JPH056768Y2 - - 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) When multi-work is performed with a conventional work machine of this kind, grooves 68 on both sides of the ridge 66 are formed on the membrane 67 covering the ridge 66, as shown in FIG. Since the membrane body 67 is held down by covering with soil 69 inside, there is a drawback that on a slope, the soil covering 69 is washed away by rainwater and the membrane body 67 is peeled off.

That is, unlike rice paddies, fields for growing vegetables are often sloped lands. When forming the ridges 66 and covering the membrane 67 on such a slope, there was a drawback that the top of the membrane 67 in the groove 68 became a water tread, and the covering soil was washed away.

In view of these conventional problems, the present invention prevents the soil covered on the membrane from flowing out by creating mounds in the trenches, and also makes it possible to easily adjust the spacing between the mounds according to the slope, etc. The purpose is to

(Means for Solving the Problem) As a means for that purpose, the present invention receives tilled soil with a front forming plate 10 located at the rear of the rotary tilling section 8 so as to cover the rear part of the tilling section 8. A ridge 15 is formed with a ridge former 14 provided at the lower part of the forming plate 10, and the membrane 18 is fed out onto the ridge 15 from the membrane feeding section 19, and then the membrane 18 is rolled out using the tread wheels 37 in the grooves 42 on both sides of the ridge 15. At the same time, the membrane body 1 is stepped on in the groove 42.
By covering soil on the ridge 15, the membrane 18 is formed on the ridge 15.
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 cylinder embankment member is moved over the earth embankment 56 raked up by the earth embankment member 41. 41 is provided on the side and above the front molding plate 10, and an adjustment means 65 for adjusting the operation timing of the drive means 48.
It has been established.

(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, when the timing adjustment circuit 61 adjusts the operation timing, the rotary solenoid 50 is intermittently excited and activated by the pulse signal 62.
Demagnetization is repeated, and the earth embankment member 41 moves up and down intermittently. Therefore, the earth embankment member 41 is placed inside the groove 42 between the ridges 15.
slides and scoops up soil, and after advancing a certain distance, the earth embankment member 41 moves up and down intermittently and climbs over the scooped up soil 56. And this mound 56
Since the membrane 18 is stepped on and covered with soil, the groove 4
2, mounds 56 are formed at predetermined intervals to prevent the covering soil 58 from being washed away. In addition, when making the embankment 56, since the earth embankment member 41 is located in front of the rear end of the ridge former 14, there may be weeds, stumps, etc. in the groove 42, and the earth embankment member 41 will catch them and move them. Even when doing so, the ridges 15 do not collapse. Further, since the driving means 48 is disposed on the side and above the front molding plate 10 located behind the rotary tilling section 8 so as to cover the rear part of the tilling section 8, the driving means for the earth embankment member 41 is 48 is not covered with soil, has good stability, is easy to install, and the interlocking means for interlocking the driving means 48 and the earth embankment member 41 can be short.

(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 indicated by the arrow a through a transmission mechanism inside the transmission case 13. It is driven to rotate.

Reference numeral 14 denotes a ridge forming machine, and a front forming plate 10 is attached to the rear end of the main cover 9 so as to cover the rear part of the tilling section 8.
Three ridges 15 are attached at equal intervals in the left and right direction on the rear side of the lower part of the ridge so that three ridges 15 can be formed at the same time. Each ridge former 14 is provided with a pair of left and right membrane guide rods 16 corresponding to both sides of the top of the ridge 15 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 sides 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. 25
is a lifting roller that lifts and guides the center part of the membrane body 18 fed out from the membrane body roll 17, and is arranged near the rear of the membrane body roll 17 at the left and right center of the membrane body feeding part 19, and It is rotatably supported by a support rod 26 passing under the 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.
These are tread wheels that are stepped on on both the left and right sides of the treadle, and there are four tread wheels arranged in the left and right direction, and each tread wheel 37 is attached to the support rod 38.
It is rotatably supported at the rear end of. Each support rod 3
8 is pivotally supported by a bracket 39 at the upper end of the rear cover 10 so as to be able to swing vertically, 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 a spatula type that slides in the groove 42 to collect soil, and is connected to the front molded plate 1.
It is attached to the rear end of an arm 45 which is pivotally supported by a pin 44 to a bracket 43 on the lower rear side of 0 so as to be able to move up and down, and is prevented from falling below the bottom of the groove 42 by a bolt 46 that abuts on the arm 45. It is regulated as follows. Bolt 46 is attached to bracket 43
It is screwed into a receiving plate 47 which is fixed to and can be adjusted up and down.

Reference numeral 48 denotes a drive means for moving the earth embankment member 41 up and down at intermittent operation timing, and the drive arm 4
It is composed of a rotary solenoid 50 with a rotary solenoid 9 and is located on the side and above the front molding plate 10. A rotation shaft 51 is provided below the rotary solenoid 50 and is 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 55 fixed to the rotating shaft 51.
It is connected to the arm 45 via. The rotary solenoid 50 is attached to a connecting rod 57 that connects the main cover 9 and the frame 22.

