JP2004017926A - Container fastening device in container cargo work vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container fastening device in a container cargo work vehicle in which a container can be stably held on a vehicle body even in the container cargo work vehicle not sliding the container when loading and unloading the container and which is simple in construction and excellent in safety. <P>SOLUTION: In the container cargo work vehicle in which the container C is loaded and unloaded between on the vehicle body 1 and on the ground using a cargo work arm 2, the vehicle body 1 is provided with a fastening member 41 fastening the container C on the vehicle body 1 by engaging with engaging member C5 equipped to the container C, an operating lever 43 is connected to a fastening member 41 via a connecting member such as a link mechanism 42, and the fastening member 41 is constructed so as to be able to engage with and disengage from the engaging member C5 by the operation of the operating lever 43. The link mechanism 42 is constructed so as to act in a direction retaining the fastening member 41 engaging condition with the engaging member C5, unless the the link mechanism is forcibly actuated by the operation of the operation lever 43. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a container handling vehicle for loading and unloading a container between a vehicle body and the ground, and more particularly to a container lashing device for lashing a container on the vehicle body.
[0002]
[Prior art]
Conventionally, a hook provided at the tip of a cargo handling arm is engaged with an engagement pin of a container, and the container is moved between the vehicle body and the ground by holding this engagement state and rotating the cargo handling arm in the front-rear direction. There is provided a vehicle equipped with a container handling device that is loaded and unloaded at the same time.
[0003]
Specifically, the cargo handling arm has a horizontal rear end connected to a dump frame rotatably supported at the rear end of the vehicle body, and a hook that can be engaged with and disengaged from a container engaging pin at the front end. The vertical part which has has stood up from the front end of the said horizontal part, and is formed in the substantially L shape as a whole.
[0004]
For example, in the case of a large container handling vehicle, when the container is wholesaled from the vehicle body to the ground, the container is once slid backward on the vehicle body, and then the cargo handling arm is rotated backward. On the contrary, when the container is loaded, the cargo handling arm is rotated forward to place the container on the vehicle body, and then the container is slid forward to be disposed at a predetermined position on the vehicle body.
[0005]
By the way, when traveling, it is necessary to stably hold a container mounted on the vehicle body on the vehicle body.
[0006]
Therefore, in the large container handling vehicle as described above, when the container is slid forward on the vehicle body, by locking the securing member provided on the vehicle body side to the locking member provided on the bottom of the container, The container is stably held on the vehicle body.
[0007]
[Problems to be solved by the invention]
However, in a large container handling vehicle as described above, it is possible to hold the container on the vehicle body using the sliding operation of the container. However, in a container handling vehicle that does not involve such a sliding operation, the container is held. There was a problem in terms of safety during driving.
[0008]
The present invention has been made in view of the above problems, and the object of the present invention is to stably hold the container on the vehicle body even in a container handling vehicle in which the container is not slid when the container is unloaded. Another object of the present invention is to provide a container lashing device in a container handling vehicle having a simple configuration and excellent safety.
[0009]
[Means for Solving the Problems]
A container lashing device in a container handling vehicle according to a first aspect of the present invention includes a horizontal portion whose rear end portion is supported on the rear end portion side of the vehicle body so as to be rotatable in the front-rear direction via a dump frame, and the horizontal portion And a vertical portion having a hook that is detachable from the front end of the container and has a hook that can be freely engaged with and disengaged from the engaging pin of the container. In the container handling vehicle in which the container is unloaded between the vehicle body and the ground by rotating in the direction, the vehicle body is locked to a locking member provided on the container and the container is A securing member for securing on the vehicle body is provided, and an operation lever is connected to the securing member via a connecting member, and the securing member is configured to be freely engageable with and disengaged from the locking member by operation of the operation lever. Stuff .
[0010]
In the container lashing device in the container handling vehicle according to the second aspect of the invention, the connecting member is constituted by a link mechanism, and the linking member is locked unless the link mechanism is forcibly operated by the operation of the operation lever. It is comprised so that it may act in the direction maintained in the state latched by the member.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 shows a container handling vehicle.
[0013]
The container handling vehicle is a small vehicle such as a mini vehicle, and includes a container handling device for loading and unloading the container C on the vehicle body 1.
[0014]
The container handling device includes a cargo handling arm 2 and an undulating cylinder 3 (see a two-dot chain line) that operates the cargo handling arm 2.
[0015]
The cargo handling arm 2 is configured in an L shape as a whole by a horizontal portion 21 that is horizontally disposed in a state where the container C is mounted and a vertical portion 22 that is erected vertically from the tip of the horizontal portion 21 in the same state. Has been.
[0016]
The horizontal portion 21 is rotatably supported at the tip end portion of the dump frame 23 indicated by a two-dot chain line in FIG. 3, and the rear end portion of the dump frame 23 is rotated to the rear end portion of the vehicle body 1. It is supported freely.
[0017]
The vertical portion 22 is provided with a loading / unloading hook (hook) 24 detachably engaged with an engaging pin C1 provided on the container C at the tip thereof.
