JPH02208178A - Carriage vehicle - Google Patents

Abstract

PURPOSE:To enable placing and carriage of even long reinforcing bar aggregates and bent aggregates by a method wherein, in a carrying vehicle for building materials, a prime mover, a reduction gear, and a running device are all arranged below a load-carrying platform, and the load-carrying platform is formed in a shape having no protrusion part. CONSTITUTION:In a carriage vehicle, a prime mover E and reduction gears B on both sides are mounted on a truck frame 6, and a track C is driven by means of a drive sprocket 7 secured to an axle protruded from the reduction gear B. Vertical support levers are protruded from the truck frame 6, a base bed 3 is secured to the upper end of the vertical support levers, and a flat load-carrying platform F is mounted thereon. Since the load-carrying platform F occupies the whole surface of a machine body, even when quantities of long aggregates and bent aggregates 12-14 are placed thereon, a center of gravity position G is not moved, and the vehicle is run in a way that an operator M operates the reduction gear B through an operating part A. This constitution enables carriage of the long reinforcing bar aggregates and bent aggregates in a state to place the aggregates thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a transport vehicle used to transport construction materials of various shapes at construction sites and the like.

(b) Prior Art Conventionally, track-type transport vehicles have been used at construction and civil engineering sites to transport excavated earth and sand.

However, conventional track-type transport vehicles mainly used for civil engineering work have loading platform side plates upright on the left, right, front and rear to prevent soil from spilling out, and the driver's seat, control unit, prime mover, etc. protrude above the loading platform. Therefore, when trying to transport long reinforcing steel aggregates, etc. used at building construction sites, etc. using the conventional transport vehicle, the side plates of the loading platform and the prime mover got in the way, making it impossible to transport large quantities at once. be.

(c) Problems to be Solved by the Invention The present invention provides a transport vehicle capable of loading construction materials of various sizes and shapes, particularly long reinforcing steel aggregates, etc., at construction sites. .

In addition, in conventional transport vehicles, even if the center of gravity is at the center of the aircraft, there are control sections and prime mover mounting sections in the front and rear positions, so if a heavy object is placed on the loading platform, which is about half the size of the aircraft, the center of gravity will shift. There was a risk that the position would shift and the aircraft would overturn.

In the present invention, the entire body of the vehicle is used as a loading platform, and the center of gravity of the vehicle is located approximately at the center of the vehicle, so that even if a heavy object is placed on the platform, the center of gravity does not move.

In addition, even if the aircraft collides with the wall due to incorrect operation of the transport vehicle when transporting carpet, tiles, interior materials, or waste materials to a site where the wall has been completed, for example, we will prevent the wall from being damaged. The rubber belt comes into contact with the wall first (the crawler belt protrudes forward, backward, left and right than the cargo platform).

In addition, in order to eliminate the control section that was conventionally installed at the same height as the loading platform, the control section was configured as a remote control control device, making it possible to carry objects for long distances with only the loading platform on the top. .

Furthermore, since remote control is used, there is a possibility that operator M may make an operational error, so a safety device is provided at the control unit in case the aircraft goes out of control due to operational error.

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

It is a transport vehicle equipped with a loading platform F, a prime mover E, a transmission Wt, B, and a traveling device, in which the prime mover E, the transmission, and the traveling device are all arranged below the loading platform F, and the loading platform F has a shape without any protruding parts. This is what I did.

Moreover, the center of gravity WG is made to substantially coincide with the center position of the loading platform F.

Moreover, the loading platform F is configured to be openable and closable.

Further, the outer part of the crawler belt C is made to protrude from the loading platform F in the front, rear, right and left directions.

In addition, the control section A is provided separately from the fuselage.

Additionally, a safety device is constructed inside the control section A in case the aircraft goes out of control.

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

Figure 1 is a side view of a transport vehicle loaded with reinforcing steel aggregates, etc. Figure 2 is a side view of a transport vehicle loaded with long aggregates,
FIG. 3 is a side view of the device with the wall material mounted thereon, and FIG. 4 is a side view of the device with the metal fitting storage bag mounted thereon.

The prime mover E and left and right transmissions B are mounted on the trunk frame 6.
-B is placed, and an axle protrudes from the left and right speed change bags fiB -B, and a drive sprocket 7 is mounted on the tip of the axle.
・7 is fixed.

