JP3110243B2 - Container jump prevention device for cargo handling vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to a preventing device container lift-up is Ri to prevent Ri is pop-in was loaded on a vehicle body frame of the cargo handling vehicle container.

[0002]

2. Description of the Related Art In general, a cargo handling vehicle is provided with a dump frame pivotally supported at the rear end of a vehicle body frame so as to be tiltable rearward of the vehicle body, and pivotally supported at a leading end side of the dump frame so as to be rotatable in the vehicle longitudinal direction. The container is moved back and forth on the vehicle body frame by the rotation of the cargo handling arm with respect to the dump frame, and the container is tilted about the rear end of the vehicle body frame to thereby move the container between the ground and the vehicle body frame. while you Ro loading descending in is configured to be tilted rearward containers on the vehicle body frame by integrally tilting the dump frame and the handling arm.

[0003] In such an cargo handling vehicle, or acts vehicle body vibration transmitted from the road surface, the container for the dump frame which occurs when or perform such tilting operation by the dump frame lift-up is Ri and also those with prevention device container lift-up is Ri which is adapted to prevent the engagement between the container and the dump frame. As the container lift-up is Ri prevention device, for example, Kokoku 1-2
As disclosed in Japanese Unexamined Patent Publication No. 3335, an engagement member having a substantially L-shaped cross section whose base end portion is rotatably supported by a dump frame is provided on a container. An engaged member having an engagement concave portion with which the portion is disengageably engaged, and an appropriate rotation in a direction cooperating with the engagement member, the tip of which is engaged or disengaged from the engaged member. and retractable hydraulic cylinder for, while the distal end portion of the engaging member in a state where the container is incorporated seen costing the vehicle body frame to extend the hydraulic cylinder so as to engage the engaged member, the vehicle body frame and the ground lock the container to the dump frame in a state where the top portion of the engaging member and a control means for contracting the hydraulic cylinder so as to leave the engaged member, mounted on the vehicle body frame when to Ro descending Masonry container between When the body vibration occurs or the dump frame tilts It has been known that as lift-up of the container to prevent the Ri at the time.

[0004]

[SUMMARY OF THE INVENTION However, the conventional container pop-is Ri prevention device smoothly engaged to so that the distal end portion of the engaging member relative to the engagement recess of the engaged member, the tip since part has a gap in a state engaged with the engaging recess in the vertical direction between the both member is present, rattling occurs between the both member during body vibration occurs or dumping frame tilt, working This will discomfort the workers. Further, at the time of engagement of the tip and the engaging recess, since the motion only in gap between the both portions material is acceptable, significant load between both sections material when pop-the Ri force of the container is large but there is a possibility that the both member may be damaged in action. Furthermore, there is for engaging and disengaging operation of the engagement member is performed by the hydraulic cylinders and control means, on the container lift-up is Ri prevention device is expensive, a problem that the configuration becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to urge an engaging member in a direction in which the engagement with the engaged member is secured. and while reliably preventing breakage of the backlash and the members between the engaged member, abolished the hydraulic cylinders and control means to provide a prevention device Ri is inexpensive and simple configuration of the container lift-up is there.

[0006]

To achieve the above object, according to an aspect of the present invention, the dump as prevention device container lift-up is Ri cargo handling vehicle, which is tiltably axially supported to the rear of the vehicle body to the rear portion of the vehicle body frame A frame, and a cargo handling arm pivotally supported at the front end side of the dump frame so as to be rotatable in the vehicle longitudinal direction,
While it Ro descending stacked between the upper ground and the vehicle body frame to the container by tilting around the vehicle body frame rear causes back and forth movement of the container on the vehicle body frame by the rotation of the handling arm relative to the dumping frame, dumping a cargo handling vehicle that is configured to be tilted rearward containers on a vehicle body frame by integrally tilt the frame and cargo handling arm
Then, the jump of the container with respect to the dump frame
Container lifting device for cargo handling vehicles to prevent
The elephant took the following solutions.

