JPH08133290A - Dust proof container and cover - Google Patents

Abstract

PURPOSE: To prevent dirt which sticks to the bottom of an upper container, from falling in the space among stacked containers and prevent pollusion of the contained articles. CONSTITUTION: Upper and lower flaxes 15, 16 are provided at the upper and lower outer peripheries of a container body 11 and a reinforcing rib 17 is provided at the lower face of the bottom of container body 11. The lower flange 16 of the upper container 10 is placed on the upper flange 15 of the lower container 10 to stack dust proof containers. The mounting face level of the lower flange 16 is protruded downward lower than the lower face level of the reinforcing rib 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dustproof container and a lid suitable for use in an environment where dust is not admixed.

[0002]

2. Description of the Related Art Conventionally, for example, a container for cassette tape or the like has upper and lower flanges on the upper and lower outer peripheral portions of the container body, reinforcing ribs on the bottom lower surface of the container body, and a lower flange on the upper container. It is often used by stacking the upper and lower containers by placing them on the upper flange of the side container.

The lid used as an accessory to the above-mentioned conventional container is provided with a lid flange on the outer peripheral portion of the lid body and a lid reinforcing rib on the lower surface of the lid body, and the lid flange of the lid is the upper flange of the container. It is placed on top of the container so that the lid can be attached to the container.

[0004]

In the conventional container and its lid, the reinforcing ribs provided on the lower surface of the bottom of the container body or the lid reinforcing ribs provided on the lower surface of the lid body are brought into contact with the floor, the conveyor or the like. And can be placed on those floors, conveyors, etc. For this reason, the reinforcing ribs of the container and the lid reinforcing ribs of the lid are susceptible to dirt.

Therefore, when the upper and lower containers are stacked, dirt adhering to the reinforcing ribs at the bottom of the upper container may drop into the storage space of the lower container and contaminate the articles in the storage space. Further, even when the lid is attached to the container, the dirt attached to the lid reinforcing ribs on the lower surface of the lid may fall into the storage space of the container and contaminate the articles in the storage space.

Further, when the stacked container groups are conveyed by a roller conveyor or the like, the reinforcing ribs at the bottom of the lower container repeatedly collide with the irregularities of the roller conveyor or the like, and the conveying property is poor.

It is an object of the present invention to prevent dirt adhering to the bottom of the upper container from dropping into the storage space of stacked containers and to prevent the stored articles from being contaminated.

Another object of the present invention is to prevent the dirt attached to the lower surface of the lid from falling into the storage space of the container to which the lid is attached and to prevent the stored articles from being contaminated.

Another object of the present invention is to improve the transportability of a container by a roller conveyor or the like.

[0010]

According to the present invention, the upper and lower outer peripheral portions of the container body are provided with upper and lower flanges, and the lower surface of the bottom portion of the container body is provided with reinforcing ribs. In a dustproof container in which the upper and lower containers can be stacked in layers by placing the above on the upper flange of the lower container, and the lower flange mounting surface level is projected below the lower surface level of the reinforcing rib. It is the one.

The present invention according to claim 2 is the same as the invention according to claim 1, wherein the upper flange is locked to the inner peripheral portion of the lower flange of the upper container placed on the upper flange. A positioning rib that can be used is provided.

According to a third aspect of the present invention, in addition to the second aspect of the present invention, the inner peripheral portion of the lower flange further comprises:
A positioning notch for engaging the positioning rib provided on the upper flange of the lower container stacked in layers under the lower flange is provided, and the positioning notch is engaged with the rising surface of the positioning rib closer to the upper flange. It is the one.

The present invention according to claim 4 is used by accommodating the dustproof container according to claim 1, wherein a lid flange is provided on the outer peripheral portion of the lid body, and a lid reinforcing rib is provided on the lower surface of the lid body. A lid that can be mounted on the container by placing the lid flange of the lid on the upper flange of the container, the mounting surface level of the lid flange being lower than the lower surface level of the lid reinforcing rib. It is designed to stick out.

According to a fifth aspect of the present invention, in addition to the fourth aspect of the present invention, the inner peripheral portion of the lid flange further comprises:
The positioning rib provided on the upper flange of the container can be engaged with the positioning rib.

The present invention according to claim 6 is the same as the invention according to claim 5, further comprising:
A positioning notch for engaging the positioning rib provided on the upper flange of the container to which the lid flange is attached is provided, and the positioning notch engages with the rising surface of the positioning rib near the upper flange. is there.