The driving sprockets 7 and track rollers and idle rollers supported by the trunk frame 6 support and drive a crawler track C that constitutes a traveling device.

The transmission B-B integrally constitutes an H3T transmission W4 and a reduction gear 5, and is provided with a control section A so that an operator M located at a distance from the H5T transmission W14 can operate it. There is. A gear shift lever 1 protrudes from the control section A.

Further, a vertical support rod is projected from the aforementioned truck frame 6, and a base base 3 is fixedly installed on the upper end of the vertical support rod, and a loading platform F is provided on the base base 3.

The center of gravity G of the transport vehicle of the present invention is as shown in the drawing (it is configured at the center position of the front, back, left and right sides of the machine body, and since the loading platform F closes the front of the aircraft body, the center of gravity G of the transportation vehicle of the present invention is Even when a large amount of material is placed on the
There is no movement.

In FIG. 1, the bent aggregates 12, 13, and 14 are shown at aX, and in FIG. 2, the long aggregate 1) is placed protruding from the loading platform F.

In Fig. 3, a plate-shaped wall material 16 is placed, and by eliminating the left and right side plates of the loading platform F, any shape of wall material 16 can be placed without being subject to regulations. be.

Since the vehicle does not travel on abandoned public roads, but only at construction sites, there is no need to secure the luggage with wires or ropes, and the vehicle simply moves slowly after being placed on the vehicle.

FIG. 4 shows a state where metal fittings, which are often transported in a bag, are placed.

In the present invention, in order to avoid creating other protruding objects on the loading platform F, and when a long object is placed, the operator M operates without touching the long aggregate. In order to make this possible, the control unit A is used as a remote control device.

Figure 5 is a side view of the loading platform F opened to the front or rear, Figure 6 is a front view of the loading platform F opened to the right or left side, and Figure 7 shows the loading platform F and the base 3. A plan view, FIG. 8 is a plan view showing parts of the prime mover E and transmission B-B,
Fig. 14 is an exploded perspective view of the opening pivot of the loading platform F, Fig. 15 is a front sectional view, Fig. 16 is a side sectional view, Fig. 17 is a side view showing the pivot of the side plate 2, and Fig. 18. is also a cross-sectional view, and FIG. 19 is a cross-sectional view when rotating the side plate 2.
FIG. 20 is a side view showing the rotation range of the side plate 2.

In the transport vehicle of the present invention, as shown in FIG.
is retracted, and the rubber track C protrudes from the loading platform F by tl and t2, so even if the aircraft collides with the completed wall, the rubber track C will still be able to It is constructed in such a way that it does not get damaged as much.

In addition, the prime mover E and the transmission B are located below the loading platform F and the base platform 3.
- B etc. are arranged, so the prime mover E and transmission WB -
When inspecting or repairing part B, it is necessary to remove the loading platform F.

When opening the loading platform F in this way to enable inspection below, it is necessary to open it only in one direction because the construction site is narrow.
The work is often difficult to do.

Therefore, in the present invention, the loading platform F can be opened in any direction, front, back, left, or right.

That is, in FIG. 5, the loading platform F is moved forward to the position F",
The figure shows the state in which the F" position is opened to the rear, and the state in which it has been rotated to the F" position on the right side and the F" position on the left side is shown in FIG. All of them are made by rotating one loading platform F placed on a base platform 3 in four directions.

As a result, when the loading platform F is opened, the framed base 3 is exposed underneath, so that inspection and repair can be carried out by inserting hands between the base 3.

In addition, side plates 2 can be erected on the four sides of the front, rear, left and right sides of the loading platform F, and the side plates 2 can be folded into the interior of the loading platform F when long aggregates, etc. are to be placed thereon. .

Referring to FIGS. 14 to 16, a configuration in which the loading platform F can be opened in four directions will be described.

Pivot brackets 3b protrude from the frame-structured base 3 at four locations at the front, rear, left, and right ends, and a left-right rotation pivot 3a is provided at the upper end thereof. The pivot point 3a
A pivot body 9 is inserted in the.

The pivot body 9 is provided with a left-right pivot shaft 9a and a front-rear pivot pivot 9b.

The left-right pivot shaft 9a is loosely fitted into the left-right pivot portion 3a, and the longitudinal pivot shaft 8 is inserted into the front-rear pivot portion 9b.

