JPH037632A - Dolly - Google Patents

Abstract

PURPOSE:To lower and put a load-carrying platform on the ground so as to facilitate the handling thereof by providing a dolly comprising a traveling vehicular body, damping frame, load-carrying platform, movable frame and load- carrying platform elevator. CONSTITUTION:A movable frame 2 and a movable frame base 6 are protruded rearward by a manual manner and a damping frame 3 is damped under the expansion of a damping cylinder 29, so that the grounding body 20 of the movable frame base 6 is grounded and a load-carrying platform 1 is lowered by operating a winch C along the damping frame 3. Next, the rear end of the movable frame base 6 is received by a elevating arm 5 and the movable frame 2 and the movable frame base 6 which mount the load-carrying platform l is put on the ground by operating the elevating cylinder 10. Besides, in the case of loading of the load-carrying platform 1, the action is vice versa. Thus, it is possible to facilitate the handling of the load with safety.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a transport vehicle equipped with a loading platform, in which the loading platform can be unloaded from a traveling vehicle body and placed on the ground.

(b) Prior art Conventionally, when loading a traveling work vehicle such as a tiller or tractor on the loading platform of a transport vehicle, the loading platform itself has been moved backwards so that there is no need to provide a separate footboard and the loading platform can be safely loaded. The technology that allows the robot to move and tilt its rear end to the ground (lF!) is known to the public.

For example, there is a technique described in Japanese Utility Model Application Publication No. 56-102247.

(c) Problems to be Solved by the Invention However, even in the conventional technology, the loading platform can be tilted with its rear end touching the ground, like a footboard.
After all, the operator must drive the loaded vehicle and transport it onto the slippery loading platform, which involves some degree of danger and requires a high degree of skill.

In the present invention, the loading platform can be tilted, and can be lowered one step further to a state parallel to the ground.

This allows the vehicle to easily load other cargo onto a platform placed horizontally on the ground, and requires the operator to be skilled at mechanically operating the platform lifting device. The structure is such that the cargo platform can be easily stored back to its original position without any trouble.

(d) Means for Solving the Problems The objects of the present invention are as described above. Next, the structure for achieving the objects will be explained.

A traveling vehicle body, dump frames 3L and 3R, and a loading platform 1.
It is composed of movable frames 2L and 2R and a platform lifting device.

Further, the loading platform 1, the movable frames 2L, 2R, and the loading platform lifting device can be connected to the traveling vehicle body and the dump frames 3L, 3R.

Further, an elevating cylinder 10 is provided on the vehicle body side, and an elevating arm 5
The L and 5R pivot shafts 14 are arranged in front of the rear wheels.

In addition, when the loading platform 1 is in the retracted state, the dump flaps L, 3L, 3
It is supported on the main frame 33 via R, and is configured to slide between the dump frames 3L and 3R and the movable frames 2L and 2R when loading and unloading the cargo platform 1.

In addition, the movable frames 2L and 2R are the dump frame 3L.
・It can slide independently from 3R, and in the stored state, the dump frames 3L and 3
R, and in the pulled out state, the front part is moved by the lifting arm 5.
It was supported by L.5R.

The transport vehicle is also characterized in that the movable frames 2L and 2R are capable of being raised and lowered by supporting the front parts with lifting arms 5L and 5R while the rear parts are on the ground.

Furthermore, a grounding device is provided at the rear of the movable frames 2L and 2R.

Further, the grounding device is a traction wheel 34.

Further, in a configuration in which the engagement pins 8L and 8R provided at the front ends of the movable frames 2L and 2R are engaged with the lifting arms 5L and 5R, the engagement pin 8 is made detachable.

