JP2000247366A - Container for conveyance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recognize a content from the outside visually and using a photosensor by integrating a container for conveyance into a substantially box-shaped one with its upper part opened using a synthetic resin to enable the stacking and the nesting. SOLUTION: A container 10 for conveyance is formed of a synthetic resin, and of rectangular box-shaped one with its upper part opened, and a transparent or translucent portion 10b is formed, leaving an opaque portion 10a behind partly. The opaque portion 10a passes between photosensors to confirm the container 10 for conveyance. The transparent or translucent portion 10b occupies about one half of the total surface area of a long side wall 12, and the transparent or translucent portion 10b is sufficiently large so that the container 10 for conveyance can be visually recognized also from the diagonal direction. When a large number of containers 10 for conveyance are nested, the photosensors are located above the containers 10, and the presence/absence of residues can be visually recognized from the outside even when the stacked containers 10 are passed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport container also called a container integrally molded by injection molding using a synthetic resin as a material, and more particularly to the detection of presence by an optical sensor and the presence or absence of external contents. The present invention relates to a transport container capable of surely confirming.

[0002]

2. Description of the Related Art Transport containers made of synthetic resin are used for storing and transporting various objects, and are also used for transporting thin documents collectively. Such transport containers are also used as so-called "return boxes", and when storing and transporting a large amount of items, these transport containers are sequentially stacked on top of "stacking". When carrying out only the transport containers by taking out the stored items, "nesting" in which the transport containers are stacked on each other may be performed.

[0003] Considering the case where such a transport container is intended for thin documents as its storage,
It is as follows. This type of transport container is generally most efficient in the form of a box when transporting and storing is considered, but in such a case, thin documents can be stored inside even if they are completely removed. It is easy to be stuck in the corner. For this reason, generally, after taking out the contents of this type of transport container or when nesting empty ones, it is visually checked from outside for the presence of any residue, that is, visually checked. Need to check. In order to facilitate the visual recognition, it has been conceived that a transparent or translucent synthetic resin material alone is integrally molded in this type of transport container.

[0004] However, this type of transport container is not suitable for collection and delivery.
Passage checking by an optical sensor is also performed in the sorting line at the delivery site, and if the whole is made of a transparent or translucent synthetic resin material alone, light will pass through the transport container Therefore, it may be erroneously determined that “the container has not passed” even though the container has passed. For example, the collection at the end of the line is crowded,
Even if the next container should not be sent, the containers are sent one after another, which hinders the collection operation.

In general, an optical sensor is composed of a light emitting device and a light receiving device which are provided with a line interposed therebetween. When light from the light emitting device is received by the light receiving device, the light sensor is placed in a container. If there is no passage and the light receiver does not receive light, it is recognized as passing through the container. When the next container should not be sent because the collection at the end of the line is congested, the line is stopped when the container is recognized by this optical sensor so that the collection operation can be performed efficiently. It is. Therefore, if such a transport container is formed of a transparent or translucent material that transmits light, the above-described operation cannot be performed reliably.

Therefore, the present inventor has proposed a method for making it possible to easily visually recognize the presence or absence of the remaining contents from the outside, and to make it possible to surely recognize the contents by the optical sensor. As a result of various studies,
The present invention has been completed.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and the problems to be solved are as follows.
An object of the present invention is to provide a transport container that allows the presence or absence of remaining contents to be easily visually recognized from the outside and that can be reliably recognized by an optical sensor.

That is, the object of the present invention is to
It can be easily manufactured using a transparent or translucent synthetic resin material and a colored synthetic resin material. It can also be stacked or nested, making it easy to see the inside of the device. Therefore, it is an object of the present invention to provide a transport container 10 that does not cause erroneous recognition by a simple configuration.

[0009]

Means for Solving the Problems In order to solve the above problems, means adopted by the present invention will be described with reference numerals used in the following description of embodiments.
"Synthetic resin is used as a material, and is a transport container 10 that is integrated in a rectangular box shape having an upper opening and is stackable only or stackable and nestable. At least one of the side walls 11 or 12 thereof, A transport container 10 "characterized by forming a transparent or translucent portion 10b while leaving an opaque portion 10a on a part or the entire surface.

That is, the transport container 10 according to the first aspect is made of a synthetic resin and is integrated in a rectangular box shape having an open upper portion. In the long side wall 12, as shown in FIG. 1 and the like, a transparent or translucent portion 10b is formed leaving a part of the opaque portion 10a. Specifically, the transport container 10 of the embodiment shown in FIGS.
The transparent or translucent portion 10b is formed only at the substantially central portion of the long side wall 12, which is the front portion, and the rest is made the opaque portion 10a. Of course,
Both the transparent portion 10b and the opaque portion 10a may be formed on other short side walls 11 and long side walls 12, which means "at least one side wall".

