JPH11170905A - Container loading and unloading vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent interference with the second engaging member at the time of rearward rotation of a loading and unloading arm by permitting the second engaging member on a tilting frame to be rotated downward, and conduct loading of a container onto a frame smoothly. SOLUTION: This container loading and unloading vehicle, which is formed so as to unload a container from above a sub-chassis 4 by the rearward rotation of a loading and unloading arm 14, load the container onto the sub-chassis by the forward rotation of the cargo handling arm 14 so as to make the first engaging member 26 on a tilting frame 12 engage with the second engaging member at the container lower surface, rotate the first engaging member 26 downward to a non-engaging position by supporting it so as to be rotatable vertically in its perpendicular surface, and interlocking it with the rearward rotation of the cargo handling arm 14 so as not to have interference with the loading and unloading arm 14 during the rearward rotation of the loading and unloading arm 14, and maintains it in an engaging posture capable of engagement with the second engaging member by upward rotation to the engaging posture interlocking with the frontward rotation of the loading and unloading arm 14 during the forward rotation of the loading and unloading arm 14, and by contact with a stopper 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container loading / unloading vehicle in which containers can be loaded and unloaded on a vehicle body side frame, and more particularly, to a measure for smoothly loading containers on a chassis.

[0002]

2. Description of the Related Art Generally, a container cargo handling vehicle has a base end supported by a vehicle body side frame so as to be rotatable in the vehicle longitudinal direction.
A cargo handling arm having an L-shaped arm that can be extended and contracted at the distal end side, and a telescopic tilting cylinder that rotates the cargo handling arm relative to the vehicle body side frame in the vehicle longitudinal direction are provided. By extending the tilting cylinder with the L-shaped arm contracted and the container moved rearward, the cargo handling arm is rotated rearward around its base end to move the container from above the vehicle body side frame. While unloading the container from the ground, the tilting cylinder is contracted, the cargo handling arm is rotated forward around its base end, the L-shaped arm is extended, and the cargo handling arm is slid forward. It is configured to be loaded on the side frame.

[0003] In such a container handling vehicle, when the traveling vibration or the like acts on the container during traveling, the container is prevented from jumping up with respect to the vehicle body side frame by engaging the container with the vehicle body side frame. Some are equipped with a container lashing device. As this container securing device, a first engaging member protruding above the vehicle body side frame and having an engaging concave portion at an upper portion thereof,
The base end is attached to the lower surface of the container and protrudes downward,
And a cross section substantially L whose front end is detachably engaged with the engagement recess.
A second engagement member having a U-shape, and by extending the telescopic cylinder and sliding the cargo handling arm backward when unloading the container, the tip of the second engagement member is moved from the engagement recess of the first engagement member. While releasing the container to release the container from the vehicle body side frame by the container securing device, the retractable cylinder is contracted at the time of loading the container, and the cargo handling arm is slid forward, so that the leading end of the second engaging member is moved. Is engaged with an engagement recess of a first engagement member to secure a container on a vehicle body side frame by a container securing device.

[0004]

However, when the above-mentioned container is loaded on a chassis such as a frame on a vehicle body, there are the following drawbacks.

[0005] That is, when a container of a different type different from a dedicated container normally loaded and unloaded, for example, a heavy container, etc., is loaded in accordance with the deregulation of the container mounted on the container handling vehicle, the loading arm and the tilting arm are required. It is necessary to reinforce the cylinder, etc., especially since stress tends to concentrate near the connecting point of the tilting cylinder to the cargo handling arm. It is conceivable to attach the tilting cylinder to the cargo handling arm by a large bracket extending to near the base end of the arm. However, in such a large-sized bracket, when the cargo handling arm pivots rearward and the bracket pivots rearward with the cargo handling arm,
There is a risk of contact with the second engaging member protruding from the vehicle body side frame, so that the rearward rotation of the cargo handling arm cannot be performed smoothly, and the container cannot be smoothly loaded on the chassis.

Further, when a container is loaded, there is an angular difference between the container longitudinal center axis extending in the vehicle longitudinal direction of the container and the chassis longitudinal center axis extending in the vehicle longitudinal direction, and the container loading posture deteriorates. In this case, the main girder of the container may not be reliably guided by each guide roller and may come off from each guide roller, and the container cannot be smoothly loaded on the chassis. Moreover, even if a container whose loading posture is deteriorated in this way is loaded on the chassis, the container cannot be kept in the normal loading posture on the chassis, and the container may fall from the chassis due to running vibration or the like. There is also.

When a container having a size different from that of the dedicated container is loaded, the distance between the main girder and the interval between the guide rollers may not match. The two main girders cannot be guided by the respective guide rollers, and the container cannot be smoothly loaded on the chassis.

Further, when the container is loaded, a worker engaged in the container loading operation to the vicinity of the tip of the cargo handling arm, for example, a driver of a container handling vehicle, visits and visually checks the engagement between the hook and the hook engaging member. It is necessary to confirm, especially in dark places such as at night or indoors, and the confirmation becomes very troublesome, so that the container cannot be smoothly loaded on the chassis.

In addition, when the hook and the hook engaging member are aligned at the time of loading the container, it is necessary to visually confirm the driver or the like near the tip of the cargo handling arm. Then, the confirmation becomes very troublesome, and the container cannot be smoothly loaded on the chassis.

Furthermore, if an obstacle such as a parked vehicle exists in front of the container, the hook at the tip of the cargo handling arm does not reach the hook engaging member of the container, so that the hook cannot be engaged with the hook engaging member. In addition, it is necessary to wait until the obstacle is cleared, and the container cannot be smoothly loaded on the chassis.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing, and it is an object of the present invention to prevent interference with a second engaging member on a chassis when a cargo handling arm is rotated rearward, and to prevent main movement from each guide roller. Prevents girder disengagement, changes the spacing between each guide roller according to the distance between the two main girder, reports visually unnecessary engagement between hook and hook engaging member, and visually eliminates alignment between hook and hook engaging member By notifying or engaging the hook from the side of the container, it is possible to smoothly load the container onto the chassis.

[0012]

In order to achieve the above object, according to the first aspect of the present invention, the second engaging member on the chassis is rotated vertically in a vertical plane.

More specifically, a cargo handling arm having a hook at its tip is supported on the chassis so as to be rotatable in the vehicle longitudinal direction, and a first engaging member protruding upward is provided.
A hook mounted on the container mounted on the undercarriage is provided on a front surface of the container so as to be releasably engaged with the hook. A second engagement member for securing the container on the chassis is provided to protrude downward, and in a state where the hook is engaged with the hook engagement member, the container is rotated by the rearward rotation of the cargo handling arm to form the chassis. It is assumed that the container handling vehicle is configured to load the container onto a chassis by rotating the cargo handling arm forward and to engage the first and second engagement members with each other while the cargo handling arm is unloaded from above. The first engaging member is rotatably supported in the vertical direction in a vertical plane, and is interlocked with the backward rotation of the cargo handling arm so as not to interfere with the cargo handling arm when the cargo handling arm rotates backward. While the cargo handling arm pivots forward, and rotates upward in conjunction with the forward rotation of the cargo handling arm so that the cargo handling arm is held in an engagement position capable of engaging with the second engaging member when pivoting forward. The configuration is such that the

According to the first aspect of the present invention, the first engaging member projecting upward from the undercarriage pivots downward in the vertical plane in conjunction with the backward rotation of the cargo handling arm. The tilting cylinder is attached to the cargo handling arm by a large bracket that extends to the vicinity of the base end of the cargo handling arm, making full use of the effective dimensions of the undercarriage in the vehicle width direction so as not to interfere with the cargo handling arm. Also, when the large-sized bracket rotates rearward with the cargo handling arm, interference with the second engagement member is reliably avoided, and the rearward rotation of the cargo handling arm is performed smoothly.

