CN112298834B

CN112298834B - Container, especially container for transporting goods

Info

Publication number: CN112298834B
Application number: CN202010072002.7A
Authority: CN
Inventors: 增永路人
Original assignee: Aichi Ken Ichi
Current assignee: Aichi Ken Ichi
Priority date: 2019-07-26
Filing date: 2020-01-21
Publication date: 2022-09-02
Anticipated expiration: 2040-01-21
Also published as: JP2021020689A; JP6786677B1; CN112298834A

Abstract

The invention provides a container which can easily and safely discharge the loaded and stored transported objects, especially powder. The container (1) of the present invention has an opening/closing door (5b) which is connected to a rear end side in a rotatable manner and opens and closes in an up-down direction, the opening/closing door (5b) is a lower part (5b) of an upper part (5a) and a lower part (5b) which are formed by vertically dividing a side wall (5) on the rear end side of the container (1), and the side wall (5) on the rear end side is configured in such a manner that, in a state where the opening/closing door (5b) closes the opening on the rear end side, a contact or engagement part of the upper part (5a) and the lower part (5b) is positioned more inward than an upper end part of the upper part (5a) and a lower end part of the lower part (5b), and thereby, in a side view, the container is in a Japanese pseudonymous form of "く".

Description

Container for transporting goods

Technical Field

The present invention relates to a container.

And more particularly, to a container capable of easily and safely discharging a loaded and stored object to be conveyed, particularly, powder or granular material.

Background

Conventionally, as a method for conveying a powder or granule such as a wooden pellet, there is a method for conveying a powder or granule by a bulk container (bulk container) using a box-shaped container.

Such bulk containers are transported, for example, by installing an inner bag in a box container mounted on a vehicle, filling the inner bag with a powder or granular material, transporting the powder or granular material, mounting the box container on a loading platform having a tilting device at a destination, tilting the box container, and discharging the powder or granular material from a powder or granular material discharge port provided at a position that becomes a lower end of the inner bag when tilted.

An example of such a container is disclosed in patent document 1.

For example, japanese unexamined patent publication No. 63-131992 (patent document 1) proposes a bulk container that can smoothly discharge cargoes, and when the cargoes are discharged, the cargo can be safely discharged without worrying about the cargoes spilling from the side.

The bulk container is provided with an opening and closing door, the lower end of the opening and closing door is fixed below the rear plate in a freely rotating way,

an end of a freely reelable rope (wire) is fixed above the opening and closing door by a winch,

canvas for preventing the goods from being scattered is arranged between the side part of the opening/closing door and the corresponding side part of the opening part,

and a guide plate, the lower end of which is fixed on the opening and closing door side of the floor part in a freely rotating way, when the opening and closing door is opened horizontally, the guide plate is erected between the inner side surface of the opening and closing door and the floor surface.

Documents of the prior art

Patent literature

Patent document 1: japanese Kokai Sho 63-131992 (utility model registration claims, figures 1-3)

Disclosure of Invention

Problems to be solved by the invention

A box container for transporting powder such as a conventional bulk container requires a rear opening/closing door to be manually opened and closed.

Thus, there is a problem in terms of safety.

The bulk container described in patent document 1 is configured to open and close the opening and closing door by unwinding and winding a rope by a winch provided above the opening and closing door.

Therefore, when the opening/closing door is opened/closed, the winch needs to be operated, and therefore, the opening/closing door may not be smoothly and easily opened/closed.

In view of the above-described situation, the present invention is intended to provide a container that can easily and safely discharge a loaded and stored object to be conveyed, particularly, powder or granular material.

Means for solving the problems

The invention described in claim 1 is a container having an opening/closing door rotatably connected to a rear end side and opened and closed in an up-down direction,

the container is characterized in that it is provided with a container,

the opening and closing door is a lower part of an upper part and a lower part which are formed by vertically dividing a side wall at the rear end side of the container,

the rear-end side wall is configured such that, in a state where the opening/closing door closes the rear-end side opening, the contact or engagement portion between the upper portion and the lower portion is located inward of the upper end portion of the upper portion and the lower end portion of the lower portion, and is formed in a japanese kana "く" shape in side view.

