JP2812714B2 - Transport vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a configuration in which a carrier provided with a carrier can be lowered from a traveling vehicle body and placed on the ground.

(B) Conventional technology Conventionally, when a traveling work vehicle such as a tiller or a tractor is mounted on a carrier of a transport vehicle, the carrier itself has to be moved rearward so that it is not necessary to separately provide a step board and the vehicle can be safely mounted. Techniques for moving and tilting the rear end to contact the ground are known.

For example, as disclosed in Japanese Utility Model Laid-Open No. 56-102247.

(C) Problems to be Solved by the Invention However, even in the conventional technique, the carrier can be inclined with the rear end attached to the ground like a footboard, but the operator still needs to mount the vehicle to be mounted. It must be driven and transported onto a slippery bed, which involves some danger and requires skill.

According to the present invention, the loading platform can be tilted, and can be further advanced and lowered to a level level with the ground.

With this, vehicles and other luggage to be mounted can be easily loaded on the bed placed horizontally on the ground, and then by mechanically operating the bed lifting device,
The configuration is such that the operator can easily store the carrier to the original position without requiring skill.

(D) Means for Solving the Problems The object of the present invention is as described above, and a configuration for achieving the object will be described below.

In claim (1), a main frame 33 fixed to the traveling vehicle body A and a front end pivotally supported on the main frame 33 so as to be able to move up and down around the dump rotation shafts 17L and 17R at the rear end. Dump frames 3L, 3R and dump frames 3L, 3R
The movable frames 2L, 2R which can be relatively moved back and forth with respect to the dump frames 3L, 3R and the movable frames 2L, 2R are both provided with slidable carrier frames 4L, 4R, and the carrier frames are provided. The carrier 1 is fixed to 4L, 4R, and the carrier 1 is stored in the main frame 33 via the dump frames 3L, 3R in the stored state.
It is supported on the upper side, and when loading / unloading the loading platform 1, the dump frames 3L, 3R and the movable frames 2L, 2R extended to the rear.
The width of the loading frame 4L, 4R is smaller than the width of the dump frame 3L, 3R, and the width of the loading frame 4
The width of the movable frames 2L, 2R is smaller than the width of L, 4R.

According to claim (2), in the transport vehicle according to claim (1), the movable frames 2L, 2R are relatively moved with respect to the dump frames 3L, 3R and pulled out rearward.
From the state where the front end of the movable frame 2L, 2R is continuous with the rear end of the L, 3R, the front end of the movable frame 2L, 2R is moved to the dump frame 3L,
Remove from the rear end of 3R and make it possible to move up and down, movable frame 2L, 2R
Lifting arms 5L, 5R pivotally supporting the front end of the vehicle, the lifting arms 5L, 5R are configured to be raised and lowered by a lifting cylinder 10, and the lifting arms 5L, 5R and the lifting cylinder 10 are supported on the traveling vehicle body A. .

According to claim (3), in the carrier according to claim (2), the engaging pins 8L, 8R provided at the front ends of the movable frames 2L, 2R are provided.
8R, engaging concave bodies 7L, 7R provided at the rear ends of the lifting arms 5L, 5R.
In the case where the engaging pins 8L and 8R are lifted by the elevating cylinder 10, the engaging pins 8L and 8R can be released from the engaging recessed bodies 7L and 7R.

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

FIG. 1 is an overall side view of the truck of the present invention, FIG. 2 is an overall plan view thereof, FIG. 3 is a side view of a state where the movable frames 2L and 2R are pulled out rearward, FIG. FIG. 5 is a side view showing a state where the dump frames 3L and 3R are tilted, and FIG.
The illustration shows the loading frame C loosened and the loading platform 1 dump frame
FIG. 7 is a side view of a state in which the movable frame 2L, 2R, the carrier frames 4L, 4R, and the carrier 1 are placed on the ground by the carrier elevating device. FIG. 8 is a side view of a state in which the rear plate 23 is tilted backward on the carrier 1 to form a step board, and FIG. 9 is a portion of the movable frames 2L, 2R, the dump frames 3L, 3R, and the carrier frames 4L, 4R. FIG. 10 is an enlarged rear cross-sectional view of a portion of a dump frame-side rolling wheel 21 and a movable frame-side rolling wheel 22, FIG. 11 is a plan view of the same, and FIG. Fig. 13
FIG. 14 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 state in which the engaging pin 8 is engaged and disengaged, and FIG. FIG. 17 is a side view of the grounding device, FIG. 17 is a plan view of the same, and FIG. 18 is a side view of an embodiment in which a towing wheel 34 is provided at the rear of the carrier 1.

