JPS6018573B2 - power dump truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a three-way dump truck in which a cargo platform mounted on a movable machine frame body is tilted arbitrarily in three directions, both left and right as well as in the direction of movement of the machine.

Conventional devices of this type have disadvantages in that the support portions that support the loading platform are formed of spherical formations, making the structure complex and difficult to process, and that the loading platform cannot be tilted smoothly. Therefore, in the present invention, a hydraulic cylinder is pivotally mounted at the lower center of the loading platform, and fulcrum pins are located at the lower four corners of the loading platform parallel to the longitudinal direction of the aircraft, while fulcrum pins are provided on the side of the main body of the machine frame that supports the loading platform. The seat body with the Sekiguchi part and the clasp with the Sekiguchi part, which support each other competitively, are repositioned so that they can be freely engaged and disengaged, and are mounted via the pivot shaft on the front side of the machine among the said catch bodies. To provide a power dump truck which eliminates the above-mentioned drawbacks by making it freely rotatable and constitutes a three-way dump truck, and which has a simple structure and extremely smooth operation. An embodiment of the present invention will be described below in detail based on the drawings. 1 is a machine frame body equipped with crawler-type traveling gear 2 on both sides of the lower part, a loading platform 3 is mounted on the upper part, and a prime mover 4 is mounted on the rear side. ing.

Reference numeral 5 denotes a telescopic hydraulic cylinder interposed between the lower surface of the horizontal joint 3 and the lower frame 6 of the machine frame body 1, and as shown in FIG. ' and rotatably around machine shafts 8, 8'.

Numeral 9 is a fulcrum pin that protrudes from the four corners of the lower surface of the cargo platform 3 in the longitudinal direction of the machine body, and 10 is a mounting bracket to which the fulcrum pin 9 is attached.

Reference numeral 11 denotes a receiving seat part for supporting the fulcrum pin 9, and the rear receiving seat part A of the loading platform, as shown in FIG. A seat body 15a having a shape formed therein is provided protruding from the machine frame body to support the fulcrum pin 9 with iron, and a catch 17 having a closing portion 16 is rotated in the central recess 14 of the seat body 15a. They freely support their competitors. Reference numeral 18 denotes a grip bar fixed to the outside of the clasp, and by rotating the core combing lever 18, the clasp 17 can be made to have the entrance portion 16 facing upward or facing downward as shown in FIG. .

When it is placed in the downward position as shown in FIG. 4, the fulcrum pin 9 which is engaged with the central portion will not come out upwards, so that the loading platform will be fixed to the machine frame body. In addition, as shown in FIG. 5, the receiving seat part B at the front of the loading platform has an opening 12 only in the upper part and a receiving member 15b having a notch 13 cut out in the center to form a recess 14. It protrudes from the machine frame main body 1 through.

A clasp 17 having a gate 16 on one side is rotatably supported in a recess 14 provided in the central paddy cutout 13 of the receiving seat body 15b. Therefore, by rotating the grip lever 18 provided on the catch 17, the fulcrum pin 9, which is engaged in the seat body 15b, will not come out upwards, and the cargo platform will be fixed to the machine frame body 1. Incidentally, since the catch body 15b is connected to the machine frame main body 1 via the rotation support shaft 19, the loading platform can be moved to the rotation support shaft 19 while the fulcrum pin 9 is engaged and connected to the support body 15b. It can be rotated towards the front of the aircraft. The embodiment of the present invention has the above-mentioned configuration, and therefore, when fixing the loading platform to the machine frame body, the clasps 1 of each of the catch bodies 15a and 15b of the front and rear catch parts A and B are
[Closed portion of 7] Fix the fulcrum pin 9 and the loading platform with the 6 facing downward.

Then, the aircraft is driven to the loading position and the earth and sand are loaded onto the loading platform, and then transported to the release position and released. By operating the clasp 17 only on the seat A side of the
is in an upward state. When pressurized oil is introduced into the hydraulic cylinder 5 located below the loading platform, the hydraulic cylinder 5 expands and the loading platform is tilted around the support shaft 19 of the receiving seat B. It is possible to release dirt, etc. in front of the machine frame. In addition, when tilting the loading platform to the left side of the machine body as shown in Fig. 7, operate the clasp 17 on the opposite side (right side) of the front and rear seats A and B of the machine body to turn the closing part 16 upward. When the hydraulic cylinder is actuated, the loading platform rotates around the left fulcrum pin 9, allowing sand, etc., to be removed from the loading platform. Also, if you want to lower it to the right side of the aircraft frame, just operate in the opposite direction to the above. 1. In conventional devices of this kind, the support part that supports the cargo platform was made of spherical iron, so the structure of this joint part was complicated and difficult to machine and assemble, but in the case of the present invention, Since the fulcrum pin is positioned and iron-supported by the seat body with the gate part, the structure is simple and processing and assembly are easy.

In addition, since the competing parts are strongly constructed, they can withstand long-term use without being worn out or accidentally damaged. 2
In addition, with the conventional model, it was difficult to operate the cargo platform when tilting it in any direction, but in the case of the present invention, the machine frame body and the cargo platform can be engaged and disengaged simply by turning the grip lever, which prevents erroneous operation. It is possible to reliably prevent unexpected accidents.

3. Furthermore, the present invention has great advantages in that maintenance and inspection are easy, and work can be carried out efficiently while the structure as a whole is simple.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall side view of a power dump truck equipped with the device of the present invention, and FIG.
The figure is a plan sectional view of the main part of the present invention, and Figures 3 and 4 are front and side views of one side of the loading platform seat. Figures 5 and 6 are front sectional views of the side of the loading platform seating. The side sectional view and FIG. 7 are front views showing the operating state of the loading platform. 1... Machine frame body, 3... Loading platform, 5...
... Hydraulic cylinder, 9 ... Fulcrum pin, 12 ... Opening part, 15 ... Receiving body, 16 ... Sekiguchi part,
17... Clasp. Monobako grandson? Sumie Zutsu Tsuyoshi Sokuzu Tsutomu 01 Diagram with diamonds

Claims (1)

[Claims] 1 A box-shaped loading platform 3 is positioned in front of the machine frame body 1, and the prime mover 4 and driver's seat are positioned at the rear.
In the case where a telescopic hydraulic cylinder 5 is pivotally connected to the lower side of the loading platform 3 so that the loading platform 3 can be raised and lowered, the loading platform 3 can be tilted.
While the fulcrum pins 9 are positioned and fixed in the lower four corners in the longitudinal direction of the machine frame, the fulcrum pins 9 are fitted onto both left and right outer surfaces of the machine frame main body 1 that supports the loading platform 3, respectively. The receiving seat bodies 15, 15 with openings are directly mounted, and the receiving seat bodies 15,
A stopper 17 with an opening, which is rotatably fitted into the recess 14 of 15, is positioned, and the stopper 17 is rotated half a turn to open and close the opening 16, thereby connecting it to the fulcrum pin 9 on the loading platform side. It can be freely engaged and detached, and only the front side of the loading platform of the receiving seat body is directly attached to the machine frame main body 1 via horizontal pivot shafts 19, 19, and the clasp 17 is opened and closed as appropriate. As a result, the loading platform 3 can be tilted forward of the machine body around the pivot shafts 19, 19, and one of the left and right fulcrum pins 9, 9 can be tilted forward.
A power dump vehicle characterized by having a loading platform that can be tilted in the left and right directions as well as tilt freely in three directions.