According to the container set forth in claim 1,

the invention described in claim 2 of the present invention is characterized in that,

the angle of inclination of the lower part is 100-140 ° relative to the horizontal plane.

According to the container described in

claim

1 or 2,

the invention according to claim 3 of the present invention is characterized in that,

the angle of inclination of the upper portion is 70 to 80 ° with respect to the horizontal plane.

The container according to any one of claims 1 to 3,

the invention according to claim 4 of the present invention is characterized in that,

the ratio of the upper and lower lengths of the upper part to the lower length of the lower part is 1: 1-3: 1.

the container according to any one of claims 1 to 4,

the invention according to claim 5 of the present invention is characterized in that,

the container has a locking unit for locking the closing of the opening and closing door,

the lock unit includes a lock main body integrally formed of a band-shaped plate material,

the lock body is configured such that one end side in the short-side direction thereof is in contact with one end portion of the opening/closing door and holds the one end portion of the opening/closing door, and the other end side in the short-side direction thereof has a bearing through which a pivot shaft for swinging is inserted.

According to the container as set forth in claim 5,

the invention according to claim 6 of the present invention is characterized in that,

the locking unit is provided with a mass adjusting unit at a predetermined position, and is configured to swing backward when the container is tilted at a predetermined angle.

The container according to any one of claims 1 to 6,

the invention according to claim 7 of the present invention is characterized in that,

an opening for inputting the transported object is formed on the upper surface wall of the container,

a diffusing member is provided at the periphery of the opening portion, and the diffusing member is in a shape of Japanese pseudonym in side view and has an inclined surface which is inclined downward toward the outside of the container at an angle corresponding to the angle of repose.

ADVANTAGEOUS EFFECTS OF INVENTION

The container of the present invention has an opening/closing door rotatably connected to a rear end side and opening/closing in an up-down direction, the opening/closing door being a lower part of an upper part and a lower part formed by vertically dividing a side wall on the rear end side of the container, the side wall on the rear end side being configured such that, in a state where the opening/closing door closes an opening on the rear end side, a contact or engagement part of the upper part and the lower part is located more inward than an upper end part of the upper part and a lower end part of the lower part, and is shaped like japanese pseudonym "く" in a side view.

Therefore, according to this container, particularly in the case where the object to be conveyed is a powder or granular material, since the weight of the object to be conveyed is dispersed in the upper and lower portions in the container, the safety is improved, and a force to close the lower portion (opening/closing door) is applied to the lower portion, and therefore, the object to be conveyed can be prevented from being discharged due to the opening/closing door being accidentally opened, and the speed at which the object to be conveyed is discharged from the opening portion (opening/closing door) can be prevented.

Therefore, the container can easily and safely carry and discharge the transported object.

In the container, a ratio of a vertical length of the upper portion to a vertical length of the lower portion may be set to 1: 1-3: 1.

with this configuration, the weight applied to the lower portion of the object can be set to a weight equal to or less than the weight applied to the upper portion, and therefore, the effect of suppressing the discharge speed of the object can be more easily generated.

Further, the container may further include a locking unit that locks the opening/closing door closed.

The lock unit includes a lock body formed of a strip-shaped plate material as a whole, and the lock body is configured such that one end side in the short-side direction thereof is in contact with one end portion of the opening/closing door and holds the one end portion of the opening/closing door, and the other end side in the short-side direction thereof has a bearing through which a pivot shaft for swinging is inserted.

Therefore, the closing of the opening/closing door can be locked more reliably.

Further, the locking means may be configured to be provided with a mass adjusting means at a predetermined position thereof, and to swing rearward when the container is tilted by a predetermined angle.

