JPS6014875Y2 - Tail cell blade in open cell blade shield machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a tail metsu cell blade in an open metsu cell blade shield machine.

Conventionally, open metsu cell blade shield machines construct structures using the gaps in the tail section, but as the structure becomes longer, the tail section must also be made longer, and when the tail section is made longer, the cutting path becomes curved. , there was a drawback that the open Metsu cell blade shield machine could not correspond to the curve.

Therefore, in this invention, the chi frame constituting the tail part and the Metsu cell blade provided on the outside thereof can be divided at any position and connected rotatably in the horizontal direction, making it possible to cope with curved cutting paths. To provide an open metsu cell blade shield machine in which when each blade slides, it engages with a structure that prevents gravel etc. from falling into the frame, allowing safe work.

An embodiment of this invention will be described below with reference to the drawings. In an open metsu cell blade shield machine in which the chi frame 2 is arbitrarily divided, the tail metsu cell blade 1 is divided at an arbitrary position and rotated in the horizontal direction. The engagement grooves 3 for connecting the upper and lower metsu cell blades are freely connected, and the upper part is exposed to the outside, and the lower part is exposed to the inside.

The divided tail messel blades 1 are pivotally connected by a hinge 4 as a means for horizontally rotatably connecting them.

Further, it is desirable that the rear end portion 5 of the tail blade be formed thin.

According to this invention, the tail Metsu cell blade 1 is divided at an arbitrary position and is connected horizontally rotatably with the hinge 4, so that the path of the open Metsu cell blade shield machine is curved while cutting. Each blade rotates around each hinge 4 even if it has a long tail, and the entire blade is flexible and bends according to the curve, so it can be used even if the tail part is made long. The engagement groove 3 for connecting the upper and lower Metsu cell blades is exposed on the top or outside, and the lower part is exposed on the inside, so that when the Metsu cell blades slide in the soil, the upper and lower Metsu cell blades engage. Even if the blades are engaged by the grooves, the gap created by the engaged state is not formed on the outer upper part of the blade, so gravel, etc. will not be caught in the grooves, and therefore gravel and earth and sand will fall into the inside of the Metsucell blade. This has the effect of allowing work to be carried out safely inside the machine without any problems.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of this invention, Fig. 2 is a side view showing an embodiment of this invention, and Fig. 3 is a partially cutaway side view showing an embodiment of this invention. FIG. 4 is a partially cutaway plan view showing an embodiment of this invention, and FIG. 5 is a sectional view showing an embodiment of this invention. 1... Tail Metsu Cell Blade, 2...
・Chi frame, 3...Engagement groove, 4...
・Hinge, 5...The rear end of the tail blade.

Claims (1)

[Scope of utility model registration request] In an open metsu cell blade shield machine in which the tail frame 2 is arbitrarily divided, the tail metsu cell blade 1
It is characterized by being divided at any position and arranged horizontally so as to be freely rotatable, and the engagement groove 3 for connecting the upper and lower Metsu cell blades is exposed to the outside at the upper part and to the inside at the lower part. A tail metsu cell blade.