JP7298060B2 - Display device and picking system using the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a display device and a picking system using the display device, and more particularly to a picking system that sorts various and large amounts of articles according to instructions of the display device.

2. Description of the Related Art In a distribution center or the like, a picking system is used to sort a large number of various types of goods that have been brought in according to their destinations.

As an example of a picking system, a system is known that includes an article storage shelf storing a large number of articles to be sorted, and a conveyor that puts the articles picked from the article storage shelf into a collection box and conveys them. .

In the case of such a picking system, the item storage shelf contains a large number of storage boxes that individually store the specified items, and instructions from the management computer to instruct the worker on the position and number of items to be picked. A number of display devices are provided.

Patent Documents 1 and 2 disclose, as a display device used in the picking system as described above, a display device that instructs a worker the position of an article to be picked from an article storage shelf and that the worker confirms the instruction. and a digital quantity display to indicate to the operator the number of items to be picked from an item storage shelf.

JP 2016-222426 A JP 2017-001760 A

The digital quantity display unit of the display device described in Patent Documents 1 and 2 uses a 7-segment LED as a light source, and the operator of the picking system is displayed on the display device arranged on the article storage shelf. The work of picking the number of articles corresponding to the number of the 7-segment LED from the article storage shelf and throwing them into the collection box on the belt conveyor is repeated.

The display device used in the above picking system has a textured surface to prevent the numbers displayed on the quantity display from being difficult to see due to the reflection of light from the lighting placed on the ceiling of the workplace. It is desirable to apply anti-reflection processing to reduce light reflection.

In addition, since the display device used in the picking system may be touched and operated by an operator, it is desired to improve usability and design by making the surface shape arcuate.

However, when the surface of the display device is subjected to antireflection processing, the light transmittance of the surface of the display device decreases . Due to the large clearance between the light source (7-segment LED) mounted on the wiring board and the surface of the display device, when the operator looks at the numbers on the 7-segment LED, the outlines of the numbers appear blurred, and in some cases has the problem of misrecognizing numbers.

An object of the present invention is to provide a display device with improved visibility and a picking system using the same.

A display device of the present invention includes a panel case having a quantity display portion displayed on the front surface thereof, and a wiring substrate provided with a light source for the quantity display portion disposed on the back side of the panel case, the panel case comprising: The surface is subjected to antireflection processing and has a substantially arcuate surface shape. It is arranged substantially concentrically with the surface of the internal light source.

According to the present invention, it is possible to realize a display device with improved visibility and a picking system using the same.

1 is a schematic plan view of a picking system according to an embodiment of the invention; FIG. 2 is a front view of a display device used in the picking system of FIG. 1; FIG. 3 is an exploded perspective view of the display device shown in FIG. 2; FIG. 3 is a perspective view showing the surface shape of a panel case of the display device shown in FIG. 2 and the surface shape of a 7-segment LED mounted on a wiring board; FIG. 3 is a schematic cross-sectional view showing the surface shape of a panel case of the display device shown in FIG. 2 and the surface shape of a 7-segment LED mounted on a wiring board; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a schematic plan view of a picking system according to this embodiment, FIG. 2 is a front view of a display device used in the picking system of FIG. 1, and FIG. 3 is an exploded perspective view of the display device shown in FIG. is.

In the following description, the scope necessary for the description to achieve the object of the present invention will be mainly described, and the parts that are omitted from description will be based on known techniques.

As shown in FIG. 1, a picking system 1 according to the present embodiment includes an article storage shelf 2 for storing a wide variety of articles and a large quantity of articles. and a belt conveyor 4 for conveying a large number of collection boxes 3 into which the collected articles are put.

Although not particularly limited, the article storage rack 2 of this example is divided into four picking zones (zone a to zone d) along the traveling direction of the belt conveyor 4. are further partitioned into three frontages 7 . Although not shown, each frontage 7 is lined with a large number of storage boxes for individually storing designated articles.

