JPH0452728B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a trench bottom earth embankment device for a multi-purpose work machine.

(Prior art) A ridge is formed by a ridge former at the rear of a rotary tiller, a membrane is fed out onto the ridge from a membrane feeding unit, and the membrane is stepped on with a tread wheel in the grooves on both sides of the ridge. A multi-purpose working machine in which the ridges are covered with a membrane by covering the membrane with soil in the groove is well known, as disclosed in Japanese Utility Model Publication No. 58-33868.

(Problems to be Solved by the Invention) In conventional working machines of this type, the membrane body is simply covered with soil in the trench and the membrane body is held down. The problem was that the membrane peeled off.

That is, unlike rice fields, fields for growing vegetables are often sloped lands. When covering such a slope with a membrane formed with ridges, there is a drawback that the top of the membrane in the groove becomes a waterway, and the soil covered with soil is washed away downstream.

In view of these conventional problems, the present invention provides a device that can prevent the covering soil on the membrane from being washed away.

(Means for Solving the Problem) As a means for solving the problem, the present invention forms the ridges 15 with a ridge forming machine 14 provided at the rear of the rotary cultivating section 8, and forms the ridges 15 on the ridges 15 from the membrane feeding section 19. 18 is rolled out, the tread wheel 37 is used to step on the membrane body 18 in the grooves 42 on both sides of the ridge 15, and the membrane body 18 is covered with soil in the groove 42.
In a multi-working machine configured to cover the ridge forming device 14, the ridge former 14
An earth embankment member 41 that slides in the groove 42 and scrapes up soil is provided in front of the rear end so as to be movable up and down, and the earth embankment member 41 is moved over the earth embankment 56 raked up by the earth embankment member 41. A driving means 48 is provided for intermittently moving up and down 41.

(Function) After cultivating the field with the rotary tiller 8, the ridge 15 is formed with the ridge former 14, the membrane 18 is fed out onto the ridge 15 from the membrane feeding unit 19, and trodden with the tread wheel 37, The membrane body 18 is covered with soil in the grooves 42 on both sides of the ridge 15. On the other hand, the earth embankment member 41 slides in the groove 42 between the ridges 15 and scrapes up the soil, and after advancing a certain distance, the earth embankment member 41 moves up and down intermittently and climbs over the raked earth 56. . Then, the membrane 18 is trampled over the mound 56 to cover it with soil.
Embankments 56 are formed in the groove 42 at predetermined intervals, and this prevents the covering soil 58 from being washed away. When making the earth mound 56, the earth embankment member 41 is located in front of the rear end of the ridge shaper 14, so if there are weeds, stumps, etc. in the groove 42, when moving by catching them with the earth embankment member 41. However, the ridges 15 will not collapse.

(Embodiment) Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In Figs. 7, a rotary tiller 8, a main cover 9, etc. The rotary tiller 8 comprises a claw shaft 11 and a large number of tilling claws 12. The claw shaft 11 is supported in the center by a transmission case 13 of the machine frame 7, and is rotated in the direction of the arrow a through a transmission mechanism inside the transmission case 13. Rotationally driven.

Reference numeral 14 denotes a ridge forming machine, which simultaneously forms three ridges on the lower rear side of the front forming plate 10 attached to the rear end of the main cover 9.
Three pieces are attached at equal intervals in the left and right direction so that the ridges 15 of the strip can be formed. Each ridge former 14
A pair of left and right membrane guide rods 16 corresponding to both sides of the top of the ridge 15 are provided so as to protrude rearward.

Reference numeral 17 denotes a membrane roll on which a membrane 18 is wound up, and the membrane 18 has a width sufficient to cover the three ridges 15. Reference numeral 19 denotes a membrane unwinding unit, which rotatably supports the membrane roll 17 and unwinds the membrane 18, and includes a pair of left and right support rollers 20 that support the membrane roll 17 from below, and a membrane roll 17 that supports the membrane roll 17 from below. It has a pair of left and right roll supports 21 that fit on both left and right ends of the roll 17. The support rollers 20 are made up of a pair of front and rear rollers, and the support rollers 20 are rotatably supported via a bracket by a frame 22 that is laterally attached to the upper and lower intermediate portions of the front molded body 10. The roll support 21 is for supporting the membrane roll 17 so that it does not fall off the support roller 20, and is provided at the rear end of a swing arm 24 attached to the frame 22 side. 2
Reference numeral 5 denotes a lifting roller that lifts and guides the center portion of the membrane body 18 fed out from the membrane body roll 17, and is disposed near the rear of the membrane body roll 17 at the left and right center of the membrane body feeding section 19. It is rotatably supported by a support rod 26 passing under the body roll 17.