On the other hand, the first engagement member is held in an engagement position in which it can be engaged with the second engagement member by rotating upward in the vertical plane in conjunction with the forward rotation of the cargo handling arm. Therefore, the second engaging member on the lower surface of the loaded container is smoothly engaged with the first engaging member by the forward rotation of the cargo handling arm, and the container is securely fastened on the undercarriage.

According to the second aspect of the invention, each guide roller of the main girder of the container is swung in the front-rear direction of the vehicle body in a horizontal plane.

Specifically, a cargo handling arm having a hook at the tip is rotatably supported in the vehicle longitudinal direction, and a pair of left and right guide rollers are rotatably supported at the rear end of the chassis. A front surface of a container mounted on a chassis is provided with a hook engaging member which is detachably engaged with the hook, and a pair of left and right main girders is provided on a lower surface. In the state of being engaged with the member, the main girder of the container is guided by guide rollers by the backward rotation of the cargo handling arm, respectively, and the container is unloaded from the undercarriage. It is assumed that the container is a container handling vehicle in which both main girders of the container are guided by guide rollers and the container is loaded on a chassis. And, each of the above guide rollers,
The guide roller is swingably supported in the front-rear direction in the horizontal plane, and a flange is provided on at least one end of each of the guide rollers. When loading the container, the guide rollers are swung in a horizontal plane by the loading operation of the container, and the main spar is engaged with the flange of each guide roller to correct the container to a normal loading position. The configuration is as described above.

According to the second aspect of the present invention, each guide roller swings in the front-rear direction of the vehicle body in a horizontal plane due to the loading operation of the container, and the two main girders on the lower surface of the container are engaged with the flange of each guide roller. The container is corrected to the normal loading position, so when loading the container, there is an angle difference between the vertical center axis of the container and the vertical center axis of the chassis, and the loading position of the container is Even if it is getting worse, the two main girders of the container are surely guided by the guide rollers, and the container is smoothly loaded on the chassis. In addition, the container whose loading posture is deteriorated is corrected to the normal loading posture by engaging the two main girders with the flanges of the respective guide rollers that can swing in the horizontal plane, so that the vertical center axis of the container and the chassis can be corrected. The angle difference between the container and the vertical center axis gradually disappears with the forward rotation of the cargo handling arm, and the container is reliably prevented from dropping from the undercarriage due to running vibration or the like.

According to the third aspect of the present invention, the interval between the guide rollers is changed according to the distance between the two main girders.

More specifically, a cargo handling arm having a hook at the tip is rotatably supported in the front-rear direction of the vehicle body, and a pair of left and right guide rollers is rotatably supported at the rear end. A front surface of a container mounted on a chassis is provided with a hook engaging member which is detachably engaged with the hook, and a pair of left and right main girders is provided on a lower surface. In the state of being engaged with the member, the main girder of the container is guided by guide rollers by the backward rotation of the cargo handling arm, respectively, and the container is unloaded from the undercarriage. It is assumed that the container is a container handling vehicle in which both main girders of the container are guided by guide rollers and the container is loaded on a chassis. Then, a roller interval changing means is provided between each of the guide rollers, and each of the guide rollers is
It is configured to be connected to the roller interval changing means, and to operate the roller interval changing means to change the interval in the vehicle width direction according to the distance between the two main girders of the container loaded on the chassis. is there.

According to the third aspect of the present invention, the interval between the guide rollers in the vehicle width direction is changed by the roller interval changing means in accordance with the distance between the two main girders of the container loaded on the chassis. Therefore, when loading containers of different sizes on the undercarriage, by changing the distance between the guide rollers according to the distance between the two main girders of the container, the distance between the two main girders of the container and each The spacing between the guide rollers can be matched, and containers of different sizes can be smoothly loaded on the chassis with the two main girders being reliably guided by the respective guide rollers.

The solution taken by the invention according to claim 4 is as follows.
In addition to the constituent features of the third aspect of the invention, a flange is provided at one end of each guide roller.

According to the fourth aspect of the present invention, when a container is loaded, there is an angular difference between the vertical center axis of the container and the vertical center axis of the chassis, and the loading posture of the container is deteriorated. When the container is loaded, the two main girders on the lower surface of the container engage with the flanges of the respective guide rollers and are reliably guided by the respective guide rollers, so that the angle between the vertical center axis of the container and the vertical center axis of the chassis is adjusted. The difference gradually disappears with the forward rotation of the cargo handling arm, the container is corrected to the normal loading position, it is smoothly loaded on the chassis, and the container may fall from the chassis due to running vibration etc. It is surely prevented.

According to the fifth aspect of the present invention, the engagement between the hook and the hook engaging member is notified.

More specifically, a cargo handling arm having a hook at its tip is supported on the chassis so as to be rotatable in the front-rear direction of the vehicle, and is detachably engageable with the hook on the front surface of a container mounted on the chassis. A hook engaging member to be engaged is provided, and in a state where the hook is engaged with the hook engaging member,
It is assumed that the container is unloaded from the undercarriage by rotating the cargo handling arm backward, and the container is loaded on the undercarriage by rotating the cargo handling arm forward. And, when the container is loaded, engagement detection means for detecting that the hook and the hook engagement member are engaged, and an output from the engagement detection means,
An engagement notifying means for notifying the engagement between the hook and the hook engaging member is provided.

According to the fifth aspect of the present invention, since the engagement between the hook and the hook engaging member is notified by the engagement notifying means, the engagement between the hook and the hook engaging member can be visually confirmed. Even if a worker engaged in container loading work near the tip of the cargo handling arm, for example, a driver of a container handling vehicle, does not visit and check, the hook and the hook engaging member can be engaged while the driver is in the driver's seat. In addition to being confirmed, the hook can be easily engaged with the hook engaging member in a dark place such as at night or indoors, and the loading workability can be efficiently improved.

According to the sixth aspect of the invention, the position of the hook and the hook engaging member is notified.

More specifically, a cargo handling arm having a hook at the tip is rotatably supported in the front-rear direction of the vehicle body, and is detachably engageable with the hook on the front surface of a container mounted on the chassis. A hook engaging member to be engaged is provided, and in a state where the hook is engaged with the hook engaging member,
It is assumed that the container is unloaded from the undercarriage by rotating the cargo handling arm backward, and the container is loaded on the undercarriage by rotating the cargo handling arm forward. Then, when the vehicle moves backward during the loading of the container and approaches the container, the engagement allowable range detection means for detecting that the hook is located within the engagement allowable range, and the engagement range detection means And an engagement allowable range notifying means for notifying that the hook is positioned within the engagement allowable range.