(E) Embodiment The terms and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Fig. 1 is an overall side view of the transport vehicle of the present invention, Fig. 2 is an overall plan view, Fig. 3 is a side view with movable frames 2L and 2R pulled out rearward, and Fig. 4 is a plan view. , Fig. 5 is a side view of the dump frames 3L and 3R in a tilted state, and Fig. 6 is a state in which the cargo platform bow lifting device c is loosened and the cargo platform 1 is moved downwardly to the rear along the inclined surface of the dump frames 3L and 3R. The side view of FIG. 7 shows how the movable frames 2L and 2R, the loading platform frames 4L and 4R, and the loading platform 1 are moved by the loading platform lifting device.
Fig. 8 is a side view of the loading platform 1 with the rear plate 23 folded backwards to form a footboard; Fig. 9 is a side view of the cargo platform 1 with the rear plate 23 folded backwards and used as a footboard; Fig. 9 shows the movable frames 2L and 2R and the dump frames 3L and 3.
Rear sectional view of R and loading platform frames 4L and 4R, 1st
Figure 0 is an enlarged rear sectional view of the dump frame side rolling wheels 21 and movable frame side rolling wheels 22, Figure 11 is a plan view, and Figure 12 is a side view of the platform lifting device C.
The figure shows the dump frame side roller 21 and the movable frame side roller 2.
2, FIG. 14 is a plan sectional view of the engaging pin 8 in a state where it can be freely engaged and detached, FIG. 15 is a side view of the same, FIG. 16 is a side view of the grounding device, and FIG. 17 is a plan sectional view of the Figure, 1st
FIG. 8 is a side view of an embodiment in which traction wheels 34 are provided at the rear of the loading platform 1.

The overall configuration will be explained with reference to FIGS. 1 and 2.

A skeleton vehicle that supports the traveling vehicle body A by front wheels 18, 18 and rear wheels 19, 19 and drives the wheels by an engine inside the bonnet B is manufactured by an automobile manufacturer and delivered to a specially equipped vehicle manufacturer that installs special equipment. It will be done.

Further, a vertical support rod 36 is protruded from the running vehicle body A of the skeleton vehicle, a main frame 33 is supported thereon, and dump frames 3L and 3R are attached to the main frame 33 via dump rotation shafts 17L and 17R, There are also special vehicles on the market that are equipped with a dump cylinder 29 and are designed for dumping.

The present invention constructs a special transport vehicle capable of lowering the loading platform 1 to a horizontal level by attaching a loading platform 1, movable frames 2L and 2R, and a loading platform lifting device to this special dumping vehicle.

The traveling vehicle body A bends upward at the rear wheel 19, and the rear wheel 19
The traveling vehicle body A is provided with a lifting cylinder 10, lifting arm pivots 18L and 18R, and a pivot shaft 14.
, and the midway portions of the lifting arms 5L and 5R are pivotally supported on the pivot shaft 14.

Further, the pivot shaft 14 is disposed forward of the rear ends 19, 19 and between the front wheels 18, 18.

Further, loading platform frames 4L and 4R are fixedly installed at the bottom of the loading platform 1, and when the loading platform frames 4L and 4R are in the retracted state as shown in FIG. The dump frame 3L is supported.
3R is fixed to the dump frame bases 16L and 16R, and the dump frame bases 16L and 16R and the dump rotation shafts 17L and 17R rotate the rotation shaft frames 15L and 1.
5R, and the rotating shaft frames 15L and 15R are fixed on the main frame 33.

Engagement pins 8L and 8R are protruded from the front ends of the movable frames 2L and 2R, and when the movable frames 2L and 2R are pulled out rearward, the engagement concave body 7L of the platform lifting device
・Constructed to be fitted and locked into 7R.

As shown in FIG. 2, one lifting cylinder 10 is provided only on the right side of the aircraft body.

Further, as shown in FIG. 12, the dump frame 3
A support rod is installed between the front ends of L and 3R, and a loading platform lifting device C is disposed in this portion. A front pulley 11 around which the winch wire 24 of the platform lifting device C is wound is fixedly installed between the platform frames 4L and 4R. The rear end of the winch wire 24 is fixed to the lower part of the loading platform 1 via a wire fixing member 35.

Grounding bodies 2OL and 20R constituting a grounding device are pivotally supported between the rear ends of the movable frames 2L and 2R.