[0016]

According to the present invention described in claim 1, the following effects are obtained. The mounting surface level of the lower flange of the container projects below the lower surface level of the reinforcing ribs. Therefore, when the container is placed on the floor, conveyor, etc., it is only the lower flange on the outer periphery of the container body that contacts the floor, conveyor etc., and the reinforcing ribs do not contact the floor, conveyor etc. Absent. Therefore, when stacking the upper and lower containers,
The bottom of the upper container, which is located above the storage space of the lower container, does not have any dirt attached, and does not cause the dirt to fall into the storage space of the lower container.

When the stacked containers are conveyed by a roller conveyor or the like, the wide lower flange provided on the outer peripheral portion of the lower container slides on the roller conveyor,
Transportability can be improved.

The present invention according to claim 2 has the following effects. When the upper and lower containers are stacked, the positioning rib provided on the upper flange of the lower container for positioning the upper and lower containers is locked to the inner peripheral portion of the lower flange of the upper container. Therefore, the lower flange of the upper container is separated from the storage space of the lower container by the positioning ribs, and dirt adhering to the lower flange that comes into contact with the floor, conveyor, etc. enters the storage space of the lower container. Surely prevent that.

The present invention according to claim 3 has the following effects. When the upper and lower containers are stacked, the positioning notch provided in the inner peripheral portion of the lower flange of the upper container locks with the rising surface of the positioning rib near the upper flange (on the side opposite the storage space). Therefore, even if abrasion powder is generated by rubbing between the positioning rib and the positioning notch, the abrasion powder is partitioned by the positioning rib with respect to the storage space of the lower container and does not enter the storage space.

The present invention according to claim 4 has the following actions. The mounting surface level of the lid flange of the lid projects below the lower surface level of the lid reinforcing rib. Therefore, when the lid is placed on the floor, the conveyor, etc., only the lid flange on the outer peripheral portion of the lid body comes into contact with the floor, the conveyor, etc., and the lid reinforcing rib does not come into contact with the floor, the conveyor, etc. No dirt. Therefore, when the lid is attached to the container, the lower surface of the lid located above the storage space of the container does not have any dirt attached thereto, and the dirt is not dropped in the storage space of the container.

The present invention according to claim 5 has the following effects. When the lid is attached to the container, a positioning rib provided on the upper flange of the container for positioning the lid engages with an inner peripheral portion of the lid flange of the lid. Therefore, the lid flange of the lid is partitioned by the positioning rib with respect to the container storage space, and it is possible to reliably prevent dirt adhering to the lid flange that comes into contact with the floor, the conveyor, or the like from entering the container storage space.

The present invention according to claim 6 has the following actions. When the lid is attached to the container, the positioning notch provided on the inner peripheral portion of the lid flange of the lid engages with the rising surface of the positioning rib near the upper flange (opposite to the storage space). Therefore, even if abrasion powder is generated due to rubbing between the positioning rib and the positioning notch, the abrasion powder is partitioned by the positioning rib with respect to the storage space of the container and does not enter the storage space.

[0023]

1 is a perspective view showing a container, FIG. 2 is a perspective view showing a lid, FIG. 3 is a perspective view showing a state where a lid is attached to a container, and FIG. 4 is a perspective view showing a stacked state of containers. 5 is a perspective view showing a state in which the lid is attached to the stacking container, FIG. 6 is a plan view showing the container, FIG. 7 is a side view showing the container, and FIG. 8 is a partial sectional view taken along line VIII-VIII of FIG. Figure, Figure 9 is Figure 6
10 is a sectional view taken along line IX-IX of FIG. 10, FIG. 10 is a partial sectional view taken along line XX of FIG. 6, FIG. 11 is a plan view showing a lid, and FIG.
Side view, FIG. 13 is a cross-sectional view taken along line XIII-XIII of FIG. 11, FIG. 14 is a schematic view showing the dustproof structure of the container, and FIG.
Is a schematic diagram showing a dustproof structure of a lid, FIG. 16 is a schematic diagram showing a product type discrimination structure of a container, FIG. 17 is a schematic diagram showing a stacking procedure, and FIG. 18 is a schematic diagram showing a stacking procedure.

The dustproof container 10 shown in FIG. 5 is used, for example, in a cassette tape assembly line, and an article 1 such as a cassette tape can be stored in a storage space 12 of a container body 11. At this time, the container 10 is shown in FIG.
As shown in FIG. 10, a plurality of ridges 13 are arranged in parallel inside the container body 11, and protrusions 14 are provided at a plurality of positions along each ridge 13 at regular intervals. Each of the articles 1 can be stored vertically in the article storage portion 12A defined by the protrusion 14.

