JPH0568248U - Agricultural multi-sheet recovery device - Google Patents

Abstract

(57) [Summary] [Purpose] When peeling a sheet cut with a cutter from the soil surface, an agricultural multi-sheet that enables continuous work without obstructing the work covered by the soil It aims at providing the recovery device of. A cutter 10 that cuts a hem portion located in a furrow of a sheet 11 is provided, and a middle guide roller 12 that guides a sheet 11a of a non-covered portion of a sheet cut and divided by the cutter is provided behind the cutter. A side guide roller 13 is provided to guide the sheet 11b in the soil covering portion by displacing the sheet 11b in one or both of the directions rearward and downward of the middle guide roller, and a gap d in a stepped shape in side view between the divided left and right sheets. And a divided sheet take-up drum 14 is arranged behind these guide rollers.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an agricultural multi-sheet collecting device.

[0002]

[Prior Art]

 When cultivating lettuce, Chinese cabbage, cabbage, etc., the soil surface is raised to improve the heat retention of the field to improve seed germination and seedling survival, and to prevent soil from jumping up and weeds during rainfall. Multi-cultivation covering with vinyl film or other agricultural multi-sheets has become widespread, and it is recommended that the shaping plate attached to the rotary cultivator be used to upright the cultivated soil and at the same time to cover the soil surface after uprighting with the sheet. Multi-devices are also provided.

In the above-mentioned multi-cultivation, the sheet covering the soil surface needs to be recovered after a predetermined period of time, for example, at the time of harvesting the crop or the next tilling work. After splitting in two at the center and peeling off, the left and right two sheets are twisted in a rope shape to be collected, or after being split at the center in two, the central part of the guide roller is raised to raise the soil on the sheet on both the left and right sides. It has been proposed to remove the soil (Japanese Utility Model Publication No. 62-19164).

[0004]

[Problems to be solved by the device]

 However, in the case where the sheet is divided into two parts at the center and peeled off and collected like the above-mentioned conventional ones, the resistance at the time of peeling off is due to the fact that only the outer end side of each of the two divided sheets is covered with soil. There was an inconvenience that it could not be wound well because it was extremely biased to one side in the width direction.

[0005]

[Means for Solving the Problems]

 The present invention was devised based on the above-mentioned actual condition, and provided with a pair of left and right cutters for cutting at least the hem portion of a sheet that covers the ridge surface and has both right and left edges buried in the ridge grooves. A medium guide roller that guides and guides the sheet of the non-covered portion of the sheet cut and separated by the cutter to the rear is provided at the rear of the cutter, and the medium guide roller can be provided in one or both of the rear and lower sides of the middle guide roller. A side guide roller is provided at the biased position to guide and guide the sheet of the soil covering portion rearward so that a step-like gap in side view is formed between the divided left and right sheets. The gist is that a divided sheet winding drum is provided behind the guide roller.

[0006]

[Action]

 As the aircraft progressed, the sheet covering the ridge surface was cut by a cutter at the hem of the ridge and divided into a wide non-covered portion in the center and narrow coverd soil portions on the left and right sides. After that, it is wound around the winding drum and collected while being guided by the middle guide roller and the side guide roller, respectively.

[0007]

【Example】

 A configuration of the present invention will be described with reference to an embodiment shown in the drawings. 1 is a tractor machine, 2 is a lift arm, 3 is a top link, 4 is a lower link, 5 is a PTO shaft, and 6 is a lift rod that connects the lift arm 2 and the lower link 4. Reference numeral 7 is a sheet collecting device detachably connected to the machine 1, 7a is a machine frame thereof, and after power is transmitted from the PTO shaft 5 of the machine 1 to the gear case 8 via the universal joint shaft 5a, It is transmitted to the pair of left and right disk-shaped cutters 10 via the output shaft 9 and the transmission case 9a to rotate the cutters 10 in the arrow direction in FIG. As shown in FIG. 3, the left and right cutters 10 are set at the positions corresponding to the hem portion of the ridge groove a, and cut the inclined portion of the seat 11 which is out of the soil cover portion b. The cutter 10 may be configured so that the set position can be adjusted in the axial direction.

On the rear side of the gear case 8 and above and behind the cutter 10, there is a middle guide roller 12 that guides and guides backward the sheet 11a of the non-covered portion c of the sheet 11 cut and separated by the cutter 10. Further, behind the right and left end portions of the middle guide roller 12, side guide rollers 13 for guiding and guiding the sheet 11b of the soil covering portion b rearward are respectively rotatably provided on the machine frame 7a. By the way, the side guide roller 13 is arranged at a position rearward or downward from the middle guide roller 12 or at a position biased in one direction or both directions, whereby the left and right divided guide rollers 13 are divided as shown in FIG. A gap d is formed between the sheets 11a and 11b so as to have a stepped shape in a side view. This embodiment exemplifies a structure in which the side guide roller 13 is arranged so as to be biased rearward of the middle guide roller 12. A sheet winding drum 14 is rotatably provided behind the side guide rollers 13 and is provided near the shaft 14a of the winding drum 14 with a screw 15a at the shaft end between the drum side plates 14b. A small-diameter shaft 15 with a handle 15b provided around it is removably inserted. Reference numeral 16 is a grounding wheel provided below the rear portion of the machine frame 7a.