According to this configuration, the closing of the opening/closing door can be securely locked, and a series of steps can be performed in which the locking of the opening/closing door by the locking unit is released and then the opening/closing door is automatically opened when the front end side of the container is tilted to a predetermined angle.

Further, a diffusing member may be provided on a peripheral edge of an opening formed in an upper wall of the container for receiving the transported object, the diffusing member having a japanese kana "ノ" shape in side view and an inclined surface that is inclined downward toward an outside of the container at an angle corresponding to the angle of repose.

According to such a configuration, the transported object, particularly the powder or granule, can be diffused to the end portion inside the container, and therefore, more transported object can be accommodated in the container.

Drawings

Fig. 1 is a front view showing an example of a rear end side of a container according to the present invention.

Fig. 2 is a side view showing an opening/closing door on the rear end side of the container shown in fig. 1, in which fig. 2 (a) shows a state in which the opening/closing door is closed and the container is at rest on a horizontal plane, and fig. 2 (B) shows a state in which the opening/closing door is opened by the container being inclined at a predetermined angle.

Fig. 3 is a side view of the shipping container shown in fig. 1.

Fig. 4 is a schematic explanatory view showing a mechanism for suppressing the speed of discharging the transported material from the opening (opening/closing door) when discharging the transported material of the container shown in fig. 1, fig. 4 (a) shows a state where the container is left standing on a horizontal plane and the transported material is introduced from the input port thereof, fig. 4 (B) shows a container where the opening/closing door is closed, fig. 4 (C) shows a state where the opening/closing door is closed and the transported material is discharged from the opening, fig. 4 (D) shows a state where the front end side of the container is raised and the transported material is discharged from the opening, and fig. 4 (E) shows a state where the container is empty.

Fig. 5 is a side view (explanatory view) showing an example of a lock mechanism of a lock unit according to the present invention, fig. 5 (a) shows a state where a container is in a stationary state, and fig. 5 (B) shows a state where the container is tilted at a predetermined angle by raising the front end side thereof.

Fig. 6 is a side view showing another example of the lock unit of the present invention.

Fig. 7 is an explanatory view of the locking mechanism of the locking unit shown in fig. 6, where fig. 7 (a) shows a case where the container is in a state of being left standing, fig. 7 (B) shows a case where the container is in a state of being lifted and tilted at an angle of 10 °, fig. 7 (C) shows a case where the container is in a state of being further lifted and tilted at an angle of 20 °, and fig. 7 (D) shows a case where the container is in a state of being further lifted and tilted at an angle of 30 °.

Fig. 8 is a top view of the container shown in fig. 1.

Fig. 9 is a sectional view a-a' of the container shown in fig. 3.

Fig. 10 is an explanatory view showing another example of a method of discharging a transported material in a container according to the present invention, where fig. 10 (a) shows a state where the container is left standing on a horizontal surface and the transported material is put into the container, (B) of fig. 10 shows a state where the front end side of the container is raised and inclined at an angle of 10 °, fig. 10 (C) shows a state where the front end side is further raised and inclined at an angle of 20 °, fig. 10 (D) shows a state where the front end side is further raised and inclined at an angle of 30 °, and fig. 10 (E) shows a state where the front end side is further raised and the inside of the container is empty.

Description of the reference numerals

1. A container; 1a, a container body; 2. an upper wall; 2a, a feeding port; 3. a lateral wall (left or right); 4. a side wall on the front end side; 5. a side wall on the rear end side; 5a, upper part (side wall); 5b, lower part (opening and closing door); 5c, a hinge; 5d, an abutment or joint; 6. a bottom wall; 7. a guide member; 7a, an upper surface; 8. a locking unit; 8a, a locking body; 8b, a contact portion; 8c, a bearing (holding part); 8d, a step part; 8e, a contact portion; 9. a shaft portion; 10. compressing the coil spring; 11. an operating handle; 12. a mass adjustment unit (counterweight); 13. a 2 nd locking unit; 13a, a locking rod; 13b, an operating handle; 14. a diffusion member; 14a, a diffusion member body; 14b, a base; 14c, a basal end portion; 14d, inclined plane; 14e, top; 14f, a tip end portion; H. a horizontal plane; q, the angle formed by the upper portion and the horizontal plane; r, the angle formed by the lower part and the horizontal plane; s, an angle formed by the upper surface of the guide member and the inner surface of the upper part; θ, an inclination angle of the inclined surface of the diffusion member; x, discharge direction; y, the falling direction.