As shown in FIGS. 1 and 6 to 10, the container 10 is provided with upper and lower flanges 15 and 16 on the upper and lower outer peripheral portions of the container body 11, and a reinforcing rib 17 is formed on the lower surface of the bottom of the container body 11. The lower flange 16 of the upper container 10 is placed on the upper flange 15 of the lower container 10 so that the upper and lower containers 10 and 10 can be stacked (FIG. 4).

The lid 30 is used as an accessory to the container 10. As shown in FIGS. 2 and 11 to 13, a lid flange 32 is provided on the outer peripheral portion of the lid body 31, and a lid reinforcement is provided on the lower surface of the lid body 31. A rib 33 is provided, and the lid flange 32 is placed on the upper flange 15 of the container 10 so that the lid 30 can be attached to the container 10 (FIG. 3). In addition, FIG.
It shows a state in which a lid 30 is attached to the uppermost container 10 of the stacked container group 10A.

Hereinafter, (A) the dustproof structure of the container 10 and the lid 30, (B) the product type discrimination structure of the container 10, (C) the container 1
A stacking / unstacking method of 0 and a method of attaching / removing the lid 30 will be described.

(A) Dustproof Structure of Container 10 and Lid 30 (A-1) Dustproof Structure of Container 10 As shown in FIGS. 8 to 10, the container 10 has a mounting surface level of the lower flange 16 of a reinforcing rib 17. It projects below the bottom level. That is, when the container 10 is placed on the floor, the conveyor, etc., only the lower flange 16 of the outer peripheral portion of the container body 11 contacts the floor, the conveyor, etc.
7 does not come into contact with the floor, conveyor, etc. and does not become dirty (FIG. 14 (B)).

The container 10 is shown in FIGS. 6 and 8 to 1.
As shown in 0, the upper flange 15
Positioning ribs 21 that can be engaged with the inner peripheral portion of the lower flange 16 of the upper container 10 placed on the above are provided in an endless circular shape. When the upper and lower containers 10 and 10 are stacked, the positioning ribs 21 are engaged with the inner peripheral portion of the lower flange 16 of the upper container 10 to perform a positioning function for stacking, and at the same time, lower the lower flange 16 of the upper container 10 downward. It serves as a partition that shuts off the storage space 12 of the side container 10. This partitioning function prevents dirt adhering to the lower flange 16 coming into contact with the floor, the conveyor, etc. from entering the storage space 12 of the lower container 10 (FIG. 14 (B)).

The container 10 is, as shown in FIG.
Positioning notches 22 with which the positioning ribs 21 provided on the upper flange 15 of the lower container 10 stacked below the lower flange 16 are engaged are provided at a plurality of positions on the inner circumference of the lower flange 16. The positioning notch 22 is set so as to be locked by coming into contact with the rising surface of the positioning rib 21 close to the upper flange 15 (on the side opposite to the storage space 12) (FIG. 14 (C)). Positioning rib 21
Even if abrasion powder is generated by rubbing of the positioning notch 22, the abrasion powder is partitioned by the positioning rib 21 with respect to the storage space 12 of the lower container 10 to prevent the abrasion powder from entering the storage space 12.

(A-2) Dust-proof structure of the lid 30 The lid 30 has a lid flange 32 as shown in FIGS.
The mounting surface level of the is protruding below the lower surface level of the lid reinforcing rib 33. That is, when the lid 30 is placed on the floor, the conveyor, etc., only the lid flange 32 on the outer peripheral portion of the lid body 31 contacts the floor, the conveyor, etc., and the lid reinforcing rib 33 does not contact the floor, the conveyor, etc. No dirt (Fig. 15)
(B)).

Further, as shown in FIGS. 11 to 13, the lid 30 is constructed so that the inner peripheral portion of the lid flange 32 can be engaged with the above-mentioned positioning rib 21 provided on the upper flange 15 of the container 10. Has been done. The positioning rib 21 has a lid 3
When 0 is attached to the container 10, it is locked to the inner peripheral portion of the lid flange 32 of the lid 30 to perform the positioning function of the lid 30, and at the same time, the lid flange 32 of the lid 30 with respect to the storage space 12 of the container 10. It becomes a partition to shut off. This partitioning function prevents dirt adhering to the lid flange 32 coming into contact with the floor, the conveyor, etc. from entering the storage space 12 of the container 10 (FIG. 15 (B)).

