JPH0230519Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a ditch excavation device developed for excavating ditches on forest roads, etc., for example.

(Conventional technology) Conventionally, when side ditches on forest roads, etc. are filled in due to landslides, etc., the ditches are dredged manually using a scoop and the soil dug out on the road is leveled. The earth and sand in the gutters are being removed.
This requires a lot of effort and expense. Another method was tried in which trenches were dredged using a small excavator, the excavated soil was piled up on the road, and then leveled using a grader, etc., but this method required two types of machinery. It is necessary and not efficient.

Furthermore, as shown in Japanese Patent Publication No. 48-41601, a tool bar towed by a vehicle includes a rake blade for roughing the ground, a plow for forming grooves in the roughened ground, and a plow for forming grooves in the roughened ground. There is a trench excavating device that is equipped with rollers that apply spreading pressure to the trench from the front. The tool bar is deployed and retracted rearward from the vehicle by a hydraulic cylinder, and is pressed downward when deployed.

(Problems to be Solved by the Invention) The trench excavation device described in this publication also requires a grader or the like to level the earth and sand excavated on the trench edge by the plow. Also, when the toolbar is deployed backwards from the vehicle using the hydraulic cylinder during excavation,
Since the rake blade, plow, and roller are arranged long and thin in the front-rear direction, the vehicle cannot turn around in this deployed state, and it is therefore difficult to form side ditches at curved corners of the road. Furthermore, the hydraulic cylinder that deploys and retracts the toolbar also applies a downward pressing force to the toolbar when it is deployed, but since it is originally used for deploying and retracting, a strong pressing force cannot be obtained.

This invention can efficiently carry out a series of tasks such as digging ditches, digging out the excavated soil, and leveling it on the road at the same time.It is also possible to form ditches in parts of the road that require small turns, such as curved corners. and
Furthermore, it is an object of the present invention to provide a gutter excavating device that can apply a strong pressing force to the gutter excavating blade portion.

[Structure of the invention] (Means for solving the problems) The present invention has a plurality of ripper yank holders 6, which are attached to the arm 5, of the ripper beam 4, which is installed horizontally at the rear of the towing vehicle 1 and is moved up and down by the ripper cylinder 2. By inserting the plurality of mounting protrusions 7 provided and removably fixing them with pins 8, the arm 5 is attached parallel to the ripper beam 4, and one end of this arm 5 is attached to the side of the towing vehicle 1. A side date cutter 12 is attached to the lower side of the protruding end of this arm 5, and this side date cutter 12 includes a side ditch excavation blade part 17 and a side part protruded from one side of the upper part of this ditch excavation blade part 17 to remove excavated soil from the side ditch. An excavation guide blade section 18 that excavates at the upper edge, and a leveling plate section 20 that is continuously provided at the tip of this excavation guide vane section 18 and that levels the soil excavated at the upper edge of the gutter onto the road surface.
This is a gutter excavation device which is provided in an inclined manner backward from the side of the towing vehicle 1.

(Function) In the present invention, a ripper beam 4 is pushed down by a ripper cylinder 2 at the rear of a towing vehicle 1, a side date cutter 12 attached to the ripper beam 4 is pressed through an arm 5 parallel to the ground, and a side ditch digging blade is used. The soil excavated by the section 17 is excavated to the upper edge of the gutter by the excavation guide vane section 18, and further,
This soil is leveled on the road surface by the leveling plate part 20.

(Examples) Hereinafter, the present invention will be described in detail with reference to examples shown in the drawings.

As shown in FIGS. 1 to 3, a track-type (track type) loader vehicle 1 as a towing vehicle is provided with a vertically moving vertically moving centering on a support shaft 3 by a pair of ripper cylinders 2 as hydraulic cylinders at the rear of the truck-type loader vehicle 1 as a towing vehicle. Since there is a ripper beam 4 as a moving member, an arm 5 projecting to the side of the vehicle 1 is attached to this ripper beam 4.

As shown in FIG. 4, the ripper beam 4 is
Ritsupa yank holders 6 for inserting and holding the Ritsupa yank are integrally provided at three locations at both ends and the center, and two of the holders 6 are provided with two holders integrally protruding from the arm 5. The arm 5 can be detachably attached to the ripper beam 4 by inserting the attachment protrusion 7 in a detachable manner, and further inserting the pin 8 laterally into the aligned pin holes to prevent the pin 8 from coming out. Fix it.

As shown in FIG. 2, the arm 5 is formed by bending a protruding end 11 that protrudes to the side of the vehicle 1 rearward, and the bent protruding end 11
Since the side detour 12 flanged to the lower side is attached with bolts 13 as shown in FIG.
When the vehicle 1 is rotated upward, the side dateer 12 can be pulled up to a sufficiently high position from the ground, and when the vehicle 1 is placed on a trailer or backed up, there is no risk of the side dateer 12 colliding with the lower surface. It can definitely be prevented.

The side decutcher 12 has an edge plate 15 with a cutting edge 14 set at a cutting angle of 30 degrees as shown in FIG. The plow is constructed by an inverted trapezoidal ditch digging blade part 17 formed by welding ribs 16, and a digging guide vane part 18 which is protruded from one side of the upper part of this ditch digging blade part 17 and excavates the excavated soil to the upper edge of the ditch. 19, and furthermore, a leveling plate 20 is provided on the back side of the tip of the digging guide blade part 18 of this plow 19 as a leveling plate part for leveling the soil excavated at the upper edge of the gutter onto the road surface. It is set up continuously. The leveling plate 20 is attached as shown in FIG.
Projecting pieces 21, 22 and ribs 2 protruding from the back surface of 8
3 are butted together and fixed with bolts 24.