Detailed Description

An example of the implementation of the container of the present invention will be specifically described below based on the appended drawings.

The present invention is not limited to the embodiments disclosed, and various modifications can be made without departing from the scope of the present invention.

The container body 1a constituting the container 1 is not particularly shown, and is formed in an elongated box shape by an upper wall 2, left and right long-

side walls

3 and 3, a front side wall 4, a rear side wall 5, and a bottom wall 6, and is configured to conform to ISO (international organization for standardization) and CSC (international treaty on container safety) which are the standards of international maritime containers.

When the container 1 is mounted on a vehicle, the side wall 5 on the rear end side is located on the rear side.

As shown in fig. 1 and 2, the rear-end side wall 5 is divided into an upper portion 5a and a lower portion 5b, and is connected by a hinge 5c, and the lower portion 5b constitutes an opening/closing door that can be folded back to the outside (rear) by the hinge 5 c.

In the present invention, as shown in fig. 2 and 3, the rear-end side wall 5 has a japanese kana "く" shape in side view such that the abutting or engaging portion 5d of the upper portion 5a and the lower portion 5b is located inward (forward in the front-rear direction in fig. 2 and 3) of the upper end portion of the upper portion 5a and the lower end portion of the lower portion 5b in a state where the opening/closing door 5b closes the rear-end side opening.

According to such a configuration, in the case where the transported object is a powder or granule, the weight of the transported object is dispersed to the upper and lower portions in the container, and therefore, the safety is improved, and since a force to close the lower portion (opening/closing door) 5b is applied, the transported object can be suppressed from being discharged due to the accidental opening of the opening/closing door 5b, and the speed of discharging the transported object from the opening portion (opening/closing door 5b) can be suppressed.

In fig. 3, the upper portion 5a is arranged at an angle Q of about 75 ° relative to the horizontal H, and the lower portion 5b is arranged at an angle R of about 105 ° relative to the horizontal H.

The angle formed by the upper portion 5a and the horizontal plane H and the angle formed by the lower portion 5b and the horizontal plane H can be appropriately selected according to the weight (mass) of the object to be conveyed.

For example, the upper portion 5a may be disposed at an inclination angle Q of 70 ° to 80 °, preferably 70 ° to 75 °, with respect to the horizontal plane H, and the lower portion 5b may be disposed at an inclination angle R of 105 ° to 140 °, with respect to the horizontal plane H.

In addition, although it is generally desirable to select a small value as the inclination angle R of the lower portion 5b with respect to the horizontal plane, in particular, when a lock unit 8 that locks the closing of the opening/closing door 5b is provided and a weight 12 is attached to a predetermined position of the lock unit 8 as a mass adjusting unit as described later, it is desirable to incline the lower portion 5b inward at a small angle in consideration of a force for closing the lower portion (opening/closing door) 5b, and it is desirable to select a large value as the inclination angle R.

A mechanism for suppressing the speed of discharging the powder-like conveyed object from the opening (opening/closing door 5b) when discharging the powdery-like conveyed object in the container 1 will be described.

When the object to be conveyed is a powder or granule, the pressing force based on the weight of the powder or granule is dispersed to the upper portion 5a and the lower portion 5B in the container 1 as shown in fig. 4 (B) in a state where the opening/closing door 5B closes the opening on the rear end side.