[0018]
The hoisting cylinder 3 is connected between the horizontal portion 21 of the cargo handling arm 2 and the vehicle body 1. Specifically, the base end portion 31 of the hoisting cylinder 3 is connected to the vehicle body 1 side, and the telescopic rod end 32 is connected to the middle portion of the horizontal portion 21.
[0019]
In addition, the cargo handling arm 2 is provided with a cargo handling arm securing device (not shown) capable of integrally securing the cargo handling arm 2 together with the dump frame 23 and releasing the securing.
[0020]
The container C has an open upper surface as shown in FIG. 1, for example, and a rear wall C2 that can be opened and closed with its lower end as a center. A thing that can be opened and closed so that it can be discharged is used.
[0021]
In addition, the container C is provided with the engaging pin C1 at the upper part of the front wall, the support leg C3 at the bottom front part, and the support roller C4 at the bottom rear part.
[0022]
Furthermore, a roller 11 for smoothly loading and unloading the container C between the vehicle body 1 and the ground is provided at the rear end of the vehicle body 1 (subframe).
[0023]
Next, the operation of unloading the container C between the vehicle body 1 and the ground using the container handling vehicle configured as described above will be described.
[0024]
First, when unloading the container C from the vehicle body 1 to the ground, the hoisting cylinder 3 is extended with the container C mounted as shown in FIG. At this time, the cargo handling hook 24 of the cargo handling arm 2 is engaged with the engagement pin C1 of the container C, and the cargo handling arm 2 is rotated backward by the extension operation of the hoisting cylinder 3 so that the container C is shown in FIG. While tilting as indicated by the chain line, the product is placed on the ground as indicated by the two-dot chain line in FIG.
[0025]
Next, when the container C is loaded onto the vehicle body 1 from the ground, the cargo handling hook 24 of the cargo handling arm 2 is engaged with the engagement pin C1 of the ground container C by the operation of the cargo handling arm 2 and the backward movement of the vehicle. Thereafter, the hoisting cylinder 3 is retracted and the cargo handling arm 2 is rotated forward in the opposite direction to that described above, so that it can be loaded onto the vehicle body 1.
[0026]
On the other hand, when the container C is dumped on the vehicle body 1 and the cargo in the container C is discharged, the cargo handling arm 2 and the dump frame are loaded by the cargo handling arm securing device with the container C mounted as shown in FIG. As shown by a two-dot chain line in FIG. 3, the undulation cylinder 3 is extended in this state, and the integrated cargo handling arm 2 and the dump frame 23 are rotated rearward. The container C can be dumped on the vehicle body 1 and the cargo in the container C can be discharged through the rear wall C2 opened from the container C.
[0027]
By the way, the container C is secured on the vehicle body 1 in the container handling vehicle capable of unloading the container C between the vehicle body 1 and the ground as described above and discharging the cargo in the container C. A container lashing device 4 as shown in FIG. 4 is provided.
[0028]
As shown in FIG. 5, the container lashing device 4 includes a lashing lever 41 as a lashing member that can be locked to a locking member C <b> 5 provided on the bottom surface of the container C, and a link mechanism 42 on the lashing lever 41. And an operation lever 43 connected to each other.
[0029]
The lashing lever 41 is provided at the base end part of the vehicle body 1 so as to be pivotable back and forth by, for example, a pin 41a on the subframe 11, and the lashing shaft 41b provided at the distal end is fixed to the locking lever 41. The member C5 is engaged and disengaged.
[0030]
Specifically, as shown in FIG. 6, the locking member C5 is formed in a bowl shape having a horizontal portion C6 and a rising portion C7, and the upper end of the rising portion C7 is fixed to the bottom surface of the container C by welding or the like. Has been. The horizontal portion C6 is formed with a notch C8 having a predetermined length in the front-rear direction from the front end to the middle portion.
[0031]
On the other hand, the middle part of the securing lever 41 is formed so that the notch C8 can be inserted. Accordingly, when the container C is placed on the vehicle body, the lashing lever 41 is rotated from the front to the rear as shown in FIG. 41b is comprised so that it may contact | abut and contact with the upper surface of the horizontal part C6 from upper direction.
[0032]
One end of the link mechanism 42 is pivotally supported in the middle of the lashing lever 41, the link rod 42a is disposed in the front-rear direction, and the other end of the link rod 42a is connected to the other end of the link rod 42a. And a connecting link 42c provided so as to be rotatable integrally therewith.
[0033]
The other end portion of the link rod 42a is formed in a curved portion 42d resembling a substantially crescent shape of the lower chord when viewed from the side, and the curved portion 42d straddles the pin 42b from above and behind the pin 42b. The connecting link 42c is pivotally supported by a pin 42e. Further, a spring cylinder 42g having a spring 42f incorporated therein is interposed in the middle of the link rod 42a, and the link rod 42a is urged in a direction to retract in the axial direction by the urging force of the spring 42f.