 1 and 2, the overall configuration will be described.

The skeleton vehicle, which supports the traveling vehicle body A by the front wheels 58, 59 and the rear wheels 19, 19 and drives the wheels by the engine in the hood B, is manufactured by an automobile manufacturer and provided to a specially equipped vehicle manufacturer equipped with special equipment. It is delivered.

Further, a vertical support rod 36 protrudes from the traveling body A of the skeleton car, supports a main frame 33 thereon, and has a dump frame 3L, 3R attached to the main frame 33 via a dump rotary shaft 17L, 17R. A special vehicle having a dump specification with a dump cylinder 29 interposed therebetween is also commercially available.

According to the present invention, the special vehicle of the dump specification is provided with a carrier 1, movable frames 2 L, 2 R, and a carrier lifting device to constitute a special transport capable of lowering the carrier 1 horizontally.

The traveling body A turns upward at the rear wheel 19 and
The traveling body A is provided with an elevating cylinder 10, an elevating arm pivot body 18L, 18R, and a pivot shaft 14, and the pivot shaft 14 pivotally supports a middle part of the elevating arm 5L, 5R. Things.

Further, the pivot shaft 14 is located forward of the rear wheels 19, 19, and the front wheels 58,
It is located between 58 and.

The loading frames 4L and 4R are fixed to the lower portion of the loading platform 1. The loading frames 4L and 4R are mounted on the dump frames 3L and 3R in the storage state as shown in FIG.
Supported through one.

The dump frames 3L and 3R are dump frame bases 16L and 16R.
The dump frame bases 16L, 16R and the dump rotation shafts 17L, 17R support the rotation shaft frames 15L, 15R, and the rotation shaft frames 15L, 15R are attached to the main frame 33.
It is fixed on the top.

Engagement pins 8L, 8R protrude from the front ends of the movable frames 2L, 2R, and when the movable frames 2L, 2R are pulled out rearward, the engagement pins 8L, 8R are fitted into the engagement recessed bodies 7L, 7R of the carrier lifting device. It is configured to be stopped.

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

In addition, as shown in FIG.
A support rod is erected between the front ends of the 3L and 3R, and the carrier pulling device C is disposed at this portion. A front pulley pulley 11 for winding the winch wire 24 of the carrier pulling device C is fixedly provided between the carrier frames 4L and 4R.

The rear end of the winch wire 24 is fixed to a lower portion of the carrier 1 via a wire fixing body 35.

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

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 a erection rod erected between the dump frames 3L and 3R.

Next, a specific configuration will be described with reference to FIGS. 9 to 11. FIG.

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

The dump frame bases 16L and 16R are formed of square pipes, and are formed as structural members that support the weight of the loading platform 1. The dump frame bases 16L and 16R are turned inwardly on the dump frame bases 16L and 16R. The dump frames 3L and 3R, which form an opening in the shape of a letter and form a fitting rail of the dump frame-side rolling wheel 21, are fixed.

The dump frame bases 16L and 16R are attached to the lower side because the "U" -shaped dump frames 3L and 3R alone cannot sufficiently support the weight of the loading platform 1 and the load.

The dump frame 3L, 3R and the dump frame base 16L, 16R
, The front end is vertically rotated about the dump rotation shafts 17L and 17R, but only the rotation is performed, and the front and rear sliding is not performed.

As described above, the carrier lifting device C is fixed between the dump frames 3L, 3R and the dump frame bases 16L, 16R.