The longitudinal rotation pivot shaft 8 is a cargo platform pivot support cylinder 3 fixed to the cargo platform F.
3 and is inserted into the front-rear rotation pivot 9b, and on the outer periphery of the front-rear rotation pivot 8, the handle 8a is inserted into the
Spiral groove 8b configured so that it does not come out unless it is rotated 80 degrees
is engraved.

The spiral groove 8b is fitted into the pin 34 of the cargo platform pivot support cylinder 33.

With this configuration, when rotating left and right, the front and rear rotation pivot shafts 8 on the left and right opening sides are rotated 180 degrees and removed, and then rotated around the left and right pivot shafts 9a on the opposite side. By moving, the left and right ends of the loading platform F can be raised.

In addition, when rotating the loading platform F back and forth, the front and back pivot shafts 8 on the front and back sides to be opened are rotated 180 degrees and pulled out, and this time, the front and back pivot shafts 8 on the opposite side are centered. By rotating the loading platform F in the front and rear directions, the loading platform F can be opened.

Next, the configuration in which the side plate 2 can be rotated will be explained with reference to FIGS. 17 to 20.

A side plate pivot bracket 35 protrudes from the loading platform F,
A side plate pivot shaft 38 projects horizontally from the tip of the side plate pivot bracket 35 .

A locking shaft portion 38a is formed on the side plate pivot shaft 38, and a locking hole into which the locking shaft portion 38a is fitted is formed as a locking hole 36a in the pivot hole body 36 of the side plate 2. has been done.

When fixing the side plate 2 at a certain position, the locking shaft portion 38a
is inserted into the locking hole 36a and fixed, and when it is necessary to rotate the side plate 2 to adjust the position, move the side plate 2 in the direction of the urging spring 37 against the urging spring 37. By moving in parallel to , the engagement portion between the locking shaft portion 38a and the locking hole 36a is disengaged, and the side plate 2 can be rotated.

The biasing spring 37 and the side plate pivot shaft 38 are arranged in the same direction with respect to one side plate 2.

Fig. 9 is an enlarged side view of the prime mover E and transmission B-B of the transport vehicle, Fig. 10 is a plan view, and Fig. 1) shows normal driving of the safety device of the accelerator gear shift lever l of the control section A. FIG. 12 is a side sectional view of the normal low speed or stopped state, and FIG. 13 is a side sectional view of the accelerator shift lever 1 in the low speed or stopped state with the safety device working.

In FIGS. 9 and 10, power is transmitted from a pulley 41 of a prime mover E to a pulley 42 with a power transmission shaft load of 0 via a belt.

The power is transmitted from the power transmission shaft IO to the pump shaft of one of the H3T type transmissions 4 of the left and right transmissions B-B, and the power is transmitted from the pump shaft to the pulleys 18 and 40. pulley 4
The drive shaft of the cooling fan 19 is driven to zero. The cooling fan 19 blows cooling air to cool the entire motor E, H3T transmission 4, and reduction gear 5.

The swash plate shaft of the hydraulic pump of the HST type transmission 4 is rotated by the arms 43 to change the rotation speed of the hydraulic motor.

The arms 43, 43 are interlocked with the left and right speed change levers of the control section A via a link 46, an arm 45, and a link 47 via a remote control wire.

Further, the accelerator arm 48 of the prime mover E is connected to the accelerator gear shift lever 1 of the prime mover E by an accelerator wire 21.

Then, due to Operator M's incorrect operation, the aircraft goes out of control.
In the event of a fall from a high construction site, the shoulder rest provided on the control section A has a belt 50, so that operator M is pulled and the shoulder rest is pulled together with the belt 50. A safety device is constructed inside the control section A so that when the control section A is separated, the rotation of the prime mover E becomes slow or stopped.

The configuration of the safety device will be explained with reference to FIGS. 1) to 13.

The control section A is composed of a control box 20 and a back plate 24. A shoulder strap 50 is attached to the back plate 24, and the shoulder strap 50 is worn around the neck by the operator M.

Therefore, if the aircraft spins out of control and falls from the construction site, the control section A will be pulled from the accelerator arm 48, and the operator M will also fall.

In order to prevent this, the control box 20 and the back plate 24 are configured so that if the operator M pulls it beyond a certain level, the rotation of the motor E slows down or stops, and the control box 20 and back plate 24 come off.

In FIG. 12, the accelerator shift lever 1 is pivoted at a pivot point 03 of an arm plate 29, and the inner wire 21b of the accelerator wire 21 is connected to the tip of an arm 51 pivoted to the pivot point 03. .