That is, a solution taken by the invention of claim 1
The deciding means is formed in one of the above-mentioned dump frame and the container by cutting out in a substantially L-shape at the tip end side and extending in the horizontal direction.
Guide side and a stop side extending in the vertical direction following the guide side.
The arm-shaped engaging member having a notch engaging portion consisting of and rotatably supported, while the said engaging member during movement completion of the loading seen the direction of the containers incorporated seen product on the vehicle body frame Notch
While engaged with the engaging portion come notch of the engagement member during the movement start in the direction Shi descending Ro of the containers to be filtered descending from the vehicle body frame
And a shaft-shaped engaged member detached from the engaging portion. Furthermore, constantly urged in the direction of lashing the engagement of the engaged member by an urging member the engagement member. And
When the engaged member engages with the notch engaging portion, the engaged portion
When the material is pressed against the guide side, the urging force of the urging means
The engaging member is rotated in the release direction to
The mating member is received in the notch engaging portion, and the engaged member
By stopping the contact with the stop side, the engaged member is
To secure the engagement between the engaged member and the engaging member.
It is those that have configured to.

According to a second aspect of the present invention, an engaging member according to the first aspect of the present invention is specified, and the engaged member is notched at a tip end of the engaging member . A guide roller for guiding the guide side is provided.

[0009]

According to the above-mentioned structure, according to the first aspect of the present invention,
When containers incorporated seen costing the vehicle body frame ing the nearing completion move the loading viewed direction (vehicle front side), engaged members against the biasing force of the biasing member engaging member lashing relative shift <br/> moving the engagement direction along the guide edge of the notch engaging portion while the release direction rotation, the engagement with the engaging member by abutment stops on the line stop edge
Are lashing, As a result, loading the actual operation of the container is completed. In that case, the notch engaging portion of the engaging member, since the biasing member is constantly urged in the direction of lashing the engagement between the engaging member is attached by pressing, notch engagement of the engaging member without the presence of gap between the both members in a state in which the engagement portion is engaged with the engaged member, never rattling occurs between the both member at the vehicle body vibration occurs or dump frame tilt. Moreover, the load when significant load between the two members is applied by a large lift-up is Ri force of the container, which follows the engaged member side tip portion is a load acting direction, acting between the both members Can be absorbed.

On the other hand, when the container is filtered descending from the vehicle body frame begins to start moving to the <br/> descending Ro Shi direction (the rear of the vehicle body), the engaged
Member relative shift <br/> movement to release de-direction along the guide edge of the notch engaging portion, lashing releasing direction the engaged member against the biasing force of the biasing member engaging member to while rotating disengaged from the engagement member, withdrawal operation of the engaging member and the engaged member is adapted to complete the movement start Shi Ro descending container.

According to the second aspect of the present invention, when the engaged member is engaged with the engaging member, the engaged member is guided by the guide roller at the leading end of the engaging member to the guide side of the notched engaging portion. Smooth
Relative to the locking side, which is the engaging and securing position.
Since the dynamic, wear due to mutual contact of the engaging member and the engaged member is effectively suppressed.

[0012]

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

FIG. 3 shows the structure of a cargo handling vehicle 1 according to an embodiment of the present invention. Reference numeral 2 denotes a vehicle body frame of the vehicle 1 continuously provided behind a driver's seat 3, and reference numeral 4 denotes a vehicle body frame. a sub-chassis, on the sub-chassis 4, unloading device 6 which enables Shi bath product containers 5 between its sub-chassis 4 (body frame 2) and on the ground are mounted. The rear surface of the container 5 is formed as a tailgate 7 whose upper end is pivotally supported by an upper pivot (not shown) and can be opened backward and downward. Reference numeral 8 denotes a main girder of the container 5.

The loading / unloading device 6 is pivotally supported at the rear end of the sub-chassis 4 so as to be tiltable rearward around a horizontal axis 11. The dump frame 12 is located on the rear of the sub-chassis 4. A substantially L-shaped loading and unloading arm 14 connected at the front end (tip) to be able to undulate around a horizontal axis 13, and provided at the tip of the loading and unloading arm 14;
Container transporting hook 15 removably engaged with an engaging pin 5a provided at the upper end of the front surface of the container 5.
And