Also, as shown in FIGS. 10 and 13, the dump frame-side rolling wheels 21a, 21a are provided in the rail frames of the dump frames 3L, 3R.
The b and 21c are fitted and rollable. The wheel 21 on the dump frame side is loosely fitted to the wheel shafts 9a, 9b, 9c, and the wheel shafts 9a, 9b, 9c are fixed to the carrier frames 4L, 4R.

Further, a movable frame-side rolling wheel 22 is fixedly provided at the other end of the wheel shafts 9a, 9b, 9c, and the movable frame-side rolling wheel 22 is also formed of a `` U '' shaped material, It is loosely fitted into the inside of the movable frames 2L, 2R arranged facing outward.

The wheel shaft 9 has a front portion 9a, 9b, 9c disposed on the left and right. The wheel shafts 9a, 9b, 9c are mounted on the dump frame side wheels 21a, 21a.
b, 21c and the movable frame-side rolling wheels 22a, 22b, 22c are loosely fitted.

The wheel shaft 9c is, as shown in FIG. 12, a carrier frame 4L, 4R.
As shown in FIG. 11, the wheel shafts 9b and 9c are disposed close to the rear ends of the carrier frames 4L and 4R in the front-rear direction, and the two wheel shafts 9b and 9c are fixed to each other. 9b, 9c, the dump frame side rolling wheels 21b, 21c, and the movable frame side rolling wheels 22b, 22c move the movable frame 2L, 2R pulled out rearward into a horizontal or inclined state on the extension of the carrier frame 4L, 4R. It is configured to maintain it.

In addition, since the movable frames 2L and 2R are also made of a `` U ''-shaped mold, the strength for supporting the loading platform and the load is not sufficiently maintained, and therefore, under the movable frames 2L and 2R,
The movable frame bases 6L and 6R are integrally fixed and reinforced.

Rotating pivots 37L, 37R of the grounding bodies 20L, 20R protrude inward from rear ends of the movable frame bases 6L, 6R.

A rear pulley pulley 12 is fixed to a rear end position between the dump frame bases 16L and 16R. The rear pulley pulley 12 and the front pulley pulley 11 are mounted on the dump frame bases 16L, 16L.
Because it is fixed to the R, it rotates up and down but does not move back and forth.

 Next, the carrier lifting device will be described.

As described above, the lifting cylinders 10 rotate the lifting arms 5L, 5R pivotally supported by the pivot shaft 14, and the lifting arms 5L, 5R
Is fixed to the horizontal rod 13. The horizontal rod
Engagement recessed bodies 7L and 7R are fixedly provided at two places on the left and right sides of 13, respectively.

In FIGS. 14 and 15, an engaging portion between the engaging recessed bodies 7L, 7R and the engaging pins 8L, 8R will be described.

An engagement guide recess 25 is fixed to the engagement recesses 7L, 7R fixed to the horizontal rod 13, and is disposed in the engagement guide recess 25 at the tips of the movable frame bases 6L, 6R. 8L, 8R
However, the movable frames 2L and 2R and the movable frame bases 6L and 6R are drawn out so that they can be fitted when moved rearward.

In order to prevent the engaging pins 8L and 8R from being pulled forward in the fitted state, the engaging hook 26 is urged by an urging spring 27 and protrudes.

Further, the engaging pins 8L, 8R are not fixed to the movable frame bases 6L, 6R, but are fixed to the movable frame bases 6L, 6R.
Can be engaged and disengaged from the loose fitting holes provided at the bottom, and when the carrier 1 is lowered onto the ground, the engaging pins 38 of the engaging pins 8L and 8R are pulled out, thereby removing the engaging pins 8L and 8R, and Frame 2
With the L, 2R, movable frame bases 6L, 6R, carrier frames 4L, 4R and carrier 1 on the ground, detach the front part from the lifting arms 5L, 5R and replace them with another placed carrier device. It is configured to be able to do.

Next, in FIGS. 15 and 16, the movable frame base 6
The configuration of the grounding bodies 20L and 20R supported by L and 6R will be described.

Each of the grounding bodies 20L and 20R has a sled plate 20b on the lower surface, and an elongate hole 20a is opened in an upright plate 20c supporting the sled plate 20b.