Each frontage 7 of the article storage rack 2 is provided with a large number of display devices 5 for instructing the worker M on the picking position, the number of pickings, etc. of articles according to commands from a management computer (not shown). These display devices 5 are arranged along the horizontal direction of the article storage rack 2 and connected to each other via a cable (not shown) connected to a management computer.

A large number of guide ramps 6 are provided in the vicinity of the belt conveyor 4 along the traveling direction of the belt conveyor 4 . Each of the guide lamps 6 is equipped with multicolor light-emitting diodes (LEDs) that emit light in different colors, and is synchronized with a predetermined collection box 3 out of a large number of collection boxes 3 moving on the belt conveyor 4. It is configured to light up in a predetermined color.

In the picking system 1 having the configuration described above, a worker M placed in each zone a to d of the article storage shelf 2 picks up a predetermined article from the article storage shelf 2 based on the information indicated through the display 5. After picking up a predetermined number of items, the picked articles are thrown into a collection box 3 at a position indicated by a guide lamp 6 among the collection boxes 3 on the belt conveyor 4 . Further, when the work of loading the articles is completed, the worker M manually presses a confirmation instructing section (described later) of the display device 5 to activate (light up) the confirmation instructing section, thereby confirming the completion of the loading work, and then the next step. move to the work of

In the picking system 1 having the configuration described above, a worker M placed in each zone a to d of the article storage shelf 2 moves from a predetermined location of the article storage shelf 2 to a predetermined location in accordance with information indicated through the display device 5. After picking up a predetermined number of articles, the picked articles are thrown into the article collection box 3 at the position indicated by the guide lamp 6 among the article collection boxes 3 on the belt conveyor 4 . Subsequently, the worker M notifies the management computer of the completion of the input work by pressing a confirmation instructing section (described later) of the display device 5 by hand to activate the confirmation instructing section.

The management computer, which receives notification of the completion of the input work from the worker M, instructs the worker M through the display device 5 information such as the position and number of articles to be picked next.

As shown in FIG. 2, the display device 5 of the present embodiment includes an illuminated confirmation instruction section 5A and a digital quantity display section 5B.

The confirmation instruction section 5A instructs the worker M on the position of the article to be picked from the article storage shelf 2, and when the work of putting in the article is completed, the worker M pushes it by hand to notify the management computer of the completion of the work. have a function.

The quantity display unit 5B has a function of indicating the number of articles to be picked from the article storage shelf 2 to the worker M, and uses, for example, a 3-digit 7-segment LED as a light source.

In addition, the surface of the display device 5 is subjected to anti-reflection processing such as texturing in order to prevent the numbers on the quantity display portion 5B from being difficult to see due to the reflection of the light from the lighting placed on the ceiling of the workplace. As a result, a matte or semi-matte state is obtained.

As shown in FIG. 3, the display device 5 has a structure in which a panel case 51 and a wiring board 52 are laminated in order from the surface side.

The outermost surface of the panel case 51 is provided with a transparent synthetic resin film whose front surface is subjected to antireflection processing and whose rear surface is printed with patterns of the confirmation instruction portion 5A and the quantity display portion 5B. Although illustration is omitted, a completion button that is manually pressed by the worker M to operate when the article loading operation is completed is built in the confirmation instructing portion 5A where the pattern is printed.

Supports 51</b>S for fixing the panel case 51 to the wiring board 52 are provided integrally with the panel case 51 at the four corners of the lower surface of the panel case 51 .

A multi-color LED 8A and a completion button switch (not shown) are provided on the wiring board 52 in the lower layer of the panel case 51 at a location corresponding to the confirmation instruction portion 5A of the panel case 51 . Also, a 7-segment LED (light source for quantity display section) 8B is mounted at a location corresponding to the quantity display section 5B. Furthermore, a cable (not shown) is connected to the wiring board 52, and a power supply and a control signal from the management computer are supplied through this cable.