The cargo handling arm 14 has a cylindrical guide member 16 extending horizontally forward from a base end (rear end) connected to the dump frame 12, and is slidably fitted in the guide member 16. A sliding member 17 having a substantially L-shape mounted thereon, and an extendable telescopic cylinder 18 linked between the guide member 16 and the sliding member 17. The sliding member 17 slides forward and backward with respect to the guide member 16. In this case, in the state in which the sliding member 17 relative to the guide member 16 and the state clogging telescopic cylinder 18 which sliding is allowed <br/> rearwardly to contract, only handling arm 14 with respect to the dump frame 12 is horizontal axis The container 5 is rotatable around 13 to allow the container 5 to be loaded and unloaded . On the other hand, in the state of being stretched state, i.e. telescopic cylinder 18 which does not slide a sliding member 17 rearward with respect to the guide member 16, the cargo handling arm 14 is unrotatable the horizontal axis 13 around the dump frame Rotation around the horizontal axis 11 at the rear end of the sub-chassis 4 integrated with the cargo handling arm 12 and the cargo handling arm 14, that is, a dumping operation is enabled.

A lift cylinder 19 rotates between a portion near the rear end of the horizontal portion of the cargo handling arm 14 and a front front position of the sub chassis 4 via a horizontal shaft (not shown). It is movably supported. That is,
In a state in which the telescopic cylinder 18 is contracted (sliding Dojo state rearward of the sliding member 17), the upright state rotates handling arm 14 rearward when the lift cylinder 19 is extended, the lift cylinder 19 is contracted When it does, the cargo handling arm 14 is rotated forward to fall down.
Reference numeral 20 denotes a guide roller provided at the rear end of the sub-chassis 4 for guiding the container.

[0017] Here, tilting tilting loading descending Ro to actuation procedure, and a container 5 on the sub-chassis 4 between the container <br/> Na 5 Ri by the container handling vehicle 1 and the sub-chassis 4 above the ground The procedure will be described with reference to FIGS.

First, from the mounted state shown in FIG.
The if you Ro descending on the ground, stretching the cylinder 18 is contracted to move the container 5 to the rear, largely moving the rear to the rear of the sub-chassis 4. Next, when the lift cylinder 19 is gradually extended, only the cargo handling arm 14 is bent with the horizontal shaft 13 at the front end of the dump frame 12 as a fulcrum, and the container 5 tilts around the guide roller 20 by its own weight, and slidingly by rollers 20 above, as shown in FIG. 4, the container 5 is later filtered on the ground.

The mounting of the container 5 on the sub-chassis 4 is performed by performing the operation reverse to the above operation.

On the other hand, when the container 5 is tilted from the state shown in FIG. 3, if the lift cylinder 19 is extended without changing the expansion / contraction cylinder 18, the cargo handling arm 14 with the horizontal shaft 13 as a fulcrum is used. the rotation is impossible, and tilting the dump frame 12 and the cargo handling arm 14 rearward in the horizontal axis 11 around integrally, the container 5 as shown in FIG. 5 is tilted. Thereby, the tail gate 7 is opened and the contents in the container 5 are discharged.

As a characteristic part of the present invention, as shown in FIGS. 1 and 2, between the outer side of the dump frame 12 and the inner side of the main girder 8 of the container 5, the sub-chassis 4 is provided. dump frame of the container 5, which is mounted on a single
2 pair of container pop-to prevent lift-up is Ri for the Ri preventing device 21 (shown only those of the vehicle body left side in the figure) is provided.

[0022] The container lift-up is Ri prevention device 21, the front end (base end) of the dump frame 12 (one) engaging arm like that is pivotally supported via a horizontal pin 22 on the outside presence portion of the A mating member 23, a shaft-shaped engaged member 24 that protrudes horizontally inward of the vehicle body from a rear portion of the inner surface of the main girder 8 of the container 5 (the other side), and a distal end side of the engaging member 23.
(The lower surface right end) is formed by him Switching Operation deletion in a substantially L shape, previously
A guide side 25a extending in the horizontal direction on the end side and the guide side 2
The have a line stop edges 25b extending in the vertical direction followed 5a
Notch engaging portion 25 for detachably engaging engaged member 24
And the lower surface of the dump frame 12 and a substantially lower intermediate portion of the engaging member 23, and fix the engagement between the engaging member 23 and the engaged member 24 in the notch engaging portion 25. a biasing spring 26 as an urging member for urging the tip end portion of the engaging member 23 to come direction, that downward of strapping, provided on the outer side surface of the dump frame 12, to the engaging portion 25-out the cut-out limit position, ie the engagement member 23 engages in a position obtained by slightly rotating below a position where it engages with the engaged member 24 member 23 to allow the engagement of the rear of the vehicle body of the engaged member 24 And a stopper 27 having a substantially U-shaped cross section for holding the contact against the urging force of the urging spring 26.

