JP2001069216A - Interphone device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an interphone device which has a housing space for a dedicated driver for a dedicated screw and disconnects the power supply of the device when the dedicated driver is used. SOLUTION: This interphone device consists of an entrance slave unit 2 whose housing 21 is fixed to a mounting board 22 by using a dedicated screw 1 and an indoor master unit 3 on which a power supply switch 31b turning on/off the supply of a power supply connected to the unit 2 is mounted, and uses a dedicated driver 4 to screw into or off the dedicated screw. In such a case, the unit 3 includes a sub-power supply switch 31a that is connected to the switch 31b and turns on/off the supply of the power supply when the dedicated screw is used, and is provided with an open part 33a for operating the sub-power supply switch and a sliding cover 34 covering the open part, and a driver fixture 35 inside the sliding cover to house the dedicated driver in the unit 3 while the dedicated driver has a projecting part 42 projecting from a long shaft part 41 and turning on/off the sub-power supply switch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom apparatus, and more particularly, to a housing of a door-to-door unit and a mounting base, which are fixed by a special screw, and an indoor base unit for supplying power to the indoor-parent unit and the door-to-door unit. The present invention relates to an intercom apparatus provided with a power switch for turning on and off.

[0002]

2. Description of the Related Art As shown in FIG. 4, an entrance cordless handset 20 is equipped with a microphone, a speaker (not shown), an expensive mechanical device such as a camera 5 for imaging a visitor, a tilt or pan / tilt device 6, and the like. The conventional intercom device of this type has a housing 21 and a mounting base using a special dedicated screw 1 in order to prevent a person other than the owner from easily attaching and detaching the housing 21 and the mounting base 22. 22 is fixed.

[0003] A special dedicated screwdriver 4 must be used for attaching and detaching such a dedicated screw 1. The dedicated driver 4 is shipped enclosed as an accessory part in an individual carton for storing the product. As shown in FIG. 5, power is supplied to the indoor main unit 30 from the AC 100 V power supply 7 and to the power supply circuit 29 of the entrance main unit 20 via the power supply circuit 39. Is supplied. A power switch 38 for turning on / off the power of the indoor parent device 30 and the entrance child device 20 is attached to the indoor parent device 30.

[0004]

However, in the conventional intercom apparatus using such a dedicated screw 1, the storage space for the dedicated driver 4 is limited to the entrance unit 2.
0 or not provided in the indoor master unit 30. For this reason, the owner must manage the dedicated driver 4,
There is a disadvantage that the dedicated driver 4 is lost or that it is not known that the dedicated driver 4 is a part used for the intercom device.

[0005] The power of the entrance slave unit 20 and the indoor master unit 30 is turned on and off by operating the power switch 38 attached to the indoor master unit 30. If the user attempts to remove the housing 21, the user may forget to turn off the power and perform the operation, which may cause an electric shock to the operator. The present invention has been made to solve the above-mentioned difficulties, and has a storage space for a dedicated driver for attaching and removing a dedicated screw. When using this dedicated driver, the indoor master unit and the entrance slave unit are used. It is an object of the present invention to provide an intercom device whose power is cut off.

[0006]

In order to achieve this object, an intercom according to the present invention comprises an entrance unit whose housing is fixed to a mounting base using a dedicated screw, and a power supply connected to the entrance unit. An intercom device that uses a dedicated screwdriver for attaching and detaching a dedicated screw, and an indoor master unit that is connected to a power switch and uses a dedicated screw. A built-in sub power switch that turns on and off the power supply to the indoor master unit and the entrance slave unit.The indoor master unit has an opening for operating the sub power switch and a slide cover that covers the opening. The driver has a protrusion that protrudes from the long shaft and turns the sub power switch on and off.In order to store the dedicated driver in the indoor master unit, a screwdriver is provided inside the slide cover. That.

[0007] Since the storage space for the dedicated driver for screwing and unloading the dedicated screw is provided in the indoor master unit, the location of the dedicated driver is always clear. There is no need to work during energization, and safety is improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 (a), a microphone and a speaker (not shown) are provided in the entrance slave unit 2.
In addition, the intercom apparatus of the present invention having an expensive mechanical device such as a camera 5 for imaging a visitor and a tilt or pan / tilt device 6 allows a person other than the owner to easily carry the housing 2.
In order to prevent the attachment and detachment of the mounting base 22 from being performed,
The housing 21 and the mounting base 22 are fixed using a special dedicated screw 1. A special dedicated screwdriver 4 is used for attaching and detaching such a special screw 1.

As shown in FIGS. 1 (a) and 1 (b), an indoor master unit 3 connected to the entrance slave unit 2 has a power switch for turning on / off the power supply to the indoor master unit 3 and the entrance slave unit 2. A sub-power switch 31a is provided, which is connected to the power switch 31b and turns on / off the power supply to the indoor master unit 3 and the entrance slave unit 2 when the dedicated screw 1 is used. An opening 33a for operating the sub power switch 31a is provided in the lower housing 33 of the indoor master unit 3, and the opening 33a is slid.
A slide cover 34 for covering 3a is provided.