Further, the rear end of the dump cylinder 29 is pivotally supported by the traveling vehicle body A, and the front end is pivotally supported by an erection rod installed between the dump frames 3L and 3R.

Next, the specific configuration will be explained with reference to FIGS. 9 to 11.

Rotating shaft frames 15L and 15R are fixed to the rear part of the main frame 33 supported from the traveling vehicle body A via a vertical support rod 36, and dump rotating shafts 17L and 17R are pivotally supported on the rotating shaft frames 15L and 15R. ing. The dump rotation shaft 17L
- The inside of 17R is pivotally supported by dump frame bases 16L and 16R.

The dump frame bases 16L and 16R are composed of square pipes, and are configured as structural members that support the weight of the loading platform 10, and the dump frame bases 16L and 16R are constructed of square pipes, and are configured as structural members that support the weight of the loading platform 10.
Dump frames 3L and 3R, which open in a U-shape in the facing direction and constitute fitting rails for the dump frame side rolling wheels 21, are fixed on top of the dump frames 6R.

Since the U-shaped dump frames 3L and 3R cannot sufficiently support the weight of the loading platform 1 and the loaded object, the dump frame bases 16L and 16R are arranged in several stages below.

The dump frames 3L and 3R and the dump frame base 16
The front ends of L and 16R integrally rotate up and down about the dump rotation shafts 17L-17R, but they only rotate and do not slide back and forth.

As described above, the loading platform bow raising device C is fixed between the dump frames 3L and 3R and the dump frame bases 16L and 16R.

Further, as shown in FIGS. 10 and 13, dump frame side wheels 21 are provided within the rail frames of the dump frames 3L and 3R.
2, 21b, and 21c will be able to join and be transferred.

The dump frame side wheels 21 are wheel shafts 9a, 9b, 9c.
The roller shafts 9a, 9b, and 9c are fixed to the carrier frames 4L and 4R.

In addition, a movable frame side roller 22 is fixed to the other end of the roller shafts 9a, 9b, and 9c.
2 is constructed from the same "U" shaped member, but is loosely fitted inside the movable frames 2L and 2R, which are arranged facing outward.

The wheel shafts 9 have 9a, 9b, 9C arranged on the left and right from the front, and dump frame cartwheels 1i 21 a, 21. b and 21c, and the movable frame side wheels 22a, 22+) and 22C are loosely fitted.

As shown in FIG. 12, the wheel shaft 9a is attached to the loading frame 4L
The wheel axles 9b and 9C are fixed to the front part of the carrier frame 4R, as shown in FIG. 9b
- 9C, dump frame side wheels 21b and 21c, and movable frame side wheels 22b and 22C move the movable frames 2L and 2R pulled out backwards to the loading platform frame 4L.
- It is configured to maintain a horizontal or inclined state on the extension of 4R.

In addition, since the movable frames 2L and 2R are also made of U-shaped materials, they do not have enough strength to support the loading platform and the loaded items. 6L, 1 2 6R are integrally fixed and reinforced.

Grounding body 20L from the rear end of the movable frame bases 6L and 6R
- The rotational support shafts 37L and 37R of 20R are protruded inward.

Further, a rear pulley 12 is fixed to the rear end position between the dump frame bases 16L and 16R.

Since the rear pulley pulley 12 and the front pulley pulley 11 are fixed to the dump frame bases 16L and 16R,
It moves up and down, but not back and forth.

Next, let me explain about the loading platform lifting device.

As described above, the lifting cylinder 10 rotates the lifting arms 5L and 5R, which are pivotally supported on the pivot shaft 14, and the rear ends of the lifting arms 5L and 5R are fixed to the horizontal rod 13.

Engagement recess bodies 7L and 7R are fixedly provided at two positions on the left and right sides of the horizontal rod 13.

The engaging portions of the engaging recess bodies 7L and 7R and the engaging pins S L and 8R will be explained in FIGS. 14 and 15.

