horizontal frame wall is formed into an arcuate corner curved surface, and has a depth dimension such that the bottom end of the horizontal frame wall comes into close contact with the wall surface when attached to the wall. The lobby intercom according to item 1 or 2. 4. The lobby intercom according to any one of claims 1 to 3, wherein upper and lower lid frames are attached to the front panel so that a space is not formed between the front panel and the wall. 5. A lobby intercom having a structure in which a removable blindfold plate closes an opening for operating a mounting screw formed in a lower lid frame of a front panel having a fixing screw inside.