According to the sixth aspect of the present invention, the hook is located within the engagement allowable range when the vehicle moves backward and approaches the container by loading the container by the engagement allowable range notifying means. It is not necessary to visually confirm the alignment between the hook and the hook engaging member by the worker himself who has traveled to the vicinity of the tip of the cargo handling arm.
It is easy to check the position of the hook and the hook engaging member while the driver of the container handling vehicle is in the driver's seat, and also to check the position of the hook and the hook engaging member at night or indoors in a dark place. Can be easily performed, and the container loading operation can be effectively performed.

Further, in the invention according to claim 7, the hook is engaged from the side of the container.

Specifically, a cargo handling arm having a hook at the tip is supported by the chassis so as to be rotatable in the front-rear direction of the vehicle body. A central hook engaging member that is detachably engaged is provided, and in a state where the hook and the central hook engaging member are engaged, the container is unloaded from the undercarriage by rotating the cargo handling arm backward, It is assumed that the container handling vehicle is configured such that the container is loaded on a chassis by rotating the cargo handling arm forward. Further, at least one side of the central hook engaging member is provided with a side hook engaging member with which the hook is detachably engaged from the side.

According to the seventh aspect of the present invention, since the side hook engaging member is provided on at least one side of the central hook engaging member, an obstacle such as a parked vehicle exists in front of the container. In this case, the hook from the side of the container can easily reach and be engaged with the side hook engaging member without waiting for the obstacle to retreat. For this reason,
The front portion of the container can be easily pulled out to the side, so that the container can be quickly loaded on the undercarriage and the loading efficiency can be greatly improved.

[0033]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 2 to 4 show the configuration of a container handling vehicle 1 according to a first embodiment of the present invention, wherein 2 is a driver's seat 3.
A pair of left and right body frames extending rearward from below
Reference numeral 4 denotes a sub-chassis as a chassis provided on a rear portion of each body frame 2. Sub-chassis 4
On the (body frame 2), a loading / unloading device 6 for loading / unloading the container 5 between the sub chassis 4 and the ground is mounted. The rear wall of the container 5 has a shaft 9
Thus, the upper end is pivotally supported to form a tailgate 7 that can be opened downward rearward. Reference numeral 8 denotes a pair of left and right main girders extending in the longitudinal direction of the vehicle body on the lower surface of the container 5.
T and RT are front wheels and rear wheels.

As shown in FIG. 5, the loading / unloading device 6 is supported between the rear ends of the sub-chassis 4 so as to be tiltable rearward around the axis 11 and a pair of left and right positions located at the rear of the sub-chassis 4. The vehicle includes a tilting frame 12 and a substantially L-shaped cargo handling arm 14 that is connected so as to be able to undulate around a support shaft 13 at the front of each tilting frame 12. The cargo handling arm 14 includes a guide member 16, a substantially L-shaped L-shaped arm 17 slidably fitted in the guide member 16,
An extendable telescopic cylinder 18 is provided between the guide member 16 and the L-shaped arm 17. The telescopic cylinder 18 is contracted when the container 5 is unloaded from the mounted state on the sub-chassis 4 (see FIG. 5A) to the ground, and moves the L-shaped arm 17 backward (see FIG. 5B). In this state, the cargo handling arm 14 is rotated rearward around the support portion 13 (see C in FIG. 5), so that the container 5 (the main girder 8) is rotated.
Is slid on guide rollers 20 (to be described later) by its own weight, and is slid onto the ground. On the other hand, the telescopic cylinder 18 is extended by rotating the cargo handling arm 14 forward around the support portion 13 and mounting the container 5 on the sub-chassis 4 from the ground to move the L-shaped arm 17 forward. , A container 5 is mounted on the sub-chassis 4 from the ground. Further, the telescopic cylinder 18 is not contracted when the container 5 on the sub-chassis 4 is tilted. In this state, the L-shaped arm 17 is held at the forward position (A in FIG. 5), whereby the tilting frame 12 is moved. Of the cargo handling arm 14 around the support portion 13 is prohibited, the tilting frame 12 and the cargo handling arm 14 are integrally secured, and the tilting frame 12 and the cargo handling arm 14 are tilted rearward around the pivot 11 ( FIG.
The container 5 is tilted on the vehicle body frame 2 and the contents in the container 5 are discharged with the opening of the tailgate 7.

At the tip of the cargo handling arm 14, that is, at the tip of the guide member 16, a hook-shaped hook 1 having an engagement hole 15a is provided.
The hook 15 is provided so as to removably engage with an engaging pin 5a as a hook engaging member provided at the center of the upper end of the front surface of the container 5 through an engaging hole 15a. Has become. Further, between the portion near the rear end of the guide member 16 (the cargo handling arm 14) and the front position of the sub-chassis 4, the front and rear pivots 19a,
A pair of left and right tilt cylinders 19 are rotatably supported via 19b. As shown in detail in FIG. 4, the tilt cylinders 19 are arranged on both left and right sides of the cargo handling arm 14 between the sub-chassis 4, and extend rearward from a member 21 connecting the front ends of the sub-chassis 4. The front pivot 19a is attached to the front ends of the pair of extension flanges 22.
The front end is attached via. On the other hand, the rear end of each tilting cylinder 19 is attached to the left and right sides near the rear end of the cargo handling arm 14 (guide member 16) via the rear pivot 19b, and the vehicle width of the rear pivot is provided. It is attached by a pair of left and right large brackets 23 extending from the outside in the direction to the rear end (base end) of the cargo handling arm 14 behind the pivot 19b on the rear side. Each of the large-sized brackets 23 is formed so as to make full use of the effective dimension between the rear ends of the sub-chassis 4 and extends to the vicinity of the rear end of the cargo handling arm 14 so as to ease the regulation of containers mounted on the container handling vehicle. Accordingly, when unloading a heavy container, stress concentration near the connecting point of the tilting cylinder 19 to the cargo handling arm 14 is effectively reduced.

A pivot 11 at the rear end of the sub-chassis 4
A pair of left and right guide rollers 20 are rotatably supported on the pair. Each of the guide rollers 20 is substantially uniform so as to slidably contact with the main girder 8 of the container 5 at an inner portion on the vehicle body vertical center axis Y (vertical center axis of the chassis) side extending between the tilting frames 12 in the vehicle front-rear direction. Sliding contact portion 20a formed in a radial shape
And a tapered flange 20b whose diameter is increased outward at the outer end of the sliding contact portion 20a.