Reference numeral 27 denotes a soil covering chute for discharging the soil raked up by the tilling claws 12 of the rotary tilling section 8 backward and covering the membrane body 18 on both the left and right sides of the ridge 15. There are four in each direction. Each soil covering chute 27 has a discharge cover 28 that projects rearward, and a receiving plate 29 is provided on the top plate side of each soil covering chute 27 so as to project forward toward the rotary tilling section 8 rather than the front forming plate 10. is provided. Further, a guide plate 30 in the left and right direction is provided below the four soil covering chute 27 so as to straddle each of these soil covering chute 27.

37 refers to the membrane body 18 drawn out on the ridge 15.
Four tread wheels 37 are arranged in the left and right direction, and each tread wheel 37 is rotatably supported at the rear end of a support rod 38 bent in a dogleg shape. Each support rod 38 is pivotally supported by a bracket 39 at the upper end of the rear cover 10 so as to be able to swing up and down, and is biased downward by a spring 40.

On the rear side of the front forming plate 10, four earth mounds are provided to be located in the vicinity of the sides of the ridge forming device 14, in front of the covering position of the membrane body 18 and in front of the rear end of the ridge forming device 14. A member 41 is provided. As shown in FIG. 4, the earth embankment member 41 is an inverted trapezoidal spatula type that slides in a groove 42 to scrape up soil, and is connected to a bracket 43 at the lower rear side of the front molded plate 10 by means of a pin 44 so that it can be connected up and down. It is attached to the rear end of a movably pivoted arm 45, and is regulated by a bolt 46 that abuts against the arm 45 so that it does not fall below the bottom of the groove 42.

The bolt 46 is attached to the receiving plate 4 fixed to the bracket 43.
It is screwed into 7 so that it can be adjusted up and down.

48 is a drive means for intermittently moving the earthwork member 41 up and down, and includes a rotary solenoid 50 with a drive arm 49 and a rotation shaft 51 supported in parallel with the frame 22 and supported by a bracket. This rotating shaft 51 is connected to the drive arm 49 via a lever 52 and a rod 53 at both ends thereof, and is also connected to a link 54 and a rod 5 fixed to the rotating shaft 51.
5 to the arm 45. The rotary solenoid 50 is configured to operate intermittently at predetermined time intervals using a timer or the like to move the earth embankment member 41 up and down so as to overcome the raked earth 56. In addition, solenoid 49
is attached to a connecting rod that connects the main cover 9 and the frame 22.

In the above configuration, the rotary device 5 is
The field is tilled by a rotary tiller 8, the tilled soil is received by a front forming plate 10 and guided to the side of each ridge forming machine 14, and three ridges 15 are formed by each ridge forming machine 14 at the same time. Then, the membrane body 18 is fed out from the membrane roll 17 of the membrane body feeding unit 19 across the three ridges 15, and this membrane body 18 is stepped into the groove 42 by the four tread wheels 37, and the membrane body 18 into close contact with the ridges 15. Next, after stepping on the membrane body 18, the rotary tilling section 8
The soil raked up by the soil is discharged backward through the soil covering chute 27, and the soil is covered with soil 5 on the membrane body 18 in the groove 42.
8 and press the membrane body 18. Therefore, as shown in FIG. 5, the membrane 18 can be covered in close contact with the ridges 15.

On the other hand, normally, the earth embankment member 41 is lowered and scrapes up soil while scraping inside the groove 42. When the vehicle has traveled a certain distance, the solenoid 50 is activated by a timer or the like, and the drive arm 49 is moved as shown in FIG.
Since it rotates in the direction of the arrow, the rod 53 and lever 5
2, the rotation shaft 51 rotates, and this rotation shaft 51
From the link 54 and the arm 45 via the rod 55
rotates upward in the direction of arrow c in Figure 4. Therefore, the earth embankment member 41 climbs over the embankment 56, and in the same manner, the earth embankment 5 is successively placed in the groove 42 at regular intervals.
I'm going to make 6. The membrane 18 is then covered from above this mound 56, so that the mound 56 is covered as shown in FIG.