The slide bearing portion 30 is loosely fitted in the elongated hole 20a, and allows the movable frame 2L, 2R to move backward when the movable frame 2L, 2R is lowered by the lifting arm 5L, 5R in an inclined state. It is possible.

However, in a state where the loading platform 1 and the movable frames 2L and 2R are stored, the urging springs 3 are provided so that the grounding bodies 20L and 20R do not hang rearward or protrude when traveling on the road.
The grounding bodies 20L, 20R are urged in the storage direction via 2, 28.

In FIG. 18, a towing wheel 34 is attached to the rear end of the loading platform 1, the towing wheel 34 is grounded in a state of being lowered on the ground, and the front ends of the movable frame bases 6L and 6R are lifted by the lifting arms 5L and 5L. 5R
When lifted, the vehicle can move like a towed trailer.

(F) Effect of the Invention The configuration of the present invention is as described above. Next, the operation based on the configuration will be described with reference to FIGS.

First, from the state of traveling on the road shown in FIG. 1, as shown in FIGS. 3 and 4, the movable frames 2L, 2R and the movable frames 6L, 6L,
The operator pulls the integrated 6R by human power and projects it rearward.

At this time, the movable frames 2L and 2R are
The movable frame-side rolling wheels 22a, 22b, 22c protruding from the L, 4R are fitted, and the slide is performed lightly.

Then, the movable frames 2L and 2R are disengaged from the portion of the movable frame side rolling wheels 22a at the front end protruding from the carrier frames 4L and 4R, but two of the rear movable frame side rolling wheels 22b and 22c are Since the movable frames 2L, 2R and the movable frame bases 6L, 6R, which are protruded to the rear as shown in FIG. 3, do not drop downward because they are fitted into the front portions of the 2L, 2R.

Also, the engaging pins 8L, 8R at the tips of the movable frame bases 6L, 6R
Is fitted into the engagement guide recess 25 of the engagement recesses 7L and 7R.

In the fitted state, the positions of the engagement pins 8L, 8R are located on the same axis as the dump rotation shafts 17L, 18R.

FIG. 4 shows a state before the movable frames 2L and 2R are pulled out to the rear, and the engaging pins 8L and 8R have not yet moved to the same axis as the dump rotation shafts 17L and 17R. It is.

Next, when the engagement pins 8L and 8R are fitted into the engagement guide concave bodies 25, the dump cylinder 29 is extended, and the dump frame
Raise the front ends of 3L, 3R and dump frame bases 16L, 16R,
The dump frames 3L, 3R and the dump frame bases 16L, 16R are rotated around the dump rotation shafts 17L, 17R.

Since the loading frames 4L and 4R are supported by the dump frame-side rolling wheels 21a, 21b and 21c fitted to the dump frames 3L and 3R, they rotate similarly to the dump frames 3L and 3R, and Movable frame side wheel 22 of frames 4L and 4R
The movable frames 2L and 2R supported by the b and 22c and the movable frame bases 6L and 6R also rotate at the same angle.

At this time, the portions of the engagement pins 8L, 8R protruding from the movable frame bases 6L, 6R are fitted into the engagement guide concave members 25 fixed to the horizontal rods 13, so that they do not hinder the dump rotation. Although it is likely to be, the dump rotation shaft 17L, 17R and the engagement pin 8L,
By setting the position of 8R to be the same axis, the engagement concave body 7
The rotation of the engagement pins 8L and 8R inside the L and 7R allows the dump rotation to be allowed.

The movable frame base by extending the dump cylinder 29
With the rotation of 6L and 6R, the grounding bodies 20L and 20R touch the ground.

Next, as shown in FIG. 6, the loading platform 1 is tilted and lowered.

Since the dump frame-side rolling wheels 21a, 21b, 21c of the loading frame 4L, 4R supporting the loading platform 1 are loosely fitted inside the dump frames 3L, 3R, the dump frame-side rolling wheels 21 along this rail. While rotating the carrier 1, the carrier 1 descends by rotating the carrier lifting device C to the side where the winch wire 24 is loosened.

