JP2554205Y2 - Agricultural mulch sheet cutting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural mulch sheet cutting apparatus.

[0002]

2. Description of the Related Art In the cultivation of lettuce, Chinese cabbage, cabbage, etc., in order to enhance the heat retention in the field to improve the germination of seeds and the survival of seedlings, and to prevent the soil from jumping up during rainfall and the occurrence of weeds. Multi-cultivation that covers the soil surface with a sheet of vinyl film or the like has become widespread, and a multi-device that covers the soil surface with a sheet while ridge shaping the soil with a shaping plate is also provided. Have been. This multi-unit is usually used in connection with a rotary tilling device mounted on a tractor or the like. In actual work, the leading end side of a roll-shaped sheet that is rotatably loaded into the multi-unit is ridged. After fixing to one end (tilling start end), the sheet is forcibly pulled out as the aircraft advances and covers the ridge surface, and soil is applied to the left and right ends of the sheet to prevent the sheet from turning over. At the end of one stroke of the sheet covering work, the sheet is cut and separated at the other end of the ridge, and the separated end is fixed to the field scene at the other end of the ridge, This work 1
It is repeated for each process.

[0003]

By the way, at present, the sheet is cut or separated by punching a hole in the sheet with a finger and tearing it with a hand or a hand-held sickle every time a sheet covering operation is completed. Cutting is performed by using a blade such as a cutter, which is not only time-consuming, but also involves dangers when using a cutter or the like because the hand may be injured. For this reason, various arrangements of a dedicated apparatus for cutting sheets have been considered, but in reality, they are expensive and have not yet been commercialized.

[0004]

SUMMARY OF THE INVENTION The present invention has been made based on the above-described situation. A multi-device is mounted behind a rotary tilling device, and a roll-shaped sheet is formed with the advance of the fuselage. In an agricultural multi-apparatus in which a cultivated top soil surface is covered with a sheet to be pulled out, a sheet tension roller divided into two right and left portions is rotatable in the vicinity of the roll-shaped sheet mounting portion, and is capable of moving forward and backward in a sheet tension direction. The gist of the invention is that a sheet cutting blade is mounted in a state where the sheet cutting blade is laid horizontally and immersed inward from the outer peripheral surface of the roller between the divided sheet tension rollers.

[0005]

At the end of one stroke of the sheet covering operation, the sheet tensioning roller is temporarily moved rearward (in the sheet loosening direction), and when the sheet is loosened, the sheet of the sheet tensioning roller portion is moved to the center from both left and right sides to narrow the sheet. It is made into a neck shape, and the narrow neck portion is inserted between the two sheet tension rollers. In this state, the sheet tension roller is again pushed forward (in the sheet tension direction) by hand. Is easily disconnected.
After the sheet cutting operation is completed, the sheet tensioning roller is returned to the original set position and fixed, and the process proceeds to the next step.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described with reference to an embodiment shown in the drawings. 1 is this machine of tractor, 2 is lift arm, 3 is top link, 4 is lower link, 5 is PTO
The shaft 6 is a lift rod connecting the lift arm 2 and the lower link 4. Reference numeral 7 denotes a rotary tilling device (hereinafter simply referred to as rotary) which is detachably connected to the machine 1.
Then, after the power is transmitted from the PTO shaft 5 of the machine 1 to the gear case 9 via the universal joint shaft 8, the power is transmitted to the tilling claw 11 via the chain case 10 to rotate the tilling claw 11. ing. 12 is a top mast, 13 is a toolbar, 14 is a tail wheel adjusting handle, and 15 is a ridge shaping machine arranged at the rear of the rotary 7.

A multi-device 16 is mounted on the toolbar 13 of the rotary 7. A sheet winding roll 17 wound in a roll shape is positioned above and behind the ridge shaping machine 15 and is rotatably mounted via a support rod 18. The sheet 19 pulled out from the sheet winding roll 17 covers the surface of the ridge a shaped by the ridge shaping machine 15, and
9 are pressed against the bottom of the furrow groove b by the sheet pressing roller 20, and the sheet
It is substantially the same as the conventional one in that the soil is continuously applied on the top and the sheet 19 is pressed against the soil surface by its weight.

