JPH0524879U - Entrance door - Google Patents

Abstract

(57) [Summary] [Purpose] To automatically illuminate the feet when the entrance door is opened, and to facilitate installation or remodeling work and reduce power consumption. [Structure] A door plate 1 opened and closed at an entrance opening,
An illuminance sensor 2 that detects the indoor brightness, a door opening sensor 3 that detects that the door plate 1 is open, a foot lamp 4 that is provided below the door plate 1 on the indoor side, and an illuminance sensor 2 detect The lighting circuit 5 is configured to light the foot lamp 4 when the indoor brightness is below a predetermined value and the door opening sensor 3 detects that the door plate 1 is opened.
Is the foot lamp 4 after a predetermined time has passed since the foot lamp 4 was turned on.
It includes a timer circuit 54 as an automatic extinguishing circuit for extinguishing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an entrance door used in an entrance opening of a house.

[0002]

[Problems to be solved by conventional techniques and devices]

 If you go home at night in a house where nobody is there, you may be inconvenient because the room is dark when you open the entrance. Although it is good to remember the position of the indoor light switch empirically, I often step on shoes at the entrance or stumble on something.

In order to solve such a problem, a foot light that automatically lights up and illuminates the foot when the entrance door is opened may be attached to the lower part of the wall in the entrance room, etc. If it is time, the installation work becomes large, and at the time of renovation, it is necessary to make a hole in the lower part of the wall surface, etc., and the renovation work becomes large.

Further, if the light is turned on only by opening the entrance door, the light will be turned on even when returning home during the daytime, and power will be wasted a lot. The present invention has been made in order to solve the above problems, and automatically illuminates the feet when the entrance door is opened, and facilitates installation work or remodeling work and reduces power consumption. The purpose is to be able to.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the entrance door according to claim 1 of the present invention detects a door plate opened and closed at an entrance opening, an illuminance sensor for detecting indoor brightness, and an open door plate. When the door open sensor detects that the door plate is opened when the indoor brightness detected by the illuminance sensor is below the specified value, and the indoor light detected at the lower part of the door plate on the indoor side. And a lighting circuit for lighting the foot lamp.

In order to achieve the same object, the entrance door according to claim 2 of the present invention is the entrance door according to the structure of claim 1, wherein the lighting circuit has a predetermined time after the foot lamp is turned on. It includes an automatic light-off circuit that turns off the foot lights.

[0007]

【Example】

 Embodiments of the present invention will be described below. FIG. 1 is an explanatory view of an entrance door according to an embodiment of the present invention. The entrance door shown in FIG. 1 includes a door plate 1 that is opened and closed at an entrance opening, an illuminance sensor 2 that detects the brightness of the interior, a door opening sensor 3 that detects that the door plate 1 is open, and a door. If the indoor brightness detected by the illuminance sensor 2 is less than a predetermined value and the door open sensor 3 detects that the door plate is opened, the foot light 4 provided on the lower part of the plate 1 on the indoor side is The circuit box 50 contains a lighting circuit for lighting the foot lamp 4.

The door plate 1 shown in FIG. 1 is openably and closably mounted by being attached to a door frame provided at the entrance opening through a hinge (not shown). The door plate 1 is a so-called hollow plate composed of two plates facing each other with a gap. A foot lamp 4 is provided below the indoor surface of the door plate 1. More specifically, a footlight opening 11 for mounting the footlight 4 is provided in the lower part of the indoor side surface of the door plate 1, and the door plate is provided from the periphery of the footlight opening. 1 A back mirror 12 is provided so as to be curved inside. The foot lamp 4 is mounted in front of the rear-view mirror 12 by a mounting tool (not shown). Further, a translucent cover plate 13 is attached so as to cover the foot lamp opening 11 in order to protect the foot lamp 4.

On the other hand, the door opening sensor 3 of the present embodiment is specifically a limit switch, and the position of the switch protrusion 31 provided on the side end plate of the door plate 1 is converted into an electric signal to be a door signal. Detects that is opened. That is, when the door is closed, the switch protrusion 31 is pressed against the door frame and retracted, but when the door plate 1 is opened, the switch protrusion 31 is advanced by the return spring and the position changes. This change in the position of the switch protrusion 31 is converted into an electric signal to detect that the door plate 1 is opened.