Further, as shown in FIG. 13, the lid 30 has an upper flange 15 of the container 10 to which the lid flange 32 is attached at each of a plurality of positions on the inner peripheral portion of the lid flange 32.
A positioning notch 34 with which the positioning rib 21 provided in the above is locked. The positioning notch 34 is set so as to engage with the rising surface of the positioning rib 21 near the upper flange 15 (opposite to the storage space 12) (FIG. 15).
(C)). Even if abrasion powder is generated due to the rubbing of the positioning rib 21 and the positioning notch 34, the abrasion powder is partitioned by the positioning rib 21 with respect to the storage space 12 of the container 10 to prevent the abrasion powder from entering the storage space 12. .

The lid 30 has a positioning rib 30A extending along the outer periphery of the upper surface thereof. The positioning rib 30A is fitted with another lid 30 which is superposed on the lid 30, or the positioning rib 30A is placed on the lid 30. It is used for fitting with the container 10 placed on the substrate 10 and prevents them from being displaced when they are stacked (FIG. 12).

Therefore, the dustproof structure of the container 10 and the lid 30 has the following effects. The mounting surface level of the lower flange 16 of the container 10 projects below the lower surface level of the reinforcing ribs 17. Therefore, when the container 10 is placed on the floor, conveyor, etc.,
Only the lower flange 16 of the outer peripheral portion of the container body 11 contacts the floor, the conveyor, etc., and the reinforcing ribs 17 do not contact the floor, the conveyor, etc. and are not contaminated. Therefore, when the upper and lower containers 10 are stacked, the bottom portion of the upper container 10 located above the storage space 12 of the lower container 10 does not have any dirt, and the storage space 1 of the lower container 10
Does not invite dirt to fall on 2.

FIG. 16 shows the stacked container group 10A.
As shown in (4), when it is conveyed by the roller conveyor 50 or the like, the wide lower flange 16 provided on the outer peripheral portion of the lower container 10 slides on the roller conveyor 50, and the conveyability can be improved.

When the upper and lower containers 10 are stacked,
Lower container 1 for positioning upper and lower containers 10
The positioning rib 21 provided on the upper flange 15 of the No. 0 engages with the inner peripheral portion of the lower flange 16 of the upper container 10. Therefore, the lower flange 16 of the upper container 10 is partitioned by the positioning rib 21 with respect to the storage space 12 of the lower container 10, and the dirt attached to the lower flange 16 that comes into contact with the floor, the conveyor, etc. 10 storage spaces 1
Make sure to prevent invasion of 2.

When the upper and lower containers 10 are stacked,
The positioning notch 22 provided on the inner peripheral portion of the lower flange 16 of the upper container 10 engages with the rising surface of the positioning rib 21 near the upper flange 15 (on the side opposite to the storage space). Therefore, even if abrasion powder is generated by the rubbing of the positioning rib 21 and the positioning notch 22, the abrasion powder is partitioned by the positioning rib 21 into the storage space 12 of the lower container 10 and may enter the storage space 12. Absent.

Since the upper and lower containers 10 are provided with the positioning ribs 21 and the positioning notches 22 described above, they can be stacked easily and are not easily collapsed after stacking, so that their handling properties can be improved.

Further, the packing form of the stacked container groups on the conveyor or the like is surely and easily aligned due to the presence of the positioning ribs 21 and the positioning notches 22 of the upper and lower containers 10. Therefore, it is not necessary that the packing alignment flap reaches the container position at the top of the stack (if the lower container is aligned, the upper container is also copied).

The mounting surface level of the lid flange 32 of the lid 30 projects downward from the lower surface level of the lid reinforcing rib 33. Therefore, when the lid 30 is placed on the floor, the conveyor, etc., only the lid flange 32 on the outer peripheral portion of the lid body 31 contacts the floor, the conveyor, etc., and the lid reinforcing rib 33 makes contact with the floor, the conveyor, etc. It does not get dirty. Therefore, lid 3
When 0 is attached to the container 10, the lower surface of the lid 30 located above the storage space 12 of the container 10 does not have any dirt attached, and the dirt of the storage space 12 of the container 10 does not drop.

When the lid 30 is attached to the container 10,
Upper flange 1 of container 10 for positioning lid 30
5, the positioning rib 21 provided on the lid 5 is provided on the lid flange 3 of the lid 30.
2 Lock on the inner circumference. Therefore, the lid flange 3 of the lid 30
2 is a positioning rib 2 for the storage space 12 of the container 10.
It is partitioned by 1 and reliably prevents dirt adhering to the lid flange 32 coming into contact with the floor, the conveyor, etc. from entering the storage space 12 of the container 10.