An engagement guide recess body 25 is fixed to the engagement recess bodies 7L and 7R fixed to the horizontal rod 13, and the engagement guide recess body 25
The engaging pins 8L and 8R arranged at the tips of the movable frame bases 6I- and 6R can be inserted into the interior when the movable frames 2L and 2R and the movable frame bases 6L and 6R are moved rearward by being pulled out. There is.

In order to prevent the cough support pins 8L and 8R from being pulled out forward in the fitted state, the engagement hooks 26 are urged by a biasing spring 27 and protrude.

In addition, the engagement pins 8L and 8R are connected to the movable frame bases 6L and 6.
It is not fixed to the movable frame bases 6L and 6R, but can be engaged and detached from the loose fitting holes provided in the movable frame bases 6L and 6R, and when the loading platform 1 is lowered to the ground, the engagement pins 8L and 8R are By pulling out the stop pin 38, the engaging pins 8L and 8R are removed, and the movable frames 2L and 2R and the movable frame base are removed.
&6L, 6R, loading platform frame 4 L, 4R, and loading platform 1 are placed on the ground, and the front part can be removed from the lifting arms 5L, 5R and replaced with another loading platform device placed elsewhere. are doing.

3 4 Next, in Figures 15 and 16, the movable frame base 6
The configuration of the grounding bodies 2OL and 20R supported by L and 6R will be explained.

The grounding bodies 2OL and 20R are equipped with a laminated plate 20b on the lower surface, and a long hole 20a is formed in the vertical plate 2°C that supports the laminated plate 20b.
is opened.

A slide bearing portion 30 is loosely fitted into the elongated hole 2Oa,
The movable frames 2L and 2R are in a tilted state when the lifting arms 5
Movable frame 2 when descending by L/5R
It is permissible for L and 2R to move backward.

However, when driving on the road with the loading platform 1 and the movable frames 2L and 2R stored, 3.
2. The grounding bodies 20L and 20R are urged in the storage direction via the urging spring 28.

In FIG. 18, a traction wheel 34 is attached to the rear end of the loading platform 1, and the traction wheel 34 is brought down to the ground, and the front ends of the movable frame bases 6L and 6R are connected to the lifting arms 5L and 6R. If it is floated by 5R, it can be moved like a towed trailer in this state.

(F) Function of the Invention The structure of the present invention is as described above. Next, the function based on the structure will be explained with reference to FIGS. 3 to 8.

First, from the on-road driving condition shown in Figure 1,
As shown in the figure, the operator manually pulls the integrated movable frames 2L, 2R and movable frame bases 6L, 6R to protrude rearward.

At this time, the movable frames 2L and 2R are movable frame side wheels 22a and 22a that protrude from the loading platform frames 4L and 4R.
22b and 22c are fitted, and the sliding is done easily. The movable frames 2L and 2R come off from the movable frame side rollers 22a at the front end that protrude from the cargo platform frames 4L and 4R, but the two movable frame side rollers 22b and 22c at the rear are removed from the movable frame 2L and the rear movable frame side rollers 22b and 22c, respectively.
Since the movable frames 2L and 2R and the movable frame bases 6L and 6R are fitted into the front part of the frame 2R, as shown in FIG. 3, they do not hang downward.

Also, the engaging pins 8 at the tips of the movable frame bases 6L and 6R
L and 8R are the engagement guide recess bodies 2 of the engagement recess bodies 7L and 7R.
5.

In the fitted state, the engagement pins 8L and 8R are located on the same axis as the dump rotation shafts 17L and 17R.

Figure 4 shows the state in which the movable frames 2L and 2R have not yet been pulled out to the rear, and the engagement bins 8L and 8
R has not moved to the same axis as the dump rotation shafts 17L-17R.

Next, when the engagement bins 8L and 8R are fitted into the engagement guide recess body 25, the dump cylinder 29 is extended and the dump frames 3L and 3R and the dump frame bases 16L and 16R are inserted.
Raise the front end of the
It rotates 6L and 16R.