An illuminance sensor 2 for detecting the indoor brightness is provided on the indoor side surface of the door plate 1. The illuminance sensor 2 is specifically composed of a phototransistor or a photodetection element such as CdS. The output signal of the illuminance sensor 2 is amplified by the amplifier 21 and sent to the lighting circuit 5 as shown in FIG. A circuit box 50 having a lighting circuit, which will be described later, is housed inside the hollow door plate 1, and a power cord 8 extending from the circuit box 50 is exposed to the outside of the door plate 1. A plug 81 is provided at the tip of the power cord 8.

The entrance door having the above configuration is assembled in advance in a factory and carried into the site. In the field, the door plate 1 is simply replaced with that according to the above-mentioned embodiment, and the plug 81 at the tip of the power cord 8 exposed to the outside is simply inserted into a nearby outlet. Therefore, it has the feature that construction can be completed in a very short time. Next, the operation of the entrance door of this embodiment will be described.

FIG. 2 is a block diagram showing an outline of a circuit in the circuit box in FIG. As shown in FIG. 2, a lighting circuit 5 and a relay 7 that is driven by the lighting circuit 5 to light the foot lamp 4 are housed in the circuit box 50. The lighting circuit 5 compares the output signal (voltage) of the illuminance sensor 2 amplified by the amplifier 21 with a predetermined reference voltage and generates an output voltage when the output voltage (voltage) is equal to or lower than the reference voltage. The AND element 52 to which the output of the operational amplifier 51 and the signal to be turned on / off by the door open sensor 3 which is a limit switch are input, and the output side of the AND element 52 are connected via a timer circuit 54 as an automatic light-off circuit. , And a relay drive circuit 53 for turning on the relay 7 by the output of the AND element to drive the relay 7.

Now, it is assumed that the entrance door of this embodiment having the above-mentioned configuration is opened at night when there is no light indoors. Then, first, the door open sensor 3, which is a limit switch, is turned on to apply a predetermined input voltage to one input terminal of the AND element 52. At the same time, since the output signal of the illuminance sensor 2 is below the reference value, the operational amplifier 51 generates an output voltage and applies the input voltage to the other input terminal of the AND element 52.

As a result, the AND element 52 is turned on to generate an output voltage, which causes the relay drive circuit 53 to operate while turning on the timer circuit 54 to drive the relay 7, and the foot lamp 4 is turned on. Then, the timer circuit works to stop the input signal to the relay drive circuit 53 when the preset lighting time elapses and the time is up. As a result, the drive of the relay 7 is stopped and the foot lamp is stopped. 4 is turned off. The lighting time is set to about 10 to 31 seconds, for example.

As is apparent from the above description of the operation, even when the entrance door is opened, the foot lamp 4 is not turned on when the indoor brightness is higher than a certain level, and the waste of electric power can be reduced. ing. Further, since the foot lamp 4 is adapted to be automatically extinguished after a predetermined lighting time has elapsed after being lit, the waste of electric power can be further reduced. If the automatic light-off configuration is not adopted, a manual light-off switch is provided to turn off the light manually.

[0016]

[Effect of the device]

 As described above, according to the entrance door of claim 1 of the present application, since the feet are automatically illuminated when the entrance door is opened, there is no stepping or tripping on shoes at the feet, and therefore It has the effect that installation work or remodeling work is easy and the waste of electricity is reduced.

Further, according to the entrance door of claim 2 of the present application, since the foot lamp is automatically turned off after a lapse of a predetermined time after being turned on, it is possible to further reduce power waste. There is.

[Brief description of drawings]

FIG. 1 is an explanatory view of an entrance door according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an outline of a circuit in a circuit box in FIG.

[Explanation of symbols]

1 Door Plate 2 Illuminance Sensor 3 Door Open Sensor 4 Foot Lamp 5 Lighting Circuit 50 Circuit Box 51 Operational Amplifier 52 AND
Element 53 Relay drive circuit 54 Timer circuit as automatic light-off circuit 7 Relay 8 Power cord

Claims (2)

[Scope of utility model registration request] 1. A door plate that opens and closes at an entrance opening, an illuminance sensor that detects indoor brightness, a door open sensor that detects that the door plate is open, and a door plate provided below the door plate on the indoor side. And a lighting circuit that lights the foot lamp when the indoor brightness detected by the illuminance sensor is less than a predetermined value and the door open sensor detects that the door plate is opened. The entrance door featuring. 2. The entrance door according to claim 1, wherein the lighting circuit includes an automatic light-off circuit that turns off the foot light after a predetermined time has elapsed after the foot light is turned on.