Further, as shown in FIG. 1, between the tilting frame 12 and the lower surface side (main girder 8 side) of the container 5 mounted on the tilting frame 12, A container securing device 24 for securing the container 5 is provided. The container securing device 24 includes:
A pair of left and right first engagement members 26 protruding from a substantially central portion of the left and right tilting frames 12, and a pair of left and right second engagement members 25 provided at the rear of the lower surface of the container 5. I have. The base end of the second engaging member 25 has a main girder 8.
It is attached to the vehicle width direction inner side, and after extending downward, the tip 25a extends forward to form a substantially L-shaped cross section. On the other hand, the first engagement member 26 has an engagement concave portion 26a at an upper portion thereof to which the tip 25a of the second engagement member 25 is detachably engaged. When the container 5 is loaded on the tilting frame 12 by the loading / unloading device 6, the L-shaped arm 1
7, the front end 25a of the second engagement member 25 is inserted from behind into the engagement concave portion 26a of the first engagement member 26 and engaged therewith, whereby the container 5 is fixed to the tilting frame 12, while When the container 5 is unloaded to the ground by the loading / unloading device 6, L
As the distal end 25a of the second engaging member 25 is disengaged rearward from the inside of the engaging concave portion 26a of the first engaging member 26 by the retreat movement of the mold arm 17, the securing of the container 5 to the tilting frame 12 is released. It has become.

The first engagement member 26 is provided with a pair of left and right projections 26b extending downward from the lower end of the engagement recess 26a along the inner and outer sides of the tilting frame 12. Is rotatably supported by the horizontal pins 26c with respect to the inner and outer sides of the tilting frame 12 so as to be able to move up and down in a vertical plane oriented in the vehicle longitudinal direction. At the rear end of the cargo handling arm 14, a protruding piece 14a having a tip protruding below the support shaft 13 is provided. The protruding piece 14a is rotatably supported by the support shaft 13 and can be engaged rearward from the upright state (the state shown by a two-dot chain line in FIG. 1) of the cargo handling arm 14 (the guide member 16) (see FIG. 1). (The state shown by the solid line in FIG. 1), and rotates in unison with the forward rotation and the backward rotation in a predetermined area, and rotates relative to the other loading and unloading arms 14 during the forward and backward rotations. It is supposed to. An arm 26d extending downward is provided at the lower end of the protruding piece 26b inside the first engagement member 26.
The front and rear ends of a link 27 extending in the vehicle front-rear direction are rotatably supported between the lower end of 6d and the tip of the protruding piece 14a. The link 27 is a protruding piece that is interlocked with the forward rotation in the predetermined area (the forward rotation between the rearwardly inclined state and the upright state of the cargo handling arm 14) when the cargo handling arm 14 rotates forward. When the cargo handling arm 14 rotates backward while the rearward rotation of the cargo handling arm 14a moves backward, the rearward rotation in the predetermined area (the cargo handling arm 1).
The rearward rotation of the protruding piece 14a in conjunction with the rearward rotation of the protruding piece 14a from the upright state to the rearwardly inclined state of the vehicle 4 moves the vehicle body forward.

The first engaging member 26 pivots downward in the front-rear direction of the vehicle body by the rearward movement of the link 27 in conjunction with the forward rotation of the cargo handling arm 14 in the predetermined area. 14 retreats (retreats) out of the rotation locus K (the area shown by the dashed line in FIG. 1), and the second engagement member 2
5 is positioned at a non-engagement position (position indicated by a solid line in FIG. 1) in which engagement with the engagement recess 26a is impossible. On the other hand, the first engagement member 26 pivots forward in the vehicle body front-rear direction upward by the rearward movement of the link 27 interlocking with the forward rotation of the cargo handling arm 14 in the predetermined area, and the rotation of the cargo handling arm 14. The second engagement member 2
5 is positioned at an engagement position (position indicated by a two-dot chain line in FIG. 1) at which the front end 25a can be engaged in the engagement recess 26a, and is held in the engagement posture at this position. Then, at the engagement position of the first engagement member 26, the first
A stopper 28 is provided at a position corresponding to the inner side of each tilting frame 12 corresponding to a position immediately before the engaging member 26. When the first engagement member 26 is rotated upward (enters the rotation trajectory K of the cargo handling arm 14) by a link 27 that moves backward in conjunction with the forward rotation of the cargo handling arm 14 in the predetermined area. At the engagement position, and is held in the engagement posture at the engagement position.

Therefore, in the first embodiment, the first engagement member 26 protruding above the tilting frame 12 is provided.
Only when the cargo handling arm 14 is pivoted rearward in a predetermined area (the pivoting of the cargo handling arm 14 from the upright state shown by the two-dot chain line in FIG. 1 to the rearward inclined state shown by the solid line in FIG. 1). By turning downward and backward in the vertical plane facing the vehicle body in conjunction with the turning of the
Move to the outside disengaged position (the position indicated by the solid line in FIG. 1),
Since it does not interfere with the cargo handling arm 14, the effective dimension between the sub-chassis 4 is fully utilized on both the left and right sides of the cargo handling arm 14 and a pair of left and right large brackets 23 extending to near the rear end of the cargo handling arm 14. Even if the rear end of the tilting cylinder 19 is attached to the cargo handling arm 14, the interference with the first engagement member 26 is reliably prevented when the large bracket 23 is rotated backward with the cargo handling arm 14, The rearward rotation of the cargo handling arm 14 can be performed smoothly.

On the other hand, the first engaging member 26 is
4 (forward rotation between the backward tilt state shown by the solid line in FIG. 1 and the upright state shown by the two-dot chain line in FIG. 1) of the loading arm 14 By rotating upward in the vehicle longitudinal direction in conjunction with the forward rotation in the region, the engagement position at which the second engagement member 25 can be engaged with the second engagement member 25 within the rotation trajectory K of the cargo handling arm 14, that is, the tilting frame The container 5 is moved to the protruding position on the upper surface 12 and held in the engaging position at this position by contact with the stopper 28.
The front end 25a of the second engagement member 25 on the lower surface is the first engagement member 2
6 can be smoothly engaged with the engagement concave portion 26a, and the container 5 can be securely fastened on the sub-chassis 4.

In the first embodiment, the first engagement member 26 is rotated between the upper engagement position and the lower non-engagement position via the link 27. As shown, a spring 29 is connected between an upper portion of the first engagement member 26 and a corresponding position of the tilting frame 12 corresponding to the front side of the first engagement member 26, and the first force is applied by the urging force of the spring 29. Until the engaging member 26 comes into contact with the stopper 28, it is urged upward in the vehicle front-rear direction and held in the engaging position at the engaging position. Even when the first engagement member 26 abuts against the front surface of the first engagement member 26, the first engagement member 26 pivots downward and rearward in the vehicle longitudinal direction to move to the non-engagement position against the urging force of the spring 29. good. In addition, the first engagement member is not limited to a member that rotates in the vertical direction in the vertical plane facing the vehicle front-rear direction and moves between the upper engagement position and the lower retreat position, and is not limited to the vehicle front-rear direction. The vehicle may be rotated between the two positions so as to rotate forward and downward to the non-engagement position, and to rotate rearward and upward in the vehicle body rearward direction to be positioned at the engagement position. Further, the first engagement member rotates downward in the vehicle body inward or outward direction within the vertical plane oriented in the vehicle width direction to move to the non-engagement position and upward in the vehicle body outward or inward direction. It may be one that rotates and moves between the two positions so as to be positioned at the engagement position.

