JP4301902B2 - External projection device for article information - Google Patents

Description

The present invention relates to an out-of-vehicle projection apparatus for article information that provides an operator who operates a manned forklift with information related to a load, goods, food, or material (hereinafter simply referred to as “article”) that is an object of entry / exit. .

A projector and its light-receiving surface for providing article information including the location, number of items, or packaging of items to the operator responsible for taking in / out items from the storage shelf and the light receiving surface of the projector in the appropriate place on the storage shelf The installation technique is disclosed in the following patent document.
Japanese Patent Laid-Open No. 10-167428

When an operator who operates a manned forklift is responsible for loading and unloading articles based on the article information of the central management system, instead of checking the article information projected on the light receiving surface one by one, a terminal mounted on the forklift This is done by looking at the display on the device. However, when carrying out the so-called picking work in which a small amount of articles are manually removed from the pallets or containers, instead of the pallets on which the articles are loaded using the same forklift or the containers storing the articles, the above-mentioned each time, Operators must get off the forklift and face the pallet or container. For this reason, the operator must get off the vehicle while memorizing the article information displayed on the display of the terminal device and check the suitability in the middle of the picking work. Forcing is a problem.

Therefore, an object of the present invention is to provide an out-of-vehicle projection apparatus for article information that reduces the burden on an operator of a manned forklift that performs picking work.

Outside the projection apparatus of the article information in accordance with the present invention, a terminal device for receiving an article information signaled, it provided manned forklift which is operated by the operator, to the manned forklift, organic person the article information as a visible image Projection means for projecting outside the vehicle of the forklift and detection means for detecting whether or not the operator is on board are provided, and when the detection means detects that the operator is not on board, the projection means Projects the visible image

The article information outside projection apparatus according to the present invention is characterized in that the projection means is a means for irradiating a laser beam, and projects a visible image by the laser beam onto a projection plane set outside the vehicle. To do.

Furthermore, the vehicle information projection apparatus for article information according to the present invention is characterized in that the projection surface is set between a pair of forks protruding forward of the manned forklift.

According to the external projection apparatus for article information according to the present invention, for example, when the terminal information provided in the manned forklift receives the article information that is signaled and transmitted from the central management system via the wireless LAN, the projection means The article information is projected as a visible image outside the manned forklift . If the contents of this article information include various information such as the storage location, number, name, or packaging of articles to be picked, the operator can display them on the terminal device display as before. There is no need to memorize product information. Moreover, since it is sufficient for the operator to view the visible image while getting off the vehicle in order to confirm the suitability during the picking operation, it is possible to save the operator from getting on and off the manned forklift many times.

  Therefore, according to the out-of-vehicle projection device, in addition to reducing the burden on the operator who performs the picking work, it eliminates work mistakes such as mistaking of articles and misidentification of the number that are unavoidable in the picking work that depends only on the memorization of the operator. be able to.

Furthermore, according to the vehicle information projection apparatus for article information according to the present invention, since the detection means for detecting whether the operator is on the manned forklift is provided, the detection means indicates that the operator is not on the board. When detected, in other words, when the operator gets off the manned forklift and performs a picking operation, a visible image can be projected only on the projection means. Therefore, when carrying out cargo handling work other than picking work using a manned forklift , the projection means can be stopped to save power. In addition, when the outside projection device is mounted on a large number of manned forklifts working on the same premises, only a manned forklift operated by the operator performing the picking operation projects a visible image, and other manned on-the-go Since the projection means of the forklift can be automatically stopped, it is possible to prevent a situation in which a plurality of visible images overlap and the operator cannot determine the contents.

Furthermore, according to the vehicle information projection apparatus for article information according to the present invention, the projection means is a means for irradiating a laser beam, and a visible image by the laser beam is projected onto a projection plane set outside the vehicle. It is possible to obtain a clear visible image regardless of the distance between the projection plane and the projection plane. Accordingly, since it is not necessary to adjust the focal length as in the case of forming an image on the projection surface with an optical lens, the projection surface is, for example, a roadbed on which a manned forklift travels, a surface of an article, or a wall surface in the vicinity of a manned forklift. Regardless of which is selected, there is an advantage that a clear visible image can be obtained immediately.