When the opening/closing door 5b is opened, the powder or granule in the container 1 starts to be discharged from the opening by its own weight.

At this time, in the container 1, as shown in fig. 4 (C), the powder or granule falling in the falling direction Y along the upper portion 5a collides with the powder or granule discharged in the discharging direction X from the opening.

Therefore, the powder and granular material interfere with each other, and the discharge speed of the powder and granular material discharged from the opening is suppressed.

Further, the vertical length of the upper portion 5a and the lower portion 5b is not particularly limited, and for example, the ratio of the vertical length of the upper portion 5a to the vertical length of the lower portion 5b can be set to 1: 1-3: 1.

preferably, the vertical length of the upper portion 5a is set to be longer than the vertical length of the lower portion 5b with respect to the vertical lengths of the upper portion 5a and the lower portion 5b, and from the viewpoint of easily exerting the effect of suppressing the discharge speed by the disturbance, the ratio of the vertical length of the upper portion 5a to the vertical length of the lower portion 5b is more preferably 2: 1-3: 1.

when the vertical length of the upper portion 5a exceeds 3 times the vertical length of the lower portion 5b, the opening (discharge port of the object) tends to be too small.

In fig. 1, the upper and lower lengths of the upper and

lower portions

5a and 5b are set at approximately 2 to 1.

Therefore, the ratio of the weight applied to the lower portion 5b of the conveyed object is low, and therefore, the effect of the disturbance on the discharge speed is more easily exerted.

In fig. 2, the upper portion 5a has a guide member 7, and the guide member 7 is provided by extending downward from a lower end edge of the upper portion 5a by a desired length.

The guide member 7 is formed such that the angle S formed by its upper surface 7a and the inner surface of the upper part 5a is greater than an angle 180 DEG-Q and smaller than an angle 180 deg.

According to such a configuration, the powder or granule falling in the falling direction Y along the upper portion 5a falls toward the inside of the container 1 along the guide member 7, and therefore, collides with the powder or granule discharged from the opening in the discharge direction X with a stronger force.

Therefore, the discharge speed of the powder or granule discharged from the opening is further suppressed.

Further, in fig. 2, the angle S formed by the upper surface 7a of the guide member 7 and the inner surface of the upper portion 5a is 150 °.

In fig. 1, a locking means (1 st locking means) 8 for locking the closing of the opening/closing door 5b is provided at the rear end portion of the bottom wall 6 in the longitudinal direction in order to prevent the opening/closing door 5b from being opened accidentally.

As shown in fig. 1 and 5, the locking unit 8 locks or unlocks the closing of the openable door 5b by coming into contact with or separating from the lower end of the openable door 5b, and has one end side (upper end side in fig. 1) in the short-side direction of a locking body 8a formed entirely of a strip-shaped plate material as an abutting portion 8b, the abutting portion 8b coming into contact with the lower end of the openable door 5b and holding the lower end of the openable door 5b, and a bearing (holding portion) 8c through which a shaft portion 9 for swinging penetrates is provided on the other end side (lower end side in fig. 1).

Therefore, the lock unit 8 is swingably supported by the bearing

portions

6a and 6a … by the shaft portion 9 disposed on the other end side thereof being inserted through the support shaft through hole of the bearing

portions

6a and 6a … provided at the rear end portion in the longitudinal direction of the bottom wall 6.

In fig. 1, a compression coil spring 10 is attached to an outer peripheral portion of the shaft portion 9 in the vicinity of the bearing 8c (in fig. 1, in the vicinity of the left and right end portions of the bearing 8 c).

The compression coil spring 10 has a base end portion fixed to one end (lower end side in fig. 1) of the lock body 8a, and a tip end portion fixed to a rear end portion of the bottom wall 6 in the longitudinal direction.

Therefore, when the lock unit 8 is swung upward, the lock unit 8 can be swung with a light force assisted by the biasing force of the compression coil spring 10 in the extension direction.