[0034]
In the state where the lashing lever 41 is locked to the locking member C5 as shown by the solid line in FIG. 5, the center of the pin 42e is a line connecting the pivot point of the lashing lever 41 and the link rod 42a and the pin 42b. It is located below L. Therefore, even if an axial force is generated in the link rod 42a in this state, a clockwise force in FIG. 5 acts on the connecting link 42c. In other words, this action maintains the state in which the container C is secured by the securing lever 41, and the connecting link 42c is forcibly rotated counterclockwise so that the forward force in the axial direction does not act on the link rod 42a. As long as the lashing lever 41 is not detached from the locking member C5, the lashing is not released.
[0035]
The operation lever 43 is integrally provided at the outer end of the pin 42b. At the front position indicated by a solid line in FIG. 5, the lashing lever 41 is rotated rearward through the link mechanism 42 to the locking member C5. In the rear position indicated by a two-dot chain line in FIG. 5, the locking lever 41 is rotated forward through the link mechanism 42 and released from the locking member C5 to release the locking. It is made to arrange in the release position to be made.
[0036]
The container lashing device 4 configured as described above loads the container C onto the vehicle body 1 from the ground by the cargo handling arm 2 as described above in a state where the lashing lever 41 is disposed at the release position by the operation lever 43. Then, by placing the lashing lever 41 from the release position to the locking position by the operation lever 43, the lashing lever 41 is locked to the locking member C5 of the container C, whereby the container C is locked on the vehicle body 1. Can be tied up.
[0037]
At this time, the lashing lever 41 is firmly locked to the locking member C5 with an optimum lashing force without play by the action of the spring 42f provided on the link rod 42a. Further, in this secured state, the center of the pin 42e is located below the line L, so that the secured hook 41 does not separate from the locking member C5 even if an external force acts on the link rod 42a. Therefore, the locked state can be held stably and reliably, and safety during traveling can be ensured.
[0038]
On the other hand, when the container C is unloaded from the vehicle body 1 to the ground, it can be carried out by the cargo handling arm 2 as described above by forcibly placing the lashing lever 41 at the release position by the operation lever 43. .
[0039]
In the present embodiment, the container lashing device 4 provided in the container handling vehicle, which is a small vehicle, has been described. However, the container lashing device 4 is not limited to the small vehicle, and the container lashing device 4 is generally used for loading and unloading containers. Can be applied. Further, the container lashing device 4 can be applied not only to a container that does not involve a sliding operation of the container during loading and unloading of the container, but also to a device that involves a sliding operation.
[0040]
In addition, the link mechanism 42 has been described as an example of a connection member that connects the securing member and the operation lever. However, the connection member is not limited to the link mechanism, and a linear member such as a wire, a connection rod, or the like is used. Also good.
[0041]
【The invention's effect】
As described above, according to the container lashing device in the container handling vehicle of the present invention, the lashing member for locking the container on the vehicle body by locking the locking member provided on the container to the vehicle body. In addition to providing an operation lever to the lashing member via a connecting member such as a link mechanism, and by detaching the lashing member from the locking member by operating the operation lever, the container can be unloaded. Even in a container handling vehicle that does not involve the sliding operation of the container, the container can be secured on the vehicle body in a stable and reliable manner, and safety during traveling can be ensured.
[Brief description of the drawings]
FIG. 1 is a side view showing an overall configuration of a container handling vehicle.
FIG. 2 is a side view showing a container loading / unloading operation of a container handling vehicle.
FIG. 3 is a side view showing an operation for discharging cargo in a container of a container handling vehicle.
FIG. 4 is a side view showing an attachment state of the container lashing device in the container handling vehicle.
FIG. 5 is an enlarged side view showing the configuration of the container lashing device.
FIG. 6 is a perspective view showing a locked state between a lashing lever and a locking member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Car body 2 Handling arm 21 Horizontal part 22 Vertical part 23 Dump frame 24 Handling hook (hook)
3 Lifting cylinder 4 Container lashing device 41 Lashing lever (locking member)
42 Link mechanism 43 Operation lever C Container C1 Engagement pin C5 Locking member

Claims (2)

A horizontal portion whose rear end portion is supported on the rear end portion side of the vehicle body through a dump frame so as to be rotatable in the front-rear direction, and is erected from the front end of the horizontal portion and is engaged with and disengaged from the engagement pin of the container at the front end. It is provided with a cargo handling arm formed in a substantially L shape as a whole with a vertical part having a free hook, and the container is moved between the vehicle body and the ground by rotating the cargo handling arm in the front-rear direction by a hoisting cylinder. In container handling vehicles designed to be unloaded at
The vehicle body is provided with a lashing member that is locked to a locking member provided on the container and lashes the container on the vehicle body, and an operation lever is connected to the lashing member via a connecting member. A container lashing device in a container handling vehicle, wherein the lashing member is configured to be freely engaged with and disengaged from the locking member by operation of an operation lever. The connecting member is configured by a link mechanism, and the link mechanism is configured to act in a direction to maintain the lashing member in a state of being locked to the locking member unless the link member is forcibly operated by operation of the operation lever. The container lashing device for a container handling vehicle according to claim 1.

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