The middle guide roller 12, the side guide roller 13, and the winding drum 14 are configured to rotate in association with the cutter 11. That is, the gear 17 fixed to the extension end side of the output shaft 10 of the gear case 9 and the gear 18 fixed to the roller shaft 12a integral with the middle guide roller 12 always mesh with each other, and the middle guide roller shaft 12a and the side portion A roller shaft 13a integral with the guide roller 13 is interlockingly connected by a transmission belt 19, and the side guide roller shaft 13a and the winding drum shaft 14a are interlockingly connected by a transmission belt 20. With this interlocking structure, the cutter 10, the rollers 12, 13 and the winding drum 14 are interlocked with each other and rotate in the directions of the arrows in FIG. Further, the power transmitted to the winding drum shaft 14a by the transmission belt 20 rotates the drum 14 via the torque limiter 21 and winds the sheet, which is wound on the drum 14 during the operation. When the diameters of the sheets 11a and 11b become large, the take-up speed of the sheets 11a and 11b becomes faster than the forward speed of the machine 1, and excessive tension is applied to the sheets 11a and 11b. In this case, the torque limiter 21 is activated to stop the temporary winding, and when the tension is reduced, the winding is started again, so that the drum 14 can be wound as tightly as possible and can be finished compactly. ing. The core 14c of the drum 14 is detachably engaged with the drum shaft 14a from one side by means such as spline engagement. The drum core 14c may be a single core or may be divided into three pieces corresponding to the cut and separated sheets. Reference numeral 22 denotes an auxiliary plate that is detachably attached to the machine frame 7a and is used as an auxiliary for removing the sheet 11 when it is difficult to remove it.

In the above-mentioned embodiment, the sheet 11 is divided into three parts and peeled off and collected. However, when the ridge width is wide and therefore the sheet width is wide, the sheet is divided into three or more parts. It may be divided.

In the above-mentioned configuration, first, when starting the work, the sheet 11 is passed through the middle guide roller 12 and the side guide roller 13, and the leading end of the sheet 11 is guided to the core 14c of the winding drum 14 and the small diameter shaft 15 as shown in FIG. Wrap it so that it straddles the two axes, and complete the set. When the machine 1 is moved forward in this state, power is transmitted from the PTO shaft 5 of the machine 1 to the gear case 8 via the universal joint shaft 5a and then to the cutter 10 via the output shaft 9 and the transmission case 9a. Since the cutter 10 rotates, as the cutter 10 rotates, the sloping portion of the sheet 11 coated on the ridges is cut off from the soil cover portion b 1 as shown in FIG. Of the sheet 11 cut and separated by the cutter 10, the sheet 11a in the non-covered portion c is guided and guided by the middle guide roller 12 and the sheet 11b in the covered portion b is guided and guided by the side guide rollers 13, respectively. It is wound around the winding drum 14 and collected.

By the way, the side guide roller 13 is disposed rearward of the middle guide roller 12, and is located between the left and right sheets 11a and 11b at the portion from the cutting point by the cutter 10 to the guide rollers 12 and 13. Since the step-like gap d is formed in a side view, the soil e on the sheet 11b in the soil-covered portion b is shaken off to the left and right of the sheet 11b without being discharged onto the sheet 11a in the non-soil-covered portion a. Therefore, the soil e on the sheet 11b does not hinder the work, and the continuous work can be performed. In addition, the sheet 11a of the non-covered portion c and the sheet 11b of the covered portion b do not have the same resistance at the time of peeling off on one side in the width direction as in the conventional one, and therefore have uniform resistance over the entire width. The tape is not twisted or broken and is smoothly and reliably wound around the winding drum 14 and collected. Moreover, of the sheets after cutting and separation, the soil covering portion is only a narrow sheet (soil covering portion sheet 11b), and the wide sheet having a large ground contact area (non-soil covering portion sheet 11a) is not covered with soil, so peeling off. It is rational in relation to the take-up and take-up action (in the opposite case, the stripping and take-up load for a wide sheet increases narrowly and significantly more than that for a sheet, and due to uneven distribution of resistance on one side The smooth winding action of the seat is impeded). After the sheet 11 of one stroke is wound and collected on the drum 14 as described above, when the small-diameter shaft 15 is pulled out, the rolled sheet is loosened at the center portion, and the sheet is fed to the core 14c of the drum 14. At the same time, it can be easily removed from the drum shaft 14a. When the core 14c of the drum 14 is of a split type, the weight of one sheet after winding is light and post-processing is easy.

[0013]

[Effect of the device]

 Since the present invention is configured as described above, it is covered with the narrow sheet portion of the divided sheets, and a step-like gap is formed between the divided left and right sheets in a side view. Therefore, when stripping the sheet from the soil surface, the soil covered is easily removed without moving to the sheet on the non-covered side, so the soil on the sheet does not hinder the work and the continuous work is performed. Will be easier.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which the present invention is connected to a tractor.

FIG. 2 is a side view showing a state in which the present invention is connected to a tractor.

FIG. 3 is a front view of a cutter unit.

FIG. 4 is a perspective view showing a sheet cut state by a cutter.

FIG. 5 is a cross-sectional view showing a state of a sheet winding start end portion with respect to a drum.

FIG. 6 is a cross-sectional view showing how the small-diameter shaft is attached to the left and right side plates of the drum.

[Explanation of symbols]

 10 cutter 11 sheet 11a non-soil-covered sheet 11b soil-covered sheet 12 middle guide roller 13 side guide roller 14 sheet winding drum d stepped gap

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right cutters for cutting at least the hem portion of a sheet which covers the ridge surface and has both right and left edges buried in the ridge groove is provided, and a non-covered portion of the sheet cut and separated by the cutter is provided. A side that guides and guides the sheet rearward is provided at the rear of the cutter, and the sheet of the soil-covered portion is guided rearward at a position that is biased in one or both of the rear and lower sides of the middle guide roller. Partial guide rollers are provided so that a gap having a stepped shape in a side view is formed between the divided left and right sheets, and a divided sheet winding drum is arranged behind these guide rollers. A device for collecting agricultural multi-sheets, which is characterized in that