The engagement member 23 (notch engagement portion 25)
The guide side 25a is formed by notching the engaged member 24
5 for guiding to the back (stop side 25b).
The stop side 25b stops the contact of the engaged member 24.
Position and the engagement between the engagement member 23 and the engaged member 24
They are shackled.

On the other hand, the engaged member 24 is located on the vehicle body frame 2.
When the movement of the container 5 to be loaded in the loading direction is completed
To engage with the notch engagement portion 25 of the engagement member 23
, The direction in which the container 5 is unloaded from the body frame 2
Notch engagement portion 25 of the engagement member 23 at the start of movement to
It is designed to withdraw from.

One end of the urging spring 26 is notched. The first bracket 26 is provided at the lower end of the locking side 25b of the engaging portion 25.
a, and the other end is supported on the lower surface of the dump frame 12 via a second bracket 26b. The engaging member 23 is provided with the urging spring 2.
6 in the direction in which the engagement with the engaged member 24 is secured.
The engagement member 24 is always urged and the notch engagement portion 25
When the member 24 is engaged with the guide side 25a,
By stopping the contact, the urging force of the urging spring 26 is prevented.
And the engaged member 24 is rotated
The engagement member 25 receives the engagement portion 25 and
5b, the notched engaging portion 25 engages the engaged portion.
The member 24 is pressed to secure the engagement with the engaged member 24.
It is configured as follows.

The engaged member 24 is fixed so as not to rotate with respect to the main girder 8. Then, the preventing device 21 bounce the container be provided with a guide roller 29 which is rotatably supported via the rear end (distal end) portion horizontal pin shaft 28 on the outer surface of the engaging member 23 ,container
Loading when moving the viewing direction so as to guide the guide edge 25a of the engaged member 24 notched engaging portion 25 a.

Next, the operation of the container jumping prevention device 21 will be described.

First, the engaged member 2 is
When engaging the 4, when the container 5 to be incorporated seen product on the vehicle body frame 2 Ru Do <br/> the nearing completion move the loading viewed direction (vehicle front side), engaged member 24 is guide roller 29 is guided along the guide edge 25a of the cutout engaging portion 25 while rotating upward (direction lashing disengaged) against the biasing force of the biasing spring 26 the engagement member 23 to the When moving forward, the engaged member 24 stops the notch engaging portion 25 when the container movement is completed.
The contact with the female side 25b is stopped, and the engagement with the engagement member 23 is completed.

On the other hand, the engaged member 2 is
If disengaging the 4, begins to start moving the container 5 to be filtered descending from above the vehicle body frame 2 Shi Ro descending direction (the rear of the vehicle body),
The engaged member 2 extends along the guide side 25a of the notch engaging portion 25.
4 moves rearward, and the engaged member 24
9 is guided by the upper to the rotation against the engagement member 23 to the biasing force of the biasing spring 26, the該被engagement member 24 so as to leave work disengaged from the engaging member 23 is completed ing.

As described above, in the above embodiment, the engagement member 2
Notch engaging portion 3 25, with the bias spring 26 is constantly urged in a direction (downward-out) for lashing the engagement between the engaging member 24 to push to said engaging member 24 So that
When the notch engagement portion 25 (engagement member 23) is engaged with the engaged member 24, there is no gap between the two members 24, 25, and when vibration of the vehicle body occurs or the dump frame tilts, There is no backlash between the two members 24 and 25,
Discomfort to the worker can be eliminated.

[0031] Moreover, when a significant load between the two members 24 and 25 is applied by a large lift-up is Ri force the container 5, to follow the swinging direction cutout engaging portions 25 is the load acting direction Thus, the load acting between the two members 24 and 25 can be absorbed, and damage to the two members 24 and 25 can be prevented.

[0032] In addition, prevention device container lift-up is Ri 21
Are engaged members 23 ( notch engaging portions 25), engaged members 2
4, the biasing spring 26, since it is constituted by the stopper 27 and the guide roller 29, expensive and complex components such as a hydraulic cylinder or the control means is not required, the preventing device 21 container lift-up is Ri inexpensive And the configuration can be simplified.