The opaque portion 10a of the transport container 10
Is the part that blocks the transmission of light by the optical sensor,
When the opaque portion 10a passes between the optical sensors, the passage of the transport container 10 is confirmed. For this reason, the portion where the opaque portion 10a is to be formed may vary depending on the installation position of the optical sensor, but is on a straight line connecting the light emitting device and the light receiving device of the optical sensor. The size and area of the opaque portion 10a are as follows:
It is related to the speed of the conveyor on which the transport container 10 is conveyed, and the light transmission time that can be sensed by the optical sensor. In the minimum case, a spot-like shape that can block light transmission is considered. .

Further, in order for the passage of the transport container 10 placed on the conveyor to be detected by the optical sensor, the position of the opaque portion 10a with respect to the transport container 10 must be at least one short side wall 11 or Long side wall 1
2 is sufficient. Because at least one short side wall 1
This is because if the opaque portion 10a formed on one or the long side wall 12 passes between the optical sensors, the detection by the optical sensor is performed as the passage of the transport container 10.

On the other hand, it is preferable that the transparent or translucent portion 10b of the transport container 10 occupies as much area as possible. This is because it is necessary to easily and surely view the inside of the transport container 10 through the transparent or translucent portion 10b. In that sense, it makes the most sense to form all but the opaque portion 10a with this transparent or translucent portion 10b.

For example, the transparent or translucent portion 10b
As shown in FIG. 1, the transport container 1
It is reasonable to make it the front of 0, that is, just the center of one long side wall 12. Then, since the opaque portion 10a located around the transparent or translucent portion 10b is located on the entire length of the transport container 10 in the vertical direction, it is necessary to severely restrict the installation position of the optical sensor. Because there is no. Further, the transparent or translucent portion 10b shown in FIG. 1 is configured to be about half of the entire surface area of the long side wall 12. Thereby, the transparent or translucent portion 10b is made to have a sufficient size so that the inside of the transport container 10 can be sufficiently viewed not only from the front but also from an oblique direction. You can do it.

As shown in FIG. 4, the transparent or translucent portion 10b is formed at one long side wall 1 as shown in FIG.
2 may be implemented at the upper center. In this way, when a large number of the transport containers 10 are nested, the transparent or translucent portion is located on the upper portion of the transport container 10, so that the residue can be passed through the overlapping transport containers 10. The presence or absence of the presence can be surely visually recognized from the outside.

As described above, the transport container 10 having the opaque portion 10a and the transparent or translucent portion 10b can be integrally molded with a synthetic resin by various methods as shown in FIGS. Can be. In the example shown in FIG. 6, a so-called “core back molding method” is used by using different types of synthetic resin materials.
Shows the case of manufacturing with. That is, the opaque portion 10
a or the core is inserted into the portion of the molding die corresponding to the transparent or translucent portion 10b, injection molding is performed around the core with the corresponding resin, and immediately thereafter, the core is backed,
The resin is molded by injecting a resin corresponding to the transparent or translucent portion 10b or the opaque portion 10a into the space.

In the method shown in FIG. 7, an opening is formed in a portion corresponding to the opaque portion 10a satisfying the above condition, and a separately formed transparent or translucent portion 10b is formed in this opening. It is attached integrally with an adhesive or a rivet. The method shown in FIG.
In this case, a so-called “insert molding method” is shown. In this case, the transparent or translucent portion 10b separately molded is used.
Is formed by injection molding a synthetic resin material to be the opaque portion 10a. In this case, as shown in FIG.
The integrated pin 14 may be formed in advance on the transparent or translucent portion 10b. When the opaque portion 10a is insert-molded around the transparent or translucent portion 10b, the integrated pin 14 integrates the two.

In order to solve the above-mentioned problem, a means adopted in the invention according to claim 2 is a method similar to that described above, wherein "a synthetic resin is used as a material, and a rectangular box having an upper opening is integrated. A transport container 10 capable of stacking only or stacking and nesting. When viewed from a plane, one half of one diagonal line 10c is a transparent or translucent portion 10b, and the other half is an opaque portion. 10a, which is a transport container.
0 ".

That is, the transport container 10 according to claim 2
Then, as shown in FIG. 5, when this is viewed from a plane,
One half of one diagonal line 10c is transparent or translucent part 1.
0b, and the other half is an opaque portion 10a.

Thus, in the transport container 10, a half opaque portion 10a secures a portion capable of sufficiently responding to the optical sensor, and, of course, the transparent or translucent portion 10b allows sufficient visibility from the outside. You can do it. Such a transport container 10 is described in FIG.
The molding is performed by various methods shown in FIGS.

As described above, any of the above-mentioned transport containers 10 has a transparent or translucent portion 10b formed on the front side as shown in FIG. In other words, when a plurality of the transport containers 10 are stacked as they are, it is made visible from the front whether or not the stored items are packed inside.

Further, the transport container 10 can be nested, that is, stacked in a state of being rotated by 180 degrees with respect to each other when there is no content. Residual documents are obtained from the transparent or translucent portion 10b of one transport container 10.
The opaque portion 10a of the other transport container 10, which is located inside, becomes a background and can be seen well. This is from one long side wall 12 side, but it goes without saying that the same applies to the opposite side.

Therefore, these transport containers 10 can easily perform nesting or stacking while easily checking from outside whether contents are left therein.