In the vicinity of the roll-shaped sheet mounting portion c, sheet tension rollers 22, 2 divided into two parts, left and right.
2a is rotatably mounted so as to be rotatable and adjustable to advance and retreat in the tensioning direction of the seat 19. That is, toolbar 1
A roller mounting frame 26 formed in a U-shape in a side view is fitted into a rectangular tubular mounting member 25 supported by a stay 3 and a bolt 24 via a stay 23 and a bolt 24.
On a support shaft 27 laid horizontally on the sheet 6, two sheet tensioning rollers 22 and 22a divided into right and left are rotatably supported. Then, the two divided sheet tension rollers 22,
A sheet cutting blade 28 is mounted between the rollers 22a in a state of being immersed inward from the outer peripheral surfaces of the rollers 22, 22a.
Reference numeral 29 denotes a pin insertion boss having a groove 29a fixed to the mounting member 25. The T-shaped pin 30 inserted into the boss 29 is inserted into a pin hole 31 of the roller mounting frame 26 to mount the mounting member 25.
And the roller mounting frame 26 are connected and fixed.

As shown in FIG. 2, most of the conventional sheet tensioning rollers 22 'are formed in a single shape.
In the present invention, the sheet tension roller is divided, and a blade 28 for cutting the sheet is mounted between the divided rollers.

In the embodiment constructed as described above, the rotary 7 is fixed with the leading end of the sheet 19 pulled out from the sheet winding roll 17 fixed to the field scene on the tilling start end side.
Is driven to advance the machine 1 from one end of the field to the other end, the ridge is cultivated by the rotary 7 and the ridge a is shaped by the ridge shaping machine 15, and the surface of the ridge a is unwound from the sheet winding roll 17. The left and right ends of the sheet 19 located in the ridge groove b are pushed down by the sheet pressing roller 20 and then covered by the subsequent covering plate 21.
It is covered and fixed by. When the ridge shaping process is completed in this way, the T-shaped pin 30 is moved to the roller mounting frame 26.
And the roller mounting frame 26 is moved rearward (in the sheet relaxing direction). When the stretched sheet 19 is relaxed, the sheet 1 of the sheet stretching rollers 22, 22a is removed.
As shown in FIG. 6, as shown in FIG. 6, the left and right sides are manually moved toward the center to form a narrow neck, and the narrow neck portion A is inserted between the two sheet tensioning rollers 22, 22 a, and in this state, the roller mounting frame 26
When the sheet is pushed out again by hand forward (in the sheet tension direction), the narrow blade-shaped portion A of the sheet is cut by the cutting blade 28, so that the soil is applied to the end-side upper surface of the sheet 19 separated from the sheet winding roll 17. And fix it to the field scene. At the time of cutting the sheet 19, if the roller mounting frame 26 is moved while pressing with one hand so that the sheet winding roll 17 does not rotate, the other side of the sheet 19 is pressed and fixed to the soil surface by the sheet pressing roller 20. The sheet 19 is easily cut and separated without escaping. After the sheet cutting operation is completed, the T-shaped pin 30 is reinserted and the sheet tensioning rollers 20, 20a are inserted.
Is returned to the original setting position and fixed, and then moves to the next step.

[0011]

[Effect of the Invention] The present invention is configured as described above.
Every time one stroke of the sheet covering operation is completed, the necessary sheet can be easily cut only by moving the sheet tensioning roller back and forth with the left and right sides of the sheet of the sheet tensioning roller portion brought to the center, High cost due to the provision of expensive dedicated equipment for sheet cutting can be eliminated with a simple structure, and there is no need to bring a separate tool such as a sickle or cutter as in the past. The danger of damaging or the like can be eliminated.

[Brief description of the drawings]

FIG. 1 is a side view of a rotary tilling device equipped with the present invention.

FIG. 2 is a plan view of a conventional sheet tension roller.

FIG. 3 is a plan view of a main part in which a sheet cutting blade is mounted between two divided sheet tension rollers.

FIG. 4 is a side view of a sheet cutting blade.

FIG. 5 is an explanatory diagram of an operation of a sheet tension roller.

FIG. 6 is a front view illustrating a state of the sheet when the sheet is cut.

FIG. 7 is an enlarged side view of a connection portion between a mounting member and a roller mounting frame.

[Explanation of symbols]

 7 Rotary tillage device 16 Multi device 19 Sheet 22 Sheet tension roller 22a Sheet tension roller 28 Sheet cutting blade c Roll-shaped sheet mounting part

Claims (1)

(57) [Scope of request for utility model registration] 1. An agricultural mulch device comprising a mulch device mounted behind a rotary tilling device and covering a cultivated top soil surface with a sheet drawn from the roll sheet as the machine body advances. The sheet tension roller divided into two right and left parts is rotatably mounted in the vicinity of the mounting portion so as to be rotatable and adjustable to advance and retreat in the sheet tensioning direction, and is immersed between the divided sheet tension rollers inward of the outer peripheral surface of the roller. A sheet cutting device for an agricultural mulch, wherein a sheet cutting blade is mounted in a state.