When the lid 30 is attached to the container 10,
Positioning notch 3 provided on the inner peripheral portion of the lid flange 32 of the lid 30
4 engages with the rising surface of the positioning rib 21 near the upper flange 15 (on the side opposite to the storage space). Therefore, even if abrasion powder is generated by the rubbing of the positioning rib 21 and the positioning notch 34, the abrasion powder is partitioned by the positioning rib 21 with respect to the storage space 12 of the container 10 and does not enter the storage space 12. .

(B) Type determination structure of the container 10 As shown in FIGS. 1 to 5, the container 10 serves as a type determination means for the stored article 1 at a specific position on the outer peripheral portion of the container body 11 corresponding to the type. A light penetrating portion is provided. Specifically, any of the hole- or groove-shaped first to fifth light penetrating portions 41A to 41E is located at a single position selected from the first to fifth positions defined on the upper and lower flanges 15 and 16 of the container 10. One of them is notched (FIG. 16 (B)). That is, if the article 1 stored in the container 10 is of the first type, the first light penetrating portion 41A is provided at the first position, and if the article 1 is contained in the container 10, the second light penetrating portion 41B is provided at the second position. It's like ...

On the other hand, as shown in FIG. 16, a product classification position is set on the container transport conveyor 50 such as a cassette assembly line. At this product classification position, a stopper 51, four front and rear packing pattern alignment flaps 52, left and right. Two packaging alignment flaps 53 are provided. Then, the stacked container groups 10A are stopped by a stopper 51 protruding from the lower side of the conveyor 50, sandwiched in the front and back by a packing shape alignment flap 52 to correct the packing shape in the front-rear direction, and a packing shape alignment flap 53. The left and right are sandwiched by the left and right sides, and the packing form in the left and right direction is corrected, and as a result, they are accurately positioned at the product type discrimination position. The stopper 51 and the packing shape alignment flap 53 linearly move between the standby position and the working position by the cylinder,
The packing alignment flap 52 is moved between the standby position and the working position by the rotary actuator.

Further, on the side of the type discrimination position on the conveyor 50, the container group 10 positioned at the type discrimination position is located.
Optical penetration detection devices 54 are provided on both upper and lower sides of the outer peripheral portion of A in the stacking direction. The light penetration detector 54 is
Specifically, the first to fifth five projectors 54A to 54E are arranged above one side of the upper flange 15 of the uppermost container 10 that constitutes the container group 10A, and the lower flange of the lowermost container 10 is arranged. The first to fifth five light receivers 55A to 55E corresponding to the light projectors 54A to 54E are arranged below one side of 16 (below the conveyor 50). The first light projector 54A and the light receiver 55A correspond to the first positions (where the first light penetrating portion 41A is provided) defined on the upper and lower flanges 15 and 16 of the container 10, and the second light
The light projector 54B and the light receiver 55B correspond to the second positions (where the second light penetrating portion 41B is provided) defined on the upper and lower flanges 15 and 16 of the container 10.

Therefore, at the product type discrimination position on the conveyor 50, the light penetrating portion (first position) of the specific position (any one of the first position to the fifth position) of each container 10 forming the container group 10A. Any one of the light penetration portion 41A to the fifth light penetration portion 41E of the light penetration portion 54A to 54E and each light receiver 55 of the light penetration detection device 54.
Detected by A to 55E. Then, any one of the light projectors 54A to 54E and the light receiver 55 of the light penetration detection device 54.
On the condition that A to 55E detect the penetration of light, each container 10 has the corresponding light penetration portion (first light penetration portion 41A to fifth light penetration portion).
(Any one of the first to fifth positions) of any one of the light penetrating portions 41E of (1) to (5). judge.

The presence or absence of light penetration described above can be detected by the light penetration detection device 54 even if the lid 30 is attached to the containers 10 constituting the container group 10A.
The lid flange 32 of the lid 30 is provided with a translucent notch 35. The lid 30 includes the first to fifth light penetrating portions 41A to 4A on the upper flange 15 of the container 10 to which the lid 30 is attached.
The light-transmitting notch 3 has a wide area corresponding to the notch forming area 1E.
5 is formed so that it can be used for all types of containers 10 (FIGS. 3 and 5).

Further, in the container 10, holes or grooves are provided at all of the first to fifth positions defined on the flanges 15 and 16, and shutters etc. for opening and closing these five holes or grooves are provided. That is, using the single container 10, the above-described first to fifth light penetrating portions 41A to 41A are provided.
Any of E can be formed. That is, the same container 10 can be used for all types without preparing a dedicated container 10 for each of the first type to the fifth type.