[0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a first embodiment of a transport container according to the present invention; FIG. 5 is a front view of the transport container 10 according to the first embodiment, and FIG. 5 is a plan view of the transport container 10 according to the second embodiment.

The transport container 10 shown in FIGS. 1 to 3 has a substantially rectangular planar shape as shown in FIG. 5, for example, so that multi-stage stacking or nesting can be easily performed. It is. As shown in FIG. 1, a transparent or translucent portion 10b is formed substantially at the center of one long side wall 12 of the transport container 10, and the entire periphery thereof is an opaque portion 10a. is there. The formation of the transparent or translucent portion 10b may be performed in a state as shown in FIG.

The transport container 10 of this embodiment has legs 13 on each short side wall 11 as shown in FIG. 2 or FIG. 3, but as shown in FIG. On the outer periphery of is formed an upper surface flange surrounding the upper surface. The upper surface flange forms the uppermost surface of the transport container 10. Note that, in the transport container 10 of the present embodiment, the inside of the lower surface of the upper flange is used as a handle portion, and by using this handle portion, the transport container 10 alone can be easily carried by hand. is there.

In the case of the present embodiment, each leg 13 is integrally formed on the outer surface of each short side wall 11 as shown in FIGS. 2 and 3, and formed on the inner surface of the short side wall 11. In order to facilitate insertion into each of the leg storage portions, the side surfaces are formed so as to be inclined such that the lower end portion is smaller than the upper end portion. In addition, since each leg 13 of the present embodiment is such that nesting using the same is such that about half of the upper transport container 10 enters the lower transport container 10, The outer shape of the upper end is made larger than the insertion opening of the leg storage section shown in FIG.

As shown in FIGS. 2 and 3, each leg 13 and the leg storage portion in which it is stored are formed in a pair on each short side wall 11, and the upper end thereof is opened as an insertion port. The dimensions between the leg 13 and the leg storage section on each short side wall 11 are changed. This is because the nesting is performed by using the leg portions 13 and the leg storage portions having the same dimensional interval, and the stacking can be performed by using the leg portions 13 and the leg storage portions having different intervals. This point is the same as that employed in a conventional transport container of this kind.

In the transport container 10 of the present embodiment, a card insertion portion is formed on the long side wall 12 and the like, and the name of an article to be stored in the transport container 10 is provided in the card insertion portion. A card indicating a destination or the like is to be inserted.

As shown in FIG. 5, the transport container 10 shown in FIG. 5 has one diagonal line 1 when viewed from a plane.
One half of Oc is a transparent or translucent portion 10b, and the other half is an opaque portion 10a. As a result, in the transport container 10, the half opaque portion 10a secures a portion that can sufficiently respond to the optical sensor, and the transparent or translucent portion 10b
By doing so, it is possible to perform sufficient visual recognition from the outside.

[0031]

As described in detail above, first, in the invention according to claim 1, as exemplified in the above embodiment,
"Synthetic resin is used as a material, and is a transport container 10 that is integrated in a rectangular box shape having an upper opening and is stackable only or stackable and nestable. At least one of the side walls 11 or 12 thereof, The transparent or translucent portion 10b is formed while partially leaving the opaque portion 10a ". In the invention according to claim 2," a substantially box-shaped rectangular box having an upper opening using a synthetic resin as a material. And the stacking only, or a stacking and nesting enabled transport container 10 when viewed from a plane,
One half of one diagonal line 10c is transparent or translucent part 1.
0b, and the other half is an opaque portion 10a ", which has a feature in each configuration. This makes it easy to use a transparent or translucent synthetic resin material and a colored synthetic resin material. It is possible to provide a transport container 10 which can be manufactured, stacking or nesting can be easily performed, the interior can be easily recognized, and erroneous recognition does not occur by an optical sensor, with a simple configuration. is there.

[Brief description of the drawings]

FIG. 1 is a front view of a transport container according to claim 1.

FIG. 2 is a left side view of the same.

FIG. 3 is a right side view of the same.

FIG. 4 is a front view of another transport container according to the first embodiment.

FIG. 5 is a plan view of the transport container according to claim 2;

FIG. 6 is a partially enlarged sectional view showing an example in the case of manufacturing the transport container according to each claim.

FIG. 7 is a partially enlarged sectional view showing another example of manufacturing the transport container according to each claim.

FIG. 8 is a partially enlarged sectional view showing still another example of manufacturing the transport container according to each claim.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Transport container 10a Opaque part 10b Transparent or translucent part 10c Diagonal line 11 Short side wall 11 12 Long side wall 12 13 Leg part 13 14 Integrated pin 14

Claims (2)

[Claims] 1. A transport container which is made of a synthetic resin and is integrated into a substantially rectangular box having an opening at an upper portion, and is capable of stacking only or stacking and nesting. A transport container characterized in that a transparent or translucent part is formed while leaving an opaque part in a part. 2. A transport container which is made of synthetic resin and is integrated into a substantially rectangular box having an open top to enable stacking only or stacking and nesting. A transport container characterized in that one half of one diagonal is a transparent or translucent portion and the other half is an opaque portion.