JP3337914B2 - Cargo handling vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling vehicle used for transporting a slag pot containing slag or inverting a slag pot, for example, in an ironworks.

[0002]

2. Description of the Related Art Conventionally, for example, when carrying a slag pot, a cargo handling vehicle 31 shown in FIGS. 3 to 5 has been used.
That is, the cargo handling vehicle 31 includes the truck head 32 and the trailer 35
The truck head 32 is composed of wheels 33 and a driving unit 34, and the trailer 35 is a wheel 36
A pair of left and right outriggers 60 is provided at the rear of the loading platform 37 having And track head 32
The front part of the trailer 35 is connected to the rear part via a vertical shaft 39 or the like.

The cargo handling device 40 provided on the loading platform 37 includes:
It has a pair of booms 41 in the left-right direction (vehicle width direction). Thus, it is configured to be rotatable in the up-down direction and the front-back direction. And between the free ends of both booms 41, a connecting member in the left-right direction
44 united.

[0006] A hook-shaped locking member is provided on the inner surface of the boom 41 at an intermediate portion facing each other via a left-right pin 45.
The locking body 46 is provided with a locking portion 47 that is opened upward and rearward. And the boom 41
A pair of left and right cylinder devices 48 for rotating the cylinder are provided. The body 49 of these cylinder devices 48 is
A piston rod 50 connected to a bracket 51 provided at the front end of 37 via a pin 52 and extending rearward
It is connected to a bracket 53 on the 41 side via a pin 54.

[0005] A pair of outriggers 60 are respectively
An outrigger main body 61 attached to the rear end of the outrigger 37 by bolt-up, an operating body 62 which is retracted downward by hydraulic pressure with respect to the outrigger main body 61, and a disk-shaped landing attached to a lower end of the operating body 62 It is composed of the body 63 and the like.
On the outer surface side of the outrigger main body 61, an instruction box 65 containing a stop lamp, a direction indicator, a rear confirmation lamp, and the like is attached by bolt-up.

A protective cover 66 is provided on the instruction surface (rear surface) side of the instruction box 65, and the lid 66 is configured to be openable and closable up and down via hinge pins 67 and the like. In order to open and close the lid 66, a stop motor 68 is provided on the front side of the outrigger main body 61, and a cable 69 coming out of the stop motor 68 is connected to an arm 70 provided on the lid 66 side. Have been. Instruction box
The 65 is provided with a cable guide 71 and the like.

According to such a conventional configuration, for example, when lifting and transporting a slag pot 75 containing slag installed on the floor of an ironworks, the cargo handling vehicle 31 moves backward and approaches the hot slag pot 75. Then, the lid 66 is closed to protect the indication surface of the indication box 65. That is, at any time, by turning on / off a switch (not shown) in the operation unit 34, for example, the stop motor 68 is operated, the cable 69 is pushed out, and as shown by a solid line in FIG. The lid 66 is closed downward, and the indication surface of the indication box 65 is closed.

In a state where the cargo handling vehicle 31 is moved backward and stopped at a predetermined position, the outrigger 60 is operated as shown by the imaginary line in FIG. 3 and the solid line in FIG. The landing body 63 is landed.

In this state, the two booms 41 are rotated rearward around the left-right axis 43 by the extension of the cylinder device 48, and are moved to the pair of left and right hanging pins 76 provided on the slag pan 75.
The locking portion 47 of the locking body 46 is engaged. Then, by contracting the cylinder device 48, the slag pot 75 is first lifted through the boom 41 which is turned forward while being turned upward, and the boom 41 is turned forward and then turned downward. Thus, the slag pot 75 can be positioned on the loading platform 37 as shown by the solid line in FIG. 3 and the imaginary line in FIG.

Then, the switch in the operation unit 34 is turned on.
By performing the OFF operation, the stop motor 68 is operated in reverse, the cable 69 is pulled back, and as shown by the phantom line in FIG. 5, the lid 66 is opened upward and the indication surface of the indication box 65 is opened. You. Then, the outrigger 60 is reversely operated, the operating body 62 is retracted upward, and the landing body 63 is lifted and taken off, so that the intended transport traveling by the cargo handling vehicle 31 can be performed.

[0011]

According to the above-mentioned conventional configuration, the driver sometimes forgets to turn on / off the switch in the driving unit 34. Then, for example, when the cargo handling vehicle 31 moves backward while approaching the slag pot 75 with the lid 66 opened upward and approaching the hot slag pot 75, the stop lamp, the direction indicator, the rear confirmation lamp, and the like of the indicating box 65 are exposed to high temperatures. You will not be able to defend. Further, when the cargo handling vehicle 31 is transported while the lid 66 is closed downward,
The transportation is performed in a state where the stop lamp, the direction indicator, and the like of the instruction box 65 are hidden, and the function is not exhibited. In addition, the reliability of the electric stop motor 68 is reduced due to repeated high heat.