  Furthermore, according to the vehicle exterior projection apparatus for article information according to the present invention, since the projection surface is set between a pair of forks protruding forward of the manned forklift, the operator who gets off the manned forklift and performs the picking work A visible image can be projected in the vicinity. Therefore, when the operator confirms the visible image while performing the picking work, the operator does not need to move the body or move the line of sight greatly, and the picking work can be made more efficient.

An outside projection apparatus for article information according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1 to FIG. 3, an out-of-vehicle projection apparatus 1 for article information according to this embodiment is provided with a terminal device 2 for receiving signaled article information in a manned forklift 3 driven by an operator. The forklift 3 is provided with projection means 4 for projecting article information as a visible image 41 outside the vehicle. Furthermore, the manned forklift 3 is provided with detection means 5 for detecting whether or not the operator is on board, and only when the detection means 5 detects that the operator is not on board, the projection means 4 is provided. The visible image 41 can be projected. Details are as follows.

  FIG. 1 shows that the terminal device 2 receives the article information transmitted as a signal from the central management system 11 via the wireless LAN. The terminal device 2 is mainly configured by a wireless modem 21 connected to a wireless LAN, a liquid crystal display 22 that displays article information as a chart or a character string, and a central information processing unit 23. It is desirable that the article information includes at least the storage location, type, number, name, or packaging of the article to be picked. The manned forklift 3 has the terminal device 2 attached to a column 32 of the protective roof 31. An operator who has boarded the deck 33 of the manned forklift 3 can input desired data to the terminal device 2 by reaching out and directly touching the liquid crystal display 22.

  Examples of the projecting unit 4 include a unit that irradiates a laser beam. As shown in FIG. 4, the visible image 41 is formed on the projection surface 6 set outside the vehicle by scanning the laser beam. Here, “scanning” refers to irradiating a laser beam only at a point 43 defined on a scanning line 42 having a very small width obtained by dividing the projection surface 6 in one direction, and cuts off the laser beam at a portion other than the point 43. That is. By repeating this operation for every scanning line 42 at high speed, an afterimage as if, for example, the letter “O” in the figure is fixed on the projection surface 6 appears on the retina of the operator. As a laser beam irradiation method, in addition to the scanning method described above, a character may be drawn by bending the laser beam directly and drawing the character like a single stroke. The characters that continue to remain as afterimages.

  The projection surface 6 may be any flat surface that can project the visible image 41, but is preferably set between a pair of forks 7 that protrude forward of the manned forklift 3. FIG. 3 shows an example in which the letters “A”, “B”, “10”, and “5” are aimed at the floor surface located between the pair of forks 7 and this floor surface is selected as the projection surface 6. Yes. In this case, since the visible image 41 can be projected in the vicinity of the operator who gets off the manned forklift 3 and performs the picking work, the operator moves his body or looks at the visual image 41 while confirming the visible image 41 while performing the picking work. There is no need to move it a lot. On the other hand, the projection means 4 is attached to the side surface of the mast 34 raised at the front of the chassis of the manned forklift 3. This is because the projection means 4 is intended not to contact the fork 7 that moves up and down as the mast 34 expands and contracts. The mounting position of the projection means 4 is not particularly limited.

  In addition, for example, the surface (upper surface, front surface, side surface) of the article 8 shown in FIG. 3, the surface of the pallet 81 on which the article 8 is placed, or the wall surface in the vicinity of the manned forklift 3 is selected as the projection surface 6. Can do. When the visible image 41 is projected between the pair of forks 7 as described above, the surface of the article 8 is necessarily the projection plane 6 with the fork 7 being inserted inward of the pallet 81. . Alternatively, as the projection unit 4, a known projector that irradiates the visible image 41 onto the projection surface 6 exemplified above through an optical lens 44 as shown in FIG. 5 may be applied.