Therefore, according to the product type discriminating structure of the container 10 as described above, there are the following actions. Container group 10
A is positioned at the product type discriminating position, and the light penetrating portions 41A to 41 at specific positions of the respective containers 10 constituting the container group 10A.
By detecting the presence or absence of light penetration in E by the light penetration detection device 54, when the light penetration detection device 54 detects the above-mentioned light penetration, the containers 10 constituting the container group 10A are of the same type, and The light penetration portion 41
It can be determined that the product type corresponds to the positions A to 41E.

Therefore, when determining the type of the container 10,
It is possible to improve the reliability of the system while reducing human work and simplifying the system.

At this time, if the container group 10A is a mixture of a plurality of different types of containers 10, the light penetration detecting device 54 does not detect light penetration, and therefore does not identify the kind of each container 10. Further, if the approach direction of the container group 10A with respect to the product type determination position on the conveyor 50 or the stacking direction of each container 10 within the container group 10A is not a predetermined standard direction, the container group 10A will only include containers 10 of the same product type. Even if it consists of
The light penetration detector 54 does not detect the penetration of light, and therefore does not identify the type of each container 10. Therefore, container group 1
It is possible to simultaneously determine whether or not the types of products are mixed in 0A, the transport direction of the container group 10A, and the stacking direction of each container 10 in the container group 10A.

Then, it is possible to know that the upper and lower containers 10, 10 are stacked in the same correct stacking direction by the light penetration detecting device 54 before the stacking step. If the stacking direction of the stacking containers 10, 10 is abnormal, the stacking can be stopped.
As a result, it is possible to know in advance whether disassembly is possible or prevent occurrence of collapse during disassembly.

Further, it can be confirmed by the optical penetration detecting device 54 that the upper and lower containers 10, 10 are stacked in the same correct stacking direction, that the upper and lower containers 10, 10 are stacked without a gap. Also, it is possible to check whether or not the dust prevention is achieved.

The container 10 has upper and lower flanges 15,
16 with upper and lower flanges 15, 1
It is preferable to provide the light penetrating portions 41A to 41E on both sides of the upper and lower flanges 1.
5 and 16 provided on only one side and the other flanges 15 and 16
May be provided with a light-transmitting notch (similar to the light-transmitting notch 35 of the lid 30) over a wide range including the notch forming range of the light penetrating portions 41A to 41E.

Further, a height discriminating means for the container group 10A may be provided beside the product discriminating position on the conveyor 50. By previously storing the relationship between the height of the container group 10A and the number of stacked containers, the number of stacked containers of the container group 10A can be recognized at the same time.

The method of discriminating the type of the container 10 contributes to simplification of the system and improvement of the reliability by simplifying the carrying-in procedure and the discharging procedure in an automated warehouse or the like that handles standardized articles.

The light penetration detecting means is not limited to the transmission type photoelectric sensor, but may be a reflection type photoelectric sensor.

(C) Stacking / disassembling method of the container 10 and attaching / removing method of the lid 30 As shown in FIG. 1, the container 10 has notches for handling on each side of the upper flange 15 of the container body 11. Two
There are two 3s each.

Further, the conveyor 5 such as a cassette assembly line
A lifter 61 is installed below the handling work position (stacking / disassembling position of the container 10 and attachment / detachment position of the lid 30) defined above 0, and a pair of both sides of the handling work position. Handling arms 62, 62
Is installed. The lifter 61 is the first cylinder 61A,
The second cylinder 61B moves up and down between the lower position of the conveyor 50 and the two-stage rising position of middle and high positions. The handling arm 62 is moved by the cylinder 62A between the lateral position of the container group 10A and the lower position of the flanges 15, 16 and 32 of the container 10 and the lid 30.

The procedures for stacking / disassembling the containers 10 and the procedure for attaching / removing the lid 30 will be described below. (C-1) Procedure for attaching the lid 30 The lid 30 is carried into the handling work position.

The lifter 61 is connected to the first cylinder 61A and the second cylinder 61A.
Cylinder 61B raises it to a higher position and lifts lid flange 32 of lid 30 above the handling arm level (level of handling arm 62).

The handling arm 62 is moved forward. Then, the lifter 61 is moved downward by the first cylinder 61A and the second cylinder 61B. As a result, the lid flange 32 of the lid 30 is carried by the handling arm 62.

The container 10 is carried into the handling work position, and the container 10 is positioned below the lid 30.

The lifter 61 is raised to the middle position by the first cylinder 61A and the container 10 is lifted. At this time,
In the container 10, the handling notch 23 of the upper flange 15 passes around the handling arm 62, so that the upper flange 15 of the container 10 is handled.
Of the lid 30, the lid flange 32 of the lid 30 is lifted to the upper flange 15 of the container 10 to be attached to the container 10.