Furthermore, in the first embodiment, the stopper 28 is provided at a position corresponding to the inside of each tilting frame 12 corresponding to the position immediately before the first engaging member 26 at the engaging position. May be a stopper that regulates the backward rotation of the protruding piece or the backward movement of the link when the forward rotation is completed.

Further, in the first embodiment, the tip 25 of the second engaging member 25 having a substantially L-shaped cross section on the lower surface of the container 5 is provided.
a and the engaging recess 26a of the first engaging member 26 on the tilting frame 12 are engaged. However, while the engaging recess is provided in the second engaging member on the lower surface of the container, the first engaging member on the tilting frame is provided. The joining member may be formed to have a substantially L-shaped cross section.

Next, a second embodiment of the present invention will be described with reference to FIG.

In this embodiment, the configuration of the guide roller is changed.

That is, in the present embodiment, as shown in FIG. 7, a pair of left and right support brackets 31 projecting outward in the vehicle width direction are provided at the rear end of the tilting frame 12, respectively. At the outer end of each of the support brackets 31, one end (inner end) of a pin-like member 32 extending in the horizontal direction is rotatably supported around the pin 33 via a pin 33 (vertical axis) extending in the vertical direction. Have been. A guide roller 20 is supported on the other end side (outer end side) of the pin-shaped member 32 so as to be rotatable around the pin-shaped member 32. That is, the guide roller 20 is supported by the support brackets 31 at the rear end of the tilting frame 12 so as to be swingable in the vehicle longitudinal direction in the horizontal plane.

In this case, each guide roller 20 swings in a horizontal plane by the loading operation of the container 5 when the container 5 is loaded, and the container longitudinal center axis extending between the main girders 8 of the container 5 in the vehicle longitudinal direction. X (vertical center axis of container)
The main beam 5 of the container 5 engages with the flange 20b of each guide roller 20, the pin-shaped member 32 of each guide roller 20 causes the container vertical center axis Each guide roller 20 swings in the front-rear direction of the vehicle body in the horizontal plane with the support bracket 31 so as to be orthogonal to the X, so that the container 5 is corrected to the normal loading posture. The configuration other than the guide roller is the same as that of the first embodiment, and the same portions are denoted by the same reference numerals and detailed description thereof will be omitted.

Therefore, in the above-described embodiment, when each of the guide rollers 20 loads the container 5,
Loading operation of the container 5 with respect to the flange 20b.
, The pin-shaped member 32 of each guide roller 20 swings in the vehicle longitudinal direction in a horizontal plane so as to be in a direction orthogonal to the container longitudinal center axis X, and the container 5 is brought into a normal loading posture. Container 5
When the container 5 is loaded, even if the angle difference θ exists between the container vertical center axis X and the vehicle body vertical center axis Y and the posture of the container 5 is
The container 5 can be smoothly loaded on the sub-chassis 4 by guiding the container 5 smoothly.

Further, the container 5 whose loading posture is deteriorated is corrected to the normal loading posture by engaging the two main girders 8 with the flanges 20b of the guide rollers 20 which can swing in the horizontal plane. The angle difference θ between the container vertical center axis X and the vehicle body vertical center axis Y also gradually disappears with the forward rotation of the cargo handling arm 14 moving forward on the vehicle body vertical center axis Y, and the angle difference θ due to running vibration and the like. The fall of the container 5 from the chassis 4 can be reliably prevented.

In the second embodiment, the flange 2
0b is provided at the outer end of the sliding contact portion 20a.
As a matter of course, a flange may be provided at the inner end of the sliding contact portion, and if flanges are provided at both inner and outer ends of the sliding contact portion, holding of the container on the sub-chassis is more reliable. Can be done.

Next, a second embodiment of the present invention will be described with reference to FIGS.

In this embodiment, the configuration of the guide roller is changed.

That is, in the present embodiment, as shown in FIGS. 8 and 9, between the guide rollers 20, that is, between the rear ends of the tilting frames 12, a cylinder 41 as a rotor interval changing means is provided with a vehicle width. It extends in the direction. The cylinder 41 is composed of a pair of left and right pistons 41a, a center head side chamber 41b and left and right rod side chambers 41c, 41c.
d, and a guide roller 2 is attached to the tip of a piston rod 41e extending outward from the pistons 41a.
0 is provided. Each guide roller 20 is supported at the tip of the piston rod 41e so as to be rotatable around the axis of the piston rod 41e. Each of the guide rollers 20 is moved in the vehicle width direction by the expansion and contraction operation of the piston rod 41e. That is, the interval between the guide rollers 20 increases when the respective piston rods 41e extend, and decreases when the respective piston rods 41e contract. As shown in FIG. 8, the distance h (d + i) between the two main girders 8 becomes larger than the distance d between the guide rollers 20 due to the angle difference θ between the container vertical center axis X and the vehicle body vertical center axis Y. And the distance h ′ (d + d) between the two main girders 8 ′ is larger than the distance d between the guide rollers 20 because of the large size of the container 5 ′ as shown in FIG.
Even if i) is increasing, each main digit 8
(Or 8 ') can be increased or decreased according to the distance h (h'). When a container 5 having a poor loading posture is loaded, the piston rod 41e of the cylinder 41 is contracted at the end of the forward rotation of the cargo handling arm 14 to move each guide roller 20 inward in the vehicle width direction, By returning the distance d between the outer ends of the sliding portions 20a of the guide rollers 20 to the original position, the angle difference θ between the container vertical center axis X and the vehicle body vertical center axis Y disappears, and a normal loading posture is achieved. I am trying to. The other components except the guide roller are the same as those described in the first embodiment.
This is the same as in the embodiment described above, and the same portions are denoted by the same reference numerals and detailed description thereof will be omitted.

Therefore, in the above embodiment, the container 5 loaded on the sub-chassis 4 by the cylinder 41
The distance between the guide rollers 20 in the vehicle width direction is increased or decreased according to the distance between the two main girders 8 (8 ') of (5'). Therefore, the distance between the container vertical center axis X and the vehicle body vertical center axis Y is changed. Angle difference θ
The container 5 having a poor loading posture in which the distance h between the two main girders 8 is larger than the distance d between the guide rollers 20
When loading a container 5 'having a distance h' between the two main girders 8 'larger than the distance d between the guide rollers 20, the main girder 8 (8') of the container 5 (5 '). The distance h between the two main girders 8 (8 ') of the container 5 (5') is increased by changing the distance between the guide rollers 20 by extending the piston rod 41e of the cylinder 41 in accordance with the distance between them. (H ′) and the distance d + i between the guide rollers 20 can be matched, so that the container 5 having a poor loading posture and the container 5 ′ having a large size can be used for the two main girders 8.
(8 ') is reliably guided by each guide roller 20, and can be smoothly loaded on the sub-chassis 4.