Loading frame 4L/4R is dump frame 3L/3R
Dump frame side transfer 21a, 21b, 21 fitted to
Since it is supported by C, it rotates in the same way as the dump frames 3L and 3R, and the loading platform frames 4L and 4R
Movable frames 2L and 2R supported by movable frame side wheels 22b and 22c and movable frame bases 6L and
6R also rotates at the same angle.

At this time, the parts of the engagement pins 8L and 8R that protrude from the movable frame bases 6L and 6R are fitted into the engagement guide recess body 25 fixed to the horizontal rod 13, so they become an obstacle to the rotation of the dump truck. That's right, dump rotation shaft 17L/17
By making the positions of R and the engagement bins 8L and 8R on the same axis, the engagement bins 8L and 8R are aligned inside the engagement recess bodies 7L and 7R.
By rotating 8R, it is possible to allow the dump truck to rotate.

Movable frame base 6 due to extension of the dump cylinder 29
With the rotation of L and 6R, the grounding bodies 20T and 20R touch the ground.

7 8 Next, as shown in FIG. 6, the loading platform 1 is lowered on an incline.

Since the dump frame side rolling wheels 21a, 21b, and 21C of the loading platform frames 4L and 4R that support the loading platform 1 are loosely fitted inside the dump frames 3L and 3R, the dump frame side rolling wheels 21 are loosely fitted inside the dump frames 3L and 3R. While rotating, the platform 1 is lowered by rotating the platform lifting device WC in a direction that loosens the winch wire 24.

And the dump frames 3L and 3R are the dump rotation shaft 17L.
・Although it disappears at the 17R part, the movable frame side wheel 22
Since the sides a, 22b, and 22C are fitted into the rails of the movable frames 2L and 2R, next time the loading platform 1 will be lowered to the lowest position in Fig. 6 while being supported by the movable frame side rollers 22. be.

When the loading platform 1 and the loading platform frames 4L and 4R are lowered to the lowest position, the dump frame side wheels 21a, 21b, and 21c will come off the dump frames 3L and 3R, so the loading platform frames 4L and 4R and the dump frame frames 3L and 3R will fall off. This causes the upper end of the engagement to come off.

Therefore, loading platform frames 4L and 4R are also movable frames 2L and 2R.
The front ends of the movable frame bases 6L and 6R are also detached from the dump frames 3L and 3R, so they should fall, but the engagement pins 8L and 8R at the tips of the movable frame bases 6L and 6R
are engaged with the engagement recess bodies 7L and 7R, and the front ends of the movable frame bases 6L and 6R are supported by the horizontal rod 13 and the lifting arms 5L and 5R, so that the state shown in FIG. 6 is achieved. The goal is to maintain the

Then, from the state shown in FIG. 6, while contracting the lifting cylinder 10 and lowering the lifting arms 5L and 5F2 downward,
When the platform lifting device C is further loosened, the winch wire 24
is wound around the rear pulley 12, the front ends of the movable frame bases 6L and 6R gradually descend, and the rear ends of the movable frame bases 6L and 6R move inside the long holes 2Oa of the grounding bodies 20L and 2OR. The movable frame bases 6L and 6R slide rearward and are finally placed on the ground.

0 In this state, as shown in FIG. 8, the rear plate 23 is lowered and used as a footboard to mount a tractor or tiller, or to place cargo.

Also, as mentioned above, by removing the engagement pins 8L and 8R,
Since the lifting arms 5L and SR and the movable frame bases 6L and 6R can be separated, by also removing the wire fixing body 35 at the end of the winch wire 24, the movable frame bases 6L and 6R and the movable frame 2L can be separated.・2R and loading platform 1
It is also possible to leave it in that position and move only the running part separately.

Conversely, when the loading platform 1 is placed in the storage state, this action can be reversed.

That is, when the tips of the movable frame bases 6L and 6R are raised by the lift cylinder 10 and the lift arms 5L and 5R, the rear ends of the movable frame bases 6L and 6R slide forward in the long holes 20a, and the engagement pins 8L・8R is the dump rotation axis 17L/17
It is raised to a position that coincides with R.