In fig. 1, in order to lock the opening/closing door 5b more reliably, the lock body 8a constituting the lock unit 8 is configured such that the length in the longitudinal direction thereof is approximately the same as the lateral width of the opening/closing door 5 b.

The length of the lock main body 8a in the longitudinal direction is not particularly limited, and for example, the lock main body 8a may be configured such that the length of the plate material constituting the lock main body 8a in the longitudinal direction is longer than the width of the opening/closing door 5b in the lateral direction.

In this embodiment, the contact portion 8b is configured such that at least a contact surface with the opening/closing door 5b is smooth, and a part of an outer surface of a lower end portion of the opening/closing door 5b is smooth.

According to such a configuration, since the contact area between the contact portion 8b and the opening/closing door 5b is large, the locking unit 8 can more reliably lock the closing of the opening/closing door 5 b.

Further, the outer surface of the lower end portion of the opening/closing door 5b may be configured to be smooth in the left-right direction.

In fig. 1, an operation handle 11 for operating the rotation of the shaft portion 9 and the swing of the lock unit 8 is attached to an end portion of the shaft portion 9.

Therefore, the operator can perform the swing operation of the locking unit 8 without standing by the side of the container before the opening/closing door 5b, and as a result, the closing of the opening/closing door can be locked and unlocked more safely.

The means for operating the rotation of the shaft portion 9 and the swing of the lock means 8 is not particularly limited, and a known operation means can be used.

As shown in fig. 5 (a), in a state where the opening/closing door 5b is locked in the closed state, the lock unit 8 having such a configuration swings forward about the axial center of the shaft portion 9 in association with the upward rotation of the operating handle 11, and the upper end side contact portion 8b of the lock unit 8 in the short-side direction contacts the lower end portion of the opening/closing door 5b, thereby supporting the opening/closing door 5 b.

Therefore, the opening/closing door 5b that closes the opening on the rear end side of the container body 1a is locked.

When the operation handle 11 is rotated downward from this state, the lock unit 8 swings rearward about the axial center of the shaft portion 9 in conjunction with the rearward rotation of the shaft portion 9 about the axial center thereof, as shown in fig. 5 (B).

When the lock unit 8 swings to the rear side, the contact portion 8b of the lock unit 8 is separated from the opening/closing door 5b, and the contact between the contact portion 8b and the lower end portion of the opening/closing door 5b is released.

Thus, the locking of the opening/closing door 5b is also released.

In fig. 1 and 5, the locking unit 8 is configured such that an abutting portion 8b at an upper end thereof abuts against a lower end portion of the opening/closing door 5b and supports the lower end portion of the opening/closing door 5b, but the configuration of the locking unit can be appropriately changed depending on the configuration of the opening/closing door or the like, as long as the abutting portion, which is a free end portion of the locking body configuring the locking unit, can abut against a lower end of the free end portion of the opening/closing door and support the lower end of the free end portion of the opening/closing door.

For example, the opening/closing door may be configured such that a lower end portion of the opening/closing door is connected to a bottom wall by a hinge so that the opening/closing door can be folded outward (rearward) by the hinge, and the lock unit may be configured such that an upper end side of a lock main body constituting the lock unit is pivotally supported swingably on an upper portion of a plate and a lower end side thereof is an abutting portion so that the lock unit abuts against or separates from the upper end portion of the opening/closing door.

In fig. 1, a 2 nd locking unit 13 is provided, which includes: a lock lever 13a which has a rod shape, extends between the plate frames 3a and 3b in the vicinity of the opening/closing door 5b, and locks the closing of the opening/closing door 5 b; and an operation handle 13b attached to the lock lever 13a, and configured to lock and unlock the opening/closing door 5b by rotating the lock lever 13a by operation.

Thus, the closing of the opening and closing door 5b is securely locked.

Further, as the 2 nd locking unit, a known locking unit other than the locking unit 8 can be appropriately selected.

