JPH0637784U - Storage detection display - Google Patents

Abstract

(57) [Summary] [Purpose] A storage container detection and display device that allows the user to visually check whether or not an item is stored inside the storage box whose inside cannot be seen without opening the door and that can be easily installed. I will provide a. [Structure] A detection base 2 installed by being placed on the bottom surface of a box such as a rocker 14, a plurality of optical sensors 3 provided on the detection base 2, and a rocker 14
The LED 4 is provided so as to be visible from the outside, and is turned on so that the article can be seen from the outside of the rocker 14 when at least one of the optical sensors 3 is turned on because an article is present inside the rocker 14. The storage state in the locker 14 is confirmed by the lighting state of the LED 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stored-item detection display device for detecting and displaying whether or not an item is stored in a closed storage box whose inside cannot be seen from the outside, and more specifically, a locker, a mail box, or a post office box. The present invention relates to a stored-item detection display device capable of externally confirming the presence or absence of an article inside a box whose internal state cannot be visually confirmed from the outside.

[0002]

[Prior art]

 In the case of coin lockers and key lockers, the front surface is a door, but the door is made of a strong material such as metal to safely protect the stored items. Therefore, when looking for an empty locker, we look for a key that has a key on the door, and if the key is stuck, we recognize that it is empty and can be used.

Further, in a mail box and the like, a door for taking out contents and an input port for inserting the mail are often separated from each other. There is such a thing as announcing that mail has been thrown in.

[0004]

[Problems to be solved by the device]

 By the way, in the case of the lockers like the former, it was very difficult to find an empty locker depending on whether a small key was stuck or not, when there were few empty lockers. Also, there are lockers that you can borrow and use the key, but in such a case, the key is not stuck, so it is necessary to find a locker with a number that matches the number of the key, and when the number of lockers increases It was quite troublesome.

Further, in the latter one, since there is a loading port for loading an article separately from the door, the detecting means as described above can be provided by using the loading port, but it seems that only the door is provided. In other words, it is not possible to distinguish whether an article was put in, taken out, or simply opened the door and stopped without doing anything by simply opening and closing the door. In addition, even if a mail item is inserted from the input port and is removed during the process, the detection means will be turned on, so there is a case in which it is erroneously recognized as being inserted even though it was not actually inserted. Furthermore, because of the variety of shapes of the inlet and the shape of the mailbox, it was not possible to attach this main detection device to any mailbox afterwards.

The present invention has been made in view of the circumstances of the prior art as described above, and its purpose is to store the inside of a box for storage which is closed by a door and whose inside cannot be visually recognized well. The object is to provide a device for detecting stored items that can be reliably recognized from the outside and that can be easily installed later.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has an object detection display that detects and displays whether or not an object is stored in a storage box closed by a door that cannot be seen from the outside. In the device, a detection base installed inside the storage box, a plurality of reflective optical sensors provided on the detection base, and an optical sensor provided so as to be visible from the outside of the storage box. When at least one of the above is turned on, a display means for displaying the presence of an article inside the storage box is provided.

[0008]

[Action]

 According to the above configuration, when the article is placed on the at least one optical detection sensor when the door is opened and the article is placed in the box, the light reflected by the article is detected. When it is turned on, the display means is turned on and displayed outside. Also, by setting the detection timing appropriately, when the optical detection means no longer detects the presence of an article inside the box, the display means should be turned off or an empty indication should be displayed. For example, it is possible to grasp at a glance whether the product is used or not.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a usage state of the stored-object detection display device according to this embodiment, FIG. 2 is a perspective view of the stored-object detection display device, and FIG. 3 is a main part showing a mounting state of a reflection type optical sensor. FIG.

As shown in FIG. 2, a stored object detection display device 1 according to this embodiment includes a thin plate-shaped detection base 2 and a reflection type optical sensor (hereinafter referred to as an optical sensor) installed inside the detection base 2. 3) and an LED 4 as a display means provided on the side surface of the detection base 2. As shown in FIG. 3, the optical sensor 3 has a pair of an infrared light emitting element 5 and a light receiving element 6, and a visible light cut filter 7 for eliminating the influence of ambient light is installed on the front surface of both. In addition, a shield plate 8 is erected between both elements so as to prevent malfunction. An appropriate number (five in this embodiment) of the optical sensors 3 having such a configuration are provided so that the visible light cut filter 7 is exposed on the front side 9 of the detection base 2. The number and installation position of the optical sensors 3 are appropriately selected according to the size of the detection base 2 and the object on which the detection base 2 is installed.