When the container 5 having a poor loading posture is loaded, the container 5 is loaded by the loading operation of the container 5.
The two main girders 8 on the lower surface are engaged with the flanges 20b of the respective guide rollers 20 and reliably guided by the respective guide rollers 20, so that the angle difference θ between the container vertical center axis X and the vehicle body vertical center axis Y is reduced. In addition to gradually disappearing with the forward rotation of the cargo handling arm 14, the cylinder 41
, The distance d between the outer ends of the sliding portions 20a of the guide rollers 20 is returned to the original position, so that the container 5 is smoothly corrected to the normal loading position,
The container 5 can be reliably prevented from dropping from above the sub-chassis 4 due to running vibration or the like.

In the third embodiment, the case of loading a large-sized container 5 'has been described. However, the present invention is not limited to this, and a small-sized container may be loaded. More specifically, the distance between the two guide girders of the container loaded in the normal loading position can be changed not only by increasing the distance between the guide rollers but also by decreasing the distance between the guide rollers. It is also possible to load containers.

In the third embodiment, the left and right guide rollers 20 are moved in the vehicle width direction by using the single cylinder 41. However, the left and right dedicated rollers or the dual-purpose or dedicated actuator are used. Needless to say, the left and right guide rollers may be moved in the vehicle width direction by a motor or the like.

Next, a fourth embodiment of the present invention will be described with reference to FIGS.

In this embodiment, the configuration of the hook is changed.

That is, in this embodiment, as shown in FIG. 11, the hook 15 is provided with an engagement confirming means 51 for confirming the engagement of the hook 15 with the engagement pin 5a of the container 5 when unloading the container. Have been. As shown in FIG. 12, the engagement confirmation means 51 is provided inside the hook 15 and includes an engagement detection means 52 for detecting completion of engagement with the engagement pin 5a. The engagement detecting means 52
Is a curved portion 53 that bends according to the shape of the hook 15.
a is provided on one end side (the right side in FIG. 12). The engagement detecting member 53 is rotatably supported by the hook 15 via a pin 54 at a substantially central portion thereof. The other end of the engagement detecting member 53 extends linearly in the L-shaped arm 17 toward the corner. The bending portion 53a is provided with an engagement pin 5a.
Abuts on the engagement pin 5a (at a position shown by a solid line in FIG. 12) before an engagement position (a position shown by a two-dot chain line in FIG. 12) with which the hook 15 is engaged. By contact, it swings downward to the position of engagement with the hook 15, whereby the other end swings upward.

At the upper swinging position (the position shown by the two-dot chain line in FIG. 12) at the other end of the engagement detecting member 53, the engagement detecting member 53 is located at an opposing position in the L-shaped arm 17 opposing the other end. Is provided with a proximity switch 55. The proximity switch 55 detects that the other end of the engagement detecting member 53 has pivoted upward, that is, the engagement pin 5a
Is configured to detect that engagement has been completed. In this case, the engagement detecting means 52 includes an engagement detecting member 53
And a proximity switch 55.

A light emitting diode device 56 as an engagement notifying means is mounted near the corner of the right outer surface of the L-shaped arm 17 which can be easily checked from the driver's seat 3. The light emitting diode device 56 controls the upward swing of the other end of the engagement detecting member 53 by the proximity switch 55 (engagement detecting means 52).
Light-emitting section 5 that emits light in response to a detection signal detected by
6a, and the light emission of the light emitting portion 56a informs the engagement between the hook 15 and the engagement pin 5a. In this case, the engagement confirming means 51 includes an engagement detecting means 52 (an engagement detecting member 53 and a proximity switch 55) and a light emitting diode device 56. still,
The other configuration except for the engagement confirmation means 51 is the same as that of the first embodiment, and the same portions are denoted by the same reference numerals and detailed description thereof will be omitted.

Therefore, in the above embodiment, the driver's seat 3
The engagement between the hook 15 and the engaging pin 5a is notified by the light emitting portion 56a of the light emitting diode device 56 that emits light near the corner on the right outer surface of the L-shaped arm 17 which can be easily confirmed from the hook 15. The worker engaged in the container loading operation to the vicinity of the leading end of the cargo handling arm 14 in which the engagement with the 5a can be visually observed, for example, the driver of the container handling vehicle 1 or the like, does not need to visit and confirm while staying in the driver's seat 3. The engagement between the hook 15 and the engagement pin 5a can be confirmed, and the hook 15 can be easily engaged with the engagement pin 5a in a dark place such as at night or indoors. Can be planned.

In the fourth embodiment, the engagement between the hook 15 and the engaging pin 5a is notified by the light emission of the light emitting portion 56a of the light emitting diode device 56. Without limitation, alerts,
Or you may make it alert | report by combining with a warning. Further, the light emitting diode device 56 is provided on the cargo handling arm 14 (L-shaped arm 17), but it is a matter of course that such an engagement notifying means may be provided at a position such as a driver's seat where visibility is excellent. .

Next, a fifth embodiment of the present invention will be described with reference to FIGS.

In this embodiment, measures are taken to facilitate the engagement between the hook and the engagement pin.

That is, in the present embodiment, as shown in FIG. 13, an infrared emission detection device 61 is provided at the tip of one side surface (right side surface of the vehicle body) of the L-shaped arm 17. When the container is loaded, that is, when the L-shaped arm 17 (the cargo handling arm 14) is rotated rearward, the infrared emission detection device 61 is positioned at the front of the container 5 (right side in FIG. 13). Infrared rays are emitted toward a reflective plate 63) described later, while detecting that the emitted infrared rays are reflected and returned.

The engagement between the hook 15 and the engaging pin 5a is performed by rotating the cargo handling arm 14 rearward.
In the state where the center of the engagement hole 15a of the hook 15 is aligned with the center of the hook a, the engagement allowable range Z that allows the engagement with the engagement pin 5a even if the hook 15 is slightly displaced vertically and horizontally. (The range shown in FIG. 14). With the center of the engagement hole 15a of the hook 15 aligned with the center of the engagement pin 5a, the container is located above the engagement pin 5a on the front surface of the container 5 facing the infrared emission detection device 61 and the container vertical center line. At a position slightly to the right of the axis X (not shown) (to the left in FIG. 14), a horizontally long rectangular reflecting plate 63 having a shape coinciding with the engagement allowable range Z is attached. In the state where the center of the engagement hole 15a of the hook 15 is aligned with the center of the engagement pin 5a, infrared rays emitted from the infrared emission detection device 61 are radiated to the center of the reflection plate 63 and reflected. The reflected light returns to the infrared emission detection device 61 as before. That is, the hook 15 is located within the engagement allowable range Z if the infrared ray emitted from the infrared emission detection device 61 has returned to its original state, and the engagement with the engagement pin 5a is allowed. ing.

The engagement allowable range detecting means 62 is constituted by the infrared emission detecting device 61 and the reflection plate 63. The container allowable handling vehicle 1 moves backward when the container is loaded by the engagement allowable range detecting means 62. Container 5
, It is detected that the hook 15 is located within the engagement allowable range Z.