In the present invention, the lock unit 8 is configured such that an abutting portion (free end portion) 8b at an upper end thereof abuts against a lower end portion of the opening/closing door 5b, supports the lower end portion of the opening/closing door 5b, and is configured to be swingable in the vertical direction without depending on the operation handle 11, and in such a case, a mass adjusting unit can be provided at a predetermined position of the lock unit 8.

In fig. 6, a stepped portion 8d is formed at the center of the free end portion of the locking unit 8 to protrude outward by a desired length, and a weight having a desired weight is attached to the outer surface of the stepped portion 8d as the mass adjusting unit 12.

According to such a configuration, in the lock unit 8, the bearing 8c at the lower end thereof functions as a fulcrum, a portion (particularly, the vicinity of the stepped portion 8 d) to which the pressing force or the urging force of the mass adjuster 12 is applied functions as an urging point, and the contact portion 8e in contact with the lower end edge of the opening/closing door 5b functions as an operating point.

Therefore, in a state where the opening/closing door 5b is closed and the container 1 is left standing on a horizontal surface, the pressing force or the acting force generated by the mass adjustment unit 12 corresponds to a force applied at the point of application, and is amplified by the principle of a lever, and at the point of action, the lock unit 8 is strongly pressed toward the inside of the container 1.

Thus, the closing of the opening and closing door 5b is securely locked.

In fig. 6, the distance between the fulcrum and the point of application of force is set to be about 3 times the distance between the fulcrum and the point of action, and therefore, the opening and closing door 5b is pressed with a force of about 3 times the mass of the mass adjusting unit 12.

On the other hand, when the container 1 is tilted by gradually raising the front end side of the container 1 by the lifting means or the like, the force applied in the direction (outside) in which the lock unit 8 is separated is amplified by the principle of the lever at the point of action, and therefore the lock unit 8 can be separated from the opening/closing door 5b by a small force applied.

Therefore, when the container 1 is tilted at a predetermined angle, the opening/closing door 5b can be unlocked relatively easily.

That is, according to the above configuration, as shown in fig. 7, when the front end side of the container 1 is gradually raised by the lifting means or the like and the container 1 is tilted, a series of steps are performed at a predetermined angle, in which the locking of the opening/closing door 5b by the locking means 8 is first released, and then the opening/closing door 5b is automatically opened.

In fig. 6, the mass adjusting means 12 is configured as a pendulum-like weight pivotally supported rotatably on a step portion 8d formed to protrude rearward at the center of the free end portion of the lock means 8, but the form thereof is not particularly limited as long as the mass adjusting means 12 is provided at a predetermined position of the free end portion of the lock means 8, preferably at a position above the contact portion 8e, and is adjustable to have a mass necessary for a predetermined portion of the lock means 8.

As shown in fig. 8 and 9, the upper wall 2 has

inlets

2a and 2a for objects to be transported, which have a desired size, formed at the front end and the rear end, respectively.

In fig. 9, a pair of

diffusion members

14, 14 are disposed in the lateral direction and the front-rear direction at the periphery of the inlet port 2 a.

As shown in fig. 9, the diffusing member 14 is formed in a substantially japanese pseudonymous manner in a side view, and is formed by bending a base end portion 14c of a diffusing member main body 14a formed of a plate-like body having a desired size vertically downward from a base portion 14b attached to a peripheral edge of the inlet port 2a, then folding back outward to form an inclined surface 14d, and further horizontally bending a tip end portion 14e thereof, wherein the inclined surface 14d is inclined downward to a top portion 14e at a desired angle θ.

Therefore, when the diffusion member 14 is provided at the periphery of the inlet port 2a so that the distal end edge thereof faces outward, the inclination angle θ of the inclined surface 14d is set to an angle corresponding to the angle of repose of the transported object (particularly, the powder or granular material), and preferably set to an angle larger than the angle of repose, so that the transported object (particularly, the powder or granular material) is diffused to the end portion inside the container 1 by the inclined surface 14d, and a larger amount of the transported object can be accommodated in the container.