As shown in FIG. 2, the plow 19 and the leveling plate 20 are provided in an inclined manner from the side of the vehicle 1 toward the rear. The angle of inclination is set to, for example, 42 degrees with respect to the arm 5. Further, as shown in FIG. 4, the plow 19 and the leveling plate 2
0 is formed so that the ground contact side (advance side) becomes a curved concave surface. For example, the cross sections of the plow 19 and the leveling plate 20 are formed into an arc with a radius of about 33 cm. Furthermore, the plow 19 and the leveling plate 20 are lined with an ultra-high molecular weight polyethylene material (trade name: Nurite) bolted to the ground contacting side, thereby making it easier for earth and sand to slide.

Next, to explain the operation of this embodiment, the vehicle 1 is set at the position for trench dredging work with the cut slope of the forest on the right side, the vertical movement of the side detitcher 12 is adjusted by the ripper cylinder 2, and the vehicle 1 is moved By moving plow 1 forward at a speed of 2 to 3 km/h,
The earth and sand excavated by the gutter excavation blade part 17 of No. 9 slides diagonally backward to the left along the excavation guide blade part 18 and is rolled up along the arc-shaped curved concave surface. As shown in Figure 5, it is automatically excavated at the upper left edge of gutter A. The earth and sand excavated onto the side ditch A is immediately spread onto the road surface by the leveling plate 20 and is leveled. Such excavation work is repeated 2 to 3 times to a depth of 10 to 15 cm each time, depending on the soil quality, to form a side ditch with a specified depth of 30 cm.

As shown in FIGS. 6 and 7, the support of the digging guide blade 18 of the plow 19 may be reinforced by a support member 31 between it and the arm 5.

[Effect of idea]

According to the present invention, a side ditcher consisting of a ditch digging blade part, a digging guide vane part, and a leveling plate part is attached to the ripper beam at the rear of the towing vehicle in an inclined manner through an arm, so that the side ditcher can be used for digging ditches and the upper edge of ditches. A series of operations such as digging out the earth and sand and leveling the earth and sand on the road surface can be performed efficiently at the same time, saving labor, improving work efficiency, and reducing costs associated with this type of work. In addition, by inserting a plurality of mounting protrusions provided on the arm into a plurality of holders for the ripper yanks of a ripper beam installed horizontally at the rear of the towing vehicle and moved up and down by a ripper cylinder, the pin can be removably fixed. , an arm is attached parallel to the ripper beam, one end of this arm protrudes to the side of the towing vehicle, and a side dateschia is attached to the lower side of the protruding end of this arm, so that this side dateschia is attached to the rear of the towing vehicle. It is also possible to form side ditches in areas that are located close to each other and require a small turning radius, such as around a bend in a road. Furthermore, since we used the ripper cylinder, the ripper beam, and the ripper shank holder, which were originally provided for strong press-fitting of the ripper, to push down the side date cutter, we used the side ditch excavation blade of the side date cutter to use the same method as the ripper. A gutter can be pressed against the ground with a strong force and has a cross-sectional shape of sufficient width and depth. and,
The ripper attachment base member such as the ripper beam can be effectively used as an alternative attachment to the ripper, and there is also the advantage that the detitcher attachment can be easily attached and detached by attaching and detaching the pin when transporting the machine.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the gutter excavation device of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view thereof, Fig. 4 is a perspective view of the device when it is raised, and Fig. 5 is FIG. 6 is a plan view of a modified example of the present invention, and FIG. 7 is a front view thereof. 1... Truck type loader vehicle as a towing vehicle, 2... Ripper cylinder as a hydraulic cylinder, 4... Ripper beam as a vertically moving member, 5
...Arm, 6...Ritupa yank holder, 7
... Mounting protrusion, 8 ... Pin, 11 ... Projection end, 12 ... Side date cutter, 17 ... Gutter digging blade part, 18 ... Excavation guide blade part, 20 ... Leveling plate part As a leveling plate.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A plurality of mounting protrusions provided on the arm are inserted into a plurality of holders for the ripper yank of a ripper beam which is installed horizontally at the rear of the towing vehicle and is moved up and down by a ripper cylinder. By removably fixing the arm with a pin, the arm is attached parallel to the ripper beam, one end of this arm protrudes to the side of the towing vehicle, and a side detour is attached to the lower side of the protruding end of this arm. Datsutiya has a gutter excavation blade part,
An excavation guide vane protrudes from one side of the upper part of the gutter excavation blade and excavates the excavated soil to the upper edge of the gutter; A gutter excavator characterized in that a leveling plate part for leveling the road surface is provided in an inclined manner from the side of the towing vehicle to the rear. (2) The gutter excavation device according to claim 1, wherein the arm is formed by bending a protruding end portion protruding to the side of the towing vehicle rearward. (3) Gutter excavation according to claim 1 of the utility model registration claim, characterized in that the gutter excavation blade part, the digging guide blade part, and the leveling plate part are formed so that the ground contacting surface is a curved concave surface. Device. (4) The utility model registration claim 1 or 2 is characterized in that the side ditch excavating blade part, the digging guide blade part, and the leveling plate part are lined with ultra-high molecular weight polyethylene material on the ground contacting surface. The gutter excavation device according to item 3. (5) The side ditch excavating device according to claim 1, wherein the digging guide blade portion is reinforced with a support member between it and the arm.