According to the first aspect of the present invention, the lid can be automatically closed by operating the outrigger to land, and the lid can be automatically opened by operating the outrigger to take off. It is an object of the present invention to provide such a cargo handling vehicle.

[0013]

According to a first aspect of the present invention, there is provided a cargo handling vehicle for loading and unloading a conveyed object using a cargo handling device provided on a cargo bed. An outrigger is provided at the rear of the carrier, and an outrigger body of the outrigger is provided with an indication box having an indication surface directed rearward, and the indication box is provided with a lid for opening and closing the indication surface. Further, the outrigger body is provided with an interlocking device that opens and closes the lid body in mechanical interlock with the operation of the outrigger.

Therefore, according to the first aspect of the present invention, when transporting an article to be transported, the cargo handling vehicle is moved backward to approach the article to be transported, and in a state where it is stopped at a predetermined position, the outrigger is extended to land. . Thus, the cover can be closed in mechanical linkage with the extension of the outrigger, and the indication surface of the indication box can be closed for protection. That is, when the outrigger lands, the lid can be automatically closed automatically. In this state, the cargo is loaded on the carrier by the cargo handling device, and the outrigger is contracted to take off. Thus, the cover can be opened in mechanical linkage with the contraction movement of the outrigger, and the indication surface of the indication box can be opened. In other words, by taking off the outrigger,
The lid can be opened automatically mechanically. After that, the intended transport traveling by the cargo handling vehicle can be performed.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
A state adopted for carrying a slag pot will be described with reference to FIGS. The outrigger 1 will be described below, but the outrigger 1 is provided on both sides of the rear end of the loading platform 37 of the cargo handling vehicle 31 as in the above-described conventional configuration.

That is, each of the pair of outriggers 1 includes an outrigger body 2 which is attached to the rear end of the loading platform 37 by bolt-up, an operating body 3 which is moved down and out of the outrigger body 2 by hydraulic pressure, and Actuator 3
And a disk-shaped landing body 4 attached to the lower end of the body. On the outer surface side of the outrigger body 2, an instruction box 5 containing a stop lamp, a direction indicator, a rear confirmation lamp, and the like is attached by bolt-up. A lid 6 is provided on the instruction surface (rear surface) side of the instruction box 5, and the lid 6 is configured to be openable and closable up and down via a hinge pin 7 or the like.

The outrigger body 2 is provided with an interlocking device 10 for opening and closing the lid 6 in mechanical linkage with the operation of the outrigger 1. That is, a triangular plate-shaped first link 13 is swingably provided via a bolt-shaped vertical pin 12 on a bracket 11 continuously provided forward from the indication box 5 by welding. One of the free ends,
An arm 8 continuously provided from the central portion of the lid 6 is relatively rotatably connected via a first rod 14 or the like.

A block 15 is welded to the front side of the outrigger main body 2, and a triangular plate-shaped second link 17 is swingably provided on the block 15 via a bolt-shaped front-rear direction pin 16. One free end of the second link 17 and the remaining free end of the first link 13 are connected to a second rod 18
It is connected so as to be relatively rotatable via such as. further,
The remaining free end of the second link 17 has a vertical rod body
19 are connected so as to be relatively rotatable.

The rod body 19 has a connecting portion 19A connected to the second link 17, a cylindrical portion 19B having an upper end connected to the connecting portion 19A by welding, and an inner fit in the cylindrical portion 19B. The landing body 4 is formed of a slidable rod portion 19C or the like, and the landing body 4 can freely contact the lower end of the rod portion 19C.

On the front side of the outrigger body 2,
Upper guide body 20 that guides the vertically moving cylindrical portion 19B fitted inside.
And a lower guide body 21 that guides the raising and lowering of the rod portion 19C fitted therein are fixed by welding. Further, a stopper ring 22 that abuts on the upper surface of the lower guide body 21 to restrict the lowering limit of the rod body 19 is fixed to the intermediate position of the rod portion 19C by welding.

A tension spring 24 for urging the rod body 19 downward is provided between the locking piece 23 from the cylindrical portion 19B and the upper guide body 20 side.
A compression spring 25 is provided between the lower surface of the connecting portion 19A and the upper surface of the rod portion 19B to urge the rod portion 19C downward with respect to the cylindrical portion 19B. Here, the spring force of the compression spring 25 is set to be stronger than that of the tension spring 24.

The operation of the above embodiment will be described below. For example, when lifting and transporting a slag pot 75 containing slag installed on the floor of an ironworks, the cargo handling vehicle 31 moves backward and approaches the slag pot 75 with high heat. At this time, as shown in FIG. 1, the outrigger 1 is contracted and moved, the operating body 3 is retracted upward, and the landing body 4 is lifted and taken off. Then, the raised landing body 4 is
The rod body 19 is lifted against a tension spring 24. At this time, the compression spring 25 is compressed.