When the elevating cylinder 10 is extended, the winch wire 24 is pulled in by the cargo platform pulling device C in accordance with the speed.

And the engagement pins 8L and 8R are the dump rotation shafts 17L and 17.
From the point when the load becomes the same as R, forced lifting by the loading platform lifting device C starts.

That is, the state of FIG. 6 is reversed by rising.

Then, when the loading platform 1 is pulled up to the top in the state shown in FIG. 5, the dump cylinder 29 is contracted to bring it into the state shown in FIG. 3.

Then, the drive of the loading platform lifting device C is cut off, the movable frames 2L and 2R are pushed in, and the engagement pin 8 is inserted into the locking body 39 at the front end.
L and 8R are inserted and fixed so that the movable frames 2L and 2R do not move rearward.

(G) Effects of the Invention Since the present invention is configured as described above, it has the following effects.

As claimed in claim 11, the transport vehicle is composed of a traveling vehicle body A, a dump frame, a loading platform 1, a movable frame, and a loading platform lifting device, so that the loading platform 1 is configured with inclined dump frames 3L and 3R. After descending along the movable frames 2L and 2R until the rear end touches the ground, the platform lifting device can lower the front end until it also rests on the ground.

As claimed in claim (2), since the loading platform, the movable frame, and the loading platform elevating device can be connected to the traveling vehicle body and the dump frame, a commercially available dump vehicle can be used as the main traveling parts, so that the entire structure can be improved. Therefore, it is possible to reduce the cost.

According to claim (3), by providing the lifting cylinder on the vehicle body side and arranging the pivot axis of the lifting arm in front of the rear wheels, the loading platform 1, the movable frames 2L and 2R, and the movable frame base 6L and 6R and the cargo platform frames 4L and 4R are all applied to the lifting arms 5L and 5R, the weight of the lifting arms 5L and 5R is applied to the pivot shaft 14, but the pivot shaft 14 is attached to the front wheel 18. - Since it is located between the rear wheels 18 and 19, there is no fear that the front end of the running section will lift up due to the weight of the loading platform 1.

According to claim (4), the loading platform is supported on the main frame via the dump frame in the stored state, and is configured to slide between the dump frame and the movable frame when loading and unloading the loading platform. When traveling on the road, the main frame 33 supports the loading platform 1, so vibration caused by traveling on rough terrain causes the dump frames 3L and 3 to vibrate.
This prevents R and the movable frames 2L and 2R from deforming.

Also, when loading cargo, only when the traveling vehicle is stopped, the dump frames 3L and 3R and the loading platform frame 4L
- Since the loading platform 1 slides while being supported by 4R, there is no vibration of the aircraft in this case, so there is no problem of overcurrent being applied to the frame and causing the frame to bend.

According to claim (5), the movable frame is slidable independently from the dump frame, and in the stored state is supported by the dump frame via the platform frame, the movable frame side wheels, and the dump frame side wheels. 3 4. In the pulled out state, the front part is supported by the lifting arm, so the movable frame 2L/2 in the pulled out state
R is the movable frame side wheel 2 of the loading platform frame 4L/4R.
Since the movable frames 2L and 2 are supported by
R can be maintained in an extended state of the loading platform frame 4L4R.

As claimed in claim (6), the front part of the movable frame is supported by the lifting arm and can be raised and lowered while the rear part is in contact with the ground, so that the loading platform 1 can be completely placed on the ground.
Tractors and moving vehicles are completely loaded.

As in claim (7), by having a grounding device at the rear of the movable frame, when the front end is lowered by the lifting arm 5L/5R with the movable frame 2L/2R grounded, the movable frame 2L/2R The rear end moves backward, and this movement is controlled by the grounding bodies 20L and 20R.
It can be absorbed by.