And the dump frames 3L, 3R are the dump rotary wheels 17L, 17R.
The movable frame side rolling wheels 22a, 22b, 22c
Side is fitted in the rails of the movable frames 2L and 2R, and then the carrier 1 descends to the lowest position in FIG. 6 while being supported by the movable frame-side rolling wheels 22.

When the carrier 1 and the carrier frames 4L, 4R are lowered to the lowest position, the dump frame-side rolling wheels 21a, 21b, 21c come off the dump frames 3L, 3R, so that the carrier frames 4L, 4R and the dump frames 3L, 3R The upper end of the engagement comes off.

Therefore, both the loading frame 4L and 4R, the movable frame 2L and 2R, and the movable frame base 6L and 6R should fall because the front ends of the movable frame bases 6L and 6R fall off the dump frames 3L and 3R.
The front ends of the movable frame bases 6L and 6R are supported by the horizontal rod 13 and the elevating arms 5L and 5R because the engaging pins 8L and 8R at the distal end of the R are engaged with the engaging concave bodies 7L and 7R. Has been
The state shown in FIG. 6 is maintained.

When the lifting cylinder C is further loosened while the lifting cylinder 5 is lowered and the lifting arms 5L, 5R are lowered from the state of FIG. 6, the winch wire 24 is wound around the rear pulley pulley 12. In the state, the movable frame base 6
The front end of L, 6R gradually descends, and the rear end of the movable frame base 6L, 6R slides backward in the long hole 20a of the grounding body 20L, 20R,
Eventually, the movable frame bases 6L and 6R are placed on the ground.

In this state, as shown in FIG. 8, the rear plate 23 is lowered, and a tractor or a cultivator is mounted as a walking plate, or a load is placed.

Also, by pulling out the engagement pins 8L and 8R as described above,
Since the lifting arms 5L, 5R and the movable frame bases 6L, 6R can be separated from each other, the wire fixed body 35 at the end of the winch wire 24 is also removed, so that the movable frame bases 6L, 6R
The movable frame 2L, 2R and the loading platform 1 can be left alone at this position and moved separately only for the traveling section.

Conversely, when the carrier 1 is in the housed state, the storage can be performed by reversing this operation.

That is, when the leading ends of the movable frame bases 6L, 6R are raised by the lifting cylinder 10 and the lifting arms 5L, 5R, the rear ends of the movable frame bases 6L, 6R slide forward in the elongated holes 20a, and the engaging pins
8L and 8R are raised to a position where they coincide with the dump rotation shafts 17L and 17R.

When the elevating cylinder 10 is extended, the winch wire 24 is manually manipulated by the carrier pulling device C according to the speed.

Then, when the engagement pins 8L, 8R become the same as the dump rotary shafts 17L, 17R, forced hand pulling by the bed lifting device C is started.

That is, the downward movement in the state shown in FIG.

When the carrier 1 is pulled up to the uppermost position in the state shown in FIG. 5, the dump cylinder 29 is contracted, and the state shown in FIG. 3 is obtained.

Then, the drive of the platform lifting device C is turned off, and the movable frames 2L and 2R are pushed in, and the engaging pins 8L and 8R
Is fixed so that the movable frames 2L and 2R do not move backward.

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

In claim (1), a main frame 33 fixed to the traveling vehicle body A and a front end pivotally supported on the main frame 33 so as to be able to move up and down around the dump rotation shafts 17L and 17R at the rear end. Dump frames 3L, 3R and dump frames 3L, 3R
The movable frames 2L, 2R which can be relatively moved back and forth with respect to the dump frames 3L, 3R and the movable frames 2L, 2R are both provided with slidable carrier frames 4L, 4R, and the carrier frames are provided. The carrier 1 is fixed to 4L, 4R, and the carrier 1 is stored in the main frame 33 via the dump frames 3L, 3R in the stored state.
It is supported on the upper side, and when loading / unloading the loading platform 1, the dump frames 3L, 3R and the movable frames 2L, 2R extended to the rear.
The width of the loading frame 4L, 4R is smaller than the width of the dump frame 3L, 3R, and the width of the loading frame 4
Since the width of the movable frames 2L and 2R is smaller than the width of L and 4R, the following effects are obtained.