As shown in FIG. 2A, the dedicated driver 4 has a convex portion 42 which protrudes from the long shaft portion 41 and turns on and off the sub power switch 31a. The shape of the convex portion 42 is not limited to the figure, and may be any size and shape that can turn on and off the sub power switch 31a, as shown in FIG. As shown in FIG. 2A, the dedicated driver 4 is
A driver fixture 35 is provided inside the slide cover 34 in order to be stored therein. Screwdriver fixture 3
5 includes a fixing tool 35a for holding and fixing the long shaft portion 41 and a fixing tool 35b for holding and fixing the convex portion 42. The shape, size, etc. are appropriately selected according to the selected dedicated driver 4. Is done.

The operation of the intercom apparatus according to the present invention will be described below. As shown in FIG.
The dedicated screwdriver 4 is fixed in accordance with the fixing tools 35a and 35b provided on the inner side of the driver 4. Lower housing 33 of indoor master unit 3
The slide cover 34 is slid so as to cover the opening 33a. The sub power switch 31a is mounted on a substrate 37 in the housing, and before the slide cover 34 is slid to cover the opening 33a, the sub power switch 31a is closed.
a is in the “OFF” state, and when the slide cover 34 is slid to cover the opening 33a, the convex portion 42 of the dedicated driver 4 is mounted at a position to shift the sub power switch 31a to the “ON” state. .

As shown in FIG. 3, the power supply of the indoor master unit 3 is
The power is transmitted from the AC100V7 to the indoor parent device 3 via the transmission path, and transmitted to the power supply circuit 39 via the sub power switch 31a and the power switch 31b which is a manual power ON / OFF switch. Is supplied to the power supply circuit 29 of the entrance slave unit 2 via the transmission path from the power supply circuit 39.

When operating the special screw 1, the slide cover 34 is slid to remove the special screwdriver 4 and the cover of the opening 33a is removed, and the sub power switch 31a of the indoor master unit 3 is cut off. Sub power switch 31a
With the disconnection, power is not supplied to the power supply circuit 39 of the indoor parent device 3, and power is not supplied to the entrance slave unit 2 connected to the power supply circuit 39. In this state, the housing 2 using the special screw 1 using the special screwdriver 4 taken out.
The attachment / detachment operation between 1 and the mounting table 22 can be performed safely.

As described above, since the storage space for the dedicated driver 4 for screwing and unloading the dedicated screw 1 is provided in the indoor master unit 3, the location of the dedicated driver 4 is always clear. A dedicated screwdriver 4 fixed to the slide cover 34
Since the power supply circuit 31 is turned on and off by using the convex portion 42, there is no need to work during energization, and the possibility of electric shock to the operator is reduced and safety is improved.

[0015]

As is apparent from the above description, according to the intercom apparatus according to the present invention, the entrance unit whose housing is fixed to the mounting base using the dedicated screw, and the power supply connected to the entrance unit and the power supply An intercom apparatus comprising an indoor master unit equipped with a power switch for turning on and off the supply, and using a special screwdriver to attach and detach a special screw. The indoor master unit is connected to a power switch and uses a special screw. When built-in sub power switch to turn on and off the power supply to the indoor master unit and the entrance slave unit, the indoor master unit includes an opening for operating the sub power switch and a slide cover that covers the opening, The special driver has a convex part that protrudes from the long shaft part and turns on and off the sub power switch. Special screwdriver whereabouts always apparent, also, will increase safety not to work in the energized so using a convex portion of the special screwdriver performing input disconnection of the power supply circuit.

[Brief description of the drawings]

1A and 1B are diagrams illustrating an intercom apparatus according to the present invention, wherein FIG. 1A is an external perspective view, and FIG.

FIGS. 2A and 2B are explanatory views of a slide cover of the intercom apparatus according to the present invention, wherein FIG. 2A is an inner perspective view and FIG.

FIG. 3 is a block diagram illustrating an intercom apparatus according to the present invention.

FIG. 4 is an external perspective view illustrating the structure of a conventional intercom device.

FIG. 5 is a block diagram of a conventional intercom apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Dedicated screw 2 ... Entrance child unit 21 ... (child unit) housing 22 ... Mounting stand 3 ... Indoor master unit 31a ... Sub power switch 31b ... Power switch 32 33 (housing of indoor master unit) 33a opening 34 sliding cover 35 driver fixing device 4 dedicated screwdriver 41 long shaft portion 42 convex Department

Claims (1)

[Claims] An entrance unit (2) in which a housing (21) is fixed to a mounting base (22) using a special screw (1), and a power supply connected to the entrance unit and turned on / off. An intercom apparatus comprising an indoor master unit (3) on which a power switch (31b) is mounted, and using a dedicated screwdriver (4) for attaching and detaching the dedicated screw, wherein the indoor master unit is connected to the power switch. A built-in auxiliary power switch (31a) for turning on and off the power supply to the indoor master unit and the entrance slave unit when the dedicated master screw is used; the indoor master unit operates the auxiliary power switch; An opening (33a) and a slide cover (34) for covering the opening. The dedicated driver has a projection (42) that protrudes from the long axis (41) and turns on and off the sub power switch. The dedicated driver An intercom device, characterized in that a driver fixing device (35) is provided inside the slide cover in order to store the key in the indoor master unit.