In fig. 1 and 9, the inclined surface 14d of the diffusion member 14 is inclined downward to the outside at a large inclination angle θ with respect to the angle of repose of the conveyed material (particularly, the powder or granule).

Here, the "angle of repose" refers to an angle at which the particulate matter does not accumulate but flows down when the angle is equal to or greater than the angle of repose in a natural state, and the angle of repose is defined according to the type of the conveyed matter.

In this embodiment, the diffusing member 14 is configured to have a straight inclined surface, but the inclined surface may be formed to bulge outward in an arc shape.

In fig. 2 and 5, the diffusion member 14 is provided in a pair in the front-rear direction and the left-right direction of the peripheral edge of the inlet port 2a, respectively, but may be provided at least in part of the peripheral edge of the inlet port 2a, or may be provided so as to surround the peripheral edge of the inlet port 2 a.

With the container 1 having such a structure, the discharge operation of the objects to be conveyed can be performed as follows.

The container 1 is in a state of having powder or granular material as a transported object, which is fed from the feeding

ports

2a, 2a formed in the upper wall 2 thereof (fig. 10 (a)). A lifting unit (not shown) capable of lifting and lowering the front side of the container 1 is attached to a predetermined position of the container.

In fig. 10, the container 1 is a container without the 2 nd locking unit 13, but when the 2 nd locking unit 13 is provided, the 2 nd locking unit 13 is unlocked before the container 1 is lifted and lowered as necessary.

When the front side of the container 1 is gradually raised to reach a predetermined angle (the angle is 20 ° in fig. 10C), the lock unit 8 swings to the rear side ((B) of fig. 10 → (C) of fig. 10).

When the lock unit 8 is swung rearward, the contact of the opening/closing door 5b with the lock unit 8 is released as shown in fig. 10 (C).

Therefore, the opening/closing door 5b can be opened by the weight of the object (fig. 10D).

Then, when the front side of the container 1 is further raised and the container 1 is tilted, all the objects in the container 1 can be discharged by their own weight ((D) of fig. 10 → (E) of fig. 10).

The container of the present invention can be used for transporting powder or granular material such as wood particles, but can be used for transporting general cargo.

Industrial applicability

The container of the present invention is configured such that a lower portion of a rear end side wall of the container, which is vertically divided, is an opening/closing door that opens and closes in a vertical direction, and the rear end side wall is formed in a japanese kana "く" shape in a side view in a state where the opening/closing door closes the rear end side opening, and the conveyance of the conveyed object and the discharge of the conveyed object thereafter can be easily and safely performed.

Thus, the container can be applied to all containers.

Claims

1. A container having an opening/closing door rotatably connected to a rear end side and opened and closed in the vertical direction,

the container is characterized in that it is provided with a container,

the opening and closing door is a lower part of an upper part and a lower part formed by vertically dividing a side wall at the rear end side of the container,

the rear-end side wall is configured such that, in a state where the opening/closing door closes the rear-end side opening, the contact or engagement portion between the upper portion and the lower portion is located inward of the upper end portion of the upper portion and the lower end portion of the lower portion, and is formed in a japanese kana "く" shape in side view,

the locking unit includes a locking body integrally formed of a band-shaped plate material,

the lock body is configured such that one end side in the short-side direction thereof is in contact with one end portion of the opening/closing door and holds the one end portion of the opening/closing door, and the other end side in the short-side direction thereof has a bearing through which a pivot shaft for swinging is inserted,

2. The container of claim 1,

3. A container according to claim 1 or 2,

4. A container according to claim 1 or 2,

5. a container according to claim 1 or 2,

a diffusing member having a japanese kana 'ノ' shape in side view and an inclined surface that descends at an angle corresponding to the angle of repose toward the outside of the container is provided at the periphery of the opening.