First, the width of the dump frames 3L, 3R is increased, and the carrier frames 4L, 4R are arranged therebetween, and the movable frames 2L, 2R are arranged inside the dump frames 3L, 3R.
Sliding the carrier frames 4L, 4R, and further sliding the movable frames 2L, 2R with respect to the carrier frames 4L, 4R, as a whole, on the dump frames 3L, 3R and the movable frames 2L, 2R, the carrier frame 4L. , 4R can slide from the front end of the main frame 33 to the ground.

Secondly, since the three sets of dump frames 3L and 3R, the carrier frames 4L and 4R, and the movable frames 2L and 2R are present, the three sets of frames are sequentially narrowed.
With the carrier 1 stored on the traveling body A, three sets can be stored compactly.

Third, the loading bed 1 is in the storage state and the dump frames 3L, 3R
Is supported on the main frame 33, and when loading / unloading the loading platform 1, since it is configured to slide between the dump frames 3L, 3R and the movable frames 2L, 2R, when traveling on the road, Since the carrier 1 is supported by the main frame 33, the dump frames 3L and 3R and the movable frames 2L and 2R are not deformed due to vibration due to uneven terrain.

Fourth, the dump frames 3L, 3R and the carrier frame 4L,
Since the carrier 1 slides while being supported by the 4R, in this case, there is no vibration of the body, so that an excessive load is applied to the frame portion and the frame does not bend.

Fifth, the movable frames 2L and 2R can slide independently of the dump frames 3L and 3R.
4L, 4R, the movable frame-side rolling wheel 22, and the dump frame-side rolling wheel 21 are supported by the dump frame 33, and in the pulled-out state, the front portion is pulled out by being supported by the lifting arms 5L, 5R. The movable frames 2L, 2R are supported by the movable frame side rolling wheels 22 of the carrier frames 4L, 4R, so that the movable frames 2L, 2R are supported by the carrier frames 4L,
It can be maintained in the extended state of 4R.

In claim (2), the movable frames 2L, 2R are relatively moved with respect to the dump frames 3L, 3R and pulled out rearward,
From the state where the front ends of the movable frames 2L, 2R are continuous with the rear ends of the dump frames 3L, 3R, the front ends of the movable frames 2L, 2R are
Remove from the rear end of the dump frame 3L, 3R to be able to go up and down,
Elevating arms 5L, 5R pivotally supporting the front ends of the movable frames 2L, 2R are provided, and the elevating arms 5L, 5R are configured to be moved up and down by an elevating cylinder 10, and the elevating arms 5L, 5R and the elevating cylinder 10 are attached to the traveling vehicle A. Because of the support, the carrier 1 can be completely placed on the ground, so that the tractor, the traveling vehicle, and the like are completely mounted.

In claim (3), the engaging pins 8L, 8R provided at the front ends of the movable frames 2L, 2R are engaged with the engaging recessed bodies 7L, 7R provided at the rear ends of the elevating arms 5L, 5R. When ascending and descending by the cylinder 10, the engaging pins 8L, 8R are engaged with the engaging concave bodies 7L, 7R.
, The engaging pins 8L, 8R provided at the front ends of the movable frames 2L, 2R are locked to the lifting arms 5L, 5R. Since the luggage carrier 1 placed on the car and the traveling part can be completely separated, the movable frames 2L, 2R and the luggage carrier 1 are separately prepared, so that only the luggage can be separated while the luggage is loaded. It can be transported with the carrier part attached.

