JPH0671531U - Rod steady holder device for continuous wall construction machine in the ground - Google Patents

Abstract

(57) [Summary] [Purpose] The excavating rods that are lined up in a line on the continuous wall construction machine can be rotated 90 degrees in one direction around the central rod, and the machine body can be swung even in a narrow space. Without
The excavation direction can be changed by 90 degrees. [Structure] A base portion of a rod holder 9 is attached to a side by shifting a center of a width of a leader 2, and a tip portion of the rod holder 9 is connected to a central rod 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rod steadying holder device of a leader fixed type continuous wall construction machine used for forming an underground wall for earth retaining and a bottom plate for burying pipes in sewer works.

[0002]

[Prior art]

 As shown in Fig. 4, the rod holder of the conventional continuous wall construction machine, which prevents the rod from swinging, has the base of the rod holder B attached to the center of the width of the leader A, and its tip end is aligned in a horizontal line. It was a straight one connected to the central rod C.

[0003]

[Problems to be solved by the device]

 When burying pipes in sewer construction, a bottom wall with earth retaining walls is formed on both sides of the pipe in the direction of burying the pipes to prevent collapse of soil, and then the pipe is placed between the underground walls on both sides. The formation of the underground wall is carried out so that the three rods for excavation that are connected in line and suspended in the front part of the continuous wall construction machine are parallel to the embedding direction of the pipe. Towards the end, the screw below the rod is used to continuously excavate.

Then, after forming the underground wall, this time, the three rods connected and arranged in a line are rotated 90 degrees about the central rod C so as to be perpendicular to the embedding direction of the pipe. The base plate of the rod holder B is attached to the center of the width of the leader and the tip of the rod holder is at the center of the rod as shown in Fig. 4. Since it is connected to C, when the rod is rotated, one of the left and right rods D is supported by the rod holder B and cannot be further rotated as shown by the chain line. Therefore, in order to rotate 90 degrees, the main body of the continuous wall construction machine must be swung, but swiveling in a narrow space is impossible.

From the above point of view, the present invention makes it possible to rotate rods that are connected and arranged on a line of a continuous wall construction machine in one direction about the center rod by 90 degrees, and rotate the main body of the continuous wall construction machine even in a narrow space. It is an object of the present invention to provide a steady rest holder device for a rod in a continuous wall construction machine capable of forming a bottom plate from an underground wall without performing the above.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the device of the present invention is characterized in that the base of the rod holder is attached to the side of the leader by shifting the center of the width.

[0007]

[Action]

 To explain the operation of the device of the present invention, since the base of the rod holder is attached to either side by shifting the center of the width of the leader, there is no support in the center of the width of the leader. Rotate the rod centered on the center rod of the rods aligned in the front to the side opposite to the base mounting side of the rod holder, and the rod at the end opposite to the base mounting side of the rod holder will It can be rotated to the center of the width and can be rotated 90 degrees.

[0008]

【Example】

 An embodiment of the device of the present invention will now be described with reference to the drawings. FIG. 1 is a plan view showing an embodiment of the device of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is another embodiment. FIG. 4 is a plan view showing a conventional example.

In the figure, numeral 1 is a main body of a continuous wall construction machine, and a leader 2 is attached to the front thereof. Reference numeral 3 denotes a rod hanging portion connected to a motor 5 of a driving portion 4 provided above the reader 2, and three rods 7 for excavation having an excavation blade 6 provided below the rod hanging portion 3 are rotatable. Is attached to. The three rods 7 are aligned with each other by the connecting fitting 8. 9 is a rod holder of a steady rest in which the base is attached to the left or right side by shifting the center of the width of the leader 2, and the tip is connected to the central rod 7. The shape of the rod holder 9 is shown in FIG. It is not limited to the shape shown in FIG. 3, but when the rods 7 aligned in a line around the central rod 7 rotate 90 degrees on the opposite side to which the base of the rod holder 9 is attached, the front end The shape may be such that the front part of the center of the width of the leader 2 is opened so that the rod 7 of is located in the center of the width of the leader 2.

[0010]

[Effect of device]

 According to the present invention, since the base of the rod holder does not exist in the center of the width of the leader of the continuous wall construction machine, the rods aligned with each other have the center rod on the opposite side to which the base of the rod holder is attached. It becomes possible to rotate 90 degrees to the center, and as a result, when excavating in a narrow place and changing the excavation direction by 90 degrees, it is not necessary to turn the continuous wall construction machine body, and The work efficiency has been remarkably improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the device of the present invention.

FIG. 2 is a side view showing an embodiment of the device of the present invention.

FIG. 3 is a plan view showing another embodiment of the device of the present invention.

FIG. 4 is a plan view showing a conventional example.

[Explanation of symbols]

 1 Continuous wall construction machine body 2 Leader 7 Rod 9 Rod holder

Claims (1)

[Scope of utility model registration request] 1. A rod steadying holder device for an underground continuous wall construction machine, characterized in that the base of the rod holder is attached to the side by shifting the center of the width of the leader.