JPS586923Y2 - Buried pipe attachment device for trench excavator - Google Patents

Description

[Detailed description of the invention] The present invention relates to a buried pipe installation device for a trench excavator that excavates a trench, rewinds the buried pipes into the trench, and buries them one after another. The purpose is to allow one person to easily and safely install the device.

A trench excavator is conventionally known, in which a buried pipe such as a corrugated pipe is provided on the machine frame, and at the same time as a trench is excavated by an excavation section, the buried pipe is wound back into the trench and buried in sequence.
This is used to improve the drainage of wet fields and turn them into dry fields.

However, as buried pipes, corrugated pipes with many holes drilled around them are used, and although they are extremely heavy, the conventional structure was to attach the winding frame etc. directly to the top of the trencher's frame. Therefore, it was extremely difficult and dangerous for a single worker to install it.

The present invention solves these conventional problems, and its features include a trench excavator that excavates a trench and unwinds and sequentially buries the buried pipe into the trench. A buried pipe attachment part is eccentrically provided at the upper end of the mounting column, and this mounting column is rotatably fixed to the machine frame about a vertical axis and a horizontal axis so that it can be tilted outward from the machine frame. The point is that a stopper is provided to restrict the range of rotation around each axis of the column.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. The drawings show an auger-type ditch excavator, which is connected to the rear of a tractor body 2 via a three-point linkage 1 as shown in FIGS. 1 and 2. A machine frame 3 to be mounted, an auger 4 rotatably installed vertically at the front of the machine frame 3, an auger cylinder 5 with an open front provided surrounding the auger 4, and an auger 4. a shaping cover 7 for shaping the groove 6 excavated by the excavated soil, a soil discharge cover 8 for discharging soil laterally over the excavated area, a tank 9 for storing rice husks to fill the groove 6, and a tank 9 for storing rice husks for filling the groove 6. Buried pipe 1
0 is provided with a mounting support 11 etc. to support it.

The mounting support 11 is configured in an inverted shape, and a frame-shaped buried pipe mounting portion 12 is provided at the upper end portion eccentric from the vertical rod portion.

A rolled-up buried pipe 10 is attached to the buried pipe attachment part 12, and the buried pipe 10 is taken out from, for example, the central portion, and sequentially buried into the groove 6 through the shaping cover 7. .

The mounting support 11 has a vertical cylinder 13 as shown in FIGS. 3 to 5.
It has a bracket 15 that is rotatably inserted into and supported by the vertical cylinder body 13 and is slidable on a fan-shaped receiving plate 14 at the upper end of the vertical cylinder 13, and a buried pipe attachment part 12 is provided on the receiving plate 14 side. tank 9
Strappers 16 and 17 are provided to restrict the bracket 15 at an upper position and a position rearwardly away from the machine frame 3, and the bracket 15 can be fixed at both positions by a fixing pin 18 that can be inserted and removed.

The vertical cylinder 13 is connected to the horizontal axis 2 in the front-rear direction via the support cylinder 19.
0, and its horizontal shaft 20 is rotatably inserted into a horizontal cylinder 21 mounted on the rear end of one side of the machine frame 3.

Further, the support cylinder 19 is provided with a projection 22, and on the side of the horizontal cylinder 21, a stopper 23.24 is provided to restrict the projection 22 between a position where the mounting column 11 stands up and a position where it falls laterally.
The horizontal shaft 20 is fixed to the horizontal cylinder body 21 by a fixing pin 25 at a position where the mounting column 11 stands up.

Note that the fixing pin 25 can be freely inserted and removed.

Next, the action will be explained.

The solid line in FIGS. 1 and 2 indicates the buried pipe attachment part 12
Although the buried pipe 10 is shown set upward, the buried pipe 10 is attached to the buried pipe attachment portion 12 in the following manner.

First, the fixing pin 18 is removed, and the mounting column 11 is rotated in the direction indicated by the arrow a.

Then, since the buried pipe attachment part 12 is in an eccentric state with respect to the attachment column 11, it gradually comes off from above the tank 9 to the rear as it rotates, and as shown by the imaginary line in FIG. At the position where the tube attachment part 12 is removed to the rear of the machine frame 3, the bracket 15 comes into contact with the stopper 17 and its rotation is regulated, so that the mounting column 11 does not rotate rearward more than necessary. Then, the individual pin 18 is inserted and fixed at the position where both are in contact.

When the fixing of the mounting strut 11 is completed in this way with the buried pipe attachment part 12 protruding backwards from the machine frame 3, the fixing pin 25 is then removed and the mounting strut 11 is rotated around the horizontal axis 20 in the direction indicated by the arrow C. tilt it laterally.

In this case, the tilting is done gradually, and the mounting column 11
When the pipe falls completely horizontally, the protrusion 22 comes into contact with the stopper 24, and the mounting support 11 becomes unable to tilt as shown by the imaginary line d in FIG. Attach the buried pipe 10 of
After standing up the underground pipe 10, it is only necessary to rotate it so that the buried pipe attachment part 12 is above the tank 9. Therefore, even a single worker can easily and safely install the buried pipe 10. It is.

As described above, in the present invention, the mounting support having the buried pipe attachment part eccentrically is provided on the machine frame so that it can be rotated and fixed around the vertical and horizontal axes so as to tilt outward from the machine frame. When installing, it is only necessary to tilt the mounting support outward from the machine frame, and therefore, the installation can be easily and safely carried out by one person.

In addition, a stopper is provided to restrict the rotation range around each axis, so the mounting column will not rotate more than necessary during tilting operations, and therefore, your hands will not be caught due to excessive rotation. In addition, it is easy to insert the fixing pin during fixation.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, with the first figure being a side view and the second figure being a side view.
The figure is a plan view, Figure 3 is an enlarged view of the main part of Figure 1, Figure 4 is a view taken along the line A-A in Figure 3, and Figure 5 is a view taken along the line B-B in Figure 3. be. 3... Machine frame, 10... Buried pipe, 11.
...Mounting support, 12...Buried pipe attachment part,
13... Vertical tube body, 14... Receiving plate, 16
．． 17,23.24... Stopper, 18,2
5...Fixing pin, 20...Horizontal axis, 2
1...Horizontal cylinder.

Claims (1)

[Scope of utility model registration request] In a trench excavator that excavates a trench and unwinds and sequentially buries buried pipes in the trench, a buried pipe mounting section is provided eccentrically at the upper end of the mounting column, and this mounting column is tilted outward from the machine frame. A trench excavator characterized in that the machine frame is rotatably fixed to the machine frame about a vertical axis and a horizontal axis, and a stopper is provided for regulating the range of rotation of the mounting support around each axis. Buried pipe installation device.