Further, a lamp 64 is mounted on the rear side of the infrared emission detecting device 61 (the front side of the vehicle body when the container is loaded) as an engagement allowable range informing means. The lamp 64 is turned on in response to a detection signal when the reflected light reflected by the irradiation of the reflecting plate 63 with infrared light is detected by the infrared emission detection device 61. It is notified that it is located inside. The configuration other than the engagement allowable range detecting means 62 and the lamp 64 is the same as that of the first embodiment, and the same portions are denoted by the same reference numerals and detailed description thereof will be omitted. .

Therefore, in the above-described embodiment, when the container loading / unloading vehicle 1 moves backward and approaches the container 1 during loading of the container, the hook 15 is moved within the allowable engagement range Z by the lamp 64 on the back surface of the infrared emission detection device 61. , The driver of the container handling vehicle 1 can easily check the alignment between the hook 15 and the engagement pin 5a while staying in the driver's seat 3 and at night or indoors. The position of the hook 15 and the engaging pin 5a can be easily confirmed in a dark place, and the loading operation of the container 5 can be performed effectively.

In the fifth embodiment, the lamp 64
Indicates that the hook 15 is located in the engagement allowable range Z, but is not limited to such a visual notification, and may be notified by an alarm or a combination with an alarm. It may be made to be possible. In addition, although the ramp 64 is provided on the cargo handling arm 14 (L-shaped arm 17), it is a matter of course that such an engagement allowable range notifying means may be provided at a position such as the driver's seat where visibility is excellent. .

Next, a sixth embodiment of the present invention will be described with reference to FIGS.

In this embodiment, the configuration of the engagement pin is changed.

That is, in the present embodiment, as shown in FIGS. 16 and 17, both left and right sides of the engaging pin 5a (central hook engaging member) at the center of the front upper end of the container 5, that is, the upper end of the front of the container 5 Side engaging pins 71 and 72 as side hook engaging members are provided at both left and right ends. When the obstacle G such as a parked vehicle is present on the front side of the container 5, the side engagement pins 71 and 72 are in a container loading posture from an oblique side of the container (in the figure, an oblique left side). Hook 1 with container handling vehicle 1 approaching
5 are engaged. Then, one of the side engagement pins 71 and 72 (the left side engagement pin 7
By moving the container handling vehicle 1 forward (diagonally to the left with respect to the container 5) in a state where the hook 15 is engaged with 1), the front of the container 5 is set to the side (the left side in the figure). To one side engaging pin 71 (or 7
By detaching the hook 15 from 2) and re-engaging the hook 15 with the central engaging pin 5a, the container 5 can be loaded on the sub-chassis 4. The left and right side engagement pins 71, 72 have the same structure as the center engagement pin 5a. The other configuration except for the side engaging pins 71 and 72 is the same as that of the first embodiment.
The same portions are denoted by the same reference numerals, and detailed description thereof will be omitted.

Therefore, in the above embodiment, since the side engaging pins 71 and 72 are provided at the left and right ends of the front upper end of the container 5, an obstacle G such as a parked vehicle exists in front of the container 5. In this case, the hook 15 from the oblique side of the container 5 can easily reach and be engaged with the side engaging pin 71 (or 72) without waiting until the obstacle G retreats. For this reason, the front part of the container 5 can be easily pulled out to the side, and the hook 15 can be re-engaged with the central engaging pin 5a to quickly load the container 5 on the sub-chassis 4. The loading work efficiency can also be dramatically improved.

In the sixth embodiment, the left and right lateral engaging pins 71 and 72 have the same structure as the central engaging pin 5a. However, as shown in FIG. Pin 7
3 and 74 may be curved so as to be directed obliquely outward. In this case, the left and right side engagement pins 73 and 74 are provided.
The hook 15 is more smoothly engaged with the hook 74 from the side, and the front side of the container 5 is more smoothly pulled out to the side.

In the sixth embodiment, the lateral engaging pins 71, 71 are located on the left and right sides of the central engaging pin 5a, respectively.
Although the 72 (73, 74) is provided, the side engaging pin may be provided only on one side of the center engaging pin.

[0081]

As described above, according to the container cargo handling vehicle according to the first aspect of the present invention, the first engaging member on the chassis side is moved downward by the rearward rotation of the cargo handling arm so as not to interfere with the cargo handling arm. While the pivoting lever is pivoted upward so as to engage with the second engaging member in conjunction with the forward pivoting of the cargo handling arm. 1st by turning backward
A first engagement member that can rotate the cargo handling arm rearward while reliably preventing interference with the engaging member and load the container onto the chassis smoothly, and that holds the engagement posture by the forward rotation of the cargo handling arm; The engagement between the mating member and the second engaging member can be performed smoothly, and the container can be securely fastened on the chassis.

According to the container loading / unloading vehicle of the second aspect, the two main girders on the lower surface of the container are engaged with the flanges of the respective guide rollers which oscillate in the horizontal plane by the loading operation of the container so that the container can be properly handled. Since the loading posture is corrected, the two main girders of the container whose loading posture is deteriorated can be reliably guided by the respective guide rollers, and the container can be smoothly loaded on the undercarriage. It is possible to reliably prevent the vehicle from falling from above the chassis.

According to the third aspect of the present invention, the distance between the guide rollers in the vehicle width direction is changed according to the distance between the two main girders of the container. The distance between the guide rollers and the distance between the guide rollers can be matched, so that containers of different sizes can be smoothly loaded on the chassis.

According to the container handling vehicle of the fourth aspect, since the flange is provided at one end of each guide roller, both main girders on the lower surface of the container are loaded by the loading operation of the container whose loading posture is deteriorated. Can be securely guided by engaging the flanges of each guide roller, the container can be corrected to the proper loading position and loaded smoothly on the chassis, and the container can be reliably prevented from falling due to running vibrations etc. .

According to the container cargo handling vehicle of the fifth aspect, since the engagement between the hook and the hook engaging member is notified, the engagement between the hook and the hook engaging member can be performed while being in the driver's seat. The hook can be checked without visual inspection, and the hook and the hook engaging member can be easily engaged in a dark place, so that the loading workability can be efficiently improved.

According to the container cargo handling vehicle according to the sixth aspect of the present invention, if the vehicle is moved backward during loading of the container, the allowable range of hook engagement is reported, so that the hook and hook engaging system can be maintained while being in the driver's seat. The position of the hook and the hook engaging member can be easily checked in the dark place such as at night or indoors, and the loading operation of the container can be performed effectively.

Further, according to the container cargo handling vehicle of the present invention, since the side hook engaging member is provided on at least one side of the central hook engaging member, an obstacle in front of the container from the side of the container. By engaging the hook with the side hook engaging member while avoiding the object, the front part of the container can be easily pulled out to the side, and the container can be quickly loaded on the chassis without waiting due to obstacles. The loading work efficiency can also be dramatically improved.

[Brief description of the drawings]

FIG. 1 is a side view of the vicinity of a body lock device in a container handling vehicle according to a first embodiment of the present invention.

FIG. 2 is a rear view of the container cargo handling vehicle.

FIG. 3 is a side view of the container handling vehicle in a state where the container is mounted.

FIG. 4 is a plan view of the rear part of the container cargo handling vehicle.