The handling arm 62 is retracted. Then, the lifter 61 is raised to the higher position by the second cylinder 61B.

The handling arm 62 is moved forward. Subsequently, the lifter 61 is attached to the first cylinder 61A and the second cylinder 6
1B lowers to lower. As a result, the lower flange 16 of the container 10 to which the lid 30 is attached is carried by the handling arm 62.

(C-2) Stacking procedure of the container 10 (FIG. 17) The upper container 1 to which the lid 30 is attached by the above (C-1)
The lower flange 16 of 0 is carried by the handling arm 62.

The lower container 10 is carried into the handling work position, and the lower container 10 is positioned below the upper container 10 (FIG. 17 (A)).

The lifter 61 is raised to the middle position by the first cylinder 61A, and the lower container 10 is lifted. At this time, the lower container 10 is moved to the upper flange 15 above the handling arm 62 by the handling notch 23 of the upper flange 15 passing around the handling arm 62, and the upper container 10 is moved to the lower flange 16 thereof. Is the upper flange 15 of the lower container 10
And they are stacked and stacked (FIG. 17 (B)).

The handling arm 62 is retracted (FIG. 17C). Subsequently, the lifter 61 is attached to the second cylinder 61B.
Rises to a higher level (Fig. 17 (D)).

The handling arm 62 is advanced (FIG. 17 (E)). Subsequently, the lifter 61 is attached to the first cylinder 61
A, the second cylinder 61B moves downward. As a result, the container group 10A stacked as described above is carried by the handling arm 62 (FIG. 17 (F)).

The container group 10A has a predetermined number of containers 1
The above steps 1 to 3 are repeated until 0 is stacked. And
After stacking a predetermined number of stages, lifter 61 is moved to first cylinder 6
1A, the second cylinder 61B raises it to a higher position to carry the container group 10A, then the handling arm 62 is retracted, and then the lifter 61 is moved to the first cylinder 61A, the second cylinder 61A.
The container group 10A is transferred to the conveyor 50 by being lowered to the lower side by the cylinder 61B.

(C-3) Stepping out of the container 10 The container group 10A to which the lid 30 is attached is positioned at the handling work position (FIG. 18 (A)).

The lifter 61 is raised to the middle position by the first cylinder 61A, and the level between the upper and lower flanges of the lower container 10 is changed to the handling arm level (the handling arm 6).
2 level) (FIG. 18 (B)).

The handling arm 62 is moved forward to move the handling arm 62 from the side between the upper and lower flanges 15 and 16 of the lower container 10, between the upper and lower flanges 15 and 16 and to the handling notch 23 of the upper flange 15. Insert it downward (FIG. 18 (C)).

The lifter 61 is lowered by the first cylinder 61A, and the container group 10A is lowered with respect to the handling arm 62. This allows the lower container 1
0 is moved below the handling arm 62 by the handling notch 23 of the upper flange 15 passing around the handling arm 62, and the upper container 1
In the case of 0, the lower flange 16 is carried by the handling arm 62, and as a result, the lower container 10 is disassembled from the container group 10A (FIG. 18D).

The disassembled lower container 10 is transferred to the conveyor 50 and discharged (FIG. 18 (E)).

(C-4) Procedure for Removing Lid 30 After the steps of (C-3) are repeated to complete the stepping out of the container group 10A, the lid 61 is set by the lifter 61 set to the middle position by the first cylinder 61A. The level between the upper and lower flanges of the container 10 to which 30 is attached is matched with the level of the handling arm (level of the handling arm 62).

The handling arm 62 is moved forward to move the handling arm 62 to the upper and lower flanges 1 of the container 10.
From the side between 5 and 16, it is inserted between the upper and lower flanges 15 and 16 and below the handling notch 23 of the upper flange 15.

The lifter 61 is lowered by the first cylinder 61A, and the container 10 and the lid 30 are lowered with respect to the handling arm 62. As a result, the container 10 is moved below the handling arm 62 by the handling notch 23 of the upper flange 15 passing around the handling arm 62, and the lid 30 has its lid flange 32 carried by the handling arm 62.
Removed from container 10.

The container 10 from which the lid 30 has been removed is transferred to the conveyor 50 and discharged. After that, lifter 6
1 is raised to a higher position by the first cylinder 61A and the second cylinder 61B to carry the lid 30, and then the handling arm 62 is retracted, and then the lifter 61 is moved to the first cylinder 61A.
The lid 30 is transferred to the conveyor 50 by descending to the lower position by the A and the second cylinder 61B.