[Brief description of the drawings]

FIG. 1 is an overall side view of the truck of the present invention, FIG. 2 is an overall plan view thereof, FIG. 3 is a side view of a state where the movable frames 2L and 2R are pulled out rearward, FIG. FIG. 5 is a side view showing a state where the dump frames 3L and 3R are tilted, and FIG.
FIG. 7 is a side view showing a state where the movable frames 2L and 2R, the loading frames 4L and 4R, and the loading platform 1 are placed on the ground by the loading platform elevating device. FIG. 8 is a side view of the state in which the rear plate 23 is tilted backward on the carrier 1 to form a step board, and FIG. 9 is a portion of the movable frames 2L, 2R, the dump frames 3L, 3R, and the carrier frames 4L, 4R. Rear cross-sectional view, FIG. 10 is an enlarged rear cross-sectional view of a portion of a dump frame-side rolling wheel 21 and a movable frame-side rolling wheel 22, FIG. 11 is a plan view of the same, and FIG. 13, FIG. 13 is a plan view of a dump frame-side rolling wheel 21 and a movable frame-side rolling wheel 22, FIG. 14 is a cross-sectional plan view showing a state in which an engaging pin 8 can be freely disengaged, and FIG. FIG. 16 is a side view of the grounding device, FIG. 17 is a sectional plan view of the same, and FIG. 18 is a side view of an embodiment in which a towing wheel 34 is provided at the rear of the carrier 1. That. A: Traveling vehicle body B: Bonnet C: Loading platform lifting device 1 ... Loading platform 2L, 2R ... Movable frame 3L, 3R ... Dump frame 4L, 4R ... Loading frame 5L, 5R ... Lifting arm 6L, 6R … Movable frame base 7L, 7R… Engaging recessed body 8L, 8R… Engaging pins 9a, 9b, 9c… Roller shaft 14… pivot shaft 21… dump frame side rolling wheel 22… movable Frame side wheel

Continued on the front page (72) Inventor Tomio Mino 1-32 Chayacho, Kita-ku, Osaka-shi, Osaka Inside Yan Diesel Co., Ltd. (72) Inventor Takuji Tanaka 1-32 Chaya-cho, Kita-ku, Osaka, Osaka Yanmar Diesel Co., Ltd. (56) References JP-A-59-165238 (JP, U) JP-A 62-85509 (JP, U) JP-A 64-51541 (JP, U) JP-B-45-17723 (JP, U.S.A.) , B1) (58) Field surveyed (Int.Cl. ⁶ , DB name) B60P 1/64

Claims (3)

(57) [Claims] A main frame fixed to a traveling vehicle body.
And the dump rotation shaft 17 at the rear end with respect to the main frame 33.
Dump frames 3L, 3R pivotally supported at the front end so as to be able to move up and down around L, 17R, and movable frames 2L, 2R movable relatively to the front and rear with respect to the dump frames 3L, 3R are provided. , 3R and movable frames 2L, 2R, slidable carrier frames 4L, 4R are provided, and the carrier frames 4L, 4R
The loading bed 1 is supported on the main frame 33 via the dump frames 3L and 3R in the storage state, and the dump frames 3L and 3R are loaded and unloaded when the loading bed 1 is unloaded.
And the movable frame 2L, 2R extending to the rear, and configured to slide, the width of the carrier frame 4L, 4R is smaller than the width of the dump frame 3L, 3R, and the width of the carrier frame 4L, 4R. A transport vehicle characterized in that the width of the movable frames 2L and 2R is also small. 2. The vehicle according to claim 1, wherein the movable frames 2L, 2R are moved relative to the dump frames 3L, 3R and pulled out rearward, and the movable frames are provided at the rear ends of the dump frames 3L, 3R. From the state where the front ends of the 2L and 2R are continuous, the front ends of the movable frames 2L and 2R are detached from the rear ends of the dump frames 3L and 3R so that the front ends of the movable frames 2L and 2R can be moved up and down. A transport vehicle provided with 5R, the lifting arms 5L, 5R are configured to be lifted and lowered by a lifting cylinder 10, and the lifting arms 5L, 5R and the lifting cylinder 10 are supported on a traveling vehicle body A. 3. The carrier according to claim 2, wherein the engaging pins 8L and 8R provided at the front ends of the movable frames 2L and 2R are replaced with engaging recesses 7L provided at the rear ends of the lifting arms 5L and 5R. , 7R, and when it is raised and lowered by the lifting cylinder 10, the engaging pins 8L, 8
A transport vehicle characterized in that R can be released from the engagement recessed bodies 7L, 7R.