Further, the engaged member 24, by being guided to disengaging operation completion position the engagement member 23 by the guide roller 29 of the engaging member 23 tip, the container 5
The loading movement and during the engaging and disengaging operation of the engagement member 23 and the engaged member 24 during movement of the descending Ro Shi direction of the container 5 in the viewing direction is smoothly engaging member 23 and Hikakari Joint member 24
Wear due to mutual contact with can be effectively suppressed.

Next, a modification of the above embodiment will be described.

FIG. 6 shows a first modification, in which the arrangement of the engaging members and the engaged members is changed.

[0036] That is, in this modification, as shown in FIG. 6, prevention device 31 container lift-up is Ri is pivoted rear end through a horizontal pin 32 to the main beam 8 inside surface rear portion of the container 5 An arm-shaped engaging member 33 which is rotatably supported; a shaft-shaped engaged member 34 which protrudes horizontally outward of the vehicle body from a front portion of the outer surface of the dump frame 12; are formed by cutting Ri off in a substantially L shape on the lower surface front end portion,
A guide side 35a for detachably engaging the engaged member 34
Notch engaging portion having 及 beauty line stop edge 35b (the tip portion) 3
5, the inner side surface of the main girder 8 and the stop side 3 of the engaging member 33.
5b between the first and second brackets 36a,
Is linkage through 36b, biasing spring 36 for urging the front end portion of the engaging member 33 to come direction, that upward for lashing the engagement of the engaged member 34 in the notch engaging portion 35
When, with the main provided on the inner surface of the digit 8, the engaging member 33 engages in a position obtained by slightly rotating below a position where it engages with the engaged member 34 member 33 an urging spring 36 A stopper 37 having a substantially U-shaped cross section for abutting and holding against the force and a guide roller 39 rotatably supported at the rear end of the engaging member 33 via a horizontal pin shaft 38 are provided. It is configured. The other configuration of the prevention device 31 container lift-up is Ri are the same as in the embodiment, the same members, and description thereof will be denoted by the same reference numerals configuration is omitted.

[0037] Also in this modification, prevention device 31 container lift-up is Ri, the engaged member 34 is engaged member upon movement of the loading seen the direction of the container 5 to be incorporated seen product on the vehicle body frame 2 33 is pushed downwards against the urging force of the urging spring 36, and moves rearward along the guide side 35a of the notch engaging portion 35. When the container movement is completed, the engaged member 34
There while engaging operation is completed to the engaging member 33 to abut stops on the line stop edge 35b of the notch engaging portion 35, to descending Ro Shi direction of the container 5 to be filtered descending from above the vehicle body frame 2 At the start of the move
The engaged member 3 extends along the guide side 35a of the notch engaging portion 35.
When the member 4 moves forward and separates from the engagement member 33, the separating operation is completed.

FIG. 7 shows a second modification, in which the loading / unloading device is changed.

That is, in this modification, as shown in FIG. 7, the loading / unloading device 41 includes a dump frame 42 pivotally supported at the rear end of the sub-chassis 4 so as to be tiltable rearward around the horizontal axis 11. A guide member 43 having a substantially U-shaped cross section fixed to a front inner surface side of the dump frame 42, a cargo handling arm 44 connected at the front end of the dump frame 42 to be able to undulate around the horizontal axis 13, The container carrying hook 15 provided at the tip of the cargo handling arm 44 is slidably fitted in the guide member 43, and the cargo handling arm 4
Slider 4 provided at the side end of a slide shaft 45 supported by the slide 4
6, a lift cylinder 47 pivotally supported between the center of the sliding shaft 45 and the rear front position of the sub-chassis 4, and provided at a substantially middle portion of the upper surface of the guide member 43, A notch 48 that allows the slider 46 to be pulled out of the guide member 43 when the slider 46 is positioned, and a horizontal shaft 49 that is rotatably supported in the middle of the dump frame 42.
A locking piece 50 provided at the rear end of the cargo handling arm 44 and capable of engaging with the horizontal shaft 49 when the cargo handling arm 44 is retracted;
A rocking arm 51 whose base end is fixed to a substantially middle portion of the horizontal shaft 49 and extends forward, and whose front end rocks between a position where it can be engaged with the sliding shaft 45 and a position where it cannot be engaged. And The other configuration of the loading / unloading device is the same as that of the embodiment, and the same members and configurations are denoted by the same reference numerals and description thereof will be omitted.