If the embankment 56 is provided in this way, even if rainwater flows downstream over the membrane 18 in the groove 42 on a slope, etc., the soil will be covered by the height of the embankment 56 as shown in FIG. 58 will remain without being washed away, and not only will the covering soil 58 be washed away, but also the earth embankment member 41 will remain.
is located in front of the rear end of the ridge former 14, so
The groove 4 is straddled between the lower ends of the left and right ridge formers 14.
Even when there are weeds, stumps, etc. in the groove 42, when there are weeds, etc. coming out from the bottom of the ridge former 14, or when there are weeds, etc. at the bottom of the groove 42, the earth embankment member 41
Even if the weeds move while catching the weeds, etc., the ridges 15 will not be destroyed by the weeds, etc. That is, at the position of the earth embankment member 41, the ridges 15 to be formed are within the ridge shaper 14, so even if the earth embankment member 41 catches weeds, etc., it will not affect the ridges 15 being formed by the ridge shaper 14. There's nothing to do. Therefore, the ridge 15 and the embankment 5
The finished state of item 6 can be improved.

Note that the driving means 48 may be other than the solenoid 50, and may utilize the rotation of the pawl shaft 11.

Furthermore, in the case of a three-strip structure, the earth bank members 41 may be provided only in correspondence with the two-strip grooves 42, and it is also possible to provide one-strip structure.

(Effects of the Invention) The present invention is provided with an earth embankment member which is movable up and down and which slides in the groove to collect soil in front of the covering position of the membrane body and in front of the rear end of the ridge former. Since a drive means is provided to intermittently move the earth embankment member up and down so as to overcome the mounds raked up by the earth embankment member, it is possible to create mounds at predetermined intervals in the trench, and from above the mounds. Since the membrane is covered with soil, it is possible to prevent the soil from being washed away by rainwater even on sloped areas. Moreover, since the earth embankment member is located in front of the rear end of the ridge former, when there are weeds, stumps, etc. in the trench while straddling the lower ends of the left and right ridge formers,
When there are weeds etc. coming out from the bottom of the ridge former in the groove,
Alternatively, even when there are weeds, etc. at the bottom of the trench, even if the earth embankment member moves while catching the weeds, etc., the ridges will not collapse due to the weeds, etc. That is, at the position of the earth embankment member, the ridges to be formed are within the ridge former, so even if the earth embankment member catches weeds, etc., it will not affect the ridges being formed with the ridge former. Therefore, the finished state of the ridges and embankments can be improved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a rear view of the same, Fig. 3 is a plan view of the same, Fig. 4 is a cross-sectional side view of main parts, and Fig. 5 and the sixth
The figure is a cross-sectional view of the coated state, and FIG. 7 is a side view of the same cross-section. 5... Rotary device, 8... Rotary plowing section,
10... Front forming plate, 14... Ridge forming device, 15...
...Ribule, 18...Membrane body, 19...Membrane body delivery part, 27
... Soil covering chute, 37 ... Treading wheel, 41 ... Earth embankment member, 48 ... Drive means.

Claims (1)

[Claims] 1 Ridge former 1 installed at the rear of the rotary tiller 8
4 to form a ridge 15, and the ridge 15 is formed from the membrane body delivery part 19.
The membrane body 18 is rolled out upward, and the membrane body 18 is stepped on with the tread wheel 37 in the grooves 42 on both sides of the ridge 15, and the membrane body 18 is covered with soil in the groove 42. In the multi-purpose work machine, an earth embankment member 41 slides in the groove 42 to scrape up soil in front of the covering position of the membrane body 18 and in front of the rear end of the ridge former 14. A multi-working machine characterized by being provided with a drive means 48 for intermittently moving up and down the earth embankment member 41 so as to be able to move up and down freely and to overcome the mound 56 raked by the earth embankment member 41. ditch bottom earth embankment equipment.