The rotary solenoid 50 includes transistors 59 and 6 connected in Darlington as shown in FIG.
0 is connected in series to the collector circuit of the transistor 60. A timing adjustment circuit 61 is connected to the base of the transistor 59, and a pulse signal 6 generated from the timing adjustment circuit 61 is connected to the base of the transistor 59.
2 (see FIG. 6).
The timing adjustment circuit 61 includes two variable resistors 63,
64, and the pulse generation time is controlled by the variable resistor 63.
T ₁ and pulse pause time T ₂ can be adjusted by a variable resistor 64, respectively. Note that the timing adjustment circuit 61 and variable resistors 63 and 64 constitute an operation timing adjustment means 65. Adjustment knobs for the resistors 63 and 64 are provided on the top side of the control box.

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 is brought into close contact with the ridge 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. 7, the membrane 18 can be coated in close contact with the ridges 15.

During this work, an intermittent pulse signal 62 from the timing adjustment circuit 61 causes the transistor 5 to
9 and 60 are intermittently turned on and off, and the rotary solenoid 50 is intermittently repeatedly energized and demagnetized. Since the rotary solenoid 50 is in a demagnetized state during the pulse pause time T ₂ , the earth embankment member 41 is lowered and scrapes up soil while sliding in the groove 42 .
Then, when the pulse signal 62 is generated after a predetermined pause time T _{of 2} minutes has elapsed, the rotary solenoid 5
0 is excited and the drive arm 49 rotates in the direction of the arrow shown in FIG. The arm 45 is rotated upward in the direction indicated by the arrow c in FIG. Therefore, the earth embankment member 41 climbs over the embankment 56, and thereafter, the embankment 56 is successively created in the groove 42 at regular intervals in the same manner. 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., as shown in FIG. This means that the covering soil 58 remains without being washed away, thereby preventing the covering soil 58 from being washed away.

During the work, the time T ₁ and time T ₂ of the pulse signal 62 are adjusted as appropriate using variable resistors 63 and 64 depending on conditions such as inclination. Then mound 5
The width, spacing, etc. of 6 can be changed according to the conditions.

Note that a plunger type solenoid may be used in place of the rotary solenoid 50, and the driving means 48 may be constituted by a motor.

Further, in the case of a three-strip type, the earth bank members 41 may be provided only in correspondence with the two-strip grooves 42, and this can also be implemented in a one-strip type.

(Effects of the invention) According to the invention, mounds are created in the trench at predetermined intervals by the intermittent up-and-down movement of the earthwork members, and the membrane is covered over the mounds to cover the slopes. However, it can prevent soil covering from being washed away by rainwater. In addition, the driving means for driving the earth embankment members up and down is configured with an electric drive means, and the intermittent operation timing can be adjusted, so that the earth mound can be moved up and down according to field conditions such as slope using pulse signals. You can freely and easily change and adjust the width, spacing, etc. Furthermore, 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 groove while straddling the lower ends of the left and right ridge formers, Even if there are weeds, etc. coming out from the sides in the ditch, or there are weeds, etc. at the bottom of the ditch, even if the earth embankment members move while catching the weeds, etc., the ridges will be destroyed by the weeds, etc. Never. 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. Furthermore, since the driving means for driving the earth embankment member is constituted by an electric driving means, there is a large degree of freedom in the mounting position, and it can be mounted as low as possible. By attaching the driving means to the side and above the front molded plate located at the rear of the rotary tilling section so as to cover the rear part of the tilling section, the driving means is not covered with soil and has good stability. This has the advantage that it is easy to install, and the interlocking mechanism that interlocks the drive means and the earthwork member can be short.

[Brief explanation of the drawing]

1 to 9 show an embodiment of the present invention,
Figure 1 is the overall side view, Figure 2 is the rear view, and Figure 3 is the overall side view.
The figure is the same plan view, Figure 4 is a cross-sectional side view of the main part, and Figure 5 is the same plan view.
6 is a waveform diagram, FIGS. 7 and 8 are sectional views of the covered state, FIG. 9 is a sectional side view of the same, and FIG. 10 is a sectional side view of a conventional example. 10... Front forming plate, 14... Ridge forming machine, 15
... ridge, 18 ... membrane body, 19 ... membrane body delivery part, 2
7...Soil covering chute, 37...Treading wheel, 41...
Earth embankment member, 42...Groove, 48...Driving means, 50
...Rotary solenoid, 56...Mound, 61
...Timing adjustment circuit, 65...Operation timing adjustment means.

Claims (1)

[Scope of utility model registration request] A front forming plate 10 located behind the rotary tilling unit 8 so as to cover the rear part of the tilling unit 8 receives the tilled soil, and a ridge former 14 is provided at the bottom of the front forming plate 10.
The membrane body 18 is fed out onto the ridge 15 from the membrane body feeding section 19, and the membrane body 18 is stepped on with the tread wheels 37 in the grooves 42 on both sides of the ridge 15,
2, by covering the membrane 18 with soil, the ridges 15
In a multi-purpose work machine that covers the membrane body 18 at the same time, soil is scraped up by sliding in the groove 42 in front of the covering position of the membrane body 18 and in front of the rear end of the ridge former 14. The earth embankment member 41 is provided to be movable up and down, and an electric drive means 48 for moving the earth embankment member 41 up and down at intermittent operation timings is attached to the front molded plate so as to overcome the mound 56 raked up by the earth embankment member 41. provided on the side and top of 10;
A trench bottom earth embankment device for a multi-purpose work machine is characterized in that an adjusting means 65 for adjusting the operation timing of the driving means 48 is provided.