As in claim (8), by using the traction wheels 34 as the grounding device, the rear ends of the movable frames 2L and 2R are supported by the traction wheels 34, and the front ends of the movable frames 2L and 2R are supported by the lifting arms 5L and 2R. Since the 5R allows the vehicle to be driven as a trailer in a slightly floating state, it can be transported in this state when only moving short distances.

According to claim (9), in the configuration in which the engaging pins 8L and 8R provided at the front end of the movable frame are engaged with the lifting arm, the engaging pin 8 is made detachable, so that it can be placed on the ground. Since the loading platform 1 and the running section can be completely separated, by preparing the movable frames 2L and 2R and the loading platform 1 separately, they can be separated only while loading cargo.
It can be transported by attaching other loading platform parts.

[Brief explanation of drawings]

Fig. 1 is an overall side view of the transport vehicle of the present invention, Fig. 2 is an overall plan view, Fig. 3 is a side view with movable frames 2L and 2R pulled out rearward, and Fig. 4 is a plan view. , Fig. 5 is a side view of the dump frames 3L and 3R in a tilted state, and Fig. 6 is a side view of the dump frame 3L and 3R tilted.
FIG. 7 is a side view of the movable frames 2L and 2R, the cargo platform frames 4L and <R, and the cargo platform 1 placed on the ground by the platform lifting device. Fig. 8 is a side view of the loading platform 1 with the rear plate 23 folded backwards to form a footboard, and Fig. 9 is a side view of the cargo platform 1 with the rear plate 23 folded back and used as a footboard.
2R and dump frame 3L・3R and cargo frame 4L・
4R, FIG. 10 is an enlarged rear sectional view of the dump frame side rolling wheels 21 and movable frame side rolling wheels 22, FIG. 11 is a plan view, and FIG. 12 is a diagram of the loading platform lifting device c. 13 is a plan view of the dump frame side rolling wheel 21 and the movable frame side rolling wheel 22, FIG. 14 is a plan sectional view of the engagement bin 8 in a state where it can be freely engaged and detached, and FIG. 15 is a side view of the portion.
The figure is also a side view, and Figure 16 is a side view of the grounding device.
7 is a plan sectional view, and FIG. 18 is a side view of an embodiment in which traction wheels 34 are provided at the rear of the loading platform 1. A... Traveling vehicle body 7 B... Bonnet C... Loading platform lifting device 1... Loading platform 2 L/2R... Movable frame 3L/3R... Dump frame 1. 4L, 4R...Load frame 5L, 5R...Lifting arm 6L, 6R...Movable frame base 7L, 7R...Engagement recess body 8L, 8R...Engagement pin 9a, 9b, 9c... Roller shaft 14... Pivot shaft 21... Dump frame (K'J Roller M22...
・Movable frame side transfer

Claims (1)

[Scope of Claims] (1) A transport vehicle comprising a traveling vehicle body, a dump frame, a loading platform, a movable frame, and a loading platform lifting device. (2) A transport vehicle characterized in that a loading platform, a movable frame, and a loading platform lifting device can be added to the traveling vehicle body and dump frame. (3) A transport vehicle, characterized in that an elevating cylinder is provided on the vehicle body side, and the pivot axis of the elevating arm is located in front of the rear wheels. (4) The cargo platform is supported on the main frame via the dump frame in the stored state, and is configured to slide between the dump frame and the movable frame when loading and unloading the cargo platform. car. (5) The movable frame can slide independently from the dump frame, and in the retracted state is supported by the dump frame via the cargo frame, movable frame side wheels, and dump frame side wheels, and in the pulled out condition , a transport vehicle characterized by having a front portion supported by an elevating arm. (6) A transport vehicle characterized in that the front part of the movable frame is supported by an elevating arm and can be raised and lowered while the rear part is in contact with the ground. (7) A transport vehicle characterized by having a grounding device at the rear of the movable frame. (8) A transport vehicle characterized in that the grounding device is a wheel. (9) A transport vehicle characterized in that the engaging pin provided at the front end of the movable frame is engaged with the lifting arm, and the engaging pin is detachable.