In this modification, the container 5
When loading / unloading the swing arm 51,
Is swung to the disengageable position, and then the lift cylinder 47 is extended, so that the cargo handling arm 44 is moved rearward while guiding the slider 46 in the guide member 43, and the locking piece 50 is At the same time, the slider 46 is positioned at a position corresponding to the notch hole 48, and only the loading arm 44 is supported by the horizontal shaft 49 together with the slider 46 that has come out of the guide member 43 by the extension of the lift cylinder 47. The container 5 is slid on the guide roller 20 by its own weight to descend on the ground.

In order to mount the container 5, an operation reverse to the above operation is performed.

On the other hand, when the container 5 is tilted,
By rotating the horizontal shaft 49 to swing the swing arm 51 to the engagement position and then extending the lift cylinder 47, the swing arm 51 is moved before the slider 46 comes to the position corresponding to the notch hole 48.
And the sliding shaft 45 are engaged to restrict the rearward movement of the cargo handling arm 44, and the dump frame 42 and the cargo handling arm 44 are integrally formed via the sliding shaft 45 and the guide member 43 by further extending the lift cylinder 47. In the coupled state, the dump frame 42 is tilted rearward around the horizontal axis 11 at the rear end,
The container 5 is tilted.

FIG. 8 shows a third modification, in which the cargo handling arm is changed.

That is, in this modification, the cargo handling arm 61
Are horizontal and vertical members 62 and 63
And a telescopic cylinder 64 whose both ends are pivotally supported between a tip of the horizontal member 62 and the vertical member 63 via a shaft (not shown).
And The drop-off device 65, the dump frame 66, and the handling arm 61,該荷combination arm 61
Via a horizontal shaft (not shown) between a container transport hook 15 provided at the tip of the sub-chassis 4 and a portion of the cargo handling arm 61 near the rear end of the horizontal member 62 and the rear front position of the sub-chassis 4. A lift cylinder 67 is supported, and in a state where the vertical member 63 is bent with respect to the horizontal member 62, that is, in a state where the telescopic cylinder 64 is extended, the horizontal axis of only the cargo handling arm 61 with respect to the dump frame 66. In the state in which the vertical member 63 is not bent with respect to the horizontal member 62, that is, in the contracted state in which the telescopic cylinder 64 is not extended, the rotation of the cargo handling arm 61 about the horizontal axis 13 is impossible. Is done. The loading / unloading device 6
Other configurations of 5 are the same as those of the embodiment, and the same members and configurations are denoted by the same reference numerals and description thereof will be omitted.

In this modification, the container 5
The if you Ro descending on the ground, telescopic cylinder 64 is the extension to move the container 5 to the rear, largely moving the rear to the rear of the sub-chassis 4. Next, when the lift cylinder 67 is gradually extended, only the cargo handling arm 61 bends with the horizontal shaft 13 at the front end of the dump frame 66 as a fulcrum, and the container 5 slides on the guide roller 20 by its own weight to move to the ground. It is later filtered.

In order to mount the container 5 on the sub-chassis 4, the reverse operation is performed.

On the other hand, when the container 5 is tilted,
If the lift cylinder 67 is extended and operated without extending the telescopic cylinder 64, the rotation of the cargo handling arm 61 with the horizontal shaft 13 as a fulcrum becomes impossible, and the cargo handling arm 61 is horizontally moved integrally with the dump frame 66. Axis 1
The container 5 is tilted backward by one turn and tilted.

It should be noted that the present invention is not limited to the above-described embodiment and each modified example, but includes other various modified examples. For example, in the above-described embodiment, the urging spring 26 is used as the urging member. However, it is needless to say that an urging member such as a damper or an elastic body may be used. In the above embodiment, the urging spring 26 (or 36) is linked between the dump frame 12 and the engaging member 23 (or between the main beam 8 and the engaging member 23). A biasing spring wound around a horizontal pin so as to be biased in the engaging and securing direction of the engaged member may be used .