FIG. 5 is a side view showing an operating state of the tilting frame and the cargo handling arm.

FIG. 6 is a diagram corresponding to FIG. 1 showing a modification of the first embodiment.

FIG. 7 is a plan view of the vicinity of a rear end of a vehicle body in a container loading start state according to a second embodiment of the present invention.

FIG. 8 is a plan view of the vicinity of a rear end portion of a vehicle body in a container loading start state according to a third embodiment of the present invention.

FIG. 9 is a rear view of the container handling vehicle showing posture correction after loading of the container is completed.

FIG. 10 is a rear view of the container handling vehicle showing a loaded state of a large container.

FIG. 11 is a side view of a container and a cargo handling arm in a state immediately before loading a container according to a fourth embodiment of the present invention.

FIG. 12 is a side view of the vicinity of a hook showing a configuration of an engagement detecting unit.

FIG. 13 is a side view of a container and a cargo handling arm in a state immediately before loading a container according to a fifth embodiment of the present invention.

FIG. 14 is a front view of the container showing an allowable range of engagement of the hook by the engagement identification means.

FIG. 15 is a perspective view of the container and the cargo handling arm in a state immediately before loading of the container.

FIG. 16 is a plan view of a container and a cargo handling arm showing a container loading start state according to a sixth embodiment of the present invention.

FIG. 17 is a plan view of the vicinity of a front portion of the container, showing a configuration of an engagement pin.

FIG. 18 is a diagram corresponding to FIG. 17 according to a modification of the sixth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cargo handling vehicle 4 Subchassis (chassis) 5,5 'Container 5a Engagement pin (center hook engagement member) 8,8' Main girder 14 Cargo handling arm 15 Hook 20 Guide roller 20b Flange 25 Second engagement member 26 First 1 engagement member 31 container securing device 41 cylinder (roller interval changing means) 52 engagement detection means 56 light emitting diode (engagement notification means) 62 engagement allowable range detection means 64 lamp (engagement range notification means) 71- 74 Side engagement pin (side hook engagement member) Z Allowable range d Distance between guide rollers h, h 'Distance between main girders

Claims (7)

[Claims] 1. An undercarriage arm having a hook at a tip is rotatably supported in the vehicle longitudinal direction, and a first engaging member protruding upward is provided on the undercarriage, and is mounted on the undercarriage. The container is provided with a hook engaging member which is detachably engaged with the hook on the front surface, and is detachably engaged with the first engaging member to place the container on a chassis. A second engaging member for securing is provided to protrude downward, and in a state where the hook is engaged with the hook engaging member, the container is unloaded from the undercarriage by rotating the cargo handling arm rearward, A container loading / unloading vehicle in which the container is loaded on a chassis by forward rotation of the loading / unloading arm and the first and second engaging members are engaged with each other; Can be turned up and down within When the cargo handling arm is rotated backward, it rotates downward in conjunction with the backward rotation of the cargo handling arm so as not to interfere with the cargo handling arm, while when the cargo handling arm rotates forward, A container handling vehicle, characterized in that the container handling vehicle is configured to rotate upward in conjunction with forward rotation of a cargo handling arm so as to be held in an engagement position capable of engaging with the second engagement member. 2. A loading support arm having a hook at an end thereof is rotatably supported in the front-rear direction of the vehicle body, and a pair of left and right guide rollers is rotatably supported at a rear end of the underbody. The container to be mounted is provided with a hook engaging member for engaging and disengaging with the hook on the front surface, and a pair of left and right main girders is provided on the lower surface. In the engaged state, the main girder of the container is guided by guide rollers by the backward rotation of the cargo handling arm, respectively, and the container is unloaded from the undercarriage. A container cargo handling vehicle in which both main girders of a container are guided by guide rollers and the container is loaded on a chassis, wherein each of the guide rollers is swingable in a vehicle longitudinal direction in a horizontal plane. A flange is provided on at least one end side of each of the guide rollers, and when loading the container, each of the guide rollers swings in a horizontal plane by the loading operation of the container, and the two main girders are moved. A container handling vehicle, wherein the container is adjusted to a normal loading posture by engaging with a flange of each guide roller. 3. A chassis has a cargo handling arm having a hook at a tip end rotatably supported in the vehicle longitudinal direction, and a pair of left and right guide rollers rotatably supported at a rear end. The container to be mounted is provided with a hook engaging member for engaging and disengaging with the hook on the front surface, and a pair of left and right main girders is provided on the lower surface. In the engaged state, the main girder of the container is guided by guide rollers by the backward rotation of the cargo handling arm, respectively, and the container is unloaded from the undercarriage. A container cargo handling vehicle in which both main girders of a container are guided by guide rollers, and the container is loaded on a chassis, wherein roller spacing changing means is provided between the guide rollers, The guide rollers are connected to the roller interval changing means, and the operation of the roller interval changing means changes the interval in the vehicle width direction according to the distance between the two main girders of the container loaded on the chassis. A container cargo handling vehicle characterized by being configured as follows. 4. The container handling vehicle according to claim 3, wherein a flange is provided at one end of each of the guide rollers. 5. A cargo handling arm having a hook at an end thereof is rotatably supported in the front-rear direction of the vehicle body, and a front surface of a container mounted on the chassis is detachably engaged with the hook. A hook engaging member is provided, and in a state where the hook is engaged with the hook engaging member, the container is unloaded from the undercarriage by the backward rotation of the cargo handling arm, while the forward rotation of the cargo handling arm is performed. A container cargo handling vehicle configured to load the container on a chassis by movement, wherein engagement detecting means for detecting that the hook and the hook engaging member are engaged when loading the container, A container handling vehicle comprising: an engagement notifying unit that receives an output from the engagement detecting unit and notifies the engagement between the hook and the hook engaging member. 6. A cargo handling arm having a hook at an end thereof is rotatably supported in the front-rear direction of the vehicle body on the chassis, and a container mounted on the chassis is detachably engaged with the hook on a front surface of the container. A hook engaging member is provided, and in a state where the hook is engaged with the hook engaging member, the container is unloaded from the undercarriage by the backward rotation of the cargo handling arm, while the forward rotation of the cargo handling arm is performed. A container handling vehicle in which the container is loaded on a chassis by movement, and the hook is located within the allowable engagement range when the vehicle moves backward and approaches the container when loading the container. An engagement allowable range detecting means for detecting, and an engagement allowable range notifying means for receiving an output from the engagement range detecting means and notifying that the hook is located within the engagement allowable range. This Container handling vehicle according to claim. 7. A cargo handling arm having a hook at a tip thereof is rotatably supported on the chassis so as to be rotatable in the front-rear direction of the vehicle body. A central hook engaging member is provided so as to engage the container, and in a state where the hook and the central hook engaging member are engaged, the container is unloaded from the undercarriage by rotating the cargo handling arm backward, while the cargo handling is performed. A container handling vehicle in which the container is loaded on a chassis by a forward rotation of an arm, wherein the hook is detachably engaged from at least one side of the central hook engaging member from a side. A container handling vehicle comprising a side hook engaging member.