And the eyeter wire 21a of the accelerator wire 21
The position of the receiver is determined by the outer receiver 28.

The outer receiver 28 is also pivotally supported by a pivot 02 provided in the middle of the arm plate 29, and the pivot 02 itself moves as the arm plate 29 rotates.

Further, the arm plate 29 is pivotally supported by the pivot portion 01.

In the present invention, the distance R2 between the pivot point Of and the pivot point 02 is configured to be smaller than the distance R1 between the pivot point 01 and the pivot point 03.

Further, a biasing spring 27 is interposed in the outer receiver 28, and the biasing force of the biasing spring 27 is set to about twice the operating force for operating the accelerator wire 21 by operating the accelerator gear shift lever 1. Therefore, while operating the accelerator gear shift lever l under normal conditions, the biasing spring 27 does not bend, only the arm 51 rotates, and the eyeter wire 21a remains fixed. The inner wire 21b inside moves back and forth to change the rotation speed of the prime mover E.

Further, the tip of the outer receiver 28 passes through the inside of a hole drilled in a connecting fitting 30, and a retaining nut is provided at the tip so that the position of the retaining nut can be adjusted, and the connecting fitting 30 is pivotally connected to a midway portion of the lock plate 22. .

The lock plate 22 has its tip secured to a lock bar 23, and the lock bar 23 is fixed to a back plate 24. Further, a shoulder strap 50 is engaged with the back plate 24.

In the above configuration, there is a risk that the transport vehicle will start running out of control and the aircraft will fall, and if the operator M is carrying the control unit A with the belt 50 on his shoulder, there is a possibility that the operator M will fall along with the aircraft. Because of this, the control section A is pulled.

When the control part A is pulled, the accelerator wire 21 becomes fully tensioned, the biasing spring 27, which does not bend under normal conditions, is bent, and the outer receiver 28 is moved by the accelerator wire 21.

When the outer receiver 28 moves, the arm plate 29 rotates around the pivot 01, and the position of the pivot 02 is pulled by the outer receiver 28 and moves.

Similarly, the pivot point 030 also moves.

Due to the rotation of the arm plate 29, the relationship R1>l≧2 is established, so the movement width of the inner wire 21b is larger than the movement width of the eyeter wire 21a, so that the accelerator shift lever 1 and the arm 51, the inner wire 21b pulled out from the eyeter wire 21a returns to the inside of the eyeter wire 21a, and the rotation of the prime mover E shifts to a low speed side or a stop side.

When the outer wire 21a is pulled with even stronger force, the retaining nut at the tip of the outer receiver 28 is pulled into the connecting fitting 30.
, the connecting fitting 30 rotates the lock plate 22 which was biased in the engagement direction by the biasing spring 25,
The lock bar 23 comes off.

When the lock bar 23 is removed, the back plate 24 is separated from the control box 20 and becomes free, the shoulder belt 50 remains on the operator M, and only the control section A is attached to the machine body.

Figures 21 and 22 are side and front views when a battery and electric motor are used as the prime mover E, and Figures 23 and 22 are
FIG. 24 is a drawing showing an embodiment in which the battery and the electric motor J are located in reverse order in the left and right directions.

In the embodiments up to FIG. 20, the prime mover E was explained using an engine, but in FIGS. 21 to 24, examples using a battery and an electric motor J as the prime mover E are shown.

In this case, there is no engine noise, and it is easier to shift gears and configure safety devices by remote control.

Also, as shown in Figures 23 and 24, by reversing the positions of the left and right batteries and the electric motor J, the left and right drive devices can be configured by installing exactly the same device front to back, reducing costs. It becomes cheaper.

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

As claimed in claim (1), in a transport vehicle equipped with a loading platform F, a prime mover E, a transmission B, and a traveling device, the prime mover E, the transmission B, and the traveling device are all arranged below the loading platform F, and the loading platform F
Because it has a shape without protruding parts, it can be used at construction sites, etc.
When transporting construction materials of various sizes and shapes, even long reinforcing steel aggregates, bent aggregates, etc. can be transported and placed.