[0049]

As above, according to the present invention, according to prevention device container lift-up is Ri cargo handling vehicle in the invention of claim 1, wherein the engagement
Since attach to atmospheric Toki押a notch engaging portion in the direction of lashing the engagement with the engaged member of members of the workers to prevent rattling when the vehicle body vibration occurs or dumping frame tilting it is possible to eliminate the discomfort can be both said member is absorbed by the tracking of the tip tremendous loads due to a large lift-up is Ri force of the container between the both members to prevent breakage. Moreover, the engagement member, constitutes a prevention device container lift-up is Ri by the engaged member and the biasing member, the expensive and complicated construction member such as a hydraulic cylinder or the control means is unnecessary, thus the container lift-up is The anti-slip device can be inexpensive and simple in construction.

[0050] Further, according to the preventing device container lift-up is Ri cargo handling vehicle in the invention of claim 2, wherein, upon movement of the product <br/> Write-direction of the container by the guide rollers of the engaging member tip to be Having guided engagement member guide edge of the notch engaging portion smoothly, due to the mutual contact between the engaging member and the engaged member
It is possible to effectively suppress the wear.

[Brief description of the drawings]

1 is a side view of a container lift-up is Ri apparatus viewed from the side of the vehicle according to an embodiment of the present invention.

Figure 2 is a rear view of the same container lift-up is Ri apparatus viewed from the rear of the vehicle body.

FIG. 3 is a side view of the cargo handling vehicle with the container mounted.

FIG. 4 is a side view of the cargo handling vehicle showing a state where the container is being lowered to the ground.

FIG. 5 is a side view of the cargo handling vehicle in a state where the container is tilted.

FIG. 6 is a diagram corresponding to FIG. 1 according to a first modified example.

FIG. 7 is a diagram corresponding to FIG. 3 according to a second modification.

FIG. 8 is a diagram corresponding to FIG. 3 according to a third modification.

[Explanation of symbols]

1 cargo handling vehicle 2 vehicle body frame 5 a container 12,42,66 dump frame 14,44,61 handling arm 23, 33 engaging members 24 and 34 engaged members 25 and 35 engaging portion (tip) biasing 26,36 spring (biasing member) 21, 31 container lift-up is Ri prevention device 29, 39 the guide roller

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-54-40418 (JP, A) JP-A-52-79429 (JP, A) JP-A-5-319160 (JP, A) Japanese Utility Model Sho-63 23140 (JP, U) Hira 4-58434 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60P 1/04 B60P 1/273 B60P 1/48 E05B 65/44- 65/46

Claims (2)

(57) [Claims] 1. A dump frame pivotally supported at the rear end of a vehicle body frame so as to be tiltable rearward of a vehicle body, and a cargo handling arm pivotally supported at a front end side of the dump frame so as to be rotatable in the vehicle longitudinal direction. provided, whereas to Ro descending stacked between the upper ground and the vehicle body frame to the container by tilting around the vehicle body frame rear causes back and forth movement of the container by the rotation of the handling arm relative to the dumping frame on the vehicle body frame in cargo handling vehicle that is configured to be tilted rearward containers on a vehicle body frame by integrally tilting the dump frame and the handling arm, the container relative to the dump frame
Prevents container handling of cargo handling vehicles from jumping
An apparatus, wherein one of the dump frame and the container includes :
A guide side that is cut out in a substantially L-shape on the tip side and extends in the horizontal direction
And a vertical stop side that follows the guide side.
Arm-shaped engaging member having a notch engaging portion is rotatably supported, the other, the at movement completion to loading seen how <br/> direction of containers incorporated seen product on the vehicle body frame while engaged in the notch engaging portion of the engaging member, a shaft shape disengaged from the notch engaging portion of the engaging member at the start of movement in the direction Shi descending Ro of the containers to be filtered descending from the vehicle body frame engaged member is provided et al are of the engagement member, the biasing member is constantly urged in the direction of lashing the engagement of the engaged member, the engaged member is above switching
When engaging with the notch engaging portion, the engaged member presses against the guide side.
Contact release against the urging force of the urging means
To the engaged member in the notch engaging portion,
The notch engages when the engaging member stops abutting against the stop side.
The mating portion presses the engaged member to fix the engagement with the engaged member.
Container lift-up of the cargo handling vehicle, characterized in that it is configured to strapping the Ri prevention device. 2. A container lifting device for a cargo handling vehicle according to claim 1, wherein a guide roller for guiding said engaged member to a guide side of said notch engaging portion is provided at a tip portion of said engaging member. There <br/> Ri prevention device.