  According to the outside projection apparatus 1 described above, the projection unit 4 projects the article information as a visible image 41 on the outside of the manned forklift 3, so that the contents of the article information are stored in the article to be picked. By including various information such as place, number, name, or packing, it is not necessary for the operator performing the picking work to get off the vehicle while memorizing the article information displayed on the liquid crystal display 22 of the terminal device 2 one by one. Moreover, since it is sufficient for the operator to view the visible image 41 while getting off the vehicle to check whether or not the picking operation is appropriate, the trouble that the operator gets on and off the manned forklift 3 many times can be eliminated. Therefore, according to the out-of-vehicle projection apparatus 1, in addition to reducing the burden on the operator who performs the picking work, it eliminates work mistakes such as misplacement of articles and misidentification of the number that are unavoidable in the picking work that depends only on the memorization of the operator. be able to.

  Further, the detection means 5 is configured to detect the operation of the deadman brake, and based on this detection signal, the central information processing unit 23 of the terminal device 2 projects the visible image 41 on the projection means 4. May be. The deadman brake is a safety device that detects that the operator is not on the vehicle with a sensor or the like and activates the braking device of the manned forklift 3 or locks the drive device based on the detection signal. That is, when the operator gets off the manned forklift 3 and performs the picking work, the above-mentioned deadman brake operates, so that the projection means 4 projects the visible image 41 only in this state. Further, the projection means 4 can be automatically stopped while the operator is running the manned forklift 3.

  Further, according to the outside-vehicle projection device 1, the projection unit 4 scans the laser beam to form the visible image 41 as described above, so that it is clear regardless of the distance between the projection unit 4 and the projection surface 6. Imaging can be obtained. Therefore, there is an advantage that it is not necessary to adjust the focal length as in the case of forming an image on the projection surface 6 with an optical lens. In addition to the above, the present invention can be implemented in variously modified, modified, or modified forms based on the knowledge of those skilled in the art without departing from the spirit of the present invention. For example, in addition to projecting article information by the projecting means 4, the operator may perceive information of the same content by voice. Further, in order to cause either one of the liquid crystal display 22 and the projection unit 4 to always display the article information, it is desirable to provide a change-over switch that turns on the other when either one is off.

The vehicle information projection apparatus for article information according to the present invention says that when an operator driving a manned forklift performs a picking operation based on the display on a display mounted on the vehicle, the operator accurately memorizes the display contents. It saves time and effort. Therefore, it is possible to reduce the labor burden of an operator who operates a manned forklift in a premises such as a warehouse. Moreover, the apparatus achieves speeding up and simplification of the cargo handling work including the picking work.

1 is a block diagram showing the overall configuration of an article information outside-projection apparatus according to an embodiment of the present invention. The block diagram which shows the structure of the principal part of the vehicle exterior projection apparatus of the article information which concerns on embodiment of this invention. The perspective view which shows the condition of the cargo handling work by the manned forklift which mounts the vehicle exterior projection apparatus of the article information which concerns on embodiment of this invention. The conceptual diagram explaining the principle of the projection means applied to the external projection apparatus of the article | item information which concerns on embodiment of this invention. The perspective view which shows the other example of the projection means applied to the vehicle exterior projection apparatus of the article | item information which concerns on embodiment of this invention.

1: Out-of-vehicle projection device 2: Terminal device 3: Manned forklift 4: Projection means 5: Detection means 6: Projection surface 7: Fork 8: Article

Claims (3)

The terminal apparatus for receiving a signal of article information, and projection means provided on manned forklift which is operated by the operator, to be projected on the manned forklift, the outside of the organic person forklift the article information as a visible image, the operator Detecting means for detecting whether or not the vehicle is on board, and when the detection means detects that the operator is not on board, the projecting means projects the visible image. A vehicle exterior projection apparatus for article information. 2. The vehicle information projection apparatus according to claim 1 , wherein the projection means is a means for irradiating a laser beam, and projects a visible image by the laser beam onto a projection plane set outside the vehicle. 3. The vehicle exterior projection apparatus for article information according to claim 1 , wherein the projection surface is set between a pair of forks protruding forward of the manned forklift.

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