As the rod body 19 rises, the second link
17 is swung upward around the front-rear direction pin 16, whereby the second rod 18 is pulled inward, and the first link 13 is swung inward around the vertical pin 12. Thereby, the lid 6 is opened upward around the hinge pin 7,
The indication surface of the indication box 5 is opened.

With the cargo vehicle 31 moving backward and stopping at a predetermined position, as shown in FIG. 2, the outrigger 1 is operated, the operating body 3 is projected downward, and the landing body 4 is landed. Then, as the landing body 4 descends, the tension spring
The rod body 19 is lowered by the spring force of 24, and this lowering is performed until the stopper ring 22 contacts the lower guide body 21. At this time, the compression spring 25 is extended.

The lowering of the rod body 19 causes the second
The link 17 is swung downward around the front-rear direction pin 16, and this swing causes the second rod 18 to be pushed outward, whereby the first link 13 is swung outward about the vertical pin 12. And
As a result, the lid 6 is closed downward around the hinge pin 7, and the indication surface of the indication box 5 is closed, so that the indication face of the indication box 5 can be protected. That is, the landing operation of the outrigger 1 allows the lid 6 to be automatically mechanically closed.

In this state, as described above, the cargo handling device 40
Allows the slag pot 75 to be loaded on the carrier 37. afterwards,
When the outrigger 1 is reversely operated, the operating body 3 is retracted upward, and the landing body 3 is raised and taken off, the lid 6 is opened upward as shown in FIG. The indication surface of the indication box 5 is opened. That is, when the outrigger 1 is taken off, the lid 6 can be automatically opened automatically. As a result, the intended transport traveling by the cargo handling vehicle 31 can be performed.

The driving section 34 is provided with an indicator indicating the operation of the outrigger 1. When the outrigger 1 is extended, a red lamp is lit to give the driver attention. Thus, forgetting to operate the outrigger 1 does not occur.

For example, during transportation traveling, FIG.
When the outrigger 1 in the state shown in FIG. 2 is slightly extended due to natural descent or the like, and the rod body 19 attempts to descend accordingly, the repulsive force (elongation) of the compression spring 25 causes the cylindrical portion 19B to extend.
In this state, only the rod portion 19C is lowered, and the open posture of the lid 6 is maintained. In other words, a stroke margin can be made for some extension of the outrigger 1.

In the above-described embodiment, the slag pot 75 is shown as a conveyed object, but it can handle various conveyed objects, and the cargo handling device 40 can also adopt various types. It is.

The above embodiment (conventional embodiment)
In the above, an articulate type in which the trailer 35 is towed with respect to the track head 32 as the cargo handling vehicle 31 is shown, but this is not the case even if the truck head and the loading platform are rigid rigid frame type cargo handling vehicles. Good.

[0031]

According to the first aspect of the present invention, the lid can be automatically closed mechanically by operating the outrigger to land, and the lid can be mechanically closed by operating the outrigger to take off. Can be opened automatically. Therefore, the driver does not need to turn the switch on and off,
In addition, it is possible to always reliably protect the instruction surface of the instruction box, and to always exert the instruction function during transport traveling. Furthermore, since it is mechanical, reliability is not always impaired even when high heat is repeatedly applied.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention, and is a perspective view of an outrigger portion of a cargo handling vehicle at the time of landing.

FIG. 2 is a perspective view of the cargo handling vehicle when an outrigger portion is taken off.

FIG. 3 shows a conventional example and is a side view of a cargo handling vehicle.

FIG. 4 is a plan view of a cargo handling device in the cargo handling vehicle.

FIG. 5 is a perspective view of the cargo handling vehicle when the outrigger portion lands.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outrigger 2 Outrigger main body 3 Operating body 4 Landing object 5 Instruction box 6 Lid 10 Interlocking device 13 1st link 14 1st rod 17 2nd link 18 2nd rod 19 Rod body 19A Connecting part 19B Tube part 19C Rod part 23 Stopper 24 Tension spring 25 Compression spring 31 Cargo handling vehicle 37 Cargo carrier 40 Cargo handling equipment 75 Slag pot (transported object)

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60S 9/00-9/22 B60P 1/48 B66C 23/78 B66F 9/075

Claims (1)

(57) [Claims] An outrigger is provided at a rear portion of a loading platform, and a pointing surface of an outrigger body of the outrigger is provided at a rear side thereof. A pointing box is provided, and the pointing box is provided with a lid that opens and closes the pointing surface, and the outrigger body is provided with an interlocking device that opens and closes the lid in mechanical linkage with the operation of the outrigger. A cargo handling vehicle characterized by being used.