JP2000336695A - Tilt type jumbo (registered trademark) - Google Patents

Abstract

PROBLEM TO BE SOLVED: To put a revolving superstructure upper part in a horizontal or angled state by separating a revolving superstructure in two parts, and connecting the revolving superstructure upper part to a revolving superstructure floor part by a connecting pin so as to be able to laterally incline by the expansion of a hydraulic cylinder. SOLUTION: A revolving superstructure upper part 3 is mounted through a connecting pin 5 with a constant height space to a revolving superstructure floor part 2. Since the connecting pin 5 is on a center line passing through a revolving superstructure 1 longitudinally, the revolving superstructure upper part 3 can incline laterally. A hydraulic cylinder 6 is provided at one end of the revolving superstructure upper part 3. An operating lever 4 in a cabin 10 is operated to expand/contract the hydraulic cylinder 6 and thereby to incline the revolving superstructure upper part 3 in either lateral direction. In whichever state a base carrier 7 is inclined within a fixed range, the revolving superstructure 1 is therefore revolved, and the cutting edge of a bucket of a Jumbo can be placed parallel with the ground surface or inclined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt-type yumbo capable of tilting the upper part of a revolving structure of a yumbo right and left.

[0002]

2. Description of the Related Art Hitherto, there has been a yumbo having a structure in which a lower traveling body (7) can be divided into two parts, upper and lower, and the entire upper part of the lower traveling body (8) can be inclined.

[0003]

This has the following disadvantages. The upper and lower parts of the lower traveling unit are connected by pins, and the hydraulic cylinder attached to the lower traveling unit expands and contracts, so that the lower traveling unit can be tilted left and right with respect to the forward and backward traveling directions. For this reason, when working with the front part of the upper revolving structure facing the forward or backward direction of the lower traveling structure, the upper revolving structure can be leveled or tilted. However, when working in the direction in which the front of the upper revolving structure turns 90 degrees to the right with respect to the forward direction of the lower traveling
When working in the direction where the upper revolving body is turned, the upper revolving superstructure cannot be leveled or tilted at all. In other words, with this type of Yumbo, the effect is exhibited when the front part of the upper revolving structure faces in the forward or backward direction of the lower traveling structure, but has no effect when it is oriented in the right and left directions. .

[0004]

Means for Solving the Problems The upper revolving superstructure (1) is vertically moved 2
The revolving unit upper part (3) is connected to the revolving unit floor (2) by a connecting pin (5), and can be inclined left and right by expansion and contraction of a hydraulic cylinder (6).

[0005]

On the revolving unit floor (2), the revolving unit upper part (3) can be tilted right and left by the expansion and contraction of the hydraulic cylinder (6) with the connecting pin (5) as a fulcrum. In other words, the upper part of the revolving superstructure (3) can be leveled or angled within the movable range of the hydraulic cylinder (6), regardless of the state of the Yumbo on the ground.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below. (B) The revolving unit upper part (3) is attached to the revolving unit floor (2) at a fixed height via a connecting pin (5). (B) Since the connecting pin (5) is located on the center line passing through the upper revolving unit (1) in the front-rear direction, the upper part (3) of the revolving unit can be tilted right and left. (C) At one end of the upper part of the revolving superstructure (3), a hydraulic cylinder (6) is provided. (D) To operate this device, the cabin (10)
The hydraulic cylinder (6) can be expanded and contracted by operating the operating lever (4) inside the vehicle, and the revolving unit upper part (3) can be tilted to the left or right. (E) A boom (9), an arm (11), a bucket (12), and the like of a front attachment are attached to a front portion of the revolving superstructure upper part (3). Since the upper rotating body (1) can rotate 360 degrees, the operator can operate the operating lever (4) at an arbitrary rotating position to make the blade edge of the bucket parallel to the ground.

[0007]

[Effects of the Invention] On the site of dry ground or sandy ground, level the ground with the Yumbo bucket (12), or move the Yumbo to the place where the earth and sand are raised, and move the lower traveling body (7) to the horizontal position. Although it is possible to place the machine on a soft ground or in a narrow place with no space, it is difficult for the operator to place the machine in a horizontal position. FIG. 3 is an operation diagram of the present invention when the caterpillar (13) on the side opposite to the driver's seat of the yumbo (hereinafter referred to as the right side of the yumbo) goes to the ground and the yumbo is tilted to the right. At this time, when the operating lever (4) is tilted to the left, the hydraulic cylinder (6) is extended, and as shown in FIG.
Can be leveled. FIG. 4 is an operation diagram of the present invention in a case where the caterpillar (13) on the driver's seat side of the yumbo (hereinafter referred to as the left side of the yumbo) has passed and the yumbo has tilted to the left. At this time, when the operation lever (4) is tilted to the right, the hydraulic cylinder (6) is contracted and the upper part of the revolving structure (3) is horizontal as shown in FIG. This tilt-type yumbo allows the operator to turn the upper revolving unit (1) in the direction desired by the operator, regardless of the inclination of the lower traveling unit (7) in various grounds and within a certain range. By operating the lever (4), the cutting edge of the yumbo bucket can be instantaneously made parallel or inclined with the ground.

[Brief description of the drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a side view of the present invention.

FIG. 3 is an operation diagram of the present invention.

FIG. 4 is an operation diagram of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper revolving unit 2 Revolving unit floor 3 Revolving unit upper part 4 Operating lever 5 Connecting pin 6 Hydraulic cylinder 7 Lower traveling unit 8 Lower traveling unit upper part 9 Boom 10 Cabin 11 Arm 12 Bucket 13

Claims (1)

[Claims] An upper revolving unit (1) is divided into two parts, upper and lower, and a revolving unit floor (2) and a revolving unit upper part (3) are spaced by a fixed height by a connecting pin (5). Join. In addition, a tilt-type yumbo that connects them by a hydraulic cylinder (6) at the end.