FIG. 4 is a perspective view showing the surface shape of the panel case 51 and the surface shape of the 7-segment LED 8B mounted on the wiring board 52 in the display device 5 of the present embodiment, and FIG. 5 is a schematic cross-sectional view showing the surface shape of a panel case 51 in the display device 5 and the surface shape of 7-segment LEDs 8B mounted on a wiring board 52. FIG.

As shown in FIGS. 4 and 5, since the panel case 51 is touched and operated by the operator, the surface shape is made substantially arcuate to improve usability and design.

Along with this, the surface shape of the 7-segment LED 8B is also substantially arc-shaped, and the surfaces of the panel case 51 and the 7-segment LED 8B are arranged substantially concentrically.

As described above, according to the display device 5 of the present embodiment, since the surface shape of the panel case 51 is substantially arc-shaped, the usability and design of the display device 5 are improved. It becomes good and can contribute to the improvement of the worker M's willingness to work.

In this case, the surface of the 7-segment LED 8B is also made substantially arcuate in accordance with the surface shape of the panel case 51, and the surface of the panel case 51 and the surface of the 7-segment LED 8B are arranged substantially concentrically. and the surface of the 7-segment LED 8B is preferably minimized over the entire surface of the panel case 51 . In other words, it is preferable that the surface of the 7-segment LED 8B be located closest to the panel case 51 over the entire surface of the panel case 51 .

By doing so, when the worker looks at the 7-segment LED 8B through the panel case 51, the outline of the number can be clearly seen without blurring, so that the number displayed by the 7-segment LED 8B can be visually recognized instantaneously and accurately. can be done.

That is, according to the display device 5 of the present embodiment, the surface of the panel case 51 is subjected to the anti-reflection treatment, thereby reducing the light reflection on the surface of the display device 5, while the back surface of the panel case 51 and the 7 segments are arranged. By minimizing the clearance with the surface of the LED 8B over the entire surface of the panel case 51, it is possible to suppress the deterioration of the definition of the 7-segment LED 8B, so that the display device 5 with improved visibility can be realized. .

Although the invention made by the present inventor has been specifically described based on the embodiment, the invention is not limited to the above embodiment, and can be variously modified without departing from the gist of the invention. Needless to say.

Although the display device 5 of the above-described embodiment includes the confirmation instruction section 5A and the quantity display section 5B, the present invention is not limited to this, as long as it includes at least the quantity display section 5B. can be applied.

Also, the configuration of the picking system 1 of the above-described embodiment is an example of the picking system, and is not limited to this. The invention can be applied.

1: Picking system 2: Article storage shelf 3: Collection box 4: Belt conveyor 5: Display device 5A: Confirmation instruction unit 5B: Quantity display unit 6: Guide lamp 7: Frontage 8A: LED
8B: 7-segment LED (light source for quantity display)
51: Panel case 51S: Post 52: Wiring board M: Operator

Claims (3)

A display having a panel case for instructing information about the quantity of articles to be picked by visually recognizing the quantity display part, and a wiring board provided with a light source for the quantity display part arranged on the back side of the panel case. a device,
The panel case is provided with a film on the surface of which antireflection processing is applied and on the back surface of which the pattern of the quantity display part is printed, and the surface shape of the panel case is substantially arc-shaped. The surface shape of the light source is substantially arc-shaped, and the surface of the panel case and the surface of the light source for the quantity display portion are arranged substantially concentrically, so that the pattern of the quantity display portion of the panel case is printed. A display device, wherein the clearance between the rear surface of the panel case and the surface of the light source for the quantity display section is substantially constant over substantially the entire area of the area . 2. The display device according to claim 1, wherein the light source for the quantity display section is a 7-segment LED. 3. A picking system for sorting articles according to instructions shown on the quantity display section of the display device according to claim 1 or 2.

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