In the above (C-1) to (C-4), the lifter 61 and the handling arm 62 are the container 10 and the lid 30 provided around the handling work position on the conveyor 50.
Based on the discrimination result by the discriminating means, the automatic operation is performed in the above procedure.

Therefore, the handling method of the container 10 and the lid 30 described above has the following effects.

By providing the notch 23 for handling on the upper flange 15 of the container 10, a small and simple handling arm 62 is used to cover the container 30 with the lid 30.
Can be attached and detached, and the upper and lower containers 10 can be stacked and disassembled.

The containers 10 being stacked / unstacked are lifted and lowered by a predetermined stroke (approximately the same height as one step of the containers 10) by the lifter 61, and then carried by the handling arm 62. Therefore, it is possible to realize stacking / disassembling in multiple stages by using the lifter 61 having a constant small stroke. Further, the same mechanical device including the lifter 61 and the handling arm 62 can perform both stacking and disassembling operations of the containers 10.

The method of handling the container 10 and the lid 30 effectively contributes to the automatic transportation of the container 10 and labor saving thereof.

[0088]

As described above, according to the present invention, it is possible to prevent the dirt attached to the bottom of the upper container from dropping into the storage space of the stacked containers and prevent the contamination of the stored articles. . Further, according to the present invention, it is possible to prevent the dirt attached to the lower surface of the lid from dropping into the storage space of the container to which the lid is attached, and prevent the stored articles from being contaminated. Further, according to the present invention, the transportability of the container by the roller conveyor or the like can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a container.

FIG. 2 is a perspective view showing a lid.

FIG. 3 is a perspective view showing a state where a lid is attached to the container.

FIG. 4 is a perspective view showing a stacked state of containers.

FIG. 5 is a perspective view showing a state in which a lid is attached to the stacking container.

FIG. 6 is a plan view showing a container.

FIG. 7 is a side view showing a container.

FIG. 8 is a partial cross-sectional view taken along the line VIII-VIII of FIG.

FIG. 9 is a sectional view taken along the line IX-IX of FIG. 6;

10 is a partial cross-sectional view taken along the line XX of FIG.

FIG. 11 is a plan view showing a lid.

FIG. 12 is a side view of FIG. 11.

13 is a sectional view taken along line XIII-XIII in FIG.

FIG. 14 is a schematic view showing a dustproof structure of a container.

FIG. 15 is a schematic view showing a dustproof structure of a lid.

FIG. 16 is a schematic diagram showing a container on a roller conveyor.

FIG. 17 is a schematic diagram showing a stacking procedure.

FIG. 18 is a schematic diagram showing a step-out procedure.

[Explanation of symbols]

 10 Container 11 Container Body 15 Upper Flange 16 Lower Flange 17 Reinforcing Rib 21 Positioning Rib 22 Positioning Notch 30 Lid 31 Lid Main Body 32 Lid Flange 33 Lid Reinforcing Rib 34 Positioning Notch

Claims (6)

[Claims] 1. A container body is provided with upper and lower flanges on upper and lower outer peripheral portions thereof, and reinforcing ribs are provided on a lower surface of a bottom portion of the container body, and a lower flange of an upper container is placed on an upper flange of a lower container. A dustproof container capable of stacking upper and lower containers in a stacking manner, wherein a mounting surface level of the lower flange projects below a lower surface level of the reinforcing rib. 2. The dustproof container according to claim 1, wherein the upper flange is provided with a positioning rib capable of engaging with an inner peripheral portion of a lower flange of an upper container placed on the upper flange. 3. A positioning notch is provided on an inner peripheral portion of the lower flange, with which the positioning rib provided on the upper flange of a lower container stacked below the lower flange is locked. 3. The dustproof container according to claim 2, wherein the locking rib engages with the rising surface of the positioning rib near the upper flange. 4. The dust-proof container according to claim 1, which is used as an accessory, has a lid flange on an outer peripheral portion of the lid body, and a lid reinforcing rib on a lower surface of the lid body, and uses the lid flange of the lid as a container. A lid which is placed on the upper flange of the lid and can be attached to the container, and the lid surface of the lid flange protrudes below the lower surface level of the lid reinforcing rib. 5. The lid according to claim 4, wherein an inner peripheral portion of the lid flange can be engaged with the positioning rib provided on the upper flange of the container. 6. An inner peripheral portion of the lid flange is provided with a positioning notch with which the positioning rib provided on an upper flange of a container to which the lid flange is attached engages, and the positioning notch serves as a positioning rib. The lid according to claim 5, which engages with a rising surface near the upper flange.