Further, as shown in FIG. 4, a detection circuit 10 is built in the detection base 2. The detection circuit 10 includes an oscillator 11, a waveform shaping circuit 12, a flip-flop 13, the above-mentioned light emitting element 5, light receiving element 6, and LED 4. The oscillator 11 outputs a pulse of several μs to several tens μs at a predetermined interval, for example, once every several seconds to several minutes, and causes the light emitting element 5 to emit light. If there is any article 17 on the detection base 2, the light receiving element 6 detects the light reflected by the article 17, outputs it to the waveform shaping circuit 12, and shapes it into a square wave by the waveform shaping circuit 12. At the same time, the width of the pulse is doubled. The output from the oscillator 11 and the pulse from the waveform shaping circuit 12 are input to the flip-flop 13, the input is taken from the waveform shaping circuit 12 at the trailing edge of the pulse from the oscillator 11, and the LED 4 is driven if there is an input. , LE D4 lights up. Then, when the reflected light from the article is no longer detected, the output from the light receiving element 6 is lost and the LED 4 is turned off. Therefore, it is not necessary to provide a reset device. A commercial power source, a battery, or the like is appropriately selected as the power source according to the installation location.

The stored object detection display device 1 as described above is installed on the bottom 14a of each locker 14 as shown in FIG. Then, when the article 17 is stored in the locker 14, the LED 4 emits light, but when the door 15 is closed, the light emitting state of the LED 4 is seen from the window portion 16 provided in a portion corresponding to the LED 4 on the front surface of the door 15 of the locker 14. be able to. Although the LED 4 is used as the display means in this embodiment, publicly known ones other than the LED can be used, and the installation location thereof can be appropriately selected. Further, when a plurality of optical sensors 3 are provided as described above, the detection circuit takes the output logical sum of the respective light receiving elements 6 and when one of them is in the detection state, the LED 4 is turned on. . As a result, when some kind of article 17 is stored in the locker 14, the LED 4 is almost certainly turned on, and the usage state of the locker 14 can be visually recognized from the outside.

Although the locker 14 is shown as an example in this embodiment, the locker 14 is also used for all box-shaped objects such as a mail box which is closed by a door so that the inside cannot be seen or is hard to see. It goes without saying that this stored object detection display device 1 can be used. In this case, it goes without saying that the size of the detection base 2 is determined according to the size of the box used.

As described above, according to this embodiment configured as described above, whether or not the article 17 is stored inside by merely laying the stored article detection display device 1 on the bottom 14a of the locker 14. Can be visually recognized by the display state of the LED 4. Therefore, it is easy to find an empty locker 14 that can be used.

[0015]

[Effect of device]

 As is clear from the above description, the detection base installed by placing it on the bottom surface of the box, the plurality of reflective optical sensors provided on the detection base, and the storage box According to the present invention, there is provided an optical device which is provided so as to be visible from the outside and which displays the presence of an article inside the storage box when at least one of the optical sensors is turned on. When the sensor detects the presence of an item in the box, the display shows the detection status, so it is closed by the door and the inside of the box for storage cannot be clearly seen. The state can be reliably recognized from the outside. Since it can be installed simply by placing it on the bottom of the box to be detected, it can also be installed on the existing box for storage simply by matching the package detection display device to the size of the bottom. be able to.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a stored object detection display device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a stored object detection display device according to this embodiment.

FIG. 3 is a main-portion cross-sectional view showing the structure of an optical sensor of the stored-object detection display device.

FIG. 4 is a circuit diagram showing a detection circuit of this stored object detection display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage object detection display device 2 Detection base 3 Optical sensor 4 LED 5 Light emitting element 6 Light receiving element 10 Detection circuit 11 Oscillator 12 Waveform shaping circuit 13 Flip-flop 14 Rocker 15 Door 16 Window part 17 Article

Claims (1)

[Scope of utility model registration request] 1. A storage article detection display device for detecting and displaying whether or not an article is stored inside a storage box closed by a door that cannot be seen from the outside. A detection base to be installed, a plurality of reflective optical sensors provided on the detection base, and a detection base provided so as to be visible from the outside of the storage box, and at least one of the optical sensors is turned on. And a display means for displaying that the article is present inside the storage box when the storage box is displayed.