JPS59118539A - Dump car - Google Patents

Abstract

PURPOSE:In a dump car where a load box is pivoted at the rear end of chassis while the load box is made inclinable by an elevating means arranged between them, to facilitate loading/unloading by providing a load elevating means in the load box thereby inclining the load considerably. CONSTITUTION:Under the state where long length material 206 is mounted in step in a load box 1, a hydraulic cylinder 103 of an elevating means 101 arranged between the chassis 2 and load box 1 is first extended to incline the material 206 together with the load box 1. Then a hydraulic cyliner 203 of a load elevating means (A) is extended to lift a sliding member 202 and a coupling member 205 stretched at the lower end thus to further incline the material 206 mounted in step on a coupling member 205 against the load box 1. Consequently the material 206 can be loaded/unloaded easily from the load box 1. In order to load the material 206 onto the load box 1, said operations should be reversed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dump truck used for transporting objects such as wood and other construction materials that are long, heavy, and relatively difficult to handle (hereinafter referred to as long objects).

As disclosed in Japanese Patent Publication No. 55-35224, this Keyaki dump truck has an approximately 80mm
It is known that a grinding stone is tilted at an angle of +tA up to '' and then a long object is unloaded from a packing box.

However, if the cargo box is tilted up to 80 degrees, the center of gravity of the cargo box will be moved to the rear of the pivot point with the rear end of the chassis due to the back angle being inclined to around 50 degrees. A force is generated, and for this reason, the hydraulic cylinder for the lifting means had to be an expensive double-diameter type.

The present invention has been made with this in mind, and as shown in FIGS. This is a cargo box that is loaded so that it can be loaded, and a floor plate 6 is laid at the bottom, and the side edges of this floor plate 6 are erected.
+4, a front wall 5 erected at the front end, and a rear wall 6 inclined at an angle of about 600.

Is 101 the chassis? and the lifting means installed between the cargo box 1 and the cargo box 1.
A hydraulic cylinder 10 is mounted on the subframe 102 on the chassis 2.
The base of 6 is pivoted, and a triangular plate 104 is attached at the tip.
It is pivoted at the top of the.

The right end of this triangular plate 104 is connected to the floor plate 6N surface of the cargo box 1, and one end is attached to the left end of the subframe 10.
The other end of the tension rod 105, which is pivotally supported by 2, is connected.

Next, to explain the load lifting means A, guide members 201 and 201 are installed upright on both side walls 4, 4 of the central part of the cargo box 1, and inside this guide member 201 there is a vertically slidable member. A sliding member 202 is fitted, and the guide member 2
The distal end of a hydraulic cylinder 206 whose base end is pivoted to the lower end of the slide member 202 is pivoted 204 to the approximate center of the sliding member 202.
2 can slide up and down with respect to the guide member 201. On the other hand, a connecting member 205 is installed between the lower ends of the sliding members 20 and 202, and elongated objects 206 are stacked on this connecting member 205.

Next, to explain the effect of the present invention, as shown in FIG. When the hydraulic cylinder 106 of the lift 14 means 1U1 starts to extend, the long object 206 as well as the cargo box 1 are also tilted.
1F is tilted until the rear wall 6 of the cargo box 1 touches the ground.

At this time, the cargo box 1 and the elongated object 206 are tilted approximately 50'.

After that, when the hydraulic cylinder 206 of the load lifting means A starts to extend, ! 1! The connecting member 205 installed at the lower end of the J sliding member 202 and the lower end of the sliding member 202 also begins to rise, and the long objects 206 stacked on the connecting member 205 move around the lower end. (Ai Wtl is further tilted by about 60°?ρ, the load lifting means A stops ascending northward, and the elongated object 206 is thus tilted by about 80° with respect to the ground.

Therefore, the long object 206 tilted at 80° is hrj
From 1st to 1st, the ratio is easily hit.

Incidentally, in order to insert the elongated object 2θ6 into the package 1, the procedure described above can be reversed.

Next, a second embodiment of the present invention will be explained with reference to FIG. Box 8 is the same as the first mE example with floorboard 6, +1! lt% 4.4 and a front wall 5, and the auxiliary cargo box 9 is pivoted to the rear opening of the main cargo box 8, and has a floor plate 6 and side walls 4, 4 similar to the main cargo box 8, and It is composed of a rear wall 10 that is inclined at about 8001.

On the other hand, a cable nL11.11 is pivotally supported at the middle part and rear end of the upper surface of the side walls 4, 4 of the mJ main cargo box, and a cable whose one end is fixed to the front part of the auxiliary cargo glaze 9 is attached. 12 passes through FiiJ pulley 11.11, and the other end is -j mark # member 202
・Similar to the first embodiment, loading 9 and lifting 1
4. In conjunction with the simultaneous lifting of means A, the auxiliary cargo box 9 can be swung. That is, by tilting the cargo box 1 by about 50 degrees and then raising the load lifting means A, the auxiliary cargo box 9 is moved along with the elongated object 206.
It is tilted once until the rear wall 10 touches the ground, and as a result, the long object can be tilted up to about 80 degrees.

As described above, according to the present invention, the cargo box can be tilted up to about 80 degrees by raising the cargo lifting means, and the cargo box can be tilted up to approximately 80 degrees. This allows chestnuts to be unloaded from the cargo box, and the cargo box does not have to be tilted beyond the maximum inclination angle, thereby preventing the pulling force generated on the chassis and the lifting means assigned to the load. To be this? #An inexpensive single-acting hydraulic cylinder may be used for the lifting stage.

lA N-direction spacer diagram 1 is for illustrating an embodiment of the present invention, and the first
Bl [1 Fig. 14 o1 of the first embodiment, Fig. 2 is the 1st
FIG. 6 is a side view of the central part of the actual #ti example, and FIG. 6 is a side view of the actual #ti example.

1...Cargo box, N...Chassis, 101...1
4- Means, A... Load lifting means.

Claims (1)

[Claims] In a dump truck in which a cargo box is pivotally supported at the rear end of the chassis, and the cargo box can be tilted appropriately by a lifting means arranged between the chassis and the cargo box, one box is equipped with a means for lifting and lowering a load. Features a dump truck.