As claimed in claim (2), by making the center of gravity position G approximately coincide with the center position of the loading platform 2, even if the center of gravity position is located at the center of the body of the conventional transport vehicle, the weight of the machine itself is large.
Furthermore, since the load is fixed, there are no problems such as overturning, but in the case of the transport vehicle of the present invention, the weight of the machine is small, so if the center of gravity G shifts when carrying materials, the machine body will fall. There is a risk of falling.

In contrast, in the present invention, the entire upper surface of the machine is made up of a loading platform F, and the center of gravity of the loading platform F is set to be the same as the center of gravity of the aircraft, so that even long aggregates can be placed on the loading platform F. , since the center of gravity G is large and does not move away from the center of the aircraft,
The aircraft will not roll over.

As claimed in claim (3), since the loading platform F is configured to be openable and closable, the prime mover E, transmission B, etc. are placed below the loading platform F, so the loading platform F becomes an obstacle when inspecting and repairing the vehicle. By making the loading platform F openable, this inspection and repair has become easier.

As claimed in claim (4), since the outer part of the crawler track C protrudes front and rear and left and right than the loading platform F, for example, it is difficult to transport carpets, tiles, interior materials, etc. to a site where a wall has been completed, or to transport waste materials. This eliminates the possibility of damaging the completed wall surface due to incorrect operation of the machine when transporting the wall.

As claimed in claim (5), since the control part A is provided separately from the aircraft body, the control part does not protrude above the loading platform F, and operation can be performed while viewing the entire site, which is safe.

As claimed in claim (6), the safety device in case of aircraft runaway is installed in the control section A.
Since it is configured inside the machine, in the event that the aircraft goes out of control, the shawl that comes out from the control section A will not be dragged and fall even when the operator M is wearing the belt 50.
Furthermore, by pulling the control part A, the motor E can be automatically slowed down or stopped.

[Brief explanation of the drawing]

Figure 1 is a side view of a transport vehicle loaded with reinforcing steel aggregates, etc. Figure 2 is a side view of a transport vehicle loaded with long aggregates,
Figure 3 is a side view with the wall material loaded, Figure 4 is a side view with the metal fittings storage bag loaded, Figure 5 is a side view with the loading platform F open to the front or rear, Figure 6 7 is a plan view showing the loading platform F and the base 3, and FIG. 8 is a plan view showing the prime mover E and transmission [B-H]. Figure 9 is an enlarged side view of the prime mover E and transmission B-B portion of the transport vehicle;
Figure 1) is a side sectional view of the safety device of the accelerator gear shift lever l of the control unit A in a normal running state, Figure 12 is a side sectional view of the normal low speed or stopped state,
Figure 3 is a side sectional view when the safety device is activated and the accelerator gear shift lever l is in a low speed or stopped state, Figure 14 is an exploded perspective view of the opening pivot of the loading platform F, Figure 15 is also a front sectional view,
Fig. 6 is a side sectional view, Fig. 17 is a side view showing the pivot portion of the side plate 2, Fig. 18 is a sectional view, Fig. 19 is a sectional view when the side plate 2 is rotated, and Fig. 20 is a side view of the side plate 2. Figures 21 and 22 are side views and front views when a battery and electric motor are used as the prime mover E, and Figures 23, 2, and 4 are when the battery and electric motor are used as the prime mover E. It is a drawing showing an example in which the left and right sides of the motor J are reversely positioned. A... Control unit B... Transmission C... Track E... Prime mover F... Loading platform G... Center of gravity K... Battery J... Electric motor... Accelerator gear shift lever 2...Side plate 4...H3T type transmission...Reduction device Applicant Yanmar Diesel Co., Ltd. Agent Patent attorney Kotobuki Yano - Part 8 Figure

Claims (6)

[Claims] (1) A transport vehicle equipped with a loading platform, a prime mover, a transmission, and a traveling device, characterized in that the prime mover, transmission, and traveling device are all placed below the loading platform, and the loading platform is shaped without protruding parts. Transport vehicle. (2) A transport vehicle according to claim (1), characterized in that the center of gravity of the body is made to substantially coincide with the center position of the loading platform. (3) A transport vehicle according to claim (1), characterized in that the loading platform is configured to be openable and closable. (4) In claim (1), the outer part of the crawler track is the loading platform 2.
A transport vehicle that is characterized by protruding forward, backward, left and right. (5) A transport vehicle according to claim (1), characterized in that the control section is provided separately from the fuselage. (6) The transport vehicle according to claim (5), characterized in that a safety device in case the aircraft goes out of control is configured inside the control section.