JP2000257107A - Multi-purpose blade of civil engineering/construction machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-purpose blade of vinyl engineering/construction machinery capable of turning singly an earth-moving plate when the blade is used as an outrigger for stabilizing the body other than conventional work such as ground leveling/push soil or the like, at the same time, making the contact pressure lower by increasing a contact area, prevent the blade from catching into the ground to promote the stability of the body and to prevent the damage in the ground. SOLUTION: An arm 2 of a blade is made pivotable by hydraulic cylinders 6 and 11 and, at the same time, an earth moving plate 4 connected to the arm 2 is also loaded in a rotatable manner by the hydraulic cylinders 6 and 11 to make it possible to freely change a contact angle of the earth moving plate 4 to the ground surface. In order to promote stability in the case of contact with the ground, a plate is fixed to the lower surface of the earth moving plate 4 coming into contact with the ground surface to make a flat section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blade for civil engineering and construction machinery, and more particularly to a blade used as an outrigger for stabilizing the machine body, except for operations other than leveling and pushing soil.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a blade of a civil engineering / construction machine for performing leveling / plowing work has an earth removal plate and an arm fixed thereto, and the earth removal plate can only rotate integrally with the arm. It was not possible to rotate only the earth removal plate. However, in an actual operation, the blade is not only used for leveling and excavation work, but may be used to stabilize the fuselage and to contact a grounding plate of the blade to obtain a reaction force. In this case, with the conventional blade which cannot rotate only the earth removal plate, the edge portion of the end of the earth removal plate may not be able to obtain sufficient stability because the edge portion at the tip of the earth removal plate may not be able to obtain sufficient stability or may damage the pavement surface such as asphalt. there were.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to make a discharge plate independently rotatable and to make a ground contact portion of the lower surface of the discharge plate with the ground flat. To stabilize the fuselage.

[0004]

In order to achieve the above object, according to the present invention, an arm of a blade is made rotatable by a hydraulic cylinder, and a discharge plate connected to the arm is also mounted to be rotatable by a hydraulic cylinder. The grounding angle of the earthing plate to the ground can be freely changed, and furthermore, a flat portion is provided on the lower surface of the earthing plate that touches the ground to improve the stability at the time of grounding. .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a side view of an embodiment of the blade according to the present invention, and FIG. 2 shows a plan view of an embodiment of the blade according to the present invention. FIG. 3 shows a side view of the blade according to the present invention when the earth discharging plate is grounded, and FIG. 4 shows a side view of the blade according to the present invention when the earth and sand are loaded.

Reference numeral 1 denotes a lug fixed to a civil engineering / construction machine main body (not shown). A pair of arms 2 provided on the left and right are rotatably mounted on the lug 1 by pins 3 so as to be rotatable. The other end of the arm 2 is rotatably connected to a lower portion of a bracket 4 a fixed to the back surface of the earth discharging plate 4 by a pin 5.
The cylinder side of a hydraulic cylinder 6 arranged side by side with the arm 2 is pivotally connected to the upper part of a bracket 4a fixed to the rear surface of the earth discharging plate 4 by a pin 7, and the rod side of the hydraulic cylinder 6 is located on the upper part of the arm 2 And is pivotally mounted by pins 9 to a bracket 8 fixed substantially at the center in the axial direction. The left and right arms 2 are connected by a stay 2a, and a bracket 10 is fixed to a central portion of the stay 2a. A cylinder side of a hydraulic cylinder 11 is pivotally connected to the bracket 10 by a pin 12. The rod side of the hydraulic cylinder is connected to a lug 1 fixed to the civil engineering / construction machine body.
3 is pivotally connected to a pin 14.

Further, a plate 4b is fixed to the ground contact portion of the earth discharging plate to increase the contact area with the ground.

Next, the operation of the present invention will be described.

[0010] Normally, the leveling / plowing operation is performed by grounding only the tip of the earth discharging plate as shown in FIG. When the blade is used as an outrigger for stabilizing the fuselage, the hydraulic cylinder 6 is contracted to rotate the discharge plate 4 clockwise (clockwise) in FIG. When the arm 2 is extended and the arm 2 is rotated counterclockwise (left rotation) in FIG. 1 or 3, the plate 4b fixed to the lower surface of the earth discharging plate 4 can be freely adjusted to the inclination of the ground.

Also, as shown in FIG.
Is further reduced, the earth and sand can be loaded on the earth discharging plate 4. If the hydraulic cylinder 11 is shortened and the earth discharging plate 4 is lifted, the earth and sand can be transferred to a different place, and the earth and sand can be discharged. In the case of soiling, if the hydraulic cylinder 6 is extended to the maximum, the opening of the earth discharging plate faces downward, and earth discharging becomes possible.

The present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

[0013]

The present invention can be used as an outrigger for stabilizing the aircraft, as well as being able to perform the original leveling and pushing work of the blade by the structure described in detail in the above-described embodiment. By increasing the contact area, the contact pressure can be reduced, and furthermore, extremely remarkable effects such as the ability to transport earth and sand can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a blade according to the present invention.

FIG. 2 is a plan view of an embodiment of the blade according to the present invention.

FIG. 3 is a side view of the blade according to the embodiment of the present invention when the blade is grounded.

FIG. 4 is a side view of the embodiment of the blade according to the present invention when earth and sand are loaded.

FIG. 5 is a side view of a conventional blade.

[Explanation of symbols]

 2 Arm 4 Discharge plate 6 Hydraulic cylinder 11 Hydraulic cylinder

Claims (2)

[Claims] 1. A blade of a civil engineering / construction machine having an arm with an earth removal plate rotatably mounted on a front thereof, wherein one end of the arm is pivotally attached to a main body of the civil engineering / construction machine and the other end of the arm is pivotally mounted. One end of a hydraulic cylinder juxtaposed with the arm is pivotally attached to the upper portion of the bracket, and the other end of the hydraulic cylinder is fixed to the arm at the upper end of the bracket. A blade of a civil engineering / construction machine, wherein each of the arm and the earth removal plate is rotatable by being pivotally attached to a bracket. 2. A blade for a civil engineering / construction machine according to claim 1, wherein a flat portion capable of grounding is provided on a lower surface of said earth discharging plate.